diff options
Diffstat (limited to 'drivers')
593 files changed, 43342 insertions, 7659 deletions
diff --git a/drivers/Makefile b/drivers/Makefile index 808e0ae..54ec5e7 100644 --- a/drivers/Makefile +++ b/drivers/Makefile @@ -5,7 +5,7 @@ # Rewritten to use lists instead of if-statements. # -obj-$(CONFIG_HAVE_GPIO_LIB) += gpio/ +obj-y += gpio/ obj-$(CONFIG_PCI) += pci/ obj-$(CONFIG_PARISC) += parisc/ obj-$(CONFIG_RAPIDIO) += rapidio/ diff --git a/drivers/acpi/namespace/nsnames.c b/drivers/acpi/namespace/nsnames.c index cffef1b..549db42 100644 --- a/drivers/acpi/namespace/nsnames.c +++ b/drivers/acpi/namespace/nsnames.c @@ -137,6 +137,10 @@ char *acpi_ns_get_external_pathname(struct acpi_namespace_node *node) /* Calculate required buffer size based on depth below root */ size = acpi_ns_get_pathname_length(node); + if (!size) { + ACPI_ERROR((AE_INFO, "Invalid node failure")); + return_PTR(NULL); + } /* Allocate a buffer to be returned to caller */ @@ -229,6 +233,10 @@ acpi_ns_handle_to_pathname(acpi_handle target_handle, /* Determine size required for the caller buffer */ required_size = acpi_ns_get_pathname_length(node); + if (!required_size) { + ACPI_ERROR((AE_INFO, "Invalid node failure")); + return_ACPI_STATUS(AE_ERROR); + } /* Validate/Allocate/Clear caller buffer */ diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c index 233c40c..89f3b2a 100644 --- a/drivers/acpi/pci_link.c +++ b/drivers/acpi/pci_link.c @@ -113,20 +113,23 @@ acpi_pci_link_check_possible(struct acpi_resource *resource, void *context) switch (resource->type) { case ACPI_RESOURCE_TYPE_START_DEPENDENT: + case ACPI_RESOURCE_TYPE_END_TAG: return AE_OK; case ACPI_RESOURCE_TYPE_IRQ: { struct acpi_resource_irq *p = &resource->data.irq; if (!p || !p->interrupt_count) { - printk(KERN_WARNING PREFIX "Blank IRQ resource\n"); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Blank _PRS IRQ resource\n")); return AE_OK; } for (i = 0; (i < p->interrupt_count && i < ACPI_PCI_LINK_MAX_POSSIBLE); i++) { if (!p->interrupts[i]) { - printk(KERN_WARNING PREFIX "Invalid IRQ %d\n", - p->interrupts[i]); + printk(KERN_WARNING PREFIX + "Invalid _PRS IRQ %d\n", + p->interrupts[i]); continue; } link->irq.possible[i] = p->interrupts[i]; @@ -143,15 +146,16 @@ acpi_pci_link_check_possible(struct acpi_resource *resource, void *context) &resource->data.extended_irq; if (!p || !p->interrupt_count) { printk(KERN_WARNING PREFIX - "Blank EXT IRQ resource\n"); + "Blank _PRS EXT IRQ resource\n"); return AE_OK; } for (i = 0; (i < p->interrupt_count && i < ACPI_PCI_LINK_MAX_POSSIBLE); i++) { if (!p->interrupts[i]) { - printk(KERN_WARNING PREFIX "Invalid IRQ %d\n", - p->interrupts[i]); + printk(KERN_WARNING PREFIX + "Invalid _PRS IRQ %d\n", + p->interrupts[i]); continue; } link->irq.possible[i] = p->interrupts[i]; @@ -163,7 +167,8 @@ acpi_pci_link_check_possible(struct acpi_resource *resource, void *context) break; } default: - printk(KERN_ERR PREFIX "Resource is not an IRQ entry\n"); + printk(KERN_ERR PREFIX "_PRS resource type 0x%x isn't an IRQ\n", + resource->type); return AE_OK; } @@ -199,6 +204,9 @@ acpi_pci_link_check_current(struct acpi_resource *resource, void *context) switch (resource->type) { + case ACPI_RESOURCE_TYPE_START_DEPENDENT: + case ACPI_RESOURCE_TYPE_END_TAG: + return AE_OK; case ACPI_RESOURCE_TYPE_IRQ: { struct acpi_resource_irq *p = &resource->data.irq; @@ -208,7 +216,7 @@ acpi_pci_link_check_current(struct acpi_resource *resource, void *context) * particularly those those w/ _STA disabled */ ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Blank IRQ resource\n")); + "Blank _CRS IRQ resource\n")); return AE_OK; } *irq = p->interrupts[0]; @@ -224,7 +232,7 @@ acpi_pci_link_check_current(struct acpi_resource *resource, void *context) * return at least 1 IRQ */ printk(KERN_WARNING PREFIX - "Blank EXT IRQ resource\n"); + "Blank _CRS EXT IRQ resource\n"); return AE_OK; } *irq = p->interrupts[0]; @@ -232,10 +240,11 @@ acpi_pci_link_check_current(struct acpi_resource *resource, void *context) } break; default: - printk(KERN_ERR PREFIX "Resource %d isn't an IRQ\n", resource->type); - case ACPI_RESOURCE_TYPE_END_TAG: + printk(KERN_ERR PREFIX "_CRS resource type 0x%x isn't an IRQ\n", + resource->type); return AE_OK; } + return AE_CTRL_TERMINATE; } diff --git a/drivers/acpi/pci_slot.c b/drivers/acpi/pci_slot.c index b9ab030..dd376f7 100644 --- a/drivers/acpi/pci_slot.c +++ b/drivers/acpi/pci_slot.c @@ -6,8 +6,8 @@ * Thanks to Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> for code * review and fixes. * - * Copyright (C) 2007 Alex Chiang <achiang@hp.com> - * Copyright (C) 2007 Hewlett-Packard Development Company, L.P. + * Copyright (C) 2007-2008 Hewlett-Packard Development Company, L.P. + * Alex Chiang <achiang@hp.com> * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, @@ -158,6 +158,7 @@ register_slot(acpi_handle handle, u32 lvl, void *context, void **rv) if (IS_ERR(pci_slot)) { err("pci_create_slot returned %ld\n", PTR_ERR(pci_slot)); kfree(slot); + return AE_OK; } slot->root_handle = parent_context->root_handle; diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index d592dbb..b7f2963 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -272,6 +272,8 @@ static atomic_t c3_cpu_count; /* Common C-state entry for C2, C3, .. */ static void acpi_cstate_enter(struct acpi_processor_cx *cstate) { + /* Don't trace irqs off for idle */ + stop_critical_timings(); if (cstate->entry_method == ACPI_CSTATE_FFH) { /* Call into architectural FFH based C-state */ acpi_processor_ffh_cstate_enter(cstate); @@ -284,6 +286,7 @@ static void acpi_cstate_enter(struct acpi_processor_cx *cstate) gets asserted in time to freeze execution properly. */ unused = inl(acpi_gbl_FADT.xpm_timer_block.address); } + start_critical_timings(); } #endif /* !CONFIG_CPU_IDLE */ @@ -1418,6 +1421,8 @@ static inline void acpi_idle_update_bm_rld(struct acpi_processor *pr, */ static inline void acpi_idle_do_entry(struct acpi_processor_cx *cx) { + /* Don't trace irqs off for idle */ + stop_critical_timings(); if (cx->entry_method == ACPI_CSTATE_FFH) { /* Call into architectural FFH based C-state */ acpi_processor_ffh_cstate_enter(cx); @@ -1432,6 +1437,7 @@ static inline void acpi_idle_do_entry(struct acpi_processor_cx *cx) gets asserted in time to freeze execution properly. */ unused = inl(acpi_gbl_FADT.xpm_timer_block.address); } + start_critical_timings(); } /** diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c index 0489a7d..d13194a 100644 --- a/drivers/acpi/sleep/main.c +++ b/drivers/acpi/sleep/main.c @@ -280,9 +280,36 @@ static struct platform_suspend_ops acpi_suspend_ops_old = { .end = acpi_pm_end, .recover = acpi_pm_finish, }; + +static int __init init_old_suspend_ordering(const struct dmi_system_id *d) +{ + old_suspend_ordering = true; + return 0; +} + +static struct dmi_system_id __initdata acpisleep_dmi_table[] = { + { + .callback = init_old_suspend_ordering, + .ident = "Abit KN9 (nForce4 variant)", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "http://www.abit.com.tw/"), + DMI_MATCH(DMI_BOARD_NAME, "KN9 Series(NF-CK804)"), + }, + }, + {}, +}; #endif /* CONFIG_SUSPEND */ #ifdef CONFIG_HIBERNATION +static unsigned long s4_hardware_signature; +static struct acpi_table_facs *facs; +static bool nosigcheck; + +void __init acpi_no_s4_hw_signature(void) +{ + nosigcheck = true; +} + static int acpi_hibernation_begin(void) { acpi_target_sleep_state = ACPI_STATE_S4; @@ -316,6 +343,12 @@ static void acpi_hibernation_leave(void) acpi_enable(); /* Reprogram control registers and execute _BFS */ acpi_leave_sleep_state_prep(ACPI_STATE_S4); + /* Check the hardware signature */ + if (facs && s4_hardware_signature != facs->hardware_signature) { + printk(KERN_EMERG "ACPI: Hardware changed while hibernated, " + "cannot resume!\n"); + panic("ACPI S4 hardware signature mismatch"); + } } static void acpi_pm_enable_gpes(void) @@ -516,6 +549,8 @@ int __init acpi_sleep_init(void) u8 type_a, type_b; #ifdef CONFIG_SUSPEND int i = 0; + + dmi_check_system(acpisleep_dmi_table); #endif if (acpi_disabled) @@ -544,6 +579,13 @@ int __init acpi_sleep_init(void) &acpi_hibernation_ops_old : &acpi_hibernation_ops); sleep_states[ACPI_STATE_S4] = 1; printk(" S4"); + if (!nosigcheck) { + acpi_get_table_by_index(ACPI_TABLE_INDEX_FACS, + (struct acpi_table_header **)&facs); + if (facs) + s4_hardware_signature = + facs->hardware_signature; + } } #endif status = acpi_get_sleep_type_data(ACPI_STATE_S5, &type_a, &type_b); diff --git a/drivers/acpi/system.c b/drivers/acpi/system.c index d8e3f15..91dec44 100644 --- a/drivers/acpi/system.c +++ b/drivers/acpi/system.c @@ -26,6 +26,7 @@ #include <linux/proc_fs.h> #include <linux/seq_file.h> #include <linux/init.h> +#include <linux/string.h> #include <asm/uaccess.h> #include <acpi/acpi_drivers.h> diff --git a/drivers/acpi/tables/tbfadt.c b/drivers/acpi/tables/tbfadt.c index ccb5b64..a4a41ba 100644 --- a/drivers/acpi/tables/tbfadt.c +++ b/drivers/acpi/tables/tbfadt.c @@ -124,7 +124,7 @@ static struct acpi_fadt_info fadt_info_table[] = { static void inline acpi_tb_init_generic_address(struct acpi_generic_address *generic_address, - u8 byte_width, u64 address) + u8 bit_width, u64 address) { /* @@ -136,7 +136,7 @@ acpi_tb_init_generic_address(struct acpi_generic_address *generic_address, /* All other fields are byte-wide */ generic_address->space_id = ACPI_ADR_SPACE_SYSTEM_IO; - generic_address->bit_width = byte_width << 3; + generic_address->bit_width = bit_width; generic_address->bit_offset = 0; generic_address->access_width = 0; } @@ -343,11 +343,9 @@ static void acpi_tb_convert_fadt(void) * * The PM event blocks are split into two register blocks, first is the * PM Status Register block, followed immediately by the PM Enable Register - * block. Each is of length (xpm1x_event_block.bit_width/2) + * block. Each is of length (pm1_event_length/2) */ - WARN_ON(ACPI_MOD_16(acpi_gbl_FADT.xpm1a_event_block.bit_width)); - pm1_register_length = (u8) ACPI_DIV_16(acpi_gbl_FADT - .xpm1a_event_block.bit_width); + pm1_register_length = (u8) ACPI_DIV_2(acpi_gbl_FADT.pm1_event_length); /* The PM1A register block is required */ @@ -362,17 +360,14 @@ static void acpi_tb_convert_fadt(void) /* The PM1B register block is optional, ignore if not present */ if (acpi_gbl_FADT.xpm1b_event_block.address) { - WARN_ON(ACPI_MOD_16(acpi_gbl_FADT.xpm1b_event_block.bit_width)); - pm1_register_length = (u8) ACPI_DIV_16(acpi_gbl_FADT - .xpm1b_event_block - .bit_width); acpi_tb_init_generic_address(&acpi_gbl_xpm1b_enable, pm1_register_length, (acpi_gbl_FADT.xpm1b_event_block. address + pm1_register_length)); /* Don't forget to copy space_id of the GAS */ acpi_gbl_xpm1b_enable.space_id = - acpi_gbl_FADT.xpm1b_event_block.space_id; + acpi_gbl_FADT.xpm1a_event_block.space_id; + } } diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c index 30a3413..9127036 100644 --- a/drivers/acpi/thermal.c +++ b/drivers/acpi/thermal.c @@ -769,6 +769,47 @@ static void acpi_thermal_run(unsigned long data) acpi_os_execute(OSL_GPE_HANDLER, acpi_thermal_check, (void *)data); } +static void acpi_thermal_active_off(void *data) +{ + int result = 0; + struct acpi_thermal *tz = data; + int i = 0; + int j = 0; + struct acpi_thermal_active *active = NULL; + + if (!tz) { + printk(KERN_ERR PREFIX "Invalid (NULL) context\n"); + return; + } + + result = acpi_thermal_get_temperature(tz); + if (result) + return; + + for (i = 0; i < ACPI_THERMAL_MAX_ACTIVE; i++) { + active = &(tz->trips.active[i]); + if (!active || !active->flags.valid) + break; + if (tz->temperature >= active->temperature) { + /* + * If the thermal temperature is greater than the + * active threshod, unnecessary to turn off the + * the active cooling device. + */ + continue; + } + /* + * Below Threshold? + * ---------------- + * Turn OFF all cooling devices associated with this + * threshold. + */ + for (j = 0; j < active->devices.count; j++) + result = acpi_bus_set_power(active->devices.handles[j], + ACPI_STATE_D3); + } +} + static void acpi_thermal_check(void *data) { int result = 0; @@ -1624,6 +1665,8 @@ static int acpi_thermal_add(struct acpi_device *device) init_timer(&tz->timer); + acpi_thermal_active_off(tz); + acpi_thermal_check(tz); status = acpi_install_notify_handler(device->handle, diff --git a/drivers/acpi/utilities/utalloc.c b/drivers/acpi/utilities/utalloc.c index 3dfb8a4..e7bf34a 100644 --- a/drivers/acpi/utilities/utalloc.c +++ b/drivers/acpi/utilities/utalloc.c @@ -242,6 +242,10 @@ acpi_ut_initialize_buffer(struct acpi_buffer * buffer, { acpi_status status = AE_OK; + if (!required_length) { + WARN_ON(1); + return AE_ERROR; + } switch (buffer->length) { case ACPI_NO_BUFFER: diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index 37b9e16..e8a51a1 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -741,7 +741,7 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device) max_level = acpi_video_init_brightness(device); - if (device->cap._BCL && device->cap._BCM && device->cap._BQC && max_level > 0){ + if (device->cap._BCL && device->cap._BCM && max_level > 0) { int result; static int count = 0; char *name; @@ -753,7 +753,17 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device) device->backlight = backlight_device_register(name, NULL, device, &acpi_backlight_ops); device->backlight->props.max_brightness = device->brightness->count-3; - device->backlight->props.brightness = acpi_video_get_brightness(device->backlight); + /* + * If there exists the _BQC object, the _BQC object will be + * called to get the current backlight brightness. Otherwise + * the brightness will be set to the maximum. + */ + if (device->cap._BQC) + device->backlight->props.brightness = + acpi_video_get_brightness(device->backlight); + else + device->backlight->props.brightness = + device->backlight->props.max_brightness; backlight_update_status(device->backlight); kfree(name); diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index dc7596f..ef3e552 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -1273,7 +1273,7 @@ static ssize_t ahci_transmit_led_message(struct ata_port *ap, u32 state, void __iomem *mmio = ap->host->iomap[AHCI_PCI_BAR]; u32 em_ctl; u32 message[] = {0, 0}; - unsigned int flags; + unsigned long flags; int pmp; struct ahci_em_priv *emp; diff --git a/drivers/atm/fore200e.c b/drivers/atm/fore200e.c index d5c1bbf..73338d2 100644 --- a/drivers/atm/fore200e.c +++ b/drivers/atm/fore200e.c @@ -2562,7 +2562,8 @@ fore200e_load_and_start_fw(struct fore200e* fore200e) const struct firmware *firmware; struct device *device; struct fw_header *fw_header; - u32 *fw_data, fw_size; + const __le32 *fw_data; + u32 fw_size; u32 __iomem *load_addr; char buf[48]; int err = -ENODEV; @@ -2582,7 +2583,7 @@ fore200e_load_and_start_fw(struct fore200e* fore200e) return err; } - fw_data = (u32 *) firmware->data; + fw_data = (__le32 *) firmware->data; fw_size = firmware->size / sizeof(u32); fw_header = (struct fw_header *) firmware->data; load_addr = fore200e->virt_base + le32_to_cpu(fw_header->load_offset); @@ -3199,6 +3200,14 @@ static const struct fore200e_bus fore200e_bus[] = { {} }; -#ifdef MODULE_LICENSE MODULE_LICENSE("GPL"); +#ifdef CONFIG_PCI +#ifdef __LITTLE_ENDIAN__ +MODULE_FIRMWARE("pca200e.bin"); +#else +MODULE_FIRMWARE("pca200e_ecd.bin2"); +#endif +#endif /* CONFIG_PCI */ +#ifdef CONFIG_SBUS +MODULE_FIRMWARE("sba200e_ecd.bin2"); #endif diff --git a/drivers/auxdisplay/cfag12864b.c b/drivers/auxdisplay/cfag12864b.c index 683509f..eacb175 100644 --- a/drivers/auxdisplay/cfag12864b.c +++ b/drivers/auxdisplay/cfag12864b.c @@ -336,16 +336,9 @@ static int __init cfag12864b_init(void) "ks0108 is not initialized\n"); goto none; } + BUILD_BUG_ON(PAGE_SIZE < CFAG12864B_SIZE); - if (PAGE_SIZE < CFAG12864B_SIZE) { - printk(KERN_ERR CFAG12864B_NAME ": ERROR: " - "page size (%i) < cfag12864b size (%i)\n", - (unsigned int)PAGE_SIZE, CFAG12864B_SIZE); - ret = -ENOMEM; - goto none; - } - - cfag12864b_buffer = (unsigned char *) __get_free_page(GFP_KERNEL); + cfag12864b_buffer = (unsigned char *) get_zeroed_page(GFP_KERNEL); if (cfag12864b_buffer == NULL) { printk(KERN_ERR CFAG12864B_NAME ": ERROR: " "can't get a free page\n"); @@ -367,8 +360,6 @@ static int __init cfag12864b_init(void) if (cfag12864b_workqueue == NULL) goto cachealloced; - memset(cfag12864b_buffer, 0, CFAG12864B_SIZE); - cfag12864b_clear(); cfag12864b_on(); diff --git a/drivers/base/core.c b/drivers/base/core.c index 7d5c63c..068aa1c 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -116,12 +116,10 @@ static void device_release(struct kobject *kobj) dev->type->release(dev); else if (dev->class && dev->class->dev_release) dev->class->dev_release(dev); - else { - printk(KERN_ERR "Device '%s' does not have a release() " + else + WARN(1, KERN_ERR "Device '%s' does not have a release() " "function, it is broken and must be fixed.\n", dev->bus_id); - WARN_ON(1); - } } static struct kobj_type device_ktype = { diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c index b0be1d1..c9c92b0 100644 --- a/drivers/base/firmware_class.c +++ b/drivers/base/firmware_class.c @@ -184,7 +184,7 @@ firmware_data_read(struct kobject *kobj, struct bin_attribute *bin_attr, struct device *dev = to_dev(kobj); struct firmware_priv *fw_priv = dev_get_drvdata(dev); struct firmware *fw; - ssize_t ret_count = count; + ssize_t ret_count; mutex_lock(&fw_lock); fw = fw_priv->fw; @@ -192,14 +192,8 @@ firmware_data_read(struct kobject *kobj, struct bin_attribute *bin_attr, ret_count = -ENODEV; goto out; } - if (offset > fw->size) { - ret_count = 0; - goto out; - } - if (offset + ret_count > fw->size) - ret_count = fw->size - offset; - - memcpy(buffer, fw->data + offset, ret_count); + ret_count = memory_read_from_buffer(buffer, count, &offset, + fw->data, fw->size); out: mutex_unlock(&fw_lock); return ret_count; diff --git a/drivers/base/isa.c b/drivers/base/isa.c index d222239..efd5775 100644 --- a/drivers/base/isa.c +++ b/drivers/base/isa.c @@ -7,6 +7,7 @@ #include <linux/slab.h> #include <linux/module.h> #include <linux/init.h> +#include <linux/dma-mapping.h> #include <linux/isa.h> static struct device isa_bus = { @@ -141,6 +142,9 @@ int isa_register_driver(struct isa_driver *isa_driver, unsigned int ndev) isa_dev->dev.release = isa_dev_release; isa_dev->id = id; + isa_dev->dev.coherent_dma_mask = DMA_24BIT_MASK; + isa_dev->dev.dma_mask = &isa_dev->dev.coherent_dma_mask; + error = device_register(&isa_dev->dev); if (error) { put_device(&isa_dev->dev); diff --git a/drivers/base/memory.c b/drivers/base/memory.c index 4d4e0e7..3ad49a0 100644 --- a/drivers/base/memory.c +++ b/drivers/base/memory.c @@ -101,6 +101,21 @@ static ssize_t show_mem_phys_index(struct sys_device *dev, } /* + * Show whether the section of memory is likely to be hot-removable + */ +static ssize_t show_mem_removable(struct sys_device *dev, char *buf) +{ + unsigned long start_pfn; + int ret; + struct memory_block *mem = + container_of(dev, struct memory_block, sysdev); + + start_pfn = section_nr_to_pfn(mem->phys_index); + ret = is_mem_section_removable(start_pfn, PAGES_PER_SECTION); + return sprintf(buf, "%d\n", ret); +} + +/* * online, offline, going offline, etc. */ static ssize_t show_mem_state(struct sys_device *dev, @@ -189,9 +204,8 @@ memory_block_action(struct memory_block *mem, unsigned long action) } break; default: - printk(KERN_WARNING "%s(%p, %ld) unknown action: %ld\n", + WARN(1, KERN_WARNING "%s(%p, %ld) unknown action: %ld\n", __func__, mem, action, action); - WARN_ON(1); ret = -EINVAL; } @@ -262,6 +276,7 @@ static ssize_t show_phys_device(struct sys_device *dev, static SYSDEV_ATTR(phys_index, 0444, show_mem_phys_index, NULL); static SYSDEV_ATTR(state, 0644, show_mem_state, store_mem_state); static SYSDEV_ATTR(phys_device, 0444, show_phys_device, NULL); +static SYSDEV_ATTR(removable, 0444, show_mem_removable, NULL); #define mem_create_simple_file(mem, attr_name) \ sysdev_create_file(&mem->sysdev, &attr_##attr_name) @@ -350,6 +365,8 @@ static int add_memory_block(unsigned long node_id, struct mem_section *section, ret = mem_create_simple_file(mem, state); if (!ret) ret = mem_create_simple_file(mem, phys_device); + if (!ret) + ret = mem_create_simple_file(mem, removable); return ret; } @@ -394,6 +411,7 @@ int remove_memory_block(unsigned long node_id, struct mem_section *section, mem_remove_simple_file(mem, phys_index); mem_remove_simple_file(mem, state); mem_remove_simple_file(mem, phys_device); + mem_remove_simple_file(mem, removable); unregister_memory(mem, section); return 0; diff --git a/drivers/base/sys.c b/drivers/base/sys.c index 40fc14f..75dd6e2 100644 --- a/drivers/base/sys.c +++ b/drivers/base/sys.c @@ -168,19 +168,16 @@ int sysdev_driver_register(struct sysdev_class *cls, struct sysdev_driver *drv) int err = 0; if (!cls) { - printk(KERN_WARNING "sysdev: invalid class passed to " + WARN(1, KERN_WARNING "sysdev: invalid class passed to " "sysdev_driver_register!\n"); - WARN_ON(1); return -EINVAL; } /* Check whether this driver has already been added to a class. */ - if (drv->entry.next && !list_empty(&drv->entry)) { - printk(KERN_WARNING "sysdev: class %s: driver (%p) has already" + if (drv->entry.next && !list_empty(&drv->entry)) + WARN(1, KERN_WARNING "sysdev: class %s: driver (%p) has already" " been registered to a class, something is wrong, but " "will forge on!\n", cls->name, drv); - WARN_ON(1); - } mutex_lock(&sysdev_drivers_lock); if (cls && kset_get(&cls->kset)) { @@ -194,8 +191,7 @@ int sysdev_driver_register(struct sysdev_class *cls, struct sysdev_driver *drv) } } else { err = -EINVAL; - printk(KERN_ERR "%s: invalid device class\n", __func__); - WARN_ON(1); + WARN(1, KERN_ERR "%s: invalid device class\n", __func__); } mutex_unlock(&sysdev_drivers_lock); return err; diff --git a/drivers/block/aoe/aoechr.c b/drivers/block/aoe/aoechr.c index c04440c..181ebb8 100644 --- a/drivers/block/aoe/aoechr.c +++ b/drivers/block/aoe/aoechr.c @@ -6,6 +6,7 @@ #include <linux/hdreg.h> #include <linux/blkdev.h> +#include <linux/completion.h> #include <linux/delay.h> #include <linux/smp_lock.h> #include "aoe.h" @@ -36,7 +37,7 @@ struct ErrMsg { static struct ErrMsg emsgs[NMSG]; static int emsgs_head_idx, emsgs_tail_idx; -static struct semaphore emsgs_sema; +static struct completion emsgs_comp; static spinlock_t emsgs_lock; static int nblocked_emsgs_readers; static struct class *aoe_class; @@ -141,7 +142,7 @@ bail: spin_unlock_irqrestore(&emsgs_lock, flags); spin_unlock_irqrestore(&emsgs_lock, flags); if (nblocked_emsgs_readers) - up(&emsgs_sema); + complete(&emsgs_comp); } static ssize_t @@ -221,7 +222,7 @@ aoechr_read(struct file *filp, char __user *buf, size_t cnt, loff_t *off) spin_unlock_irqrestore(&emsgs_lock, flags); - n = down_interruptible(&emsgs_sema); + n = wait_for_completion_interruptible(&emsgs_comp); spin_lock_irqsave(&emsgs_lock, flags); @@ -269,7 +270,7 @@ aoechr_init(void) printk(KERN_ERR "aoe: can't register char device\n"); return n; } - sema_init(&emsgs_sema, 0); + init_completion(&emsgs_comp); spin_lock_init(&emsgs_lock); aoe_class = class_create(THIS_MODULE, "aoe"); if (IS_ERR(aoe_class)) { diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index dd7ea20..4225109 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -196,6 +196,7 @@ static int virtblk_probe(struct virtio_device *vdev) int err; u64 cap; u32 v; + u32 blk_size; if (index_to_minor(index) >= 1 << MINORBITS) return -ENOSPC; @@ -290,6 +291,13 @@ static int virtblk_probe(struct virtio_device *vdev) if (!err) blk_queue_max_hw_segments(vblk->disk->queue, v); + /* Host can optionally specify the block size of the device */ + err = virtio_config_val(vdev, VIRTIO_BLK_F_BLK_SIZE, + offsetof(struct virtio_blk_config, blk_size), + &blk_size); + if (!err) + blk_queue_hardsect_size(vblk->disk->queue, blk_size); + add_disk(vblk->disk); return 0; @@ -330,7 +338,7 @@ static struct virtio_device_id id_table[] = { static unsigned int features[] = { VIRTIO_BLK_F_BARRIER, VIRTIO_BLK_F_SEG_MAX, VIRTIO_BLK_F_SIZE_MAX, - VIRTIO_BLK_F_GEOMETRY, VIRTIO_BLK_F_RO, + VIRTIO_BLK_F_GEOMETRY, VIRTIO_BLK_F_RO, VIRTIO_BLK_F_BLK_SIZE, }; static struct virtio_driver virtio_blk = { diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig index e0bbbfb..d0ac944 100644 --- a/drivers/char/Kconfig +++ b/drivers/char/Kconfig @@ -36,6 +36,14 @@ config VT If unsure, say Y, or else you won't be able to do much with your new shiny Linux system :-) +config CONSOLE_TRANSLATIONS + depends on VT + default y + bool "Enable character translations in console" if EMBEDDED + ---help--- + This enables support for font mapping and Unicode translation + on virtual consoles. + config VT_CONSOLE bool "Support for console on virtual terminal" if EMBEDDED depends on VT @@ -578,11 +586,14 @@ config HVC_DRIVER It will automatically be selected if one of the back-end console drivers is selected. +config HVC_IRQ + bool config HVC_CONSOLE bool "pSeries Hypervisor Virtual Console support" depends on PPC_PSERIES select HVC_DRIVER + select HVC_IRQ help pSeries machines when partitioned support a hypervisor virtual console. This driver allows each pSeries partition to have a console @@ -593,6 +604,7 @@ config HVC_ISERIES depends on PPC_ISERIES default y select HVC_DRIVER + select HVC_IRQ help iSeries machines support a hypervisor virtual console. @@ -614,13 +626,18 @@ config HVC_XEN bool "Xen Hypervisor Console support" depends on XEN select HVC_DRIVER + select HVC_IRQ default y help Xen virtual console device driver config VIRTIO_CONSOLE - bool + tristate "Virtio console" + depends on VIRTIO select HVC_DRIVER + help + Virtio console for use with lguest and other hypervisors. + config HVCS tristate "IBM Hypervisor Virtual Console Server support" @@ -857,13 +874,6 @@ config DS1302 endif # RTC_LIB -config COBALT_LCD - bool "Support for Cobalt LCD" - depends on MIPS_COBALT - help - This option enables support for the LCD display and buttons found - on Cobalt systems through a misc device. - config DTLK tristate "Double Talk PC internal speech card support" depends on ISA diff --git a/drivers/char/Makefile b/drivers/char/Makefile index dc5a327..8a161c3 100644 --- a/drivers/char/Makefile +++ b/drivers/char/Makefile @@ -12,8 +12,8 @@ obj-y += mem.o random.o tty_io.o n_tty.o tty_ioctl.o tty_ldisc.o obj-$(CONFIG_LEGACY_PTYS) += pty.o obj-$(CONFIG_UNIX98_PTYS) += pty.o obj-y += misc.o -obj-$(CONFIG_VT) += vt_ioctl.o vc_screen.o consolemap.o \ - consolemap_deftbl.o selection.o keyboard.o +obj-$(CONFIG_VT) += vt_ioctl.o vc_screen.o selection.o keyboard.o +obj-$(CONFIG_CONSOLE_TRANSLATIONS) += consolemap.o consolemap_deftbl.o obj-$(CONFIG_HW_CONSOLE) += vt.o defkeymap.o obj-$(CONFIG_AUDIT) += tty_audit.o obj-$(CONFIG_MAGIC_SYSRQ) += sysrq.o @@ -48,6 +48,7 @@ obj-$(CONFIG_HVC_ISERIES) += hvc_iseries.o obj-$(CONFIG_HVC_RTAS) += hvc_rtas.o obj-$(CONFIG_HVC_BEAT) += hvc_beat.o obj-$(CONFIG_HVC_DRIVER) += hvc_console.o +obj-$(CONFIG_HVC_IRQ) += hvc_irq.o obj-$(CONFIG_HVC_XEN) += hvc_xen.o obj-$(CONFIG_VIRTIO_CONSOLE) += virtio_console.o obj-$(CONFIG_RAW_DRIVER) += raw.o @@ -63,7 +64,6 @@ obj-$(CONFIG_BRIQ_PANEL) += briq_panel.o obj-$(CONFIG_BFIN_OTP) += bfin-otp.o obj-$(CONFIG_PRINTER) += lp.o -obj-$(CONFIG_TIPAR) += tipar.o obj-$(CONFIG_APM_EMULATION) += apm-emulation.o @@ -88,7 +88,6 @@ obj-$(CONFIG_TOSHIBA) += toshiba.o obj-$(CONFIG_I8K) += i8k.o obj-$(CONFIG_DS1620) += ds1620.o obj-$(CONFIG_HW_RANDOM) += hw_random/ -obj-$(CONFIG_COBALT_LCD) += lcd.o obj-$(CONFIG_PPDEV) += ppdev.o obj-$(CONFIG_NWBUTTON) += nwbutton.o obj-$(CONFIG_NWFLASH) += nwflash.o diff --git a/drivers/char/ds1302.c b/drivers/char/ds1302.c index fada6dd..c5e67a6 100644 --- a/drivers/char/ds1302.c +++ b/drivers/char/ds1302.c @@ -20,10 +20,11 @@ #include <linux/miscdevice.h> #include <linux/delay.h> #include <linux/bcd.h> +#include <linux/smp_lock.h> +#include <linux/uaccess.h> +#include <linux/io.h> -#include <asm/uaccess.h> #include <asm/system.h> -#include <asm/io.h> #include <asm/rtc.h> #if defined(CONFIG_M32R) #include <asm/m32r.h> @@ -153,9 +154,7 @@ static unsigned char days_in_mo[] = /* ioctl that supports RTC_RD_TIME and RTC_SET_TIME (read and set time/date). */ -static int -rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd, - unsigned long arg) +static long rtc_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { unsigned long flags; @@ -165,7 +164,9 @@ rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd, struct rtc_time rtc_tm; memset(&rtc_tm, 0, sizeof (struct rtc_time)); + lock_kernel(); get_rtc_time(&rtc_tm); + unlock_kernel(); if (copy_to_user((struct rtc_time*)arg, &rtc_tm, sizeof(struct rtc_time))) return -EFAULT; return 0; @@ -217,6 +218,7 @@ rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd, BIN_TO_BCD(mon); BIN_TO_BCD(yrs); + lock_kernel(); local_irq_save(flags); CMOS_WRITE(yrs, RTC_YEAR); CMOS_WRITE(mon, RTC_MONTH); @@ -225,6 +227,7 @@ rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd, CMOS_WRITE(min, RTC_MINUTES); CMOS_WRITE(sec, RTC_SECONDS); local_irq_restore(flags); + unlock_kernel(); /* Notice that at this point, the RTC is updated but * the kernel is still running with the old time. @@ -244,8 +247,10 @@ rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd, if(copy_from_user(&tcs_val, (int*)arg, sizeof(int))) return -EFAULT; + lock_kernel(); tcs_val = RTC_TCR_PATTERN | (tcs_val & 0x0F); ds1302_writereg(RTC_TRICKLECHARGER, tcs_val); + unlock_kernel(); return 0; } default: @@ -282,7 +287,7 @@ get_rtc_status(char *buf) static const struct file_operations rtc_fops = { .owner = THIS_MODULE, - .ioctl = rtc_ioctl, + .unlocked_ioctl = rtc_ioctl, }; /* Probe for the chip by writing something to its RAM and try reading it back. */ diff --git a/drivers/char/dsp56k.c b/drivers/char/dsp56k.c index 33c466a..ca7c72a 100644 --- a/drivers/char/dsp56k.c +++ b/drivers/char/dsp56k.c @@ -36,10 +36,10 @@ #include <linux/smp_lock.h> #include <linux/firmware.h> #include <linux/platform_device.h> +#include <linux/uaccess.h> /* For put_user and get_user */ #include <asm/atarihw.h> #include <asm/traps.h> -#include <asm/uaccess.h> /* For put_user and get_user */ #include <asm/dsp56k.h> @@ -303,10 +303,10 @@ static ssize_t dsp56k_write(struct file *file, const char __user *buf, size_t co } } -static int dsp56k_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg) +static long dsp56k_ioctl(struct file *file, unsigned int cmd, + unsigned long arg) { - int dev = iminor(inode) & 0x0f; + int dev = iminor(file->f_path.dentry->d_inode) & 0x0f; void __user *argp = (void __user *)arg; switch(dev) @@ -331,8 +331,9 @@ static int dsp56k_ioctl(struct inode *inode, struct file *file, if (len > DSP56K_MAX_BINARY_LENGTH) { return -EINVAL; } - + lock_kernel(); r = dsp56k_upload(bin, len); + unlock_kernel(); if (r < 0) { return r; } @@ -342,12 +343,16 @@ static int dsp56k_ioctl(struct inode *inode, struct file *file, case DSP56K_SET_TX_WSIZE: if (arg > 4 || arg < 1) return -EINVAL; + lock_kernel(); dsp56k.tx_wsize = (int) arg; + unlock_kernel(); break; case DSP56K_SET_RX_WSIZE: if (arg > 4 || arg < 1) return -EINVAL; + lock_kernel(); dsp56k.rx_wsize = (int) arg; + unlock_kernel(); break; case DSP56K_HOST_FLAGS: { @@ -359,6 +364,7 @@ static int dsp56k_ioctl(struct inode *inode, struct file *file, if(get_user(out, &hf->out) < 0) return -EFAULT; + lock_kernel(); if ((dir & 0x1) && (out & 0x1)) dsp56k_host_interface.icr |= DSP56K_ICR_HF0; else if (dir & 0x1) @@ -373,14 +379,16 @@ static int dsp56k_ioctl(struct inode *inode, struct file *file, if (dsp56k_host_interface.icr & DSP56K_ICR_HF1) status |= 0x2; if (dsp56k_host_interface.isr & DSP56K_ISR_HF2) status |= 0x4; if (dsp56k_host_interface.isr & DSP56K_ISR_HF3) status |= 0x8; - + unlock_kernel(); return put_user(status, &hf->status); } case DSP56K_HOST_CMD: if (arg > 31 || arg < 0) return -EINVAL; + lock_kernel(); dsp56k_host_interface.cvr = (u_char)((arg & DSP56K_CVR_HV_MASK) | DSP56K_CVR_HC); + unlock_kernel(); break; default: return -EINVAL; @@ -472,7 +480,7 @@ static const struct file_operations dsp56k_fops = { .owner = THIS_MODULE, .read = dsp56k_read, .write = dsp56k_write, - .ioctl = dsp56k_ioctl, + .unlocked_ioctl = dsp56k_ioctl, .open = dsp56k_open, .release = dsp56k_release, }; diff --git a/drivers/char/efirtc.c b/drivers/char/efirtc.c index d57ca3e..67fbd7a 100644 --- a/drivers/char/efirtc.c +++ b/drivers/char/efirtc.c @@ -37,8 +37,9 @@ #include <linux/rtc.h> #include <linux/proc_fs.h> #include <linux/efi.h> +#include <linux/smp_lock.h> +#include <linux/uaccess.h> -#include <asm/uaccess.h> #include <asm/system.h> #define EFI_RTC_VERSION "0.4" @@ -51,8 +52,8 @@ static DEFINE_SPINLOCK(efi_rtc_lock); -static int efi_rtc_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg); +static long efi_rtc_ioctl(struct file *file, unsigned int cmd, + unsigned long arg); #define is_leap(year) \ ((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0)) @@ -146,9 +147,8 @@ convert_from_efi_time(efi_time_t *eft, struct rtc_time *wtime) } } -static int -efi_rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd, - unsigned long arg) +static long efi_rtc_ioctl(struct file *file, unsigned int cmd, + unsigned long arg) { efi_status_t status; @@ -175,13 +175,13 @@ efi_rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd, return -EINVAL; case RTC_RD_TIME: - + lock_kernel(); spin_lock_irqsave(&efi_rtc_lock, flags); status = efi.get_time(&eft, &cap); spin_unlock_irqrestore(&efi_rtc_lock,flags); - + unlock_kernel(); if (status != EFI_SUCCESS) { /* should never happen */ printk(KERN_ERR "efitime: can't read time\n"); @@ -203,11 +203,13 @@ efi_rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd, convert_to_efi_time(&wtime, &eft); + lock_kernel(); spin_lock_irqsave(&efi_rtc_lock, flags); status = efi.set_time(&eft); spin_unlock_irqrestore(&efi_rtc_lock,flags); + unlock_kernel(); return status == EFI_SUCCESS ? 0 : -EINVAL; @@ -223,6 +225,7 @@ efi_rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd, convert_to_efi_time(&wtime, &eft); + lock_kernel(); spin_lock_irqsave(&efi_rtc_lock, flags); /* * XXX Fixme: @@ -233,16 +236,19 @@ efi_rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd, status = efi.set_wakeup_time((efi_bool_t)enabled, &eft); spin_unlock_irqrestore(&efi_rtc_lock,flags); + unlock_kernel(); return status == EFI_SUCCESS ? 0 : -EINVAL; case RTC_WKALM_RD: + lock_kernel(); spin_lock_irqsave(&efi_rtc_lock, flags); status = efi.get_wakeup_time((efi_bool_t *)&enabled, (efi_bool_t *)&pending, &eft); spin_unlock_irqrestore(&efi_rtc_lock,flags); + unlock_kernel(); if (status != EFI_SUCCESS) return -EINVAL; @@ -256,7 +262,7 @@ efi_rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd, return copy_to_user(&ewp->time, &wtime, sizeof(struct rtc_time)) ? -EFAULT : 0; } - return -EINVAL; + return -ENOTTY; } /* @@ -265,8 +271,7 @@ efi_rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd, * up things on a close. */ -static int -efi_rtc_open(struct inode *inode, struct file *file) +static int efi_rtc_open(struct inode *inode, struct file *file) { /* * nothing special to do here @@ -277,8 +282,7 @@ efi_rtc_open(struct inode *inode, struct file *file) return 0; } -static int -efi_rtc_close(struct inode *inode, struct file *file) +static int efi_rtc_close(struct inode *inode, struct file *file) { return 0; } @@ -289,13 +293,12 @@ efi_rtc_close(struct inode *inode, struct file *file) static const struct file_operations efi_rtc_fops = { .owner = THIS_MODULE, - .ioctl = efi_rtc_ioctl, + .unlocked_ioctl = efi_rtc_ioctl, .open = efi_rtc_open, .release = efi_rtc_close, }; -static struct miscdevice efi_rtc_dev= -{ +static struct miscdevice efi_rtc_dev= { EFI_RTC_MINOR, "efirtc", &efi_rtc_fops diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c index fb0a85a..b3f5dbc 100644 --- a/drivers/char/hpet.c +++ b/drivers/char/hpet.c @@ -623,6 +623,7 @@ static inline int hpet_tpcheck(struct hpet_task *tp) return -ENXIO; } +#if 0 int hpet_unregister(struct hpet_task *tp) { struct hpet_dev *devp; @@ -652,6 +653,7 @@ int hpet_unregister(struct hpet_task *tp) return 0; } +#endif /* 0 */ static ctl_table hpet_table[] = { { diff --git a/drivers/char/hvc_console.c b/drivers/char/hvc_console.c index 2f9759d..02aac10 100644 --- a/drivers/char/hvc_console.c +++ b/drivers/char/hvc_console.c @@ -27,7 +27,6 @@ #include <linux/init.h> #include <linux/kbd_kern.h> #include <linux/kernel.h> -#include <linux/kref.h> #include <linux/kthread.h> #include <linux/list.h> #include <linux/module.h> @@ -75,23 +74,6 @@ static int hvc_init(void); static int sysrq_pressed; #endif -struct hvc_struct { - spinlock_t lock; - int index; - struct tty_struct *tty; - unsigned int count; - int do_wakeup; - char *outbuf; - int outbuf_size; - int n_outbuf; - uint32_t vtermno; - struct hv_ops *ops; - int irq_requested; - int irq; - struct list_head next; - struct kref kref; /* ref count & hvc_struct lifetime */ -}; - /* dynamic list of hvc_struct instances */ static LIST_HEAD(hvc_structs); @@ -298,27 +280,15 @@ int hvc_instantiate(uint32_t vtermno, int index, struct hv_ops *ops) return 0; } +EXPORT_SYMBOL_GPL(hvc_instantiate); /* Wake the sleeping khvcd */ -static void hvc_kick(void) +void hvc_kick(void) { hvc_kicked = 1; wake_up_process(hvc_task); } - -static int hvc_poll(struct hvc_struct *hp); - -/* - * NOTE: This API isn't used if the console adapter doesn't support interrupts. - * In this case the console is poll driven. - */ -static irqreturn_t hvc_handle_interrupt(int irq, void *dev_instance) -{ - /* if hvc_poll request a repoll, then kick the hvcd thread */ - if (hvc_poll(dev_instance)) - hvc_kick(); - return IRQ_HANDLED; -} +EXPORT_SYMBOL_GPL(hvc_kick); static void hvc_unthrottle(struct tty_struct *tty) { @@ -333,7 +303,6 @@ static int hvc_open(struct tty_struct *tty, struct file * filp) { struct hvc_struct *hp; unsigned long flags; - int irq = 0; int rc = 0; /* Auto increments kref reference if found. */ @@ -352,18 +321,15 @@ static int hvc_open(struct tty_struct *tty, struct file * filp) tty->low_latency = 1; /* Makes flushes to ldisc synchronous. */ hp->tty = tty; - /* Save for request_irq outside of spin_lock. */ - irq = hp->irq; - if (irq) - hp->irq_requested = 1; + + if (hp->ops->notifier_add) + rc = hp->ops->notifier_add(hp, hp->data); spin_unlock_irqrestore(&hp->lock, flags); - /* check error, fallback to non-irq */ - if (irq) - rc = request_irq(irq, hvc_handle_interrupt, IRQF_DISABLED, "hvc_console", hp); + /* - * If the request_irq() fails and we return an error. The tty layer + * If the notifier fails we return an error. The tty layer * will call hvc_close() after a failed open but we don't want to clean * up there so we'll clean up here and clear out the previously set * tty fields and return the kref reference. @@ -371,7 +337,6 @@ static int hvc_open(struct tty_struct *tty, struct file * filp) if (rc) { spin_lock_irqsave(&hp->lock, flags); hp->tty = NULL; - hp->irq_requested = 0; spin_unlock_irqrestore(&hp->lock, flags); tty->driver_data = NULL; kref_put(&hp->kref, destroy_hvc_struct); @@ -386,7 +351,6 @@ static int hvc_open(struct tty_struct *tty, struct file * filp) static void hvc_close(struct tty_struct *tty, struct file * filp) { struct hvc_struct *hp; - int irq = 0; unsigned long flags; if (tty_hung_up_p(filp)) @@ -404,9 +368,8 @@ static void hvc_close(struct tty_struct *tty, struct file * filp) spin_lock_irqsave(&hp->lock, flags); if (--hp->count == 0) { - if (hp->irq_requested) - irq = hp->irq; - hp->irq_requested = 0; + if (hp->ops->notifier_del) + hp->ops->notifier_del(hp, hp->data); /* We are done with the tty pointer now. */ hp->tty = NULL; @@ -418,10 +381,6 @@ static void hvc_close(struct tty_struct *tty, struct file * filp) * waking periodically to check chars_in_buffer(). */ tty_wait_until_sent(tty, HVC_CLOSE_WAIT); - - if (irq) - free_irq(irq, hp); - } else { if (hp->count < 0) printk(KERN_ERR "hvc_close %X: oops, count is %d\n", @@ -436,7 +395,6 @@ static void hvc_hangup(struct tty_struct *tty) { struct hvc_struct *hp = tty->driver_data; unsigned long flags; - int irq = 0; int temp_open_count; if (!hp) @@ -458,13 +416,12 @@ static void hvc_hangup(struct tty_struct *tty) hp->count = 0; hp->n_outbuf = 0; hp->tty = NULL; - if (hp->irq_requested) - /* Saved for use outside of spin_lock. */ - irq = hp->irq; - hp->irq_requested = 0; + + if (hp->ops->notifier_del) + hp->ops->notifier_del(hp, hp->data); + spin_unlock_irqrestore(&hp->lock, flags); - if (irq) - free_irq(irq, hp); + while(temp_open_count) { --temp_open_count; kref_put(&hp->kref, destroy_hvc_struct); @@ -575,7 +532,7 @@ static u32 timeout = MIN_TIMEOUT; #define HVC_POLL_READ 0x00000001 #define HVC_POLL_WRITE 0x00000002 -static int hvc_poll(struct hvc_struct *hp) +int hvc_poll(struct hvc_struct *hp) { struct tty_struct *tty; int i, n, poll_mask = 0; @@ -602,10 +559,10 @@ static int hvc_poll(struct hvc_struct *hp) if (test_bit(TTY_THROTTLED, &tty->flags)) goto throttled; - /* If we aren't interrupt driven and aren't throttled, we always + /* If we aren't notifier driven and aren't throttled, we always * request a reschedule */ - if (hp->irq == 0) + if (!hp->irq_requested) poll_mask |= HVC_POLL_READ; /* Read data if any */ @@ -674,6 +631,7 @@ static int hvc_poll(struct hvc_struct *hp) return poll_mask; } +EXPORT_SYMBOL_GPL(hvc_poll); /* * This kthread is either polling or interrupt driven. This is determined by @@ -733,7 +691,7 @@ static const struct tty_operations hvc_ops = { .chars_in_buffer = hvc_chars_in_buffer, }; -struct hvc_struct __devinit *hvc_alloc(uint32_t vtermno, int irq, +struct hvc_struct __devinit *hvc_alloc(uint32_t vtermno, int data, struct hv_ops *ops, int outbuf_size) { struct hvc_struct *hp; @@ -754,7 +712,7 @@ struct hvc_struct __devinit *hvc_alloc(uint32_t vtermno, int irq, memset(hp, 0x00, sizeof(*hp)); hp->vtermno = vtermno; - hp->irq = irq; + hp->data = data; hp->ops = ops; hp->outbuf_size = outbuf_size; hp->outbuf = &((char *)hp)[ALIGN(sizeof(*hp), sizeof(long))]; @@ -784,6 +742,7 @@ struct hvc_struct __devinit *hvc_alloc(uint32_t vtermno, int irq, return hp; } +EXPORT_SYMBOL_GPL(hvc_alloc); int __devexit hvc_remove(struct hvc_struct *hp) { diff --git a/drivers/char/hvc_console.h b/drivers/char/hvc_console.h index 42ffb17..d9ce109 100644 --- a/drivers/char/hvc_console.h +++ b/drivers/char/hvc_console.h @@ -26,6 +26,7 @@ #ifndef HVC_CONSOLE_H #define HVC_CONSOLE_H +#include <linux/kref.h> /* * This is the max number of console adapters that can/will be found as @@ -42,24 +43,50 @@ */ #define HVC_ALLOC_TTY_ADAPTERS 8 +struct hvc_struct { + spinlock_t lock; + int index; + struct tty_struct *tty; + unsigned int count; + int do_wakeup; + char *outbuf; + int outbuf_size; + int n_outbuf; + uint32_t vtermno; + struct hv_ops *ops; + int irq_requested; + int data; + struct list_head next; + struct kref kref; /* ref count & hvc_struct lifetime */ +}; /* implemented by a low level driver */ struct hv_ops { int (*get_chars)(uint32_t vtermno, char *buf, int count); int (*put_chars)(uint32_t vtermno, const char *buf, int count); -}; -struct hvc_struct; + /* Callbacks for notification. Called in open and close */ + int (*notifier_add)(struct hvc_struct *hp, int irq); + void (*notifier_del)(struct hvc_struct *hp, int irq); +}; /* Register a vterm and a slot index for use as a console (console_init) */ extern int hvc_instantiate(uint32_t vtermno, int index, struct hv_ops *ops); /* register a vterm for hvc tty operation (module_init or hotplug add) */ -extern struct hvc_struct * __devinit hvc_alloc(uint32_t vtermno, int irq, +extern struct hvc_struct * __devinit hvc_alloc(uint32_t vtermno, int data, struct hv_ops *ops, int outbuf_size); -/* remove a vterm from hvc tty operation (modele_exit or hotplug remove) */ +/* remove a vterm from hvc tty operation (module_exit or hotplug remove) */ extern int __devexit hvc_remove(struct hvc_struct *hp); +/* data available */ +int hvc_poll(struct hvc_struct *hp); +void hvc_kick(void); + +/* default notifier for irq based notification */ +extern int notifier_add_irq(struct hvc_struct *hp, int data); +extern void notifier_del_irq(struct hvc_struct *hp, int data); + #if defined(CONFIG_XMON) && defined(CONFIG_SMP) #include <asm/xmon.h> diff --git a/drivers/char/hvc_irq.c b/drivers/char/hvc_irq.c new file mode 100644 index 0000000..73a59cd --- /dev/null +++ b/drivers/char/hvc_irq.c @@ -0,0 +1,44 @@ +/* + * Copyright IBM Corp. 2001,2008 + * + * This file contains the IRQ specific code for hvc_console + * + */ + +#include <linux/interrupt.h> + +#include "hvc_console.h" + +static irqreturn_t hvc_handle_interrupt(int irq, void *dev_instance) +{ + /* if hvc_poll request a repoll, then kick the hvcd thread */ + if (hvc_poll(dev_instance)) + hvc_kick(); + return IRQ_HANDLED; +} + +/* + * For IRQ based systems these callbacks can be used + */ +int notifier_add_irq(struct hvc_struct *hp, int irq) +{ + int rc; + + if (!irq) { + hp->irq_requested = 0; + return 0; + } + rc = request_irq(irq, hvc_handle_interrupt, IRQF_DISABLED, + "hvc_console", hp); + if (!rc) + hp->irq_requested = 1; + return rc; +} + +void notifier_del_irq(struct hvc_struct *hp, int irq) +{ + if (!irq) + return; + free_irq(irq, hp); + hp->irq_requested = 0; +} diff --git a/drivers/char/hvc_iseries.c b/drivers/char/hvc_iseries.c index a08f8f9..b71c610 100644 --- a/drivers/char/hvc_iseries.c +++ b/drivers/char/hvc_iseries.c @@ -200,6 +200,8 @@ done: static struct hv_ops hvc_get_put_ops = { .get_chars = get_chars, .put_chars = put_chars, + .notifier_add = notifier_add_irq, + .notifier_del = notifier_del_irq, }; static int __devinit hvc_vio_probe(struct vio_dev *vdev, diff --git a/drivers/char/hvc_vio.c b/drivers/char/hvc_vio.c index 79711aa..93f3840 100644 --- a/drivers/char/hvc_vio.c +++ b/drivers/char/hvc_vio.c @@ -80,6 +80,8 @@ static int filtered_get_chars(uint32_t vtermno, char *buf, int count) static struct hv_ops hvc_get_put_ops = { .get_chars = filtered_get_chars, .put_chars = hvc_put_chars, + .notifier_add = notifier_add_irq, + .notifier_del = notifier_del_irq, }; static int __devinit hvc_vio_probe(struct vio_dev *vdev, diff --git a/drivers/char/hvc_xen.c b/drivers/char/hvc_xen.c index db2ae42..6b70aa6 100644 --- a/drivers/char/hvc_xen.c +++ b/drivers/char/hvc_xen.c @@ -100,6 +100,8 @@ static int read_console(uint32_t vtermno, char *buf, int len) static struct hv_ops hvc_ops = { .get_chars = read_console, .put_chars = write_console, + .notifier_add = notifier_add_irq, + .notifier_del = notifier_del_irq, }; static int __init xen_init(void) diff --git a/drivers/char/ip2/ip2main.c b/drivers/char/ip2/ip2main.c index 9cb48fc..689f9dc 100644 --- a/drivers/char/ip2/ip2main.c +++ b/drivers/char/ip2/ip2main.c @@ -203,7 +203,7 @@ static int set_serial_info(i2ChanStrPtr, struct serial_struct __user *); static ssize_t ip2_ipl_read(struct file *, char __user *, size_t, loff_t *); static ssize_t ip2_ipl_write(struct file *, const char __user *, size_t, loff_t *); -static int ip2_ipl_ioctl(struct inode *, struct file *, UINT, ULONG); +static long ip2_ipl_ioctl(struct file *, UINT, ULONG); static int ip2_ipl_open(struct inode *, struct file *); static int DumpTraceBuffer(char __user *, int); @@ -236,7 +236,7 @@ static const struct file_operations ip2_ipl = { .owner = THIS_MODULE, .read = ip2_ipl_read, .write = ip2_ipl_write, - .ioctl = ip2_ipl_ioctl, + .unlocked_ioctl = ip2_ipl_ioctl, .open = ip2_ipl_open, }; @@ -2845,10 +2845,10 @@ ip2_ipl_write(struct file *pFile, const char __user *pData, size_t count, loff_t /* */ /* */ /******************************************************************************/ -static int -ip2_ipl_ioctl ( struct inode *pInode, struct file *pFile, UINT cmd, ULONG arg ) +static long +ip2_ipl_ioctl (struct file *pFile, UINT cmd, ULONG arg ) { - unsigned int iplminor = iminor(pInode); + unsigned int iplminor = iminor(pFile->f_path.dentry->d_inode); int rc = 0; void __user *argp = (void __user *)arg; ULONG __user *pIndex = argp; @@ -2859,6 +2859,8 @@ ip2_ipl_ioctl ( struct inode *pInode, struct file *pFile, UINT cmd, ULONG arg ) printk (KERN_DEBUG "IP2IPL: ioctl cmd %d, arg %ld\n", cmd, arg ); #endif + lock_kernel(); + switch ( iplminor ) { case 0: // IPL device rc = -EINVAL; @@ -2919,6 +2921,7 @@ ip2_ipl_ioctl ( struct inode *pInode, struct file *pFile, UINT cmd, ULONG arg ) rc = -ENODEV; break; } + unlock_kernel(); return rc; } diff --git a/drivers/char/lcd.c b/drivers/char/lcd.c deleted file mode 100644 index 1c29b20..0000000 --- a/drivers/char/lcd.c +++ /dev/null @@ -1,516 +0,0 @@ -/* - * LCD, LED and Button interface for Cobalt - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Copyright (C) 1996, 1997 by Andrew Bose - * - * Linux kernel version history: - * March 2001: Ported from 2.0.34 by Liam Davies - * - */ -#include <linux/types.h> -#include <linux/errno.h> -#include <linux/miscdevice.h> -#include <linux/slab.h> -#include <linux/ioport.h> -#include <linux/fcntl.h> -#include <linux/mc146818rtc.h> -#include <linux/netdevice.h> -#include <linux/sched.h> -#include <linux/smp_lock.h> -#include <linux/delay.h> - -#include <asm/io.h> -#include <asm/uaccess.h> -#include <asm/system.h> - -#include "lcd.h" - -static int lcd_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg); - -static unsigned int lcd_present = 1; - -/* used in arch/mips/cobalt/reset.c */ -int led_state = 0; - -#if defined(CONFIG_TULIP) && 0 - -#define MAX_INTERFACES 8 -static linkcheck_func_t linkcheck_callbacks[MAX_INTERFACES]; -static void *linkcheck_cookies[MAX_INTERFACES]; - -int lcd_register_linkcheck_func(int iface_num, void *func, void *cookie) -{ - if (iface_num < 0 || - iface_num >= MAX_INTERFACES || - linkcheck_callbacks[iface_num] != NULL) - return -1; - linkcheck_callbacks[iface_num] = (linkcheck_func_t) func; - linkcheck_cookies[iface_num] = cookie; - return 0; -} -#endif - -static int lcd_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg) -{ - struct lcd_display button_display; - unsigned long address, a; - - switch (cmd) { - case LCD_On: - udelay(150); - BusyCheck(); - LCDWriteInst(0x0F); - break; - - case LCD_Off: - udelay(150); - BusyCheck(); - LCDWriteInst(0x08); - break; - - case LCD_Reset: - udelay(150); - LCDWriteInst(0x3F); - udelay(150); - LCDWriteInst(0x3F); - udelay(150); - LCDWriteInst(0x3F); - udelay(150); - LCDWriteInst(0x3F); - udelay(150); - LCDWriteInst(0x01); - udelay(150); - LCDWriteInst(0x06); - break; - - case LCD_Clear: - udelay(150); - BusyCheck(); - LCDWriteInst(0x01); - break; - - case LCD_Cursor_Left: - udelay(150); - BusyCheck(); - LCDWriteInst(0x10); - break; - - case LCD_Cursor_Right: - udelay(150); - BusyCheck(); - LCDWriteInst(0x14); - break; - - case LCD_Cursor_Off: - udelay(150); - BusyCheck(); - LCDWriteInst(0x0C); - break; - - case LCD_Cursor_On: - udelay(150); - BusyCheck(); - LCDWriteInst(0x0F); - break; - - case LCD_Blink_Off: - udelay(150); - BusyCheck(); - LCDWriteInst(0x0E); - break; - - case LCD_Get_Cursor_Pos:{ - struct lcd_display display; - - udelay(150); - BusyCheck(); - display.cursor_address = (LCDReadInst); - display.cursor_address = - (display.cursor_address & 0x07F); - if (copy_to_user - ((struct lcd_display *) arg, &display, - sizeof(struct lcd_display))) - return -EFAULT; - - break; - } - - - case LCD_Set_Cursor_Pos:{ - struct lcd_display display; - - if (copy_from_user - (&display, (struct lcd_display *) arg, - sizeof(struct lcd_display))) - return -EFAULT; - - a = (display.cursor_address | kLCD_Addr); - - udelay(150); - BusyCheck(); - LCDWriteInst(a); - - break; - } - - case LCD_Get_Cursor:{ - struct lcd_display display; - - udelay(150); - BusyCheck(); - display.character = LCDReadData; - - if (copy_to_user - ((struct lcd_display *) arg, &display, - sizeof(struct lcd_display))) - return -EFAULT; - udelay(150); - BusyCheck(); - LCDWriteInst(0x10); - - break; - } - - case LCD_Set_Cursor:{ - struct lcd_display display; - - if (copy_from_user - (&display, (struct lcd_display *) arg, - sizeof(struct lcd_display))) - return -EFAULT; - - udelay(150); - BusyCheck(); - LCDWriteData(display.character); - udelay(150); - BusyCheck(); - LCDWriteInst(0x10); - - break; - } - - - case LCD_Disp_Left: - udelay(150); - BusyCheck(); - LCDWriteInst(0x18); - break; - - case LCD_Disp_Right: - udelay(150); - BusyCheck(); - LCDWriteInst(0x1C); - break; - - case LCD_Home: - udelay(150); - BusyCheck(); - LCDWriteInst(0x02); - break; - - case LCD_Write:{ - struct lcd_display display; - unsigned int index; - - - if (copy_from_user - (&display, (struct lcd_display *) arg, - sizeof(struct lcd_display))) - return -EFAULT; - - udelay(150); - BusyCheck(); - LCDWriteInst(0x80); - udelay(150); - BusyCheck(); - - for (index = 0; index < (display.size1); index++) { - udelay(150); - BusyCheck(); - LCDWriteData(display.line1[index]); - BusyCheck(); - } - - udelay(150); - BusyCheck(); - LCDWriteInst(0xC0); - udelay(150); - BusyCheck(); - for (index = 0; index < (display.size2); index++) { - udelay(150); - BusyCheck(); - LCDWriteData(display.line2[index]); - } - - break; - } - - case LCD_Read:{ - struct lcd_display display; - - BusyCheck(); - for (address = kDD_R00; address <= kDD_R01; - address++) { - a = (address | kLCD_Addr); - - udelay(150); - BusyCheck(); - LCDWriteInst(a); - udelay(150); - BusyCheck(); - display.line1[address] = LCDReadData; - } - - display.line1[0x27] = '\0'; - - for (address = kDD_R10; address <= kDD_R11; - address++) { - a = (address | kLCD_Addr); - - udelay(150); - BusyCheck(); - LCDWriteInst(a); - - udelay(150); - BusyCheck(); - display.line2[address - 0x40] = - LCDReadData; - } - - display.line2[0x27] = '\0'; - - if (copy_to_user - ((struct lcd_display *) arg, &display, - sizeof(struct lcd_display))) - return -EFAULT; - break; - } - -// set all GPIO leds to led_display.leds - - case LED_Set:{ - struct lcd_display led_display; - - - if (copy_from_user - (&led_display, (struct lcd_display *) arg, - sizeof(struct lcd_display))) - return -EFAULT; - - led_state = led_display.leds; - LEDSet(led_state); - - break; - } - - -// set only bit led_display.leds - - case LED_Bit_Set:{ - unsigned int i; - int bit = 1; - struct lcd_display led_display; - - - if (copy_from_user - (&led_display, (struct lcd_display *) arg, - sizeof(struct lcd_display))) - return -EFAULT; - - for (i = 0; i < (int) led_display.leds; i++) { - bit = 2 * bit; - } - - led_state = led_state | bit; - LEDSet(led_state); - break; - } - -// clear only bit led_display.leds - - case LED_Bit_Clear:{ - unsigned int i; - int bit = 1; - struct lcd_display led_display; - - - if (copy_from_user - (&led_display, (struct lcd_display *) arg, - sizeof(struct lcd_display))) - return -EFAULT; - - for (i = 0; i < (int) led_display.leds; i++) { - bit = 2 * bit; - } - - led_state = led_state & ~bit; - LEDSet(led_state); - break; - } - - - case BUTTON_Read:{ - button_display.buttons = GPIRead; - if (copy_to_user - ((struct lcd_display *) arg, &button_display, - sizeof(struct lcd_display))) - return -EFAULT; - break; - } - - case LINK_Check:{ - button_display.buttons = - *((volatile unsigned long *) (0xB0100060)); - if (copy_to_user - ((struct lcd_display *) arg, &button_display, - sizeof(struct lcd_display))) - return -EFAULT; - break; - } - - case LINK_Check_2:{ - int iface_num; - - /* panel-utils should pass in the desired interface status is wanted for - * in "buttons" of the structure. We will set this to non-zero if the - * link is in fact up for the requested interface. --DaveM - */ - if (copy_from_user - (&button_display, (struct lcd_display *) arg, - sizeof(button_display))) - return -EFAULT; - iface_num = button_display.buttons; -#if defined(CONFIG_TULIP) && 0 - if (iface_num >= 0 && - iface_num < MAX_INTERFACES && - linkcheck_callbacks[iface_num] != NULL) { - button_display.buttons = - linkcheck_callbacks[iface_num] - (linkcheck_cookies[iface_num]); - } else -#endif - button_display.buttons = 0; - - if (__copy_to_user - ((struct lcd_display *) arg, &button_display, - sizeof(struct lcd_display))) - return -EFAULT; - break; - } - - default: - return -EINVAL; - - } - - return 0; - -} - -static int lcd_open(struct inode *inode, struct file *file) -{ - cycle_kernel_lock(); - - if (!lcd_present) - return -ENXIO; - else - return 0; -} - -/* Only RESET or NEXT counts as button pressed */ - -static inline int button_pressed(void) -{ - unsigned long buttons = GPIRead; - - if ((buttons == BUTTON_Next) || (buttons == BUTTON_Next_B) - || (buttons == BUTTON_Reset_B)) - return buttons; - return 0; -} - -/* LED daemon sits on this and we wake him up once a key is pressed. */ - -static int lcd_waiters = 0; - -static ssize_t lcd_read(struct file *file, char *buf, - size_t count, loff_t *ofs) -{ - long buttons_now; - - if (lcd_waiters > 0) - return -EINVAL; - - lcd_waiters++; - while (((buttons_now = (long) button_pressed()) == 0) && - !(signal_pending(current))) { - msleep_interruptible(2000); - } - lcd_waiters--; - - if (signal_pending(current)) - return -ERESTARTSYS; - return buttons_now; -} - -/* - * The various file operations we support. - */ - -static const struct file_operations lcd_fops = { - .read = lcd_read, - .ioctl = lcd_ioctl, - .open = lcd_open, -}; - -static struct miscdevice lcd_dev = { - MISC_DYNAMIC_MINOR, - "lcd", - &lcd_fops -}; - -static int lcd_init(void) -{ - int ret; - unsigned long data; - - pr_info("%s\n", LCD_DRIVER); - ret = misc_register(&lcd_dev); - if (ret) { - printk(KERN_WARNING LCD "Unable to register misc device.\n"); - return ret; - } - - /* Check region? Naaah! Just snarf it up. */ -/* request_region(RTC_PORT(0), RTC_IO_EXTENT, "lcd");*/ - - udelay(150); - data = LCDReadData; - if ((data & 0x000000FF) == (0x00)) { - lcd_present = 0; - pr_info(LCD "LCD Not Present\n"); - } else { - lcd_present = 1; - WRITE_GAL(kGal_DevBank2PReg, kGal_DevBank2Cfg); - WRITE_GAL(kGal_DevBank3PReg, kGal_DevBank3Cfg); - } - - return 0; -} - -static void __exit lcd_exit(void) -{ - misc_deregister(&lcd_dev); -} - -module_init(lcd_init); -module_exit(lcd_exit); - -MODULE_AUTHOR("Andrew Bose"); -MODULE_LICENSE("GPL"); diff --git a/drivers/char/lcd.h b/drivers/char/lcd.h deleted file mode 100644 index 290b3ff..0000000 --- a/drivers/char/lcd.h +++ /dev/null @@ -1,154 +0,0 @@ -/* - * LED, LCD and Button panel driver for Cobalt - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Copyright (C) 1996, 1997 by Andrew Bose - * - * Linux kernel version history: - * March 2001: Ported from 2.0.34 by Liam Davies - * - */ - -// function headers - -#define LCD_CHARS_PER_LINE 40 -#define MAX_IDLE_TIME 120 - -struct lcd_display { - unsigned buttons; - int size1; - int size2; - unsigned char line1[LCD_CHARS_PER_LINE]; - unsigned char line2[LCD_CHARS_PER_LINE]; - unsigned char cursor_address; - unsigned char character; - unsigned char leds; - unsigned char *RomImage; -}; - - - -#define LCD_DRIVER "Cobalt LCD Driver v2.10" - -#define LCD "lcd: " - -#define kLCD_IR 0x0F000000 -#define kLCD_DR 0x0F000010 -#define kGPI 0x0D000000 -#define kLED 0x0C000000 - -#define kDD_R00 0x00 -#define kDD_R01 0x27 -#define kDD_R10 0x40 -#define kDD_R11 0x67 - -#define kLCD_Addr 0x00000080 - -#define LCDTimeoutValue 0xfff - - -// Macros - -#define LCDWriteData(x) outl((x << 24), kLCD_DR) -#define LCDWriteInst(x) outl((x << 24), kLCD_IR) - -#define LCDReadData (inl(kLCD_DR) >> 24) -#define LCDReadInst (inl(kLCD_IR) >> 24) - -#define GPIRead (inl(kGPI) >> 24) - -#define LEDSet(x) outb((char)x, kLED) - -#define WRITE_GAL(x,y) outl(y, 0x04000000 | (x)) -#define BusyCheck() while ((LCDReadInst & 0x80) == 0x80) - - - -/* - * Function command codes for io_ctl. - */ -#define LCD_On 1 -#define LCD_Off 2 -#define LCD_Clear 3 -#define LCD_Reset 4 -#define LCD_Cursor_Left 5 -#define LCD_Cursor_Right 6 -#define LCD_Disp_Left 7 -#define LCD_Disp_Right 8 -#define LCD_Get_Cursor 9 -#define LCD_Set_Cursor 10 -#define LCD_Home 11 -#define LCD_Read 12 -#define LCD_Write 13 -#define LCD_Cursor_Off 14 -#define LCD_Cursor_On 15 -#define LCD_Get_Cursor_Pos 16 -#define LCD_Set_Cursor_Pos 17 -#define LCD_Blink_Off 18 - -#define LED_Set 40 -#define LED_Bit_Set 41 -#define LED_Bit_Clear 42 - - -// Button defs -#define BUTTON_Read 50 - - -// Ethernet LINK check hackaroo -#define LINK_Check 90 -#define LINK_Check_2 91 - -// Button patterns _B - single layer lcd boards - -#define BUTTON_NONE 0x3F -#define BUTTON_NONE_B 0xFE - -#define BUTTON_Left 0x3B -#define BUTTON_Left_B 0xFA - -#define BUTTON_Right 0x37 -#define BUTTON_Right_B 0xDE - -#define BUTTON_Up 0x2F -#define BUTTON_Up_B 0xF6 - -#define BUTTON_Down 0x1F -#define BUTTON_Down_B 0xEE - -#define BUTTON_Next 0x3D -#define BUTTON_Next_B 0x7E - -#define BUTTON_Enter 0x3E -#define BUTTON_Enter_B 0xBE - -#define BUTTON_Reset_B 0xFC - - -// debounce constants - -#define BUTTON_SENSE 160000 -#define BUTTON_DEBOUNCE 5000 - - -// Galileo register stuff - -#define kGal_DevBank2Cfg 0x1466DB33 -#define kGal_DevBank2PReg 0x464 -#define kGal_DevBank3Cfg 0x146FDFFB -#define kGal_DevBank3PReg 0x468 - -// Network - -#define kIPADDR 1 -#define kNETMASK 2 -#define kGATEWAY 3 -#define kDNS 4 - -#define kClassA 5 -#define kClassB 6 -#define kClassC 7 - diff --git a/drivers/char/mem.c b/drivers/char/mem.c index c2dba82..672b08e 100644 --- a/drivers/char/mem.c +++ b/drivers/char/mem.c @@ -327,7 +327,10 @@ static void mmap_mem_close(struct vm_area_struct *vma) static struct vm_operations_struct mmap_mem_ops = { .open = mmap_mem_open, - .close = mmap_mem_close + .close = mmap_mem_close, +#ifdef CONFIG_HAVE_IOREMAP_PROT + .access = generic_access_phys +#endif }; static int mmap_mem(struct file * file, struct vm_area_struct * vma) diff --git a/drivers/char/mspec.c b/drivers/char/mspec.c index fe2a95b..30f095a 100644 --- a/drivers/char/mspec.c +++ b/drivers/char/mspec.c @@ -193,25 +193,23 @@ mspec_close(struct vm_area_struct *vma) } /* - * mspec_nopfn + * mspec_fault * * Creates a mspec page and maps it to user space. */ -static unsigned long -mspec_nopfn(struct vm_area_struct *vma, unsigned long address) +static int +mspec_fault(struct vm_area_struct *vma, struct vm_fault *vmf) { unsigned long paddr, maddr; unsigned long pfn; - int index; + pgoff_t index = vmf->pgoff; struct vma_data *vdata = vma->vm_private_data; - BUG_ON(address < vdata->vm_start || address >= vdata->vm_end); - index = (address - vdata->vm_start) >> PAGE_SHIFT; maddr = (volatile unsigned long) vdata->maddr[index]; if (maddr == 0) { maddr = uncached_alloc_page(numa_node_id(), 1); if (maddr == 0) - return NOPFN_OOM; + return VM_FAULT_OOM; spin_lock(&vdata->lock); if (vdata->maddr[index] == 0) { @@ -231,13 +229,20 @@ mspec_nopfn(struct vm_area_struct *vma, unsigned long address) pfn = paddr >> PAGE_SHIFT; - return pfn; + /* + * vm_insert_pfn can fail with -EBUSY, but in that case it will + * be because another thread has installed the pte first, so it + * is no problem. + */ + vm_insert_pfn(vma, (unsigned long)vmf->virtual_address, pfn); + + return VM_FAULT_NOPAGE; } static struct vm_operations_struct mspec_vm_ops = { .open = mspec_open, .close = mspec_close, - .nopfn = mspec_nopfn + .fault = mspec_fault, }; /* diff --git a/drivers/char/mwave/mwavedd.c b/drivers/char/mwave/mwavedd.c index 50243fc..4f8d67f 100644 --- a/drivers/char/mwave/mwavedd.c +++ b/drivers/char/mwave/mwavedd.c @@ -86,8 +86,8 @@ module_param(mwave_uart_io, int, 0); static int mwave_open(struct inode *inode, struct file *file); static int mwave_close(struct inode *inode, struct file *file); -static int mwave_ioctl(struct inode *inode, struct file *filp, - unsigned int iocmd, unsigned long ioarg); +static long mwave_ioctl(struct file *filp, unsigned int iocmd, + unsigned long ioarg); MWAVE_DEVICE_DATA mwave_s_mdd; @@ -119,16 +119,16 @@ static int mwave_close(struct inode *inode, struct file *file) return retval; } -static int mwave_ioctl(struct inode *inode, struct file *file, - unsigned int iocmd, unsigned long ioarg) +static long mwave_ioctl(struct file *file, unsigned int iocmd, + unsigned long ioarg) { unsigned int retval = 0; pMWAVE_DEVICE_DATA pDrvData = &mwave_s_mdd; void __user *arg = (void __user *)ioarg; - PRINTK_5(TRACE_MWAVE, - "mwavedd::mwave_ioctl, entry inode %p file %p cmd %x arg %x\n", - inode, file, iocmd, (int) ioarg); + PRINTK_4(TRACE_MWAVE, + "mwavedd::mwave_ioctl, entry file %p cmd %x arg %x\n", + file, iocmd, (int) ioarg); switch (iocmd) { @@ -136,7 +136,9 @@ static int mwave_ioctl(struct inode *inode, struct file *file, PRINTK_1(TRACE_MWAVE, "mwavedd::mwave_ioctl, IOCTL_MW_RESET" " calling tp3780I_ResetDSP\n"); + lock_kernel(); retval = tp3780I_ResetDSP(&pDrvData->rBDData); + unlock_kernel(); PRINTK_2(TRACE_MWAVE, "mwavedd::mwave_ioctl, IOCTL_MW_RESET" " retval %x from tp3780I_ResetDSP\n", @@ -147,7 +149,9 @@ static int mwave_ioctl(struct inode *inode, struct file *file, PRINTK_1(TRACE_MWAVE, "mwavedd::mwave_ioctl, IOCTL_MW_RUN" " calling tp3780I_StartDSP\n"); + lock_kernel(); retval = tp3780I_StartDSP(&pDrvData->rBDData); + unlock_kernel(); PRINTK_2(TRACE_MWAVE, "mwavedd::mwave_ioctl, IOCTL_MW_RUN" " retval %x from tp3780I_StartDSP\n", @@ -161,8 +165,10 @@ static int mwave_ioctl(struct inode *inode, struct file *file, "mwavedd::mwave_ioctl," " IOCTL_MW_DSP_ABILITIES calling" " tp3780I_QueryAbilities\n"); + lock_kernel(); retval = tp3780I_QueryAbilities(&pDrvData->rBDData, &rAbilities); + unlock_kernel(); PRINTK_2(TRACE_MWAVE, "mwavedd::mwave_ioctl, IOCTL_MW_DSP_ABILITIES" " retval %x from tp3780I_QueryAbilities\n", @@ -193,11 +199,13 @@ static int mwave_ioctl(struct inode *inode, struct file *file, "mwavedd::mwave_ioctl IOCTL_MW_READ_DATA," " size %lx, ioarg %lx pusBuffer %p\n", rReadData.ulDataLength, ioarg, pusBuffer); + lock_kernel(); retval = tp3780I_ReadWriteDspDStore(&pDrvData->rBDData, iocmd, pusBuffer, rReadData.ulDataLength, rReadData.usDspAddress); + unlock_kernel(); } break; @@ -215,10 +223,12 @@ static int mwave_ioctl(struct inode *inode, struct file *file, " size %lx, ioarg %lx pusBuffer %p\n", rReadData.ulDataLength / 2, ioarg, pusBuffer); + lock_kernel(); retval = tp3780I_ReadWriteDspDStore(&pDrvData->rBDData, iocmd, pusBuffer, rReadData.ulDataLength / 2, rReadData.usDspAddress); + unlock_kernel(); } break; @@ -236,10 +246,12 @@ static int mwave_ioctl(struct inode *inode, struct file *file, " size %lx, ioarg %lx pusBuffer %p\n", rWriteData.ulDataLength, ioarg, pusBuffer); + lock_kernel(); retval = tp3780I_ReadWriteDspDStore(&pDrvData->rBDData, iocmd, pusBuffer, rWriteData.ulDataLength, rWriteData.usDspAddress); + unlock_kernel(); } break; @@ -257,10 +269,12 @@ static int mwave_ioctl(struct inode *inode, struct file *file, " size %lx, ioarg %lx pusBuffer %p\n", rWriteData.ulDataLength, ioarg, pusBuffer); + lock_kernel(); retval = tp3780I_ReadWriteDspIStore(&pDrvData->rBDData, iocmd, pusBuffer, rWriteData.ulDataLength, rWriteData.usDspAddress); + unlock_kernel(); } break; @@ -281,8 +295,10 @@ static int mwave_ioctl(struct inode *inode, struct file *file, ipcnum); return -EINVAL; } + lock_kernel(); pDrvData->IPCs[ipcnum].bIsHere = FALSE; pDrvData->IPCs[ipcnum].bIsEnabled = TRUE; + unlock_kernel(); PRINTK_2(TRACE_MWAVE, "mwavedd::mwave_ioctl IOCTL_MW_REGISTER_IPC" @@ -307,6 +323,7 @@ static int mwave_ioctl(struct inode *inode, struct file *file, return -EINVAL; } + lock_kernel(); if (pDrvData->IPCs[ipcnum].bIsEnabled == TRUE) { DECLARE_WAITQUEUE(wait, current); @@ -347,6 +364,7 @@ static int mwave_ioctl(struct inode *inode, struct file *file, " processing\n", ipcnum); } + unlock_kernel(); } break; @@ -365,19 +383,18 @@ static int mwave_ioctl(struct inode *inode, struct file *file, ipcnum); return -EINVAL; } + lock_kernel(); if (pDrvData->IPCs[ipcnum].bIsEnabled == TRUE) { pDrvData->IPCs[ipcnum].bIsEnabled = FALSE; if (pDrvData->IPCs[ipcnum].bIsHere == TRUE) { wake_up_interruptible(&pDrvData->IPCs[ipcnum].ipc_wait_queue); } } + unlock_kernel(); } break; default: - PRINTK_ERROR(KERN_ERR_MWAVE "mwavedd::mwave_ioctl:" - " Error: Unrecognized iocmd %x\n", - iocmd); return -ENOTTY; break; } /* switch */ @@ -460,7 +477,7 @@ static const struct file_operations mwave_fops = { .owner = THIS_MODULE, .read = mwave_read, .write = mwave_write, - .ioctl = mwave_ioctl, + .unlocked_ioctl = mwave_ioctl, .open = mwave_open, .release = mwave_close }; diff --git a/drivers/char/mwave/mwavedd.h b/drivers/char/mwave/mwavedd.h index 8eca61e..7e0d530 100644 --- a/drivers/char/mwave/mwavedd.h +++ b/drivers/char/mwave/mwavedd.h @@ -147,4 +147,6 @@ typedef struct _MWAVE_DEVICE_DATA { } MWAVE_DEVICE_DATA, *pMWAVE_DEVICE_DATA; +extern MWAVE_DEVICE_DATA mwave_s_mdd; + #endif diff --git a/drivers/char/mwave/tp3780i.c b/drivers/char/mwave/tp3780i.c index f282976..c689697 100644 --- a/drivers/char/mwave/tp3780i.c +++ b/drivers/char/mwave/tp3780i.c @@ -57,8 +57,6 @@ #include "3780i.h" #include "mwavepub.h" -extern MWAVE_DEVICE_DATA mwave_s_mdd; - static unsigned short s_ausThinkpadIrqToField[16] = { 0xFFFF, 0xFFFF, 0xFFFF, 0x0001, 0x0002, 0x0003, 0xFFFF, 0x0004, 0xFFFF, 0xFFFF, 0x0005, 0x0006, 0xFFFF, 0xFFFF, 0xFFFF, 0x0007 }; diff --git a/drivers/char/mxser.c b/drivers/char/mxser.c index 4c756bb..e30575e 100644 --- a/drivers/char/mxser.c +++ b/drivers/char/mxser.c @@ -16,7 +16,6 @@ * Fed through a cleanup, indent and remove of non 2.6 code by Alan Cox * <alan@redhat.com>. The original 1.8 code is available on www.moxa.com. * - Fixed x86_64 cleanness - * - Fixed sleep with spinlock held in mxser_send_break */ #include <linux/module.h> @@ -49,18 +48,12 @@ #define MXSER_VERSION "2.0.4" /* 1.12 */ #define MXSERMAJOR 174 -#define MXSERCUMAJOR 175 #define MXSER_BOARDS 4 /* Max. boards */ #define MXSER_PORTS_PER_BOARD 8 /* Max. ports per board */ #define MXSER_PORTS (MXSER_BOARDS * MXSER_PORTS_PER_BOARD) #define MXSER_ISR_PASS_LIMIT 100 -#define MXSER_ERR_IOADDR -1 -#define MXSER_ERR_IRQ -2 -#define MXSER_ERR_IRQ_CONFLIT -3 -#define MXSER_ERR_VECTOR -4 - /*CheckIsMoxaMust return value*/ #define MOXA_OTHER_UART 0x00 #define MOXA_MUST_MU150_HWID 0x01 @@ -179,14 +172,15 @@ static struct pci_device_id mxser_pcibrds[] = { }; MODULE_DEVICE_TABLE(pci, mxser_pcibrds); -static int ioaddr[MXSER_BOARDS] = { 0, 0, 0, 0 }; +static unsigned long ioaddr[MXSER_BOARDS]; static int ttymajor = MXSERMAJOR; /* Variables for insmod */ MODULE_AUTHOR("Casper Yang"); MODULE_DESCRIPTION("MOXA Smartio/Industio Family Multiport Board Device Driver"); -module_param_array(ioaddr, int, NULL, 0); +module_param_array(ioaddr, ulong, NULL, 0); +MODULE_PARM_DESC(ioaddr, "ISA io addresses to look for a moxa board"); module_param(ttymajor, int, 0); MODULE_LICENSE("GPL"); @@ -196,7 +190,6 @@ struct mxser_log { unsigned long txcnt[MXSER_PORTS]; }; - struct mxser_mon { unsigned long rxcnt; unsigned long txcnt; @@ -287,19 +280,9 @@ struct mxser_mstatus { int dcd; }; -static struct mxser_mstatus GMStatus[MXSER_PORTS]; - -static int mxserBoardCAP[MXSER_BOARDS] = { - 0, 0, 0, 0 - /* 0x180, 0x280, 0x200, 0x320 */ -}; - static struct mxser_board mxser_boards[MXSER_BOARDS]; static struct tty_driver *mxvar_sdriver; static struct mxser_log mxvar_log; -static int mxvar_diagflag; -static unsigned char mxser_msr[MXSER_PORTS + 1]; -static struct mxser_mon_ext mon_data_ext; static int mxser_set_baud_method[MXSER_PORTS + 1]; static void mxser_enable_must_enchance_mode(unsigned long baseio) @@ -543,6 +526,7 @@ static void process_txrx_fifo(struct mxser_port *info) static unsigned char mxser_get_msr(int baseaddr, int mode, int port) { + static unsigned char mxser_msr[MXSER_PORTS + 1]; unsigned char status = 0; status = inb(baseaddr + UART_MSR); @@ -1319,13 +1303,9 @@ static void mxser_flush_chars(struct tty_struct *tty) struct mxser_port *info = tty->driver_data; unsigned long flags; - if (info->xmit_cnt <= 0 || - tty->stopped || - !info->port.xmit_buf || - (tty->hw_stopped && - (info->type != PORT_16550A) && - (!info->board->chip_flag) - )) + if (info->xmit_cnt <= 0 || tty->stopped || !info->port.xmit_buf || + (tty->hw_stopped && info->type != PORT_16550A && + !info->board->chip_flag)) return; spin_lock_irqsave(&info->slock, flags); @@ -1343,9 +1323,7 @@ static int mxser_write_room(struct tty_struct *tty) int ret; ret = SERIAL_XMIT_SIZE - info->xmit_cnt - 1; - if (ret < 0) - ret = 0; - return ret; + return ret < 0 ? 0 : ret; } static int mxser_chars_in_buffer(struct tty_struct *tty) @@ -1634,6 +1612,8 @@ static int mxser_ioctl_special(unsigned int cmd, void __user *argp) switch (cmd) { case MOXA_GET_MAJOR: + printk(KERN_WARNING "mxser: '%s' uses deprecated ioctl %x, fix " + "your userspace\n", current->comm, cmd); return put_user(ttymajor, (int __user *)argp); case MOXA_CHKPORTENABLE: @@ -1651,62 +1631,60 @@ static int mxser_ioctl_special(unsigned int cmd, void __user *argp) ret = -EFAULT; unlock_kernel(); return ret; - case MOXA_GETMSTATUS: + case MOXA_GETMSTATUS: { + struct mxser_mstatus ms, __user *msu = argp; lock_kernel(); for (i = 0; i < MXSER_BOARDS; i++) for (j = 0; j < MXSER_PORTS_PER_BOARD; j++) { port = &mxser_boards[i].ports[j]; + memset(&ms, 0, sizeof(ms)); - GMStatus[i].ri = 0; - if (!port->ioaddr) { - GMStatus[i].dcd = 0; - GMStatus[i].dsr = 0; - GMStatus[i].cts = 0; - continue; - } + if (!port->ioaddr) + goto copy; if (!port->port.tty || !port->port.tty->termios) - GMStatus[i].cflag = - port->normal_termios.c_cflag; + ms.cflag = port->normal_termios.c_cflag; else - GMStatus[i].cflag = - port->port.tty->termios->c_cflag; + ms.cflag = port->port.tty->termios->c_cflag; status = inb(port->ioaddr + UART_MSR); - if (status & 0x80 /*UART_MSR_DCD */ ) - GMStatus[i].dcd = 1; - else - GMStatus[i].dcd = 0; - - if (status & 0x20 /*UART_MSR_DSR */ ) - GMStatus[i].dsr = 1; - else - GMStatus[i].dsr = 0; - - - if (status & 0x10 /*UART_MSR_CTS */ ) - GMStatus[i].cts = 1; - else - GMStatus[i].cts = 0; + if (status & UART_MSR_DCD) + ms.dcd = 1; + if (status & UART_MSR_DSR) + ms.dsr = 1; + if (status & UART_MSR_CTS) + ms.cts = 1; + copy: + if (copy_to_user(msu, &ms, sizeof(ms))) { + unlock_kernel(); + return -EFAULT; + } + msu++; } unlock_kernel(); - if (copy_to_user(argp, GMStatus, - sizeof(struct mxser_mstatus) * MXSER_PORTS)) - return -EFAULT; return 0; + } case MOXA_ASPP_MON_EXT: { - int p, shiftbit; - unsigned long opmode; - unsigned cflag, iflag; + struct mxser_mon_ext *me; /* it's 2k, stack unfriendly */ + unsigned int cflag, iflag, p; + u8 opmode; + + me = kzalloc(sizeof(*me), GFP_KERNEL); + if (!me) + return -ENOMEM; lock_kernel(); - for (i = 0; i < MXSER_BOARDS; i++) { - for (j = 0; j < MXSER_PORTS_PER_BOARD; j++) { + for (i = 0, p = 0; i < MXSER_BOARDS; i++) { + for (j = 0; j < MXSER_PORTS_PER_BOARD; j++, p++) { + if (p >= ARRAY_SIZE(me->rx_cnt)) { + i = MXSER_BOARDS; + break; + } port = &mxser_boards[i].ports[j]; if (!port->ioaddr) continue; - status = mxser_get_msr(port->ioaddr, 0, i); + status = mxser_get_msr(port->ioaddr, 0, p); if (status & UART_MSR_TERI) port->icount.rng++; @@ -1718,16 +1696,13 @@ static int mxser_ioctl_special(unsigned int cmd, void __user *argp) port->icount.cts++; port->mon_data.modem_status = status; - mon_data_ext.rx_cnt[i] = port->mon_data.rxcnt; - mon_data_ext.tx_cnt[i] = port->mon_data.txcnt; - mon_data_ext.up_rxcnt[i] = - port->mon_data.up_rxcnt; - mon_data_ext.up_txcnt[i] = - port->mon_data.up_txcnt; - mon_data_ext.modem_status[i] = + me->rx_cnt[p] = port->mon_data.rxcnt; + me->tx_cnt[p] = port->mon_data.txcnt; + me->up_rxcnt[p] = port->mon_data.up_rxcnt; + me->up_txcnt[p] = port->mon_data.up_txcnt; + me->modem_status[p] = port->mon_data.modem_status; - mon_data_ext.baudrate[i] = - tty_get_baud_rate(port->port.tty); + me->baudrate[p] = tty_get_baud_rate(port->port.tty); if (!port->port.tty || !port->port.tty->termios) { cflag = port->normal_termios.c_cflag; @@ -1737,40 +1712,31 @@ static int mxser_ioctl_special(unsigned int cmd, void __user *argp) iflag = port->port.tty->termios->c_iflag; } - mon_data_ext.databits[i] = cflag & CSIZE; - - mon_data_ext.stopbits[i] = cflag & CSTOPB; - - mon_data_ext.parity[i] = - cflag & (PARENB | PARODD | CMSPAR); - - mon_data_ext.flowctrl[i] = 0x00; + me->databits[p] = cflag & CSIZE; + me->stopbits[p] = cflag & CSTOPB; + me->parity[p] = cflag & (PARENB | PARODD | + CMSPAR); if (cflag & CRTSCTS) - mon_data_ext.flowctrl[i] |= 0x03; + me->flowctrl[p] |= 0x03; if (iflag & (IXON | IXOFF)) - mon_data_ext.flowctrl[i] |= 0x0C; + me->flowctrl[p] |= 0x0C; if (port->type == PORT_16550A) - mon_data_ext.fifo[i] = 1; - else - mon_data_ext.fifo[i] = 0; + me->fifo[p] = 1; - p = i % 4; - shiftbit = p * 2; - opmode = inb(port->opmode_ioaddr) >> shiftbit; + opmode = inb(port->opmode_ioaddr) >> + ((p % 4) * 2); opmode &= OP_MODE_MASK; - - mon_data_ext.iftype[i] = opmode; - + me->iftype[p] = opmode; } } unlock_kernel(); - if (copy_to_user(argp, &mon_data_ext, - sizeof(mon_data_ext))) - return -EFAULT; - return 0; + if (copy_to_user(argp, me, sizeof(*me))) + ret = -EFAULT; + kfree(me); + return ret; } default: return -ENOIOCTLCMD; @@ -1804,7 +1770,6 @@ static int mxser_ioctl(struct tty_struct *tty, struct file *file, { struct mxser_port *info = tty->driver_data; struct async_icount cnow; - struct serial_icounter_struct __user *p_cuser; unsigned long flags; void __user *argp = (void __user *)arg; int retval; @@ -1884,30 +1849,26 @@ static int mxser_ioctl(struct tty_struct *tty, struct file *file, * NB: both 1->0 and 0->1 transitions are counted except for * RI where only 0->1 is counted. */ - case TIOCGICOUNT: + case TIOCGICOUNT: { + struct serial_icounter_struct icnt = { 0 }; spin_lock_irqsave(&info->slock, flags); cnow = info->icount; spin_unlock_irqrestore(&info->slock, flags); - p_cuser = argp; - if (put_user(cnow.frame, &p_cuser->frame)) - return -EFAULT; - if (put_user(cnow.brk, &p_cuser->brk)) - return -EFAULT; - if (put_user(cnow.overrun, &p_cuser->overrun)) - return -EFAULT; - if (put_user(cnow.buf_overrun, &p_cuser->buf_overrun)) - return -EFAULT; - if (put_user(cnow.parity, &p_cuser->parity)) - return -EFAULT; - if (put_user(cnow.rx, &p_cuser->rx)) - return -EFAULT; - if (put_user(cnow.tx, &p_cuser->tx)) - return -EFAULT; - put_user(cnow.cts, &p_cuser->cts); - put_user(cnow.dsr, &p_cuser->dsr); - put_user(cnow.rng, &p_cuser->rng); - put_user(cnow.dcd, &p_cuser->dcd); - return 0; + + icnt.frame = cnow.frame; + icnt.brk = cnow.brk; + icnt.overrun = cnow.overrun; + icnt.buf_overrun = cnow.buf_overrun; + icnt.parity = cnow.parity; + icnt.rx = cnow.rx; + icnt.tx = cnow.tx; + icnt.cts = cnow.cts; + icnt.dsr = cnow.dsr; + icnt.rng = cnow.rng; + icnt.dcd = cnow.dcd; + + return copy_to_user(argp, &icnt, sizeof(icnt)) ? -EFAULT : 0; + } case MOXA_HighSpeedOn: return put_user(info->baud_base != 115200 ? 1 : 0, (int __user *)argp); case MOXA_SDS_RSTICOUNTER: @@ -2503,7 +2464,8 @@ static int __devinit mxser_initbrd(struct mxser_board *brd, unsigned int i; int retval; - printk(KERN_INFO "max. baud rate = %d bps.\n", brd->ports[0].max_baud); + printk(KERN_INFO "mxser: max. baud rate = %d bps\n", + brd->ports[0].max_baud); for (i = 0; i < brd->info->nports; i++) { info = &brd->ports[i]; @@ -2586,28 +2548,32 @@ static int __init mxser_get_ISA_conf(int cap, struct mxser_board *brd) irq = regs[9] & 0xF000; irq = irq | (irq >> 4); if (irq != (regs[9] & 0xFF00)) - return MXSER_ERR_IRQ_CONFLIT; + goto err_irqconflict; } else if (brd->info->nports == 4) { irq = regs[9] & 0xF000; irq = irq | (irq >> 4); irq = irq | (irq >> 8); if (irq != regs[9]) - return MXSER_ERR_IRQ_CONFLIT; + goto err_irqconflict; } else if (brd->info->nports == 8) { irq = regs[9] & 0xF000; irq = irq | (irq >> 4); irq = irq | (irq >> 8); if ((irq != regs[9]) || (irq != regs[10])) - return MXSER_ERR_IRQ_CONFLIT; + goto err_irqconflict; } - if (!irq) - return MXSER_ERR_IRQ; + if (!irq) { + printk(KERN_ERR "mxser: interrupt number unset\n"); + return -EIO; + } brd->irq = ((int)(irq & 0xF000) >> 12); for (i = 0; i < 8; i++) brd->ports[i].ioaddr = (int) regs[i + 1] & 0xFFF8; - if ((regs[12] & 0x80) == 0) - return MXSER_ERR_VECTOR; + if ((regs[12] & 0x80) == 0) { + printk(KERN_ERR "mxser: invalid interrupt vector\n"); + return -EIO; + } brd->vector = (int)regs[11]; /* interrupt vector */ if (id == 1) brd->vector_mask = 0x00FF; @@ -2634,13 +2600,26 @@ static int __init mxser_get_ISA_conf(int cap, struct mxser_board *brd) else brd->uart_type = PORT_16450; if (!request_region(brd->ports[0].ioaddr, 8 * brd->info->nports, - "mxser(IO)")) - return MXSER_ERR_IOADDR; + "mxser(IO)")) { + printk(KERN_ERR "mxser: can't request ports I/O region: " + "0x%.8lx-0x%.8lx\n", + brd->ports[0].ioaddr, brd->ports[0].ioaddr + + 8 * brd->info->nports - 1); + return -EIO; + } if (!request_region(brd->vector, 1, "mxser(vector)")) { release_region(brd->ports[0].ioaddr, 8 * brd->info->nports); - return MXSER_ERR_VECTOR; + printk(KERN_ERR "mxser: can't request interrupt vector region: " + "0x%.8lx-0x%.8lx\n", + brd->ports[0].ioaddr, brd->ports[0].ioaddr + + 8 * brd->info->nports - 1); + return -EIO; } return brd->info->nports; + +err_irqconflict: + printk(KERN_ERR "mxser: invalid interrupt number\n"); + return -EIO; } static int __devinit mxser_probe(struct pci_dev *pdev, @@ -2657,20 +2636,20 @@ static int __devinit mxser_probe(struct pci_dev *pdev, break; if (i >= MXSER_BOARDS) { - printk(KERN_ERR "Too many Smartio/Industio family boards found " - "(maximum %d), board not configured\n", MXSER_BOARDS); + dev_err(&pdev->dev, "too many boards found (maximum %d), board " + "not configured\n", MXSER_BOARDS); goto err; } brd = &mxser_boards[i]; brd->idx = i * MXSER_PORTS_PER_BOARD; - printk(KERN_INFO "Found MOXA %s board (BusNo=%d, DevNo=%d)\n", + dev_info(&pdev->dev, "found MOXA %s board (BusNo=%d, DevNo=%d)\n", mxser_cards[ent->driver_data].name, pdev->bus->number, PCI_SLOT(pdev->devfn)); retval = pci_enable_device(pdev); if (retval) { - printk(KERN_ERR "Moxa SmartI/O PCI enable fail !\n"); + dev_err(&pdev->dev, "PCI enable failed\n"); goto err; } @@ -2772,11 +2751,8 @@ static struct pci_driver mxser_driver = { static int __init mxser_module_init(void) { struct mxser_board *brd; - unsigned long cap; - unsigned int i, m, isaloop; - int retval, b; - - pr_debug("Loading module mxser ...\n"); + unsigned int b, i, m; + int retval; mxvar_sdriver = alloc_tty_driver(MXSER_PORTS + 1); if (!mxvar_sdriver) @@ -2806,74 +2782,43 @@ static int __init mxser_module_init(void) goto err_put; } - mxvar_diagflag = 0; - - m = 0; /* Start finding ISA boards here */ - for (isaloop = 0; isaloop < 2; isaloop++) - for (b = 0; b < MXSER_BOARDS && m < MXSER_BOARDS; b++) { - if (!isaloop) - cap = mxserBoardCAP[b]; /* predefined */ - else - cap = ioaddr[b]; /* module param */ - - if (!cap) - continue; + for (m = 0, b = 0; b < MXSER_BOARDS; b++) { + if (!ioaddr[b]) + continue; + + brd = &mxser_boards[m]; + retval = mxser_get_ISA_conf(!ioaddr[b], brd); + if (retval <= 0) { + brd->info = NULL; + continue; + } - brd = &mxser_boards[m]; - retval = mxser_get_ISA_conf(cap, brd); - - if (retval != 0) - printk(KERN_INFO "Found MOXA %s board " - "(CAP=0x%x)\n", - brd->info->name, ioaddr[b]); - - if (retval <= 0) { - if (retval == MXSER_ERR_IRQ) - printk(KERN_ERR "Invalid interrupt " - "number, board not " - "configured\n"); - else if (retval == MXSER_ERR_IRQ_CONFLIT) - printk(KERN_ERR "Invalid interrupt " - "number, board not " - "configured\n"); - else if (retval == MXSER_ERR_VECTOR) - printk(KERN_ERR "Invalid interrupt " - "vector, board not " - "configured\n"); - else if (retval == MXSER_ERR_IOADDR) - printk(KERN_ERR "Invalid I/O address, " - "board not configured\n"); - - brd->info = NULL; - continue; - } + printk(KERN_INFO "mxser: found MOXA %s board (CAP=0x%lx)\n", + brd->info->name, ioaddr[b]); - /* mxser_initbrd will hook ISR. */ - if (mxser_initbrd(brd, NULL) < 0) { - brd->info = NULL; - continue; - } + /* mxser_initbrd will hook ISR. */ + if (mxser_initbrd(brd, NULL) < 0) { + brd->info = NULL; + continue; + } - brd->idx = m * MXSER_PORTS_PER_BOARD; - for (i = 0; i < brd->info->nports; i++) - tty_register_device(mxvar_sdriver, brd->idx + i, - NULL); + brd->idx = m * MXSER_PORTS_PER_BOARD; + for (i = 0; i < brd->info->nports; i++) + tty_register_device(mxvar_sdriver, brd->idx + i, NULL); - m++; - } + m++; + } retval = pci_register_driver(&mxser_driver); if (retval) { - printk(KERN_ERR "Can't register pci driver\n"); + printk(KERN_ERR "mxser: can't register pci driver\n"); if (!m) { retval = -ENODEV; goto err_unr; } /* else: we have some ISA cards under control */ } - pr_debug("Done.\n"); - return 0; err_unr: tty_unregister_driver(mxvar_sdriver); @@ -2886,8 +2831,6 @@ static void __exit mxser_module_exit(void) { unsigned int i, j; - pr_debug("Unloading module mxser ...\n"); - pci_unregister_driver(&mxser_driver); for (i = 0; i < MXSER_BOARDS; i++) /* ISA remains */ @@ -2901,8 +2844,6 @@ static void __exit mxser_module_exit(void) for (i = 0; i < MXSER_BOARDS; i++) if (mxser_boards[i].info != NULL) mxser_release_res(&mxser_boards[i], NULL, 1); - - pr_debug("Done.\n"); } module_init(mxser_module_init); diff --git a/drivers/char/nwflash.c b/drivers/char/nwflash.c index ba012c2..f9f72a2 100644 --- a/drivers/char/nwflash.c +++ b/drivers/char/nwflash.c @@ -122,35 +122,20 @@ static int flash_ioctl(struct inode *inodep, struct file *filep, unsigned int cm static ssize_t flash_read(struct file *file, char __user *buf, size_t size, loff_t *ppos) { - unsigned long p = *ppos; - unsigned int count = size; - int ret = 0; + ssize_t ret; if (flashdebug) printk(KERN_DEBUG "flash_read: flash_read: offset=0x%lX, " "buffer=%p, count=0x%X.\n", p, buf, count); + /* + * We now lock against reads and writes. --rmk + */ + if (mutex_lock_interruptible(&nwflash_mutex)) + return -ERESTARTSYS; - if (count) - ret = -ENXIO; - - if (p < gbFlashSize) { - if (count > gbFlashSize - p) - count = gbFlashSize - p; + ret = simple_read_from_buffer(buf, size, ppos, FLASH_BASE, gbFlashSize); + mutex_unlock(&nwflash_mutex); - /* - * We now lock against reads and writes. --rmk - */ - if (mutex_lock_interruptible(&nwflash_mutex)) - return -ERESTARTSYS; - - ret = copy_to_user(buf, (void *)(FLASH_BASE + p), count); - if (ret == 0) { - ret = count; - *ppos += count; - } else - ret = -EFAULT; - mutex_unlock(&nwflash_mutex); - } return ret; } diff --git a/drivers/char/ppdev.c b/drivers/char/ppdev.c index 7af7a7e..bee39fd 100644 --- a/drivers/char/ppdev.c +++ b/drivers/char/ppdev.c @@ -67,7 +67,7 @@ #include <linux/major.h> #include <linux/ppdev.h> #include <linux/smp_lock.h> -#include <asm/uaccess.h> +#include <linux/uaccess.h> #define PP_VERSION "ppdev: user-space parallel port driver" #define CHRDEV "ppdev" @@ -328,10 +328,9 @@ static enum ieee1284_phase init_phase (int mode) return IEEE1284_PH_FWD_IDLE; } -static int pp_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg) +static int pp_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { - unsigned int minor = iminor(inode); + unsigned int minor = iminor(file->f_path.dentry->d_inode); struct pp_struct *pp = file->private_data; struct parport * port; void __user *argp = (void __user *)arg; @@ -634,6 +633,15 @@ static int pp_ioctl(struct inode *inode, struct file *file, return 0; } +static long pp_ioctl(struct file *file, unsigned int cmd, unsigned long arg) +{ + long ret; + lock_kernel(); + ret = pp_do_ioctl(file, cmd, arg); + unlock_kernel(); + return ret; +} + static int pp_open (struct inode * inode, struct file * file) { unsigned int minor = iminor(inode); @@ -745,7 +753,7 @@ static const struct file_operations pp_fops = { .read = pp_read, .write = pp_write, .poll = pp_poll, - .ioctl = pp_ioctl, + .unlocked_ioctl = pp_ioctl, .open = pp_open, .release = pp_release, }; diff --git a/drivers/char/random.c b/drivers/char/random.c index 0cf98bd..e0d0e37 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -236,6 +236,7 @@ #include <linux/fs.h> #include <linux/genhd.h> #include <linux/interrupt.h> +#include <linux/mm.h> #include <linux/spinlock.h> #include <linux/percpu.h> #include <linux/cryptohash.h> diff --git a/drivers/char/rio/rio_linux.c b/drivers/char/rio/rio_linux.c index 0cdfee1..a8f68a3 100644 --- a/drivers/char/rio/rio_linux.c +++ b/drivers/char/rio/rio_linux.c @@ -179,7 +179,7 @@ static int rio_set_real_termios(void *ptr); static void rio_hungup(void *ptr); static void rio_close(void *ptr); static int rio_chars_in_buffer(void *ptr); -static int rio_fw_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); +static long rio_fw_ioctl(struct file *filp, unsigned int cmd, unsigned long arg); static int rio_init_drivers(void); static void my_hd(void *addr, int len); @@ -240,7 +240,7 @@ static struct real_driver rio_real_driver = { static const struct file_operations rio_fw_fops = { .owner = THIS_MODULE, - .ioctl = rio_fw_ioctl, + .unlocked_ioctl = rio_fw_ioctl, }; static struct miscdevice rio_fw_device = { @@ -560,13 +560,15 @@ static void rio_close(void *ptr) -static int rio_fw_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg) +static long rio_fw_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) { int rc = 0; func_enter(); /* The "dev" argument isn't used. */ + lock_kernel(); rc = riocontrol(p, 0, cmd, arg, capable(CAP_SYS_ADMIN)); + unlock_kernel(); func_exit(); return rc; diff --git a/drivers/char/rtc.c b/drivers/char/rtc.c index fa92a8a..d9799e2 100644 --- a/drivers/char/rtc.c +++ b/drivers/char/rtc.c @@ -78,9 +78,10 @@ #include <linux/wait.h> #include <linux/bcd.h> #include <linux/delay.h> +#include <linux/smp_lock.h> +#include <linux/uaccess.h> #include <asm/current.h> -#include <asm/uaccess.h> #include <asm/system.h> #ifdef CONFIG_X86 @@ -120,8 +121,6 @@ static irqreturn_t hpet_rtc_interrupt(int irq, void *dev_id) return 0; } #endif -#else -extern irqreturn_t hpet_rtc_interrupt(int irq, void *dev_id); #endif /* @@ -144,8 +143,8 @@ static DEFINE_TIMER(rtc_irq_timer, rtc_dropped_irq, 0, 0); static ssize_t rtc_read(struct file *file, char __user *buf, size_t count, loff_t *ppos); -static int rtc_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg); +static long rtc_ioctl(struct file *file, unsigned int cmd, unsigned long arg); +static void rtc_get_rtc_time(struct rtc_time *rtc_tm); #ifdef RTC_IRQ static unsigned int rtc_poll(struct file *file, poll_table *wait); @@ -237,7 +236,7 @@ static inline unsigned char rtc_is_updating(void) * (See ./arch/XXXX/kernel/time.c for the set_rtc_mmss() function.) */ -irqreturn_t rtc_interrupt(int irq, void *dev_id) +static irqreturn_t rtc_interrupt(int irq, void *dev_id) { /* * Can be an alarm interrupt, update complete interrupt, @@ -719,10 +718,13 @@ static int rtc_do_ioctl(unsigned int cmd, unsigned long arg, int kernel) &wtime, sizeof wtime) ? -EFAULT : 0; } -static int rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd, - unsigned long arg) +static long rtc_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { - return rtc_do_ioctl(cmd, arg, 0); + long ret; + lock_kernel(); + ret = rtc_do_ioctl(cmd, arg, 0); + unlock_kernel(); + return ret; } /* @@ -915,7 +917,7 @@ static const struct file_operations rtc_fops = { #ifdef RTC_IRQ .poll = rtc_poll, #endif - .ioctl = rtc_ioctl, + .unlocked_ioctl = rtc_ioctl, .open = rtc_open, .release = rtc_release, .fasync = rtc_fasync, @@ -1302,7 +1304,7 @@ static int rtc_proc_open(struct inode *inode, struct file *file) } #endif -void rtc_get_rtc_time(struct rtc_time *rtc_tm) +static void rtc_get_rtc_time(struct rtc_time *rtc_tm) { unsigned long uip_watchdog = jiffies, flags; unsigned char ctrl; diff --git a/drivers/char/ser_a2232.c b/drivers/char/ser_a2232.c index 4ba3aec..7b0c352 100644 --- a/drivers/char/ser_a2232.c +++ b/drivers/char/ser_a2232.c @@ -192,7 +192,7 @@ static inline void a2232_receive_char(struct a2232_port *port, int ch, int err) Maybe one could implement a more efficient version by not only transferring one character at a time. */ - struct tty_struct *tty = port->gs.tty; + struct tty_struct *tty = port->gs.port.tty; #if 0 switch(err) { @@ -226,7 +226,7 @@ static void a2232_disable_tx_interrupts(void *ptr) /* Does this here really have to be? */ local_irq_save(flags); - port->gs.flags &= ~GS_TX_INTEN; + port->gs.port.flags &= ~GS_TX_INTEN; local_irq_restore(flags); } @@ -242,7 +242,7 @@ static void a2232_enable_tx_interrupts(void *ptr) /* Does this here really have to be? */ local_irq_save(flags); - port->gs.flags |= GS_TX_INTEN; + port->gs.port.flags |= GS_TX_INTEN; local_irq_restore(flags); } @@ -276,9 +276,9 @@ static void a2232_shutdown_port(void *ptr) local_irq_save(flags); - port->gs.flags &= ~GS_ACTIVE; + port->gs.port.flags &= ~GS_ACTIVE; - if (port->gs.tty && port->gs.tty->termios->c_cflag & HUPCL) { + if (port->gs.port.tty && port->gs.port.tty->termios->c_cflag & HUPCL) { /* Set DTR and RTS to Low, flush output. The NetBSD driver "msc.c" does it this way. */ stat->Command = ( (stat->Command & ~A2232CMD_CMask) | @@ -309,7 +309,7 @@ static int a2232_set_real_termios(void *ptr) volatile struct a2232status *status; volatile struct a2232memory *mem; - if (!port->gs.tty || !port->gs.tty->termios) return 0; + if (!port->gs.port.tty || !port->gs.port.tty->termios) return 0; status = a2232stat(port->which_a2232, port->which_port_on_a2232); mem = a2232mem(port->which_a2232); @@ -345,7 +345,7 @@ static int a2232_set_real_termios(void *ptr) } a2232_param |= rate; - cflag = port->gs.tty->termios->c_cflag; + cflag = port->gs.port.tty->termios->c_cflag; // get character size chsize = cflag & CSIZE; @@ -382,7 +382,7 @@ static int a2232_set_real_termios(void *ptr) the conventional way of inserting START/STOP characters by hand in throttle()/unthrottle(). */ - softflow = !!( port->gs.tty->termios->c_iflag & IXOFF ); + softflow = !!( port->gs.port.tty->termios->c_iflag & IXOFF ); // get Parity (Enabled/Disabled? If Enabled, Odd or Even?) parity = cflag & (PARENB | PARODD); @@ -400,9 +400,9 @@ static int a2232_set_real_termios(void *ptr) /* Hmm. Maybe an own a2232_port structure member would be cleaner? */ if (cflag & CLOCAL) - port->gs.flags &= ~ASYNC_CHECK_CD; + port->gs.port.flags &= ~ASYNC_CHECK_CD; else - port->gs.flags |= ASYNC_CHECK_CD; + port->gs.port.flags |= ASYNC_CHECK_CD; /* Now we have all parameters and can go to set them: */ @@ -482,18 +482,18 @@ static int a2232_open(struct tty_struct * tty, struct file * filp) port = &a2232_ports[line]; tty->driver_data = port; - port->gs.tty = tty; - port->gs.count++; + port->gs.port.tty = tty; + port->gs.port.count++; retval = gs_init_port(&port->gs); if (retval) { - port->gs.count--; + port->gs.port.count--; return retval; } - port->gs.flags |= GS_ACTIVE; + port->gs.port.flags |= GS_ACTIVE; retval = gs_block_til_ready(port, filp); if (retval) { - port->gs.count--; + port->gs.port.count--; return retval; } @@ -522,7 +522,7 @@ int ch, err, n, p; for (p = 0; p < NUMLINES; p++){ /* for every port on this board */ err = 0; port = &a2232_ports[n*NUMLINES+p]; - if ( port->gs.flags & GS_ACTIVE ){ /* if the port is used */ + if ( port->gs.port.flags & GS_ACTIVE ){ /* if the port is used */ status = a2232stat(n,p); @@ -577,8 +577,8 @@ int ch, err, n, p; obuf = mem->OutBuf[p]; bufpos = status->OutHead; while ( (port->gs.xmit_cnt > 0) && - (!port->gs.tty->stopped) && - (!port->gs.tty->hw_stopped) ){ /* While there are chars to transmit */ + (!port->gs.port.tty->stopped) && + (!port->gs.port.tty->hw_stopped) ){ /* While there are chars to transmit */ if (((bufpos+1) & A2232_IOBUFLENMASK) != status->OutTail) { /* If the A2232 buffer is not full */ ch = port->gs.xmit_buf[port->gs.xmit_tail]; /* get the next char to transmit */ port->gs.xmit_tail = (port->gs.xmit_tail+1) & (SERIAL_XMIT_SIZE-1); /* modulo-addition for the gs.xmit_buf ring-buffer */ @@ -592,8 +592,8 @@ int ch, err, n, p; status->OutHead = bufpos; /* WakeUp if output buffer runs low */ - if ((port->gs.xmit_cnt <= port->gs.wakeup_chars) && port->gs.tty) { - tty_wakeup(port->gs.tty); + if ((port->gs.xmit_cnt <= port->gs.wakeup_chars) && port->gs.port.tty) { + tty_wakeup(port->gs.port.tty); } } // if the port is used } // for every port on the board @@ -613,16 +613,16 @@ int ch, err, n, p; struct a2232_port *port = &a2232_ports[n*7+p]; port->cd_status = !(ncd & 1); /* ncd&1 <=> CD is now off */ - if (!(port->gs.flags & ASYNC_CHECK_CD)) + if (!(port->gs.port.flags & ASYNC_CHECK_CD)) ; /* Don't report DCD changes */ else if (port->cd_status) { // if DCD on: DCD went UP! /* Are we blocking in open?*/ - wake_up_interruptible(&port->gs.open_wait); + wake_up_interruptible(&port->gs.port.open_wait); } else { // if DCD off: DCD went DOWN! - if (port->gs.tty) - tty_hangup (port->gs.tty); + if (port->gs.port.tty) + tty_hangup (port->gs.port.tty); } } // if CD changed for this port @@ -655,8 +655,8 @@ static void a2232_init_portstructs(void) #ifdef NEW_WRITE_LOCKING mutex_init(&(port->gs.port_write_mutex)); #endif - init_waitqueue_head(&port->gs.open_wait); - init_waitqueue_head(&port->gs.close_wait); + init_waitqueue_head(&port->gs.port.open_wait); + init_waitqueue_head(&port->gs.port.close_wait); } } diff --git a/drivers/char/stallion.c b/drivers/char/stallion.c index b976248..19db1eb 100644 --- a/drivers/char/stallion.c +++ b/drivers/char/stallion.c @@ -1256,7 +1256,6 @@ static int stl_tiocmset(struct tty_struct *tty, struct file *file, static int stl_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg) { struct stlport *portp; - unsigned int ival; int rc; void __user *argp = (void __user *)arg; diff --git a/drivers/char/sx.c b/drivers/char/sx.c index 2162439b..c385206 100644 --- a/drivers/char/sx.c +++ b/drivers/char/sx.c @@ -286,8 +286,8 @@ static void sx_close(void *ptr); static int sx_chars_in_buffer(void *ptr); static int sx_init_board(struct sx_board *board); static int sx_init_portstructs(int nboards, int nports); -static int sx_fw_ioctl(struct inode *inode, struct file *filp, - unsigned int cmd, unsigned long arg); +static long sx_fw_ioctl(struct file *filp, unsigned int cmd, + unsigned long arg); static int sx_init_drivers(void); static struct tty_driver *sx_driver; @@ -396,7 +396,7 @@ static struct real_driver sx_real_driver = { static const struct file_operations sx_fw_fops = { .owner = THIS_MODULE, - .ioctl = sx_fw_ioctl, + .unlocked_ioctl = sx_fw_ioctl, }; static struct miscdevice sx_fw_device = { @@ -1686,10 +1686,10 @@ static int do_memtest_w(struct sx_board *board, int min, int max) } #endif -static int sx_fw_ioctl(struct inode *inode, struct file *filp, - unsigned int cmd, unsigned long arg) +static long sx_fw_ioctl(struct file *filp, unsigned int cmd, + unsigned long arg) { - int rc = 0; + long rc = 0; int __user *descr = (int __user *)arg; int i; static struct sx_board *board = NULL; @@ -1699,13 +1699,10 @@ static int sx_fw_ioctl(struct inode *inode, struct file *filp, func_enter(); -#if 0 - /* Removed superuser check: Sysops can use the permissions on the device - file to restrict access. Recommendation: Root only. (root.root 600) */ - if (!capable(CAP_SYS_ADMIN)) { + if (!capable(CAP_SYS_RAWIO)) return -EPERM; - } -#endif + + lock_kernel(); sx_dprintk(SX_DEBUG_FIRMWARE, "IOCTL %x: %lx\n", cmd, arg); @@ -1720,19 +1717,23 @@ static int sx_fw_ioctl(struct inode *inode, struct file *filp, for (i = 0; i < SX_NBOARDS; i++) sx_dprintk(SX_DEBUG_FIRMWARE, "<%x> ", boards[i].flags); sx_dprintk(SX_DEBUG_FIRMWARE, "\n"); + unlock_kernel(); return -EIO; } switch (cmd) { case SXIO_SET_BOARD: sx_dprintk(SX_DEBUG_FIRMWARE, "set board to %ld\n", arg); + rc = -EIO; if (arg >= SX_NBOARDS) - return -EIO; + break; sx_dprintk(SX_DEBUG_FIRMWARE, "not out of range\n"); if (!(boards[arg].flags & SX_BOARD_PRESENT)) - return -EIO; + break; sx_dprintk(SX_DEBUG_FIRMWARE, ".. and present!\n"); board = &boards[arg]; + rc = 0; + /* FIXME: And this does ... nothing?? */ break; case SXIO_GET_TYPE: rc = -ENOENT; /* If we manage to miss one, return error. */ @@ -1746,7 +1747,7 @@ static int sx_fw_ioctl(struct inode *inode, struct file *filp, rc = SX_TYPE_SI; if (IS_EISA_BOARD(board)) rc = SX_TYPE_SI; - sx_dprintk(SX_DEBUG_FIRMWARE, "returning type= %d\n", rc); + sx_dprintk(SX_DEBUG_FIRMWARE, "returning type= %ld\n", rc); break; case SXIO_DO_RAMTEST: if (sx_initialized) /* Already initialized: better not ramtest the board. */ @@ -1760,19 +1761,26 @@ static int sx_fw_ioctl(struct inode *inode, struct file *filp, rc = do_memtest(board, 0, 0x7ff8); /* if (!rc) rc = do_memtest_w (board, 0, 0x7ff8); */ } - sx_dprintk(SX_DEBUG_FIRMWARE, "returning memtest result= %d\n", - rc); + sx_dprintk(SX_DEBUG_FIRMWARE, + "returning memtest result= %ld\n", rc); break; case SXIO_DOWNLOAD: - if (sx_initialized) /* Already initialized */ - return -EEXIST; - if (!sx_reset(board)) - return -EIO; + if (sx_initialized) {/* Already initialized */ + rc = -EEXIST; + break; + } + if (!sx_reset(board)) { + rc = -EIO; + break; + } sx_dprintk(SX_DEBUG_INIT, "reset the board...\n"); tmp = kmalloc(SX_CHUNK_SIZE, GFP_USER); - if (!tmp) - return -ENOMEM; + if (!tmp) { + rc = -ENOMEM; + break; + } + /* FIXME: check returns */ get_user(nbytes, descr++); get_user(offset, descr++); get_user(data, descr++); @@ -1782,7 +1790,8 @@ static int sx_fw_ioctl(struct inode *inode, struct file *filp, (i + SX_CHUNK_SIZE > nbytes) ? nbytes - i : SX_CHUNK_SIZE)) { kfree(tmp); - return -EFAULT; + rc = -EFAULT; + break; } memcpy_toio(board->base2 + offset + i, tmp, (i + SX_CHUNK_SIZE > nbytes) ? @@ -1798,13 +1807,17 @@ static int sx_fw_ioctl(struct inode *inode, struct file *filp, rc = sx_nports; break; case SXIO_INIT: - if (sx_initialized) /* Already initialized */ - return -EEXIST; + if (sx_initialized) { /* Already initialized */ + rc = -EEXIST; + break; + } /* This is not allowed until all boards are initialized... */ for (i = 0; i < SX_NBOARDS; i++) { if ((boards[i].flags & SX_BOARD_PRESENT) && - !(boards[i].flags & SX_BOARD_INITIALIZED)) - return -EIO; + !(boards[i].flags & SX_BOARD_INITIALIZED)) { + rc = -EIO; + break; + } } for (i = 0; i < SX_NBOARDS; i++) if (!(boards[i].flags & SX_BOARD_PRESENT)) @@ -1832,10 +1845,10 @@ static int sx_fw_ioctl(struct inode *inode, struct file *filp, rc = sx_nports; break; default: - printk(KERN_WARNING "Unknown ioctl on firmware device (%x).\n", - cmd); + rc = -ENOTTY; break; } + unlock_kernel(); func_exit(); return rc; } diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c index e1fc193..ae766d8 100644 --- a/drivers/char/tpm/tpm.c +++ b/drivers/char/tpm/tpm.c @@ -580,91 +580,133 @@ void tpm_continue_selftest(struct tpm_chip *chip) } EXPORT_SYMBOL_GPL(tpm_continue_selftest); +#define TPM_INTERNAL_RESULT_SIZE 200 + ssize_t tpm_show_enabled(struct device * dev, struct device_attribute * attr, char *buf) { - u8 data[max_t(int, ARRAY_SIZE(tpm_cap), 35)]; + u8 *data; ssize_t rc; struct tpm_chip *chip = dev_get_drvdata(dev); if (chip == NULL) return -ENODEV; + data = kzalloc(TPM_INTERNAL_RESULT_SIZE, GFP_KERNEL); + if (!data) + return -ENOMEM; + memcpy(data, tpm_cap, sizeof(tpm_cap)); data[TPM_CAP_IDX] = TPM_CAP_FLAG; data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_FLAG_PERM; - rc = transmit_cmd(chip, data, sizeof(data), - "attemtping to determine the permanent state"); - if (rc) + rc = transmit_cmd(chip, data, TPM_INTERNAL_RESULT_SIZE, + "attemtping to determine the permanent enabled state"); + if (rc) { + kfree(data); return 0; - return sprintf(buf, "%d\n", !data[TPM_GET_CAP_PERM_DISABLE_IDX]); + } + + rc = sprintf(buf, "%d\n", !data[TPM_GET_CAP_PERM_DISABLE_IDX]); + + kfree(data); + return rc; } EXPORT_SYMBOL_GPL(tpm_show_enabled); ssize_t tpm_show_active(struct device * dev, struct device_attribute * attr, char *buf) { - u8 data[max_t(int, ARRAY_SIZE(tpm_cap), 35)]; + u8 *data; ssize_t rc; struct tpm_chip *chip = dev_get_drvdata(dev); if (chip == NULL) return -ENODEV; + data = kzalloc(TPM_INTERNAL_RESULT_SIZE, GFP_KERNEL); + if (!data) + return -ENOMEM; + memcpy(data, tpm_cap, sizeof(tpm_cap)); data[TPM_CAP_IDX] = TPM_CAP_FLAG; data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_FLAG_PERM; - rc = transmit_cmd(chip, data, sizeof(data), - "attemtping to determine the permanent state"); - if (rc) + rc = transmit_cmd(chip, data, TPM_INTERNAL_RESULT_SIZE, + "attemtping to determine the permanent active state"); + if (rc) { + kfree(data); return 0; - return sprintf(buf, "%d\n", !data[TPM_GET_CAP_PERM_INACTIVE_IDX]); + } + + rc = sprintf(buf, "%d\n", !data[TPM_GET_CAP_PERM_INACTIVE_IDX]); + + kfree(data); + return rc; } EXPORT_SYMBOL_GPL(tpm_show_active); ssize_t tpm_show_owned(struct device * dev, struct device_attribute * attr, char *buf) { - u8 data[sizeof(tpm_cap)]; + u8 *data; ssize_t rc; struct tpm_chip *chip = dev_get_drvdata(dev); if (chip == NULL) return -ENODEV; + data = kzalloc(TPM_INTERNAL_RESULT_SIZE, GFP_KERNEL); + if (!data) + return -ENOMEM; + memcpy(data, tpm_cap, sizeof(tpm_cap)); data[TPM_CAP_IDX] = TPM_CAP_PROP; data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_OWNER; - rc = transmit_cmd(chip, data, sizeof(data), + rc = transmit_cmd(chip, data, TPM_INTERNAL_RESULT_SIZE, "attempting to determine the owner state"); - if (rc) + if (rc) { + kfree(data); return 0; - return sprintf(buf, "%d\n", data[TPM_GET_CAP_RET_BOOL_1_IDX]); + } + + rc = sprintf(buf, "%d\n", data[TPM_GET_CAP_RET_BOOL_1_IDX]); + + kfree(data); + return rc; } EXPORT_SYMBOL_GPL(tpm_show_owned); ssize_t tpm_show_temp_deactivated(struct device * dev, struct device_attribute * attr, char *buf) { - u8 data[sizeof(tpm_cap)]; + u8 *data; ssize_t rc; struct tpm_chip *chip = dev_get_drvdata(dev); if (chip == NULL) return -ENODEV; + data = kzalloc(TPM_INTERNAL_RESULT_SIZE, GFP_KERNEL); + if (!data) + return -ENOMEM; + memcpy(data, tpm_cap, sizeof(tpm_cap)); data[TPM_CAP_IDX] = TPM_CAP_FLAG; data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_FLAG_VOL; - rc = transmit_cmd(chip, data, sizeof(data), + rc = transmit_cmd(chip, data, TPM_INTERNAL_RESULT_SIZE, "attempting to determine the temporary state"); - if (rc) + if (rc) { + kfree(data); return 0; - return sprintf(buf, "%d\n", data[TPM_GET_CAP_TEMP_INACTIVE_IDX]); + } + + rc = sprintf(buf, "%d\n", data[TPM_GET_CAP_TEMP_INACTIVE_IDX]); + + kfree(data); + return rc; } EXPORT_SYMBOL_GPL(tpm_show_temp_deactivated); @@ -678,7 +720,7 @@ static const u8 pcrread[] = { ssize_t tpm_show_pcrs(struct device *dev, struct device_attribute *attr, char *buf) { - u8 data[max_t(int, max(ARRAY_SIZE(tpm_cap), ARRAY_SIZE(pcrread)), 30)]; + u8 *data; ssize_t rc; int i, j, num_pcrs; __be32 index; @@ -688,21 +730,27 @@ ssize_t tpm_show_pcrs(struct device *dev, struct device_attribute *attr, if (chip == NULL) return -ENODEV; + data = kzalloc(TPM_INTERNAL_RESULT_SIZE, GFP_KERNEL); + if (!data) + return -ENOMEM; + memcpy(data, tpm_cap, sizeof(tpm_cap)); data[TPM_CAP_IDX] = TPM_CAP_PROP; data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_PCR; - rc = transmit_cmd(chip, data, sizeof(data), + rc = transmit_cmd(chip, data, TPM_INTERNAL_RESULT_SIZE, "attempting to determine the number of PCRS"); - if (rc) + if (rc) { + kfree(data); return 0; + } num_pcrs = be32_to_cpu(*((__be32 *) (data + 14))); for (i = 0; i < num_pcrs; i++) { memcpy(data, pcrread, sizeof(pcrread)); index = cpu_to_be32(i); memcpy(data + 10, &index, 4); - rc = transmit_cmd(chip, data, sizeof(data), + rc = transmit_cmd(chip, data, TPM_INTERNAL_RESULT_SIZE, "attempting to read a PCR"); if (rc) goto out; @@ -712,6 +760,7 @@ ssize_t tpm_show_pcrs(struct device *dev, struct device_attribute *attr, str += sprintf(str, "\n"); } out: + kfree(data); return str - buf; } EXPORT_SYMBOL_GPL(tpm_show_pcrs); @@ -795,7 +844,7 @@ static const u8 cap_version[] = { ssize_t tpm_show_caps(struct device *dev, struct device_attribute *attr, char *buf) { - u8 data[max_t(int, max(ARRAY_SIZE(tpm_cap), ARRAY_SIZE(cap_version)), 30)]; + u8 *data; ssize_t rc; char *str = buf; @@ -803,21 +852,27 @@ ssize_t tpm_show_caps(struct device *dev, struct device_attribute *attr, if (chip == NULL) return -ENODEV; + data = kzalloc(TPM_INTERNAL_RESULT_SIZE, GFP_KERNEL); + if (!data) + return -ENOMEM; + memcpy(data, tpm_cap, sizeof(tpm_cap)); data[TPM_CAP_IDX] = TPM_CAP_PROP; data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_MANUFACTURER; - rc = transmit_cmd(chip, data, sizeof(data), + rc = transmit_cmd(chip, data, TPM_INTERNAL_RESULT_SIZE, "attempting to determine the manufacturer"); - if (rc) + if (rc) { + kfree(data); return 0; + } str += sprintf(str, "Manufacturer: 0x%x\n", be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_1_IDX)))); memcpy(data, cap_version, sizeof(cap_version)); data[CAP_VERSION_IDX] = CAP_VERSION_1_1; - rc = transmit_cmd(chip, data, sizeof(data), + rc = transmit_cmd(chip, data, TPM_INTERNAL_RESULT_SIZE, "attempting to determine the 1.1 version"); if (rc) goto out; @@ -828,6 +883,7 @@ ssize_t tpm_show_caps(struct device *dev, struct device_attribute *attr, (int) data[17]); out: + kfree(data); return str - buf; } EXPORT_SYMBOL_GPL(tpm_show_caps); @@ -835,7 +891,7 @@ EXPORT_SYMBOL_GPL(tpm_show_caps); ssize_t tpm_show_caps_1_2(struct device * dev, struct device_attribute * attr, char *buf) { - u8 data[max_t(int, max(ARRAY_SIZE(tpm_cap), ARRAY_SIZE(cap_version)), 30)]; + u8 *data; ssize_t len; char *str = buf; @@ -843,15 +899,20 @@ ssize_t tpm_show_caps_1_2(struct device * dev, if (chip == NULL) return -ENODEV; + data = kzalloc(TPM_INTERNAL_RESULT_SIZE, GFP_KERNEL); + if (!data) + return -ENOMEM; + memcpy(data, tpm_cap, sizeof(tpm_cap)); data[TPM_CAP_IDX] = TPM_CAP_PROP; data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_MANUFACTURER; - if ((len = tpm_transmit(chip, data, sizeof(data))) <= - TPM_ERROR_SIZE) { + len = tpm_transmit(chip, data, TPM_INTERNAL_RESULT_SIZE); + if (len <= TPM_ERROR_SIZE) { dev_dbg(chip->dev, "A TPM error (%d) occurred " "attempting to determine the manufacturer\n", be32_to_cpu(*((__be32 *) (data + TPM_RET_CODE_IDX)))); + kfree(data); return 0; } @@ -861,8 +922,8 @@ ssize_t tpm_show_caps_1_2(struct device * dev, memcpy(data, cap_version, sizeof(cap_version)); data[CAP_VERSION_IDX] = CAP_VERSION_1_2; - if ((len = tpm_transmit(chip, data, sizeof(data))) <= - TPM_ERROR_SIZE) { + len = tpm_transmit(chip, data, TPM_INTERNAL_RESULT_SIZE); + if (len <= TPM_ERROR_SIZE) { dev_err(chip->dev, "A TPM error (%d) occurred " "attempting to determine the 1.2 version\n", be32_to_cpu(*((__be32 *) (data + TPM_RET_CODE_IDX)))); @@ -874,6 +935,7 @@ ssize_t tpm_show_caps_1_2(struct device * dev, (int) data[19]); out: + kfree(data); return str - buf; } EXPORT_SYMBOL_GPL(tpm_show_caps_1_2); @@ -966,7 +1028,7 @@ ssize_t tpm_write(struct file *file, const char __user *buf, size_t size, loff_t *off) { struct tpm_chip *chip = file->private_data; - int in_size = size, out_size; + size_t in_size = size, out_size; /* cannot perform a write until the read has cleared either via tpm_read or a user_read_timer timeout */ @@ -1001,7 +1063,7 @@ ssize_t tpm_read(struct file *file, char __user *buf, size_t size, loff_t *off) { struct tpm_chip *chip = file->private_data; - int ret_size; + ssize_t ret_size; del_singleshot_timer_sync(&chip->user_read_timer); flush_scheduled_work(); diff --git a/drivers/char/tpm/tpm_bios.c b/drivers/char/tpm/tpm_bios.c index 60a2d26..68f052b 100644 --- a/drivers/char/tpm/tpm_bios.c +++ b/drivers/char/tpm/tpm_bios.c @@ -448,7 +448,7 @@ out_free: goto out; } -const struct file_operations tpm_ascii_bios_measurements_ops = { +static const struct file_operations tpm_ascii_bios_measurements_ops = { .open = tpm_ascii_bios_measurements_open, .read = seq_read, .llseek = seq_lseek, @@ -486,7 +486,7 @@ out_free: goto out; } -const struct file_operations tpm_binary_bios_measurements_ops = { +static const struct file_operations tpm_binary_bios_measurements_ops = { .open = tpm_binary_bios_measurements_open, .read = seq_read, .llseek = seq_lseek, diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c index c7a977b..ed1879c 100644 --- a/drivers/char/tpm/tpm_tis.c +++ b/drivers/char/tpm/tpm_tis.c @@ -622,6 +622,7 @@ static struct pnp_device_id tpm_pnp_tbl[] __devinitdata = { {"ATM1200", 0}, /* Atmel */ {"IFX0102", 0}, /* Infineon */ {"BCM0101", 0}, /* Broadcom */ + {"BCM0102", 0}, /* Broadcom */ {"NSC1200", 0}, /* National */ {"ICO0102", 0}, /* Intel */ /* Add new here */ diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c index fa48dba..e1b46bc 100644 --- a/drivers/char/tty_io.c +++ b/drivers/char/tty_io.c @@ -1119,19 +1119,6 @@ int tty_hung_up_p(struct file *filp) EXPORT_SYMBOL(tty_hung_up_p); -/** - * is_tty - checker whether file is a TTY - * @filp: file handle that may be a tty - * - * Check if the file handle is a tty handle. - */ - -int is_tty(struct file *filp) -{ - return filp->f_op->read == tty_read - || filp->f_op->read == hung_up_tty_read; -} - static void session_clear_tty(struct pid *session) { struct task_struct *p; @@ -3593,7 +3580,6 @@ void proc_clear_tty(struct task_struct *p) p->signal->tty = NULL; spin_unlock_irq(&p->sighand->siglock); } -EXPORT_SYMBOL(proc_clear_tty); /* Called under the sighand lock */ diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c index dc17fe3..d0f4eb6 100644 --- a/drivers/char/virtio_console.c +++ b/drivers/char/virtio_console.c @@ -46,6 +46,9 @@ static char *in, *inbuf; /* The operations for our console. */ static struct hv_ops virtio_cons; +/* The hvc device */ +static struct hvc_struct *hvc; + /*D:310 The put_chars() callback is pretty straightforward. * * We turn the characters into a scatter-gather list, add it to the output @@ -134,6 +137,27 @@ int __init virtio_cons_early_init(int (*put_chars)(u32, const char *, int)) return hvc_instantiate(0, 0, &virtio_cons); } +/* + * we support only one console, the hvc struct is a global var + * There is no need to do anything + */ +static int notifier_add_vio(struct hvc_struct *hp, int data) +{ + hp->irq_requested = 1; + return 0; +} + +static void notifier_del_vio(struct hvc_struct *hp, int data) +{ + hp->irq_requested = 0; +} + +static void hvc_handle_input(struct virtqueue *vq) +{ + if (hvc_poll(hvc)) + hvc_kick(); +} + /*D:370 Once we're further in boot, we get probed like any other virtio device. * At this stage we set up the output virtqueue. * @@ -144,7 +168,6 @@ int __init virtio_cons_early_init(int (*put_chars)(u32, const char *, int)) static int __devinit virtcons_probe(struct virtio_device *dev) { int err; - struct hvc_struct *hvc; vdev = dev; @@ -158,7 +181,7 @@ static int __devinit virtcons_probe(struct virtio_device *dev) /* Find the input queue. */ /* FIXME: This is why we want to wean off hvc: we do nothing * when input comes in. */ - in_vq = vdev->config->find_vq(vdev, 0, NULL); + in_vq = vdev->config->find_vq(vdev, 0, hvc_handle_input); if (IS_ERR(in_vq)) { err = PTR_ERR(in_vq); goto free; @@ -173,15 +196,18 @@ static int __devinit virtcons_probe(struct virtio_device *dev) /* Start using the new console output. */ virtio_cons.get_chars = get_chars; virtio_cons.put_chars = put_chars; + virtio_cons.notifier_add = notifier_add_vio; + virtio_cons.notifier_del = notifier_del_vio; /* The first argument of hvc_alloc() is the virtual console number, so - * we use zero. The second argument is the interrupt number; we - * currently leave this as zero: it would be better not to use the - * hvc mechanism and fix this (FIXME!). + * we use zero. The second argument is the parameter for the + * notification mechanism (like irq number). We currently leave this + * as zero, virtqueues have implicit notifications. * * The third argument is a "struct hv_ops" containing the put_chars() - * and get_chars() pointers. The final argument is the output buffer - * size: we can do any size, so we put PAGE_SIZE here. */ + * get_chars(), notifier_add() and notifier_del() pointers. + * The final argument is the output buffer size: we can do any size, + * so we put PAGE_SIZE here. */ hvc = hvc_alloc(0, 0, &virtio_cons, PAGE_SIZE); if (IS_ERR(hvc)) { err = PTR_ERR(hvc); diff --git a/drivers/char/vme_scc.c b/drivers/char/vme_scc.c index 69c5afe..1718b3c 100644 --- a/drivers/char/vme_scc.c +++ b/drivers/char/vme_scc.c @@ -183,8 +183,8 @@ static void scc_init_portstructs(void) #ifdef NEW_WRITE_LOCKING port->gs.port_write_mutex = MUTEX; #endif - init_waitqueue_head(&port->gs.open_wait); - init_waitqueue_head(&port->gs.close_wait); + init_waitqueue_head(&port->gs.port.open_wait); + init_waitqueue_head(&port->gs.port.close_wait); } } @@ -422,7 +422,7 @@ static irqreturn_t scc_rx_int(int irq, void *data) { unsigned char ch; struct scc_port *port = data; - struct tty_struct *tty = port->gs.tty; + struct tty_struct *tty = port->gs.port.tty; SCC_ACCESS_INIT(port); ch = SCCread_NB(RX_DATA_REG); @@ -453,7 +453,7 @@ static irqreturn_t scc_rx_int(int irq, void *data) static irqreturn_t scc_spcond_int(int irq, void *data) { struct scc_port *port = data; - struct tty_struct *tty = port->gs.tty; + struct tty_struct *tty = port->gs.port.tty; unsigned char stat, ch, err; int int_pending_mask = port->channel == CHANNEL_A ? IPR_A_RX : IPR_B_RX; @@ -500,7 +500,7 @@ static irqreturn_t scc_tx_int(int irq, void *data) struct scc_port *port = data; SCC_ACCESS_INIT(port); - if (!port->gs.tty) { + if (!port->gs.port.tty) { printk(KERN_WARNING "scc_tx_int with NULL tty!\n"); SCCmod (INT_AND_DMA_REG, ~IDR_TX_INT_ENAB, 0); SCCwrite(COMMAND_REG, CR_TX_PENDING_RESET); @@ -512,8 +512,9 @@ static irqreturn_t scc_tx_int(int irq, void *data) SCCwrite(TX_DATA_REG, port->x_char); port->x_char = 0; } - else if ((port->gs.xmit_cnt <= 0) || port->gs.tty->stopped || - port->gs.tty->hw_stopped) + else if ((port->gs.xmit_cnt <= 0) || + port->gs.port.tty->stopped || + port->gs.port.tty->hw_stopped) break; else { SCCwrite(TX_DATA_REG, port->gs.xmit_buf[port->gs.xmit_tail++]); @@ -522,15 +523,15 @@ static irqreturn_t scc_tx_int(int irq, void *data) break; } } - if ((port->gs.xmit_cnt <= 0) || port->gs.tty->stopped || - port->gs.tty->hw_stopped) { + if ((port->gs.xmit_cnt <= 0) || port->gs.port.tty->stopped || + port->gs.port.tty->hw_stopped) { /* disable tx interrupts */ SCCmod (INT_AND_DMA_REG, ~IDR_TX_INT_ENAB, 0); SCCwrite(COMMAND_REG, CR_TX_PENDING_RESET); /* disable tx_int on next tx underrun? */ - port->gs.flags &= ~GS_TX_INTEN; + port->gs.port.flags &= ~GS_TX_INTEN; } - if (port->gs.tty && port->gs.xmit_cnt <= port->gs.wakeup_chars) - tty_wakeup(port->gs.tty); + if (port->gs.port.tty && port->gs.xmit_cnt <= port->gs.wakeup_chars) + tty_wakeup(port->gs.port.tty); SCCwrite_NB(COMMAND_REG, CR_HIGHEST_IUS_RESET); return IRQ_HANDLED; @@ -550,14 +551,14 @@ static irqreturn_t scc_stat_int(int irq, void *data) if (changed & SR_DCD) { port->c_dcd = !!(sr & SR_DCD); - if (!(port->gs.flags & ASYNC_CHECK_CD)) + if (!(port->gs.port.flags & ASYNC_CHECK_CD)) ; /* Don't report DCD changes */ else if (port->c_dcd) { - wake_up_interruptible(&port->gs.open_wait); + wake_up_interruptible(&port->gs.port.open_wait); } else { - if (port->gs.tty) - tty_hangup (port->gs.tty); + if (port->gs.port.tty) + tty_hangup (port->gs.port.tty); } } SCCwrite(COMMAND_REG, CR_EXTSTAT_RESET); @@ -578,7 +579,7 @@ static void scc_disable_tx_interrupts(void *ptr) local_irq_save(flags); SCCmod(INT_AND_DMA_REG, ~IDR_TX_INT_ENAB, 0); - port->gs.flags &= ~GS_TX_INTEN; + port->gs.port.flags &= ~GS_TX_INTEN; local_irq_restore(flags); } @@ -636,8 +637,8 @@ static void scc_shutdown_port(void *ptr) { struct scc_port *port = ptr; - port->gs.flags &= ~ GS_ACTIVE; - if (port->gs.tty && port->gs.tty->termios->c_cflag & HUPCL) { + port->gs.port.flags &= ~ GS_ACTIVE; + if (port->gs.port.tty && port->gs.port.tty->termios->c_cflag & HUPCL) { scc_setsignals (port, 0, 0); } } @@ -652,14 +653,14 @@ static int scc_set_real_termios (void *ptr) struct scc_port *port = ptr; SCC_ACCESS_INIT(port); - if (!port->gs.tty || !port->gs.tty->termios) return 0; + if (!port->gs.port.tty || !port->gs.port.tty->termios) return 0; channel = port->channel; if (channel == CHANNEL_A) return 0; /* Settings controlled by boot PROM */ - cflag = port->gs.tty->termios->c_cflag; + cflag = port->gs.port.tty->termios->c_cflag; baud = port->gs.baud; chsize = (cflag & CSIZE) >> 4; @@ -678,9 +679,9 @@ static int scc_set_real_termios (void *ptr) } if (cflag & CLOCAL) - port->gs.flags &= ~ASYNC_CHECK_CD; + port->gs.port.flags &= ~ASYNC_CHECK_CD; else - port->gs.flags |= ASYNC_CHECK_CD; + port->gs.port.flags |= ASYNC_CHECK_CD; #ifdef CONFIG_MVME147_SCC if (MACH_IS_MVME147) @@ -856,7 +857,7 @@ static int scc_open (struct tty_struct * tty, struct file * filp) { COMMAND_REG, CR_EXTSTAT_RESET }, }; #endif - if (!(port->gs.flags & ASYNC_INITIALIZED)) { + if (!(port->gs.port.flags & ASYNC_INITIALIZED)) { local_irq_save(flags); #if defined(CONFIG_MVME147_SCC) || defined(CONFIG_MVME162_SCC) if (MACH_IS_MVME147 || MACH_IS_MVME16x) { @@ -880,18 +881,18 @@ static int scc_open (struct tty_struct * tty, struct file * filp) } tty->driver_data = port; - port->gs.tty = tty; - port->gs.count++; + port->gs.port.tty = tty; + port->gs.port.count++; retval = gs_init_port(&port->gs); if (retval) { - port->gs.count--; + port->gs.port.count--; return retval; } - port->gs.flags |= GS_ACTIVE; + port->gs.port.flags |= GS_ACTIVE; retval = gs_block_til_ready(port, filp); if (retval) { - port->gs.count--; + port->gs.port.count--; return retval; } diff --git a/drivers/char/vt.c b/drivers/char/vt.c index e32a076..82a51f3 100644 --- a/drivers/char/vt.c +++ b/drivers/char/vt.c @@ -261,7 +261,7 @@ static void notify_update(struct vc_data *vc) #ifdef VT_BUF_VRAM_ONLY #define DO_UPDATE(vc) 0 #else -#define DO_UPDATE(vc) CON_IS_VISIBLE(vc) +#define DO_UPDATE(vc) (CON_IS_VISIBLE(vc) && !console_blanked) #endif static inline unsigned short *screenpos(struct vc_data *vc, int offset, int viewed) @@ -2211,7 +2211,7 @@ rescan_last_byte: c = 0xfffd; tc = c; } else { /* no utf or alternate charset mode */ - tc = vc->vc_translate[vc->vc_toggle_meta ? (c | 0x80) : c]; + tc = vc_translate(vc, c); } param.c = tc; @@ -2749,8 +2749,8 @@ static int con_open(struct tty_struct *tty, struct file *filp) tty->termios->c_iflag |= IUTF8; else tty->termios->c_iflag &= ~IUTF8; - release_console_sem(); vcs_make_sysfs(tty); + release_console_sem(); return ret; } } @@ -2775,8 +2775,8 @@ static void con_close(struct tty_struct *tty, struct file *filp) if (vc) vc->vc_tty = NULL; tty->driver_data = NULL; - release_console_sem(); vcs_remove_sysfs(tty); + release_console_sem(); mutex_unlock(&tty_mutex); /* * tty_mutex is released, but we still hold BKL, so there is diff --git a/drivers/char/xilinx_hwicap/xilinx_hwicap.c b/drivers/char/xilinx_hwicap/xilinx_hwicap.c index 51966cc..8bfee5f 100644 --- a/drivers/char/xilinx_hwicap/xilinx_hwicap.c +++ b/drivers/char/xilinx_hwicap/xilinx_hwicap.c @@ -87,7 +87,6 @@ #include <linux/mutex.h> #include <linux/smp_lock.h> #include <linux/sysctl.h> -#include <linux/version.h> #include <linux/fs.h> #include <linux/cdev.h> #include <linux/platform_device.h> diff --git a/drivers/edac/Kconfig b/drivers/edac/Kconfig index 6e6c3c4..5a11e3c 100644 --- a/drivers/edac/Kconfig +++ b/drivers/edac/Kconfig @@ -123,6 +123,13 @@ config EDAC_I5000 Support for error detection and correction the Intel Greekcreek/Blackford chipsets. +config EDAC_I5100 + tristate "Intel San Clemente MCH" + depends on EDAC_MM_EDAC && X86 && PCI + help + Support for error detection and correction the Intel + San Clemente MCH. + config EDAC_MPC85XX tristate "Freescale MPC85xx" depends on EDAC_MM_EDAC && FSL_SOC && MPC85xx diff --git a/drivers/edac/Makefile b/drivers/edac/Makefile index 8380773..e5e9104 100644 --- a/drivers/edac/Makefile +++ b/drivers/edac/Makefile @@ -19,6 +19,7 @@ endif obj-$(CONFIG_EDAC_AMD76X) += amd76x_edac.o obj-$(CONFIG_EDAC_I5000) += i5000_edac.o +obj-$(CONFIG_EDAC_I5100) += i5100_edac.o obj-$(CONFIG_EDAC_E7XXX) += e7xxx_edac.o obj-$(CONFIG_EDAC_E752X) += e752x_edac.o obj-$(CONFIG_EDAC_I82443BXGX) += i82443bxgx_edac.o diff --git a/drivers/edac/e752x_edac.c b/drivers/edac/e752x_edac.c index c94a0eb..facfdb1 100644 --- a/drivers/edac/e752x_edac.c +++ b/drivers/edac/e752x_edac.c @@ -28,6 +28,7 @@ #define E752X_REVISION " Ver: 2.0.2 " __DATE__ #define EDAC_MOD_STR "e752x_edac" +static int report_non_memory_errors; static int force_function_unhide; static int sysbus_parity = -1; @@ -117,7 +118,7 @@ static struct edac_pci_ctl_info *e752x_pci; #define E752X_BUF_FERR 0x70 /* Memory buffer first error reg (8b) */ #define E752X_BUF_NERR 0x72 /* Memory buffer next error reg (8b) */ #define E752X_BUF_ERRMASK 0x74 /* Memory buffer error mask reg (8b) */ -#define E752X_BUF_SMICMD 0x7A /* Memory buffer SMI command reg (8b) */ +#define E752X_BUF_SMICMD 0x7A /* Memory buffer SMI cmd reg (8b) */ #define E752X_DRAM_FERR 0x80 /* DRAM first error register (16b) */ #define E752X_DRAM_NERR 0x82 /* DRAM next error register (16b) */ #define E752X_DRAM_ERRMASK 0x84 /* DRAM error mask register (8b) */ @@ -127,7 +128,7 @@ static struct edac_pci_ctl_info *e752x_pci; /* error address register (32b) */ /* * 31 Reserved - * 30:2 CE address (64 byte block 34:6) + * 30:2 CE address (64 byte block 34:6 * 1 Reserved * 0 HiLoCS */ @@ -147,11 +148,11 @@ static struct edac_pci_ctl_info *e752x_pci; * 1 Reserved * 0 HiLoCS */ -#define E752X_DRAM_SCRB_ADD 0xA8 /* DRAM first uncorrectable scrub memory */ +#define E752X_DRAM_SCRB_ADD 0xA8 /* DRAM 1st uncorrectable scrub mem */ /* error address register (32b) */ /* * 31 Reserved - * 30:2 CE address (64 byte block 34:6) + * 30:2 CE address (64 byte block 34:6 * 1 Reserved * 0 HiLoCS */ @@ -394,9 +395,12 @@ static void do_process_ded_retry(struct mem_ctl_info *mci, u16 error, struct e752x_pvt *pvt = (struct e752x_pvt *)mci->pvt_info; error_1b = retry_add; - page = error_1b >> (PAGE_SHIFT - 4); /* convert the addr to 4k page */ - row = pvt->mc_symmetric ? ((page >> 1) & 3) : /* chip select are bits 14 & 13 */ + page = error_1b >> (PAGE_SHIFT - 4); /* convert the addr to 4k page */ + + /* chip select are bits 14 & 13 */ + row = pvt->mc_symmetric ? ((page >> 1) & 3) : edac_mc_find_csrow_by_page(mci, page); + e752x_mc_printk(mci, KERN_WARNING, "CE page 0x%lx, row %d : Memory read retry\n", (long unsigned int)page, row); @@ -422,12 +426,21 @@ static inline void process_threshold_ce(struct mem_ctl_info *mci, u16 error, } static char *global_message[11] = { - "PCI Express C1", "PCI Express C", "PCI Express B1", - "PCI Express B", "PCI Express A1", "PCI Express A", - "DMA Controler", "HUB or NS Interface", "System Bus", - "DRAM Controler", "Internal Buffer" + "PCI Express C1", + "PCI Express C", + "PCI Express B1", + "PCI Express B", + "PCI Express A1", + "PCI Express A", + "DMA Controller", + "HUB or NS Interface", + "System Bus", + "DRAM Controller", /* 9th entry */ + "Internal Buffer" }; +#define DRAM_ENTRY 9 + static char *fatal_message[2] = { "Non-Fatal ", "Fatal " }; static void do_global_error(int fatal, u32 errors) @@ -435,9 +448,16 @@ static void do_global_error(int fatal, u32 errors) int i; for (i = 0; i < 11; i++) { - if (errors & (1 << i)) - e752x_printk(KERN_WARNING, "%sError %s\n", - fatal_message[fatal], global_message[i]); + if (errors & (1 << i)) { + /* If the error is from DRAM Controller OR + * we are to report ALL errors, then + * report the error + */ + if ((i == DRAM_ENTRY) || report_non_memory_errors) + e752x_printk(KERN_WARNING, "%sError %s\n", + fatal_message[fatal], + global_message[i]); + } } } @@ -1021,7 +1041,7 @@ static int e752x_get_devs(struct pci_dev *pdev, int dev_idx, struct pci_dev *dev; pvt->bridge_ck = pci_get_device(PCI_VENDOR_ID_INTEL, - pvt->dev_info->err_dev, pvt->bridge_ck); + pvt->dev_info->err_dev, pvt->bridge_ck); if (pvt->bridge_ck == NULL) pvt->bridge_ck = pci_scan_single_device(pdev->bus, @@ -1034,8 +1054,9 @@ static int e752x_get_devs(struct pci_dev *pdev, int dev_idx, return 1; } - dev = pci_get_device(PCI_VENDOR_ID_INTEL, e752x_devs[dev_idx].ctl_dev, - NULL); + dev = pci_get_device(PCI_VENDOR_ID_INTEL, + e752x_devs[dev_idx].ctl_dev, + NULL); if (dev == NULL) goto fail; @@ -1316,7 +1337,8 @@ MODULE_DESCRIPTION("MC support for Intel e752x/3100 memory controllers"); module_param(force_function_unhide, int, 0444); MODULE_PARM_DESC(force_function_unhide, "if BIOS sets Dev0:Fun1 up as hidden:" - " 1=force unhide and hope BIOS doesn't fight driver for Dev0:Fun1 access"); + " 1=force unhide and hope BIOS doesn't fight driver for " + "Dev0:Fun1 access"); module_param(edac_op_state, int, 0444); MODULE_PARM_DESC(edac_op_state, "EDAC Error Reporting state: 0=Poll,1=NMI"); @@ -1324,3 +1346,6 @@ MODULE_PARM_DESC(edac_op_state, "EDAC Error Reporting state: 0=Poll,1=NMI"); module_param(sysbus_parity, int, 0444); MODULE_PARM_DESC(sysbus_parity, "0=disable system bus parity checking," " 1=enable system bus parity checking, default=auto-detect"); +module_param(report_non_memory_errors, int, 0644); +MODULE_PARM_DESC(report_non_memory_errors, "0=disable non-memory error " + "reporting, 1=enable non-memory error reporting"); diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c index 021d187..ad218fe 100644 --- a/drivers/edac/edac_mc_sysfs.c +++ b/drivers/edac/edac_mc_sysfs.c @@ -44,6 +44,25 @@ int edac_mc_get_poll_msec(void) return edac_mc_poll_msec; } +static int edac_set_poll_msec(const char *val, struct kernel_param *kp) +{ + long l; + int ret; + + if (!val) + return -EINVAL; + + ret = strict_strtol(val, 0, &l); + if (ret == -EINVAL || ((int)l != l)) + return -EINVAL; + *((int *)kp->arg) = l; + + /* notify edac_mc engine to reset the poll period */ + edac_mc_reset_delay_period(l); + + return 0; +} + /* Parameter declarations for above */ module_param(edac_mc_panic_on_ue, int, 0644); MODULE_PARM_DESC(edac_mc_panic_on_ue, "Panic on uncorrected error: 0=off 1=on"); @@ -53,7 +72,8 @@ MODULE_PARM_DESC(edac_mc_log_ue, module_param(edac_mc_log_ce, int, 0644); MODULE_PARM_DESC(edac_mc_log_ce, "Log correctable error to console: 0=off 1=on"); -module_param(edac_mc_poll_msec, int, 0644); +module_param_call(edac_mc_poll_msec, edac_set_poll_msec, param_get_int, + &edac_mc_poll_msec, 0644); MODULE_PARM_DESC(edac_mc_poll_msec, "Polling period in milliseconds"); /* @@ -103,16 +123,6 @@ static const char *edac_caps[] = { -/* - * /sys/devices/system/edac/mc; - * data structures and methods - */ -static ssize_t memctrl_int_show(void *ptr, char *buffer) -{ - int *value = (int *)ptr; - return sprintf(buffer, "%u\n", *value); -} - static ssize_t memctrl_int_store(void *ptr, const char *buffer, size_t count) { int *value = (int *)ptr; @@ -123,23 +133,6 @@ static ssize_t memctrl_int_store(void *ptr, const char *buffer, size_t count) return count; } -/* - * mc poll_msec time value - */ -static ssize_t poll_msec_int_store(void *ptr, const char *buffer, size_t count) -{ - int *value = (int *)ptr; - - if (isdigit(*buffer)) { - *value = simple_strtoul(buffer, NULL, 0); - - /* notify edac_mc engine to reset the poll period */ - edac_mc_reset_delay_period(*value); - } - - return count; -} - /* EDAC sysfs CSROW data structures and methods */ @@ -185,7 +178,11 @@ static ssize_t csrow_edac_mode_show(struct csrow_info *csrow, char *data, static ssize_t channel_dimm_label_show(struct csrow_info *csrow, char *data, int channel) { - return snprintf(data, EDAC_MC_LABEL_LEN, "%s", + /* if field has not been initialized, there is nothing to send */ + if (!csrow->channels[channel].label[0]) + return 0; + + return snprintf(data, EDAC_MC_LABEL_LEN, "%s\n", csrow->channels[channel].label); } @@ -649,98 +646,10 @@ static struct kobj_type ktype_mci = { .default_attrs = (struct attribute **)mci_attr, }; -/* show/store, tables, etc for the MC kset */ - - -struct memctrl_dev_attribute { - struct attribute attr; - void *value; - ssize_t(*show) (void *, char *); - ssize_t(*store) (void *, const char *, size_t); -}; - -/* Set of show/store abstract level functions for memory control object */ -static ssize_t memctrl_dev_show(struct kobject *kobj, - struct attribute *attr, char *buffer) -{ - struct memctrl_dev_attribute *memctrl_dev; - memctrl_dev = (struct memctrl_dev_attribute *)attr; - - if (memctrl_dev->show) - return memctrl_dev->show(memctrl_dev->value, buffer); - - return -EIO; -} - -static ssize_t memctrl_dev_store(struct kobject *kobj, struct attribute *attr, - const char *buffer, size_t count) -{ - struct memctrl_dev_attribute *memctrl_dev; - memctrl_dev = (struct memctrl_dev_attribute *)attr; - - if (memctrl_dev->store) - return memctrl_dev->store(memctrl_dev->value, buffer, count); - - return -EIO; -} - -static struct sysfs_ops memctrlfs_ops = { - .show = memctrl_dev_show, - .store = memctrl_dev_store -}; - -#define MEMCTRL_ATTR(_name, _mode, _show, _store) \ -static struct memctrl_dev_attribute attr_##_name = { \ - .attr = {.name = __stringify(_name), .mode = _mode }, \ - .value = &_name, \ - .show = _show, \ - .store = _store, \ -}; - -#define MEMCTRL_STRING_ATTR(_name, _data, _mode, _show, _store) \ -static struct memctrl_dev_attribute attr_##_name = { \ - .attr = {.name = __stringify(_name), .mode = _mode }, \ - .value = _data, \ - .show = _show, \ - .store = _store, \ -}; - -/* csrow<id> control files */ -MEMCTRL_ATTR(edac_mc_panic_on_ue, - S_IRUGO | S_IWUSR, memctrl_int_show, memctrl_int_store); - -MEMCTRL_ATTR(edac_mc_log_ue, - S_IRUGO | S_IWUSR, memctrl_int_show, memctrl_int_store); - -MEMCTRL_ATTR(edac_mc_log_ce, - S_IRUGO | S_IWUSR, memctrl_int_show, memctrl_int_store); - -MEMCTRL_ATTR(edac_mc_poll_msec, - S_IRUGO | S_IWUSR, memctrl_int_show, poll_msec_int_store); - -/* Base Attributes of the memory ECC object */ -static struct memctrl_dev_attribute *memctrl_attr[] = { - &attr_edac_mc_panic_on_ue, - &attr_edac_mc_log_ue, - &attr_edac_mc_log_ce, - &attr_edac_mc_poll_msec, - NULL, -}; - - -/* the ktype for the mc_kset internal kobj */ -static struct kobj_type ktype_mc_set_attribs = { - .sysfs_ops = &memctrlfs_ops, - .default_attrs = (struct attribute **)memctrl_attr, -}; - /* EDAC memory controller sysfs kset: * /sys/devices/system/edac/mc */ -static struct kset mc_kset = { - .kobj = {.ktype = &ktype_mc_set_attribs }, -}; - +static struct kset *mc_kset; /* * edac_mc_register_sysfs_main_kobj @@ -771,7 +680,7 @@ int edac_mc_register_sysfs_main_kobj(struct mem_ctl_info *mci) } /* this instance become part of the mc_kset */ - kobj_mci->kset = &mc_kset; + kobj_mci->kset = mc_kset; /* register the mc<id> kobject to the mc_kset */ err = kobject_init_and_add(kobj_mci, &ktype_mci, NULL, @@ -1001,12 +910,9 @@ int edac_sysfs_setup_mc_kset(void) } /* Init the MC's kobject */ - kobject_set_name(&mc_kset.kobj, "mc"); - mc_kset.kobj.parent = &edac_class->kset.kobj; - - /* register the mc_kset */ - err = kset_register(&mc_kset); - if (err) { + mc_kset = kset_create_and_add("mc", NULL, &edac_class->kset.kobj); + if (!mc_kset) { + err = -ENOMEM; debugf1("%s() Failed to register '.../edac/mc'\n", __func__); goto fail_out; } @@ -1028,6 +934,6 @@ fail_out: */ void edac_sysfs_teardown_mc_kset(void) { - kset_unregister(&mc_kset); + kset_unregister(mc_kset); } diff --git a/drivers/edac/edac_pci_sysfs.c b/drivers/edac/edac_pci_sysfs.c index 2c1fa1b..5c153dc 100644 --- a/drivers/edac/edac_pci_sysfs.c +++ b/drivers/edac/edac_pci_sysfs.c @@ -28,7 +28,7 @@ static int edac_pci_poll_msec = 1000; /* one second workq period */ static atomic_t pci_parity_count = ATOMIC_INIT(0); static atomic_t pci_nonparity_count = ATOMIC_INIT(0); -static struct kobject edac_pci_top_main_kobj; +static struct kobject *edac_pci_top_main_kobj; static atomic_t edac_pci_sysfs_refcount = ATOMIC_INIT(0); /* getter functions for the data variables */ @@ -83,7 +83,7 @@ static void edac_pci_instance_release(struct kobject *kobj) pci = to_instance(kobj); /* decrement reference count on top main kobj */ - kobject_put(&edac_pci_top_main_kobj); + kobject_put(edac_pci_top_main_kobj); kfree(pci); /* Free the control struct */ } @@ -166,7 +166,7 @@ static int edac_pci_create_instance_kobj(struct edac_pci_ctl_info *pci, int idx) * track the number of PCI instances we have, and thus nest * properly on keeping the module loaded */ - main_kobj = kobject_get(&edac_pci_top_main_kobj); + main_kobj = kobject_get(edac_pci_top_main_kobj); if (!main_kobj) { err = -ENODEV; goto error_out; @@ -174,11 +174,11 @@ static int edac_pci_create_instance_kobj(struct edac_pci_ctl_info *pci, int idx) /* And now register this new kobject under the main kobj */ err = kobject_init_and_add(&pci->kobj, &ktype_pci_instance, - &edac_pci_top_main_kobj, "pci%d", idx); + edac_pci_top_main_kobj, "pci%d", idx); if (err != 0) { debugf2("%s() failed to register instance pci%d\n", __func__, idx); - kobject_put(&edac_pci_top_main_kobj); + kobject_put(edac_pci_top_main_kobj); goto error_out; } @@ -316,9 +316,10 @@ static struct edac_pci_dev_attribute *edac_pci_attr[] = { */ static void edac_pci_release_main_kobj(struct kobject *kobj) { - debugf0("%s() here to module_put(THIS_MODULE)\n", __func__); + kfree(kobj); + /* last reference to top EDAC PCI kobject has been removed, * NOW release our ref count on the core module */ @@ -369,8 +370,16 @@ static int edac_pci_main_kobj_setup(void) goto decrement_count_fail; } + edac_pci_top_main_kobj = kzalloc(sizeof(struct kobject), GFP_KERNEL); + if (!edac_pci_top_main_kobj) { + debugf1("Failed to allocate\n"); + err = -ENOMEM; + goto kzalloc_fail; + } + /* Instanstiate the pci object */ - err = kobject_init_and_add(&edac_pci_top_main_kobj, &ktype_edac_pci_main_kobj, + err = kobject_init_and_add(edac_pci_top_main_kobj, + &ktype_edac_pci_main_kobj, &edac_class->kset.kobj, "pci"); if (err) { debugf1("Failed to register '.../edac/pci'\n"); @@ -381,13 +390,16 @@ static int edac_pci_main_kobj_setup(void) * for EDAC PCI, then edac_pci_main_kobj_teardown() * must be used, for resources to be cleaned up properly */ - kobject_uevent(&edac_pci_top_main_kobj, KOBJ_ADD); + kobject_uevent(edac_pci_top_main_kobj, KOBJ_ADD); debugf1("Registered '.../edac/pci' kobject\n"); return 0; /* Error unwind statck */ kobject_init_and_add_fail: + kfree(edac_pci_top_main_kobj); + +kzalloc_fail: module_put(THIS_MODULE); decrement_count_fail: @@ -414,7 +426,7 @@ static void edac_pci_main_kobj_teardown(void) if (atomic_dec_return(&edac_pci_sysfs_refcount) == 0) { debugf0("%s() called kobject_put on main kobj\n", __func__); - kobject_put(&edac_pci_top_main_kobj); + kobject_put(edac_pci_top_main_kobj); } } diff --git a/drivers/edac/i5100_edac.c b/drivers/edac/i5100_edac.c new file mode 100644 index 0000000..22db05a --- /dev/null +++ b/drivers/edac/i5100_edac.c @@ -0,0 +1,981 @@ +/* + * Intel 5100 Memory Controllers kernel module + * + * This file may be distributed under the terms of the + * GNU General Public License. + * + * This module is based on the following document: + * + * Intel 5100X Chipset Memory Controller Hub (MCH) - Datasheet + * http://download.intel.com/design/chipsets/datashts/318378.pdf + * + */ +#include <linux/module.h> +#include <linux/init.h> +#include <linux/pci.h> +#include <linux/pci_ids.h> +#include <linux/slab.h> +#include <linux/edac.h> +#include <linux/delay.h> +#include <linux/mmzone.h> + +#include "edac_core.h" + +/* register addresses */ + +/* device 16, func 1 */ +#define I5100_MC 0x40 /* Memory Control Register */ +#define I5100_MS 0x44 /* Memory Status Register */ +#define I5100_SPDDATA 0x48 /* Serial Presence Detect Status Reg */ +#define I5100_SPDCMD 0x4c /* Serial Presence Detect Command Reg */ +#define I5100_TOLM 0x6c /* Top of Low Memory */ +#define I5100_MIR0 0x80 /* Memory Interleave Range 0 */ +#define I5100_MIR1 0x84 /* Memory Interleave Range 1 */ +#define I5100_AMIR_0 0x8c /* Adjusted Memory Interleave Range 0 */ +#define I5100_AMIR_1 0x90 /* Adjusted Memory Interleave Range 1 */ +#define I5100_FERR_NF_MEM 0xa0 /* MC First Non Fatal Errors */ +#define I5100_FERR_NF_MEM_M16ERR_MASK (1 << 16) +#define I5100_FERR_NF_MEM_M15ERR_MASK (1 << 15) +#define I5100_FERR_NF_MEM_M14ERR_MASK (1 << 14) +#define I5100_FERR_NF_MEM_M12ERR_MASK (1 << 12) +#define I5100_FERR_NF_MEM_M11ERR_MASK (1 << 11) +#define I5100_FERR_NF_MEM_M10ERR_MASK (1 << 10) +#define I5100_FERR_NF_MEM_M6ERR_MASK (1 << 6) +#define I5100_FERR_NF_MEM_M5ERR_MASK (1 << 5) +#define I5100_FERR_NF_MEM_M4ERR_MASK (1 << 4) +#define I5100_FERR_NF_MEM_M1ERR_MASK 1 +#define I5100_FERR_NF_MEM_ANY_MASK \ + (I5100_FERR_NF_MEM_M16ERR_MASK | \ + I5100_FERR_NF_MEM_M15ERR_MASK | \ + I5100_FERR_NF_MEM_M14ERR_MASK | \ + I5100_FERR_NF_MEM_M12ERR_MASK | \ + I5100_FERR_NF_MEM_M11ERR_MASK | \ + I5100_FERR_NF_MEM_M10ERR_MASK | \ + I5100_FERR_NF_MEM_M6ERR_MASK | \ + I5100_FERR_NF_MEM_M5ERR_MASK | \ + I5100_FERR_NF_MEM_M4ERR_MASK | \ + I5100_FERR_NF_MEM_M1ERR_MASK) +#define I5100_NERR_NF_MEM 0xa4 /* MC Next Non-Fatal Errors */ +#define I5100_EMASK_MEM 0xa8 /* MC Error Mask Register */ + +/* device 21 and 22, func 0 */ +#define I5100_MTR_0 0x154 /* Memory Technology Registers 0-3 */ +#define I5100_DMIR 0x15c /* DIMM Interleave Range */ +#define I5100_VALIDLOG 0x18c /* Valid Log Markers */ +#define I5100_NRECMEMA 0x190 /* Non-Recoverable Memory Error Log Reg A */ +#define I5100_NRECMEMB 0x194 /* Non-Recoverable Memory Error Log Reg B */ +#define I5100_REDMEMA 0x198 /* Recoverable Memory Data Error Log Reg A */ +#define I5100_REDMEMB 0x19c /* Recoverable Memory Data Error Log Reg B */ +#define I5100_RECMEMA 0x1a0 /* Recoverable Memory Error Log Reg A */ +#define I5100_RECMEMB 0x1a4 /* Recoverable Memory Error Log Reg B */ +#define I5100_MTR_4 0x1b0 /* Memory Technology Registers 4,5 */ + +/* bit field accessors */ + +static inline u32 i5100_mc_errdeten(u32 mc) +{ + return mc >> 5 & 1; +} + +static inline u16 i5100_spddata_rdo(u16 a) +{ + return a >> 15 & 1; +} + +static inline u16 i5100_spddata_sbe(u16 a) +{ + return a >> 13 & 1; +} + +static inline u16 i5100_spddata_busy(u16 a) +{ + return a >> 12 & 1; +} + +static inline u16 i5100_spddata_data(u16 a) +{ + return a & ((1 << 8) - 1); +} + +static inline u32 i5100_spdcmd_create(u32 dti, u32 ckovrd, u32 sa, u32 ba, + u32 data, u32 cmd) +{ + return ((dti & ((1 << 4) - 1)) << 28) | + ((ckovrd & 1) << 27) | + ((sa & ((1 << 3) - 1)) << 24) | + ((ba & ((1 << 8) - 1)) << 16) | + ((data & ((1 << 8) - 1)) << 8) | + (cmd & 1); +} + +static inline u16 i5100_tolm_tolm(u16 a) +{ + return a >> 12 & ((1 << 4) - 1); +} + +static inline u16 i5100_mir_limit(u16 a) +{ + return a >> 4 & ((1 << 12) - 1); +} + +static inline u16 i5100_mir_way1(u16 a) +{ + return a >> 1 & 1; +} + +static inline u16 i5100_mir_way0(u16 a) +{ + return a & 1; +} + +static inline u32 i5100_ferr_nf_mem_chan_indx(u32 a) +{ + return a >> 28 & 1; +} + +static inline u32 i5100_ferr_nf_mem_any(u32 a) +{ + return a & I5100_FERR_NF_MEM_ANY_MASK; +} + +static inline u32 i5100_nerr_nf_mem_any(u32 a) +{ + return i5100_ferr_nf_mem_any(a); +} + +static inline u32 i5100_dmir_limit(u32 a) +{ + return a >> 16 & ((1 << 11) - 1); +} + +static inline u32 i5100_dmir_rank(u32 a, u32 i) +{ + return a >> (4 * i) & ((1 << 2) - 1); +} + +static inline u16 i5100_mtr_present(u16 a) +{ + return a >> 10 & 1; +} + +static inline u16 i5100_mtr_ethrottle(u16 a) +{ + return a >> 9 & 1; +} + +static inline u16 i5100_mtr_width(u16 a) +{ + return a >> 8 & 1; +} + +static inline u16 i5100_mtr_numbank(u16 a) +{ + return a >> 6 & 1; +} + +static inline u16 i5100_mtr_numrow(u16 a) +{ + return a >> 2 & ((1 << 2) - 1); +} + +static inline u16 i5100_mtr_numcol(u16 a) +{ + return a & ((1 << 2) - 1); +} + + +static inline u32 i5100_validlog_redmemvalid(u32 a) +{ + return a >> 2 & 1; +} + +static inline u32 i5100_validlog_recmemvalid(u32 a) +{ + return a >> 1 & 1; +} + +static inline u32 i5100_validlog_nrecmemvalid(u32 a) +{ + return a & 1; +} + +static inline u32 i5100_nrecmema_merr(u32 a) +{ + return a >> 15 & ((1 << 5) - 1); +} + +static inline u32 i5100_nrecmema_bank(u32 a) +{ + return a >> 12 & ((1 << 3) - 1); +} + +static inline u32 i5100_nrecmema_rank(u32 a) +{ + return a >> 8 & ((1 << 3) - 1); +} + +static inline u32 i5100_nrecmema_dm_buf_id(u32 a) +{ + return a & ((1 << 8) - 1); +} + +static inline u32 i5100_nrecmemb_cas(u32 a) +{ + return a >> 16 & ((1 << 13) - 1); +} + +static inline u32 i5100_nrecmemb_ras(u32 a) +{ + return a & ((1 << 16) - 1); +} + +static inline u32 i5100_redmemb_ecc_locator(u32 a) +{ + return a & ((1 << 18) - 1); +} + +static inline u32 i5100_recmema_merr(u32 a) +{ + return i5100_nrecmema_merr(a); +} + +static inline u32 i5100_recmema_bank(u32 a) +{ + return i5100_nrecmema_bank(a); +} + +static inline u32 i5100_recmema_rank(u32 a) +{ + return i5100_nrecmema_rank(a); +} + +static inline u32 i5100_recmema_dm_buf_id(u32 a) +{ + return i5100_nrecmema_dm_buf_id(a); +} + +static inline u32 i5100_recmemb_cas(u32 a) +{ + return i5100_nrecmemb_cas(a); +} + +static inline u32 i5100_recmemb_ras(u32 a) +{ + return i5100_nrecmemb_ras(a); +} + +/* some generic limits */ +#define I5100_MAX_RANKS_PER_CTLR 6 +#define I5100_MAX_CTLRS 2 +#define I5100_MAX_RANKS_PER_DIMM 4 +#define I5100_DIMM_ADDR_LINES (6 - 3) /* 64 bits / 8 bits per byte */ +#define I5100_MAX_DIMM_SLOTS_PER_CTLR 4 +#define I5100_MAX_RANK_INTERLEAVE 4 +#define I5100_MAX_DMIRS 5 + +struct i5100_priv { + /* ranks on each dimm -- 0 maps to not present -- obtained via SPD */ + int dimm_numrank[I5100_MAX_CTLRS][I5100_MAX_DIMM_SLOTS_PER_CTLR]; + + /* + * mainboard chip select map -- maps i5100 chip selects to + * DIMM slot chip selects. In the case of only 4 ranks per + * controller, the mapping is fairly obvious but not unique. + * we map -1 -> NC and assume both controllers use the same + * map... + * + */ + int dimm_csmap[I5100_MAX_DIMM_SLOTS_PER_CTLR][I5100_MAX_RANKS_PER_DIMM]; + + /* memory interleave range */ + struct { + u64 limit; + unsigned way[2]; + } mir[I5100_MAX_CTLRS]; + + /* adjusted memory interleave range register */ + unsigned amir[I5100_MAX_CTLRS]; + + /* dimm interleave range */ + struct { + unsigned rank[I5100_MAX_RANK_INTERLEAVE]; + u64 limit; + } dmir[I5100_MAX_CTLRS][I5100_MAX_DMIRS]; + + /* memory technology registers... */ + struct { + unsigned present; /* 0 or 1 */ + unsigned ethrottle; /* 0 or 1 */ + unsigned width; /* 4 or 8 bits */ + unsigned numbank; /* 2 or 3 lines */ + unsigned numrow; /* 13 .. 16 lines */ + unsigned numcol; /* 11 .. 12 lines */ + } mtr[I5100_MAX_CTLRS][I5100_MAX_RANKS_PER_CTLR]; + + u64 tolm; /* top of low memory in bytes */ + unsigned ranksperctlr; /* number of ranks per controller */ + + struct pci_dev *mc; /* device 16 func 1 */ + struct pci_dev *ch0mm; /* device 21 func 0 */ + struct pci_dev *ch1mm; /* device 22 func 0 */ +}; + +/* map a rank/ctlr to a slot number on the mainboard */ +static int i5100_rank_to_slot(const struct mem_ctl_info *mci, + int ctlr, int rank) +{ + const struct i5100_priv *priv = mci->pvt_info; + int i; + + for (i = 0; i < I5100_MAX_DIMM_SLOTS_PER_CTLR; i++) { + int j; + const int numrank = priv->dimm_numrank[ctlr][i]; + + for (j = 0; j < numrank; j++) + if (priv->dimm_csmap[i][j] == rank) + return i * 2 + ctlr; + } + + return -1; +} + +static const char *i5100_err_msg(unsigned err) +{ + static const char *merrs[] = { + "unknown", /* 0 */ + "uncorrectable data ECC on replay", /* 1 */ + "unknown", /* 2 */ + "unknown", /* 3 */ + "aliased uncorrectable demand data ECC", /* 4 */ + "aliased uncorrectable spare-copy data ECC", /* 5 */ + "aliased uncorrectable patrol data ECC", /* 6 */ + "unknown", /* 7 */ + "unknown", /* 8 */ + "unknown", /* 9 */ + "non-aliased uncorrectable demand data ECC", /* 10 */ + "non-aliased uncorrectable spare-copy data ECC", /* 11 */ + "non-aliased uncorrectable patrol data ECC", /* 12 */ + "unknown", /* 13 */ + "correctable demand data ECC", /* 14 */ + "correctable spare-copy data ECC", /* 15 */ + "correctable patrol data ECC", /* 16 */ + "unknown", /* 17 */ + "SPD protocol error", /* 18 */ + "unknown", /* 19 */ + "spare copy initiated", /* 20 */ + "spare copy completed", /* 21 */ + }; + unsigned i; + + for (i = 0; i < ARRAY_SIZE(merrs); i++) + if (1 << i & err) + return merrs[i]; + + return "none"; +} + +/* convert csrow index into a rank (per controller -- 0..5) */ +static int i5100_csrow_to_rank(const struct mem_ctl_info *mci, int csrow) +{ + const struct i5100_priv *priv = mci->pvt_info; + + return csrow % priv->ranksperctlr; +} + +/* convert csrow index into a controller (0..1) */ +static int i5100_csrow_to_cntlr(const struct mem_ctl_info *mci, int csrow) +{ + const struct i5100_priv *priv = mci->pvt_info; + + return csrow / priv->ranksperctlr; +} + +static unsigned i5100_rank_to_csrow(const struct mem_ctl_info *mci, + int ctlr, int rank) +{ + const struct i5100_priv *priv = mci->pvt_info; + + return ctlr * priv->ranksperctlr + rank; +} + +static void i5100_handle_ce(struct mem_ctl_info *mci, + int ctlr, + unsigned bank, + unsigned rank, + unsigned long syndrome, + unsigned cas, + unsigned ras, + const char *msg) +{ + const int csrow = i5100_rank_to_csrow(mci, ctlr, rank); + + printk(KERN_ERR + "CE ctlr %d, bank %u, rank %u, syndrome 0x%lx, " + "cas %u, ras %u, csrow %u, label \"%s\": %s\n", + ctlr, bank, rank, syndrome, cas, ras, + csrow, mci->csrows[csrow].channels[0].label, msg); + + mci->ce_count++; + mci->csrows[csrow].ce_count++; + mci->csrows[csrow].channels[0].ce_count++; +} + +static void i5100_handle_ue(struct mem_ctl_info *mci, + int ctlr, + unsigned bank, + unsigned rank, + unsigned long syndrome, + unsigned cas, + unsigned ras, + const char *msg) +{ + const int csrow = i5100_rank_to_csrow(mci, ctlr, rank); + + printk(KERN_ERR + "UE ctlr %d, bank %u, rank %u, syndrome 0x%lx, " + "cas %u, ras %u, csrow %u, label \"%s\": %s\n", + ctlr, bank, rank, syndrome, cas, ras, + csrow, mci->csrows[csrow].channels[0].label, msg); + + mci->ue_count++; + mci->csrows[csrow].ue_count++; +} + +static void i5100_read_log(struct mem_ctl_info *mci, int ctlr, + u32 ferr, u32 nerr) +{ + struct i5100_priv *priv = mci->pvt_info; + struct pci_dev *pdev = (ctlr) ? priv->ch1mm : priv->ch0mm; + u32 dw; + u32 dw2; + unsigned syndrome = 0; + unsigned ecc_loc = 0; + unsigned merr; + unsigned bank; + unsigned rank; + unsigned cas; + unsigned ras; + + pci_read_config_dword(pdev, I5100_VALIDLOG, &dw); + + if (i5100_validlog_redmemvalid(dw)) { + pci_read_config_dword(pdev, I5100_REDMEMA, &dw2); + syndrome = dw2; + pci_read_config_dword(pdev, I5100_REDMEMB, &dw2); + ecc_loc = i5100_redmemb_ecc_locator(dw2); + } + + if (i5100_validlog_recmemvalid(dw)) { + const char *msg; + + pci_read_config_dword(pdev, I5100_RECMEMA, &dw2); + merr = i5100_recmema_merr(dw2); + bank = i5100_recmema_bank(dw2); + rank = i5100_recmema_rank(dw2); + + pci_read_config_dword(pdev, I5100_RECMEMB, &dw2); + cas = i5100_recmemb_cas(dw2); + ras = i5100_recmemb_ras(dw2); + + /* FIXME: not really sure if this is what merr is... + */ + if (!merr) + msg = i5100_err_msg(ferr); + else + msg = i5100_err_msg(nerr); + + i5100_handle_ce(mci, ctlr, bank, rank, syndrome, cas, ras, msg); + } + + if (i5100_validlog_nrecmemvalid(dw)) { + const char *msg; + + pci_read_config_dword(pdev, I5100_NRECMEMA, &dw2); + merr = i5100_nrecmema_merr(dw2); + bank = i5100_nrecmema_bank(dw2); + rank = i5100_nrecmema_rank(dw2); + + pci_read_config_dword(pdev, I5100_NRECMEMB, &dw2); + cas = i5100_nrecmemb_cas(dw2); + ras = i5100_nrecmemb_ras(dw2); + + /* FIXME: not really sure if this is what merr is... + */ + if (!merr) + msg = i5100_err_msg(ferr); + else + msg = i5100_err_msg(nerr); + + i5100_handle_ue(mci, ctlr, bank, rank, syndrome, cas, ras, msg); + } + + pci_write_config_dword(pdev, I5100_VALIDLOG, dw); +} + +static void i5100_check_error(struct mem_ctl_info *mci) +{ + struct i5100_priv *priv = mci->pvt_info; + u32 dw; + + + pci_read_config_dword(priv->mc, I5100_FERR_NF_MEM, &dw); + if (i5100_ferr_nf_mem_any(dw)) { + u32 dw2; + + pci_read_config_dword(priv->mc, I5100_NERR_NF_MEM, &dw2); + if (dw2) + pci_write_config_dword(priv->mc, I5100_NERR_NF_MEM, + dw2); + pci_write_config_dword(priv->mc, I5100_FERR_NF_MEM, dw); + + i5100_read_log(mci, i5100_ferr_nf_mem_chan_indx(dw), + i5100_ferr_nf_mem_any(dw), + i5100_nerr_nf_mem_any(dw2)); + } +} + +static struct pci_dev *pci_get_device_func(unsigned vendor, + unsigned device, + unsigned func) +{ + struct pci_dev *ret = NULL; + + while (1) { + ret = pci_get_device(vendor, device, ret); + + if (!ret) + break; + + if (PCI_FUNC(ret->devfn) == func) + break; + } + + return ret; +} + +static unsigned long __devinit i5100_npages(struct mem_ctl_info *mci, + int csrow) +{ + struct i5100_priv *priv = mci->pvt_info; + const unsigned ctlr_rank = i5100_csrow_to_rank(mci, csrow); + const unsigned ctlr = i5100_csrow_to_cntlr(mci, csrow); + unsigned addr_lines; + + /* dimm present? */ + if (!priv->mtr[ctlr][ctlr_rank].present) + return 0ULL; + + addr_lines = + I5100_DIMM_ADDR_LINES + + priv->mtr[ctlr][ctlr_rank].numcol + + priv->mtr[ctlr][ctlr_rank].numrow + + priv->mtr[ctlr][ctlr_rank].numbank; + + return (unsigned long) + ((unsigned long long) (1ULL << addr_lines) / PAGE_SIZE); +} + +static void __devinit i5100_init_mtr(struct mem_ctl_info *mci) +{ + struct i5100_priv *priv = mci->pvt_info; + struct pci_dev *mms[2] = { priv->ch0mm, priv->ch1mm }; + int i; + + for (i = 0; i < I5100_MAX_CTLRS; i++) { + int j; + struct pci_dev *pdev = mms[i]; + + for (j = 0; j < I5100_MAX_RANKS_PER_CTLR; j++) { + const unsigned addr = + (j < 4) ? I5100_MTR_0 + j * 2 : + I5100_MTR_4 + (j - 4) * 2; + u16 w; + + pci_read_config_word(pdev, addr, &w); + + priv->mtr[i][j].present = i5100_mtr_present(w); + priv->mtr[i][j].ethrottle = i5100_mtr_ethrottle(w); + priv->mtr[i][j].width = 4 + 4 * i5100_mtr_width(w); + priv->mtr[i][j].numbank = 2 + i5100_mtr_numbank(w); + priv->mtr[i][j].numrow = 13 + i5100_mtr_numrow(w); + priv->mtr[i][j].numcol = 10 + i5100_mtr_numcol(w); + } + } +} + +/* + * FIXME: make this into a real i2c adapter (so that dimm-decode + * will work)? + */ +static int i5100_read_spd_byte(const struct mem_ctl_info *mci, + u8 ch, u8 slot, u8 addr, u8 *byte) +{ + struct i5100_priv *priv = mci->pvt_info; + u16 w; + unsigned long et; + + pci_read_config_word(priv->mc, I5100_SPDDATA, &w); + if (i5100_spddata_busy(w)) + return -1; + + pci_write_config_dword(priv->mc, I5100_SPDCMD, + i5100_spdcmd_create(0xa, 1, ch * 4 + slot, addr, + 0, 0)); + + /* wait up to 100ms */ + et = jiffies + HZ / 10; + udelay(100); + while (1) { + pci_read_config_word(priv->mc, I5100_SPDDATA, &w); + if (!i5100_spddata_busy(w)) + break; + udelay(100); + } + + if (!i5100_spddata_rdo(w) || i5100_spddata_sbe(w)) + return -1; + + *byte = i5100_spddata_data(w); + + return 0; +} + +/* + * fill dimm chip select map + * + * FIXME: + * o only valid for 4 ranks per controller + * o not the only way to may chip selects to dimm slots + * o investigate if there is some way to obtain this map from the bios + */ +static void __devinit i5100_init_dimm_csmap(struct mem_ctl_info *mci) +{ + struct i5100_priv *priv = mci->pvt_info; + int i; + + WARN_ON(priv->ranksperctlr != 4); + + for (i = 0; i < I5100_MAX_DIMM_SLOTS_PER_CTLR; i++) { + int j; + + for (j = 0; j < I5100_MAX_RANKS_PER_DIMM; j++) + priv->dimm_csmap[i][j] = -1; /* default NC */ + } + + /* only 2 chip selects per slot... */ + priv->dimm_csmap[0][0] = 0; + priv->dimm_csmap[0][1] = 3; + priv->dimm_csmap[1][0] = 1; + priv->dimm_csmap[1][1] = 2; + priv->dimm_csmap[2][0] = 2; + priv->dimm_csmap[3][0] = 3; +} + +static void __devinit i5100_init_dimm_layout(struct pci_dev *pdev, + struct mem_ctl_info *mci) +{ + struct i5100_priv *priv = mci->pvt_info; + int i; + + for (i = 0; i < I5100_MAX_CTLRS; i++) { + int j; + + for (j = 0; j < I5100_MAX_DIMM_SLOTS_PER_CTLR; j++) { + u8 rank; + + if (i5100_read_spd_byte(mci, i, j, 5, &rank) < 0) + priv->dimm_numrank[i][j] = 0; + else + priv->dimm_numrank[i][j] = (rank & 3) + 1; + } + } + + i5100_init_dimm_csmap(mci); +} + +static void __devinit i5100_init_interleaving(struct pci_dev *pdev, + struct mem_ctl_info *mci) +{ + u16 w; + u32 dw; + struct i5100_priv *priv = mci->pvt_info; + struct pci_dev *mms[2] = { priv->ch0mm, priv->ch1mm }; + int i; + + pci_read_config_word(pdev, I5100_TOLM, &w); + priv->tolm = (u64) i5100_tolm_tolm(w) * 256 * 1024 * 1024; + + pci_read_config_word(pdev, I5100_MIR0, &w); + priv->mir[0].limit = (u64) i5100_mir_limit(w) << 28; + priv->mir[0].way[1] = i5100_mir_way1(w); + priv->mir[0].way[0] = i5100_mir_way0(w); + + pci_read_config_word(pdev, I5100_MIR1, &w); + priv->mir[1].limit = (u64) i5100_mir_limit(w) << 28; + priv->mir[1].way[1] = i5100_mir_way1(w); + priv->mir[1].way[0] = i5100_mir_way0(w); + + pci_read_config_word(pdev, I5100_AMIR_0, &w); + priv->amir[0] = w; + pci_read_config_word(pdev, I5100_AMIR_1, &w); + priv->amir[1] = w; + + for (i = 0; i < I5100_MAX_CTLRS; i++) { + int j; + + for (j = 0; j < 5; j++) { + int k; + + pci_read_config_dword(mms[i], I5100_DMIR + j * 4, &dw); + + priv->dmir[i][j].limit = + (u64) i5100_dmir_limit(dw) << 28; + for (k = 0; k < I5100_MAX_RANKS_PER_DIMM; k++) + priv->dmir[i][j].rank[k] = + i5100_dmir_rank(dw, k); + } + } + + i5100_init_mtr(mci); +} + +static void __devinit i5100_init_csrows(struct mem_ctl_info *mci) +{ + int i; + unsigned long total_pages = 0UL; + struct i5100_priv *priv = mci->pvt_info; + + for (i = 0; i < mci->nr_csrows; i++) { + const unsigned long npages = i5100_npages(mci, i); + const unsigned cntlr = i5100_csrow_to_cntlr(mci, i); + const unsigned rank = i5100_csrow_to_rank(mci, i); + + if (!npages) + continue; + + /* + * FIXME: these two are totally bogus -- I don't see how to + * map them correctly to this structure... + */ + mci->csrows[i].first_page = total_pages; + mci->csrows[i].last_page = total_pages + npages - 1; + mci->csrows[i].page_mask = 0UL; + + mci->csrows[i].nr_pages = npages; + mci->csrows[i].grain = 32; + mci->csrows[i].csrow_idx = i; + mci->csrows[i].dtype = + (priv->mtr[cntlr][rank].width == 4) ? DEV_X4 : DEV_X8; + mci->csrows[i].ue_count = 0; + mci->csrows[i].ce_count = 0; + mci->csrows[i].mtype = MEM_RDDR2; + mci->csrows[i].edac_mode = EDAC_SECDED; + mci->csrows[i].mci = mci; + mci->csrows[i].nr_channels = 1; + mci->csrows[i].channels[0].chan_idx = 0; + mci->csrows[i].channels[0].ce_count = 0; + mci->csrows[i].channels[0].csrow = mci->csrows + i; + snprintf(mci->csrows[i].channels[0].label, + sizeof(mci->csrows[i].channels[0].label), + "DIMM%u", i5100_rank_to_slot(mci, cntlr, rank)); + + total_pages += npages; + } +} + +static int __devinit i5100_init_one(struct pci_dev *pdev, + const struct pci_device_id *id) +{ + int rc; + struct mem_ctl_info *mci; + struct i5100_priv *priv; + struct pci_dev *ch0mm, *ch1mm; + int ret = 0; + u32 dw; + int ranksperch; + + if (PCI_FUNC(pdev->devfn) != 1) + return -ENODEV; + + rc = pci_enable_device(pdev); + if (rc < 0) { + ret = rc; + goto bail; + } + + /* ECC enabled? */ + pci_read_config_dword(pdev, I5100_MC, &dw); + if (!i5100_mc_errdeten(dw)) { + printk(KERN_INFO "i5100_edac: ECC not enabled.\n"); + ret = -ENODEV; + goto bail_pdev; + } + + /* figure out how many ranks, from strapped state of 48GB_Mode input */ + pci_read_config_dword(pdev, I5100_MS, &dw); + ranksperch = !!(dw & (1 << 8)) * 2 + 4; + + if (ranksperch != 4) { + /* FIXME: get 6 ranks / controller to work - need hw... */ + printk(KERN_INFO "i5100_edac: unsupported configuration.\n"); + ret = -ENODEV; + goto bail_pdev; + } + + /* enable error reporting... */ + pci_read_config_dword(pdev, I5100_EMASK_MEM, &dw); + dw &= ~I5100_FERR_NF_MEM_ANY_MASK; + pci_write_config_dword(pdev, I5100_EMASK_MEM, dw); + + /* device 21, func 0, Channel 0 Memory Map, Error Flag/Mask, etc... */ + ch0mm = pci_get_device_func(PCI_VENDOR_ID_INTEL, + PCI_DEVICE_ID_INTEL_5100_21, 0); + if (!ch0mm) { + ret = -ENODEV; + goto bail_pdev; + } + + rc = pci_enable_device(ch0mm); + if (rc < 0) { + ret = rc; + goto bail_ch0; + } + + /* device 22, func 0, Channel 1 Memory Map, Error Flag/Mask, etc... */ + ch1mm = pci_get_device_func(PCI_VENDOR_ID_INTEL, + PCI_DEVICE_ID_INTEL_5100_22, 0); + if (!ch1mm) { + ret = -ENODEV; + goto bail_disable_ch0; + } + + rc = pci_enable_device(ch1mm); + if (rc < 0) { + ret = rc; + goto bail_ch1; + } + + mci = edac_mc_alloc(sizeof(*priv), ranksperch * 2, 1, 0); + if (!mci) { + ret = -ENOMEM; + goto bail_disable_ch1; + } + + mci->dev = &pdev->dev; + + priv = mci->pvt_info; + priv->ranksperctlr = ranksperch; + priv->mc = pdev; + priv->ch0mm = ch0mm; + priv->ch1mm = ch1mm; + + i5100_init_dimm_layout(pdev, mci); + i5100_init_interleaving(pdev, mci); + + mci->mtype_cap = MEM_FLAG_FB_DDR2; + mci->edac_ctl_cap = EDAC_FLAG_SECDED; + mci->edac_cap = EDAC_FLAG_SECDED; + mci->mod_name = "i5100_edac.c"; + mci->mod_ver = "not versioned"; + mci->ctl_name = "i5100"; + mci->dev_name = pci_name(pdev); + mci->ctl_page_to_phys = NULL; + + mci->edac_check = i5100_check_error; + + i5100_init_csrows(mci); + + /* this strange construction seems to be in every driver, dunno why */ + switch (edac_op_state) { + case EDAC_OPSTATE_POLL: + case EDAC_OPSTATE_NMI: + break; + default: + edac_op_state = EDAC_OPSTATE_POLL; + break; + } + + if (edac_mc_add_mc(mci)) { + ret = -ENODEV; + goto bail_mc; + } + + return ret; + +bail_mc: + edac_mc_free(mci); + +bail_disable_ch1: + pci_disable_device(ch1mm); + +bail_ch1: + pci_dev_put(ch1mm); + +bail_disable_ch0: + pci_disable_device(ch0mm); + +bail_ch0: + pci_dev_put(ch0mm); + +bail_pdev: + pci_disable_device(pdev); + +bail: + return ret; +} + +static void __devexit i5100_remove_one(struct pci_dev *pdev) +{ + struct mem_ctl_info *mci; + struct i5100_priv *priv; + + mci = edac_mc_del_mc(&pdev->dev); + + if (!mci) + return; + + priv = mci->pvt_info; + pci_disable_device(pdev); + pci_disable_device(priv->ch0mm); + pci_disable_device(priv->ch1mm); + pci_dev_put(priv->ch0mm); + pci_dev_put(priv->ch1mm); + + edac_mc_free(mci); +} + +static const struct pci_device_id i5100_pci_tbl[] __devinitdata = { + /* Device 16, Function 0, Channel 0 Memory Map, Error Flag/Mask, ... */ + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_5100_16) }, + { 0, } +}; +MODULE_DEVICE_TABLE(pci, i5100_pci_tbl); + +static struct pci_driver i5100_driver = { + .name = KBUILD_BASENAME, + .probe = i5100_init_one, + .remove = __devexit_p(i5100_remove_one), + .id_table = i5100_pci_tbl, +}; + +static int __init i5100_init(void) +{ + int pci_rc; + + pci_rc = pci_register_driver(&i5100_driver); + + return (pci_rc < 0) ? pci_rc : 0; +} + +static void __exit i5100_exit(void) +{ + pci_unregister_driver(&i5100_driver); +} + +module_init(i5100_init); +module_exit(i5100_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR + ("Arthur Jones <ajones@riverbed.com>"); +MODULE_DESCRIPTION("MC Driver for Intel I5100 memory controllers"); diff --git a/drivers/edac/mpc85xx_edac.c b/drivers/edac/mpc85xx_edac.c index d49361bf..2265d9c 100644 --- a/drivers/edac/mpc85xx_edac.c +++ b/drivers/edac/mpc85xx_edac.c @@ -195,14 +195,15 @@ static irqreturn_t mpc85xx_pci_isr(int irq, void *dev_id) return IRQ_HANDLED; } -static int __devinit mpc85xx_pci_err_probe(struct platform_device *pdev) +static int __devinit mpc85xx_pci_err_probe(struct of_device *op, + const struct of_device_id *match) { struct edac_pci_ctl_info *pci; struct mpc85xx_pci_pdata *pdata; - struct resource *r; + struct resource r; int res = 0; - if (!devres_open_group(&pdev->dev, mpc85xx_pci_err_probe, GFP_KERNEL)) + if (!devres_open_group(&op->dev, mpc85xx_pci_err_probe, GFP_KERNEL)) return -ENOMEM; pci = edac_pci_alloc_ctl_info(sizeof(*pdata), "mpc85xx_pci_err"); @@ -212,34 +213,37 @@ static int __devinit mpc85xx_pci_err_probe(struct platform_device *pdev) pdata = pci->pvt_info; pdata->name = "mpc85xx_pci_err"; pdata->irq = NO_IRQ; - platform_set_drvdata(pdev, pci); - pci->dev = &pdev->dev; + dev_set_drvdata(&op->dev, pci); + pci->dev = &op->dev; pci->mod_name = EDAC_MOD_STR; pci->ctl_name = pdata->name; - pci->dev_name = pdev->dev.bus_id; + pci->dev_name = op->dev.bus_id; if (edac_op_state == EDAC_OPSTATE_POLL) pci->edac_check = mpc85xx_pci_check; pdata->edac_idx = edac_pci_idx++; - r = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!r) { + res = of_address_to_resource(op->node, 0, &r); + if (res) { printk(KERN_ERR "%s: Unable to get resource for " "PCI err regs\n", __func__); goto err; } - if (!devm_request_mem_region(&pdev->dev, r->start, - r->end - r->start + 1, pdata->name)) { + /* we only need the error registers */ + r.start += 0xe00; + + if (!devm_request_mem_region(&op->dev, r.start, + r.end - r.start + 1, pdata->name)) { printk(KERN_ERR "%s: Error while requesting mem region\n", __func__); res = -EBUSY; goto err; } - pdata->pci_vbase = devm_ioremap(&pdev->dev, r->start, - r->end - r->start + 1); + pdata->pci_vbase = devm_ioremap(&op->dev, r.start, + r.end - r.start + 1); if (!pdata->pci_vbase) { printk(KERN_ERR "%s: Unable to setup PCI err regs\n", __func__); res = -ENOMEM; @@ -266,14 +270,15 @@ static int __devinit mpc85xx_pci_err_probe(struct platform_device *pdev) } if (edac_op_state == EDAC_OPSTATE_INT) { - pdata->irq = platform_get_irq(pdev, 0); - res = devm_request_irq(&pdev->dev, pdata->irq, + pdata->irq = irq_of_parse_and_map(op->node, 0); + res = devm_request_irq(&op->dev, pdata->irq, mpc85xx_pci_isr, IRQF_DISABLED, "[EDAC] PCI err", pci); if (res < 0) { printk(KERN_ERR "%s: Unable to requiest irq %d for " "MPC85xx PCI err\n", __func__, pdata->irq); + irq_dispose_mapping(pdata->irq); res = -ENODEV; goto err2; } @@ -282,23 +287,23 @@ static int __devinit mpc85xx_pci_err_probe(struct platform_device *pdev) pdata->irq); } - devres_remove_group(&pdev->dev, mpc85xx_pci_err_probe); + devres_remove_group(&op->dev, mpc85xx_pci_err_probe); debugf3("%s(): success\n", __func__); printk(KERN_INFO EDAC_MOD_STR " PCI err registered\n"); return 0; err2: - edac_pci_del_device(&pdev->dev); + edac_pci_del_device(&op->dev); err: edac_pci_free_ctl_info(pci); - devres_release_group(&pdev->dev, mpc85xx_pci_err_probe); + devres_release_group(&op->dev, mpc85xx_pci_err_probe); return res; } -static int mpc85xx_pci_err_remove(struct platform_device *pdev) +static int mpc85xx_pci_err_remove(struct of_device *op) { - struct edac_pci_ctl_info *pci = platform_get_drvdata(pdev); + struct edac_pci_ctl_info *pci = dev_get_drvdata(&op->dev); struct mpc85xx_pci_pdata *pdata = pci->pvt_info; debugf0("%s()\n", __func__); @@ -318,12 +323,26 @@ static int mpc85xx_pci_err_remove(struct platform_device *pdev) return 0; } -static struct platform_driver mpc85xx_pci_err_driver = { +static struct of_device_id mpc85xx_pci_err_of_match[] = { + { + .compatible = "fsl,mpc8540-pcix", + }, + { + .compatible = "fsl,mpc8540-pci", + }, + {}, +}; + +static struct of_platform_driver mpc85xx_pci_err_driver = { + .owner = THIS_MODULE, + .name = "mpc85xx_pci_err", + .match_table = mpc85xx_pci_err_of_match, .probe = mpc85xx_pci_err_probe, .remove = __devexit_p(mpc85xx_pci_err_remove), .driver = { - .name = "mpc85xx_pci_err", - } + .name = "mpc85xx_pci_err", + .owner = THIS_MODULE, + }, }; #endif /* CONFIG_PCI */ @@ -1002,7 +1021,7 @@ static int __init mpc85xx_mc_init(void) printk(KERN_WARNING EDAC_MOD_STR "L2 fails to register\n"); #ifdef CONFIG_PCI - res = platform_driver_register(&mpc85xx_pci_err_driver); + res = of_register_platform_driver(&mpc85xx_pci_err_driver); if (res) printk(KERN_WARNING EDAC_MOD_STR "PCI fails to register\n"); #endif @@ -1025,7 +1044,7 @@ static void __exit mpc85xx_mc_exit(void) { mtspr(SPRN_HID1, orig_hid1); #ifdef CONFIG_PCI - platform_driver_unregister(&mpc85xx_pci_err_driver); + of_unregister_platform_driver(&mpc85xx_pci_err_driver); #endif of_unregister_platform_driver(&mpc85xx_l2_err_driver); of_unregister_platform_driver(&mpc85xx_mc_err_driver); diff --git a/drivers/edac/mv64x60_edac.c b/drivers/edac/mv64x60_edac.c index bf071f1..083ce8d 100644 --- a/drivers/edac/mv64x60_edac.c +++ b/drivers/edac/mv64x60_edac.c @@ -71,6 +71,35 @@ static irqreturn_t mv64x60_pci_isr(int irq, void *dev_id) return IRQ_HANDLED; } +/* + * Bit 0 of MV64x60_PCIx_ERR_MASK does not exist on the 64360 and because of + * errata FEr-#11 and FEr-##16 for the 64460, it should be 0 on that chip as + * well. IOW, don't set bit 0. + */ + +/* Erratum FEr PCI-#16: clear bit 0 of PCI SERRn Mask reg. */ +static int __init mv64x60_pci_fixup(struct platform_device *pdev) +{ + struct resource *r; + void __iomem *pci_serr; + + r = platform_get_resource(pdev, IORESOURCE_MEM, 1); + if (!r) { + printk(KERN_ERR "%s: Unable to get resource for " + "PCI err regs\n", __func__); + return -ENOENT; + } + + pci_serr = ioremap(r->start, r->end - r->start + 1); + if (!pci_serr) + return -ENOMEM; + + out_le32(pci_serr, in_le32(pci_serr) & ~0x1); + iounmap(pci_serr); + + return 0; +} + static int __devinit mv64x60_pci_err_probe(struct platform_device *pdev) { struct edac_pci_ctl_info *pci; @@ -128,6 +157,12 @@ static int __devinit mv64x60_pci_err_probe(struct platform_device *pdev) goto err; } + res = mv64x60_pci_fixup(pdev); + if (res < 0) { + printk(KERN_ERR "%s: PCI fixup failed\n", __func__); + goto err; + } + out_le32(pdata->pci_vbase + MV64X60_PCI_ERROR_CAUSE, 0); out_le32(pdata->pci_vbase + MV64X60_PCI_ERROR_MASK, 0); out_le32(pdata->pci_vbase + MV64X60_PCI_ERROR_MASK, @@ -612,7 +647,7 @@ static void get_total_mem(struct mv64x60_mc_pdata *pdata) if (!np) return; - reg = get_property(np, "reg", NULL); + reg = of_get_property(np, "reg", NULL); pdata->total_mem = reg[1]; } diff --git a/drivers/firewire/fw-iso.c b/drivers/firewire/fw-iso.c index bcbe794..e14c03d 100644 --- a/drivers/firewire/fw-iso.c +++ b/drivers/firewire/fw-iso.c @@ -50,7 +50,7 @@ fw_iso_buffer_init(struct fw_iso_buffer *buffer, struct fw_card *card, address = dma_map_page(card->device, buffer->pages[i], 0, PAGE_SIZE, direction); - if (dma_mapping_error(address)) { + if (dma_mapping_error(card->device, address)) { __free_page(buffer->pages[i]); goto out_pages; } diff --git a/drivers/firewire/fw-ohci.c b/drivers/firewire/fw-ohci.c index 333b125..566672e 100644 --- a/drivers/firewire/fw-ohci.c +++ b/drivers/firewire/fw-ohci.c @@ -953,7 +953,7 @@ at_context_queue_packet(struct context *ctx, struct fw_packet *packet) payload_bus = dma_map_single(ohci->card.device, packet->payload, packet->payload_length, DMA_TO_DEVICE); - if (dma_mapping_error(payload_bus)) { + if (dma_mapping_error(ohci->card.device, payload_bus)) { packet->ack = RCODE_SEND_ERROR; return -1; } diff --git a/drivers/firewire/fw-sbp2.c b/drivers/firewire/fw-sbp2.c index 53fc5a6..aaff50e 100644 --- a/drivers/firewire/fw-sbp2.c +++ b/drivers/firewire/fw-sbp2.c @@ -543,7 +543,7 @@ sbp2_send_management_orb(struct sbp2_logical_unit *lu, int node_id, orb->response_bus = dma_map_single(device->card->device, &orb->response, sizeof(orb->response), DMA_FROM_DEVICE); - if (dma_mapping_error(orb->response_bus)) + if (dma_mapping_error(device->card->device, orb->response_bus)) goto fail_mapping_response; orb->request.response.high = 0; @@ -577,7 +577,7 @@ sbp2_send_management_orb(struct sbp2_logical_unit *lu, int node_id, orb->base.request_bus = dma_map_single(device->card->device, &orb->request, sizeof(orb->request), DMA_TO_DEVICE); - if (dma_mapping_error(orb->base.request_bus)) + if (dma_mapping_error(device->card->device, orb->base.request_bus)) goto fail_mapping_request; sbp2_send_orb(&orb->base, lu, node_id, generation, @@ -1424,7 +1424,7 @@ sbp2_map_scatterlist(struct sbp2_command_orb *orb, struct fw_device *device, orb->page_table_bus = dma_map_single(device->card->device, orb->page_table, sizeof(orb->page_table), DMA_TO_DEVICE); - if (dma_mapping_error(orb->page_table_bus)) + if (dma_mapping_error(device->card->device, orb->page_table_bus)) goto fail_page_table; /* @@ -1509,7 +1509,7 @@ static int sbp2_scsi_queuecommand(struct scsi_cmnd *cmd, scsi_done_fn_t done) orb->base.request_bus = dma_map_single(device->card->device, &orb->request, sizeof(orb->request), DMA_TO_DEVICE); - if (dma_mapping_error(orb->base.request_bus)) + if (dma_mapping_error(device->card->device, orb->base.request_bus)) goto out; sbp2_send_orb(&orb->base, lu, lu->tgt->node_id, lu->generation, diff --git a/drivers/firmware/dcdbas.c b/drivers/firmware/dcdbas.c index 0b624e9..c66817e 100644 --- a/drivers/firmware/dcdbas.c +++ b/drivers/firmware/dcdbas.c @@ -152,20 +152,11 @@ static ssize_t smi_data_read(struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t pos, size_t count) { - size_t max_read; ssize_t ret; mutex_lock(&smi_data_lock); - - if (pos >= smi_data_buf_size) { - ret = 0; - goto out; - } - - max_read = smi_data_buf_size - pos; - ret = min(max_read, count); - memcpy(buf, smi_data_buf + pos, ret); -out: + ret = memory_read_from_buffer(buf, count, &pos, smi_data_buf, + smi_data_buf_size); mutex_unlock(&smi_data_lock); return ret; } diff --git a/drivers/firmware/dell_rbu.c b/drivers/firmware/dell_rbu.c index 7430e21..13946eb 100644 --- a/drivers/firmware/dell_rbu.c +++ b/drivers/firmware/dell_rbu.c @@ -507,11 +507,6 @@ static ssize_t read_packet_data(char *buffer, loff_t pos, size_t count) static ssize_t read_rbu_mono_data(char *buffer, loff_t pos, size_t count) { - unsigned char *ptemp = NULL; - size_t bytes_left = 0; - size_t data_length = 0; - ssize_t ret_count = 0; - /* check to see if we have something to return */ if ((rbu_data.image_update_buffer == NULL) || (rbu_data.bios_image_size == 0)) { @@ -519,28 +514,11 @@ static ssize_t read_rbu_mono_data(char *buffer, loff_t pos, size_t count) "bios_image_size %lu\n", rbu_data.image_update_buffer, rbu_data.bios_image_size); - ret_count = -ENOMEM; - goto read_rbu_data_exit; - } - - if (pos > rbu_data.bios_image_size) { - ret_count = 0; - goto read_rbu_data_exit; + return -ENOMEM; } - bytes_left = rbu_data.bios_image_size - pos; - data_length = min(bytes_left, count); - - ptemp = rbu_data.image_update_buffer; - memcpy(buffer, (ptemp + pos), data_length); - - if ((pos + count) > rbu_data.bios_image_size) - /* this was the last copy */ - ret_count = bytes_left; - else - ret_count = count; - read_rbu_data_exit: - return ret_count; + return memory_read_from_buffer(buffer, count, &pos, + rbu_data.image_update_buffer, rbu_data.bios_image_size); } static ssize_t read_rbu_data(struct kobject *kobj, diff --git a/drivers/firmware/memmap.c b/drivers/firmware/memmap.c index e23399c..001622e 100644 --- a/drivers/firmware/memmap.c +++ b/drivers/firmware/memmap.c @@ -153,12 +153,14 @@ int __init firmware_map_add_early(resource_size_t start, resource_size_t end, static ssize_t start_show(struct firmware_map_entry *entry, char *buf) { - return snprintf(buf, PAGE_SIZE, "0x%llx\n", entry->start); + return snprintf(buf, PAGE_SIZE, "0x%llx\n", + (unsigned long long)entry->start); } static ssize_t end_show(struct firmware_map_entry *entry, char *buf) { - return snprintf(buf, PAGE_SIZE, "0x%llx\n", entry->end); + return snprintf(buf, PAGE_SIZE, "0x%llx\n", + (unsigned long long)entry->end); } static ssize_t type_show(struct firmware_map_entry *entry, char *buf) diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index fced190..dbd42d6 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -2,15 +2,40 @@ # GPIO infrastructure and expanders # -config HAVE_GPIO_LIB +config ARCH_WANT_OPTIONAL_GPIOLIB bool help + Select this config option from the architecture Kconfig, if + it is possible to use gpiolib on the architecture, but let the + user decide whether to actually build it or not. + Select this instead of ARCH_REQUIRE_GPIOLIB, if your architecture does + not depend on GPIOs being available, but rather let the user + decide whether he needs it or not. + +config ARCH_REQUIRE_GPIOLIB + bool + select GPIOLIB + help Platforms select gpiolib if they use this infrastructure for all their GPIOs, usually starting with ones integrated into SOC processors. + Selecting this from the architecture code will cause the gpiolib + code to always get built in. + + + +menuconfig GPIOLIB + bool "GPIO Support" + depends on ARCH_WANT_OPTIONAL_GPIOLIB || ARCH_REQUIRE_GPIOLIB + select GENERIC_GPIO + help + This enables GPIO support through the generic GPIO library. + You only need to enable this, if you also want to enable + one or more of the GPIO expansion card drivers below. -menu "GPIO Support" - depends on HAVE_GPIO_LIB + If unsure, say N. + +if GPIOLIB config DEBUG_GPIO bool "Debug GPIO calls" @@ -23,10 +48,44 @@ config DEBUG_GPIO slower. The diagnostics help catch the type of setup errors that are most common when setting up new platforms or boards. +config GPIO_SYSFS + bool "/sys/class/gpio/... (sysfs interface)" + depends on SYSFS && EXPERIMENTAL + help + Say Y here to add a sysfs interface for GPIOs. + + This is mostly useful to work around omissions in a system's + kernel support. Those are common in custom and semicustom + hardware assembled using standard kernels with a minimum of + custom patches. In those cases, userspace code may import + a given GPIO from the kernel, if no kernel driver requested it. + + Kernel drivers may also request that a particular GPIO be + exported to userspace; this can be useful when debugging. + # put expanders in the right section, in alphabetical order comment "I2C GPIO expanders:" +config GPIO_MAX732X + tristate "MAX7319, MAX7320-7327 I2C Port Expanders" + depends on I2C + help + Say yes here to support the MAX7319, MAX7320-7327 series of I2C + Port Expanders. Each IO port on these chips has a fixed role of + Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain + Input and Output (designed by 'P'). The combinations are listed + below: + + 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), + max7322 (4I4O), max7323 (4P4O) + + 16 bits: max7324 (8I8O), max7325 (8P8O), + max7326 (4I12O), max7327 (4P12O) + + Board setup code must specify the model to use, and the start + number for these GPIOs. + config GPIO_PCA953X tristate "PCA953x, PCA955x, and MAX7310 I/O ports" depends on I2C @@ -68,6 +127,24 @@ config GPIO_PCF857X This driver provides an in-kernel interface to those GPIOs using platform-neutral GPIO calls. +comment "PCI GPIO expanders:" + +config GPIO_BT8XX + tristate "BT8XX GPIO abuser" + depends on PCI && VIDEO_BT848=n + help + The BT8xx frame grabber chip has 24 GPIO pins than can be abused + as a cheap PCI GPIO card. + + This chip can be found on Miro, Hauppauge and STB TV-cards. + + The card needs to be physically altered for using it as a + GPIO card. For more information on how to build a GPIO card + from a BT8xx TV card, see the documentation file at + Documentation/bt8xxgpio.txt + + If unsure, say N. + comment "SPI GPIO expanders:" config GPIO_MAX7301 @@ -83,4 +160,4 @@ config GPIO_MCP23S08 SPI driver for Microchip MCP23S08 I/O expander. This provides a GPIO interface supporting inputs and outputs. -endmenu +endif diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile index 16e796d..01b4bbd 100644 --- a/drivers/gpio/Makefile +++ b/drivers/gpio/Makefile @@ -2,9 +2,11 @@ ccflags-$(CONFIG_DEBUG_GPIO) += -DDEBUG -obj-$(CONFIG_HAVE_GPIO_LIB) += gpiolib.o +obj-$(CONFIG_GPIOLIB) += gpiolib.o obj-$(CONFIG_GPIO_MAX7301) += max7301.o +obj-$(CONFIG_GPIO_MAX732X) += max732x.o obj-$(CONFIG_GPIO_MCP23S08) += mcp23s08.o obj-$(CONFIG_GPIO_PCA953X) += pca953x.o obj-$(CONFIG_GPIO_PCF857X) += pcf857x.o +obj-$(CONFIG_GPIO_BT8XX) += bt8xxgpio.o diff --git a/drivers/gpio/bt8xxgpio.c b/drivers/gpio/bt8xxgpio.c new file mode 100644 index 0000000..7a11682 --- /dev/null +++ b/drivers/gpio/bt8xxgpio.c @@ -0,0 +1,348 @@ +/* + + bt8xx GPIO abuser + + Copyright (C) 2008 Michael Buesch <mb@bu3sch.de> + + Please do _only_ contact the people listed _above_ with issues related to this driver. + All the other people listed below are not related to this driver. Their names + are only here, because this driver is derived from the bt848 driver. + + + Derived from the bt848 driver: + + Copyright (C) 1996,97,98 Ralph Metzler + & Marcus Metzler + (c) 1999-2002 Gerd Knorr + + some v4l2 code lines are taken from Justin's bttv2 driver which is + (c) 2000 Justin Schoeman + + V4L1 removal from: + (c) 2005-2006 Nickolay V. Shmyrev + + Fixes to be fully V4L2 compliant by + (c) 2006 Mauro Carvalho Chehab + + Cropping and overscan support + Copyright (C) 2005, 2006 Michael H. Schimek + Sponsored by OPQ Systems AB + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/spinlock.h> + +#include <asm/gpio.h> + +/* Steal the hardware definitions from the bttv driver. */ +#include "../media/video/bt8xx/bt848.h" + + +#define BT8XXGPIO_NR_GPIOS 24 /* We have 24 GPIO pins */ + + +struct bt8xxgpio { + spinlock_t lock; + + void __iomem *mmio; + struct pci_dev *pdev; + struct gpio_chip gpio; + +#ifdef CONFIG_PM + u32 saved_outen; + u32 saved_data; +#endif +}; + +#define bgwrite(dat, adr) writel((dat), bg->mmio+(adr)) +#define bgread(adr) readl(bg->mmio+(adr)) + + +static int modparam_gpiobase = -1/* dynamic */; +module_param_named(gpiobase, modparam_gpiobase, int, 0444); +MODULE_PARM_DESC(gpiobase, "The GPIO number base. -1 means dynamic, which is the default."); + + +static int bt8xxgpio_gpio_direction_input(struct gpio_chip *gpio, unsigned nr) +{ + struct bt8xxgpio *bg = container_of(gpio, struct bt8xxgpio, gpio); + unsigned long flags; + u32 outen, data; + + spin_lock_irqsave(&bg->lock, flags); + + data = bgread(BT848_GPIO_DATA); + data &= ~(1 << nr); + bgwrite(data, BT848_GPIO_DATA); + + outen = bgread(BT848_GPIO_OUT_EN); + outen &= ~(1 << nr); + bgwrite(outen, BT848_GPIO_OUT_EN); + + spin_unlock_irqrestore(&bg->lock, flags); + + return 0; +} + +static int bt8xxgpio_gpio_get(struct gpio_chip *gpio, unsigned nr) +{ + struct bt8xxgpio *bg = container_of(gpio, struct bt8xxgpio, gpio); + unsigned long flags; + u32 val; + + spin_lock_irqsave(&bg->lock, flags); + val = bgread(BT848_GPIO_DATA); + spin_unlock_irqrestore(&bg->lock, flags); + + return !!(val & (1 << nr)); +} + +static int bt8xxgpio_gpio_direction_output(struct gpio_chip *gpio, + unsigned nr, int val) +{ + struct bt8xxgpio *bg = container_of(gpio, struct bt8xxgpio, gpio); + unsigned long flags; + u32 outen, data; + + spin_lock_irqsave(&bg->lock, flags); + + outen = bgread(BT848_GPIO_OUT_EN); + outen |= (1 << nr); + bgwrite(outen, BT848_GPIO_OUT_EN); + + data = bgread(BT848_GPIO_DATA); + if (val) + data |= (1 << nr); + else + data &= ~(1 << nr); + bgwrite(data, BT848_GPIO_DATA); + + spin_unlock_irqrestore(&bg->lock, flags); + + return 0; +} + +static void bt8xxgpio_gpio_set(struct gpio_chip *gpio, + unsigned nr, int val) +{ + struct bt8xxgpio *bg = container_of(gpio, struct bt8xxgpio, gpio); + unsigned long flags; + u32 data; + + spin_lock_irqsave(&bg->lock, flags); + + data = bgread(BT848_GPIO_DATA); + if (val) + data |= (1 << nr); + else + data &= ~(1 << nr); + bgwrite(data, BT848_GPIO_DATA); + + spin_unlock_irqrestore(&bg->lock, flags); +} + +static void bt8xxgpio_gpio_setup(struct bt8xxgpio *bg) +{ + struct gpio_chip *c = &bg->gpio; + + c->label = bg->pdev->dev.bus_id; + c->owner = THIS_MODULE; + c->direction_input = bt8xxgpio_gpio_direction_input; + c->get = bt8xxgpio_gpio_get; + c->direction_output = bt8xxgpio_gpio_direction_output; + c->set = bt8xxgpio_gpio_set; + c->dbg_show = NULL; + c->base = modparam_gpiobase; + c->ngpio = BT8XXGPIO_NR_GPIOS; + c->can_sleep = 0; +} + +static int bt8xxgpio_probe(struct pci_dev *dev, + const struct pci_device_id *pci_id) +{ + struct bt8xxgpio *bg; + int err; + + bg = kzalloc(sizeof(*bg), GFP_KERNEL); + if (!bg) + return -ENOMEM; + + bg->pdev = dev; + spin_lock_init(&bg->lock); + + err = pci_enable_device(dev); + if (err) { + printk(KERN_ERR "bt8xxgpio: Can't enable device.\n"); + goto err_freebg; + } + if (!request_mem_region(pci_resource_start(dev, 0), + pci_resource_len(dev, 0), + "bt8xxgpio")) { + printk(KERN_WARNING "bt8xxgpio: Can't request iomem (0x%llx).\n", + (unsigned long long)pci_resource_start(dev, 0)); + err = -EBUSY; + goto err_disable; + } + pci_set_master(dev); + pci_set_drvdata(dev, bg); + + bg->mmio = ioremap(pci_resource_start(dev, 0), 0x1000); + if (!bg->mmio) { + printk(KERN_ERR "bt8xxgpio: ioremap() failed\n"); + err = -EIO; + goto err_release_mem; + } + + /* Disable interrupts */ + bgwrite(0, BT848_INT_MASK); + + /* gpio init */ + bgwrite(0, BT848_GPIO_DMA_CTL); + bgwrite(0, BT848_GPIO_REG_INP); + bgwrite(0, BT848_GPIO_OUT_EN); + + bt8xxgpio_gpio_setup(bg); + err = gpiochip_add(&bg->gpio); + if (err) { + printk(KERN_ERR "bt8xxgpio: Failed to register GPIOs\n"); + goto err_release_mem; + } + + printk(KERN_INFO "bt8xxgpio: Abusing BT8xx card for GPIOs %d to %d\n", + bg->gpio.base, bg->gpio.base + BT8XXGPIO_NR_GPIOS - 1); + + return 0; + +err_release_mem: + release_mem_region(pci_resource_start(dev, 0), + pci_resource_len(dev, 0)); + pci_set_drvdata(dev, NULL); +err_disable: + pci_disable_device(dev); +err_freebg: + kfree(bg); + + return err; +} + +static void bt8xxgpio_remove(struct pci_dev *pdev) +{ + struct bt8xxgpio *bg = pci_get_drvdata(pdev); + + gpiochip_remove(&bg->gpio); + + bgwrite(0, BT848_INT_MASK); + bgwrite(~0x0, BT848_INT_STAT); + bgwrite(0x0, BT848_GPIO_OUT_EN); + + iounmap(bg->mmio); + release_mem_region(pci_resource_start(pdev, 0), + pci_resource_len(pdev, 0)); + pci_disable_device(pdev); + + pci_set_drvdata(pdev, NULL); + kfree(bg); +} + +#ifdef CONFIG_PM +static int bt8xxgpio_suspend(struct pci_dev *pdev, pm_message_t state) +{ + struct bt8xxgpio *bg = pci_get_drvdata(pdev); + unsigned long flags; + + spin_lock_irqsave(&bg->lock, flags); + + bg->saved_outen = bgread(BT848_GPIO_OUT_EN); + bg->saved_data = bgread(BT848_GPIO_DATA); + + bgwrite(0, BT848_INT_MASK); + bgwrite(~0x0, BT848_INT_STAT); + bgwrite(0x0, BT848_GPIO_OUT_EN); + + spin_unlock_irqrestore(&bg->lock, flags); + + pci_save_state(pdev); + pci_disable_device(pdev); + pci_set_power_state(pdev, pci_choose_state(pdev, state)); + + return 0; +} + +static int bt8xxgpio_resume(struct pci_dev *pdev) +{ + struct bt8xxgpio *bg = pci_get_drvdata(pdev); + unsigned long flags; + int err; + + pci_set_power_state(pdev, 0); + err = pci_enable_device(pdev); + if (err) + return err; + pci_restore_state(pdev); + + spin_lock_irqsave(&bg->lock, flags); + + bgwrite(0, BT848_INT_MASK); + bgwrite(0, BT848_GPIO_DMA_CTL); + bgwrite(0, BT848_GPIO_REG_INP); + bgwrite(bg->saved_outen, BT848_GPIO_OUT_EN); + bgwrite(bg->saved_data & bg->saved_outen, + BT848_GPIO_DATA); + + spin_unlock_irqrestore(&bg->lock, flags); + + return 0; +} +#else +#define bt8xxgpio_suspend NULL +#define bt8xxgpio_resume NULL +#endif /* CONFIG_PM */ + +static struct pci_device_id bt8xxgpio_pci_tbl[] = { + { PCI_DEVICE(PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT848) }, + { PCI_DEVICE(PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT849) }, + { PCI_DEVICE(PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT878) }, + { PCI_DEVICE(PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT879) }, + { 0, }, +}; +MODULE_DEVICE_TABLE(pci, bt8xxgpio_pci_tbl); + +static struct pci_driver bt8xxgpio_pci_driver = { + .name = "bt8xxgpio", + .id_table = bt8xxgpio_pci_tbl, + .probe = bt8xxgpio_probe, + .remove = bt8xxgpio_remove, + .suspend = bt8xxgpio_suspend, + .resume = bt8xxgpio_resume, +}; + +static int bt8xxgpio_init(void) +{ + return pci_register_driver(&bt8xxgpio_pci_driver); +} +module_init(bt8xxgpio_init) + +static void bt8xxgpio_exit(void) +{ + pci_unregister_driver(&bt8xxgpio_pci_driver); +} +module_exit(bt8xxgpio_exit) + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Michael Buesch"); +MODULE_DESCRIPTION("Abuse a BT8xx framegrabber card as generic GPIO card"); diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index beaf6b3..8d29405 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -2,8 +2,11 @@ #include <linux/module.h> #include <linux/irq.h> #include <linux/spinlock.h> - -#include <asm/gpio.h> +#include <linux/device.h> +#include <linux/err.h> +#include <linux/debugfs.h> +#include <linux/seq_file.h> +#include <linux/gpio.h> /* Optional implementation infrastructure for GPIO interfaces. @@ -44,6 +47,8 @@ struct gpio_desc { #define FLAG_REQUESTED 0 #define FLAG_IS_OUT 1 #define FLAG_RESERVED 2 +#define FLAG_EXPORT 3 /* protected by sysfs_lock */ +#define FLAG_SYSFS 4 /* exported via /sys/class/gpio/control */ #ifdef CONFIG_DEBUG_FS const char *label; @@ -151,6 +156,482 @@ err: return ret; } +#ifdef CONFIG_GPIO_SYSFS + +/* lock protects against unexport_gpio() being called while + * sysfs files are active. + */ +static DEFINE_MUTEX(sysfs_lock); + +/* + * /sys/class/gpio/gpioN... only for GPIOs that are exported + * /direction + * * MAY BE OMITTED if kernel won't allow direction changes + * * is read/write as "in" or "out" + * * may also be written as "high" or "low", initializing + * output value as specified ("out" implies "low") + * /value + * * always readable, subject to hardware behavior + * * may be writable, as zero/nonzero + * + * REVISIT there will likely be an attribute for configuring async + * notifications, e.g. to specify polling interval or IRQ trigger type + * that would for example trigger a poll() on the "value". + */ + +static ssize_t gpio_direction_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + const struct gpio_desc *desc = dev_get_drvdata(dev); + ssize_t status; + + mutex_lock(&sysfs_lock); + + if (!test_bit(FLAG_EXPORT, &desc->flags)) + status = -EIO; + else + status = sprintf(buf, "%s\n", + test_bit(FLAG_IS_OUT, &desc->flags) + ? "out" : "in"); + + mutex_unlock(&sysfs_lock); + return status; +} + +static ssize_t gpio_direction_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t size) +{ + const struct gpio_desc *desc = dev_get_drvdata(dev); + unsigned gpio = desc - gpio_desc; + ssize_t status; + + mutex_lock(&sysfs_lock); + + if (!test_bit(FLAG_EXPORT, &desc->flags)) + status = -EIO; + else if (sysfs_streq(buf, "high")) + status = gpio_direction_output(gpio, 1); + else if (sysfs_streq(buf, "out") || sysfs_streq(buf, "low")) + status = gpio_direction_output(gpio, 0); + else if (sysfs_streq(buf, "in")) + status = gpio_direction_input(gpio); + else + status = -EINVAL; + + mutex_unlock(&sysfs_lock); + return status ? : size; +} + +static const DEVICE_ATTR(direction, 0644, + gpio_direction_show, gpio_direction_store); + +static ssize_t gpio_value_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + const struct gpio_desc *desc = dev_get_drvdata(dev); + unsigned gpio = desc - gpio_desc; + ssize_t status; + + mutex_lock(&sysfs_lock); + + if (!test_bit(FLAG_EXPORT, &desc->flags)) + status = -EIO; + else + status = sprintf(buf, "%d\n", gpio_get_value_cansleep(gpio)); + + mutex_unlock(&sysfs_lock); + return status; +} + +static ssize_t gpio_value_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t size) +{ + const struct gpio_desc *desc = dev_get_drvdata(dev); + unsigned gpio = desc - gpio_desc; + ssize_t status; + + mutex_lock(&sysfs_lock); + + if (!test_bit(FLAG_EXPORT, &desc->flags)) + status = -EIO; + else if (!test_bit(FLAG_IS_OUT, &desc->flags)) + status = -EPERM; + else { + long value; + + status = strict_strtol(buf, 0, &value); + if (status == 0) { + gpio_set_value_cansleep(gpio, value != 0); + status = size; + } + } + + mutex_unlock(&sysfs_lock); + return status; +} + +static /*const*/ DEVICE_ATTR(value, 0644, + gpio_value_show, gpio_value_store); + +static const struct attribute *gpio_attrs[] = { + &dev_attr_direction.attr, + &dev_attr_value.attr, + NULL, +}; + +static const struct attribute_group gpio_attr_group = { + .attrs = (struct attribute **) gpio_attrs, +}; + +/* + * /sys/class/gpio/gpiochipN/ + * /base ... matching gpio_chip.base (N) + * /label ... matching gpio_chip.label + * /ngpio ... matching gpio_chip.ngpio + */ + +static ssize_t chip_base_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + const struct gpio_chip *chip = dev_get_drvdata(dev); + + return sprintf(buf, "%d\n", chip->base); +} +static DEVICE_ATTR(base, 0444, chip_base_show, NULL); + +static ssize_t chip_label_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + const struct gpio_chip *chip = dev_get_drvdata(dev); + + return sprintf(buf, "%s\n", chip->label ? : ""); +} +static DEVICE_ATTR(label, 0444, chip_label_show, NULL); + +static ssize_t chip_ngpio_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + const struct gpio_chip *chip = dev_get_drvdata(dev); + + return sprintf(buf, "%u\n", chip->ngpio); +} +static DEVICE_ATTR(ngpio, 0444, chip_ngpio_show, NULL); + +static const struct attribute *gpiochip_attrs[] = { + &dev_attr_base.attr, + &dev_attr_label.attr, + &dev_attr_ngpio.attr, + NULL, +}; + +static const struct attribute_group gpiochip_attr_group = { + .attrs = (struct attribute **) gpiochip_attrs, +}; + +/* + * /sys/class/gpio/export ... write-only + * integer N ... number of GPIO to export (full access) + * /sys/class/gpio/unexport ... write-only + * integer N ... number of GPIO to unexport + */ +static ssize_t export_store(struct class *class, const char *buf, size_t len) +{ + long gpio; + int status; + + status = strict_strtol(buf, 0, &gpio); + if (status < 0) + goto done; + + /* No extra locking here; FLAG_SYSFS just signifies that the + * request and export were done by on behalf of userspace, so + * they may be undone on its behalf too. + */ + + status = gpio_request(gpio, "sysfs"); + if (status < 0) + goto done; + + status = gpio_export(gpio, true); + if (status < 0) + gpio_free(gpio); + else + set_bit(FLAG_SYSFS, &gpio_desc[gpio].flags); + +done: + if (status) + pr_debug("%s: status %d\n", __func__, status); + return status ? : len; +} + +static ssize_t unexport_store(struct class *class, const char *buf, size_t len) +{ + long gpio; + int status; + + status = strict_strtol(buf, 0, &gpio); + if (status < 0) + goto done; + + status = -EINVAL; + + /* reject bogus commands (gpio_unexport ignores them) */ + if (!gpio_is_valid(gpio)) + goto done; + + /* No extra locking here; FLAG_SYSFS just signifies that the + * request and export were done by on behalf of userspace, so + * they may be undone on its behalf too. + */ + if (test_and_clear_bit(FLAG_SYSFS, &gpio_desc[gpio].flags)) { + status = 0; + gpio_free(gpio); + } +done: + if (status) + pr_debug("%s: status %d\n", __func__, status); + return status ? : len; +} + +static struct class_attribute gpio_class_attrs[] = { + __ATTR(export, 0200, NULL, export_store), + __ATTR(unexport, 0200, NULL, unexport_store), + __ATTR_NULL, +}; + +static struct class gpio_class = { + .name = "gpio", + .owner = THIS_MODULE, + + .class_attrs = gpio_class_attrs, +}; + + +/** + * gpio_export - export a GPIO through sysfs + * @gpio: gpio to make available, already requested + * @direction_may_change: true if userspace may change gpio direction + * Context: arch_initcall or later + * + * When drivers want to make a GPIO accessible to userspace after they + * have requested it -- perhaps while debugging, or as part of their + * public interface -- they may use this routine. If the GPIO can + * change direction (some can't) and the caller allows it, userspace + * will see "direction" sysfs attribute which may be used to change + * the gpio's direction. A "value" attribute will always be provided. + * + * Returns zero on success, else an error. + */ +int gpio_export(unsigned gpio, bool direction_may_change) +{ + unsigned long flags; + struct gpio_desc *desc; + int status = -EINVAL; + + /* can't export until sysfs is available ... */ + if (!gpio_class.p) { + pr_debug("%s: called too early!\n", __func__); + return -ENOENT; + } + + if (!gpio_is_valid(gpio)) + goto done; + + mutex_lock(&sysfs_lock); + + spin_lock_irqsave(&gpio_lock, flags); + desc = &gpio_desc[gpio]; + if (test_bit(FLAG_REQUESTED, &desc->flags) + && !test_bit(FLAG_EXPORT, &desc->flags)) { + status = 0; + if (!desc->chip->direction_input + || !desc->chip->direction_output) + direction_may_change = false; + } + spin_unlock_irqrestore(&gpio_lock, flags); + + if (status == 0) { + struct device *dev; + + dev = device_create(&gpio_class, desc->chip->dev, MKDEV(0, 0), + desc, "gpio%d", gpio); + if (dev) { + if (direction_may_change) + status = sysfs_create_group(&dev->kobj, + &gpio_attr_group); + else + status = device_create_file(dev, + &dev_attr_value); + if (status != 0) + device_unregister(dev); + } else + status = -ENODEV; + if (status == 0) + set_bit(FLAG_EXPORT, &desc->flags); + } + + mutex_unlock(&sysfs_lock); + +done: + if (status) + pr_debug("%s: gpio%d status %d\n", __func__, gpio, status); + + return status; +} +EXPORT_SYMBOL_GPL(gpio_export); + +static int match_export(struct device *dev, void *data) +{ + return dev_get_drvdata(dev) == data; +} + +/** + * gpio_unexport - reverse effect of gpio_export() + * @gpio: gpio to make unavailable + * + * This is implicit on gpio_free(). + */ +void gpio_unexport(unsigned gpio) +{ + struct gpio_desc *desc; + int status = -EINVAL; + + if (!gpio_is_valid(gpio)) + goto done; + + mutex_lock(&sysfs_lock); + + desc = &gpio_desc[gpio]; + if (test_bit(FLAG_EXPORT, &desc->flags)) { + struct device *dev = NULL; + + dev = class_find_device(&gpio_class, NULL, desc, match_export); + if (dev) { + clear_bit(FLAG_EXPORT, &desc->flags); + put_device(dev); + device_unregister(dev); + status = 0; + } else + status = -ENODEV; + } + + mutex_unlock(&sysfs_lock); +done: + if (status) + pr_debug("%s: gpio%d status %d\n", __func__, gpio, status); +} +EXPORT_SYMBOL_GPL(gpio_unexport); + +static int gpiochip_export(struct gpio_chip *chip) +{ + int status; + struct device *dev; + + /* Many systems register gpio chips for SOC support very early, + * before driver model support is available. In those cases we + * export this later, in gpiolib_sysfs_init() ... here we just + * verify that _some_ field of gpio_class got initialized. + */ + if (!gpio_class.p) + return 0; + + /* use chip->base for the ID; it's already known to be unique */ + mutex_lock(&sysfs_lock); + dev = device_create(&gpio_class, chip->dev, MKDEV(0, 0), chip, + "gpiochip%d", chip->base); + if (dev) { + status = sysfs_create_group(&dev->kobj, + &gpiochip_attr_group); + } else + status = -ENODEV; + chip->exported = (status == 0); + mutex_unlock(&sysfs_lock); + + if (status) { + unsigned long flags; + unsigned gpio; + + spin_lock_irqsave(&gpio_lock, flags); + gpio = chip->base; + while (gpio_desc[gpio].chip == chip) + gpio_desc[gpio++].chip = NULL; + spin_unlock_irqrestore(&gpio_lock, flags); + + pr_debug("%s: chip %s status %d\n", __func__, + chip->label, status); + } + + return status; +} + +static void gpiochip_unexport(struct gpio_chip *chip) +{ + int status; + struct device *dev; + + mutex_lock(&sysfs_lock); + dev = class_find_device(&gpio_class, NULL, chip, match_export); + if (dev) { + put_device(dev); + device_unregister(dev); + chip->exported = 0; + status = 0; + } else + status = -ENODEV; + mutex_unlock(&sysfs_lock); + + if (status) + pr_debug("%s: chip %s status %d\n", __func__, + chip->label, status); +} + +static int __init gpiolib_sysfs_init(void) +{ + int status; + unsigned long flags; + unsigned gpio; + + status = class_register(&gpio_class); + if (status < 0) + return status; + + /* Scan and register the gpio_chips which registered very + * early (e.g. before the class_register above was called). + * + * We run before arch_initcall() so chip->dev nodes can have + * registered, and so arch_initcall() can always gpio_export(). + */ + spin_lock_irqsave(&gpio_lock, flags); + for (gpio = 0; gpio < ARCH_NR_GPIOS; gpio++) { + struct gpio_chip *chip; + + chip = gpio_desc[gpio].chip; + if (!chip || chip->exported) + continue; + + spin_unlock_irqrestore(&gpio_lock, flags); + status = gpiochip_export(chip); + spin_lock_irqsave(&gpio_lock, flags); + } + spin_unlock_irqrestore(&gpio_lock, flags); + + + return status; +} +postcore_initcall(gpiolib_sysfs_init); + +#else +static inline int gpiochip_export(struct gpio_chip *chip) +{ + return 0; +} + +static inline void gpiochip_unexport(struct gpio_chip *chip) +{ +} + +#endif /* CONFIG_GPIO_SYSFS */ + /** * gpiochip_add() - register a gpio_chip * @chip: the chip to register, with chip->base initialized @@ -160,6 +641,11 @@ err: * because the chip->base is invalid or already associated with a * different chip. Otherwise it returns zero as a success code. * + * When gpiochip_add() is called very early during boot, so that GPIOs + * can be freely used, the chip->dev device must be registered before + * the gpio framework's arch_initcall(). Otherwise sysfs initialization + * for GPIOs will fail rudely. + * * If chip->base is negative, this requests dynamic assignment of * a range of valid GPIOs. */ @@ -182,7 +668,7 @@ int gpiochip_add(struct gpio_chip *chip) base = gpiochip_find_base(chip->ngpio); if (base < 0) { status = base; - goto fail_unlock; + goto unlock; } chip->base = base; } @@ -197,12 +683,23 @@ int gpiochip_add(struct gpio_chip *chip) if (status == 0) { for (id = base; id < base + chip->ngpio; id++) { gpio_desc[id].chip = chip; - gpio_desc[id].flags = 0; + + /* REVISIT: most hardware initializes GPIOs as + * inputs (often with pullups enabled) so power + * usage is minimized. Linux code should set the + * gpio direction first thing; but until it does, + * we may expose the wrong direction in sysfs. + */ + gpio_desc[id].flags = !chip->direction_input + ? (1 << FLAG_IS_OUT) + : 0; } } -fail_unlock: +unlock: spin_unlock_irqrestore(&gpio_lock, flags); + if (status == 0) + status = gpiochip_export(chip); fail: /* failures here can mean systems won't boot... */ if (status) @@ -239,6 +736,10 @@ int gpiochip_remove(struct gpio_chip *chip) } spin_unlock_irqrestore(&gpio_lock, flags); + + if (status == 0) + gpiochip_unexport(chip); + return status; } EXPORT_SYMBOL_GPL(gpiochip_remove); @@ -296,6 +797,8 @@ void gpio_free(unsigned gpio) return; } + gpio_unexport(gpio); + spin_lock_irqsave(&gpio_lock, flags); desc = &gpio_desc[gpio]; @@ -534,10 +1037,6 @@ EXPORT_SYMBOL_GPL(gpio_set_value_cansleep); #ifdef CONFIG_DEBUG_FS -#include <linux/debugfs.h> -#include <linux/seq_file.h> - - static void gpiolib_dbg_show(struct seq_file *s, struct gpio_chip *chip) { unsigned i; @@ -614,17 +1113,28 @@ static int gpiolib_show(struct seq_file *s, void *unused) /* REVISIT this isn't locked against gpio_chip removal ... */ for (gpio = 0; gpio_is_valid(gpio); gpio++) { + struct device *dev; + if (chip == gpio_desc[gpio].chip) continue; chip = gpio_desc[gpio].chip; if (!chip) continue; - seq_printf(s, "%sGPIOs %d-%d, %s%s:\n", + seq_printf(s, "%sGPIOs %d-%d", started ? "\n" : "", - chip->base, chip->base + chip->ngpio - 1, - chip->label ? : "generic", - chip->can_sleep ? ", can sleep" : ""); + chip->base, chip->base + chip->ngpio - 1); + dev = chip->dev; + if (dev) + seq_printf(s, ", %s/%s", + dev->bus ? dev->bus->name : "no-bus", + dev->bus_id); + if (chip->label) + seq_printf(s, ", %s", chip->label); + if (chip->can_sleep) + seq_printf(s, ", can sleep"); + seq_printf(s, ":\n"); + started = 1; if (chip->dbg_show) chip->dbg_show(s, chip); diff --git a/drivers/gpio/max732x.c b/drivers/gpio/max732x.c new file mode 100644 index 0000000..b51c813 --- /dev/null +++ b/drivers/gpio/max732x.c @@ -0,0 +1,385 @@ +/* + * max732x.c - I2C Port Expander with 8/16 I/O + * + * Copyright (C) 2007 Marvell International Ltd. + * Copyright (C) 2008 Jack Ren <jack.ren@marvell.com> + * Copyright (C) 2008 Eric Miao <eric.miao@marvell.com> + * + * Derived from drivers/gpio/pca953x.c + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + */ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/string.h> +#include <linux/gpio.h> + +#include <linux/i2c.h> +#include <linux/i2c/max732x.h> + + +/* + * Each port of MAX732x (including MAX7319) falls into one of the + * following three types: + * + * - Push Pull Output + * - Input + * - Open Drain I/O + * + * designated by 'O', 'I' and 'P' individually according to MAXIM's + * datasheets. + * + * There are two groups of I/O ports, each group usually includes + * up to 8 I/O ports, and is accessed by a specific I2C address: + * + * - Group A : by I2C address 0b'110xxxx + * - Group B : by I2C address 0b'101xxxx + * + * where 'xxxx' is decided by the connections of pin AD2/AD0. The + * address used also affects the initial state of output signals. + * + * Within each group of ports, there are five known combinations of + * I/O ports: 4I4O, 4P4O, 8I, 8P, 8O, see the definitions below for + * the detailed organization of these ports. + * + * GPIO numbers start from 'gpio_base + 0' to 'gpio_base + 8/16', + * and GPIOs from GROUP_A are numbered before those from GROUP_B + * (if there are two groups). + * + * NOTE: MAX7328/MAX7329 are drop-in replacements for PCF8574/a, so + * they are not supported by this driver. + */ + +#define PORT_NONE 0x0 /* '/' No Port */ +#define PORT_OUTPUT 0x1 /* 'O' Push-Pull, Output Only */ +#define PORT_INPUT 0x2 /* 'I' Input Only */ +#define PORT_OPENDRAIN 0x3 /* 'P' Open-Drain, I/O */ + +#define IO_4I4O 0x5AA5 /* O7 O6 I5 I4 I3 I2 O1 O0 */ +#define IO_4P4O 0x5FF5 /* O7 O6 P5 P4 P3 P2 O1 O0 */ +#define IO_8I 0xAAAA /* I7 I6 I5 I4 I3 I2 I1 I0 */ +#define IO_8P 0xFFFF /* P7 P6 P5 P4 P3 P2 P1 P0 */ +#define IO_8O 0x5555 /* O7 O6 O5 O4 O3 O2 O1 O0 */ + +#define GROUP_A(x) ((x) & 0xffff) /* I2C Addr: 0b'110xxxx */ +#define GROUP_B(x) ((x) << 16) /* I2C Addr: 0b'101xxxx */ + +static const struct i2c_device_id max732x_id[] = { + { "max7319", GROUP_A(IO_8I) }, + { "max7320", GROUP_B(IO_8O) }, + { "max7321", GROUP_A(IO_8P) }, + { "max7322", GROUP_A(IO_4I4O) }, + { "max7323", GROUP_A(IO_4P4O) }, + { "max7324", GROUP_A(IO_8I) | GROUP_B(IO_8O) }, + { "max7325", GROUP_A(IO_8P) | GROUP_B(IO_8O) }, + { "max7326", GROUP_A(IO_4I4O) | GROUP_B(IO_8O) }, + { "max7327", GROUP_A(IO_4P4O) | GROUP_B(IO_8O) }, + { }, +}; +MODULE_DEVICE_TABLE(i2c, max732x_id); + +struct max732x_chip { + struct gpio_chip gpio_chip; + + struct i2c_client *client; /* "main" client */ + struct i2c_client *client_dummy; + struct i2c_client *client_group_a; + struct i2c_client *client_group_b; + + unsigned int mask_group_a; + unsigned int dir_input; + unsigned int dir_output; + + struct mutex lock; + uint8_t reg_out[2]; +}; + +static int max732x_write(struct max732x_chip *chip, int group_a, uint8_t val) +{ + struct i2c_client *client; + int ret; + + client = group_a ? chip->client_group_a : chip->client_group_b; + ret = i2c_smbus_write_byte(client, val); + if (ret < 0) { + dev_err(&client->dev, "failed writing\n"); + return ret; + } + + return 0; +} + +static int max732x_read(struct max732x_chip *chip, int group_a, uint8_t *val) +{ + struct i2c_client *client; + int ret; + + client = group_a ? chip->client_group_a : chip->client_group_b; + ret = i2c_smbus_read_byte(client); + if (ret < 0) { + dev_err(&client->dev, "failed reading\n"); + return ret; + } + + *val = (uint8_t)ret; + return 0; +} + +static inline int is_group_a(struct max732x_chip *chip, unsigned off) +{ + return (1u << off) & chip->mask_group_a; +} + +static int max732x_gpio_get_value(struct gpio_chip *gc, unsigned off) +{ + struct max732x_chip *chip; + uint8_t reg_val; + int ret; + + chip = container_of(gc, struct max732x_chip, gpio_chip); + + ret = max732x_read(chip, is_group_a(chip, off), ®_val); + if (ret < 0) + return 0; + + return reg_val & (1u << (off & 0x7)); +} + +static void max732x_gpio_set_value(struct gpio_chip *gc, unsigned off, int val) +{ + struct max732x_chip *chip; + uint8_t reg_out, mask = 1u << (off & 0x7); + int ret; + + chip = container_of(gc, struct max732x_chip, gpio_chip); + + mutex_lock(&chip->lock); + + reg_out = (off > 7) ? chip->reg_out[1] : chip->reg_out[0]; + reg_out = (val) ? reg_out | mask : reg_out & ~mask; + + ret = max732x_write(chip, is_group_a(chip, off), reg_out); + if (ret < 0) + goto out; + + /* update the shadow register then */ + if (off > 7) + chip->reg_out[1] = reg_out; + else + chip->reg_out[0] = reg_out; +out: + mutex_unlock(&chip->lock); +} + +static int max732x_gpio_direction_input(struct gpio_chip *gc, unsigned off) +{ + struct max732x_chip *chip; + unsigned int mask = 1u << off; + + chip = container_of(gc, struct max732x_chip, gpio_chip); + + if ((mask & chip->dir_input) == 0) { + dev_dbg(&chip->client->dev, "%s port %d is output only\n", + chip->client->name, off); + return -EACCES; + } + + return 0; +} + +static int max732x_gpio_direction_output(struct gpio_chip *gc, + unsigned off, int val) +{ + struct max732x_chip *chip; + unsigned int mask = 1u << off; + + chip = container_of(gc, struct max732x_chip, gpio_chip); + + if ((mask & chip->dir_output) == 0) { + dev_dbg(&chip->client->dev, "%s port %d is input only\n", + chip->client->name, off); + return -EACCES; + } + + max732x_gpio_set_value(gc, off, val); + return 0; +} + +static int __devinit max732x_setup_gpio(struct max732x_chip *chip, + const struct i2c_device_id *id, + unsigned gpio_start) +{ + struct gpio_chip *gc = &chip->gpio_chip; + uint32_t id_data = id->driver_data; + int i, port = 0; + + for (i = 0; i < 16; i++, id_data >>= 2) { + unsigned int mask = 1 << port; + + switch (id_data & 0x3) { + case PORT_OUTPUT: + chip->dir_output |= mask; + break; + case PORT_INPUT: + chip->dir_input |= mask; + break; + case PORT_OPENDRAIN: + chip->dir_output |= mask; + chip->dir_input |= mask; + break; + default: + continue; + } + + if (i < 8) + chip->mask_group_a |= mask; + port++; + } + + if (chip->dir_input) + gc->direction_input = max732x_gpio_direction_input; + if (chip->dir_output) { + gc->direction_output = max732x_gpio_direction_output; + gc->set = max732x_gpio_set_value; + } + gc->get = max732x_gpio_get_value; + gc->can_sleep = 1; + + gc->base = gpio_start; + gc->ngpio = port; + gc->label = chip->client->name; + gc->owner = THIS_MODULE; + + return port; +} + +static int __devinit max732x_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct max732x_platform_data *pdata; + struct max732x_chip *chip; + struct i2c_client *c; + uint16_t addr_a, addr_b; + int ret, nr_port; + + pdata = client->dev.platform_data; + if (pdata == NULL) + return -ENODEV; + + chip = kzalloc(sizeof(struct max732x_chip), GFP_KERNEL); + if (chip == NULL) + return -ENOMEM; + chip->client = client; + + nr_port = max732x_setup_gpio(chip, id, pdata->gpio_base); + + addr_a = (client->addr & 0x0f) | 0x60; + addr_b = (client->addr & 0x0f) | 0x50; + + switch (client->addr & 0x70) { + case 0x60: + chip->client_group_a = client; + if (nr_port > 7) { + c = i2c_new_dummy(client->adapter, addr_b); + chip->client_group_b = chip->client_dummy = c; + } + break; + case 0x50: + chip->client_group_b = client; + if (nr_port > 7) { + c = i2c_new_dummy(client->adapter, addr_a); + chip->client_group_a = chip->client_dummy = c; + } + break; + default: + dev_err(&client->dev, "invalid I2C address specified %02x\n", + client->addr); + ret = -EINVAL; + goto out_failed; + } + + mutex_init(&chip->lock); + + max732x_read(chip, is_group_a(chip, 0), &chip->reg_out[0]); + if (nr_port > 7) + max732x_read(chip, is_group_a(chip, 8), &chip->reg_out[1]); + + ret = gpiochip_add(&chip->gpio_chip); + if (ret) + goto out_failed; + + if (pdata->setup) { + ret = pdata->setup(client, chip->gpio_chip.base, + chip->gpio_chip.ngpio, pdata->context); + if (ret < 0) + dev_warn(&client->dev, "setup failed, %d\n", ret); + } + + i2c_set_clientdata(client, chip); + return 0; + +out_failed: + kfree(chip); + return ret; +} + +static int __devexit max732x_remove(struct i2c_client *client) +{ + struct max732x_platform_data *pdata = client->dev.platform_data; + struct max732x_chip *chip = i2c_get_clientdata(client); + int ret; + + if (pdata->teardown) { + ret = pdata->teardown(client, chip->gpio_chip.base, + chip->gpio_chip.ngpio, pdata->context); + if (ret < 0) { + dev_err(&client->dev, "%s failed, %d\n", + "teardown", ret); + return ret; + } + } + + ret = gpiochip_remove(&chip->gpio_chip); + if (ret) { + dev_err(&client->dev, "%s failed, %d\n", + "gpiochip_remove()", ret); + return ret; + } + + /* unregister any dummy i2c_client */ + if (chip->client_dummy) + i2c_unregister_device(chip->client_dummy); + + kfree(chip); + return 0; +} + +static struct i2c_driver max732x_driver = { + .driver = { + .name = "max732x", + .owner = THIS_MODULE, + }, + .probe = max732x_probe, + .remove = __devexit_p(max732x_remove), + .id_table = max732x_id, +}; + +static int __init max732x_init(void) +{ + return i2c_add_driver(&max732x_driver); +} +module_init(max732x_init); + +static void __exit max732x_exit(void) +{ + i2c_del_driver(&max732x_driver); +} +module_exit(max732x_exit); + +MODULE_AUTHOR("Eric Miao <eric.miao@marvell.com>"); +MODULE_DESCRIPTION("GPIO expander driver for MAX732X"); +MODULE_LICENSE("GPL"); diff --git a/drivers/gpio/mcp23s08.c b/drivers/gpio/mcp23s08.c index 7f92fdd..8a1b405 100644 --- a/drivers/gpio/mcp23s08.c +++ b/drivers/gpio/mcp23s08.c @@ -40,15 +40,26 @@ struct mcp23s08 { struct spi_device *spi; u8 addr; + u8 cache[11]; /* lock protects the cached values */ struct mutex lock; - u8 cache[11]; struct gpio_chip chip; struct work_struct work; }; +/* A given spi_device can represent up to four mcp23s08 chips + * sharing the same chipselect but using different addresses + * (e.g. chips #0 and #3 might be populated, but not #1 or $2). + * Driver data holds all the per-chip data. + */ +struct mcp23s08_driver_data { + unsigned ngpio; + struct mcp23s08 *mcp[4]; + struct mcp23s08 chip[]; +}; + static int mcp23s08_read(struct mcp23s08 *mcp, unsigned reg) { u8 tx[2], rx[1]; @@ -208,25 +219,18 @@ done: /*----------------------------------------------------------------------*/ -static int mcp23s08_probe(struct spi_device *spi) +static int mcp23s08_probe_one(struct spi_device *spi, unsigned addr, + unsigned base, unsigned pullups) { - struct mcp23s08 *mcp; - struct mcp23s08_platform_data *pdata; + struct mcp23s08_driver_data *data = spi_get_drvdata(spi); + struct mcp23s08 *mcp = data->mcp[addr]; int status; int do_update = 0; - pdata = spi->dev.platform_data; - if (!pdata || pdata->slave > 3 || !pdata->base) - return -ENODEV; - - mcp = kzalloc(sizeof *mcp, GFP_KERNEL); - if (!mcp) - return -ENOMEM; - mutex_init(&mcp->lock); mcp->spi = spi; - mcp->addr = 0x40 | (pdata->slave << 1); + mcp->addr = 0x40 | (addr << 1); mcp->chip.label = "mcp23s08", @@ -236,26 +240,28 @@ static int mcp23s08_probe(struct spi_device *spi) mcp->chip.set = mcp23s08_set; mcp->chip.dbg_show = mcp23s08_dbg_show; - mcp->chip.base = pdata->base; + mcp->chip.base = base; mcp->chip.ngpio = 8; mcp->chip.can_sleep = 1; + mcp->chip.dev = &spi->dev; mcp->chip.owner = THIS_MODULE; - spi_set_drvdata(spi, mcp); - - /* verify MCP_IOCON.SEQOP = 0, so sequential reads work */ + /* verify MCP_IOCON.SEQOP = 0, so sequential reads work, + * and MCP_IOCON.HAEN = 1, so we work with all chips. + */ status = mcp23s08_read(mcp, MCP_IOCON); if (status < 0) goto fail; - if (status & IOCON_SEQOP) { + if ((status & IOCON_SEQOP) || !(status & IOCON_HAEN)) { status &= ~IOCON_SEQOP; + status |= IOCON_HAEN; status = mcp23s08_write(mcp, MCP_IOCON, (u8) status); if (status < 0) goto fail; } /* configure ~100K pullups */ - status = mcp23s08_write(mcp, MCP_GPPU, pdata->pullups); + status = mcp23s08_write(mcp, MCP_GPPU, pullups); if (status < 0) goto fail; @@ -282,11 +288,58 @@ static int mcp23s08_probe(struct spi_device *spi) tx[1] = MCP_IPOL; memcpy(&tx[2], &mcp->cache[MCP_IPOL], sizeof(tx) - 2); status = spi_write_then_read(mcp->spi, tx, sizeof tx, NULL, 0); - - /* FIXME check status... */ + if (status < 0) + goto fail; } status = gpiochip_add(&mcp->chip); +fail: + if (status < 0) + dev_dbg(&spi->dev, "can't setup chip %d, --> %d\n", + addr, status); + return status; +} + +static int mcp23s08_probe(struct spi_device *spi) +{ + struct mcp23s08_platform_data *pdata; + unsigned addr; + unsigned chips = 0; + struct mcp23s08_driver_data *data; + int status; + unsigned base; + + pdata = spi->dev.platform_data; + if (!pdata || !gpio_is_valid(pdata->base)) + return -ENODEV; + + for (addr = 0; addr < 4; addr++) { + if (!pdata->chip[addr].is_present) + continue; + chips++; + } + if (!chips) + return -ENODEV; + + data = kzalloc(sizeof *data + chips * sizeof(struct mcp23s08), + GFP_KERNEL); + if (!data) + return -ENOMEM; + spi_set_drvdata(spi, data); + + base = pdata->base; + for (addr = 0; addr < 4; addr++) { + if (!pdata->chip[addr].is_present) + continue; + chips--; + data->mcp[addr] = &data->chip[chips]; + status = mcp23s08_probe_one(spi, addr, base, + pdata->chip[addr].pullups); + if (status < 0) + goto fail; + base += 8; + } + data->ngpio = base - pdata->base; /* NOTE: these chips have a relatively sane IRQ framework, with * per-signal masking and level/edge triggering. It's not yet @@ -294,8 +347,9 @@ static int mcp23s08_probe(struct spi_device *spi) */ if (pdata->setup) { - status = pdata->setup(spi, mcp->chip.base, - mcp->chip.ngpio, pdata->context); + status = pdata->setup(spi, + pdata->base, data->ngpio, + pdata->context); if (status < 0) dev_dbg(&spi->dev, "setup --> %d\n", status); } @@ -303,19 +357,29 @@ static int mcp23s08_probe(struct spi_device *spi) return 0; fail: - kfree(mcp); + for (addr = 0; addr < 4; addr++) { + int tmp; + + if (!data->mcp[addr]) + continue; + tmp = gpiochip_remove(&data->mcp[addr]->chip); + if (tmp < 0) + dev_err(&spi->dev, "%s --> %d\n", "remove", tmp); + } + kfree(data); return status; } static int mcp23s08_remove(struct spi_device *spi) { - struct mcp23s08 *mcp = spi_get_drvdata(spi); + struct mcp23s08_driver_data *data = spi_get_drvdata(spi); struct mcp23s08_platform_data *pdata = spi->dev.platform_data; + unsigned addr; int status = 0; if (pdata->teardown) { status = pdata->teardown(spi, - mcp->chip.base, mcp->chip.ngpio, + pdata->base, data->ngpio, pdata->context); if (status < 0) { dev_err(&spi->dev, "%s --> %d\n", "teardown", status); @@ -323,11 +387,20 @@ static int mcp23s08_remove(struct spi_device *spi) } } - status = gpiochip_remove(&mcp->chip); + for (addr = 0; addr < 4; addr++) { + int tmp; + + if (!data->mcp[addr]) + continue; + + tmp = gpiochip_remove(&data->mcp[addr]->chip); + if (tmp < 0) { + dev_err(&spi->dev, "%s --> %d\n", "remove", tmp); + status = tmp; + } + } if (status == 0) - kfree(mcp); - else - dev_err(&spi->dev, "%s --> %d\n", "remove", status); + kfree(data); return status; } @@ -355,4 +428,3 @@ static void __exit mcp23s08_exit(void) module_exit(mcp23s08_exit); MODULE_LICENSE("GPL"); - diff --git a/drivers/gpio/pca953x.c b/drivers/gpio/pca953x.c index a380730..cc84686 100644 --- a/drivers/gpio/pca953x.c +++ b/drivers/gpio/pca953x.c @@ -188,6 +188,7 @@ static void pca953x_setup_gpio(struct pca953x_chip *chip, int gpios) gc->base = chip->gpio_start; gc->ngpio = gpios; gc->label = chip->client->name; + gc->dev = &chip->client->dev; gc->owner = THIS_MODULE; } diff --git a/drivers/gpio/pcf857x.c b/drivers/gpio/pcf857x.c index d25d356..fc9c6ae 100644 --- a/drivers/gpio/pcf857x.c +++ b/drivers/gpio/pcf857x.c @@ -200,6 +200,7 @@ static int pcf857x_probe(struct i2c_client *client, gpio->chip.base = pdata->gpio_base; gpio->chip.can_sleep = 1; + gpio->chip.dev = &client->dev; gpio->chip.owner = THIS_MODULE; /* NOTE: the OnSemi jlc1562b is also largely compatible with diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c index 5641387..452c2d8 100644 --- a/drivers/gpu/drm/drm_drv.c +++ b/drivers/gpu/drm/drm_drv.c @@ -318,7 +318,7 @@ static void drm_cleanup(struct drm_device * dev) DRM_ERROR("Cannot unload module\n"); } -int drm_minors_cleanup(int id, void *ptr, void *data) +static int drm_minors_cleanup(int id, void *ptr, void *data) { struct drm_minor *minor = ptr; struct drm_device *dev; diff --git a/drivers/i2c/chips/Kconfig b/drivers/i2c/chips/Kconfig index 50e0a46..a95cb94 100644 --- a/drivers/i2c/chips/Kconfig +++ b/drivers/i2c/chips/Kconfig @@ -126,7 +126,7 @@ config ISP1301_OMAP config TPS65010 tristate "TPS6501x Power Management chips" - depends on HAVE_GPIO_LIB + depends on GPIOLIB default y if MACH_OMAP_H2 || MACH_OMAP_H3 || MACH_OMAP_OSK help If you say yes here you get support for the TPS6501x series of diff --git a/drivers/i2c/chips/tps65010.c b/drivers/i2c/chips/tps65010.c index 8594968..cf02e8f 100644 --- a/drivers/i2c/chips/tps65010.c +++ b/drivers/i2c/chips/tps65010.c @@ -636,6 +636,8 @@ static int tps65010_probe(struct i2c_client *client, tps->outmask = board->outmask; tps->chip.label = client->name; + tps->chip.dev = &client->dev; + tps->chip.owner = THIS_MODULE; tps->chip.set = tps65010_gpio_set; tps->chip.direction_output = tps65010_output; diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig index 04d9c4d..130ef64 100644 --- a/drivers/ide/Kconfig +++ b/drivers/ide/Kconfig @@ -314,7 +314,7 @@ comment "IDE chipset support/bugfixes" config IDE_GENERIC tristate "generic/default IDE chipset support" - depends on ALPHA || X86 || IA64 || M32R || MIPS || PPC32 + depends on ALPHA || X86 || IA64 || M32R || MIPS help If unsure, say N. diff --git a/drivers/ide/Makefile b/drivers/ide/Makefile index 5d414e3..64e0ecd 100644 --- a/drivers/ide/Makefile +++ b/drivers/ide/Makefile @@ -1,13 +1,6 @@ # -# Makefile for the kernel ata, atapi, and ide block device drivers. -# -# 12 September 2000, Bartlomiej Zolnierkiewicz <bkz@linux-ide.org> -# Rewritten to use lists instead of if-statements. -# -# Note : at this point, these files are compiled on all systems. -# In the future, some of these should be built conditionally. -# # link order is important here +# EXTRA_CFLAGS += -Idrivers/ide diff --git a/drivers/ide/arm/icside.c b/drivers/ide/arm/icside.c index f575e83..df4af40 100644 --- a/drivers/ide/arm/icside.c +++ b/drivers/ide/arm/icside.c @@ -710,8 +710,14 @@ static int __init icside_init(void) return ecard_register_driver(&icside_driver); } +static void __exit icside_exit(void); +{ + ecard_unregister_driver(&icside_driver); +} + MODULE_AUTHOR("Russell King <rmk@arm.linux.org.uk>"); MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("ICS IDE driver"); module_init(icside_init); +module_exit(icside_exit); diff --git a/drivers/ide/arm/palm_bk3710.c b/drivers/ide/arm/palm_bk3710.c index 65bb4b8..3e842d6 100644 --- a/drivers/ide/arm/palm_bk3710.c +++ b/drivers/ide/arm/palm_bk3710.c @@ -82,6 +82,7 @@ static const struct palm_bk3710_udmatiming palm_bk3710_udmatimings[6] = { {100, 120}, /* UDMA Mode 2 */ {100, 90}, /* UDMA Mode 3 */ {100, 60}, /* UDMA Mode 4 */ + {85, 40}, /* UDMA Mode 5 */ }; static void palm_bk3710_setudmamode(void __iomem *base, unsigned int dev, @@ -334,12 +335,11 @@ static const struct ide_port_ops palm_bk3710_ports_ops = { .cable_detect = palm_bk3710_cable_detect, }; -static const struct ide_port_info __devinitdata palm_bk3710_port_info = { +static struct ide_port_info __devinitdata palm_bk3710_port_info = { .init_dma = palm_bk3710_init_dma, .port_ops = &palm_bk3710_ports_ops, .host_flags = IDE_HFLAG_MMIO, .pio_mask = ATA_PIO4, - .udma_mask = ATA_UDMA4, /* (input clk 99MHz) */ .mwdma_mask = ATA_MWDMA2, }; @@ -352,7 +352,7 @@ static int __devinit palm_bk3710_probe(struct platform_device *pdev) int i, rc; hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; - clk = clk_get(NULL, "IDECLK"); + clk = clk_get(&pdev->dev, "IDECLK"); if (IS_ERR(clk)) return -ENODEV; @@ -392,6 +392,9 @@ static int __devinit palm_bk3710_probe(struct platform_device *pdev) hw.irq = irq->start; hw.chipset = ide_palm3710; + palm_bk3710_port_info.udma_mask = rate < 100000000 ? ATA_UDMA4 : + ATA_UDMA5; + rc = ide_host_add(&palm_bk3710_port_info, hws, NULL); if (rc) goto out; diff --git a/drivers/ide/arm/rapide.c b/drivers/ide/arm/rapide.c index 2bdd8b7..78d27d9 100644 --- a/drivers/ide/arm/rapide.c +++ b/drivers/ide/arm/rapide.c @@ -95,7 +95,13 @@ static int __init rapide_init(void) return ecard_register_driver(&rapide_driver); } +static void __exit rapide_exit(void) +{ + ecard_unregister_driver(&rapide_driver); +} + MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("Yellowstone RAPIDE driver"); module_init(rapide_init); +module_exit(rapide_exit); diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c index 4e73aee..e617cf0 100644 --- a/drivers/ide/ide-cd.c +++ b/drivers/ide/ide-cd.c @@ -57,23 +57,29 @@ static DEFINE_MUTEX(idecd_ref_mutex); #define ide_cd_g(disk) \ container_of((disk)->private_data, struct cdrom_info, driver) +static void ide_cd_release(struct kref *); + static struct cdrom_info *ide_cd_get(struct gendisk *disk) { struct cdrom_info *cd = NULL; mutex_lock(&idecd_ref_mutex); cd = ide_cd_g(disk); - if (cd) + if (cd) { kref_get(&cd->kref); + if (ide_device_get(cd->drive)) { + kref_put(&cd->kref, ide_cd_release); + cd = NULL; + } + } mutex_unlock(&idecd_ref_mutex); return cd; } -static void ide_cd_release(struct kref *); - static void ide_cd_put(struct cdrom_info *cd) { mutex_lock(&idecd_ref_mutex); + ide_device_put(cd->drive); kref_put(&cd->kref, ide_cd_release); mutex_unlock(&idecd_ref_mutex); } @@ -1305,13 +1311,30 @@ static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity, stat = ide_cd_queue_pc(drive, cmd, 0, &capbuf, &len, sense, 0, REQ_QUIET); - if (stat == 0) { - *capacity = 1 + be32_to_cpu(capbuf.lba); - *sectors_per_frame = - be32_to_cpu(capbuf.blocklen) >> SECTOR_BITS; + if (stat) + return stat; + + /* + * Sanity check the given block size + */ + switch (capbuf.blocklen) { + case __constant_cpu_to_be32(512): + case __constant_cpu_to_be32(1024): + case __constant_cpu_to_be32(2048): + case __constant_cpu_to_be32(4096): + break; + default: + printk(KERN_ERR "%s: weird block size %u\n", + drive->name, capbuf.blocklen); + printk(KERN_ERR "%s: default to 2kb block size\n", + drive->name); + capbuf.blocklen = __constant_cpu_to_be32(2048); + break; } - return stat; + *capacity = 1 + be32_to_cpu(capbuf.lba); + *sectors_per_frame = be32_to_cpu(capbuf.blocklen) >> SECTOR_BITS; + return 0; } static int cdrom_read_tocentry(ide_drive_t *drive, int trackno, int msf_flag, diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c index df5fe57..28d85b4 100644 --- a/drivers/ide/ide-disk.c +++ b/drivers/ide/ide-disk.c @@ -56,23 +56,29 @@ static DEFINE_MUTEX(idedisk_ref_mutex); #define ide_disk_g(disk) \ container_of((disk)->private_data, struct ide_disk_obj, driver) +static void ide_disk_release(struct kref *); + static struct ide_disk_obj *ide_disk_get(struct gendisk *disk) { struct ide_disk_obj *idkp = NULL; mutex_lock(&idedisk_ref_mutex); idkp = ide_disk_g(disk); - if (idkp) + if (idkp) { kref_get(&idkp->kref); + if (ide_device_get(idkp->drive)) { + kref_put(&idkp->kref, ide_disk_release); + idkp = NULL; + } + } mutex_unlock(&idedisk_ref_mutex); return idkp; } -static void ide_disk_release(struct kref *); - static void ide_disk_put(struct ide_disk_obj *idkp) { mutex_lock(&idedisk_ref_mutex); + ide_device_put(idkp->drive); kref_put(&idkp->kref, ide_disk_release); mutex_unlock(&idedisk_ref_mutex); } diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c index be99d46..71c377a 100644 --- a/drivers/ide/ide-dma.c +++ b/drivers/ide/ide-dma.c @@ -173,7 +173,7 @@ EXPORT_SYMBOL_GPL(ide_build_sglist); int ide_build_dmatable (ide_drive_t *drive, struct request *rq) { ide_hwif_t *hwif = HWIF(drive); - unsigned int *table = hwif->dmatable_cpu; + __le32 *table = (__le32 *)hwif->dmatable_cpu; unsigned int is_trm290 = (hwif->chipset == ide_trm290) ? 1 : 0; unsigned int count = 0; int i; diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c index 3d8e6dd..ca11a26 100644 --- a/drivers/ide/ide-floppy.c +++ b/drivers/ide/ide-floppy.c @@ -158,23 +158,29 @@ static DEFINE_MUTEX(idefloppy_ref_mutex); #define ide_floppy_g(disk) \ container_of((disk)->private_data, struct ide_floppy_obj, driver) +static void idefloppy_cleanup_obj(struct kref *); + static struct ide_floppy_obj *ide_floppy_get(struct gendisk *disk) { struct ide_floppy_obj *floppy = NULL; mutex_lock(&idefloppy_ref_mutex); floppy = ide_floppy_g(disk); - if (floppy) + if (floppy) { kref_get(&floppy->kref); + if (ide_device_get(floppy->drive)) { + kref_put(&floppy->kref, idefloppy_cleanup_obj); + floppy = NULL; + } + } mutex_unlock(&idefloppy_ref_mutex); return floppy; } -static void idefloppy_cleanup_obj(struct kref *); - static void ide_floppy_put(struct ide_floppy_obj *floppy) { mutex_lock(&idefloppy_ref_mutex); + ide_device_put(floppy->drive); kref_put(&floppy->kref, idefloppy_cleanup_obj); mutex_unlock(&idefloppy_ref_mutex); } diff --git a/drivers/ide/ide-generic.c b/drivers/ide/ide-generic.c index 31d98fe..8fe8b5b 100644 --- a/drivers/ide/ide-generic.c +++ b/drivers/ide/ide-generic.c @@ -20,6 +20,11 @@ #include <linux/module.h> #include <linux/ide.h> +/* FIXME: convert m32r to use ide_platform host driver */ +#ifdef CONFIG_M32R +#include <asm/m32r.h> +#endif + #define DRV_NAME "ide_generic" static int probe_mask = 0x03; @@ -80,6 +85,21 @@ static int __init ide_generic_sysfs_init(void) return 0; } +#if defined(CONFIG_PLAT_M32700UT) || defined(CONFIG_PLAT_MAPPI2) \ + || defined(CONFIG_PLAT_OPSPUT) +static const u16 legacy_bases[] = { 0x1f0 }; +static const int legacy_irqs[] = { PLD_IRQ_CFIREQ }; +#elif defined(CONFIG_PLAT_MAPPI3) +static const u16 legacy_bases[] = { 0x1f0, 0x170 }; +static const int legacy_irqs[] = { PLD_IRQ_CFIREQ, PLD_IRQ_IDEIREQ }; +#elif defined(CONFIG_ALPHA) +static const u16 legacy_bases[] = { 0x1f0, 0x170, 0x1e8, 0x168 }; +static const int legacy_irqs[] = { 14, 15, 11, 10 }; +#else +static const u16 legacy_bases[] = { 0x1f0, 0x170, 0x1e8, 0x168, 0x1e0, 0x160 }; +static const int legacy_irqs[] = { 14, 15, 11, 10, 8, 12 }; +#endif + static int __init ide_generic_init(void) { hw_regs_t hw[MAX_HWIFS], *hws[MAX_HWIFS]; @@ -87,11 +107,17 @@ static int __init ide_generic_init(void) unsigned long io_addr; int i, rc; +#ifdef CONFIG_MIPS + if (!ide_probe_legacy()) + return -ENODEV; +#endif printk(KERN_INFO DRV_NAME ": please use \"probe_mask=0x3f\" module " "parameter for probing all legacy ISA IDE ports\n"); - for (i = 0; i < MAX_HWIFS; i++) { - io_addr = ide_default_io_base(i); + memset(hws, 0, sizeof(hw_regs_t *) * MAX_HWIFS); + + for (i = 0; i < ARRAY_SIZE(legacy_bases); i++) { + io_addr = legacy_bases[i]; hws[i] = NULL; @@ -113,7 +139,11 @@ static int __init ide_generic_init(void) memset(&hw[i], 0, sizeof(hw[i])); ide_std_init_ports(&hw[i], io_addr, io_addr + 0x206); - hw[i].irq = ide_default_irq(io_addr); +#ifdef CONFIG_IA64 + hw[i].irq = isa_irq_to_vector(legacy_irqs[i]); +#else + hw[i].irq = legacy_irqs[i]; +#endif hw[i].chipset = ide_generic; hws[i] = &hw[i]; diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c index 07da5fb..8aae917 100644 --- a/drivers/ide/ide-iops.c +++ b/drivers/ide/ide-iops.c @@ -510,10 +510,8 @@ void ide_fixstring (u8 *s, const int bytecount, const int byteswap) if (byteswap) { /* convert from big-endian to host byte order */ - for (p = end ; p != s;) { - unsigned short *pp = (unsigned short *) (p -= 2); - *pp = ntohs(*pp); - } + for (p = end ; p != s;) + be16_to_cpus((u16 *)(p -= 2)); } /* strip leading blanks */ while (s != end && *s == ' ') diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c index 4aa76c45..994e410 100644 --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -134,18 +134,6 @@ static inline void do_identify (ide_drive_t *drive, u8 cmd) #endif ide_fix_driveid(id); -#if defined (CONFIG_SCSI_EATA_PIO) || defined (CONFIG_SCSI_EATA) - /* - * EATA SCSI controllers do a hardware ATA emulation: - * Ignore them if there is a driver for them available. - */ - if ((id->model[0] == 'P' && id->model[1] == 'M') || - (id->model[0] == 'S' && id->model[1] == 'K')) { - printk("%s: EATA SCSI HBA %.10s\n", drive->name, id->model); - goto err_misc; - } -#endif /* CONFIG_SCSI_EATA || CONFIG_SCSI_EATA_PIO */ - /* * WIN_IDENTIFY returns little-endian info, * WIN_PIDENTIFY *usually* returns little-endian info. @@ -167,7 +155,8 @@ static inline void do_identify (ide_drive_t *drive, u8 cmd) if (strstr(id->model, "E X A B Y T E N E S T")) goto err_misc; - printk("%s: %s, ", drive->name, id->model); + printk(KERN_INFO "%s: %s, ", drive->name, id->model); + drive->present = 1; drive->dead = 0; @@ -176,16 +165,17 @@ static inline void do_identify (ide_drive_t *drive, u8 cmd) */ if (cmd == WIN_PIDENTIFY) { u8 type = (id->config >> 8) & 0x1f; - printk("ATAPI "); + + printk(KERN_CONT "ATAPI "); switch (type) { case ide_floppy: if (!strstr(id->model, "CD-ROM")) { if (!strstr(id->model, "oppy") && !strstr(id->model, "poyp") && !strstr(id->model, "ZIP")) - printk("cdrom or floppy?, assuming "); + printk(KERN_CONT "cdrom or floppy?, assuming "); if (drive->media != ide_cdrom) { - printk ("FLOPPY"); + printk(KERN_CONT "FLOPPY"); drive->removable = 1; break; } @@ -198,25 +188,25 @@ static inline void do_identify (ide_drive_t *drive, u8 cmd) /* kludge for Apple PowerBook internal zip */ if (!strstr(id->model, "CD-ROM") && strstr(id->model, "ZIP")) { - printk ("FLOPPY"); + printk(KERN_CONT "FLOPPY"); type = ide_floppy; break; } #endif - printk ("CD/DVD-ROM"); + printk(KERN_CONT "CD/DVD-ROM"); break; case ide_tape: - printk ("TAPE"); + printk(KERN_CONT "TAPE"); break; case ide_optical: - printk ("OPTICAL"); + printk(KERN_CONT "OPTICAL"); drive->removable = 1; break; default: - printk("UNKNOWN (type %d)", type); + printk(KERN_CONT "UNKNOWN (type %d)", type); break; } - printk (" drive\n"); + printk(KERN_CONT " drive\n"); drive->media = type; /* an ATAPI device ignores DRDY */ drive->ready_stat = 0; @@ -236,7 +226,9 @@ static inline void do_identify (ide_drive_t *drive, u8 cmd) drive->removable = 1; drive->media = ide_disk; - printk("%s DISK drive\n", (id->config == 0x848a) ? "CFA" : "ATA" ); + + printk(KERN_CONT "%s DISK drive\n", + (id->config == 0x848a) ? "CFA" : "ATA"); return; @@ -387,7 +379,7 @@ static int try_to_identify (ide_drive_t *drive, u8 cmd) /* Mmmm.. multiple IRQs.. * don't know which was ours */ - printk("%s: IRQ probe failed (0x%lx)\n", + printk(KERN_ERR "%s: IRQ probe failed (0x%lx)\n", drive->name, cookie); } } @@ -456,7 +448,7 @@ static int do_probe (ide_drive_t *drive, u8 cmd) return 4; } #ifdef DEBUG - printk("probing for %s: present=%d, media=%d, probetype=%s\n", + printk(KERN_INFO "probing for %s: present=%d, media=%d, probetype=%s\n", drive->name, drive->present, drive->media, (cmd == WIN_IDENTIFY) ? "ATA" : "ATAPI"); #endif @@ -534,7 +526,8 @@ static void enable_nest (ide_drive_t *drive) const struct ide_tp_ops *tp_ops = hwif->tp_ops; u8 stat; - printk("%s: enabling %s -- ", hwif->name, drive->id->model); + printk(KERN_INFO "%s: enabling %s -- ", hwif->name, drive->id->model); + SELECT_DRIVE(drive); msleep(50); tp_ops->exec_command(hwif, EXABYTE_ENABLE_NEST); @@ -883,7 +876,7 @@ static void save_match(ide_hwif_t *hwif, ide_hwif_t *new, ide_hwif_t **match) if (m && m->hwgroup && m->hwgroup != new->hwgroup) { if (!new->hwgroup) return; - printk("%s: potential irq problem with %s and %s\n", + printk(KERN_WARNING "%s: potential IRQ problem with %s and %s\n", hwif->name, new->name, m->name); } if (!m || m->irq != hwif->irq) /* don't undo a prior perfect match */ @@ -1142,17 +1135,17 @@ static int init_irq (ide_hwif_t *hwif) } #if !defined(__mc68000__) - printk("%s at 0x%03lx-0x%03lx,0x%03lx on irq %d", hwif->name, + printk(KERN_INFO "%s at 0x%03lx-0x%03lx,0x%03lx on irq %d", hwif->name, io_ports->data_addr, io_ports->status_addr, io_ports->ctl_addr, hwif->irq); #else - printk("%s at 0x%08lx on irq %d", hwif->name, + printk(KERN_INFO "%s at 0x%08lx on irq %d", hwif->name, io_ports->data_addr, hwif->irq); #endif /* __mc68000__ */ if (match) - printk(" (%sed with %s)", + printk(KERN_CONT " (%sed with %s)", hwif->sharing_irq ? "shar" : "serializ", match->name); - printk("\n"); + printk(KERN_CONT "\n"); mutex_unlock(&ide_cfg_mtx); return 0; @@ -1287,7 +1280,7 @@ static int hwif_init(ide_hwif_t *hwif) if (!hwif->irq) { hwif->irq = __ide_default_irq(hwif->io_ports.data_addr); if (!hwif->irq) { - printk("%s: DISABLED, NO IRQ\n", hwif->name); + printk(KERN_ERR "%s: disabled, no IRQ\n", hwif->name); return 0; } } @@ -1317,16 +1310,16 @@ static int hwif_init(ide_hwif_t *hwif) */ hwif->irq = __ide_default_irq(hwif->io_ports.data_addr); if (!hwif->irq) { - printk("%s: Disabled unable to get IRQ %d.\n", + printk(KERN_ERR "%s: disabled, unable to get IRQ %d\n", hwif->name, old_irq); goto out; } if (init_irq(hwif)) { - printk("%s: probed IRQ %d and default IRQ %d failed.\n", + printk(KERN_ERR "%s: probed IRQ %d and default IRQ %d failed\n", hwif->name, old_irq, hwif->irq); goto out; } - printk("%s: probed IRQ %d failed, using default.\n", + printk(KERN_WARNING "%s: probed IRQ %d failed, using default\n", hwif->name, hwif->irq); done: @@ -1595,6 +1588,8 @@ struct ide_host *ide_host_alloc_all(const struct ide_port_info *d, ide_init_port_data(hwif, idx); + hwif->host = host; + host->ports[i] = hwif; host->n_ports++; } @@ -1604,6 +1599,12 @@ struct ide_host *ide_host_alloc_all(const struct ide_port_info *d, return NULL; } + if (hws[0]) + host->dev[0] = hws[0]->dev; + + if (d) + host->host_flags = d->host_flags; + return host; } EXPORT_SYMBOL_GPL(ide_host_alloc_all); diff --git a/drivers/ide/ide-proc.c b/drivers/ide/ide-proc.c index 151c91e..f66c9c3 100644 --- a/drivers/ide/ide-proc.c +++ b/drivers/ide/ide-proc.c @@ -105,7 +105,7 @@ static int proc_ide_read_identify len = sprintf(page, "\n"); if (drive) { - unsigned short *val = (unsigned short *) page; + __le16 *val = (__le16 *)page; err = taskfile_lib_get_identify(drive, page); if (!err) { @@ -113,7 +113,7 @@ static int proc_ide_read_identify page = out; do { out += sprintf(out, "%04x%c", - le16_to_cpu(*val), (++i & 7) ? ' ' : '\n'); + le16_to_cpup(val), (++i & 7) ? ' ' : '\n'); val += 1; } while (i < (SECTOR_WORDS * 2)); len = out - page; diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c index 6962ca4..82c2afe 100644 --- a/drivers/ide/ide-tape.c +++ b/drivers/ide/ide-tape.c @@ -322,23 +322,29 @@ static struct class *idetape_sysfs_class; #define ide_tape_g(disk) \ container_of((disk)->private_data, struct ide_tape_obj, driver) +static void ide_tape_release(struct kref *); + static struct ide_tape_obj *ide_tape_get(struct gendisk *disk) { struct ide_tape_obj *tape = NULL; mutex_lock(&idetape_ref_mutex); tape = ide_tape_g(disk); - if (tape) + if (tape) { kref_get(&tape->kref); + if (ide_device_get(tape->drive)) { + kref_put(&tape->kref, ide_tape_release); + tape = NULL; + } + } mutex_unlock(&idetape_ref_mutex); return tape; } -static void ide_tape_release(struct kref *); - static void ide_tape_put(struct ide_tape_obj *tape) { mutex_lock(&idetape_ref_mutex); + ide_device_put(tape->drive); kref_put(&tape->kref, ide_tape_release); mutex_unlock(&idetape_ref_mutex); } @@ -649,10 +655,10 @@ static void ide_tape_callback(ide_drive_t *drive) uptodate = 0; } else { debug_log(DBG_SENSE, "Block Location - %u\n", - be32_to_cpu(*(u32 *)&readpos[4])); + be32_to_cpup((__be32 *)&readpos[4])); tape->partition = readpos[1]; - tape->first_frame = be32_to_cpu(*(u32 *)&readpos[4]); + tape->first_frame = be32_to_cpup((__be32 *)&readpos[4]); set_bit(IDE_AFLAG_ADDRESS_VALID, &drive->atapi_flags); } } @@ -2375,23 +2381,23 @@ static void idetape_get_mode_sense_results(ide_drive_t *drive) caps = pc.buf + 4 + pc.buf[3]; /* convert to host order and save for later use */ - speed = be16_to_cpu(*(u16 *)&caps[14]); - max_speed = be16_to_cpu(*(u16 *)&caps[8]); + speed = be16_to_cpup((__be16 *)&caps[14]); + max_speed = be16_to_cpup((__be16 *)&caps[8]); - put_unaligned(max_speed, (u16 *)&caps[8]); - put_unaligned(be16_to_cpu(*(u16 *)&caps[12]), (u16 *)&caps[12]); - put_unaligned(speed, (u16 *)&caps[14]); - put_unaligned(be16_to_cpu(*(u16 *)&caps[16]), (u16 *)&caps[16]); + *(u16 *)&caps[8] = max_speed; + *(u16 *)&caps[12] = be16_to_cpup((__be16 *)&caps[12]); + *(u16 *)&caps[14] = speed; + *(u16 *)&caps[16] = be16_to_cpup((__be16 *)&caps[16]); if (!speed) { printk(KERN_INFO "ide-tape: %s: invalid tape speed " "(assuming 650KB/sec)\n", drive->name); - put_unaligned(650, (u16 *)&caps[14]); + *(u16 *)&caps[14] = 650; } if (!max_speed) { printk(KERN_INFO "ide-tape: %s: invalid max_speed " "(assuming 650KB/sec)\n", drive->name); - put_unaligned(650, (u16 *)&caps[8]); + *(u16 *)&caps[8] = 650; } memcpy(&tape->caps, caps, 20); diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c index aeddbbd..7fb6f1c 100644 --- a/drivers/ide/ide-taskfile.c +++ b/drivers/ide/ide-taskfile.c @@ -126,7 +126,10 @@ EXPORT_SYMBOL_GPL(do_rw_taskfile); static ide_startstop_t set_multmode_intr(ide_drive_t *drive) { ide_hwif_t *hwif = drive->hwif; - u8 stat = hwif->tp_ops->read_status(hwif); + u8 stat; + + local_irq_enable_in_hardirq(); + stat = hwif->tp_ops->read_status(hwif); if (OK_STAT(stat, READY_STAT, BAD_STAT)) drive->mult_count = drive->mult_req; @@ -147,6 +150,8 @@ static ide_startstop_t set_geometry_intr(ide_drive_t *drive) int retries = 5; u8 stat; + local_irq_enable_in_hardirq(); + while (1) { stat = hwif->tp_ops->read_status(hwif); if ((stat & BUSY_STAT) == 0 || retries-- == 0) @@ -170,7 +175,10 @@ static ide_startstop_t set_geometry_intr(ide_drive_t *drive) static ide_startstop_t recal_intr(ide_drive_t *drive) { ide_hwif_t *hwif = drive->hwif; - u8 stat = hwif->tp_ops->read_status(hwif); + u8 stat; + + local_irq_enable_in_hardirq(); + stat = hwif->tp_ops->read_status(hwif); if (!OK_STAT(stat, READY_STAT, BAD_STAT)) return ide_error(drive, "recal_intr", stat); diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c index 60f0ca6..7724516 100644 --- a/drivers/ide/ide.c +++ b/drivers/ide/ide.c @@ -618,6 +618,53 @@ set_val: EXPORT_SYMBOL(generic_ide_ioctl); +/** + * ide_device_get - get an additional reference to a ide_drive_t + * @drive: device to get a reference to + * + * Gets a reference to the ide_drive_t and increments the use count of the + * underlying LLDD module. + */ +int ide_device_get(ide_drive_t *drive) +{ + struct device *host_dev; + struct module *module; + + if (!get_device(&drive->gendev)) + return -ENXIO; + + host_dev = drive->hwif->host->dev[0]; + module = host_dev ? host_dev->driver->owner : NULL; + + if (module && !try_module_get(module)) { + put_device(&drive->gendev); + return -ENXIO; + } + + return 0; +} +EXPORT_SYMBOL_GPL(ide_device_get); + +/** + * ide_device_put - release a reference to a ide_drive_t + * @drive: device to release a reference on + * + * Release a reference to the ide_drive_t and decrements the use count of + * the underlying LLDD module. + */ +void ide_device_put(ide_drive_t *drive) +{ +#ifdef CONFIG_MODULE_UNLOAD + struct device *host_dev = drive->hwif->host->dev[0]; + struct module *module = host_dev ? host_dev->driver->owner : NULL; + + if (module) + module_put(module); +#endif + put_device(&drive->gendev); +} +EXPORT_SYMBOL_GPL(ide_device_put); + static int ide_bus_match(struct device *dev, struct device_driver *drv) { return 1; diff --git a/drivers/ide/legacy/gayle.c b/drivers/ide/legacy/gayle.c index dd5c467..51ba085 100644 --- a/drivers/ide/legacy/gayle.c +++ b/drivers/ide/legacy/gayle.c @@ -127,7 +127,7 @@ static int __init gayle_init(void) unsigned long phys_base, res_start, res_n; unsigned long base, ctrlport, irqport; ide_ack_intr_t *ack_intr; - int a4000, i; + int a4000, i, rc; hw_regs_t hw[GAYLE_NUM_HWIFS], *hws[] = { NULL, NULL, NULL, NULL }; if (!MACH_IS_AMIGA) @@ -179,7 +179,11 @@ found: hws[i] = &hw[i]; } - return ide_host_add(NULL, hws, NULL); + rc = ide_host_add(NULL, hws, NULL); + if (rc) + release_mem_region(res_start, res_n); + + return rc; } module_init(gayle_init); diff --git a/drivers/ide/legacy/ht6560b.c b/drivers/ide/legacy/ht6560b.c index 7bc8fd5..98f7c95e 100644 --- a/drivers/ide/legacy/ht6560b.c +++ b/drivers/ide/legacy/ht6560b.c @@ -3,34 +3,12 @@ */ /* - * - * Version 0.01 Initial version hacked out of ide.c - * - * Version 0.02 Added support for PIO modes, auto-tune - * - * Version 0.03 Some cleanups - * - * Version 0.05 PIO mode cycle timings auto-tune using bus-speed - * - * Version 0.06 Prefetch mode now defaults no OFF. To set - * prefetch mode OFF/ON use "hdparm -p8/-p9". - * Unmask irq is disabled when prefetch mode - * is enabled. - * - * Version 0.07 Trying to fix CD-ROM detection problem. - * "Prefetch" mode bit OFF for ide disks and - * ON for anything else. - * - * Version 0.08 Need to force prefetch for CDs and other non-disk - * devices. (not sure which devices exactly need - * prefetch) - * * HT-6560B EIDE-controller support * To activate controller support use kernel parameter "ide0=ht6560b". * Use hdparm utility to enable PIO mode support. * * Author: Mikko Ala-Fossi <maf@iki.fi> - * Jan Evert van Grootheest <janevert@caiway.nl> + * Jan Evert van Grootheest <j.e.van.grootheest@caiway.nl> * * Try: http://www.maf.iki.fi/~maf/ht6560b/ */ diff --git a/drivers/ide/pci/aec62xx.c b/drivers/ide/pci/aec62xx.c index fbc43e1..e0c8fe7 100644 --- a/drivers/ide/pci/aec62xx.c +++ b/drivers/ide/pci/aec62xx.c @@ -13,6 +13,8 @@ #include <asm/io.h> +#define DRV_NAME "aec62xx" + struct chipset_bus_clock_list_entry { u8 xfer_speed; u8 chipset_settings; @@ -59,10 +61,6 @@ static const struct chipset_bus_clock_list_entry aec6xxx_34_base [] = { { 0, 0x00, 0x00 } }; -#define BUSCLOCK(D) \ - ((struct chipset_bus_clock_list_entry *) pci_get_drvdata((D))) - - /* * TO DO: active tuning and correction of cards without a bios. */ @@ -88,6 +86,8 @@ static void aec6210_set_mode(ide_drive_t *drive, const u8 speed) { ide_hwif_t *hwif = HWIF(drive); struct pci_dev *dev = to_pci_dev(hwif->dev); + struct ide_host *host = pci_get_drvdata(dev); + struct chipset_bus_clock_list_entry *bus_clock = host->host_priv; u16 d_conf = 0; u8 ultra = 0, ultra_conf = 0; u8 tmp0 = 0, tmp1 = 0, tmp2 = 0; @@ -96,7 +96,7 @@ static void aec6210_set_mode(ide_drive_t *drive, const u8 speed) local_irq_save(flags); /* 0x40|(2*drive->dn): Active, 0x41|(2*drive->dn): Recovery */ pci_read_config_word(dev, 0x40|(2*drive->dn), &d_conf); - tmp0 = pci_bus_clock_list(speed, BUSCLOCK(dev)); + tmp0 = pci_bus_clock_list(speed, bus_clock); d_conf = ((tmp0 & 0xf0) << 4) | (tmp0 & 0xf); pci_write_config_word(dev, 0x40|(2*drive->dn), d_conf); @@ -104,7 +104,7 @@ static void aec6210_set_mode(ide_drive_t *drive, const u8 speed) tmp2 = 0x00; pci_read_config_byte(dev, 0x54, &ultra); tmp1 = ((0x00 << (2*drive->dn)) | (ultra & ~(3 << (2*drive->dn)))); - ultra_conf = pci_bus_clock_list_ultra(speed, BUSCLOCK(dev)); + ultra_conf = pci_bus_clock_list_ultra(speed, bus_clock); tmp2 = ((ultra_conf << (2*drive->dn)) | (tmp1 & ~(3 << (2*drive->dn)))); pci_write_config_byte(dev, 0x54, tmp2); local_irq_restore(flags); @@ -114,6 +114,8 @@ static void aec6260_set_mode(ide_drive_t *drive, const u8 speed) { ide_hwif_t *hwif = HWIF(drive); struct pci_dev *dev = to_pci_dev(hwif->dev); + struct ide_host *host = pci_get_drvdata(dev); + struct chipset_bus_clock_list_entry *bus_clock = host->host_priv; u8 unit = (drive->select.b.unit & 0x01); u8 tmp1 = 0, tmp2 = 0; u8 ultra = 0, drive_conf = 0, ultra_conf = 0; @@ -122,12 +124,12 @@ static void aec6260_set_mode(ide_drive_t *drive, const u8 speed) local_irq_save(flags); /* high 4-bits: Active, low 4-bits: Recovery */ pci_read_config_byte(dev, 0x40|drive->dn, &drive_conf); - drive_conf = pci_bus_clock_list(speed, BUSCLOCK(dev)); + drive_conf = pci_bus_clock_list(speed, bus_clock); pci_write_config_byte(dev, 0x40|drive->dn, drive_conf); pci_read_config_byte(dev, (0x44|hwif->channel), &ultra); tmp1 = ((0x00 << (4*unit)) | (ultra & ~(7 << (4*unit)))); - ultra_conf = pci_bus_clock_list_ultra(speed, BUSCLOCK(dev)); + ultra_conf = pci_bus_clock_list_ultra(speed, bus_clock); tmp2 = ((ultra_conf << (4*unit)) | (tmp1 & ~(7 << (4*unit)))); pci_write_config_byte(dev, (0x44|hwif->channel), tmp2); local_irq_restore(flags); @@ -138,15 +140,8 @@ static void aec_set_pio_mode(ide_drive_t *drive, const u8 pio) drive->hwif->port_ops->set_dma_mode(drive, pio + XFER_PIO_0); } -static unsigned int __devinit init_chipset_aec62xx(struct pci_dev *dev, const char *name) +static unsigned int __devinit init_chipset_aec62xx(struct pci_dev *dev) { - int bus_speed = ide_pci_clk ? ide_pci_clk : 33; - - if (bus_speed <= 33) - pci_set_drvdata(dev, (void *) aec6xxx_33_base); - else - pci_set_drvdata(dev, (void *) aec6xxx_34_base); - /* These are necessary to get AEC6280 Macintosh cards to work */ if ((dev->device == PCI_DEVICE_ID_ARTOP_ATP865) || (dev->device == PCI_DEVICE_ID_ARTOP_ATP865R)) { @@ -187,8 +182,8 @@ static const struct ide_port_ops atp86x_port_ops = { }; static const struct ide_port_info aec62xx_chipsets[] __devinitdata = { - { /* 0 */ - .name = "AEC6210", + { /* 0: AEC6210 */ + .name = DRV_NAME, .init_chipset = init_chipset_aec62xx, .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}}, .port_ops = &atp850_port_ops, @@ -199,8 +194,9 @@ static const struct ide_port_info aec62xx_chipsets[] __devinitdata = { .pio_mask = ATA_PIO4, .mwdma_mask = ATA_MWDMA2, .udma_mask = ATA_UDMA2, - },{ /* 1 */ - .name = "AEC6260", + }, + { /* 1: AEC6260 */ + .name = DRV_NAME, .init_chipset = init_chipset_aec62xx, .port_ops = &atp86x_port_ops, .host_flags = IDE_HFLAG_NO_ATAPI_DMA | IDE_HFLAG_NO_AUTODMA | @@ -208,8 +204,9 @@ static const struct ide_port_info aec62xx_chipsets[] __devinitdata = { .pio_mask = ATA_PIO4, .mwdma_mask = ATA_MWDMA2, .udma_mask = ATA_UDMA4, - },{ /* 2 */ - .name = "AEC6260R", + }, + { /* 2: AEC6260R */ + .name = DRV_NAME, .init_chipset = init_chipset_aec62xx, .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}}, .port_ops = &atp86x_port_ops, @@ -218,8 +215,9 @@ static const struct ide_port_info aec62xx_chipsets[] __devinitdata = { .pio_mask = ATA_PIO4, .mwdma_mask = ATA_MWDMA2, .udma_mask = ATA_UDMA4, - },{ /* 3 */ - .name = "AEC6280", + }, + { /* 3: AEC6280 */ + .name = DRV_NAME, .init_chipset = init_chipset_aec62xx, .port_ops = &atp86x_port_ops, .host_flags = IDE_HFLAG_NO_ATAPI_DMA | @@ -227,8 +225,9 @@ static const struct ide_port_info aec62xx_chipsets[] __devinitdata = { .pio_mask = ATA_PIO4, .mwdma_mask = ATA_MWDMA2, .udma_mask = ATA_UDMA5, - },{ /* 4 */ - .name = "AEC6280R", + }, + { /* 4: AEC6280R */ + .name = DRV_NAME, .init_chipset = init_chipset_aec62xx, .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}}, .port_ops = &atp86x_port_ops, @@ -254,10 +253,17 @@ static const struct ide_port_info aec62xx_chipsets[] __devinitdata = { static int __devinit aec62xx_init_one(struct pci_dev *dev, const struct pci_device_id *id) { + const struct chipset_bus_clock_list_entry *bus_clock; struct ide_port_info d; u8 idx = id->driver_data; + int bus_speed = ide_pci_clk ? ide_pci_clk : 33; int err; + if (bus_speed <= 33) + bus_clock = aec6xxx_33_base; + else + bus_clock = aec6xxx_34_base; + err = pci_enable_device(dev); if (err) return err; @@ -268,18 +274,25 @@ static int __devinit aec62xx_init_one(struct pci_dev *dev, const struct pci_devi unsigned long dma_base = pci_resource_start(dev, 4); if (inb(dma_base + 2) & 0x10) { - d.name = (idx == 4) ? "AEC6880R" : "AEC6880"; + printk(KERN_INFO DRV_NAME " %s: AEC6880%s card detected" + "\n", pci_name(dev), (idx == 4) ? "R" : ""); d.udma_mask = ATA_UDMA6; } } - err = ide_setup_pci_device(dev, &d); + err = ide_pci_init_one(dev, &d, (void *)bus_clock); if (err) pci_disable_device(dev); return err; } +static void __devexit aec62xx_remove(struct pci_dev *dev) +{ + ide_pci_remove(dev); + pci_disable_device(dev); +} + static const struct pci_device_id aec62xx_pci_tbl[] = { { PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP850UF), 0 }, { PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP860), 1 }, @@ -294,6 +307,7 @@ static struct pci_driver driver = { .name = "AEC62xx_IDE", .id_table = aec62xx_pci_tbl, .probe = aec62xx_init_one, + .remove = aec62xx_remove, }; static int __init aec62xx_ide_init(void) @@ -301,7 +315,13 @@ static int __init aec62xx_ide_init(void) return ide_pci_register_driver(&driver); } +static void __exit aec62xx_ide_exit(void) +{ + pci_unregister_driver(&driver); +} + module_init(aec62xx_ide_init); +module_exit(aec62xx_ide_exit); MODULE_AUTHOR("Andre Hedrick"); MODULE_DESCRIPTION("PCI driver module for ARTOP AEC62xx IDE"); diff --git a/drivers/ide/pci/alim15x3.c b/drivers/ide/pci/alim15x3.c index 5ef7817..b582687 100644 --- a/drivers/ide/pci/alim15x3.c +++ b/drivers/ide/pci/alim15x3.c @@ -38,6 +38,8 @@ #include <asm/io.h> +#define DRV_NAME "alim15x3" + /* * Allow UDMA on M1543C-E chipset for WDC disks that ignore CRC checking * (this is DANGEROUS and could result in data corruption). @@ -207,13 +209,12 @@ static int ali15x3_dma_setup(ide_drive_t *drive) /** * init_chipset_ali15x3 - Initialise an ALi IDE controller * @dev: PCI device - * @name: Name of the controller * * This function initializes the ALI IDE controller and where * appropriate also sets up the 1533 southbridge. */ - -static unsigned int __devinit init_chipset_ali15x3 (struct pci_dev *dev, const char *name) + +static unsigned int __devinit init_chipset_ali15x3(struct pci_dev *dev) { unsigned long flags; u8 tmpbyte; @@ -515,7 +516,7 @@ static const struct ide_dma_ops ali_dma_ops = { }; static const struct ide_port_info ali15x3_chipset __devinitdata = { - .name = "ALI15X3", + .name = DRV_NAME, .init_chipset = init_chipset_ali15x3, .init_hwif = init_hwif_ali15x3, .init_dma = init_dma_ali15x3, @@ -565,7 +566,7 @@ static int __devinit alim15x3_init_one(struct pci_dev *dev, const struct pci_dev if (idx == 0) d.host_flags |= IDE_HFLAG_CLEAR_SIMPLEX; - return ide_setup_pci_device(dev, &d); + return ide_pci_init_one(dev, &d, NULL); } @@ -580,6 +581,7 @@ static struct pci_driver driver = { .name = "ALI15x3_IDE", .id_table = alim15x3_pci_tbl, .probe = alim15x3_init_one, + .remove = ide_pci_remove, }; static int __init ali15x3_ide_init(void) @@ -587,7 +589,13 @@ static int __init ali15x3_ide_init(void) return ide_pci_register_driver(&driver); } +static void __exit ali15x3_ide_exit(void) +{ + return pci_unregister_driver(&driver); +} + module_init(ali15x3_ide_init); +module_exit(ali15x3_ide_exit); MODULE_AUTHOR("Michael Aubry, Andrzej Krzysztofowicz, CJ, Andre Hedrick, Alan Cox"); MODULE_DESCRIPTION("PCI driver module for ALi 15x3 IDE"); diff --git a/drivers/ide/pci/amd74xx.c b/drivers/ide/pci/amd74xx.c index ef7d971..2cea7bf 100644 --- a/drivers/ide/pci/amd74xx.c +++ b/drivers/ide/pci/amd74xx.c @@ -21,6 +21,8 @@ #include <linux/init.h> #include <linux/ide.h> +#define DRV_NAME "amd74xx" + enum { AMD_IDE_CONFIG = 0x41, AMD_CABLE_DETECT = 0x42, @@ -110,15 +112,13 @@ static void amd_set_pio_mode(ide_drive_t *drive, const u8 pio) amd_set_drive(drive, XFER_PIO_0 + pio); } -static void __devinit amd7409_cable_detect(struct pci_dev *dev, - const char *name) +static void __devinit amd7409_cable_detect(struct pci_dev *dev) { /* no host side cable detection */ amd_80w = 0x03; } -static void __devinit amd7411_cable_detect(struct pci_dev *dev, - const char *name) +static void __devinit amd7411_cable_detect(struct pci_dev *dev) { int i; u32 u = 0; @@ -129,9 +129,9 @@ static void __devinit amd7411_cable_detect(struct pci_dev *dev, amd_80w = ((t & 0x3) ? 1 : 0) | ((t & 0xc) ? 2 : 0); for (i = 24; i >= 0; i -= 8) if (((u >> i) & 4) && !(amd_80w & (1 << (1 - (i >> 4))))) { - printk(KERN_WARNING "%s: BIOS didn't set cable bits " - "correctly. Enabling workaround.\n", - name); + printk(KERN_WARNING DRV_NAME " %s: BIOS didn't set " + "cable bits correctly. Enabling workaround.\n", + pci_name(dev)); amd_80w |= (1 << (1 - (i >> 4))); } } @@ -140,8 +140,7 @@ static void __devinit amd7411_cable_detect(struct pci_dev *dev, * The initialization callback. Initialize drive independent registers. */ -static unsigned int __devinit init_chipset_amd74xx(struct pci_dev *dev, - const char *name) +static unsigned int __devinit init_chipset_amd74xx(struct pci_dev *dev) { u8 t = 0, offset = amd_offset(dev); @@ -154,9 +153,9 @@ static unsigned int __devinit init_chipset_amd74xx(struct pci_dev *dev, ; /* no UDMA > 2 */ else if (dev->vendor == PCI_VENDOR_ID_AMD && dev->device == PCI_DEVICE_ID_AMD_VIPER_7409) - amd7409_cable_detect(dev, name); + amd7409_cable_detect(dev); else - amd7411_cable_detect(dev, name); + amd7411_cable_detect(dev); /* * Take care of prefetch & postwrite. @@ -173,24 +172,6 @@ static unsigned int __devinit init_chipset_amd74xx(struct pci_dev *dev, t |= 0xf0; pci_write_config_byte(dev, AMD_IDE_CONFIG + offset, t); -/* - * Determine the system bus clock. - */ - - amd_clock = (ide_pci_clk ? ide_pci_clk : 33) * 1000; - - switch (amd_clock) { - case 33000: amd_clock = 33333; break; - case 37000: amd_clock = 37500; break; - case 41000: amd_clock = 41666; break; - } - - if (amd_clock < 20000 || amd_clock > 50000) { - printk(KERN_WARNING "%s: User given PCI clock speed impossible (%d), using 33 MHz instead.\n", - name, amd_clock); - amd_clock = 33333; - } - return dev->irq; } @@ -222,9 +203,9 @@ static const struct ide_port_ops amd_port_ops = { IDE_HFLAG_IO_32BIT | \ IDE_HFLAG_UNMASK_IRQS) -#define DECLARE_AMD_DEV(name_str, swdma, udma) \ +#define DECLARE_AMD_DEV(swdma, udma) \ { \ - .name = name_str, \ + .name = DRV_NAME, \ .init_chipset = init_chipset_amd74xx, \ .init_hwif = init_hwif_amd74xx, \ .enablebits = {{0x40,0x02,0x02}, {0x40,0x01,0x01}}, \ @@ -236,9 +217,9 @@ static const struct ide_port_ops amd_port_ops = { .udma_mask = udma, \ } -#define DECLARE_NV_DEV(name_str, udma) \ +#define DECLARE_NV_DEV(udma) \ { \ - .name = name_str, \ + .name = DRV_NAME, \ .init_chipset = init_chipset_amd74xx, \ .init_hwif = init_hwif_amd74xx, \ .enablebits = {{0x50,0x02,0x02}, {0x50,0x01,0x01}}, \ @@ -251,31 +232,15 @@ static const struct ide_port_ops amd_port_ops = { } static const struct ide_port_info amd74xx_chipsets[] __devinitdata = { - /* 0 */ DECLARE_AMD_DEV("AMD7401", 0x00, ATA_UDMA2), - /* 1 */ DECLARE_AMD_DEV("AMD7409", ATA_SWDMA2, ATA_UDMA4), - /* 2 */ DECLARE_AMD_DEV("AMD7411", ATA_SWDMA2, ATA_UDMA5), - /* 3 */ DECLARE_AMD_DEV("AMD7441", ATA_SWDMA2, ATA_UDMA5), - /* 4 */ DECLARE_AMD_DEV("AMD8111", ATA_SWDMA2, ATA_UDMA6), - - /* 5 */ DECLARE_NV_DEV("NFORCE", ATA_UDMA5), - /* 6 */ DECLARE_NV_DEV("NFORCE2", ATA_UDMA6), - /* 7 */ DECLARE_NV_DEV("NFORCE2-U400R", ATA_UDMA6), - /* 8 */ DECLARE_NV_DEV("NFORCE2-U400R-SATA", ATA_UDMA6), - /* 9 */ DECLARE_NV_DEV("NFORCE3-150", ATA_UDMA6), - /* 10 */ DECLARE_NV_DEV("NFORCE3-250", ATA_UDMA6), - /* 11 */ DECLARE_NV_DEV("NFORCE3-250-SATA", ATA_UDMA6), - /* 12 */ DECLARE_NV_DEV("NFORCE3-250-SATA2", ATA_UDMA6), - /* 13 */ DECLARE_NV_DEV("NFORCE-CK804", ATA_UDMA6), - /* 14 */ DECLARE_NV_DEV("NFORCE-MCP04", ATA_UDMA6), - /* 15 */ DECLARE_NV_DEV("NFORCE-MCP51", ATA_UDMA6), - /* 16 */ DECLARE_NV_DEV("NFORCE-MCP55", ATA_UDMA6), - /* 17 */ DECLARE_NV_DEV("NFORCE-MCP61", ATA_UDMA6), - /* 18 */ DECLARE_NV_DEV("NFORCE-MCP65", ATA_UDMA6), - /* 19 */ DECLARE_NV_DEV("NFORCE-MCP67", ATA_UDMA6), - /* 20 */ DECLARE_NV_DEV("NFORCE-MCP73", ATA_UDMA6), - /* 21 */ DECLARE_NV_DEV("NFORCE-MCP77", ATA_UDMA6), - - /* 22 */ DECLARE_AMD_DEV("AMD5536", ATA_SWDMA2, ATA_UDMA5), + /* 0: AMD7401 */ DECLARE_AMD_DEV(0x00, ATA_UDMA2), + /* 1: AMD7409 */ DECLARE_AMD_DEV(ATA_SWDMA2, ATA_UDMA4), + /* 2: AMD7411/7441 */ DECLARE_AMD_DEV(ATA_SWDMA2, ATA_UDMA5), + /* 3: AMD8111 */ DECLARE_AMD_DEV(ATA_SWDMA2, ATA_UDMA6), + + /* 4: NFORCE */ DECLARE_NV_DEV(ATA_UDMA5), + /* 5: >= NFORCE2 */ DECLARE_NV_DEV(ATA_UDMA6), + + /* 6: AMD5536 */ DECLARE_AMD_DEV(ATA_SWDMA2, ATA_UDMA5), }; static int __devinit amd74xx_probe(struct pci_dev *dev, const struct pci_device_id *id) @@ -292,47 +257,64 @@ static int __devinit amd74xx_probe(struct pci_dev *dev, const struct pci_device_ if (dev->revision <= 7) d.swdma_mask = 0; d.host_flags |= IDE_HFLAG_CLEAR_SIMPLEX; - } else if (idx == 4) { + } else if (idx == 3) { if (dev->subsystem_vendor == PCI_VENDOR_ID_AMD && dev->subsystem_device == PCI_DEVICE_ID_AMD_SERENADE) d.udma_mask = ATA_UDMA5; } - printk(KERN_INFO "%s: %s (rev %02x) UDMA%s controller\n", - d.name, pci_name(dev), dev->revision, - amd_dma[fls(d.udma_mask) - 1]); + printk(KERN_INFO "%s %s: UDMA%s controller\n", + d.name, pci_name(dev), amd_dma[fls(d.udma_mask) - 1]); + + /* + * Determine the system bus clock. + */ + amd_clock = (ide_pci_clk ? ide_pci_clk : 33) * 1000; + + switch (amd_clock) { + case 33000: amd_clock = 33333; break; + case 37000: amd_clock = 37500; break; + case 41000: amd_clock = 41666; break; + } + + if (amd_clock < 20000 || amd_clock > 50000) { + printk(KERN_WARNING "%s: User given PCI clock speed impossible" + " (%d), using 33 MHz instead.\n", + d.name, amd_clock); + amd_clock = 33333; + } - return ide_setup_pci_device(dev, &d); + return ide_pci_init_one(dev, &d, NULL); } static const struct pci_device_id amd74xx_pci_tbl[] = { { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_COBRA_7401), 0 }, { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_VIPER_7409), 1 }, { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_VIPER_7411), 2 }, - { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_OPUS_7441), 3 }, - { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_8111_IDE), 4 }, - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_IDE), 5 }, - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2_IDE), 6 }, - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2S_IDE), 7 }, + { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_OPUS_7441), 2 }, + { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_8111_IDE), 3 }, + { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_IDE), 4 }, + { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2_IDE), 5 }, + { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2S_IDE), 5 }, #ifdef CONFIG_BLK_DEV_IDE_SATA - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2S_SATA), 8 }, + { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2S_SATA), 5 }, #endif - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE3_IDE), 9 }, - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE3S_IDE), 10 }, + { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE3_IDE), 5 }, + { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE3S_IDE), 5 }, #ifdef CONFIG_BLK_DEV_IDE_SATA - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE3S_SATA), 11 }, - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE3S_SATA2), 12 }, + { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE3S_SATA), 5 }, + { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE3S_SATA2), 5 }, #endif - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_CK804_IDE), 13 }, - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP04_IDE), 14 }, - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP51_IDE), 15 }, - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP55_IDE), 16 }, - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP61_IDE), 17 }, - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP65_IDE), 18 }, - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP67_IDE), 19 }, - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP73_IDE), 20 }, - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP77_IDE), 21 }, - { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_CS5536_IDE), 22 }, + { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_CK804_IDE), 5 }, + { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP04_IDE), 5 }, + { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP51_IDE), 5 }, + { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP55_IDE), 5 }, + { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP61_IDE), 5 }, + { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP65_IDE), 5 }, + { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP67_IDE), 5 }, + { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP73_IDE), 5 }, + { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP77_IDE), 5 }, + { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_CS5536_IDE), 6 }, { 0, }, }; MODULE_DEVICE_TABLE(pci, amd74xx_pci_tbl); @@ -341,6 +323,7 @@ static struct pci_driver driver = { .name = "AMD_IDE", .id_table = amd74xx_pci_tbl, .probe = amd74xx_probe, + .remove = ide_pci_remove, }; static int __init amd74xx_ide_init(void) @@ -348,7 +331,13 @@ static int __init amd74xx_ide_init(void) return ide_pci_register_driver(&driver); } +static void __exit amd74xx_ide_exit(void) +{ + pci_unregister_driver(&driver); +} + module_init(amd74xx_ide_init); +module_exit(amd74xx_ide_exit); MODULE_AUTHOR("Vojtech Pavlik"); MODULE_DESCRIPTION("AMD PCI IDE driver"); diff --git a/drivers/ide/pci/atiixp.c b/drivers/ide/pci/atiixp.c index 8b63718..332f08f 100644 --- a/drivers/ide/pci/atiixp.c +++ b/drivers/ide/pci/atiixp.c @@ -11,6 +11,8 @@ #include <linux/ide.h> #include <linux/init.h> +#define DRV_NAME "atiixp" + #define ATIIXP_IDE_PIO_TIMING 0x40 #define ATIIXP_IDE_MDMA_TIMING 0x44 #define ATIIXP_IDE_PIO_CONTROL 0x48 @@ -137,16 +139,17 @@ static const struct ide_port_ops atiixp_port_ops = { }; static const struct ide_port_info atiixp_pci_info[] __devinitdata = { - { /* 0 */ - .name = "ATIIXP", + { /* 0: IXP200/300/400/700 */ + .name = DRV_NAME, .enablebits = {{0x48,0x01,0x00}, {0x48,0x08,0x00}}, .port_ops = &atiixp_port_ops, .host_flags = IDE_HFLAG_LEGACY_IRQS, .pio_mask = ATA_PIO4, .mwdma_mask = ATA_MWDMA2, .udma_mask = ATA_UDMA5, - },{ /* 1 */ - .name = "SB600_PATA", + }, + { /* 1: IXP600 */ + .name = DRV_NAME, .enablebits = {{0x48,0x01,0x00}, {0x00,0x00,0x00}}, .port_ops = &atiixp_port_ops, .host_flags = IDE_HFLAG_SINGLE | IDE_HFLAG_LEGACY_IRQS, @@ -167,7 +170,7 @@ static const struct ide_port_info atiixp_pci_info[] __devinitdata = { static int __devinit atiixp_init_one(struct pci_dev *dev, const struct pci_device_id *id) { - return ide_setup_pci_device(dev, &atiixp_pci_info[id->driver_data]); + return ide_pci_init_one(dev, &atiixp_pci_info[id->driver_data], NULL); } static const struct pci_device_id atiixp_pci_tbl[] = { @@ -184,6 +187,7 @@ static struct pci_driver driver = { .name = "ATIIXP_IDE", .id_table = atiixp_pci_tbl, .probe = atiixp_init_one, + .remove = ide_pci_remove, }; static int __init atiixp_ide_init(void) @@ -191,7 +195,13 @@ static int __init atiixp_ide_init(void) return ide_pci_register_driver(&driver); } +static void __exit atiixp_ide_exit(void) +{ + pci_unregister_driver(&driver); +} + module_init(atiixp_ide_init); +module_exit(atiixp_ide_exit); MODULE_AUTHOR("HUI YU"); MODULE_DESCRIPTION("PCI driver module for ATI IXP IDE"); diff --git a/drivers/ide/pci/cmd64x.c b/drivers/ide/pci/cmd64x.c index ce58bfc..1360b4f 100644 --- a/drivers/ide/pci/cmd64x.c +++ b/drivers/ide/pci/cmd64x.c @@ -19,6 +19,8 @@ #include <asm/io.h> +#define DRV_NAME "cmd64x" + #define CMD_DEBUG 0 #if CMD_DEBUG @@ -330,28 +332,10 @@ static int cmd646_1_dma_end(ide_drive_t *drive) return (dma_stat & 7) != 4; } -static unsigned int __devinit init_chipset_cmd64x(struct pci_dev *dev, const char *name) +static unsigned int __devinit init_chipset_cmd64x(struct pci_dev *dev) { u8 mrdmode = 0; - if (dev->device == PCI_DEVICE_ID_CMD_646) { - - switch (dev->revision) { - case 0x07: - case 0x05: - printk("%s: UltraDMA capable\n", name); - break; - case 0x03: - default: - printk("%s: MultiWord DMA force limited\n", name); - break; - case 0x01: - printk("%s: MultiWord DMA limited, " - "IRQ workaround enabled\n", name); - break; - } - } - /* Set a good latency timer and cache line size value. */ (void) pci_write_config_byte(dev, PCI_LATENCY_TIMER, 64); /* FIXME: pci_set_master() to ensure a good latency timer value */ @@ -425,8 +409,8 @@ static const struct ide_dma_ops cmd648_dma_ops = { }; static const struct ide_port_info cmd64x_chipsets[] __devinitdata = { - { /* 0 */ - .name = "CMD643", + { /* 0: CMD643 */ + .name = DRV_NAME, .init_chipset = init_chipset_cmd64x, .enablebits = {{0x00,0x00,0x00}, {0x51,0x08,0x08}}, .port_ops = &cmd64x_port_ops, @@ -436,8 +420,9 @@ static const struct ide_port_info cmd64x_chipsets[] __devinitdata = { .pio_mask = ATA_PIO5, .mwdma_mask = ATA_MWDMA2, .udma_mask = 0x00, /* no udma */ - },{ /* 1 */ - .name = "CMD646", + }, + { /* 1: CMD646 */ + .name = DRV_NAME, .init_chipset = init_chipset_cmd64x, .enablebits = {{0x51,0x04,0x04}, {0x51,0x08,0x08}}, .chipset = ide_cmd646, @@ -447,8 +432,9 @@ static const struct ide_port_info cmd64x_chipsets[] __devinitdata = { .pio_mask = ATA_PIO5, .mwdma_mask = ATA_MWDMA2, .udma_mask = ATA_UDMA2, - },{ /* 2 */ - .name = "CMD648", + }, + { /* 2: CMD648 */ + .name = DRV_NAME, .init_chipset = init_chipset_cmd64x, .enablebits = {{0x51,0x04,0x04}, {0x51,0x08,0x08}}, .port_ops = &cmd64x_port_ops, @@ -457,8 +443,9 @@ static const struct ide_port_info cmd64x_chipsets[] __devinitdata = { .pio_mask = ATA_PIO5, .mwdma_mask = ATA_MWDMA2, .udma_mask = ATA_UDMA4, - },{ /* 3 */ - .name = "CMD649", + }, + { /* 3: CMD649 */ + .name = DRV_NAME, .init_chipset = init_chipset_cmd64x, .enablebits = {{0x51,0x04,0x04}, {0x51,0x08,0x08}}, .port_ops = &cmd64x_port_ops, @@ -507,7 +494,7 @@ static int __devinit cmd64x_init_one(struct pci_dev *dev, const struct pci_devic } } - return ide_setup_pci_device(dev, &d); + return ide_pci_init_one(dev, &d, NULL); } static const struct pci_device_id cmd64x_pci_tbl[] = { @@ -523,6 +510,7 @@ static struct pci_driver driver = { .name = "CMD64x_IDE", .id_table = cmd64x_pci_tbl, .probe = cmd64x_init_one, + .remove = ide_pci_remove, }; static int __init cmd64x_ide_init(void) @@ -530,7 +518,13 @@ static int __init cmd64x_ide_init(void) return ide_pci_register_driver(&driver); } +static void __exit cmd64x_ide_exit(void) +{ + pci_unregister_driver(&driver); +} + module_init(cmd64x_ide_init); +module_exit(cmd64x_ide_exit); MODULE_AUTHOR("Eddie Dost, David Miller, Andre Hedrick"); MODULE_DESCRIPTION("PCI driver module for CMD64x IDE"); diff --git a/drivers/ide/pci/cs5520.c b/drivers/ide/pci/cs5520.c index b03d8ae..c0364b2 100644 --- a/drivers/ide/pci/cs5520.c +++ b/drivers/ide/pci/cs5520.c @@ -41,6 +41,8 @@ #include <linux/ide.h> #include <linux/dma-mapping.h> +#define DRV_NAME "cs5520" + struct pio_clocks { int address; @@ -92,18 +94,11 @@ static const struct ide_port_ops cs5520_port_ops = { .set_dma_mode = cs5520_set_dma_mode, }; -#define DECLARE_CS_DEV(name_str) \ - { \ - .name = name_str, \ - .port_ops = &cs5520_port_ops, \ - .host_flags = IDE_HFLAG_ISA_PORTS | \ - IDE_HFLAG_CS5520, \ - .pio_mask = ATA_PIO4, \ - } - -static const struct ide_port_info cyrix_chipsets[] __devinitdata = { - /* 0 */ DECLARE_CS_DEV("Cyrix 5510"), - /* 1 */ DECLARE_CS_DEV("Cyrix 5520") +static const struct ide_port_info cyrix_chipset __devinitdata = { + .name = DRV_NAME, + .port_ops = &cs5520_port_ops, + .host_flags = IDE_HFLAG_ISA_PORTS | IDE_HFLAG_CS5520, + .pio_mask = ATA_PIO4, }; /* @@ -114,7 +109,7 @@ static const struct ide_port_info cyrix_chipsets[] __devinitdata = { static int __devinit cs5520_init_one(struct pci_dev *dev, const struct pci_device_id *id) { - const struct ide_port_info *d = &cyrix_chipsets[id->driver_data]; + const struct ide_port_info *d = &cyrix_chipset; hw_regs_t hw[4], *hws[] = { NULL, NULL, NULL, NULL }; ide_setup_pci_noise(dev, d); @@ -128,7 +123,8 @@ static int __devinit cs5520_init_one(struct pci_dev *dev, const struct pci_devic } pci_set_master(dev); if (pci_set_dma_mask(dev, DMA_32BIT_MASK)) { - printk(KERN_WARNING "cs5520: No suitable DMA available.\n"); + printk(KERN_WARNING "%s: No suitable DMA available.\n", + d->name); return -ENODEV; } diff --git a/drivers/ide/pci/cs5530.c b/drivers/ide/pci/cs5530.c index f5534c1f..f235db8 100644 --- a/drivers/ide/pci/cs5530.c +++ b/drivers/ide/pci/cs5530.c @@ -22,6 +22,8 @@ #include <asm/io.h> +#define DRV_NAME "cs5530" + /* * Here are the standard PIO mode 0-4 timings for each "format". * Format-0 uses fast data reg timings, with slower command reg timings. @@ -127,12 +129,11 @@ static void cs5530_set_dma_mode(ide_drive_t *drive, const u8 mode) /** * init_chipset_5530 - set up 5530 bridge * @dev: PCI device - * @name: device name * * Initialize the cs5530 bridge for reliable IDE DMA operation. */ -static unsigned int __devinit init_chipset_cs5530 (struct pci_dev *dev, const char *name) +static unsigned int __devinit init_chipset_cs5530(struct pci_dev *dev) { struct pci_dev *master_0 = NULL, *cs5530_0 = NULL; @@ -151,11 +152,11 @@ static unsigned int __devinit init_chipset_cs5530 (struct pci_dev *dev, const ch } } if (!master_0) { - printk(KERN_ERR "%s: unable to locate PCI MASTER function\n", name); + printk(KERN_ERR DRV_NAME ": unable to locate PCI MASTER function\n"); goto out; } if (!cs5530_0) { - printk(KERN_ERR "%s: unable to locate CS5530 LEGACY function\n", name); + printk(KERN_ERR DRV_NAME ": unable to locate CS5530 LEGACY function\n"); goto out; } @@ -243,7 +244,7 @@ static const struct ide_port_ops cs5530_port_ops = { }; static const struct ide_port_info cs5530_chipset __devinitdata = { - .name = "CS5530", + .name = DRV_NAME, .init_chipset = init_chipset_cs5530, .init_hwif = init_hwif_cs5530, .port_ops = &cs5530_port_ops, @@ -256,7 +257,7 @@ static const struct ide_port_info cs5530_chipset __devinitdata = { static int __devinit cs5530_init_one(struct pci_dev *dev, const struct pci_device_id *id) { - return ide_setup_pci_device(dev, &cs5530_chipset); + return ide_pci_init_one(dev, &cs5530_chipset, NULL); } static const struct pci_device_id cs5530_pci_tbl[] = { @@ -269,6 +270,7 @@ static struct pci_driver driver = { .name = "CS5530 IDE", .id_table = cs5530_pci_tbl, .probe = cs5530_init_one, + .remove = ide_pci_remove, }; static int __init cs5530_ide_init(void) @@ -276,7 +278,13 @@ static int __init cs5530_ide_init(void) return ide_pci_register_driver(&driver); } +static void __exit cs5530_ide_exit(void) +{ + pci_unregister_driver(&driver); +} + module_init(cs5530_ide_init); +module_exit(cs5530_ide_exit); MODULE_AUTHOR("Mark Lord"); MODULE_DESCRIPTION("PCI driver module for Cyrix/NS 5530 IDE"); diff --git a/drivers/ide/pci/cs5535.c b/drivers/ide/pci/cs5535.c index 5404fe4..f7b50cd 100644 --- a/drivers/ide/pci/cs5535.c +++ b/drivers/ide/pci/cs5535.c @@ -26,6 +26,8 @@ #include <linux/pci.h> #include <linux/ide.h> +#define DRV_NAME "cs5535" + #define MSR_ATAC_BASE 0x51300000 #define ATAC_GLD_MSR_CAP (MSR_ATAC_BASE+0) #define ATAC_GLD_MSR_CONFIG (MSR_ATAC_BASE+0x01) @@ -169,7 +171,7 @@ static const struct ide_port_ops cs5535_port_ops = { }; static const struct ide_port_info cs5535_chipset __devinitdata = { - .name = "CS5535", + .name = DRV_NAME, .port_ops = &cs5535_port_ops, .host_flags = IDE_HFLAG_SINGLE | IDE_HFLAG_POST_SET_MODE, .pio_mask = ATA_PIO4, @@ -180,7 +182,7 @@ static const struct ide_port_info cs5535_chipset __devinitdata = { static int __devinit cs5535_init_one(struct pci_dev *dev, const struct pci_device_id *id) { - return ide_setup_pci_device(dev, &cs5535_chipset); + return ide_pci_init_one(dev, &cs5535_chipset, NULL); } static const struct pci_device_id cs5535_pci_tbl[] = { @@ -194,6 +196,7 @@ static struct pci_driver driver = { .name = "CS5535_IDE", .id_table = cs5535_pci_tbl, .probe = cs5535_init_one, + .remove = ide_pci_remove, }; static int __init cs5535_ide_init(void) @@ -201,7 +204,13 @@ static int __init cs5535_ide_init(void) return ide_pci_register_driver(&driver); } +static void __exit cs5535_ide_exit(void) +{ + pci_unregister_driver(&driver); +} + module_init(cs5535_ide_init); +module_exit(cs5535_ide_exit); MODULE_AUTHOR("AMD"); MODULE_DESCRIPTION("PCI driver module for AMD/NS CS5535 IDE"); diff --git a/drivers/ide/pci/cy82c693.c b/drivers/ide/pci/cy82c693.c index e14ad55..bfae2f8 100644 --- a/drivers/ide/pci/cy82c693.c +++ b/drivers/ide/pci/cy82c693.c @@ -48,6 +48,8 @@ #include <asm/io.h> +#define DRV_NAME "cy82c693" + /* the current version */ #define CY82_VERSION "CY82C693U driver v0.34 99-13-12 Andreas S. Krebs (akrebs@altavista.net)" @@ -330,7 +332,7 @@ static void cy82c693_set_pio_mode(ide_drive_t *drive, const u8 pio) /* * this function is called during init and is used to setup the cy82c693 chip */ -static unsigned int __devinit init_chipset_cy82c693(struct pci_dev *dev, const char *name) +static unsigned int __devinit init_chipset_cy82c693(struct pci_dev *dev) { if (PCI_FUNC(dev->devfn) != 1) return 0; @@ -349,8 +351,8 @@ static unsigned int __devinit init_chipset_cy82c693(struct pci_dev *dev, const c data = inb(CY82_DATA_PORT); #if CY82C693_DEBUG_INFO - printk(KERN_INFO "%s: Peripheral Configuration Register: 0x%X\n", - name, data); + printk(KERN_INFO DRV_NAME ": Peripheral Configuration Register: 0x%X\n", + data); #endif /* CY82C693_DEBUG_INFO */ /* @@ -371,8 +373,8 @@ static unsigned int __devinit init_chipset_cy82c693(struct pci_dev *dev, const c outb(data, CY82_DATA_PORT); #if CY82C693_DEBUG_INFO - printk(KERN_INFO "%s: New Peripheral Configuration Register: 0x%X\n", - name, data); + printk(KERN_INFO ": New Peripheral Configuration Register: 0x%X\n", + data); #endif /* CY82C693_DEBUG_INFO */ #endif /* CY82C693_SETDMA_CLOCK */ @@ -398,7 +400,7 @@ static const struct ide_port_ops cy82c693_port_ops = { }; static const struct ide_port_info cy82c693_chipset __devinitdata = { - .name = "CY82C693", + .name = DRV_NAME, .init_chipset = init_chipset_cy82c693, .init_iops = init_iops_cy82c693, .port_ops = &cy82c693_port_ops, @@ -419,12 +421,22 @@ static int __devinit cy82c693_init_one(struct pci_dev *dev, const struct pci_dev if ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE && PCI_FUNC(dev->devfn) == 1) { dev2 = pci_get_slot(dev->bus, dev->devfn + 1); - ret = ide_setup_pci_devices(dev, dev2, &cy82c693_chipset); - /* We leak pci refs here but thats ok - we can't be unloaded */ + ret = ide_pci_init_two(dev, dev2, &cy82c693_chipset, NULL); + if (ret) + pci_dev_put(dev2); } return ret; } +static void __devexit cy82c693_remove(struct pci_dev *dev) +{ + struct ide_host *host = pci_get_drvdata(dev); + struct pci_dev *dev2 = host->dev[1] ? to_pci_dev(host->dev[1]) : NULL; + + ide_pci_remove(dev); + pci_dev_put(dev2); +} + static const struct pci_device_id cy82c693_pci_tbl[] = { { PCI_VDEVICE(CONTAQ, PCI_DEVICE_ID_CONTAQ_82C693), 0 }, { 0, }, @@ -435,6 +447,7 @@ static struct pci_driver driver = { .name = "Cypress_IDE", .id_table = cy82c693_pci_tbl, .probe = cy82c693_init_one, + .remove = cy82c693_remove, }; static int __init cy82c693_ide_init(void) @@ -442,7 +455,13 @@ static int __init cy82c693_ide_init(void) return ide_pci_register_driver(&driver); } +static void __exit cy82c693_ide_exit(void) +{ + pci_unregister_driver(&driver); +} + module_init(cy82c693_ide_init); +module_exit(cy82c693_ide_exit); MODULE_AUTHOR("Andreas Krebs, Andre Hedrick"); MODULE_DESCRIPTION("PCI driver module for the Cypress CY82C693 IDE"); diff --git a/drivers/ide/pci/generic.c b/drivers/ide/pci/generic.c index 041720e..b07d4f4 100644 --- a/drivers/ide/pci/generic.c +++ b/drivers/ide/pci/generic.c @@ -27,6 +27,8 @@ #include <linux/ide.h> #include <linux/init.h> +#define DRV_NAME "ide_pci_generic" + static int ide_generic_all; /* Set to claim all devices */ module_param_named(all_generic_ide, ide_generic_all, bool, 0444); @@ -34,9 +36,9 @@ MODULE_PARM_DESC(all_generic_ide, "IDE generic will claim all unknown PCI IDE st #define IDE_HFLAGS_UMC (IDE_HFLAG_NO_DMA | IDE_HFLAG_FORCE_LEGACY_IRQS) -#define DECLARE_GENERIC_PCI_DEV(name_str, extra_flags) \ +#define DECLARE_GENERIC_PCI_DEV(extra_flags) \ { \ - .name = name_str, \ + .name = DRV_NAME, \ .host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA | \ extra_flags, \ .swdma_mask = ATA_SWDMA2, \ @@ -45,10 +47,11 @@ MODULE_PARM_DESC(all_generic_ide, "IDE generic will claim all unknown PCI IDE st } static const struct ide_port_info generic_chipsets[] __devinitdata = { - /* 0 */ DECLARE_GENERIC_PCI_DEV("Unknown", 0), + /* 0: Unknown */ + DECLARE_GENERIC_PCI_DEV(0), - { /* 1 */ - .name = "NS87410", + { /* 1: NS87410 */ + .name = DRV_NAME, .enablebits = { {0x43, 0x08, 0x08}, {0x47, 0x08, 0x08} }, .host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA, .swdma_mask = ATA_SWDMA2, @@ -56,17 +59,15 @@ static const struct ide_port_info generic_chipsets[] __devinitdata = { .udma_mask = ATA_UDMA6, }, - /* 2 */ DECLARE_GENERIC_PCI_DEV("SAMURAI", 0), - /* 3 */ DECLARE_GENERIC_PCI_DEV("HT6565", 0), - /* 4 */ DECLARE_GENERIC_PCI_DEV("UM8673F", IDE_HFLAGS_UMC), - /* 5 */ DECLARE_GENERIC_PCI_DEV("UM8886A", IDE_HFLAGS_UMC), - /* 6 */ DECLARE_GENERIC_PCI_DEV("UM8886BF", IDE_HFLAGS_UMC), - /* 7 */ DECLARE_GENERIC_PCI_DEV("HINT_IDE", 0), - /* 8 */ DECLARE_GENERIC_PCI_DEV("VIA_IDE", IDE_HFLAG_NO_AUTODMA), - /* 9 */ DECLARE_GENERIC_PCI_DEV("OPTI621V", IDE_HFLAG_NO_AUTODMA), - - { /* 10 */ - .name = "VIA8237SATA", + /* 2: SAMURAI / HT6565 / HINT_IDE */ + DECLARE_GENERIC_PCI_DEV(0), + /* 3: UM8673F / UM8886A / UM8886BF */ + DECLARE_GENERIC_PCI_DEV(IDE_HFLAGS_UMC), + /* 4: VIA_IDE / OPTI621V / Piccolo010{2,3,5} */ + DECLARE_GENERIC_PCI_DEV(IDE_HFLAG_NO_AUTODMA), + + { /* 5: VIA8237SATA */ + .name = DRV_NAME, .host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA | IDE_HFLAG_OFF_BOARD, .swdma_mask = ATA_SWDMA2, @@ -74,12 +75,8 @@ static const struct ide_port_info generic_chipsets[] __devinitdata = { .udma_mask = ATA_UDMA6, }, - /* 11 */ DECLARE_GENERIC_PCI_DEV("Piccolo0102", IDE_HFLAG_NO_AUTODMA), - /* 12 */ DECLARE_GENERIC_PCI_DEV("Piccolo0103", IDE_HFLAG_NO_AUTODMA), - /* 13 */ DECLARE_GENERIC_PCI_DEV("Piccolo0105", IDE_HFLAG_NO_AUTODMA), - - { /* 14 */ - .name = "Revolution", + { /* 6: Revolution */ + .name = DRV_NAME, .host_flags = IDE_HFLAG_CLEAR_SIMPLEX | IDE_HFLAG_TRUST_BIOS_FOR_DMA | IDE_HFLAG_OFF_BOARD, @@ -134,12 +131,12 @@ static int __devinit generic_init_one(struct pci_dev *dev, const struct pci_devi u16 command; pci_read_config_word(dev, PCI_COMMAND, &command); if (!(command & PCI_COMMAND_IO)) { - printk(KERN_INFO "Skipping disabled %s IDE " - "controller.\n", d->name); + printk(KERN_INFO "%s %s: skipping disabled " + "controller\n", d->name, pci_name(dev)); goto out; } } - ret = ide_setup_pci_device(dev, d); + ret = ide_pci_init_one(dev, d, NULL); out: return ret; } @@ -147,20 +144,20 @@ out: static const struct pci_device_id generic_pci_tbl[] = { { PCI_VDEVICE(NS, PCI_DEVICE_ID_NS_87410), 1 }, { PCI_VDEVICE(PCTECH, PCI_DEVICE_ID_PCTECH_SAMURAI_IDE), 2 }, - { PCI_VDEVICE(HOLTEK, PCI_DEVICE_ID_HOLTEK_6565), 3 }, - { PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8673F), 4 }, - { PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8886A), 5 }, - { PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8886BF), 6 }, - { PCI_VDEVICE(HINT, PCI_DEVICE_ID_HINT_VXPROII_IDE), 7 }, - { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_82C561), 8 }, - { PCI_VDEVICE(OPTI, PCI_DEVICE_ID_OPTI_82C558), 9 }, + { PCI_VDEVICE(HOLTEK, PCI_DEVICE_ID_HOLTEK_6565), 2 }, + { PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8673F), 3 }, + { PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8886A), 3 }, + { PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8886BF), 3 }, + { PCI_VDEVICE(HINT, PCI_DEVICE_ID_HINT_VXPROII_IDE), 2 }, + { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_82C561), 4 }, + { PCI_VDEVICE(OPTI, PCI_DEVICE_ID_OPTI_82C558), 4 }, #ifdef CONFIG_BLK_DEV_IDE_SATA - { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_8237_SATA), 10 }, + { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_8237_SATA), 5 }, #endif - { PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO), 11 }, - { PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO_1), 12 }, - { PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO_2), 13 }, - { PCI_VDEVICE(NETCELL, PCI_DEVICE_ID_REVOLUTION), 14 }, + { PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO), 4 }, + { PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO_1), 4 }, + { PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO_2), 4 }, + { PCI_VDEVICE(NETCELL, PCI_DEVICE_ID_REVOLUTION), 6 }, /* * Must come last. If you add entries adjust * this table and generic_chipsets[] appropriately. @@ -174,6 +171,7 @@ static struct pci_driver driver = { .name = "PCI_IDE", .id_table = generic_pci_tbl, .probe = generic_init_one, + .remove = ide_pci_remove, }; static int __init generic_ide_init(void) @@ -181,7 +179,13 @@ static int __init generic_ide_init(void) return ide_pci_register_driver(&driver); } +static void __exit generic_ide_exit(void) +{ + pci_unregister_driver(&driver); +} + module_init(generic_ide_init); +module_exit(generic_ide_exit); MODULE_AUTHOR("Andre Hedrick"); MODULE_DESCRIPTION("PCI driver module for generic PCI IDE"); diff --git a/drivers/ide/pci/hpt34x.c b/drivers/ide/pci/hpt34x.c index 9e1d1c4..6009b0b 100644 --- a/drivers/ide/pci/hpt34x.c +++ b/drivers/ide/pci/hpt34x.c @@ -33,6 +33,8 @@ #include <linux/init.h> #include <linux/ide.h> +#define DRV_NAME "hpt34x" + #define HPT343_DEBUG_DRIVE_INFO 0 static void hpt34x_set_mode(ide_drive_t *drive, const u8 speed) @@ -77,7 +79,7 @@ static void hpt34x_set_pio_mode(ide_drive_t *drive, const u8 pio) */ #define HPT34X_PCI_INIT_REG 0x80 -static unsigned int __devinit init_chipset_hpt34x(struct pci_dev *dev, const char *name) +static unsigned int __devinit init_chipset_hpt34x(struct pci_dev *dev) { int i = 0; unsigned long hpt34xIoBase = pci_resource_start(dev, 4); @@ -126,15 +128,15 @@ static const struct ide_port_ops hpt34x_port_ops = { IDE_HFLAG_NO_AUTODMA) static const struct ide_port_info hpt34x_chipsets[] __devinitdata = { - { /* 0 */ - .name = "HPT343", + { /* 0: HPT343 */ + .name = DRV_NAME, .init_chipset = init_chipset_hpt34x, .port_ops = &hpt34x_port_ops, .host_flags = IDE_HFLAGS_HPT34X | IDE_HFLAG_NON_BOOTABLE, .pio_mask = ATA_PIO5, }, - { /* 1 */ - .name = "HPT345", + { /* 1: HPT345 */ + .name = DRV_NAME, .init_chipset = init_chipset_hpt34x, .port_ops = &hpt34x_port_ops, .host_flags = IDE_HFLAGS_HPT34X | IDE_HFLAG_OFF_BOARD, @@ -156,7 +158,7 @@ static int __devinit hpt34x_init_one(struct pci_dev *dev, const struct pci_devic d = &hpt34x_chipsets[(pcicmd & PCI_COMMAND_MEMORY) ? 1 : 0]; - return ide_setup_pci_device(dev, d); + return ide_pci_init_one(dev, d, NULL); } static const struct pci_device_id hpt34x_pci_tbl[] = { @@ -169,6 +171,7 @@ static struct pci_driver driver = { .name = "HPT34x_IDE", .id_table = hpt34x_pci_tbl, .probe = hpt34x_init_one, + .remove = ide_pci_remove, }; static int __init hpt34x_ide_init(void) @@ -176,7 +179,13 @@ static int __init hpt34x_ide_init(void) return ide_pci_register_driver(&driver); } +static void __exit hpt34x_ide_exit(void) +{ + pci_unregister_driver(&driver); +} + module_init(hpt34x_ide_init); +module_exit(hpt34x_ide_exit); MODULE_AUTHOR("Andre Hedrick"); MODULE_DESCRIPTION("PCI driver module for Highpoint 34x IDE"); diff --git a/drivers/ide/pci/hpt366.c b/drivers/ide/pci/hpt366.c index 1f1135c..5271b24 100644 --- a/drivers/ide/pci/hpt366.c +++ b/drivers/ide/pci/hpt366.c @@ -131,6 +131,8 @@ #include <asm/uaccess.h> #include <asm/io.h> +#define DRV_NAME "hpt366" + /* various tuning parameters */ #define HPT_RESET_STATE_ENGINE #undef HPT_DELAY_INTERRUPT @@ -620,7 +622,8 @@ static u8 hpt3xx_udma_filter(ide_drive_t *drive) { ide_hwif_t *hwif = HWIF(drive); struct pci_dev *dev = to_pci_dev(hwif->dev); - struct hpt_info *info = pci_get_drvdata(dev); + struct ide_host *host = pci_get_drvdata(dev); + struct hpt_info *info = host->host_priv + (hwif->dev == host->dev[1]); u8 mask = hwif->ultra_mask; switch (info->chip_type) { @@ -660,7 +663,8 @@ static u8 hpt3xx_mdma_filter(ide_drive_t *drive) { ide_hwif_t *hwif = HWIF(drive); struct pci_dev *dev = to_pci_dev(hwif->dev); - struct hpt_info *info = pci_get_drvdata(dev); + struct ide_host *host = pci_get_drvdata(dev); + struct hpt_info *info = host->host_priv + (hwif->dev == host->dev[1]); switch (info->chip_type) { case HPT372 : @@ -694,8 +698,10 @@ static u32 get_speed_setting(u8 speed, struct hpt_info *info) static void hpt3xx_set_mode(ide_drive_t *drive, const u8 speed) { - struct pci_dev *dev = to_pci_dev(drive->hwif->dev); - struct hpt_info *info = pci_get_drvdata(dev); + ide_hwif_t *hwif = drive->hwif; + struct pci_dev *dev = to_pci_dev(hwif->dev); + struct ide_host *host = pci_get_drvdata(dev); + struct hpt_info *info = host->host_priv + (hwif->dev == host->dev[1]); struct hpt_timings *t = info->timings; u8 itr_addr = 0x40 + (drive->dn * 4); u32 old_itr = 0; @@ -738,7 +744,8 @@ static void hpt3xx_maskproc(ide_drive_t *drive, int mask) { ide_hwif_t *hwif = HWIF(drive); struct pci_dev *dev = to_pci_dev(hwif->dev); - struct hpt_info *info = pci_get_drvdata(dev); + struct ide_host *host = pci_get_drvdata(dev); + struct hpt_info *info = host->host_priv + (hwif->dev == host->dev[1]); if (drive->quirk_list) { if (info->chip_type >= HPT370) { @@ -963,24 +970,16 @@ static int __devinit hpt37x_calibrate_dpll(struct pci_dev *dev, u16 f_low, u16 f return 1; } -static unsigned int __devinit init_chipset_hpt366(struct pci_dev *dev, const char *name) +static unsigned int __devinit init_chipset_hpt366(struct pci_dev *dev) { - struct hpt_info *info = kmalloc(sizeof(struct hpt_info), GFP_KERNEL); unsigned long io_base = pci_resource_start(dev, 4); + struct ide_host *host = pci_get_drvdata(dev); + struct hpt_info *info = host->host_priv + (&dev->dev == host->dev[1]); + const char *name = DRV_NAME; u8 pci_clk, dpll_clk = 0; /* PCI and DPLL clock in MHz */ u8 chip_type; enum ata_clock clock; - if (info == NULL) { - printk(KERN_ERR "%s: out of memory!\n", name); - return -ENOMEM; - } - - /* - * Copy everything from a static "template" structure - * to just allocated per-chip hpt_info structure. - */ - memcpy(info, pci_get_drvdata(dev), sizeof(struct hpt_info)); chip_type = info->chip_type; pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, (L1_CACHE_BYTES / 4)); @@ -1048,8 +1047,8 @@ static unsigned int __devinit init_chipset_hpt366(struct pci_dev *dev, const cha if ((temp & 0xFFFFF000) != 0xABCDE000) { int i; - printk(KERN_WARNING "%s: no clock data saved by BIOS\n", - name); + printk(KERN_WARNING "%s %s: no clock data saved by " + "BIOS\n", name, pci_name(dev)); /* Calculate the average value of f_CNT. */ for (temp = i = 0; i < 128; i++) { @@ -1074,8 +1073,9 @@ static unsigned int __devinit init_chipset_hpt366(struct pci_dev *dev, const cha else pci_clk = 66; - printk(KERN_INFO "%s: DPLL base: %d MHz, f_CNT: %d, " - "assuming %d MHz PCI\n", name, dpll_clk, f_cnt, pci_clk); + printk(KERN_INFO "%s %s: DPLL base: %d MHz, f_CNT: %d, " + "assuming %d MHz PCI\n", name, pci_name(dev), + dpll_clk, f_cnt, pci_clk); } else { u32 itr1 = 0; @@ -1141,8 +1141,8 @@ static unsigned int __devinit init_chipset_hpt366(struct pci_dev *dev, const cha } if (info->timings->clock_table[clock] == NULL) { - printk(KERN_ERR "%s: unknown bus timing!\n", name); - kfree(info); + printk(KERN_ERR "%s %s: unknown bus timing!\n", + name, pci_name(dev)); return -EIO; } @@ -1168,17 +1168,19 @@ static unsigned int __devinit init_chipset_hpt366(struct pci_dev *dev, const cha f_low += adjust >> 1; } if (adjust == 8) { - printk(KERN_ERR "%s: DPLL did not stabilize!\n", name); - kfree(info); + printk(KERN_ERR "%s %s: DPLL did not stabilize!\n", + name, pci_name(dev)); return -EIO; } - printk("%s: using %d MHz DPLL clock\n", name, dpll_clk); + printk(KERN_INFO "%s %s: using %d MHz DPLL clock\n", + name, pci_name(dev), dpll_clk); } else { /* Mark the fact that we're not using the DPLL. */ dpll_clk = 0; - printk("%s: using %d MHz PCI clock\n", name, pci_clk); + printk(KERN_INFO "%s %s: using %d MHz PCI clock\n", + name, pci_name(dev), pci_clk); } /* Store the clock frequencies. */ @@ -1186,9 +1188,6 @@ static unsigned int __devinit init_chipset_hpt366(struct pci_dev *dev, const cha info->pci_clk = pci_clk; info->clock = clock; - /* Point to this chip's own instance of the hpt_info structure. */ - pci_set_drvdata(dev, info); - if (chip_type >= HPT370) { u8 mcr1, mcr4; @@ -1218,7 +1217,8 @@ static unsigned int __devinit init_chipset_hpt366(struct pci_dev *dev, const cha static u8 __devinit hpt3xx_cable_detect(ide_hwif_t *hwif) { struct pci_dev *dev = to_pci_dev(hwif->dev); - struct hpt_info *info = pci_get_drvdata(dev); + struct ide_host *host = pci_get_drvdata(dev); + struct hpt_info *info = host->host_priv + (hwif->dev == host->dev[1]); u8 chip_type = info->chip_type; u8 scr1 = 0, ata66 = hwif->channel ? 0x01 : 0x02; @@ -1262,7 +1262,8 @@ static u8 __devinit hpt3xx_cable_detect(ide_hwif_t *hwif) static void __devinit init_hwif_hpt366(ide_hwif_t *hwif) { struct pci_dev *dev = to_pci_dev(hwif->dev); - struct hpt_info *info = pci_get_drvdata(dev); + struct ide_host *host = pci_get_drvdata(dev); + struct hpt_info *info = host->host_priv + (hwif->dev == host->dev[1]); int serialize = HPT_SERIALIZE_IO; u8 chip_type = info->chip_type; u8 new_mcr, old_mcr = 0; @@ -1364,7 +1365,8 @@ static void __devinit hpt374_init(struct pci_dev *dev, struct pci_dev *dev2) if (dev2->irq != dev->irq) { /* FIXME: we need a core pci_set_interrupt() */ dev2->irq = dev->irq; - printk(KERN_INFO "HPT374: PCI config space interrupt fixed\n"); + printk(KERN_INFO DRV_NAME " %s: PCI config space interrupt " + "fixed\n", pci_name(dev2)); } } @@ -1399,8 +1401,8 @@ static int __devinit hpt36x_init(struct pci_dev *dev, struct pci_dev *dev2) pci_read_config_byte(dev2, PCI_INTERRUPT_PIN, &pin2); if (pin1 != pin2 && dev->irq == dev2->irq) { - printk(KERN_INFO "HPT36x: onboard version of chipset, " - "pin1=%d pin2=%d\n", pin1, pin2); + printk(KERN_INFO DRV_NAME " %s: onboard version of chipset, " + "pin1=%d pin2=%d\n", pci_name(dev), pin1, pin2); return 1; } @@ -1455,8 +1457,8 @@ static const struct ide_dma_ops hpt36x_dma_ops = { }; static const struct ide_port_info hpt366_chipsets[] __devinitdata = { - { /* 0 */ - .name = "HPT36x", + { /* 0: HPT36x */ + .name = DRV_NAME, .init_chipset = init_chipset_hpt366, .init_hwif = init_hwif_hpt366, .init_dma = init_dma_hpt366, @@ -1472,53 +1474,9 @@ static const struct ide_port_info hpt366_chipsets[] __devinitdata = { .host_flags = IDE_HFLAGS_HPT3XX | IDE_HFLAG_SINGLE, .pio_mask = ATA_PIO4, .mwdma_mask = ATA_MWDMA2, - },{ /* 1 */ - .name = "HPT372A", - .init_chipset = init_chipset_hpt366, - .init_hwif = init_hwif_hpt366, - .init_dma = init_dma_hpt366, - .enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}}, - .port_ops = &hpt3xx_port_ops, - .dma_ops = &hpt37x_dma_ops, - .host_flags = IDE_HFLAGS_HPT3XX, - .pio_mask = ATA_PIO4, - .mwdma_mask = ATA_MWDMA2, - },{ /* 2 */ - .name = "HPT302", - .init_chipset = init_chipset_hpt366, - .init_hwif = init_hwif_hpt366, - .init_dma = init_dma_hpt366, - .enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}}, - .port_ops = &hpt3xx_port_ops, - .dma_ops = &hpt37x_dma_ops, - .host_flags = IDE_HFLAGS_HPT3XX, - .pio_mask = ATA_PIO4, - .mwdma_mask = ATA_MWDMA2, - },{ /* 3 */ - .name = "HPT371", - .init_chipset = init_chipset_hpt366, - .init_hwif = init_hwif_hpt366, - .init_dma = init_dma_hpt366, - .enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}}, - .port_ops = &hpt3xx_port_ops, - .dma_ops = &hpt37x_dma_ops, - .host_flags = IDE_HFLAGS_HPT3XX, - .pio_mask = ATA_PIO4, - .mwdma_mask = ATA_MWDMA2, - },{ /* 4 */ - .name = "HPT374", - .init_chipset = init_chipset_hpt366, - .init_hwif = init_hwif_hpt366, - .init_dma = init_dma_hpt366, - .enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}}, - .udma_mask = ATA_UDMA5, - .port_ops = &hpt3xx_port_ops, - .dma_ops = &hpt37x_dma_ops, - .host_flags = IDE_HFLAGS_HPT3XX, - .pio_mask = ATA_PIO4, - .mwdma_mask = ATA_MWDMA2, - },{ /* 5 */ - .name = "HPT372N", + }, + { /* 1: HPT3xx */ + .name = DRV_NAME, .init_chipset = init_chipset_hpt366, .init_hwif = init_hwif_hpt366, .init_dma = init_dma_hpt366, @@ -1542,10 +1500,12 @@ static const struct ide_port_info hpt366_chipsets[] __devinitdata = { static int __devinit hpt366_init_one(struct pci_dev *dev, const struct pci_device_id *id) { const struct hpt_info *info = NULL; + struct hpt_info *dyn_info; struct pci_dev *dev2 = NULL; struct ide_port_info d; u8 idx = id->driver_data; u8 rev = dev->revision; + int ret; if ((idx == 0 || idx == 4) && (PCI_FUNC(dev->devfn) & 1)) return -ENODEV; @@ -1582,24 +1542,35 @@ static int __devinit hpt366_init_one(struct pci_dev *dev, const struct pci_devic break; } - d = hpt366_chipsets[idx]; + printk(KERN_INFO DRV_NAME ": %s chipset detected\n", info->chip_name); + + d = hpt366_chipsets[min_t(u8, idx, 1)]; - d.name = info->chip_name; d.udma_mask = info->udma_mask; /* fixup ->dma_ops for HPT370/HPT370A */ if (info == &hpt370 || info == &hpt370a) d.dma_ops = &hpt370_dma_ops; - pci_set_drvdata(dev, (void *)info); - if (info == &hpt36x || info == &hpt374) dev2 = pci_get_slot(dev->bus, dev->devfn + 1); - if (dev2) { - int ret; + dyn_info = kzalloc(sizeof(*dyn_info) * (dev2 ? 2 : 1), GFP_KERNEL); + if (dyn_info == NULL) { + printk(KERN_ERR "%s %s: out of memory!\n", + d.name, pci_name(dev)); + pci_dev_put(dev2); + return -ENOMEM; + } + + /* + * Copy everything from a static "template" structure + * to just allocated per-chip hpt_info structure. + */ + memcpy(dyn_info, info, sizeof(*dyn_info)); - pci_set_drvdata(dev2, (void *)info); + if (dev2) { + memcpy(dyn_info + 1, info, sizeof(*dyn_info)); if (info == &hpt374) hpt374_init(dev, dev2); @@ -1608,13 +1579,30 @@ static int __devinit hpt366_init_one(struct pci_dev *dev, const struct pci_devic d.host_flags &= ~IDE_HFLAG_NON_BOOTABLE; } - ret = ide_setup_pci_devices(dev, dev2, &d); - if (ret < 0) + ret = ide_pci_init_two(dev, dev2, &d, dyn_info); + if (ret < 0) { pci_dev_put(dev2); + kfree(dyn_info); + } return ret; } - return ide_setup_pci_device(dev, &d); + ret = ide_pci_init_one(dev, &d, dyn_info); + if (ret < 0) + kfree(dyn_info); + + return ret; +} + +static void __devexit hpt366_remove(struct pci_dev *dev) +{ + struct ide_host *host = pci_get_drvdata(dev); + struct ide_info *info = host->host_priv; + struct pci_dev *dev2 = host->dev[1] ? to_pci_dev(host->dev[1]) : NULL; + + ide_pci_remove(dev); + pci_dev_put(dev2); + kfree(info); } static const struct pci_device_id hpt366_pci_tbl[] __devinitconst = { @@ -1632,6 +1620,7 @@ static struct pci_driver driver = { .name = "HPT366_IDE", .id_table = hpt366_pci_tbl, .probe = hpt366_init_one, + .remove = hpt366_remove, }; static int __init hpt366_ide_init(void) @@ -1639,7 +1628,13 @@ static int __init hpt366_ide_init(void) return ide_pci_register_driver(&driver); } +static void __exit hpt366_ide_exit(void) +{ + pci_unregister_driver(&driver); +} + module_init(hpt366_ide_init); +module_exit(hpt366_ide_exit); MODULE_AUTHOR("Andre Hedrick"); MODULE_DESCRIPTION("PCI driver module for Highpoint HPT366 IDE"); diff --git a/drivers/ide/pci/it8213.c b/drivers/ide/pci/it8213.c index 2b71bdf..6eba8f1 100644 --- a/drivers/ide/pci/it8213.c +++ b/drivers/ide/pci/it8213.c @@ -14,6 +14,8 @@ #include <linux/ide.h> #include <linux/init.h> +#define DRV_NAME "it8213" + /** * it8213_set_pio_mode - set host controller for PIO mode * @drive: drive @@ -155,23 +157,17 @@ static const struct ide_port_ops it8213_port_ops = { .cable_detect = it8213_cable_detect, }; -#define DECLARE_ITE_DEV(name_str) \ - { \ - .name = name_str, \ - .enablebits = { {0x41, 0x80, 0x80} }, \ - .port_ops = &it8213_port_ops, \ - .host_flags = IDE_HFLAG_SINGLE, \ - .pio_mask = ATA_PIO4, \ - .swdma_mask = ATA_SWDMA2_ONLY, \ - .mwdma_mask = ATA_MWDMA12_ONLY, \ - .udma_mask = ATA_UDMA6, \ - } - -static const struct ide_port_info it8213_chipsets[] __devinitdata = { - /* 0 */ DECLARE_ITE_DEV("IT8213"), +static const struct ide_port_info it8213_chipset __devinitdata = { + .name = DRV_NAME, + .enablebits = { {0x41, 0x80, 0x80} }, + .port_ops = &it8213_port_ops, + .host_flags = IDE_HFLAG_SINGLE, + .pio_mask = ATA_PIO4, + .swdma_mask = ATA_SWDMA2_ONLY, + .mwdma_mask = ATA_MWDMA12_ONLY, + .udma_mask = ATA_UDMA6, }; - /** * it8213_init_one - pci layer discovery entry * @dev: PCI device @@ -184,7 +180,7 @@ static const struct ide_port_info it8213_chipsets[] __devinitdata = { static int __devinit it8213_init_one(struct pci_dev *dev, const struct pci_device_id *id) { - return ide_setup_pci_device(dev, &it8213_chipsets[id->driver_data]); + return ide_pci_init_one(dev, &it8213_chipset, NULL); } static const struct pci_device_id it8213_pci_tbl[] = { @@ -198,6 +194,7 @@ static struct pci_driver driver = { .name = "ITE8213_IDE", .id_table = it8213_pci_tbl, .probe = it8213_init_one, + .remove = ide_pci_remove, }; static int __init it8213_ide_init(void) @@ -205,7 +202,13 @@ static int __init it8213_ide_init(void) return ide_pci_register_driver(&driver); } +static void __exit it8213_ide_exit(void) +{ + pci_unregister_driver(&driver); +} + module_init(it8213_ide_init); +module_exit(it8213_ide_exit); MODULE_AUTHOR("Jack Lee, Alan Cox"); MODULE_DESCRIPTION("PCI driver module for the ITE 8213"); diff --git a/drivers/ide/pci/it821x.c b/drivers/ide/pci/it821x.c index cbf6472..e16a1d1 100644 --- a/drivers/ide/pci/it821x.c +++ b/drivers/ide/pci/it821x.c @@ -67,6 +67,8 @@ #include <linux/ide.h> #include <linux/init.h> +#define DRV_NAME "it821x" + struct it821x_dev { unsigned int smart:1, /* Are we in smart raid mode */ @@ -534,8 +536,9 @@ static struct ide_dma_ops it821x_pass_through_dma_ops = { static void __devinit init_hwif_it821x(ide_hwif_t *hwif) { struct pci_dev *dev = to_pci_dev(hwif->dev); - struct it821x_dev **itdevs = (struct it821x_dev **)pci_get_drvdata(dev); - struct it821x_dev *idev = itdevs[hwif->channel]; + struct ide_host *host = pci_get_drvdata(dev); + struct it821x_dev *itdevs = host->host_priv; + struct it821x_dev *idev = itdevs + hwif->channel; u8 conf; ide_set_hwifdata(hwif, idev); @@ -568,7 +571,8 @@ static void __devinit init_hwif_it821x(ide_hwif_t *hwif) idev->timing10 = 1; hwif->host_flags |= IDE_HFLAG_NO_ATAPI_DMA; if (idev->smart == 0) - printk(KERN_WARNING "it821x: Revision 0x10, workarounds activated.\n"); + printk(KERN_WARNING DRV_NAME " %s: revision 0x10, " + "workarounds activated\n", pci_name(dev)); } if (idev->smart == 0) { @@ -601,18 +605,20 @@ static void __devinit it8212_disable_raid(struct pci_dev *dev) pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x20); } -static unsigned int __devinit init_chipset_it821x(struct pci_dev *dev, const char *name) +static unsigned int __devinit init_chipset_it821x(struct pci_dev *dev) { u8 conf; static char *mode[2] = { "pass through", "smart" }; /* Force the card into bypass mode if so requested */ if (it8212_noraid) { - printk(KERN_INFO "it8212: forcing bypass mode.\n"); + printk(KERN_INFO DRV_NAME " %s: forcing bypass mode\n", + pci_name(dev)); it8212_disable_raid(dev); } pci_read_config_byte(dev, 0x50, &conf); - printk(KERN_INFO "it821x: controller in %s mode.\n", mode[conf & 1]); + printk(KERN_INFO DRV_NAME " %s: controller in %s mode\n", + pci_name(dev), mode[conf & 1]); return 0; } @@ -624,17 +630,12 @@ static const struct ide_port_ops it821x_port_ops = { .cable_detect = it821x_cable_detect, }; -#define DECLARE_ITE_DEV(name_str) \ - { \ - .name = name_str, \ - .init_chipset = init_chipset_it821x, \ - .init_hwif = init_hwif_it821x, \ - .port_ops = &it821x_port_ops, \ - .pio_mask = ATA_PIO4, \ - } - -static const struct ide_port_info it821x_chipsets[] __devinitdata = { - /* 0 */ DECLARE_ITE_DEV("IT8212"), +static const struct ide_port_info it821x_chipset __devinitdata = { + .name = DRV_NAME, + .init_chipset = init_chipset_it821x, + .init_hwif = init_hwif_it821x, + .port_ops = &it821x_port_ops, + .pio_mask = ATA_PIO4, }; /** @@ -648,23 +649,29 @@ static const struct ide_port_info it821x_chipsets[] __devinitdata = { static int __devinit it821x_init_one(struct pci_dev *dev, const struct pci_device_id *id) { - struct it821x_dev *itdevs[2] = { NULL, NULL} , *itdev; - unsigned int i; - - for (i = 0; i < 2; i++) { - itdev = kzalloc(sizeof(*itdev), GFP_KERNEL); - if (itdev == NULL) { - kfree(itdevs[0]); - printk(KERN_ERR "it821x: out of memory\n"); - return -ENOMEM; - } + struct it821x_dev *itdevs; + int rc; - itdevs[i] = itdev; + itdevs = kzalloc(2 * sizeof(*itdevs), GFP_KERNEL); + if (itdevs == NULL) { + printk(KERN_ERR DRV_NAME " %s: out of memory\n", pci_name(dev)); + return -ENOMEM; } - pci_set_drvdata(dev, itdevs); + rc = ide_pci_init_one(dev, &it821x_chipset, itdevs); + if (rc) + kfree(itdevs); - return ide_setup_pci_device(dev, &it821x_chipsets[id->driver_data]); + return rc; +} + +static void __devexit it821x_remove(struct pci_dev *dev) +{ + struct ide_host *host = pci_get_drvdata(dev); + struct it821x_dev *itdevs = host->host_priv; + + ide_pci_remove(dev); + kfree(itdevs); } static const struct pci_device_id it821x_pci_tbl[] = { @@ -679,6 +686,7 @@ static struct pci_driver driver = { .name = "ITE821x IDE", .id_table = it821x_pci_tbl, .probe = it821x_init_one, + .remove = it821x_remove, }; static int __init it821x_ide_init(void) @@ -686,7 +694,13 @@ static int __init it821x_ide_init(void) return ide_pci_register_driver(&driver); } +static void __exit it821x_ide_exit(void) +{ + pci_unregister_driver(&driver); +} + module_init(it821x_ide_init); +module_exit(it821x_ide_exit); module_param_named(noraid, it8212_noraid, int, S_IRUGO); MODULE_PARM_DESC(noraid, "Force card into bypass mode"); diff --git a/drivers/ide/pci/jmicron.c b/drivers/ide/pci/jmicron.c index 96ef739..545b6e1 100644 --- a/drivers/ide/pci/jmicron.c +++ b/drivers/ide/pci/jmicron.c @@ -12,6 +12,8 @@ #include <linux/ide.h> #include <linux/init.h> +#define DRV_NAME "jmicron" + typedef enum { PORT_PATA0 = 0, PORT_PATA1 = 1, @@ -102,7 +104,7 @@ static const struct ide_port_ops jmicron_port_ops = { }; static const struct ide_port_info jmicron_chipset __devinitdata = { - .name = "JMB", + .name = DRV_NAME, .enablebits = { { 0x40, 0x01, 0x01 }, { 0x40, 0x10, 0x10 } }, .port_ops = &jmicron_port_ops, .pio_mask = ATA_PIO5, @@ -121,7 +123,7 @@ static const struct ide_port_info jmicron_chipset __devinitdata = { static int __devinit jmicron_init_one(struct pci_dev *dev, const struct pci_device_id *id) { - return ide_setup_pci_device(dev, &jmicron_chipset); + return ide_pci_init_one(dev, &jmicron_chipset, NULL); } /* All JMB PATA controllers have and will continue to have the same @@ -152,6 +154,7 @@ static struct pci_driver driver = { .name = "JMicron IDE", .id_table = jmicron_pci_tbl, .probe = jmicron_init_one, + .remove = ide_pci_remove, }; static int __init jmicron_ide_init(void) @@ -159,7 +162,13 @@ static int __init jmicron_ide_init(void) return ide_pci_register_driver(&driver); } +static void __exit jmicron_ide_exit(void) +{ + pci_unregister_driver(&driver); +} + module_init(jmicron_ide_init); +module_exit(jmicron_ide_exit); MODULE_AUTHOR("Alan Cox"); MODULE_DESCRIPTION("PCI driver module for the JMicron in legacy modes"); diff --git a/drivers/ide/pci/ns87415.c b/drivers/ide/pci/ns87415.c index 5cd2b32..ffefcd1 100644 --- a/drivers/ide/pci/ns87415.c +++ b/drivers/ide/pci/ns87415.c @@ -19,6 +19,8 @@ #include <asm/io.h> +#define DRV_NAME "ns87415" + #ifdef CONFIG_SUPERIO /* SUPERIO 87560 is a PoS chip that NatSem denies exists. * Unfortunately, it's built-in on all Astro-based PA-RISC workstations @@ -305,7 +307,7 @@ static const struct ide_dma_ops ns87415_dma_ops = { }; static const struct ide_port_info ns87415_chipset __devinitdata = { - .name = "NS87415", + .name = DRV_NAME, .init_hwif = init_hwif_ns87415, .port_ops = &ns87415_port_ops, .dma_ops = &ns87415_dma_ops, @@ -324,7 +326,7 @@ static int __devinit ns87415_init_one(struct pci_dev *dev, const struct pci_devi d.tp_ops = &superio_tp_ops; } #endif - return ide_setup_pci_device(dev, &d); + return ide_pci_init_one(dev, &d, NULL); } static const struct pci_device_id ns87415_pci_tbl[] = { @@ -337,6 +339,7 @@ static struct pci_driver driver = { .name = "NS87415_IDE", .id_table = ns87415_pci_tbl, .probe = ns87415_init_one, + .remove = ide_pci_remove, }; static int __init ns87415_ide_init(void) @@ -344,7 +347,13 @@ static int __init ns87415_ide_init(void) return ide_pci_register_driver(&driver); } +static void __exit ns87415_ide_exit(void) +{ + pci_unregister_driver(&driver); +} + module_init(ns87415_ide_init); +module_exit(ns87415_ide_exit); MODULE_AUTHOR("Mark Lord, Eddie Dost, Andre Hedrick"); MODULE_DESCRIPTION("PCI driver module for NS87415 IDE"); diff --git a/drivers/ide/pci/opti621.c b/drivers/ide/pci/opti621.c index 725c805..e28e672 100644 --- a/drivers/ide/pci/opti621.c +++ b/drivers/ide/pci/opti621.c @@ -90,6 +90,8 @@ #include <asm/io.h> +#define DRV_NAME "opti621" + #define READ_REG 0 /* index of Read cycle timing register */ #define WRITE_REG 1 /* index of Write cycle timing register */ #define CNTRL_REG 3 /* index of Control register */ @@ -200,7 +202,7 @@ static const struct ide_port_ops opti621_port_ops = { }; static const struct ide_port_info opti621_chipset __devinitdata = { - .name = "OPTI621/X", + .name = DRV_NAME, .enablebits = { {0x45, 0x80, 0x00}, {0x40, 0x08, 0x00} }, .port_ops = &opti621_port_ops, .host_flags = IDE_HFLAG_NO_DMA, @@ -209,7 +211,7 @@ static const struct ide_port_info opti621_chipset __devinitdata = { static int __devinit opti621_init_one(struct pci_dev *dev, const struct pci_device_id *id) { - return ide_setup_pci_device(dev, &opti621_chipset); + return ide_pci_init_one(dev, &opti621_chipset, NULL); } static const struct pci_device_id opti621_pci_tbl[] = { @@ -223,6 +225,7 @@ static struct pci_driver driver = { .name = "Opti621_IDE", .id_table = opti621_pci_tbl, .probe = opti621_init_one, + .remove = ide_pci_remove, }; static int __init opti621_ide_init(void) @@ -230,7 +233,13 @@ static int __init opti621_ide_init(void) return ide_pci_register_driver(&driver); } +static void __exit opti621_ide_exit(void) +{ + pci_unregister_driver(&driver); +} + module_init(opti621_ide_init); +module_exit(opti621_ide_exit); MODULE_AUTHOR("Jaromir Koutek, Jan Harkes, Mark Lord"); MODULE_DESCRIPTION("PCI driver module for Opti621 IDE"); diff --git a/drivers/ide/pci/pdc202xx_new.c b/drivers/ide/pci/pdc202xx_new.c index 070df8a..998615f 100644 --- a/drivers/ide/pci/pdc202xx_new.c +++ b/drivers/ide/pci/pdc202xx_new.c @@ -31,6 +31,8 @@ #include <asm/pci-bridge.h> #endif +#define DRV_NAME "pdc202xx_new" + #undef DEBUG #ifdef DEBUG @@ -324,8 +326,9 @@ static void __devinit apple_kiwi_init(struct pci_dev *pdev) } #endif /* CONFIG_PPC_PMAC */ -static unsigned int __devinit init_chipset_pdcnew(struct pci_dev *dev, const char *name) +static unsigned int __devinit init_chipset_pdcnew(struct pci_dev *dev) { + const char *name = DRV_NAME; unsigned long dma_base = pci_resource_start(dev, 4); unsigned long sec_dma_base = dma_base + 0x08; long pll_input, pll_output, ratio; @@ -358,12 +361,13 @@ static unsigned int __devinit init_chipset_pdcnew(struct pci_dev *dev, const cha * registers setting. */ pll_input = detect_pll_input_clock(dma_base); - printk("%s: PLL input clock is %ld kHz\n", name, pll_input / 1000); + printk(KERN_INFO "%s %s: PLL input clock is %ld kHz\n", + name, pci_name(dev), pll_input / 1000); /* Sanity check */ if (unlikely(pll_input < 5000000L || pll_input > 70000000L)) { - printk(KERN_ERR "%s: Bad PLL input clock %ld Hz, giving up!\n", - name, pll_input); + printk(KERN_ERR "%s %s: Bad PLL input clock %ld Hz, giving up!" + "\n", name, pci_name(dev), pll_input); goto out; } @@ -399,7 +403,8 @@ static unsigned int __devinit init_chipset_pdcnew(struct pci_dev *dev, const cha r = 0x00; } else { /* Invalid ratio */ - printk(KERN_ERR "%s: Bad ratio %ld, giving up!\n", name, ratio); + printk(KERN_ERR "%s %s: Bad ratio %ld, giving up!\n", + name, pci_name(dev), ratio); goto out; } @@ -409,7 +414,8 @@ static unsigned int __devinit init_chipset_pdcnew(struct pci_dev *dev, const cha if (unlikely(f < 0 || f > 127)) { /* Invalid F */ - printk(KERN_ERR "%s: F[%d] invalid!\n", name, f); + printk(KERN_ERR "%s %s: F[%d] invalid!\n", + name, pci_name(dev), f); goto out; } @@ -455,8 +461,8 @@ static struct pci_dev * __devinit pdc20270_get_dev2(struct pci_dev *dev) if (dev2->irq != dev->irq) { dev2->irq = dev->irq; - printk(KERN_INFO "PDC20270: PCI config space " - "interrupt fixed\n"); + printk(KERN_INFO DRV_NAME " %s: PCI config space " + "interrupt fixed\n", pci_name(dev)); } return dev2; @@ -473,9 +479,9 @@ static const struct ide_port_ops pdcnew_port_ops = { .cable_detect = pdcnew_cable_detect, }; -#define DECLARE_PDCNEW_DEV(name_str, udma) \ +#define DECLARE_PDCNEW_DEV(udma) \ { \ - .name = name_str, \ + .name = DRV_NAME, \ .init_chipset = init_chipset_pdcnew, \ .port_ops = &pdcnew_port_ops, \ .host_flags = IDE_HFLAG_POST_SET_MODE | \ @@ -487,13 +493,8 @@ static const struct ide_port_ops pdcnew_port_ops = { } static const struct ide_port_info pdcnew_chipsets[] __devinitdata = { - /* 0 */ DECLARE_PDCNEW_DEV("PDC20268", ATA_UDMA5), - /* 1 */ DECLARE_PDCNEW_DEV("PDC20269", ATA_UDMA6), - /* 2 */ DECLARE_PDCNEW_DEV("PDC20270", ATA_UDMA5), - /* 3 */ DECLARE_PDCNEW_DEV("PDC20271", ATA_UDMA6), - /* 4 */ DECLARE_PDCNEW_DEV("PDC20275", ATA_UDMA6), - /* 5 */ DECLARE_PDCNEW_DEV("PDC20276", ATA_UDMA6), - /* 6 */ DECLARE_PDCNEW_DEV("PDC20277", ATA_UDMA6), + /* 0: PDC202{68,70} */ DECLARE_PDCNEW_DEV(ATA_UDMA5), + /* 1: PDC202{69,71,75,76,77} */ DECLARE_PDCNEW_DEV(ATA_UDMA6), }; /** @@ -507,13 +508,10 @@ static const struct ide_port_info pdcnew_chipsets[] __devinitdata = { static int __devinit pdc202new_init_one(struct pci_dev *dev, const struct pci_device_id *id) { - const struct ide_port_info *d; + const struct ide_port_info *d = &pdcnew_chipsets[id->driver_data]; struct pci_dev *bridge = dev->bus->self; - u8 idx = id->driver_data; - - d = &pdcnew_chipsets[idx]; - if (idx == 2 && bridge && + if (dev->device == PCI_DEVICE_ID_PROMISE_20270 && bridge && bridge->vendor == PCI_VENDOR_ID_DEC && bridge->device == PCI_DEVICE_ID_DEC_21150) { struct pci_dev *dev2; @@ -524,33 +522,42 @@ static int __devinit pdc202new_init_one(struct pci_dev *dev, const struct pci_de dev2 = pdc20270_get_dev2(dev); if (dev2) { - int ret = ide_setup_pci_devices(dev, dev2, d); + int ret = ide_pci_init_two(dev, dev2, d, NULL); if (ret < 0) pci_dev_put(dev2); return ret; } } - if (idx == 5 && bridge && + if (dev->device == PCI_DEVICE_ID_PROMISE_20276 && bridge && bridge->vendor == PCI_VENDOR_ID_INTEL && (bridge->device == PCI_DEVICE_ID_INTEL_I960 || bridge->device == PCI_DEVICE_ID_INTEL_I960RM)) { - printk(KERN_INFO "PDC20276: attached to I2O RAID controller, " - "skipping\n"); + printk(KERN_INFO DRV_NAME " %s: attached to I2O RAID controller," + " skipping\n", pci_name(dev)); return -ENODEV; } - return ide_setup_pci_device(dev, d); + return ide_pci_init_one(dev, d, NULL); +} + +static void __devexit pdc202new_remove(struct pci_dev *dev) +{ + struct ide_host *host = pci_get_drvdata(dev); + struct pci_dev *dev2 = host->dev[1] ? to_pci_dev(host->dev[1]) : NULL; + + ide_pci_remove(dev); + pci_dev_put(dev2); } static const struct pci_device_id pdc202new_pci_tbl[] = { { PCI_VDEVICE(PROMISE, PCI_DEVICE_ID_PROMISE_20268), 0 }, { PCI_VDEVICE(PROMISE, PCI_DEVICE_ID_PROMISE_20269), 1 }, - { PCI_VDEVICE(PROMISE, PCI_DEVICE_ID_PROMISE_20270), 2 }, - { PCI_VDEVICE(PROMISE, PCI_DEVICE_ID_PROMISE_20271), 3 }, - { PCI_VDEVICE(PROMISE, PCI_DEVICE_ID_PROMISE_20275), 4 }, - { PCI_VDEVICE(PROMISE, PCI_DEVICE_ID_PROMISE_20276), 5 }, - { PCI_VDEVICE(PROMISE, PCI_DEVICE_ID_PROMISE_20277), 6 }, + { PCI_VDEVICE(PROMISE, PCI_DEVICE_ID_PROMISE_20270), 0 }, + { PCI_VDEVICE(PROMISE, PCI_DEVICE_ID_PROMISE_20271), 1 }, + { PCI_VDEVICE(PROMISE, PCI_DEVICE_ID_PROMISE_20275), 1 }, + { PCI_VDEVICE(PROMISE, PCI_DEVICE_ID_PROMISE_20276), 1 }, + { PCI_VDEVICE(PROMISE, PCI_DEVICE_ID_PROMISE_20277), 1 }, { 0, }, }; MODULE_DEVICE_TABLE(pci, pdc202new_pci_tbl); @@ -559,6 +566,7 @@ static struct pci_driver driver = { .name = "Promise_IDE", .id_table = pdc202new_pci_tbl, .probe = pdc202new_init_one, + .remove = pdc202new_remove, }; static int __init pdc202new_ide_init(void) @@ -566,7 +574,13 @@ static int __init pdc202new_ide_init(void) return ide_pci_register_driver(&driver); } +static void __exit pdc202new_ide_exit(void) +{ + pci_unregister_driver(&driver); +} + module_init(pdc202new_ide_init); +module_exit(pdc202new_ide_exit); MODULE_AUTHOR("Andre Hedrick, Frank Tiernan"); MODULE_DESCRIPTION("PCI driver module for Promise PDC20268 and higher"); diff --git a/drivers/ide/pci/pdc202xx_old.c b/drivers/ide/pci/pdc202xx_old.c index e54dc65..6ff2def 100644 --- a/drivers/ide/pci/pdc202xx_old.c +++ b/drivers/ide/pci/pdc202xx_old.c @@ -20,6 +20,8 @@ #include <asm/io.h> +#define DRV_NAME "pdc202xx_old" + #define PDC202XX_DEBUG_DRIVE_INFO 0 static const char *pdc_quirk_drives[] = { @@ -263,8 +265,7 @@ static void pdc202xx_dma_timeout(ide_drive_t *drive) ide_dma_timeout(drive); } -static unsigned int __devinit init_chipset_pdc202xx(struct pci_dev *dev, - const char *name) +static unsigned int __devinit init_chipset_pdc202xx(struct pci_dev *dev) { unsigned long dmabase = pci_resource_start(dev, 4); u8 udma_speed_flag = 0, primary_mode = 0, secondary_mode = 0; @@ -304,8 +305,8 @@ static void __devinit pdc202ata4_fixup_irq(struct pci_dev *dev, if (irq != irq2) { pci_write_config_byte(dev, (PCI_INTERRUPT_LINE)|0x80, irq); /* 0xbc */ - printk(KERN_INFO "%s: PCI config space interrupt " - "mirror fixed\n", name); + printk(KERN_INFO "%s %s: PCI config space interrupt " + "mirror fixed\n", name, pci_name(dev)); } } } @@ -350,9 +351,9 @@ static const struct ide_dma_ops pdc2026x_dma_ops = { .dma_timeout = pdc202xx_dma_timeout, }; -#define DECLARE_PDC2026X_DEV(name_str, udma, extra_flags) \ +#define DECLARE_PDC2026X_DEV(udma, extra_flags) \ { \ - .name = name_str, \ + .name = DRV_NAME, \ .init_chipset = init_chipset_pdc202xx, \ .port_ops = &pdc2026x_port_ops, \ .dma_ops = &pdc2026x_dma_ops, \ @@ -363,8 +364,8 @@ static const struct ide_dma_ops pdc2026x_dma_ops = { } static const struct ide_port_info pdc202xx_chipsets[] __devinitdata = { - { /* 0 */ - .name = "PDC20246", + { /* 0: PDC20246 */ + .name = DRV_NAME, .init_chipset = init_chipset_pdc202xx, .port_ops = &pdc20246_port_ops, .dma_ops = &pdc20246_dma_ops, @@ -374,10 +375,10 @@ static const struct ide_port_info pdc202xx_chipsets[] __devinitdata = { .udma_mask = ATA_UDMA2, }, - /* 1 */ DECLARE_PDC2026X_DEV("PDC20262", ATA_UDMA4, 0), - /* 2 */ DECLARE_PDC2026X_DEV("PDC20263", ATA_UDMA4, 0), - /* 3 */ DECLARE_PDC2026X_DEV("PDC20265", ATA_UDMA5, IDE_HFLAG_RQSIZE_256), - /* 4 */ DECLARE_PDC2026X_DEV("PDC20267", ATA_UDMA5, IDE_HFLAG_RQSIZE_256), + /* 1: PDC2026{2,3} */ + DECLARE_PDC2026X_DEV(ATA_UDMA4, 0), + /* 2: PDC2026{5,7} */ + DECLARE_PDC2026X_DEV(ATA_UDMA5, IDE_HFLAG_RQSIZE_256), }; /** @@ -396,31 +397,32 @@ static int __devinit pdc202xx_init_one(struct pci_dev *dev, const struct pci_dev d = &pdc202xx_chipsets[idx]; - if (idx < 3) + if (idx < 2) pdc202ata4_fixup_irq(dev, d->name); - if (idx == 3) { + if (dev->vendor == PCI_DEVICE_ID_PROMISE_20265) { struct pci_dev *bridge = dev->bus->self; if (bridge && bridge->vendor == PCI_VENDOR_ID_INTEL && (bridge->device == PCI_DEVICE_ID_INTEL_I960 || bridge->device == PCI_DEVICE_ID_INTEL_I960RM)) { - printk(KERN_INFO "ide: Skipping Promise PDC20265 " - "attached to I2O RAID controller\n"); + printk(KERN_INFO DRV_NAME " %s: skipping Promise " + "PDC20265 attached to I2O RAID controller\n", + pci_name(dev)); return -ENODEV; } } - return ide_setup_pci_device(dev, d); + return ide_pci_init_one(dev, d, NULL); } static const struct pci_device_id pdc202xx_pci_tbl[] = { { PCI_VDEVICE(PROMISE, PCI_DEVICE_ID_PROMISE_20246), 0 }, { PCI_VDEVICE(PROMISE, PCI_DEVICE_ID_PROMISE_20262), 1 }, - { PCI_VDEVICE(PROMISE, PCI_DEVICE_ID_PROMISE_20263), 2 }, - { PCI_VDEVICE(PROMISE, PCI_DEVICE_ID_PROMISE_20265), 3 }, - { PCI_VDEVICE(PROMISE, PCI_DEVICE_ID_PROMISE_20267), 4 }, + { PCI_VDEVICE(PROMISE, PCI_DEVICE_ID_PROMISE_20263), 1 }, + { PCI_VDEVICE(PROMISE, PCI_DEVICE_ID_PROMISE_20265), 2 }, + { PCI_VDEVICE(PROMISE, PCI_DEVICE_ID_PROMISE_20267), 2 }, { 0, }, }; MODULE_DEVICE_TABLE(pci, pdc202xx_pci_tbl); @@ -429,6 +431,7 @@ static struct pci_driver driver = { .name = "Promise_Old_IDE", .id_table = pdc202xx_pci_tbl, .probe = pdc202xx_init_one, + .remove = ide_pci_remove, }; static int __init pdc202xx_ide_init(void) @@ -436,7 +439,13 @@ static int __init pdc202xx_ide_init(void) return ide_pci_register_driver(&driver); } +static void __exit pdc202xx_ide_exit(void) +{ + pci_unregister_driver(&driver); +} + module_init(pdc202xx_ide_init); +module_exit(pdc202xx_ide_exit); MODULE_AUTHOR("Andre Hedrick, Frank Tiernan"); MODULE_DESCRIPTION("PCI driver module for older Promise IDE"); diff --git a/drivers/ide/pci/piix.c b/drivers/ide/pci/piix.c index 0ce41b4..7fc3022 100644 --- a/drivers/ide/pci/piix.c +++ b/drivers/ide/pci/piix.c @@ -54,6 +54,8 @@ #include <asm/io.h> +#define DRV_NAME "piix" + static int no_piix_dma; /** @@ -198,13 +200,12 @@ static void piix_set_dma_mode(ide_drive_t *drive, const u8 speed) /** * init_chipset_ich - set up the ICH chipset * @dev: PCI device to set up - * @name: Name of the device * * Initialize the PCI device as required. For the ICH this turns * out to be nice and simple. */ -static unsigned int __devinit init_chipset_ich(struct pci_dev *dev, const char *name) +static unsigned int __devinit init_chipset_ich(struct pci_dev *dev) { u32 extra = 0; @@ -314,9 +315,9 @@ static const struct ide_port_ops piix_port_ops = { #define IDE_HFLAGS_PIIX 0 #endif -#define DECLARE_PIIX_DEV(name_str, udma) \ +#define DECLARE_PIIX_DEV(udma) \ { \ - .name = name_str, \ + .name = DRV_NAME, \ .init_hwif = init_hwif_piix, \ .enablebits = {{0x41,0x80,0x80}, {0x43,0x80,0x80}}, \ .port_ops = &piix_port_ops, \ @@ -327,9 +328,9 @@ static const struct ide_port_ops piix_port_ops = { .udma_mask = udma, \ } -#define DECLARE_ICH_DEV(name_str, udma) \ +#define DECLARE_ICH_DEV(udma) \ { \ - .name = name_str, \ + .name = DRV_NAME, \ .init_chipset = init_chipset_ich, \ .init_hwif = init_hwif_ich, \ .enablebits = {{0x41,0x80,0x80}, {0x43,0x80,0x80}}, \ @@ -342,45 +343,31 @@ static const struct ide_port_ops piix_port_ops = { } static const struct ide_port_info piix_pci_info[] __devinitdata = { - /* 0 */ DECLARE_PIIX_DEV("PIIXa", 0x00), /* no udma */ - /* 1 */ DECLARE_PIIX_DEV("PIIXb", 0x00), /* no udma */ - - /* 2 */ + /* 0: MPIIX */ { /* * MPIIX actually has only a single IDE channel mapped to * the primary or secondary ports depending on the value * of the bit 14 of the IDETIM register at offset 0x6c */ - .name = "MPIIX", + .name = DRV_NAME, .enablebits = {{0x6d,0xc0,0x80}, {0x6d,0xc0,0xc0}}, .host_flags = IDE_HFLAG_ISA_PORTS | IDE_HFLAG_NO_DMA | IDE_HFLAGS_PIIX, .pio_mask = ATA_PIO4, /* This is a painful system best to let it self tune for now */ }, - - /* 3 */ DECLARE_PIIX_DEV("PIIX3", 0x00), /* no udma */ - /* 4 */ DECLARE_PIIX_DEV("PIIX4", ATA_UDMA2), - /* 5 */ DECLARE_ICH_DEV("ICH0", ATA_UDMA2), - /* 6 */ DECLARE_PIIX_DEV("PIIX4", ATA_UDMA2), - /* 7 */ DECLARE_ICH_DEV("ICH", ATA_UDMA4), - /* 8 */ DECLARE_PIIX_DEV("PIIX4", ATA_UDMA4), - /* 9 */ DECLARE_PIIX_DEV("PIIX4", ATA_UDMA2), - /* 10 */ DECLARE_ICH_DEV("ICH2", ATA_UDMA5), - /* 11 */ DECLARE_ICH_DEV("ICH2M", ATA_UDMA5), - /* 12 */ DECLARE_ICH_DEV("ICH3M", ATA_UDMA5), - /* 13 */ DECLARE_ICH_DEV("ICH3", ATA_UDMA5), - /* 14 */ DECLARE_ICH_DEV("ICH4", ATA_UDMA5), - /* 15 */ DECLARE_ICH_DEV("ICH5", ATA_UDMA5), - /* 16 */ DECLARE_ICH_DEV("C-ICH", ATA_UDMA5), - /* 17 */ DECLARE_ICH_DEV("ICH4", ATA_UDMA5), - /* 18 */ DECLARE_ICH_DEV("ICH5-SATA", ATA_UDMA5), - /* 19 */ DECLARE_ICH_DEV("ICH5", ATA_UDMA5), - /* 20 */ DECLARE_ICH_DEV("ICH6", ATA_UDMA5), - /* 21 */ DECLARE_ICH_DEV("ICH7", ATA_UDMA5), - /* 22 */ DECLARE_ICH_DEV("ICH4", ATA_UDMA5), - /* 23 */ DECLARE_ICH_DEV("ESB2", ATA_UDMA5), - /* 24 */ DECLARE_ICH_DEV("ICH8M", ATA_UDMA5), + /* 1: PIIXa/PIIXb/PIIX3 */ + DECLARE_PIIX_DEV(0x00), /* no udma */ + /* 2: PIIX4 */ + DECLARE_PIIX_DEV(ATA_UDMA2), + /* 3: ICH0 */ + DECLARE_ICH_DEV(ATA_UDMA2), + /* 4: ICH */ + DECLARE_ICH_DEV(ATA_UDMA4), + /* 5: PIIX4 */ + DECLARE_PIIX_DEV(ATA_UDMA4), + /* 6: ICH[2-7]/ICH[2-3]M/C-ICH/ICH5-SATA/ESB2/ICH8M */ + DECLARE_ICH_DEV(ATA_UDMA5), }; /** @@ -394,7 +381,7 @@ static const struct ide_port_info piix_pci_info[] __devinitdata = { static int __devinit piix_init_one(struct pci_dev *dev, const struct pci_device_id *id) { - return ide_setup_pci_device(dev, &piix_pci_info[id->driver_data]); + return ide_pci_init_one(dev, &piix_pci_info[id->driver_data], NULL); } /** @@ -421,39 +408,39 @@ static void __devinit piix_check_450nx(void) no_piix_dma = 2; } if(no_piix_dma) - printk(KERN_WARNING "piix: 450NX errata present, disabling IDE DMA.\n"); + printk(KERN_WARNING DRV_NAME ": 450NX errata present, disabling IDE DMA.\n"); if(no_piix_dma == 2) - printk(KERN_WARNING "piix: A BIOS update may resolve this.\n"); + printk(KERN_WARNING DRV_NAME ": A BIOS update may resolve this.\n"); } static const struct pci_device_id piix_pci_tbl[] = { - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82371FB_0), 0 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82371FB_1), 1 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82371MX), 2 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82371SB_1), 3 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82371AB), 4 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801AB_1), 5 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82443MX_1), 6 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801AA_1), 7 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82372FB_1), 8 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82451NX), 9 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801BA_9), 10 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801BA_8), 11 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801CA_10), 12 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801CA_11), 13 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801DB_11), 14 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801EB_11), 15 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801E_11), 16 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801DB_10), 17 }, + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82371FB_0), 1 }, + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82371FB_1), 1 }, + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82371MX), 0 }, + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82371SB_1), 1 }, + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82371AB), 2 }, + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801AB_1), 3 }, + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82443MX_1), 2 }, + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801AA_1), 4 }, + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82372FB_1), 5 }, + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82451NX), 2 }, + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801BA_9), 6 }, + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801BA_8), 6 }, + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801CA_10), 6 }, + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801CA_11), 6 }, + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801DB_11), 6 }, + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801EB_11), 6 }, + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801E_11), 6 }, + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801DB_10), 6 }, #ifdef CONFIG_BLK_DEV_IDE_SATA - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801EB_1), 18 }, + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801EB_1), 6 }, #endif - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ESB_2), 19 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ICH6_19), 20 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ICH7_21), 21 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801DB_1), 22 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ESB2_18), 23 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ICH8_6), 24 }, + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ESB_2), 6 }, + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ICH6_19), 6 }, + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ICH7_21), 6 }, + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801DB_1), 6 }, + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ESB2_18), 6 }, + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ICH8_6), 6 }, { 0, }, }; MODULE_DEVICE_TABLE(pci, piix_pci_tbl); @@ -462,6 +449,7 @@ static struct pci_driver driver = { .name = "PIIX_IDE", .id_table = piix_pci_tbl, .probe = piix_init_one, + .remove = ide_pci_remove, }; static int __init piix_ide_init(void) @@ -470,7 +458,13 @@ static int __init piix_ide_init(void) return ide_pci_register_driver(&driver); } +static void __exit piix_ide_exit(void) +{ + pci_unregister_driver(&driver); +} + module_init(piix_ide_init); +module_exit(piix_ide_exit); MODULE_AUTHOR("Andre Hedrick, Andrzej Krzysztofowicz"); MODULE_DESCRIPTION("PCI driver module for Intel PIIX IDE"); diff --git a/drivers/ide/pci/rz1000.c b/drivers/ide/pci/rz1000.c index 532154a..8d11ee8 100644 --- a/drivers/ide/pci/rz1000.c +++ b/drivers/ide/pci/rz1000.c @@ -21,6 +21,8 @@ #include <linux/ide.h> #include <linux/init.h> +#define DRV_NAME "rz1000" + static void __devinit init_hwif_rz1000 (ide_hwif_t *hwif) { struct pci_dev *dev = to_pci_dev(hwif->dev); @@ -40,7 +42,7 @@ static void __devinit init_hwif_rz1000 (ide_hwif_t *hwif) } static const struct ide_port_info rz1000_chipset __devinitdata = { - .name = "RZ100x", + .name = DRV_NAME, .init_hwif = init_hwif_rz1000, .chipset = ide_rz1000, .host_flags = IDE_HFLAG_NO_DMA, @@ -48,7 +50,7 @@ static const struct ide_port_info rz1000_chipset __devinitdata = { static int __devinit rz1000_init_one(struct pci_dev *dev, const struct pci_device_id *id) { - return ide_setup_pci_device(dev, &rz1000_chipset); + return ide_pci_init_one(dev, &rz1000_chipset, NULL); } static const struct pci_device_id rz1000_pci_tbl[] = { @@ -62,6 +64,7 @@ static struct pci_driver driver = { .name = "RZ1000_IDE", .id_table = rz1000_pci_tbl, .probe = rz1000_init_one, + .remove = ide_pci_remove, }; static int __init rz1000_ide_init(void) @@ -69,7 +72,13 @@ static int __init rz1000_ide_init(void) return ide_pci_register_driver(&driver); } +static void __exit rz1000_ide_exit(void) +{ + pci_unregister_driver(&driver); +} + module_init(rz1000_ide_init); +module_exit(rz1000_ide_exit); MODULE_AUTHOR("Andre Hedrick"); MODULE_DESCRIPTION("PCI driver module for RZ1000 IDE"); diff --git a/drivers/ide/pci/sc1200.c b/drivers/ide/pci/sc1200.c index 14c787b..8efaed1 100644 --- a/drivers/ide/pci/sc1200.c +++ b/drivers/ide/pci/sc1200.c @@ -22,6 +22,8 @@ #include <asm/io.h> +#define DRV_NAME "sc1200" + #define SC1200_REV_A 0x00 #define SC1200_REV_B1 0x01 #define SC1200_REV_B3 0x02 @@ -234,21 +236,11 @@ static int sc1200_suspend (struct pci_dev *dev, pm_message_t state) * we only save state when going from full power to less */ if (state.event == PM_EVENT_ON) { - struct sc1200_saved_state *ss; + struct ide_host *host = pci_get_drvdata(dev); + struct sc1200_saved_state *ss = host->host_priv; unsigned int r; /* - * allocate a permanent save area, if not already allocated - */ - ss = (struct sc1200_saved_state *)pci_get_drvdata(dev); - if (ss == NULL) { - ss = kmalloc(sizeof(*ss), GFP_KERNEL); - if (ss == NULL) - return -ENOMEM; - pci_set_drvdata(dev, ss); - } - - /* * save timing registers * (this may be unnecessary if BIOS also does it) */ @@ -263,7 +255,8 @@ static int sc1200_suspend (struct pci_dev *dev, pm_message_t state) static int sc1200_resume (struct pci_dev *dev) { - struct sc1200_saved_state *ss; + struct ide_host *host = pci_get_drvdata(dev); + struct sc1200_saved_state *ss = host->host_priv; unsigned int r; int i; @@ -271,16 +264,12 @@ static int sc1200_resume (struct pci_dev *dev) if (i) return i; - ss = (struct sc1200_saved_state *)pci_get_drvdata(dev); - /* * restore timing registers * (this may be unnecessary if BIOS also does it) */ - if (ss) { - for (r = 0; r < 8; r++) - pci_write_config_dword(dev, 0x40 + r * 4, ss->regs[r]); - } + for (r = 0; r < 8; r++) + pci_write_config_dword(dev, 0x40 + r * 4, ss->regs[r]); return 0; } @@ -304,7 +293,7 @@ static const struct ide_dma_ops sc1200_dma_ops = { }; static const struct ide_port_info sc1200_chipset __devinitdata = { - .name = "SC1200", + .name = DRV_NAME, .port_ops = &sc1200_port_ops, .dma_ops = &sc1200_dma_ops, .host_flags = IDE_HFLAG_SERIALIZE | @@ -317,7 +306,19 @@ static const struct ide_port_info sc1200_chipset __devinitdata = { static int __devinit sc1200_init_one(struct pci_dev *dev, const struct pci_device_id *id) { - return ide_setup_pci_device(dev, &sc1200_chipset); + struct sc1200_saved_state *ss = NULL; + int rc; + +#ifdef CONFIG_PM + ss = kmalloc(sizeof(*ss), GFP_KERNEL); + if (ss == NULL) + return -ENOMEM; +#endif + rc = ide_pci_init_one(dev, &sc1200_chipset, ss); + if (rc) + kfree(ss); + + return rc; } static const struct pci_device_id sc1200_pci_tbl[] = { @@ -330,6 +331,7 @@ static struct pci_driver driver = { .name = "SC1200_IDE", .id_table = sc1200_pci_tbl, .probe = sc1200_init_one, + .remove = ide_pci_remove, #ifdef CONFIG_PM .suspend = sc1200_suspend, .resume = sc1200_resume, @@ -341,7 +343,13 @@ static int __init sc1200_ide_init(void) return ide_pci_register_driver(&driver); } +static void __exit sc1200_ide_exit(void) +{ + pci_unregister_driver(&driver); +} + module_init(sc1200_ide_init); +module_exit(sc1200_ide_exit); MODULE_AUTHOR("Mark Lord"); MODULE_DESCRIPTION("PCI driver module for NS SC1200 IDE"); diff --git a/drivers/ide/pci/serverworks.c b/drivers/ide/pci/serverworks.c index 127ccb4..d173f29 100644 --- a/drivers/ide/pci/serverworks.c +++ b/drivers/ide/pci/serverworks.c @@ -38,6 +38,8 @@ #include <asm/io.h> +#define DRV_NAME "serverworks" + #define SVWKS_CSB5_REVISION_NEW 0x92 /* min PCI_REVISION_ID for UDMA5 (A2.0) */ #define SVWKS_CSB6_REVISION 0xa0 /* min PCI_REVISION_ID for UDMA4 (A1.0) */ @@ -172,7 +174,7 @@ static void svwks_set_dma_mode(ide_drive_t *drive, const u8 speed) pci_write_config_byte(dev, 0x54, ultra_enable); } -static unsigned int __devinit init_chipset_svwks (struct pci_dev *dev, const char *name) +static unsigned int __devinit init_chipset_svwks(struct pci_dev *dev) { unsigned int reg; u8 btr; @@ -188,7 +190,8 @@ static unsigned int __devinit init_chipset_svwks (struct pci_dev *dev, const cha pci_read_config_dword(isa_dev, 0x64, ®); reg &= ~0x00002000; /* disable 600ns interrupt mask */ if(!(reg & 0x00004000)) - printk(KERN_DEBUG "%s: UDMA not BIOS enabled.\n", name); + printk(KERN_DEBUG DRV_NAME " %s: UDMA not BIOS " + "enabled.\n", pci_name(dev)); reg |= 0x00004000; /* enable UDMA/33 support */ pci_write_config_dword(isa_dev, 0x64, reg); } @@ -352,40 +355,44 @@ static const struct ide_port_ops svwks_port_ops = { #define IDE_HFLAGS_SVWKS IDE_HFLAG_LEGACY_IRQS static const struct ide_port_info serverworks_chipsets[] __devinitdata = { - { /* 0 */ - .name = "SvrWks OSB4", + { /* 0: OSB4 */ + .name = DRV_NAME, .init_chipset = init_chipset_svwks, .port_ops = &osb4_port_ops, .host_flags = IDE_HFLAGS_SVWKS, .pio_mask = ATA_PIO4, .mwdma_mask = ATA_MWDMA2, .udma_mask = 0x00, /* UDMA is problematic on OSB4 */ - },{ /* 1 */ - .name = "SvrWks CSB5", + }, + { /* 1: CSB5 */ + .name = DRV_NAME, .init_chipset = init_chipset_svwks, .port_ops = &svwks_port_ops, .host_flags = IDE_HFLAGS_SVWKS, .pio_mask = ATA_PIO4, .mwdma_mask = ATA_MWDMA2, .udma_mask = ATA_UDMA5, - },{ /* 2 */ - .name = "SvrWks CSB6", + }, + { /* 2: CSB6 */ + .name = DRV_NAME, .init_chipset = init_chipset_svwks, .port_ops = &svwks_port_ops, .host_flags = IDE_HFLAGS_SVWKS, .pio_mask = ATA_PIO4, .mwdma_mask = ATA_MWDMA2, .udma_mask = ATA_UDMA5, - },{ /* 3 */ - .name = "SvrWks CSB6", + }, + { /* 3: CSB6-2 */ + .name = DRV_NAME, .init_chipset = init_chipset_svwks, .port_ops = &svwks_port_ops, .host_flags = IDE_HFLAGS_SVWKS | IDE_HFLAG_SINGLE, .pio_mask = ATA_PIO4, .mwdma_mask = ATA_MWDMA2, .udma_mask = ATA_UDMA5, - },{ /* 4 */ - .name = "SvrWks HT1000", + }, + { /* 4: HT1000 */ + .name = DRV_NAME, .init_chipset = init_chipset_svwks, .port_ops = &svwks_port_ops, .host_flags = IDE_HFLAGS_SVWKS | IDE_HFLAG_SINGLE, @@ -422,7 +429,7 @@ static int __devinit svwks_init_one(struct pci_dev *dev, const struct pci_device d.host_flags &= ~IDE_HFLAG_SINGLE; } - return ide_setup_pci_device(dev, &d); + return ide_pci_init_one(dev, &d, NULL); } static const struct pci_device_id svwks_pci_tbl[] = { @@ -439,6 +446,7 @@ static struct pci_driver driver = { .name = "Serverworks_IDE", .id_table = svwks_pci_tbl, .probe = svwks_init_one, + .remove = ide_pci_remove, }; static int __init svwks_ide_init(void) @@ -446,7 +454,13 @@ static int __init svwks_ide_init(void) return ide_pci_register_driver(&driver); } +static void __exit svwks_ide_exit(void) +{ + pci_unregister_driver(&driver); +} + module_init(svwks_ide_init); +module_exit(svwks_ide_exit); MODULE_AUTHOR("Michael Aubry. Andrzej Krzysztofowicz, Andre Hedrick"); MODULE_DESCRIPTION("PCI driver module for Serverworks OSB4/CSB5/CSB6 IDE"); diff --git a/drivers/ide/pci/siimage.c b/drivers/ide/pci/siimage.c index 5965a35..b8ad9ad 100644 --- a/drivers/ide/pci/siimage.c +++ b/drivers/ide/pci/siimage.c @@ -44,6 +44,8 @@ #include <linux/init.h> #include <linux/io.h> +#define DRV_NAME "siimage" + /** * pdev_is_sata - check if device is SATA * @pdev: PCI device to check @@ -127,9 +129,10 @@ static inline unsigned long siimage_seldev(ide_drive_t *drive, int r) static u8 sil_ioread8(struct pci_dev *dev, unsigned long addr) { + struct ide_host *host = pci_get_drvdata(dev); u8 tmp = 0; - if (pci_get_drvdata(dev)) + if (host->host_priv) tmp = readb((void __iomem *)addr); else pci_read_config_byte(dev, addr, &tmp); @@ -139,9 +142,10 @@ static u8 sil_ioread8(struct pci_dev *dev, unsigned long addr) static u16 sil_ioread16(struct pci_dev *dev, unsigned long addr) { + struct ide_host *host = pci_get_drvdata(dev); u16 tmp = 0; - if (pci_get_drvdata(dev)) + if (host->host_priv) tmp = readw((void __iomem *)addr); else pci_read_config_word(dev, addr, &tmp); @@ -151,7 +155,9 @@ static u16 sil_ioread16(struct pci_dev *dev, unsigned long addr) static void sil_iowrite8(struct pci_dev *dev, u8 val, unsigned long addr) { - if (pci_get_drvdata(dev)) + struct ide_host *host = pci_get_drvdata(dev); + + if (host->host_priv) writeb(val, (void __iomem *)addr); else pci_write_config_byte(dev, addr, val); @@ -159,7 +165,9 @@ static void sil_iowrite8(struct pci_dev *dev, u8 val, unsigned long addr) static void sil_iowrite16(struct pci_dev *dev, u16 val, unsigned long addr) { - if (pci_get_drvdata(dev)) + struct ide_host *host = pci_get_drvdata(dev); + + if (host->host_priv) writew(val, (void __iomem *)addr); else pci_write_config_word(dev, addr, val); @@ -167,7 +175,9 @@ static void sil_iowrite16(struct pci_dev *dev, u16 val, unsigned long addr) static void sil_iowrite32(struct pci_dev *dev, u32 val, unsigned long addr) { - if (pci_get_drvdata(dev)) + struct ide_host *host = pci_get_drvdata(dev); + + if (host->host_priv) writel(val, (void __iomem *)addr); else pci_write_config_dword(dev, addr, val); @@ -445,66 +455,24 @@ static void sil_sata_pre_reset(ide_drive_t *drive) } /** - * setup_mmio_siimage - switch controller into MMIO mode - * @dev: PCI device we are configuring - * @name: device name - * - * Attempt to put the device into MMIO mode. There are some slight - * complications here with certain systems where the MMIO BAR isn't - * mapped, so we have to be sure that we can fall back to I/O. - */ - -static unsigned int setup_mmio_siimage(struct pci_dev *dev, const char *name) -{ - resource_size_t bar5 = pci_resource_start(dev, 5); - unsigned long barsize = pci_resource_len(dev, 5); - void __iomem *ioaddr; - - /* - * Drop back to PIO if we can't map the MMIO. Some systems - * seem to get terminally confused in the PCI spaces. - */ - if (!request_mem_region(bar5, barsize, name)) { - printk(KERN_WARNING "siimage: IDE controller MMIO ports not " - "available.\n"); - return 0; - } - - ioaddr = ioremap(bar5, barsize); - if (ioaddr == NULL) { - release_mem_region(bar5, barsize); - return 0; - } - - pci_set_master(dev); - pci_set_drvdata(dev, (void *) ioaddr); - - return 1; -} - -/** * init_chipset_siimage - set up an SI device * @dev: PCI device - * @name: device name * * Perform the initial PCI set up for this device. Attempt to switch * to 133 MHz clocking if the system isn't already set up to do it. */ -static unsigned int __devinit init_chipset_siimage(struct pci_dev *dev, - const char *name) +static unsigned int __devinit init_chipset_siimage(struct pci_dev *dev) { + struct ide_host *host = pci_get_drvdata(dev); + void __iomem *ioaddr = host->host_priv; unsigned long base, scsc_addr; - void __iomem *ioaddr = NULL; - u8 rev = dev->revision, tmp, BA5_EN; + u8 rev = dev->revision, tmp; pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, rev ? 1 : 255); - pci_read_config_byte(dev, 0x8A, &BA5_EN); - - if ((BA5_EN & 0x01) || pci_resource_start(dev, 5)) - if (setup_mmio_siimage(dev, name)) - ioaddr = pci_get_drvdata(dev); + if (ioaddr) + pci_set_master(dev); base = (unsigned long)ioaddr; @@ -571,7 +539,8 @@ static unsigned int __devinit init_chipset_siimage(struct pci_dev *dev, { "== 100", "== 133", "== 2X PCI", "DISABLED!" }; tmp >>= 4; - printk(KERN_INFO "%s: BASE CLOCK %s\n", name, clk_str[tmp & 3]); + printk(KERN_INFO DRV_NAME " %s: BASE CLOCK %s\n", + pci_name(dev), clk_str[tmp & 3]); } return 0; @@ -592,7 +561,8 @@ static unsigned int __devinit init_chipset_siimage(struct pci_dev *dev, static void __devinit init_mmio_iops_siimage(ide_hwif_t *hwif) { struct pci_dev *dev = to_pci_dev(hwif->dev); - void *addr = pci_get_drvdata(dev); + struct ide_host *host = pci_get_drvdata(dev); + void *addr = host->host_priv; u8 ch = hwif->channel; struct ide_io_ports *io_ports = &hwif->io_ports; unsigned long base; @@ -691,16 +661,15 @@ static void __devinit sil_quirkproc(ide_drive_t *drive) static void __devinit init_iops_siimage(ide_hwif_t *hwif) { struct pci_dev *dev = to_pci_dev(hwif->dev); + struct ide_host *host = pci_get_drvdata(dev); hwif->hwif_data = NULL; /* Pessimal until we finish probing */ hwif->rqsize = 15; - if (pci_get_drvdata(dev) == NULL) - return; - - init_mmio_iops_siimage(hwif); + if (host->host_priv) + init_mmio_iops_siimage(hwif); } /** @@ -748,9 +717,9 @@ static const struct ide_dma_ops sil_dma_ops = { .dma_lost_irq = ide_dma_lost_irq, }; -#define DECLARE_SII_DEV(name_str, p_ops) \ +#define DECLARE_SII_DEV(p_ops) \ { \ - .name = name_str, \ + .name = DRV_NAME, \ .init_chipset = init_chipset_siimage, \ .init_iops = init_iops_siimage, \ .port_ops = p_ops, \ @@ -761,9 +730,8 @@ static const struct ide_dma_ops sil_dma_ops = { } static const struct ide_port_info siimage_chipsets[] __devinitdata = { - /* 0 */ DECLARE_SII_DEV("SiI680", &sil_pata_port_ops), - /* 1 */ DECLARE_SII_DEV("SiI3112 Serial ATA", &sil_sata_port_ops), - /* 2 */ DECLARE_SII_DEV("Adaptec AAR-1210SA", &sil_sata_port_ops) + /* 0: SiI680 */ DECLARE_SII_DEV(&sil_pata_port_ops), + /* 1: SiI3112 */ DECLARE_SII_DEV(&sil_sata_port_ops) }; /** @@ -778,8 +746,13 @@ static const struct ide_port_info siimage_chipsets[] __devinitdata = { static int __devinit siimage_init_one(struct pci_dev *dev, const struct pci_device_id *id) { + void __iomem *ioaddr = NULL; + resource_size_t bar5 = pci_resource_start(dev, 5); + unsigned long barsize = pci_resource_len(dev, 5); + int rc; struct ide_port_info d; u8 idx = id->driver_data; + u8 BA5_EN; d = siimage_chipsets[idx]; @@ -787,7 +760,7 @@ static int __devinit siimage_init_one(struct pci_dev *dev, static int first = 1; if (first) { - printk(KERN_INFO "siimage: For full SATA support you " + printk(KERN_INFO DRV_NAME ": For full SATA support you " "should use the libata sata_sil module.\n"); first = 0; } @@ -795,14 +768,61 @@ static int __devinit siimage_init_one(struct pci_dev *dev, d.host_flags |= IDE_HFLAG_NO_ATAPI_DMA; } - return ide_setup_pci_device(dev, &d); + rc = pci_enable_device(dev); + if (rc) + return rc; + + pci_read_config_byte(dev, 0x8A, &BA5_EN); + if ((BA5_EN & 0x01) || bar5) { + /* + * Drop back to PIO if we can't map the MMIO. Some systems + * seem to get terminally confused in the PCI spaces. + */ + if (!request_mem_region(bar5, barsize, d.name)) { + printk(KERN_WARNING DRV_NAME " %s: MMIO ports not " + "available\n", pci_name(dev)); + } else { + ioaddr = ioremap(bar5, barsize); + if (ioaddr == NULL) + release_mem_region(bar5, barsize); + } + } + + rc = ide_pci_init_one(dev, &d, ioaddr); + if (rc) { + if (ioaddr) { + iounmap(ioaddr); + release_mem_region(bar5, barsize); + } + pci_disable_device(dev); + } + + return rc; +} + +static void __devexit siimage_remove(struct pci_dev *dev) +{ + struct ide_host *host = pci_get_drvdata(dev); + void __iomem *ioaddr = host->host_priv; + + ide_pci_remove(dev); + + if (ioaddr) { + resource_size_t bar5 = pci_resource_start(dev, 5); + unsigned long barsize = pci_resource_len(dev, 5); + + iounmap(ioaddr); + release_mem_region(bar5, barsize); + } + + pci_disable_device(dev); } static const struct pci_device_id siimage_pci_tbl[] = { { PCI_VDEVICE(CMD, PCI_DEVICE_ID_SII_680), 0 }, #ifdef CONFIG_BLK_DEV_IDE_SATA { PCI_VDEVICE(CMD, PCI_DEVICE_ID_SII_3112), 1 }, - { PCI_VDEVICE(CMD, PCI_DEVICE_ID_SII_1210SA), 2 }, + { PCI_VDEVICE(CMD, PCI_DEVICE_ID_SII_1210SA), 1 }, #endif { 0, }, }; @@ -812,6 +832,7 @@ static struct pci_driver driver = { .name = "SiI_IDE", .id_table = siimage_pci_tbl, .probe = siimage_init_one, + .remove = siimage_remove, }; static int __init siimage_ide_init(void) @@ -819,7 +840,13 @@ static int __init siimage_ide_init(void) return ide_pci_register_driver(&driver); } +static void __exit siimage_ide_exit(void) +{ + pci_unregister_driver(&driver); +} + module_init(siimage_ide_init); +module_exit(siimage_ide_exit); MODULE_AUTHOR("Andre Hedrick, Alan Cox"); MODULE_DESCRIPTION("PCI driver module for SiI IDE"); diff --git a/drivers/ide/pci/sis5513.c b/drivers/ide/pci/sis5513.c index 2389945..cc95f90 100644 --- a/drivers/ide/pci/sis5513.c +++ b/drivers/ide/pci/sis5513.c @@ -52,6 +52,8 @@ #include <linux/init.h> #include <linux/ide.h> +#define DRV_NAME "sis5513" + /* registers layout and init values are chipset family dependant */ #define ATA_16 0x01 @@ -380,8 +382,9 @@ static int __devinit sis_find_family(struct pci_dev *dev) } pci_dev_put(host); - printk(KERN_INFO "SIS5513: %s %s controller\n", - SiSHostChipInfo[i].name, chipset_capability[chipset_family]); + printk(KERN_INFO DRV_NAME " %s: %s %s controller\n", + pci_name(dev), SiSHostChipInfo[i].name, + chipset_capability[chipset_family]); } if (!chipset_family) { /* Belongs to pci-quirks */ @@ -396,7 +399,8 @@ static int __devinit sis_find_family(struct pci_dev *dev) pci_write_config_dword(dev, 0x54, idemisc); if (trueid == 0x5518) { - printk(KERN_INFO "SIS5513: SiS 962/963 MuTIOL IDE UDMA133 controller\n"); + printk(KERN_INFO DRV_NAME " %s: SiS 962/963 MuTIOL IDE UDMA133 controller\n", + pci_name(dev)); chipset_family = ATA_133; /* Check for 5513 compability mapping @@ -405,7 +409,8 @@ static int __devinit sis_find_family(struct pci_dev *dev) */ if ((idemisc & 0x40000000) == 0) { pci_write_config_dword(dev, 0x54, idemisc | 0x40000000); - printk(KERN_INFO "SIS5513: Switching to 5513 register mapping\n"); + printk(KERN_INFO DRV_NAME " %s: Switching to 5513 register mapping\n", + pci_name(dev)); } } } @@ -429,10 +434,12 @@ static int __devinit sis_find_family(struct pci_dev *dev) pci_dev_put(lpc_bridge); if (lpc_bridge->revision == 0x10 && (prefctl & 0x80)) { - printk(KERN_INFO "SIS5513: SiS 961B MuTIOL IDE UDMA133 controller\n"); + printk(KERN_INFO DRV_NAME " %s: SiS 961B MuTIOL IDE UDMA133 controller\n", + pci_name(dev)); chipset_family = ATA_133a; } else { - printk(KERN_INFO "SIS5513: SiS 961 MuTIOL IDE UDMA100 controller\n"); + printk(KERN_INFO DRV_NAME " %s: SiS 961 MuTIOL IDE UDMA100 controller\n", + pci_name(dev)); chipset_family = ATA_100; } } @@ -441,8 +448,7 @@ static int __devinit sis_find_family(struct pci_dev *dev) return chipset_family; } -static unsigned int __devinit init_chipset_sis5513(struct pci_dev *dev, - const char *name) +static unsigned int __devinit init_chipset_sis5513(struct pci_dev *dev) { /* Make general config ops here 1/ tell IDE channels to operate in Compatibility mode only @@ -555,7 +561,7 @@ static const struct ide_port_ops sis_ata133_port_ops = { }; static const struct ide_port_info sis5513_chipset __devinitdata = { - .name = "SIS5513", + .name = DRV_NAME, .init_chipset = init_chipset_sis5513, .enablebits = { {0x4a, 0x02, 0x02}, {0x4a, 0x04, 0x04} }, .host_flags = IDE_HFLAG_LEGACY_IRQS | IDE_HFLAG_NO_AUTODMA, @@ -583,7 +589,13 @@ static int __devinit sis5513_init_one(struct pci_dev *dev, const struct pci_devi d.udma_mask = udma_rates[chipset_family]; - return ide_setup_pci_device(dev, &d); + return ide_pci_init_one(dev, &d, NULL); +} + +static void __devexit sis5513_remove(struct pci_dev *dev) +{ + ide_pci_remove(dev); + pci_disable_device(dev); } static const struct pci_device_id sis5513_pci_tbl[] = { @@ -598,6 +610,7 @@ static struct pci_driver driver = { .name = "SIS_IDE", .id_table = sis5513_pci_tbl, .probe = sis5513_init_one, + .remove = sis5513_remove, }; static int __init sis5513_ide_init(void) @@ -605,7 +618,13 @@ static int __init sis5513_ide_init(void) return ide_pci_register_driver(&driver); } +static void __exit sis5513_ide_exit(void) +{ + pci_unregister_driver(&driver); +} + module_init(sis5513_ide_init); +module_exit(sis5513_ide_exit); MODULE_AUTHOR("Lionel Bouton, L C Chang, Andre Hedrick, Vojtech Pavlik"); MODULE_DESCRIPTION("PCI driver module for SIS IDE"); diff --git a/drivers/ide/pci/sl82c105.c b/drivers/ide/pci/sl82c105.c index f82a650..73905bc 100644 --- a/drivers/ide/pci/sl82c105.c +++ b/drivers/ide/pci/sl82c105.c @@ -23,6 +23,8 @@ #include <asm/io.h> +#define DRV_NAME "sl82c105" + #undef DEBUG #ifdef DEBUG @@ -270,7 +272,7 @@ static u8 sl82c105_bridge_revision(struct pci_dev *dev) * channel 0 here at least, but channel 1 has to be enabled by * firmware or arch code. We still set both to 16 bits mode. */ -static unsigned int __devinit init_chipset_sl82c105(struct pci_dev *dev, const char *msg) +static unsigned int __devinit init_chipset_sl82c105(struct pci_dev *dev) { u32 val; @@ -301,7 +303,7 @@ static const struct ide_dma_ops sl82c105_dma_ops = { }; static const struct ide_port_info sl82c105_chipset __devinitdata = { - .name = "W82C105", + .name = DRV_NAME, .init_chipset = init_chipset_sl82c105, .enablebits = {{0x40,0x01,0x01}, {0x40,0x10,0x10}}, .port_ops = &sl82c105_port_ops, @@ -328,14 +330,14 @@ static int __devinit sl82c105_init_one(struct pci_dev *dev, const struct pci_dev * Never ever EVER under any circumstances enable * DMA when the bridge is this old. */ - printk(KERN_INFO "W82C105_IDE: Winbond W83C553 bridge " + printk(KERN_INFO DRV_NAME ": Winbond W83C553 bridge " "revision %d, BM-DMA disabled\n", rev); d.dma_ops = NULL; d.mwdma_mask = 0; d.host_flags &= ~IDE_HFLAG_SERIALIZE_DMA; } - return ide_setup_pci_device(dev, &d); + return ide_pci_init_one(dev, &d, NULL); } static const struct pci_device_id sl82c105_pci_tbl[] = { @@ -348,6 +350,7 @@ static struct pci_driver driver = { .name = "W82C105_IDE", .id_table = sl82c105_pci_tbl, .probe = sl82c105_init_one, + .remove = ide_pci_remove, }; static int __init sl82c105_ide_init(void) @@ -355,7 +358,13 @@ static int __init sl82c105_ide_init(void) return ide_pci_register_driver(&driver); } +static void __exit sl82c105_ide_exit(void) +{ + pci_unregister_driver(&driver); +} + module_init(sl82c105_ide_init); +module_exit(sl82c105_ide_exit); MODULE_DESCRIPTION("PCI driver module for W82C105 IDE"); MODULE_LICENSE("GPL"); diff --git a/drivers/ide/pci/slc90e66.c b/drivers/ide/pci/slc90e66.c index dae6e2c..13d1fa4 100644 --- a/drivers/ide/pci/slc90e66.c +++ b/drivers/ide/pci/slc90e66.c @@ -15,6 +15,8 @@ #include <linux/ide.h> #include <linux/init.h> +#define DRV_NAME "slc90e66" + static DEFINE_SPINLOCK(slc90e66_lock); static void slc90e66_set_pio_mode(ide_drive_t *drive, const u8 pio) @@ -132,7 +134,7 @@ static const struct ide_port_ops slc90e66_port_ops = { }; static const struct ide_port_info slc90e66_chipset __devinitdata = { - .name = "SLC90E66", + .name = DRV_NAME, .enablebits = { {0x41, 0x80, 0x80}, {0x43, 0x80, 0x80} }, .port_ops = &slc90e66_port_ops, .host_flags = IDE_HFLAG_LEGACY_IRQS, @@ -144,7 +146,7 @@ static const struct ide_port_info slc90e66_chipset __devinitdata = { static int __devinit slc90e66_init_one(struct pci_dev *dev, const struct pci_device_id *id) { - return ide_setup_pci_device(dev, &slc90e66_chipset); + return ide_pci_init_one(dev, &slc90e66_chipset, NULL); } static const struct pci_device_id slc90e66_pci_tbl[] = { @@ -157,6 +159,7 @@ static struct pci_driver driver = { .name = "SLC90e66_IDE", .id_table = slc90e66_pci_tbl, .probe = slc90e66_init_one, + .remove = ide_pci_remove, }; static int __init slc90e66_ide_init(void) @@ -164,7 +167,13 @@ static int __init slc90e66_ide_init(void) return ide_pci_register_driver(&driver); } +static void __exit slc90e66_ide_exit(void) +{ + pci_unregister_driver(&driver); +} + module_init(slc90e66_ide_init); +module_exit(slc90e66_ide_exit); MODULE_AUTHOR("Andre Hedrick"); MODULE_DESCRIPTION("PCI driver module for SLC90E66 IDE"); diff --git a/drivers/ide/pci/tc86c001.c b/drivers/ide/pci/tc86c001.c index 477e197..b1cb8a9 100644 --- a/drivers/ide/pci/tc86c001.c +++ b/drivers/ide/pci/tc86c001.c @@ -11,6 +11,8 @@ #include <linux/pci.h> #include <linux/ide.h> +#define DRV_NAME "tc86c001" + static void tc86c001_set_mode(ide_drive_t *drive, const u8 speed) { ide_hwif_t *hwif = HWIF(drive); @@ -173,16 +175,6 @@ static void __devinit init_hwif_tc86c001(ide_hwif_t *hwif) hwif->rqsize = 0xffff; } -static unsigned int __devinit init_chipset_tc86c001(struct pci_dev *dev, - const char *name) -{ - int err = pci_request_region(dev, 5, name); - - if (err) - printk(KERN_ERR "%s: system control regs already in use", name); - return err; -} - static const struct ide_port_ops tc86c001_port_ops = { .set_pio_mode = tc86c001_set_pio_mode, .set_dma_mode = tc86c001_set_mode, @@ -201,8 +193,7 @@ static const struct ide_dma_ops tc86c001_dma_ops = { }; static const struct ide_port_info tc86c001_chipset __devinitdata = { - .name = "TC86C001", - .init_chipset = init_chipset_tc86c001, + .name = DRV_NAME, .init_hwif = init_hwif_tc86c001, .port_ops = &tc86c001_port_ops, .dma_ops = &tc86c001_dma_ops, @@ -215,7 +206,37 @@ static const struct ide_port_info tc86c001_chipset __devinitdata = { static int __devinit tc86c001_init_one(struct pci_dev *dev, const struct pci_device_id *id) { - return ide_setup_pci_device(dev, &tc86c001_chipset); + int rc; + + rc = pci_enable_device(dev); + if (rc) + goto out; + + rc = pci_request_region(dev, 5, DRV_NAME); + if (rc) { + printk(KERN_ERR DRV_NAME ": system control regs already in use"); + goto out_disable; + } + + rc = ide_pci_init_one(dev, &tc86c001_chipset, NULL); + if (rc) + goto out_release; + + goto out; + +out_release: + pci_release_region(dev, 5); +out_disable: + pci_disable_device(dev); +out: + return rc; +} + +static void __devexit tc86c001_remove(struct pci_dev *dev) +{ + ide_pci_remove(dev); + pci_release_region(dev, 5); + pci_disable_device(dev); } static const struct pci_device_id tc86c001_pci_tbl[] = { @@ -227,14 +248,22 @@ MODULE_DEVICE_TABLE(pci, tc86c001_pci_tbl); static struct pci_driver driver = { .name = "TC86C001", .id_table = tc86c001_pci_tbl, - .probe = tc86c001_init_one + .probe = tc86c001_init_one, + .remove = tc86c001_remove, }; static int __init tc86c001_ide_init(void) { return ide_pci_register_driver(&driver); } + +static void __exit tc86c001_ide_exit(void) +{ + pci_unregister_driver(&driver); +} + module_init(tc86c001_ide_init); +module_exit(tc86c001_ide_exit); MODULE_AUTHOR("MontaVista Software, Inc. <source@mvista.com>"); MODULE_DESCRIPTION("PCI driver module for TC86C001 IDE"); diff --git a/drivers/ide/pci/triflex.c b/drivers/ide/pci/triflex.c index db65a55..b77ec35 100644 --- a/drivers/ide/pci/triflex.c +++ b/drivers/ide/pci/triflex.c @@ -33,6 +33,8 @@ #include <linux/ide.h> #include <linux/init.h> +#define DRV_NAME "triflex" + static void triflex_set_mode(ide_drive_t *drive, const u8 speed) { ide_hwif_t *hwif = HWIF(drive); @@ -93,7 +95,7 @@ static const struct ide_port_ops triflex_port_ops = { }; static const struct ide_port_info triflex_device __devinitdata = { - .name = "TRIFLEX", + .name = DRV_NAME, .enablebits = {{0x80, 0x01, 0x01}, {0x80, 0x02, 0x02}}, .port_ops = &triflex_port_ops, .pio_mask = ATA_PIO4, @@ -104,7 +106,7 @@ static const struct ide_port_info triflex_device __devinitdata = { static int __devinit triflex_init_one(struct pci_dev *dev, const struct pci_device_id *id) { - return ide_setup_pci_device(dev, &triflex_device); + return ide_pci_init_one(dev, &triflex_device, NULL); } static const struct pci_device_id triflex_pci_tbl[] = { @@ -117,6 +119,7 @@ static struct pci_driver driver = { .name = "TRIFLEX_IDE", .id_table = triflex_pci_tbl, .probe = triflex_init_one, + .remove = ide_pci_remove, }; static int __init triflex_ide_init(void) @@ -124,7 +127,13 @@ static int __init triflex_ide_init(void) return ide_pci_register_driver(&driver); } +static void __exit triflex_ide_exit(void) +{ + pci_unregister_driver(&driver); +} + module_init(triflex_ide_init); +module_exit(triflex_ide_exit); MODULE_AUTHOR("Torben Mathiasen"); MODULE_DESCRIPTION("PCI driver module for Compaq Triflex IDE"); diff --git a/drivers/ide/pci/trm290.c b/drivers/ide/pci/trm290.c index a8a3138..fd28b49 100644 --- a/drivers/ide/pci/trm290.c +++ b/drivers/ide/pci/trm290.c @@ -141,6 +141,8 @@ #include <asm/io.h> +#define DRV_NAME "trm290" + static void trm290_prepare_drive (ide_drive_t *drive, unsigned int use_dma) { ide_hwif_t *hwif = HWIF(drive); @@ -245,10 +247,10 @@ static void __devinit init_hwif_trm290(ide_hwif_t *hwif) u8 reg = 0; if ((dev->class & 5) && cfg_base) - printk(KERN_INFO "TRM290: chip"); + printk(KERN_INFO DRV_NAME " %s: chip", pci_name(dev)); else { cfg_base = 0x3df0; - printk(KERN_INFO "TRM290: using default"); + printk(KERN_INFO DRV_NAME " %s: using default", pci_name(dev)); } printk(KERN_CONT " config base at 0x%04x\n", cfg_base); hwif->config_data = cfg_base; @@ -325,7 +327,7 @@ static struct ide_dma_ops trm290_dma_ops = { }; static const struct ide_port_info trm290_chipset __devinitdata = { - .name = "TRM290", + .name = DRV_NAME, .init_hwif = init_hwif_trm290, .chipset = ide_trm290, .port_ops = &trm290_port_ops, @@ -340,7 +342,7 @@ static const struct ide_port_info trm290_chipset __devinitdata = { static int __devinit trm290_init_one(struct pci_dev *dev, const struct pci_device_id *id) { - return ide_setup_pci_device(dev, &trm290_chipset); + return ide_pci_init_one(dev, &trm290_chipset, NULL); } static const struct pci_device_id trm290_pci_tbl[] = { @@ -353,6 +355,7 @@ static struct pci_driver driver = { .name = "TRM290_IDE", .id_table = trm290_pci_tbl, .probe = trm290_init_one, + .remove = ide_pci_remove, }; static int __init trm290_ide_init(void) @@ -360,7 +363,13 @@ static int __init trm290_ide_init(void) return ide_pci_register_driver(&driver); } +static void __exit trm290_ide_exit(void) +{ + pci_unregister_driver(&driver); +} + module_init(trm290_ide_init); +module_exit(trm290_ide_exit); MODULE_AUTHOR("Mark Lord"); MODULE_DESCRIPTION("PCI driver module for Tekram TRM290 IDE"); diff --git a/drivers/ide/pci/via82cxxx.c b/drivers/ide/pci/via82cxxx.c index 09dc480..454d2bf 100644 --- a/drivers/ide/pci/via82cxxx.c +++ b/drivers/ide/pci/via82cxxx.c @@ -35,6 +35,8 @@ #include <asm/processor.h> #endif +#define DRV_NAME "via82cxxx" + #define VIA_IDE_ENABLE 0x40 #define VIA_IDE_CONFIG 0x41 #define VIA_FIFO_CONFIG 0x43 @@ -113,7 +115,8 @@ struct via82cxxx_dev static void via_set_speed(ide_hwif_t *hwif, u8 dn, struct ide_timing *timing) { struct pci_dev *dev = to_pci_dev(hwif->dev); - struct via82cxxx_dev *vdev = pci_get_drvdata(dev); + struct ide_host *host = pci_get_drvdata(dev); + struct via82cxxx_dev *vdev = host->host_priv; u8 t; if (~vdev->via_config->flags & VIA_BAD_AST) { @@ -153,7 +156,8 @@ static void via_set_drive(ide_drive_t *drive, const u8 speed) ide_hwif_t *hwif = drive->hwif; ide_drive_t *peer = hwif->drives + (~drive->dn & 1); struct pci_dev *dev = to_pci_dev(hwif->dev); - struct via82cxxx_dev *vdev = pci_get_drvdata(dev); + struct ide_host *host = pci_get_drvdata(dev); + struct via82cxxx_dev *vdev = host->host_priv; struct ide_timing t, p; unsigned int T, UT; @@ -258,37 +262,19 @@ static void __devinit via_cable_detect(struct via82cxxx_dev *vdev, u32 u) /** * init_chipset_via82cxxx - initialization handler * @dev: PCI device - * @name: Name of interface * * The initialization callback. Here we determine the IDE chip type * and initialize its drive independent registers. */ -static unsigned int __devinit init_chipset_via82cxxx(struct pci_dev *dev, const char *name) +static unsigned int __devinit init_chipset_via82cxxx(struct pci_dev *dev) { - struct pci_dev *isa = NULL; - struct via82cxxx_dev *vdev; - struct via_isa_bridge *via_config; + struct ide_host *host = pci_get_drvdata(dev); + struct via82cxxx_dev *vdev = host->host_priv; + struct via_isa_bridge *via_config = vdev->via_config; u8 t, v; u32 u; - vdev = kzalloc(sizeof(*vdev), GFP_KERNEL); - if (!vdev) { - printk(KERN_ERR "VP_IDE: out of memory :(\n"); - return -ENOMEM; - } - pci_set_drvdata(dev, vdev); - - /* - * Find the ISA bridge to see how good the IDE is. - */ - vdev->via_config = via_config = via_config_find(&isa); - - /* We checked this earlier so if it fails here deeep badness - is involved */ - - BUG_ON(!via_config->id); - /* * Detect cable and configure Clk66 */ @@ -334,39 +320,6 @@ static unsigned int __devinit init_chipset_via82cxxx(struct pci_dev *dev, const pci_write_config_byte(dev, VIA_FIFO_CONFIG, t); - /* - * Determine system bus clock. - */ - - via_clock = (ide_pci_clk ? ide_pci_clk : 33) * 1000; - - switch (via_clock) { - case 33000: via_clock = 33333; break; - case 37000: via_clock = 37500; break; - case 41000: via_clock = 41666; break; - } - - if (via_clock < 20000 || via_clock > 50000) { - printk(KERN_WARNING "VP_IDE: User given PCI clock speed " - "impossible (%d), using 33 MHz instead.\n", via_clock); - printk(KERN_WARNING "VP_IDE: Use ide0=ata66 if you want " - "to assume 80-wire cable.\n"); - via_clock = 33333; - } - - /* - * Print the boot message. - */ - - printk(KERN_INFO "VP_IDE: VIA %s (rev %02x) IDE %sDMA%s " - "controller on pci%s\n", - via_config->name, isa->revision, - via_config->udma_mask ? "U" : "MW", - via_dma[via_config->udma_mask ? - (fls(via_config->udma_mask) - 1) : 0], - pci_name(dev)); - - pci_dev_put(isa); return 0; } @@ -402,7 +355,8 @@ static int via_cable_override(struct pci_dev *pdev) static u8 __devinit via82cxxx_cable_detect(ide_hwif_t *hwif) { struct pci_dev *pdev = to_pci_dev(hwif->dev); - struct via82cxxx_dev *vdev = pci_get_drvdata(pdev); + struct ide_host *host = pci_get_drvdata(pdev); + struct via82cxxx_dev *vdev = host->host_priv; if (via_cable_override(pdev)) return ATA_CBL_PATA40_SHORT; @@ -420,7 +374,7 @@ static const struct ide_port_ops via_port_ops = { }; static const struct ide_port_info via82cxxx_chipset __devinitdata = { - .name = "VP_IDE", + .name = DRV_NAME, .init_chipset = init_chipset_via82cxxx, .enablebits = { { 0x40, 0x02, 0x02 }, { 0x40, 0x01, 0x01 } }, .port_ops = &via_port_ops, @@ -436,6 +390,8 @@ static int __devinit via_init_one(struct pci_dev *dev, const struct pci_device_i { struct pci_dev *isa = NULL; struct via_isa_bridge *via_config; + struct via82cxxx_dev *vdev; + int rc; u8 idx = id->driver_data; struct ide_port_info d; @@ -445,12 +401,42 @@ static int __devinit via_init_one(struct pci_dev *dev, const struct pci_device_i * Find the ISA bridge and check we know what it is. */ via_config = via_config_find(&isa); - pci_dev_put(isa); if (!via_config->id) { - printk(KERN_WARNING "VP_IDE: Unknown VIA SouthBridge, disabling DMA.\n"); + printk(KERN_WARNING DRV_NAME " %s: unknown chipset, skipping\n", + pci_name(dev)); return -ENODEV; } + /* + * Print the boot message. + */ + printk(KERN_INFO DRV_NAME " %s: VIA %s (rev %02x) IDE %sDMA%s\n", + pci_name(dev), via_config->name, isa->revision, + via_config->udma_mask ? "U" : "MW", + via_dma[via_config->udma_mask ? + (fls(via_config->udma_mask) - 1) : 0]); + + pci_dev_put(isa); + + /* + * Determine system bus clock. + */ + via_clock = (ide_pci_clk ? ide_pci_clk : 33) * 1000; + + switch (via_clock) { + case 33000: via_clock = 33333; break; + case 37000: via_clock = 37500; break; + case 41000: via_clock = 41666; break; + } + + if (via_clock < 20000 || via_clock > 50000) { + printk(KERN_WARNING DRV_NAME ": User given PCI clock speed " + "impossible (%d), using 33 MHz instead.\n", via_clock); + printk(KERN_WARNING DRV_NAME ": Use ide0=ata66 if you want " + "to assume 80-wire cable.\n"); + via_clock = 33333; + } + if (idx == 0) d.host_flags |= IDE_HFLAG_NO_AUTODMA; else @@ -466,7 +452,29 @@ static int __devinit via_init_one(struct pci_dev *dev, const struct pci_device_i d.udma_mask = via_config->udma_mask; - return ide_setup_pci_device(dev, &d); + vdev = kzalloc(sizeof(*vdev), GFP_KERNEL); + if (!vdev) { + printk(KERN_ERR DRV_NAME " %s: out of memory :(\n", + pci_name(dev)); + return -ENOMEM; + } + + vdev->via_config = via_config; + + rc = ide_pci_init_one(dev, &d, vdev); + if (rc) + kfree(vdev); + + return rc; +} + +static void __devexit via_remove(struct pci_dev *dev) +{ + struct ide_host *host = pci_get_drvdata(dev); + struct via82cxxx_dev *vdev = host->host_priv; + + ide_pci_remove(dev); + kfree(vdev); } static const struct pci_device_id via_pci_tbl[] = { @@ -483,6 +491,7 @@ static struct pci_driver driver = { .name = "VIA_IDE", .id_table = via_pci_tbl, .probe = via_init_one, + .remove = via_remove, }; static int __init via_ide_init(void) @@ -490,7 +499,13 @@ static int __init via_ide_init(void) return ide_pci_register_driver(&driver); } +static void __exit via_ide_exit(void) +{ + pci_unregister_driver(&driver); +} + module_init(via_ide_init); +module_exit(via_ide_exit); MODULE_AUTHOR("Vojtech Pavlik, Michel Aubry, Jeff Garzik, Andre Hedrick"); MODULE_DESCRIPTION("PCI driver module for VIA IDE"); diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c index b15cad5..a8e9e8a 100644 --- a/drivers/ide/setup-pci.c +++ b/drivers/ide/setup-pci.c @@ -39,17 +39,18 @@ static int ide_setup_pci_baseregs(struct pci_dev *dev, const char *name) if (pci_read_config_byte(dev, PCI_CLASS_PROG, &progif) || (progif & 5) != 5) { if ((progif & 0xa) != 0xa) { - printk(KERN_INFO "%s: device not capable of full " - "native PCI mode\n", name); + printk(KERN_INFO "%s %s: device not capable of full " + "native PCI mode\n", name, pci_name(dev)); return -EOPNOTSUPP; } - printk("%s: placing both ports into native PCI mode\n", name); + printk(KERN_INFO "%s %s: placing both ports into native PCI " + "mode\n", name, pci_name(dev)); (void) pci_write_config_byte(dev, PCI_CLASS_PROG, progif|5); if (pci_read_config_byte(dev, PCI_CLASS_PROG, &progif) || (progif & 5) != 5) { - printk(KERN_ERR "%s: rewrite of PROGIF failed, wanted " - "0x%04x, got 0x%04x\n", - name, progif|5, progif); + printk(KERN_ERR "%s %s: rewrite of PROGIF failed, " + "wanted 0x%04x, got 0x%04x\n", + name, pci_name(dev), progif | 5, progif); return -EOPNOTSUPP; } } @@ -57,14 +58,14 @@ static int ide_setup_pci_baseregs(struct pci_dev *dev, const char *name) } #ifdef CONFIG_BLK_DEV_IDEDMA_PCI -static void ide_pci_clear_simplex(unsigned long dma_base, const char *name) +static int ide_pci_clear_simplex(unsigned long dma_base, const char *name) { u8 dma_stat = inb(dma_base + 2); outb(dma_stat & 0x60, dma_base + 2); dma_stat = inb(dma_base + 2); - if (dma_stat & 0x80) - printk(KERN_INFO "%s: simplex device: DMA forced\n", name); + + return (dma_stat & 0x80) ? 1 : 0; } /** @@ -91,7 +92,8 @@ unsigned long ide_pci_dma_base(ide_hwif_t *hwif, const struct ide_port_info *d) dma_base = pci_resource_start(dev, baridx); if (dma_base == 0) { - printk(KERN_ERR "%s: DMA base is invalid\n", d->name); + printk(KERN_ERR "%s %s: DMA base is invalid\n", + d->name, pci_name(dev)); return 0; } } @@ -105,13 +107,16 @@ EXPORT_SYMBOL_GPL(ide_pci_dma_base); int ide_pci_check_simplex(ide_hwif_t *hwif, const struct ide_port_info *d) { + struct pci_dev *dev = to_pci_dev(hwif->dev); u8 dma_stat; if (d->host_flags & (IDE_HFLAG_MMIO | IDE_HFLAG_CS5520)) goto out; if (d->host_flags & IDE_HFLAG_CLEAR_SIMPLEX) { - ide_pci_clear_simplex(hwif->dma_base, d->name); + if (ide_pci_clear_simplex(hwif->dma_base, d->name)) + printk(KERN_INFO "%s %s: simplex device: DMA forced\n", + d->name, pci_name(dev)); goto out; } @@ -127,7 +132,8 @@ int ide_pci_check_simplex(ide_hwif_t *hwif, const struct ide_port_info *d) */ dma_stat = hwif->tp_ops->read_sff_dma_status(hwif); if ((dma_stat & 0x80) && hwif->mate && hwif->mate->dma_base) { - printk(KERN_INFO "%s: simplex device: DMA disabled\n", d->name); + printk(KERN_INFO "%s %s: simplex device: DMA disabled\n", + d->name, pci_name(dev)); return -1; } out: @@ -149,8 +155,8 @@ int ide_pci_set_master(struct pci_dev *dev, const char *name) if (pci_read_config_word(dev, PCI_COMMAND, &pcicmd) || (pcicmd & PCI_COMMAND_MASTER) == 0) { - printk(KERN_ERR "%s: error updating PCICMD on %s\n", - name, pci_name(dev)); + printk(KERN_ERR "%s %s: error updating PCICMD\n", + name, pci_name(dev)); return -EIO; } } @@ -162,9 +168,9 @@ EXPORT_SYMBOL_GPL(ide_pci_set_master); void ide_setup_pci_noise(struct pci_dev *dev, const struct ide_port_info *d) { - printk(KERN_INFO "%s: IDE controller (0x%04x:0x%04x rev 0x%02x) at " - " PCI slot %s\n", d->name, dev->vendor, dev->device, - dev->revision, pci_name(dev)); + printk(KERN_INFO "%s %s: IDE controller (0x%04x:0x%04x rev 0x%02x)\n", + d->name, pci_name(dev), + dev->vendor, dev->device, dev->revision); } EXPORT_SYMBOL_GPL(ide_setup_pci_noise); @@ -189,11 +195,12 @@ static int ide_pci_enable(struct pci_dev *dev, const struct ide_port_info *d) if (pci_enable_device(dev)) { ret = pci_enable_device_io(dev); if (ret < 0) { - printk(KERN_WARNING "%s: (ide_setup_pci_device:) " - "Could not enable device.\n", d->name); + printk(KERN_WARNING "%s %s: couldn't enable device\n", + d->name, pci_name(dev)); goto out; } - printk(KERN_WARNING "%s: BIOS configuration fixed.\n", d->name); + printk(KERN_WARNING "%s %s: BIOS configuration fixed\n", + d->name, pci_name(dev)); } /* @@ -203,7 +210,8 @@ static int ide_pci_enable(struct pci_dev *dev, const struct ide_port_info *d) */ ret = pci_set_dma_mask(dev, DMA_32BIT_MASK); if (ret < 0) { - printk(KERN_ERR "%s: can't set dma mask\n", d->name); + printk(KERN_ERR "%s %s: can't set DMA mask\n", + d->name, pci_name(dev)); goto out; } @@ -221,7 +229,8 @@ static int ide_pci_enable(struct pci_dev *dev, const struct ide_port_info *d) ret = pci_request_selected_regions(dev, bars, d->name); if (ret < 0) - printk(KERN_ERR "%s: can't reserve resources\n", d->name); + printk(KERN_ERR "%s %s: can't reserve resources\n", + d->name, pci_name(dev)); out: return ret; } @@ -247,15 +256,18 @@ static int ide_pci_configure(struct pci_dev *dev, const struct ide_port_info *d) */ if (ide_setup_pci_baseregs(dev, d->name) || pci_write_config_word(dev, PCI_COMMAND, pcicmd | PCI_COMMAND_IO)) { - printk(KERN_INFO "%s: device disabled (BIOS)\n", d->name); + printk(KERN_INFO "%s %s: device disabled (BIOS)\n", + d->name, pci_name(dev)); return -ENODEV; } if (pci_read_config_word(dev, PCI_COMMAND, &pcicmd)) { - printk(KERN_ERR "%s: error accessing PCI regs\n", d->name); + printk(KERN_ERR "%s %s: error accessing PCI regs\n", + d->name, pci_name(dev)); return -EIO; } if (!(pcicmd & PCI_COMMAND_IO)) { - printk(KERN_ERR "%s: unable to enable IDE controller\n", d->name); + printk(KERN_ERR "%s %s: unable to enable IDE controller\n", + d->name, pci_name(dev)); return -ENXIO; } return 0; @@ -311,8 +323,9 @@ static int ide_hw_configure(struct pci_dev *dev, const struct ide_port_info *d, if ((d->host_flags & IDE_HFLAG_ISA_PORTS) == 0) { if (ide_pci_check_iomem(dev, d, 2 * port) || ide_pci_check_iomem(dev, d, 2 * port + 1)) { - printk(KERN_ERR "%s: I/O baseregs (BIOS) are reported " - "as MEM for port %d!\n", d->name, port); + printk(KERN_ERR "%s %s: I/O baseregs (BIOS) are " + "reported as MEM for port %d!\n", + d->name, pci_name(dev), port); return -EINVAL; } @@ -325,8 +338,8 @@ static int ide_hw_configure(struct pci_dev *dev, const struct ide_port_info *d, } if (!base || !ctl) { - printk(KERN_ERR "%s: bad PCI BARs for port %d, skipping\n", - d->name, port); + printk(KERN_ERR "%s %s: bad PCI BARs for port %d, skipping\n", + d->name, pci_name(dev), port); return -EINVAL; } @@ -393,14 +406,14 @@ int ide_hwif_setup_dma(ide_hwif_t *hwif, const struct ide_port_info *d) * @dev: PCI device * @d: IDE port info * @noisy: verbose flag - * @config: returned as 1 if we configured the hardware * * Set up the PCI and controller side of the IDE interface. This brings * up the PCI side of the device, checks that the device is enabled * and enables it if need be */ -static int ide_setup_pci_controller(struct pci_dev *dev, const struct ide_port_info *d, int noisy, int *config) +static int ide_setup_pci_controller(struct pci_dev *dev, + const struct ide_port_info *d, int noisy) { int ret; u16 pcicmd; @@ -414,15 +427,16 @@ static int ide_setup_pci_controller(struct pci_dev *dev, const struct ide_port_i ret = pci_read_config_word(dev, PCI_COMMAND, &pcicmd); if (ret < 0) { - printk(KERN_ERR "%s: error accessing PCI regs\n", d->name); + printk(KERN_ERR "%s %s: error accessing PCI regs\n", + d->name, pci_name(dev)); goto out; } if (!(pcicmd & PCI_COMMAND_IO)) { /* is device disabled? */ ret = ide_pci_configure(dev, d); if (ret < 0) goto out; - *config = 1; - printk(KERN_INFO "%s: device enabled (Linux)\n", d->name); + printk(KERN_INFO "%s %s: device enabled (Linux)\n", + d->name, pci_name(dev)); } out: @@ -461,7 +475,8 @@ void ide_pci_setup_ports(struct pci_dev *dev, const struct ide_port_info *d, if (e->reg && (pci_read_config_byte(dev, e->reg, &tmp) || (tmp & e->mask) != e->val)) { - printk(KERN_INFO "%s: IDE port disabled\n", d->name); + printk(KERN_INFO "%s %s: IDE port disabled\n", + d->name, pci_name(dev)); continue; /* port not enabled */ } @@ -487,51 +502,35 @@ static int do_ide_setup_pci_device(struct pci_dev *dev, const struct ide_port_info *d, u8 noisy) { - int tried_config = 0; int pciirq, ret; - ret = ide_setup_pci_controller(dev, d, noisy, &tried_config); - if (ret < 0) - goto out; - /* * Can we trust the reported IRQ? */ pciirq = dev->irq; + /* + * This allows offboard ide-pci cards the enable a BIOS, + * verify interrupt settings of split-mirror pci-config + * space, place chipset into init-mode, and/or preserve + * an interrupt if the card is not native ide support. + */ + ret = d->init_chipset ? d->init_chipset(dev) : 0; + if (ret < 0) + goto out; + /* Is it an "IDE storage" device in non-PCI mode? */ if ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE && (dev->class & 5) != 5) { if (noisy) - printk(KERN_INFO "%s: not 100%% native mode: " - "will probe irqs later\n", d->name); - /* - * This allows offboard ide-pci cards the enable a BIOS, - * verify interrupt settings of split-mirror pci-config - * space, place chipset into init-mode, and/or preserve - * an interrupt if the card is not native ide support. - */ - ret = d->init_chipset ? d->init_chipset(dev, d->name) : 0; - if (ret < 0) - goto out; + printk(KERN_INFO "%s %s: not 100%% native mode: will " + "probe irqs later\n", d->name, pci_name(dev)); pciirq = ret; - } else if (tried_config) { - if (noisy) - printk(KERN_INFO "%s: will probe irqs later\n", d->name); - pciirq = 0; - } else if (!pciirq) { - if (noisy) - printk(KERN_WARNING "%s: bad irq (%d): will probe later\n", - d->name, pciirq); - pciirq = 0; - } else { - if (d->init_chipset) { - ret = d->init_chipset(dev, d->name); - if (ret < 0) - goto out; - } - if (noisy) - printk(KERN_INFO "%s: 100%% native mode on irq %d\n", - d->name, pciirq); + } else if (!pciirq && noisy) { + printk(KERN_WARNING "%s %s: bad irq (%d): will probe later\n", + d->name, pci_name(dev), pciirq); + } else if (noisy) { + printk(KERN_INFO "%s %s: 100%% native mode on irq %d\n", + d->name, pci_name(dev), pciirq); } ret = pciirq; @@ -539,32 +538,77 @@ out: return ret; } -int ide_setup_pci_device(struct pci_dev *dev, const struct ide_port_info *d) +int ide_pci_init_one(struct pci_dev *dev, const struct ide_port_info *d, + void *priv) { + struct ide_host *host; hw_regs_t hw[4], *hws[] = { NULL, NULL, NULL, NULL }; int ret; - ret = do_ide_setup_pci_device(dev, d, 1); + ret = ide_setup_pci_controller(dev, d, 1); + if (ret < 0) + goto out; - if (ret >= 0) { - /* FIXME: silent failure can happen */ - ide_pci_setup_ports(dev, d, ret, &hw[0], &hws[0]); + ide_pci_setup_ports(dev, d, 0, &hw[0], &hws[0]); - ret = ide_host_add(d, hws, NULL); + host = ide_host_alloc(d, hws); + if (host == NULL) { + ret = -ENOMEM; + goto out; } + host->dev[0] = &dev->dev; + + host->host_priv = priv; + + pci_set_drvdata(dev, host); + + ret = do_ide_setup_pci_device(dev, d, 1); + if (ret < 0) + goto out; + + /* fixup IRQ */ + hw[1].irq = hw[0].irq = ret; + + ret = ide_host_register(host, d, hws); + if (ret) + ide_host_free(host); +out: return ret; } -EXPORT_SYMBOL_GPL(ide_setup_pci_device); +EXPORT_SYMBOL_GPL(ide_pci_init_one); -int ide_setup_pci_devices(struct pci_dev *dev1, struct pci_dev *dev2, - const struct ide_port_info *d) +int ide_pci_init_two(struct pci_dev *dev1, struct pci_dev *dev2, + const struct ide_port_info *d, void *priv) { struct pci_dev *pdev[] = { dev1, dev2 }; + struct ide_host *host; int ret, i; hw_regs_t hw[4], *hws[] = { NULL, NULL, NULL, NULL }; for (i = 0; i < 2; i++) { + ret = ide_setup_pci_controller(pdev[i], d, !i); + if (ret < 0) + goto out; + + ide_pci_setup_ports(pdev[i], d, 0, &hw[i*2], &hws[i*2]); + } + + host = ide_host_alloc(d, hws); + if (host == NULL) { + ret = -ENOMEM; + goto out; + } + + host->dev[0] = &dev1->dev; + host->dev[1] = &dev2->dev; + + host->host_priv = priv; + + pci_set_drvdata(pdev[0], host); + pci_set_drvdata(pdev[1], host); + + for (i = 0; i < 2; i++) { ret = do_ide_setup_pci_device(pdev[i], d, !i); /* @@ -574,12 +618,44 @@ int ide_setup_pci_devices(struct pci_dev *dev1, struct pci_dev *dev2, if (ret < 0) goto out; - /* FIXME: silent failure can happen */ - ide_pci_setup_ports(pdev[i], d, ret, &hw[i*2], &hws[i*2]); + /* fixup IRQ */ + hw[i*2 + 1].irq = hw[i*2].irq = ret; } - ret = ide_host_add(d, hws, NULL); + ret = ide_host_register(host, d, hws); + if (ret) + ide_host_free(host); out: return ret; } -EXPORT_SYMBOL_GPL(ide_setup_pci_devices); +EXPORT_SYMBOL_GPL(ide_pci_init_two); + +void ide_pci_remove(struct pci_dev *dev) +{ + struct ide_host *host = pci_get_drvdata(dev); + struct pci_dev *dev2 = host->dev[1] ? to_pci_dev(host->dev[1]) : NULL; + int bars; + + if (host->host_flags & IDE_HFLAG_SINGLE) + bars = (1 << 2) - 1; + else + bars = (1 << 4) - 1; + + if ((host->host_flags & IDE_HFLAG_NO_DMA) == 0) { + if (host->host_flags & IDE_HFLAG_CS5520) + bars |= (1 << 2); + else + bars |= (1 << 4); + } + + ide_host_remove(host); + + if (dev2) + pci_release_selected_regions(dev2, bars); + pci_release_selected_regions(dev, bars); + + if (dev2) + pci_disable_device(dev2); + pci_disable_device(dev); +} +EXPORT_SYMBOL_GPL(ide_pci_remove); diff --git a/drivers/ieee1394/iso.c b/drivers/ieee1394/iso.c index 07ca35c..1cf6487 100644 --- a/drivers/ieee1394/iso.c +++ b/drivers/ieee1394/iso.c @@ -11,6 +11,7 @@ #include <linux/pci.h> #include <linux/sched.h> +#include <linux/mm.h> #include <linux/slab.h> #include "hosts.h" diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index ae11d5c..e980ff3 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -168,6 +168,12 @@ struct cma_work { struct rdma_cm_event event; }; +struct cma_ndev_work { + struct work_struct work; + struct rdma_id_private *id; + struct rdma_cm_event event; +}; + union cma_ip_addr { struct in6_addr ip6; struct { @@ -914,7 +920,10 @@ static int cma_ib_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event) struct rdma_cm_event event; int ret = 0; - if (cma_disable_callback(id_priv, CMA_CONNECT)) + if ((ib_event->event != IB_CM_TIMEWAIT_EXIT && + cma_disable_callback(id_priv, CMA_CONNECT)) || + (ib_event->event == IB_CM_TIMEWAIT_EXIT && + cma_disable_callback(id_priv, CMA_DISCONNECT))) return 0; memset(&event, 0, sizeof event); @@ -950,6 +959,8 @@ static int cma_ib_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event) event.event = RDMA_CM_EVENT_DISCONNECTED; break; case IB_CM_TIMEWAIT_EXIT: + event.event = RDMA_CM_EVENT_TIMEWAIT_EXIT; + break; case IB_CM_MRA_RECEIVED: /* ignore event */ goto out; @@ -1598,6 +1609,30 @@ out: kfree(work); } +static void cma_ndev_work_handler(struct work_struct *_work) +{ + struct cma_ndev_work *work = container_of(_work, struct cma_ndev_work, work); + struct rdma_id_private *id_priv = work->id; + int destroy = 0; + + mutex_lock(&id_priv->handler_mutex); + if (id_priv->state == CMA_DESTROYING || + id_priv->state == CMA_DEVICE_REMOVAL) + goto out; + + if (id_priv->id.event_handler(&id_priv->id, &work->event)) { + cma_exch(id_priv, CMA_DESTROYING); + destroy = 1; + } + +out: + mutex_unlock(&id_priv->handler_mutex); + cma_deref_id(id_priv); + if (destroy) + rdma_destroy_id(&id_priv->id); + kfree(work); +} + static int cma_resolve_ib_route(struct rdma_id_private *id_priv, int timeout_ms) { struct rdma_route *route = &id_priv->id.route; @@ -2723,6 +2758,65 @@ void rdma_leave_multicast(struct rdma_cm_id *id, struct sockaddr *addr) } EXPORT_SYMBOL(rdma_leave_multicast); +static int cma_netdev_change(struct net_device *ndev, struct rdma_id_private *id_priv) +{ + struct rdma_dev_addr *dev_addr; + struct cma_ndev_work *work; + + dev_addr = &id_priv->id.route.addr.dev_addr; + + if ((dev_addr->src_dev == ndev) && + memcmp(dev_addr->src_dev_addr, ndev->dev_addr, ndev->addr_len)) { + printk(KERN_INFO "RDMA CM addr change for ndev %s used by id %p\n", + ndev->name, &id_priv->id); + work = kzalloc(sizeof *work, GFP_KERNEL); + if (!work) + return -ENOMEM; + + INIT_WORK(&work->work, cma_ndev_work_handler); + work->id = id_priv; + work->event.event = RDMA_CM_EVENT_ADDR_CHANGE; + atomic_inc(&id_priv->refcount); + queue_work(cma_wq, &work->work); + } + + return 0; +} + +static int cma_netdev_callback(struct notifier_block *self, unsigned long event, + void *ctx) +{ + struct net_device *ndev = (struct net_device *)ctx; + struct cma_device *cma_dev; + struct rdma_id_private *id_priv; + int ret = NOTIFY_DONE; + + if (dev_net(ndev) != &init_net) + return NOTIFY_DONE; + + if (event != NETDEV_BONDING_FAILOVER) + return NOTIFY_DONE; + + if (!(ndev->flags & IFF_MASTER) || !(ndev->priv_flags & IFF_BONDING)) + return NOTIFY_DONE; + + mutex_lock(&lock); + list_for_each_entry(cma_dev, &dev_list, list) + list_for_each_entry(id_priv, &cma_dev->id_list, list) { + ret = cma_netdev_change(ndev, id_priv); + if (ret) + goto out; + } + +out: + mutex_unlock(&lock); + return ret; +} + +static struct notifier_block cma_nb = { + .notifier_call = cma_netdev_callback +}; + static void cma_add_one(struct ib_device *device) { struct cma_device *cma_dev; @@ -2831,6 +2925,7 @@ static int cma_init(void) ib_sa_register_client(&sa_client); rdma_addr_register_client(&addr_client); + register_netdevice_notifier(&cma_nb); ret = ib_register_client(&cma_client); if (ret) @@ -2838,6 +2933,7 @@ static int cma_init(void) return 0; err: + unregister_netdevice_notifier(&cma_nb); rdma_addr_unregister_client(&addr_client); ib_sa_unregister_client(&sa_client); destroy_workqueue(cma_wq); @@ -2847,6 +2943,7 @@ err: static void cma_cleanup(void) { ib_unregister_client(&cma_client); + unregister_netdevice_notifier(&cma_nb); rdma_addr_unregister_client(&addr_client); ib_sa_unregister_client(&sa_client); destroy_workqueue(cma_wq); diff --git a/drivers/infiniband/core/iwcm.c b/drivers/infiniband/core/iwcm.c index 81c9195..8f9509e 100644 --- a/drivers/infiniband/core/iwcm.c +++ b/drivers/infiniband/core/iwcm.c @@ -942,8 +942,7 @@ static int iwcm_init_qp_init_attr(struct iwcm_id_private *cm_id_priv, case IW_CM_STATE_CONN_RECV: case IW_CM_STATE_ESTABLISHED: *qp_attr_mask = IB_QP_STATE | IB_QP_ACCESS_FLAGS; - qp_attr->qp_access_flags = IB_ACCESS_LOCAL_WRITE | - IB_ACCESS_REMOTE_WRITE| + qp_attr->qp_access_flags = IB_ACCESS_REMOTE_WRITE| IB_ACCESS_REMOTE_READ; ret = 0; break; diff --git a/drivers/infiniband/core/sa_query.c b/drivers/infiniband/core/sa_query.c index 1341de7..7863a50 100644 --- a/drivers/infiniband/core/sa_query.c +++ b/drivers/infiniband/core/sa_query.c @@ -1064,7 +1064,8 @@ static void ib_sa_remove_one(struct ib_device *device) for (i = 0; i <= sa_dev->end_port - sa_dev->start_port; ++i) { ib_unregister_mad_agent(sa_dev->port[i].agent); - kref_put(&sa_dev->port[i].sm_ah->ref, free_sm_ah); + if (sa_dev->port[i].sm_ah) + kref_put(&sa_dev->port[i].sm_ah->ref, free_sm_ah); } kfree(sa_dev); diff --git a/drivers/infiniband/core/ucm.c b/drivers/infiniband/core/ucm.c index 9494005..e603736 100644 --- a/drivers/infiniband/core/ucm.c +++ b/drivers/infiniband/core/ucm.c @@ -43,7 +43,6 @@ #include <linux/cdev.h> #include <linux/idr.h> #include <linux/mutex.h> -#include <linux/smp_lock.h> #include <asm/uaccess.h> @@ -1154,11 +1153,18 @@ static unsigned int ib_ucm_poll(struct file *filp, return mask; } +/* + * ib_ucm_open() does not need the BKL: + * + * - no global state is referred to; + * - there is no ioctl method to race against; + * - no further module initialization is required for open to work + * after the device is registered. + */ static int ib_ucm_open(struct inode *inode, struct file *filp) { struct ib_ucm_file *file; - cycle_kernel_lock(); file = kmalloc(sizeof(*file), GFP_KERNEL); if (!file) return -ENOMEM; diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c index 195f973..b41dd26 100644 --- a/drivers/infiniband/core/ucma.c +++ b/drivers/infiniband/core/ucma.c @@ -38,7 +38,6 @@ #include <linux/in.h> #include <linux/in6.h> #include <linux/miscdevice.h> -#include <linux/smp_lock.h> #include <rdma/rdma_user_cm.h> #include <rdma/ib_marshall.h> @@ -1149,6 +1148,14 @@ static unsigned int ucma_poll(struct file *filp, struct poll_table_struct *wait) return mask; } +/* + * ucma_open() does not need the BKL: + * + * - no global state is referred to; + * - there is no ioctl method to race against; + * - no further module initialization is required for open to work + * after the device is registered. + */ static int ucma_open(struct inode *inode, struct file *filp) { struct ucma_file *file; @@ -1157,7 +1164,6 @@ static int ucma_open(struct inode *inode, struct file *filp) if (!file) return -ENOMEM; - lock_kernel(); INIT_LIST_HEAD(&file->event_list); INIT_LIST_HEAD(&file->ctx_list); init_waitqueue_head(&file->poll_wait); @@ -1165,7 +1171,6 @@ static int ucma_open(struct inode *inode, struct file *filp) filp->private_data = file; file->filp = filp; - unlock_kernel(); return 0; } diff --git a/drivers/infiniband/hw/ehca/ehca_classes.h b/drivers/infiniband/hw/ehca/ehca_classes.h index 1e9e99a..0b0618e 100644 --- a/drivers/infiniband/hw/ehca/ehca_classes.h +++ b/drivers/infiniband/hw/ehca/ehca_classes.h @@ -194,6 +194,7 @@ struct ehca_qp { u32 packet_count; atomic_t nr_events; /* events seen */ wait_queue_head_t wait_completion; + int mig_armed; }; #define IS_SRQ(qp) (qp->ext_type == EQPT_SRQ) diff --git a/drivers/infiniband/hw/ehca/ehca_hca.c b/drivers/infiniband/hw/ehca/ehca_hca.c index bc3b37d..4628822 100644 --- a/drivers/infiniband/hw/ehca/ehca_hca.c +++ b/drivers/infiniband/hw/ehca/ehca_hca.c @@ -114,7 +114,9 @@ int ehca_query_device(struct ib_device *ibdev, struct ib_device_attr *props) } props->max_pkeys = 16; - props->local_ca_ack_delay = min_t(u8, rblock->local_ca_ack_delay, 255); + /* Some FW versions say 0 here; insert sensible value in that case */ + props->local_ca_ack_delay = rblock->local_ca_ack_delay ? + min_t(u8, rblock->local_ca_ack_delay, 255) : 12; props->max_raw_ipv6_qp = limit_uint(rblock->max_raw_ipv6_qp); props->max_raw_ethy_qp = limit_uint(rblock->max_raw_ethy_qp); props->max_mcast_grp = limit_uint(rblock->max_mcast_grp); diff --git a/drivers/infiniband/hw/ehca/ehca_irq.c b/drivers/infiniband/hw/ehca/ehca_irq.c index 7a64aa9..cb55be04 100644 --- a/drivers/infiniband/hw/ehca/ehca_irq.c +++ b/drivers/infiniband/hw/ehca/ehca_irq.c @@ -178,6 +178,10 @@ static void dispatch_qp_event(struct ehca_shca *shca, struct ehca_qp *qp, { struct ib_event event; + /* PATH_MIG without the QP ever having been armed is false alarm */ + if (event_type == IB_EVENT_PATH_MIG && !qp->mig_armed) + return; + event.device = &shca->ib_device; event.event = event_type; diff --git a/drivers/infiniband/hw/ehca/ehca_qp.c b/drivers/infiniband/hw/ehca/ehca_qp.c index 3f59587..ea13efd 100644 --- a/drivers/infiniband/hw/ehca/ehca_qp.c +++ b/drivers/infiniband/hw/ehca/ehca_qp.c @@ -1460,6 +1460,8 @@ static int internal_modify_qp(struct ib_qp *ibqp, goto modify_qp_exit2; } mqpcb->path_migration_state = attr->path_mig_state + 1; + if (attr->path_mig_state == IB_MIG_REARM) + my_qp->mig_armed = 1; update_mask |= EHCA_BMASK_SET(MQPCB_MASK_PATH_MIGRATION_STATE, 1); } diff --git a/drivers/infiniband/hw/ehca/ipz_pt_fn.c b/drivers/infiniband/hw/ehca/ipz_pt_fn.c index 661f8db..c3a3284 100644 --- a/drivers/infiniband/hw/ehca/ipz_pt_fn.c +++ b/drivers/infiniband/hw/ehca/ipz_pt_fn.c @@ -163,6 +163,7 @@ static int alloc_small_queue_page(struct ipz_queue *queue, struct ehca_pd *pd) out: ehca_err(pd->ib_pd.device, "failed to allocate small queue page"); + mutex_unlock(&pd->lock); return 0; } diff --git a/drivers/infiniband/hw/ipath/ipath_sdma.c b/drivers/infiniband/hw/ipath/ipath_sdma.c index eaba032..284c9bc 100644 --- a/drivers/infiniband/hw/ipath/ipath_sdma.c +++ b/drivers/infiniband/hw/ipath/ipath_sdma.c @@ -698,7 +698,7 @@ retry: addr = dma_map_single(&dd->pcidev->dev, tx->txreq.map_addr, tx->map_len, DMA_TO_DEVICE); - if (dma_mapping_error(addr)) { + if (dma_mapping_error(&dd->pcidev->dev, addr)) { ret = -EIO; goto unlock; } diff --git a/drivers/infiniband/hw/ipath/ipath_user_sdma.c b/drivers/infiniband/hw/ipath/ipath_user_sdma.c index 86e0169..82d9a0b 100644 --- a/drivers/infiniband/hw/ipath/ipath_user_sdma.c +++ b/drivers/infiniband/hw/ipath/ipath_user_sdma.c @@ -206,7 +206,7 @@ static int ipath_user_sdma_coalesce(const struct ipath_devdata *dd, dma_addr = dma_map_page(&dd->pcidev->dev, page, 0, len, DMA_TO_DEVICE); - if (dma_mapping_error(dma_addr)) { + if (dma_mapping_error(&dd->pcidev->dev, dma_addr)) { ret = -ENOMEM; goto free_unmap; } @@ -301,7 +301,7 @@ static int ipath_user_sdma_pin_pages(const struct ipath_devdata *dd, pages[j], 0, flen, DMA_TO_DEVICE); unsigned long fofs = addr & ~PAGE_MASK; - if (dma_mapping_error(dma_addr)) { + if (dma_mapping_error(&dd->pcidev->dev, dma_addr)) { ret = -ENOMEM; goto done; } @@ -508,7 +508,7 @@ static int ipath_user_sdma_queue_pkts(const struct ipath_devdata *dd, if (page) { dma_addr = dma_map_page(&dd->pcidev->dev, page, 0, len, DMA_TO_DEVICE); - if (dma_mapping_error(dma_addr)) { + if (dma_mapping_error(&dd->pcidev->dev, dma_addr)) { ret = -ENOMEM; goto free_pbc; } diff --git a/drivers/infiniband/hw/mlx4/cq.c b/drivers/infiniband/hw/mlx4/cq.c index 299f208..a146457 100644 --- a/drivers/infiniband/hw/mlx4/cq.c +++ b/drivers/infiniband/hw/mlx4/cq.c @@ -1,5 +1,6 @@ /* * Copyright (c) 2007 Cisco Systems, Inc. All rights reserved. + * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU @@ -637,6 +638,7 @@ repoll: case MLX4_OPCODE_SEND_IMM: wc->wc_flags |= IB_WC_WITH_IMM; case MLX4_OPCODE_SEND: + case MLX4_OPCODE_SEND_INVAL: wc->opcode = IB_WC_SEND; break; case MLX4_OPCODE_RDMA_READ: @@ -657,6 +659,12 @@ repoll: case MLX4_OPCODE_LSO: wc->opcode = IB_WC_LSO; break; + case MLX4_OPCODE_FMR: + wc->opcode = IB_WC_FAST_REG_MR; + break; + case MLX4_OPCODE_LOCAL_INVAL: + wc->opcode = IB_WC_LOCAL_INV; + break; } } else { wc->byte_len = be32_to_cpu(cqe->byte_cnt); @@ -667,6 +675,11 @@ repoll: wc->wc_flags = IB_WC_WITH_IMM; wc->ex.imm_data = cqe->immed_rss_invalid; break; + case MLX4_RECV_OPCODE_SEND_INVAL: + wc->opcode = IB_WC_RECV; + wc->wc_flags = IB_WC_WITH_INVALIDATE; + wc->ex.invalidate_rkey = be32_to_cpu(cqe->immed_rss_invalid); + break; case MLX4_RECV_OPCODE_SEND: wc->opcode = IB_WC_RECV; wc->wc_flags = 0; diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index bcf5064..a3c2851 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -1,5 +1,6 @@ /* * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved. + * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU @@ -104,6 +105,12 @@ static int mlx4_ib_query_device(struct ib_device *ibdev, props->device_cap_flags |= IB_DEVICE_UD_IP_CSUM; if (dev->dev->caps.max_gso_sz) props->device_cap_flags |= IB_DEVICE_UD_TSO; + if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_RESERVED_LKEY) + props->device_cap_flags |= IB_DEVICE_LOCAL_DMA_LKEY; + if ((dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_LOCAL_INV) && + (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_REMOTE_INV) && + (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_FAST_REG_WR)) + props->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS; props->vendor_id = be32_to_cpup((__be32 *) (out_mad->data + 36)) & 0xffffff; @@ -127,6 +134,7 @@ static int mlx4_ib_query_device(struct ib_device *ibdev, props->max_srq = dev->dev->caps.num_srqs - dev->dev->caps.reserved_srqs; props->max_srq_wr = dev->dev->caps.max_srq_wqes - 1; props->max_srq_sge = dev->dev->caps.max_srq_sge; + props->max_fast_reg_page_list_len = PAGE_SIZE / sizeof (u64); props->local_ca_ack_delay = dev->dev->caps.local_ca_ack_delay; props->atomic_cap = dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_ATOMIC ? IB_ATOMIC_HCA : IB_ATOMIC_NONE; @@ -565,6 +573,7 @@ static void *mlx4_ib_add(struct mlx4_dev *dev) strlcpy(ibdev->ib_dev.name, "mlx4_%d", IB_DEVICE_NAME_MAX); ibdev->ib_dev.owner = THIS_MODULE; ibdev->ib_dev.node_type = RDMA_NODE_IB_CA; + ibdev->ib_dev.local_dma_lkey = dev->caps.reserved_lkey; ibdev->ib_dev.phys_port_cnt = dev->caps.num_ports; ibdev->ib_dev.num_comp_vectors = 1; ibdev->ib_dev.dma_device = &dev->pdev->dev; @@ -627,6 +636,9 @@ static void *mlx4_ib_add(struct mlx4_dev *dev) ibdev->ib_dev.get_dma_mr = mlx4_ib_get_dma_mr; ibdev->ib_dev.reg_user_mr = mlx4_ib_reg_user_mr; ibdev->ib_dev.dereg_mr = mlx4_ib_dereg_mr; + ibdev->ib_dev.alloc_fast_reg_mr = mlx4_ib_alloc_fast_reg_mr; + ibdev->ib_dev.alloc_fast_reg_page_list = mlx4_ib_alloc_fast_reg_page_list; + ibdev->ib_dev.free_fast_reg_page_list = mlx4_ib_free_fast_reg_page_list; ibdev->ib_dev.attach_mcast = mlx4_ib_mcg_attach; ibdev->ib_dev.detach_mcast = mlx4_ib_mcg_detach; ibdev->ib_dev.process_mad = mlx4_ib_process_mad; diff --git a/drivers/infiniband/hw/mlx4/mlx4_ib.h b/drivers/infiniband/hw/mlx4/mlx4_ib.h index c4cf5b6..6e2b0dc 100644 --- a/drivers/infiniband/hw/mlx4/mlx4_ib.h +++ b/drivers/infiniband/hw/mlx4/mlx4_ib.h @@ -1,5 +1,6 @@ /* * Copyright (c) 2006, 2007 Cisco Systems. All rights reserved. + * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU @@ -83,6 +84,11 @@ struct mlx4_ib_mr { struct ib_umem *umem; }; +struct mlx4_ib_fast_reg_page_list { + struct ib_fast_reg_page_list ibfrpl; + dma_addr_t map; +}; + struct mlx4_ib_fmr { struct ib_fmr ibfmr; struct mlx4_fmr mfmr; @@ -199,6 +205,11 @@ static inline struct mlx4_ib_mr *to_mmr(struct ib_mr *ibmr) return container_of(ibmr, struct mlx4_ib_mr, ibmr); } +static inline struct mlx4_ib_fast_reg_page_list *to_mfrpl(struct ib_fast_reg_page_list *ibfrpl) +{ + return container_of(ibfrpl, struct mlx4_ib_fast_reg_page_list, ibfrpl); +} + static inline struct mlx4_ib_fmr *to_mfmr(struct ib_fmr *ibfmr) { return container_of(ibfmr, struct mlx4_ib_fmr, ibfmr); @@ -239,6 +250,11 @@ struct ib_mr *mlx4_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, u64 virt_addr, int access_flags, struct ib_udata *udata); int mlx4_ib_dereg_mr(struct ib_mr *mr); +struct ib_mr *mlx4_ib_alloc_fast_reg_mr(struct ib_pd *pd, + int max_page_list_len); +struct ib_fast_reg_page_list *mlx4_ib_alloc_fast_reg_page_list(struct ib_device *ibdev, + int page_list_len); +void mlx4_ib_free_fast_reg_page_list(struct ib_fast_reg_page_list *page_list); int mlx4_ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period); int mlx4_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata); diff --git a/drivers/infiniband/hw/mlx4/mr.c b/drivers/infiniband/hw/mlx4/mr.c index 68e9248..a4cdb46 100644 --- a/drivers/infiniband/hw/mlx4/mr.c +++ b/drivers/infiniband/hw/mlx4/mr.c @@ -1,5 +1,6 @@ /* * Copyright (c) 2007 Cisco Systems, Inc. All rights reserved. + * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU @@ -183,6 +184,76 @@ int mlx4_ib_dereg_mr(struct ib_mr *ibmr) return 0; } +struct ib_mr *mlx4_ib_alloc_fast_reg_mr(struct ib_pd *pd, + int max_page_list_len) +{ + struct mlx4_ib_dev *dev = to_mdev(pd->device); + struct mlx4_ib_mr *mr; + int err; + + mr = kmalloc(sizeof *mr, GFP_KERNEL); + if (!mr) + return ERR_PTR(-ENOMEM); + + err = mlx4_mr_alloc(dev->dev, to_mpd(pd)->pdn, 0, 0, 0, + max_page_list_len, 0, &mr->mmr); + if (err) + goto err_free; + + err = mlx4_mr_enable(dev->dev, &mr->mmr); + if (err) + goto err_mr; + + return &mr->ibmr; + +err_mr: + mlx4_mr_free(dev->dev, &mr->mmr); + +err_free: + kfree(mr); + return ERR_PTR(err); +} + +struct ib_fast_reg_page_list *mlx4_ib_alloc_fast_reg_page_list(struct ib_device *ibdev, + int page_list_len) +{ + struct mlx4_ib_dev *dev = to_mdev(ibdev); + struct mlx4_ib_fast_reg_page_list *mfrpl; + int size = page_list_len * sizeof (u64); + + if (size > PAGE_SIZE) + return ERR_PTR(-EINVAL); + + mfrpl = kmalloc(sizeof *mfrpl, GFP_KERNEL); + if (!mfrpl) + return ERR_PTR(-ENOMEM); + + mfrpl->ibfrpl.page_list = dma_alloc_coherent(&dev->dev->pdev->dev, + size, &mfrpl->map, + GFP_KERNEL); + if (!mfrpl->ibfrpl.page_list) + goto err_free; + + WARN_ON(mfrpl->map & 0x3f); + + return &mfrpl->ibfrpl; + +err_free: + kfree(mfrpl); + return ERR_PTR(-ENOMEM); +} + +void mlx4_ib_free_fast_reg_page_list(struct ib_fast_reg_page_list *page_list) +{ + struct mlx4_ib_dev *dev = to_mdev(page_list->device); + struct mlx4_ib_fast_reg_page_list *mfrpl = to_mfrpl(page_list); + int size = page_list->max_page_list_len * sizeof (u64); + + dma_free_coherent(&dev->dev->pdev->dev, size, page_list->page_list, + mfrpl->map); + kfree(mfrpl); +} + struct ib_fmr *mlx4_ib_fmr_alloc(struct ib_pd *pd, int acc, struct ib_fmr_attr *fmr_attr) { diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c index 89eb6cb..f7bc7dd 100644 --- a/drivers/infiniband/hw/mlx4/qp.c +++ b/drivers/infiniband/hw/mlx4/qp.c @@ -1,5 +1,6 @@ /* * Copyright (c) 2007 Cisco Systems, Inc. All rights reserved. + * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU @@ -78,6 +79,9 @@ static const __be32 mlx4_ib_opcode[] = { [IB_WR_RDMA_READ] = __constant_cpu_to_be32(MLX4_OPCODE_RDMA_READ), [IB_WR_ATOMIC_CMP_AND_SWP] = __constant_cpu_to_be32(MLX4_OPCODE_ATOMIC_CS), [IB_WR_ATOMIC_FETCH_AND_ADD] = __constant_cpu_to_be32(MLX4_OPCODE_ATOMIC_FA), + [IB_WR_SEND_WITH_INV] = __constant_cpu_to_be32(MLX4_OPCODE_SEND_INVAL), + [IB_WR_LOCAL_INV] = __constant_cpu_to_be32(MLX4_OPCODE_LOCAL_INVAL), + [IB_WR_FAST_REG_MR] = __constant_cpu_to_be32(MLX4_OPCODE_FMR), }; static struct mlx4_ib_sqp *to_msqp(struct mlx4_ib_qp *mqp) @@ -976,6 +980,10 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp, context->pd = cpu_to_be32(to_mpd(ibqp->pd)->pdn); context->params1 = cpu_to_be32(MLX4_IB_ACK_REQ_FREQ << 28); + /* Set "fast registration enabled" for all kernel QPs */ + if (!qp->ibqp.uobject) + context->params1 |= cpu_to_be32(1 << 11); + if (attr_mask & IB_QP_RNR_RETRY) { context->params1 |= cpu_to_be32(attr->rnr_retry << 13); optpar |= MLX4_QP_OPTPAR_RNR_RETRY; @@ -1322,6 +1330,38 @@ static int mlx4_wq_overflow(struct mlx4_ib_wq *wq, int nreq, struct ib_cq *ib_cq return cur + nreq >= wq->max_post; } +static __be32 convert_access(int acc) +{ + return (acc & IB_ACCESS_REMOTE_ATOMIC ? cpu_to_be32(MLX4_WQE_FMR_PERM_ATOMIC) : 0) | + (acc & IB_ACCESS_REMOTE_WRITE ? cpu_to_be32(MLX4_WQE_FMR_PERM_REMOTE_WRITE) : 0) | + (acc & IB_ACCESS_REMOTE_READ ? cpu_to_be32(MLX4_WQE_FMR_PERM_REMOTE_READ) : 0) | + (acc & IB_ACCESS_LOCAL_WRITE ? cpu_to_be32(MLX4_WQE_FMR_PERM_LOCAL_WRITE) : 0) | + cpu_to_be32(MLX4_WQE_FMR_PERM_LOCAL_READ); +} + +static void set_fmr_seg(struct mlx4_wqe_fmr_seg *fseg, struct ib_send_wr *wr) +{ + struct mlx4_ib_fast_reg_page_list *mfrpl = to_mfrpl(wr->wr.fast_reg.page_list); + + fseg->flags = convert_access(wr->wr.fast_reg.access_flags); + fseg->mem_key = cpu_to_be32(wr->wr.fast_reg.rkey); + fseg->buf_list = cpu_to_be64(mfrpl->map); + fseg->start_addr = cpu_to_be64(wr->wr.fast_reg.iova_start); + fseg->reg_len = cpu_to_be64(wr->wr.fast_reg.length); + fseg->offset = 0; /* XXX -- is this just for ZBVA? */ + fseg->page_size = cpu_to_be32(wr->wr.fast_reg.page_shift); + fseg->reserved[0] = 0; + fseg->reserved[1] = 0; +} + +static void set_local_inv_seg(struct mlx4_wqe_local_inval_seg *iseg, u32 rkey) +{ + iseg->flags = 0; + iseg->mem_key = cpu_to_be32(rkey); + iseg->guest_id = 0; + iseg->pa = 0; +} + static __always_inline void set_raddr_seg(struct mlx4_wqe_raddr_seg *rseg, u64 remote_addr, u32 rkey) { @@ -1395,7 +1435,7 @@ static void __set_data_seg(struct mlx4_wqe_data_seg *dseg, struct ib_sge *sg) dseg->addr = cpu_to_be64(sg->addr); } -static int build_lso_seg(struct mlx4_lso_seg *wqe, struct ib_send_wr *wr, +static int build_lso_seg(struct mlx4_wqe_lso_seg *wqe, struct ib_send_wr *wr, struct mlx4_ib_qp *qp, unsigned *lso_seg_len) { unsigned halign = ALIGN(sizeof *wqe + wr->wr.ud.hlen, 16); @@ -1423,6 +1463,21 @@ static int build_lso_seg(struct mlx4_lso_seg *wqe, struct ib_send_wr *wr, return 0; } +static __be32 send_ieth(struct ib_send_wr *wr) +{ + switch (wr->opcode) { + case IB_WR_SEND_WITH_IMM: + case IB_WR_RDMA_WRITE_WITH_IMM: + return wr->ex.imm_data; + + case IB_WR_SEND_WITH_INV: + return cpu_to_be32(wr->ex.invalidate_rkey); + + default: + return 0; + } +} + int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, struct ib_send_wr **bad_wr) { @@ -1469,11 +1524,7 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, MLX4_WQE_CTRL_TCP_UDP_CSUM) : 0) | qp->sq_signal_bits; - if (wr->opcode == IB_WR_SEND_WITH_IMM || - wr->opcode == IB_WR_RDMA_WRITE_WITH_IMM) - ctrl->imm = wr->ex.imm_data; - else - ctrl->imm = 0; + ctrl->imm = send_ieth(wr); wqe += sizeof *ctrl; size = sizeof *ctrl / 16; @@ -1505,6 +1556,18 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, size += sizeof (struct mlx4_wqe_raddr_seg) / 16; break; + case IB_WR_LOCAL_INV: + set_local_inv_seg(wqe, wr->ex.invalidate_rkey); + wqe += sizeof (struct mlx4_wqe_local_inval_seg); + size += sizeof (struct mlx4_wqe_local_inval_seg) / 16; + break; + + case IB_WR_FAST_REG_MR: + set_fmr_seg(wqe, wr); + wqe += sizeof (struct mlx4_wqe_fmr_seg); + size += sizeof (struct mlx4_wqe_fmr_seg) / 16; + break; + default: /* No extra segments required for sends */ break; diff --git a/drivers/infiniband/hw/mlx4/srq.c b/drivers/infiniband/hw/mlx4/srq.c index 12d6bc6..d425652 100644 --- a/drivers/infiniband/hw/mlx4/srq.c +++ b/drivers/infiniband/hw/mlx4/srq.c @@ -1,5 +1,6 @@ /* * Copyright (c) 2007 Cisco Systems, Inc. All rights reserved. + * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU diff --git a/drivers/infiniband/hw/mlx4/user.h b/drivers/infiniband/hw/mlx4/user.h index e2d11be..13beede 100644 --- a/drivers/infiniband/hw/mlx4/user.h +++ b/drivers/infiniband/hw/mlx4/user.h @@ -1,5 +1,6 @@ /* * Copyright (c) 2007 Cisco Systems, Inc. All rights reserved. + * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU diff --git a/drivers/infiniband/hw/mthca/mthca_dev.h b/drivers/infiniband/hw/mthca/mthca_dev.h index ee4d073..2525901 100644 --- a/drivers/infiniband/hw/mthca/mthca_dev.h +++ b/drivers/infiniband/hw/mthca/mthca_dev.h @@ -202,6 +202,7 @@ struct mthca_pd_table { struct mthca_buddy { unsigned long **bits; + int *num_free; int max_order; spinlock_t lock; }; diff --git a/drivers/infiniband/hw/mthca/mthca_eq.c b/drivers/infiniband/hw/mthca/mthca_eq.c index 4e36aa7..cc6858f 100644 --- a/drivers/infiniband/hw/mthca/mthca_eq.c +++ b/drivers/infiniband/hw/mthca/mthca_eq.c @@ -780,7 +780,7 @@ int mthca_map_eq_icm(struct mthca_dev *dev, u64 icm_virt) return -ENOMEM; dev->eq_table.icm_dma = pci_map_page(dev->pdev, dev->eq_table.icm_page, 0, PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); - if (pci_dma_mapping_error(dev->eq_table.icm_dma)) { + if (pci_dma_mapping_error(dev->pdev, dev->eq_table.icm_dma)) { __free_page(dev->eq_table.icm_page); return -ENOMEM; } diff --git a/drivers/infiniband/hw/mthca/mthca_mr.c b/drivers/infiniband/hw/mthca/mthca_mr.c index 8489b1e..882e6b7 100644 --- a/drivers/infiniband/hw/mthca/mthca_mr.c +++ b/drivers/infiniband/hw/mthca/mthca_mr.c @@ -89,23 +89,26 @@ static u32 mthca_buddy_alloc(struct mthca_buddy *buddy, int order) spin_lock(&buddy->lock); - for (o = order; o <= buddy->max_order; ++o) { - m = 1 << (buddy->max_order - o); - seg = find_first_bit(buddy->bits[o], m); - if (seg < m) - goto found; - } + for (o = order; o <= buddy->max_order; ++o) + if (buddy->num_free[o]) { + m = 1 << (buddy->max_order - o); + seg = find_first_bit(buddy->bits[o], m); + if (seg < m) + goto found; + } spin_unlock(&buddy->lock); return -1; found: clear_bit(seg, buddy->bits[o]); + --buddy->num_free[o]; while (o > order) { --o; seg <<= 1; set_bit(seg ^ 1, buddy->bits[o]); + ++buddy->num_free[o]; } spin_unlock(&buddy->lock); @@ -123,11 +126,13 @@ static void mthca_buddy_free(struct mthca_buddy *buddy, u32 seg, int order) while (test_bit(seg ^ 1, buddy->bits[order])) { clear_bit(seg ^ 1, buddy->bits[order]); + --buddy->num_free[order]; seg >>= 1; ++order; } set_bit(seg, buddy->bits[order]); + ++buddy->num_free[order]; spin_unlock(&buddy->lock); } @@ -141,7 +146,9 @@ static int mthca_buddy_init(struct mthca_buddy *buddy, int max_order) buddy->bits = kzalloc((buddy->max_order + 1) * sizeof (long *), GFP_KERNEL); - if (!buddy->bits) + buddy->num_free = kzalloc((buddy->max_order + 1) * sizeof (int *), + GFP_KERNEL); + if (!buddy->bits || !buddy->num_free) goto err_out; for (i = 0; i <= buddy->max_order; ++i) { @@ -154,6 +161,7 @@ static int mthca_buddy_init(struct mthca_buddy *buddy, int max_order) } set_bit(0, buddy->bits[buddy->max_order]); + buddy->num_free[buddy->max_order] = 1; return 0; @@ -161,9 +169,10 @@ err_out_free: for (i = 0; i <= buddy->max_order; ++i) kfree(buddy->bits[i]); +err_out: kfree(buddy->bits); + kfree(buddy->num_free); -err_out: return -ENOMEM; } @@ -175,6 +184,7 @@ static void mthca_buddy_cleanup(struct mthca_buddy *buddy) kfree(buddy->bits[i]); kfree(buddy->bits); + kfree(buddy->num_free); } static u32 mthca_alloc_mtt_range(struct mthca_dev *dev, int order, diff --git a/drivers/infiniband/hw/nes/nes.c b/drivers/infiniband/hw/nes/nes.c index d2884e7..b0cab64 100644 --- a/drivers/infiniband/hw/nes/nes.c +++ b/drivers/infiniband/hw/nes/nes.c @@ -276,6 +276,7 @@ static void nes_cqp_rem_ref_callback(struct nes_device *nesdev, struct nes_cqp_r } nes_free_resource(nesadapter, nesadapter->allocated_qps, nesqp->hwqp.qp_id); + nesadapter->qp_table[nesqp->hwqp.qp_id-NES_FIRST_QPN] = NULL; kfree(nesqp->allocated_buffer); } @@ -289,7 +290,6 @@ void nes_rem_ref(struct ib_qp *ibqp) struct nes_qp *nesqp; struct nes_vnic *nesvnic = to_nesvnic(ibqp->device); struct nes_device *nesdev = nesvnic->nesdev; - struct nes_adapter *nesadapter = nesdev->nesadapter; struct nes_hw_cqp_wqe *cqp_wqe; struct nes_cqp_request *cqp_request; u32 opcode; @@ -303,8 +303,6 @@ void nes_rem_ref(struct ib_qp *ibqp) } if (atomic_dec_and_test(&nesqp->refcount)) { - nesadapter->qp_table[nesqp->hwqp.qp_id-NES_FIRST_QPN] = NULL; - /* Destroy the QP */ cqp_request = nes_get_cqp_request(nesdev); if (cqp_request == NULL) { diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c index 6aa531d..9f0b964 100644 --- a/drivers/infiniband/hw/nes/nes_cm.c +++ b/drivers/infiniband/hw/nes/nes_cm.c @@ -74,36 +74,59 @@ atomic_t cm_nodes_destroyed; atomic_t cm_accel_dropped_pkts; atomic_t cm_resets_recvd; -static inline int mini_cm_accelerated(struct nes_cm_core *, struct nes_cm_node *); +static inline int mini_cm_accelerated(struct nes_cm_core *, + struct nes_cm_node *); static struct nes_cm_listener *mini_cm_listen(struct nes_cm_core *, - struct nes_vnic *, struct nes_cm_info *); -static int add_ref_cm_node(struct nes_cm_node *); -static int rem_ref_cm_node(struct nes_cm_core *, struct nes_cm_node *); + struct nes_vnic *, struct nes_cm_info *); static int mini_cm_del_listen(struct nes_cm_core *, struct nes_cm_listener *); -static struct sk_buff *form_cm_frame(struct sk_buff *, struct nes_cm_node *, - void *, u32, void *, u32, u8); -static struct sk_buff *get_free_pkt(struct nes_cm_node *cm_node); - static struct nes_cm_node *mini_cm_connect(struct nes_cm_core *, - struct nes_vnic *, - struct ietf_mpa_frame *, - struct nes_cm_info *); + struct nes_vnic *, u16, void *, struct nes_cm_info *); +static int mini_cm_close(struct nes_cm_core *, struct nes_cm_node *); static int mini_cm_accept(struct nes_cm_core *, struct ietf_mpa_frame *, - struct nes_cm_node *); + struct nes_cm_node *); static int mini_cm_reject(struct nes_cm_core *, struct ietf_mpa_frame *, - struct nes_cm_node *); -static int mini_cm_close(struct nes_cm_core *, struct nes_cm_node *); -static int mini_cm_recv_pkt(struct nes_cm_core *, struct nes_vnic *, - struct sk_buff *); + struct nes_cm_node *); +static void mini_cm_recv_pkt(struct nes_cm_core *, struct nes_vnic *, + struct sk_buff *); static int mini_cm_dealloc_core(struct nes_cm_core *); static int mini_cm_get(struct nes_cm_core *); static int mini_cm_set(struct nes_cm_core *, u32, u32); + +static struct sk_buff *form_cm_frame(struct sk_buff *, struct nes_cm_node *, + void *, u32, void *, u32, u8); +static struct sk_buff *get_free_pkt(struct nes_cm_node *cm_node); +static int add_ref_cm_node(struct nes_cm_node *); +static int rem_ref_cm_node(struct nes_cm_core *, struct nes_cm_node *); + static int nes_cm_disconn_true(struct nes_qp *); static int nes_cm_post_event(struct nes_cm_event *event); static int nes_disconnect(struct nes_qp *nesqp, int abrupt); static void nes_disconnect_worker(struct work_struct *work); -static int send_ack(struct nes_cm_node *cm_node); + +static int send_mpa_request(struct nes_cm_node *, struct sk_buff *); +static int send_syn(struct nes_cm_node *, u32, struct sk_buff *); +static int send_reset(struct nes_cm_node *, struct sk_buff *); +static int send_ack(struct nes_cm_node *cm_node, struct sk_buff *skb); static int send_fin(struct nes_cm_node *cm_node, struct sk_buff *skb); +static void process_packet(struct nes_cm_node *, struct sk_buff *, + struct nes_cm_core *); + +static void active_open_err(struct nes_cm_node *, struct sk_buff *, int); +static void passive_open_err(struct nes_cm_node *, struct sk_buff *, int); +static void cleanup_retrans_entry(struct nes_cm_node *); +static void handle_rcv_mpa(struct nes_cm_node *, struct sk_buff *, + enum nes_cm_event_type); +static void free_retrans_entry(struct nes_cm_node *cm_node); +static int handle_tcp_options(struct nes_cm_node *cm_node, struct tcphdr *tcph, + struct sk_buff *skb, int optionsize, int passive); + +/* CM event handler functions */ +static void cm_event_connected(struct nes_cm_event *); +static void cm_event_connect_error(struct nes_cm_event *); +static void cm_event_reset(struct nes_cm_event *); +static void cm_event_mpa_req(struct nes_cm_event *); + +static void print_core(struct nes_cm_core *core); /* External CM API Interface */ /* instance of function pointers for client API */ @@ -158,11 +181,11 @@ static struct nes_cm_event *create_event(struct nes_cm_node *cm_node, event->cm_info.loc_port = cm_node->loc_port; event->cm_info.cm_id = cm_node->cm_id; - nes_debug(NES_DBG_CM, "Created event=%p, type=%u, dst_addr=%08x[%x]," - " src_addr=%08x[%x]\n", - event, type, - event->cm_info.loc_addr, event->cm_info.loc_port, - event->cm_info.rem_addr, event->cm_info.rem_port); + nes_debug(NES_DBG_CM, "cm_node=%p Created event=%p, type=%u, " + "dst_addr=%08x[%x], src_addr=%08x[%x]\n", + cm_node, event, type, event->cm_info.loc_addr, + event->cm_info.loc_port, event->cm_info.rem_addr, + event->cm_info.rem_port); nes_cm_post_event(event); return event; @@ -172,14 +195,11 @@ static struct nes_cm_event *create_event(struct nes_cm_node *cm_node, /** * send_mpa_request */ -static int send_mpa_request(struct nes_cm_node *cm_node) +static int send_mpa_request(struct nes_cm_node *cm_node, struct sk_buff *skb) { - struct sk_buff *skb; int ret; - - skb = get_free_pkt(cm_node); if (!skb) { - nes_debug(NES_DBG_CM, "Failed to get a Free pkt\n"); + nes_debug(NES_DBG_CM, "skb set to NULL\n"); return -1; } @@ -188,9 +208,8 @@ static int send_mpa_request(struct nes_cm_node *cm_node) cm_node->mpa_frame_size, SET_ACK); ret = schedule_nes_timer(cm_node, skb, NES_TIMER_TYPE_SEND, 1, 0); - if (ret < 0) { + if (ret < 0) return ret; - } return 0; } @@ -229,46 +248,12 @@ static int parse_mpa(struct nes_cm_node *cm_node, u8 *buffer, u32 len) /** - * handle_exception_pkt - process an exception packet. - * We have been in a TSA state, and we have now received SW - * TCP/IP traffic should be a FIN request or IP pkt with options - */ -static int handle_exception_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb) -{ - int ret = 0; - struct tcphdr *tcph = tcp_hdr(skb); - - /* first check to see if this a FIN pkt */ - if (tcph->fin) { - /* we need to ACK the FIN request */ - send_ack(cm_node); - - /* check which side we are (client/server) and set next state accordingly */ - if (cm_node->tcp_cntxt.client) - cm_node->state = NES_CM_STATE_CLOSING; - else { - /* we are the server side */ - cm_node->state = NES_CM_STATE_CLOSE_WAIT; - /* since this is a self contained CM we don't wait for */ - /* an APP to close us, just send final FIN immediately */ - ret = send_fin(cm_node, NULL); - cm_node->state = NES_CM_STATE_LAST_ACK; - } - } else { - ret = -EINVAL; - } - - return ret; -} - - -/** * form_cm_frame - get a free packet and build empty frame Use * node info to build. */ -static struct sk_buff *form_cm_frame(struct sk_buff *skb, struct nes_cm_node *cm_node, - void *options, u32 optionsize, void *data, - u32 datasize, u8 flags) +static struct sk_buff *form_cm_frame(struct sk_buff *skb, + struct nes_cm_node *cm_node, void *options, u32 optionsize, + void *data, u32 datasize, u8 flags) { struct tcphdr *tcph; struct iphdr *iph; @@ -332,10 +317,12 @@ static struct sk_buff *form_cm_frame(struct sk_buff *skb, struct nes_cm_node *cm cm_node->tcp_cntxt.loc_seq_num++; tcph->syn = 1; } else - cm_node->tcp_cntxt.loc_seq_num += datasize; /* data (no headers) */ + cm_node->tcp_cntxt.loc_seq_num += datasize; - if (flags & SET_FIN) + if (flags & SET_FIN) { + cm_node->tcp_cntxt.loc_seq_num++; tcph->fin = 1; + } if (flags & SET_RST) tcph->rst = 1; @@ -389,7 +376,7 @@ int schedule_nes_timer(struct nes_cm_node *cm_node, struct sk_buff *skb, int close_when_complete) { unsigned long flags; - struct nes_cm_core *cm_core; + struct nes_cm_core *cm_core = cm_node->cm_core; struct nes_timer_entry *new_send; int ret = 0; u32 was_timer_set; @@ -411,7 +398,7 @@ int schedule_nes_timer(struct nes_cm_node *cm_node, struct sk_buff *skb, new_send->close_when_complete = close_when_complete; if (type == NES_TIMER_TYPE_CLOSE) { - new_send->timetosend += (HZ/2); /* TODO: decide on the correct value here */ + new_send->timetosend += (HZ/10); spin_lock_irqsave(&cm_node->recv_list_lock, flags); list_add_tail(&new_send->list, &cm_node->recv_list); spin_unlock_irqrestore(&cm_node->recv_list_lock, flags); @@ -420,36 +407,28 @@ int schedule_nes_timer(struct nes_cm_node *cm_node, struct sk_buff *skb, if (type == NES_TIMER_TYPE_SEND) { new_send->seq_num = ntohl(tcp_hdr(skb)->seq); atomic_inc(&new_send->skb->users); + spin_lock_irqsave(&cm_node->retrans_list_lock, flags); + cm_node->send_entry = new_send; + add_ref_cm_node(cm_node); + spin_unlock_irqrestore(&cm_node->retrans_list_lock, flags); + new_send->timetosend = jiffies + NES_RETRY_TIMEOUT; ret = nes_nic_cm_xmit(new_send->skb, cm_node->netdev); if (ret != NETDEV_TX_OK) { - nes_debug(NES_DBG_CM, "Error sending packet %p (jiffies = %lu)\n", - new_send, jiffies); + nes_debug(NES_DBG_CM, "Error sending packet %p " + "(jiffies = %lu)\n", new_send, jiffies); atomic_dec(&new_send->skb->users); new_send->timetosend = jiffies; } else { cm_packets_sent++; if (!send_retrans) { + cleanup_retrans_entry(cm_node); if (close_when_complete) - rem_ref_cm_node(cm_node->cm_core, cm_node); - dev_kfree_skb_any(new_send->skb); - kfree(new_send); + rem_ref_cm_node(cm_core, cm_node); return ret; } - new_send->timetosend = jiffies + NES_RETRY_TIMEOUT; } - spin_lock_irqsave(&cm_node->retrans_list_lock, flags); - list_add_tail(&new_send->list, &cm_node->retrans_list); - spin_unlock_irqrestore(&cm_node->retrans_list_lock, flags); - } - if (type == NES_TIMER_TYPE_RECV) { - new_send->seq_num = ntohl(tcp_hdr(skb)->seq); - new_send->timetosend = jiffies; - spin_lock_irqsave(&cm_node->recv_list_lock, flags); - list_add_tail(&new_send->list, &cm_node->recv_list); - spin_unlock_irqrestore(&cm_node->recv_list_lock, flags); } - cm_core = cm_node->cm_core; was_timer_set = timer_pending(&cm_core->tcp_timer); @@ -476,23 +455,27 @@ static void nes_cm_timer_tick(unsigned long pass) struct list_head *list_node, *list_node_temp; struct nes_cm_core *cm_core = g_cm_core; struct nes_qp *nesqp; - struct sk_buff *skb; u32 settimer = 0; int ret = NETDEV_TX_OK; - int node_done; + enum nes_cm_node_state last_state; spin_lock_irqsave(&cm_core->ht_lock, flags); - list_for_each_safe(list_node, list_core_temp, &cm_core->connected_nodes) { + list_for_each_safe(list_node, list_core_temp, + &cm_core->connected_nodes) { cm_node = container_of(list_node, struct nes_cm_node, list); add_ref_cm_node(cm_node); spin_unlock_irqrestore(&cm_core->ht_lock, flags); spin_lock_irqsave(&cm_node->recv_list_lock, flags); - list_for_each_safe(list_core, list_node_temp, &cm_node->recv_list) { - recv_entry = container_of(list_core, struct nes_timer_entry, list); - if ((time_after(recv_entry->timetosend, jiffies)) && - (recv_entry->type == NES_TIMER_TYPE_CLOSE)) { - if (nexttimeout > recv_entry->timetosend || !settimer) { + list_for_each_safe(list_core, list_node_temp, + &cm_node->recv_list) { + recv_entry = container_of(list_core, + struct nes_timer_entry, list); + if (!recv_entry) + break; + if (time_after(recv_entry->timetosend, jiffies)) { + if (nexttimeout > recv_entry->timetosend || + !settimer) { nexttimeout = recv_entry->timetosend; settimer = 1; } @@ -501,157 +484,143 @@ static void nes_cm_timer_tick(unsigned long pass) list_del(&recv_entry->list); cm_id = cm_node->cm_id; spin_unlock_irqrestore(&cm_node->recv_list_lock, flags); - if (recv_entry->type == NES_TIMER_TYPE_CLOSE) { - nesqp = (struct nes_qp *)recv_entry->skb; - spin_lock_irqsave(&nesqp->lock, qplockflags); - if (nesqp->cm_id) { - nes_debug(NES_DBG_CM, "QP%u: cm_id = %p, refcount = %d: " - "****** HIT A NES_TIMER_TYPE_CLOSE" - " with something to do!!! ******\n", - nesqp->hwqp.qp_id, cm_id, - atomic_read(&nesqp->refcount)); - nesqp->hw_tcp_state = NES_AEQE_TCP_STATE_CLOSED; - nesqp->last_aeq = NES_AEQE_AEID_RESET_SENT; - nesqp->ibqp_state = IB_QPS_ERR; - spin_unlock_irqrestore(&nesqp->lock, qplockflags); - nes_cm_disconn(nesqp); - } else { - spin_unlock_irqrestore(&nesqp->lock, qplockflags); - nes_debug(NES_DBG_CM, "QP%u: cm_id = %p, refcount = %d:" - " ****** HIT A NES_TIMER_TYPE_CLOSE" - " with nothing to do!!! ******\n", - nesqp->hwqp.qp_id, cm_id, - atomic_read(&nesqp->refcount)); - nes_rem_ref(&nesqp->ibqp); - } - if (cm_id) - cm_id->rem_ref(cm_id); + nesqp = (struct nes_qp *)recv_entry->skb; + spin_lock_irqsave(&nesqp->lock, qplockflags); + if (nesqp->cm_id) { + nes_debug(NES_DBG_CM, "QP%u: cm_id = %p, " + "refcount = %d: HIT A " + "NES_TIMER_TYPE_CLOSE with something " + "to do!!!\n", nesqp->hwqp.qp_id, cm_id, + atomic_read(&nesqp->refcount)); + nesqp->hw_tcp_state = NES_AEQE_TCP_STATE_CLOSED; + nesqp->last_aeq = NES_AEQE_AEID_RESET_SENT; + nesqp->ibqp_state = IB_QPS_ERR; + spin_unlock_irqrestore(&nesqp->lock, + qplockflags); + nes_cm_disconn(nesqp); + } else { + spin_unlock_irqrestore(&nesqp->lock, + qplockflags); + nes_debug(NES_DBG_CM, "QP%u: cm_id = %p, " + "refcount = %d: HIT A " + "NES_TIMER_TYPE_CLOSE with nothing " + "to do!!!\n", nesqp->hwqp.qp_id, cm_id, + atomic_read(&nesqp->refcount)); } + if (cm_id) + cm_id->rem_ref(cm_id); + kfree(recv_entry); spin_lock_irqsave(&cm_node->recv_list_lock, flags); } spin_unlock_irqrestore(&cm_node->recv_list_lock, flags); spin_lock_irqsave(&cm_node->retrans_list_lock, flags); - node_done = 0; - list_for_each_safe(list_core, list_node_temp, &cm_node->retrans_list) { - if (node_done) { - break; - } - send_entry = container_of(list_core, struct nes_timer_entry, list); + do { + send_entry = cm_node->send_entry; + if (!send_entry) + continue; if (time_after(send_entry->timetosend, jiffies)) { if (cm_node->state != NES_CM_STATE_TSA) { - if ((nexttimeout > send_entry->timetosend) || !settimer) { - nexttimeout = send_entry->timetosend; + if ((nexttimeout > + send_entry->timetosend) || + !settimer) { + nexttimeout = + send_entry->timetosend; settimer = 1; + continue; } - node_done = 1; - continue; } else { - list_del(&send_entry->list); - skb = send_entry->skb; - spin_unlock_irqrestore(&cm_node->retrans_list_lock, flags); - dev_kfree_skb_any(skb); - kfree(send_entry); - spin_lock_irqsave(&cm_node->retrans_list_lock, flags); + free_retrans_entry(cm_node); continue; } } - if (send_entry->type == NES_TIMER_NODE_CLEANUP) { - list_del(&send_entry->list); - spin_unlock_irqrestore(&cm_node->retrans_list_lock, flags); - kfree(send_entry); - spin_lock_irqsave(&cm_node->retrans_list_lock, flags); - continue; - } - if ((send_entry->seq_num < cm_node->tcp_cntxt.rem_ack_num) || - (cm_node->state == NES_CM_STATE_TSA) || - (cm_node->state == NES_CM_STATE_CLOSED)) { - skb = send_entry->skb; - list_del(&send_entry->list); - spin_unlock_irqrestore(&cm_node->retrans_list_lock, flags); - kfree(send_entry); - dev_kfree_skb_any(skb); - spin_lock_irqsave(&cm_node->retrans_list_lock, flags); + + if ((cm_node->state == NES_CM_STATE_TSA) || + (cm_node->state == NES_CM_STATE_CLOSED)) { + free_retrans_entry(cm_node); continue; } - if (!send_entry->retranscount || !send_entry->retrycount) { + if (!send_entry->retranscount || + !send_entry->retrycount) { cm_packets_dropped++; - skb = send_entry->skb; - list_del(&send_entry->list); - spin_unlock_irqrestore(&cm_node->retrans_list_lock, flags); - dev_kfree_skb_any(skb); - kfree(send_entry); - if (cm_node->state == NES_CM_STATE_SYN_RCVD) { - /* this node never even generated an indication up to the cm */ + last_state = cm_node->state; + cm_node->state = NES_CM_STATE_CLOSED; + free_retrans_entry(cm_node); + spin_unlock_irqrestore( + &cm_node->retrans_list_lock, flags); + if (last_state == NES_CM_STATE_SYN_RCVD) rem_ref_cm_node(cm_core, cm_node); - } else { - cm_node->state = NES_CM_STATE_CLOSED; - create_event(cm_node, NES_CM_EVENT_ABORTED); - } - spin_lock_irqsave(&cm_node->retrans_list_lock, flags); + else + create_event(cm_node, + NES_CM_EVENT_ABORTED); + spin_lock_irqsave(&cm_node->retrans_list_lock, + flags); continue; } - /* this seems like the correct place, but leave send entry unprotected */ - /* spin_unlock_irqrestore(&cm_node->retrans_list_lock, flags); */ atomic_inc(&send_entry->skb->users); cm_packets_retrans++; - nes_debug(NES_DBG_CM, "Retransmitting send_entry %p for node %p," - " jiffies = %lu, time to send = %lu, retranscount = %u, " - "send_entry->seq_num = 0x%08X, cm_node->tcp_cntxt.rem_ack_num = 0x%08X\n", - send_entry, cm_node, jiffies, send_entry->timetosend, send_entry->retranscount, - send_entry->seq_num, cm_node->tcp_cntxt.rem_ack_num); - - spin_unlock_irqrestore(&cm_node->retrans_list_lock, flags); + nes_debug(NES_DBG_CM, "Retransmitting send_entry %p " + "for node %p, jiffies = %lu, time to send = " + "%lu, retranscount = %u, send_entry->seq_num = " + "0x%08X, cm_node->tcp_cntxt.rem_ack_num = " + "0x%08X\n", send_entry, cm_node, jiffies, + send_entry->timetosend, + send_entry->retranscount, + send_entry->seq_num, + cm_node->tcp_cntxt.rem_ack_num); + + spin_unlock_irqrestore(&cm_node->retrans_list_lock, + flags); ret = nes_nic_cm_xmit(send_entry->skb, cm_node->netdev); + spin_lock_irqsave(&cm_node->retrans_list_lock, flags); if (ret != NETDEV_TX_OK) { + nes_debug(NES_DBG_CM, "rexmit failed for " + "node=%p\n", cm_node); cm_packets_bounced++; atomic_dec(&send_entry->skb->users); send_entry->retrycount--; nexttimeout = jiffies + NES_SHORT_TIME; settimer = 1; - node_done = 1; - spin_lock_irqsave(&cm_node->retrans_list_lock, flags); continue; } else { cm_packets_sent++; } - spin_lock_irqsave(&cm_node->retrans_list_lock, flags); - list_del(&send_entry->list); - nes_debug(NES_DBG_CM, "Packet Sent: retrans count = %u, retry count = %u.\n", - send_entry->retranscount, send_entry->retrycount); + nes_debug(NES_DBG_CM, "Packet Sent: retrans count = " + "%u, retry count = %u.\n", + send_entry->retranscount, + send_entry->retrycount); if (send_entry->send_retrans) { send_entry->retranscount--; - send_entry->timetosend = jiffies + NES_RETRY_TIMEOUT; - if (nexttimeout > send_entry->timetosend || !settimer) { + send_entry->timetosend = jiffies + + NES_RETRY_TIMEOUT; + if (nexttimeout > send_entry->timetosend || + !settimer) { nexttimeout = send_entry->timetosend; settimer = 1; } - list_add(&send_entry->list, &cm_node->retrans_list); - continue; } else { int close_when_complete; - skb = send_entry->skb; - close_when_complete = send_entry->close_when_complete; - spin_unlock_irqrestore(&cm_node->retrans_list_lock, flags); - if (close_when_complete) { - BUG_ON(atomic_read(&cm_node->ref_count) == 1); - rem_ref_cm_node(cm_core, cm_node); - } - dev_kfree_skb_any(skb); - kfree(send_entry); - spin_lock_irqsave(&cm_node->retrans_list_lock, flags); - continue; + close_when_complete = + send_entry->close_when_complete; + nes_debug(NES_DBG_CM, "cm_node=%p state=%d\n", + cm_node, cm_node->state); + free_retrans_entry(cm_node); + if (close_when_complete) + rem_ref_cm_node(cm_node->cm_core, + cm_node); } - } - spin_unlock_irqrestore(&cm_node->retrans_list_lock, flags); - - rem_ref_cm_node(cm_core, cm_node); + } while (0); + spin_unlock_irqrestore(&cm_node->retrans_list_lock, flags); + rem_ref_cm_node(cm_node->cm_core, cm_node); spin_lock_irqsave(&cm_core->ht_lock, flags); - if (ret != NETDEV_TX_OK) + if (ret != NETDEV_TX_OK) { + nes_debug(NES_DBG_CM, "rexmit failed for cm_node=%p\n", + cm_node); break; + } } spin_unlock_irqrestore(&cm_core->ht_lock, flags); @@ -667,14 +636,14 @@ static void nes_cm_timer_tick(unsigned long pass) /** * send_syn */ -static int send_syn(struct nes_cm_node *cm_node, u32 sendack) +static int send_syn(struct nes_cm_node *cm_node, u32 sendack, + struct sk_buff *skb) { int ret; int flags = SET_SYN; - struct sk_buff *skb; char optionsbuffer[sizeof(struct option_mss) + - sizeof(struct option_windowscale) + - sizeof(struct option_base) + 1]; + sizeof(struct option_windowscale) + sizeof(struct option_base) + + TCP_OPTIONS_PADDING]; int optionssize = 0; /* Sending MSS option */ @@ -695,8 +664,7 @@ static int send_syn(struct nes_cm_node *cm_node, u32 sendack) options->as_windowscale.shiftcount = cm_node->tcp_cntxt.rcv_wscale; optionssize += sizeof(struct option_windowscale); - if (sendack && !(NES_DRV_OPT_SUPRESS_OPTION_BC & nes_drv_opt) - ) { + if (sendack && !(NES_DRV_OPT_SUPRESS_OPTION_BC & nes_drv_opt)) { options = (union all_known_options *)&optionsbuffer[optionssize]; options->as_base.optionnum = OPTION_NUMBER_WRITE0; options->as_base.length = sizeof(struct option_base); @@ -714,7 +682,8 @@ static int send_syn(struct nes_cm_node *cm_node, u32 sendack) options->as_end = OPTION_NUMBER_END; optionssize += 1; - skb = get_free_pkt(cm_node); + if (!skb) + skb = get_free_pkt(cm_node); if (!skb) { nes_debug(NES_DBG_CM, "Failed to get a Free pkt\n"); return -1; @@ -733,18 +702,18 @@ static int send_syn(struct nes_cm_node *cm_node, u32 sendack) /** * send_reset */ -static int send_reset(struct nes_cm_node *cm_node) +static int send_reset(struct nes_cm_node *cm_node, struct sk_buff *skb) { int ret; - struct sk_buff *skb = get_free_pkt(cm_node); int flags = SET_RST | SET_ACK; + if (!skb) + skb = get_free_pkt(cm_node); if (!skb) { nes_debug(NES_DBG_CM, "Failed to get a Free pkt\n"); return -1; } - add_ref_cm_node(cm_node); form_cm_frame(skb, cm_node, NULL, 0, NULL, 0, flags); ret = schedule_nes_timer(cm_node, skb, NES_TIMER_TYPE_SEND, 0, 1); @@ -755,10 +724,12 @@ static int send_reset(struct nes_cm_node *cm_node) /** * send_ack */ -static int send_ack(struct nes_cm_node *cm_node) +static int send_ack(struct nes_cm_node *cm_node, struct sk_buff *skb) { int ret; - struct sk_buff *skb = get_free_pkt(cm_node); + + if (!skb) + skb = get_free_pkt(cm_node); if (!skb) { nes_debug(NES_DBG_CM, "Failed to get a Free pkt\n"); @@ -922,7 +893,8 @@ static int add_hte_node(struct nes_cm_core *cm_core, struct nes_cm_node *cm_node if (!cm_node || !cm_core) return -EINVAL; - nes_debug(NES_DBG_CM, "Adding Node to Active Connection HT\n"); + nes_debug(NES_DBG_CM, "Adding Node %p to Active Connection HT\n", + cm_node); /* first, make an index into our hash table */ hashkey = make_hashkey(cm_node->loc_port, cm_node->loc_addr, @@ -946,10 +918,35 @@ static int add_hte_node(struct nes_cm_core *cm_core, struct nes_cm_node *cm_node * mini_cm_dec_refcnt_listen */ static int mini_cm_dec_refcnt_listen(struct nes_cm_core *cm_core, - struct nes_cm_listener *listener, int free_hanging_nodes) + struct nes_cm_listener *listener, int free_hanging_nodes) { int ret = 1; unsigned long flags; + struct list_head *list_pos = NULL; + struct list_head *list_temp = NULL; + struct nes_cm_node *cm_node = NULL; + + nes_debug(NES_DBG_CM, "attempting listener= %p free_nodes= %d, " + "refcnt=%d\n", listener, free_hanging_nodes, + atomic_read(&listener->ref_count)); + /* free non-accelerated child nodes for this listener */ + if (free_hanging_nodes) { + spin_lock_irqsave(&cm_core->ht_lock, flags); + list_for_each_safe(list_pos, list_temp, + &g_cm_core->connected_nodes) { + cm_node = container_of(list_pos, struct nes_cm_node, + list); + if ((cm_node->listener == listener) && + (!cm_node->accelerated)) { + cleanup_retrans_entry(cm_node); + spin_unlock_irqrestore(&cm_core->ht_lock, + flags); + send_reset(cm_node, NULL); + spin_lock_irqsave(&cm_core->ht_lock, flags); + } + } + spin_unlock_irqrestore(&cm_core->ht_lock, flags); + } spin_lock_irqsave(&cm_core->listen_list_lock, flags); if (!atomic_dec_return(&listener->ref_count)) { list_del(&listener->list); @@ -1067,18 +1064,18 @@ static struct nes_cm_node *make_cm_node(struct nes_cm_core *cm_core, cm_node->loc_port = cm_info->loc_port; cm_node->rem_port = cm_info->rem_port; cm_node->send_write0 = send_first; - nes_debug(NES_DBG_CM, "Make node addresses : loc = " NIPQUAD_FMT ":%x, rem = " NIPQUAD_FMT ":%x\n", - HIPQUAD(cm_node->loc_addr), cm_node->loc_port, - HIPQUAD(cm_node->rem_addr), cm_node->rem_port); + nes_debug(NES_DBG_CM, "Make node addresses : loc = " NIPQUAD_FMT + ":%x, rem = " NIPQUAD_FMT ":%x\n", + HIPQUAD(cm_node->loc_addr), cm_node->loc_port, + HIPQUAD(cm_node->rem_addr), cm_node->rem_port); cm_node->listener = listener; cm_node->netdev = nesvnic->netdev; cm_node->cm_id = cm_info->cm_id; memcpy(cm_node->loc_mac, nesvnic->netdev->dev_addr, ETH_ALEN); - nes_debug(NES_DBG_CM, "listener=%p, cm_id=%p\n", - cm_node->listener, cm_node->cm_id); + nes_debug(NES_DBG_CM, "listener=%p, cm_id=%p\n", cm_node->listener, + cm_node->cm_id); - INIT_LIST_HEAD(&cm_node->retrans_list); spin_lock_init(&cm_node->retrans_list_lock); INIT_LIST_HEAD(&cm_node->recv_list); spin_lock_init(&cm_node->recv_list_lock); @@ -1142,10 +1139,9 @@ static int add_ref_cm_node(struct nes_cm_node *cm_node) * rem_ref_cm_node - destroy an instance of a cm node */ static int rem_ref_cm_node(struct nes_cm_core *cm_core, - struct nes_cm_node *cm_node) + struct nes_cm_node *cm_node) { unsigned long flags, qplockflags; - struct nes_timer_entry *send_entry; struct nes_timer_entry *recv_entry; struct iw_cm_id *cm_id; struct list_head *list_core, *list_node_temp; @@ -1169,48 +1165,33 @@ static int rem_ref_cm_node(struct nes_cm_core *cm_core, atomic_dec(&cm_node->listener->pend_accepts_cnt); BUG_ON(atomic_read(&cm_node->listener->pend_accepts_cnt) < 0); } - - spin_lock_irqsave(&cm_node->retrans_list_lock, flags); - list_for_each_safe(list_core, list_node_temp, &cm_node->retrans_list) { - send_entry = container_of(list_core, struct nes_timer_entry, list); - list_del(&send_entry->list); - spin_unlock_irqrestore(&cm_node->retrans_list_lock, flags); - dev_kfree_skb_any(send_entry->skb); - kfree(send_entry); - spin_lock_irqsave(&cm_node->retrans_list_lock, flags); - continue; - } - spin_unlock_irqrestore(&cm_node->retrans_list_lock, flags); - + BUG_ON(cm_node->send_entry); spin_lock_irqsave(&cm_node->recv_list_lock, flags); list_for_each_safe(list_core, list_node_temp, &cm_node->recv_list) { - recv_entry = container_of(list_core, struct nes_timer_entry, list); + recv_entry = container_of(list_core, struct nes_timer_entry, + list); list_del(&recv_entry->list); cm_id = cm_node->cm_id; spin_unlock_irqrestore(&cm_node->recv_list_lock, flags); - if (recv_entry->type == NES_TIMER_TYPE_CLOSE) { - nesqp = (struct nes_qp *)recv_entry->skb; - spin_lock_irqsave(&nesqp->lock, qplockflags); - if (nesqp->cm_id) { - nes_debug(NES_DBG_CM, "QP%u: cm_id = %p: ****** HIT A NES_TIMER_TYPE_CLOSE" - " with something to do!!! ******\n", - nesqp->hwqp.qp_id, cm_id); - nesqp->hw_tcp_state = NES_AEQE_TCP_STATE_CLOSED; - nesqp->last_aeq = NES_AEQE_AEID_RESET_SENT; - nesqp->ibqp_state = IB_QPS_ERR; - spin_unlock_irqrestore(&nesqp->lock, qplockflags); - nes_cm_disconn(nesqp); - } else { - spin_unlock_irqrestore(&nesqp->lock, qplockflags); - nes_debug(NES_DBG_CM, "QP%u: cm_id = %p: ****** HIT A NES_TIMER_TYPE_CLOSE" - " with nothing to do!!! ******\n", - nesqp->hwqp.qp_id, cm_id); - nes_rem_ref(&nesqp->ibqp); - } - cm_id->rem_ref(cm_id); - } else if (recv_entry->type == NES_TIMER_TYPE_RECV) { - dev_kfree_skb_any(recv_entry->skb); + nesqp = (struct nes_qp *)recv_entry->skb; + spin_lock_irqsave(&nesqp->lock, qplockflags); + if (nesqp->cm_id) { + nes_debug(NES_DBG_CM, "QP%u: cm_id = %p: HIT A " + "NES_TIMER_TYPE_CLOSE with something to do!\n", + nesqp->hwqp.qp_id, cm_id); + nesqp->hw_tcp_state = NES_AEQE_TCP_STATE_CLOSED; + nesqp->last_aeq = NES_AEQE_AEID_RESET_SENT; + nesqp->ibqp_state = IB_QPS_ERR; + spin_unlock_irqrestore(&nesqp->lock, qplockflags); + nes_cm_disconn(nesqp); + } else { + spin_unlock_irqrestore(&nesqp->lock, qplockflags); + nes_debug(NES_DBG_CM, "QP%u: cm_id = %p: HIT A " + "NES_TIMER_TYPE_CLOSE with nothing to do!\n", + nesqp->hwqp.qp_id, cm_id); } + cm_id->rem_ref(cm_id); + kfree(recv_entry); spin_lock_irqsave(&cm_node->recv_list_lock, flags); } @@ -1221,23 +1202,31 @@ static int rem_ref_cm_node(struct nes_cm_core *cm_core, } else { if (cm_node->apbvt_set && cm_node->nesvnic) { nes_manage_apbvt(cm_node->nesvnic, cm_node->loc_port, - PCI_FUNC(cm_node->nesvnic->nesdev->pcidev->devfn), - NES_MANAGE_APBVT_DEL); + PCI_FUNC( + cm_node->nesvnic->nesdev->pcidev->devfn), + NES_MANAGE_APBVT_DEL); } } - kfree(cm_node); atomic_dec(&cm_core->node_cnt); atomic_inc(&cm_nodes_destroyed); + nesqp = cm_node->nesqp; + if (nesqp) { + nesqp->cm_node = NULL; + nes_rem_ref(&nesqp->ibqp); + cm_node->nesqp = NULL; + } + cm_node->freed = 1; + kfree(cm_node); return 0; } - /** * process_options */ -static int process_options(struct nes_cm_node *cm_node, u8 *optionsloc, u32 optionsize, u32 syn_packet) +static int process_options(struct nes_cm_node *cm_node, u8 *optionsloc, + u32 optionsize, u32 syn_packet) { u32 tmp; u32 offset = 0; @@ -1247,35 +1236,37 @@ static int process_options(struct nes_cm_node *cm_node, u8 *optionsloc, u32 opti while (offset < optionsize) { all_options = (union all_known_options *)(optionsloc + offset); switch (all_options->as_base.optionnum) { - case OPTION_NUMBER_END: - offset = optionsize; - break; - case OPTION_NUMBER_NONE: - offset += 1; - continue; - case OPTION_NUMBER_MSS: - nes_debug(NES_DBG_CM, "%s: MSS Length: %d Offset: %d Size: %d\n", - __func__, - all_options->as_mss.length, offset, optionsize); - got_mss_option = 1; - if (all_options->as_mss.length != 4) { - return 1; - } else { - tmp = ntohs(all_options->as_mss.mss); - if (tmp > 0 && tmp < cm_node->tcp_cntxt.mss) - cm_node->tcp_cntxt.mss = tmp; - } - break; - case OPTION_NUMBER_WINDOW_SCALE: - cm_node->tcp_cntxt.snd_wscale = all_options->as_windowscale.shiftcount; - break; - case OPTION_NUMBER_WRITE0: - cm_node->send_write0 = 1; - break; - default: - nes_debug(NES_DBG_CM, "TCP Option not understood: %x\n", - all_options->as_base.optionnum); - break; + case OPTION_NUMBER_END: + offset = optionsize; + break; + case OPTION_NUMBER_NONE: + offset += 1; + continue; + case OPTION_NUMBER_MSS: + nes_debug(NES_DBG_CM, "%s: MSS Length: %d Offset: %d " + "Size: %d\n", __func__, + all_options->as_mss.length, offset, optionsize); + got_mss_option = 1; + if (all_options->as_mss.length != 4) { + return 1; + } else { + tmp = ntohs(all_options->as_mss.mss); + if (tmp > 0 && tmp < + cm_node->tcp_cntxt.mss) + cm_node->tcp_cntxt.mss = tmp; + } + break; + case OPTION_NUMBER_WINDOW_SCALE: + cm_node->tcp_cntxt.snd_wscale = + all_options->as_windowscale.shiftcount; + break; + case OPTION_NUMBER_WRITE0: + cm_node->send_write0 = 1; + break; + default: + nes_debug(NES_DBG_CM, "TCP Option not understood: %x\n", + all_options->as_base.optionnum); + break; } offset += all_options->as_base.length; } @@ -1284,300 +1275,491 @@ static int process_options(struct nes_cm_node *cm_node, u8 *optionsloc, u32 opti return 0; } +static void drop_packet(struct sk_buff *skb) +{ + atomic_inc(&cm_accel_dropped_pkts); + dev_kfree_skb_any(skb); +} -/** - * process_packet - */ -static int process_packet(struct nes_cm_node *cm_node, struct sk_buff *skb, - struct nes_cm_core *cm_core) +static void handle_fin_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb, + struct tcphdr *tcph) { - int optionsize; - int datasize; - int ret = 0; - struct tcphdr *tcph = tcp_hdr(skb); - u32 inc_sequence; - if (cm_node->state == NES_CM_STATE_SYN_SENT && tcph->syn) { - inc_sequence = ntohl(tcph->seq); - cm_node->tcp_cntxt.rcv_nxt = inc_sequence; + atomic_inc(&cm_resets_recvd); + nes_debug(NES_DBG_CM, "Received FIN, cm_node = %p, state = %u. " + "refcnt=%d\n", cm_node, cm_node->state, + atomic_read(&cm_node->ref_count)); + cm_node->tcp_cntxt.rcv_nxt++; + cleanup_retrans_entry(cm_node); + switch (cm_node->state) { + case NES_CM_STATE_SYN_RCVD: + case NES_CM_STATE_SYN_SENT: + case NES_CM_STATE_ESTABLISHED: + case NES_CM_STATE_MPAREQ_SENT: + cm_node->state = NES_CM_STATE_LAST_ACK; + send_fin(cm_node, skb); + break; + case NES_CM_STATE_FIN_WAIT1: + cm_node->state = NES_CM_STATE_CLOSING; + send_ack(cm_node, skb); + break; + case NES_CM_STATE_FIN_WAIT2: + cm_node->state = NES_CM_STATE_TIME_WAIT; + send_ack(cm_node, skb); + cm_node->state = NES_CM_STATE_CLOSED; + break; + case NES_CM_STATE_TSA: + default: + nes_debug(NES_DBG_CM, "Error Rcvd FIN for node-%p state = %d\n", + cm_node, cm_node->state); + drop_packet(skb); + break; } +} - if ((!tcph) || (cm_node->state == NES_CM_STATE_TSA)) { - BUG_ON(!tcph); - atomic_inc(&cm_accel_dropped_pkts); - return -1; - } - if (tcph->rst) { - atomic_inc(&cm_resets_recvd); - nes_debug(NES_DBG_CM, "Received Reset, cm_node = %p, state = %u. refcnt=%d\n", - cm_node, cm_node->state, atomic_read(&cm_node->ref_count)); - switch (cm_node->state) { - case NES_CM_STATE_LISTENING: - rem_ref_cm_node(cm_core, cm_node); - break; - case NES_CM_STATE_TSA: - case NES_CM_STATE_CLOSED: - break; - case NES_CM_STATE_SYN_RCVD: - nes_debug(NES_DBG_CM, "Received a reset for local 0x%08X:%04X," - " remote 0x%08X:%04X, node state = %u\n", - cm_node->loc_addr, cm_node->loc_port, - cm_node->rem_addr, cm_node->rem_port, - cm_node->state); - rem_ref_cm_node(cm_core, cm_node); - break; - case NES_CM_STATE_ONE_SIDE_ESTABLISHED: - case NES_CM_STATE_ESTABLISHED: - case NES_CM_STATE_MPAREQ_SENT: - default: - nes_debug(NES_DBG_CM, "Received a reset for local 0x%08X:%04X," - " remote 0x%08X:%04X, node state = %u refcnt=%d\n", - cm_node->loc_addr, cm_node->loc_port, - cm_node->rem_addr, cm_node->rem_port, - cm_node->state, atomic_read(&cm_node->ref_count)); - /* create event */ - cm_node->state = NES_CM_STATE_CLOSED; +static void handle_rst_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb, + struct tcphdr *tcph) +{ - create_event(cm_node, NES_CM_EVENT_ABORTED); - break; + int reset = 0; /* whether to send reset in case of err.. */ + atomic_inc(&cm_resets_recvd); + nes_debug(NES_DBG_CM, "Received Reset, cm_node = %p, state = %u." + " refcnt=%d\n", cm_node, cm_node->state, + atomic_read(&cm_node->ref_count)); + cleanup_retrans_entry(cm_node); + switch (cm_node->state) { + case NES_CM_STATE_SYN_SENT: + case NES_CM_STATE_MPAREQ_SENT: + nes_debug(NES_DBG_CM, "%s[%u] create abort for cm_node=%p " + "listener=%p state=%d\n", __func__, __LINE__, cm_node, + cm_node->listener, cm_node->state); + active_open_err(cm_node, skb, reset); + break; + /* For PASSIVE open states, remove the cm_node event */ + case NES_CM_STATE_ESTABLISHED: + case NES_CM_STATE_SYN_RCVD: + case NES_CM_STATE_LISTENING: + nes_debug(NES_DBG_CM, "Bad state %s[%u]\n", __func__, __LINE__); + passive_open_err(cm_node, skb, reset); + break; + case NES_CM_STATE_TSA: + default: + break; + } +} +static void handle_rcv_mpa(struct nes_cm_node *cm_node, struct sk_buff *skb, + enum nes_cm_event_type type) +{ + + int ret; + int datasize = skb->len; + u8 *dataloc = skb->data; + ret = parse_mpa(cm_node, dataloc, datasize); + if (ret < 0) { + nes_debug(NES_DBG_CM, "didn't like MPA Request\n"); + if (type == NES_CM_EVENT_CONNECTED) { + nes_debug(NES_DBG_CM, "%s[%u] create abort for " + "cm_node=%p listener=%p state=%d\n", __func__, + __LINE__, cm_node, cm_node->listener, + cm_node->state); + active_open_err(cm_node, skb, 1); + } else { + passive_open_err(cm_node, skb, 1); } - return -1; + } else { + cleanup_retrans_entry(cm_node); + dev_kfree_skb_any(skb); + if (type == NES_CM_EVENT_CONNECTED) + cm_node->state = NES_CM_STATE_TSA; + create_event(cm_node, type); + + } + return ; +} + +static void indicate_pkt_err(struct nes_cm_node *cm_node, struct sk_buff *skb) +{ + switch (cm_node->state) { + case NES_CM_STATE_SYN_SENT: + case NES_CM_STATE_MPAREQ_SENT: + nes_debug(NES_DBG_CM, "%s[%u] create abort for cm_node=%p " + "listener=%p state=%d\n", __func__, __LINE__, cm_node, + cm_node->listener, cm_node->state); + active_open_err(cm_node, skb, 1); + break; + case NES_CM_STATE_ESTABLISHED: + case NES_CM_STATE_SYN_RCVD: + passive_open_err(cm_node, skb, 1); + break; + case NES_CM_STATE_TSA: + default: + drop_packet(skb); } +} + +static int check_syn(struct nes_cm_node *cm_node, struct tcphdr *tcph, + struct sk_buff *skb) +{ + int err; + + err = ((ntohl(tcph->ack_seq) == cm_node->tcp_cntxt.loc_seq_num))? 0 : 1; + if (err) + active_open_err(cm_node, skb, 1); + + return err; +} + +static int check_seq(struct nes_cm_node *cm_node, struct tcphdr *tcph, + struct sk_buff *skb) +{ + int err = 0; + u32 seq; + u32 ack_seq; + u32 loc_seq_num = cm_node->tcp_cntxt.loc_seq_num; + u32 rcv_nxt = cm_node->tcp_cntxt.rcv_nxt; + u32 rcv_wnd; + seq = ntohl(tcph->seq); + ack_seq = ntohl(tcph->ack_seq); + rcv_wnd = cm_node->tcp_cntxt.rcv_wnd; + if (ack_seq != loc_seq_num) + err = 1; + else if ((seq + rcv_wnd) < rcv_nxt) + err = 1; + if (err) { + nes_debug(NES_DBG_CM, "%s[%u] create abort for cm_node=%p " + "listener=%p state=%d\n", __func__, __LINE__, cm_node, + cm_node->listener, cm_node->state); + indicate_pkt_err(cm_node, skb); + nes_debug(NES_DBG_CM, "seq ERROR cm_node =%p seq=0x%08X " + "rcv_nxt=0x%08X rcv_wnd=0x%x\n", cm_node, seq, rcv_nxt, + rcv_wnd); + } + return err; +} + +/* + * handle_syn_pkt() is for Passive node. The syn packet is received when a node + * is created with a listener or it may comein as rexmitted packet which in + * that case will be just dropped. + */ + +static void handle_syn_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb, + struct tcphdr *tcph) +{ + int ret; + u32 inc_sequence; + int optionsize; optionsize = (tcph->doff << 2) - sizeof(struct tcphdr); + skb_pull(skb, tcph->doff << 2); + inc_sequence = ntohl(tcph->seq); - skb_pull(skb, ip_hdr(skb)->ihl << 2); + switch (cm_node->state) { + case NES_CM_STATE_SYN_SENT: + case NES_CM_STATE_MPAREQ_SENT: + /* Rcvd syn on active open connection*/ + active_open_err(cm_node, skb, 1); + break; + case NES_CM_STATE_LISTENING: + /* Passive OPEN */ + cm_node->accept_pend = 1; + atomic_inc(&cm_node->listener->pend_accepts_cnt); + if (atomic_read(&cm_node->listener->pend_accepts_cnt) > + cm_node->listener->backlog) { + nes_debug(NES_DBG_CM, "drop syn due to backlog " + "pressure \n"); + cm_backlog_drops++; + passive_open_err(cm_node, skb, 0); + break; + } + ret = handle_tcp_options(cm_node, tcph, skb, optionsize, + 1); + if (ret) { + passive_open_err(cm_node, skb, 0); + /* drop pkt */ + break; + } + cm_node->tcp_cntxt.rcv_nxt = inc_sequence + 1; + BUG_ON(cm_node->send_entry); + cm_node->state = NES_CM_STATE_SYN_RCVD; + send_syn(cm_node, 1, skb); + break; + case NES_CM_STATE_TSA: + case NES_CM_STATE_ESTABLISHED: + case NES_CM_STATE_FIN_WAIT1: + case NES_CM_STATE_FIN_WAIT2: + case NES_CM_STATE_MPAREQ_RCVD: + case NES_CM_STATE_LAST_ACK: + case NES_CM_STATE_CLOSING: + case NES_CM_STATE_UNKNOWN: + case NES_CM_STATE_CLOSED: + default: + drop_packet(skb); + break; + } +} + +static void handle_synack_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb, + struct tcphdr *tcph) +{ + + int ret; + u32 inc_sequence; + int optionsize; + + optionsize = (tcph->doff << 2) - sizeof(struct tcphdr); skb_pull(skb, tcph->doff << 2); + inc_sequence = ntohl(tcph->seq); + switch (cm_node->state) { + case NES_CM_STATE_SYN_SENT: + /* active open */ + if (check_syn(cm_node, tcph, skb)) + return; + cm_node->tcp_cntxt.rem_ack_num = ntohl(tcph->ack_seq); + /* setup options */ + ret = handle_tcp_options(cm_node, tcph, skb, optionsize, 0); + if (ret) { + nes_debug(NES_DBG_CM, "cm_node=%p tcp_options failed\n", + cm_node); + break; + } + cleanup_retrans_entry(cm_node); + cm_node->tcp_cntxt.rcv_nxt = inc_sequence + 1; + send_mpa_request(cm_node, skb); + cm_node->state = NES_CM_STATE_MPAREQ_SENT; + break; + case NES_CM_STATE_MPAREQ_RCVD: + /* passive open, so should not be here */ + passive_open_err(cm_node, skb, 1); + break; + case NES_CM_STATE_ESTABLISHED: + case NES_CM_STATE_FIN_WAIT1: + case NES_CM_STATE_FIN_WAIT2: + case NES_CM_STATE_LAST_ACK: + case NES_CM_STATE_TSA: + case NES_CM_STATE_CLOSING: + case NES_CM_STATE_UNKNOWN: + case NES_CM_STATE_CLOSED: + case NES_CM_STATE_MPAREQ_SENT: + default: + drop_packet(skb); + break; + } +} - datasize = skb->len; +static void handle_ack_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb, + struct tcphdr *tcph) +{ + int datasize = 0; + u32 inc_sequence; + u32 rem_seq_ack; + u32 rem_seq; + if (check_seq(cm_node, tcph, skb)) + return; + + skb_pull(skb, tcph->doff << 2); inc_sequence = ntohl(tcph->seq); - nes_debug(NES_DBG_CM, "datasize = %u, sequence = 0x%08X, ack_seq = 0x%08X," - " rcv_nxt = 0x%08X Flags: %s %s.\n", - datasize, inc_sequence, ntohl(tcph->ack_seq), - cm_node->tcp_cntxt.rcv_nxt, (tcph->syn ? "SYN":""), - (tcph->ack ? "ACK":"")); - - if (!tcph->syn && (inc_sequence != cm_node->tcp_cntxt.rcv_nxt) - ) { - nes_debug(NES_DBG_CM, "dropping packet, datasize = %u, sequence = 0x%08X," - " ack_seq = 0x%08X, rcv_nxt = 0x%08X Flags: %s.\n", - datasize, inc_sequence, ntohl(tcph->ack_seq), - cm_node->tcp_cntxt.rcv_nxt, (tcph->ack ? "ACK":"")); - if (cm_node->state == NES_CM_STATE_LISTENING) { - rem_ref_cm_node(cm_core, cm_node); + rem_seq = ntohl(tcph->seq); + rem_seq_ack = ntohl(tcph->ack_seq); + datasize = skb->len; + + switch (cm_node->state) { + case NES_CM_STATE_SYN_RCVD: + /* Passive OPEN */ + cm_node->tcp_cntxt.rem_ack_num = ntohl(tcph->ack_seq); + cm_node->state = NES_CM_STATE_ESTABLISHED; + if (datasize) { + cm_node->tcp_cntxt.rcv_nxt = inc_sequence + datasize; + cm_node->state = NES_CM_STATE_MPAREQ_RCVD; + handle_rcv_mpa(cm_node, skb, NES_CM_EVENT_MPA_REQ); + } else { /* rcvd ACK only */ + dev_kfree_skb_any(skb); + cleanup_retrans_entry(cm_node); + } + break; + case NES_CM_STATE_ESTABLISHED: + /* Passive OPEN */ + /* We expect mpa frame to be received only */ + if (datasize) { + cm_node->tcp_cntxt.rcv_nxt = inc_sequence + datasize; + cm_node->state = NES_CM_STATE_MPAREQ_RCVD; + handle_rcv_mpa(cm_node, skb, + NES_CM_EVENT_MPA_REQ); + } else + drop_packet(skb); + break; + case NES_CM_STATE_MPAREQ_SENT: + cm_node->tcp_cntxt.rem_ack_num = ntohl(tcph->ack_seq); + if (datasize) { + cm_node->tcp_cntxt.rcv_nxt = inc_sequence + datasize; + handle_rcv_mpa(cm_node, skb, NES_CM_EVENT_CONNECTED); + } else { /* Could be just an ack pkt.. */ + cleanup_retrans_entry(cm_node); + dev_kfree_skb_any(skb); } - return -1; + break; + case NES_CM_STATE_FIN_WAIT1: + case NES_CM_STATE_SYN_SENT: + case NES_CM_STATE_FIN_WAIT2: + case NES_CM_STATE_TSA: + case NES_CM_STATE_CLOSED: + case NES_CM_STATE_MPAREQ_RCVD: + case NES_CM_STATE_LAST_ACK: + case NES_CM_STATE_CLOSING: + case NES_CM_STATE_UNKNOWN: + default: + drop_packet(skb); + break; } +} - cm_node->tcp_cntxt.rcv_nxt = inc_sequence + datasize; +static int handle_tcp_options(struct nes_cm_node *cm_node, struct tcphdr *tcph, + struct sk_buff *skb, int optionsize, int passive) +{ + u8 *optionsloc = (u8 *)&tcph[1]; if (optionsize) { - u8 *optionsloc = (u8 *)&tcph[1]; - if (process_options(cm_node, optionsloc, optionsize, (u32)tcph->syn)) { - nes_debug(NES_DBG_CM, "%s: Node %p, Sending RESET\n", __func__, cm_node); - send_reset(cm_node); - if (cm_node->state != NES_CM_STATE_SYN_SENT) - rem_ref_cm_node(cm_core, cm_node); - return 0; + if (process_options(cm_node, optionsloc, optionsize, + (u32)tcph->syn)) { + nes_debug(NES_DBG_CM, "%s: Node %p, Sending RESET\n", + __func__, cm_node); + if (passive) + passive_open_err(cm_node, skb, 0); + else + active_open_err(cm_node, skb, 0); + return 1; } - } else if (tcph->syn) - cm_node->tcp_cntxt.mss = NES_CM_DEFAULT_MSS; + } cm_node->tcp_cntxt.snd_wnd = ntohs(tcph->window) << cm_node->tcp_cntxt.snd_wscale; - if (cm_node->tcp_cntxt.snd_wnd > cm_node->tcp_cntxt.max_snd_wnd) { + if (cm_node->tcp_cntxt.snd_wnd > cm_node->tcp_cntxt.max_snd_wnd) cm_node->tcp_cntxt.max_snd_wnd = cm_node->tcp_cntxt.snd_wnd; - } + return 0; +} - if (tcph->ack) { - cm_node->tcp_cntxt.rem_ack_num = ntohl(tcph->ack_seq); - switch (cm_node->state) { - case NES_CM_STATE_SYN_RCVD: - case NES_CM_STATE_SYN_SENT: - /* read and stash current sequence number */ - if (cm_node->tcp_cntxt.rem_ack_num != cm_node->tcp_cntxt.loc_seq_num) { - nes_debug(NES_DBG_CM, "ERROR - cm_node->tcp_cntxt.rem_ack_num !=" - " cm_node->tcp_cntxt.loc_seq_num\n"); - send_reset(cm_node); - return 0; - } - if (cm_node->state == NES_CM_STATE_SYN_SENT) - cm_node->state = NES_CM_STATE_ONE_SIDE_ESTABLISHED; - else { - cm_node->state = NES_CM_STATE_ESTABLISHED; - } - break; - case NES_CM_STATE_LAST_ACK: - cm_node->state = NES_CM_STATE_CLOSED; - break; - case NES_CM_STATE_FIN_WAIT1: - cm_node->state = NES_CM_STATE_FIN_WAIT2; - break; - case NES_CM_STATE_CLOSING: - cm_node->state = NES_CM_STATE_TIME_WAIT; - /* need to schedule this to happen in 2MSL timeouts */ - cm_node->state = NES_CM_STATE_CLOSED; - break; - case NES_CM_STATE_ONE_SIDE_ESTABLISHED: - case NES_CM_STATE_ESTABLISHED: - case NES_CM_STATE_MPAREQ_SENT: - case NES_CM_STATE_CLOSE_WAIT: - case NES_CM_STATE_TIME_WAIT: - case NES_CM_STATE_CLOSED: - break; - case NES_CM_STATE_LISTENING: - nes_debug(NES_DBG_CM, "Received an ACK on a listening port (SYN %d)\n", tcph->syn); - cm_node->tcp_cntxt.loc_seq_num = ntohl(tcph->ack_seq); - send_reset(cm_node); - /* send_reset bumps refcount, this should have been a new node */ - rem_ref_cm_node(cm_core, cm_node); - return -1; - break; - case NES_CM_STATE_TSA: - nes_debug(NES_DBG_CM, "Received a packet with the ack bit set while in TSA state\n"); - break; - case NES_CM_STATE_UNKNOWN: - case NES_CM_STATE_INITED: - case NES_CM_STATE_ACCEPTING: - case NES_CM_STATE_FIN_WAIT2: - default: - nes_debug(NES_DBG_CM, "Received ack from unknown state: %x\n", - cm_node->state); - send_reset(cm_node); - break; - } - } +/* + * active_open_err() will send reset() if flag set.. + * It will also send ABORT event. + */ - if (tcph->syn) { - if (cm_node->state == NES_CM_STATE_LISTENING) { - /* do not exceed backlog */ - atomic_inc(&cm_node->listener->pend_accepts_cnt); - if (atomic_read(&cm_node->listener->pend_accepts_cnt) > - cm_node->listener->backlog) { - nes_debug(NES_DBG_CM, "drop syn due to backlog pressure \n"); - cm_backlog_drops++; - atomic_dec(&cm_node->listener->pend_accepts_cnt); - rem_ref_cm_node(cm_core, cm_node); - return 0; - } - cm_node->accept_pend = 1; +static void active_open_err(struct nes_cm_node *cm_node, struct sk_buff *skb, + int reset) +{ + cleanup_retrans_entry(cm_node); + if (reset) { + nes_debug(NES_DBG_CM, "ERROR active err called for cm_node=%p, " + "state=%d\n", cm_node, cm_node->state); + add_ref_cm_node(cm_node); + send_reset(cm_node, skb); + } else + dev_kfree_skb_any(skb); - } - if (datasize == 0) - cm_node->tcp_cntxt.rcv_nxt ++; + cm_node->state = NES_CM_STATE_CLOSED; + create_event(cm_node, NES_CM_EVENT_ABORTED); +} - if (cm_node->state == NES_CM_STATE_LISTENING) { - cm_node->state = NES_CM_STATE_SYN_RCVD; - send_syn(cm_node, 1); - } - if (cm_node->state == NES_CM_STATE_ONE_SIDE_ESTABLISHED) { - cm_node->state = NES_CM_STATE_ESTABLISHED; - /* send final handshake ACK */ - ret = send_ack(cm_node); - if (ret < 0) - return ret; +/* + * passive_open_err() will either do a reset() or will free up the skb and + * remove the cm_node. + */ - cm_node->state = NES_CM_STATE_MPAREQ_SENT; - ret = send_mpa_request(cm_node); - if (ret < 0) - return ret; - } +static void passive_open_err(struct nes_cm_node *cm_node, struct sk_buff *skb, + int reset) +{ + cleanup_retrans_entry(cm_node); + cm_node->state = NES_CM_STATE_CLOSED; + if (reset) { + nes_debug(NES_DBG_CM, "passive_open_err sending RST for " + "cm_node=%p state =%d\n", cm_node, cm_node->state); + send_reset(cm_node, skb); + } else { + dev_kfree_skb_any(skb); + rem_ref_cm_node(cm_node->cm_core, cm_node); } +} - if (tcph->fin) { - cm_node->tcp_cntxt.rcv_nxt++; - switch (cm_node->state) { - case NES_CM_STATE_SYN_RCVD: - case NES_CM_STATE_SYN_SENT: - case NES_CM_STATE_ONE_SIDE_ESTABLISHED: - case NES_CM_STATE_ESTABLISHED: - case NES_CM_STATE_ACCEPTING: - case NES_CM_STATE_MPAREQ_SENT: - cm_node->state = NES_CM_STATE_CLOSE_WAIT; - cm_node->state = NES_CM_STATE_LAST_ACK; - ret = send_fin(cm_node, NULL); - break; - case NES_CM_STATE_FIN_WAIT1: - cm_node->state = NES_CM_STATE_CLOSING; - ret = send_ack(cm_node); - break; - case NES_CM_STATE_FIN_WAIT2: - cm_node->state = NES_CM_STATE_TIME_WAIT; - cm_node->tcp_cntxt.loc_seq_num ++; - ret = send_ack(cm_node); - /* need to schedule this to happen in 2MSL timeouts */ - cm_node->state = NES_CM_STATE_CLOSED; - break; - case NES_CM_STATE_CLOSE_WAIT: - case NES_CM_STATE_LAST_ACK: - case NES_CM_STATE_CLOSING: - case NES_CM_STATE_TSA: - default: - nes_debug(NES_DBG_CM, "Received a fin while in %x state\n", - cm_node->state); - ret = -EINVAL; - break; - } +/* + * free_retrans_entry() routines assumes that the retrans_list_lock has + * been acquired before calling. + */ +static void free_retrans_entry(struct nes_cm_node *cm_node) +{ + struct nes_timer_entry *send_entry; + send_entry = cm_node->send_entry; + if (send_entry) { + cm_node->send_entry = NULL; + dev_kfree_skb_any(send_entry->skb); + kfree(send_entry); + rem_ref_cm_node(cm_node->cm_core, cm_node); } +} - if (datasize) { - u8 *dataloc = skb->data; - /* figure out what state we are in and handle transition to next state */ - switch (cm_node->state) { - case NES_CM_STATE_LISTENING: - case NES_CM_STATE_SYN_RCVD: - case NES_CM_STATE_SYN_SENT: - case NES_CM_STATE_FIN_WAIT1: - case NES_CM_STATE_FIN_WAIT2: - case NES_CM_STATE_CLOSE_WAIT: - case NES_CM_STATE_LAST_ACK: - case NES_CM_STATE_CLOSING: - break; - case NES_CM_STATE_MPAREQ_SENT: - /* recv the mpa res frame, ret=frame len (incl priv data) */ - ret = parse_mpa(cm_node, dataloc, datasize); - if (ret < 0) - break; - /* set the req frame payload len in skb */ - /* we are done handling this state, set node to a TSA state */ - cm_node->state = NES_CM_STATE_TSA; - send_ack(cm_node); - create_event(cm_node, NES_CM_EVENT_CONNECTED); - break; - - case NES_CM_STATE_ESTABLISHED: - /* we are expecting an MPA req frame */ - ret = parse_mpa(cm_node, dataloc, datasize); - if (ret < 0) { - break; - } - cm_node->state = NES_CM_STATE_TSA; - send_ack(cm_node); - /* we got a valid MPA request, create an event */ - create_event(cm_node, NES_CM_EVENT_MPA_REQ); - break; - case NES_CM_STATE_TSA: - handle_exception_pkt(cm_node, skb); - break; - case NES_CM_STATE_UNKNOWN: - case NES_CM_STATE_INITED: - default: - ret = -1; - } - } +static void cleanup_retrans_entry(struct nes_cm_node *cm_node) +{ + unsigned long flags; - return ret; + spin_lock_irqsave(&cm_node->retrans_list_lock, flags); + free_retrans_entry(cm_node); + spin_unlock_irqrestore(&cm_node->retrans_list_lock, flags); } +/** + * process_packet + * Returns skb if to be freed, else it will return NULL if already used.. + */ +static void process_packet(struct nes_cm_node *cm_node, struct sk_buff *skb, + struct nes_cm_core *cm_core) +{ + enum nes_tcpip_pkt_type pkt_type = NES_PKT_TYPE_UNKNOWN; + struct tcphdr *tcph = tcp_hdr(skb); + skb_pull(skb, ip_hdr(skb)->ihl << 2); + + nes_debug(NES_DBG_CM, "process_packet: cm_node=%p state =%d syn=%d " + "ack=%d rst=%d fin=%d\n", cm_node, cm_node->state, tcph->syn, + tcph->ack, tcph->rst, tcph->fin); + + if (tcph->rst) + pkt_type = NES_PKT_TYPE_RST; + else if (tcph->syn) { + pkt_type = NES_PKT_TYPE_SYN; + if (tcph->ack) + pkt_type = NES_PKT_TYPE_SYNACK; + } else if (tcph->fin) + pkt_type = NES_PKT_TYPE_FIN; + else if (tcph->ack) + pkt_type = NES_PKT_TYPE_ACK; + + switch (pkt_type) { + case NES_PKT_TYPE_SYN: + handle_syn_pkt(cm_node, skb, tcph); + break; + case NES_PKT_TYPE_SYNACK: + handle_synack_pkt(cm_node, skb, tcph); + break; + case NES_PKT_TYPE_ACK: + handle_ack_pkt(cm_node, skb, tcph); + break; + case NES_PKT_TYPE_RST: + handle_rst_pkt(cm_node, skb, tcph); + break; + case NES_PKT_TYPE_FIN: + handle_fin_pkt(cm_node, skb, tcph); + break; + default: + drop_packet(skb); + break; + } +} /** * mini_cm_listen - create a listen node with params */ static struct nes_cm_listener *mini_cm_listen(struct nes_cm_core *cm_core, - struct nes_vnic *nesvnic, struct nes_cm_info *cm_info) + struct nes_vnic *nesvnic, struct nes_cm_info *cm_info) { struct nes_cm_listener *listener; unsigned long flags; @@ -1644,37 +1826,36 @@ static struct nes_cm_listener *mini_cm_listen(struct nes_cm_core *cm_core, /** * mini_cm_connect - make a connection node with params */ -static struct nes_cm_node *mini_cm_connect(struct nes_cm_core *cm_core, - struct nes_vnic *nesvnic, - struct ietf_mpa_frame *mpa_frame, - struct nes_cm_info *cm_info) +struct nes_cm_node *mini_cm_connect(struct nes_cm_core *cm_core, + struct nes_vnic *nesvnic, u16 private_data_len, + void *private_data, struct nes_cm_info *cm_info) { int ret = 0; struct nes_cm_node *cm_node; struct nes_cm_listener *loopbackremotelistener; struct nes_cm_node *loopbackremotenode; struct nes_cm_info loopback_cm_info; - - u16 mpa_frame_size = sizeof(struct ietf_mpa_frame) + - ntohs(mpa_frame->priv_data_len); - - cm_info->loc_addr = htonl(cm_info->loc_addr); - cm_info->rem_addr = htonl(cm_info->rem_addr); - cm_info->loc_port = htons(cm_info->loc_port); - cm_info->rem_port = htons(cm_info->rem_port); + u16 mpa_frame_size = sizeof(struct ietf_mpa_frame) + private_data_len; + struct ietf_mpa_frame *mpa_frame = NULL; /* create a CM connection node */ cm_node = make_cm_node(cm_core, nesvnic, cm_info, NULL); if (!cm_node) return NULL; + mpa_frame = &cm_node->mpa_frame; + strcpy(mpa_frame->key, IEFT_MPA_KEY_REQ); + mpa_frame->flags = IETF_MPA_FLAGS_CRC; + mpa_frame->rev = IETF_MPA_VERSION; + mpa_frame->priv_data_len = htons(private_data_len); /* set our node side to client (active) side */ cm_node->tcp_cntxt.client = 1; cm_node->tcp_cntxt.rcv_wscale = NES_CM_DEFAULT_RCV_WND_SCALE; if (cm_info->loc_addr == cm_info->rem_addr) { - loopbackremotelistener = find_listener(cm_core, cm_node->rem_addr, - cm_node->rem_port, NES_CM_LISTENER_ACTIVE_STATE); + loopbackremotelistener = find_listener(cm_core, + ntohl(nesvnic->local_ipaddr), cm_node->rem_port, + NES_CM_LISTENER_ACTIVE_STATE); if (loopbackremotelistener == NULL) { create_event(cm_node, NES_CM_EVENT_ABORTED); } else { @@ -1683,26 +1864,35 @@ static struct nes_cm_node *mini_cm_connect(struct nes_cm_core *cm_core, loopback_cm_info.loc_port = cm_info->rem_port; loopback_cm_info.rem_port = cm_info->loc_port; loopback_cm_info.cm_id = loopbackremotelistener->cm_id; - loopbackremotenode = make_cm_node(cm_core, nesvnic, &loopback_cm_info, - loopbackremotelistener); + loopbackremotenode = make_cm_node(cm_core, nesvnic, + &loopback_cm_info, loopbackremotelistener); loopbackremotenode->loopbackpartner = cm_node; - loopbackremotenode->tcp_cntxt.rcv_wscale = NES_CM_DEFAULT_RCV_WND_SCALE; + loopbackremotenode->tcp_cntxt.rcv_wscale = + NES_CM_DEFAULT_RCV_WND_SCALE; cm_node->loopbackpartner = loopbackremotenode; - memcpy(loopbackremotenode->mpa_frame_buf, &mpa_frame->priv_data, - mpa_frame_size); - loopbackremotenode->mpa_frame_size = mpa_frame_size - - sizeof(struct ietf_mpa_frame); + memcpy(loopbackremotenode->mpa_frame_buf, private_data, + private_data_len); + loopbackremotenode->mpa_frame_size = private_data_len; - /* we are done handling this state, set node to a TSA state */ + /* we are done handling this state. */ + /* set node to a TSA state */ cm_node->state = NES_CM_STATE_TSA; - cm_node->tcp_cntxt.rcv_nxt = loopbackremotenode->tcp_cntxt.loc_seq_num; - loopbackremotenode->tcp_cntxt.rcv_nxt = cm_node->tcp_cntxt.loc_seq_num; - cm_node->tcp_cntxt.max_snd_wnd = loopbackremotenode->tcp_cntxt.rcv_wnd; - loopbackremotenode->tcp_cntxt.max_snd_wnd = cm_node->tcp_cntxt.rcv_wnd; - cm_node->tcp_cntxt.snd_wnd = loopbackremotenode->tcp_cntxt.rcv_wnd; - loopbackremotenode->tcp_cntxt.snd_wnd = cm_node->tcp_cntxt.rcv_wnd; - cm_node->tcp_cntxt.snd_wscale = loopbackremotenode->tcp_cntxt.rcv_wscale; - loopbackremotenode->tcp_cntxt.snd_wscale = cm_node->tcp_cntxt.rcv_wscale; + cm_node->tcp_cntxt.rcv_nxt = + loopbackremotenode->tcp_cntxt.loc_seq_num; + loopbackremotenode->tcp_cntxt.rcv_nxt = + cm_node->tcp_cntxt.loc_seq_num; + cm_node->tcp_cntxt.max_snd_wnd = + loopbackremotenode->tcp_cntxt.rcv_wnd; + loopbackremotenode->tcp_cntxt.max_snd_wnd = + cm_node->tcp_cntxt.rcv_wnd; + cm_node->tcp_cntxt.snd_wnd = + loopbackremotenode->tcp_cntxt.rcv_wnd; + loopbackremotenode->tcp_cntxt.snd_wnd = + cm_node->tcp_cntxt.rcv_wnd; + cm_node->tcp_cntxt.snd_wscale = + loopbackremotenode->tcp_cntxt.rcv_wscale; + loopbackremotenode->tcp_cntxt.snd_wscale = + cm_node->tcp_cntxt.rcv_wscale; create_event(loopbackremotenode, NES_CM_EVENT_MPA_REQ); } @@ -1712,16 +1902,29 @@ static struct nes_cm_node *mini_cm_connect(struct nes_cm_core *cm_core, /* set our node side to client (active) side */ cm_node->tcp_cntxt.client = 1; /* init our MPA frame ptr */ - memcpy(&cm_node->mpa_frame, mpa_frame, mpa_frame_size); + memcpy(mpa_frame->priv_data, private_data, private_data_len); + cm_node->mpa_frame_size = mpa_frame_size; /* send a syn and goto syn sent state */ cm_node->state = NES_CM_STATE_SYN_SENT; - ret = send_syn(cm_node, 0); + ret = send_syn(cm_node, 0, NULL); + + if (ret) { + /* error in sending the syn free up the cm_node struct */ + nes_debug(NES_DBG_CM, "Api - connect() FAILED: dest " + "addr=0x%08X, port=0x%04x, cm_node=%p, cm_id = %p.\n", + cm_node->rem_addr, cm_node->rem_port, cm_node, + cm_node->cm_id); + rem_ref_cm_node(cm_node->cm_core, cm_node); + cm_node = NULL; + } - nes_debug(NES_DBG_CM, "Api - connect(): dest addr=0x%08X, port=0x%04x," - " cm_node=%p, cm_id = %p.\n", - cm_node->rem_addr, cm_node->rem_port, cm_node, cm_node->cm_id); + if (cm_node) + nes_debug(NES_DBG_CM, "Api - connect(): dest addr=0x%08X," + "port=0x%04x, cm_node=%p, cm_id = %p.\n", + cm_node->rem_addr, cm_node->rem_port, cm_node, + cm_node->cm_id); return cm_node; } @@ -1731,8 +1934,8 @@ static struct nes_cm_node *mini_cm_connect(struct nes_cm_core *cm_core, * mini_cm_accept - accept a connection * This function is never called */ -static int mini_cm_accept(struct nes_cm_core *cm_core, struct ietf_mpa_frame *mpa_frame, - struct nes_cm_node *cm_node) +static int mini_cm_accept(struct nes_cm_core *cm_core, + struct ietf_mpa_frame *mpa_frame, struct nes_cm_node *cm_node) { return 0; } @@ -1742,32 +1945,26 @@ static int mini_cm_accept(struct nes_cm_core *cm_core, struct ietf_mpa_frame *mp * mini_cm_reject - reject and teardown a connection */ static int mini_cm_reject(struct nes_cm_core *cm_core, - struct ietf_mpa_frame *mpa_frame, - struct nes_cm_node *cm_node) + struct ietf_mpa_frame *mpa_frame, struct nes_cm_node *cm_node) { int ret = 0; - struct sk_buff *skb; - u16 mpa_frame_size = sizeof(struct ietf_mpa_frame) + - ntohs(mpa_frame->priv_data_len); - skb = get_free_pkt(cm_node); - if (!skb) { - nes_debug(NES_DBG_CM, "Failed to get a Free pkt\n"); - return -1; - } - - /* send an MPA Request frame */ - form_cm_frame(skb, cm_node, NULL, 0, mpa_frame, mpa_frame_size, SET_ACK | SET_FIN); - ret = schedule_nes_timer(cm_node, skb, NES_TIMER_TYPE_SEND, 1, 0); + nes_debug(NES_DBG_CM, "%s cm_node=%p type=%d state=%d\n", + __func__, cm_node, cm_node->tcp_cntxt.client, cm_node->state); + if (cm_node->tcp_cntxt.client) + return ret; + cleanup_retrans_entry(cm_node); cm_node->state = NES_CM_STATE_CLOSED; ret = send_fin(cm_node, NULL); - if (ret < 0) { - printk(KERN_INFO PFX "failed to send MPA Reply (reject)\n"); - return ret; + if (cm_node->accept_pend) { + BUG_ON(!cm_node->listener); + atomic_dec(&cm_node->listener->pend_accepts_cnt); + BUG_ON(atomic_read(&cm_node->listener->pend_accepts_cnt) < 0); } + ret = send_reset(cm_node, NULL); return ret; } @@ -1783,35 +1980,39 @@ static int mini_cm_close(struct nes_cm_core *cm_core, struct nes_cm_node *cm_nod return -EINVAL; switch (cm_node->state) { - /* if passed in node is null, create a reference key node for node search */ - /* check if we found an owner node for this pkt */ - case NES_CM_STATE_SYN_RCVD: - case NES_CM_STATE_SYN_SENT: - case NES_CM_STATE_ONE_SIDE_ESTABLISHED: - case NES_CM_STATE_ESTABLISHED: - case NES_CM_STATE_ACCEPTING: - case NES_CM_STATE_MPAREQ_SENT: - cm_node->state = NES_CM_STATE_FIN_WAIT1; - send_fin(cm_node, NULL); - break; - case NES_CM_STATE_CLOSE_WAIT: - cm_node->state = NES_CM_STATE_LAST_ACK; - send_fin(cm_node, NULL); - break; - case NES_CM_STATE_FIN_WAIT1: - case NES_CM_STATE_FIN_WAIT2: - case NES_CM_STATE_LAST_ACK: - case NES_CM_STATE_TIME_WAIT: - case NES_CM_STATE_CLOSING: - ret = -1; - break; - case NES_CM_STATE_LISTENING: - case NES_CM_STATE_UNKNOWN: - case NES_CM_STATE_INITED: - case NES_CM_STATE_CLOSED: - case NES_CM_STATE_TSA: - ret = rem_ref_cm_node(cm_core, cm_node); - break; + case NES_CM_STATE_SYN_RCVD: + case NES_CM_STATE_SYN_SENT: + case NES_CM_STATE_ONE_SIDE_ESTABLISHED: + case NES_CM_STATE_ESTABLISHED: + case NES_CM_STATE_ACCEPTING: + case NES_CM_STATE_MPAREQ_SENT: + case NES_CM_STATE_MPAREQ_RCVD: + cleanup_retrans_entry(cm_node); + send_reset(cm_node, NULL); + break; + case NES_CM_STATE_CLOSE_WAIT: + cm_node->state = NES_CM_STATE_LAST_ACK; + send_fin(cm_node, NULL); + break; + case NES_CM_STATE_FIN_WAIT1: + case NES_CM_STATE_FIN_WAIT2: + case NES_CM_STATE_LAST_ACK: + case NES_CM_STATE_TIME_WAIT: + case NES_CM_STATE_CLOSING: + ret = -1; + break; + case NES_CM_STATE_LISTENING: + case NES_CM_STATE_UNKNOWN: + case NES_CM_STATE_INITED: + case NES_CM_STATE_CLOSED: + ret = rem_ref_cm_node(cm_core, cm_node); + break; + case NES_CM_STATE_TSA: + if (cm_node->send_entry) + printk(KERN_ERR "ERROR Close got called from STATE_TSA " + "send_entry=%p\n", cm_node->send_entry); + ret = rem_ref_cm_node(cm_core, cm_node); + break; } cm_node->cm_id = NULL; return ret; @@ -1822,25 +2023,30 @@ static int mini_cm_close(struct nes_cm_core *cm_core, struct nes_cm_node *cm_nod * recv_pkt - recv an ETHERNET packet, and process it through CM * node state machine */ -static int mini_cm_recv_pkt(struct nes_cm_core *cm_core, struct nes_vnic *nesvnic, - struct sk_buff *skb) +static void mini_cm_recv_pkt(struct nes_cm_core *cm_core, + struct nes_vnic *nesvnic, struct sk_buff *skb) { struct nes_cm_node *cm_node = NULL; struct nes_cm_listener *listener = NULL; struct iphdr *iph; struct tcphdr *tcph; struct nes_cm_info nfo; - int ret = 0; - if (!skb || skb->len < sizeof(struct iphdr) + sizeof(struct tcphdr)) { - ret = -EINVAL; - goto out; + if (!skb) + return; + if (skb->len < sizeof(struct iphdr) + sizeof(struct tcphdr)) { + dev_kfree_skb_any(skb); + return; } iph = (struct iphdr *)skb->data; tcph = (struct tcphdr *)(skb->data + sizeof(struct iphdr)); skb_reset_network_header(skb); skb_set_transport_header(skb, sizeof(*tcph)); + if (!tcph) { + dev_kfree_skb_any(skb); + return; + } skb->len = ntohs(iph->tot_len); nfo.loc_addr = ntohl(iph->daddr); @@ -1853,61 +2059,60 @@ static int mini_cm_recv_pkt(struct nes_cm_core *cm_core, struct nes_vnic *nesvni NIPQUAD(iph->daddr), tcph->dest, NIPQUAD(iph->saddr), tcph->source); - /* note: this call is going to increment cm_node ref count */ - cm_node = find_node(cm_core, + do { + cm_node = find_node(cm_core, nfo.rem_port, nfo.rem_addr, nfo.loc_port, nfo.loc_addr); - if (!cm_node) { - listener = find_listener(cm_core, nfo.loc_addr, nfo.loc_port, - NES_CM_LISTENER_ACTIVE_STATE); - if (listener) { - nfo.cm_id = listener->cm_id; - nfo.conn_type = listener->conn_type; - } else { - nfo.cm_id = NULL; - nfo.conn_type = 0; - } - - cm_node = make_cm_node(cm_core, nesvnic, &nfo, listener); if (!cm_node) { - nes_debug(NES_DBG_CM, "Unable to allocate node\n"); + /* Only type of packet accepted are for */ + /* the PASSIVE open (syn only) */ + if ((!tcph->syn) || (tcph->ack)) { + cm_packets_dropped++; + break; + } + listener = find_listener(cm_core, nfo.loc_addr, + nfo.loc_port, + NES_CM_LISTENER_ACTIVE_STATE); if (listener) { - nes_debug(NES_DBG_CM, "unable to allocate node and decrementing listener refcount\n"); + nfo.cm_id = listener->cm_id; + nfo.conn_type = listener->conn_type; + } else { + nes_debug(NES_DBG_CM, "Unable to find listener " + "for the pkt\n"); + cm_packets_dropped++; + dev_kfree_skb_any(skb); + break; + } + + cm_node = make_cm_node(cm_core, nesvnic, &nfo, + listener); + if (!cm_node) { + nes_debug(NES_DBG_CM, "Unable to allocate " + "node\n"); + cm_packets_dropped++; atomic_dec(&listener->ref_count); + dev_kfree_skb_any(skb); + break; } - ret = -1; - goto out; - } - if (!listener) { - nes_debug(NES_DBG_CM, "Packet found for unknown port %x refcnt=%d\n", - nfo.loc_port, atomic_read(&cm_node->ref_count)); - if (!tcph->rst) { - nes_debug(NES_DBG_CM, "Packet found for unknown port=%d" - " rem_port=%d refcnt=%d\n", - nfo.loc_port, nfo.rem_port, atomic_read(&cm_node->ref_count)); - - cm_node->tcp_cntxt.rcv_nxt = ntohl(tcph->seq); - cm_node->tcp_cntxt.loc_seq_num = ntohl(tcph->ack_seq); - send_reset(cm_node); + if (!tcph->rst && !tcph->fin) { + cm_node->state = NES_CM_STATE_LISTENING; + } else { + cm_packets_dropped++; + rem_ref_cm_node(cm_core, cm_node); + dev_kfree_skb_any(skb); + break; } + add_ref_cm_node(cm_node); + } else if (cm_node->state == NES_CM_STATE_TSA) { rem_ref_cm_node(cm_core, cm_node); - ret = -1; - goto out; + atomic_inc(&cm_accel_dropped_pkts); + dev_kfree_skb_any(skb); + break; } - add_ref_cm_node(cm_node); - cm_node->state = NES_CM_STATE_LISTENING; - } - - nes_debug(NES_DBG_CM, "Processing Packet for node %p, data = (%p):\n", - cm_node, skb->data); - process_packet(cm_node, skb, cm_core); - - rem_ref_cm_node(cm_core, cm_node); - out: - if (skb) - dev_kfree_skb_any(skb); - return ret; + process_packet(cm_node, skb, cm_core); + rem_ref_cm_node(cm_core, cm_node); + } while (0); } @@ -2107,15 +2312,12 @@ int nes_cm_disconn(struct nes_qp *nesqp) if (nesqp->disconn_pending == 0) { nesqp->disconn_pending++; spin_unlock_irqrestore(&nesqp->lock, flags); - /* nes_add_ref(&nesqp->ibqp); */ /* init our disconnect work element, to */ INIT_WORK(&nesqp->disconn_work, nes_disconnect_worker); queue_work(g_cm_core->disconn_wq, &nesqp->disconn_work); - } else { + } else spin_unlock_irqrestore(&nesqp->lock, flags); - nes_rem_ref(&nesqp->ibqp); - } return 0; } @@ -2161,7 +2363,6 @@ static int nes_cm_disconn_true(struct nes_qp *nesqp) nes_debug(NES_DBG_CM, "QP%u disconnect_worker cmid is NULL\n", nesqp->hwqp.qp_id); spin_unlock_irqrestore(&nesqp->lock, flags); - nes_rem_ref(&nesqp->ibqp); return -1; } @@ -2182,30 +2383,31 @@ static int nes_cm_disconn_true(struct nes_qp *nesqp) atomic_inc(&cm_disconnects); cm_event.event = IW_CM_EVENT_DISCONNECT; if (last_ae == NES_AEQE_AEID_LLP_CONNECTION_RESET) { - issued_disconnect_reset = 1; cm_event.status = IW_CM_EVENT_STATUS_RESET; - nes_debug(NES_DBG_CM, "Generating a CM Disconnect Event (status reset) for " - " QP%u, cm_id = %p. \n", - nesqp->hwqp.qp_id, cm_id); - } else { + nes_debug(NES_DBG_CM, "Generating a CM " + "Disconnect Event (status reset) for " + "QP%u, cm_id = %p. \n", + nesqp->hwqp.qp_id, cm_id); + } else cm_event.status = IW_CM_EVENT_STATUS_OK; - } cm_event.local_addr = cm_id->local_addr; cm_event.remote_addr = cm_id->remote_addr; cm_event.private_data = NULL; cm_event.private_data_len = 0; - nes_debug(NES_DBG_CM, "Generating a CM Disconnect Event for " - " QP%u, SQ Head = %u, SQ Tail = %u. cm_id = %p, refcount = %u.\n", - nesqp->hwqp.qp_id, - nesqp->hwqp.sq_head, nesqp->hwqp.sq_tail, cm_id, - atomic_read(&nesqp->refcount)); + nes_debug(NES_DBG_CM, "Generating a CM Disconnect Event" + " for QP%u, SQ Head = %u, SQ Tail = %u. " + "cm_id = %p, refcount = %u.\n", + nesqp->hwqp.qp_id, nesqp->hwqp.sq_head, + nesqp->hwqp.sq_tail, cm_id, + atomic_read(&nesqp->refcount)); spin_unlock_irqrestore(&nesqp->lock, flags); ret = cm_id->event_handler(cm_id, &cm_event); if (ret) - nes_debug(NES_DBG_CM, "OFA CM event_handler returned, ret=%d\n", ret); + nes_debug(NES_DBG_CM, "OFA CM event_handler " + "returned, ret=%d\n", ret); spin_lock_irqsave(&nesqp->lock, flags); } @@ -2247,31 +2449,24 @@ static int nes_cm_disconn_true(struct nes_qp *nesqp) if (nesqp->flush_issued == 0) { nesqp->flush_issued = 1; spin_unlock_irqrestore(&nesqp->lock, flags); - flush_wqes(nesvnic->nesdev, nesqp, NES_CQP_FLUSH_RQ, 1); - } else { + flush_wqes(nesvnic->nesdev, nesqp, + NES_CQP_FLUSH_RQ, 1); + } else spin_unlock_irqrestore(&nesqp->lock, flags); - } - - /* This reference is from either ModifyQP or the AE processing, - there is still a race here with modifyqp */ - nes_rem_ref(&nesqp->ibqp); - } else { cm_id = nesqp->cm_id; spin_unlock_irqrestore(&nesqp->lock, flags); /* check to see if the inbound reset beat the outbound reset */ if ((!cm_id) && (last_ae==NES_AEQE_AEID_RESET_SENT)) { - nes_debug(NES_DBG_CM, "QP%u: Decing refcount due to inbound reset" - " beating the outbound reset.\n", - nesqp->hwqp.qp_id); - nes_rem_ref(&nesqp->ibqp); + nes_debug(NES_DBG_CM, "QP%u: Decing refcount " + "due to inbound reset beating the " + "outbound reset.\n", nesqp->hwqp.qp_id); } } } else { nesqp->disconn_pending = 0; spin_unlock_irqrestore(&nesqp->lock, flags); } - nes_rem_ref(&nesqp->ibqp); return 0; } @@ -2349,71 +2544,82 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) nesdev = nesvnic->nesdev; adapter = nesdev->nesadapter; - nes_debug(NES_DBG_CM, "nesvnic=%p, netdev=%p, %s\n", - nesvnic, nesvnic->netdev, nesvnic->netdev->name); - - /* since this is from a listen, we were able to put node handle into cm_id */ cm_node = (struct nes_cm_node *)cm_id->provider_data; + nes_debug(NES_DBG_CM, "nes_accept: cm_node= %p nesvnic=%p, netdev=%p," + "%s\n", cm_node, nesvnic, nesvnic->netdev, + nesvnic->netdev->name); /* associate the node with the QP */ nesqp->cm_node = (void *)cm_node; + cm_node->nesqp = nesqp; + nes_add_ref(&nesqp->ibqp); - nes_debug(NES_DBG_CM, "QP%u, cm_node=%p, jiffies = %lu\n", - nesqp->hwqp.qp_id, cm_node, jiffies); + nes_debug(NES_DBG_CM, "QP%u, cm_node=%p, jiffies = %lu listener = %p\n", + nesqp->hwqp.qp_id, cm_node, jiffies, cm_node->listener); atomic_inc(&cm_accepts); nes_debug(NES_DBG_CM, "netdev refcnt = %u.\n", atomic_read(&nesvnic->netdev->refcnt)); - /* allocate the ietf frame and space for private data */ - nesqp->ietf_frame = pci_alloc_consistent(nesdev->pcidev, - sizeof(struct ietf_mpa_frame) + conn_param->private_data_len, - &nesqp->ietf_frame_pbase); - - if (!nesqp->ietf_frame) { - nes_debug(NES_DBG_CM, "Unable to allocate memory for private data\n"); - return -ENOMEM; - } + /* allocate the ietf frame and space for private data */ + nesqp->ietf_frame = pci_alloc_consistent(nesdev->pcidev, + sizeof(struct ietf_mpa_frame) + conn_param->private_data_len, + &nesqp->ietf_frame_pbase); + if (!nesqp->ietf_frame) { + nes_debug(NES_DBG_CM, "Unable to allocate memory for private " + "data\n"); + return -ENOMEM; + } - /* setup the MPA frame */ - nesqp->private_data_len = conn_param->private_data_len; - memcpy(nesqp->ietf_frame->key, IEFT_MPA_KEY_REP, IETF_MPA_KEY_SIZE); - memcpy(nesqp->ietf_frame->priv_data, conn_param->private_data, - conn_param->private_data_len); + /* setup the MPA frame */ + nesqp->private_data_len = conn_param->private_data_len; + memcpy(nesqp->ietf_frame->key, IEFT_MPA_KEY_REP, IETF_MPA_KEY_SIZE); - nesqp->ietf_frame->priv_data_len = cpu_to_be16(conn_param->private_data_len); - nesqp->ietf_frame->rev = mpa_version; - nesqp->ietf_frame->flags = IETF_MPA_FLAGS_CRC; + memcpy(nesqp->ietf_frame->priv_data, conn_param->private_data, + conn_param->private_data_len); - /* setup our first outgoing iWarp send WQE (the IETF frame response) */ - wqe = &nesqp->hwqp.sq_vbase[0]; + nesqp->ietf_frame->priv_data_len = + cpu_to_be16(conn_param->private_data_len); + nesqp->ietf_frame->rev = mpa_version; + nesqp->ietf_frame->flags = IETF_MPA_FLAGS_CRC; - if (cm_id->remote_addr.sin_addr.s_addr != cm_id->local_addr.sin_addr.s_addr) { - u64temp = (unsigned long)nesqp; - u64temp |= NES_SW_CONTEXT_ALIGN>>1; - set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_COMP_CTX_LOW_IDX, - u64temp); - wqe->wqe_words[NES_IWARP_SQ_WQE_MISC_IDX] = - cpu_to_le32(NES_IWARP_SQ_WQE_STREAMING | NES_IWARP_SQ_WQE_WRPDU); - wqe->wqe_words[NES_IWARP_SQ_WQE_TOTAL_PAYLOAD_IDX] = - cpu_to_le32(conn_param->private_data_len + sizeof(struct ietf_mpa_frame)); - wqe->wqe_words[NES_IWARP_SQ_WQE_FRAG0_LOW_IDX] = - cpu_to_le32((u32)nesqp->ietf_frame_pbase); - wqe->wqe_words[NES_IWARP_SQ_WQE_FRAG0_HIGH_IDX] = - cpu_to_le32((u32)((u64)nesqp->ietf_frame_pbase >> 32)); - wqe->wqe_words[NES_IWARP_SQ_WQE_LENGTH0_IDX] = - cpu_to_le32(conn_param->private_data_len + sizeof(struct ietf_mpa_frame)); - wqe->wqe_words[NES_IWARP_SQ_WQE_STAG0_IDX] = 0; - - nesqp->nesqp_context->ird_ord_sizes |= cpu_to_le32( - NES_QPCONTEXT_ORDIRD_LSMM_PRESENT | NES_QPCONTEXT_ORDIRD_WRPDU); - } else { - nesqp->nesqp_context->ird_ord_sizes |= cpu_to_le32((NES_QPCONTEXT_ORDIRD_LSMM_PRESENT | - NES_QPCONTEXT_ORDIRD_WRPDU | NES_QPCONTEXT_ORDIRD_ALSMM)); - } - nesqp->skip_lsmm = 1; + /* setup our first outgoing iWarp send WQE (the IETF frame response) */ + wqe = &nesqp->hwqp.sq_vbase[0]; + + if (cm_id->remote_addr.sin_addr.s_addr != + cm_id->local_addr.sin_addr.s_addr) { + u64temp = (unsigned long)nesqp; + u64temp |= NES_SW_CONTEXT_ALIGN>>1; + set_wqe_64bit_value(wqe->wqe_words, + NES_IWARP_SQ_WQE_COMP_CTX_LOW_IDX, + u64temp); + wqe->wqe_words[NES_IWARP_SQ_WQE_MISC_IDX] = + cpu_to_le32(NES_IWARP_SQ_WQE_STREAMING | + NES_IWARP_SQ_WQE_WRPDU); + wqe->wqe_words[NES_IWARP_SQ_WQE_TOTAL_PAYLOAD_IDX] = + cpu_to_le32(conn_param->private_data_len + + sizeof(struct ietf_mpa_frame)); + wqe->wqe_words[NES_IWARP_SQ_WQE_FRAG0_LOW_IDX] = + cpu_to_le32((u32)nesqp->ietf_frame_pbase); + wqe->wqe_words[NES_IWARP_SQ_WQE_FRAG0_HIGH_IDX] = + cpu_to_le32((u32)((u64)nesqp->ietf_frame_pbase >> 32)); + wqe->wqe_words[NES_IWARP_SQ_WQE_LENGTH0_IDX] = + cpu_to_le32(conn_param->private_data_len + + sizeof(struct ietf_mpa_frame)); + wqe->wqe_words[NES_IWARP_SQ_WQE_STAG0_IDX] = 0; + + nesqp->nesqp_context->ird_ord_sizes |= + cpu_to_le32(NES_QPCONTEXT_ORDIRD_LSMM_PRESENT | + NES_QPCONTEXT_ORDIRD_WRPDU); + } else { + nesqp->nesqp_context->ird_ord_sizes |= + cpu_to_le32((NES_QPCONTEXT_ORDIRD_LSMM_PRESENT | + NES_QPCONTEXT_ORDIRD_WRPDU | + NES_QPCONTEXT_ORDIRD_ALSMM)); + } + nesqp->skip_lsmm = 1; /* Cache the cm_id in the qp */ @@ -2424,55 +2630,75 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) cm_id->provider_data = nesqp; nesqp->active_conn = 0; + if (cm_node->state == NES_CM_STATE_TSA) + nes_debug(NES_DBG_CM, "Already state = TSA for cm_node=%p\n", + cm_node); + nes_cm_init_tsa_conn(nesqp, cm_node); - nesqp->nesqp_context->tcpPorts[0] = cpu_to_le16(ntohs(cm_id->local_addr.sin_port)); - nesqp->nesqp_context->tcpPorts[1] = cpu_to_le16(ntohs(cm_id->remote_addr.sin_port)); - nesqp->nesqp_context->ip0 = cpu_to_le32(ntohl(cm_id->remote_addr.sin_addr.s_addr)); + nesqp->nesqp_context->tcpPorts[0] = + cpu_to_le16(ntohs(cm_id->local_addr.sin_port)); + nesqp->nesqp_context->tcpPorts[1] = + cpu_to_le16(ntohs(cm_id->remote_addr.sin_port)); + + if (ipv4_is_loopback(cm_id->remote_addr.sin_addr.s_addr)) + nesqp->nesqp_context->ip0 = + cpu_to_le32(ntohl(nesvnic->local_ipaddr)); + else + nesqp->nesqp_context->ip0 = + cpu_to_le32(ntohl(cm_id->remote_addr.sin_addr.s_addr)); nesqp->nesqp_context->misc2 |= cpu_to_le32( - (u32)PCI_FUNC(nesdev->pcidev->devfn) << NES_QPCONTEXT_MISC2_SRC_IP_SHIFT); + (u32)PCI_FUNC(nesdev->pcidev->devfn) << + NES_QPCONTEXT_MISC2_SRC_IP_SHIFT); - nesqp->nesqp_context->arp_index_vlan |= cpu_to_le32( - nes_arp_table(nesdev, le32_to_cpu(nesqp->nesqp_context->ip0), NULL, + nesqp->nesqp_context->arp_index_vlan |= + cpu_to_le32(nes_arp_table(nesdev, + le32_to_cpu(nesqp->nesqp_context->ip0), NULL, NES_ARP_RESOLVE) << 16); nesqp->nesqp_context->ts_val_delta = cpu_to_le32( - jiffies - nes_read_indexed(nesdev, NES_IDX_TCP_NOW)); + jiffies - nes_read_indexed(nesdev, NES_IDX_TCP_NOW)); nesqp->nesqp_context->ird_index = cpu_to_le32(nesqp->hwqp.qp_id); nesqp->nesqp_context->ird_ord_sizes |= cpu_to_le32( - ((u32)1 << NES_QPCONTEXT_ORDIRD_IWARP_MODE_SHIFT)); - nesqp->nesqp_context->ird_ord_sizes |= cpu_to_le32((u32)conn_param->ord); + ((u32)1 << NES_QPCONTEXT_ORDIRD_IWARP_MODE_SHIFT)); + nesqp->nesqp_context->ird_ord_sizes |= + cpu_to_le32((u32)conn_param->ord); memset(&nes_quad, 0, sizeof(nes_quad)); - nes_quad.DstIpAdrIndex = cpu_to_le32((u32)PCI_FUNC(nesdev->pcidev->devfn) << 24); - nes_quad.SrcIpadr = cm_id->remote_addr.sin_addr.s_addr; - nes_quad.TcpPorts[0] = cm_id->remote_addr.sin_port; - nes_quad.TcpPorts[1] = cm_id->local_addr.sin_port; + nes_quad.DstIpAdrIndex = + cpu_to_le32((u32)PCI_FUNC(nesdev->pcidev->devfn) << 24); + if (ipv4_is_loopback(cm_id->remote_addr.sin_addr.s_addr)) + nes_quad.SrcIpadr = nesvnic->local_ipaddr; + else + nes_quad.SrcIpadr = cm_id->remote_addr.sin_addr.s_addr; + nes_quad.TcpPorts[0] = cm_id->remote_addr.sin_port; + nes_quad.TcpPorts[1] = cm_id->local_addr.sin_port; /* Produce hash key */ crc_value = get_crc_value(&nes_quad); nesqp->hte_index = cpu_to_be32(crc_value ^ 0xffffffff); nes_debug(NES_DBG_CM, "HTE Index = 0x%08X, CRC = 0x%08X\n", - nesqp->hte_index, nesqp->hte_index & adapter->hte_index_mask); + nesqp->hte_index, nesqp->hte_index & adapter->hte_index_mask); nesqp->hte_index &= adapter->hte_index_mask; nesqp->nesqp_context->hte_index = cpu_to_le32(nesqp->hte_index); cm_node->cm_core->api->accelerated(cm_node->cm_core, cm_node); - nes_debug(NES_DBG_CM, "QP%u, Destination IP = 0x%08X:0x%04X, local = 0x%08X:0x%04X," - " rcv_nxt=0x%08X, snd_nxt=0x%08X, mpa + private data length=%zu.\n", - nesqp->hwqp.qp_id, + nes_debug(NES_DBG_CM, "QP%u, Destination IP = 0x%08X:0x%04X, local = " + "0x%08X:0x%04X, rcv_nxt=0x%08X, snd_nxt=0x%08X, mpa + " + "private data length=%zu.\n", nesqp->hwqp.qp_id, ntohl(cm_id->remote_addr.sin_addr.s_addr), ntohs(cm_id->remote_addr.sin_port), ntohl(cm_id->local_addr.sin_addr.s_addr), ntohs(cm_id->local_addr.sin_port), le32_to_cpu(nesqp->nesqp_context->rcv_nxt), le32_to_cpu(nesqp->nesqp_context->snd_nxt), - conn_param->private_data_len+sizeof(struct ietf_mpa_frame)); + conn_param->private_data_len + + sizeof(struct ietf_mpa_frame)); attr.qp_state = IB_QPS_RTS; nes_modify_qp(&nesqp->ibqp, &attr, IB_QP_STATE, NULL); @@ -2489,15 +2715,16 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) cm_event.private_data_len = 0; ret = cm_id->event_handler(cm_id, &cm_event); if (cm_node->loopbackpartner) { - cm_node->loopbackpartner->mpa_frame_size = nesqp->private_data_len; + cm_node->loopbackpartner->mpa_frame_size = + nesqp->private_data_len; /* copy entire MPA frame to our cm_node's frame */ - memcpy(cm_node->loopbackpartner->mpa_frame_buf, nesqp->ietf_frame->priv_data, - nesqp->private_data_len); + memcpy(cm_node->loopbackpartner->mpa_frame_buf, + nesqp->ietf_frame->priv_data, nesqp->private_data_len); create_event(cm_node->loopbackpartner, NES_CM_EVENT_CONNECTED); } if (ret) - printk("%s[%u] OFA CM event_handler returned, ret=%d\n", - __func__, __LINE__, ret); + printk(KERN_ERR "%s[%u] OFA CM event_handler returned, " + "ret=%d\n", __func__, __LINE__, ret); return 0; } @@ -2555,74 +2782,61 @@ int nes_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) if (!nesdev) return -EINVAL; - atomic_inc(&cm_connects); - - nesqp->ietf_frame = kzalloc(sizeof(struct ietf_mpa_frame) + - conn_param->private_data_len, GFP_KERNEL); - if (!nesqp->ietf_frame) - return -ENOMEM; + nes_debug(NES_DBG_CM, "QP%u, current IP = 0x%08X, Destination IP = " + "0x%08X:0x%04X, local = 0x%08X:0x%04X.\n", nesqp->hwqp.qp_id, + ntohl(nesvnic->local_ipaddr), + ntohl(cm_id->remote_addr.sin_addr.s_addr), + ntohs(cm_id->remote_addr.sin_port), + ntohl(cm_id->local_addr.sin_addr.s_addr), + ntohs(cm_id->local_addr.sin_port)); - /* set qp as having an active connection */ + atomic_inc(&cm_connects); nesqp->active_conn = 1; - nes_debug(NES_DBG_CM, "QP%u, Destination IP = 0x%08X:0x%04X, local = 0x%08X:0x%04X.\n", - nesqp->hwqp.qp_id, - ntohl(cm_id->remote_addr.sin_addr.s_addr), - ntohs(cm_id->remote_addr.sin_port), - ntohl(cm_id->local_addr.sin_addr.s_addr), - ntohs(cm_id->local_addr.sin_port)); - /* cache the cm_id in the qp */ nesqp->cm_id = cm_id; cm_id->provider_data = nesqp; - /* copy the private data */ - if (conn_param->private_data_len) { - memcpy(nesqp->ietf_frame->priv_data, conn_param->private_data, - conn_param->private_data_len); - } - nesqp->private_data_len = conn_param->private_data_len; nesqp->nesqp_context->ird_ord_sizes |= cpu_to_le32((u32)conn_param->ord); nes_debug(NES_DBG_CM, "requested ord = 0x%08X.\n", (u32)conn_param->ord); - nes_debug(NES_DBG_CM, "mpa private data len =%u\n", conn_param->private_data_len); - - strcpy(&nesqp->ietf_frame->key[0], IEFT_MPA_KEY_REQ); - nesqp->ietf_frame->flags = IETF_MPA_FLAGS_CRC; - nesqp->ietf_frame->rev = IETF_MPA_VERSION; - nesqp->ietf_frame->priv_data_len = htons(conn_param->private_data_len); + nes_debug(NES_DBG_CM, "mpa private data len =%u\n", + conn_param->private_data_len); - if (cm_id->local_addr.sin_addr.s_addr != cm_id->remote_addr.sin_addr.s_addr) + if (cm_id->local_addr.sin_addr.s_addr != + cm_id->remote_addr.sin_addr.s_addr) nes_manage_apbvt(nesvnic, ntohs(cm_id->local_addr.sin_port), - PCI_FUNC(nesdev->pcidev->devfn), NES_MANAGE_APBVT_ADD); + PCI_FUNC(nesdev->pcidev->devfn), NES_MANAGE_APBVT_ADD); /* set up the connection params for the node */ - cm_info.loc_addr = (cm_id->local_addr.sin_addr.s_addr); - cm_info.loc_port = (cm_id->local_addr.sin_port); - cm_info.rem_addr = (cm_id->remote_addr.sin_addr.s_addr); - cm_info.rem_port = (cm_id->remote_addr.sin_port); + cm_info.loc_addr = htonl(cm_id->local_addr.sin_addr.s_addr); + cm_info.loc_port = htons(cm_id->local_addr.sin_port); + cm_info.rem_addr = htonl(cm_id->remote_addr.sin_addr.s_addr); + cm_info.rem_port = htons(cm_id->remote_addr.sin_port); cm_info.cm_id = cm_id; cm_info.conn_type = NES_CM_IWARP_CONN_TYPE; cm_id->add_ref(cm_id); - nes_add_ref(&nesqp->ibqp); /* create a connect CM node connection */ - cm_node = g_cm_core->api->connect(g_cm_core, nesvnic, nesqp->ietf_frame, &cm_info); + cm_node = g_cm_core->api->connect(g_cm_core, nesvnic, + conn_param->private_data_len, (void *)conn_param->private_data, + &cm_info); if (!cm_node) { - if (cm_id->local_addr.sin_addr.s_addr != cm_id->remote_addr.sin_addr.s_addr) + if (cm_id->local_addr.sin_addr.s_addr != + cm_id->remote_addr.sin_addr.s_addr) nes_manage_apbvt(nesvnic, ntohs(cm_id->local_addr.sin_port), - PCI_FUNC(nesdev->pcidev->devfn), NES_MANAGE_APBVT_DEL); - nes_rem_ref(&nesqp->ibqp); - kfree(nesqp->ietf_frame); - nesqp->ietf_frame = NULL; + PCI_FUNC(nesdev->pcidev->devfn), + NES_MANAGE_APBVT_DEL); + cm_id->rem_ref(cm_id); return -ENOMEM; } cm_node->apbvt_set = 1; nesqp->cm_node = cm_node; + cm_node->nesqp = nesqp; return 0; } @@ -2664,7 +2878,7 @@ int nes_create_listen(struct iw_cm_id *cm_id, int backlog) cm_node = g_cm_core->api->listen(g_cm_core, nesvnic, &cm_info); if (!cm_node) { - printk("%s[%u] Error returned from listen API call\n", + printk(KERN_ERR "%s[%u] Error returned from listen API call\n", __func__, __LINE__); return -ENOMEM; } @@ -2672,10 +2886,13 @@ int nes_create_listen(struct iw_cm_id *cm_id, int backlog) cm_id->provider_data = cm_node; if (!cm_node->reused_node) { - err = nes_manage_apbvt(nesvnic, ntohs(cm_id->local_addr.sin_port), - PCI_FUNC(nesvnic->nesdev->pcidev->devfn), NES_MANAGE_APBVT_ADD); + err = nes_manage_apbvt(nesvnic, + ntohs(cm_id->local_addr.sin_port), + PCI_FUNC(nesvnic->nesdev->pcidev->devfn), + NES_MANAGE_APBVT_ADD); if (err) { - printk("nes_manage_apbvt call returned %d.\n", err); + printk(KERN_ERR "nes_manage_apbvt call returned %d.\n", + err); g_cm_core->api->stop_listener(g_cm_core, (void *)cm_node); return err; } @@ -2795,53 +3012,70 @@ static void cm_event_connected(struct nes_cm_event *event) nes_cm_init_tsa_conn(nesqp, cm_node); /* set the QP tsa context */ - nesqp->nesqp_context->tcpPorts[0] = cpu_to_le16(ntohs(cm_id->local_addr.sin_port)); - nesqp->nesqp_context->tcpPorts[1] = cpu_to_le16(ntohs(cm_id->remote_addr.sin_port)); - nesqp->nesqp_context->ip0 = cpu_to_le32(ntohl(cm_id->remote_addr.sin_addr.s_addr)); + nesqp->nesqp_context->tcpPorts[0] = + cpu_to_le16(ntohs(cm_id->local_addr.sin_port)); + nesqp->nesqp_context->tcpPorts[1] = + cpu_to_le16(ntohs(cm_id->remote_addr.sin_port)); + if (ipv4_is_loopback(cm_id->remote_addr.sin_addr.s_addr)) + nesqp->nesqp_context->ip0 = + cpu_to_le32(ntohl(nesvnic->local_ipaddr)); + else + nesqp->nesqp_context->ip0 = + cpu_to_le32(ntohl(cm_id->remote_addr.sin_addr.s_addr)); nesqp->nesqp_context->misc2 |= cpu_to_le32( - (u32)PCI_FUNC(nesdev->pcidev->devfn) << NES_QPCONTEXT_MISC2_SRC_IP_SHIFT); + (u32)PCI_FUNC(nesdev->pcidev->devfn) << + NES_QPCONTEXT_MISC2_SRC_IP_SHIFT); nesqp->nesqp_context->arp_index_vlan |= cpu_to_le32( - nes_arp_table(nesdev, le32_to_cpu(nesqp->nesqp_context->ip0), + nes_arp_table(nesdev, + le32_to_cpu(nesqp->nesqp_context->ip0), NULL, NES_ARP_RESOLVE) << 16); nesqp->nesqp_context->ts_val_delta = cpu_to_le32( jiffies - nes_read_indexed(nesdev, NES_IDX_TCP_NOW)); nesqp->nesqp_context->ird_index = cpu_to_le32(nesqp->hwqp.qp_id); nesqp->nesqp_context->ird_ord_sizes |= - cpu_to_le32((u32)1 << NES_QPCONTEXT_ORDIRD_IWARP_MODE_SHIFT); + cpu_to_le32((u32)1 << + NES_QPCONTEXT_ORDIRD_IWARP_MODE_SHIFT); /* Adjust tail for not having a LSMM */ nesqp->hwqp.sq_tail = 1; #if defined(NES_SEND_FIRST_WRITE) - if (cm_node->send_write0) { - nes_debug(NES_DBG_CM, "Sending first write.\n"); - wqe = &nesqp->hwqp.sq_vbase[0]; - u64temp = (unsigned long)nesqp; - u64temp |= NES_SW_CONTEXT_ALIGN>>1; - set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_COMP_CTX_LOW_IDX, - u64temp); - wqe->wqe_words[NES_IWARP_SQ_WQE_MISC_IDX] = cpu_to_le32(NES_IWARP_SQ_OP_RDMAW); - wqe->wqe_words[NES_IWARP_SQ_WQE_TOTAL_PAYLOAD_IDX] = 0; - wqe->wqe_words[NES_IWARP_SQ_WQE_FRAG0_LOW_IDX] = 0; - wqe->wqe_words[NES_IWARP_SQ_WQE_FRAG0_HIGH_IDX] = 0; - wqe->wqe_words[NES_IWARP_SQ_WQE_LENGTH0_IDX] = 0; - wqe->wqe_words[NES_IWARP_SQ_WQE_STAG0_IDX] = 0; - - /* use the reserved spot on the WQ for the extra first WQE */ - nesqp->nesqp_context->ird_ord_sizes &= cpu_to_le32(~(NES_QPCONTEXT_ORDIRD_LSMM_PRESENT | - NES_QPCONTEXT_ORDIRD_WRPDU | NES_QPCONTEXT_ORDIRD_ALSMM)); - nesqp->skip_lsmm = 1; - nesqp->hwqp.sq_tail = 0; - nes_write32(nesdev->regs + NES_WQE_ALLOC, - (1 << 24) | 0x00800000 | nesqp->hwqp.qp_id); - } + if (cm_node->send_write0) { + nes_debug(NES_DBG_CM, "Sending first write.\n"); + wqe = &nesqp->hwqp.sq_vbase[0]; + u64temp = (unsigned long)nesqp; + u64temp |= NES_SW_CONTEXT_ALIGN>>1; + set_wqe_64bit_value(wqe->wqe_words, + NES_IWARP_SQ_WQE_COMP_CTX_LOW_IDX, u64temp); + wqe->wqe_words[NES_IWARP_SQ_WQE_MISC_IDX] = + cpu_to_le32(NES_IWARP_SQ_OP_RDMAW); + wqe->wqe_words[NES_IWARP_SQ_WQE_TOTAL_PAYLOAD_IDX] = 0; + wqe->wqe_words[NES_IWARP_SQ_WQE_FRAG0_LOW_IDX] = 0; + wqe->wqe_words[NES_IWARP_SQ_WQE_FRAG0_HIGH_IDX] = 0; + wqe->wqe_words[NES_IWARP_SQ_WQE_LENGTH0_IDX] = 0; + wqe->wqe_words[NES_IWARP_SQ_WQE_STAG0_IDX] = 0; + + /* use the reserved spot on the WQ for the extra first WQE */ + nesqp->nesqp_context->ird_ord_sizes &= + cpu_to_le32(~(NES_QPCONTEXT_ORDIRD_LSMM_PRESENT | + NES_QPCONTEXT_ORDIRD_WRPDU | + NES_QPCONTEXT_ORDIRD_ALSMM)); + nesqp->skip_lsmm = 1; + nesqp->hwqp.sq_tail = 0; + nes_write32(nesdev->regs + NES_WQE_ALLOC, + (1 << 24) | 0x00800000 | nesqp->hwqp.qp_id); + } #endif memset(&nes_quad, 0, sizeof(nes_quad)); - nes_quad.DstIpAdrIndex = cpu_to_le32((u32)PCI_FUNC(nesdev->pcidev->devfn) << 24); - nes_quad.SrcIpadr = cm_id->remote_addr.sin_addr.s_addr; + nes_quad.DstIpAdrIndex = + cpu_to_le32((u32)PCI_FUNC(nesdev->pcidev->devfn) << 24); + if (ipv4_is_loopback(cm_id->remote_addr.sin_addr.s_addr)) + nes_quad.SrcIpadr = nesvnic->local_ipaddr; + else + nes_quad.SrcIpadr = cm_id->remote_addr.sin_addr.s_addr; nes_quad.TcpPorts[0] = cm_id->remote_addr.sin_port; nes_quad.TcpPorts[1] = cm_id->local_addr.sin_port; @@ -2858,10 +3092,6 @@ static void cm_event_connected(struct nes_cm_event *event) nesqp->private_data_len = (u8) cm_node->mpa_frame_size; cm_node->cm_core->api->accelerated(cm_node->cm_core, cm_node); - /* modify QP state to rts */ - attr.qp_state = IB_QPS_RTS; - nes_modify_qp(&nesqp->ibqp, &attr, IB_QP_STATE, NULL); - /* notify OF layer we successfully created the requested connection */ cm_event.event = IW_CM_EVENT_CONNECT_REPLY; cm_event.status = IW_CM_EVENT_STATUS_ACCEPTED; @@ -2870,20 +3100,21 @@ static void cm_event_connected(struct nes_cm_event *event) cm_event.local_addr.sin_port = cm_id->local_addr.sin_port; cm_event.remote_addr = cm_id->remote_addr; - cm_event.private_data = (void *)event->cm_node->mpa_frame_buf; - cm_event.private_data_len = (u8) event->cm_node->mpa_frame_size; + cm_event.private_data = (void *)event->cm_node->mpa_frame_buf; + cm_event.private_data_len = (u8) event->cm_node->mpa_frame_size; cm_event.local_addr.sin_addr.s_addr = event->cm_info.rem_addr; ret = cm_id->event_handler(cm_id, &cm_event); nes_debug(NES_DBG_CM, "OFA CM event_handler returned, ret=%d\n", ret); if (ret) - printk("%s[%u] OFA CM event_handler returned, ret=%d\n", - __func__, __LINE__, ret); - nes_debug(NES_DBG_CM, "Exiting connect thread for QP%u. jiffies = %lu\n", - nesqp->hwqp.qp_id, jiffies ); + printk(KERN_ERR "%s[%u] OFA CM event_handler returned, " + "ret=%d\n", __func__, __LINE__, ret); + attr.qp_state = IB_QPS_RTS; + nes_modify_qp(&nesqp->ibqp, &attr, IB_QP_STATE, NULL); - nes_rem_ref(&nesqp->ibqp); + nes_debug(NES_DBG_CM, "Exiting connect thread for QP%u. jiffies = " + "%lu\n", nesqp->hwqp.qp_id, jiffies); return; } @@ -2927,17 +3158,19 @@ static void cm_event_connect_error(struct nes_cm_event *event) cm_event.private_data = NULL; cm_event.private_data_len = 0; - nes_debug(NES_DBG_CM, "call CM_EVENT REJECTED, local_addr=%08x, remove_addr=%08x\n", - cm_event.local_addr.sin_addr.s_addr, cm_event.remote_addr.sin_addr.s_addr); + nes_debug(NES_DBG_CM, "call CM_EVENT REJECTED, local_addr=%08x, " + "remove_addr=%08x\n", cm_event.local_addr.sin_addr.s_addr, + cm_event.remote_addr.sin_addr.s_addr); ret = cm_id->event_handler(cm_id, &cm_event); nes_debug(NES_DBG_CM, "OFA CM event_handler returned, ret=%d\n", ret); if (ret) - printk("%s[%u] OFA CM event_handler returned, ret=%d\n", - __func__, __LINE__, ret); + printk(KERN_ERR "%s[%u] OFA CM event_handler returned, " + "ret=%d\n", __func__, __LINE__, ret); nes_rem_ref(&nesqp->ibqp); - cm_id->rem_ref(cm_id); + cm_id->rem_ref(cm_id); + rem_ref_cm_node(event->cm_node->cm_core, event->cm_node); return; } @@ -3040,7 +3273,8 @@ static int nes_cm_post_event(struct nes_cm_event *event) add_ref_cm_node(event->cm_node); event->cm_info.cm_id->add_ref(event->cm_info.cm_id); INIT_WORK(&event->event_work, nes_cm_event_handler); - nes_debug(NES_DBG_CM, "queue_work, event=%p\n", event); + nes_debug(NES_DBG_CM, "cm_node=%p queue_work, event=%p\n", + event->cm_node, event); queue_work(event->cm_node->cm_core->event_wq, &event->event_work); @@ -3056,46 +3290,48 @@ static int nes_cm_post_event(struct nes_cm_event *event) */ static void nes_cm_event_handler(struct work_struct *work) { - struct nes_cm_event *event = container_of(work, struct nes_cm_event, event_work); + struct nes_cm_event *event = container_of(work, struct nes_cm_event, + event_work); struct nes_cm_core *cm_core; - if ((!event) || (!event->cm_node) || (!event->cm_node->cm_core)) { + if ((!event) || (!event->cm_node) || (!event->cm_node->cm_core)) return; - } + cm_core = event->cm_node->cm_core; nes_debug(NES_DBG_CM, "event=%p, event->type=%u, events posted=%u\n", - event, event->type, atomic_read(&cm_core->events_posted)); + event, event->type, atomic_read(&cm_core->events_posted)); switch (event->type) { - case NES_CM_EVENT_MPA_REQ: - cm_event_mpa_req(event); - nes_debug(NES_DBG_CM, "CM Event: MPA REQUEST\n"); - break; - case NES_CM_EVENT_RESET: - nes_debug(NES_DBG_CM, "CM Event: RESET\n"); - cm_event_reset(event); - break; - case NES_CM_EVENT_CONNECTED: - if ((!event->cm_node->cm_id) || - (event->cm_node->state != NES_CM_STATE_TSA)) { - break; - } - cm_event_connected(event); - nes_debug(NES_DBG_CM, "CM Event: CONNECTED\n"); + case NES_CM_EVENT_MPA_REQ: + cm_event_mpa_req(event); + nes_debug(NES_DBG_CM, "cm_node=%p CM Event: MPA REQUEST\n", + event->cm_node); + break; + case NES_CM_EVENT_RESET: + nes_debug(NES_DBG_CM, "cm_node = %p CM Event: RESET\n", + event->cm_node); + cm_event_reset(event); + break; + case NES_CM_EVENT_CONNECTED: + if ((!event->cm_node->cm_id) || + (event->cm_node->state != NES_CM_STATE_TSA)) break; - case NES_CM_EVENT_ABORTED: - if ((!event->cm_node->cm_id) || (event->cm_node->state == NES_CM_STATE_TSA)) { - break; - } - cm_event_connect_error(event); - nes_debug(NES_DBG_CM, "CM Event: ABORTED\n"); - break; - case NES_CM_EVENT_DROPPED_PKT: - nes_debug(NES_DBG_CM, "CM Event: DROPPED PKT\n"); - break; - default: - nes_debug(NES_DBG_CM, "CM Event: UNKNOWN EVENT TYPE\n"); + cm_event_connected(event); + nes_debug(NES_DBG_CM, "CM Event: CONNECTED\n"); + break; + case NES_CM_EVENT_ABORTED: + if ((!event->cm_node->cm_id) || + (event->cm_node->state == NES_CM_STATE_TSA)) break; + cm_event_connect_error(event); + nes_debug(NES_DBG_CM, "CM Event: ABORTED\n"); + break; + case NES_CM_EVENT_DROPPED_PKT: + nes_debug(NES_DBG_CM, "CM Event: DROPPED PKT\n"); + break; + default: + nes_debug(NES_DBG_CM, "CM Event: UNKNOWN EVENT TYPE\n"); + break; } atomic_dec(&cm_core->events_posted); diff --git a/drivers/infiniband/hw/nes/nes_cm.h b/drivers/infiniband/hw/nes/nes_cm.h index 7717cb2..367b3d2 100644 --- a/drivers/infiniband/hw/nes/nes_cm.h +++ b/drivers/infiniband/hw/nes/nes_cm.h @@ -83,6 +83,8 @@ enum nes_timer_type { #define SET_FIN 4 #define SET_RST 8 +#define TCP_OPTIONS_PADDING 3 + struct option_base { u8 optionnum; u8 length; @@ -177,6 +179,7 @@ enum nes_cm_node_state { NES_CM_STATE_ESTABLISHED, NES_CM_STATE_ACCEPTING, NES_CM_STATE_MPAREQ_SENT, + NES_CM_STATE_MPAREQ_RCVD, NES_CM_STATE_TSA, NES_CM_STATE_FIN_WAIT1, NES_CM_STATE_FIN_WAIT2, @@ -187,6 +190,16 @@ enum nes_cm_node_state { NES_CM_STATE_CLOSED }; +enum nes_tcpip_pkt_type { + NES_PKT_TYPE_UNKNOWN, + NES_PKT_TYPE_SYN, + NES_PKT_TYPE_SYNACK, + NES_PKT_TYPE_ACK, + NES_PKT_TYPE_FIN, + NES_PKT_TYPE_RST +}; + + /* type of nes connection */ enum nes_cm_conn_type { NES_CM_IWARP_CONN_TYPE, @@ -257,7 +270,9 @@ struct nes_cm_node { struct net_device *netdev; struct nes_cm_node *loopbackpartner; - struct list_head retrans_list; + + struct nes_timer_entry *send_entry; + spinlock_t retrans_list_lock; struct list_head recv_list; spinlock_t recv_list_lock; @@ -276,6 +291,8 @@ struct nes_cm_node { struct nes_vnic *nesvnic; int apbvt_set; int accept_pend; + int freed; + struct nes_qp *nesqp; }; /* structure for client or CM to fill when making CM api calls. */ @@ -366,14 +383,14 @@ struct nes_cm_ops { struct nes_cm_info *); int (*stop_listener)(struct nes_cm_core *, struct nes_cm_listener *); struct nes_cm_node * (*connect)(struct nes_cm_core *, - struct nes_vnic *, struct ietf_mpa_frame *, + struct nes_vnic *, u16, void *, struct nes_cm_info *); int (*close)(struct nes_cm_core *, struct nes_cm_node *); int (*accept)(struct nes_cm_core *, struct ietf_mpa_frame *, struct nes_cm_node *); int (*reject)(struct nes_cm_core *, struct ietf_mpa_frame *, struct nes_cm_node *); - int (*recv_pkt)(struct nes_cm_core *, struct nes_vnic *, + void (*recv_pkt)(struct nes_cm_core *, struct nes_vnic *, struct sk_buff *); int (*destroy_cm_core)(struct nes_cm_core *); int (*get)(struct nes_cm_core *); diff --git a/drivers/infiniband/hw/nes/nes_hw.c b/drivers/infiniband/hw/nes/nes_hw.c index 85f26d1..1513d40 100644 --- a/drivers/infiniband/hw/nes/nes_hw.c +++ b/drivers/infiniband/hw/nes/nes_hw.c @@ -2814,7 +2814,6 @@ static void nes_process_iwarp_aeqe(struct nes_device *nesdev, nesqp = *((struct nes_qp **)&context); if (atomic_inc_return(&nesqp->close_timer_started) == 1) { nesqp->cm_id->add_ref(nesqp->cm_id); - nes_add_ref(&nesqp->ibqp); schedule_nes_timer(nesqp->cm_node, (struct sk_buff *)nesqp, NES_TIMER_TYPE_CLOSE, 1, 0); nes_debug(NES_DBG_AEQ, "QP%u Not decrementing QP refcount (%d)," @@ -2838,7 +2837,6 @@ static void nes_process_iwarp_aeqe(struct nes_device *nesdev, if (async_event_id == NES_AEQE_AEID_RESET_SENT) { tcp_state = NES_AEQE_TCP_STATE_CLOSED; } - nes_add_ref(&nesqp->ibqp); spin_lock_irqsave(&nesqp->lock, flags); nesqp->hw_iwarp_state = iwarp_state; nesqp->hw_tcp_state = tcp_state; @@ -2876,7 +2874,6 @@ static void nes_process_iwarp_aeqe(struct nes_device *nesdev, } spin_unlock_irqrestore(&nesqp->lock, flags); if (next_iwarp_state) { - nes_add_ref(&nesqp->ibqp); nes_debug(NES_DBG_AEQ, "issuing hw modifyqp for QP%u. next state = 0x%08X," " also added another reference\n", nesqp->hwqp.qp_id, next_iwarp_state); @@ -2888,7 +2885,6 @@ static void nes_process_iwarp_aeqe(struct nes_device *nesdev, /* FIN Received but ib state not RTS, close complete will be on its way */ spin_unlock_irqrestore(&nesqp->lock, flags); - nes_rem_ref(&nesqp->ibqp); return; } spin_unlock_irqrestore(&nesqp->lock, flags); @@ -2922,7 +2918,6 @@ static void nes_process_iwarp_aeqe(struct nes_device *nesdev, if ((tcp_state == NES_AEQE_TCP_STATE_CLOSE_WAIT) || ((nesqp->ibqp_state == IB_QPS_RTS)&& (async_event_id == NES_AEQE_AEID_LLP_CONNECTION_RESET))) { - nes_add_ref(&nesqp->ibqp); nes_cm_disconn(nesqp); } else { nesqp->in_disconnect = 0; @@ -2931,7 +2926,6 @@ static void nes_process_iwarp_aeqe(struct nes_device *nesdev, break; case NES_AEQE_AEID_LLP_TOO_MANY_RETRIES: nesqp = *((struct nes_qp **)&context); - nes_add_ref(&nesqp->ibqp); spin_lock_irqsave(&nesqp->lock, flags); nesqp->hw_iwarp_state = NES_AEQE_IWARP_STATE_ERROR; nesqp->hw_tcp_state = NES_AEQE_TCP_STATE_CLOSED; @@ -3042,7 +3036,6 @@ static void nes_process_iwarp_aeqe(struct nes_device *nesdev, nesqp->ibqp.event_handler(&ibevent, nesqp->ibqp.qp_context); } /* tell cm to disconnect, cm will queue work to thread */ - nes_add_ref(&nesqp->ibqp); nes_cm_disconn(nesqp); break; case NES_AEQE_AEID_DDP_UBE_INVALID_MSN_NO_BUFFER_AVAILABLE: @@ -3062,7 +3055,6 @@ static void nes_process_iwarp_aeqe(struct nes_device *nesdev, nesqp->ibqp.event_handler(&ibevent, nesqp->ibqp.qp_context); } /* tell cm to disconnect, cm will queue work to thread */ - nes_add_ref(&nesqp->ibqp); nes_cm_disconn(nesqp); break; case NES_AEQE_AEID_LLP_RECEIVED_MPA_CRC_ERROR: @@ -3082,7 +3074,6 @@ static void nes_process_iwarp_aeqe(struct nes_device *nesdev, nesqp->ibqp.event_handler(&ibevent, nesqp->ibqp.qp_context); } /* tell cm to disconnect, cm will queue work to thread */ - nes_add_ref(&nesqp->ibqp); nes_cm_disconn(nesqp); break; /* TODO: additional AEs need to be here */ diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c index e3939d1..d79942e 100644 --- a/drivers/infiniband/hw/nes/nes_verbs.c +++ b/drivers/infiniband/hw/nes/nes_verbs.c @@ -2867,7 +2867,6 @@ int nes_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, nesqp->hwqp.qp_id, attr->qp_state, nesqp->ibqp_state, nesqp->iwarp_state, atomic_read(&nesqp->refcount)); - nes_add_ref(&nesqp->ibqp); spin_lock_irqsave(&nesqp->lock, qplockflags); nes_debug(NES_DBG_MOD_QP, "QP%u: hw_iwarp_state=0x%X, hw_tcp_state=0x%X," @@ -2882,7 +2881,6 @@ int nes_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, nesqp->hwqp.qp_id); if (nesqp->iwarp_state > (u32)NES_CQP_QP_IWARP_STATE_IDLE) { spin_unlock_irqrestore(&nesqp->lock, qplockflags); - nes_rem_ref(&nesqp->ibqp); return -EINVAL; } next_iwarp_state = NES_CQP_QP_IWARP_STATE_IDLE; @@ -2893,7 +2891,6 @@ int nes_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, nesqp->hwqp.qp_id); if (nesqp->iwarp_state>(u32)NES_CQP_QP_IWARP_STATE_IDLE) { spin_unlock_irqrestore(&nesqp->lock, qplockflags); - nes_rem_ref(&nesqp->ibqp); return -EINVAL; } next_iwarp_state = NES_CQP_QP_IWARP_STATE_IDLE; @@ -2904,14 +2901,12 @@ int nes_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, nesqp->hwqp.qp_id); if (nesqp->iwarp_state>(u32)NES_CQP_QP_IWARP_STATE_RTS) { spin_unlock_irqrestore(&nesqp->lock, qplockflags); - nes_rem_ref(&nesqp->ibqp); return -EINVAL; } if (nesqp->cm_id == NULL) { nes_debug(NES_DBG_MOD_QP, "QP%u: Failing attempt to move QP to RTS without a CM_ID. \n", nesqp->hwqp.qp_id ); spin_unlock_irqrestore(&nesqp->lock, qplockflags); - nes_rem_ref(&nesqp->ibqp); return -EINVAL; } next_iwarp_state = NES_CQP_QP_IWARP_STATE_RTS; @@ -2929,7 +2924,6 @@ int nes_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, nesqp->hwqp.qp_id, nesqp->hwqp.sq_head, nesqp->hwqp.sq_tail); if (nesqp->iwarp_state == (u32)NES_CQP_QP_IWARP_STATE_CLOSING) { spin_unlock_irqrestore(&nesqp->lock, qplockflags); - nes_rem_ref(&nesqp->ibqp); return 0; } else { if (nesqp->iwarp_state > (u32)NES_CQP_QP_IWARP_STATE_CLOSING) { @@ -2937,7 +2931,6 @@ int nes_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, " ignored due to current iWARP state\n", nesqp->hwqp.qp_id); spin_unlock_irqrestore(&nesqp->lock, qplockflags); - nes_rem_ref(&nesqp->ibqp); return -EINVAL; } if (nesqp->hw_iwarp_state != NES_AEQE_IWARP_STATE_RTS) { @@ -2969,7 +2962,6 @@ int nes_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, nesqp->hwqp.qp_id); if (nesqp->iwarp_state>=(u32)NES_CQP_QP_IWARP_STATE_TERMINATE) { spin_unlock_irqrestore(&nesqp->lock, qplockflags); - nes_rem_ref(&nesqp->ibqp); return -EINVAL; } /* next_iwarp_state = (NES_CQP_QP_IWARP_STATE_TERMINATE | 0x02000000); */ @@ -2982,7 +2974,6 @@ int nes_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, case IB_QPS_RESET: if (nesqp->iwarp_state == (u32)NES_CQP_QP_IWARP_STATE_ERROR) { spin_unlock_irqrestore(&nesqp->lock, qplockflags); - nes_rem_ref(&nesqp->ibqp); return -EINVAL; } nes_debug(NES_DBG_MOD_QP, "QP%u: new state = error\n", @@ -3008,7 +2999,6 @@ int nes_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, break; default: spin_unlock_irqrestore(&nesqp->lock, qplockflags); - nes_rem_ref(&nesqp->ibqp); return -EINVAL; break; } @@ -3088,7 +3078,6 @@ int nes_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, nesqp->hwqp.qp_id, atomic_read(&nesqp->refcount), original_last_aeq, nesqp->last_aeq); /* this one is for the cm_disconnect thread */ - nes_add_ref(&nesqp->ibqp); spin_lock_irqsave(&nesqp->lock, qplockflags); nesqp->hw_tcp_state = NES_AEQE_TCP_STATE_CLOSED; nesqp->last_aeq = NES_AEQE_AEID_RESET_SENT; @@ -3097,14 +3086,12 @@ int nes_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, } else { nes_debug(NES_DBG_MOD_QP, "QP%u No fake disconnect, QP refcount=%d\n", nesqp->hwqp.qp_id, atomic_read(&nesqp->refcount)); - nes_rem_ref(&nesqp->ibqp); } } else { spin_lock_irqsave(&nesqp->lock, qplockflags); if (nesqp->cm_id) { /* These two are for the timer thread */ if (atomic_inc_return(&nesqp->close_timer_started) == 1) { - nes_add_ref(&nesqp->ibqp); nesqp->cm_id->add_ref(nesqp->cm_id); nes_debug(NES_DBG_MOD_QP, "QP%u Not decrementing QP refcount (%d)," " need ae to finish up, original_last_aeq = 0x%04X." @@ -3128,14 +3115,12 @@ int nes_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, " original_last_aeq = 0x%04X. last_aeq = 0x%04X.\n", nesqp->hwqp.qp_id, atomic_read(&nesqp->refcount), original_last_aeq, nesqp->last_aeq); - nes_rem_ref(&nesqp->ibqp); } } else { nes_debug(NES_DBG_MOD_QP, "QP%u Decrementing QP refcount (%d), No ae to finish up," " original_last_aeq = 0x%04X. last_aeq = 0x%04X.\n", nesqp->hwqp.qp_id, atomic_read(&nesqp->refcount), original_last_aeq, nesqp->last_aeq); - nes_rem_ref(&nesqp->ibqp); } err = 0; diff --git a/drivers/infiniband/ulp/ipoib/Kconfig b/drivers/infiniband/ulp/ipoib/Kconfig index 691525c..9d9a9dc 100644 --- a/drivers/infiniband/ulp/ipoib/Kconfig +++ b/drivers/infiniband/ulp/ipoib/Kconfig @@ -11,16 +11,17 @@ config INFINIBAND_IPOIB config INFINIBAND_IPOIB_CM bool "IP-over-InfiniBand Connected Mode support" - depends on INFINIBAND_IPOIB && EXPERIMENTAL + depends on INFINIBAND_IPOIB default n ---help--- - This option enables experimental support for IPoIB connected mode. - After enabling this option, you need to switch to connected mode through - /sys/class/net/ibXXX/mode to actually create connections, and then increase - the interface MTU with e.g. ifconfig ib0 mtu 65520. + This option enables support for IPoIB connected mode. After + enabling this option, you need to switch to connected mode + through /sys/class/net/ibXXX/mode to actually create + connections, and then increase the interface MTU with + e.g. ifconfig ib0 mtu 65520. - WARNING: Enabling connected mode will trigger some - packet drops for multicast and UD mode traffic from this interface, + WARNING: Enabling connected mode will trigger some packet + drops for multicast and UD mode traffic from this interface, unless you limit mtu for these destinations to 2044. config INFINIBAND_IPOIB_DEBUG @@ -33,9 +34,10 @@ config INFINIBAND_IPOIB_DEBUG debug_level and mcast_debug_level module parameters (which can also be set after the driver is loaded through sysfs). - This option also creates an "ipoib_debugfs," which can be - mounted to expose debugging information about IB multicast - groups used by the IPoIB driver. + This option also creates a directory tree under ipoib/ in + debugfs, which contains files that expose debugging + information about IB multicast groups used by the IPoIB + driver. config INFINIBAND_IPOIB_DEBUG_DATA bool "IP-over-InfiniBand data path debugging" diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index 8be9ea0..f51201b 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -548,7 +548,7 @@ static int path_rec_start(struct net_device *dev, path_rec_completion, path, &path->query); if (path->query_id < 0) { - ipoib_warn(priv, "ib_sa_path_rec_get failed\n"); + ipoib_warn(priv, "ib_sa_path_rec_get failed: %d\n", path->query_id); path->query = NULL; return path->query_id; } diff --git a/drivers/infiniband/ulp/iser/iser_verbs.c b/drivers/infiniband/ulp/iser/iser_verbs.c index 3a917c1..63462ec 100644 --- a/drivers/infiniband/ulp/iser/iser_verbs.c +++ b/drivers/infiniband/ulp/iser/iser_verbs.c @@ -483,6 +483,7 @@ static int iser_cma_handler(struct rdma_cm_id *cma_id, struct rdma_cm_event *eve break; case RDMA_CM_EVENT_DISCONNECTED: case RDMA_CM_EVENT_DEVICE_REMOVAL: + case RDMA_CM_EVENT_ADDR_CHANGE: iser_disconnected_handler(cma_id); break; default: diff --git a/drivers/input/keyboard/hil_kbd.c b/drivers/input/keyboard/hil_kbd.c index adbf29f..71c1971 100644 --- a/drivers/input/keyboard/hil_kbd.c +++ b/drivers/input/keyboard/hil_kbd.c @@ -37,6 +37,7 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/init.h> +#include <linux/semaphore.h> #include <linux/slab.h> #include <linux/pci_ids.h> diff --git a/drivers/input/misc/hp_sdc_rtc.c b/drivers/input/misc/hp_sdc_rtc.c index 49d8abf..daa9d42 100644 --- a/drivers/input/misc/hp_sdc_rtc.c +++ b/drivers/input/misc/hp_sdc_rtc.c @@ -44,6 +44,7 @@ #include <linux/proc_fs.h> #include <linux/poll.h> #include <linux/rtc.h> +#include <linux/semaphore.h> MODULE_AUTHOR("Brian S. Julin <bri@calyx.com>"); MODULE_DESCRIPTION("HP i8042 SDC + MSM-58321 RTC Driver"); diff --git a/drivers/input/serio/hp_sdc.c b/drivers/input/serio/hp_sdc.c index 7b233a4..0d39597 100644 --- a/drivers/input/serio/hp_sdc.c +++ b/drivers/input/serio/hp_sdc.c @@ -67,9 +67,9 @@ #include <linux/module.h> #include <linux/ioport.h> #include <linux/time.h> +#include <linux/semaphore.h> #include <linux/slab.h> #include <linux/hil.h> -#include <linux/semaphore.h> #include <asm/io.h> #include <asm/system.h> diff --git a/drivers/isdn/Kconfig b/drivers/isdn/Kconfig index 66f946a..3d113c6 100644 --- a/drivers/isdn/Kconfig +++ b/drivers/isdn/Kconfig @@ -3,7 +3,7 @@ # menuconfig ISDN - tristate "ISDN support" + bool "ISDN support" depends on NET depends on !S390 ---help--- @@ -21,6 +21,8 @@ menuconfig ISDN if ISDN +source "drivers/isdn/mISDN/Kconfig" + menuconfig ISDN_I4L tristate "Old ISDN4Linux (deprecated)" ---help--- diff --git a/drivers/isdn/Makefile b/drivers/isdn/Makefile index 988142c..8380a45 100644 --- a/drivers/isdn/Makefile +++ b/drivers/isdn/Makefile @@ -4,6 +4,7 @@ obj-$(CONFIG_ISDN_I4L) += i4l/ obj-$(CONFIG_ISDN_CAPI) += capi/ +obj-$(CONFIG_MISDN) += mISDN/ obj-$(CONFIG_ISDN_CAPI) += hardware/ obj-$(CONFIG_ISDN_DIVERSION) += divert/ obj-$(CONFIG_ISDN_DRV_HISAX) += hisax/ diff --git a/drivers/isdn/gigaset/asyncdata.c b/drivers/isdn/gigaset/asyncdata.c index 091deb9..c2bd97d 100644 --- a/drivers/isdn/gigaset/asyncdata.c +++ b/drivers/isdn/gigaset/asyncdata.c @@ -575,7 +575,8 @@ int gigaset_m10x_send_skb(struct bc_state *bcs, struct sk_buff *skb) else skb = iraw_encode(skb, HW_HDR_LEN, 0); if (!skb) { - err("unable to allocate memory for encoding!\n"); + dev_err(bcs->cs->dev, + "unable to allocate memory for encoding!\n"); return -ENOMEM; } diff --git a/drivers/isdn/gigaset/bas-gigaset.c b/drivers/isdn/gigaset/bas-gigaset.c index 5255b5e..3f11910 100644 --- a/drivers/isdn/gigaset/bas-gigaset.c +++ b/drivers/isdn/gigaset/bas-gigaset.c @@ -1050,10 +1050,9 @@ static int submit_iso_write_urb(struct isow_urbctx_t *ucx) } /* retrieve block of data to send */ - ifd->offset = gigaset_isowbuf_getbytes(ubc->isooutbuf, - ifd->length); - if (ifd->offset < 0) { - if (ifd->offset == -EBUSY) { + rc = gigaset_isowbuf_getbytes(ubc->isooutbuf, ifd->length); + if (rc < 0) { + if (rc == -EBUSY) { gig_dbg(DEBUG_ISO, "%s: buffer busy at frame %d", __func__, nframe); @@ -1062,11 +1061,12 @@ static int submit_iso_write_urb(struct isow_urbctx_t *ucx) } else { dev_err(ucx->bcs->cs->dev, "%s: buffer error %d at frame %d\n", - __func__, ifd->offset, nframe); - return ifd->offset; + __func__, rc, nframe); + return rc; } break; } + ifd->offset = rc; ucx->limit = ubc->isooutbuf->nextread; ifd->status = 0; ifd->actual_length = 0; diff --git a/drivers/isdn/gigaset/common.c b/drivers/isdn/gigaset/common.c index 827c32c..9d3ce77 100644 --- a/drivers/isdn/gigaset/common.c +++ b/drivers/isdn/gigaset/common.c @@ -287,7 +287,7 @@ struct event_t *gigaset_add_event(struct cardstate *cs, tail = cs->ev_tail; next = (tail + 1) % MAX_EVENTS; if (unlikely(next == cs->ev_head)) - err("event queue full"); + dev_err(cs->dev, "event queue full\n"); else { event = cs->events + tail; event->type = type; diff --git a/drivers/isdn/gigaset/gigaset.h b/drivers/isdn/gigaset/gigaset.h index f365993..0037529 100644 --- a/drivers/isdn/gigaset/gigaset.h +++ b/drivers/isdn/gigaset/gigaset.h @@ -106,7 +106,6 @@ enum debuglevel { #undef err #undef info #undef warn -#undef notice #define err(format, arg...) printk(KERN_ERR KBUILD_MODNAME ": " \ format "\n" , ## arg) @@ -114,8 +113,6 @@ enum debuglevel { format "\n" , ## arg) #define warn(format, arg...) printk(KERN_WARNING KBUILD_MODNAME ": " \ format "\n" , ## arg) -#define notice(format, arg...) printk(KERN_NOTICE KBUILD_MODNAME ": " \ - format "\n" , ## arg) #ifdef CONFIG_GIGASET_DEBUG diff --git a/drivers/isdn/gigaset/i4l.c b/drivers/isdn/gigaset/i4l.c index 9e089f0..3c127a8 100644 --- a/drivers/isdn/gigaset/i4l.c +++ b/drivers/isdn/gigaset/i4l.c @@ -46,7 +46,8 @@ static int writebuf_from_LL(int driverID, int channel, int ack, return -ENODEV; } if (channel < 0 || channel >= cs->channels) { - err("%s: invalid channel ID (%d)", __func__, channel); + dev_err(cs->dev, "%s: invalid channel ID (%d)\n", + __func__, channel); return -ENODEV; } bcs = &cs->bcs[channel]; @@ -58,11 +59,13 @@ static int writebuf_from_LL(int driverID, int channel, int ack, if (!len) { if (ack) - notice("%s: not ACKing empty packet", __func__); + dev_notice(cs->dev, "%s: not ACKing empty packet\n", + __func__); return 0; } if (len > MAX_BUF_SIZE) { - err("%s: packet too large (%d bytes)", __func__, len); + dev_err(cs->dev, "%s: packet too large (%d bytes)\n", + __func__, len); return -EINVAL; } @@ -116,8 +119,7 @@ static int command_from_LL(isdn_ctrl *cntrl) gigaset_debugdrivers(); if (!cs) { - warn("LL tried to access unknown device with nr. %d", - cntrl->driver); + err("%s: invalid driver ID (%d)", __func__, cntrl->driver); return -ENODEV; } @@ -126,7 +128,7 @@ static int command_from_LL(isdn_ctrl *cntrl) gig_dbg(DEBUG_ANY, "ISDN_CMD_IOCTL (driver: %d, arg: %ld)", cntrl->driver, cntrl->arg); - warn("ISDN_CMD_IOCTL is not supported."); + dev_warn(cs->dev, "ISDN_CMD_IOCTL not supported\n"); return -EINVAL; case ISDN_CMD_DIAL: @@ -138,22 +140,23 @@ static int command_from_LL(isdn_ctrl *cntrl) cntrl->parm.setup.si1, cntrl->parm.setup.si2); if (cntrl->arg >= cs->channels) { - err("ISDN_CMD_DIAL: invalid channel (%d)", - (int) cntrl->arg); + dev_err(cs->dev, + "ISDN_CMD_DIAL: invalid channel (%d)\n", + (int) cntrl->arg); return -EINVAL; } bcs = cs->bcs + cntrl->arg; if (!gigaset_get_channel(bcs)) { - err("ISDN_CMD_DIAL: channel not free"); + dev_err(cs->dev, "ISDN_CMD_DIAL: channel not free\n"); return -EBUSY; } sp = kmalloc(sizeof *sp, GFP_ATOMIC); if (!sp) { gigaset_free_channel(bcs); - err("ISDN_CMD_DIAL: out of memory"); + dev_err(cs->dev, "ISDN_CMD_DIAL: out of memory\n"); return -ENOMEM; } *sp = cntrl->parm.setup; @@ -173,8 +176,9 @@ static int command_from_LL(isdn_ctrl *cntrl) gig_dbg(DEBUG_ANY, "ISDN_CMD_ACCEPTD"); if (cntrl->arg >= cs->channels) { - err("ISDN_CMD_ACCEPTD: invalid channel (%d)", - (int) cntrl->arg); + dev_err(cs->dev, + "ISDN_CMD_ACCEPTD: invalid channel (%d)\n", + (int) cntrl->arg); return -EINVAL; } @@ -196,8 +200,9 @@ static int command_from_LL(isdn_ctrl *cntrl) (int) cntrl->arg); if (cntrl->arg >= cs->channels) { - err("ISDN_CMD_HANGUP: invalid channel (%u)", - (unsigned) cntrl->arg); + dev_err(cs->dev, + "ISDN_CMD_HANGUP: invalid channel (%d)\n", + (int) cntrl->arg); return -EINVAL; } @@ -224,8 +229,9 @@ static int command_from_LL(isdn_ctrl *cntrl) cntrl->arg & 0xff, (cntrl->arg >> 8)); if ((cntrl->arg & 0xff) >= cs->channels) { - err("ISDN_CMD_SETL2: invalid channel (%u)", - (unsigned) cntrl->arg & 0xff); + dev_err(cs->dev, + "ISDN_CMD_SETL2: invalid channel (%d)\n", + (int) cntrl->arg & 0xff); return -EINVAL; } @@ -244,14 +250,16 @@ static int command_from_LL(isdn_ctrl *cntrl) cntrl->arg & 0xff, (cntrl->arg >> 8)); if ((cntrl->arg & 0xff) >= cs->channels) { - err("ISDN_CMD_SETL3: invalid channel (%u)", - (unsigned) cntrl->arg & 0xff); + dev_err(cs->dev, + "ISDN_CMD_SETL3: invalid channel (%d)\n", + (int) cntrl->arg & 0xff); return -EINVAL; } if (cntrl->arg >> 8 != ISDN_PROTO_L3_TRANS) { - err("ISDN_CMD_SETL3: invalid protocol %lu", - cntrl->arg >> 8); + dev_err(cs->dev, + "ISDN_CMD_SETL3: invalid protocol %lu\n", + cntrl->arg >> 8); return -EINVAL; } @@ -262,8 +270,9 @@ static int command_from_LL(isdn_ctrl *cntrl) case ISDN_CMD_ALERT: gig_dbg(DEBUG_ANY, "ISDN_CMD_ALERT"); //FIXME if (cntrl->arg >= cs->channels) { - err("ISDN_CMD_ALERT: invalid channel (%d)", - (int) cntrl->arg); + dev_err(cs->dev, + "ISDN_CMD_ALERT: invalid channel (%d)\n", + (int) cntrl->arg); return -EINVAL; } //bcs = cs->bcs + cntrl->arg; @@ -295,7 +304,8 @@ static int command_from_LL(isdn_ctrl *cntrl) gig_dbg(DEBUG_ANY, "ISDN_CMD_GETSIL"); break; default: - err("unknown command %d from LL", cntrl->command); + dev_err(cs->dev, "unknown command %d from LL\n", + cntrl->command); return -EINVAL; } diff --git a/drivers/isdn/gigaset/interface.c b/drivers/isdn/gigaset/interface.c index af195b0..521951a 100644 --- a/drivers/isdn/gigaset/interface.c +++ b/drivers/isdn/gigaset/interface.c @@ -197,7 +197,7 @@ static void if_close(struct tty_struct *tty, struct file *filp) mutex_lock(&cs->mutex); if (!cs->open_count) - warn("%s: device not opened", __func__); + dev_warn(cs->dev, "%s: device not opened\n", __func__); else { if (!--cs->open_count) { spin_lock_irqsave(&cs->lock, flags); @@ -232,7 +232,7 @@ static int if_ioctl(struct tty_struct *tty, struct file *file, return -ERESTARTSYS; // FIXME -EINTR? if (!cs->open_count) - warn("%s: device not opened", __func__); + dev_warn(cs->dev, "%s: device not opened\n", __func__); else { retval = 0; switch (cmd) { @@ -364,9 +364,9 @@ static int if_write(struct tty_struct *tty, const unsigned char *buf, int count) return -ERESTARTSYS; // FIXME -EINTR? if (!cs->open_count) - warn("%s: device not opened", __func__); + dev_warn(cs->dev, "%s: device not opened\n", __func__); else if (cs->mstate != MS_LOCKED) { - warn("can't write to unlocked device"); + dev_warn(cs->dev, "can't write to unlocked device\n"); retval = -EBUSY; } else if (!cs->connected) { gig_dbg(DEBUG_ANY, "can't write to unplugged device"); @@ -398,9 +398,9 @@ static int if_write_room(struct tty_struct *tty) return -ERESTARTSYS; // FIXME -EINTR? if (!cs->open_count) - warn("%s: device not opened", __func__); + dev_warn(cs->dev, "%s: device not opened\n", __func__); else if (cs->mstate != MS_LOCKED) { - warn("can't write to unlocked device"); + dev_warn(cs->dev, "can't write to unlocked device\n"); retval = -EBUSY; } else if (!cs->connected) { gig_dbg(DEBUG_ANY, "can't write to unplugged device"); @@ -430,9 +430,9 @@ static int if_chars_in_buffer(struct tty_struct *tty) return -ERESTARTSYS; // FIXME -EINTR? if (!cs->open_count) - warn("%s: device not opened", __func__); + dev_warn(cs->dev, "%s: device not opened\n", __func__); else if (cs->mstate != MS_LOCKED) { - warn("can't write to unlocked device"); + dev_warn(cs->dev, "can't write to unlocked device\n"); retval = -EBUSY; } else if (!cs->connected) { gig_dbg(DEBUG_ANY, "can't write to unplugged device"); @@ -460,7 +460,7 @@ static void if_throttle(struct tty_struct *tty) mutex_lock(&cs->mutex); if (!cs->open_count) - warn("%s: device not opened", __func__); + dev_warn(cs->dev, "%s: device not opened\n", __func__); else { //FIXME } @@ -483,7 +483,7 @@ static void if_unthrottle(struct tty_struct *tty) mutex_lock(&cs->mutex); if (!cs->open_count) - warn("%s: device not opened", __func__); + dev_warn(cs->dev, "%s: device not opened\n", __func__); else { //FIXME } @@ -510,7 +510,7 @@ static void if_set_termios(struct tty_struct *tty, struct ktermios *old) mutex_lock(&cs->mutex); if (!cs->open_count) { - warn("%s: device not opened", __func__); + dev_warn(cs->dev, "%s: device not opened\n", __func__); goto out; } @@ -623,7 +623,8 @@ void gigaset_if_init(struct cardstate *cs) if (!IS_ERR(cs->tty_dev)) dev_set_drvdata(cs->tty_dev, cs); else { - warn("could not register device to the tty subsystem"); + dev_warn(cs->dev, + "could not register device to the tty subsystem\n"); cs->tty_dev = NULL; } mutex_unlock(&cs->mutex); diff --git a/drivers/isdn/gigaset/usb-gigaset.c b/drivers/isdn/gigaset/usb-gigaset.c index 77d20ab..4661830 100644 --- a/drivers/isdn/gigaset/usb-gigaset.c +++ b/drivers/isdn/gigaset/usb-gigaset.c @@ -498,8 +498,9 @@ static int send_cb(struct cardstate *cs, struct cmdbuf_t *cb) if (status) { ucs->busy = 0; - err("could not submit urb (error %d)\n", - -status); + dev_err(cs->dev, + "could not submit urb (error %d)\n", + -status); cb->len = 0; /* skip urb => remove cb+wakeup in next loop cycle */ } @@ -670,7 +671,7 @@ static int write_modem(struct cardstate *cs) spin_unlock_irqrestore(&cs->lock, flags); if (ret) { - err("could not submit urb (error %d)\n", -ret); + dev_err(cs->dev, "could not submit urb (error %d)\n", -ret); ucs->busy = 0; } diff --git a/drivers/isdn/hardware/Makefile b/drivers/isdn/hardware/Makefile index 11c8a18..a5d8fce 100644 --- a/drivers/isdn/hardware/Makefile +++ b/drivers/isdn/hardware/Makefile @@ -4,3 +4,4 @@ obj-$(CONFIG_CAPI_AVM) += avm/ obj-$(CONFIG_CAPI_EICON) += eicon/ +obj-$(CONFIG_MISDN) += mISDN/ diff --git a/drivers/isdn/hardware/mISDN/Kconfig b/drivers/isdn/hardware/mISDN/Kconfig new file mode 100644 index 0000000..1479348 --- /dev/null +++ b/drivers/isdn/hardware/mISDN/Kconfig @@ -0,0 +1,25 @@ +# +# Hardware for mISDN +# +comment "mISDN hardware drivers" + +config MISDN_HFCPCI + tristate "Support for HFC PCI cards" + depends on MISDN + depends on PCI + help + Enable support for cards with Cologne Chip AG's + HFC PCI chip. + +config MISDN_HFCMULTI + tristate "Support for HFC multiport cards (HFC-4S/8S/E1)" + depends on PCI + depends on MISDN + help + Enable support for cards with Cologne Chip AG's HFC multiport + chip. There are three types of chips that are quite similar, + but the interface is different: + * HFC-4S (4 S/T interfaces on one chip) + * HFC-8S (8 S/T interfaces on one chip) + * HFC-E1 (E1 interface for 2Mbit ISDN) + diff --git a/drivers/isdn/hardware/mISDN/Makefile b/drivers/isdn/hardware/mISDN/Makefile new file mode 100644 index 0000000..1e7ca53 --- /dev/null +++ b/drivers/isdn/hardware/mISDN/Makefile @@ -0,0 +1,7 @@ +# +# Makefile for the modular ISDN hardware drivers +# +# + +obj-$(CONFIG_MISDN_HFCPCI) += hfcpci.o +obj-$(CONFIG_MISDN_HFCMULTI) += hfcmulti.o diff --git a/drivers/isdn/hardware/mISDN/hfc_multi.h b/drivers/isdn/hardware/mISDN/hfc_multi.h new file mode 100644 index 0000000..a33d87a --- /dev/null +++ b/drivers/isdn/hardware/mISDN/hfc_multi.h @@ -0,0 +1,1204 @@ +/* + * see notice in hfc_multi.c + */ + +extern void ztdummy_extern_interrupt(void); +extern void ztdummy_register_interrupt(void); +extern int ztdummy_unregister_interrupt(void); + +#define DEBUG_HFCMULTI_FIFO 0x00010000 +#define DEBUG_HFCMULTI_CRC 0x00020000 +#define DEBUG_HFCMULTI_INIT 0x00040000 +#define DEBUG_HFCMULTI_PLXSD 0x00080000 +#define DEBUG_HFCMULTI_MODE 0x00100000 +#define DEBUG_HFCMULTI_MSG 0x00200000 +#define DEBUG_HFCMULTI_STATE 0x00400000 +#define DEBUG_HFCMULTI_SYNC 0x01000000 +#define DEBUG_HFCMULTI_DTMF 0x02000000 +#define DEBUG_HFCMULTI_LOCK 0x80000000 + +#define PCI_ENA_REGIO 0x01 +#define PCI_ENA_MEMIO 0x02 + +/* + * NOTE: some registers are assigned multiple times due to different modes + * also registers are assigned differen for HFC-4s/8s and HFC-E1 + */ + +/* +#define MAX_FRAME_SIZE 2048 +*/ + +struct hfc_chan { + struct dchannel *dch; /* link if channel is a D-channel */ + struct bchannel *bch; /* link if channel is a B-channel */ + int port; /* the interface port this */ + /* channel is associated with */ + int nt_timer; /* -1 if off, 0 if elapsed, >0 if running */ + int los, ais, slip_tx, slip_rx, rdi; /* current alarms */ + int jitter; + u_long cfg; /* port configuration */ + int sync; /* sync state (used by E1) */ + u_int protocol; /* current protocol */ + int slot_tx; /* current pcm slot */ + int bank_tx; /* current pcm bank */ + int slot_rx; + int bank_rx; + int conf; /* conference setting of TX slot */ + int txpending; /* if there is currently data in */ + /* the FIFO 0=no, 1=yes, 2=splloop */ + int rx_off; /* set to turn fifo receive off */ + int coeff_count; /* curren coeff block */ + s32 *coeff; /* memory pointer to 8 coeff blocks */ +}; + + +struct hfcm_hw { + u_char r_ctrl; + u_char r_irq_ctrl; + u_char r_cirm; + u_char r_ram_sz; + u_char r_pcm_md0; + u_char r_irqmsk_misc; + u_char r_dtmf; + u_char r_st_sync; + u_char r_sci_msk; + u_char r_tx0, r_tx1; + u_char a_st_ctrl0[8]; + timer_t timer; +}; + + +/* for each stack these flags are used (cfg) */ +#define HFC_CFG_NONCAP_TX 1 /* S/T TX interface has less capacity */ +#define HFC_CFG_DIS_ECHANNEL 2 /* disable E-channel processing */ +#define HFC_CFG_REG_ECHANNEL 3 /* register E-channel */ +#define HFC_CFG_OPTICAL 4 /* the E1 interface is optical */ +#define HFC_CFG_REPORT_LOS 5 /* the card should report loss of signal */ +#define HFC_CFG_REPORT_AIS 6 /* the card should report alarm ind. sign. */ +#define HFC_CFG_REPORT_SLIP 7 /* the card should report bit slips */ +#define HFC_CFG_REPORT_RDI 8 /* the card should report remote alarm */ +#define HFC_CFG_DTMF 9 /* enable DTMF-detection */ +#define HFC_CFG_CRC4 10 /* disable CRC-4 Multiframe mode, */ + /* use double frame instead. */ + +#define HFC_CHIP_EXRAM_128 0 /* external ram 128k */ +#define HFC_CHIP_EXRAM_512 1 /* external ram 256k */ +#define HFC_CHIP_REVISION0 2 /* old fifo handling */ +#define HFC_CHIP_PCM_SLAVE 3 /* PCM is slave */ +#define HFC_CHIP_PCM_MASTER 4 /* PCM is master */ +#define HFC_CHIP_RX_SYNC 5 /* disable pll sync for pcm */ +#define HFC_CHIP_DTMF 6 /* DTMF decoding is enabled */ +#define HFC_CHIP_ULAW 7 /* ULAW mode */ +#define HFC_CHIP_CLOCK2 8 /* double clock mode */ +#define HFC_CHIP_E1CLOCK_GET 9 /* always get clock from E1 interface */ +#define HFC_CHIP_E1CLOCK_PUT 10 /* always put clock from E1 interface */ +#define HFC_CHIP_WATCHDOG 11 /* whether we should send signals */ + /* to the watchdog */ +#define HFC_CHIP_B410P 12 /* whether we have a b410p with echocan in */ + /* hw */ +#define HFC_CHIP_PLXSD 13 /* whether we have a Speech-Design PLX */ + +#define HFC_IO_MODE_PCIMEM 0x00 /* normal memory mapped IO */ +#define HFC_IO_MODE_REGIO 0x01 /* PCI io access */ +#define HFC_IO_MODE_PLXSD 0x02 /* access HFC via PLX9030 */ + +/* table entry in the PCI devices list */ +struct hm_map { + char *vendor_name; + char *card_name; + int type; + int ports; + int clock2; + int leds; + int opticalsupport; + int dip_type; + int io_mode; +}; + +struct hfc_multi { + struct list_head list; + struct hm_map *mtyp; + int id; + int pcm; /* id of pcm bus */ + int type; + int ports; + + u_int irq; /* irq used by card */ + u_int irqcnt; + struct pci_dev *pci_dev; + int io_mode; /* selects mode */ +#ifdef HFC_REGISTER_DEBUG + void (*HFC_outb)(struct hfc_multi *hc, u_char reg, + u_char val, const char *function, int line); + void (*HFC_outb_nodebug)(struct hfc_multi *hc, u_char reg, + u_char val, const char *function, int line); + u_char (*HFC_inb)(struct hfc_multi *hc, u_char reg, + const char *function, int line); + u_char (*HFC_inb_nodebug)(struct hfc_multi *hc, u_char reg, + const char *function, int line); + u_short (*HFC_inw)(struct hfc_multi *hc, u_char reg, + const char *function, int line); + u_short (*HFC_inw_nodebug)(struct hfc_multi *hc, u_char reg, + const char *function, int line); + void (*HFC_wait)(struct hfc_multi *hc, + const char *function, int line); + void (*HFC_wait_nodebug)(struct hfc_multi *hc, + const char *function, int line); +#else + void (*HFC_outb)(struct hfc_multi *hc, u_char reg, + u_char val); + void (*HFC_outb_nodebug)(struct hfc_multi *hc, u_char reg, + u_char val); + u_char (*HFC_inb)(struct hfc_multi *hc, u_char reg); + u_char (*HFC_inb_nodebug)(struct hfc_multi *hc, u_char reg); + u_short (*HFC_inw)(struct hfc_multi *hc, u_char reg); + u_short (*HFC_inw_nodebug)(struct hfc_multi *hc, u_char reg); + void (*HFC_wait)(struct hfc_multi *hc); + void (*HFC_wait_nodebug)(struct hfc_multi *hc); +#endif + void (*read_fifo)(struct hfc_multi *hc, u_char *data, + int len); + void (*write_fifo)(struct hfc_multi *hc, u_char *data, + int len); + u_long pci_origmembase, plx_origmembase, dsp_origmembase; + u_char *pci_membase; /* PCI memory (MUST BE BYTE POINTER) */ + u_char *plx_membase; /* PLX memory */ + u_char *dsp_membase; /* DSP on PLX */ + u_long pci_iobase; /* PCI IO */ + struct hfcm_hw hw; /* remember data of write-only-registers */ + + u_long chip; /* chip configuration */ + int masterclk; /* port that provides master clock -1=off */ + int dtmf; /* flag that dtmf is currently in process */ + int Flen; /* F-buffer size */ + int Zlen; /* Z-buffer size (must be int for calculation)*/ + int max_trans; /* maximum transparent fifo fill */ + int Zmin; /* Z-buffer offset */ + int DTMFbase; /* base address of DTMF coefficients */ + + u_int slots; /* number of PCM slots */ + u_int leds; /* type of leds */ + u_int ledcount; /* used to animate leds */ + u_long ledstate; /* save last state of leds */ + int opticalsupport; /* has the e1 board */ + /* an optical Interface */ + int dslot; /* channel # of d-channel (E1) default 16 */ + + u_long wdcount; /* every 500 ms we need to */ + /* send the watchdog a signal */ + u_char wdbyte; /* watchdog toggle byte */ + u_int activity[8]; /* if there is any action on this */ + /* port (will be cleared after */ + /* showing led-states) */ + int e1_state; /* keep track of last state */ + int e1_getclock; /* if sync is retrieved from interface */ + int syncronized; /* keep track of existing sync interface */ + int e1_resync; /* resync jobs */ + + spinlock_t lock; /* the lock */ + + /* + * the channel index is counted from 0, regardless where the channel + * is located on the hfc-channel. + * the bch->channel is equvalent to the hfc-channel + */ + struct hfc_chan chan[32]; + u_char created[8]; /* what port is created */ + signed char slot_owner[256]; /* owner channel of slot */ +}; + +/* PLX GPIOs */ +#define PLX_GPIO4_DIR_BIT 13 +#define PLX_GPIO4_BIT 14 +#define PLX_GPIO5_DIR_BIT 16 +#define PLX_GPIO5_BIT 17 +#define PLX_GPIO6_DIR_BIT 19 +#define PLX_GPIO6_BIT 20 +#define PLX_GPIO7_DIR_BIT 22 +#define PLX_GPIO7_BIT 23 +#define PLX_GPIO8_DIR_BIT 25 +#define PLX_GPIO8_BIT 26 + +#define PLX_GPIO4 (1 << PLX_GPIO4_BIT) +#define PLX_GPIO5 (1 << PLX_GPIO5_BIT) +#define PLX_GPIO6 (1 << PLX_GPIO6_BIT) +#define PLX_GPIO7 (1 << PLX_GPIO7_BIT) +#define PLX_GPIO8 (1 << PLX_GPIO8_BIT) + +#define PLX_GPIO4_DIR (1 << PLX_GPIO4_DIR_BIT) +#define PLX_GPIO5_DIR (1 << PLX_GPIO5_DIR_BIT) +#define PLX_GPIO6_DIR (1 << PLX_GPIO6_DIR_BIT) +#define PLX_GPIO7_DIR (1 << PLX_GPIO7_DIR_BIT) +#define PLX_GPIO8_DIR (1 << PLX_GPIO8_DIR_BIT) + +#define PLX_TERM_ON PLX_GPIO7 +#define PLX_SLAVE_EN_N PLX_GPIO5 +#define PLX_MASTER_EN PLX_GPIO6 +#define PLX_SYNC_O_EN PLX_GPIO4 +#define PLX_DSP_RES_N PLX_GPIO8 +/* GPIO4..8 Enable & Set to OUT, SLAVE_EN_N = 1 */ +#define PLX_GPIOC_INIT (PLX_GPIO4_DIR | PLX_GPIO5_DIR | PLX_GPIO6_DIR \ + | PLX_GPIO7_DIR | PLX_GPIO8_DIR | PLX_SLAVE_EN_N) + +/* PLX Interrupt Control/STATUS */ +#define PLX_INTCSR_LINTI1_ENABLE 0x01 +#define PLX_INTCSR_LINTI1_STATUS 0x04 +#define PLX_INTCSR_LINTI2_ENABLE 0x08 +#define PLX_INTCSR_LINTI2_STATUS 0x20 +#define PLX_INTCSR_PCIINT_ENABLE 0x40 + +/* PLX Registers */ +#define PLX_INTCSR 0x4c +#define PLX_CNTRL 0x50 +#define PLX_GPIOC 0x54 + + +/* + * REGISTER SETTING FOR HFC-4S/8S AND HFC-E1 + */ + +/* write only registers */ +#define R_CIRM 0x00 +#define R_CTRL 0x01 +#define R_BRG_PCM_CFG 0x02 +#define R_RAM_ADDR0 0x08 +#define R_RAM_ADDR1 0x09 +#define R_RAM_ADDR2 0x0A +#define R_FIRST_FIFO 0x0B +#define R_RAM_SZ 0x0C +#define R_FIFO_MD 0x0D +#define R_INC_RES_FIFO 0x0E +#define R_FSM_IDX 0x0F +#define R_FIFO 0x0F +#define R_SLOT 0x10 +#define R_IRQMSK_MISC 0x11 +#define R_SCI_MSK 0x12 +#define R_IRQ_CTRL 0x13 +#define R_PCM_MD0 0x14 +#define R_PCM_MD1 0x15 +#define R_PCM_MD2 0x15 +#define R_SH0H 0x15 +#define R_SH1H 0x15 +#define R_SH0L 0x15 +#define R_SH1L 0x15 +#define R_SL_SEL0 0x15 +#define R_SL_SEL1 0x15 +#define R_SL_SEL2 0x15 +#define R_SL_SEL3 0x15 +#define R_SL_SEL4 0x15 +#define R_SL_SEL5 0x15 +#define R_SL_SEL6 0x15 +#define R_SL_SEL7 0x15 +#define R_ST_SEL 0x16 +#define R_ST_SYNC 0x17 +#define R_CONF_EN 0x18 +#define R_TI_WD 0x1A +#define R_BERT_WD_MD 0x1B +#define R_DTMF 0x1C +#define R_DTMF_N 0x1D +#define R_E1_WR_STA 0x20 +#define R_E1_RD_STA 0x20 +#define R_LOS0 0x22 +#define R_LOS1 0x23 +#define R_RX0 0x24 +#define R_RX_FR0 0x25 +#define R_RX_FR1 0x26 +#define R_TX0 0x28 +#define R_TX1 0x29 +#define R_TX_FR0 0x2C + +#define R_TX_FR1 0x2D +#define R_TX_FR2 0x2E +#define R_JATT_ATT 0x2F /* undocumented */ +#define A_ST_RD_STATE 0x30 +#define A_ST_WR_STATE 0x30 +#define R_RX_OFF 0x30 +#define A_ST_CTRL0 0x31 +#define R_SYNC_OUT 0x31 +#define A_ST_CTRL1 0x32 +#define A_ST_CTRL2 0x33 +#define A_ST_SQ_WR 0x34 +#define R_TX_OFF 0x34 +#define R_SYNC_CTRL 0x35 +#define A_ST_CLK_DLY 0x37 +#define R_PWM0 0x38 +#define R_PWM1 0x39 +#define A_ST_B1_TX 0x3C +#define A_ST_B2_TX 0x3D +#define A_ST_D_TX 0x3E +#define R_GPIO_OUT0 0x40 +#define R_GPIO_OUT1 0x41 +#define R_GPIO_EN0 0x42 +#define R_GPIO_EN1 0x43 +#define R_GPIO_SEL 0x44 +#define R_BRG_CTRL 0x45 +#define R_PWM_MD 0x46 +#define R_BRG_MD 0x47 +#define R_BRG_TIM0 0x48 +#define R_BRG_TIM1 0x49 +#define R_BRG_TIM2 0x4A +#define R_BRG_TIM3 0x4B +#define R_BRG_TIM_SEL01 0x4C +#define R_BRG_TIM_SEL23 0x4D +#define R_BRG_TIM_SEL45 0x4E +#define R_BRG_TIM_SEL67 0x4F +#define A_SL_CFG 0xD0 +#define A_CONF 0xD1 +#define A_CH_MSK 0xF4 +#define A_CON_HDLC 0xFA +#define A_SUBCH_CFG 0xFB +#define A_CHANNEL 0xFC +#define A_FIFO_SEQ 0xFD +#define A_IRQ_MSK 0xFF + +/* read only registers */ +#define A_Z12 0x04 +#define A_Z1L 0x04 +#define A_Z1 0x04 +#define A_Z1H 0x05 +#define A_Z2L 0x06 +#define A_Z2 0x06 +#define A_Z2H 0x07 +#define A_F1 0x0C +#define A_F12 0x0C +#define A_F2 0x0D +#define R_IRQ_OVIEW 0x10 +#define R_IRQ_MISC 0x11 +#define R_IRQ_STATECH 0x12 +#define R_CONF_OFLOW 0x14 +#define R_RAM_USE 0x15 +#define R_CHIP_ID 0x16 +#define R_BERT_STA 0x17 +#define R_F0_CNTL 0x18 +#define R_F0_CNTH 0x19 +#define R_BERT_EC 0x1A +#define R_BERT_ECL 0x1A +#define R_BERT_ECH 0x1B +#define R_STATUS 0x1C +#define R_CHIP_RV 0x1F +#define R_STATE 0x20 +#define R_SYNC_STA 0x24 +#define R_RX_SL0_0 0x25 +#define R_RX_SL0_1 0x26 +#define R_RX_SL0_2 0x27 +#define R_JATT_DIR 0x2b /* undocumented */ +#define R_SLIP 0x2c +#define A_ST_RD_STA 0x30 +#define R_FAS_EC 0x30 +#define R_FAS_ECL 0x30 +#define R_FAS_ECH 0x31 +#define R_VIO_EC 0x32 +#define R_VIO_ECL 0x32 +#define R_VIO_ECH 0x33 +#define A_ST_SQ_RD 0x34 +#define R_CRC_EC 0x34 +#define R_CRC_ECL 0x34 +#define R_CRC_ECH 0x35 +#define R_E_EC 0x36 +#define R_E_ECL 0x36 +#define R_E_ECH 0x37 +#define R_SA6_SA13_EC 0x38 +#define R_SA6_SA13_ECL 0x38 +#define R_SA6_SA13_ECH 0x39 +#define R_SA6_SA23_EC 0x3A +#define R_SA6_SA23_ECL 0x3A +#define R_SA6_SA23_ECH 0x3B +#define A_ST_B1_RX 0x3C +#define A_ST_B2_RX 0x3D +#define A_ST_D_RX 0x3E +#define A_ST_E_RX 0x3F +#define R_GPIO_IN0 0x40 +#define R_GPIO_IN1 0x41 +#define R_GPI_IN0 0x44 +#define R_GPI_IN1 0x45 +#define R_GPI_IN2 0x46 +#define R_GPI_IN3 0x47 +#define R_INT_DATA 0x88 +#define R_IRQ_FIFO_BL0 0xC8 +#define R_IRQ_FIFO_BL1 0xC9 +#define R_IRQ_FIFO_BL2 0xCA +#define R_IRQ_FIFO_BL3 0xCB +#define R_IRQ_FIFO_BL4 0xCC +#define R_IRQ_FIFO_BL5 0xCD +#define R_IRQ_FIFO_BL6 0xCE +#define R_IRQ_FIFO_BL7 0xCF + +/* read and write registers */ +#define A_FIFO_DATA0 0x80 +#define A_FIFO_DATA1 0x80 +#define A_FIFO_DATA2 0x80 +#define A_FIFO_DATA0_NOINC 0x84 +#define A_FIFO_DATA1_NOINC 0x84 +#define A_FIFO_DATA2_NOINC 0x84 +#define R_RAM_DATA 0xC0 + + +/* + * BIT SETTING FOR HFC-4S/8S AND HFC-E1 + */ + +/* chapter 2: universal bus interface */ +/* R_CIRM */ +#define V_IRQ_SEL 0x01 +#define V_SRES 0x08 +#define V_HFCRES 0x10 +#define V_PCMRES 0x20 +#define V_STRES 0x40 +#define V_ETRES 0x40 +#define V_RLD_EPR 0x80 +/* R_CTRL */ +#define V_FIFO_LPRIO 0x02 +#define V_SLOW_RD 0x04 +#define V_EXT_RAM 0x08 +#define V_CLK_OFF 0x20 +#define V_ST_CLK 0x40 +/* R_RAM_ADDR0 */ +#define V_RAM_ADDR2 0x01 +#define V_ADDR_RES 0x40 +#define V_ADDR_INC 0x80 +/* R_RAM_SZ */ +#define V_RAM_SZ 0x01 +#define V_PWM0_16KHZ 0x10 +#define V_PWM1_16KHZ 0x20 +#define V_FZ_MD 0x80 +/* R_CHIP_ID */ +#define V_PNP_IRQ 0x01 +#define V_CHIP_ID 0x10 + +/* chapter 3: data flow */ +/* R_FIRST_FIFO */ +#define V_FIRST_FIRO_DIR 0x01 +#define V_FIRST_FIFO_NUM 0x02 +/* R_FIFO_MD */ +#define V_FIFO_MD 0x01 +#define V_CSM_MD 0x04 +#define V_FSM_MD 0x08 +#define V_FIFO_SZ 0x10 +/* R_FIFO */ +#define V_FIFO_DIR 0x01 +#define V_FIFO_NUM 0x02 +#define V_REV 0x80 +/* R_SLOT */ +#define V_SL_DIR 0x01 +#define V_SL_NUM 0x02 +/* A_SL_CFG */ +#define V_CH_DIR 0x01 +#define V_CH_SEL 0x02 +#define V_ROUTING 0x40 +/* A_CON_HDLC */ +#define V_IFF 0x01 +#define V_HDLC_TRP 0x02 +#define V_TRP_IRQ 0x04 +#define V_DATA_FLOW 0x20 +/* A_SUBCH_CFG */ +#define V_BIT_CNT 0x01 +#define V_START_BIT 0x08 +#define V_LOOP_FIFO 0x40 +#define V_INV_DATA 0x80 +/* A_CHANNEL */ +#define V_CH_DIR0 0x01 +#define V_CH_NUM0 0x02 +/* A_FIFO_SEQ */ +#define V_NEXT_FIFO_DIR 0x01 +#define V_NEXT_FIFO_NUM 0x02 +#define V_SEQ_END 0x40 + +/* chapter 4: FIFO handling and HDLC controller */ +/* R_INC_RES_FIFO */ +#define V_INC_F 0x01 +#define V_RES_F 0x02 +#define V_RES_LOST 0x04 + +/* chapter 5: S/T interface */ +/* R_SCI_MSK */ +#define V_SCI_MSK_ST0 0x01 +#define V_SCI_MSK_ST1 0x02 +#define V_SCI_MSK_ST2 0x04 +#define V_SCI_MSK_ST3 0x08 +#define V_SCI_MSK_ST4 0x10 +#define V_SCI_MSK_ST5 0x20 +#define V_SCI_MSK_ST6 0x40 +#define V_SCI_MSK_ST7 0x80 +/* R_ST_SEL */ +#define V_ST_SEL 0x01 +#define V_MULT_ST 0x08 +/* R_ST_SYNC */ +#define V_SYNC_SEL 0x01 +#define V_AUTO_SYNC 0x08 +/* A_ST_WR_STA */ +#define V_ST_SET_STA 0x01 +#define V_ST_LD_STA 0x10 +#define V_ST_ACT 0x20 +#define V_SET_G2_G3 0x80 +/* A_ST_CTRL0 */ +#define V_B1_EN 0x01 +#define V_B2_EN 0x02 +#define V_ST_MD 0x04 +#define V_D_PRIO 0x08 +#define V_SQ_EN 0x10 +#define V_96KHZ 0x20 +#define V_TX_LI 0x40 +#define V_ST_STOP 0x80 +/* A_ST_CTRL1 */ +#define V_G2_G3_EN 0x01 +#define V_D_HI 0x04 +#define V_E_IGNO 0x08 +#define V_E_LO 0x10 +#define V_B12_SWAP 0x80 +/* A_ST_CTRL2 */ +#define V_B1_RX_EN 0x01 +#define V_B2_RX_EN 0x02 +#define V_ST_TRIS 0x40 +/* A_ST_CLK_DLY */ +#define V_ST_CK_DLY 0x01 +#define V_ST_SMPL 0x10 +/* A_ST_D_TX */ +#define V_ST_D_TX 0x40 +/* R_IRQ_STATECH */ +#define V_SCI_ST0 0x01 +#define V_SCI_ST1 0x02 +#define V_SCI_ST2 0x04 +#define V_SCI_ST3 0x08 +#define V_SCI_ST4 0x10 +#define V_SCI_ST5 0x20 +#define V_SCI_ST6 0x40 +#define V_SCI_ST7 0x80 +/* A_ST_RD_STA */ +#define V_ST_STA 0x01 +#define V_FR_SYNC_ST 0x10 +#define V_TI2_EXP 0x20 +#define V_INFO0 0x40 +#define V_G2_G3 0x80 +/* A_ST_SQ_RD */ +#define V_ST_SQ 0x01 +#define V_MF_RX_RDY 0x10 +#define V_MF_TX_RDY 0x80 +/* A_ST_D_RX */ +#define V_ST_D_RX 0x40 +/* A_ST_E_RX */ +#define V_ST_E_RX 0x40 + +/* chapter 5: E1 interface */ +/* R_E1_WR_STA */ +/* R_E1_RD_STA */ +#define V_E1_SET_STA 0x01 +#define V_E1_LD_STA 0x10 +/* R_RX0 */ +#define V_RX_CODE 0x01 +#define V_RX_FBAUD 0x04 +#define V_RX_CMI 0x08 +#define V_RX_INV_CMI 0x10 +#define V_RX_INV_CLK 0x20 +#define V_RX_INV_DATA 0x40 +#define V_AIS_ITU 0x80 +/* R_RX_FR0 */ +#define V_NO_INSYNC 0x01 +#define V_AUTO_RESYNC 0x02 +#define V_AUTO_RECO 0x04 +#define V_SWORD_COND 0x08 +#define V_SYNC_LOSS 0x10 +#define V_XCRC_SYNC 0x20 +#define V_MF_RESYNC 0x40 +#define V_RESYNC 0x80 +/* R_RX_FR1 */ +#define V_RX_MF 0x01 +#define V_RX_MF_SYNC 0x02 +#define V_RX_SL0_RAM 0x04 +#define V_ERR_SIM 0x20 +#define V_RES_NMF 0x40 +/* R_TX0 */ +#define V_TX_CODE 0x01 +#define V_TX_FBAUD 0x04 +#define V_TX_CMI_CODE 0x08 +#define V_TX_INV_CMI_CODE 0x10 +#define V_TX_INV_CLK 0x20 +#define V_TX_INV_DATA 0x40 +#define V_OUT_EN 0x80 +/* R_TX1 */ +#define V_INV_CLK 0x01 +#define V_EXCHG_DATA_LI 0x02 +#define V_AIS_OUT 0x04 +#define V_ATX 0x20 +#define V_NTRI 0x40 +#define V_AUTO_ERR_RES 0x80 +/* R_TX_FR0 */ +#define V_TRP_FAS 0x01 +#define V_TRP_NFAS 0x02 +#define V_TRP_RAL 0x04 +#define V_TRP_SA 0x08 +/* R_TX_FR1 */ +#define V_TX_FAS 0x01 +#define V_TX_NFAS 0x02 +#define V_TX_RAL 0x04 +#define V_TX_SA 0x08 +/* R_TX_FR2 */ +#define V_TX_MF 0x01 +#define V_TRP_SL0 0x02 +#define V_TX_SL0_RAM 0x04 +#define V_TX_E 0x10 +#define V_NEG_E 0x20 +#define V_XS12_ON 0x40 +#define V_XS15_ON 0x80 +/* R_RX_OFF */ +#define V_RX_SZ 0x01 +#define V_RX_INIT 0x04 +/* R_SYNC_OUT */ +#define V_SYNC_E1_RX 0x01 +#define V_IPATS0 0x20 +#define V_IPATS1 0x40 +#define V_IPATS2 0x80 +/* R_TX_OFF */ +#define V_TX_SZ 0x01 +#define V_TX_INIT 0x04 +/* R_SYNC_CTRL */ +#define V_EXT_CLK_SYNC 0x01 +#define V_SYNC_OFFS 0x02 +#define V_PCM_SYNC 0x04 +#define V_NEG_CLK 0x08 +#define V_HCLK 0x10 +/* +#define V_JATT_AUTO_DEL 0x20 +#define V_JATT_AUTO 0x40 +*/ +#define V_JATT_OFF 0x80 +/* R_STATE */ +#define V_E1_STA 0x01 +#define V_ALT_FR_RX 0x40 +#define V_ALT_FR_TX 0x80 +/* R_SYNC_STA */ +#define V_RX_STA 0x01 +#define V_FR_SYNC_E1 0x04 +#define V_SIG_LOS 0x08 +#define V_MFA_STA 0x10 +#define V_AIS 0x40 +#define V_NO_MF_SYNC 0x80 +/* R_RX_SL0_0 */ +#define V_SI_FAS 0x01 +#define V_SI_NFAS 0x02 +#define V_A 0x04 +#define V_CRC_OK 0x08 +#define V_TX_E1 0x10 +#define V_TX_E2 0x20 +#define V_RX_E1 0x40 +#define V_RX_E2 0x80 +/* R_SLIP */ +#define V_SLIP_RX 0x01 +#define V_FOSLIP_RX 0x08 +#define V_SLIP_TX 0x10 +#define V_FOSLIP_TX 0x80 + +/* chapter 6: PCM interface */ +/* R_PCM_MD0 */ +#define V_PCM_MD 0x01 +#define V_C4_POL 0x02 +#define V_F0_NEG 0x04 +#define V_F0_LEN 0x08 +#define V_PCM_ADDR 0x10 +/* R_SL_SEL0 */ +#define V_SL_SEL0 0x01 +#define V_SH_SEL0 0x80 +/* R_SL_SEL1 */ +#define V_SL_SEL1 0x01 +#define V_SH_SEL1 0x80 +/* R_SL_SEL2 */ +#define V_SL_SEL2 0x01 +#define V_SH_SEL2 0x80 +/* R_SL_SEL3 */ +#define V_SL_SEL3 0x01 +#define V_SH_SEL3 0x80 +/* R_SL_SEL4 */ +#define V_SL_SEL4 0x01 +#define V_SH_SEL4 0x80 +/* R_SL_SEL5 */ +#define V_SL_SEL5 0x01 +#define V_SH_SEL5 0x80 +/* R_SL_SEL6 */ +#define V_SL_SEL6 0x01 +#define V_SH_SEL6 0x80 +/* R_SL_SEL7 */ +#define V_SL_SEL7 0x01 +#define V_SH_SEL7 0x80 +/* R_PCM_MD1 */ +#define V_ODEC_CON 0x01 +#define V_PLL_ADJ 0x04 +#define V_PCM_DR 0x10 +#define V_PCM_LOOP 0x40 +/* R_PCM_MD2 */ +#define V_SYNC_PLL 0x02 +#define V_SYNC_SRC 0x04 +#define V_SYNC_OUT 0x08 +#define V_ICR_FR_TIME 0x40 +#define V_EN_PLL 0x80 + +/* chapter 7: pulse width modulation */ +/* R_PWM_MD */ +#define V_EXT_IRQ_EN 0x08 +#define V_PWM0_MD 0x10 +#define V_PWM1_MD 0x40 + +/* chapter 8: multiparty audio conferences */ +/* R_CONF_EN */ +#define V_CONF_EN 0x01 +#define V_ULAW 0x80 +/* A_CONF */ +#define V_CONF_NUM 0x01 +#define V_NOISE_SUPPR 0x08 +#define V_ATT_LEV 0x20 +#define V_CONF_SL 0x80 +/* R_CONF_OFLOW */ +#define V_CONF_OFLOW0 0x01 +#define V_CONF_OFLOW1 0x02 +#define V_CONF_OFLOW2 0x04 +#define V_CONF_OFLOW3 0x08 +#define V_CONF_OFLOW4 0x10 +#define V_CONF_OFLOW5 0x20 +#define V_CONF_OFLOW6 0x40 +#define V_CONF_OFLOW7 0x80 + +/* chapter 9: DTMF contoller */ +/* R_DTMF0 */ +#define V_DTMF_EN 0x01 +#define V_HARM_SEL 0x02 +#define V_DTMF_RX_CH 0x04 +#define V_DTMF_STOP 0x08 +#define V_CHBL_SEL 0x10 +#define V_RST_DTMF 0x40 +#define V_ULAW_SEL 0x80 + +/* chapter 10: BERT */ +/* R_BERT_WD_MD */ +#define V_PAT_SEQ 0x01 +#define V_BERT_ERR 0x08 +#define V_AUTO_WD_RES 0x20 +#define V_WD_RES 0x80 +/* R_BERT_STA */ +#define V_BERT_SYNC_SRC 0x01 +#define V_BERT_SYNC 0x10 +#define V_BERT_INV_DATA 0x20 + +/* chapter 11: auxiliary interface */ +/* R_BRG_PCM_CFG */ +#define V_BRG_EN 0x01 +#define V_BRG_MD 0x02 +#define V_PCM_CLK 0x20 +#define V_ADDR_WRDLY 0x40 +/* R_BRG_CTRL */ +#define V_BRG_CS 0x01 +#define V_BRG_ADDR 0x08 +#define V_BRG_CS_SRC 0x80 +/* R_BRG_MD */ +#define V_BRG_MD0 0x01 +#define V_BRG_MD1 0x02 +#define V_BRG_MD2 0x04 +#define V_BRG_MD3 0x08 +#define V_BRG_MD4 0x10 +#define V_BRG_MD5 0x20 +#define V_BRG_MD6 0x40 +#define V_BRG_MD7 0x80 +/* R_BRG_TIM0 */ +#define V_BRG_TIM0_IDLE 0x01 +#define V_BRG_TIM0_CLK 0x10 +/* R_BRG_TIM1 */ +#define V_BRG_TIM1_IDLE 0x01 +#define V_BRG_TIM1_CLK 0x10 +/* R_BRG_TIM2 */ +#define V_BRG_TIM2_IDLE 0x01 +#define V_BRG_TIM2_CLK 0x10 +/* R_BRG_TIM3 */ +#define V_BRG_TIM3_IDLE 0x01 +#define V_BRG_TIM3_CLK 0x10 +/* R_BRG_TIM_SEL01 */ +#define V_BRG_WR_SEL0 0x01 +#define V_BRG_RD_SEL0 0x04 +#define V_BRG_WR_SEL1 0x10 +#define V_BRG_RD_SEL1 0x40 +/* R_BRG_TIM_SEL23 */ +#define V_BRG_WR_SEL2 0x01 +#define V_BRG_RD_SEL2 0x04 +#define V_BRG_WR_SEL3 0x10 +#define V_BRG_RD_SEL3 0x40 +/* R_BRG_TIM_SEL45 */ +#define V_BRG_WR_SEL4 0x01 +#define V_BRG_RD_SEL4 0x04 +#define V_BRG_WR_SEL5 0x10 +#define V_BRG_RD_SEL5 0x40 +/* R_BRG_TIM_SEL67 */ +#define V_BRG_WR_SEL6 0x01 +#define V_BRG_RD_SEL6 0x04 +#define V_BRG_WR_SEL7 0x10 +#define V_BRG_RD_SEL7 0x40 + +/* chapter 12: clock, reset, interrupt, timer and watchdog */ +/* R_IRQMSK_MISC */ +#define V_STA_IRQMSK 0x01 +#define V_TI_IRQMSK 0x02 +#define V_PROC_IRQMSK 0x04 +#define V_DTMF_IRQMSK 0x08 +#define V_IRQ1S_MSK 0x10 +#define V_SA6_IRQMSK 0x20 +#define V_RX_EOMF_MSK 0x40 +#define V_TX_EOMF_MSK 0x80 +/* R_IRQ_CTRL */ +#define V_FIFO_IRQ 0x01 +#define V_GLOB_IRQ_EN 0x08 +#define V_IRQ_POL 0x10 +/* R_TI_WD */ +#define V_EV_TS 0x01 +#define V_WD_TS 0x10 +/* A_IRQ_MSK */ +#define V_IRQ 0x01 +#define V_BERT_EN 0x02 +#define V_MIX_IRQ 0x04 +/* R_IRQ_OVIEW */ +#define V_IRQ_FIFO_BL0 0x01 +#define V_IRQ_FIFO_BL1 0x02 +#define V_IRQ_FIFO_BL2 0x04 +#define V_IRQ_FIFO_BL3 0x08 +#define V_IRQ_FIFO_BL4 0x10 +#define V_IRQ_FIFO_BL5 0x20 +#define V_IRQ_FIFO_BL6 0x40 +#define V_IRQ_FIFO_BL7 0x80 +/* R_IRQ_MISC */ +#define V_STA_IRQ 0x01 +#define V_TI_IRQ 0x02 +#define V_IRQ_PROC 0x04 +#define V_DTMF_IRQ 0x08 +#define V_IRQ1S 0x10 +#define V_SA6_IRQ 0x20 +#define V_RX_EOMF 0x40 +#define V_TX_EOMF 0x80 +/* R_STATUS */ +#define V_BUSY 0x01 +#define V_PROC 0x02 +#define V_DTMF_STA 0x04 +#define V_LOST_STA 0x08 +#define V_SYNC_IN 0x10 +#define V_EXT_IRQSTA 0x20 +#define V_MISC_IRQSTA 0x40 +#define V_FR_IRQSTA 0x80 +/* R_IRQ_FIFO_BL0 */ +#define V_IRQ_FIFO0_TX 0x01 +#define V_IRQ_FIFO0_RX 0x02 +#define V_IRQ_FIFO1_TX 0x04 +#define V_IRQ_FIFO1_RX 0x08 +#define V_IRQ_FIFO2_TX 0x10 +#define V_IRQ_FIFO2_RX 0x20 +#define V_IRQ_FIFO3_TX 0x40 +#define V_IRQ_FIFO3_RX 0x80 +/* R_IRQ_FIFO_BL1 */ +#define V_IRQ_FIFO4_TX 0x01 +#define V_IRQ_FIFO4_RX 0x02 +#define V_IRQ_FIFO5_TX 0x04 +#define V_IRQ_FIFO5_RX 0x08 +#define V_IRQ_FIFO6_TX 0x10 +#define V_IRQ_FIFO6_RX 0x20 +#define V_IRQ_FIFO7_TX 0x40 +#define V_IRQ_FIFO7_RX 0x80 +/* R_IRQ_FIFO_BL2 */ +#define V_IRQ_FIFO8_TX 0x01 +#define V_IRQ_FIFO8_RX 0x02 +#define V_IRQ_FIFO9_TX 0x04 +#define V_IRQ_FIFO9_RX 0x08 +#define V_IRQ_FIFO10_TX 0x10 +#define V_IRQ_FIFO10_RX 0x20 +#define V_IRQ_FIFO11_TX 0x40 +#define V_IRQ_FIFO11_RX 0x80 +/* R_IRQ_FIFO_BL3 */ +#define V_IRQ_FIFO12_TX 0x01 +#define V_IRQ_FIFO12_RX 0x02 +#define V_IRQ_FIFO13_TX 0x04 +#define V_IRQ_FIFO13_RX 0x08 +#define V_IRQ_FIFO14_TX 0x10 +#define V_IRQ_FIFO14_RX 0x20 +#define V_IRQ_FIFO15_TX 0x40 +#define V_IRQ_FIFO15_RX 0x80 +/* R_IRQ_FIFO_BL4 */ +#define V_IRQ_FIFO16_TX 0x01 +#define V_IRQ_FIFO16_RX 0x02 +#define V_IRQ_FIFO17_TX 0x04 +#define V_IRQ_FIFO17_RX 0x08 +#define V_IRQ_FIFO18_TX 0x10 +#define V_IRQ_FIFO18_RX 0x20 +#define V_IRQ_FIFO19_TX 0x40 +#define V_IRQ_FIFO19_RX 0x80 +/* R_IRQ_FIFO_BL5 */ +#define V_IRQ_FIFO20_TX 0x01 +#define V_IRQ_FIFO20_RX 0x02 +#define V_IRQ_FIFO21_TX 0x04 +#define V_IRQ_FIFO21_RX 0x08 +#define V_IRQ_FIFO22_TX 0x10 +#define V_IRQ_FIFO22_RX 0x20 +#define V_IRQ_FIFO23_TX 0x40 +#define V_IRQ_FIFO23_RX 0x80 +/* R_IRQ_FIFO_BL6 */ +#define V_IRQ_FIFO24_TX 0x01 +#define V_IRQ_FIFO24_RX 0x02 +#define V_IRQ_FIFO25_TX 0x04 +#define V_IRQ_FIFO25_RX 0x08 +#define V_IRQ_FIFO26_TX 0x10 +#define V_IRQ_FIFO26_RX 0x20 +#define V_IRQ_FIFO27_TX 0x40 +#define V_IRQ_FIFO27_RX 0x80 +/* R_IRQ_FIFO_BL7 */ +#define V_IRQ_FIFO28_TX 0x01 +#define V_IRQ_FIFO28_RX 0x02 +#define V_IRQ_FIFO29_TX 0x04 +#define V_IRQ_FIFO29_RX 0x08 +#define V_IRQ_FIFO30_TX 0x10 +#define V_IRQ_FIFO30_RX 0x20 +#define V_IRQ_FIFO31_TX 0x40 +#define V_IRQ_FIFO31_RX 0x80 + +/* chapter 13: general purpose I/O pins (GPIO) and input pins (GPI) */ +/* R_GPIO_OUT0 */ +#define V_GPIO_OUT0 0x01 +#define V_GPIO_OUT1 0x02 +#define V_GPIO_OUT2 0x04 +#define V_GPIO_OUT3 0x08 +#define V_GPIO_OUT4 0x10 +#define V_GPIO_OUT5 0x20 +#define V_GPIO_OUT6 0x40 +#define V_GPIO_OUT7 0x80 +/* R_GPIO_OUT1 */ +#define V_GPIO_OUT8 0x01 +#define V_GPIO_OUT9 0x02 +#define V_GPIO_OUT10 0x04 +#define V_GPIO_OUT11 0x08 +#define V_GPIO_OUT12 0x10 +#define V_GPIO_OUT13 0x20 +#define V_GPIO_OUT14 0x40 +#define V_GPIO_OUT15 0x80 +/* R_GPIO_EN0 */ +#define V_GPIO_EN0 0x01 +#define V_GPIO_EN1 0x02 +#define V_GPIO_EN2 0x04 +#define V_GPIO_EN3 0x08 +#define V_GPIO_EN4 0x10 +#define V_GPIO_EN5 0x20 +#define V_GPIO_EN6 0x40 +#define V_GPIO_EN7 0x80 +/* R_GPIO_EN1 */ +#define V_GPIO_EN8 0x01 +#define V_GPIO_EN9 0x02 +#define V_GPIO_EN10 0x04 +#define V_GPIO_EN11 0x08 +#define V_GPIO_EN12 0x10 +#define V_GPIO_EN13 0x20 +#define V_GPIO_EN14 0x40 +#define V_GPIO_EN15 0x80 +/* R_GPIO_SEL */ +#define V_GPIO_SEL0 0x01 +#define V_GPIO_SEL1 0x02 +#define V_GPIO_SEL2 0x04 +#define V_GPIO_SEL3 0x08 +#define V_GPIO_SEL4 0x10 +#define V_GPIO_SEL5 0x20 +#define V_GPIO_SEL6 0x40 +#define V_GPIO_SEL7 0x80 +/* R_GPIO_IN0 */ +#define V_GPIO_IN0 0x01 +#define V_GPIO_IN1 0x02 +#define V_GPIO_IN2 0x04 +#define V_GPIO_IN3 0x08 +#define V_GPIO_IN4 0x10 +#define V_GPIO_IN5 0x20 +#define V_GPIO_IN6 0x40 +#define V_GPIO_IN7 0x80 +/* R_GPIO_IN1 */ +#define V_GPIO_IN8 0x01 +#define V_GPIO_IN9 0x02 +#define V_GPIO_IN10 0x04 +#define V_GPIO_IN11 0x08 +#define V_GPIO_IN12 0x10 +#define V_GPIO_IN13 0x20 +#define V_GPIO_IN14 0x40 +#define V_GPIO_IN15 0x80 +/* R_GPI_IN0 */ +#define V_GPI_IN0 0x01 +#define V_GPI_IN1 0x02 +#define V_GPI_IN2 0x04 +#define V_GPI_IN3 0x08 +#define V_GPI_IN4 0x10 +#define V_GPI_IN5 0x20 +#define V_GPI_IN6 0x40 +#define V_GPI_IN7 0x80 +/* R_GPI_IN1 */ +#define V_GPI_IN8 0x01 +#define V_GPI_IN9 0x02 +#define V_GPI_IN10 0x04 +#define V_GPI_IN11 0x08 +#define V_GPI_IN12 0x10 +#define V_GPI_IN13 0x20 +#define V_GPI_IN14 0x40 +#define V_GPI_IN15 0x80 +/* R_GPI_IN2 */ +#define V_GPI_IN16 0x01 +#define V_GPI_IN17 0x02 +#define V_GPI_IN18 0x04 +#define V_GPI_IN19 0x08 +#define V_GPI_IN20 0x10 +#define V_GPI_IN21 0x20 +#define V_GPI_IN22 0x40 +#define V_GPI_IN23 0x80 +/* R_GPI_IN3 */ +#define V_GPI_IN24 0x01 +#define V_GPI_IN25 0x02 +#define V_GPI_IN26 0x04 +#define V_GPI_IN27 0x08 +#define V_GPI_IN28 0x10 +#define V_GPI_IN29 0x20 +#define V_GPI_IN30 0x40 +#define V_GPI_IN31 0x80 + +/* map of all registers, used for debugging */ + +#ifdef HFC_REGISTER_DEBUG +struct hfc_register_names { + char *name; + u_char reg; +} hfc_register_names[] = { + /* write registers */ + {"R_CIRM", 0x00}, + {"R_CTRL", 0x01}, + {"R_BRG_PCM_CFG ", 0x02}, + {"R_RAM_ADDR0", 0x08}, + {"R_RAM_ADDR1", 0x09}, + {"R_RAM_ADDR2", 0x0A}, + {"R_FIRST_FIFO", 0x0B}, + {"R_RAM_SZ", 0x0C}, + {"R_FIFO_MD", 0x0D}, + {"R_INC_RES_FIFO", 0x0E}, + {"R_FIFO / R_FSM_IDX", 0x0F}, + {"R_SLOT", 0x10}, + {"R_IRQMSK_MISC", 0x11}, + {"R_SCI_MSK", 0x12}, + {"R_IRQ_CTRL", 0x13}, + {"R_PCM_MD0", 0x14}, + {"R_0x15", 0x15}, + {"R_ST_SEL", 0x16}, + {"R_ST_SYNC", 0x17}, + {"R_CONF_EN", 0x18}, + {"R_TI_WD", 0x1A}, + {"R_BERT_WD_MD", 0x1B}, + {"R_DTMF", 0x1C}, + {"R_DTMF_N", 0x1D}, + {"R_E1_XX_STA", 0x20}, + {"R_LOS0", 0x22}, + {"R_LOS1", 0x23}, + {"R_RX0", 0x24}, + {"R_RX_FR0", 0x25}, + {"R_RX_FR1", 0x26}, + {"R_TX0", 0x28}, + {"R_TX1", 0x29}, + {"R_TX_FR0", 0x2C}, + {"R_TX_FR1", 0x2D}, + {"R_TX_FR2", 0x2E}, + {"R_JATT_ATT", 0x2F}, + {"A_ST_xx_STA/R_RX_OFF", 0x30}, + {"A_ST_CTRL0/R_SYNC_OUT", 0x31}, + {"A_ST_CTRL1", 0x32}, + {"A_ST_CTRL2", 0x33}, + {"A_ST_SQ_WR", 0x34}, + {"R_TX_OFF", 0x34}, + {"R_SYNC_CTRL", 0x35}, + {"A_ST_CLK_DLY", 0x37}, + {"R_PWM0", 0x38}, + {"R_PWM1", 0x39}, + {"A_ST_B1_TX", 0x3C}, + {"A_ST_B2_TX", 0x3D}, + {"A_ST_D_TX", 0x3E}, + {"R_GPIO_OUT0", 0x40}, + {"R_GPIO_OUT1", 0x41}, + {"R_GPIO_EN0", 0x42}, + {"R_GPIO_EN1", 0x43}, + {"R_GPIO_SEL", 0x44}, + {"R_BRG_CTRL", 0x45}, + {"R_PWM_MD", 0x46}, + {"R_BRG_MD", 0x47}, + {"R_BRG_TIM0", 0x48}, + {"R_BRG_TIM1", 0x49}, + {"R_BRG_TIM2", 0x4A}, + {"R_BRG_TIM3", 0x4B}, + {"R_BRG_TIM_SEL01", 0x4C}, + {"R_BRG_TIM_SEL23", 0x4D}, + {"R_BRG_TIM_SEL45", 0x4E}, + {"R_BRG_TIM_SEL67", 0x4F}, + {"A_FIFO_DATA0-2", 0x80}, + {"A_FIFO_DATA0-2_NOINC", 0x84}, + {"R_RAM_DATA", 0xC0}, + {"A_SL_CFG", 0xD0}, + {"A_CONF", 0xD1}, + {"A_CH_MSK", 0xF4}, + {"A_CON_HDLC", 0xFA}, + {"A_SUBCH_CFG", 0xFB}, + {"A_CHANNEL", 0xFC}, + {"A_FIFO_SEQ", 0xFD}, + {"A_IRQ_MSK", 0xFF}, + {NULL, 0}, + + /* read registers */ + {"A_Z1", 0x04}, + {"A_Z1H", 0x05}, + {"A_Z2", 0x06}, + {"A_Z2H", 0x07}, + {"A_F1", 0x0C}, + {"A_F2", 0x0D}, + {"R_IRQ_OVIEW", 0x10}, + {"R_IRQ_MISC", 0x11}, + {"R_IRQ_STATECH", 0x12}, + {"R_CONF_OFLOW", 0x14}, + {"R_RAM_USE", 0x15}, + {"R_CHIP_ID", 0x16}, + {"R_BERT_STA", 0x17}, + {"R_F0_CNTL", 0x18}, + {"R_F0_CNTH", 0x19}, + {"R_BERT_ECL", 0x1A}, + {"R_BERT_ECH", 0x1B}, + {"R_STATUS", 0x1C}, + {"R_CHIP_RV", 0x1F}, + {"R_STATE", 0x20}, + {"R_SYNC_STA", 0x24}, + {"R_RX_SL0_0", 0x25}, + {"R_RX_SL0_1", 0x26}, + {"R_RX_SL0_2", 0x27}, + {"R_JATT_DIR", 0x2b}, + {"R_SLIP", 0x2c}, + {"A_ST_RD_STA", 0x30}, + {"R_FAS_ECL", 0x30}, + {"R_FAS_ECH", 0x31}, + {"R_VIO_ECL", 0x32}, + {"R_VIO_ECH", 0x33}, + {"R_CRC_ECL / A_ST_SQ_RD", 0x34}, + {"R_CRC_ECH", 0x35}, + {"R_E_ECL", 0x36}, + {"R_E_ECH", 0x37}, + {"R_SA6_SA13_ECL", 0x38}, + {"R_SA6_SA13_ECH", 0x39}, + {"R_SA6_SA23_ECL", 0x3A}, + {"R_SA6_SA23_ECH", 0x3B}, + {"A_ST_B1_RX", 0x3C}, + {"A_ST_B2_RX", 0x3D}, + {"A_ST_D_RX", 0x3E}, + {"A_ST_E_RX", 0x3F}, + {"R_GPIO_IN0", 0x40}, + {"R_GPIO_IN1", 0x41}, + {"R_GPI_IN0", 0x44}, + {"R_GPI_IN1", 0x45}, + {"R_GPI_IN2", 0x46}, + {"R_GPI_IN3", 0x47}, + {"A_FIFO_DATA0-2", 0x80}, + {"A_FIFO_DATA0-2_NOINC", 0x84}, + {"R_INT_DATA", 0x88}, + {"R_RAM_DATA", 0xC0}, + {"R_IRQ_FIFO_BL0", 0xC8}, + {"R_IRQ_FIFO_BL1", 0xC9}, + {"R_IRQ_FIFO_BL2", 0xCA}, + {"R_IRQ_FIFO_BL3", 0xCB}, + {"R_IRQ_FIFO_BL4", 0xCC}, + {"R_IRQ_FIFO_BL5", 0xCD}, + {"R_IRQ_FIFO_BL6", 0xCE}, + {"R_IRQ_FIFO_BL7", 0xCF}, +}; +#endif /* HFC_REGISTER_DEBUG */ + diff --git a/drivers/isdn/hardware/mISDN/hfc_pci.h b/drivers/isdn/hardware/mISDN/hfc_pci.h new file mode 100644 index 0000000..fd2c9be --- /dev/null +++ b/drivers/isdn/hardware/mISDN/hfc_pci.h @@ -0,0 +1,228 @@ +/* + * specific defines for CCD's HFC 2BDS0 PCI chips + * + * Author Werner Cornelius (werner@isdn4linux.de) + * + * Copyright 1999 by Werner Cornelius (werner@isdn4linux.de) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +/* + * thresholds for transparent B-channel mode + * change mask and threshold simultaneously + */ +#define HFCPCI_BTRANS_THRESHOLD 128 +#define HFCPCI_BTRANS_MAX 256 +#define HFCPCI_BTRANS_THRESMASK 0x00 + +/* defines for PCI config */ +#define PCI_ENA_MEMIO 0x02 +#define PCI_ENA_MASTER 0x04 + +/* GCI/IOM bus monitor registers */ +#define HCFPCI_C_I 0x08 +#define HFCPCI_TRxR 0x0C +#define HFCPCI_MON1_D 0x28 +#define HFCPCI_MON2_D 0x2C + +/* GCI/IOM bus timeslot registers */ +#define HFCPCI_B1_SSL 0x80 +#define HFCPCI_B2_SSL 0x84 +#define HFCPCI_AUX1_SSL 0x88 +#define HFCPCI_AUX2_SSL 0x8C +#define HFCPCI_B1_RSL 0x90 +#define HFCPCI_B2_RSL 0x94 +#define HFCPCI_AUX1_RSL 0x98 +#define HFCPCI_AUX2_RSL 0x9C + +/* GCI/IOM bus data registers */ +#define HFCPCI_B1_D 0xA0 +#define HFCPCI_B2_D 0xA4 +#define HFCPCI_AUX1_D 0xA8 +#define HFCPCI_AUX2_D 0xAC + +/* GCI/IOM bus configuration registers */ +#define HFCPCI_MST_EMOD 0xB4 +#define HFCPCI_MST_MODE 0xB8 +#define HFCPCI_CONNECT 0xBC + + +/* Interrupt and status registers */ +#define HFCPCI_FIFO_EN 0x44 +#define HFCPCI_TRM 0x48 +#define HFCPCI_B_MODE 0x4C +#define HFCPCI_CHIP_ID 0x58 +#define HFCPCI_CIRM 0x60 +#define HFCPCI_CTMT 0x64 +#define HFCPCI_INT_M1 0x68 +#define HFCPCI_INT_M2 0x6C +#define HFCPCI_INT_S1 0x78 +#define HFCPCI_INT_S2 0x7C +#define HFCPCI_STATUS 0x70 + +/* S/T section registers */ +#define HFCPCI_STATES 0xC0 +#define HFCPCI_SCTRL 0xC4 +#define HFCPCI_SCTRL_E 0xC8 +#define HFCPCI_SCTRL_R 0xCC +#define HFCPCI_SQ 0xD0 +#define HFCPCI_CLKDEL 0xDC +#define HFCPCI_B1_REC 0xF0 +#define HFCPCI_B1_SEND 0xF0 +#define HFCPCI_B2_REC 0xF4 +#define HFCPCI_B2_SEND 0xF4 +#define HFCPCI_D_REC 0xF8 +#define HFCPCI_D_SEND 0xF8 +#define HFCPCI_E_REC 0xFC + + +/* bits in status register (READ) */ +#define HFCPCI_PCI_PROC 0x02 +#define HFCPCI_NBUSY 0x04 +#define HFCPCI_TIMER_ELAP 0x10 +#define HFCPCI_STATINT 0x20 +#define HFCPCI_FRAMEINT 0x40 +#define HFCPCI_ANYINT 0x80 + +/* bits in CTMT (Write) */ +#define HFCPCI_CLTIMER 0x80 +#define HFCPCI_TIM3_125 0x04 +#define HFCPCI_TIM25 0x10 +#define HFCPCI_TIM50 0x14 +#define HFCPCI_TIM400 0x18 +#define HFCPCI_TIM800 0x1C +#define HFCPCI_AUTO_TIMER 0x20 +#define HFCPCI_TRANSB2 0x02 +#define HFCPCI_TRANSB1 0x01 + +/* bits in CIRM (Write) */ +#define HFCPCI_AUX_MSK 0x07 +#define HFCPCI_RESET 0x08 +#define HFCPCI_B1_REV 0x40 +#define HFCPCI_B2_REV 0x80 + +/* bits in INT_M1 and INT_S1 */ +#define HFCPCI_INTS_B1TRANS 0x01 +#define HFCPCI_INTS_B2TRANS 0x02 +#define HFCPCI_INTS_DTRANS 0x04 +#define HFCPCI_INTS_B1REC 0x08 +#define HFCPCI_INTS_B2REC 0x10 +#define HFCPCI_INTS_DREC 0x20 +#define HFCPCI_INTS_L1STATE 0x40 +#define HFCPCI_INTS_TIMER 0x80 + +/* bits in INT_M2 */ +#define HFCPCI_PROC_TRANS 0x01 +#define HFCPCI_GCI_I_CHG 0x02 +#define HFCPCI_GCI_MON_REC 0x04 +#define HFCPCI_IRQ_ENABLE 0x08 +#define HFCPCI_PMESEL 0x80 + +/* bits in STATES */ +#define HFCPCI_STATE_MSK 0x0F +#define HFCPCI_LOAD_STATE 0x10 +#define HFCPCI_ACTIVATE 0x20 +#define HFCPCI_DO_ACTION 0x40 +#define HFCPCI_NT_G2_G3 0x80 + +/* bits in HFCD_MST_MODE */ +#define HFCPCI_MASTER 0x01 +#define HFCPCI_SLAVE 0x00 +#define HFCPCI_F0IO_POSITIV 0x02 +#define HFCPCI_F0_NEGATIV 0x04 +#define HFCPCI_F0_2C4 0x08 +/* remaining bits are for codecs control */ + +/* bits in HFCD_SCTRL */ +#define SCTRL_B1_ENA 0x01 +#define SCTRL_B2_ENA 0x02 +#define SCTRL_MODE_TE 0x00 +#define SCTRL_MODE_NT 0x04 +#define SCTRL_LOW_PRIO 0x08 +#define SCTRL_SQ_ENA 0x10 +#define SCTRL_TEST 0x20 +#define SCTRL_NONE_CAP 0x40 +#define SCTRL_PWR_DOWN 0x80 + +/* bits in SCTRL_E */ +#define HFCPCI_AUTO_AWAKE 0x01 +#define HFCPCI_DBIT_1 0x04 +#define HFCPCI_IGNORE_COL 0x08 +#define HFCPCI_CHG_B1_B2 0x80 + +/* bits in FIFO_EN register */ +#define HFCPCI_FIFOEN_B1 0x03 +#define HFCPCI_FIFOEN_B2 0x0C +#define HFCPCI_FIFOEN_DTX 0x10 +#define HFCPCI_FIFOEN_B1TX 0x01 +#define HFCPCI_FIFOEN_B1RX 0x02 +#define HFCPCI_FIFOEN_B2TX 0x04 +#define HFCPCI_FIFOEN_B2RX 0x08 + + +/* definitions of fifo memory area */ +#define MAX_D_FRAMES 15 +#define MAX_B_FRAMES 31 +#define B_SUB_VAL 0x200 +#define B_FIFO_SIZE (0x2000 - B_SUB_VAL) +#define D_FIFO_SIZE 512 +#define D_FREG_MASK 0xF + +struct zt { + unsigned short z1; /* Z1 pointer 16 Bit */ + unsigned short z2; /* Z2 pointer 16 Bit */ +}; + +struct dfifo { + u_char data[D_FIFO_SIZE]; /* FIFO data space */ + u_char fill1[0x20A0-D_FIFO_SIZE]; /* reserved, do not use */ + u_char f1, f2; /* f pointers */ + u_char fill2[0x20C0-0x20A2]; /* reserved, do not use */ + /* mask index with D_FREG_MASK for access */ + struct zt za[MAX_D_FRAMES+1]; + u_char fill3[0x4000-0x2100]; /* align 16K */ +}; + +struct bzfifo { + struct zt za[MAX_B_FRAMES+1]; /* only range 0x0..0x1F allowed */ + u_char f1, f2; /* f pointers */ + u_char fill[0x2100-0x2082]; /* alignment */ +}; + + +union fifo_area { + struct { + struct dfifo d_tx; /* D-send channel */ + struct dfifo d_rx; /* D-receive channel */ + } d_chan; + struct { + u_char fill1[0x200]; + u_char txdat_b1[B_FIFO_SIZE]; + struct bzfifo txbz_b1; + struct bzfifo txbz_b2; + u_char txdat_b2[B_FIFO_SIZE]; + u_char fill2[D_FIFO_SIZE]; + u_char rxdat_b1[B_FIFO_SIZE]; + struct bzfifo rxbz_b1; + struct bzfifo rxbz_b2; + u_char rxdat_b2[B_FIFO_SIZE]; + } b_chans; + u_char fill[32768]; +}; + +#define Write_hfc(a, b, c) (writeb(c, (a->hw.pci_io)+b)) +#define Read_hfc(a, b) (readb((a->hw.pci_io)+b)) diff --git a/drivers/isdn/hardware/mISDN/hfcmulti.c b/drivers/isdn/hardware/mISDN/hfcmulti.c new file mode 100644 index 0000000..2649ea5 --- /dev/null +++ b/drivers/isdn/hardware/mISDN/hfcmulti.c @@ -0,0 +1,5320 @@ +/* + * hfcmulti.c low level driver for hfc-4s/hfc-8s/hfc-e1 based cards + * + * Author Andreas Eversberg (jolly@eversberg.eu) + * ported to mqueue mechanism: + * Peter Sprenger (sprengermoving-bytes.de) + * + * inspired by existing hfc-pci driver: + * Copyright 1999 by Werner Cornelius (werner@isdn-development.de) + * Copyright 2008 by Karsten Keil (kkeil@suse.de) + * Copyright 2008 by Andreas Eversberg (jolly@eversberg.eu) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + * + * Thanks to Cologne Chip AG for this great controller! + */ + +/* + * module parameters: + * type: + * By default (0), the card is automatically detected. + * Or use the following combinations: + * Bit 0-7 = 0x00001 = HFC-E1 (1 port) + * or Bit 0-7 = 0x00004 = HFC-4S (4 ports) + * or Bit 0-7 = 0x00008 = HFC-8S (8 ports) + * Bit 8 = 0x00100 = uLaw (instead of aLaw) + * Bit 9 = 0x00200 = Disable DTMF detect on all B-channels via hardware + * Bit 10 = spare + * Bit 11 = 0x00800 = Force PCM bus into slave mode. (otherwhise auto) + * or Bit 12 = 0x01000 = Force PCM bus into master mode. (otherwhise auto) + * Bit 13 = spare + * Bit 14 = 0x04000 = Use external ram (128K) + * Bit 15 = 0x08000 = Use external ram (512K) + * Bit 16 = 0x10000 = Use 64 timeslots instead of 32 + * or Bit 17 = 0x20000 = Use 128 timeslots instead of anything else + * Bit 18 = spare + * Bit 19 = 0x80000 = Send the Watchdog a Signal (Dual E1 with Watchdog) + * (all other bits are reserved and shall be 0) + * example: 0x20204 one HFC-4S with dtmf detection and 128 timeslots on PCM + * bus (PCM master) + * + * port: (optional or required for all ports on all installed cards) + * HFC-4S/HFC-8S only bits: + * Bit 0 = 0x001 = Use master clock for this S/T interface + * (ony once per chip). + * Bit 1 = 0x002 = transmitter line setup (non capacitive mode) + * Don't use this unless you know what you are doing! + * Bit 2 = 0x004 = Disable E-channel. (No E-channel processing) + * example: 0x0001,0x0000,0x0000,0x0000 one HFC-4S with master clock + * received from port 1 + * + * HFC-E1 only bits: + * Bit 0 = 0x0001 = interface: 0=copper, 1=optical + * Bit 1 = 0x0002 = reserved (later for 32 B-channels transparent mode) + * Bit 2 = 0x0004 = Report LOS + * Bit 3 = 0x0008 = Report AIS + * Bit 4 = 0x0010 = Report SLIP + * Bit 5 = 0x0020 = Report RDI + * Bit 8 = 0x0100 = Turn off CRC-4 Multiframe Mode, use double frame + * mode instead. + * Bit 9 = 0x0200 = Force get clock from interface, even in NT mode. + * or Bit 10 = 0x0400 = Force put clock to interface, even in TE mode. + * Bit 11 = 0x0800 = Use direct RX clock for PCM sync rather than PLL. + * (E1 only) + * Bit 12-13 = 0xX000 = elastic jitter buffer (1-3), Set both bits to 0 + * for default. + * (all other bits are reserved and shall be 0) + * + * debug: + * NOTE: only one debug value must be given for all cards + * enable debugging (see hfc_multi.h for debug options) + * + * poll: + * NOTE: only one poll value must be given for all cards + * Give the number of samples for each fifo process. + * By default 128 is used. Decrease to reduce delay, increase to + * reduce cpu load. If unsure, don't mess with it! + * Valid is 8, 16, 32, 64, 128, 256. + * + * pcm: + * NOTE: only one pcm value must be given for every card. + * The PCM bus id tells the mISDNdsp module about the connected PCM bus. + * By default (0), the PCM bus id is 100 for the card that is PCM master. + * If multiple cards are PCM master (because they are not interconnected), + * each card with PCM master will have increasing PCM id. + * All PCM busses with the same ID are expected to be connected and have + * common time slots slots. + * Only one chip of the PCM bus must be master, the others slave. + * -1 means no support of PCM bus not even. + * Omit this value, if all cards are interconnected or none is connected. + * If unsure, don't give this parameter. + * + * dslot: + * NOTE: only one poll value must be given for every card. + * Also this value must be given for non-E1 cards. If omitted, the E1 + * card has D-channel on time slot 16, which is default. + * If 1..15 or 17..31, an alternate time slot is used for D-channel. + * In this case, the application must be able to handle this. + * If -1 is given, the D-channel is disabled and all 31 slots can be used + * for B-channel. (only for specific applications) + * If you don't know how to use it, you don't need it! + * + * iomode: + * NOTE: only one mode value must be given for every card. + * -> See hfc_multi.h for HFC_IO_MODE_* values + * By default, the IO mode is pci memory IO (MEMIO). + * Some cards requre specific IO mode, so it cannot be changed. + * It may be usefull to set IO mode to register io (REGIO) to solve + * PCI bridge problems. + * If unsure, don't give this parameter. + * + * clockdelay_nt: + * NOTE: only one clockdelay_nt value must be given once for all cards. + * Give the value of the clock control register (A_ST_CLK_DLY) + * of the S/T interfaces in NT mode. + * This register is needed for the TBR3 certification, so don't change it. + * + * clockdelay_te: + * NOTE: only one clockdelay_te value must be given once + * Give the value of the clock control register (A_ST_CLK_DLY) + * of the S/T interfaces in TE mode. + * This register is needed for the TBR3 certification, so don't change it. + */ + +/* + * debug register access (never use this, it will flood your system log) + * #define HFC_REGISTER_DEBUG + */ + +static const char *hfcmulti_revision = "2.00"; + +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/delay.h> +#include <linux/mISDNhw.h> +#include <linux/mISDNdsp.h> + +/* +#define IRQCOUNT_DEBUG +#define IRQ_DEBUG +*/ + +#include "hfc_multi.h" +#ifdef ECHOPREP +#include "gaintab.h" +#endif + +#define MAX_CARDS 8 +#define MAX_PORTS (8 * MAX_CARDS) + +static LIST_HEAD(HFClist); +static spinlock_t HFClock; /* global hfc list lock */ + +static void ph_state_change(struct dchannel *); +static void (*hfc_interrupt)(void); +static void (*register_interrupt)(void); +static int (*unregister_interrupt)(void); +static int interrupt_registered; + +static struct hfc_multi *syncmaster; +int plxsd_master; /* if we have a master card (yet) */ +static spinlock_t plx_lock; /* may not acquire other lock inside */ +EXPORT_SYMBOL(plx_lock); + +#define TYP_E1 1 +#define TYP_4S 4 +#define TYP_8S 8 + +static int poll_timer = 6; /* default = 128 samples = 16ms */ +/* number of POLL_TIMER interrupts for G2 timeout (ca 1s) */ +static int nt_t1_count[] = { 3840, 1920, 960, 480, 240, 120, 60, 30 }; +#define CLKDEL_TE 0x0f /* CLKDEL in TE mode */ +#define CLKDEL_NT 0x6c /* CLKDEL in NT mode + (0x60 MUST be included!) */ +static u_char silence = 0xff; /* silence by LAW */ + +#define DIP_4S 0x1 /* DIP Switches for Beronet 1S/2S/4S cards */ +#define DIP_8S 0x2 /* DIP Switches for Beronet 8S+ cards */ +#define DIP_E1 0x3 /* DIP Switches for Beronet E1 cards */ + +/* + * module stuff + */ + +static uint type[MAX_CARDS]; +static uint pcm[MAX_CARDS]; +static uint dslot[MAX_CARDS]; +static uint iomode[MAX_CARDS]; +static uint port[MAX_PORTS]; +static uint debug; +static uint poll; +static uint timer; +static uint clockdelay_te = CLKDEL_TE; +static uint clockdelay_nt = CLKDEL_NT; + +static int HFC_cnt, Port_cnt, PCM_cnt = 99; + +MODULE_AUTHOR("Andreas Eversberg"); +MODULE_LICENSE("GPL"); +module_param(debug, uint, S_IRUGO | S_IWUSR); +module_param(poll, uint, S_IRUGO | S_IWUSR); +module_param(timer, uint, S_IRUGO | S_IWUSR); +module_param(clockdelay_te, uint, S_IRUGO | S_IWUSR); +module_param(clockdelay_nt, uint, S_IRUGO | S_IWUSR); +module_param_array(type, uint, NULL, S_IRUGO | S_IWUSR); +module_param_array(pcm, uint, NULL, S_IRUGO | S_IWUSR); +module_param_array(dslot, uint, NULL, S_IRUGO | S_IWUSR); +module_param_array(iomode, uint, NULL, S_IRUGO | S_IWUSR); +module_param_array(port, uint, NULL, S_IRUGO | S_IWUSR); + +#ifdef HFC_REGISTER_DEBUG +#define HFC_outb(hc, reg, val) \ + (hc->HFC_outb(hc, reg, val, __func__, __LINE__)) +#define HFC_outb_nodebug(hc, reg, val) \ + (hc->HFC_outb_nodebug(hc, reg, val, __func__, __LINE__)) +#define HFC_inb(hc, reg) \ + (hc->HFC_inb(hc, reg, __func__, __LINE__)) +#define HFC_inb_nodebug(hc, reg) \ + (hc->HFC_inb_nodebug(hc, reg, __func__, __LINE__)) +#define HFC_inw(hc, reg) \ + (hc->HFC_inw(hc, reg, __func__, __LINE__)) +#define HFC_inw_nodebug(hc, reg) \ + (hc->HFC_inw_nodebug(hc, reg, __func__, __LINE__)) +#define HFC_wait(hc) \ + (hc->HFC_wait(hc, __func__, __LINE__)) +#define HFC_wait_nodebug(hc) \ + (hc->HFC_wait_nodebug(hc, __func__, __LINE__)) +#else +#define HFC_outb(hc, reg, val) (hc->HFC_outb(hc, reg, val)) +#define HFC_outb_nodebug(hc, reg, val) (hc->HFC_outb_nodebug(hc, reg, val)) +#define HFC_inb(hc, reg) (hc->HFC_inb(hc, reg)) +#define HFC_inb_nodebug(hc, reg) (hc->HFC_inb_nodebug(hc, reg)) +#define HFC_inw(hc, reg) (hc->HFC_inw(hc, reg)) +#define HFC_inw_nodebug(hc, reg) (hc->HFC_inw_nodebug(hc, reg)) +#define HFC_wait(hc) (hc->HFC_wait(hc)) +#define HFC_wait_nodebug(hc) (hc->HFC_wait_nodebug(hc)) +#endif + +/* HFC_IO_MODE_PCIMEM */ +static void +#ifdef HFC_REGISTER_DEBUG +HFC_outb_pcimem(struct hfc_multi *hc, u_char reg, u_char val, + const char *function, int line) +#else +HFC_outb_pcimem(struct hfc_multi *hc, u_char reg, u_char val) +#endif +{ + writeb(val, (hc->pci_membase)+reg); +} +static u_char +#ifdef HFC_REGISTER_DEBUG +HFC_inb_pcimem(struct hfc_multi *hc, u_char reg, const char *function, int line) +#else +HFC_inb_pcimem(struct hfc_multi *hc, u_char reg) +#endif +{ + return readb((hc->pci_membase)+reg); +} +static u_short +#ifdef HFC_REGISTER_DEBUG +HFC_inw_pcimem(struct hfc_multi *hc, u_char reg, const char *function, int line) +#else +HFC_inw_pcimem(struct hfc_multi *hc, u_char reg) +#endif +{ + return readw((hc->pci_membase)+reg); +} +static void +#ifdef HFC_REGISTER_DEBUG +HFC_wait_pcimem(struct hfc_multi *hc, const char *function, int line) +#else +HFC_wait_pcimem(struct hfc_multi *hc) +#endif +{ + while (readb((hc->pci_membase)+R_STATUS) & V_BUSY); +} + +/* HFC_IO_MODE_REGIO */ +static void +#ifdef HFC_REGISTER_DEBUG +HFC_outb_regio(struct hfc_multi *hc, u_char reg, u_char val, + const char *function, int line) +#else +HFC_outb_regio(struct hfc_multi *hc, u_char reg, u_char val) +#endif +{ + outb(reg, (hc->pci_iobase)+4); + outb(val, hc->pci_iobase); +} +static u_char +#ifdef HFC_REGISTER_DEBUG +HFC_inb_regio(struct hfc_multi *hc, u_char reg, const char *function, int line) +#else +HFC_inb_regio(struct hfc_multi *hc, u_char reg) +#endif +{ + outb(reg, (hc->pci_iobase)+4); + return inb(hc->pci_iobase); +} +static u_short +#ifdef HFC_REGISTER_DEBUG +HFC_inw_regio(struct hfc_multi *hc, u_char reg, const char *function, int line) +#else +HFC_inw_regio(struct hfc_multi *hc, u_char reg) +#endif +{ + outb(reg, (hc->pci_iobase)+4); + return inw(hc->pci_iobase); +} +static void +#ifdef HFC_REGISTER_DEBUG +HFC_wait_regio(struct hfc_multi *hc, const char *function, int line) +#else +HFC_wait_regio(struct hfc_multi *hc) +#endif +{ + outb(R_STATUS, (hc->pci_iobase)+4); + while (inb(hc->pci_iobase) & V_BUSY); +} + +#ifdef HFC_REGISTER_DEBUG +static void +HFC_outb_debug(struct hfc_multi *hc, u_char reg, u_char val, + const char *function, int line) +{ + char regname[256] = "", bits[9] = "xxxxxxxx"; + int i; + + i = -1; + while (hfc_register_names[++i].name) { + if (hfc_register_names[i].reg == reg) + strcat(regname, hfc_register_names[i].name); + } + if (regname[0] == '\0') + strcpy(regname, "register"); + + bits[7] = '0'+(!!(val&1)); + bits[6] = '0'+(!!(val&2)); + bits[5] = '0'+(!!(val&4)); + bits[4] = '0'+(!!(val&8)); + bits[3] = '0'+(!!(val&16)); + bits[2] = '0'+(!!(val&32)); + bits[1] = '0'+(!!(val&64)); + bits[0] = '0'+(!!(val&128)); + printk(KERN_DEBUG + "HFC_outb(chip %d, %02x=%s, 0x%02x=%s); in %s() line %d\n", + hc->id, reg, regname, val, bits, function, line); + HFC_outb_nodebug(hc, reg, val); +} +static u_char +HFC_inb_debug(struct hfc_multi *hc, u_char reg, const char *function, int line) +{ + char regname[256] = "", bits[9] = "xxxxxxxx"; + u_char val = HFC_inb_nodebug(hc, reg); + int i; + + i = 0; + while (hfc_register_names[i++].name) + ; + while (hfc_register_names[++i].name) { + if (hfc_register_names[i].reg == reg) + strcat(regname, hfc_register_names[i].name); + } + if (regname[0] == '\0') + strcpy(regname, "register"); + + bits[7] = '0'+(!!(val&1)); + bits[6] = '0'+(!!(val&2)); + bits[5] = '0'+(!!(val&4)); + bits[4] = '0'+(!!(val&8)); + bits[3] = '0'+(!!(val&16)); + bits[2] = '0'+(!!(val&32)); + bits[1] = '0'+(!!(val&64)); + bits[0] = '0'+(!!(val&128)); + printk(KERN_DEBUG + "HFC_inb(chip %d, %02x=%s) = 0x%02x=%s; in %s() line %d\n", + hc->id, reg, regname, val, bits, function, line); + return val; +} +static u_short +HFC_inw_debug(struct hfc_multi *hc, u_char reg, const char *function, int line) +{ + char regname[256] = ""; + u_short val = HFC_inw_nodebug(hc, reg); + int i; + + i = 0; + while (hfc_register_names[i++].name) + ; + while (hfc_register_names[++i].name) { + if (hfc_register_names[i].reg == reg) + strcat(regname, hfc_register_names[i].name); + } + if (regname[0] == '\0') + strcpy(regname, "register"); + + printk(KERN_DEBUG + "HFC_inw(chip %d, %02x=%s) = 0x%04x; in %s() line %d\n", + hc->id, reg, regname, val, function, line); + return val; +} +static void +HFC_wait_debug(struct hfc_multi *hc, const char *function, int line) +{ + printk(KERN_DEBUG "HFC_wait(chip %d); in %s() line %d\n", + hc->id, function, line); + HFC_wait_nodebug(hc); +} +#endif + +/* write fifo data (REGIO) */ +void +write_fifo_regio(struct hfc_multi *hc, u_char *data, int len) +{ + outb(A_FIFO_DATA0, (hc->pci_iobase)+4); + while (len>>2) { + outl(*(u32 *)data, hc->pci_iobase); + data += 4; + len -= 4; + } + while (len>>1) { + outw(*(u16 *)data, hc->pci_iobase); + data += 2; + len -= 2; + } + while (len) { + outb(*data, hc->pci_iobase); + data++; + len--; + } +} +/* write fifo data (PCIMEM) */ +void +write_fifo_pcimem(struct hfc_multi *hc, u_char *data, int len) +{ + while (len>>2) { + writel(*(u32 *)data, (hc->pci_membase)+A_FIFO_DATA0); + data += 4; + len -= 4; + } + while (len>>1) { + writew(*(u16 *)data, (hc->pci_membase)+A_FIFO_DATA0); + data += 2; + len -= 2; + } + while (len) { + writeb(*data, (hc->pci_membase)+A_FIFO_DATA0); + data++; + len--; + } +} +/* read fifo data (REGIO) */ +void +read_fifo_regio(struct hfc_multi *hc, u_char *data, int len) +{ + outb(A_FIFO_DATA0, (hc->pci_iobase)+4); + while (len>>2) { + *(u32 *)data = inl(hc->pci_iobase); + data += 4; + len -= 4; + } + while (len>>1) { + *(u16 *)data = inw(hc->pci_iobase); + data += 2; + len -= 2; + } + while (len) { + *data = inb(hc->pci_iobase); + data++; + len--; + } +} + +/* read fifo data (PCIMEM) */ +void +read_fifo_pcimem(struct hfc_multi *hc, u_char *data, int len) +{ + while (len>>2) { + *(u32 *)data = + readl((hc->pci_membase)+A_FIFO_DATA0); + data += 4; + len -= 4; + } + while (len>>1) { + *(u16 *)data = + readw((hc->pci_membase)+A_FIFO_DATA0); + data += 2; + len -= 2; + } + while (len) { + *data = readb((hc->pci_membase)+A_FIFO_DATA0); + data++; + len--; + } +} + + +static void +enable_hwirq(struct hfc_multi *hc) +{ + hc->hw.r_irq_ctrl |= V_GLOB_IRQ_EN; + HFC_outb(hc, R_IRQ_CTRL, hc->hw.r_irq_ctrl); +} + +static void +disable_hwirq(struct hfc_multi *hc) +{ + hc->hw.r_irq_ctrl &= ~((u_char)V_GLOB_IRQ_EN); + HFC_outb(hc, R_IRQ_CTRL, hc->hw.r_irq_ctrl); +} + +#define NUM_EC 2 +#define MAX_TDM_CHAN 32 + + +inline void +enablepcibridge(struct hfc_multi *c) +{ + HFC_outb(c, R_BRG_PCM_CFG, (0x0 << 6) | 0x3); /* was _io before */ +} + +inline void +disablepcibridge(struct hfc_multi *c) +{ + HFC_outb(c, R_BRG_PCM_CFG, (0x0 << 6) | 0x2); /* was _io before */ +} + +inline unsigned char +readpcibridge(struct hfc_multi *hc, unsigned char address) +{ + unsigned short cipv; + unsigned char data; + + if (!hc->pci_iobase) + return 0; + + /* slow down a PCI read access by 1 PCI clock cycle */ + HFC_outb(hc, R_CTRL, 0x4); /*was _io before*/ + + if (address == 0) + cipv = 0x4000; + else + cipv = 0x5800; + + /* select local bridge port address by writing to CIP port */ + /* data = HFC_inb(c, cipv); * was _io before */ + outw(cipv, hc->pci_iobase + 4); + data = inb(hc->pci_iobase); + + /* restore R_CTRL for normal PCI read cycle speed */ + HFC_outb(hc, R_CTRL, 0x0); /* was _io before */ + + return data; +} + +inline void +writepcibridge(struct hfc_multi *hc, unsigned char address, unsigned char data) +{ + unsigned short cipv; + unsigned int datav; + + if (!hc->pci_iobase) + return; + + if (address == 0) + cipv = 0x4000; + else + cipv = 0x5800; + + /* select local bridge port address by writing to CIP port */ + outw(cipv, hc->pci_iobase + 4); + /* define a 32 bit dword with 4 identical bytes for write sequence */ + datav = data | ((__u32) data << 8) | ((__u32) data << 16) | + ((__u32) data << 24); + + /* + * write this 32 bit dword to the bridge data port + * this will initiate a write sequence of up to 4 writes to the same + * address on the local bus interface the number of write accesses + * is undefined but >=1 and depends on the next PCI transaction + * during write sequence on the local bus + */ + outl(datav, hc->pci_iobase); +} + +inline void +cpld_set_reg(struct hfc_multi *hc, unsigned char reg) +{ + /* Do data pin read low byte */ + HFC_outb(hc, R_GPIO_OUT1, reg); +} + +inline void +cpld_write_reg(struct hfc_multi *hc, unsigned char reg, unsigned char val) +{ + cpld_set_reg(hc, reg); + + enablepcibridge(hc); + writepcibridge(hc, 1, val); + disablepcibridge(hc); + + return; +} + +inline unsigned char +cpld_read_reg(struct hfc_multi *hc, unsigned char reg) +{ + unsigned char bytein; + + cpld_set_reg(hc, reg); + + /* Do data pin read low byte */ + HFC_outb(hc, R_GPIO_OUT1, reg); + + enablepcibridge(hc); + bytein = readpcibridge(hc, 1); + disablepcibridge(hc); + + return bytein; +} + +inline void +vpm_write_address(struct hfc_multi *hc, unsigned short addr) +{ + cpld_write_reg(hc, 0, 0xff & addr); + cpld_write_reg(hc, 1, 0x01 & (addr >> 8)); +} + +inline unsigned short +vpm_read_address(struct hfc_multi *c) +{ + unsigned short addr; + unsigned short highbit; + + addr = cpld_read_reg(c, 0); + highbit = cpld_read_reg(c, 1); + + addr = addr | (highbit << 8); + + return addr & 0x1ff; +} + +inline unsigned char +vpm_in(struct hfc_multi *c, int which, unsigned short addr) +{ + unsigned char res; + + vpm_write_address(c, addr); + + if (!which) + cpld_set_reg(c, 2); + else + cpld_set_reg(c, 3); + + enablepcibridge(c); + res = readpcibridge(c, 1); + disablepcibridge(c); + + cpld_set_reg(c, 0); + + return res; +} + +inline void +vpm_out(struct hfc_multi *c, int which, unsigned short addr, + unsigned char data) +{ + vpm_write_address(c, addr); + + enablepcibridge(c); + + if (!which) + cpld_set_reg(c, 2); + else + cpld_set_reg(c, 3); + + writepcibridge(c, 1, data); + + cpld_set_reg(c, 0); + + disablepcibridge(c); + + { + unsigned char regin; + regin = vpm_in(c, which, addr); + if (regin != data) + printk(KERN_DEBUG "Wrote 0x%x to register 0x%x but got back " + "0x%x\n", data, addr, regin); + } + +} + + +void +vpm_init(struct hfc_multi *wc) +{ + unsigned char reg; + unsigned int mask; + unsigned int i, x, y; + unsigned int ver; + + for (x = 0; x < NUM_EC; x++) { + /* Setup GPIO's */ + if (!x) { + ver = vpm_in(wc, x, 0x1a0); + printk(KERN_DEBUG "VPM: Chip %d: ver %02x\n", x, ver); + } + + for (y = 0; y < 4; y++) { + vpm_out(wc, x, 0x1a8 + y, 0x00); /* GPIO out */ + vpm_out(wc, x, 0x1ac + y, 0x00); /* GPIO dir */ + vpm_out(wc, x, 0x1b0 + y, 0x00); /* GPIO sel */ + } + + /* Setup TDM path - sets fsync and tdm_clk as inputs */ + reg = vpm_in(wc, x, 0x1a3); /* misc_con */ + vpm_out(wc, x, 0x1a3, reg & ~2); + + /* Setup Echo length (256 taps) */ + vpm_out(wc, x, 0x022, 1); + vpm_out(wc, x, 0x023, 0xff); + + /* Setup timeslots */ + vpm_out(wc, x, 0x02f, 0x00); + mask = 0x02020202 << (x * 4); + + /* Setup the tdm channel masks for all chips */ + for (i = 0; i < 4; i++) + vpm_out(wc, x, 0x33 - i, (mask >> (i << 3)) & 0xff); + + /* Setup convergence rate */ + printk(KERN_DEBUG "VPM: A-law mode\n"); + reg = 0x00 | 0x10 | 0x01; + vpm_out(wc, x, 0x20, reg); + printk(KERN_DEBUG "VPM reg 0x20 is %x\n", reg); + /*vpm_out(wc, x, 0x20, (0x00 | 0x08 | 0x20 | 0x10)); */ + + vpm_out(wc, x, 0x24, 0x02); + reg = vpm_in(wc, x, 0x24); + printk(KERN_DEBUG "NLP Thresh is set to %d (0x%x)\n", reg, reg); + + /* Initialize echo cans */ + for (i = 0; i < MAX_TDM_CHAN; i++) { + if (mask & (0x00000001 << i)) + vpm_out(wc, x, i, 0x00); + } + + /* + * ARM arch at least disallows a udelay of + * more than 2ms... it gives a fake "__bad_udelay" + * reference at link-time. + * long delays in kernel code are pretty sucky anyway + * for now work around it using 5 x 2ms instead of 1 x 10ms + */ + + udelay(2000); + udelay(2000); + udelay(2000); + udelay(2000); + udelay(2000); + + /* Put in bypass mode */ + for (i = 0; i < MAX_TDM_CHAN; i++) { + if (mask & (0x00000001 << i)) + vpm_out(wc, x, i, 0x01); + } + + /* Enable bypass */ + for (i = 0; i < MAX_TDM_CHAN; i++) { + if (mask & (0x00000001 << i)) + vpm_out(wc, x, 0x78 + i, 0x01); + } + + } +} + +void +vpm_check(struct hfc_multi *hctmp) +{ + unsigned char gpi2; + + gpi2 = HFC_inb(hctmp, R_GPI_IN2); + + if ((gpi2 & 0x3) != 0x3) + printk(KERN_DEBUG "Got interrupt 0x%x from VPM!\n", gpi2); +} + + +/* + * Interface to enable/disable the HW Echocan + * + * these functions are called within a spin_lock_irqsave on + * the channel instance lock, so we are not disturbed by irqs + * + * we can later easily change the interface to make other + * things configurable, for now we configure the taps + * + */ + +void +vpm_echocan_on(struct hfc_multi *hc, int ch, int taps) +{ + unsigned int timeslot; + unsigned int unit; + struct bchannel *bch = hc->chan[ch].bch; +#ifdef TXADJ + int txadj = -4; + struct sk_buff *skb; +#endif + if (hc->chan[ch].protocol != ISDN_P_B_RAW) + return; + + if (!bch) + return; + +#ifdef TXADJ + skb = _alloc_mISDN_skb(PH_CONTROL_IND, HFC_VOL_CHANGE_TX, + sizeof(int), &txadj, GFP_ATOMIC); + if (skb) + recv_Bchannel_skb(bch, skb); +#endif + + timeslot = ((ch/4)*8) + ((ch%4)*4) + 1; + unit = ch % 4; + + printk(KERN_NOTICE "vpm_echocan_on called taps [%d] on timeslot %d\n", + taps, timeslot); + + vpm_out(hc, unit, timeslot, 0x7e); +} + +void +vpm_echocan_off(struct hfc_multi *hc, int ch) +{ + unsigned int timeslot; + unsigned int unit; + struct bchannel *bch = hc->chan[ch].bch; +#ifdef TXADJ + int txadj = 0; + struct sk_buff *skb; +#endif + + if (hc->chan[ch].protocol != ISDN_P_B_RAW) + return; + + if (!bch) + return; + +#ifdef TXADJ + skb = _alloc_mISDN_skb(PH_CONTROL_IND, HFC_VOL_CHANGE_TX, + sizeof(int), &txadj, GFP_ATOMIC); + if (skb) + recv_Bchannel_skb(bch, skb); +#endif + + timeslot = ((ch/4)*8) + ((ch%4)*4) + 1; + unit = ch % 4; + + printk(KERN_NOTICE "vpm_echocan_off called on timeslot %d\n", + timeslot); + /* FILLME */ + vpm_out(hc, unit, timeslot, 0x01); +} + + +/* + * Speech Design resync feature + * NOTE: This is called sometimes outside interrupt handler. + * We must lock irqsave, so no other interrupt (other card) will occurr! + * Also multiple interrupts may nest, so must lock each access (lists, card)! + */ +static inline void +hfcmulti_resync(struct hfc_multi *locked, struct hfc_multi *newmaster, int rm) +{ + struct hfc_multi *hc, *next, *pcmmaster = 0; + u_int *plx_acc_32, pv; + u_long flags; + + spin_lock_irqsave(&HFClock, flags); + spin_lock(&plx_lock); /* must be locked inside other locks */ + + if (debug & DEBUG_HFCMULTI_PLXSD) + printk(KERN_DEBUG "%s: RESYNC(syncmaster=0x%p)\n", + __func__, syncmaster); + + /* select new master */ + if (newmaster) { + if (debug & DEBUG_HFCMULTI_PLXSD) + printk(KERN_DEBUG "using provided controller\n"); + } else { + list_for_each_entry_safe(hc, next, &HFClist, list) { + if (test_bit(HFC_CHIP_PLXSD, &hc->chip)) { + if (hc->syncronized) { + newmaster = hc; + break; + } + } + } + } + + /* Disable sync of all cards */ + list_for_each_entry_safe(hc, next, &HFClist, list) { + if (test_bit(HFC_CHIP_PLXSD, &hc->chip)) { + plx_acc_32 = (u_int *)(hc->plx_membase+PLX_GPIOC); + pv = readl(plx_acc_32); + pv &= ~PLX_SYNC_O_EN; + writel(pv, plx_acc_32); + if (test_bit(HFC_CHIP_PCM_MASTER, &hc->chip)) { + pcmmaster = hc; + if (hc->type == 1) { + if (debug & DEBUG_HFCMULTI_PLXSD) + printk(KERN_DEBUG + "Schedule SYNC_I\n"); + hc->e1_resync |= 1; /* get SYNC_I */ + } + } + } + } + + if (newmaster) { + hc = newmaster; + if (debug & DEBUG_HFCMULTI_PLXSD) + printk(KERN_DEBUG "id=%d (0x%p) = syncronized with " + "interface.\n", hc->id, hc); + /* Enable new sync master */ + plx_acc_32 = (u_int *)(hc->plx_membase+PLX_GPIOC); + pv = readl(plx_acc_32); + pv |= PLX_SYNC_O_EN; + writel(pv, plx_acc_32); + /* switch to jatt PLL, if not disabled by RX_SYNC */ + if (hc->type == 1 && !test_bit(HFC_CHIP_RX_SYNC, &hc->chip)) { + if (debug & DEBUG_HFCMULTI_PLXSD) + printk(KERN_DEBUG "Schedule jatt PLL\n"); + hc->e1_resync |= 2; /* switch to jatt */ + } + } else { + if (pcmmaster) { + hc = pcmmaster; + if (debug & DEBUG_HFCMULTI_PLXSD) + printk(KERN_DEBUG + "id=%d (0x%p) = PCM master syncronized " + "with QUARTZ\n", hc->id, hc); + if (hc->type == 1) { + /* Use the crystal clock for the PCM + master card */ + if (debug & DEBUG_HFCMULTI_PLXSD) + printk(KERN_DEBUG + "Schedule QUARTZ for HFC-E1\n"); + hc->e1_resync |= 4; /* switch quartz */ + } else { + if (debug & DEBUG_HFCMULTI_PLXSD) + printk(KERN_DEBUG + "QUARTZ is automatically " + "enabled by HFC-%dS\n", hc->type); + } + plx_acc_32 = (u_int *)(hc->plx_membase+PLX_GPIOC); + pv = readl(plx_acc_32); + pv |= PLX_SYNC_O_EN; + writel(pv, plx_acc_32); + } else + if (!rm) + printk(KERN_ERR "%s no pcm master, this MUST " + "not happen!\n", __func__); + } + syncmaster = newmaster; + + spin_unlock(&plx_lock); + spin_unlock_irqrestore(&HFClock, flags); +} + +/* This must be called AND hc must be locked irqsave!!! */ +inline void +plxsd_checksync(struct hfc_multi *hc, int rm) +{ + if (hc->syncronized) { + if (syncmaster == NULL) { + if (debug & DEBUG_HFCMULTI_PLXSD) + printk(KERN_WARNING "%s: GOT sync on card %d" + " (id=%d)\n", __func__, hc->id + 1, + hc->id); + hfcmulti_resync(hc, hc, rm); + } + } else { + if (syncmaster == hc) { + if (debug & DEBUG_HFCMULTI_PLXSD) + printk(KERN_WARNING "%s: LOST sync on card %d" + " (id=%d)\n", __func__, hc->id + 1, + hc->id); + hfcmulti_resync(hc, NULL, rm); + } + } +} + + +/* + * free hardware resources used by driver + */ +static void +release_io_hfcmulti(struct hfc_multi *hc) +{ + u_int *plx_acc_32, pv; + u_long plx_flags; + + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG "%s: entered\n", __func__); + + /* soft reset also masks all interrupts */ + hc->hw.r_cirm |= V_SRES; + HFC_outb(hc, R_CIRM, hc->hw.r_cirm); + udelay(1000); + hc->hw.r_cirm &= ~V_SRES; + HFC_outb(hc, R_CIRM, hc->hw.r_cirm); + udelay(1000); /* instead of 'wait' that may cause locking */ + + /* release Speech Design card, if PLX was initialized */ + if (test_bit(HFC_CHIP_PLXSD, &hc->chip) && hc->plx_membase) { + if (debug & DEBUG_HFCMULTI_PLXSD) + printk(KERN_DEBUG "%s: release PLXSD card %d\n", + __func__, hc->id + 1); + spin_lock_irqsave(&plx_lock, plx_flags); + plx_acc_32 = (u_int *)(hc->plx_membase+PLX_GPIOC); + writel(PLX_GPIOC_INIT, plx_acc_32); + pv = readl(plx_acc_32); + /* Termination off */ + pv &= ~PLX_TERM_ON; + /* Disconnect the PCM */ + pv |= PLX_SLAVE_EN_N; + pv &= ~PLX_MASTER_EN; + pv &= ~PLX_SYNC_O_EN; + /* Put the DSP in Reset */ + pv &= ~PLX_DSP_RES_N; + writel(pv, plx_acc_32); + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_WARNING "%s: PCM off: PLX_GPIO=%x\n", + __func__, pv); + spin_unlock_irqrestore(&plx_lock, plx_flags); + } + + /* disable memory mapped ports / io ports */ + test_and_clear_bit(HFC_CHIP_PLXSD, &hc->chip); /* prevent resync */ + pci_write_config_word(hc->pci_dev, PCI_COMMAND, 0); + if (hc->pci_membase) + iounmap((void *)hc->pci_membase); + if (hc->plx_membase) + iounmap((void *)hc->plx_membase); + if (hc->pci_iobase) + release_region(hc->pci_iobase, 8); + + if (hc->pci_dev) { + pci_disable_device(hc->pci_dev); + pci_set_drvdata(hc->pci_dev, NULL); + } + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG "%s: done\n", __func__); +} + +/* + * function called to reset the HFC chip. A complete software reset of chip + * and fifos is done. All configuration of the chip is done. + */ + +static int +init_chip(struct hfc_multi *hc) +{ + u_long flags, val, val2 = 0, rev; + int i, err = 0; + u_char r_conf_en, rval; + u_int *plx_acc_32, pv; + u_long plx_flags, hfc_flags; + int plx_count; + struct hfc_multi *pos, *next, *plx_last_hc; + + spin_lock_irqsave(&hc->lock, flags); + /* reset all registers */ + memset(&hc->hw, 0, sizeof(struct hfcm_hw)); + + /* revision check */ + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG "%s: entered\n", __func__); + val = HFC_inb(hc, R_CHIP_ID)>>4; + if (val != 0x8 && val != 0xc && val != 0xe) { + printk(KERN_INFO "HFC_multi: unknown CHIP_ID:%x\n", (u_int)val); + err = -EIO; + goto out; + } + rev = HFC_inb(hc, R_CHIP_RV); + printk(KERN_INFO + "HFC_multi: detected HFC with chip ID=0x%lx revision=%ld%s\n", + val, rev, (rev == 0) ? " (old FIFO handling)" : ""); + if (rev == 0) { + test_and_set_bit(HFC_CHIP_REVISION0, &hc->chip); + printk(KERN_WARNING + "HFC_multi: NOTE: Your chip is revision 0, " + "ask Cologne Chip for update. Newer chips " + "have a better FIFO handling. Old chips " + "still work but may have slightly lower " + "HDLC transmit performance.\n"); + } + if (rev > 1) { + printk(KERN_WARNING "HFC_multi: WARNING: This driver doesn't " + "consider chip revision = %ld. The chip / " + "bridge may not work.\n", rev); + } + + /* set s-ram size */ + hc->Flen = 0x10; + hc->Zmin = 0x80; + hc->Zlen = 384; + hc->DTMFbase = 0x1000; + if (test_bit(HFC_CHIP_EXRAM_128, &hc->chip)) { + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG "%s: changing to 128K extenal RAM\n", + __func__); + hc->hw.r_ctrl |= V_EXT_RAM; + hc->hw.r_ram_sz = 1; + hc->Flen = 0x20; + hc->Zmin = 0xc0; + hc->Zlen = 1856; + hc->DTMFbase = 0x2000; + } + if (test_bit(HFC_CHIP_EXRAM_512, &hc->chip)) { + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG "%s: changing to 512K extenal RAM\n", + __func__); + hc->hw.r_ctrl |= V_EXT_RAM; + hc->hw.r_ram_sz = 2; + hc->Flen = 0x20; + hc->Zmin = 0xc0; + hc->Zlen = 8000; + hc->DTMFbase = 0x2000; + } + hc->max_trans = poll << 1; + if (hc->max_trans > hc->Zlen) + hc->max_trans = hc->Zlen; + + /* Speech Design PLX bridge */ + if (test_bit(HFC_CHIP_PLXSD, &hc->chip)) { + if (debug & DEBUG_HFCMULTI_PLXSD) + printk(KERN_DEBUG "%s: initializing PLXSD card %d\n", + __func__, hc->id + 1); + spin_lock_irqsave(&plx_lock, plx_flags); + plx_acc_32 = (u_int *)(hc->plx_membase+PLX_GPIOC); + writel(PLX_GPIOC_INIT, plx_acc_32); + pv = readl(plx_acc_32); + /* The first and the last cards are terminating the PCM bus */ + pv |= PLX_TERM_ON; /* hc is currently the last */ + /* Disconnect the PCM */ + pv |= PLX_SLAVE_EN_N; + pv &= ~PLX_MASTER_EN; + pv &= ~PLX_SYNC_O_EN; + /* Put the DSP in Reset */ + pv &= ~PLX_DSP_RES_N; + writel(pv, plx_acc_32); + spin_unlock_irqrestore(&plx_lock, plx_flags); + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_WARNING "%s: slave/term: PLX_GPIO=%x\n", + __func__, pv); + /* + * If we are the 3rd PLXSD card or higher, we must turn + * termination of last PLXSD card off. + */ + spin_lock_irqsave(&HFClock, hfc_flags); + plx_count = 0; + plx_last_hc = NULL; + list_for_each_entry_safe(pos, next, &HFClist, list) { + if (test_bit(HFC_CHIP_PLXSD, &pos->chip)) { + plx_count++; + if (pos != hc) + plx_last_hc = pos; + } + } + if (plx_count >= 3) { + if (debug & DEBUG_HFCMULTI_PLXSD) + printk(KERN_DEBUG "%s: card %d is between, so " + "we disable termination\n", + __func__, plx_last_hc->id + 1); + spin_lock_irqsave(&plx_lock, plx_flags); + plx_acc_32 = (u_int *)(plx_last_hc->plx_membase + + PLX_GPIOC); + pv = readl(plx_acc_32); + pv &= ~PLX_TERM_ON; + writel(pv, plx_acc_32); + spin_unlock_irqrestore(&plx_lock, plx_flags); + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_WARNING "%s: term off: PLX_GPIO=%x\n", + __func__, pv); + } + spin_unlock_irqrestore(&HFClock, hfc_flags); + hc->hw.r_pcm_md0 = V_F0_LEN; /* shift clock for DSP */ + } + + /* we only want the real Z2 read-pointer for revision > 0 */ + if (!test_bit(HFC_CHIP_REVISION0, &hc->chip)) + hc->hw.r_ram_sz |= V_FZ_MD; + + /* select pcm mode */ + if (test_bit(HFC_CHIP_PCM_SLAVE, &hc->chip)) { + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG "%s: setting PCM into slave mode\n", + __func__); + } else + if (test_bit(HFC_CHIP_PCM_MASTER, &hc->chip) && !plxsd_master) { + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG "%s: setting PCM into master mode\n", + __func__); + hc->hw.r_pcm_md0 |= V_PCM_MD; + } else { + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG "%s: performing PCM auto detect\n", + __func__); + } + + /* soft reset */ + HFC_outb(hc, R_CTRL, hc->hw.r_ctrl); + HFC_outb(hc, R_RAM_SZ, hc->hw.r_ram_sz); + HFC_outb(hc, R_FIFO_MD, 0); + hc->hw.r_cirm = V_SRES | V_HFCRES | V_PCMRES | V_STRES | V_RLD_EPR; + HFC_outb(hc, R_CIRM, hc->hw.r_cirm); + udelay(100); + hc->hw.r_cirm = 0; + HFC_outb(hc, R_CIRM, hc->hw.r_cirm); + udelay(100); + HFC_outb(hc, R_RAM_SZ, hc->hw.r_ram_sz); + + /* Speech Design PLX bridge pcm and sync mode */ + if (test_bit(HFC_CHIP_PLXSD, &hc->chip)) { + spin_lock_irqsave(&plx_lock, plx_flags); + plx_acc_32 = (u_int *)(hc->plx_membase+PLX_GPIOC); + pv = readl(plx_acc_32); + /* Connect PCM */ + if (hc->hw.r_pcm_md0 & V_PCM_MD) { + pv |= PLX_MASTER_EN | PLX_SLAVE_EN_N; + pv |= PLX_SYNC_O_EN; + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_WARNING "%s: master: PLX_GPIO=%x\n", + __func__, pv); + } else { + pv &= ~(PLX_MASTER_EN | PLX_SLAVE_EN_N); + pv &= ~PLX_SYNC_O_EN; + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_WARNING "%s: slave: PLX_GPIO=%x\n", + __func__, pv); + } + writel(pv, plx_acc_32); + spin_unlock_irqrestore(&plx_lock, plx_flags); + } + + /* PCM setup */ + HFC_outb(hc, R_PCM_MD0, hc->hw.r_pcm_md0 | 0x90); + if (hc->slots == 32) + HFC_outb(hc, R_PCM_MD1, 0x00); + if (hc->slots == 64) + HFC_outb(hc, R_PCM_MD1, 0x10); + if (hc->slots == 128) + HFC_outb(hc, R_PCM_MD1, 0x20); + HFC_outb(hc, R_PCM_MD0, hc->hw.r_pcm_md0 | 0xa0); + if (test_bit(HFC_CHIP_PLXSD, &hc->chip)) + HFC_outb(hc, R_PCM_MD2, V_SYNC_SRC); /* sync via SYNC_I / O */ + else + HFC_outb(hc, R_PCM_MD2, 0x00); /* sync from interface */ + HFC_outb(hc, R_PCM_MD0, hc->hw.r_pcm_md0 | 0x00); + for (i = 0; i < 256; i++) { + HFC_outb_nodebug(hc, R_SLOT, i); + HFC_outb_nodebug(hc, A_SL_CFG, 0); + HFC_outb_nodebug(hc, A_CONF, 0); + hc->slot_owner[i] = -1; + } + + /* set clock speed */ + if (test_bit(HFC_CHIP_CLOCK2, &hc->chip)) { + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG + "%s: setting double clock\n", __func__); + HFC_outb(hc, R_BRG_PCM_CFG, V_PCM_CLK); + } + + /* B410P GPIO */ + if (test_bit(HFC_CHIP_B410P, &hc->chip)) { + printk(KERN_NOTICE "Setting GPIOs\n"); + HFC_outb(hc, R_GPIO_SEL, 0x30); + HFC_outb(hc, R_GPIO_EN1, 0x3); + udelay(1000); + printk(KERN_NOTICE "calling vpm_init\n"); + vpm_init(hc); + } + + /* check if R_F0_CNT counts (8 kHz frame count) */ + val = HFC_inb(hc, R_F0_CNTL); + val += HFC_inb(hc, R_F0_CNTH) << 8; + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG + "HFC_multi F0_CNT %ld after reset\n", val); + spin_unlock_irqrestore(&hc->lock, flags); + set_current_state(TASK_UNINTERRUPTIBLE); + schedule_timeout((HZ/100)?:1); /* Timeout minimum 10ms */ + spin_lock_irqsave(&hc->lock, flags); + val2 = HFC_inb(hc, R_F0_CNTL); + val2 += HFC_inb(hc, R_F0_CNTH) << 8; + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG + "HFC_multi F0_CNT %ld after 10 ms (1st try)\n", + val2); + if (val2 >= val+8) { /* 1 ms */ + /* it counts, so we keep the pcm mode */ + if (test_bit(HFC_CHIP_PCM_MASTER, &hc->chip)) + printk(KERN_INFO "controller is PCM bus MASTER\n"); + else + if (test_bit(HFC_CHIP_PCM_SLAVE, &hc->chip)) + printk(KERN_INFO "controller is PCM bus SLAVE\n"); + else { + test_and_set_bit(HFC_CHIP_PCM_SLAVE, &hc->chip); + printk(KERN_INFO "controller is PCM bus SLAVE " + "(auto detected)\n"); + } + } else { + /* does not count */ + if (test_bit(HFC_CHIP_PCM_MASTER, &hc->chip)) { +controller_fail: + printk(KERN_ERR "HFC_multi ERROR, getting no 125us " + "pulse. Seems that controller fails.\n"); + err = -EIO; + goto out; + } + if (test_bit(HFC_CHIP_PCM_SLAVE, &hc->chip)) { + printk(KERN_INFO "controller is PCM bus SLAVE " + "(ignoring missing PCM clock)\n"); + } else { + /* only one pcm master */ + if (test_bit(HFC_CHIP_PLXSD, &hc->chip) + && plxsd_master) { + printk(KERN_ERR "HFC_multi ERROR, no clock " + "on another Speech Design card found. " + "Please be sure to connect PCM cable.\n"); + err = -EIO; + goto out; + } + /* retry with master clock */ + if (test_bit(HFC_CHIP_PLXSD, &hc->chip)) { + spin_lock_irqsave(&plx_lock, plx_flags); + plx_acc_32 = (u_int *)(hc->plx_membase + + PLX_GPIOC); + pv = readl(plx_acc_32); + pv |= PLX_MASTER_EN | PLX_SLAVE_EN_N; + pv |= PLX_SYNC_O_EN; + writel(pv, plx_acc_32); + spin_unlock_irqrestore(&plx_lock, plx_flags); + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_WARNING "%s: master: PLX_GPIO" + "=%x\n", __func__, pv); + } + hc->hw.r_pcm_md0 |= V_PCM_MD; + HFC_outb(hc, R_PCM_MD0, hc->hw.r_pcm_md0 | 0x00); + spin_unlock_irqrestore(&hc->lock, flags); + set_current_state(TASK_UNINTERRUPTIBLE); + schedule_timeout((HZ/100)?:1); /* Timeout min. 10ms */ + spin_lock_irqsave(&hc->lock, flags); + val2 = HFC_inb(hc, R_F0_CNTL); + val2 += HFC_inb(hc, R_F0_CNTH) << 8; + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG "HFC_multi F0_CNT %ld after " + "10 ms (2nd try)\n", val2); + if (val2 >= val+8) { /* 1 ms */ + test_and_set_bit(HFC_CHIP_PCM_MASTER, + &hc->chip); + printk(KERN_INFO "controller is PCM bus MASTER " + "(auto detected)\n"); + } else + goto controller_fail; + } + } + + /* Release the DSP Reset */ + if (test_bit(HFC_CHIP_PLXSD, &hc->chip)) { + if (test_bit(HFC_CHIP_PCM_MASTER, &hc->chip)) + plxsd_master = 1; + spin_lock_irqsave(&plx_lock, plx_flags); + plx_acc_32 = (u_int *)(hc->plx_membase+PLX_GPIOC); + pv = readl(plx_acc_32); + pv |= PLX_DSP_RES_N; + writel(pv, plx_acc_32); + spin_unlock_irqrestore(&plx_lock, plx_flags); + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_WARNING "%s: reset off: PLX_GPIO=%x\n", + __func__, pv); + } + + /* pcm id */ + if (hc->pcm) + printk(KERN_INFO "controller has given PCM BUS ID %d\n", + hc->pcm); + else { + if (test_bit(HFC_CHIP_PCM_MASTER, &hc->chip) + || test_bit(HFC_CHIP_PLXSD, &hc->chip)) { + PCM_cnt++; /* SD has proprietary bridging */ + } + hc->pcm = PCM_cnt; + printk(KERN_INFO "controller has PCM BUS ID %d " + "(auto selected)\n", hc->pcm); + } + + /* set up timer */ + HFC_outb(hc, R_TI_WD, poll_timer); + hc->hw.r_irqmsk_misc |= V_TI_IRQMSK; + + /* + * set up 125us interrupt, only if function pointer is available + * and module parameter timer is set + */ + if (timer && hfc_interrupt && register_interrupt) { + /* only one chip should use this interrupt */ + timer = 0; + interrupt_registered = 1; + hc->hw.r_irqmsk_misc |= V_PROC_IRQMSK; + /* deactivate other interrupts in ztdummy */ + register_interrupt(); + } + + /* set E1 state machine IRQ */ + if (hc->type == 1) + hc->hw.r_irqmsk_misc |= V_STA_IRQMSK; + + /* set DTMF detection */ + if (test_bit(HFC_CHIP_DTMF, &hc->chip)) { + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG "%s: enabling DTMF detection " + "for all B-channel\n", __func__); + hc->hw.r_dtmf = V_DTMF_EN | V_DTMF_STOP; + if (test_bit(HFC_CHIP_ULAW, &hc->chip)) + hc->hw.r_dtmf |= V_ULAW_SEL; + HFC_outb(hc, R_DTMF_N, 102 - 1); + hc->hw.r_irqmsk_misc |= V_DTMF_IRQMSK; + } + + /* conference engine */ + if (test_bit(HFC_CHIP_ULAW, &hc->chip)) + r_conf_en = V_CONF_EN | V_ULAW; + else + r_conf_en = V_CONF_EN; + HFC_outb(hc, R_CONF_EN, r_conf_en); + + /* setting leds */ + switch (hc->leds) { + case 1: /* HFC-E1 OEM */ + if (test_bit(HFC_CHIP_WATCHDOG, &hc->chip)) + HFC_outb(hc, R_GPIO_SEL, 0x32); + else + HFC_outb(hc, R_GPIO_SEL, 0x30); + + HFC_outb(hc, R_GPIO_EN1, 0x0f); + HFC_outb(hc, R_GPIO_OUT1, 0x00); + + HFC_outb(hc, R_GPIO_EN0, V_GPIO_EN2 | V_GPIO_EN3); + break; + + case 2: /* HFC-4S OEM */ + case 3: + HFC_outb(hc, R_GPIO_SEL, 0xf0); + HFC_outb(hc, R_GPIO_EN1, 0xff); + HFC_outb(hc, R_GPIO_OUT1, 0x00); + break; + } + + /* set master clock */ + if (hc->masterclk >= 0) { + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG "%s: setting ST master clock " + "to port %d (0..%d)\n", + __func__, hc->masterclk, hc->ports-1); + hc->hw.r_st_sync = hc->masterclk | V_AUTO_SYNC; + HFC_outb(hc, R_ST_SYNC, hc->hw.r_st_sync); + } + + /* setting misc irq */ + HFC_outb(hc, R_IRQMSK_MISC, hc->hw.r_irqmsk_misc); + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG "r_irqmsk_misc.2: 0x%x\n", + hc->hw.r_irqmsk_misc); + + /* RAM access test */ + HFC_outb(hc, R_RAM_ADDR0, 0); + HFC_outb(hc, R_RAM_ADDR1, 0); + HFC_outb(hc, R_RAM_ADDR2, 0); + for (i = 0; i < 256; i++) { + HFC_outb_nodebug(hc, R_RAM_ADDR0, i); + HFC_outb_nodebug(hc, R_RAM_DATA, ((i*3)&0xff)); + } + for (i = 0; i < 256; i++) { + HFC_outb_nodebug(hc, R_RAM_ADDR0, i); + HFC_inb_nodebug(hc, R_RAM_DATA); + rval = HFC_inb_nodebug(hc, R_INT_DATA); + if (rval != ((i * 3) & 0xff)) { + printk(KERN_DEBUG + "addr:%x val:%x should:%x\n", i, rval, + (i * 3) & 0xff); + err++; + } + } + if (err) { + printk(KERN_DEBUG "aborting - %d RAM access errors\n", err); + err = -EIO; + goto out; + } + + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG "%s: done\n", __func__); +out: + spin_unlock_irqrestore(&hc->lock, flags); + return err; +} + + +/* + * control the watchdog + */ +static void +hfcmulti_watchdog(struct hfc_multi *hc) +{ + hc->wdcount++; + + if (hc->wdcount > 10) { + hc->wdcount = 0; + hc->wdbyte = hc->wdbyte == V_GPIO_OUT2 ? + V_GPIO_OUT3 : V_GPIO_OUT2; + + /* printk("Sending Watchdog Kill %x\n",hc->wdbyte); */ + HFC_outb(hc, R_GPIO_EN0, V_GPIO_EN2 | V_GPIO_EN3); + HFC_outb(hc, R_GPIO_OUT0, hc->wdbyte); + } +} + + + +/* + * output leds + */ +static void +hfcmulti_leds(struct hfc_multi *hc) +{ + unsigned long lled; + unsigned long leddw; + int i, state, active, leds; + struct dchannel *dch; + int led[4]; + + hc->ledcount += poll; + if (hc->ledcount > 4096) { + hc->ledcount -= 4096; + hc->ledstate = 0xAFFEAFFE; + } + + switch (hc->leds) { + case 1: /* HFC-E1 OEM */ + /* 2 red blinking: NT mode deactivate + * 2 red steady: TE mode deactivate + * left green: L1 active + * left red: frame sync, but no L1 + * right green: L2 active + */ + if (hc->chan[hc->dslot].sync != 2) { /* no frame sync */ + if (hc->chan[hc->dslot].dch->dev.D.protocol + != ISDN_P_NT_E1) { + led[0] = 1; + led[1] = 1; + } else if (hc->ledcount>>11) { + led[0] = 1; + led[1] = 1; + } else { + led[0] = 0; + led[1] = 0; + } + led[2] = 0; + led[3] = 0; + } else { /* with frame sync */ + /* TODO make it work */ + led[0] = 0; + led[1] = 0; + led[2] = 0; + led[3] = 1; + } + leds = (led[0] | (led[1]<<2) | (led[2]<<1) | (led[3]<<3))^0xF; + /* leds are inverted */ + if (leds != (int)hc->ledstate) { + HFC_outb_nodebug(hc, R_GPIO_OUT1, leds); + hc->ledstate = leds; + } + break; + + case 2: /* HFC-4S OEM */ + /* red blinking = PH_DEACTIVATE NT Mode + * red steady = PH_DEACTIVATE TE Mode + * green steady = PH_ACTIVATE + */ + for (i = 0; i < 4; i++) { + state = 0; + active = -1; + dch = hc->chan[(i << 2) | 2].dch; + if (dch) { + state = dch->state; + if (dch->dev.D.protocol == ISDN_P_NT_S0) + active = 3; + else + active = 7; + } + if (state) { + if (state == active) { + led[i] = 1; /* led green */ + } else + if (dch->dev.D.protocol == ISDN_P_TE_S0) + /* TE mode: led red */ + led[i] = 2; + else + if (hc->ledcount>>11) + /* led red */ + led[i] = 2; + else + /* led off */ + led[i] = 0; + } else + led[i] = 0; /* led off */ + } + if (test_bit(HFC_CHIP_B410P, &hc->chip)) { + leds = 0; + for (i = 0; i < 4; i++) { + if (led[i] == 1) { + /*green*/ + leds |= (0x2 << (i * 2)); + } else if (led[i] == 2) { + /*red*/ + leds |= (0x1 << (i * 2)); + } + } + if (leds != (int)hc->ledstate) { + vpm_out(hc, 0, 0x1a8 + 3, leds); + hc->ledstate = leds; + } + } else { + leds = ((led[3] > 0) << 0) | ((led[1] > 0) << 1) | + ((led[0] > 0) << 2) | ((led[2] > 0) << 3) | + ((led[3] & 1) << 4) | ((led[1] & 1) << 5) | + ((led[0] & 1) << 6) | ((led[2] & 1) << 7); + if (leds != (int)hc->ledstate) { + HFC_outb_nodebug(hc, R_GPIO_EN1, leds & 0x0F); + HFC_outb_nodebug(hc, R_GPIO_OUT1, leds >> 4); + hc->ledstate = leds; + } + } + break; + + case 3: /* HFC 1S/2S Beronet */ + /* red blinking = PH_DEACTIVATE NT Mode + * red steady = PH_DEACTIVATE TE Mode + * green steady = PH_ACTIVATE + */ + for (i = 0; i < 2; i++) { + state = 0; + active = -1; + dch = hc->chan[(i << 2) | 2].dch; + if (dch) { + state = dch->state; + if (dch->dev.D.protocol == ISDN_P_NT_S0) + active = 3; + else + active = 7; + } + if (state) { + if (state == active) { + led[i] = 1; /* led green */ + } else + if (dch->dev.D.protocol == ISDN_P_TE_S0) + /* TE mode: led red */ + led[i] = 2; + else + if (hc->ledcount >> 11) + /* led red */ + led[i] = 2; + else + /* led off */ + led[i] = 0; + } else + led[i] = 0; /* led off */ + } + + + leds = (led[0] > 0) | ((led[1] > 0)<<1) | ((led[0]&1)<<2) + | ((led[1]&1)<<3); + if (leds != (int)hc->ledstate) { + HFC_outb_nodebug(hc, R_GPIO_EN1, + ((led[0] > 0) << 2) | ((led[1] > 0) << 3)); + HFC_outb_nodebug(hc, R_GPIO_OUT1, + ((led[0] & 1) << 2) | ((led[1] & 1) << 3)); + hc->ledstate = leds; + } + break; + case 8: /* HFC 8S+ Beronet */ + lled = 0; + + for (i = 0; i < 8; i++) { + state = 0; + active = -1; + dch = hc->chan[(i << 2) | 2].dch; + if (dch) { + state = dch->state; + if (dch->dev.D.protocol == ISDN_P_NT_S0) + active = 3; + else + active = 7; + } + if (state) { + if (state == active) { + lled |= 0 << i; + } else + if (hc->ledcount >> 11) + lled |= 0 << i; + else + lled |= 1 << i; + } else + lled |= 1 << i; + } + leddw = lled << 24 | lled << 16 | lled << 8 | lled; + if (leddw != hc->ledstate) { + /* HFC_outb(hc, R_BRG_PCM_CFG, 1); + HFC_outb(c, R_BRG_PCM_CFG, (0x0 << 6) | 0x3); */ + /* was _io before */ + HFC_outb_nodebug(hc, R_BRG_PCM_CFG, 1 | V_PCM_CLK); + outw(0x4000, hc->pci_iobase + 4); + outl(leddw, hc->pci_iobase); + HFC_outb_nodebug(hc, R_BRG_PCM_CFG, V_PCM_CLK); + hc->ledstate = leddw; + } + break; + } +} +/* + * read dtmf coefficients + */ + +static void +hfcmulti_dtmf(struct hfc_multi *hc) +{ + s32 *coeff; + u_int mantissa; + int co, ch; + struct bchannel *bch = NULL; + u8 exponent; + int dtmf = 0; + int addr; + u16 w_float; + struct sk_buff *skb; + struct mISDNhead *hh; + + if (debug & DEBUG_HFCMULTI_DTMF) + printk(KERN_DEBUG "%s: dtmf detection irq\n", __func__); + for (ch = 0; ch <= 31; ch++) { + /* only process enabled B-channels */ + bch = hc->chan[ch].bch; + if (!bch) + continue; + if (!hc->created[hc->chan[ch].port]) + continue; + if (!test_bit(FLG_TRANSPARENT, &bch->Flags)) + continue; + if (debug & DEBUG_HFCMULTI_DTMF) + printk(KERN_DEBUG "%s: dtmf channel %d:", + __func__, ch); + coeff = &(hc->chan[ch].coeff[hc->chan[ch].coeff_count * 16]); + dtmf = 1; + for (co = 0; co < 8; co++) { + /* read W(n-1) coefficient */ + addr = hc->DTMFbase + ((co<<7) | (ch<<2)); + HFC_outb_nodebug(hc, R_RAM_ADDR0, addr); + HFC_outb_nodebug(hc, R_RAM_ADDR1, addr>>8); + HFC_outb_nodebug(hc, R_RAM_ADDR2, (addr>>16) + | V_ADDR_INC); + w_float = HFC_inb_nodebug(hc, R_RAM_DATA); + w_float |= (HFC_inb_nodebug(hc, R_RAM_DATA) << 8); + if (debug & DEBUG_HFCMULTI_DTMF) + printk(" %04x", w_float); + + /* decode float (see chip doc) */ + mantissa = w_float & 0x0fff; + if (w_float & 0x8000) + mantissa |= 0xfffff000; + exponent = (w_float>>12) & 0x7; + if (exponent) { + mantissa ^= 0x1000; + mantissa <<= (exponent-1); + } + + /* store coefficient */ + coeff[co<<1] = mantissa; + + /* read W(n) coefficient */ + w_float = HFC_inb_nodebug(hc, R_RAM_DATA); + w_float |= (HFC_inb_nodebug(hc, R_RAM_DATA) << 8); + if (debug & DEBUG_HFCMULTI_DTMF) + printk(" %04x", w_float); + + /* decode float (see chip doc) */ + mantissa = w_float & 0x0fff; + if (w_float & 0x8000) + mantissa |= 0xfffff000; + exponent = (w_float>>12) & 0x7; + if (exponent) { + mantissa ^= 0x1000; + mantissa <<= (exponent-1); + } + + /* store coefficient */ + coeff[(co<<1)|1] = mantissa; + } + if (debug & DEBUG_HFCMULTI_DTMF) + printk("%s: DTMF ready %08x %08x %08x %08x " + "%08x %08x %08x %08x\n", __func__, + coeff[0], coeff[1], coeff[2], coeff[3], + coeff[4], coeff[5], coeff[6], coeff[7]); + hc->chan[ch].coeff_count++; + if (hc->chan[ch].coeff_count == 8) { + hc->chan[ch].coeff_count = 0; + skb = mI_alloc_skb(512, GFP_ATOMIC); + if (!skb) { + printk(KERN_WARNING "%s: No memory for skb\n", + __func__); + continue; + } + hh = mISDN_HEAD_P(skb); + hh->prim = PH_CONTROL_IND; + hh->id = DTMF_HFC_COEF; + memcpy(skb_put(skb, 512), hc->chan[ch].coeff, 512); + recv_Bchannel_skb(bch, skb); + } + } + + /* restart DTMF processing */ + hc->dtmf = dtmf; + if (dtmf) + HFC_outb_nodebug(hc, R_DTMF, hc->hw.r_dtmf | V_RST_DTMF); +} + + +/* + * fill fifo as much as possible + */ + +static void +hfcmulti_tx(struct hfc_multi *hc, int ch) +{ + int i, ii, temp, len = 0; + int Zspace, z1, z2; /* must be int for calculation */ + int Fspace, f1, f2; + u_char *d; + int *txpending, slot_tx; + struct bchannel *bch; + struct dchannel *dch; + struct sk_buff **sp = NULL; + int *idxp; + + bch = hc->chan[ch].bch; + dch = hc->chan[ch].dch; + if ((!dch) && (!bch)) + return; + + txpending = &hc->chan[ch].txpending; + slot_tx = hc->chan[ch].slot_tx; + if (dch) { + if (!test_bit(FLG_ACTIVE, &dch->Flags)) + return; + sp = &dch->tx_skb; + idxp = &dch->tx_idx; + } else { + if (!test_bit(FLG_ACTIVE, &bch->Flags)) + return; + sp = &bch->tx_skb; + idxp = &bch->tx_idx; + } + if (*sp) + len = (*sp)->len; + + if ((!len) && *txpending != 1) + return; /* no data */ + + if (test_bit(HFC_CHIP_B410P, &hc->chip) && + (hc->chan[ch].protocol == ISDN_P_B_RAW) && + (hc->chan[ch].slot_rx < 0) && + (hc->chan[ch].slot_tx < 0)) + HFC_outb_nodebug(hc, R_FIFO, 0x20 | (ch << 1)); + else + HFC_outb_nodebug(hc, R_FIFO, ch << 1); + HFC_wait_nodebug(hc); + + if (*txpending == 2) { + /* reset fifo */ + HFC_outb_nodebug(hc, R_INC_RES_FIFO, V_RES_F); + HFC_wait_nodebug(hc); + HFC_outb(hc, A_SUBCH_CFG, 0); + *txpending = 1; + } +next_frame: + if (dch || test_bit(FLG_HDLC, &bch->Flags)) { + f1 = HFC_inb_nodebug(hc, A_F1); + f2 = HFC_inb_nodebug(hc, A_F2); + while (f2 != (temp = HFC_inb_nodebug(hc, A_F2))) { + if (debug & DEBUG_HFCMULTI_FIFO) + printk(KERN_DEBUG + "%s(card %d): reread f2 because %d!=%d\n", + __func__, hc->id + 1, temp, f2); + f2 = temp; /* repeat until F2 is equal */ + } + Fspace = f2 - f1 - 1; + if (Fspace < 0) + Fspace += hc->Flen; + /* + * Old FIFO handling doesn't give us the current Z2 read + * pointer, so we cannot send the next frame before the fifo + * is empty. It makes no difference except for a slightly + * lower performance. + */ + if (test_bit(HFC_CHIP_REVISION0, &hc->chip)) { + if (f1 != f2) + Fspace = 0; + else + Fspace = 1; + } + /* one frame only for ST D-channels, to allow resending */ + if (hc->type != 1 && dch) { + if (f1 != f2) + Fspace = 0; + } + /* F-counter full condition */ + if (Fspace == 0) + return; + } + z1 = HFC_inw_nodebug(hc, A_Z1) - hc->Zmin; + z2 = HFC_inw_nodebug(hc, A_Z2) - hc->Zmin; + while (z2 != (temp = (HFC_inw_nodebug(hc, A_Z2) - hc->Zmin))) { + if (debug & DEBUG_HFCMULTI_FIFO) + printk(KERN_DEBUG "%s(card %d): reread z2 because " + "%d!=%d\n", __func__, hc->id + 1, temp, z2); + z2 = temp; /* repeat unti Z2 is equal */ + } + Zspace = z2 - z1; + if (Zspace <= 0) + Zspace += hc->Zlen; + Zspace -= 4; /* keep not too full, so pointers will not overrun */ + /* fill transparent data only to maxinum transparent load (minus 4) */ + if (bch && test_bit(FLG_TRANSPARENT, &bch->Flags)) + Zspace = Zspace - hc->Zlen + hc->max_trans; + if (Zspace <= 0) /* no space of 4 bytes */ + return; + + /* if no data */ + if (!len) { + if (z1 == z2) { /* empty */ + /* if done with FIFO audio data during PCM connection */ + if (bch && (!test_bit(FLG_HDLC, &bch->Flags)) && + *txpending && slot_tx >= 0) { + if (debug & DEBUG_HFCMULTI_MODE) + printk(KERN_DEBUG + "%s: reconnecting PCM due to no " + "more FIFO data: channel %d " + "slot_tx %d\n", + __func__, ch, slot_tx); + /* connect slot */ + HFC_outb(hc, A_CON_HDLC, 0xc0 | 0x00 | + V_HDLC_TRP | V_IFF); + HFC_outb_nodebug(hc, R_FIFO, ch<<1 | 1); + HFC_wait_nodebug(hc); + HFC_outb(hc, A_CON_HDLC, 0xc0 | 0x00 | + V_HDLC_TRP | V_IFF); + HFC_outb_nodebug(hc, R_FIFO, ch<<1); + HFC_wait_nodebug(hc); + } + *txpending = 0; + } + return; /* no data */ + } + + /* if audio data and connected slot */ + if (bch && (!test_bit(FLG_HDLC, &bch->Flags)) && (!*txpending) + && slot_tx >= 0) { + if (debug & DEBUG_HFCMULTI_MODE) + printk(KERN_DEBUG "%s: disconnecting PCM due to " + "FIFO data: channel %d slot_tx %d\n", + __func__, ch, slot_tx); + /* disconnect slot */ + HFC_outb(hc, A_CON_HDLC, 0x80 | 0x00 | V_HDLC_TRP | V_IFF); + HFC_outb_nodebug(hc, R_FIFO, ch<<1 | 1); + HFC_wait_nodebug(hc); + HFC_outb(hc, A_CON_HDLC, 0x80 | 0x00 | V_HDLC_TRP | V_IFF); + HFC_outb_nodebug(hc, R_FIFO, ch<<1); + HFC_wait_nodebug(hc); + } + *txpending = 1; + + /* show activity */ + hc->activity[hc->chan[ch].port] = 1; + + /* fill fifo to what we have left */ + ii = len; + if (dch || test_bit(FLG_HDLC, &bch->Flags)) + temp = 1; + else + temp = 0; + i = *idxp; + d = (*sp)->data + i; + if (ii - i > Zspace) + ii = Zspace + i; + if (debug & DEBUG_HFCMULTI_FIFO) + printk(KERN_DEBUG "%s(card %d): fifo(%d) has %d bytes space " + "left (z1=%04x, z2=%04x) sending %d of %d bytes %s\n", + __func__, hc->id + 1, ch, Zspace, z1, z2, ii-i, len-i, + temp ? "HDLC":"TRANS"); + + + /* Have to prep the audio data */ + hc->write_fifo(hc, d, ii - i); + *idxp = ii; + + /* if not all data has been written */ + if (ii != len) { + /* NOTE: fifo is started by the calling function */ + return; + } + + /* if all data has been written, terminate frame */ + if (dch || test_bit(FLG_HDLC, &bch->Flags)) { + /* increment f-counter */ + HFC_outb_nodebug(hc, R_INC_RES_FIFO, V_INC_F); + HFC_wait_nodebug(hc); + } + + /* send confirm, since get_net_bframe will not do it with trans */ + if (bch && test_bit(FLG_TRANSPARENT, &bch->Flags)) + confirm_Bsend(bch); + + /* check for next frame */ + dev_kfree_skb(*sp); + if (bch && get_next_bframe(bch)) { /* hdlc is confirmed here */ + len = (*sp)->len; + goto next_frame; + } + if (dch && get_next_dframe(dch)) { + len = (*sp)->len; + goto next_frame; + } + + /* + * now we have no more data, so in case of transparent, + * we set the last byte in fifo to 'silence' in case we will get + * no more data at all. this prevents sending an undefined value. + */ + if (bch && test_bit(FLG_TRANSPARENT, &bch->Flags)) + HFC_outb_nodebug(hc, A_FIFO_DATA0_NOINC, silence); +} + + +/* NOTE: only called if E1 card is in active state */ +static void +hfcmulti_rx(struct hfc_multi *hc, int ch) +{ + int temp; + int Zsize, z1, z2 = 0; /* = 0, to make GCC happy */ + int f1 = 0, f2 = 0; /* = 0, to make GCC happy */ + int again = 0; + struct bchannel *bch; + struct dchannel *dch; + struct sk_buff *skb, **sp = NULL; + int maxlen; + + bch = hc->chan[ch].bch; + dch = hc->chan[ch].dch; + if ((!dch) && (!bch)) + return; + if (dch) { + if (!test_bit(FLG_ACTIVE, &dch->Flags)) + return; + sp = &dch->rx_skb; + maxlen = dch->maxlen; + } else { + if (!test_bit(FLG_ACTIVE, &bch->Flags)) + return; + sp = &bch->rx_skb; + maxlen = bch->maxlen; + } +next_frame: + /* on first AND before getting next valid frame, R_FIFO must be written + to. */ + if (test_bit(HFC_CHIP_B410P, &hc->chip) && + (hc->chan[ch].protocol == ISDN_P_B_RAW) && + (hc->chan[ch].slot_rx < 0) && + (hc->chan[ch].slot_tx < 0)) + HFC_outb_nodebug(hc, R_FIFO, 0x20 | (ch<<1) | 1); + else + HFC_outb_nodebug(hc, R_FIFO, (ch<<1)|1); + HFC_wait_nodebug(hc); + + /* ignore if rx is off BUT change fifo (above) to start pending TX */ + if (hc->chan[ch].rx_off) + return; + + if (dch || test_bit(FLG_HDLC, &bch->Flags)) { + f1 = HFC_inb_nodebug(hc, A_F1); + while (f1 != (temp = HFC_inb_nodebug(hc, A_F1))) { + if (debug & DEBUG_HFCMULTI_FIFO) + printk(KERN_DEBUG + "%s(card %d): reread f1 because %d!=%d\n", + __func__, hc->id + 1, temp, f1); + f1 = temp; /* repeat until F1 is equal */ + } + f2 = HFC_inb_nodebug(hc, A_F2); + } + z1 = HFC_inw_nodebug(hc, A_Z1) - hc->Zmin; + while (z1 != (temp = (HFC_inw_nodebug(hc, A_Z1) - hc->Zmin))) { + if (debug & DEBUG_HFCMULTI_FIFO) + printk(KERN_DEBUG "%s(card %d): reread z2 because " + "%d!=%d\n", __func__, hc->id + 1, temp, z2); + z1 = temp; /* repeat until Z1 is equal */ + } + z2 = HFC_inw_nodebug(hc, A_Z2) - hc->Zmin; + Zsize = z1 - z2; + if ((dch || test_bit(FLG_HDLC, &bch->Flags)) && f1 != f2) + /* complete hdlc frame */ + Zsize++; + if (Zsize < 0) + Zsize += hc->Zlen; + /* if buffer is empty */ + if (Zsize <= 0) + return; + + if (*sp == NULL) { + *sp = mI_alloc_skb(maxlen + 3, GFP_ATOMIC); + if (*sp == NULL) { + printk(KERN_DEBUG "%s: No mem for rx_skb\n", + __func__); + return; + } + } + /* show activity */ + hc->activity[hc->chan[ch].port] = 1; + + /* empty fifo with what we have */ + if (dch || test_bit(FLG_HDLC, &bch->Flags)) { + if (debug & DEBUG_HFCMULTI_FIFO) + printk(KERN_DEBUG "%s(card %d): fifo(%d) reading %d " + "bytes (z1=%04x, z2=%04x) HDLC %s (f1=%d, f2=%d) " + "got=%d (again %d)\n", __func__, hc->id + 1, ch, + Zsize, z1, z2, (f1 == f2) ? "fragment" : "COMPLETE", + f1, f2, Zsize + (*sp)->len, again); + /* HDLC */ + if ((Zsize + (*sp)->len) > (maxlen + 3)) { + if (debug & DEBUG_HFCMULTI_FIFO) + printk(KERN_DEBUG + "%s(card %d): hdlc-frame too large.\n", + __func__, hc->id + 1); + skb_trim(*sp, 0); + HFC_outb_nodebug(hc, R_INC_RES_FIFO, V_RES_F); + HFC_wait_nodebug(hc); + return; + } + + hc->read_fifo(hc, skb_put(*sp, Zsize), Zsize); + + if (f1 != f2) { + /* increment Z2,F2-counter */ + HFC_outb_nodebug(hc, R_INC_RES_FIFO, V_INC_F); + HFC_wait_nodebug(hc); + /* check size */ + if ((*sp)->len < 4) { + if (debug & DEBUG_HFCMULTI_FIFO) + printk(KERN_DEBUG + "%s(card %d): Frame below minimum " + "size\n", __func__, hc->id + 1); + skb_trim(*sp, 0); + goto next_frame; + } + /* there is at least one complete frame, check crc */ + if ((*sp)->data[(*sp)->len - 1]) { + if (debug & DEBUG_HFCMULTI_CRC) + printk(KERN_DEBUG + "%s: CRC-error\n", __func__); + skb_trim(*sp, 0); + goto next_frame; + } + skb_trim(*sp, (*sp)->len - 3); + if ((*sp)->len < MISDN_COPY_SIZE) { + skb = *sp; + *sp = mI_alloc_skb(skb->len, GFP_ATOMIC); + if (*sp) { + memcpy(skb_put(*sp, skb->len), + skb->data, skb->len); + skb_trim(skb, 0); + } else { + printk(KERN_DEBUG "%s: No mem\n", + __func__); + *sp = skb; + skb = NULL; + } + } else { + skb = NULL; + } + if (debug & DEBUG_HFCMULTI_FIFO) { + printk(KERN_DEBUG "%s(card %d):", + __func__, hc->id + 1); + temp = 0; + while (temp < (*sp)->len) + printk(" %02x", (*sp)->data[temp++]); + printk("\n"); + } + if (dch) + recv_Dchannel(dch); + else + recv_Bchannel(bch); + *sp = skb; + again++; + goto next_frame; + } + /* there is an incomplete frame */ + } else { + /* transparent */ + if (Zsize > skb_tailroom(*sp)) + Zsize = skb_tailroom(*sp); + hc->read_fifo(hc, skb_put(*sp, Zsize), Zsize); + if (((*sp)->len) < MISDN_COPY_SIZE) { + skb = *sp; + *sp = mI_alloc_skb(skb->len, GFP_ATOMIC); + if (*sp) { + memcpy(skb_put(*sp, skb->len), + skb->data, skb->len); + skb_trim(skb, 0); + } else { + printk(KERN_DEBUG "%s: No mem\n", __func__); + *sp = skb; + skb = NULL; + } + } else { + skb = NULL; + } + if (debug & DEBUG_HFCMULTI_FIFO) + printk(KERN_DEBUG + "%s(card %d): fifo(%d) reading %d bytes " + "(z1=%04x, z2=%04x) TRANS\n", + __func__, hc->id + 1, ch, Zsize, z1, z2); + /* only bch is transparent */ + recv_Bchannel(bch); + *sp = skb; + } +} + + +/* + * Interrupt handler + */ +static void +signal_state_up(struct dchannel *dch, int info, char *msg) +{ + struct sk_buff *skb; + int id, data = info; + + if (debug & DEBUG_HFCMULTI_STATE) + printk(KERN_DEBUG "%s: %s\n", __func__, msg); + + id = TEI_SAPI | (GROUP_TEI << 8); /* manager address */ + + skb = _alloc_mISDN_skb(MPH_INFORMATION_IND, id, sizeof(data), &data, + GFP_ATOMIC); + if (!skb) + return; + recv_Dchannel_skb(dch, skb); +} + +static inline void +handle_timer_irq(struct hfc_multi *hc) +{ + int ch, temp; + struct dchannel *dch; + u_long flags; + + /* process queued resync jobs */ + if (hc->e1_resync) { + /* lock, so e1_resync gets not changed */ + spin_lock_irqsave(&HFClock, flags); + if (hc->e1_resync & 1) { + if (debug & DEBUG_HFCMULTI_PLXSD) + printk(KERN_DEBUG "Enable SYNC_I\n"); + HFC_outb(hc, R_SYNC_CTRL, V_EXT_CLK_SYNC); + /* disable JATT, if RX_SYNC is set */ + if (test_bit(HFC_CHIP_RX_SYNC, &hc->chip)) + HFC_outb(hc, R_SYNC_OUT, V_SYNC_E1_RX); + } + if (hc->e1_resync & 2) { + if (debug & DEBUG_HFCMULTI_PLXSD) + printk(KERN_DEBUG "Enable jatt PLL\n"); + HFC_outb(hc, R_SYNC_CTRL, V_SYNC_OFFS); + } + if (hc->e1_resync & 4) { + if (debug & DEBUG_HFCMULTI_PLXSD) + printk(KERN_DEBUG + "Enable QUARTZ for HFC-E1\n"); + /* set jatt to quartz */ + HFC_outb(hc, R_SYNC_CTRL, V_EXT_CLK_SYNC + | V_JATT_OFF); + /* switch to JATT, in case it is not already */ + HFC_outb(hc, R_SYNC_OUT, 0); + } + hc->e1_resync = 0; + spin_unlock_irqrestore(&HFClock, flags); + } + + if (hc->type != 1 || hc->e1_state == 1) + for (ch = 0; ch <= 31; ch++) { + if (hc->created[hc->chan[ch].port]) { + hfcmulti_tx(hc, ch); + /* fifo is started when switching to rx-fifo */ + hfcmulti_rx(hc, ch); + if (hc->chan[ch].dch && + hc->chan[ch].nt_timer > -1) { + dch = hc->chan[ch].dch; + if (!(--hc->chan[ch].nt_timer)) { + schedule_event(dch, + FLG_PHCHANGE); + if (debug & + DEBUG_HFCMULTI_STATE) + printk(KERN_DEBUG + "%s: nt_timer at " + "state %x\n", + __func__, + dch->state); + } + } + } + } + if (hc->type == 1 && hc->created[0]) { + dch = hc->chan[hc->dslot].dch; + if (test_bit(HFC_CFG_REPORT_LOS, &hc->chan[hc->dslot].cfg)) { + /* LOS */ + temp = HFC_inb_nodebug(hc, R_SYNC_STA) & V_SIG_LOS; + if (!temp && hc->chan[hc->dslot].los) + signal_state_up(dch, L1_SIGNAL_LOS_ON, + "LOS detected"); + if (temp && !hc->chan[hc->dslot].los) + signal_state_up(dch, L1_SIGNAL_LOS_OFF, + "LOS gone"); + hc->chan[hc->dslot].los = temp; + } + if (test_bit(HFC_CFG_REPORT_AIS, &hc->chan[hc->dslot].cfg)) { + /* AIS */ + temp = HFC_inb_nodebug(hc, R_SYNC_STA) & V_AIS; + if (!temp && hc->chan[hc->dslot].ais) + signal_state_up(dch, L1_SIGNAL_AIS_ON, + "AIS detected"); + if (temp && !hc->chan[hc->dslot].ais) + signal_state_up(dch, L1_SIGNAL_AIS_OFF, + "AIS gone"); + hc->chan[hc->dslot].ais = temp; + } + if (test_bit(HFC_CFG_REPORT_SLIP, &hc->chan[hc->dslot].cfg)) { + /* SLIP */ + temp = HFC_inb_nodebug(hc, R_SLIP) & V_FOSLIP_RX; + if (!temp && hc->chan[hc->dslot].slip_rx) + signal_state_up(dch, L1_SIGNAL_SLIP_RX, + " bit SLIP detected RX"); + hc->chan[hc->dslot].slip_rx = temp; + temp = HFC_inb_nodebug(hc, R_SLIP) & V_FOSLIP_TX; + if (!temp && hc->chan[hc->dslot].slip_tx) + signal_state_up(dch, L1_SIGNAL_SLIP_TX, + " bit SLIP detected TX"); + hc->chan[hc->dslot].slip_tx = temp; + } + if (test_bit(HFC_CFG_REPORT_RDI, &hc->chan[hc->dslot].cfg)) { + /* RDI */ + temp = HFC_inb_nodebug(hc, R_RX_SL0_0) & V_A; + if (!temp && hc->chan[hc->dslot].rdi) + signal_state_up(dch, L1_SIGNAL_RDI_ON, + "RDI detected"); + if (temp && !hc->chan[hc->dslot].rdi) + signal_state_up(dch, L1_SIGNAL_RDI_OFF, + "RDI gone"); + hc->chan[hc->dslot].rdi = temp; + } + temp = HFC_inb_nodebug(hc, R_JATT_DIR); + switch (hc->chan[hc->dslot].sync) { + case 0: + if ((temp & 0x60) == 0x60) { + if (debug & DEBUG_HFCMULTI_SYNC) + printk(KERN_DEBUG + "%s: (id=%d) E1 now " + "in clock sync\n", + __func__, hc->id); + HFC_outb(hc, R_RX_OFF, + hc->chan[hc->dslot].jitter | V_RX_INIT); + HFC_outb(hc, R_TX_OFF, + hc->chan[hc->dslot].jitter | V_RX_INIT); + hc->chan[hc->dslot].sync = 1; + goto check_framesync; + } + break; + case 1: + if ((temp & 0x60) != 0x60) { + if (debug & DEBUG_HFCMULTI_SYNC) + printk(KERN_DEBUG + "%s: (id=%d) E1 " + "lost clock sync\n", + __func__, hc->id); + hc->chan[hc->dslot].sync = 0; + break; + } +check_framesync: + temp = HFC_inb_nodebug(hc, R_SYNC_STA); + if (temp == 0x27) { + if (debug & DEBUG_HFCMULTI_SYNC) + printk(KERN_DEBUG + "%s: (id=%d) E1 " + "now in frame sync\n", + __func__, hc->id); + hc->chan[hc->dslot].sync = 2; + } + break; + case 2: + if ((temp & 0x60) != 0x60) { + if (debug & DEBUG_HFCMULTI_SYNC) + printk(KERN_DEBUG + "%s: (id=%d) E1 lost " + "clock & frame sync\n", + __func__, hc->id); + hc->chan[hc->dslot].sync = 0; + break; + } + temp = HFC_inb_nodebug(hc, R_SYNC_STA); + if (temp != 0x27) { + if (debug & DEBUG_HFCMULTI_SYNC) + printk(KERN_DEBUG + "%s: (id=%d) E1 " + "lost frame sync\n", + __func__, hc->id); + hc->chan[hc->dslot].sync = 1; + } + break; + } + } + + if (test_bit(HFC_CHIP_WATCHDOG, &hc->chip)) + hfcmulti_watchdog(hc); + + if (hc->leds) + hfcmulti_leds(hc); +} + +static void +ph_state_irq(struct hfc_multi *hc, u_char r_irq_statech) +{ + struct dchannel *dch; + int ch; + int active; + u_char st_status, temp; + + /* state machine */ + for (ch = 0; ch <= 31; ch++) { + if (hc->chan[ch].dch) { + dch = hc->chan[ch].dch; + if (r_irq_statech & 1) { + HFC_outb_nodebug(hc, R_ST_SEL, + hc->chan[ch].port); + /* undocumented: delay after R_ST_SEL */ + udelay(1); + /* undocumented: status changes during read */ + st_status = HFC_inb_nodebug(hc, A_ST_RD_STATE); + while (st_status != (temp = + HFC_inb_nodebug(hc, A_ST_RD_STATE))) { + if (debug & DEBUG_HFCMULTI_STATE) + printk(KERN_DEBUG "%s: reread " + "STATE because %d!=%d\n", + __func__, temp, + st_status); + st_status = temp; /* repeat */ + } + + /* Speech Design TE-sync indication */ + if (test_bit(HFC_CHIP_PLXSD, &hc->chip) && + dch->dev.D.protocol == ISDN_P_TE_S0) { + if (st_status & V_FR_SYNC_ST) + hc->syncronized |= + (1 << hc->chan[ch].port); + else + hc->syncronized &= + ~(1 << hc->chan[ch].port); + } + dch->state = st_status & 0x0f; + if (dch->dev.D.protocol == ISDN_P_NT_S0) + active = 3; + else + active = 7; + if (dch->state == active) { + HFC_outb_nodebug(hc, R_FIFO, + (ch << 1) | 1); + HFC_wait_nodebug(hc); + HFC_outb_nodebug(hc, + R_INC_RES_FIFO, V_RES_F); + HFC_wait_nodebug(hc); + dch->tx_idx = 0; + } + schedule_event(dch, FLG_PHCHANGE); + if (debug & DEBUG_HFCMULTI_STATE) + printk(KERN_DEBUG + "%s: S/T newstate %x port %d\n", + __func__, dch->state, + hc->chan[ch].port); + } + r_irq_statech >>= 1; + } + } + if (test_bit(HFC_CHIP_PLXSD, &hc->chip)) + plxsd_checksync(hc, 0); +} + +static void +fifo_irq(struct hfc_multi *hc, int block) +{ + int ch, j; + struct dchannel *dch; + struct bchannel *bch; + u_char r_irq_fifo_bl; + + r_irq_fifo_bl = HFC_inb_nodebug(hc, R_IRQ_FIFO_BL0 + block); + j = 0; + while (j < 8) { + ch = (block << 2) + (j >> 1); + dch = hc->chan[ch].dch; + bch = hc->chan[ch].bch; + if (((!dch) && (!bch)) || (!hc->created[hc->chan[ch].port])) { + j += 2; + continue; + } + if (dch && (r_irq_fifo_bl & (1 << j)) && + test_bit(FLG_ACTIVE, &dch->Flags)) { + hfcmulti_tx(hc, ch); + /* start fifo */ + HFC_outb_nodebug(hc, R_FIFO, 0); + HFC_wait_nodebug(hc); + } + if (bch && (r_irq_fifo_bl & (1 << j)) && + test_bit(FLG_ACTIVE, &bch->Flags)) { + hfcmulti_tx(hc, ch); + /* start fifo */ + HFC_outb_nodebug(hc, R_FIFO, 0); + HFC_wait_nodebug(hc); + } + j++; + if (dch && (r_irq_fifo_bl & (1 << j)) && + test_bit(FLG_ACTIVE, &dch->Flags)) { + hfcmulti_rx(hc, ch); + } + if (bch && (r_irq_fifo_bl & (1 << j)) && + test_bit(FLG_ACTIVE, &bch->Flags)) { + hfcmulti_rx(hc, ch); + } + j++; + } +} + +#ifdef IRQ_DEBUG +int irqsem; +#endif +static irqreturn_t +hfcmulti_interrupt(int intno, void *dev_id) +{ +#ifdef IRQCOUNT_DEBUG + static int iq1 = 0, iq2 = 0, iq3 = 0, iq4 = 0, + iq5 = 0, iq6 = 0, iqcnt = 0; +#endif + static int count; + struct hfc_multi *hc = dev_id; + struct dchannel *dch; + u_char r_irq_statech, status, r_irq_misc, r_irq_oview; + int i; + u_short *plx_acc, wval; + u_char e1_syncsta, temp; + u_long flags; + + if (!hc) { + printk(KERN_ERR "HFC-multi: Spurious interrupt!\n"); + return IRQ_NONE; + } + + spin_lock(&hc->lock); + +#ifdef IRQ_DEBUG + if (irqsem) + printk(KERN_ERR "irq for card %d during irq from " + "card %d, this is no bug.\n", hc->id + 1, irqsem); + irqsem = hc->id + 1; +#endif + + if (test_bit(HFC_CHIP_PLXSD, &hc->chip)) { + spin_lock_irqsave(&plx_lock, flags); + plx_acc = (u_short *)(hc->plx_membase + PLX_INTCSR); + wval = readw(plx_acc); + spin_unlock_irqrestore(&plx_lock, flags); + if (!(wval & PLX_INTCSR_LINTI1_STATUS)) + goto irq_notforus; + } + + status = HFC_inb_nodebug(hc, R_STATUS); + r_irq_statech = HFC_inb_nodebug(hc, R_IRQ_STATECH); +#ifdef IRQCOUNT_DEBUG + if (r_irq_statech) + iq1++; + if (status & V_DTMF_STA) + iq2++; + if (status & V_LOST_STA) + iq3++; + if (status & V_EXT_IRQSTA) + iq4++; + if (status & V_MISC_IRQSTA) + iq5++; + if (status & V_FR_IRQSTA) + iq6++; + if (iqcnt++ > 5000) { + printk(KERN_ERR "iq1:%x iq2:%x iq3:%x iq4:%x iq5:%x iq6:%x\n", + iq1, iq2, iq3, iq4, iq5, iq6); + iqcnt = 0; + } +#endif + if (!r_irq_statech && + !(status & (V_DTMF_STA | V_LOST_STA | V_EXT_IRQSTA | + V_MISC_IRQSTA | V_FR_IRQSTA))) { + /* irq is not for us */ + goto irq_notforus; + } + hc->irqcnt++; + if (r_irq_statech) { + if (hc->type != 1) + ph_state_irq(hc, r_irq_statech); + } + if (status & V_EXT_IRQSTA) + ; /* external IRQ */ + if (status & V_LOST_STA) { + /* LOST IRQ */ + HFC_outb(hc, R_INC_RES_FIFO, V_RES_LOST); /* clear irq! */ + } + if (status & V_MISC_IRQSTA) { + /* misc IRQ */ + r_irq_misc = HFC_inb_nodebug(hc, R_IRQ_MISC); + if (r_irq_misc & V_STA_IRQ) { + if (hc->type == 1) { + /* state machine */ + dch = hc->chan[hc->dslot].dch; + e1_syncsta = HFC_inb_nodebug(hc, R_SYNC_STA); + if (test_bit(HFC_CHIP_PLXSD, &hc->chip) + && hc->e1_getclock) { + if (e1_syncsta & V_FR_SYNC_E1) + hc->syncronized = 1; + else + hc->syncronized = 0; + } + /* undocumented: status changes during read */ + dch->state = HFC_inb_nodebug(hc, R_E1_RD_STA); + while (dch->state != (temp = + HFC_inb_nodebug(hc, R_E1_RD_STA))) { + if (debug & DEBUG_HFCMULTI_STATE) + printk(KERN_DEBUG "%s: reread " + "STATE because %d!=%d\n", + __func__, temp, + dch->state); + dch->state = temp; /* repeat */ + } + dch->state = HFC_inb_nodebug(hc, R_E1_RD_STA) + & 0x7; + schedule_event(dch, FLG_PHCHANGE); + if (debug & DEBUG_HFCMULTI_STATE) + printk(KERN_DEBUG + "%s: E1 (id=%d) newstate %x\n", + __func__, hc->id, dch->state); + if (test_bit(HFC_CHIP_PLXSD, &hc->chip)) + plxsd_checksync(hc, 0); + } + } + if (r_irq_misc & V_TI_IRQ) + handle_timer_irq(hc); + + if (r_irq_misc & V_DTMF_IRQ) { + /* -> DTMF IRQ */ + hfcmulti_dtmf(hc); + } + /* TODO: REPLACE !!!! 125 us Interrupts are not acceptable */ + if (r_irq_misc & V_IRQ_PROC) { + /* IRQ every 125us */ + count++; + /* generate 1kHz signal */ + if (count == 8) { + if (hfc_interrupt) + hfc_interrupt(); + count = 0; + } + } + + } + if (status & V_FR_IRQSTA) { + /* FIFO IRQ */ + r_irq_oview = HFC_inb_nodebug(hc, R_IRQ_OVIEW); + for (i = 0; i < 8; i++) { + if (r_irq_oview & (1 << i)) + fifo_irq(hc, i); + } + } + +#ifdef IRQ_DEBUG + irqsem = 0; +#endif + spin_unlock(&hc->lock); + return IRQ_HANDLED; + +irq_notforus: +#ifdef IRQ_DEBUG + irqsem = 0; +#endif + spin_unlock(&hc->lock); + return IRQ_NONE; +} + + +/* + * timer callback for D-chan busy resolution. Currently no function + */ + +static void +hfcmulti_dbusy_timer(struct hfc_multi *hc) +{ +} + + +/* + * activate/deactivate hardware for selected channels and mode + * + * configure B-channel with the given protocol + * ch eqals to the HFC-channel (0-31) + * ch is the number of channel (0-4,4-7,8-11,12-15,16-19,20-23,24-27,28-31 + * for S/T, 1-31 for E1) + * the hdlc interrupts will be set/unset + */ +static int +mode_hfcmulti(struct hfc_multi *hc, int ch, int protocol, int slot_tx, + int bank_tx, int slot_rx, int bank_rx) +{ + int flow_tx = 0, flow_rx = 0, routing = 0; + int oslot_tx, oslot_rx; + int conf; + + if (ch < 0 || ch > 31) + return EINVAL; + oslot_tx = hc->chan[ch].slot_tx; + oslot_rx = hc->chan[ch].slot_rx; + conf = hc->chan[ch].conf; + + if (debug & DEBUG_HFCMULTI_MODE) + printk(KERN_DEBUG + "%s: card %d channel %d protocol %x slot old=%d new=%d " + "bank new=%d (TX) slot old=%d new=%d bank new=%d (RX)\n", + __func__, hc->id, ch, protocol, oslot_tx, slot_tx, + bank_tx, oslot_rx, slot_rx, bank_rx); + + if (oslot_tx >= 0 && slot_tx != oslot_tx) { + /* remove from slot */ + if (debug & DEBUG_HFCMULTI_MODE) + printk(KERN_DEBUG "%s: remove from slot %d (TX)\n", + __func__, oslot_tx); + if (hc->slot_owner[oslot_tx<<1] == ch) { + HFC_outb(hc, R_SLOT, oslot_tx << 1); + HFC_outb(hc, A_SL_CFG, 0); + HFC_outb(hc, A_CONF, 0); + hc->slot_owner[oslot_tx<<1] = -1; + } else { + if (debug & DEBUG_HFCMULTI_MODE) + printk(KERN_DEBUG + "%s: we are not owner of this tx slot " + "anymore, channel %d is.\n", + __func__, hc->slot_owner[oslot_tx<<1]); + } + } + + if (oslot_rx >= 0 && slot_rx != oslot_rx) { + /* remove from slot */ + if (debug & DEBUG_HFCMULTI_MODE) + printk(KERN_DEBUG + "%s: remove from slot %d (RX)\n", + __func__, oslot_rx); + if (hc->slot_owner[(oslot_rx << 1) | 1] == ch) { + HFC_outb(hc, R_SLOT, (oslot_rx << 1) | V_SL_DIR); + HFC_outb(hc, A_SL_CFG, 0); + hc->slot_owner[(oslot_rx << 1) | 1] = -1; + } else { + if (debug & DEBUG_HFCMULTI_MODE) + printk(KERN_DEBUG + "%s: we are not owner of this rx slot " + "anymore, channel %d is.\n", + __func__, + hc->slot_owner[(oslot_rx << 1) | 1]); + } + } + + if (slot_tx < 0) { + flow_tx = 0x80; /* FIFO->ST */ + /* disable pcm slot */ + hc->chan[ch].slot_tx = -1; + hc->chan[ch].bank_tx = 0; + } else { + /* set pcm slot */ + if (hc->chan[ch].txpending) + flow_tx = 0x80; /* FIFO->ST */ + else + flow_tx = 0xc0; /* PCM->ST */ + /* put on slot */ + routing = bank_tx ? 0xc0 : 0x80; + if (conf >= 0 || bank_tx > 1) + routing = 0x40; /* loop */ + if (debug & DEBUG_HFCMULTI_MODE) + printk(KERN_DEBUG "%s: put channel %d to slot %d bank" + " %d flow %02x routing %02x conf %d (TX)\n", + __func__, ch, slot_tx, bank_tx, + flow_tx, routing, conf); + HFC_outb(hc, R_SLOT, slot_tx << 1); + HFC_outb(hc, A_SL_CFG, (ch<<1) | routing); + HFC_outb(hc, A_CONF, (conf < 0) ? 0 : (conf | V_CONF_SL)); + hc->slot_owner[slot_tx << 1] = ch; + hc->chan[ch].slot_tx = slot_tx; + hc->chan[ch].bank_tx = bank_tx; + } + if (slot_rx < 0) { + /* disable pcm slot */ + flow_rx = 0x80; /* ST->FIFO */ + hc->chan[ch].slot_rx = -1; + hc->chan[ch].bank_rx = 0; + } else { + /* set pcm slot */ + if (hc->chan[ch].txpending) + flow_rx = 0x80; /* ST->FIFO */ + else + flow_rx = 0xc0; /* ST->(FIFO,PCM) */ + /* put on slot */ + routing = bank_rx?0x80:0xc0; /* reversed */ + if (conf >= 0 || bank_rx > 1) + routing = 0x40; /* loop */ + if (debug & DEBUG_HFCMULTI_MODE) + printk(KERN_DEBUG "%s: put channel %d to slot %d bank" + " %d flow %02x routing %02x conf %d (RX)\n", + __func__, ch, slot_rx, bank_rx, + flow_rx, routing, conf); + HFC_outb(hc, R_SLOT, (slot_rx<<1) | V_SL_DIR); + HFC_outb(hc, A_SL_CFG, (ch<<1) | V_CH_DIR | routing); + hc->slot_owner[(slot_rx<<1)|1] = ch; + hc->chan[ch].slot_rx = slot_rx; + hc->chan[ch].bank_rx = bank_rx; + } + + switch (protocol) { + case (ISDN_P_NONE): + /* disable TX fifo */ + HFC_outb(hc, R_FIFO, ch << 1); + HFC_wait(hc); + HFC_outb(hc, A_CON_HDLC, flow_tx | 0x00 | V_IFF); + HFC_outb(hc, A_SUBCH_CFG, 0); + HFC_outb(hc, A_IRQ_MSK, 0); + HFC_outb(hc, R_INC_RES_FIFO, V_RES_F); + HFC_wait(hc); + /* disable RX fifo */ + HFC_outb(hc, R_FIFO, (ch<<1)|1); + HFC_wait(hc); + HFC_outb(hc, A_CON_HDLC, flow_rx | 0x00); + HFC_outb(hc, A_SUBCH_CFG, 0); + HFC_outb(hc, A_IRQ_MSK, 0); + HFC_outb(hc, R_INC_RES_FIFO, V_RES_F); + HFC_wait(hc); + if (hc->chan[ch].bch && hc->type != 1) { + hc->hw.a_st_ctrl0[hc->chan[ch].port] &= + ((ch & 0x3) == 0)? ~V_B1_EN: ~V_B2_EN; + HFC_outb(hc, R_ST_SEL, hc->chan[ch].port); + /* undocumented: delay after R_ST_SEL */ + udelay(1); + HFC_outb(hc, A_ST_CTRL0, + hc->hw.a_st_ctrl0[hc->chan[ch].port]); + } + if (hc->chan[ch].bch) { + test_and_clear_bit(FLG_HDLC, &hc->chan[ch].bch->Flags); + test_and_clear_bit(FLG_TRANSPARENT, + &hc->chan[ch].bch->Flags); + } + break; + case (ISDN_P_B_RAW): /* B-channel */ + + if (test_bit(HFC_CHIP_B410P, &hc->chip) && + (hc->chan[ch].slot_rx < 0) && + (hc->chan[ch].slot_tx < 0)) { + + printk(KERN_DEBUG + "Setting B-channel %d to echo cancelable " + "state on PCM slot %d\n", ch, + ((ch / 4) * 8) + ((ch % 4) * 4) + 1); + printk(KERN_DEBUG + "Enabling pass through for channel\n"); + vpm_out(hc, ch, ((ch / 4) * 8) + + ((ch % 4) * 4) + 1, 0x01); + /* rx path */ + /* S/T -> PCM */ + HFC_outb(hc, R_FIFO, (ch << 1)); + HFC_wait(hc); + HFC_outb(hc, A_CON_HDLC, 0xc0 | V_HDLC_TRP | V_IFF); + HFC_outb(hc, R_SLOT, (((ch / 4) * 8) + + ((ch % 4) * 4) + 1) << 1); + HFC_outb(hc, A_SL_CFG, 0x80 | (ch << 1)); + + /* PCM -> FIFO */ + HFC_outb(hc, R_FIFO, 0x20 | (ch << 1) | 1); + HFC_wait(hc); + HFC_outb(hc, A_CON_HDLC, 0x20 | V_HDLC_TRP | V_IFF); + HFC_outb(hc, A_SUBCH_CFG, 0); + HFC_outb(hc, A_IRQ_MSK, 0); + HFC_outb(hc, R_INC_RES_FIFO, V_RES_F); + HFC_wait(hc); + HFC_outb(hc, R_SLOT, ((((ch / 4) * 8) + + ((ch % 4) * 4) + 1) << 1) | 1); + HFC_outb(hc, A_SL_CFG, 0x80 | 0x20 | (ch << 1) | 1); + + /* tx path */ + /* PCM -> S/T */ + HFC_outb(hc, R_FIFO, (ch << 1) | 1); + HFC_wait(hc); + HFC_outb(hc, A_CON_HDLC, 0xc0 | V_HDLC_TRP | V_IFF); + HFC_outb(hc, R_SLOT, ((((ch / 4) * 8) + + ((ch % 4) * 4)) << 1) | 1); + HFC_outb(hc, A_SL_CFG, 0x80 | 0x40 | (ch << 1) | 1); + + /* FIFO -> PCM */ + HFC_outb(hc, R_FIFO, 0x20 | (ch << 1)); + HFC_wait(hc); + HFC_outb(hc, A_CON_HDLC, 0x20 | V_HDLC_TRP | V_IFF); + HFC_outb(hc, A_SUBCH_CFG, 0); + HFC_outb(hc, A_IRQ_MSK, 0); + HFC_outb(hc, R_INC_RES_FIFO, V_RES_F); + HFC_wait(hc); + /* tx silence */ + HFC_outb_nodebug(hc, A_FIFO_DATA0_NOINC, silence); + HFC_outb(hc, R_SLOT, (((ch / 4) * 8) + + ((ch % 4) * 4)) << 1); + HFC_outb(hc, A_SL_CFG, 0x80 | 0x20 | (ch << 1)); + } else { + /* enable TX fifo */ + HFC_outb(hc, R_FIFO, ch << 1); + HFC_wait(hc); + HFC_outb(hc, A_CON_HDLC, flow_tx | 0x00 | + V_HDLC_TRP | V_IFF); + HFC_outb(hc, A_SUBCH_CFG, 0); + HFC_outb(hc, A_IRQ_MSK, 0); + HFC_outb(hc, R_INC_RES_FIFO, V_RES_F); + HFC_wait(hc); + /* tx silence */ + HFC_outb_nodebug(hc, A_FIFO_DATA0_NOINC, silence); + /* enable RX fifo */ + HFC_outb(hc, R_FIFO, (ch<<1)|1); + HFC_wait(hc); + HFC_outb(hc, A_CON_HDLC, flow_rx | 0x00 | V_HDLC_TRP); + HFC_outb(hc, A_SUBCH_CFG, 0); + HFC_outb(hc, A_IRQ_MSK, 0); + HFC_outb(hc, R_INC_RES_FIFO, V_RES_F); + HFC_wait(hc); + } + if (hc->type != 1) { + hc->hw.a_st_ctrl0[hc->chan[ch].port] |= + ((ch & 0x3) == 0) ? V_B1_EN : V_B2_EN; + HFC_outb(hc, R_ST_SEL, hc->chan[ch].port); + /* undocumented: delay after R_ST_SEL */ + udelay(1); + HFC_outb(hc, A_ST_CTRL0, + hc->hw.a_st_ctrl0[hc->chan[ch].port]); + } + if (hc->chan[ch].bch) + test_and_set_bit(FLG_TRANSPARENT, + &hc->chan[ch].bch->Flags); + break; + case (ISDN_P_B_HDLC): /* B-channel */ + case (ISDN_P_TE_S0): /* D-channel */ + case (ISDN_P_NT_S0): + case (ISDN_P_TE_E1): + case (ISDN_P_NT_E1): + /* enable TX fifo */ + HFC_outb(hc, R_FIFO, ch<<1); + HFC_wait(hc); + if (hc->type == 1 || hc->chan[ch].bch) { + /* E1 or B-channel */ + HFC_outb(hc, A_CON_HDLC, flow_tx | 0x04); + HFC_outb(hc, A_SUBCH_CFG, 0); + } else { + /* D-Channel without HDLC fill flags */ + HFC_outb(hc, A_CON_HDLC, flow_tx | 0x04 | V_IFF); + HFC_outb(hc, A_SUBCH_CFG, 2); + } + HFC_outb(hc, A_IRQ_MSK, V_IRQ); + HFC_outb(hc, R_INC_RES_FIFO, V_RES_F); + HFC_wait(hc); + /* enable RX fifo */ + HFC_outb(hc, R_FIFO, (ch<<1)|1); + HFC_wait(hc); + HFC_outb(hc, A_CON_HDLC, flow_rx | 0x04); + if (hc->type == 1 || hc->chan[ch].bch) + HFC_outb(hc, A_SUBCH_CFG, 0); /* full 8 bits */ + else + HFC_outb(hc, A_SUBCH_CFG, 2); /* 2 bits dchannel */ + HFC_outb(hc, A_IRQ_MSK, V_IRQ); + HFC_outb(hc, R_INC_RES_FIFO, V_RES_F); + HFC_wait(hc); + if (hc->chan[ch].bch) { + test_and_set_bit(FLG_HDLC, &hc->chan[ch].bch->Flags); + if (hc->type != 1) { + hc->hw.a_st_ctrl0[hc->chan[ch].port] |= + ((ch&0x3) == 0) ? V_B1_EN : V_B2_EN; + HFC_outb(hc, R_ST_SEL, hc->chan[ch].port); + /* undocumented: delay after R_ST_SEL */ + udelay(1); + HFC_outb(hc, A_ST_CTRL0, + hc->hw.a_st_ctrl0[hc->chan[ch].port]); + } + } + break; + default: + printk(KERN_DEBUG "%s: protocol not known %x\n", + __func__, protocol); + hc->chan[ch].protocol = ISDN_P_NONE; + return -ENOPROTOOPT; + } + hc->chan[ch].protocol = protocol; + return 0; +} + + +/* + * connect/disconnect PCM + */ + +static void +hfcmulti_pcm(struct hfc_multi *hc, int ch, int slot_tx, int bank_tx, + int slot_rx, int bank_rx) +{ + if (slot_rx < 0 || slot_rx < 0 || bank_tx < 0 || bank_rx < 0) { + /* disable PCM */ + mode_hfcmulti(hc, ch, hc->chan[ch].protocol, -1, 0, -1, 0); + return; + } + + /* enable pcm */ + mode_hfcmulti(hc, ch, hc->chan[ch].protocol, slot_tx, bank_tx, + slot_rx, bank_rx); +} + +/* + * set/disable conference + */ + +static void +hfcmulti_conf(struct hfc_multi *hc, int ch, int num) +{ + if (num >= 0 && num <= 7) + hc->chan[ch].conf = num; + else + hc->chan[ch].conf = -1; + mode_hfcmulti(hc, ch, hc->chan[ch].protocol, hc->chan[ch].slot_tx, + hc->chan[ch].bank_tx, hc->chan[ch].slot_rx, + hc->chan[ch].bank_rx); +} + + +/* + * set/disable sample loop + */ + +/* NOTE: this function is experimental and therefore disabled */ + +/* + * Layer 1 callback function + */ +static int +hfcm_l1callback(struct dchannel *dch, u_int cmd) +{ + struct hfc_multi *hc = dch->hw; + u_long flags; + + switch (cmd) { + case INFO3_P8: + case INFO3_P10: + break; + case HW_RESET_REQ: + /* start activation */ + spin_lock_irqsave(&hc->lock, flags); + if (hc->type == 1) { + if (debug & DEBUG_HFCMULTI_MSG) + printk(KERN_DEBUG + "%s: HW_RESET_REQ no BRI\n", + __func__); + } else { + HFC_outb(hc, R_ST_SEL, hc->chan[dch->slot].port); + /* undocumented: delay after R_ST_SEL */ + udelay(1); + HFC_outb(hc, A_ST_WR_STATE, V_ST_LD_STA | 3); /* F3 */ + udelay(6); /* wait at least 5,21us */ + HFC_outb(hc, A_ST_WR_STATE, 3); + HFC_outb(hc, A_ST_WR_STATE, 3 | (V_ST_ACT*3)); + /* activate */ + } + spin_unlock_irqrestore(&hc->lock, flags); + l1_event(dch->l1, HW_POWERUP_IND); + break; + case HW_DEACT_REQ: + /* start deactivation */ + spin_lock_irqsave(&hc->lock, flags); + if (hc->type == 1) { + if (debug & DEBUG_HFCMULTI_MSG) + printk(KERN_DEBUG + "%s: HW_DEACT_REQ no BRI\n", + __func__); + } else { + HFC_outb(hc, R_ST_SEL, hc->chan[dch->slot].port); + /* undocumented: delay after R_ST_SEL */ + udelay(1); + HFC_outb(hc, A_ST_WR_STATE, V_ST_ACT*2); + /* deactivate */ + if (test_bit(HFC_CHIP_PLXSD, &hc->chip)) { + hc->syncronized &= + ~(1 << hc->chan[dch->slot].port); + plxsd_checksync(hc, 0); + } + } + skb_queue_purge(&dch->squeue); + if (dch->tx_skb) { + dev_kfree_skb(dch->tx_skb); + dch->tx_skb = NULL; + } + dch->tx_idx = 0; + if (dch->rx_skb) { + dev_kfree_skb(dch->rx_skb); + dch->rx_skb = NULL; + } + test_and_clear_bit(FLG_TX_BUSY, &dch->Flags); + if (test_and_clear_bit(FLG_BUSY_TIMER, &dch->Flags)) + del_timer(&dch->timer); + spin_unlock_irqrestore(&hc->lock, flags); + break; + case HW_POWERUP_REQ: + spin_lock_irqsave(&hc->lock, flags); + if (hc->type == 1) { + if (debug & DEBUG_HFCMULTI_MSG) + printk(KERN_DEBUG + "%s: HW_POWERUP_REQ no BRI\n", + __func__); + } else { + HFC_outb(hc, R_ST_SEL, hc->chan[dch->slot].port); + /* undocumented: delay after R_ST_SEL */ + udelay(1); + HFC_outb(hc, A_ST_WR_STATE, 3 | 0x10); /* activate */ + udelay(6); /* wait at least 5,21us */ + HFC_outb(hc, A_ST_WR_STATE, 3); /* activate */ + } + spin_unlock_irqrestore(&hc->lock, flags); + break; + case PH_ACTIVATE_IND: + test_and_set_bit(FLG_ACTIVE, &dch->Flags); + _queue_data(&dch->dev.D, cmd, MISDN_ID_ANY, 0, NULL, + GFP_ATOMIC); + break; + case PH_DEACTIVATE_IND: + test_and_clear_bit(FLG_ACTIVE, &dch->Flags); + _queue_data(&dch->dev.D, cmd, MISDN_ID_ANY, 0, NULL, + GFP_ATOMIC); + break; + default: + if (dch->debug & DEBUG_HW) + printk(KERN_DEBUG "%s: unknown command %x\n", + __func__, cmd); + return -1; + } + return 0; +} + +/* + * Layer2 -> Layer 1 Transfer + */ + +static int +handle_dmsg(struct mISDNchannel *ch, struct sk_buff *skb) +{ + struct mISDNdevice *dev = container_of(ch, struct mISDNdevice, D); + struct dchannel *dch = container_of(dev, struct dchannel, dev); + struct hfc_multi *hc = dch->hw; + struct mISDNhead *hh = mISDN_HEAD_P(skb); + int ret = -EINVAL; + unsigned int id; + u_long flags; + + switch (hh->prim) { + case PH_DATA_REQ: + if (skb->len < 1) + break; + spin_lock_irqsave(&hc->lock, flags); + ret = dchannel_senddata(dch, skb); + if (ret > 0) { /* direct TX */ + id = hh->id; /* skb can be freed */ + hfcmulti_tx(hc, dch->slot); + ret = 0; + /* start fifo */ + HFC_outb(hc, R_FIFO, 0); + HFC_wait(hc); + spin_unlock_irqrestore(&hc->lock, flags); + queue_ch_frame(ch, PH_DATA_CNF, id, NULL); + } else + spin_unlock_irqrestore(&hc->lock, flags); + return ret; + case PH_ACTIVATE_REQ: + if (dch->dev.D.protocol != ISDN_P_TE_S0) { + spin_lock_irqsave(&hc->lock, flags); + ret = 0; + if (debug & DEBUG_HFCMULTI_MSG) + printk(KERN_DEBUG + "%s: PH_ACTIVATE port %d (0..%d)\n", + __func__, hc->chan[dch->slot].port, + hc->ports-1); + /* start activation */ + if (hc->type == 1) { + ph_state_change(dch); + if (debug & DEBUG_HFCMULTI_STATE) + printk(KERN_DEBUG + "%s: E1 report state %x \n", + __func__, dch->state); + } else { + HFC_outb(hc, R_ST_SEL, + hc->chan[dch->slot].port); + /* undocumented: delay after R_ST_SEL */ + udelay(1); + HFC_outb(hc, A_ST_WR_STATE, V_ST_LD_STA | 1); + /* G1 */ + udelay(6); /* wait at least 5,21us */ + HFC_outb(hc, A_ST_WR_STATE, 1); + HFC_outb(hc, A_ST_WR_STATE, 1 | + (V_ST_ACT*3)); /* activate */ + dch->state = 1; + } + spin_unlock_irqrestore(&hc->lock, flags); + } else + ret = l1_event(dch->l1, hh->prim); + break; + case PH_DEACTIVATE_REQ: + test_and_clear_bit(FLG_L2_ACTIVATED, &dch->Flags); + if (dch->dev.D.protocol != ISDN_P_TE_S0) { + spin_lock_irqsave(&hc->lock, flags); + if (debug & DEBUG_HFCMULTI_MSG) + printk(KERN_DEBUG + "%s: PH_DEACTIVATE port %d (0..%d)\n", + __func__, hc->chan[dch->slot].port, + hc->ports-1); + /* start deactivation */ + if (hc->type == 1) { + if (debug & DEBUG_HFCMULTI_MSG) + printk(KERN_DEBUG + "%s: PH_DEACTIVATE no BRI\n", + __func__); + } else { + HFC_outb(hc, R_ST_SEL, + hc->chan[dch->slot].port); + /* undocumented: delay after R_ST_SEL */ + udelay(1); + HFC_outb(hc, A_ST_WR_STATE, V_ST_ACT * 2); + /* deactivate */ + dch->state = 1; + } + skb_queue_purge(&dch->squeue); + if (dch->tx_skb) { + dev_kfree_skb(dch->tx_skb); + dch->tx_skb = NULL; + } + dch->tx_idx = 0; + if (dch->rx_skb) { + dev_kfree_skb(dch->rx_skb); + dch->rx_skb = NULL; + } + test_and_clear_bit(FLG_TX_BUSY, &dch->Flags); + if (test_and_clear_bit(FLG_BUSY_TIMER, &dch->Flags)) + del_timer(&dch->timer); +#ifdef FIXME + if (test_and_clear_bit(FLG_L1_BUSY, &dch->Flags)) + dchannel_sched_event(&hc->dch, D_CLEARBUSY); +#endif + ret = 0; + spin_unlock_irqrestore(&hc->lock, flags); + } else + ret = l1_event(dch->l1, hh->prim); + break; + } + if (!ret) + dev_kfree_skb(skb); + return ret; +} + +static void +deactivate_bchannel(struct bchannel *bch) +{ + struct hfc_multi *hc = bch->hw; + u_long flags; + + spin_lock_irqsave(&hc->lock, flags); + if (test_and_clear_bit(FLG_TX_NEXT, &bch->Flags)) { + dev_kfree_skb(bch->next_skb); + bch->next_skb = NULL; + } + if (bch->tx_skb) { + dev_kfree_skb(bch->tx_skb); + bch->tx_skb = NULL; + } + bch->tx_idx = 0; + if (bch->rx_skb) { + dev_kfree_skb(bch->rx_skb); + bch->rx_skb = NULL; + } + hc->chan[bch->slot].coeff_count = 0; + test_and_clear_bit(FLG_ACTIVE, &bch->Flags); + test_and_clear_bit(FLG_TX_BUSY, &bch->Flags); + hc->chan[bch->slot].rx_off = 0; + hc->chan[bch->slot].conf = -1; + mode_hfcmulti(hc, bch->slot, ISDN_P_NONE, -1, 0, -1, 0); + spin_unlock_irqrestore(&hc->lock, flags); +} + +static int +handle_bmsg(struct mISDNchannel *ch, struct sk_buff *skb) +{ + struct bchannel *bch = container_of(ch, struct bchannel, ch); + struct hfc_multi *hc = bch->hw; + int ret = -EINVAL; + struct mISDNhead *hh = mISDN_HEAD_P(skb); + unsigned int id; + u_long flags; + + switch (hh->prim) { + case PH_DATA_REQ: + if (!skb->len) + break; + spin_lock_irqsave(&hc->lock, flags); + ret = bchannel_senddata(bch, skb); + if (ret > 0) { /* direct TX */ + id = hh->id; /* skb can be freed */ + hfcmulti_tx(hc, bch->slot); + ret = 0; + /* start fifo */ + HFC_outb_nodebug(hc, R_FIFO, 0); + HFC_wait_nodebug(hc); + if (!test_bit(FLG_TRANSPARENT, &bch->Flags)) { + spin_unlock_irqrestore(&hc->lock, flags); + queue_ch_frame(ch, PH_DATA_CNF, id, NULL); + } else + spin_unlock_irqrestore(&hc->lock, flags); + } else + spin_unlock_irqrestore(&hc->lock, flags); + return ret; + case PH_ACTIVATE_REQ: + if (debug & DEBUG_HFCMULTI_MSG) + printk(KERN_DEBUG "%s: PH_ACTIVATE ch %d (0..32)\n", + __func__, bch->slot); + spin_lock_irqsave(&hc->lock, flags); + /* activate B-channel if not already activated */ + if (!test_and_set_bit(FLG_ACTIVE, &bch->Flags)) { + hc->chan[bch->slot].txpending = 0; + ret = mode_hfcmulti(hc, bch->slot, + ch->protocol, + hc->chan[bch->slot].slot_tx, + hc->chan[bch->slot].bank_tx, + hc->chan[bch->slot].slot_rx, + hc->chan[bch->slot].bank_rx); + if (!ret) { + if (ch->protocol == ISDN_P_B_RAW && !hc->dtmf + && test_bit(HFC_CHIP_DTMF, &hc->chip)) { + /* start decoder */ + hc->dtmf = 1; + if (debug & DEBUG_HFCMULTI_DTMF) + printk(KERN_DEBUG + "%s: start dtmf decoder\n", + __func__); + HFC_outb(hc, R_DTMF, hc->hw.r_dtmf | + V_RST_DTMF); + } + } + } else + ret = 0; + spin_unlock_irqrestore(&hc->lock, flags); + if (!ret) + _queue_data(ch, PH_ACTIVATE_IND, MISDN_ID_ANY, 0, NULL, + GFP_KERNEL); + break; + case PH_CONTROL_REQ: + spin_lock_irqsave(&hc->lock, flags); + switch (hh->id) { + case HFC_SPL_LOOP_ON: /* set sample loop */ + if (debug & DEBUG_HFCMULTI_MSG) + printk(KERN_DEBUG + "%s: HFC_SPL_LOOP_ON (len = %d)\n", + __func__, skb->len); + ret = 0; + break; + case HFC_SPL_LOOP_OFF: /* set silence */ + if (debug & DEBUG_HFCMULTI_MSG) + printk(KERN_DEBUG "%s: HFC_SPL_LOOP_OFF\n", + __func__); + ret = 0; + break; + default: + printk(KERN_ERR + "%s: unknown PH_CONTROL_REQ info %x\n", + __func__, hh->id); + ret = -EINVAL; + } + spin_unlock_irqrestore(&hc->lock, flags); + break; + case PH_DEACTIVATE_REQ: + deactivate_bchannel(bch); /* locked there */ + _queue_data(ch, PH_DEACTIVATE_IND, MISDN_ID_ANY, 0, NULL, + GFP_KERNEL); + ret = 0; + break; + } + if (!ret) + dev_kfree_skb(skb); + return ret; +} + +/* + * bchannel control function + */ +static int +channel_bctrl(struct bchannel *bch, struct mISDN_ctrl_req *cq) +{ + int ret = 0; + struct dsp_features *features = + (struct dsp_features *)(*((u_long *)&cq->p1)); + struct hfc_multi *hc = bch->hw; + int slot_tx; + int bank_tx; + int slot_rx; + int bank_rx; + int num; + + switch (cq->op) { + case MISDN_CTRL_GETOP: + cq->op = MISDN_CTRL_HFC_OP | MISDN_CTRL_HW_FEATURES_OP + | MISDN_CTRL_RX_OFF; + break; + case MISDN_CTRL_RX_OFF: /* turn off / on rx stream */ + hc->chan[bch->slot].rx_off = !!cq->p1; + if (!hc->chan[bch->slot].rx_off) { + /* reset fifo on rx on */ + HFC_outb_nodebug(hc, R_FIFO, (bch->slot << 1) | 1); + HFC_wait_nodebug(hc); + HFC_outb_nodebug(hc, R_INC_RES_FIFO, V_RES_F); + HFC_wait_nodebug(hc); + } + if (debug & DEBUG_HFCMULTI_MSG) + printk(KERN_DEBUG "%s: RX_OFF request (nr=%d off=%d)\n", + __func__, bch->nr, hc->chan[bch->slot].rx_off); + break; + case MISDN_CTRL_HW_FEATURES: /* fill features structure */ + if (debug & DEBUG_HFCMULTI_MSG) + printk(KERN_DEBUG "%s: HW_FEATURE request\n", + __func__); + /* create confirm */ + features->hfc_id = hc->id; + if (test_bit(HFC_CHIP_DTMF, &hc->chip)) + features->hfc_dtmf = 1; + features->hfc_loops = 0; + if (test_bit(HFC_CHIP_B410P, &hc->chip)) { + features->hfc_echocanhw = 1; + } else { + features->pcm_id = hc->pcm; + features->pcm_slots = hc->slots; + features->pcm_banks = 2; + } + break; + case MISDN_CTRL_HFC_PCM_CONN: /* connect to pcm timeslot (0..N) */ + slot_tx = cq->p1 & 0xff; + bank_tx = cq->p1 >> 8; + slot_rx = cq->p2 & 0xff; + bank_rx = cq->p2 >> 8; + if (debug & DEBUG_HFCMULTI_MSG) + printk(KERN_DEBUG + "%s: HFC_PCM_CONN slot %d bank %d (TX) " + "slot %d bank %d (RX)\n", + __func__, slot_tx, bank_tx, + slot_rx, bank_rx); + if (slot_tx < hc->slots && bank_tx <= 2 && + slot_rx < hc->slots && bank_rx <= 2) + hfcmulti_pcm(hc, bch->slot, + slot_tx, bank_tx, slot_rx, bank_rx); + else { + printk(KERN_WARNING + "%s: HFC_PCM_CONN slot %d bank %d (TX) " + "slot %d bank %d (RX) out of range\n", + __func__, slot_tx, bank_tx, + slot_rx, bank_rx); + ret = -EINVAL; + } + break; + case MISDN_CTRL_HFC_PCM_DISC: /* release interface from pcm timeslot */ + if (debug & DEBUG_HFCMULTI_MSG) + printk(KERN_DEBUG "%s: HFC_PCM_DISC\n", + __func__); + hfcmulti_pcm(hc, bch->slot, -1, 0, -1, 0); + break; + case MISDN_CTRL_HFC_CONF_JOIN: /* join conference (0..7) */ + num = cq->p1 & 0xff; + if (debug & DEBUG_HFCMULTI_MSG) + printk(KERN_DEBUG "%s: HFC_CONF_JOIN conf %d\n", + __func__, num); + if (num <= 7) + hfcmulti_conf(hc, bch->slot, num); + else { + printk(KERN_WARNING + "%s: HW_CONF_JOIN conf %d out of range\n", + __func__, num); + ret = -EINVAL; + } + break; + case MISDN_CTRL_HFC_CONF_SPLIT: /* split conference */ + if (debug & DEBUG_HFCMULTI_MSG) + printk(KERN_DEBUG "%s: HFC_CONF_SPLIT\n", __func__); + hfcmulti_conf(hc, bch->slot, -1); + break; + case MISDN_CTRL_HFC_ECHOCAN_ON: + if (debug & DEBUG_HFCMULTI_MSG) + printk(KERN_DEBUG "%s: HFC_ECHOCAN_ON\n", __func__); + if (test_bit(HFC_CHIP_B410P, &hc->chip)) + vpm_echocan_on(hc, bch->slot, cq->p1); + else + ret = -EINVAL; + break; + + case MISDN_CTRL_HFC_ECHOCAN_OFF: + if (debug & DEBUG_HFCMULTI_MSG) + printk(KERN_DEBUG "%s: HFC_ECHOCAN_OFF\n", + __func__); + if (test_bit(HFC_CHIP_B410P, &hc->chip)) + vpm_echocan_off(hc, bch->slot); + else + ret = -EINVAL; + break; + default: + printk(KERN_WARNING "%s: unknown Op %x\n", + __func__, cq->op); + ret = -EINVAL; + break; + } + return ret; +} + +static int +hfcm_bctrl(struct mISDNchannel *ch, u_int cmd, void *arg) +{ + struct bchannel *bch = container_of(ch, struct bchannel, ch); + struct hfc_multi *hc = bch->hw; + int err = -EINVAL; + u_long flags; + + if (bch->debug & DEBUG_HW) + printk(KERN_DEBUG "%s: cmd:%x %p\n", + __func__, cmd, arg); + switch (cmd) { + case CLOSE_CHANNEL: + test_and_clear_bit(FLG_OPEN, &bch->Flags); + if (test_bit(FLG_ACTIVE, &bch->Flags)) + deactivate_bchannel(bch); /* locked there */ + ch->protocol = ISDN_P_NONE; + ch->peer = NULL; + module_put(THIS_MODULE); + err = 0; + break; + case CONTROL_CHANNEL: + spin_lock_irqsave(&hc->lock, flags); + err = channel_bctrl(bch, arg); + spin_unlock_irqrestore(&hc->lock, flags); + break; + default: + printk(KERN_WARNING "%s: unknown prim(%x)\n", + __func__, cmd); + } + return err; +} + +/* + * handle D-channel events + * + * handle state change event + */ +static void +ph_state_change(struct dchannel *dch) +{ + struct hfc_multi *hc = dch->hw; + int ch, i; + + if (!dch) { + printk(KERN_WARNING "%s: ERROR given dch is NULL\n", + __func__); + return; + } + ch = dch->slot; + + if (hc->type == 1) { + if (dch->dev.D.protocol == ISDN_P_TE_E1) { + if (debug & DEBUG_HFCMULTI_STATE) + printk(KERN_DEBUG + "%s: E1 TE (id=%d) newstate %x\n", + __func__, hc->id, dch->state); + } else { + if (debug & DEBUG_HFCMULTI_STATE) + printk(KERN_DEBUG + "%s: E1 NT (id=%d) newstate %x\n", + __func__, hc->id, dch->state); + } + switch (dch->state) { + case (1): + if (hc->e1_state != 1) { + for (i = 1; i <= 31; i++) { + /* reset fifos on e1 activation */ + HFC_outb_nodebug(hc, R_FIFO, (i << 1) | 1); + HFC_wait_nodebug(hc); + HFC_outb_nodebug(hc, + R_INC_RES_FIFO, V_RES_F); + HFC_wait_nodebug(hc); + } + } + test_and_set_bit(FLG_ACTIVE, &dch->Flags); + _queue_data(&dch->dev.D, PH_ACTIVATE_IND, + MISDN_ID_ANY, 0, NULL, GFP_ATOMIC); + break; + + default: + if (hc->e1_state != 1) + return; + test_and_clear_bit(FLG_ACTIVE, &dch->Flags); + _queue_data(&dch->dev.D, PH_DEACTIVATE_IND, + MISDN_ID_ANY, 0, NULL, GFP_ATOMIC); + } + hc->e1_state = dch->state; + } else { + if (dch->dev.D.protocol == ISDN_P_TE_S0) { + if (debug & DEBUG_HFCMULTI_STATE) + printk(KERN_DEBUG + "%s: S/T TE newstate %x\n", + __func__, dch->state); + switch (dch->state) { + case (0): + l1_event(dch->l1, HW_RESET_IND); + break; + case (3): + l1_event(dch->l1, HW_DEACT_IND); + break; + case (5): + case (8): + l1_event(dch->l1, ANYSIGNAL); + break; + case (6): + l1_event(dch->l1, INFO2); + break; + case (7): + l1_event(dch->l1, INFO4_P8); + break; + } + } else { + if (debug & DEBUG_HFCMULTI_STATE) + printk(KERN_DEBUG "%s: S/T NT newstate %x\n", + __func__, dch->state); + switch (dch->state) { + case (2): + if (hc->chan[ch].nt_timer == 0) { + hc->chan[ch].nt_timer = -1; + HFC_outb(hc, R_ST_SEL, + hc->chan[ch].port); + /* undocumented: delay after R_ST_SEL */ + udelay(1); + HFC_outb(hc, A_ST_WR_STATE, 4 | + V_ST_LD_STA); /* G4 */ + udelay(6); /* wait at least 5,21us */ + HFC_outb(hc, A_ST_WR_STATE, 4); + dch->state = 4; + } else { + /* one extra count for the next event */ + hc->chan[ch].nt_timer = + nt_t1_count[poll_timer] + 1; + HFC_outb(hc, R_ST_SEL, + hc->chan[ch].port); + /* undocumented: delay after R_ST_SEL */ + udelay(1); + /* allow G2 -> G3 transition */ + HFC_outb(hc, A_ST_WR_STATE, 2 | + V_SET_G2_G3); + } + break; + case (1): + hc->chan[ch].nt_timer = -1; + test_and_clear_bit(FLG_ACTIVE, &dch->Flags); + _queue_data(&dch->dev.D, PH_DEACTIVATE_IND, + MISDN_ID_ANY, 0, NULL, GFP_ATOMIC); + break; + case (4): + hc->chan[ch].nt_timer = -1; + break; + case (3): + hc->chan[ch].nt_timer = -1; + test_and_set_bit(FLG_ACTIVE, &dch->Flags); + _queue_data(&dch->dev.D, PH_ACTIVATE_IND, + MISDN_ID_ANY, 0, NULL, GFP_ATOMIC); + break; + } + } + } +} + +/* + * called for card mode init message + */ + +static void +hfcmulti_initmode(struct dchannel *dch) +{ + struct hfc_multi *hc = dch->hw; + u_char a_st_wr_state, r_e1_wr_sta; + int i, pt; + + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG "%s: entered\n", __func__); + + if (hc->type == 1) { + hc->chan[hc->dslot].slot_tx = -1; + hc->chan[hc->dslot].slot_rx = -1; + hc->chan[hc->dslot].conf = -1; + if (hc->dslot) { + mode_hfcmulti(hc, hc->dslot, dch->dev.D.protocol, + -1, 0, -1, 0); + dch->timer.function = (void *) hfcmulti_dbusy_timer; + dch->timer.data = (long) dch; + init_timer(&dch->timer); + } + for (i = 1; i <= 31; i++) { + if (i == hc->dslot) + continue; + hc->chan[i].slot_tx = -1; + hc->chan[i].slot_rx = -1; + hc->chan[i].conf = -1; + mode_hfcmulti(hc, i, ISDN_P_NONE, -1, 0, -1, 0); + } + /* E1 */ + if (test_bit(HFC_CFG_REPORT_LOS, &hc->chan[hc->dslot].cfg)) { + HFC_outb(hc, R_LOS0, 255); /* 2 ms */ + HFC_outb(hc, R_LOS1, 255); /* 512 ms */ + } + if (test_bit(HFC_CFG_OPTICAL, &hc->chan[hc->dslot].cfg)) { + HFC_outb(hc, R_RX0, 0); + hc->hw.r_tx0 = 0 | V_OUT_EN; + } else { + HFC_outb(hc, R_RX0, 1); + hc->hw.r_tx0 = 1 | V_OUT_EN; + } + hc->hw.r_tx1 = V_ATX | V_NTRI; + HFC_outb(hc, R_TX0, hc->hw.r_tx0); + HFC_outb(hc, R_TX1, hc->hw.r_tx1); + HFC_outb(hc, R_TX_FR0, 0x00); + HFC_outb(hc, R_TX_FR1, 0xf8); + + if (test_bit(HFC_CFG_CRC4, &hc->chan[hc->dslot].cfg)) + HFC_outb(hc, R_TX_FR2, V_TX_MF | V_TX_E | V_NEG_E); + + HFC_outb(hc, R_RX_FR0, V_AUTO_RESYNC | V_AUTO_RECO | 0); + + if (test_bit(HFC_CFG_CRC4, &hc->chan[hc->dslot].cfg)) + HFC_outb(hc, R_RX_FR1, V_RX_MF | V_RX_MF_SYNC); + + if (dch->dev.D.protocol == ISDN_P_NT_E1) { + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG "%s: E1 port is NT-mode\n", + __func__); + r_e1_wr_sta = 0; /* G0 */ + hc->e1_getclock = 0; + } else { + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG "%s: E1 port is TE-mode\n", + __func__); + r_e1_wr_sta = 0; /* F0 */ + hc->e1_getclock = 1; + } + if (test_bit(HFC_CHIP_RX_SYNC, &hc->chip)) + HFC_outb(hc, R_SYNC_OUT, V_SYNC_E1_RX); + else + HFC_outb(hc, R_SYNC_OUT, 0); + if (test_bit(HFC_CHIP_E1CLOCK_GET, &hc->chip)) + hc->e1_getclock = 1; + if (test_bit(HFC_CHIP_E1CLOCK_PUT, &hc->chip)) + hc->e1_getclock = 0; + if (test_bit(HFC_CHIP_PCM_SLAVE, &hc->chip)) { + /* SLAVE (clock master) */ + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG + "%s: E1 port is clock master " + "(clock from PCM)\n", __func__); + HFC_outb(hc, R_SYNC_CTRL, V_EXT_CLK_SYNC | V_PCM_SYNC); + } else { + if (hc->e1_getclock) { + /* MASTER (clock slave) */ + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG + "%s: E1 port is clock slave " + "(clock to PCM)\n", __func__); + HFC_outb(hc, R_SYNC_CTRL, V_SYNC_OFFS); + } else { + /* MASTER (clock master) */ + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG "%s: E1 port is " + "clock master " + "(clock from QUARTZ)\n", + __func__); + HFC_outb(hc, R_SYNC_CTRL, V_EXT_CLK_SYNC | + V_PCM_SYNC | V_JATT_OFF); + HFC_outb(hc, R_SYNC_OUT, 0); + } + } + HFC_outb(hc, R_JATT_ATT, 0x9c); /* undoc register */ + HFC_outb(hc, R_PWM_MD, V_PWM0_MD); + HFC_outb(hc, R_PWM0, 0x50); + HFC_outb(hc, R_PWM1, 0xff); + /* state machine setup */ + HFC_outb(hc, R_E1_WR_STA, r_e1_wr_sta | V_E1_LD_STA); + udelay(6); /* wait at least 5,21us */ + HFC_outb(hc, R_E1_WR_STA, r_e1_wr_sta); + if (test_bit(HFC_CHIP_PLXSD, &hc->chip)) { + hc->syncronized = 0; + plxsd_checksync(hc, 0); + } + } else { + i = dch->slot; + hc->chan[i].slot_tx = -1; + hc->chan[i].slot_rx = -1; + hc->chan[i].conf = -1; + mode_hfcmulti(hc, i, dch->dev.D.protocol, -1, 0, -1, 0); + dch->timer.function = (void *)hfcmulti_dbusy_timer; + dch->timer.data = (long) dch; + init_timer(&dch->timer); + hc->chan[i - 2].slot_tx = -1; + hc->chan[i - 2].slot_rx = -1; + hc->chan[i - 2].conf = -1; + mode_hfcmulti(hc, i - 2, ISDN_P_NONE, -1, 0, -1, 0); + hc->chan[i - 1].slot_tx = -1; + hc->chan[i - 1].slot_rx = -1; + hc->chan[i - 1].conf = -1; + mode_hfcmulti(hc, i - 1, ISDN_P_NONE, -1, 0, -1, 0); + /* ST */ + pt = hc->chan[i].port; + /* select interface */ + HFC_outb(hc, R_ST_SEL, pt); + /* undocumented: delay after R_ST_SEL */ + udelay(1); + if (dch->dev.D.protocol == ISDN_P_NT_S0) { + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG + "%s: ST port %d is NT-mode\n", + __func__, pt); + /* clock delay */ + HFC_outb(hc, A_ST_CLK_DLY, clockdelay_nt); + a_st_wr_state = 1; /* G1 */ + hc->hw.a_st_ctrl0[pt] = V_ST_MD; + } else { + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG + "%s: ST port %d is TE-mode\n", + __func__, pt); + /* clock delay */ + HFC_outb(hc, A_ST_CLK_DLY, clockdelay_te); + a_st_wr_state = 2; /* F2 */ + hc->hw.a_st_ctrl0[pt] = 0; + } + if (!test_bit(HFC_CFG_NONCAP_TX, &hc->chan[i].cfg)) + hc->hw.a_st_ctrl0[pt] |= V_TX_LI; + /* line setup */ + HFC_outb(hc, A_ST_CTRL0, hc->hw.a_st_ctrl0[pt]); + /* disable E-channel */ + if ((dch->dev.D.protocol == ISDN_P_NT_S0) || + test_bit(HFC_CFG_DIS_ECHANNEL, &hc->chan[i].cfg)) + HFC_outb(hc, A_ST_CTRL1, V_E_IGNO); + else + HFC_outb(hc, A_ST_CTRL1, 0); + /* enable B-channel receive */ + HFC_outb(hc, A_ST_CTRL2, V_B1_RX_EN | V_B2_RX_EN); + /* state machine setup */ + HFC_outb(hc, A_ST_WR_STATE, a_st_wr_state | V_ST_LD_STA); + udelay(6); /* wait at least 5,21us */ + HFC_outb(hc, A_ST_WR_STATE, a_st_wr_state); + hc->hw.r_sci_msk |= 1 << pt; + /* state machine interrupts */ + HFC_outb(hc, R_SCI_MSK, hc->hw.r_sci_msk); + /* unset sync on port */ + if (test_bit(HFC_CHIP_PLXSD, &hc->chip)) { + hc->syncronized &= + ~(1 << hc->chan[dch->slot].port); + plxsd_checksync(hc, 0); + } + } + if (debug & DEBUG_HFCMULTI_INIT) + printk("%s: done\n", __func__); +} + + +static int +open_dchannel(struct hfc_multi *hc, struct dchannel *dch, + struct channel_req *rq) +{ + int err = 0; + u_long flags; + + if (debug & DEBUG_HW_OPEN) + printk(KERN_DEBUG "%s: dev(%d) open from %p\n", __func__, + dch->dev.id, __builtin_return_address(0)); + if (rq->protocol == ISDN_P_NONE) + return -EINVAL; + if ((dch->dev.D.protocol != ISDN_P_NONE) && + (dch->dev.D.protocol != rq->protocol)) { + if (debug & DEBUG_HFCMULTI_MODE) + printk(KERN_WARNING "%s: change protocol %x to %x\n", + __func__, dch->dev.D.protocol, rq->protocol); + } + if ((dch->dev.D.protocol == ISDN_P_TE_S0) + && (rq->protocol != ISDN_P_TE_S0)) + l1_event(dch->l1, CLOSE_CHANNEL); + if (dch->dev.D.protocol != rq->protocol) { + if (rq->protocol == ISDN_P_TE_S0) { + err = create_l1(dch, hfcm_l1callback); + if (err) + return err; + } + dch->dev.D.protocol = rq->protocol; + spin_lock_irqsave(&hc->lock, flags); + hfcmulti_initmode(dch); + spin_unlock_irqrestore(&hc->lock, flags); + } + + if (((rq->protocol == ISDN_P_NT_S0) && (dch->state == 3)) || + ((rq->protocol == ISDN_P_TE_S0) && (dch->state == 7)) || + ((rq->protocol == ISDN_P_NT_E1) && (dch->state == 1)) || + ((rq->protocol == ISDN_P_TE_E1) && (dch->state == 1))) { + _queue_data(&dch->dev.D, PH_ACTIVATE_IND, MISDN_ID_ANY, + 0, NULL, GFP_KERNEL); + } + rq->ch = &dch->dev.D; + if (!try_module_get(THIS_MODULE)) + printk(KERN_WARNING "%s:cannot get module\n", __func__); + return 0; +} + +static int +open_bchannel(struct hfc_multi *hc, struct dchannel *dch, + struct channel_req *rq) +{ + struct bchannel *bch; + int ch; + + if (!test_bit(rq->adr.channel, &dch->dev.channelmap[0])) + return -EINVAL; + if (rq->protocol == ISDN_P_NONE) + return -EINVAL; + if (hc->type == 1) + ch = rq->adr.channel; + else + ch = (rq->adr.channel - 1) + (dch->slot - 2); + bch = hc->chan[ch].bch; + if (!bch) { + printk(KERN_ERR "%s:internal error ch %d has no bch\n", + __func__, ch); + return -EINVAL; + } + if (test_and_set_bit(FLG_OPEN, &bch->Flags)) + return -EBUSY; /* b-channel can be only open once */ + bch->ch.protocol = rq->protocol; + hc->chan[ch].rx_off = 0; + rq->ch = &bch->ch; + if (!try_module_get(THIS_MODULE)) + printk(KERN_WARNING "%s:cannot get module\n", __func__); + return 0; +} + +/* + * device control function + */ +static int +channel_dctrl(struct dchannel *dch, struct mISDN_ctrl_req *cq) +{ + int ret = 0; + + switch (cq->op) { + case MISDN_CTRL_GETOP: + cq->op = 0; + break; + default: + printk(KERN_WARNING "%s: unknown Op %x\n", + __func__, cq->op); + ret = -EINVAL; + break; + } + return ret; +} + +static int +hfcm_dctrl(struct mISDNchannel *ch, u_int cmd, void *arg) +{ + struct mISDNdevice *dev = container_of(ch, struct mISDNdevice, D); + struct dchannel *dch = container_of(dev, struct dchannel, dev); + struct hfc_multi *hc = dch->hw; + struct channel_req *rq; + int err = 0; + u_long flags; + + if (dch->debug & DEBUG_HW) + printk(KERN_DEBUG "%s: cmd:%x %p\n", + __func__, cmd, arg); + switch (cmd) { + case OPEN_CHANNEL: + rq = arg; + switch (rq->protocol) { + case ISDN_P_TE_S0: + case ISDN_P_NT_S0: + if (hc->type == 1) { + err = -EINVAL; + break; + } + err = open_dchannel(hc, dch, rq); /* locked there */ + break; + case ISDN_P_TE_E1: + case ISDN_P_NT_E1: + if (hc->type != 1) { + err = -EINVAL; + break; + } + err = open_dchannel(hc, dch, rq); /* locked there */ + break; + default: + spin_lock_irqsave(&hc->lock, flags); + err = open_bchannel(hc, dch, rq); + spin_unlock_irqrestore(&hc->lock, flags); + } + break; + case CLOSE_CHANNEL: + if (debug & DEBUG_HW_OPEN) + printk(KERN_DEBUG "%s: dev(%d) close from %p\n", + __func__, dch->dev.id, + __builtin_return_address(0)); + module_put(THIS_MODULE); + break; + case CONTROL_CHANNEL: + spin_lock_irqsave(&hc->lock, flags); + err = channel_dctrl(dch, arg); + spin_unlock_irqrestore(&hc->lock, flags); + break; + default: + if (dch->debug & DEBUG_HW) + printk(KERN_DEBUG "%s: unknown command %x\n", + __func__, cmd); + err = -EINVAL; + } + return err; +} + +/* + * initialize the card + */ + +/* + * start timer irq, wait some time and check if we have interrupts. + * if not, reset chip and try again. + */ +static int +init_card(struct hfc_multi *hc) +{ + int err = -EIO; + u_long flags; + u_short *plx_acc; + u_long plx_flags; + + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG "%s: entered\n", __func__); + + spin_lock_irqsave(&hc->lock, flags); + /* set interrupts but leave global interrupt disabled */ + hc->hw.r_irq_ctrl = V_FIFO_IRQ; + disable_hwirq(hc); + spin_unlock_irqrestore(&hc->lock, flags); + + if (request_irq(hc->pci_dev->irq, hfcmulti_interrupt, IRQF_SHARED, + "HFC-multi", hc)) { + printk(KERN_WARNING "mISDN: Could not get interrupt %d.\n", + hc->pci_dev->irq); + return -EIO; + } + hc->irq = hc->pci_dev->irq; + + if (test_bit(HFC_CHIP_PLXSD, &hc->chip)) { + spin_lock_irqsave(&plx_lock, plx_flags); + plx_acc = (u_short *)(hc->plx_membase+PLX_INTCSR); + writew((PLX_INTCSR_PCIINT_ENABLE | PLX_INTCSR_LINTI1_ENABLE), + plx_acc); /* enable PCI & LINT1 irq */ + spin_unlock_irqrestore(&plx_lock, plx_flags); + } + + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG "%s: IRQ %d count %d\n", + __func__, hc->irq, hc->irqcnt); + err = init_chip(hc); + if (err) + goto error; + /* + * Finally enable IRQ output + * this is only allowed, if an IRQ routine is allready + * established for this HFC, so don't do that earlier + */ + spin_lock_irqsave(&hc->lock, flags); + enable_hwirq(hc); + spin_unlock_irqrestore(&hc->lock, flags); + /* printk(KERN_DEBUG "no master irq set!!!\n"); */ + set_current_state(TASK_UNINTERRUPTIBLE); + schedule_timeout((100*HZ)/1000); /* Timeout 100ms */ + /* turn IRQ off until chip is completely initialized */ + spin_lock_irqsave(&hc->lock, flags); + disable_hwirq(hc); + spin_unlock_irqrestore(&hc->lock, flags); + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG "%s: IRQ %d count %d\n", + __func__, hc->irq, hc->irqcnt); + if (hc->irqcnt) { + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG "%s: done\n", __func__); + + return 0; + } + if (test_bit(HFC_CHIP_PCM_SLAVE, &hc->chip)) { + printk(KERN_INFO "ignoring missing interrupts\n"); + return 0; + } + + printk(KERN_ERR "HFC PCI: IRQ(%d) getting no interrupts during init.\n", + hc->irq); + + err = -EIO; + +error: + if (test_bit(HFC_CHIP_PLXSD, &hc->chip)) { + spin_lock_irqsave(&plx_lock, plx_flags); + plx_acc = (u_short *)(hc->plx_membase+PLX_INTCSR); + writew(0x00, plx_acc); /*disable IRQs*/ + spin_unlock_irqrestore(&plx_lock, plx_flags); + } + + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_WARNING "%s: free irq %d\n", __func__, hc->irq); + if (hc->irq) { + free_irq(hc->irq, hc); + hc->irq = 0; + } + + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG "%s: done (err=%d)\n", __func__, err); + return err; +} + +/* + * find pci device and set it up + */ + +static int +setup_pci(struct hfc_multi *hc, struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + struct hm_map *m = (struct hm_map *)ent->driver_data; + + printk(KERN_INFO + "HFC-multi: card manufacturer: '%s' card name: '%s' clock: %s\n", + m->vendor_name, m->card_name, m->clock2 ? "double" : "normal"); + + hc->pci_dev = pdev; + if (m->clock2) + test_and_set_bit(HFC_CHIP_CLOCK2, &hc->chip); + + if (ent->device == 0xB410) { + test_and_set_bit(HFC_CHIP_B410P, &hc->chip); + test_and_set_bit(HFC_CHIP_PCM_MASTER, &hc->chip); + test_and_clear_bit(HFC_CHIP_PCM_SLAVE, &hc->chip); + hc->slots = 32; + } + + if (hc->pci_dev->irq <= 0) { + printk(KERN_WARNING "HFC-multi: No IRQ for PCI card found.\n"); + return -EIO; + } + if (pci_enable_device(hc->pci_dev)) { + printk(KERN_WARNING "HFC-multi: Error enabling PCI card.\n"); + return -EIO; + } + hc->leds = m->leds; + hc->ledstate = 0xAFFEAFFE; + hc->opticalsupport = m->opticalsupport; + + /* set memory access methods */ + if (m->io_mode) /* use mode from card config */ + hc->io_mode = m->io_mode; + switch (hc->io_mode) { + case HFC_IO_MODE_PLXSD: + test_and_set_bit(HFC_CHIP_PLXSD, &hc->chip); + hc->slots = 128; /* required */ + /* fall through */ + case HFC_IO_MODE_PCIMEM: + hc->HFC_outb = HFC_outb_pcimem; + hc->HFC_inb = HFC_inb_pcimem; + hc->HFC_inw = HFC_inw_pcimem; + hc->HFC_wait = HFC_wait_pcimem; + hc->read_fifo = read_fifo_pcimem; + hc->write_fifo = write_fifo_pcimem; + break; + case HFC_IO_MODE_REGIO: + hc->HFC_outb = HFC_outb_regio; + hc->HFC_inb = HFC_inb_regio; + hc->HFC_inw = HFC_inw_regio; + hc->HFC_wait = HFC_wait_regio; + hc->read_fifo = read_fifo_regio; + hc->write_fifo = write_fifo_regio; + break; + default: + printk(KERN_WARNING "HFC-multi: Invalid IO mode.\n"); + pci_disable_device(hc->pci_dev); + return -EIO; + } + hc->HFC_outb_nodebug = hc->HFC_outb; + hc->HFC_inb_nodebug = hc->HFC_inb; + hc->HFC_inw_nodebug = hc->HFC_inw; + hc->HFC_wait_nodebug = hc->HFC_wait; +#ifdef HFC_REGISTER_DEBUG + hc->HFC_outb = HFC_outb_debug; + hc->HFC_inb = HFC_inb_debug; + hc->HFC_inw = HFC_inw_debug; + hc->HFC_wait = HFC_wait_debug; +#endif + hc->pci_iobase = 0; + hc->pci_membase = NULL; + hc->plx_membase = NULL; + + switch (hc->io_mode) { + case HFC_IO_MODE_PLXSD: + hc->plx_origmembase = hc->pci_dev->resource[0].start; + /* MEMBASE 1 is PLX PCI Bridge */ + + if (!hc->plx_origmembase) { + printk(KERN_WARNING + "HFC-multi: No IO-Memory for PCI PLX bridge found\n"); + pci_disable_device(hc->pci_dev); + return -EIO; + } + + hc->plx_membase = ioremap(hc->plx_origmembase, 0x80); + if (!hc->plx_membase) { + printk(KERN_WARNING + "HFC-multi: failed to remap plx address space. " + "(internal error)\n"); + pci_disable_device(hc->pci_dev); + return -EIO; + } + printk(KERN_INFO + "HFC-multi: plx_membase:%#lx plx_origmembase:%#lx\n", + (u_long)hc->plx_membase, hc->plx_origmembase); + + hc->pci_origmembase = hc->pci_dev->resource[2].start; + /* MEMBASE 1 is PLX PCI Bridge */ + if (!hc->pci_origmembase) { + printk(KERN_WARNING + "HFC-multi: No IO-Memory for PCI card found\n"); + pci_disable_device(hc->pci_dev); + return -EIO; + } + + hc->pci_membase = ioremap(hc->pci_origmembase, 0x400); + if (!hc->pci_membase) { + printk(KERN_WARNING "HFC-multi: failed to remap io " + "address space. (internal error)\n"); + pci_disable_device(hc->pci_dev); + return -EIO; + } + + printk(KERN_INFO + "card %d: defined at MEMBASE %#lx (%#lx) IRQ %d HZ %d " + "leds-type %d\n", + hc->id, (u_long)hc->pci_membase, hc->pci_origmembase, + hc->pci_dev->irq, HZ, hc->leds); + pci_write_config_word(hc->pci_dev, PCI_COMMAND, PCI_ENA_MEMIO); + break; + case HFC_IO_MODE_PCIMEM: + hc->pci_origmembase = hc->pci_dev->resource[1].start; + if (!hc->pci_origmembase) { + printk(KERN_WARNING + "HFC-multi: No IO-Memory for PCI card found\n"); + pci_disable_device(hc->pci_dev); + return -EIO; + } + + hc->pci_membase = ioremap(hc->pci_origmembase, 256); + if (!hc->pci_membase) { + printk(KERN_WARNING + "HFC-multi: failed to remap io address space. " + "(internal error)\n"); + pci_disable_device(hc->pci_dev); + return -EIO; + } + printk(KERN_INFO "card %d: defined at MEMBASE %#lx (%#lx) IRQ %d " + "HZ %d leds-type %d\n", hc->id, (u_long)hc->pci_membase, + hc->pci_origmembase, hc->pci_dev->irq, HZ, hc->leds); + pci_write_config_word(hc->pci_dev, PCI_COMMAND, PCI_ENA_MEMIO); + break; + case HFC_IO_MODE_REGIO: + hc->pci_iobase = (u_int) hc->pci_dev->resource[0].start; + if (!hc->pci_iobase) { + printk(KERN_WARNING + "HFC-multi: No IO for PCI card found\n"); + pci_disable_device(hc->pci_dev); + return -EIO; + } + + if (!request_region(hc->pci_iobase, 8, "hfcmulti")) { + printk(KERN_WARNING "HFC-multi: failed to request " + "address space at 0x%08lx (internal error)\n", + hc->pci_iobase); + pci_disable_device(hc->pci_dev); + return -EIO; + } + + printk(KERN_INFO + "%s %s: defined at IOBASE %#x IRQ %d HZ %d leds-type %d\n", + m->vendor_name, m->card_name, (u_int) hc->pci_iobase, + hc->pci_dev->irq, HZ, hc->leds); + pci_write_config_word(hc->pci_dev, PCI_COMMAND, PCI_ENA_REGIO); + break; + default: + printk(KERN_WARNING "HFC-multi: Invalid IO mode.\n"); + pci_disable_device(hc->pci_dev); + return -EIO; + } + + pci_set_drvdata(hc->pci_dev, hc); + + /* At this point the needed PCI config is done */ + /* fifos are still not enabled */ + return 0; +} + + +/* + * remove port + */ + +static void +release_port(struct hfc_multi *hc, struct dchannel *dch) +{ + int pt, ci, i = 0; + u_long flags; + struct bchannel *pb; + + ci = dch->slot; + pt = hc->chan[ci].port; + + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG "%s: entered for port %d\n", + __func__, pt + 1); + + if (pt >= hc->ports) { + printk(KERN_WARNING "%s: ERROR port out of range (%d).\n", + __func__, pt + 1); + return; + } + + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG "%s: releasing port=%d\n", + __func__, pt + 1); + + if (dch->dev.D.protocol == ISDN_P_TE_S0) + l1_event(dch->l1, CLOSE_CHANNEL); + + hc->chan[ci].dch = NULL; + + if (hc->created[pt]) { + hc->created[pt] = 0; + mISDN_unregister_device(&dch->dev); + } + + spin_lock_irqsave(&hc->lock, flags); + + if (dch->timer.function) { + del_timer(&dch->timer); + dch->timer.function = NULL; + } + + if (hc->type == 1) { /* E1 */ + /* remove sync */ + if (test_bit(HFC_CHIP_PLXSD, &hc->chip)) { + hc->syncronized = 0; + plxsd_checksync(hc, 1); + } + /* free channels */ + for (i = 0; i <= 31; i++) { + if (hc->chan[i].bch) { + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG + "%s: free port %d channel %d\n", + __func__, hc->chan[i].port+1, i); + pb = hc->chan[i].bch; + hc->chan[i].bch = NULL; + spin_unlock_irqrestore(&hc->lock, flags); + mISDN_freebchannel(pb); + kfree(pb); + kfree(hc->chan[i].coeff); + spin_lock_irqsave(&hc->lock, flags); + } + } + } else { + /* remove sync */ + if (test_bit(HFC_CHIP_PLXSD, &hc->chip)) { + hc->syncronized &= + ~(1 << hc->chan[ci].port); + plxsd_checksync(hc, 1); + } + /* free channels */ + if (hc->chan[ci - 2].bch) { + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG + "%s: free port %d channel %d\n", + __func__, hc->chan[ci - 2].port+1, + ci - 2); + pb = hc->chan[ci - 2].bch; + hc->chan[ci - 2].bch = NULL; + spin_unlock_irqrestore(&hc->lock, flags); + mISDN_freebchannel(pb); + kfree(pb); + kfree(hc->chan[ci - 2].coeff); + spin_lock_irqsave(&hc->lock, flags); + } + if (hc->chan[ci - 1].bch) { + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG + "%s: free port %d channel %d\n", + __func__, hc->chan[ci - 1].port+1, + ci - 1); + pb = hc->chan[ci - 1].bch; + hc->chan[ci - 1].bch = NULL; + spin_unlock_irqrestore(&hc->lock, flags); + mISDN_freebchannel(pb); + kfree(pb); + kfree(hc->chan[ci - 1].coeff); + spin_lock_irqsave(&hc->lock, flags); + } + } + + spin_unlock_irqrestore(&hc->lock, flags); + + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG "%s: free port %d channel D\n", __func__, pt); + mISDN_freedchannel(dch); + kfree(dch); + + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG "%s: done!\n", __func__); +} + +static void +release_card(struct hfc_multi *hc) +{ + u_long flags; + int ch; + + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_WARNING "%s: release card (%d) entered\n", + __func__, hc->id); + + spin_lock_irqsave(&hc->lock, flags); + disable_hwirq(hc); + spin_unlock_irqrestore(&hc->lock, flags); + + udelay(1000); + + /* dimm leds */ + if (hc->leds) + hfcmulti_leds(hc); + + /* disable D-channels & B-channels */ + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG "%s: disable all channels (d and b)\n", + __func__); + for (ch = 0; ch <= 31; ch++) { + if (hc->chan[ch].dch) + release_port(hc, hc->chan[ch].dch); + } + + /* release hardware & irq */ + if (hc->irq) { + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_WARNING "%s: free irq %d\n", + __func__, hc->irq); + free_irq(hc->irq, hc); + hc->irq = 0; + + } + release_io_hfcmulti(hc); + + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_WARNING "%s: remove instance from list\n", + __func__); + list_del(&hc->list); + + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_WARNING "%s: delete instance\n", __func__); + if (hc == syncmaster) + syncmaster = NULL; + kfree(hc); + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_WARNING "%s: card successfully removed\n", + __func__); +} + +static int +init_e1_port(struct hfc_multi *hc, struct hm_map *m) +{ + struct dchannel *dch; + struct bchannel *bch; + int ch, ret = 0; + char name[MISDN_MAX_IDLEN]; + + dch = kzalloc(sizeof(struct dchannel), GFP_KERNEL); + if (!dch) + return -ENOMEM; + dch->debug = debug; + mISDN_initdchannel(dch, MAX_DFRAME_LEN_L1, ph_state_change); + dch->hw = hc; + dch->dev.Dprotocols = (1 << ISDN_P_TE_E1) | (1 << ISDN_P_NT_E1); + dch->dev.Bprotocols = (1 << (ISDN_P_B_RAW & ISDN_P_B_MASK)) | + (1 << (ISDN_P_B_HDLC & ISDN_P_B_MASK)); + dch->dev.D.send = handle_dmsg; + dch->dev.D.ctrl = hfcm_dctrl; + dch->dev.nrbchan = (hc->dslot)?30:31; + dch->slot = hc->dslot; + hc->chan[hc->dslot].dch = dch; + hc->chan[hc->dslot].port = 0; + hc->chan[hc->dslot].nt_timer = -1; + for (ch = 1; ch <= 31; ch++) { + if (ch == hc->dslot) /* skip dchannel */ + continue; + bch = kzalloc(sizeof(struct bchannel), GFP_KERNEL); + if (!bch) { + printk(KERN_ERR "%s: no memory for bchannel\n", + __func__); + ret = -ENOMEM; + goto free_chan; + } + hc->chan[ch].coeff = kzalloc(512, GFP_KERNEL); + if (!hc->chan[ch].coeff) { + printk(KERN_ERR "%s: no memory for coeffs\n", + __func__); + ret = -ENOMEM; + goto free_chan; + } + bch->nr = ch; + bch->slot = ch; + bch->debug = debug; + mISDN_initbchannel(bch, MAX_DATA_MEM); + bch->hw = hc; + bch->ch.send = handle_bmsg; + bch->ch.ctrl = hfcm_bctrl; + bch->ch.nr = ch; + list_add(&bch->ch.list, &dch->dev.bchannels); + hc->chan[ch].bch = bch; + hc->chan[ch].port = 0; + test_and_set_bit(bch->nr, &dch->dev.channelmap[0]); + } + /* set optical line type */ + if (port[Port_cnt] & 0x001) { + if (!m->opticalsupport) { + printk(KERN_INFO + "This board has no optical " + "support\n"); + } else { + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG + "%s: PORT set optical " + "interfacs: card(%d) " + "port(%d)\n", + __func__, + HFC_cnt + 1, 1); + test_and_set_bit(HFC_CFG_OPTICAL, + &hc->chan[hc->dslot].cfg); + } + } + /* set LOS report */ + if (port[Port_cnt] & 0x004) { + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG "%s: PORT set " + "LOS report: card(%d) port(%d)\n", + __func__, HFC_cnt + 1, 1); + test_and_set_bit(HFC_CFG_REPORT_LOS, + &hc->chan[hc->dslot].cfg); + } + /* set AIS report */ + if (port[Port_cnt] & 0x008) { + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG "%s: PORT set " + "AIS report: card(%d) port(%d)\n", + __func__, HFC_cnt + 1, 1); + test_and_set_bit(HFC_CFG_REPORT_AIS, + &hc->chan[hc->dslot].cfg); + } + /* set SLIP report */ + if (port[Port_cnt] & 0x010) { + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG + "%s: PORT set SLIP report: " + "card(%d) port(%d)\n", + __func__, HFC_cnt + 1, 1); + test_and_set_bit(HFC_CFG_REPORT_SLIP, + &hc->chan[hc->dslot].cfg); + } + /* set RDI report */ + if (port[Port_cnt] & 0x020) { + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG + "%s: PORT set RDI report: " + "card(%d) port(%d)\n", + __func__, HFC_cnt + 1, 1); + test_and_set_bit(HFC_CFG_REPORT_RDI, + &hc->chan[hc->dslot].cfg); + } + /* set CRC-4 Mode */ + if (!(port[Port_cnt] & 0x100)) { + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG "%s: PORT turn on CRC4 report:" + " card(%d) port(%d)\n", + __func__, HFC_cnt + 1, 1); + test_and_set_bit(HFC_CFG_CRC4, + &hc->chan[hc->dslot].cfg); + } else { + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG "%s: PORT turn off CRC4" + " report: card(%d) port(%d)\n", + __func__, HFC_cnt + 1, 1); + } + /* set forced clock */ + if (port[Port_cnt] & 0x0200) { + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG "%s: PORT force getting clock from " + "E1: card(%d) port(%d)\n", + __func__, HFC_cnt + 1, 1); + test_and_set_bit(HFC_CHIP_E1CLOCK_GET, &hc->chip); + } else + if (port[Port_cnt] & 0x0400) { + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG "%s: PORT force putting clock to " + "E1: card(%d) port(%d)\n", + __func__, HFC_cnt + 1, 1); + test_and_set_bit(HFC_CHIP_E1CLOCK_PUT, &hc->chip); + } + /* set JATT PLL */ + if (port[Port_cnt] & 0x0800) { + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG "%s: PORT disable JATT PLL on " + "E1: card(%d) port(%d)\n", + __func__, HFC_cnt + 1, 1); + test_and_set_bit(HFC_CHIP_RX_SYNC, &hc->chip); + } + /* set elastic jitter buffer */ + if (port[Port_cnt] & 0x3000) { + hc->chan[hc->dslot].jitter = (port[Port_cnt]>>12) & 0x3; + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG + "%s: PORT set elastic " + "buffer to %d: card(%d) port(%d)\n", + __func__, hc->chan[hc->dslot].jitter, + HFC_cnt + 1, 1); + } else + hc->chan[hc->dslot].jitter = 2; /* default */ + snprintf(name, MISDN_MAX_IDLEN - 1, "hfc-e1.%d", HFC_cnt + 1); + ret = mISDN_register_device(&dch->dev, name); + if (ret) + goto free_chan; + hc->created[0] = 1; + return ret; +free_chan: + release_port(hc, dch); + return ret; +} + +static int +init_multi_port(struct hfc_multi *hc, int pt) +{ + struct dchannel *dch; + struct bchannel *bch; + int ch, i, ret = 0; + char name[MISDN_MAX_IDLEN]; + + dch = kzalloc(sizeof(struct dchannel), GFP_KERNEL); + if (!dch) + return -ENOMEM; + dch->debug = debug; + mISDN_initdchannel(dch, MAX_DFRAME_LEN_L1, ph_state_change); + dch->hw = hc; + dch->dev.Dprotocols = (1 << ISDN_P_TE_S0) | (1 << ISDN_P_NT_S0); + dch->dev.Bprotocols = (1 << (ISDN_P_B_RAW & ISDN_P_B_MASK)) | + (1 << (ISDN_P_B_HDLC & ISDN_P_B_MASK)); + dch->dev.D.send = handle_dmsg; + dch->dev.D.ctrl = hfcm_dctrl; + dch->dev.nrbchan = 2; + i = pt << 2; + dch->slot = i + 2; + hc->chan[i + 2].dch = dch; + hc->chan[i + 2].port = pt; + hc->chan[i + 2].nt_timer = -1; + for (ch = 0; ch < dch->dev.nrbchan; ch++) { + bch = kzalloc(sizeof(struct bchannel), GFP_KERNEL); + if (!bch) { + printk(KERN_ERR "%s: no memory for bchannel\n", + __func__); + ret = -ENOMEM; + goto free_chan; + } + hc->chan[i + ch].coeff = kzalloc(512, GFP_KERNEL); + if (!hc->chan[i + ch].coeff) { + printk(KERN_ERR "%s: no memory for coeffs\n", + __func__); + ret = -ENOMEM; + goto free_chan; + } + bch->nr = ch + 1; + bch->slot = i + ch; + bch->debug = debug; + mISDN_initbchannel(bch, MAX_DATA_MEM); + bch->hw = hc; + bch->ch.send = handle_bmsg; + bch->ch.ctrl = hfcm_bctrl; + bch->ch.nr = ch + 1; + list_add(&bch->ch.list, &dch->dev.bchannels); + hc->chan[i + ch].bch = bch; + hc->chan[i + ch].port = pt; + test_and_set_bit(bch->nr, &dch->dev.channelmap[0]); + } + /* set master clock */ + if (port[Port_cnt] & 0x001) { + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG + "%s: PROTOCOL set master clock: " + "card(%d) port(%d)\n", + __func__, HFC_cnt + 1, pt + 1); + if (dch->dev.D.protocol != ISDN_P_TE_S0) { + printk(KERN_ERR "Error: Master clock " + "for port(%d) of card(%d) is only" + " possible with TE-mode\n", + pt + 1, HFC_cnt + 1); + ret = -EINVAL; + goto free_chan; + } + if (hc->masterclk >= 0) { + printk(KERN_ERR "Error: Master clock " + "for port(%d) of card(%d) already " + "defined for port(%d)\n", + pt + 1, HFC_cnt + 1, hc->masterclk+1); + ret = -EINVAL; + goto free_chan; + } + hc->masterclk = pt; + } + /* set transmitter line to non capacitive */ + if (port[Port_cnt] & 0x002) { + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG + "%s: PROTOCOL set non capacitive " + "transmitter: card(%d) port(%d)\n", + __func__, HFC_cnt + 1, pt + 1); + test_and_set_bit(HFC_CFG_NONCAP_TX, + &hc->chan[i + 2].cfg); + } + /* disable E-channel */ + if (port[Port_cnt] & 0x004) { + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG + "%s: PROTOCOL disable E-channel: " + "card(%d) port(%d)\n", + __func__, HFC_cnt + 1, pt + 1); + test_and_set_bit(HFC_CFG_DIS_ECHANNEL, + &hc->chan[i + 2].cfg); + } + snprintf(name, MISDN_MAX_IDLEN - 1, "hfc-%ds.%d/%d", + hc->type, HFC_cnt + 1, pt + 1); + ret = mISDN_register_device(&dch->dev, name); + if (ret) + goto free_chan; + hc->created[pt] = 1; + return ret; +free_chan: + release_port(hc, dch); + return ret; +} + +static int +hfcmulti_init(struct pci_dev *pdev, const struct pci_device_id *ent) +{ + struct hm_map *m = (struct hm_map *)ent->driver_data; + int ret_err = 0; + int pt; + struct hfc_multi *hc; + u_long flags; + u_char dips = 0, pmj = 0; /* dip settings, port mode Jumpers */ + + if (HFC_cnt >= MAX_CARDS) { + printk(KERN_ERR "too many cards (max=%d).\n", + MAX_CARDS); + return -EINVAL; + } + if ((type[HFC_cnt] & 0xff) && (type[HFC_cnt] & 0xff) != m->type) { + printk(KERN_WARNING "HFC-MULTI: Card '%s:%s' type %d found but " + "type[%d] %d was supplied as module parameter\n", + m->vendor_name, m->card_name, m->type, HFC_cnt, + type[HFC_cnt] & 0xff); + printk(KERN_WARNING "HFC-MULTI: Load module without parameters " + "first, to see cards and their types."); + return -EINVAL; + } + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG "%s: Registering %s:%s chip type %d (0x%x)\n", + __func__, m->vendor_name, m->card_name, m->type, + type[HFC_cnt]); + + /* allocate card+fifo structure */ + hc = kzalloc(sizeof(struct hfc_multi), GFP_KERNEL); + if (!hc) { + printk(KERN_ERR "No kmem for HFC-Multi card\n"); + return -ENOMEM; + } + spin_lock_init(&hc->lock); + hc->mtyp = m; + hc->type = m->type; + hc->ports = m->ports; + hc->id = HFC_cnt; + hc->pcm = pcm[HFC_cnt]; + hc->io_mode = iomode[HFC_cnt]; + if (dslot[HFC_cnt] < 0) { + hc->dslot = 0; + printk(KERN_INFO "HFC-E1 card has disabled D-channel, but " + "31 B-channels\n"); + } if (dslot[HFC_cnt] > 0 && dslot[HFC_cnt] < 32) { + hc->dslot = dslot[HFC_cnt]; + printk(KERN_INFO "HFC-E1 card has alternating D-channel on " + "time slot %d\n", dslot[HFC_cnt]); + } else + hc->dslot = 16; + + /* set chip specific features */ + hc->masterclk = -1; + if (type[HFC_cnt] & 0x100) { + test_and_set_bit(HFC_CHIP_ULAW, &hc->chip); + silence = 0xff; /* ulaw silence */ + } else + silence = 0x2a; /* alaw silence */ + if (!(type[HFC_cnt] & 0x200)) + test_and_set_bit(HFC_CHIP_DTMF, &hc->chip); + + if (type[HFC_cnt] & 0x800) + test_and_set_bit(HFC_CHIP_PCM_SLAVE, &hc->chip); + if (type[HFC_cnt] & 0x1000) { + test_and_set_bit(HFC_CHIP_PCM_MASTER, &hc->chip); + test_and_clear_bit(HFC_CHIP_PCM_SLAVE, &hc->chip); + } + if (type[HFC_cnt] & 0x4000) + test_and_set_bit(HFC_CHIP_EXRAM_128, &hc->chip); + if (type[HFC_cnt] & 0x8000) + test_and_set_bit(HFC_CHIP_EXRAM_512, &hc->chip); + hc->slots = 32; + if (type[HFC_cnt] & 0x10000) + hc->slots = 64; + if (type[HFC_cnt] & 0x20000) + hc->slots = 128; + if (type[HFC_cnt] & 0x80000) { + test_and_set_bit(HFC_CHIP_WATCHDOG, &hc->chip); + hc->wdcount = 0; + hc->wdbyte = V_GPIO_OUT2; + printk(KERN_NOTICE "Watchdog enabled\n"); + } + + /* setup pci, hc->slots may change due to PLXSD */ + ret_err = setup_pci(hc, pdev, ent); + if (ret_err) { + if (hc == syncmaster) + syncmaster = NULL; + kfree(hc); + return ret_err; + } + + /* crate channels */ + for (pt = 0; pt < hc->ports; pt++) { + if (Port_cnt >= MAX_PORTS) { + printk(KERN_ERR "too many ports (max=%d).\n", + MAX_PORTS); + ret_err = -EINVAL; + goto free_card; + } + if (hc->type == 1) + ret_err = init_e1_port(hc, m); + else + ret_err = init_multi_port(hc, pt); + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG + "%s: Registering D-channel, card(%d) port(%d)" + "result %d\n", + __func__, HFC_cnt + 1, pt, ret_err); + + if (ret_err) { + while (pt) { /* release already registered ports */ + pt--; + release_port(hc, hc->chan[(pt << 2) + 2].dch); + } + goto free_card; + } + Port_cnt++; + } + + /* disp switches */ + switch (m->dip_type) { + case DIP_4S: + /* + * get DIP Setting for beroNet 1S/2S/4S cards + * check if Port Jumper config matches + * module param 'protocol' + * DIP Setting: (collect GPIO 13/14/15 (R_GPIO_IN1) + + * GPI 19/23 (R_GPI_IN2)) + */ + dips = ((~HFC_inb(hc, R_GPIO_IN1) & 0xE0) >> 5) | + ((~HFC_inb(hc, R_GPI_IN2) & 0x80) >> 3) | + (~HFC_inb(hc, R_GPI_IN2) & 0x08); + + /* Port mode (TE/NT) jumpers */ + pmj = ((HFC_inb(hc, R_GPI_IN3) >> 4) & 0xf); + + if (test_bit(HFC_CHIP_B410P, &hc->chip)) + pmj = ~pmj & 0xf; + + printk(KERN_INFO "%s: %s DIPs(0x%x) jumpers(0x%x)\n", + m->vendor_name, m->card_name, dips, pmj); + break; + case DIP_8S: + /* + * get DIP Setting for beroNet 8S0+ cards + * + * enable PCI auxbridge function + */ + HFC_outb(hc, R_BRG_PCM_CFG, 1 | V_PCM_CLK); + /* prepare access to auxport */ + outw(0x4000, hc->pci_iobase + 4); + /* + * some dummy reads are required to + * read valid DIP switch data + */ + dips = inb(hc->pci_iobase); + dips = inb(hc->pci_iobase); + dips = inb(hc->pci_iobase); + dips = ~inb(hc->pci_iobase) & 0x3F; + outw(0x0, hc->pci_iobase + 4); + /* disable PCI auxbridge function */ + HFC_outb(hc, R_BRG_PCM_CFG, V_PCM_CLK); + printk(KERN_INFO "%s: %s DIPs(0x%x)\n", + m->vendor_name, m->card_name, dips); + break; + case DIP_E1: + /* + * get DIP Setting for beroNet E1 cards + * DIP Setting: collect GPI 4/5/6/7 (R_GPI_IN0) + */ + dips = (~HFC_inb(hc, R_GPI_IN0) & 0xF0)>>4; + printk(KERN_INFO "%s: %s DIPs(0x%x)\n", + m->vendor_name, m->card_name, dips); + break; + } + + /* add to list */ + spin_lock_irqsave(&HFClock, flags); + list_add_tail(&hc->list, &HFClist); + spin_unlock_irqrestore(&HFClock, flags); + + /* initialize hardware */ + ret_err = init_card(hc); + if (ret_err) { + printk(KERN_ERR "init card returns %d\n", ret_err); + release_card(hc); + return ret_err; + } + + /* start IRQ and return */ + spin_lock_irqsave(&hc->lock, flags); + enable_hwirq(hc); + spin_unlock_irqrestore(&hc->lock, flags); + return 0; + +free_card: + release_io_hfcmulti(hc); + if (hc == syncmaster) + syncmaster = NULL; + kfree(hc); + return ret_err; +} + +static void __devexit hfc_remove_pci(struct pci_dev *pdev) +{ + struct hfc_multi *card = pci_get_drvdata(pdev); + u_long flags; + + if (debug) + printk(KERN_INFO "removing hfc_multi card vendor:%x " + "device:%x subvendor:%x subdevice:%x\n", + pdev->vendor, pdev->device, + pdev->subsystem_vendor, pdev->subsystem_device); + + if (card) { + spin_lock_irqsave(&HFClock, flags); + release_card(card); + spin_unlock_irqrestore(&HFClock, flags); + } else { + if (debug) + printk(KERN_WARNING "%s: drvdata allready removed\n", + __func__); + } +} + +#define VENDOR_CCD "Cologne Chip AG" +#define VENDOR_BN "beroNet GmbH" +#define VENDOR_DIG "Digium Inc." +#define VENDOR_JH "Junghanns.NET GmbH" +#define VENDOR_PRIM "PrimuX" + +static const struct hm_map hfcm_map[] = { +/*0*/ {VENDOR_BN, "HFC-1S Card (mini PCI)", 4, 1, 1, 3, 0, DIP_4S, 0}, +/*1*/ {VENDOR_BN, "HFC-2S Card", 4, 2, 1, 3, 0, DIP_4S}, +/*2*/ {VENDOR_BN, "HFC-2S Card (mini PCI)", 4, 2, 1, 3, 0, DIP_4S, 0}, +/*3*/ {VENDOR_BN, "HFC-4S Card", 4, 4, 1, 2, 0, DIP_4S, 0}, +/*4*/ {VENDOR_BN, "HFC-4S Card (mini PCI)", 4, 4, 1, 2, 0, 0, 0}, +/*5*/ {VENDOR_CCD, "HFC-4S Eval (old)", 4, 4, 0, 0, 0, 0, 0}, +/*6*/ {VENDOR_CCD, "HFC-4S IOB4ST", 4, 4, 1, 2, 0, 0, 0}, +/*7*/ {VENDOR_CCD, "HFC-4S", 4, 4, 1, 2, 0, 0, 0}, +/*8*/ {VENDOR_DIG, "HFC-4S Card", 4, 4, 0, 2, 0, 0, HFC_IO_MODE_REGIO}, +/*9*/ {VENDOR_CCD, "HFC-4S Swyx 4xS0 SX2 QuadBri", 4, 4, 1, 2, 0, 0, 0}, +/*10*/ {VENDOR_JH, "HFC-4S (junghanns 2.0)", 4, 4, 1, 2, 0, 0, 0}, +/*11*/ {VENDOR_PRIM, "HFC-2S Primux Card", 4, 2, 0, 0, 0, 0, 0}, + +/*12*/ {VENDOR_BN, "HFC-8S Card", 8, 8, 1, 0, 0, 0, 0}, +/*13*/ {VENDOR_BN, "HFC-8S Card (+)", 8, 8, 1, 8, 0, DIP_8S, + HFC_IO_MODE_REGIO}, +/*14*/ {VENDOR_CCD, "HFC-8S Eval (old)", 8, 8, 0, 0, 0, 0, 0}, +/*15*/ {VENDOR_CCD, "HFC-8S IOB4ST Recording", 8, 8, 1, 0, 0, 0, 0}, + +/*16*/ {VENDOR_CCD, "HFC-8S IOB8ST", 8, 8, 1, 0, 0, 0, 0}, +/*17*/ {VENDOR_CCD, "HFC-8S", 8, 8, 1, 0, 0, 0, 0}, +/*18*/ {VENDOR_CCD, "HFC-8S", 8, 8, 1, 0, 0, 0, 0}, + +/*19*/ {VENDOR_BN, "HFC-E1 Card", 1, 1, 0, 1, 0, DIP_E1, 0}, +/*20*/ {VENDOR_BN, "HFC-E1 Card (mini PCI)", 1, 1, 0, 1, 0, 0, 0}, +/*21*/ {VENDOR_BN, "HFC-E1+ Card (Dual)", 1, 1, 0, 1, 0, DIP_E1, 0}, +/*22*/ {VENDOR_BN, "HFC-E1 Card (Dual)", 1, 1, 0, 1, 0, DIP_E1, 0}, + +/*23*/ {VENDOR_CCD, "HFC-E1 Eval (old)", 1, 1, 0, 0, 0, 0, 0}, +/*24*/ {VENDOR_CCD, "HFC-E1 IOB1E1", 1, 1, 0, 1, 0, 0, 0}, +/*25*/ {VENDOR_CCD, "HFC-E1", 1, 1, 0, 1, 0, 0, 0}, + +/*26*/ {VENDOR_CCD, "HFC-4S Speech Design", 4, 4, 0, 0, 0, 0, + HFC_IO_MODE_PLXSD}, +/*27*/ {VENDOR_CCD, "HFC-E1 Speech Design", 1, 1, 0, 0, 0, 0, + HFC_IO_MODE_PLXSD}, +/*28*/ {VENDOR_CCD, "HFC-4S OpenVox", 4, 4, 1, 0, 0, 0, 0}, +/*29*/ {VENDOR_CCD, "HFC-2S OpenVox", 4, 2, 1, 0, 0, 0, 0}, +/*30*/ {VENDOR_CCD, "HFC-8S OpenVox", 8, 8, 1, 0, 0, 0, 0}, +}; + +#undef H +#define H(x) ((unsigned long)&hfcm_map[x]) +static struct pci_device_id hfmultipci_ids[] __devinitdata = { + + /* Cards with HFC-4S Chip */ + { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC4S, PCI_VENDOR_ID_CCD, + PCI_SUBDEVICE_ID_CCD_BN1SM, 0, 0, H(0)}, /* BN1S mini PCI */ + { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC4S, PCI_VENDOR_ID_CCD, + PCI_SUBDEVICE_ID_CCD_BN2S, 0, 0, H(1)}, /* BN2S */ + { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC4S, PCI_VENDOR_ID_CCD, + PCI_SUBDEVICE_ID_CCD_BN2SM, 0, 0, H(2)}, /* BN2S mini PCI */ + { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC4S, PCI_VENDOR_ID_CCD, + PCI_SUBDEVICE_ID_CCD_BN4S, 0, 0, H(3)}, /* BN4S */ + { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC4S, PCI_VENDOR_ID_CCD, + PCI_SUBDEVICE_ID_CCD_BN4SM, 0, 0, H(4)}, /* BN4S mini PCI */ + { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC4S, PCI_VENDOR_ID_CCD, + PCI_DEVICE_ID_CCD_HFC4S, 0, 0, H(5)}, /* Old Eval */ + { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC4S, PCI_VENDOR_ID_CCD, + PCI_SUBDEVICE_ID_CCD_IOB4ST, 0, 0, H(6)}, /* IOB4ST */ + { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC4S, PCI_VENDOR_ID_CCD, + PCI_SUBDEVICE_ID_CCD_HFC4S, 0, 0, H(7)}, /* 4S */ + { PCI_VENDOR_ID_DIGIUM, PCI_DEVICE_ID_DIGIUM_HFC4S, + PCI_VENDOR_ID_DIGIUM, PCI_DEVICE_ID_DIGIUM_HFC4S, 0, 0, H(8)}, + { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC4S, PCI_VENDOR_ID_CCD, + PCI_SUBDEVICE_ID_CCD_SWYX4S, 0, 0, H(9)}, /* 4S Swyx */ + { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC4S, PCI_VENDOR_ID_CCD, + PCI_SUBDEVICE_ID_CCD_JH4S20, 0, 0, H(10)}, + { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC4S, PCI_VENDOR_ID_CCD, + PCI_SUBDEVICE_ID_CCD_PMX2S, 0, 0, H(11)}, /* Primux */ + { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC4S, PCI_VENDOR_ID_CCD, + PCI_SUBDEVICE_ID_CCD_OV4S, 0, 0, H(28)}, /* OpenVox 4 */ + { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC4S, PCI_VENDOR_ID_CCD, + PCI_SUBDEVICE_ID_CCD_OV2S, 0, 0, H(29)}, /* OpenVox 2 */ + + /* Cards with HFC-8S Chip */ + { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC8S, PCI_VENDOR_ID_CCD, + PCI_SUBDEVICE_ID_CCD_BN8S, 0, 0, H(12)}, /* BN8S */ + { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC8S, PCI_VENDOR_ID_CCD, + PCI_SUBDEVICE_ID_CCD_BN8SP, 0, 0, H(13)}, /* BN8S+ */ + { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC8S, PCI_VENDOR_ID_CCD, + PCI_DEVICE_ID_CCD_HFC8S, 0, 0, H(14)}, /* old Eval */ + { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC8S, PCI_VENDOR_ID_CCD, + PCI_SUBDEVICE_ID_CCD_IOB8STR, 0, 0, H(15)}, + /* IOB8ST Recording */ + { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC8S, PCI_VENDOR_ID_CCD, + PCI_SUBDEVICE_ID_CCD_IOB8ST, 0, 0, H(16)}, /* IOB8ST */ + { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC8S, PCI_VENDOR_ID_CCD, + PCI_SUBDEVICE_ID_CCD_IOB8ST_1, 0, 0, H(17)}, /* IOB8ST */ + { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC8S, PCI_VENDOR_ID_CCD, + PCI_SUBDEVICE_ID_CCD_HFC8S, 0, 0, H(18)}, /* 8S */ + { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC8S, PCI_VENDOR_ID_CCD, + PCI_SUBDEVICE_ID_CCD_OV8S, 0, 0, H(30)}, /* OpenVox 8 */ + + + /* Cards with HFC-E1 Chip */ + { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFCE1, PCI_VENDOR_ID_CCD, + PCI_SUBDEVICE_ID_CCD_BNE1, 0, 0, H(19)}, /* BNE1 */ + { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFCE1, PCI_VENDOR_ID_CCD, + PCI_SUBDEVICE_ID_CCD_BNE1M, 0, 0, H(20)}, /* BNE1 mini PCI */ + { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFCE1, PCI_VENDOR_ID_CCD, + PCI_SUBDEVICE_ID_CCD_BNE1DP, 0, 0, H(21)}, /* BNE1 + (Dual) */ + { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFCE1, PCI_VENDOR_ID_CCD, + PCI_SUBDEVICE_ID_CCD_BNE1D, 0, 0, H(22)}, /* BNE1 (Dual) */ + + { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFCE1, PCI_VENDOR_ID_CCD, + PCI_DEVICE_ID_CCD_HFCE1, 0, 0, H(23)}, /* Old Eval */ + { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFCE1, PCI_VENDOR_ID_CCD, + PCI_SUBDEVICE_ID_CCD_IOB1E1, 0, 0, H(24)}, /* IOB1E1 */ + { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFCE1, PCI_VENDOR_ID_CCD, + PCI_SUBDEVICE_ID_CCD_HFCE1, 0, 0, H(25)}, /* E1 */ + + { PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9030, PCI_VENDOR_ID_CCD, + PCI_SUBDEVICE_ID_CCD_SPD4S, 0, 0, H(26)}, /* PLX PCI Bridge */ + { PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9030, PCI_VENDOR_ID_CCD, + PCI_SUBDEVICE_ID_CCD_SPDE1, 0, 0, H(27)}, /* PLX PCI Bridge */ + { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC4S, PCI_ANY_ID, PCI_ANY_ID, + 0, 0, 0}, + { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFC8S, PCI_ANY_ID, PCI_ANY_ID, + 0, 0, 0}, + { PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_HFCE1, PCI_ANY_ID, PCI_ANY_ID, + 0, 0, 0}, + {0, } +}; +#undef H + +MODULE_DEVICE_TABLE(pci, hfmultipci_ids); + +static int +hfcmulti_probe(struct pci_dev *pdev, const struct pci_device_id *ent) +{ + struct hm_map *m = (struct hm_map *)ent->driver_data; + int ret; + + if (m == NULL) { + if (ent->vendor == PCI_VENDOR_ID_CCD) + if (ent->device == PCI_DEVICE_ID_CCD_HFC4S || + ent->device == PCI_DEVICE_ID_CCD_HFC8S || + ent->device == PCI_DEVICE_ID_CCD_HFCE1) + printk(KERN_ERR + "unknown HFC multiport controller " + "(vendor:%x device:%x subvendor:%x " + "subdevice:%x) Please contact the " + "driver maintainer for support.\n", + ent->vendor, ent->device, + ent->subvendor, ent->subdevice); + return -ENODEV; + } + ret = hfcmulti_init(pdev, ent); + if (ret) + return ret; + HFC_cnt++; + printk(KERN_INFO "%d devices registered\n", HFC_cnt); + return 0; +} + +static struct pci_driver hfcmultipci_driver = { + .name = "hfc_multi", + .probe = hfcmulti_probe, + .remove = __devexit_p(hfc_remove_pci), + .id_table = hfmultipci_ids, +}; + +static void __exit +HFCmulti_cleanup(void) +{ + struct hfc_multi *card, *next; + + /* unload interrupt function symbol */ + if (hfc_interrupt) + symbol_put(ztdummy_extern_interrupt); + if (register_interrupt) + symbol_put(ztdummy_register_interrupt); + if (unregister_interrupt) { + if (interrupt_registered) { + interrupt_registered = 0; + unregister_interrupt(); + } + symbol_put(ztdummy_unregister_interrupt); + } + + list_for_each_entry_safe(card, next, &HFClist, list) + release_card(card); + /* get rid of all devices of this driver */ + pci_unregister_driver(&hfcmultipci_driver); +} + +static int __init +HFCmulti_init(void) +{ + int err; + +#ifdef IRQ_DEBUG + printk(KERN_ERR "%s: IRQ_DEBUG IS ENABLED!\n", __func__); +#endif + + spin_lock_init(&HFClock); + spin_lock_init(&plx_lock); + + if (debug & DEBUG_HFCMULTI_INIT) + printk(KERN_DEBUG "%s: init entered\n", __func__); + +#ifdef __BIG_ENDIAN +#error "not running on big endian machines now" +#endif + hfc_interrupt = symbol_get(ztdummy_extern_interrupt); + register_interrupt = symbol_get(ztdummy_register_interrupt); + unregister_interrupt = symbol_get(ztdummy_unregister_interrupt); + printk(KERN_INFO "mISDN: HFC-multi driver %s\n", + hfcmulti_revision); + + switch (poll) { + case 0: + poll_timer = 6; + poll = 128; + break; + /* + * wenn dieses break nochmal verschwindet, + * gibt es heisse ohren :-) + * "without the break you will get hot ears ???" + */ + case 8: + poll_timer = 2; + break; + case 16: + poll_timer = 3; + break; + case 32: + poll_timer = 4; + break; + case 64: + poll_timer = 5; + break; + case 128: + poll_timer = 6; + break; + case 256: + poll_timer = 7; + break; + default: + printk(KERN_ERR + "%s: Wrong poll value (%d).\n", __func__, poll); + err = -EINVAL; + return err; + + } + + err = pci_register_driver(&hfcmultipci_driver); + if (err < 0) { + printk(KERN_ERR "error registering pci driver: %x\n", err); + if (hfc_interrupt) + symbol_put(ztdummy_extern_interrupt); + if (register_interrupt) + symbol_put(ztdummy_register_interrupt); + if (unregister_interrupt) { + if (interrupt_registered) { + interrupt_registered = 0; + unregister_interrupt(); + } + symbol_put(ztdummy_unregister_interrupt); + } + return err; + } + return 0; +} + + +module_init(HFCmulti_init); +module_exit(HFCmulti_cleanup); diff --git a/drivers/isdn/hardware/mISDN/hfcpci.c b/drivers/isdn/hardware/mISDN/hfcpci.c new file mode 100644 index 0000000..9179685 --- /dev/null +++ b/drivers/isdn/hardware/mISDN/hfcpci.c @@ -0,0 +1,2256 @@ +/* + * + * hfcpci.c low level driver for CCD's hfc-pci based cards + * + * Author Werner Cornelius (werner@isdn4linux.de) + * based on existing driver for CCD hfc ISA cards + * type approval valid for HFC-S PCI A based card + * + * Copyright 1999 by Werner Cornelius (werner@isdn-development.de) + * Copyright 2008 by Karsten Keil <kkeil@novell.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/delay.h> +#include <linux/mISDNhw.h> + +#include "hfc_pci.h" + +static const char *hfcpci_revision = "2.0"; + +#define MAX_CARDS 8 +static int HFC_cnt; +static uint debug; + +MODULE_AUTHOR("Karsten Keil"); +MODULE_LICENSE("GPL"); +module_param(debug, uint, 0); + +static LIST_HEAD(HFClist); +DEFINE_RWLOCK(HFClock); + +enum { + HFC_CCD_2BD0, + HFC_CCD_B000, + HFC_CCD_B006, + HFC_CCD_B007, + HFC_CCD_B008, + HFC_CCD_B009, + HFC_CCD_B00A, + HFC_CCD_B00B, + HFC_CCD_B00C, + HFC_CCD_B100, + HFC_CCD_B700, + HFC_CCD_B701, + HFC_ASUS_0675, + HFC_BERKOM_A1T, + HFC_BERKOM_TCONCEPT, + HFC_ANIGMA_MC145575, + HFC_ZOLTRIX_2BD0, + HFC_DIGI_DF_M_IOM2_E, + HFC_DIGI_DF_M_E, + HFC_DIGI_DF_M_IOM2_A, + HFC_DIGI_DF_M_A, + HFC_ABOCOM_2BD1, + HFC_SITECOM_DC105V2, +}; + +struct hfcPCI_hw { + unsigned char cirm; + unsigned char ctmt; + unsigned char clkdel; + unsigned char states; + unsigned char conn; + unsigned char mst_m; + unsigned char int_m1; + unsigned char int_m2; + unsigned char sctrl; + unsigned char sctrl_r; + unsigned char sctrl_e; + unsigned char trm; + unsigned char fifo_en; + unsigned char bswapped; + unsigned char protocol; + int nt_timer; + unsigned char *pci_io; /* start of PCI IO memory */ + dma_addr_t dmahandle; + void *fifos; /* FIFO memory */ + int last_bfifo_cnt[2]; + /* marker saving last b-fifo frame count */ + struct timer_list timer; +}; + +#define HFC_CFG_MASTER 1 +#define HFC_CFG_SLAVE 2 +#define HFC_CFG_PCM 3 +#define HFC_CFG_2HFC 4 +#define HFC_CFG_SLAVEHFC 5 +#define HFC_CFG_NEG_F0 6 +#define HFC_CFG_SW_DD_DU 7 + +#define FLG_HFC_TIMER_T1 16 +#define FLG_HFC_TIMER_T3 17 + +#define NT_T1_COUNT 1120 /* number of 3.125ms interrupts (3.5s) */ +#define NT_T3_COUNT 31 /* number of 3.125ms interrupts (97 ms) */ +#define CLKDEL_TE 0x0e /* CLKDEL in TE mode */ +#define CLKDEL_NT 0x6c /* CLKDEL in NT mode */ + + +struct hfc_pci { + struct list_head list; + u_char subtype; + u_char chanlimit; + u_char initdone; + u_long cfg; + u_int irq; + u_int irqcnt; + struct pci_dev *pdev; + struct hfcPCI_hw hw; + spinlock_t lock; /* card lock */ + struct dchannel dch; + struct bchannel bch[2]; +}; + +/* Interface functions */ +static void +enable_hwirq(struct hfc_pci *hc) +{ + hc->hw.int_m2 |= HFCPCI_IRQ_ENABLE; + Write_hfc(hc, HFCPCI_INT_M2, hc->hw.int_m2); +} + +static void +disable_hwirq(struct hfc_pci *hc) +{ + hc->hw.int_m2 &= ~((u_char)HFCPCI_IRQ_ENABLE); + Write_hfc(hc, HFCPCI_INT_M2, hc->hw.int_m2); +} + +/* + * free hardware resources used by driver + */ +static void +release_io_hfcpci(struct hfc_pci *hc) +{ + /* disable memory mapped ports + busmaster */ + pci_write_config_word(hc->pdev, PCI_COMMAND, 0); + del_timer(&hc->hw.timer); + pci_free_consistent(hc->pdev, 0x8000, hc->hw.fifos, hc->hw.dmahandle); + iounmap((void *)hc->hw.pci_io); +} + +/* + * set mode (NT or TE) + */ +static void +hfcpci_setmode(struct hfc_pci *hc) +{ + if (hc->hw.protocol == ISDN_P_NT_S0) { + hc->hw.clkdel = CLKDEL_NT; /* ST-Bit delay for NT-Mode */ + hc->hw.sctrl |= SCTRL_MODE_NT; /* NT-MODE */ + hc->hw.states = 1; /* G1 */ + } else { + hc->hw.clkdel = CLKDEL_TE; /* ST-Bit delay for TE-Mode */ + hc->hw.sctrl &= ~SCTRL_MODE_NT; /* TE-MODE */ + hc->hw.states = 2; /* F2 */ + } + Write_hfc(hc, HFCPCI_CLKDEL, hc->hw.clkdel); + Write_hfc(hc, HFCPCI_STATES, HFCPCI_LOAD_STATE | hc->hw.states); + udelay(10); + Write_hfc(hc, HFCPCI_STATES, hc->hw.states | 0x40); /* Deactivate */ + Write_hfc(hc, HFCPCI_SCTRL, hc->hw.sctrl); +} + +/* + * function called to reset the HFC PCI chip. A complete software reset of chip + * and fifos is done. + */ +static void +reset_hfcpci(struct hfc_pci *hc) +{ + u_char val; + int cnt = 0; + + printk(KERN_DEBUG "reset_hfcpci: entered\n"); + val = Read_hfc(hc, HFCPCI_CHIP_ID); + printk(KERN_INFO "HFC_PCI: resetting HFC ChipId(%x)\n", val); + /* enable memory mapped ports, disable busmaster */ + pci_write_config_word(hc->pdev, PCI_COMMAND, PCI_ENA_MEMIO); + disable_hwirq(hc); + /* enable memory ports + busmaster */ + pci_write_config_word(hc->pdev, PCI_COMMAND, + PCI_ENA_MEMIO + PCI_ENA_MASTER); + val = Read_hfc(hc, HFCPCI_STATUS); + printk(KERN_DEBUG "HFC-PCI status(%x) before reset\n", val); + hc->hw.cirm = HFCPCI_RESET; /* Reset On */ + Write_hfc(hc, HFCPCI_CIRM, hc->hw.cirm); + set_current_state(TASK_UNINTERRUPTIBLE); + mdelay(10); /* Timeout 10ms */ + hc->hw.cirm = 0; /* Reset Off */ + Write_hfc(hc, HFCPCI_CIRM, hc->hw.cirm); + val = Read_hfc(hc, HFCPCI_STATUS); + printk(KERN_DEBUG "HFC-PCI status(%x) after reset\n", val); + while (cnt < 50000) { /* max 50000 us */ + udelay(5); + cnt += 5; + val = Read_hfc(hc, HFCPCI_STATUS); + if (!(val & 2)) + break; + } + printk(KERN_DEBUG "HFC-PCI status(%x) after %dus\n", val, cnt); + + hc->hw.fifo_en = 0x30; /* only D fifos enabled */ + + hc->hw.bswapped = 0; /* no exchange */ + hc->hw.ctmt = HFCPCI_TIM3_125 | HFCPCI_AUTO_TIMER; + hc->hw.trm = HFCPCI_BTRANS_THRESMASK; /* no echo connect , threshold */ + hc->hw.sctrl = 0x40; /* set tx_lo mode, error in datasheet ! */ + hc->hw.sctrl_r = 0; + hc->hw.sctrl_e = HFCPCI_AUTO_AWAKE; /* S/T Auto awake */ + hc->hw.mst_m = 0; + if (test_bit(HFC_CFG_MASTER, &hc->cfg)) + hc->hw.mst_m |= HFCPCI_MASTER; /* HFC Master Mode */ + if (test_bit(HFC_CFG_NEG_F0, &hc->cfg)) + hc->hw.mst_m |= HFCPCI_F0_NEGATIV; + Write_hfc(hc, HFCPCI_FIFO_EN, hc->hw.fifo_en); + Write_hfc(hc, HFCPCI_TRM, hc->hw.trm); + Write_hfc(hc, HFCPCI_SCTRL_E, hc->hw.sctrl_e); + Write_hfc(hc, HFCPCI_CTMT, hc->hw.ctmt); + + hc->hw.int_m1 = HFCPCI_INTS_DTRANS | HFCPCI_INTS_DREC | + HFCPCI_INTS_L1STATE | HFCPCI_INTS_TIMER; + Write_hfc(hc, HFCPCI_INT_M1, hc->hw.int_m1); + + /* Clear already pending ints */ + if (Read_hfc(hc, HFCPCI_INT_S1)); + + /* set NT/TE mode */ + hfcpci_setmode(hc); + + Write_hfc(hc, HFCPCI_MST_MODE, hc->hw.mst_m); + Write_hfc(hc, HFCPCI_SCTRL_R, hc->hw.sctrl_r); + + /* + * Init GCI/IOM2 in master mode + * Slots 0 and 1 are set for B-chan 1 and 2 + * D- and monitor/CI channel are not enabled + * STIO1 is used as output for data, B1+B2 from ST->IOM+HFC + * STIO2 is used as data input, B1+B2 from IOM->ST + * ST B-channel send disabled -> continous 1s + * The IOM slots are always enabled + */ + if (test_bit(HFC_CFG_PCM, &hc->cfg)) { + /* set data flow directions: connect B1,B2: HFC to/from PCM */ + hc->hw.conn = 0x09; + } else { + hc->hw.conn = 0x36; /* set data flow directions */ + if (test_bit(HFC_CFG_SW_DD_DU, &hc->cfg)) { + Write_hfc(hc, HFCPCI_B1_SSL, 0xC0); + Write_hfc(hc, HFCPCI_B2_SSL, 0xC1); + Write_hfc(hc, HFCPCI_B1_RSL, 0xC0); + Write_hfc(hc, HFCPCI_B2_RSL, 0xC1); + } else { + Write_hfc(hc, HFCPCI_B1_SSL, 0x80); + Write_hfc(hc, HFCPCI_B2_SSL, 0x81); + Write_hfc(hc, HFCPCI_B1_RSL, 0x80); + Write_hfc(hc, HFCPCI_B2_RSL, 0x81); + } + } + Write_hfc(hc, HFCPCI_CONNECT, hc->hw.conn); + val = Read_hfc(hc, HFCPCI_INT_S2); +} + +/* + * Timer function called when kernel timer expires + */ +static void +hfcpci_Timer(struct hfc_pci *hc) +{ + hc->hw.timer.expires = jiffies + 75; + /* WD RESET */ +/* + * WriteReg(hc, HFCD_DATA, HFCD_CTMT, hc->hw.ctmt | 0x80); + * add_timer(&hc->hw.timer); + */ +} + + +/* + * select a b-channel entry matching and active + */ +static struct bchannel * +Sel_BCS(struct hfc_pci *hc, int channel) +{ + if (test_bit(FLG_ACTIVE, &hc->bch[0].Flags) && + (hc->bch[0].nr & channel)) + return &hc->bch[0]; + else if (test_bit(FLG_ACTIVE, &hc->bch[1].Flags) && + (hc->bch[1].nr & channel)) + return &hc->bch[1]; + else + return NULL; +} + +/* + * clear the desired B-channel rx fifo + */ +static void +hfcpci_clear_fifo_rx(struct hfc_pci *hc, int fifo) +{ + u_char fifo_state; + struct bzfifo *bzr; + + if (fifo) { + bzr = &((union fifo_area *)(hc->hw.fifos))->b_chans.rxbz_b2; + fifo_state = hc->hw.fifo_en & HFCPCI_FIFOEN_B2RX; + } else { + bzr = &((union fifo_area *)(hc->hw.fifos))->b_chans.rxbz_b1; + fifo_state = hc->hw.fifo_en & HFCPCI_FIFOEN_B1RX; + } + if (fifo_state) + hc->hw.fifo_en ^= fifo_state; + Write_hfc(hc, HFCPCI_FIFO_EN, hc->hw.fifo_en); + hc->hw.last_bfifo_cnt[fifo] = 0; + bzr->f1 = MAX_B_FRAMES; + bzr->f2 = bzr->f1; /* init F pointers to remain constant */ + bzr->za[MAX_B_FRAMES].z1 = cpu_to_le16(B_FIFO_SIZE + B_SUB_VAL - 1); + bzr->za[MAX_B_FRAMES].z2 = cpu_to_le16( + le16_to_cpu(bzr->za[MAX_B_FRAMES].z1)); + if (fifo_state) + hc->hw.fifo_en |= fifo_state; + Write_hfc(hc, HFCPCI_FIFO_EN, hc->hw.fifo_en); +} + +/* + * clear the desired B-channel tx fifo + */ +static void hfcpci_clear_fifo_tx(struct hfc_pci *hc, int fifo) +{ + u_char fifo_state; + struct bzfifo *bzt; + + if (fifo) { + bzt = &((union fifo_area *)(hc->hw.fifos))->b_chans.txbz_b2; + fifo_state = hc->hw.fifo_en & HFCPCI_FIFOEN_B2TX; + } else { + bzt = &((union fifo_area *)(hc->hw.fifos))->b_chans.txbz_b1; + fifo_state = hc->hw.fifo_en & HFCPCI_FIFOEN_B1TX; + } + if (fifo_state) + hc->hw.fifo_en ^= fifo_state; + Write_hfc(hc, HFCPCI_FIFO_EN, hc->hw.fifo_en); + if (hc->bch[fifo].debug & DEBUG_HW_BCHANNEL) + printk(KERN_DEBUG "hfcpci_clear_fifo_tx%d f1(%x) f2(%x) " + "z1(%x) z2(%x) state(%x)\n", + fifo, bzt->f1, bzt->f2, + le16_to_cpu(bzt->za[MAX_B_FRAMES].z1), + le16_to_cpu(bzt->za[MAX_B_FRAMES].z2), + fifo_state); + bzt->f2 = MAX_B_FRAMES; + bzt->f1 = bzt->f2; /* init F pointers to remain constant */ + bzt->za[MAX_B_FRAMES].z1 = cpu_to_le16(B_FIFO_SIZE + B_SUB_VAL - 1); + bzt->za[MAX_B_FRAMES].z2 = cpu_to_le16( + le16_to_cpu(bzt->za[MAX_B_FRAMES].z1 - 1)); + if (fifo_state) + hc->hw.fifo_en |= fifo_state; + Write_hfc(hc, HFCPCI_FIFO_EN, hc->hw.fifo_en); + if (hc->bch[fifo].debug & DEBUG_HW_BCHANNEL) + printk(KERN_DEBUG + "hfcpci_clear_fifo_tx%d f1(%x) f2(%x) z1(%x) z2(%x)\n", + fifo, bzt->f1, bzt->f2, + le16_to_cpu(bzt->za[MAX_B_FRAMES].z1), + le16_to_cpu(bzt->za[MAX_B_FRAMES].z2)); +} + +/* + * read a complete B-frame out of the buffer + */ +static void +hfcpci_empty_bfifo(struct bchannel *bch, struct bzfifo *bz, + u_char *bdata, int count) +{ + u_char *ptr, *ptr1, new_f2; + int total, maxlen, new_z2; + struct zt *zp; + + if ((bch->debug & DEBUG_HW_BCHANNEL) && !(bch->debug & DEBUG_HW_BFIFO)) + printk(KERN_DEBUG "hfcpci_empty_fifo\n"); + zp = &bz->za[bz->f2]; /* point to Z-Regs */ + new_z2 = le16_to_cpu(zp->z2) + count; /* new position in fifo */ + if (new_z2 >= (B_FIFO_SIZE + B_SUB_VAL)) + new_z2 -= B_FIFO_SIZE; /* buffer wrap */ + new_f2 = (bz->f2 + 1) & MAX_B_FRAMES; + if ((count > MAX_DATA_SIZE + 3) || (count < 4) || + (*(bdata + (le16_to_cpu(zp->z1) - B_SUB_VAL)))) { + if (bch->debug & DEBUG_HW) + printk(KERN_DEBUG "hfcpci_empty_fifo: incoming packet " + "invalid length %d or crc\n", count); +#ifdef ERROR_STATISTIC + bch->err_inv++; +#endif + bz->za[new_f2].z2 = cpu_to_le16(new_z2); + bz->f2 = new_f2; /* next buffer */ + } else { + bch->rx_skb = mI_alloc_skb(count - 3, GFP_ATOMIC); + if (!bch->rx_skb) { + printk(KERN_WARNING "HFCPCI: receive out of memory\n"); + return; + } + total = count; + count -= 3; + ptr = skb_put(bch->rx_skb, count); + + if (le16_to_cpu(zp->z2) + count <= B_FIFO_SIZE + B_SUB_VAL) + maxlen = count; /* complete transfer */ + else + maxlen = B_FIFO_SIZE + B_SUB_VAL - + le16_to_cpu(zp->z2); /* maximum */ + + ptr1 = bdata + (le16_to_cpu(zp->z2) - B_SUB_VAL); + /* start of data */ + memcpy(ptr, ptr1, maxlen); /* copy data */ + count -= maxlen; + + if (count) { /* rest remaining */ + ptr += maxlen; + ptr1 = bdata; /* start of buffer */ + memcpy(ptr, ptr1, count); /* rest */ + } + bz->za[new_f2].z2 = cpu_to_le16(new_z2); + bz->f2 = new_f2; /* next buffer */ + recv_Bchannel(bch); + } +} + +/* + * D-channel receive procedure + */ +static int +receive_dmsg(struct hfc_pci *hc) +{ + struct dchannel *dch = &hc->dch; + int maxlen; + int rcnt, total; + int count = 5; + u_char *ptr, *ptr1; + struct dfifo *df; + struct zt *zp; + + df = &((union fifo_area *)(hc->hw.fifos))->d_chan.d_rx; + while (((df->f1 & D_FREG_MASK) != (df->f2 & D_FREG_MASK)) && count--) { + zp = &df->za[df->f2 & D_FREG_MASK]; + rcnt = le16_to_cpu(zp->z1) - le16_to_cpu(zp->z2); + if (rcnt < 0) + rcnt += D_FIFO_SIZE; + rcnt++; + if (dch->debug & DEBUG_HW_DCHANNEL) + printk(KERN_DEBUG + "hfcpci recd f1(%d) f2(%d) z1(%x) z2(%x) cnt(%d)\n", + df->f1, df->f2, + le16_to_cpu(zp->z1), + le16_to_cpu(zp->z2), + rcnt); + + if ((rcnt > MAX_DFRAME_LEN + 3) || (rcnt < 4) || + (df->data[le16_to_cpu(zp->z1)])) { + if (dch->debug & DEBUG_HW) + printk(KERN_DEBUG + "empty_fifo hfcpci paket inv. len " + "%d or crc %d\n", + rcnt, + df->data[le16_to_cpu(zp->z1)]); +#ifdef ERROR_STATISTIC + cs->err_rx++; +#endif + df->f2 = ((df->f2 + 1) & MAX_D_FRAMES) | + (MAX_D_FRAMES + 1); /* next buffer */ + df->za[df->f2 & D_FREG_MASK].z2 = + cpu_to_le16((zp->z2 + rcnt) & (D_FIFO_SIZE - 1)); + } else { + dch->rx_skb = mI_alloc_skb(rcnt - 3, GFP_ATOMIC); + if (!dch->rx_skb) { + printk(KERN_WARNING + "HFC-PCI: D receive out of memory\n"); + break; + } + total = rcnt; + rcnt -= 3; + ptr = skb_put(dch->rx_skb, rcnt); + + if (le16_to_cpu(zp->z2) + rcnt <= D_FIFO_SIZE) + maxlen = rcnt; /* complete transfer */ + else + maxlen = D_FIFO_SIZE - le16_to_cpu(zp->z2); + /* maximum */ + + ptr1 = df->data + le16_to_cpu(zp->z2); + /* start of data */ + memcpy(ptr, ptr1, maxlen); /* copy data */ + rcnt -= maxlen; + + if (rcnt) { /* rest remaining */ + ptr += maxlen; + ptr1 = df->data; /* start of buffer */ + memcpy(ptr, ptr1, rcnt); /* rest */ + } + df->f2 = ((df->f2 + 1) & MAX_D_FRAMES) | + (MAX_D_FRAMES + 1); /* next buffer */ + df->za[df->f2 & D_FREG_MASK].z2 = cpu_to_le16(( + le16_to_cpu(zp->z2) + total) & (D_FIFO_SIZE - 1)); + recv_Dchannel(dch); + } + } + return 1; +} + +/* + * check for transparent receive data and read max one threshold size if avail + */ +int +hfcpci_empty_fifo_trans(struct bchannel *bch, struct bzfifo *bz, u_char *bdata) +{ + unsigned short *z1r, *z2r; + int new_z2, fcnt, maxlen; + u_char *ptr, *ptr1; + + z1r = &bz->za[MAX_B_FRAMES].z1; /* pointer to z reg */ + z2r = z1r + 1; + + fcnt = le16_to_cpu(*z1r) - le16_to_cpu(*z2r); + if (!fcnt) + return 0; /* no data avail */ + + if (fcnt <= 0) + fcnt += B_FIFO_SIZE; /* bytes actually buffered */ + if (fcnt > HFCPCI_BTRANS_THRESHOLD) + fcnt = HFCPCI_BTRANS_THRESHOLD; /* limit size */ + + new_z2 = le16_to_cpu(*z2r) + fcnt; /* new position in fifo */ + if (new_z2 >= (B_FIFO_SIZE + B_SUB_VAL)) + new_z2 -= B_FIFO_SIZE; /* buffer wrap */ + + bch->rx_skb = mI_alloc_skb(fcnt, GFP_ATOMIC); + if (bch->rx_skb) { + ptr = skb_put(bch->rx_skb, fcnt); + if (le16_to_cpu(*z2r) + fcnt <= B_FIFO_SIZE + B_SUB_VAL) + maxlen = fcnt; /* complete transfer */ + else + maxlen = B_FIFO_SIZE + B_SUB_VAL - le16_to_cpu(*z2r); + /* maximum */ + + ptr1 = bdata + (le16_to_cpu(*z2r) - B_SUB_VAL); + /* start of data */ + memcpy(ptr, ptr1, maxlen); /* copy data */ + fcnt -= maxlen; + + if (fcnt) { /* rest remaining */ + ptr += maxlen; + ptr1 = bdata; /* start of buffer */ + memcpy(ptr, ptr1, fcnt); /* rest */ + } + recv_Bchannel(bch); + } else + printk(KERN_WARNING "HFCPCI: receive out of memory\n"); + + *z2r = cpu_to_le16(new_z2); /* new position */ + return 1; +} + +/* + * B-channel main receive routine + */ +void +main_rec_hfcpci(struct bchannel *bch) +{ + struct hfc_pci *hc = bch->hw; + int rcnt, real_fifo; + int receive, count = 5; + struct bzfifo *bz; + u_char *bdata; + struct zt *zp; + + + if ((bch->nr & 2) && (!hc->hw.bswapped)) { + bz = &((union fifo_area *)(hc->hw.fifos))->b_chans.rxbz_b2; + bdata = ((union fifo_area *)(hc->hw.fifos))->b_chans.rxdat_b2; + real_fifo = 1; + } else { + bz = &((union fifo_area *)(hc->hw.fifos))->b_chans.rxbz_b1; + bdata = ((union fifo_area *)(hc->hw.fifos))->b_chans.rxdat_b1; + real_fifo = 0; + } +Begin: + count--; + if (bz->f1 != bz->f2) { + if (bch->debug & DEBUG_HW_BCHANNEL) + printk(KERN_DEBUG "hfcpci rec ch(%x) f1(%d) f2(%d)\n", + bch->nr, bz->f1, bz->f2); + zp = &bz->za[bz->f2]; + + rcnt = le16_to_cpu(zp->z1) - le16_to_cpu(zp->z2); + if (rcnt < 0) + rcnt += B_FIFO_SIZE; + rcnt++; + if (bch->debug & DEBUG_HW_BCHANNEL) + printk(KERN_DEBUG + "hfcpci rec ch(%x) z1(%x) z2(%x) cnt(%d)\n", + bch->nr, le16_to_cpu(zp->z1), + le16_to_cpu(zp->z2), rcnt); + hfcpci_empty_bfifo(bch, bz, bdata, rcnt); + rcnt = bz->f1 - bz->f2; + if (rcnt < 0) + rcnt += MAX_B_FRAMES + 1; + if (hc->hw.last_bfifo_cnt[real_fifo] > rcnt + 1) { + rcnt = 0; + hfcpci_clear_fifo_rx(hc, real_fifo); + } + hc->hw.last_bfifo_cnt[real_fifo] = rcnt; + if (rcnt > 1) + receive = 1; + else + receive = 0; + } else if (test_bit(FLG_TRANSPARENT, &bch->Flags)) + receive = hfcpci_empty_fifo_trans(bch, bz, bdata); + else + receive = 0; + if (count && receive) + goto Begin; + +} + +/* + * D-channel send routine + */ +static void +hfcpci_fill_dfifo(struct hfc_pci *hc) +{ + struct dchannel *dch = &hc->dch; + int fcnt; + int count, new_z1, maxlen; + struct dfifo *df; + u_char *src, *dst, new_f1; + + if ((dch->debug & DEBUG_HW_DCHANNEL) && !(dch->debug & DEBUG_HW_DFIFO)) + printk(KERN_DEBUG "%s\n", __func__); + + if (!dch->tx_skb) + return; + count = dch->tx_skb->len - dch->tx_idx; + if (count <= 0) + return; + df = &((union fifo_area *) (hc->hw.fifos))->d_chan.d_tx; + + if (dch->debug & DEBUG_HW_DFIFO) + printk(KERN_DEBUG "%s:f1(%d) f2(%d) z1(f1)(%x)\n", __func__, + df->f1, df->f2, + le16_to_cpu(df->za[df->f1 & D_FREG_MASK].z1)); + fcnt = df->f1 - df->f2; /* frame count actually buffered */ + if (fcnt < 0) + fcnt += (MAX_D_FRAMES + 1); /* if wrap around */ + if (fcnt > (MAX_D_FRAMES - 1)) { + if (dch->debug & DEBUG_HW_DCHANNEL) + printk(KERN_DEBUG + "hfcpci_fill_Dfifo more as 14 frames\n"); +#ifdef ERROR_STATISTIC + cs->err_tx++; +#endif + return; + } + /* now determine free bytes in FIFO buffer */ + maxlen = le16_to_cpu(df->za[df->f2 & D_FREG_MASK].z2) - + le16_to_cpu(df->za[df->f1 & D_FREG_MASK].z1) - 1; + if (maxlen <= 0) + maxlen += D_FIFO_SIZE; /* count now contains available bytes */ + + if (dch->debug & DEBUG_HW_DCHANNEL) + printk(KERN_DEBUG "hfcpci_fill_Dfifo count(%d/%d)\n", + count, maxlen); + if (count > maxlen) { + if (dch->debug & DEBUG_HW_DCHANNEL) + printk(KERN_DEBUG "hfcpci_fill_Dfifo no fifo mem\n"); + return; + } + new_z1 = (le16_to_cpu(df->za[df->f1 & D_FREG_MASK].z1) + count) & + (D_FIFO_SIZE - 1); + new_f1 = ((df->f1 + 1) & D_FREG_MASK) | (D_FREG_MASK + 1); + src = dch->tx_skb->data + dch->tx_idx; /* source pointer */ + dst = df->data + le16_to_cpu(df->za[df->f1 & D_FREG_MASK].z1); + maxlen = D_FIFO_SIZE - le16_to_cpu(df->za[df->f1 & D_FREG_MASK].z1); + /* end fifo */ + if (maxlen > count) + maxlen = count; /* limit size */ + memcpy(dst, src, maxlen); /* first copy */ + + count -= maxlen; /* remaining bytes */ + if (count) { + dst = df->data; /* start of buffer */ + src += maxlen; /* new position */ + memcpy(dst, src, count); + } + df->za[new_f1 & D_FREG_MASK].z1 = cpu_to_le16(new_z1); + /* for next buffer */ + df->za[df->f1 & D_FREG_MASK].z1 = cpu_to_le16(new_z1); + /* new pos actual buffer */ + df->f1 = new_f1; /* next frame */ + dch->tx_idx = dch->tx_skb->len; +} + +/* + * B-channel send routine + */ +static void +hfcpci_fill_fifo(struct bchannel *bch) +{ + struct hfc_pci *hc = bch->hw; + int maxlen, fcnt; + int count, new_z1; + struct bzfifo *bz; + u_char *bdata; + u_char new_f1, *src, *dst; + unsigned short *z1t, *z2t; + + if ((bch->debug & DEBUG_HW_BCHANNEL) && !(bch->debug & DEBUG_HW_BFIFO)) + printk(KERN_DEBUG "%s\n", __func__); + if ((!bch->tx_skb) || bch->tx_skb->len <= 0) + return; + count = bch->tx_skb->len - bch->tx_idx; + if ((bch->nr & 2) && (!hc->hw.bswapped)) { + bz = &((union fifo_area *)(hc->hw.fifos))->b_chans.txbz_b2; + bdata = ((union fifo_area *)(hc->hw.fifos))->b_chans.txdat_b2; + } else { + bz = &((union fifo_area *)(hc->hw.fifos))->b_chans.txbz_b1; + bdata = ((union fifo_area *)(hc->hw.fifos))->b_chans.txdat_b1; + } + + if (test_bit(FLG_TRANSPARENT, &bch->Flags)) { + z1t = &bz->za[MAX_B_FRAMES].z1; + z2t = z1t + 1; + if (bch->debug & DEBUG_HW_BCHANNEL) + printk(KERN_DEBUG "hfcpci_fill_fifo_trans ch(%x) " + "cnt(%d) z1(%x) z2(%x)\n", bch->nr, count, + le16_to_cpu(*z1t), le16_to_cpu(*z2t)); + fcnt = le16_to_cpu(*z2t) - le16_to_cpu(*z1t); + if (fcnt <= 0) + fcnt += B_FIFO_SIZE; + /* fcnt contains available bytes in fifo */ + fcnt = B_FIFO_SIZE - fcnt; + /* remaining bytes to send (bytes in fifo) */ +next_t_frame: + count = bch->tx_skb->len - bch->tx_idx; + /* maximum fill shall be HFCPCI_BTRANS_MAX */ + if (count > HFCPCI_BTRANS_MAX - fcnt) + count = HFCPCI_BTRANS_MAX - fcnt; + if (count <= 0) + return; + /* data is suitable for fifo */ + new_z1 = le16_to_cpu(*z1t) + count; + /* new buffer Position */ + if (new_z1 >= (B_FIFO_SIZE + B_SUB_VAL)) + new_z1 -= B_FIFO_SIZE; /* buffer wrap */ + src = bch->tx_skb->data + bch->tx_idx; + /* source pointer */ + dst = bdata + (le16_to_cpu(*z1t) - B_SUB_VAL); + maxlen = (B_FIFO_SIZE + B_SUB_VAL) - le16_to_cpu(*z1t); + /* end of fifo */ + if (bch->debug & DEBUG_HW_BFIFO) + printk(KERN_DEBUG "hfcpci_FFt fcnt(%d) " + "maxl(%d) nz1(%x) dst(%p)\n", + fcnt, maxlen, new_z1, dst); + fcnt += count; + bch->tx_idx += count; + if (maxlen > count) + maxlen = count; /* limit size */ + memcpy(dst, src, maxlen); /* first copy */ + count -= maxlen; /* remaining bytes */ + if (count) { + dst = bdata; /* start of buffer */ + src += maxlen; /* new position */ + memcpy(dst, src, count); + } + *z1t = cpu_to_le16(new_z1); /* now send data */ + if (bch->tx_idx < bch->tx_skb->len) + return; + /* send confirm, on trans, free on hdlc. */ + if (test_bit(FLG_TRANSPARENT, &bch->Flags)) + confirm_Bsend(bch); + dev_kfree_skb(bch->tx_skb); + if (get_next_bframe(bch)) + goto next_t_frame; + return; + } + if (bch->debug & DEBUG_HW_BCHANNEL) + printk(KERN_DEBUG + "%s: ch(%x) f1(%d) f2(%d) z1(f1)(%x)\n", + __func__, bch->nr, bz->f1, bz->f2, + bz->za[bz->f1].z1); + fcnt = bz->f1 - bz->f2; /* frame count actually buffered */ + if (fcnt < 0) + fcnt += (MAX_B_FRAMES + 1); /* if wrap around */ + if (fcnt > (MAX_B_FRAMES - 1)) { + if (bch->debug & DEBUG_HW_BCHANNEL) + printk(KERN_DEBUG + "hfcpci_fill_Bfifo more as 14 frames\n"); + return; + } + /* now determine free bytes in FIFO buffer */ + maxlen = le16_to_cpu(bz->za[bz->f2].z2) - + le16_to_cpu(bz->za[bz->f1].z1) - 1; + if (maxlen <= 0) + maxlen += B_FIFO_SIZE; /* count now contains available bytes */ + + if (bch->debug & DEBUG_HW_BCHANNEL) + printk(KERN_DEBUG "hfcpci_fill_fifo ch(%x) count(%d/%d)\n", + bch->nr, count, maxlen); + + if (maxlen < count) { + if (bch->debug & DEBUG_HW_BCHANNEL) + printk(KERN_DEBUG "hfcpci_fill_fifo no fifo mem\n"); + return; + } + new_z1 = le16_to_cpu(bz->za[bz->f1].z1) + count; + /* new buffer Position */ + if (new_z1 >= (B_FIFO_SIZE + B_SUB_VAL)) + new_z1 -= B_FIFO_SIZE; /* buffer wrap */ + + new_f1 = ((bz->f1 + 1) & MAX_B_FRAMES); + src = bch->tx_skb->data + bch->tx_idx; /* source pointer */ + dst = bdata + (le16_to_cpu(bz->za[bz->f1].z1) - B_SUB_VAL); + maxlen = (B_FIFO_SIZE + B_SUB_VAL) - le16_to_cpu(bz->za[bz->f1].z1); + /* end fifo */ + if (maxlen > count) + maxlen = count; /* limit size */ + memcpy(dst, src, maxlen); /* first copy */ + + count -= maxlen; /* remaining bytes */ + if (count) { + dst = bdata; /* start of buffer */ + src += maxlen; /* new position */ + memcpy(dst, src, count); + } + bz->za[new_f1].z1 = cpu_to_le16(new_z1); /* for next buffer */ + bz->f1 = new_f1; /* next frame */ + dev_kfree_skb(bch->tx_skb); + get_next_bframe(bch); +} + + + +/* + * handle L1 state changes TE + */ + +static void +ph_state_te(struct dchannel *dch) +{ + if (dch->debug) + printk(KERN_DEBUG "%s: TE newstate %x\n", + __func__, dch->state); + switch (dch->state) { + case 0: + l1_event(dch->l1, HW_RESET_IND); + break; + case 3: + l1_event(dch->l1, HW_DEACT_IND); + break; + case 5: + case 8: + l1_event(dch->l1, ANYSIGNAL); + break; + case 6: + l1_event(dch->l1, INFO2); + break; + case 7: + l1_event(dch->l1, INFO4_P8); + break; + } +} + +/* + * handle L1 state changes NT + */ + +static void +handle_nt_timer3(struct dchannel *dch) { + struct hfc_pci *hc = dch->hw; + + test_and_clear_bit(FLG_HFC_TIMER_T3, &dch->Flags); + hc->hw.int_m1 &= ~HFCPCI_INTS_TIMER; + Write_hfc(hc, HFCPCI_INT_M1, hc->hw.int_m1); + hc->hw.nt_timer = 0; + test_and_set_bit(FLG_ACTIVE, &dch->Flags); + if (test_bit(HFC_CFG_MASTER, &hc->cfg)) + hc->hw.mst_m |= HFCPCI_MASTER; + Write_hfc(hc, HFCPCI_MST_MODE, hc->hw.mst_m); + _queue_data(&dch->dev.D, PH_ACTIVATE_IND, + MISDN_ID_ANY, 0, NULL, GFP_ATOMIC); +} + +static void +ph_state_nt(struct dchannel *dch) +{ + struct hfc_pci *hc = dch->hw; + + if (dch->debug) + printk(KERN_DEBUG "%s: NT newstate %x\n", + __func__, dch->state); + switch (dch->state) { + case 2: + if (hc->hw.nt_timer < 0) { + hc->hw.nt_timer = 0; + test_and_clear_bit(FLG_HFC_TIMER_T3, &dch->Flags); + test_and_clear_bit(FLG_HFC_TIMER_T1, &dch->Flags); + hc->hw.int_m1 &= ~HFCPCI_INTS_TIMER; + Write_hfc(hc, HFCPCI_INT_M1, hc->hw.int_m1); + /* Clear already pending ints */ + if (Read_hfc(hc, HFCPCI_INT_S1)); + Write_hfc(hc, HFCPCI_STATES, 4 | HFCPCI_LOAD_STATE); + udelay(10); + Write_hfc(hc, HFCPCI_STATES, 4); + dch->state = 4; + } else if (hc->hw.nt_timer == 0) { + hc->hw.int_m1 |= HFCPCI_INTS_TIMER; + Write_hfc(hc, HFCPCI_INT_M1, hc->hw.int_m1); + hc->hw.nt_timer = NT_T1_COUNT; + hc->hw.ctmt &= ~HFCPCI_AUTO_TIMER; + hc->hw.ctmt |= HFCPCI_TIM3_125; + Write_hfc(hc, HFCPCI_CTMT, hc->hw.ctmt | + HFCPCI_CLTIMER); + test_and_clear_bit(FLG_HFC_TIMER_T3, &dch->Flags); + test_and_set_bit(FLG_HFC_TIMER_T1, &dch->Flags); + /* allow G2 -> G3 transition */ + Write_hfc(hc, HFCPCI_STATES, 2 | HFCPCI_NT_G2_G3); + } else { + Write_hfc(hc, HFCPCI_STATES, 2 | HFCPCI_NT_G2_G3); + } + break; + case 1: + hc->hw.nt_timer = 0; + test_and_clear_bit(FLG_HFC_TIMER_T3, &dch->Flags); + test_and_clear_bit(FLG_HFC_TIMER_T1, &dch->Flags); + hc->hw.int_m1 &= ~HFCPCI_INTS_TIMER; + Write_hfc(hc, HFCPCI_INT_M1, hc->hw.int_m1); + test_and_clear_bit(FLG_ACTIVE, &dch->Flags); + hc->hw.mst_m &= ~HFCPCI_MASTER; + Write_hfc(hc, HFCPCI_MST_MODE, hc->hw.mst_m); + test_and_clear_bit(FLG_L2_ACTIVATED, &dch->Flags); + _queue_data(&dch->dev.D, PH_DEACTIVATE_IND, + MISDN_ID_ANY, 0, NULL, GFP_ATOMIC); + break; + case 4: + hc->hw.nt_timer = 0; + test_and_clear_bit(FLG_HFC_TIMER_T3, &dch->Flags); + test_and_clear_bit(FLG_HFC_TIMER_T1, &dch->Flags); + hc->hw.int_m1 &= ~HFCPCI_INTS_TIMER; + Write_hfc(hc, HFCPCI_INT_M1, hc->hw.int_m1); + break; + case 3: + if (!test_and_set_bit(FLG_HFC_TIMER_T3, &dch->Flags)) { + if (!test_and_clear_bit(FLG_L2_ACTIVATED, + &dch->Flags)) { + handle_nt_timer3(dch); + break; + } + test_and_clear_bit(FLG_HFC_TIMER_T1, &dch->Flags); + hc->hw.int_m1 |= HFCPCI_INTS_TIMER; + Write_hfc(hc, HFCPCI_INT_M1, hc->hw.int_m1); + hc->hw.nt_timer = NT_T3_COUNT; + hc->hw.ctmt &= ~HFCPCI_AUTO_TIMER; + hc->hw.ctmt |= HFCPCI_TIM3_125; + Write_hfc(hc, HFCPCI_CTMT, hc->hw.ctmt | + HFCPCI_CLTIMER); + } + break; + } +} + +static void +ph_state(struct dchannel *dch) +{ + struct hfc_pci *hc = dch->hw; + + if (hc->hw.protocol == ISDN_P_NT_S0) { + if (test_bit(FLG_HFC_TIMER_T3, &dch->Flags) && + hc->hw.nt_timer < 0) + handle_nt_timer3(dch); + else + ph_state_nt(dch); + } else + ph_state_te(dch); +} + +/* + * Layer 1 callback function + */ +static int +hfc_l1callback(struct dchannel *dch, u_int cmd) +{ + struct hfc_pci *hc = dch->hw; + + switch (cmd) { + case INFO3_P8: + case INFO3_P10: + if (test_bit(HFC_CFG_MASTER, &hc->cfg)) + hc->hw.mst_m |= HFCPCI_MASTER; + Write_hfc(hc, HFCPCI_MST_MODE, hc->hw.mst_m); + break; + case HW_RESET_REQ: + Write_hfc(hc, HFCPCI_STATES, HFCPCI_LOAD_STATE | 3); + /* HFC ST 3 */ + udelay(6); + Write_hfc(hc, HFCPCI_STATES, 3); /* HFC ST 2 */ + if (test_bit(HFC_CFG_MASTER, &hc->cfg)) + hc->hw.mst_m |= HFCPCI_MASTER; + Write_hfc(hc, HFCPCI_MST_MODE, hc->hw.mst_m); + Write_hfc(hc, HFCPCI_STATES, HFCPCI_ACTIVATE | + HFCPCI_DO_ACTION); + l1_event(dch->l1, HW_POWERUP_IND); + break; + case HW_DEACT_REQ: + hc->hw.mst_m &= ~HFCPCI_MASTER; + Write_hfc(hc, HFCPCI_MST_MODE, hc->hw.mst_m); + skb_queue_purge(&dch->squeue); + if (dch->tx_skb) { + dev_kfree_skb(dch->tx_skb); + dch->tx_skb = NULL; + } + dch->tx_idx = 0; + if (dch->rx_skb) { + dev_kfree_skb(dch->rx_skb); + dch->rx_skb = NULL; + } + test_and_clear_bit(FLG_TX_BUSY, &dch->Flags); + if (test_and_clear_bit(FLG_BUSY_TIMER, &dch->Flags)) + del_timer(&dch->timer); + break; + case HW_POWERUP_REQ: + Write_hfc(hc, HFCPCI_STATES, HFCPCI_DO_ACTION); + break; + case PH_ACTIVATE_IND: + test_and_set_bit(FLG_ACTIVE, &dch->Flags); + _queue_data(&dch->dev.D, cmd, MISDN_ID_ANY, 0, NULL, + GFP_ATOMIC); + break; + case PH_DEACTIVATE_IND: + test_and_clear_bit(FLG_ACTIVE, &dch->Flags); + _queue_data(&dch->dev.D, cmd, MISDN_ID_ANY, 0, NULL, + GFP_ATOMIC); + break; + default: + if (dch->debug & DEBUG_HW) + printk(KERN_DEBUG "%s: unknown command %x\n", + __func__, cmd); + return -1; + } + return 0; +} + +/* + * Interrupt handler + */ +static inline void +tx_birq(struct bchannel *bch) +{ + if (bch->tx_skb && bch->tx_idx < bch->tx_skb->len) + hfcpci_fill_fifo(bch); + else { + if (bch->tx_skb) + dev_kfree_skb(bch->tx_skb); + if (get_next_bframe(bch)) + hfcpci_fill_fifo(bch); + } +} + +static inline void +tx_dirq(struct dchannel *dch) +{ + if (dch->tx_skb && dch->tx_idx < dch->tx_skb->len) + hfcpci_fill_dfifo(dch->hw); + else { + if (dch->tx_skb) + dev_kfree_skb(dch->tx_skb); + if (get_next_dframe(dch)) + hfcpci_fill_dfifo(dch->hw); + } +} + +static irqreturn_t +hfcpci_int(int intno, void *dev_id) +{ + struct hfc_pci *hc = dev_id; + u_char exval; + struct bchannel *bch; + u_char val, stat; + + spin_lock(&hc->lock); + if (!(hc->hw.int_m2 & 0x08)) { + spin_unlock(&hc->lock); + return IRQ_NONE; /* not initialised */ + } + stat = Read_hfc(hc, HFCPCI_STATUS); + if (HFCPCI_ANYINT & stat) { + val = Read_hfc(hc, HFCPCI_INT_S1); + if (hc->dch.debug & DEBUG_HW_DCHANNEL) + printk(KERN_DEBUG + "HFC-PCI: stat(%02x) s1(%02x)\n", stat, val); + } else { + /* shared */ + spin_unlock(&hc->lock); + return IRQ_NONE; + } + hc->irqcnt++; + + if (hc->dch.debug & DEBUG_HW_DCHANNEL) + printk(KERN_DEBUG "HFC-PCI irq %x\n", val); + val &= hc->hw.int_m1; + if (val & 0x40) { /* state machine irq */ + exval = Read_hfc(hc, HFCPCI_STATES) & 0xf; + if (hc->dch.debug & DEBUG_HW_DCHANNEL) + printk(KERN_DEBUG "ph_state chg %d->%d\n", + hc->dch.state, exval); + hc->dch.state = exval; + schedule_event(&hc->dch, FLG_PHCHANGE); + val &= ~0x40; + } + if (val & 0x80) { /* timer irq */ + if (hc->hw.protocol == ISDN_P_NT_S0) { + if ((--hc->hw.nt_timer) < 0) + schedule_event(&hc->dch, FLG_PHCHANGE); + } + val &= ~0x80; + Write_hfc(hc, HFCPCI_CTMT, hc->hw.ctmt | HFCPCI_CLTIMER); + } + if (val & 0x08) { + bch = Sel_BCS(hc, hc->hw.bswapped ? 2 : 1); + if (bch) + main_rec_hfcpci(bch); + else if (hc->dch.debug) + printk(KERN_DEBUG "hfcpci spurious 0x08 IRQ\n"); + } + if (val & 0x10) { + bch = Sel_BCS(hc, 2); + if (bch) + main_rec_hfcpci(bch); + else if (hc->dch.debug) + printk(KERN_DEBUG "hfcpci spurious 0x10 IRQ\n"); + } + if (val & 0x01) { + bch = Sel_BCS(hc, hc->hw.bswapped ? 2 : 1); + if (bch) + tx_birq(bch); + else if (hc->dch.debug) + printk(KERN_DEBUG "hfcpci spurious 0x01 IRQ\n"); + } + if (val & 0x02) { + bch = Sel_BCS(hc, 2); + if (bch) + tx_birq(bch); + else if (hc->dch.debug) + printk(KERN_DEBUG "hfcpci spurious 0x02 IRQ\n"); + } + if (val & 0x20) + receive_dmsg(hc); + if (val & 0x04) { /* dframe transmitted */ + if (test_and_clear_bit(FLG_BUSY_TIMER, &hc->dch.Flags)) + del_timer(&hc->dch.timer); + tx_dirq(&hc->dch); + } + spin_unlock(&hc->lock); + return IRQ_HANDLED; +} + +/* + * timer callback for D-chan busy resolution. Currently no function + */ +static void +hfcpci_dbusy_timer(struct hfc_pci *hc) +{ +} + +/* + * activate/deactivate hardware for selected channels and mode + */ +static int +mode_hfcpci(struct bchannel *bch, int bc, int protocol) +{ + struct hfc_pci *hc = bch->hw; + int fifo2; + u_char rx_slot = 0, tx_slot = 0, pcm_mode; + + if (bch->debug & DEBUG_HW_BCHANNEL) + printk(KERN_DEBUG + "HFCPCI bchannel protocol %x-->%x ch %x-->%x\n", + bch->state, protocol, bch->nr, bc); + + fifo2 = bc; + pcm_mode = (bc>>24) & 0xff; + if (pcm_mode) { /* PCM SLOT USE */ + if (!test_bit(HFC_CFG_PCM, &hc->cfg)) + printk(KERN_WARNING + "%s: pcm channel id without HFC_CFG_PCM\n", + __func__); + rx_slot = (bc>>8) & 0xff; + tx_slot = (bc>>16) & 0xff; + bc = bc & 0xff; + } else if (test_bit(HFC_CFG_PCM, &hc->cfg) && + (protocol > ISDN_P_NONE)) + printk(KERN_WARNING "%s: no pcm channel id but HFC_CFG_PCM\n", + __func__); + if (hc->chanlimit > 1) { + hc->hw.bswapped = 0; /* B1 and B2 normal mode */ + hc->hw.sctrl_e &= ~0x80; + } else { + if (bc & 2) { + if (protocol != ISDN_P_NONE) { + hc->hw.bswapped = 1; /* B1 and B2 exchanged */ + hc->hw.sctrl_e |= 0x80; + } else { + hc->hw.bswapped = 0; /* B1 and B2 normal mode */ + hc->hw.sctrl_e &= ~0x80; + } + fifo2 = 1; + } else { + hc->hw.bswapped = 0; /* B1 and B2 normal mode */ + hc->hw.sctrl_e &= ~0x80; + } + } + switch (protocol) { + case (-1): /* used for init */ + bch->state = -1; + bch->nr = bc; + case (ISDN_P_NONE): + if (bch->state == ISDN_P_NONE) + return 0; + if (bc & 2) { + hc->hw.sctrl &= ~SCTRL_B2_ENA; + hc->hw.sctrl_r &= ~SCTRL_B2_ENA; + } else { + hc->hw.sctrl &= ~SCTRL_B1_ENA; + hc->hw.sctrl_r &= ~SCTRL_B1_ENA; + } + if (fifo2 & 2) { + hc->hw.fifo_en &= ~HFCPCI_FIFOEN_B2; + hc->hw.int_m1 &= ~(HFCPCI_INTS_B2TRANS + + HFCPCI_INTS_B2REC); + } else { + hc->hw.fifo_en &= ~HFCPCI_FIFOEN_B1; + hc->hw.int_m1 &= ~(HFCPCI_INTS_B1TRANS + + HFCPCI_INTS_B1REC); + } +#ifdef REVERSE_BITORDER + if (bch->nr & 2) + hc->hw.cirm &= 0x7f; + else + hc->hw.cirm &= 0xbf; +#endif + bch->state = ISDN_P_NONE; + bch->nr = bc; + test_and_clear_bit(FLG_HDLC, &bch->Flags); + test_and_clear_bit(FLG_TRANSPARENT, &bch->Flags); + break; + case (ISDN_P_B_RAW): + bch->state = protocol; + bch->nr = bc; + hfcpci_clear_fifo_rx(hc, (fifo2 & 2)?1:0); + hfcpci_clear_fifo_tx(hc, (fifo2 & 2)?1:0); + if (bc & 2) { + hc->hw.sctrl |= SCTRL_B2_ENA; + hc->hw.sctrl_r |= SCTRL_B2_ENA; +#ifdef REVERSE_BITORDER + hc->hw.cirm |= 0x80; +#endif + } else { + hc->hw.sctrl |= SCTRL_B1_ENA; + hc->hw.sctrl_r |= SCTRL_B1_ENA; +#ifdef REVERSE_BITORDER + hc->hw.cirm |= 0x40; +#endif + } + if (fifo2 & 2) { + hc->hw.fifo_en |= HFCPCI_FIFOEN_B2; + hc->hw.int_m1 |= (HFCPCI_INTS_B2TRANS + + HFCPCI_INTS_B2REC); + hc->hw.ctmt |= 2; + hc->hw.conn &= ~0x18; + } else { + hc->hw.fifo_en |= HFCPCI_FIFOEN_B1; + hc->hw.int_m1 |= (HFCPCI_INTS_B1TRANS + + HFCPCI_INTS_B1REC); + hc->hw.ctmt |= 1; + hc->hw.conn &= ~0x03; + } + test_and_set_bit(FLG_TRANSPARENT, &bch->Flags); + break; + case (ISDN_P_B_HDLC): + bch->state = protocol; + bch->nr = bc; + hfcpci_clear_fifo_rx(hc, (fifo2 & 2)?1:0); + hfcpci_clear_fifo_tx(hc, (fifo2 & 2)?1:0); + if (bc & 2) { + hc->hw.sctrl |= SCTRL_B2_ENA; + hc->hw.sctrl_r |= SCTRL_B2_ENA; + } else { + hc->hw.sctrl |= SCTRL_B1_ENA; + hc->hw.sctrl_r |= SCTRL_B1_ENA; + } + if (fifo2 & 2) { + hc->hw.last_bfifo_cnt[1] = 0; + hc->hw.fifo_en |= HFCPCI_FIFOEN_B2; + hc->hw.int_m1 |= (HFCPCI_INTS_B2TRANS + + HFCPCI_INTS_B2REC); + hc->hw.ctmt &= ~2; + hc->hw.conn &= ~0x18; + } else { + hc->hw.last_bfifo_cnt[0] = 0; + hc->hw.fifo_en |= HFCPCI_FIFOEN_B1; + hc->hw.int_m1 |= (HFCPCI_INTS_B1TRANS + + HFCPCI_INTS_B1REC); + hc->hw.ctmt &= ~1; + hc->hw.conn &= ~0x03; + } + test_and_set_bit(FLG_HDLC, &bch->Flags); + break; + default: + printk(KERN_DEBUG "prot not known %x\n", protocol); + return -ENOPROTOOPT; + } + if (test_bit(HFC_CFG_PCM, &hc->cfg)) { + if ((protocol == ISDN_P_NONE) || + (protocol == -1)) { /* init case */ + rx_slot = 0; + tx_slot = 0; + } else { + if (test_bit(HFC_CFG_SW_DD_DU, &hc->cfg)) { + rx_slot |= 0xC0; + tx_slot |= 0xC0; + } else { + rx_slot |= 0x80; + tx_slot |= 0x80; + } + } + if (bc & 2) { + hc->hw.conn &= 0xc7; + hc->hw.conn |= 0x08; + printk(KERN_DEBUG "%s: Write_hfc: B2_SSL 0x%x\n", + __func__, tx_slot); + printk(KERN_DEBUG "%s: Write_hfc: B2_RSL 0x%x\n", + __func__, rx_slot); + Write_hfc(hc, HFCPCI_B2_SSL, tx_slot); + Write_hfc(hc, HFCPCI_B2_RSL, rx_slot); + } else { + hc->hw.conn &= 0xf8; + hc->hw.conn |= 0x01; + printk(KERN_DEBUG "%s: Write_hfc: B1_SSL 0x%x\n", + __func__, tx_slot); + printk(KERN_DEBUG "%s: Write_hfc: B1_RSL 0x%x\n", + __func__, rx_slot); + Write_hfc(hc, HFCPCI_B1_SSL, tx_slot); + Write_hfc(hc, HFCPCI_B1_RSL, rx_slot); + } + } + Write_hfc(hc, HFCPCI_SCTRL_E, hc->hw.sctrl_e); + Write_hfc(hc, HFCPCI_INT_M1, hc->hw.int_m1); + Write_hfc(hc, HFCPCI_FIFO_EN, hc->hw.fifo_en); + Write_hfc(hc, HFCPCI_SCTRL, hc->hw.sctrl); + Write_hfc(hc, HFCPCI_SCTRL_R, hc->hw.sctrl_r); + Write_hfc(hc, HFCPCI_CTMT, hc->hw.ctmt); + Write_hfc(hc, HFCPCI_CONNECT, hc->hw.conn); +#ifdef REVERSE_BITORDER + Write_hfc(hc, HFCPCI_CIRM, hc->hw.cirm); +#endif + return 0; +} + +static int +set_hfcpci_rxtest(struct bchannel *bch, int protocol, int chan) +{ + struct hfc_pci *hc = bch->hw; + + if (bch->debug & DEBUG_HW_BCHANNEL) + printk(KERN_DEBUG + "HFCPCI bchannel test rx protocol %x-->%x ch %x-->%x\n", + bch->state, protocol, bch->nr, chan); + if (bch->nr != chan) { + printk(KERN_DEBUG + "HFCPCI rxtest wrong channel parameter %x/%x\n", + bch->nr, chan); + return -EINVAL; + } + switch (protocol) { + case (ISDN_P_B_RAW): + bch->state = protocol; + hfcpci_clear_fifo_rx(hc, (chan & 2)?1:0); + if (chan & 2) { + hc->hw.sctrl_r |= SCTRL_B2_ENA; + hc->hw.fifo_en |= HFCPCI_FIFOEN_B2RX; + hc->hw.int_m1 |= HFCPCI_INTS_B2REC; + hc->hw.ctmt |= 2; + hc->hw.conn &= ~0x18; +#ifdef REVERSE_BITORDER + hc->hw.cirm |= 0x80; +#endif + } else { + hc->hw.sctrl_r |= SCTRL_B1_ENA; + hc->hw.fifo_en |= HFCPCI_FIFOEN_B1RX; + hc->hw.int_m1 |= HFCPCI_INTS_B1REC; + hc->hw.ctmt |= 1; + hc->hw.conn &= ~0x03; +#ifdef REVERSE_BITORDER + hc->hw.cirm |= 0x40; +#endif + } + break; + case (ISDN_P_B_HDLC): + bch->state = protocol; + hfcpci_clear_fifo_rx(hc, (chan & 2)?1:0); + if (chan & 2) { + hc->hw.sctrl_r |= SCTRL_B2_ENA; + hc->hw.last_bfifo_cnt[1] = 0; + hc->hw.fifo_en |= HFCPCI_FIFOEN_B2RX; + hc->hw.int_m1 |= HFCPCI_INTS_B2REC; + hc->hw.ctmt &= ~2; + hc->hw.conn &= ~0x18; + } else { + hc->hw.sctrl_r |= SCTRL_B1_ENA; + hc->hw.last_bfifo_cnt[0] = 0; + hc->hw.fifo_en |= HFCPCI_FIFOEN_B1RX; + hc->hw.int_m1 |= HFCPCI_INTS_B1REC; + hc->hw.ctmt &= ~1; + hc->hw.conn &= ~0x03; + } + break; + default: + printk(KERN_DEBUG "prot not known %x\n", protocol); + return -ENOPROTOOPT; + } + Write_hfc(hc, HFCPCI_INT_M1, hc->hw.int_m1); + Write_hfc(hc, HFCPCI_FIFO_EN, hc->hw.fifo_en); + Write_hfc(hc, HFCPCI_SCTRL_R, hc->hw.sctrl_r); + Write_hfc(hc, HFCPCI_CTMT, hc->hw.ctmt); + Write_hfc(hc, HFCPCI_CONNECT, hc->hw.conn); +#ifdef REVERSE_BITORDER + Write_hfc(hc, HFCPCI_CIRM, hc->hw.cirm); +#endif + return 0; +} + +static void +deactivate_bchannel(struct bchannel *bch) +{ + struct hfc_pci *hc = bch->hw; + u_long flags; + + spin_lock_irqsave(&hc->lock, flags); + if (test_and_clear_bit(FLG_TX_NEXT, &bch->Flags)) { + dev_kfree_skb(bch->next_skb); + bch->next_skb = NULL; + } + if (bch->tx_skb) { + dev_kfree_skb(bch->tx_skb); + bch->tx_skb = NULL; + } + bch->tx_idx = 0; + if (bch->rx_skb) { + dev_kfree_skb(bch->rx_skb); + bch->rx_skb = NULL; + } + mode_hfcpci(bch, bch->nr, ISDN_P_NONE); + test_and_clear_bit(FLG_ACTIVE, &bch->Flags); + test_and_clear_bit(FLG_TX_BUSY, &bch->Flags); + spin_unlock_irqrestore(&hc->lock, flags); +} + +/* + * Layer 1 B-channel hardware access + */ +static int +channel_bctrl(struct bchannel *bch, struct mISDN_ctrl_req *cq) +{ + int ret = 0; + + switch (cq->op) { + case MISDN_CTRL_GETOP: + cq->op = 0; + break; + default: + printk(KERN_WARNING "%s: unknown Op %x\n", __func__, cq->op); + ret = -EINVAL; + break; + } + return ret; +} +static int +hfc_bctrl(struct mISDNchannel *ch, u_int cmd, void *arg) +{ + struct bchannel *bch = container_of(ch, struct bchannel, ch); + struct hfc_pci *hc = bch->hw; + int ret = -EINVAL; + u_long flags; + + if (bch->debug & DEBUG_HW) + printk(KERN_DEBUG "%s: cmd:%x %p\n", __func__, cmd, arg); + switch (cmd) { + case HW_TESTRX_RAW: + spin_lock_irqsave(&hc->lock, flags); + ret = set_hfcpci_rxtest(bch, ISDN_P_B_RAW, (int)(long)arg); + spin_unlock_irqrestore(&hc->lock, flags); + break; + case HW_TESTRX_HDLC: + spin_lock_irqsave(&hc->lock, flags); + ret = set_hfcpci_rxtest(bch, ISDN_P_B_HDLC, (int)(long)arg); + spin_unlock_irqrestore(&hc->lock, flags); + break; + case HW_TESTRX_OFF: + spin_lock_irqsave(&hc->lock, flags); + mode_hfcpci(bch, bch->nr, ISDN_P_NONE); + spin_unlock_irqrestore(&hc->lock, flags); + ret = 0; + break; + case CLOSE_CHANNEL: + test_and_clear_bit(FLG_OPEN, &bch->Flags); + if (test_bit(FLG_ACTIVE, &bch->Flags)) + deactivate_bchannel(bch); + ch->protocol = ISDN_P_NONE; + ch->peer = NULL; + module_put(THIS_MODULE); + ret = 0; + break; + case CONTROL_CHANNEL: + ret = channel_bctrl(bch, arg); + break; + default: + printk(KERN_WARNING "%s: unknown prim(%x)\n", + __func__, cmd); + } + return ret; +} + +/* + * Layer2 -> Layer 1 Dchannel data + */ +static int +hfcpci_l2l1D(struct mISDNchannel *ch, struct sk_buff *skb) +{ + struct mISDNdevice *dev = container_of(ch, struct mISDNdevice, D); + struct dchannel *dch = container_of(dev, struct dchannel, dev); + struct hfc_pci *hc = dch->hw; + int ret = -EINVAL; + struct mISDNhead *hh = mISDN_HEAD_P(skb); + unsigned int id; + u_long flags; + + switch (hh->prim) { + case PH_DATA_REQ: + spin_lock_irqsave(&hc->lock, flags); + ret = dchannel_senddata(dch, skb); + if (ret > 0) { /* direct TX */ + id = hh->id; /* skb can be freed */ + hfcpci_fill_dfifo(dch->hw); + ret = 0; + spin_unlock_irqrestore(&hc->lock, flags); + queue_ch_frame(ch, PH_DATA_CNF, id, NULL); + } else + spin_unlock_irqrestore(&hc->lock, flags); + return ret; + case PH_ACTIVATE_REQ: + spin_lock_irqsave(&hc->lock, flags); + if (hc->hw.protocol == ISDN_P_NT_S0) { + ret = 0; + if (test_bit(HFC_CFG_MASTER, &hc->cfg)) + hc->hw.mst_m |= HFCPCI_MASTER; + Write_hfc(hc, HFCPCI_MST_MODE, hc->hw.mst_m); + if (test_bit(FLG_ACTIVE, &dch->Flags)) { + spin_unlock_irqrestore(&hc->lock, flags); + _queue_data(&dch->dev.D, PH_ACTIVATE_IND, + MISDN_ID_ANY, 0, NULL, GFP_ATOMIC); + break; + } + test_and_set_bit(FLG_L2_ACTIVATED, &dch->Flags); + Write_hfc(hc, HFCPCI_STATES, HFCPCI_ACTIVATE | + HFCPCI_DO_ACTION | 1); + } else + ret = l1_event(dch->l1, hh->prim); + spin_unlock_irqrestore(&hc->lock, flags); + break; + case PH_DEACTIVATE_REQ: + test_and_clear_bit(FLG_L2_ACTIVATED, &dch->Flags); + spin_lock_irqsave(&hc->lock, flags); + if (hc->hw.protocol == ISDN_P_NT_S0) { + /* prepare deactivation */ + Write_hfc(hc, HFCPCI_STATES, 0x40); + skb_queue_purge(&dch->squeue); + if (dch->tx_skb) { + dev_kfree_skb(dch->tx_skb); + dch->tx_skb = NULL; + } + dch->tx_idx = 0; + if (dch->rx_skb) { + dev_kfree_skb(dch->rx_skb); + dch->rx_skb = NULL; + } + test_and_clear_bit(FLG_TX_BUSY, &dch->Flags); + if (test_and_clear_bit(FLG_BUSY_TIMER, &dch->Flags)) + del_timer(&dch->timer); +#ifdef FIXME + if (test_and_clear_bit(FLG_L1_BUSY, &dch->Flags)) + dchannel_sched_event(&hc->dch, D_CLEARBUSY); +#endif + hc->hw.mst_m &= ~HFCPCI_MASTER; + Write_hfc(hc, HFCPCI_MST_MODE, hc->hw.mst_m); + ret = 0; + } else { + ret = l1_event(dch->l1, hh->prim); + } + spin_unlock_irqrestore(&hc->lock, flags); + break; + } + if (!ret) + dev_kfree_skb(skb); + return ret; +} + +/* + * Layer2 -> Layer 1 Bchannel data + */ +static int +hfcpci_l2l1B(struct mISDNchannel *ch, struct sk_buff *skb) +{ + struct bchannel *bch = container_of(ch, struct bchannel, ch); + struct hfc_pci *hc = bch->hw; + int ret = -EINVAL; + struct mISDNhead *hh = mISDN_HEAD_P(skb); + unsigned int id; + u_long flags; + + switch (hh->prim) { + case PH_DATA_REQ: + spin_lock_irqsave(&hc->lock, flags); + ret = bchannel_senddata(bch, skb); + if (ret > 0) { /* direct TX */ + id = hh->id; /* skb can be freed */ + hfcpci_fill_fifo(bch); + ret = 0; + spin_unlock_irqrestore(&hc->lock, flags); + if (!test_bit(FLG_TRANSPARENT, &bch->Flags)) + queue_ch_frame(ch, PH_DATA_CNF, id, NULL); + } else + spin_unlock_irqrestore(&hc->lock, flags); + return ret; + case PH_ACTIVATE_REQ: + spin_lock_irqsave(&hc->lock, flags); + if (!test_and_set_bit(FLG_ACTIVE, &bch->Flags)) + ret = mode_hfcpci(bch, bch->nr, ch->protocol); + else + ret = 0; + spin_unlock_irqrestore(&hc->lock, flags); + if (!ret) + _queue_data(ch, PH_ACTIVATE_IND, MISDN_ID_ANY, 0, + NULL, GFP_KERNEL); + break; + case PH_DEACTIVATE_REQ: + deactivate_bchannel(bch); + _queue_data(ch, PH_DEACTIVATE_IND, MISDN_ID_ANY, 0, + NULL, GFP_KERNEL); + ret = 0; + break; + } + if (!ret) + dev_kfree_skb(skb); + return ret; +} + +/* + * called for card init message + */ + +void +inithfcpci(struct hfc_pci *hc) +{ + printk(KERN_DEBUG "inithfcpci: entered\n"); + hc->dch.timer.function = (void *) hfcpci_dbusy_timer; + hc->dch.timer.data = (long) &hc->dch; + init_timer(&hc->dch.timer); + hc->chanlimit = 2; + mode_hfcpci(&hc->bch[0], 1, -1); + mode_hfcpci(&hc->bch[1], 2, -1); +} + + +static int +init_card(struct hfc_pci *hc) +{ + int cnt = 3; + u_long flags; + + printk(KERN_DEBUG "init_card: entered\n"); + + + spin_lock_irqsave(&hc->lock, flags); + disable_hwirq(hc); + spin_unlock_irqrestore(&hc->lock, flags); + if (request_irq(hc->irq, hfcpci_int, IRQF_SHARED, "HFC PCI", hc)) { + printk(KERN_WARNING + "mISDN: couldn't get interrupt %d\n", hc->irq); + return -EIO; + } + spin_lock_irqsave(&hc->lock, flags); + reset_hfcpci(hc); + while (cnt) { + inithfcpci(hc); + /* + * Finally enable IRQ output + * this is only allowed, if an IRQ routine is allready + * established for this HFC, so don't do that earlier + */ + enable_hwirq(hc); + spin_unlock_irqrestore(&hc->lock, flags); + /* Timeout 80ms */ + current->state = TASK_UNINTERRUPTIBLE; + schedule_timeout((80*HZ)/1000); + printk(KERN_INFO "HFC PCI: IRQ %d count %d\n", + hc->irq, hc->irqcnt); + /* now switch timer interrupt off */ + spin_lock_irqsave(&hc->lock, flags); + hc->hw.int_m1 &= ~HFCPCI_INTS_TIMER; + Write_hfc(hc, HFCPCI_INT_M1, hc->hw.int_m1); + /* reinit mode reg */ + Write_hfc(hc, HFCPCI_MST_MODE, hc->hw.mst_m); + if (!hc->irqcnt) { + printk(KERN_WARNING + "HFC PCI: IRQ(%d) getting no interrupts " + "during init %d\n", hc->irq, 4 - cnt); + if (cnt == 1) { + spin_unlock_irqrestore(&hc->lock, flags); + return -EIO; + } else { + reset_hfcpci(hc); + cnt--; + } + } else { + spin_unlock_irqrestore(&hc->lock, flags); + hc->initdone = 1; + return 0; + } + } + disable_hwirq(hc); + spin_unlock_irqrestore(&hc->lock, flags); + free_irq(hc->irq, hc); + return -EIO; +} + +static int +channel_ctrl(struct hfc_pci *hc, struct mISDN_ctrl_req *cq) +{ + int ret = 0; + u_char slot; + + switch (cq->op) { + case MISDN_CTRL_GETOP: + cq->op = MISDN_CTRL_LOOP | MISDN_CTRL_CONNECT | + MISDN_CTRL_DISCONNECT; + break; + case MISDN_CTRL_LOOP: + /* channel 0 disabled loop */ + if (cq->channel < 0 || cq->channel > 2) { + ret = -EINVAL; + break; + } + if (cq->channel & 1) { + if (test_bit(HFC_CFG_SW_DD_DU, &hc->cfg)) + slot = 0xC0; + else + slot = 0x80; + printk(KERN_DEBUG "%s: Write_hfc: B1_SSL/RSL 0x%x\n", + __func__, slot); + Write_hfc(hc, HFCPCI_B1_SSL, slot); + Write_hfc(hc, HFCPCI_B1_RSL, slot); + hc->hw.conn = (hc->hw.conn & ~7) | 6; + Write_hfc(hc, HFCPCI_CONNECT, hc->hw.conn); + } + if (cq->channel & 2) { + if (test_bit(HFC_CFG_SW_DD_DU, &hc->cfg)) + slot = 0xC1; + else + slot = 0x81; + printk(KERN_DEBUG "%s: Write_hfc: B2_SSL/RSL 0x%x\n", + __func__, slot); + Write_hfc(hc, HFCPCI_B2_SSL, slot); + Write_hfc(hc, HFCPCI_B2_RSL, slot); + hc->hw.conn = (hc->hw.conn & ~0x38) | 0x30; + Write_hfc(hc, HFCPCI_CONNECT, hc->hw.conn); + } + if (cq->channel & 3) + hc->hw.trm |= 0x80; /* enable IOM-loop */ + else { + hc->hw.conn = (hc->hw.conn & ~0x3f) | 0x09; + Write_hfc(hc, HFCPCI_CONNECT, hc->hw.conn); + hc->hw.trm &= 0x7f; /* disable IOM-loop */ + } + Write_hfc(hc, HFCPCI_TRM, hc->hw.trm); + break; + case MISDN_CTRL_CONNECT: + if (cq->channel == cq->p1) { + ret = -EINVAL; + break; + } + if (cq->channel < 1 || cq->channel > 2 || + cq->p1 < 1 || cq->p1 > 2) { + ret = -EINVAL; + break; + } + if (test_bit(HFC_CFG_SW_DD_DU, &hc->cfg)) + slot = 0xC0; + else + slot = 0x80; + printk(KERN_DEBUG "%s: Write_hfc: B1_SSL/RSL 0x%x\n", + __func__, slot); + Write_hfc(hc, HFCPCI_B1_SSL, slot); + Write_hfc(hc, HFCPCI_B2_RSL, slot); + if (test_bit(HFC_CFG_SW_DD_DU, &hc->cfg)) + slot = 0xC1; + else + slot = 0x81; + printk(KERN_DEBUG "%s: Write_hfc: B2_SSL/RSL 0x%x\n", + __func__, slot); + Write_hfc(hc, HFCPCI_B2_SSL, slot); + Write_hfc(hc, HFCPCI_B1_RSL, slot); + hc->hw.conn = (hc->hw.conn & ~0x3f) | 0x36; + Write_hfc(hc, HFCPCI_CONNECT, hc->hw.conn); + hc->hw.trm |= 0x80; + Write_hfc(hc, HFCPCI_TRM, hc->hw.trm); + break; + case MISDN_CTRL_DISCONNECT: + hc->hw.conn = (hc->hw.conn & ~0x3f) | 0x09; + Write_hfc(hc, HFCPCI_CONNECT, hc->hw.conn); + hc->hw.trm &= 0x7f; /* disable IOM-loop */ + break; + default: + printk(KERN_WARNING "%s: unknown Op %x\n", + __func__, cq->op); + ret = -EINVAL; + break; + } + return ret; +} + +static int +open_dchannel(struct hfc_pci *hc, struct mISDNchannel *ch, + struct channel_req *rq) +{ + int err = 0; + + if (debug & DEBUG_HW_OPEN) + printk(KERN_DEBUG "%s: dev(%d) open from %p\n", __func__, + hc->dch.dev.id, __builtin_return_address(0)); + if (rq->protocol == ISDN_P_NONE) + return -EINVAL; + if (!hc->initdone) { + if (rq->protocol == ISDN_P_TE_S0) { + err = create_l1(&hc->dch, hfc_l1callback); + if (err) + return err; + } + hc->hw.protocol = rq->protocol; + ch->protocol = rq->protocol; + err = init_card(hc); + if (err) + return err; + } else { + if (rq->protocol != ch->protocol) { + if (hc->hw.protocol == ISDN_P_TE_S0) + l1_event(hc->dch.l1, CLOSE_CHANNEL); + hc->hw.protocol = rq->protocol; + ch->protocol = rq->protocol; + hfcpci_setmode(hc); + } + } + + if (((ch->protocol == ISDN_P_NT_S0) && (hc->dch.state == 3)) || + ((ch->protocol == ISDN_P_TE_S0) && (hc->dch.state == 7))) { + _queue_data(ch, PH_ACTIVATE_IND, MISDN_ID_ANY, + 0, NULL, GFP_KERNEL); + } + rq->ch = ch; + if (!try_module_get(THIS_MODULE)) + printk(KERN_WARNING "%s:cannot get module\n", __func__); + return 0; +} + +static int +open_bchannel(struct hfc_pci *hc, struct channel_req *rq) +{ + struct bchannel *bch; + + if (rq->adr.channel > 2) + return -EINVAL; + if (rq->protocol == ISDN_P_NONE) + return -EINVAL; + bch = &hc->bch[rq->adr.channel - 1]; + if (test_and_set_bit(FLG_OPEN, &bch->Flags)) + return -EBUSY; /* b-channel can be only open once */ + bch->ch.protocol = rq->protocol; + rq->ch = &bch->ch; /* TODO: E-channel */ + if (!try_module_get(THIS_MODULE)) + printk(KERN_WARNING "%s:cannot get module\n", __func__); + return 0; +} + +/* + * device control function + */ +static int +hfc_dctrl(struct mISDNchannel *ch, u_int cmd, void *arg) +{ + struct mISDNdevice *dev = container_of(ch, struct mISDNdevice, D); + struct dchannel *dch = container_of(dev, struct dchannel, dev); + struct hfc_pci *hc = dch->hw; + struct channel_req *rq; + int err = 0; + + if (dch->debug & DEBUG_HW) + printk(KERN_DEBUG "%s: cmd:%x %p\n", + __func__, cmd, arg); + switch (cmd) { + case OPEN_CHANNEL: + rq = arg; + if (rq->adr.channel == 0) + err = open_dchannel(hc, ch, rq); + else + err = open_bchannel(hc, rq); + break; + case CLOSE_CHANNEL: + if (debug & DEBUG_HW_OPEN) + printk(KERN_DEBUG "%s: dev(%d) close from %p\n", + __func__, hc->dch.dev.id, + __builtin_return_address(0)); + module_put(THIS_MODULE); + break; + case CONTROL_CHANNEL: + err = channel_ctrl(hc, arg); + break; + default: + if (dch->debug & DEBUG_HW) + printk(KERN_DEBUG "%s: unknown command %x\n", + __func__, cmd); + return -EINVAL; + } + return err; +} + +static int +setup_hw(struct hfc_pci *hc) +{ + void *buffer; + + printk(KERN_INFO "mISDN: HFC-PCI driver %s\n", hfcpci_revision); + hc->hw.cirm = 0; + hc->dch.state = 0; + pci_set_master(hc->pdev); + if (!hc->irq) { + printk(KERN_WARNING "HFC-PCI: No IRQ for PCI card found\n"); + return 1; + } + hc->hw.pci_io = (char *)(ulong)hc->pdev->resource[1].start; + + if (!hc->hw.pci_io) { + printk(KERN_WARNING "HFC-PCI: No IO-Mem for PCI card found\n"); + return 1; + } + /* Allocate memory for FIFOS */ + /* the memory needs to be on a 32k boundary within the first 4G */ + pci_set_dma_mask(hc->pdev, 0xFFFF8000); + buffer = pci_alloc_consistent(hc->pdev, 0x8000, &hc->hw.dmahandle); + /* We silently assume the address is okay if nonzero */ + if (!buffer) { + printk(KERN_WARNING + "HFC-PCI: Error allocating memory for FIFO!\n"); + return 1; + } + hc->hw.fifos = buffer; + pci_write_config_dword(hc->pdev, 0x80, hc->hw.dmahandle); + hc->hw.pci_io = ioremap((ulong) hc->hw.pci_io, 256); + printk(KERN_INFO + "HFC-PCI: defined at mem %#lx fifo %#lx(%#lx) IRQ %d HZ %d\n", + (u_long) hc->hw.pci_io, (u_long) hc->hw.fifos, + (u_long) virt_to_bus(hc->hw.fifos), + hc->irq, HZ); + /* enable memory mapped ports, disable busmaster */ + pci_write_config_word(hc->pdev, PCI_COMMAND, PCI_ENA_MEMIO); + hc->hw.int_m2 = 0; + disable_hwirq(hc); + hc->hw.int_m1 = 0; + Write_hfc(hc, HFCPCI_INT_M1, hc->hw.int_m1); + /* At this point the needed PCI config is done */ + /* fifos are still not enabled */ + hc->hw.timer.function = (void *) hfcpci_Timer; + hc->hw.timer.data = (long) hc; + init_timer(&hc->hw.timer); + /* default PCM master */ + test_and_set_bit(HFC_CFG_MASTER, &hc->cfg); + return 0; +} + +static void +release_card(struct hfc_pci *hc) { + u_long flags; + + spin_lock_irqsave(&hc->lock, flags); + hc->hw.int_m2 = 0; /* interrupt output off ! */ + disable_hwirq(hc); + mode_hfcpci(&hc->bch[0], 1, ISDN_P_NONE); + mode_hfcpci(&hc->bch[1], 2, ISDN_P_NONE); + if (hc->dch.timer.function != NULL) { + del_timer(&hc->dch.timer); + hc->dch.timer.function = NULL; + } + spin_unlock_irqrestore(&hc->lock, flags); + if (hc->hw.protocol == ISDN_P_TE_S0) + l1_event(hc->dch.l1, CLOSE_CHANNEL); + if (hc->initdone) + free_irq(hc->irq, hc); + release_io_hfcpci(hc); /* must release after free_irq! */ + mISDN_unregister_device(&hc->dch.dev); + mISDN_freebchannel(&hc->bch[1]); + mISDN_freebchannel(&hc->bch[0]); + mISDN_freedchannel(&hc->dch); + list_del(&hc->list); + pci_set_drvdata(hc->pdev, NULL); + kfree(hc); +} + +static int +setup_card(struct hfc_pci *card) +{ + int err = -EINVAL; + u_int i; + u_long flags; + char name[MISDN_MAX_IDLEN]; + + if (HFC_cnt >= MAX_CARDS) + return -EINVAL; /* maybe better value */ + + card->dch.debug = debug; + spin_lock_init(&card->lock); + mISDN_initdchannel(&card->dch, MAX_DFRAME_LEN_L1, ph_state); + card->dch.hw = card; + card->dch.dev.Dprotocols = (1 << ISDN_P_TE_S0) | (1 << ISDN_P_NT_S0); + card->dch.dev.Bprotocols = (1 << (ISDN_P_B_RAW & ISDN_P_B_MASK)) | + (1 << (ISDN_P_B_HDLC & ISDN_P_B_MASK)); + card->dch.dev.D.send = hfcpci_l2l1D; + card->dch.dev.D.ctrl = hfc_dctrl; + card->dch.dev.nrbchan = 2; + for (i = 0; i < 2; i++) { + card->bch[i].nr = i + 1; + test_and_set_bit(i + 1, &card->dch.dev.channelmap[0]); + card->bch[i].debug = debug; + mISDN_initbchannel(&card->bch[i], MAX_DATA_MEM); + card->bch[i].hw = card; + card->bch[i].ch.send = hfcpci_l2l1B; + card->bch[i].ch.ctrl = hfc_bctrl; + card->bch[i].ch.nr = i + 1; + list_add(&card->bch[i].ch.list, &card->dch.dev.bchannels); + } + err = setup_hw(card); + if (err) + goto error; + snprintf(name, MISDN_MAX_IDLEN - 1, "hfc-pci.%d", HFC_cnt + 1); + err = mISDN_register_device(&card->dch.dev, name); + if (err) + goto error; + HFC_cnt++; + write_lock_irqsave(&HFClock, flags); + list_add_tail(&card->list, &HFClist); + write_unlock_irqrestore(&HFClock, flags); + printk(KERN_INFO "HFC %d cards installed\n", HFC_cnt); + return 0; +error: + mISDN_freebchannel(&card->bch[1]); + mISDN_freebchannel(&card->bch[0]); + mISDN_freedchannel(&card->dch); + kfree(card); + return err; +} + +/* private data in the PCI devices list */ +struct _hfc_map { + u_int subtype; + u_int flag; + char *name; +}; + +static const struct _hfc_map hfc_map[] = +{ + {HFC_CCD_2BD0, 0, "CCD/Billion/Asuscom 2BD0"}, + {HFC_CCD_B000, 0, "Billion B000"}, + {HFC_CCD_B006, 0, "Billion B006"}, + {HFC_CCD_B007, 0, "Billion B007"}, + {HFC_CCD_B008, 0, "Billion B008"}, + {HFC_CCD_B009, 0, "Billion B009"}, + {HFC_CCD_B00A, 0, "Billion B00A"}, + {HFC_CCD_B00B, 0, "Billion B00B"}, + {HFC_CCD_B00C, 0, "Billion B00C"}, + {HFC_CCD_B100, 0, "Seyeon B100"}, + {HFC_CCD_B700, 0, "Primux II S0 B700"}, + {HFC_CCD_B701, 0, "Primux II S0 NT B701"}, + {HFC_ABOCOM_2BD1, 0, "Abocom/Magitek 2BD1"}, + {HFC_ASUS_0675, 0, "Asuscom/Askey 675"}, + {HFC_BERKOM_TCONCEPT, 0, "German telekom T-Concept"}, + {HFC_BERKOM_A1T, 0, "German telekom A1T"}, + {HFC_ANIGMA_MC145575, 0, "Motorola MC145575"}, + {HFC_ZOLTRIX_2BD0, 0, "Zoltrix 2BD0"}, + {HFC_DIGI_DF_M_IOM2_E, 0, + "Digi International DataFire Micro V IOM2 (Europe)"}, + {HFC_DIGI_DF_M_E, 0, + "Digi International DataFire Micro V (Europe)"}, + {HFC_DIGI_DF_M_IOM2_A, 0, + "Digi International DataFire Micro V IOM2 (North America)"}, + {HFC_DIGI_DF_M_A, 0, + "Digi International DataFire Micro V (North America)"}, + {HFC_SITECOM_DC105V2, 0, "Sitecom Connectivity DC-105 ISDN TA"}, + {}, +}; + +static struct pci_device_id hfc_ids[] = +{ + {PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_2BD0, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[0]}, + {PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_B000, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[1]}, + {PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_B006, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[2]}, + {PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_B007, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[3]}, + {PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_B008, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[4]}, + {PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_B009, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[5]}, + {PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_B00A, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[6]}, + {PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_B00B, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[7]}, + {PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_B00C, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[8]}, + {PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_B100, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[9]}, + {PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_B700, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[10]}, + {PCI_VENDOR_ID_CCD, PCI_DEVICE_ID_CCD_B701, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[11]}, + {PCI_VENDOR_ID_ABOCOM, PCI_DEVICE_ID_ABOCOM_2BD1, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[12]}, + {PCI_VENDOR_ID_ASUSTEK, PCI_DEVICE_ID_ASUSTEK_0675, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[13]}, + {PCI_VENDOR_ID_BERKOM, PCI_DEVICE_ID_BERKOM_T_CONCEPT, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[14]}, + {PCI_VENDOR_ID_BERKOM, PCI_DEVICE_ID_BERKOM_A1T, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[15]}, + {PCI_VENDOR_ID_ANIGMA, PCI_DEVICE_ID_ANIGMA_MC145575, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[16]}, + {PCI_VENDOR_ID_ZOLTRIX, PCI_DEVICE_ID_ZOLTRIX_2BD0, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[17]}, + {PCI_VENDOR_ID_DIGI, PCI_DEVICE_ID_DIGI_DF_M_IOM2_E, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[18]}, + {PCI_VENDOR_ID_DIGI, PCI_DEVICE_ID_DIGI_DF_M_E, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[19]}, + {PCI_VENDOR_ID_DIGI, PCI_DEVICE_ID_DIGI_DF_M_IOM2_A, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[20]}, + {PCI_VENDOR_ID_DIGI, PCI_DEVICE_ID_DIGI_DF_M_A, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[21]}, + {PCI_VENDOR_ID_SITECOM, PCI_DEVICE_ID_SITECOM_DC105V2, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, (unsigned long) &hfc_map[22]}, + {}, +}; + +static int __devinit +hfc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) +{ + int err = -ENOMEM; + struct hfc_pci *card; + struct _hfc_map *m = (struct _hfc_map *)ent->driver_data; + + card = kzalloc(sizeof(struct hfc_pci), GFP_ATOMIC); + if (!card) { + printk(KERN_ERR "No kmem for HFC card\n"); + return err; + } + card->pdev = pdev; + card->subtype = m->subtype; + err = pci_enable_device(pdev); + if (err) { + kfree(card); + return err; + } + + printk(KERN_INFO "mISDN_hfcpci: found adapter %s at %s\n", + m->name, pci_name(pdev)); + + card->irq = pdev->irq; + pci_set_drvdata(pdev, card); + err = setup_card(card); + if (err) + pci_set_drvdata(pdev, NULL); + return err; +} + +static void __devexit +hfc_remove_pci(struct pci_dev *pdev) +{ + struct hfc_pci *card = pci_get_drvdata(pdev); + u_long flags; + + if (card) { + write_lock_irqsave(&HFClock, flags); + release_card(card); + write_unlock_irqrestore(&HFClock, flags); + } else + if (debug) + printk(KERN_WARNING "%s: drvdata allready removed\n", + __func__); +} + + +static struct pci_driver hfc_driver = { + .name = "hfcpci", + .probe = hfc_probe, + .remove = __devexit_p(hfc_remove_pci), + .id_table = hfc_ids, +}; + +static int __init +HFC_init(void) +{ + int err; + + err = pci_register_driver(&hfc_driver); + return err; +} + +static void __exit +HFC_cleanup(void) +{ + struct hfc_pci *card, *next; + + list_for_each_entry_safe(card, next, &HFClist, list) { + release_card(card); + } + pci_unregister_driver(&hfc_driver); +} + +module_init(HFC_init); +module_exit(HFC_cleanup); diff --git a/drivers/isdn/hisax/hisax_fcpcipnp.c b/drivers/isdn/hisax/hisax_fcpcipnp.c index c0b4db2..1925118 100644 --- a/drivers/isdn/hisax/hisax_fcpcipnp.c +++ b/drivers/isdn/hisax/hisax_fcpcipnp.c @@ -974,8 +974,6 @@ static struct pnp_driver fcpnp_driver = { .remove = __devexit_p(fcpnp_remove), .id_table = fcpnp_ids, }; -#else -static struct pnp_driver fcpnp_driver; #endif static void __devexit fcpci_remove(struct pci_dev *pdev) diff --git a/drivers/isdn/hisax/st5481.h b/drivers/isdn/hisax/st5481.h index 2044e71..cff7a63 100644 --- a/drivers/isdn/hisax/st5481.h +++ b/drivers/isdn/hisax/st5481.h @@ -220,7 +220,7 @@ enum { #define ERR(format, arg...) \ printk(KERN_ERR "%s:%s: " format "\n" , __FILE__, __func__ , ## arg) -#define WARN(format, arg...) \ +#define WARNING(format, arg...) \ printk(KERN_WARNING "%s:%s: " format "\n" , __FILE__, __func__ , ## arg) #define INFO(format, arg...) \ @@ -412,7 +412,7 @@ struct st5481_adapter { ({ \ int status; \ if ((status = usb_submit_urb(urb, mem_flags)) < 0) { \ - WARN("usb_submit_urb failed,status=%d", status); \ + WARNING("usb_submit_urb failed,status=%d", status); \ } \ status; \ }) diff --git a/drivers/isdn/hisax/st5481_b.c b/drivers/isdn/hisax/st5481_b.c index fa64115..0074b60 100644 --- a/drivers/isdn/hisax/st5481_b.c +++ b/drivers/isdn/hisax/st5481_b.c @@ -180,7 +180,7 @@ static void usb_b_out_complete(struct urb *urb) DBG(4,"urb killed status %d", urb->status); return; // Give up default: - WARN("urb status %d",urb->status); + WARNING("urb status %d",urb->status); if (b_out->busy == 0) { st5481_usb_pipe_reset(adapter, (bcs->channel+1)*2 | USB_DIR_OUT, NULL, NULL); } @@ -372,6 +372,6 @@ void st5481_b_l2l1(struct hisax_if *ifc, int pr, void *arg) B_L1L2(bcs, PH_DEACTIVATE | INDICATION, NULL); break; default: - WARN("pr %#x\n", pr); + WARNING("pr %#x\n", pr); } } diff --git a/drivers/isdn/hisax/st5481_d.c b/drivers/isdn/hisax/st5481_d.c index b8c4855..077991c 100644 --- a/drivers/isdn/hisax/st5481_d.c +++ b/drivers/isdn/hisax/st5481_d.c @@ -389,7 +389,7 @@ static void usb_d_out_complete(struct urb *urb) DBG(1,"urb killed status %d", urb->status); break; default: - WARN("urb status %d",urb->status); + WARNING("urb status %d",urb->status); if (d_out->busy == 0) { st5481_usb_pipe_reset(adapter, EP_D_OUT | USB_DIR_OUT, fifo_reseted, adapter); } @@ -420,7 +420,7 @@ static void dout_start_xmit(struct FsmInst *fsm, int event, void *arg) isdnhdlc_out_init(&d_out->hdlc_state, 1, 0); if (test_and_set_bit(buf_nr, &d_out->busy)) { - WARN("ep %d urb %d busy %#lx", EP_D_OUT, buf_nr, d_out->busy); + WARNING("ep %d urb %d busy %#lx", EP_D_OUT, buf_nr, d_out->busy); return; } urb = d_out->urb[buf_nr]; @@ -601,7 +601,7 @@ void st5481_d_l2l1(struct hisax_if *hisax_d_if, int pr, void *arg) FsmEvent(&adapter->d_out.fsm, EV_DOUT_START_XMIT, NULL); break; default: - WARN("pr %#x\n", pr); + WARNING("pr %#x\n", pr); break; } } diff --git a/drivers/isdn/hisax/st5481_usb.c b/drivers/isdn/hisax/st5481_usb.c index 427a8b0..ec3c0e5 100644 --- a/drivers/isdn/hisax/st5481_usb.c +++ b/drivers/isdn/hisax/st5481_usb.c @@ -66,7 +66,7 @@ static void usb_ctrl_msg(struct st5481_adapter *adapter, struct ctrl_msg *ctrl_msg; if ((w_index = fifo_add(&ctrl->msg_fifo.f)) < 0) { - WARN("control msg FIFO full"); + WARNING("control msg FIFO full"); return; } ctrl_msg = &ctrl->msg_fifo.data[w_index]; @@ -139,7 +139,7 @@ static void usb_ctrl_complete(struct urb *urb) DBG(1,"urb killed status %d", urb->status); return; // Give up default: - WARN("urb status %d",urb->status); + WARNING("urb status %d",urb->status); break; } } @@ -198,7 +198,7 @@ static void usb_int_complete(struct urb *urb) DBG(2, "urb shutting down with status: %d", urb->status); return; default: - WARN("nonzero urb status received: %d", urb->status); + WARNING("nonzero urb status received: %d", urb->status); goto exit; } @@ -235,7 +235,7 @@ static void usb_int_complete(struct urb *urb) exit: status = usb_submit_urb (urb, GFP_ATOMIC); if (status) - WARN("usb_submit_urb failed with result %d", status); + WARNING("usb_submit_urb failed with result %d", status); } /* ====================================================================== @@ -257,7 +257,7 @@ int st5481_setup_usb(struct st5481_adapter *adapter) DBG(2,""); if ((status = usb_reset_configuration (dev)) < 0) { - WARN("reset_configuration failed,status=%d",status); + WARNING("reset_configuration failed,status=%d",status); return status; } @@ -269,7 +269,7 @@ int st5481_setup_usb(struct st5481_adapter *adapter) // Check if the config is sane if ( altsetting->desc.bNumEndpoints != 7 ) { - WARN("expecting 7 got %d endpoints!", altsetting->desc.bNumEndpoints); + WARNING("expecting 7 got %d endpoints!", altsetting->desc.bNumEndpoints); return -EINVAL; } @@ -279,7 +279,7 @@ int st5481_setup_usb(struct st5481_adapter *adapter) // Use alternative setting 3 on interface 0 to have 2B+D if ((status = usb_set_interface (dev, 0, 3)) < 0) { - WARN("usb_set_interface failed,status=%d",status); + WARNING("usb_set_interface failed,status=%d",status); return status; } @@ -497,7 +497,7 @@ static void usb_in_complete(struct urb *urb) DBG(1,"urb killed status %d", urb->status); return; // Give up default: - WARN("urb status %d",urb->status); + WARNING("urb status %d",urb->status); break; } } @@ -523,7 +523,7 @@ static void usb_in_complete(struct urb *urb) DBG(4,"count=%d",status); DBG_PACKET(0x400, in->rcvbuf, status); if (!(skb = dev_alloc_skb(status))) { - WARN("receive out of memory\n"); + WARNING("receive out of memory\n"); break; } memcpy(skb_put(skb, status), in->rcvbuf, status); diff --git a/drivers/isdn/mISDN/Kconfig b/drivers/isdn/mISDN/Kconfig new file mode 100644 index 0000000..4938355 --- /dev/null +++ b/drivers/isdn/mISDN/Kconfig @@ -0,0 +1,44 @@ +# +# modularer ISDN driver +# + +menuconfig MISDN + tristate "Modular ISDN driver" + help + Enable support for the modular ISDN driver. + +if MISDN != n + +config MISDN_DSP + tristate "Digital Audio Processing of transparent data" + depends on MISDN + help + Enable support for digital audio processing capability. + This module may be used for special applications that require + cross connecting of bchannels, conferencing, dtmf decoding + echo cancelation, tone generation, and Blowfish encryption and + decryption. + It may use hardware features if available. + E.g. it is required for PBX4Linux. Go to http://isdn.eversberg.eu + and get more informations about this module and it's usage. + If unsure, say 'N'. + +config MISDN_L1OIP + tristate "ISDN over IP tunnel" + depends on MISDN + help + Enable support for ISDN over IP tunnel. + + It features: + - dynamic IP exchange, if one or both peers have dynamic IPs + - BRI (S0) and PRI (S2M) interface + - layer 1 control via network keepalive frames + - direct tunneling of physical interface via IP + + NOTE: This protocol is called 'Layer 1 over IP' and is not + compatible with ISDNoIP (Agfeo) or TDMoIP. Protocol description is + provided in the source code. + +source "drivers/isdn/hardware/mISDN/Kconfig" + +endif #MISDN diff --git a/drivers/isdn/mISDN/Makefile b/drivers/isdn/mISDN/Makefile new file mode 100644 index 0000000..1cb5e63 --- /dev/null +++ b/drivers/isdn/mISDN/Makefile @@ -0,0 +1,13 @@ +# +# Makefile for the modular ISDN driver +# + +obj-$(CONFIG_MISDN) += mISDN_core.o +obj-$(CONFIG_MISDN_DSP) += mISDN_dsp.o +obj-$(CONFIG_MISDN_L1OIP) += l1oip.o + +# multi objects + +mISDN_core-objs := core.o fsm.o socket.o hwchannel.o stack.o layer1.o layer2.o tei.o timerdev.o +mISDN_dsp-objs := dsp_core.o dsp_cmx.o dsp_tones.o dsp_dtmf.o dsp_audio.o dsp_blowfish.o dsp_pipeline.o dsp_hwec.o +l1oip-objs := l1oip_core.o l1oip_codec.o diff --git a/drivers/isdn/mISDN/core.c b/drivers/isdn/mISDN/core.c new file mode 100644 index 0000000..3306817 --- /dev/null +++ b/drivers/isdn/mISDN/core.c @@ -0,0 +1,244 @@ +/* + * Copyright 2008 by Karsten Keil <kkeil@novell.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <linux/types.h> +#include <linux/stddef.h> +#include <linux/module.h> +#include <linux/spinlock.h> +#include <linux/mISDNif.h> +#include "core.h" + +static u_int debug; + +MODULE_AUTHOR("Karsten Keil"); +MODULE_LICENSE("GPL"); +module_param(debug, uint, S_IRUGO | S_IWUSR); + +static LIST_HEAD(devices); +DEFINE_RWLOCK(device_lock); +static u64 device_ids; +#define MAX_DEVICE_ID 63 + +static LIST_HEAD(Bprotocols); +DEFINE_RWLOCK(bp_lock); + +struct mISDNdevice +*get_mdevice(u_int id) +{ + struct mISDNdevice *dev; + + read_lock(&device_lock); + list_for_each_entry(dev, &devices, D.list) + if (dev->id == id) { + read_unlock(&device_lock); + return dev; + } + read_unlock(&device_lock); + return NULL; +} + +int +get_mdevice_count(void) +{ + struct mISDNdevice *dev; + int cnt = 0; + + read_lock(&device_lock); + list_for_each_entry(dev, &devices, D.list) + cnt++; + read_unlock(&device_lock); + return cnt; +} + +static int +get_free_devid(void) +{ + u_int i; + + for (i = 0; i <= MAX_DEVICE_ID; i++) + if (!test_and_set_bit(i, (u_long *)&device_ids)) + return i; + return -1; +} + +int +mISDN_register_device(struct mISDNdevice *dev, char *name) +{ + u_long flags; + int err; + + dev->id = get_free_devid(); + if (dev->id < 0) + return -EBUSY; + if (name && name[0]) + strcpy(dev->name, name); + else + sprintf(dev->name, "mISDN%d", dev->id); + if (debug & DEBUG_CORE) + printk(KERN_DEBUG "mISDN_register %s %d\n", + dev->name, dev->id); + err = create_stack(dev); + if (err) + return err; + write_lock_irqsave(&device_lock, flags); + list_add_tail(&dev->D.list, &devices); + write_unlock_irqrestore(&device_lock, flags); + return 0; +} +EXPORT_SYMBOL(mISDN_register_device); + +void +mISDN_unregister_device(struct mISDNdevice *dev) { + u_long flags; + + if (debug & DEBUG_CORE) + printk(KERN_DEBUG "mISDN_unregister %s %d\n", + dev->name, dev->id); + write_lock_irqsave(&device_lock, flags); + list_del(&dev->D.list); + write_unlock_irqrestore(&device_lock, flags); + test_and_clear_bit(dev->id, (u_long *)&device_ids); + delete_stack(dev); +} +EXPORT_SYMBOL(mISDN_unregister_device); + +u_int +get_all_Bprotocols(void) +{ + struct Bprotocol *bp; + u_int m = 0; + + read_lock(&bp_lock); + list_for_each_entry(bp, &Bprotocols, list) + m |= bp->Bprotocols; + read_unlock(&bp_lock); + return m; +} + +struct Bprotocol * +get_Bprotocol4mask(u_int m) +{ + struct Bprotocol *bp; + + read_lock(&bp_lock); + list_for_each_entry(bp, &Bprotocols, list) + if (bp->Bprotocols & m) { + read_unlock(&bp_lock); + return bp; + } + read_unlock(&bp_lock); + return NULL; +} + +struct Bprotocol * +get_Bprotocol4id(u_int id) +{ + u_int m; + + if (id < ISDN_P_B_START || id > 63) { + printk(KERN_WARNING "%s id not in range %d\n", + __func__, id); + return NULL; + } + m = 1 << (id & ISDN_P_B_MASK); + return get_Bprotocol4mask(m); +} + +int +mISDN_register_Bprotocol(struct Bprotocol *bp) +{ + u_long flags; + struct Bprotocol *old; + + if (debug & DEBUG_CORE) + printk(KERN_DEBUG "%s: %s/%x\n", __func__, + bp->name, bp->Bprotocols); + old = get_Bprotocol4mask(bp->Bprotocols); + if (old) { + printk(KERN_WARNING + "register duplicate protocol old %s/%x new %s/%x\n", + old->name, old->Bprotocols, bp->name, bp->Bprotocols); + return -EBUSY; + } + write_lock_irqsave(&bp_lock, flags); + list_add_tail(&bp->list, &Bprotocols); + write_unlock_irqrestore(&bp_lock, flags); + return 0; +} +EXPORT_SYMBOL(mISDN_register_Bprotocol); + +void +mISDN_unregister_Bprotocol(struct Bprotocol *bp) +{ + u_long flags; + + if (debug & DEBUG_CORE) + printk(KERN_DEBUG "%s: %s/%x\n", __func__, bp->name, + bp->Bprotocols); + write_lock_irqsave(&bp_lock, flags); + list_del(&bp->list); + write_unlock_irqrestore(&bp_lock, flags); +} +EXPORT_SYMBOL(mISDN_unregister_Bprotocol); + +int +mISDNInit(void) +{ + int err; + + printk(KERN_INFO "Modular ISDN core version %d.%d.%d\n", + MISDN_MAJOR_VERSION, MISDN_MINOR_VERSION, MISDN_RELEASE); + mISDN_initstack(&debug); + err = mISDN_inittimer(&debug); + if (err) + goto error; + err = l1_init(&debug); + if (err) { + mISDN_timer_cleanup(); + goto error; + } + err = Isdnl2_Init(&debug); + if (err) { + mISDN_timer_cleanup(); + l1_cleanup(); + goto error; + } + err = misdn_sock_init(&debug); + if (err) { + mISDN_timer_cleanup(); + l1_cleanup(); + Isdnl2_cleanup(); + } +error: + return err; +} + +void mISDN_cleanup(void) +{ + misdn_sock_cleanup(); + mISDN_timer_cleanup(); + l1_cleanup(); + Isdnl2_cleanup(); + + if (!list_empty(&devices)) + printk(KERN_ERR "%s devices still registered\n", __func__); + + if (!list_empty(&Bprotocols)) + printk(KERN_ERR "%s Bprotocols still registered\n", __func__); + printk(KERN_DEBUG "mISDNcore unloaded\n"); +} + +module_init(mISDNInit); +module_exit(mISDN_cleanup); + diff --git a/drivers/isdn/mISDN/core.h b/drivers/isdn/mISDN/core.h new file mode 100644 index 0000000..7da7233 --- /dev/null +++ b/drivers/isdn/mISDN/core.h @@ -0,0 +1,77 @@ +/* + * Copyright 2008 by Karsten Keil <kkeil@novell.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef mISDN_CORE_H +#define mISDN_CORE_H + +extern struct mISDNdevice *get_mdevice(u_int); +extern int get_mdevice_count(void); + +/* stack status flag */ +#define mISDN_STACK_ACTION_MASK 0x0000ffff +#define mISDN_STACK_COMMAND_MASK 0x000f0000 +#define mISDN_STACK_STATUS_MASK 0xfff00000 +/* action bits 0-15 */ +#define mISDN_STACK_WORK 0 +#define mISDN_STACK_SETUP 1 +#define mISDN_STACK_CLEARING 2 +#define mISDN_STACK_RESTART 3 +#define mISDN_STACK_WAKEUP 4 +#define mISDN_STACK_ABORT 15 +/* command bits 16-19 */ +#define mISDN_STACK_STOPPED 16 +#define mISDN_STACK_INIT 17 +#define mISDN_STACK_THREADSTART 18 +/* status bits 20-31 */ +#define mISDN_STACK_BCHANNEL 20 +#define mISDN_STACK_ACTIVE 29 +#define mISDN_STACK_RUNNING 30 +#define mISDN_STACK_KILLED 31 + + +/* manager options */ +#define MGR_OPT_USER 24 +#define MGR_OPT_NETWORK 25 + +extern int connect_Bstack(struct mISDNdevice *, struct mISDNchannel *, + u_int, struct sockaddr_mISDN *); +extern int connect_layer1(struct mISDNdevice *, struct mISDNchannel *, + u_int, struct sockaddr_mISDN *); +extern int create_l2entity(struct mISDNdevice *, struct mISDNchannel *, + u_int, struct sockaddr_mISDN *); + +extern int create_stack(struct mISDNdevice *); +extern int create_teimanager(struct mISDNdevice *); +extern void delete_teimanager(struct mISDNchannel *); +extern void delete_channel(struct mISDNchannel *); +extern void delete_stack(struct mISDNdevice *); +extern void mISDN_initstack(u_int *); +extern int misdn_sock_init(u_int *); +extern void misdn_sock_cleanup(void); +extern void add_layer2(struct mISDNchannel *, struct mISDNstack *); +extern void __add_layer2(struct mISDNchannel *, struct mISDNstack *); + +extern u_int get_all_Bprotocols(void); +struct Bprotocol *get_Bprotocol4mask(u_int); +struct Bprotocol *get_Bprotocol4id(u_int); + +extern int mISDN_inittimer(u_int *); +extern void mISDN_timer_cleanup(void); + +extern int l1_init(u_int *); +extern void l1_cleanup(void); +extern int Isdnl2_Init(u_int *); +extern void Isdnl2_cleanup(void); + +#endif diff --git a/drivers/isdn/mISDN/dsp.h b/drivers/isdn/mISDN/dsp.h new file mode 100644 index 0000000..6c3fed6 --- /dev/null +++ b/drivers/isdn/mISDN/dsp.h @@ -0,0 +1,263 @@ +/* + * Audio support data for ISDN4Linux. + * + * Copyright 2002/2003 by Andreas Eversberg (jolly@eversberg.eu) + * + * This software may be used and distributed according to the terms + * of the GNU General Public License, incorporated herein by reference. + * + */ + +#define DEBUG_DSP_CTRL 0x0001 +#define DEBUG_DSP_CORE 0x0002 +#define DEBUG_DSP_DTMF 0x0004 +#define DEBUG_DSP_CMX 0x0010 +#define DEBUG_DSP_TONE 0x0020 +#define DEBUG_DSP_BLOWFISH 0x0040 +#define DEBUG_DSP_DELAY 0x0100 +#define DEBUG_DSP_DTMFCOEFF 0x8000 /* heavy output */ + +/* options may be: + * + * bit 0 = use ulaw instead of alaw + * bit 1 = enable hfc hardware accelleration for all channels + * + */ +#define DSP_OPT_ULAW (1<<0) +#define DSP_OPT_NOHARDWARE (1<<1) + +#include <linux/timer.h> +#include <linux/workqueue.h> + +#include "dsp_ecdis.h" + +extern int dsp_options; +extern int dsp_debug; +extern int dsp_poll; +extern int dsp_tics; +extern spinlock_t dsp_lock; +extern struct work_struct dsp_workq; +extern u32 dsp_poll_diff; /* calculated fix-comma corrected poll value */ + +/*************** + * audio stuff * + ***************/ + +extern s32 dsp_audio_alaw_to_s32[256]; +extern s32 dsp_audio_ulaw_to_s32[256]; +extern s32 *dsp_audio_law_to_s32; +extern u8 dsp_audio_s16_to_law[65536]; +extern u8 dsp_audio_alaw_to_ulaw[256]; +extern u8 dsp_audio_mix_law[65536]; +extern u8 dsp_audio_seven2law[128]; +extern u8 dsp_audio_law2seven[256]; +extern void dsp_audio_generate_law_tables(void); +extern void dsp_audio_generate_s2law_table(void); +extern void dsp_audio_generate_seven(void); +extern void dsp_audio_generate_mix_table(void); +extern void dsp_audio_generate_ulaw_samples(void); +extern void dsp_audio_generate_volume_changes(void); +extern u8 dsp_silence; + + +/************* + * cmx stuff * + *************/ + +#define MAX_POLL 256 /* maximum number of send-chunks */ + +#define CMX_BUFF_SIZE 0x8000 /* must be 2**n (0x1000 about 1/2 second) */ +#define CMX_BUFF_HALF 0x4000 /* CMX_BUFF_SIZE / 2 */ +#define CMX_BUFF_MASK 0x7fff /* CMX_BUFF_SIZE - 1 */ + +/* how many seconds will we check the lowest delay until the jitter buffer + is reduced by that delay */ +#define MAX_SECONDS_JITTER_CHECK 5 + +extern struct timer_list dsp_spl_tl; +extern u32 dsp_spl_jiffies; + +/* the structure of conferences: + * + * each conference has a unique number, given by user space. + * the conferences are linked in a chain. + * each conference has members linked in a chain. + * each dsplayer points to a member, each member points to a dsplayer. + */ + +/* all members within a conference (this is linked 1:1 with the dsp) */ +struct dsp; +struct dsp_conf_member { + struct list_head list; + struct dsp *dsp; +}; + +/* the list of all conferences */ +struct dsp_conf { + struct list_head list; + u32 id; + /* all cmx stacks with the same ID are + connected */ + struct list_head mlist; + int software; /* conf is processed by software */ + int hardware; /* conf is processed by hardware */ + /* note: if both unset, has only one member */ +}; + + +/************** + * DTMF stuff * + **************/ + +#define DSP_DTMF_NPOINTS 102 + +#define ECHOCAN_BUFLEN (4*128) + +struct dsp_dtmf { + int treshold; /* above this is dtmf (square of) */ + int software; /* dtmf uses software decoding */ + int hardware; /* dtmf uses hardware decoding */ + int size; /* number of bytes in buffer */ + signed short buffer[DSP_DTMF_NPOINTS]; + /* buffers one full dtmf frame */ + u8 lastwhat, lastdigit; + int count; + u8 digits[16]; /* just the dtmf result */ +}; + + +/****************** + * pipeline stuff * + ******************/ +struct dsp_pipeline { + rwlock_t lock; + struct list_head list; + int inuse; +}; + +/*************** + * tones stuff * + ***************/ + +struct dsp_tone { + int software; /* tones are generated by software */ + int hardware; /* tones are generated by hardware */ + int tone; + void *pattern; + int count; + int index; + struct timer_list tl; +}; + +/***************** + * general stuff * + *****************/ + +struct dsp { + struct list_head list; + struct mISDNchannel ch; + struct mISDNchannel *up; + unsigned char name[64]; + int b_active; + int echo; /* echo is enabled */ + int rx_disabled; /* what the user wants */ + int rx_is_off; /* what the card is */ + int tx_mix; + struct dsp_tone tone; + struct dsp_dtmf dtmf; + int tx_volume, rx_volume; + + /* queue for sending frames */ + struct work_struct workq; + struct sk_buff_head sendq; + int hdlc; /* if mode is hdlc */ + int data_pending; /* currently an unconfirmed frame */ + + /* conference stuff */ + u32 conf_id; + struct dsp_conf *conf; + struct dsp_conf_member + *member; + + /* buffer stuff */ + int rx_W; /* current write pos for data without timestamp */ + int rx_R; /* current read pos for transmit clock */ + int rx_init; /* if set, pointers will be adjusted first */ + int tx_W; /* current write pos for transmit data */ + int tx_R; /* current read pos for transmit clock */ + int rx_delay[MAX_SECONDS_JITTER_CHECK]; + int tx_delay[MAX_SECONDS_JITTER_CHECK]; + u8 tx_buff[CMX_BUFF_SIZE]; + u8 rx_buff[CMX_BUFF_SIZE]; + int last_tx; /* if set, we transmitted last poll interval */ + int cmx_delay; /* initial delay of buffers, + or 0 for dynamic jitter buffer */ + int tx_dejitter; /* if set, dejitter tx buffer */ + int tx_data; /* enables tx-data of CMX to upper layer */ + + /* hardware stuff */ + struct dsp_features features; + int features_rx_off; /* set if rx_off is featured */ + int pcm_slot_rx; /* current PCM slot (or -1) */ + int pcm_bank_rx; + int pcm_slot_tx; + int pcm_bank_tx; + int hfc_conf; /* unique id of current conference (or -1) */ + + /* encryption stuff */ + int bf_enable; + u32 bf_p[18]; + u32 bf_s[1024]; + int bf_crypt_pos; + u8 bf_data_in[9]; + u8 bf_crypt_out[9]; + int bf_decrypt_in_pos; + int bf_decrypt_out_pos; + u8 bf_crypt_inring[16]; + u8 bf_data_out[9]; + int bf_sync; + + struct dsp_pipeline + pipeline; +}; + +/* functions */ + +extern void dsp_change_volume(struct sk_buff *skb, int volume); + +extern struct list_head dsp_ilist; +extern struct list_head conf_ilist; +extern void dsp_cmx_debug(struct dsp *dsp); +extern void dsp_cmx_hardware(struct dsp_conf *conf, struct dsp *dsp); +extern int dsp_cmx_conf(struct dsp *dsp, u32 conf_id); +extern void dsp_cmx_receive(struct dsp *dsp, struct sk_buff *skb); +extern void dsp_cmx_hdlc(struct dsp *dsp, struct sk_buff *skb); +extern void dsp_cmx_send(void *arg); +extern void dsp_cmx_transmit(struct dsp *dsp, struct sk_buff *skb); +extern int dsp_cmx_del_conf_member(struct dsp *dsp); +extern int dsp_cmx_del_conf(struct dsp_conf *conf); + +extern void dsp_dtmf_goertzel_init(struct dsp *dsp); +extern void dsp_dtmf_hardware(struct dsp *dsp); +extern u8 *dsp_dtmf_goertzel_decode(struct dsp *dsp, u8 *data, int len, + int fmt); + +extern int dsp_tone(struct dsp *dsp, int tone); +extern void dsp_tone_copy(struct dsp *dsp, u8 *data, int len); +extern void dsp_tone_timeout(void *arg); + +extern void dsp_bf_encrypt(struct dsp *dsp, u8 *data, int len); +extern void dsp_bf_decrypt(struct dsp *dsp, u8 *data, int len); +extern int dsp_bf_init(struct dsp *dsp, const u8 *key, unsigned int keylen); +extern void dsp_bf_cleanup(struct dsp *dsp); + +extern int dsp_pipeline_module_init(void); +extern void dsp_pipeline_module_exit(void); +extern int dsp_pipeline_init(struct dsp_pipeline *pipeline); +extern void dsp_pipeline_destroy(struct dsp_pipeline *pipeline); +extern int dsp_pipeline_build(struct dsp_pipeline *pipeline, const char *cfg); +extern void dsp_pipeline_process_tx(struct dsp_pipeline *pipeline, u8 *data, + int len); +extern void dsp_pipeline_process_rx(struct dsp_pipeline *pipeline, u8 *data, + int len); + diff --git a/drivers/isdn/mISDN/dsp_audio.c b/drivers/isdn/mISDN/dsp_audio.c new file mode 100644 index 0000000..1c2dd56 --- /dev/null +++ b/drivers/isdn/mISDN/dsp_audio.c @@ -0,0 +1,434 @@ +/* + * Audio support data for mISDN_dsp. + * + * Copyright 2002/2003 by Andreas Eversberg (jolly@eversberg.eu) + * Rewritten by Peter + * + * This software may be used and distributed according to the terms + * of the GNU General Public License, incorporated herein by reference. + * + */ + +#include <linux/delay.h> +#include <linux/mISDNif.h> +#include <linux/mISDNdsp.h> +#include "core.h" +#include "dsp.h" + +/* ulaw[unsigned char] -> signed 16-bit */ +s32 dsp_audio_ulaw_to_s32[256]; +/* alaw[unsigned char] -> signed 16-bit */ +s32 dsp_audio_alaw_to_s32[256]; + +s32 *dsp_audio_law_to_s32; +EXPORT_SYMBOL(dsp_audio_law_to_s32); + +/* signed 16-bit -> law */ +u8 dsp_audio_s16_to_law[65536]; +EXPORT_SYMBOL(dsp_audio_s16_to_law); + +/* alaw -> ulaw */ +u8 dsp_audio_alaw_to_ulaw[256]; +/* ulaw -> alaw */ +u8 dsp_audio_ulaw_to_alaw[256]; +u8 dsp_silence; + + +/***************************************************** + * generate table for conversion of s16 to alaw/ulaw * + *****************************************************/ + +#define AMI_MASK 0x55 + +static inline unsigned char linear2alaw(short int linear) +{ + int mask; + int seg; + int pcm_val; + static int seg_end[8] = { + 0xFF, 0x1FF, 0x3FF, 0x7FF, 0xFFF, 0x1FFF, 0x3FFF, 0x7FFF + }; + + pcm_val = linear; + if (pcm_val >= 0) { + /* Sign (7th) bit = 1 */ + mask = AMI_MASK | 0x80; + } else { + /* Sign bit = 0 */ + mask = AMI_MASK; + pcm_val = -pcm_val; + } + + /* Convert the scaled magnitude to segment number. */ + for (seg = 0; seg < 8; seg++) { + if (pcm_val <= seg_end[seg]) + break; + } + /* Combine the sign, segment, and quantization bits. */ + return ((seg << 4) | + ((pcm_val >> ((seg) ? (seg + 3) : 4)) & 0x0F)) ^ mask; +} + + +static inline short int alaw2linear(unsigned char alaw) +{ + int i; + int seg; + + alaw ^= AMI_MASK; + i = ((alaw & 0x0F) << 4) + 8 /* rounding error */; + seg = (((int) alaw & 0x70) >> 4); + if (seg) + i = (i + 0x100) << (seg - 1); + return (short int) ((alaw & 0x80) ? i : -i); +} + +static inline short int ulaw2linear(unsigned char ulaw) +{ + short mu, e, f, y; + static short etab[] = {0, 132, 396, 924, 1980, 4092, 8316, 16764}; + + mu = 255 - ulaw; + e = (mu & 0x70) / 16; + f = mu & 0x0f; + y = f * (1 << (e + 3)); + y += etab[e]; + if (mu & 0x80) + y = -y; + return y; +} + +#define BIAS 0x84 /*!< define the add-in bias for 16 bit samples */ + +static unsigned char linear2ulaw(short sample) +{ + static int exp_lut[256] = { + 0, 0, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, + 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, + 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, + 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, + 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7}; + int sign, exponent, mantissa; + unsigned char ulawbyte; + + /* Get the sample into sign-magnitude. */ + sign = (sample >> 8) & 0x80; /* set aside the sign */ + if (sign != 0) + sample = -sample; /* get magnitude */ + + /* Convert from 16 bit linear to ulaw. */ + sample = sample + BIAS; + exponent = exp_lut[(sample >> 7) & 0xFF]; + mantissa = (sample >> (exponent + 3)) & 0x0F; + ulawbyte = ~(sign | (exponent << 4) | mantissa); + + return ulawbyte; +} + +static int reverse_bits(int i) +{ + int z, j; + z = 0; + + for (j = 0; j < 8; j++) { + if ((i & (1 << j)) != 0) + z |= 1 << (7 - j); + } + return z; +} + + +void dsp_audio_generate_law_tables(void) +{ + int i; + for (i = 0; i < 256; i++) + dsp_audio_alaw_to_s32[i] = alaw2linear(reverse_bits(i)); + + for (i = 0; i < 256; i++) + dsp_audio_ulaw_to_s32[i] = ulaw2linear(reverse_bits(i)); + + for (i = 0; i < 256; i++) { + dsp_audio_alaw_to_ulaw[i] = + linear2ulaw(dsp_audio_alaw_to_s32[i]); + dsp_audio_ulaw_to_alaw[i] = + linear2alaw(dsp_audio_ulaw_to_s32[i]); + } +} + +void +dsp_audio_generate_s2law_table(void) +{ + int i; + + if (dsp_options & DSP_OPT_ULAW) { + /* generating ulaw-table */ + for (i = -32768; i < 32768; i++) { + dsp_audio_s16_to_law[i & 0xffff] = + reverse_bits(linear2ulaw(i)); + } + } else { + /* generating alaw-table */ + for (i = -32768; i < 32768; i++) { + dsp_audio_s16_to_law[i & 0xffff] = + reverse_bits(linear2alaw(i)); + } + } +} + + +/* + * the seven bit sample is the number of every second alaw-sample ordered by + * aplitude. 0x00 is negative, 0x7f is positive amplitude. + */ +u8 dsp_audio_seven2law[128]; +u8 dsp_audio_law2seven[256]; + +/******************************************************************** + * generate table for conversion law from/to 7-bit alaw-like sample * + ********************************************************************/ + +void +dsp_audio_generate_seven(void) +{ + int i, j, k; + u8 spl; + u8 sorted_alaw[256]; + + /* generate alaw table, sorted by the linear value */ + for (i = 0; i < 256; i++) { + j = 0; + for (k = 0; k < 256; k++) { + if (dsp_audio_alaw_to_s32[k] + < dsp_audio_alaw_to_s32[i]) { + j++; + } + } + sorted_alaw[j] = i; + } + + /* generate tabels */ + for (i = 0; i < 256; i++) { + /* spl is the source: the law-sample (converted to alaw) */ + spl = i; + if (dsp_options & DSP_OPT_ULAW) + spl = dsp_audio_ulaw_to_alaw[i]; + /* find the 7-bit-sample */ + for (j = 0; j < 256; j++) { + if (sorted_alaw[j] == spl) + break; + } + /* write 7-bit audio value */ + dsp_audio_law2seven[i] = j >> 1; + } + for (i = 0; i < 128; i++) { + spl = sorted_alaw[i << 1]; + if (dsp_options & DSP_OPT_ULAW) + spl = dsp_audio_alaw_to_ulaw[spl]; + dsp_audio_seven2law[i] = spl; + } +} + + +/* mix 2*law -> law */ +u8 dsp_audio_mix_law[65536]; + +/****************************************************** + * generate mix table to mix two law samples into one * + ******************************************************/ + +void +dsp_audio_generate_mix_table(void) +{ + int i, j; + s32 sample; + + i = 0; + while (i < 256) { + j = 0; + while (j < 256) { + sample = dsp_audio_law_to_s32[i]; + sample += dsp_audio_law_to_s32[j]; + if (sample > 32767) + sample = 32767; + if (sample < -32768) + sample = -32768; + dsp_audio_mix_law[(i<<8)|j] = + dsp_audio_s16_to_law[sample & 0xffff]; + j++; + } + i++; + } +} + + +/************************************* + * generate different volume changes * + *************************************/ + +static u8 dsp_audio_reduce8[256]; +static u8 dsp_audio_reduce7[256]; +static u8 dsp_audio_reduce6[256]; +static u8 dsp_audio_reduce5[256]; +static u8 dsp_audio_reduce4[256]; +static u8 dsp_audio_reduce3[256]; +static u8 dsp_audio_reduce2[256]; +static u8 dsp_audio_reduce1[256]; +static u8 dsp_audio_increase1[256]; +static u8 dsp_audio_increase2[256]; +static u8 dsp_audio_increase3[256]; +static u8 dsp_audio_increase4[256]; +static u8 dsp_audio_increase5[256]; +static u8 dsp_audio_increase6[256]; +static u8 dsp_audio_increase7[256]; +static u8 dsp_audio_increase8[256]; + +static u8 *dsp_audio_volume_change[16] = { + dsp_audio_reduce8, + dsp_audio_reduce7, + dsp_audio_reduce6, + dsp_audio_reduce5, + dsp_audio_reduce4, + dsp_audio_reduce3, + dsp_audio_reduce2, + dsp_audio_reduce1, + dsp_audio_increase1, + dsp_audio_increase2, + dsp_audio_increase3, + dsp_audio_increase4, + dsp_audio_increase5, + dsp_audio_increase6, + dsp_audio_increase7, + dsp_audio_increase8, +}; + +void +dsp_audio_generate_volume_changes(void) +{ + register s32 sample; + int i; + int num[] = { 110, 125, 150, 175, 200, 300, 400, 500 }; + int denum[] = { 100, 100, 100, 100, 100, 100, 100, 100 }; + + i = 0; + while (i < 256) { + dsp_audio_reduce8[i] = dsp_audio_s16_to_law[ + (dsp_audio_law_to_s32[i] * denum[7] / num[7]) & 0xffff]; + dsp_audio_reduce7[i] = dsp_audio_s16_to_law[ + (dsp_audio_law_to_s32[i] * denum[6] / num[6]) & 0xffff]; + dsp_audio_reduce6[i] = dsp_audio_s16_to_law[ + (dsp_audio_law_to_s32[i] * denum[5] / num[5]) & 0xffff]; + dsp_audio_reduce5[i] = dsp_audio_s16_to_law[ + (dsp_audio_law_to_s32[i] * denum[4] / num[4]) & 0xffff]; + dsp_audio_reduce4[i] = dsp_audio_s16_to_law[ + (dsp_audio_law_to_s32[i] * denum[3] / num[3]) & 0xffff]; + dsp_audio_reduce3[i] = dsp_audio_s16_to_law[ + (dsp_audio_law_to_s32[i] * denum[2] / num[2]) & 0xffff]; + dsp_audio_reduce2[i] = dsp_audio_s16_to_law[ + (dsp_audio_law_to_s32[i] * denum[1] / num[1]) & 0xffff]; + dsp_audio_reduce1[i] = dsp_audio_s16_to_law[ + (dsp_audio_law_to_s32[i] * denum[0] / num[0]) & 0xffff]; + sample = dsp_audio_law_to_s32[i] * num[0] / denum[0]; + if (sample < -32768) + sample = -32768; + else if (sample > 32767) + sample = 32767; + dsp_audio_increase1[i] = dsp_audio_s16_to_law[sample & 0xffff]; + sample = dsp_audio_law_to_s32[i] * num[1] / denum[1]; + if (sample < -32768) + sample = -32768; + else if (sample > 32767) + sample = 32767; + dsp_audio_increase2[i] = dsp_audio_s16_to_law[sample & 0xffff]; + sample = dsp_audio_law_to_s32[i] * num[2] / denum[2]; + if (sample < -32768) + sample = -32768; + else if (sample > 32767) + sample = 32767; + dsp_audio_increase3[i] = dsp_audio_s16_to_law[sample & 0xffff]; + sample = dsp_audio_law_to_s32[i] * num[3] / denum[3]; + if (sample < -32768) + sample = -32768; + else if (sample > 32767) + sample = 32767; + dsp_audio_increase4[i] = dsp_audio_s16_to_law[sample & 0xffff]; + sample = dsp_audio_law_to_s32[i] * num[4] / denum[4]; + if (sample < -32768) + sample = -32768; + else if (sample > 32767) + sample = 32767; + dsp_audio_increase5[i] = dsp_audio_s16_to_law[sample & 0xffff]; + sample = dsp_audio_law_to_s32[i] * num[5] / denum[5]; + if (sample < -32768) + sample = -32768; + else if (sample > 32767) + sample = 32767; + dsp_audio_increase6[i] = dsp_audio_s16_to_law[sample & 0xffff]; + sample = dsp_audio_law_to_s32[i] * num[6] / denum[6]; + if (sample < -32768) + sample = -32768; + else if (sample > 32767) + sample = 32767; + dsp_audio_increase7[i] = dsp_audio_s16_to_law[sample & 0xffff]; + sample = dsp_audio_law_to_s32[i] * num[7] / denum[7]; + if (sample < -32768) + sample = -32768; + else if (sample > 32767) + sample = 32767; + dsp_audio_increase8[i] = dsp_audio_s16_to_law[sample & 0xffff]; + + i++; + } +} + + +/************************************** + * change the volume of the given skb * + **************************************/ + +/* this is a helper function for changing volume of skb. the range may be + * -8 to 8, which is a shift to the power of 2. 0 == no volume, 3 == volume*8 + */ +void +dsp_change_volume(struct sk_buff *skb, int volume) +{ + u8 *volume_change; + int i, ii; + u8 *p; + int shift; + + if (volume == 0) + return; + + /* get correct conversion table */ + if (volume < 0) { + shift = volume + 8; + if (shift < 0) + shift = 0; + } else { + shift = volume + 7; + if (shift > 15) + shift = 15; + } + volume_change = dsp_audio_volume_change[shift]; + i = 0; + ii = skb->len; + p = skb->data; + /* change volume */ + while (i < ii) { + *p = volume_change[*p]; + p++; + i++; + } +} + diff --git a/drivers/isdn/mISDN/dsp_biquad.h b/drivers/isdn/mISDN/dsp_biquad.h new file mode 100644 index 0000000..038191b --- /dev/null +++ b/drivers/isdn/mISDN/dsp_biquad.h @@ -0,0 +1,65 @@ +/* + * SpanDSP - a series of DSP components for telephony + * + * biquad.h - General telephony bi-quad section routines (currently this just + * handles canonic/type 2 form) + * + * Written by Steve Underwood <steveu@coppice.org> + * + * Copyright (C) 2001 Steve Underwood + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +struct biquad2_state { + int32_t gain; + int32_t a1; + int32_t a2; + int32_t b1; + int32_t b2; + + int32_t z1; + int32_t z2; +}; + +static inline void biquad2_init(struct biquad2_state *bq, + int32_t gain, int32_t a1, int32_t a2, int32_t b1, int32_t b2) +{ + bq->gain = gain; + bq->a1 = a1; + bq->a2 = a2; + bq->b1 = b1; + bq->b2 = b2; + + bq->z1 = 0; + bq->z2 = 0; +} + +static inline int16_t biquad2(struct biquad2_state *bq, int16_t sample) +{ + int32_t y; + int32_t z0; + + z0 = sample*bq->gain + bq->z1*bq->a1 + bq->z2*bq->a2; + y = z0 + bq->z1*bq->b1 + bq->z2*bq->b2; + + bq->z2 = bq->z1; + bq->z1 = z0 >> 15; + y >>= 15; + return y; +} diff --git a/drivers/isdn/mISDN/dsp_blowfish.c b/drivers/isdn/mISDN/dsp_blowfish.c new file mode 100644 index 0000000..18e411e --- /dev/null +++ b/drivers/isdn/mISDN/dsp_blowfish.c @@ -0,0 +1,672 @@ +/* + * Blowfish encryption/decryption for mISDN_dsp. + * + * Copyright Andreas Eversberg (jolly@eversberg.eu) + * + * This software may be used and distributed according to the terms + * of the GNU General Public License, incorporated herein by reference. + * + */ + +#include <linux/mISDNif.h> +#include <linux/mISDNdsp.h> +#include "core.h" +#include "dsp.h" + +/* + * how to encode a sample stream to 64-bit blocks that will be encryped + * + * first of all, data is collected until a block of 9 samples are received. + * of course, a packet may have much more than 9 sample, but is may have + * not excacly the multiple of 9 samples. if there is a rest, the next + * received data will complete the block. + * + * the block is then converted to 9 uLAW samples without the least sigificant + * bit. the result is a 7-bit encoded sample. + * + * the samples will be reoganised to form 8 bytes of data: + * (5(6) means: encoded sample no. 5, bit 6) + * + * 0(6) 0(5) 0(4) 0(3) 0(2) 0(1) 0(0) 1(6) + * 1(5) 1(4) 1(3) 1(2) 1(1) 1(0) 2(6) 2(5) + * 2(4) 2(3) 2(2) 2(1) 2(0) 3(6) 3(5) 3(4) + * 3(3) 3(2) 3(1) 3(0) 4(6) 4(5) 4(4) 4(3) + * 4(2) 4(1) 4(0) 5(6) 5(5) 5(4) 5(3) 5(2) + * 5(1) 5(0) 6(6) 6(5) 6(4) 6(3) 6(2) 6(1) + * 6(0) 7(6) 7(5) 7(4) 7(3) 7(2) 7(1) 7(0) + * 8(6) 8(5) 8(4) 8(3) 8(2) 8(1) 8(0) + * + * the missing bit 0 of the last byte is filled with some + * random noise, to fill all 8 bytes. + * + * the 8 bytes will be encrypted using blowfish. + * + * the result will be converted into 9 bytes. the bit 7 is used for + * checksumme (CS) for sync (0, 1) and for the last bit: + * (5(6) means: crypted byte 5, bit 6) + * + * 1 0(7) 0(6) 0(5) 0(4) 0(3) 0(2) 0(1) + * 0 0(0) 1(7) 1(6) 1(5) 1(4) 1(3) 1(2) + * 0 1(1) 1(0) 2(7) 2(6) 2(5) 2(4) 2(3) + * 0 2(2) 2(1) 2(0) 3(7) 3(6) 3(5) 3(4) + * 0 3(3) 3(2) 3(1) 3(0) 4(7) 4(6) 4(5) + * CS 4(4) 4(3) 4(2) 4(1) 4(0) 5(7) 5(6) + * CS 5(5) 5(4) 5(3) 5(2) 5(1) 5(0) 6(7) + * CS 6(6) 6(5) 6(4) 6(3) 6(2) 6(1) 6(0) + * 7(0) 7(6) 7(5) 7(4) 7(3) 7(2) 7(1) 7(0) + * + * the checksum is used to detect transmission errors and frame drops. + * + * synchronisation of received block is done by shifting the upper bit of each + * byte (bit 7) to a shift register. if the rigister has the first five bits + * (10000), this is used to find the sync. only if sync has been found, the + * current block of 9 received bytes are decrypted. before that the check + * sum is calculated. if it is incorrect the block is dropped. + * this will avoid loud noise due to corrupt encrypted data. + * + * if the last block is corrupt, the current decoded block is repeated + * until a valid block has been received. + */ + +/* + * some blowfish parts are taken from the + * crypto-api for faster implementation + */ + +struct bf_ctx { + u32 p[18]; + u32 s[1024]; +}; + +static const u32 bf_pbox[16 + 2] = { + 0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344, + 0xa4093822, 0x299f31d0, 0x082efa98, 0xec4e6c89, + 0x452821e6, 0x38d01377, 0xbe5466cf, 0x34e90c6c, + 0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917, + 0x9216d5d9, 0x8979fb1b, +}; + +static const u32 bf_sbox[256 * 4] = { + 0xd1310ba6, 0x98dfb5ac, 0x2ffd72db, 0xd01adfb7, + 0xb8e1afed, 0x6a267e96, 0xba7c9045, 0xf12c7f99, + 0x24a19947, 0xb3916cf7, 0x0801f2e2, 0x858efc16, + 0x636920d8, 0x71574e69, 0xa458fea3, 0xf4933d7e, + 0x0d95748f, 0x728eb658, 0x718bcd58, 0x82154aee, + 0x7b54a41d, 0xc25a59b5, 0x9c30d539, 0x2af26013, + 0xc5d1b023, 0x286085f0, 0xca417918, 0xb8db38ef, + 0x8e79dcb0, 0x603a180e, 0x6c9e0e8b, 0xb01e8a3e, + 0xd71577c1, 0xbd314b27, 0x78af2fda, 0x55605c60, + 0xe65525f3, 0xaa55ab94, 0x57489862, 0x63e81440, + 0x55ca396a, 0x2aab10b6, 0xb4cc5c34, 0x1141e8ce, + 0xa15486af, 0x7c72e993, 0xb3ee1411, 0x636fbc2a, + 0x2ba9c55d, 0x741831f6, 0xce5c3e16, 0x9b87931e, + 0xafd6ba33, 0x6c24cf5c, 0x7a325381, 0x28958677, + 0x3b8f4898, 0x6b4bb9af, 0xc4bfe81b, 0x66282193, + 0x61d809cc, 0xfb21a991, 0x487cac60, 0x5dec8032, + 0xef845d5d, 0xe98575b1, 0xdc262302, 0xeb651b88, + 0x23893e81, 0xd396acc5, 0x0f6d6ff3, 0x83f44239, + 0x2e0b4482, 0xa4842004, 0x69c8f04a, 0x9e1f9b5e, + 0x21c66842, 0xf6e96c9a, 0x670c9c61, 0xabd388f0, + 0x6a51a0d2, 0xd8542f68, 0x960fa728, 0xab5133a3, + 0x6eef0b6c, 0x137a3be4, 0xba3bf050, 0x7efb2a98, + 0xa1f1651d, 0x39af0176, 0x66ca593e, 0x82430e88, + 0x8cee8619, 0x456f9fb4, 0x7d84a5c3, 0x3b8b5ebe, + 0xe06f75d8, 0x85c12073, 0x401a449f, 0x56c16aa6, + 0x4ed3aa62, 0x363f7706, 0x1bfedf72, 0x429b023d, + 0x37d0d724, 0xd00a1248, 0xdb0fead3, 0x49f1c09b, + 0x075372c9, 0x80991b7b, 0x25d479d8, 0xf6e8def7, + 0xe3fe501a, 0xb6794c3b, 0x976ce0bd, 0x04c006ba, + 0xc1a94fb6, 0x409f60c4, 0x5e5c9ec2, 0x196a2463, + 0x68fb6faf, 0x3e6c53b5, 0x1339b2eb, 0x3b52ec6f, + 0x6dfc511f, 0x9b30952c, 0xcc814544, 0xaf5ebd09, + 0xbee3d004, 0xde334afd, 0x660f2807, 0x192e4bb3, + 0xc0cba857, 0x45c8740f, 0xd20b5f39, 0xb9d3fbdb, + 0x5579c0bd, 0x1a60320a, 0xd6a100c6, 0x402c7279, + 0x679f25fe, 0xfb1fa3cc, 0x8ea5e9f8, 0xdb3222f8, + 0x3c7516df, 0xfd616b15, 0x2f501ec8, 0xad0552ab, + 0x323db5fa, 0xfd238760, 0x53317b48, 0x3e00df82, + 0x9e5c57bb, 0xca6f8ca0, 0x1a87562e, 0xdf1769db, + 0xd542a8f6, 0x287effc3, 0xac6732c6, 0x8c4f5573, + 0x695b27b0, 0xbbca58c8, 0xe1ffa35d, 0xb8f011a0, + 0x10fa3d98, 0xfd2183b8, 0x4afcb56c, 0x2dd1d35b, + 0x9a53e479, 0xb6f84565, 0xd28e49bc, 0x4bfb9790, + 0xe1ddf2da, 0xa4cb7e33, 0x62fb1341, 0xcee4c6e8, + 0xef20cada, 0x36774c01, 0xd07e9efe, 0x2bf11fb4, + 0x95dbda4d, 0xae909198, 0xeaad8e71, 0x6b93d5a0, + 0xd08ed1d0, 0xafc725e0, 0x8e3c5b2f, 0x8e7594b7, + 0x8ff6e2fb, 0xf2122b64, 0x8888b812, 0x900df01c, + 0x4fad5ea0, 0x688fc31c, 0xd1cff191, 0xb3a8c1ad, + 0x2f2f2218, 0xbe0e1777, 0xea752dfe, 0x8b021fa1, + 0xe5a0cc0f, 0xb56f74e8, 0x18acf3d6, 0xce89e299, + 0xb4a84fe0, 0xfd13e0b7, 0x7cc43b81, 0xd2ada8d9, + 0x165fa266, 0x80957705, 0x93cc7314, 0x211a1477, + 0xe6ad2065, 0x77b5fa86, 0xc75442f5, 0xfb9d35cf, + 0xebcdaf0c, 0x7b3e89a0, 0xd6411bd3, 0xae1e7e49, + 0x00250e2d, 0x2071b35e, 0x226800bb, 0x57b8e0af, + 0x2464369b, 0xf009b91e, 0x5563911d, 0x59dfa6aa, + 0x78c14389, 0xd95a537f, 0x207d5ba2, 0x02e5b9c5, + 0x83260376, 0x6295cfa9, 0x11c81968, 0x4e734a41, + 0xb3472dca, 0x7b14a94a, 0x1b510052, 0x9a532915, + 0xd60f573f, 0xbc9bc6e4, 0x2b60a476, 0x81e67400, + 0x08ba6fb5, 0x571be91f, 0xf296ec6b, 0x2a0dd915, + 0xb6636521, 0xe7b9f9b6, 0xff34052e, 0xc5855664, + 0x53b02d5d, 0xa99f8fa1, 0x08ba4799, 0x6e85076a, + 0x4b7a70e9, 0xb5b32944, 0xdb75092e, 0xc4192623, + 0xad6ea6b0, 0x49a7df7d, 0x9cee60b8, 0x8fedb266, + 0xecaa8c71, 0x699a17ff, 0x5664526c, 0xc2b19ee1, + 0x193602a5, 0x75094c29, 0xa0591340, 0xe4183a3e, + 0x3f54989a, 0x5b429d65, 0x6b8fe4d6, 0x99f73fd6, + 0xa1d29c07, 0xefe830f5, 0x4d2d38e6, 0xf0255dc1, + 0x4cdd2086, 0x8470eb26, 0x6382e9c6, 0x021ecc5e, + 0x09686b3f, 0x3ebaefc9, 0x3c971814, 0x6b6a70a1, + 0x687f3584, 0x52a0e286, 0xb79c5305, 0xaa500737, + 0x3e07841c, 0x7fdeae5c, 0x8e7d44ec, 0x5716f2b8, + 0xb03ada37, 0xf0500c0d, 0xf01c1f04, 0x0200b3ff, + 0xae0cf51a, 0x3cb574b2, 0x25837a58, 0xdc0921bd, + 0xd19113f9, 0x7ca92ff6, 0x94324773, 0x22f54701, + 0x3ae5e581, 0x37c2dadc, 0xc8b57634, 0x9af3dda7, + 0xa9446146, 0x0fd0030e, 0xecc8c73e, 0xa4751e41, + 0xe238cd99, 0x3bea0e2f, 0x3280bba1, 0x183eb331, + 0x4e548b38, 0x4f6db908, 0x6f420d03, 0xf60a04bf, + 0x2cb81290, 0x24977c79, 0x5679b072, 0xbcaf89af, + 0xde9a771f, 0xd9930810, 0xb38bae12, 0xdccf3f2e, + 0x5512721f, 0x2e6b7124, 0x501adde6, 0x9f84cd87, + 0x7a584718, 0x7408da17, 0xbc9f9abc, 0xe94b7d8c, + 0xec7aec3a, 0xdb851dfa, 0x63094366, 0xc464c3d2, + 0xef1c1847, 0x3215d908, 0xdd433b37, 0x24c2ba16, + 0x12a14d43, 0x2a65c451, 0x50940002, 0x133ae4dd, + 0x71dff89e, 0x10314e55, 0x81ac77d6, 0x5f11199b, + 0x043556f1, 0xd7a3c76b, 0x3c11183b, 0x5924a509, + 0xf28fe6ed, 0x97f1fbfa, 0x9ebabf2c, 0x1e153c6e, + 0x86e34570, 0xeae96fb1, 0x860e5e0a, 0x5a3e2ab3, + 0x771fe71c, 0x4e3d06fa, 0x2965dcb9, 0x99e71d0f, + 0x803e89d6, 0x5266c825, 0x2e4cc978, 0x9c10b36a, + 0xc6150eba, 0x94e2ea78, 0xa5fc3c53, 0x1e0a2df4, + 0xf2f74ea7, 0x361d2b3d, 0x1939260f, 0x19c27960, + 0x5223a708, 0xf71312b6, 0xebadfe6e, 0xeac31f66, + 0xe3bc4595, 0xa67bc883, 0xb17f37d1, 0x018cff28, + 0xc332ddef, 0xbe6c5aa5, 0x65582185, 0x68ab9802, + 0xeecea50f, 0xdb2f953b, 0x2aef7dad, 0x5b6e2f84, + 0x1521b628, 0x29076170, 0xecdd4775, 0x619f1510, + 0x13cca830, 0xeb61bd96, 0x0334fe1e, 0xaa0363cf, + 0xb5735c90, 0x4c70a239, 0xd59e9e0b, 0xcbaade14, + 0xeecc86bc, 0x60622ca7, 0x9cab5cab, 0xb2f3846e, + 0x648b1eaf, 0x19bdf0ca, 0xa02369b9, 0x655abb50, + 0x40685a32, 0x3c2ab4b3, 0x319ee9d5, 0xc021b8f7, + 0x9b540b19, 0x875fa099, 0x95f7997e, 0x623d7da8, + 0xf837889a, 0x97e32d77, 0x11ed935f, 0x16681281, + 0x0e358829, 0xc7e61fd6, 0x96dedfa1, 0x7858ba99, + 0x57f584a5, 0x1b227263, 0x9b83c3ff, 0x1ac24696, + 0xcdb30aeb, 0x532e3054, 0x8fd948e4, 0x6dbc3128, + 0x58ebf2ef, 0x34c6ffea, 0xfe28ed61, 0xee7c3c73, + 0x5d4a14d9, 0xe864b7e3, 0x42105d14, 0x203e13e0, + 0x45eee2b6, 0xa3aaabea, 0xdb6c4f15, 0xfacb4fd0, + 0xc742f442, 0xef6abbb5, 0x654f3b1d, 0x41cd2105, + 0xd81e799e, 0x86854dc7, 0xe44b476a, 0x3d816250, + 0xcf62a1f2, 0x5b8d2646, 0xfc8883a0, 0xc1c7b6a3, + 0x7f1524c3, 0x69cb7492, 0x47848a0b, 0x5692b285, + 0x095bbf00, 0xad19489d, 0x1462b174, 0x23820e00, + 0x58428d2a, 0x0c55f5ea, 0x1dadf43e, 0x233f7061, + 0x3372f092, 0x8d937e41, 0xd65fecf1, 0x6c223bdb, + 0x7cde3759, 0xcbee7460, 0x4085f2a7, 0xce77326e, + 0xa6078084, 0x19f8509e, 0xe8efd855, 0x61d99735, + 0xa969a7aa, 0xc50c06c2, 0x5a04abfc, 0x800bcadc, + 0x9e447a2e, 0xc3453484, 0xfdd56705, 0x0e1e9ec9, + 0xdb73dbd3, 0x105588cd, 0x675fda79, 0xe3674340, + 0xc5c43465, 0x713e38d8, 0x3d28f89e, 0xf16dff20, + 0x153e21e7, 0x8fb03d4a, 0xe6e39f2b, 0xdb83adf7, + 0xe93d5a68, 0x948140f7, 0xf64c261c, 0x94692934, + 0x411520f7, 0x7602d4f7, 0xbcf46b2e, 0xd4a20068, + 0xd4082471, 0x3320f46a, 0x43b7d4b7, 0x500061af, + 0x1e39f62e, 0x97244546, 0x14214f74, 0xbf8b8840, + 0x4d95fc1d, 0x96b591af, 0x70f4ddd3, 0x66a02f45, + 0xbfbc09ec, 0x03bd9785, 0x7fac6dd0, 0x31cb8504, + 0x96eb27b3, 0x55fd3941, 0xda2547e6, 0xabca0a9a, + 0x28507825, 0x530429f4, 0x0a2c86da, 0xe9b66dfb, + 0x68dc1462, 0xd7486900, 0x680ec0a4, 0x27a18dee, + 0x4f3ffea2, 0xe887ad8c, 0xb58ce006, 0x7af4d6b6, + 0xaace1e7c, 0xd3375fec, 0xce78a399, 0x406b2a42, + 0x20fe9e35, 0xd9f385b9, 0xee39d7ab, 0x3b124e8b, + 0x1dc9faf7, 0x4b6d1856, 0x26a36631, 0xeae397b2, + 0x3a6efa74, 0xdd5b4332, 0x6841e7f7, 0xca7820fb, + 0xfb0af54e, 0xd8feb397, 0x454056ac, 0xba489527, + 0x55533a3a, 0x20838d87, 0xfe6ba9b7, 0xd096954b, + 0x55a867bc, 0xa1159a58, 0xcca92963, 0x99e1db33, + 0xa62a4a56, 0x3f3125f9, 0x5ef47e1c, 0x9029317c, + 0xfdf8e802, 0x04272f70, 0x80bb155c, 0x05282ce3, + 0x95c11548, 0xe4c66d22, 0x48c1133f, 0xc70f86dc, + 0x07f9c9ee, 0x41041f0f, 0x404779a4, 0x5d886e17, + 0x325f51eb, 0xd59bc0d1, 0xf2bcc18f, 0x41113564, + 0x257b7834, 0x602a9c60, 0xdff8e8a3, 0x1f636c1b, + 0x0e12b4c2, 0x02e1329e, 0xaf664fd1, 0xcad18115, + 0x6b2395e0, 0x333e92e1, 0x3b240b62, 0xeebeb922, + 0x85b2a20e, 0xe6ba0d99, 0xde720c8c, 0x2da2f728, + 0xd0127845, 0x95b794fd, 0x647d0862, 0xe7ccf5f0, + 0x5449a36f, 0x877d48fa, 0xc39dfd27, 0xf33e8d1e, + 0x0a476341, 0x992eff74, 0x3a6f6eab, 0xf4f8fd37, + 0xa812dc60, 0xa1ebddf8, 0x991be14c, 0xdb6e6b0d, + 0xc67b5510, 0x6d672c37, 0x2765d43b, 0xdcd0e804, + 0xf1290dc7, 0xcc00ffa3, 0xb5390f92, 0x690fed0b, + 0x667b9ffb, 0xcedb7d9c, 0xa091cf0b, 0xd9155ea3, + 0xbb132f88, 0x515bad24, 0x7b9479bf, 0x763bd6eb, + 0x37392eb3, 0xcc115979, 0x8026e297, 0xf42e312d, + 0x6842ada7, 0xc66a2b3b, 0x12754ccc, 0x782ef11c, + 0x6a124237, 0xb79251e7, 0x06a1bbe6, 0x4bfb6350, + 0x1a6b1018, 0x11caedfa, 0x3d25bdd8, 0xe2e1c3c9, + 0x44421659, 0x0a121386, 0xd90cec6e, 0xd5abea2a, + 0x64af674e, 0xda86a85f, 0xbebfe988, 0x64e4c3fe, + 0x9dbc8057, 0xf0f7c086, 0x60787bf8, 0x6003604d, + 0xd1fd8346, 0xf6381fb0, 0x7745ae04, 0xd736fccc, + 0x83426b33, 0xf01eab71, 0xb0804187, 0x3c005e5f, + 0x77a057be, 0xbde8ae24, 0x55464299, 0xbf582e61, + 0x4e58f48f, 0xf2ddfda2, 0xf474ef38, 0x8789bdc2, + 0x5366f9c3, 0xc8b38e74, 0xb475f255, 0x46fcd9b9, + 0x7aeb2661, 0x8b1ddf84, 0x846a0e79, 0x915f95e2, + 0x466e598e, 0x20b45770, 0x8cd55591, 0xc902de4c, + 0xb90bace1, 0xbb8205d0, 0x11a86248, 0x7574a99e, + 0xb77f19b6, 0xe0a9dc09, 0x662d09a1, 0xc4324633, + 0xe85a1f02, 0x09f0be8c, 0x4a99a025, 0x1d6efe10, + 0x1ab93d1d, 0x0ba5a4df, 0xa186f20f, 0x2868f169, + 0xdcb7da83, 0x573906fe, 0xa1e2ce9b, 0x4fcd7f52, + 0x50115e01, 0xa70683fa, 0xa002b5c4, 0x0de6d027, + 0x9af88c27, 0x773f8641, 0xc3604c06, 0x61a806b5, + 0xf0177a28, 0xc0f586e0, 0x006058aa, 0x30dc7d62, + 0x11e69ed7, 0x2338ea63, 0x53c2dd94, 0xc2c21634, + 0xbbcbee56, 0x90bcb6de, 0xebfc7da1, 0xce591d76, + 0x6f05e409, 0x4b7c0188, 0x39720a3d, 0x7c927c24, + 0x86e3725f, 0x724d9db9, 0x1ac15bb4, 0xd39eb8fc, + 0xed545578, 0x08fca5b5, 0xd83d7cd3, 0x4dad0fc4, + 0x1e50ef5e, 0xb161e6f8, 0xa28514d9, 0x6c51133c, + 0x6fd5c7e7, 0x56e14ec4, 0x362abfce, 0xddc6c837, + 0xd79a3234, 0x92638212, 0x670efa8e, 0x406000e0, + 0x3a39ce37, 0xd3faf5cf, 0xabc27737, 0x5ac52d1b, + 0x5cb0679e, 0x4fa33742, 0xd3822740, 0x99bc9bbe, + 0xd5118e9d, 0xbf0f7315, 0xd62d1c7e, 0xc700c47b, + 0xb78c1b6b, 0x21a19045, 0xb26eb1be, 0x6a366eb4, + 0x5748ab2f, 0xbc946e79, 0xc6a376d2, 0x6549c2c8, + 0x530ff8ee, 0x468dde7d, 0xd5730a1d, 0x4cd04dc6, + 0x2939bbdb, 0xa9ba4650, 0xac9526e8, 0xbe5ee304, + 0xa1fad5f0, 0x6a2d519a, 0x63ef8ce2, 0x9a86ee22, + 0xc089c2b8, 0x43242ef6, 0xa51e03aa, 0x9cf2d0a4, + 0x83c061ba, 0x9be96a4d, 0x8fe51550, 0xba645bd6, + 0x2826a2f9, 0xa73a3ae1, 0x4ba99586, 0xef5562e9, + 0xc72fefd3, 0xf752f7da, 0x3f046f69, 0x77fa0a59, + 0x80e4a915, 0x87b08601, 0x9b09e6ad, 0x3b3ee593, + 0xe990fd5a, 0x9e34d797, 0x2cf0b7d9, 0x022b8b51, + 0x96d5ac3a, 0x017da67d, 0xd1cf3ed6, 0x7c7d2d28, + 0x1f9f25cf, 0xadf2b89b, 0x5ad6b472, 0x5a88f54c, + 0xe029ac71, 0xe019a5e6, 0x47b0acfd, 0xed93fa9b, + 0xe8d3c48d, 0x283b57cc, 0xf8d56629, 0x79132e28, + 0x785f0191, 0xed756055, 0xf7960e44, 0xe3d35e8c, + 0x15056dd4, 0x88f46dba, 0x03a16125, 0x0564f0bd, + 0xc3eb9e15, 0x3c9057a2, 0x97271aec, 0xa93a072a, + 0x1b3f6d9b, 0x1e6321f5, 0xf59c66fb, 0x26dcf319, + 0x7533d928, 0xb155fdf5, 0x03563482, 0x8aba3cbb, + 0x28517711, 0xc20ad9f8, 0xabcc5167, 0xccad925f, + 0x4de81751, 0x3830dc8e, 0x379d5862, 0x9320f991, + 0xea7a90c2, 0xfb3e7bce, 0x5121ce64, 0x774fbe32, + 0xa8b6e37e, 0xc3293d46, 0x48de5369, 0x6413e680, + 0xa2ae0810, 0xdd6db224, 0x69852dfd, 0x09072166, + 0xb39a460a, 0x6445c0dd, 0x586cdecf, 0x1c20c8ae, + 0x5bbef7dd, 0x1b588d40, 0xccd2017f, 0x6bb4e3bb, + 0xdda26a7e, 0x3a59ff45, 0x3e350a44, 0xbcb4cdd5, + 0x72eacea8, 0xfa6484bb, 0x8d6612ae, 0xbf3c6f47, + 0xd29be463, 0x542f5d9e, 0xaec2771b, 0xf64e6370, + 0x740e0d8d, 0xe75b1357, 0xf8721671, 0xaf537d5d, + 0x4040cb08, 0x4eb4e2cc, 0x34d2466a, 0x0115af84, + 0xe1b00428, 0x95983a1d, 0x06b89fb4, 0xce6ea048, + 0x6f3f3b82, 0x3520ab82, 0x011a1d4b, 0x277227f8, + 0x611560b1, 0xe7933fdc, 0xbb3a792b, 0x344525bd, + 0xa08839e1, 0x51ce794b, 0x2f32c9b7, 0xa01fbac9, + 0xe01cc87e, 0xbcc7d1f6, 0xcf0111c3, 0xa1e8aac7, + 0x1a908749, 0xd44fbd9a, 0xd0dadecb, 0xd50ada38, + 0x0339c32a, 0xc6913667, 0x8df9317c, 0xe0b12b4f, + 0xf79e59b7, 0x43f5bb3a, 0xf2d519ff, 0x27d9459c, + 0xbf97222c, 0x15e6fc2a, 0x0f91fc71, 0x9b941525, + 0xfae59361, 0xceb69ceb, 0xc2a86459, 0x12baa8d1, + 0xb6c1075e, 0xe3056a0c, 0x10d25065, 0xcb03a442, + 0xe0ec6e0e, 0x1698db3b, 0x4c98a0be, 0x3278e964, + 0x9f1f9532, 0xe0d392df, 0xd3a0342b, 0x8971f21e, + 0x1b0a7441, 0x4ba3348c, 0xc5be7120, 0xc37632d8, + 0xdf359f8d, 0x9b992f2e, 0xe60b6f47, 0x0fe3f11d, + 0xe54cda54, 0x1edad891, 0xce6279cf, 0xcd3e7e6f, + 0x1618b166, 0xfd2c1d05, 0x848fd2c5, 0xf6fb2299, + 0xf523f357, 0xa6327623, 0x93a83531, 0x56cccd02, + 0xacf08162, 0x5a75ebb5, 0x6e163697, 0x88d273cc, + 0xde966292, 0x81b949d0, 0x4c50901b, 0x71c65614, + 0xe6c6c7bd, 0x327a140a, 0x45e1d006, 0xc3f27b9a, + 0xc9aa53fd, 0x62a80f00, 0xbb25bfe2, 0x35bdd2f6, + 0x71126905, 0xb2040222, 0xb6cbcf7c, 0xcd769c2b, + 0x53113ec0, 0x1640e3d3, 0x38abbd60, 0x2547adf0, + 0xba38209c, 0xf746ce76, 0x77afa1c5, 0x20756060, + 0x85cbfe4e, 0x8ae88dd8, 0x7aaaf9b0, 0x4cf9aa7e, + 0x1948c25c, 0x02fb8a8c, 0x01c36ae4, 0xd6ebe1f9, + 0x90d4f869, 0xa65cdea0, 0x3f09252d, 0xc208e69f, + 0xb74e6132, 0xce77e25b, 0x578fdfe3, 0x3ac372e6, +}; + +/* + * Round loop unrolling macros, S is a pointer to a S-Box array + * organized in 4 unsigned longs at a row. + */ +#define GET32_3(x) (((x) & 0xff)) +#define GET32_2(x) (((x) >> (8)) & (0xff)) +#define GET32_1(x) (((x) >> (16)) & (0xff)) +#define GET32_0(x) (((x) >> (24)) & (0xff)) + +#define bf_F(x) (((S[GET32_0(x)] + S[256 + GET32_1(x)]) ^ \ + S[512 + GET32_2(x)]) + S[768 + GET32_3(x)]) + +#define EROUND(a, b, n) do { b ^= P[n]; a ^= bf_F(b); } while (0) +#define DROUND(a, b, n) do { a ^= bf_F(b); b ^= P[n]; } while (0) + + +/* + * encrypt isdn data frame + * every block with 9 samples is encrypted + */ +void +dsp_bf_encrypt(struct dsp *dsp, u8 *data, int len) +{ + int i = 0, j = dsp->bf_crypt_pos; + u8 *bf_data_in = dsp->bf_data_in; + u8 *bf_crypt_out = dsp->bf_crypt_out; + u32 *P = dsp->bf_p; + u32 *S = dsp->bf_s; + u32 yl, yr; + u32 cs; + u8 nibble; + + while (i < len) { + /* collect a block of 9 samples */ + if (j < 9) { + bf_data_in[j] = *data; + *data++ = bf_crypt_out[j++]; + i++; + continue; + } + j = 0; + /* transcode 9 samples xlaw to 8 bytes */ + yl = dsp_audio_law2seven[bf_data_in[0]]; + yl = (yl<<7) | dsp_audio_law2seven[bf_data_in[1]]; + yl = (yl<<7) | dsp_audio_law2seven[bf_data_in[2]]; + yl = (yl<<7) | dsp_audio_law2seven[bf_data_in[3]]; + nibble = dsp_audio_law2seven[bf_data_in[4]]; + yr = nibble; + yl = (yl<<4) | (nibble>>3); + yr = (yr<<7) | dsp_audio_law2seven[bf_data_in[5]]; + yr = (yr<<7) | dsp_audio_law2seven[bf_data_in[6]]; + yr = (yr<<7) | dsp_audio_law2seven[bf_data_in[7]]; + yr = (yr<<7) | dsp_audio_law2seven[bf_data_in[8]]; + yr = (yr<<1) | (bf_data_in[0] & 1); + + /* fill unused bit with random noise of audio input */ + /* encrypt */ + + EROUND(yr, yl, 0); + EROUND(yl, yr, 1); + EROUND(yr, yl, 2); + EROUND(yl, yr, 3); + EROUND(yr, yl, 4); + EROUND(yl, yr, 5); + EROUND(yr, yl, 6); + EROUND(yl, yr, 7); + EROUND(yr, yl, 8); + EROUND(yl, yr, 9); + EROUND(yr, yl, 10); + EROUND(yl, yr, 11); + EROUND(yr, yl, 12); + EROUND(yl, yr, 13); + EROUND(yr, yl, 14); + EROUND(yl, yr, 15); + yl ^= P[16]; + yr ^= P[17]; + + /* calculate 3-bit checksumme */ + cs = yl ^ (yl>>3) ^ (yl>>6) ^ (yl>>9) ^ (yl>>12) ^ (yl>>15) + ^ (yl>>18) ^ (yl>>21) ^ (yl>>24) ^ (yl>>27) ^ (yl>>30) + ^ (yr<<2) ^ (yr>>1) ^ (yr>>4) ^ (yr>>7) ^ (yr>>10) + ^ (yr>>13) ^ (yr>>16) ^ (yr>>19) ^ (yr>>22) ^ (yr>>25) + ^ (yr>>28) ^ (yr>>31); + + /* + * transcode 8 crypted bytes to 9 data bytes with sync + * and checksum information + */ + bf_crypt_out[0] = (yl>>25) | 0x80; + bf_crypt_out[1] = (yl>>18) & 0x7f; + bf_crypt_out[2] = (yl>>11) & 0x7f; + bf_crypt_out[3] = (yl>>4) & 0x7f; + bf_crypt_out[4] = ((yl<<3) & 0x78) | ((yr>>29) & 0x07); + bf_crypt_out[5] = ((yr>>22) & 0x7f) | ((cs<<5) & 0x80); + bf_crypt_out[6] = ((yr>>15) & 0x7f) | ((cs<<6) & 0x80); + bf_crypt_out[7] = ((yr>>8) & 0x7f) | (cs<<7); + bf_crypt_out[8] = yr; + } + + /* write current count */ + dsp->bf_crypt_pos = j; + +} + + +/* + * decrypt isdn data frame + * every block with 9 bytes is decrypted + */ +void +dsp_bf_decrypt(struct dsp *dsp, u8 *data, int len) +{ + int i = 0; + u8 j = dsp->bf_decrypt_in_pos; + u8 k = dsp->bf_decrypt_out_pos; + u8 *bf_crypt_inring = dsp->bf_crypt_inring; + u8 *bf_data_out = dsp->bf_data_out; + u16 sync = dsp->bf_sync; + u32 *P = dsp->bf_p; + u32 *S = dsp->bf_s; + u32 yl, yr; + u8 nibble; + u8 cs, cs0, cs1, cs2; + + while (i < len) { + /* + * shift upper bit and rotate data to buffer ring + * send current decrypted data + */ + sync = (sync<<1) | ((*data)>>7); + bf_crypt_inring[j++ & 15] = *data; + *data++ = bf_data_out[k++]; + i++; + if (k == 9) + k = 0; /* repeat if no sync has been found */ + /* check if not in sync */ + if ((sync&0x1f0) != 0x100) + continue; + j -= 9; + /* transcode receive data to 64 bit block of encrypted data */ + yl = bf_crypt_inring[j++ & 15]; + yl = (yl<<7) | bf_crypt_inring[j++ & 15]; /* bit7 = 0 */ + yl = (yl<<7) | bf_crypt_inring[j++ & 15]; /* bit7 = 0 */ + yl = (yl<<7) | bf_crypt_inring[j++ & 15]; /* bit7 = 0 */ + nibble = bf_crypt_inring[j++ & 15]; /* bit7 = 0 */ + yr = nibble; + yl = (yl<<4) | (nibble>>3); + cs2 = bf_crypt_inring[j++ & 15]; + yr = (yr<<7) | (cs2 & 0x7f); + cs1 = bf_crypt_inring[j++ & 15]; + yr = (yr<<7) | (cs1 & 0x7f); + cs0 = bf_crypt_inring[j++ & 15]; + yr = (yr<<7) | (cs0 & 0x7f); + yr = (yr<<8) | bf_crypt_inring[j++ & 15]; + + /* calculate 3-bit checksumme */ + cs = yl ^ (yl>>3) ^ (yl>>6) ^ (yl>>9) ^ (yl>>12) ^ (yl>>15) + ^ (yl>>18) ^ (yl>>21) ^ (yl>>24) ^ (yl>>27) ^ (yl>>30) + ^ (yr<<2) ^ (yr>>1) ^ (yr>>4) ^ (yr>>7) ^ (yr>>10) + ^ (yr>>13) ^ (yr>>16) ^ (yr>>19) ^ (yr>>22) ^ (yr>>25) + ^ (yr>>28) ^ (yr>>31); + + /* check if frame is valid */ + if ((cs&0x7) != (((cs2>>5)&4) | ((cs1>>6)&2) | (cs0 >> 7))) { + if (dsp_debug & DEBUG_DSP_BLOWFISH) + printk(KERN_DEBUG + "DSP BLOWFISH: received corrupt frame, " + "checksumme is not correct\n"); + continue; + } + + /* decrypt */ + yr ^= P[17]; + yl ^= P[16]; + DROUND(yl, yr, 15); + DROUND(yr, yl, 14); + DROUND(yl, yr, 13); + DROUND(yr, yl, 12); + DROUND(yl, yr, 11); + DROUND(yr, yl, 10); + DROUND(yl, yr, 9); + DROUND(yr, yl, 8); + DROUND(yl, yr, 7); + DROUND(yr, yl, 6); + DROUND(yl, yr, 5); + DROUND(yr, yl, 4); + DROUND(yl, yr, 3); + DROUND(yr, yl, 2); + DROUND(yl, yr, 1); + DROUND(yr, yl, 0); + + /* transcode 8 crypted bytes to 9 sample bytes */ + bf_data_out[0] = dsp_audio_seven2law[(yl>>25) & 0x7f]; + bf_data_out[1] = dsp_audio_seven2law[(yl>>18) & 0x7f]; + bf_data_out[2] = dsp_audio_seven2law[(yl>>11) & 0x7f]; + bf_data_out[3] = dsp_audio_seven2law[(yl>>4) & 0x7f]; + bf_data_out[4] = dsp_audio_seven2law[((yl<<3) & 0x78) | + ((yr>>29) & 0x07)]; + + bf_data_out[5] = dsp_audio_seven2law[(yr>>22) & 0x7f]; + bf_data_out[6] = dsp_audio_seven2law[(yr>>15) & 0x7f]; + bf_data_out[7] = dsp_audio_seven2law[(yr>>8) & 0x7f]; + bf_data_out[8] = dsp_audio_seven2law[(yr>>1) & 0x7f]; + k = 0; /* start with new decoded frame */ + } + + /* write current count and sync */ + dsp->bf_decrypt_in_pos = j; + dsp->bf_decrypt_out_pos = k; + dsp->bf_sync = sync; +} + + +/* used to encrypt S and P boxes */ +static inline void +encrypt_block(const u32 *P, const u32 *S, u32 *dst, u32 *src) +{ + u32 yl = src[0]; + u32 yr = src[1]; + + EROUND(yr, yl, 0); + EROUND(yl, yr, 1); + EROUND(yr, yl, 2); + EROUND(yl, yr, 3); + EROUND(yr, yl, 4); + EROUND(yl, yr, 5); + EROUND(yr, yl, 6); + EROUND(yl, yr, 7); + EROUND(yr, yl, 8); + EROUND(yl, yr, 9); + EROUND(yr, yl, 10); + EROUND(yl, yr, 11); + EROUND(yr, yl, 12); + EROUND(yl, yr, 13); + EROUND(yr, yl, 14); + EROUND(yl, yr, 15); + + yl ^= P[16]; + yr ^= P[17]; + + dst[0] = yr; + dst[1] = yl; +} + +/* + * initialize the dsp for encryption and decryption using the same key + * Calculates the blowfish S and P boxes for encryption and decryption. + * The margin of keylen must be 4-56 bytes. + * returns 0 if ok. + */ +int +dsp_bf_init(struct dsp *dsp, const u8 *key, uint keylen) +{ + short i, j, count; + u32 data[2], temp; + u32 *P = (u32 *)dsp->bf_p; + u32 *S = (u32 *)dsp->bf_s; + + if (keylen < 4 || keylen > 56) + return 1; + + /* Set dsp states */ + i = 0; + while (i < 9) { + dsp->bf_crypt_out[i] = 0xff; + dsp->bf_data_out[i] = dsp_silence; + i++; + } + dsp->bf_crypt_pos = 0; + dsp->bf_decrypt_in_pos = 0; + dsp->bf_decrypt_out_pos = 0; + dsp->bf_sync = 0x1ff; + dsp->bf_enable = 1; + + /* Copy the initialization s-boxes */ + for (i = 0, count = 0; i < 256; i++) + for (j = 0; j < 4; j++, count++) + S[count] = bf_sbox[count]; + + /* Set the p-boxes */ + for (i = 0; i < 16 + 2; i++) + P[i] = bf_pbox[i]; + + /* Actual subkey generation */ + for (j = 0, i = 0; i < 16 + 2; i++) { + temp = (((u32)key[j] << 24) | + ((u32)key[(j + 1) % keylen] << 16) | + ((u32)key[(j + 2) % keylen] << 8) | + ((u32)key[(j + 3) % keylen])); + + P[i] = P[i] ^ temp; + j = (j + 4) % keylen; + } + + data[0] = 0x00000000; + data[1] = 0x00000000; + + for (i = 0; i < 16 + 2; i += 2) { + encrypt_block(P, S, data, data); + + P[i] = data[0]; + P[i + 1] = data[1]; + } + + for (i = 0; i < 4; i++) { + for (j = 0, count = i * 256; j < 256; j += 2, count += 2) { + encrypt_block(P, S, data, data); + + S[count] = data[0]; + S[count + 1] = data[1]; + } + } + + return 0; +} + + +/* + * turn encryption off + */ +void +dsp_bf_cleanup(struct dsp *dsp) +{ + dsp->bf_enable = 0; +} diff --git a/drivers/isdn/mISDN/dsp_cmx.c b/drivers/isdn/mISDN/dsp_cmx.c new file mode 100644 index 0000000..e92b1ba --- /dev/null +++ b/drivers/isdn/mISDN/dsp_cmx.c @@ -0,0 +1,1886 @@ +/* + * Audio crossconnecting/conferrencing (hardware level). + * + * Copyright 2002 by Andreas Eversberg (jolly@eversberg.eu) + * + * This software may be used and distributed according to the terms + * of the GNU General Public License, incorporated herein by reference. + * + */ + +/* + * The process of adding and removing parties to/from a conference: + * + * There is a chain of struct dsp_conf which has one or more members in a chain + * of struct dsp_conf_member. + * + * After a party is added, the conference is checked for hardware capability. + * Also if a party is removed, the conference is checked again. + * + * There are 3 different solutions: -1 = software, 0 = hardware-crossconnect + * 1-n = hardware-conference. The n will give the conference number. + * + * Depending on the change after removal or insertion of a party, hardware + * commands are given. + * + * The current solution is stored within the struct dsp_conf entry. + */ + +/* + * HOW THE CMX WORKS: + * + * There are 3 types of interaction: One member is alone, in this case only + * data flow from upper to lower layer is done. + * Two members will also exchange their data so they are crossconnected. + * Three or more members will be added in a conference and will hear each + * other but will not receive their own speech (echo) if not enabled. + * + * Features of CMX are: + * - Crossconnecting or even conference, if more than two members are together. + * - Force mixing of transmit data with other crossconnect/conference members. + * - Echo generation to benchmark the delay of audio processing. + * - Use hardware to minimize cpu load, disable FIFO load and minimize delay. + * - Dejittering and clock generation. + * + * There are 2 buffers: + * + * + * RX-Buffer + * R W + * | | + * ----------------+-------------+------------------- + * + * The rx-buffer is a ring buffer used to store the received data for each + * individual member. This is only the case if data needs to be dejittered + * or in case of a conference where different clocks require reclocking. + * The transmit-clock (R) will read the buffer. + * If the clock overruns the write-pointer, we will have a buffer underrun. + * If the write pointer always has a certain distance from the transmit- + * clock, we will have a delay. The delay will dynamically be increased and + * reduced. + * + * + * TX-Buffer + * R W + * | | + * -----------------+--------+----------------------- + * + * The tx-buffer is a ring buffer to queue the transmit data from user space + * until it will be mixed or sent. There are two pointers, R and W. If the write + * pointer W would reach or overrun R, the buffer would overrun. In this case + * (some) data is dropped so that it will not overrun. + * Additionally a dynamic dejittering can be enabled. this allows data from + * user space that have jitter and different clock source. + * + * + * Clock: + * + * A Clock is not required, if the data source has exactly one clock. In this + * case the data source is forwarded to the destination. + * + * A Clock is required, because the data source + * - has multiple clocks. + * - has no usable clock due to jitter or packet loss (VoIP). + * In this case the system's clock is used. The clock resolution depends on + * the jiffie resolution. + * + * If a member joins a conference: + * + * - If a member joins, its rx_buff is set to silence and change read pointer + * to transmit clock. + * + * The procedure of received data from card is explained in cmx_receive. + * The procedure of received data from user space is explained in cmx_transmit. + * The procedure of transmit data to card is cmx_send. + * + * + * Interaction with other features: + * + * DTMF: + * DTMF decoding is done before the data is crossconnected. + * + * Volume change: + * Changing rx-volume is done before the data is crossconnected. The tx-volume + * must be changed whenever data is transmitted to the card by the cmx. + * + * Tones: + * If a tone is enabled, it will be processed whenever data is transmitted to + * the card. It will replace the tx-data from the user space. + * If tones are generated by hardware, this conference member is removed for + * this time. + * + * Disable rx-data: + * If cmx is realized in hardware, rx data will be disabled if requested by + * the upper layer. If dtmf decoding is done by software and enabled, rx data + * will not be diabled but blocked to the upper layer. + * + * HFC conference engine: + * If it is possible to realize all features using hardware, hardware will be + * used if not forbidden by control command. Disabling rx-data provides + * absolutely traffic free audio processing. (except for the quick 1-frame + * upload of a tone loop, only once for a new tone) + * + */ + +/* delay.h is required for hw_lock.h */ + +#include <linux/delay.h> +#include <linux/mISDNif.h> +#include <linux/mISDNdsp.h> +#include "core.h" +#include "dsp.h" +/* + * debugging of multi party conference, + * by using conference even with two members + */ + +/* #define CMX_CONF_DEBUG */ + +/*#define CMX_DEBUG * massive read/write pointer output */ +/*#define CMX_TX_DEBUG * massive read/write on tx-buffer with content */ + +static inline int +count_list_member(struct list_head *head) +{ + int cnt = 0; + struct list_head *m; + + list_for_each(m, head) + cnt++; + return cnt; +} + +/* + * debug cmx memory structure + */ +void +dsp_cmx_debug(struct dsp *dsp) +{ + struct dsp_conf *conf; + struct dsp_conf_member *member; + struct dsp *odsp; + + printk(KERN_DEBUG "-----Current DSP\n"); + list_for_each_entry(odsp, &dsp_ilist, list) { + printk(KERN_DEBUG "* %s echo=%d txmix=%d", + odsp->name, odsp->echo, odsp->tx_mix); + if (odsp->conf) + printk(" (Conf %d)", odsp->conf->id); + if (dsp == odsp) + printk(" *this*"); + printk("\n"); + } + printk(KERN_DEBUG "-----Current Conf:\n"); + list_for_each_entry(conf, &conf_ilist, list) { + printk(KERN_DEBUG "* Conf %d (%p)\n", conf->id, conf); + list_for_each_entry(member, &conf->mlist, list) { + printk(KERN_DEBUG + " - member = %s (slot_tx %d, bank_tx %d, " + "slot_rx %d, bank_rx %d hfc_conf %d)%s\n", + member->dsp->name, member->dsp->pcm_slot_tx, + member->dsp->pcm_bank_tx, member->dsp->pcm_slot_rx, + member->dsp->pcm_bank_rx, member->dsp->hfc_conf, + (member->dsp == dsp) ? " *this*" : ""); + } + } + printk(KERN_DEBUG "-----end\n"); +} + +/* + * search conference + */ +static struct dsp_conf * +dsp_cmx_search_conf(u32 id) +{ + struct dsp_conf *conf; + + if (!id) { + printk(KERN_WARNING "%s: conference ID is 0.\n", __func__); + return NULL; + } + + /* search conference */ + list_for_each_entry(conf, &conf_ilist, list) + if (conf->id == id) + return conf; + + return NULL; +} + + +/* + * add member to conference + */ +static int +dsp_cmx_add_conf_member(struct dsp *dsp, struct dsp_conf *conf) +{ + struct dsp_conf_member *member; + + if (!conf || !dsp) { + printk(KERN_WARNING "%s: conf or dsp is 0.\n", __func__); + return -EINVAL; + } + if (dsp->member) { + printk(KERN_WARNING "%s: dsp is already member in a conf.\n", + __func__); + return -EINVAL; + } + + if (dsp->conf) { + printk(KERN_WARNING "%s: dsp is already in a conf.\n", + __func__); + return -EINVAL; + } + + member = kzalloc(sizeof(struct dsp_conf_member), GFP_ATOMIC); + if (!member) { + printk(KERN_ERR "kmalloc struct dsp_conf_member failed\n"); + return -ENOMEM; + } + member->dsp = dsp; + /* clear rx buffer */ + memset(dsp->rx_buff, dsp_silence, sizeof(dsp->rx_buff)); + dsp->rx_init = 1; /* rx_W and rx_R will be adjusted on first frame */ + dsp->rx_W = 0; + dsp->rx_R = 0; + + list_add_tail(&member->list, &conf->mlist); + + dsp->conf = conf; + dsp->member = member; + + return 0; +} + + +/* + * del member from conference + */ +int +dsp_cmx_del_conf_member(struct dsp *dsp) +{ + struct dsp_conf_member *member; + + if (!dsp) { + printk(KERN_WARNING "%s: dsp is 0.\n", + __func__); + return -EINVAL; + } + + if (!dsp->conf) { + printk(KERN_WARNING "%s: dsp is not in a conf.\n", + __func__); + return -EINVAL; + } + + if (list_empty(&dsp->conf->mlist)) { + printk(KERN_WARNING "%s: dsp has linked an empty conf.\n", + __func__); + return -EINVAL; + } + + /* find us in conf */ + list_for_each_entry(member, &dsp->conf->mlist, list) { + if (member->dsp == dsp) { + list_del(&member->list); + dsp->conf = NULL; + dsp->member = NULL; + kfree(member); + return 0; + } + } + printk(KERN_WARNING + "%s: dsp is not present in its own conf_meber list.\n", + __func__); + + return -EINVAL; +} + + +/* + * new conference + */ +static struct dsp_conf +*dsp_cmx_new_conf(u32 id) +{ + struct dsp_conf *conf; + + if (!id) { + printk(KERN_WARNING "%s: id is 0.\n", + __func__); + return NULL; + } + + conf = kzalloc(sizeof(struct dsp_conf), GFP_ATOMIC); + if (!conf) { + printk(KERN_ERR "kmalloc struct dsp_conf failed\n"); + return NULL; + } + INIT_LIST_HEAD(&conf->mlist); + conf->id = id; + + list_add_tail(&conf->list, &conf_ilist); + + return conf; +} + + +/* + * del conference + */ +int +dsp_cmx_del_conf(struct dsp_conf *conf) +{ + if (!conf) { + printk(KERN_WARNING "%s: conf is null.\n", + __func__); + return -EINVAL; + } + + if (!list_empty(&conf->mlist)) { + printk(KERN_WARNING "%s: conf not empty.\n", + __func__); + return -EINVAL; + } + list_del(&conf->list); + kfree(conf); + + return 0; +} + + +/* + * send HW message to hfc card + */ +static void +dsp_cmx_hw_message(struct dsp *dsp, u32 message, u32 param1, u32 param2, + u32 param3, u32 param4) +{ + struct mISDN_ctrl_req cq; + + memset(&cq, 0, sizeof(cq)); + cq.op = message; + cq.p1 = param1 | (param2 << 8); + cq.p2 = param3 | (param4 << 8); + if (dsp->ch.peer) + dsp->ch.peer->ctrl(dsp->ch.peer, CONTROL_CHANNEL, &cq); +} + + +/* + * do hardware update and set the software/hardware flag + * + * either a conference or a dsp instance can be given + * if only dsp instance is given, the instance is not associated with a conf + * and therefore removed. if a conference is given, the dsp is expected to + * be member of that conference. + */ +void +dsp_cmx_hardware(struct dsp_conf *conf, struct dsp *dsp) +{ + struct dsp_conf_member *member, *nextm; + struct dsp *finddsp; + int memb = 0, i, ii, i1, i2; + int freeunits[8]; + u_char freeslots[256]; + int same_hfc = -1, same_pcm = -1, current_conf = -1, + all_conf = 1; + + /* dsp gets updated (no conf) */ + if (!conf) { + if (!dsp) + return; + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG "%s checking dsp %s\n", + __func__, dsp->name); +one_member: + /* remove HFC conference if enabled */ + if (dsp->hfc_conf >= 0) { + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG + "%s removing %s from HFC conf %d " + "because dsp is split\n", __func__, + dsp->name, dsp->hfc_conf); + dsp_cmx_hw_message(dsp, MISDN_CTRL_HFC_CONF_SPLIT, + 0, 0, 0, 0); + dsp->hfc_conf = -1; + } + /* process hw echo */ + if (dsp->features.pcm_banks < 1) + return; + if (!dsp->echo) { + /* NO ECHO: remove PCM slot if assigned */ + if (dsp->pcm_slot_tx >= 0 || dsp->pcm_slot_rx >= 0) { + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG "%s removing %s from" + " PCM slot %d (TX) %d (RX) because" + " dsp is split (no echo)\n", + __func__, dsp->name, + dsp->pcm_slot_tx, dsp->pcm_slot_rx); + dsp_cmx_hw_message(dsp, MISDN_CTRL_HFC_PCM_DISC, + 0, 0, 0, 0); + dsp->pcm_slot_tx = -1; + dsp->pcm_bank_tx = -1; + dsp->pcm_slot_rx = -1; + dsp->pcm_bank_rx = -1; + } + return; + } + /* ECHO: already echo */ + if (dsp->pcm_slot_tx >= 0 && dsp->pcm_slot_rx < 0 && + dsp->pcm_bank_tx == 2 && dsp->pcm_bank_rx == 2) + return; + /* ECHO: if slot already assigned */ + if (dsp->pcm_slot_tx >= 0) { + dsp->pcm_slot_rx = dsp->pcm_slot_tx; + dsp->pcm_bank_tx = 2; /* 2 means loop */ + dsp->pcm_bank_rx = 2; + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG + "%s refresh %s for echo using slot %d\n", + __func__, dsp->name, + dsp->pcm_slot_tx); + dsp_cmx_hw_message(dsp, MISDN_CTRL_HFC_PCM_CONN, + dsp->pcm_slot_tx, 2, dsp->pcm_slot_rx, 2); + return; + } + /* ECHO: find slot */ + dsp->pcm_slot_tx = -1; + dsp->pcm_slot_rx = -1; + memset(freeslots, 1, sizeof(freeslots)); + list_for_each_entry(finddsp, &dsp_ilist, list) { + if (finddsp->features.pcm_id == dsp->features.pcm_id) { + if (finddsp->pcm_slot_rx >= 0 && + finddsp->pcm_slot_rx < sizeof(freeslots)) + freeslots[finddsp->pcm_slot_tx] = 0; + if (finddsp->pcm_slot_tx >= 0 && + finddsp->pcm_slot_tx < sizeof(freeslots)) + freeslots[finddsp->pcm_slot_rx] = 0; + } + } + i = 0; + ii = dsp->features.pcm_slots; + while (i < ii) { + if (freeslots[i]) + break; + i++; + } + if (i == ii) { + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG + "%s no slot available for echo\n", + __func__); + /* no more slots available */ + return; + } + /* assign free slot */ + dsp->pcm_slot_tx = i; + dsp->pcm_slot_rx = i; + dsp->pcm_bank_tx = 2; /* loop */ + dsp->pcm_bank_rx = 2; + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG + "%s assign echo for %s using slot %d\n", + __func__, dsp->name, dsp->pcm_slot_tx); + dsp_cmx_hw_message(dsp, MISDN_CTRL_HFC_PCM_CONN, + dsp->pcm_slot_tx, 2, dsp->pcm_slot_rx, 2); + return; + } + + /* conf gets updated (all members) */ + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG "%s checking conference %d\n", + __func__, conf->id); + + if (list_empty(&conf->mlist)) { + printk(KERN_ERR "%s: conference whithout members\n", + __func__); + return; + } + member = list_entry(conf->mlist.next, struct dsp_conf_member, list); + same_hfc = member->dsp->features.hfc_id; + same_pcm = member->dsp->features.pcm_id; + /* check all members in our conference */ + list_for_each_entry(member, &conf->mlist, list) { + /* check if member uses mixing */ + if (member->dsp->tx_mix) { + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG + "%s dsp %s cannot form a conf, because " + "tx_mix is turned on\n", __func__, + member->dsp->name); +conf_software: + list_for_each_entry(member, &conf->mlist, list) { + dsp = member->dsp; + /* remove HFC conference if enabled */ + if (dsp->hfc_conf >= 0) { + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG + "%s removing %s from HFC " + "conf %d because not " + "possible with hardware\n", + __func__, + dsp->name, + dsp->hfc_conf); + dsp_cmx_hw_message(dsp, + MISDN_CTRL_HFC_CONF_SPLIT, + 0, 0, 0, 0); + dsp->hfc_conf = -1; + } + /* remove PCM slot if assigned */ + if (dsp->pcm_slot_tx >= 0 || + dsp->pcm_slot_rx >= 0) { + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG "%s removing " + "%s from PCM slot %d (TX)" + " slot %d (RX) because not" + " possible with hardware\n", + __func__, + dsp->name, + dsp->pcm_slot_tx, + dsp->pcm_slot_rx); + dsp_cmx_hw_message(dsp, + MISDN_CTRL_HFC_PCM_DISC, + 0, 0, 0, 0); + dsp->pcm_slot_tx = -1; + dsp->pcm_bank_tx = -1; + dsp->pcm_slot_rx = -1; + dsp->pcm_bank_rx = -1; + } + } + conf->hardware = 0; + conf->software = 1; + return; + } + /* check if member has echo turned on */ + if (member->dsp->echo) { + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG + "%s dsp %s cannot form a conf, because " + "echo is turned on\n", __func__, + member->dsp->name); + goto conf_software; + } + /* check if member has tx_mix turned on */ + if (member->dsp->tx_mix) { + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG + "%s dsp %s cannot form a conf, because " + "tx_mix is turned on\n", + __func__, member->dsp->name); + goto conf_software; + } + /* check if member changes volume at an not suppoted level */ + if (member->dsp->tx_volume) { + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG + "%s dsp %s cannot form a conf, because " + "tx_volume is changed\n", + __func__, member->dsp->name); + goto conf_software; + } + if (member->dsp->rx_volume) { + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG + "%s dsp %s cannot form a conf, because " + "rx_volume is changed\n", + __func__, member->dsp->name); + goto conf_software; + } + /* check if tx-data turned on */ + if (member->dsp->tx_data) { + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG + "%s dsp %s cannot form a conf, because " + "tx_data is turned on\n", + __func__, member->dsp->name); + goto conf_software; + } + /* check if pipeline exists */ + if (member->dsp->pipeline.inuse) { + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG + "%s dsp %s cannot form a conf, because " + "pipeline exists\n", __func__, + member->dsp->name); + goto conf_software; + } + /* check if encryption is enabled */ + if (member->dsp->bf_enable) { + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG "%s dsp %s cannot form a " + "conf, because encryption is enabled\n", + __func__, member->dsp->name); + goto conf_software; + } + /* check if member is on a card with PCM support */ + if (member->dsp->features.pcm_id < 0) { + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG + "%s dsp %s cannot form a conf, because " + "dsp has no PCM bus\n", + __func__, member->dsp->name); + goto conf_software; + } + /* check if relations are on the same PCM bus */ + if (member->dsp->features.pcm_id != same_pcm) { + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG + "%s dsp %s cannot form a conf, because " + "dsp is on a different PCM bus than the " + "first dsp\n", + __func__, member->dsp->name); + goto conf_software; + } + /* determine if members are on the same hfc chip */ + if (same_hfc != member->dsp->features.hfc_id) + same_hfc = -1; + /* if there are members already in a conference */ + if (current_conf < 0 && member->dsp->hfc_conf >= 0) + current_conf = member->dsp->hfc_conf; + /* if any member is not in a conference */ + if (member->dsp->hfc_conf < 0) + all_conf = 0; + + memb++; + } + + /* if no member, this is an error */ + if (memb < 1) + return; + + /* one member */ + if (memb == 1) { + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG + "%s conf %d cannot form a HW conference, " + "because dsp is alone\n", __func__, conf->id); + conf->hardware = 0; + conf->software = 0; + member = list_entry(conf->mlist.next, struct dsp_conf_member, + list); + dsp = member->dsp; + goto one_member; + } + + /* + * ok, now we are sure that all members are on the same pcm. + * now we will see if we have only two members, so we can do + * crossconnections, which don't have any limitations. + */ + + /* if we have only two members */ + if (memb == 2) { + member = list_entry(conf->mlist.next, struct dsp_conf_member, + list); + nextm = list_entry(member->list.next, struct dsp_conf_member, + list); + /* remove HFC conference if enabled */ + if (member->dsp->hfc_conf >= 0) { + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG + "%s removing %s from HFC conf %d because " + "two parties require only a PCM slot\n", + __func__, member->dsp->name, + member->dsp->hfc_conf); + dsp_cmx_hw_message(member->dsp, + MISDN_CTRL_HFC_CONF_SPLIT, 0, 0, 0, 0); + member->dsp->hfc_conf = -1; + } + if (nextm->dsp->hfc_conf >= 0) { + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG + "%s removing %s from HFC conf %d because " + "two parties require only a PCM slot\n", + __func__, nextm->dsp->name, + nextm->dsp->hfc_conf); + dsp_cmx_hw_message(nextm->dsp, + MISDN_CTRL_HFC_CONF_SPLIT, 0, 0, 0, 0); + nextm->dsp->hfc_conf = -1; + } + /* if members have two banks (and not on the same chip) */ + if (member->dsp->features.pcm_banks > 1 && + nextm->dsp->features.pcm_banks > 1 && + member->dsp->features.hfc_id != + nextm->dsp->features.hfc_id) { + /* if both members have same slots with crossed banks */ + if (member->dsp->pcm_slot_tx >= 0 && + member->dsp->pcm_slot_rx >= 0 && + nextm->dsp->pcm_slot_tx >= 0 && + nextm->dsp->pcm_slot_rx >= 0 && + nextm->dsp->pcm_slot_tx == + member->dsp->pcm_slot_rx && + nextm->dsp->pcm_slot_rx == + member->dsp->pcm_slot_tx && + nextm->dsp->pcm_slot_tx == + member->dsp->pcm_slot_tx && + member->dsp->pcm_bank_tx != + member->dsp->pcm_bank_rx && + nextm->dsp->pcm_bank_tx != + nextm->dsp->pcm_bank_rx) { + /* all members have same slot */ + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG + "%s dsp %s & %s stay joined on " + "PCM slot %d bank %d (TX) bank %d " + "(RX) (on different chips)\n", + __func__, + member->dsp->name, + nextm->dsp->name, + member->dsp->pcm_slot_tx, + member->dsp->pcm_bank_tx, + member->dsp->pcm_bank_rx); + conf->hardware = 0; + conf->software = 1; + return; + } + /* find a new slot */ + memset(freeslots, 1, sizeof(freeslots)); + list_for_each_entry(dsp, &dsp_ilist, list) { + if (dsp != member->dsp && + dsp != nextm->dsp && + member->dsp->features.pcm_id == + dsp->features.pcm_id) { + if (dsp->pcm_slot_rx >= 0 && + dsp->pcm_slot_rx < + sizeof(freeslots)) + freeslots[dsp->pcm_slot_tx] = 0; + if (dsp->pcm_slot_tx >= 0 && + dsp->pcm_slot_tx < + sizeof(freeslots)) + freeslots[dsp->pcm_slot_rx] = 0; + } + } + i = 0; + ii = member->dsp->features.pcm_slots; + while (i < ii) { + if (freeslots[i]) + break; + i++; + } + if (i == ii) { + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG + "%s no slot available for " + "%s & %s\n", __func__, + member->dsp->name, + nextm->dsp->name); + /* no more slots available */ + goto conf_software; + } + /* assign free slot */ + member->dsp->pcm_slot_tx = i; + member->dsp->pcm_slot_rx = i; + nextm->dsp->pcm_slot_tx = i; + nextm->dsp->pcm_slot_rx = i; + member->dsp->pcm_bank_rx = 0; + member->dsp->pcm_bank_tx = 1; + nextm->dsp->pcm_bank_rx = 1; + nextm->dsp->pcm_bank_tx = 0; + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG + "%s adding %s & %s to new PCM slot %d " + "(TX and RX on different chips) because " + "both members have not same slots\n", + __func__, + member->dsp->name, + nextm->dsp->name, + member->dsp->pcm_slot_tx); + dsp_cmx_hw_message(member->dsp, MISDN_CTRL_HFC_PCM_CONN, + member->dsp->pcm_slot_tx, member->dsp->pcm_bank_tx, + member->dsp->pcm_slot_rx, member->dsp->pcm_bank_rx); + dsp_cmx_hw_message(nextm->dsp, MISDN_CTRL_HFC_PCM_CONN, + nextm->dsp->pcm_slot_tx, nextm->dsp->pcm_bank_tx, + nextm->dsp->pcm_slot_rx, nextm->dsp->pcm_bank_rx); + conf->hardware = 1; + conf->software = 0; + return; + /* if members have one bank (or on the same chip) */ + } else { + /* if both members have different crossed slots */ + if (member->dsp->pcm_slot_tx >= 0 && + member->dsp->pcm_slot_rx >= 0 && + nextm->dsp->pcm_slot_tx >= 0 && + nextm->dsp->pcm_slot_rx >= 0 && + nextm->dsp->pcm_slot_tx == + member->dsp->pcm_slot_rx && + nextm->dsp->pcm_slot_rx == + member->dsp->pcm_slot_tx && + member->dsp->pcm_slot_tx != + member->dsp->pcm_slot_rx && + member->dsp->pcm_bank_tx == 0 && + member->dsp->pcm_bank_rx == 0 && + nextm->dsp->pcm_bank_tx == 0 && + nextm->dsp->pcm_bank_rx == 0) { + /* all members have same slot */ + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG + "%s dsp %s & %s stay joined on PCM " + "slot %d (TX) %d (RX) on same chip " + "or one bank PCM)\n", __func__, + member->dsp->name, + nextm->dsp->name, + member->dsp->pcm_slot_tx, + member->dsp->pcm_slot_rx); + conf->hardware = 0; + conf->software = 1; + return; + } + /* find two new slot */ + memset(freeslots, 1, sizeof(freeslots)); + list_for_each_entry(dsp, &dsp_ilist, list) { + if (dsp != member->dsp && + dsp != nextm->dsp && + member->dsp->features.pcm_id == + dsp->features.pcm_id) { + if (dsp->pcm_slot_rx >= 0 && + dsp->pcm_slot_rx < + sizeof(freeslots)) + freeslots[dsp->pcm_slot_tx] = 0; + if (dsp->pcm_slot_tx >= 0 && + dsp->pcm_slot_tx < + sizeof(freeslots)) + freeslots[dsp->pcm_slot_rx] = 0; + } + } + i1 = 0; + ii = member->dsp->features.pcm_slots; + while (i1 < ii) { + if (freeslots[i1]) + break; + i1++; + } + if (i1 == ii) { + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG + "%s no slot available " + "for %s & %s\n", __func__, + member->dsp->name, + nextm->dsp->name); + /* no more slots available */ + goto conf_software; + } + i2 = i1+1; + while (i2 < ii) { + if (freeslots[i2]) + break; + i2++; + } + if (i2 == ii) { + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG + "%s no slot available " + "for %s & %s\n", + __func__, + member->dsp->name, + nextm->dsp->name); + /* no more slots available */ + goto conf_software; + } + /* assign free slots */ + member->dsp->pcm_slot_tx = i1; + member->dsp->pcm_slot_rx = i2; + nextm->dsp->pcm_slot_tx = i2; + nextm->dsp->pcm_slot_rx = i1; + member->dsp->pcm_bank_rx = 0; + member->dsp->pcm_bank_tx = 0; + nextm->dsp->pcm_bank_rx = 0; + nextm->dsp->pcm_bank_tx = 0; + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG + "%s adding %s & %s to new PCM slot %d " + "(TX) %d (RX) on same chip or one bank " + "PCM, because both members have not " + "crossed slots\n", __func__, + member->dsp->name, + nextm->dsp->name, + member->dsp->pcm_slot_tx, + member->dsp->pcm_slot_rx); + dsp_cmx_hw_message(member->dsp, MISDN_CTRL_HFC_PCM_CONN, + member->dsp->pcm_slot_tx, member->dsp->pcm_bank_tx, + member->dsp->pcm_slot_rx, member->dsp->pcm_bank_rx); + dsp_cmx_hw_message(nextm->dsp, MISDN_CTRL_HFC_PCM_CONN, + nextm->dsp->pcm_slot_tx, nextm->dsp->pcm_bank_tx, + nextm->dsp->pcm_slot_rx, nextm->dsp->pcm_bank_rx); + conf->hardware = 1; + conf->software = 0; + return; + } + } + + /* + * if we have more than two, we may check if we have a conference + * unit available on the chip. also all members must be on the same + */ + + /* if not the same HFC chip */ + if (same_hfc < 0) { + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG + "%s conference %d cannot be formed, because " + "members are on different chips or not " + "on HFC chip\n", + __func__, conf->id); + goto conf_software; + } + + /* for more than two members.. */ + + /* in case of hdlc, we change to software */ + if (dsp->hdlc) + goto conf_software; + + /* if all members already have the same conference */ + if (all_conf) + return; + + /* + * if there is an existing conference, but not all members have joined + */ + if (current_conf >= 0) { +join_members: + list_for_each_entry(member, &conf->mlist, list) { + /* join to current conference */ + if (member->dsp->hfc_conf == current_conf) + continue; + /* get a free timeslot first */ + memset(freeslots, 1, sizeof(freeslots)); + list_for_each_entry(dsp, &dsp_ilist, list) { + /* + * not checking current member, because + * slot will be overwritten. + */ + if ( + dsp != member->dsp && + /* dsp must be on the same PCM */ + member->dsp->features.pcm_id == + dsp->features.pcm_id) { + /* dsp must be on a slot */ + if (dsp->pcm_slot_tx >= 0 && + dsp->pcm_slot_tx < + sizeof(freeslots)) + freeslots[dsp->pcm_slot_tx] = 0; + if (dsp->pcm_slot_rx >= 0 && + dsp->pcm_slot_rx < + sizeof(freeslots)) + freeslots[dsp->pcm_slot_rx] = 0; + } + } + i = 0; + ii = member->dsp->features.pcm_slots; + while (i < ii) { + if (freeslots[i]) + break; + i++; + } + if (i == ii) { + /* no more slots available */ + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG + "%s conference %d cannot be formed," + " because no slot free\n", + __func__, conf->id); + goto conf_software; + } + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG + "%s changing dsp %s to HW conference " + "%d slot %d\n", __func__, + member->dsp->name, current_conf, i); + /* assign free slot & set PCM & join conf */ + member->dsp->pcm_slot_tx = i; + member->dsp->pcm_slot_rx = i; + member->dsp->pcm_bank_tx = 2; /* loop */ + member->dsp->pcm_bank_rx = 2; + member->dsp->hfc_conf = current_conf; + dsp_cmx_hw_message(member->dsp, MISDN_CTRL_HFC_PCM_CONN, + i, 2, i, 2); + dsp_cmx_hw_message(member->dsp, + MISDN_CTRL_HFC_CONF_JOIN, current_conf, 0, 0, 0); + } + return; + } + + /* + * no member is in a conference yet, so we find a free one + */ + memset(freeunits, 1, sizeof(freeunits)); + list_for_each_entry(dsp, &dsp_ilist, list) { + /* dsp must be on the same chip */ + if (dsp->features.hfc_id == same_hfc && + /* dsp must have joined a HW conference */ + dsp->hfc_conf >= 0 && + /* slot must be within range */ + dsp->hfc_conf < 8) + freeunits[dsp->hfc_conf] = 0; + } + i = 0; + ii = 8; + while (i < ii) { + if (freeunits[i]) + break; + i++; + } + if (i == ii) { + /* no more conferences available */ + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG + "%s conference %d cannot be formed, because " + "no conference number free\n", + __func__, conf->id); + goto conf_software; + } + /* join all members */ + current_conf = i; + goto join_members; +} + + +/* + * conf_id != 0: join or change conference + * conf_id == 0: split from conference if not already + */ +int +dsp_cmx_conf(struct dsp *dsp, u32 conf_id) +{ + int err; + struct dsp_conf *conf; + struct dsp_conf_member *member; + + /* if conference doesn't change */ + if (dsp->conf_id == conf_id) + return 0; + + /* first remove us from current conf */ + if (dsp->conf_id) { + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG "removing us from conference %d\n", + dsp->conf->id); + /* remove us from conf */ + conf = dsp->conf; + err = dsp_cmx_del_conf_member(dsp); + if (err) + return err; + dsp->conf_id = 0; + + /* update hardware */ + dsp_cmx_hardware(NULL, dsp); + + /* conf now empty? */ + if (list_empty(&conf->mlist)) { + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG + "conference is empty, so we remove it.\n"); + err = dsp_cmx_del_conf(conf); + if (err) + return err; + } else { + /* update members left on conf */ + dsp_cmx_hardware(conf, NULL); + } + } + + /* if split */ + if (!conf_id) + return 0; + + /* now add us to conf */ + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG "searching conference %d\n", + conf_id); + conf = dsp_cmx_search_conf(conf_id); + if (!conf) { + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG + "conference doesn't exist yet, creating.\n"); + /* the conference doesn't exist, so we create */ + conf = dsp_cmx_new_conf(conf_id); + if (!conf) + return -EINVAL; + } else if (!list_empty(&conf->mlist)) { + member = list_entry(conf->mlist.next, struct dsp_conf_member, + list); + if (dsp->hdlc && !member->dsp->hdlc) { + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG + "cannot join transparent conference.\n"); + return -EINVAL; + } + if (!dsp->hdlc && member->dsp->hdlc) { + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG + "cannot join hdlc conference.\n"); + return -EINVAL; + } + } + /* add conference member */ + err = dsp_cmx_add_conf_member(dsp, conf); + if (err) + return err; + dsp->conf_id = conf_id; + + /* if we are alone, we do nothing! */ + if (list_empty(&conf->mlist)) { + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG + "we are alone in this conference, so exit.\n"); + /* update hardware */ + dsp_cmx_hardware(NULL, dsp); + return 0; + } + + /* update members on conf */ + dsp_cmx_hardware(conf, NULL); + + return 0; +} + + +/* + * audio data is received from card + */ +void +dsp_cmx_receive(struct dsp *dsp, struct sk_buff *skb) +{ + u8 *d, *p; + int len = skb->len; + struct mISDNhead *hh = mISDN_HEAD_P(skb); + int w, i, ii; + + /* check if we have sompen */ + if (len < 1) + return; + + /* half of the buffer should be larger than maximum packet size */ + if (len >= CMX_BUFF_HALF) { + printk(KERN_ERR + "%s line %d: packet from card is too large (%d bytes). " + "please make card send smaller packets OR increase " + "CMX_BUFF_SIZE\n", __FILE__, __LINE__, len); + return; + } + + /* + * initialize pointers if not already - + * also add delay if requested by PH_SIGNAL + */ + if (dsp->rx_init) { + dsp->rx_init = 0; + if (dsp->features.unordered) { + dsp->rx_R = (hh->id & CMX_BUFF_MASK); + dsp->rx_W = (dsp->rx_R + dsp->cmx_delay) + & CMX_BUFF_MASK; + } else { + dsp->rx_R = 0; + dsp->rx_W = dsp->cmx_delay; + } + } + /* if frame contains time code, write directly */ + if (dsp->features.unordered) { + dsp->rx_W = (hh->id & CMX_BUFF_MASK); + /* printk(KERN_DEBUG "%s %08x\n", dsp->name, hh->id); */ + } + /* + * if we underrun (or maybe overrun), + * we set our new read pointer, and write silence to buffer + */ + if (((dsp->rx_W-dsp->rx_R) & CMX_BUFF_MASK) >= CMX_BUFF_HALF) { + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG + "cmx_receive(dsp=%lx): UNDERRUN (or overrun the " + "maximum delay), adjusting read pointer! " + "(inst %s)\n", (u_long)dsp, dsp->name); + /* flush buffer */ + if (dsp->features.unordered) { + dsp->rx_R = (hh->id & CMX_BUFF_MASK); + dsp->rx_W = (dsp->rx_R + dsp->cmx_delay) + & CMX_BUFF_MASK; + } else { + dsp->rx_R = 0; + dsp->rx_W = dsp->cmx_delay; + } + memset(dsp->rx_buff, dsp_silence, sizeof(dsp->rx_buff)); + } + /* if we have reached double delay, jump back to middle */ + if (dsp->cmx_delay) + if (((dsp->rx_W - dsp->rx_R) & CMX_BUFF_MASK) >= + (dsp->cmx_delay << 1)) { + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG + "cmx_receive(dsp=%lx): OVERRUN (because " + "twice the delay is reached), adjusting " + "read pointer! (inst %s)\n", + (u_long)dsp, dsp->name); + /* flush buffer */ + if (dsp->features.unordered) { + dsp->rx_R = (hh->id & CMX_BUFF_MASK); + dsp->rx_W = (dsp->rx_R + dsp->cmx_delay) + & CMX_BUFF_MASK; + } else { + dsp->rx_R = 0; + dsp->rx_W = dsp->cmx_delay; + } + memset(dsp->rx_buff, dsp_silence, sizeof(dsp->rx_buff)); + } + + /* show where to write */ +#ifdef CMX_DEBUG + printk(KERN_DEBUG + "cmx_receive(dsp=%lx): rx_R(dsp)=%05x rx_W(dsp)=%05x len=%d %s\n", + (u_long)dsp, dsp->rx_R, dsp->rx_W, len, dsp->name); +#endif + + /* write data into rx_buffer */ + p = skb->data; + d = dsp->rx_buff; + w = dsp->rx_W; + i = 0; + ii = len; + while (i < ii) { + d[w++ & CMX_BUFF_MASK] = *p++; + i++; + } + + /* increase write-pointer */ + dsp->rx_W = ((dsp->rx_W+len) & CMX_BUFF_MASK); +} + + +/* + * send (mixed) audio data to card and control jitter + */ +static void +dsp_cmx_send_member(struct dsp *dsp, int len, s32 *c, int members) +{ + struct dsp_conf *conf = dsp->conf; + struct dsp *member, *other; + register s32 sample; + u8 *d, *p, *q, *o_q; + struct sk_buff *nskb, *txskb; + int r, rr, t, tt, o_r, o_rr; + int preload = 0; + struct mISDNhead *hh, *thh; + + /* don't process if: */ + if (!dsp->b_active) { /* if not active */ + dsp->last_tx = 0; + return; + } + if (dsp->pcm_slot_tx >= 0 && /* connected to pcm slot */ + dsp->tx_R == dsp->tx_W && /* AND no tx-data */ + !(dsp->tone.tone && dsp->tone.software)) { /* AND not soft tones */ + dsp->last_tx = 0; + return; + } + +#ifdef CMX_DEBUG + printk(KERN_DEBUG + "SEND members=%d dsp=%s, conf=%p, rx_R=%05x rx_W=%05x\n", + members, dsp->name, conf, dsp->rx_R, dsp->rx_W); +#endif + + /* preload if we have delay set */ + if (dsp->cmx_delay && !dsp->last_tx) { + preload = len; + if (preload < 128) + preload = 128; + } + + /* PREPARE RESULT */ + nskb = mI_alloc_skb(len + preload, GFP_ATOMIC); + if (!nskb) { + printk(KERN_ERR + "FATAL ERROR in mISDN_dsp.o: cannot alloc %d bytes\n", + len + preload); + return; + } + hh = mISDN_HEAD_P(nskb); + hh->prim = PH_DATA_REQ; + hh->id = 0; + dsp->last_tx = 1; + + /* set pointers, indexes and stuff */ + member = dsp; + p = dsp->tx_buff; /* transmit data */ + q = dsp->rx_buff; /* received data */ + d = skb_put(nskb, preload + len); /* result */ + t = dsp->tx_R; /* tx-pointers */ + tt = dsp->tx_W; + r = dsp->rx_R; /* rx-pointers */ + rr = (r + len) & CMX_BUFF_MASK; + + /* preload with silence, if required */ + if (preload) { + memset(d, dsp_silence, preload); + d += preload; + } + + /* PROCESS TONES/TX-DATA ONLY */ + if (dsp->tone.tone && dsp->tone.software) { + /* -> copy tone */ + dsp_tone_copy(dsp, d, len); + dsp->tx_R = 0; /* clear tx buffer */ + dsp->tx_W = 0; + goto send_packet; + } + /* if we have tx-data but do not use mixing */ + if (!dsp->tx_mix && t != tt) { + /* -> send tx-data and continue when not enough */ +#ifdef CMX_TX_DEBUG + sprintf(debugbuf, "TX sending (%04x-%04x)%p: ", t, tt, p); +#endif + while (r != rr && t != tt) { +#ifdef CMX_TX_DEBUG + if (strlen(debugbuf) < 48) + sprintf(debugbuf+strlen(debugbuf), " %02x", p[t]); +#endif + *d++ = p[t]; /* write tx_buff */ + t = (t+1) & CMX_BUFF_MASK; + r = (r+1) & CMX_BUFF_MASK; + } + if (r == rr) { + dsp->tx_R = t; +#ifdef CMX_TX_DEBUG + printk(KERN_DEBUG "%s\n", debugbuf); +#endif + goto send_packet; + } + } +#ifdef CMX_TX_DEBUG + printk(KERN_DEBUG "%s\n", debugbuf); +#endif + + /* PROCESS DATA (one member / no conf) */ + if (!conf || members <= 1) { + /* -> if echo is NOT enabled */ + if (!dsp->echo) { + /* -> send tx-data if available or use 0-volume */ + while (r != rr && t != tt) { + *d++ = p[t]; /* write tx_buff */ + t = (t+1) & CMX_BUFF_MASK; + r = (r+1) & CMX_BUFF_MASK; + } + if (r != rr) + memset(d, dsp_silence, (rr-r)&CMX_BUFF_MASK); + /* -> if echo is enabled */ + } else { + /* + * -> mix tx-data with echo if available, + * or use echo only + */ + while (r != rr && t != tt) { + *d++ = dsp_audio_mix_law[(p[t]<<8)|q[r]]; + t = (t+1) & CMX_BUFF_MASK; + r = (r+1) & CMX_BUFF_MASK; + } + while (r != rr) { + *d++ = q[r]; /* echo */ + r = (r+1) & CMX_BUFF_MASK; + } + } + dsp->tx_R = t; + goto send_packet; + } + /* PROCESS DATA (two members) */ +#ifdef CMX_CONF_DEBUG + if (0) { +#else + if (members == 2) { +#endif + /* "other" becomes other party */ + other = (list_entry(conf->mlist.next, + struct dsp_conf_member, list))->dsp; + if (other == member) + other = (list_entry(conf->mlist.prev, + struct dsp_conf_member, list))->dsp; + o_q = other->rx_buff; /* received data */ + o_rr = (other->rx_R + len) & CMX_BUFF_MASK; + /* end of rx-pointer */ + o_r = (o_rr - rr + r) & CMX_BUFF_MASK; + /* start rx-pointer at current read position*/ + /* -> if echo is NOT enabled */ + if (!dsp->echo) { + /* + * -> copy other member's rx-data, + * if tx-data is available, mix + */ + while (o_r != o_rr && t != tt) { + *d++ = dsp_audio_mix_law[(p[t]<<8)|o_q[o_r]]; + t = (t+1) & CMX_BUFF_MASK; + o_r = (o_r+1) & CMX_BUFF_MASK; + } + while (o_r != o_rr) { + *d++ = o_q[o_r]; + o_r = (o_r+1) & CMX_BUFF_MASK; + } + /* -> if echo is enabled */ + } else { + /* + * -> mix other member's rx-data with echo, + * if tx-data is available, mix + */ + while (r != rr && t != tt) { + sample = dsp_audio_law_to_s32[p[t]] + + dsp_audio_law_to_s32[q[r]] + + dsp_audio_law_to_s32[o_q[o_r]]; + if (sample < -32768) + sample = -32768; + else if (sample > 32767) + sample = 32767; + *d++ = dsp_audio_s16_to_law[sample & 0xffff]; + /* tx-data + rx_data + echo */ + t = (t+1) & CMX_BUFF_MASK; + r = (r+1) & CMX_BUFF_MASK; + o_r = (o_r+1) & CMX_BUFF_MASK; + } + while (r != rr) { + *d++ = dsp_audio_mix_law[(q[r]<<8)|o_q[o_r]]; + r = (r+1) & CMX_BUFF_MASK; + o_r = (o_r+1) & CMX_BUFF_MASK; + } + } + dsp->tx_R = t; + goto send_packet; + } +#ifdef DSP_NEVER_DEFINED + } +#endif + /* PROCESS DATA (three or more members) */ + /* -> if echo is NOT enabled */ + if (!dsp->echo) { + /* + * -> substract rx-data from conf-data, + * if tx-data is available, mix + */ + while (r != rr && t != tt) { + sample = dsp_audio_law_to_s32[p[t]] + *c++ - + dsp_audio_law_to_s32[q[r]]; + if (sample < -32768) + sample = -32768; + else if (sample > 32767) + sample = 32767; + *d++ = dsp_audio_s16_to_law[sample & 0xffff]; + /* conf-rx+tx */ + r = (r+1) & CMX_BUFF_MASK; + t = (t+1) & CMX_BUFF_MASK; + } + while (r != rr) { + sample = *c++ - dsp_audio_law_to_s32[q[r]]; + if (sample < -32768) + sample = -32768; + else if (sample > 32767) + sample = 32767; + *d++ = dsp_audio_s16_to_law[sample & 0xffff]; + /* conf-rx */ + r = (r+1) & CMX_BUFF_MASK; + } + /* -> if echo is enabled */ + } else { + /* + * -> encode conf-data, if tx-data + * is available, mix + */ + while (r != rr && t != tt) { + sample = dsp_audio_law_to_s32[p[t]] + *c++; + if (sample < -32768) + sample = -32768; + else if (sample > 32767) + sample = 32767; + *d++ = dsp_audio_s16_to_law[sample & 0xffff]; + /* conf(echo)+tx */ + t = (t+1) & CMX_BUFF_MASK; + r = (r+1) & CMX_BUFF_MASK; + } + while (r != rr) { + sample = *c++; + if (sample < -32768) + sample = -32768; + else if (sample > 32767) + sample = 32767; + *d++ = dsp_audio_s16_to_law[sample & 0xffff]; + /* conf(echo) */ + r = (r+1) & CMX_BUFF_MASK; + } + } + dsp->tx_R = t; + goto send_packet; + +send_packet: + /* + * send tx-data if enabled - don't filter, + * becuase we want what we send, not what we filtered + */ + if (dsp->tx_data) { + /* PREPARE RESULT */ + txskb = mI_alloc_skb(len, GFP_ATOMIC); + if (!txskb) { + printk(KERN_ERR + "FATAL ERROR in mISDN_dsp.o: " + "cannot alloc %d bytes\n", len); + } else { + thh = mISDN_HEAD_P(txskb); + thh->prim = DL_DATA_REQ; + thh->id = 0; + memcpy(skb_put(txskb, len), nskb->data+preload, len); + /* queue (trigger later) */ + skb_queue_tail(&dsp->sendq, txskb); + } + } + /* adjust volume */ + if (dsp->tx_volume) + dsp_change_volume(nskb, dsp->tx_volume); + /* pipeline */ + if (dsp->pipeline.inuse) + dsp_pipeline_process_tx(&dsp->pipeline, nskb->data, nskb->len); + /* crypt */ + if (dsp->bf_enable) + dsp_bf_encrypt(dsp, nskb->data, nskb->len); + /* queue and trigger */ + skb_queue_tail(&dsp->sendq, nskb); + schedule_work(&dsp->workq); +} + +u32 samplecount; +struct timer_list dsp_spl_tl; +u32 dsp_spl_jiffies; /* calculate the next time to fire */ +u32 dsp_start_jiffies; /* jiffies at the time, the calculation begins */ +struct timeval dsp_start_tv; /* time at start of calculation */ + +void +dsp_cmx_send(void *arg) +{ + struct dsp_conf *conf; + struct dsp_conf_member *member; + struct dsp *dsp; + int mustmix, members; + s32 mixbuffer[MAX_POLL+100], *c; + u8 *p, *q; + int r, rr; + int jittercheck = 0, delay, i; + u_long flags; + struct timeval tv; + u32 elapsed; + s16 length; + + /* lock */ + spin_lock_irqsave(&dsp_lock, flags); + + if (!dsp_start_tv.tv_sec) { + do_gettimeofday(&dsp_start_tv); + length = dsp_poll; + } else { + do_gettimeofday(&tv); + elapsed = ((tv.tv_sec - dsp_start_tv.tv_sec) * 8000) + + ((s32)(tv.tv_usec / 125) - (dsp_start_tv.tv_usec / 125)); + dsp_start_tv.tv_sec = tv.tv_sec; + dsp_start_tv.tv_usec = tv.tv_usec; + length = elapsed; + } + if (length > MAX_POLL + 100) + length = MAX_POLL + 100; +/* printk(KERN_DEBUG "len=%d dsp_count=0x%x.%04x dsp_poll_diff=0x%x.%04x\n", + length, dsp_count >> 16, dsp_count & 0xffff, dsp_poll_diff >> 16, + dsp_poll_diff & 0xffff); + */ + + /* + * check if jitter needs to be checked + * (this is about every second = 8192 samples) + */ + samplecount += length; + if ((samplecount & 8191) < length) + jittercheck = 1; + + /* loop all members that do not require conference mixing */ + list_for_each_entry(dsp, &dsp_ilist, list) { + if (dsp->hdlc) + continue; + conf = dsp->conf; + mustmix = 0; + members = 0; + if (conf) { + members = count_list_member(&conf->mlist); +#ifdef CMX_CONF_DEBUG + if (conf->software && members > 1) +#else + if (conf->software && members > 2) +#endif + mustmix = 1; + } + + /* transmission required */ + if (!mustmix) { + dsp_cmx_send_member(dsp, length, mixbuffer, members); + + /* + * unused mixbuffer is given to prevent a + * potential null-pointer-bug + */ + } + } + + /* loop all members that require conference mixing */ + list_for_each_entry(conf, &conf_ilist, list) { + /* count members and check hardware */ + members = count_list_member(&conf->mlist); +#ifdef CMX_CONF_DEBUG + if (conf->software && members > 1) { +#else + if (conf->software && members > 2) { +#endif + /* check for hdlc conf */ + member = list_entry(conf->mlist.next, + struct dsp_conf_member, list); + if (member->dsp->hdlc) + continue; + /* mix all data */ + memset(mixbuffer, 0, length*sizeof(s32)); + list_for_each_entry(member, &conf->mlist, list) { + dsp = member->dsp; + /* get range of data to mix */ + c = mixbuffer; + q = dsp->rx_buff; + r = dsp->rx_R; + rr = (r + length) & CMX_BUFF_MASK; + /* add member's data */ + while (r != rr) { + *c++ += dsp_audio_law_to_s32[q[r]]; + r = (r+1) & CMX_BUFF_MASK; + } + } + + /* process each member */ + list_for_each_entry(member, &conf->mlist, list) { + /* transmission */ + dsp_cmx_send_member(member->dsp, length, + mixbuffer, members); + } + } + } + + /* delete rx-data, increment buffers, change pointers */ + list_for_each_entry(dsp, &dsp_ilist, list) { + if (dsp->hdlc) + continue; + p = dsp->rx_buff; + q = dsp->tx_buff; + r = dsp->rx_R; + /* move receive pointer when receiving */ + if (!dsp->rx_is_off) { + rr = (r + length) & CMX_BUFF_MASK; + /* delete rx-data */ + while (r != rr) { + p[r] = dsp_silence; + r = (r+1) & CMX_BUFF_MASK; + } + /* increment rx-buffer pointer */ + dsp->rx_R = r; /* write incremented read pointer */ + } + + /* check current rx_delay */ + delay = (dsp->rx_W-dsp->rx_R) & CMX_BUFF_MASK; + if (delay >= CMX_BUFF_HALF) + delay = 0; /* will be the delay before next write */ + /* check for lower delay */ + if (delay < dsp->rx_delay[0]) + dsp->rx_delay[0] = delay; + /* check current tx_delay */ + delay = (dsp->tx_W-dsp->tx_R) & CMX_BUFF_MASK; + if (delay >= CMX_BUFF_HALF) + delay = 0; /* will be the delay before next write */ + /* check for lower delay */ + if (delay < dsp->tx_delay[0]) + dsp->tx_delay[0] = delay; + if (jittercheck) { + /* find the lowest of all rx_delays */ + delay = dsp->rx_delay[0]; + i = 1; + while (i < MAX_SECONDS_JITTER_CHECK) { + if (delay > dsp->rx_delay[i]) + delay = dsp->rx_delay[i]; + i++; + } + /* + * remove rx_delay only if we have delay AND we + * have not preset cmx_delay + */ + if (delay && !dsp->cmx_delay) { + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG + "%s lowest rx_delay of %d bytes for" + " dsp %s are now removed.\n", + __func__, delay, + dsp->name); + r = dsp->rx_R; + rr = (r + delay) & CMX_BUFF_MASK; + /* delete rx-data */ + while (r != rr) { + p[r] = dsp_silence; + r = (r+1) & CMX_BUFF_MASK; + } + /* increment rx-buffer pointer */ + dsp->rx_R = r; + /* write incremented read pointer */ + } + /* find the lowest of all tx_delays */ + delay = dsp->tx_delay[0]; + i = 1; + while (i < MAX_SECONDS_JITTER_CHECK) { + if (delay > dsp->tx_delay[i]) + delay = dsp->tx_delay[i]; + i++; + } + /* + * remove delay only if we have delay AND we + * have enabled tx_dejitter + */ + if (delay && dsp->tx_dejitter) { + if (dsp_debug & DEBUG_DSP_CMX) + printk(KERN_DEBUG + "%s lowest tx_delay of %d bytes for" + " dsp %s are now removed.\n", + __func__, delay, + dsp->name); + r = dsp->tx_R; + rr = (r + delay) & CMX_BUFF_MASK; + /* delete tx-data */ + while (r != rr) { + q[r] = dsp_silence; + r = (r+1) & CMX_BUFF_MASK; + } + /* increment rx-buffer pointer */ + dsp->tx_R = r; + /* write incremented read pointer */ + } + /* scroll up delays */ + i = MAX_SECONDS_JITTER_CHECK - 1; + while (i) { + dsp->rx_delay[i] = dsp->rx_delay[i-1]; + dsp->tx_delay[i] = dsp->tx_delay[i-1]; + i--; + } + dsp->tx_delay[0] = CMX_BUFF_HALF; /* (infinite) delay */ + dsp->rx_delay[0] = CMX_BUFF_HALF; /* (infinite) delay */ + } + } + + /* if next event would be in the past ... */ + if ((s32)(dsp_spl_jiffies+dsp_tics-jiffies) <= 0) + dsp_spl_jiffies = jiffies + 1; + else + dsp_spl_jiffies += dsp_tics; + + dsp_spl_tl.expires = dsp_spl_jiffies; + add_timer(&dsp_spl_tl); + + /* unlock */ + spin_unlock_irqrestore(&dsp_lock, flags); +} + +/* + * audio data is transmitted from upper layer to the dsp + */ +void +dsp_cmx_transmit(struct dsp *dsp, struct sk_buff *skb) +{ + u_int w, ww; + u8 *d, *p; + int space; /* todo: , l = skb->len; */ +#ifdef CMX_TX_DEBUG + char debugbuf[256] = ""; +#endif + + /* check if there is enough space, and then copy */ + w = dsp->tx_W; + ww = dsp->tx_R; + p = dsp->tx_buff; + d = skb->data; + space = ww-w; + if (space <= 0) + space += CMX_BUFF_SIZE; + /* write-pointer should not overrun nor reach read pointer */ + if (space-1 < skb->len) + /* write to the space we have left */ + ww = (ww - 1) & CMX_BUFF_MASK; + else + /* write until all byte are copied */ + ww = (w + skb->len) & CMX_BUFF_MASK; + dsp->tx_W = ww; + + /* show current buffer */ +#ifdef CMX_DEBUG + printk(KERN_DEBUG + "cmx_transmit(dsp=%lx) %d bytes to 0x%x-0x%x. %s\n", + (u_long)dsp, (ww-w)&CMX_BUFF_MASK, w, ww, dsp->name); +#endif + + /* copy transmit data to tx-buffer */ +#ifdef CMX_TX_DEBUG + sprintf(debugbuf, "TX getting (%04x-%04x)%p: ", w, ww, p); +#endif + while (w != ww) { +#ifdef CMX_TX_DEBUG + if (strlen(debugbuf) < 48) + sprintf(debugbuf+strlen(debugbuf), " %02x", *d); +#endif + p[w] = *d++; + w = (w+1) & CMX_BUFF_MASK; + } +#ifdef CMX_TX_DEBUG + printk(KERN_DEBUG "%s\n", debugbuf); +#endif + +} + +/* + * hdlc data is received from card and sent to all members. + */ +void +dsp_cmx_hdlc(struct dsp *dsp, struct sk_buff *skb) +{ + struct sk_buff *nskb = NULL; + struct dsp_conf_member *member; + struct mISDNhead *hh; + + /* not if not active */ + if (!dsp->b_active) + return; + + /* check if we have sompen */ + if (skb->len < 1) + return; + + /* no conf */ + if (!dsp->conf) { + /* in case of hardware (echo) */ + if (dsp->pcm_slot_tx >= 0) + return; + if (dsp->echo) + nskb = skb_clone(skb, GFP_ATOMIC); + if (nskb) { + hh = mISDN_HEAD_P(nskb); + hh->prim = PH_DATA_REQ; + hh->id = 0; + skb_queue_tail(&dsp->sendq, nskb); + schedule_work(&dsp->workq); + } + return; + } + /* in case of hardware conference */ + if (dsp->conf->hardware) + return; + list_for_each_entry(member, &dsp->conf->mlist, list) { + if (dsp->echo || member->dsp != dsp) { + nskb = skb_clone(skb, GFP_ATOMIC); + if (nskb) { + hh = mISDN_HEAD_P(nskb); + hh->prim = PH_DATA_REQ; + hh->id = 0; + skb_queue_tail(&member->dsp->sendq, nskb); + schedule_work(&member->dsp->workq); + } + } + } +} + + diff --git a/drivers/isdn/mISDN/dsp_core.c b/drivers/isdn/mISDN/dsp_core.c new file mode 100644 index 0000000..2f10ed8 --- /dev/null +++ b/drivers/isdn/mISDN/dsp_core.c @@ -0,0 +1,1191 @@ +/* + * Author Andreas Eversberg (jolly@eversberg.eu) + * Based on source code structure by + * Karsten Keil (keil@isdn4linux.de) + * + * This file is (c) under GNU PUBLIC LICENSE + * For changes and modifications please read + * ../../../Documentation/isdn/mISDN.cert + * + * Thanks to Karsten Keil (great drivers) + * Cologne Chip (great chips) + * + * This module does: + * Real-time tone generation + * DTMF detection + * Real-time cross-connection and conferrence + * Compensate jitter due to system load and hardware fault. + * All features are done in kernel space and will be realized + * using hardware, if available and supported by chip set. + * Blowfish encryption/decryption + */ + +/* STRUCTURE: + * + * The dsp module provides layer 2 for b-channels (64kbit). It provides + * transparent audio forwarding with special digital signal processing: + * + * - (1) generation of tones + * - (2) detection of dtmf tones + * - (3) crossconnecting and conferences (clocking) + * - (4) echo generation for delay test + * - (5) volume control + * - (6) disable receive data + * - (7) pipeline + * - (8) encryption/decryption + * + * Look: + * TX RX + * ------upper layer------ + * | ^ + * | |(6) + * v | + * +-----+-------------+-----+ + * |(3)(4) | + * | CMX | + * | | + * | +-------------+ + * | | ^ + * | | | + * |+---------+| +----+----+ + * ||(1) || |(2) | + * || || | | + * || Tones || | DTMF | + * || || | | + * || || | | + * |+----+----+| +----+----+ + * +-----+-----+ ^ + * | | + * v | + * +----+----+ +----+----+ + * |(5) | |(5) | + * | | | | + * |TX Volume| |RX Volume| + * | | | | + * | | | | + * +----+----+ +----+----+ + * | ^ + * | | + * v | + * +----+-------------+----+ + * |(7) | + * | | + * | Pipeline Processing | + * | | + * | | + * +----+-------------+----+ + * | ^ + * | | + * v | + * +----+----+ +----+----+ + * |(8) | |(8) | + * | | | | + * | Encrypt | | Decrypt | + * | | | | + * | | | | + * +----+----+ +----+----+ + * | ^ + * | | + * v | + * ------card layer------ + * TX RX + * + * Above you can see the logical data flow. If software is used to do the + * process, it is actually the real data flow. If hardware is used, data + * may not flow, but hardware commands to the card, to provide the data flow + * as shown. + * + * NOTE: The channel must be activated in order to make dsp work, even if + * no data flow to the upper layer is intended. Activation can be done + * after and before controlling the setting using PH_CONTROL requests. + * + * DTMF: Will be detected by hardware if possible. It is done before CMX + * processing. + * + * Tones: Will be generated via software if endless looped audio fifos are + * not supported by hardware. Tones will override all data from CMX. + * It is not required to join a conference to use tones at any time. + * + * CMX: Is transparent when not used. When it is used, it will do + * crossconnections and conferences via software if not possible through + * hardware. If hardware capability is available, hardware is used. + * + * Echo: Is generated by CMX and is used to check performane of hard and + * software CMX. + * + * The CMX has special functions for conferences with one, two and more + * members. It will allow different types of data flow. Receive and transmit + * data to/form upper layer may be swithed on/off individually without loosing + * features of CMX, Tones and DTMF. + * + * Echo Cancellation: Sometimes we like to cancel echo from the interface. + * Note that a VoIP call may not have echo caused by the IP phone. The echo + * is generated by the telephone line connected to it. Because the delay + * is high, it becomes an echo. RESULT: Echo Cachelation is required if + * both echo AND delay is applied to an interface. + * Remember that software CMX always generates a more or less delay. + * + * If all used features can be realized in hardware, and if transmit and/or + * receive data ist disabled, the card may not send/receive any data at all. + * Not receiving is usefull if only announcements are played. Not sending is + * usefull if an answering machine records audio. Not sending and receiving is + * usefull during most states of the call. If supported by hardware, tones + * will be played without cpu load. Small PBXs and NT-Mode applications will + * not need expensive hardware when processing calls. + * + * + * LOCKING: + * + * When data is received from upper or lower layer (card), the complete dsp + * module is locked by a global lock. This lock MUST lock irq, because it + * must lock timer events by DSP poll timer. + * When data is ready to be transmitted down, the data is queued and sent + * outside lock and timer event. + * PH_CONTROL must not change any settings, join or split conference members + * during process of data. + * + * HDLC: + * + * It works quite the same as transparent, except that HDLC data is forwarded + * to all other conference members if no hardware bridging is possible. + * Send data will be writte to sendq. Sendq will be sent if confirm is received. + * Conference cannot join, if one member is not hdlc. + * + */ + +#include <linux/delay.h> +#include <linux/mISDNif.h> +#include <linux/mISDNdsp.h> +#include <linux/module.h> +#include <linux/vmalloc.h> +#include "core.h" +#include "dsp.h" + +const char *mISDN_dsp_revision = "2.0"; + +static int debug; +static int options; +static int poll; +static int dtmfthreshold = 100; + +MODULE_AUTHOR("Andreas Eversberg"); +module_param(debug, uint, S_IRUGO | S_IWUSR); +module_param(options, uint, S_IRUGO | S_IWUSR); +module_param(poll, uint, S_IRUGO | S_IWUSR); +module_param(dtmfthreshold, uint, S_IRUGO | S_IWUSR); +MODULE_LICENSE("GPL"); + +/*int spinnest = 0;*/ + +spinlock_t dsp_lock; /* global dsp lock */ +struct list_head dsp_ilist; +struct list_head conf_ilist; +int dsp_debug; +int dsp_options; +int dsp_poll, dsp_tics; + +/* check if rx may be turned off or must be turned on */ +static void +dsp_rx_off_member(struct dsp *dsp) +{ + struct mISDN_ctrl_req cq; + int rx_off = 1; + + if (!dsp->features_rx_off) + return; + + /* not disabled */ + if (!dsp->rx_disabled) + rx_off = 0; + /* software dtmf */ + else if (dsp->dtmf.software) + rx_off = 0; + /* echo in software */ + else if (dsp->echo && dsp->pcm_slot_tx < 0) + rx_off = 0; + /* bridge in software */ + else if (dsp->conf) { + if (dsp->conf->software) + rx_off = 0; + } + + if (rx_off == dsp->rx_is_off) + return; + + if (!dsp->ch.peer) { + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: no peer, no rx_off\n", + __func__); + return; + } + cq.op = MISDN_CTRL_RX_OFF; + cq.p1 = rx_off; + if (dsp->ch.peer->ctrl(dsp->ch.peer, CONTROL_CHANNEL, &cq)) { + printk(KERN_DEBUG "%s: 2nd CONTROL_CHANNEL failed\n", + __func__); + return; + } + dsp->rx_is_off = rx_off; + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: %s set rx_off = %d\n", + __func__, dsp->name, rx_off); +} +static void +dsp_rx_off(struct dsp *dsp) +{ + struct dsp_conf_member *member; + + if (dsp_options & DSP_OPT_NOHARDWARE) + return; + + /* no conf */ + if (!dsp->conf) { + dsp_rx_off_member(dsp); + return; + } + /* check all members in conf */ + list_for_each_entry(member, &dsp->conf->mlist, list) { + dsp_rx_off_member(member->dsp); + } +} + +static int +dsp_control_req(struct dsp *dsp, struct mISDNhead *hh, struct sk_buff *skb) +{ + struct sk_buff *nskb; + int ret = 0; + int cont; + u8 *data; + int len; + + if (skb->len < sizeof(int)) + printk(KERN_ERR "%s: PH_CONTROL message too short\n", __func__); + cont = *((int *)skb->data); + len = skb->len - sizeof(int); + data = skb->data + sizeof(int); + + switch (cont) { + case DTMF_TONE_START: /* turn on DTMF */ + if (dsp->hdlc) { + ret = -EINVAL; + break; + } + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: start dtmf\n", __func__); + if (len == sizeof(int)) { + printk(KERN_NOTICE "changing DTMF Threshold " + "to %d\n", *((int *)data)); + dsp->dtmf.treshold = (*(int *)data) * 10000; + } + /* init goertzel */ + dsp_dtmf_goertzel_init(dsp); + + /* check dtmf hardware */ + dsp_dtmf_hardware(dsp); + break; + case DTMF_TONE_STOP: /* turn off DTMF */ + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: stop dtmf\n", __func__); + dsp->dtmf.hardware = 0; + dsp->dtmf.software = 0; + break; + case DSP_CONF_JOIN: /* join / update conference */ + if (len < sizeof(int)) { + ret = -EINVAL; + break; + } + if (*((u32 *)data) == 0) + goto conf_split; + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: join conference %d\n", + __func__, *((u32 *)data)); + ret = dsp_cmx_conf(dsp, *((u32 *)data)); + /* dsp_cmx_hardware will also be called here */ + dsp_rx_off(dsp); + if (dsp_debug & DEBUG_DSP_CMX) + dsp_cmx_debug(dsp); + break; + case DSP_CONF_SPLIT: /* remove from conference */ +conf_split: + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: release conference\n", __func__); + ret = dsp_cmx_conf(dsp, 0); + /* dsp_cmx_hardware will also be called here */ + if (dsp_debug & DEBUG_DSP_CMX) + dsp_cmx_debug(dsp); + dsp_rx_off(dsp); + break; + case DSP_TONE_PATT_ON: /* play tone */ + if (dsp->hdlc) { + ret = -EINVAL; + break; + } + if (len < sizeof(int)) { + ret = -EINVAL; + break; + } + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: turn tone 0x%x on\n", + __func__, *((int *)skb->data)); + ret = dsp_tone(dsp, *((int *)data)); + if (!ret) { + dsp_cmx_hardware(dsp->conf, dsp); + dsp_rx_off(dsp); + } + if (!dsp->tone.tone) + goto tone_off; + break; + case DSP_TONE_PATT_OFF: /* stop tone */ + if (dsp->hdlc) { + ret = -EINVAL; + break; + } + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: turn tone off\n", __func__); + dsp_tone(dsp, 0); + dsp_cmx_hardware(dsp->conf, dsp); + dsp_rx_off(dsp); + /* reset tx buffers (user space data) */ +tone_off: + dsp->rx_W = 0; + dsp->rx_R = 0; + break; + case DSP_VOL_CHANGE_TX: /* change volume */ + if (dsp->hdlc) { + ret = -EINVAL; + break; + } + if (len < sizeof(int)) { + ret = -EINVAL; + break; + } + dsp->tx_volume = *((int *)data); + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: change tx vol to %d\n", + __func__, dsp->tx_volume); + dsp_cmx_hardware(dsp->conf, dsp); + dsp_dtmf_hardware(dsp); + dsp_rx_off(dsp); + break; + case DSP_VOL_CHANGE_RX: /* change volume */ + if (dsp->hdlc) { + ret = -EINVAL; + break; + } + if (len < sizeof(int)) { + ret = -EINVAL; + break; + } + dsp->rx_volume = *((int *)data); + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: change rx vol to %d\n", + __func__, dsp->tx_volume); + dsp_cmx_hardware(dsp->conf, dsp); + dsp_dtmf_hardware(dsp); + dsp_rx_off(dsp); + break; + case DSP_ECHO_ON: /* enable echo */ + dsp->echo = 1; /* soft echo */ + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: enable cmx-echo\n", __func__); + dsp_cmx_hardware(dsp->conf, dsp); + dsp_rx_off(dsp); + if (dsp_debug & DEBUG_DSP_CMX) + dsp_cmx_debug(dsp); + break; + case DSP_ECHO_OFF: /* disable echo */ + dsp->echo = 0; + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: disable cmx-echo\n", __func__); + dsp_cmx_hardware(dsp->conf, dsp); + dsp_rx_off(dsp); + if (dsp_debug & DEBUG_DSP_CMX) + dsp_cmx_debug(dsp); + break; + case DSP_RECEIVE_ON: /* enable receive to user space */ + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: enable receive to user " + "space\n", __func__); + dsp->rx_disabled = 0; + dsp_rx_off(dsp); + break; + case DSP_RECEIVE_OFF: /* disable receive to user space */ + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: disable receive to " + "user space\n", __func__); + dsp->rx_disabled = 1; + dsp_rx_off(dsp); + break; + case DSP_MIX_ON: /* enable mixing of tx data */ + if (dsp->hdlc) { + ret = -EINVAL; + break; + } + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: enable mixing of " + "tx-data with conf mebers\n", __func__); + dsp->tx_mix = 1; + dsp_cmx_hardware(dsp->conf, dsp); + dsp_rx_off(dsp); + if (dsp_debug & DEBUG_DSP_CMX) + dsp_cmx_debug(dsp); + break; + case DSP_MIX_OFF: /* disable mixing of tx data */ + if (dsp->hdlc) { + ret = -EINVAL; + break; + } + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: disable mixing of " + "tx-data with conf mebers\n", __func__); + dsp->tx_mix = 0; + dsp_cmx_hardware(dsp->conf, dsp); + dsp_rx_off(dsp); + if (dsp_debug & DEBUG_DSP_CMX) + dsp_cmx_debug(dsp); + break; + case DSP_TXDATA_ON: /* enable txdata */ + dsp->tx_data = 1; + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: enable tx-data\n", __func__); + dsp_cmx_hardware(dsp->conf, dsp); + dsp_rx_off(dsp); + if (dsp_debug & DEBUG_DSP_CMX) + dsp_cmx_debug(dsp); + break; + case DSP_TXDATA_OFF: /* disable txdata */ + dsp->tx_data = 0; + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: disable tx-data\n", __func__); + dsp_cmx_hardware(dsp->conf, dsp); + dsp_rx_off(dsp); + if (dsp_debug & DEBUG_DSP_CMX) + dsp_cmx_debug(dsp); + break; + case DSP_DELAY: /* use delay algorithm instead of dynamic + jitter algorithm */ + if (dsp->hdlc) { + ret = -EINVAL; + break; + } + if (len < sizeof(int)) { + ret = -EINVAL; + break; + } + dsp->cmx_delay = (*((int *)data)) << 3; + /* miliseconds to samples */ + if (dsp->cmx_delay >= (CMX_BUFF_HALF>>1)) + /* clip to half of maximum usable buffer + (half of half buffer) */ + dsp->cmx_delay = (CMX_BUFF_HALF>>1) - 1; + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: use delay algorithm to " + "compensate jitter (%d samples)\n", + __func__, dsp->cmx_delay); + break; + case DSP_JITTER: /* use dynamic jitter algorithm instead of + delay algorithm */ + if (dsp->hdlc) { + ret = -EINVAL; + break; + } + dsp->cmx_delay = 0; + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: use jitter algorithm to " + "compensate jitter\n", __func__); + break; + case DSP_TX_DEJITTER: /* use dynamic jitter algorithm for tx-buffer */ + if (dsp->hdlc) { + ret = -EINVAL; + break; + } + dsp->tx_dejitter = 1; + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: use dejitter on TX " + "buffer\n", __func__); + break; + case DSP_TX_DEJ_OFF: /* use tx-buffer without dejittering*/ + if (dsp->hdlc) { + ret = -EINVAL; + break; + } + dsp->tx_dejitter = 0; + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: use TX buffer without " + "dejittering\n", __func__); + break; + case DSP_PIPELINE_CFG: + if (dsp->hdlc) { + ret = -EINVAL; + break; + } + if (len > 0 && ((char *)data)[len - 1]) { + printk(KERN_DEBUG "%s: pipeline config string " + "is not NULL terminated!\n", __func__); + ret = -EINVAL; + } else { + dsp->pipeline.inuse = 1; + dsp_cmx_hardware(dsp->conf, dsp); + ret = dsp_pipeline_build(&dsp->pipeline, + len > 0 ? (char *)data : NULL); + dsp_cmx_hardware(dsp->conf, dsp); + dsp_rx_off(dsp); + } + break; + case DSP_BF_ENABLE_KEY: /* turn blowfish on */ + if (dsp->hdlc) { + ret = -EINVAL; + break; + } + if (len < 4 || len > 56) { + ret = -EINVAL; + break; + } + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: turn blowfish on (key " + "not shown)\n", __func__); + ret = dsp_bf_init(dsp, (u8 *)data, len); + /* set new cont */ + if (!ret) + cont = DSP_BF_ACCEPT; + else + cont = DSP_BF_REJECT; + /* send indication if it worked to set it */ + nskb = _alloc_mISDN_skb(PH_CONTROL_IND, MISDN_ID_ANY, + sizeof(int), &cont, GFP_ATOMIC); + if (nskb) { + if (dsp->up) { + if (dsp->up->send(dsp->up, nskb)) + dev_kfree_skb(nskb); + } else + dev_kfree_skb(nskb); + } + if (!ret) { + dsp_cmx_hardware(dsp->conf, dsp); + dsp_dtmf_hardware(dsp); + dsp_rx_off(dsp); + } + break; + case DSP_BF_DISABLE: /* turn blowfish off */ + if (dsp->hdlc) { + ret = -EINVAL; + break; + } + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: turn blowfish off\n", __func__); + dsp_bf_cleanup(dsp); + dsp_cmx_hardware(dsp->conf, dsp); + dsp_dtmf_hardware(dsp); + dsp_rx_off(dsp); + break; + default: + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: ctrl req %x unhandled\n", + __func__, cont); + ret = -EINVAL; + } + return ret; +} + +static void +get_features(struct mISDNchannel *ch) +{ + struct dsp *dsp = container_of(ch, struct dsp, ch); + struct mISDN_ctrl_req cq; + + if (dsp_options & DSP_OPT_NOHARDWARE) + return; + if (!ch->peer) { + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: no peer, no features\n", + __func__); + return; + } + memset(&cq, 0, sizeof(cq)); + cq.op = MISDN_CTRL_GETOP; + if (ch->peer->ctrl(ch->peer, CONTROL_CHANNEL, &cq) < 0) { + printk(KERN_DEBUG "%s: CONTROL_CHANNEL failed\n", + __func__); + return; + } + if (cq.op & MISDN_CTRL_RX_OFF) + dsp->features_rx_off = 1; + if ((cq.op & MISDN_CTRL_HW_FEATURES_OP)) { + cq.op = MISDN_CTRL_HW_FEATURES; + *((u_long *)&cq.p1) = (u_long)&dsp->features; + if (ch->peer->ctrl(ch->peer, CONTROL_CHANNEL, &cq)) { + printk(KERN_DEBUG "%s: 2nd CONTROL_CHANNEL failed\n", + __func__); + } + } else + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: features not supported for %s\n", + __func__, dsp->name); +} + +static int +dsp_function(struct mISDNchannel *ch, struct sk_buff *skb) +{ + struct dsp *dsp = container_of(ch, struct dsp, ch); + struct mISDNhead *hh; + int ret = 0; + u8 *digits; + int cont; + struct sk_buff *nskb; + u_long flags; + + hh = mISDN_HEAD_P(skb); + switch (hh->prim) { + /* FROM DOWN */ + case (PH_DATA_CNF): + dsp->data_pending = 0; + /* trigger next hdlc frame, if any */ + if (dsp->hdlc) { + spin_lock_irqsave(&dsp_lock, flags); + if (dsp->b_active) + schedule_work(&dsp->workq); + spin_unlock_irqrestore(&dsp_lock, flags); + } + break; + case (PH_DATA_IND): + case (DL_DATA_IND): + if (skb->len < 1) { + ret = -EINVAL; + break; + } + if (dsp->rx_is_off) { + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: rx-data during rx_off" + " for %s\n", + __func__, dsp->name); + } + if (dsp->hdlc) { + /* hdlc */ + spin_lock_irqsave(&dsp_lock, flags); + dsp_cmx_hdlc(dsp, skb); + spin_unlock_irqrestore(&dsp_lock, flags); + if (dsp->rx_disabled) { + /* if receive is not allowed */ + break; + } + hh->prim = DL_DATA_IND; + if (dsp->up) + return dsp->up->send(dsp->up, skb); + break; + } + + /* decrypt if enabled */ + if (dsp->bf_enable) + dsp_bf_decrypt(dsp, skb->data, skb->len); + /* pipeline */ + if (dsp->pipeline.inuse) + dsp_pipeline_process_rx(&dsp->pipeline, skb->data, + skb->len); + /* change volume if requested */ + if (dsp->rx_volume) + dsp_change_volume(skb, dsp->rx_volume); + + /* check if dtmf soft decoding is turned on */ + if (dsp->dtmf.software) { + digits = dsp_dtmf_goertzel_decode(dsp, skb->data, + skb->len, (dsp_options&DSP_OPT_ULAW)?1:0); + while (*digits) { + if (dsp_debug & DEBUG_DSP_DTMF) + printk(KERN_DEBUG "%s: digit" + "(%c) to layer %s\n", + __func__, *digits, dsp->name); + cont = DTMF_TONE_VAL | *digits; + nskb = _alloc_mISDN_skb(PH_CONTROL_IND, + MISDN_ID_ANY, sizeof(int), &cont, + GFP_ATOMIC); + if (nskb) { + if (dsp->up) { + if (dsp->up->send( + dsp->up, nskb)) + dev_kfree_skb(nskb); + } else + dev_kfree_skb(nskb); + } + digits++; + } + } + /* we need to process receive data if software */ + spin_lock_irqsave(&dsp_lock, flags); + if (dsp->pcm_slot_tx < 0 && dsp->pcm_slot_rx < 0) { + /* process data from card at cmx */ + dsp_cmx_receive(dsp, skb); + } + spin_unlock_irqrestore(&dsp_lock, flags); + + if (dsp->rx_disabled) { + /* if receive is not allowed */ + break; + } + hh->prim = DL_DATA_IND; + if (dsp->up) + return dsp->up->send(dsp->up, skb); + break; + case (PH_CONTROL_IND): + if (dsp_debug & DEBUG_DSP_DTMFCOEFF) + printk(KERN_DEBUG "%s: PH_CONTROL INDICATION " + "received: %x (len %d) %s\n", __func__, + hh->id, skb->len, dsp->name); + switch (hh->id) { + case (DTMF_HFC_COEF): /* getting coefficients */ + if (!dsp->dtmf.hardware) { + if (dsp_debug & DEBUG_DSP_DTMFCOEFF) + printk(KERN_DEBUG "%s: ignoring DTMF " + "coefficients from HFC\n", + __func__); + break; + } + digits = dsp_dtmf_goertzel_decode(dsp, skb->data, + skb->len, 2); + while (*digits) { + int k; + struct sk_buff *nskb; + if (dsp_debug & DEBUG_DSP_DTMF) + printk(KERN_DEBUG "%s: digit" + "(%c) to layer %s\n", + __func__, *digits, dsp->name); + k = *digits | DTMF_TONE_VAL; + nskb = _alloc_mISDN_skb(PH_CONTROL_IND, + MISDN_ID_ANY, sizeof(int), &k, + GFP_ATOMIC); + if (nskb) { + if (dsp->up) { + if (dsp->up->send( + dsp->up, nskb)) + dev_kfree_skb(nskb); + } else + dev_kfree_skb(nskb); + } + digits++; + } + break; + case (HFC_VOL_CHANGE_TX): /* change volume */ + if (skb->len != sizeof(int)) { + ret = -EINVAL; + break; + } + spin_lock_irqsave(&dsp_lock, flags); + dsp->tx_volume = *((int *)skb->data); + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: change tx volume to " + "%d\n", __func__, dsp->tx_volume); + dsp_cmx_hardware(dsp->conf, dsp); + dsp_dtmf_hardware(dsp); + dsp_rx_off(dsp); + spin_unlock_irqrestore(&dsp_lock, flags); + break; + default: + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: ctrl ind %x unhandled " + "%s\n", __func__, hh->id, dsp->name); + ret = -EINVAL; + } + break; + case (PH_ACTIVATE_IND): + case (PH_ACTIVATE_CNF): + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: b_channel is now active %s\n", + __func__, dsp->name); + /* bchannel now active */ + spin_lock_irqsave(&dsp_lock, flags); + dsp->b_active = 1; + dsp->data_pending = 0; + dsp->rx_init = 1; + /* rx_W and rx_R will be adjusted on first frame */ + dsp->rx_W = 0; + dsp->rx_R = 0; + memset(dsp->rx_buff, 0, sizeof(dsp->rx_buff)); + dsp_cmx_hardware(dsp->conf, dsp); + dsp_dtmf_hardware(dsp); + dsp_rx_off(dsp); + spin_unlock_irqrestore(&dsp_lock, flags); + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: done with activation, sending " + "confirm to user space. %s\n", __func__, + dsp->name); + /* send activation to upper layer */ + hh->prim = DL_ESTABLISH_CNF; + if (dsp->up) + return dsp->up->send(dsp->up, skb); + break; + case (PH_DEACTIVATE_IND): + case (PH_DEACTIVATE_CNF): + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: b_channel is now inactive %s\n", + __func__, dsp->name); + /* bchannel now inactive */ + spin_lock_irqsave(&dsp_lock, flags); + dsp->b_active = 0; + dsp->data_pending = 0; + dsp_cmx_hardware(dsp->conf, dsp); + dsp_rx_off(dsp); + spin_unlock_irqrestore(&dsp_lock, flags); + hh->prim = DL_RELEASE_CNF; + if (dsp->up) + return dsp->up->send(dsp->up, skb); + break; + /* FROM UP */ + case (DL_DATA_REQ): + case (PH_DATA_REQ): + if (skb->len < 1) { + ret = -EINVAL; + break; + } + if (dsp->hdlc) { + /* hdlc */ + spin_lock_irqsave(&dsp_lock, flags); + if (dsp->b_active) { + skb_queue_tail(&dsp->sendq, skb); + schedule_work(&dsp->workq); + } + spin_unlock_irqrestore(&dsp_lock, flags); + return 0; + } + /* send data to tx-buffer (if no tone is played) */ + if (!dsp->tone.tone) { + spin_lock_irqsave(&dsp_lock, flags); + dsp_cmx_transmit(dsp, skb); + spin_unlock_irqrestore(&dsp_lock, flags); + } + break; + case (PH_CONTROL_REQ): + spin_lock_irqsave(&dsp_lock, flags); + ret = dsp_control_req(dsp, hh, skb); + spin_unlock_irqrestore(&dsp_lock, flags); + break; + case (DL_ESTABLISH_REQ): + case (PH_ACTIVATE_REQ): + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: activating b_channel %s\n", + __func__, dsp->name); + if (dsp->dtmf.hardware || dsp->dtmf.software) + dsp_dtmf_goertzel_init(dsp); + get_features(ch); + /* send ph_activate */ + hh->prim = PH_ACTIVATE_REQ; + if (ch->peer) + return ch->recv(ch->peer, skb); + break; + case (DL_RELEASE_REQ): + case (PH_DEACTIVATE_REQ): + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: releasing b_channel %s\n", + __func__, dsp->name); + spin_lock_irqsave(&dsp_lock, flags); + dsp->tone.tone = 0; + dsp->tone.hardware = 0; + dsp->tone.software = 0; + if (timer_pending(&dsp->tone.tl)) + del_timer(&dsp->tone.tl); + if (dsp->conf) + dsp_cmx_conf(dsp, 0); /* dsp_cmx_hardware will also be + called here */ + skb_queue_purge(&dsp->sendq); + spin_unlock_irqrestore(&dsp_lock, flags); + hh->prim = PH_DEACTIVATE_REQ; + if (ch->peer) + return ch->recv(ch->peer, skb); + break; + default: + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: msg %x unhandled %s\n", + __func__, hh->prim, dsp->name); + ret = -EINVAL; + } + if (!ret) + dev_kfree_skb(skb); + return ret; +} + +static int +dsp_ctrl(struct mISDNchannel *ch, u_int cmd, void *arg) +{ + struct dsp *dsp = container_of(ch, struct dsp, ch); + u_long flags; + int err = 0; + + if (debug & DEBUG_DSP_CTRL) + printk(KERN_DEBUG "%s:(%x)\n", __func__, cmd); + + switch (cmd) { + case OPEN_CHANNEL: + break; + case CLOSE_CHANNEL: + if (dsp->ch.peer) + dsp->ch.peer->ctrl(dsp->ch.peer, CLOSE_CHANNEL, NULL); + + /* wait until workqueue has finished, + * must lock here, or we may hit send-process currently + * queueing. */ + spin_lock_irqsave(&dsp_lock, flags); + dsp->b_active = 0; + spin_unlock_irqrestore(&dsp_lock, flags); + /* MUST not be locked, because it waits until queue is done. */ + cancel_work_sync(&dsp->workq); + spin_lock_irqsave(&dsp_lock, flags); + if (timer_pending(&dsp->tone.tl)) + del_timer(&dsp->tone.tl); + skb_queue_purge(&dsp->sendq); + if (dsp_debug & DEBUG_DSP_CTRL) + printk(KERN_DEBUG "%s: releasing member %s\n", + __func__, dsp->name); + dsp->b_active = 0; + dsp_cmx_conf(dsp, 0); /* dsp_cmx_hardware will also be called + here */ + dsp_pipeline_destroy(&dsp->pipeline); + + if (dsp_debug & DEBUG_DSP_CTRL) + printk(KERN_DEBUG "%s: remove & destroy object %s\n", + __func__, dsp->name); + list_del(&dsp->list); + spin_unlock_irqrestore(&dsp_lock, flags); + + if (dsp_debug & DEBUG_DSP_CTRL) + printk(KERN_DEBUG "%s: dsp instance released\n", + __func__); + vfree(dsp); + module_put(THIS_MODULE); + break; + } + return err; +} + +static void +dsp_send_bh(struct work_struct *work) +{ + struct dsp *dsp = container_of(work, struct dsp, workq); + struct sk_buff *skb; + struct mISDNhead *hh; + + if (dsp->hdlc && dsp->data_pending) + return; /* wait until data has been acknowledged */ + + /* send queued data */ + while ((skb = skb_dequeue(&dsp->sendq))) { + /* in locked date, we must have still data in queue */ + if (dsp->data_pending) { + if (dsp_debug & DEBUG_DSP_CORE) + printk(KERN_DEBUG "%s: fifo full %s, this is " + "no bug!\n", __func__, dsp->name); + /* flush transparent data, if not acked */ + dev_kfree_skb(skb); + continue; + } + hh = mISDN_HEAD_P(skb); + if (hh->prim == DL_DATA_REQ) { + /* send packet up */ + if (dsp->up) { + if (dsp->up->send(dsp->up, skb)) + dev_kfree_skb(skb); + } else + dev_kfree_skb(skb); + } else { + /* send packet down */ + if (dsp->ch.peer) { + dsp->data_pending = 1; + if (dsp->ch.recv(dsp->ch.peer, skb)) { + dev_kfree_skb(skb); + dsp->data_pending = 0; + } + } else + dev_kfree_skb(skb); + } + } +} + +static int +dspcreate(struct channel_req *crq) +{ + struct dsp *ndsp; + u_long flags; + + if (crq->protocol != ISDN_P_B_L2DSP + && crq->protocol != ISDN_P_B_L2DSPHDLC) + return -EPROTONOSUPPORT; + ndsp = vmalloc(sizeof(struct dsp)); + if (!ndsp) { + printk(KERN_ERR "%s: vmalloc struct dsp failed\n", __func__); + return -ENOMEM; + } + memset(ndsp, 0, sizeof(struct dsp)); + if (dsp_debug & DEBUG_DSP_CTRL) + printk(KERN_DEBUG "%s: creating new dsp instance\n", __func__); + + /* default enabled */ + INIT_WORK(&ndsp->workq, (void *)dsp_send_bh); + skb_queue_head_init(&ndsp->sendq); + ndsp->ch.send = dsp_function; + ndsp->ch.ctrl = dsp_ctrl; + ndsp->up = crq->ch; + crq->ch = &ndsp->ch; + if (crq->protocol == ISDN_P_B_L2DSP) { + crq->protocol = ISDN_P_B_RAW; + ndsp->hdlc = 0; + } else { + crq->protocol = ISDN_P_B_HDLC; + ndsp->hdlc = 1; + } + if (!try_module_get(THIS_MODULE)) + printk(KERN_WARNING "%s:cannot get module\n", + __func__); + + sprintf(ndsp->name, "DSP_C%x(0x%p)", + ndsp->up->st->dev->id + 1, ndsp); + /* set frame size to start */ + ndsp->features.hfc_id = -1; /* current PCM id */ + ndsp->features.pcm_id = -1; /* current PCM id */ + ndsp->pcm_slot_rx = -1; /* current CPM slot */ + ndsp->pcm_slot_tx = -1; + ndsp->pcm_bank_rx = -1; + ndsp->pcm_bank_tx = -1; + ndsp->hfc_conf = -1; /* current conference number */ + /* set tone timer */ + ndsp->tone.tl.function = (void *)dsp_tone_timeout; + ndsp->tone.tl.data = (long) ndsp; + init_timer(&ndsp->tone.tl); + + if (dtmfthreshold < 20 || dtmfthreshold > 500) + dtmfthreshold = 200; + ndsp->dtmf.treshold = dtmfthreshold*10000; + + /* init pipeline append to list */ + spin_lock_irqsave(&dsp_lock, flags); + dsp_pipeline_init(&ndsp->pipeline); + list_add_tail(&ndsp->list, &dsp_ilist); + spin_unlock_irqrestore(&dsp_lock, flags); + + return 0; +} + + +static struct Bprotocol DSP = { + .Bprotocols = (1 << (ISDN_P_B_L2DSP & ISDN_P_B_MASK)) + | (1 << (ISDN_P_B_L2DSPHDLC & ISDN_P_B_MASK)), + .name = "dsp", + .create = dspcreate +}; + +static int dsp_init(void) +{ + int err; + int tics; + + printk(KERN_INFO "DSP modul %s\n", mISDN_dsp_revision); + + dsp_options = options; + dsp_debug = debug; + + /* set packet size */ + dsp_poll = poll; + if (dsp_poll) { + if (dsp_poll > MAX_POLL) { + printk(KERN_ERR "%s: Wrong poll value (%d), use %d " + "maximum.\n", __func__, poll, MAX_POLL); + err = -EINVAL; + return err; + } + if (dsp_poll < 8) { + printk(KERN_ERR "%s: Wrong poll value (%d), use 8 " + "minimum.\n", __func__, dsp_poll); + err = -EINVAL; + return err; + } + dsp_tics = poll * HZ / 8000; + if (dsp_tics * 8000 != poll * HZ) { + printk(KERN_INFO "mISDN_dsp: Cannot clock every %d " + "samples (0,125 ms). It is not a multiple of " + "%d HZ.\n", poll, HZ); + err = -EINVAL; + return err; + } + } else { + poll = 8; + while (poll <= MAX_POLL) { + tics = poll * HZ / 8000; + if (tics * 8000 == poll * HZ) { + dsp_tics = tics; + dsp_poll = poll; + if (poll >= 64) + break; + } + poll++; + } + } + if (dsp_poll == 0) { + printk(KERN_INFO "mISDN_dsp: There is no multiple of kernel " + "clock that equals exactly the duration of 8-256 " + "samples. (Choose kernel clock speed like 100, 250, " + "300, 1000)\n"); + err = -EINVAL; + return err; + } + printk(KERN_INFO "mISDN_dsp: DSP clocks every %d samples. This equals " + "%d jiffies.\n", dsp_poll, dsp_tics); + + spin_lock_init(&dsp_lock); + INIT_LIST_HEAD(&dsp_ilist); + INIT_LIST_HEAD(&conf_ilist); + + /* init conversion tables */ + dsp_audio_generate_law_tables(); + dsp_silence = (dsp_options&DSP_OPT_ULAW)?0xff:0x2a; + dsp_audio_law_to_s32 = (dsp_options&DSP_OPT_ULAW)?dsp_audio_ulaw_to_s32: + dsp_audio_alaw_to_s32; + dsp_audio_generate_s2law_table(); + dsp_audio_generate_seven(); + dsp_audio_generate_mix_table(); + if (dsp_options & DSP_OPT_ULAW) + dsp_audio_generate_ulaw_samples(); + dsp_audio_generate_volume_changes(); + + err = dsp_pipeline_module_init(); + if (err) { + printk(KERN_ERR "mISDN_dsp: Can't initialize pipeline, " + "error(%d)\n", err); + return err; + } + + err = mISDN_register_Bprotocol(&DSP); + if (err) { + printk(KERN_ERR "Can't register %s error(%d)\n", DSP.name, err); + return err; + } + + /* set sample timer */ + dsp_spl_tl.function = (void *)dsp_cmx_send; + dsp_spl_tl.data = 0; + init_timer(&dsp_spl_tl); + dsp_spl_tl.expires = jiffies + dsp_tics; + dsp_spl_jiffies = dsp_spl_tl.expires; + add_timer(&dsp_spl_tl); + + return 0; +} + + +static void dsp_cleanup(void) +{ + mISDN_unregister_Bprotocol(&DSP); + + if (timer_pending(&dsp_spl_tl)) + del_timer(&dsp_spl_tl); + + if (!list_empty(&dsp_ilist)) { + printk(KERN_ERR "mISDN_dsp: Audio DSP object inst list not " + "empty.\n"); + } + if (!list_empty(&conf_ilist)) { + printk(KERN_ERR "mISDN_dsp: Conference list not empty. Not " + "all memory freed.\n"); + } + + dsp_pipeline_module_exit(); +} + +module_init(dsp_init); +module_exit(dsp_cleanup); + diff --git a/drivers/isdn/mISDN/dsp_dtmf.c b/drivers/isdn/mISDN/dsp_dtmf.c new file mode 100644 index 0000000..efc371c --- /dev/null +++ b/drivers/isdn/mISDN/dsp_dtmf.c @@ -0,0 +1,303 @@ +/* + * DTMF decoder. + * + * Copyright by Andreas Eversberg (jolly@eversberg.eu) + * based on different decoders such as ISDN4Linux + * + * This software may be used and distributed according to the terms + * of the GNU General Public License, incorporated herein by reference. + * + */ + +#include <linux/mISDNif.h> +#include <linux/mISDNdsp.h> +#include "core.h" +#include "dsp.h" + +#define NCOEFF 8 /* number of frequencies to be analyzed */ + +/* For DTMF recognition: + * 2 * cos(2 * PI * k / N) precalculated for all k + */ +static u64 cos2pik[NCOEFF] = +{ + /* k << 15 (source: hfc-4s/8s documentation (www.colognechip.de)) */ + 55960, 53912, 51402, 48438, 38146, 32650, 26170, 18630 +}; + +/* digit matrix */ +static char dtmf_matrix[4][4] = +{ + {'1', '2', '3', 'A'}, + {'4', '5', '6', 'B'}, + {'7', '8', '9', 'C'}, + {'*', '0', '#', 'D'} +}; + +/* dtmf detection using goertzel algorithm + * init function + */ +void dsp_dtmf_goertzel_init(struct dsp *dsp) +{ + dsp->dtmf.size = 0; + dsp->dtmf.lastwhat = '\0'; + dsp->dtmf.lastdigit = '\0'; + dsp->dtmf.count = 0; +} + +/* check for hardware or software features + */ +void dsp_dtmf_hardware(struct dsp *dsp) +{ + int hardware = 1; + + if (!dsp->features.hfc_dtmf) + hardware = 0; + + /* check for volume change */ + if (dsp->tx_volume) { + if (dsp_debug & DEBUG_DSP_DTMF) + printk(KERN_DEBUG "%s dsp %s cannot do hardware DTMF, " + "because tx_volume is changed\n", + __func__, dsp->name); + hardware = 0; + } + if (dsp->rx_volume) { + if (dsp_debug & DEBUG_DSP_DTMF) + printk(KERN_DEBUG "%s dsp %s cannot do hardware DTMF, " + "because rx_volume is changed\n", + __func__, dsp->name); + hardware = 0; + } + /* check if encryption is enabled */ + if (dsp->bf_enable) { + if (dsp_debug & DEBUG_DSP_DTMF) + printk(KERN_DEBUG "%s dsp %s cannot do hardware DTMF, " + "because encryption is enabled\n", + __func__, dsp->name); + hardware = 0; + } + /* check if pipeline exists */ + if (dsp->pipeline.inuse) { + if (dsp_debug & DEBUG_DSP_DTMF) + printk(KERN_DEBUG "%s dsp %s cannot do hardware DTMF, " + "because pipeline exists.\n", + __func__, dsp->name); + hardware = 0; + } + + dsp->dtmf.hardware = hardware; + dsp->dtmf.software = !hardware; +} + + +/************************************************************* + * calculate the coefficients of the given sample and decode * + *************************************************************/ + +/* the given sample is decoded. if the sample is not long enough for a + * complete frame, the decoding is finished and continued with the next + * call of this function. + * + * the algorithm is very good for detection with a minimum of errors. i + * tested it allot. it even works with very short tones (40ms). the only + * disadvantage is, that it doesn't work good with different volumes of both + * tones. this will happen, if accoustically coupled dialers are used. + * it sometimes detects tones during speach, which is normal for decoders. + * use sequences to given commands during calls. + * + * dtmf - points to a structure of the current dtmf state + * spl and len - the sample + * fmt - 0 = alaw, 1 = ulaw, 2 = coefficients from HFC DTMF hw-decoder + */ + +u8 +*dsp_dtmf_goertzel_decode(struct dsp *dsp, u8 *data, int len, int fmt) +{ + u8 what; + int size; + signed short *buf; + s32 sk, sk1, sk2; + int k, n, i; + s32 *hfccoeff; + s32 result[NCOEFF], tresh, treshl; + int lowgroup, highgroup; + s64 cos2pik_; + + dsp->dtmf.digits[0] = '\0'; + + /* Note: The function will loop until the buffer has not enough samples + * left to decode a full frame. + */ +again: + /* convert samples */ + size = dsp->dtmf.size; + buf = dsp->dtmf.buffer; + switch (fmt) { + case 0: /* alaw */ + case 1: /* ulaw */ + while (size < DSP_DTMF_NPOINTS && len) { + buf[size++] = dsp_audio_law_to_s32[*data++]; + len--; + } + break; + + case 2: /* HFC coefficients */ + default: + if (len < 64) { + if (len > 0) + printk(KERN_ERR "%s: coefficients have invalid " + "size. (is=%d < must=%d)\n", + __func__, len, 64); + return dsp->dtmf.digits; + } + hfccoeff = (s32 *)data; + for (k = 0; k < NCOEFF; k++) { + sk2 = (*hfccoeff++)>>4; + sk = (*hfccoeff++)>>4; + if (sk > 32767 || sk < -32767 || sk2 > 32767 + || sk2 < -32767) + printk(KERN_WARNING + "DTMF-Detection overflow\n"); + /* compute |X(k)|**2 */ + result[k] = + (sk * sk) - + (((cos2pik[k] * sk) >> 15) * sk2) + + (sk2 * sk2); + } + data += 64; + len -= 64; + goto coefficients; + break; + } + dsp->dtmf.size = size; + + if (size < DSP_DTMF_NPOINTS) + return dsp->dtmf.digits; + + dsp->dtmf.size = 0; + + /* now we have a full buffer of signed long samples - we do goertzel */ + for (k = 0; k < NCOEFF; k++) { + sk = 0; + sk1 = 0; + sk2 = 0; + buf = dsp->dtmf.buffer; + cos2pik_ = cos2pik[k]; + for (n = 0; n < DSP_DTMF_NPOINTS; n++) { + sk = ((cos2pik_*sk1)>>15) - sk2 + (*buf++); + sk2 = sk1; + sk1 = sk; + } + sk >>= 8; + sk2 >>= 8; + if (sk > 32767 || sk < -32767 || sk2 > 32767 || sk2 < -32767) + printk(KERN_WARNING "DTMF-Detection overflow\n"); + /* compute |X(k)|**2 */ + result[k] = + (sk * sk) - + (((cos2pik[k] * sk) >> 15) * sk2) + + (sk2 * sk2); + } + + /* our (squared) coefficients have been calculated, we need to process + * them. + */ +coefficients: + tresh = 0; + for (i = 0; i < NCOEFF; i++) { + if (result[i] < 0) + result[i] = 0; + if (result[i] > dsp->dtmf.treshold) { + if (result[i] > tresh) + tresh = result[i]; + } + } + + if (tresh == 0) { + what = 0; + goto storedigit; + } + + if (dsp_debug & DEBUG_DSP_DTMFCOEFF) + printk(KERN_DEBUG "a %3d %3d %3d %3d %3d %3d %3d %3d" + " tr:%3d r %3d %3d %3d %3d %3d %3d %3d %3d\n", + result[0]/10000, result[1]/10000, result[2]/10000, + result[3]/10000, result[4]/10000, result[5]/10000, + result[6]/10000, result[7]/10000, tresh/10000, + result[0]/(tresh/100), result[1]/(tresh/100), + result[2]/(tresh/100), result[3]/(tresh/100), + result[4]/(tresh/100), result[5]/(tresh/100), + result[6]/(tresh/100), result[7]/(tresh/100)); + + /* calc digit (lowgroup/highgroup) */ + lowgroup = -1; + highgroup = -1; + treshl = tresh >> 3; /* tones which are not on, must be below 9 dB */ + tresh = tresh >> 2; /* touchtones must match within 6 dB */ + for (i = 0; i < NCOEFF; i++) { + if (result[i] < treshl) + continue; /* ignore */ + if (result[i] < tresh) { + lowgroup = -1; + highgroup = -1; + break; /* noise inbetween */ + } + /* good level found. This is allowed only one time per group */ + if (i < NCOEFF/2) { + /* lowgroup */ + if (lowgroup >= 0) { + /* Bad. Another tone found. */ + lowgroup = -1; + break; + } else + lowgroup = i; + } else { + /* higroup */ + if (highgroup >= 0) { + /* Bad. Another tone found. */ + highgroup = -1; + break; + } else + highgroup = i-(NCOEFF/2); + } + } + + /* get digit or null */ + what = 0; + if (lowgroup >= 0 && highgroup >= 0) + what = dtmf_matrix[lowgroup][highgroup]; + +storedigit: + if (what && (dsp_debug & DEBUG_DSP_DTMF)) + printk(KERN_DEBUG "DTMF what: %c\n", what); + + if (dsp->dtmf.lastwhat != what) + dsp->dtmf.count = 0; + + /* the tone (or no tone) must remain 3 times without change */ + if (dsp->dtmf.count == 2) { + if (dsp->dtmf.lastdigit != what) { + dsp->dtmf.lastdigit = what; + if (what) { + if (dsp_debug & DEBUG_DSP_DTMF) + printk(KERN_DEBUG "DTMF digit: %c\n", + what); + if ((strlen(dsp->dtmf.digits)+1) + < sizeof(dsp->dtmf.digits)) { + dsp->dtmf.digits[strlen( + dsp->dtmf.digits)+1] = '\0'; + dsp->dtmf.digits[strlen( + dsp->dtmf.digits)] = what; + } + } + } + } else + dsp->dtmf.count++; + + dsp->dtmf.lastwhat = what; + + goto again; +} + + diff --git a/drivers/isdn/mISDN/dsp_ecdis.h b/drivers/isdn/mISDN/dsp_ecdis.h new file mode 100644 index 0000000..8a20af4 --- /dev/null +++ b/drivers/isdn/mISDN/dsp_ecdis.h @@ -0,0 +1,110 @@ +/* + * SpanDSP - a series of DSP components for telephony + * + * ec_disable_detector.h - A detector which should eventually meet the + * G.164/G.165 requirements for detecting the + * 2100Hz echo cancellor disable tone. + * + * Written by Steve Underwood <steveu@coppice.org> + * + * Copyright (C) 2001 Steve Underwood + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#include "dsp_biquad.h" + +struct ec_disable_detector_state { + struct biquad2_state notch; + int notch_level; + int channel_level; + int tone_present; + int tone_cycle_duration; + int good_cycles; + int hit; +}; + + +#define FALSE 0 +#define TRUE (!FALSE) + +static inline void +echo_can_disable_detector_init(struct ec_disable_detector_state *det) +{ + /* Elliptic notch */ + /* This is actually centred at 2095Hz, but gets the balance we want, due + to the asymmetric walls of the notch */ + biquad2_init(&det->notch, + (int32_t) (-0.7600000*32768.0), + (int32_t) (-0.1183852*32768.0), + (int32_t) (-0.5104039*32768.0), + (int32_t) (0.1567596*32768.0), + (int32_t) (1.0000000*32768.0)); + + det->channel_level = 0; + det->notch_level = 0; + det->tone_present = FALSE; + det->tone_cycle_duration = 0; + det->good_cycles = 0; + det->hit = 0; +} +/*- End of function --------------------------------------------------------*/ + +static inline int +echo_can_disable_detector_update(struct ec_disable_detector_state *det, +int16_t amp) +{ + int16_t notched; + + notched = biquad2(&det->notch, amp); + /* Estimate the overall energy in the channel, and the energy in + the notch (i.e. overall channel energy - tone energy => noise). + Use abs instead of multiply for speed (is it really faster?). + Damp the overall energy a little more for a stable result. + Damp the notch energy a little less, so we don't damp out the + blip every time the phase reverses */ + det->channel_level += ((abs(amp) - det->channel_level) >> 5); + det->notch_level += ((abs(notched) - det->notch_level) >> 4); + if (det->channel_level > 280) { + /* There is adequate energy in the channel. + Is it mostly at 2100Hz? */ + if (det->notch_level*6 < det->channel_level) { + /* The notch says yes, so we have the tone. */ + if (!det->tone_present) { + /* Do we get a kick every 450+-25ms? */ + if (det->tone_cycle_duration >= 425*8 + && det->tone_cycle_duration <= 475*8) { + det->good_cycles++; + if (det->good_cycles > 2) + det->hit = TRUE; + } + det->tone_cycle_duration = 0; + } + det->tone_present = TRUE; + } else + det->tone_present = FALSE; + det->tone_cycle_duration++; + } else { + det->tone_present = FALSE; + det->tone_cycle_duration = 0; + det->good_cycles = 0; + } + return det->hit; +} +/*- End of function --------------------------------------------------------*/ +/*- End of file ------------------------------------------------------------*/ diff --git a/drivers/isdn/mISDN/dsp_hwec.c b/drivers/isdn/mISDN/dsp_hwec.c new file mode 100644 index 0000000..eb892d9 --- /dev/null +++ b/drivers/isdn/mISDN/dsp_hwec.c @@ -0,0 +1,138 @@ +/* + * dsp_hwec.c: + * builtin mISDN dsp pipeline element for enabling the hw echocanceller + * + * Copyright (C) 2007, Nadi Sarrar + * + * Nadi Sarrar <nadi@beronet.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., 59 + * Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + * The full GNU General Public License is included in this distribution in the + * file called LICENSE. + * + */ + +#include <linux/kernel.h> +#include <linux/string.h> +#include <linux/mISDNdsp.h> +#include <linux/mISDNif.h> +#include "core.h" +#include "dsp.h" +#include "dsp_hwec.h" + +static struct mISDN_dsp_element_arg args[] = { + { "deftaps", "128", "Set the number of taps of cancellation." }, +}; + +static struct mISDN_dsp_element dsp_hwec_p = { + .name = "hwec", + .new = NULL, + .free = NULL, + .process_tx = NULL, + .process_rx = NULL, + .num_args = sizeof(args) / sizeof(struct mISDN_dsp_element_arg), + .args = args, +}; +struct mISDN_dsp_element *dsp_hwec = &dsp_hwec_p; + +void dsp_hwec_enable(struct dsp *dsp, const char *arg) +{ + int deftaps = 128, + len; + struct mISDN_ctrl_req cq; + + if (!dsp) { + printk(KERN_ERR "%s: failed to enable hwec: dsp is NULL\n", + __func__); + return; + } + + if (!arg) + goto _do; + + len = strlen(arg); + if (!len) + goto _do; + + { + char _dup[len + 1]; + char *dup, *tok, *name, *val; + int tmp; + + strcpy(_dup, arg); + dup = _dup; + + while ((tok = strsep(&dup, ","))) { + if (!strlen(tok)) + continue; + name = strsep(&tok, "="); + val = tok; + + if (!val) + continue; + + if (!strcmp(name, "deftaps")) { + if (sscanf(val, "%d", &tmp) == 1) + deftaps = tmp; + } + } + } + +_do: + printk(KERN_DEBUG "%s: enabling hwec with deftaps=%d\n", + __func__, deftaps); + memset(&cq, 0, sizeof(cq)); + cq.op = MISDN_CTRL_HFC_ECHOCAN_ON; + cq.p1 = deftaps; + if (!dsp->ch.peer->ctrl(&dsp->ch, CONTROL_CHANNEL, &cq)) { + printk(KERN_DEBUG "%s: CONTROL_CHANNEL failed\n", + __func__); + return; + } +} + +void dsp_hwec_disable(struct dsp *dsp) +{ + struct mISDN_ctrl_req cq; + + if (!dsp) { + printk(KERN_ERR "%s: failed to disable hwec: dsp is NULL\n", + __func__); + return; + } + + printk(KERN_DEBUG "%s: disabling hwec\n", __func__); + memset(&cq, 0, sizeof(cq)); + cq.op = MISDN_CTRL_HFC_ECHOCAN_OFF; + if (!dsp->ch.peer->ctrl(&dsp->ch, CONTROL_CHANNEL, &cq)) { + printk(KERN_DEBUG "%s: CONTROL_CHANNEL failed\n", + __func__); + return; + } +} + +int dsp_hwec_init(void) +{ + mISDN_dsp_element_register(dsp_hwec); + + return 0; +} + +void dsp_hwec_exit(void) +{ + mISDN_dsp_element_unregister(dsp_hwec); +} + diff --git a/drivers/isdn/mISDN/dsp_hwec.h b/drivers/isdn/mISDN/dsp_hwec.h new file mode 100644 index 0000000..eebe80c --- /dev/null +++ b/drivers/isdn/mISDN/dsp_hwec.h @@ -0,0 +1,10 @@ +/* + * dsp_hwec.h + */ + +extern struct mISDN_dsp_element *dsp_hwec; +extern void dsp_hwec_enable(struct dsp *dsp, const char *arg); +extern void dsp_hwec_disable(struct dsp *dsp); +extern int dsp_hwec_init(void); +extern void dsp_hwec_exit(void); + diff --git a/drivers/isdn/mISDN/dsp_pipeline.c b/drivers/isdn/mISDN/dsp_pipeline.c new file mode 100644 index 0000000..850260a --- /dev/null +++ b/drivers/isdn/mISDN/dsp_pipeline.c @@ -0,0 +1,348 @@ +/* + * dsp_pipeline.c: pipelined audio processing + * + * Copyright (C) 2007, Nadi Sarrar + * + * Nadi Sarrar <nadi@beronet.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., 59 + * Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + * The full GNU General Public License is included in this distribution in the + * file called LICENSE. + * + */ + +#include <linux/kernel.h> +#include <linux/list.h> +#include <linux/string.h> +#include <linux/mISDNif.h> +#include <linux/mISDNdsp.h> +#include "dsp.h" +#include "dsp_hwec.h" + +/* uncomment for debugging */ +/*#define PIPELINE_DEBUG*/ + +struct dsp_pipeline_entry { + struct mISDN_dsp_element *elem; + void *p; + struct list_head list; +}; +struct dsp_element_entry { + struct mISDN_dsp_element *elem; + struct device dev; + struct list_head list; +}; + +static LIST_HEAD(dsp_elements); + +/* sysfs */ +static struct class *elements_class; + +static ssize_t +attr_show_args(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct mISDN_dsp_element *elem = dev_get_drvdata(dev); + ssize_t len = 0; + int i = 0; + + *buf = 0; + for (; i < elem->num_args; ++i) + len = sprintf(buf, "%sName: %s\n%s%s%sDescription: %s\n" + "\n", buf, + elem->args[i].name, + elem->args[i].def ? "Default: " : "", + elem->args[i].def ? elem->args[i].def : "", + elem->args[i].def ? "\n" : "", + elem->args[i].desc); + + return len; +} + +static struct device_attribute element_attributes[] = { + __ATTR(args, 0444, attr_show_args, NULL), +}; + +int mISDN_dsp_element_register(struct mISDN_dsp_element *elem) +{ + struct dsp_element_entry *entry; + int ret, i; + + if (!elem) + return -EINVAL; + + entry = kzalloc(sizeof(struct dsp_element_entry), GFP_KERNEL); + if (!entry) + return -ENOMEM; + + entry->elem = elem; + + entry->dev.class = elements_class; + dev_set_drvdata(&entry->dev, elem); + snprintf(entry->dev.bus_id, BUS_ID_SIZE, elem->name); + ret = device_register(&entry->dev); + if (ret) { + printk(KERN_ERR "%s: failed to register %s\n", + __func__, elem->name); + goto err1; + } + + for (i = 0; i < (sizeof(element_attributes) + / sizeof(struct device_attribute)); ++i) + ret = device_create_file(&entry->dev, + &element_attributes[i]); + if (ret) { + printk(KERN_ERR "%s: failed to create device file\n", + __func__); + goto err2; + } + + list_add_tail(&entry->list, &dsp_elements); + + printk(KERN_DEBUG "%s: %s registered\n", __func__, elem->name); + + return 0; + +err2: + device_unregister(&entry->dev); +err1: + kfree(entry); + return ret; +} +EXPORT_SYMBOL(mISDN_dsp_element_register); + +void mISDN_dsp_element_unregister(struct mISDN_dsp_element *elem) +{ + struct dsp_element_entry *entry, *n; + + if (!elem) + return; + + list_for_each_entry_safe(entry, n, &dsp_elements, list) + if (entry->elem == elem) { + list_del(&entry->list); + device_unregister(&entry->dev); + kfree(entry); + printk(KERN_DEBUG "%s: %s unregistered\n", + __func__, elem->name); + return; + } + printk(KERN_ERR "%s: element %s not in list.\n", __func__, elem->name); +} +EXPORT_SYMBOL(mISDN_dsp_element_unregister); + +int dsp_pipeline_module_init(void) +{ + elements_class = class_create(THIS_MODULE, "dsp_pipeline"); + if (IS_ERR(elements_class)) + return PTR_ERR(elements_class); + +#ifdef PIPELINE_DEBUG + printk(KERN_DEBUG "%s: dsp pipeline module initialized\n", __func__); +#endif + + dsp_hwec_init(); + + return 0; +} + +void dsp_pipeline_module_exit(void) +{ + struct dsp_element_entry *entry, *n; + + dsp_hwec_exit(); + + class_destroy(elements_class); + + list_for_each_entry_safe(entry, n, &dsp_elements, list) { + list_del(&entry->list); + printk(KERN_WARNING "%s: element was still registered: %s\n", + __func__, entry->elem->name); + kfree(entry); + } + + printk(KERN_DEBUG "%s: dsp pipeline module exited\n", __func__); +} + +int dsp_pipeline_init(struct dsp_pipeline *pipeline) +{ + if (!pipeline) + return -EINVAL; + + INIT_LIST_HEAD(&pipeline->list); + +#ifdef PIPELINE_DEBUG + printk(KERN_DEBUG "%s: dsp pipeline ready\n", __func__); +#endif + + return 0; +} + +static inline void _dsp_pipeline_destroy(struct dsp_pipeline *pipeline) +{ + struct dsp_pipeline_entry *entry, *n; + + list_for_each_entry_safe(entry, n, &pipeline->list, list) { + list_del(&entry->list); + if (entry->elem == dsp_hwec) + dsp_hwec_disable(container_of(pipeline, struct dsp, + pipeline)); + else + entry->elem->free(entry->p); + kfree(entry); + } +} + +void dsp_pipeline_destroy(struct dsp_pipeline *pipeline) +{ + + if (!pipeline) + return; + + _dsp_pipeline_destroy(pipeline); + +#ifdef PIPELINE_DEBUG + printk(KERN_DEBUG "%s: dsp pipeline destroyed\n", __func__); +#endif +} + +int dsp_pipeline_build(struct dsp_pipeline *pipeline, const char *cfg) +{ + int len, incomplete = 0, found = 0; + char *dup, *tok, *name, *args; + struct dsp_element_entry *entry, *n; + struct dsp_pipeline_entry *pipeline_entry; + struct mISDN_dsp_element *elem; + + if (!pipeline) + return -EINVAL; + + if (!list_empty(&pipeline->list)) + _dsp_pipeline_destroy(pipeline); + + if (!cfg) + return 0; + + len = strlen(cfg); + if (!len) + return 0; + + dup = kmalloc(len + 1, GFP_KERNEL); + if (!dup) + return 0; + strcpy(dup, cfg); + while ((tok = strsep(&dup, "|"))) { + if (!strlen(tok)) + continue; + name = strsep(&tok, "("); + args = strsep(&tok, ")"); + if (args && !*args) + args = 0; + + list_for_each_entry_safe(entry, n, &dsp_elements, list) + if (!strcmp(entry->elem->name, name)) { + elem = entry->elem; + + pipeline_entry = kmalloc(sizeof(struct + dsp_pipeline_entry), GFP_KERNEL); + if (!pipeline_entry) { + printk(KERN_DEBUG "%s: failed to add " + "entry to pipeline: %s (out of " + "memory)\n", __func__, elem->name); + incomplete = 1; + goto _out; + } + pipeline_entry->elem = elem; + + if (elem == dsp_hwec) { + /* This is a hack to make the hwec + available as a pipeline module */ + dsp_hwec_enable(container_of(pipeline, + struct dsp, pipeline), args); + list_add_tail(&pipeline_entry->list, + &pipeline->list); + } else { + pipeline_entry->p = elem->new(args); + if (pipeline_entry->p) { + list_add_tail(&pipeline_entry-> + list, &pipeline->list); +#ifdef PIPELINE_DEBUG + printk(KERN_DEBUG "%s: created " + "instance of %s%s%s\n", + __func__, name, args ? + " with args " : "", args ? + args : ""); +#endif + } else { + printk(KERN_DEBUG "%s: failed " + "to add entry to pipeline: " + "%s (new() returned NULL)\n", + __func__, elem->name); + kfree(pipeline_entry); + incomplete = 1; + } + } + found = 1; + break; + } + + if (found) + found = 0; + else { + printk(KERN_DEBUG "%s: element not found, skipping: " + "%s\n", __func__, name); + incomplete = 1; + } + } + +_out: + if (!list_empty(&pipeline->list)) + pipeline->inuse = 1; + else + pipeline->inuse = 0; + +#ifdef PIPELINE_DEBUG + printk(KERN_DEBUG "%s: dsp pipeline built%s: %s\n", + __func__, incomplete ? " incomplete" : "", cfg); +#endif + kfree(dup); + return 0; +} + +void dsp_pipeline_process_tx(struct dsp_pipeline *pipeline, u8 *data, int len) +{ + struct dsp_pipeline_entry *entry; + + if (!pipeline) + return; + + list_for_each_entry(entry, &pipeline->list, list) + if (entry->elem->process_tx) + entry->elem->process_tx(entry->p, data, len); +} + +void dsp_pipeline_process_rx(struct dsp_pipeline *pipeline, u8 *data, int len) +{ + struct dsp_pipeline_entry *entry; + + if (!pipeline) + return; + + list_for_each_entry_reverse(entry, &pipeline->list, list) + if (entry->elem->process_rx) + entry->elem->process_rx(entry->p, data, len); +} + + diff --git a/drivers/isdn/mISDN/dsp_tones.c b/drivers/isdn/mISDN/dsp_tones.c new file mode 100644 index 0000000..23dd0dd --- /dev/null +++ b/drivers/isdn/mISDN/dsp_tones.c @@ -0,0 +1,551 @@ +/* + * Audio support data for ISDN4Linux. + * + * Copyright Andreas Eversberg (jolly@eversberg.eu) + * + * This software may be used and distributed according to the terms + * of the GNU General Public License, incorporated herein by reference. + * + */ + +#include <linux/mISDNif.h> +#include <linux/mISDNdsp.h> +#include "core.h" +#include "dsp.h" + + +#define DATA_S sample_silence +#define SIZE_S (&sizeof_silence) +#define DATA_GA sample_german_all +#define SIZE_GA (&sizeof_german_all) +#define DATA_GO sample_german_old +#define SIZE_GO (&sizeof_german_old) +#define DATA_DT sample_american_dialtone +#define SIZE_DT (&sizeof_american_dialtone) +#define DATA_RI sample_american_ringing +#define SIZE_RI (&sizeof_american_ringing) +#define DATA_BU sample_american_busy +#define SIZE_BU (&sizeof_american_busy) +#define DATA_S1 sample_special1 +#define SIZE_S1 (&sizeof_special1) +#define DATA_S2 sample_special2 +#define SIZE_S2 (&sizeof_special2) +#define DATA_S3 sample_special3 +#define SIZE_S3 (&sizeof_special3) + +/***************/ +/* tones loops */ +/***************/ + +/* all tones are alaw encoded */ +/* the last sample+1 is in phase with the first sample. the error is low */ + +static u8 sample_german_all[] = { + 0x80, 0xab, 0x81, 0x6d, 0xfd, 0xdd, 0x5d, 0x9d, + 0x4d, 0xd1, 0x89, 0x88, 0xd0, 0x4c, 0x9c, 0x5c, + 0xdc, 0xfc, 0x6c, + 0x80, 0xab, 0x81, 0x6d, 0xfd, 0xdd, 0x5d, 0x9d, + 0x4d, 0xd1, 0x89, 0x88, 0xd0, 0x4c, 0x9c, 0x5c, + 0xdc, 0xfc, 0x6c, + 0x80, 0xab, 0x81, 0x6d, 0xfd, 0xdd, 0x5d, 0x9d, + 0x4d, 0xd1, 0x89, 0x88, 0xd0, 0x4c, 0x9c, 0x5c, + 0xdc, 0xfc, 0x6c, + 0x80, 0xab, 0x81, 0x6d, 0xfd, 0xdd, 0x5d, 0x9d, + 0x4d, 0xd1, 0x89, 0x88, 0xd0, 0x4c, 0x9c, 0x5c, + 0xdc, 0xfc, 0x6c, +}; +static u32 sizeof_german_all = sizeof(sample_german_all); + +static u8 sample_german_old[] = { + 0xec, 0x68, 0xe1, 0x6d, 0x6d, 0x91, 0x51, 0xed, + 0x6d, 0x01, 0x1e, 0x10, 0x0c, 0x90, 0x60, 0x70, + 0x8c, + 0xec, 0x68, 0xe1, 0x6d, 0x6d, 0x91, 0x51, 0xed, + 0x6d, 0x01, 0x1e, 0x10, 0x0c, 0x90, 0x60, 0x70, + 0x8c, + 0xec, 0x68, 0xe1, 0x6d, 0x6d, 0x91, 0x51, 0xed, + 0x6d, 0x01, 0x1e, 0x10, 0x0c, 0x90, 0x60, 0x70, + 0x8c, + 0xec, 0x68, 0xe1, 0x6d, 0x6d, 0x91, 0x51, 0xed, + 0x6d, 0x01, 0x1e, 0x10, 0x0c, 0x90, 0x60, 0x70, + 0x8c, +}; +static u32 sizeof_german_old = sizeof(sample_german_old); + +static u8 sample_american_dialtone[] = { + 0x2a, 0x18, 0x90, 0x6c, 0x4c, 0xbc, 0x4c, 0x6c, + 0x10, 0x58, 0x32, 0xb9, 0x31, 0x2d, 0x8d, 0x0d, + 0x8d, 0x2d, 0x31, 0x99, 0x0f, 0x28, 0x60, 0xf0, + 0xd0, 0x50, 0xd0, 0x30, 0x60, 0x08, 0x8e, 0x67, + 0x09, 0x19, 0x21, 0xe1, 0xd9, 0xb9, 0x29, 0x67, + 0x83, 0x02, 0xce, 0xbe, 0xee, 0x1a, 0x1b, 0xef, + 0xbf, 0xcf, 0x03, 0x82, 0x66, 0x28, 0xb8, 0xd8, + 0xe0, 0x20, 0x18, 0x08, 0x66, 0x8f, 0x09, 0x61, + 0x31, 0xd1, 0x51, 0xd1, 0xf1, 0x61, 0x29, 0x0e, + 0x98, 0x30, 0x2c, 0x8c, 0x0c, 0x8c, 0x2c, 0x30, + 0xb8, 0x33, 0x59, 0x11, 0x6d, 0x4d, 0xbd, 0x4d, + 0x6d, 0x91, 0x19, +}; +static u32 sizeof_american_dialtone = sizeof(sample_american_dialtone); + +static u8 sample_american_ringing[] = { + 0x2a, 0xe0, 0xac, 0x0c, 0xbc, 0x4c, 0x8c, 0x90, + 0x48, 0xc7, 0xc1, 0xed, 0xcd, 0x4d, 0xcd, 0xed, + 0xc1, 0xb7, 0x08, 0x30, 0xec, 0xcc, 0xcc, 0x8c, + 0x10, 0x58, 0x1a, 0x99, 0x71, 0xed, 0x8d, 0x8d, + 0x2d, 0x41, 0x89, 0x9e, 0x20, 0x70, 0x2c, 0xec, + 0x2c, 0x70, 0x20, 0x86, 0x77, 0xe1, 0x31, 0x11, + 0xd1, 0xf1, 0x81, 0x09, 0xa3, 0x56, 0x58, 0x00, + 0x40, 0xc0, 0x60, 0x38, 0x46, 0x43, 0x57, 0x39, + 0xd9, 0x59, 0x99, 0xc9, 0x77, 0x2f, 0x2e, 0xc6, + 0xd6, 0x28, 0xd6, 0x36, 0x26, 0x2e, 0x8a, 0xa3, + 0x43, 0x63, 0x4b, 0x4a, 0x62, 0x42, 0xa2, 0x8b, + 0x2f, 0x27, 0x37, 0xd7, 0x29, 0xd7, 0xc7, 0x2f, + 0x2e, 0x76, 0xc8, 0x98, 0x58, 0xd8, 0x38, 0x56, + 0x42, 0x47, 0x39, 0x61, 0xc1, 0x41, 0x01, 0x59, + 0x57, 0xa2, 0x08, 0x80, 0xf0, 0xd0, 0x10, 0x30, + 0xe0, 0x76, 0x87, 0x21, 0x71, 0x2d, 0xed, 0x2d, + 0x71, 0x21, 0x9f, 0x88, 0x40, 0x2c, 0x8c, 0x8c, + 0xec, 0x70, 0x98, 0x1b, 0x59, 0x11, 0x8d, 0xcd, + 0xcd, 0xed, 0x31, 0x09, 0xb6, 0xc0, 0xec, 0xcc, + 0x4c, 0xcc, 0xec, 0xc0, 0xc6, 0x49, 0x91, 0x8d, + 0x4d, 0xbd, 0x0d, 0xad, 0xe1, +}; +static u32 sizeof_american_ringing = sizeof(sample_american_ringing); + +static u8 sample_american_busy[] = { + 0x2a, 0x00, 0x6c, 0x4c, 0x4c, 0x6c, 0xb0, 0x66, + 0x99, 0x11, 0x6d, 0x8d, 0x2d, 0x41, 0xd7, 0x96, + 0x60, 0xf0, 0x70, 0x40, 0x58, 0xf6, 0x53, 0x57, + 0x09, 0x89, 0xd7, 0x5f, 0xe3, 0x2a, 0xe3, 0x5f, + 0xd7, 0x89, 0x09, 0x57, 0x53, 0xf6, 0x58, 0x40, + 0x70, 0xf0, 0x60, 0x96, 0xd7, 0x41, 0x2d, 0x8d, + 0x6d, 0x11, 0x99, 0x66, 0xb0, 0x6c, 0x4c, 0x4c, + 0x6c, 0x00, 0x2a, 0x01, 0x6d, 0x4d, 0x4d, 0x6d, + 0xb1, 0x67, 0x98, 0x10, 0x6c, 0x8c, 0x2c, 0x40, + 0xd6, 0x97, 0x61, 0xf1, 0x71, 0x41, 0x59, 0xf7, + 0x52, 0x56, 0x08, 0x88, 0xd6, 0x5e, 0xe2, 0x2a, + 0xe2, 0x5e, 0xd6, 0x88, 0x08, 0x56, 0x52, 0xf7, + 0x59, 0x41, 0x71, 0xf1, 0x61, 0x97, 0xd6, 0x40, + 0x2c, 0x8c, 0x6c, 0x10, 0x98, 0x67, 0xb1, 0x6d, + 0x4d, 0x4d, 0x6d, 0x01, +}; +static u32 sizeof_american_busy = sizeof(sample_american_busy); + +static u8 sample_special1[] = { + 0x2a, 0x2c, 0xbc, 0x6c, 0xd6, 0x71, 0xbd, 0x0d, + 0xd9, 0x80, 0xcc, 0x4c, 0x40, 0x39, 0x0d, 0xbd, + 0x11, 0x86, 0xec, 0xbc, 0xec, 0x0e, 0x51, 0xbd, + 0x8d, 0x89, 0x30, 0x4c, 0xcc, 0xe0, 0xe1, 0xcd, + 0x4d, 0x31, 0x88, 0x8c, 0xbc, 0x50, 0x0f, 0xed, + 0xbd, 0xed, 0x87, 0x10, 0xbc, 0x0c, 0x38, 0x41, + 0x4d, 0xcd, 0x81, 0xd8, 0x0c, 0xbc, 0x70, 0xd7, + 0x6d, 0xbd, 0x2d, +}; +static u32 sizeof_special1 = sizeof(sample_special1); + +static u8 sample_special2[] = { + 0x2a, 0xcc, 0x8c, 0xd7, 0x4d, 0x2d, 0x18, 0xbc, + 0x10, 0xc1, 0xbd, 0xc1, 0x10, 0xbc, 0x18, 0x2d, + 0x4d, 0xd7, 0x8c, 0xcc, 0x2a, 0xcd, 0x8d, 0xd6, + 0x4c, 0x2c, 0x19, 0xbd, 0x11, 0xc0, 0xbc, 0xc0, + 0x11, 0xbd, 0x19, 0x2c, 0x4c, 0xd6, 0x8d, 0xcd, + 0x2a, 0xcc, 0x8c, 0xd7, 0x4d, 0x2d, 0x18, 0xbc, + 0x10, 0xc1, 0xbd, 0xc1, 0x10, 0xbc, 0x18, 0x2d, + 0x4d, 0xd7, 0x8c, 0xcc, 0x2a, 0xcd, 0x8d, 0xd6, + 0x4c, 0x2c, 0x19, 0xbd, 0x11, 0xc0, 0xbc, 0xc0, + 0x11, 0xbd, 0x19, 0x2c, 0x4c, 0xd6, 0x8d, 0xcd, +}; +static u32 sizeof_special2 = sizeof(sample_special2); + +static u8 sample_special3[] = { + 0x2a, 0xbc, 0x18, 0xcd, 0x11, 0x2c, 0x8c, 0xc1, + 0x4d, 0xd6, 0xbc, 0xd6, 0x4d, 0xc1, 0x8c, 0x2c, + 0x11, 0xcd, 0x18, 0xbc, 0x2a, 0xbd, 0x19, 0xcc, + 0x10, 0x2d, 0x8d, 0xc0, 0x4c, 0xd7, 0xbd, 0xd7, + 0x4c, 0xc0, 0x8d, 0x2d, 0x10, 0xcc, 0x19, 0xbd, + 0x2a, 0xbc, 0x18, 0xcd, 0x11, 0x2c, 0x8c, 0xc1, + 0x4d, 0xd6, 0xbc, 0xd6, 0x4d, 0xc1, 0x8c, 0x2c, + 0x11, 0xcd, 0x18, 0xbc, 0x2a, 0xbd, 0x19, 0xcc, + 0x10, 0x2d, 0x8d, 0xc0, 0x4c, 0xd7, 0xbd, 0xd7, + 0x4c, 0xc0, 0x8d, 0x2d, 0x10, 0xcc, 0x19, 0xbd, +}; +static u32 sizeof_special3 = sizeof(sample_special3); + +static u8 sample_silence[] = { + 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, + 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, + 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, + 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, + 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, + 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, + 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, + 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, + 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, + 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, + 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, + 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, +}; +static u32 sizeof_silence = sizeof(sample_silence); + +struct tones_samples { + u32 *len; + u8 *data; +}; +static struct +tones_samples samples[] = { + {&sizeof_german_all, sample_german_all}, + {&sizeof_german_old, sample_german_old}, + {&sizeof_american_dialtone, sample_american_dialtone}, + {&sizeof_american_ringing, sample_american_ringing}, + {&sizeof_american_busy, sample_american_busy}, + {&sizeof_special1, sample_special1}, + {&sizeof_special2, sample_special2}, + {&sizeof_special3, sample_special3}, + {NULL, NULL}, +}; + +/*********************************** + * generate ulaw from alaw samples * + ***********************************/ + +void +dsp_audio_generate_ulaw_samples(void) +{ + int i, j; + + i = 0; + while (samples[i].len) { + j = 0; + while (j < (*samples[i].len)) { + samples[i].data[j] = + dsp_audio_alaw_to_ulaw[samples[i].data[j]]; + j++; + } + i++; + } +} + + +/**************************** + * tone sequence definition * + ****************************/ + +struct pattern { + int tone; + u8 *data[10]; + u32 *siz[10]; + u32 seq[10]; +} pattern[] = { + {TONE_GERMAN_DIALTONE, + {DATA_GA, 0, 0, 0, 0, 0, 0, 0, 0, 0}, + {SIZE_GA, 0, 0, 0, 0, 0, 0, 0, 0, 0}, + {1900, 0, 0, 0, 0, 0, 0, 0, 0, 0} }, + + {TONE_GERMAN_OLDDIALTONE, + {DATA_GO, 0, 0, 0, 0, 0, 0, 0, 0, 0}, + {SIZE_GO, 0, 0, 0, 0, 0, 0, 0, 0, 0}, + {1998, 0, 0, 0, 0, 0, 0, 0, 0, 0} }, + + {TONE_AMERICAN_DIALTONE, + {DATA_DT, 0, 0, 0, 0, 0, 0, 0, 0, 0}, + {SIZE_DT, 0, 0, 0, 0, 0, 0, 0, 0, 0}, + {8000, 0, 0, 0, 0, 0, 0, 0, 0, 0} }, + + {TONE_GERMAN_DIALPBX, + {DATA_GA, DATA_S, DATA_GA, DATA_S, DATA_GA, DATA_S, 0, 0, 0, 0}, + {SIZE_GA, SIZE_S, SIZE_GA, SIZE_S, SIZE_GA, SIZE_S, 0, 0, 0, 0}, + {2000, 2000, 2000, 2000, 2000, 12000, 0, 0, 0, 0} }, + + {TONE_GERMAN_OLDDIALPBX, + {DATA_GO, DATA_S, DATA_GO, DATA_S, DATA_GO, DATA_S, 0, 0, 0, 0}, + {SIZE_GO, SIZE_S, SIZE_GO, SIZE_S, SIZE_GO, SIZE_S, 0, 0, 0, 0}, + {2000, 2000, 2000, 2000, 2000, 12000, 0, 0, 0, 0} }, + + {TONE_AMERICAN_DIALPBX, + {DATA_DT, DATA_S, DATA_DT, DATA_S, DATA_DT, DATA_S, 0, 0, 0, 0}, + {SIZE_DT, SIZE_S, SIZE_DT, SIZE_S, SIZE_DT, SIZE_S, 0, 0, 0, 0}, + {2000, 2000, 2000, 2000, 2000, 12000, 0, 0, 0, 0} }, + + {TONE_GERMAN_RINGING, + {DATA_GA, DATA_S, 0, 0, 0, 0, 0, 0, 0, 0}, + {SIZE_GA, SIZE_S, 0, 0, 0, 0, 0, 0, 0, 0}, + {8000, 32000, 0, 0, 0, 0, 0, 0, 0, 0} }, + + {TONE_GERMAN_OLDRINGING, + {DATA_GO, DATA_S, 0, 0, 0, 0, 0, 0, 0, 0}, + {SIZE_GO, SIZE_S, 0, 0, 0, 0, 0, 0, 0, 0}, + {8000, 40000, 0, 0, 0, 0, 0, 0, 0, 0} }, + + {TONE_AMERICAN_RINGING, + {DATA_RI, DATA_S, 0, 0, 0, 0, 0, 0, 0, 0}, + {SIZE_RI, SIZE_S, 0, 0, 0, 0, 0, 0, 0, 0}, + {8000, 32000, 0, 0, 0, 0, 0, 0, 0, 0} }, + + {TONE_GERMAN_RINGPBX, + {DATA_GA, DATA_S, DATA_GA, DATA_S, 0, 0, 0, 0, 0, 0}, + {SIZE_GA, SIZE_S, SIZE_GA, SIZE_S, 0, 0, 0, 0, 0, 0}, + {4000, 4000, 4000, 28000, 0, 0, 0, 0, 0, 0} }, + + {TONE_GERMAN_OLDRINGPBX, + {DATA_GO, DATA_S, DATA_GO, DATA_S, 0, 0, 0, 0, 0, 0}, + {SIZE_GO, SIZE_S, SIZE_GO, SIZE_S, 0, 0, 0, 0, 0, 0}, + {4000, 4000, 4000, 28000, 0, 0, 0, 0, 0, 0} }, + + {TONE_AMERICAN_RINGPBX, + {DATA_RI, DATA_S, DATA_RI, DATA_S, 0, 0, 0, 0, 0, 0}, + {SIZE_RI, SIZE_S, SIZE_RI, SIZE_S, 0, 0, 0, 0, 0, 0}, + {4000, 4000, 4000, 28000, 0, 0, 0, 0, 0, 0} }, + + {TONE_GERMAN_BUSY, + {DATA_GA, DATA_S, 0, 0, 0, 0, 0, 0, 0, 0}, + {SIZE_GA, SIZE_S, 0, 0, 0, 0, 0, 0, 0, 0}, + {4000, 4000, 0, 0, 0, 0, 0, 0, 0, 0} }, + + {TONE_GERMAN_OLDBUSY, + {DATA_GO, DATA_S, 0, 0, 0, 0, 0, 0, 0, 0}, + {SIZE_GO, SIZE_S, 0, 0, 0, 0, 0, 0, 0, 0}, + {1000, 5000, 0, 0, 0, 0, 0, 0, 0, 0} }, + + {TONE_AMERICAN_BUSY, + {DATA_BU, DATA_S, 0, 0, 0, 0, 0, 0, 0, 0}, + {SIZE_BU, SIZE_S, 0, 0, 0, 0, 0, 0, 0, 0}, + {4000, 4000, 0, 0, 0, 0, 0, 0, 0, 0} }, + + {TONE_GERMAN_HANGUP, + {DATA_GA, DATA_S, 0, 0, 0, 0, 0, 0, 0, 0}, + {SIZE_GA, SIZE_S, 0, 0, 0, 0, 0, 0, 0, 0}, + {4000, 4000, 0, 0, 0, 0, 0, 0, 0, 0} }, + + {TONE_GERMAN_OLDHANGUP, + {DATA_GO, DATA_S, 0, 0, 0, 0, 0, 0, 0, 0}, + {SIZE_GO, SIZE_S, 0, 0, 0, 0, 0, 0, 0, 0}, + {1000, 5000, 0, 0, 0, 0, 0, 0, 0, 0} }, + + {TONE_AMERICAN_HANGUP, + {DATA_DT, 0, 0, 0, 0, 0, 0, 0, 0, 0}, + {SIZE_DT, 0, 0, 0, 0, 0, 0, 0, 0, 0}, + {8000, 0, 0, 0, 0, 0, 0, 0, 0, 0} }, + + {TONE_SPECIAL_INFO, + {DATA_S1, DATA_S2, DATA_S3, DATA_S, 0, 0, 0, 0, 0, 0}, + {SIZE_S1, SIZE_S2, SIZE_S3, SIZE_S, 0, 0, 0, 0, 0, 0}, + {2666, 2666, 2666, 8002, 0, 0, 0, 0, 0, 0} }, + + {TONE_GERMAN_GASSENBESETZT, + {DATA_GA, DATA_S, 0, 0, 0, 0, 0, 0, 0, 0}, + {SIZE_GA, SIZE_S, 0, 0, 0, 0, 0, 0, 0, 0}, + {2000, 2000, 0, 0, 0, 0, 0, 0, 0, 0} }, + + {TONE_GERMAN_AUFSCHALTTON, + {DATA_GO, DATA_S, DATA_GO, DATA_S, 0, 0, 0, 0, 0, 0}, + {SIZE_GO, SIZE_S, SIZE_GO, SIZE_S, 0, 0, 0, 0, 0, 0}, + {1000, 5000, 1000, 17000, 0, 0, 0, 0, 0, 0} }, + + {0, + {0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, + {0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, + {0, 0, 0, 0, 0, 0, 0, 0, 0, 0} }, +}; + +/****************** + * copy tone data * + ******************/ + +/* an sk_buff is generated from the number of samples needed. + * the count will be changed and may begin from 0 each pattern period. + * the clue is to precalculate the pointers and legths to use only one + * memcpy per function call, or two memcpy if the tone sequence changes. + * + * pattern - the type of the pattern + * count - the sample from the beginning of the pattern (phase) + * len - the number of bytes + * + * return - the sk_buff with the sample + * + * if tones has finished (e.g. knocking tone), dsp->tones is turned off + */ +void dsp_tone_copy(struct dsp *dsp, u8 *data, int len) +{ + int index, count, start, num; + struct pattern *pat; + struct dsp_tone *tone = &dsp->tone; + + /* if we have no tone, we copy silence */ + if (!tone->tone) { + memset(data, dsp_silence, len); + return; + } + + /* process pattern */ + pat = (struct pattern *)tone->pattern; + /* points to the current pattern */ + index = tone->index; /* gives current sequence index */ + count = tone->count; /* gives current sample */ + + /* copy sample */ + while (len) { + /* find sample to start with */ + while (42) { + /* warp arround */ + if (!pat->seq[index]) { + count = 0; + index = 0; + } + /* check if we are currently playing this tone */ + if (count < pat->seq[index]) + break; + if (dsp_debug & DEBUG_DSP_TONE) + printk(KERN_DEBUG "%s: reaching next sequence " + "(index=%d)\n", __func__, index); + count -= pat->seq[index]; + index++; + } + /* calculate start and number of samples */ + start = count % (*(pat->siz[index])); + num = len; + if (num+count > pat->seq[index]) + num = pat->seq[index] - count; + if (num+start > (*(pat->siz[index]))) + num = (*(pat->siz[index])) - start; + /* copy memory */ + memcpy(data, pat->data[index]+start, num); + /* reduce length */ + data += num; + count += num; + len -= num; + } + tone->index = index; + tone->count = count; + + /* return sk_buff */ + return; +} + + +/******************************* + * send HW message to hfc card * + *******************************/ + +static void +dsp_tone_hw_message(struct dsp *dsp, u8 *sample, int len) +{ + struct sk_buff *nskb; + + /* unlocking is not required, because we don't expect a response */ + nskb = _alloc_mISDN_skb(PH_CONTROL_REQ, + (len)?HFC_SPL_LOOP_ON:HFC_SPL_LOOP_OFF, len, sample, + GFP_ATOMIC); + if (nskb) { + if (dsp->ch.peer) { + if (dsp->ch.recv(dsp->ch.peer, nskb)) + dev_kfree_skb(nskb); + } else + dev_kfree_skb(nskb); + } +} + + +/***************** + * timer expires * + *****************/ +void +dsp_tone_timeout(void *arg) +{ + struct dsp *dsp = arg; + struct dsp_tone *tone = &dsp->tone; + struct pattern *pat = (struct pattern *)tone->pattern; + int index = tone->index; + + if (!tone->tone) + return; + + index++; + if (!pat->seq[index]) + index = 0; + tone->index = index; + + /* set next tone */ + if (pat->data[index] == DATA_S) + dsp_tone_hw_message(dsp, 0, 0); + else + dsp_tone_hw_message(dsp, pat->data[index], *(pat->siz[index])); + /* set timer */ + init_timer(&tone->tl); + tone->tl.expires = jiffies + (pat->seq[index] * HZ) / 8000; + add_timer(&tone->tl); +} + + +/******************** + * set/release tone * + ********************/ + +/* + * tones are relaized by streaming or by special loop commands if supported + * by hardware. when hardware is used, the patterns will be controlled by + * timers. + */ +int +dsp_tone(struct dsp *dsp, int tone) +{ + struct pattern *pat; + int i; + struct dsp_tone *tonet = &dsp->tone; + + tonet->software = 0; + tonet->hardware = 0; + + /* we turn off the tone */ + if (!tone) { + if (dsp->features.hfc_loops) + if (timer_pending(&tonet->tl)) + del_timer(&tonet->tl); + if (dsp->features.hfc_loops) + dsp_tone_hw_message(dsp, NULL, 0); + tonet->tone = 0; + return 0; + } + + pat = NULL; + i = 0; + while (pattern[i].tone) { + if (pattern[i].tone == tone) { + pat = &pattern[i]; + break; + } + i++; + } + if (!pat) { + printk(KERN_WARNING "dsp: given tone 0x%x is invalid\n", tone); + return -EINVAL; + } + if (dsp_debug & DEBUG_DSP_TONE) + printk(KERN_DEBUG "%s: now starting tone %d (index=%d)\n", + __func__, tone, 0); + tonet->tone = tone; + tonet->pattern = pat; + tonet->index = 0; + tonet->count = 0; + + if (dsp->features.hfc_loops) { + tonet->hardware = 1; + /* set first tone */ + dsp_tone_hw_message(dsp, pat->data[0], *(pat->siz[0])); + /* set timer */ + if (timer_pending(&tonet->tl)) + del_timer(&tonet->tl); + init_timer(&tonet->tl); + tonet->tl.expires = jiffies + (pat->seq[0] * HZ) / 8000; + add_timer(&tonet->tl); + } else { + tonet->software = 1; + } + + return 0; +} + + + + + diff --git a/drivers/isdn/mISDN/fsm.c b/drivers/isdn/mISDN/fsm.c new file mode 100644 index 0000000..b5d6553 --- /dev/null +++ b/drivers/isdn/mISDN/fsm.c @@ -0,0 +1,183 @@ +/* + * finite state machine implementation + * + * Author Karsten Keil <kkeil@novell.com> + * + * Thanks to Jan den Ouden + * Fritz Elfert + * Copyright 2008 by Karsten Keil <kkeil@novell.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/string.h> +#include "fsm.h" + +#define FSM_TIMER_DEBUG 0 + +void +mISDN_FsmNew(struct Fsm *fsm, + struct FsmNode *fnlist, int fncount) +{ + int i; + + fsm->jumpmatrix = kzalloc(sizeof(FSMFNPTR) * fsm->state_count * + fsm->event_count, GFP_KERNEL); + + for (i = 0; i < fncount; i++) + if ((fnlist[i].state >= fsm->state_count) || + (fnlist[i].event >= fsm->event_count)) { + printk(KERN_ERR + "mISDN_FsmNew Error: %d st(%ld/%ld) ev(%ld/%ld)\n", + i, (long)fnlist[i].state, (long)fsm->state_count, + (long)fnlist[i].event, (long)fsm->event_count); + } else + fsm->jumpmatrix[fsm->state_count * fnlist[i].event + + fnlist[i].state] = (FSMFNPTR) fnlist[i].routine; +} +EXPORT_SYMBOL(mISDN_FsmNew); + +void +mISDN_FsmFree(struct Fsm *fsm) +{ + kfree((void *) fsm->jumpmatrix); +} +EXPORT_SYMBOL(mISDN_FsmFree); + +int +mISDN_FsmEvent(struct FsmInst *fi, int event, void *arg) +{ + FSMFNPTR r; + + if ((fi->state >= fi->fsm->state_count) || + (event >= fi->fsm->event_count)) { + printk(KERN_ERR + "mISDN_FsmEvent Error st(%ld/%ld) ev(%d/%ld)\n", + (long)fi->state, (long)fi->fsm->state_count, event, + (long)fi->fsm->event_count); + return 1; + } + r = fi->fsm->jumpmatrix[fi->fsm->state_count * event + fi->state]; + if (r) { + if (fi->debug) + fi->printdebug(fi, "State %s Event %s", + fi->fsm->strState[fi->state], + fi->fsm->strEvent[event]); + r(fi, event, arg); + return 0; + } else { + if (fi->debug) + fi->printdebug(fi, "State %s Event %s no action", + fi->fsm->strState[fi->state], + fi->fsm->strEvent[event]); + return 1; + } +} +EXPORT_SYMBOL(mISDN_FsmEvent); + +void +mISDN_FsmChangeState(struct FsmInst *fi, int newstate) +{ + fi->state = newstate; + if (fi->debug) + fi->printdebug(fi, "ChangeState %s", + fi->fsm->strState[newstate]); +} +EXPORT_SYMBOL(mISDN_FsmChangeState); + +static void +FsmExpireTimer(struct FsmTimer *ft) +{ +#if FSM_TIMER_DEBUG + if (ft->fi->debug) + ft->fi->printdebug(ft->fi, "FsmExpireTimer %lx", (long) ft); +#endif + mISDN_FsmEvent(ft->fi, ft->event, ft->arg); +} + +void +mISDN_FsmInitTimer(struct FsmInst *fi, struct FsmTimer *ft) +{ + ft->fi = fi; + ft->tl.function = (void *) FsmExpireTimer; + ft->tl.data = (long) ft; +#if FSM_TIMER_DEBUG + if (ft->fi->debug) + ft->fi->printdebug(ft->fi, "mISDN_FsmInitTimer %lx", (long) ft); +#endif + init_timer(&ft->tl); +} +EXPORT_SYMBOL(mISDN_FsmInitTimer); + +void +mISDN_FsmDelTimer(struct FsmTimer *ft, int where) +{ +#if FSM_TIMER_DEBUG + if (ft->fi->debug) + ft->fi->printdebug(ft->fi, "mISDN_FsmDelTimer %lx %d", + (long) ft, where); +#endif + del_timer(&ft->tl); +} +EXPORT_SYMBOL(mISDN_FsmDelTimer); + +int +mISDN_FsmAddTimer(struct FsmTimer *ft, + int millisec, int event, void *arg, int where) +{ + +#if FSM_TIMER_DEBUG + if (ft->fi->debug) + ft->fi->printdebug(ft->fi, "mISDN_FsmAddTimer %lx %d %d", + (long) ft, millisec, where); +#endif + + if (timer_pending(&ft->tl)) { + if (ft->fi->debug) { + printk(KERN_WARNING + "mISDN_FsmAddTimer: timer already active!\n"); + ft->fi->printdebug(ft->fi, + "mISDN_FsmAddTimer already active!"); + } + return -1; + } + init_timer(&ft->tl); + ft->event = event; + ft->arg = arg; + ft->tl.expires = jiffies + (millisec * HZ) / 1000; + add_timer(&ft->tl); + return 0; +} +EXPORT_SYMBOL(mISDN_FsmAddTimer); + +void +mISDN_FsmRestartTimer(struct FsmTimer *ft, + int millisec, int event, void *arg, int where) +{ + +#if FSM_TIMER_DEBUG + if (ft->fi->debug) + ft->fi->printdebug(ft->fi, "mISDN_FsmRestartTimer %lx %d %d", + (long) ft, millisec, where); +#endif + + if (timer_pending(&ft->tl)) + del_timer(&ft->tl); + init_timer(&ft->tl); + ft->event = event; + ft->arg = arg; + ft->tl.expires = jiffies + (millisec * HZ) / 1000; + add_timer(&ft->tl); +} +EXPORT_SYMBOL(mISDN_FsmRestartTimer); diff --git a/drivers/isdn/mISDN/fsm.h b/drivers/isdn/mISDN/fsm.h new file mode 100644 index 0000000..928f5be --- /dev/null +++ b/drivers/isdn/mISDN/fsm.h @@ -0,0 +1,67 @@ +/* + * + * Author Karsten Keil <kkeil@novell.com> + * + * Thanks to Jan den Ouden + * Fritz Elfert + * Copyright 2008 by Karsten Keil <kkeil@novell.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef _MISDN_FSM_H +#define _MISDN_FSM_H + +#include <linux/timer.h> + +/* Statemachine */ + +struct FsmInst; + +typedef void (*FSMFNPTR)(struct FsmInst *, int, void *); + +struct Fsm { + FSMFNPTR *jumpmatrix; + int state_count, event_count; + char **strEvent, **strState; +}; + +struct FsmInst { + struct Fsm *fsm; + int state; + int debug; + void *userdata; + int userint; + void (*printdebug) (struct FsmInst *, char *, ...); +}; + +struct FsmNode { + int state, event; + void (*routine) (struct FsmInst *, int, void *); +}; + +struct FsmTimer { + struct FsmInst *fi; + struct timer_list tl; + int event; + void *arg; +}; + +extern void mISDN_FsmNew(struct Fsm *, struct FsmNode *, int); +extern void mISDN_FsmFree(struct Fsm *); +extern int mISDN_FsmEvent(struct FsmInst *, int , void *); +extern void mISDN_FsmChangeState(struct FsmInst *, int); +extern void mISDN_FsmInitTimer(struct FsmInst *, struct FsmTimer *); +extern int mISDN_FsmAddTimer(struct FsmTimer *, int, int, void *, int); +extern void mISDN_FsmRestartTimer(struct FsmTimer *, int, int, void *, int); +extern void mISDN_FsmDelTimer(struct FsmTimer *, int); + +#endif diff --git a/drivers/isdn/mISDN/hwchannel.c b/drivers/isdn/mISDN/hwchannel.c new file mode 100644 index 0000000..2596fba --- /dev/null +++ b/drivers/isdn/mISDN/hwchannel.c @@ -0,0 +1,365 @@ +/* + * + * Author Karsten Keil <kkeil@novell.com> + * + * Copyright 2008 by Karsten Keil <kkeil@novell.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <linux/module.h> +#include <linux/mISDNhw.h> + +static void +dchannel_bh(struct work_struct *ws) +{ + struct dchannel *dch = container_of(ws, struct dchannel, workq); + struct sk_buff *skb; + int err; + + if (test_and_clear_bit(FLG_RECVQUEUE, &dch->Flags)) { + while ((skb = skb_dequeue(&dch->rqueue))) { + if (likely(dch->dev.D.peer)) { + err = dch->dev.D.recv(dch->dev.D.peer, skb); + if (err) + dev_kfree_skb(skb); + } else + dev_kfree_skb(skb); + } + } + if (test_and_clear_bit(FLG_PHCHANGE, &dch->Flags)) { + if (dch->phfunc) + dch->phfunc(dch); + } +} + +static void +bchannel_bh(struct work_struct *ws) +{ + struct bchannel *bch = container_of(ws, struct bchannel, workq); + struct sk_buff *skb; + int err; + + if (test_and_clear_bit(FLG_RECVQUEUE, &bch->Flags)) { + while ((skb = skb_dequeue(&bch->rqueue))) { + if (bch->rcount >= 64) + printk(KERN_WARNING "B-channel %p receive " + "queue if full, but empties...\n", bch); + bch->rcount--; + if (likely(bch->ch.peer)) { + err = bch->ch.recv(bch->ch.peer, skb); + if (err) + dev_kfree_skb(skb); + } else + dev_kfree_skb(skb); + } + } +} + +int +mISDN_initdchannel(struct dchannel *ch, int maxlen, void *phf) +{ + test_and_set_bit(FLG_HDLC, &ch->Flags); + ch->maxlen = maxlen; + ch->hw = NULL; + ch->rx_skb = NULL; + ch->tx_skb = NULL; + ch->tx_idx = 0; + ch->phfunc = phf; + skb_queue_head_init(&ch->squeue); + skb_queue_head_init(&ch->rqueue); + INIT_LIST_HEAD(&ch->dev.bchannels); + INIT_WORK(&ch->workq, dchannel_bh); + return 0; +} +EXPORT_SYMBOL(mISDN_initdchannel); + +int +mISDN_initbchannel(struct bchannel *ch, int maxlen) +{ + ch->Flags = 0; + ch->maxlen = maxlen; + ch->hw = NULL; + ch->rx_skb = NULL; + ch->tx_skb = NULL; + ch->tx_idx = 0; + skb_queue_head_init(&ch->rqueue); + ch->rcount = 0; + ch->next_skb = NULL; + INIT_WORK(&ch->workq, bchannel_bh); + return 0; +} +EXPORT_SYMBOL(mISDN_initbchannel); + +int +mISDN_freedchannel(struct dchannel *ch) +{ + if (ch->tx_skb) { + dev_kfree_skb(ch->tx_skb); + ch->tx_skb = NULL; + } + if (ch->rx_skb) { + dev_kfree_skb(ch->rx_skb); + ch->rx_skb = NULL; + } + skb_queue_purge(&ch->squeue); + skb_queue_purge(&ch->rqueue); + flush_scheduled_work(); + return 0; +} +EXPORT_SYMBOL(mISDN_freedchannel); + +int +mISDN_freebchannel(struct bchannel *ch) +{ + if (ch->tx_skb) { + dev_kfree_skb(ch->tx_skb); + ch->tx_skb = NULL; + } + if (ch->rx_skb) { + dev_kfree_skb(ch->rx_skb); + ch->rx_skb = NULL; + } + if (ch->next_skb) { + dev_kfree_skb(ch->next_skb); + ch->next_skb = NULL; + } + skb_queue_purge(&ch->rqueue); + ch->rcount = 0; + flush_scheduled_work(); + return 0; +} +EXPORT_SYMBOL(mISDN_freebchannel); + +static inline u_int +get_sapi_tei(u_char *p) +{ + u_int sapi, tei; + + sapi = *p >> 2; + tei = p[1] >> 1; + return sapi | (tei << 8); +} + +void +recv_Dchannel(struct dchannel *dch) +{ + struct mISDNhead *hh; + + if (dch->rx_skb->len < 2) { /* at least 2 for sapi / tei */ + dev_kfree_skb(dch->rx_skb); + dch->rx_skb = NULL; + return; + } + hh = mISDN_HEAD_P(dch->rx_skb); + hh->prim = PH_DATA_IND; + hh->id = get_sapi_tei(dch->rx_skb->data); + skb_queue_tail(&dch->rqueue, dch->rx_skb); + dch->rx_skb = NULL; + schedule_event(dch, FLG_RECVQUEUE); +} +EXPORT_SYMBOL(recv_Dchannel); + +void +recv_Bchannel(struct bchannel *bch) +{ + struct mISDNhead *hh; + + hh = mISDN_HEAD_P(bch->rx_skb); + hh->prim = PH_DATA_IND; + hh->id = MISDN_ID_ANY; + if (bch->rcount >= 64) { + dev_kfree_skb(bch->rx_skb); + bch->rx_skb = NULL; + return; + } + bch->rcount++; + skb_queue_tail(&bch->rqueue, bch->rx_skb); + bch->rx_skb = NULL; + schedule_event(bch, FLG_RECVQUEUE); +} +EXPORT_SYMBOL(recv_Bchannel); + +void +recv_Dchannel_skb(struct dchannel *dch, struct sk_buff *skb) +{ + skb_queue_tail(&dch->rqueue, skb); + schedule_event(dch, FLG_RECVQUEUE); +} +EXPORT_SYMBOL(recv_Dchannel_skb); + +void +recv_Bchannel_skb(struct bchannel *bch, struct sk_buff *skb) +{ + if (bch->rcount >= 64) { + dev_kfree_skb(skb); + return; + } + bch->rcount++; + skb_queue_tail(&bch->rqueue, skb); + schedule_event(bch, FLG_RECVQUEUE); +} +EXPORT_SYMBOL(recv_Bchannel_skb); + +static void +confirm_Dsend(struct dchannel *dch) +{ + struct sk_buff *skb; + + skb = _alloc_mISDN_skb(PH_DATA_CNF, mISDN_HEAD_ID(dch->tx_skb), + 0, NULL, GFP_ATOMIC); + if (!skb) { + printk(KERN_ERR "%s: no skb id %x\n", __func__, + mISDN_HEAD_ID(dch->tx_skb)); + return; + } + skb_queue_tail(&dch->rqueue, skb); + schedule_event(dch, FLG_RECVQUEUE); +} + +int +get_next_dframe(struct dchannel *dch) +{ + dch->tx_idx = 0; + dch->tx_skb = skb_dequeue(&dch->squeue); + if (dch->tx_skb) { + confirm_Dsend(dch); + return 1; + } + dch->tx_skb = NULL; + test_and_clear_bit(FLG_TX_BUSY, &dch->Flags); + return 0; +} +EXPORT_SYMBOL(get_next_dframe); + +void +confirm_Bsend(struct bchannel *bch) +{ + struct sk_buff *skb; + + if (bch->rcount >= 64) + return; + skb = _alloc_mISDN_skb(PH_DATA_CNF, mISDN_HEAD_ID(bch->tx_skb), + 0, NULL, GFP_ATOMIC); + if (!skb) { + printk(KERN_ERR "%s: no skb id %x\n", __func__, + mISDN_HEAD_ID(bch->tx_skb)); + return; + } + bch->rcount++; + skb_queue_tail(&bch->rqueue, skb); + schedule_event(bch, FLG_RECVQUEUE); +} +EXPORT_SYMBOL(confirm_Bsend); + +int +get_next_bframe(struct bchannel *bch) +{ + bch->tx_idx = 0; + if (test_bit(FLG_TX_NEXT, &bch->Flags)) { + bch->tx_skb = bch->next_skb; + if (bch->tx_skb) { + bch->next_skb = NULL; + test_and_clear_bit(FLG_TX_NEXT, &bch->Flags); + if (!test_bit(FLG_TRANSPARENT, &bch->Flags)) + confirm_Bsend(bch); /* not for transparent */ + return 1; + } else { + test_and_clear_bit(FLG_TX_NEXT, &bch->Flags); + printk(KERN_WARNING "B TX_NEXT without skb\n"); + } + } + bch->tx_skb = NULL; + test_and_clear_bit(FLG_TX_BUSY, &bch->Flags); + return 0; +} +EXPORT_SYMBOL(get_next_bframe); + +void +queue_ch_frame(struct mISDNchannel *ch, u_int pr, int id, struct sk_buff *skb) +{ + struct mISDNhead *hh; + + if (!skb) { + _queue_data(ch, pr, id, 0, NULL, GFP_ATOMIC); + } else { + if (ch->peer) { + hh = mISDN_HEAD_P(skb); + hh->prim = pr; + hh->id = id; + if (!ch->recv(ch->peer, skb)) + return; + } + dev_kfree_skb(skb); + } +} +EXPORT_SYMBOL(queue_ch_frame); + +int +dchannel_senddata(struct dchannel *ch, struct sk_buff *skb) +{ + /* check oversize */ + if (skb->len <= 0) { + printk(KERN_WARNING "%s: skb too small\n", __func__); + return -EINVAL; + } + if (skb->len > ch->maxlen) { + printk(KERN_WARNING "%s: skb too large(%d/%d)\n", + __func__, skb->len, ch->maxlen); + return -EINVAL; + } + /* HW lock must be obtained */ + if (test_and_set_bit(FLG_TX_BUSY, &ch->Flags)) { + skb_queue_tail(&ch->squeue, skb); + return 0; + } else { + /* write to fifo */ + ch->tx_skb = skb; + ch->tx_idx = 0; + return 1; + } +} +EXPORT_SYMBOL(dchannel_senddata); + +int +bchannel_senddata(struct bchannel *ch, struct sk_buff *skb) +{ + + /* check oversize */ + if (skb->len <= 0) { + printk(KERN_WARNING "%s: skb too small\n", __func__); + return -EINVAL; + } + if (skb->len > ch->maxlen) { + printk(KERN_WARNING "%s: skb too large(%d/%d)\n", + __func__, skb->len, ch->maxlen); + return -EINVAL; + } + /* HW lock must be obtained */ + /* check for pending next_skb */ + if (ch->next_skb) { + printk(KERN_WARNING + "%s: next_skb exist ERROR (skb->len=%d next_skb->len=%d)\n", + __func__, skb->len, ch->next_skb->len); + return -EBUSY; + } + if (test_and_set_bit(FLG_TX_BUSY, &ch->Flags)) { + test_and_set_bit(FLG_TX_NEXT, &ch->Flags); + ch->next_skb = skb; + return 0; + } else { + /* write to fifo */ + ch->tx_skb = skb; + ch->tx_idx = 0; + return 1; + } +} +EXPORT_SYMBOL(bchannel_senddata); diff --git a/drivers/isdn/mISDN/l1oip.h b/drivers/isdn/mISDN/l1oip.h new file mode 100644 index 0000000..a23d575 --- /dev/null +++ b/drivers/isdn/mISDN/l1oip.h @@ -0,0 +1,91 @@ +/* + * see notice in l1oip.c + */ + +/* debugging */ +#define DEBUG_L1OIP_INIT 0x00010000 +#define DEBUG_L1OIP_SOCKET 0x00020000 +#define DEBUG_L1OIP_MGR 0x00040000 +#define DEBUG_L1OIP_MSG 0x00080000 + +/* enable to disorder received bchannels by sequence 2143658798... */ +/* +#define REORDER_DEBUG +*/ + +/* frames */ +#define L1OIP_MAX_LEN 2048 /* max packet size form l2 */ +#define L1OIP_MAX_PERFRAME 1400 /* max data size in one frame */ + + +/* timers */ +#define L1OIP_KEEPALIVE 15 +#define L1OIP_TIMEOUT 65 + + +/* socket */ +#define L1OIP_DEFAULTPORT 931 + + +/* channel structure */ +struct l1oip_chan { + struct dchannel *dch; + struct bchannel *bch; + u32 tx_counter; /* counts xmit bytes/packets */ + u32 rx_counter; /* counts recv bytes/packets */ + u32 codecstate; /* used by codec to save data */ +#ifdef REORDER_DEBUG + int disorder_flag; + struct sk_buff *disorder_skb; + u32 disorder_cnt; +#endif +}; + + +/* card structure */ +struct l1oip { + struct list_head list; + + /* card */ + int registered; /* if registered with mISDN */ + char name[MISDN_MAX_IDLEN]; + int idx; /* card index */ + int pri; /* 1=pri, 0=bri */ + int d_idx; /* current dchannel number */ + int b_num; /* number of bchannels */ + u32 id; /* id of connection */ + int ondemand; /* if transmis. is on demand */ + int bundle; /* bundle channels in one frm */ + int codec; /* codec to use for transmis. */ + int limit; /* limit number of bchannels */ + + /* timer */ + struct timer_list keep_tl; + struct timer_list timeout_tl; + int timeout_on; + struct work_struct workq; + + /* socket */ + struct socket *socket; /* if set, socket is created */ + struct completion socket_complete;/* completion of sock thread */ + struct task_struct *socket_thread; + spinlock_t socket_lock; /* access sock outside thread */ + u32 remoteip; /* if all set, ip is assigned */ + u16 localport; /* must always be set */ + u16 remoteport; /* must always be set */ + struct sockaddr_in sin_local; /* local socket name */ + struct sockaddr_in sin_remote; /* remote socket name */ + struct msghdr sendmsg; /* ip message to send */ + struct iovec sendiov; /* iov for message */ + + /* frame */ + struct l1oip_chan chan[128]; /* channel instances */ +}; + +extern int l1oip_law_to_4bit(u8 *data, int len, u8 *result, u32 *state); +extern int l1oip_4bit_to_law(u8 *data, int len, u8 *result); +extern int l1oip_alaw_to_ulaw(u8 *data, int len, u8 *result); +extern int l1oip_ulaw_to_alaw(u8 *data, int len, u8 *result); +extern void l1oip_4bit_free(void); +extern int l1oip_4bit_alloc(int ulaw); + diff --git a/drivers/isdn/mISDN/l1oip_codec.c b/drivers/isdn/mISDN/l1oip_codec.c new file mode 100644 index 0000000..a2dc457 --- /dev/null +++ b/drivers/isdn/mISDN/l1oip_codec.c @@ -0,0 +1,374 @@ +/* + + * l1oip_codec.c generic codec using lookup table + * -> conversion from a-Law to u-Law + * -> conversion from u-Law to a-Law + * -> compression by reducing the number of sample resolution to 4 + * + * NOTE: It is not compatible with any standard codec like ADPCM. + * + * Author Andreas Eversberg (jolly@eversberg.eu) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + + */ + +/* + +How the codec works: +-------------------- + +The volume is increased to increase the dynamic range of the audio signal. +Each sample is converted to a-LAW with only 16 steps of level resolution. +A pair of two samples are stored in one byte. + +The first byte is stored in the upper bits, the second byte is stored in the +lower bits. + +To speed up compression and decompression, two lookup tables are formed: + +- 16 bits index for two samples (law encoded) with 8 bit compressed result. +- 8 bits index for one compressed data with 16 bits decompressed result. + +NOTE: The bytes are handled as they are law-encoded. + +*/ + +#include <linux/vmalloc.h> +#include <linux/mISDNif.h> +#include "core.h" + +/* definitions of codec. don't use calculations, code may run slower. */ + +static u8 *table_com; +static u16 *table_dec; + + +/* alaw -> ulaw */ +static u8 alaw_to_ulaw[256] = +{ + 0xab, 0x2b, 0xe3, 0x63, 0x8b, 0x0b, 0xc9, 0x49, + 0xba, 0x3a, 0xf6, 0x76, 0x9b, 0x1b, 0xd7, 0x57, + 0xa3, 0x23, 0xdd, 0x5d, 0x83, 0x03, 0xc1, 0x41, + 0xb2, 0x32, 0xeb, 0x6b, 0x93, 0x13, 0xcf, 0x4f, + 0xaf, 0x2f, 0xe7, 0x67, 0x8f, 0x0f, 0xcd, 0x4d, + 0xbe, 0x3e, 0xfe, 0x7e, 0x9f, 0x1f, 0xdb, 0x5b, + 0xa7, 0x27, 0xdf, 0x5f, 0x87, 0x07, 0xc5, 0x45, + 0xb6, 0x36, 0xef, 0x6f, 0x97, 0x17, 0xd3, 0x53, + 0xa9, 0x29, 0xe1, 0x61, 0x89, 0x09, 0xc7, 0x47, + 0xb8, 0x38, 0xf2, 0x72, 0x99, 0x19, 0xd5, 0x55, + 0xa1, 0x21, 0xdc, 0x5c, 0x81, 0x01, 0xbf, 0x3f, + 0xb0, 0x30, 0xe9, 0x69, 0x91, 0x11, 0xce, 0x4e, + 0xad, 0x2d, 0xe5, 0x65, 0x8d, 0x0d, 0xcb, 0x4b, + 0xbc, 0x3c, 0xfa, 0x7a, 0x9d, 0x1d, 0xd9, 0x59, + 0xa5, 0x25, 0xde, 0x5e, 0x85, 0x05, 0xc3, 0x43, + 0xb4, 0x34, 0xed, 0x6d, 0x95, 0x15, 0xd1, 0x51, + 0xac, 0x2c, 0xe4, 0x64, 0x8c, 0x0c, 0xca, 0x4a, + 0xbb, 0x3b, 0xf8, 0x78, 0x9c, 0x1c, 0xd8, 0x58, + 0xa4, 0x24, 0xde, 0x5e, 0x84, 0x04, 0xc2, 0x42, + 0xb3, 0x33, 0xec, 0x6c, 0x94, 0x14, 0xd0, 0x50, + 0xb0, 0x30, 0xe8, 0x68, 0x90, 0x10, 0xce, 0x4e, + 0xbf, 0x3f, 0xfe, 0x7e, 0xa0, 0x20, 0xdc, 0x5c, + 0xa8, 0x28, 0xe0, 0x60, 0x88, 0x08, 0xc6, 0x46, + 0xb7, 0x37, 0xf0, 0x70, 0x98, 0x18, 0xd4, 0x54, + 0xaa, 0x2a, 0xe2, 0x62, 0x8a, 0x0a, 0xc8, 0x48, + 0xb9, 0x39, 0xf4, 0x74, 0x9a, 0x1a, 0xd6, 0x56, + 0xa2, 0x22, 0xdd, 0x5d, 0x82, 0x02, 0xc0, 0x40, + 0xb1, 0x31, 0xea, 0x6a, 0x92, 0x12, 0xcf, 0x4f, + 0xae, 0x2e, 0xe6, 0x66, 0x8e, 0x0e, 0xcc, 0x4c, + 0xbd, 0x3d, 0xfc, 0x7c, 0x9e, 0x1e, 0xda, 0x5a, + 0xa6, 0x26, 0xdf, 0x5f, 0x86, 0x06, 0xc4, 0x44, + 0xb5, 0x35, 0xee, 0x6e, 0x96, 0x16, 0xd2, 0x52 +}; + +/* ulaw -> alaw */ +static u8 ulaw_to_alaw[256] = +{ + 0xab, 0x55, 0xd5, 0x15, 0x95, 0x75, 0xf5, 0x35, + 0xb5, 0x45, 0xc5, 0x05, 0x85, 0x65, 0xe5, 0x25, + 0xa5, 0x5d, 0xdd, 0x1d, 0x9d, 0x7d, 0xfd, 0x3d, + 0xbd, 0x4d, 0xcd, 0x0d, 0x8d, 0x6d, 0xed, 0x2d, + 0xad, 0x51, 0xd1, 0x11, 0x91, 0x71, 0xf1, 0x31, + 0xb1, 0x41, 0xc1, 0x01, 0x81, 0x61, 0xe1, 0x21, + 0x59, 0xd9, 0x19, 0x99, 0x79, 0xf9, 0x39, 0xb9, + 0x49, 0xc9, 0x09, 0x89, 0x69, 0xe9, 0x29, 0xa9, + 0xd7, 0x17, 0x97, 0x77, 0xf7, 0x37, 0xb7, 0x47, + 0xc7, 0x07, 0x87, 0x67, 0xe7, 0x27, 0xa7, 0xdf, + 0x9f, 0x7f, 0xff, 0x3f, 0xbf, 0x4f, 0xcf, 0x0f, + 0x8f, 0x6f, 0xef, 0x2f, 0x53, 0x13, 0x73, 0x33, + 0xb3, 0x43, 0xc3, 0x03, 0x83, 0x63, 0xe3, 0x23, + 0xa3, 0x5b, 0xdb, 0x1b, 0x9b, 0x7b, 0xfb, 0x3b, + 0xbb, 0xbb, 0x4b, 0x4b, 0xcb, 0xcb, 0x0b, 0x0b, + 0x8b, 0x8b, 0x6b, 0x6b, 0xeb, 0xeb, 0x2b, 0x2b, + 0xab, 0x54, 0xd4, 0x14, 0x94, 0x74, 0xf4, 0x34, + 0xb4, 0x44, 0xc4, 0x04, 0x84, 0x64, 0xe4, 0x24, + 0xa4, 0x5c, 0xdc, 0x1c, 0x9c, 0x7c, 0xfc, 0x3c, + 0xbc, 0x4c, 0xcc, 0x0c, 0x8c, 0x6c, 0xec, 0x2c, + 0xac, 0x50, 0xd0, 0x10, 0x90, 0x70, 0xf0, 0x30, + 0xb0, 0x40, 0xc0, 0x00, 0x80, 0x60, 0xe0, 0x20, + 0x58, 0xd8, 0x18, 0x98, 0x78, 0xf8, 0x38, 0xb8, + 0x48, 0xc8, 0x08, 0x88, 0x68, 0xe8, 0x28, 0xa8, + 0xd6, 0x16, 0x96, 0x76, 0xf6, 0x36, 0xb6, 0x46, + 0xc6, 0x06, 0x86, 0x66, 0xe6, 0x26, 0xa6, 0xde, + 0x9e, 0x7e, 0xfe, 0x3e, 0xbe, 0x4e, 0xce, 0x0e, + 0x8e, 0x6e, 0xee, 0x2e, 0x52, 0x12, 0x72, 0x32, + 0xb2, 0x42, 0xc2, 0x02, 0x82, 0x62, 0xe2, 0x22, + 0xa2, 0x5a, 0xda, 0x1a, 0x9a, 0x7a, 0xfa, 0x3a, + 0xba, 0xba, 0x4a, 0x4a, 0xca, 0xca, 0x0a, 0x0a, + 0x8a, 0x8a, 0x6a, 0x6a, 0xea, 0xea, 0x2a, 0x2a +}; + +/* alaw -> 4bit compression */ +static u8 alaw_to_4bit[256] = { + 0x0e, 0x01, 0x0a, 0x05, 0x0f, 0x00, 0x0c, 0x03, + 0x0d, 0x02, 0x08, 0x07, 0x0f, 0x00, 0x0b, 0x04, + 0x0e, 0x01, 0x0a, 0x05, 0x0f, 0x00, 0x0c, 0x03, + 0x0d, 0x02, 0x09, 0x06, 0x0f, 0x00, 0x0b, 0x04, + 0x0e, 0x01, 0x0a, 0x05, 0x0f, 0x00, 0x0c, 0x03, + 0x0d, 0x02, 0x08, 0x07, 0x0f, 0x00, 0x0b, 0x04, + 0x0e, 0x01, 0x0a, 0x05, 0x0f, 0x00, 0x0c, 0x03, + 0x0d, 0x02, 0x09, 0x06, 0x0f, 0x00, 0x0b, 0x04, + 0x0e, 0x01, 0x0a, 0x05, 0x0f, 0x00, 0x0c, 0x03, + 0x0d, 0x02, 0x08, 0x07, 0x0f, 0x00, 0x0b, 0x04, + 0x0e, 0x01, 0x0a, 0x05, 0x0f, 0x00, 0x0d, 0x02, + 0x0e, 0x02, 0x09, 0x06, 0x0f, 0x00, 0x0b, 0x04, + 0x0e, 0x01, 0x0a, 0x05, 0x0f, 0x00, 0x0c, 0x03, + 0x0d, 0x02, 0x08, 0x07, 0x0f, 0x00, 0x0b, 0x04, + 0x0e, 0x01, 0x0a, 0x05, 0x0f, 0x00, 0x0c, 0x03, + 0x0d, 0x02, 0x09, 0x06, 0x0f, 0x00, 0x0b, 0x04, + 0x0e, 0x01, 0x0a, 0x05, 0x0f, 0x00, 0x0c, 0x03, + 0x0d, 0x02, 0x08, 0x07, 0x0f, 0x00, 0x0b, 0x04, + 0x0e, 0x01, 0x0a, 0x05, 0x0f, 0x00, 0x0c, 0x03, + 0x0d, 0x02, 0x09, 0x06, 0x0f, 0x00, 0x0b, 0x04, + 0x0e, 0x02, 0x09, 0x06, 0x0f, 0x00, 0x0b, 0x04, + 0x0d, 0x02, 0x08, 0x07, 0x0f, 0x01, 0x0a, 0x05, + 0x0e, 0x01, 0x0a, 0x05, 0x0f, 0x00, 0x0c, 0x03, + 0x0d, 0x02, 0x09, 0x07, 0x0f, 0x00, 0x0b, 0x04, + 0x0e, 0x01, 0x0a, 0x05, 0x0f, 0x00, 0x0c, 0x03, + 0x0d, 0x02, 0x08, 0x07, 0x0f, 0x00, 0x0b, 0x04, + 0x0e, 0x01, 0x0a, 0x05, 0x0f, 0x00, 0x0c, 0x03, + 0x0d, 0x02, 0x09, 0x06, 0x0f, 0x00, 0x0b, 0x04, + 0x0e, 0x01, 0x0a, 0x05, 0x0f, 0x00, 0x0c, 0x03, + 0x0d, 0x02, 0x08, 0x07, 0x0f, 0x00, 0x0b, 0x04, + 0x0e, 0x01, 0x0a, 0x05, 0x0f, 0x00, 0x0c, 0x03, + 0x0d, 0x02, 0x09, 0x06, 0x0f, 0x00, 0x0b, 0x04, +}; + +/* 4bit -> alaw decompression */ +static u8 _4bit_to_alaw[16] = { + 0x5d, 0x51, 0xd9, 0xd7, 0x5f, 0x53, 0xa3, 0x4b, + 0x2a, 0x3a, 0x22, 0x2e, 0x26, 0x56, 0x20, 0x2c, +}; + +/* ulaw -> 4bit compression */ +static u8 ulaw_to_4bit[256] = { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, + 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, + 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, + 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, + 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, + 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x04, 0x04, + 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, + 0x04, 0x04, 0x04, 0x04, 0x05, 0x05, 0x05, 0x05, + 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, + 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, + 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, + 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x08, + 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, + 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, + 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, + 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, + 0x0f, 0x0e, 0x0e, 0x0e, 0x0e, 0x0e, 0x0e, 0x0e, + 0x0e, 0x0e, 0x0e, 0x0e, 0x0e, 0x0e, 0x0e, 0x0e, + 0x0e, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, + 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, + 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, + 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0b, 0x0b, + 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, + 0x0b, 0x0b, 0x0b, 0x0b, 0x0a, 0x0a, 0x0a, 0x0a, + 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, + 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, + 0x09, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, + 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, +}; + +/* 4bit -> ulaw decompression */ +static u8 _4bit_to_ulaw[16] = { + 0x11, 0x21, 0x31, 0x40, 0x4e, 0x5c, 0x68, 0x71, + 0xfe, 0xef, 0xe7, 0xdb, 0xcd, 0xbf, 0xaf, 0x9f, +}; + + +/* + * Compresses data to the result buffer + * The result size must be at least half of the input buffer. + * The number of samples also must be even! + */ +int +l1oip_law_to_4bit(u8 *data, int len, u8 *result, u32 *state) +{ + int ii, i = 0, o = 0; + + if (!len) + return 0; + + /* send saved byte and first input byte */ + if (*state) { + *result++ = table_com[(((*state)<<8)&0xff00) | (*data++)]; + len--; + o++; + } + + ii = len >> 1; + + while (i < ii) { + *result++ = table_com[(data[0]<<8) | (data[1])]; + data += 2; + i++; + o++; + } + + /* if len has an odd number, we save byte for next call */ + if (len & 1) + *state = 0x100 + *data; + else + *state = 0; + + return o; +} + +/* Decompress data to the result buffer + * The result size must be the number of sample in packet. (2 * input data) + * The number of samples in the result are even! + */ +int +l1oip_4bit_to_law(u8 *data, int len, u8 *result) +{ + int i = 0; + u16 r; + + while (i < len) { + r = table_dec[*data++]; + *result++ = r>>8; + *result++ = r; + i++; + } + + return len << 1; +} + + +/* + * law conversion + */ +int +l1oip_alaw_to_ulaw(u8 *data, int len, u8 *result) +{ + int i = 0; + + while (i < len) { + *result++ = alaw_to_ulaw[*data++]; + i++; + } + + return len; +} + +int +l1oip_ulaw_to_alaw(u8 *data, int len, u8 *result) +{ + int i = 0; + + while (i < len) { + *result++ = ulaw_to_alaw[*data++]; + i++; + } + + return len; +} + + +/* + * generate/free compression and decompression table + */ +void +l1oip_4bit_free(void) +{ + if (table_dec) + vfree(table_dec); + if (table_com) + vfree(table_com); + table_com = NULL; + table_dec = NULL; +} + +int +l1oip_4bit_alloc(int ulaw) +{ + int i1, i2, c, sample; + + /* in case, it is called again */ + if (table_dec) + return 0; + + /* alloc conversion tables */ + table_com = vmalloc(65536); + table_dec = vmalloc(512); + if (!table_com | !table_dec) { + l1oip_4bit_free(); + return -ENOMEM; + } + memset(table_com, 0, 65536); + memset(table_dec, 0, 512); + /* generate compression table */ + i1 = 0; + while (i1 < 256) { + if (ulaw) + c = ulaw_to_4bit[i1]; + else + c = alaw_to_4bit[i1]; + i2 = 0; + while (i2 < 256) { + table_com[(i1<<8) | i2] |= (c<<4); + table_com[(i2<<8) | i1] |= c; + i2++; + } + i1++; + } + + /* generate decompression table */ + i1 = 0; + while (i1 < 16) { + if (ulaw) + sample = _4bit_to_ulaw[i1]; + else + sample = _4bit_to_alaw[i1]; + i2 = 0; + while (i2 < 16) { + table_dec[(i1<<4) | i2] |= (sample<<8); + table_dec[(i2<<4) | i1] |= sample; + i2++; + } + i1++; + } + + return 0; +} + + diff --git a/drivers/isdn/mISDN/l1oip_core.c b/drivers/isdn/mISDN/l1oip_core.c new file mode 100644 index 0000000..155b997 --- /dev/null +++ b/drivers/isdn/mISDN/l1oip_core.c @@ -0,0 +1,1518 @@ +/* + + * l1oip.c low level driver for tunneling layer 1 over IP + * + * NOTE: It is not compatible with TDMoIP nor "ISDN over IP". + * + * Author Andreas Eversberg (jolly@eversberg.eu) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +/* module parameters: + * type: + Value 1 = BRI + Value 2 = PRI + Value 3 = BRI (multi channel frame, not supported yet) + Value 4 = PRI (multi channel frame, not supported yet) + A multi channel frame reduces overhead to a single frame for all + b-channels, but increases delay. + (NOTE: Multi channel frames are not implemented yet.) + + * codec: + Value 0 = transparent (default) + Value 1 = transfer ALAW + Value 2 = transfer ULAW + Value 3 = transfer generic 4 bit compression. + + * ulaw: + 0 = we use a-Law (default) + 1 = we use u-Law + + * limit: + limitation of B-channels to control bandwidth (1...126) + BRI: 1 or 2 + PRI: 1-30, 31-126 (126, because dchannel ist not counted here) + Also limited ressources are used for stack, resulting in less channels. + It is possible to have more channels than 30 in PRI mode, this must + be supported by the application. + + * ip: + byte representation of remote ip address (127.0.0.1 -> 127,0,0,1) + If not given or four 0, no remote address is set. + For multiple interfaces, concat ip addresses. (127,0,0,1,127,0,0,1) + + * port: + port number (local interface) + If not given or 0, port 931 is used for fist instance, 932 for next... + For multiple interfaces, different ports must be given. + + * remoteport: + port number (remote interface) + If not given or 0, remote port equals local port + For multiple interfaces on equal sites, different ports must be given. + + * ondemand: + 0 = fixed (always transmit packets, even when remote side timed out) + 1 = on demand (only transmit packets, when remote side is detected) + the default is 0 + NOTE: ID must also be set for on demand. + + * id: + optional value to identify frames. This value must be equal on both + peers and should be random. If omitted or 0, no ID is transmitted. + + * debug: + NOTE: only one debug value must be given for all cards + enable debugging (see l1oip.h for debug options) + + +Special mISDN controls: + + op = MISDN_CTRL_SETPEER* + p1 = bytes 0-3 : remote IP address in network order (left element first) + p2 = bytes 1-2 : remote port in network order (high byte first) + optional: + p2 = bytes 3-4 : local port in network order (high byte first) + + op = MISDN_CTRL_UNSETPEER* + + * Use l1oipctrl for comfortable setting or removing ip address. + (Layer 1 Over IP CTRL) + + +L1oIP-Protocol +-------------- + +Frame Header: + + 7 6 5 4 3 2 1 0 ++---------------+ +|Ver|T|I|Coding | ++---------------+ +| ID byte 3 * | ++---------------+ +| ID byte 2 * | ++---------------+ +| ID byte 1 * | ++---------------+ +| ID byte 0 * | ++---------------+ +|M| Channel | ++---------------+ +| Length * | ++---------------+ +| Time Base MSB | ++---------------+ +| Time Base LSB | ++---------------+ +| Data.... | + +... + +| | ++---------------+ +|M| Channel | ++---------------+ +| Length * | ++---------------+ +| Time Base MSB | ++---------------+ +| Time Base LSB | ++---------------+ +| Data.... | + +... + + +* Only included in some cases. + +- Ver = Version +If version is missmatch, the frame must be ignored. + +- T = Type of interface +Must be 0 for S0 or 1 for E1. + +- I = Id present +If bit is set, four ID bytes are included in frame. + +- ID = Connection ID +Additional ID to prevent Denial of Service attacs. Also it prevents hijacking +connections with dynamic IP. The ID should be random and must not be 0. + +- Coding = Type of codec +Must be 0 for no transcoding. Also for D-channel and other HDLC frames. + 1 and 2 are reserved for explicitly use of a-LAW or u-LAW codec. + 3 is used for generic table compressor. + +- M = More channels to come. If this flag is 1, the following byte contains +the length of the channel data. After the data block, the next channel will +be defined. The flag for the last channel block (or if only one channel is +transmitted), must be 0 and no length is given. + +- Channel = Channel number +0 reserved +1-3 channel data for S0 (3 is D-channel) +1-31 channel data for E1 (16 is D-channel) +32-127 channel data for extended E1 (16 is D-channel) + +- The length is used if the M-flag is 1. It is used to find the next channel +inside frame. +NOTE: A value of 0 equals 256 bytes of data. + -> For larger data blocks, a single frame must be used. + -> For larger streams, a single frame or multiple blocks with same channel ID + must be used. + +- Time Base = Timestamp of first sample in frame +The "Time Base" is used to rearange packets and to detect packet loss. +The 16 bits are sent in network order (MSB first) and count 1/8000 th of a +second. This causes a wrap arround each 8,192 seconds. There is no requirement +for the initial "Time Base", but 0 should be used for the first packet. +In case of HDLC data, this timestamp counts the packet or byte number. + + +Two Timers: + +After initialisation, a timer of 15 seconds is started. Whenever a packet is +transmitted, the timer is reset to 15 seconds again. If the timer expires, an +empty packet is transmitted. This keep the connection alive. + +When a valid packet is received, a timer 65 seconds is started. The interface +become ACTIVE. If the timer expires, the interface becomes INACTIVE. + + +Dynamic IP handling: + +To allow dynamic IP, the ID must be non 0. In this case, any packet with the +correct port number and ID will be accepted. If the remote side changes its IP +the new IP is used for all transmitted packets until it changes again. + + +On Demand: + +If the ondemand parameter is given, the remote IP is set to 0 on timeout. +This will stop keepalive traffic to remote. If the remote is online again, +traffic will continue to the remote address. This is usefull for road warriors. +This feature only works with ID set, otherwhise it is highly unsecure. + + +Socket and Thread +----------------- + +The complete socket opening and closing is done by a thread. +When the thread opened a socket, the hc->socket descriptor is set. Whenever a +packet shall be sent to the socket, the hc->socket must be checked wheter not +NULL. To prevent change in socket descriptor, the hc->socket_lock must be used. +To change the socket, a recall of l1oip_socket_open() will safely kill the +socket process and create a new one. + +*/ + +#define L1OIP_VERSION 0 /* 0...3 */ + +#include <linux/module.h> +#include <linux/delay.h> +#include <linux/mISDNif.h> +#include <linux/mISDNhw.h> +#include <linux/mISDNdsp.h> +#include <linux/init.h> +#include <linux/in.h> +#include <linux/inet.h> +#include <linux/workqueue.h> +#include <linux/kthread.h> +#include <net/sock.h> +#include "core.h" +#include "l1oip.h" + +static const char *l1oip_revision = "2.00"; + +static int l1oip_cnt; +static spinlock_t l1oip_lock; +static struct list_head l1oip_ilist; + +#define MAX_CARDS 16 +static u_int type[MAX_CARDS]; +static u_int codec[MAX_CARDS]; +static u_int ip[MAX_CARDS*4]; +static u_int port[MAX_CARDS]; +static u_int remoteport[MAX_CARDS]; +static u_int ondemand[MAX_CARDS]; +static u_int limit[MAX_CARDS]; +static u_int id[MAX_CARDS]; +static int debug; +static int ulaw; + +MODULE_AUTHOR("Andreas Eversberg"); +MODULE_LICENSE("GPL"); +module_param_array(type, uint, NULL, S_IRUGO | S_IWUSR); +module_param_array(codec, uint, NULL, S_IRUGO | S_IWUSR); +module_param_array(ip, uint, NULL, S_IRUGO | S_IWUSR); +module_param_array(port, uint, NULL, S_IRUGO | S_IWUSR); +module_param_array(remoteport, uint, NULL, S_IRUGO | S_IWUSR); +module_param_array(ondemand, uint, NULL, S_IRUGO | S_IWUSR); +module_param_array(limit, uint, NULL, S_IRUGO | S_IWUSR); +module_param_array(id, uint, NULL, S_IRUGO | S_IWUSR); +module_param(ulaw, uint, S_IRUGO | S_IWUSR); +module_param(debug, uint, S_IRUGO | S_IWUSR); + +/* + * send a frame via socket, if open and restart timer + */ +static int +l1oip_socket_send(struct l1oip *hc, u8 localcodec, u8 channel, u32 chanmask, + u16 timebase, u8 *buf, int len) +{ + u8 *p; + int multi = 0; + u8 frame[len+32]; + struct socket *socket = NULL; + mm_segment_t oldfs; + + if (debug & DEBUG_L1OIP_MSG) + printk(KERN_DEBUG "%s: sending data to socket (len = %d)\n", + __func__, len); + + p = frame; + + /* restart timer */ + if ((int)(hc->keep_tl.expires-jiffies) < 5*HZ) { + del_timer(&hc->keep_tl); + hc->keep_tl.expires = jiffies + L1OIP_KEEPALIVE*HZ; + add_timer(&hc->keep_tl); + } else + hc->keep_tl.expires = jiffies + L1OIP_KEEPALIVE*HZ; + + if (debug & DEBUG_L1OIP_MSG) + printk(KERN_DEBUG "%s: resetting timer\n", __func__); + + /* drop if we have no remote ip or port */ + if (!hc->sin_remote.sin_addr.s_addr || !hc->sin_remote.sin_port) { + if (debug & DEBUG_L1OIP_MSG) + printk(KERN_DEBUG "%s: dropping frame, because remote " + "IP is not set.\n", __func__); + return len; + } + + /* assemble frame */ + *p++ = (L1OIP_VERSION<<6) /* version and coding */ + | (hc->pri?0x20:0x00) /* type */ + | (hc->id?0x10:0x00) /* id */ + | localcodec; + if (hc->id) { + *p++ = hc->id>>24; /* id */ + *p++ = hc->id>>16; + *p++ = hc->id>>8; + *p++ = hc->id; + } + *p++ = (multi == 1)?0x80:0x00 + channel; /* m-flag, channel */ + if (multi == 1) + *p++ = len; /* length */ + *p++ = timebase>>8; /* time base */ + *p++ = timebase; + + if (buf && len) { /* add data to frame */ + if (localcodec == 1 && ulaw) + l1oip_ulaw_to_alaw(buf, len, p); + else if (localcodec == 2 && !ulaw) + l1oip_alaw_to_ulaw(buf, len, p); + else if (localcodec == 3) + len = l1oip_law_to_4bit(buf, len, p, + &hc->chan[channel].codecstate); + else + memcpy(p, buf, len); + } + len += p - frame; + + /* check for socket in safe condition */ + spin_lock(&hc->socket_lock); + if (!hc->socket) { + spin_unlock(&hc->socket_lock); + return 0; + } + /* seize socket */ + socket = hc->socket; + hc->socket = NULL; + spin_unlock(&hc->socket_lock); + /* send packet */ + if (debug & DEBUG_L1OIP_MSG) + printk(KERN_DEBUG "%s: sending packet to socket (len " + "= %d)\n", __func__, len); + hc->sendiov.iov_base = frame; + hc->sendiov.iov_len = len; + oldfs = get_fs(); + set_fs(KERNEL_DS); + len = sock_sendmsg(socket, &hc->sendmsg, len); + set_fs(oldfs); + /* give socket back */ + hc->socket = socket; /* no locking required */ + + return len; +} + + +/* + * receive channel data from socket + */ +static void +l1oip_socket_recv(struct l1oip *hc, u8 remotecodec, u8 channel, u16 timebase, + u8 *buf, int len) +{ + struct sk_buff *nskb; + struct bchannel *bch; + struct dchannel *dch; + u8 *p; + u32 rx_counter; + + if (len == 0) { + if (debug & DEBUG_L1OIP_MSG) + printk(KERN_DEBUG "%s: received empty keepalive data, " + "ignoring\n", __func__); + return; + } + + if (debug & DEBUG_L1OIP_MSG) + printk(KERN_DEBUG "%s: received data, sending to mISDN (%d)\n", + __func__, len); + + if (channel < 1 || channel > 127) { + printk(KERN_WARNING "%s: packet error - channel %d out of " + "range\n", __func__, channel); + return; + } + dch = hc->chan[channel].dch; + bch = hc->chan[channel].bch; + if (!dch && !bch) { + printk(KERN_WARNING "%s: packet error - channel %d not in " + "stack\n", __func__, channel); + return; + } + + /* prepare message */ + nskb = mI_alloc_skb((remotecodec == 3)?(len<<1):len, GFP_ATOMIC); + if (!nskb) { + printk(KERN_ERR "%s: No mem for skb.\n", __func__); + return; + } + p = skb_put(nskb, (remotecodec == 3)?(len<<1):len); + + if (remotecodec == 1 && ulaw) + l1oip_alaw_to_ulaw(buf, len, p); + else if (remotecodec == 2 && !ulaw) + l1oip_ulaw_to_alaw(buf, len, p); + else if (remotecodec == 3) + len = l1oip_4bit_to_law(buf, len, p); + else + memcpy(p, buf, len); + + /* send message up */ + if (dch && len >= 2) { + dch->rx_skb = nskb; + recv_Dchannel(dch); + } + if (bch) { + /* expand 16 bit sequence number to 32 bit sequence number */ + rx_counter = hc->chan[channel].rx_counter; + if (((s16)(timebase - rx_counter)) >= 0) { + /* time has changed forward */ + if (timebase >= (rx_counter & 0xffff)) + rx_counter = + (rx_counter & 0xffff0000) | timebase; + else + rx_counter = ((rx_counter & 0xffff0000)+0x10000) + | timebase; + } else { + /* time has changed backwards */ + if (timebase < (rx_counter & 0xffff)) + rx_counter = + (rx_counter & 0xffff0000) | timebase; + else + rx_counter = ((rx_counter & 0xffff0000)-0x10000) + | timebase; + } + hc->chan[channel].rx_counter = rx_counter; + +#ifdef REORDER_DEBUG + if (hc->chan[channel].disorder_flag) { + struct sk_buff *skb; + int cnt; + skb = hc->chan[channel].disorder_skb; + hc->chan[channel].disorder_skb = nskb; + nskb = skb; + cnt = hc->chan[channel].disorder_cnt; + hc->chan[channel].disorder_cnt = rx_counter; + rx_counter = cnt; + } + hc->chan[channel].disorder_flag ^= 1; + if (nskb) +#endif + queue_ch_frame(&bch->ch, PH_DATA_IND, rx_counter, nskb); + } +} + + +/* + * parse frame and extract channel data + */ +static void +l1oip_socket_parse(struct l1oip *hc, struct sockaddr_in *sin, u8 *buf, int len) +{ + u32 id; + u8 channel; + u8 remotecodec; + u16 timebase; + int m, mlen; + int len_start = len; /* initial frame length */ + struct dchannel *dch = hc->chan[hc->d_idx].dch; + + if (debug & DEBUG_L1OIP_MSG) + printk(KERN_DEBUG "%s: received frame, parsing... (%d)\n", + __func__, len); + + /* check lenght */ + if (len < 1+1+2) { + printk(KERN_WARNING "%s: packet error - length %d below " + "4 bytes\n", __func__, len); + return; + } + + /* check version */ + if (((*buf)>>6) != L1OIP_VERSION) { + printk(KERN_WARNING "%s: packet error - unknown version %d\n", + __func__, buf[0]>>6); + return; + } + + /* check type */ + if (((*buf)&0x20) && !hc->pri) { + printk(KERN_WARNING "%s: packet error - received E1 packet " + "on S0 interface\n", __func__); + return; + } + if (!((*buf)&0x20) && hc->pri) { + printk(KERN_WARNING "%s: packet error - received S0 packet " + "on E1 interface\n", __func__); + return; + } + + /* get id flag */ + id = (*buf>>4)&1; + + /* check coding */ + remotecodec = (*buf) & 0x0f; + if (remotecodec > 3) { + printk(KERN_WARNING "%s: packet error - remotecodec %d " + "unsupported\n", __func__, remotecodec); + return; + } + buf++; + len--; + + /* check id */ + if (id) { + if (!hc->id) { + printk(KERN_WARNING "%s: packet error - packet has id " + "0x%x, but we have not\n", __func__, id); + return; + } + if (len < 4) { + printk(KERN_WARNING "%s: packet error - packet too " + "short for ID value\n", __func__); + return; + } + id = (*buf++) << 24; + id += (*buf++) << 16; + id += (*buf++) << 8; + id += (*buf++); + len -= 4; + + if (id != hc->id) { + printk(KERN_WARNING "%s: packet error - ID mismatch, " + "got 0x%x, we 0x%x\n", + __func__, id, hc->id); + return; + } + } else { + if (hc->id) { + printk(KERN_WARNING "%s: packet error - packet has no " + "ID, but we have\n", __func__); + return; + } + } + +multiframe: + if (len < 1) { + printk(KERN_WARNING "%s: packet error - packet too short, " + "channel expected at position %d.\n", + __func__, len-len_start+1); + return; + } + + /* get channel and multiframe flag */ + channel = *buf&0x7f; + m = *buf >> 7; + buf++; + len--; + + /* check length on multiframe */ + if (m) { + if (len < 1) { + printk(KERN_WARNING "%s: packet error - packet too " + "short, length expected at position %d.\n", + __func__, len_start-len-1); + return; + } + + mlen = *buf++; + len--; + if (mlen == 0) + mlen = 256; + if (len < mlen+3) { + printk(KERN_WARNING "%s: packet error - length %d at " + "position %d exceeds total length %d.\n", + __func__, mlen, len_start-len-1, len_start); + return; + } + if (len == mlen+3) { + printk(KERN_WARNING "%s: packet error - length %d at " + "position %d will not allow additional " + "packet.\n", + __func__, mlen, len_start-len+1); + return; + } + } else + mlen = len-2; /* single frame, substract timebase */ + + if (len < 2) { + printk(KERN_WARNING "%s: packet error - packet too short, time " + "base expected at position %d.\n", + __func__, len-len_start+1); + return; + } + + /* get time base */ + timebase = (*buf++) << 8; + timebase |= (*buf++); + len -= 2; + + /* if inactive, we send up a PH_ACTIVATE and activate */ + if (!test_bit(FLG_ACTIVE, &dch->Flags)) { + if (debug & (DEBUG_L1OIP_MSG|DEBUG_L1OIP_SOCKET)) + printk(KERN_DEBUG "%s: interface become active due to " + "received packet\n", __func__); + test_and_set_bit(FLG_ACTIVE, &dch->Flags); + _queue_data(&dch->dev.D, PH_ACTIVATE_IND, MISDN_ID_ANY, 0, + NULL, GFP_ATOMIC); + } + + /* distribute packet */ + l1oip_socket_recv(hc, remotecodec, channel, timebase, buf, mlen); + buf += mlen; + len -= mlen; + + /* multiframe */ + if (m) + goto multiframe; + + /* restart timer */ + if ((int)(hc->timeout_tl.expires-jiffies) < 5*HZ || !hc->timeout_on) { + hc->timeout_on = 1; + del_timer(&hc->timeout_tl); + hc->timeout_tl.expires = jiffies + L1OIP_TIMEOUT*HZ; + add_timer(&hc->timeout_tl); + } else /* only adjust timer */ + hc->timeout_tl.expires = jiffies + L1OIP_TIMEOUT*HZ; + + /* if ip or source port changes */ + if ((hc->sin_remote.sin_addr.s_addr != sin->sin_addr.s_addr) + || (hc->sin_remote.sin_port != sin->sin_port)) { + if (debug & DEBUG_L1OIP_SOCKET) + printk(KERN_DEBUG "%s: remote address changes from " + "0x%08x to 0x%08x (port %d to %d)\n", __func__, + ntohl(hc->sin_remote.sin_addr.s_addr), + ntohl(sin->sin_addr.s_addr), + ntohs(hc->sin_remote.sin_port), + ntohs(sin->sin_port)); + hc->sin_remote.sin_addr.s_addr = sin->sin_addr.s_addr; + hc->sin_remote.sin_port = sin->sin_port; + } +} + + +/* + * socket stuff + */ +static int +l1oip_socket_thread(void *data) +{ + struct l1oip *hc = (struct l1oip *)data; + int ret = 0; + struct msghdr msg; + struct iovec iov; + mm_segment_t oldfs; + struct sockaddr_in sin_rx; + unsigned char recvbuf[1500]; + int recvlen; + struct socket *socket = NULL; + DECLARE_COMPLETION(wait); + + /* make daemon */ + allow_signal(SIGTERM); + + /* create socket */ + if (sock_create(PF_INET, SOCK_DGRAM, IPPROTO_UDP, &socket)) { + printk(KERN_ERR "%s: Failed to create socket.\n", __func__); + return -EIO; + } + + /* set incoming address */ + hc->sin_local.sin_family = AF_INET; + hc->sin_local.sin_addr.s_addr = INADDR_ANY; + hc->sin_local.sin_port = htons((unsigned short)hc->localport); + + /* set outgoing address */ + hc->sin_remote.sin_family = AF_INET; + hc->sin_remote.sin_addr.s_addr = htonl(hc->remoteip); + hc->sin_remote.sin_port = htons((unsigned short)hc->remoteport); + + /* bind to incomming port */ + if (socket->ops->bind(socket, (struct sockaddr *)&hc->sin_local, + sizeof(hc->sin_local))) { + printk(KERN_ERR "%s: Failed to bind socket to port %d.\n", + __func__, hc->localport); + ret = -EINVAL; + goto fail; + } + + /* check sk */ + if (socket->sk == NULL) { + printk(KERN_ERR "%s: socket->sk == NULL\n", __func__); + ret = -EIO; + goto fail; + } + + /* build receive message */ + msg.msg_name = &sin_rx; + msg.msg_namelen = sizeof(sin_rx); + msg.msg_control = NULL; + msg.msg_controllen = 0; + msg.msg_iov = &iov; + msg.msg_iovlen = 1; + + /* build send message */ + hc->sendmsg.msg_name = &hc->sin_remote; + hc->sendmsg.msg_namelen = sizeof(hc->sin_remote); + hc->sendmsg.msg_control = NULL; + hc->sendmsg.msg_controllen = 0; + hc->sendmsg.msg_iov = &hc->sendiov; + hc->sendmsg.msg_iovlen = 1; + + /* give away socket */ + spin_lock(&hc->socket_lock); + hc->socket = socket; + spin_unlock(&hc->socket_lock); + + /* read loop */ + if (debug & DEBUG_L1OIP_SOCKET) + printk(KERN_DEBUG "%s: socket created and open\n", + __func__); + while (!signal_pending(current)) { + iov.iov_base = recvbuf; + iov.iov_len = sizeof(recvbuf); + oldfs = get_fs(); + set_fs(KERNEL_DS); + recvlen = sock_recvmsg(socket, &msg, sizeof(recvbuf), 0); + set_fs(oldfs); + if (recvlen > 0) { + l1oip_socket_parse(hc, &sin_rx, recvbuf, recvlen); + } else { + if (debug & DEBUG_L1OIP_SOCKET) + printk(KERN_WARNING "%s: broken pipe on socket\n", + __func__); + } + } + + /* get socket back, check first if in use, maybe by send function */ + spin_lock(&hc->socket_lock); + /* if hc->socket is NULL, it is in use until it is given back */ + while (!hc->socket) { + spin_unlock(&hc->socket_lock); + schedule_timeout(HZ/10); + spin_lock(&hc->socket_lock); + } + hc->socket = NULL; + spin_unlock(&hc->socket_lock); + + if (debug & DEBUG_L1OIP_SOCKET) + printk(KERN_DEBUG "%s: socket thread terminating\n", + __func__); + +fail: + /* close socket */ + if (socket) + sock_release(socket); + + /* if we got killed, signal completion */ + complete(&hc->socket_complete); + hc->socket_thread = NULL; /* show termination of thread */ + + if (debug & DEBUG_L1OIP_SOCKET) + printk(KERN_DEBUG "%s: socket thread terminated\n", + __func__); + return ret; +} + +static void +l1oip_socket_close(struct l1oip *hc) +{ + /* kill thread */ + if (hc->socket_thread) { + if (debug & DEBUG_L1OIP_SOCKET) + printk(KERN_DEBUG "%s: socket thread exists, " + "killing...\n", __func__); + send_sig(SIGTERM, hc->socket_thread, 0); + wait_for_completion(&hc->socket_complete); + } +} + +static int +l1oip_socket_open(struct l1oip *hc) +{ + /* in case of reopen, we need to close first */ + l1oip_socket_close(hc); + + init_completion(&hc->socket_complete); + + /* create receive process */ + hc->socket_thread = kthread_run(l1oip_socket_thread, hc, "l1oip_%s", + hc->name); + if (IS_ERR(hc->socket_thread)) { + int err = PTR_ERR(hc->socket_thread); + printk(KERN_ERR "%s: Failed (%d) to create socket process.\n", + __func__, err); + hc->socket_thread = NULL; + sock_release(hc->socket); + return err; + } + if (debug & DEBUG_L1OIP_SOCKET) + printk(KERN_DEBUG "%s: socket thread created\n", __func__); + + return 0; +} + + +static void +l1oip_send_bh(struct work_struct *work) +{ + struct l1oip *hc = container_of(work, struct l1oip, workq); + + if (debug & (DEBUG_L1OIP_MSG|DEBUG_L1OIP_SOCKET)) + printk(KERN_DEBUG "%s: keepalive timer expired, sending empty " + "frame on dchannel\n", __func__); + + /* send an empty l1oip frame at D-channel */ + l1oip_socket_send(hc, 0, hc->d_idx, 0, 0, NULL, 0); +} + + +/* + * timer stuff + */ +static void +l1oip_keepalive(void *data) +{ + struct l1oip *hc = (struct l1oip *)data; + + schedule_work(&hc->workq); +} + +static void +l1oip_timeout(void *data) +{ + struct l1oip *hc = (struct l1oip *)data; + struct dchannel *dch = hc->chan[hc->d_idx].dch; + + if (debug & DEBUG_L1OIP_MSG) + printk(KERN_DEBUG "%s: timeout timer expired, turn layer one " + "down.\n", __func__); + + hc->timeout_on = 0; /* state that timer must be initialized next time */ + + /* if timeout, we send up a PH_DEACTIVATE and deactivate */ + if (test_bit(FLG_ACTIVE, &dch->Flags)) { + if (debug & (DEBUG_L1OIP_MSG|DEBUG_L1OIP_SOCKET)) + printk(KERN_DEBUG "%s: interface become deactivated " + "due to timeout\n", __func__); + test_and_clear_bit(FLG_ACTIVE, &dch->Flags); + _queue_data(&dch->dev.D, PH_DEACTIVATE_IND, MISDN_ID_ANY, 0, + NULL, GFP_ATOMIC); + } + + /* if we have ondemand set, we remove ip address */ + if (hc->ondemand) { + if (debug & DEBUG_L1OIP_MSG) + printk(KERN_DEBUG "%s: on demand causes ip address to " + "be removed\n", __func__); + hc->sin_remote.sin_addr.s_addr = 0; + } +} + + +/* + * message handling + */ +static int +handle_dmsg(struct mISDNchannel *ch, struct sk_buff *skb) +{ + struct mISDNdevice *dev = container_of(ch, struct mISDNdevice, D); + struct dchannel *dch = container_of(dev, struct dchannel, dev); + struct l1oip *hc = dch->hw; + struct mISDNhead *hh = mISDN_HEAD_P(skb); + int ret = -EINVAL; + int l, ll; + unsigned char *p; + + switch (hh->prim) { + case PH_DATA_REQ: + if (skb->len < 1) { + printk(KERN_WARNING "%s: skb too small\n", + __func__); + break; + } + if (skb->len > MAX_DFRAME_LEN_L1 || skb->len > L1OIP_MAX_LEN) { + printk(KERN_WARNING "%s: skb too large\n", + __func__); + break; + } + /* send frame */ + p = skb->data; + l = skb->len; + while (l) { + ll = (l < L1OIP_MAX_PERFRAME)?l:L1OIP_MAX_PERFRAME; + l1oip_socket_send(hc, 0, dch->slot, 0, + hc->chan[dch->slot].tx_counter++, p, ll); + p += ll; + l -= ll; + } + skb_trim(skb, 0); + queue_ch_frame(ch, PH_DATA_CNF, hh->id, skb); + return 0; + case PH_ACTIVATE_REQ: + if (debug & (DEBUG_L1OIP_MSG|DEBUG_L1OIP_SOCKET)) + printk(KERN_DEBUG "%s: PH_ACTIVATE channel %d (1..%d)\n" + , __func__, dch->slot, hc->b_num+1); + skb_trim(skb, 0); + if (test_bit(FLG_ACTIVE, &dch->Flags)) + queue_ch_frame(ch, PH_ACTIVATE_IND, hh->id, skb); + else + queue_ch_frame(ch, PH_DEACTIVATE_IND, hh->id, skb); + return 0; + case PH_DEACTIVATE_REQ: + if (debug & (DEBUG_L1OIP_MSG|DEBUG_L1OIP_SOCKET)) + printk(KERN_DEBUG "%s: PH_DEACTIVATE channel %d " + "(1..%d)\n", __func__, dch->slot, + hc->b_num+1); + skb_trim(skb, 0); + if (test_bit(FLG_ACTIVE, &dch->Flags)) + queue_ch_frame(ch, PH_ACTIVATE_IND, hh->id, skb); + else + queue_ch_frame(ch, PH_DEACTIVATE_IND, hh->id, skb); + return 0; + } + if (!ret) + dev_kfree_skb(skb); + return ret; +} + +static int +channel_dctrl(struct dchannel *dch, struct mISDN_ctrl_req *cq) +{ + int ret = 0; + struct l1oip *hc = dch->hw; + + switch (cq->op) { + case MISDN_CTRL_GETOP: + cq->op = MISDN_CTRL_SETPEER | MISDN_CTRL_UNSETPEER; + break; + case MISDN_CTRL_SETPEER: + hc->remoteip = (u32)cq->p1; + hc->remoteport = cq->p2 & 0xffff; + hc->localport = cq->p2 >> 16; + if (!hc->remoteport) + hc->remoteport = hc->localport; + if (debug & DEBUG_L1OIP_SOCKET) + printk(KERN_DEBUG "%s: got new ip address from user " + "space.\n", __func__); + l1oip_socket_open(hc); + break; + case MISDN_CTRL_UNSETPEER: + if (debug & DEBUG_L1OIP_SOCKET) + printk(KERN_DEBUG "%s: removing ip address.\n", + __func__); + hc->remoteip = 0; + l1oip_socket_open(hc); + break; + default: + printk(KERN_WARNING "%s: unknown Op %x\n", + __func__, cq->op); + ret = -EINVAL; + break; + } + return ret; +} + +static int +open_dchannel(struct l1oip *hc, struct dchannel *dch, struct channel_req *rq) +{ + if (debug & DEBUG_HW_OPEN) + printk(KERN_DEBUG "%s: dev(%d) open from %p\n", __func__, + dch->dev.id, __builtin_return_address(0)); + if (rq->protocol == ISDN_P_NONE) + return -EINVAL; + if ((dch->dev.D.protocol != ISDN_P_NONE) && + (dch->dev.D.protocol != rq->protocol)) { + if (debug & DEBUG_HW_OPEN) + printk(KERN_WARNING "%s: change protocol %x to %x\n", + __func__, dch->dev.D.protocol, rq->protocol); + } + if (dch->dev.D.protocol != rq->protocol) + dch->dev.D.protocol = rq->protocol; + + if (test_bit(FLG_ACTIVE, &dch->Flags)) { + _queue_data(&dch->dev.D, PH_ACTIVATE_IND, MISDN_ID_ANY, + 0, NULL, GFP_KERNEL); + } + rq->ch = &dch->dev.D; + if (!try_module_get(THIS_MODULE)) + printk(KERN_WARNING "%s:cannot get module\n", __func__); + return 0; +} + +static int +open_bchannel(struct l1oip *hc, struct dchannel *dch, struct channel_req *rq) +{ + struct bchannel *bch; + int ch; + + if (!test_bit(rq->adr.channel & 0x1f, + &dch->dev.channelmap[rq->adr.channel >> 5])) + return -EINVAL; + if (rq->protocol == ISDN_P_NONE) + return -EINVAL; + ch = rq->adr.channel; /* BRI: 1=B1 2=B2 PRI: 1..15,17.. */ + bch = hc->chan[ch].bch; + if (!bch) { + printk(KERN_ERR "%s:internal error ch %d has no bch\n", + __func__, ch); + return -EINVAL; + } + if (test_and_set_bit(FLG_OPEN, &bch->Flags)) + return -EBUSY; /* b-channel can be only open once */ + bch->ch.protocol = rq->protocol; + rq->ch = &bch->ch; + if (!try_module_get(THIS_MODULE)) + printk(KERN_WARNING "%s:cannot get module\n", __func__); + return 0; +} + +static int +l1oip_dctrl(struct mISDNchannel *ch, u_int cmd, void *arg) +{ + struct mISDNdevice *dev = container_of(ch, struct mISDNdevice, D); + struct dchannel *dch = container_of(dev, struct dchannel, dev); + struct l1oip *hc = dch->hw; + struct channel_req *rq; + int err = 0; + + if (dch->debug & DEBUG_HW) + printk(KERN_DEBUG "%s: cmd:%x %p\n", + __func__, cmd, arg); + switch (cmd) { + case OPEN_CHANNEL: + rq = arg; + switch (rq->protocol) { + case ISDN_P_TE_S0: + case ISDN_P_NT_S0: + if (hc->pri) { + err = -EINVAL; + break; + } + err = open_dchannel(hc, dch, rq); + break; + case ISDN_P_TE_E1: + case ISDN_P_NT_E1: + if (!hc->pri) { + err = -EINVAL; + break; + } + err = open_dchannel(hc, dch, rq); + break; + default: + err = open_bchannel(hc, dch, rq); + } + break; + case CLOSE_CHANNEL: + if (debug & DEBUG_HW_OPEN) + printk(KERN_DEBUG "%s: dev(%d) close from %p\n", + __func__, dch->dev.id, + __builtin_return_address(0)); + module_put(THIS_MODULE); + break; + case CONTROL_CHANNEL: + err = channel_dctrl(dch, arg); + break; + default: + if (dch->debug & DEBUG_HW) + printk(KERN_DEBUG "%s: unknown command %x\n", + __func__, cmd); + err = -EINVAL; + } + return err; +} + +static int +handle_bmsg(struct mISDNchannel *ch, struct sk_buff *skb) +{ + struct bchannel *bch = container_of(ch, struct bchannel, ch); + struct l1oip *hc = bch->hw; + int ret = -EINVAL; + struct mISDNhead *hh = mISDN_HEAD_P(skb); + int l, ll, i; + unsigned char *p; + + switch (hh->prim) { + case PH_DATA_REQ: + if (skb->len <= 0) { + printk(KERN_WARNING "%s: skb too small\n", + __func__); + break; + } + if (skb->len > MAX_DFRAME_LEN_L1 || skb->len > L1OIP_MAX_LEN) { + printk(KERN_WARNING "%s: skb too large\n", + __func__); + break; + } + /* check for AIS / ulaw-silence */ + p = skb->data; + l = skb->len; + for (i = 0; i < l; i++) { + if (*p++ != 0xff) + break; + } + if (i == l) { + if (debug & DEBUG_L1OIP_MSG) + printk(KERN_DEBUG "%s: got AIS, not sending, " + "but counting\n", __func__); + hc->chan[bch->slot].tx_counter += l; + skb_trim(skb, 0); + queue_ch_frame(ch, PH_DATA_CNF, hh->id, skb); + return 0; + } + /* check for silence */ + p = skb->data; + l = skb->len; + for (i = 0; i < l; i++) { + if (*p++ != 0x2a) + break; + } + if (i == l) { + if (debug & DEBUG_L1OIP_MSG) + printk(KERN_DEBUG "%s: got silence, not sending" + ", but counting\n", __func__); + hc->chan[bch->slot].tx_counter += l; + skb_trim(skb, 0); + queue_ch_frame(ch, PH_DATA_CNF, hh->id, skb); + return 0; + } + + /* send frame */ + p = skb->data; + l = skb->len; + while (l) { + ll = (l < L1OIP_MAX_PERFRAME)?l:L1OIP_MAX_PERFRAME; + l1oip_socket_send(hc, hc->codec, bch->slot, 0, + hc->chan[bch->slot].tx_counter, p, ll); + hc->chan[bch->slot].tx_counter += ll; + p += ll; + l -= ll; + } + skb_trim(skb, 0); + queue_ch_frame(ch, PH_DATA_CNF, hh->id, skb); + return 0; + case PH_ACTIVATE_REQ: + if (debug & (DEBUG_L1OIP_MSG|DEBUG_L1OIP_SOCKET)) + printk(KERN_DEBUG "%s: PH_ACTIVATE channel %d (1..%d)\n" + , __func__, bch->slot, hc->b_num+1); + hc->chan[bch->slot].codecstate = 0; + test_and_set_bit(FLG_ACTIVE, &bch->Flags); + skb_trim(skb, 0); + queue_ch_frame(ch, PH_ACTIVATE_IND, hh->id, skb); + return 0; + case PH_DEACTIVATE_REQ: + if (debug & (DEBUG_L1OIP_MSG|DEBUG_L1OIP_SOCKET)) + printk(KERN_DEBUG "%s: PH_DEACTIVATE channel %d " + "(1..%d)\n", __func__, bch->slot, + hc->b_num+1); + test_and_clear_bit(FLG_ACTIVE, &bch->Flags); + skb_trim(skb, 0); + queue_ch_frame(ch, PH_DEACTIVATE_IND, hh->id, skb); + return 0; + } + if (!ret) + dev_kfree_skb(skb); + return ret; +} + +static int +channel_bctrl(struct bchannel *bch, struct mISDN_ctrl_req *cq) +{ + int ret = 0; + struct dsp_features *features = + (struct dsp_features *)(*((u_long *)&cq->p1)); + + switch (cq->op) { + case MISDN_CTRL_GETOP: + cq->op = MISDN_CTRL_HW_FEATURES_OP; + break; + case MISDN_CTRL_HW_FEATURES: /* fill features structure */ + if (debug & DEBUG_L1OIP_MSG) + printk(KERN_DEBUG "%s: HW_FEATURE request\n", + __func__); + /* create confirm */ + features->unclocked = 1; + features->unordered = 1; + break; + default: + printk(KERN_WARNING "%s: unknown Op %x\n", + __func__, cq->op); + ret = -EINVAL; + break; + } + return ret; +} + +static int +l1oip_bctrl(struct mISDNchannel *ch, u_int cmd, void *arg) +{ + struct bchannel *bch = container_of(ch, struct bchannel, ch); + int err = -EINVAL; + + if (bch->debug & DEBUG_HW) + printk(KERN_DEBUG "%s: cmd:%x %p\n", + __func__, cmd, arg); + switch (cmd) { + case CLOSE_CHANNEL: + test_and_clear_bit(FLG_OPEN, &bch->Flags); + test_and_clear_bit(FLG_ACTIVE, &bch->Flags); + ch->protocol = ISDN_P_NONE; + ch->peer = NULL; + module_put(THIS_MODULE); + err = 0; + break; + case CONTROL_CHANNEL: + err = channel_bctrl(bch, arg); + break; + default: + printk(KERN_WARNING "%s: unknown prim(%x)\n", + __func__, cmd); + } + return err; +} + + +/* + * cleanup module and stack + */ +static void +release_card(struct l1oip *hc) +{ + int ch; + + if (timer_pending(&hc->keep_tl)) + del_timer(&hc->keep_tl); + + if (timer_pending(&hc->timeout_tl)) + del_timer(&hc->timeout_tl); + + if (hc->socket_thread) + l1oip_socket_close(hc); + + if (hc->registered && hc->chan[hc->d_idx].dch) + mISDN_unregister_device(&hc->chan[hc->d_idx].dch->dev); + for (ch = 0; ch < 128; ch++) { + if (hc->chan[ch].dch) { + mISDN_freedchannel(hc->chan[ch].dch); + kfree(hc->chan[ch].dch); + } + if (hc->chan[ch].bch) { + mISDN_freebchannel(hc->chan[ch].bch); + kfree(hc->chan[ch].bch); +#ifdef REORDER_DEBUG + if (hc->chan[ch].disorder_skb) + dev_kfree_skb(hc->chan[ch].disorder_skb); +#endif + } + } + + spin_lock(&l1oip_lock); + list_del(&hc->list); + spin_unlock(&l1oip_lock); + + kfree(hc); +} + +static void +l1oip_cleanup(void) +{ + struct l1oip *hc, *next; + + list_for_each_entry_safe(hc, next, &l1oip_ilist, list) + release_card(hc); + + l1oip_4bit_free(); +} + + +/* + * module and stack init + */ +static int +init_card(struct l1oip *hc, int pri, int bundle) +{ + struct dchannel *dch; + struct bchannel *bch; + int ret; + int i, ch; + + spin_lock_init(&hc->socket_lock); + hc->idx = l1oip_cnt; + hc->pri = pri; + hc->d_idx = pri?16:3; + hc->b_num = pri?30:2; + hc->bundle = bundle; + if (hc->pri) + sprintf(hc->name, "l1oip-e1.%d", l1oip_cnt + 1); + else + sprintf(hc->name, "l1oip-s0.%d", l1oip_cnt + 1); + + switch (codec[l1oip_cnt]) { + case 0: /* as is */ + case 1: /* alaw */ + case 2: /* ulaw */ + case 3: /* 4bit */ + break; + default: + printk(KERN_ERR "Codec(%d) not supported.\n", + codec[l1oip_cnt]); + return -EINVAL; + } + hc->codec = codec[l1oip_cnt]; + if (debug & DEBUG_L1OIP_INIT) + printk(KERN_DEBUG "%s: using codec %d\n", + __func__, hc->codec); + + if (id[l1oip_cnt] == 0) { + printk(KERN_WARNING "Warning: No 'id' value given or " + "0, this is highly unsecure. Please use 32 " + "bit randmom number 0x...\n"); + } + hc->id = id[l1oip_cnt]; + if (debug & DEBUG_L1OIP_INIT) + printk(KERN_DEBUG "%s: using id 0x%x\n", __func__, hc->id); + + hc->ondemand = ondemand[l1oip_cnt]; + if (hc->ondemand && !hc->id) { + printk(KERN_ERR "%s: ondemand option only allowed in " + "conjunction with non 0 ID\n", __func__); + return -EINVAL; + } + + if (limit[l1oip_cnt]) + hc->b_num = limit[l1oip_cnt]; + if (!pri && hc->b_num > 2) { + printk(KERN_ERR "Maximum limit for BRI interface is 2 " + "channels.\n"); + return -EINVAL; + } + if (pri && hc->b_num > 126) { + printk(KERN_ERR "Maximum limit for PRI interface is 126 " + "channels.\n"); + return -EINVAL; + } + if (pri && hc->b_num > 30) { + printk(KERN_WARNING "Maximum limit for BRI interface is 30 " + "channels.\n"); + printk(KERN_WARNING "Your selection of %d channels must be " + "supported by application.\n", hc->limit); + } + + hc->remoteip = ip[l1oip_cnt<<2] << 24 + | ip[(l1oip_cnt<<2)+1] << 16 + | ip[(l1oip_cnt<<2)+2] << 8 + | ip[(l1oip_cnt<<2)+3]; + hc->localport = port[l1oip_cnt]?:(L1OIP_DEFAULTPORT+l1oip_cnt); + if (remoteport[l1oip_cnt]) + hc->remoteport = remoteport[l1oip_cnt]; + else + hc->remoteport = hc->localport; + if (debug & DEBUG_L1OIP_INIT) + printk(KERN_DEBUG "%s: using local port %d remote ip " + "%d.%d.%d.%d port %d ondemand %d\n", __func__, + hc->localport, hc->remoteip >> 24, + (hc->remoteip >> 16) & 0xff, + (hc->remoteip >> 8) & 0xff, hc->remoteip & 0xff, + hc->remoteport, hc->ondemand); + + dch = kzalloc(sizeof(struct dchannel), GFP_KERNEL); + if (!dch) + return -ENOMEM; + dch->debug = debug; + mISDN_initdchannel(dch, MAX_DFRAME_LEN_L1, NULL); + dch->hw = hc; + if (pri) + dch->dev.Dprotocols = (1 << ISDN_P_TE_E1) | (1 << ISDN_P_NT_E1); + else + dch->dev.Dprotocols = (1 << ISDN_P_TE_S0) | (1 << ISDN_P_NT_S0); + dch->dev.Bprotocols = (1 << (ISDN_P_B_RAW & ISDN_P_B_MASK)) | + (1 << (ISDN_P_B_HDLC & ISDN_P_B_MASK)); + dch->dev.D.send = handle_dmsg; + dch->dev.D.ctrl = l1oip_dctrl; + dch->dev.nrbchan = hc->b_num; + dch->slot = hc->d_idx; + hc->chan[hc->d_idx].dch = dch; + i = 1; + for (ch = 0; ch < dch->dev.nrbchan; ch++) { + if (ch == 15) + i++; + bch = kzalloc(sizeof(struct bchannel), GFP_KERNEL); + if (!bch) { + printk(KERN_ERR "%s: no memory for bchannel\n", + __func__); + return -ENOMEM; + } + bch->nr = i + ch; + bch->slot = i + ch; + bch->debug = debug; + mISDN_initbchannel(bch, MAX_DATA_MEM); + bch->hw = hc; + bch->ch.send = handle_bmsg; + bch->ch.ctrl = l1oip_bctrl; + bch->ch.nr = i + ch; + list_add(&bch->ch.list, &dch->dev.bchannels); + hc->chan[i + ch].bch = bch; + test_and_set_bit(bch->nr & 0x1f, + &dch->dev.channelmap[bch->nr >> 5]); + } + ret = mISDN_register_device(&dch->dev, hc->name); + if (ret) + return ret; + hc->registered = 1; + + if (debug & DEBUG_L1OIP_INIT) + printk(KERN_DEBUG "%s: Setting up network card(%d)\n", + __func__, l1oip_cnt + 1); + ret = l1oip_socket_open(hc); + if (ret) + return ret; + + hc->keep_tl.function = (void *)l1oip_keepalive; + hc->keep_tl.data = (ulong)hc; + init_timer(&hc->keep_tl); + hc->keep_tl.expires = jiffies + 2*HZ; /* two seconds first time */ + add_timer(&hc->keep_tl); + + hc->timeout_tl.function = (void *)l1oip_timeout; + hc->timeout_tl.data = (ulong)hc; + init_timer(&hc->timeout_tl); + hc->timeout_on = 0; /* state that we have timer off */ + + return 0; +} + +static int __init +l1oip_init(void) +{ + int pri, bundle; + struct l1oip *hc; + int ret; + + printk(KERN_INFO "mISDN: Layer-1-over-IP driver Rev. %s\n", + l1oip_revision); + + INIT_LIST_HEAD(&l1oip_ilist); + spin_lock_init(&l1oip_lock); + + if (l1oip_4bit_alloc(ulaw)) + return -ENOMEM; + + l1oip_cnt = 0; + while (type[l1oip_cnt] && l1oip_cnt < MAX_CARDS) { + switch (type[l1oip_cnt] & 0xff) { + case 1: + pri = 0; + bundle = 0; + break; + case 2: + pri = 1; + bundle = 0; + break; + case 3: + pri = 0; + bundle = 1; + break; + case 4: + pri = 1; + bundle = 1; + break; + default: + printk(KERN_ERR "Card type(%d) not supported.\n", + type[l1oip_cnt] & 0xff); + l1oip_cleanup(); + return -EINVAL; + } + + if (debug & DEBUG_L1OIP_INIT) + printk(KERN_DEBUG "%s: interface %d is %s with %s.\n", + __func__, l1oip_cnt, pri?"PRI":"BRI", + bundle?"bundled IP packet for all B-channels" + :"seperate IP packets for every B-channel"); + + hc = kzalloc(sizeof(struct l1oip), GFP_ATOMIC); + if (!hc) { + printk(KERN_ERR "No kmem for L1-over-IP driver.\n"); + l1oip_cleanup(); + return -ENOMEM; + } + INIT_WORK(&hc->workq, (void *)l1oip_send_bh); + + spin_lock(&l1oip_lock); + list_add_tail(&hc->list, &l1oip_ilist); + spin_unlock(&l1oip_lock); + + ret = init_card(hc, pri, bundle); + if (ret) { + l1oip_cleanup(); + return ret; + } + + l1oip_cnt++; + } + printk(KERN_INFO "%d virtual devices registered\n", l1oip_cnt); + return 0; +} + +module_init(l1oip_init); +module_exit(l1oip_cleanup); + diff --git a/drivers/isdn/mISDN/layer1.c b/drivers/isdn/mISDN/layer1.c new file mode 100644 index 0000000..fced1a2 --- /dev/null +++ b/drivers/isdn/mISDN/layer1.c @@ -0,0 +1,403 @@ +/* + * + * Author Karsten Keil <kkeil@novell.com> + * + * Copyright 2008 by Karsten Keil <kkeil@novell.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + + +#include <linux/module.h> +#include <linux/mISDNhw.h> +#include "layer1.h" +#include "fsm.h" + +static int *debug; + +struct layer1 { + u_long Flags; + struct FsmInst l1m; + struct FsmTimer timer; + int delay; + struct dchannel *dch; + dchannel_l1callback *dcb; +}; + +#define TIMER3_VALUE 7000 + +static +struct Fsm l1fsm_s = {NULL, 0, 0, NULL, NULL}; + +enum { + ST_L1_F2, + ST_L1_F3, + ST_L1_F4, + ST_L1_F5, + ST_L1_F6, + ST_L1_F7, + ST_L1_F8, +}; + +#define L1S_STATE_COUNT (ST_L1_F8+1) + +static char *strL1SState[] = +{ + "ST_L1_F2", + "ST_L1_F3", + "ST_L1_F4", + "ST_L1_F5", + "ST_L1_F6", + "ST_L1_F7", + "ST_L1_F8", +}; + +enum { + EV_PH_ACTIVATE, + EV_PH_DEACTIVATE, + EV_RESET_IND, + EV_DEACT_CNF, + EV_DEACT_IND, + EV_POWER_UP, + EV_ANYSIG_IND, + EV_INFO2_IND, + EV_INFO4_IND, + EV_TIMER_DEACT, + EV_TIMER_ACT, + EV_TIMER3, +}; + +#define L1_EVENT_COUNT (EV_TIMER3 + 1) + +static char *strL1Event[] = +{ + "EV_PH_ACTIVATE", + "EV_PH_DEACTIVATE", + "EV_RESET_IND", + "EV_DEACT_CNF", + "EV_DEACT_IND", + "EV_POWER_UP", + "EV_ANYSIG_IND", + "EV_INFO2_IND", + "EV_INFO4_IND", + "EV_TIMER_DEACT", + "EV_TIMER_ACT", + "EV_TIMER3", +}; + +static void +l1m_debug(struct FsmInst *fi, char *fmt, ...) +{ + struct layer1 *l1 = fi->userdata; + va_list va; + + va_start(va, fmt); + printk(KERN_DEBUG "%s: ", l1->dch->dev.name); + vprintk(fmt, va); + printk("\n"); + va_end(va); +} + +static void +l1_reset(struct FsmInst *fi, int event, void *arg) +{ + mISDN_FsmChangeState(fi, ST_L1_F3); +} + +static void +l1_deact_cnf(struct FsmInst *fi, int event, void *arg) +{ + struct layer1 *l1 = fi->userdata; + + mISDN_FsmChangeState(fi, ST_L1_F3); + if (test_bit(FLG_L1_ACTIVATING, &l1->Flags)) + l1->dcb(l1->dch, HW_POWERUP_REQ); +} + +static void +l1_deact_req_s(struct FsmInst *fi, int event, void *arg) +{ + struct layer1 *l1 = fi->userdata; + + mISDN_FsmChangeState(fi, ST_L1_F3); + mISDN_FsmRestartTimer(&l1->timer, 550, EV_TIMER_DEACT, NULL, 2); + test_and_set_bit(FLG_L1_DEACTTIMER, &l1->Flags); +} + +static void +l1_power_up_s(struct FsmInst *fi, int event, void *arg) +{ + struct layer1 *l1 = fi->userdata; + + if (test_bit(FLG_L1_ACTIVATING, &l1->Flags)) { + mISDN_FsmChangeState(fi, ST_L1_F4); + l1->dcb(l1->dch, INFO3_P8); + } else + mISDN_FsmChangeState(fi, ST_L1_F3); +} + +static void +l1_go_F5(struct FsmInst *fi, int event, void *arg) +{ + mISDN_FsmChangeState(fi, ST_L1_F5); +} + +static void +l1_go_F8(struct FsmInst *fi, int event, void *arg) +{ + mISDN_FsmChangeState(fi, ST_L1_F8); +} + +static void +l1_info2_ind(struct FsmInst *fi, int event, void *arg) +{ + struct layer1 *l1 = fi->userdata; + + mISDN_FsmChangeState(fi, ST_L1_F6); + l1->dcb(l1->dch, INFO3_P8); +} + +static void +l1_info4_ind(struct FsmInst *fi, int event, void *arg) +{ + struct layer1 *l1 = fi->userdata; + + mISDN_FsmChangeState(fi, ST_L1_F7); + l1->dcb(l1->dch, INFO3_P8); + if (test_and_clear_bit(FLG_L1_DEACTTIMER, &l1->Flags)) + mISDN_FsmDelTimer(&l1->timer, 4); + if (!test_bit(FLG_L1_ACTIVATED, &l1->Flags)) { + if (test_and_clear_bit(FLG_L1_T3RUN, &l1->Flags)) + mISDN_FsmDelTimer(&l1->timer, 3); + mISDN_FsmRestartTimer(&l1->timer, 110, EV_TIMER_ACT, NULL, 2); + test_and_set_bit(FLG_L1_ACTTIMER, &l1->Flags); + } +} + +static void +l1_timer3(struct FsmInst *fi, int event, void *arg) +{ + struct layer1 *l1 = fi->userdata; + + test_and_clear_bit(FLG_L1_T3RUN, &l1->Flags); + if (test_and_clear_bit(FLG_L1_ACTIVATING, &l1->Flags)) { + if (test_and_clear_bit(FLG_L1_DBLOCKED, &l1->Flags)) + l1->dcb(l1->dch, HW_D_NOBLOCKED); + l1->dcb(l1->dch, PH_DEACTIVATE_IND); + } + if (l1->l1m.state != ST_L1_F6) { + mISDN_FsmChangeState(fi, ST_L1_F3); + l1->dcb(l1->dch, HW_POWERUP_REQ); + } +} + +static void +l1_timer_act(struct FsmInst *fi, int event, void *arg) +{ + struct layer1 *l1 = fi->userdata; + + test_and_clear_bit(FLG_L1_ACTTIMER, &l1->Flags); + test_and_set_bit(FLG_L1_ACTIVATED, &l1->Flags); + l1->dcb(l1->dch, PH_ACTIVATE_IND); +} + +static void +l1_timer_deact(struct FsmInst *fi, int event, void *arg) +{ + struct layer1 *l1 = fi->userdata; + + test_and_clear_bit(FLG_L1_DEACTTIMER, &l1->Flags); + test_and_clear_bit(FLG_L1_ACTIVATED, &l1->Flags); + if (test_and_clear_bit(FLG_L1_DBLOCKED, &l1->Flags)) + l1->dcb(l1->dch, HW_D_NOBLOCKED); + l1->dcb(l1->dch, PH_DEACTIVATE_IND); + l1->dcb(l1->dch, HW_DEACT_REQ); +} + +static void +l1_activate_s(struct FsmInst *fi, int event, void *arg) +{ + struct layer1 *l1 = fi->userdata; + + mISDN_FsmRestartTimer(&l1->timer, TIMER3_VALUE, EV_TIMER3, NULL, 2); + test_and_set_bit(FLG_L1_T3RUN, &l1->Flags); + l1->dcb(l1->dch, HW_RESET_REQ); +} + +static void +l1_activate_no(struct FsmInst *fi, int event, void *arg) +{ + struct layer1 *l1 = fi->userdata; + + if ((!test_bit(FLG_L1_DEACTTIMER, &l1->Flags)) && + (!test_bit(FLG_L1_T3RUN, &l1->Flags))) { + test_and_clear_bit(FLG_L1_ACTIVATING, &l1->Flags); + if (test_and_clear_bit(FLG_L1_DBLOCKED, &l1->Flags)) + l1->dcb(l1->dch, HW_D_NOBLOCKED); + l1->dcb(l1->dch, PH_DEACTIVATE_IND); + } +} + +static struct FsmNode L1SFnList[] = +{ + {ST_L1_F3, EV_PH_ACTIVATE, l1_activate_s}, + {ST_L1_F6, EV_PH_ACTIVATE, l1_activate_no}, + {ST_L1_F8, EV_PH_ACTIVATE, l1_activate_no}, + {ST_L1_F3, EV_RESET_IND, l1_reset}, + {ST_L1_F4, EV_RESET_IND, l1_reset}, + {ST_L1_F5, EV_RESET_IND, l1_reset}, + {ST_L1_F6, EV_RESET_IND, l1_reset}, + {ST_L1_F7, EV_RESET_IND, l1_reset}, + {ST_L1_F8, EV_RESET_IND, l1_reset}, + {ST_L1_F3, EV_DEACT_CNF, l1_deact_cnf}, + {ST_L1_F4, EV_DEACT_CNF, l1_deact_cnf}, + {ST_L1_F5, EV_DEACT_CNF, l1_deact_cnf}, + {ST_L1_F6, EV_DEACT_CNF, l1_deact_cnf}, + {ST_L1_F7, EV_DEACT_CNF, l1_deact_cnf}, + {ST_L1_F8, EV_DEACT_CNF, l1_deact_cnf}, + {ST_L1_F6, EV_DEACT_IND, l1_deact_req_s}, + {ST_L1_F7, EV_DEACT_IND, l1_deact_req_s}, + {ST_L1_F8, EV_DEACT_IND, l1_deact_req_s}, + {ST_L1_F3, EV_POWER_UP, l1_power_up_s}, + {ST_L1_F4, EV_ANYSIG_IND, l1_go_F5}, + {ST_L1_F6, EV_ANYSIG_IND, l1_go_F8}, + {ST_L1_F7, EV_ANYSIG_IND, l1_go_F8}, + {ST_L1_F3, EV_INFO2_IND, l1_info2_ind}, + {ST_L1_F4, EV_INFO2_IND, l1_info2_ind}, + {ST_L1_F5, EV_INFO2_IND, l1_info2_ind}, + {ST_L1_F7, EV_INFO2_IND, l1_info2_ind}, + {ST_L1_F8, EV_INFO2_IND, l1_info2_ind}, + {ST_L1_F3, EV_INFO4_IND, l1_info4_ind}, + {ST_L1_F4, EV_INFO4_IND, l1_info4_ind}, + {ST_L1_F5, EV_INFO4_IND, l1_info4_ind}, + {ST_L1_F6, EV_INFO4_IND, l1_info4_ind}, + {ST_L1_F8, EV_INFO4_IND, l1_info4_ind}, + {ST_L1_F3, EV_TIMER3, l1_timer3}, + {ST_L1_F4, EV_TIMER3, l1_timer3}, + {ST_L1_F5, EV_TIMER3, l1_timer3}, + {ST_L1_F6, EV_TIMER3, l1_timer3}, + {ST_L1_F8, EV_TIMER3, l1_timer3}, + {ST_L1_F7, EV_TIMER_ACT, l1_timer_act}, + {ST_L1_F3, EV_TIMER_DEACT, l1_timer_deact}, + {ST_L1_F4, EV_TIMER_DEACT, l1_timer_deact}, + {ST_L1_F5, EV_TIMER_DEACT, l1_timer_deact}, + {ST_L1_F6, EV_TIMER_DEACT, l1_timer_deact}, + {ST_L1_F7, EV_TIMER_DEACT, l1_timer_deact}, + {ST_L1_F8, EV_TIMER_DEACT, l1_timer_deact}, +}; + +static void +release_l1(struct layer1 *l1) { + mISDN_FsmDelTimer(&l1->timer, 0); + if (l1->dch) + l1->dch->l1 = NULL; + module_put(THIS_MODULE); + kfree(l1); +} + +int +l1_event(struct layer1 *l1, u_int event) +{ + int err = 0; + + if (!l1) + return -EINVAL; + switch (event) { + case HW_RESET_IND: + mISDN_FsmEvent(&l1->l1m, EV_RESET_IND, NULL); + break; + case HW_DEACT_IND: + mISDN_FsmEvent(&l1->l1m, EV_DEACT_IND, NULL); + break; + case HW_POWERUP_IND: + mISDN_FsmEvent(&l1->l1m, EV_POWER_UP, NULL); + break; + case HW_DEACT_CNF: + mISDN_FsmEvent(&l1->l1m, EV_DEACT_CNF, NULL); + break; + case ANYSIGNAL: + mISDN_FsmEvent(&l1->l1m, EV_ANYSIG_IND, NULL); + break; + case LOSTFRAMING: + mISDN_FsmEvent(&l1->l1m, EV_ANYSIG_IND, NULL); + break; + case INFO2: + mISDN_FsmEvent(&l1->l1m, EV_INFO2_IND, NULL); + break; + case INFO4_P8: + mISDN_FsmEvent(&l1->l1m, EV_INFO4_IND, NULL); + break; + case INFO4_P10: + mISDN_FsmEvent(&l1->l1m, EV_INFO4_IND, NULL); + break; + case PH_ACTIVATE_REQ: + if (test_bit(FLG_L1_ACTIVATED, &l1->Flags)) + l1->dcb(l1->dch, PH_ACTIVATE_IND); + else { + test_and_set_bit(FLG_L1_ACTIVATING, &l1->Flags); + mISDN_FsmEvent(&l1->l1m, EV_PH_ACTIVATE, NULL); + } + break; + case CLOSE_CHANNEL: + release_l1(l1); + break; + default: + if (*debug & DEBUG_L1) + printk(KERN_DEBUG "%s %x unhandled\n", + __func__, event); + err = -EINVAL; + } + return err; +} +EXPORT_SYMBOL(l1_event); + +int +create_l1(struct dchannel *dch, dchannel_l1callback *dcb) { + struct layer1 *nl1; + + nl1 = kzalloc(sizeof(struct layer1), GFP_ATOMIC); + if (!nl1) { + printk(KERN_ERR "kmalloc struct layer1 failed\n"); + return -ENOMEM; + } + nl1->l1m.fsm = &l1fsm_s; + nl1->l1m.state = ST_L1_F3; + nl1->Flags = 0; + nl1->l1m.debug = *debug & DEBUG_L1_FSM; + nl1->l1m.userdata = nl1; + nl1->l1m.userint = 0; + nl1->l1m.printdebug = l1m_debug; + nl1->dch = dch; + nl1->dcb = dcb; + mISDN_FsmInitTimer(&nl1->l1m, &nl1->timer); + __module_get(THIS_MODULE); + dch->l1 = nl1; + return 0; +} +EXPORT_SYMBOL(create_l1); + +int +l1_init(u_int *deb) +{ + debug = deb; + l1fsm_s.state_count = L1S_STATE_COUNT; + l1fsm_s.event_count = L1_EVENT_COUNT; + l1fsm_s.strEvent = strL1Event; + l1fsm_s.strState = strL1SState; + mISDN_FsmNew(&l1fsm_s, L1SFnList, ARRAY_SIZE(L1SFnList)); + return 0; +} + +void +l1_cleanup(void) +{ + mISDN_FsmFree(&l1fsm_s); +} diff --git a/drivers/isdn/mISDN/layer1.h b/drivers/isdn/mISDN/layer1.h new file mode 100644 index 0000000..9c8125f --- /dev/null +++ b/drivers/isdn/mISDN/layer1.h @@ -0,0 +1,26 @@ +/* + * + * Layer 1 defines + * + * Copyright 2008 by Karsten Keil <kkeil@novell.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#define FLG_L1_ACTIVATING 1 +#define FLG_L1_ACTIVATED 2 +#define FLG_L1_DEACTTIMER 3 +#define FLG_L1_ACTTIMER 4 +#define FLG_L1_T3RUN 5 +#define FLG_L1_PULL_REQ 6 +#define FLG_L1_UINT 7 +#define FLG_L1_DBLOCKED 8 + diff --git a/drivers/isdn/mISDN/layer2.c b/drivers/isdn/mISDN/layer2.c new file mode 100644 index 0000000..f5ad888 --- /dev/null +++ b/drivers/isdn/mISDN/layer2.c @@ -0,0 +1,2216 @@ +/* + * + * Author Karsten Keil <kkeil@novell.com> + * + * Copyright 2008 by Karsten Keil <kkeil@novell.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include "fsm.h" +#include "layer2.h" + +static int *debug; + +static +struct Fsm l2fsm = {NULL, 0, 0, NULL, NULL}; + +static char *strL2State[] = +{ + "ST_L2_1", + "ST_L2_2", + "ST_L2_3", + "ST_L2_4", + "ST_L2_5", + "ST_L2_6", + "ST_L2_7", + "ST_L2_8", +}; + +enum { + EV_L2_UI, + EV_L2_SABME, + EV_L2_DISC, + EV_L2_DM, + EV_L2_UA, + EV_L2_FRMR, + EV_L2_SUPER, + EV_L2_I, + EV_L2_DL_DATA, + EV_L2_ACK_PULL, + EV_L2_DL_UNITDATA, + EV_L2_DL_ESTABLISH_REQ, + EV_L2_DL_RELEASE_REQ, + EV_L2_MDL_ASSIGN, + EV_L2_MDL_REMOVE, + EV_L2_MDL_ERROR, + EV_L1_DEACTIVATE, + EV_L2_T200, + EV_L2_T203, + EV_L2_SET_OWN_BUSY, + EV_L2_CLEAR_OWN_BUSY, + EV_L2_FRAME_ERROR, +}; + +#define L2_EVENT_COUNT (EV_L2_FRAME_ERROR+1) + +static char *strL2Event[] = +{ + "EV_L2_UI", + "EV_L2_SABME", + "EV_L2_DISC", + "EV_L2_DM", + "EV_L2_UA", + "EV_L2_FRMR", + "EV_L2_SUPER", + "EV_L2_I", + "EV_L2_DL_DATA", + "EV_L2_ACK_PULL", + "EV_L2_DL_UNITDATA", + "EV_L2_DL_ESTABLISH_REQ", + "EV_L2_DL_RELEASE_REQ", + "EV_L2_MDL_ASSIGN", + "EV_L2_MDL_REMOVE", + "EV_L2_MDL_ERROR", + "EV_L1_DEACTIVATE", + "EV_L2_T200", + "EV_L2_T203", + "EV_L2_SET_OWN_BUSY", + "EV_L2_CLEAR_OWN_BUSY", + "EV_L2_FRAME_ERROR", +}; + +static void +l2m_debug(struct FsmInst *fi, char *fmt, ...) +{ + struct layer2 *l2 = fi->userdata; + va_list va; + + if (!(*debug & DEBUG_L2_FSM)) + return; + va_start(va, fmt); + printk(KERN_DEBUG "l2 (tei %d): ", l2->tei); + vprintk(fmt, va); + printk("\n"); + va_end(va); +} + +inline u_int +l2headersize(struct layer2 *l2, int ui) +{ + return ((test_bit(FLG_MOD128, &l2->flag) && (!ui)) ? 2 : 1) + + (test_bit(FLG_LAPD, &l2->flag) ? 2 : 1); +} + +inline u_int +l2addrsize(struct layer2 *l2) +{ + return test_bit(FLG_LAPD, &l2->flag) ? 2 : 1; +} + +static u_int +l2_newid(struct layer2 *l2) +{ + u_int id; + + id = l2->next_id++; + if (id == 0x7fff) + l2->next_id = 1; + id <<= 16; + id |= l2->tei << 8; + id |= l2->sapi; + return id; +} + +static void +l2up(struct layer2 *l2, u_int prim, struct sk_buff *skb) +{ + int err; + + if (!l2->up) + return; + mISDN_HEAD_PRIM(skb) = prim; + mISDN_HEAD_ID(skb) = (l2->ch.nr << 16) | l2->ch.addr; + err = l2->up->send(l2->up, skb); + if (err) { + printk(KERN_WARNING "%s: err=%d\n", __func__, err); + dev_kfree_skb(skb); + } +} + +static void +l2up_create(struct layer2 *l2, u_int prim, int len, void *arg) +{ + struct sk_buff *skb; + struct mISDNhead *hh; + int err; + + if (!l2->up) + return; + skb = mI_alloc_skb(len, GFP_ATOMIC); + if (!skb) + return; + hh = mISDN_HEAD_P(skb); + hh->prim = prim; + hh->id = (l2->ch.nr << 16) | l2->ch.addr; + if (len) + memcpy(skb_put(skb, len), arg, len); + err = l2->up->send(l2->up, skb); + if (err) { + printk(KERN_WARNING "%s: err=%d\n", __func__, err); + dev_kfree_skb(skb); + } +} + +static int +l2down_skb(struct layer2 *l2, struct sk_buff *skb) { + int ret; + + ret = l2->ch.recv(l2->ch.peer, skb); + if (ret && (*debug & DEBUG_L2_RECV)) + printk(KERN_DEBUG "l2down_skb: ret(%d)\n", ret); + return ret; +} + +static int +l2down_raw(struct layer2 *l2, struct sk_buff *skb) +{ + struct mISDNhead *hh = mISDN_HEAD_P(skb); + + if (hh->prim == PH_DATA_REQ) { + if (test_and_set_bit(FLG_L1_NOTREADY, &l2->flag)) { + skb_queue_tail(&l2->down_queue, skb); + return 0; + } + l2->down_id = mISDN_HEAD_ID(skb); + } + return l2down_skb(l2, skb); +} + +static int +l2down(struct layer2 *l2, u_int prim, u_int id, struct sk_buff *skb) +{ + struct mISDNhead *hh = mISDN_HEAD_P(skb); + + hh->prim = prim; + hh->id = id; + return l2down_raw(l2, skb); +} + +static int +l2down_create(struct layer2 *l2, u_int prim, u_int id, int len, void *arg) +{ + struct sk_buff *skb; + int err; + struct mISDNhead *hh; + + skb = mI_alloc_skb(len, GFP_ATOMIC); + if (!skb) + return -ENOMEM; + hh = mISDN_HEAD_P(skb); + hh->prim = prim; + hh->id = id; + if (len) + memcpy(skb_put(skb, len), arg, len); + err = l2down_raw(l2, skb); + if (err) + dev_kfree_skb(skb); + return err; +} + +static int +ph_data_confirm(struct layer2 *l2, struct mISDNhead *hh, struct sk_buff *skb) { + struct sk_buff *nskb = skb; + int ret = -EAGAIN; + + if (test_bit(FLG_L1_NOTREADY, &l2->flag)) { + if (hh->id == l2->down_id) { + nskb = skb_dequeue(&l2->down_queue); + if (nskb) { + l2->down_id = mISDN_HEAD_ID(nskb); + if (l2down_skb(l2, nskb)) { + dev_kfree_skb(nskb); + l2->down_id = MISDN_ID_NONE; + } + } else + l2->down_id = MISDN_ID_NONE; + if (ret) { + dev_kfree_skb(skb); + ret = 0; + } + if (l2->down_id == MISDN_ID_NONE) { + test_and_clear_bit(FLG_L1_NOTREADY, &l2->flag); + mISDN_FsmEvent(&l2->l2m, EV_L2_ACK_PULL, NULL); + } + } + } + if (!test_and_set_bit(FLG_L1_NOTREADY, &l2->flag)) { + nskb = skb_dequeue(&l2->down_queue); + if (nskb) { + l2->down_id = mISDN_HEAD_ID(nskb); + if (l2down_skb(l2, nskb)) { + dev_kfree_skb(nskb); + l2->down_id = MISDN_ID_NONE; + test_and_clear_bit(FLG_L1_NOTREADY, &l2->flag); + } + } else + test_and_clear_bit(FLG_L1_NOTREADY, &l2->flag); + } + return ret; +} + +static int +l2mgr(struct layer2 *l2, u_int prim, void *arg) { + long c = (long)arg; + + printk(KERN_WARNING + "l2mgr: addr:%x prim %x %c\n", l2->id, prim, (char)c); + if (test_bit(FLG_LAPD, &l2->flag) && + !test_bit(FLG_FIXED_TEI, &l2->flag)) { + switch (c) { + case 'C': + case 'D': + case 'G': + case 'H': + l2_tei(l2, prim, (u_long)arg); + break; + } + } + return 0; +} + +static void +set_peer_busy(struct layer2 *l2) { + test_and_set_bit(FLG_PEER_BUSY, &l2->flag); + if (skb_queue_len(&l2->i_queue) || skb_queue_len(&l2->ui_queue)) + test_and_set_bit(FLG_L2BLOCK, &l2->flag); +} + +static void +clear_peer_busy(struct layer2 *l2) { + if (test_and_clear_bit(FLG_PEER_BUSY, &l2->flag)) + test_and_clear_bit(FLG_L2BLOCK, &l2->flag); +} + +static void +InitWin(struct layer2 *l2) +{ + int i; + + for (i = 0; i < MAX_WINDOW; i++) + l2->windowar[i] = NULL; +} + +static int +freewin(struct layer2 *l2) +{ + int i, cnt = 0; + + for (i = 0; i < MAX_WINDOW; i++) { + if (l2->windowar[i]) { + cnt++; + dev_kfree_skb(l2->windowar[i]); + l2->windowar[i] = NULL; + } + } + return cnt; +} + +static void +ReleaseWin(struct layer2 *l2) +{ + int cnt = freewin(l2); + + if (cnt) + printk(KERN_WARNING + "isdnl2 freed %d skbuffs in release\n", cnt); +} + +inline unsigned int +cansend(struct layer2 *l2) +{ + unsigned int p1; + + if (test_bit(FLG_MOD128, &l2->flag)) + p1 = (l2->vs - l2->va) % 128; + else + p1 = (l2->vs - l2->va) % 8; + return (p1 < l2->window) && !test_bit(FLG_PEER_BUSY, &l2->flag); +} + +inline void +clear_exception(struct layer2 *l2) +{ + test_and_clear_bit(FLG_ACK_PEND, &l2->flag); + test_and_clear_bit(FLG_REJEXC, &l2->flag); + test_and_clear_bit(FLG_OWN_BUSY, &l2->flag); + clear_peer_busy(l2); +} + +static int +sethdraddr(struct layer2 *l2, u_char *header, int rsp) +{ + u_char *ptr = header; + int crbit = rsp; + + if (test_bit(FLG_LAPD, &l2->flag)) { + if (test_bit(FLG_LAPD_NET, &l2->flag)) + crbit = !crbit; + *ptr++ = (l2->sapi << 2) | (crbit ? 2 : 0); + *ptr++ = (l2->tei << 1) | 1; + return 2; + } else { + if (test_bit(FLG_ORIG, &l2->flag)) + crbit = !crbit; + if (crbit) + *ptr++ = l2->addr.B; + else + *ptr++ = l2->addr.A; + return 1; + } +} + +static inline void +enqueue_super(struct layer2 *l2, struct sk_buff *skb) +{ + if (l2down(l2, PH_DATA_REQ, l2_newid(l2), skb)) + dev_kfree_skb(skb); +} + +static inline void +enqueue_ui(struct layer2 *l2, struct sk_buff *skb) +{ + if (l2->tm) + l2_tei(l2, MDL_STATUS_UI_IND, 0); + if (l2down(l2, PH_DATA_REQ, l2_newid(l2), skb)) + dev_kfree_skb(skb); +} + +inline int +IsUI(u_char *data) +{ + return (data[0] & 0xef) == UI; +} + +inline int +IsUA(u_char *data) +{ + return (data[0] & 0xef) == UA; +} + +inline int +IsDM(u_char *data) +{ + return (data[0] & 0xef) == DM; +} + +inline int +IsDISC(u_char *data) +{ + return (data[0] & 0xef) == DISC; +} + +inline int +IsRR(u_char *data, struct layer2 *l2) +{ + if (test_bit(FLG_MOD128, &l2->flag)) + return data[0] == RR; + else + return (data[0] & 0xf) == 1; +} + +inline int +IsSFrame(u_char *data, struct layer2 *l2) +{ + register u_char d = *data; + + if (!test_bit(FLG_MOD128, &l2->flag)) + d &= 0xf; + return ((d & 0xf3) == 1) && ((d & 0x0c) != 0x0c); +} + +inline int +IsSABME(u_char *data, struct layer2 *l2) +{ + u_char d = data[0] & ~0x10; + + return test_bit(FLG_MOD128, &l2->flag) ? d == SABME : d == SABM; +} + +inline int +IsREJ(u_char *data, struct layer2 *l2) +{ + return test_bit(FLG_MOD128, &l2->flag) ? + data[0] == REJ : (data[0] & 0xf) == REJ; +} + +inline int +IsFRMR(u_char *data) +{ + return (data[0] & 0xef) == FRMR; +} + +inline int +IsRNR(u_char *data, struct layer2 *l2) +{ + return test_bit(FLG_MOD128, &l2->flag) ? + data[0] == RNR : (data[0] & 0xf) == RNR; +} + +int +iframe_error(struct layer2 *l2, struct sk_buff *skb) +{ + u_int i; + int rsp = *skb->data & 0x2; + + i = l2addrsize(l2) + (test_bit(FLG_MOD128, &l2->flag) ? 2 : 1); + if (test_bit(FLG_ORIG, &l2->flag)) + rsp = !rsp; + if (rsp) + return 'L'; + if (skb->len < i) + return 'N'; + if ((skb->len - i) > l2->maxlen) + return 'O'; + return 0; +} + +int +super_error(struct layer2 *l2, struct sk_buff *skb) +{ + if (skb->len != l2addrsize(l2) + + (test_bit(FLG_MOD128, &l2->flag) ? 2 : 1)) + return 'N'; + return 0; +} + +int +unnum_error(struct layer2 *l2, struct sk_buff *skb, int wantrsp) +{ + int rsp = (*skb->data & 0x2) >> 1; + if (test_bit(FLG_ORIG, &l2->flag)) + rsp = !rsp; + if (rsp != wantrsp) + return 'L'; + if (skb->len != l2addrsize(l2) + 1) + return 'N'; + return 0; +} + +int +UI_error(struct layer2 *l2, struct sk_buff *skb) +{ + int rsp = *skb->data & 0x2; + if (test_bit(FLG_ORIG, &l2->flag)) + rsp = !rsp; + if (rsp) + return 'L'; + if (skb->len > l2->maxlen + l2addrsize(l2) + 1) + return 'O'; + return 0; +} + +int +FRMR_error(struct layer2 *l2, struct sk_buff *skb) +{ + u_int headers = l2addrsize(l2) + 1; + u_char *datap = skb->data + headers; + int rsp = *skb->data & 0x2; + + if (test_bit(FLG_ORIG, &l2->flag)) + rsp = !rsp; + if (!rsp) + return 'L'; + if (test_bit(FLG_MOD128, &l2->flag)) { + if (skb->len < headers + 5) + return 'N'; + else if (*debug & DEBUG_L2) + l2m_debug(&l2->l2m, + "FRMR information %2x %2x %2x %2x %2x", + datap[0], datap[1], datap[2], datap[3], datap[4]); + } else { + if (skb->len < headers + 3) + return 'N'; + else if (*debug & DEBUG_L2) + l2m_debug(&l2->l2m, + "FRMR information %2x %2x %2x", + datap[0], datap[1], datap[2]); + } + return 0; +} + +static unsigned int +legalnr(struct layer2 *l2, unsigned int nr) +{ + if (test_bit(FLG_MOD128, &l2->flag)) + return ((nr - l2->va) % 128) <= ((l2->vs - l2->va) % 128); + else + return ((nr - l2->va) % 8) <= ((l2->vs - l2->va) % 8); +} + +static void +setva(struct layer2 *l2, unsigned int nr) +{ + struct sk_buff *skb; + + while (l2->va != nr) { + l2->va++; + if (test_bit(FLG_MOD128, &l2->flag)) + l2->va %= 128; + else + l2->va %= 8; + if (l2->windowar[l2->sow]) { + skb_trim(l2->windowar[l2->sow], 0); + skb_queue_tail(&l2->tmp_queue, l2->windowar[l2->sow]); + l2->windowar[l2->sow] = NULL; + } + l2->sow = (l2->sow + 1) % l2->window; + } + skb = skb_dequeue(&l2->tmp_queue); + while (skb) { + dev_kfree_skb(skb); + skb = skb_dequeue(&l2->tmp_queue); + } +} + +static void +send_uframe(struct layer2 *l2, struct sk_buff *skb, u_char cmd, u_char cr) +{ + u_char tmp[MAX_L2HEADER_LEN]; + int i; + + i = sethdraddr(l2, tmp, cr); + tmp[i++] = cmd; + if (skb) + skb_trim(skb, 0); + else { + skb = mI_alloc_skb(i, GFP_ATOMIC); + if (!skb) { + printk(KERN_WARNING "%s: can't alloc skbuff\n", + __func__); + return; + } + } + memcpy(skb_put(skb, i), tmp, i); + enqueue_super(l2, skb); +} + + +inline u_char +get_PollFlag(struct layer2 *l2, struct sk_buff *skb) +{ + return skb->data[l2addrsize(l2)] & 0x10; +} + +inline u_char +get_PollFlagFree(struct layer2 *l2, struct sk_buff *skb) +{ + u_char PF; + + PF = get_PollFlag(l2, skb); + dev_kfree_skb(skb); + return PF; +} + +inline void +start_t200(struct layer2 *l2, int i) +{ + mISDN_FsmAddTimer(&l2->t200, l2->T200, EV_L2_T200, NULL, i); + test_and_set_bit(FLG_T200_RUN, &l2->flag); +} + +inline void +restart_t200(struct layer2 *l2, int i) +{ + mISDN_FsmRestartTimer(&l2->t200, l2->T200, EV_L2_T200, NULL, i); + test_and_set_bit(FLG_T200_RUN, &l2->flag); +} + +inline void +stop_t200(struct layer2 *l2, int i) +{ + if (test_and_clear_bit(FLG_T200_RUN, &l2->flag)) + mISDN_FsmDelTimer(&l2->t200, i); +} + +inline void +st5_dl_release_l2l3(struct layer2 *l2) +{ + int pr; + + if (test_and_clear_bit(FLG_PEND_REL, &l2->flag)) + pr = DL_RELEASE_CNF; + else + pr = DL_RELEASE_IND; + l2up_create(l2, pr, 0, NULL); +} + +inline void +lapb_dl_release_l2l3(struct layer2 *l2, int f) +{ + if (test_bit(FLG_LAPB, &l2->flag)) + l2down_create(l2, PH_DEACTIVATE_REQ, l2_newid(l2), 0, NULL); + l2up_create(l2, f, 0, NULL); +} + +static void +establishlink(struct FsmInst *fi) +{ + struct layer2 *l2 = fi->userdata; + u_char cmd; + + clear_exception(l2); + l2->rc = 0; + cmd = (test_bit(FLG_MOD128, &l2->flag) ? SABME : SABM) | 0x10; + send_uframe(l2, NULL, cmd, CMD); + mISDN_FsmDelTimer(&l2->t203, 1); + restart_t200(l2, 1); + test_and_clear_bit(FLG_PEND_REL, &l2->flag); + freewin(l2); + mISDN_FsmChangeState(fi, ST_L2_5); +} + +static void +l2_mdl_error_ua(struct FsmInst *fi, int event, void *arg) +{ + struct sk_buff *skb = arg; + struct layer2 *l2 = fi->userdata; + + if (get_PollFlagFree(l2, skb)) + l2mgr(l2, MDL_ERROR_IND, (void *) 'C'); + else + l2mgr(l2, MDL_ERROR_IND, (void *) 'D'); + +} + +static void +l2_mdl_error_dm(struct FsmInst *fi, int event, void *arg) +{ + struct sk_buff *skb = arg; + struct layer2 *l2 = fi->userdata; + + if (get_PollFlagFree(l2, skb)) + l2mgr(l2, MDL_ERROR_IND, (void *) 'B'); + else { + l2mgr(l2, MDL_ERROR_IND, (void *) 'E'); + establishlink(fi); + test_and_clear_bit(FLG_L3_INIT, &l2->flag); + } +} + +static void +l2_st8_mdl_error_dm(struct FsmInst *fi, int event, void *arg) +{ + struct sk_buff *skb = arg; + struct layer2 *l2 = fi->userdata; + + if (get_PollFlagFree(l2, skb)) + l2mgr(l2, MDL_ERROR_IND, (void *) 'B'); + else + l2mgr(l2, MDL_ERROR_IND, (void *) 'E'); + establishlink(fi); + test_and_clear_bit(FLG_L3_INIT, &l2->flag); +} + +static void +l2_go_st3(struct FsmInst *fi, int event, void *arg) +{ + dev_kfree_skb((struct sk_buff *)arg); + mISDN_FsmChangeState(fi, ST_L2_3); +} + +static void +l2_mdl_assign(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + + mISDN_FsmChangeState(fi, ST_L2_3); + dev_kfree_skb((struct sk_buff *)arg); + l2_tei(l2, MDL_ASSIGN_IND, 0); +} + +static void +l2_queue_ui_assign(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + struct sk_buff *skb = arg; + + skb_queue_tail(&l2->ui_queue, skb); + mISDN_FsmChangeState(fi, ST_L2_2); + l2_tei(l2, MDL_ASSIGN_IND, 0); +} + +static void +l2_queue_ui(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + struct sk_buff *skb = arg; + + skb_queue_tail(&l2->ui_queue, skb); +} + +static void +tx_ui(struct layer2 *l2) +{ + struct sk_buff *skb; + u_char header[MAX_L2HEADER_LEN]; + int i; + + i = sethdraddr(l2, header, CMD); + if (test_bit(FLG_LAPD_NET, &l2->flag)) + header[1] = 0xff; /* tei 127 */ + header[i++] = UI; + while ((skb = skb_dequeue(&l2->ui_queue))) { + memcpy(skb_push(skb, i), header, i); + enqueue_ui(l2, skb); + } +} + +static void +l2_send_ui(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + struct sk_buff *skb = arg; + + skb_queue_tail(&l2->ui_queue, skb); + tx_ui(l2); +} + +static void +l2_got_ui(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + struct sk_buff *skb = arg; + + skb_pull(skb, l2headersize(l2, 1)); +/* + * in states 1-3 for broadcast + */ + + if (l2->tm) + l2_tei(l2, MDL_STATUS_UI_IND, 0); + l2up(l2, DL_UNITDATA_IND, skb); +} + +static void +l2_establish(struct FsmInst *fi, int event, void *arg) +{ + struct sk_buff *skb = arg; + struct layer2 *l2 = fi->userdata; + + establishlink(fi); + test_and_set_bit(FLG_L3_INIT, &l2->flag); + dev_kfree_skb(skb); +} + +static void +l2_discard_i_setl3(struct FsmInst *fi, int event, void *arg) +{ + struct sk_buff *skb = arg; + struct layer2 *l2 = fi->userdata; + + skb_queue_purge(&l2->i_queue); + test_and_set_bit(FLG_L3_INIT, &l2->flag); + test_and_clear_bit(FLG_PEND_REL, &l2->flag); + dev_kfree_skb(skb); +} + +static void +l2_l3_reestablish(struct FsmInst *fi, int event, void *arg) +{ + struct sk_buff *skb = arg; + struct layer2 *l2 = fi->userdata; + + skb_queue_purge(&l2->i_queue); + establishlink(fi); + test_and_set_bit(FLG_L3_INIT, &l2->flag); + dev_kfree_skb(skb); +} + +static void +l2_release(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + struct sk_buff *skb = arg; + + skb_trim(skb, 0); + l2up(l2, DL_RELEASE_CNF, skb); +} + +static void +l2_pend_rel(struct FsmInst *fi, int event, void *arg) +{ + struct sk_buff *skb = arg; + struct layer2 *l2 = fi->userdata; + + test_and_set_bit(FLG_PEND_REL, &l2->flag); + dev_kfree_skb(skb); +} + +static void +l2_disconnect(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + struct sk_buff *skb = arg; + + skb_queue_purge(&l2->i_queue); + freewin(l2); + mISDN_FsmChangeState(fi, ST_L2_6); + l2->rc = 0; + send_uframe(l2, NULL, DISC | 0x10, CMD); + mISDN_FsmDelTimer(&l2->t203, 1); + restart_t200(l2, 2); + if (skb) + dev_kfree_skb(skb); +} + +static void +l2_start_multi(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + struct sk_buff *skb = arg; + + l2->vs = 0; + l2->va = 0; + l2->vr = 0; + l2->sow = 0; + clear_exception(l2); + send_uframe(l2, NULL, UA | get_PollFlag(l2, skb), RSP); + mISDN_FsmChangeState(fi, ST_L2_7); + mISDN_FsmAddTimer(&l2->t203, l2->T203, EV_L2_T203, NULL, 3); + skb_trim(skb, 0); + l2up(l2, DL_ESTABLISH_IND, skb); + if (l2->tm) + l2_tei(l2, MDL_STATUS_UP_IND, 0); +} + +static void +l2_send_UA(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + struct sk_buff *skb = arg; + + send_uframe(l2, skb, UA | get_PollFlag(l2, skb), RSP); +} + +static void +l2_send_DM(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + struct sk_buff *skb = arg; + + send_uframe(l2, skb, DM | get_PollFlag(l2, skb), RSP); +} + +static void +l2_restart_multi(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + struct sk_buff *skb = arg; + int est = 0; + + send_uframe(l2, skb, UA | get_PollFlag(l2, skb), RSP); + + l2mgr(l2, MDL_ERROR_IND, (void *) 'F'); + + if (l2->vs != l2->va) { + skb_queue_purge(&l2->i_queue); + est = 1; + } + + clear_exception(l2); + l2->vs = 0; + l2->va = 0; + l2->vr = 0; + l2->sow = 0; + mISDN_FsmChangeState(fi, ST_L2_7); + stop_t200(l2, 3); + mISDN_FsmRestartTimer(&l2->t203, l2->T203, EV_L2_T203, NULL, 3); + + if (est) + l2up_create(l2, DL_ESTABLISH_IND, 0, NULL); +/* mISDN_queue_data(&l2->inst, l2->inst.id | MSG_BROADCAST, + * MGR_SHORTSTATUS | INDICATION, SSTATUS_L2_ESTABLISHED, + * 0, NULL, 0); + */ + if (skb_queue_len(&l2->i_queue) && cansend(l2)) + mISDN_FsmEvent(fi, EV_L2_ACK_PULL, NULL); +} + +static void +l2_stop_multi(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + struct sk_buff *skb = arg; + + mISDN_FsmChangeState(fi, ST_L2_4); + mISDN_FsmDelTimer(&l2->t203, 3); + stop_t200(l2, 4); + + send_uframe(l2, skb, UA | get_PollFlag(l2, skb), RSP); + skb_queue_purge(&l2->i_queue); + freewin(l2); + lapb_dl_release_l2l3(l2, DL_RELEASE_IND); + if (l2->tm) + l2_tei(l2, MDL_STATUS_DOWN_IND, 0); +} + +static void +l2_connected(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + struct sk_buff *skb = arg; + int pr = -1; + + if (!get_PollFlag(l2, skb)) { + l2_mdl_error_ua(fi, event, arg); + return; + } + dev_kfree_skb(skb); + if (test_and_clear_bit(FLG_PEND_REL, &l2->flag)) + l2_disconnect(fi, event, NULL); + if (test_and_clear_bit(FLG_L3_INIT, &l2->flag)) { + pr = DL_ESTABLISH_CNF; + } else if (l2->vs != l2->va) { + skb_queue_purge(&l2->i_queue); + pr = DL_ESTABLISH_IND; + } + stop_t200(l2, 5); + l2->vr = 0; + l2->vs = 0; + l2->va = 0; + l2->sow = 0; + mISDN_FsmChangeState(fi, ST_L2_7); + mISDN_FsmAddTimer(&l2->t203, l2->T203, EV_L2_T203, NULL, 4); + if (pr != -1) + l2up_create(l2, pr, 0, NULL); + + if (skb_queue_len(&l2->i_queue) && cansend(l2)) + mISDN_FsmEvent(fi, EV_L2_ACK_PULL, NULL); + + if (l2->tm) + l2_tei(l2, MDL_STATUS_UP_IND, 0); +} + +static void +l2_released(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + struct sk_buff *skb = arg; + + if (!get_PollFlag(l2, skb)) { + l2_mdl_error_ua(fi, event, arg); + return; + } + dev_kfree_skb(skb); + stop_t200(l2, 6); + lapb_dl_release_l2l3(l2, DL_RELEASE_CNF); + mISDN_FsmChangeState(fi, ST_L2_4); + if (l2->tm) + l2_tei(l2, MDL_STATUS_DOWN_IND, 0); +} + +static void +l2_reestablish(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + struct sk_buff *skb = arg; + + if (!get_PollFlagFree(l2, skb)) { + establishlink(fi); + test_and_set_bit(FLG_L3_INIT, &l2->flag); + } +} + +static void +l2_st5_dm_release(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + struct sk_buff *skb = arg; + + if (get_PollFlagFree(l2, skb)) { + stop_t200(l2, 7); + if (!test_bit(FLG_L3_INIT, &l2->flag)) + skb_queue_purge(&l2->i_queue); + if (test_bit(FLG_LAPB, &l2->flag)) + l2down_create(l2, PH_DEACTIVATE_REQ, + l2_newid(l2), 0, NULL); + st5_dl_release_l2l3(l2); + mISDN_FsmChangeState(fi, ST_L2_4); + if (l2->tm) + l2_tei(l2, MDL_STATUS_DOWN_IND, 0); + } +} + +static void +l2_st6_dm_release(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + struct sk_buff *skb = arg; + + if (get_PollFlagFree(l2, skb)) { + stop_t200(l2, 8); + lapb_dl_release_l2l3(l2, DL_RELEASE_CNF); + mISDN_FsmChangeState(fi, ST_L2_4); + if (l2->tm) + l2_tei(l2, MDL_STATUS_DOWN_IND, 0); + } +} + +void +enquiry_cr(struct layer2 *l2, u_char typ, u_char cr, u_char pf) +{ + struct sk_buff *skb; + u_char tmp[MAX_L2HEADER_LEN]; + int i; + + i = sethdraddr(l2, tmp, cr); + if (test_bit(FLG_MOD128, &l2->flag)) { + tmp[i++] = typ; + tmp[i++] = (l2->vr << 1) | (pf ? 1 : 0); + } else + tmp[i++] = (l2->vr << 5) | typ | (pf ? 0x10 : 0); + skb = mI_alloc_skb(i, GFP_ATOMIC); + if (!skb) { + printk(KERN_WARNING + "isdnl2 can't alloc sbbuff for enquiry_cr\n"); + return; + } + memcpy(skb_put(skb, i), tmp, i); + enqueue_super(l2, skb); +} + +inline void +enquiry_response(struct layer2 *l2) +{ + if (test_bit(FLG_OWN_BUSY, &l2->flag)) + enquiry_cr(l2, RNR, RSP, 1); + else + enquiry_cr(l2, RR, RSP, 1); + test_and_clear_bit(FLG_ACK_PEND, &l2->flag); +} + +inline void +transmit_enquiry(struct layer2 *l2) +{ + if (test_bit(FLG_OWN_BUSY, &l2->flag)) + enquiry_cr(l2, RNR, CMD, 1); + else + enquiry_cr(l2, RR, CMD, 1); + test_and_clear_bit(FLG_ACK_PEND, &l2->flag); + start_t200(l2, 9); +} + + +static void +nrerrorrecovery(struct FsmInst *fi) +{ + struct layer2 *l2 = fi->userdata; + + l2mgr(l2, MDL_ERROR_IND, (void *) 'J'); + establishlink(fi); + test_and_clear_bit(FLG_L3_INIT, &l2->flag); +} + +static void +invoke_retransmission(struct layer2 *l2, unsigned int nr) +{ + u_int p1; + + if (l2->vs != nr) { + while (l2->vs != nr) { + (l2->vs)--; + if (test_bit(FLG_MOD128, &l2->flag)) { + l2->vs %= 128; + p1 = (l2->vs - l2->va) % 128; + } else { + l2->vs %= 8; + p1 = (l2->vs - l2->va) % 8; + } + p1 = (p1 + l2->sow) % l2->window; + if (l2->windowar[p1]) + skb_queue_head(&l2->i_queue, l2->windowar[p1]); + else + printk(KERN_WARNING + "%s: windowar[%d] is NULL\n", + __func__, p1); + l2->windowar[p1] = NULL; + } + mISDN_FsmEvent(&l2->l2m, EV_L2_ACK_PULL, NULL); + } +} + +static void +l2_st7_got_super(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + struct sk_buff *skb = arg; + int PollFlag, rsp, typ = RR; + unsigned int nr; + + rsp = *skb->data & 0x2; + if (test_bit(FLG_ORIG, &l2->flag)) + rsp = !rsp; + + skb_pull(skb, l2addrsize(l2)); + if (IsRNR(skb->data, l2)) { + set_peer_busy(l2); + typ = RNR; + } else + clear_peer_busy(l2); + if (IsREJ(skb->data, l2)) + typ = REJ; + + if (test_bit(FLG_MOD128, &l2->flag)) { + PollFlag = (skb->data[1] & 0x1) == 0x1; + nr = skb->data[1] >> 1; + } else { + PollFlag = (skb->data[0] & 0x10); + nr = (skb->data[0] >> 5) & 0x7; + } + dev_kfree_skb(skb); + + if (PollFlag) { + if (rsp) + l2mgr(l2, MDL_ERROR_IND, (void *) 'A'); + else + enquiry_response(l2); + } + if (legalnr(l2, nr)) { + if (typ == REJ) { + setva(l2, nr); + invoke_retransmission(l2, nr); + stop_t200(l2, 10); + if (mISDN_FsmAddTimer(&l2->t203, l2->T203, + EV_L2_T203, NULL, 6)) + l2m_debug(&l2->l2m, "Restart T203 ST7 REJ"); + } else if ((nr == l2->vs) && (typ == RR)) { + setva(l2, nr); + stop_t200(l2, 11); + mISDN_FsmRestartTimer(&l2->t203, l2->T203, + EV_L2_T203, NULL, 7); + } else if ((l2->va != nr) || (typ == RNR)) { + setva(l2, nr); + if (typ != RR) + mISDN_FsmDelTimer(&l2->t203, 9); + restart_t200(l2, 12); + } + if (skb_queue_len(&l2->i_queue) && (typ == RR)) + mISDN_FsmEvent(fi, EV_L2_ACK_PULL, NULL); + } else + nrerrorrecovery(fi); +} + +static void +l2_feed_i_if_reest(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + struct sk_buff *skb = arg; + + if (!test_bit(FLG_L3_INIT, &l2->flag)) + skb_queue_tail(&l2->i_queue, skb); + else + dev_kfree_skb(skb); +} + +static void +l2_feed_i_pull(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + struct sk_buff *skb = arg; + + skb_queue_tail(&l2->i_queue, skb); + mISDN_FsmEvent(fi, EV_L2_ACK_PULL, NULL); +} + +static void +l2_feed_iqueue(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + struct sk_buff *skb = arg; + + skb_queue_tail(&l2->i_queue, skb); +} + +static void +l2_got_iframe(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + struct sk_buff *skb = arg; + int PollFlag, i; + u_int ns, nr; + + i = l2addrsize(l2); + if (test_bit(FLG_MOD128, &l2->flag)) { + PollFlag = ((skb->data[i + 1] & 0x1) == 0x1); + ns = skb->data[i] >> 1; + nr = (skb->data[i + 1] >> 1) & 0x7f; + } else { + PollFlag = (skb->data[i] & 0x10); + ns = (skb->data[i] >> 1) & 0x7; + nr = (skb->data[i] >> 5) & 0x7; + } + if (test_bit(FLG_OWN_BUSY, &l2->flag)) { + dev_kfree_skb(skb); + if (PollFlag) + enquiry_response(l2); + } else { + if (l2->vr == ns) { + l2->vr++; + if (test_bit(FLG_MOD128, &l2->flag)) + l2->vr %= 128; + else + l2->vr %= 8; + test_and_clear_bit(FLG_REJEXC, &l2->flag); + if (PollFlag) + enquiry_response(l2); + else + test_and_set_bit(FLG_ACK_PEND, &l2->flag); + skb_pull(skb, l2headersize(l2, 0)); + l2up(l2, DL_DATA_IND, skb); + } else { + /* n(s)!=v(r) */ + dev_kfree_skb(skb); + if (test_and_set_bit(FLG_REJEXC, &l2->flag)) { + if (PollFlag) + enquiry_response(l2); + } else { + enquiry_cr(l2, REJ, RSP, PollFlag); + test_and_clear_bit(FLG_ACK_PEND, &l2->flag); + } + } + } + if (legalnr(l2, nr)) { + if (!test_bit(FLG_PEER_BUSY, &l2->flag) && + (fi->state == ST_L2_7)) { + if (nr == l2->vs) { + stop_t200(l2, 13); + mISDN_FsmRestartTimer(&l2->t203, l2->T203, + EV_L2_T203, NULL, 7); + } else if (nr != l2->va) + restart_t200(l2, 14); + } + setva(l2, nr); + } else { + nrerrorrecovery(fi); + return; + } + if (skb_queue_len(&l2->i_queue) && (fi->state == ST_L2_7)) + mISDN_FsmEvent(fi, EV_L2_ACK_PULL, NULL); + if (test_and_clear_bit(FLG_ACK_PEND, &l2->flag)) + enquiry_cr(l2, RR, RSP, 0); +} + +static void +l2_got_tei(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + u_int info; + + l2->tei = (signed char)(long)arg; + set_channel_address(&l2->ch, l2->sapi, l2->tei); + info = DL_INFO_L2_CONNECT; + l2up_create(l2, DL_INFORMATION_IND, sizeof(info), &info); + if (fi->state == ST_L2_3) { + establishlink(fi); + test_and_set_bit(FLG_L3_INIT, &l2->flag); + } else + mISDN_FsmChangeState(fi, ST_L2_4); + if (skb_queue_len(&l2->ui_queue)) + tx_ui(l2); +} + +static void +l2_st5_tout_200(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + + if (test_bit(FLG_LAPD, &l2->flag) && + test_bit(FLG_DCHAN_BUSY, &l2->flag)) { + mISDN_FsmAddTimer(&l2->t200, l2->T200, EV_L2_T200, NULL, 9); + } else if (l2->rc == l2->N200) { + mISDN_FsmChangeState(fi, ST_L2_4); + test_and_clear_bit(FLG_T200_RUN, &l2->flag); + skb_queue_purge(&l2->i_queue); + l2mgr(l2, MDL_ERROR_IND, (void *) 'G'); + if (test_bit(FLG_LAPB, &l2->flag)) + l2down_create(l2, PH_DEACTIVATE_REQ, + l2_newid(l2), 0, NULL); + st5_dl_release_l2l3(l2); + if (l2->tm) + l2_tei(l2, MDL_STATUS_DOWN_IND, 0); + } else { + l2->rc++; + mISDN_FsmAddTimer(&l2->t200, l2->T200, EV_L2_T200, NULL, 9); + send_uframe(l2, NULL, (test_bit(FLG_MOD128, &l2->flag) ? + SABME : SABM) | 0x10, CMD); + } +} + +static void +l2_st6_tout_200(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + + if (test_bit(FLG_LAPD, &l2->flag) && + test_bit(FLG_DCHAN_BUSY, &l2->flag)) { + mISDN_FsmAddTimer(&l2->t200, l2->T200, EV_L2_T200, NULL, 9); + } else if (l2->rc == l2->N200) { + mISDN_FsmChangeState(fi, ST_L2_4); + test_and_clear_bit(FLG_T200_RUN, &l2->flag); + l2mgr(l2, MDL_ERROR_IND, (void *) 'H'); + lapb_dl_release_l2l3(l2, DL_RELEASE_CNF); + if (l2->tm) + l2_tei(l2, MDL_STATUS_DOWN_IND, 0); + } else { + l2->rc++; + mISDN_FsmAddTimer(&l2->t200, l2->T200, EV_L2_T200, + NULL, 9); + send_uframe(l2, NULL, DISC | 0x10, CMD); + } +} + +static void +l2_st7_tout_200(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + + if (test_bit(FLG_LAPD, &l2->flag) && + test_bit(FLG_DCHAN_BUSY, &l2->flag)) { + mISDN_FsmAddTimer(&l2->t200, l2->T200, EV_L2_T200, NULL, 9); + return; + } + test_and_clear_bit(FLG_T200_RUN, &l2->flag); + l2->rc = 0; + mISDN_FsmChangeState(fi, ST_L2_8); + transmit_enquiry(l2); + l2->rc++; +} + +static void +l2_st8_tout_200(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + + if (test_bit(FLG_LAPD, &l2->flag) && + test_bit(FLG_DCHAN_BUSY, &l2->flag)) { + mISDN_FsmAddTimer(&l2->t200, l2->T200, EV_L2_T200, NULL, 9); + return; + } + test_and_clear_bit(FLG_T200_RUN, &l2->flag); + if (l2->rc == l2->N200) { + l2mgr(l2, MDL_ERROR_IND, (void *) 'I'); + establishlink(fi); + test_and_clear_bit(FLG_L3_INIT, &l2->flag); + } else { + transmit_enquiry(l2); + l2->rc++; + } +} + +static void +l2_st7_tout_203(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + + if (test_bit(FLG_LAPD, &l2->flag) && + test_bit(FLG_DCHAN_BUSY, &l2->flag)) { + mISDN_FsmAddTimer(&l2->t203, l2->T203, EV_L2_T203, NULL, 9); + return; + } + mISDN_FsmChangeState(fi, ST_L2_8); + transmit_enquiry(l2); + l2->rc = 0; +} + +static void +l2_pull_iqueue(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + struct sk_buff *skb, *nskb, *oskb; + u_char header[MAX_L2HEADER_LEN]; + u_int i, p1; + + if (!cansend(l2)) + return; + + skb = skb_dequeue(&l2->i_queue); + if (!skb) + return; + + if (test_bit(FLG_MOD128, &l2->flag)) + p1 = (l2->vs - l2->va) % 128; + else + p1 = (l2->vs - l2->va) % 8; + p1 = (p1 + l2->sow) % l2->window; + if (l2->windowar[p1]) { + printk(KERN_WARNING "isdnl2 try overwrite ack queue entry %d\n", + p1); + dev_kfree_skb(l2->windowar[p1]); + } + l2->windowar[p1] = skb; + i = sethdraddr(l2, header, CMD); + if (test_bit(FLG_MOD128, &l2->flag)) { + header[i++] = l2->vs << 1; + header[i++] = l2->vr << 1; + l2->vs = (l2->vs + 1) % 128; + } else { + header[i++] = (l2->vr << 5) | (l2->vs << 1); + l2->vs = (l2->vs + 1) % 8; + } + + nskb = skb_clone(skb, GFP_ATOMIC); + p1 = skb_headroom(nskb); + if (p1 >= i) + memcpy(skb_push(nskb, i), header, i); + else { + printk(KERN_WARNING + "isdnl2 pull_iqueue skb header(%d/%d) too short\n", i, p1); + oskb = nskb; + nskb = mI_alloc_skb(oskb->len + i, GFP_ATOMIC); + if (!nskb) { + dev_kfree_skb(oskb); + printk(KERN_WARNING "%s: no skb mem\n", __func__); + return; + } + memcpy(skb_put(nskb, i), header, i); + memcpy(skb_put(nskb, oskb->len), oskb->data, oskb->len); + dev_kfree_skb(oskb); + } + l2down(l2, PH_DATA_REQ, l2_newid(l2), nskb); + test_and_clear_bit(FLG_ACK_PEND, &l2->flag); + if (!test_and_set_bit(FLG_T200_RUN, &l2->flag)) { + mISDN_FsmDelTimer(&l2->t203, 13); + mISDN_FsmAddTimer(&l2->t200, l2->T200, EV_L2_T200, NULL, 11); + } +} + +static void +l2_st8_got_super(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + struct sk_buff *skb = arg; + int PollFlag, rsp, rnr = 0; + unsigned int nr; + + rsp = *skb->data & 0x2; + if (test_bit(FLG_ORIG, &l2->flag)) + rsp = !rsp; + + skb_pull(skb, l2addrsize(l2)); + + if (IsRNR(skb->data, l2)) { + set_peer_busy(l2); + rnr = 1; + } else + clear_peer_busy(l2); + + if (test_bit(FLG_MOD128, &l2->flag)) { + PollFlag = (skb->data[1] & 0x1) == 0x1; + nr = skb->data[1] >> 1; + } else { + PollFlag = (skb->data[0] & 0x10); + nr = (skb->data[0] >> 5) & 0x7; + } + dev_kfree_skb(skb); + if (rsp && PollFlag) { + if (legalnr(l2, nr)) { + if (rnr) { + restart_t200(l2, 15); + } else { + stop_t200(l2, 16); + mISDN_FsmAddTimer(&l2->t203, l2->T203, + EV_L2_T203, NULL, 5); + setva(l2, nr); + } + invoke_retransmission(l2, nr); + mISDN_FsmChangeState(fi, ST_L2_7); + if (skb_queue_len(&l2->i_queue) && cansend(l2)) + mISDN_FsmEvent(fi, EV_L2_ACK_PULL, NULL); + } else + nrerrorrecovery(fi); + } else { + if (!rsp && PollFlag) + enquiry_response(l2); + if (legalnr(l2, nr)) + setva(l2, nr); + else + nrerrorrecovery(fi); + } +} + +static void +l2_got_FRMR(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + struct sk_buff *skb = arg; + + skb_pull(skb, l2addrsize(l2) + 1); + + if (!(skb->data[0] & 1) || ((skb->data[0] & 3) == 1) || /* I or S */ + (IsUA(skb->data) && (fi->state == ST_L2_7))) { + l2mgr(l2, MDL_ERROR_IND, (void *) 'K'); + establishlink(fi); + test_and_clear_bit(FLG_L3_INIT, &l2->flag); + } + dev_kfree_skb(skb); +} + +static void +l2_st24_tei_remove(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + + skb_queue_purge(&l2->ui_queue); + l2->tei = GROUP_TEI; + mISDN_FsmChangeState(fi, ST_L2_1); +} + +static void +l2_st3_tei_remove(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + + skb_queue_purge(&l2->ui_queue); + l2->tei = GROUP_TEI; + l2up_create(l2, DL_RELEASE_IND, 0, NULL); + mISDN_FsmChangeState(fi, ST_L2_1); +} + +static void +l2_st5_tei_remove(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + + skb_queue_purge(&l2->i_queue); + skb_queue_purge(&l2->ui_queue); + freewin(l2); + l2->tei = GROUP_TEI; + stop_t200(l2, 17); + st5_dl_release_l2l3(l2); + mISDN_FsmChangeState(fi, ST_L2_1); +} + +static void +l2_st6_tei_remove(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + + skb_queue_purge(&l2->ui_queue); + l2->tei = GROUP_TEI; + stop_t200(l2, 18); + l2up_create(l2, DL_RELEASE_IND, 0, NULL); + mISDN_FsmChangeState(fi, ST_L2_1); +} + +static void +l2_tei_remove(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + + skb_queue_purge(&l2->i_queue); + skb_queue_purge(&l2->ui_queue); + freewin(l2); + l2->tei = GROUP_TEI; + stop_t200(l2, 17); + mISDN_FsmDelTimer(&l2->t203, 19); + l2up_create(l2, DL_RELEASE_IND, 0, NULL); +/* mISDN_queue_data(&l2->inst, l2->inst.id | MSG_BROADCAST, + * MGR_SHORTSTATUS_IND, SSTATUS_L2_RELEASED, + * 0, NULL, 0); + */ + mISDN_FsmChangeState(fi, ST_L2_1); +} + +static void +l2_st14_persistant_da(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + struct sk_buff *skb = arg; + + skb_queue_purge(&l2->i_queue); + skb_queue_purge(&l2->ui_queue); + if (test_and_clear_bit(FLG_ESTAB_PEND, &l2->flag)) + l2up(l2, DL_RELEASE_IND, skb); + else + dev_kfree_skb(skb); +} + +static void +l2_st5_persistant_da(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + struct sk_buff *skb = arg; + + skb_queue_purge(&l2->i_queue); + skb_queue_purge(&l2->ui_queue); + freewin(l2); + stop_t200(l2, 19); + st5_dl_release_l2l3(l2); + mISDN_FsmChangeState(fi, ST_L2_4); + if (l2->tm) + l2_tei(l2, MDL_STATUS_DOWN_IND, 0); + dev_kfree_skb(skb); +} + +static void +l2_st6_persistant_da(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + struct sk_buff *skb = arg; + + skb_queue_purge(&l2->ui_queue); + stop_t200(l2, 20); + l2up(l2, DL_RELEASE_CNF, skb); + mISDN_FsmChangeState(fi, ST_L2_4); + if (l2->tm) + l2_tei(l2, MDL_STATUS_DOWN_IND, 0); +} + +static void +l2_persistant_da(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + struct sk_buff *skb = arg; + + skb_queue_purge(&l2->i_queue); + skb_queue_purge(&l2->ui_queue); + freewin(l2); + stop_t200(l2, 19); + mISDN_FsmDelTimer(&l2->t203, 19); + l2up(l2, DL_RELEASE_IND, skb); + mISDN_FsmChangeState(fi, ST_L2_4); + if (l2->tm) + l2_tei(l2, MDL_STATUS_DOWN_IND, 0); +} + +static void +l2_set_own_busy(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + struct sk_buff *skb = arg; + + if (!test_and_set_bit(FLG_OWN_BUSY, &l2->flag)) { + enquiry_cr(l2, RNR, RSP, 0); + test_and_clear_bit(FLG_ACK_PEND, &l2->flag); + } + if (skb) + dev_kfree_skb(skb); +} + +static void +l2_clear_own_busy(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + struct sk_buff *skb = arg; + + if (!test_and_clear_bit(FLG_OWN_BUSY, &l2->flag)) { + enquiry_cr(l2, RR, RSP, 0); + test_and_clear_bit(FLG_ACK_PEND, &l2->flag); + } + if (skb) + dev_kfree_skb(skb); +} + +static void +l2_frame_error(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + + l2mgr(l2, MDL_ERROR_IND, arg); +} + +static void +l2_frame_error_reest(struct FsmInst *fi, int event, void *arg) +{ + struct layer2 *l2 = fi->userdata; + + l2mgr(l2, MDL_ERROR_IND, arg); + establishlink(fi); + test_and_clear_bit(FLG_L3_INIT, &l2->flag); +} + +static struct FsmNode L2FnList[] = +{ + {ST_L2_1, EV_L2_DL_ESTABLISH_REQ, l2_mdl_assign}, + {ST_L2_2, EV_L2_DL_ESTABLISH_REQ, l2_go_st3}, + {ST_L2_4, EV_L2_DL_ESTABLISH_REQ, l2_establish}, + {ST_L2_5, EV_L2_DL_ESTABLISH_REQ, l2_discard_i_setl3}, + {ST_L2_7, EV_L2_DL_ESTABLISH_REQ, l2_l3_reestablish}, + {ST_L2_8, EV_L2_DL_ESTABLISH_REQ, l2_l3_reestablish}, + {ST_L2_4, EV_L2_DL_RELEASE_REQ, l2_release}, + {ST_L2_5, EV_L2_DL_RELEASE_REQ, l2_pend_rel}, + {ST_L2_7, EV_L2_DL_RELEASE_REQ, l2_disconnect}, + {ST_L2_8, EV_L2_DL_RELEASE_REQ, l2_disconnect}, + {ST_L2_5, EV_L2_DL_DATA, l2_feed_i_if_reest}, + {ST_L2_7, EV_L2_DL_DATA, l2_feed_i_pull}, + {ST_L2_8, EV_L2_DL_DATA, l2_feed_iqueue}, + {ST_L2_1, EV_L2_DL_UNITDATA, l2_queue_ui_assign}, + {ST_L2_2, EV_L2_DL_UNITDATA, l2_queue_ui}, + {ST_L2_3, EV_L2_DL_UNITDATA, l2_queue_ui}, + {ST_L2_4, EV_L2_DL_UNITDATA, l2_send_ui}, + {ST_L2_5, EV_L2_DL_UNITDATA, l2_send_ui}, + {ST_L2_6, EV_L2_DL_UNITDATA, l2_send_ui}, + {ST_L2_7, EV_L2_DL_UNITDATA, l2_send_ui}, + {ST_L2_8, EV_L2_DL_UNITDATA, l2_send_ui}, + {ST_L2_1, EV_L2_MDL_ASSIGN, l2_got_tei}, + {ST_L2_2, EV_L2_MDL_ASSIGN, l2_got_tei}, + {ST_L2_3, EV_L2_MDL_ASSIGN, l2_got_tei}, + {ST_L2_2, EV_L2_MDL_ERROR, l2_st24_tei_remove}, + {ST_L2_3, EV_L2_MDL_ERROR, l2_st3_tei_remove}, + {ST_L2_4, EV_L2_MDL_REMOVE, l2_st24_tei_remove}, + {ST_L2_5, EV_L2_MDL_REMOVE, l2_st5_tei_remove}, + {ST_L2_6, EV_L2_MDL_REMOVE, l2_st6_tei_remove}, + {ST_L2_7, EV_L2_MDL_REMOVE, l2_tei_remove}, + {ST_L2_8, EV_L2_MDL_REMOVE, l2_tei_remove}, + {ST_L2_4, EV_L2_SABME, l2_start_multi}, + {ST_L2_5, EV_L2_SABME, l2_send_UA}, + {ST_L2_6, EV_L2_SABME, l2_send_DM}, + {ST_L2_7, EV_L2_SABME, l2_restart_multi}, + {ST_L2_8, EV_L2_SABME, l2_restart_multi}, + {ST_L2_4, EV_L2_DISC, l2_send_DM}, + {ST_L2_5, EV_L2_DISC, l2_send_DM}, + {ST_L2_6, EV_L2_DISC, l2_send_UA}, + {ST_L2_7, EV_L2_DISC, l2_stop_multi}, + {ST_L2_8, EV_L2_DISC, l2_stop_multi}, + {ST_L2_4, EV_L2_UA, l2_mdl_error_ua}, + {ST_L2_5, EV_L2_UA, l2_connected}, + {ST_L2_6, EV_L2_UA, l2_released}, + {ST_L2_7, EV_L2_UA, l2_mdl_error_ua}, + {ST_L2_8, EV_L2_UA, l2_mdl_error_ua}, + {ST_L2_4, EV_L2_DM, l2_reestablish}, + {ST_L2_5, EV_L2_DM, l2_st5_dm_release}, + {ST_L2_6, EV_L2_DM, l2_st6_dm_release}, + {ST_L2_7, EV_L2_DM, l2_mdl_error_dm}, + {ST_L2_8, EV_L2_DM, l2_st8_mdl_error_dm}, + {ST_L2_1, EV_L2_UI, l2_got_ui}, + {ST_L2_2, EV_L2_UI, l2_got_ui}, + {ST_L2_3, EV_L2_UI, l2_got_ui}, + {ST_L2_4, EV_L2_UI, l2_got_ui}, + {ST_L2_5, EV_L2_UI, l2_got_ui}, + {ST_L2_6, EV_L2_UI, l2_got_ui}, + {ST_L2_7, EV_L2_UI, l2_got_ui}, + {ST_L2_8, EV_L2_UI, l2_got_ui}, + {ST_L2_7, EV_L2_FRMR, l2_got_FRMR}, + {ST_L2_8, EV_L2_FRMR, l2_got_FRMR}, + {ST_L2_7, EV_L2_SUPER, l2_st7_got_super}, + {ST_L2_8, EV_L2_SUPER, l2_st8_got_super}, + {ST_L2_7, EV_L2_I, l2_got_iframe}, + {ST_L2_8, EV_L2_I, l2_got_iframe}, + {ST_L2_5, EV_L2_T200, l2_st5_tout_200}, + {ST_L2_6, EV_L2_T200, l2_st6_tout_200}, + {ST_L2_7, EV_L2_T200, l2_st7_tout_200}, + {ST_L2_8, EV_L2_T200, l2_st8_tout_200}, + {ST_L2_7, EV_L2_T203, l2_st7_tout_203}, + {ST_L2_7, EV_L2_ACK_PULL, l2_pull_iqueue}, + {ST_L2_7, EV_L2_SET_OWN_BUSY, l2_set_own_busy}, + {ST_L2_8, EV_L2_SET_OWN_BUSY, l2_set_own_busy}, + {ST_L2_7, EV_L2_CLEAR_OWN_BUSY, l2_clear_own_busy}, + {ST_L2_8, EV_L2_CLEAR_OWN_BUSY, l2_clear_own_busy}, + {ST_L2_4, EV_L2_FRAME_ERROR, l2_frame_error}, + {ST_L2_5, EV_L2_FRAME_ERROR, l2_frame_error}, + {ST_L2_6, EV_L2_FRAME_ERROR, l2_frame_error}, + {ST_L2_7, EV_L2_FRAME_ERROR, l2_frame_error_reest}, + {ST_L2_8, EV_L2_FRAME_ERROR, l2_frame_error_reest}, + {ST_L2_1, EV_L1_DEACTIVATE, l2_st14_persistant_da}, + {ST_L2_2, EV_L1_DEACTIVATE, l2_st24_tei_remove}, + {ST_L2_3, EV_L1_DEACTIVATE, l2_st3_tei_remove}, + {ST_L2_4, EV_L1_DEACTIVATE, l2_st14_persistant_da}, + {ST_L2_5, EV_L1_DEACTIVATE, l2_st5_persistant_da}, + {ST_L2_6, EV_L1_DEACTIVATE, l2_st6_persistant_da}, + {ST_L2_7, EV_L1_DEACTIVATE, l2_persistant_da}, + {ST_L2_8, EV_L1_DEACTIVATE, l2_persistant_da}, +}; + +#define L2_FN_COUNT (sizeof(L2FnList)/sizeof(struct FsmNode)) + +static int +ph_data_indication(struct layer2 *l2, struct mISDNhead *hh, struct sk_buff *skb) +{ + u_char *datap = skb->data; + int ret = -EINVAL; + int psapi, ptei; + u_int l; + int c = 0; + + l = l2addrsize(l2); + if (skb->len <= l) { + mISDN_FsmEvent(&l2->l2m, EV_L2_FRAME_ERROR, (void *) 'N'); + return ret; + } + if (test_bit(FLG_LAPD, &l2->flag)) { /* Maybe not needed */ + psapi = *datap++; + ptei = *datap++; + if ((psapi & 1) || !(ptei & 1)) { + printk(KERN_WARNING + "l2 D-channel frame wrong EA0/EA1\n"); + return ret; + } + psapi >>= 2; + ptei >>= 1; + if (psapi != l2->sapi) { + /* not our bussiness + * printk(KERN_DEBUG "%s: sapi %d/%d sapi mismatch\n", + * __func__, + * psapi, l2->sapi); + */ + dev_kfree_skb(skb); + return 0; + } + if ((ptei != l2->tei) && (ptei != GROUP_TEI)) { + /* not our bussiness + * printk(KERN_DEBUG "%s: tei %d/%d sapi %d mismatch\n", + * __func__, + * ptei, l2->tei, psapi); + */ + dev_kfree_skb(skb); + return 0; + } + } else + datap += l; + if (!(*datap & 1)) { /* I-Frame */ + c = iframe_error(l2, skb); + if (!c) + ret = mISDN_FsmEvent(&l2->l2m, EV_L2_I, skb); + } else if (IsSFrame(datap, l2)) { /* S-Frame */ + c = super_error(l2, skb); + if (!c) + ret = mISDN_FsmEvent(&l2->l2m, EV_L2_SUPER, skb); + } else if (IsUI(datap)) { + c = UI_error(l2, skb); + if (!c) + ret = mISDN_FsmEvent(&l2->l2m, EV_L2_UI, skb); + } else if (IsSABME(datap, l2)) { + c = unnum_error(l2, skb, CMD); + if (!c) + ret = mISDN_FsmEvent(&l2->l2m, EV_L2_SABME, skb); + } else if (IsUA(datap)) { + c = unnum_error(l2, skb, RSP); + if (!c) + ret = mISDN_FsmEvent(&l2->l2m, EV_L2_UA, skb); + } else if (IsDISC(datap)) { + c = unnum_error(l2, skb, CMD); + if (!c) + ret = mISDN_FsmEvent(&l2->l2m, EV_L2_DISC, skb); + } else if (IsDM(datap)) { + c = unnum_error(l2, skb, RSP); + if (!c) + ret = mISDN_FsmEvent(&l2->l2m, EV_L2_DM, skb); + } else if (IsFRMR(datap)) { + c = FRMR_error(l2, skb); + if (!c) + ret = mISDN_FsmEvent(&l2->l2m, EV_L2_FRMR, skb); + } else + c = 'L'; + if (c) { + printk(KERN_WARNING "l2 D-channel frame error %c\n", c); + mISDN_FsmEvent(&l2->l2m, EV_L2_FRAME_ERROR, (void *)(long)c); + } + return ret; +} + +static int +l2_send(struct mISDNchannel *ch, struct sk_buff *skb) +{ + struct layer2 *l2 = container_of(ch, struct layer2, ch); + struct mISDNhead *hh = mISDN_HEAD_P(skb); + int ret = -EINVAL; + + if (*debug & DEBUG_L2_RECV) + printk(KERN_DEBUG "%s: prim(%x) id(%x) tei(%d)\n", + __func__, hh->prim, hh->id, l2->tei); + switch (hh->prim) { + case PH_DATA_IND: + ret = ph_data_indication(l2, hh, skb); + break; + case PH_DATA_CNF: + ret = ph_data_confirm(l2, hh, skb); + break; + case PH_ACTIVATE_IND: + test_and_set_bit(FLG_L1_ACTIV, &l2->flag); + l2up_create(l2, MPH_ACTIVATE_IND, 0, NULL); + if (test_and_clear_bit(FLG_ESTAB_PEND, &l2->flag)) + ret = mISDN_FsmEvent(&l2->l2m, + EV_L2_DL_ESTABLISH_REQ, skb); + break; + case PH_DEACTIVATE_IND: + test_and_clear_bit(FLG_L1_ACTIV, &l2->flag); + l2up_create(l2, MPH_DEACTIVATE_IND, 0, NULL); + ret = mISDN_FsmEvent(&l2->l2m, EV_L1_DEACTIVATE, skb); + break; + case MPH_INFORMATION_IND: + if (!l2->up) + break; + ret = l2->up->send(l2->up, skb); + break; + case DL_DATA_REQ: + ret = mISDN_FsmEvent(&l2->l2m, EV_L2_DL_DATA, skb); + break; + case DL_UNITDATA_REQ: + ret = mISDN_FsmEvent(&l2->l2m, EV_L2_DL_UNITDATA, skb); + break; + case DL_ESTABLISH_REQ: + if (test_bit(FLG_LAPB, &l2->flag)) + test_and_set_bit(FLG_ORIG, &l2->flag); + if (test_bit(FLG_L1_ACTIV, &l2->flag)) { + if (test_bit(FLG_LAPD, &l2->flag) || + test_bit(FLG_ORIG, &l2->flag)) + ret = mISDN_FsmEvent(&l2->l2m, + EV_L2_DL_ESTABLISH_REQ, skb); + } else { + if (test_bit(FLG_LAPD, &l2->flag) || + test_bit(FLG_ORIG, &l2->flag)) { + test_and_set_bit(FLG_ESTAB_PEND, + &l2->flag); + } + ret = l2down(l2, PH_ACTIVATE_REQ, l2_newid(l2), + skb); + } + break; + case DL_RELEASE_REQ: + if (test_bit(FLG_LAPB, &l2->flag)) + l2down_create(l2, PH_DEACTIVATE_REQ, + l2_newid(l2), 0, NULL); + ret = mISDN_FsmEvent(&l2->l2m, EV_L2_DL_RELEASE_REQ, + skb); + break; + default: + if (*debug & DEBUG_L2) + l2m_debug(&l2->l2m, "l2 unknown pr %04x", + hh->prim); + } + if (ret) { + dev_kfree_skb(skb); + ret = 0; + } + return ret; +} + +int +tei_l2(struct layer2 *l2, u_int cmd, u_long arg) +{ + int ret = -EINVAL; + + if (*debug & DEBUG_L2_TEI) + printk(KERN_DEBUG "%s: cmd(%x)\n", __func__, cmd); + switch (cmd) { + case (MDL_ASSIGN_REQ): + ret = mISDN_FsmEvent(&l2->l2m, EV_L2_MDL_ASSIGN, (void *)arg); + break; + case (MDL_REMOVE_REQ): + ret = mISDN_FsmEvent(&l2->l2m, EV_L2_MDL_REMOVE, NULL); + break; + case (MDL_ERROR_IND): + ret = mISDN_FsmEvent(&l2->l2m, EV_L2_MDL_ERROR, NULL); + break; + case (MDL_ERROR_RSP): + /* ETS 300-125 5.3.2.1 Test: TC13010 */ + printk(KERN_NOTICE "MDL_ERROR|REQ (tei_l2)\n"); + ret = mISDN_FsmEvent(&l2->l2m, EV_L2_MDL_ERROR, NULL); + break; + } + return ret; +} + +static void +release_l2(struct layer2 *l2) +{ + mISDN_FsmDelTimer(&l2->t200, 21); + mISDN_FsmDelTimer(&l2->t203, 16); + skb_queue_purge(&l2->i_queue); + skb_queue_purge(&l2->ui_queue); + skb_queue_purge(&l2->down_queue); + ReleaseWin(l2); + if (test_bit(FLG_LAPD, &l2->flag)) { + release_tei(l2); + if (l2->ch.st) + l2->ch.st->dev->D.ctrl(&l2->ch.st->dev->D, + CLOSE_CHANNEL, NULL); + } + kfree(l2); +} + +static int +l2_ctrl(struct mISDNchannel *ch, u_int cmd, void *arg) +{ + struct layer2 *l2 = container_of(ch, struct layer2, ch); + u_int info; + + if (*debug & DEBUG_L2_CTRL) + printk(KERN_DEBUG "%s:(%x)\n", __func__, cmd); + + switch (cmd) { + case OPEN_CHANNEL: + if (test_bit(FLG_LAPD, &l2->flag)) { + set_channel_address(&l2->ch, l2->sapi, l2->tei); + info = DL_INFO_L2_CONNECT; + l2up_create(l2, DL_INFORMATION_IND, + sizeof(info), &info); + } + break; + case CLOSE_CHANNEL: + if (l2->ch.peer) + l2->ch.peer->ctrl(l2->ch.peer, CLOSE_CHANNEL, NULL); + release_l2(l2); + break; + } + return 0; +} + +struct layer2 * +create_l2(struct mISDNchannel *ch, u_int protocol, u_long options, u_long arg) +{ + struct layer2 *l2; + struct channel_req rq; + + l2 = kzalloc(sizeof(struct layer2), GFP_KERNEL); + if (!l2) { + printk(KERN_ERR "kzalloc layer2 failed\n"); + return NULL; + } + l2->next_id = 1; + l2->down_id = MISDN_ID_NONE; + l2->up = ch; + l2->ch.st = ch->st; + l2->ch.send = l2_send; + l2->ch.ctrl = l2_ctrl; + switch (protocol) { + case ISDN_P_LAPD_NT: + test_and_set_bit(FLG_LAPD, &l2->flag); + test_and_set_bit(FLG_LAPD_NET, &l2->flag); + test_and_set_bit(FLG_MOD128, &l2->flag); + l2->sapi = 0; + l2->maxlen = MAX_DFRAME_LEN; + if (test_bit(OPTION_L2_PMX, &options)) + l2->window = 7; + else + l2->window = 1; + if (test_bit(OPTION_L2_PTP, &options)) + test_and_set_bit(FLG_PTP, &l2->flag); + if (test_bit(OPTION_L2_FIXEDTEI, &options)) + test_and_set_bit(FLG_FIXED_TEI, &l2->flag); + l2->tei = (u_int)arg; + l2->T200 = 1000; + l2->N200 = 3; + l2->T203 = 10000; + if (test_bit(OPTION_L2_PMX, &options)) + rq.protocol = ISDN_P_NT_E1; + else + rq.protocol = ISDN_P_NT_S0; + rq.adr.channel = 0; + l2->ch.st->dev->D.ctrl(&l2->ch.st->dev->D, OPEN_CHANNEL, &rq); + break; + case ISDN_P_LAPD_TE: + test_and_set_bit(FLG_LAPD, &l2->flag); + test_and_set_bit(FLG_MOD128, &l2->flag); + test_and_set_bit(FLG_ORIG, &l2->flag); + l2->sapi = 0; + l2->maxlen = MAX_DFRAME_LEN; + if (test_bit(OPTION_L2_PMX, &options)) + l2->window = 7; + else + l2->window = 1; + if (test_bit(OPTION_L2_PTP, &options)) + test_and_set_bit(FLG_PTP, &l2->flag); + if (test_bit(OPTION_L2_FIXEDTEI, &options)) + test_and_set_bit(FLG_FIXED_TEI, &l2->flag); + l2->tei = (u_int)arg; + l2->T200 = 1000; + l2->N200 = 3; + l2->T203 = 10000; + if (test_bit(OPTION_L2_PMX, &options)) + rq.protocol = ISDN_P_TE_E1; + else + rq.protocol = ISDN_P_TE_S0; + rq.adr.channel = 0; + l2->ch.st->dev->D.ctrl(&l2->ch.st->dev->D, OPEN_CHANNEL, &rq); + break; + case ISDN_P_B_X75SLP: + test_and_set_bit(FLG_LAPB, &l2->flag); + l2->window = 7; + l2->maxlen = MAX_DATA_SIZE; + l2->T200 = 1000; + l2->N200 = 4; + l2->T203 = 5000; + l2->addr.A = 3; + l2->addr.B = 1; + break; + default: + printk(KERN_ERR "layer2 create failed prt %x\n", + protocol); + kfree(l2); + return NULL; + } + skb_queue_head_init(&l2->i_queue); + skb_queue_head_init(&l2->ui_queue); + skb_queue_head_init(&l2->down_queue); + skb_queue_head_init(&l2->tmp_queue); + InitWin(l2); + l2->l2m.fsm = &l2fsm; + if (test_bit(FLG_LAPB, &l2->flag) || + test_bit(FLG_PTP, &l2->flag) || + test_bit(FLG_LAPD_NET, &l2->flag)) + l2->l2m.state = ST_L2_4; + else + l2->l2m.state = ST_L2_1; + l2->l2m.debug = *debug; + l2->l2m.userdata = l2; + l2->l2m.userint = 0; + l2->l2m.printdebug = l2m_debug; + + mISDN_FsmInitTimer(&l2->l2m, &l2->t200); + mISDN_FsmInitTimer(&l2->l2m, &l2->t203); + return l2; +} + +static int +x75create(struct channel_req *crq) +{ + struct layer2 *l2; + + if (crq->protocol != ISDN_P_B_X75SLP) + return -EPROTONOSUPPORT; + l2 = create_l2(crq->ch, crq->protocol, 0, 0); + if (!l2) + return -ENOMEM; + crq->ch = &l2->ch; + crq->protocol = ISDN_P_B_HDLC; + return 0; +} + +static struct Bprotocol X75SLP = { + .Bprotocols = (1 << (ISDN_P_B_X75SLP & ISDN_P_B_MASK)), + .name = "X75SLP", + .create = x75create +}; + +int +Isdnl2_Init(u_int *deb) +{ + debug = deb; + mISDN_register_Bprotocol(&X75SLP); + l2fsm.state_count = L2_STATE_COUNT; + l2fsm.event_count = L2_EVENT_COUNT; + l2fsm.strEvent = strL2Event; + l2fsm.strState = strL2State; + mISDN_FsmNew(&l2fsm, L2FnList, ARRAY_SIZE(L2FnList)); + TEIInit(deb); + return 0; +} + +void +Isdnl2_cleanup(void) +{ + mISDN_unregister_Bprotocol(&X75SLP); + TEIFree(); + mISDN_FsmFree(&l2fsm); +} + diff --git a/drivers/isdn/mISDN/layer2.h b/drivers/isdn/mISDN/layer2.h new file mode 100644 index 0000000..de2dd02 --- /dev/null +++ b/drivers/isdn/mISDN/layer2.h @@ -0,0 +1,140 @@ +/* + * Layer 2 defines + * + * Copyright 2008 by Karsten Keil <kkeil@novell.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <linux/mISDNif.h> +#include <linux/skbuff.h> +#include "fsm.h" + +#define MAX_WINDOW 8 + +struct manager { + struct mISDNchannel ch; + struct mISDNchannel bcast; + u_long options; + struct list_head layer2; + rwlock_t lock; + struct FsmInst deact; + struct FsmTimer datimer; + struct sk_buff_head sendq; + struct mISDNchannel *up; + u_int nextid; + u_int lastid; +}; + +struct teimgr { + int ri; + int rcnt; + struct FsmInst tei_m; + struct FsmTimer timer; + int tval, nval; + struct layer2 *l2; + struct manager *mgr; +}; + +struct laddr { + u_char A; + u_char B; +}; + +struct layer2 { + struct list_head list; + struct mISDNchannel ch; + u_long flag; + int id; + struct mISDNchannel *up; + signed char sapi; + signed char tei; + struct laddr addr; + u_int maxlen; + struct teimgr *tm; + u_int vs, va, vr; + int rc; + u_int window; + u_int sow; + struct FsmInst l2m; + struct FsmTimer t200, t203; + int T200, N200, T203; + u_int next_id; + u_int down_id; + struct sk_buff *windowar[MAX_WINDOW]; + struct sk_buff_head i_queue; + struct sk_buff_head ui_queue; + struct sk_buff_head down_queue; + struct sk_buff_head tmp_queue; +}; + +enum { + ST_L2_1, + ST_L2_2, + ST_L2_3, + ST_L2_4, + ST_L2_5, + ST_L2_6, + ST_L2_7, + ST_L2_8, +}; + +#define L2_STATE_COUNT (ST_L2_8+1) + +extern struct layer2 *create_l2(struct mISDNchannel *, u_int, + u_long, u_long); +extern int tei_l2(struct layer2 *, u_int, u_long arg); + + +/* from tei.c */ +extern int l2_tei(struct layer2 *, u_int, u_long arg); +extern void release_tei(struct layer2 *); +extern int TEIInit(u_int *); +extern void TEIFree(void); + +#define MAX_L2HEADER_LEN 4 + +#define RR 0x01 +#define RNR 0x05 +#define REJ 0x09 +#define SABME 0x6f +#define SABM 0x2f +#define DM 0x0f +#define UI 0x03 +#define DISC 0x43 +#define UA 0x63 +#define FRMR 0x87 +#define XID 0xaf + +#define CMD 0 +#define RSP 1 + +#define LC_FLUSH_WAIT 1 + +#define FLG_LAPB 0 +#define FLG_LAPD 1 +#define FLG_ORIG 2 +#define FLG_MOD128 3 +#define FLG_PEND_REL 4 +#define FLG_L3_INIT 5 +#define FLG_T200_RUN 6 +#define FLG_ACK_PEND 7 +#define FLG_REJEXC 8 +#define FLG_OWN_BUSY 9 +#define FLG_PEER_BUSY 10 +#define FLG_DCHAN_BUSY 11 +#define FLG_L1_ACTIV 12 +#define FLG_ESTAB_PEND 13 +#define FLG_PTP 14 +#define FLG_FIXED_TEI 15 +#define FLG_L2BLOCK 16 +#define FLG_L1_NOTREADY 17 +#define FLG_LAPD_NET 18 diff --git a/drivers/isdn/mISDN/socket.c b/drivers/isdn/mISDN/socket.c new file mode 100644 index 0000000..4ba4cc3 --- /dev/null +++ b/drivers/isdn/mISDN/socket.c @@ -0,0 +1,781 @@ +/* + * + * Author Karsten Keil <kkeil@novell.com> + * + * Copyright 2008 by Karsten Keil <kkeil@novell.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <linux/mISDNif.h> +#include "core.h" + +static int *debug; + +static struct proto mISDN_proto = { + .name = "misdn", + .owner = THIS_MODULE, + .obj_size = sizeof(struct mISDN_sock) +}; + +#define _pms(sk) ((struct mISDN_sock *)sk) + +static struct mISDN_sock_list data_sockets = { + .lock = __RW_LOCK_UNLOCKED(data_sockets.lock) +}; + +static struct mISDN_sock_list base_sockets = { + .lock = __RW_LOCK_UNLOCKED(base_sockets.lock) +}; + +#define L2_HEADER_LEN 4 + +static inline struct sk_buff * +_l2_alloc_skb(unsigned int len, gfp_t gfp_mask) +{ + struct sk_buff *skb; + + skb = alloc_skb(len + L2_HEADER_LEN, gfp_mask); + if (likely(skb)) + skb_reserve(skb, L2_HEADER_LEN); + return skb; +} + +static void +mISDN_sock_link(struct mISDN_sock_list *l, struct sock *sk) +{ + write_lock_bh(&l->lock); + sk_add_node(sk, &l->head); + write_unlock_bh(&l->lock); +} + +static void mISDN_sock_unlink(struct mISDN_sock_list *l, struct sock *sk) +{ + write_lock_bh(&l->lock); + sk_del_node_init(sk); + write_unlock_bh(&l->lock); +} + +static int +mISDN_send(struct mISDNchannel *ch, struct sk_buff *skb) +{ + struct mISDN_sock *msk; + int err; + + msk = container_of(ch, struct mISDN_sock, ch); + if (*debug & DEBUG_SOCKET) + printk(KERN_DEBUG "%s len %d %p\n", __func__, skb->len, skb); + if (msk->sk.sk_state == MISDN_CLOSED) + return -EUNATCH; + __net_timestamp(skb); + err = sock_queue_rcv_skb(&msk->sk, skb); + if (err) + printk(KERN_WARNING "%s: error %d\n", __func__, err); + return err; +} + +static int +mISDN_ctrl(struct mISDNchannel *ch, u_int cmd, void *arg) +{ + struct mISDN_sock *msk; + + msk = container_of(ch, struct mISDN_sock, ch); + if (*debug & DEBUG_SOCKET) + printk(KERN_DEBUG "%s(%p, %x, %p)\n", __func__, ch, cmd, arg); + switch (cmd) { + case CLOSE_CHANNEL: + msk->sk.sk_state = MISDN_CLOSED; + break; + } + return 0; +} + +static inline void +mISDN_sock_cmsg(struct sock *sk, struct msghdr *msg, struct sk_buff *skb) +{ + struct timeval tv; + + if (_pms(sk)->cmask & MISDN_TIME_STAMP) { + skb_get_timestamp(skb, &tv); + put_cmsg(msg, SOL_MISDN, MISDN_TIME_STAMP, sizeof(tv), &tv); + } +} + +static int +mISDN_sock_recvmsg(struct kiocb *iocb, struct socket *sock, + struct msghdr *msg, size_t len, int flags) +{ + struct sk_buff *skb; + struct sock *sk = sock->sk; + struct sockaddr_mISDN *maddr; + + int copied, err; + + if (*debug & DEBUG_SOCKET) + printk(KERN_DEBUG "%s: len %d, flags %x ch.nr %d, proto %x\n", + __func__, (int)len, flags, _pms(sk)->ch.nr, + sk->sk_protocol); + if (flags & (MSG_OOB)) + return -EOPNOTSUPP; + + if (sk->sk_state == MISDN_CLOSED) + return 0; + + skb = skb_recv_datagram(sk, flags, flags & MSG_DONTWAIT, &err); + if (!skb) + return err; + + if (msg->msg_namelen >= sizeof(struct sockaddr_mISDN)) { + msg->msg_namelen = sizeof(struct sockaddr_mISDN); + maddr = (struct sockaddr_mISDN *)msg->msg_name; + maddr->family = AF_ISDN; + maddr->dev = _pms(sk)->dev->id; + if ((sk->sk_protocol == ISDN_P_LAPD_TE) || + (sk->sk_protocol == ISDN_P_LAPD_NT)) { + maddr->channel = (mISDN_HEAD_ID(skb) >> 16) & 0xff; + maddr->tei = (mISDN_HEAD_ID(skb) >> 8) & 0xff; + maddr->sapi = mISDN_HEAD_ID(skb) & 0xff; + } else { + maddr->channel = _pms(sk)->ch.nr; + maddr->sapi = _pms(sk)->ch.addr & 0xFF; + maddr->tei = (_pms(sk)->ch.addr >> 8) & 0xFF; + } + } else { + if (msg->msg_namelen) + printk(KERN_WARNING "%s: too small namelen %d\n", + __func__, msg->msg_namelen); + msg->msg_namelen = 0; + } + + copied = skb->len + MISDN_HEADER_LEN; + if (len < copied) { + if (flags & MSG_PEEK) + atomic_dec(&skb->users); + else + skb_queue_head(&sk->sk_receive_queue, skb); + return -ENOSPC; + } + memcpy(skb_push(skb, MISDN_HEADER_LEN), mISDN_HEAD_P(skb), + MISDN_HEADER_LEN); + + err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied); + + mISDN_sock_cmsg(sk, msg, skb); + + skb_free_datagram(sk, skb); + + return err ? : copied; +} + +static int +mISDN_sock_sendmsg(struct kiocb *iocb, struct socket *sock, + struct msghdr *msg, size_t len) +{ + struct sock *sk = sock->sk; + struct sk_buff *skb; + int err = -ENOMEM; + struct sockaddr_mISDN *maddr; + + if (*debug & DEBUG_SOCKET) + printk(KERN_DEBUG "%s: len %d flags %x ch %d proto %x\n", + __func__, (int)len, msg->msg_flags, _pms(sk)->ch.nr, + sk->sk_protocol); + + if (msg->msg_flags & MSG_OOB) + return -EOPNOTSUPP; + + if (msg->msg_flags & ~(MSG_DONTWAIT|MSG_NOSIGNAL|MSG_ERRQUEUE)) + return -EINVAL; + + if (len < MISDN_HEADER_LEN) + return -EINVAL; + + if (sk->sk_state != MISDN_BOUND) + return -EBADFD; + + lock_sock(sk); + + skb = _l2_alloc_skb(len, GFP_KERNEL); + if (!skb) + goto done; + + if (memcpy_fromiovec(skb_put(skb, len), msg->msg_iov, len)) { + err = -EFAULT; + goto drop; + } + + memcpy(mISDN_HEAD_P(skb), skb->data, MISDN_HEADER_LEN); + skb_pull(skb, MISDN_HEADER_LEN); + + if (msg->msg_namelen >= sizeof(struct sockaddr_mISDN)) { + /* if we have a address, we use it */ + maddr = (struct sockaddr_mISDN *)msg->msg_name; + mISDN_HEAD_ID(skb) = maddr->channel; + } else { /* use default for L2 messages */ + if ((sk->sk_protocol == ISDN_P_LAPD_TE) || + (sk->sk_protocol == ISDN_P_LAPD_NT)) + mISDN_HEAD_ID(skb) = _pms(sk)->ch.nr; + } + + if (*debug & DEBUG_SOCKET) + printk(KERN_DEBUG "%s: ID:%x\n", + __func__, mISDN_HEAD_ID(skb)); + + err = -ENODEV; + if (!_pms(sk)->ch.peer || + (err = _pms(sk)->ch.recv(_pms(sk)->ch.peer, skb))) + goto drop; + + err = len; + +done: + release_sock(sk); + return err; + +drop: + kfree_skb(skb); + goto done; +} + +static int +data_sock_release(struct socket *sock) +{ + struct sock *sk = sock->sk; + + if (*debug & DEBUG_SOCKET) + printk(KERN_DEBUG "%s(%p) sk=%p\n", __func__, sock, sk); + if (!sk) + return 0; + switch (sk->sk_protocol) { + case ISDN_P_TE_S0: + case ISDN_P_NT_S0: + case ISDN_P_TE_E1: + case ISDN_P_NT_E1: + if (sk->sk_state == MISDN_BOUND) + delete_channel(&_pms(sk)->ch); + else + mISDN_sock_unlink(&data_sockets, sk); + break; + case ISDN_P_LAPD_TE: + case ISDN_P_LAPD_NT: + case ISDN_P_B_RAW: + case ISDN_P_B_HDLC: + case ISDN_P_B_X75SLP: + case ISDN_P_B_L2DTMF: + case ISDN_P_B_L2DSP: + case ISDN_P_B_L2DSPHDLC: + delete_channel(&_pms(sk)->ch); + mISDN_sock_unlink(&data_sockets, sk); + break; + } + + lock_sock(sk); + + sock_orphan(sk); + skb_queue_purge(&sk->sk_receive_queue); + + release_sock(sk); + sock_put(sk); + + return 0; +} + +static int +data_sock_ioctl_bound(struct sock *sk, unsigned int cmd, void __user *p) +{ + struct mISDN_ctrl_req cq; + int err = -EINVAL, val; + struct mISDNchannel *bchan, *next; + + lock_sock(sk); + if (!_pms(sk)->dev) { + err = -ENODEV; + goto done; + } + switch (cmd) { + case IMCTRLREQ: + if (copy_from_user(&cq, p, sizeof(cq))) { + err = -EFAULT; + break; + } + if ((sk->sk_protocol & ~ISDN_P_B_MASK) == ISDN_P_B_START) { + list_for_each_entry_safe(bchan, next, + &_pms(sk)->dev->bchannels, list) { + if (bchan->nr == cq.channel) { + err = bchan->ctrl(bchan, + CONTROL_CHANNEL, &cq); + break; + } + } + } else + err = _pms(sk)->dev->D.ctrl(&_pms(sk)->dev->D, + CONTROL_CHANNEL, &cq); + if (err) + break; + if (copy_to_user(p, &cq, sizeof(cq))) + err = -EFAULT; + break; + case IMCLEAR_L2: + if (sk->sk_protocol != ISDN_P_LAPD_NT) { + err = -EINVAL; + break; + } + if (get_user(val, (int __user *)p)) { + err = -EFAULT; + break; + } + err = _pms(sk)->dev->teimgr->ctrl(_pms(sk)->dev->teimgr, + CONTROL_CHANNEL, &val); + break; + default: + err = -EINVAL; + break; + } +done: + release_sock(sk); + return err; +} + +static int +data_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) +{ + int err = 0, id; + struct sock *sk = sock->sk; + struct mISDNdevice *dev; + struct mISDNversion ver; + + switch (cmd) { + case IMGETVERSION: + ver.major = MISDN_MAJOR_VERSION; + ver.minor = MISDN_MINOR_VERSION; + ver.release = MISDN_RELEASE; + if (copy_to_user((void __user *)arg, &ver, sizeof(ver))) + err = -EFAULT; + break; + case IMGETCOUNT: + id = get_mdevice_count(); + if (put_user(id, (int __user *)arg)) + err = -EFAULT; + break; + case IMGETDEVINFO: + if (get_user(id, (int __user *)arg)) { + err = -EFAULT; + break; + } + dev = get_mdevice(id); + if (dev) { + struct mISDN_devinfo di; + + di.id = dev->id; + di.Dprotocols = dev->Dprotocols; + di.Bprotocols = dev->Bprotocols | get_all_Bprotocols(); + di.protocol = dev->D.protocol; + memcpy(di.channelmap, dev->channelmap, + MISDN_CHMAP_SIZE * 4); + di.nrbchan = dev->nrbchan; + strcpy(di.name, dev->name); + if (copy_to_user((void __user *)arg, &di, sizeof(di))) + err = -EFAULT; + } else + err = -ENODEV; + break; + default: + if (sk->sk_state == MISDN_BOUND) + err = data_sock_ioctl_bound(sk, cmd, + (void __user *)arg); + else + err = -ENOTCONN; + } + return err; +} + +static int data_sock_setsockopt(struct socket *sock, int level, int optname, + char __user *optval, int len) +{ + struct sock *sk = sock->sk; + int err = 0, opt = 0; + + if (*debug & DEBUG_SOCKET) + printk(KERN_DEBUG "%s(%p, %d, %x, %p, %d)\n", __func__, sock, + level, optname, optval, len); + + lock_sock(sk); + + switch (optname) { + case MISDN_TIME_STAMP: + if (get_user(opt, (int __user *)optval)) { + err = -EFAULT; + break; + } + + if (opt) + _pms(sk)->cmask |= MISDN_TIME_STAMP; + else + _pms(sk)->cmask &= ~MISDN_TIME_STAMP; + break; + default: + err = -ENOPROTOOPT; + break; + } + release_sock(sk); + return err; +} + +static int data_sock_getsockopt(struct socket *sock, int level, int optname, + char __user *optval, int __user *optlen) +{ + struct sock *sk = sock->sk; + int len, opt; + + if (get_user(len, optlen)) + return -EFAULT; + + switch (optname) { + case MISDN_TIME_STAMP: + if (_pms(sk)->cmask & MISDN_TIME_STAMP) + opt = 1; + else + opt = 0; + + if (put_user(opt, optval)) + return -EFAULT; + break; + default: + return -ENOPROTOOPT; + } + + return 0; +} + +static int +data_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_len) +{ + struct sockaddr_mISDN *maddr = (struct sockaddr_mISDN *) addr; + struct sock *sk = sock->sk; + int err = 0; + + if (*debug & DEBUG_SOCKET) + printk(KERN_DEBUG "%s(%p) sk=%p\n", __func__, sock, sk); + if (addr_len != sizeof(struct sockaddr_mISDN)) + return -EINVAL; + if (!maddr || maddr->family != AF_ISDN) + return -EINVAL; + + lock_sock(sk); + + if (_pms(sk)->dev) { + err = -EALREADY; + goto done; + } + _pms(sk)->dev = get_mdevice(maddr->dev); + if (!_pms(sk)->dev) { + err = -ENODEV; + goto done; + } + _pms(sk)->ch.send = mISDN_send; + _pms(sk)->ch.ctrl = mISDN_ctrl; + + switch (sk->sk_protocol) { + case ISDN_P_TE_S0: + case ISDN_P_NT_S0: + case ISDN_P_TE_E1: + case ISDN_P_NT_E1: + mISDN_sock_unlink(&data_sockets, sk); + err = connect_layer1(_pms(sk)->dev, &_pms(sk)->ch, + sk->sk_protocol, maddr); + if (err) + mISDN_sock_link(&data_sockets, sk); + break; + case ISDN_P_LAPD_TE: + case ISDN_P_LAPD_NT: + err = create_l2entity(_pms(sk)->dev, &_pms(sk)->ch, + sk->sk_protocol, maddr); + break; + case ISDN_P_B_RAW: + case ISDN_P_B_HDLC: + case ISDN_P_B_X75SLP: + case ISDN_P_B_L2DTMF: + case ISDN_P_B_L2DSP: + case ISDN_P_B_L2DSPHDLC: + err = connect_Bstack(_pms(sk)->dev, &_pms(sk)->ch, + sk->sk_protocol, maddr); + break; + default: + err = -EPROTONOSUPPORT; + } + if (err) + goto done; + sk->sk_state = MISDN_BOUND; + _pms(sk)->ch.protocol = sk->sk_protocol; + +done: + release_sock(sk); + return err; +} + +static int +data_sock_getname(struct socket *sock, struct sockaddr *addr, + int *addr_len, int peer) +{ + struct sockaddr_mISDN *maddr = (struct sockaddr_mISDN *) addr; + struct sock *sk = sock->sk; + + if (!_pms(sk)->dev) + return -EBADFD; + + lock_sock(sk); + + *addr_len = sizeof(*maddr); + maddr->dev = _pms(sk)->dev->id; + maddr->channel = _pms(sk)->ch.nr; + maddr->sapi = _pms(sk)->ch.addr & 0xff; + maddr->tei = (_pms(sk)->ch.addr >> 8) & 0xff; + release_sock(sk); + return 0; +} + +static const struct proto_ops data_sock_ops = { + .family = PF_ISDN, + .owner = THIS_MODULE, + .release = data_sock_release, + .ioctl = data_sock_ioctl, + .bind = data_sock_bind, + .getname = data_sock_getname, + .sendmsg = mISDN_sock_sendmsg, + .recvmsg = mISDN_sock_recvmsg, + .poll = datagram_poll, + .listen = sock_no_listen, + .shutdown = sock_no_shutdown, + .setsockopt = data_sock_setsockopt, + .getsockopt = data_sock_getsockopt, + .connect = sock_no_connect, + .socketpair = sock_no_socketpair, + .accept = sock_no_accept, + .mmap = sock_no_mmap +}; + +static int +data_sock_create(struct net *net, struct socket *sock, int protocol) +{ + struct sock *sk; + + if (sock->type != SOCK_DGRAM) + return -ESOCKTNOSUPPORT; + + sk = sk_alloc(net, PF_ISDN, GFP_KERNEL, &mISDN_proto); + if (!sk) + return -ENOMEM; + + sock_init_data(sock, sk); + + sock->ops = &data_sock_ops; + sock->state = SS_UNCONNECTED; + sock_reset_flag(sk, SOCK_ZAPPED); + + sk->sk_protocol = protocol; + sk->sk_state = MISDN_OPEN; + mISDN_sock_link(&data_sockets, sk); + + return 0; +} + +static int +base_sock_release(struct socket *sock) +{ + struct sock *sk = sock->sk; + + printk(KERN_DEBUG "%s(%p) sk=%p\n", __func__, sock, sk); + if (!sk) + return 0; + + mISDN_sock_unlink(&base_sockets, sk); + sock_orphan(sk); + sock_put(sk); + + return 0; +} + +static int +base_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) +{ + int err = 0, id; + struct mISDNdevice *dev; + struct mISDNversion ver; + + switch (cmd) { + case IMGETVERSION: + ver.major = MISDN_MAJOR_VERSION; + ver.minor = MISDN_MINOR_VERSION; + ver.release = MISDN_RELEASE; + if (copy_to_user((void __user *)arg, &ver, sizeof(ver))) + err = -EFAULT; + break; + case IMGETCOUNT: + id = get_mdevice_count(); + if (put_user(id, (int __user *)arg)) + err = -EFAULT; + break; + case IMGETDEVINFO: + if (get_user(id, (int __user *)arg)) { + err = -EFAULT; + break; + } + dev = get_mdevice(id); + if (dev) { + struct mISDN_devinfo di; + + di.id = dev->id; + di.Dprotocols = dev->Dprotocols; + di.Bprotocols = dev->Bprotocols | get_all_Bprotocols(); + di.protocol = dev->D.protocol; + memcpy(di.channelmap, dev->channelmap, + MISDN_CHMAP_SIZE * 4); + di.nrbchan = dev->nrbchan; + strcpy(di.name, dev->name); + if (copy_to_user((void __user *)arg, &di, sizeof(di))) + err = -EFAULT; + } else + err = -ENODEV; + break; + default: + err = -EINVAL; + } + return err; +} + +static int +base_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_len) +{ + struct sockaddr_mISDN *maddr = (struct sockaddr_mISDN *) addr; + struct sock *sk = sock->sk; + int err = 0; + + if (!maddr || maddr->family != AF_ISDN) + return -EINVAL; + + lock_sock(sk); + + if (_pms(sk)->dev) { + err = -EALREADY; + goto done; + } + + _pms(sk)->dev = get_mdevice(maddr->dev); + if (!_pms(sk)->dev) { + err = -ENODEV; + goto done; + } + sk->sk_state = MISDN_BOUND; + +done: + release_sock(sk); + return err; +} + +static const struct proto_ops base_sock_ops = { + .family = PF_ISDN, + .owner = THIS_MODULE, + .release = base_sock_release, + .ioctl = base_sock_ioctl, + .bind = base_sock_bind, + .getname = sock_no_getname, + .sendmsg = sock_no_sendmsg, + .recvmsg = sock_no_recvmsg, + .poll = sock_no_poll, + .listen = sock_no_listen, + .shutdown = sock_no_shutdown, + .setsockopt = sock_no_setsockopt, + .getsockopt = sock_no_getsockopt, + .connect = sock_no_connect, + .socketpair = sock_no_socketpair, + .accept = sock_no_accept, + .mmap = sock_no_mmap +}; + + +static int +base_sock_create(struct net *net, struct socket *sock, int protocol) +{ + struct sock *sk; + + if (sock->type != SOCK_RAW) + return -ESOCKTNOSUPPORT; + + sk = sk_alloc(net, PF_ISDN, GFP_KERNEL, &mISDN_proto); + if (!sk) + return -ENOMEM; + + sock_init_data(sock, sk); + sock->ops = &base_sock_ops; + sock->state = SS_UNCONNECTED; + sock_reset_flag(sk, SOCK_ZAPPED); + sk->sk_protocol = protocol; + sk->sk_state = MISDN_OPEN; + mISDN_sock_link(&base_sockets, sk); + + return 0; +} + +static int +mISDN_sock_create(struct net *net, struct socket *sock, int proto) +{ + int err = -EPROTONOSUPPORT; + + switch (proto) { + case ISDN_P_BASE: + err = base_sock_create(net, sock, proto); + break; + case ISDN_P_TE_S0: + case ISDN_P_NT_S0: + case ISDN_P_TE_E1: + case ISDN_P_NT_E1: + case ISDN_P_LAPD_TE: + case ISDN_P_LAPD_NT: + case ISDN_P_B_RAW: + case ISDN_P_B_HDLC: + case ISDN_P_B_X75SLP: + case ISDN_P_B_L2DTMF: + case ISDN_P_B_L2DSP: + case ISDN_P_B_L2DSPHDLC: + err = data_sock_create(net, sock, proto); + break; + default: + return err; + } + + return err; +} + +static struct +net_proto_family mISDN_sock_family_ops = { + .owner = THIS_MODULE, + .family = PF_ISDN, + .create = mISDN_sock_create, +}; + +int +misdn_sock_init(u_int *deb) +{ + int err; + + debug = deb; + err = sock_register(&mISDN_sock_family_ops); + if (err) + printk(KERN_ERR "%s: error(%d)\n", __func__, err); + return err; +} + +void +misdn_sock_cleanup(void) +{ + sock_unregister(PF_ISDN); +} + diff --git a/drivers/isdn/mISDN/stack.c b/drivers/isdn/mISDN/stack.c new file mode 100644 index 0000000..54cfddc --- /dev/null +++ b/drivers/isdn/mISDN/stack.c @@ -0,0 +1,674 @@ +/* + * + * Author Karsten Keil <kkeil@novell.com> + * + * Copyright 2008 by Karsten Keil <kkeil@novell.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <linux/mISDNif.h> +#include <linux/kthread.h> +#include "core.h" + +static u_int *debug; + +static inline void +_queue_message(struct mISDNstack *st, struct sk_buff *skb) +{ + struct mISDNhead *hh = mISDN_HEAD_P(skb); + + if (*debug & DEBUG_QUEUE_FUNC) + printk(KERN_DEBUG "%s prim(%x) id(%x) %p\n", + __func__, hh->prim, hh->id, skb); + skb_queue_tail(&st->msgq, skb); + if (likely(!test_bit(mISDN_STACK_STOPPED, &st->status))) { + test_and_set_bit(mISDN_STACK_WORK, &st->status); + wake_up_interruptible(&st->workq); + } +} + +int +mISDN_queue_message(struct mISDNchannel *ch, struct sk_buff *skb) +{ + _queue_message(ch->st, skb); + return 0; +} + +static struct mISDNchannel * +get_channel4id(struct mISDNstack *st, u_int id) +{ + struct mISDNchannel *ch; + + mutex_lock(&st->lmutex); + list_for_each_entry(ch, &st->layer2, list) { + if (id == ch->nr) + goto unlock; + } + ch = NULL; +unlock: + mutex_unlock(&st->lmutex); + return ch; +} + +static void +send_socklist(struct mISDN_sock_list *sl, struct sk_buff *skb) +{ + struct hlist_node *node; + struct sock *sk; + struct sk_buff *cskb = NULL; + + read_lock(&sl->lock); + sk_for_each(sk, node, &sl->head) { + if (sk->sk_state != MISDN_BOUND) + continue; + if (!cskb) + cskb = skb_copy(skb, GFP_KERNEL); + if (!cskb) { + printk(KERN_WARNING "%s no skb\n", __func__); + break; + } + if (!sock_queue_rcv_skb(sk, cskb)) + cskb = NULL; + } + read_unlock(&sl->lock); + if (cskb) + dev_kfree_skb(cskb); +} + +static void +send_layer2(struct mISDNstack *st, struct sk_buff *skb) +{ + struct sk_buff *cskb; + struct mISDNhead *hh = mISDN_HEAD_P(skb); + struct mISDNchannel *ch; + int ret; + + if (!st) + return; + mutex_lock(&st->lmutex); + if ((hh->id & MISDN_ID_ADDR_MASK) == MISDN_ID_ANY) { /* L2 for all */ + list_for_each_entry(ch, &st->layer2, list) { + if (list_is_last(&ch->list, &st->layer2)) { + cskb = skb; + skb = NULL; + } else { + cskb = skb_copy(skb, GFP_KERNEL); + } + if (cskb) { + ret = ch->send(ch, cskb); + if (ret) { + if (*debug & DEBUG_SEND_ERR) + printk(KERN_DEBUG + "%s ch%d prim(%x) addr(%x)" + " err %d\n", + __func__, ch->nr, + hh->prim, ch->addr, ret); + dev_kfree_skb(cskb); + } + } else { + printk(KERN_WARNING "%s ch%d addr %x no mem\n", + __func__, ch->nr, ch->addr); + goto out; + } + } + } else { + list_for_each_entry(ch, &st->layer2, list) { + if ((hh->id & MISDN_ID_ADDR_MASK) == ch->addr) { + ret = ch->send(ch, skb); + if (!ret) + skb = NULL; + goto out; + } + } + ret = st->dev->teimgr->ctrl(st->dev->teimgr, CHECK_DATA, skb); + if (!ret) + skb = NULL; + else if (*debug & DEBUG_SEND_ERR) + printk(KERN_DEBUG + "%s ch%d mgr prim(%x) addr(%x) err %d\n", + __func__, ch->nr, hh->prim, ch->addr, ret); + } +out: + mutex_unlock(&st->lmutex); + if (skb) + dev_kfree_skb(skb); +} + +static inline int +send_msg_to_layer(struct mISDNstack *st, struct sk_buff *skb) +{ + struct mISDNhead *hh = mISDN_HEAD_P(skb); + struct mISDNchannel *ch; + int lm; + + lm = hh->prim & MISDN_LAYERMASK; + if (*debug & DEBUG_QUEUE_FUNC) + printk(KERN_DEBUG "%s prim(%x) id(%x) %p\n", + __func__, hh->prim, hh->id, skb); + if (lm == 0x1) { + if (!hlist_empty(&st->l1sock.head)) { + __net_timestamp(skb); + send_socklist(&st->l1sock, skb); + } + return st->layer1->send(st->layer1, skb); + } else if (lm == 0x2) { + if (!hlist_empty(&st->l1sock.head)) + send_socklist(&st->l1sock, skb); + send_layer2(st, skb); + return 0; + } else if (lm == 0x4) { + ch = get_channel4id(st, hh->id); + if (ch) + return ch->send(ch, skb); + else + printk(KERN_WARNING + "%s: dev(%s) prim(%x) id(%x) no channel\n", + __func__, st->dev->name, hh->prim, hh->id); + } else if (lm == 0x8) { + WARN_ON(lm == 0x8); + ch = get_channel4id(st, hh->id); + if (ch) + return ch->send(ch, skb); + else + printk(KERN_WARNING + "%s: dev(%s) prim(%x) id(%x) no channel\n", + __func__, st->dev->name, hh->prim, hh->id); + } else { + /* broadcast not handled yet */ + printk(KERN_WARNING "%s: dev(%s) prim %x not delivered\n", + __func__, st->dev->name, hh->prim); + } + return -ESRCH; +} + +static void +do_clear_stack(struct mISDNstack *st) +{ +} + +static int +mISDNStackd(void *data) +{ + struct mISDNstack *st = data; + int err = 0; + +#ifdef CONFIG_SMP + lock_kernel(); +#endif + sigfillset(¤t->blocked); +#ifdef CONFIG_SMP + unlock_kernel(); +#endif + if (*debug & DEBUG_MSG_THREAD) + printk(KERN_DEBUG "mISDNStackd %s started\n", st->dev->name); + + if (st->notify != NULL) { + complete(st->notify); + st->notify = NULL; + } + + for (;;) { + struct sk_buff *skb; + + if (unlikely(test_bit(mISDN_STACK_STOPPED, &st->status))) { + test_and_clear_bit(mISDN_STACK_WORK, &st->status); + test_and_clear_bit(mISDN_STACK_RUNNING, &st->status); + } else + test_and_set_bit(mISDN_STACK_RUNNING, &st->status); + while (test_bit(mISDN_STACK_WORK, &st->status)) { + skb = skb_dequeue(&st->msgq); + if (!skb) { + test_and_clear_bit(mISDN_STACK_WORK, + &st->status); + /* test if a race happens */ + skb = skb_dequeue(&st->msgq); + if (!skb) + continue; + test_and_set_bit(mISDN_STACK_WORK, + &st->status); + } +#ifdef MISDN_MSG_STATS + st->msg_cnt++; +#endif + err = send_msg_to_layer(st, skb); + if (unlikely(err)) { + if (*debug & DEBUG_SEND_ERR) + printk(KERN_DEBUG + "%s: %s prim(%x) id(%x) " + "send call(%d)\n", + __func__, st->dev->name, + mISDN_HEAD_PRIM(skb), + mISDN_HEAD_ID(skb), err); + dev_kfree_skb(skb); + continue; + } + if (unlikely(test_bit(mISDN_STACK_STOPPED, + &st->status))) { + test_and_clear_bit(mISDN_STACK_WORK, + &st->status); + test_and_clear_bit(mISDN_STACK_RUNNING, + &st->status); + break; + } + } + if (test_bit(mISDN_STACK_CLEARING, &st->status)) { + test_and_set_bit(mISDN_STACK_STOPPED, &st->status); + test_and_clear_bit(mISDN_STACK_RUNNING, &st->status); + do_clear_stack(st); + test_and_clear_bit(mISDN_STACK_CLEARING, &st->status); + test_and_set_bit(mISDN_STACK_RESTART, &st->status); + } + if (test_and_clear_bit(mISDN_STACK_RESTART, &st->status)) { + test_and_clear_bit(mISDN_STACK_STOPPED, &st->status); + test_and_set_bit(mISDN_STACK_RUNNING, &st->status); + if (!skb_queue_empty(&st->msgq)) + test_and_set_bit(mISDN_STACK_WORK, + &st->status); + } + if (test_bit(mISDN_STACK_ABORT, &st->status)) + break; + if (st->notify != NULL) { + complete(st->notify); + st->notify = NULL; + } +#ifdef MISDN_MSG_STATS + st->sleep_cnt++; +#endif + test_and_clear_bit(mISDN_STACK_ACTIVE, &st->status); + wait_event_interruptible(st->workq, (st->status & + mISDN_STACK_ACTION_MASK)); + if (*debug & DEBUG_MSG_THREAD) + printk(KERN_DEBUG "%s: %s wake status %08lx\n", + __func__, st->dev->name, st->status); + test_and_set_bit(mISDN_STACK_ACTIVE, &st->status); + + test_and_clear_bit(mISDN_STACK_WAKEUP, &st->status); + + if (test_bit(mISDN_STACK_STOPPED, &st->status)) { + test_and_clear_bit(mISDN_STACK_RUNNING, &st->status); +#ifdef MISDN_MSG_STATS + st->stopped_cnt++; +#endif + } + } +#ifdef MISDN_MSG_STATS + printk(KERN_DEBUG "mISDNStackd daemon for %s proceed %d " + "msg %d sleep %d stopped\n", + st->dev->name, st->msg_cnt, st->sleep_cnt, st->stopped_cnt); + printk(KERN_DEBUG + "mISDNStackd daemon for %s utime(%ld) stime(%ld)\n", + st->dev->name, st->thread->utime, st->thread->stime); + printk(KERN_DEBUG + "mISDNStackd daemon for %s nvcsw(%ld) nivcsw(%ld)\n", + st->dev->name, st->thread->nvcsw, st->thread->nivcsw); + printk(KERN_DEBUG "mISDNStackd daemon for %s killed now\n", + st->dev->name); +#endif + test_and_set_bit(mISDN_STACK_KILLED, &st->status); + test_and_clear_bit(mISDN_STACK_RUNNING, &st->status); + test_and_clear_bit(mISDN_STACK_ACTIVE, &st->status); + test_and_clear_bit(mISDN_STACK_ABORT, &st->status); + skb_queue_purge(&st->msgq); + st->thread = NULL; + if (st->notify != NULL) { + complete(st->notify); + st->notify = NULL; + } + return 0; +} + +static int +l1_receive(struct mISDNchannel *ch, struct sk_buff *skb) +{ + if (!ch->st) + return -ENODEV; + __net_timestamp(skb); + _queue_message(ch->st, skb); + return 0; +} + +void +set_channel_address(struct mISDNchannel *ch, u_int sapi, u_int tei) +{ + ch->addr = sapi | (tei << 8); +} + +void +__add_layer2(struct mISDNchannel *ch, struct mISDNstack *st) +{ + list_add_tail(&ch->list, &st->layer2); +} + +void +add_layer2(struct mISDNchannel *ch, struct mISDNstack *st) +{ + mutex_lock(&st->lmutex); + __add_layer2(ch, st); + mutex_unlock(&st->lmutex); +} + +static int +st_own_ctrl(struct mISDNchannel *ch, u_int cmd, void *arg) +{ + if (!ch->st || ch->st->layer1) + return -EINVAL; + return ch->st->layer1->ctrl(ch->st->layer1, cmd, arg); +} + +int +create_stack(struct mISDNdevice *dev) +{ + struct mISDNstack *newst; + int err; + DECLARE_COMPLETION_ONSTACK(done); + + newst = kzalloc(sizeof(struct mISDNstack), GFP_KERNEL); + if (!newst) { + printk(KERN_ERR "kmalloc mISDN_stack failed\n"); + return -ENOMEM; + } + newst->dev = dev; + INIT_LIST_HEAD(&newst->layer2); + INIT_HLIST_HEAD(&newst->l1sock.head); + rwlock_init(&newst->l1sock.lock); + init_waitqueue_head(&newst->workq); + skb_queue_head_init(&newst->msgq); + mutex_init(&newst->lmutex); + dev->D.st = newst; + err = create_teimanager(dev); + if (err) { + printk(KERN_ERR "kmalloc teimanager failed\n"); + kfree(newst); + return err; + } + dev->teimgr->peer = &newst->own; + dev->teimgr->recv = mISDN_queue_message; + dev->teimgr->st = newst; + newst->layer1 = &dev->D; + dev->D.recv = l1_receive; + dev->D.peer = &newst->own; + newst->own.st = newst; + newst->own.ctrl = st_own_ctrl; + newst->own.send = mISDN_queue_message; + newst->own.recv = mISDN_queue_message; + if (*debug & DEBUG_CORE_FUNC) + printk(KERN_DEBUG "%s: st(%s)\n", __func__, newst->dev->name); + newst->notify = &done; + newst->thread = kthread_run(mISDNStackd, (void *)newst, "mISDN_%s", + newst->dev->name); + if (IS_ERR(newst->thread)) { + err = PTR_ERR(newst->thread); + printk(KERN_ERR + "mISDN:cannot create kernel thread for %s (%d)\n", + newst->dev->name, err); + delete_teimanager(dev->teimgr); + kfree(newst); + } else + wait_for_completion(&done); + return err; +} + +int +connect_layer1(struct mISDNdevice *dev, struct mISDNchannel *ch, + u_int protocol, struct sockaddr_mISDN *adr) +{ + struct mISDN_sock *msk = container_of(ch, struct mISDN_sock, ch); + struct channel_req rq; + int err; + + + if (*debug & DEBUG_CORE_FUNC) + printk(KERN_DEBUG "%s: %s proto(%x) adr(%d %d %d %d)\n", + __func__, dev->name, protocol, adr->dev, adr->channel, + adr->sapi, adr->tei); + switch (protocol) { + case ISDN_P_NT_S0: + case ISDN_P_NT_E1: + case ISDN_P_TE_S0: + case ISDN_P_TE_E1: +#ifdef PROTOCOL_CHECK + /* this should be enhanced */ + if (!list_empty(&dev->D.st->layer2) + && dev->D.protocol != protocol) + return -EBUSY; + if (!hlist_empty(&dev->D.st->l1sock.head) + && dev->D.protocol != protocol) + return -EBUSY; +#endif + ch->recv = mISDN_queue_message; + ch->peer = &dev->D.st->own; + ch->st = dev->D.st; + rq.protocol = protocol; + rq.adr.channel = 0; + err = dev->D.ctrl(&dev->D, OPEN_CHANNEL, &rq); + printk(KERN_DEBUG "%s: ret 1 %d\n", __func__, err); + if (err) + return err; + write_lock_bh(&dev->D.st->l1sock.lock); + sk_add_node(&msk->sk, &dev->D.st->l1sock.head); + write_unlock_bh(&dev->D.st->l1sock.lock); + break; + default: + return -ENOPROTOOPT; + } + return 0; +} + +int +connect_Bstack(struct mISDNdevice *dev, struct mISDNchannel *ch, + u_int protocol, struct sockaddr_mISDN *adr) +{ + struct channel_req rq, rq2; + int pmask, err; + struct Bprotocol *bp; + + if (*debug & DEBUG_CORE_FUNC) + printk(KERN_DEBUG "%s: %s proto(%x) adr(%d %d %d %d)\n", + __func__, dev->name, protocol, + adr->dev, adr->channel, adr->sapi, + adr->tei); + ch->st = dev->D.st; + pmask = 1 << (protocol & ISDN_P_B_MASK); + if (pmask & dev->Bprotocols) { + rq.protocol = protocol; + rq.adr = *adr; + err = dev->D.ctrl(&dev->D, OPEN_CHANNEL, &rq); + if (err) + return err; + ch->recv = rq.ch->send; + ch->peer = rq.ch; + rq.ch->recv = ch->send; + rq.ch->peer = ch; + rq.ch->st = dev->D.st; + } else { + bp = get_Bprotocol4mask(pmask); + if (!bp) + return -ENOPROTOOPT; + rq2.protocol = protocol; + rq2.adr = *adr; + rq2.ch = ch; + err = bp->create(&rq2); + if (err) + return err; + ch->recv = rq2.ch->send; + ch->peer = rq2.ch; + rq2.ch->st = dev->D.st; + rq.protocol = rq2.protocol; + rq.adr = *adr; + err = dev->D.ctrl(&dev->D, OPEN_CHANNEL, &rq); + if (err) { + rq2.ch->ctrl(rq2.ch, CLOSE_CHANNEL, NULL); + return err; + } + rq2.ch->recv = rq.ch->send; + rq2.ch->peer = rq.ch; + rq.ch->recv = rq2.ch->send; + rq.ch->peer = rq2.ch; + rq.ch->st = dev->D.st; + } + ch->protocol = protocol; + ch->nr = rq.ch->nr; + return 0; +} + +int +create_l2entity(struct mISDNdevice *dev, struct mISDNchannel *ch, + u_int protocol, struct sockaddr_mISDN *adr) +{ + struct channel_req rq; + int err; + + if (*debug & DEBUG_CORE_FUNC) + printk(KERN_DEBUG "%s: %s proto(%x) adr(%d %d %d %d)\n", + __func__, dev->name, protocol, + adr->dev, adr->channel, adr->sapi, + adr->tei); + rq.protocol = ISDN_P_TE_S0; + if (dev->Dprotocols & (1 << ISDN_P_TE_E1)) + rq.protocol = ISDN_P_TE_E1; + switch (protocol) { + case ISDN_P_LAPD_NT: + rq.protocol = ISDN_P_NT_S0; + if (dev->Dprotocols & (1 << ISDN_P_NT_E1)) + rq.protocol = ISDN_P_NT_E1; + case ISDN_P_LAPD_TE: +#ifdef PROTOCOL_CHECK + /* this should be enhanced */ + if (!list_empty(&dev->D.st->layer2) + && dev->D.protocol != protocol) + return -EBUSY; + if (!hlist_empty(&dev->D.st->l1sock.head) + && dev->D.protocol != protocol) + return -EBUSY; +#endif + ch->recv = mISDN_queue_message; + ch->peer = &dev->D.st->own; + ch->st = dev->D.st; + rq.adr.channel = 0; + err = dev->D.ctrl(&dev->D, OPEN_CHANNEL, &rq); + printk(KERN_DEBUG "%s: ret 1 %d\n", __func__, err); + if (err) + break; + rq.protocol = protocol; + rq.adr = *adr; + rq.ch = ch; + err = dev->teimgr->ctrl(dev->teimgr, OPEN_CHANNEL, &rq); + printk(KERN_DEBUG "%s: ret 2 %d\n", __func__, err); + if (!err) { + if ((protocol == ISDN_P_LAPD_NT) && !rq.ch) + break; + add_layer2(rq.ch, dev->D.st); + rq.ch->recv = mISDN_queue_message; + rq.ch->peer = &dev->D.st->own; + rq.ch->ctrl(rq.ch, OPEN_CHANNEL, NULL); /* can't fail */ + } + break; + default: + err = -EPROTONOSUPPORT; + } + return err; +} + +void +delete_channel(struct mISDNchannel *ch) +{ + struct mISDN_sock *msk = container_of(ch, struct mISDN_sock, ch); + struct mISDNchannel *pch; + + if (!ch->st) { + printk(KERN_WARNING "%s: no stack\n", __func__); + return; + } + if (*debug & DEBUG_CORE_FUNC) + printk(KERN_DEBUG "%s: st(%s) protocol(%x)\n", __func__, + ch->st->dev->name, ch->protocol); + if (ch->protocol >= ISDN_P_B_START) { + if (ch->peer) { + ch->peer->ctrl(ch->peer, CLOSE_CHANNEL, NULL); + ch->peer = NULL; + } + return; + } + switch (ch->protocol) { + case ISDN_P_NT_S0: + case ISDN_P_TE_S0: + case ISDN_P_NT_E1: + case ISDN_P_TE_E1: + write_lock_bh(&ch->st->l1sock.lock); + sk_del_node_init(&msk->sk); + write_unlock_bh(&ch->st->l1sock.lock); + ch->st->dev->D.ctrl(&ch->st->dev->D, CLOSE_CHANNEL, NULL); + break; + case ISDN_P_LAPD_TE: + pch = get_channel4id(ch->st, ch->nr); + if (pch) { + mutex_lock(&ch->st->lmutex); + list_del(&pch->list); + mutex_unlock(&ch->st->lmutex); + pch->ctrl(pch, CLOSE_CHANNEL, NULL); + pch = ch->st->dev->teimgr; + pch->ctrl(pch, CLOSE_CHANNEL, NULL); + } else + printk(KERN_WARNING "%s: no l2 channel\n", + __func__); + break; + case ISDN_P_LAPD_NT: + pch = ch->st->dev->teimgr; + if (pch) { + pch->ctrl(pch, CLOSE_CHANNEL, NULL); + } else + printk(KERN_WARNING "%s: no l2 channel\n", + __func__); + break; + default: + break; + } + return; +} + +void +delete_stack(struct mISDNdevice *dev) +{ + struct mISDNstack *st = dev->D.st; + DECLARE_COMPLETION_ONSTACK(done); + + if (*debug & DEBUG_CORE_FUNC) + printk(KERN_DEBUG "%s: st(%s)\n", __func__, + st->dev->name); + if (dev->teimgr) + delete_teimanager(dev->teimgr); + if (st->thread) { + if (st->notify) { + printk(KERN_WARNING "%s: notifier in use\n", + __func__); + complete(st->notify); + } + st->notify = &done; + test_and_set_bit(mISDN_STACK_ABORT, &st->status); + test_and_set_bit(mISDN_STACK_WAKEUP, &st->status); + wake_up_interruptible(&st->workq); + wait_for_completion(&done); + } + if (!list_empty(&st->layer2)) + printk(KERN_WARNING "%s: layer2 list not empty\n", + __func__); + if (!hlist_empty(&st->l1sock.head)) + printk(KERN_WARNING "%s: layer1 list not empty\n", + __func__); + kfree(st); +} + +void +mISDN_initstack(u_int *dp) +{ + debug = dp; +} diff --git a/drivers/isdn/mISDN/tei.c b/drivers/isdn/mISDN/tei.c new file mode 100644 index 0000000..56a76a0 --- /dev/null +++ b/drivers/isdn/mISDN/tei.c @@ -0,0 +1,1340 @@ +/* + * + * Author Karsten Keil <kkeil@novell.com> + * + * Copyright 2008 by Karsten Keil <kkeil@novell.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ +#include "layer2.h" +#include <linux/random.h> +#include "core.h" + +#define ID_REQUEST 1 +#define ID_ASSIGNED 2 +#define ID_DENIED 3 +#define ID_CHK_REQ 4 +#define ID_CHK_RES 5 +#define ID_REMOVE 6 +#define ID_VERIFY 7 + +#define TEI_ENTITY_ID 0xf + +#define MGR_PH_ACTIVE 16 +#define MGR_PH_NOTREADY 17 + +#define DATIMER_VAL 10000 + +static u_int *debug; + +static struct Fsm deactfsm = {NULL, 0, 0, NULL, NULL}; +static struct Fsm teifsmu = {NULL, 0, 0, NULL, NULL}; +static struct Fsm teifsmn = {NULL, 0, 0, NULL, NULL}; + +enum { + ST_L1_DEACT, + ST_L1_DEACT_PENDING, + ST_L1_ACTIV, +}; +#define DEACT_STATE_COUNT (ST_L1_ACTIV+1) + +static char *strDeactState[] = +{ + "ST_L1_DEACT", + "ST_L1_DEACT_PENDING", + "ST_L1_ACTIV", +}; + +enum { + EV_ACTIVATE, + EV_ACTIVATE_IND, + EV_DEACTIVATE, + EV_DEACTIVATE_IND, + EV_UI, + EV_DATIMER, +}; + +#define DEACT_EVENT_COUNT (EV_DATIMER+1) + +static char *strDeactEvent[] = +{ + "EV_ACTIVATE", + "EV_ACTIVATE_IND", + "EV_DEACTIVATE", + "EV_DEACTIVATE_IND", + "EV_UI", + "EV_DATIMER", +}; + +static void +da_debug(struct FsmInst *fi, char *fmt, ...) +{ + struct manager *mgr = fi->userdata; + va_list va; + + if (!(*debug & DEBUG_L2_TEIFSM)) + return; + va_start(va, fmt); + printk(KERN_DEBUG "mgr(%d): ", mgr->ch.st->dev->id); + vprintk(fmt, va); + printk("\n"); + va_end(va); +} + +static void +da_activate(struct FsmInst *fi, int event, void *arg) +{ + struct manager *mgr = fi->userdata; + + if (fi->state == ST_L1_DEACT_PENDING) + mISDN_FsmDelTimer(&mgr->datimer, 1); + mISDN_FsmChangeState(fi, ST_L1_ACTIV); +} + +static void +da_deactivate_ind(struct FsmInst *fi, int event, void *arg) +{ + mISDN_FsmChangeState(fi, ST_L1_DEACT); +} + +static void +da_deactivate(struct FsmInst *fi, int event, void *arg) +{ + struct manager *mgr = fi->userdata; + struct layer2 *l2; + u_long flags; + + read_lock_irqsave(&mgr->lock, flags); + list_for_each_entry(l2, &mgr->layer2, list) { + if (l2->l2m.state > ST_L2_4) { + /* have still activ TEI */ + read_unlock_irqrestore(&mgr->lock, flags); + return; + } + } + read_unlock_irqrestore(&mgr->lock, flags); + /* All TEI are inactiv */ + mISDN_FsmAddTimer(&mgr->datimer, DATIMER_VAL, EV_DATIMER, NULL, 1); + mISDN_FsmChangeState(fi, ST_L1_DEACT_PENDING); +} + +static void +da_ui(struct FsmInst *fi, int event, void *arg) +{ + struct manager *mgr = fi->userdata; + + /* restart da timer */ + mISDN_FsmDelTimer(&mgr->datimer, 2); + mISDN_FsmAddTimer(&mgr->datimer, DATIMER_VAL, EV_DATIMER, NULL, 2); + +} + +static void +da_timer(struct FsmInst *fi, int event, void *arg) +{ + struct manager *mgr = fi->userdata; + struct layer2 *l2; + u_long flags; + + /* check again */ + read_lock_irqsave(&mgr->lock, flags); + list_for_each_entry(l2, &mgr->layer2, list) { + if (l2->l2m.state > ST_L2_4) { + /* have still activ TEI */ + read_unlock_irqrestore(&mgr->lock, flags); + mISDN_FsmChangeState(fi, ST_L1_ACTIV); + return; + } + } + read_unlock_irqrestore(&mgr->lock, flags); + /* All TEI are inactiv */ + mISDN_FsmChangeState(fi, ST_L1_DEACT); + _queue_data(&mgr->ch, PH_DEACTIVATE_REQ, MISDN_ID_ANY, 0, NULL, + GFP_ATOMIC); +} + +static struct FsmNode DeactFnList[] = +{ + {ST_L1_DEACT, EV_ACTIVATE_IND, da_activate}, + {ST_L1_ACTIV, EV_DEACTIVATE_IND, da_deactivate_ind}, + {ST_L1_ACTIV, EV_DEACTIVATE, da_deactivate}, + {ST_L1_DEACT_PENDING, EV_ACTIVATE, da_activate}, + {ST_L1_DEACT_PENDING, EV_UI, da_ui}, + {ST_L1_DEACT_PENDING, EV_DATIMER, da_timer}, +}; + +enum { + ST_TEI_NOP, + ST_TEI_IDREQ, + ST_TEI_IDVERIFY, +}; + +#define TEI_STATE_COUNT (ST_TEI_IDVERIFY+1) + +static char *strTeiState[] = +{ + "ST_TEI_NOP", + "ST_TEI_IDREQ", + "ST_TEI_IDVERIFY", +}; + +enum { + EV_IDREQ, + EV_ASSIGN, + EV_ASSIGN_REQ, + EV_DENIED, + EV_CHKREQ, + EV_CHKRESP, + EV_REMOVE, + EV_VERIFY, + EV_TIMER, +}; + +#define TEI_EVENT_COUNT (EV_TIMER+1) + +static char *strTeiEvent[] = +{ + "EV_IDREQ", + "EV_ASSIGN", + "EV_ASSIGN_REQ", + "EV_DENIED", + "EV_CHKREQ", + "EV_CHKRESP", + "EV_REMOVE", + "EV_VERIFY", + "EV_TIMER", +}; + +static void +tei_debug(struct FsmInst *fi, char *fmt, ...) +{ + struct teimgr *tm = fi->userdata; + va_list va; + + if (!(*debug & DEBUG_L2_TEIFSM)) + return; + va_start(va, fmt); + printk(KERN_DEBUG "tei(%d): ", tm->l2->tei); + vprintk(fmt, va); + printk("\n"); + va_end(va); +} + + + +static int +get_free_id(struct manager *mgr) +{ + u64 ids = 0; + int i; + struct layer2 *l2; + + list_for_each_entry(l2, &mgr->layer2, list) { + if (l2->ch.nr > 63) { + printk(KERN_WARNING + "%s: more as 63 layer2 for one device\n", + __func__); + return -EBUSY; + } + test_and_set_bit(l2->ch.nr, (u_long *)&ids); + } + for (i = 1; i < 64; i++) + if (!test_bit(i, (u_long *)&ids)) + return i; + printk(KERN_WARNING "%s: more as 63 layer2 for one device\n", + __func__); + return -EBUSY; +} + +static int +get_free_tei(struct manager *mgr) +{ + u64 ids = 0; + int i; + struct layer2 *l2; + + list_for_each_entry(l2, &mgr->layer2, list) { + if (l2->ch.nr == 0) + continue; + if ((l2->ch.addr & 0xff) != 0) + continue; + i = l2->ch.addr >> 8; + if (i < 64) + continue; + i -= 64; + + test_and_set_bit(i, (u_long *)&ids); + } + for (i = 0; i < 64; i++) + if (!test_bit(i, (u_long *)&ids)) + return i + 64; + printk(KERN_WARNING "%s: more as 63 dynamic tei for one device\n", + __func__); + return -1; +} + +static void +teiup_create(struct manager *mgr, u_int prim, int len, void *arg) +{ + struct sk_buff *skb; + struct mISDNhead *hh; + int err; + + skb = mI_alloc_skb(len, GFP_ATOMIC); + if (!skb) + return; + hh = mISDN_HEAD_P(skb); + hh->prim = prim; + hh->id = (mgr->ch.nr << 16) | mgr->ch.addr; + if (len) + memcpy(skb_put(skb, len), arg, len); + err = mgr->up->send(mgr->up, skb); + if (err) { + printk(KERN_WARNING "%s: err=%d\n", __func__, err); + dev_kfree_skb(skb); + } +} + +static u_int +new_id(struct manager *mgr) +{ + u_int id; + + id = mgr->nextid++; + if (id == 0x7fff) + mgr->nextid = 1; + id <<= 16; + id |= GROUP_TEI << 8; + id |= TEI_SAPI; + return id; +} + +static void +do_send(struct manager *mgr) +{ + if (!test_bit(MGR_PH_ACTIVE, &mgr->options)) + return; + + if (!test_and_set_bit(MGR_PH_NOTREADY, &mgr->options)) { + struct sk_buff *skb = skb_dequeue(&mgr->sendq); + + if (!skb) { + test_and_clear_bit(MGR_PH_NOTREADY, &mgr->options); + return; + } + mgr->lastid = mISDN_HEAD_ID(skb); + mISDN_FsmEvent(&mgr->deact, EV_UI, NULL); + if (mgr->ch.recv(mgr->ch.peer, skb)) { + dev_kfree_skb(skb); + test_and_clear_bit(MGR_PH_NOTREADY, &mgr->options); + mgr->lastid = MISDN_ID_NONE; + } + } +} + +static void +do_ack(struct manager *mgr, u_int id) +{ + if (test_bit(MGR_PH_NOTREADY, &mgr->options)) { + if (id == mgr->lastid) { + if (test_bit(MGR_PH_ACTIVE, &mgr->options)) { + struct sk_buff *skb; + + skb = skb_dequeue(&mgr->sendq); + if (skb) { + mgr->lastid = mISDN_HEAD_ID(skb); + if (!mgr->ch.recv(mgr->ch.peer, skb)) + return; + dev_kfree_skb(skb); + } + } + mgr->lastid = MISDN_ID_NONE; + test_and_clear_bit(MGR_PH_NOTREADY, &mgr->options); + } + } +} + +static void +mgr_send_down(struct manager *mgr, struct sk_buff *skb) +{ + skb_queue_tail(&mgr->sendq, skb); + if (!test_bit(MGR_PH_ACTIVE, &mgr->options)) { + _queue_data(&mgr->ch, PH_ACTIVATE_REQ, MISDN_ID_ANY, 0, + NULL, GFP_KERNEL); + } else { + do_send(mgr); + } +} + +static int +dl_unit_data(struct manager *mgr, struct sk_buff *skb) +{ + if (!test_bit(MGR_OPT_NETWORK, &mgr->options)) /* only net send UI */ + return -EINVAL; + if (!test_bit(MGR_PH_ACTIVE, &mgr->options)) + _queue_data(&mgr->ch, PH_ACTIVATE_REQ, MISDN_ID_ANY, 0, + NULL, GFP_KERNEL); + skb_push(skb, 3); + skb->data[0] = 0x02; /* SAPI 0 C/R = 1 */ + skb->data[1] = 0xff; /* TEI 127 */ + skb->data[2] = UI; /* UI frame */ + mISDN_HEAD_PRIM(skb) = PH_DATA_REQ; + mISDN_HEAD_ID(skb) = new_id(mgr); + skb_queue_tail(&mgr->sendq, skb); + do_send(mgr); + return 0; +} + +unsigned int +random_ri(void) +{ + u16 x; + + get_random_bytes(&x, sizeof(x)); + return x; +} + +static struct layer2 * +findtei(struct manager *mgr, int tei) +{ + struct layer2 *l2; + u_long flags; + + read_lock_irqsave(&mgr->lock, flags); + list_for_each_entry(l2, &mgr->layer2, list) { + if ((l2->sapi == 0) && (l2->tei > 0) && + (l2->tei != GROUP_TEI) && (l2->tei == tei)) + goto done; + } + l2 = NULL; +done: + read_unlock_irqrestore(&mgr->lock, flags); + return l2; +} + +static void +put_tei_msg(struct manager *mgr, u_char m_id, unsigned int ri, u_char tei) +{ + struct sk_buff *skb; + u_char bp[8]; + + bp[0] = (TEI_SAPI << 2); + if (test_bit(MGR_OPT_NETWORK, &mgr->options)) + bp[0] |= 2; /* CR:=1 for net command */ + bp[1] = (GROUP_TEI << 1) | 0x1; + bp[2] = UI; + bp[3] = TEI_ENTITY_ID; + bp[4] = ri >> 8; + bp[5] = ri & 0xff; + bp[6] = m_id; + bp[7] = (tei << 1) | 1; + skb = _alloc_mISDN_skb(PH_DATA_REQ, new_id(mgr), + 8, bp, GFP_ATOMIC); + if (!skb) { + printk(KERN_WARNING "%s: no skb for tei msg\n", __func__); + return; + } + mgr_send_down(mgr, skb); +} + +static void +tei_id_request(struct FsmInst *fi, int event, void *arg) +{ + struct teimgr *tm = fi->userdata; + + if (tm->l2->tei != GROUP_TEI) { + tm->tei_m.printdebug(&tm->tei_m, + "assign request for allready assigned tei %d", + tm->l2->tei); + return; + } + tm->ri = random_ri(); + if (*debug & DEBUG_L2_TEI) + tm->tei_m.printdebug(&tm->tei_m, + "assign request ri %d", tm->ri); + put_tei_msg(tm->mgr, ID_REQUEST, tm->ri, GROUP_TEI); + mISDN_FsmChangeState(fi, ST_TEI_IDREQ); + mISDN_FsmAddTimer(&tm->timer, tm->tval, EV_TIMER, NULL, 1); + tm->nval = 3; +} + +static void +tei_id_assign(struct FsmInst *fi, int event, void *arg) +{ + struct teimgr *tm = fi->userdata; + struct layer2 *l2; + u_char *dp = arg; + int ri, tei; + + ri = ((unsigned int) *dp++ << 8); + ri += *dp++; + dp++; + tei = *dp >> 1; + if (*debug & DEBUG_L2_TEI) + tm->tei_m.printdebug(fi, "identity assign ri %d tei %d", + ri, tei); + l2 = findtei(tm->mgr, tei); + if (l2) { /* same tei is in use */ + if (ri != l2->tm->ri) { + tm->tei_m.printdebug(fi, + "possible duplicate assignment tei %d", tei); + tei_l2(l2, MDL_ERROR_RSP, 0); + } + } else if (ri == tm->ri) { + mISDN_FsmDelTimer(&tm->timer, 1); + mISDN_FsmChangeState(fi, ST_TEI_NOP); + tei_l2(tm->l2, MDL_ASSIGN_REQ, tei); + } +} + +static void +tei_id_test_dup(struct FsmInst *fi, int event, void *arg) +{ + struct teimgr *tm = fi->userdata; + struct layer2 *l2; + u_char *dp = arg; + int tei, ri; + + ri = ((unsigned int) *dp++ << 8); + ri += *dp++; + dp++; + tei = *dp >> 1; + if (*debug & DEBUG_L2_TEI) + tm->tei_m.printdebug(fi, "foreign identity assign ri %d tei %d", + ri, tei); + l2 = findtei(tm->mgr, tei); + if (l2) { /* same tei is in use */ + if (ri != l2->tm->ri) { /* and it wasn't our request */ + tm->tei_m.printdebug(fi, + "possible duplicate assignment tei %d", tei); + mISDN_FsmEvent(&l2->tm->tei_m, EV_VERIFY, NULL); + } + } +} + +static void +tei_id_denied(struct FsmInst *fi, int event, void *arg) +{ + struct teimgr *tm = fi->userdata; + u_char *dp = arg; + int ri, tei; + + ri = ((unsigned int) *dp++ << 8); + ri += *dp++; + dp++; + tei = *dp >> 1; + if (*debug & DEBUG_L2_TEI) + tm->tei_m.printdebug(fi, "identity denied ri %d tei %d", + ri, tei); +} + +static void +tei_id_chk_req(struct FsmInst *fi, int event, void *arg) +{ + struct teimgr *tm = fi->userdata; + u_char *dp = arg; + int tei; + + tei = *(dp+3) >> 1; + if (*debug & DEBUG_L2_TEI) + tm->tei_m.printdebug(fi, "identity check req tei %d", tei); + if ((tm->l2->tei != GROUP_TEI) && ((tei == GROUP_TEI) || + (tei == tm->l2->tei))) { + mISDN_FsmDelTimer(&tm->timer, 4); + mISDN_FsmChangeState(&tm->tei_m, ST_TEI_NOP); + put_tei_msg(tm->mgr, ID_CHK_RES, random_ri(), tm->l2->tei); + } +} + +static void +tei_id_remove(struct FsmInst *fi, int event, void *arg) +{ + struct teimgr *tm = fi->userdata; + u_char *dp = arg; + int tei; + + tei = *(dp+3) >> 1; + if (*debug & DEBUG_L2_TEI) + tm->tei_m.printdebug(fi, "identity remove tei %d", tei); + if ((tm->l2->tei != GROUP_TEI) && + ((tei == GROUP_TEI) || (tei == tm->l2->tei))) { + mISDN_FsmDelTimer(&tm->timer, 5); + mISDN_FsmChangeState(&tm->tei_m, ST_TEI_NOP); + tei_l2(tm->l2, MDL_REMOVE_REQ, 0); + } +} + +static void +tei_id_verify(struct FsmInst *fi, int event, void *arg) +{ + struct teimgr *tm = fi->userdata; + + if (*debug & DEBUG_L2_TEI) + tm->tei_m.printdebug(fi, "id verify request for tei %d", + tm->l2->tei); + put_tei_msg(tm->mgr, ID_VERIFY, 0, tm->l2->tei); + mISDN_FsmChangeState(&tm->tei_m, ST_TEI_IDVERIFY); + mISDN_FsmAddTimer(&tm->timer, tm->tval, EV_TIMER, NULL, 2); + tm->nval = 2; +} + +static void +tei_id_req_tout(struct FsmInst *fi, int event, void *arg) +{ + struct teimgr *tm = fi->userdata; + + if (--tm->nval) { + tm->ri = random_ri(); + if (*debug & DEBUG_L2_TEI) + tm->tei_m.printdebug(fi, "assign req(%d) ri %d", + 4 - tm->nval, tm->ri); + put_tei_msg(tm->mgr, ID_REQUEST, tm->ri, GROUP_TEI); + mISDN_FsmAddTimer(&tm->timer, tm->tval, EV_TIMER, NULL, 3); + } else { + tm->tei_m.printdebug(fi, "assign req failed"); + tei_l2(tm->l2, MDL_ERROR_RSP, 0); + mISDN_FsmChangeState(fi, ST_TEI_NOP); + } +} + +static void +tei_id_ver_tout(struct FsmInst *fi, int event, void *arg) +{ + struct teimgr *tm = fi->userdata; + + if (--tm->nval) { + if (*debug & DEBUG_L2_TEI) + tm->tei_m.printdebug(fi, + "id verify req(%d) for tei %d", + 3 - tm->nval, tm->l2->tei); + put_tei_msg(tm->mgr, ID_VERIFY, 0, tm->l2->tei); + mISDN_FsmAddTimer(&tm->timer, tm->tval, EV_TIMER, NULL, 4); + } else { + tm->tei_m.printdebug(fi, "verify req for tei %d failed", + tm->l2->tei); + tei_l2(tm->l2, MDL_REMOVE_REQ, 0); + mISDN_FsmChangeState(fi, ST_TEI_NOP); + } +} + +static struct FsmNode TeiFnListUser[] = +{ + {ST_TEI_NOP, EV_IDREQ, tei_id_request}, + {ST_TEI_NOP, EV_ASSIGN, tei_id_test_dup}, + {ST_TEI_NOP, EV_VERIFY, tei_id_verify}, + {ST_TEI_NOP, EV_REMOVE, tei_id_remove}, + {ST_TEI_NOP, EV_CHKREQ, tei_id_chk_req}, + {ST_TEI_IDREQ, EV_TIMER, tei_id_req_tout}, + {ST_TEI_IDREQ, EV_ASSIGN, tei_id_assign}, + {ST_TEI_IDREQ, EV_DENIED, tei_id_denied}, + {ST_TEI_IDVERIFY, EV_TIMER, tei_id_ver_tout}, + {ST_TEI_IDVERIFY, EV_REMOVE, tei_id_remove}, + {ST_TEI_IDVERIFY, EV_CHKREQ, tei_id_chk_req}, +}; + +static void +tei_l2remove(struct layer2 *l2) +{ + put_tei_msg(l2->tm->mgr, ID_REMOVE, 0, l2->tei); + tei_l2(l2, MDL_REMOVE_REQ, 0); + list_del(&l2->ch.list); + l2->ch.ctrl(&l2->ch, CLOSE_CHANNEL, NULL); +} + +static void +tei_assign_req(struct FsmInst *fi, int event, void *arg) +{ + struct teimgr *tm = fi->userdata; + u_char *dp = arg; + + if (tm->l2->tei == GROUP_TEI) { + tm->tei_m.printdebug(&tm->tei_m, + "net tei assign request without tei"); + return; + } + tm->ri = ((unsigned int) *dp++ << 8); + tm->ri += *dp++; + if (*debug & DEBUG_L2_TEI) + tm->tei_m.printdebug(&tm->tei_m, + "net assign request ri %d teim %d", tm->ri, *dp); + put_tei_msg(tm->mgr, ID_ASSIGNED, tm->ri, tm->l2->tei); + mISDN_FsmChangeState(fi, ST_TEI_NOP); +} + +static void +tei_id_chk_req_net(struct FsmInst *fi, int event, void *arg) +{ + struct teimgr *tm = fi->userdata; + + if (*debug & DEBUG_L2_TEI) + tm->tei_m.printdebug(fi, "id check request for tei %d", + tm->l2->tei); + tm->rcnt = 0; + put_tei_msg(tm->mgr, ID_CHK_REQ, 0, tm->l2->tei); + mISDN_FsmChangeState(&tm->tei_m, ST_TEI_IDVERIFY); + mISDN_FsmAddTimer(&tm->timer, tm->tval, EV_TIMER, NULL, 2); + tm->nval = 2; +} + +static void +tei_id_chk_resp(struct FsmInst *fi, int event, void *arg) +{ + struct teimgr *tm = fi->userdata; + u_char *dp = arg; + int tei; + + tei = dp[3] >> 1; + if (*debug & DEBUG_L2_TEI) + tm->tei_m.printdebug(fi, "identity check resp tei %d", tei); + if (tei == tm->l2->tei) + tm->rcnt++; +} + +static void +tei_id_verify_net(struct FsmInst *fi, int event, void *arg) +{ + struct teimgr *tm = fi->userdata; + u_char *dp = arg; + int tei; + + tei = dp[3] >> 1; + if (*debug & DEBUG_L2_TEI) + tm->tei_m.printdebug(fi, "identity verify req tei %d/%d", + tei, tm->l2->tei); + if (tei == tm->l2->tei) + tei_id_chk_req_net(fi, event, arg); +} + +static void +tei_id_ver_tout_net(struct FsmInst *fi, int event, void *arg) +{ + struct teimgr *tm = fi->userdata; + + if (tm->rcnt == 1) { + if (*debug & DEBUG_L2_TEI) + tm->tei_m.printdebug(fi, + "check req for tei %d sucessful\n", tm->l2->tei); + mISDN_FsmChangeState(fi, ST_TEI_NOP); + } else if (tm->rcnt > 1) { + /* duplicate assignment; remove */ + tei_l2remove(tm->l2); + } else if (--tm->nval) { + if (*debug & DEBUG_L2_TEI) + tm->tei_m.printdebug(fi, + "id check req(%d) for tei %d", + 3 - tm->nval, tm->l2->tei); + put_tei_msg(tm->mgr, ID_CHK_REQ, 0, tm->l2->tei); + mISDN_FsmAddTimer(&tm->timer, tm->tval, EV_TIMER, NULL, 4); + } else { + tm->tei_m.printdebug(fi, "check req for tei %d failed", + tm->l2->tei); + mISDN_FsmChangeState(fi, ST_TEI_NOP); + tei_l2remove(tm->l2); + } +} + +static struct FsmNode TeiFnListNet[] = +{ + {ST_TEI_NOP, EV_ASSIGN_REQ, tei_assign_req}, + {ST_TEI_NOP, EV_VERIFY, tei_id_verify_net}, + {ST_TEI_NOP, EV_CHKREQ, tei_id_chk_req_net}, + {ST_TEI_IDVERIFY, EV_TIMER, tei_id_ver_tout_net}, + {ST_TEI_IDVERIFY, EV_CHKRESP, tei_id_chk_resp}, +}; + +static void +tei_ph_data_ind(struct teimgr *tm, u_int mt, u_char *dp, int len) +{ + if (test_bit(FLG_FIXED_TEI, &tm->l2->flag)) + return; + if (*debug & DEBUG_L2_TEI) + tm->tei_m.printdebug(&tm->tei_m, "tei handler mt %x", mt); + if (mt == ID_ASSIGNED) + mISDN_FsmEvent(&tm->tei_m, EV_ASSIGN, dp); + else if (mt == ID_DENIED) + mISDN_FsmEvent(&tm->tei_m, EV_DENIED, dp); + else if (mt == ID_CHK_REQ) + mISDN_FsmEvent(&tm->tei_m, EV_CHKREQ, dp); + else if (mt == ID_REMOVE) + mISDN_FsmEvent(&tm->tei_m, EV_REMOVE, dp); + else if (mt == ID_VERIFY) + mISDN_FsmEvent(&tm->tei_m, EV_VERIFY, dp); + else if (mt == ID_CHK_RES) + mISDN_FsmEvent(&tm->tei_m, EV_CHKRESP, dp); +} + +static struct layer2 * +create_new_tei(struct manager *mgr, int tei) +{ + u_long opt = 0; + u_long flags; + int id; + struct layer2 *l2; + + if (!mgr->up) + return NULL; + if (tei < 64) + test_and_set_bit(OPTION_L2_FIXEDTEI, &opt); + if (mgr->ch.st->dev->Dprotocols + & ((1 << ISDN_P_TE_E1) | (1 << ISDN_P_NT_E1))) + test_and_set_bit(OPTION_L2_PMX, &opt); + l2 = create_l2(mgr->up, ISDN_P_LAPD_NT, (u_int)opt, (u_long)tei); + if (!l2) { + printk(KERN_WARNING "%s:no memory for layer2\n", __func__); + return NULL; + } + l2->tm = kzalloc(sizeof(struct teimgr), GFP_KERNEL); + if (!l2->tm) { + kfree(l2); + printk(KERN_WARNING "%s:no memory for teimgr\n", __func__); + return NULL; + } + l2->tm->mgr = mgr; + l2->tm->l2 = l2; + l2->tm->tei_m.debug = *debug & DEBUG_L2_TEIFSM; + l2->tm->tei_m.userdata = l2->tm; + l2->tm->tei_m.printdebug = tei_debug; + l2->tm->tei_m.fsm = &teifsmn; + l2->tm->tei_m.state = ST_TEI_NOP; + l2->tm->tval = 2000; /* T202 2 sec */ + mISDN_FsmInitTimer(&l2->tm->tei_m, &l2->tm->timer); + write_lock_irqsave(&mgr->lock, flags); + id = get_free_id(mgr); + list_add_tail(&l2->list, &mgr->layer2); + write_unlock_irqrestore(&mgr->lock, flags); + if (id < 0) { + l2->ch.ctrl(&l2->ch, CLOSE_CHANNEL, NULL); + printk(KERN_WARNING "%s:no free id\n", __func__); + return NULL; + } else { + l2->ch.nr = id; + __add_layer2(&l2->ch, mgr->ch.st); + l2->ch.recv = mgr->ch.recv; + l2->ch.peer = mgr->ch.peer; + l2->ch.ctrl(&l2->ch, OPEN_CHANNEL, NULL); + } + return l2; +} + +static void +new_tei_req(struct manager *mgr, u_char *dp) +{ + int tei, ri; + struct layer2 *l2; + + ri = dp[0] << 8; + ri += dp[1]; + if (!mgr->up) + goto denied; + tei = get_free_tei(mgr); + if (tei < 0) { + printk(KERN_WARNING "%s:No free tei\n", __func__); + goto denied; + } + l2 = create_new_tei(mgr, tei); + if (!l2) + goto denied; + else + mISDN_FsmEvent(&l2->tm->tei_m, EV_ASSIGN_REQ, dp); + return; +denied: + put_tei_msg(mgr, ID_DENIED, ri, GROUP_TEI); +} + +static int +ph_data_ind(struct manager *mgr, struct sk_buff *skb) +{ + int ret = -EINVAL; + struct layer2 *l2; + u_long flags; + u_char mt; + + if (skb->len < 8) { + if (*debug & DEBUG_L2_TEI) + printk(KERN_DEBUG "%s: short mgr frame %d/8\n", + __func__, skb->len); + goto done; + } + if (*debug & DEBUG_L2_TEI) + + if ((skb->data[0] >> 2) != TEI_SAPI) /* not for us */ + goto done; + if (skb->data[0] & 1) /* EA0 formal error */ + goto done; + if (!(skb->data[1] & 1)) /* EA1 formal error */ + goto done; + if ((skb->data[1] >> 1) != GROUP_TEI) /* not for us */ + goto done; + if ((skb->data[2] & 0xef) != UI) /* not UI */ + goto done; + if (skb->data[3] != TEI_ENTITY_ID) /* not tei entity */ + goto done; + mt = skb->data[6]; + switch (mt) { + case ID_REQUEST: + case ID_CHK_RES: + case ID_VERIFY: + if (!test_bit(MGR_OPT_NETWORK, &mgr->options)) + goto done; + break; + case ID_ASSIGNED: + case ID_DENIED: + case ID_CHK_REQ: + case ID_REMOVE: + if (test_bit(MGR_OPT_NETWORK, &mgr->options)) + goto done; + break; + default: + goto done; + } + ret = 0; + if (mt == ID_REQUEST) { + new_tei_req(mgr, &skb->data[4]); + goto done; + } + read_lock_irqsave(&mgr->lock, flags); + list_for_each_entry(l2, &mgr->layer2, list) { + tei_ph_data_ind(l2->tm, mt, &skb->data[4], skb->len - 4); + } + read_unlock_irqrestore(&mgr->lock, flags); +done: + return ret; +} + +int +l2_tei(struct layer2 *l2, u_int cmd, u_long arg) +{ + struct teimgr *tm = l2->tm; + + if (test_bit(FLG_FIXED_TEI, &l2->flag)) + return 0; + if (*debug & DEBUG_L2_TEI) + printk(KERN_DEBUG "%s: cmd(%x)\n", __func__, cmd); + switch (cmd) { + case MDL_ASSIGN_IND: + mISDN_FsmEvent(&tm->tei_m, EV_IDREQ, NULL); + break; + case MDL_ERROR_IND: + if (test_bit(MGR_OPT_NETWORK, &tm->mgr->options)) + mISDN_FsmEvent(&tm->tei_m, EV_CHKREQ, &l2->tei); + if (test_bit(MGR_OPT_USER, &tm->mgr->options)) + mISDN_FsmEvent(&tm->tei_m, EV_VERIFY, NULL); + break; + case MDL_STATUS_UP_IND: + if (test_bit(MGR_OPT_NETWORK, &tm->mgr->options)) + mISDN_FsmEvent(&tm->mgr->deact, EV_ACTIVATE, NULL); + break; + case MDL_STATUS_DOWN_IND: + if (test_bit(MGR_OPT_NETWORK, &tm->mgr->options)) + mISDN_FsmEvent(&tm->mgr->deact, EV_DEACTIVATE, NULL); + break; + case MDL_STATUS_UI_IND: + if (test_bit(MGR_OPT_NETWORK, &tm->mgr->options)) + mISDN_FsmEvent(&tm->mgr->deact, EV_UI, NULL); + break; + } + return 0; +} + +void +release_tei(struct layer2 *l2) +{ + struct teimgr *tm = l2->tm; + u_long flags; + + mISDN_FsmDelTimer(&tm->timer, 1); + write_lock_irqsave(&tm->mgr->lock, flags); + list_del(&l2->list); + write_unlock_irqrestore(&tm->mgr->lock, flags); + l2->tm = NULL; + kfree(tm); +} + +static int +create_teimgr(struct manager *mgr, struct channel_req *crq) +{ + struct layer2 *l2; + u_long opt = 0; + u_long flags; + int id; + + if (*debug & DEBUG_L2_TEI) + printk(KERN_DEBUG "%s: %s proto(%x) adr(%d %d %d %d)\n", + __func__, mgr->ch.st->dev->name, crq->protocol, + crq->adr.dev, crq->adr.channel, crq->adr.sapi, + crq->adr.tei); + if (crq->adr.sapi != 0) /* not supported yet */ + return -EINVAL; + if (crq->adr.tei > GROUP_TEI) + return -EINVAL; + if (crq->adr.tei < 64) + test_and_set_bit(OPTION_L2_FIXEDTEI, &opt); + if (crq->adr.tei == 0) + test_and_set_bit(OPTION_L2_PTP, &opt); + if (test_bit(MGR_OPT_NETWORK, &mgr->options)) { + if (crq->protocol == ISDN_P_LAPD_TE) + return -EPROTONOSUPPORT; + if ((crq->adr.tei != 0) && (crq->adr.tei != 127)) + return -EINVAL; + if (mgr->up) { + printk(KERN_WARNING + "%s: only one network manager is allowed\n", + __func__); + return -EBUSY; + } + } else if (test_bit(MGR_OPT_USER, &mgr->options)) { + if (crq->protocol == ISDN_P_LAPD_NT) + return -EPROTONOSUPPORT; + if ((crq->adr.tei >= 64) && (crq->adr.tei < GROUP_TEI)) + return -EINVAL; /* dyn tei */ + } else { + if (crq->protocol == ISDN_P_LAPD_NT) + test_and_set_bit(MGR_OPT_NETWORK, &mgr->options); + if (crq->protocol == ISDN_P_LAPD_TE) + test_and_set_bit(MGR_OPT_USER, &mgr->options); + } + if (mgr->ch.st->dev->Dprotocols + & ((1 << ISDN_P_TE_E1) | (1 << ISDN_P_NT_E1))) + test_and_set_bit(OPTION_L2_PMX, &opt); + if ((crq->protocol == ISDN_P_LAPD_NT) && (crq->adr.tei == 127)) { + mgr->up = crq->ch; + id = DL_INFO_L2_CONNECT; + teiup_create(mgr, DL_INFORMATION_IND, sizeof(id), &id); + crq->ch = NULL; + if (!list_empty(&mgr->layer2)) { + read_lock_irqsave(&mgr->lock, flags); + list_for_each_entry(l2, &mgr->layer2, list) { + l2->up = mgr->up; + l2->ch.ctrl(&l2->ch, OPEN_CHANNEL, NULL); + } + read_unlock_irqrestore(&mgr->lock, flags); + } + return 0; + } + l2 = create_l2(crq->ch, crq->protocol, (u_int)opt, + (u_long)crq->adr.tei); + if (!l2) + return -ENOMEM; + l2->tm = kzalloc(sizeof(struct teimgr), GFP_KERNEL); + if (!l2->tm) { + kfree(l2); + printk(KERN_ERR "kmalloc teimgr failed\n"); + return -ENOMEM; + } + l2->tm->mgr = mgr; + l2->tm->l2 = l2; + l2->tm->tei_m.debug = *debug & DEBUG_L2_TEIFSM; + l2->tm->tei_m.userdata = l2->tm; + l2->tm->tei_m.printdebug = tei_debug; + if (crq->protocol == ISDN_P_LAPD_TE) { + l2->tm->tei_m.fsm = &teifsmu; + l2->tm->tei_m.state = ST_TEI_NOP; + l2->tm->tval = 1000; /* T201 1 sec */ + } else { + l2->tm->tei_m.fsm = &teifsmn; + l2->tm->tei_m.state = ST_TEI_NOP; + l2->tm->tval = 2000; /* T202 2 sec */ + } + mISDN_FsmInitTimer(&l2->tm->tei_m, &l2->tm->timer); + write_lock_irqsave(&mgr->lock, flags); + id = get_free_id(mgr); + list_add_tail(&l2->list, &mgr->layer2); + write_unlock_irqrestore(&mgr->lock, flags); + if (id < 0) { + l2->ch.ctrl(&l2->ch, CLOSE_CHANNEL, NULL); + } else { + l2->ch.nr = id; + l2->up->nr = id; + crq->ch = &l2->ch; + id = 0; + } + return id; +} + +static int +mgr_send(struct mISDNchannel *ch, struct sk_buff *skb) +{ + struct manager *mgr; + struct mISDNhead *hh = mISDN_HEAD_P(skb); + int ret = -EINVAL; + + mgr = container_of(ch, struct manager, ch); + if (*debug & DEBUG_L2_RECV) + printk(KERN_DEBUG "%s: prim(%x) id(%x)\n", + __func__, hh->prim, hh->id); + switch (hh->prim) { + case PH_DATA_IND: + mISDN_FsmEvent(&mgr->deact, EV_UI, NULL); + ret = ph_data_ind(mgr, skb); + break; + case PH_DATA_CNF: + do_ack(mgr, hh->id); + ret = 0; + break; + case PH_ACTIVATE_IND: + test_and_set_bit(MGR_PH_ACTIVE, &mgr->options); + mISDN_FsmEvent(&mgr->deact, EV_ACTIVATE_IND, NULL); + do_send(mgr); + ret = 0; + break; + case PH_DEACTIVATE_IND: + test_and_clear_bit(MGR_PH_ACTIVE, &mgr->options); + mISDN_FsmEvent(&mgr->deact, EV_DEACTIVATE_IND, NULL); + ret = 0; + break; + case DL_UNITDATA_REQ: + return dl_unit_data(mgr, skb); + } + if (!ret) + dev_kfree_skb(skb); + return ret; +} + +static int +free_teimanager(struct manager *mgr) +{ + struct layer2 *l2, *nl2; + + if (test_bit(MGR_OPT_NETWORK, &mgr->options)) { + /* not locked lock is taken in release tei */ + mgr->up = NULL; + if (test_bit(OPTION_L2_CLEANUP, &mgr->options)) { + list_for_each_entry_safe(l2, nl2, &mgr->layer2, list) { + put_tei_msg(mgr, ID_REMOVE, 0, l2->tei); + mutex_lock(&mgr->ch.st->lmutex); + list_del(&l2->ch.list); + mutex_unlock(&mgr->ch.st->lmutex); + l2->ch.ctrl(&l2->ch, CLOSE_CHANNEL, NULL); + } + test_and_clear_bit(MGR_OPT_NETWORK, &mgr->options); + } else { + list_for_each_entry_safe(l2, nl2, &mgr->layer2, list) { + l2->up = NULL; + } + } + } + if (test_bit(MGR_OPT_USER, &mgr->options)) { + if (list_empty(&mgr->layer2)) + test_and_clear_bit(MGR_OPT_USER, &mgr->options); + } + mgr->ch.st->dev->D.ctrl(&mgr->ch.st->dev->D, CLOSE_CHANNEL, NULL); + return 0; +} + +static int +ctrl_teimanager(struct manager *mgr, void *arg) +{ + /* currently we only have one option */ + int clean = *((int *)arg); + + if (clean) + test_and_set_bit(OPTION_L2_CLEANUP, &mgr->options); + else + test_and_clear_bit(OPTION_L2_CLEANUP, &mgr->options); + return 0; +} + +/* This function does create a L2 for fixed TEI in NT Mode */ +static int +check_data(struct manager *mgr, struct sk_buff *skb) +{ + struct mISDNhead *hh = mISDN_HEAD_P(skb); + int ret, tei; + struct layer2 *l2; + + if (*debug & DEBUG_L2_CTRL) + printk(KERN_DEBUG "%s: prim(%x) id(%x)\n", + __func__, hh->prim, hh->id); + if (test_bit(MGR_OPT_USER, &mgr->options)) + return -ENOTCONN; + if (hh->prim != PH_DATA_IND) + return -ENOTCONN; + if (skb->len != 3) + return -ENOTCONN; + if (skb->data[0] != 0) + /* only SAPI 0 command */ + return -ENOTCONN; + if (!(skb->data[1] & 1)) /* invalid EA1 */ + return -EINVAL; + tei = skb->data[1] >> 0; + if (tei > 63) /* not a fixed tei */ + return -ENOTCONN; + if ((skb->data[2] & ~0x10) != SABME) + return -ENOTCONN; + /* We got a SABME for a fixed TEI */ + l2 = create_new_tei(mgr, tei); + if (!l2) + return -ENOMEM; + ret = l2->ch.send(&l2->ch, skb); + return ret; +} + +void +delete_teimanager(struct mISDNchannel *ch) +{ + struct manager *mgr; + struct layer2 *l2, *nl2; + + mgr = container_of(ch, struct manager, ch); + /* not locked lock is taken in release tei */ + list_for_each_entry_safe(l2, nl2, &mgr->layer2, list) { + mutex_lock(&mgr->ch.st->lmutex); + list_del(&l2->ch.list); + mutex_unlock(&mgr->ch.st->lmutex); + l2->ch.ctrl(&l2->ch, CLOSE_CHANNEL, NULL); + } + list_del(&mgr->ch.list); + list_del(&mgr->bcast.list); + skb_queue_purge(&mgr->sendq); + kfree(mgr); +} + +static int +mgr_ctrl(struct mISDNchannel *ch, u_int cmd, void *arg) +{ + struct manager *mgr; + int ret = -EINVAL; + + mgr = container_of(ch, struct manager, ch); + if (*debug & DEBUG_L2_CTRL) + printk(KERN_DEBUG "%s(%x, %p)\n", __func__, cmd, arg); + switch (cmd) { + case OPEN_CHANNEL: + ret = create_teimgr(mgr, arg); + break; + case CLOSE_CHANNEL: + ret = free_teimanager(mgr); + break; + case CONTROL_CHANNEL: + ret = ctrl_teimanager(mgr, arg); + break; + case CHECK_DATA: + ret = check_data(mgr, arg); + break; + } + return ret; +} + +static int +mgr_bcast(struct mISDNchannel *ch, struct sk_buff *skb) +{ + struct manager *mgr = container_of(ch, struct manager, bcast); + struct mISDNhead *hh = mISDN_HEAD_P(skb); + struct sk_buff *cskb = NULL; + struct layer2 *l2; + u_long flags; + int ret; + + read_lock_irqsave(&mgr->lock, flags); + list_for_each_entry(l2, &mgr->layer2, list) { + if ((hh->id & MISDN_ID_SAPI_MASK) == + (l2->ch.addr & MISDN_ID_SAPI_MASK)) { + if (list_is_last(&l2->list, &mgr->layer2)) { + cskb = skb; + skb = NULL; + } else { + if (!cskb) + cskb = skb_copy(skb, GFP_KERNEL); + } + if (cskb) { + ret = l2->ch.send(&l2->ch, cskb); + if (ret) { + if (*debug & DEBUG_SEND_ERR) + printk(KERN_DEBUG + "%s ch%d prim(%x) addr(%x)" + " err %d\n", + __func__, l2->ch.nr, + hh->prim, l2->ch.addr, ret); + } else + cskb = NULL; + } else { + printk(KERN_WARNING "%s ch%d addr %x no mem\n", + __func__, ch->nr, ch->addr); + goto out; + } + } + } +out: + read_unlock_irqrestore(&mgr->lock, flags); + if (cskb) + dev_kfree_skb(cskb); + if (skb) + dev_kfree_skb(skb); + return 0; +} + +static int +mgr_bcast_ctrl(struct mISDNchannel *ch, u_int cmd, void *arg) +{ + + return -EINVAL; +} + +int +create_teimanager(struct mISDNdevice *dev) +{ + struct manager *mgr; + + mgr = kzalloc(sizeof(struct manager), GFP_KERNEL); + if (!mgr) + return -ENOMEM; + INIT_LIST_HEAD(&mgr->layer2); + mgr->lock = __RW_LOCK_UNLOCKED(mgr->lock); + skb_queue_head_init(&mgr->sendq); + mgr->nextid = 1; + mgr->lastid = MISDN_ID_NONE; + mgr->ch.send = mgr_send; + mgr->ch.ctrl = mgr_ctrl; + mgr->ch.st = dev->D.st; + set_channel_address(&mgr->ch, TEI_SAPI, GROUP_TEI); + add_layer2(&mgr->ch, dev->D.st); + mgr->bcast.send = mgr_bcast; + mgr->bcast.ctrl = mgr_bcast_ctrl; + mgr->bcast.st = dev->D.st; + set_channel_address(&mgr->bcast, 0, GROUP_TEI); + add_layer2(&mgr->bcast, dev->D.st); + mgr->deact.debug = *debug & DEBUG_MANAGER; + mgr->deact.userdata = mgr; + mgr->deact.printdebug = da_debug; + mgr->deact.fsm = &deactfsm; + mgr->deact.state = ST_L1_DEACT; + mISDN_FsmInitTimer(&mgr->deact, &mgr->datimer); + dev->teimgr = &mgr->ch; + return 0; +} + +int TEIInit(u_int *deb) +{ + debug = deb; + teifsmu.state_count = TEI_STATE_COUNT; + teifsmu.event_count = TEI_EVENT_COUNT; + teifsmu.strEvent = strTeiEvent; + teifsmu.strState = strTeiState; + mISDN_FsmNew(&teifsmu, TeiFnListUser, ARRAY_SIZE(TeiFnListUser)); + teifsmn.state_count = TEI_STATE_COUNT; + teifsmn.event_count = TEI_EVENT_COUNT; + teifsmn.strEvent = strTeiEvent; + teifsmn.strState = strTeiState; + mISDN_FsmNew(&teifsmn, TeiFnListNet, ARRAY_SIZE(TeiFnListNet)); + deactfsm.state_count = DEACT_STATE_COUNT; + deactfsm.event_count = DEACT_EVENT_COUNT; + deactfsm.strEvent = strDeactEvent; + deactfsm.strState = strDeactState; + mISDN_FsmNew(&deactfsm, DeactFnList, ARRAY_SIZE(DeactFnList)); + return 0; +} + +void TEIFree(void) +{ + mISDN_FsmFree(&teifsmu); + mISDN_FsmFree(&teifsmn); + mISDN_FsmFree(&deactfsm); +} diff --git a/drivers/isdn/mISDN/timerdev.c b/drivers/isdn/mISDN/timerdev.c new file mode 100644 index 0000000..b5fabc7 --- /dev/null +++ b/drivers/isdn/mISDN/timerdev.c @@ -0,0 +1,301 @@ +/* + * + * general timer device for using in ISDN stacks + * + * Author Karsten Keil <kkeil@novell.com> + * + * Copyright 2008 by Karsten Keil <kkeil@novell.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <linux/poll.h> +#include <linux/vmalloc.h> +#include <linux/timer.h> +#include <linux/miscdevice.h> +#include <linux/module.h> +#include <linux/mISDNif.h> + +static int *debug; + + +struct mISDNtimerdev { + int next_id; + struct list_head pending; + struct list_head expired; + wait_queue_head_t wait; + u_int work; + spinlock_t lock; /* protect lists */ +}; + +struct mISDNtimer { + struct list_head list; + struct mISDNtimerdev *dev; + struct timer_list tl; + int id; +}; + +static int +mISDN_open(struct inode *ino, struct file *filep) +{ + struct mISDNtimerdev *dev; + + if (*debug & DEBUG_TIMER) + printk(KERN_DEBUG "%s(%p,%p)\n", __func__, ino, filep); + dev = kmalloc(sizeof(struct mISDNtimerdev) , GFP_KERNEL); + if (!dev) + return -ENOMEM; + dev->next_id = 1; + INIT_LIST_HEAD(&dev->pending); + INIT_LIST_HEAD(&dev->expired); + spin_lock_init(&dev->lock); + dev->work = 0; + init_waitqueue_head(&dev->wait); + filep->private_data = dev; + __module_get(THIS_MODULE); + return 0; +} + +static int +mISDN_close(struct inode *ino, struct file *filep) +{ + struct mISDNtimerdev *dev = filep->private_data; + struct mISDNtimer *timer, *next; + + if (*debug & DEBUG_TIMER) + printk(KERN_DEBUG "%s(%p,%p)\n", __func__, ino, filep); + list_for_each_entry_safe(timer, next, &dev->pending, list) { + del_timer(&timer->tl); + kfree(timer); + } + list_for_each_entry_safe(timer, next, &dev->expired, list) { + kfree(timer); + } + kfree(dev); + module_put(THIS_MODULE); + return 0; +} + +static ssize_t +mISDN_read(struct file *filep, char *buf, size_t count, loff_t *off) +{ + struct mISDNtimerdev *dev = filep->private_data; + struct mISDNtimer *timer; + u_long flags; + int ret = 0; + + if (*debug & DEBUG_TIMER) + printk(KERN_DEBUG "%s(%p, %p, %d, %p)\n", __func__, + filep, buf, (int)count, off); + if (*off != filep->f_pos) + return -ESPIPE; + + if (list_empty(&dev->expired) && (dev->work == 0)) { + if (filep->f_flags & O_NONBLOCK) + return -EAGAIN; + wait_event_interruptible(dev->wait, (dev->work || + !list_empty(&dev->expired))); + if (signal_pending(current)) + return -ERESTARTSYS; + } + if (count < sizeof(int)) + return -ENOSPC; + if (dev->work) + dev->work = 0; + if (!list_empty(&dev->expired)) { + spin_lock_irqsave(&dev->lock, flags); + timer = (struct mISDNtimer *)dev->expired.next; + list_del(&timer->list); + spin_unlock_irqrestore(&dev->lock, flags); + if (put_user(timer->id, (int *)buf)) + ret = -EFAULT; + else + ret = sizeof(int); + kfree(timer); + } + return ret; +} + +static loff_t +mISDN_llseek(struct file *filep, loff_t offset, int orig) +{ + return -ESPIPE; +} + +static ssize_t +mISDN_write(struct file *filep, const char *buf, size_t count, loff_t *off) +{ + return -EOPNOTSUPP; +} + +static unsigned int +mISDN_poll(struct file *filep, poll_table *wait) +{ + struct mISDNtimerdev *dev = filep->private_data; + unsigned int mask = POLLERR; + + if (*debug & DEBUG_TIMER) + printk(KERN_DEBUG "%s(%p, %p)\n", __func__, filep, wait); + if (dev) { + poll_wait(filep, &dev->wait, wait); + mask = 0; + if (dev->work || !list_empty(&dev->expired)) + mask |= (POLLIN | POLLRDNORM); + if (*debug & DEBUG_TIMER) + printk(KERN_DEBUG "%s work(%d) empty(%d)\n", __func__, + dev->work, list_empty(&dev->expired)); + } + return mask; +} + +static void +dev_expire_timer(struct mISDNtimer *timer) +{ + u_long flags; + + spin_lock_irqsave(&timer->dev->lock, flags); + list_del(&timer->list); + list_add_tail(&timer->list, &timer->dev->expired); + spin_unlock_irqrestore(&timer->dev->lock, flags); + wake_up_interruptible(&timer->dev->wait); +} + +static int +misdn_add_timer(struct mISDNtimerdev *dev, int timeout) +{ + int id; + u_long flags; + struct mISDNtimer *timer; + + if (!timeout) { + dev->work = 1; + wake_up_interruptible(&dev->wait); + id = 0; + } else { + timer = kzalloc(sizeof(struct mISDNtimer), GFP_KERNEL); + if (!timer) + return -ENOMEM; + spin_lock_irqsave(&dev->lock, flags); + timer->id = dev->next_id++; + if (dev->next_id < 0) + dev->next_id = 1; + list_add_tail(&timer->list, &dev->pending); + spin_unlock_irqrestore(&dev->lock, flags); + timer->dev = dev; + timer->tl.data = (long)timer; + timer->tl.function = (void *) dev_expire_timer; + init_timer(&timer->tl); + timer->tl.expires = jiffies + ((HZ * (u_long)timeout) / 1000); + add_timer(&timer->tl); + id = timer->id; + } + return id; +} + +static int +misdn_del_timer(struct mISDNtimerdev *dev, int id) +{ + u_long flags; + struct mISDNtimer *timer; + int ret = 0; + + spin_lock_irqsave(&dev->lock, flags); + list_for_each_entry(timer, &dev->pending, list) { + if (timer->id == id) { + list_del_init(&timer->list); + del_timer(&timer->tl); + ret = timer->id; + kfree(timer); + goto unlock; + } + } +unlock: + spin_unlock_irqrestore(&dev->lock, flags); + return ret; +} + +static int +mISDN_ioctl(struct inode *inode, struct file *filep, unsigned int cmd, + unsigned long arg) +{ + struct mISDNtimerdev *dev = filep->private_data; + int id, tout, ret = 0; + + + if (*debug & DEBUG_TIMER) + printk(KERN_DEBUG "%s(%p, %x, %lx)\n", __func__, + filep, cmd, arg); + switch (cmd) { + case IMADDTIMER: + if (get_user(tout, (int __user *)arg)) { + ret = -EFAULT; + break; + } + id = misdn_add_timer(dev, tout); + if (*debug & DEBUG_TIMER) + printk(KERN_DEBUG "%s add %d id %d\n", __func__, + tout, id); + if (id < 0) { + ret = id; + break; + } + if (put_user(id, (int __user *)arg)) + ret = -EFAULT; + break; + case IMDELTIMER: + if (get_user(id, (int __user *)arg)) { + ret = -EFAULT; + break; + } + if (*debug & DEBUG_TIMER) + printk(KERN_DEBUG "%s del id %d\n", __func__, id); + id = misdn_del_timer(dev, id); + if (put_user(id, (int __user *)arg)) + ret = -EFAULT; + break; + default: + ret = -EINVAL; + } + return ret; +} + +static struct file_operations mISDN_fops = { + .llseek = mISDN_llseek, + .read = mISDN_read, + .write = mISDN_write, + .poll = mISDN_poll, + .ioctl = mISDN_ioctl, + .open = mISDN_open, + .release = mISDN_close, +}; + +static struct miscdevice mISDNtimer = { + .minor = MISC_DYNAMIC_MINOR, + .name = "mISDNtimer", + .fops = &mISDN_fops, +}; + +int +mISDN_inittimer(int *deb) +{ + int err; + + debug = deb; + err = misc_register(&mISDNtimer); + if (err) + printk(KERN_WARNING "mISDN: Could not register timer device\n"); + return err; +} + +void mISDN_timer_cleanup(void) +{ + misc_deregister(&mISDNtimer); +} diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig index 86a369b..9556262 100644 --- a/drivers/leds/Kconfig +++ b/drivers/leds/Kconfig @@ -103,6 +103,14 @@ config LEDS_HP6XX This option enables led support for the handheld HP Jornada 620/660/680/690. +config LEDS_PCA9532 + tristate "LED driver for PCA9532 dimmer" + depends on LEDS_CLASS && I2C && INPUT && EXPERIMENTAL + help + This option enables support for NXP pca9532 + led controller. It is generally only usefull + as a platform driver + config LEDS_GPIO tristate "LED Support for GPIO connected LEDs" depends on LEDS_CLASS && GENERIC_GPIO @@ -147,6 +155,14 @@ config LEDS_CLEVO_MAIL To compile this driver as a module, choose M here: the module will be called leds-clevo-mail. +config LEDS_PCA955X + tristate "LED Support for PCA955x I2C chips" + depends on LEDS_CLASS && I2C + help + This option enables support for LEDs connected to PCA955x + LED driver chips accessed via the I2C bus. Supported + devices include PCA9550, PCA9551, PCA9552, and PCA9553. + comment "LED Triggers" config LEDS_TRIGGERS diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile index 973d626..ff7982b 100644 --- a/drivers/leds/Makefile +++ b/drivers/leds/Makefile @@ -16,11 +16,13 @@ obj-$(CONFIG_LEDS_WRAP) += leds-wrap.o obj-$(CONFIG_LEDS_H1940) += leds-h1940.o obj-$(CONFIG_LEDS_COBALT_QUBE) += leds-cobalt-qube.o obj-$(CONFIG_LEDS_COBALT_RAQ) += leds-cobalt-raq.o +obj-$(CONFIG_LEDS_PCA9532) += leds-pca9532.o obj-$(CONFIG_LEDS_GPIO) += leds-gpio.o obj-$(CONFIG_LEDS_CM_X270) += leds-cm-x270.o obj-$(CONFIG_LEDS_CLEVO_MAIL) += leds-clevo-mail.o obj-$(CONFIG_LEDS_HP6XX) += leds-hp6xx.o obj-$(CONFIG_LEDS_FSG) += leds-fsg.o +obj-$(CONFIG_LEDS_PCA955X) += leds-pca955x.o # LED Triggers obj-$(CONFIG_LEDS_TRIGGER_TIMER) += ledtrig-timer.o diff --git a/drivers/leds/led-triggers.c b/drivers/leds/led-triggers.c index 0f242b3..f910eaf 100644 --- a/drivers/leds/led-triggers.c +++ b/drivers/leds/led-triggers.c @@ -111,16 +111,17 @@ void led_trigger_set(struct led_classdev *led_cdev, struct led_trigger *trigger) flags); if (led_cdev->trigger->deactivate) led_cdev->trigger->deactivate(led_cdev); + led_cdev->trigger = NULL; led_set_brightness(led_cdev, LED_OFF); } if (trigger) { write_lock_irqsave(&trigger->leddev_list_lock, flags); list_add_tail(&led_cdev->trig_list, &trigger->led_cdevs); write_unlock_irqrestore(&trigger->leddev_list_lock, flags); + led_cdev->trigger = trigger; if (trigger->activate) trigger->activate(led_cdev); } - led_cdev->trigger = trigger; } EXPORT_SYMBOL_GPL(led_trigger_set); diff --git a/drivers/leds/leds-atmel-pwm.c b/drivers/leds/leds-atmel-pwm.c index 28db6c1..52297c3 100644 --- a/drivers/leds/leds-atmel-pwm.c +++ b/drivers/leds/leds-atmel-pwm.c @@ -37,7 +37,7 @@ static int __init pwmled_probe(struct platform_device *pdev) { const struct gpio_led_platform_data *pdata; struct pwmled *leds; - unsigned i; + int i; int status; pdata = pdev->dev.platform_data; diff --git a/drivers/leds/leds-h1940.c b/drivers/leds/leds-h1940.c index bcec422..73c7050 100644 --- a/drivers/leds/leds-h1940.c +++ b/drivers/leds/leds-h1940.c @@ -23,7 +23,8 @@ /* * Green led. */ -void h1940_greenled_set(struct led_classdev *led_dev, enum led_brightness value) +static void h1940_greenled_set(struct led_classdev *led_dev, + enum led_brightness value) { switch (value) { case LED_HALF: @@ -52,7 +53,8 @@ static struct led_classdev h1940_greenled = { /* * Red led. */ -void h1940_redled_set(struct led_classdev *led_dev, enum led_brightness value) +static void h1940_redled_set(struct led_classdev *led_dev, + enum led_brightness value) { switch (value) { case LED_HALF: @@ -82,7 +84,8 @@ static struct led_classdev h1940_redled = { * Blue led. * (it can only be blue flashing led) */ -void h1940_blueled_set(struct led_classdev *led_dev, enum led_brightness value) +static void h1940_blueled_set(struct led_classdev *led_dev, + enum led_brightness value) { if (value) { /* flashing Blue */ diff --git a/drivers/leds/leds-pca9532.c b/drivers/leds/leds-pca9532.c new file mode 100644 index 0000000..4064d4f --- /dev/null +++ b/drivers/leds/leds-pca9532.c @@ -0,0 +1,337 @@ +/* + * pca9532.c - 16-bit Led dimmer + * + * Copyright (C) 2008 Riku Voipio <riku.voipio@movial.fi> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * Datasheet: http://www.nxp.com/acrobat/datasheets/PCA9532_3.pdf + * + */ + +#include <linux/module.h> +#include <linux/i2c.h> +#include <linux/leds.h> +#include <linux/input.h> +#include <linux/mutex.h> +#include <linux/leds-pca9532.h> + +static const unsigned short normal_i2c[] = { /*0x60,*/ I2C_CLIENT_END}; +I2C_CLIENT_INSMOD_1(pca9532); + +#define PCA9532_REG_PSC(i) (0x2+(i)*2) +#define PCA9532_REG_PWM(i) (0x3+(i)*2) +#define PCA9532_REG_LS0 0x6 +#define LED_REG(led) ((led>>2)+PCA9532_REG_LS0) +#define LED_NUM(led) (led & 0x3) + +#define ldev_to_led(c) container_of(c, struct pca9532_led, ldev) + +struct pca9532_data { + struct i2c_client *client; + struct pca9532_led leds[16]; + struct mutex update_lock; + struct input_dev *idev; + u8 pwm[2]; + u8 psc[2]; +}; + +static int pca9532_probe(struct i2c_client *client, + const struct i2c_device_id *id); +static int pca9532_remove(struct i2c_client *client); + +static const struct i2c_device_id pca9532_id[] = { + { "pca9532", 0 }, + { } +}; + +MODULE_DEVICE_TABLE(i2c, pca9532_id); + +static struct i2c_driver pca9532_driver = { + .driver = { + .name = "pca9532", + }, + .probe = pca9532_probe, + .remove = pca9532_remove, + .id_table = pca9532_id, +}; + +/* We have two pwm/blinkers, but 16 possible leds to drive. Additionaly, + * the clever Thecus people are using one pwm to drive the beeper. So, + * as a compromise we average one pwm to the values requested by all + * leds that are not ON/OFF. + * */ +static int pca9532_setpwm(struct i2c_client *client, int pwm, int blink, + enum led_brightness value) +{ + int a = 0, b = 0, i = 0; + struct pca9532_data *data = i2c_get_clientdata(client); + for (i = 0; i < 16; i++) { + if (data->leds[i].type == PCA9532_TYPE_LED && + data->leds[i].state == PCA9532_PWM0+pwm) { + a++; + b += data->leds[i].ldev.brightness; + } + } + if (a == 0) { + dev_err(&client->dev, + "fear of division by zero %d/%d, wanted %d\n", + b, a, value); + return -EINVAL; + } + b = b/a; + if (b > 0xFF) + return -EINVAL; + mutex_lock(&data->update_lock); + data->pwm[pwm] = b; + i2c_smbus_write_byte_data(client, PCA9532_REG_PWM(pwm), + data->pwm[pwm]); + data->psc[pwm] = blink; + i2c_smbus_write_byte_data(client, PCA9532_REG_PSC(pwm), + data->psc[pwm]); + mutex_unlock(&data->update_lock); + return 0; +} + +/* Set LED routing */ +static void pca9532_setled(struct pca9532_led *led) +{ + struct i2c_client *client = led->client; + struct pca9532_data *data = i2c_get_clientdata(client); + char reg; + + mutex_lock(&data->update_lock); + reg = i2c_smbus_read_byte_data(client, LED_REG(led->id)); + /* zero led bits */ + reg = reg & ~(0x3<<LED_NUM(led->id)*2); + /* set the new value */ + reg = reg | (led->state << LED_NUM(led->id)*2); + i2c_smbus_write_byte_data(client, LED_REG(led->id), reg); + mutex_unlock(&data->update_lock); +} + +static void pca9532_set_brightness(struct led_classdev *led_cdev, + enum led_brightness value) +{ + int err = 0; + struct pca9532_led *led = ldev_to_led(led_cdev); + + if (value == LED_OFF) + led->state = PCA9532_OFF; + else if (value == LED_FULL) + led->state = PCA9532_ON; + else { + led->state = PCA9532_PWM0; /* Thecus: hardcode one pwm */ + err = pca9532_setpwm(led->client, 0, 0, value); + if (err) + return; /* XXX: led api doesn't allow error code? */ + } + pca9532_setled(led); +} + +static int pca9532_set_blink(struct led_classdev *led_cdev, + unsigned long *delay_on, unsigned long *delay_off) +{ + struct pca9532_led *led = ldev_to_led(led_cdev); + struct i2c_client *client = led->client; + int psc; + + if (*delay_on == 0 && *delay_off == 0) { + /* led subsystem ask us for a blink rate */ + *delay_on = 1000; + *delay_off = 1000; + } + if (*delay_on != *delay_off || *delay_on > 1690 || *delay_on < 6) + return -EINVAL; + + /* Thecus specific: only use PSC/PWM 0 */ + psc = (*delay_on * 152-1)/1000; + return pca9532_setpwm(client, 0, psc, led_cdev->brightness); +} + +int pca9532_event(struct input_dev *dev, unsigned int type, unsigned int code, + int value) +{ + struct pca9532_data *data = input_get_drvdata(dev); + + if (type != EV_SND && (code != SND_BELL || code != SND_TONE)) + return -1; + + /* XXX: allow different kind of beeps with psc/pwm modifications */ + if (value > 1 && value < 32767) + data->pwm[1] = 127; + else + data->pwm[1] = 0; + + dev_info(&dev->dev, "setting beep to %d \n", data->pwm[1]); + mutex_lock(&data->update_lock); + i2c_smbus_write_byte_data(data->client, PCA9532_REG_PWM(1), + data->pwm[1]); + mutex_unlock(&data->update_lock); + + return 0; +} + +static int pca9532_configure(struct i2c_client *client, + struct pca9532_data *data, struct pca9532_platform_data *pdata) +{ + int i, err = 0; + + for (i = 0; i < 2; i++) { + data->pwm[i] = pdata->pwm[i]; + data->psc[i] = pdata->psc[i]; + i2c_smbus_write_byte_data(client, PCA9532_REG_PWM(i), + data->pwm[i]); + i2c_smbus_write_byte_data(client, PCA9532_REG_PSC(i), + data->psc[i]); + } + + for (i = 0; i < 16; i++) { + struct pca9532_led *led = &data->leds[i]; + struct pca9532_led *pled = &pdata->leds[i]; + led->client = client; + led->id = i; + led->type = pled->type; + switch (led->type) { + case PCA9532_TYPE_NONE: + break; + case PCA9532_TYPE_LED: + led->state = pled->state; + led->name = pled->name; + led->ldev.name = led->name; + led->ldev.brightness = LED_OFF; + led->ldev.brightness_set = pca9532_set_brightness; + led->ldev.blink_set = pca9532_set_blink; + if (led_classdev_register(&client->dev, + &led->ldev) < 0) { + dev_err(&client->dev, + "couldn't register LED %s\n", + led->name); + goto exit; + } + pca9532_setled(led); + break; + case PCA9532_TYPE_N2100_BEEP: + BUG_ON(data->idev); + led->state = PCA9532_PWM1; + pca9532_setled(led); + data->idev = input_allocate_device(); + if (data->idev == NULL) { + err = -ENOMEM; + goto exit; + } + data->idev->name = pled->name; + data->idev->phys = "i2c/pca9532"; + data->idev->id.bustype = BUS_HOST; + data->idev->id.vendor = 0x001f; + data->idev->id.product = 0x0001; + data->idev->id.version = 0x0100; + data->idev->evbit[0] = BIT_MASK(EV_SND); + data->idev->sndbit[0] = BIT_MASK(SND_BELL) | + BIT_MASK(SND_TONE); + data->idev->event = pca9532_event; + input_set_drvdata(data->idev, data); + err = input_register_device(data->idev); + if (err) { + input_free_device(data->idev); + data->idev = NULL; + goto exit; + } + break; + } + } + return 0; + +exit: + if (i > 0) + for (i = i - 1; i >= 0; i--) + switch (data->leds[i].type) { + case PCA9532_TYPE_NONE: + break; + case PCA9532_TYPE_LED: + led_classdev_unregister(&data->leds[i].ldev); + break; + case PCA9532_TYPE_N2100_BEEP: + if (data->idev != NULL) { + input_unregister_device(data->idev); + input_free_device(data->idev); + data->idev = NULL; + } + break; + } + + return err; + +} + +static int pca9532_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct pca9532_data *data = i2c_get_clientdata(client); + struct pca9532_platform_data *pca9532_pdata = client->dev.platform_data; + + if (!i2c_check_functionality(client->adapter, + I2C_FUNC_SMBUS_BYTE_DATA)) + return -EIO; + + data = kzalloc(sizeof(struct pca9532_data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + dev_info(&client->dev, "setting platform data\n"); + i2c_set_clientdata(client, data); + data->client = client; + mutex_init(&data->update_lock); + + if (pca9532_pdata == NULL) + return -EIO; + + pca9532_configure(client, data, pca9532_pdata); + return 0; + +} + +static int pca9532_remove(struct i2c_client *client) +{ + struct pca9532_data *data = i2c_get_clientdata(client); + int i; + for (i = 0; i < 16; i++) + switch (data->leds[i].type) { + case PCA9532_TYPE_NONE: + break; + case PCA9532_TYPE_LED: + led_classdev_unregister(&data->leds[i].ldev); + break; + case PCA9532_TYPE_N2100_BEEP: + if (data->idev != NULL) { + input_unregister_device(data->idev); + input_free_device(data->idev); + data->idev = NULL; + } + break; + } + + kfree(data); + i2c_set_clientdata(client, NULL); + return 0; +} + +static int __init pca9532_init(void) +{ + return i2c_add_driver(&pca9532_driver); +} + +static void __exit pca9532_exit(void) +{ + i2c_del_driver(&pca9532_driver); +} + +MODULE_AUTHOR("Riku Voipio <riku.voipio@movial.fi>"); +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("PCA 9532 LED dimmer"); + +module_init(pca9532_init); +module_exit(pca9532_exit); + diff --git a/drivers/leds/leds-pca955x.c b/drivers/leds/leds-pca955x.c new file mode 100644 index 0000000..146c069 --- /dev/null +++ b/drivers/leds/leds-pca955x.c @@ -0,0 +1,384 @@ +/* + * Copyright 2007-2008 Extreme Engineering Solutions, Inc. + * + * Author: Nate Case <ncase@xes-inc.com> + * + * This file is subject to the terms and conditions of version 2 of + * the GNU General Public License. See the file COPYING in the main + * directory of this archive for more details. + * + * LED driver for various PCA955x I2C LED drivers + * + * Supported devices: + * + * Device Description 7-bit slave address + * ------ ----------- ------------------- + * PCA9550 2-bit driver 0x60 .. 0x61 + * PCA9551 8-bit driver 0x60 .. 0x67 + * PCA9552 16-bit driver 0x60 .. 0x67 + * PCA9553/01 4-bit driver 0x62 + * PCA9553/02 4-bit driver 0x63 + * + * Philips PCA955x LED driver chips follow a register map as shown below: + * + * Control Register Description + * ---------------- ----------- + * 0x0 Input register 0 + * .. + * NUM_INPUT_REGS - 1 Last Input register X + * + * NUM_INPUT_REGS Frequency prescaler 0 + * NUM_INPUT_REGS + 1 PWM register 0 + * NUM_INPUT_REGS + 2 Frequency prescaler 1 + * NUM_INPUT_REGS + 3 PWM register 1 + * + * NUM_INPUT_REGS + 4 LED selector 0 + * NUM_INPUT_REGS + 4 + * + NUM_LED_REGS - 1 Last LED selector + * + * where NUM_INPUT_REGS and NUM_LED_REGS vary depending on how many + * bits the chip supports. + */ + +#include <linux/module.h> +#include <linux/delay.h> +#include <linux/string.h> +#include <linux/ctype.h> +#include <linux/leds.h> +#include <linux/err.h> +#include <linux/i2c.h> +#include <linux/workqueue.h> + +/* LED select registers determine the source that drives LED outputs */ +#define PCA955X_LS_LED_ON 0x0 /* Output LOW */ +#define PCA955X_LS_LED_OFF 0x1 /* Output HI-Z */ +#define PCA955X_LS_BLINK0 0x2 /* Blink at PWM0 rate */ +#define PCA955X_LS_BLINK1 0x3 /* Blink at PWM1 rate */ + +enum pca955x_type { + pca9550, + pca9551, + pca9552, + pca9553, +}; + +struct pca955x_chipdef { + int bits; + u8 slv_addr; /* 7-bit slave address mask */ + int slv_addr_shift; /* Number of bits to ignore */ +}; + +static struct pca955x_chipdef pca955x_chipdefs[] = { + [pca9550] = { + .bits = 2, + .slv_addr = /* 110000x */ 0x60, + .slv_addr_shift = 1, + }, + [pca9551] = { + .bits = 8, + .slv_addr = /* 1100xxx */ 0x60, + .slv_addr_shift = 3, + }, + [pca9552] = { + .bits = 16, + .slv_addr = /* 1100xxx */ 0x60, + .slv_addr_shift = 3, + }, + [pca9553] = { + .bits = 4, + .slv_addr = /* 110001x */ 0x62, + .slv_addr_shift = 1, + }, +}; + +static const struct i2c_device_id pca955x_id[] = { + { "pca9550", pca9550 }, + { "pca9551", pca9551 }, + { "pca9552", pca9552 }, + { "pca9553", pca9553 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, pca955x_id); + +struct pca955x_led { + struct pca955x_chipdef *chipdef; + struct i2c_client *client; + struct work_struct work; + spinlock_t lock; + enum led_brightness brightness; + struct led_classdev led_cdev; + int led_num; /* 0 .. 15 potentially */ + char name[32]; +}; + +/* 8 bits per input register */ +static inline int pca95xx_num_input_regs(int bits) +{ + return (bits + 7) / 8; +} + +/* 4 bits per LED selector register */ +static inline int pca95xx_num_led_regs(int bits) +{ + return (bits + 3) / 4; +} + +/* + * Return an LED selector register value based on an existing one, with + * the appropriate 2-bit state value set for the given LED number (0-3). + */ +static inline u8 pca955x_ledsel(u8 oldval, int led_num, int state) +{ + return (oldval & (~(0x3 << (led_num << 1)))) | + ((state & 0x3) << (led_num << 1)); +} + +/* + * Write to frequency prescaler register, used to program the + * period of the PWM output. period = (PSCx + 1) / 38 + */ +static void pca955x_write_psc(struct i2c_client *client, int n, u8 val) +{ + struct pca955x_led *pca955x = i2c_get_clientdata(client); + + i2c_smbus_write_byte_data(client, + pca95xx_num_input_regs(pca955x->chipdef->bits) + 2*n, + val); +} + +/* + * Write to PWM register, which determines the duty cycle of the + * output. LED is OFF when the count is less than the value of this + * register, and ON when it is greater. If PWMx == 0, LED is always OFF. + * + * Duty cycle is (256 - PWMx) / 256 + */ +static void pca955x_write_pwm(struct i2c_client *client, int n, u8 val) +{ + struct pca955x_led *pca955x = i2c_get_clientdata(client); + + i2c_smbus_write_byte_data(client, + pca95xx_num_input_regs(pca955x->chipdef->bits) + 1 + 2*n, + val); +} + +/* + * Write to LED selector register, which determines the source that + * drives the LED output. + */ +static void pca955x_write_ls(struct i2c_client *client, int n, u8 val) +{ + struct pca955x_led *pca955x = i2c_get_clientdata(client); + + i2c_smbus_write_byte_data(client, + pca95xx_num_input_regs(pca955x->chipdef->bits) + 4 + n, + val); +} + +/* + * Read the LED selector register, which determines the source that + * drives the LED output. + */ +static u8 pca955x_read_ls(struct i2c_client *client, int n) +{ + struct pca955x_led *pca955x = i2c_get_clientdata(client); + + return (u8) i2c_smbus_read_byte_data(client, + pca95xx_num_input_regs(pca955x->chipdef->bits) + 4 + n); +} + +static void pca955x_led_work(struct work_struct *work) +{ + struct pca955x_led *pca955x; + u8 ls; + int chip_ls; /* which LSx to use (0-3 potentially) */ + int ls_led; /* which set of bits within LSx to use (0-3) */ + + pca955x = container_of(work, struct pca955x_led, work); + chip_ls = pca955x->led_num / 4; + ls_led = pca955x->led_num % 4; + + ls = pca955x_read_ls(pca955x->client, chip_ls); + + switch (pca955x->brightness) { + case LED_FULL: + ls = pca955x_ledsel(ls, ls_led, PCA955X_LS_LED_ON); + break; + case LED_OFF: + ls = pca955x_ledsel(ls, ls_led, PCA955X_LS_LED_OFF); + break; + case LED_HALF: + ls = pca955x_ledsel(ls, ls_led, PCA955X_LS_BLINK0); + break; + default: + /* + * Use PWM1 for all other values. This has the unwanted + * side effect of making all LEDs on the chip share the + * same brightness level if set to a value other than + * OFF, HALF, or FULL. But, this is probably better than + * just turning off for all other values. + */ + pca955x_write_pwm(pca955x->client, 1, 255-pca955x->brightness); + ls = pca955x_ledsel(ls, ls_led, PCA955X_LS_BLINK1); + break; + } + + pca955x_write_ls(pca955x->client, chip_ls, ls); +} + +void pca955x_led_set(struct led_classdev *led_cdev, enum led_brightness value) +{ + struct pca955x_led *pca955x; + + pca955x = container_of(led_cdev, struct pca955x_led, led_cdev); + + spin_lock(&pca955x->lock); + pca955x->brightness = value; + + /* + * Must use workqueue for the actual I/O since I2C operations + * can sleep. + */ + schedule_work(&pca955x->work); + + spin_unlock(&pca955x->lock); +} + +static int __devinit pca955x_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct pca955x_led *pca955x; + int i; + int err = -ENODEV; + struct pca955x_chipdef *chip; + struct i2c_adapter *adapter; + struct led_platform_data *pdata; + + chip = &pca955x_chipdefs[id->driver_data]; + adapter = to_i2c_adapter(client->dev.parent); + pdata = client->dev.platform_data; + + /* Make sure the slave address / chip type combo given is possible */ + if ((client->addr & ~((1 << chip->slv_addr_shift) - 1)) != + chip->slv_addr) { + dev_err(&client->dev, "invalid slave address %02x\n", + client->addr); + return -ENODEV; + } + + printk(KERN_INFO "leds-pca955x: Using %s %d-bit LED driver at " + "slave address 0x%02x\n", + id->name, chip->bits, client->addr); + + if (!i2c_check_functionality(adapter, I2C_FUNC_I2C)) + return -EIO; + + if (pdata) { + if (pdata->num_leds != chip->bits) { + dev_err(&client->dev, "board info claims %d LEDs" + " on a %d-bit chip\n", + pdata->num_leds, chip->bits); + return -ENODEV; + } + } + + for (i = 0; i < chip->bits; i++) { + pca955x = kzalloc(sizeof(struct pca955x_led), GFP_KERNEL); + if (!pca955x) { + err = -ENOMEM; + goto exit; + } + + pca955x->chipdef = chip; + pca955x->client = client; + pca955x->led_num = i; + /* Platform data can specify LED names and default triggers */ + if (pdata) { + if (pdata->leds[i].name) + snprintf(pca955x->name, 32, "pca955x:%s", + pdata->leds[i].name); + if (pdata->leds[i].default_trigger) + pca955x->led_cdev.default_trigger = + pdata->leds[i].default_trigger; + } else { + snprintf(pca955x->name, 32, "pca955x:%d", i); + } + spin_lock_init(&pca955x->lock); + + pca955x->led_cdev.name = pca955x->name; + pca955x->led_cdev.brightness_set = + pca955x_led_set; + + /* + * Client data is a pointer to the _first_ pca955x_led + * struct + */ + if (i == 0) + i2c_set_clientdata(client, pca955x); + + INIT_WORK(&(pca955x->work), pca955x_led_work); + + led_classdev_register(&client->dev, &(pca955x->led_cdev)); + } + + /* Turn off LEDs */ + for (i = 0; i < pca95xx_num_led_regs(chip->bits); i++) + pca955x_write_ls(client, i, 0x55); + + /* PWM0 is used for half brightness or 50% duty cycle */ + pca955x_write_pwm(client, 0, 255-LED_HALF); + + /* PWM1 is used for variable brightness, default to OFF */ + pca955x_write_pwm(client, 1, 0); + + /* Set to fast frequency so we do not see flashing */ + pca955x_write_psc(client, 0, 0); + pca955x_write_psc(client, 1, 0); + + return 0; +exit: + return err; +} + +static int __devexit pca955x_remove(struct i2c_client *client) +{ + struct pca955x_led *pca955x = i2c_get_clientdata(client); + int leds = pca955x->chipdef->bits; + int i; + + for (i = 0; i < leds; i++) { + led_classdev_unregister(&(pca955x->led_cdev)); + cancel_work_sync(&(pca955x->work)); + kfree(pca955x); + pca955x = pca955x + 1; + } + + return 0; +} + +static struct i2c_driver pca955x_driver = { + .driver = { + .name = "leds-pca955x", + .owner = THIS_MODULE, + }, + .probe = pca955x_probe, + .remove = __devexit_p(pca955x_remove), + .id_table = pca955x_id, +}; + +static int __init pca955x_leds_init(void) +{ + return i2c_add_driver(&pca955x_driver); +} + +static void __exit pca955x_leds_exit(void) +{ + i2c_del_driver(&pca955x_driver); +} + +module_init(pca955x_leds_init); +module_exit(pca955x_leds_exit); + +MODULE_AUTHOR("Nate Case <ncase@xes-inc.com>"); +MODULE_DESCRIPTION("PCA955x LED driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/lguest/lguest_device.c b/drivers/lguest/lguest_device.c index 1a8de57..37344aa 100644 --- a/drivers/lguest/lguest_device.c +++ b/drivers/lguest/lguest_device.c @@ -98,16 +98,20 @@ static u32 lg_get_features(struct virtio_device *vdev) return features; } -static void lg_set_features(struct virtio_device *vdev, u32 features) +static void lg_finalize_features(struct virtio_device *vdev) { - unsigned int i; + unsigned int i, bits; struct lguest_device_desc *desc = to_lgdev(vdev)->desc; /* Second half of bitmap is features we accept. */ u8 *out_features = lg_features(desc) + desc->feature_len; + /* Give virtio_ring a chance to accept features. */ + vring_transport_features(vdev); + memset(out_features, 0, desc->feature_len); - for (i = 0; i < min(desc->feature_len * 8, 32); i++) { - if (features & (1 << i)) + bits = min_t(unsigned, desc->feature_len, sizeof(vdev->features)) * 8; + for (i = 0; i < bits; i++) { + if (test_bit(i, vdev->features)) out_features[i / 8] |= (1 << (i % 8)); } } @@ -297,7 +301,7 @@ static void lg_del_vq(struct virtqueue *vq) /* The ops structure which hooks everything together. */ static struct virtio_config_ops lguest_config_ops = { .get_features = lg_get_features, - .set_features = lg_set_features, + .finalize_features = lg_finalize_features, .get = lg_get, .set = lg_set, .get_status = lg_get_status, diff --git a/drivers/media/dvb/pluto2/pluto2.c b/drivers/media/dvb/pluto2/pluto2.c index 1360403..a9653c6 100644 --- a/drivers/media/dvb/pluto2/pluto2.c +++ b/drivers/media/dvb/pluto2/pluto2.c @@ -242,7 +242,7 @@ static int __devinit pluto_dma_map(struct pluto *pluto) pluto->dma_addr = pci_map_single(pluto->pdev, pluto->dma_buf, TS_DMA_BYTES, PCI_DMA_FROMDEVICE); - return pci_dma_mapping_error(pluto->dma_addr); + return pci_dma_mapping_error(pluto->pdev, pluto->dma_addr); } static void pluto_dma_unmap(struct pluto *pluto) diff --git a/drivers/media/video/pvrusb2/pvrusb2-dvb.c b/drivers/media/video/pvrusb2/pvrusb2-dvb.c index 6ec4bf81..77b3c33 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-dvb.c +++ b/drivers/media/video/pvrusb2/pvrusb2-dvb.c @@ -20,6 +20,7 @@ #include <linux/kthread.h> #include <linux/freezer.h> +#include <linux/mm.h> #include "dvbdev.h" #include "pvrusb2-debug.h" #include "pvrusb2-hdw-internal.h" diff --git a/drivers/media/video/pvrusb2/pvrusb2-ioread.c b/drivers/media/video/pvrusb2/pvrusb2-ioread.c index 05a1376..b482478 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-ioread.c +++ b/drivers/media/video/pvrusb2/pvrusb2-ioread.c @@ -22,6 +22,7 @@ #include "pvrusb2-debug.h" #include <linux/errno.h> #include <linux/string.h> +#include <linux/mm.h> #include <linux/slab.h> #include <linux/mutex.h> #include <asm/uaccess.h> diff --git a/drivers/media/video/uvc/uvc_queue.c b/drivers/media/video/uvc/uvc_queue.c index 7388d0c..5646a6a 100644 --- a/drivers/media/video/uvc/uvc_queue.c +++ b/drivers/media/video/uvc/uvc_queue.c @@ -13,6 +13,7 @@ #include <linux/kernel.h> #include <linux/version.h> +#include <linux/mm.h> #include <linux/list.h> #include <linux/module.h> #include <linux/usb.h> diff --git a/drivers/media/video/videobuf-core.c b/drivers/media/video/videobuf-core.c index 0a88c44..b7b0584 100644 --- a/drivers/media/video/videobuf-core.c +++ b/drivers/media/video/videobuf-core.c @@ -16,6 +16,7 @@ #include <linux/init.h> #include <linux/module.h> #include <linux/moduleparam.h> +#include <linux/mm.h> #include <linux/slab.h> #include <linux/interrupt.h> diff --git a/drivers/memstick/core/memstick.c b/drivers/memstick/core/memstick.c index 61b98c3..a380050 100644 --- a/drivers/memstick/core/memstick.c +++ b/drivers/memstick/core/memstick.c @@ -249,8 +249,11 @@ EXPORT_SYMBOL(memstick_next_req); */ void memstick_new_req(struct memstick_host *host) { - host->retries = cmd_retries; - host->request(host); + if (host->card) { + host->retries = cmd_retries; + INIT_COMPLETION(host->card->mrq_complete); + host->request(host); + } } EXPORT_SYMBOL(memstick_new_req); @@ -415,10 +418,14 @@ err_out: return NULL; } -static void memstick_power_on(struct memstick_host *host) +static int memstick_power_on(struct memstick_host *host) { - host->set_param(host, MEMSTICK_POWER, MEMSTICK_POWER_ON); - host->set_param(host, MEMSTICK_INTERFACE, MEMSTICK_SERIAL); + int rc = host->set_param(host, MEMSTICK_POWER, MEMSTICK_POWER_ON); + + if (!rc) + rc = host->set_param(host, MEMSTICK_INTERFACE, MEMSTICK_SERIAL); + + return rc; } static void memstick_check(struct work_struct *work) @@ -429,8 +436,11 @@ static void memstick_check(struct work_struct *work) dev_dbg(&host->dev, "memstick_check started\n"); mutex_lock(&host->lock); - if (!host->card) - memstick_power_on(host); + if (!host->card) { + if (memstick_power_on(host)) + goto out_power_off; + } else + host->card->stop(host->card); card = memstick_alloc_card(host); @@ -448,7 +458,8 @@ static void memstick_check(struct work_struct *work) || !(host->card->check(host->card))) { device_unregister(&host->card->dev); host->card = NULL; - } + } else + host->card->start(host->card); } if (!host->card) { @@ -461,6 +472,7 @@ static void memstick_check(struct work_struct *work) kfree(card); } +out_power_off: if (!host->card) host->set_param(host, MEMSTICK_POWER, MEMSTICK_POWER_OFF); @@ -573,11 +585,15 @@ EXPORT_SYMBOL(memstick_suspend_host); */ void memstick_resume_host(struct memstick_host *host) { + int rc = 0; + mutex_lock(&host->lock); if (host->card) - memstick_power_on(host); + rc = memstick_power_on(host); mutex_unlock(&host->lock); - memstick_detect_change(host); + + if (!rc) + memstick_detect_change(host); } EXPORT_SYMBOL(memstick_resume_host); diff --git a/drivers/memstick/core/mspro_block.c b/drivers/memstick/core/mspro_block.c index 477d0fb..44b1817 100644 --- a/drivers/memstick/core/mspro_block.c +++ b/drivers/memstick/core/mspro_block.c @@ -136,9 +136,8 @@ struct mspro_block_data { unsigned int caps; struct gendisk *disk; struct request_queue *queue; + struct request *block_req; spinlock_t q_lock; - wait_queue_head_t q_wait; - struct task_struct *q_thread; unsigned short page_size; unsigned short cylinders; @@ -147,9 +146,10 @@ struct mspro_block_data { unsigned char system; unsigned char read_only:1, - active:1, + eject:1, has_request:1, - data_dir:1; + data_dir:1, + active:1; unsigned char transfer_cmd; int (*mrq_handler)(struct memstick_dev *card, @@ -160,12 +160,14 @@ struct mspro_block_data { struct scatterlist req_sg[MSPRO_BLOCK_MAX_SEGS]; unsigned int seg_count; unsigned int current_seg; - unsigned short current_page; + unsigned int current_page; }; static DEFINE_IDR(mspro_block_disk_idr); static DEFINE_MUTEX(mspro_block_disk_lock); +static int mspro_block_complete_req(struct memstick_dev *card, int error); + /*** Block device ***/ static int mspro_block_bd_open(struct inode *inode, struct file *filp) @@ -197,8 +199,10 @@ static int mspro_block_disk_release(struct gendisk *disk) mutex_lock(&mspro_block_disk_lock); - if (msb->usage_count) { - msb->usage_count--; + if (msb) { + if (msb->usage_count) + msb->usage_count--; + if (!msb->usage_count) { kfree(msb); disk->private_data = NULL; @@ -523,11 +527,13 @@ static int h_mspro_block_req_init(struct memstick_dev *card, static int h_mspro_block_default(struct memstick_dev *card, struct memstick_request **mrq) { - complete(&card->mrq_complete); - if (!(*mrq)->error) - return -EAGAIN; - else - return (*mrq)->error; + return mspro_block_complete_req(card, (*mrq)->error); +} + +static int h_mspro_block_default_bad(struct memstick_dev *card, + struct memstick_request **mrq) +{ + return -ENXIO; } static int h_mspro_block_get_ro(struct memstick_dev *card, @@ -535,44 +541,30 @@ static int h_mspro_block_get_ro(struct memstick_dev *card, { struct mspro_block_data *msb = memstick_get_drvdata(card); - if ((*mrq)->error) { - complete(&card->mrq_complete); - return (*mrq)->error; + if (!(*mrq)->error) { + if ((*mrq)->data[offsetof(struct ms_status_register, status0)] + & MEMSTICK_STATUS0_WP) + msb->read_only = 1; + else + msb->read_only = 0; } - if ((*mrq)->data[offsetof(struct ms_status_register, status0)] - & MEMSTICK_STATUS0_WP) - msb->read_only = 1; - else - msb->read_only = 0; - - complete(&card->mrq_complete); - return -EAGAIN; + return mspro_block_complete_req(card, (*mrq)->error); } static int h_mspro_block_wait_for_ced(struct memstick_dev *card, struct memstick_request **mrq) { - if ((*mrq)->error) { - complete(&card->mrq_complete); - return (*mrq)->error; - } - dev_dbg(&card->dev, "wait for ced: value %x\n", (*mrq)->data[0]); - if ((*mrq)->data[0] & (MEMSTICK_INT_CMDNAK | MEMSTICK_INT_ERR)) { - card->current_mrq.error = -EFAULT; - complete(&card->mrq_complete); - return card->current_mrq.error; + if (!(*mrq)->error) { + if ((*mrq)->data[0] & (MEMSTICK_INT_CMDNAK | MEMSTICK_INT_ERR)) + (*mrq)->error = -EFAULT; + else if (!((*mrq)->data[0] & MEMSTICK_INT_CED)) + return 0; } - if (!((*mrq)->data[0] & MEMSTICK_INT_CED)) - return 0; - else { - card->current_mrq.error = 0; - complete(&card->mrq_complete); - return -EAGAIN; - } + return mspro_block_complete_req(card, (*mrq)->error); } static int h_mspro_block_transfer_data(struct memstick_dev *card, @@ -583,10 +575,8 @@ static int h_mspro_block_transfer_data(struct memstick_dev *card, struct scatterlist t_sg = { 0 }; size_t t_offset; - if ((*mrq)->error) { - complete(&card->mrq_complete); - return (*mrq)->error; - } + if ((*mrq)->error) + return mspro_block_complete_req(card, (*mrq)->error); switch ((*mrq)->tpc) { case MS_TPC_WRITE_REG: @@ -617,8 +607,8 @@ has_int_reg: if (msb->current_seg == msb->seg_count) { if (t_val & MEMSTICK_INT_CED) { - complete(&card->mrq_complete); - return -EAGAIN; + return mspro_block_complete_req(card, + 0); } else { card->next_request = h_mspro_block_wait_for_ced; @@ -666,140 +656,184 @@ has_int_reg: /*** Data transfer ***/ -static void mspro_block_process_request(struct memstick_dev *card, - struct request *req) +static int mspro_block_issue_req(struct memstick_dev *card, int chunk) { struct mspro_block_data *msb = memstick_get_drvdata(card); - struct mspro_param_register param; - int rc, chunk, cnt; - unsigned short page_count; sector_t t_sec; - unsigned long flags; + unsigned int count; + struct mspro_param_register param; - do { - page_count = 0; +try_again: + while (chunk) { + msb->current_page = 0; msb->current_seg = 0; - msb->seg_count = blk_rq_map_sg(req->q, req, msb->req_sg); + msb->seg_count = blk_rq_map_sg(msb->block_req->q, + msb->block_req, + msb->req_sg); - if (msb->seg_count) { - msb->current_page = 0; - for (rc = 0; rc < msb->seg_count; rc++) - page_count += msb->req_sg[rc].length - / msb->page_size; - - t_sec = req->sector; - sector_div(t_sec, msb->page_size >> 9); - param.system = msb->system; - param.data_count = cpu_to_be16(page_count); - param.data_address = cpu_to_be32((uint32_t)t_sec); - param.tpc_param = 0; - - msb->data_dir = rq_data_dir(req); - msb->transfer_cmd = msb->data_dir == READ - ? MSPRO_CMD_READ_DATA - : MSPRO_CMD_WRITE_DATA; - - dev_dbg(&card->dev, "data transfer: cmd %x, " - "lba %x, count %x\n", msb->transfer_cmd, - be32_to_cpu(param.data_address), - page_count); - - card->next_request = h_mspro_block_req_init; - msb->mrq_handler = h_mspro_block_transfer_data; - memstick_init_req(&card->current_mrq, MS_TPC_WRITE_REG, - ¶m, sizeof(param)); - memstick_new_req(card->host); - wait_for_completion(&card->mrq_complete); - rc = card->current_mrq.error; + if (!msb->seg_count) { + chunk = __blk_end_request(msb->block_req, -ENOMEM, + blk_rq_cur_bytes(msb->block_req)); + continue; + } - if (rc || (card->current_mrq.tpc == MSPRO_CMD_STOP)) { - for (cnt = 0; cnt < msb->current_seg; cnt++) - page_count += msb->req_sg[cnt].length - / msb->page_size; - - if (msb->current_page) - page_count += msb->current_page - 1; - - if (page_count && (msb->data_dir == READ)) - rc = msb->page_size * page_count; - else - rc = -EIO; - } else - rc = msb->page_size * page_count; - } else - rc = -EFAULT; + t_sec = msb->block_req->sector << 9; + sector_div(t_sec, msb->page_size); - spin_lock_irqsave(&msb->q_lock, flags); - if (rc >= 0) - chunk = __blk_end_request(req, 0, rc); - else - chunk = __blk_end_request(req, rc, 0); + count = msb->block_req->nr_sectors << 9; + count /= msb->page_size; - dev_dbg(&card->dev, "end chunk %d, %d\n", rc, chunk); - spin_unlock_irqrestore(&msb->q_lock, flags); - } while (chunk); + param.system = msb->system; + param.data_count = cpu_to_be16(count); + param.data_address = cpu_to_be32((uint32_t)t_sec); + param.tpc_param = 0; + + msb->data_dir = rq_data_dir(msb->block_req); + msb->transfer_cmd = msb->data_dir == READ + ? MSPRO_CMD_READ_DATA + : MSPRO_CMD_WRITE_DATA; + + dev_dbg(&card->dev, "data transfer: cmd %x, " + "lba %x, count %x\n", msb->transfer_cmd, + be32_to_cpu(param.data_address), count); + + card->next_request = h_mspro_block_req_init; + msb->mrq_handler = h_mspro_block_transfer_data; + memstick_init_req(&card->current_mrq, MS_TPC_WRITE_REG, + ¶m, sizeof(param)); + memstick_new_req(card->host); + return 0; + } + + dev_dbg(&card->dev, "elv_next\n"); + msb->block_req = elv_next_request(msb->queue); + if (!msb->block_req) { + dev_dbg(&card->dev, "issue end\n"); + return -EAGAIN; + } + + dev_dbg(&card->dev, "trying again\n"); + chunk = 1; + goto try_again; } -static int mspro_block_has_request(struct mspro_block_data *msb) +static int mspro_block_complete_req(struct memstick_dev *card, int error) { - int rc = 0; + struct mspro_block_data *msb = memstick_get_drvdata(card); + int chunk, cnt; + unsigned int t_len = 0; unsigned long flags; spin_lock_irqsave(&msb->q_lock, flags); - if (kthread_should_stop() || msb->has_request) - rc = 1; + dev_dbg(&card->dev, "complete %d, %d\n", msb->has_request ? 1 : 0, + error); + + if (msb->has_request) { + /* Nothing to do - not really an error */ + if (error == -EAGAIN) + error = 0; + + if (error || (card->current_mrq.tpc == MSPRO_CMD_STOP)) { + if (msb->data_dir == READ) { + for (cnt = 0; cnt < msb->current_seg; cnt++) + t_len += msb->req_sg[cnt].length + / msb->page_size; + + if (msb->current_page) + t_len += msb->current_page - 1; + + t_len *= msb->page_size; + } + } else + t_len = msb->block_req->nr_sectors << 9; + + dev_dbg(&card->dev, "transferred %x (%d)\n", t_len, error); + + if (error && !t_len) + t_len = blk_rq_cur_bytes(msb->block_req); + + chunk = __blk_end_request(msb->block_req, error, t_len); + + error = mspro_block_issue_req(card, chunk); + + if (!error) + goto out; + else + msb->has_request = 0; + } else { + if (!error) + error = -EAGAIN; + } + + card->next_request = h_mspro_block_default_bad; + complete_all(&card->mrq_complete); +out: spin_unlock_irqrestore(&msb->q_lock, flags); - return rc; + return error; } -static int mspro_block_queue_thread(void *data) +static void mspro_block_stop(struct memstick_dev *card) { - struct memstick_dev *card = data; - struct memstick_host *host = card->host; struct mspro_block_data *msb = memstick_get_drvdata(card); - struct request *req; + int rc = 0; unsigned long flags; while (1) { - wait_event(msb->q_wait, mspro_block_has_request(msb)); - dev_dbg(&card->dev, "thread iter\n"); - spin_lock_irqsave(&msb->q_lock, flags); - req = elv_next_request(msb->queue); - dev_dbg(&card->dev, "next req %p\n", req); - if (!req) { - msb->has_request = 0; - if (kthread_should_stop()) { - spin_unlock_irqrestore(&msb->q_lock, flags); - break; - } - } else - msb->has_request = 1; + if (!msb->has_request) { + blk_stop_queue(msb->queue); + rc = 1; + } spin_unlock_irqrestore(&msb->q_lock, flags); - if (req) { - mutex_lock(&host->lock); - mspro_block_process_request(card, req); - mutex_unlock(&host->lock); - } + if (rc) + break; + + wait_for_completion(&card->mrq_complete); } - dev_dbg(&card->dev, "thread finished\n"); - return 0; } -static void mspro_block_request(struct request_queue *q) +static void mspro_block_start(struct memstick_dev *card) +{ + struct mspro_block_data *msb = memstick_get_drvdata(card); + unsigned long flags; + + spin_lock_irqsave(&msb->q_lock, flags); + blk_start_queue(msb->queue); + spin_unlock_irqrestore(&msb->q_lock, flags); +} + +static int mspro_block_prepare_req(struct request_queue *q, struct request *req) +{ + if (!blk_fs_request(req) && !blk_pc_request(req)) { + blk_dump_rq_flags(req, "MSPro unsupported request"); + return BLKPREP_KILL; + } + + req->cmd_flags |= REQ_DONTPREP; + + return BLKPREP_OK; +} + +static void mspro_block_submit_req(struct request_queue *q) { struct memstick_dev *card = q->queuedata; struct mspro_block_data *msb = memstick_get_drvdata(card); struct request *req = NULL; - if (msb->q_thread) { - msb->has_request = 1; - wake_up_all(&msb->q_wait); - } else { + if (msb->has_request) + return; + + if (msb->eject) { while ((req = elv_next_request(q)) != NULL) end_queued_request(req, -ENODEV); + + return; } + + msb->has_request = 1; + if (mspro_block_issue_req(card, 0)) + msb->has_request = 0; } /*** Initialization ***/ @@ -1169,16 +1203,14 @@ static int mspro_block_init_disk(struct memstick_dev *card) goto out_release_id; } - spin_lock_init(&msb->q_lock); - init_waitqueue_head(&msb->q_wait); - - msb->queue = blk_init_queue(mspro_block_request, &msb->q_lock); + msb->queue = blk_init_queue(mspro_block_submit_req, &msb->q_lock); if (!msb->queue) { rc = -ENOMEM; goto out_put_disk; } msb->queue->queuedata = card; + blk_queue_prep_rq(msb->queue, mspro_block_prepare_req); blk_queue_bounce_limit(msb->queue, limit); blk_queue_max_sectors(msb->queue, MSPRO_BLOCK_MAX_PAGES); @@ -1204,14 +1236,8 @@ static int mspro_block_init_disk(struct memstick_dev *card) capacity *= msb->page_size >> 9; set_capacity(msb->disk, capacity); dev_dbg(&card->dev, "capacity set %ld\n", capacity); - msb->q_thread = kthread_run(mspro_block_queue_thread, card, - DRIVER_NAME"d"); - if (IS_ERR(msb->q_thread)) - goto out_put_disk; - mutex_unlock(&host->lock); add_disk(msb->disk); - mutex_lock(&host->lock); msb->active = 1; return 0; @@ -1259,6 +1285,7 @@ static int mspro_block_probe(struct memstick_dev *card) return -ENOMEM; memstick_set_drvdata(card, msb); msb->card = card; + spin_lock_init(&msb->q_lock); rc = mspro_block_init_card(card); @@ -1272,6 +1299,8 @@ static int mspro_block_probe(struct memstick_dev *card) rc = mspro_block_init_disk(card); if (!rc) { card->check = mspro_block_check_card; + card->stop = mspro_block_stop; + card->start = mspro_block_start; return 0; } @@ -1286,26 +1315,17 @@ out_free: static void mspro_block_remove(struct memstick_dev *card) { struct mspro_block_data *msb = memstick_get_drvdata(card); - struct task_struct *q_thread = NULL; unsigned long flags; del_gendisk(msb->disk); dev_dbg(&card->dev, "mspro block remove\n"); spin_lock_irqsave(&msb->q_lock, flags); - q_thread = msb->q_thread; - msb->q_thread = NULL; - msb->active = 0; + msb->eject = 1; + blk_start_queue(msb->queue); spin_unlock_irqrestore(&msb->q_lock, flags); - if (q_thread) { - mutex_unlock(&card->host->lock); - kthread_stop(q_thread); - mutex_lock(&card->host->lock); - } - - dev_dbg(&card->dev, "queue thread stopped\n"); - blk_cleanup_queue(msb->queue); + msb->queue = NULL; sysfs_remove_group(&card->dev.kobj, &msb->attr_group); @@ -1322,19 +1342,13 @@ static void mspro_block_remove(struct memstick_dev *card) static int mspro_block_suspend(struct memstick_dev *card, pm_message_t state) { struct mspro_block_data *msb = memstick_get_drvdata(card); - struct task_struct *q_thread = NULL; unsigned long flags; spin_lock_irqsave(&msb->q_lock, flags); - q_thread = msb->q_thread; - msb->q_thread = NULL; - msb->active = 0; blk_stop_queue(msb->queue); + msb->active = 0; spin_unlock_irqrestore(&msb->q_lock, flags); - if (q_thread) - kthread_stop(q_thread); - return 0; } @@ -1373,14 +1387,7 @@ static int mspro_block_resume(struct memstick_dev *card) if (memcmp(s_attr->data, r_attr->data, s_attr->size)) break; - memstick_set_drvdata(card, msb); - msb->q_thread = kthread_run(mspro_block_queue_thread, - card, DRIVER_NAME"d"); - if (IS_ERR(msb->q_thread)) - msb->q_thread = NULL; - else - msb->active = 1; - + msb->active = 1; break; } } diff --git a/drivers/memstick/host/jmb38x_ms.c b/drivers/memstick/host/jmb38x_ms.c index 4e3bfbc..3485c63 100644 --- a/drivers/memstick/host/jmb38x_ms.c +++ b/drivers/memstick/host/jmb38x_ms.c @@ -50,6 +50,7 @@ struct jmb38x_ms_host { struct jmb38x_ms *chip; void __iomem *addr; spinlock_t lock; + struct tasklet_struct notify; int id; char host_id[32]; int irq; @@ -590,55 +591,97 @@ static void jmb38x_ms_abort(unsigned long data) spin_unlock_irqrestore(&host->lock, flags); } -static void jmb38x_ms_request(struct memstick_host *msh) +static void jmb38x_ms_req_tasklet(unsigned long data) { + struct memstick_host *msh = (struct memstick_host *)data; struct jmb38x_ms_host *host = memstick_priv(msh); unsigned long flags; int rc; spin_lock_irqsave(&host->lock, flags); - if (host->req) { - spin_unlock_irqrestore(&host->lock, flags); - BUG(); - return; + if (!host->req) { + do { + rc = memstick_next_req(msh, &host->req); + dev_dbg(&host->chip->pdev->dev, "tasklet req %d\n", rc); + } while (!rc && jmb38x_ms_issue_cmd(msh)); } - - do { - rc = memstick_next_req(msh, &host->req); - } while (!rc && jmb38x_ms_issue_cmd(msh)); spin_unlock_irqrestore(&host->lock, flags); } -static void jmb38x_ms_reset(struct jmb38x_ms_host *host) +static void jmb38x_ms_dummy_submit(struct memstick_host *msh) { - unsigned int host_ctl = readl(host->addr + HOST_CONTROL); + return; +} + +static void jmb38x_ms_submit_req(struct memstick_host *msh) +{ + struct jmb38x_ms_host *host = memstick_priv(msh); + + tasklet_schedule(&host->notify); +} + +static int jmb38x_ms_reset(struct jmb38x_ms_host *host) +{ + int cnt; + + writel(HOST_CONTROL_RESET_REQ | HOST_CONTROL_CLOCK_EN + | readl(host->addr + HOST_CONTROL), + host->addr + HOST_CONTROL); + mmiowb(); + + for (cnt = 0; cnt < 20; ++cnt) { + if (!(HOST_CONTROL_RESET_REQ + & readl(host->addr + HOST_CONTROL))) + goto reset_next; - writel(HOST_CONTROL_RESET_REQ, host->addr + HOST_CONTROL); + ndelay(20); + } + dev_dbg(&host->chip->pdev->dev, "reset_req timeout\n"); + return -EIO; + +reset_next: + writel(HOST_CONTROL_RESET | HOST_CONTROL_CLOCK_EN + | readl(host->addr + HOST_CONTROL), + host->addr + HOST_CONTROL); + mmiowb(); + + for (cnt = 0; cnt < 20; ++cnt) { + if (!(HOST_CONTROL_RESET + & readl(host->addr + HOST_CONTROL))) + goto reset_ok; - while (HOST_CONTROL_RESET_REQ - & (host_ctl = readl(host->addr + HOST_CONTROL))) { ndelay(20); - dev_dbg(&host->chip->pdev->dev, "reset %08x\n", host_ctl); } + dev_dbg(&host->chip->pdev->dev, "reset timeout\n"); + return -EIO; - writel(HOST_CONTROL_RESET, host->addr + HOST_CONTROL); +reset_ok: mmiowb(); writel(INT_STATUS_ALL, host->addr + INT_SIGNAL_ENABLE); writel(INT_STATUS_ALL, host->addr + INT_STATUS_ENABLE); + return 0; } -static void jmb38x_ms_set_param(struct memstick_host *msh, - enum memstick_param param, - int value) +static int jmb38x_ms_set_param(struct memstick_host *msh, + enum memstick_param param, + int value) { struct jmb38x_ms_host *host = memstick_priv(msh); unsigned int host_ctl = readl(host->addr + HOST_CONTROL); unsigned int clock_ctl = CLOCK_CONTROL_40MHZ, clock_delay = 0; + int rc = 0; switch (param) { case MEMSTICK_POWER: if (value == MEMSTICK_POWER_ON) { - jmb38x_ms_reset(host); + rc = jmb38x_ms_reset(host); + if (rc) + return rc; + + host_ctl = 7; + host_ctl |= HOST_CONTROL_POWER_EN + | HOST_CONTROL_CLOCK_EN; + writel(host_ctl, host->addr + HOST_CONTROL); writel(host->id ? PAD_PU_PD_ON_MS_SOCK1 : PAD_PU_PD_ON_MS_SOCK0, @@ -647,11 +690,7 @@ static void jmb38x_ms_set_param(struct memstick_host *msh, writel(PAD_OUTPUT_ENABLE_MS, host->addr + PAD_OUTPUT_ENABLE); - host_ctl = 7; - host_ctl |= HOST_CONTROL_POWER_EN - | HOST_CONTROL_CLOCK_EN; - writel(host_ctl, host->addr + HOST_CONTROL); - + msleep(10); dev_dbg(&host->chip->pdev->dev, "power on\n"); } else if (value == MEMSTICK_POWER_OFF) { host_ctl &= ~(HOST_CONTROL_POWER_EN @@ -660,7 +699,8 @@ static void jmb38x_ms_set_param(struct memstick_host *msh, writel(0, host->addr + PAD_OUTPUT_ENABLE); writel(PAD_PU_PD_OFF, host->addr + PAD_PU_PD); dev_dbg(&host->chip->pdev->dev, "power off\n"); - } + } else + return -EINVAL; break; case MEMSTICK_INTERFACE: host_ctl &= ~(3 << HOST_CONTROL_IF_SHIFT); @@ -686,12 +726,14 @@ static void jmb38x_ms_set_param(struct memstick_host *msh, host_ctl &= ~HOST_CONTROL_REI; clock_ctl = CLOCK_CONTROL_60MHZ; clock_delay = 0; - } + } else + return -EINVAL; writel(host_ctl, host->addr + HOST_CONTROL); writel(clock_ctl, host->addr + CLOCK_CONTROL); writel(clock_delay, host->addr + CLOCK_DELAY); break; }; + return 0; } #ifdef CONFIG_PM @@ -785,7 +827,9 @@ static struct memstick_host *jmb38x_ms_alloc_host(struct jmb38x_ms *jm, int cnt) host->id); host->irq = jm->pdev->irq; host->timeout_jiffies = msecs_to_jiffies(1000); - msh->request = jmb38x_ms_request; + + tasklet_init(&host->notify, jmb38x_ms_req_tasklet, (unsigned long)msh); + msh->request = jmb38x_ms_submit_req; msh->set_param = jmb38x_ms_set_param; msh->caps = MEMSTICK_CAP_PAR4 | MEMSTICK_CAP_PAR8; @@ -897,6 +941,8 @@ static void jmb38x_ms_remove(struct pci_dev *dev) host = memstick_priv(jm->hosts[cnt]); + jm->hosts[cnt]->request = jmb38x_ms_dummy_submit; + tasklet_kill(&host->notify); writel(0, host->addr + INT_SIGNAL_ENABLE); writel(0, host->addr + INT_STATUS_ENABLE); mmiowb(); diff --git a/drivers/memstick/host/tifm_ms.c b/drivers/memstick/host/tifm_ms.c index 8577de4..d32d6ad 100644 --- a/drivers/memstick/host/tifm_ms.c +++ b/drivers/memstick/host/tifm_ms.c @@ -71,6 +71,7 @@ struct tifm_ms { struct tifm_dev *dev; struct timer_list timer; struct memstick_request *req; + struct tasklet_struct notify; unsigned int mode_mask; unsigned int block_pos; unsigned long timeout_jiffies; @@ -455,49 +456,51 @@ static void tifm_ms_card_event(struct tifm_dev *sock) return; } -static void tifm_ms_request(struct memstick_host *msh) +static void tifm_ms_req_tasklet(unsigned long data) { + struct memstick_host *msh = (struct memstick_host *)data; struct tifm_ms *host = memstick_priv(msh); struct tifm_dev *sock = host->dev; unsigned long flags; int rc; spin_lock_irqsave(&sock->lock, flags); - if (host->req) { - printk(KERN_ERR "%s : unfinished request detected\n", - sock->dev.bus_id); - spin_unlock_irqrestore(&sock->lock, flags); - tifm_eject(host->dev); - return; - } + if (!host->req) { + if (host->eject) { + do { + rc = memstick_next_req(msh, &host->req); + if (!rc) + host->req->error = -ETIME; + } while (!rc); + spin_unlock_irqrestore(&sock->lock, flags); + return; + } - if (host->eject) { do { rc = memstick_next_req(msh, &host->req); - if (!rc) - host->req->error = -ETIME; - } while (!rc); - spin_unlock_irqrestore(&sock->lock, flags); - return; + } while (!rc && tifm_ms_issue_cmd(host)); } - - do { - rc = memstick_next_req(msh, &host->req); - } while (!rc && tifm_ms_issue_cmd(host)); - spin_unlock_irqrestore(&sock->lock, flags); +} + +static void tifm_ms_dummy_submit(struct memstick_host *msh) +{ return; } -static void tifm_ms_set_param(struct memstick_host *msh, - enum memstick_param param, - int value) +static void tifm_ms_submit_req(struct memstick_host *msh) { struct tifm_ms *host = memstick_priv(msh); - struct tifm_dev *sock = host->dev; - unsigned long flags; - spin_lock_irqsave(&sock->lock, flags); + tasklet_schedule(&host->notify); +} + +static int tifm_ms_set_param(struct memstick_host *msh, + enum memstick_param param, + int value) +{ + struct tifm_ms *host = memstick_priv(msh); + struct tifm_dev *sock = host->dev; switch (param) { case MEMSTICK_POWER: @@ -512,7 +515,8 @@ static void tifm_ms_set_param(struct memstick_host *msh, writel(TIFM_MS_SYS_FCLR | TIFM_MS_SYS_INTCLR, sock->addr + SOCK_MS_SYSTEM); writel(0xffffffff, sock->addr + SOCK_MS_STATUS); - } + } else + return -EINVAL; break; case MEMSTICK_INTERFACE: if (value == MEMSTICK_SERIAL) { @@ -525,11 +529,12 @@ static void tifm_ms_set_param(struct memstick_host *msh, writel(TIFM_CTRL_FAST_CLK | readl(sock->addr + SOCK_CONTROL), sock->addr + SOCK_CONTROL); - } + } else + return -EINVAL; break; }; - spin_unlock_irqrestore(&sock->lock, flags); + return 0; } static void tifm_ms_abort(unsigned long data) @@ -570,8 +575,9 @@ static int tifm_ms_probe(struct tifm_dev *sock) host->timeout_jiffies = msecs_to_jiffies(1000); setup_timer(&host->timer, tifm_ms_abort, (unsigned long)host); + tasklet_init(&host->notify, tifm_ms_req_tasklet, (unsigned long)msh); - msh->request = tifm_ms_request; + msh->request = tifm_ms_submit_req; msh->set_param = tifm_ms_set_param; sock->card_event = tifm_ms_card_event; sock->data_event = tifm_ms_data_event; @@ -593,6 +599,8 @@ static void tifm_ms_remove(struct tifm_dev *sock) int rc = 0; unsigned long flags; + msh->request = tifm_ms_dummy_submit; + tasklet_kill(&host->notify); spin_lock_irqsave(&sock->lock, flags); host->eject = 1; if (host->req) { diff --git a/drivers/message/fusion/lsi/mpi_history.txt b/drivers/message/fusion/lsi/mpi_history.txt index 241592ab..3f15fcf 100644 --- a/drivers/message/fusion/lsi/mpi_history.txt +++ b/drivers/message/fusion/lsi/mpi_history.txt @@ -127,7 +127,7 @@ mpi_ioc.h * 08-08-01 01.02.01 Original release for v1.2 work. * New format for FWVersion and ProductId in * MSG_IOC_FACTS_REPLY and MPI_FW_HEADER. - * 08-31-01 01.02.02 Addded event MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE and + * 08-31-01 01.02.02 Added event MPI_EVENT_SCSI_DEVICE_STATUS_CHANGE and * related structure and defines. * Added event MPI_EVENT_ON_BUS_TIMER_EXPIRED. * Added MPI_IOCINIT_FLAGS_DISCARD_FW_IMAGE. @@ -187,7 +187,7 @@ mpi_ioc.h * 10-11-06 01.05.12 Added MPI_IOCFACTS_EXCEPT_METADATA_UNSUPPORTED. * Added MaxInitiators field to PortFacts reply. * Added SAS Device Status Change ReasonCode for - * asynchronous notificaiton. + * asynchronous notification. * Added MPI_EVENT_SAS_EXPANDER_STATUS_CHANGE and event * data structure. * Added new ImageType values for FWDownload and FWUpload @@ -213,7 +213,7 @@ mpi_cnfg.h * Added _RESPONSE_ID_MASK definition to SCSI_PORT_1 * page and updated the page version. * Added Information field and _INFO_PARAMS_NEGOTIATED - * definitionto SCSI_DEVICE_0 page. + * definition to SCSI_DEVICE_0 page. * 06-22-00 01.00.03 Removed batch controls from LAN_0 page and updated the * page version. * Added BucketsRemaining to LAN_1 page, redefined the diff --git a/drivers/message/i2o/device.c b/drivers/message/i2o/device.c index 489d7c5..8774c67 100644 --- a/drivers/message/i2o/device.c +++ b/drivers/message/i2o/device.c @@ -243,29 +243,41 @@ static int i2o_device_add(struct i2o_controller *c, i2o_lct_entry *entry) /* create user entries for this device */ tmp = i2o_iop_find_device(i2o_dev->iop, i2o_dev->lct_data.user_tid); - if (tmp && (tmp != i2o_dev)) - sysfs_create_link(&i2o_dev->device.kobj, &tmp->device.kobj, - "user"); + if (tmp && (tmp != i2o_dev)) { + rc = sysfs_create_link(&i2o_dev->device.kobj, + &tmp->device.kobj, "user"); + if (rc) + goto unreg_dev; + } /* create user entries refering to this device */ list_for_each_entry(tmp, &c->devices, list) if ((tmp->lct_data.user_tid == i2o_dev->lct_data.tid) - && (tmp != i2o_dev)) - sysfs_create_link(&tmp->device.kobj, - &i2o_dev->device.kobj, "user"); + && (tmp != i2o_dev)) { + rc = sysfs_create_link(&tmp->device.kobj, + &i2o_dev->device.kobj, "user"); + if (rc) + goto rmlink1; + } /* create parent entries for this device */ tmp = i2o_iop_find_device(i2o_dev->iop, i2o_dev->lct_data.parent_tid); - if (tmp && (tmp != i2o_dev)) - sysfs_create_link(&i2o_dev->device.kobj, &tmp->device.kobj, - "parent"); + if (tmp && (tmp != i2o_dev)) { + rc = sysfs_create_link(&i2o_dev->device.kobj, + &tmp->device.kobj, "parent"); + if (rc) + goto rmlink1; + } /* create parent entries refering to this device */ list_for_each_entry(tmp, &c->devices, list) if ((tmp->lct_data.parent_tid == i2o_dev->lct_data.tid) - && (tmp != i2o_dev)) - sysfs_create_link(&tmp->device.kobj, - &i2o_dev->device.kobj, "parent"); + && (tmp != i2o_dev)) { + rc = sysfs_create_link(&tmp->device.kobj, + &i2o_dev->device.kobj, "parent"); + if (rc) + goto rmlink2; + } i2o_driver_notify_device_add_all(i2o_dev); @@ -273,6 +285,24 @@ static int i2o_device_add(struct i2o_controller *c, i2o_lct_entry *entry) return 0; +rmlink2: + /* If link creating failed halfway, we loop whole list to cleanup. + * And we don't care wrong removing of link, because sysfs_remove_link + * will take care of it. + */ + list_for_each_entry(tmp, &c->devices, list) { + if (tmp->lct_data.parent_tid == i2o_dev->lct_data.tid) + sysfs_remove_link(&tmp->device.kobj, "parent"); + } + sysfs_remove_link(&i2o_dev->device.kobj, "parent"); +rmlink1: + list_for_each_entry(tmp, &c->devices, list) + if (tmp->lct_data.user_tid == i2o_dev->lct_data.tid) + sysfs_remove_link(&tmp->device.kobj, "user"); + sysfs_remove_link(&i2o_dev->device.kobj, "user"); +unreg_dev: + list_del(&i2o_dev->list); + device_unregister(&i2o_dev->device); err: kfree(i2o_dev); return rc; diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 9f93c29..883e7ea 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -19,6 +19,14 @@ config MFD_SM501 interface. The device may be connected by PCI or local bus with varying functions enabled. +config MFD_SM501_GPIO + bool "Export GPIO via GPIO layer" + depends on MFD_SM501 && HAVE_GPIO_LIB + ---help--- + This option uses the gpio library layer to export the 64 GPIO + lines on the SM501. The platform data is used to supply the + base number for the first GPIO line to register. + config MFD_ASIC3 bool "Support for Compaq ASIC3" depends on GENERIC_HARDIRQS && HAVE_GPIO_LIB && ARM @@ -28,7 +36,7 @@ config MFD_ASIC3 config HTC_EGPIO bool "HTC EGPIO support" - depends on GENERIC_HARDIRQS && HAVE_GPIO_LIB && ARM + depends on GENERIC_HARDIRQS && GPIOLIB && ARM help This driver supports the CPLD egpio chip present on several HTC phones. It provides basic support for input @@ -44,7 +52,7 @@ config HTC_PASIC3 config MFD_TC6393XB bool "Support Toshiba TC6393XB" - depends on HAVE_GPIO_LIB + depends on GPIOLIB && ARM select MFD_CORE help Support for Toshiba Mobile IO Controller TC6393XB diff --git a/drivers/mfd/asic3.c b/drivers/mfd/asic3.c index 3b870e7..eabf0bf 100644 --- a/drivers/mfd/asic3.c +++ b/drivers/mfd/asic3.c @@ -314,10 +314,12 @@ static int __init asic3_irq_probe(struct platform_device *pdev) unsigned long clksel = 0; unsigned int irq, irq_base; int map_size; + int ret; - asic->irq_nr = platform_get_irq(pdev, 0); - if (asic->irq_nr < 0) - return asic->irq_nr; + ret = platform_get_irq(pdev, 0); + if (ret < 0) + return ret; + asic->irq_nr = ret; /* turn on clock to IRQ controller */ clksel |= CLOCK_SEL_CX; diff --git a/drivers/mfd/htc-egpio.c b/drivers/mfd/htc-egpio.c index 8872cc0..6be4317 100644 --- a/drivers/mfd/htc-egpio.c +++ b/drivers/mfd/htc-egpio.c @@ -318,6 +318,8 @@ static int __init egpio_probe(struct platform_device *pdev) ei->chip[i].dev = &(pdev->dev); chip = &(ei->chip[i].chip); chip->label = "htc-egpio"; + chip->dev = &pdev->dev; + chip->owner = THIS_MODULE; chip->get = egpio_get; chip->set = egpio_set; chip->direction_input = egpio_direction_input; diff --git a/drivers/mfd/htc-pasic3.c b/drivers/mfd/htc-pasic3.c index 633cbba..91b294d 100644 --- a/drivers/mfd/htc-pasic3.c +++ b/drivers/mfd/htc-pasic3.c @@ -238,6 +238,8 @@ static int pasic3_remove(struct platform_device *pdev) return 0; } +MODULE_ALIAS("platform:pasic3"); + static struct platform_driver pasic3_driver = { .driver = { .name = "pasic3", diff --git a/drivers/mfd/mcp-sa11x0.c b/drivers/mfd/mcp-sa11x0.c index 1eab7cf..b5272b5c 100644 --- a/drivers/mfd/mcp-sa11x0.c +++ b/drivers/mfd/mcp-sa11x0.c @@ -242,6 +242,8 @@ static int mcp_sa11x0_resume(struct platform_device *dev) /* * The driver for the SA11x0 MCP port. */ +MODULE_ALIAS("platform:sa11x0-mcp"); + static struct platform_driver mcp_sa11x0_driver = { .probe = mcp_sa11x0_probe, .remove = mcp_sa11x0_remove, diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c index d7d88ce..0454be4 100644 --- a/drivers/mfd/mfd-core.c +++ b/drivers/mfd/mfd-core.c @@ -36,7 +36,7 @@ static int mfd_add_device(struct platform_device *parent, if (ret) goto fail_device; - memzero(res, sizeof(res)); + memset(res, 0, sizeof(res)); for (r = 0; r < cell->num_resources; r++) { res[r].name = cell->resources[r].name; res[r].flags = cell->resources[r].flags; diff --git a/drivers/mfd/sm501.c b/drivers/mfd/sm501.c index 2fe6473..7aebad4 100644 --- a/drivers/mfd/sm501.c +++ b/drivers/mfd/sm501.c @@ -19,6 +19,7 @@ #include <linux/device.h> #include <linux/platform_device.h> #include <linux/pci.h> +#include <linux/i2c-gpio.h> #include <linux/sm501.h> #include <linux/sm501-regs.h> @@ -31,10 +32,37 @@ struct sm501_device { struct platform_device pdev; }; +struct sm501_gpio; + +#ifdef CONFIG_MFD_SM501_GPIO +#include <linux/gpio.h> + +struct sm501_gpio_chip { + struct gpio_chip gpio; + struct sm501_gpio *ourgpio; /* to get back to parent. */ + void __iomem *regbase; +}; + +struct sm501_gpio { + struct sm501_gpio_chip low; + struct sm501_gpio_chip high; + spinlock_t lock; + + unsigned int registered : 1; + void __iomem *regs; + struct resource *regs_res; +}; +#else +struct sm501_gpio { + /* no gpio support, empty definition for sm501_devdata. */ +}; +#endif + struct sm501_devdata { spinlock_t reg_lock; struct mutex clock_lock; struct list_head devices; + struct sm501_gpio gpio; struct device *dev; struct resource *io_res; @@ -42,6 +70,7 @@ struct sm501_devdata { struct resource *regs_claim; struct sm501_platdata *platdata; + unsigned int in_suspend; unsigned long pm_misc; @@ -52,6 +81,7 @@ struct sm501_devdata { unsigned int rev; }; + #define MHZ (1000 * 1000) #ifdef DEBUG @@ -276,58 +306,6 @@ unsigned long sm501_modify_reg(struct device *dev, EXPORT_SYMBOL_GPL(sm501_modify_reg); -unsigned long sm501_gpio_get(struct device *dev, - unsigned long gpio) -{ - struct sm501_devdata *sm = dev_get_drvdata(dev); - unsigned long result; - unsigned long reg; - - reg = (gpio > 32) ? SM501_GPIO_DATA_HIGH : SM501_GPIO_DATA_LOW; - result = readl(sm->regs + reg); - - result >>= (gpio & 31); - return result & 1UL; -} - -EXPORT_SYMBOL_GPL(sm501_gpio_get); - -void sm501_gpio_set(struct device *dev, - unsigned long gpio, - unsigned int to, - unsigned int dir) -{ - struct sm501_devdata *sm = dev_get_drvdata(dev); - - unsigned long bit = 1 << (gpio & 31); - unsigned long base; - unsigned long save; - unsigned long val; - - base = (gpio > 32) ? SM501_GPIO_DATA_HIGH : SM501_GPIO_DATA_LOW; - base += SM501_GPIO; - - spin_lock_irqsave(&sm->reg_lock, save); - - val = readl(sm->regs + base) & ~bit; - if (to) - val |= bit; - writel(val, sm->regs + base); - - val = readl(sm->regs + SM501_GPIO_DDR_LOW) & ~bit; - if (dir) - val |= bit; - - writel(val, sm->regs + SM501_GPIO_DDR_LOW); - sm501_sync_regs(sm); - - spin_unlock_irqrestore(&sm->reg_lock, save); - -} - -EXPORT_SYMBOL_GPL(sm501_gpio_set); - - /* sm501_unit_power * * alters the power active gate to set specific units on or off @@ -906,6 +884,313 @@ static int sm501_register_display(struct sm501_devdata *sm, return sm501_register_device(sm, pdev); } +#ifdef CONFIG_MFD_SM501_GPIO + +static inline struct sm501_gpio_chip *to_sm501_gpio(struct gpio_chip *gc) +{ + return container_of(gc, struct sm501_gpio_chip, gpio); +} + +static inline struct sm501_devdata *sm501_gpio_to_dev(struct sm501_gpio *gpio) +{ + return container_of(gpio, struct sm501_devdata, gpio); +} + +static int sm501_gpio_get(struct gpio_chip *chip, unsigned offset) + +{ + struct sm501_gpio_chip *smgpio = to_sm501_gpio(chip); + unsigned long result; + + result = readl(smgpio->regbase + SM501_GPIO_DATA_LOW); + result >>= offset; + + return result & 1UL; +} + +static void sm501_gpio_set(struct gpio_chip *chip, unsigned offset, int value) + +{ + struct sm501_gpio_chip *smchip = to_sm501_gpio(chip); + struct sm501_gpio *smgpio = smchip->ourgpio; + unsigned long bit = 1 << offset; + void __iomem *regs = smchip->regbase; + unsigned long save; + unsigned long val; + + dev_dbg(sm501_gpio_to_dev(smgpio)->dev, "%s(%p,%d)\n", + __func__, chip, offset); + + spin_lock_irqsave(&smgpio->lock, save); + + val = readl(regs + SM501_GPIO_DATA_LOW) & ~bit; + if (value) + val |= bit; + writel(val, regs); + + sm501_sync_regs(sm501_gpio_to_dev(smgpio)); + spin_unlock_irqrestore(&smgpio->lock, save); +} + +static int sm501_gpio_input(struct gpio_chip *chip, unsigned offset) +{ + struct sm501_gpio_chip *smchip = to_sm501_gpio(chip); + struct sm501_gpio *smgpio = smchip->ourgpio; + void __iomem *regs = smchip->regbase; + unsigned long bit = 1 << offset; + unsigned long save; + unsigned long ddr; + + dev_info(sm501_gpio_to_dev(smgpio)->dev, "%s(%p,%d)\n", + __func__, chip, offset); + + spin_lock_irqsave(&smgpio->lock, save); + + ddr = readl(regs + SM501_GPIO_DDR_LOW); + writel(ddr & ~bit, regs + SM501_GPIO_DDR_LOW); + + sm501_sync_regs(sm501_gpio_to_dev(smgpio)); + spin_unlock_irqrestore(&smgpio->lock, save); + + return 0; +} + +static int sm501_gpio_output(struct gpio_chip *chip, + unsigned offset, int value) +{ + struct sm501_gpio_chip *smchip = to_sm501_gpio(chip); + struct sm501_gpio *smgpio = smchip->ourgpio; + unsigned long bit = 1 << offset; + void __iomem *regs = smchip->regbase; + unsigned long save; + unsigned long val; + unsigned long ddr; + + dev_dbg(sm501_gpio_to_dev(smgpio)->dev, "%s(%p,%d,%d)\n", + __func__, chip, offset, value); + + spin_lock_irqsave(&smgpio->lock, save); + + val = readl(regs + SM501_GPIO_DATA_LOW); + if (value) + val |= bit; + else + val &= ~bit; + writel(val, regs); + + ddr = readl(regs + SM501_GPIO_DDR_LOW); + writel(ddr | bit, regs + SM501_GPIO_DDR_LOW); + + sm501_sync_regs(sm501_gpio_to_dev(smgpio)); + writel(val, regs + SM501_GPIO_DATA_LOW); + + sm501_sync_regs(sm501_gpio_to_dev(smgpio)); + spin_unlock_irqrestore(&smgpio->lock, save); + + return 0; +} + +static struct gpio_chip gpio_chip_template = { + .ngpio = 32, + .direction_input = sm501_gpio_input, + .direction_output = sm501_gpio_output, + .set = sm501_gpio_set, + .get = sm501_gpio_get, +}; + +static int __devinit sm501_gpio_register_chip(struct sm501_devdata *sm, + struct sm501_gpio *gpio, + struct sm501_gpio_chip *chip) +{ + struct sm501_platdata *pdata = sm->platdata; + struct gpio_chip *gchip = &chip->gpio; + int base = pdata->gpio_base; + + chip->gpio = gpio_chip_template; + + if (chip == &gpio->high) { + if (base > 0) + base += 32; + chip->regbase = gpio->regs + SM501_GPIO_DATA_HIGH; + gchip->label = "SM501-HIGH"; + } else { + chip->regbase = gpio->regs + SM501_GPIO_DATA_LOW; + gchip->label = "SM501-LOW"; + } + + gchip->base = base; + chip->ourgpio = gpio; + + return gpiochip_add(gchip); +} + +static int sm501_register_gpio(struct sm501_devdata *sm) +{ + struct sm501_gpio *gpio = &sm->gpio; + resource_size_t iobase = sm->io_res->start + SM501_GPIO; + int ret; + int tmp; + + dev_dbg(sm->dev, "registering gpio block %08llx\n", + (unsigned long long)iobase); + + spin_lock_init(&gpio->lock); + + gpio->regs_res = request_mem_region(iobase, 0x20, "sm501-gpio"); + if (gpio->regs_res == NULL) { + dev_err(sm->dev, "gpio: failed to request region\n"); + return -ENXIO; + } + + gpio->regs = ioremap(iobase, 0x20); + if (gpio->regs == NULL) { + dev_err(sm->dev, "gpio: failed to remap registers\n"); + ret = -ENXIO; + goto err_claimed; + } + + /* Register both our chips. */ + + ret = sm501_gpio_register_chip(sm, gpio, &gpio->low); + if (ret) { + dev_err(sm->dev, "failed to add low chip\n"); + goto err_mapped; + } + + ret = sm501_gpio_register_chip(sm, gpio, &gpio->high); + if (ret) { + dev_err(sm->dev, "failed to add high chip\n"); + goto err_low_chip; + } + + gpio->registered = 1; + + return 0; + + err_low_chip: + tmp = gpiochip_remove(&gpio->low.gpio); + if (tmp) { + dev_err(sm->dev, "cannot remove low chip, cannot tidy up\n"); + return ret; + } + + err_mapped: + iounmap(gpio->regs); + + err_claimed: + release_resource(gpio->regs_res); + kfree(gpio->regs_res); + + return ret; +} + +static void sm501_gpio_remove(struct sm501_devdata *sm) +{ + struct sm501_gpio *gpio = &sm->gpio; + int ret; + + if (!sm->gpio.registered) + return; + + ret = gpiochip_remove(&gpio->low.gpio); + if (ret) + dev_err(sm->dev, "cannot remove low chip, cannot tidy up\n"); + + ret = gpiochip_remove(&gpio->high.gpio); + if (ret) + dev_err(sm->dev, "cannot remove high chip, cannot tidy up\n"); + + iounmap(gpio->regs); + release_resource(gpio->regs_res); + kfree(gpio->regs_res); +} + +static inline int sm501_gpio_pin2nr(struct sm501_devdata *sm, unsigned int pin) +{ + struct sm501_gpio *gpio = &sm->gpio; + int base = (pin < 32) ? gpio->low.gpio.base : gpio->high.gpio.base; + + return (pin % 32) + base; +} + +static inline int sm501_gpio_isregistered(struct sm501_devdata *sm) +{ + return sm->gpio.registered; +} +#else +static inline int sm501_register_gpio(struct sm501_devdata *sm) +{ + return 0; +} + +static inline void sm501_gpio_remove(struct sm501_devdata *sm) +{ +} + +static inline int sm501_gpio_pin2nr(struct sm501_devdata *sm, unsigned int pin) +{ + return -1; +} + +static inline int sm501_gpio_isregistered(struct sm501_devdata *sm) +{ + return 0; +} +#endif + +static int sm501_register_gpio_i2c_instance(struct sm501_devdata *sm, + struct sm501_platdata_gpio_i2c *iic) +{ + struct i2c_gpio_platform_data *icd; + struct platform_device *pdev; + + pdev = sm501_create_subdev(sm, "i2c-gpio", 0, + sizeof(struct i2c_gpio_platform_data)); + if (!pdev) + return -ENOMEM; + + icd = pdev->dev.platform_data; + + /* We keep the pin_sda and pin_scl fields relative in case the + * same platform data is passed to >1 SM501. + */ + + icd->sda_pin = sm501_gpio_pin2nr(sm, iic->pin_sda); + icd->scl_pin = sm501_gpio_pin2nr(sm, iic->pin_scl); + icd->timeout = iic->timeout; + icd->udelay = iic->udelay; + + /* note, we can't use either of the pin numbers, as the i2c-gpio + * driver uses the platform.id field to generate the bus number + * to register with the i2c core; The i2c core doesn't have enough + * entries to deal with anything we currently use. + */ + + pdev->id = iic->bus_num; + + dev_info(sm->dev, "registering i2c-%d: sda=%d (%d), scl=%d (%d)\n", + iic->bus_num, + icd->sda_pin, iic->pin_sda, icd->scl_pin, iic->pin_scl); + + return sm501_register_device(sm, pdev); +} + +static int sm501_register_gpio_i2c(struct sm501_devdata *sm, + struct sm501_platdata *pdata) +{ + struct sm501_platdata_gpio_i2c *iic = pdata->gpio_i2c; + int index; + int ret; + + for (index = 0; index < pdata->gpio_i2c_nr; index++, iic++) { + ret = sm501_register_gpio_i2c_instance(sm, iic); + if (ret < 0) + return ret; + } + + return 0; +} + /* sm501_dbg_regs * * Debug attribute to attach to parent device to show core registers @@ -1013,6 +1298,7 @@ static unsigned int sm501_mem_local[] = { static int sm501_init_dev(struct sm501_devdata *sm) { struct sm501_initdata *idata; + struct sm501_platdata *pdata; resource_size_t mem_avail; unsigned long dramctrl; unsigned long devid; @@ -1051,7 +1337,9 @@ static int sm501_init_dev(struct sm501_devdata *sm) /* check to see if we have some device initialisation */ - idata = sm->platdata ? sm->platdata->init : NULL; + pdata = sm->platdata; + idata = pdata ? pdata->init : NULL; + if (idata) { sm501_init_regs(sm, idata); @@ -1059,6 +1347,15 @@ static int sm501_init_dev(struct sm501_devdata *sm) sm501_register_usbhost(sm, &mem_avail); if (idata->devices & (SM501_USE_UART0 | SM501_USE_UART1)) sm501_register_uart(sm, idata->devices); + if (idata->devices & SM501_USE_GPIO) + sm501_register_gpio(sm); + } + + if (pdata->gpio_i2c != NULL && pdata->gpio_i2c_nr > 0) { + if (!sm501_gpio_isregistered(sm)) + dev_err(sm->dev, "no gpio available for i2c gpio.\n"); + else + sm501_register_gpio_i2c(sm, pdata); } ret = sm501_check_clocks(sm); @@ -1138,8 +1435,31 @@ static int sm501_plat_probe(struct platform_device *dev) } #ifdef CONFIG_PM + /* power management support */ +static void sm501_set_power(struct sm501_devdata *sm, int on) +{ + struct sm501_platdata *pd = sm->platdata; + + if (pd == NULL) + return; + + if (pd->get_power) { + if (pd->get_power(sm->dev) == on) { + dev_dbg(sm->dev, "is already %d\n", on); + return; + } + } + + if (pd->set_power) { + dev_dbg(sm->dev, "setting power to %d\n", on); + + pd->set_power(sm->dev, on); + sm501_mdelay(sm, 10); + } +} + static int sm501_plat_suspend(struct platform_device *pdev, pm_message_t state) { struct sm501_devdata *sm = platform_get_drvdata(pdev); @@ -1148,6 +1468,12 @@ static int sm501_plat_suspend(struct platform_device *pdev, pm_message_t state) sm->pm_misc = readl(sm->regs + SM501_MISC_CONTROL); sm501_dump_regs(sm); + + if (sm->platdata) { + if (sm->platdata->flags & SM501_FLAG_SUSPEND_OFF) + sm501_set_power(sm, 0); + } + return 0; } @@ -1155,6 +1481,8 @@ static int sm501_plat_resume(struct platform_device *pdev) { struct sm501_devdata *sm = platform_get_drvdata(pdev); + sm501_set_power(sm, 1); + sm501_dump_regs(sm); sm501_dump_gate(sm); sm501_dump_clk(sm); @@ -1229,6 +1557,7 @@ static struct sm501_platdata_fb sm501_fb_pdata = { static struct sm501_platdata sm501_pci_platdata = { .init = &sm501_pci_initdata, .fb = &sm501_fb_pdata, + .gpio_base = -1, }; static int sm501_pci_probe(struct pci_dev *dev, @@ -1335,6 +1664,8 @@ static void sm501_dev_remove(struct sm501_devdata *sm) sm501_remove_sub(sm, smdev); device_remove_file(sm->dev, &dev_attr_dbg_regs); + + sm501_gpio_remove(sm); } static void sm501_pci_remove(struct pci_dev *dev) @@ -1378,6 +1709,8 @@ static struct pci_driver sm501_pci_drv = { .remove = sm501_pci_remove, }; +MODULE_ALIAS("platform:sm501"); + static struct platform_driver sm501_plat_drv = { .driver = { .name = "sm501", diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig index ce67d97..321eb91 100644 --- a/drivers/misc/Kconfig +++ b/drivers/misc/Kconfig @@ -77,11 +77,13 @@ config IBM_ASM for your IBM server. config PHANTOM - tristate "Sensable PHANToM" + tristate "Sensable PHANToM (PCI)" depends on PCI help Say Y here if you want to build a driver for Sensable PHANToM device. + This driver is only for PCI PHANToMs. + If you choose to build module, its name will be phantom. If unsure, say N here. @@ -212,6 +214,18 @@ config TC1100_WMI This is a driver for the WMI extensions (wireless and bluetooth power control) of the HP Compaq TC1100 tablet. +config HP_WMI + tristate "HP WMI extras" + depends on ACPI_WMI + depends on INPUT + depends on RFKILL + help + Say Y here if you want to support WMI-based hotkeys on HP laptops and + to read data from WMI such as docking or ambient light sensor state. + + To compile this driver as a module, choose M here: the module will + be called hp-wmi. + config MSI_LAPTOP tristate "MSI Laptop Extras" depends on X86 @@ -279,6 +293,8 @@ config THINKPAD_ACPI select INPUT select NEW_LEDS select LEDS_CLASS + select NET + select RFKILL ---help--- This is a driver for the IBM and Lenovo ThinkPad laptops. It adds support for Fn-Fx key combinations, Bluetooth control, video @@ -422,6 +438,7 @@ config SGI_XP config HP_ILO tristate "Channel interface driver for HP iLO/iLO2 processor" + depends on PCI default n help The channel interface driver allows applications to communicate diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile index 688fe76..f5e2734 100644 --- a/drivers/misc/Makefile +++ b/drivers/misc/Makefile @@ -13,6 +13,7 @@ obj-$(CONFIG_ACER_WMI) += acer-wmi.o obj-$(CONFIG_ATMEL_PWM) += atmel_pwm.o obj-$(CONFIG_ATMEL_SSC) += atmel-ssc.o obj-$(CONFIG_ATMEL_TCLIB) += atmel_tclib.o +obj-$(CONFIG_HP_WMI) += hp-wmi.o obj-$(CONFIG_TC1100_WMI) += tc1100-wmi.o obj-$(CONFIG_LKDTM) += lkdtm.o obj-$(CONFIG_TIFM_CORE) += tifm_core.o diff --git a/drivers/misc/atmel_pwm.c b/drivers/misc/atmel_pwm.c index 5b5a14d..6aa5294 100644 --- a/drivers/misc/atmel_pwm.c +++ b/drivers/misc/atmel_pwm.c @@ -211,8 +211,7 @@ int pwm_clk_alloc(unsigned prescale, unsigned div) if ((mr & 0xffff) == 0) { mr |= val; ret = PWM_CPR_CLKA; - } - if ((mr & (0xffff << 16)) == 0) { + } else if ((mr & (0xffff << 16)) == 0) { mr |= val << 16; ret = PWM_CPR_CLKB; } diff --git a/drivers/misc/hp-wmi.c b/drivers/misc/hp-wmi.c new file mode 100644 index 0000000..1dbcbcb --- /dev/null +++ b/drivers/misc/hp-wmi.c @@ -0,0 +1,494 @@ +/* + * HP WMI hotkeys + * + * Copyright (C) 2008 Red Hat <mjg@redhat.com> + * + * Portions based on wistron_btns.c: + * Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz> + * Copyright (C) 2005 Bernhard Rosenkraenzer <bero@arklinux.org> + * Copyright (C) 2005 Dmitry Torokhov <dtor@mail.ru> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/types.h> +#include <linux/input.h> +#include <acpi/acpi_drivers.h> +#include <linux/platform_device.h> +#include <linux/acpi.h> +#include <linux/rfkill.h> +#include <linux/string.h> + +MODULE_AUTHOR("Matthew Garrett <mjg59@srcf.ucam.org>"); +MODULE_DESCRIPTION("HP laptop WMI hotkeys driver"); +MODULE_LICENSE("GPL"); + +MODULE_ALIAS("wmi:95F24279-4D7B-4334-9387-ACCDC67EF61C"); +MODULE_ALIAS("wmi:5FB7F034-2C63-45e9-BE91-3D44E2C707E4"); + +#define HPWMI_EVENT_GUID "95F24279-4D7B-4334-9387-ACCDC67EF61C" +#define HPWMI_BIOS_GUID "5FB7F034-2C63-45e9-BE91-3D44E2C707E4" + +#define HPWMI_DISPLAY_QUERY 0x1 +#define HPWMI_HDDTEMP_QUERY 0x2 +#define HPWMI_ALS_QUERY 0x3 +#define HPWMI_DOCK_QUERY 0x4 +#define HPWMI_WIRELESS_QUERY 0x5 + +static int __init hp_wmi_bios_setup(struct platform_device *device); +static int __exit hp_wmi_bios_remove(struct platform_device *device); + +struct bios_args { + u32 signature; + u32 command; + u32 commandtype; + u32 datasize; + u32 data; +}; + +struct bios_return { + u32 sigpass; + u32 return_code; + u32 value; +}; + +struct key_entry { + char type; /* See KE_* below */ + u8 code; + u16 keycode; +}; + +enum { KE_KEY, KE_SW, KE_END }; + +static struct key_entry hp_wmi_keymap[] = { + {KE_SW, 0x01, SW_DOCK}, + {KE_KEY, 0x02, KEY_BRIGHTNESSUP}, + {KE_KEY, 0x03, KEY_BRIGHTNESSDOWN}, + {KE_KEY, 0x04, KEY_HELP}, + {KE_END, 0} +}; + +static struct input_dev *hp_wmi_input_dev; +static struct platform_device *hp_wmi_platform_dev; + +static struct rfkill *wifi_rfkill; +static struct rfkill *bluetooth_rfkill; +static struct rfkill *wwan_rfkill; + +static struct platform_driver hp_wmi_driver = { + .driver = { + .name = "hp-wmi", + .owner = THIS_MODULE, + }, + .probe = hp_wmi_bios_setup, + .remove = hp_wmi_bios_remove, +}; + +static int hp_wmi_perform_query(int query, int write, int value) +{ + struct bios_return bios_return; + acpi_status status; + union acpi_object *obj; + struct bios_args args = { + .signature = 0x55434553, + .command = write ? 0x2 : 0x1, + .commandtype = query, + .datasize = write ? 0x4 : 0, + .data = value, + }; + struct acpi_buffer input = { sizeof(struct bios_args), &args }; + struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; + + status = wmi_evaluate_method(HPWMI_BIOS_GUID, 0, 0x3, &input, &output); + + obj = output.pointer; + + if (!obj || obj->type != ACPI_TYPE_BUFFER) + return -EINVAL; + + bios_return = *((struct bios_return *)obj->buffer.pointer); + if (bios_return.return_code > 0) + return bios_return.return_code * -1; + else + return bios_return.value; +} + +static int hp_wmi_display_state(void) +{ + return hp_wmi_perform_query(HPWMI_DISPLAY_QUERY, 0, 0); +} + +static int hp_wmi_hddtemp_state(void) +{ + return hp_wmi_perform_query(HPWMI_HDDTEMP_QUERY, 0, 0); +} + +static int hp_wmi_als_state(void) +{ + return hp_wmi_perform_query(HPWMI_ALS_QUERY, 0, 0); +} + +static int hp_wmi_dock_state(void) +{ + return hp_wmi_perform_query(HPWMI_DOCK_QUERY, 0, 0); +} + +static int hp_wmi_wifi_set(void *data, enum rfkill_state state) +{ + if (state) + return hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, 0x101); + else + return hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, 0x100); +} + +static int hp_wmi_bluetooth_set(void *data, enum rfkill_state state) +{ + if (state) + return hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, 0x202); + else + return hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, 0x200); +} + +static int hp_wmi_wwan_set(void *data, enum rfkill_state state) +{ + if (state) + return hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, 0x404); + else + return hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, 0x400); +} + +static int hp_wmi_wifi_state(void) +{ + int wireless = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, 0); + + if (wireless & 0x100) + return 1; + else + return 0; +} + +static int hp_wmi_bluetooth_state(void) +{ + int wireless = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, 0); + + if (wireless & 0x10000) + return 1; + else + return 0; +} + +static int hp_wmi_wwan_state(void) +{ + int wireless = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, 0); + + if (wireless & 0x1000000) + return 1; + else + return 0; +} + +static ssize_t show_display(struct device *dev, struct device_attribute *attr, + char *buf) +{ + int value = hp_wmi_display_state(); + if (value < 0) + return -EINVAL; + return sprintf(buf, "%d\n", value); +} + +static ssize_t show_hddtemp(struct device *dev, struct device_attribute *attr, + char *buf) +{ + int value = hp_wmi_hddtemp_state(); + if (value < 0) + return -EINVAL; + return sprintf(buf, "%d\n", value); +} + +static ssize_t show_als(struct device *dev, struct device_attribute *attr, + char *buf) +{ + int value = hp_wmi_als_state(); + if (value < 0) + return -EINVAL; + return sprintf(buf, "%d\n", value); +} + +static ssize_t show_dock(struct device *dev, struct device_attribute *attr, + char *buf) +{ + int value = hp_wmi_dock_state(); + if (value < 0) + return -EINVAL; + return sprintf(buf, "%d\n", value); +} + +static ssize_t set_als(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + u32 tmp = simple_strtoul(buf, NULL, 10); + hp_wmi_perform_query(HPWMI_ALS_QUERY, 1, tmp); + return count; +} + +static DEVICE_ATTR(display, S_IRUGO, show_display, NULL); +static DEVICE_ATTR(hddtemp, S_IRUGO, show_hddtemp, NULL); +static DEVICE_ATTR(als, S_IRUGO | S_IWUSR, show_als, set_als); +static DEVICE_ATTR(dock, S_IRUGO, show_dock, NULL); + +static struct key_entry *hp_wmi_get_entry_by_scancode(int code) +{ + struct key_entry *key; + + for (key = hp_wmi_keymap; key->type != KE_END; key++) + if (code == key->code) + return key; + + return NULL; +} + +static struct key_entry *hp_wmi_get_entry_by_keycode(int keycode) +{ + struct key_entry *key; + + for (key = hp_wmi_keymap; key->type != KE_END; key++) + if (key->type == KE_KEY && keycode == key->keycode) + return key; + + return NULL; +} + +static int hp_wmi_getkeycode(struct input_dev *dev, int scancode, int *keycode) +{ + struct key_entry *key = hp_wmi_get_entry_by_scancode(scancode); + + if (key && key->type == KE_KEY) { + *keycode = key->keycode; + return 0; + } + + return -EINVAL; +} + +static int hp_wmi_setkeycode(struct input_dev *dev, int scancode, int keycode) +{ + struct key_entry *key; + int old_keycode; + + if (keycode < 0 || keycode > KEY_MAX) + return -EINVAL; + + key = hp_wmi_get_entry_by_scancode(scancode); + if (key && key->type == KE_KEY) { + old_keycode = key->keycode; + key->keycode = keycode; + set_bit(keycode, dev->keybit); + if (!hp_wmi_get_entry_by_keycode(old_keycode)) + clear_bit(old_keycode, dev->keybit); + return 0; + } + + return -EINVAL; +} + +void hp_wmi_notify(u32 value, void *context) +{ + struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL }; + static struct key_entry *key; + union acpi_object *obj; + + wmi_get_event_data(value, &response); + + obj = (union acpi_object *)response.pointer; + + if (obj && obj->type == ACPI_TYPE_BUFFER && obj->buffer.length == 8) { + int eventcode = *((u8 *) obj->buffer.pointer); + key = hp_wmi_get_entry_by_scancode(eventcode); + if (key) { + switch (key->type) { + case KE_KEY: + input_report_key(hp_wmi_input_dev, + key->keycode, 1); + input_sync(hp_wmi_input_dev); + input_report_key(hp_wmi_input_dev, + key->keycode, 0); + input_sync(hp_wmi_input_dev); + break; + case KE_SW: + input_report_switch(hp_wmi_input_dev, + key->keycode, + hp_wmi_dock_state()); + input_sync(hp_wmi_input_dev); + break; + } + } else if (eventcode == 0x5) { + if (wifi_rfkill) + wifi_rfkill->state = hp_wmi_wifi_state(); + if (bluetooth_rfkill) + bluetooth_rfkill->state = + hp_wmi_bluetooth_state(); + if (wwan_rfkill) + wwan_rfkill->state = hp_wmi_wwan_state(); + } else + printk(KERN_INFO "HP WMI: Unknown key pressed - %x\n", + eventcode); + } else + printk(KERN_INFO "HP WMI: Unknown response received\n"); +} + +static int __init hp_wmi_input_setup(void) +{ + struct key_entry *key; + int err; + + hp_wmi_input_dev = input_allocate_device(); + + hp_wmi_input_dev->name = "HP WMI hotkeys"; + hp_wmi_input_dev->phys = "wmi/input0"; + hp_wmi_input_dev->id.bustype = BUS_HOST; + hp_wmi_input_dev->getkeycode = hp_wmi_getkeycode; + hp_wmi_input_dev->setkeycode = hp_wmi_setkeycode; + + for (key = hp_wmi_keymap; key->type != KE_END; key++) { + switch (key->type) { + case KE_KEY: + set_bit(EV_KEY, hp_wmi_input_dev->evbit); + set_bit(key->keycode, hp_wmi_input_dev->keybit); + break; + case KE_SW: + set_bit(EV_SW, hp_wmi_input_dev->evbit); + set_bit(key->keycode, hp_wmi_input_dev->swbit); + break; + } + } + + err = input_register_device(hp_wmi_input_dev); + + if (err) { + input_free_device(hp_wmi_input_dev); + return err; + } + + return 0; +} + +static void cleanup_sysfs(struct platform_device *device) +{ + device_remove_file(&device->dev, &dev_attr_display); + device_remove_file(&device->dev, &dev_attr_hddtemp); + device_remove_file(&device->dev, &dev_attr_als); + device_remove_file(&device->dev, &dev_attr_dock); +} + +static int __init hp_wmi_bios_setup(struct platform_device *device) +{ + int err; + + err = device_create_file(&device->dev, &dev_attr_display); + if (err) + goto add_sysfs_error; + err = device_create_file(&device->dev, &dev_attr_hddtemp); + if (err) + goto add_sysfs_error; + err = device_create_file(&device->dev, &dev_attr_als); + if (err) + goto add_sysfs_error; + err = device_create_file(&device->dev, &dev_attr_dock); + if (err) + goto add_sysfs_error; + + wifi_rfkill = rfkill_allocate(&device->dev, RFKILL_TYPE_WLAN); + wifi_rfkill->name = "hp-wifi"; + wifi_rfkill->state = hp_wmi_wifi_state(); + wifi_rfkill->toggle_radio = hp_wmi_wifi_set; + wifi_rfkill->user_claim_unsupported = 1; + + bluetooth_rfkill = rfkill_allocate(&device->dev, + RFKILL_TYPE_BLUETOOTH); + bluetooth_rfkill->name = "hp-bluetooth"; + bluetooth_rfkill->state = hp_wmi_bluetooth_state(); + bluetooth_rfkill->toggle_radio = hp_wmi_bluetooth_set; + bluetooth_rfkill->user_claim_unsupported = 1; + + wwan_rfkill = rfkill_allocate(&device->dev, RFKILL_TYPE_WIMAX); + wwan_rfkill->name = "hp-wwan"; + wwan_rfkill->state = hp_wmi_wwan_state(); + wwan_rfkill->toggle_radio = hp_wmi_wwan_set; + wwan_rfkill->user_claim_unsupported = 1; + + rfkill_register(wifi_rfkill); + rfkill_register(bluetooth_rfkill); + rfkill_register(wwan_rfkill); + + return 0; +add_sysfs_error: + cleanup_sysfs(device); + return err; +} + +static int __exit hp_wmi_bios_remove(struct platform_device *device) +{ + cleanup_sysfs(device); + + rfkill_unregister(wifi_rfkill); + rfkill_unregister(bluetooth_rfkill); + rfkill_unregister(wwan_rfkill); + + return 0; +} + +static int __init hp_wmi_init(void) +{ + int err; + + if (wmi_has_guid(HPWMI_EVENT_GUID)) { + err = wmi_install_notify_handler(HPWMI_EVENT_GUID, + hp_wmi_notify, NULL); + if (!err) + hp_wmi_input_setup(); + } + + if (wmi_has_guid(HPWMI_BIOS_GUID)) { + err = platform_driver_register(&hp_wmi_driver); + if (err) + return 0; + hp_wmi_platform_dev = platform_device_alloc("hp-wmi", -1); + if (!hp_wmi_platform_dev) { + platform_driver_unregister(&hp_wmi_driver); + return 0; + } + platform_device_add(hp_wmi_platform_dev); + } + + return 0; +} + +static void __exit hp_wmi_exit(void) +{ + if (wmi_has_guid(HPWMI_EVENT_GUID)) { + wmi_remove_notify_handler(HPWMI_EVENT_GUID); + input_unregister_device(hp_wmi_input_dev); + } + if (hp_wmi_platform_dev) { + platform_device_del(hp_wmi_platform_dev); + platform_driver_unregister(&hp_wmi_driver); + } +} + +module_init(hp_wmi_init); +module_exit(hp_wmi_exit); diff --git a/drivers/misc/phantom.c b/drivers/misc/phantom.c index 4ce3bdc..daf5856 100644 --- a/drivers/misc/phantom.c +++ b/drivers/misc/phantom.c @@ -563,6 +563,6 @@ module_init(phantom_init); module_exit(phantom_exit); MODULE_AUTHOR("Jiri Slaby <jirislaby@gmail.com>"); -MODULE_DESCRIPTION("Sensable Phantom driver"); +MODULE_DESCRIPTION("Sensable Phantom driver (PCI devices)"); MODULE_LICENSE("GPL"); MODULE_VERSION(PHANTOM_VERSION); diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c index b596929..d3eb790 100644 --- a/drivers/misc/thinkpad_acpi.c +++ b/drivers/misc/thinkpad_acpi.c @@ -21,7 +21,7 @@ * 02110-1301, USA. */ -#define TPACPI_VERSION "0.20" +#define TPACPI_VERSION "0.21" #define TPACPI_SYSFS_VERSION 0x020200 /* @@ -68,6 +68,7 @@ #include <linux/hwmon-sysfs.h> #include <linux/input.h> #include <linux/leds.h> +#include <linux/rfkill.h> #include <asm/uaccess.h> #include <linux/dmi.h> @@ -144,6 +145,12 @@ enum { #define TPACPI_MAX_ACPI_ARGS 3 +/* rfkill switches */ +enum { + TPACPI_RFK_BLUETOOTH_SW_ID = 0, + TPACPI_RFK_WWAN_SW_ID, +}; + /* Debugging */ #define TPACPI_LOG TPACPI_FILE ": " #define TPACPI_ERR KERN_ERR TPACPI_LOG @@ -905,6 +912,43 @@ static int __init tpacpi_check_std_acpi_brightness_support(void) return 0; } +static int __init tpacpi_new_rfkill(const unsigned int id, + struct rfkill **rfk, + const enum rfkill_type rfktype, + const char *name, + int (*toggle_radio)(void *, enum rfkill_state), + int (*get_state)(void *, enum rfkill_state *)) +{ + int res; + enum rfkill_state initial_state; + + *rfk = rfkill_allocate(&tpacpi_pdev->dev, rfktype); + if (!*rfk) { + printk(TPACPI_ERR + "failed to allocate memory for rfkill class\n"); + return -ENOMEM; + } + + (*rfk)->name = name; + (*rfk)->get_state = get_state; + (*rfk)->toggle_radio = toggle_radio; + + if (!get_state(NULL, &initial_state)) + (*rfk)->state = initial_state; + + res = rfkill_register(*rfk); + if (res < 0) { + printk(TPACPI_ERR + "failed to register %s rfkill switch: %d\n", + name, res); + rfkill_free(*rfk); + *rfk = NULL; + return res; + } + + return 0; +} + /************************************************************************* * thinkpad-acpi driver attributes */ @@ -1285,21 +1329,6 @@ static int hotkey_status_set(int status) return 0; } -static void tpacpi_input_send_radiosw(void) -{ - int wlsw; - - if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw)) { - mutex_lock(&tpacpi_inputdev_send_mutex); - - input_report_switch(tpacpi_inputdev, - SW_RFKILL_ALL, !!wlsw); - input_sync(tpacpi_inputdev); - - mutex_unlock(&tpacpi_inputdev_send_mutex); - } -} - static void tpacpi_input_send_tabletsw(void) { int state; @@ -1921,6 +1950,30 @@ static struct attribute *hotkey_mask_attributes[] __initdata = { &dev_attr_hotkey_wakeup_hotunplug_complete.attr, }; +static void bluetooth_update_rfk(void); +static void wan_update_rfk(void); +static void tpacpi_send_radiosw_update(void) +{ + int wlsw; + + /* Sync these BEFORE sending any rfkill events */ + if (tp_features.bluetooth) + bluetooth_update_rfk(); + if (tp_features.wan) + wan_update_rfk(); + + if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw)) { + mutex_lock(&tpacpi_inputdev_send_mutex); + + input_report_switch(tpacpi_inputdev, + SW_RFKILL_ALL, !!wlsw); + input_sync(tpacpi_inputdev); + + mutex_unlock(&tpacpi_inputdev_send_mutex); + } + hotkey_radio_sw_notify_change(); +} + static void hotkey_exit(void) { #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL @@ -2167,9 +2220,10 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) printk(TPACPI_INFO "radio switch found; radios are %s\n", enabled(status, 0)); + } + if (tp_features.hotkey_wlsw) res = add_to_attr_set(hotkey_dev_attributes, &dev_attr_hotkey_radio_sw.attr); - } /* For X41t, X60t, X61t Tablets... */ if (!res && acpi_evalf(hkey_handle, &status, "MHKG", "qd")) { @@ -2287,7 +2341,7 @@ static int __init hotkey_init(struct ibm_init_struct *iibm) tpacpi_inputdev->close = &hotkey_inputdev_close; hotkey_poll_setup_safe(1); - tpacpi_input_send_radiosw(); + tpacpi_send_radiosw_update(); tpacpi_input_send_tabletsw(); return 0; @@ -2419,8 +2473,7 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event) case 7: /* 0x7000-0x7FFF: misc */ if (tp_features.hotkey_wlsw && hkey == 0x7000) { - tpacpi_input_send_radiosw(); - hotkey_radio_sw_notify_change(); + tpacpi_send_radiosw_update(); send_acpi_ev = 0; break; } @@ -2463,8 +2516,7 @@ static void hotkey_resume(void) printk(TPACPI_ERR "error while trying to read hot key mask " "from firmware\n"); - tpacpi_input_send_radiosw(); - hotkey_radio_sw_notify_change(); + tpacpi_send_radiosw_update(); hotkey_tablet_mode_notify_change(); hotkey_wakeup_reason_notify_change(); hotkey_wakeup_hotunplug_complete_notify_change(); @@ -2581,8 +2633,66 @@ enum { TP_ACPI_BLUETOOTH_UNK = 0x04, /* unknown function */ }; -static int bluetooth_get_radiosw(void); -static int bluetooth_set_radiosw(int radio_on); +static struct rfkill *tpacpi_bluetooth_rfkill; + +static int bluetooth_get_radiosw(void) +{ + int status; + + if (!tp_features.bluetooth) + return -ENODEV; + + /* WLSW overrides bluetooth in firmware/hardware, reflect that */ + if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status) + return RFKILL_STATE_HARD_BLOCKED; + + if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) + return -EIO; + + return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0) ? + RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED; +} + +static void bluetooth_update_rfk(void) +{ + int status; + + if (!tpacpi_bluetooth_rfkill) + return; + + status = bluetooth_get_radiosw(); + if (status < 0) + return; + rfkill_force_state(tpacpi_bluetooth_rfkill, status); +} + +static int bluetooth_set_radiosw(int radio_on, int update_rfk) +{ + int status; + + if (!tp_features.bluetooth) + return -ENODEV; + + /* WLSW overrides bluetooth in firmware/hardware, but there is no + * reason to risk weird behaviour. */ + if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status + && radio_on) + return -EPERM; + + if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) + return -EIO; + if (radio_on) + status |= TP_ACPI_BLUETOOTH_RADIOSSW; + else + status &= ~TP_ACPI_BLUETOOTH_RADIOSSW; + if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) + return -EIO; + + if (update_rfk) + bluetooth_update_rfk(); + + return 0; +} /* sysfs bluetooth enable ---------------------------------------------- */ static ssize_t bluetooth_enable_show(struct device *dev, @@ -2595,7 +2705,8 @@ static ssize_t bluetooth_enable_show(struct device *dev, if (status < 0) return status; - return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0); + return snprintf(buf, PAGE_SIZE, "%d\n", + (status == RFKILL_STATE_UNBLOCKED) ? 1 : 0); } static ssize_t bluetooth_enable_store(struct device *dev, @@ -2608,7 +2719,7 @@ static ssize_t bluetooth_enable_store(struct device *dev, if (parse_strtoul(buf, 1, &t)) return -EINVAL; - res = bluetooth_set_radiosw(t); + res = bluetooth_set_radiosw(t, 1); return (res) ? res : count; } @@ -2628,6 +2739,31 @@ static const struct attribute_group bluetooth_attr_group = { .attrs = bluetooth_attributes, }; +static int tpacpi_bluetooth_rfk_get(void *data, enum rfkill_state *state) +{ + int bts = bluetooth_get_radiosw(); + + if (bts < 0) + return bts; + + *state = bts; + return 0; +} + +static int tpacpi_bluetooth_rfk_set(void *data, enum rfkill_state state) +{ + return bluetooth_set_radiosw((state == RFKILL_STATE_UNBLOCKED), 0); +} + +static void bluetooth_exit(void) +{ + if (tpacpi_bluetooth_rfkill) + rfkill_unregister(tpacpi_bluetooth_rfkill); + + sysfs_remove_group(&tpacpi_pdev->dev.kobj, + &bluetooth_attr_group); +} + static int __init bluetooth_init(struct ibm_init_struct *iibm) { int res; @@ -2646,57 +2782,32 @@ static int __init bluetooth_init(struct ibm_init_struct *iibm) str_supported(tp_features.bluetooth), status); - if (tp_features.bluetooth) { - if (!(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { - /* no bluetooth hardware present in system */ - tp_features.bluetooth = 0; - dbg_printk(TPACPI_DBG_INIT, - "bluetooth hardware not installed\n"); - } else { - res = sysfs_create_group(&tpacpi_pdev->dev.kobj, - &bluetooth_attr_group); - if (res) - return res; - } + if (tp_features.bluetooth && + !(status & TP_ACPI_BLUETOOTH_HWPRESENT)) { + /* no bluetooth hardware present in system */ + tp_features.bluetooth = 0; + dbg_printk(TPACPI_DBG_INIT, + "bluetooth hardware not installed\n"); } - return (tp_features.bluetooth)? 0 : 1; -} - -static void bluetooth_exit(void) -{ - sysfs_remove_group(&tpacpi_pdev->dev.kobj, - &bluetooth_attr_group); -} - -static int bluetooth_get_radiosw(void) -{ - int status; - if (!tp_features.bluetooth) - return -ENODEV; - - if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) - return -EIO; - - return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0); -} - -static int bluetooth_set_radiosw(int radio_on) -{ - int status; + return 1; - if (!tp_features.bluetooth) - return -ENODEV; + res = sysfs_create_group(&tpacpi_pdev->dev.kobj, + &bluetooth_attr_group); + if (res) + return res; - if (!acpi_evalf(hkey_handle, &status, "GBDC", "d")) - return -EIO; - if (radio_on) - status |= TP_ACPI_BLUETOOTH_RADIOSSW; - else - status &= ~TP_ACPI_BLUETOOTH_RADIOSSW; - if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status)) - return -EIO; + res = tpacpi_new_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID, + &tpacpi_bluetooth_rfkill, + RFKILL_TYPE_BLUETOOTH, + "tpacpi_bluetooth_sw", + tpacpi_bluetooth_rfk_set, + tpacpi_bluetooth_rfk_get); + if (res) { + bluetooth_exit(); + return res; + } return 0; } @@ -2711,7 +2822,8 @@ static int bluetooth_read(char *p) len += sprintf(p + len, "status:\t\tnot supported\n"); else { len += sprintf(p + len, "status:\t\t%s\n", - (status)? "enabled" : "disabled"); + (status == RFKILL_STATE_UNBLOCKED) ? + "enabled" : "disabled"); len += sprintf(p + len, "commands:\tenable, disable\n"); } @@ -2727,9 +2839,9 @@ static int bluetooth_write(char *buf) while ((cmd = next_cmd(&buf))) { if (strlencmp(cmd, "enable") == 0) { - bluetooth_set_radiosw(1); + bluetooth_set_radiosw(1, 1); } else if (strlencmp(cmd, "disable") == 0) { - bluetooth_set_radiosw(0); + bluetooth_set_radiosw(0, 1); } else return -EINVAL; } @@ -2755,8 +2867,66 @@ enum { TP_ACPI_WANCARD_UNK = 0x04, /* unknown function */ }; -static int wan_get_radiosw(void); -static int wan_set_radiosw(int radio_on); +static struct rfkill *tpacpi_wan_rfkill; + +static int wan_get_radiosw(void) +{ + int status; + + if (!tp_features.wan) + return -ENODEV; + + /* WLSW overrides WWAN in firmware/hardware, reflect that */ + if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status) + return RFKILL_STATE_HARD_BLOCKED; + + if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) + return -EIO; + + return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0) ? + RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED; +} + +static void wan_update_rfk(void) +{ + int status; + + if (!tpacpi_wan_rfkill) + return; + + status = wan_get_radiosw(); + if (status < 0) + return; + rfkill_force_state(tpacpi_wan_rfkill, status); +} + +static int wan_set_radiosw(int radio_on, int update_rfk) +{ + int status; + + if (!tp_features.wan) + return -ENODEV; + + /* WLSW overrides bluetooth in firmware/hardware, but there is no + * reason to risk weird behaviour. */ + if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status + && radio_on) + return -EPERM; + + if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) + return -EIO; + if (radio_on) + status |= TP_ACPI_WANCARD_RADIOSSW; + else + status &= ~TP_ACPI_WANCARD_RADIOSSW; + if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) + return -EIO; + + if (update_rfk) + wan_update_rfk(); + + return 0; +} /* sysfs wan enable ---------------------------------------------------- */ static ssize_t wan_enable_show(struct device *dev, @@ -2769,7 +2939,8 @@ static ssize_t wan_enable_show(struct device *dev, if (status < 0) return status; - return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0); + return snprintf(buf, PAGE_SIZE, "%d\n", + (status == RFKILL_STATE_UNBLOCKED) ? 1 : 0); } static ssize_t wan_enable_store(struct device *dev, @@ -2782,7 +2953,7 @@ static ssize_t wan_enable_store(struct device *dev, if (parse_strtoul(buf, 1, &t)) return -EINVAL; - res = wan_set_radiosw(t); + res = wan_set_radiosw(t, 1); return (res) ? res : count; } @@ -2802,6 +2973,31 @@ static const struct attribute_group wan_attr_group = { .attrs = wan_attributes, }; +static int tpacpi_wan_rfk_get(void *data, enum rfkill_state *state) +{ + int wans = wan_get_radiosw(); + + if (wans < 0) + return wans; + + *state = wans; + return 0; +} + +static int tpacpi_wan_rfk_set(void *data, enum rfkill_state state) +{ + return wan_set_radiosw((state == RFKILL_STATE_UNBLOCKED), 0); +} + +static void wan_exit(void) +{ + if (tpacpi_wan_rfkill) + rfkill_unregister(tpacpi_wan_rfkill); + + sysfs_remove_group(&tpacpi_pdev->dev.kobj, + &wan_attr_group); +} + static int __init wan_init(struct ibm_init_struct *iibm) { int res; @@ -2818,57 +3014,32 @@ static int __init wan_init(struct ibm_init_struct *iibm) str_supported(tp_features.wan), status); - if (tp_features.wan) { - if (!(status & TP_ACPI_WANCARD_HWPRESENT)) { - /* no wan hardware present in system */ - tp_features.wan = 0; - dbg_printk(TPACPI_DBG_INIT, - "wan hardware not installed\n"); - } else { - res = sysfs_create_group(&tpacpi_pdev->dev.kobj, - &wan_attr_group); - if (res) - return res; - } + if (tp_features.wan && + !(status & TP_ACPI_WANCARD_HWPRESENT)) { + /* no wan hardware present in system */ + tp_features.wan = 0; + dbg_printk(TPACPI_DBG_INIT, + "wan hardware not installed\n"); } - return (tp_features.wan)? 0 : 1; -} - -static void wan_exit(void) -{ - sysfs_remove_group(&tpacpi_pdev->dev.kobj, - &wan_attr_group); -} - -static int wan_get_radiosw(void) -{ - int status; - if (!tp_features.wan) - return -ENODEV; - - if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) - return -EIO; - - return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0); -} - -static int wan_set_radiosw(int radio_on) -{ - int status; + return 1; - if (!tp_features.wan) - return -ENODEV; + res = sysfs_create_group(&tpacpi_pdev->dev.kobj, + &wan_attr_group); + if (res) + return res; - if (!acpi_evalf(hkey_handle, &status, "GWAN", "d")) - return -EIO; - if (radio_on) - status |= TP_ACPI_WANCARD_RADIOSSW; - else - status &= ~TP_ACPI_WANCARD_RADIOSSW; - if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) - return -EIO; + res = tpacpi_new_rfkill(TPACPI_RFK_WWAN_SW_ID, + &tpacpi_wan_rfkill, + RFKILL_TYPE_WWAN, + "tpacpi_wwan_sw", + tpacpi_wan_rfk_set, + tpacpi_wan_rfk_get); + if (res) { + wan_exit(); + return res; + } return 0; } @@ -2883,7 +3054,8 @@ static int wan_read(char *p) len += sprintf(p + len, "status:\t\tnot supported\n"); else { len += sprintf(p + len, "status:\t\t%s\n", - (status)? "enabled" : "disabled"); + (status == RFKILL_STATE_UNBLOCKED) ? + "enabled" : "disabled"); len += sprintf(p + len, "commands:\tenable, disable\n"); } @@ -2899,9 +3071,9 @@ static int wan_write(char *buf) while ((cmd = next_cmd(&buf))) { if (strlencmp(cmd, "enable") == 0) { - wan_set_radiosw(1); + wan_set_radiosw(1, 1); } else if (strlencmp(cmd, "disable") == 0) { - wan_set_radiosw(0); + wan_set_radiosw(0, 1); } else return -EINVAL; } @@ -6168,13 +6340,18 @@ err_out: /* Probing */ -static void __init get_thinkpad_model_data(struct thinkpad_id_data *tp) +/* returns 0 - probe ok, or < 0 - probe error. + * Probe ok doesn't mean thinkpad found. + * On error, kfree() cleanup on tp->* is not performed, caller must do it */ +static int __must_check __init get_thinkpad_model_data( + struct thinkpad_id_data *tp) { const struct dmi_device *dev = NULL; char ec_fw_string[18]; + char const *s; if (!tp) - return; + return -EINVAL; memset(tp, 0, sizeof(*tp)); @@ -6183,12 +6360,14 @@ static void __init get_thinkpad_model_data(struct thinkpad_id_data *tp) else if (dmi_name_in_vendors("LENOVO")) tp->vendor = PCI_VENDOR_ID_LENOVO; else - return; + return 0; - tp->bios_version_str = kstrdup(dmi_get_system_info(DMI_BIOS_VERSION), - GFP_KERNEL); + s = dmi_get_system_info(DMI_BIOS_VERSION); + tp->bios_version_str = kstrdup(s, GFP_KERNEL); + if (s && !tp->bios_version_str) + return -ENOMEM; if (!tp->bios_version_str) - return; + return 0; tp->bios_model = tp->bios_version_str[0] | (tp->bios_version_str[1] << 8); @@ -6207,21 +6386,27 @@ static void __init get_thinkpad_model_data(struct thinkpad_id_data *tp) ec_fw_string[strcspn(ec_fw_string, " ]")] = 0; tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL); + if (!tp->ec_version_str) + return -ENOMEM; tp->ec_model = ec_fw_string[0] | (ec_fw_string[1] << 8); break; } } - tp->model_str = kstrdup(dmi_get_system_info(DMI_PRODUCT_VERSION), - GFP_KERNEL); - if (tp->model_str && strnicmp(tp->model_str, "ThinkPad", 8) != 0) { - kfree(tp->model_str); - tp->model_str = NULL; + s = dmi_get_system_info(DMI_PRODUCT_VERSION); + if (s && !strnicmp(s, "ThinkPad", 8)) { + tp->model_str = kstrdup(s, GFP_KERNEL); + if (!tp->model_str) + return -ENOMEM; } - tp->nummodel_str = kstrdup(dmi_get_system_info(DMI_PRODUCT_NAME), - GFP_KERNEL); + s = dmi_get_system_info(DMI_PRODUCT_NAME); + tp->nummodel_str = kstrdup(s, GFP_KERNEL); + if (s && !tp->nummodel_str) + return -ENOMEM; + + return 0; } static int __init probe_for_thinkpad(void) @@ -6484,7 +6669,13 @@ static int __init thinkpad_acpi_module_init(void) /* Driver-level probe */ - get_thinkpad_model_data(&thinkpad_id); + ret = get_thinkpad_model_data(&thinkpad_id); + if (ret) { + printk(TPACPI_ERR + "unable to get DMI data: %d\n", ret); + thinkpad_acpi_module_exit(); + return ret; + } ret = probe_for_thinkpad(); if (ret) { thinkpad_acpi_module_exit(); diff --git a/drivers/mmc/core/Makefile b/drivers/mmc/core/Makefile index 19a1a25..889e5f8 100644 --- a/drivers/mmc/core/Makefile +++ b/drivers/mmc/core/Makefile @@ -12,3 +12,4 @@ mmc_core-y := core.o bus.o host.o \ sdio.o sdio_ops.o sdio_bus.o \ sdio_cis.o sdio_io.o sdio_irq.o +mmc_core-$(CONFIG_DEBUG_FS) += debugfs.o diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c index fd95b18..0d9b2d6 100644 --- a/drivers/mmc/core/bus.c +++ b/drivers/mmc/core/bus.c @@ -252,6 +252,10 @@ int mmc_add_card(struct mmc_card *card) if (ret) return ret; +#ifdef CONFIG_DEBUG_FS + mmc_add_card_debugfs(card); +#endif + mmc_card_set_present(card); return 0; @@ -263,6 +267,10 @@ int mmc_add_card(struct mmc_card *card) */ void mmc_remove_card(struct mmc_card *card) { +#ifdef CONFIG_DEBUG_FS + mmc_remove_card_debugfs(card); +#endif + if (mmc_card_present(card)) { if (mmc_host_is_spi(card->host)) { printk(KERN_INFO "%s: SPI card removed\n", diff --git a/drivers/mmc/core/core.h b/drivers/mmc/core/core.h index cdb332b..c819eff 100644 --- a/drivers/mmc/core/core.h +++ b/drivers/mmc/core/core.h @@ -52,5 +52,12 @@ int mmc_attach_sdio(struct mmc_host *host, u32 ocr); extern int use_spi_crc; +/* Debugfs information for hosts and cards */ +void mmc_add_host_debugfs(struct mmc_host *host); +void mmc_remove_host_debugfs(struct mmc_host *host); + +void mmc_add_card_debugfs(struct mmc_card *card); +void mmc_remove_card_debugfs(struct mmc_card *card); + #endif diff --git a/drivers/mmc/core/debugfs.c b/drivers/mmc/core/debugfs.c new file mode 100644 index 0000000..1237bb4 --- /dev/null +++ b/drivers/mmc/core/debugfs.c @@ -0,0 +1,225 @@ +/* + * Debugfs support for hosts and cards + * + * Copyright (C) 2008 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/debugfs.h> +#include <linux/fs.h> +#include <linux/seq_file.h> +#include <linux/stat.h> + +#include <linux/mmc/card.h> +#include <linux/mmc/host.h> + +#include "core.h" +#include "mmc_ops.h" + +/* The debugfs functions are optimized away when CONFIG_DEBUG_FS isn't set. */ +static int mmc_ios_show(struct seq_file *s, void *data) +{ + static const char *vdd_str[] = { + [8] = "2.0", + [9] = "2.1", + [10] = "2.2", + [11] = "2.3", + [12] = "2.4", + [13] = "2.5", + [14] = "2.6", + [15] = "2.7", + [16] = "2.8", + [17] = "2.9", + [18] = "3.0", + [19] = "3.1", + [20] = "3.2", + [21] = "3.3", + [22] = "3.4", + [23] = "3.5", + [24] = "3.6", + }; + struct mmc_host *host = s->private; + struct mmc_ios *ios = &host->ios; + const char *str; + + seq_printf(s, "clock:\t\t%u Hz\n", ios->clock); + seq_printf(s, "vdd:\t\t%u ", ios->vdd); + if ((1 << ios->vdd) & MMC_VDD_165_195) + seq_printf(s, "(1.65 - 1.95 V)\n"); + else if (ios->vdd < (ARRAY_SIZE(vdd_str) - 1) + && vdd_str[ios->vdd] && vdd_str[ios->vdd + 1]) + seq_printf(s, "(%s ~ %s V)\n", vdd_str[ios->vdd], + vdd_str[ios->vdd + 1]); + else + seq_printf(s, "(invalid)\n"); + + switch (ios->bus_mode) { + case MMC_BUSMODE_OPENDRAIN: + str = "open drain"; + break; + case MMC_BUSMODE_PUSHPULL: + str = "push-pull"; + break; + default: + str = "invalid"; + break; + } + seq_printf(s, "bus mode:\t%u (%s)\n", ios->bus_mode, str); + + switch (ios->chip_select) { + case MMC_CS_DONTCARE: + str = "don't care"; + break; + case MMC_CS_HIGH: + str = "active high"; + break; + case MMC_CS_LOW: + str = "active low"; + break; + default: + str = "invalid"; + break; + } + seq_printf(s, "chip select:\t%u (%s)\n", ios->chip_select, str); + + switch (ios->power_mode) { + case MMC_POWER_OFF: + str = "off"; + break; + case MMC_POWER_UP: + str = "up"; + break; + case MMC_POWER_ON: + str = "on"; + break; + default: + str = "invalid"; + break; + } + seq_printf(s, "power mode:\t%u (%s)\n", ios->power_mode, str); + seq_printf(s, "bus width:\t%u (%u bits)\n", + ios->bus_width, 1 << ios->bus_width); + + switch (ios->timing) { + case MMC_TIMING_LEGACY: + str = "legacy"; + break; + case MMC_TIMING_MMC_HS: + str = "mmc high-speed"; + break; + case MMC_TIMING_SD_HS: + str = "sd high-speed"; + break; + default: + str = "invalid"; + break; + } + seq_printf(s, "timing spec:\t%u (%s)\n", ios->timing, str); + + return 0; +} + +static int mmc_ios_open(struct inode *inode, struct file *file) +{ + return single_open(file, mmc_ios_show, inode->i_private); +} + +static const struct file_operations mmc_ios_fops = { + .open = mmc_ios_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +void mmc_add_host_debugfs(struct mmc_host *host) +{ + struct dentry *root; + + root = debugfs_create_dir(mmc_hostname(host), NULL); + if (IS_ERR(root)) + /* Don't complain -- debugfs just isn't enabled */ + return; + if (!root) + /* Complain -- debugfs is enabled, but it failed to + * create the directory. */ + goto err_root; + + host->debugfs_root = root; + + if (!debugfs_create_file("ios", S_IRUSR, root, host, &mmc_ios_fops)) + goto err_ios; + + return; + +err_ios: + debugfs_remove_recursive(root); + host->debugfs_root = NULL; +err_root: + dev_err(&host->class_dev, "failed to initialize debugfs\n"); +} + +void mmc_remove_host_debugfs(struct mmc_host *host) +{ + debugfs_remove_recursive(host->debugfs_root); +} + +static int mmc_dbg_card_status_get(void *data, u64 *val) +{ + struct mmc_card *card = data; + u32 status; + int ret; + + mmc_claim_host(card->host); + + ret = mmc_send_status(data, &status); + if (!ret) + *val = status; + + mmc_release_host(card->host); + + return ret; +} +DEFINE_SIMPLE_ATTRIBUTE(mmc_dbg_card_status_fops, mmc_dbg_card_status_get, + NULL, "%08llx\n"); + +void mmc_add_card_debugfs(struct mmc_card *card) +{ + struct mmc_host *host = card->host; + struct dentry *root; + + if (!host->debugfs_root) + return; + + root = debugfs_create_dir(mmc_card_id(card), host->debugfs_root); + if (IS_ERR(root)) + /* Don't complain -- debugfs just isn't enabled */ + return; + if (!root) + /* Complain -- debugfs is enabled, but it failed to + * create the directory. */ + goto err; + + card->debugfs_root = root; + + if (!debugfs_create_x32("state", S_IRUSR, root, &card->state)) + goto err; + + if (mmc_card_mmc(card) || mmc_card_sd(card)) + if (!debugfs_create_file("status", S_IRUSR, root, card, + &mmc_dbg_card_status_fops)) + goto err; + + return; + +err: + debugfs_remove_recursive(root); + card->debugfs_root = NULL; + dev_err(&card->dev, "failed to initialize debugfs\n"); +} + +void mmc_remove_card_debugfs(struct mmc_card *card) +{ + debugfs_remove_recursive(card->debugfs_root); +} diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c index 1d795c5..6da80fd4 100644 --- a/drivers/mmc/core/host.c +++ b/drivers/mmc/core/host.c @@ -127,6 +127,10 @@ int mmc_add_host(struct mmc_host *host) if (err) return err; +#ifdef CONFIG_DEBUG_FS + mmc_add_host_debugfs(host); +#endif + mmc_start_host(host); return 0; @@ -146,6 +150,10 @@ void mmc_remove_host(struct mmc_host *host) { mmc_stop_host(host); +#ifdef CONFIG_DEBUG_FS + mmc_remove_host_debugfs(host); +#endif + device_del(&host->class_dev); led_trigger_unregister_simple(host->led); diff --git a/drivers/mmc/host/atmel-mci-regs.h b/drivers/mmc/host/atmel-mci-regs.h index a9a5657..26bd80e 100644 --- a/drivers/mmc/host/atmel-mci-regs.h +++ b/drivers/mmc/host/atmel-mci-regs.h @@ -82,6 +82,8 @@ # define MCI_OVRE ( 1 << 30) /* RX Overrun Error */ # define MCI_UNRE ( 1 << 31) /* TX Underrun Error */ +#define MCI_REGS_SIZE 0x100 + /* Register access macros */ #define mci_readl(port,reg) \ __raw_readl((port)->regs + MCI_##reg) diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c index cce873c..b68381f 100644 --- a/drivers/mmc/host/atmel-mci.c +++ b/drivers/mmc/host/atmel-mci.c @@ -9,6 +9,7 @@ */ #include <linux/blkdev.h> #include <linux/clk.h> +#include <linux/debugfs.h> #include <linux/device.h> #include <linux/init.h> #include <linux/interrupt.h> @@ -16,6 +17,8 @@ #include <linux/module.h> #include <linux/platform_device.h> #include <linux/scatterlist.h> +#include <linux/seq_file.h> +#include <linux/stat.h> #include <linux/mmc/host.h> @@ -88,6 +91,188 @@ struct atmel_mci { #define atmci_clear_pending(host, event) \ clear_bit(event, &host->pending_events) +/* + * The debugfs stuff below is mostly optimized away when + * CONFIG_DEBUG_FS is not set. + */ +static int atmci_req_show(struct seq_file *s, void *v) +{ + struct atmel_mci *host = s->private; + struct mmc_request *mrq = host->mrq; + struct mmc_command *cmd; + struct mmc_command *stop; + struct mmc_data *data; + + /* Make sure we get a consistent snapshot */ + spin_lock_irq(&host->mmc->lock); + + if (mrq) { + cmd = mrq->cmd; + data = mrq->data; + stop = mrq->stop; + + if (cmd) + seq_printf(s, + "CMD%u(0x%x) flg %x rsp %x %x %x %x err %d\n", + cmd->opcode, cmd->arg, cmd->flags, + cmd->resp[0], cmd->resp[1], cmd->resp[2], + cmd->resp[2], cmd->error); + if (data) + seq_printf(s, "DATA %u / %u * %u flg %x err %d\n", + data->bytes_xfered, data->blocks, + data->blksz, data->flags, data->error); + if (stop) + seq_printf(s, + "CMD%u(0x%x) flg %x rsp %x %x %x %x err %d\n", + stop->opcode, stop->arg, stop->flags, + stop->resp[0], stop->resp[1], stop->resp[2], + stop->resp[2], stop->error); + } + + spin_unlock_irq(&host->mmc->lock); + + return 0; +} + +static int atmci_req_open(struct inode *inode, struct file *file) +{ + return single_open(file, atmci_req_show, inode->i_private); +} + +static const struct file_operations atmci_req_fops = { + .owner = THIS_MODULE, + .open = atmci_req_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static void atmci_show_status_reg(struct seq_file *s, + const char *regname, u32 value) +{ + static const char *sr_bit[] = { + [0] = "CMDRDY", + [1] = "RXRDY", + [2] = "TXRDY", + [3] = "BLKE", + [4] = "DTIP", + [5] = "NOTBUSY", + [8] = "SDIOIRQA", + [9] = "SDIOIRQB", + [16] = "RINDE", + [17] = "RDIRE", + [18] = "RCRCE", + [19] = "RENDE", + [20] = "RTOE", + [21] = "DCRCE", + [22] = "DTOE", + [30] = "OVRE", + [31] = "UNRE", + }; + unsigned int i; + + seq_printf(s, "%s:\t0x%08x", regname, value); + for (i = 0; i < ARRAY_SIZE(sr_bit); i++) { + if (value & (1 << i)) { + if (sr_bit[i]) + seq_printf(s, " %s", sr_bit[i]); + else + seq_puts(s, " UNKNOWN"); + } + } + seq_putc(s, '\n'); +} + +static int atmci_regs_show(struct seq_file *s, void *v) +{ + struct atmel_mci *host = s->private; + u32 *buf; + + buf = kmalloc(MCI_REGS_SIZE, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + /* Grab a more or less consistent snapshot */ + spin_lock_irq(&host->mmc->lock); + memcpy_fromio(buf, host->regs, MCI_REGS_SIZE); + spin_unlock_irq(&host->mmc->lock); + + seq_printf(s, "MR:\t0x%08x%s%s CLKDIV=%u\n", + buf[MCI_MR / 4], + buf[MCI_MR / 4] & MCI_MR_RDPROOF ? " RDPROOF" : "", + buf[MCI_MR / 4] & MCI_MR_WRPROOF ? " WRPROOF" : "", + buf[MCI_MR / 4] & 0xff); + seq_printf(s, "DTOR:\t0x%08x\n", buf[MCI_DTOR / 4]); + seq_printf(s, "SDCR:\t0x%08x\n", buf[MCI_SDCR / 4]); + seq_printf(s, "ARGR:\t0x%08x\n", buf[MCI_ARGR / 4]); + seq_printf(s, "BLKR:\t0x%08x BCNT=%u BLKLEN=%u\n", + buf[MCI_BLKR / 4], + buf[MCI_BLKR / 4] & 0xffff, + (buf[MCI_BLKR / 4] >> 16) & 0xffff); + + /* Don't read RSPR and RDR; it will consume the data there */ + + atmci_show_status_reg(s, "SR", buf[MCI_SR / 4]); + atmci_show_status_reg(s, "IMR", buf[MCI_IMR / 4]); + + return 0; +} + +static int atmci_regs_open(struct inode *inode, struct file *file) +{ + return single_open(file, atmci_regs_show, inode->i_private); +} + +static const struct file_operations atmci_regs_fops = { + .owner = THIS_MODULE, + .open = atmci_regs_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static void atmci_init_debugfs(struct atmel_mci *host) +{ + struct mmc_host *mmc; + struct dentry *root; + struct dentry *node; + struct resource *res; + + mmc = host->mmc; + root = mmc->debugfs_root; + if (!root) + return; + + node = debugfs_create_file("regs", S_IRUSR, root, host, + &atmci_regs_fops); + if (IS_ERR(node)) + return; + if (!node) + goto err; + + res = platform_get_resource(host->pdev, IORESOURCE_MEM, 0); + node->d_inode->i_size = res->end - res->start + 1; + + node = debugfs_create_file("req", S_IRUSR, root, host, &atmci_req_fops); + if (!node) + goto err; + + node = debugfs_create_x32("pending_events", S_IRUSR, root, + (u32 *)&host->pending_events); + if (!node) + goto err; + + node = debugfs_create_x32("completed_events", S_IRUSR, root, + (u32 *)&host->completed_events); + if (!node) + goto err; + + return; + +err: + dev_err(&host->pdev->dev, + "failed to initialize debugfs for controller\n"); +} static void atmci_enable(struct atmel_mci *host) { @@ -905,6 +1090,8 @@ static int __init atmci_probe(struct platform_device *pdev) "Atmel MCI controller at 0x%08lx irq %d\n", host->mapbase, irq); + atmci_init_debugfs(host); + return 0; err_request_irq: @@ -923,6 +1110,8 @@ static int __exit atmci_remove(struct platform_device *pdev) platform_set_drvdata(pdev, NULL); if (host) { + /* Debugfs stuff is cleaned up by mmc core */ + if (host->detect_pin >= 0) { int pin = host->detect_pin; diff --git a/drivers/mmc/host/imxmmc.c b/drivers/mmc/host/imxmmc.c index 5e880c0..f61406d 100644 --- a/drivers/mmc/host/imxmmc.c +++ b/drivers/mmc/host/imxmmc.c @@ -26,12 +26,6 @@ * */ -#ifdef CONFIG_MMC_DEBUG -#define DEBUG -#else -#undef DEBUG -#endif - #include <linux/module.h> #include <linux/init.h> #include <linux/ioport.h> @@ -907,31 +901,12 @@ static const struct mmc_host_ops imxmci_ops = { .get_ro = imxmci_get_ro, }; -static struct resource *platform_device_resource(struct platform_device *dev, unsigned int mask, int nr) -{ - int i; - - for (i = 0; i < dev->num_resources; i++) - if (dev->resource[i].flags == mask && nr-- == 0) - return &dev->resource[i]; - return NULL; -} - -static int platform_device_irq(struct platform_device *dev, int nr) -{ - int i; - - for (i = 0; i < dev->num_resources; i++) - if (dev->resource[i].flags == IORESOURCE_IRQ && nr-- == 0) - return dev->resource[i].start; - return NO_IRQ; -} - static void imxmci_check_status(unsigned long data) { struct imxmci_host *host = (struct imxmci_host *)data; - if( host->pdata->card_present(mmc_dev(host->mmc)) != host->present ) { + if (host->pdata && host->pdata->card_present && + host->pdata->card_present(mmc_dev(host->mmc)) != host->present) { host->present ^= 1; dev_info(mmc_dev(host->mmc), "card %s\n", host->present ? "inserted" : "removed"); @@ -962,13 +937,12 @@ static int imxmci_probe(struct platform_device *pdev) printk(KERN_INFO "i.MX mmc driver\n"); - r = platform_device_resource(pdev, IORESOURCE_MEM, 0); - irq = platform_device_irq(pdev, 0); - if (!r || irq == NO_IRQ) + r = platform_get_resource(pdev, IORESOURCE_MEM, 0); + irq = platform_get_irq(pdev, 0); + if (!r || irq < 0) return -ENXIO; - r = request_mem_region(r->start, 0x100, "IMXMCI"); - if (!r) + if (!request_mem_region(r->start, 0x100, pdev->name)) return -EBUSY; mmc = mmc_alloc_host(sizeof(struct imxmci_host), &pdev->dev); @@ -995,6 +969,8 @@ static int imxmci_probe(struct platform_device *pdev) host->mmc = mmc; host->dma_allocated = 0; host->pdata = pdev->dev.platform_data; + if (!host->pdata) + dev_warn(&pdev->dev, "No platform data provided!\n"); spin_lock_init(&host->lock); host->res = r; @@ -1047,7 +1023,11 @@ static int imxmci_probe(struct platform_device *pdev) if (ret) goto out; - host->present = host->pdata->card_present(mmc_dev(mmc)); + if (host->pdata && host->pdata->card_present) + host->present = host->pdata->card_present(mmc_dev(mmc)); + else /* if there is no way to detect assume that card is present */ + host->present = 1; + init_timer(&host->timer); host->timer.data = (unsigned long)host; host->timer.function = imxmci_check_status; @@ -1073,7 +1053,7 @@ out: } if (mmc) mmc_free_host(mmc); - release_resource(r); + release_mem_region(r->start, 0x100); return ret; } @@ -1102,7 +1082,7 @@ static int imxmci_remove(struct platform_device *pdev) clk_disable(host->clk); clk_put(host->clk); - release_resource(host->res); + release_mem_region(host->res->start, 0x100); mmc_free_host(mmc); } diff --git a/drivers/mmc/host/mmc_spi.c b/drivers/mmc/host/mmc_spi.c index 41cc633..7503b81 100644 --- a/drivers/mmc/host/mmc_spi.c +++ b/drivers/mmc/host/mmc_spi.c @@ -1076,6 +1076,7 @@ static void mmc_spi_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) */ if (canpower && ios->power_mode == MMC_POWER_OFF) { int mres; + u8 nullbyte = 0; host->spi->mode &= ~(SPI_CPOL|SPI_CPHA); mres = spi_setup(host->spi); @@ -1083,7 +1084,7 @@ static void mmc_spi_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) dev_dbg(&host->spi->dev, "switch to SPI mode 0 failed\n"); - if (spi_w8r8(host->spi, 0x00) < 0) + if (spi_write(host->spi, &nullbyte, 1) < 0) dev_dbg(&host->spi->dev, "put spi signals to low failed\n"); diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index c3a5db7..5f95e10 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -337,7 +337,7 @@ static int sdhci_adma_table_pre(struct sdhci_host *host, host->align_addr = dma_map_single(mmc_dev(host->mmc), host->align_buffer, 128 * 4, direction); - if (dma_mapping_error(host->align_addr)) + if (dma_mapping_error(mmc_dev(host->mmc), host->align_addr)) goto fail; BUG_ON(host->align_addr & 0x3); @@ -439,7 +439,7 @@ static int sdhci_adma_table_pre(struct sdhci_host *host, host->adma_addr = dma_map_single(mmc_dev(host->mmc), host->adma_desc, (128 * 2 + 1) * 4, DMA_TO_DEVICE); - if (dma_mapping_error(host->align_addr)) + if (dma_mapping_error(mmc_dev(host->mmc), host->align_addr)) goto unmap_entries; BUG_ON(host->adma_addr & 0x3); diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h index a06bf8b..e354fae 100644 --- a/drivers/mmc/host/sdhci.h +++ b/drivers/mmc/host/sdhci.h @@ -9,6 +9,8 @@ * your option) any later version. */ +#include <linux/scatterlist.h> + /* * Controller registers */ diff --git a/drivers/mtd/Kconfig b/drivers/mtd/Kconfig index eed06d0..14f11f8 100644 --- a/drivers/mtd/Kconfig +++ b/drivers/mtd/Kconfig @@ -1,5 +1,3 @@ -# $Id: Kconfig,v 1.11 2005/11/07 11:14:19 gleixner Exp $ - menuconfig MTD tristate "Memory Technology Device (MTD) support" depends on HAS_IOMEM diff --git a/drivers/mtd/afs.c b/drivers/mtd/afs.c index 52d51eb..d072ca5 100644 --- a/drivers/mtd/afs.c +++ b/drivers/mtd/afs.c @@ -21,8 +21,6 @@ This is access code for flashes using ARM's flash partitioning standards. - $Id: afs.c,v 1.15 2005/11/07 11:14:19 gleixner Exp $ - ======================================================================*/ #include <linux/module.h> diff --git a/drivers/mtd/chips/cfi_cmdset_0001.c b/drivers/mtd/chips/cfi_cmdset_0001.c index fcd1aec..5f1b472 100644 --- a/drivers/mtd/chips/cfi_cmdset_0001.c +++ b/drivers/mtd/chips/cfi_cmdset_0001.c @@ -4,8 +4,6 @@ * * (C) 2000 Red Hat. GPL'd * - * $Id: cfi_cmdset_0001.c,v 1.186 2005/11/23 22:07:52 nico Exp $ - * * * 10/10/2000 Nicolas Pitre <nico@cam.org> * - completely revamped method functions so they are aware and @@ -50,6 +48,8 @@ #define I82802AC 0x00ac #define MANUFACTURER_ST 0x0020 #define M50LPW080 0x002F +#define M50FLW080A 0x0080 +#define M50FLW080B 0x0081 #define AT49BV640D 0x02de static int cfi_intelext_read (struct mtd_info *, loff_t, size_t, size_t *, u_char *); @@ -204,7 +204,7 @@ static void fixup_intel_strataflash(struct mtd_info *mtd, void* param) { struct map_info *map = mtd->priv; struct cfi_private *cfi = map->fldrv_priv; - struct cfi_pri_amdstd *extp = cfi->cmdset_priv; + struct cfi_pri_intelext *extp = cfi->cmdset_priv; printk(KERN_WARNING "cfi_cmdset_0001: Suspend " "erase on write disabled.\n"); @@ -301,6 +301,8 @@ static struct cfi_fixup jedec_fixup_table[] = { { MANUFACTURER_INTEL, I82802AB, fixup_use_fwh_lock, NULL, }, { MANUFACTURER_INTEL, I82802AC, fixup_use_fwh_lock, NULL, }, { MANUFACTURER_ST, M50LPW080, fixup_use_fwh_lock, NULL, }, + { MANUFACTURER_ST, M50FLW080A, fixup_use_fwh_lock, NULL, }, + { MANUFACTURER_ST, M50FLW080B, fixup_use_fwh_lock, NULL, }, { 0, 0, NULL, NULL } }; static struct cfi_fixup fixup_table[] = { @@ -1147,7 +1149,7 @@ static int inval_cache_and_wait_for_operation( struct cfi_private *cfi = map->fldrv_priv; map_word status, status_OK = CMD(0x80); int chip_state = chip->state; - unsigned int timeo, sleep_time; + unsigned int timeo, sleep_time, reset_timeo; spin_unlock(chip->mutex); if (inval_len) @@ -1158,6 +1160,7 @@ static int inval_cache_and_wait_for_operation( timeo = chip_op_time * 8; if (!timeo) timeo = 500000; + reset_timeo = timeo; sleep_time = chip_op_time / 2; for (;;) { @@ -1199,6 +1202,12 @@ static int inval_cache_and_wait_for_operation( remove_wait_queue(&chip->wq, &wait); spin_lock(chip->mutex); } + if (chip->erase_suspended || chip->write_suspended) { + /* Suspend has occured while sleep: reset timeout */ + timeo = reset_timeo; + chip->erase_suspended = 0; + chip->write_suspended = 0; + } } /* Done and happy. */ diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c index f7fcc63..a972cc6 100644 --- a/drivers/mtd/chips/cfi_cmdset_0002.c +++ b/drivers/mtd/chips/cfi_cmdset_0002.c @@ -16,9 +16,6 @@ * Occasionally maintained by Thayne Harbaugh tharbaugh at lnxi dot com * * This code is GPL - * - * $Id: cfi_cmdset_0002.c,v 1.122 2005/11/07 11:14:22 gleixner Exp $ - * */ #include <linux/module.h> diff --git a/drivers/mtd/chips/cfi_cmdset_0020.c b/drivers/mtd/chips/cfi_cmdset_0020.c index 1b720cc..d4714dd 100644 --- a/drivers/mtd/chips/cfi_cmdset_0020.c +++ b/drivers/mtd/chips/cfi_cmdset_0020.c @@ -4,8 +4,6 @@ * * (C) 2000 Red Hat. GPL'd * - * $Id: cfi_cmdset_0020.c,v 1.22 2005/11/07 11:14:22 gleixner Exp $ - * * 10/10/2000 Nicolas Pitre <nico@cam.org> * - completely revamped method functions so they are aware and * independent of the flash geometry (buswidth, interleave, etc.) diff --git a/drivers/mtd/chips/cfi_probe.c b/drivers/mtd/chips/cfi_probe.c index a4463a9..c418e92 100644 --- a/drivers/mtd/chips/cfi_probe.c +++ b/drivers/mtd/chips/cfi_probe.c @@ -1,7 +1,6 @@ /* Common Flash Interface probe code. (C) 2000 Red Hat. GPL'd. - $Id: cfi_probe.c,v 1.86 2005/11/29 14:48:31 gleixner Exp $ */ #include <linux/module.h> diff --git a/drivers/mtd/chips/cfi_util.c b/drivers/mtd/chips/cfi_util.c index 72e0022..0ee4570 100644 --- a/drivers/mtd/chips/cfi_util.c +++ b/drivers/mtd/chips/cfi_util.c @@ -6,9 +6,6 @@ * Copyright (C) 2003 STMicroelectronics Limited * * This code is covered by the GPL. - * - * $Id: cfi_util.c,v 1.10 2005/11/07 11:14:23 gleixner Exp $ - * */ #include <linux/module.h> diff --git a/drivers/mtd/chips/chipreg.c b/drivers/mtd/chips/chipreg.c index 2174c9754..c857609 100644 --- a/drivers/mtd/chips/chipreg.c +++ b/drivers/mtd/chips/chipreg.c @@ -1,6 +1,4 @@ /* - * $Id: chipreg.c,v 1.17 2004/11/16 18:29:00 dwmw2 Exp $ - * * Registration for chip drivers * */ diff --git a/drivers/mtd/chips/gen_probe.c b/drivers/mtd/chips/gen_probe.c index d338b8c..f061885 100644 --- a/drivers/mtd/chips/gen_probe.c +++ b/drivers/mtd/chips/gen_probe.c @@ -2,7 +2,6 @@ * Routines common to all CFI-type probes. * (C) 2001-2003 Red Hat, Inc. * GPL'd - * $Id: gen_probe.c,v 1.24 2005/11/07 11:14:23 gleixner Exp $ */ #include <linux/kernel.h> @@ -71,8 +70,8 @@ static struct cfi_private *genprobe_ident_chips(struct map_info *map, struct chi interleave and device type, etc. */ if (!genprobe_new_chip(map, cp, &cfi)) { /* The probe didn't like it */ - printk(KERN_DEBUG "%s: Found no %s device at location zero\n", - cp->name, map->name); + pr_debug("%s: Found no %s device at location zero\n", + cp->name, map->name); return NULL; } diff --git a/drivers/mtd/chips/jedec_probe.c b/drivers/mtd/chips/jedec_probe.c index aa07575..dbba5ab 100644 --- a/drivers/mtd/chips/jedec_probe.c +++ b/drivers/mtd/chips/jedec_probe.c @@ -1,7 +1,6 @@ /* Common Flash Interface probe code. (C) 2000 Red Hat. GPL'd. - $Id: jedec_probe.c,v 1.66 2005/11/07 11:14:23 gleixner Exp $ See JEDEC (http://www.jedec.org/) standard JESD21C (section 3.5) for the standard this probe goes back to. @@ -26,6 +25,7 @@ /* Manufacturers */ #define MANUFACTURER_AMD 0x0001 #define MANUFACTURER_ATMEL 0x001f +#define MANUFACTURER_EON 0x001c #define MANUFACTURER_FUJITSU 0x0004 #define MANUFACTURER_HYUNDAI 0x00AD #define MANUFACTURER_INTEL 0x0089 @@ -37,6 +37,7 @@ #define MANUFACTURER_ST 0x0020 #define MANUFACTURER_TOSHIBA 0x0098 #define MANUFACTURER_WINBOND 0x00da +#define CONTINUATION_CODE 0x007f /* AMD */ @@ -58,6 +59,8 @@ #define AM29LV040B 0x004F #define AM29F032B 0x0041 #define AM29F002T 0x00B0 +#define AM29SL800DB 0x226B +#define AM29SL800DT 0x22EA /* Atmel */ #define AT49BV512 0x0003 @@ -67,6 +70,10 @@ #define AT49BV32X 0x00C8 #define AT49BV32XT 0x00C9 +/* Eon */ +#define EN29SL800BB 0x226B +#define EN29SL800BT 0x22EA + /* Fujitsu */ #define MBM29F040C 0x00A4 #define MBM29F800BA 0x2258 @@ -141,6 +148,8 @@ #define M50FW080 0x002D #define M50FW016 0x002E #define M50LPW080 0x002F +#define M50FLW080A 0x0080 +#define M50FLW080B 0x0081 /* SST */ #define SST29EE020 0x0010 @@ -191,6 +200,7 @@ enum uaddr { MTD_UADDR_0x0555_0x0AAA, MTD_UADDR_0x5555_0x2AAA, MTD_UADDR_0x0AAA_0x0555, + MTD_UADDR_0xAAAA_0x5555, MTD_UADDR_DONT_CARE, /* Requires an arbitrary address */ MTD_UADDR_UNNECESSARY, /* Does not require any address */ }; @@ -238,6 +248,11 @@ static const struct unlock_addr unlock_addrs[] = { .addr2 = 0x0555 }, + [MTD_UADDR_0xAAAA_0x5555] = { + .addr1 = 0xaaaa, + .addr2 = 0x5555 + }, + [MTD_UADDR_DONT_CARE] = { .addr1 = 0x0000, /* Doesn't matter which address */ .addr2 = 0x0000 /* is used - must be last entry */ @@ -522,6 +537,36 @@ static const struct amd_flash_info jedec_table[] = { ERASEINFO(0x04000,1), } }, { + .mfr_id = MANUFACTURER_AMD, + .dev_id = AM29SL800DT, + .name = "AMD AM29SL800DT", + .devtypes = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8, + .uaddr = MTD_UADDR_0x0AAA_0x0555, + .dev_size = SIZE_1MiB, + .cmd_set = P_ID_AMD_STD, + .nr_regions = 4, + .regions = { + ERASEINFO(0x10000,15), + ERASEINFO(0x08000,1), + ERASEINFO(0x02000,2), + ERASEINFO(0x04000,1), + } + }, { + .mfr_id = MANUFACTURER_AMD, + .dev_id = AM29SL800DB, + .name = "AMD AM29SL800DB", + .devtypes = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8, + .uaddr = MTD_UADDR_0x0AAA_0x0555, + .dev_size = SIZE_1MiB, + .cmd_set = P_ID_AMD_STD, + .nr_regions = 4, + .regions = { + ERASEINFO(0x04000,1), + ERASEINFO(0x02000,2), + ERASEINFO(0x08000,1), + ERASEINFO(0x10000,15), + } + }, { .mfr_id = MANUFACTURER_ATMEL, .dev_id = AT49BV512, .name = "Atmel AT49BV512", @@ -599,6 +644,36 @@ static const struct amd_flash_info jedec_table[] = { ERASEINFO(0x02000,8) } }, { + .mfr_id = MANUFACTURER_EON, + .dev_id = EN29SL800BT, + .name = "Eon EN29SL800BT", + .devtypes = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8, + .uaddr = MTD_UADDR_0x0AAA_0x0555, + .dev_size = SIZE_1MiB, + .cmd_set = P_ID_AMD_STD, + .nr_regions = 4, + .regions = { + ERASEINFO(0x10000,15), + ERASEINFO(0x08000,1), + ERASEINFO(0x02000,2), + ERASEINFO(0x04000,1), + } + }, { + .mfr_id = MANUFACTURER_EON, + .dev_id = EN29SL800BB, + .name = "Eon EN29SL800BB", + .devtypes = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8, + .uaddr = MTD_UADDR_0x0AAA_0x0555, + .dev_size = SIZE_1MiB, + .cmd_set = P_ID_AMD_STD, + .nr_regions = 4, + .regions = { + ERASEINFO(0x04000,1), + ERASEINFO(0x02000,2), + ERASEINFO(0x08000,1), + ERASEINFO(0x10000,15), + } + }, { .mfr_id = MANUFACTURER_FUJITSU, .dev_id = MBM29F040C, .name = "Fujitsu MBM29F040C", @@ -1392,8 +1467,8 @@ static const struct amd_flash_info jedec_table[] = { .mfr_id = MANUFACTURER_SST, /* should be CFI */ .dev_id = SST39LF160, .name = "SST 39LF160", - .devtypes = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8, - .uaddr = MTD_UADDR_0x5555_0x2AAA, /* ???? */ + .devtypes = CFI_DEVICETYPE_X16, + .uaddr = MTD_UADDR_0xAAAA_0x5555, .dev_size = SIZE_2MiB, .cmd_set = P_ID_AMD_STD, .nr_regions = 2, @@ -1405,8 +1480,8 @@ static const struct amd_flash_info jedec_table[] = { .mfr_id = MANUFACTURER_SST, /* should be CFI */ .dev_id = SST39VF1601, .name = "SST 39VF1601", - .devtypes = CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8, - .uaddr = MTD_UADDR_0x5555_0x2AAA, /* ???? */ + .devtypes = CFI_DEVICETYPE_X16, + .uaddr = MTD_UADDR_0xAAAA_0x5555, .dev_size = SIZE_2MiB, .cmd_set = P_ID_AMD_STD, .nr_regions = 2, @@ -1590,6 +1665,36 @@ static const struct amd_flash_info jedec_table[] = { .nr_regions = 1, .regions = { ERASEINFO(0x10000,16), + }, + }, { + .mfr_id = MANUFACTURER_ST, + .dev_id = M50FLW080A, + .name = "ST M50FLW080A", + .devtypes = CFI_DEVICETYPE_X8, + .uaddr = MTD_UADDR_UNNECESSARY, + .dev_size = SIZE_1MiB, + .cmd_set = P_ID_INTEL_EXT, + .nr_regions = 4, + .regions = { + ERASEINFO(0x1000,16), + ERASEINFO(0x10000,13), + ERASEINFO(0x1000,16), + ERASEINFO(0x1000,16), + } + }, { + .mfr_id = MANUFACTURER_ST, + .dev_id = M50FLW080B, + .name = "ST M50FLW080B", + .devtypes = CFI_DEVICETYPE_X8, + .uaddr = MTD_UADDR_UNNECESSARY, + .dev_size = SIZE_1MiB, + .cmd_set = P_ID_INTEL_EXT, + .nr_regions = 4, + .regions = { + ERASEINFO(0x1000,16), + ERASEINFO(0x1000,16), + ERASEINFO(0x10000,13), + ERASEINFO(0x1000,16), } }, { .mfr_id = MANUFACTURER_TOSHIBA, @@ -1696,9 +1801,21 @@ static inline u32 jedec_read_mfr(struct map_info *map, uint32_t base, { map_word result; unsigned long mask; - u32 ofs = cfi_build_cmd_addr(0, cfi_interleave(cfi), cfi->device_type); - mask = (1 << (cfi->device_type * 8)) -1; - result = map_read(map, base + ofs); + int bank = 0; + + /* According to JEDEC "Standard Manufacturer's Identification Code" + * (http://www.jedec.org/download/search/jep106W.pdf) + * several first banks can contain 0x7f instead of actual ID + */ + do { + uint32_t ofs = cfi_build_cmd_addr(0 + (bank << 8), + cfi_interleave(cfi), + cfi->device_type); + mask = (1 << (cfi->device_type * 8)) - 1; + result = map_read(map, base + ofs); + bank++; + } while ((result.x[0] & mask) == CONTINUATION_CODE); + return result.x[0] & mask; } diff --git a/drivers/mtd/chips/map_absent.c b/drivers/mtd/chips/map_absent.c index fc478c0..494d30d 100644 --- a/drivers/mtd/chips/map_absent.c +++ b/drivers/mtd/chips/map_absent.c @@ -1,7 +1,6 @@ /* * Common code to handle absent "placeholder" devices * Copyright 2001 Resilience Corporation <ebrower@resilience.com> - * $Id: map_absent.c,v 1.6 2005/11/07 11:14:23 gleixner Exp $ * * This map driver is used to allocate "placeholder" MTD * devices on systems that have socketed/removable media. diff --git a/drivers/mtd/chips/map_ram.c b/drivers/mtd/chips/map_ram.c index 5cb6d52..072dd8a 100644 --- a/drivers/mtd/chips/map_ram.c +++ b/drivers/mtd/chips/map_ram.c @@ -1,7 +1,6 @@ /* * Common code to handle map devices which are simple RAM * (C) 2000 Red Hat. GPL'd. - * $Id: map_ram.c,v 1.22 2005/01/05 18:05:12 dwmw2 Exp $ */ #include <linux/module.h> diff --git a/drivers/mtd/chips/map_rom.c b/drivers/mtd/chips/map_rom.c index cb27f85..821d0ed 100644 --- a/drivers/mtd/chips/map_rom.c +++ b/drivers/mtd/chips/map_rom.c @@ -1,7 +1,6 @@ /* * Common code to handle map devices which are simple ROM * (C) 2000 Red Hat. GPL'd. - * $Id: map_rom.c,v 1.23 2005/01/05 18:05:12 dwmw2 Exp $ */ #include <linux/module.h> diff --git a/drivers/mtd/cmdlinepart.c b/drivers/mtd/cmdlinepart.c index e472a0e..71bc07f 100644 --- a/drivers/mtd/cmdlinepart.c +++ b/drivers/mtd/cmdlinepart.c @@ -1,6 +1,4 @@ /* - * $Id: cmdlinepart.c,v 1.19 2005/11/07 11:14:19 gleixner Exp $ - * * Read flash partition table from command line * * Copyright 2002 SYSGO Real-Time Solutions GmbH @@ -308,7 +306,7 @@ static int parse_cmdline_partitions(struct mtd_info *master, unsigned long offset; int i; struct cmdline_mtd_partition *part; - char *mtd_id = master->name; + const char *mtd_id = master->name; /* parse command line */ if (!cmdline_parsed) diff --git a/drivers/mtd/devices/Kconfig b/drivers/mtd/devices/Kconfig index 35ed110..9c613f0 100644 --- a/drivers/mtd/devices/Kconfig +++ b/drivers/mtd/devices/Kconfig @@ -1,5 +1,4 @@ # drivers/mtd/maps/Kconfig -# $Id: Kconfig,v 1.18 2005/11/07 11:14:24 gleixner Exp $ menu "Self-contained MTD device drivers" depends on MTD!=n diff --git a/drivers/mtd/devices/Makefile b/drivers/mtd/devices/Makefile index 0f788d5..0993d5c 100644 --- a/drivers/mtd/devices/Makefile +++ b/drivers/mtd/devices/Makefile @@ -1,7 +1,6 @@ # # linux/drivers/devices/Makefile # -# $Id: Makefile.common,v 1.7 2004/12/22 17:51:15 joern Exp $ obj-$(CONFIG_MTD_DOC2000) += doc2000.o obj-$(CONFIG_MTD_DOC2001) += doc2001.o diff --git a/drivers/mtd/devices/block2mtd.c b/drivers/mtd/devices/block2mtd.c index 7b72a1b..91fbba7 100644 --- a/drivers/mtd/devices/block2mtd.c +++ b/drivers/mtd/devices/block2mtd.c @@ -1,6 +1,4 @@ /* - * $Id: block2mtd.c,v 1.30 2005/11/29 14:48:32 gleixner Exp $ - * * block2mtd.c - create an mtd from a block device * * Copyright (C) 2001,2002 Simon Evans <spse@secret.org.uk> @@ -20,9 +18,6 @@ #include <linux/mutex.h> #include <linux/mount.h> -#define VERSION "$Revision: 1.30 $" - - #define ERROR(fmt, args...) printk(KERN_ERR "block2mtd: " fmt "\n" , ## args) #define INFO(fmt, args...) printk(KERN_INFO "block2mtd: " fmt "\n" , ## args) @@ -453,7 +448,6 @@ MODULE_PARM_DESC(block2mtd, "Device to use. \"block2mtd=<dev>[,<erasesize>]\""); static int __init block2mtd_init(void) { int ret = 0; - INFO("version " VERSION); #ifndef MODULE if (strlen(block2mtd_paramline)) diff --git a/drivers/mtd/devices/doc2000.c b/drivers/mtd/devices/doc2000.c index 846989f..50de839 100644 --- a/drivers/mtd/devices/doc2000.c +++ b/drivers/mtd/devices/doc2000.c @@ -3,8 +3,6 @@ * Linux driver for Disk-On-Chip 2000 and Millennium * (c) 1999 Machine Vision Holdings, Inc. * (c) 1999, 2000 David Woodhouse <dwmw2@infradead.org> - * - * $Id: doc2000.c,v 1.67 2005/11/07 11:14:24 gleixner Exp $ */ #include <linux/kernel.h> diff --git a/drivers/mtd/devices/doc2001.c b/drivers/mtd/devices/doc2001.c index 6413efc..e32c568 100644 --- a/drivers/mtd/devices/doc2001.c +++ b/drivers/mtd/devices/doc2001.c @@ -3,8 +3,6 @@ * Linux driver for Disk-On-Chip Millennium * (c) 1999 Machine Vision Holdings, Inc. * (c) 1999, 2000 David Woodhouse <dwmw2@infradead.org> - * - * $Id: doc2001.c,v 1.49 2005/11/07 11:14:24 gleixner Exp $ */ #include <linux/kernel.h> diff --git a/drivers/mtd/devices/doc2001plus.c b/drivers/mtd/devices/doc2001plus.c index 83be346..d853f89 100644 --- a/drivers/mtd/devices/doc2001plus.c +++ b/drivers/mtd/devices/doc2001plus.c @@ -6,8 +6,6 @@ * (c) 1999 Machine Vision Holdings, Inc. * (c) 1999, 2000 David Woodhouse <dwmw2@infradead.org> * - * $Id: doc2001plus.c,v 1.14 2005/11/07 11:14:24 gleixner Exp $ - * * Released under GPL */ diff --git a/drivers/mtd/devices/docecc.c b/drivers/mtd/devices/docecc.c index fd8a8da..874e51b 100644 --- a/drivers/mtd/devices/docecc.c +++ b/drivers/mtd/devices/docecc.c @@ -7,8 +7,6 @@ * Author: Fabrice Bellard (fabrice.bellard@netgem.com) * Copyright (C) 2000 Netgem S.A. * - * $Id: docecc.c,v 1.7 2005/11/07 11:14:25 gleixner Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or diff --git a/drivers/mtd/devices/docprobe.c b/drivers/mtd/devices/docprobe.c index d8cc94e..6e62922 100644 --- a/drivers/mtd/devices/docprobe.c +++ b/drivers/mtd/devices/docprobe.c @@ -4,9 +4,6 @@ /* (C) 1999 Machine Vision Holdings, Inc. */ /* (C) 1999-2003 David Woodhouse <dwmw2@infradead.org> */ -/* $Id: docprobe.c,v 1.46 2005/11/07 11:14:25 gleixner Exp $ */ - - /* DOC_PASSIVE_PROBE: In order to ensure that the BIOS checksum is correct at boot time, and @@ -79,8 +76,6 @@ static unsigned long __initdata doc_locations[] = { 0xe0000, 0xe2000, 0xe4000, 0xe6000, 0xe8000, 0xea000, 0xec000, 0xee000, #endif /* CONFIG_MTD_DOCPROBE_HIGH */ -#elif defined(__PPC__) - 0xe4000000, #else #warning Unknown architecture for DiskOnChip. No default probe locations defined #endif diff --git a/drivers/mtd/devices/lart.c b/drivers/mtd/devices/lart.c index 1d324e5..f4bda4c 100644 --- a/drivers/mtd/devices/lart.c +++ b/drivers/mtd/devices/lart.c @@ -2,8 +2,6 @@ /* * MTD driver for the 28F160F3 Flash Memory (non-CFI) on LART. * - * $Id: lart.c,v 1.9 2005/11/07 11:14:25 gleixner Exp $ - * * Author: Abraham vd Merwe <abraham@2d3d.co.za> * * Copyright (c) 2001, 2d3D, Inc. diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index b402269..b35c333 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -33,6 +33,7 @@ /* Flash opcodes. */ #define OPCODE_WREN 0x06 /* Write enable */ #define OPCODE_RDSR 0x05 /* Read status register */ +#define OPCODE_WRSR 0x01 /* Write status register 1 byte */ #define OPCODE_NORM_READ 0x03 /* Read data bytes (low frequency) */ #define OPCODE_FAST_READ 0x0b /* Read data bytes (high frequency) */ #define OPCODE_PP 0x02 /* Page program (up to 256 bytes) */ @@ -112,6 +113,17 @@ static int read_sr(struct m25p *flash) return val; } +/* + * Write status register 1 byte + * Returns negative if error occurred. + */ +static int write_sr(struct m25p *flash, u8 val) +{ + flash->command[0] = OPCODE_WRSR; + flash->command[1] = val; + + return spi_write(flash->spi, flash->command, 2); +} /* * Set write enable latch with Write Enable command. @@ -589,6 +601,16 @@ static int __devinit m25p_probe(struct spi_device *spi) mutex_init(&flash->lock); dev_set_drvdata(&spi->dev, flash); + /* + * Atmel serial flash tend to power up + * with the software protection bits set + */ + + if (info->jedec_id >> 16 == 0x1f) { + write_enable(flash); + write_sr(flash, 0); + } + if (data && data->name) flash->mtd.name = data->name; else diff --git a/drivers/mtd/devices/ms02-nv.c b/drivers/mtd/devices/ms02-nv.c index 9cff119..6a9a24a 100644 --- a/drivers/mtd/devices/ms02-nv.c +++ b/drivers/mtd/devices/ms02-nv.c @@ -5,8 +5,6 @@ * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. - * - * $Id: ms02-nv.c,v 1.11 2005/11/14 13:41:47 macro Exp $ */ #include <linux/init.h> diff --git a/drivers/mtd/devices/ms02-nv.h b/drivers/mtd/devices/ms02-nv.h index 8a6eef7..04deafd 100644 --- a/drivers/mtd/devices/ms02-nv.h +++ b/drivers/mtd/devices/ms02-nv.h @@ -9,8 +9,6 @@ * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. - * - * $Id: ms02-nv.h,v 1.3 2003/08/19 09:25:36 dwmw2 Exp $ */ #include <linux/ioport.h> diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c index b35e481..54e36bf 100644 --- a/drivers/mtd/devices/mtd_dataflash.c +++ b/drivers/mtd/devices/mtd_dataflash.c @@ -82,7 +82,7 @@ struct dataflash { - u8 command[4]; + uint8_t command[4]; char name[24]; unsigned partitioned:1; @@ -150,7 +150,7 @@ static int dataflash_erase(struct mtd_info *mtd, struct erase_info *instr) struct spi_transfer x = { .tx_dma = 0, }; struct spi_message msg; unsigned blocksize = priv->page_size << 3; - u8 *command; + uint8_t *command; DEBUG(MTD_DEBUG_LEVEL2, "%s: erase addr=0x%x len 0x%x\n", spi->dev.bus_id, @@ -182,8 +182,8 @@ static int dataflash_erase(struct mtd_info *mtd, struct erase_info *instr) pageaddr = pageaddr << priv->page_offset; command[0] = do_block ? OP_ERASE_BLOCK : OP_ERASE_PAGE; - command[1] = (u8)(pageaddr >> 16); - command[2] = (u8)(pageaddr >> 8); + command[1] = (uint8_t)(pageaddr >> 16); + command[2] = (uint8_t)(pageaddr >> 8); command[3] = 0; DEBUG(MTD_DEBUG_LEVEL3, "ERASE %s: (%x) %x %x %x [%i]\n", @@ -234,7 +234,7 @@ static int dataflash_read(struct mtd_info *mtd, loff_t from, size_t len, struct spi_transfer x[2] = { { .tx_dma = 0, }, }; struct spi_message msg; unsigned int addr; - u8 *command; + uint8_t *command; int status; DEBUG(MTD_DEBUG_LEVEL2, "%s: read 0x%x..0x%x\n", @@ -274,9 +274,9 @@ static int dataflash_read(struct mtd_info *mtd, loff_t from, size_t len, * fewer "don't care" bytes. Both buffers stay unchanged. */ command[0] = OP_READ_CONTINUOUS; - command[1] = (u8)(addr >> 16); - command[2] = (u8)(addr >> 8); - command[3] = (u8)(addr >> 0); + command[1] = (uint8_t)(addr >> 16); + command[2] = (uint8_t)(addr >> 8); + command[3] = (uint8_t)(addr >> 0); /* plus 4 "don't care" bytes */ status = spi_sync(priv->spi, &msg); @@ -311,7 +311,7 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len, size_t remaining = len; u_char *writebuf = (u_char *) buf; int status = -EINVAL; - u8 *command; + uint8_t *command; DEBUG(MTD_DEBUG_LEVEL2, "%s: write 0x%x..0x%x\n", spi->dev.bus_id, (unsigned)to, (unsigned)(to + len)); @@ -487,7 +487,9 @@ add_dataflash(struct spi_device *spi, char *name, device->write = dataflash_write; device->priv = priv; - dev_info(&spi->dev, "%s (%d KBytes)\n", name, device->size/1024); + dev_info(&spi->dev, "%s (%d KBytes) pagesize %d bytes, " + "erasesize %d bytes\n", name, device->size/1024, + pagesize, pagesize * 8); /* 8 pages = 1 block */ dev_set_drvdata(&spi->dev, priv); if (mtd_has_partitions()) { @@ -521,7 +523,7 @@ add_dataflash(struct spi_device *spi, char *name, * * Device Density ID code #Pages PageSize Offset * AT45DB011B 1Mbit (128K) xx0011xx (0x0c) 512 264 9 - * AT45DB021B 2Mbit (256K) xx0101xx (0x14) 1025 264 9 + * AT45DB021B 2Mbit (256K) xx0101xx (0x14) 1024 264 9 * AT45DB041B 4Mbit (512K) xx0111xx (0x1c) 2048 264 9 * AT45DB081B 8Mbit (1M) xx1001xx (0x24) 4096 264 9 * AT45DB0161B 16Mbit (2M) xx1011xx (0x2c) 4096 528 10 @@ -529,9 +531,114 @@ add_dataflash(struct spi_device *spi, char *name, * AT45DB0642 64Mbit (8M) xx111xxx (0x3c) 8192 1056 11 * AT45DB1282 128Mbit (16M) xx0100xx (0x10) 16384 1056 11 */ + +struct flash_info { + char *name; + + /* JEDEC id zero means "no ID" (most older chips); otherwise it has + * a high byte of zero plus three data bytes: the manufacturer id, + * then a two byte device id. + */ + uint32_t jedec_id; + + /* The size listed here is what works with OPCODE_SE, which isn't + * necessarily called a "sector" by the vendor. + */ + unsigned nr_pages; + uint16_t pagesize; + uint16_t pageoffset; + + uint16_t flags; +#define SUP_POW2PS 0x02 +#define IS_POW2PS 0x01 +}; + +static struct flash_info __devinitdata dataflash_data [] = { + + { "at45db011d", 0x1f2200, 512, 264, 9, SUP_POW2PS}, + { "at45db011d", 0x1f2200, 512, 256, 8, SUP_POW2PS | IS_POW2PS}, + + { "at45db021d", 0x1f2300, 1024, 264, 9, SUP_POW2PS}, + { "at45db021d", 0x1f2300, 1024, 256, 8, SUP_POW2PS | IS_POW2PS}, + + { "at45db041d", 0x1f2400, 2048, 264, 9, SUP_POW2PS}, + { "at45db041d", 0x1f2400, 2048, 256, 8, SUP_POW2PS | IS_POW2PS}, + + { "at45db081d", 0x1f2500, 4096, 264, 9, SUP_POW2PS}, + { "at45db081d", 0x1f2500, 4096, 256, 8, SUP_POW2PS | IS_POW2PS}, + + { "at45db161d", 0x1f2600, 4096, 528, 10, SUP_POW2PS}, + { "at45db161d", 0x1f2600, 4096, 512, 9, SUP_POW2PS | IS_POW2PS}, + + { "at45db321c", 0x1f2700, 8192, 528, 10, }, + + { "at45db321d", 0x1f2701, 8192, 528, 10, SUP_POW2PS}, + { "at45db321d", 0x1f2701, 8192, 512, 9, SUP_POW2PS | IS_POW2PS}, + + { "at45db641d", 0x1f2800, 8192, 1056, 11, SUP_POW2PS}, + { "at45db641d", 0x1f2800, 8192, 1024, 10, SUP_POW2PS | IS_POW2PS}, +}; + +static struct flash_info *__devinit jedec_probe(struct spi_device *spi) +{ + int tmp; + uint8_t code = OP_READ_ID; + uint8_t id[3]; + uint32_t jedec; + struct flash_info *info; + int status; + + + /* JEDEC also defines an optional "extended device information" + * string for after vendor-specific data, after the three bytes + * we use here. Supporting some chips might require using it. + */ + tmp = spi_write_then_read(spi, &code, 1, id, 3); + if (tmp < 0) { + DEBUG(MTD_DEBUG_LEVEL0, "%s: error %d reading JEDEC ID\n", + spi->dev.bus_id, tmp); + return NULL; + } + jedec = id[0]; + jedec = jedec << 8; + jedec |= id[1]; + jedec = jedec << 8; + jedec |= id[2]; + + for (tmp = 0, info = dataflash_data; + tmp < ARRAY_SIZE(dataflash_data); + tmp++, info++) { + if (info->jedec_id == jedec) { + if (info->flags & SUP_POW2PS) { + status = dataflash_status(spi); + if (status & 0x1) + /* return power of 2 pagesize */ + return ++info; + else + return info; + } + } + } + return NULL; +} + static int __devinit dataflash_probe(struct spi_device *spi) { int status; + struct flash_info *info; + + /* + * Try to detect dataflash by JEDEC ID. + * If it succeeds we know we have either a C or D part. + * D will support power of 2 pagesize option. + */ + + info = jedec_probe(spi); + + if (info != NULL) + return add_dataflash(spi, info->name, info->nr_pages, + info->pagesize, info->pageoffset); + status = dataflash_status(spi); if (status <= 0 || status == 0xff) { @@ -551,16 +658,16 @@ static int __devinit dataflash_probe(struct spi_device *spi) status = add_dataflash(spi, "AT45DB011B", 512, 264, 9); break; case 0x14: /* 0 1 0 1 x x */ - status = add_dataflash(spi, "AT45DB021B", 1025, 264, 9); + status = add_dataflash(spi, "AT45DB021B", 1024, 264, 9); break; case 0x1c: /* 0 1 1 1 x x */ - status = add_dataflash(spi, "AT45DB041x", 2048, 264, 9); + status = add_dataflash(spi, "AT45DB041B", 2048, 264, 9); break; case 0x24: /* 1 0 0 1 x x */ status = add_dataflash(spi, "AT45DB081B", 4096, 264, 9); break; case 0x2c: /* 1 0 1 1 x x */ - status = add_dataflash(spi, "AT45DB161x", 4096, 528, 10); + status = add_dataflash(spi, "AT45DB161B", 4096, 528, 10); break; case 0x34: /* 1 1 0 1 x x */ status = add_dataflash(spi, "AT45DB321x", 8192, 528, 10); diff --git a/drivers/mtd/devices/mtdram.c b/drivers/mtd/devices/mtdram.c index 0399be1..3aaca88 100644 --- a/drivers/mtd/devices/mtdram.c +++ b/drivers/mtd/devices/mtdram.c @@ -1,6 +1,5 @@ /* * mtdram - a test mtd device - * $Id: mtdram.c,v 1.37 2005/04/21 03:42:11 joern Exp $ * Author: Alexander Larsson <alex@cendio.se> * * Copyright (c) 1999 Alexander Larsson <alex@cendio.se> diff --git a/drivers/mtd/devices/phram.c b/drivers/mtd/devices/phram.c index c7987b1..088fbb7 100644 --- a/drivers/mtd/devices/phram.c +++ b/drivers/mtd/devices/phram.c @@ -1,6 +1,4 @@ /** - * $Id: phram.c,v 1.16 2005/11/07 11:14:25 gleixner Exp $ - * * Copyright (c) ???? Jochen Schäuble <psionic@psionic.de> * Copyright (c) 2003-2004 Joern Engel <joern@wh.fh-wedel.de> * diff --git a/drivers/mtd/devices/pmc551.c b/drivers/mtd/devices/pmc551.c index bc99817..d38bca6 100644 --- a/drivers/mtd/devices/pmc551.c +++ b/drivers/mtd/devices/pmc551.c @@ -1,6 +1,4 @@ /* - * $Id: pmc551.c,v 1.32 2005/11/07 11:14:25 gleixner Exp $ - * * PMC551 PCI Mezzanine Ram Device * * Author: diff --git a/drivers/mtd/devices/slram.c b/drivers/mtd/devices/slram.c index cb86db7..a425d09 100644 --- a/drivers/mtd/devices/slram.c +++ b/drivers/mtd/devices/slram.c @@ -1,7 +1,5 @@ /*====================================================================== - $Id: slram.c,v 1.36 2005/11/07 11:14:25 gleixner Exp $ - This driver provides a method to access memory not used by the kernel itself (i.e. if the kernel commandline mem=xxx is used). To actually use slram at least mtdblock or mtdchar is required (for block or diff --git a/drivers/mtd/ftl.c b/drivers/mtd/ftl.c index 5c29872..f34f20c 100644 --- a/drivers/mtd/ftl.c +++ b/drivers/mtd/ftl.c @@ -1,5 +1,4 @@ /* This version ported to the Linux-MTD system by dwmw2@infradead.org - * $Id: ftl.c,v 1.59 2005/11/29 14:48:31 gleixner Exp $ * * Fixes: Arnaldo Carvalho de Melo <acme@conectiva.com.br> * - fixes some leaks on failure in build_maps and ftl_notify_add, cleanups @@ -1078,8 +1077,6 @@ static struct mtd_blktrans_ops ftl_tr = { static int init_ftl(void) { - DEBUG(0, "$Id: ftl.c,v 1.59 2005/11/29 14:48:31 gleixner Exp $\n"); - return register_mtd_blktrans(&ftl_tr); } diff --git a/drivers/mtd/inftlcore.c b/drivers/mtd/inftlcore.c index b0e3965..c4f9d33 100644 --- a/drivers/mtd/inftlcore.c +++ b/drivers/mtd/inftlcore.c @@ -7,8 +7,6 @@ * (c) 1999 Machine Vision Holdings, Inc. * Author: David Woodhouse <dwmw2@infradead.org> * - * $Id: inftlcore.c,v 1.19 2005/11/07 11:14:20 gleixner Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or @@ -953,9 +951,6 @@ static struct mtd_blktrans_ops inftl_tr = { static int __init init_inftl(void) { - printk(KERN_INFO "INFTL: inftlcore.c $Revision: 1.19 $, " - "inftlmount.c %s\n", inftlmountrev); - return register_mtd_blktrans(&inftl_tr); } diff --git a/drivers/mtd/inftlmount.c b/drivers/mtd/inftlmount.c index c551d2f..9113628 100644 --- a/drivers/mtd/inftlmount.c +++ b/drivers/mtd/inftlmount.c @@ -8,8 +8,6 @@ * Author: Fabrice Bellard (fabrice.bellard@netgem.com) * Copyright (C) 2000 Netgem S.A. * - * $Id: inftlmount.c,v 1.18 2005/11/07 11:14:20 gleixner Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or @@ -39,8 +37,6 @@ #include <linux/mtd/inftl.h> #include <linux/mtd/compatmac.h> -char inftlmountrev[]="$Revision: 1.18 $"; - /* * find_boot_record: Find the INFTL Media Header and its Spare copy which * contains the various device information of the INFTL partition and diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig index d2fbc29..df8e00b 100644 --- a/drivers/mtd/maps/Kconfig +++ b/drivers/mtd/maps/Kconfig @@ -1,5 +1,4 @@ # drivers/mtd/maps/Kconfig -# $Id: Kconfig,v 1.61 2005/11/07 11:14:26 gleixner Exp $ menu "Mapping drivers for chip access" depends on MTD!=n @@ -510,6 +509,17 @@ config MTD_PCMCIA_ANONYMOUS If unsure, say N. +config MTD_BFIN_ASYNC + tristate "Blackfin BF533-STAMP Flash Chip Support" + depends on BFIN533_STAMP && MTD_CFI + select MTD_PARTITIONS + default y + help + Map driver which allows for simultaneous utilization of + ethernet and CFI parallel flash. + + If compiled as a module, it will be called bfin-async-flash. + config MTD_UCLINUX tristate "Generic uClinux RAM/ROM filesystem support" depends on MTD_PARTITIONS && !MMU @@ -539,24 +549,6 @@ config MTD_DMV182 help Map driver for Dy-4 SVME/DMV-182 board. -config MTD_BAST - tristate "Map driver for Simtec BAST (EB2410ITX) or Thorcom VR1000" - depends on ARCH_BAST || MACH_VR1000 - select MTD_PARTITIONS - select MTD_MAP_BANK_WIDTH_16 - select MTD_JEDECPROBE - help - Map driver for NOR flash on the Simtec BAST (EB2410ITX), or the - Thorcom VR1000 - - Note, this driver *cannot* over-ride the WP link on the - board, or currently detect the state of the link. - -config MTD_BAST_MAXSIZE - int "Maximum size for BAST flash area (MiB)" - depends on MTD_BAST - default "4" - config MTD_SHARP_SL tristate "ROM mapped on Sharp SL Series" depends on ARCH_PXA diff --git a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile index c6ce867..6cda6df 100644 --- a/drivers/mtd/maps/Makefile +++ b/drivers/mtd/maps/Makefile @@ -1,7 +1,6 @@ # # linux/drivers/maps/Makefile # -# $Id: Makefile.common,v 1.34 2005/11/07 11:14:26 gleixner Exp $ ifeq ($(CONFIG_MTD_COMPLEX_MAPPINGS),y) obj-$(CONFIG_MTD) += map_funcs.o @@ -10,7 +9,6 @@ endif # Chip mappings obj-$(CONFIG_MTD_CDB89712) += cdb89712.o obj-$(CONFIG_MTD_ARM_INTEGRATOR)+= integrator-flash.o -obj-$(CONFIG_MTD_BAST) += bast-flash.o obj-$(CONFIG_MTD_CFI_FLAGADM) += cfi_flagadm.o obj-$(CONFIG_MTD_DC21285) += dc21285.o obj-$(CONFIG_MTD_DILNETPC) += dilnetpc.o @@ -66,3 +64,4 @@ obj-$(CONFIG_MTD_SHARP_SL) += sharpsl-flash.o obj-$(CONFIG_MTD_PLATRAM) += plat-ram.o obj-$(CONFIG_MTD_OMAP_NOR) += omap_nor.o obj-$(CONFIG_MTD_INTEL_VR_NOR) += intel_vr_nor.o +obj-$(CONFIG_MTD_BFIN_ASYNC) += bfin-async-flash.o diff --git a/drivers/mtd/maps/amd76xrom.c b/drivers/mtd/maps/amd76xrom.c index 728aed6..948b86f3 100644 --- a/drivers/mtd/maps/amd76xrom.c +++ b/drivers/mtd/maps/amd76xrom.c @@ -2,7 +2,6 @@ * amd76xrom.c * * Normal mappings of chips in physical memory - * $Id: amd76xrom.c,v 1.21 2005/11/07 11:14:26 gleixner Exp $ */ #include <linux/module.h> diff --git a/drivers/mtd/maps/autcpu12-nvram.c b/drivers/mtd/maps/autcpu12-nvram.c index 7ed3424..cf32267 100644 --- a/drivers/mtd/maps/autcpu12-nvram.c +++ b/drivers/mtd/maps/autcpu12-nvram.c @@ -2,8 +2,6 @@ * NV-RAM memory access on autcpu12 * (C) 2002 Thomas Gleixner (gleixner@autronix.de) * - * $Id: autcpu12-nvram.c,v 1.9 2005/11/07 11:14:26 gleixner Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or diff --git a/drivers/mtd/maps/bast-flash.c b/drivers/mtd/maps/bast-flash.c deleted file mode 100644 index 1f49206..0000000 --- a/drivers/mtd/maps/bast-flash.c +++ /dev/null @@ -1,226 +0,0 @@ -/* linux/drivers/mtd/maps/bast-flash.c - * - * Copyright (c) 2004-2005 Simtec Electronics - * Ben Dooks <ben@simtec.co.uk> - * - * Simtec Bast (EB2410ITX) NOR MTD Mapping driver - * - * Changelog: - * 20-Sep-2004 BJD Initial version - * 17-Jan-2005 BJD Add whole device if no partitions found - * - * $Id: bast-flash.c,v 1.5 2005/11/07 11:14:26 gleixner Exp $ - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA -*/ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/string.h> -#include <linux/ioport.h> -#include <linux/device.h> -#include <linux/slab.h> -#include <linux/platform_device.h> -#include <linux/mtd/mtd.h> -#include <linux/mtd/map.h> -#include <linux/mtd/partitions.h> - -#include <asm/io.h> -#include <asm/mach/flash.h> - -#include <asm/arch/map.h> -#include <asm/arch/bast-map.h> -#include <asm/arch/bast-cpld.h> - -#ifdef CONFIG_MTD_BAST_MAXSIZE -#define AREA_MAXSIZE (CONFIG_MTD_BAST_MAXSIZE * SZ_1M) -#else -#define AREA_MAXSIZE (32 * SZ_1M) -#endif - -#define PFX "bast-flash: " - -struct bast_flash_info { - struct mtd_info *mtd; - struct map_info map; - struct mtd_partition *partitions; - struct resource *area; -}; - -static const char *probes[] = { "RedBoot", "cmdlinepart", NULL }; - -static void bast_flash_setrw(int to) -{ - unsigned int val; - unsigned long flags; - - local_irq_save(flags); - val = __raw_readb(BAST_VA_CTRL3); - - if (to) - val |= BAST_CPLD_CTRL3_ROMWEN; - else - val &= ~BAST_CPLD_CTRL3_ROMWEN; - - pr_debug("new cpld ctrl3=%02x\n", val); - - __raw_writeb(val, BAST_VA_CTRL3); - local_irq_restore(flags); -} - -static int bast_flash_remove(struct platform_device *pdev) -{ - struct bast_flash_info *info = platform_get_drvdata(pdev); - - platform_set_drvdata(pdev, NULL); - - if (info == NULL) - return 0; - - if (info->map.virt != NULL) - iounmap(info->map.virt); - - if (info->mtd) { - del_mtd_partitions(info->mtd); - map_destroy(info->mtd); - } - - kfree(info->partitions); - - if (info->area) { - release_resource(info->area); - kfree(info->area); - } - - kfree(info); - - return 0; -} - -static int bast_flash_probe(struct platform_device *pdev) -{ - struct bast_flash_info *info; - struct resource *res; - int err = 0; - - info = kmalloc(sizeof(*info), GFP_KERNEL); - if (info == NULL) { - printk(KERN_ERR PFX "no memory for flash info\n"); - err = -ENOMEM; - goto exit_error; - } - - memzero(info, sizeof(*info)); - platform_set_drvdata(pdev, info); - - res = pdev->resource; /* assume that the flash has one resource */ - - info->map.phys = res->start; - info->map.size = res->end - res->start + 1; - info->map.name = pdev->dev.bus_id; - info->map.bankwidth = 2; - - if (info->map.size > AREA_MAXSIZE) - info->map.size = AREA_MAXSIZE; - - pr_debug("%s: area %08lx, size %ld\n", __func__, - info->map.phys, info->map.size); - - info->area = request_mem_region(res->start, info->map.size, - pdev->name); - if (info->area == NULL) { - printk(KERN_ERR PFX "cannot reserve flash memory region\n"); - err = -ENOENT; - goto exit_error; - } - - info->map.virt = ioremap(res->start, info->map.size); - pr_debug("%s: virt at %08x\n", __func__, (int)info->map.virt); - - if (info->map.virt == 0) { - printk(KERN_ERR PFX "failed to ioremap() region\n"); - err = -EIO; - goto exit_error; - } - - simple_map_init(&info->map); - - /* enable the write to the flash area */ - - bast_flash_setrw(1); - - /* probe for the device(s) */ - - info->mtd = do_map_probe("jedec_probe", &info->map); - if (info->mtd == NULL) - info->mtd = do_map_probe("cfi_probe", &info->map); - - if (info->mtd == NULL) { - printk(KERN_ERR PFX "map_probe() failed\n"); - err = -ENXIO; - goto exit_error; - } - - /* mark ourselves as the owner */ - info->mtd->owner = THIS_MODULE; - - err = parse_mtd_partitions(info->mtd, probes, &info->partitions, 0); - if (err > 0) { - err = add_mtd_partitions(info->mtd, info->partitions, err); - if (err) - printk(KERN_ERR PFX "cannot add/parse partitions\n"); - } else { - err = add_mtd_device(info->mtd); - } - - if (err == 0) - return 0; - - /* fall through to exit error */ - - exit_error: - bast_flash_remove(pdev); - return err; -} - -static struct platform_driver bast_flash_driver = { - .probe = bast_flash_probe, - .remove = bast_flash_remove, - .driver = { - .name = "bast-nor", - .owner = THIS_MODULE, - }, -}; - -static int __init bast_flash_init(void) -{ - printk("BAST NOR-Flash Driver, (c) 2004 Simtec Electronics\n"); - return platform_driver_register(&bast_flash_driver); -} - -static void __exit bast_flash_exit(void) -{ - platform_driver_unregister(&bast_flash_driver); -} - -module_init(bast_flash_init); -module_exit(bast_flash_exit); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>"); -MODULE_DESCRIPTION("BAST MTD Map driver"); -MODULE_ALIAS("platform:bast-nor"); diff --git a/drivers/mtd/maps/bfin-async-flash.c b/drivers/mtd/maps/bfin-async-flash.c new file mode 100644 index 0000000..6fec86a --- /dev/null +++ b/drivers/mtd/maps/bfin-async-flash.c @@ -0,0 +1,219 @@ +/* + * drivers/mtd/maps/bfin-async-flash.c + * + * Handle the case where flash memory and ethernet mac/phy are + * mapped onto the same async bank. The BF533-STAMP does this + * for example. All board-specific configuration goes in your + * board resources file. + * + * Copyright 2000 Nicolas Pitre <nico@cam.org> + * Copyright 2005-2008 Analog Devices Inc. + * + * Enter bugs at http://blackfin.uclinux.org/ + * + * Licensed under the GPL-2 or later. + */ + +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/partitions.h> +#include <linux/mtd/physmap.h> +#include <linux/platform_device.h> +#include <linux/types.h> + +#include <asm/blackfin.h> +#include <linux/gpio.h> +#include <linux/io.h> +#include <asm/unaligned.h> + +#define pr_devinit(fmt, args...) ({ static const __devinitconst char __fmt[] = fmt; printk(__fmt, ## args); }) + +#define DRIVER_NAME "bfin-async-flash" + +struct async_state { + struct mtd_info *mtd; + struct map_info map; + int enet_flash_pin; + uint32_t flash_ambctl0, flash_ambctl1; + uint32_t save_ambctl0, save_ambctl1; + unsigned long irq_flags; +}; + +static void switch_to_flash(struct async_state *state) +{ + local_irq_save(state->irq_flags); + + gpio_set_value(state->enet_flash_pin, 0); + + state->save_ambctl0 = bfin_read_EBIU_AMBCTL0(); + state->save_ambctl1 = bfin_read_EBIU_AMBCTL1(); + bfin_write_EBIU_AMBCTL0(state->flash_ambctl0); + bfin_write_EBIU_AMBCTL1(state->flash_ambctl1); + SSYNC(); +} + +static void switch_back(struct async_state *state) +{ + bfin_write_EBIU_AMBCTL0(state->save_ambctl0); + bfin_write_EBIU_AMBCTL1(state->save_ambctl1); + SSYNC(); + + gpio_set_value(state->enet_flash_pin, 1); + + local_irq_restore(state->irq_flags); +} + +static map_word bfin_read(struct map_info *map, unsigned long ofs) +{ + struct async_state *state = (struct async_state *)map->map_priv_1; + uint16_t word; + map_word test; + + switch_to_flash(state); + + word = readw(map->virt + ofs); + + switch_back(state); + + test.x[0] = word; + return test; +} + +static void bfin_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len) +{ + struct async_state *state = (struct async_state *)map->map_priv_1; + + switch_to_flash(state); + + memcpy(to, map->virt + from, len); + + switch_back(state); +} + +static void bfin_write(struct map_info *map, map_word d1, unsigned long ofs) +{ + struct async_state *state = (struct async_state *)map->map_priv_1; + uint16_t d; + + d = d1.x[0]; + + switch_to_flash(state); + + writew(d, map->virt + ofs); + SSYNC(); + + switch_back(state); +} + +static void bfin_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len) +{ + struct async_state *state = (struct async_state *)map->map_priv_1; + + switch_to_flash(state); + + memcpy(map->virt + to, from, len); + SSYNC(); + + switch_back(state); +} + +#ifdef CONFIG_MTD_PARTITIONS +static const char *part_probe_types[] = { "cmdlinepart", "RedBoot", NULL }; +#endif + +static int __devinit bfin_flash_probe(struct platform_device *pdev) +{ + int ret; + struct physmap_flash_data *pdata = pdev->dev.platform_data; + struct resource *memory = platform_get_resource(pdev, IORESOURCE_MEM, 0); + struct resource *flash_ambctl = platform_get_resource(pdev, IORESOURCE_MEM, 1); + struct async_state *state; + + state = kzalloc(sizeof(*state), GFP_KERNEL); + if (!state) + return -ENOMEM; + + state->map.name = DRIVER_NAME; + state->map.read = bfin_read; + state->map.copy_from = bfin_copy_from; + state->map.write = bfin_write; + state->map.copy_to = bfin_copy_to; + state->map.bankwidth = pdata->width; + state->map.size = memory->end - memory->start + 1; + state->map.virt = (void __iomem *)memory->start; + state->map.phys = memory->start; + state->map.map_priv_1 = (unsigned long)state; + state->enet_flash_pin = platform_get_irq(pdev, 0); + state->flash_ambctl0 = flash_ambctl->start; + state->flash_ambctl1 = flash_ambctl->end; + + if (gpio_request(state->enet_flash_pin, DRIVER_NAME)) { + pr_devinit(KERN_ERR DRIVER_NAME ": Failed to request gpio %d\n", state->enet_flash_pin); + return -EBUSY; + } + gpio_direction_output(state->enet_flash_pin, 1); + + pr_devinit(KERN_NOTICE DRIVER_NAME ": probing %d-bit flash bus\n", state->map.bankwidth * 8); + state->mtd = do_map_probe(memory->name, &state->map); + if (!state->mtd) + return -ENXIO; + +#ifdef CONFIG_MTD_PARTITIONS + ret = parse_mtd_partitions(state->mtd, part_probe_types, &pdata->parts, 0); + if (ret > 0) { + pr_devinit(KERN_NOTICE DRIVER_NAME ": Using commandline partition definition\n"); + add_mtd_partitions(state->mtd, pdata->parts, ret); + + } else if (pdata->nr_parts) { + pr_devinit(KERN_NOTICE DRIVER_NAME ": Using board partition definition\n"); + add_mtd_partitions(state->mtd, pdata->parts, pdata->nr_parts); + + } else +#endif + { + pr_devinit(KERN_NOTICE DRIVER_NAME ": no partition info available, registering whole flash at once\n"); + add_mtd_device(state->mtd); + } + + platform_set_drvdata(pdev, state); + + return 0; +} + +static int __devexit bfin_flash_remove(struct platform_device *pdev) +{ + struct async_state *state = platform_get_drvdata(pdev); + gpio_free(state->enet_flash_pin); +#ifdef CONFIG_MTD_PARTITIONS + del_mtd_partitions(state->mtd); +#endif + map_destroy(state->mtd); + kfree(state); + return 0; +} + +static struct platform_driver bfin_flash_driver = { + .probe = bfin_flash_probe, + .remove = __devexit_p(bfin_flash_remove), + .driver = { + .name = DRIVER_NAME, + }, +}; + +static int __init bfin_flash_init(void) +{ + return platform_driver_register(&bfin_flash_driver); +} +module_init(bfin_flash_init); + +static void __exit bfin_flash_exit(void) +{ + platform_driver_unregister(&bfin_flash_driver); +} +module_exit(bfin_flash_exit); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("MTD map driver for Blackfins with flash/ethernet on same async bank"); diff --git a/drivers/mtd/maps/cdb89712.c b/drivers/mtd/maps/cdb89712.c index 9f17bb6..cb507da 100644 --- a/drivers/mtd/maps/cdb89712.c +++ b/drivers/mtd/maps/cdb89712.c @@ -1,7 +1,6 @@ /* * Flash on Cirrus CDB89712 * - * $Id: cdb89712.c,v 1.11 2005/11/07 11:14:26 gleixner Exp $ */ #include <linux/module.h> diff --git a/drivers/mtd/maps/ceiva.c b/drivers/mtd/maps/ceiva.c index 629e6e2..6464d48 100644 --- a/drivers/mtd/maps/ceiva.c +++ b/drivers/mtd/maps/ceiva.c @@ -11,7 +11,6 @@ * * (C) 2000 Nicolas Pitre <nico@cam.org> * - * $Id: ceiva.c,v 1.11 2004/09/16 23:27:12 gleixner Exp $ */ #include <linux/module.h> diff --git a/drivers/mtd/maps/cfi_flagadm.c b/drivers/mtd/maps/cfi_flagadm.c index 65e5ee5..0ecc3f6 100644 --- a/drivers/mtd/maps/cfi_flagadm.c +++ b/drivers/mtd/maps/cfi_flagadm.c @@ -1,8 +1,6 @@ /* * Copyright © 2001 Flaga hf. Medical Devices, Kári DavÃðsson <kd@flaga.is> * - * $Id: cfi_flagadm.c,v 1.15 2005/11/07 11:14:26 gleixner Exp $ - * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your diff --git a/drivers/mtd/maps/dbox2-flash.c b/drivers/mtd/maps/dbox2-flash.c index 92a9c7f..e115667 100644 --- a/drivers/mtd/maps/dbox2-flash.c +++ b/drivers/mtd/maps/dbox2-flash.c @@ -1,6 +1,4 @@ /* - * $Id: dbox2-flash.c,v 1.14 2005/11/07 11:14:26 gleixner Exp $ - * * D-Box 2 flash driver */ diff --git a/drivers/mtd/maps/dc21285.c b/drivers/mtd/maps/dc21285.c index b32bb93..3aa018c 100644 --- a/drivers/mtd/maps/dc21285.c +++ b/drivers/mtd/maps/dc21285.c @@ -4,8 +4,6 @@ * (C) 2000 Nicolas Pitre <nico@cam.org> * * This code is GPL - * - * $Id: dc21285.c,v 1.24 2005/11/07 11:14:26 gleixner Exp $ */ #include <linux/module.h> #include <linux/types.h> diff --git a/drivers/mtd/maps/dilnetpc.c b/drivers/mtd/maps/dilnetpc.c index 1c3b34a..0713e3a 100644 --- a/drivers/mtd/maps/dilnetpc.c +++ b/drivers/mtd/maps/dilnetpc.c @@ -14,8 +14,6 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA * - * $Id: dilnetpc.c,v 1.20 2005/11/07 11:14:26 gleixner Exp $ - * * The DIL/Net PC is a tiny embedded PC board made by SSV Embedded Systems * featuring the AMD Elan SC410 processor. There are two variants of this * board: DNP/1486 and ADNP/1486. The DNP version has 2 megs of flash diff --git a/drivers/mtd/maps/dmv182.c b/drivers/mtd/maps/dmv182.c index e0558b0..d171674 100644 --- a/drivers/mtd/maps/dmv182.c +++ b/drivers/mtd/maps/dmv182.c @@ -4,8 +4,6 @@ * * Flash map driver for the Dy4 SVME182 board * - * $Id: dmv182.c,v 1.6 2005/11/07 11:14:26 gleixner Exp $ - * * Copyright 2003-2004, TimeSys Corporation * * Based on the SVME181 flash map, by Tom Nelson, Dot4, Inc. for TimeSys Corp. diff --git a/drivers/mtd/maps/ebony.c b/drivers/mtd/maps/ebony.c index 1488bb9..d92b7c7 100644 --- a/drivers/mtd/maps/ebony.c +++ b/drivers/mtd/maps/ebony.c @@ -1,6 +1,4 @@ /* - * $Id: ebony.c,v 1.16 2005/11/07 11:14:26 gleixner Exp $ - * * Mapping for Ebony user flash * * Matt Porter <mporter@kernel.crashing.org> diff --git a/drivers/mtd/maps/edb7312.c b/drivers/mtd/maps/edb7312.c index 1c5b97c..9433738 100644 --- a/drivers/mtd/maps/edb7312.c +++ b/drivers/mtd/maps/edb7312.c @@ -1,6 +1,4 @@ /* - * $Id: edb7312.c,v 1.14 2005/11/07 11:14:27 gleixner Exp $ - * * Handle mapping of the NOR flash on Cogent EDB7312 boards * * Copyright 2002 SYSGO Real-Time Solutions GmbH diff --git a/drivers/mtd/maps/fortunet.c b/drivers/mtd/maps/fortunet.c index 7c50c27..a8e3fde 100644 --- a/drivers/mtd/maps/fortunet.c +++ b/drivers/mtd/maps/fortunet.c @@ -1,6 +1,5 @@ /* fortunet.c memory map * - * $Id: fortunet.c,v 1.11 2005/11/07 11:14:27 gleixner Exp $ */ #include <linux/module.h> diff --git a/drivers/mtd/maps/h720x-flash.c b/drivers/mtd/maps/h720x-flash.c index 6dde318..ef89154 100644 --- a/drivers/mtd/maps/h720x-flash.c +++ b/drivers/mtd/maps/h720x-flash.c @@ -2,8 +2,6 @@ * Flash memory access on Hynix GMS30C7201/HMS30C7202 based * evaluation boards * - * $Id: h720x-flash.c,v 1.12 2005/11/07 11:14:27 gleixner Exp $ - * * (C) 2002 Jungjun Kim <jungjun.kim@hynix.com> * 2003 Thomas Gleixner <tglx@linutronix.de> */ diff --git a/drivers/mtd/maps/ichxrom.c b/drivers/mtd/maps/ichxrom.c index 2c884c4..aeb6c91 100644 --- a/drivers/mtd/maps/ichxrom.c +++ b/drivers/mtd/maps/ichxrom.c @@ -2,7 +2,6 @@ * ichxrom.c * * Normal mappings of chips in physical memory - * $Id: ichxrom.c,v 1.19 2005/11/07 11:14:27 gleixner Exp $ */ #include <linux/module.h> diff --git a/drivers/mtd/maps/impa7.c b/drivers/mtd/maps/impa7.c index a0b4dc7..2682ab5 100644 --- a/drivers/mtd/maps/impa7.c +++ b/drivers/mtd/maps/impa7.c @@ -1,6 +1,4 @@ /* - * $Id: impa7.c,v 1.14 2005/11/07 11:14:27 gleixner Exp $ - * * Handle mapping of the NOR flash on implementa A7 boards * * Copyright 2002 SYSGO Real-Time Solutions GmbH diff --git a/drivers/mtd/maps/integrator-flash.c b/drivers/mtd/maps/integrator-flash.c index 325c888..ee361aa 100644 --- a/drivers/mtd/maps/integrator-flash.c +++ b/drivers/mtd/maps/integrator-flash.c @@ -22,8 +22,6 @@ This is access code for flashes using ARM's flash partitioning standards. - $Id: integrator-flash.c,v 1.20 2005/11/07 11:14:27 gleixner Exp $ - ======================================================================*/ #include <linux/module.h> diff --git a/drivers/mtd/maps/ipaq-flash.c b/drivers/mtd/maps/ipaq-flash.c index f27c132..a806119 100644 --- a/drivers/mtd/maps/ipaq-flash.c +++ b/drivers/mtd/maps/ipaq-flash.c @@ -4,8 +4,6 @@ * (C) 2000 Nicolas Pitre <nico@cam.org> * (C) 2002 Hewlett-Packard Company <jamey.hicks@hp.com> * (C) 2003 Christian Pellegrin <chri@ascensit.com>, <chri@infis.univ.ts.it>: concatenation of multiple flashes - * - * $Id: ipaq-flash.c,v 1.5 2005/11/07 11:14:27 gleixner Exp $ */ #include <linux/module.h> diff --git a/drivers/mtd/maps/ixp2000.c b/drivers/mtd/maps/ixp2000.c index c8396b8..c226479 100644 --- a/drivers/mtd/maps/ixp2000.c +++ b/drivers/mtd/maps/ixp2000.c @@ -1,6 +1,4 @@ /* - * $Id: ixp2000.c,v 1.9 2005/11/07 11:14:27 gleixner Exp $ - * * drivers/mtd/maps/ixp2000.c * * Mapping for the Intel XScale IXP2000 based systems diff --git a/drivers/mtd/maps/ixp4xx.c b/drivers/mtd/maps/ixp4xx.c index 01f19a4..9c7a5fb 100644 --- a/drivers/mtd/maps/ixp4xx.c +++ b/drivers/mtd/maps/ixp4xx.c @@ -1,6 +1,4 @@ /* - * $Id: ixp4xx.c,v 1.13 2005/11/16 16:23:21 dvrabel Exp $ - * * drivers/mtd/maps/ixp4xx.c * * MTD Map file for IXP4XX based systems. Please do not make per-board diff --git a/drivers/mtd/maps/l440gx.c b/drivers/mtd/maps/l440gx.c index 67620ad..9e05450 100644 --- a/drivers/mtd/maps/l440gx.c +++ b/drivers/mtd/maps/l440gx.c @@ -1,6 +1,4 @@ /* - * $Id: l440gx.c,v 1.18 2005/11/07 11:14:27 gleixner Exp $ - * * BIOS Flash chip on Intel 440GX board. * * Bugs this currently does not work under linuxBIOS. diff --git a/drivers/mtd/maps/map_funcs.c b/drivers/mtd/maps/map_funcs.c index 9105e6c..3f26837 100644 --- a/drivers/mtd/maps/map_funcs.c +++ b/drivers/mtd/maps/map_funcs.c @@ -1,6 +1,4 @@ /* - * $Id: map_funcs.c,v 1.10 2005/06/06 23:04:36 tpoynor Exp $ - * * Out-of-line map I/O functions for simple maps when CONFIG_COMPLEX_MAPPINGS * is enabled. */ diff --git a/drivers/mtd/maps/mbx860.c b/drivers/mtd/maps/mbx860.c index 06b1187..706f673 100644 --- a/drivers/mtd/maps/mbx860.c +++ b/drivers/mtd/maps/mbx860.c @@ -1,6 +1,4 @@ /* - * $Id: mbx860.c,v 1.9 2005/11/07 11:14:27 gleixner Exp $ - * * Handle mapping of the flash on MBX860 boards * * Author: Anton Todorov diff --git a/drivers/mtd/maps/netsc520.c b/drivers/mtd/maps/netsc520.c index 95dcab2..c0cb319 100644 --- a/drivers/mtd/maps/netsc520.c +++ b/drivers/mtd/maps/netsc520.c @@ -3,8 +3,6 @@ * Copyright (C) 2001 Mark Langsdorf (mark.langsdorf@amd.com) * based on sc520cdp.c by Sysgo Real-Time Solutions GmbH * - * $Id: netsc520.c,v 1.14 2005/11/07 11:14:27 gleixner Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or diff --git a/drivers/mtd/maps/nettel.c b/drivers/mtd/maps/nettel.c index 0c9b305..965e6c6 100644 --- a/drivers/mtd/maps/nettel.c +++ b/drivers/mtd/maps/nettel.c @@ -5,8 +5,6 @@ * * (C) Copyright 2000-2001, Greg Ungerer (gerg@snapgear.com) * (C) Copyright 2001-2002, SnapGear (www.snapgear.com) - * - * $Id: nettel.c,v 1.12 2005/11/29 14:30:00 gleixner Exp $ */ /****************************************************************************/ diff --git a/drivers/mtd/maps/octagon-5066.c b/drivers/mtd/maps/octagon-5066.c index a6642db..43e04c1 100644 --- a/drivers/mtd/maps/octagon-5066.c +++ b/drivers/mtd/maps/octagon-5066.c @@ -1,4 +1,3 @@ -// $Id: octagon-5066.c,v 1.28 2005/11/07 11:14:27 gleixner Exp $ /* ###################################################################### Octagon 5066 MTD Driver. diff --git a/drivers/mtd/maps/omap-toto-flash.c b/drivers/mtd/maps/omap-toto-flash.c index e6e391e..0a60ebb 100644 --- a/drivers/mtd/maps/omap-toto-flash.c +++ b/drivers/mtd/maps/omap-toto-flash.c @@ -4,8 +4,6 @@ * jzhang@ti.com (C) 2003 Texas Instruments. * * (C) 2002 MontVista Software, Inc. - * - * $Id: omap-toto-flash.c,v 1.5 2005/11/07 11:14:27 gleixner Exp $ */ #include <linux/module.h> diff --git a/drivers/mtd/maps/pci.c b/drivers/mtd/maps/pci.c index d2ab1ba..5c6a25c 100644 --- a/drivers/mtd/maps/pci.c +++ b/drivers/mtd/maps/pci.c @@ -7,8 +7,6 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * - * $Id: pci.c,v 1.14 2005/11/17 08:20:27 dwmw2 Exp $ - * * Generic PCI memory map driver. We support the following boards: * - Intel IQ80310 ATU. * - Intel EBSA285 (blank rom programming mode). Tested working 27/09/2001 diff --git a/drivers/mtd/maps/pcmciamtd.c b/drivers/mtd/maps/pcmciamtd.c index 0cc31675..90924fb 100644 --- a/drivers/mtd/maps/pcmciamtd.c +++ b/drivers/mtd/maps/pcmciamtd.c @@ -1,6 +1,4 @@ /* - * $Id: pcmciamtd.c,v 1.55 2005/11/07 11:14:28 gleixner Exp $ - * * pcmciamtd.c - MTD driver for PCMCIA flash memory cards * * Author: Simon Evans <spse@secret.org.uk> @@ -48,7 +46,6 @@ static const int debug = 0; #define DRIVER_DESC "PCMCIA Flash memory card driver" -#define DRIVER_VERSION "$Revision: 1.55 $" /* Size of the PCMCIA address space: 26 bits = 64 MB */ #define MAX_PCMCIA_ADDR 0x4000000 @@ -785,7 +782,7 @@ static struct pcmcia_driver pcmciamtd_driver = { static int __init init_pcmciamtd(void) { - info(DRIVER_DESC " " DRIVER_VERSION); + info(DRIVER_DESC); if(bankwidth && bankwidth != 1 && bankwidth != 2) { info("bad bankwidth (%d), using default", bankwidth); diff --git a/drivers/mtd/maps/physmap.c b/drivers/mtd/maps/physmap.c index 183255f..42d844f 100644 --- a/drivers/mtd/maps/physmap.c +++ b/drivers/mtd/maps/physmap.c @@ -1,6 +1,4 @@ /* - * $Id: physmap.c,v 1.39 2005/11/29 14:49:36 gleixner Exp $ - * * Normal mappings of chips in physical memory * * Copyright (C) 2003 MontaVista Software Inc. @@ -203,7 +201,19 @@ static int physmap_flash_suspend(struct platform_device *dev, pm_message_t state int i; for (i = 0; i < MAX_RESOURCES && info->mtd[i]; i++) - ret |= info->mtd[i]->suspend(info->mtd[i]); + if (info->mtd[i]->suspend) { + ret = info->mtd[i]->suspend(info->mtd[i]); + if (ret) + goto fail; + } + + return 0; +fail: + for (--i; i >= 0; --i) + if (info->mtd[i]->suspend) { + BUG_ON(!info->mtd[i]->resume); + info->mtd[i]->resume(info->mtd[i]); + } return ret; } @@ -214,7 +224,8 @@ static int physmap_flash_resume(struct platform_device *dev) int i; for (i = 0; i < MAX_RESOURCES && info->mtd[i]; i++) - info->mtd[i]->resume(info->mtd[i]); + if (info->mtd[i]->resume) + info->mtd[i]->resume(info->mtd[i]); return 0; } @@ -225,8 +236,9 @@ static void physmap_flash_shutdown(struct platform_device *dev) int i; for (i = 0; i < MAX_RESOURCES && info->mtd[i]; i++) - if (info->mtd[i]->suspend(info->mtd[i]) == 0) - info->mtd[i]->resume(info->mtd[i]); + if (info->mtd[i]->suspend && info->mtd[i]->resume) + if (info->mtd[i]->suspend(info->mtd[i]) == 0) + info->mtd[i]->resume(info->mtd[i]); } #else #define physmap_flash_suspend NULL diff --git a/drivers/mtd/maps/plat-ram.c b/drivers/mtd/maps/plat-ram.c index 3eb2643..e7dd9c8 100644 --- a/drivers/mtd/maps/plat-ram.c +++ b/drivers/mtd/maps/plat-ram.c @@ -6,8 +6,6 @@ * * Generic platfrom device based RAM map * - * $Id: plat-ram.c,v 1.7 2005/11/07 11:14:28 gleixner Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or diff --git a/drivers/mtd/maps/redwood.c b/drivers/mtd/maps/redwood.c index 4d858b3..de002eb 100644 --- a/drivers/mtd/maps/redwood.c +++ b/drivers/mtd/maps/redwood.c @@ -1,6 +1,4 @@ /* - * $Id: redwood.c,v 1.11 2005/11/07 11:14:28 gleixner Exp $ - * * drivers/mtd/maps/redwood.c * * FLASH map for the IBM Redwood 4/5/6 boards. diff --git a/drivers/mtd/maps/rpxlite.c b/drivers/mtd/maps/rpxlite.c index 809a0c8..14d90ed 100644 --- a/drivers/mtd/maps/rpxlite.c +++ b/drivers/mtd/maps/rpxlite.c @@ -1,6 +1,4 @@ /* - * $Id: rpxlite.c,v 1.22 2004/11/04 13:24:15 gleixner Exp $ - * * Handle mapping of the flash on the RPX Lite and CLLF boards */ diff --git a/drivers/mtd/maps/sa1100-flash.c b/drivers/mtd/maps/sa1100-flash.c index c7d5a52..e177a43 100644 --- a/drivers/mtd/maps/sa1100-flash.c +++ b/drivers/mtd/maps/sa1100-flash.c @@ -2,8 +2,6 @@ * Flash memory access on SA11x0 based devices * * (C) 2000 Nicolas Pitre <nico@cam.org> - * - * $Id: sa1100-flash.c,v 1.51 2005/11/07 11:14:28 gleixner Exp $ */ #include <linux/module.h> #include <linux/types.h> diff --git a/drivers/mtd/maps/sbc8240.c b/drivers/mtd/maps/sbc8240.c index b8c1331..6e1e99c 100644 --- a/drivers/mtd/maps/sbc8240.c +++ b/drivers/mtd/maps/sbc8240.c @@ -4,9 +4,6 @@ * Carolyn Smith, Tektronix, Inc. * * This code is GPLed - * - * $Id: sbc8240.c,v 1.5 2005/11/07 11:14:28 gleixner Exp $ - * */ /* diff --git a/drivers/mtd/maps/sbc_gxx.c b/drivers/mtd/maps/sbc_gxx.c index 7cc4041..1b1c0b7 100644 --- a/drivers/mtd/maps/sbc_gxx.c +++ b/drivers/mtd/maps/sbc_gxx.c @@ -17,8 +17,6 @@ along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA - $Id: sbc_gxx.c,v 1.35 2005/11/07 11:14:28 gleixner Exp $ - The SBC-MediaGX / SBC-GXx has up to 16 MiB of Intel StrataFlash (28F320/28F640) in x8 mode. diff --git a/drivers/mtd/maps/sc520cdp.c b/drivers/mtd/maps/sc520cdp.c index 4045e37..85c1e56 100644 --- a/drivers/mtd/maps/sc520cdp.c +++ b/drivers/mtd/maps/sc520cdp.c @@ -16,8 +16,6 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA * - * $Id: sc520cdp.c,v 1.23 2005/11/17 08:20:27 dwmw2 Exp $ - * * * The SC520CDP is an evaluation board for the Elan SC520 processor available * from AMD. It has two banks of 32-bit Flash ROM, each 8 Megabytes in size, diff --git a/drivers/mtd/maps/scb2_flash.c b/drivers/mtd/maps/scb2_flash.c index 0fc5584..21169e6 100644 --- a/drivers/mtd/maps/scb2_flash.c +++ b/drivers/mtd/maps/scb2_flash.c @@ -1,6 +1,5 @@ /* * MTD map driver for BIOS Flash on Intel SCB2 boards - * $Id: scb2_flash.c,v 1.12 2005/03/18 14:04:35 gleixner Exp $ * Copyright (C) 2002 Sun Microsystems, Inc. * Tim Hockin <thockin@sun.com> * diff --git a/drivers/mtd/maps/scx200_docflash.c b/drivers/mtd/maps/scx200_docflash.c index 5e2bce2..b5391eb 100644 --- a/drivers/mtd/maps/scx200_docflash.c +++ b/drivers/mtd/maps/scx200_docflash.c @@ -2,8 +2,6 @@ Copyright (c) 2001,2002 Christer Weinigel <wingel@nano-system.com> - $Id: scx200_docflash.c,v 1.12 2005/11/07 11:14:28 gleixner Exp $ - National Semiconductor SCx200 flash mapped with DOCCS */ diff --git a/drivers/mtd/maps/sharpsl-flash.c b/drivers/mtd/maps/sharpsl-flash.c index 917dc77..026eab0 100644 --- a/drivers/mtd/maps/sharpsl-flash.c +++ b/drivers/mtd/maps/sharpsl-flash.c @@ -4,8 +4,6 @@ * Copyright (C) 2001 Lineo Japan, Inc. * Copyright (C) 2002 SHARP * - * $Id: sharpsl-flash.c,v 1.7 2005/11/07 11:14:28 gleixner Exp $ - * * based on rpxlite.c,v 1.15 2001/10/02 15:05:14 dwmw2 Exp * Handle mapping of the flash on the RPX Lite and CLLF boards * diff --git a/drivers/mtd/maps/solutionengine.c b/drivers/mtd/maps/solutionengine.c index d76ceef..0eb41d9 100644 --- a/drivers/mtd/maps/solutionengine.c +++ b/drivers/mtd/maps/solutionengine.c @@ -1,6 +1,4 @@ /* - * $Id: solutionengine.c,v 1.15 2005/11/07 11:14:28 gleixner Exp $ - * * Flash and EPROM on Hitachi Solution Engine and similar boards. * * (C) 2001 Red Hat, Inc. diff --git a/drivers/mtd/maps/sun_uflash.c b/drivers/mtd/maps/sun_uflash.c index 001af7f..0d7c883 100644 --- a/drivers/mtd/maps/sun_uflash.c +++ b/drivers/mtd/maps/sun_uflash.c @@ -1,4 +1,4 @@ -/* $Id: sun_uflash.c,v 1.13 2005/11/07 11:14:28 gleixner Exp $ +/* * * sun_uflash - Driver implementation for user-programmable flash * present on many Sun Microsystems SME boardsets. diff --git a/drivers/mtd/maps/tqm8xxl.c b/drivers/mtd/maps/tqm8xxl.c index 5217340..a5d3d85 100644 --- a/drivers/mtd/maps/tqm8xxl.c +++ b/drivers/mtd/maps/tqm8xxl.c @@ -2,8 +2,6 @@ * Handle mapping of the flash memory access routines * on TQM8xxL based devices. * - * $Id: tqm8xxl.c,v 1.15 2005/11/07 11:14:28 gleixner Exp $ - * * based on rpxlite.c * * Copyright(C) 2001 Kirk Lee <kirk@hpc.ee.ntu.edu.tw> diff --git a/drivers/mtd/maps/ts5500_flash.c b/drivers/mtd/maps/ts5500_flash.c index b47270e..e2147bf 100644 --- a/drivers/mtd/maps/ts5500_flash.c +++ b/drivers/mtd/maps/ts5500_flash.c @@ -22,8 +22,6 @@ * - Drive A and B use the resident flash disk (RFD) flash translation layer. * - If you have created your own jffs file system and the bios overwrites * it during boot, try disabling Drive A: and B: in the boot order. - * - * $Id: ts5500_flash.c,v 1.5 2005/11/07 11:14:28 gleixner Exp $ */ #include <linux/init.h> diff --git a/drivers/mtd/maps/tsunami_flash.c b/drivers/mtd/maps/tsunami_flash.c index 0f915ac..77a8bfc 100644 --- a/drivers/mtd/maps/tsunami_flash.c +++ b/drivers/mtd/maps/tsunami_flash.c @@ -2,7 +2,6 @@ * tsunami_flash.c * * flash chip on alpha ds10... - * $Id: tsunami_flash.c,v 1.10 2005/11/07 11:14:29 gleixner Exp $ */ #include <asm/io.h> #include <asm/core_tsunami.h> diff --git a/drivers/mtd/maps/uclinux.c b/drivers/mtd/maps/uclinux.c index c42f4b8..0dc645f 100644 --- a/drivers/mtd/maps/uclinux.c +++ b/drivers/mtd/maps/uclinux.c @@ -4,8 +4,6 @@ * uclinux.c -- generic memory mapped MTD driver for uclinux * * (C) Copyright 2002, Greg Ungerer (gerg@snapgear.com) - * - * $Id: uclinux.c,v 1.12 2005/11/07 11:14:29 gleixner Exp $ */ /****************************************************************************/ @@ -15,6 +13,7 @@ #include <linux/init.h> #include <linux/kernel.h> #include <linux/fs.h> +#include <linux/mm.h> #include <linux/major.h> #include <linux/mtd/mtd.h> #include <linux/mtd/map.h> diff --git a/drivers/mtd/maps/vmax301.c b/drivers/mtd/maps/vmax301.c index b3e4873..5a0c9a3 100644 --- a/drivers/mtd/maps/vmax301.c +++ b/drivers/mtd/maps/vmax301.c @@ -1,4 +1,3 @@ -// $Id: vmax301.c,v 1.32 2005/11/07 11:14:29 gleixner Exp $ /* ###################################################################### Tempustech VMAX SBC301 MTD Driver. diff --git a/drivers/mtd/maps/walnut.c b/drivers/mtd/maps/walnut.c index ca93212..e243476 100644 --- a/drivers/mtd/maps/walnut.c +++ b/drivers/mtd/maps/walnut.c @@ -1,6 +1,4 @@ /* - * $Id: walnut.c,v 1.3 2005/11/07 11:14:29 gleixner Exp $ - * * Mapping for Walnut flash * (used ebony.c as a "framework") * diff --git a/drivers/mtd/maps/wr_sbc82xx_flash.c b/drivers/mtd/maps/wr_sbc82xx_flash.c index ac5b810..413b0cf 100644 --- a/drivers/mtd/maps/wr_sbc82xx_flash.c +++ b/drivers/mtd/maps/wr_sbc82xx_flash.c @@ -1,6 +1,4 @@ /* - * $Id: wr_sbc82xx_flash.c,v 1.8 2005/11/07 11:14:29 gleixner Exp $ - * * Map for flash chips on Wind River PowerQUICC II SBC82xx board. * * Copyright (C) 2004 Red Hat, Inc. diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c index 839eed84..9ff007c 100644 --- a/drivers/mtd/mtd_blkdevs.c +++ b/drivers/mtd/mtd_blkdevs.c @@ -1,6 +1,4 @@ /* - * $Id: mtd_blkdevs.c,v 1.27 2005/11/07 11:14:20 gleixner Exp $ - * * (C) 2003 David Woodhouse <dwmw2@infradead.org> * * Interface to Linux 2.5 block layer for MTD 'translation layers'. @@ -212,7 +210,7 @@ static struct block_device_operations mtd_blktrans_ops = { int add_mtd_blktrans_dev(struct mtd_blktrans_dev *new) { struct mtd_blktrans_ops *tr = new->tr; - struct list_head *this; + struct mtd_blktrans_dev *d; int last_devnum = -1; struct gendisk *gd; @@ -221,8 +219,7 @@ int add_mtd_blktrans_dev(struct mtd_blktrans_dev *new) BUG(); } - list_for_each(this, &tr->devs) { - struct mtd_blktrans_dev *d = list_entry(this, struct mtd_blktrans_dev, list); + list_for_each_entry(d, &tr->devs, list) { if (new->devnum == -1) { /* Use first free number */ if (d->devnum != last_devnum+1) { @@ -309,33 +306,24 @@ int del_mtd_blktrans_dev(struct mtd_blktrans_dev *old) static void blktrans_notify_remove(struct mtd_info *mtd) { - struct list_head *this, *this2, *next; - - list_for_each(this, &blktrans_majors) { - struct mtd_blktrans_ops *tr = list_entry(this, struct mtd_blktrans_ops, list); - - list_for_each_safe(this2, next, &tr->devs) { - struct mtd_blktrans_dev *dev = list_entry(this2, struct mtd_blktrans_dev, list); + struct mtd_blktrans_ops *tr; + struct mtd_blktrans_dev *dev, *next; + list_for_each_entry(tr, &blktrans_majors, list) + list_for_each_entry_safe(dev, next, &tr->devs, list) if (dev->mtd == mtd) tr->remove_dev(dev); - } - } } static void blktrans_notify_add(struct mtd_info *mtd) { - struct list_head *this; + struct mtd_blktrans_ops *tr; if (mtd->type == MTD_ABSENT) return; - list_for_each(this, &blktrans_majors) { - struct mtd_blktrans_ops *tr = list_entry(this, struct mtd_blktrans_ops, list); - + list_for_each_entry(tr, &blktrans_majors, list) tr->add_mtd(tr, mtd); - } - } static struct mtd_notifier blktrans_notifier = { @@ -406,7 +394,7 @@ int register_mtd_blktrans(struct mtd_blktrans_ops *tr) int deregister_mtd_blktrans(struct mtd_blktrans_ops *tr) { - struct list_head *this, *next; + struct mtd_blktrans_dev *dev, *next; mutex_lock(&mtd_table_mutex); @@ -416,10 +404,8 @@ int deregister_mtd_blktrans(struct mtd_blktrans_ops *tr) /* Remove it from the list of active majors */ list_del(&tr->list); - list_for_each_safe(this, next, &tr->devs) { - struct mtd_blktrans_dev *dev = list_entry(this, struct mtd_blktrans_dev, list); + list_for_each_entry_safe(dev, next, &tr->devs, list) tr->remove_dev(dev); - } blk_cleanup_queue(tr->blkcore_priv->rq); unregister_blkdev(tr->major, tr->name); diff --git a/drivers/mtd/mtdblock.c b/drivers/mtd/mtdblock.c index 952da30..208c6fa 100644 --- a/drivers/mtd/mtdblock.c +++ b/drivers/mtd/mtdblock.c @@ -1,8 +1,6 @@ /* * Direct MTD block device access * - * $Id: mtdblock.c,v 1.68 2005/11/07 11:14:20 gleixner Exp $ - * * (C) 2000-2003 Nicolas Pitre <nico@cam.org> * (C) 1999-2003 David Woodhouse <dwmw2@infradead.org> */ diff --git a/drivers/mtd/mtdblock_ro.c b/drivers/mtd/mtdblock_ro.c index f79dbb4..852165f 100644 --- a/drivers/mtd/mtdblock_ro.c +++ b/drivers/mtd/mtdblock_ro.c @@ -1,6 +1,4 @@ /* - * $Id: mtdblock_ro.c,v 1.19 2004/11/16 18:28:59 dwmw2 Exp $ - * * (C) 2003 David Woodhouse <dwmw2@infradead.org> * * Simple read-only (writable only for RAM) mtdblock driver diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index aef9f4b..d2f3318 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -1,6 +1,4 @@ /* - * $Id: mtdchar.c,v 1.76 2005/11/07 11:14:20 gleixner Exp $ - * * Character-device access to raw MTD devices. * */ @@ -494,6 +492,7 @@ static int mtd_ioctl(struct inode *inode, struct file *file, { struct mtd_oob_buf buf; struct mtd_oob_ops ops; + struct mtd_oob_buf __user *user_buf = argp; uint32_t retlen; if(!(file->f_mode & 2)) @@ -537,8 +536,7 @@ static int mtd_ioctl(struct inode *inode, struct file *file, if (ops.oobretlen > 0xFFFFFFFFU) ret = -EOVERFLOW; retlen = ops.oobretlen; - if (copy_to_user(&((struct mtd_oob_buf *)argp)->length, - &retlen, sizeof(buf.length))) + if (copy_to_user(&user_buf->length, &retlen, sizeof(buf.length))) ret = -EFAULT; kfree(ops.oobbuf); @@ -592,29 +590,29 @@ static int mtd_ioctl(struct inode *inode, struct file *file, case MEMLOCK: { - struct erase_info_user info; + struct erase_info_user einfo; - if (copy_from_user(&info, argp, sizeof(info))) + if (copy_from_user(&einfo, argp, sizeof(einfo))) return -EFAULT; if (!mtd->lock) ret = -EOPNOTSUPP; else - ret = mtd->lock(mtd, info.start, info.length); + ret = mtd->lock(mtd, einfo.start, einfo.length); break; } case MEMUNLOCK: { - struct erase_info_user info; + struct erase_info_user einfo; - if (copy_from_user(&info, argp, sizeof(info))) + if (copy_from_user(&einfo, argp, sizeof(einfo))) return -EFAULT; if (!mtd->unlock) ret = -EOPNOTSUPP; else - ret = mtd->unlock(mtd, info.start, info.length); + ret = mtd->unlock(mtd, einfo.start, einfo.length); break; } @@ -714,15 +712,15 @@ static int mtd_ioctl(struct inode *inode, struct file *file, case OTPLOCK: { - struct otp_info info; + struct otp_info oinfo; if (mfi->mode != MTD_MODE_OTP_USER) return -EINVAL; - if (copy_from_user(&info, argp, sizeof(info))) + if (copy_from_user(&oinfo, argp, sizeof(oinfo))) return -EFAULT; if (!mtd->lock_user_prot_reg) return -EOPNOTSUPP; - ret = mtd->lock_user_prot_reg(mtd, info.start, info.length); + ret = mtd->lock_user_prot_reg(mtd, oinfo.start, oinfo.length); break; } #endif diff --git a/drivers/mtd/mtdconcat.c b/drivers/mtd/mtdconcat.c index d563dcd..2972a5e 100644 --- a/drivers/mtd/mtdconcat.c +++ b/drivers/mtd/mtdconcat.c @@ -6,8 +6,6 @@ * NAND support by Christian Gan <cgan@iders.ca> * * This code is GPL - * - * $Id: mtdconcat.c,v 1.11 2005/11/07 11:14:20 gleixner Exp $ */ #include <linux/kernel.h> diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c index f7e7890..a9d2469 100644 --- a/drivers/mtd/mtdcore.c +++ b/drivers/mtd/mtdcore.c @@ -1,6 +1,4 @@ /* - * $Id: mtdcore.c,v 1.47 2005/11/07 11:14:20 gleixner Exp $ - * * Core registration and callback routines for MTD * drivers and users. * @@ -53,7 +51,7 @@ int add_mtd_device(struct mtd_info *mtd) for (i=0; i < MAX_MTD_DEVICES; i++) if (!mtd_table[i]) { - struct list_head *this; + struct mtd_notifier *not; mtd_table[i] = mtd; mtd->index = i; @@ -72,10 +70,8 @@ int add_mtd_device(struct mtd_info *mtd) DEBUG(0, "mtd: Giving out device %d to %s\n",i, mtd->name); /* No need to get a refcount on the module containing the notifier, since we hold the mtd_table_mutex */ - list_for_each(this, &mtd_notifiers) { - struct mtd_notifier *not = list_entry(this, struct mtd_notifier, list); + list_for_each_entry(not, &mtd_notifiers, list) not->add(mtd); - } mutex_unlock(&mtd_table_mutex); /* We _know_ we aren't being removed, because @@ -113,14 +109,12 @@ int del_mtd_device (struct mtd_info *mtd) mtd->index, mtd->name, mtd->usecount); ret = -EBUSY; } else { - struct list_head *this; + struct mtd_notifier *not; /* No need to get a refcount on the module containing the notifier, since we hold the mtd_table_mutex */ - list_for_each(this, &mtd_notifiers) { - struct mtd_notifier *not = list_entry(this, struct mtd_notifier, list); + list_for_each_entry(not, &mtd_notifiers, list) not->remove(mtd); - } mtd_table[mtd->index] = NULL; diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c index 07c7011..edb90b5 100644 --- a/drivers/mtd/mtdpart.c +++ b/drivers/mtd/mtdpart.c @@ -5,8 +5,6 @@ * * This code is GPL * - * $Id: mtdpart.c,v 1.55 2005/11/07 11:14:20 gleixner Exp $ - * * 02-21-2002 Thomas Gleixner <gleixner@autronix.de> * added support for read_oob, write_oob */ @@ -46,8 +44,8 @@ struct mtd_part { * to the _real_ device. */ -static int part_read (struct mtd_info *mtd, loff_t from, size_t len, - size_t *retlen, u_char *buf) +static int part_read(struct mtd_info *mtd, loff_t from, size_t len, + size_t *retlen, u_char *buf) { struct mtd_part *part = PART(mtd); int res; @@ -56,7 +54,7 @@ static int part_read (struct mtd_info *mtd, loff_t from, size_t len, len = 0; else if (from + len > mtd->size) len = mtd->size - from; - res = part->master->read (part->master, from + part->offset, + res = part->master->read(part->master, from + part->offset, len, retlen, buf); if (unlikely(res)) { if (res == -EUCLEAN) @@ -67,8 +65,8 @@ static int part_read (struct mtd_info *mtd, loff_t from, size_t len, return res; } -static int part_point (struct mtd_info *mtd, loff_t from, size_t len, - size_t *retlen, void **virt, resource_size_t *phys) +static int part_point(struct mtd_info *mtd, loff_t from, size_t len, + size_t *retlen, void **virt, resource_size_t *phys) { struct mtd_part *part = PART(mtd); if (from >= mtd->size) @@ -87,7 +85,7 @@ static void part_unpoint(struct mtd_info *mtd, loff_t from, size_t len) } static int part_read_oob(struct mtd_info *mtd, loff_t from, - struct mtd_oob_ops *ops) + struct mtd_oob_ops *ops) { struct mtd_part *part = PART(mtd); int res; @@ -107,38 +105,38 @@ static int part_read_oob(struct mtd_info *mtd, loff_t from, return res; } -static int part_read_user_prot_reg (struct mtd_info *mtd, loff_t from, size_t len, - size_t *retlen, u_char *buf) +static int part_read_user_prot_reg(struct mtd_info *mtd, loff_t from, + size_t len, size_t *retlen, u_char *buf) { struct mtd_part *part = PART(mtd); - return part->master->read_user_prot_reg (part->master, from, + return part->master->read_user_prot_reg(part->master, from, len, retlen, buf); } -static int part_get_user_prot_info (struct mtd_info *mtd, - struct otp_info *buf, size_t len) +static int part_get_user_prot_info(struct mtd_info *mtd, + struct otp_info *buf, size_t len) { struct mtd_part *part = PART(mtd); - return part->master->get_user_prot_info (part->master, buf, len); + return part->master->get_user_prot_info(part->master, buf, len); } -static int part_read_fact_prot_reg (struct mtd_info *mtd, loff_t from, size_t len, - size_t *retlen, u_char *buf) +static int part_read_fact_prot_reg(struct mtd_info *mtd, loff_t from, + size_t len, size_t *retlen, u_char *buf) { struct mtd_part *part = PART(mtd); - return part->master->read_fact_prot_reg (part->master, from, + return part->master->read_fact_prot_reg(part->master, from, len, retlen, buf); } -static int part_get_fact_prot_info (struct mtd_info *mtd, - struct otp_info *buf, size_t len) +static int part_get_fact_prot_info(struct mtd_info *mtd, struct otp_info *buf, + size_t len) { struct mtd_part *part = PART(mtd); - return part->master->get_fact_prot_info (part->master, buf, len); + return part->master->get_fact_prot_info(part->master, buf, len); } -static int part_write (struct mtd_info *mtd, loff_t to, size_t len, - size_t *retlen, const u_char *buf) +static int part_write(struct mtd_info *mtd, loff_t to, size_t len, + size_t *retlen, const u_char *buf) { struct mtd_part *part = PART(mtd); if (!(mtd->flags & MTD_WRITEABLE)) @@ -147,12 +145,12 @@ static int part_write (struct mtd_info *mtd, loff_t to, size_t len, len = 0; else if (to + len > mtd->size) len = mtd->size - to; - return part->master->write (part->master, to + part->offset, + return part->master->write(part->master, to + part->offset, len, retlen, buf); } -static int part_panic_write (struct mtd_info *mtd, loff_t to, size_t len, - size_t *retlen, const u_char *buf) +static int part_panic_write(struct mtd_info *mtd, loff_t to, size_t len, + size_t *retlen, const u_char *buf) { struct mtd_part *part = PART(mtd); if (!(mtd->flags & MTD_WRITEABLE)) @@ -161,12 +159,12 @@ static int part_panic_write (struct mtd_info *mtd, loff_t to, size_t len, len = 0; else if (to + len > mtd->size) len = mtd->size - to; - return part->master->panic_write (part->master, to + part->offset, + return part->master->panic_write(part->master, to + part->offset, len, retlen, buf); } static int part_write_oob(struct mtd_info *mtd, loff_t to, - struct mtd_oob_ops *ops) + struct mtd_oob_ops *ops) { struct mtd_part *part = PART(mtd); @@ -180,31 +178,32 @@ static int part_write_oob(struct mtd_info *mtd, loff_t to, return part->master->write_oob(part->master, to + part->offset, ops); } -static int part_write_user_prot_reg (struct mtd_info *mtd, loff_t from, size_t len, - size_t *retlen, u_char *buf) +static int part_write_user_prot_reg(struct mtd_info *mtd, loff_t from, + size_t len, size_t *retlen, u_char *buf) { struct mtd_part *part = PART(mtd); - return part->master->write_user_prot_reg (part->master, from, + return part->master->write_user_prot_reg(part->master, from, len, retlen, buf); } -static int part_lock_user_prot_reg (struct mtd_info *mtd, loff_t from, size_t len) +static int part_lock_user_prot_reg(struct mtd_info *mtd, loff_t from, + size_t len) { struct mtd_part *part = PART(mtd); - return part->master->lock_user_prot_reg (part->master, from, len); + return part->master->lock_user_prot_reg(part->master, from, len); } -static int part_writev (struct mtd_info *mtd, const struct kvec *vecs, - unsigned long count, loff_t to, size_t *retlen) +static int part_writev(struct mtd_info *mtd, const struct kvec *vecs, + unsigned long count, loff_t to, size_t *retlen) { struct mtd_part *part = PART(mtd); if (!(mtd->flags & MTD_WRITEABLE)) return -EROFS; - return part->master->writev (part->master, vecs, count, + return part->master->writev(part->master, vecs, count, to + part->offset, retlen); } -static int part_erase (struct mtd_info *mtd, struct erase_info *instr) +static int part_erase(struct mtd_info *mtd, struct erase_info *instr) { struct mtd_part *part = PART(mtd); int ret; @@ -236,7 +235,7 @@ void mtd_erase_callback(struct erase_info *instr) } EXPORT_SYMBOL_GPL(mtd_erase_callback); -static int part_lock (struct mtd_info *mtd, loff_t ofs, size_t len) +static int part_lock(struct mtd_info *mtd, loff_t ofs, size_t len) { struct mtd_part *part = PART(mtd); if ((len + ofs) > mtd->size) @@ -244,7 +243,7 @@ static int part_lock (struct mtd_info *mtd, loff_t ofs, size_t len) return part->master->lock(part->master, ofs + part->offset, len); } -static int part_unlock (struct mtd_info *mtd, loff_t ofs, size_t len) +static int part_unlock(struct mtd_info *mtd, loff_t ofs, size_t len) { struct mtd_part *part = PART(mtd); if ((len + ofs) > mtd->size) @@ -270,7 +269,7 @@ static void part_resume(struct mtd_info *mtd) part->master->resume(part->master); } -static int part_block_isbad (struct mtd_info *mtd, loff_t ofs) +static int part_block_isbad(struct mtd_info *mtd, loff_t ofs) { struct mtd_part *part = PART(mtd); if (ofs >= mtd->size) @@ -279,7 +278,7 @@ static int part_block_isbad (struct mtd_info *mtd, loff_t ofs) return part->master->block_isbad(part->master, ofs); } -static int part_block_markbad (struct mtd_info *mtd, loff_t ofs) +static int part_block_markbad(struct mtd_info *mtd, loff_t ofs) { struct mtd_part *part = PART(mtd); int res; @@ -302,229 +301,237 @@ static int part_block_markbad (struct mtd_info *mtd, loff_t ofs) int del_mtd_partitions(struct mtd_info *master) { - struct list_head *node; - struct mtd_part *slave; + struct mtd_part *slave, *next; - for (node = mtd_partitions.next; - node != &mtd_partitions; - node = node->next) { - slave = list_entry(node, struct mtd_part, list); + list_for_each_entry_safe(slave, next, &mtd_partitions, list) if (slave->master == master) { - struct list_head *prev = node->prev; - __list_del(prev, node->next); - if(slave->registered) + list_del(&slave->list); + if (slave->registered) del_mtd_device(&slave->mtd); kfree(slave); - node = prev; } - } return 0; } +EXPORT_SYMBOL(del_mtd_partitions); -/* - * This function, given a master MTD object and a partition table, creates - * and registers slave MTD objects which are bound to the master according to - * the partition definitions. - * (Q: should we register the master MTD object as well?) - */ - -int add_mtd_partitions(struct mtd_info *master, - const struct mtd_partition *parts, - int nbparts) +static struct mtd_part *add_one_partition(struct mtd_info *master, + const struct mtd_partition *part, int partno, + u_int32_t cur_offset) { struct mtd_part *slave; - u_int32_t cur_offset = 0; - int i; - - printk (KERN_NOTICE "Creating %d MTD partitions on \"%s\":\n", nbparts, master->name); - - for (i = 0; i < nbparts; i++) { - /* allocate the partition structure */ - slave = kzalloc (sizeof(*slave), GFP_KERNEL); - if (!slave) { - printk ("memory allocation error while creating partitions for \"%s\"\n", - master->name); - del_mtd_partitions(master); - return -ENOMEM; - } - list_add(&slave->list, &mtd_partitions); + /* allocate the partition structure */ + slave = kzalloc(sizeof(*slave), GFP_KERNEL); + if (!slave) { + printk(KERN_ERR"memory allocation error while creating partitions for \"%s\"\n", + master->name); + del_mtd_partitions(master); + return NULL; + } + list_add(&slave->list, &mtd_partitions); - /* set up the MTD object for this partition */ - slave->mtd.type = master->type; - slave->mtd.flags = master->flags & ~parts[i].mask_flags; - slave->mtd.size = parts[i].size; - slave->mtd.writesize = master->writesize; - slave->mtd.oobsize = master->oobsize; - slave->mtd.oobavail = master->oobavail; - slave->mtd.subpage_sft = master->subpage_sft; + /* set up the MTD object for this partition */ + slave->mtd.type = master->type; + slave->mtd.flags = master->flags & ~part->mask_flags; + slave->mtd.size = part->size; + slave->mtd.writesize = master->writesize; + slave->mtd.oobsize = master->oobsize; + slave->mtd.oobavail = master->oobavail; + slave->mtd.subpage_sft = master->subpage_sft; - slave->mtd.name = parts[i].name; - slave->mtd.owner = master->owner; + slave->mtd.name = part->name; + slave->mtd.owner = master->owner; - slave->mtd.read = part_read; - slave->mtd.write = part_write; + slave->mtd.read = part_read; + slave->mtd.write = part_write; - if (master->panic_write) - slave->mtd.panic_write = part_panic_write; + if (master->panic_write) + slave->mtd.panic_write = part_panic_write; - if(master->point && master->unpoint){ - slave->mtd.point = part_point; - slave->mtd.unpoint = part_unpoint; - } + if (master->point && master->unpoint) { + slave->mtd.point = part_point; + slave->mtd.unpoint = part_unpoint; + } - if (master->read_oob) - slave->mtd.read_oob = part_read_oob; - if (master->write_oob) - slave->mtd.write_oob = part_write_oob; - if(master->read_user_prot_reg) - slave->mtd.read_user_prot_reg = part_read_user_prot_reg; - if(master->read_fact_prot_reg) - slave->mtd.read_fact_prot_reg = part_read_fact_prot_reg; - if(master->write_user_prot_reg) - slave->mtd.write_user_prot_reg = part_write_user_prot_reg; - if(master->lock_user_prot_reg) - slave->mtd.lock_user_prot_reg = part_lock_user_prot_reg; - if(master->get_user_prot_info) - slave->mtd.get_user_prot_info = part_get_user_prot_info; - if(master->get_fact_prot_info) - slave->mtd.get_fact_prot_info = part_get_fact_prot_info; - if (master->sync) - slave->mtd.sync = part_sync; - if (!i && master->suspend && master->resume) { - slave->mtd.suspend = part_suspend; - slave->mtd.resume = part_resume; + if (master->read_oob) + slave->mtd.read_oob = part_read_oob; + if (master->write_oob) + slave->mtd.write_oob = part_write_oob; + if (master->read_user_prot_reg) + slave->mtd.read_user_prot_reg = part_read_user_prot_reg; + if (master->read_fact_prot_reg) + slave->mtd.read_fact_prot_reg = part_read_fact_prot_reg; + if (master->write_user_prot_reg) + slave->mtd.write_user_prot_reg = part_write_user_prot_reg; + if (master->lock_user_prot_reg) + slave->mtd.lock_user_prot_reg = part_lock_user_prot_reg; + if (master->get_user_prot_info) + slave->mtd.get_user_prot_info = part_get_user_prot_info; + if (master->get_fact_prot_info) + slave->mtd.get_fact_prot_info = part_get_fact_prot_info; + if (master->sync) + slave->mtd.sync = part_sync; + if (!partno && master->suspend && master->resume) { + slave->mtd.suspend = part_suspend; + slave->mtd.resume = part_resume; + } + if (master->writev) + slave->mtd.writev = part_writev; + if (master->lock) + slave->mtd.lock = part_lock; + if (master->unlock) + slave->mtd.unlock = part_unlock; + if (master->block_isbad) + slave->mtd.block_isbad = part_block_isbad; + if (master->block_markbad) + slave->mtd.block_markbad = part_block_markbad; + slave->mtd.erase = part_erase; + slave->master = master; + slave->offset = part->offset; + slave->index = partno; + + if (slave->offset == MTDPART_OFS_APPEND) + slave->offset = cur_offset; + if (slave->offset == MTDPART_OFS_NXTBLK) { + slave->offset = cur_offset; + if ((cur_offset % master->erasesize) != 0) { + /* Round up to next erasesize */ + slave->offset = ((cur_offset / master->erasesize) + 1) * master->erasesize; + printk(KERN_NOTICE "Moving partition %d: " + "0x%08x -> 0x%08x\n", partno, + cur_offset, slave->offset); } - if (master->writev) - slave->mtd.writev = part_writev; - if (master->lock) - slave->mtd.lock = part_lock; - if (master->unlock) - slave->mtd.unlock = part_unlock; - if (master->block_isbad) - slave->mtd.block_isbad = part_block_isbad; - if (master->block_markbad) - slave->mtd.block_markbad = part_block_markbad; - slave->mtd.erase = part_erase; - slave->master = master; - slave->offset = parts[i].offset; - slave->index = i; - - if (slave->offset == MTDPART_OFS_APPEND) - slave->offset = cur_offset; - if (slave->offset == MTDPART_OFS_NXTBLK) { - slave->offset = cur_offset; - if ((cur_offset % master->erasesize) != 0) { - /* Round up to next erasesize */ - slave->offset = ((cur_offset / master->erasesize) + 1) * master->erasesize; - printk(KERN_NOTICE "Moving partition %d: " - "0x%08x -> 0x%08x\n", i, - cur_offset, slave->offset); + } + if (slave->mtd.size == MTDPART_SIZ_FULL) + slave->mtd.size = master->size - slave->offset; + + printk(KERN_NOTICE "0x%08x-0x%08x : \"%s\"\n", slave->offset, + slave->offset + slave->mtd.size, slave->mtd.name); + + /* let's do some sanity checks */ + if (slave->offset >= master->size) { + /* let's register it anyway to preserve ordering */ + slave->offset = 0; + slave->mtd.size = 0; + printk(KERN_ERR"mtd: partition \"%s\" is out of reach -- disabled\n", + part->name); + goto out_register; + } + if (slave->offset + slave->mtd.size > master->size) { + slave->mtd.size = master->size - slave->offset; + printk(KERN_WARNING"mtd: partition \"%s\" extends beyond the end of device \"%s\" -- size truncated to %#x\n", + part->name, master->name, slave->mtd.size); + } + if (master->numeraseregions > 1) { + /* Deal with variable erase size stuff */ + int i, max = master->numeraseregions; + u32 end = slave->offset + slave->mtd.size; + struct mtd_erase_region_info *regions = master->eraseregions; + + /* Find the first erase regions which is part of this + * partition. */ + for (i = 0; i < max && regions[i].offset <= slave->offset; i++) + ; + /* The loop searched for the region _behind_ the first one */ + i--; + + /* Pick biggest erasesize */ + for (; i < max && regions[i].offset < end; i++) { + if (slave->mtd.erasesize < regions[i].erasesize) { + slave->mtd.erasesize = regions[i].erasesize; } } - if (slave->mtd.size == MTDPART_SIZ_FULL) - slave->mtd.size = master->size - slave->offset; - cur_offset = slave->offset + slave->mtd.size; + BUG_ON(slave->mtd.erasesize == 0); + } else { + /* Single erase size */ + slave->mtd.erasesize = master->erasesize; + } - printk (KERN_NOTICE "0x%08x-0x%08x : \"%s\"\n", slave->offset, - slave->offset + slave->mtd.size, slave->mtd.name); + if ((slave->mtd.flags & MTD_WRITEABLE) && + (slave->offset % slave->mtd.erasesize)) { + /* Doesn't start on a boundary of major erase size */ + /* FIXME: Let it be writable if it is on a boundary of + * _minor_ erase size though */ + slave->mtd.flags &= ~MTD_WRITEABLE; + printk(KERN_WARNING"mtd: partition \"%s\" doesn't start on an erase block boundary -- force read-only\n", + part->name); + } + if ((slave->mtd.flags & MTD_WRITEABLE) && + (slave->mtd.size % slave->mtd.erasesize)) { + slave->mtd.flags &= ~MTD_WRITEABLE; + printk(KERN_WARNING"mtd: partition \"%s\" doesn't end on an erase block -- force read-only\n", + part->name); + } - /* let's do some sanity checks */ - if (slave->offset >= master->size) { - /* let's register it anyway to preserve ordering */ - slave->offset = 0; - slave->mtd.size = 0; - printk ("mtd: partition \"%s\" is out of reach -- disabled\n", - parts[i].name); - } - if (slave->offset + slave->mtd.size > master->size) { - slave->mtd.size = master->size - slave->offset; - printk ("mtd: partition \"%s\" extends beyond the end of device \"%s\" -- size truncated to %#x\n", - parts[i].name, master->name, slave->mtd.size); - } - if (master->numeraseregions>1) { - /* Deal with variable erase size stuff */ - int i; - struct mtd_erase_region_info *regions = master->eraseregions; - - /* Find the first erase regions which is part of this partition. */ - for (i=0; i < master->numeraseregions && slave->offset >= regions[i].offset; i++) - ; - - for (i--; i < master->numeraseregions && slave->offset + slave->mtd.size > regions[i].offset; i++) { - if (slave->mtd.erasesize < regions[i].erasesize) { - slave->mtd.erasesize = regions[i].erasesize; - } - } - } else { - /* Single erase size */ - slave->mtd.erasesize = master->erasesize; - } + slave->mtd.ecclayout = master->ecclayout; + if (master->block_isbad) { + uint32_t offs = 0; - if ((slave->mtd.flags & MTD_WRITEABLE) && - (slave->offset % slave->mtd.erasesize)) { - /* Doesn't start on a boundary of major erase size */ - /* FIXME: Let it be writable if it is on a boundary of _minor_ erase size though */ - slave->mtd.flags &= ~MTD_WRITEABLE; - printk ("mtd: partition \"%s\" doesn't start on an erase block boundary -- force read-only\n", - parts[i].name); - } - if ((slave->mtd.flags & MTD_WRITEABLE) && - (slave->mtd.size % slave->mtd.erasesize)) { - slave->mtd.flags &= ~MTD_WRITEABLE; - printk ("mtd: partition \"%s\" doesn't end on an erase block -- force read-only\n", - parts[i].name); + while (offs < slave->mtd.size) { + if (master->block_isbad(master, + offs + slave->offset)) + slave->mtd.ecc_stats.badblocks++; + offs += slave->mtd.erasesize; } + } - slave->mtd.ecclayout = master->ecclayout; - if (master->block_isbad) { - uint32_t offs = 0; +out_register: + if (part->mtdp) { + /* store the object pointer (caller may or may not register it*/ + *part->mtdp = &slave->mtd; + slave->registered = 0; + } else { + /* register our partition */ + add_mtd_device(&slave->mtd); + slave->registered = 1; + } + return slave; +} - while(offs < slave->mtd.size) { - if (master->block_isbad(master, - offs + slave->offset)) - slave->mtd.ecc_stats.badblocks++; - offs += slave->mtd.erasesize; - } - } +/* + * This function, given a master MTD object and a partition table, creates + * and registers slave MTD objects which are bound to the master according to + * the partition definitions. + * (Q: should we register the master MTD object as well?) + */ - if(parts[i].mtdp) - { /* store the object pointer (caller may or may not register it */ - *parts[i].mtdp = &slave->mtd; - slave->registered = 0; - } - else - { - /* register our partition */ - add_mtd_device(&slave->mtd); - slave->registered = 1; - } +int add_mtd_partitions(struct mtd_info *master, + const struct mtd_partition *parts, + int nbparts) +{ + struct mtd_part *slave; + u_int32_t cur_offset = 0; + int i; + + printk(KERN_NOTICE "Creating %d MTD partitions on \"%s\":\n", nbparts, master->name); + + for (i = 0; i < nbparts; i++) { + slave = add_one_partition(master, parts + i, i, cur_offset); + if (!slave) + return -ENOMEM; + cur_offset = slave->offset + slave->mtd.size; } return 0; } - EXPORT_SYMBOL(add_mtd_partitions); -EXPORT_SYMBOL(del_mtd_partitions); static DEFINE_SPINLOCK(part_parser_lock); static LIST_HEAD(part_parsers); static struct mtd_part_parser *get_partition_parser(const char *name) { - struct list_head *this; - void *ret = NULL; - spin_lock(&part_parser_lock); + struct mtd_part_parser *p, *ret = NULL; - list_for_each(this, &part_parsers) { - struct mtd_part_parser *p = list_entry(this, struct mtd_part_parser, list); + spin_lock(&part_parser_lock); + list_for_each_entry(p, &part_parsers, list) if (!strcmp(p->name, name) && try_module_get(p->owner)) { ret = p; break; } - } + spin_unlock(&part_parser_lock); return ret; @@ -538,6 +545,7 @@ int register_mtd_parser(struct mtd_part_parser *p) return 0; } +EXPORT_SYMBOL_GPL(register_mtd_parser); int deregister_mtd_parser(struct mtd_part_parser *p) { @@ -546,6 +554,7 @@ int deregister_mtd_parser(struct mtd_part_parser *p) spin_unlock(&part_parser_lock); return 0; } +EXPORT_SYMBOL_GPL(deregister_mtd_parser); int parse_mtd_partitions(struct mtd_info *master, const char **types, struct mtd_partition **pparts, unsigned long origin) @@ -573,7 +582,4 @@ int parse_mtd_partitions(struct mtd_info *master, const char **types, } return ret; } - EXPORT_SYMBOL_GPL(parse_mtd_partitions); -EXPORT_SYMBOL_GPL(register_mtd_parser); -EXPORT_SYMBOL_GPL(deregister_mtd_parser); diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig index 5076faf..71406e5 100644 --- a/drivers/mtd/nand/Kconfig +++ b/drivers/mtd/nand/Kconfig @@ -1,5 +1,4 @@ # drivers/mtd/nand/Kconfig -# $Id: Kconfig,v 1.35 2005/11/07 11:14:30 gleixner Exp $ menuconfig MTD_NAND tristate "NAND Device Support" @@ -272,22 +271,23 @@ config MTD_NAND_CS553X If you say "m", the module will be called "cs553x_nand.ko". -config MTD_NAND_AT91 - bool "Support for NAND Flash / SmartMedia on AT91" - depends on ARCH_AT91 +config MTD_NAND_ATMEL + tristate "Support for NAND Flash / SmartMedia on AT91 and AVR32" + depends on ARCH_AT91 || AVR32 help Enables support for NAND Flash / Smart Media Card interface - on Atmel AT91 processors. + on Atmel AT91 and AVR32 processors. choice - prompt "ECC management for NAND Flash / SmartMedia on AT91" - depends on MTD_NAND_AT91 + prompt "ECC management for NAND Flash / SmartMedia on AT91 / AVR32" + depends on MTD_NAND_ATMEL -config MTD_NAND_AT91_ECC_HW +config MTD_NAND_ATMEL_ECC_HW bool "Hardware ECC" - depends on ARCH_AT91SAM9263 || ARCH_AT91SAM9260 + depends on ARCH_AT91SAM9263 || ARCH_AT91SAM9260 || AVR32 help - Uses hardware ECC provided by the at91sam9260/at91sam9263 chip - instead of software ECC. + Use hardware ECC instead of software ECC when the chip + supports it. + The hardware ECC controller is capable of single bit error correction and 2-bit random detection per page. @@ -297,16 +297,16 @@ config MTD_NAND_AT91_ECC_HW If unsure, say Y -config MTD_NAND_AT91_ECC_SOFT +config MTD_NAND_ATMEL_ECC_SOFT bool "Software ECC" help - Uses software ECC. + Use software ECC. NB : hardware and software ECC schemes are incompatible. If you switch from one to another, you'll have to erase your mtd partition. -config MTD_NAND_AT91_ECC_NONE +config MTD_NAND_ATMEL_ECC_NONE bool "No ECC (testing only, DANGEROUS)" depends on DEBUG_KERNEL help diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile index a6e74a4..d772581 100644 --- a/drivers/mtd/nand/Makefile +++ b/drivers/mtd/nand/Makefile @@ -1,7 +1,6 @@ # # linux/drivers/nand/Makefile # -# $Id: Makefile.common,v 1.15 2004/11/26 12:28:22 dedekind Exp $ obj-$(CONFIG_MTD_NAND) += nand.o nand_ecc.o obj-$(CONFIG_MTD_NAND_IDS) += nand_ids.o @@ -24,7 +23,7 @@ obj-$(CONFIG_MTD_NAND_TS7250) += ts7250.o obj-$(CONFIG_MTD_NAND_NANDSIM) += nandsim.o obj-$(CONFIG_MTD_NAND_CS553X) += cs553x_nand.o obj-$(CONFIG_MTD_NAND_NDFC) += ndfc.o -obj-$(CONFIG_MTD_NAND_AT91) += at91_nand.o +obj-$(CONFIG_MTD_NAND_ATMEL) += atmel_nand.o obj-$(CONFIG_MTD_NAND_CM_X270) += cmx270_nand.o obj-$(CONFIG_MTD_NAND_BASLER_EXCITE) += excite_nandflash.o obj-$(CONFIG_MTD_NAND_PXA3xx) += pxa3xx_nand.o diff --git a/drivers/mtd/nand/at91_nand.c b/drivers/mtd/nand/atmel_nand.c index 0adb287..99aec46 100644 --- a/drivers/mtd/nand/at91_nand.c +++ b/drivers/mtd/nand/atmel_nand.c @@ -1,6 +1,4 @@ /* - * drivers/mtd/nand/at91_nand.c - * * Copyright (C) 2003 Rick Bronson * * Derived from drivers/mtd/nand/autcpu12.c @@ -31,20 +29,19 @@ #include <linux/mtd/nand.h> #include <linux/mtd/partitions.h> -#include <asm/io.h> -#include <asm/sizes.h> +#include <linux/gpio.h> +#include <linux/io.h> -#include <asm/hardware.h> #include <asm/arch/board.h> -#include <asm/arch/gpio.h> +#include <asm/arch/cpu.h> -#ifdef CONFIG_MTD_NAND_AT91_ECC_HW +#ifdef CONFIG_MTD_NAND_ATMEL_ECC_HW #define hard_ecc 1 #else #define hard_ecc 0 #endif -#ifdef CONFIG_MTD_NAND_AT91_ECC_NONE +#ifdef CONFIG_MTD_NAND_ATMEL_ECC_NONE #define no_ecc 1 #else #define no_ecc 0 @@ -52,18 +49,18 @@ /* Register access macros */ #define ecc_readl(add, reg) \ - __raw_readl(add + AT91_ECC_##reg) + __raw_readl(add + ATMEL_ECC_##reg) #define ecc_writel(add, reg, value) \ - __raw_writel((value), add + AT91_ECC_##reg) + __raw_writel((value), add + ATMEL_ECC_##reg) -#include <asm/arch/at91_ecc.h> /* AT91SAM9260/3 ECC registers */ +#include "atmel_nand_ecc.h" /* Hardware ECC registers */ /* oob layout for large page size * bad block info is on bytes 0 and 1 * the bytes have to be consecutives to avoid * several NAND_CMD_RNDOUT during read */ -static struct nand_ecclayout at91_oobinfo_large = { +static struct nand_ecclayout atmel_oobinfo_large = { .eccbytes = 4, .eccpos = {60, 61, 62, 63}, .oobfree = { @@ -76,7 +73,7 @@ static struct nand_ecclayout at91_oobinfo_large = { * the bytes have to be consecutives to avoid * several NAND_CMD_RNDOUT during read */ -static struct nand_ecclayout at91_oobinfo_small = { +static struct nand_ecclayout atmel_oobinfo_small = { .eccbytes = 4, .eccpos = {0, 1, 2, 3}, .oobfree = { @@ -84,11 +81,11 @@ static struct nand_ecclayout at91_oobinfo_small = { }, }; -struct at91_nand_host { +struct atmel_nand_host { struct nand_chip nand_chip; struct mtd_info mtd; void __iomem *io_base; - struct at91_nand_data *board; + struct atmel_nand_data *board; struct device *dev; void __iomem *ecc; }; @@ -96,34 +93,34 @@ struct at91_nand_host { /* * Enable NAND. */ -static void at91_nand_enable(struct at91_nand_host *host) +static void atmel_nand_enable(struct atmel_nand_host *host) { if (host->board->enable_pin) - at91_set_gpio_value(host->board->enable_pin, 0); + gpio_set_value(host->board->enable_pin, 0); } /* * Disable NAND. */ -static void at91_nand_disable(struct at91_nand_host *host) +static void atmel_nand_disable(struct atmel_nand_host *host) { if (host->board->enable_pin) - at91_set_gpio_value(host->board->enable_pin, 1); + gpio_set_value(host->board->enable_pin, 1); } /* * Hardware specific access to control-lines */ -static void at91_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) +static void atmel_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { struct nand_chip *nand_chip = mtd->priv; - struct at91_nand_host *host = nand_chip->priv; + struct atmel_nand_host *host = nand_chip->priv; if (ctrl & NAND_CTRL_CHANGE) { if (ctrl & NAND_NCE) - at91_nand_enable(host); + atmel_nand_enable(host); else - at91_nand_disable(host); + atmel_nand_disable(host); } if (cmd == NAND_CMD_NONE) return; @@ -137,18 +134,49 @@ static void at91_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) /* * Read the Device Ready pin. */ -static int at91_nand_device_ready(struct mtd_info *mtd) +static int atmel_nand_device_ready(struct mtd_info *mtd) { struct nand_chip *nand_chip = mtd->priv; - struct at91_nand_host *host = nand_chip->priv; + struct atmel_nand_host *host = nand_chip->priv; - return at91_get_gpio_value(host->board->rdy_pin); + return gpio_get_value(host->board->rdy_pin); +} + +/* + * Minimal-overhead PIO for data access. + */ +static void atmel_read_buf(struct mtd_info *mtd, u8 *buf, int len) +{ + struct nand_chip *nand_chip = mtd->priv; + + __raw_readsb(nand_chip->IO_ADDR_R, buf, len); +} + +static void atmel_read_buf16(struct mtd_info *mtd, u8 *buf, int len) +{ + struct nand_chip *nand_chip = mtd->priv; + + __raw_readsw(nand_chip->IO_ADDR_R, buf, len / 2); +} + +static void atmel_write_buf(struct mtd_info *mtd, const u8 *buf, int len) +{ + struct nand_chip *nand_chip = mtd->priv; + + __raw_writesb(nand_chip->IO_ADDR_W, buf, len); +} + +static void atmel_write_buf16(struct mtd_info *mtd, const u8 *buf, int len) +{ + struct nand_chip *nand_chip = mtd->priv; + + __raw_writesw(nand_chip->IO_ADDR_W, buf, len / 2); } /* * write oob for small pages */ -static int at91_nand_write_oob_512(struct mtd_info *mtd, +static int atmel_nand_write_oob_512(struct mtd_info *mtd, struct nand_chip *chip, int page) { int chunk = chip->ecc.bytes + chip->ecc.prepad + chip->ecc.postpad; @@ -176,7 +204,7 @@ static int at91_nand_write_oob_512(struct mtd_info *mtd, /* * read oob for small pages */ -static int at91_nand_read_oob_512(struct mtd_info *mtd, +static int atmel_nand_read_oob_512(struct mtd_info *mtd, struct nand_chip *chip, int page, int sndcmd) { if (sndcmd) { @@ -196,11 +224,11 @@ static int at91_nand_read_oob_512(struct mtd_info *mtd, * dat: raw data (unused) * ecc_code: buffer for ECC */ -static int at91_nand_calculate(struct mtd_info *mtd, +static int atmel_nand_calculate(struct mtd_info *mtd, const u_char *dat, unsigned char *ecc_code) { struct nand_chip *nand_chip = mtd->priv; - struct at91_nand_host *host = nand_chip->priv; + struct atmel_nand_host *host = nand_chip->priv; uint32_t *eccpos = nand_chip->ecc.layout->eccpos; unsigned int ecc_value; @@ -211,7 +239,7 @@ static int at91_nand_calculate(struct mtd_info *mtd, ecc_code[eccpos[1]] = (ecc_value >> 8) & 0xFF; /* get the last 2 ECC bytes */ - ecc_value = ecc_readl(host->ecc, NPR) & AT91_ECC_NPARITY; + ecc_value = ecc_readl(host->ecc, NPR) & ATMEL_ECC_NPARITY; ecc_code[eccpos[2]] = ecc_value & 0xFF; ecc_code[eccpos[3]] = (ecc_value >> 8) & 0xFF; @@ -226,7 +254,7 @@ static int at91_nand_calculate(struct mtd_info *mtd, * chip: nand chip info structure * buf: buffer to store read data */ -static int at91_nand_read_page(struct mtd_info *mtd, +static int atmel_nand_read_page(struct mtd_info *mtd, struct nand_chip *chip, uint8_t *buf) { int eccsize = chip->ecc.size; @@ -237,6 +265,19 @@ static int at91_nand_read_page(struct mtd_info *mtd, uint8_t *ecc_pos; int stat; + /* + * Errata: ALE is incorrectly wired up to the ECC controller + * on the AP7000, so it will include the address cycles in the + * ECC calculation. + * + * Workaround: Reset the parity registers before reading the + * actual data. + */ + if (cpu_is_at32ap7000()) { + struct atmel_nand_host *host = chip->priv; + ecc_writel(host->ecc, CR, ATMEL_ECC_RST); + } + /* read the page */ chip->read_buf(mtd, p, eccsize); @@ -285,11 +326,11 @@ static int at91_nand_read_page(struct mtd_info *mtd, * * Detect and correct a 1 bit error for a page */ -static int at91_nand_correct(struct mtd_info *mtd, u_char *dat, +static int atmel_nand_correct(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *isnull) { struct nand_chip *nand_chip = mtd->priv; - struct at91_nand_host *host = nand_chip->priv; + struct atmel_nand_host *host = nand_chip->priv; unsigned int ecc_status; unsigned int ecc_word, ecc_bit; @@ -297,43 +338,43 @@ static int at91_nand_correct(struct mtd_info *mtd, u_char *dat, ecc_status = ecc_readl(host->ecc, SR); /* if there's no error */ - if (likely(!(ecc_status & AT91_ECC_RECERR))) + if (likely(!(ecc_status & ATMEL_ECC_RECERR))) return 0; /* get error bit offset (4 bits) */ - ecc_bit = ecc_readl(host->ecc, PR) & AT91_ECC_BITADDR; + ecc_bit = ecc_readl(host->ecc, PR) & ATMEL_ECC_BITADDR; /* get word address (12 bits) */ - ecc_word = ecc_readl(host->ecc, PR) & AT91_ECC_WORDADDR; + ecc_word = ecc_readl(host->ecc, PR) & ATMEL_ECC_WORDADDR; ecc_word >>= 4; /* if there are multiple errors */ - if (ecc_status & AT91_ECC_MULERR) { + if (ecc_status & ATMEL_ECC_MULERR) { /* check if it is a freshly erased block * (filled with 0xff) */ - if ((ecc_bit == AT91_ECC_BITADDR) - && (ecc_word == (AT91_ECC_WORDADDR >> 4))) { + if ((ecc_bit == ATMEL_ECC_BITADDR) + && (ecc_word == (ATMEL_ECC_WORDADDR >> 4))) { /* the block has just been erased, return OK */ return 0; } /* it doesn't seems to be a freshly * erased block. * We can't correct so many errors */ - dev_dbg(host->dev, "at91_nand : multiple errors detected." + dev_dbg(host->dev, "atmel_nand : multiple errors detected." " Unable to correct.\n"); return -EIO; } /* if there's a single bit error : we can correct it */ - if (ecc_status & AT91_ECC_ECCERR) { + if (ecc_status & ATMEL_ECC_ECCERR) { /* there's nothing much to do here. * the bit error is on the ECC itself. */ - dev_dbg(host->dev, "at91_nand : one bit error on ECC code." + dev_dbg(host->dev, "atmel_nand : one bit error on ECC code." " Nothing to correct\n"); return 0; } - dev_dbg(host->dev, "at91_nand : one bit error on data." + dev_dbg(host->dev, "atmel_nand : one bit error on data." " (word offset in the page :" " 0x%x bit offset : 0x%x)\n", ecc_word, ecc_bit); @@ -345,14 +386,21 @@ static int at91_nand_correct(struct mtd_info *mtd, u_char *dat, /* 8 bits words */ dat[ecc_word] ^= (1 << ecc_bit); } - dev_dbg(host->dev, "at91_nand : error corrected\n"); + dev_dbg(host->dev, "atmel_nand : error corrected\n"); return 1; } /* - * Enable HW ECC : unsused + * Enable HW ECC : unused on most chips */ -static void at91_nand_hwctl(struct mtd_info *mtd, int mode) { ; } +static void atmel_nand_hwctl(struct mtd_info *mtd, int mode) +{ + if (cpu_is_at32ap7000()) { + struct nand_chip *nand_chip = mtd->priv; + struct atmel_nand_host *host = nand_chip->priv; + ecc_writel(host->ecc, CR, ATMEL_ECC_RST); + } +} #ifdef CONFIG_MTD_PARTITIONS static const char *part_probes[] = { "cmdlinepart", NULL }; @@ -361,9 +409,9 @@ static const char *part_probes[] = { "cmdlinepart", NULL }; /* * Probe for the NAND device. */ -static int __init at91_nand_probe(struct platform_device *pdev) +static int __init atmel_nand_probe(struct platform_device *pdev) { - struct at91_nand_host *host; + struct atmel_nand_host *host; struct mtd_info *mtd; struct nand_chip *nand_chip; struct resource *regs; @@ -375,24 +423,24 @@ static int __init at91_nand_probe(struct platform_device *pdev) int num_partitions = 0; #endif - /* Allocate memory for the device structure (and zero it) */ - host = kzalloc(sizeof(struct at91_nand_host), GFP_KERNEL); - if (!host) { - printk(KERN_ERR "at91_nand: failed to allocate device structure.\n"); - return -ENOMEM; - } - mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!mem) { - printk(KERN_ERR "at91_nand: can't get I/O resource mem\n"); + printk(KERN_ERR "atmel_nand: can't get I/O resource mem\n"); return -ENXIO; } + /* Allocate memory for the device structure (and zero it) */ + host = kzalloc(sizeof(struct atmel_nand_host), GFP_KERNEL); + if (!host) { + printk(KERN_ERR "atmel_nand: failed to allocate device structure.\n"); + return -ENOMEM; + } + host->io_base = ioremap(mem->start, mem->end - mem->start + 1); if (host->io_base == NULL) { - printk(KERN_ERR "at91_nand: ioremap failed\n"); - kfree(host); - return -EIO; + printk(KERN_ERR "atmel_nand: ioremap failed\n"); + res = -EIO; + goto err_nand_ioremap; } mtd = &host->mtd; @@ -407,14 +455,14 @@ static int __init at91_nand_probe(struct platform_device *pdev) /* Set address of NAND IO lines */ nand_chip->IO_ADDR_R = host->io_base; nand_chip->IO_ADDR_W = host->io_base; - nand_chip->cmd_ctrl = at91_nand_cmd_ctrl; + nand_chip->cmd_ctrl = atmel_nand_cmd_ctrl; if (host->board->rdy_pin) - nand_chip->dev_ready = at91_nand_device_ready; + nand_chip->dev_ready = atmel_nand_device_ready; regs = platform_get_resource(pdev, IORESOURCE_MEM, 1); if (!regs && hard_ecc) { - printk(KERN_ERR "at91_nand: can't get I/O resource " + printk(KERN_ERR "atmel_nand: can't get I/O resource " "regs\nFalling back on software ECC\n"); } @@ -424,15 +472,15 @@ static int __init at91_nand_probe(struct platform_device *pdev) if (hard_ecc && regs) { host->ecc = ioremap(regs->start, regs->end - regs->start + 1); if (host->ecc == NULL) { - printk(KERN_ERR "at91_nand: ioremap failed\n"); + printk(KERN_ERR "atmel_nand: ioremap failed\n"); res = -EIO; goto err_ecc_ioremap; } nand_chip->ecc.mode = NAND_ECC_HW_SYNDROME; - nand_chip->ecc.calculate = at91_nand_calculate; - nand_chip->ecc.correct = at91_nand_correct; - nand_chip->ecc.hwctl = at91_nand_hwctl; - nand_chip->ecc.read_page = at91_nand_read_page; + nand_chip->ecc.calculate = atmel_nand_calculate; + nand_chip->ecc.correct = atmel_nand_correct; + nand_chip->ecc.hwctl = atmel_nand_hwctl; + nand_chip->ecc.read_page = atmel_nand_read_page; nand_chip->ecc.bytes = 4; nand_chip->ecc.prepad = 0; nand_chip->ecc.postpad = 0; @@ -440,24 +488,30 @@ static int __init at91_nand_probe(struct platform_device *pdev) nand_chip->chip_delay = 20; /* 20us command delay time */ - if (host->board->bus_width_16) /* 16-bit bus width */ + if (host->board->bus_width_16) { /* 16-bit bus width */ nand_chip->options |= NAND_BUSWIDTH_16; + nand_chip->read_buf = atmel_read_buf16; + nand_chip->write_buf = atmel_write_buf16; + } else { + nand_chip->read_buf = atmel_read_buf; + nand_chip->write_buf = atmel_write_buf; + } platform_set_drvdata(pdev, host); - at91_nand_enable(host); + atmel_nand_enable(host); if (host->board->det_pin) { - if (at91_get_gpio_value(host->board->det_pin)) { - printk ("No SmartMedia card inserted.\n"); + if (gpio_get_value(host->board->det_pin)) { + printk("No SmartMedia card inserted.\n"); res = ENXIO; - goto out; + goto err_no_card; } } /* first scan to find the device and get the page size */ if (nand_scan_ident(mtd, 1)) { res = -ENXIO; - goto out; + goto err_scan_ident; } if (nand_chip->ecc.mode == NAND_ECC_HW_SYNDROME) { @@ -467,22 +521,22 @@ static int __init at91_nand_probe(struct platform_device *pdev) /* set ECC page size and oob layout */ switch (mtd->writesize) { case 512: - nand_chip->ecc.layout = &at91_oobinfo_small; - nand_chip->ecc.read_oob = at91_nand_read_oob_512; - nand_chip->ecc.write_oob = at91_nand_write_oob_512; - ecc_writel(host->ecc, MR, AT91_ECC_PAGESIZE_528); + nand_chip->ecc.layout = &atmel_oobinfo_small; + nand_chip->ecc.read_oob = atmel_nand_read_oob_512; + nand_chip->ecc.write_oob = atmel_nand_write_oob_512; + ecc_writel(host->ecc, MR, ATMEL_ECC_PAGESIZE_528); break; case 1024: - nand_chip->ecc.layout = &at91_oobinfo_large; - ecc_writel(host->ecc, MR, AT91_ECC_PAGESIZE_1056); + nand_chip->ecc.layout = &atmel_oobinfo_large; + ecc_writel(host->ecc, MR, ATMEL_ECC_PAGESIZE_1056); break; case 2048: - nand_chip->ecc.layout = &at91_oobinfo_large; - ecc_writel(host->ecc, MR, AT91_ECC_PAGESIZE_2112); + nand_chip->ecc.layout = &atmel_oobinfo_large; + ecc_writel(host->ecc, MR, ATMEL_ECC_PAGESIZE_2112); break; case 4096: - nand_chip->ecc.layout = &at91_oobinfo_large; - ecc_writel(host->ecc, MR, AT91_ECC_PAGESIZE_4224); + nand_chip->ecc.layout = &atmel_oobinfo_large; + ecc_writel(host->ecc, MR, ATMEL_ECC_PAGESIZE_4224); break; default: /* page size not handled by HW ECC */ @@ -502,12 +556,12 @@ static int __init at91_nand_probe(struct platform_device *pdev) /* second phase scan */ if (nand_scan_tail(mtd)) { res = -ENXIO; - goto out; + goto err_scan_tail; } #ifdef CONFIG_MTD_PARTITIONS #ifdef CONFIG_MTD_CMDLINE_PARTS - mtd->name = "at91_nand"; + mtd->name = "atmel_nand"; num_partitions = parse_mtd_partitions(mtd, part_probes, &partitions, 0); #endif @@ -516,9 +570,9 @@ static int __init at91_nand_probe(struct platform_device *pdev) &num_partitions); if ((!partitions) || (num_partitions == 0)) { - printk(KERN_ERR "at91_nand: No parititions defined, or unsupported device.\n"); + printk(KERN_ERR "atmel_nand: No parititions defined, or unsupported device.\n"); res = ENXIO; - goto release; + goto err_no_partitions; } res = add_mtd_partitions(mtd, partitions, num_partitions); @@ -530,17 +584,19 @@ static int __init at91_nand_probe(struct platform_device *pdev) return res; #ifdef CONFIG_MTD_PARTITIONS -release: +err_no_partitions: #endif nand_release(mtd); - -out: - iounmap(host->ecc); - -err_ecc_ioremap: - at91_nand_disable(host); +err_scan_tail: +err_scan_ident: +err_no_card: + atmel_nand_disable(host); platform_set_drvdata(pdev, NULL); + if (host->ecc) + iounmap(host->ecc); +err_ecc_ioremap: iounmap(host->io_base); +err_nand_ioremap: kfree(host); return res; } @@ -548,47 +604,47 @@ err_ecc_ioremap: /* * Remove a NAND device. */ -static int __devexit at91_nand_remove(struct platform_device *pdev) +static int __exit atmel_nand_remove(struct platform_device *pdev) { - struct at91_nand_host *host = platform_get_drvdata(pdev); + struct atmel_nand_host *host = platform_get_drvdata(pdev); struct mtd_info *mtd = &host->mtd; nand_release(mtd); - at91_nand_disable(host); + atmel_nand_disable(host); + if (host->ecc) + iounmap(host->ecc); iounmap(host->io_base); - iounmap(host->ecc); kfree(host); return 0; } -static struct platform_driver at91_nand_driver = { - .probe = at91_nand_probe, - .remove = at91_nand_remove, +static struct platform_driver atmel_nand_driver = { + .remove = __exit_p(atmel_nand_remove), .driver = { - .name = "at91_nand", + .name = "atmel_nand", .owner = THIS_MODULE, }, }; -static int __init at91_nand_init(void) +static int __init atmel_nand_init(void) { - return platform_driver_register(&at91_nand_driver); + return platform_driver_probe(&atmel_nand_driver, atmel_nand_probe); } -static void __exit at91_nand_exit(void) +static void __exit atmel_nand_exit(void) { - platform_driver_unregister(&at91_nand_driver); + platform_driver_unregister(&atmel_nand_driver); } -module_init(at91_nand_init); -module_exit(at91_nand_exit); +module_init(atmel_nand_init); +module_exit(atmel_nand_exit); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Rick Bronson"); -MODULE_DESCRIPTION("NAND/SmartMedia driver for AT91RM9200 / AT91SAM9"); -MODULE_ALIAS("platform:at91_nand"); +MODULE_DESCRIPTION("NAND/SmartMedia driver for AT91 / AVR32"); +MODULE_ALIAS("platform:atmel_nand"); diff --git a/drivers/mtd/nand/atmel_nand_ecc.h b/drivers/mtd/nand/atmel_nand_ecc.h new file mode 100644 index 0000000..1ee7f99 --- /dev/null +++ b/drivers/mtd/nand/atmel_nand_ecc.h @@ -0,0 +1,36 @@ +/* + * Error Corrected Code Controller (ECC) - System peripherals regsters. + * Based on AT91SAM9260 datasheet revision B. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#ifndef ATMEL_NAND_ECC_H +#define ATMEL_NAND_ECC_H + +#define ATMEL_ECC_CR 0x00 /* Control register */ +#define ATMEL_ECC_RST (1 << 0) /* Reset parity */ + +#define ATMEL_ECC_MR 0x04 /* Mode register */ +#define ATMEL_ECC_PAGESIZE (3 << 0) /* Page Size */ +#define ATMEL_ECC_PAGESIZE_528 (0) +#define ATMEL_ECC_PAGESIZE_1056 (1) +#define ATMEL_ECC_PAGESIZE_2112 (2) +#define ATMEL_ECC_PAGESIZE_4224 (3) + +#define ATMEL_ECC_SR 0x08 /* Status register */ +#define ATMEL_ECC_RECERR (1 << 0) /* Recoverable Error */ +#define ATMEL_ECC_ECCERR (1 << 1) /* ECC Single Bit Error */ +#define ATMEL_ECC_MULERR (1 << 2) /* Multiple Errors */ + +#define ATMEL_ECC_PR 0x0c /* Parity register */ +#define ATMEL_ECC_BITADDR (0xf << 0) /* Bit Error Address */ +#define ATMEL_ECC_WORDADDR (0xfff << 4) /* Word Error Address */ + +#define ATMEL_ECC_NPR 0x10 /* NParity register */ +#define ATMEL_ECC_NPARITY (0xffff << 0) /* NParity */ + +#endif diff --git a/drivers/mtd/nand/au1550nd.c b/drivers/mtd/nand/au1550nd.c index 09e421a..761946e 100644 --- a/drivers/mtd/nand/au1550nd.c +++ b/drivers/mtd/nand/au1550nd.c @@ -3,8 +3,6 @@ * * Copyright (C) 2004 Embedded Edge, LLC * - * $Id: au1550nd.c,v 1.13 2005/11/07 11:14:30 gleixner Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. @@ -604,8 +602,6 @@ module_init(au1xxx_nand_init); */ static void __exit au1550_cleanup(void) { - struct nand_chip *this = (struct nand_chip *)&au1550_mtd[1]; - /* Release resources, unregister device */ nand_release(au1550_mtd); diff --git a/drivers/mtd/nand/autcpu12.c b/drivers/mtd/nand/autcpu12.c index dd38011..553dd7e 100644 --- a/drivers/mtd/nand/autcpu12.c +++ b/drivers/mtd/nand/autcpu12.c @@ -6,8 +6,6 @@ * Derived from drivers/mtd/spia.c * Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com) * - * $Id: autcpu12.c,v 1.23 2005/11/07 11:14:30 gleixner Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. diff --git a/drivers/mtd/nand/cafe_nand.c b/drivers/mtd/nand/cafe_nand.c index da6ceaa..95345d0 100644 --- a/drivers/mtd/nand/cafe_nand.c +++ b/drivers/mtd/nand/cafe_nand.c @@ -626,10 +626,12 @@ static int __devinit cafe_nand_probe(struct pci_dev *pdev, { struct mtd_info *mtd; struct cafe_priv *cafe; - struct mtd_partition *parts; uint32_t ctrl; - int nr_parts; int err = 0; +#ifdef CONFIG_MTD_PARTITIONS + struct mtd_partition *parts; + int nr_parts; +#endif /* Very old versions shared the same PCI ident for all three functions on the chip. Verify the class too... */ diff --git a/drivers/mtd/nand/diskonchip.c b/drivers/mtd/nand/diskonchip.c index 0e72153..765d4f0 100644 --- a/drivers/mtd/nand/diskonchip.c +++ b/drivers/mtd/nand/diskonchip.c @@ -15,8 +15,6 @@ * converted to the generic Reed-Solomon library by Thomas Gleixner <tglx@linutronix.de> * * Interface to generic NAND code for M-Systems DiskOnChip devices - * - * $Id: diskonchip.c,v 1.55 2005/11/07 11:14:30 gleixner Exp $ */ #include <linux/kernel.h> @@ -54,8 +52,6 @@ static unsigned long __initdata doc_locations[] = { 0xe0000, 0xe2000, 0xe4000, 0xe6000, 0xe8000, 0xea000, 0xec000, 0xee000, #endif /* CONFIG_MTD_DOCPROBE_HIGH */ -#elif defined(__PPC__) - 0xe4000000, #else #warning Unknown architecture for DiskOnChip. No default probe locations defined #endif diff --git a/drivers/mtd/nand/edb7312.c b/drivers/mtd/nand/edb7312.c index ba67bbec..387e435 100644 --- a/drivers/mtd/nand/edb7312.c +++ b/drivers/mtd/nand/edb7312.c @@ -6,8 +6,6 @@ * Derived from drivers/mtd/nand/autcpu12.c * Copyright (c) 2001 Thomas Gleixner (gleixner@autronix.de) * - * $Id: edb7312.c,v 1.12 2005/11/07 11:14:30 gleixner Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. diff --git a/drivers/mtd/nand/excite_nandflash.c b/drivers/mtd/nand/excite_nandflash.c index bed8729..ced14b5 100644 --- a/drivers/mtd/nand/excite_nandflash.c +++ b/drivers/mtd/nand/excite_nandflash.c @@ -209,7 +209,7 @@ static int __init excite_nand_probe(struct device *dev) if (likely(!scan_res)) { DEBUG(MTD_DEBUG_LEVEL2, "%s: register partitions\n", module_id); add_mtd_partitions(&drvdata->board_mtd, partition_info, - sizeof partition_info / sizeof partition_info[0]); + ARRAY_SIZE(partition_info)); } else { iounmap(drvdata->regs); kfree(drvdata); diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c index 4b69aac..9dff513 100644 --- a/drivers/mtd/nand/fsl_elbc_nand.c +++ b/drivers/mtd/nand/fsl_elbc_nand.c @@ -89,7 +89,6 @@ static struct nand_ecclayout fsl_elbc_oob_sp_eccm0 = { .eccbytes = 3, .eccpos = {6, 7, 8}, .oobfree = { {0, 5}, {9, 7} }, - .oobavail = 12, }; /* Small Page FLASH with FMR[ECCM] = 1 */ @@ -97,7 +96,6 @@ static struct nand_ecclayout fsl_elbc_oob_sp_eccm1 = { .eccbytes = 3, .eccpos = {8, 9, 10}, .oobfree = { {0, 5}, {6, 2}, {11, 5} }, - .oobavail = 12, }; /* Large Page FLASH with FMR[ECCM] = 0 */ @@ -105,7 +103,6 @@ static struct nand_ecclayout fsl_elbc_oob_lp_eccm0 = { .eccbytes = 12, .eccpos = {6, 7, 8, 22, 23, 24, 38, 39, 40, 54, 55, 56}, .oobfree = { {1, 5}, {9, 13}, {25, 13}, {41, 13}, {57, 7} }, - .oobavail = 48, }; /* Large Page FLASH with FMR[ECCM] = 1 */ @@ -113,7 +110,48 @@ static struct nand_ecclayout fsl_elbc_oob_lp_eccm1 = { .eccbytes = 12, .eccpos = {8, 9, 10, 24, 25, 26, 40, 41, 42, 56, 57, 58}, .oobfree = { {1, 7}, {11, 13}, {27, 13}, {43, 13}, {59, 5} }, - .oobavail = 48, +}; + +/* + * fsl_elbc_oob_lp_eccm* specify that LP NAND's OOB free area starts at offset + * 1, so we have to adjust bad block pattern. This pattern should be used for + * x8 chips only. So far hardware does not support x16 chips anyway. + */ +static u8 scan_ff_pattern[] = { 0xff, }; + +static struct nand_bbt_descr largepage_memorybased = { + .options = 0, + .offs = 0, + .len = 1, + .pattern = scan_ff_pattern, +}; + +/* + * ELBC may use HW ECC, so that OOB offsets, that NAND core uses for bbt, + * interfere with ECC positions, that's why we implement our own descriptors. + * OOB {11, 5}, works for both SP and LP chips, with ECCM = 1 and ECCM = 0. + */ +static u8 bbt_pattern[] = {'B', 'b', 't', '0' }; +static u8 mirror_pattern[] = {'1', 't', 'b', 'B' }; + +static struct nand_bbt_descr bbt_main_descr = { + .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE | + NAND_BBT_2BIT | NAND_BBT_VERSION, + .offs = 11, + .len = 4, + .veroffs = 15, + .maxblocks = 4, + .pattern = bbt_pattern, +}; + +static struct nand_bbt_descr bbt_mirror_descr = { + .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE | + NAND_BBT_2BIT | NAND_BBT_VERSION, + .offs = 11, + .len = 4, + .veroffs = 15, + .maxblocks = 4, + .pattern = mirror_pattern, }; /*=================================*/ @@ -687,8 +725,7 @@ static int fsl_elbc_chip_init_tail(struct mtd_info *mtd) chip->ecc.layout = (priv->fmr & FMR_ECCM) ? &fsl_elbc_oob_lp_eccm1 : &fsl_elbc_oob_lp_eccm0; - mtd->ecclayout = chip->ecc.layout; - mtd->oobavail = chip->ecc.layout->oobavail; + chip->badblock_pattern = &largepage_memorybased; } } else { dev_err(ctrl->dev, @@ -752,8 +789,12 @@ static int fsl_elbc_chip_init(struct fsl_elbc_mtd *priv) chip->cmdfunc = fsl_elbc_cmdfunc; chip->waitfunc = fsl_elbc_wait; + chip->bbt_td = &bbt_main_descr; + chip->bbt_md = &bbt_mirror_descr; + /* set up nand options */ - chip->options = NAND_NO_READRDY | NAND_NO_AUTOINCR; + chip->options = NAND_NO_READRDY | NAND_NO_AUTOINCR | + NAND_USE_FLASH_BBT; chip->controller = &ctrl->controller; chip->priv = priv; @@ -795,8 +836,8 @@ static int fsl_elbc_chip_remove(struct fsl_elbc_mtd *priv) return 0; } -static int fsl_elbc_chip_probe(struct fsl_elbc_ctrl *ctrl, - struct device_node *node) +static int __devinit fsl_elbc_chip_probe(struct fsl_elbc_ctrl *ctrl, + struct device_node *node) { struct fsl_lbc_regs __iomem *lbc = ctrl->regs; struct fsl_elbc_mtd *priv; @@ -917,7 +958,7 @@ static int __devinit fsl_elbc_ctrl_init(struct fsl_elbc_ctrl *ctrl) return 0; } -static int __devexit fsl_elbc_ctrl_remove(struct of_device *ofdev) +static int fsl_elbc_ctrl_remove(struct of_device *ofdev) { struct fsl_elbc_ctrl *ctrl = dev_get_drvdata(&ofdev->dev); int i; @@ -1041,7 +1082,7 @@ static struct of_platform_driver fsl_elbc_ctrl_driver = { }, .match_table = fsl_elbc_match, .probe = fsl_elbc_ctrl_probe, - .remove = __devexit_p(fsl_elbc_ctrl_remove), + .remove = fsl_elbc_ctrl_remove, }; static int __init fsl_elbc_init(void) diff --git a/drivers/mtd/nand/h1910.c b/drivers/mtd/nand/h1910.c index 2d585d2..9e59de5 100644 --- a/drivers/mtd/nand/h1910.c +++ b/drivers/mtd/nand/h1910.c @@ -7,8 +7,6 @@ * Copyright (C) 2002 Marius Gröger (mag@sysgo.de) * Copyright (c) 2001 Thomas Gleixner (gleixner@autronix.de) * - * $Id: h1910.c,v 1.6 2005/11/07 11:14:30 gleixner Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index ba1bdf7..d1129ba 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -798,6 +798,87 @@ static int nand_read_page_swecc(struct mtd_info *mtd, struct nand_chip *chip, } /** + * nand_read_subpage - [REPLACABLE] software ecc based sub-page read function + * @mtd: mtd info structure + * @chip: nand chip info structure + * @dataofs offset of requested data within the page + * @readlen data length + * @buf: buffer to store read data + */ +static int nand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip, uint32_t data_offs, uint32_t readlen, uint8_t *bufpoi) +{ + int start_step, end_step, num_steps; + uint32_t *eccpos = chip->ecc.layout->eccpos; + uint8_t *p; + int data_col_addr, i, gaps = 0; + int datafrag_len, eccfrag_len, aligned_len, aligned_pos; + int busw = (chip->options & NAND_BUSWIDTH_16) ? 2 : 1; + + /* Column address wihin the page aligned to ECC size (256bytes). */ + start_step = data_offs / chip->ecc.size; + end_step = (data_offs + readlen - 1) / chip->ecc.size; + num_steps = end_step - start_step + 1; + + /* Data size aligned to ECC ecc.size*/ + datafrag_len = num_steps * chip->ecc.size; + eccfrag_len = num_steps * chip->ecc.bytes; + + data_col_addr = start_step * chip->ecc.size; + /* If we read not a page aligned data */ + if (data_col_addr != 0) + chip->cmdfunc(mtd, NAND_CMD_RNDOUT, data_col_addr, -1); + + p = bufpoi + data_col_addr; + chip->read_buf(mtd, p, datafrag_len); + + /* Calculate ECC */ + for (i = 0; i < eccfrag_len ; i += chip->ecc.bytes, p += chip->ecc.size) + chip->ecc.calculate(mtd, p, &chip->buffers->ecccalc[i]); + + /* The performance is faster if to position offsets + according to ecc.pos. Let make sure here that + there are no gaps in ecc positions */ + for (i = 0; i < eccfrag_len - 1; i++) { + if (eccpos[i + start_step * chip->ecc.bytes] + 1 != + eccpos[i + start_step * chip->ecc.bytes + 1]) { + gaps = 1; + break; + } + } + if (gaps) { + chip->cmdfunc(mtd, NAND_CMD_RNDOUT, mtd->writesize, -1); + chip->read_buf(mtd, chip->oob_poi, mtd->oobsize); + } else { + /* send the command to read the particular ecc bytes */ + /* take care about buswidth alignment in read_buf */ + aligned_pos = eccpos[start_step * chip->ecc.bytes] & ~(busw - 1); + aligned_len = eccfrag_len; + if (eccpos[start_step * chip->ecc.bytes] & (busw - 1)) + aligned_len++; + if (eccpos[(start_step + num_steps) * chip->ecc.bytes] & (busw - 1)) + aligned_len++; + + chip->cmdfunc(mtd, NAND_CMD_RNDOUT, mtd->writesize + aligned_pos, -1); + chip->read_buf(mtd, &chip->oob_poi[aligned_pos], aligned_len); + } + + for (i = 0; i < eccfrag_len; i++) + chip->buffers->ecccode[i] = chip->oob_poi[eccpos[i + start_step * chip->ecc.bytes]]; + + p = bufpoi + data_col_addr; + for (i = 0; i < eccfrag_len ; i += chip->ecc.bytes, p += chip->ecc.size) { + int stat; + + stat = chip->ecc.correct(mtd, p, &chip->buffers->ecccode[i], &chip->buffers->ecccalc[i]); + if (stat == -1) + mtd->ecc_stats.failed++; + else + mtd->ecc_stats.corrected += stat; + } + return 0; +} + +/** * nand_read_page_hwecc - [REPLACABLE] hardware ecc based page read function * @mtd: mtd info structure * @chip: nand chip info structure @@ -994,6 +1075,8 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from, /* Now read the page into the buffer */ if (unlikely(ops->mode == MTD_OOB_RAW)) ret = chip->ecc.read_page_raw(mtd, chip, bufpoi); + else if (!aligned && NAND_SUBPAGE_READ(chip) && !oob) + ret = chip->ecc.read_subpage(mtd, chip, col, bytes, bufpoi); else ret = chip->ecc.read_page(mtd, chip, bufpoi); if (ret < 0) @@ -1001,7 +1084,8 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from, /* Transfer not aligned data */ if (!aligned) { - chip->pagebuf = realpage; + if (!NAND_SUBPAGE_READ(chip) && !oob) + chip->pagebuf = realpage; memcpy(buf, chip->buffers->databuf + col, bytes); } @@ -2521,6 +2605,7 @@ int nand_scan_tail(struct mtd_info *mtd) chip->ecc.calculate = nand_calculate_ecc; chip->ecc.correct = nand_correct_data; chip->ecc.read_page = nand_read_page_swecc; + chip->ecc.read_subpage = nand_read_subpage; chip->ecc.write_page = nand_write_page_swecc; chip->ecc.read_oob = nand_read_oob_std; chip->ecc.write_oob = nand_write_oob_std; diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index 5e121ce..0b1c485 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -6,8 +6,6 @@ * * Copyright (C) 2004 Thomas Gleixner (tglx@linutronix.de) * - * $Id: nand_bbt.c,v 1.36 2005/11/07 11:14:30 gleixner Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. diff --git a/drivers/mtd/nand/nand_ecc.c b/drivers/mtd/nand/nand_ecc.c index 9003a135..918a806 100644 --- a/drivers/mtd/nand/nand_ecc.c +++ b/drivers/mtd/nand/nand_ecc.c @@ -9,8 +9,6 @@ * * Copyright (C) 2006 Thomas Gleixner <tglx@linutronix.de> * - * $Id: nand_ecc.c,v 1.15 2005/11/07 11:14:30 gleixner Exp $ - * * This file is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 or (at your option) any diff --git a/drivers/mtd/nand/nand_ids.c b/drivers/mtd/nand/nand_ids.c index a3e3ab0..69ee2c9 100644 --- a/drivers/mtd/nand/nand_ids.c +++ b/drivers/mtd/nand/nand_ids.c @@ -3,8 +3,6 @@ * * Copyright (C) 2002 Thomas Gleixner (tglx@linutronix.de) * - * $Id: nand_ids.c,v 1.16 2005/11/07 11:14:31 gleixner Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c index bb885d1..ecd70e2 100644 --- a/drivers/mtd/nand/nandsim.c +++ b/drivers/mtd/nand/nandsim.c @@ -21,8 +21,6 @@ * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA - * - * $Id: nandsim.c,v 1.8 2005/03/19 15:33:56 dedekind Exp $ */ #include <linux/init.h> @@ -39,6 +37,7 @@ #include <linux/delay.h> #include <linux/list.h> #include <linux/random.h> +#include <asm/div64.h> /* Default simulator parameters values */ #if !defined(CONFIG_NANDSIM_FIRST_ID_BYTE) || \ @@ -298,11 +297,11 @@ struct nandsim { /* NAND flash "geometry" */ struct nandsin_geometry { - uint32_t totsz; /* total flash size, bytes */ + uint64_t totsz; /* total flash size, bytes */ uint32_t secsz; /* flash sector (erase block) size, bytes */ uint pgsz; /* NAND flash page size, bytes */ uint oobsz; /* page OOB area size, bytes */ - uint32_t totszoob; /* total flash size including OOB, bytes */ + uint64_t totszoob; /* total flash size including OOB, bytes */ uint pgszoob; /* page size including OOB , bytes*/ uint secszoob; /* sector size including OOB, bytes */ uint pgnum; /* total number of pages */ @@ -459,6 +458,12 @@ static char *get_partition_name(int i) return kstrdup(buf, GFP_KERNEL); } +static u_int64_t divide(u_int64_t n, u_int32_t d) +{ + do_div(n, d); + return n; +} + /* * Initialize the nandsim structure. * @@ -469,8 +474,8 @@ static int init_nandsim(struct mtd_info *mtd) struct nand_chip *chip = (struct nand_chip *)mtd->priv; struct nandsim *ns = (struct nandsim *)(chip->priv); int i, ret = 0; - u_int32_t remains; - u_int32_t next_offset; + u_int64_t remains; + u_int64_t next_offset; if (NS_IS_INITIALIZED(ns)) { NS_ERR("init_nandsim: nandsim is already initialized\n"); @@ -487,8 +492,8 @@ static int init_nandsim(struct mtd_info *mtd) ns->geom.oobsz = mtd->oobsize; ns->geom.secsz = mtd->erasesize; ns->geom.pgszoob = ns->geom.pgsz + ns->geom.oobsz; - ns->geom.pgnum = ns->geom.totsz / ns->geom.pgsz; - ns->geom.totszoob = ns->geom.totsz + ns->geom.pgnum * ns->geom.oobsz; + ns->geom.pgnum = divide(ns->geom.totsz, ns->geom.pgsz); + ns->geom.totszoob = ns->geom.totsz + (uint64_t)ns->geom.pgnum * ns->geom.oobsz; ns->geom.secshift = ffs(ns->geom.secsz) - 1; ns->geom.pgshift = chip->page_shift; ns->geom.oobshift = ffs(ns->geom.oobsz) - 1; @@ -511,7 +516,7 @@ static int init_nandsim(struct mtd_info *mtd) } if (ns->options & OPT_SMALLPAGE) { - if (ns->geom.totsz < (32 << 20)) { + if (ns->geom.totsz <= (32 << 20)) { ns->geom.pgaddrbytes = 3; ns->geom.secaddrbytes = 2; } else { @@ -537,15 +542,16 @@ static int init_nandsim(struct mtd_info *mtd) remains = ns->geom.totsz; next_offset = 0; for (i = 0; i < parts_num; ++i) { - unsigned long part = parts[i]; - if (!part || part > remains / ns->geom.secsz) { + u_int64_t part_sz = (u_int64_t)parts[i] * ns->geom.secsz; + + if (!part_sz || part_sz > remains) { NS_ERR("bad partition size.\n"); ret = -EINVAL; goto error; } ns->partitions[i].name = get_partition_name(i); ns->partitions[i].offset = next_offset; - ns->partitions[i].size = part * ns->geom.secsz; + ns->partitions[i].size = part_sz; next_offset += ns->partitions[i].size; remains -= ns->partitions[i].size; } @@ -573,7 +579,7 @@ static int init_nandsim(struct mtd_info *mtd) if (ns->busw == 16) NS_WARN("16-bit flashes support wasn't tested\n"); - printk("flash size: %u MiB\n", ns->geom.totsz >> 20); + printk("flash size: %llu MiB\n", ns->geom.totsz >> 20); printk("page size: %u bytes\n", ns->geom.pgsz); printk("OOB area size: %u bytes\n", ns->geom.oobsz); printk("sector size: %u KiB\n", ns->geom.secsz >> 10); @@ -583,7 +589,7 @@ static int init_nandsim(struct mtd_info *mtd) printk("bits in sector size: %u\n", ns->geom.secshift); printk("bits in page size: %u\n", ns->geom.pgshift); printk("bits in OOB size: %u\n", ns->geom.oobshift); - printk("flash size with OOB: %u KiB\n", ns->geom.totszoob >> 10); + printk("flash size with OOB: %llu KiB\n", ns->geom.totszoob >> 10); printk("page address bytes: %u\n", ns->geom.pgaddrbytes); printk("sector address bytes: %u\n", ns->geom.secaddrbytes); printk("options: %#x\n", ns->options); @@ -825,7 +831,7 @@ static int setup_wear_reporting(struct mtd_info *mtd) if (!rptwear) return 0; - wear_eb_count = mtd->size / mtd->erasesize; + wear_eb_count = divide(mtd->size, mtd->erasesize); mem = wear_eb_count * sizeof(unsigned long); if (mem / sizeof(unsigned long) != wear_eb_count) { NS_ERR("Too many erase blocks for wear reporting\n"); @@ -2013,7 +2019,7 @@ static int __init ns_init_module(void) } if (overridesize) { - u_int32_t new_size = nsmtd->erasesize << overridesize; + u_int64_t new_size = (u_int64_t)nsmtd->erasesize << overridesize; if (new_size >> overridesize != nsmtd->erasesize) { NS_ERR("overridesize is too big\n"); goto err_exit; @@ -2021,7 +2027,8 @@ static int __init ns_init_module(void) /* N.B. This relies on nand_scan not doing anything with the size before we change it */ nsmtd->size = new_size; chip->chipsize = new_size; - chip->chip_shift = ffs(new_size) - 1; + chip->chip_shift = ffs(nsmtd->erasesize) + overridesize - 1; + chip->pagemask = (chip->chipsize >> chip->page_shift) - 1; } if ((retval = setup_wear_reporting(nsmtd)) != 0) diff --git a/drivers/mtd/nand/ppchameleonevb.c b/drivers/mtd/nand/ppchameleonevb.c index 082073a..cc86584 100644 --- a/drivers/mtd/nand/ppchameleonevb.c +++ b/drivers/mtd/nand/ppchameleonevb.c @@ -6,8 +6,6 @@ * Derived from drivers/mtd/nand/edb7312.c * * - * $Id: ppchameleonevb.c,v 1.7 2005/11/07 11:14:31 gleixner Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. diff --git a/drivers/mtd/nand/rtc_from4.c b/drivers/mtd/nand/rtc_from4.c index 26f8821..a033c4c 100644 --- a/drivers/mtd/nand/rtc_from4.c +++ b/drivers/mtd/nand/rtc_from4.c @@ -6,8 +6,6 @@ * Derived from drivers/mtd/nand/spia.c * Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com) * - * $Id: rtc_from4.c,v 1.10 2005/11/07 11:14:31 gleixner Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c index b34a460..556139e 100644 --- a/drivers/mtd/nand/s3c2410.c +++ b/drivers/mtd/nand/s3c2410.c @@ -1,26 +1,10 @@ /* linux/drivers/mtd/nand/s3c2410.c * - * Copyright (c) 2004,2005 Simtec Electronics - * http://www.simtec.co.uk/products/SWLINUX/ + * Copyright © 2004-2008 Simtec Electronics + * http://armlinux.simtec.co.uk/ * Ben Dooks <ben@simtec.co.uk> * - * Samsung S3C2410/S3C240 NAND driver - * - * Changelog: - * 21-Sep-2004 BJD Initial version - * 23-Sep-2004 BJD Multiple device support - * 28-Sep-2004 BJD Fixed ECC placement for Hardware mode - * 12-Oct-2004 BJD Fixed errors in use of platform data - * 18-Feb-2005 BJD Fix sparse errors - * 14-Mar-2005 BJD Applied tglx's code reduction patch - * 02-May-2005 BJD Fixed s3c2440 support - * 02-May-2005 BJD Reduced hwcontrol decode - * 20-Jun-2005 BJD Updated s3c2440 support, fixed timing bug - * 08-Jul-2005 BJD Fix OOPS when no platform data supplied - * 20-Oct-2005 BJD Fix timing calculation bug - * 14-Jan-2006 BJD Allow clock to be stopped when idle - * - * $Id: s3c2410.c,v 1.23 2006/04/01 18:06:29 bjd Exp $ + * Samsung S3C2410/S3C2440/S3C2412 NAND driver * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -52,6 +36,7 @@ #include <linux/err.h> #include <linux/slab.h> #include <linux/clk.h> +#include <linux/cpufreq.h> #include <linux/mtd/mtd.h> #include <linux/mtd/nand.h> @@ -120,8 +105,13 @@ struct s3c2410_nand_info { int sel_bit; int mtd_count; unsigned long save_sel; + unsigned long clk_rate; enum s3c_cpu_type cpu_type; + +#ifdef CONFIG_CPU_FREQ + struct notifier_block freq_transition; +#endif }; /* conversion functions */ @@ -179,17 +169,18 @@ static int s3c_nand_calc_rate(int wanted, unsigned long clk, int max) /* controller setup */ -static int s3c2410_nand_inithw(struct s3c2410_nand_info *info, - struct platform_device *pdev) +static int s3c2410_nand_setrate(struct s3c2410_nand_info *info) { - struct s3c2410_platform_nand *plat = to_nand_plat(pdev); - unsigned long clkrate = clk_get_rate(info->clk); + struct s3c2410_platform_nand *plat = info->platform; int tacls_max = (info->cpu_type == TYPE_S3C2412) ? 8 : 4; int tacls, twrph0, twrph1; - unsigned long cfg = 0; + unsigned long clkrate = clk_get_rate(info->clk); + unsigned long set, cfg, mask; + unsigned long flags; /* calculate the timing information for the controller */ + info->clk_rate = clkrate; clkrate /= 1000; /* turn clock into kHz for ease of use */ if (plat != NULL) { @@ -211,28 +202,69 @@ static int s3c2410_nand_inithw(struct s3c2410_nand_info *info, dev_info(info->device, "Tacls=%d, %dns Twrph0=%d %dns, Twrph1=%d %dns\n", tacls, to_ns(tacls, clkrate), twrph0, to_ns(twrph0, clkrate), twrph1, to_ns(twrph1, clkrate)); + switch (info->cpu_type) { + case TYPE_S3C2410: + mask = (S3C2410_NFCONF_TACLS(3) | + S3C2410_NFCONF_TWRPH0(7) | + S3C2410_NFCONF_TWRPH1(7)); + set = S3C2410_NFCONF_EN; + set |= S3C2410_NFCONF_TACLS(tacls - 1); + set |= S3C2410_NFCONF_TWRPH0(twrph0 - 1); + set |= S3C2410_NFCONF_TWRPH1(twrph1 - 1); + break; + + case TYPE_S3C2440: + case TYPE_S3C2412: + mask = (S3C2410_NFCONF_TACLS(tacls_max - 1) | + S3C2410_NFCONF_TWRPH0(7) | + S3C2410_NFCONF_TWRPH1(7)); + + set = S3C2440_NFCONF_TACLS(tacls - 1); + set |= S3C2440_NFCONF_TWRPH0(twrph0 - 1); + set |= S3C2440_NFCONF_TWRPH1(twrph1 - 1); + break; + + default: + /* keep compiler happy */ + mask = 0; + set = 0; + BUG(); + } + + dev_dbg(info->device, "NF_CONF is 0x%lx\n", cfg); + + local_irq_save(flags); + + cfg = readl(info->regs + S3C2410_NFCONF); + cfg &= ~mask; + cfg |= set; + writel(cfg, info->regs + S3C2410_NFCONF); + + local_irq_restore(flags); + + return 0; +} + +static int s3c2410_nand_inithw(struct s3c2410_nand_info *info) +{ + int ret; + + ret = s3c2410_nand_setrate(info); + if (ret < 0) + return ret; + switch (info->cpu_type) { case TYPE_S3C2410: - cfg = S3C2410_NFCONF_EN; - cfg |= S3C2410_NFCONF_TACLS(tacls - 1); - cfg |= S3C2410_NFCONF_TWRPH0(twrph0 - 1); - cfg |= S3C2410_NFCONF_TWRPH1(twrph1 - 1); + default: break; case TYPE_S3C2440: case TYPE_S3C2412: - cfg = S3C2440_NFCONF_TACLS(tacls - 1); - cfg |= S3C2440_NFCONF_TWRPH0(twrph0 - 1); - cfg |= S3C2440_NFCONF_TWRPH1(twrph1 - 1); - /* enable the controller and de-assert nFCE */ writel(S3C2440_NFCONT_ENABLE, info->regs + S3C2440_NFCONT); } - dev_dbg(info->device, "NF_CONF is 0x%lx\n", cfg); - - writel(cfg, info->regs + S3C2410_NFCONF); return 0; } @@ -513,6 +545,52 @@ static void s3c2440_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int writesl(info->regs + S3C2440_NFDATA, buf, len / 4); } +/* cpufreq driver support */ + +#ifdef CONFIG_CPU_FREQ + +static int s3c2410_nand_cpufreq_transition(struct notifier_block *nb, + unsigned long val, void *data) +{ + struct s3c2410_nand_info *info; + unsigned long newclk; + + info = container_of(nb, struct s3c2410_nand_info, freq_transition); + newclk = clk_get_rate(info->clk); + + if ((val == CPUFREQ_POSTCHANGE && newclk < info->clk_rate) || + (val == CPUFREQ_PRECHANGE && newclk > info->clk_rate)) { + s3c2410_nand_setrate(info); + } + + return 0; +} + +static inline int s3c2410_nand_cpufreq_register(struct s3c2410_nand_info *info) +{ + info->freq_transition.notifier_call = s3c2410_nand_cpufreq_transition; + + return cpufreq_register_notifier(&info->freq_transition, + CPUFREQ_TRANSITION_NOTIFIER); +} + +static inline void s3c2410_nand_cpufreq_deregister(struct s3c2410_nand_info *info) +{ + cpufreq_unregister_notifier(&info->freq_transition, + CPUFREQ_TRANSITION_NOTIFIER); +} + +#else +static inline int s3c2410_nand_cpufreq_register(struct s3c2410_nand_info *info) +{ + return 0; +} + +static inline void s3c2410_nand_cpufreq_deregister(struct s3c2410_nand_info *info) +{ +} +#endif + /* device management functions */ static int s3c2410_nand_remove(struct platform_device *pdev) @@ -524,9 +602,10 @@ static int s3c2410_nand_remove(struct platform_device *pdev) if (info == NULL) return 0; - /* first thing we need to do is release all our mtds - * and their partitions, then go through freeing the - * resources used + s3c2410_nand_cpufreq_deregister(info); + + /* Release all our mtds and their partitions, then go through + * freeing the resources used */ if (info->mtds != NULL) { @@ -691,7 +770,8 @@ static void s3c2410_nand_update_chip(struct s3c2410_nand_info *info, { struct nand_chip *chip = &nmtd->chip; - printk("%s: chip %p: %d\n", __func__, chip, chip->page_shift); + dev_dbg(info->device, "chip %p => page shift %d\n", + chip, chip->page_shift); if (hardware_ecc) { /* change the behaviour depending on wether we are using @@ -784,7 +864,7 @@ static int s3c24xx_nand_probe(struct platform_device *pdev, /* initialise the hardware */ - err = s3c2410_nand_inithw(info, pdev); + err = s3c2410_nand_inithw(info); if (err != 0) goto exit_error; @@ -827,6 +907,12 @@ static int s3c24xx_nand_probe(struct platform_device *pdev, sets++; } + err = s3c2410_nand_cpufreq_register(info); + if (err < 0) { + dev_err(&pdev->dev, "failed to init cpufreq support\n"); + goto exit_error; + } + if (allow_clk_stop(info)) { dev_info(&pdev->dev, "clock idle support enabled\n"); clk_disable(info->clk); @@ -874,7 +960,7 @@ static int s3c24xx_nand_resume(struct platform_device *dev) if (info) { clk_enable(info->clk); - s3c2410_nand_inithw(info, dev); + s3c2410_nand_inithw(info); /* Restore the state of the nFCE line. */ diff --git a/drivers/mtd/nand/sharpsl.c b/drivers/mtd/nand/sharpsl.c index 033f880..6dba2fb 100644 --- a/drivers/mtd/nand/sharpsl.c +++ b/drivers/mtd/nand/sharpsl.c @@ -3,8 +3,6 @@ * * Copyright (C) 2004 Richard Purdie * - * $Id: sharpsl.c,v 1.7 2005/11/07 11:14:31 gleixner Exp $ - * * Based on Sharp's NAND driver sharp_sl.c * * This program is free software; you can redistribute it and/or modify diff --git a/drivers/mtd/nand/spia.c b/drivers/mtd/nand/spia.c index 1f6d429..0cc6d0a 100644 --- a/drivers/mtd/nand/spia.c +++ b/drivers/mtd/nand/spia.c @@ -8,8 +8,6 @@ * to controllines (due to change in nand.c) * page_cache added * - * $Id: spia.c,v 1.25 2005/11/07 11:14:31 gleixner Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. diff --git a/drivers/mtd/nand/toto.c b/drivers/mtd/nand/toto.c index f9e2d4a..bbf492e 100644 --- a/drivers/mtd/nand/toto.c +++ b/drivers/mtd/nand/toto.c @@ -14,8 +14,6 @@ * Overview: * This is a device driver for the NAND flash device found on the * TI fido board. It supports 32MiB and 64MiB cards - * - * $Id: toto.c,v 1.5 2005/11/07 11:14:31 gleixner Exp $ */ #include <linux/slab.h> diff --git a/drivers/mtd/nand/ts7250.c b/drivers/mtd/nand/ts7250.c index f400810..807a727 100644 --- a/drivers/mtd/nand/ts7250.c +++ b/drivers/mtd/nand/ts7250.c @@ -9,8 +9,6 @@ * Derived from drivers/mtd/nand/autcpu12.c * Copyright (c) 2001 Thomas Gleixner (gleixner@autronix.de) * - * $Id: ts7250.c,v 1.4 2004/12/30 22:02:07 joff Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. diff --git a/drivers/mtd/nftlcore.c b/drivers/mtd/nftlcore.c index 0c9ce19..320b929 100644 --- a/drivers/mtd/nftlcore.c +++ b/drivers/mtd/nftlcore.c @@ -1,7 +1,6 @@ /* Linux driver for NAND Flash Translation Layer */ /* (c) 1999 Machine Vision Holdings, Inc. */ /* Author: David Woodhouse <dwmw2@infradead.org> */ -/* $Id: nftlcore.c,v 1.98 2005/11/07 11:14:21 gleixner Exp $ */ /* The contents of this file are distributed under the GNU General @@ -803,12 +802,8 @@ static struct mtd_blktrans_ops nftl_tr = { .owner = THIS_MODULE, }; -extern char nftlmountrev[]; - static int __init init_nftl(void) { - printk(KERN_INFO "NFTL driver: nftlcore.c $Revision: 1.98 $, nftlmount.c %s\n", nftlmountrev); - return register_mtd_blktrans(&nftl_tr); } diff --git a/drivers/mtd/nftlmount.c b/drivers/mtd/nftlmount.c index 345e6ef..ccc4f20 100644 --- a/drivers/mtd/nftlmount.c +++ b/drivers/mtd/nftlmount.c @@ -4,8 +4,6 @@ * Author: Fabrice Bellard (fabrice.bellard@netgem.com) * Copyright (C) 2000 Netgem S.A. * - * $Id: nftlmount.c,v 1.41 2005/11/07 11:14:21 gleixner Exp $ - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or @@ -31,8 +29,6 @@ #define SECTORSIZE 512 -char nftlmountrev[]="$Revision: 1.41 $"; - /* find_boot_record: Find the NFTL Media Header and its Spare copy which contains the * various device information of the NFTL partition and Bad Unit Table. Update * the ReplUnitTable[] table accroding to the Bad Unit Table. ReplUnitTable[] diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c index 5d7965f..926cf3a 100644 --- a/drivers/mtd/onenand/onenand_base.c +++ b/drivers/mtd/onenand/onenand_base.c @@ -325,28 +325,11 @@ static int onenand_wait(struct mtd_info *mtd, int state) ctrl = this->read_word(this->base + ONENAND_REG_CTRL_STATUS); - if (ctrl & ONENAND_CTRL_ERROR) { - printk(KERN_ERR "onenand_wait: controller error = 0x%04x\n", ctrl); - if (ctrl & ONENAND_CTRL_LOCK) - printk(KERN_ERR "onenand_wait: it's locked error.\n"); - if (state == FL_READING) { - /* - * A power loss while writing can result in a page - * becoming unreadable. When the device is mounted - * again, reading that page gives controller errors. - * Upper level software like JFFS2 treat -EIO as fatal, - * refusing to mount at all. That means it is necessary - * to treat the error as an ECC error to allow recovery. - * Note that typically in this case, the eraseblock can - * still be erased and rewritten i.e. it has not become - * a bad block. - */ - mtd->ecc_stats.failed++; - return -EBADMSG; - } - return -EIO; - } - + /* + * In the Spec. it checks the controller status first + * However if you get the correct information in case of + * power off recovery (POR) test, it should read ECC status first + */ if (interrupt & ONENAND_INT_READ) { int ecc = this->read_word(this->base + ONENAND_REG_ECC_STATUS); if (ecc) { @@ -364,6 +347,15 @@ static int onenand_wait(struct mtd_info *mtd, int state) return -EIO; } + /* If there's controller error, it's a real error */ + if (ctrl & ONENAND_CTRL_ERROR) { + printk(KERN_ERR "onenand_wait: controller error = 0x%04x\n", + ctrl); + if (ctrl & ONENAND_CTRL_LOCK) + printk(KERN_ERR "onenand_wait: it's locked error.\n"); + return -EIO; + } + return 0; } @@ -1135,22 +1127,26 @@ static int onenand_bbt_wait(struct mtd_info *mtd, int state) interrupt = this->read_word(this->base + ONENAND_REG_INTERRUPT); ctrl = this->read_word(this->base + ONENAND_REG_CTRL_STATUS); - /* Initial bad block case: 0x2400 or 0x0400 */ - if (ctrl & ONENAND_CTRL_ERROR) { - printk(KERN_DEBUG "onenand_bbt_wait: controller error = 0x%04x\n", ctrl); - return ONENAND_BBT_READ_ERROR; - } - if (interrupt & ONENAND_INT_READ) { int ecc = this->read_word(this->base + ONENAND_REG_ECC_STATUS); - if (ecc & ONENAND_ECC_2BIT_ALL) + if (ecc & ONENAND_ECC_2BIT_ALL) { + printk(KERN_INFO "onenand_bbt_wait: ecc error = 0x%04x" + ", controller error 0x%04x\n", ecc, ctrl); return ONENAND_BBT_READ_ERROR; + } } else { printk(KERN_ERR "onenand_bbt_wait: read timeout!" "ctrl=0x%04x intr=0x%04x\n", ctrl, interrupt); return ONENAND_BBT_READ_FATAL_ERROR; } + /* Initial bad block case: 0x2400 or 0x0400 */ + if (ctrl & ONENAND_CTRL_ERROR) { + printk(KERN_DEBUG "onenand_bbt_wait: " + "controller error = 0x%04x\n", ctrl); + return ONENAND_BBT_READ_ERROR; + } + return 0; } diff --git a/drivers/mtd/redboot.c b/drivers/mtd/redboot.c index c5030f9..2d600a1 100644 --- a/drivers/mtd/redboot.c +++ b/drivers/mtd/redboot.c @@ -1,6 +1,4 @@ /* - * $Id: redboot.c,v 1.21 2006/03/30 18:34:37 bjd Exp $ - * * Parse RedBoot-style Flash Image System (FIS) tables and * produce a Linux partition array to match. */ diff --git a/drivers/mtd/rfd_ftl.c b/drivers/mtd/rfd_ftl.c index c84e454..e538c0a 100644 --- a/drivers/mtd/rfd_ftl.c +++ b/drivers/mtd/rfd_ftl.c @@ -3,8 +3,6 @@ * * Copyright (C) 2005 Sean Young <sean@mess.org> * - * $Id: rfd_ftl.c,v 1.8 2006/01/15 12:51:44 sean Exp $ - * * This type of flash translation layer (FTL) is used by the Embedded BIOS * by General Software. It is known as the Resident Flash Disk (RFD), see: * diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c index 961416a..c7630a2 100644 --- a/drivers/mtd/ubi/build.c +++ b/drivers/mtd/ubi/build.c @@ -51,14 +51,13 @@ * @name: MTD device name or number string * @vid_hdr_offs: VID header offset */ -struct mtd_dev_param -{ +struct mtd_dev_param { char name[MTD_PARAM_LEN_MAX]; int vid_hdr_offs; }; /* Numbers of elements set in the @mtd_dev_param array */ -static int mtd_devs = 0; +static int mtd_devs; /* MTD devices specification parameters */ static struct mtd_dev_param mtd_dev_param[UBI_MAX_DEVICES]; @@ -160,8 +159,7 @@ void ubi_put_device(struct ubi_device *ubi) } /** - * ubi_get_by_major - get UBI device description object by character device - * major number. + * ubi_get_by_major - get UBI device by character device major number. * @major: major number * * This function is similar to 'ubi_get_device()', but it searches the device @@ -355,15 +353,34 @@ static void kill_volumes(struct ubi_device *ubi) } /** + * free_user_volumes - free all user volumes. + * @ubi: UBI device description object + * + * Normally the volumes are freed at the release function of the volume device + * objects. However, on error paths the volumes have to be freed before the + * device objects have been initialized. + */ +static void free_user_volumes(struct ubi_device *ubi) +{ + int i; + + for (i = 0; i < ubi->vtbl_slots; i++) + if (ubi->volumes[i]) { + kfree(ubi->volumes[i]->eba_tbl); + kfree(ubi->volumes[i]); + } +} + +/** * uif_init - initialize user interfaces for an UBI device. * @ubi: UBI device description object * * This function returns zero in case of success and a negative error code in - * case of failure. + * case of failure. Note, this function destroys all volumes if it failes. */ static int uif_init(struct ubi_device *ubi) { - int i, err; + int i, err, do_free = 0; dev_t dev; sprintf(ubi->ubi_name, UBI_NAME_STR "%d", ubi->ubi_num); @@ -384,7 +401,7 @@ static int uif_init(struct ubi_device *ubi) ubi_assert(MINOR(dev) == 0); cdev_init(&ubi->cdev, &ubi_cdev_operations); - dbg_msg("%s major is %u", ubi->ubi_name, MAJOR(dev)); + dbg_gen("%s major is %u", ubi->ubi_name, MAJOR(dev)); ubi->cdev.owner = THIS_MODULE; err = cdev_add(&ubi->cdev, dev, 1); @@ -410,10 +427,13 @@ static int uif_init(struct ubi_device *ubi) out_volumes: kill_volumes(ubi); + do_free = 0; out_sysfs: ubi_sysfs_close(ubi); cdev_del(&ubi->cdev); out_unreg: + if (do_free) + free_user_volumes(ubi); unregister_chrdev_region(ubi->cdev.dev, ubi->vtbl_slots + 1); ubi_err("cannot initialize UBI %s, error %d", ubi->ubi_name, err); return err; @@ -422,6 +442,10 @@ out_unreg: /** * uif_close - close user interfaces for an UBI device. * @ubi: UBI device description object + * + * Note, since this function un-registers UBI volume device objects (@vol->dev), + * the memory allocated voe the volumes is freed as well (in the release + * function). */ static void uif_close(struct ubi_device *ubi) { @@ -432,6 +456,21 @@ static void uif_close(struct ubi_device *ubi) } /** + * free_internal_volumes - free internal volumes. + * @ubi: UBI device description object + */ +static void free_internal_volumes(struct ubi_device *ubi) +{ + int i; + + for (i = ubi->vtbl_slots; + i < ubi->vtbl_slots + UBI_INT_VOL_COUNT; i++) { + kfree(ubi->volumes[i]->eba_tbl); + kfree(ubi->volumes[i]); + } +} + +/** * attach_by_scanning - attach an MTD device using scanning method. * @ubi: UBI device descriptor * @@ -475,6 +514,7 @@ static int attach_by_scanning(struct ubi_device *ubi) out_wl: ubi_wl_close(ubi); out_vtbl: + free_internal_volumes(ubi); vfree(ubi->vtbl); out_si: ubi_scan_destroy_si(si); @@ -482,7 +522,7 @@ out_si: } /** - * io_init - initialize I/O unit for a given UBI device. + * io_init - initialize I/O sub-system for a given UBI device. * @ubi: UBI device description object * * If @ubi->vid_hdr_offset or @ubi->leb_start is zero, default offsets are @@ -530,7 +570,11 @@ static int io_init(struct ubi_device *ubi) ubi->min_io_size = ubi->mtd->writesize; ubi->hdrs_min_io_size = ubi->mtd->writesize >> ubi->mtd->subpage_sft; - /* Make sure minimal I/O unit is power of 2 */ + /* + * Make sure minimal I/O unit is power of 2. Note, there is no + * fundamental reason for this assumption. It is just an optimization + * which allows us to avoid costly division operations. + */ if (!is_power_of_2(ubi->min_io_size)) { ubi_err("min. I/O unit (%d) is not power of 2", ubi->min_io_size); @@ -581,7 +625,7 @@ static int io_init(struct ubi_device *ubi) if (ubi->vid_hdr_offset < UBI_EC_HDR_SIZE || ubi->leb_start < ubi->vid_hdr_offset + UBI_VID_HDR_SIZE || ubi->leb_start > ubi->peb_size - UBI_VID_HDR_SIZE || - ubi->leb_start % ubi->min_io_size) { + ubi->leb_start & (ubi->min_io_size - 1)) { ubi_err("bad VID header (%d) or data offsets (%d)", ubi->vid_hdr_offset, ubi->leb_start); return -EINVAL; @@ -646,7 +690,7 @@ static int autoresize(struct ubi_device *ubi, int vol_id) /* * Clear the auto-resize flag in the volume in-memory copy of the - * volume table, and 'ubi_resize_volume()' will propogate this change + * volume table, and 'ubi_resize_volume()' will propagate this change * to the flash. */ ubi->vtbl[vol_id].flags &= ~UBI_VTBL_AUTORESIZE_FLG; @@ -655,7 +699,7 @@ static int autoresize(struct ubi_device *ubi, int vol_id) struct ubi_vtbl_record vtbl_rec; /* - * No avalilable PEBs to re-size the volume, clear the flag on + * No available PEBs to re-size the volume, clear the flag on * flash and exit. */ memcpy(&vtbl_rec, &ubi->vtbl[vol_id], @@ -682,13 +726,13 @@ static int autoresize(struct ubi_device *ubi, int vol_id) /** * ubi_attach_mtd_dev - attach an MTD device. - * @mtd_dev: MTD device description object + * @mtd: MTD device description object * @ubi_num: number to assign to the new UBI device * @vid_hdr_offset: VID header offset * * This function attaches MTD device @mtd_dev to UBI and assign @ubi_num number * to the newly created UBI device, unless @ubi_num is %UBI_DEV_NUM_AUTO, in - * which case this function finds a vacant device nubert and assings it + * which case this function finds a vacant device number and assigns it * automatically. Returns the new UBI device number in case of success and a * negative error code in case of failure. * @@ -698,7 +742,7 @@ static int autoresize(struct ubi_device *ubi, int vol_id) int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num, int vid_hdr_offset) { struct ubi_device *ubi; - int i, err; + int i, err, do_free = 1; /* * Check if we already have the same MTD device attached. @@ -735,7 +779,8 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num, int vid_hdr_offset) if (!ubi_devices[ubi_num]) break; if (ubi_num == UBI_MAX_DEVICES) { - dbg_err("only %d UBI devices may be created", UBI_MAX_DEVICES); + dbg_err("only %d UBI devices may be created", + UBI_MAX_DEVICES); return -ENFILE; } } else { @@ -760,6 +805,7 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num, int vid_hdr_offset) mutex_init(&ubi->buf_mutex); mutex_init(&ubi->ckvol_mutex); + mutex_init(&ubi->mult_mutex); mutex_init(&ubi->volumes_mutex); spin_lock_init(&ubi->volumes_lock); @@ -798,7 +844,7 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num, int vid_hdr_offset) err = uif_init(ubi); if (err) - goto out_detach; + goto out_nofree; ubi->bgt_thread = kthread_create(ubi_thread, ubi, ubi->bgt_name); if (IS_ERR(ubi->bgt_thread)) { @@ -824,20 +870,22 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num, int vid_hdr_offset) ubi->beb_rsvd_pebs); ubi_msg("max/mean erase counter: %d/%d", ubi->max_ec, ubi->mean_ec); - /* Enable the background thread */ - if (!DBG_DISABLE_BGT) { + if (!DBG_DISABLE_BGT) ubi->thread_enabled = 1; - wake_up_process(ubi->bgt_thread); - } + wake_up_process(ubi->bgt_thread); ubi_devices[ubi_num] = ubi; return ubi_num; out_uif: uif_close(ubi); +out_nofree: + do_free = 0; out_detach: - ubi_eba_close(ubi); ubi_wl_close(ubi); + if (do_free) + free_user_volumes(ubi); + free_internal_volumes(ubi); vfree(ubi->vtbl); out_free: vfree(ubi->peb_buf1); @@ -899,8 +947,8 @@ int ubi_detach_mtd_dev(int ubi_num, int anyway) kthread_stop(ubi->bgt_thread); uif_close(ubi); - ubi_eba_close(ubi); ubi_wl_close(ubi); + free_internal_volumes(ubi); vfree(ubi->vtbl); put_mtd_device(ubi->mtd); vfree(ubi->peb_buf1); @@ -1044,8 +1092,7 @@ static void __exit ubi_exit(void) module_exit(ubi_exit); /** - * bytes_str_to_int - convert a string representing number of bytes to an - * integer. + * bytes_str_to_int - convert a number of bytes string into an integer. * @str: the string to convert * * This function returns positive resulting integer in case of success and a diff --git a/drivers/mtd/ubi/cdev.c b/drivers/mtd/ubi/cdev.c index 89193ba..03c759b 100644 --- a/drivers/mtd/ubi/cdev.c +++ b/drivers/mtd/ubi/cdev.c @@ -39,9 +39,9 @@ #include <linux/stat.h> #include <linux/ioctl.h> #include <linux/capability.h> +#include <linux/uaccess.h> #include <linux/smp_lock.h> #include <mtd/ubi-user.h> -#include <asm/uaccess.h> #include <asm/div64.h> #include "ubi.h" @@ -116,7 +116,7 @@ static int vol_cdev_open(struct inode *inode, struct file *file) else mode = UBI_READONLY; - dbg_msg("open volume %d, mode %d", vol_id, mode); + dbg_gen("open volume %d, mode %d", vol_id, mode); desc = ubi_open_volume(ubi_num, vol_id, mode); unlock_kernel(); @@ -132,7 +132,7 @@ static int vol_cdev_release(struct inode *inode, struct file *file) struct ubi_volume_desc *desc = file->private_data; struct ubi_volume *vol = desc->vol; - dbg_msg("release volume %d, mode %d", vol->vol_id, desc->mode); + dbg_gen("release volume %d, mode %d", vol->vol_id, desc->mode); if (vol->updating) { ubi_warn("update of volume %d not finished, volume is damaged", @@ -141,7 +141,7 @@ static int vol_cdev_release(struct inode *inode, struct file *file) vol->updating = 0; vfree(vol->upd_buf); } else if (vol->changing_leb) { - dbg_msg("only %lld of %lld bytes received for atomic LEB change" + dbg_gen("only %lld of %lld bytes received for atomic LEB change" " for volume %d:%d, cancel", vol->upd_received, vol->upd_bytes, vol->ubi->ubi_num, vol->vol_id); vol->changing_leb = 0; @@ -183,7 +183,7 @@ static loff_t vol_cdev_llseek(struct file *file, loff_t offset, int origin) return -EINVAL; } - dbg_msg("seek volume %d, offset %lld, origin %d, new offset %lld", + dbg_gen("seek volume %d, offset %lld, origin %d, new offset %lld", vol->vol_id, offset, origin, new_offset); file->f_pos = new_offset; @@ -201,7 +201,7 @@ static ssize_t vol_cdev_read(struct file *file, __user char *buf, size_t count, void *tbuf; uint64_t tmp; - dbg_msg("read %zd bytes from offset %lld of volume %d", + dbg_gen("read %zd bytes from offset %lld of volume %d", count, *offp, vol->vol_id); if (vol->updating) { @@ -216,7 +216,7 @@ static ssize_t vol_cdev_read(struct file *file, __user char *buf, size_t count, return 0; if (vol->corrupted) - dbg_msg("read from corrupted volume %d", vol->vol_id); + dbg_gen("read from corrupted volume %d", vol->vol_id); if (*offp + count > vol->used_bytes) count_save = count = vol->used_bytes - *offp; @@ -285,7 +285,7 @@ static ssize_t vol_cdev_direct_write(struct file *file, const char __user *buf, char *tbuf; uint64_t tmp; - dbg_msg("requested: write %zd bytes to offset %lld of volume %u", + dbg_gen("requested: write %zd bytes to offset %lld of volume %u", count, *offp, vol->vol_id); if (vol->vol_type == UBI_STATIC_VOLUME) @@ -295,7 +295,7 @@ static ssize_t vol_cdev_direct_write(struct file *file, const char __user *buf, off = do_div(tmp, vol->usable_leb_size); lnum = tmp; - if (off % ubi->min_io_size) { + if (off & (ubi->min_io_size - 1)) { dbg_err("unaligned position"); return -EINVAL; } @@ -304,7 +304,7 @@ static ssize_t vol_cdev_direct_write(struct file *file, const char __user *buf, count_save = count = vol->used_bytes - *offp; /* We can write only in fractions of the minimum I/O unit */ - if (count % ubi->min_io_size) { + if (count & (ubi->min_io_size - 1)) { dbg_err("unaligned write length"); return -EINVAL; } @@ -352,7 +352,7 @@ static ssize_t vol_cdev_direct_write(struct file *file, const char __user *buf, } #else -#define vol_cdev_direct_write(file, buf, count, offp) -EPERM +#define vol_cdev_direct_write(file, buf, count, offp) (-EPERM) #endif /* CONFIG_MTD_UBI_DEBUG_USERSPACE_IO */ static ssize_t vol_cdev_write(struct file *file, const char __user *buf, @@ -437,7 +437,8 @@ static int vol_cdev_ioctl(struct inode *inode, struct file *file, break; } - rsvd_bytes = vol->reserved_pebs * (ubi->leb_size-vol->data_pad); + rsvd_bytes = (long long)vol->reserved_pebs * + ubi->leb_size-vol->data_pad; if (bytes < 0 || bytes > rsvd_bytes) { err = -EINVAL; break; @@ -513,7 +514,7 @@ static int vol_cdev_ioctl(struct inode *inode, struct file *file, break; } - dbg_msg("erase LEB %d:%d", vol->vol_id, lnum); + dbg_gen("erase LEB %d:%d", vol->vol_id, lnum); err = ubi_eba_unmap_leb(ubi, vol, lnum); if (err) break; @@ -564,7 +565,7 @@ static int verify_mkvol_req(const struct ubi_device *ubi, if (req->alignment > ubi->leb_size) goto bad; - n = req->alignment % ubi->min_io_size; + n = req->alignment & (ubi->min_io_size - 1); if (req->alignment != 1 && n) goto bad; @@ -573,6 +574,10 @@ static int verify_mkvol_req(const struct ubi_device *ubi, goto bad; } + n = strnlen(req->name, req->name_len + 1); + if (n != req->name_len) + goto bad; + return 0; bad: @@ -600,6 +605,166 @@ static int verify_rsvol_req(const struct ubi_device *ubi, return 0; } +/** + * rename_volumes - rename UBI volumes. + * @ubi: UBI device description object + * @req: volumes re-name request + * + * This is a helper function for the volume re-name IOCTL which validates the + * the request, opens the volume and calls corresponding volumes management + * function. Returns zero in case of success and a negative error code in case + * of failure. + */ +static int rename_volumes(struct ubi_device *ubi, + struct ubi_rnvol_req *req) +{ + int i, n, err; + struct list_head rename_list; + struct ubi_rename_entry *re, *re1; + + if (req->count < 0 || req->count > UBI_MAX_RNVOL) + return -EINVAL; + + if (req->count == 0) + return 0; + + /* Validate volume IDs and names in the request */ + for (i = 0; i < req->count; i++) { + if (req->ents[i].vol_id < 0 || + req->ents[i].vol_id >= ubi->vtbl_slots) + return -EINVAL; + if (req->ents[i].name_len < 0) + return -EINVAL; + if (req->ents[i].name_len > UBI_VOL_NAME_MAX) + return -ENAMETOOLONG; + req->ents[i].name[req->ents[i].name_len] = '\0'; + n = strlen(req->ents[i].name); + if (n != req->ents[i].name_len) + err = -EINVAL; + } + + /* Make sure volume IDs and names are unique */ + for (i = 0; i < req->count - 1; i++) { + for (n = i + 1; n < req->count; n++) { + if (req->ents[i].vol_id == req->ents[n].vol_id) { + dbg_err("duplicated volume id %d", + req->ents[i].vol_id); + return -EINVAL; + } + if (!strcmp(req->ents[i].name, req->ents[n].name)) { + dbg_err("duplicated volume name \"%s\"", + req->ents[i].name); + return -EINVAL; + } + } + } + + /* Create the re-name list */ + INIT_LIST_HEAD(&rename_list); + for (i = 0; i < req->count; i++) { + int vol_id = req->ents[i].vol_id; + int name_len = req->ents[i].name_len; + const char *name = req->ents[i].name; + + re = kzalloc(sizeof(struct ubi_rename_entry), GFP_KERNEL); + if (!re) { + err = -ENOMEM; + goto out_free; + } + + re->desc = ubi_open_volume(ubi->ubi_num, vol_id, UBI_EXCLUSIVE); + if (IS_ERR(re->desc)) { + err = PTR_ERR(re->desc); + dbg_err("cannot open volume %d, error %d", vol_id, err); + kfree(re); + goto out_free; + } + + /* Skip this re-naming if the name does not really change */ + if (re->desc->vol->name_len == name_len && + !memcmp(re->desc->vol->name, name, name_len)) { + ubi_close_volume(re->desc); + kfree(re); + continue; + } + + re->new_name_len = name_len; + memcpy(re->new_name, name, name_len); + list_add_tail(&re->list, &rename_list); + dbg_msg("will rename volume %d from \"%s\" to \"%s\"", + vol_id, re->desc->vol->name, name); + } + + if (list_empty(&rename_list)) + return 0; + + /* Find out the volumes which have to be removed */ + list_for_each_entry(re, &rename_list, list) { + struct ubi_volume_desc *desc; + int no_remove_needed = 0; + + /* + * Volume @re->vol_id is going to be re-named to + * @re->new_name, while its current name is @name. If a volume + * with name @re->new_name currently exists, it has to be + * removed, unless it is also re-named in the request (@req). + */ + list_for_each_entry(re1, &rename_list, list) { + if (re->new_name_len == re1->desc->vol->name_len && + !memcmp(re->new_name, re1->desc->vol->name, + re1->desc->vol->name_len)) { + no_remove_needed = 1; + break; + } + } + + if (no_remove_needed) + continue; + + /* + * It seems we need to remove volume with name @re->new_name, + * if it exists. + */ + desc = ubi_open_volume_nm(ubi->ubi_num, re->new_name, UBI_EXCLUSIVE); + if (IS_ERR(desc)) { + err = PTR_ERR(desc); + if (err == -ENODEV) + /* Re-naming into a non-existing volume name */ + continue; + + /* The volume exists but busy, or an error occurred */ + dbg_err("cannot open volume \"%s\", error %d", + re->new_name, err); + goto out_free; + } + + re = kzalloc(sizeof(struct ubi_rename_entry), GFP_KERNEL); + if (!re) { + err = -ENOMEM; + ubi_close_volume(desc); + goto out_free; + } + + re->remove = 1; + re->desc = desc; + list_add(&re->list, &rename_list); + dbg_msg("will remove volume %d, name \"%s\"", + re->desc->vol->vol_id, re->desc->vol->name); + } + + mutex_lock(&ubi->volumes_mutex); + err = ubi_rename_volumes(ubi, &rename_list); + mutex_unlock(&ubi->volumes_mutex); + +out_free: + list_for_each_entry_safe(re, re1, &rename_list, list) { + ubi_close_volume(re->desc); + list_del(&re->list); + kfree(re); + } + return err; +} + static int ubi_cdev_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) { @@ -621,19 +786,18 @@ static int ubi_cdev_ioctl(struct inode *inode, struct file *file, { struct ubi_mkvol_req req; - dbg_msg("create volume"); + dbg_gen("create volume"); err = copy_from_user(&req, argp, sizeof(struct ubi_mkvol_req)); if (err) { err = -EFAULT; break; } + req.name[req.name_len] = '\0'; err = verify_mkvol_req(ubi, &req); if (err) break; - req.name[req.name_len] = '\0'; - mutex_lock(&ubi->volumes_mutex); err = ubi_create_volume(ubi, &req); mutex_unlock(&ubi->volumes_mutex); @@ -652,7 +816,7 @@ static int ubi_cdev_ioctl(struct inode *inode, struct file *file, { int vol_id; - dbg_msg("remove volume"); + dbg_gen("remove volume"); err = get_user(vol_id, (__user int32_t *)argp); if (err) { err = -EFAULT; @@ -666,7 +830,7 @@ static int ubi_cdev_ioctl(struct inode *inode, struct file *file, } mutex_lock(&ubi->volumes_mutex); - err = ubi_remove_volume(desc); + err = ubi_remove_volume(desc, 0); mutex_unlock(&ubi->volumes_mutex); /* @@ -685,7 +849,7 @@ static int ubi_cdev_ioctl(struct inode *inode, struct file *file, uint64_t tmp; struct ubi_rsvol_req req; - dbg_msg("re-size volume"); + dbg_gen("re-size volume"); err = copy_from_user(&req, argp, sizeof(struct ubi_rsvol_req)); if (err) { err = -EFAULT; @@ -713,6 +877,32 @@ static int ubi_cdev_ioctl(struct inode *inode, struct file *file, break; } + /* Re-name volumes command */ + case UBI_IOCRNVOL: + { + struct ubi_rnvol_req *req; + + dbg_msg("re-name volumes"); + req = kmalloc(sizeof(struct ubi_rnvol_req), GFP_KERNEL); + if (!req) { + err = -ENOMEM; + break; + }; + + err = copy_from_user(req, argp, sizeof(struct ubi_rnvol_req)); + if (err) { + err = -EFAULT; + kfree(req); + break; + } + + mutex_lock(&ubi->mult_mutex); + err = rename_volumes(ubi, req); + mutex_unlock(&ubi->mult_mutex); + kfree(req); + break; + } + default: err = -ENOTTY; break; @@ -738,7 +928,7 @@ static int ctrl_cdev_ioctl(struct inode *inode, struct file *file, struct ubi_attach_req req; struct mtd_info *mtd; - dbg_msg("attach MTD device"); + dbg_gen("attach MTD device"); err = copy_from_user(&req, argp, sizeof(struct ubi_attach_req)); if (err) { err = -EFAULT; @@ -778,7 +968,7 @@ static int ctrl_cdev_ioctl(struct inode *inode, struct file *file, { int ubi_num; - dbg_msg("dettach MTD device"); + dbg_gen("dettach MTD device"); err = get_user(ubi_num, (__user int32_t *)argp); if (err) { err = -EFAULT; diff --git a/drivers/mtd/ubi/debug.c b/drivers/mtd/ubi/debug.c index 56956ec..c0ed60e 100644 --- a/drivers/mtd/ubi/debug.c +++ b/drivers/mtd/ubi/debug.c @@ -24,7 +24,7 @@ * changes. */ -#ifdef CONFIG_MTD_UBI_DEBUG_MSG +#ifdef CONFIG_MTD_UBI_DEBUG #include "ubi.h" @@ -34,14 +34,19 @@ */ void ubi_dbg_dump_ec_hdr(const struct ubi_ec_hdr *ec_hdr) { - dbg_msg("erase counter header dump:"); - dbg_msg("magic %#08x", be32_to_cpu(ec_hdr->magic)); - dbg_msg("version %d", (int)ec_hdr->version); - dbg_msg("ec %llu", (long long)be64_to_cpu(ec_hdr->ec)); - dbg_msg("vid_hdr_offset %d", be32_to_cpu(ec_hdr->vid_hdr_offset)); - dbg_msg("data_offset %d", be32_to_cpu(ec_hdr->data_offset)); - dbg_msg("hdr_crc %#08x", be32_to_cpu(ec_hdr->hdr_crc)); - dbg_msg("erase counter header hexdump:"); + printk(KERN_DEBUG "Erase counter header dump:\n"); + printk(KERN_DEBUG "\tmagic %#08x\n", + be32_to_cpu(ec_hdr->magic)); + printk(KERN_DEBUG "\tversion %d\n", (int)ec_hdr->version); + printk(KERN_DEBUG "\tec %llu\n", + (long long)be64_to_cpu(ec_hdr->ec)); + printk(KERN_DEBUG "\tvid_hdr_offset %d\n", + be32_to_cpu(ec_hdr->vid_hdr_offset)); + printk(KERN_DEBUG "\tdata_offset %d\n", + be32_to_cpu(ec_hdr->data_offset)); + printk(KERN_DEBUG "\thdr_crc %#08x\n", + be32_to_cpu(ec_hdr->hdr_crc)); + printk(KERN_DEBUG "erase counter header hexdump:\n"); print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 32, 1, ec_hdr, UBI_EC_HDR_SIZE, 1); } @@ -52,22 +57,23 @@ void ubi_dbg_dump_ec_hdr(const struct ubi_ec_hdr *ec_hdr) */ void ubi_dbg_dump_vid_hdr(const struct ubi_vid_hdr *vid_hdr) { - dbg_msg("volume identifier header dump:"); - dbg_msg("magic %08x", be32_to_cpu(vid_hdr->magic)); - dbg_msg("version %d", (int)vid_hdr->version); - dbg_msg("vol_type %d", (int)vid_hdr->vol_type); - dbg_msg("copy_flag %d", (int)vid_hdr->copy_flag); - dbg_msg("compat %d", (int)vid_hdr->compat); - dbg_msg("vol_id %d", be32_to_cpu(vid_hdr->vol_id)); - dbg_msg("lnum %d", be32_to_cpu(vid_hdr->lnum)); - dbg_msg("leb_ver %u", be32_to_cpu(vid_hdr->leb_ver)); - dbg_msg("data_size %d", be32_to_cpu(vid_hdr->data_size)); - dbg_msg("used_ebs %d", be32_to_cpu(vid_hdr->used_ebs)); - dbg_msg("data_pad %d", be32_to_cpu(vid_hdr->data_pad)); - dbg_msg("sqnum %llu", + printk(KERN_DEBUG "Volume identifier header dump:\n"); + printk(KERN_DEBUG "\tmagic %08x\n", be32_to_cpu(vid_hdr->magic)); + printk(KERN_DEBUG "\tversion %d\n", (int)vid_hdr->version); + printk(KERN_DEBUG "\tvol_type %d\n", (int)vid_hdr->vol_type); + printk(KERN_DEBUG "\tcopy_flag %d\n", (int)vid_hdr->copy_flag); + printk(KERN_DEBUG "\tcompat %d\n", (int)vid_hdr->compat); + printk(KERN_DEBUG "\tvol_id %d\n", be32_to_cpu(vid_hdr->vol_id)); + printk(KERN_DEBUG "\tlnum %d\n", be32_to_cpu(vid_hdr->lnum)); + printk(KERN_DEBUG "\tdata_size %d\n", be32_to_cpu(vid_hdr->data_size)); + printk(KERN_DEBUG "\tused_ebs %d\n", be32_to_cpu(vid_hdr->used_ebs)); + printk(KERN_DEBUG "\tdata_pad %d\n", be32_to_cpu(vid_hdr->data_pad)); + printk(KERN_DEBUG "\tsqnum %llu\n", (unsigned long long)be64_to_cpu(vid_hdr->sqnum)); - dbg_msg("hdr_crc %08x", be32_to_cpu(vid_hdr->hdr_crc)); - dbg_msg("volume identifier header hexdump:"); + printk(KERN_DEBUG "\thdr_crc %08x\n", be32_to_cpu(vid_hdr->hdr_crc)); + printk(KERN_DEBUG "Volume identifier header hexdump:\n"); + print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 32, 1, + vid_hdr, UBI_VID_HDR_SIZE, 1); } /** @@ -76,27 +82,27 @@ void ubi_dbg_dump_vid_hdr(const struct ubi_vid_hdr *vid_hdr) */ void ubi_dbg_dump_vol_info(const struct ubi_volume *vol) { - dbg_msg("volume information dump:"); - dbg_msg("vol_id %d", vol->vol_id); - dbg_msg("reserved_pebs %d", vol->reserved_pebs); - dbg_msg("alignment %d", vol->alignment); - dbg_msg("data_pad %d", vol->data_pad); - dbg_msg("vol_type %d", vol->vol_type); - dbg_msg("name_len %d", vol->name_len); - dbg_msg("usable_leb_size %d", vol->usable_leb_size); - dbg_msg("used_ebs %d", vol->used_ebs); - dbg_msg("used_bytes %lld", vol->used_bytes); - dbg_msg("last_eb_bytes %d", vol->last_eb_bytes); - dbg_msg("corrupted %d", vol->corrupted); - dbg_msg("upd_marker %d", vol->upd_marker); + printk(KERN_DEBUG "Volume information dump:\n"); + printk(KERN_DEBUG "\tvol_id %d\n", vol->vol_id); + printk(KERN_DEBUG "\treserved_pebs %d\n", vol->reserved_pebs); + printk(KERN_DEBUG "\talignment %d\n", vol->alignment); + printk(KERN_DEBUG "\tdata_pad %d\n", vol->data_pad); + printk(KERN_DEBUG "\tvol_type %d\n", vol->vol_type); + printk(KERN_DEBUG "\tname_len %d\n", vol->name_len); + printk(KERN_DEBUG "\tusable_leb_size %d\n", vol->usable_leb_size); + printk(KERN_DEBUG "\tused_ebs %d\n", vol->used_ebs); + printk(KERN_DEBUG "\tused_bytes %lld\n", vol->used_bytes); + printk(KERN_DEBUG "\tlast_eb_bytes %d\n", vol->last_eb_bytes); + printk(KERN_DEBUG "\tcorrupted %d\n", vol->corrupted); + printk(KERN_DEBUG "\tupd_marker %d\n", vol->upd_marker); if (vol->name_len <= UBI_VOL_NAME_MAX && strnlen(vol->name, vol->name_len + 1) == vol->name_len) { - dbg_msg("name %s", vol->name); + printk(KERN_DEBUG "\tname %s\n", vol->name); } else { - dbg_msg("the 1st 5 characters of the name: %c%c%c%c%c", - vol->name[0], vol->name[1], vol->name[2], - vol->name[3], vol->name[4]); + printk(KERN_DEBUG "\t1st 5 characters of name: %c%c%c%c%c\n", + vol->name[0], vol->name[1], vol->name[2], + vol->name[3], vol->name[4]); } } @@ -109,28 +115,29 @@ void ubi_dbg_dump_vtbl_record(const struct ubi_vtbl_record *r, int idx) { int name_len = be16_to_cpu(r->name_len); - dbg_msg("volume table record %d dump:", idx); - dbg_msg("reserved_pebs %d", be32_to_cpu(r->reserved_pebs)); - dbg_msg("alignment %d", be32_to_cpu(r->alignment)); - dbg_msg("data_pad %d", be32_to_cpu(r->data_pad)); - dbg_msg("vol_type %d", (int)r->vol_type); - dbg_msg("upd_marker %d", (int)r->upd_marker); - dbg_msg("name_len %d", name_len); + printk(KERN_DEBUG "Volume table record %d dump:\n", idx); + printk(KERN_DEBUG "\treserved_pebs %d\n", + be32_to_cpu(r->reserved_pebs)); + printk(KERN_DEBUG "\talignment %d\n", be32_to_cpu(r->alignment)); + printk(KERN_DEBUG "\tdata_pad %d\n", be32_to_cpu(r->data_pad)); + printk(KERN_DEBUG "\tvol_type %d\n", (int)r->vol_type); + printk(KERN_DEBUG "\tupd_marker %d\n", (int)r->upd_marker); + printk(KERN_DEBUG "\tname_len %d\n", name_len); if (r->name[0] == '\0') { - dbg_msg("name NULL"); + printk(KERN_DEBUG "\tname NULL\n"); return; } if (name_len <= UBI_VOL_NAME_MAX && strnlen(&r->name[0], name_len + 1) == name_len) { - dbg_msg("name %s", &r->name[0]); + printk(KERN_DEBUG "\tname %s\n", &r->name[0]); } else { - dbg_msg("1st 5 characters of the name: %c%c%c%c%c", + printk(KERN_DEBUG "\t1st 5 characters of name: %c%c%c%c%c\n", r->name[0], r->name[1], r->name[2], r->name[3], r->name[4]); } - dbg_msg("crc %#08x", be32_to_cpu(r->crc)); + printk(KERN_DEBUG "\tcrc %#08x\n", be32_to_cpu(r->crc)); } /** @@ -139,15 +146,15 @@ void ubi_dbg_dump_vtbl_record(const struct ubi_vtbl_record *r, int idx) */ void ubi_dbg_dump_sv(const struct ubi_scan_volume *sv) { - dbg_msg("volume scanning information dump:"); - dbg_msg("vol_id %d", sv->vol_id); - dbg_msg("highest_lnum %d", sv->highest_lnum); - dbg_msg("leb_count %d", sv->leb_count); - dbg_msg("compat %d", sv->compat); - dbg_msg("vol_type %d", sv->vol_type); - dbg_msg("used_ebs %d", sv->used_ebs); - dbg_msg("last_data_size %d", sv->last_data_size); - dbg_msg("data_pad %d", sv->data_pad); + printk(KERN_DEBUG "Volume scanning information dump:\n"); + printk(KERN_DEBUG "\tvol_id %d\n", sv->vol_id); + printk(KERN_DEBUG "\thighest_lnum %d\n", sv->highest_lnum); + printk(KERN_DEBUG "\tleb_count %d\n", sv->leb_count); + printk(KERN_DEBUG "\tcompat %d\n", sv->compat); + printk(KERN_DEBUG "\tvol_type %d\n", sv->vol_type); + printk(KERN_DEBUG "\tused_ebs %d\n", sv->used_ebs); + printk(KERN_DEBUG "\tlast_data_size %d\n", sv->last_data_size); + printk(KERN_DEBUG "\tdata_pad %d\n", sv->data_pad); } /** @@ -157,14 +164,13 @@ void ubi_dbg_dump_sv(const struct ubi_scan_volume *sv) */ void ubi_dbg_dump_seb(const struct ubi_scan_leb *seb, int type) { - dbg_msg("eraseblock scanning information dump:"); - dbg_msg("ec %d", seb->ec); - dbg_msg("pnum %d", seb->pnum); + printk(KERN_DEBUG "eraseblock scanning information dump:\n"); + printk(KERN_DEBUG "\tec %d\n", seb->ec); + printk(KERN_DEBUG "\tpnum %d\n", seb->pnum); if (type == 0) { - dbg_msg("lnum %d", seb->lnum); - dbg_msg("scrub %d", seb->scrub); - dbg_msg("sqnum %llu", seb->sqnum); - dbg_msg("leb_ver %u", seb->leb_ver); + printk(KERN_DEBUG "\tlnum %d\n", seb->lnum); + printk(KERN_DEBUG "\tscrub %d\n", seb->scrub); + printk(KERN_DEBUG "\tsqnum %llu\n", seb->sqnum); } } @@ -176,16 +182,16 @@ void ubi_dbg_dump_mkvol_req(const struct ubi_mkvol_req *req) { char nm[17]; - dbg_msg("volume creation request dump:"); - dbg_msg("vol_id %d", req->vol_id); - dbg_msg("alignment %d", req->alignment); - dbg_msg("bytes %lld", (long long)req->bytes); - dbg_msg("vol_type %d", req->vol_type); - dbg_msg("name_len %d", req->name_len); + printk(KERN_DEBUG "Volume creation request dump:\n"); + printk(KERN_DEBUG "\tvol_id %d\n", req->vol_id); + printk(KERN_DEBUG "\talignment %d\n", req->alignment); + printk(KERN_DEBUG "\tbytes %lld\n", (long long)req->bytes); + printk(KERN_DEBUG "\tvol_type %d\n", req->vol_type); + printk(KERN_DEBUG "\tname_len %d\n", req->name_len); memcpy(nm, req->name, 16); nm[16] = 0; - dbg_msg("the 1st 16 characters of the name: %s", nm); + printk(KERN_DEBUG "\t1st 16 characters of name: %s\n", nm); } -#endif /* CONFIG_MTD_UBI_DEBUG_MSG */ +#endif /* CONFIG_MTD_UBI_DEBUG */ diff --git a/drivers/mtd/ubi/debug.h b/drivers/mtd/ubi/debug.h index 8ea99d8..78e914d 100644 --- a/drivers/mtd/ubi/debug.h +++ b/drivers/mtd/ubi/debug.h @@ -24,21 +24,16 @@ #ifdef CONFIG_MTD_UBI_DEBUG #include <linux/random.h> -#define ubi_assert(expr) BUG_ON(!(expr)) #define dbg_err(fmt, ...) ubi_err(fmt, ##__VA_ARGS__) -#else -#define ubi_assert(expr) ({}) -#define dbg_err(fmt, ...) ({}) -#endif -#ifdef CONFIG_MTD_UBI_DEBUG_DISABLE_BGT -#define DBG_DISABLE_BGT 1 -#else -#define DBG_DISABLE_BGT 0 -#endif +#define ubi_assert(expr) do { \ + if (unlikely(!(expr))) { \ + printk(KERN_CRIT "UBI assert failed in %s at %u (pid %d)\n", \ + __func__, __LINE__, current->pid); \ + ubi_dbg_dump_stack(); \ + } \ +} while (0) -#ifdef CONFIG_MTD_UBI_DEBUG_MSG -/* Generic debugging message */ #define dbg_msg(fmt, ...) \ printk(KERN_DEBUG "UBI DBG (pid %d): %s: " fmt "\n", \ current->pid, __func__, ##__VA_ARGS__) @@ -61,36 +56,29 @@ void ubi_dbg_dump_sv(const struct ubi_scan_volume *sv); void ubi_dbg_dump_seb(const struct ubi_scan_leb *seb, int type); void ubi_dbg_dump_mkvol_req(const struct ubi_mkvol_req *req); +#ifdef CONFIG_MTD_UBI_DEBUG_MSG +/* General debugging messages */ +#define dbg_gen(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__) #else - -#define dbg_msg(fmt, ...) ({}) -#define ubi_dbg_dump_stack() ({}) -#define ubi_dbg_dump_ec_hdr(ec_hdr) ({}) -#define ubi_dbg_dump_vid_hdr(vid_hdr) ({}) -#define ubi_dbg_dump_vol_info(vol) ({}) -#define ubi_dbg_dump_vtbl_record(r, idx) ({}) -#define ubi_dbg_dump_sv(sv) ({}) -#define ubi_dbg_dump_seb(seb, type) ({}) -#define ubi_dbg_dump_mkvol_req(req) ({}) - -#endif /* CONFIG_MTD_UBI_DEBUG_MSG */ +#define dbg_gen(fmt, ...) ({}) +#endif #ifdef CONFIG_MTD_UBI_DEBUG_MSG_EBA -/* Messages from the eraseblock association unit */ +/* Messages from the eraseblock association sub-system */ #define dbg_eba(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__) #else #define dbg_eba(fmt, ...) ({}) #endif #ifdef CONFIG_MTD_UBI_DEBUG_MSG_WL -/* Messages from the wear-leveling unit */ +/* Messages from the wear-leveling sub-system */ #define dbg_wl(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__) #else #define dbg_wl(fmt, ...) ({}) #endif #ifdef CONFIG_MTD_UBI_DEBUG_MSG_IO -/* Messages from the input/output unit */ +/* Messages from the input/output sub-system */ #define dbg_io(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__) #else #define dbg_io(fmt, ...) ({}) @@ -105,6 +93,12 @@ void ubi_dbg_dump_mkvol_req(const struct ubi_mkvol_req *req); #define UBI_IO_DEBUG 0 #endif +#ifdef CONFIG_MTD_UBI_DEBUG_DISABLE_BGT +#define DBG_DISABLE_BGT 1 +#else +#define DBG_DISABLE_BGT 0 +#endif + #ifdef CONFIG_MTD_UBI_DEBUG_EMULATE_BITFLIPS /** * ubi_dbg_is_bitflip - if it is time to emulate a bit-flip. @@ -149,4 +143,30 @@ static inline int ubi_dbg_is_erase_failure(void) #define ubi_dbg_is_erase_failure() 0 #endif +#else + +#define ubi_assert(expr) ({}) +#define dbg_err(fmt, ...) ({}) +#define dbg_msg(fmt, ...) ({}) +#define dbg_gen(fmt, ...) ({}) +#define dbg_eba(fmt, ...) ({}) +#define dbg_wl(fmt, ...) ({}) +#define dbg_io(fmt, ...) ({}) +#define dbg_bld(fmt, ...) ({}) +#define ubi_dbg_dump_stack() ({}) +#define ubi_dbg_dump_ec_hdr(ec_hdr) ({}) +#define ubi_dbg_dump_vid_hdr(vid_hdr) ({}) +#define ubi_dbg_dump_vol_info(vol) ({}) +#define ubi_dbg_dump_vtbl_record(r, idx) ({}) +#define ubi_dbg_dump_sv(sv) ({}) +#define ubi_dbg_dump_seb(seb, type) ({}) +#define ubi_dbg_dump_mkvol_req(req) ({}) + +#define UBI_IO_DEBUG 0 +#define DBG_DISABLE_BGT 0 +#define ubi_dbg_is_bitflip() 0 +#define ubi_dbg_is_write_failure() 0 +#define ubi_dbg_is_erase_failure() 0 + +#endif /* !CONFIG_MTD_UBI_DEBUG */ #endif /* !__UBI_DEBUG_H__ */ diff --git a/drivers/mtd/ubi/eba.c b/drivers/mtd/ubi/eba.c index 7ce91ca..e04bcf1 100644 --- a/drivers/mtd/ubi/eba.c +++ b/drivers/mtd/ubi/eba.c @@ -19,20 +19,20 @@ */ /* - * The UBI Eraseblock Association (EBA) unit. + * The UBI Eraseblock Association (EBA) sub-system. * - * This unit is responsible for I/O to/from logical eraseblock. + * This sub-system is responsible for I/O to/from logical eraseblock. * * Although in this implementation the EBA table is fully kept and managed in * RAM, which assumes poor scalability, it might be (partially) maintained on * flash in future implementations. * - * The EBA unit implements per-logical eraseblock locking. Before accessing a - * logical eraseblock it is locked for reading or writing. The per-logical - * eraseblock locking is implemented by means of the lock tree. The lock tree - * is an RB-tree which refers all the currently locked logical eraseblocks. The - * lock tree elements are &struct ubi_ltree_entry objects. They are indexed by - * (@vol_id, @lnum) pairs. + * The EBA sub-system implements per-logical eraseblock locking. Before + * accessing a logical eraseblock it is locked for reading or writing. The + * per-logical eraseblock locking is implemented by means of the lock tree. The + * lock tree is an RB-tree which refers all the currently locked logical + * eraseblocks. The lock tree elements are &struct ubi_ltree_entry objects. + * They are indexed by (@vol_id, @lnum) pairs. * * EBA also maintains the global sequence counter which is incremented each * time a logical eraseblock is mapped to a physical eraseblock and it is @@ -189,9 +189,7 @@ static struct ubi_ltree_entry *ltree_add_entry(struct ubi_device *ubi, le->users += 1; spin_unlock(&ubi->ltree_lock); - if (le_free) - kfree(le_free); - + kfree(le_free); return le; } @@ -223,22 +221,18 @@ static int leb_read_lock(struct ubi_device *ubi, int vol_id, int lnum) */ static void leb_read_unlock(struct ubi_device *ubi, int vol_id, int lnum) { - int free = 0; struct ubi_ltree_entry *le; spin_lock(&ubi->ltree_lock); le = ltree_lookup(ubi, vol_id, lnum); le->users -= 1; ubi_assert(le->users >= 0); + up_read(&le->mutex); if (le->users == 0) { rb_erase(&le->rb, &ubi->ltree); - free = 1; + kfree(le); } spin_unlock(&ubi->ltree_lock); - - up_read(&le->mutex); - if (free) - kfree(le); } /** @@ -274,7 +268,6 @@ static int leb_write_lock(struct ubi_device *ubi, int vol_id, int lnum) */ static int leb_write_trylock(struct ubi_device *ubi, int vol_id, int lnum) { - int free; struct ubi_ltree_entry *le; le = ltree_add_entry(ubi, vol_id, lnum); @@ -289,12 +282,9 @@ static int leb_write_trylock(struct ubi_device *ubi, int vol_id, int lnum) ubi_assert(le->users >= 0); if (le->users == 0) { rb_erase(&le->rb, &ubi->ltree); - free = 1; - } else - free = 0; - spin_unlock(&ubi->ltree_lock); - if (free) kfree(le); + } + spin_unlock(&ubi->ltree_lock); return 1; } @@ -307,23 +297,18 @@ static int leb_write_trylock(struct ubi_device *ubi, int vol_id, int lnum) */ static void leb_write_unlock(struct ubi_device *ubi, int vol_id, int lnum) { - int free; struct ubi_ltree_entry *le; spin_lock(&ubi->ltree_lock); le = ltree_lookup(ubi, vol_id, lnum); le->users -= 1; ubi_assert(le->users >= 0); + up_write(&le->mutex); if (le->users == 0) { rb_erase(&le->rb, &ubi->ltree); - free = 1; - } else - free = 0; - spin_unlock(&ubi->ltree_lock); - - up_write(&le->mutex); - if (free) kfree(le); + } + spin_unlock(&ubi->ltree_lock); } /** @@ -516,9 +501,8 @@ static int recover_peb(struct ubi_device *ubi, int pnum, int vol_id, int lnum, struct ubi_vid_hdr *vid_hdr; vid_hdr = ubi_zalloc_vid_hdr(ubi, GFP_NOFS); - if (!vid_hdr) { + if (!vid_hdr) return -ENOMEM; - } mutex_lock(&ubi->buf_mutex); @@ -752,7 +736,7 @@ int ubi_eba_write_leb_st(struct ubi_device *ubi, struct ubi_volume *vol, /* If this is the last LEB @len may be unaligned */ len = ALIGN(data_size, ubi->min_io_size); else - ubi_assert(len % ubi->min_io_size == 0); + ubi_assert(!(len & (ubi->min_io_size - 1))); vid_hdr = ubi_zalloc_vid_hdr(ubi, GFP_NOFS); if (!vid_hdr) @@ -919,7 +903,7 @@ retry: } if (vol->eba_tbl[lnum] >= 0) { - err = ubi_wl_put_peb(ubi, vol->eba_tbl[lnum], 1); + err = ubi_wl_put_peb(ubi, vol->eba_tbl[lnum], 0); if (err) goto out_leb_unlock; } @@ -1141,7 +1125,7 @@ out_unlock_leb: } /** - * ubi_eba_init_scan - initialize the EBA unit using scanning information. + * ubi_eba_init_scan - initialize the EBA sub-system using scanning information. * @ubi: UBI device description object * @si: scanning information * @@ -1156,7 +1140,7 @@ int ubi_eba_init_scan(struct ubi_device *ubi, struct ubi_scan_info *si) struct ubi_scan_leb *seb; struct rb_node *rb; - dbg_eba("initialize EBA unit"); + dbg_eba("initialize EBA sub-system"); spin_lock_init(&ubi->ltree_lock); mutex_init(&ubi->alc_mutex); @@ -1222,7 +1206,7 @@ int ubi_eba_init_scan(struct ubi_device *ubi, struct ubi_scan_info *si) ubi->rsvd_pebs += ubi->beb_rsvd_pebs; } - dbg_eba("EBA unit is initialized"); + dbg_eba("EBA sub-system is initialized"); return 0; out_free: @@ -1233,20 +1217,3 @@ out_free: } return err; } - -/** - * ubi_eba_close - close EBA unit. - * @ubi: UBI device description object - */ -void ubi_eba_close(const struct ubi_device *ubi) -{ - int i, num_volumes = ubi->vtbl_slots + UBI_INT_VOL_COUNT; - - dbg_eba("close EBA unit"); - - for (i = 0; i < num_volumes; i++) { - if (!ubi->volumes[i]) - continue; - kfree(ubi->volumes[i]->eba_tbl); - } -} diff --git a/drivers/mtd/ubi/gluebi.c b/drivers/mtd/ubi/gluebi.c index e909b39..605812b 100644 --- a/drivers/mtd/ubi/gluebi.c +++ b/drivers/mtd/ubi/gluebi.c @@ -111,7 +111,7 @@ static int gluebi_read(struct mtd_info *mtd, loff_t from, size_t len, struct ubi_device *ubi; uint64_t tmp = from; - dbg_msg("read %zd bytes from offset %lld", len, from); + dbg_gen("read %zd bytes from offset %lld", len, from); if (len < 0 || from < 0 || from + len > mtd->size) return -EINVAL; @@ -162,7 +162,7 @@ static int gluebi_write(struct mtd_info *mtd, loff_t to, size_t len, struct ubi_device *ubi; uint64_t tmp = to; - dbg_msg("write %zd bytes to offset %lld", len, to); + dbg_gen("write %zd bytes to offset %lld", len, to); if (len < 0 || to < 0 || len + to > mtd->size) return -EINVAL; @@ -215,7 +215,7 @@ static int gluebi_erase(struct mtd_info *mtd, struct erase_info *instr) struct ubi_volume *vol; struct ubi_device *ubi; - dbg_msg("erase %u bytes at offset %u", instr->len, instr->addr); + dbg_gen("erase %u bytes at offset %u", instr->len, instr->addr); if (instr->addr < 0 || instr->addr > mtd->size - mtd->erasesize) return -EINVAL; @@ -249,8 +249,8 @@ static int gluebi_erase(struct mtd_info *mtd, struct erase_info *instr) if (err) goto out_err; - instr->state = MTD_ERASE_DONE; - mtd_erase_callback(instr); + instr->state = MTD_ERASE_DONE; + mtd_erase_callback(instr); return 0; out_err: @@ -299,12 +299,12 @@ int ubi_create_gluebi(struct ubi_device *ubi, struct ubi_volume *vol) mtd->size = vol->used_bytes; if (add_mtd_device(mtd)) { - ubi_err("cannot not add MTD device\n"); + ubi_err("cannot not add MTD device"); kfree(mtd->name); return -ENFILE; } - dbg_msg("added mtd%d (\"%s\"), size %u, EB size %u", + dbg_gen("added mtd%d (\"%s\"), size %u, EB size %u", mtd->index, mtd->name, mtd->size, mtd->erasesize); return 0; } @@ -322,7 +322,7 @@ int ubi_destroy_gluebi(struct ubi_volume *vol) int err; struct mtd_info *mtd = &vol->gluebi_mtd; - dbg_msg("remove mtd%d", mtd->index); + dbg_gen("remove mtd%d", mtd->index); err = del_mtd_device(mtd); if (err) return err; diff --git a/drivers/mtd/ubi/io.c b/drivers/mtd/ubi/io.c index 4ac11df..2fb64be 100644 --- a/drivers/mtd/ubi/io.c +++ b/drivers/mtd/ubi/io.c @@ -20,15 +20,15 @@ */ /* - * UBI input/output unit. + * UBI input/output sub-system. * - * This unit provides a uniform way to work with all kinds of the underlying - * MTD devices. It also implements handy functions for reading and writing UBI - * headers. + * This sub-system provides a uniform way to work with all kinds of the + * underlying MTD devices. It also implements handy functions for reading and + * writing UBI headers. * * We are trying to have a paranoid mindset and not to trust to what we read - * from the flash media in order to be more secure and robust. So this unit - * validates every single header it reads from the flash media. + * from the flash media in order to be more secure and robust. So this + * sub-system validates every single header it reads from the flash media. * * Some words about how the eraseblock headers are stored. * @@ -79,11 +79,11 @@ * 512-byte chunks, we have to allocate one more buffer and copy our VID header * to offset 448 of this buffer. * - * The I/O unit does the following trick in order to avoid this extra copy. - * It always allocates a @ubi->vid_hdr_alsize bytes buffer for the VID header - * and returns a pointer to offset @ubi->vid_hdr_shift of this buffer. When the - * VID header is being written out, it shifts the VID header pointer back and - * writes the whole sub-page. + * The I/O sub-system does the following trick in order to avoid this extra + * copy. It always allocates a @ubi->vid_hdr_alsize bytes buffer for the VID + * header and returns a pointer to offset @ubi->vid_hdr_shift of this buffer. + * When the VID header is being written out, it shifts the VID header pointer + * back and writes the whole sub-page. */ #include <linux/crc32.h> @@ -156,15 +156,19 @@ retry: /* * -EUCLEAN is reported if there was a bit-flip which * was corrected, so this is harmless. + * + * We do not report about it here unless debugging is + * enabled. A corresponding message will be printed + * later, when it is has been scrubbed. */ - ubi_msg("fixable bit-flip detected at PEB %d", pnum); + dbg_msg("fixable bit-flip detected at PEB %d", pnum); ubi_assert(len == read); return UBI_IO_BITFLIPS; } if (read != len && retries++ < UBI_IO_RETRIES) { - dbg_io("error %d while reading %d bytes from PEB %d:%d, " - "read only %zd bytes, retry", + dbg_io("error %d while reading %d bytes from PEB %d:%d," + " read only %zd bytes, retry", err, len, pnum, offset, read); yield(); goto retry; @@ -187,7 +191,7 @@ retry: ubi_assert(len == read); if (ubi_dbg_is_bitflip()) { - dbg_msg("bit-flip (emulated)"); + dbg_gen("bit-flip (emulated)"); err = UBI_IO_BITFLIPS; } } @@ -391,6 +395,7 @@ static int torture_peb(struct ubi_device *ubi, int pnum) { int err, i, patt_count; + ubi_msg("run torture test for PEB %d", pnum); patt_count = ARRAY_SIZE(patterns); ubi_assert(patt_count > 0); @@ -434,6 +439,7 @@ static int torture_peb(struct ubi_device *ubi, int pnum) } err = patt_count; + ubi_msg("PEB %d passed torture test, do not mark it a bad", pnum); out: mutex_unlock(&ubi->buf_mutex); @@ -699,8 +705,8 @@ int ubi_io_read_ec_hdr(struct ubi_device *ubi, int pnum, if (hdr_crc != crc) { if (verbose) { - ubi_warn("bad EC header CRC at PEB %d, calculated %#08x," - " read %#08x", pnum, crc, hdr_crc); + ubi_warn("bad EC header CRC at PEB %d, calculated " + "%#08x, read %#08x", pnum, crc, hdr_crc); ubi_dbg_dump_ec_hdr(ec_hdr); } return UBI_IO_BAD_EC_HDR; @@ -1095,8 +1101,7 @@ fail: } /** - * paranoid_check_peb_ec_hdr - check that the erase counter header of a - * physical eraseblock is in-place and is all right. + * paranoid_check_peb_ec_hdr - check erase counter header. * @ubi: UBI device description object * @pnum: the physical eraseblock number to check * @@ -1174,8 +1179,7 @@ fail: } /** - * paranoid_check_peb_vid_hdr - check that the volume identifier header of a - * physical eraseblock is in-place and is all right. + * paranoid_check_peb_vid_hdr - check volume identifier header. * @ubi: UBI device description object * @pnum: the physical eraseblock number to check * @@ -1256,7 +1260,7 @@ static int paranoid_check_all_ff(struct ubi_device *ubi, int pnum, int offset, fail: ubi_err("paranoid check failed for PEB %d", pnum); - dbg_msg("hex dump of the %d-%d region", offset, offset + len); + ubi_msg("hex dump of the %d-%d region", offset, offset + len); print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 32, 1, ubi->dbg_peb_buf, len, 1); err = 1; diff --git a/drivers/mtd/ubi/kapi.c b/drivers/mtd/ubi/kapi.c index a70d588..5d9bcf1 100644 --- a/drivers/mtd/ubi/kapi.c +++ b/drivers/mtd/ubi/kapi.c @@ -106,7 +106,7 @@ struct ubi_volume_desc *ubi_open_volume(int ubi_num, int vol_id, int mode) struct ubi_device *ubi; struct ubi_volume *vol; - dbg_msg("open device %d volume %d, mode %d", ubi_num, vol_id, mode); + dbg_gen("open device %d volume %d, mode %d", ubi_num, vol_id, mode); if (ubi_num < 0 || ubi_num >= UBI_MAX_DEVICES) return ERR_PTR(-EINVAL); @@ -215,7 +215,7 @@ struct ubi_volume_desc *ubi_open_volume_nm(int ubi_num, const char *name, struct ubi_device *ubi; struct ubi_volume_desc *ret; - dbg_msg("open volume %s, mode %d", name, mode); + dbg_gen("open volume %s, mode %d", name, mode); if (!name) return ERR_PTR(-EINVAL); @@ -266,7 +266,7 @@ void ubi_close_volume(struct ubi_volume_desc *desc) struct ubi_volume *vol = desc->vol; struct ubi_device *ubi = vol->ubi; - dbg_msg("close volume %d, mode %d", vol->vol_id, desc->mode); + dbg_gen("close volume %d, mode %d", vol->vol_id, desc->mode); spin_lock(&ubi->volumes_lock); switch (desc->mode) { @@ -323,7 +323,7 @@ int ubi_leb_read(struct ubi_volume_desc *desc, int lnum, char *buf, int offset, struct ubi_device *ubi = vol->ubi; int err, vol_id = vol->vol_id; - dbg_msg("read %d bytes from LEB %d:%d:%d", len, vol_id, lnum, offset); + dbg_gen("read %d bytes from LEB %d:%d:%d", len, vol_id, lnum, offset); if (vol_id < 0 || vol_id >= ubi->vtbl_slots || lnum < 0 || lnum >= vol->used_ebs || offset < 0 || len < 0 || @@ -388,7 +388,7 @@ int ubi_leb_write(struct ubi_volume_desc *desc, int lnum, const void *buf, struct ubi_device *ubi = vol->ubi; int vol_id = vol->vol_id; - dbg_msg("write %d bytes to LEB %d:%d:%d", len, vol_id, lnum, offset); + dbg_gen("write %d bytes to LEB %d:%d:%d", len, vol_id, lnum, offset); if (vol_id < 0 || vol_id >= ubi->vtbl_slots) return -EINVAL; @@ -397,8 +397,8 @@ int ubi_leb_write(struct ubi_volume_desc *desc, int lnum, const void *buf, return -EROFS; if (lnum < 0 || lnum >= vol->reserved_pebs || offset < 0 || len < 0 || - offset + len > vol->usable_leb_size || offset % ubi->min_io_size || - len % ubi->min_io_size) + offset + len > vol->usable_leb_size || + offset & (ubi->min_io_size - 1) || len & (ubi->min_io_size - 1)) return -EINVAL; if (dtype != UBI_LONGTERM && dtype != UBI_SHORTTERM && @@ -438,7 +438,7 @@ int ubi_leb_change(struct ubi_volume_desc *desc, int lnum, const void *buf, struct ubi_device *ubi = vol->ubi; int vol_id = vol->vol_id; - dbg_msg("atomically write %d bytes to LEB %d:%d", len, vol_id, lnum); + dbg_gen("atomically write %d bytes to LEB %d:%d", len, vol_id, lnum); if (vol_id < 0 || vol_id >= ubi->vtbl_slots) return -EINVAL; @@ -447,7 +447,7 @@ int ubi_leb_change(struct ubi_volume_desc *desc, int lnum, const void *buf, return -EROFS; if (lnum < 0 || lnum >= vol->reserved_pebs || len < 0 || - len > vol->usable_leb_size || len % ubi->min_io_size) + len > vol->usable_leb_size || len & (ubi->min_io_size - 1)) return -EINVAL; if (dtype != UBI_LONGTERM && dtype != UBI_SHORTTERM && @@ -482,7 +482,7 @@ int ubi_leb_erase(struct ubi_volume_desc *desc, int lnum) struct ubi_device *ubi = vol->ubi; int err; - dbg_msg("erase LEB %d:%d", vol->vol_id, lnum); + dbg_gen("erase LEB %d:%d", vol->vol_id, lnum); if (desc->mode == UBI_READONLY || vol->vol_type == UBI_STATIC_VOLUME) return -EROFS; @@ -542,7 +542,7 @@ int ubi_leb_unmap(struct ubi_volume_desc *desc, int lnum) struct ubi_volume *vol = desc->vol; struct ubi_device *ubi = vol->ubi; - dbg_msg("unmap LEB %d:%d", vol->vol_id, lnum); + dbg_gen("unmap LEB %d:%d", vol->vol_id, lnum); if (desc->mode == UBI_READONLY || vol->vol_type == UBI_STATIC_VOLUME) return -EROFS; @@ -579,7 +579,7 @@ int ubi_leb_map(struct ubi_volume_desc *desc, int lnum, int dtype) struct ubi_volume *vol = desc->vol; struct ubi_device *ubi = vol->ubi; - dbg_msg("unmap LEB %d:%d", vol->vol_id, lnum); + dbg_gen("unmap LEB %d:%d", vol->vol_id, lnum); if (desc->mode == UBI_READONLY || vol->vol_type == UBI_STATIC_VOLUME) return -EROFS; @@ -621,7 +621,7 @@ int ubi_is_mapped(struct ubi_volume_desc *desc, int lnum) { struct ubi_volume *vol = desc->vol; - dbg_msg("test LEB %d:%d", vol->vol_id, lnum); + dbg_gen("test LEB %d:%d", vol->vol_id, lnum); if (lnum < 0 || lnum >= vol->reserved_pebs) return -EINVAL; @@ -632,3 +632,27 @@ int ubi_is_mapped(struct ubi_volume_desc *desc, int lnum) return vol->eba_tbl[lnum] >= 0; } EXPORT_SYMBOL_GPL(ubi_is_mapped); + +/** + * ubi_sync - synchronize UBI device buffers. + * @ubi_num: UBI device to synchronize + * + * The underlying MTD device may cache data in hardware or in software. This + * function ensures the caches are flushed. Returns zero in case of success and + * a negative error code in case of failure. + */ +int ubi_sync(int ubi_num) +{ + struct ubi_device *ubi; + + ubi = ubi_get_device(ubi_num); + if (!ubi) + return -ENODEV; + + if (ubi->mtd->sync) + ubi->mtd->sync(ubi->mtd); + + ubi_put_device(ubi); + return 0; +} +EXPORT_SYMBOL_GPL(ubi_sync); diff --git a/drivers/mtd/ubi/misc.c b/drivers/mtd/ubi/misc.c index 93e0528..22ad314 100644 --- a/drivers/mtd/ubi/misc.c +++ b/drivers/mtd/ubi/misc.c @@ -37,7 +37,7 @@ int ubi_calc_data_len(const struct ubi_device *ubi, const void *buf, { int i; - ubi_assert(length % ubi->min_io_size == 0); + ubi_assert(!(length & (ubi->min_io_size - 1))); for (i = length - 1; i >= 0; i--) if (((const uint8_t *)buf)[i] != 0xFF) diff --git a/drivers/mtd/ubi/scan.c b/drivers/mtd/ubi/scan.c index 96d410e..967bb44 100644 --- a/drivers/mtd/ubi/scan.c +++ b/drivers/mtd/ubi/scan.c @@ -19,9 +19,9 @@ */ /* - * UBI scanning unit. + * UBI scanning sub-system. * - * This unit is responsible for scanning the flash media, checking UBI + * This sub-system is responsible for scanning the flash media, checking UBI * headers and providing complete information about the UBI flash image. * * The scanning information is represented by a &struct ubi_scan_info' object. @@ -93,8 +93,7 @@ static int add_to_list(struct ubi_scan_info *si, int pnum, int ec, } /** - * validate_vid_hdr - check that volume identifier header is correct and - * consistent. + * validate_vid_hdr - check volume identifier header. * @vid_hdr: the volume identifier header to check * @sv: information about the volume this logical eraseblock belongs to * @pnum: physical eraseblock number the VID header came from @@ -103,7 +102,7 @@ static int add_to_list(struct ubi_scan_info *si, int pnum, int ec, * non-zero if an inconsistency was found and zero if not. * * Note, UBI does sanity check of everything it reads from the flash media. - * Most of the checks are done in the I/O unit. Here we check that the + * Most of the checks are done in the I/O sub-system. Here we check that the * information in the VID header is consistent to the information in other VID * headers of the same volume. */ @@ -247,45 +246,21 @@ static int compare_lebs(struct ubi_device *ubi, const struct ubi_scan_leb *seb, struct ubi_vid_hdr *vh = NULL; unsigned long long sqnum2 = be64_to_cpu(vid_hdr->sqnum); - if (seb->sqnum == 0 && sqnum2 == 0) { - long long abs, v1 = seb->leb_ver, v2 = be32_to_cpu(vid_hdr->leb_ver); - + if (sqnum2 == seb->sqnum) { /* - * UBI constantly increases the logical eraseblock version - * number and it can overflow. Thus, we have to bear in mind - * that versions that are close to %0xFFFFFFFF are less then - * versions that are close to %0. - * - * The UBI WL unit guarantees that the number of pending tasks - * is not greater then %0x7FFFFFFF. So, if the difference - * between any two versions is greater or equivalent to - * %0x7FFFFFFF, there was an overflow and the logical - * eraseblock with lower version is actually newer then the one - * with higher version. - * - * FIXME: but this is anyway obsolete and will be removed at - * some point. + * This must be a really ancient UBI image which has been + * created before sequence numbers support has been added. At + * that times we used 32-bit LEB versions stored in logical + * eraseblocks. That was before UBI got into mainline. We do not + * support these images anymore. Well, those images will work + * still work, but only if no unclean reboots happened. */ - dbg_bld("using old crappy leb_ver stuff"); - - if (v1 == v2) { - ubi_err("PEB %d and PEB %d have the same version %lld", - seb->pnum, pnum, v1); - return -EINVAL; - } - - abs = v1 - v2; - if (abs < 0) - abs = -abs; + ubi_err("unsupported on-flash UBI format\n"); + return -EINVAL; + } - if (abs < 0x7FFFFFFF) - /* Non-overflow situation */ - second_is_newer = (v2 > v1); - else - second_is_newer = (v2 < v1); - } else - /* Obviously the LEB with lower sequence counter is older */ - second_is_newer = sqnum2 > seb->sqnum; + /* Obviously the LEB with lower sequence counter is older */ + second_is_newer = !!(sqnum2 > seb->sqnum); /* * Now we know which copy is newer. If the copy flag of the PEB with @@ -293,7 +268,7 @@ static int compare_lebs(struct ubi_device *ubi, const struct ubi_scan_leb *seb, * check data CRC. For the second PEB we already have the VID header, * for the first one - we'll need to re-read it from flash. * - * FIXME: this may be optimized so that we wouldn't read twice. + * Note: this may be optimized so that we wouldn't read twice. */ if (second_is_newer) { @@ -379,8 +354,7 @@ out_free_vidh: } /** - * ubi_scan_add_used - add information about a physical eraseblock to the - * scanning information. + * ubi_scan_add_used - add physical eraseblock to the scanning information. * @ubi: UBI device description object * @si: scanning information * @pnum: the physical eraseblock number @@ -400,7 +374,6 @@ int ubi_scan_add_used(struct ubi_device *ubi, struct ubi_scan_info *si, int bitflips) { int err, vol_id, lnum; - uint32_t leb_ver; unsigned long long sqnum; struct ubi_scan_volume *sv; struct ubi_scan_leb *seb; @@ -409,10 +382,9 @@ int ubi_scan_add_used(struct ubi_device *ubi, struct ubi_scan_info *si, vol_id = be32_to_cpu(vid_hdr->vol_id); lnum = be32_to_cpu(vid_hdr->lnum); sqnum = be64_to_cpu(vid_hdr->sqnum); - leb_ver = be32_to_cpu(vid_hdr->leb_ver); - dbg_bld("PEB %d, LEB %d:%d, EC %d, sqnum %llu, ver %u, bitflips %d", - pnum, vol_id, lnum, ec, sqnum, leb_ver, bitflips); + dbg_bld("PEB %d, LEB %d:%d, EC %d, sqnum %llu, bitflips %d", + pnum, vol_id, lnum, ec, sqnum, bitflips); sv = add_volume(si, vol_id, pnum, vid_hdr); if (IS_ERR(sv) < 0) @@ -445,25 +417,20 @@ int ubi_scan_add_used(struct ubi_device *ubi, struct ubi_scan_info *si, */ dbg_bld("this LEB already exists: PEB %d, sqnum %llu, " - "LEB ver %u, EC %d", seb->pnum, seb->sqnum, - seb->leb_ver, seb->ec); - - /* - * Make sure that the logical eraseblocks have different - * versions. Otherwise the image is bad. - */ - if (seb->leb_ver == leb_ver && leb_ver != 0) { - ubi_err("two LEBs with same version %u", leb_ver); - ubi_dbg_dump_seb(seb, 0); - ubi_dbg_dump_vid_hdr(vid_hdr); - return -EINVAL; - } + "EC %d", seb->pnum, seb->sqnum, seb->ec); /* * Make sure that the logical eraseblocks have different * sequence numbers. Otherwise the image is bad. * - * FIXME: remove 'sqnum != 0' check when leb_ver is removed. + * However, if the sequence number is zero, we assume it must + * be an ancient UBI image from the era when UBI did not have + * sequence numbers. We still can attach these images, unless + * there is a need to distinguish between old and new + * eraseblocks, in which case we'll refuse the image in + * 'compare_lebs()'. In other words, we attach old clean + * images, but refuse attaching old images with duplicated + * logical eraseblocks because there was an unclean reboot. */ if (seb->sqnum == sqnum && sqnum != 0) { ubi_err("two LEBs with same sequence number %llu", @@ -503,7 +470,6 @@ int ubi_scan_add_used(struct ubi_device *ubi, struct ubi_scan_info *si, seb->pnum = pnum; seb->scrub = ((cmp_res & 2) || bitflips); seb->sqnum = sqnum; - seb->leb_ver = leb_ver; if (sv->highest_lnum == lnum) sv->last_data_size = @@ -540,7 +506,6 @@ int ubi_scan_add_used(struct ubi_device *ubi, struct ubi_scan_info *si, seb->lnum = lnum; seb->sqnum = sqnum; seb->scrub = bitflips; - seb->leb_ver = leb_ver; if (sv->highest_lnum <= lnum) { sv->highest_lnum = lnum; @@ -554,8 +519,7 @@ int ubi_scan_add_used(struct ubi_device *ubi, struct ubi_scan_info *si, } /** - * ubi_scan_find_sv - find information about a particular volume in the - * scanning information. + * ubi_scan_find_sv - find volume in the scanning information. * @si: scanning information * @vol_id: the requested volume ID * @@ -584,8 +548,7 @@ struct ubi_scan_volume *ubi_scan_find_sv(const struct ubi_scan_info *si, } /** - * ubi_scan_find_seb - find information about a particular logical - * eraseblock in the volume scanning information. + * ubi_scan_find_seb - find LEB in the volume scanning information. * @sv: a pointer to the volume scanning information * @lnum: the requested logical eraseblock * @@ -645,9 +608,9 @@ void ubi_scan_rm_volume(struct ubi_scan_info *si, struct ubi_scan_volume *sv) * * This function erases physical eraseblock 'pnum', and writes the erase * counter header to it. This function should only be used on UBI device - * initialization stages, when the EBA unit had not been yet initialized. This - * function returns zero in case of success and a negative error code in case - * of failure. + * initialization stages, when the EBA sub-system had not been yet initialized. + * This function returns zero in case of success and a negative error code in + * case of failure. */ int ubi_scan_erase_peb(struct ubi_device *ubi, const struct ubi_scan_info *si, int pnum, int ec) @@ -687,9 +650,10 @@ out_free: * @si: scanning information * * This function returns a free physical eraseblock. It is supposed to be - * called on the UBI initialization stages when the wear-leveling unit is not - * initialized yet. This function picks a physical eraseblocks from one of the - * lists, writes the EC header if it is needed, and removes it from the list. + * called on the UBI initialization stages when the wear-leveling sub-system is + * not initialized yet. This function picks a physical eraseblocks from one of + * the lists, writes the EC header if it is needed, and removes it from the + * list. * * This function returns scanning physical eraseblock information in case of * success and an error code in case of failure. @@ -742,8 +706,7 @@ struct ubi_scan_leb *ubi_scan_get_free_peb(struct ubi_device *ubi, } /** - * process_eb - read UBI headers, check them and add corresponding data - * to the scanning information. + * process_eb - read, check UBI headers, and add them to scanning information. * @ubi: UBI device description object * @si: scanning information * @pnum: the physical eraseblock number @@ -751,7 +714,8 @@ struct ubi_scan_leb *ubi_scan_get_free_peb(struct ubi_device *ubi, * This function returns a zero if the physical eraseblock was successfully * handled and a negative error code in case of failure. */ -static int process_eb(struct ubi_device *ubi, struct ubi_scan_info *si, int pnum) +static int process_eb(struct ubi_device *ubi, struct ubi_scan_info *si, + int pnum) { long long uninitialized_var(ec); int err, bitflips = 0, vol_id, ec_corr = 0; @@ -764,8 +728,9 @@ static int process_eb(struct ubi_device *ubi, struct ubi_scan_info *si, int pnum return err; else if (err) { /* - * FIXME: this is actually duty of the I/O unit to initialize - * this, but MTD does not provide enough information. + * FIXME: this is actually duty of the I/O sub-system to + * initialize this, but MTD does not provide enough + * information. */ si->bad_peb_count += 1; return 0; @@ -930,7 +895,7 @@ struct ubi_scan_info *ubi_scan(struct ubi_device *ubi) for (pnum = 0; pnum < ubi->peb_count; pnum++) { cond_resched(); - dbg_msg("process PEB %d", pnum); + dbg_gen("process PEB %d", pnum); err = process_eb(ubi, si, pnum); if (err < 0) goto out_vidh; @@ -1079,8 +1044,7 @@ void ubi_scan_destroy_si(struct ubi_scan_info *si) #ifdef CONFIG_MTD_UBI_DEBUG_PARANOID /** - * paranoid_check_si - check if the scanning information is correct and - * consistent. + * paranoid_check_si - check the scanning information. * @ubi: UBI device description object * @si: scanning information * @@ -1265,11 +1229,6 @@ static int paranoid_check_si(struct ubi_device *ubi, struct ubi_scan_info *si) ubi_err("bad data_pad %d", sv->data_pad); goto bad_vid_hdr; } - - if (seb->leb_ver != be32_to_cpu(vidh->leb_ver)) { - ubi_err("bad leb_ver %u", seb->leb_ver); - goto bad_vid_hdr; - } } if (!last_seb) @@ -1299,8 +1258,7 @@ static int paranoid_check_si(struct ubi_device *ubi, struct ubi_scan_info *si) if (err < 0) { kfree(buf); return err; - } - else if (err) + } else if (err) buf[pnum] = 1; } diff --git a/drivers/mtd/ubi/scan.h b/drivers/mtd/ubi/scan.h index 966b9b6..61df208 100644 --- a/drivers/mtd/ubi/scan.h +++ b/drivers/mtd/ubi/scan.h @@ -34,7 +34,6 @@ * @u: unions RB-tree or @list links * @u.rb: link in the per-volume RB-tree of &struct ubi_scan_leb objects * @u.list: link in one of the eraseblock lists - * @leb_ver: logical eraseblock version (obsolete) * * One object of this type is allocated for each physical eraseblock during * scanning. @@ -49,7 +48,6 @@ struct ubi_scan_leb { struct rb_node rb; struct list_head list; } u; - uint32_t leb_ver; }; /** @@ -59,16 +57,16 @@ struct ubi_scan_leb { * @leb_count: number of logical eraseblocks in this volume * @vol_type: volume type * @used_ebs: number of used logical eraseblocks in this volume (only for - * static volumes) + * static volumes) * @last_data_size: amount of data in the last logical eraseblock of this - * volume (always equivalent to the usable logical eraseblock size in case of - * dynamic volumes) + * volume (always equivalent to the usable logical eraseblock + * size in case of dynamic volumes) * @data_pad: how many bytes at the end of logical eraseblocks of this volume - * are not used (due to volume alignment) + * are not used (due to volume alignment) * @compat: compatibility flags of this volume * @rb: link in the volume RB-tree * @root: root of the RB-tree containing all the eraseblock belonging to this - * volume (&struct ubi_scan_leb objects) + * volume (&struct ubi_scan_leb objects) * * One object of this type is allocated for each volume during scanning. */ @@ -92,8 +90,8 @@ struct ubi_scan_volume { * @free: list of free physical eraseblocks * @erase: list of physical eraseblocks which have to be erased * @alien: list of physical eraseblocks which should not be used by UBI (e.g., + * those belonging to "preserve"-compatible internal volumes) * @bad_peb_count: count of bad physical eraseblocks - * those belonging to "preserve"-compatible internal volumes) * @vols_found: number of volumes found during scanning * @highest_vol_id: highest volume ID * @alien_peb_count: count of physical eraseblocks in the @alien list @@ -106,8 +104,8 @@ struct ubi_scan_volume { * @ec_count: a temporary variable used when calculating @mean_ec * * This data structure contains the result of scanning and may be used by other - * UBI units to build final UBI data structures, further error-recovery and so - * on. + * UBI sub-systems to build final UBI data structures, further error-recovery + * and so on. */ struct ubi_scan_info { struct rb_root volumes; @@ -132,8 +130,7 @@ struct ubi_device; struct ubi_vid_hdr; /* - * ubi_scan_move_to_list - move a physical eraseblock from the volume tree to a - * list. + * ubi_scan_move_to_list - move a PEB from the volume tree to a list. * * @sv: volume scanning information * @seb: scanning eraseblock infprmation diff --git a/drivers/mtd/ubi/ubi-media.h b/drivers/mtd/ubi/ubi-media.h index c3185d9..2ad9404 100644 --- a/drivers/mtd/ubi/ubi-media.h +++ b/drivers/mtd/ubi/ubi-media.h @@ -98,10 +98,11 @@ enum { * Compatibility constants used by internal volumes. * * @UBI_COMPAT_DELETE: delete this internal volume before anything is written - * to the flash + * to the flash * @UBI_COMPAT_RO: attach this device in read-only mode * @UBI_COMPAT_PRESERVE: preserve this internal volume - do not touch its - * physical eraseblocks, don't allow the wear-leveling unit to move them + * physical eraseblocks, don't allow the wear-leveling + * sub-system to move them * @UBI_COMPAT_REJECT: reject this UBI image */ enum { @@ -123,7 +124,7 @@ enum { * struct ubi_ec_hdr - UBI erase counter header. * @magic: erase counter header magic number (%UBI_EC_HDR_MAGIC) * @version: version of UBI implementation which is supposed to accept this - * UBI image + * UBI image * @padding1: reserved for future, zeroes * @ec: the erase counter * @vid_hdr_offset: where the VID header starts @@ -159,24 +160,23 @@ struct ubi_ec_hdr { * struct ubi_vid_hdr - on-flash UBI volume identifier header. * @magic: volume identifier header magic number (%UBI_VID_HDR_MAGIC) * @version: UBI implementation version which is supposed to accept this UBI - * image (%UBI_VERSION) + * image (%UBI_VERSION) * @vol_type: volume type (%UBI_VID_DYNAMIC or %UBI_VID_STATIC) * @copy_flag: if this logical eraseblock was copied from another physical - * eraseblock (for wear-leveling reasons) + * eraseblock (for wear-leveling reasons) * @compat: compatibility of this volume (%0, %UBI_COMPAT_DELETE, - * %UBI_COMPAT_IGNORE, %UBI_COMPAT_PRESERVE, or %UBI_COMPAT_REJECT) + * %UBI_COMPAT_IGNORE, %UBI_COMPAT_PRESERVE, or %UBI_COMPAT_REJECT) * @vol_id: ID of this volume * @lnum: logical eraseblock number - * @leb_ver: version of this logical eraseblock (IMPORTANT: obsolete, to be - * removed, kept only for not breaking older UBI users) + * @padding1: reserved for future, zeroes * @data_size: how many bytes of data this logical eraseblock contains * @used_ebs: total number of used logical eraseblocks in this volume * @data_pad: how many bytes at the end of this physical eraseblock are not - * used + * used * @data_crc: CRC checksum of the data stored in this logical eraseblock - * @padding1: reserved for future, zeroes - * @sqnum: sequence number * @padding2: reserved for future, zeroes + * @sqnum: sequence number + * @padding3: reserved for future, zeroes * @hdr_crc: volume identifier header CRC checksum * * The @sqnum is the value of the global sequence counter at the time when this @@ -224,10 +224,6 @@ struct ubi_ec_hdr { * checksum is correct, this physical eraseblock is selected (P1). Otherwise * the older one (P) is selected. * - * Note, there is an obsolete @leb_ver field which was used instead of @sqnum - * in the past. But it is not used anymore and we keep it in order to be able - * to deal with old UBI images. It will be removed at some point. - * * There are 2 sorts of volumes in UBI: user volumes and internal volumes. * Internal volumes are not seen from outside and are used for various internal * UBI purposes. In this implementation there is only one internal volume - the @@ -248,9 +244,9 @@ struct ubi_ec_hdr { * The @data_crc field contains the CRC checksum of the contents of the logical * eraseblock if this is a static volume. In case of dynamic volumes, it does * not contain the CRC checksum as a rule. The only exception is when the - * data of the physical eraseblock was moved by the wear-leveling unit, then - * the wear-leveling unit calculates the data CRC and stores it in the - * @data_crc field. And of course, the @copy_flag is %in this case. + * data of the physical eraseblock was moved by the wear-leveling sub-system, + * then the wear-leveling sub-system calculates the data CRC and stores it in + * the @data_crc field. And of course, the @copy_flag is %in this case. * * The @data_size field is used only for static volumes because UBI has to know * how many bytes of data are stored in this eraseblock. For dynamic volumes, @@ -277,14 +273,14 @@ struct ubi_vid_hdr { __u8 compat; __be32 vol_id; __be32 lnum; - __be32 leb_ver; /* obsolete, to be removed, don't use */ + __u8 padding1[4]; __be32 data_size; __be32 used_ebs; __be32 data_pad; __be32 data_crc; - __u8 padding1[4]; + __u8 padding2[4]; __be64 sqnum; - __u8 padding2[12]; + __u8 padding3[12]; __be32 hdr_crc; } __attribute__ ((packed)); diff --git a/drivers/mtd/ubi/ubi.h b/drivers/mtd/ubi/ubi.h index 67dcbd1..1c3fa18 100644 --- a/drivers/mtd/ubi/ubi.h +++ b/drivers/mtd/ubi/ubi.h @@ -74,15 +74,15 @@ #define UBI_IO_RETRIES 3 /* - * Error codes returned by the I/O unit. + * Error codes returned by the I/O sub-system. * * UBI_IO_PEB_EMPTY: the physical eraseblock is empty, i.e. it contains only - * 0xFF bytes + * %0xFF bytes * UBI_IO_PEB_FREE: the physical eraseblock is free, i.e. it contains only a - * valid erase counter header, and the rest are %0xFF bytes + * valid erase counter header, and the rest are %0xFF bytes * UBI_IO_BAD_EC_HDR: the erase counter header is corrupted (bad magic or CRC) * UBI_IO_BAD_VID_HDR: the volume identifier header is corrupted (bad magic or - * CRC) + * CRC) * UBI_IO_BITFLIPS: bit-flips were detected and corrected */ enum { @@ -99,9 +99,9 @@ enum { * @ec: erase counter * @pnum: physical eraseblock number * - * This data structure is used in the WL unit. Each physical eraseblock has a - * corresponding &struct wl_entry object which may be kept in different - * RB-trees. See WL unit for details. + * This data structure is used in the WL sub-system. Each physical eraseblock + * has a corresponding &struct wl_entry object which may be kept in different + * RB-trees. See WL sub-system for details. */ struct ubi_wl_entry { struct rb_node rb; @@ -118,10 +118,10 @@ struct ubi_wl_entry { * @mutex: read/write mutex to implement read/write access serialization to * the (@vol_id, @lnum) logical eraseblock * - * This data structure is used in the EBA unit to implement per-LEB locking. - * When a logical eraseblock is being locked - corresponding + * This data structure is used in the EBA sub-system to implement per-LEB + * locking. When a logical eraseblock is being locked - corresponding * &struct ubi_ltree_entry object is inserted to the lock tree (@ubi->ltree). - * See EBA unit for details. + * See EBA sub-system for details. */ struct ubi_ltree_entry { struct rb_node rb; @@ -131,6 +131,27 @@ struct ubi_ltree_entry { struct rw_semaphore mutex; }; +/** + * struct ubi_rename_entry - volume re-name description data structure. + * @new_name_len: new volume name length + * @new_name: new volume name + * @remove: if not zero, this volume should be removed, not re-named + * @desc: descriptor of the volume + * @list: links re-name entries into a list + * + * This data structure is utilized in the multiple volume re-name code. Namely, + * UBI first creates a list of &struct ubi_rename_entry objects from the + * &struct ubi_rnvol_req request object, and then utilizes this list to do all + * the job. + */ +struct ubi_rename_entry { + int new_name_len; + char new_name[UBI_VOL_NAME_MAX + 1]; + int remove; + struct ubi_volume_desc *desc; + struct list_head list; +}; + struct ubi_volume_desc; /** @@ -206,7 +227,7 @@ struct ubi_volume { int alignment; int data_pad; int name_len; - char name[UBI_VOL_NAME_MAX+1]; + char name[UBI_VOL_NAME_MAX + 1]; int upd_ebs; int ch_lnum; @@ -225,7 +246,7 @@ struct ubi_volume { #ifdef CONFIG_MTD_UBI_GLUEBI /* * Gluebi-related stuff may be compiled out. - * TODO: this should not be built into UBI but should be a separate + * Note: this should not be built into UBI but should be a separate * ubimtd driver which works on top of UBI and emulates MTD devices. */ struct ubi_volume_desc *gluebi_desc; @@ -235,8 +256,7 @@ struct ubi_volume { }; /** - * struct ubi_volume_desc - descriptor of the UBI volume returned when it is - * opened. + * struct ubi_volume_desc - UBI volume descriptor returned when it is opened. * @vol: reference to the corresponding volume description object * @mode: open mode (%UBI_READONLY, %UBI_READWRITE, or %UBI_EXCLUSIVE) */ @@ -273,7 +293,7 @@ struct ubi_wl_entry; * @vtbl_size: size of the volume table in bytes * @vtbl: in-RAM volume table copy * @volumes_mutex: protects on-flash volume table and serializes volume - * changes, like creation, deletion, update, resize + * changes, like creation, deletion, update, re-size and re-name * * @max_ec: current highest erase counter value * @mean_ec: current mean erase counter value @@ -293,6 +313,7 @@ struct ubi_wl_entry; * @move_to, @move_to_put @erase_pending, @wl_scheduled, and @works * fields * @move_mutex: serializes eraseblock moves + * @work_sem: sycnhronizes the WL worker with use tasks * @wl_scheduled: non-zero if the wear-leveling was scheduled * @lookuptbl: a table to quickly find a &struct ubi_wl_entry object for any * physical eraseblock @@ -316,11 +337,11 @@ struct ubi_wl_entry; * @ro_mode: if the UBI device is in read-only mode * @leb_size: logical eraseblock size * @leb_start: starting offset of logical eraseblocks within physical - * eraseblocks + * eraseblocks * @ec_hdr_alsize: size of the EC header aligned to @hdrs_min_io_size * @vid_hdr_alsize: size of the VID header aligned to @hdrs_min_io_size * @vid_hdr_offset: starting offset of the volume identifier header (might be - * unaligned) + * unaligned) * @vid_hdr_aloffset: starting offset of the VID header aligned to * @hdrs_min_io_size * @vid_hdr_shift: contains @vid_hdr_offset - @vid_hdr_aloffset @@ -331,6 +352,8 @@ struct ubi_wl_entry; * @peb_buf1: a buffer of PEB size used for different purposes * @peb_buf2: another buffer of PEB size used for different purposes * @buf_mutex: proptects @peb_buf1 and @peb_buf2 + * @ckvol_mutex: serializes static volume checking when opening + * @mult_mutex: serializes operations on multiple volumes, like re-nameing * @dbg_peb_buf: buffer of PEB size used for debugging * @dbg_buf_mutex: proptects @dbg_peb_buf */ @@ -356,16 +379,16 @@ struct ubi_device { struct mutex volumes_mutex; int max_ec; - /* TODO: mean_ec is not updated run-time, fix */ + /* Note, mean_ec is not updated run-time - should be fixed */ int mean_ec; - /* EBA unit's stuff */ + /* EBA sub-system's stuff */ unsigned long long global_sqnum; spinlock_t ltree_lock; struct rb_root ltree; struct mutex alc_mutex; - /* Wear-leveling unit's stuff */ + /* Wear-leveling sub-system's stuff */ struct rb_root used; struct rb_root free; struct rb_root scrub; @@ -388,7 +411,7 @@ struct ubi_device { int thread_enabled; char bgt_name[sizeof(UBI_BGT_NAME_PATTERN)+2]; - /* I/O unit's stuff */ + /* I/O sub-system's stuff */ long long flash_size; int peb_count; int peb_size; @@ -411,6 +434,7 @@ struct ubi_device { void *peb_buf2; struct mutex buf_mutex; struct mutex ckvol_mutex; + struct mutex mult_mutex; #ifdef CONFIG_MTD_UBI_DEBUG void *dbg_peb_buf; struct mutex dbg_buf_mutex; @@ -427,12 +451,15 @@ extern struct mutex ubi_devices_mutex; /* vtbl.c */ int ubi_change_vtbl_record(struct ubi_device *ubi, int idx, struct ubi_vtbl_record *vtbl_rec); +int ubi_vtbl_rename_volumes(struct ubi_device *ubi, + struct list_head *rename_list); int ubi_read_volume_table(struct ubi_device *ubi, struct ubi_scan_info *si); /* vmt.c */ int ubi_create_volume(struct ubi_device *ubi, struct ubi_mkvol_req *req); -int ubi_remove_volume(struct ubi_volume_desc *desc); +int ubi_remove_volume(struct ubi_volume_desc *desc, int no_vtbl); int ubi_resize_volume(struct ubi_volume_desc *desc, int reserved_pebs); +int ubi_rename_volumes(struct ubi_device *ubi, struct list_head *rename_list); int ubi_add_volume(struct ubi_device *ubi, struct ubi_volume *vol); void ubi_free_volume(struct ubi_device *ubi, struct ubi_volume *vol); @@ -447,7 +474,8 @@ int ubi_more_leb_change_data(struct ubi_device *ubi, struct ubi_volume *vol, const void __user *buf, int count); /* misc.c */ -int ubi_calc_data_len(const struct ubi_device *ubi, const void *buf, int length); +int ubi_calc_data_len(const struct ubi_device *ubi, const void *buf, + int length); int ubi_check_volume(struct ubi_device *ubi, int vol_id); void ubi_calculate_reserved(struct ubi_device *ubi); @@ -477,7 +505,6 @@ int ubi_eba_atomic_leb_change(struct ubi_device *ubi, struct ubi_volume *vol, int ubi_eba_copy_leb(struct ubi_device *ubi, int from, int to, struct ubi_vid_hdr *vid_hdr); int ubi_eba_init_scan(struct ubi_device *ubi, struct ubi_scan_info *si); -void ubi_eba_close(const struct ubi_device *ubi); /* wl.c */ int ubi_wl_get_peb(struct ubi_device *ubi, int dtype); diff --git a/drivers/mtd/ubi/upd.c b/drivers/mtd/ubi/upd.c index ddaa1a5..8b89cc1 100644 --- a/drivers/mtd/ubi/upd.c +++ b/drivers/mtd/ubi/upd.c @@ -39,7 +39,7 @@ */ #include <linux/err.h> -#include <asm/uaccess.h> +#include <linux/uaccess.h> #include <asm/div64.h> #include "ubi.h" @@ -56,11 +56,11 @@ static int set_update_marker(struct ubi_device *ubi, struct ubi_volume *vol) int err; struct ubi_vtbl_record vtbl_rec; - dbg_msg("set update marker for volume %d", vol->vol_id); + dbg_gen("set update marker for volume %d", vol->vol_id); if (vol->upd_marker) { ubi_assert(ubi->vtbl[vol->vol_id].upd_marker); - dbg_msg("already set"); + dbg_gen("already set"); return 0; } @@ -92,7 +92,7 @@ static int clear_update_marker(struct ubi_device *ubi, struct ubi_volume *vol, uint64_t tmp; struct ubi_vtbl_record vtbl_rec; - dbg_msg("clear update marker for volume %d", vol->vol_id); + dbg_gen("clear update marker for volume %d", vol->vol_id); memcpy(&vtbl_rec, &ubi->vtbl[vol->vol_id], sizeof(struct ubi_vtbl_record)); @@ -133,7 +133,7 @@ int ubi_start_update(struct ubi_device *ubi, struct ubi_volume *vol, int i, err; uint64_t tmp; - dbg_msg("start update of volume %d, %llu bytes", vol->vol_id, bytes); + dbg_gen("start update of volume %d, %llu bytes", vol->vol_id, bytes); ubi_assert(!vol->updating && !vol->changing_leb); vol->updating = 1; @@ -183,7 +183,7 @@ int ubi_start_leb_change(struct ubi_device *ubi, struct ubi_volume *vol, { ubi_assert(!vol->updating && !vol->changing_leb); - dbg_msg("start changing LEB %d:%d, %u bytes", + dbg_gen("start changing LEB %d:%d, %u bytes", vol->vol_id, req->lnum, req->bytes); if (req->bytes == 0) return ubi_eba_atomic_leb_change(ubi, vol, req->lnum, NULL, 0, @@ -237,16 +237,17 @@ static int write_leb(struct ubi_device *ubi, struct ubi_volume *vol, int lnum, int err; if (vol->vol_type == UBI_DYNAMIC_VOLUME) { - len = ALIGN(len, ubi->min_io_size); - memset(buf + len, 0xFF, len - len); + int l = ALIGN(len, ubi->min_io_size); - len = ubi_calc_data_len(ubi, buf, len); + memset(buf + len, 0xFF, l - len); + len = ubi_calc_data_len(ubi, buf, l); if (len == 0) { - dbg_msg("all %d bytes contain 0xFF - skip", len); + dbg_gen("all %d bytes contain 0xFF - skip", len); return 0; } - err = ubi_eba_write_leb(ubi, vol, lnum, buf, 0, len, UBI_UNKNOWN); + err = ubi_eba_write_leb(ubi, vol, lnum, buf, 0, len, + UBI_UNKNOWN); } else { /* * When writing static volume, and this is the last logical @@ -267,6 +268,7 @@ static int write_leb(struct ubi_device *ubi, struct ubi_volume *vol, int lnum, /** * ubi_more_update_data - write more update data. + * @ubi: UBI device description object * @vol: volume description object * @buf: write data (user-space memory buffer) * @count: how much bytes to write @@ -283,7 +285,7 @@ int ubi_more_update_data(struct ubi_device *ubi, struct ubi_volume *vol, uint64_t tmp; int lnum, offs, err = 0, len, to_write = count; - dbg_msg("write %d of %lld bytes, %lld already passed", + dbg_gen("write %d of %lld bytes, %lld already passed", count, vol->upd_bytes, vol->upd_received); if (ubi->ro_mode) @@ -384,6 +386,7 @@ int ubi_more_update_data(struct ubi_device *ubi, struct ubi_volume *vol, /** * ubi_more_leb_change_data - accept more data for atomic LEB change. + * @ubi: UBI device description object * @vol: volume description object * @buf: write data (user-space memory buffer) * @count: how much bytes to write @@ -400,7 +403,7 @@ int ubi_more_leb_change_data(struct ubi_device *ubi, struct ubi_volume *vol, { int err; - dbg_msg("write %d of %lld bytes, %lld already passed", + dbg_gen("write %d of %lld bytes, %lld already passed", count, vol->upd_bytes, vol->upd_received); if (ubi->ro_mode) @@ -418,7 +421,8 @@ int ubi_more_leb_change_data(struct ubi_device *ubi, struct ubi_volume *vol, if (vol->upd_received == vol->upd_bytes) { int len = ALIGN((int)vol->upd_bytes, ubi->min_io_size); - memset(vol->upd_buf + vol->upd_bytes, 0xFF, len - vol->upd_bytes); + memset(vol->upd_buf + vol->upd_bytes, 0xFF, + len - vol->upd_bytes); len = ubi_calc_data_len(ubi, vol->upd_buf, len); err = ubi_eba_atomic_leb_change(ubi, vol, vol->ch_lnum, vol->upd_buf, len, UBI_UNKNOWN); diff --git a/drivers/mtd/ubi/vmt.c b/drivers/mtd/ubi/vmt.c index 5be58d8..3531ca9 100644 --- a/drivers/mtd/ubi/vmt.c +++ b/drivers/mtd/ubi/vmt.c @@ -28,9 +28,9 @@ #include "ubi.h" #ifdef CONFIG_MTD_UBI_DEBUG_PARANOID -static void paranoid_check_volumes(struct ubi_device *ubi); +static int paranoid_check_volumes(struct ubi_device *ubi); #else -#define paranoid_check_volumes(ubi) +#define paranoid_check_volumes(ubi) 0 #endif static ssize_t vol_attribute_show(struct device *dev, @@ -127,6 +127,7 @@ static void vol_release(struct device *dev) { struct ubi_volume *vol = container_of(dev, struct ubi_volume, dev); + kfree(vol->eba_tbl); kfree(vol); } @@ -201,7 +202,7 @@ static void volume_sysfs_close(struct ubi_volume *vol) */ int ubi_create_volume(struct ubi_device *ubi, struct ubi_mkvol_req *req) { - int i, err, vol_id = req->vol_id, dont_free = 0; + int i, err, vol_id = req->vol_id, do_free = 1; struct ubi_volume *vol; struct ubi_vtbl_record vtbl_rec; uint64_t bytes; @@ -217,7 +218,7 @@ int ubi_create_volume(struct ubi_device *ubi, struct ubi_mkvol_req *req) spin_lock(&ubi->volumes_lock); if (vol_id == UBI_VOL_NUM_AUTO) { /* Find unused volume ID */ - dbg_msg("search for vacant volume ID"); + dbg_gen("search for vacant volume ID"); for (i = 0; i < ubi->vtbl_slots; i++) if (!ubi->volumes[i]) { vol_id = i; @@ -232,7 +233,7 @@ int ubi_create_volume(struct ubi_device *ubi, struct ubi_mkvol_req *req) req->vol_id = vol_id; } - dbg_msg("volume ID %d, %llu bytes, type %d, name %s", + dbg_gen("volume ID %d, %llu bytes, type %d, name %s", vol_id, (unsigned long long)req->bytes, (int)req->vol_type, req->name); @@ -252,7 +253,7 @@ int ubi_create_volume(struct ubi_device *ubi, struct ubi_mkvol_req *req) goto out_unlock; } - /* Calculate how many eraseblocks are requested */ + /* Calculate how many eraseblocks are requested */ vol->usable_leb_size = ubi->leb_size - ubi->leb_size % req->alignment; bytes = req->bytes; if (do_div(bytes, vol->usable_leb_size)) @@ -274,7 +275,7 @@ int ubi_create_volume(struct ubi_device *ubi, struct ubi_mkvol_req *req) vol->data_pad = ubi->leb_size % vol->alignment; vol->vol_type = req->vol_type; vol->name_len = req->name_len; - memcpy(vol->name, req->name, vol->name_len + 1); + memcpy(vol->name, req->name, vol->name_len); vol->ubi = ubi; /* @@ -349,7 +350,7 @@ int ubi_create_volume(struct ubi_device *ubi, struct ubi_mkvol_req *req) vtbl_rec.vol_type = UBI_VID_DYNAMIC; else vtbl_rec.vol_type = UBI_VID_STATIC; - memcpy(vtbl_rec.name, vol->name, vol->name_len + 1); + memcpy(vtbl_rec.name, vol->name, vol->name_len); err = ubi_change_vtbl_record(ubi, vol_id, &vtbl_rec); if (err) @@ -360,19 +361,19 @@ int ubi_create_volume(struct ubi_device *ubi, struct ubi_mkvol_req *req) ubi->vol_count += 1; spin_unlock(&ubi->volumes_lock); - paranoid_check_volumes(ubi); - return 0; + err = paranoid_check_volumes(ubi); + return err; out_sysfs: /* - * We have registered our device, we should not free the volume* + * We have registered our device, we should not free the volume * description object in this function in case of an error - it is * freed by the release function. * * Get device reference to prevent the release function from being * called just after sysfs has been closed. */ - dont_free = 1; + do_free = 0; get_device(&vol->dev); volume_sysfs_close(vol); out_gluebi: @@ -382,17 +383,18 @@ out_gluebi: out_cdev: cdev_del(&vol->cdev); out_mapping: - kfree(vol->eba_tbl); + if (do_free) + kfree(vol->eba_tbl); out_acc: spin_lock(&ubi->volumes_lock); ubi->rsvd_pebs -= vol->reserved_pebs; ubi->avail_pebs += vol->reserved_pebs; out_unlock: spin_unlock(&ubi->volumes_lock); - if (dont_free) - put_device(&vol->dev); - else + if (do_free) kfree(vol); + else + put_device(&vol->dev); ubi_err("cannot create volume %d, error %d", vol_id, err); return err; } @@ -400,19 +402,20 @@ out_unlock: /** * ubi_remove_volume - remove volume. * @desc: volume descriptor + * @no_vtbl: do not change volume table if not zero * * This function removes volume described by @desc. The volume has to be opened * in "exclusive" mode. Returns zero in case of success and a negative error * code in case of failure. The caller has to have the @ubi->volumes_mutex * locked. */ -int ubi_remove_volume(struct ubi_volume_desc *desc) +int ubi_remove_volume(struct ubi_volume_desc *desc, int no_vtbl) { struct ubi_volume *vol = desc->vol; struct ubi_device *ubi = vol->ubi; int i, err, vol_id = vol->vol_id, reserved_pebs = vol->reserved_pebs; - dbg_msg("remove UBI volume %d", vol_id); + dbg_gen("remove UBI volume %d", vol_id); ubi_assert(desc->mode == UBI_EXCLUSIVE); ubi_assert(vol == ubi->volumes[vol_id]); @@ -435,9 +438,11 @@ int ubi_remove_volume(struct ubi_volume_desc *desc) if (err) goto out_err; - err = ubi_change_vtbl_record(ubi, vol_id, NULL); - if (err) - goto out_err; + if (!no_vtbl) { + err = ubi_change_vtbl_record(ubi, vol_id, NULL); + if (err) + goto out_err; + } for (i = 0; i < vol->reserved_pebs; i++) { err = ubi_eba_unmap_leb(ubi, vol, i); @@ -445,8 +450,6 @@ int ubi_remove_volume(struct ubi_volume_desc *desc) goto out_err; } - kfree(vol->eba_tbl); - vol->eba_tbl = NULL; cdev_del(&vol->cdev); volume_sysfs_close(vol); @@ -465,8 +468,9 @@ int ubi_remove_volume(struct ubi_volume_desc *desc) ubi->vol_count -= 1; spin_unlock(&ubi->volumes_lock); - paranoid_check_volumes(ubi); - return 0; + if (!no_vtbl) + err = paranoid_check_volumes(ubi); + return err; out_err: ubi_err("cannot remove volume %d, error %d", vol_id, err); @@ -497,7 +501,7 @@ int ubi_resize_volume(struct ubi_volume_desc *desc, int reserved_pebs) if (ubi->ro_mode) return -EROFS; - dbg_msg("re-size volume %d to from %d to %d PEBs", + dbg_gen("re-size volume %d to from %d to %d PEBs", vol_id, vol->reserved_pebs, reserved_pebs); if (vol->vol_type == UBI_STATIC_VOLUME && @@ -586,8 +590,8 @@ int ubi_resize_volume(struct ubi_volume_desc *desc, int reserved_pebs) (long long)vol->used_ebs * vol->usable_leb_size; } - paranoid_check_volumes(ubi); - return 0; + err = paranoid_check_volumes(ubi); + return err; out_acc: if (pebs > 0) { @@ -602,6 +606,44 @@ out_free: } /** + * ubi_rename_volumes - re-name UBI volumes. + * @ubi: UBI device description object + * @rename_list: list of &struct ubi_rename_entry objects + * + * This function re-names or removes volumes specified in the re-name list. + * Returns zero in case of success and a negative error code in case of + * failure. + */ +int ubi_rename_volumes(struct ubi_device *ubi, struct list_head *rename_list) +{ + int err; + struct ubi_rename_entry *re; + + err = ubi_vtbl_rename_volumes(ubi, rename_list); + if (err) + return err; + + list_for_each_entry(re, rename_list, list) { + if (re->remove) { + err = ubi_remove_volume(re->desc, 1); + if (err) + break; + } else { + struct ubi_volume *vol = re->desc->vol; + + spin_lock(&ubi->volumes_lock); + vol->name_len = re->new_name_len; + memcpy(vol->name, re->new_name, re->new_name_len + 1); + spin_unlock(&ubi->volumes_lock); + } + } + + if (!err) + err = paranoid_check_volumes(ubi); + return err; +} + +/** * ubi_add_volume - add volume. * @ubi: UBI device description object * @vol: volume description object @@ -615,8 +657,7 @@ int ubi_add_volume(struct ubi_device *ubi, struct ubi_volume *vol) int err, vol_id = vol->vol_id; dev_t dev; - dbg_msg("add volume %d", vol_id); - ubi_dbg_dump_vol_info(vol); + dbg_gen("add volume %d", vol_id); /* Register character device for the volume */ cdev_init(&vol->cdev, &ubi_vol_cdev_operations); @@ -650,8 +691,8 @@ int ubi_add_volume(struct ubi_device *ubi, struct ubi_volume *vol) return err; } - paranoid_check_volumes(ubi); - return 0; + err = paranoid_check_volumes(ubi); + return err; out_gluebi: err = ubi_destroy_gluebi(vol); @@ -672,7 +713,7 @@ void ubi_free_volume(struct ubi_device *ubi, struct ubi_volume *vol) { int err; - dbg_msg("free volume %d", vol->vol_id); + dbg_gen("free volume %d", vol->vol_id); ubi->volumes[vol->vol_id] = NULL; err = ubi_destroy_gluebi(vol); @@ -686,8 +727,10 @@ void ubi_free_volume(struct ubi_device *ubi, struct ubi_volume *vol) * paranoid_check_volume - check volume information. * @ubi: UBI device description object * @vol_id: volume ID + * + * Returns zero if volume is all right and a a negative error code if not. */ -static void paranoid_check_volume(struct ubi_device *ubi, int vol_id) +static int paranoid_check_volume(struct ubi_device *ubi, int vol_id) { int idx = vol_id2idx(ubi, vol_id); int reserved_pebs, alignment, data_pad, vol_type, name_len, upd_marker; @@ -705,16 +748,7 @@ static void paranoid_check_volume(struct ubi_device *ubi, int vol_id) goto fail; } spin_unlock(&ubi->volumes_lock); - return; - } - - if (vol->exclusive) { - /* - * The volume may be being created at the moment, do not check - * it (e.g., it may be in the middle of ubi_create_volume(). - */ - spin_unlock(&ubi->volumes_lock); - return; + return 0; } if (vol->reserved_pebs < 0 || vol->alignment < 0 || vol->data_pad < 0 || @@ -727,7 +761,7 @@ static void paranoid_check_volume(struct ubi_device *ubi, int vol_id) goto fail; } - n = vol->alignment % ubi->min_io_size; + n = vol->alignment & (ubi->min_io_size - 1); if (vol->alignment != 1 && n) { ubi_err("alignment is not multiple of min I/O unit"); goto fail; @@ -824,31 +858,39 @@ static void paranoid_check_volume(struct ubi_device *ubi, int vol_id) if (alignment != vol->alignment || data_pad != vol->data_pad || upd_marker != vol->upd_marker || vol_type != vol->vol_type || - name_len!= vol->name_len || strncmp(name, vol->name, name_len)) { + name_len != vol->name_len || strncmp(name, vol->name, name_len)) { ubi_err("volume info is different"); goto fail; } spin_unlock(&ubi->volumes_lock); - return; + return 0; fail: ubi_err("paranoid check failed for volume %d", vol_id); - ubi_dbg_dump_vol_info(vol); + if (vol) + ubi_dbg_dump_vol_info(vol); ubi_dbg_dump_vtbl_record(&ubi->vtbl[vol_id], vol_id); spin_unlock(&ubi->volumes_lock); - BUG(); + return -EINVAL; } /** * paranoid_check_volumes - check information about all volumes. * @ubi: UBI device description object + * + * Returns zero if volumes are all right and a a negative error code if not. */ -static void paranoid_check_volumes(struct ubi_device *ubi) +static int paranoid_check_volumes(struct ubi_device *ubi) { - int i; + int i, err = 0; - for (i = 0; i < ubi->vtbl_slots; i++) - paranoid_check_volume(ubi, i); + for (i = 0; i < ubi->vtbl_slots; i++) { + err = paranoid_check_volume(ubi, i); + if (err) + break; + } + + return err; } #endif diff --git a/drivers/mtd/ubi/vtbl.c b/drivers/mtd/ubi/vtbl.c index af36b12b..217d0e1 100644 --- a/drivers/mtd/ubi/vtbl.c +++ b/drivers/mtd/ubi/vtbl.c @@ -115,8 +115,58 @@ int ubi_change_vtbl_record(struct ubi_device *ubi, int idx, } /** - * vtbl_check - check if volume table is not corrupted and contains sensible - * data. + * ubi_vtbl_rename_volumes - rename UBI volumes in the volume table. + * @ubi: UBI device description object + * @rename_list: list of &struct ubi_rename_entry objects + * + * This function re-names multiple volumes specified in @req in the volume + * table. Returns zero in case of success and a negative error code in case of + * failure. + */ +int ubi_vtbl_rename_volumes(struct ubi_device *ubi, + struct list_head *rename_list) +{ + int i, err; + struct ubi_rename_entry *re; + struct ubi_volume *layout_vol; + + list_for_each_entry(re, rename_list, list) { + uint32_t crc; + struct ubi_volume *vol = re->desc->vol; + struct ubi_vtbl_record *vtbl_rec = &ubi->vtbl[vol->vol_id]; + + if (re->remove) { + memcpy(vtbl_rec, &empty_vtbl_record, + sizeof(struct ubi_vtbl_record)); + continue; + } + + vtbl_rec->name_len = cpu_to_be16(re->new_name_len); + memcpy(vtbl_rec->name, re->new_name, re->new_name_len); + memset(vtbl_rec->name + re->new_name_len, 0, + UBI_VOL_NAME_MAX + 1 - re->new_name_len); + crc = crc32(UBI_CRC32_INIT, vtbl_rec, + UBI_VTBL_RECORD_SIZE_CRC); + vtbl_rec->crc = cpu_to_be32(crc); + } + + layout_vol = ubi->volumes[vol_id2idx(ubi, UBI_LAYOUT_VOLUME_ID)]; + for (i = 0; i < UBI_LAYOUT_VOLUME_EBS; i++) { + err = ubi_eba_unmap_leb(ubi, layout_vol, i); + if (err) + return err; + + err = ubi_eba_write_leb(ubi, layout_vol, i, ubi->vtbl, 0, + ubi->vtbl_size, UBI_LONGTERM); + if (err) + return err; + } + + return 0; +} + +/** + * vtbl_check - check if volume table is not corrupted and sensible. * @ubi: UBI device description object * @vtbl: volume table * @@ -127,7 +177,7 @@ static int vtbl_check(const struct ubi_device *ubi, const struct ubi_vtbl_record *vtbl) { int i, n, reserved_pebs, alignment, data_pad, vol_type, name_len; - int upd_marker; + int upd_marker, err; uint32_t crc; const char *name; @@ -153,7 +203,7 @@ static int vtbl_check(const struct ubi_device *ubi, if (reserved_pebs == 0) { if (memcmp(&vtbl[i], &empty_vtbl_record, UBI_VTBL_RECORD_SIZE)) { - dbg_err("bad empty record"); + err = 2; goto bad; } continue; @@ -161,56 +211,57 @@ static int vtbl_check(const struct ubi_device *ubi, if (reserved_pebs < 0 || alignment < 0 || data_pad < 0 || name_len < 0) { - dbg_err("negative values"); + err = 3; goto bad; } if (alignment > ubi->leb_size || alignment == 0) { - dbg_err("bad alignment"); + err = 4; goto bad; } - n = alignment % ubi->min_io_size; + n = alignment & (ubi->min_io_size - 1); if (alignment != 1 && n) { - dbg_err("alignment is not multiple of min I/O unit"); + err = 5; goto bad; } n = ubi->leb_size % alignment; if (data_pad != n) { dbg_err("bad data_pad, has to be %d", n); + err = 6; goto bad; } if (vol_type != UBI_VID_DYNAMIC && vol_type != UBI_VID_STATIC) { - dbg_err("bad vol_type"); + err = 7; goto bad; } if (upd_marker != 0 && upd_marker != 1) { - dbg_err("bad upd_marker"); + err = 8; goto bad; } if (reserved_pebs > ubi->good_peb_count) { dbg_err("too large reserved_pebs, good PEBs %d", ubi->good_peb_count); + err = 9; goto bad; } if (name_len > UBI_VOL_NAME_MAX) { - dbg_err("too long volume name, max %d", - UBI_VOL_NAME_MAX); + err = 10; goto bad; } if (name[0] == '\0') { - dbg_err("NULL volume name"); + err = 11; goto bad; } if (name_len != strnlen(name, name_len + 1)) { - dbg_err("bad name_len"); + err = 12; goto bad; } } @@ -235,7 +286,7 @@ static int vtbl_check(const struct ubi_device *ubi, return 0; bad: - ubi_err("volume table check failed, record %d", i); + ubi_err("volume table check failed: record %d, error %d", i, err); ubi_dbg_dump_vtbl_record(&vtbl[i], i); return -EINVAL; } @@ -287,7 +338,6 @@ retry: vid_hdr->data_pad = cpu_to_be32(0); vid_hdr->lnum = cpu_to_be32(copy); vid_hdr->sqnum = cpu_to_be64(++si->max_sqnum); - vid_hdr->leb_ver = cpu_to_be32(old_seb ? old_seb->leb_ver + 1: 0); /* The EC header is already there, write the VID header */ err = ubi_io_write_vid_hdr(ubi, new_seb->pnum, vid_hdr); @@ -370,7 +420,7 @@ static struct ubi_vtbl_record *process_lvol(struct ubi_device *ubi, * to LEB 0. */ - dbg_msg("check layout volume"); + dbg_gen("check layout volume"); /* Read both LEB 0 and LEB 1 into memory */ ubi_rb_for_each_entry(rb, seb, &sv->root, u.rb) { @@ -384,7 +434,16 @@ static struct ubi_vtbl_record *process_lvol(struct ubi_device *ubi, err = ubi_io_read_data(ubi, leb[seb->lnum], seb->pnum, 0, ubi->vtbl_size); if (err == UBI_IO_BITFLIPS || err == -EBADMSG) - /* Scrub the PEB later */ + /* + * Scrub the PEB later. Note, -EBADMSG indicates an + * uncorrectable ECC error, but we have our own CRC and + * the data will be checked later. If the data is OK, + * the PEB will be scrubbed (because we set + * seb->scrub). If the data is not OK, the contents of + * the PEB will be recovered from the second copy, and + * seb->scrub will be cleared in + * 'ubi_scan_add_used()'. + */ seb->scrub = 1; else if (err) goto out_free; @@ -400,7 +459,8 @@ static struct ubi_vtbl_record *process_lvol(struct ubi_device *ubi, if (!leb_corrupted[0]) { /* LEB 0 is OK */ if (leb[1]) - leb_corrupted[1] = memcmp(leb[0], leb[1], ubi->vtbl_size); + leb_corrupted[1] = memcmp(leb[0], leb[1], + ubi->vtbl_size); if (leb_corrupted[1]) { ubi_warn("volume table copy #2 is corrupted"); err = create_vtbl(ubi, si, 1, leb[0]); @@ -620,30 +680,32 @@ static int init_volumes(struct ubi_device *ubi, const struct ubi_scan_info *si, static int check_sv(const struct ubi_volume *vol, const struct ubi_scan_volume *sv) { + int err; + if (sv->highest_lnum >= vol->reserved_pebs) { - dbg_err("bad highest_lnum"); + err = 1; goto bad; } if (sv->leb_count > vol->reserved_pebs) { - dbg_err("bad leb_count"); + err = 2; goto bad; } if (sv->vol_type != vol->vol_type) { - dbg_err("bad vol_type"); + err = 3; goto bad; } if (sv->used_ebs > vol->reserved_pebs) { - dbg_err("bad used_ebs"); + err = 4; goto bad; } if (sv->data_pad != vol->data_pad) { - dbg_err("bad data_pad"); + err = 5; goto bad; } return 0; bad: - ubi_err("bad scanning information"); + ubi_err("bad scanning information, error %d", err); ubi_dbg_dump_sv(sv); ubi_dbg_dump_vol_info(vol); return -EINVAL; @@ -672,14 +734,13 @@ static int check_scanning_info(const struct ubi_device *ubi, return -EINVAL; } - if (si->highest_vol_id >= ubi->vtbl_slots + UBI_INT_VOL_COUNT&& + if (si->highest_vol_id >= ubi->vtbl_slots + UBI_INT_VOL_COUNT && si->highest_vol_id < UBI_INTERNAL_VOL_START) { ubi_err("too large volume ID %d found by scanning", si->highest_vol_id); return -EINVAL; } - for (i = 0; i < ubi->vtbl_slots + UBI_INT_VOL_COUNT; i++) { cond_resched(); @@ -717,8 +778,7 @@ static int check_scanning_info(const struct ubi_device *ubi, } /** - * ubi_read_volume_table - read volume table. - * information. + * ubi_read_volume_table - read the volume table. * @ubi: UBI device description object * @si: scanning information * @@ -797,11 +857,10 @@ int ubi_read_volume_table(struct ubi_device *ubi, struct ubi_scan_info *si) out_free: vfree(ubi->vtbl); - for (i = 0; i < ubi->vtbl_slots + UBI_INT_VOL_COUNT; i++) - if (ubi->volumes[i]) { - kfree(ubi->volumes[i]); - ubi->volumes[i] = NULL; - } + for (i = 0; i < ubi->vtbl_slots + UBI_INT_VOL_COUNT; i++) { + kfree(ubi->volumes[i]); + ubi->volumes[i] = NULL; + } return err; } diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c index a471a49..05d7093 100644 --- a/drivers/mtd/ubi/wl.c +++ b/drivers/mtd/ubi/wl.c @@ -19,22 +19,22 @@ */ /* - * UBI wear-leveling unit. + * UBI wear-leveling sub-system. * - * This unit is responsible for wear-leveling. It works in terms of physical - * eraseblocks and erase counters and knows nothing about logical eraseblocks, - * volumes, etc. From this unit's perspective all physical eraseblocks are of - * two types - used and free. Used physical eraseblocks are those that were - * "get" by the 'ubi_wl_get_peb()' function, and free physical eraseblocks are - * those that were put by the 'ubi_wl_put_peb()' function. + * This sub-system is responsible for wear-leveling. It works in terms of + * physical* eraseblocks and erase counters and knows nothing about logical + * eraseblocks, volumes, etc. From this sub-system's perspective all physical + * eraseblocks are of two types - used and free. Used physical eraseblocks are + * those that were "get" by the 'ubi_wl_get_peb()' function, and free physical + * eraseblocks are those that were put by the 'ubi_wl_put_peb()' function. * * Physical eraseblocks returned by 'ubi_wl_get_peb()' have only erase counter - * header. The rest of the physical eraseblock contains only 0xFF bytes. + * header. The rest of the physical eraseblock contains only %0xFF bytes. * - * When physical eraseblocks are returned to the WL unit by means of the + * When physical eraseblocks are returned to the WL sub-system by means of the * 'ubi_wl_put_peb()' function, they are scheduled for erasure. The erasure is * done asynchronously in context of the per-UBI device background thread, - * which is also managed by the WL unit. + * which is also managed by the WL sub-system. * * The wear-leveling is ensured by means of moving the contents of used * physical eraseblocks with low erase counter to free physical eraseblocks @@ -43,34 +43,36 @@ * The 'ubi_wl_get_peb()' function accepts data type hints which help to pick * an "optimal" physical eraseblock. For example, when it is known that the * physical eraseblock will be "put" soon because it contains short-term data, - * the WL unit may pick a free physical eraseblock with low erase counter, and - * so forth. + * the WL sub-system may pick a free physical eraseblock with low erase + * counter, and so forth. * - * If the WL unit fails to erase a physical eraseblock, it marks it as bad. + * If the WL sub-system fails to erase a physical eraseblock, it marks it as + * bad. * - * This unit is also responsible for scrubbing. If a bit-flip is detected in a - * physical eraseblock, it has to be moved. Technically this is the same as - * moving it for wear-leveling reasons. + * This sub-system is also responsible for scrubbing. If a bit-flip is detected + * in a physical eraseblock, it has to be moved. Technically this is the same + * as moving it for wear-leveling reasons. * - * As it was said, for the UBI unit all physical eraseblocks are either "free" - * or "used". Free eraseblock are kept in the @wl->free RB-tree, while used - * eraseblocks are kept in a set of different RB-trees: @wl->used, + * As it was said, for the UBI sub-system all physical eraseblocks are either + * "free" or "used". Free eraseblock are kept in the @wl->free RB-tree, while + * used eraseblocks are kept in a set of different RB-trees: @wl->used, * @wl->prot.pnum, @wl->prot.aec, and @wl->scrub. * * Note, in this implementation, we keep a small in-RAM object for each physical * eraseblock. This is surely not a scalable solution. But it appears to be good * enough for moderately large flashes and it is simple. In future, one may - * re-work this unit and make it more scalable. + * re-work this sub-system and make it more scalable. * - * At the moment this unit does not utilize the sequence number, which was - * introduced relatively recently. But it would be wise to do this because the - * sequence number of a logical eraseblock characterizes how old is it. For + * At the moment this sub-system does not utilize the sequence number, which + * was introduced relatively recently. But it would be wise to do this because + * the sequence number of a logical eraseblock characterizes how old is it. For * example, when we move a PEB with low erase counter, and we need to pick the * target PEB, we pick a PEB with the highest EC if our PEB is "old" and we * pick target PEB with an average EC if our PEB is not very "old". This is a - * room for future re-works of the WL unit. + * room for future re-works of the WL sub-system. * - * FIXME: looks too complex, should be simplified (later). + * Note: the stuff with protection trees looks too complex and is difficult to + * understand. Should be fixed. */ #include <linux/slab.h> @@ -92,20 +94,21 @@ /* * Maximum difference between two erase counters. If this threshold is - * exceeded, the WL unit starts moving data from used physical eraseblocks with - * low erase counter to free physical eraseblocks with high erase counter. + * exceeded, the WL sub-system starts moving data from used physical + * eraseblocks with low erase counter to free physical eraseblocks with high + * erase counter. */ #define UBI_WL_THRESHOLD CONFIG_MTD_UBI_WL_THRESHOLD /* - * When a physical eraseblock is moved, the WL unit has to pick the target + * When a physical eraseblock is moved, the WL sub-system has to pick the target * physical eraseblock to move to. The simplest way would be just to pick the * one with the highest erase counter. But in certain workloads this could lead * to an unlimited wear of one or few physical eraseblock. Indeed, imagine a * situation when the picked physical eraseblock is constantly erased after the * data is written to it. So, we have a constant which limits the highest erase - * counter of the free physical eraseblock to pick. Namely, the WL unit does - * not pick eraseblocks with erase counter greater then the lowest erase + * counter of the free physical eraseblock to pick. Namely, the WL sub-system + * does not pick eraseblocks with erase counter greater then the lowest erase * counter plus %WL_FREE_MAX_DIFF. */ #define WL_FREE_MAX_DIFF (2*UBI_WL_THRESHOLD) @@ -123,11 +126,11 @@ * @abs_ec: the absolute erase counter value when the protection ends * @e: the wear-leveling entry of the physical eraseblock under protection * - * When the WL unit returns a physical eraseblock, the physical eraseblock is - * protected from being moved for some "time". For this reason, the physical - * eraseblock is not directly moved from the @wl->free tree to the @wl->used - * tree. There is one more tree in between where this physical eraseblock is - * temporarily stored (@wl->prot). + * When the WL sub-system returns a physical eraseblock, the physical + * eraseblock is protected from being moved for some "time". For this reason, + * the physical eraseblock is not directly moved from the @wl->free tree to the + * @wl->used tree. There is one more tree in between where this physical + * eraseblock is temporarily stored (@wl->prot). * * All this protection stuff is needed because: * o we don't want to move physical eraseblocks just after we have given them @@ -175,7 +178,6 @@ struct ubi_wl_prot_entry { * @list: a link in the list of pending works * @func: worker function * @priv: private data of the worker function - * * @e: physical eraseblock to erase * @torture: if the physical eraseblock has to be tortured * @@ -473,52 +475,47 @@ retry: } switch (dtype) { - case UBI_LONGTERM: - /* - * For long term data we pick a physical eraseblock - * with high erase counter. But the highest erase - * counter we can pick is bounded by the the lowest - * erase counter plus %WL_FREE_MAX_DIFF. - */ - e = find_wl_entry(&ubi->free, WL_FREE_MAX_DIFF); - protect = LT_PROTECTION; - break; - case UBI_UNKNOWN: - /* - * For unknown data we pick a physical eraseblock with - * medium erase counter. But we by no means can pick a - * physical eraseblock with erase counter greater or - * equivalent than the lowest erase counter plus - * %WL_FREE_MAX_DIFF. - */ - first = rb_entry(rb_first(&ubi->free), - struct ubi_wl_entry, rb); - last = rb_entry(rb_last(&ubi->free), - struct ubi_wl_entry, rb); + case UBI_LONGTERM: + /* + * For long term data we pick a physical eraseblock with high + * erase counter. But the highest erase counter we can pick is + * bounded by the the lowest erase counter plus + * %WL_FREE_MAX_DIFF. + */ + e = find_wl_entry(&ubi->free, WL_FREE_MAX_DIFF); + protect = LT_PROTECTION; + break; + case UBI_UNKNOWN: + /* + * For unknown data we pick a physical eraseblock with medium + * erase counter. But we by no means can pick a physical + * eraseblock with erase counter greater or equivalent than the + * lowest erase counter plus %WL_FREE_MAX_DIFF. + */ + first = rb_entry(rb_first(&ubi->free), struct ubi_wl_entry, rb); + last = rb_entry(rb_last(&ubi->free), struct ubi_wl_entry, rb); - if (last->ec - first->ec < WL_FREE_MAX_DIFF) - e = rb_entry(ubi->free.rb_node, - struct ubi_wl_entry, rb); - else { - medium_ec = (first->ec + WL_FREE_MAX_DIFF)/2; - e = find_wl_entry(&ubi->free, medium_ec); - } - protect = U_PROTECTION; - break; - case UBI_SHORTTERM: - /* - * For short term data we pick a physical eraseblock - * with the lowest erase counter as we expect it will - * be erased soon. - */ - e = rb_entry(rb_first(&ubi->free), - struct ubi_wl_entry, rb); - protect = ST_PROTECTION; - break; - default: - protect = 0; - e = NULL; - BUG(); + if (last->ec - first->ec < WL_FREE_MAX_DIFF) + e = rb_entry(ubi->free.rb_node, + struct ubi_wl_entry, rb); + else { + medium_ec = (first->ec + WL_FREE_MAX_DIFF)/2; + e = find_wl_entry(&ubi->free, medium_ec); + } + protect = U_PROTECTION; + break; + case UBI_SHORTTERM: + /* + * For short term data we pick a physical eraseblock with the + * lowest erase counter as we expect it will be erased soon. + */ + e = rb_entry(rb_first(&ubi->free), struct ubi_wl_entry, rb); + protect = ST_PROTECTION; + break; + default: + protect = 0; + e = NULL; + BUG(); } /* @@ -582,7 +579,8 @@ found: * This function returns zero in case of success and a negative error code in * case of failure. */ -static int sync_erase(struct ubi_device *ubi, struct ubi_wl_entry *e, int torture) +static int sync_erase(struct ubi_device *ubi, struct ubi_wl_entry *e, + int torture) { int err; struct ubi_ec_hdr *ec_hdr; @@ -634,8 +632,7 @@ out_free: } /** - * check_protection_over - check if it is time to stop protecting some - * physical eraseblocks. + * check_protection_over - check if it is time to stop protecting some PEBs. * @ubi: UBI device description object * * This function is called after each erase operation, when the absolute erase @@ -871,6 +868,10 @@ static int wear_leveling_worker(struct ubi_device *ubi, struct ubi_work *wrk, } ubi_free_vid_hdr(ubi, vid_hdr); + if (scrubbing && !protect) + ubi_msg("scrubbed PEB %d, data moved to PEB %d", + e1->pnum, e2->pnum); + spin_lock(&ubi->wl_lock); if (protect) prot_tree_add(ubi, e1, pe, protect); @@ -1054,8 +1055,8 @@ static int erase_worker(struct ubi_device *ubi, struct ubi_work *wl_wrk, spin_unlock(&ubi->wl_lock); /* - * One more erase operation has happened, take care about protected - * physical eraseblocks. + * One more erase operation has happened, take care about + * protected physical eraseblocks. */ check_protection_over(ubi); @@ -1136,7 +1137,7 @@ out_ro: } /** - * ubi_wl_put_peb - return a physical eraseblock to the wear-leveling unit. + * ubi_wl_put_peb - return a PEB to the wear-leveling sub-system. * @ubi: UBI device description object * @pnum: physical eraseblock to return * @torture: if this physical eraseblock has to be tortured @@ -1175,11 +1176,11 @@ retry: /* * User is putting the physical eraseblock which was selected * as the target the data is moved to. It may happen if the EBA - * unit already re-mapped the LEB in 'ubi_eba_copy_leb()' but - * the WL unit has not put the PEB to the "used" tree yet, but - * it is about to do this. So we just set a flag which will - * tell the WL worker that the PEB is not needed anymore and - * should be scheduled for erasure. + * sub-system already re-mapped the LEB in 'ubi_eba_copy_leb()' + * but the WL sub-system has not put the PEB to the "used" tree + * yet, but it is about to do this. So we just set a flag which + * will tell the WL worker that the PEB is not needed anymore + * and should be scheduled for erasure. */ dbg_wl("PEB %d is the target of data moving", pnum); ubi_assert(!ubi->move_to_put); @@ -1229,7 +1230,7 @@ int ubi_wl_scrub_peb(struct ubi_device *ubi, int pnum) { struct ubi_wl_entry *e; - ubi_msg("schedule PEB %d for scrubbing", pnum); + dbg_msg("schedule PEB %d for scrubbing", pnum); retry: spin_lock(&ubi->wl_lock); @@ -1368,7 +1369,7 @@ int ubi_thread(void *u) int err; if (kthread_should_stop()) - goto out; + break; if (try_to_freeze()) continue; @@ -1403,7 +1404,6 @@ int ubi_thread(void *u) cond_resched(); } -out: dbg_wl("background thread \"%s\" is killed", ubi->bgt_name); return 0; } @@ -1426,8 +1426,7 @@ static void cancel_pending(struct ubi_device *ubi) } /** - * ubi_wl_init_scan - initialize the wear-leveling unit using scanning - * information. + * ubi_wl_init_scan - initialize the WL sub-system using scanning information. * @ubi: UBI device description object * @si: scanning information * @@ -1584,13 +1583,12 @@ static void protection_trees_destroy(struct ubi_device *ubi) } /** - * ubi_wl_close - close the wear-leveling unit. + * ubi_wl_close - close the wear-leveling sub-system. * @ubi: UBI device description object */ void ubi_wl_close(struct ubi_device *ubi) { - dbg_wl("close the UBI wear-leveling unit"); - + dbg_wl("close the WL sub-system"); cancel_pending(ubi); protection_trees_destroy(ubi); tree_destroy(&ubi->used); @@ -1602,8 +1600,7 @@ void ubi_wl_close(struct ubi_device *ubi) #ifdef CONFIG_MTD_UBI_DEBUG_PARANOID /** - * paranoid_check_ec - make sure that the erase counter of a physical eraseblock - * is correct. + * paranoid_check_ec - make sure that the erase counter of a PEB is correct. * @ubi: UBI device description object * @pnum: the physical eraseblock number to check * @ec: the erase counter to check @@ -1644,13 +1641,12 @@ out_free: } /** - * paranoid_check_in_wl_tree - make sure that a wear-leveling entry is present - * in a WL RB-tree. + * paranoid_check_in_wl_tree - check that wear-leveling entry is in WL RB-tree. * @e: the wear-leveling entry to check * @root: the root of the tree * - * This function returns zero if @e is in the @root RB-tree and %1 if it - * is not. + * This function returns zero if @e is in the @root RB-tree and %1 if it is + * not. */ static int paranoid_check_in_wl_tree(struct ubi_wl_entry *e, struct rb_root *root) diff --git a/drivers/net/arm/ep93xx_eth.c b/drivers/net/arm/ep93xx_eth.c index 7a14980..18d3eeb 100644 --- a/drivers/net/arm/ep93xx_eth.c +++ b/drivers/net/arm/ep93xx_eth.c @@ -482,7 +482,7 @@ static int ep93xx_alloc_buffers(struct ep93xx_priv *ep) goto err; d = dma_map_single(NULL, page, PAGE_SIZE, DMA_FROM_DEVICE); - if (dma_mapping_error(d)) { + if (dma_mapping_error(NULL, d)) { free_page((unsigned long)page); goto err; } @@ -505,7 +505,7 @@ static int ep93xx_alloc_buffers(struct ep93xx_priv *ep) goto err; d = dma_map_single(NULL, page, PAGE_SIZE, DMA_TO_DEVICE); - if (dma_mapping_error(d)) { + if (dma_mapping_error(NULL, d)) { free_page((unsigned long)page); goto err; } diff --git a/drivers/net/bnx2x_main.c b/drivers/net/bnx2x_main.c index 0263bef..af251a5 100644 --- a/drivers/net/bnx2x_main.c +++ b/drivers/net/bnx2x_main.c @@ -814,7 +814,7 @@ static u16 bnx2x_free_tx_pkt(struct bnx2x *bp, struct bnx2x_fastpath *fp, } /* release skb */ - BUG_TRAP(skb); + WARN_ON(!skb); dev_kfree_skb(skb); tx_buf->first_bd = 0; tx_buf->skb = NULL; @@ -837,9 +837,9 @@ static inline u16 bnx2x_tx_avail(struct bnx2x_fastpath *fp) used = SUB_S16(prod, cons) + (s16)NUM_TX_RINGS; #ifdef BNX2X_STOP_ON_ERROR - BUG_TRAP(used >= 0); - BUG_TRAP(used <= fp->bp->tx_ring_size); - BUG_TRAP((fp->bp->tx_ring_size - used) <= MAX_TX_AVAIL); + WARN_ON(used < 0); + WARN_ON(used > fp->bp->tx_ring_size); + WARN_ON((fp->bp->tx_ring_size - used) > MAX_TX_AVAIL); #endif return (s16)(fp->bp->tx_ring_size) - used; @@ -1020,7 +1020,7 @@ static inline int bnx2x_alloc_rx_sge(struct bnx2x *bp, mapping = pci_map_page(bp->pdev, page, 0, BCM_PAGE_SIZE*PAGES_PER_SGE, PCI_DMA_FROMDEVICE); - if (unlikely(dma_mapping_error(mapping))) { + if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { __free_pages(page, PAGES_PER_SGE_SHIFT); return -ENOMEM; } @@ -1048,7 +1048,7 @@ static inline int bnx2x_alloc_rx_skb(struct bnx2x *bp, mapping = pci_map_single(bp->pdev, skb->data, bp->rx_buf_use_size, PCI_DMA_FROMDEVICE); - if (unlikely(dma_mapping_error(mapping))) { + if (unlikely(dma_mapping_error(&bp->pdev->dev, mapping))) { dev_kfree_skb(skb); return -ENOMEM; } @@ -4374,7 +4374,7 @@ static void bnx2x_init_rx_rings(struct bnx2x *bp) } ring_prod = NEXT_RX_IDX(ring_prod); cqe_ring_prod = NEXT_RCQ_IDX(cqe_ring_prod); - BUG_TRAP(ring_prod > i); + WARN_ON(ring_prod <= i); } fp->rx_bd_prod = ring_prod; diff --git a/drivers/net/cassini.c b/drivers/net/cassini.c index 83768df..f1936d5 100644 --- a/drivers/net/cassini.c +++ b/drivers/net/cassini.c @@ -576,6 +576,18 @@ static void cas_spare_recover(struct cas *cp, const gfp_t flags) list_for_each_safe(elem, tmp, &list) { cas_page_t *page = list_entry(elem, cas_page_t, list); + /* + * With the lockless pagecache, cassini buffering scheme gets + * slightly less accurate: we might find that a page has an + * elevated reference count here, due to a speculative ref, + * and skip it as in-use. Ideally we would be able to reclaim + * it. However this would be such a rare case, it doesn't + * matter too much as we should pick it up the next time round. + * + * Importantly, if we find that the page has a refcount of 1 + * here (our refcount), then we know it is definitely not inuse + * so we can reuse it. + */ if (page_count(page->buffer) > 1) continue; diff --git a/drivers/net/cxgb3/sge.c b/drivers/net/cxgb3/sge.c index a96331c..1b0861d 100644 --- a/drivers/net/cxgb3/sge.c +++ b/drivers/net/cxgb3/sge.c @@ -386,7 +386,7 @@ static inline int add_one_rx_buf(void *va, unsigned int len, dma_addr_t mapping; mapping = pci_map_single(pdev, va, len, PCI_DMA_FROMDEVICE); - if (unlikely(pci_dma_mapping_error(mapping))) + if (unlikely(pci_dma_mapping_error(pdev, mapping))) return -ENOMEM; pci_unmap_addr_set(sd, dma_addr, mapping); diff --git a/drivers/net/e100.c b/drivers/net/e100.c index 1037b13..19d32a2 100644 --- a/drivers/net/e100.c +++ b/drivers/net/e100.c @@ -1790,7 +1790,7 @@ static int e100_rx_alloc_skb(struct nic *nic, struct rx *rx) rx->dma_addr = pci_map_single(nic->pdev, rx->skb->data, RFD_BUF_LEN, PCI_DMA_BIDIRECTIONAL); - if (pci_dma_mapping_error(rx->dma_addr)) { + if (pci_dma_mapping_error(nic->pdev, rx->dma_addr)) { dev_kfree_skb_any(rx->skb); rx->skb = NULL; rx->dma_addr = 0; diff --git a/drivers/net/e1000e/ethtool.c b/drivers/net/e1000e/ethtool.c index a14561f..9350564 100644 --- a/drivers/net/e1000e/ethtool.c +++ b/drivers/net/e1000e/ethtool.c @@ -1090,7 +1090,7 @@ static int e1000_setup_desc_rings(struct e1000_adapter *adapter) tx_ring->buffer_info[i].dma = pci_map_single(pdev, skb->data, skb->len, PCI_DMA_TODEVICE); - if (pci_dma_mapping_error(tx_ring->buffer_info[i].dma)) { + if (pci_dma_mapping_error(pdev, tx_ring->buffer_info[i].dma)) { ret_val = 4; goto err_nomem; } @@ -1153,7 +1153,7 @@ static int e1000_setup_desc_rings(struct e1000_adapter *adapter) rx_ring->buffer_info[i].dma = pci_map_single(pdev, skb->data, 2048, PCI_DMA_FROMDEVICE); - if (pci_dma_mapping_error(rx_ring->buffer_info[i].dma)) { + if (pci_dma_mapping_error(pdev, rx_ring->buffer_info[i].dma)) { ret_val = 8; goto err_nomem; } diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c index 869544b..d136778 100644 --- a/drivers/net/e1000e/netdev.c +++ b/drivers/net/e1000e/netdev.c @@ -195,7 +195,7 @@ map_skb: buffer_info->dma = pci_map_single(pdev, skb->data, adapter->rx_buffer_len, PCI_DMA_FROMDEVICE); - if (pci_dma_mapping_error(buffer_info->dma)) { + if (pci_dma_mapping_error(pdev, buffer_info->dma)) { dev_err(&pdev->dev, "RX DMA map failed\n"); adapter->rx_dma_failed++; break; @@ -265,7 +265,7 @@ static void e1000_alloc_rx_buffers_ps(struct e1000_adapter *adapter, ps_page->page, 0, PAGE_SIZE, PCI_DMA_FROMDEVICE); - if (pci_dma_mapping_error(ps_page->dma)) { + if (pci_dma_mapping_error(pdev, ps_page->dma)) { dev_err(&adapter->pdev->dev, "RX DMA page map failed\n"); adapter->rx_dma_failed++; @@ -300,7 +300,7 @@ static void e1000_alloc_rx_buffers_ps(struct e1000_adapter *adapter, buffer_info->dma = pci_map_single(pdev, skb->data, adapter->rx_ps_bsize0, PCI_DMA_FROMDEVICE); - if (pci_dma_mapping_error(buffer_info->dma)) { + if (pci_dma_mapping_error(pdev, buffer_info->dma)) { dev_err(&pdev->dev, "RX DMA map failed\n"); adapter->rx_dma_failed++; /* cleanup skb */ @@ -3344,7 +3344,7 @@ static int e1000_tx_map(struct e1000_adapter *adapter, skb->data + offset, size, PCI_DMA_TODEVICE); - if (pci_dma_mapping_error(buffer_info->dma)) { + if (pci_dma_mapping_error(adapter->pdev, buffer_info->dma)) { dev_err(&adapter->pdev->dev, "TX DMA map failed\n"); adapter->tx_dma_failed++; return -1; @@ -3382,7 +3382,8 @@ static int e1000_tx_map(struct e1000_adapter *adapter, offset, size, PCI_DMA_TODEVICE); - if (pci_dma_mapping_error(buffer_info->dma)) { + if (pci_dma_mapping_error(adapter->pdev, + buffer_info->dma)) { dev_err(&adapter->pdev->dev, "TX DMA page map failed\n"); adapter->tx_dma_failed++; @@ -4067,8 +4068,6 @@ static void e1000_netpoll(struct net_device *netdev) disable_irq(adapter->pdev->irq); e1000_intr(adapter->pdev->irq, netdev); - e1000_clean_tx_irq(adapter); - enable_irq(adapter->pdev->irq); } #endif diff --git a/drivers/net/fec.c b/drivers/net/fec.c index 32a4f17..ecd5c71 100644 --- a/drivers/net/fec.c +++ b/drivers/net/fec.c @@ -2,12 +2,6 @@ * Fast Ethernet Controller (FEC) driver for Motorola MPC8xx. * Copyright (c) 1997 Dan Malek (dmalek@jlc.net) * - * This version of the driver is specific to the FADS implementation, - * since the board contains control registers external to the processor - * for the control of the LevelOne LXT970 transceiver. The MPC860T manual - * describes connections using the internal parallel port I/O, which - * is basically all of Port D. - * * Right now, I am very wasteful with the buffers. I allocate memory * pages and then divide them into 2K frame buffers. This way I know I * have buffers large enough to hold one frame within one buffer descriptor. @@ -49,17 +43,9 @@ #include <asm/pgtable.h> #include <asm/cacheflush.h> -#if defined(CONFIG_M523x) || defined(CONFIG_M527x) || \ - defined(CONFIG_M5272) || defined(CONFIG_M528x) || \ - defined(CONFIG_M520x) || defined(CONFIG_M532x) #include <asm/coldfire.h> #include <asm/mcfsim.h> #include "fec.h" -#else -#include <asm/8xx_immap.h> -#include <asm/mpc8xx.h> -#include "commproc.h" -#endif #if defined(CONFIG_FEC2) #define FEC_MAX_PORTS 2 @@ -67,7 +53,7 @@ #define FEC_MAX_PORTS 1 #endif -#if defined(CONFIG_FADS) || defined(CONFIG_RPXCLASSIC) || defined(CONFIG_M5272) +#if defined(CONFIG_M5272) #define HAVE_mii_link_interrupt #endif @@ -1235,14 +1221,9 @@ static phy_info_t const * const phy_info[] = { /* ------------------------------------------------------------------------- */ #ifdef HAVE_mii_link_interrupt -#ifdef CONFIG_RPXCLASSIC -static void -mii_link_interrupt(void *dev_id); -#else static irqreturn_t mii_link_interrupt(int irq, void * dev_id); #endif -#endif #if defined(CONFIG_M5272) /* @@ -1795,24 +1776,6 @@ static void __inline__ fec_request_intrs(struct net_device *dev) if (request_8xxirq(FEC_INTERRUPT, fec_enet_interrupt, 0, "fec", dev) != 0) panic("Could not allocate FEC IRQ!"); - -#ifdef CONFIG_RPXCLASSIC - /* Make Port C, bit 15 an input that causes interrupts. - */ - immap->im_ioport.iop_pcpar &= ~0x0001; - immap->im_ioport.iop_pcdir &= ~0x0001; - immap->im_ioport.iop_pcso &= ~0x0001; - immap->im_ioport.iop_pcint |= 0x0001; - cpm_install_handler(CPMVEC_PIO_PC15, mii_link_interrupt, dev); - - /* Make LEDS reflect Link status. - */ - *((uint *) RPX_CSR_ADDR) &= ~BCSR2_FETHLEDMODE; -#endif -#ifdef CONFIG_FADS - if (request_8xxirq(SIU_IRQ2, mii_link_interrupt, 0, "mii", dev) != 0) - panic("Could not allocate MII IRQ!"); -#endif } static void __inline__ fec_get_mac(struct net_device *dev) @@ -1821,16 +1784,6 @@ static void __inline__ fec_get_mac(struct net_device *dev) bd = (bd_t *)__res; memcpy(dev->dev_addr, bd->bi_enetaddr, ETH_ALEN); - -#ifdef CONFIG_RPXCLASSIC - /* The Embedded Planet boards have only one MAC address in - * the EEPROM, but can have two Ethernet ports. For the - * FEC port, we create another address by setting one of - * the address bits above something that would have (up to - * now) been allocated. - */ - dev->dev_adrd[3] |= 0x80; -#endif } static void __inline__ fec_set_mii(struct net_device *dev, struct fec_enet_private *fep) @@ -2109,13 +2062,8 @@ mii_discover_phy(uint mii_reg, struct net_device *dev) /* This interrupt occurs when the PHY detects a link change. */ #ifdef HAVE_mii_link_interrupt -#ifdef CONFIG_RPXCLASSIC -static void -mii_link_interrupt(void *dev_id) -#else static irqreturn_t mii_link_interrupt(int irq, void * dev_id) -#endif { struct net_device *dev = dev_id; struct fec_enet_private *fep = netdev_priv(dev); diff --git a/drivers/net/ibmveth.c b/drivers/net/ibmveth.c index 0052780..91ec9fd 100644 --- a/drivers/net/ibmveth.c +++ b/drivers/net/ibmveth.c @@ -33,6 +33,7 @@ */ #include <linux/module.h> +#include <linux/moduleparam.h> #include <linux/types.h> #include <linux/errno.h> #include <linux/ioport.h> @@ -52,7 +53,9 @@ #include <asm/hvcall.h> #include <asm/atomic.h> #include <asm/vio.h> +#include <asm/iommu.h> #include <asm/uaccess.h> +#include <asm/firmware.h> #include <linux/seq_file.h> #include "ibmveth.h" @@ -94,8 +97,10 @@ static void ibmveth_proc_register_adapter(struct ibmveth_adapter *adapter); static void ibmveth_proc_unregister_adapter(struct ibmveth_adapter *adapter); static irqreturn_t ibmveth_interrupt(int irq, void *dev_instance); static void ibmveth_rxq_harvest_buffer(struct ibmveth_adapter *adapter); +static unsigned long ibmveth_get_desired_dma(struct vio_dev *vdev); static struct kobj_type ktype_veth_pool; + #ifdef CONFIG_PROC_FS #define IBMVETH_PROC_DIR "ibmveth" static struct proc_dir_entry *ibmveth_proc_dir; @@ -226,16 +231,16 @@ static void ibmveth_replenish_buffer_pool(struct ibmveth_adapter *adapter, struc u32 i; u32 count = pool->size - atomic_read(&pool->available); u32 buffers_added = 0; + struct sk_buff *skb; + unsigned int free_index, index; + u64 correlator; + unsigned long lpar_rc; + dma_addr_t dma_addr; mb(); for(i = 0; i < count; ++i) { - struct sk_buff *skb; - unsigned int free_index, index; - u64 correlator; union ibmveth_buf_desc desc; - unsigned long lpar_rc; - dma_addr_t dma_addr; skb = alloc_skb(pool->buff_size, GFP_ATOMIC); @@ -255,6 +260,9 @@ static void ibmveth_replenish_buffer_pool(struct ibmveth_adapter *adapter, struc dma_addr = dma_map_single(&adapter->vdev->dev, skb->data, pool->buff_size, DMA_FROM_DEVICE); + if (dma_mapping_error((&adapter->vdev->dev, dma_addr)) + goto failure; + pool->free_map[free_index] = IBM_VETH_INVALID_MAP; pool->dma_addr[index] = dma_addr; pool->skbuff[index] = skb; @@ -267,20 +275,9 @@ static void ibmveth_replenish_buffer_pool(struct ibmveth_adapter *adapter, struc lpar_rc = h_add_logical_lan_buffer(adapter->vdev->unit_address, desc.desc); - if(lpar_rc != H_SUCCESS) { - pool->free_map[free_index] = index; - pool->skbuff[index] = NULL; - if (pool->consumer_index == 0) - pool->consumer_index = pool->size - 1; - else - pool->consumer_index--; - dma_unmap_single(&adapter->vdev->dev, - pool->dma_addr[index], pool->buff_size, - DMA_FROM_DEVICE); - dev_kfree_skb_any(skb); - adapter->replenish_add_buff_failure++; - break; - } else { + if (lpar_rc != H_SUCCESS) + goto failure; + else { buffers_added++; adapter->replenish_add_buff_success++; } @@ -288,6 +285,24 @@ static void ibmveth_replenish_buffer_pool(struct ibmveth_adapter *adapter, struc mb(); atomic_add(buffers_added, &(pool->available)); + return; + +failure: + pool->free_map[free_index] = index; + pool->skbuff[index] = NULL; + if (pool->consumer_index == 0) + pool->consumer_index = pool->size - 1; + else + pool->consumer_index--; + if (!dma_mapping_error((&adapter->vdev->dev, dma_addr)) + dma_unmap_single(&adapter->vdev->dev, + pool->dma_addr[index], pool->buff_size, + DMA_FROM_DEVICE); + dev_kfree_skb_any(skb); + adapter->replenish_add_buff_failure++; + + mb(); + atomic_add(buffers_added, &(pool->available)); } /* replenish routine */ @@ -297,7 +312,7 @@ static void ibmveth_replenish_task(struct ibmveth_adapter *adapter) adapter->replenish_task_cycles++; - for(i = 0; i < IbmVethNumBufferPools; i++) + for (i = (IbmVethNumBufferPools - 1); i >= 0; i--) if(adapter->rx_buff_pool[i].active) ibmveth_replenish_buffer_pool(adapter, &adapter->rx_buff_pool[i]); @@ -433,11 +448,11 @@ static void ibmveth_rxq_harvest_buffer(struct ibmveth_adapter *adapter) static void ibmveth_cleanup(struct ibmveth_adapter *adapter) { int i; + struct device *dev = &adapter->vdev->dev; if(adapter->buffer_list_addr != NULL) { - if(!dma_mapping_error(adapter->buffer_list_dma)) { - dma_unmap_single(&adapter->vdev->dev, - adapter->buffer_list_dma, 4096, + if (!dma_mapping_error(dev, adapter->buffer_list_dma)) { + dma_unmap_single(dev, adapter->buffer_list_dma, 4096, DMA_BIDIRECTIONAL); adapter->buffer_list_dma = DMA_ERROR_CODE; } @@ -446,9 +461,8 @@ static void ibmveth_cleanup(struct ibmveth_adapter *adapter) } if(adapter->filter_list_addr != NULL) { - if(!dma_mapping_error(adapter->filter_list_dma)) { - dma_unmap_single(&adapter->vdev->dev, - adapter->filter_list_dma, 4096, + if (!dma_mapping_error(dev, adapter->filter_list_dma)) { + dma_unmap_single(dev, adapter->filter_list_dma, 4096, DMA_BIDIRECTIONAL); adapter->filter_list_dma = DMA_ERROR_CODE; } @@ -457,8 +471,8 @@ static void ibmveth_cleanup(struct ibmveth_adapter *adapter) } if(adapter->rx_queue.queue_addr != NULL) { - if(!dma_mapping_error(adapter->rx_queue.queue_dma)) { - dma_unmap_single(&adapter->vdev->dev, + if (!dma_mapping_error(dev, adapter->rx_queue.queue_dma)) { + dma_unmap_single(dev, adapter->rx_queue.queue_dma, adapter->rx_queue.queue_len, DMA_BIDIRECTIONAL); @@ -472,6 +486,18 @@ static void ibmveth_cleanup(struct ibmveth_adapter *adapter) if (adapter->rx_buff_pool[i].active) ibmveth_free_buffer_pool(adapter, &adapter->rx_buff_pool[i]); + + if (adapter->bounce_buffer != NULL) { + if (!dma_mapping_error(adapter->bounce_buffer_dma)) { + dma_unmap_single(&adapter->vdev->dev, + adapter->bounce_buffer_dma, + adapter->netdev->mtu + IBMVETH_BUFF_OH, + DMA_BIDIRECTIONAL); + adapter->bounce_buffer_dma = DMA_ERROR_CODE; + } + kfree(adapter->bounce_buffer); + adapter->bounce_buffer = NULL; + } } static int ibmveth_register_logical_lan(struct ibmveth_adapter *adapter, @@ -508,6 +534,7 @@ static int ibmveth_open(struct net_device *netdev) int rc; union ibmveth_buf_desc rxq_desc; int i; + struct device *dev; ibmveth_debug_printk("open starting\n"); @@ -536,17 +563,19 @@ static int ibmveth_open(struct net_device *netdev) return -ENOMEM; } - adapter->buffer_list_dma = dma_map_single(&adapter->vdev->dev, + dev = &adapter->vdev->dev; + + adapter->buffer_list_dma = dma_map_single(dev, adapter->buffer_list_addr, 4096, DMA_BIDIRECTIONAL); - adapter->filter_list_dma = dma_map_single(&adapter->vdev->dev, + adapter->filter_list_dma = dma_map_single(dev, adapter->filter_list_addr, 4096, DMA_BIDIRECTIONAL); - adapter->rx_queue.queue_dma = dma_map_single(&adapter->vdev->dev, + adapter->rx_queue.queue_dma = dma_map_single(dev, adapter->rx_queue.queue_addr, adapter->rx_queue.queue_len, DMA_BIDIRECTIONAL); - if((dma_mapping_error(adapter->buffer_list_dma) ) || - (dma_mapping_error(adapter->filter_list_dma)) || - (dma_mapping_error(adapter->rx_queue.queue_dma))) { + if ((dma_mapping_error(dev, adapter->buffer_list_dma)) || + (dma_mapping_error(dev, adapter->filter_list_dma)) || + (dma_mapping_error(dev, adapter->rx_queue.queue_dma))) { ibmveth_error_printk("unable to map filter or buffer list pages\n"); ibmveth_cleanup(adapter); napi_disable(&adapter->napi); @@ -607,6 +636,24 @@ static int ibmveth_open(struct net_device *netdev) return rc; } + adapter->bounce_buffer = + kmalloc(netdev->mtu + IBMVETH_BUFF_OH, GFP_KERNEL); + if (!adapter->bounce_buffer) { + ibmveth_error_printk("unable to allocate bounce buffer\n"); + ibmveth_cleanup(adapter); + napi_disable(&adapter->napi); + return -ENOMEM; + } + adapter->bounce_buffer_dma = + dma_map_single(&adapter->vdev->dev, adapter->bounce_buffer, + netdev->mtu + IBMVETH_BUFF_OH, DMA_BIDIRECTIONAL); + if (dma_mapping_error(dev, adapter->bounce_buffer_dma)) { + ibmveth_error_printk("unable to map bounce buffer\n"); + ibmveth_cleanup(adapter); + napi_disable(&adapter->napi); + return -ENOMEM; + } + ibmveth_debug_printk("initial replenish cycle\n"); ibmveth_interrupt(netdev->irq, netdev); @@ -853,10 +900,12 @@ static int ibmveth_start_xmit(struct sk_buff *skb, struct net_device *netdev) unsigned int tx_packets = 0; unsigned int tx_send_failed = 0; unsigned int tx_map_failed = 0; + int used_bounce = 0; + unsigned long data_dma_addr; desc.fields.flags_len = IBMVETH_BUF_VALID | skb->len; - desc.fields.address = dma_map_single(&adapter->vdev->dev, skb->data, - skb->len, DMA_TO_DEVICE); + data_dma_addr = dma_map_single(&adapter->vdev->dev, skb->data, + skb->len, DMA_TO_DEVICE); if (skb->ip_summed == CHECKSUM_PARTIAL && ip_hdr(skb)->protocol != IPPROTO_TCP && skb_checksum_help(skb)) { @@ -875,12 +924,16 @@ static int ibmveth_start_xmit(struct sk_buff *skb, struct net_device *netdev) buf[1] = 0; } - if (dma_mapping_error(desc.fields.address)) { - ibmveth_error_printk("tx: unable to map xmit buffer\n"); + if (dma_mapping_error((&adapter->vdev->dev, data_dma_addr)) { + if (!firmware_has_feature(FW_FEATURE_CMO)) + ibmveth_error_printk("tx: unable to map xmit buffer\n"); + skb_copy_from_linear_data(skb, adapter->bounce_buffer, + skb->len); + desc.fields.address = adapter->bounce_buffer_dma; tx_map_failed++; - tx_dropped++; - goto out; - } + used_bounce = 1; + } else + desc.fields.address = data_dma_addr; /* send the frame. Arbitrarily set retrycount to 1024 */ correlator = 0; @@ -904,8 +957,9 @@ static int ibmveth_start_xmit(struct sk_buff *skb, struct net_device *netdev) netdev->trans_start = jiffies; } - dma_unmap_single(&adapter->vdev->dev, desc.fields.address, - skb->len, DMA_TO_DEVICE); + if (!used_bounce) + dma_unmap_single(&adapter->vdev->dev, data_dma_addr, + skb->len, DMA_TO_DEVICE); out: spin_lock_irqsave(&adapter->stats_lock, flags); netdev->stats.tx_dropped += tx_dropped; @@ -1053,9 +1107,9 @@ static void ibmveth_set_multicast_list(struct net_device *netdev) static int ibmveth_change_mtu(struct net_device *dev, int new_mtu) { struct ibmveth_adapter *adapter = dev->priv; + struct vio_dev *viodev = adapter->vdev; int new_mtu_oh = new_mtu + IBMVETH_BUFF_OH; - int reinit = 0; - int i, rc; + int i; if (new_mtu < IBMVETH_MAX_MTU) return -EINVAL; @@ -1067,23 +1121,34 @@ static int ibmveth_change_mtu(struct net_device *dev, int new_mtu) if (i == IbmVethNumBufferPools) return -EINVAL; + /* Deactivate all the buffer pools so that the next loop can activate + only the buffer pools necessary to hold the new MTU */ + for (i = 0; i < IbmVethNumBufferPools; i++) + if (adapter->rx_buff_pool[i].active) { + ibmveth_free_buffer_pool(adapter, + &adapter->rx_buff_pool[i]); + adapter->rx_buff_pool[i].active = 0; + } + /* Look for an active buffer pool that can hold the new MTU */ for(i = 0; i<IbmVethNumBufferPools; i++) { - if (!adapter->rx_buff_pool[i].active) { - adapter->rx_buff_pool[i].active = 1; - reinit = 1; - } + adapter->rx_buff_pool[i].active = 1; if (new_mtu_oh < adapter->rx_buff_pool[i].buff_size) { - if (reinit && netif_running(adapter->netdev)) { + if (netif_running(adapter->netdev)) { adapter->pool_config = 1; ibmveth_close(adapter->netdev); adapter->pool_config = 0; dev->mtu = new_mtu; - if ((rc = ibmveth_open(adapter->netdev))) - return rc; - } else - dev->mtu = new_mtu; + vio_cmo_set_dev_desired(viodev, + ibmveth_get_desired_dma + (viodev)); + return ibmveth_open(adapter->netdev); + } + dev->mtu = new_mtu; + vio_cmo_set_dev_desired(viodev, + ibmveth_get_desired_dma + (viodev)); return 0; } } @@ -1098,6 +1163,46 @@ static void ibmveth_poll_controller(struct net_device *dev) } #endif +/** + * ibmveth_get_desired_dma - Calculate IO memory desired by the driver + * + * @vdev: struct vio_dev for the device whose desired IO mem is to be returned + * + * Return value: + * Number of bytes of IO data the driver will need to perform well. + */ +static unsigned long ibmveth_get_desired_dma(struct vio_dev *vdev) +{ + struct net_device *netdev = dev_get_drvdata(&vdev->dev); + struct ibmveth_adapter *adapter; + unsigned long ret; + int i; + int rxqentries = 1; + + /* netdev inits at probe time along with the structures we need below*/ + if (netdev == NULL) + return IOMMU_PAGE_ALIGN(IBMVETH_IO_ENTITLEMENT_DEFAULT); + + adapter = netdev_priv(netdev); + + ret = IBMVETH_BUFF_LIST_SIZE + IBMVETH_FILT_LIST_SIZE; + ret += IOMMU_PAGE_ALIGN(netdev->mtu); + + for (i = 0; i < IbmVethNumBufferPools; i++) { + /* add the size of the active receive buffers */ + if (adapter->rx_buff_pool[i].active) + ret += + adapter->rx_buff_pool[i].size * + IOMMU_PAGE_ALIGN(adapter->rx_buff_pool[i]. + buff_size); + rxqentries += adapter->rx_buff_pool[i].size; + } + /* add the size of the receive queue entries */ + ret += IOMMU_PAGE_ALIGN(rxqentries * sizeof(struct ibmveth_rx_q_entry)); + + return ret; +} + static int __devinit ibmveth_probe(struct vio_dev *dev, const struct vio_device_id *id) { int rc, i; @@ -1242,6 +1347,8 @@ static int __devexit ibmveth_remove(struct vio_dev *dev) ibmveth_proc_unregister_adapter(adapter); free_netdev(netdev); + dev_set_drvdata(&dev->dev, NULL); + return 0; } @@ -1402,14 +1509,15 @@ const char * buf, size_t count) return -EPERM; } - pool->active = 0; if (netif_running(netdev)) { adapter->pool_config = 1; ibmveth_close(netdev); + pool->active = 0; adapter->pool_config = 0; if ((rc = ibmveth_open(netdev))) return rc; } + pool->active = 0; } } else if (attr == &veth_num_attr) { if (value <= 0 || value > IBMVETH_MAX_POOL_COUNT) @@ -1485,6 +1593,7 @@ static struct vio_driver ibmveth_driver = { .id_table = ibmveth_device_table, .probe = ibmveth_probe, .remove = ibmveth_remove, + .get_desired_dma = ibmveth_get_desired_dma, .driver = { .name = ibmveth_driver_name, .owner = THIS_MODULE, diff --git a/drivers/net/ibmveth.h b/drivers/net/ibmveth.h index 41f61cd..d281869 100644 --- a/drivers/net/ibmveth.h +++ b/drivers/net/ibmveth.h @@ -93,9 +93,12 @@ static inline long h_illan_attributes(unsigned long unit_address, plpar_hcall_norets(H_CHANGE_LOGICAL_LAN_MAC, ua, mac) #define IbmVethNumBufferPools 5 +#define IBMVETH_IO_ENTITLEMENT_DEFAULT 4243456 /* MTU of 1500 needs 4.2Mb */ #define IBMVETH_BUFF_OH 22 /* Overhead: 14 ethernet header + 8 opaque handle */ #define IBMVETH_MAX_MTU 68 #define IBMVETH_MAX_POOL_COUNT 4096 +#define IBMVETH_BUFF_LIST_SIZE 4096 +#define IBMVETH_FILT_LIST_SIZE 4096 #define IBMVETH_MAX_BUF_SIZE (1024 * 128) static int pool_size[] = { 512, 1024 * 2, 1024 * 16, 1024 * 32, 1024 * 64 }; @@ -143,6 +146,8 @@ struct ibmveth_adapter { struct ibmveth_rx_q rx_queue; int pool_config; int rx_csum; + void *bounce_buffer; + dma_addr_t bounce_buffer_dma; /* adapter specific stats */ u64 replenish_task_cycles; diff --git a/drivers/net/iseries_veth.c b/drivers/net/iseries_veth.c index b8d0639..c46864d 100644 --- a/drivers/net/iseries_veth.c +++ b/drivers/net/iseries_veth.c @@ -1128,7 +1128,7 @@ static int veth_transmit_to_one(struct sk_buff *skb, HvLpIndex rlp, msg->data.addr[0] = dma_map_single(port->dev, skb->data, skb->len, DMA_TO_DEVICE); - if (dma_mapping_error(msg->data.addr[0])) + if (dma_mapping_error(port->dev, msg->data.addr[0])) goto recycle_and_drop; msg->dev = port->dev; @@ -1226,7 +1226,7 @@ static void veth_recycle_msg(struct veth_lpar_connection *cnx, dma_address = msg->data.addr[0]; dma_length = msg->data.len[0]; - if (!dma_mapping_error(dma_address)) + if (!dma_mapping_error(msg->dev, dma_address)) dma_unmap_single(msg->dev, dma_address, dma_length, DMA_TO_DEVICE); diff --git a/drivers/net/mlx4/alloc.c b/drivers/net/mlx4/alloc.c index f9d6b4d..096bca5 100644 --- a/drivers/net/mlx4/alloc.c +++ b/drivers/net/mlx4/alloc.c @@ -1,5 +1,6 @@ /* * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved. + * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU diff --git a/drivers/net/mlx4/catas.c b/drivers/net/mlx4/catas.c index aa95287..f094ee0 100644 --- a/drivers/net/mlx4/catas.c +++ b/drivers/net/mlx4/catas.c @@ -1,5 +1,6 @@ /* * Copyright (c) 2007 Cisco Systems, Inc. All rights reserved. + * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU diff --git a/drivers/net/mlx4/cmd.c b/drivers/net/mlx4/cmd.c index 70dff94..2845a05 100644 --- a/drivers/net/mlx4/cmd.c +++ b/drivers/net/mlx4/cmd.c @@ -1,6 +1,6 @@ /* * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. - * Copyright (c) 2005 Mellanox Technologies. All rights reserved. + * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved. * Copyright (c) 2005, 2006, 2007 Cisco Systems, Inc. All rights reserved. * * This software is available to you under a choice of one of two @@ -67,6 +67,8 @@ enum { CMD_STAT_BAD_INDEX = 0x0a, /* FW image corrupted: */ CMD_STAT_BAD_NVMEM = 0x0b, + /* Error in ICM mapping (e.g. not enough auxiliary ICM pages to execute command): */ + CMD_STAT_ICM_ERROR = 0x0c, /* Attempt to modify a QP/EE which is not in the presumed state: */ CMD_STAT_BAD_QP_STATE = 0x10, /* Bad segment parameters (Address/Size): */ @@ -119,6 +121,7 @@ static int mlx4_status_to_errno(u8 status) [CMD_STAT_BAD_RES_STATE] = -EBADF, [CMD_STAT_BAD_INDEX] = -EBADF, [CMD_STAT_BAD_NVMEM] = -EFAULT, + [CMD_STAT_ICM_ERROR] = -ENFILE, [CMD_STAT_BAD_QP_STATE] = -EINVAL, [CMD_STAT_BAD_SEG_PARAM] = -EFAULT, [CMD_STAT_REG_BOUND] = -EBUSY, diff --git a/drivers/net/mlx4/cq.c b/drivers/net/mlx4/cq.c index 95e87a2..9bb50e3 100644 --- a/drivers/net/mlx4/cq.c +++ b/drivers/net/mlx4/cq.c @@ -2,7 +2,7 @@ * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. * Copyright (c) 2005, 2006, 2007 Cisco Systems, Inc. All rights reserved. - * Copyright (c) 2005 Mellanox Technologies. All rights reserved. + * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved. * Copyright (c) 2004 Voltaire, Inc. All rights reserved. * * This software is available to you under a choice of one of two diff --git a/drivers/net/mlx4/eq.c b/drivers/net/mlx4/eq.c index e141a15..8a8b561 100644 --- a/drivers/net/mlx4/eq.c +++ b/drivers/net/mlx4/eq.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2005 Mellanox Technologies. All rights reserved. + * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved. * Copyright (c) 2005, 2006, 2007 Cisco Systems, Inc. All rights reserved. * * This software is available to you under a choice of one of two @@ -33,6 +33,7 @@ #include <linux/init.h> #include <linux/interrupt.h> +#include <linux/mm.h> #include <linux/dma-mapping.h> #include <linux/mlx4/cmd.h> @@ -525,7 +526,7 @@ int mlx4_map_eq_icm(struct mlx4_dev *dev, u64 icm_virt) return -ENOMEM; priv->eq_table.icm_dma = pci_map_page(dev->pdev, priv->eq_table.icm_page, 0, PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); - if (pci_dma_mapping_error(priv->eq_table.icm_dma)) { + if (pci_dma_mapping_error(dev->pdev, priv->eq_table.icm_dma)) { __free_page(priv->eq_table.icm_page); return -ENOMEM; } diff --git a/drivers/net/mlx4/fw.c b/drivers/net/mlx4/fw.c index 2b5006b..7e32955 100644 --- a/drivers/net/mlx4/fw.c +++ b/drivers/net/mlx4/fw.c @@ -1,6 +1,6 @@ /* * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. - * Copyright (c) 2005 Mellanox Technologies. All rights reserved. + * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved. * Copyright (c) 2005, 2006, 2007 Cisco Systems, Inc. All rights reserved. * * This software is available to you under a choice of one of two @@ -46,6 +46,10 @@ enum { extern void __buggy_use_of_MLX4_GET(void); extern void __buggy_use_of_MLX4_PUT(void); +static int enable_qos; +module_param(enable_qos, bool, 0444); +MODULE_PARM_DESC(enable_qos, "Enable Quality of Service support in the HCA (default: off)"); + #define MLX4_GET(dest, source, offset) \ do { \ void *__p = (char *) (source) + (offset); \ @@ -198,7 +202,7 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap) #define QUERY_DEV_CAP_C_MPT_ENTRY_SZ_OFFSET 0x8e #define QUERY_DEV_CAP_MTT_ENTRY_SZ_OFFSET 0x90 #define QUERY_DEV_CAP_D_MPT_ENTRY_SZ_OFFSET 0x92 -#define QUERY_DEV_CAP_BMME_FLAGS_OFFSET 0x97 +#define QUERY_DEV_CAP_BMME_FLAGS_OFFSET 0x94 #define QUERY_DEV_CAP_RSVD_LKEY_OFFSET 0x98 #define QUERY_DEV_CAP_MAX_ICM_SZ_OFFSET 0xa0 @@ -373,12 +377,8 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap) } } - if (dev_cap->bmme_flags & 1) - mlx4_dbg(dev, "Base MM extensions: yes " - "(flags %d, rsvd L_Key %08x)\n", - dev_cap->bmme_flags, dev_cap->reserved_lkey); - else - mlx4_dbg(dev, "Base MM extensions: no\n"); + mlx4_dbg(dev, "Base MM extensions: flags %08x, rsvd L_Key %08x\n", + dev_cap->bmme_flags, dev_cap->reserved_lkey); /* * Each UAR has 4 EQ doorbells; so if a UAR is reserved, then @@ -737,6 +737,10 @@ int mlx4_INIT_HCA(struct mlx4_dev *dev, struct mlx4_init_hca_param *param) if (dev->caps.flags & MLX4_DEV_CAP_FLAG_IPOIB_CSUM) *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 3); + /* Enable QoS support if module parameter set */ + if (enable_qos) + *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 2); + /* QPC/EEC/CQC/EQC/RDMARC attributes */ MLX4_PUT(inbox, param->qpc_base, INIT_HCA_QPC_BASE_OFFSET); diff --git a/drivers/net/mlx4/fw.h b/drivers/net/mlx4/fw.h index a0e046c..decbb5c 100644 --- a/drivers/net/mlx4/fw.h +++ b/drivers/net/mlx4/fw.h @@ -1,6 +1,6 @@ /* * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. - * Copyright (c) 2005 Mellanox Technologies. All rights reserved. + * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved. * Copyright (c) 2006, 2007 Cisco Systems. All rights reserved. * * This software is available to you under a choice of one of two @@ -98,7 +98,7 @@ struct mlx4_dev_cap { int cmpt_entry_sz; int mtt_entry_sz; int resize_srq; - u8 bmme_flags; + u32 bmme_flags; u32 reserved_lkey; u64 max_icm_sz; int max_gso_sz; diff --git a/drivers/net/mlx4/icm.c b/drivers/net/mlx4/icm.c index 2a5bef6..baf4bf6 100644 --- a/drivers/net/mlx4/icm.c +++ b/drivers/net/mlx4/icm.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2005 Mellanox Technologies. All rights reserved. + * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved. * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved. * * This software is available to you under a choice of one of two diff --git a/drivers/net/mlx4/icm.h b/drivers/net/mlx4/icm.h index 6c44edf..ab56a2f 100644 --- a/drivers/net/mlx4/icm.h +++ b/drivers/net/mlx4/icm.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2005 Mellanox Technologies. All rights reserved. + * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved. * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved. * * This software is available to you under a choice of one of two diff --git a/drivers/net/mlx4/intf.c b/drivers/net/mlx4/intf.c index 4a6c4d5..0e7eb10 100644 --- a/drivers/net/mlx4/intf.c +++ b/drivers/net/mlx4/intf.c @@ -1,5 +1,6 @@ /* * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved. + * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU diff --git a/drivers/net/mlx4/main.c b/drivers/net/mlx4/main.c index d373601..1252a919 100644 --- a/drivers/net/mlx4/main.c +++ b/drivers/net/mlx4/main.c @@ -1,7 +1,7 @@ /* * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. - * Copyright (c) 2005 Mellanox Technologies. All rights reserved. + * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved. * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved. * * This software is available to you under a choice of one of two @@ -158,6 +158,8 @@ static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap) dev->caps.max_msg_sz = dev_cap->max_msg_sz; dev->caps.page_size_cap = ~(u32) (dev_cap->min_page_sz - 1); dev->caps.flags = dev_cap->flags; + dev->caps.bmme_flags = dev_cap->bmme_flags; + dev->caps.reserved_lkey = dev_cap->reserved_lkey; dev->caps.stat_rate_support = dev_cap->stat_rate_support; dev->caps.max_gso_sz = dev_cap->max_gso_sz; diff --git a/drivers/net/mlx4/mcg.c b/drivers/net/mlx4/mcg.c index b4b5787..c83f88c 100644 --- a/drivers/net/mlx4/mcg.c +++ b/drivers/net/mlx4/mcg.c @@ -1,5 +1,6 @@ /* * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved. + * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU diff --git a/drivers/net/mlx4/mlx4.h b/drivers/net/mlx4/mlx4.h index a4023c2..5337e3a 100644 --- a/drivers/net/mlx4/mlx4.h +++ b/drivers/net/mlx4/mlx4.h @@ -2,7 +2,7 @@ * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. * Copyright (c) 2005, 2006, 2007 Cisco Systems. All rights reserved. - * Copyright (c) 2005 Mellanox Technologies. All rights reserved. + * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved. * Copyright (c) 2004 Voltaire, Inc. All rights reserved. * * This software is available to you under a choice of one of two @@ -118,6 +118,7 @@ struct mlx4_bitmap { struct mlx4_buddy { unsigned long **bits; + unsigned int *num_free; int max_order; spinlock_t lock; }; diff --git a/drivers/net/mlx4/mr.c b/drivers/net/mlx4/mr.c index 03a9abc..62071d9 100644 --- a/drivers/net/mlx4/mr.c +++ b/drivers/net/mlx4/mr.c @@ -1,6 +1,6 @@ /* * Copyright (c) 2004 Topspin Communications. All rights reserved. - * Copyright (c) 2005 Mellanox Technologies. All rights reserved. + * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved. * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved. * * This software is available to you under a choice of one of two @@ -47,7 +47,7 @@ struct mlx4_mpt_entry { __be32 flags; __be32 qpn; __be32 key; - __be32 pd; + __be32 pd_flags; __be64 start; __be64 length; __be32 lkey; @@ -61,11 +61,15 @@ struct mlx4_mpt_entry { } __attribute__((packed)); #define MLX4_MPT_FLAG_SW_OWNS (0xfUL << 28) +#define MLX4_MPT_FLAG_FREE (0x3UL << 28) #define MLX4_MPT_FLAG_MIO (1 << 17) #define MLX4_MPT_FLAG_BIND_ENABLE (1 << 15) #define MLX4_MPT_FLAG_PHYSICAL (1 << 9) #define MLX4_MPT_FLAG_REGION (1 << 8) +#define MLX4_MPT_PD_FLAG_FAST_REG (1 << 26) +#define MLX4_MPT_PD_FLAG_EN_INV (3 << 24) + #define MLX4_MTT_FLAG_PRESENT 1 #define MLX4_MPT_STATUS_SW 0xF0 @@ -79,23 +83,26 @@ static u32 mlx4_buddy_alloc(struct mlx4_buddy *buddy, int order) spin_lock(&buddy->lock); - for (o = order; o <= buddy->max_order; ++o) { - m = 1 << (buddy->max_order - o); - seg = find_first_bit(buddy->bits[o], m); - if (seg < m) - goto found; - } + for (o = order; o <= buddy->max_order; ++o) + if (buddy->num_free[o]) { + m = 1 << (buddy->max_order - o); + seg = find_first_bit(buddy->bits[o], m); + if (seg < m) + goto found; + } spin_unlock(&buddy->lock); return -1; found: clear_bit(seg, buddy->bits[o]); + --buddy->num_free[o]; while (o > order) { --o; seg <<= 1; set_bit(seg ^ 1, buddy->bits[o]); + ++buddy->num_free[o]; } spin_unlock(&buddy->lock); @@ -113,11 +120,13 @@ static void mlx4_buddy_free(struct mlx4_buddy *buddy, u32 seg, int order) while (test_bit(seg ^ 1, buddy->bits[order])) { clear_bit(seg ^ 1, buddy->bits[order]); + --buddy->num_free[order]; seg >>= 1; ++order; } set_bit(seg, buddy->bits[order]); + ++buddy->num_free[order]; spin_unlock(&buddy->lock); } @@ -131,7 +140,9 @@ static int mlx4_buddy_init(struct mlx4_buddy *buddy, int max_order) buddy->bits = kzalloc((buddy->max_order + 1) * sizeof (long *), GFP_KERNEL); - if (!buddy->bits) + buddy->num_free = kzalloc((buddy->max_order + 1) * sizeof (int *), + GFP_KERNEL); + if (!buddy->bits || !buddy->num_free) goto err_out; for (i = 0; i <= buddy->max_order; ++i) { @@ -143,6 +154,7 @@ static int mlx4_buddy_init(struct mlx4_buddy *buddy, int max_order) } set_bit(0, buddy->bits[buddy->max_order]); + buddy->num_free[buddy->max_order] = 1; return 0; @@ -150,9 +162,10 @@ err_out_free: for (i = 0; i <= buddy->max_order; ++i) kfree(buddy->bits[i]); +err_out: kfree(buddy->bits); + kfree(buddy->num_free); -err_out: return -ENOMEM; } @@ -164,6 +177,7 @@ static void mlx4_buddy_cleanup(struct mlx4_buddy *buddy) kfree(buddy->bits[i]); kfree(buddy->bits); + kfree(buddy->num_free); } static u32 mlx4_alloc_mtt_range(struct mlx4_dev *dev, int order) @@ -314,21 +328,30 @@ int mlx4_mr_enable(struct mlx4_dev *dev, struct mlx4_mr *mr) memset(mpt_entry, 0, sizeof *mpt_entry); - mpt_entry->flags = cpu_to_be32(MLX4_MPT_FLAG_SW_OWNS | - MLX4_MPT_FLAG_MIO | + mpt_entry->flags = cpu_to_be32(MLX4_MPT_FLAG_MIO | MLX4_MPT_FLAG_REGION | mr->access); mpt_entry->key = cpu_to_be32(key_to_hw_index(mr->key)); - mpt_entry->pd = cpu_to_be32(mr->pd); + mpt_entry->pd_flags = cpu_to_be32(mr->pd | MLX4_MPT_PD_FLAG_EN_INV); mpt_entry->start = cpu_to_be64(mr->iova); mpt_entry->length = cpu_to_be64(mr->size); mpt_entry->entity_size = cpu_to_be32(mr->mtt.page_shift); + if (mr->mtt.order < 0) { mpt_entry->flags |= cpu_to_be32(MLX4_MPT_FLAG_PHYSICAL); mpt_entry->mtt_seg = 0; - } else + } else { mpt_entry->mtt_seg = cpu_to_be64(mlx4_mtt_addr(dev, &mr->mtt)); + } + + if (mr->mtt.order >= 0 && mr->mtt.page_shift == 0) { + /* fast register MR in free state */ + mpt_entry->flags |= cpu_to_be32(MLX4_MPT_FLAG_FREE); + mpt_entry->pd_flags |= cpu_to_be32(MLX4_MPT_PD_FLAG_FAST_REG); + } else { + mpt_entry->flags |= cpu_to_be32(MLX4_MPT_FLAG_SW_OWNS); + } err = mlx4_SW2HW_MPT(dev, mailbox, key_to_hw_index(mr->key) & (dev->caps.num_mpts - 1)); diff --git a/drivers/net/mlx4/pd.c b/drivers/net/mlx4/pd.c index 3a93c5f..aa61689 100644 --- a/drivers/net/mlx4/pd.c +++ b/drivers/net/mlx4/pd.c @@ -91,6 +91,13 @@ EXPORT_SYMBOL_GPL(mlx4_uar_free); int mlx4_init_uar_table(struct mlx4_dev *dev) { + if (dev->caps.num_uars <= 128) { + mlx4_err(dev, "Only %d UAR pages (need more than 128)\n", + dev->caps.num_uars); + mlx4_err(dev, "Increase firmware log2_uar_bar_megabytes?\n"); + return -ENODEV; + } + return mlx4_bitmap_init(&mlx4_priv(dev)->uar_table.bitmap, dev->caps.num_uars, dev->caps.num_uars - 1, max(128, dev->caps.reserved_uars)); diff --git a/drivers/net/mlx4/qp.c b/drivers/net/mlx4/qp.c index ee5484c..c49a860 100644 --- a/drivers/net/mlx4/qp.c +++ b/drivers/net/mlx4/qp.c @@ -1,7 +1,7 @@ /* * Copyright (c) 2004 Topspin Communications. All rights reserved. * Copyright (c) 2005, 2006, 2007 Cisco Systems, Inc. All rights reserved. - * Copyright (c) 2005 Mellanox Technologies. All rights reserved. + * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved. * Copyright (c) 2004 Voltaire, Inc. All rights reserved. * * This software is available to you under a choice of one of two diff --git a/drivers/net/mlx4/reset.c b/drivers/net/mlx4/reset.c index e199715..3951b88 100644 --- a/drivers/net/mlx4/reset.c +++ b/drivers/net/mlx4/reset.c @@ -1,5 +1,6 @@ /* * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved. + * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU diff --git a/drivers/net/mlx4/srq.c b/drivers/net/mlx4/srq.c index d23f46d..533eb6d 100644 --- a/drivers/net/mlx4/srq.c +++ b/drivers/net/mlx4/srq.c @@ -1,5 +1,6 @@ /* * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved. + * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU diff --git a/drivers/net/pasemi_mac.c b/drivers/net/pasemi_mac.c index 993d87c..edc0fd5 100644 --- a/drivers/net/pasemi_mac.c +++ b/drivers/net/pasemi_mac.c @@ -650,7 +650,7 @@ static void pasemi_mac_replenish_rx_ring(const struct net_device *dev, mac->bufsz - LOCAL_SKB_ALIGN, PCI_DMA_FROMDEVICE); - if (unlikely(dma_mapping_error(dma))) { + if (unlikely(pci_dma_mapping_error(mac->dma_pdev, dma))) { dev_kfree_skb_irq(info->skb); break; } @@ -1519,7 +1519,7 @@ static int pasemi_mac_start_tx(struct sk_buff *skb, struct net_device *dev) map[0] = pci_map_single(mac->dma_pdev, skb->data, skb_headlen(skb), PCI_DMA_TODEVICE); map_size[0] = skb_headlen(skb); - if (dma_mapping_error(map[0])) + if (pci_dma_mapping_error(mac->dma_pdev, map[0])) goto out_err_nolock; for (i = 0; i < nfrags; i++) { @@ -1529,7 +1529,7 @@ static int pasemi_mac_start_tx(struct sk_buff *skb, struct net_device *dev) frag->page_offset, frag->size, PCI_DMA_TODEVICE); map_size[i+1] = frag->size; - if (dma_mapping_error(map[i+1])) { + if (pci_dma_mapping_error(mac->dma_pdev, map[i+1])) { nfrags = i; goto out_err_nolock; } diff --git a/drivers/net/ppp_generic.c b/drivers/net/ppp_generic.c index 739b3ab..ddccc07 100644 --- a/drivers/net/ppp_generic.c +++ b/drivers/net/ppp_generic.c @@ -581,12 +581,12 @@ static long ppp_ioctl(struct file *file, unsigned int cmd, unsigned long arg) if (file == ppp->owner) ppp_shutdown_interface(ppp); } - if (atomic_read(&file->f_count) <= 2) { + if (atomic_long_read(&file->f_count) <= 2) { ppp_release(NULL, file); err = 0; } else - printk(KERN_DEBUG "PPPIOCDETACH file->f_count=%d\n", - atomic_read(&file->f_count)); + printk(KERN_DEBUG "PPPIOCDETACH file->f_count=%ld\n", + atomic_long_read(&file->f_count)); unlock_kernel(); return err; } diff --git a/drivers/net/qla3xxx.c b/drivers/net/qla3xxx.c index e7d48a3..e82b37b 100644 --- a/drivers/net/qla3xxx.c +++ b/drivers/net/qla3xxx.c @@ -328,7 +328,7 @@ static void ql_release_to_lrg_buf_free_list(struct ql3_adapter *qdev, qdev->lrg_buffer_len - QL_HEADER_SPACE, PCI_DMA_FROMDEVICE); - err = pci_dma_mapping_error(map); + err = pci_dma_mapping_error(qdev->pdev, map); if(err) { printk(KERN_ERR "%s: PCI mapping failed with error: %d\n", qdev->ndev->name, err); @@ -1919,7 +1919,7 @@ static int ql_populate_free_queue(struct ql3_adapter *qdev) QL_HEADER_SPACE, PCI_DMA_FROMDEVICE); - err = pci_dma_mapping_error(map); + err = pci_dma_mapping_error(qdev->pdev, map); if(err) { printk(KERN_ERR "%s: PCI mapping failed with error: %d\n", qdev->ndev->name, err); @@ -2454,7 +2454,7 @@ static int ql_send_map(struct ql3_adapter *qdev, */ map = pci_map_single(qdev->pdev, skb->data, len, PCI_DMA_TODEVICE); - err = pci_dma_mapping_error(map); + err = pci_dma_mapping_error(qdev->pdev, map); if(err) { printk(KERN_ERR "%s: PCI mapping failed with error: %d\n", qdev->ndev->name, err); @@ -2487,7 +2487,7 @@ static int ql_send_map(struct ql3_adapter *qdev, sizeof(struct oal), PCI_DMA_TODEVICE); - err = pci_dma_mapping_error(map); + err = pci_dma_mapping_error(qdev->pdev, map); if(err) { printk(KERN_ERR "%s: PCI mapping outbound address list with error: %d\n", @@ -2514,7 +2514,7 @@ static int ql_send_map(struct ql3_adapter *qdev, frag->page_offset, frag->size, PCI_DMA_TODEVICE); - err = pci_dma_mapping_error(map); + err = pci_dma_mapping_error(qdev->pdev, map); if(err) { printk(KERN_ERR "%s: PCI mapping frags failed with error: %d\n", qdev->ndev->name, err); @@ -2916,7 +2916,7 @@ static int ql_alloc_large_buffers(struct ql3_adapter *qdev) QL_HEADER_SPACE, PCI_DMA_FROMDEVICE); - err = pci_dma_mapping_error(map); + err = pci_dma_mapping_error(qdev->pdev, map); if(err) { printk(KERN_ERR "%s: PCI mapping failed with error: %d\n", qdev->ndev->name, err); diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c index 9dae40c..86d77d0 100644 --- a/drivers/net/s2io.c +++ b/drivers/net/s2io.c @@ -2512,8 +2512,8 @@ static void stop_nic(struct s2io_nic *nic) * Return Value: * SUCCESS on success or an appropriate -ve value on failure. */ - -static int fill_rx_buffers(struct ring_info *ring, int from_card_up) +static int fill_rx_buffers(struct s2io_nic *nic, struct ring_info *ring, + int from_card_up) { struct sk_buff *skb; struct RxD_t *rxdp; @@ -2602,7 +2602,8 @@ static int fill_rx_buffers(struct ring_info *ring, int from_card_up) rxdp1->Buffer0_ptr = pci_map_single (ring->pdev, skb->data, size - NET_IP_ALIGN, PCI_DMA_FROMDEVICE); - if(pci_dma_mapping_error(rxdp1->Buffer0_ptr)) + if (pci_dma_mapping_error(nic->pdev, + rxdp1->Buffer0_ptr)) goto pci_map_failed; rxdp->Control_2 = @@ -2636,7 +2637,8 @@ static int fill_rx_buffers(struct ring_info *ring, int from_card_up) rxdp3->Buffer0_ptr = pci_map_single(ring->pdev, ba->ba_0, BUF0_LEN, PCI_DMA_FROMDEVICE); - if (pci_dma_mapping_error(rxdp3->Buffer0_ptr)) + if (pci_dma_mapping_error(nic->pdev, + rxdp3->Buffer0_ptr)) goto pci_map_failed; } else pci_dma_sync_single_for_device(ring->pdev, @@ -2655,7 +2657,8 @@ static int fill_rx_buffers(struct ring_info *ring, int from_card_up) (ring->pdev, skb->data, ring->mtu + 4, PCI_DMA_FROMDEVICE); - if (pci_dma_mapping_error(rxdp3->Buffer2_ptr)) + if (pci_dma_mapping_error(nic->pdev, + rxdp3->Buffer2_ptr)) goto pci_map_failed; if (from_card_up) { @@ -2664,8 +2667,8 @@ static int fill_rx_buffers(struct ring_info *ring, int from_card_up) ba->ba_1, BUF1_LEN, PCI_DMA_FROMDEVICE); - if (pci_dma_mapping_error - (rxdp3->Buffer1_ptr)) { + if (pci_dma_mapping_error(nic->pdev, + rxdp3->Buffer1_ptr)) { pci_unmap_single (ring->pdev, (dma_addr_t)(unsigned long) @@ -2806,9 +2809,9 @@ static void free_rx_buffers(struct s2io_nic *sp) } } -static int s2io_chk_rx_buffers(struct ring_info *ring) +static int s2io_chk_rx_buffers(struct s2io_nic *nic, struct ring_info *ring) { - if (fill_rx_buffers(ring, 0) == -ENOMEM) { + if (fill_rx_buffers(nic, ring, 0) == -ENOMEM) { DBG_PRINT(INFO_DBG, "%s:Out of memory", ring->dev->name); DBG_PRINT(INFO_DBG, " in Rx Intr!!\n"); } @@ -2848,7 +2851,7 @@ static int s2io_poll_msix(struct napi_struct *napi, int budget) return 0; pkts_processed = rx_intr_handler(ring, budget); - s2io_chk_rx_buffers(ring); + s2io_chk_rx_buffers(nic, ring); if (pkts_processed < budget_org) { netif_rx_complete(dev, napi); @@ -2882,7 +2885,7 @@ static int s2io_poll_inta(struct napi_struct *napi, int budget) for (i = 0; i < config->rx_ring_num; i++) { ring = &mac_control->rings[i]; ring_pkts_processed = rx_intr_handler(ring, budget); - s2io_chk_rx_buffers(ring); + s2io_chk_rx_buffers(nic, ring); pkts_processed += ring_pkts_processed; budget -= ring_pkts_processed; if (budget <= 0) @@ -2939,7 +2942,8 @@ static void s2io_netpoll(struct net_device *dev) rx_intr_handler(&mac_control->rings[i], 0); for (i = 0; i < config->rx_ring_num; i++) { - if (fill_rx_buffers(&mac_control->rings[i], 0) == -ENOMEM) { + if (fill_rx_buffers(nic, &mac_control->rings[i], 0) == + -ENOMEM) { DBG_PRINT(INFO_DBG, "%s:Out of memory", dev->name); DBG_PRINT(INFO_DBG, " in Rx Netpoll!!\n"); break; @@ -4235,14 +4239,14 @@ static int s2io_xmit(struct sk_buff *skb, struct net_device *dev) txdp->Buffer_Pointer = pci_map_single(sp->pdev, fifo->ufo_in_band_v, sizeof(u64), PCI_DMA_TODEVICE); - if (pci_dma_mapping_error(txdp->Buffer_Pointer)) + if (pci_dma_mapping_error(sp->pdev, txdp->Buffer_Pointer)) goto pci_map_failed; txdp++; } txdp->Buffer_Pointer = pci_map_single (sp->pdev, skb->data, frg_len, PCI_DMA_TODEVICE); - if (pci_dma_mapping_error(txdp->Buffer_Pointer)) + if (pci_dma_mapping_error(sp->pdev, txdp->Buffer_Pointer)) goto pci_map_failed; txdp->Host_Control = (unsigned long) skb; @@ -4345,7 +4349,7 @@ static irqreturn_t s2io_msix_ring_handle(int irq, void *dev_id) netif_rx_schedule(dev, &ring->napi); } else { rx_intr_handler(ring, 0); - s2io_chk_rx_buffers(ring); + s2io_chk_rx_buffers(sp, ring); } return IRQ_HANDLED; @@ -4826,7 +4830,7 @@ static irqreturn_t s2io_isr(int irq, void *dev_id) */ if (!config->napi) { for (i = 0; i < config->rx_ring_num; i++) - s2io_chk_rx_buffers(&mac_control->rings[i]); + s2io_chk_rx_buffers(sp, &mac_control->rings[i]); } writeq(sp->general_int_mask, &bar0->general_int_mask); readl(&bar0->general_int_status); @@ -6859,7 +6863,7 @@ static int set_rxd_buffer_pointer(struct s2io_nic *sp, struct RxD_t *rxdp, pci_map_single( sp->pdev, (*skb)->data, size - NET_IP_ALIGN, PCI_DMA_FROMDEVICE); - if (pci_dma_mapping_error(rxdp1->Buffer0_ptr)) + if (pci_dma_mapping_error(sp->pdev, rxdp1->Buffer0_ptr)) goto memalloc_failed; rxdp->Host_Control = (unsigned long) (*skb); } @@ -6886,12 +6890,13 @@ static int set_rxd_buffer_pointer(struct s2io_nic *sp, struct RxD_t *rxdp, pci_map_single(sp->pdev, (*skb)->data, dev->mtu + 4, PCI_DMA_FROMDEVICE); - if (pci_dma_mapping_error(rxdp3->Buffer2_ptr)) + if (pci_dma_mapping_error(sp->pdev, rxdp3->Buffer2_ptr)) goto memalloc_failed; rxdp3->Buffer0_ptr = *temp0 = pci_map_single( sp->pdev, ba->ba_0, BUF0_LEN, PCI_DMA_FROMDEVICE); - if (pci_dma_mapping_error(rxdp3->Buffer0_ptr)) { + if (pci_dma_mapping_error(sp->pdev, + rxdp3->Buffer0_ptr)) { pci_unmap_single (sp->pdev, (dma_addr_t)rxdp3->Buffer2_ptr, dev->mtu + 4, PCI_DMA_FROMDEVICE); @@ -6903,7 +6908,8 @@ static int set_rxd_buffer_pointer(struct s2io_nic *sp, struct RxD_t *rxdp, rxdp3->Buffer1_ptr = *temp1 = pci_map_single(sp->pdev, ba->ba_1, BUF1_LEN, PCI_DMA_FROMDEVICE); - if (pci_dma_mapping_error(rxdp3->Buffer1_ptr)) { + if (pci_dma_mapping_error(sp->pdev, + rxdp3->Buffer1_ptr)) { pci_unmap_single (sp->pdev, (dma_addr_t)rxdp3->Buffer0_ptr, BUF0_LEN, PCI_DMA_FROMDEVICE); @@ -7187,7 +7193,7 @@ static int s2io_card_up(struct s2io_nic * sp) for (i = 0; i < config->rx_ring_num; i++) { mac_control->rings[i].mtu = dev->mtu; - ret = fill_rx_buffers(&mac_control->rings[i], 1); + ret = fill_rx_buffers(sp, &mac_control->rings[i], 1); if (ret) { DBG_PRINT(ERR_DBG, "%s: Out of memory in Open\n", dev->name); diff --git a/drivers/net/sfc/rx.c b/drivers/net/sfc/rx.c index 601b001..0d27dd3 100644 --- a/drivers/net/sfc/rx.c +++ b/drivers/net/sfc/rx.c @@ -233,7 +233,7 @@ static inline int efx_init_rx_buffer_skb(struct efx_rx_queue *rx_queue, rx_buf->data, rx_buf->len, PCI_DMA_FROMDEVICE); - if (unlikely(pci_dma_mapping_error(rx_buf->dma_addr))) { + if (unlikely(pci_dma_mapping_error(efx->pci_dev, rx_buf->dma_addr))) { dev_kfree_skb_any(rx_buf->skb); rx_buf->skb = NULL; return -EIO; @@ -275,7 +275,7 @@ static inline int efx_init_rx_buffer_page(struct efx_rx_queue *rx_queue, 0, efx_rx_buf_size(efx), PCI_DMA_FROMDEVICE); - if (unlikely(pci_dma_mapping_error(dma_addr))) { + if (unlikely(pci_dma_mapping_error(efx->pci_dev, dma_addr))) { __free_pages(rx_buf->page, efx->rx_buffer_order); rx_buf->page = NULL; return -EIO; diff --git a/drivers/net/sfc/tx.c b/drivers/net/sfc/tx.c index 5cdd082..5e8374a 100644 --- a/drivers/net/sfc/tx.c +++ b/drivers/net/sfc/tx.c @@ -172,7 +172,7 @@ static inline int efx_enqueue_skb(struct efx_tx_queue *tx_queue, /* Process all fragments */ while (1) { - if (unlikely(pci_dma_mapping_error(dma_addr))) + if (unlikely(pci_dma_mapping_error(pci_dev, dma_addr))) goto pci_err; /* Store fields for marking in the per-fragment final @@ -661,7 +661,8 @@ efx_tsoh_heap_alloc(struct efx_tx_queue *tx_queue, size_t header_len) tsoh->dma_addr = pci_map_single(tx_queue->efx->pci_dev, TSOH_BUFFER(tsoh), header_len, PCI_DMA_TODEVICE); - if (unlikely(pci_dma_mapping_error(tsoh->dma_addr))) { + if (unlikely(pci_dma_mapping_error(tx_queue->efx->pci_dev, + tsoh->dma_addr))) { kfree(tsoh); return NULL; } @@ -863,7 +864,7 @@ static inline int tso_get_fragment(struct tso_state *st, struct efx_nic *efx, st->ifc.unmap_addr = pci_map_page(efx->pci_dev, page, page_off, len, PCI_DMA_TODEVICE); - if (likely(!pci_dma_mapping_error(st->ifc.unmap_addr))) { + if (likely(!pci_dma_mapping_error(efx->pci_dev, st->ifc.unmap_addr))) { st->ifc.unmap_len = len; st->ifc.len = len; st->ifc.dma_addr = st->ifc.unmap_addr; diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c index 711e4a8..5257cf4 100644 --- a/drivers/net/sky2.c +++ b/drivers/net/sky2.c @@ -1829,9 +1829,6 @@ static int sky2_down(struct net_device *dev) if (netif_msg_ifdown(sky2)) printk(KERN_INFO PFX "%s: disabling interface\n", dev->name); - /* Stop more packets from being queued */ - netif_stop_queue(dev); - /* Disable port IRQ */ imask = sky2_read32(hw, B0_IMSK); imask &= ~portirq_msk[port]; @@ -1887,8 +1884,6 @@ static int sky2_down(struct net_device *dev) sky2_phy_power_down(hw, port); - netif_carrier_off(dev); - /* turn off LED's */ sky2_write16(hw, B0_Y2LED, LED_STAT_OFF); diff --git a/drivers/net/spider_net.c b/drivers/net/spider_net.c index 00aa0b1..b6435d0 100644 --- a/drivers/net/spider_net.c +++ b/drivers/net/spider_net.c @@ -452,7 +452,7 @@ spider_net_prepare_rx_descr(struct spider_net_card *card, /* iommu-map the skb */ buf = pci_map_single(card->pdev, descr->skb->data, SPIDER_NET_MAX_FRAME, PCI_DMA_FROMDEVICE); - if (pci_dma_mapping_error(buf)) { + if (pci_dma_mapping_error(card->pdev, buf)) { dev_kfree_skb_any(descr->skb); descr->skb = NULL; if (netif_msg_rx_err(card) && net_ratelimit()) @@ -691,7 +691,7 @@ spider_net_prepare_tx_descr(struct spider_net_card *card, unsigned long flags; buf = pci_map_single(card->pdev, skb->data, skb->len, PCI_DMA_TODEVICE); - if (pci_dma_mapping_error(buf)) { + if (pci_dma_mapping_error(card->pdev, buf)) { if (netif_msg_tx_err(card) && net_ratelimit()) dev_err(&card->netdev->dev, "could not iommu-map packet (%p, %i). " "Dropping packet\n", skb->data, skb->len); diff --git a/drivers/net/tc35815.c b/drivers/net/tc35815.c index a645e50..8487ace 100644 --- a/drivers/net/tc35815.c +++ b/drivers/net/tc35815.c @@ -506,7 +506,7 @@ static void *alloc_rxbuf_page(struct pci_dev *hwdev, dma_addr_t *dma_handle) return NULL; *dma_handle = pci_map_single(hwdev, buf, PAGE_SIZE, PCI_DMA_FROMDEVICE); - if (pci_dma_mapping_error(*dma_handle)) { + if (pci_dma_mapping_error(hwdev, *dma_handle)) { free_page((unsigned long)buf); return NULL; } @@ -536,7 +536,7 @@ static struct sk_buff *alloc_rxbuf_skb(struct net_device *dev, return NULL; *dma_handle = pci_map_single(hwdev, skb->data, RX_BUF_SIZE, PCI_DMA_FROMDEVICE); - if (pci_dma_mapping_error(*dma_handle)) { + if (pci_dma_mapping_error(hwdev, *dma_handle)) { dev_kfree_skb_any(skb); return NULL; } diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index c28d7cb..0196a0d 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -19,6 +19,7 @@ //#define DEBUG #include <linux/netdevice.h> #include <linux/etherdevice.h> +#include <linux/ethtool.h> #include <linux/module.h> #include <linux/virtio.h> #include <linux/virtio_net.h> @@ -54,9 +55,15 @@ struct virtnet_info struct tasklet_struct tasklet; bool free_in_tasklet; + /* I like... big packets and I cannot lie! */ + bool big_packets; + /* Receive & send queues. */ struct sk_buff_head recv; struct sk_buff_head send; + + /* Chain pages by the private ptr. */ + struct page *pages; }; static inline struct virtio_net_hdr *skb_vnet_hdr(struct sk_buff *skb) @@ -69,6 +76,23 @@ static inline void vnet_hdr_to_sg(struct scatterlist *sg, struct sk_buff *skb) sg_init_one(sg, skb_vnet_hdr(skb), sizeof(struct virtio_net_hdr)); } +static void give_a_page(struct virtnet_info *vi, struct page *page) +{ + page->private = (unsigned long)vi->pages; + vi->pages = page; +} + +static struct page *get_a_page(struct virtnet_info *vi, gfp_t gfp_mask) +{ + struct page *p = vi->pages; + + if (p) + vi->pages = (struct page *)p->private; + else + p = alloc_page(gfp_mask); + return p; +} + static void skb_xmit_done(struct virtqueue *svq) { struct virtnet_info *vi = svq->vdev->priv; @@ -88,6 +112,7 @@ static void receive_skb(struct net_device *dev, struct sk_buff *skb, unsigned len) { struct virtio_net_hdr *hdr = skb_vnet_hdr(skb); + int err; if (unlikely(len < sizeof(struct virtio_net_hdr) + ETH_HLEN)) { pr_debug("%s: short packet %i\n", dev->name, len); @@ -95,10 +120,23 @@ static void receive_skb(struct net_device *dev, struct sk_buff *skb, goto drop; } len -= sizeof(struct virtio_net_hdr); - BUG_ON(len > MAX_PACKET_LEN); - skb_trim(skb, len); + if (len <= MAX_PACKET_LEN) { + unsigned int i; + for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) + give_a_page(dev->priv, skb_shinfo(skb)->frags[i].page); + skb->data_len = 0; + skb_shinfo(skb)->nr_frags = 0; + } + + err = pskb_trim(skb, len); + if (err) { + pr_debug("%s: pskb_trim failed %i %d\n", dev->name, len, err); + dev->stats.rx_dropped++; + goto drop; + } + skb->truesize += skb->data_len; dev->stats.rx_bytes += skb->len; dev->stats.rx_packets++; @@ -160,7 +198,7 @@ static void try_fill_recv(struct virtnet_info *vi) { struct sk_buff *skb; struct scatterlist sg[2+MAX_SKB_FRAGS]; - int num, err; + int num, err, i; sg_init_table(sg, 2+MAX_SKB_FRAGS); for (;;) { @@ -170,6 +208,24 @@ static void try_fill_recv(struct virtnet_info *vi) skb_put(skb, MAX_PACKET_LEN); vnet_hdr_to_sg(sg, skb); + + if (vi->big_packets) { + for (i = 0; i < MAX_SKB_FRAGS; i++) { + skb_frag_t *f = &skb_shinfo(skb)->frags[i]; + f->page = get_a_page(vi, GFP_ATOMIC); + if (!f->page) + break; + + f->page_offset = 0; + f->size = PAGE_SIZE; + + skb->data_len += PAGE_SIZE; + skb->len += PAGE_SIZE; + + skb_shinfo(skb)->nr_frags++; + } + } + num = skb_to_sgvec(skb, sg+1, 0, skb->len) + 1; skb_queue_head(&vi->recv, skb); @@ -335,16 +391,11 @@ again: free_old_xmit_skbs(vi); /* If we has a buffer left over from last time, send it now. */ - if (unlikely(vi->last_xmit_skb)) { - if (xmit_skb(vi, vi->last_xmit_skb) != 0) { - /* Drop this skb: we only queue one. */ - vi->dev->stats.tx_dropped++; - kfree_skb(skb); - skb = NULL; - goto stop_queue; - } - vi->last_xmit_skb = NULL; - } + if (unlikely(vi->last_xmit_skb) && + xmit_skb(vi, vi->last_xmit_skb) != 0) + goto stop_queue; + + vi->last_xmit_skb = NULL; /* Put new one in send queue and do transmit */ if (likely(skb)) { @@ -370,6 +421,11 @@ stop_queue: netif_start_queue(dev); goto again; } + if (skb) { + /* Drop this skb: we only queue one. */ + vi->dev->stats.tx_dropped++; + kfree_skb(skb); + } goto done; } @@ -408,6 +464,22 @@ static int virtnet_close(struct net_device *dev) return 0; } +static int virtnet_set_tx_csum(struct net_device *dev, u32 data) +{ + struct virtnet_info *vi = netdev_priv(dev); + struct virtio_device *vdev = vi->vdev; + + if (data && !virtio_has_feature(vdev, VIRTIO_NET_F_CSUM)) + return -ENOSYS; + + return ethtool_op_set_tx_hw_csum(dev, data); +} + +static struct ethtool_ops virtnet_ethtool_ops = { + .set_tx_csum = virtnet_set_tx_csum, + .set_sg = ethtool_op_set_sg, +}; + static int virtnet_probe(struct virtio_device *vdev) { int err; @@ -427,6 +499,7 @@ static int virtnet_probe(struct virtio_device *vdev) #ifdef CONFIG_NET_POLL_CONTROLLER dev->poll_controller = virtnet_netpoll; #endif + SET_ETHTOOL_OPS(dev, &virtnet_ethtool_ops); SET_NETDEV_DEV(dev, &vdev->dev); /* Do we support "hardware" checksums? */ @@ -462,11 +535,18 @@ static int virtnet_probe(struct virtio_device *vdev) vi->dev = dev; vi->vdev = vdev; vdev->priv = vi; + vi->pages = NULL; /* If they give us a callback when all buffers are done, we don't need * the timer. */ vi->free_in_tasklet = virtio_has_feature(vdev,VIRTIO_F_NOTIFY_ON_EMPTY); + /* If we can receive ANY GSO packets, we must allocate large ones. */ + if (virtio_has_feature(vdev, VIRTIO_NET_F_GUEST_TSO4) + || virtio_has_feature(vdev, VIRTIO_NET_F_GUEST_TSO6) + || virtio_has_feature(vdev, VIRTIO_NET_F_GUEST_ECN)) + vi->big_packets = true; + /* We expect two virtqueues, receive then send. */ vi->rvq = vdev->config->find_vq(vdev, 0, skb_recv_done); if (IS_ERR(vi->rvq)) { @@ -541,6 +621,10 @@ static void virtnet_remove(struct virtio_device *vdev) vdev->config->del_vq(vi->svq); vdev->config->del_vq(vi->rvq); unregister_netdev(vi->dev); + + while (vi->pages) + __free_pages(get_a_page(vi, GFP_KERNEL), 0); + free_netdev(vi->dev); } @@ -553,7 +637,9 @@ static unsigned int features[] = { VIRTIO_NET_F_CSUM, VIRTIO_NET_F_GUEST_CSUM, VIRTIO_NET_F_GSO, VIRTIO_NET_F_MAC, VIRTIO_NET_F_HOST_TSO4, VIRTIO_NET_F_HOST_UFO, VIRTIO_NET_F_HOST_TSO6, - VIRTIO_NET_F_HOST_ECN, VIRTIO_F_NOTIFY_ON_EMPTY, + VIRTIO_NET_F_HOST_ECN, VIRTIO_NET_F_GUEST_TSO4, VIRTIO_NET_F_GUEST_TSO6, + VIRTIO_NET_F_GUEST_ECN, /* We don't yet handle UFO input. */ + VIRTIO_F_NOTIFY_ON_EMPTY, }; static struct virtio_driver virtio_net = { diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c index 217d506..d9769c5 100644 --- a/drivers/net/wireless/ath5k/base.c +++ b/drivers/net/wireless/ath5k/base.c @@ -1166,7 +1166,7 @@ ath5k_rxbuf_setup(struct ath5k_softc *sc, struct ath5k_buf *bf) bf->skb = skb; bf->skbaddr = pci_map_single(sc->pdev, skb->data, sc->rxbufsize, PCI_DMA_FROMDEVICE); - if (unlikely(pci_dma_mapping_error(bf->skbaddr))) { + if (unlikely(pci_dma_mapping_error(sc->pdev, bf->skbaddr))) { ATH5K_ERR(sc, "%s: DMA mapping failed\n", __func__); dev_kfree_skb(skb); bf->skb = NULL; @@ -1918,7 +1918,7 @@ ath5k_beacon_setup(struct ath5k_softc *sc, struct ath5k_buf *bf) ATH5K_DBG(sc, ATH5K_DEBUG_BEACON, "skb %p [data %p len %u] " "skbaddr %llx\n", skb, skb->data, skb->len, (unsigned long long)bf->skbaddr); - if (pci_dma_mapping_error(bf->skbaddr)) { + if (pci_dma_mapping_error(sc->pdev, bf->skbaddr)) { ATH5K_ERR(sc, "beacon DMA mapping failed\n"); return -EIO; } diff --git a/drivers/of/Kconfig b/drivers/of/Kconfig index 3a7a11a..1d7ec31 100644 --- a/drivers/of/Kconfig +++ b/drivers/of/Kconfig @@ -4,7 +4,7 @@ config OF_DEVICE config OF_GPIO def_bool y - depends on OF && PPC_OF && HAVE_GPIO_LIB + depends on OF && PPC_OF && GPIOLIB help OpenFirmware GPIO accessors diff --git a/drivers/of/of_i2c.c b/drivers/of/of_i2c.c index 5c015d3..344e1b0 100644 --- a/drivers/of/of_i2c.c +++ b/drivers/of/of_i2c.c @@ -91,8 +91,6 @@ void of_register_i2c_devices(struct i2c_adapter *adap, } info.irq = irq_of_parse_and_map(node, 0); - if (info.irq == NO_IRQ) - info.irq = -1; if (of_find_i2c_driver(node, &info) < 0) { irq_dispose_mapping(info.irq); diff --git a/drivers/parport/ieee1284.c b/drivers/parport/ieee1284.c index 0338b09..e970594 100644 --- a/drivers/parport/ieee1284.c +++ b/drivers/parport/ieee1284.c @@ -199,8 +199,6 @@ int parport_wait_peripheral(struct parport *port, /* 40ms of slow polling. */ deadline = jiffies + msecs_to_jiffies(40); while (time_before (jiffies, deadline)) { - int ret; - if (signal_pending (current)) return -EINTR; diff --git a/drivers/parport/parport_ax88796.c b/drivers/parport/parport_ax88796.c index 4ec220b..6938d2e 100644 --- a/drivers/parport/parport_ax88796.c +++ b/drivers/parport/parport_ax88796.c @@ -406,6 +406,8 @@ static int parport_ax88796_resume(struct platform_device *dev) #define parport_ax88796_resume NULL #endif +MODULE_ALIAS("platform:ax88796-pp"); + static struct platform_driver axdrv = { .driver = { .name = "ax88796-pp", diff --git a/drivers/parport/parport_cs.c b/drivers/parport/parport_cs.c index 802a81d..00e1d96 100644 --- a/drivers/parport/parport_cs.c +++ b/drivers/parport/parport_cs.c @@ -235,7 +235,7 @@ failed: ======================================================================*/ -void parport_cs_release(struct pcmcia_device *link) +static void parport_cs_release(struct pcmcia_device *link) { parport_info_t *info = link->priv; diff --git a/drivers/parport/parport_pc.c b/drivers/parport/parport_pc.c index e0c2a45..8a846ad 100644 --- a/drivers/parport/parport_pc.c +++ b/drivers/parport/parport_pc.c @@ -2867,7 +2867,7 @@ static struct parport_pc_pci { * and 840 locks up if you write 1 to bit 2! */ /* oxsemi_952 */ { 1, { { 0, 1 }, } }, /* oxsemi_954 */ { 1, { { 0, -1 }, } }, - /* oxsemi_840 */ { 1, { { 0, -1 }, } }, + /* oxsemi_840 */ { 1, { { 0, 1 }, } }, /* aks_0100 */ { 1, { { 0, -1 }, } }, /* mobility_pp */ { 1, { { 0, 1 }, } }, /* netmos_9705 */ { 1, { { 0, -1 }, } }, /* untested */ diff --git a/drivers/parport/procfs.c b/drivers/parport/procfs.c index d950fc3..554e11f 100644 --- a/drivers/parport/procfs.c +++ b/drivers/parport/procfs.c @@ -429,9 +429,6 @@ struct parport_default_sysctl_table ctl_table dev_dir[2]; }; -extern unsigned long parport_default_timeslice; -extern int parport_default_spintime; - static struct parport_default_sysctl_table parport_default_sysctl_table = { .sysctl_header = NULL, diff --git a/drivers/pci/dmar.c b/drivers/pci/dmar.c index f941f60..8bf86ae 100644 --- a/drivers/pci/dmar.c +++ b/drivers/pci/dmar.c @@ -317,10 +317,8 @@ int __init dmar_table_init(void) return -ENODEV; } - if (list_empty(&dmar_rmrr_units)) { + if (list_empty(&dmar_rmrr_units)) printk(KERN_INFO PREFIX "No RMRR found\n"); - return -ENODEV; - } return 0; } diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index d00f0e0..e9c3562 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -1040,7 +1040,7 @@ int pci_set_pcie_reset_state(struct pci_dev *dev, enum pcie_reset_state state) * @dev: PCI device to handle. * @state: PCI state from which device will issue PME#. */ -static bool pci_pme_capable(struct pci_dev *dev, pci_power_t state) +bool pci_pme_capable(struct pci_dev *dev, pci_power_t state) { if (!dev->pm_cap) return false; @@ -1123,17 +1123,10 @@ int pci_enable_wake(struct pci_dev *dev, pci_power_t state, int enable) } /** - * pci_prepare_to_sleep - prepare PCI device for system-wide transition into a sleep state - * @dev: Device to handle. - * - * Choose the power state appropriate for the device depending on whether - * it can wake up the system and/or is power manageable by the platform - * (PCI_D3hot is the default) and put the device into that state. */ -int pci_prepare_to_sleep(struct pci_dev *dev) +pci_power_t pci_target_state(struct pci_dev *dev) { pci_power_t target_state = PCI_D3hot; - int error; if (platform_pci_power_manageable(dev)) { /* @@ -1160,7 +1153,7 @@ int pci_prepare_to_sleep(struct pci_dev *dev) * to generate PME#. */ if (!dev->pm_cap) - return -EIO; + return PCI_POWER_ERROR; if (dev->pme_support) { while (target_state @@ -1169,6 +1162,25 @@ int pci_prepare_to_sleep(struct pci_dev *dev) } } + return target_state; +} + +/** + * pci_prepare_to_sleep - prepare PCI device for system-wide transition into a sleep state + * @dev: Device to handle. + * + * Choose the power state appropriate for the device depending on whether + * it can wake up the system and/or is power manageable by the platform + * (PCI_D3hot is the default) and put the device into that state. + */ +int pci_prepare_to_sleep(struct pci_dev *dev) +{ + pci_power_t target_state = pci_target_state(dev); + int error; + + if (target_state == PCI_POWER_ERROR) + return -EIO; + pci_enable_wake(dev, target_state, true); error = pci_set_power_state(dev, target_state); @@ -1918,7 +1930,9 @@ EXPORT_SYMBOL(pci_select_bars); EXPORT_SYMBOL(pci_set_power_state); EXPORT_SYMBOL(pci_save_state); EXPORT_SYMBOL(pci_restore_state); +EXPORT_SYMBOL(pci_pme_capable); EXPORT_SYMBOL(pci_enable_wake); +EXPORT_SYMBOL(pci_target_state); EXPORT_SYMBOL(pci_prepare_to_sleep); EXPORT_SYMBOL(pci_back_from_sleep); EXPORT_SYMBOL_GPL(pci_set_pcie_reset_state); diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c index 4400dff..e1098c3 100644 --- a/drivers/pci/proc.c +++ b/drivers/pci/proc.c @@ -88,7 +88,7 @@ proc_bus_pci_read(struct file *file, char __user *buf, size_t nbytes, loff_t *pp if ((pos & 3) && cnt > 2) { unsigned short val; pci_user_read_config_word(dev, pos, &val); - __put_user(cpu_to_le16(val), (unsigned short __user *) buf); + __put_user(cpu_to_le16(val), (__le16 __user *) buf); buf += 2; pos += 2; cnt -= 2; @@ -97,7 +97,7 @@ proc_bus_pci_read(struct file *file, char __user *buf, size_t nbytes, loff_t *pp while (cnt >= 4) { unsigned int val; pci_user_read_config_dword(dev, pos, &val); - __put_user(cpu_to_le32(val), (unsigned int __user *) buf); + __put_user(cpu_to_le32(val), (__le32 __user *) buf); buf += 4; pos += 4; cnt -= 4; @@ -106,7 +106,7 @@ proc_bus_pci_read(struct file *file, char __user *buf, size_t nbytes, loff_t *pp if (cnt >= 2) { unsigned short val; pci_user_read_config_word(dev, pos, &val); - __put_user(cpu_to_le16(val), (unsigned short __user *) buf); + __put_user(cpu_to_le16(val), (__le16 __user *) buf); buf += 2; pos += 2; cnt -= 2; @@ -156,8 +156,8 @@ proc_bus_pci_write(struct file *file, const char __user *buf, size_t nbytes, lof } if ((pos & 3) && cnt > 2) { - unsigned short val; - __get_user(val, (unsigned short __user *) buf); + __le16 val; + __get_user(val, (__le16 __user *) buf); pci_user_write_config_word(dev, pos, le16_to_cpu(val)); buf += 2; pos += 2; @@ -165,8 +165,8 @@ proc_bus_pci_write(struct file *file, const char __user *buf, size_t nbytes, lof } while (cnt >= 4) { - unsigned int val; - __get_user(val, (unsigned int __user *) buf); + __le32 val; + __get_user(val, (__le32 __user *) buf); pci_user_write_config_dword(dev, pos, le32_to_cpu(val)); buf += 4; pos += 4; @@ -174,8 +174,8 @@ proc_bus_pci_write(struct file *file, const char __user *buf, size_t nbytes, lof } if (cnt >= 2) { - unsigned short val; - __get_user(val, (unsigned short __user *) buf); + __le16 val; + __get_user(val, (__le16 __user *) buf); pci_user_write_config_word(dev, pos, le16_to_cpu(val)); buf += 2; pos += 2; diff --git a/drivers/pcmcia/electra_cf.c b/drivers/pcmcia/electra_cf.c index c21f9a9..a34284b1 100644 --- a/drivers/pcmcia/electra_cf.c +++ b/drivers/pcmcia/electra_cf.c @@ -28,6 +28,7 @@ #include <linux/init.h> #include <linux/delay.h> #include <linux/interrupt.h> +#include <linux/mm.h> #include <linux/vmalloc.h> #include <linux/of_platform.h> diff --git a/drivers/pnp/base.h b/drivers/pnp/base.h index e3fa9a2..9fd7bb9 100644 --- a/drivers/pnp/base.h +++ b/drivers/pnp/base.h @@ -19,7 +19,6 @@ struct pnp_id *pnp_add_id(struct pnp_dev *dev, char *id); int pnp_interface_attach_device(struct pnp_dev *dev); int pnp_add_card(struct pnp_card *card); -struct pnp_id *pnp_add_card_id(struct pnp_card *card, char *id); void pnp_remove_card(struct pnp_card *card); int pnp_add_card_device(struct pnp_card *card, struct pnp_dev *dev); void pnp_remove_card_device(struct pnp_dev *dev); diff --git a/drivers/pnp/card.c b/drivers/pnp/card.c index a762a41..e75b060 100644 --- a/drivers/pnp/card.c +++ b/drivers/pnp/card.c @@ -8,6 +8,7 @@ #include <linux/ctype.h> #include <linux/slab.h> #include <linux/pnp.h> +#include <linux/dma-mapping.h> #include "base.h" LIST_HEAD(pnp_cards); @@ -101,7 +102,7 @@ static int card_probe(struct pnp_card *card, struct pnp_card_driver *drv) * @id: pointer to a pnp_id structure * @card: pointer to the desired card */ -struct pnp_id *pnp_add_card_id(struct pnp_card *card, char *id) +static struct pnp_id *pnp_add_card_id(struct pnp_card *card, char *id) { struct pnp_id *dev_id, *ptr; @@ -167,6 +168,9 @@ struct pnp_card *pnp_alloc_card(struct pnp_protocol *protocol, int id, char *pnp sprintf(card->dev.bus_id, "%02x:%02x", card->protocol->number, card->number); + card->dev.coherent_dma_mask = DMA_24BIT_MASK; + card->dev.dma_mask = &card->dev.coherent_dma_mask; + dev_id = pnp_add_card_id(card, pnpid); if (!dev_id) { kfree(card); diff --git a/drivers/pnp/quirks.c b/drivers/pnp/quirks.c index 55f55ed..0bdf9b8 100644 --- a/drivers/pnp/quirks.c +++ b/drivers/pnp/quirks.c @@ -245,15 +245,17 @@ static void quirk_system_pci_resources(struct pnp_dev *dev) */ for_each_pci_dev(pdev) { for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { - if (!(pci_resource_flags(pdev, i) & IORESOURCE_MEM) || - pci_resource_len(pdev, i) == 0) + unsigned int type; + + type = pci_resource_flags(pdev, i) & + (IORESOURCE_IO | IORESOURCE_MEM); + if (!type || pci_resource_len(pdev, i) == 0) continue; pci_start = pci_resource_start(pdev, i); pci_end = pci_resource_end(pdev, i); for (j = 0; - (res = pnp_get_resource(dev, IORESOURCE_MEM, j)); - j++) { + (res = pnp_get_resource(dev, type, j)); j++) { if (res->start == 0 && res->end == 0) continue; @@ -283,9 +285,10 @@ static void quirk_system_pci_resources(struct pnp_dev *dev) * the PCI region, and that might prevent a PCI * driver from requesting its resources. */ - dev_warn(&dev->dev, "mem resource " + dev_warn(&dev->dev, "%s resource " "(0x%llx-0x%llx) overlaps %s BAR %d " "(0x%llx-0x%llx), disabling\n", + pnp_resource_type_name(res), (unsigned long long) pnp_start, (unsigned long long) pnp_end, pci_name(pdev), i, diff --git a/drivers/power/ds2760_battery.c b/drivers/power/ds2760_battery.c index 71be36f..308ddb2 100644 --- a/drivers/power/ds2760_battery.c +++ b/drivers/power/ds2760_battery.c @@ -433,6 +433,8 @@ static int ds2760_battery_resume(struct platform_device *pdev) #endif /* CONFIG_PM */ +MODULE_ALIAS("platform:ds2760-battery"); + static struct platform_driver ds2760_battery_driver = { .driver = { .name = "ds2760-battery", diff --git a/drivers/power/pda_power.c b/drivers/power/pda_power.c index 82810b7bf..0471ec7 100644 --- a/drivers/power/pda_power.c +++ b/drivers/power/pda_power.c @@ -362,6 +362,8 @@ static int pda_power_resume(struct platform_device *pdev) #define pda_power_resume NULL #endif /* CONFIG_PM */ +MODULE_ALIAS("platform:pda-power"); + static struct platform_driver pda_power_pdrv = { .driver = { .name = "pda-power", diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig index fc85bf2..90ab738 100644 --- a/drivers/rtc/Kconfig +++ b/drivers/rtc/Kconfig @@ -273,6 +273,25 @@ comment "SPI RTC drivers" if SPI_MASTER +config RTC_DRV_M41T94 + tristate "ST M41T94" + help + If you say yes here you will get support for the + ST M41T94 SPI RTC chip. + + This driver can also be built as a module. If so, the module + will be called rtc-m41t94. + +config RTC_DRV_DS1305 + tristate "Dallas/Maxim DS1305/DS1306" + help + Select this driver to get support for the Dallas/Maxim DS1305 + and DS1306 real time clock chips. These support a trickle + charger, alarms, and NVRAM in addition to the clock. + + This driver can also be built as a module. If so, the module + will be called rtc-ds1305. + config RTC_DRV_MAX6902 tristate "Maxim MAX6902" help diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile index b5d9d67..18622ef 100644 --- a/drivers/rtc/Makefile +++ b/drivers/rtc/Makefile @@ -24,6 +24,7 @@ obj-$(CONFIG_RTC_DRV_BFIN) += rtc-bfin.o obj-$(CONFIG_RTC_DRV_CMOS) += rtc-cmos.o obj-$(CONFIG_RTC_DRV_DS1216) += rtc-ds1216.o obj-$(CONFIG_RTC_DRV_DS1302) += rtc-ds1302.o +obj-$(CONFIG_RTC_DRV_DS1305) += rtc-ds1305.o obj-$(CONFIG_RTC_DRV_DS1307) += rtc-ds1307.o obj-$(CONFIG_RTC_DRV_DS1374) += rtc-ds1374.o obj-$(CONFIG_RTC_DRV_DS1511) += rtc-ds1511.o @@ -34,6 +35,7 @@ obj-$(CONFIG_RTC_DRV_EP93XX) += rtc-ep93xx.o obj-$(CONFIG_RTC_DRV_FM3130) += rtc-fm3130.o obj-$(CONFIG_RTC_DRV_ISL1208) += rtc-isl1208.o obj-$(CONFIG_RTC_DRV_M41T80) += rtc-m41t80.o +obj-$(CONFIG_RTC_DRV_M41T94) += rtc-m41t94.o obj-$(CONFIG_RTC_DRV_M48T59) += rtc-m48t59.o obj-$(CONFIG_RTC_DRV_M48T86) += rtc-m48t86.o obj-$(CONFIG_RTC_DRV_MAX6900) += rtc-max6900.o diff --git a/drivers/rtc/rtc-at91rm9200.c b/drivers/rtc/rtc-at91rm9200.c index 9c3db93..cd32d05 100644 --- a/drivers/rtc/rtc-at91rm9200.c +++ b/drivers/rtc/rtc-at91rm9200.c @@ -171,8 +171,10 @@ static int at91_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm) | BIN2BCD(tm.tm_mday) << 24 | AT91_RTC_DATEEN | AT91_RTC_MTHEN); - if (alrm->enabled) + if (alrm->enabled) { + at91_sys_write(AT91_RTC_SCCR, AT91_RTC_ALARM); at91_sys_write(AT91_RTC_IER, AT91_RTC_ALARM); + } pr_debug("%s(): %4d-%02d-%02d %02d:%02d:%02d\n", __func__, at91_alarm_year, tm.tm_mon, tm.tm_mday, tm.tm_hour, @@ -191,28 +193,22 @@ static int at91_rtc_ioctl(struct device *dev, unsigned int cmd, pr_debug("%s(): cmd=%08x, arg=%08lx.\n", __func__, cmd, arg); + /* important: scrub old status before enabling IRQs */ switch (cmd) { case RTC_AIE_OFF: /* alarm off */ at91_sys_write(AT91_RTC_IDR, AT91_RTC_ALARM); break; case RTC_AIE_ON: /* alarm on */ + at91_sys_write(AT91_RTC_SCCR, AT91_RTC_ALARM); at91_sys_write(AT91_RTC_IER, AT91_RTC_ALARM); break; case RTC_UIE_OFF: /* update off */ - case RTC_PIE_OFF: /* periodic off */ at91_sys_write(AT91_RTC_IDR, AT91_RTC_SECEV); break; case RTC_UIE_ON: /* update on */ - case RTC_PIE_ON: /* periodic on */ + at91_sys_write(AT91_RTC_SCCR, AT91_RTC_SECEV); at91_sys_write(AT91_RTC_IER, AT91_RTC_SECEV); break; - case RTC_IRQP_READ: /* read periodic alarm frequency */ - ret = put_user(AT91_RTC_FREQ, (unsigned long *) arg); - break; - case RTC_IRQP_SET: /* set periodic alarm frequency */ - if (arg != AT91_RTC_FREQ) - ret = -EINVAL; - break; default: ret = -ENOIOCTLCMD; break; diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c index d7bb9ba..6ea349a 100644 --- a/drivers/rtc/rtc-cmos.c +++ b/drivers/rtc/rtc-cmos.c @@ -36,25 +36,9 @@ #include <linux/platform_device.h> #include <linux/mod_devicetable.h> -#ifdef CONFIG_HPET_EMULATE_RTC -#include <asm/hpet.h> -#endif - /* this is for "generic access to PC-style RTC" using CMOS_READ/CMOS_WRITE */ #include <asm-generic/rtc.h> -#ifndef CONFIG_HPET_EMULATE_RTC -#define is_hpet_enabled() 0 -#define hpet_set_alarm_time(hrs, min, sec) do { } while (0) -#define hpet_set_periodic_freq(arg) 0 -#define hpet_mask_rtc_irq_bit(arg) do { } while (0) -#define hpet_set_rtc_irq_bit(arg) do { } while (0) -#define hpet_rtc_timer_init() do { } while (0) -#define hpet_register_irq_handler(h) 0 -#define hpet_unregister_irq_handler(h) do { } while (0) -extern irqreturn_t hpet_rtc_interrupt(int irq, void *dev_id); -#endif - struct cmos_rtc { struct rtc_device *rtc; struct device *dev; @@ -93,6 +77,72 @@ static inline int is_intr(u8 rtc_intr) /*----------------------------------------------------------------*/ +/* Much modern x86 hardware has HPETs (10+ MHz timers) which, because + * many BIOS programmers don't set up "sane mode" IRQ routing, are mostly + * used in a broken "legacy replacement" mode. The breakage includes + * HPET #1 hijacking the IRQ for this RTC, and being unavailable for + * other (better) use. + * + * When that broken mode is in use, platform glue provides a partial + * emulation of hardware RTC IRQ facilities using HPET #1. We don't + * want to use HPET for anything except those IRQs though... + */ +#ifdef CONFIG_HPET_EMULATE_RTC +#include <asm/hpet.h> +#else + +static inline int is_hpet_enabled(void) +{ + return 0; +} + +static inline int hpet_mask_rtc_irq_bit(unsigned long mask) +{ + return 0; +} + +static inline int hpet_set_rtc_irq_bit(unsigned long mask) +{ + return 0; +} + +static inline int +hpet_set_alarm_time(unsigned char hrs, unsigned char min, unsigned char sec) +{ + return 0; +} + +static inline int hpet_set_periodic_freq(unsigned long freq) +{ + return 0; +} + +static inline int hpet_rtc_dropped_irq(void) +{ + return 0; +} + +static inline int hpet_rtc_timer_init(void) +{ + return 0; +} + +extern irq_handler_t hpet_rtc_interrupt; + +static inline int hpet_register_irq_handler(irq_handler_t handler) +{ + return 0; +} + +static inline int hpet_unregister_irq_handler(irq_handler_t handler) +{ + return 0; +} + +#endif + +/*----------------------------------------------------------------*/ + static int cmos_read_time(struct device *dev, struct rtc_time *t) { /* REVISIT: if the clock has a "century" register, use @@ -185,11 +235,56 @@ static int cmos_read_alarm(struct device *dev, struct rtc_wkalrm *t) return 0; } +static void cmos_checkintr(struct cmos_rtc *cmos, unsigned char rtc_control) +{ + unsigned char rtc_intr; + + /* NOTE after changing RTC_xIE bits we always read INTR_FLAGS; + * allegedly some older rtcs need that to handle irqs properly + */ + rtc_intr = CMOS_READ(RTC_INTR_FLAGS); + + if (is_hpet_enabled()) + return; + + rtc_intr &= (rtc_control & RTC_IRQMASK) | RTC_IRQF; + if (is_intr(rtc_intr)) + rtc_update_irq(cmos->rtc, 1, rtc_intr); +} + +static void cmos_irq_enable(struct cmos_rtc *cmos, unsigned char mask) +{ + unsigned char rtc_control; + + /* flush any pending IRQ status, notably for update irqs, + * before we enable new IRQs + */ + rtc_control = CMOS_READ(RTC_CONTROL); + cmos_checkintr(cmos, rtc_control); + + rtc_control |= mask; + CMOS_WRITE(rtc_control, RTC_CONTROL); + hpet_set_rtc_irq_bit(mask); + + cmos_checkintr(cmos, rtc_control); +} + +static void cmos_irq_disable(struct cmos_rtc *cmos, unsigned char mask) +{ + unsigned char rtc_control; + + rtc_control = CMOS_READ(RTC_CONTROL); + rtc_control &= ~mask; + CMOS_WRITE(rtc_control, RTC_CONTROL); + hpet_mask_rtc_irq_bit(mask); + + cmos_checkintr(cmos, rtc_control); +} + static int cmos_set_alarm(struct device *dev, struct rtc_wkalrm *t) { struct cmos_rtc *cmos = dev_get_drvdata(dev); unsigned char mon, mday, hrs, min, sec; - unsigned char rtc_control, rtc_intr; if (!is_valid_irq(cmos->irq)) return -EIO; @@ -213,17 +308,10 @@ static int cmos_set_alarm(struct device *dev, struct rtc_wkalrm *t) sec = t->time.tm_sec; sec = (sec < 60) ? BIN2BCD(sec) : 0xff; - hpet_set_alarm_time(t->time.tm_hour, t->time.tm_min, t->time.tm_sec); spin_lock_irq(&rtc_lock); /* next rtc irq must not be from previous alarm setting */ - rtc_control = CMOS_READ(RTC_CONTROL); - rtc_control &= ~RTC_AIE; - CMOS_WRITE(rtc_control, RTC_CONTROL); - rtc_intr = CMOS_READ(RTC_INTR_FLAGS); - rtc_intr &= (rtc_control & RTC_IRQMASK) | RTC_IRQF; - if (is_intr(rtc_intr)) - rtc_update_irq(cmos->rtc, 1, rtc_intr); + cmos_irq_disable(cmos, RTC_AIE); /* update alarm */ CMOS_WRITE(hrs, RTC_HOURS_ALARM); @@ -237,14 +325,13 @@ static int cmos_set_alarm(struct device *dev, struct rtc_wkalrm *t) CMOS_WRITE(mon, cmos->mon_alrm); } - if (t->enabled) { - rtc_control |= RTC_AIE; - CMOS_WRITE(rtc_control, RTC_CONTROL); - rtc_intr = CMOS_READ(RTC_INTR_FLAGS); - rtc_intr &= (rtc_control & RTC_IRQMASK) | RTC_IRQF; - if (is_intr(rtc_intr)) - rtc_update_irq(cmos->rtc, 1, rtc_intr); - } + /* FIXME the HPET alarm glue currently ignores day_alrm + * and mon_alrm ... + */ + hpet_set_alarm_time(t->time.tm_hour, t->time.tm_min, t->time.tm_sec); + + if (t->enabled) + cmos_irq_enable(cmos, RTC_AIE); spin_unlock_irq(&rtc_lock); @@ -267,8 +354,8 @@ static int cmos_irq_set_freq(struct device *dev, int freq) f = 16 - f; spin_lock_irqsave(&rtc_lock, flags); - if (!hpet_set_periodic_freq(freq)) - CMOS_WRITE(RTC_REF_CLCK_32KHZ | f, RTC_FREQ_SELECT); + hpet_set_periodic_freq(freq); + CMOS_WRITE(RTC_REF_CLCK_32KHZ | f, RTC_FREQ_SELECT); spin_unlock_irqrestore(&rtc_lock, flags); return 0; @@ -277,26 +364,17 @@ static int cmos_irq_set_freq(struct device *dev, int freq) static int cmos_irq_set_state(struct device *dev, int enabled) { struct cmos_rtc *cmos = dev_get_drvdata(dev); - unsigned char rtc_control, rtc_intr; unsigned long flags; if (!is_valid_irq(cmos->irq)) return -ENXIO; spin_lock_irqsave(&rtc_lock, flags); - rtc_control = CMOS_READ(RTC_CONTROL); if (enabled) - rtc_control |= RTC_PIE; + cmos_irq_enable(cmos, RTC_PIE); else - rtc_control &= ~RTC_PIE; - - CMOS_WRITE(rtc_control, RTC_CONTROL); - - rtc_intr = CMOS_READ(RTC_INTR_FLAGS); - rtc_intr &= (rtc_control & RTC_IRQMASK) | RTC_IRQF; - if (is_intr(rtc_intr)) - rtc_update_irq(cmos->rtc, 1, rtc_intr); + cmos_irq_disable(cmos, RTC_PIE); spin_unlock_irqrestore(&rtc_lock, flags); return 0; @@ -308,7 +386,6 @@ static int cmos_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) { struct cmos_rtc *cmos = dev_get_drvdata(dev); - unsigned char rtc_control, rtc_intr; unsigned long flags; switch (cmd) { @@ -316,51 +393,29 @@ cmos_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) case RTC_AIE_ON: case RTC_UIE_OFF: case RTC_UIE_ON: - case RTC_PIE_OFF: - case RTC_PIE_ON: if (!is_valid_irq(cmos->irq)) return -EINVAL; break; + /* PIE ON/OFF is handled by cmos_irq_set_state() */ default: return -ENOIOCTLCMD; } spin_lock_irqsave(&rtc_lock, flags); - rtc_control = CMOS_READ(RTC_CONTROL); switch (cmd) { case RTC_AIE_OFF: /* alarm off */ - rtc_control &= ~RTC_AIE; - hpet_mask_rtc_irq_bit(RTC_AIE); + cmos_irq_disable(cmos, RTC_AIE); break; case RTC_AIE_ON: /* alarm on */ - rtc_control |= RTC_AIE; - hpet_set_rtc_irq_bit(RTC_AIE); + cmos_irq_enable(cmos, RTC_AIE); break; case RTC_UIE_OFF: /* update off */ - rtc_control &= ~RTC_UIE; - hpet_mask_rtc_irq_bit(RTC_UIE); + cmos_irq_disable(cmos, RTC_UIE); break; case RTC_UIE_ON: /* update on */ - rtc_control |= RTC_UIE; - hpet_set_rtc_irq_bit(RTC_UIE); - break; - case RTC_PIE_OFF: /* periodic off */ - rtc_control &= ~RTC_PIE; - hpet_mask_rtc_irq_bit(RTC_PIE); - break; - case RTC_PIE_ON: /* periodic on */ - rtc_control |= RTC_PIE; - hpet_set_rtc_irq_bit(RTC_PIE); + cmos_irq_enable(cmos, RTC_UIE); break; } - if (!is_hpet_enabled()) - CMOS_WRITE(rtc_control, RTC_CONTROL); - - rtc_intr = CMOS_READ(RTC_INTR_FLAGS); - rtc_intr &= (rtc_control & RTC_IRQMASK) | RTC_IRQF; - if (is_intr(rtc_intr)) - rtc_update_irq(cmos->rtc, 1, rtc_intr); - spin_unlock_irqrestore(&rtc_lock, flags); return 0; } @@ -502,27 +557,29 @@ static irqreturn_t cmos_interrupt(int irq, void *p) u8 rtc_control; spin_lock(&rtc_lock); - /* - * In this case it is HPET RTC interrupt handler - * calling us, with the interrupt information - * passed as arg1, instead of irq. + + /* When the HPET interrupt handler calls us, the interrupt + * status is passed as arg1 instead of the irq number. But + * always clear irq status, even when HPET is in the way. + * + * Note that HPET and RTC are almost certainly out of phase, + * giving different IRQ status ... */ + irqstat = CMOS_READ(RTC_INTR_FLAGS); + rtc_control = CMOS_READ(RTC_CONTROL); if (is_hpet_enabled()) irqstat = (unsigned long)irq & 0xF0; - else { - irqstat = CMOS_READ(RTC_INTR_FLAGS); - rtc_control = CMOS_READ(RTC_CONTROL); - irqstat &= (rtc_control & RTC_IRQMASK) | RTC_IRQF; - } + irqstat &= (rtc_control & RTC_IRQMASK) | RTC_IRQF; /* All Linux RTC alarms should be treated as if they were oneshot. * Similar code may be needed in system wakeup paths, in case the * alarm woke the system. */ if (irqstat & RTC_AIE) { - rtc_control = CMOS_READ(RTC_CONTROL); rtc_control &= ~RTC_AIE; CMOS_WRITE(rtc_control, RTC_CONTROL); + hpet_mask_rtc_irq_bit(RTC_AIE); + CMOS_READ(RTC_INTR_FLAGS); } spin_unlock(&rtc_lock); @@ -629,18 +686,13 @@ cmos_do_probe(struct device *dev, struct resource *ports, int rtc_irq) * do something about other clock frequencies. */ cmos_rtc.rtc->irq_freq = 1024; - if (!hpet_set_periodic_freq(cmos_rtc.rtc->irq_freq)) - CMOS_WRITE(RTC_REF_CLCK_32KHZ | 0x06, RTC_FREQ_SELECT); + hpet_set_periodic_freq(cmos_rtc.rtc->irq_freq); + CMOS_WRITE(RTC_REF_CLCK_32KHZ | 0x06, RTC_FREQ_SELECT); + + /* disable irqs */ + cmos_irq_disable(&cmos_rtc, RTC_PIE | RTC_AIE | RTC_UIE); - /* disable irqs. - * - * NOTE after changing RTC_xIE bits we always read INTR_FLAGS; - * allegedly some older rtcs need that to handle irqs properly - */ rtc_control = CMOS_READ(RTC_CONTROL); - rtc_control &= ~(RTC_PIE | RTC_AIE | RTC_UIE); - CMOS_WRITE(rtc_control, RTC_CONTROL); - CMOS_READ(RTC_INTR_FLAGS); spin_unlock_irq(&rtc_lock); @@ -687,7 +739,7 @@ cmos_do_probe(struct device *dev, struct resource *ports, int rtc_irq) goto cleanup2; } - pr_info("%s: alarms up to one %s%s\n", + pr_info("%s: alarms up to one %s%s%s\n", cmos_rtc.rtc->dev.bus_id, is_valid_irq(rtc_irq) ? (cmos_rtc.mon_alrm @@ -695,8 +747,8 @@ cmos_do_probe(struct device *dev, struct resource *ports, int rtc_irq) : (cmos_rtc.day_alrm ? "month" : "day")) : "no", - cmos_rtc.century ? ", y3k" : "" - ); + cmos_rtc.century ? ", y3k" : "", + is_hpet_enabled() ? ", hpet irqs" : ""); return 0; @@ -713,13 +765,8 @@ cleanup0: static void cmos_do_shutdown(void) { - unsigned char rtc_control; - spin_lock_irq(&rtc_lock); - rtc_control = CMOS_READ(RTC_CONTROL); - rtc_control &= ~(RTC_PIE|RTC_AIE|RTC_UIE); - CMOS_WRITE(rtc_control, RTC_CONTROL); - CMOS_READ(RTC_INTR_FLAGS); + cmos_irq_disable(&cmos_rtc, RTC_IRQMASK); spin_unlock_irq(&rtc_lock); } @@ -760,17 +807,17 @@ static int cmos_suspend(struct device *dev, pm_message_t mesg) spin_lock_irq(&rtc_lock); cmos->suspend_ctrl = tmp = CMOS_READ(RTC_CONTROL); if (tmp & (RTC_PIE|RTC_AIE|RTC_UIE)) { - unsigned char irqstat; + unsigned char mask; if (do_wake) - tmp &= ~(RTC_PIE|RTC_UIE); + mask = RTC_IRQMASK & ~RTC_AIE; else - tmp &= ~(RTC_PIE|RTC_AIE|RTC_UIE); + mask = RTC_IRQMASK; + tmp &= ~mask; CMOS_WRITE(tmp, RTC_CONTROL); - irqstat = CMOS_READ(RTC_INTR_FLAGS); - irqstat &= (tmp & RTC_IRQMASK) | RTC_IRQF; - if (is_intr(irqstat)) - rtc_update_irq(cmos->rtc, 1, irqstat); + hpet_mask_rtc_irq_bit(mask); + + cmos_checkintr(cmos, tmp); } spin_unlock_irq(&rtc_lock); @@ -796,7 +843,8 @@ static int cmos_resume(struct device *dev) unsigned char tmp = cmos->suspend_ctrl; /* re-enable any irqs previously active */ - if (tmp & (RTC_PIE|RTC_AIE|RTC_UIE)) { + if (tmp & RTC_IRQMASK) { + unsigned char mask; if (cmos->enabled_wake) { if (cmos->wake_off) @@ -807,18 +855,28 @@ static int cmos_resume(struct device *dev) } spin_lock_irq(&rtc_lock); - CMOS_WRITE(tmp, RTC_CONTROL); - tmp = CMOS_READ(RTC_INTR_FLAGS); - tmp &= (cmos->suspend_ctrl & RTC_IRQMASK) | RTC_IRQF; - if (is_intr(tmp)) - rtc_update_irq(cmos->rtc, 1, tmp); + do { + CMOS_WRITE(tmp, RTC_CONTROL); + hpet_set_rtc_irq_bit(tmp & RTC_IRQMASK); + + mask = CMOS_READ(RTC_INTR_FLAGS); + mask &= (tmp & RTC_IRQMASK) | RTC_IRQF; + if (!is_hpet_enabled() || !is_intr(mask)) + break; + + /* force one-shot behavior if HPET blocked + * the wake alarm's irq + */ + rtc_update_irq(cmos->rtc, 1, mask); + tmp &= ~RTC_AIE; + hpet_mask_rtc_irq_bit(RTC_AIE); + } while (mask & RTC_AIE); spin_unlock_irq(&rtc_lock); } pr_debug("%s: resume, ctrl %02x\n", cmos_rtc.rtc->dev.bus_id, - cmos->suspend_ctrl); - + tmp); return 0; } diff --git a/drivers/rtc/rtc-dev.c b/drivers/rtc/rtc-dev.c index 0114a78..0a870b7 100644 --- a/drivers/rtc/rtc-dev.c +++ b/drivers/rtc/rtc-dev.c @@ -209,7 +209,7 @@ static unsigned int rtc_dev_poll(struct file *file, poll_table *wait) return (data != 0) ? (POLLIN | POLLRDNORM) : 0; } -static int rtc_dev_ioctl(struct inode *inode, struct file *file, +static long rtc_dev_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { int err = 0; @@ -219,6 +219,10 @@ static int rtc_dev_ioctl(struct inode *inode, struct file *file, struct rtc_wkalrm alarm; void __user *uarg = (void __user *) arg; + err = mutex_lock_interruptible(&rtc->ops_lock); + if (err) + return -EBUSY; + /* check that the calling task has appropriate permissions * for certain ioctls. doing this check here is useful * to avoid duplicate code in each driver. @@ -227,26 +231,31 @@ static int rtc_dev_ioctl(struct inode *inode, struct file *file, case RTC_EPOCH_SET: case RTC_SET_TIME: if (!capable(CAP_SYS_TIME)) - return -EACCES; + err = -EACCES; break; case RTC_IRQP_SET: if (arg > rtc->max_user_freq && !capable(CAP_SYS_RESOURCE)) - return -EACCES; + err = -EACCES; break; case RTC_PIE_ON: if (rtc->irq_freq > rtc->max_user_freq && !capable(CAP_SYS_RESOURCE)) - return -EACCES; + err = -EACCES; break; } + if (err) + goto done; + /* try the driver's ioctl interface */ if (ops->ioctl) { err = ops->ioctl(rtc->dev.parent, cmd, arg); - if (err != -ENOIOCTLCMD) + if (err != -ENOIOCTLCMD) { + mutex_unlock(&rtc->ops_lock); return err; + } } /* if the driver does not provide the ioctl interface @@ -265,15 +274,19 @@ static int rtc_dev_ioctl(struct inode *inode, struct file *file, switch (cmd) { case RTC_ALM_READ: + mutex_unlock(&rtc->ops_lock); + err = rtc_read_alarm(rtc, &alarm); if (err < 0) return err; if (copy_to_user(uarg, &alarm.time, sizeof(tm))) - return -EFAULT; - break; + err = -EFAULT; + return err; case RTC_ALM_SET: + mutex_unlock(&rtc->ops_lock); + if (copy_from_user(&alarm.time, uarg, sizeof(tm))) return -EFAULT; @@ -321,24 +334,26 @@ static int rtc_dev_ioctl(struct inode *inode, struct file *file, } } - err = rtc_set_alarm(rtc, &alarm); - break; + return rtc_set_alarm(rtc, &alarm); case RTC_RD_TIME: + mutex_unlock(&rtc->ops_lock); + err = rtc_read_time(rtc, &tm); if (err < 0) return err; if (copy_to_user(uarg, &tm, sizeof(tm))) - return -EFAULT; - break; + err = -EFAULT; + return err; case RTC_SET_TIME: + mutex_unlock(&rtc->ops_lock); + if (copy_from_user(&tm, uarg, sizeof(tm))) return -EFAULT; - err = rtc_set_time(rtc, &tm); - break; + return rtc_set_time(rtc, &tm); case RTC_PIE_ON: err = rtc_irq_set_state(rtc, NULL, 1); @@ -376,34 +391,37 @@ static int rtc_dev_ioctl(struct inode *inode, struct file *file, break; #endif case RTC_WKALM_SET: + mutex_unlock(&rtc->ops_lock); if (copy_from_user(&alarm, uarg, sizeof(alarm))) return -EFAULT; - err = rtc_set_alarm(rtc, &alarm); - break; + return rtc_set_alarm(rtc, &alarm); case RTC_WKALM_RD: + mutex_unlock(&rtc->ops_lock); err = rtc_read_alarm(rtc, &alarm); if (err < 0) return err; if (copy_to_user(uarg, &alarm, sizeof(alarm))) - return -EFAULT; - break; + err = -EFAULT; + return err; #ifdef CONFIG_RTC_INTF_DEV_UIE_EMUL case RTC_UIE_OFF: clear_uie(rtc); - return 0; + break; case RTC_UIE_ON: - return set_uie(rtc); + err = set_uie(rtc); #endif default: err = -ENOTTY; break; } +done: + mutex_unlock(&rtc->ops_lock); return err; } @@ -432,7 +450,7 @@ static const struct file_operations rtc_dev_fops = { .llseek = no_llseek, .read = rtc_dev_read, .poll = rtc_dev_poll, - .ioctl = rtc_dev_ioctl, + .unlocked_ioctl = rtc_dev_ioctl, .open = rtc_dev_open, .release = rtc_dev_release, .fasync = rtc_dev_fasync, diff --git a/drivers/rtc/rtc-ds1305.c b/drivers/rtc/rtc-ds1305.c new file mode 100644 index 0000000..b91d02a --- /dev/null +++ b/drivers/rtc/rtc-ds1305.c @@ -0,0 +1,847 @@ +/* + * rtc-ds1305.c -- driver for DS1305 and DS1306 SPI RTC chips + * + * Copyright (C) 2008 David Brownell + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/bcd.h> +#include <linux/rtc.h> +#include <linux/workqueue.h> + +#include <linux/spi/spi.h> +#include <linux/spi/ds1305.h> + + +/* + * Registers ... mask DS1305_WRITE into register address to write, + * otherwise you're reading it. All non-bitmask values are BCD. + */ +#define DS1305_WRITE 0x80 + + +/* RTC date/time ... the main special cases are that we: + * - Need fancy "hours" encoding in 12hour mode + * - Don't rely on the "day-of-week" field (or tm_wday) + * - Are a 21st-century clock (2000 <= year < 2100) + */ +#define DS1305_RTC_LEN 7 /* bytes for RTC regs */ + +#define DS1305_SEC 0x00 /* register addresses */ +#define DS1305_MIN 0x01 +#define DS1305_HOUR 0x02 +# define DS1305_HR_12 0x40 /* set == 12 hr mode */ +# define DS1305_HR_PM 0x20 /* set == PM (12hr mode) */ +#define DS1305_WDAY 0x03 +#define DS1305_MDAY 0x04 +#define DS1305_MON 0x05 +#define DS1305_YEAR 0x06 + + +/* The two alarms have only sec/min/hour/wday fields (ALM_LEN). + * DS1305_ALM_DISABLE disables a match field (some combos are bad). + * + * NOTE that since we don't use WDAY, we limit ourselves to alarms + * only one day into the future (vs potentially up to a week). + * + * NOTE ALSO that while we could generate once-a-second IRQs (UIE), we + * don't currently support them. We'd either need to do it only when + * no alarm is pending (not the standard model), or to use the second + * alarm (implying that this is a DS1305 not DS1306, *and* that either + * it's wired up a second IRQ we know, or that INTCN is set) + */ +#define DS1305_ALM_LEN 4 /* bytes for ALM regs */ +#define DS1305_ALM_DISABLE 0x80 + +#define DS1305_ALM0(r) (0x07 + (r)) /* register addresses */ +#define DS1305_ALM1(r) (0x0b + (r)) + + +/* three control registers */ +#define DS1305_CONTROL_LEN 3 /* bytes of control regs */ + +#define DS1305_CONTROL 0x0f /* register addresses */ +# define DS1305_nEOSC 0x80 /* low enables oscillator */ +# define DS1305_WP 0x40 /* write protect */ +# define DS1305_INTCN 0x04 /* clear == only int0 used */ +# define DS1306_1HZ 0x04 /* enable 1Hz output */ +# define DS1305_AEI1 0x02 /* enable ALM1 IRQ */ +# define DS1305_AEI0 0x01 /* enable ALM0 IRQ */ +#define DS1305_STATUS 0x10 +/* status has just AEIx bits, mirrored as IRQFx */ +#define DS1305_TRICKLE 0x11 +/* trickle bits are defined in <linux/spi/ds1305.h> */ + +/* a bunch of NVRAM */ +#define DS1305_NVRAM_LEN 96 /* bytes of NVRAM */ + +#define DS1305_NVRAM 0x20 /* register addresses */ + + +struct ds1305 { + struct spi_device *spi; + struct rtc_device *rtc; + + struct work_struct work; + + unsigned long flags; +#define FLAG_EXITING 0 + + bool hr12; + u8 ctrl[DS1305_CONTROL_LEN]; +}; + + +/*----------------------------------------------------------------------*/ + +/* + * Utilities ... tolerate 12-hour AM/PM notation in case of non-Linux + * software (like a bootloader) which may require it. + */ + +static unsigned bcd2hour(u8 bcd) +{ + if (bcd & DS1305_HR_12) { + unsigned hour = 0; + + bcd &= ~DS1305_HR_12; + if (bcd & DS1305_HR_PM) { + hour = 12; + bcd &= ~DS1305_HR_PM; + } + hour += BCD2BIN(bcd); + return hour - 1; + } + return BCD2BIN(bcd); +} + +static u8 hour2bcd(bool hr12, int hour) +{ + if (hr12) { + hour++; + if (hour <= 12) + return DS1305_HR_12 | BIN2BCD(hour); + hour -= 12; + return DS1305_HR_12 | DS1305_HR_PM | BIN2BCD(hour); + } + return BIN2BCD(hour); +} + +/*----------------------------------------------------------------------*/ + +/* + * Interface to RTC framework + */ + +#ifdef CONFIG_RTC_INTF_DEV + +/* + * Context: caller holds rtc->ops_lock (to protect ds1305->ctrl) + */ +static int ds1305_ioctl(struct device *dev, unsigned cmd, unsigned long arg) +{ + struct ds1305 *ds1305 = dev_get_drvdata(dev); + u8 buf[2]; + int status = -ENOIOCTLCMD; + + buf[0] = DS1305_WRITE | DS1305_CONTROL; + buf[1] = ds1305->ctrl[0]; + + switch (cmd) { + case RTC_AIE_OFF: + status = 0; + if (!(buf[1] & DS1305_AEI0)) + goto done; + buf[1] &= ~DS1305_AEI0; + break; + + case RTC_AIE_ON: + status = 0; + if (ds1305->ctrl[0] & DS1305_AEI0) + goto done; + buf[1] |= DS1305_AEI0; + break; + } + if (status == 0) { + status = spi_write_then_read(ds1305->spi, buf, sizeof buf, + NULL, 0); + if (status >= 0) + ds1305->ctrl[0] = buf[1]; + } + +done: + return status; +} + +#else +#define ds1305_ioctl NULL +#endif + +/* + * Get/set of date and time is pretty normal. + */ + +static int ds1305_get_time(struct device *dev, struct rtc_time *time) +{ + struct ds1305 *ds1305 = dev_get_drvdata(dev); + u8 addr = DS1305_SEC; + u8 buf[DS1305_RTC_LEN]; + int status; + + /* Use write-then-read to get all the date/time registers + * since dma from stack is nonportable + */ + status = spi_write_then_read(ds1305->spi, &addr, sizeof addr, + buf, sizeof buf); + if (status < 0) + return status; + + dev_vdbg(dev, "%s: %02x %02x %02x, %02x %02x %02x %02x\n", + "read", buf[0], buf[1], buf[2], buf[3], + buf[4], buf[5], buf[6]); + + /* Decode the registers */ + time->tm_sec = BCD2BIN(buf[DS1305_SEC]); + time->tm_min = BCD2BIN(buf[DS1305_MIN]); + time->tm_hour = bcd2hour(buf[DS1305_HOUR]); + time->tm_wday = buf[DS1305_WDAY] - 1; + time->tm_mday = BCD2BIN(buf[DS1305_MDAY]); + time->tm_mon = BCD2BIN(buf[DS1305_MON]) - 1; + time->tm_year = BCD2BIN(buf[DS1305_YEAR]) + 100; + + dev_vdbg(dev, "%s secs=%d, mins=%d, " + "hours=%d, mday=%d, mon=%d, year=%d, wday=%d\n", + "read", time->tm_sec, time->tm_min, + time->tm_hour, time->tm_mday, + time->tm_mon, time->tm_year, time->tm_wday); + + /* Time may not be set */ + return rtc_valid_tm(time); +} + +static int ds1305_set_time(struct device *dev, struct rtc_time *time) +{ + struct ds1305 *ds1305 = dev_get_drvdata(dev); + u8 buf[1 + DS1305_RTC_LEN]; + u8 *bp = buf; + + dev_vdbg(dev, "%s secs=%d, mins=%d, " + "hours=%d, mday=%d, mon=%d, year=%d, wday=%d\n", + "write", time->tm_sec, time->tm_min, + time->tm_hour, time->tm_mday, + time->tm_mon, time->tm_year, time->tm_wday); + + /* Write registers starting at the first time/date address. */ + *bp++ = DS1305_WRITE | DS1305_SEC; + + *bp++ = BIN2BCD(time->tm_sec); + *bp++ = BIN2BCD(time->tm_min); + *bp++ = hour2bcd(ds1305->hr12, time->tm_hour); + *bp++ = (time->tm_wday < 7) ? (time->tm_wday + 1) : 1; + *bp++ = BIN2BCD(time->tm_mday); + *bp++ = BIN2BCD(time->tm_mon + 1); + *bp++ = BIN2BCD(time->tm_year - 100); + + dev_dbg(dev, "%s: %02x %02x %02x, %02x %02x %02x %02x\n", + "write", buf[1], buf[2], buf[3], + buf[4], buf[5], buf[6], buf[7]); + + /* use write-then-read since dma from stack is nonportable */ + return spi_write_then_read(ds1305->spi, buf, sizeof buf, + NULL, 0); +} + +/* + * Get/set of alarm is a bit funky: + * + * - First there's the inherent raciness of getting the (partitioned) + * status of an alarm that could trigger while we're reading parts + * of that status. + * + * - Second there's its limited range (we could increase it a bit by + * relying on WDAY), which means it will easily roll over. + * + * - Third there's the choice of two alarms and alarm signals. + * Here we use ALM0 and expect that nINT0 (open drain) is used; + * that's the only real option for DS1306 runtime alarms, and is + * natural on DS1305. + * + * - Fourth, there's also ALM1, and a second interrupt signal: + * + On DS1305 ALM1 uses nINT1 (when INTCN=1) else nINT0; + * + On DS1306 ALM1 only uses INT1 (an active high pulse) + * and it won't work when VCC1 is active. + * + * So to be most general, we should probably set both alarms to the + * same value, letting ALM1 be the wakeup event source on DS1306 + * and handling several wiring options on DS1305. + * + * - Fifth, we support the polled mode (as well as possible; why not?) + * even when no interrupt line is wired to an IRQ. + */ + +/* + * Context: caller holds rtc->ops_lock (to protect ds1305->ctrl) + */ +static int ds1305_get_alarm(struct device *dev, struct rtc_wkalrm *alm) +{ + struct ds1305 *ds1305 = dev_get_drvdata(dev); + struct spi_device *spi = ds1305->spi; + u8 addr; + int status; + u8 buf[DS1305_ALM_LEN]; + + /* Refresh control register cache BEFORE reading ALM0 registers, + * since reading alarm registers acks any pending IRQ. That + * makes returning "pending" status a bit of a lie, but that bit + * of EFI status is at best fragile anyway (given IRQ handlers). + */ + addr = DS1305_CONTROL; + status = spi_write_then_read(spi, &addr, sizeof addr, + ds1305->ctrl, sizeof ds1305->ctrl); + if (status < 0) + return status; + + alm->enabled = !!(ds1305->ctrl[0] & DS1305_AEI0); + alm->pending = !!(ds1305->ctrl[1] & DS1305_AEI0); + + /* get and check ALM0 registers */ + addr = DS1305_ALM0(DS1305_SEC); + status = spi_write_then_read(spi, &addr, sizeof addr, + buf, sizeof buf); + if (status < 0) + return status; + + dev_vdbg(dev, "%s: %02x %02x %02x %02x\n", + "alm0 read", buf[DS1305_SEC], buf[DS1305_MIN], + buf[DS1305_HOUR], buf[DS1305_WDAY]); + + if ((DS1305_ALM_DISABLE & buf[DS1305_SEC]) + || (DS1305_ALM_DISABLE & buf[DS1305_MIN]) + || (DS1305_ALM_DISABLE & buf[DS1305_HOUR])) + return -EIO; + + /* Stuff these values into alm->time and let RTC framework code + * fill in the rest ... and also handle rollover to tomorrow when + * that's needed. + */ + alm->time.tm_sec = BCD2BIN(buf[DS1305_SEC]); + alm->time.tm_min = BCD2BIN(buf[DS1305_MIN]); + alm->time.tm_hour = bcd2hour(buf[DS1305_HOUR]); + alm->time.tm_mday = -1; + alm->time.tm_mon = -1; + alm->time.tm_year = -1; + /* next three fields are unused by Linux */ + alm->time.tm_wday = -1; + alm->time.tm_mday = -1; + alm->time.tm_isdst = -1; + + return 0; +} + +/* + * Context: caller holds rtc->ops_lock (to protect ds1305->ctrl) + */ +static int ds1305_set_alarm(struct device *dev, struct rtc_wkalrm *alm) +{ + struct ds1305 *ds1305 = dev_get_drvdata(dev); + struct spi_device *spi = ds1305->spi; + unsigned long now, later; + struct rtc_time tm; + int status; + u8 buf[1 + DS1305_ALM_LEN]; + + /* convert desired alarm to time_t */ + status = rtc_tm_to_time(&alm->time, &later); + if (status < 0) + return status; + + /* Read current time as time_t */ + status = ds1305_get_time(dev, &tm); + if (status < 0) + return status; + status = rtc_tm_to_time(&tm, &now); + if (status < 0) + return status; + + /* make sure alarm fires within the next 24 hours */ + if (later <= now) + return -EINVAL; + if ((later - now) > 24 * 60 * 60) + return -EDOM; + + /* disable alarm if needed */ + if (ds1305->ctrl[0] & DS1305_AEI0) { + ds1305->ctrl[0] &= ~DS1305_AEI0; + + buf[0] = DS1305_WRITE | DS1305_CONTROL; + buf[1] = ds1305->ctrl[0]; + status = spi_write_then_read(ds1305->spi, buf, 2, NULL, 0); + if (status < 0) + return status; + } + + /* write alarm */ + buf[0] = DS1305_WRITE | DS1305_ALM0(DS1305_SEC); + buf[1 + DS1305_SEC] = BIN2BCD(alm->time.tm_sec); + buf[1 + DS1305_MIN] = BIN2BCD(alm->time.tm_min); + buf[1 + DS1305_HOUR] = hour2bcd(ds1305->hr12, alm->time.tm_hour); + buf[1 + DS1305_WDAY] = DS1305_ALM_DISABLE; + + dev_dbg(dev, "%s: %02x %02x %02x %02x\n", + "alm0 write", buf[1 + DS1305_SEC], buf[1 + DS1305_MIN], + buf[1 + DS1305_HOUR], buf[1 + DS1305_WDAY]); + + status = spi_write_then_read(spi, buf, sizeof buf, NULL, 0); + if (status < 0) + return status; + + /* enable alarm if requested */ + if (alm->enabled) { + ds1305->ctrl[0] |= DS1305_AEI0; + + buf[0] = DS1305_WRITE | DS1305_CONTROL; + buf[1] = ds1305->ctrl[0]; + status = spi_write_then_read(ds1305->spi, buf, 2, NULL, 0); + } + + return status; +} + +#ifdef CONFIG_PROC_FS + +static int ds1305_proc(struct device *dev, struct seq_file *seq) +{ + struct ds1305 *ds1305 = dev_get_drvdata(dev); + char *diodes = "no"; + char *resistors = ""; + + /* ctrl[2] is treated as read-only; no locking needed */ + if ((ds1305->ctrl[2] & 0xf0) == DS1305_TRICKLE_MAGIC) { + switch (ds1305->ctrl[2] & 0x0c) { + case DS1305_TRICKLE_DS2: + diodes = "2 diodes, "; + break; + case DS1305_TRICKLE_DS1: + diodes = "1 diode, "; + break; + default: + goto done; + } + switch (ds1305->ctrl[2] & 0x03) { + case DS1305_TRICKLE_2K: + resistors = "2k Ohm"; + break; + case DS1305_TRICKLE_4K: + resistors = "4k Ohm"; + break; + case DS1305_TRICKLE_8K: + resistors = "8k Ohm"; + break; + default: + diodes = "no"; + break; + } + } + +done: + return seq_printf(seq, + "trickle_charge\t: %s%s\n", + diodes, resistors); +} + +#else +#define ds1305_proc NULL +#endif + +static const struct rtc_class_ops ds1305_ops = { + .ioctl = ds1305_ioctl, + .read_time = ds1305_get_time, + .set_time = ds1305_set_time, + .read_alarm = ds1305_get_alarm, + .set_alarm = ds1305_set_alarm, + .proc = ds1305_proc, +}; + +static void ds1305_work(struct work_struct *work) +{ + struct ds1305 *ds1305 = container_of(work, struct ds1305, work); + struct mutex *lock = &ds1305->rtc->ops_lock; + struct spi_device *spi = ds1305->spi; + u8 buf[3]; + int status; + + /* lock to protect ds1305->ctrl */ + mutex_lock(lock); + + /* Disable the IRQ, and clear its status ... for now, we "know" + * that if more than one alarm is active, they're in sync. + * Note that reading ALM data registers also clears IRQ status. + */ + ds1305->ctrl[0] &= ~(DS1305_AEI1 | DS1305_AEI0); + ds1305->ctrl[1] = 0; + + buf[0] = DS1305_WRITE | DS1305_CONTROL; + buf[1] = ds1305->ctrl[0]; + buf[2] = 0; + + status = spi_write_then_read(spi, buf, sizeof buf, + NULL, 0); + if (status < 0) + dev_dbg(&spi->dev, "clear irq --> %d\n", status); + + mutex_unlock(lock); + + if (!test_bit(FLAG_EXITING, &ds1305->flags)) + enable_irq(spi->irq); + + /* rtc_update_irq() requires an IRQ-disabled context */ + local_irq_disable(); + rtc_update_irq(ds1305->rtc, 1, RTC_AF | RTC_IRQF); + local_irq_enable(); +} + +/* + * This "real" IRQ handler hands off to a workqueue mostly to allow + * mutex locking for ds1305->ctrl ... unlike I2C, we could issue async + * I/O requests in IRQ context (to clear the IRQ status). + */ +static irqreturn_t ds1305_irq(int irq, void *p) +{ + struct ds1305 *ds1305 = p; + + disable_irq(irq); + schedule_work(&ds1305->work); + return IRQ_HANDLED; +} + +/*----------------------------------------------------------------------*/ + +/* + * Interface for NVRAM + */ + +static void msg_init(struct spi_message *m, struct spi_transfer *x, + u8 *addr, size_t count, char *tx, char *rx) +{ + spi_message_init(m); + memset(x, 0, 2 * sizeof(*x)); + + x->tx_buf = addr; + x->len = 1; + spi_message_add_tail(x, m); + + x++; + + x->tx_buf = tx; + x->rx_buf = rx; + x->len = count; + spi_message_add_tail(x, m); +} + +static ssize_t +ds1305_nvram_read(struct kobject *kobj, struct bin_attribute *attr, + char *buf, loff_t off, size_t count) +{ + struct spi_device *spi; + u8 addr; + struct spi_message m; + struct spi_transfer x[2]; + int status; + + spi = container_of(kobj, struct spi_device, dev.kobj); + + if (unlikely(off >= DS1305_NVRAM_LEN)) + return 0; + if (count >= DS1305_NVRAM_LEN) + count = DS1305_NVRAM_LEN; + if ((off + count) > DS1305_NVRAM_LEN) + count = DS1305_NVRAM_LEN - off; + if (unlikely(!count)) + return count; + + addr = DS1305_NVRAM + off; + msg_init(&m, x, &addr, count, NULL, buf); + + status = spi_sync(spi, &m); + if (status < 0) + dev_err(&spi->dev, "nvram %s error %d\n", "read", status); + return (status < 0) ? status : count; +} + +static ssize_t +ds1305_nvram_write(struct kobject *kobj, struct bin_attribute *attr, + char *buf, loff_t off, size_t count) +{ + struct spi_device *spi; + u8 addr; + struct spi_message m; + struct spi_transfer x[2]; + int status; + + spi = container_of(kobj, struct spi_device, dev.kobj); + + if (unlikely(off >= DS1305_NVRAM_LEN)) + return -EFBIG; + if (count >= DS1305_NVRAM_LEN) + count = DS1305_NVRAM_LEN; + if ((off + count) > DS1305_NVRAM_LEN) + count = DS1305_NVRAM_LEN - off; + if (unlikely(!count)) + return count; + + addr = (DS1305_WRITE | DS1305_NVRAM) + off; + msg_init(&m, x, &addr, count, buf, NULL); + + status = spi_sync(spi, &m); + if (status < 0) + dev_err(&spi->dev, "nvram %s error %d\n", "write", status); + return (status < 0) ? status : count; +} + +static struct bin_attribute nvram = { + .attr.name = "nvram", + .attr.mode = S_IRUGO | S_IWUSR, + .attr.owner = THIS_MODULE, + .read = ds1305_nvram_read, + .write = ds1305_nvram_write, + .size = DS1305_NVRAM_LEN, +}; + +/*----------------------------------------------------------------------*/ + +/* + * Interface to SPI stack + */ + +static int __devinit ds1305_probe(struct spi_device *spi) +{ + struct ds1305 *ds1305; + struct rtc_device *rtc; + int status; + u8 addr, value; + struct ds1305_platform_data *pdata = spi->dev.platform_data; + bool write_ctrl = false; + + /* Sanity check board setup data. This may be hooked up + * in 3wire mode, but we don't care. Note that unless + * there's an inverter in place, this needs SPI_CS_HIGH! + */ + if ((spi->bits_per_word && spi->bits_per_word != 8) + || (spi->max_speed_hz > 2000000) + || !(spi->mode & SPI_CPHA)) + return -EINVAL; + + /* set up driver data */ + ds1305 = kzalloc(sizeof *ds1305, GFP_KERNEL); + if (!ds1305) + return -ENOMEM; + ds1305->spi = spi; + spi_set_drvdata(spi, ds1305); + + /* read and cache control registers */ + addr = DS1305_CONTROL; + status = spi_write_then_read(spi, &addr, sizeof addr, + ds1305->ctrl, sizeof ds1305->ctrl); + if (status < 0) { + dev_dbg(&spi->dev, "can't %s, %d\n", + "read", status); + goto fail0; + } + + dev_dbg(&spi->dev, "ctrl %s: %02x %02x %02x\n", + "read", ds1305->ctrl[0], + ds1305->ctrl[1], ds1305->ctrl[2]); + + /* Sanity check register values ... partially compensating for the + * fact that SPI has no device handshake. A pullup on MISO would + * make these tests fail; but not all systems will have one. If + * some register is neither 0x00 nor 0xff, a chip is likely there. + */ + if ((ds1305->ctrl[0] & 0x38) != 0 || (ds1305->ctrl[1] & 0xfc) != 0) { + dev_dbg(&spi->dev, "RTC chip is not present\n"); + status = -ENODEV; + goto fail0; + } + if (ds1305->ctrl[2] == 0) + dev_dbg(&spi->dev, "chip may not be present\n"); + + /* enable writes if needed ... if we were paranoid it would + * make sense to enable them only when absolutely necessary. + */ + if (ds1305->ctrl[0] & DS1305_WP) { + u8 buf[2]; + + ds1305->ctrl[0] &= ~DS1305_WP; + + buf[0] = DS1305_WRITE | DS1305_CONTROL; + buf[1] = ds1305->ctrl[0]; + status = spi_write_then_read(spi, buf, sizeof buf, NULL, 0); + + dev_dbg(&spi->dev, "clear WP --> %d\n", status); + if (status < 0) + goto fail0; + } + + /* on DS1305, maybe start oscillator; like most low power + * oscillators, it may take a second to stabilize + */ + if (ds1305->ctrl[0] & DS1305_nEOSC) { + ds1305->ctrl[0] &= ~DS1305_nEOSC; + write_ctrl = true; + dev_warn(&spi->dev, "SET TIME!\n"); + } + + /* ack any pending IRQs */ + if (ds1305->ctrl[1]) { + ds1305->ctrl[1] = 0; + write_ctrl = true; + } + + /* this may need one-time (re)init */ + if (pdata) { + /* maybe enable trickle charge */ + if (((ds1305->ctrl[2] & 0xf0) != DS1305_TRICKLE_MAGIC)) { + ds1305->ctrl[2] = DS1305_TRICKLE_MAGIC + | pdata->trickle; + write_ctrl = true; + } + + /* on DS1306, configure 1 Hz signal */ + if (pdata->is_ds1306) { + if (pdata->en_1hz) { + if (!(ds1305->ctrl[0] & DS1306_1HZ)) { + ds1305->ctrl[0] |= DS1306_1HZ; + write_ctrl = true; + } + } else { + if (ds1305->ctrl[0] & DS1306_1HZ) { + ds1305->ctrl[0] &= ~DS1306_1HZ; + write_ctrl = true; + } + } + } + } + + if (write_ctrl) { + u8 buf[4]; + + buf[0] = DS1305_WRITE | DS1305_CONTROL; + buf[1] = ds1305->ctrl[0]; + buf[2] = ds1305->ctrl[1]; + buf[3] = ds1305->ctrl[2]; + status = spi_write_then_read(spi, buf, sizeof buf, NULL, 0); + if (status < 0) { + dev_dbg(&spi->dev, "can't %s, %d\n", + "write", status); + goto fail0; + } + + dev_dbg(&spi->dev, "ctrl %s: %02x %02x %02x\n", + "write", ds1305->ctrl[0], + ds1305->ctrl[1], ds1305->ctrl[2]); + } + + /* see if non-Linux software set up AM/PM mode */ + addr = DS1305_HOUR; + status = spi_write_then_read(spi, &addr, sizeof addr, + &value, sizeof value); + if (status < 0) { + dev_dbg(&spi->dev, "read HOUR --> %d\n", status); + goto fail0; + } + + ds1305->hr12 = (DS1305_HR_12 & value) != 0; + if (ds1305->hr12) + dev_dbg(&spi->dev, "AM/PM\n"); + + /* register RTC ... from here on, ds1305->ctrl needs locking */ + rtc = rtc_device_register("ds1305", &spi->dev, + &ds1305_ops, THIS_MODULE); + if (IS_ERR(rtc)) { + status = PTR_ERR(rtc); + dev_dbg(&spi->dev, "register rtc --> %d\n", status); + goto fail0; + } + ds1305->rtc = rtc; + + /* Maybe set up alarm IRQ; be ready to handle it triggering right + * away. NOTE that we don't share this. The signal is active low, + * and we can't ack it before a SPI message delay. We temporarily + * disable the IRQ until it's acked, which lets us work with more + * IRQ trigger modes (not all IRQ controllers can do falling edge). + */ + if (spi->irq) { + INIT_WORK(&ds1305->work, ds1305_work); + status = request_irq(spi->irq, ds1305_irq, + 0, dev_name(&rtc->dev), ds1305); + if (status < 0) { + dev_dbg(&spi->dev, "request_irq %d --> %d\n", + spi->irq, status); + goto fail1; + } + } + + /* export NVRAM */ + status = sysfs_create_bin_file(&spi->dev.kobj, &nvram); + if (status < 0) { + dev_dbg(&spi->dev, "register nvram --> %d\n", status); + goto fail2; + } + + return 0; + +fail2: + free_irq(spi->irq, ds1305); +fail1: + rtc_device_unregister(rtc); +fail0: + kfree(ds1305); + return status; +} + +static int __devexit ds1305_remove(struct spi_device *spi) +{ + struct ds1305 *ds1305 = spi_get_drvdata(spi); + + sysfs_remove_bin_file(&spi->dev.kobj, &nvram); + + /* carefully shut down irq and workqueue, if present */ + if (spi->irq) { + set_bit(FLAG_EXITING, &ds1305->flags); + free_irq(spi->irq, ds1305); + flush_scheduled_work(); + } + + rtc_device_unregister(ds1305->rtc); + spi_set_drvdata(spi, NULL); + kfree(ds1305); + return 0; +} + +static struct spi_driver ds1305_driver = { + .driver.name = "rtc-ds1305", + .driver.owner = THIS_MODULE, + .probe = ds1305_probe, + .remove = __devexit_p(ds1305_remove), + /* REVISIT add suspend/resume */ +}; + +static int __init ds1305_init(void) +{ + return spi_register_driver(&ds1305_driver); +} +module_init(ds1305_init); + +static void __exit ds1305_exit(void) +{ + spi_unregister_driver(&ds1305_driver); +} +module_exit(ds1305_exit); + +MODULE_DESCRIPTION("RTC driver for DS1305 and DS1306 chips"); +MODULE_LICENSE("GPL"); diff --git a/drivers/rtc/rtc-m41t80.c b/drivers/rtc/rtc-m41t80.c index 0a19c06..24bc168 100644 --- a/drivers/rtc/rtc-m41t80.c +++ b/drivers/rtc/rtc-m41t80.c @@ -13,21 +13,21 @@ * */ -#include <linux/module.h> +#include <linux/bcd.h> +#include <linux/i2c.h> #include <linux/init.h> #include <linux/kernel.h> +#include <linux/module.h> +#include <linux/rtc.h> #include <linux/slab.h> #include <linux/smp_lock.h> #include <linux/string.h> -#include <linux/i2c.h> -#include <linux/rtc.h> -#include <linux/bcd.h> #ifdef CONFIG_RTC_DRV_M41T80_WDT -#include <linux/miscdevice.h> -#include <linux/watchdog.h> -#include <linux/reboot.h> #include <linux/fs.h> #include <linux/ioctl.h> +#include <linux/miscdevice.h> +#include <linux/reboot.h> +#include <linux/watchdog.h> #endif #define M41T80_REG_SSEC 0 @@ -631,14 +631,12 @@ static int wdt_ioctl(struct inode *inode, struct file *file, unsigned int cmd, return -EFAULT; if (rv & WDIOS_DISABLECARD) { - printk(KERN_INFO - "rtc-m41t80: disable watchdog\n"); + pr_info("rtc-m41t80: disable watchdog\n"); wdt_disable(); } if (rv & WDIOS_ENABLECARD) { - printk(KERN_INFO - "rtc-m41t80: enable watchdog\n"); + pr_info("rtc-m41t80: enable watchdog\n"); wdt_ping(); } diff --git a/drivers/rtc/rtc-m41t94.c b/drivers/rtc/rtc-m41t94.c new file mode 100644 index 0000000..9b19499 --- /dev/null +++ b/drivers/rtc/rtc-m41t94.c @@ -0,0 +1,173 @@ +/* + * Driver for ST M41T94 SPI RTC + * + * Copyright (C) 2008 Kim B. Heino + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/platform_device.h> +#include <linux/rtc.h> +#include <linux/spi/spi.h> +#include <linux/bcd.h> + +#define M41T94_REG_SECONDS 0x01 +#define M41T94_REG_MINUTES 0x02 +#define M41T94_REG_HOURS 0x03 +#define M41T94_REG_WDAY 0x04 +#define M41T94_REG_DAY 0x05 +#define M41T94_REG_MONTH 0x06 +#define M41T94_REG_YEAR 0x07 +#define M41T94_REG_HT 0x0c + +#define M41T94_BIT_HALT 0x40 +#define M41T94_BIT_STOP 0x80 +#define M41T94_BIT_CB 0x40 +#define M41T94_BIT_CEB 0x80 + +static int m41t94_set_time(struct device *dev, struct rtc_time *tm) +{ + struct spi_device *spi = to_spi_device(dev); + u8 buf[8]; /* write cmd + 7 registers */ + + dev_dbg(dev, "%s secs=%d, mins=%d, " + "hours=%d, mday=%d, mon=%d, year=%d, wday=%d\n", + "write", tm->tm_sec, tm->tm_min, + tm->tm_hour, tm->tm_mday, + tm->tm_mon, tm->tm_year, tm->tm_wday); + + buf[0] = 0x80 | M41T94_REG_SECONDS; /* write time + date */ + buf[M41T94_REG_SECONDS] = BIN2BCD(tm->tm_sec); + buf[M41T94_REG_MINUTES] = BIN2BCD(tm->tm_min); + buf[M41T94_REG_HOURS] = BIN2BCD(tm->tm_hour); + buf[M41T94_REG_WDAY] = BIN2BCD(tm->tm_wday + 1); + buf[M41T94_REG_DAY] = BIN2BCD(tm->tm_mday); + buf[M41T94_REG_MONTH] = BIN2BCD(tm->tm_mon + 1); + + buf[M41T94_REG_HOURS] |= M41T94_BIT_CEB; + if (tm->tm_year >= 100) + buf[M41T94_REG_HOURS] |= M41T94_BIT_CB; + buf[M41T94_REG_YEAR] = BIN2BCD(tm->tm_year % 100); + + return spi_write(spi, buf, 8); +} + +static int m41t94_read_time(struct device *dev, struct rtc_time *tm) +{ + struct spi_device *spi = to_spi_device(dev); + u8 buf[2]; + int ret, hour; + + /* clear halt update bit */ + ret = spi_w8r8(spi, M41T94_REG_HT); + if (ret < 0) + return ret; + if (ret & M41T94_BIT_HALT) { + buf[0] = 0x80 | M41T94_REG_HT; + buf[1] = ret & ~M41T94_BIT_HALT; + spi_write(spi, buf, 2); + } + + /* clear stop bit */ + ret = spi_w8r8(spi, M41T94_REG_SECONDS); + if (ret < 0) + return ret; + if (ret & M41T94_BIT_STOP) { + buf[0] = 0x80 | M41T94_REG_SECONDS; + buf[1] = ret & ~M41T94_BIT_STOP; + spi_write(spi, buf, 2); + } + + tm->tm_sec = BCD2BIN(spi_w8r8(spi, M41T94_REG_SECONDS)); + tm->tm_min = BCD2BIN(spi_w8r8(spi, M41T94_REG_MINUTES)); + hour = spi_w8r8(spi, M41T94_REG_HOURS); + tm->tm_hour = BCD2BIN(hour & 0x3f); + tm->tm_wday = BCD2BIN(spi_w8r8(spi, M41T94_REG_WDAY)) - 1; + tm->tm_mday = BCD2BIN(spi_w8r8(spi, M41T94_REG_DAY)); + tm->tm_mon = BCD2BIN(spi_w8r8(spi, M41T94_REG_MONTH)) - 1; + tm->tm_year = BCD2BIN(spi_w8r8(spi, M41T94_REG_YEAR)); + if ((hour & M41T94_BIT_CB) || !(hour & M41T94_BIT_CEB)) + tm->tm_year += 100; + + dev_dbg(dev, "%s secs=%d, mins=%d, " + "hours=%d, mday=%d, mon=%d, year=%d, wday=%d\n", + "read", tm->tm_sec, tm->tm_min, + tm->tm_hour, tm->tm_mday, + tm->tm_mon, tm->tm_year, tm->tm_wday); + + /* initial clock setting can be undefined */ + return rtc_valid_tm(tm); +} + +static const struct rtc_class_ops m41t94_rtc_ops = { + .read_time = m41t94_read_time, + .set_time = m41t94_set_time, +}; + +static struct spi_driver m41t94_driver; + +static int __devinit m41t94_probe(struct spi_device *spi) +{ + struct rtc_device *rtc; + int res; + + spi->bits_per_word = 8; + spi_setup(spi); + + res = spi_w8r8(spi, M41T94_REG_SECONDS); + if (res < 0) { + dev_err(&spi->dev, "not found.\n"); + return res; + } + + rtc = rtc_device_register(m41t94_driver.driver.name, + &spi->dev, &m41t94_rtc_ops, THIS_MODULE); + if (IS_ERR(rtc)) + return PTR_ERR(rtc); + + dev_set_drvdata(&spi->dev, rtc); + + return 0; +} + +static int __devexit m41t94_remove(struct spi_device *spi) +{ + struct rtc_device *rtc = platform_get_drvdata(spi); + + if (rtc) + rtc_device_unregister(rtc); + + return 0; +} + +static struct spi_driver m41t94_driver = { + .driver = { + .name = "rtc-m41t94", + .bus = &spi_bus_type, + .owner = THIS_MODULE, + }, + .probe = m41t94_probe, + .remove = __devexit_p(m41t94_remove), +}; + +static __init int m41t94_init(void) +{ + return spi_register_driver(&m41t94_driver); +} + +module_init(m41t94_init); + +static __exit void m41t94_exit(void) +{ + spi_unregister_driver(&m41t94_driver); +} + +module_exit(m41t94_exit); + +MODULE_AUTHOR("Kim B. Heino <Kim.Heino@bluegiga.com>"); +MODULE_DESCRIPTION("Driver for ST M41T94 SPI RTC"); +MODULE_LICENSE("GPL"); diff --git a/drivers/rtc/rtc-omap.c b/drivers/rtc/rtc-omap.c index eb23d84..8876605d 100644 --- a/drivers/rtc/rtc-omap.c +++ b/drivers/rtc/rtc-omap.c @@ -92,18 +92,6 @@ #define rtc_write(val, addr) omap_writeb(val, OMAP_RTC_BASE + (addr)) -/* platform_bus isn't hotpluggable, so for static linkage it'd be safe - * to get rid of probe() and remove() code ... too bad the driver struct - * remembers probe(), that's about 25% of the runtime footprint!! - */ -#ifndef MODULE -#undef __devexit -#undef __devexit_p -#define __devexit __exit -#define __devexit_p __exit_p -#endif - - /* we rely on the rtc framework to handle locking (rtc->ops_lock), * so the only other requirement is that register accesses which * require BUSY to be clear are made with IRQs locally disabled @@ -324,7 +312,7 @@ static struct rtc_class_ops omap_rtc_ops = { static int omap_rtc_alarm; static int omap_rtc_timer; -static int __devinit omap_rtc_probe(struct platform_device *pdev) +static int __init omap_rtc_probe(struct platform_device *pdev) { struct resource *res, *mem; struct rtc_device *rtc; @@ -440,7 +428,7 @@ fail: return -EIO; } -static int __devexit omap_rtc_remove(struct platform_device *pdev) +static int __exit omap_rtc_remove(struct platform_device *pdev) { struct rtc_device *rtc = platform_get_drvdata(pdev);; @@ -498,8 +486,7 @@ static void omap_rtc_shutdown(struct platform_device *pdev) MODULE_ALIAS("platform:omap_rtc"); static struct platform_driver omap_rtc_driver = { - .probe = omap_rtc_probe, - .remove = __devexit_p(omap_rtc_remove), + .remove = __exit_p(omap_rtc_remove), .suspend = omap_rtc_suspend, .resume = omap_rtc_resume, .shutdown = omap_rtc_shutdown, @@ -511,7 +498,7 @@ static struct platform_driver omap_rtc_driver = { static int __init rtc_init(void) { - return platform_driver_register(&omap_rtc_driver); + return platform_driver_probe(&omap_rtc_driver, omap_rtc_probe); } module_init(rtc_init); diff --git a/drivers/rtc/rtc-pcf8583.c b/drivers/rtc/rtc-pcf8583.c index 3d09d8f..d388c66 100644 --- a/drivers/rtc/rtc-pcf8583.c +++ b/drivers/rtc/rtc-pcf8583.c @@ -2,6 +2,7 @@ * drivers/rtc/rtc-pcf8583.c * * Copyright (C) 2000 Russell King + * Copyright (C) 2008 Wolfram Sang & Juergen Beisert, Pengutronix * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -14,7 +15,6 @@ #include <linux/module.h> #include <linux/i2c.h> #include <linux/slab.h> -#include <linux/string.h> #include <linux/rtc.h> #include <linux/init.h> #include <linux/errno.h> @@ -27,7 +27,6 @@ struct rtc_mem { }; struct pcf8583 { - struct i2c_client client; struct rtc_device *rtc; unsigned char ctrl; }; @@ -40,10 +39,6 @@ struct pcf8583 { #define CTRL_ALARM 0x02 #define CTRL_TIMER 0x01 -static const unsigned short normal_i2c[] = { 0x50, I2C_CLIENT_END }; - -/* Module parameters */ -I2C_CLIENT_INSMOD; static struct i2c_driver pcf8583_driver; @@ -269,106 +264,60 @@ static const struct rtc_class_ops pcf8583_rtc_ops = { .set_time = pcf8583_rtc_set_time, }; -static int pcf8583_probe(struct i2c_adapter *adap, int addr, int kind); - -static int pcf8583_attach(struct i2c_adapter *adap) -{ - return i2c_probe(adap, &addr_data, pcf8583_probe); -} - -static int pcf8583_detach(struct i2c_client *client) -{ - int err; - struct pcf8583 *pcf = i2c_get_clientdata(client); - struct rtc_device *rtc = pcf->rtc; - - if (rtc) - rtc_device_unregister(rtc); - - if ((err = i2c_detach_client(client))) - return err; - - kfree(pcf); - return 0; -} - -static struct i2c_driver pcf8583_driver = { - .driver = { - .name = "pcf8583", - }, - .id = I2C_DRIVERID_PCF8583, - .attach_adapter = pcf8583_attach, - .detach_client = pcf8583_detach, -}; - -static int pcf8583_probe(struct i2c_adapter *adap, int addr, int kind) +static int pcf8583_probe(struct i2c_client *client, + const struct i2c_device_id *id) { - struct pcf8583 *pcf; - struct i2c_client *client; - struct rtc_device *rtc; - unsigned char buf[1], ad[1] = { 0 }; + struct pcf8583 *pcf8583; int err; - struct i2c_msg msgs[2] = { - { - .addr = addr, - .flags = 0, - .len = 1, - .buf = ad, - }, { - .addr = addr, - .flags = I2C_M_RD, - .len = 1, - .buf = buf, - } - }; - if (!i2c_check_functionality(adap, I2C_FUNC_I2C)) - return 0; + if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) + return -ENODEV; - pcf = kzalloc(sizeof(*pcf), GFP_KERNEL); - if (!pcf) + pcf8583 = kzalloc(sizeof(struct pcf8583), GFP_KERNEL); + if (!pcf8583) return -ENOMEM; - client = &pcf->client; + pcf8583->rtc = rtc_device_register(pcf8583_driver.driver.name, + &client->dev, &pcf8583_rtc_ops, THIS_MODULE); - client->addr = addr; - client->adapter = adap; - client->driver = &pcf8583_driver; - - strlcpy(client->name, pcf8583_driver.driver.name, I2C_NAME_SIZE); - - if (i2c_transfer(client->adapter, msgs, 2) != 2) { - err = -EIO; + if (IS_ERR(pcf8583->rtc)) { + err = PTR_ERR(pcf8583->rtc); goto exit_kfree; } - err = i2c_attach_client(client); - - if (err) - goto exit_kfree; - - rtc = rtc_device_register(pcf8583_driver.driver.name, &client->dev, - &pcf8583_rtc_ops, THIS_MODULE); + i2c_set_clientdata(client, pcf8583); + return 0; - if (IS_ERR(rtc)) { - err = PTR_ERR(rtc); - goto exit_detach; - } +exit_kfree: + kfree(pcf8583); + return err; +} - pcf->rtc = rtc; - i2c_set_clientdata(client, pcf); - set_ctrl(client, buf[0]); +static int __devexit pcf8583_remove(struct i2c_client *client) +{ + struct pcf8583 *pcf8583 = i2c_get_clientdata(client); + if (pcf8583->rtc) + rtc_device_unregister(pcf8583->rtc); + kfree(pcf8583); return 0; +} -exit_detach: - i2c_detach_client(client); - -exit_kfree: - kfree(pcf); +static const struct i2c_device_id pcf8583_id[] = { + { "pcf8583", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, pcf8583_id); - return err; -} +static struct i2c_driver pcf8583_driver = { + .driver = { + .name = "pcf8583", + .owner = THIS_MODULE, + }, + .probe = pcf8583_probe, + .remove = __devexit_p(pcf8583_remove), + .id_table = pcf8583_id, +}; static __init int pcf8583_init(void) { diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c index fed86e5..54b1ebb 100644 --- a/drivers/rtc/rtc-s3c.c +++ b/drivers/rtc/rtc-s3c.c @@ -36,10 +36,8 @@ static struct resource *s3c_rtc_mem; static void __iomem *s3c_rtc_base; static int s3c_rtc_alarmno = NO_IRQ; static int s3c_rtc_tickno = NO_IRQ; -static int s3c_rtc_freq = 1; static DEFINE_SPINLOCK(s3c_rtc_pie_lock); -static unsigned int tick_count; /* IRQ Handlers */ @@ -55,7 +53,7 @@ static irqreturn_t s3c_rtc_tickirq(int irq, void *id) { struct rtc_device *rdev = id; - rtc_update_irq(rdev, tick_count++, RTC_PF | RTC_IRQF); + rtc_update_irq(rdev, 1, RTC_PF | RTC_IRQF); return IRQ_HANDLED; } @@ -74,35 +72,37 @@ static void s3c_rtc_setaie(int to) writeb(tmp, s3c_rtc_base + S3C2410_RTCALM); } -static void s3c_rtc_setpie(int to) +static int s3c_rtc_setpie(struct device *dev, int enabled) { unsigned int tmp; - pr_debug("%s: pie=%d\n", __func__, to); + pr_debug("%s: pie=%d\n", __func__, enabled); spin_lock_irq(&s3c_rtc_pie_lock); tmp = readb(s3c_rtc_base + S3C2410_TICNT) & ~S3C2410_TICNT_ENABLE; - if (to) + if (enabled) tmp |= S3C2410_TICNT_ENABLE; writeb(tmp, s3c_rtc_base + S3C2410_TICNT); spin_unlock_irq(&s3c_rtc_pie_lock); + + return 0; } -static void s3c_rtc_setfreq(int freq) +static int s3c_rtc_setfreq(struct device *dev, int freq) { unsigned int tmp; spin_lock_irq(&s3c_rtc_pie_lock); - tmp = readb(s3c_rtc_base + S3C2410_TICNT) & S3C2410_TICNT_ENABLE; - - s3c_rtc_freq = freq; + tmp = readb(s3c_rtc_base + S3C2410_TICNT) & S3C2410_TICNT_ENABLE; tmp |= (128 / freq)-1; writeb(tmp, s3c_rtc_base + S3C2410_TICNT); spin_unlock_irq(&s3c_rtc_pie_lock); + + return 0; } /* Time read/write */ @@ -267,12 +267,7 @@ static int s3c_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm) writeb(alrm_en, base + S3C2410_RTCALM); - if (0) { - alrm_en = readb(base + S3C2410_RTCALM); - alrm_en &= ~S3C2410_RTCALM_ALMEN; - writeb(alrm_en, base + S3C2410_RTCALM); - disable_irq_wake(s3c_rtc_alarmno); - } + s3c_rtc_setaie(alrm->enabled); if (alrm->enabled) enable_irq_wake(s3c_rtc_alarmno); @@ -282,59 +277,12 @@ static int s3c_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm) return 0; } -static int s3c_rtc_ioctl(struct device *dev, - unsigned int cmd, unsigned long arg) -{ - unsigned int ret = -ENOIOCTLCMD; - - switch (cmd) { - case RTC_AIE_OFF: - case RTC_AIE_ON: - s3c_rtc_setaie((cmd == RTC_AIE_ON) ? 1 : 0); - ret = 0; - break; - - case RTC_PIE_OFF: - case RTC_PIE_ON: - tick_count = 0; - s3c_rtc_setpie((cmd == RTC_PIE_ON) ? 1 : 0); - ret = 0; - break; - - case RTC_IRQP_READ: - ret = put_user(s3c_rtc_freq, (unsigned long __user *)arg); - break; - - case RTC_IRQP_SET: - if (!is_power_of_2(arg)) { - ret = -EINVAL; - goto exit; - } - - pr_debug("s3c2410_rtc: setting frequency %ld\n", arg); - - s3c_rtc_setfreq(arg); - ret = 0; - break; - - case RTC_UIE_ON: - case RTC_UIE_OFF: - ret = -EINVAL; - } - - exit: - return ret; -} - static int s3c_rtc_proc(struct device *dev, struct seq_file *seq) { unsigned int ticnt = readb(s3c_rtc_base + S3C2410_TICNT); seq_printf(seq, "periodic_IRQ\t: %s\n", (ticnt & S3C2410_TICNT_ENABLE) ? "yes" : "no" ); - - seq_printf(seq, "periodic_freq\t: %d\n", s3c_rtc_freq); - return 0; } @@ -374,7 +322,7 @@ static void s3c_rtc_release(struct device *dev) /* do not clear AIE here, it may be needed for wake */ - s3c_rtc_setpie(0); + s3c_rtc_setpie(dev, 0); free_irq(s3c_rtc_alarmno, rtc_dev); free_irq(s3c_rtc_tickno, rtc_dev); } @@ -382,11 +330,12 @@ static void s3c_rtc_release(struct device *dev) static const struct rtc_class_ops s3c_rtcops = { .open = s3c_rtc_open, .release = s3c_rtc_release, - .ioctl = s3c_rtc_ioctl, .read_time = s3c_rtc_gettime, .set_time = s3c_rtc_settime, .read_alarm = s3c_rtc_getalarm, .set_alarm = s3c_rtc_setalarm, + .irq_set_freq = s3c_rtc_setfreq, + .irq_set_state = s3c_rtc_setpie, .proc = s3c_rtc_proc, }; @@ -430,14 +379,14 @@ static void s3c_rtc_enable(struct platform_device *pdev, int en) } } -static int s3c_rtc_remove(struct platform_device *dev) +static int __devexit s3c_rtc_remove(struct platform_device *dev) { struct rtc_device *rtc = platform_get_drvdata(dev); platform_set_drvdata(dev, NULL); rtc_device_unregister(rtc); - s3c_rtc_setpie(0); + s3c_rtc_setpie(&dev->dev, 0); s3c_rtc_setaie(0); iounmap(s3c_rtc_base); @@ -447,7 +396,7 @@ static int s3c_rtc_remove(struct platform_device *dev) return 0; } -static int s3c_rtc_probe(struct platform_device *pdev) +static int __devinit s3c_rtc_probe(struct platform_device *pdev) { struct rtc_device *rtc; struct resource *res; @@ -504,7 +453,7 @@ static int s3c_rtc_probe(struct platform_device *pdev) pr_debug("s3c2410_rtc: RTCCON=%02x\n", readb(s3c_rtc_base + S3C2410_RTCCON)); - s3c_rtc_setfreq(s3c_rtc_freq); + s3c_rtc_setfreq(&pdev->dev, 1); /* register RTC and exit */ @@ -560,7 +509,7 @@ static int s3c_rtc_resume(struct platform_device *pdev) static struct platform_driver s3c2410_rtcdrv = { .probe = s3c_rtc_probe, - .remove = s3c_rtc_remove, + .remove = __devexit_p(s3c_rtc_remove), .suspend = s3c_rtc_suspend, .resume = s3c_rtc_resume, .driver = { diff --git a/drivers/rtc/rtc-vr41xx.c b/drivers/rtc/rtc-vr41xx.c index be9c70d..884b635 100644 --- a/drivers/rtc/rtc-vr41xx.c +++ b/drivers/rtc/rtc-vr41xx.c @@ -1,7 +1,7 @@ /* * Driver for NEC VR4100 series Real Time Clock unit. * - * Copyright (C) 2003-2006 Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> + * Copyright (C) 2003-2008 Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -34,7 +34,7 @@ MODULE_AUTHOR("Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>"); MODULE_DESCRIPTION("NEC VR4100 series RTC driver"); -MODULE_LICENSE("GPL"); +MODULE_LICENSE("GPL v2"); /* RTC 1 registers */ #define ETIMELREG 0x00 @@ -82,7 +82,6 @@ static unsigned long epoch = 1970; /* Jan 1 1970 00:00:00 */ static DEFINE_SPINLOCK(rtc_lock); static char rtc_name[] = "RTC"; -static unsigned long periodic_frequency; static unsigned long periodic_count; static unsigned int alarm_enabled; static int aie_irq = -1; @@ -207,10 +206,37 @@ static int vr41xx_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *wkalrm) return 0; } -static int vr41xx_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) +static int vr41xx_rtc_irq_set_freq(struct device *dev, int freq) { unsigned long count; + count = RTC_FREQUENCY; + do_div(count, freq); + + periodic_count = count; + + spin_lock_irq(&rtc_lock); + + rtc1_write(RTCL1LREG, count); + rtc1_write(RTCL1HREG, count >> 16); + + spin_unlock_irq(&rtc_lock); + + return 0; +} + +static int vr41xx_rtc_irq_set_state(struct device *dev, int enabled) +{ + if (enabled) + enable_irq(pie_irq); + else + disable_irq(pie_irq); + + return 0; +} + +static int vr41xx_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) +{ switch (cmd) { case RTC_AIE_ON: spin_lock_irq(&rtc_lock); @@ -232,33 +258,6 @@ static int vr41xx_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long spin_unlock_irq(&rtc_lock); break; - case RTC_PIE_ON: - enable_irq(pie_irq); - break; - case RTC_PIE_OFF: - disable_irq(pie_irq); - break; - case RTC_IRQP_READ: - return put_user(periodic_frequency, (unsigned long __user *)arg); - break; - case RTC_IRQP_SET: - if (arg > MAX_PERIODIC_RATE) - return -EINVAL; - - periodic_frequency = arg; - - count = RTC_FREQUENCY; - do_div(count, arg); - - periodic_count = count; - - spin_lock_irq(&rtc_lock); - - rtc1_write(RTCL1LREG, count); - rtc1_write(RTCL1HREG, count >> 16); - - spin_unlock_irq(&rtc_lock); - break; case RTC_EPOCH_READ: return put_user(epoch, (unsigned long __user *)arg); case RTC_EPOCH_SET: @@ -309,6 +308,8 @@ static const struct rtc_class_ops vr41xx_rtc_ops = { .set_time = vr41xx_rtc_set_time, .read_alarm = vr41xx_rtc_read_alarm, .set_alarm = vr41xx_rtc_set_alarm, + .irq_set_freq = vr41xx_rtc_irq_set_freq, + .irq_set_state = vr41xx_rtc_irq_set_state, }; static int __devinit rtc_probe(struct platform_device *pdev) @@ -346,6 +347,8 @@ static int __devinit rtc_probe(struct platform_device *pdev) goto err_iounmap_all; } + rtc->max_user_freq = MAX_PERIODIC_RATE; + spin_lock_irq(&rtc_lock); rtc1_write(ECMPLREG, 0); diff --git a/drivers/s390/kvm/kvm_virtio.c b/drivers/s390/kvm/kvm_virtio.c index 5ab3434..79954bd 100644 --- a/drivers/s390/kvm/kvm_virtio.c +++ b/drivers/s390/kvm/kvm_virtio.c @@ -15,6 +15,7 @@ #include <linux/err.h> #include <linux/virtio.h> #include <linux/virtio_config.h> +#include <linux/virtio_console.h> #include <linux/interrupt.h> #include <linux/virtio_ring.h> #include <linux/pfn.h> @@ -87,16 +88,20 @@ static u32 kvm_get_features(struct virtio_device *vdev) return features; } -static void kvm_set_features(struct virtio_device *vdev, u32 features) +static void kvm_finalize_features(struct virtio_device *vdev) { - unsigned int i; + unsigned int i, bits; struct kvm_device_desc *desc = to_kvmdev(vdev)->desc; /* Second half of bitmap is features we accept. */ u8 *out_features = kvm_vq_features(desc) + desc->feature_len; + /* Give virtio_ring a chance to accept features. */ + vring_transport_features(vdev); + memset(out_features, 0, desc->feature_len); - for (i = 0; i < min(desc->feature_len * 8, 32); i++) { - if (features & (1 << i)) + bits = min_t(unsigned, desc->feature_len, sizeof(vdev->features)) * 8; + for (i = 0; i < bits; i++) { + if (test_bit(i, vdev->features)) out_features[i / 8] |= (1 << (i % 8)); } } @@ -222,7 +227,7 @@ static void kvm_del_vq(struct virtqueue *vq) */ static struct virtio_config_ops kvm_vq_configspace_ops = { .get_features = kvm_get_features, - .set_features = kvm_set_features, + .finalize_features = kvm_finalize_features, .get = kvm_get, .set = kvm_set, .get_status = kvm_get_status, @@ -333,6 +338,25 @@ static int __init kvm_devices_init(void) return 0; } +/* code for early console output with virtio_console */ +static __init int early_put_chars(u32 vtermno, const char *buf, int count) +{ + char scratch[17]; + unsigned int len = count; + + if (len > sizeof(scratch) - 1) + len = sizeof(scratch) - 1; + scratch[len] = '\0'; + memcpy(scratch, buf, len); + kvm_hypercall1(KVM_S390_VIRTIO_NOTIFY, __pa(scratch)); + return len; +} + +void s390_virtio_console_init(void) +{ + virtio_cons_early_init(early_put_chars); +} + /* * We do this after core stuff, but before the drivers. */ diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index c3ad89e..cebb25e 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -3321,7 +3321,7 @@ int qeth_change_mtu(struct net_device *dev, int new_mtu) struct qeth_card *card; char dbf_text[15]; - card = netdev_priv(dev); + card = dev->ml_priv; QETH_DBF_TEXT(TRACE, 4, "chgmtu"); sprintf(dbf_text, "%8x", new_mtu); @@ -3343,7 +3343,7 @@ struct net_device_stats *qeth_get_stats(struct net_device *dev) { struct qeth_card *card; - card = netdev_priv(dev); + card = dev->ml_priv; QETH_DBF_TEXT(TRACE, 5, "getstat"); @@ -3395,7 +3395,7 @@ void qeth_tx_timeout(struct net_device *dev) { struct qeth_card *card; - card = netdev_priv(dev); + card = dev->ml_priv; card->stats.tx_errors++; qeth_schedule_recovery(card); } @@ -3403,7 +3403,7 @@ EXPORT_SYMBOL_GPL(qeth_tx_timeout); int qeth_mdio_read(struct net_device *dev, int phy_id, int regnum) { - struct qeth_card *card = netdev_priv(dev); + struct qeth_card *card = dev->ml_priv; int rc = 0; switch (regnum) { @@ -4253,7 +4253,7 @@ EXPORT_SYMBOL_GPL(qeth_core_get_stats_count); void qeth_core_get_ethtool_stats(struct net_device *dev, struct ethtool_stats *stats, u64 *data) { - struct qeth_card *card = netdev_priv(dev); + struct qeth_card *card = dev->ml_priv; data[0] = card->stats.rx_packets - card->perf_stats.initial_rx_packets; data[1] = card->perf_stats.bufs_rec; @@ -4313,7 +4313,7 @@ EXPORT_SYMBOL_GPL(qeth_core_get_strings); void qeth_core_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) { - struct qeth_card *card = netdev_priv(dev); + struct qeth_card *card = dev->ml_priv; if (card->options.layer2) strcpy(info->driver, "qeth_l2"); else @@ -4331,7 +4331,7 @@ EXPORT_SYMBOL_GPL(qeth_core_get_drvinfo); int qeth_core_ethtool_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd) { - struct qeth_card *card = netdev_priv(netdev); + struct qeth_card *card = netdev->ml_priv; enum qeth_link_types link_type; if ((card->info.type == QETH_CARD_TYPE_IQD) || (card->info.guestlan)) diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c index 3fbc3bd..a8b069c 100644 --- a/drivers/s390/net/qeth_l2_main.c +++ b/drivers/s390/net/qeth_l2_main.c @@ -35,7 +35,7 @@ static int qeth_l2_recover(void *); static int qeth_l2_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) { - struct qeth_card *card = netdev_priv(dev); + struct qeth_card *card = dev->ml_priv; struct mii_ioctl_data *mii_data; int rc = 0; @@ -317,7 +317,7 @@ static void qeth_l2_process_vlans(struct qeth_card *card, int clear) static void qeth_l2_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) { - struct qeth_card *card = netdev_priv(dev); + struct qeth_card *card = dev->ml_priv; struct qeth_vlan_vid *id; QETH_DBF_TEXT_(TRACE, 4, "aid:%d", vid); @@ -334,7 +334,7 @@ static void qeth_l2_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) static void qeth_l2_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) { struct qeth_vlan_vid *id, *tmpid = NULL; - struct qeth_card *card = netdev_priv(dev); + struct qeth_card *card = dev->ml_priv; QETH_DBF_TEXT_(TRACE, 4, "kid:%d", vid); spin_lock_bh(&card->vlanlock); @@ -566,7 +566,7 @@ static int qeth_l2_request_initial_mac(struct qeth_card *card) static int qeth_l2_set_mac_address(struct net_device *dev, void *p) { struct sockaddr *addr = p; - struct qeth_card *card = netdev_priv(dev); + struct qeth_card *card = dev->ml_priv; int rc = 0; QETH_DBF_TEXT(TRACE, 3, "setmac"); @@ -590,7 +590,7 @@ static int qeth_l2_set_mac_address(struct net_device *dev, void *p) static void qeth_l2_set_multicast_list(struct net_device *dev) { - struct qeth_card *card = netdev_priv(dev); + struct qeth_card *card = dev->ml_priv; struct dev_mc_list *dm; if (card->info.type == QETH_CARD_TYPE_OSN) @@ -612,7 +612,7 @@ static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) int rc; struct qeth_hdr *hdr = NULL; int elements = 0; - struct qeth_card *card = netdev_priv(dev); + struct qeth_card *card = dev->ml_priv; struct sk_buff *new_skb = skb; int ipv = qeth_get_ip_version(skb); int cast_type = qeth_get_cast_type(card, skb); @@ -767,7 +767,7 @@ static void qeth_l2_qdio_input_handler(struct ccw_device *ccwdev, static int qeth_l2_open(struct net_device *dev) { - struct qeth_card *card = netdev_priv(dev); + struct qeth_card *card = dev->ml_priv; QETH_DBF_TEXT(TRACE, 4, "qethopen"); if (card->state != CARD_STATE_SOFTSETUP) @@ -791,7 +791,7 @@ static int qeth_l2_open(struct net_device *dev) static int qeth_l2_stop(struct net_device *dev) { - struct qeth_card *card = netdev_priv(dev); + struct qeth_card *card = dev->ml_priv; QETH_DBF_TEXT(TRACE, 4, "qethstop"); netif_tx_disable(dev); @@ -838,7 +838,7 @@ static void qeth_l2_remove_device(struct ccwgroup_device *cgdev) static int qeth_l2_ethtool_set_tso(struct net_device *dev, u32 data) { - struct qeth_card *card = netdev_priv(dev); + struct qeth_card *card = dev->ml_priv; if (data) { if (card->options.large_send == QETH_LARGE_SEND_NO) { @@ -894,7 +894,7 @@ static int qeth_l2_setup_netdev(struct qeth_card *card) if (!card->dev) return -ENODEV; - card->dev->priv = card; + card->dev->ml_priv = card; card->dev->tx_timeout = &qeth_tx_timeout; card->dev->watchdog_timeo = QETH_TX_TIMEOUT; card->dev->open = qeth_l2_open; @@ -1178,7 +1178,7 @@ int qeth_osn_assist(struct net_device *dev, void *data, int data_len) QETH_DBF_TEXT(TRACE, 2, "osnsdmc"); if (!dev) return -ENODEV; - card = netdev_priv(dev); + card = dev->ml_priv; if (!card) return -ENODEV; if ((card->state != CARD_STATE_UP) && @@ -1201,7 +1201,7 @@ int qeth_osn_register(unsigned char *read_dev_no, struct net_device **dev, *dev = qeth_l2_netdev_by_devno(read_dev_no); if (*dev == NULL) return -ENODEV; - card = netdev_priv(*dev); + card = (*dev)->ml_priv; if (!card) return -ENODEV; if ((assist_cb == NULL) || (data_cb == NULL)) @@ -1219,7 +1219,7 @@ void qeth_osn_deregister(struct net_device *dev) QETH_DBF_TEXT(TRACE, 2, "osndereg"); if (!dev) return; - card = netdev_priv(dev); + card = dev->ml_priv; if (!card) return; card->osn_info.assist_cb = NULL; diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c index 38de31b..3e1d138 100644 --- a/drivers/s390/net/qeth_l3_main.c +++ b/drivers/s390/net/qeth_l3_main.c @@ -1813,7 +1813,7 @@ static void qeth_l3_free_vlan_addresses(struct qeth_card *card, static void qeth_l3_vlan_rx_register(struct net_device *dev, struct vlan_group *grp) { - struct qeth_card *card = netdev_priv(dev); + struct qeth_card *card = dev->ml_priv; unsigned long flags; QETH_DBF_TEXT(TRACE, 4, "vlanreg"); @@ -1825,7 +1825,7 @@ static void qeth_l3_vlan_rx_register(struct net_device *dev, static void qeth_l3_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) { struct net_device *vlandev; - struct qeth_card *card = (struct qeth_card *) dev->priv; + struct qeth_card *card = dev->ml_priv; struct in_device *in_dev; if (card->info.type == QETH_CARD_TYPE_IQD) @@ -1851,7 +1851,7 @@ static void qeth_l3_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) static void qeth_l3_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) { - struct qeth_card *card = netdev_priv(dev); + struct qeth_card *card = dev->ml_priv; unsigned long flags; QETH_DBF_TEXT_(TRACE, 4, "kid:%d", vid); @@ -2013,7 +2013,7 @@ static int qeth_l3_verify_vlan_dev(struct net_device *dev, } } - if (rc && !(netdev_priv(vlan_dev_real_dev(dev)) == (void *)card)) + if (rc && !(vlan_dev_real_dev(dev)->ml_priv == (void *)card)) return 0; return rc; @@ -2047,9 +2047,9 @@ static struct qeth_card *qeth_l3_get_card_from_dev(struct net_device *dev) rc = qeth_l3_verify_dev(dev); if (rc == QETH_REAL_CARD) - card = netdev_priv(dev); + card = dev->ml_priv; else if (rc == QETH_VLAN_CARD) - card = netdev_priv(vlan_dev_real_dev(dev)); + card = vlan_dev_real_dev(dev)->ml_priv; if (card && card->options.layer2) card = NULL; QETH_DBF_TEXT_(TRACE, 4, "%d", rc); @@ -2110,7 +2110,7 @@ static int qeth_l3_stop_card(struct qeth_card *card, int recovery_mode) static void qeth_l3_set_multicast_list(struct net_device *dev) { - struct qeth_card *card = netdev_priv(dev); + struct qeth_card *card = dev->ml_priv; QETH_DBF_TEXT(TRACE, 3, "setmulti"); qeth_l3_delete_mc_addresses(card); @@ -2438,7 +2438,7 @@ static int qeth_l3_arp_flush_cache(struct qeth_card *card) static int qeth_l3_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) { - struct qeth_card *card = netdev_priv(dev); + struct qeth_card *card = dev->ml_priv; struct qeth_arp_cache_entry arp_entry; struct mii_ioctl_data *mii_data; int rc = 0; @@ -2595,7 +2595,7 @@ static int qeth_l3_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) u16 *tag; struct qeth_hdr *hdr = NULL; int elements_needed = 0; - struct qeth_card *card = netdev_priv(dev); + struct qeth_card *card = dev->ml_priv; struct sk_buff *new_skb = NULL; int ipv = qeth_get_ip_version(skb); int cast_type = qeth_get_cast_type(card, skb); @@ -2763,7 +2763,7 @@ tx_drop: static int qeth_l3_open(struct net_device *dev) { - struct qeth_card *card = netdev_priv(dev); + struct qeth_card *card = dev->ml_priv; QETH_DBF_TEXT(TRACE, 4, "qethopen"); if (card->state != CARD_STATE_SOFTSETUP) @@ -2780,7 +2780,7 @@ static int qeth_l3_open(struct net_device *dev) static int qeth_l3_stop(struct net_device *dev) { - struct qeth_card *card = netdev_priv(dev); + struct qeth_card *card = dev->ml_priv; QETH_DBF_TEXT(TRACE, 4, "qethstop"); netif_tx_disable(dev); @@ -2792,14 +2792,14 @@ static int qeth_l3_stop(struct net_device *dev) static u32 qeth_l3_ethtool_get_rx_csum(struct net_device *dev) { - struct qeth_card *card = netdev_priv(dev); + struct qeth_card *card = dev->ml_priv; return (card->options.checksum_type == HW_CHECKSUMMING); } static int qeth_l3_ethtool_set_rx_csum(struct net_device *dev, u32 data) { - struct qeth_card *card = netdev_priv(dev); + struct qeth_card *card = dev->ml_priv; enum qeth_card_states old_state; enum qeth_checksum_types csum_type; @@ -2825,7 +2825,7 @@ static int qeth_l3_ethtool_set_rx_csum(struct net_device *dev, u32 data) static int qeth_l3_ethtool_set_tso(struct net_device *dev, u32 data) { - struct qeth_card *card = netdev_priv(dev); + struct qeth_card *card = dev->ml_priv; if (data) { if (card->options.large_send == QETH_LARGE_SEND_NO) { @@ -2915,7 +2915,7 @@ static int qeth_l3_setup_netdev(struct qeth_card *card) return -ENODEV; card->dev->hard_start_xmit = qeth_l3_hard_start_xmit; - card->dev->priv = card; + card->dev->ml_priv = card; card->dev->tx_timeout = &qeth_tx_timeout; card->dev->watchdog_timeo = QETH_TX_TIMEOUT; card->dev->open = qeth_l3_open; diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index eb702b9..61f8fde 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -3525,7 +3525,7 @@ static int ibmvfc_init_crq(struct ibmvfc_host *vhost) crq->msg_token = dma_map_single(dev, crq->msgs, PAGE_SIZE, DMA_BIDIRECTIONAL); - if (dma_mapping_error(crq->msg_token)) + if (dma_mapping_error(dev, crq->msg_token)) goto map_failed; retrc = rc = plpar_hcall_norets(H_REG_CRQ, vdev->unit_address, @@ -3618,7 +3618,7 @@ static int ibmvfc_alloc_mem(struct ibmvfc_host *vhost) async_q->size * sizeof(*async_q->msgs), DMA_BIDIRECTIONAL); - if (dma_mapping_error(async_q->msg_token)) { + if (dma_mapping_error(dev, async_q->msg_token)) { dev_err(dev, "Failed to map async queue\n"); goto free_async_crq; } @@ -3819,6 +3819,20 @@ static int ibmvfc_remove(struct vio_dev *vdev) return 0; } +/** + * ibmvfc_get_desired_dma - Calculate DMA resources needed by the driver + * @vdev: vio device struct + * + * Return value: + * Number of bytes the driver will need to DMA map at the same time in + * order to perform well. + */ +static unsigned long ibmvfc_get_desired_dma(struct vio_dev *vdev) +{ + unsigned long pool_dma = max_requests * sizeof(union ibmvfc_iu); + return pool_dma + ((512 * 1024) * driver_template.cmd_per_lun); +} + static struct vio_device_id ibmvfc_device_table[] __devinitdata = { {"fcp", "IBM,vfc-client"}, { "", "" } @@ -3829,6 +3843,7 @@ static struct vio_driver ibmvfc_driver = { .id_table = ibmvfc_device_table, .probe = ibmvfc_probe, .remove = ibmvfc_remove, + .get_desired_dma = ibmvfc_get_desired_dma, .driver = { .name = IBMVFC_NAME, .owner = THIS_MODULE, diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c index 5d23368..6b24b9c 100644 --- a/drivers/scsi/ibmvscsi/ibmvscsi.c +++ b/drivers/scsi/ibmvscsi/ibmvscsi.c @@ -72,6 +72,7 @@ #include <linux/delay.h> #include <asm/firmware.h> #include <asm/vio.h> +#include <asm/firmware.h> #include <scsi/scsi.h> #include <scsi/scsi_cmnd.h> #include <scsi/scsi_host.h> @@ -426,8 +427,10 @@ static int map_sg_data(struct scsi_cmnd *cmd, SG_ALL * sizeof(struct srp_direct_buf), &evt_struct->ext_list_token, 0); if (!evt_struct->ext_list) { - sdev_printk(KERN_ERR, cmd->device, - "Can't allocate memory for indirect table\n"); + if (!firmware_has_feature(FW_FEATURE_CMO)) + sdev_printk(KERN_ERR, cmd->device, + "Can't allocate memory " + "for indirect table\n"); return 0; } } @@ -743,7 +746,9 @@ static int ibmvscsi_queuecommand(struct scsi_cmnd *cmnd, srp_cmd->lun = ((u64) lun) << 48; if (!map_data_for_srp_cmd(cmnd, evt_struct, srp_cmd, hostdata->dev)) { - sdev_printk(KERN_ERR, cmnd->device, "couldn't convert cmd to srp_cmd\n"); + if (!firmware_has_feature(FW_FEATURE_CMO)) + sdev_printk(KERN_ERR, cmnd->device, + "couldn't convert cmd to srp_cmd\n"); free_event_struct(&hostdata->pool, evt_struct); return SCSI_MLQUEUE_HOST_BUSY; } @@ -854,8 +859,11 @@ static void send_mad_adapter_info(struct ibmvscsi_host_data *hostdata) sizeof(hostdata->madapter_info), DMA_BIDIRECTIONAL); - if (dma_mapping_error(req->buffer)) { - dev_err(hostdata->dev, "Unable to map request_buffer for adapter_info!\n"); + if (dma_mapping_error(hostdata->dev, req->buffer)) { + if (!firmware_has_feature(FW_FEATURE_CMO)) + dev_err(hostdata->dev, + "Unable to map request_buffer for " + "adapter_info!\n"); free_event_struct(&hostdata->pool, evt_struct); return; } @@ -1399,8 +1407,10 @@ static int ibmvscsi_do_host_config(struct ibmvscsi_host_data *hostdata, length, DMA_BIDIRECTIONAL); - if (dma_mapping_error(host_config->buffer)) { - dev_err(hostdata->dev, "dma_mapping error getting host config\n"); + if (dma_mapping_error(hostdata->dev, host_config->buffer)) { + if (!firmware_has_feature(FW_FEATURE_CMO)) + dev_err(hostdata->dev, + "dma_mapping error getting host config\n"); free_event_struct(&hostdata->pool, evt_struct); return -1; } @@ -1604,7 +1614,7 @@ static struct scsi_host_template driver_template = { .eh_host_reset_handler = ibmvscsi_eh_host_reset_handler, .slave_configure = ibmvscsi_slave_configure, .change_queue_depth = ibmvscsi_change_queue_depth, - .cmd_per_lun = 16, + .cmd_per_lun = IBMVSCSI_CMDS_PER_LUN_DEFAULT, .can_queue = IBMVSCSI_MAX_REQUESTS_DEFAULT, .this_id = -1, .sg_tablesize = SG_ALL, @@ -1613,6 +1623,26 @@ static struct scsi_host_template driver_template = { }; /** + * ibmvscsi_get_desired_dma - Calculate IO memory desired by the driver + * + * @vdev: struct vio_dev for the device whose desired IO mem is to be returned + * + * Return value: + * Number of bytes of IO data the driver will need to perform well. + */ +static unsigned long ibmvscsi_get_desired_dma(struct vio_dev *vdev) +{ + /* iu_storage data allocated in initialize_event_pool */ + unsigned long desired_io = max_requests * sizeof(union viosrp_iu); + + /* add io space for sg data */ + desired_io += (IBMVSCSI_MAX_SECTORS_DEFAULT * + IBMVSCSI_CMDS_PER_LUN_DEFAULT); + + return desired_io; +} + +/** * Called by bus code for each adapter */ static int ibmvscsi_probe(struct vio_dev *vdev, const struct vio_device_id *id) @@ -1641,7 +1671,7 @@ static int ibmvscsi_probe(struct vio_dev *vdev, const struct vio_device_id *id) hostdata->host = host; hostdata->dev = dev; atomic_set(&hostdata->request_limit, -1); - hostdata->host->max_sectors = 32 * 8; /* default max I/O 32 pages */ + hostdata->host->max_sectors = IBMVSCSI_MAX_SECTORS_DEFAULT; rc = ibmvscsi_ops->init_crq_queue(&hostdata->queue, hostdata, max_requests); if (rc != 0 && rc != H_RESOURCE) { @@ -1735,6 +1765,7 @@ static struct vio_driver ibmvscsi_driver = { .id_table = ibmvscsi_device_table, .probe = ibmvscsi_probe, .remove = ibmvscsi_remove, + .get_desired_dma = ibmvscsi_get_desired_dma, .driver = { .name = "ibmvscsi", .owner = THIS_MODULE, diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.h b/drivers/scsi/ibmvscsi/ibmvscsi.h index 46e850e..2d4339d 100644 --- a/drivers/scsi/ibmvscsi/ibmvscsi.h +++ b/drivers/scsi/ibmvscsi/ibmvscsi.h @@ -45,6 +45,8 @@ struct Scsi_Host; #define MAX_INDIRECT_BUFS 10 #define IBMVSCSI_MAX_REQUESTS_DEFAULT 100 +#define IBMVSCSI_CMDS_PER_LUN_DEFAULT 16 +#define IBMVSCSI_MAX_SECTORS_DEFAULT 256 /* 32 * 8 = default max I/O 32 pages */ #define IBMVSCSI_MAX_CMDS_PER_LUN 64 /* ------------------------------------------------------------ diff --git a/drivers/scsi/ibmvscsi/ibmvstgt.c b/drivers/scsi/ibmvscsi/ibmvstgt.c index 3b9514c..2e13ec0 100644 --- a/drivers/scsi/ibmvscsi/ibmvstgt.c +++ b/drivers/scsi/ibmvscsi/ibmvstgt.c @@ -564,7 +564,7 @@ static int crq_queue_create(struct crq_queue *queue, struct srp_target *target) queue->size * sizeof(*queue->msgs), DMA_BIDIRECTIONAL); - if (dma_mapping_error(queue->msg_token)) + if (dma_mapping_error(target->dev, queue->msg_token)) goto map_failed; err = h_reg_crq(vport->dma_dev->unit_address, queue->msg_token, diff --git a/drivers/scsi/ibmvscsi/rpa_vscsi.c b/drivers/scsi/ibmvscsi/rpa_vscsi.c index 1821461..462a857 100644 --- a/drivers/scsi/ibmvscsi/rpa_vscsi.c +++ b/drivers/scsi/ibmvscsi/rpa_vscsi.c @@ -253,7 +253,7 @@ static int rpavscsi_init_crq_queue(struct crq_queue *queue, queue->size * sizeof(*queue->msgs), DMA_BIDIRECTIONAL); - if (dma_mapping_error(queue->msg_token)) + if (dma_mapping_error(hostdata->dev, queue->msg_token)) goto map_failed; gather_partition_info(); diff --git a/drivers/scsi/ide-scsi.c b/drivers/scsi/ide-scsi.c index 5385524..b40a673 100644 --- a/drivers/scsi/ide-scsi.c +++ b/drivers/scsi/ide-scsi.c @@ -101,8 +101,13 @@ static struct ide_scsi_obj *ide_scsi_get(struct gendisk *disk) mutex_lock(&idescsi_ref_mutex); scsi = ide_scsi_g(disk); - if (scsi) + if (scsi) { scsi_host_get(scsi->host); + if (ide_device_get(scsi->drive)) { + scsi_host_put(scsi->host); + scsi = NULL; + } + } mutex_unlock(&idescsi_ref_mutex); return scsi; } @@ -110,6 +115,7 @@ static struct ide_scsi_obj *ide_scsi_get(struct gendisk *disk) static void ide_scsi_put(struct ide_scsi_obj *scsi) { mutex_lock(&idescsi_ref_mutex); + ide_device_put(scsi->drive); scsi_host_put(scsi->host); mutex_unlock(&idescsi_ref_mutex); } @@ -201,15 +207,15 @@ static int idescsi_check_condition(ide_drive_t *drive, /* stuff a sense request in front of our current request */ pc = kzalloc(sizeof(struct ide_atapi_pc), GFP_ATOMIC); - rq = kmalloc(sizeof(struct request), GFP_ATOMIC); + rq = blk_get_request(drive->queue, READ, GFP_ATOMIC); buf = kzalloc(SCSI_SENSE_BUFFERSIZE, GFP_ATOMIC); if (!pc || !rq || !buf) { kfree(buf); - kfree(rq); + if (rq) + blk_put_request(rq); kfree(pc); return -ENOMEM; } - blk_rq_init(NULL, rq); rq->special = (char *) pc; pc->rq = rq; pc->buf = buf; @@ -226,6 +232,7 @@ static int idescsi_check_condition(ide_drive_t *drive, ide_scsi_hex_dump(pc->c, 6); } rq->rq_disk = scsi->disk; + rq->ref_count++; memcpy(rq->cmd, pc->c, 12); ide_do_drive_cmd(drive, rq); return 0; @@ -272,7 +279,7 @@ static int idescsi_end_request (ide_drive_t *drive, int uptodate, int nrsecs) SCSI_SENSE_BUFFERSIZE); kfree(pc->buf); kfree(pc); - kfree(rq); + blk_put_request(rq); pc = opc; rq = pc->rq; pc->scsi_cmd->result = (CHECK_CONDITION << 1) | @@ -303,7 +310,7 @@ static int idescsi_end_request (ide_drive_t *drive, int uptodate, int nrsecs) pc->done(pc->scsi_cmd); spin_unlock_irqrestore(host->host_lock, flags); kfree(pc); - kfree(rq); + blk_put_request(rq); scsi->pc = NULL; return 0; } @@ -577,6 +584,7 @@ static int idescsi_queue (struct scsi_cmnd *cmd, ide_drive_t *drive = scsi->drive; struct request *rq = NULL; struct ide_atapi_pc *pc = NULL; + int write = cmd->sc_data_direction == DMA_TO_DEVICE; if (!drive) { scmd_printk (KERN_ERR, cmd, "drive not present\n"); @@ -584,7 +592,7 @@ static int idescsi_queue (struct scsi_cmnd *cmd, } scsi = drive_to_idescsi(drive); pc = kmalloc(sizeof(struct ide_atapi_pc), GFP_ATOMIC); - rq = kmalloc(sizeof(struct request), GFP_ATOMIC); + rq = blk_get_request(drive->queue, write, GFP_ATOMIC); if (rq == NULL || pc == NULL) { printk (KERN_ERR "ide-scsi: %s: out of memory\n", drive->name); goto abort; @@ -614,17 +622,18 @@ static int idescsi_queue (struct scsi_cmnd *cmd, } } - blk_rq_init(NULL, rq); rq->special = (char *) pc; rq->cmd_type = REQ_TYPE_SPECIAL; spin_unlock_irq(host->host_lock); + rq->ref_count++; memcpy(rq->cmd, pc->c, 12); blk_execute_rq_nowait(drive->queue, scsi->disk, rq, 0, NULL); spin_lock_irq(host->host_lock); return 0; abort: kfree (pc); - kfree (rq); + if (rq) + blk_put_request(rq); cmd->result = DID_ERROR << 16; done(cmd); return 0; @@ -672,7 +681,9 @@ static int idescsi_eh_abort (struct scsi_cmnd *cmd) if (blk_sense_request(scsi->pc->rq)) kfree(scsi->pc->buf); - kfree(scsi->pc->rq); + /* we need to call blk_put_request twice. */ + blk_put_request(scsi->pc->rq); + blk_put_request(scsi->pc->rq); kfree(scsi->pc); scsi->pc = NULL; @@ -724,7 +735,7 @@ static int idescsi_eh_reset (struct scsi_cmnd *cmd) kfree(scsi->pc->buf); kfree(scsi->pc); scsi->pc = NULL; - kfree(req); + blk_put_request(req); /* now nuke the drive queue */ while ((req = elv_next_request(drive->queue))) { diff --git a/drivers/scsi/sun_esp.c b/drivers/scsi/sun_esp.c index 2c87db9..f9cf701 100644 --- a/drivers/scsi/sun_esp.c +++ b/drivers/scsi/sun_esp.c @@ -7,6 +7,7 @@ #include <linux/types.h> #include <linux/delay.h> #include <linux/module.h> +#include <linux/mm.h> #include <linux/init.h> #include <asm/irq.h> diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c index 27f34a9..a97f1ae 100644 --- a/drivers/serial/8250.c +++ b/drivers/serial/8250.c @@ -1293,7 +1293,18 @@ receive_chars(struct uart_8250_port *up, unsigned int *status) char flag; do { - ch = serial_inp(up, UART_RX); + if (likely(lsr & UART_LSR_DR)) + ch = serial_inp(up, UART_RX); + else + /* + * Intel 82571 has a Serial Over Lan device that will + * set UART_LSR_BI without setting UART_LSR_DR when + * it receives a break. To avoid reading from the + * receive buffer without UART_LSR_DR bit set, we + * just force the read character to be 0 + */ + ch = 0; + flag = TTY_NORMAL; up->port.icount.rx++; @@ -1342,7 +1353,7 @@ receive_chars(struct uart_8250_port *up, unsigned int *status) ignore_char: lsr = serial_inp(up, UART_LSR); - } while ((lsr & UART_LSR_DR) && (max_count-- > 0)); + } while ((lsr & (UART_LSR_DR | UART_LSR_BI)) && (max_count-- > 0)); spin_unlock(&up->port.lock); tty_flip_buffer_push(tty); spin_lock(&up->port.lock); @@ -1425,7 +1436,7 @@ serial8250_handle_port(struct uart_8250_port *up) DEBUG_INTR("status = %x...", status); - if (status & UART_LSR_DR) + if (status & (UART_LSR_DR | UART_LSR_BI)) receive_chars(up, &status); check_modem_status(up); if (status & UART_LSR_THRE) diff --git a/drivers/serial/8250_gsc.c b/drivers/serial/8250_gsc.c index 4eb7437..0416ad3 100644 --- a/drivers/serial/8250_gsc.c +++ b/drivers/serial/8250_gsc.c @@ -119,3 +119,5 @@ int __init probe_serial_gsc(void) } module_init(probe_serial_gsc); + +MODULE_LICENSE("GPL"); diff --git a/drivers/serial/8250_pci.c b/drivers/serial/8250_pci.c index 1b36087..c2f2393 100644 --- a/drivers/serial/8250_pci.c +++ b/drivers/serial/8250_pci.c @@ -767,6 +767,9 @@ pci_default_setup(struct serial_private *priv, struct pciserial_board *board, #define PCI_SUBDEVICE_ID_POCTAL232 0x0308 #define PCI_SUBDEVICE_ID_POCTAL422 0x0408 +/* Unknown vendors/cards - this should not be in linux/pci_ids.h */ +#define PCI_SUBDEVICE_ID_UNKNOWN_0x1584 0x1584 + /* * Master list of serial port init/setup/exit quirks. * This does not describe the general nature of the port. @@ -882,6 +885,15 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = { }, { .vendor = PCI_VENDOR_ID_PLX, + .device = PCI_DEVICE_ID_PLX_9050, + .subvendor = PCI_VENDOR_ID_PLX, + .subdevice = PCI_SUBDEVICE_ID_UNKNOWN_0x1584, + .init = pci_plx9050_init, + .setup = pci_default_setup, + .exit = __devexit_p(pci_plx9050_exit), + }, + { + .vendor = PCI_VENDOR_ID_PLX, .device = PCI_DEVICE_ID_PLX_ROMULUS, .subvendor = PCI_VENDOR_ID_PLX, .subdevice = PCI_DEVICE_ID_PLX_ROMULUS, @@ -2197,6 +2209,11 @@ static struct pci_device_id serial_pci_tbl[] = { { PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_1077, PCI_ANY_ID, PCI_ANY_ID, 0, 0, pbn_b2_4_921600 }, + /* Unknown card - subdevice 0x1584 */ + { PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9050, + PCI_VENDOR_ID_PLX, + PCI_SUBDEVICE_ID_UNKNOWN_0x1584, 0, 0, + pbn_b0_4_115200 }, { PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9050, PCI_SUBVENDOR_ID_KEYSPAN, PCI_SUBDEVICE_ID_KEYSPAN_SX2, 0, 0, diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig index 8fc7451..3b4a14e 100644 --- a/drivers/serial/Kconfig +++ b/drivers/serial/Kconfig @@ -942,22 +942,6 @@ config SERIAL_IP22_ZILOG_CONSOLE depends on SERIAL_IP22_ZILOG=y select SERIAL_CORE_CONSOLE -config V850E_UART - bool "NEC V850E on-chip UART support" - depends on V850E_MA1 || V850E_ME2 || V850E_TEG || V850E2_ANNA || V850E_AS85EP1 - select SERIAL_CORE - default y - -config V850E_UARTB - bool - depends on V850E_UART && V850E_ME2 - default y - -config V850E_UART_CONSOLE - bool "Use NEC V850E on-chip UART for console" - depends on V850E_UART - select SERIAL_CORE_CONSOLE - config SERIAL_SH_SCI tristate "SuperH SCI(F) serial port support" depends on SUPERH || H8300 diff --git a/drivers/serial/cpm_uart/cpm_uart_core.c b/drivers/serial/cpm_uart/cpm_uart_core.c index 1ff80de..a4f8692 100644 --- a/drivers/serial/cpm_uart/cpm_uart_core.c +++ b/drivers/serial/cpm_uart/cpm_uart_core.c @@ -435,10 +435,13 @@ static void cpm_uart_shutdown(struct uart_port *port) } /* Shut them really down and reinit buffer descriptors */ - if (IS_SMC(pinfo)) + if (IS_SMC(pinfo)) { + out_be16(&pinfo->smcup->smc_brkcr, 0); cpm_line_cr_cmd(pinfo, CPM_CR_STOP_TX); - else + } else { + out_be16(&pinfo->sccup->scc_brkcr, 0); cpm_line_cr_cmd(pinfo, CPM_CR_GRA_STOP_TX); + } cpm_uart_initbd(pinfo); } @@ -554,9 +557,11 @@ static void cpm_uart_set_termios(struct uart_port *port, * enables, because we want to put them back if they were * present. */ - prev_mode = in_be16(&smcp->smc_smcmr); - out_be16(&smcp->smc_smcmr, smcr_mk_clen(bits) | cval | SMCMR_SM_UART); - setbits16(&smcp->smc_smcmr, (prev_mode & (SMCMR_REN | SMCMR_TEN))); + prev_mode = in_be16(&smcp->smc_smcmr) & (SMCMR_REN | SMCMR_TEN); + /* Output in *one* operation, so we don't interrupt RX/TX if they + * were already enabled. */ + out_be16(&smcp->smc_smcmr, smcr_mk_clen(bits) | cval | + SMCMR_SM_UART | prev_mode); } else { out_be16(&sccp->scc_psmr, (sbits << 12) | scval); } @@ -1198,12 +1203,14 @@ static int __init cpm_uart_console_setup(struct console *co, char *options) udbg_putc = NULL; #endif - cpm_line_cr_cmd(pinfo, CPM_CR_STOP_TX); - if (IS_SMC(pinfo)) { + out_be16(&pinfo->smcup->smc_brkcr, 0); + cpm_line_cr_cmd(pinfo, CPM_CR_STOP_TX); clrbits8(&pinfo->smcp->smc_smcm, SMCM_RX | SMCM_TX); clrbits16(&pinfo->smcp->smc_smcmr, SMCMR_REN | SMCMR_TEN); } else { + out_be16(&pinfo->sccup->scc_brkcr, 0); + cpm_line_cr_cmd(pinfo, CPM_CR_GRA_STOP_TX); clrbits16(&pinfo->sccp->scc_sccm, UART_SCCM_TX | UART_SCCM_RX); clrbits32(&pinfo->sccp->scc_gsmrl, SCC_GSMRL_ENR | SCC_GSMRL_ENT); } diff --git a/drivers/serial/dz.c b/drivers/serial/dz.c index a81d2c2..6042b87 100644 --- a/drivers/serial/dz.c +++ b/drivers/serial/dz.c @@ -642,6 +642,26 @@ static void dz_set_termios(struct uart_port *uport, struct ktermios *termios, spin_unlock_irqrestore(&dport->port.lock, flags); } +/* + * Hack alert! + * Required solely so that the initial PROM-based console + * works undisturbed in parallel with this one. + */ +static void dz_pm(struct uart_port *uport, unsigned int state, + unsigned int oldstate) +{ + struct dz_port *dport = to_dport(uport); + unsigned long flags; + + spin_lock_irqsave(&dport->port.lock, flags); + if (state < 3) + dz_start_tx(&dport->port); + else + dz_stop_tx(&dport->port); + spin_unlock_irqrestore(&dport->port.lock, flags); +} + + static const char *dz_type(struct uart_port *uport) { return "DZ"; @@ -738,6 +758,7 @@ static struct uart_ops dz_ops = { .startup = dz_startup, .shutdown = dz_shutdown, .set_termios = dz_set_termios, + .pm = dz_pm, .type = dz_type, .release_port = dz_release_port, .request_port = dz_request_port, @@ -861,7 +882,10 @@ static int __init dz_console_setup(struct console *co, char *options) if (ret) return ret; + spin_lock_init(&dport->port.lock); /* For dz_pm(). */ + dz_reset(dport); + dz_pm(uport, 0, -1); if (options) uart_parse_options(options, &baud, &parity, &bits, &flow); diff --git a/drivers/serial/zs.c b/drivers/serial/zs.c index bd45b62..9e6a873 100644 --- a/drivers/serial/zs.c +++ b/drivers/serial/zs.c @@ -787,7 +787,6 @@ static int zs_startup(struct uart_port *uport) zport->regs[1] &= ~RxINT_MASK; zport->regs[1] |= RxINT_ALL | TxINT_ENAB | EXT_INT_ENAB; zport->regs[3] |= RxENABLE; - zport->regs[5] |= TxENAB; zport->regs[15] |= BRKIE; write_zsreg(zport, R1, zport->regs[1]); write_zsreg(zport, R3, zport->regs[3]); @@ -814,7 +813,6 @@ static void zs_shutdown(struct uart_port *uport) spin_lock_irqsave(&scc->zlock, flags); - zport->regs[5] &= ~TxENAB; zport->regs[3] &= ~RxENABLE; write_zsreg(zport, R5, zport->regs[5]); write_zsreg(zport, R3, zport->regs[3]); @@ -959,6 +957,23 @@ static void zs_set_termios(struct uart_port *uport, struct ktermios *termios, spin_unlock_irqrestore(&scc->zlock, flags); } +/* + * Hack alert! + * Required solely so that the initial PROM-based console + * works undisturbed in parallel with this one. + */ +static void zs_pm(struct uart_port *uport, unsigned int state, + unsigned int oldstate) +{ + struct zs_port *zport = to_zport(uport); + + if (state < 3) + zport->regs[5] |= TxENAB; + else + zport->regs[5] &= ~TxENAB; + write_zsreg(zport, R5, zport->regs[5]); +} + static const char *zs_type(struct uart_port *uport) { @@ -1041,6 +1056,7 @@ static struct uart_ops zs_ops = { .startup = zs_startup, .shutdown = zs_shutdown, .set_termios = zs_set_termios, + .pm = zs_pm, .type = zs_type, .release_port = zs_release_port, .request_port = zs_request_port, @@ -1190,6 +1206,7 @@ static int __init zs_console_setup(struct console *co, char *options) return ret; zs_reset(zport); + zs_pm(uport, 0, -1); if (options) uart_parse_options(options, &baud, &parity, &bits, &flow); diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig index 66ec5d8..2303521 100644 --- a/drivers/spi/Kconfig +++ b/drivers/spi/Kconfig @@ -49,25 +49,26 @@ config SPI_MASTER controller and the protocol drivers for the SPI slave chips that are connected. +if SPI_MASTER + comment "SPI Master Controller Drivers" - depends on SPI_MASTER config SPI_ATMEL tristate "Atmel SPI Controller" - depends on (ARCH_AT91 || AVR32) && SPI_MASTER + depends on (ARCH_AT91 || AVR32) help This selects a driver for the Atmel SPI Controller, present on many AT32 (AVR32) and AT91 (ARM) chips. config SPI_BFIN tristate "SPI controller driver for ADI Blackfin5xx" - depends on SPI_MASTER && BLACKFIN + depends on BLACKFIN help This is the SPI controller master driver for Blackfin 5xx processor. config SPI_AU1550 tristate "Au1550/Au12x0 SPI Controller" - depends on SPI_MASTER && (SOC_AU1550 || SOC_AU1200) && EXPERIMENTAL + depends on (SOC_AU1550 || SOC_AU1200) && EXPERIMENTAL select SPI_BITBANG help If you say yes to this option, support will be included for the @@ -78,7 +79,6 @@ config SPI_AU1550 config SPI_BITBANG tristate "Bitbanging SPI master" - depends on SPI_MASTER && EXPERIMENTAL help With a few GPIO pins, your system can bitbang the SPI protocol. Select this to get SPI support through I/O pins (GPIO, parallel @@ -92,7 +92,7 @@ config SPI_BITBANG config SPI_BUTTERFLY tristate "Parallel port adapter for AVR Butterfly (DEVELOPMENT)" - depends on SPI_MASTER && PARPORT && EXPERIMENTAL + depends on PARPORT select SPI_BITBANG help This uses a custom parallel port cable to connect to an AVR @@ -102,14 +102,14 @@ config SPI_BUTTERFLY config SPI_IMX tristate "Freescale iMX SPI controller" - depends on SPI_MASTER && ARCH_IMX && EXPERIMENTAL + depends on ARCH_IMX && EXPERIMENTAL help This enables using the Freescale iMX SPI controller in master mode. config SPI_LM70_LLP tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)" - depends on SPI_MASTER && PARPORT && EXPERIMENTAL + depends on PARPORT && EXPERIMENTAL select SPI_BITBANG help This driver supports the NS LM70 LLP Evaluation Board, @@ -118,14 +118,14 @@ config SPI_LM70_LLP config SPI_MPC52xx_PSC tristate "Freescale MPC52xx PSC SPI controller" - depends on SPI_MASTER && PPC_MPC52xx && EXPERIMENTAL + depends on PPC_MPC52xx && EXPERIMENTAL help This enables using the Freescale MPC52xx Programmable Serial Controller in master SPI mode. config SPI_MPC83xx tristate "Freescale MPC83xx/QUICC Engine SPI controller" - depends on SPI_MASTER && (PPC_83xx || QUICC_ENGINE) && EXPERIMENTAL + depends on (PPC_83xx || QUICC_ENGINE) && EXPERIMENTAL help This enables using the Freescale MPC83xx and QUICC Engine SPI controllers in master mode. @@ -137,21 +137,21 @@ config SPI_MPC83xx config SPI_OMAP_UWIRE tristate "OMAP1 MicroWire" - depends on SPI_MASTER && ARCH_OMAP1 + depends on ARCH_OMAP1 select SPI_BITBANG help This hooks up to the MicroWire controller on OMAP1 chips. config SPI_OMAP24XX tristate "McSPI driver for OMAP24xx/OMAP34xx" - depends on SPI_MASTER && (ARCH_OMAP24XX || ARCH_OMAP34XX) + depends on ARCH_OMAP24XX || ARCH_OMAP34XX help SPI master controller for OMAP24xx/OMAP34xx Multichannel SPI (McSPI) modules. config SPI_PXA2XX tristate "PXA2xx SSP SPI master" - depends on SPI_MASTER && ARCH_PXA && EXPERIMENTAL + depends on ARCH_PXA && EXPERIMENTAL select PXA_SSP help This enables using a PXA2xx SSP port as a SPI master controller. @@ -160,14 +160,14 @@ config SPI_PXA2XX config SPI_S3C24XX tristate "Samsung S3C24XX series SPI" - depends on SPI_MASTER && ARCH_S3C2410 && EXPERIMENTAL + depends on ARCH_S3C2410 && EXPERIMENTAL select SPI_BITBANG help SPI driver for Samsung S3C24XX series ARM SoCs config SPI_S3C24XX_GPIO tristate "Samsung S3C24XX series SPI by GPIO" - depends on SPI_MASTER && ARCH_S3C2410 && EXPERIMENTAL + depends on ARCH_S3C2410 && EXPERIMENTAL select SPI_BITBANG help SPI driver for Samsung S3C24XX series ARM SoCs using @@ -177,20 +177,20 @@ config SPI_S3C24XX_GPIO config SPI_SH_SCI tristate "SuperH SCI SPI controller" - depends on SPI_MASTER && SUPERH + depends on SUPERH select SPI_BITBANG help SPI driver for SuperH SCI blocks. config SPI_TXX9 tristate "Toshiba TXx9 SPI controller" - depends on SPI_MASTER && GENERIC_GPIO && CPU_TX49XX + depends on GENERIC_GPIO && CPU_TX49XX help SPI driver for Toshiba TXx9 MIPS SoCs config SPI_XILINX tristate "Xilinx SPI controller" - depends on SPI_MASTER && XILINX_VIRTEX && EXPERIMENTAL + depends on XILINX_VIRTEX && EXPERIMENTAL select SPI_BITBANG help This exposes the SPI controller IP from the Xilinx EDK. @@ -207,11 +207,10 @@ config SPI_XILINX # being probably the most widely used ones. # comment "SPI Protocol Masters" - depends on SPI_MASTER config SPI_AT25 tristate "SPI EEPROMs from most vendors" - depends on SPI_MASTER && SYSFS + depends on SYSFS help Enable this driver to get read/write support to most SPI EEPROMs, after you configure the board init code to know about each eeprom @@ -222,7 +221,7 @@ config SPI_AT25 config SPI_SPIDEV tristate "User mode SPI device driver support" - depends on SPI_MASTER && EXPERIMENTAL + depends on EXPERIMENTAL help This supports user mode SPI protocol drivers. @@ -231,7 +230,7 @@ config SPI_SPIDEV config SPI_TLE62X0 tristate "Infineon TLE62X0 (for power switching)" - depends on SPI_MASTER && SYSFS + depends on SYSFS help SPI driver for Infineon TLE62X0 series line driver chips, such as the TLE6220, TLE6230 and TLE6240. This provides a @@ -242,6 +241,8 @@ config SPI_TLE62X0 # Add new SPI protocol masters in alphabetical order above this line # +endif # SPI_MASTER + # (slave support would go here) endif # SPI diff --git a/drivers/spi/atmel_spi.c b/drivers/spi/atmel_spi.c index e81d59d..0c71656 100644 --- a/drivers/spi/atmel_spi.c +++ b/drivers/spi/atmel_spi.c @@ -313,14 +313,14 @@ atmel_spi_dma_map_xfer(struct atmel_spi *as, struct spi_transfer *xfer) xfer->tx_dma = dma_map_single(dev, (void *) xfer->tx_buf, xfer->len, DMA_TO_DEVICE); - if (dma_mapping_error(xfer->tx_dma)) + if (dma_mapping_error(dev, xfer->tx_dma)) return -ENOMEM; } if (xfer->rx_buf) { xfer->rx_dma = dma_map_single(dev, xfer->rx_buf, xfer->len, DMA_FROM_DEVICE); - if (dma_mapping_error(xfer->rx_dma)) { + if (dma_mapping_error(dev, xfer->rx_dma)) { if (xfer->tx_buf) dma_unmap_single(dev, xfer->tx_dma, xfer->len, diff --git a/drivers/spi/au1550_spi.c b/drivers/spi/au1550_spi.c index 072c4a5..87b73e0 100644 --- a/drivers/spi/au1550_spi.c +++ b/drivers/spi/au1550_spi.c @@ -26,6 +26,7 @@ #include <linux/errno.h> #include <linux/device.h> #include <linux/platform_device.h> +#include <linux/resource.h> #include <linux/spi/spi.h> #include <linux/spi/spi_bitbang.h> #include <linux/dma-mapping.h> @@ -81,6 +82,7 @@ struct au1550_spi { struct spi_master *master; struct device *dev; struct au1550_spi_info *pdata; + struct resource *ioarea; }; @@ -96,6 +98,8 @@ static dbdev_tab_t au1550_spi_mem_dbdev = .dev_intpolarity = 0 }; +static int ddma_memid; /* id to above mem dma device */ + static void au1550_spi_bits_handlers_set(struct au1550_spi *hw, int bpw); @@ -330,7 +334,7 @@ static int au1550_spi_dma_rxtmp_alloc(struct au1550_spi *hw, unsigned size) hw->dma_rx_tmpbuf_size = size; hw->dma_rx_tmpbuf_addr = dma_map_single(hw->dev, hw->dma_rx_tmpbuf, size, DMA_FROM_DEVICE); - if (dma_mapping_error(hw->dma_rx_tmpbuf_addr)) { + if (dma_mapping_error(hw->dev, hw->dma_rx_tmpbuf_addr)) { kfree(hw->dma_rx_tmpbuf); hw->dma_rx_tmpbuf = 0; hw->dma_rx_tmpbuf_size = 0; @@ -374,7 +378,7 @@ static int au1550_spi_dma_txrxb(struct spi_device *spi, struct spi_transfer *t) dma_rx_addr = dma_map_single(hw->dev, (void *)t->rx_buf, t->len, DMA_FROM_DEVICE); - if (dma_mapping_error(dma_rx_addr)) + if (dma_mapping_error(hw->dev, dma_rx_addr)) dev_err(hw->dev, "rx dma map error\n"); } } else { @@ -397,7 +401,7 @@ static int au1550_spi_dma_txrxb(struct spi_device *spi, struct spi_transfer *t) dma_tx_addr = dma_map_single(hw->dev, (void *)t->tx_buf, t->len, DMA_TO_DEVICE); - if (dma_mapping_error(dma_tx_addr)) + if (dma_mapping_error(hw->dev, dma_tx_addr)) dev_err(hw->dev, "tx dma map error\n"); } } else { @@ -480,9 +484,13 @@ static irqreturn_t au1550_spi_dma_irq_callback(struct au1550_spi *hw) au1xxx_dbdma_reset(hw->dma_tx_ch); au1550_spi_reset_fifos(hw); - dev_err(hw->dev, - "Unexpected SPI error: event=0x%x stat=0x%x!\n", - evnt, stat); + if (evnt == PSC_SPIEVNT_RO) + dev_err(hw->dev, + "dma transfer: receive FIFO overflow!\n"); + else + dev_err(hw->dev, + "dma transfer: unexpected SPI error " + "(event=0x%x stat=0x%x)!\n", evnt, stat); complete(&hw->master_done); return IRQ_HANDLED; @@ -592,17 +600,17 @@ static irqreturn_t au1550_spi_pio_irq_callback(struct au1550_spi *hw) if ((evnt & (PSC_SPIEVNT_MM | PSC_SPIEVNT_RO | PSC_SPIEVNT_RU | PSC_SPIEVNT_TO - | PSC_SPIEVNT_TU | PSC_SPIEVNT_SD)) + | PSC_SPIEVNT_SD)) != 0) { - dev_err(hw->dev, - "Unexpected SPI error: event=0x%x stat=0x%x!\n", - evnt, stat); /* * due to an error we consider transfer as done, * so mask all events until before next transfer start */ au1550_spi_mask_ack_all(hw); au1550_spi_reset_fifos(hw); + dev_err(hw->dev, + "pio transfer: unexpected SPI error " + "(event=0x%x stat=0x%x)!\n", evnt, stat); complete(&hw->master_done); return IRQ_HANDLED; } @@ -616,27 +624,50 @@ static irqreturn_t au1550_spi_pio_irq_callback(struct au1550_spi *hw) stat = hw->regs->psc_spistat; au_sync(); - if ((stat & PSC_SPISTAT_RE) == 0 && hw->rx_count < hw->len) { + /* + * Take care to not let the Rx FIFO overflow. + * + * We only write a byte if we have read one at least. Initially, + * the write fifo is full, so we should read from the read fifo + * first. + * In case we miss a word from the read fifo, we should get a + * RO event and should back out. + */ + if (!(stat & PSC_SPISTAT_RE) && hw->rx_count < hw->len) { hw->rx_word(hw); - /* ack the receive request event */ - hw->regs->psc_spievent = PSC_SPIEVNT_RR; - au_sync(); busy = 1; - } - if ((stat & PSC_SPISTAT_TF) == 0 && hw->tx_count < hw->len) { - hw->tx_word(hw); - /* ack the transmit request event */ - hw->regs->psc_spievent = PSC_SPIEVNT_TR; - au_sync(); - busy = 1; + if (!(stat & PSC_SPISTAT_TF) && hw->tx_count < hw->len) + hw->tx_word(hw); } } while (busy); - evnt = hw->regs->psc_spievent; + hw->regs->psc_spievent = PSC_SPIEVNT_RR | PSC_SPIEVNT_TR; au_sync(); - if (hw->rx_count >= hw->len || (evnt & PSC_SPIEVNT_MD) != 0) { + /* + * Restart the SPI transmission in case of a transmit underflow. + * This seems to work despite the notes in the Au1550 data book + * of Figure 8-4 with flowchart for SPI master operation: + * + * """Note 1: An XFR Error Interrupt occurs, unless masked, + * for any of the following events: Tx FIFO Underflow, + * Rx FIFO Overflow, or Multiple-master Error + * Note 2: In case of a Tx Underflow Error, all zeroes are + * transmitted.""" + * + * By simply restarting the spi transfer on Tx Underflow Error, + * we assume that spi transfer was paused instead of zeroes + * transmittion mentioned in the Note 2 of Au1550 data book. + */ + if (evnt & PSC_SPIEVNT_TU) { + hw->regs->psc_spievent = PSC_SPIEVNT_TU | PSC_SPIEVNT_MD; + au_sync(); + hw->regs->psc_spipcr = PSC_SPIPCR_MS; + au_sync(); + } + + if (hw->rx_count >= hw->len) { /* transfer completed successfully */ au1550_spi_mask_ack_all(hw); complete(&hw->master_done); @@ -725,6 +756,8 @@ static void __init au1550_spi_setup_psc_as_spi(struct au1550_spi *hw) stat = hw->regs->psc_spistat; au_sync(); } while ((stat & PSC_SPISTAT_DR) == 0); + + au1550_spi_reset_fifos(hw); } @@ -732,6 +765,7 @@ static int __init au1550_spi_probe(struct platform_device *pdev) { struct au1550_spi *hw; struct spi_master *master; + struct resource *r; int err = 0; master = spi_alloc_master(&pdev->dev, sizeof(struct au1550_spi)); @@ -753,76 +787,64 @@ static int __init au1550_spi_probe(struct platform_device *pdev) goto err_no_pdata; } - platform_set_drvdata(pdev, hw); - - init_completion(&hw->master_done); - - hw->bitbang.master = hw->master; - hw->bitbang.setup_transfer = au1550_spi_setupxfer; - hw->bitbang.chipselect = au1550_spi_chipsel; - hw->bitbang.master->setup = au1550_spi_setup; - hw->bitbang.txrx_bufs = au1550_spi_txrx_bufs; + r = platform_get_resource(pdev, IORESOURCE_IRQ, 0); + if (!r) { + dev_err(&pdev->dev, "no IRQ\n"); + err = -ENODEV; + goto err_no_iores; + } + hw->irq = r->start; + + hw->usedma = 0; + r = platform_get_resource(pdev, IORESOURCE_DMA, 0); + if (r) { + hw->dma_tx_id = r->start; + r = platform_get_resource(pdev, IORESOURCE_DMA, 1); + if (r) { + hw->dma_rx_id = r->start; + if (usedma && ddma_memid) { + if (pdev->dev.dma_mask == NULL) + dev_warn(&pdev->dev, "no dma mask\n"); + else + hw->usedma = 1; + } + } + } - switch (hw->pdata->bus_num) { - case 0: - hw->irq = AU1550_PSC0_INT; - hw->regs = (volatile psc_spi_t *)PSC0_BASE_ADDR; - hw->dma_rx_id = DSCR_CMD0_PSC0_RX; - hw->dma_tx_id = DSCR_CMD0_PSC0_TX; - break; - case 1: - hw->irq = AU1550_PSC1_INT; - hw->regs = (volatile psc_spi_t *)PSC1_BASE_ADDR; - hw->dma_rx_id = DSCR_CMD0_PSC1_RX; - hw->dma_tx_id = DSCR_CMD0_PSC1_TX; - break; - case 2: - hw->irq = AU1550_PSC2_INT; - hw->regs = (volatile psc_spi_t *)PSC2_BASE_ADDR; - hw->dma_rx_id = DSCR_CMD0_PSC2_RX; - hw->dma_tx_id = DSCR_CMD0_PSC2_TX; - break; - case 3: - hw->irq = AU1550_PSC3_INT; - hw->regs = (volatile psc_spi_t *)PSC3_BASE_ADDR; - hw->dma_rx_id = DSCR_CMD0_PSC3_RX; - hw->dma_tx_id = DSCR_CMD0_PSC3_TX; - break; - default: - dev_err(&pdev->dev, "Wrong bus_num of SPI\n"); - err = -ENOENT; - goto err_no_pdata; + r = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!r) { + dev_err(&pdev->dev, "no mmio resource\n"); + err = -ENODEV; + goto err_no_iores; } - if (request_mem_region((unsigned long)hw->regs, sizeof(psc_spi_t), - pdev->name) == NULL) { + hw->ioarea = request_mem_region(r->start, sizeof(psc_spi_t), + pdev->name); + if (!hw->ioarea) { dev_err(&pdev->dev, "Cannot reserve iomem region\n"); err = -ENXIO; goto err_no_iores; } - - if (usedma) { - if (pdev->dev.dma_mask == NULL) - dev_warn(&pdev->dev, "no dma mask\n"); - else - hw->usedma = 1; + hw->regs = (psc_spi_t __iomem *)ioremap(r->start, sizeof(psc_spi_t)); + if (!hw->regs) { + dev_err(&pdev->dev, "cannot ioremap\n"); + err = -ENXIO; + goto err_ioremap; } - if (hw->usedma) { - /* - * create memory device with 8 bits dev_devwidth - * needed for proper byte ordering to spi fifo - */ - int memid = au1xxx_ddma_add_device(&au1550_spi_mem_dbdev); - if (!memid) { - dev_err(&pdev->dev, - "Cannot create dma 8 bit mem device\n"); - err = -ENXIO; - goto err_dma_add_dev; - } + platform_set_drvdata(pdev, hw); + + init_completion(&hw->master_done); + + hw->bitbang.master = hw->master; + hw->bitbang.setup_transfer = au1550_spi_setupxfer; + hw->bitbang.chipselect = au1550_spi_chipsel; + hw->bitbang.master->setup = au1550_spi_setup; + hw->bitbang.txrx_bufs = au1550_spi_txrx_bufs; - hw->dma_tx_ch = au1xxx_dbdma_chan_alloc(memid, + if (hw->usedma) { + hw->dma_tx_ch = au1xxx_dbdma_chan_alloc(ddma_memid, hw->dma_tx_id, NULL, (void *)hw); if (hw->dma_tx_ch == 0) { dev_err(&pdev->dev, @@ -841,7 +863,7 @@ static int __init au1550_spi_probe(struct platform_device *pdev) hw->dma_rx_ch = au1xxx_dbdma_chan_alloc(hw->dma_rx_id, - memid, NULL, (void *)hw); + ddma_memid, NULL, (void *)hw); if (hw->dma_rx_ch == 0) { dev_err(&pdev->dev, "Cannot allocate rx dma channel\n"); @@ -874,7 +896,7 @@ static int __init au1550_spi_probe(struct platform_device *pdev) goto err_no_irq; } - master->bus_num = hw->pdata->bus_num; + master->bus_num = pdev->id; master->num_chipselect = hw->pdata->num_chipselect; /* @@ -924,8 +946,11 @@ err_no_txdma_descr: au1xxx_dbdma_chan_free(hw->dma_tx_ch); err_no_txdma: -err_dma_add_dev: - release_mem_region((unsigned long)hw->regs, sizeof(psc_spi_t)); + iounmap((void __iomem *)hw->regs); + +err_ioremap: + release_resource(hw->ioarea); + kfree(hw->ioarea); err_no_iores: err_no_pdata: @@ -944,7 +969,9 @@ static int __exit au1550_spi_remove(struct platform_device *pdev) spi_bitbang_stop(&hw->bitbang); free_irq(hw->irq, hw); - release_mem_region((unsigned long)hw->regs, sizeof(psc_spi_t)); + iounmap((void __iomem *)hw->regs); + release_resource(hw->ioarea); + kfree(hw->ioarea); if (hw->usedma) { au1550_spi_dma_rxtmp_free(hw); @@ -971,12 +998,24 @@ static struct platform_driver au1550_spi_drv = { static int __init au1550_spi_init(void) { + /* + * create memory device with 8 bits dev_devwidth + * needed for proper byte ordering to spi fifo + */ + if (usedma) { + ddma_memid = au1xxx_ddma_add_device(&au1550_spi_mem_dbdev); + if (!ddma_memid) + printk(KERN_ERR "au1550-spi: cannot add memory" + "dbdma device\n"); + } return platform_driver_probe(&au1550_spi_drv, au1550_spi_probe); } module_init(au1550_spi_init); static void __exit au1550_spi_exit(void) { + if (usedma && ddma_memid) + au1xxx_ddma_del_device(ddma_memid); platform_driver_unregister(&au1550_spi_drv); } module_exit(au1550_spi_exit); diff --git a/drivers/spi/omap2_mcspi.c b/drivers/spi/omap2_mcspi.c index b1cc148..f6f987b 100644 --- a/drivers/spi/omap2_mcspi.c +++ b/drivers/spi/omap2_mcspi.c @@ -836,7 +836,7 @@ static int omap2_mcspi_transfer(struct spi_device *spi, struct spi_message *m) if (tx_buf != NULL) { t->tx_dma = dma_map_single(&spi->dev, (void *) tx_buf, len, DMA_TO_DEVICE); - if (dma_mapping_error(t->tx_dma)) { + if (dma_mapping_error(&spi->dev, t->tx_dma)) { dev_dbg(&spi->dev, "dma %cX %d bytes error\n", 'T', len); return -EINVAL; @@ -845,7 +845,7 @@ static int omap2_mcspi_transfer(struct spi_device *spi, struct spi_message *m) if (rx_buf != NULL) { t->rx_dma = dma_map_single(&spi->dev, rx_buf, t->len, DMA_FROM_DEVICE); - if (dma_mapping_error(t->rx_dma)) { + if (dma_mapping_error(&spi->dev, t->rx_dma)) { dev_dbg(&spi->dev, "dma %cX %d bytes error\n", 'R', len); if (tx_buf != NULL) diff --git a/drivers/spi/pxa2xx_spi.c b/drivers/spi/pxa2xx_spi.c index 0c452c4..067299d 100644 --- a/drivers/spi/pxa2xx_spi.c +++ b/drivers/spi/pxa2xx_spi.c @@ -353,7 +353,7 @@ static int map_dma_buffers(struct driver_data *drv_data) drv_data->rx_dma = dma_map_single(dev, drv_data->rx, drv_data->rx_map_len, DMA_FROM_DEVICE); - if (dma_mapping_error(drv_data->rx_dma)) + if (dma_mapping_error(dev, drv_data->rx_dma)) return 0; /* Stream map the tx buffer */ @@ -361,7 +361,7 @@ static int map_dma_buffers(struct driver_data *drv_data) drv_data->tx_map_len, DMA_TO_DEVICE); - if (dma_mapping_error(drv_data->tx_dma)) { + if (dma_mapping_error(dev, drv_data->tx_dma)) { dma_unmap_single(dev, drv_data->rx_dma, drv_data->rx_map_len, DMA_FROM_DEVICE); return 0; diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 1771b24..ecca4a6 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -218,6 +218,8 @@ struct spi_device *spi_new_device(struct spi_master *master, if (!spi_master_get(master)) return NULL; + WARN_ON(strlen(chip->modalias) >= sizeof(proxy->modalias)); + proxy = kzalloc(sizeof *proxy, GFP_KERNEL); if (!proxy) { dev_err(dev, "can't alloc dev for cs%d\n", @@ -229,7 +231,7 @@ struct spi_device *spi_new_device(struct spi_master *master, proxy->max_speed_hz = chip->max_speed_hz; proxy->mode = chip->mode; proxy->irq = chip->irq; - proxy->modalias = chip->modalias; + strlcpy(proxy->modalias, chip->modalias, sizeof(proxy->modalias)); snprintf(proxy->dev.bus_id, sizeof proxy->dev.bus_id, "%s.%u", master->dev.bus_id, diff --git a/drivers/spi/spi_imx.c b/drivers/spi/spi_imx.c index 54ac7be..6fb77fc 100644 --- a/drivers/spi/spi_imx.c +++ b/drivers/spi/spi_imx.c @@ -491,7 +491,7 @@ static int map_dma_buffers(struct driver_data *drv_data) buf, drv_data->tx_map_len, DMA_TO_DEVICE); - if (dma_mapping_error(drv_data->tx_dma)) + if (dma_mapping_error(dev, drv_data->tx_dma)) return -1; drv_data->tx_dma_needs_unmap = 1; @@ -516,7 +516,7 @@ static int map_dma_buffers(struct driver_data *drv_data) buf, drv_data->len, DMA_FROM_DEVICE); - if (dma_mapping_error(drv_data->rx_dma)) + if (dma_mapping_error(dev, drv_data->rx_dma)) return -1; drv_data->rx_dma_needs_unmap = 1; } @@ -534,7 +534,7 @@ static int map_dma_buffers(struct driver_data *drv_data) buf, drv_data->tx_map_len, DMA_TO_DEVICE); - if (dma_mapping_error(drv_data->tx_dma)) { + if (dma_mapping_error(dev, drv_data->tx_dma)) { if (drv_data->rx_dma) { dma_unmap_single(dev, drv_data->rx_dma, diff --git a/drivers/spi/spi_mpc83xx.c b/drivers/spi/spi_mpc83xx.c index 6832da6..070c621 100644 --- a/drivers/spi/spi_mpc83xx.c +++ b/drivers/spi/spi_mpc83xx.c @@ -266,21 +266,24 @@ int mpc83xx_spi_setup_transfer(struct spi_device *spi, struct spi_transfer *t) cs->hw_mode |= SPMODE_LEN(bits_per_word); - if ((mpc83xx_spi->spibrg / hz) >= 64) { - pm = mpc83xx_spi->spibrg / (hz * 64) - 1; - if (pm > 0x0f) { - dev_err(&spi->dev, "Requested speed is too " - "low: %d Hz. Will use %d Hz instead.\n", - hz, mpc83xx_spi->spibrg / 1024); - pm = 0x0f; + if ((mpc83xx_spi->spibrg / hz) > 64) { + pm = mpc83xx_spi->spibrg / (hz * 64); + if (pm > 16) { + cs->hw_mode |= SPMODE_DIV16; + pm /= 16; + if (pm > 16) { + dev_err(&spi->dev, "Requested speed is too " + "low: %d Hz. Will use %d Hz instead.\n", + hz, mpc83xx_spi->spibrg / 1024); + pm = 16; + } } - cs->hw_mode |= SPMODE_PM(pm) | SPMODE_DIV16; - } else { + } else pm = mpc83xx_spi->spibrg / (hz * 4); - if (pm) - pm--; - cs->hw_mode |= SPMODE_PM(pm); - } + if (pm) + pm--; + + cs->hw_mode |= SPMODE_PM(pm); regval = mpc83xx_spi_read_reg(&mpc83xx_spi->base->mode); if (cs->hw_mode != regval) { unsigned long flags; diff --git a/drivers/spi/spidev.c b/drivers/spi/spidev.c index 2833fd7..e5e0cfe 100644 --- a/drivers/spi/spidev.c +++ b/drivers/spi/spidev.c @@ -228,7 +228,6 @@ static int spidev_message(struct spidev_data *spidev, * We walk the array of user-provided transfers, using each one * to initialize a kernel version of the same transfer. */ - mutex_lock(&spidev->buf_lock); buf = spidev->buffer; total = 0; for (n = n_xfers, k_tmp = k_xfers, u_tmp = u_xfers; @@ -296,14 +295,12 @@ static int spidev_message(struct spidev_data *spidev, status = total; done: - mutex_unlock(&spidev->buf_lock); kfree(k_xfers); return status; } -static int -spidev_ioctl(struct inode *inode, struct file *filp, - unsigned int cmd, unsigned long arg) +static long +spidev_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) { int err = 0; int retval = 0; @@ -341,6 +338,14 @@ spidev_ioctl(struct inode *inode, struct file *filp, if (spi == NULL) return -ESHUTDOWN; + /* use the buffer lock here for triple duty: + * - prevent I/O (from us) so calling spi_setup() is safe; + * - prevent concurrent SPI_IOC_WR_* from morphing + * data fields while SPI_IOC_RD_* reads them; + * - SPI_IOC_MESSAGE needs the buffer locked "normally". + */ + mutex_lock(&spidev->buf_lock); + switch (cmd) { /* read requests */ case SPI_IOC_RD_MODE: @@ -456,6 +461,8 @@ spidev_ioctl(struct inode *inode, struct file *filp, kfree(ioc); break; } + + mutex_unlock(&spidev->buf_lock); spi_dev_put(spi); return retval; } @@ -533,7 +540,7 @@ static struct file_operations spidev_fops = { */ .write = spidev_write, .read = spidev_read, - .ioctl = spidev_ioctl, + .unlocked_ioctl = spidev_ioctl, .open = spidev_open, .release = spidev_release, }; diff --git a/drivers/spi/xilinx_spi.c b/drivers/spi/xilinx_spi.c index 113a046..68d6f49 100644 --- a/drivers/spi/xilinx_spi.c +++ b/drivers/spi/xilinx_spi.c @@ -353,11 +353,12 @@ static int __init xilinx_spi_probe(struct platform_device *dev) goto put_master; } - xspi->irq = platform_get_irq(dev, 0); - if (xspi->irq < 0) { + ret = platform_get_irq(dev, 0); + if (ret < 0) { ret = -ENXIO; goto unmap_io; } + xspi->irq = ret; master->bus_num = pdata->bus_num; master->num_chipselect = pdata->num_chipselect; diff --git a/drivers/telephony/ixj.c b/drivers/telephony/ixj.c index 49cd979..ec7aeb5 100644 --- a/drivers/telephony/ixj.c +++ b/drivers/telephony/ixj.c @@ -6095,15 +6095,15 @@ static int capabilities_check(IXJ *j, struct phone_capability *pcreq) return retval; } -static int ixj_ioctl(struct inode *inode, struct file *file_p, unsigned int cmd, unsigned long arg) +static long do_ixj_ioctl(struct file *file_p, unsigned int cmd, unsigned long arg) { IXJ_TONE ti; IXJ_FILTER jf; IXJ_FILTER_RAW jfr; void __user *argp = (void __user *)arg; - - unsigned int raise, mant; + struct inode *inode = file_p->f_path.dentry->d_inode; unsigned int minor = iminor(inode); + unsigned int raise, mant; int board = NUM(inode); IXJ *j = get_ixj(NUM(inode)); @@ -6661,6 +6661,15 @@ static int ixj_ioctl(struct inode *inode, struct file *file_p, unsigned int cmd, return retval; } +static long ixj_ioctl(struct file *file_p, unsigned int cmd, unsigned long arg) +{ + long ret; + lock_kernel(); + ret = do_ixj_ioctl(file_p, cmd, arg); + unlock_kernel(); + return ret; +} + static int ixj_fasync(int fd, struct file *file_p, int mode) { IXJ *j = get_ixj(NUM(file_p->f_path.dentry->d_inode)); @@ -6674,7 +6683,7 @@ static const struct file_operations ixj_fops = .read = ixj_enhanced_read, .write = ixj_enhanced_write, .poll = ixj_poll, - .ioctl = ixj_ioctl, + .unlocked_ioctl = ixj_ioctl, .release = ixj_release, .fasync = ixj_fasync }; diff --git a/drivers/usb/gadget/at91_udc.h b/drivers/usb/gadget/at91_udc.h index a973f2a..c65d622 100644 --- a/drivers/usb/gadget/at91_udc.h +++ b/drivers/usb/gadget/at91_udc.h @@ -171,7 +171,7 @@ struct at91_request { #endif #define ERR(stuff...) pr_err("udc: " stuff) -#define WARN(stuff...) pr_warning("udc: " stuff) +#define WARNING(stuff...) pr_warning("udc: " stuff) #define INFO(stuff...) pr_info("udc: " stuff) #define DBG(stuff...) pr_debug("udc: " stuff) diff --git a/drivers/usb/gadget/cdc2.c b/drivers/usb/gadget/cdc2.c index d490d02..a39a4b9 100644 --- a/drivers/usb/gadget/cdc2.c +++ b/drivers/usb/gadget/cdc2.c @@ -170,7 +170,7 @@ static int __init cdc_bind(struct usb_composite_dev *cdev) * but if the controller isn't recognized at all then * that assumption is a bit more likely to be wrong. */ - WARN(cdev, "controller '%s' not recognized; trying %s\n", + WARNING(cdev, "controller '%s' not recognized; trying %s\n", gadget->name, cdc_config_driver.label); device_desc.bcdDevice = diff --git a/drivers/usb/gadget/ether.c b/drivers/usb/gadget/ether.c index d7aaaa2..bcac2e6 100644 --- a/drivers/usb/gadget/ether.c +++ b/drivers/usb/gadget/ether.c @@ -293,7 +293,7 @@ static int __init eth_bind(struct usb_composite_dev *cdev) * but if the controller isn't recognized at all then * that assumption is a bit more likely to be wrong. */ - WARN(cdev, "controller '%s' not recognized; trying %s\n", + WARNING(cdev, "controller '%s' not recognized; trying %s\n", gadget->name, eth_config_driver.label); device_desc.bcdDevice = diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c index 15c24ed..ea2c31d 100644 --- a/drivers/usb/gadget/file_storage.c +++ b/drivers/usb/gadget/file_storage.c @@ -308,7 +308,7 @@ MODULE_LICENSE("Dual BSD/GPL"); dev_vdbg(&(d)->gadget->dev , fmt , ## args) #define ERROR(d, fmt, args...) \ dev_err(&(d)->gadget->dev , fmt , ## args) -#define WARN(d, fmt, args...) \ +#define WARNING(d, fmt, args...) \ dev_warn(&(d)->gadget->dev , fmt , ## args) #define INFO(d, fmt, args...) \ dev_info(&(d)->gadget->dev , fmt , ## args) @@ -1091,7 +1091,7 @@ static int ep0_queue(struct fsg_dev *fsg) if (rc != 0 && rc != -ESHUTDOWN) { /* We can't do much more than wait for a reset */ - WARN(fsg, "error in submission: %s --> %d\n", + WARNING(fsg, "error in submission: %s --> %d\n", fsg->ep0->name, rc); } return rc; @@ -1227,7 +1227,7 @@ static void received_cbi_adsc(struct fsg_dev *fsg, struct fsg_buffhd *bh) /* Save the command for later */ if (fsg->cbbuf_cmnd_size) - WARN(fsg, "CB[I] overwriting previous command\n"); + WARNING(fsg, "CB[I] overwriting previous command\n"); fsg->cbbuf_cmnd_size = req->actual; memcpy(fsg->cbbuf_cmnd, req->buf, fsg->cbbuf_cmnd_size); @@ -1506,7 +1506,7 @@ static void start_transfer(struct fsg_dev *fsg, struct usb_ep *ep, * submissions if DMA is enabled. */ if (rc != -ESHUTDOWN && !(rc == -EOPNOTSUPP && req->length == 0)) - WARN(fsg, "error in submission: %s --> %d\n", + WARNING(fsg, "error in submission: %s --> %d\n", ep->name, rc); } } @@ -2294,7 +2294,7 @@ static int halt_bulk_in_endpoint(struct fsg_dev *fsg) VDBG(fsg, "delayed bulk-in endpoint halt\n"); while (rc != 0) { if (rc != -EAGAIN) { - WARN(fsg, "usb_ep_set_halt -> %d\n", rc); + WARNING(fsg, "usb_ep_set_halt -> %d\n", rc); rc = 0; break; } @@ -2317,7 +2317,7 @@ static int wedge_bulk_in_endpoint(struct fsg_dev *fsg) VDBG(fsg, "delayed bulk-in endpoint wedge\n"); while (rc != 0) { if (rc != -EAGAIN) { - WARN(fsg, "usb_ep_set_wedge -> %d\n", rc); + WARNING(fsg, "usb_ep_set_wedge -> %d\n", rc); rc = 0; break; } @@ -3755,7 +3755,7 @@ static int __init check_parameters(struct fsg_dev *fsg) if (gcnum >= 0) mod_data.release = 0x0300 + gcnum; else { - WARN(fsg, "controller '%s' not recognized\n", + WARNING(fsg, "controller '%s' not recognized\n", fsg->gadget->name); mod_data.release = 0x0399; } diff --git a/drivers/usb/gadget/fsl_usb2_udc.c b/drivers/usb/gadget/fsl_usb2_udc.c index 1695382..1cfccf1 100644 --- a/drivers/usb/gadget/fsl_usb2_udc.c +++ b/drivers/usb/gadget/fsl_usb2_udc.c @@ -1538,7 +1538,7 @@ static void dtd_complete_irq(struct fsl_udc *udc) /* If the ep is configured */ if (curr_ep->name == NULL) { - WARN("Invalid EP?"); + WARNING("Invalid EP?"); continue; } diff --git a/drivers/usb/gadget/fsl_usb2_udc.h b/drivers/usb/gadget/fsl_usb2_udc.h index 98b1483..6131752 100644 --- a/drivers/usb/gadget/fsl_usb2_udc.h +++ b/drivers/usb/gadget/fsl_usb2_udc.h @@ -552,7 +552,7 @@ static void dump_msg(const char *label, const u8 * buf, unsigned int length) #endif #define ERR(stuff...) pr_err("udc: " stuff) -#define WARN(stuff...) pr_warning("udc: " stuff) +#define WARNING(stuff...) pr_warning("udc: " stuff) #define INFO(stuff...) pr_info("udc: " stuff) /*-------------------------------------------------------------------------*/ diff --git a/drivers/usb/gadget/gmidi.c b/drivers/usb/gadget/gmidi.c index 7f4d482..ea8651e 100644 --- a/drivers/usb/gadget/gmidi.c +++ b/drivers/usb/gadget/gmidi.c @@ -138,8 +138,6 @@ static void gmidi_transmit(struct gmidi_device* dev, struct usb_request* req); dev_vdbg(&(d)->gadget->dev , fmt , ## args) #define ERROR(d, fmt, args...) \ dev_err(&(d)->gadget->dev , fmt , ## args) -#define WARN(d, fmt, args...) \ - dev_warn(&(d)->gadget->dev , fmt , ## args) #define INFO(d, fmt, args...) \ dev_info(&(d)->gadget->dev , fmt , ## args) diff --git a/drivers/usb/gadget/goku_udc.c b/drivers/usb/gadget/goku_udc.c index 48f1c63..60aa048 100644 --- a/drivers/usb/gadget/goku_udc.c +++ b/drivers/usb/gadget/goku_udc.c @@ -1768,7 +1768,7 @@ static int goku_probe(struct pci_dev *pdev, const struct pci_device_id *id) * usb_gadget_driver_{register,unregister}() must change. */ if (the_controller) { - WARN(dev, "ignoring %s\n", pci_name(pdev)); + WARNING(dev, "ignoring %s\n", pci_name(pdev)); return -EBUSY; } if (!pdev->irq) { diff --git a/drivers/usb/gadget/goku_udc.h b/drivers/usb/gadget/goku_udc.h index bc4eb1e..566cb23 100644 --- a/drivers/usb/gadget/goku_udc.h +++ b/drivers/usb/gadget/goku_udc.h @@ -285,7 +285,7 @@ struct goku_udc { #define ERROR(dev,fmt,args...) \ xprintk(dev , KERN_ERR , fmt , ## args) -#define WARN(dev,fmt,args...) \ +#define WARNING(dev,fmt,args...) \ xprintk(dev , KERN_WARNING , fmt , ## args) #define INFO(dev,fmt,args...) \ xprintk(dev , KERN_INFO , fmt , ## args) diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c index 04692d5..f4585d3e 100644 --- a/drivers/usb/gadget/inode.c +++ b/drivers/usb/gadget/inode.c @@ -262,8 +262,6 @@ static const char *CHIP; #define ERROR(dev,fmt,args...) \ xprintk(dev , KERN_ERR , fmt , ## args) -#define WARN(dev,fmt,args...) \ - xprintk(dev , KERN_WARNING , fmt , ## args) #define INFO(dev,fmt,args...) \ xprintk(dev , KERN_INFO , fmt , ## args) diff --git a/drivers/usb/gadget/net2280.c b/drivers/usb/gadget/net2280.c index b67ab67..5cfb5eb 100644 --- a/drivers/usb/gadget/net2280.c +++ b/drivers/usb/gadget/net2280.c @@ -1007,7 +1007,7 @@ static void scan_dma_completions (struct net2280_ep *ep) * 0122, and 0124; not all cases trigger the warning. */ if ((tmp & (1 << NAK_OUT_PACKETS)) == 0) { - WARN (ep->dev, "%s lost packet sync!\n", + WARNING (ep->dev, "%s lost packet sync!\n", ep->ep.name); req->req.status = -EOVERFLOW; } else if ((tmp = readl (&ep->regs->ep_avail)) != 0) { diff --git a/drivers/usb/gadget/net2280.h b/drivers/usb/gadget/net2280.h index 1f2af39..81a71db 100644 --- a/drivers/usb/gadget/net2280.h +++ b/drivers/usb/gadget/net2280.h @@ -272,7 +272,7 @@ static inline void net2280_led_shutdown (struct net2280 *dev) #define ERROR(dev,fmt,args...) \ xprintk(dev , KERN_ERR , fmt , ## args) -#define WARN(dev,fmt,args...) \ +#define WARNING(dev,fmt,args...) \ xprintk(dev , KERN_WARNING , fmt , ## args) #define INFO(dev,fmt,args...) \ xprintk(dev , KERN_INFO , fmt , ## args) diff --git a/drivers/usb/gadget/omap_udc.c b/drivers/usb/gadget/omap_udc.c index 4b79a85..395bd18 100644 --- a/drivers/usb/gadget/omap_udc.c +++ b/drivers/usb/gadget/omap_udc.c @@ -1120,7 +1120,7 @@ static int omap_ep_set_halt(struct usb_ep *_ep, int value) status = -EINVAL; else if (value) { if (ep->udc->ep0_set_config) { - WARN("error changing config?\n"); + WARNING("error changing config?\n"); omap_writew(UDC_CLR_CFG, UDC_SYSCON2); } omap_writew(UDC_STALL_CMD, UDC_SYSCON2); @@ -1764,7 +1764,7 @@ do_stall: u.r.bRequestType, u.r.bRequest, status); if (udc->ep0_set_config) { if (udc->ep0_reset_config) - WARN("error resetting config?\n"); + WARNING("error resetting config?\n"); else omap_writew(UDC_CLR_CFG, UDC_SYSCON2); } @@ -3076,7 +3076,7 @@ static int omap_udc_suspend(struct platform_device *dev, pm_message_t message) * which would prevent entry to deep sleep... */ if ((devstat & UDC_ATT) != 0 && (devstat & UDC_SUS) == 0) { - WARN("session active; suspend requires disconnect\n"); + WARNING("session active; suspend requires disconnect\n"); omap_pullup(&udc->gadget, 0); } diff --git a/drivers/usb/gadget/omap_udc.h b/drivers/usb/gadget/omap_udc.h index 8522bbb..29edc51 100644 --- a/drivers/usb/gadget/omap_udc.h +++ b/drivers/usb/gadget/omap_udc.h @@ -188,7 +188,7 @@ struct omap_udc { #endif #define ERR(stuff...) pr_err("udc: " stuff) -#define WARN(stuff...) pr_warning("udc: " stuff) +#define WARNING(stuff...) pr_warning("udc: " stuff) #define INFO(stuff...) pr_info("udc: " stuff) #define DBG(stuff...) pr_debug("udc: " stuff) diff --git a/drivers/usb/gadget/printer.c b/drivers/usb/gadget/printer.c index 49cd9e1..e009008 100644 --- a/drivers/usb/gadget/printer.c +++ b/drivers/usb/gadget/printer.c @@ -179,7 +179,7 @@ module_param(qlen, uint, S_IRUGO|S_IWUSR); #define ERROR(dev, fmt, args...) \ xprintk(dev, KERN_ERR, fmt, ## args) -#define WARN(dev, fmt, args...) \ +#define WARNING(dev, fmt, args...) \ xprintk(dev, KERN_WARNING, fmt, ## args) #define INFO(dev, fmt, args...) \ xprintk(dev, KERN_INFO, fmt, ## args) diff --git a/drivers/usb/gadget/pxa25x_udc.c b/drivers/usb/gadget/pxa25x_udc.c index 8fb0066..7e6725d 100644 --- a/drivers/usb/gadget/pxa25x_udc.c +++ b/drivers/usb/gadget/pxa25x_udc.c @@ -342,7 +342,7 @@ pxa25x_ep_free_request (struct usb_ep *_ep, struct usb_request *_req) struct pxa25x_request *req; req = container_of (_req, struct pxa25x_request, req); - WARN_ON (!list_empty (&req->queue)); + WARN_ON(!list_empty (&req->queue)); kfree(req); } @@ -1556,7 +1556,7 @@ config_change: * tell us about config change events, * so later ones may fail... */ - WARN("config change %02x fail %d?\n", + WARNING("config change %02x fail %d?\n", u.r.bRequest, i); return; /* TODO experiment: if has_cfr, @@ -2330,7 +2330,7 @@ static int pxa25x_udc_suspend(struct platform_device *dev, pm_message_t state) unsigned long flags; if (!udc->mach->gpio_pullup && !udc->mach->udc_command) - WARN("USB host won't detect disconnect!\n"); + WARNING("USB host won't detect disconnect!\n"); udc->suspended = 1; local_irq_save(flags); diff --git a/drivers/usb/gadget/pxa25x_udc.h b/drivers/usb/gadget/pxa25x_udc.h index 4d11ece..c8a1321 100644 --- a/drivers/usb/gadget/pxa25x_udc.h +++ b/drivers/usb/gadget/pxa25x_udc.h @@ -259,7 +259,7 @@ dump_state(struct pxa25x_udc *dev) #define DBG(lvl, stuff...) do{if ((lvl) <= UDC_DEBUG) DMSG(stuff);}while(0) #define ERR(stuff...) pr_err("udc: " stuff) -#define WARN(stuff...) pr_warning("udc: " stuff) +#define WARNING(stuff...) pr_warning("udc: " stuff) #define INFO(stuff...) pr_info("udc: " stuff) diff --git a/drivers/usb/gadget/u_ether.c b/drivers/usb/gadget/u_ether.c index 5458f43..3791e62 100644 --- a/drivers/usb/gadget/u_ether.c +++ b/drivers/usb/gadget/u_ether.c @@ -116,7 +116,6 @@ static inline int qlen(struct usb_gadget *gadget) #undef DBG #undef VDBG #undef ERROR -#undef WARN #undef INFO #define xprintk(d, level, fmt, args...) \ @@ -140,8 +139,6 @@ static inline int qlen(struct usb_gadget *gadget) #define ERROR(dev, fmt, args...) \ xprintk(dev , KERN_ERR , fmt , ## args) -#define WARN(dev, fmt, args...) \ - xprintk(dev , KERN_WARNING , fmt , ## args) #define INFO(dev, fmt, args...) \ xprintk(dev , KERN_INFO , fmt , ## args) diff --git a/drivers/usb/host/isp116x-hcd.c b/drivers/usb/host/isp116x-hcd.c index 31178e1..ce1ca0b 100644 --- a/drivers/usb/host/isp116x-hcd.c +++ b/drivers/usb/host/isp116x-hcd.c @@ -882,7 +882,7 @@ static void isp116x_endpoint_disable(struct usb_hcd *hcd, for (i = 0; i < 100 && !list_empty(&hep->urb_list); i++) msleep(3); if (!list_empty(&hep->urb_list)) - WARN("ep %p not empty?\n", ep); + WARNING("ep %p not empty?\n", ep); kfree(ep); hep->hcpriv = NULL; diff --git a/drivers/usb/host/isp116x.h b/drivers/usb/host/isp116x.h index 595b90a99..aa211ba 100644 --- a/drivers/usb/host/isp116x.h +++ b/drivers/usb/host/isp116x.h @@ -338,7 +338,7 @@ struct isp116x_ep { #endif #define ERR(stuff...) printk(KERN_ERR "116x: " stuff) -#define WARN(stuff...) printk(KERN_WARNING "116x: " stuff) +#define WARNING(stuff...) printk(KERN_WARNING "116x: " stuff) #define INFO(stuff...) printk(KERN_INFO "116x: " stuff) /* ------------------------------------------------- */ diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c index 340d72d..8a74bbb 100644 --- a/drivers/usb/host/sl811-hcd.c +++ b/drivers/usb/host/sl811-hcd.c @@ -1026,7 +1026,7 @@ sl811h_endpoint_disable(struct usb_hcd *hcd, struct usb_host_endpoint *hep) if (!list_empty(&hep->urb_list)) msleep(3); if (!list_empty(&hep->urb_list)) - WARN("ep %p not empty?\n", ep); + WARNING("ep %p not empty?\n", ep); kfree(ep); hep->hcpriv = NULL; diff --git a/drivers/usb/host/sl811.h b/drivers/usb/host/sl811.h index 7690d98..b6b8c1f 100644 --- a/drivers/usb/host/sl811.h +++ b/drivers/usb/host/sl811.h @@ -261,6 +261,6 @@ sl811_read_buf(struct sl811 *sl811, int addr, void *buf, size_t count) #endif #define ERR(stuff...) printk(KERN_ERR "sl811: " stuff) -#define WARN(stuff...) printk(KERN_WARNING "sl811: " stuff) +#define WARNING(stuff...) printk(KERN_WARNING "sl811: " stuff) #define INFO(stuff...) printk(KERN_INFO "sl811: " stuff) diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c index 054dedd..b358c4e 100644 --- a/drivers/usb/misc/usbtest.c +++ b/drivers/usb/misc/usbtest.c @@ -81,7 +81,7 @@ static struct usb_device *testdev_to_usbdev (struct usbtest_dev *test) #define ERROR(tdev, fmt, args...) \ dev_err(&(tdev)->intf->dev , fmt , ## args) -#define WARN(tdev, fmt, args...) \ +#define WARNING(tdev, fmt, args...) \ dev_warn(&(tdev)->intf->dev , fmt , ## args) /*-------------------------------------------------------------------------*/ @@ -1946,7 +1946,7 @@ usbtest_probe (struct usb_interface *intf, const struct usb_device_id *id) status = get_endpoints (dev, intf); if (status < 0) { - WARN(dev, "couldn't get endpoints, %d\n", + WARNING(dev, "couldn't get endpoints, %d\n", status); return status; } diff --git a/drivers/usb/mon/mon_text.c b/drivers/usb/mon/mon_text.c index 5e3e4e9..1f71543 100644 --- a/drivers/usb/mon/mon_text.c +++ b/drivers/usb/mon/mon_text.c @@ -87,7 +87,7 @@ struct mon_reader_text { static struct dentry *mon_dir; /* Usually /sys/kernel/debug/usbmon */ -static void mon_text_ctor(struct kmem_cache *, void *); +static void mon_text_ctor(void *); struct mon_text_ptr { int cnt, limit; @@ -720,7 +720,7 @@ void mon_text_del(struct mon_bus *mbus) /* * Slab interface: constructor. */ -static void mon_text_ctor(struct kmem_cache *slab, void *mem) +static void mon_text_ctor(void *mem) { /* * Nothing to initialize. No, really! diff --git a/drivers/usb/serial/ipaq.c b/drivers/usb/serial/ipaq.c index 832a5a4..cd9a2e13 100644 --- a/drivers/usb/serial/ipaq.c +++ b/drivers/usb/serial/ipaq.c @@ -651,15 +651,17 @@ static int ipaq_open(struct tty_struct *tty, */ kfree(port->bulk_in_buffer); + kfree(port->bulk_out_buffer); + /* make sure the generic serial code knows */ + port->bulk_out_buffer = NULL; + port->bulk_in_buffer = kmalloc(URBDATA_SIZE, GFP_KERNEL); - if (port->bulk_in_buffer == NULL) { - port->bulk_out_buffer = NULL; /* prevent double free */ + if (port->bulk_in_buffer == NULL) goto enomem; - } - kfree(port->bulk_out_buffer); port->bulk_out_buffer = kmalloc(URBDATA_SIZE, GFP_KERNEL); if (port->bulk_out_buffer == NULL) { + /* the buffer is useless, free it */ kfree(port->bulk_in_buffer); port->bulk_in_buffer = NULL; goto enomem; diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig index 9b887ef..70d135e 100644 --- a/drivers/video/Kconfig +++ b/drivers/video/Kconfig @@ -1658,6 +1658,32 @@ config FB_PM3 similar boards, 3DLabs Permedia3 Create!, Appian Jeronimo 2000 and maybe other boards. +config FB_CARMINE + tristate "Fujitsu carmine frame buffer support" + depends on FB && PCI + select FB_CFB_FILLRECT + select FB_CFB_COPYAREA + select FB_CFB_IMAGEBLIT + help + This is the frame buffer device driver for the Fujitsu Carmine chip. + The driver provides two independent frame buffer devices. + +choice + depends on FB_CARMINE + prompt "DRAM timing" + default FB_CARMINE_DRAM_EVAL + +config FB_CARMINE_DRAM_EVAL + bool "Eval board timings" + help + Use timings which work on the eval card. + +config CARMINE_DRAM_CUSTOM + bool "Custom board timings" + help + Use custom board timings. +endchoice + config FB_AU1100 bool "Au1100 LCD Driver" depends on (FB = y) && MIPS && SOC_AU1100 @@ -1840,6 +1866,16 @@ config FB_W100 If unsure, say N. +config FB_SH_MOBILE_LCDC + tristate "SuperH Mobile LCDC framebuffer support" + depends on FB && SUPERH + select FB_CFB_FILLRECT + select FB_CFB_COPYAREA + select FB_CFB_IMAGEBLIT + default m + ---help--- + Frame buffer driver for the on-chip SH-Mobile LCD controller. + config FB_S3C2410 tristate "S3C2410 LCD framebuffer support" depends on FB && ARCH_S3C2410 @@ -1951,6 +1987,23 @@ config FB_AM200EPD This enables support for the Metronome display controller used on the E-Ink AM-200 EPD devkit. +config FB_COBALT + tristate "Cobalt server LCD frame buffer support" + depends on FB && MIPS_COBALT + +config FB_SH7760 + bool "SH7760/SH7763 LCDC support" + depends on FB && (CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7763) + select FB_CFB_FILLRECT + select FB_CFB_COPYAREA + select FB_CFB_IMAGEBLIT + help + Support for the SH7760/SH7763 integrated (D)STN/TFT LCD Controller. + Supports display resolutions up to 1024x1024 pixel, grayscale and + color operation, with depths ranging from 1 bpp to 8 bpp monochrome + and 8, 15 or 16 bpp color; 90 degrees clockwise display rotation for + panels <= 320 pixel horizontal resolution. + config FB_VIRTUAL tristate "Virtual Frame Buffer support (ONLY FOR TESTING!)" depends on FB diff --git a/drivers/video/Makefile b/drivers/video/Makefile index 04bca35..0ebc1bf 100644 --- a/drivers/video/Makefile +++ b/drivers/video/Makefile @@ -106,17 +106,22 @@ obj-$(CONFIG_FB_PMAGB_B) += pmagb-b-fb.o obj-$(CONFIG_FB_MAXINE) += maxinefb.o obj-$(CONFIG_FB_METRONOME) += metronomefb.o obj-$(CONFIG_FB_S1D13XXX) += s1d13xxxfb.o +obj-$(CONFIG_FB_SH7760) += sh7760fb.o obj-$(CONFIG_FB_IMX) += imxfb.o obj-$(CONFIG_FB_S3C2410) += s3c2410fb.o obj-$(CONFIG_FB_FSL_DIU) += fsl-diu-fb.o +obj-$(CONFIG_FB_COBALT) += cobalt_lcdfb.o obj-$(CONFIG_FB_PNX4008_DUM) += pnx4008/ obj-$(CONFIG_FB_PNX4008_DUM_RGB) += pnx4008/ obj-$(CONFIG_FB_IBM_GXT4500) += gxt4500.o obj-$(CONFIG_FB_PS3) += ps3fb.o obj-$(CONFIG_FB_SM501) += sm501fb.o obj-$(CONFIG_FB_XILINX) += xilinxfb.o +obj-$(CONFIG_FB_SH_MOBILE_LCDC) += sh_mobile_lcdcfb.o +obj-$(CONFIG_FB_SH7343VOU) += sh7343_voufb.o obj-$(CONFIG_FB_OMAP) += omap/ obj-$(CONFIG_XEN_FBDEV_FRONTEND) += xen-fbfront.o +obj-$(CONFIG_FB_CARMINE) += carminefb.o # Platform or fallback drivers go here obj-$(CONFIG_FB_UVESA) += uvesafb.o diff --git a/drivers/video/acornfb.c b/drivers/video/acornfb.c index eedb828..017233d 100644 --- a/drivers/video/acornfb.c +++ b/drivers/video/acornfb.c @@ -23,6 +23,7 @@ #include <linux/string.h> #include <linux/ctype.h> #include <linux/slab.h> +#include <linux/mm.h> #include <linux/init.h> #include <linux/fb.h> #include <linux/platform_device.h> diff --git a/drivers/video/amifb.c b/drivers/video/amifb.c index 45c154a..b8e9a86 100644 --- a/drivers/video/amifb.c +++ b/drivers/video/amifb.c @@ -1136,7 +1136,6 @@ static int amifb_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg * Interface to the low level console driver */ -int amifb_init(void); static void amifb_deinit(void); /* @@ -2048,13 +2047,16 @@ static void amifb_copyarea(struct fb_info *info, width = x2 - dx; height = y2 - dy; + if (area->sx + dx < area->dx || area->sy + dy < area->dy) + return; + /* update sx,sy */ sx = area->sx + (dx - area->dx); sy = area->sy + (dy - area->dy); /* the source must be completely inside the virtual screen */ - if (sx < 0 || sy < 0 || (sx + width) > info->var.xres_virtual || - (sy + height) > info->var.yres_virtual) + if (sx + width > info->var.xres_virtual || + sy + height > info->var.yres_virtual) return; if (dy > sy || (dy == sy && dx > sx)) { @@ -2245,7 +2247,7 @@ static inline void chipfree(void) * Initialisation */ -int __init amifb_init(void) +static int __init amifb_init(void) { int tag, i, err = 0; u_long chipptr; @@ -3790,16 +3792,14 @@ static void ami_rebuild_copper(void) } } - -module_init(amifb_init); - -#ifdef MODULE -MODULE_LICENSE("GPL"); - -void cleanup_module(void) +static void __exit amifb_exit(void) { unregister_framebuffer(&fb_info); amifb_deinit(); amifb_video_off(); } -#endif /* MODULE */ + +module_init(amifb_init); +module_exit(amifb_exit); + +MODULE_LICENSE("GPL"); diff --git a/drivers/video/atafb.c b/drivers/video/atafb.c index fa55d35..77eb8b3 100644 --- a/drivers/video/atafb.c +++ b/drivers/video/atafb.c @@ -2593,13 +2593,16 @@ static void atafb_copyarea(struct fb_info *info, const struct fb_copyarea *area) width = x2 - dx; height = y2 - dy; + if (area->sx + dx < area->dx || area->sy + dy < area->dy) + return; + /* update sx,sy */ sx = area->sx + (dx - area->dx); sy = area->sy + (dy - area->dy); /* the source must be completely inside the virtual screen */ - if (sx < 0 || sy < 0 || (sx + width) > info->var.xres_virtual || - (sy + height) > info->var.yres_virtual) + if (sx + width > info->var.xres_virtual || + sy + height > info->var.yres_virtual) return; if (dy > sy || (dy == sy && dx > sx)) { diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c index b004036..5b3a15d 100644 --- a/drivers/video/atmel_lcdfb.c +++ b/drivers/video/atmel_lcdfb.c @@ -256,6 +256,20 @@ static int atmel_lcdfb_alloc_video_memory(struct atmel_lcdfb_info *sinfo) return 0; } +static const struct fb_videomode *atmel_lcdfb_choose_mode(struct fb_var_screeninfo *var, + struct fb_info *info) +{ + struct fb_videomode varfbmode; + const struct fb_videomode *fbmode = NULL; + + fb_var_to_videomode(&varfbmode, var); + fbmode = fb_find_nearest_mode(&varfbmode, &info->modelist); + if (fbmode) + fb_videomode_to_var(var, fbmode); + return fbmode; +} + + /** * atmel_lcdfb_check_var - Validates a var passed in. * @var: frame buffer variable screen structure @@ -289,6 +303,15 @@ static int atmel_lcdfb_check_var(struct fb_var_screeninfo *var, clk_value_khz = clk_get_rate(sinfo->lcdc_clk) / 1000; dev_dbg(dev, "%s:\n", __func__); + + if (!(var->pixclock && var->bits_per_pixel)) { + /* choose a suitable mode if possible */ + if (!atmel_lcdfb_choose_mode(var, info)) { + dev_err(dev, "needed value not specified\n"); + return -EINVAL; + } + } + dev_dbg(dev, " resolution: %ux%u\n", var->xres, var->yres); dev_dbg(dev, " pixclk: %lu KHz\n", PICOS2KHZ(var->pixclock)); dev_dbg(dev, " bpp: %u\n", var->bits_per_pixel); @@ -299,6 +322,13 @@ static int atmel_lcdfb_check_var(struct fb_var_screeninfo *var, return -EINVAL; } + /* Do not allow to have real resoulution larger than virtual */ + if (var->xres > var->xres_virtual) + var->xres_virtual = var->xres; + + if (var->yres > var->yres_virtual) + var->yres_virtual = var->yres; + /* Force same alignment for each line */ var->xres = (var->xres + 3) & ~3UL; var->xres_virtual = (var->xres_virtual + 3) & ~3UL; @@ -379,6 +409,35 @@ static int atmel_lcdfb_check_var(struct fb_var_screeninfo *var, return 0; } +/* + * LCD reset sequence + */ +static void atmel_lcdfb_reset(struct atmel_lcdfb_info *sinfo) +{ + might_sleep(); + + /* LCD power off */ + lcdc_writel(sinfo, ATMEL_LCDC_PWRCON, sinfo->guard_time << ATMEL_LCDC_GUARDT_OFFSET); + + /* wait for the LCDC core to become idle */ + while (lcdc_readl(sinfo, ATMEL_LCDC_PWRCON) & ATMEL_LCDC_BUSY) + msleep(10); + + /* DMA disable */ + lcdc_writel(sinfo, ATMEL_LCDC_DMACON, 0); + + /* wait for DMA engine to become idle */ + while (lcdc_readl(sinfo, ATMEL_LCDC_DMACON) & ATMEL_LCDC_DMABUSY) + msleep(10); + + /* LCD power on */ + lcdc_writel(sinfo, ATMEL_LCDC_PWRCON, + (sinfo->guard_time << ATMEL_LCDC_GUARDT_OFFSET) | ATMEL_LCDC_PWR); + + /* DMA enable */ + lcdc_writel(sinfo, ATMEL_LCDC_DMACON, sinfo->default_dmacon); +} + /** * atmel_lcdfb_set_par - Alters the hardware state. * @info: frame buffer structure that represents a single frame buffer @@ -401,6 +460,8 @@ static int atmel_lcdfb_set_par(struct fb_info *info) unsigned long clk_value_khz; unsigned long bits_per_line; + might_sleep(); + dev_dbg(info->device, "%s:\n", __func__); dev_dbg(info->device, " * resolution: %ux%u (%ux%u virtual)\n", info->var.xres, info->var.yres, @@ -511,6 +572,8 @@ static int atmel_lcdfb_set_par(struct fb_info *info) /* Disable all interrupts */ lcdc_writel(sinfo, ATMEL_LCDC_IDR, ~0UL); + /* Enable FIFO & DMA errors */ + lcdc_writel(sinfo, ATMEL_LCDC_IER, ATMEL_LCDC_UFLWI | ATMEL_LCDC_OWRI | ATMEL_LCDC_MERI); /* ...wait for DMA engine to become idle... */ while (lcdc_readl(sinfo, ATMEL_LCDC_DMACON) & ATMEL_LCDC_DMABUSY) @@ -645,10 +708,26 @@ static irqreturn_t atmel_lcdfb_interrupt(int irq, void *dev_id) u32 status; status = lcdc_readl(sinfo, ATMEL_LCDC_ISR); - lcdc_writel(sinfo, ATMEL_LCDC_IDR, status); + if (status & ATMEL_LCDC_UFLWI) { + dev_warn(info->device, "FIFO underflow %#x\n", status); + /* reset DMA and FIFO to avoid screen shifting */ + schedule_work(&sinfo->task); + } + lcdc_writel(sinfo, ATMEL_LCDC_ICR, status); return IRQ_HANDLED; } +/* + * LCD controller task (to reset the LCD) + */ +static void atmel_lcdfb_task(struct work_struct *work) +{ + struct atmel_lcdfb_info *sinfo = + container_of(work, struct atmel_lcdfb_info, task); + + atmel_lcdfb_reset(sinfo); +} + static int __init atmel_lcdfb_init_fbinfo(struct atmel_lcdfb_info *sinfo) { struct fb_info *info = sinfo->info; @@ -691,6 +770,7 @@ static int __init atmel_lcdfb_probe(struct platform_device *pdev) struct fb_info *info; struct atmel_lcdfb_info *sinfo; struct atmel_lcdfb_info *pdata_sinfo; + struct fb_videomode fbmode; struct resource *regs = NULL; struct resource *map = NULL; int ret; @@ -824,6 +904,10 @@ static int __init atmel_lcdfb_probe(struct platform_device *pdev) goto unmap_mmio; } + /* Some operations on the LCDC might sleep and + * require a preemptible task context */ + INIT_WORK(&sinfo->task, atmel_lcdfb_task); + ret = atmel_lcdfb_init_fbinfo(sinfo); if (ret < 0) { dev_err(dev, "init fbinfo failed: %d\n", ret); @@ -853,6 +937,10 @@ static int __init atmel_lcdfb_probe(struct platform_device *pdev) goto free_cmap; } + /* add selected videomode to modelist */ + fb_var_to_videomode(&fbmode, &info->var); + fb_add_videomode(&fbmode, &info->modelist); + /* Power up the LCDC screen */ if (sinfo->atmel_lcdfb_power_control) sinfo->atmel_lcdfb_power_control(1); @@ -866,6 +954,7 @@ static int __init atmel_lcdfb_probe(struct platform_device *pdev) free_cmap: fb_dealloc_cmap(&info->cmap); unregister_irqs: + cancel_work_sync(&sinfo->task); free_irq(sinfo->irq_base, info); unmap_mmio: exit_backlight(sinfo); @@ -903,6 +992,7 @@ static int __exit atmel_lcdfb_remove(struct platform_device *pdev) if (!sinfo) return 0; + cancel_work_sync(&sinfo->task); exit_backlight(sinfo); if (sinfo->atmel_lcdfb_power_control) sinfo->atmel_lcdfb_power_control(0); diff --git a/drivers/video/aty/aty128fb.c b/drivers/video/aty/aty128fb.c index 07b6add..243ea4a 100644 --- a/drivers/video/aty/aty128fb.c +++ b/drivers/video/aty/aty128fb.c @@ -1339,10 +1339,8 @@ static int aty128_var_to_pll(u32 period_in_ps, struct aty128_pll *pll, if (vclk * 12 < c.ppll_min) vclk = c.ppll_min/12; - pll->post_divider = -1; - /* now, find an acceptable divider */ - for (i = 0; i < sizeof(post_dividers); i++) { + for (i = 0; i < ARRAY_SIZE(post_dividers); i++) { output_freq = post_dividers[i] * vclk; if (output_freq >= c.ppll_min && output_freq <= c.ppll_max) { pll->post_divider = post_dividers[i]; @@ -1350,7 +1348,7 @@ static int aty128_var_to_pll(u32 period_in_ps, struct aty128_pll *pll, } } - if (pll->post_divider < 0) + if (i == ARRAY_SIZE(post_dividers)) return -EINVAL; /* calculate feedback divider */ diff --git a/drivers/video/aty/atyfb_base.c b/drivers/video/aty/atyfb_base.c index bd4ac0b..620ba81 100644 --- a/drivers/video/aty/atyfb_base.c +++ b/drivers/video/aty/atyfb_base.c @@ -424,7 +424,6 @@ static struct { #endif /* CONFIG_FB_ATY_CT */ }; -/* can not fail */ static int __devinit correct_chipset(struct atyfb_par *par) { u8 rev; @@ -437,6 +436,9 @@ static int __devinit correct_chipset(struct atyfb_par *par) if (par->pci_id == aty_chips[i].pci_id) break; + if (i < 0) + return -ENODEV; + name = aty_chips[i].name; par->pll_limits.pll_max = aty_chips[i].pll; par->pll_limits.mclk = aty_chips[i].mclk; @@ -2229,6 +2231,7 @@ static int __devinit aty_init(struct fb_info *info) const char *ramname = NULL, *xtal; int gtb_memsize, has_var = 0; struct fb_var_screeninfo var; + int ret; init_waitqueue_head(&par->vblank.wait); spin_lock_init(&par->int_lock); @@ -2610,7 +2613,8 @@ static int __devinit aty_init(struct fb_info *info) var.yres_virtual = var.yres; } - if (atyfb_check_var(&var, info)) { + ret = atyfb_check_var(&var, info); + if (ret) { PRINTKE("can't set default video mode\n"); goto aty_init_exit; } @@ -2621,10 +2625,12 @@ static int __devinit aty_init(struct fb_info *info) #endif /* CONFIG_FB_ATY_CT */ info->var = var; - if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) + ret = fb_alloc_cmap(&info->cmap, 256, 0); + if (ret < 0) goto aty_init_exit; - if (register_framebuffer(info) < 0) { + ret = register_framebuffer(info); + if (ret < 0) { fb_dealloc_cmap(&info->cmap); goto aty_init_exit; } @@ -2650,7 +2656,7 @@ aty_init_exit: par->mtrr_aper = -1; } #endif - return -1; + return ret; } static void aty_resume_chip(struct fb_info *info) @@ -2709,8 +2715,7 @@ static int atyfb_blank(int blank, struct fb_info *info) if (par->lock_blank || par->asleep) return 0; -#ifdef CONFIG_FB_ATY_BACKLIGHT -#elif defined(CONFIG_FB_ATY_GENERIC_LCD) +#ifdef CONFIG_FB_ATY_GENERIC_LCD if (par->lcd_table && blank > FB_BLANK_NORMAL && (aty_ld_lcd(LCD_GEN_CNTL, par) & LCD_ON)) { u32 pm = aty_ld_lcd(POWER_MANAGEMENT, par); @@ -2739,8 +2744,7 @@ static int atyfb_blank(int blank, struct fb_info *info) } aty_st_le32(CRTC_GEN_CNTL, gen_cntl, par); -#ifdef CONFIG_FB_ATY_BACKLIGHT -#elif defined(CONFIG_FB_ATY_GENERIC_LCD) +#ifdef CONFIG_FB_ATY_GENERIC_LCD if (par->lcd_table && blank <= FB_BLANK_NORMAL && (aty_ld_lcd(LCD_GEN_CNTL, par) & LCD_ON)) { u32 pm = aty_ld_lcd(POWER_MANAGEMENT, par); @@ -3331,7 +3335,7 @@ static int __devinit init_from_bios(struct atyfb_par *par) PRINTKE("no BIOS frequency table found, use parameters\n"); ret = -ENXIO; } - iounmap((void* __iomem )bios_base); + iounmap((void __iomem *)bios_base); return ret; } @@ -3418,14 +3422,7 @@ static int __devinit atyfb_pci_probe(struct pci_dev *pdev, const struct pci_devi struct fb_info *info; struct resource *rp; struct atyfb_par *par; - int i, rc = -ENOMEM; - - for (i = ARRAY_SIZE(aty_chips) - 1; i >= 0; i--) - if (pdev->device == aty_chips[i].pci_id) - break; - - if (i < 0) - return -ENODEV; + int rc = -ENOMEM; /* Enable device in PCI config */ if (pci_enable_device(pdev)) { @@ -3456,7 +3453,7 @@ static int __devinit atyfb_pci_probe(struct pci_dev *pdev, const struct pci_devi par = info->par; info->fix = atyfb_fix; info->device = &pdev->dev; - par->pci_id = aty_chips[i].pci_id; + par->pci_id = pdev->device; par->res_start = res_start; par->res_size = res_size; par->irq = pdev->irq; @@ -3474,7 +3471,8 @@ static int __devinit atyfb_pci_probe(struct pci_dev *pdev, const struct pci_devi pci_set_drvdata(pdev, info); /* Init chip & register framebuffer */ - if (aty_init(info)) + rc = aty_init(info); + if (rc) goto err_release_io; #ifdef __sparc__ @@ -3655,18 +3653,62 @@ static void __devexit atyfb_pci_remove(struct pci_dev *pdev) atyfb_remove(info); } -/* - * This driver uses its own matching table. That will be more difficult - * to fix, so for now, we just match against any ATI ID and let the - * probe() function find out what's up. That also mean we don't have - * a module ID table though. - */ static struct pci_device_id atyfb_pci_tbl[] = { - { PCI_VENDOR_ID_ATI, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, - PCI_BASE_CLASS_DISPLAY << 16, 0xff0000, 0 }, - { 0, } +#ifdef CONFIG_FB_ATY_GX + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GX) }, + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64CX) }, +#endif /* CONFIG_FB_ATY_GX */ + +#ifdef CONFIG_FB_ATY_CT + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64CT) }, + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64ET) }, + + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LT) }, + + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64VT) }, + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GT) }, + + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64VU) }, + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GU) }, + + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LG) }, + + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64VV) }, + + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GV) }, + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GW) }, + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GY) }, + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GZ) }, + + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GB) }, + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GD) }, + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GI) }, + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GP) }, + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GQ) }, + + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LB) }, + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LD) }, + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LI) }, + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LP) }, + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LQ) }, + + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GM) }, + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GN) }, + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GO) }, + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GL) }, + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GR) }, + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GS) }, + + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LM) }, + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LN) }, + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LR) }, + { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64LS) }, +#endif /* CONFIG_FB_ATY_CT */ + { } }; +MODULE_DEVICE_TABLE(pci, atyfb_pci_tbl); + static struct pci_driver atyfb_driver = { .name = "atyfb", .id_table = atyfb_pci_tbl, diff --git a/drivers/video/aty/radeon_base.c b/drivers/video/aty/radeon_base.c index 400e926..652273e 100644 --- a/drivers/video/aty/radeon_base.c +++ b/drivers/video/aty/radeon_base.c @@ -2098,15 +2098,7 @@ static void radeon_identify_vram(struct radeonfb_info *rinfo) static ssize_t radeon_show_one_edid(char *buf, loff_t off, size_t count, const u8 *edid) { - if (off > EDID_LENGTH) - return 0; - - if (off + count > EDID_LENGTH) - count = EDID_LENGTH - off; - - memcpy(buf, edid + off, count); - - return count; + return memory_read_from_buffer(buf, count, &off, edid, EDID_LENGTH); } @@ -2161,6 +2153,7 @@ static int __devinit radeonfb_pci_register (struct pci_dev *pdev, struct radeonfb_info *rinfo; int ret; unsigned char c1, c2; + int err = 0; pr_debug("radeonfb_pci_register BEGIN\n"); @@ -2340,9 +2333,14 @@ static int __devinit radeonfb_pci_register (struct pci_dev *pdev, /* Register some sysfs stuff (should be done better) */ if (rinfo->mon1_EDID) - sysfs_create_bin_file(&rinfo->pdev->dev.kobj, &edid1_attr); + err |= sysfs_create_bin_file(&rinfo->pdev->dev.kobj, + &edid1_attr); if (rinfo->mon2_EDID) - sysfs_create_bin_file(&rinfo->pdev->dev.kobj, &edid2_attr); + err |= sysfs_create_bin_file(&rinfo->pdev->dev.kobj, + &edid2_attr); + if (err) + pr_warning("%s() Creating sysfs files failed, continuing\n", + __func__); /* save current mode regs before we switch into the new one * so we can restore this upon __exit diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig index 30bf7f2..452b770 100644 --- a/drivers/video/backlight/Kconfig +++ b/drivers/video/backlight/Kconfig @@ -36,6 +36,30 @@ config LCD_LTV350QV The LTV350QV panel is present on all ATSTK1000 boards. +config LCD_ILI9320 + tristate + depends on LCD_CLASS_DEVICE && BACKLIGHT_LCD_SUPPORT + default n + help + If you have a panel based on the ILI9320 controller chip + then say y to include a power driver for it. + +config LCD_VGG2432A4 + tristate "VGG2432A4 LCM device support" + depends on BACKLIGHT_LCD_SUPPORT && LCD_CLASS_DEVICE && SPI_MASTER + select LCD_ILI9320 + default n + help + If you have a VGG2432A4 panel based on the ILI9320 controller chip + then say y to include a power driver for it. + +config LCD_PLATFORM + tristate "Platform LCD controls" + depends on LCD_CLASS_DEVICE + help + This driver provides a platform-device registered LCD power + control interface. + # # Backlight # @@ -63,6 +87,18 @@ config BACKLIGHT_ATMEL_LCDC If in doubt, it's safe to enable this option; it doesn't kick in unless the board's description says it's wired that way. +config BACKLIGHT_ATMEL_PWM + tristate "Atmel PWM backlight control" + depends on BACKLIGHT_CLASS_DEVICE && ATMEL_PWM + default n + help + Say Y here if you want to use the PWM peripheral in Atmel AT91 and + AVR32 devices. This driver will need additional platform data to know + which PWM instance to use and how to configure it. + + To compile this driver as a module, choose M here: the module will be + called atmel-pwm-bl. + config BACKLIGHT_CORGI tristate "Generic (aka Sharp Corgi) Backlight Driver" depends on BACKLIGHT_CLASS_DEVICE @@ -119,3 +155,12 @@ config BACKLIGHT_PWM help If you have a LCD backlight adjustable by PWM, say Y to enable this driver. + +config BACKLIGHT_MBP_NVIDIA + tristate "MacBook Pro Nvidia Backlight Driver" + depends on BACKLIGHT_CLASS_DEVICE && X86 + default n + help + If you have an Apple Macbook Pro with Nvidia graphics hardware say Y + to enable a driver for its backlight + diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile index b51a7cd..b405aac 100644 --- a/drivers/video/backlight/Makefile +++ b/drivers/video/backlight/Makefile @@ -1,9 +1,13 @@ # Backlight & LCD drivers obj-$(CONFIG_LCD_CLASS_DEVICE) += lcd.o -obj-$(CONFIG_LCD_LTV350QV) += ltv350qv.o +obj-$(CONFIG_LCD_LTV350QV) += ltv350qv.o +obj-$(CONFIG_LCD_ILI9320) += ili9320.o +obj-$(CONFIG_LCD_PLATFORM) += platform_lcd.o +obj-$(CONFIG_LCD_VGG2432A4) += vgg2432a4.o obj-$(CONFIG_BACKLIGHT_CLASS_DEVICE) += backlight.o +obj-$(CONFIG_BACKLIGHT_ATMEL_PWM) += atmel-pwm-bl.o obj-$(CONFIG_BACKLIGHT_CORGI) += corgi_bl.o obj-$(CONFIG_BACKLIGHT_HP680) += hp680_bl.o obj-$(CONFIG_BACKLIGHT_LOCOMO) += locomolcd.o @@ -11,3 +15,5 @@ obj-$(CONFIG_BACKLIGHT_OMAP1) += omap1_bl.o obj-$(CONFIG_BACKLIGHT_PROGEAR) += progear_bl.o obj-$(CONFIG_BACKLIGHT_CARILLO_RANCH) += cr_bllcd.o obj-$(CONFIG_BACKLIGHT_PWM) += pwm_bl.o +obj-$(CONFIG_BACKLIGHT_MBP_NVIDIA) += mbp_nvidia_bl.o + diff --git a/drivers/video/backlight/atmel-pwm-bl.c b/drivers/video/backlight/atmel-pwm-bl.c new file mode 100644 index 0000000..505c082 --- /dev/null +++ b/drivers/video/backlight/atmel-pwm-bl.c @@ -0,0 +1,244 @@ +/* + * Copyright (C) 2008 Atmel Corporation + * + * Backlight driver using Atmel PWM peripheral. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + */ +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/fb.h> +#include <linux/clk.h> +#include <linux/gpio.h> +#include <linux/backlight.h> +#include <linux/atmel_pwm.h> +#include <linux/atmel-pwm-bl.h> + +struct atmel_pwm_bl { + const struct atmel_pwm_bl_platform_data *pdata; + struct backlight_device *bldev; + struct platform_device *pdev; + struct pwm_channel pwmc; + int gpio_on; +}; + +static int atmel_pwm_bl_set_intensity(struct backlight_device *bd) +{ + struct atmel_pwm_bl *pwmbl = bl_get_data(bd); + int intensity = bd->props.brightness; + int pwm_duty; + + if (bd->props.power != FB_BLANK_UNBLANK) + intensity = 0; + if (bd->props.fb_blank != FB_BLANK_UNBLANK) + intensity = 0; + + if (pwmbl->pdata->pwm_active_low) + pwm_duty = pwmbl->pdata->pwm_duty_min + intensity; + else + pwm_duty = pwmbl->pdata->pwm_duty_max - intensity; + + if (pwm_duty > pwmbl->pdata->pwm_duty_max) + pwm_duty = pwmbl->pdata->pwm_duty_max; + if (pwm_duty < pwmbl->pdata->pwm_duty_min) + pwm_duty = pwmbl->pdata->pwm_duty_min; + + if (!intensity) { + if (pwmbl->gpio_on != -1) { + gpio_set_value(pwmbl->gpio_on, + 0 ^ pwmbl->pdata->on_active_low); + } + pwm_channel_writel(&pwmbl->pwmc, PWM_CUPD, pwm_duty); + pwm_channel_disable(&pwmbl->pwmc); + } else { + pwm_channel_enable(&pwmbl->pwmc); + pwm_channel_writel(&pwmbl->pwmc, PWM_CUPD, pwm_duty); + if (pwmbl->gpio_on != -1) { + gpio_set_value(pwmbl->gpio_on, + 1 ^ pwmbl->pdata->on_active_low); + } + } + + return 0; +} + +static int atmel_pwm_bl_get_intensity(struct backlight_device *bd) +{ + struct atmel_pwm_bl *pwmbl = bl_get_data(bd); + u8 intensity; + + if (pwmbl->pdata->pwm_active_low) { + intensity = pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY) - + pwmbl->pdata->pwm_duty_min; + } else { + intensity = pwmbl->pdata->pwm_duty_max - + pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY); + } + + return intensity; +} + +static int atmel_pwm_bl_init_pwm(struct atmel_pwm_bl *pwmbl) +{ + unsigned long pwm_rate = pwmbl->pwmc.mck; + unsigned long prescale = DIV_ROUND_UP(pwm_rate, + (pwmbl->pdata->pwm_frequency * + pwmbl->pdata->pwm_compare_max)) - 1; + + /* + * Prescale must be power of two and maximum 0xf in size because of + * hardware limit. PWM speed will be: + * PWM module clock speed / (2 ^ prescale). + */ + prescale = fls(prescale); + if (prescale > 0xf) + prescale = 0xf; + + pwm_channel_writel(&pwmbl->pwmc, PWM_CMR, prescale); + pwm_channel_writel(&pwmbl->pwmc, PWM_CDTY, + pwmbl->pdata->pwm_duty_min + + pwmbl->bldev->props.brightness); + pwm_channel_writel(&pwmbl->pwmc, PWM_CPRD, + pwmbl->pdata->pwm_compare_max); + + dev_info(&pwmbl->pdev->dev, "Atmel PWM backlight driver " + "(%lu Hz)\n", pwmbl->pwmc.mck / + pwmbl->pdata->pwm_compare_max / + (1 << prescale)); + + return pwm_channel_enable(&pwmbl->pwmc); +} + +static struct backlight_ops atmel_pwm_bl_ops = { + .get_brightness = atmel_pwm_bl_get_intensity, + .update_status = atmel_pwm_bl_set_intensity, +}; + +static int atmel_pwm_bl_probe(struct platform_device *pdev) +{ + const struct atmel_pwm_bl_platform_data *pdata; + struct backlight_device *bldev; + struct atmel_pwm_bl *pwmbl; + int retval; + + pwmbl = kzalloc(sizeof(struct atmel_pwm_bl), GFP_KERNEL); + if (!pwmbl) + return -ENOMEM; + + pwmbl->pdev = pdev; + + pdata = pdev->dev.platform_data; + if (!pdata) { + retval = -ENODEV; + goto err_free_mem; + } + + if (pdata->pwm_compare_max < pdata->pwm_duty_max || + pdata->pwm_duty_min > pdata->pwm_duty_max || + pdata->pwm_frequency == 0) { + retval = -EINVAL; + goto err_free_mem; + } + + pwmbl->pdata = pdata; + pwmbl->gpio_on = pdata->gpio_on; + + retval = pwm_channel_alloc(pdata->pwm_channel, &pwmbl->pwmc); + if (retval) + goto err_free_mem; + + if (pwmbl->gpio_on != -1) { + retval = gpio_request(pwmbl->gpio_on, "gpio_atmel_pwm_bl"); + if (retval) { + pwmbl->gpio_on = -1; + goto err_free_pwm; + } + + /* Turn display off by defatult. */ + retval = gpio_direction_output(pwmbl->gpio_on, + 0 ^ pdata->on_active_low); + if (retval) + goto err_free_gpio; + } + + bldev = backlight_device_register("atmel-pwm-bl", + &pdev->dev, pwmbl, &atmel_pwm_bl_ops); + if (IS_ERR(bldev)) { + retval = PTR_ERR(bldev); + goto err_free_gpio; + } + + pwmbl->bldev = bldev; + + platform_set_drvdata(pdev, pwmbl); + + /* Power up the backlight by default at middle intesity. */ + bldev->props.power = FB_BLANK_UNBLANK; + bldev->props.max_brightness = pdata->pwm_duty_max - pdata->pwm_duty_min; + bldev->props.brightness = bldev->props.max_brightness / 2; + + retval = atmel_pwm_bl_init_pwm(pwmbl); + if (retval) + goto err_free_bl_dev; + + atmel_pwm_bl_set_intensity(bldev); + + return 0; + +err_free_bl_dev: + platform_set_drvdata(pdev, NULL); + backlight_device_unregister(bldev); +err_free_gpio: + if (pwmbl->gpio_on != -1) + gpio_free(pwmbl->gpio_on); +err_free_pwm: + pwm_channel_free(&pwmbl->pwmc); +err_free_mem: + kfree(pwmbl); + return retval; +} + +static int __exit atmel_pwm_bl_remove(struct platform_device *pdev) +{ + struct atmel_pwm_bl *pwmbl = platform_get_drvdata(pdev); + + if (pwmbl->gpio_on != -1) { + gpio_set_value(pwmbl->gpio_on, 0); + gpio_free(pwmbl->gpio_on); + } + pwm_channel_disable(&pwmbl->pwmc); + pwm_channel_free(&pwmbl->pwmc); + backlight_device_unregister(pwmbl->bldev); + platform_set_drvdata(pdev, NULL); + kfree(pwmbl); + + return 0; +} + +static struct platform_driver atmel_pwm_bl_driver = { + .driver = { + .name = "atmel-pwm-bl", + }, + /* REVISIT add suspend() and resume() */ + .remove = __exit_p(atmel_pwm_bl_remove), +}; + +static int __init atmel_pwm_bl_init(void) +{ + return platform_driver_probe(&atmel_pwm_bl_driver, atmel_pwm_bl_probe); +} +module_init(atmel_pwm_bl_init); + +static void __exit atmel_pwm_bl_exit(void) +{ + platform_driver_unregister(&atmel_pwm_bl_driver); +} +module_exit(atmel_pwm_bl_exit); + +MODULE_AUTHOR("Hans-Christian egtvedt <hans-christian.egtvedt@atmel.com>"); +MODULE_DESCRIPTION("Atmel PWM backlight driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/video/backlight/backlight.c b/drivers/video/backlight/backlight.c index 3939475..fab0bc8 100644 --- a/drivers/video/backlight/backlight.c +++ b/drivers/video/backlight/backlight.c @@ -191,6 +191,7 @@ static struct device_attribute bl_device_attributes[] = { * backlight_device class. * @name: the name of the new object(must be the same as the name of the * respective framebuffer device). + * @parent: a pointer to the parent device * @devdata: an optional pointer to be stored for private driver use. The * methods may retrieve it by using bl_get_data(bd). * @ops: the backlight operations structure. diff --git a/drivers/video/backlight/ili9320.c b/drivers/video/backlight/ili9320.c new file mode 100644 index 0000000..ba89b41 --- /dev/null +++ b/drivers/video/backlight/ili9320.c @@ -0,0 +1,330 @@ +/* drivers/video/backlight/ili9320.c + * + * ILI9320 LCD controller driver core. + * + * Copyright 2007 Simtec Electronics + * http://armlinux.simtec.co.uk/ + * Ben Dooks <ben@simtec.co.uk> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#include <linux/delay.h> +#include <linux/err.h> +#include <linux/fb.h> +#include <linux/init.h> +#include <linux/lcd.h> +#include <linux/module.h> + +#include <linux/spi/spi.h> + +#include <video/ili9320.h> + +#include "ili9320.h" + + +static inline int ili9320_write_spi(struct ili9320 *ili, + unsigned int reg, + unsigned int value) +{ + struct ili9320_spi *spi = &ili->access.spi; + unsigned char *addr = spi->buffer_addr; + unsigned char *data = spi->buffer_data; + + /* spi message consits of: + * first byte: ID and operation + */ + + addr[0] = spi->id | ILI9320_SPI_INDEX | ILI9320_SPI_WRITE; + addr[1] = reg >> 8; + addr[2] = reg; + + /* second message is the data to transfer */ + + data[0] = spi->id | ILI9320_SPI_DATA | ILI9320_SPI_WRITE; + data[1] = value >> 8; + data[2] = value; + + return spi_sync(spi->dev, &spi->message); +} + +int ili9320_write(struct ili9320 *ili, unsigned int reg, unsigned int value) +{ + dev_dbg(ili->dev, "write: reg=%02x, val=%04x\n", reg, value); + return ili->write(ili, reg, value); +} + +EXPORT_SYMBOL_GPL(ili9320_write); + +int ili9320_write_regs(struct ili9320 *ili, + struct ili9320_reg *values, + int nr_values) +{ + int index; + int ret; + + for (index = 0; index < nr_values; index++, values++) { + ret = ili9320_write(ili, values->address, values->value); + if (ret != 0) + return ret; + } + + return 0; +} + +EXPORT_SYMBOL_GPL(ili9320_write_regs); + +static void ili9320_reset(struct ili9320 *lcd) +{ + struct ili9320_platdata *cfg = lcd->platdata; + + cfg->reset(1); + mdelay(50); + + cfg->reset(0); + mdelay(50); + + cfg->reset(1); + mdelay(100); +} + +static inline int ili9320_init_chip(struct ili9320 *lcd) +{ + int ret; + + ili9320_reset(lcd); + + ret = lcd->client->init(lcd, lcd->platdata); + if (ret != 0) { + dev_err(lcd->dev, "failed to initialise display\n"); + return ret; + } + + lcd->initialised = 1; + return 0; +} + +static inline int ili9320_power_on(struct ili9320 *lcd) +{ + if (!lcd->initialised) + ili9320_init_chip(lcd); + + lcd->display1 |= (ILI9320_DISPLAY1_D(3) | ILI9320_DISPLAY1_BASEE); + ili9320_write(lcd, ILI9320_DISPLAY1, lcd->display1); + + return 0; +} + +static inline int ili9320_power_off(struct ili9320 *lcd) +{ + lcd->display1 &= ~(ILI9320_DISPLAY1_D(3) | ILI9320_DISPLAY1_BASEE); + ili9320_write(lcd, ILI9320_DISPLAY1, lcd->display1); + + return 0; +} + +#define POWER_IS_ON(pwr) ((pwr) <= FB_BLANK_NORMAL) + +static int ili9320_power(struct ili9320 *lcd, int power) +{ + int ret = 0; + + dev_dbg(lcd->dev, "power %d => %d\n", lcd->power, power); + + if (POWER_IS_ON(power) && !POWER_IS_ON(lcd->power)) + ret = ili9320_power_on(lcd); + else if (!POWER_IS_ON(power) && POWER_IS_ON(lcd->power)) + ret = ili9320_power_off(lcd); + + if (ret == 0) + lcd->power = power; + else + dev_warn(lcd->dev, "failed to set power mode %d\n", power); + + return ret; +} + +static inline struct ili9320 *to_our_lcd(struct lcd_device *lcd) +{ + return lcd_get_data(lcd); +} + +static int ili9320_set_power(struct lcd_device *ld, int power) +{ + struct ili9320 *lcd = to_our_lcd(ld); + + return ili9320_power(lcd, power); +} + +static int ili9320_get_power(struct lcd_device *ld) +{ + struct ili9320 *lcd = to_our_lcd(ld); + + return lcd->power; +} + +static struct lcd_ops ili9320_ops = { + .get_power = ili9320_get_power, + .set_power = ili9320_set_power, +}; + +static void __devinit ili9320_setup_spi(struct ili9320 *ili, + struct spi_device *dev) +{ + struct ili9320_spi *spi = &ili->access.spi; + + ili->write = ili9320_write_spi; + spi->dev = dev; + + /* fill the two messages we are going to use to send the data + * with, the first the address followed by the data. The datasheet + * says they should be done as two distinct cycles of the SPI CS line. + */ + + spi->xfer[0].tx_buf = spi->buffer_addr; + spi->xfer[1].tx_buf = spi->buffer_data; + spi->xfer[0].len = 3; + spi->xfer[1].len = 3; + spi->xfer[0].bits_per_word = 8; + spi->xfer[1].bits_per_word = 8; + spi->xfer[0].cs_change = 1; + + spi_message_init(&spi->message); + spi_message_add_tail(&spi->xfer[0], &spi->message); + spi_message_add_tail(&spi->xfer[1], &spi->message); +} + +int __devinit ili9320_probe_spi(struct spi_device *spi, + struct ili9320_client *client) +{ + struct ili9320_platdata *cfg = spi->dev.platform_data; + struct device *dev = &spi->dev; + struct ili9320 *ili; + struct lcd_device *lcd; + int ret = 0; + + /* verify we where given some information */ + + if (cfg == NULL) { + dev_err(dev, "no platform data supplied\n"); + return -EINVAL; + } + + if (cfg->hsize <= 0 || cfg->vsize <= 0 || cfg->reset == NULL) { + dev_err(dev, "invalid platform data supplied\n"); + return -EINVAL; + } + + /* allocate and initialse our state */ + + ili = kzalloc(sizeof(struct ili9320), GFP_KERNEL); + if (ili == NULL) { + dev_err(dev, "no memory for device\n"); + return -ENOMEM; + } + + ili->access.spi.id = ILI9320_SPI_IDCODE | ILI9320_SPI_ID(1); + + ili->dev = dev; + ili->client = client; + ili->power = FB_BLANK_POWERDOWN; + ili->platdata = cfg; + + dev_set_drvdata(&spi->dev, ili); + + ili9320_setup_spi(ili, spi); + + lcd = lcd_device_register("ili9320", dev, ili, &ili9320_ops); + if (IS_ERR(lcd)) { + dev_err(dev, "failed to register lcd device\n"); + ret = PTR_ERR(lcd); + goto err_free; + } + + ili->lcd = lcd; + + dev_info(dev, "initialising %s\n", client->name); + + ret = ili9320_power(ili, FB_BLANK_UNBLANK); + if (ret != 0) { + dev_err(dev, "failed to set lcd power state\n"); + goto err_unregister; + } + + return 0; + + err_unregister: + lcd_device_unregister(lcd); + + err_free: + kfree(ili); + + return ret; +} + +EXPORT_SYMBOL_GPL(ili9320_probe_spi); + +int __devexit ili9320_remove(struct ili9320 *ili) +{ + ili9320_power(ili, FB_BLANK_POWERDOWN); + + lcd_device_unregister(ili->lcd); + kfree(ili); + + return 0; +} + +EXPORT_SYMBOL_GPL(ili9320_remove); + +#ifdef CONFIG_PM +int ili9320_suspend(struct ili9320 *lcd, pm_message_t state) +{ + int ret; + + dev_dbg(lcd->dev, "%s: event %d\n", __func__, state.event); + + if (state.event == PM_EVENT_SUSPEND) { + ret = ili9320_power(lcd, FB_BLANK_POWERDOWN); + + if (lcd->platdata->suspend == ILI9320_SUSPEND_DEEP) { + ili9320_write(lcd, ILI9320_POWER1, lcd->power1 | + ILI9320_POWER1_SLP | + ILI9320_POWER1_DSTB); + lcd->initialised = 0; + } + + return ret; + } + + return 0; +} + +EXPORT_SYMBOL_GPL(ili9320_suspend); + +int ili9320_resume(struct ili9320 *lcd) +{ + dev_info(lcd->dev, "resuming from power state %d\n", lcd->power); + + if (lcd->platdata->suspend == ILI9320_SUSPEND_DEEP) { + ili9320_write(lcd, ILI9320_POWER1, 0x00); + } + + return ili9320_power(lcd, FB_BLANK_UNBLANK); +} + +EXPORT_SYMBOL_GPL(ili9320_resume); +#endif + +/* Power down all displays on reboot, poweroff or halt */ +void ili9320_shutdown(struct ili9320 *lcd) +{ + ili9320_power(lcd, FB_BLANK_POWERDOWN); +} + +EXPORT_SYMBOL_GPL(ili9320_shutdown); + +MODULE_AUTHOR("Ben Dooks <ben-linux@fluff.org>"); +MODULE_DESCRIPTION("ILI9320 LCD Driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/video/backlight/ili9320.h b/drivers/video/backlight/ili9320.h new file mode 100644 index 0000000..e388eca --- /dev/null +++ b/drivers/video/backlight/ili9320.h @@ -0,0 +1,80 @@ +/* drivers/video/backlight/ili9320.h + * + * ILI9320 LCD controller driver core. + * + * Copyright 2007 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * + * http://armlinux.simtec.co.uk/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +/* Holder for register and value pairs. */ +struct ili9320_reg { + unsigned short address; + unsigned short value; +}; + +struct ili9320; + +struct ili9320_client { + const char *name; + int (*init)(struct ili9320 *ili, struct ili9320_platdata *cfg); + +}; +/* Device attached via an SPI bus. */ +struct ili9320_spi { + struct spi_device *dev; + struct spi_message message; + struct spi_transfer xfer[2]; + + unsigned char id; + unsigned char buffer_addr[4]; + unsigned char buffer_data[4]; +}; + +/* ILI9320 device state. */ +struct ili9320 { + union { + struct ili9320_spi spi; /* SPI attachged device. */ + } access; /* Register access method. */ + + struct device *dev; + struct lcd_device *lcd; /* LCD device we created. */ + struct ili9320_client *client; + struct ili9320_platdata *platdata; + + int power; /* current power state. */ + int initialised; + + unsigned short display1; + unsigned short power1; + + int (*write)(struct ili9320 *ili, unsigned int reg, unsigned int val); +}; + + +/* ILI9320 register access routines */ + +extern int ili9320_write(struct ili9320 *ili, + unsigned int reg, unsigned int value); + +extern int ili9320_write_regs(struct ili9320 *ili, + struct ili9320_reg *values, + int nr_values); + +/* Device probe */ + +extern int ili9320_probe_spi(struct spi_device *spi, + struct ili9320_client *cli); + +extern int ili9320_remove(struct ili9320 *lcd); +extern void ili9320_shutdown(struct ili9320 *lcd); + +/* PM */ + +extern int ili9320_suspend(struct ili9320 *lcd, pm_message_t state); +extern int ili9320_resume(struct ili9320 *lcd); diff --git a/drivers/video/backlight/lcd.c b/drivers/video/backlight/lcd.c index 299fd31..b15b2b8 100644 --- a/drivers/video/backlight/lcd.c +++ b/drivers/video/backlight/lcd.c @@ -33,7 +33,7 @@ static int fb_notifier_callback(struct notifier_block *self, ld = container_of(self, struct lcd_device, fb_notif); mutex_lock(&ld->ops_lock); if (ld->ops) - if (!ld->ops->check_fb || ld->ops->check_fb(evdata->info)) + if (!ld->ops->check_fb || ld->ops->check_fb(ld, evdata->info)) ld->ops->set_power(ld, *(int *)evdata->data); mutex_unlock(&ld->ops_lock); return 0; diff --git a/drivers/video/backlight/mbp_nvidia_bl.c b/drivers/video/backlight/mbp_nvidia_bl.c new file mode 100644 index 0000000..385cba4 --- /dev/null +++ b/drivers/video/backlight/mbp_nvidia_bl.c @@ -0,0 +1,116 @@ +/* + * Backlight Driver for Nvidia 8600 in Macbook Pro + * + * Copyright (c) Red Hat <mjg@redhat.com> + * Based on code from Pommed: + * Copyright (C) 2006 Nicolas Boichat <nicolas @boichat.ch> + * Copyright (C) 2006 Felipe Alfaro Solana <felipe_alfaro @linuxmail.org> + * Copyright (C) 2007 Julien BLACHE <jb@jblache.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This driver triggers SMIs which cause the firmware to change the + * backlight brightness. This is icky in many ways, but it's impractical to + * get at the firmware code in order to figure out what it's actually doing. + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/backlight.h> +#include <linux/err.h> +#include <linux/dmi.h> +#include <linux/io.h> + +static struct backlight_device *mbp_backlight_device; + +static struct dmi_system_id __initdata mbp_device_table[] = { + { + .ident = "3,1", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro3,1"), + }, + }, + { + .ident = "3,2", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro3,2"), + }, + }, + { + .ident = "4,1", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro4,1"), + }, + }, + { } +}; + +static int mbp_send_intensity(struct backlight_device *bd) +{ + int intensity = bd->props.brightness; + + outb(0x04 | (intensity << 4), 0xb3); + outb(0xbf, 0xb2); + + return 0; +} + +static int mbp_get_intensity(struct backlight_device *bd) +{ + outb(0x03, 0xb3); + outb(0xbf, 0xb2); + return inb(0xb3) >> 4; +} + +static struct backlight_ops mbp_ops = { + .get_brightness = mbp_get_intensity, + .update_status = mbp_send_intensity, +}; + +static int __init mbp_init(void) +{ + if (!dmi_check_system(mbp_device_table)) + return -ENODEV; + + if (!request_region(0xb2, 2, "Macbook Pro backlight")) + return -ENXIO; + + mbp_backlight_device = backlight_device_register("mbp_backlight", + NULL, NULL, + &mbp_ops); + if (IS_ERR(mbp_backlight_device)) { + release_region(0xb2, 2); + return PTR_ERR(mbp_backlight_device); + } + + mbp_backlight_device->props.max_brightness = 15; + mbp_backlight_device->props.brightness = + mbp_get_intensity(mbp_backlight_device); + backlight_update_status(mbp_backlight_device); + + return 0; +} + +static void __exit mbp_exit(void) +{ + backlight_device_unregister(mbp_backlight_device); + + release_region(0xb2, 2); +} + +module_init(mbp_init); +module_exit(mbp_exit); + +MODULE_AUTHOR("Matthew Garrett <mjg@redhat.com>"); +MODULE_DESCRIPTION("Nvidia-based Macbook Pro Backlight Driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("svnAppleInc.:pnMacBookPro3,1"); +MODULE_ALIAS("svnAppleInc.:pnMacBookPro3,2"); +MODULE_ALIAS("svnAppleInc.:pnMacBookPro4,1"); diff --git a/drivers/video/backlight/platform_lcd.c b/drivers/video/backlight/platform_lcd.c new file mode 100644 index 0000000..72d44db --- /dev/null +++ b/drivers/video/backlight/platform_lcd.c @@ -0,0 +1,172 @@ +/* drivers/video/backlight/platform_lcd.c + * + * Copyright 2008 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * + * Generic platform-device LCD power control interface. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * +*/ + +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/fb.h> +#include <linux/backlight.h> +#include <linux/lcd.h> + +#include <video/platform_lcd.h> + +struct platform_lcd { + struct device *us; + struct lcd_device *lcd; + struct plat_lcd_data *pdata; + + unsigned int power; + unsigned int suspended : 1; +}; + +static inline struct platform_lcd *to_our_lcd(struct lcd_device *lcd) +{ + return lcd_get_data(lcd); +} + +static int platform_lcd_get_power(struct lcd_device *lcd) +{ + struct platform_lcd *plcd = to_our_lcd(lcd); + + return plcd->power; +} + +static int platform_lcd_set_power(struct lcd_device *lcd, int power) +{ + struct platform_lcd *plcd = to_our_lcd(lcd); + int lcd_power = 1; + + if (power == FB_BLANK_POWERDOWN || plcd->suspended) + lcd_power = 0; + + plcd->pdata->set_power(plcd->pdata, lcd_power); + plcd->power = power; + + return 0; +} + +static int platform_lcd_match(struct lcd_device *lcd, struct fb_info *info) +{ + struct platform_lcd *plcd = to_our_lcd(lcd); + struct plat_lcd_data *pdata = plcd->pdata; + + if (pdata->match_fb) + return pdata->match_fb(pdata, info); + + return plcd->us->parent == info->device; +} + +static struct lcd_ops platform_lcd_ops = { + .get_power = platform_lcd_get_power, + .set_power = platform_lcd_set_power, + .check_fb = platform_lcd_match, +}; + +static int __devinit platform_lcd_probe(struct platform_device *pdev) +{ + struct plat_lcd_data *pdata; + struct platform_lcd *plcd; + struct device *dev = &pdev->dev; + int err; + + pdata = pdev->dev.platform_data; + if (!pdata) { + dev_err(dev, "no platform data supplied\n"); + return -EINVAL; + } + + plcd = kzalloc(sizeof(struct platform_lcd), GFP_KERNEL); + if (!plcd) { + dev_err(dev, "no memory for state\n"); + return -ENOMEM; + } + + plcd->us = dev; + plcd->pdata = pdata; + plcd->lcd = lcd_device_register("platform-lcd", dev, + plcd, &platform_lcd_ops); + if (IS_ERR(plcd->lcd)) { + dev_err(dev, "cannot register lcd device\n"); + err = PTR_ERR(plcd->lcd); + goto err_mem; + } + + platform_set_drvdata(pdev, plcd); + return 0; + + err_mem: + kfree(plcd); + return err; +} + +static int __devexit platform_lcd_remove(struct platform_device *pdev) +{ + struct platform_lcd *plcd = platform_get_drvdata(pdev); + + lcd_device_unregister(plcd->lcd); + kfree(plcd); + + return 0; +} + +#ifdef CONFIG_PM +static int platform_lcd_suspend(struct platform_device *pdev, pm_message_t st) +{ + struct platform_lcd *plcd = platform_get_drvdata(pdev); + + plcd->suspended = 1; + platform_lcd_set_power(plcd->lcd, plcd->power); + + return 0; +} + +static int platform_lcd_resume(struct platform_device *pdev) +{ + struct platform_lcd *plcd = platform_get_drvdata(pdev); + + plcd->suspended = 0; + platform_lcd_set_power(plcd->lcd, plcd->power); + + return 0; +} +#else +#define platform_lcd_suspend NULL +#define platform_lcd_resume NULL +#endif + +static struct platform_driver platform_lcd_driver = { + .driver = { + .name = "platform-lcd", + .owner = THIS_MODULE, + }, + .probe = platform_lcd_probe, + .remove = __devexit_p(platform_lcd_remove), + .suspend = platform_lcd_suspend, + .resume = platform_lcd_resume, +}; + +static int __init platform_lcd_init(void) +{ + return platform_driver_register(&platform_lcd_driver); +} + +static void __exit platform_lcd_cleanup(void) +{ + platform_driver_unregister(&platform_lcd_driver); +} + +module_init(platform_lcd_init); +module_exit(platform_lcd_cleanup); + +MODULE_AUTHOR("Ben Dooks <ben-linux@fluff.org>"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:platform-lcd"); diff --git a/drivers/video/backlight/vgg2432a4.c b/drivers/video/backlight/vgg2432a4.c new file mode 100644 index 0000000..593c768 --- /dev/null +++ b/drivers/video/backlight/vgg2432a4.c @@ -0,0 +1,284 @@ +/* drivers/video/backlight/vgg2432a4.c + * + * VGG2432A4 (ILI9320) LCD controller driver. + * + * Copyright 2007 Simtec Electronics + * http://armlinux.simtec.co.uk/ + * Ben Dooks <ben@simtec.co.uk> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#include <linux/delay.h> +#include <linux/err.h> +#include <linux/fb.h> +#include <linux/init.h> +#include <linux/lcd.h> +#include <linux/module.h> + +#include <linux/spi/spi.h> + +#include <video/ili9320.h> + +#include "ili9320.h" + +/* Device initialisation sequences */ + +static struct ili9320_reg vgg_init1[] = { + { + .address = ILI9320_POWER1, + .value = ILI9320_POWER1_AP(0) | ILI9320_POWER1_BT(0), + }, { + .address = ILI9320_POWER2, + .value = (ILI9320_POWER2_VC(7) | + ILI9320_POWER2_DC0(0) | ILI9320_POWER2_DC1(0)), + }, { + .address = ILI9320_POWER3, + .value = ILI9320_POWER3_VRH(0), + }, { + .address = ILI9320_POWER4, + .value = ILI9320_POWER4_VREOUT(0), + }, +}; + +static struct ili9320_reg vgg_init2[] = { + { + .address = ILI9320_POWER1, + .value = (ILI9320_POWER1_AP(3) | ILI9320_POWER1_APE | + ILI9320_POWER1_BT(7) | ILI9320_POWER1_SAP), + }, { + .address = ILI9320_POWER2, + .value = ILI9320_POWER2_VC(7) | ILI9320_POWER2_DC0(3), + } +}; + +static struct ili9320_reg vgg_gamma[] = { + { + .address = ILI9320_GAMMA1, + .value = 0x0000, + }, { + .address = ILI9320_GAMMA2, + .value = 0x0505, + }, { + .address = ILI9320_GAMMA3, + .value = 0x0004, + }, { + .address = ILI9320_GAMMA4, + .value = 0x0006, + }, { + .address = ILI9320_GAMMA5, + .value = 0x0707, + }, { + .address = ILI9320_GAMMA6, + .value = 0x0105, + }, { + .address = ILI9320_GAMMA7, + .value = 0x0002, + }, { + .address = ILI9320_GAMMA8, + .value = 0x0707, + }, { + .address = ILI9320_GAMMA9, + .value = 0x0704, + }, { + .address = ILI9320_GAMMA10, + .value = 0x807, + } + +}; + +static struct ili9320_reg vgg_init0[] = { + [0] = { + /* set direction and scan mode gate */ + .address = ILI9320_DRIVER, + .value = ILI9320_DRIVER_SS, + }, { + .address = ILI9320_DRIVEWAVE, + .value = (ILI9320_DRIVEWAVE_MUSTSET | + ILI9320_DRIVEWAVE_EOR | ILI9320_DRIVEWAVE_BC), + }, { + .address = ILI9320_ENTRYMODE, + .value = ILI9320_ENTRYMODE_ID(3) | ILI9320_ENTRYMODE_BGR, + }, { + .address = ILI9320_RESIZING, + .value = 0x0, + }, +}; + + +static int vgg2432a4_lcd_init(struct ili9320 *lcd, + struct ili9320_platdata *cfg) +{ + unsigned int addr; + int ret; + + /* Set VCore before anything else (VGG243237-6UFLWA) */ + ret = ili9320_write(lcd, 0x00e5, 0x8000); + if (ret) + goto err_initial; + + /* Start the oscillator up before we can do anything else. */ + ret = ili9320_write(lcd, ILI9320_OSCILATION, ILI9320_OSCILATION_OSC); + if (ret) + goto err_initial; + + /* must wait at-lesat 10ms after starting */ + mdelay(15); + + ret = ili9320_write_regs(lcd, vgg_init0, ARRAY_SIZE(vgg_init0)); + if (ret != 0) + goto err_initial; + + ili9320_write(lcd, ILI9320_DISPLAY2, cfg->display2); + ili9320_write(lcd, ILI9320_DISPLAY3, cfg->display3); + ili9320_write(lcd, ILI9320_DISPLAY4, cfg->display4); + + ili9320_write(lcd, ILI9320_RGB_IF1, cfg->rgb_if1); + ili9320_write(lcd, ILI9320_FRAMEMAKER, 0x0); + ili9320_write(lcd, ILI9320_RGB_IF2, ILI9320_RGBIF2_DPL); + + ret = ili9320_write_regs(lcd, vgg_init1, ARRAY_SIZE(vgg_init1)); + if (ret != 0) + goto err_vgg; + + mdelay(300); + + ret = ili9320_write_regs(lcd, vgg_init2, ARRAY_SIZE(vgg_init2)); + if (ret != 0) + goto err_vgg2; + + mdelay(100); + + ili9320_write(lcd, ILI9320_POWER3, 0x13c); + + mdelay(100); + + ili9320_write(lcd, ILI9320_POWER4, 0x1c00); + ili9320_write(lcd, ILI9320_POWER7, 0x000e); + + mdelay(100); + + ili9320_write(lcd, ILI9320_GRAM_HORIZ_ADDR, 0x00); + ili9320_write(lcd, ILI9320_GRAM_VERT_ADD, 0x00); + + ret = ili9320_write_regs(lcd, vgg_gamma, ARRAY_SIZE(vgg_gamma)); + if (ret != 0) + goto err_vgg3; + + ili9320_write(lcd, ILI9320_HORIZ_START, 0x0); + ili9320_write(lcd, ILI9320_HORIZ_END, cfg->hsize - 1); + ili9320_write(lcd, ILI9320_VERT_START, 0x0); + ili9320_write(lcd, ILI9320_VERT_END, cfg->vsize - 1); + + ili9320_write(lcd, ILI9320_DRIVER2, + ILI9320_DRIVER2_NL(((cfg->vsize - 240) / 8) + 0x1D)); + + ili9320_write(lcd, ILI9320_BASE_IMAGE, 0x1); + ili9320_write(lcd, ILI9320_VERT_SCROLL, 0x00); + + for (addr = ILI9320_PARTIAL1_POSITION; addr <= ILI9320_PARTIAL2_END; + addr++) { + ili9320_write(lcd, addr, 0x0); + } + + ili9320_write(lcd, ILI9320_INTERFACE1, 0x10); + ili9320_write(lcd, ILI9320_INTERFACE2, cfg->interface2); + ili9320_write(lcd, ILI9320_INTERFACE3, cfg->interface3); + ili9320_write(lcd, ILI9320_INTERFACE4, cfg->interface4); + ili9320_write(lcd, ILI9320_INTERFACE5, cfg->interface5); + ili9320_write(lcd, ILI9320_INTERFACE6, cfg->interface6); + + lcd->display1 = (ILI9320_DISPLAY1_D(3) | ILI9320_DISPLAY1_DTE | + ILI9320_DISPLAY1_GON | ILI9320_DISPLAY1_BASEE | + 0x40); + + ili9320_write(lcd, ILI9320_DISPLAY1, lcd->display1); + + return 0; + + err_vgg3: + err_vgg2: + err_vgg: + err_initial: + return ret; +} + +#ifdef CONFIG_PM +static int vgg2432a4_suspend(struct spi_device *spi, pm_message_t state) +{ + return ili9320_suspend(dev_get_drvdata(&spi->dev), state); +} + +static int vgg2432a4_resume(struct spi_device *spi) +{ + return ili9320_resume(dev_get_drvdata(&spi->dev)); +} +#else +#define vgg2432a4_suspend NULL +#define vgg2432a4_resume NULL +#endif + +static struct ili9320_client vgg2432a4_client = { + .name = "VGG2432A4", + .init = vgg2432a4_lcd_init, +}; + +/* Device probe */ + +static int __devinit vgg2432a4_probe(struct spi_device *spi) +{ + int ret; + + ret = ili9320_probe_spi(spi, &vgg2432a4_client); + if (ret != 0) { + dev_err(&spi->dev, "failed to initialise ili9320\n"); + return ret; + } + + return 0; +} + +static int __devexit vgg2432a4_remove(struct spi_device *spi) +{ + return ili9320_remove(dev_get_drvdata(&spi->dev)); +} + +static void vgg2432a4_shutdown(struct spi_device *spi) +{ + ili9320_shutdown(dev_get_drvdata(&spi->dev)); +} + +static struct spi_driver vgg2432a4_driver = { + .driver = { + .name = "VGG2432A4", + .owner = THIS_MODULE, + }, + .probe = vgg2432a4_probe, + .remove = __devexit_p(vgg2432a4_remove), + .shutdown = vgg2432a4_shutdown, + .suspend = vgg2432a4_suspend, + .resume = vgg2432a4_resume, +}; + +/* Device driver initialisation */ + +static int __init vgg2432a4_init(void) +{ + return spi_register_driver(&vgg2432a4_driver); +} + +static void __exit vgg2432a4_exit(void) +{ + spi_unregister_driver(&vgg2432a4_driver); +} + +module_init(vgg2432a4_init); +module_exit(vgg2432a4_exit); + +MODULE_AUTHOR("Ben Dooks <ben-linux@fluff.org>"); +MODULE_DESCRIPTION("VGG2432A4 LCD Driver"); +MODULE_LICENSE("GPL v2"); + + diff --git a/drivers/video/bf54x-lq043fb.c b/drivers/video/bf54x-lq043fb.c index 49834a6..940467a 100644 --- a/drivers/video/bf54x-lq043fb.c +++ b/drivers/video/bf54x-lq043fb.c @@ -478,7 +478,7 @@ static int bfin_lcd_set_contrast(struct lcd_device *dev, int contrast) return 0; } -static int bfin_lcd_check_fb(struct fb_info *fi) +static int bfin_lcd_check_fb(struct lcd_device *dev, struct fb_info *fi) { if (!fi || (fi == &bfin_bf54x_fb)) return 1; diff --git a/drivers/video/bfin-t350mcqb-fb.c b/drivers/video/bfin-t350mcqb-fb.c index 135d6dd..7d1b819 100644 --- a/drivers/video/bfin-t350mcqb-fb.c +++ b/drivers/video/bfin-t350mcqb-fb.c @@ -396,7 +396,7 @@ static int bfin_lcd_set_contrast(struct lcd_device *dev, int contrast) return 0; } -static int bfin_lcd_check_fb(struct fb_info *fi) +static int bfin_lcd_check_fb(struct lcd_device *dev, struct fb_info *fi) { if (!fi || (fi == &bfin_t350mcqb_fb)) return 1; diff --git a/drivers/video/carminefb.c b/drivers/video/carminefb.c new file mode 100644 index 0000000..e15bb44 --- /dev/null +++ b/drivers/video/carminefb.c @@ -0,0 +1,790 @@ +/* + * Frame buffer driver for the Carmine GPU. + * + * The driver configures the GPU as follows + * - FB0 is display 0 with unique memory area + * - FB1 is display 1 with unique memory area + * - both display use 32 bit colors + */ +#include <linux/delay.h> +#include <linux/errno.h> +#include <linux/fb.h> +#include <linux/interrupt.h> +#include <linux/pci.h> + +#include "carminefb.h" +#include "carminefb_regs.h" + +#if !defined(__LITTLE_ENDIAN) && !defined(__BIG_ENDIAN) +#error "The endianness of the target host has not been defined." +#endif + +/* + * The initial video mode can be supplied via two different ways: + * - as a string that is passed to fb_find_mode() (module option fb_mode_str) + * - as an integer that picks the video mode from carmine_modedb[] (module + * option fb_mode) + * + * If nothing is used than the initial video mode will be the + * CARMINEFB_DEFAULT_VIDEO_MODE member of the carmine_modedb[]. + */ +#define CARMINEFB_DEFAULT_VIDEO_MODE 1 + +static unsigned int fb_mode = CARMINEFB_DEFAULT_VIDEO_MODE; +module_param(fb_mode, uint, 444); +MODULE_PARM_DESC(fb_mode, "Initial video mode as integer."); + +static char *fb_mode_str; +module_param(fb_mode_str, charp, 444); +MODULE_PARM_DESC(fb_mode_str, "Initial video mode in characters."); + +/* + * Carminefb displays: + * 0b000 None + * 0b001 Display 0 + * 0b010 Display 1 + */ +static int fb_displays = CARMINE_USE_DISPLAY0 | CARMINE_USE_DISPLAY1; +module_param(fb_displays, int, 444); +MODULE_PARM_DESC(fb_displays, "Bit mode, which displays are used"); + +struct carmine_hw { + void __iomem *v_regs; + void __iomem *screen_mem; + struct fb_info *fb[MAX_DISPLAY]; +}; + +struct carmine_resolution { + u32 htp; + u32 hsp; + u32 hsw; + u32 hdp; + u32 vtr; + u32 vsp; + u32 vsw; + u32 vdp; + u32 disp_mode; +}; + +struct carmine_fb { + void __iomem *display_reg; + void __iomem *screen_base; + u32 smem_offset; + u32 cur_mode; + u32 new_mode; + struct carmine_resolution *res; + u32 pseudo_palette[16]; +}; + +static struct fb_fix_screeninfo carminefb_fix __devinitdata = { + .id = "Carmine", + .type = FB_TYPE_PACKED_PIXELS, + .visual = FB_VISUAL_TRUECOLOR, + .accel = FB_ACCEL_NONE, +}; + +static const struct fb_videomode carmine_modedb[] = { + { + .name = "640x480", + .xres = 640, + .yres = 480, + }, { + .name = "800x600", + .xres = 800, + .yres = 600, + }, +}; + +static struct carmine_resolution car_modes[] = { + { + /* 640x480 */ + .htp = 800, + .hsp = 672, + .hsw = 96, + .hdp = 640, + .vtr = 525, + .vsp = 490, + .vsw = 2, + .vdp = 480, + .disp_mode = 0x1400, + }, + { + /* 800x600 */ + .htp = 1060, + .hsp = 864, + .hsw = 72, + .hdp = 800, + .vtr = 628, + .vsp = 601, + .vsw = 2, + .vdp = 600, + .disp_mode = 0x0d00, + } +}; + +static int carmine_find_mode(const struct fb_var_screeninfo *var) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(car_modes); i++) + if (car_modes[i].hdp == var->xres && + car_modes[i].vdp == var->yres) + return i; + return -EINVAL; +} + +static void c_set_disp_reg(const struct carmine_fb *par, + u32 offset, u32 val) +{ + writel(val, par->display_reg + offset); +} + +static u32 c_get_disp_reg(const struct carmine_fb *par, + u32 offset) +{ + return readl(par->display_reg + offset); +} + +static void c_set_hw_reg(const struct carmine_hw *hw, + u32 offset, u32 val) +{ + writel(val, hw->v_regs + offset); +} + +static u32 c_get_hw_reg(const struct carmine_hw *hw, + u32 offset) +{ + return readl(hw->v_regs + offset); +} + +static int carmine_setcolreg(unsigned regno, unsigned red, unsigned green, + unsigned blue, unsigned transp, struct fb_info *info) +{ + if (regno >= 16) + return 1; + + red >>= 8; + green >>= 8; + blue >>= 8; + transp >>= 8; + + ((u32 *)info->pseudo_palette)[regno] = be32_to_cpu(transp << 24 | + red << 0 | green << 8 | blue << 16); + return 0; +} + +static int carmine_check_var(struct fb_var_screeninfo *var, + struct fb_info *info) +{ + int ret; + + ret = carmine_find_mode(var); + if (ret < 0) + return ret; + + if (var->grayscale || var->rotate || var->nonstd) + return -EINVAL; + + var->xres_virtual = var->xres; + var->yres_virtual = var->yres; + + var->bits_per_pixel = 32; + +#ifdef __BIG_ENDIAN + var->transp.offset = 24; + var->red.offset = 0; + var->green.offset = 8; + var->blue.offset = 16; +#else + var->transp.offset = 24; + var->red.offset = 16; + var->green.offset = 8; + var->blue.offset = 0; +#endif + + var->red.length = 8; + var->green.length = 8; + var->blue.length = 8; + var->transp.length = 8; + + var->red.msb_right = 0; + var->green.msb_right = 0; + var->blue.msb_right = 0; + var->transp.msb_right = 0; + return 0; +} + +static void carmine_init_display_param(struct carmine_fb *par) +{ + u32 width; + u32 height; + u32 param; + u32 window_size; + u32 soffset = par->smem_offset; + + c_set_disp_reg(par, CARMINE_DISP_REG_C_TRANS, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_MLMR_TRANS, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_CURSOR_MODE, + CARMINE_CURSOR0_PRIORITY_MASK | + CARMINE_CURSOR1_PRIORITY_MASK | + CARMINE_CURSOR_CUTZ_MASK); + + /* Set default cursor position */ + c_set_disp_reg(par, CARMINE_DISP_REG_CUR1_POS, 0 << 16 | 0); + c_set_disp_reg(par, CARMINE_DISP_REG_CUR2_POS, 0 << 16 | 0); + + /* Set default display mode */ + c_set_disp_reg(par, CARMINE_DISP_REG_L0_EXT_MODE, CARMINE_WINDOW_MODE | + CARMINE_EXT_CMODE_DIRECT24_RGBA); + c_set_disp_reg(par, CARMINE_DISP_REG_L1_EXT_MODE, + CARMINE_EXT_CMODE_DIRECT24_RGBA); + c_set_disp_reg(par, CARMINE_DISP_REG_L2_EXT_MODE, CARMINE_EXTEND_MODE | + CARMINE_EXT_CMODE_DIRECT24_RGBA); + c_set_disp_reg(par, CARMINE_DISP_REG_L3_EXT_MODE, CARMINE_EXTEND_MODE | + CARMINE_EXT_CMODE_DIRECT24_RGBA); + c_set_disp_reg(par, CARMINE_DISP_REG_L4_EXT_MODE, CARMINE_EXTEND_MODE | + CARMINE_EXT_CMODE_DIRECT24_RGBA); + c_set_disp_reg(par, CARMINE_DISP_REG_L5_EXT_MODE, CARMINE_EXTEND_MODE | + CARMINE_EXT_CMODE_DIRECT24_RGBA); + c_set_disp_reg(par, CARMINE_DISP_REG_L6_EXT_MODE, CARMINE_EXTEND_MODE | + CARMINE_EXT_CMODE_DIRECT24_RGBA); + c_set_disp_reg(par, CARMINE_DISP_REG_L7_EXT_MODE, CARMINE_EXTEND_MODE | + CARMINE_EXT_CMODE_DIRECT24_RGBA); + + /* Set default frame size to layer mode register */ + width = par->res->hdp * 4 / CARMINE_DISP_WIDTH_UNIT; + width = width << CARMINE_DISP_WIDTH_SHIFT; + + height = par->res->vdp - 1; + param = width | height; + + c_set_disp_reg(par, CARMINE_DISP_REG_L0_MODE_W_H, param); + c_set_disp_reg(par, CARMINE_DISP_REG_L1_WIDTH, width); + c_set_disp_reg(par, CARMINE_DISP_REG_L2_MODE_W_H, param); + c_set_disp_reg(par, CARMINE_DISP_REG_L3_MODE_W_H, param); + c_set_disp_reg(par, CARMINE_DISP_REG_L4_MODE_W_H, param); + c_set_disp_reg(par, CARMINE_DISP_REG_L5_MODE_W_H, param); + c_set_disp_reg(par, CARMINE_DISP_REG_L6_MODE_W_H, param); + c_set_disp_reg(par, CARMINE_DISP_REG_L7_MODE_W_H, param); + + /* Set default pos and size */ + window_size = (par->res->vdp - 1) << CARMINE_DISP_WIN_H_SHIFT; + window_size |= par->res->hdp; + + c_set_disp_reg(par, CARMINE_DISP_REG_L0_WIN_POS, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L0_WIN_SIZE, window_size); + c_set_disp_reg(par, CARMINE_DISP_REG_L1_WIN_POS, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L1_WIN_SIZE, window_size); + c_set_disp_reg(par, CARMINE_DISP_REG_L2_WIN_POS, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L2_WIN_SIZE, window_size); + c_set_disp_reg(par, CARMINE_DISP_REG_L3_WIN_POS, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L3_WIN_SIZE, window_size); + c_set_disp_reg(par, CARMINE_DISP_REG_L4_WIN_POS, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L4_WIN_SIZE, window_size); + c_set_disp_reg(par, CARMINE_DISP_REG_L5_WIN_POS, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L5_WIN_SIZE, window_size); + c_set_disp_reg(par, CARMINE_DISP_REG_L6_WIN_POS, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L6_WIN_SIZE, window_size); + c_set_disp_reg(par, CARMINE_DISP_REG_L7_WIN_POS, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L7_WIN_SIZE, window_size); + + /* Set default origin address */ + c_set_disp_reg(par, CARMINE_DISP_REG_L0_ORG_ADR, soffset); + c_set_disp_reg(par, CARMINE_DISP_REG_L1_ORG_ADR, soffset); + c_set_disp_reg(par, CARMINE_DISP_REG_L2_ORG_ADR1, soffset); + c_set_disp_reg(par, CARMINE_DISP_REG_L3_ORG_ADR1, soffset); + c_set_disp_reg(par, CARMINE_DISP_REG_L4_ORG_ADR1, soffset); + c_set_disp_reg(par, CARMINE_DISP_REG_L5_ORG_ADR1, soffset); + c_set_disp_reg(par, CARMINE_DISP_REG_L6_ORG_ADR1, soffset); + c_set_disp_reg(par, CARMINE_DISP_REG_L7_ORG_ADR1, soffset); + + /* Set default display address */ + c_set_disp_reg(par, CARMINE_DISP_REG_L0_DISP_ADR, soffset); + c_set_disp_reg(par, CARMINE_DISP_REG_L2_DISP_ADR1, soffset); + c_set_disp_reg(par, CARMINE_DISP_REG_L3_DISP_ADR1, soffset); + c_set_disp_reg(par, CARMINE_DISP_REG_L4_DISP_ADR1, soffset); + c_set_disp_reg(par, CARMINE_DISP_REG_L5_DISP_ADR1, soffset); + c_set_disp_reg(par, CARMINE_DISP_REG_L6_DISP_ADR0, soffset); + c_set_disp_reg(par, CARMINE_DISP_REG_L7_DISP_ADR0, soffset); + + /* Set default display position */ + c_set_disp_reg(par, CARMINE_DISP_REG_L0_DISP_POS, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L2_DISP_POS, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L3_DISP_POS, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L4_DISP_POS, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L5_DISP_POS, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L6_DISP_POS, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L7_DISP_POS, 0); + + /* Set default blend mode */ + c_set_disp_reg(par, CARMINE_DISP_REG_BLEND_MODE_L0, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_BLEND_MODE_L1, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_BLEND_MODE_L2, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_BLEND_MODE_L3, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_BLEND_MODE_L4, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_BLEND_MODE_L5, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_BLEND_MODE_L6, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_BLEND_MODE_L7, 0); + + /* default transparency mode */ + c_set_disp_reg(par, CARMINE_DISP_REG_L0_TRANS, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L1_TRANS, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L2_TRANS, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L3_TRANS, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L4_TRANS, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L5_TRANS, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L6_TRANS, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L7_TRANS, 0); + + /* Set default read skip parameter */ + c_set_disp_reg(par, CARMINE_DISP_REG_L0RM, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L2RM, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L3RM, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L4RM, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L5RM, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L6RM, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L7RM, 0); + + c_set_disp_reg(par, CARMINE_DISP_REG_L0PX, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L2PX, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L3PX, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L4PX, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L5PX, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L6PX, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L7PX, 0); + + c_set_disp_reg(par, CARMINE_DISP_REG_L0PY, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L2PY, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L3PY, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L4PY, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L5PY, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L6PY, 0); + c_set_disp_reg(par, CARMINE_DISP_REG_L7PY, 0); +} + +static void set_display_parameters(struct carmine_fb *par) +{ + u32 mode; + u32 hdp, vdp, htp, hsp, hsw, vtr, vsp, vsw; + + /* + * display timing. Parameters are decreased by one because hardware + * spec is 0 to (n - 1) + * */ + hdp = par->res->hdp - 1; + vdp = par->res->vdp - 1; + htp = par->res->htp - 1; + hsp = par->res->hsp - 1; + hsw = par->res->hsw - 1; + vtr = par->res->vtr - 1; + vsp = par->res->vsp - 1; + vsw = par->res->vsw - 1; + + c_set_disp_reg(par, CARMINE_DISP_REG_H_TOTAL, + htp << CARMINE_DISP_HTP_SHIFT); + c_set_disp_reg(par, CARMINE_DISP_REG_H_PERIOD, + (hdp << CARMINE_DISP_HDB_SHIFT) | hdp); + c_set_disp_reg(par, CARMINE_DISP_REG_V_H_W_H_POS, + (vsw << CARMINE_DISP_VSW_SHIFT) | + (hsw << CARMINE_DISP_HSW_SHIFT) | + (hsp)); + c_set_disp_reg(par, CARMINE_DISP_REG_V_TOTAL, + vtr << CARMINE_DISP_VTR_SHIFT); + c_set_disp_reg(par, CARMINE_DISP_REG_V_PERIOD_POS, + (vdp << CARMINE_DISP_VDP_SHIFT) | vsp); + + /* clock */ + mode = c_get_disp_reg(par, CARMINE_DISP_REG_DCM1); + mode = (mode & ~CARMINE_DISP_DCM_MASK) | + (par->res->disp_mode & CARMINE_DISP_DCM_MASK); + /* enable video output and layer 0 */ + mode |= CARMINE_DEN | CARMINE_L0E; + c_set_disp_reg(par, CARMINE_DISP_REG_DCM1, mode); +} + +static int carmine_set_par(struct fb_info *info) +{ + struct carmine_fb *par = info->par; + int ret; + + ret = carmine_find_mode(&info->var); + if (ret < 0) + return ret; + + par->new_mode = ret; + if (par->cur_mode != par->new_mode) { + + par->cur_mode = par->new_mode; + par->res = &car_modes[par->new_mode]; + + carmine_init_display_param(par); + set_display_parameters(par); + } + + info->fix.line_length = info->var.xres * info->var.bits_per_pixel / 8; + return 0; +} + +static int init_hardware(struct carmine_hw *hw) +{ + u32 flags; + u32 loops; + u32 ret; + + /* Initalize Carmine */ + /* Sets internal clock */ + c_set_hw_reg(hw, CARMINE_CTL_REG + CARMINE_CTL_REG_CLOCK_ENABLE, + CARMINE_DFLT_IP_CLOCK_ENABLE); + + /* Video signal output is turned off */ + c_set_hw_reg(hw, CARMINE_DISP0_REG + CARMINE_DISP_REG_DCM1, 0); + c_set_hw_reg(hw, CARMINE_DISP1_REG + CARMINE_DISP_REG_DCM1, 0); + + /* Software reset */ + c_set_hw_reg(hw, CARMINE_CTL_REG + CARMINE_CTL_REG_SOFTWARE_RESET, 1); + c_set_hw_reg(hw, CARMINE_CTL_REG + CARMINE_CTL_REG_SOFTWARE_RESET, 0); + + /* I/O mode settings */ + flags = CARMINE_DFLT_IP_DCTL_IO_CONT1 << 16 | + CARMINE_DFLT_IP_DCTL_IO_CONT0; + c_set_hw_reg(hw, CARMINE_DCTL_REG + CARMINE_DCTL_REG_IOCONT1_IOCONT0, + flags); + + /* DRAM initial sequence */ + flags = CARMINE_DFLT_IP_DCTL_MODE << 16 | CARMINE_DFLT_IP_DCTL_ADD; + c_set_hw_reg(hw, CARMINE_DCTL_REG + CARMINE_DCTL_REG_MODE_ADD, + flags); + + flags = CARMINE_DFLT_IP_DCTL_SET_TIME1 << 16 | + CARMINE_DFLT_IP_DCTL_EMODE; + c_set_hw_reg(hw, CARMINE_DCTL_REG + CARMINE_DCTL_REG_SETTIME1_EMODE, + flags); + + flags = CARMINE_DFLT_IP_DCTL_REFRESH << 16 | + CARMINE_DFLT_IP_DCTL_SET_TIME2; + c_set_hw_reg(hw, CARMINE_DCTL_REG + CARMINE_DCTL_REG_REFRESH_SETTIME2, + flags); + + flags = CARMINE_DFLT_IP_DCTL_RESERVE2 << 16 | + CARMINE_DFLT_IP_DCTL_FIFO_DEPTH; + c_set_hw_reg(hw, CARMINE_DCTL_REG + CARMINE_DCTL_REG_RSV2_RSV1, flags); + + flags = CARMINE_DFLT_IP_DCTL_DDRIF2 << 16 | CARMINE_DFLT_IP_DCTL_DDRIF1; + c_set_hw_reg(hw, CARMINE_DCTL_REG + CARMINE_DCTL_REG_DDRIF2_DDRIF1, + flags); + + flags = CARMINE_DFLT_IP_DCTL_RESERVE0 << 16 | + CARMINE_DFLT_IP_DCTL_STATES; + c_set_hw_reg(hw, CARMINE_DCTL_REG + CARMINE_DCTL_REG_RSV0_STATES, + flags); + + /* Executes DLL reset */ + if (CARMINE_DCTL_DLL_RESET) { + for (loops = 0; loops < CARMINE_DCTL_INIT_WAIT_LIMIT; loops++) { + + ret = c_get_hw_reg(hw, CARMINE_DCTL_REG + + CARMINE_DCTL_REG_RSV0_STATES); + ret &= CARMINE_DCTL_REG_STATES_MASK; + if (!ret) + break; + + mdelay(CARMINE_DCTL_INIT_WAIT_INTERVAL); + } + + if (loops >= CARMINE_DCTL_INIT_WAIT_LIMIT) { + printk(KERN_ERR "DRAM init failed\n"); + return -EIO; + } + } + + flags = CARMINE_DFLT_IP_DCTL_MODE_AFT_RST << 16 | + CARMINE_DFLT_IP_DCTL_ADD; + c_set_hw_reg(hw, CARMINE_DCTL_REG + CARMINE_DCTL_REG_MODE_ADD, flags); + + flags = CARMINE_DFLT_IP_DCTL_RESERVE0 << 16 | + CARMINE_DFLT_IP_DCTL_STATES_AFT_RST; + c_set_hw_reg(hw, CARMINE_DCTL_REG + CARMINE_DCTL_REG_RSV0_STATES, + flags); + + /* Initialize the write back register */ + c_set_hw_reg(hw, CARMINE_WB_REG + CARMINE_WB_REG_WBM, + CARMINE_WB_REG_WBM_DEFAULT); + + /* Initialize the Kottos registers */ + c_set_hw_reg(hw, CARMINE_GRAPH_REG + CARMINE_GRAPH_REG_VRINTM, 0); + c_set_hw_reg(hw, CARMINE_GRAPH_REG + CARMINE_GRAPH_REG_VRERRM, 0); + + /* Set DC offsets */ + c_set_hw_reg(hw, CARMINE_GRAPH_REG + CARMINE_GRAPH_REG_DC_OFFSET_PX, 0); + c_set_hw_reg(hw, CARMINE_GRAPH_REG + CARMINE_GRAPH_REG_DC_OFFSET_PY, 0); + c_set_hw_reg(hw, CARMINE_GRAPH_REG + CARMINE_GRAPH_REG_DC_OFFSET_LX, 0); + c_set_hw_reg(hw, CARMINE_GRAPH_REG + CARMINE_GRAPH_REG_DC_OFFSET_LY, 0); + c_set_hw_reg(hw, CARMINE_GRAPH_REG + CARMINE_GRAPH_REG_DC_OFFSET_TX, 0); + c_set_hw_reg(hw, CARMINE_GRAPH_REG + CARMINE_GRAPH_REG_DC_OFFSET_TY, 0); + return 0; +} + +static struct fb_ops carminefb_ops = { + .owner = THIS_MODULE, + .fb_fillrect = cfb_fillrect, + .fb_copyarea = cfb_copyarea, + .fb_imageblit = cfb_imageblit, + + .fb_check_var = carmine_check_var, + .fb_set_par = carmine_set_par, + .fb_setcolreg = carmine_setcolreg, +}; + +static int alloc_carmine_fb(void __iomem *regs, void __iomem *smem_base, + int smem_offset, struct device *device, struct fb_info **rinfo) +{ + int ret; + struct fb_info *info; + struct carmine_fb *par; + + info = framebuffer_alloc(sizeof *par, device); + if (!info) + return -ENOMEM; + + par = info->par; + par->display_reg = regs; + par->smem_offset = smem_offset; + + info->screen_base = smem_base + smem_offset; + info->screen_size = CARMINE_DISPLAY_MEM; + info->fbops = &carminefb_ops; + + info->fix = carminefb_fix; + info->pseudo_palette = par->pseudo_palette; + info->flags = FBINFO_DEFAULT; + + ret = fb_alloc_cmap(&info->cmap, 256, 1); + if (ret < 0) + goto err_free_fb; + + if (fb_mode > ARRAY_SIZE(carmine_modedb)) + fb_mode = CARMINEFB_DEFAULT_VIDEO_MODE; + + par->cur_mode = par->new_mode = ~0; + + ret = fb_find_mode(&info->var, info, fb_mode_str, carmine_modedb, + ARRAY_SIZE(carmine_modedb), + &carmine_modedb[fb_mode], 32); + if (!ret || ret == 4) { + ret = -EINVAL; + goto err_dealloc_cmap; + } + + fb_videomode_to_modelist(carmine_modedb, ARRAY_SIZE(carmine_modedb), + &info->modelist); + + ret = register_framebuffer(info); + if (ret < 0) + goto err_dealloc_cmap; + + printk(KERN_INFO "fb%d: %s frame buffer device\n", info->node, + info->fix.id); + + *rinfo = info; + return 0; + +err_dealloc_cmap: + fb_dealloc_cmap(&info->cmap); +err_free_fb: + framebuffer_release(info); + return ret; +} + +static void cleanup_fb_device(struct fb_info *info) +{ + if (info) { + unregister_framebuffer(info); + fb_dealloc_cmap(&info->cmap); + framebuffer_release(info); + } +} + +static int __devinit carminefb_probe(struct pci_dev *dev, + const struct pci_device_id *ent) +{ + struct carmine_hw *hw; + struct device *device = &dev->dev; + struct fb_info *info; + int ret; + + ret = pci_enable_device(dev); + if (ret) + return ret; + + ret = -ENOMEM; + hw = kzalloc(sizeof *hw, GFP_KERNEL); + if (!hw) + goto err_enable_pci; + + carminefb_fix.mmio_start = pci_resource_start(dev, CARMINE_CONFIG_BAR); + carminefb_fix.mmio_len = pci_resource_len(dev, CARMINE_CONFIG_BAR); + + if (!request_mem_region(carminefb_fix.mmio_start, + carminefb_fix.mmio_len, + "carminefb regbase")) { + printk(KERN_ERR "carminefb: Can't reserve regbase.\n"); + ret = -EBUSY; + goto err_free_hw; + } + hw->v_regs = ioremap_nocache(carminefb_fix.mmio_start, + carminefb_fix.mmio_len); + if (!hw->v_regs) { + printk(KERN_ERR "carminefb: Can't remap %s register.\n", + carminefb_fix.id); + goto err_free_reg_mmio; + } + + carminefb_fix.smem_start = pci_resource_start(dev, CARMINE_MEMORY_BAR); + carminefb_fix.smem_len = pci_resource_len(dev, CARMINE_MEMORY_BAR); + + /* The memory area tends to be very large (256 MiB). Remap only what + * is required for that largest resolution to avoid remaps at run + * time + */ + if (carminefb_fix.smem_len > CARMINE_TOTAL_DIPLAY_MEM) + carminefb_fix.smem_len = CARMINE_TOTAL_DIPLAY_MEM; + + else if (carminefb_fix.smem_len < CARMINE_TOTAL_DIPLAY_MEM) { + printk(KERN_ERR "carminefb: Memory bar is only %d bytes, %d " + "are required.", carminefb_fix.smem_len, + CARMINE_TOTAL_DIPLAY_MEM); + goto err_free_reg_mmio; + } + + if (!request_mem_region(carminefb_fix.smem_start, + carminefb_fix.smem_len, "carminefb smem")) { + printk(KERN_ERR "carminefb: Can't reserve smem.\n"); + goto err_unmap_vregs; + } + + hw->screen_mem = ioremap_nocache(carminefb_fix.smem_start, + carminefb_fix.smem_len); + if (!hw->screen_mem) { + printk(KERN_ERR "carmine: Can't ioremap smem area.\n"); + release_mem_region(carminefb_fix.smem_start, + carminefb_fix.smem_len); + goto err_reg_smem; + } + + ret = init_hardware(hw); + if (ret) + goto err_unmap_screen; + + info = NULL; + if (fb_displays & CARMINE_USE_DISPLAY0) { + ret = alloc_carmine_fb(hw->v_regs + CARMINE_DISP0_REG, + hw->screen_mem, CARMINE_DISPLAY_MEM * 0, + device, &info); + if (ret) + goto err_deinit_hw; + } + + hw->fb[0] = info; + + info = NULL; + if (fb_displays & CARMINE_USE_DISPLAY1) { + ret = alloc_carmine_fb(hw->v_regs + CARMINE_DISP1_REG, + hw->screen_mem, CARMINE_DISPLAY_MEM * 1, + device, &info); + if (ret) + goto err_cleanup_fb0; + } + + hw->fb[1] = info; + info = NULL; + + pci_set_drvdata(dev, hw); + return 0; + +err_cleanup_fb0: + cleanup_fb_device(hw->fb[0]); +err_deinit_hw: + /* disable clock, etc */ + c_set_hw_reg(hw, CARMINE_CTL_REG + CARMINE_CTL_REG_CLOCK_ENABLE, 0); +err_unmap_screen: + iounmap(hw->screen_mem); +err_reg_smem: + release_mem_region(carminefb_fix.mmio_start, carminefb_fix.mmio_len); +err_unmap_vregs: + iounmap(hw->v_regs); +err_free_reg_mmio: + release_mem_region(carminefb_fix.mmio_start, carminefb_fix.mmio_len); +err_free_hw: + kfree(hw); +err_enable_pci: + pci_disable_device(dev); + return ret; +} + +static void __devexit carminefb_remove(struct pci_dev *dev) +{ + struct carmine_hw *hw = pci_get_drvdata(dev); + struct fb_fix_screeninfo fix; + int i; + + /* in case we use only fb1 and not fb1 */ + if (hw->fb[0]) + fix = hw->fb[0]->fix; + else + fix = hw->fb[1]->fix; + + /* deactivate display(s) and switch clocks */ + c_set_hw_reg(hw, CARMINE_DISP0_REG + CARMINE_DISP_REG_DCM1, 0); + c_set_hw_reg(hw, CARMINE_DISP1_REG + CARMINE_DISP_REG_DCM1, 0); + c_set_hw_reg(hw, CARMINE_CTL_REG + CARMINE_CTL_REG_CLOCK_ENABLE, 0); + + for (i = 0; i < MAX_DISPLAY; i++) + cleanup_fb_device(hw->fb[i]); + + iounmap(hw->screen_mem); + release_mem_region(fix.smem_start, fix.smem_len); + iounmap(hw->v_regs); + release_mem_region(fix.mmio_start, fix.mmio_len); + + pci_set_drvdata(dev, NULL); + pci_disable_device(dev); + kfree(hw); +} + +#define PCI_VENDOR_ID_FUJITU_LIMITED 0x10cf +static struct pci_device_id carmine_devices[] __devinitdata = { +{ + PCI_DEVICE(PCI_VENDOR_ID_FUJITU_LIMITED, 0x202b)}, + {0, 0, 0, 0, 0, 0, 0} +}; + +MODULE_DEVICE_TABLE(pci, carmine_devices); + +static struct pci_driver carmine_pci_driver = { + .name = "carminefb", + .id_table = carmine_devices, + .probe = carminefb_probe, + .remove = __devexit_p(carminefb_remove), +}; + +static int __init carminefb_init(void) +{ + if (!(fb_displays & + (CARMINE_USE_DISPLAY0 | CARMINE_USE_DISPLAY1))) { + printk(KERN_ERR "If you disable both displays than you don't " + "need the driver at all\n"); + return -EINVAL; + } + return pci_register_driver(&carmine_pci_driver); +} +module_init(carminefb_init); + +static void __exit carminefb_cleanup(void) +{ + pci_unregister_driver(&carmine_pci_driver); +} +module_exit(carminefb_cleanup); + +MODULE_AUTHOR("Sebastian Siewior <bigeasy@linutronix.de>"); +MODULE_DESCRIPTION("Framebuffer driver for Fujitsu Carmine based devices"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/video/carminefb.h b/drivers/video/carminefb.h new file mode 100644 index 0000000..05306de --- /dev/null +++ b/drivers/video/carminefb.h @@ -0,0 +1,64 @@ +#ifndef CARMINE_CARMINE_H +#define CARMINE_CARMINE_H + +#define CARMINE_MEMORY_BAR 2 +#define CARMINE_CONFIG_BAR 3 + +#define MAX_DISPLAY 2 +#define CARMINE_DISPLAY_MEM (800 * 600 * 4) +#define CARMINE_TOTAL_DIPLAY_MEM (CARMINE_DISPLAY_MEM * MAX_DISPLAY) + +#define CARMINE_USE_DISPLAY0 (1 << 0) +#define CARMINE_USE_DISPLAY1 (1 << 1) + +/* + * This values work on the eval card. Custom boards may use different timings, + * here an example :) + */ + +/* DRAM initialization values */ +#ifdef CONFIG_FB_CARMINE_DRAM_EVAL + +#define CARMINE_DFLT_IP_CLOCK_ENABLE (0x03ff) +#define CARMINE_DFLT_IP_DCTL_ADD (0x05c3) +#define CARMINE_DFLT_IP_DCTL_MODE (0x0121) +#define CARMINE_DFLT_IP_DCTL_EMODE (0x8000) +#define CARMINE_DFLT_IP_DCTL_SET_TIME1 (0x4749) +#define CARMINE_DFLT_IP_DCTL_SET_TIME2 (0x2a22) +#define CARMINE_DFLT_IP_DCTL_REFRESH (0x0042) +#define CARMINE_DFLT_IP_DCTL_STATES (0x0003) +#define CARMINE_DFLT_IP_DCTL_RESERVE0 (0x0020) +#define CARMINE_DFLT_IP_DCTL_FIFO_DEPTH (0x000f) +#define CARMINE_DFLT_IP_DCTL_RESERVE2 (0x0000) +#define CARMINE_DFLT_IP_DCTL_DDRIF1 (0x6646) +#define CARMINE_DFLT_IP_DCTL_DDRIF2 (0x0055) +#define CARMINE_DFLT_IP_DCTL_MODE_AFT_RST (0x0021) +#define CARMINE_DFLT_IP_DCTL_STATES_AFT_RST (0x0002) +#define CARMINE_DFLT_IP_DCTL_IO_CONT0 (0x0555) +#define CARMINE_DFLT_IP_DCTL_IO_CONT1 (0x0555) +#define CARMINE_DCTL_DLL_RESET (1) +#endif + +#ifdef CONFIG_CARMINE_DRAM_CUSTOM + +#define CARMINE_DFLT_IP_CLOCK_ENABLE (0x03ff) +#define CARMINE_DFLT_IP_DCTL_ADD (0x03b2) +#define CARMINE_DFLT_IP_DCTL_MODE (0x0161) +#define CARMINE_DFLT_IP_DCTL_EMODE (0x8000) +#define CARMINE_DFLT_IP_DCTL_SET_TIME1 (0x2628) +#define CARMINE_DFLT_IP_DCTL_SET_TIME2 (0x1a09) +#define CARMINE_DFLT_IP_DCTL_REFRESH (0x00fe) +#define CARMINE_DFLT_IP_DCTL_STATES (0x0003) +#define CARMINE_DFLT_IP_DCTL_RESERVE0 (0x0020) +#define CARMINE_DFLT_IP_DCTL_FIFO_DEPTH (0x000f) +#define CARMINE_DFLT_IP_DCTL_RESERVE2 (0x0000) +#define CARMINE_DFLT_IP_DCTL_DDRIF1 (0x0646) +#define CARMINE_DFLT_IP_DCTL_DDRIF2 (0x55aa) +#define CARMINE_DFLT_IP_DCTL_MODE_AFT_RST (0x0061) +#define CARMINE_DFLT_IP_DCTL_STATES_AFT_RST (0x0002) +#define CARMINE_DFLT_IP_DCTL_IO_CONT0 (0x0555) +#define CARMINE_DFLT_IP_DCTL_IO_CONT1 (0x0555) +#define CARMINE_DCTL_DLL_RESET (1) +#endif + +#endif diff --git a/drivers/video/carminefb_regs.h b/drivers/video/carminefb_regs.h new file mode 100644 index 0000000..0452156 --- /dev/null +++ b/drivers/video/carminefb_regs.h @@ -0,0 +1,159 @@ +#ifndef _CARMINEFB_REGS_H +#define _CARMINEFB_REGS_H + +#define CARMINE_OVERLAY_EXT_MODE (0x00000002) +#define CARMINE_GRAPH_REG (0x00000000) +#define CARMINE_DISP0_REG (0x00100000) +#define CARMINE_DISP1_REG (0x00140000) +#define CARMINE_WB_REG (0x00180000) +#define CARMINE_DCTL_REG (0x00300000) +#define CARMINE_CTL_REG (0x00400000) +#define CARMINE_WINDOW_MODE (0x00000001) +#define CARMINE_EXTEND_MODE (CARMINE_WINDOW_MODE | \ + CARMINE_OVERLAY_EXT_MODE) +#define CARMINE_L0E (1 << 16) +#define CARMINE_L2E (1 << 18) +#define CARMINE_DEN (1 << 31) + +#define CARMINE_EXT_CMODE_DIRECT24_RGBA (0xC0000000) +#define CARMINE_DCTL_REG_MODE_ADD (0x00) +#define CARMINE_DCTL_REG_SETTIME1_EMODE (0x04) +#define CARMINE_DCTL_REG_REFRESH_SETTIME2 (0x08) +#define CARMINE_DCTL_REG_RSV0_STATES (0x0C) +#define CARMINE_DCTL_REG_RSV2_RSV1 (0x10) +#define CARMINE_DCTL_REG_DDRIF2_DDRIF1 (0x14) +#define CARMINE_DCTL_REG_IOCONT1_IOCONT0 (0x24) +#define CARMINE_DCTL_REG_STATES_MASK (0x000F) +#define CARMINE_DCTL_INIT_WAIT_INTERVAL (1) +#define CARMINE_DCTL_INIT_WAIT_LIMIT (5000) +#define CARMINE_WB_REG_WBM_DEFAULT (0x0001c020) +#define CARMINE_DISP_REG_L0RM (0x1880) +#define CARMINE_DISP_REG_L0PX (0x1884) +#define CARMINE_DISP_REG_L0PY (0x1888) +#define CARMINE_DISP_REG_L2RM (0x18A0) +#define CARMINE_DISP_REG_L2PX (0x18A4) +#define CARMINE_DISP_REG_L2PY (0x18A8) +#define CARMINE_DISP_REG_L3RM (0x18B0) +#define CARMINE_DISP_REG_L3PX (0x18B4) +#define CARMINE_DISP_REG_L3PY (0x18B8) +#define CARMINE_DISP_REG_L4RM (0x18C0) +#define CARMINE_DISP_REG_L4PX (0x18C4) +#define CARMINE_DISP_REG_L4PY (0x18C8) +#define CARMINE_DISP_REG_L5RM (0x18D0) +#define CARMINE_DISP_REG_L5PX (0x18D4) +#define CARMINE_DISP_REG_L5PY (0x18D8) +#define CARMINE_DISP_REG_L6RM (0x1924) +#define CARMINE_DISP_REG_L6PX (0x1928) +#define CARMINE_DISP_REG_L6PY (0x192C) +#define CARMINE_DISP_REG_L7RM (0x1964) +#define CARMINE_DISP_REG_L7PX (0x1968) +#define CARMINE_DISP_REG_L7PY (0x196C) +#define CARMINE_WB_REG_WBM (0x0004) +#define CARMINE_DISP_HTP_SHIFT (16) +#define CARMINE_DISP_HDB_SHIFT (16) +#define CARMINE_DISP_HSW_SHIFT (16) +#define CARMINE_DISP_VSW_SHIFT (24) +#define CARMINE_DISP_VTR_SHIFT (16) +#define CARMINE_DISP_VDP_SHIFT (16) +#define CARMINE_CURSOR_CUTZ_MASK (0x00000100) +#define CARMINE_CURSOR0_PRIORITY_MASK (0x00010000) +#define CARMINE_CURSOR1_PRIORITY_MASK (0x00020000) +#define CARMINE_DISP_WIDTH_SHIFT (16) +#define CARMINE_DISP_WIN_H_SHIFT (16) +#define CARMINE_DISP_REG_H_TOTAL (0x0004) +#define CARMINE_DISP_REG_H_PERIOD (0x0008) +#define CARMINE_DISP_REG_V_H_W_H_POS (0x000C) +#define CARMINE_DISP_REG_V_TOTAL (0x0010) +#define CARMINE_DISP_REG_V_PERIOD_POS (0x0014) +#define CARMINE_DISP_REG_L0_MODE_W_H (0x0020) +#define CARMINE_DISP_REG_L0_ORG_ADR (0x0024) +#define CARMINE_DISP_REG_L0_DISP_ADR (0x0028) +#define CARMINE_DISP_REG_L0_DISP_POS (0x002C) +#define CARMINE_DISP_REG_L1_WIDTH (0x0030) +#define CARMINE_DISP_REG_L1_ORG_ADR (0x0034) +#define CARMINE_DISP_REG_L2_MODE_W_H (0x0040) +#define CARMINE_DISP_REG_L2_ORG_ADR1 (0x0044) +#define CARMINE_DISP_REG_L2_DISP_ADR1 (0x0048) +#define CARMINE_DISP_REG_L2_DISP_POS (0x0054) +#define CARMINE_DISP_REG_L3_MODE_W_H (0x0058) +#define CARMINE_DISP_REG_L3_ORG_ADR1 (0x005C) +#define CARMINE_DISP_REG_L3_DISP_ADR1 (0x0060) +#define CARMINE_DISP_REG_L3_DISP_POS (0x006C) +#define CARMINE_DISP_REG_L4_MODE_W_H (0x0070) +#define CARMINE_DISP_REG_L4_ORG_ADR1 (0x0074) +#define CARMINE_DISP_REG_L4_DISP_ADR1 (0x0078) +#define CARMINE_DISP_REG_L4_DISP_POS (0x0084) +#define CARMINE_DISP_REG_L5_MODE_W_H (0x0088) +#define CARMINE_DISP_REG_L5_ORG_ADR1 (0x008C) +#define CARMINE_DISP_REG_L5_DISP_ADR1 (0x0090) +#define CARMINE_DISP_REG_L5_DISP_POS (0x009C) +#define CARMINE_DISP_REG_CURSOR_MODE (0x00A0) +#define CARMINE_DISP_REG_CUR1_POS (0x00A8) +#define CARMINE_DISP_REG_CUR2_POS (0x00B0) +#define CARMINE_DISP_REG_C_TRANS (0x00BC) +#define CARMINE_DISP_REG_MLMR_TRANS (0x00C0) +#define CARMINE_DISP_REG_L0_EXT_MODE (0x0110) +#define CARMINE_DISP_REG_L0_WIN_POS (0x0114) +#define CARMINE_DISP_REG_L0_WIN_SIZE (0x0118) +#define CARMINE_DISP_REG_L1_EXT_MODE (0x0120) +#define CARMINE_DISP_REG_L1_WIN_POS (0x0124) +#define CARMINE_DISP_REG_L1_WIN_SIZE (0x0128) +#define CARMINE_DISP_REG_L2_EXT_MODE (0x0130) +#define CARMINE_DISP_REG_L2_WIN_POS (0x0134) +#define CARMINE_DISP_REG_L2_WIN_SIZE (0x0138) +#define CARMINE_DISP_REG_L3_EXT_MODE (0x0140) +#define CARMINE_DISP_REG_L3_WIN_POS (0x0144) +#define CARMINE_DISP_REG_L3_WIN_SIZE (0x0148) +#define CARMINE_DISP_REG_L4_EXT_MODE (0x0150) +#define CARMINE_DISP_REG_L4_WIN_POS (0x0154) +#define CARMINE_DISP_REG_L4_WIN_SIZE (0x0158) +#define CARMINE_DISP_REG_L5_EXT_MODE (0x0160) +#define CARMINE_DISP_REG_L5_WIN_POS (0x0164) +#define CARMINE_DISP_REG_L5_WIN_SIZE (0x0168) +#define CARMINE_DISP_REG_L6_EXT_MODE (0x1918) +#define CARMINE_DISP_REG_L6_WIN_POS (0x191c) +#define CARMINE_DISP_REG_L6_WIN_SIZE (0x1920) +#define CARMINE_DISP_REG_L7_EXT_MODE (0x1958) +#define CARMINE_DISP_REG_L7_WIN_POS (0x195c) +#define CARMINE_DISP_REG_L7_WIN_SIZE (0x1960) +#define CARMINE_DISP_REG_BLEND_MODE_L0 (0x00B4) +#define CARMINE_DISP_REG_BLEND_MODE_L1 (0x0188) +#define CARMINE_DISP_REG_BLEND_MODE_L2 (0x018C) +#define CARMINE_DISP_REG_BLEND_MODE_L3 (0x0190) +#define CARMINE_DISP_REG_BLEND_MODE_L4 (0x0194) +#define CARMINE_DISP_REG_BLEND_MODE_L5 (0x0198) +#define CARMINE_DISP_REG_BLEND_MODE_L6 (0x1990) +#define CARMINE_DISP_REG_BLEND_MODE_L7 (0x1994) +#define CARMINE_DISP_REG_L0_TRANS (0x01A0) +#define CARMINE_DISP_REG_L1_TRANS (0x01A4) +#define CARMINE_DISP_REG_L2_TRANS (0x01A8) +#define CARMINE_DISP_REG_L3_TRANS (0x01AC) +#define CARMINE_DISP_REG_L4_TRANS (0x01B0) +#define CARMINE_DISP_REG_L5_TRANS (0x01B4) +#define CARMINE_DISP_REG_L6_TRANS (0x1998) +#define CARMINE_DISP_REG_L7_TRANS (0x199c) +#define CARMINE_EXTEND_MODE_MASK (0x00000003) +#define CARMINE_DISP_DCM_MASK (0x0000FFFF) +#define CARMINE_DISP_REG_DCM1 (0x0100) +#define CARMINE_DISP_WIDTH_UNIT (64) +#define CARMINE_DISP_REG_L6_MODE_W_H (0x1900) +#define CARMINE_DISP_REG_L6_ORG_ADR1 (0x1904) +#define CARMINE_DISP_REG_L6_DISP_ADR0 (0x1908) +#define CARMINE_DISP_REG_L6_DISP_POS (0x1914) +#define CARMINE_DISP_REG_L7_MODE_W_H (0x1940) +#define CARMINE_DISP_REG_L7_ORG_ADR1 (0x1944) +#define CARMINE_DISP_REG_L7_DISP_ADR0 (0x1948) +#define CARMINE_DISP_REG_L7_DISP_POS (0x1954) +#define CARMINE_CTL_REG_CLOCK_ENABLE (0x000C) +#define CARMINE_CTL_REG_SOFTWARE_RESET (0x0010) +#define CARMINE_CTL_REG_IST_MASK_ALL (0x07FFFFFF) +#define CARMINE_GRAPH_REG_VRINTM (0x00028064) +#define CARMINE_GRAPH_REG_VRERRM (0x0002806C) +#define CARMINE_GRAPH_REG_DC_OFFSET_PX (0x0004005C) +#define CARMINE_GRAPH_REG_DC_OFFSET_PY (0x00040060) +#define CARMINE_GRAPH_REG_DC_OFFSET_LX (0x00040064) +#define CARMINE_GRAPH_REG_DC_OFFSET_LY (0x00040068) +#define CARMINE_GRAPH_REG_DC_OFFSET_TX (0x0004006C) +#define CARMINE_GRAPH_REG_DC_OFFSET_TY (0x00040070) + +#endif diff --git a/drivers/video/cobalt_lcdfb.c b/drivers/video/cobalt_lcdfb.c new file mode 100644 index 0000000..7bad24e --- /dev/null +++ b/drivers/video/cobalt_lcdfb.c @@ -0,0 +1,371 @@ +/* + * Cobalt server LCD frame buffer driver. + * + * Copyright (C) 2008 Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ +#include <linux/delay.h> +#include <linux/fb.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/ioport.h> +#include <linux/uaccess.h> +#include <linux/platform_device.h> + +/* + * Cursor position address + * \X 0 1 2 ... 14 15 + * Y+----+----+----+---+----+----+ + * 0|0x00|0x01|0x02|...|0x0e|0x0f| + * +----+----+----+---+----+----+ + * 1|0x40|0x41|0x42|...|0x4e|0x4f| + * +----+----+----+---+----+----+ + */ +#define LCD_DATA_REG_OFFSET 0x10 +#define LCD_XRES_MAX 16 +#define LCD_YRES_MAX 2 +#define LCD_CHARS_MAX 32 + +#define LCD_CLEAR 0x01 +#define LCD_CURSOR_MOVE_HOME 0x02 +#define LCD_RESET 0x06 +#define LCD_OFF 0x08 +#define LCD_CURSOR_OFF 0x0c +#define LCD_CURSOR_BLINK_OFF 0x0e +#define LCD_CURSOR_ON 0x0f +#define LCD_ON LCD_CURSOR_ON +#define LCD_CURSOR_MOVE_LEFT 0x10 +#define LCD_CURSOR_MOVE_RIGHT 0x14 +#define LCD_DISPLAY_LEFT 0x18 +#define LCD_DISPLAY_RIGHT 0x1c +#define LCD_PRERESET 0x3f /* execute 4 times continuously */ +#define LCD_BUSY 0x80 + +#define LCD_GRAPHIC_MODE 0x40 +#define LCD_TEXT_MODE 0x80 +#define LCD_CUR_POS_MASK 0x7f + +#define LCD_CUR_POS(x) ((x) & LCD_CUR_POS_MASK) +#define LCD_TEXT_POS(x) ((x) | LCD_TEXT_MODE) + +static inline void lcd_write_control(struct fb_info *info, u8 control) +{ + writel((u32)control << 24, info->screen_base); +} + +static inline u8 lcd_read_control(struct fb_info *info) +{ + return readl(info->screen_base) >> 24; +} + +static inline void lcd_write_data(struct fb_info *info, u8 data) +{ + writel((u32)data << 24, info->screen_base + LCD_DATA_REG_OFFSET); +} + +static inline u8 lcd_read_data(struct fb_info *info) +{ + return readl(info->screen_base + LCD_DATA_REG_OFFSET) >> 24; +} + +static int lcd_busy_wait(struct fb_info *info) +{ + u8 val = 0; + int timeout = 10, retval = 0; + + do { + val = lcd_read_control(info); + val &= LCD_BUSY; + if (val != LCD_BUSY) + break; + + if (msleep_interruptible(1)) + return -EINTR; + + timeout--; + } while (timeout); + + if (val == LCD_BUSY) + retval = -EBUSY; + + return retval; +} + +static void lcd_clear(struct fb_info *info) +{ + int i; + + for (i = 0; i < 4; i++) { + udelay(150); + + lcd_write_control(info, LCD_PRERESET); + } + + udelay(150); + + lcd_write_control(info, LCD_CLEAR); + + udelay(150); + + lcd_write_control(info, LCD_RESET); +} + +static struct fb_fix_screeninfo cobalt_lcdfb_fix __initdata = { + .id = "cobalt-lcd", + .type = FB_TYPE_TEXT, + .type_aux = FB_AUX_TEXT_MDA, + .visual = FB_VISUAL_MONO01, + .line_length = LCD_XRES_MAX, + .accel = FB_ACCEL_NONE, +}; + +static ssize_t cobalt_lcdfb_read(struct fb_info *info, char __user *buf, + size_t count, loff_t *ppos) +{ + char src[LCD_CHARS_MAX]; + unsigned long pos; + int len, retval = 0; + + pos = *ppos; + if (pos >= LCD_CHARS_MAX || count == 0) + return 0; + + if (count > LCD_CHARS_MAX) + count = LCD_CHARS_MAX; + + if (pos + count > LCD_CHARS_MAX) + count = LCD_CHARS_MAX - pos; + + for (len = 0; len < count; len++) { + retval = lcd_busy_wait(info); + if (retval < 0) + break; + + lcd_write_control(info, LCD_TEXT_POS(pos)); + + retval = lcd_busy_wait(info); + if (retval < 0) + break; + + src[len] = lcd_read_data(info); + if (pos == 0x0f) + pos = 0x40; + else + pos++; + } + + if (retval < 0 && signal_pending(current)) + return -ERESTARTSYS; + + if (copy_to_user(buf, src, len)) + return -EFAULT; + + *ppos += len; + + return len; +} + +static ssize_t cobalt_lcdfb_write(struct fb_info *info, const char __user *buf, + size_t count, loff_t *ppos) +{ + char dst[LCD_CHARS_MAX]; + unsigned long pos; + int len, retval = 0; + + pos = *ppos; + if (pos >= LCD_CHARS_MAX || count == 0) + return 0; + + if (count > LCD_CHARS_MAX) + count = LCD_CHARS_MAX; + + if (pos + count > LCD_CHARS_MAX) + count = LCD_CHARS_MAX - pos; + + if (copy_from_user(dst, buf, count)) + return -EFAULT; + + for (len = 0; len < count; len++) { + retval = lcd_busy_wait(info); + if (retval < 0) + break; + + lcd_write_control(info, LCD_TEXT_POS(pos)); + + retval = lcd_busy_wait(info); + if (retval < 0) + break; + + lcd_write_data(info, dst[len]); + if (pos == 0x0f) + pos = 0x40; + else + pos++; + } + + if (retval < 0 && signal_pending(current)) + return -ERESTARTSYS; + + *ppos += len; + + return len; +} + +static int cobalt_lcdfb_blank(int blank_mode, struct fb_info *info) +{ + int retval; + + retval = lcd_busy_wait(info); + if (retval < 0) + return retval; + + switch (blank_mode) { + case FB_BLANK_UNBLANK: + lcd_write_control(info, LCD_ON); + break; + default: + lcd_write_control(info, LCD_OFF); + break; + } + + return 0; +} + +static int cobalt_lcdfb_cursor(struct fb_info *info, struct fb_cursor *cursor) +{ + u32 x, y; + int retval; + + switch (cursor->set) { + case FB_CUR_SETPOS: + x = cursor->image.dx; + y = cursor->image.dy; + if (x >= LCD_XRES_MAX || y >= LCD_YRES_MAX) + return -EINVAL; + + retval = lcd_busy_wait(info); + if (retval < 0) + return retval; + + lcd_write_control(info, + LCD_TEXT_POS(info->fix.line_length * y + x)); + break; + default: + return -EINVAL; + } + + retval = lcd_busy_wait(info); + if (retval < 0) + return retval; + + if (cursor->enable) + lcd_write_control(info, LCD_CURSOR_ON); + else + lcd_write_control(info, LCD_CURSOR_OFF); + + return 0; +} + +static struct fb_ops cobalt_lcd_fbops = { + .owner = THIS_MODULE, + .fb_read = cobalt_lcdfb_read, + .fb_write = cobalt_lcdfb_write, + .fb_blank = cobalt_lcdfb_blank, + .fb_cursor = cobalt_lcdfb_cursor, +}; + +static int __init cobalt_lcdfb_probe(struct platform_device *dev) +{ + struct fb_info *info; + struct resource *res; + int retval; + + info = framebuffer_alloc(0, &dev->dev); + if (!info) + return -ENOMEM; + + res = platform_get_resource(dev, IORESOURCE_MEM, 0); + if (!res) { + framebuffer_release(info); + return -EBUSY; + } + + info->screen_size = res->end - res->start + 1; + info->screen_base = ioremap(res->start, info->screen_size); + info->fbops = &cobalt_lcd_fbops; + info->fix = cobalt_lcdfb_fix; + info->fix.smem_start = res->start; + info->fix.smem_len = info->screen_size; + info->pseudo_palette = NULL; + info->par = NULL; + info->flags = FBINFO_DEFAULT; + + retval = register_framebuffer(info); + if (retval < 0) { + iounmap(info->screen_base); + framebuffer_release(info); + return retval; + } + + platform_set_drvdata(dev, info); + + lcd_clear(info); + + printk(KERN_INFO "fb%d: Cobalt server LCD frame buffer device\n", + info->node); + + return 0; +} + +static int __devexit cobalt_lcdfb_remove(struct platform_device *dev) +{ + struct fb_info *info; + + info = platform_get_drvdata(dev); + if (info) { + iounmap(info->screen_base); + unregister_framebuffer(info); + framebuffer_release(info); + } + + return 0; +} + +static struct platform_driver cobalt_lcdfb_driver = { + .probe = cobalt_lcdfb_probe, + .remove = __devexit_p(cobalt_lcdfb_remove), + .driver = { + .name = "cobalt-lcd", + .owner = THIS_MODULE, + }, +}; + +static int __init cobalt_lcdfb_init(void) +{ + return platform_driver_register(&cobalt_lcdfb_driver); +} + +static void __exit cobalt_lcdfb_exit(void) +{ + platform_driver_unregister(&cobalt_lcdfb_driver); +} + +module_init(cobalt_lcdfb_init); +module_exit(cobalt_lcdfb_exit); + +MODULE_LICENSE("GPL v2"); +MODULE_AUTHOR("Yoichi Yuasa"); +MODULE_DESCRIPTION("Cobalt server LCD frame buffer driver"); diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c index 4be3b46..3ccfa76 100644 --- a/drivers/video/console/fbcon.c +++ b/drivers/video/console/fbcon.c @@ -107,9 +107,7 @@ static struct display fb_display[MAX_NR_CONSOLES]; static signed char con2fb_map[MAX_NR_CONSOLES]; static signed char con2fb_map_boot[MAX_NR_CONSOLES]; -#ifndef MODULE -static int logo_height; -#endif + static int logo_lines; /* logo_shown is an index to vc_cons when >= 0; otherwise follows FBCON_LOGO enums. */ @@ -607,6 +605,7 @@ static void fbcon_prepare_logo(struct vc_data *vc, struct fb_info *info, struct fbcon_ops *ops = info->fbcon_par; int cnt, erase = vc->vc_video_erase_char, step; unsigned short *save = NULL, *r, *q; + int logo_height; if (info->flags & FBINFO_MODULE) { logo_shown = FBCON_LOGO_DONTSHOW; diff --git a/drivers/video/console/fbcon.h b/drivers/video/console/fbcon.h index 0135e03..de1b136 100644 --- a/drivers/video/console/fbcon.h +++ b/drivers/video/console/fbcon.h @@ -92,7 +92,7 @@ struct fbcon_ops { #define attr_fgcol(fgshift,s) \ (((s) >> (fgshift)) & 0x0f) #define attr_bgcol(bgshift,s) \ - (((s) >> (bgshift)) & 0x0f) + (((s) >> (bgshift)) & 0x07) /* Monochrome */ #define attr_bold(s) \ @@ -146,10 +146,8 @@ static inline int attr_col_ec(int shift, struct vc_data *vc, return is_fg ? fg : bg; } -#define attr_bgcol_ec(bgshift,vc,info) \ - attr_col_ec(bgshift,vc,info,0); -#define attr_fgcol_ec(fgshift,vc,info) \ - attr_col_ec(fgshift,vc,info,1); +#define attr_bgcol_ec(bgshift, vc, info) attr_col_ec(bgshift, vc, info, 0) +#define attr_fgcol_ec(fgshift, vc, info) attr_col_ec(fgshift, vc, info, 1) /* Font */ #define REFCOUNT(fd) (((int *)(fd))[-1]) diff --git a/drivers/video/console/mdacon.c b/drivers/video/console/mdacon.c index 38a296b..9901064 100644 --- a/drivers/video/console/mdacon.c +++ b/drivers/video/console/mdacon.c @@ -71,13 +71,15 @@ static char *mda_type_name; /* console information */ -static int mda_first_vc = 1; +static int mda_first_vc = 13; static int mda_last_vc = 16; static struct vc_data *mda_display_fg = NULL; module_param(mda_first_vc, int, 0); +MODULE_PARM_DESC(mda_first_vc, "First virtual console. Default: 13"); module_param(mda_last_vc, int, 0); +MODULE_PARM_DESC(mda_last_vc, "Last virtual console. Default: 16"); /* MDA register values */ diff --git a/drivers/video/console/sticon.c b/drivers/video/console/sticon.c index a11cc2f..4055dbd 100644 --- a/drivers/video/console/sticon.c +++ b/drivers/video/console/sticon.c @@ -370,7 +370,7 @@ static const struct consw sti_con = { -int __init sticonsole_init(void) +static int __init sticonsole_init(void) { /* already initialized ? */ if (sticon_sti) diff --git a/drivers/video/console/sticore.c b/drivers/video/console/sticore.c index e9ab657..d7822af 100644 --- a/drivers/video/console/sticore.c +++ b/drivers/video/console/sticore.c @@ -29,7 +29,7 @@ #define STI_DRIVERVERSION "Version 0.9a" -struct sti_struct *default_sti __read_mostly; +static struct sti_struct *default_sti __read_mostly; /* number of STI ROMS found and their ptrs to each struct */ static int num_sti_roms __read_mostly; @@ -68,8 +68,7 @@ static const struct sti_init_flags default_init_flags = { .init_cmap_tx = 1, }; -int -sti_init_graph(struct sti_struct *sti) +static int sti_init_graph(struct sti_struct *sti) { struct sti_init_inptr_ext inptr_ext = { 0, }; struct sti_init_inptr inptr = { @@ -100,8 +99,7 @@ static const struct sti_conf_flags default_conf_flags = { .wait = STI_WAIT, }; -void -sti_inq_conf(struct sti_struct *sti) +static void sti_inq_conf(struct sti_struct *sti) { struct sti_conf_inptr inptr = { 0, }; unsigned long flags; @@ -237,8 +235,8 @@ static void sti_flush(unsigned long start, unsigned long end) flush_icache_range(start, end); } -void __devinit -sti_rom_copy(unsigned long base, unsigned long count, void *dest) +static void __devinit sti_rom_copy(unsigned long base, unsigned long count, + void *dest) { unsigned long dest_start = (unsigned long) dest; @@ -478,8 +476,8 @@ sti_init_glob_cfg(struct sti_struct *sti, } #ifdef CONFIG_FB -struct sti_cooked_font * __devinit -sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name) +static struct sti_cooked_font __devinit +*sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name) { const struct font_desc *fbfont; unsigned int size, bpc; @@ -534,16 +532,16 @@ sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name) return cooked_font; } #else -struct sti_cooked_font * __devinit -sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name) +static struct sti_cooked_font __devinit +*sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name) { return NULL; } #endif -struct sti_cooked_font * __devinit -sti_select_font(struct sti_cooked_rom *rom, - int (*search_font_fnc) (struct sti_cooked_rom *,int,int) ) +static struct sti_cooked_font __devinit +*sti_select_font(struct sti_cooked_rom *rom, + int (*search_font_fnc)(struct sti_cooked_rom *, int, int)) { struct sti_cooked_font *font; int i; @@ -707,8 +705,7 @@ sti_get_bmode_rom (unsigned long address) return raw; } -struct sti_rom * __devinit -sti_get_wmode_rom (unsigned long address) +static struct sti_rom __devinit *sti_get_wmode_rom(unsigned long address) { struct sti_rom *raw; unsigned long size; @@ -723,8 +720,8 @@ sti_get_wmode_rom (unsigned long address) return raw; } -int __devinit -sti_read_rom(int wordmode, struct sti_struct *sti, unsigned long address) +static int __devinit sti_read_rom(int wordmode, struct sti_struct *sti, + unsigned long address) { struct sti_cooked_rom *cooked; struct sti_rom *raw = NULL; diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c index 1cd5071..6b48780 100644 --- a/drivers/video/fbmem.c +++ b/drivers/video/fbmem.c @@ -848,9 +848,8 @@ int fb_pan_display(struct fb_info *info, struct fb_var_screeninfo *var) { struct fb_fix_screeninfo *fix = &info->fix; - int xoffset = var->xoffset; - int yoffset = var->yoffset; - int err = 0, yres = info->var.yres; + unsigned int yres = info->var.yres; + int err = 0; if (var->yoffset > 0) { if (var->vmode & FB_VMODE_YWRAP) { @@ -866,8 +865,8 @@ fb_pan_display(struct fb_info *info, struct fb_var_screeninfo *var) (var->xoffset % fix->xpanstep))) err = -EINVAL; - if (err || !info->fbops->fb_pan_display || xoffset < 0 || - yoffset < 0 || var->yoffset + yres > info->var.yres_virtual || + if (err || !info->fbops->fb_pan_display || + var->yoffset + yres > info->var.yres_virtual || var->xoffset + info->var.xres > info->var.xres_virtual) return -EINVAL; diff --git a/drivers/video/fbmon.c b/drivers/video/fbmon.c index 052e180..6a0aa18 100644 --- a/drivers/video/fbmon.c +++ b/drivers/video/fbmon.c @@ -879,7 +879,7 @@ int fb_parse_edid(unsigned char *edid, struct fb_var_screeninfo *var) if (edid_is_timing_block(block)) { var->xres = var->xres_virtual = H_ACTIVE; var->yres = var->yres_virtual = V_ACTIVE; - var->height = var->width = -1; + var->height = var->width = 0; var->right_margin = H_SYNC_OFFSET; var->left_margin = (H_ACTIVE + H_BLANKING) - (H_ACTIVE + H_SYNC_OFFSET + H_SYNC_WIDTH); diff --git a/drivers/video/fsl-diu-fb.c b/drivers/video/fsl-diu-fb.c index 09d7e22..9cd36c2 100644 --- a/drivers/video/fsl-diu-fb.c +++ b/drivers/video/fsl-diu-fb.c @@ -279,58 +279,42 @@ static struct diu_hw dr = { static struct diu_pool pool; -/* To allocate memory for framebuffer. First try __get_free_pages(). If it - * fails, try rh_alloc. The reason is __get_free_pages() cannot allocate - * very large memory (more than 4MB). We don't want to allocate all memory - * in rheap since small memory allocation/deallocation will fragment the - * rheap and make the furture large allocation fail. +/** + * fsl_diu_alloc - allocate memory for the DIU + * @size: number of bytes to allocate + * @param: returned physical address of memory + * + * This function allocates a physically-contiguous block of memory. */ - -static void *fsl_diu_alloc(unsigned long size, phys_addr_t *phys) +static void *fsl_diu_alloc(size_t size, phys_addr_t *phys) { void *virt; - pr_debug("size=%lu\n", size); + pr_debug("size=%zu\n", size); - virt = (void *)__get_free_pages(GFP_DMA | __GFP_ZERO, get_order(size)); + virt = alloc_pages_exact(size, GFP_DMA | __GFP_ZERO); if (virt) { *phys = virt_to_phys(virt); - pr_debug("virt %p, phys=%llx\n", virt, (uint64_t) *phys); - return virt; - } - if (!diu_ops.diu_mem) { - printk(KERN_INFO "%s: no diu_mem." - " To reserve more memory, put 'diufb=15M' " - "in the command line\n", __func__); - return NULL; - } - - virt = (void *)rh_alloc(&diu_ops.diu_rh_info, size, "DIU"); - if (virt) { - *phys = virt_to_bus(virt); - memset(virt, 0, size); + pr_debug("virt=%p phys=%llx\n", virt, + (unsigned long long)*phys); } - pr_debug("rh virt=%p phys=%llx\n", virt, (unsigned long long)*phys); - return virt; } -static void fsl_diu_free(void *p, unsigned long size) +/** + * fsl_diu_free - release DIU memory + * @virt: pointer returned by fsl_diu_alloc() + * @size: number of bytes allocated by fsl_diu_alloc() + * + * This function releases memory allocated by fsl_diu_alloc(). + */ +static void fsl_diu_free(void *virt, size_t size) { - pr_debug("p=%p size=%lu\n", p, size); + pr_debug("virt=%p size=%zu\n", virt, size); - if (!p) - return; - - if ((p >= diu_ops.diu_mem) && - (p < (diu_ops.diu_mem + diu_ops.diu_size))) { - pr_debug("rh\n"); - rh_free(&diu_ops.diu_rh_info, (unsigned long) p); - } else { - pr_debug("dma\n"); - free_pages((unsigned long)p, get_order(size)); - } + if (virt && size) + free_pages_exact(virt, size); } static int fsl_diu_enable_panel(struct fb_info *info) diff --git a/drivers/video/geode/lxfb.h b/drivers/video/geode/lxfb.h index 3b9416f..6a51448 100644 --- a/drivers/video/geode/lxfb.h +++ b/drivers/video/geode/lxfb.h @@ -51,8 +51,6 @@ static inline unsigned int lx_get_pitch(unsigned int xres, int bpp) } void lx_set_mode(struct fb_info *); -void lx_get_gamma(struct fb_info *, unsigned int *, int); -void lx_set_gamma(struct fb_info *, unsigned int *, int); unsigned int lx_framebuffer_size(void); int lx_blank_display(struct fb_info *, int); void lx_set_palette_reg(struct fb_info *, unsigned int, unsigned int, diff --git a/drivers/video/geode/lxfb_ops.c b/drivers/video/geode/lxfb_ops.c index aaef916..b1cd49c 100644 --- a/drivers/video/geode/lxfb_ops.c +++ b/drivers/video/geode/lxfb_ops.c @@ -517,25 +517,25 @@ void lx_set_palette_reg(struct fb_info *info, unsigned regno, int lx_blank_display(struct fb_info *info, int blank_mode) { struct lxfb_par *par = info->par; - u32 dcfg, fp_pm; - int blank, hsync, vsync, crt; + u32 dcfg, misc, fp_pm; + int blank, hsync, vsync; /* CRT power saving modes. */ switch (blank_mode) { case FB_BLANK_UNBLANK: - blank = 0; hsync = 1; vsync = 1; crt = 1; + blank = 0; hsync = 1; vsync = 1; break; case FB_BLANK_NORMAL: - blank = 1; hsync = 1; vsync = 1; crt = 1; + blank = 1; hsync = 1; vsync = 1; break; case FB_BLANK_VSYNC_SUSPEND: - blank = 1; hsync = 1; vsync = 0; crt = 1; + blank = 1; hsync = 1; vsync = 0; break; case FB_BLANK_HSYNC_SUSPEND: - blank = 1; hsync = 0; vsync = 1; crt = 1; + blank = 1; hsync = 0; vsync = 1; break; case FB_BLANK_POWERDOWN: - blank = 1; hsync = 0; vsync = 0; crt = 0; + blank = 1; hsync = 0; vsync = 0; break; default: return -EINVAL; @@ -545,15 +545,23 @@ int lx_blank_display(struct fb_info *info, int blank_mode) dcfg &= ~(VP_DCFG_DAC_BL_EN | VP_DCFG_HSYNC_EN | VP_DCFG_VSYNC_EN | VP_DCFG_CRT_EN); if (!blank) - dcfg |= VP_DCFG_DAC_BL_EN; + dcfg |= VP_DCFG_DAC_BL_EN | VP_DCFG_CRT_EN; if (hsync) dcfg |= VP_DCFG_HSYNC_EN; if (vsync) dcfg |= VP_DCFG_VSYNC_EN; - if (crt) - dcfg |= VP_DCFG_CRT_EN; + write_vp(par, VP_DCFG, dcfg); + misc = read_vp(par, VP_MISC); + + if (vsync && hsync) + misc &= ~VP_MISC_DACPWRDN; + else + misc |= VP_MISC_DACPWRDN; + + write_vp(par, VP_MISC, misc); + /* Power on/off flat panel */ if (par->output & OUTPUT_PANEL) { diff --git a/drivers/video/hgafb.c b/drivers/video/hgafb.c index c18880d..0129c04 100644 --- a/drivers/video/hgafb.c +++ b/drivers/video/hgafb.c @@ -551,7 +551,7 @@ static struct fb_ops hgafb_ops = { * Initialization */ -static int __init hgafb_probe(struct device *device) +static int __init hgafb_probe(struct platform_device *pdev) { struct fb_info *info; @@ -565,7 +565,7 @@ static int __init hgafb_probe(struct device *device) printk(KERN_INFO "hgafb: %s with %ldK of memory detected.\n", hga_type_name, hga_vram_len/1024); - info = framebuffer_alloc(0, NULL); + info = framebuffer_alloc(0, &pdev->dev); if (!info) { iounmap(hga_vram); return -ENOMEM; @@ -593,13 +593,13 @@ static int __init hgafb_probe(struct device *device) printk(KERN_INFO "fb%d: %s frame buffer device\n", info->node, info->fix.id); - dev_set_drvdata(device, info); + platform_set_drvdata(pdev, info); return 0; } -static int hgafb_remove(struct device *device) +static int hgafb_remove(struct platform_device *pdev) { - struct fb_info *info = dev_get_drvdata(device); + struct fb_info *info = platform_get_drvdata(pdev); hga_txt_mode(); hga_clear_screen(); @@ -620,16 +620,15 @@ static int hgafb_remove(struct device *device) return 0; } -static struct device_driver hgafb_driver = { - .name = "hgafb", - .bus = &platform_bus_type, +static struct platform_driver hgafb_driver = { .probe = hgafb_probe, .remove = hgafb_remove, + .driver = { + .name = "hgafb", + }, }; -static struct platform_device hgafb_device = { - .name = "hgafb", -}; +static struct platform_device *hgafb_device; static int __init hgafb_init(void) { @@ -638,12 +637,15 @@ static int __init hgafb_init(void) if (fb_get_options("hgafb", NULL)) return -ENODEV; - ret = driver_register(&hgafb_driver); + ret = platform_driver_register(&hgafb_driver); if (!ret) { - ret = platform_device_register(&hgafb_device); - if (ret) - driver_unregister(&hgafb_driver); + hgafb_device = platform_device_register_simple("hgafb", 0, NULL, 0); + + if (IS_ERR(hgafb_device)) { + platform_driver_unregister(&hgafb_driver); + ret = PTR_ERR(hgafb_device); + } } return ret; @@ -651,8 +653,8 @@ static int __init hgafb_init(void) static void __exit hgafb_exit(void) { - platform_device_unregister(&hgafb_device); - driver_unregister(&hgafb_driver); + platform_device_unregister(hgafb_device); + platform_driver_unregister(&hgafb_driver); } /* ------------------------------------------------------------------------- diff --git a/drivers/video/imxfb.c b/drivers/video/imxfb.c index 94e4d3a..0c5a475 100644 --- a/drivers/video/imxfb.c +++ b/drivers/video/imxfb.c @@ -24,6 +24,7 @@ #include <linux/string.h> #include <linux/interrupt.h> #include <linux/slab.h> +#include <linux/mm.h> #include <linux/fb.h> #include <linux/delay.h> #include <linux/init.h> diff --git a/drivers/video/macfb.c b/drivers/video/macfb.c index aa8c714..b790ddf 100644 --- a/drivers/video/macfb.c +++ b/drivers/video/macfb.c @@ -596,7 +596,7 @@ static struct fb_ops macfb_ops = { .fb_imageblit = cfb_imageblit, }; -void __init macfb_setup(char *options) +static void __init macfb_setup(char *options) { char *this_opt; diff --git a/drivers/video/neofb.c b/drivers/video/neofb.c index 5246b04..25172b2 100644 --- a/drivers/video/neofb.c +++ b/drivers/video/neofb.c @@ -201,7 +201,6 @@ static int neoFindMode(int xres, int yres, int depth) * * Determine the closest clock frequency to the one requested. */ -#define REF_FREQ 0xe517 /* 14.31818 in 20.12 fixed point */ #define MAX_N 127 #define MAX_D 31 #define MAX_F 1 @@ -211,27 +210,24 @@ static void neoCalcVCLK(const struct fb_info *info, { int n, d, f; int n_best = 0, d_best = 0, f_best = 0; - long f_best_diff = (0x7ffff << 12); /* 20.12 */ - long f_target = (freq << 12) / 1000; /* 20.12 */ + long f_best_diff = 0x7ffff; for (f = 0; f <= MAX_F; f++) - for (n = 0; n <= MAX_N; n++) - for (d = 0; d <= MAX_D; d++) { - long f_out; /* 20.12 */ - long f_diff; /* 20.12 */ - - f_out = - ((((n + 1) << 12) / ((d + - 1) * - (1 << f))) >> 12) - * REF_FREQ; - f_diff = abs(f_out - f_target); - if (f_diff < f_best_diff) { + for (d = 0; d <= MAX_D; d++) + for (n = 0; n <= MAX_N; n++) { + long f_out; + long f_diff; + + f_out = ((14318 * (n + 1)) / (d + 1)) >> f; + f_diff = abs(f_out - freq); + if (f_diff <= f_best_diff) { f_best_diff = f_diff; n_best = n; d_best = d; f_best = f; } + if (f_out > freq) + break; } if (info->fix.accel == FB_ACCEL_NEOMAGIC_NM2200 || @@ -248,11 +244,11 @@ static void neoCalcVCLK(const struct fb_info *info, par->VCLK3Denominator = d_best; #ifdef NEOFB_DEBUG - printk("neoVCLK: f:%d NumLow=%d NumHi=%d Den=%d Df=%d\n", - f_target >> 12, + printk(KERN_DEBUG "neoVCLK: f:%ld NumLow=%d NumHi=%d Den=%d Df=%ld\n", + freq, par->VCLK3NumeratorLow, par->VCLK3NumeratorHigh, - par->VCLK3Denominator, f_best_diff >> 12); + par->VCLK3Denominator, f_best_diff); #endif } @@ -263,15 +259,20 @@ static void neoCalcVCLK(const struct fb_info *info, */ static int vgaHWInit(const struct fb_var_screeninfo *var, - const struct fb_info *info, - struct neofb_par *par, struct xtimings *timings) + struct neofb_par *par) { + int hsync_end = var->xres + var->right_margin + var->hsync_len; + int htotal = (hsync_end + var->left_margin) >> 3; + int vsync_start = var->yres + var->lower_margin; + int vsync_end = vsync_start + var->vsync_len; + int vtotal = vsync_end + var->upper_margin; + par->MiscOutReg = 0x23; - if (!(timings->sync & FB_SYNC_HOR_HIGH_ACT)) + if (!(var->sync & FB_SYNC_HOR_HIGH_ACT)) par->MiscOutReg |= 0x40; - if (!(timings->sync & FB_SYNC_VERT_HIGH_ACT)) + if (!(var->sync & FB_SYNC_VERT_HIGH_ACT)) par->MiscOutReg |= 0x80; /* @@ -286,25 +287,25 @@ static int vgaHWInit(const struct fb_var_screeninfo *var, /* * CRTC Controller */ - par->CRTC[0] = (timings->HTotal >> 3) - 5; - par->CRTC[1] = (timings->HDisplay >> 3) - 1; - par->CRTC[2] = (timings->HDisplay >> 3) - 1; - par->CRTC[3] = (((timings->HTotal >> 3) - 1) & 0x1F) | 0x80; - par->CRTC[4] = (timings->HSyncStart >> 3); - par->CRTC[5] = ((((timings->HTotal >> 3) - 1) & 0x20) << 2) - | (((timings->HSyncEnd >> 3)) & 0x1F); - par->CRTC[6] = (timings->VTotal - 2) & 0xFF; - par->CRTC[7] = (((timings->VTotal - 2) & 0x100) >> 8) - | (((timings->VDisplay - 1) & 0x100) >> 7) - | ((timings->VSyncStart & 0x100) >> 6) - | (((timings->VDisplay - 1) & 0x100) >> 5) - | 0x10 | (((timings->VTotal - 2) & 0x200) >> 4) - | (((timings->VDisplay - 1) & 0x200) >> 3) - | ((timings->VSyncStart & 0x200) >> 2); + par->CRTC[0] = htotal - 5; + par->CRTC[1] = (var->xres >> 3) - 1; + par->CRTC[2] = (var->xres >> 3) - 1; + par->CRTC[3] = ((htotal - 1) & 0x1F) | 0x80; + par->CRTC[4] = ((var->xres + var->right_margin) >> 3); + par->CRTC[5] = (((htotal - 1) & 0x20) << 2) + | (((hsync_end >> 3)) & 0x1F); + par->CRTC[6] = (vtotal - 2) & 0xFF; + par->CRTC[7] = (((vtotal - 2) & 0x100) >> 8) + | (((var->yres - 1) & 0x100) >> 7) + | ((vsync_start & 0x100) >> 6) + | (((var->yres - 1) & 0x100) >> 5) + | 0x10 | (((vtotal - 2) & 0x200) >> 4) + | (((var->yres - 1) & 0x200) >> 3) + | ((vsync_start & 0x200) >> 2); par->CRTC[8] = 0x00; - par->CRTC[9] = (((timings->VDisplay - 1) & 0x200) >> 4) | 0x40; + par->CRTC[9] = (((var->yres - 1) & 0x200) >> 4) | 0x40; - if (timings->dblscan) + if (var->vmode & FB_VMODE_DOUBLE) par->CRTC[9] |= 0x80; par->CRTC[10] = 0x00; @@ -313,13 +314,13 @@ static int vgaHWInit(const struct fb_var_screeninfo *var, par->CRTC[13] = 0x00; par->CRTC[14] = 0x00; par->CRTC[15] = 0x00; - par->CRTC[16] = timings->VSyncStart & 0xFF; - par->CRTC[17] = (timings->VSyncEnd & 0x0F) | 0x20; - par->CRTC[18] = (timings->VDisplay - 1) & 0xFF; + par->CRTC[16] = vsync_start & 0xFF; + par->CRTC[17] = (vsync_end & 0x0F) | 0x20; + par->CRTC[18] = (var->yres - 1) & 0xFF; par->CRTC[19] = var->xres_virtual >> 4; par->CRTC[20] = 0x00; - par->CRTC[21] = (timings->VDisplay - 1) & 0xFF; - par->CRTC[22] = (timings->VTotal - 1) & 0xFF; + par->CRTC[21] = (var->yres - 1) & 0xFF; + par->CRTC[22] = (vtotal - 1) & 0xFF; par->CRTC[23] = 0xC3; par->CRTC[24] = 0xFF; @@ -483,7 +484,8 @@ static inline int neo2200_sync(struct fb_info *info) { struct neofb_par *par = info->par; - while (readl(&par->neo2200->bltStat) & 1); + while (readl(&par->neo2200->bltStat) & 1) + cpu_relax(); return 0; } @@ -591,34 +593,14 @@ static int neofb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) { struct neofb_par *par = info->par; - unsigned int pixclock = var->pixclock; - struct xtimings timings; int memlen, vramlen; int mode_ok = 0; DBG("neofb_check_var"); - if (!pixclock) - pixclock = 10000; /* 10ns = 100MHz */ - timings.pixclock = 1000000000 / pixclock; - if (timings.pixclock < 1) - timings.pixclock = 1; - - if (timings.pixclock > par->maxClock) + if (PICOS2KHZ(var->pixclock) > par->maxClock) return -EINVAL; - timings.dblscan = var->vmode & FB_VMODE_DOUBLE; - timings.interlaced = var->vmode & FB_VMODE_INTERLACED; - timings.HDisplay = var->xres; - timings.HSyncStart = timings.HDisplay + var->right_margin; - timings.HSyncEnd = timings.HSyncStart + var->hsync_len; - timings.HTotal = timings.HSyncEnd + var->left_margin; - timings.VDisplay = var->yres; - timings.VSyncStart = timings.VDisplay + var->lower_margin; - timings.VSyncEnd = timings.VSyncStart + var->vsync_len; - timings.VTotal = timings.VSyncEnd + var->upper_margin; - timings.sync = var->sync; - /* Is the mode larger than the LCD panel? */ if (par->internal_display && ((var->xres > par->NeoPanelWidth) || @@ -759,11 +741,11 @@ neofb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) static int neofb_set_par(struct fb_info *info) { struct neofb_par *par = info->par; - struct xtimings timings; unsigned char temp; int i, clock_hi = 0; int lcd_stretch; int hoffset, voffset; + int vsync_start, vtotal; DBG("neofb_set_par"); @@ -771,28 +753,15 @@ static int neofb_set_par(struct fb_info *info) vgaHWProtect(1); /* Blank the screen */ - timings.dblscan = info->var.vmode & FB_VMODE_DOUBLE; - timings.interlaced = info->var.vmode & FB_VMODE_INTERLACED; - timings.HDisplay = info->var.xres; - timings.HSyncStart = timings.HDisplay + info->var.right_margin; - timings.HSyncEnd = timings.HSyncStart + info->var.hsync_len; - timings.HTotal = timings.HSyncEnd + info->var.left_margin; - timings.VDisplay = info->var.yres; - timings.VSyncStart = timings.VDisplay + info->var.lower_margin; - timings.VSyncEnd = timings.VSyncStart + info->var.vsync_len; - timings.VTotal = timings.VSyncEnd + info->var.upper_margin; - timings.sync = info->var.sync; - timings.pixclock = PICOS2KHZ(info->var.pixclock); - - if (timings.pixclock < 1) - timings.pixclock = 1; + vsync_start = info->var.yres + info->var.lower_margin; + vtotal = vsync_start + info->var.vsync_len + info->var.upper_margin; /* * This will allocate the datastructure and initialize all of the * generic VGA registers. */ - if (vgaHWInit(&info->var, info, par, &timings)) + if (vgaHWInit(&info->var, par)) return -EINVAL; /* @@ -831,10 +800,10 @@ static int neofb_set_par(struct fb_info *info) par->ExtCRTDispAddr = 0x10; /* Vertical Extension */ - par->VerticalExt = (((timings.VTotal - 2) & 0x400) >> 10) - | (((timings.VDisplay - 1) & 0x400) >> 9) - | (((timings.VSyncStart) & 0x400) >> 8) - | (((timings.VSyncStart) & 0x400) >> 7); + par->VerticalExt = (((vtotal - 2) & 0x400) >> 10) + | (((info->var.yres - 1) & 0x400) >> 9) + | (((vsync_start) & 0x400) >> 8) + | (((vsync_start) & 0x400) >> 7); /* Fast write bursts on unless disabled. */ if (par->pci_burst) @@ -995,7 +964,7 @@ static int neofb_set_par(struct fb_info *info) * Calculate the VCLK that most closely matches the requested dot * clock. */ - neoCalcVCLK(info, par, timings.pixclock); + neoCalcVCLK(info, par, PICOS2KHZ(info->var.pixclock)); /* Since we program the clocks ourselves, always use VCLK3. */ par->MiscOutReg |= 0x0C; @@ -1927,9 +1896,6 @@ static int __devinit neo_init_hw(struct fb_info *info) int maxClock = 65000; int CursorMem = 1024; int CursorOff = 0x100; - int linearSize = 1024; - int maxWidth = 1024; - int maxHeight = 1024; DBG("neo_init_hw"); @@ -1948,81 +1914,52 @@ static int __devinit neo_init_hw(struct fb_info *info) case FB_ACCEL_NEOMAGIC_NM2070: videoRam = 896; maxClock = 65000; - CursorMem = 2048; - CursorOff = 0x100; - linearSize = 1024; - maxWidth = 1024; - maxHeight = 1024; break; case FB_ACCEL_NEOMAGIC_NM2090: case FB_ACCEL_NEOMAGIC_NM2093: - videoRam = 1152; - maxClock = 80000; - CursorMem = 2048; - CursorOff = 0x100; - linearSize = 2048; - maxWidth = 1024; - maxHeight = 1024; - break; case FB_ACCEL_NEOMAGIC_NM2097: videoRam = 1152; maxClock = 80000; - CursorMem = 1024; - CursorOff = 0x100; - linearSize = 2048; - maxWidth = 1024; - maxHeight = 1024; break; case FB_ACCEL_NEOMAGIC_NM2160: videoRam = 2048; maxClock = 90000; - CursorMem = 1024; - CursorOff = 0x100; - linearSize = 2048; - maxWidth = 1024; - maxHeight = 1024; break; case FB_ACCEL_NEOMAGIC_NM2200: videoRam = 2560; maxClock = 110000; - CursorMem = 1024; - CursorOff = 0x1000; - linearSize = 4096; - maxWidth = 1280; - maxHeight = 1024; /* ???? */ - - par->neo2200 = (Neo2200 __iomem *) par->mmio_vbase; break; case FB_ACCEL_NEOMAGIC_NM2230: videoRam = 3008; maxClock = 110000; - CursorMem = 1024; - CursorOff = 0x1000; - linearSize = 4096; - maxWidth = 1280; - maxHeight = 1024; /* ???? */ - - par->neo2200 = (Neo2200 __iomem *) par->mmio_vbase; break; case FB_ACCEL_NEOMAGIC_NM2360: videoRam = 4096; maxClock = 110000; - CursorMem = 1024; - CursorOff = 0x1000; - linearSize = 4096; - maxWidth = 1280; - maxHeight = 1024; /* ???? */ - - par->neo2200 = (Neo2200 __iomem *) par->mmio_vbase; break; case FB_ACCEL_NEOMAGIC_NM2380: videoRam = 6144; maxClock = 110000; + break; + } + switch (info->fix.accel) { + case FB_ACCEL_NEOMAGIC_NM2070: + case FB_ACCEL_NEOMAGIC_NM2090: + case FB_ACCEL_NEOMAGIC_NM2093: + CursorMem = 2048; + CursorOff = 0x100; + break; + case FB_ACCEL_NEOMAGIC_NM2097: + case FB_ACCEL_NEOMAGIC_NM2160: + CursorMem = 1024; + CursorOff = 0x100; + break; + case FB_ACCEL_NEOMAGIC_NM2200: + case FB_ACCEL_NEOMAGIC_NM2230: + case FB_ACCEL_NEOMAGIC_NM2360: + case FB_ACCEL_NEOMAGIC_NM2380: CursorMem = 1024; CursorOff = 0x1000; - linearSize = 8192; - maxWidth = 1280; - maxHeight = 1024; /* ???? */ par->neo2200 = (Neo2200 __iomem *) par->mmio_vbase; break; @@ -2036,7 +1973,7 @@ static int __devinit neo_init_hw(struct fb_info *info) */ par->maxClock = maxClock; par->cursorOff = CursorOff; - return ((videoRam * 1024)); + return videoRam * 1024; } diff --git a/drivers/video/omap/dispc.c b/drivers/video/omap/dispc.c index ab32ceb..ab77c51 100644 --- a/drivers/video/omap/dispc.c +++ b/drivers/video/omap/dispc.c @@ -20,6 +20,7 @@ */ #include <linux/kernel.h> #include <linux/dma-mapping.h> +#include <linux/mm.h> #include <linux/vmalloc.h> #include <linux/clk.h> #include <linux/io.h> diff --git a/drivers/video/omap/omapfb_main.c b/drivers/video/omap/omapfb_main.c index 14d0f7a..f85af5c 100644 --- a/drivers/video/omap/omapfb_main.c +++ b/drivers/video/omap/omapfb_main.c @@ -25,6 +25,7 @@ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include <linux/platform_device.h> +#include <linux/mm.h> #include <linux/uaccess.h> #include <asm/mach-types.h> diff --git a/drivers/video/pxafb.c b/drivers/video/pxafb.c index bb25143..2b707a8 100644 --- a/drivers/video/pxafb.c +++ b/drivers/video/pxafb.c @@ -30,6 +30,7 @@ #include <linux/string.h> #include <linux/interrupt.h> #include <linux/slab.h> +#include <linux/mm.h> #include <linux/fb.h> #include <linux/delay.h> #include <linux/init.h> @@ -40,6 +41,7 @@ #include <linux/clk.h> #include <linux/err.h> #include <linux/completion.h> +#include <linux/mutex.h> #include <linux/kthread.h> #include <linux/freezer.h> @@ -1116,7 +1118,7 @@ static void set_ctrlr_state(struct pxafb_info *fbi, u_int state) { u_int old_state; - down(&fbi->ctrlr_sem); + mutex_lock(&fbi->ctrlr_lock); old_state = fbi->state; @@ -1204,7 +1206,7 @@ static void set_ctrlr_state(struct pxafb_info *fbi, u_int state) } break; } - up(&fbi->ctrlr_sem); + mutex_unlock(&fbi->ctrlr_lock); } /* @@ -1457,7 +1459,7 @@ static struct pxafb_info * __devinit pxafb_init_fbinfo(struct device *dev) init_waitqueue_head(&fbi->ctrlr_wait); INIT_WORK(&fbi->task, pxafb_task); - init_MUTEX(&fbi->ctrlr_sem); + mutex_init(&fbi->ctrlr_lock); init_completion(&fbi->disable_done); #ifdef CONFIG_FB_PXA_SMARTPANEL init_completion(&fbi->command_done); diff --git a/drivers/video/pxafb.h b/drivers/video/pxafb.h index 8238dc8..31541b8 100644 --- a/drivers/video/pxafb.h +++ b/drivers/video/pxafb.h @@ -106,7 +106,7 @@ struct pxafb_info { volatile u_char state; volatile u_char task_state; - struct semaphore ctrlr_sem; + struct mutex ctrlr_lock; wait_queue_head_t ctrlr_wait; struct work_struct task; diff --git a/drivers/video/sa1100fb.c b/drivers/video/sa1100fb.c index ab2b211..78bcdbc 100644 --- a/drivers/video/sa1100fb.c +++ b/drivers/video/sa1100fb.c @@ -167,6 +167,7 @@ #include <linux/string.h> #include <linux/interrupt.h> #include <linux/slab.h> +#include <linux/mm.h> #include <linux/fb.h> #include <linux/delay.h> #include <linux/init.h> @@ -174,6 +175,7 @@ #include <linux/cpufreq.h> #include <linux/platform_device.h> #include <linux/dma-mapping.h> +#include <linux/mutex.h> #include <asm/hardware.h> #include <asm/io.h> @@ -1107,7 +1109,7 @@ static void set_ctrlr_state(struct sa1100fb_info *fbi, u_int state) { u_int old_state; - down(&fbi->ctrlr_sem); + mutex_lock(&fbi->ctrlr_lock); old_state = fbi->state; @@ -1192,7 +1194,7 @@ static void set_ctrlr_state(struct sa1100fb_info *fbi, u_int state) } break; } - up(&fbi->ctrlr_sem); + mutex_unlock(&fbi->ctrlr_lock); } /* @@ -1444,7 +1446,7 @@ static struct sa1100fb_info * __init sa1100fb_init_fbinfo(struct device *dev) init_waitqueue_head(&fbi->ctrlr_wait); INIT_WORK(&fbi->task, sa1100fb_task); - init_MUTEX(&fbi->ctrlr_sem); + mutex_init(&fbi->ctrlr_lock); return fbi; } diff --git a/drivers/video/sa1100fb.h b/drivers/video/sa1100fb.h index f465b27..86831db 100644 --- a/drivers/video/sa1100fb.h +++ b/drivers/video/sa1100fb.h @@ -100,7 +100,7 @@ struct sa1100fb_info { volatile u_char state; volatile u_char task_state; - struct semaphore ctrlr_sem; + struct mutex ctrlr_lock; wait_queue_head_t ctrlr_wait; struct work_struct task; diff --git a/drivers/video/sh7760fb.c b/drivers/video/sh7760fb.c new file mode 100644 index 0000000..4d0e28c --- /dev/null +++ b/drivers/video/sh7760fb.c @@ -0,0 +1,658 @@ +/* + * SH7760/SH7763 LCDC Framebuffer driver. + * + * (c) 2006-2008 MSC Vertriebsges.m.b.H., + * Manuel Lauss <mano@roarinelk.homelinux.net> + * (c) 2008 Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> + * + * This file is subject to the terms and conditions of the GNU General + * Public License. See the file COPYING in the main directory of this + * archive for more details. + * + * PLEASE HAVE A LOOK AT Documentation/fb/sh7760fb.txt! + * + * Thanks to Siegfried Schaefer <s.schaefer at schaefer-edv.de> + * for his original source and testing! + */ + +#include <linux/completion.h> +#include <linux/delay.h> +#include <linux/dma-mapping.h> +#include <linux/fb.h> +#include <linux/interrupt.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/platform_device.h> + +#include <asm/sh7760fb.h> + +struct sh7760fb_par { + void __iomem *base; + int irq; + + struct sh7760fb_platdata *pd; /* display information */ + + dma_addr_t fbdma; /* physical address */ + + int rot; /* rotation enabled? */ + + u32 pseudo_palette[16]; + + struct platform_device *dev; + struct resource *ioarea; + struct completion vsync; /* vsync irq event */ +}; + +static irqreturn_t sh7760fb_irq(int irq, void *data) +{ + struct completion *c = data; + + complete(c); + + return IRQ_HANDLED; +} + +static void sh7760fb_wait_vsync(struct fb_info *info) +{ + struct sh7760fb_par *par = info->par; + + if (par->pd->novsync) + return; + + iowrite16(ioread16(par->base + LDINTR) & ~VINT_CHECK, + par->base + LDINTR); + + if (par->irq < 0) { + /* poll for vert. retrace: status bit is sticky */ + while (!(ioread16(par->base + LDINTR) & VINT_CHECK)) + cpu_relax(); + } else { + /* a "wait_for_irq_event(par->irq)" would be extremely nice */ + init_completion(&par->vsync); + enable_irq(par->irq); + wait_for_completion(&par->vsync); + disable_irq_nosync(par->irq); + } +} + +/* wait_for_lps - wait until power supply has reached a certain state. */ +static int wait_for_lps(struct sh7760fb_par *par, int val) +{ + int i = 100; + while (--i && ((ioread16(par->base + LDPMMR) & 3) != val)) + msleep(1); + + if (i <= 0) + return -ETIMEDOUT; + + return 0; +} + +/* en/disable the LCDC */ +static int sh7760fb_blank(int blank, struct fb_info *info) +{ + struct sh7760fb_par *par = info->par; + struct sh7760fb_platdata *pd = par->pd; + unsigned short cntr = ioread16(par->base + LDCNTR); + unsigned short intr = ioread16(par->base + LDINTR); + int lps; + + if (blank == FB_BLANK_UNBLANK) { + intr |= VINT_START; + cntr = LDCNTR_DON2 | LDCNTR_DON; + lps = 3; + } else { + intr &= ~VINT_START; + cntr = LDCNTR_DON2; + lps = 0; + } + + if (pd->blank) + pd->blank(blank); + + iowrite16(intr, par->base + LDINTR); + iowrite16(cntr, par->base + LDCNTR); + + return wait_for_lps(par, lps); +} + +/* set color registers */ +static int sh7760fb_setcmap(struct fb_cmap *cmap, struct fb_info *info) +{ + struct sh7760fb_par *par = info->par; + u32 s = cmap->start; + u32 l = cmap->len; + u16 *r = cmap->red; + u16 *g = cmap->green; + u16 *b = cmap->blue; + u32 col, tmo; + int ret; + + ret = 0; + + sh7760fb_wait_vsync(info); + + /* request palette access */ + iowrite16(LDPALCR_PALEN, par->base + LDPALCR); + + /* poll for access grant */ + tmo = 100; + while (!(ioread16(par->base + LDPALCR) & LDPALCR_PALS) && (--tmo)) + cpu_relax(); + + if (!tmo) { + ret = 1; + dev_dbg(info->dev, "no palette access!\n"); + goto out; + } + + while (l && (s < 256)) { + col = ((*r) & 0xff) << 16; + col |= ((*g) & 0xff) << 8; + col |= ((*b) & 0xff); + col &= SH7760FB_PALETTE_MASK; + + if (s < 16) + ((u32 *) (info->pseudo_palette))[s] = s; + + s++; + l--; + r++; + g++; + b++; + } +out: + iowrite16(0, par->base + LDPALCR); + return ret; +} + +static void encode_fix(struct fb_fix_screeninfo *fix, struct fb_info *info, + unsigned long stride) +{ + memset(fix, 0, sizeof(struct fb_fix_screeninfo)); + strcpy(fix->id, "sh7760-lcdc"); + + fix->smem_start = (unsigned long)info->screen_base; + fix->smem_len = info->screen_size; + + fix->line_length = stride; +} + +static int sh7760fb_get_color_info(struct device *dev, + u16 lddfr, int *bpp, int *gray) +{ + int lbpp, lgray; + + lgray = lbpp = 0; + + switch (lddfr & LDDFR_COLOR_MASK) { + case LDDFR_1BPP_MONO: + lgray = 1; + lbpp = 1; + break; + case LDDFR_2BPP_MONO: + lgray = 1; + lbpp = 2; + break; + case LDDFR_4BPP_MONO: + lgray = 1; + case LDDFR_4BPP: + lbpp = 4; + break; + case LDDFR_6BPP_MONO: + lgray = 1; + case LDDFR_8BPP: + lbpp = 8; + break; + case LDDFR_16BPP_RGB555: + case LDDFR_16BPP_RGB565: + lbpp = 16; + lgray = 0; + break; + default: + dev_dbg(dev, "unsupported LDDFR bit depth.\n"); + return -EINVAL; + } + + if (bpp) + *bpp = lbpp; + if (gray) + *gray = lgray; + + return 0; +} + +static int sh7760fb_check_var(struct fb_var_screeninfo *var, + struct fb_info *info) +{ + struct fb_fix_screeninfo *fix = &info->fix; + struct sh7760fb_par *par = info->par; + int ret, bpp; + + /* get color info from register value */ + ret = sh7760fb_get_color_info(info->dev, par->pd->lddfr, &bpp, NULL); + if (ret) + return ret; + + var->bits_per_pixel = bpp; + + if ((var->grayscale) && (var->bits_per_pixel == 1)) + fix->visual = FB_VISUAL_MONO10; + else if (var->bits_per_pixel >= 15) + fix->visual = FB_VISUAL_TRUECOLOR; + else + fix->visual = FB_VISUAL_PSEUDOCOLOR; + + /* TODO: add some more validation here */ + return 0; +} + +/* + * sh7760fb_set_par - set videomode. + * + * NOTE: The rotation, grayscale and DSTN codepaths are + * totally untested! + */ +static int sh7760fb_set_par(struct fb_info *info) +{ + struct sh7760fb_par *par = info->par; + struct fb_videomode *vm = par->pd->def_mode; + unsigned long sbase, dstn_off, ldsarl, stride; + unsigned short hsynp, hsynw, htcn, hdcn; + unsigned short vsynp, vsynw, vtln, vdln; + unsigned short lddfr, ldmtr; + int ret, bpp, gray; + + par->rot = par->pd->rotate; + + /* rotate only works with xres <= 320 */ + if (par->rot && (vm->xres > 320)) { + dev_dbg(info->dev, "rotation disabled due to display size\n"); + par->rot = 0; + } + + /* calculate LCDC reg vals from display parameters */ + hsynp = vm->right_margin + vm->xres; + hsynw = vm->hsync_len; + htcn = vm->left_margin + hsynp + hsynw; + hdcn = vm->xres; + vsynp = vm->lower_margin + vm->yres; + vsynw = vm->vsync_len; + vtln = vm->upper_margin + vsynp + vsynw; + vdln = vm->yres; + + /* get color info from register value */ + ret = sh7760fb_get_color_info(info->dev, par->pd->lddfr, &bpp, &gray); + if (ret) + return ret; + + dev_dbg(info->dev, "%dx%d %dbpp %s (orientation %s)\n", hdcn, + vdln, bpp, gray ? "grayscale" : "color", + par->rot ? "rotated" : "normal"); + +#ifdef CONFIG_CPU_LITTLE_ENDIAN + lddfr = par->pd->lddfr | (1 << 8); +#else + lddfr = par->pd->lddfr & ~(1 << 8); +#endif + + ldmtr = par->pd->ldmtr; + + if (!(vm->sync & FB_SYNC_HOR_HIGH_ACT)) + ldmtr |= LDMTR_CL1POL; + if (!(vm->sync & FB_SYNC_VERT_HIGH_ACT)) + ldmtr |= LDMTR_FLMPOL; + + /* shut down LCDC before changing display parameters */ + sh7760fb_blank(FB_BLANK_POWERDOWN, info); + + iowrite16(par->pd->ldickr, par->base + LDICKR); /* pixclock */ + iowrite16(ldmtr, par->base + LDMTR); /* polarities */ + iowrite16(lddfr, par->base + LDDFR); /* color/depth */ + iowrite16((par->rot ? 1 << 13 : 0), par->base + LDSMR); /* rotate */ + iowrite16(par->pd->ldpmmr, par->base + LDPMMR); /* Power Management */ + iowrite16(par->pd->ldpspr, par->base + LDPSPR); /* Power Supply Ctrl */ + + /* display resolution */ + iowrite16(((htcn >> 3) - 1) | (((hdcn >> 3) - 1) << 8), + par->base + LDHCNR); + iowrite16(vdln - 1, par->base + LDVDLNR); + iowrite16(vtln - 1, par->base + LDVTLNR); + /* h/v sync signals */ + iowrite16((vsynp - 1) | ((vsynw - 1) << 12), par->base + LDVSYNR); + iowrite16(((hsynp >> 3) - 1) | (((hsynw >> 3) - 1) << 12), + par->base + LDHSYNR); + /* AC modulation sig */ + iowrite16(par->pd->ldaclnr, par->base + LDACLNR); + + stride = (par->rot) ? vtln : hdcn; + if (!gray) + stride *= (bpp + 7) >> 3; + else { + if (bpp == 1) + stride >>= 3; + else if (bpp == 2) + stride >>= 2; + else if (bpp == 4) + stride >>= 1; + /* 6 bpp == 8 bpp */ + } + + /* if rotated, stride must be power of 2 */ + if (par->rot) { + unsigned long bit = 1 << 31; + while (bit) { + if (stride & bit) + break; + bit >>= 1; + } + if (stride & ~bit) + stride = bit << 1; /* not P-o-2, round up */ + } + iowrite16(stride, par->base + LDLAOR); + + /* set display mem start address */ + sbase = (unsigned long)par->fbdma; + if (par->rot) + sbase += (hdcn - 1) * stride; + + iowrite32(sbase, par->base + LDSARU); + + /* + * for DSTN need to set address for lower half. + * I (mlau) don't know which address to set it to, + * so I guessed at (stride * yres/2). + */ + if (((ldmtr & 0x003f) >= LDMTR_DSTN_MONO_8) && + ((ldmtr & 0x003f) <= LDMTR_DSTN_COLOR_16)) { + + dev_dbg(info->dev, " ***** DSTN untested! *****\n"); + + dstn_off = stride; + if (par->rot) + dstn_off *= hdcn >> 1; + else + dstn_off *= vdln >> 1; + + ldsarl = sbase + dstn_off; + } else + ldsarl = 0; + + iowrite32(ldsarl, par->base + LDSARL); /* mem for lower half of DSTN */ + + encode_fix(&info->fix, info, stride); + sh7760fb_check_var(&info->var, info); + + sh7760fb_blank(FB_BLANK_UNBLANK, info); /* panel on! */ + + dev_dbg(info->dev, "hdcn : %6d htcn : %6d\n", hdcn, htcn); + dev_dbg(info->dev, "hsynw : %6d hsynp : %6d\n", hsynw, hsynp); + dev_dbg(info->dev, "vdln : %6d vtln : %6d\n", vdln, vtln); + dev_dbg(info->dev, "vsynw : %6d vsynp : %6d\n", vsynw, vsynp); + dev_dbg(info->dev, "clksrc: %6d clkdiv: %6d\n", + (par->pd->ldickr >> 12) & 3, par->pd->ldickr & 0x1f); + dev_dbg(info->dev, "ldpmmr: 0x%04x ldpspr: 0x%04x\n", par->pd->ldpmmr, + par->pd->ldpspr); + dev_dbg(info->dev, "ldmtr : 0x%04x lddfr : 0x%04x\n", ldmtr, lddfr); + dev_dbg(info->dev, "ldlaor: %ld\n", stride); + dev_dbg(info->dev, "ldsaru: 0x%08lx ldsarl: 0x%08lx\n", sbase, ldsarl); + + return 0; +} + +static struct fb_ops sh7760fb_ops = { + .owner = THIS_MODULE, + .fb_blank = sh7760fb_blank, + .fb_check_var = sh7760fb_check_var, + .fb_setcmap = sh7760fb_setcmap, + .fb_set_par = sh7760fb_set_par, + .fb_fillrect = cfb_fillrect, + .fb_copyarea = cfb_copyarea, + .fb_imageblit = cfb_imageblit, +}; + +static void sh7760fb_free_mem(struct fb_info *info) +{ + struct sh7760fb_par *par = info->par; + + if (!info->screen_base) + return; + + dma_free_coherent(info->dev, info->screen_size, + info->screen_base, par->fbdma); + + par->fbdma = 0; + info->screen_base = NULL; + info->screen_size = 0; +} + +/* allocate the framebuffer memory. This memory must be in Area3, + * (dictated by the DMA engine) and contiguous, at a 512 byte boundary. + */ +static int sh7760fb_alloc_mem(struct fb_info *info) +{ + struct sh7760fb_par *par = info->par; + void *fbmem; + unsigned long vram; + int ret, bpp; + + if (info->screen_base) + return 0; + + /* get color info from register value */ + ret = sh7760fb_get_color_info(info->dev, par->pd->lddfr, &bpp, NULL); + if (ret) { + printk(KERN_ERR "colinfo\n"); + return ret; + } + + /* min VRAM: xres_min = 16, yres_min = 1, bpp = 1: 2byte -> 1 page + max VRAM: xres_max = 1024, yres_max = 1024, bpp = 16: 2MB */ + + vram = info->var.xres * info->var.yres; + if (info->var.grayscale) { + if (bpp == 1) + vram >>= 3; + else if (bpp == 2) + vram >>= 2; + else if (bpp == 4) + vram >>= 1; + } else if (bpp > 8) + vram *= 2; + if ((vram < 1) || (vram > 1024 * 2048)) { + dev_dbg(info->dev, "too much VRAM required. Check settings\n"); + return -ENODEV; + } + + if (vram < PAGE_SIZE) + vram = PAGE_SIZE; + + fbmem = dma_alloc_coherent(info->dev, vram, &par->fbdma, GFP_KERNEL); + + if (!fbmem) + return -ENOMEM; + + if ((par->fbdma & SH7760FB_DMA_MASK) != SH7760FB_DMA_MASK) { + sh7760fb_free_mem(info); + dev_err(info->dev, "kernel gave me memory at 0x%08lx, which is" + "unusable for the LCDC\n", (unsigned long)par->fbdma); + return -ENOMEM; + } + + info->screen_base = fbmem; + info->screen_size = vram; + + return 0; +} + +static int __devinit sh7760fb_probe(struct platform_device *pdev) +{ + struct fb_info *info; + struct resource *res; + struct sh7760fb_par *par; + int ret; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (unlikely(res == NULL)) { + dev_err(&pdev->dev, "invalid resource\n"); + return -EINVAL; + } + + info = framebuffer_alloc(sizeof(struct sh7760fb_par), &pdev->dev); + if (!info) + return -ENOMEM; + + par = info->par; + par->dev = pdev; + + par->pd = pdev->dev.platform_data; + if (!par->pd) { + dev_dbg(info->dev, "no display setup data!\n"); + ret = -ENODEV; + goto out_fb; + } + + par->ioarea = request_mem_region(res->start, + (res->end - res->start), pdev->name); + if (!par->ioarea) { + dev_err(&pdev->dev, "mmio area busy\n"); + ret = -EBUSY; + goto out_fb; + } + + par->base = ioremap_nocache(res->start, res->end - res->start + 1); + if (!par->base) { + dev_err(&pdev->dev, "cannot remap\n"); + ret = -ENODEV; + goto out_res; + } + + iowrite16(0, par->base + LDINTR); /* disable vsync irq */ + par->irq = platform_get_irq(pdev, 0); + if (par->irq >= 0) { + ret = request_irq(par->irq, sh7760fb_irq, 0, + "sh7760-lcdc", &par->vsync); + if (ret) { + dev_err(&pdev->dev, "cannot grab IRQ\n"); + par->irq = -ENXIO; + } else + disable_irq_nosync(par->irq); + } + + fb_videomode_to_var(&info->var, par->pd->def_mode); + + ret = sh7760fb_alloc_mem(info); + if (ret) { + dev_dbg(info->dev, "framebuffer memory allocation failed!\n"); + goto out_unmap; + } + + info->pseudo_palette = par->pseudo_palette; + + /* fixup color register bitpositions. These are fixed by hardware */ + info->var.red.offset = 11; + info->var.red.length = 5; + info->var.red.msb_right = 0; + + info->var.green.offset = 5; + info->var.green.length = 6; + info->var.green.msb_right = 0; + + info->var.blue.offset = 0; + info->var.blue.length = 5; + info->var.blue.msb_right = 0; + + info->var.transp.offset = 0; + info->var.transp.length = 0; + info->var.transp.msb_right = 0; + + /* set the DON2 bit now, before cmap allocation, as it will randomize + * palette memory. + */ + iowrite16(LDCNTR_DON2, par->base + LDCNTR); + info->fbops = &sh7760fb_ops; + + ret = fb_alloc_cmap(&info->cmap, 256, 0); + if (ret) { + dev_dbg(info->dev, "Unable to allocate cmap memory\n"); + goto out_mem; + } + + ret = register_framebuffer(info); + if (ret < 0) { + dev_dbg(info->dev, "cannot register fb!\n"); + goto out_cmap; + } + platform_set_drvdata(pdev, info); + + printk(KERN_INFO "%s: memory at phys 0x%08lx-0x%08lx, size %ld KiB\n", + pdev->name, + (unsigned long)par->fbdma, + (unsigned long)(par->fbdma + info->screen_size - 1), + info->screen_size >> 10); + + return 0; + +out_cmap: + sh7760fb_blank(FB_BLANK_POWERDOWN, info); + fb_dealloc_cmap(&info->cmap); +out_mem: + sh7760fb_free_mem(info); +out_unmap: + if (par->irq >= 0) + free_irq(par->irq, &par->vsync); + iounmap(par->base); +out_res: + release_resource(par->ioarea); + kfree(par->ioarea); +out_fb: + framebuffer_release(info); + return ret; +} + +static int __devexit sh7760fb_remove(struct platform_device *dev) +{ + struct fb_info *info = platform_get_drvdata(dev); + struct sh7760fb_par *par = info->par; + + sh7760fb_blank(FB_BLANK_POWERDOWN, info); + unregister_framebuffer(info); + fb_dealloc_cmap(&info->cmap); + sh7760fb_free_mem(info); + if (par->irq >= 0) + free_irq(par->irq, par); + iounmap(par->base); + release_resource(par->ioarea); + kfree(par->ioarea); + framebuffer_release(info); + platform_set_drvdata(dev, NULL); + + return 0; +} + +static struct platform_driver sh7760_lcdc_driver = { + .driver = { + .name = "sh7760-lcdc", + .owner = THIS_MODULE, + }, + .probe = sh7760fb_probe, + .remove = __devexit_p(sh7760fb_remove), +}; + +static int __init sh7760fb_init(void) +{ + return platform_driver_register(&sh7760_lcdc_driver); +} + +static void __exit sh7760fb_exit(void) +{ + platform_driver_unregister(&sh7760_lcdc_driver); +} + +module_init(sh7760fb_init); +module_exit(sh7760fb_exit); + +MODULE_AUTHOR("Nobuhiro Iwamatsu, Manuel Lauss"); +MODULE_DESCRIPTION("FBdev for SH7760/63 integrated LCD Controller"); +MODULE_LICENSE("GPL"); diff --git a/drivers/video/sh_mobile_lcdcfb.c b/drivers/video/sh_mobile_lcdcfb.c new file mode 100644 index 0000000..f6ef6cc --- /dev/null +++ b/drivers/video/sh_mobile_lcdcfb.c @@ -0,0 +1,725 @@ +/* + * SuperH Mobile LCDC Framebuffer + * + * Copyright (c) 2008 Magnus Damm + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/mm.h> +#include <linux/fb.h> +#include <linux/clk.h> +#include <linux/platform_device.h> +#include <linux/dma-mapping.h> +#include <asm/sh_mobile_lcdc.h> + +#define PALETTE_NR 16 + +struct sh_mobile_lcdc_priv; +struct sh_mobile_lcdc_chan { + struct sh_mobile_lcdc_priv *lcdc; + unsigned long *reg_offs; + unsigned long ldmt1r_value; + unsigned long enabled; /* ME and SE in LDCNT2R */ + struct sh_mobile_lcdc_chan_cfg cfg; + u32 pseudo_palette[PALETTE_NR]; + struct fb_info info; + dma_addr_t dma_handle; +}; + +struct sh_mobile_lcdc_priv { + void __iomem *base; + struct clk *clk; + unsigned long lddckr; + struct sh_mobile_lcdc_chan ch[2]; +}; + +/* shared registers */ +#define _LDDCKR 0x410 +#define _LDDCKSTPR 0x414 +#define _LDINTR 0x468 +#define _LDSR 0x46c +#define _LDCNT1R 0x470 +#define _LDCNT2R 0x474 +#define _LDDDSR 0x47c +#define _LDDWD0R 0x800 +#define _LDDRDR 0x840 +#define _LDDWAR 0x900 +#define _LDDRAR 0x904 + +/* per-channel registers */ +enum { LDDCKPAT1R, LDDCKPAT2R, LDMT1R, LDMT2R, LDMT3R, LDDFR, LDSM1R, + LDSA1R, LDMLSR, LDHCNR, LDHSYNR, LDVLNR, LDVSYNR, LDPMR }; + +static unsigned long lcdc_offs_mainlcd[] = { + [LDDCKPAT1R] = 0x400, + [LDDCKPAT2R] = 0x404, + [LDMT1R] = 0x418, + [LDMT2R] = 0x41c, + [LDMT3R] = 0x420, + [LDDFR] = 0x424, + [LDSM1R] = 0x428, + [LDSA1R] = 0x430, + [LDMLSR] = 0x438, + [LDHCNR] = 0x448, + [LDHSYNR] = 0x44c, + [LDVLNR] = 0x450, + [LDVSYNR] = 0x454, + [LDPMR] = 0x460, +}; + +static unsigned long lcdc_offs_sublcd[] = { + [LDDCKPAT1R] = 0x408, + [LDDCKPAT2R] = 0x40c, + [LDMT1R] = 0x600, + [LDMT2R] = 0x604, + [LDMT3R] = 0x608, + [LDDFR] = 0x60c, + [LDSM1R] = 0x610, + [LDSA1R] = 0x618, + [LDMLSR] = 0x620, + [LDHCNR] = 0x624, + [LDHSYNR] = 0x628, + [LDVLNR] = 0x62c, + [LDVSYNR] = 0x630, + [LDPMR] = 0x63c, +}; + +#define START_LCDC 0x00000001 +#define LCDC_RESET 0x00000100 +#define DISPLAY_BEU 0x00000008 +#define LCDC_ENABLE 0x00000001 + +static void lcdc_write_chan(struct sh_mobile_lcdc_chan *chan, + int reg_nr, unsigned long data) +{ + iowrite32(data, chan->lcdc->base + chan->reg_offs[reg_nr]); +} + +static unsigned long lcdc_read_chan(struct sh_mobile_lcdc_chan *chan, + int reg_nr) +{ + return ioread32(chan->lcdc->base + chan->reg_offs[reg_nr]); +} + +static void lcdc_write(struct sh_mobile_lcdc_priv *priv, + unsigned long reg_offs, unsigned long data) +{ + iowrite32(data, priv->base + reg_offs); +} + +static unsigned long lcdc_read(struct sh_mobile_lcdc_priv *priv, + unsigned long reg_offs) +{ + return ioread32(priv->base + reg_offs); +} + +static void lcdc_wait_bit(struct sh_mobile_lcdc_priv *priv, + unsigned long reg_offs, + unsigned long mask, unsigned long until) +{ + while ((lcdc_read(priv, reg_offs) & mask) != until) + cpu_relax(); +} + +static int lcdc_chan_is_sublcd(struct sh_mobile_lcdc_chan *chan) +{ + return chan->cfg.chan == LCDC_CHAN_SUBLCD; +} + +static void lcdc_sys_write_index(void *handle, unsigned long data) +{ + struct sh_mobile_lcdc_chan *ch = handle; + + lcdc_write(ch->lcdc, _LDDWD0R, data | 0x10000000); + lcdc_wait_bit(ch->lcdc, _LDSR, 2, 0); + lcdc_write(ch->lcdc, _LDDWAR, 1 | (lcdc_chan_is_sublcd(ch) ? 2 : 0)); +} + +static void lcdc_sys_write_data(void *handle, unsigned long data) +{ + struct sh_mobile_lcdc_chan *ch = handle; + + lcdc_write(ch->lcdc, _LDDWD0R, data | 0x11000000); + lcdc_wait_bit(ch->lcdc, _LDSR, 2, 0); + lcdc_write(ch->lcdc, _LDDWAR, 1 | (lcdc_chan_is_sublcd(ch) ? 2 : 0)); +} + +static unsigned long lcdc_sys_read_data(void *handle) +{ + struct sh_mobile_lcdc_chan *ch = handle; + + lcdc_write(ch->lcdc, _LDDRDR, 0x01000000); + lcdc_wait_bit(ch->lcdc, _LDSR, 2, 0); + lcdc_write(ch->lcdc, _LDDRAR, 1 | (lcdc_chan_is_sublcd(ch) ? 2 : 0)); + udelay(1); + + return lcdc_read(ch->lcdc, _LDDRDR) & 0xffff; +} + +struct sh_mobile_lcdc_sys_bus_ops sh_mobile_lcdc_sys_bus_ops = { + lcdc_sys_write_index, + lcdc_sys_write_data, + lcdc_sys_read_data, +}; + +static void sh_mobile_lcdc_start_stop(struct sh_mobile_lcdc_priv *priv, + int start) +{ + unsigned long tmp = lcdc_read(priv, _LDCNT2R); + int k; + + /* start or stop the lcdc */ + if (start) + lcdc_write(priv, _LDCNT2R, tmp | START_LCDC); + else + lcdc_write(priv, _LDCNT2R, tmp & ~START_LCDC); + + /* wait until power is applied/stopped on all channels */ + for (k = 0; k < ARRAY_SIZE(priv->ch); k++) + if (lcdc_read(priv, _LDCNT2R) & priv->ch[k].enabled) + while (1) { + tmp = lcdc_read_chan(&priv->ch[k], LDPMR) & 3; + if (start && tmp == 3) + break; + if (!start && tmp == 0) + break; + cpu_relax(); + } + + if (!start) + lcdc_write(priv, _LDDCKSTPR, 1); /* stop dotclock */ +} + +static int sh_mobile_lcdc_start(struct sh_mobile_lcdc_priv *priv) +{ + struct sh_mobile_lcdc_chan *ch; + struct fb_videomode *lcd_cfg; + struct sh_mobile_lcdc_board_cfg *board_cfg; + unsigned long tmp; + int k, m; + int ret = 0; + + /* reset */ + lcdc_write(priv, _LDCNT2R, lcdc_read(priv, _LDCNT2R) | LCDC_RESET); + lcdc_wait_bit(priv, _LDCNT2R, LCDC_RESET, 0); + + /* enable LCDC channels */ + tmp = lcdc_read(priv, _LDCNT2R); + tmp |= priv->ch[0].enabled; + tmp |= priv->ch[1].enabled; + lcdc_write(priv, _LDCNT2R, tmp); + + /* read data from external memory, avoid using the BEU for now */ + lcdc_write(priv, _LDCNT2R, lcdc_read(priv, _LDCNT2R) & ~DISPLAY_BEU); + + /* stop the lcdc first */ + sh_mobile_lcdc_start_stop(priv, 0); + + /* configure clocks */ + tmp = priv->lddckr; + for (k = 0; k < ARRAY_SIZE(priv->ch); k++) { + ch = &priv->ch[k]; + + if (!priv->ch[k].enabled) + continue; + + m = ch->cfg.clock_divider; + if (!m) + continue; + + if (m == 1) + m = 1 << 6; + tmp |= m << (lcdc_chan_is_sublcd(ch) ? 8 : 0); + + lcdc_write_chan(ch, LDDCKPAT1R, 0x00000000); + lcdc_write_chan(ch, LDDCKPAT2R, (1 << (m/2)) - 1); + } + + lcdc_write(priv, _LDDCKR, tmp); + + /* start dotclock again */ + lcdc_write(priv, _LDDCKSTPR, 0); + lcdc_wait_bit(priv, _LDDCKSTPR, ~0, 0); + + /* interrupts are disabled */ + lcdc_write(priv, _LDINTR, 0); + + for (k = 0; k < ARRAY_SIZE(priv->ch); k++) { + ch = &priv->ch[k]; + lcd_cfg = &ch->cfg.lcd_cfg; + + if (!ch->enabled) + continue; + + tmp = ch->ldmt1r_value; + tmp |= (lcd_cfg->sync & FB_SYNC_VERT_HIGH_ACT) ? 0 : 1 << 28; + tmp |= (lcd_cfg->sync & FB_SYNC_HOR_HIGH_ACT) ? 0 : 1 << 27; + lcdc_write_chan(ch, LDMT1R, tmp); + + /* setup SYS bus */ + lcdc_write_chan(ch, LDMT2R, ch->cfg.sys_bus_cfg.ldmt2r); + lcdc_write_chan(ch, LDMT3R, ch->cfg.sys_bus_cfg.ldmt3r); + + /* horizontal configuration */ + tmp = lcd_cfg->xres + lcd_cfg->hsync_len; + tmp += lcd_cfg->left_margin; + tmp += lcd_cfg->right_margin; + tmp /= 8; /* HTCN */ + tmp |= (lcd_cfg->xres / 8) << 16; /* HDCN */ + lcdc_write_chan(ch, LDHCNR, tmp); + + tmp = lcd_cfg->xres; + tmp += lcd_cfg->right_margin; + tmp /= 8; /* HSYNP */ + tmp |= (lcd_cfg->hsync_len / 8) << 16; /* HSYNW */ + lcdc_write_chan(ch, LDHSYNR, tmp); + + /* power supply */ + lcdc_write_chan(ch, LDPMR, 0); + + /* vertical configuration */ + tmp = lcd_cfg->yres + lcd_cfg->vsync_len; + tmp += lcd_cfg->upper_margin; + tmp += lcd_cfg->lower_margin; /* VTLN */ + tmp |= lcd_cfg->yres << 16; /* VDLN */ + lcdc_write_chan(ch, LDVLNR, tmp); + + tmp = lcd_cfg->yres; + tmp += lcd_cfg->lower_margin; /* VSYNP */ + tmp |= lcd_cfg->vsync_len << 16; /* VSYNW */ + lcdc_write_chan(ch, LDVSYNR, tmp); + + board_cfg = &ch->cfg.board_cfg; + if (board_cfg->setup_sys) + ret = board_cfg->setup_sys(board_cfg->board_data, ch, + &sh_mobile_lcdc_sys_bus_ops); + if (ret) + return ret; + } + + /* --- display_lcdc_data() --- */ + lcdc_write(priv, _LDINTR, 0x00000f00); + + /* word and long word swap */ + lcdc_write(priv, _LDDDSR, lcdc_read(priv, _LDDDSR) | 6); + + for (k = 0; k < ARRAY_SIZE(priv->ch); k++) { + ch = &priv->ch[k]; + + if (!priv->ch[k].enabled) + continue; + + /* set bpp format in PKF[4:0] */ + tmp = lcdc_read_chan(ch, LDDFR); + tmp &= ~(0x0001001f); + tmp |= (priv->ch[k].info.var.bits_per_pixel == 16) ? 3 : 0; + lcdc_write_chan(ch, LDDFR, tmp); + + /* point out our frame buffer */ + lcdc_write_chan(ch, LDSA1R, ch->info.fix.smem_start); + + /* set line size */ + lcdc_write_chan(ch, LDMLSR, ch->info.fix.line_length); + + /* continuous read mode */ + lcdc_write_chan(ch, LDSM1R, 0); + } + + /* display output */ + lcdc_write(priv, _LDCNT1R, LCDC_ENABLE); + + /* start the lcdc */ + sh_mobile_lcdc_start_stop(priv, 1); + + /* tell the board code to enable the panel */ + for (k = 0; k < ARRAY_SIZE(priv->ch); k++) { + ch = &priv->ch[k]; + board_cfg = &ch->cfg.board_cfg; + if (board_cfg->display_on) + board_cfg->display_on(board_cfg->board_data); + } + + return 0; +} + +static void sh_mobile_lcdc_stop(struct sh_mobile_lcdc_priv *priv) +{ + struct sh_mobile_lcdc_chan *ch; + struct sh_mobile_lcdc_board_cfg *board_cfg; + int k; + + /* tell the board code to disable the panel */ + for (k = 0; k < ARRAY_SIZE(priv->ch); k++) { + ch = &priv->ch[k]; + board_cfg = &ch->cfg.board_cfg; + if (board_cfg->display_off) + board_cfg->display_off(board_cfg->board_data); + } + + /* stop the lcdc */ + sh_mobile_lcdc_start_stop(priv, 0); +} + +static int sh_mobile_lcdc_check_interface(struct sh_mobile_lcdc_chan *ch) +{ + int ifm, miftyp; + + switch (ch->cfg.interface_type) { + case RGB8: ifm = 0; miftyp = 0; break; + case RGB9: ifm = 0; miftyp = 4; break; + case RGB12A: ifm = 0; miftyp = 5; break; + case RGB12B: ifm = 0; miftyp = 6; break; + case RGB16: ifm = 0; miftyp = 7; break; + case RGB18: ifm = 0; miftyp = 10; break; + case RGB24: ifm = 0; miftyp = 11; break; + case SYS8A: ifm = 1; miftyp = 0; break; + case SYS8B: ifm = 1; miftyp = 1; break; + case SYS8C: ifm = 1; miftyp = 2; break; + case SYS8D: ifm = 1; miftyp = 3; break; + case SYS9: ifm = 1; miftyp = 4; break; + case SYS12: ifm = 1; miftyp = 5; break; + case SYS16A: ifm = 1; miftyp = 7; break; + case SYS16B: ifm = 1; miftyp = 8; break; + case SYS16C: ifm = 1; miftyp = 9; break; + case SYS18: ifm = 1; miftyp = 10; break; + case SYS24: ifm = 1; miftyp = 11; break; + default: goto bad; + } + + /* SUBLCD only supports SYS interface */ + if (lcdc_chan_is_sublcd(ch)) { + if (ifm == 0) + goto bad; + else + ifm = 0; + } + + ch->ldmt1r_value = (ifm << 12) | miftyp; + return 0; + bad: + return -EINVAL; +} + +static int sh_mobile_lcdc_setup_clocks(struct device *dev, int clock_source, + struct sh_mobile_lcdc_priv *priv) +{ + char *str; + int icksel; + + switch (clock_source) { + case LCDC_CLK_BUS: str = "bus_clk"; icksel = 0; break; + case LCDC_CLK_PERIPHERAL: str = "peripheral_clk"; icksel = 1; break; + case LCDC_CLK_EXTERNAL: str = NULL; icksel = 2; break; + default: + return -EINVAL; + } + + priv->lddckr = icksel << 16; + + if (str) { + priv->clk = clk_get(dev, str); + if (IS_ERR(priv->clk)) { + dev_err(dev, "cannot get clock %s\n", str); + return PTR_ERR(priv->clk); + } + + clk_enable(priv->clk); + } + + return 0; +} + +static int sh_mobile_lcdc_setcolreg(u_int regno, + u_int red, u_int green, u_int blue, + u_int transp, struct fb_info *info) +{ + u32 *palette = info->pseudo_palette; + + if (regno >= PALETTE_NR) + return -EINVAL; + + /* only FB_VISUAL_TRUECOLOR supported */ + + red >>= 16 - info->var.red.length; + green >>= 16 - info->var.green.length; + blue >>= 16 - info->var.blue.length; + transp >>= 16 - info->var.transp.length; + + palette[regno] = (red << info->var.red.offset) | + (green << info->var.green.offset) | + (blue << info->var.blue.offset) | + (transp << info->var.transp.offset); + + return 0; +} + +static struct fb_fix_screeninfo sh_mobile_lcdc_fix = { + .id = "SH Mobile LCDC", + .type = FB_TYPE_PACKED_PIXELS, + .visual = FB_VISUAL_TRUECOLOR, + .accel = FB_ACCEL_NONE, +}; + +static struct fb_ops sh_mobile_lcdc_ops = { + .fb_setcolreg = sh_mobile_lcdc_setcolreg, + .fb_fillrect = cfb_fillrect, + .fb_copyarea = cfb_copyarea, + .fb_imageblit = cfb_imageblit, +}; + +static int sh_mobile_lcdc_set_bpp(struct fb_var_screeninfo *var, int bpp) +{ + switch (bpp) { + case 16: /* PKF[4:0] = 00011 - RGB 565 */ + var->red.offset = 11; + var->red.length = 5; + var->green.offset = 5; + var->green.length = 6; + var->blue.offset = 0; + var->blue.length = 5; + var->transp.offset = 0; + var->transp.length = 0; + break; + + case 32: /* PKF[4:0] = 00000 - RGB 888 + * sh7722 pdf says 00RRGGBB but reality is GGBB00RR + * this may be because LDDDSR has word swap enabled.. + */ + var->red.offset = 0; + var->red.length = 8; + var->green.offset = 24; + var->green.length = 8; + var->blue.offset = 16; + var->blue.length = 8; + var->transp.offset = 0; + var->transp.length = 0; + break; + default: + return -EINVAL; + } + var->bits_per_pixel = bpp; + var->red.msb_right = 0; + var->green.msb_right = 0; + var->blue.msb_right = 0; + var->transp.msb_right = 0; + return 0; +} + +static int sh_mobile_lcdc_remove(struct platform_device *pdev); + +static int __init sh_mobile_lcdc_probe(struct platform_device *pdev) +{ + struct fb_info *info; + struct sh_mobile_lcdc_priv *priv; + struct sh_mobile_lcdc_info *pdata; + struct sh_mobile_lcdc_chan_cfg *cfg; + struct resource *res; + int error; + void *buf; + int i, j; + + if (!pdev->dev.platform_data) { + dev_err(&pdev->dev, "no platform data defined\n"); + error = -EINVAL; + goto err0; + } + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (res == NULL) { + dev_err(&pdev->dev, "cannot find IO resource\n"); + error = -ENOENT; + goto err0; + } + + priv = kzalloc(sizeof(*priv), GFP_KERNEL); + if (!priv) { + dev_err(&pdev->dev, "cannot allocate device data\n"); + error = -ENOMEM; + goto err0; + } + + platform_set_drvdata(pdev, priv); + pdata = pdev->dev.platform_data; + + j = 0; + for (i = 0; i < ARRAY_SIZE(pdata->ch); i++) { + priv->ch[j].lcdc = priv; + memcpy(&priv->ch[j].cfg, &pdata->ch[i], sizeof(pdata->ch[i])); + + error = sh_mobile_lcdc_check_interface(&priv->ch[i]); + if (error) { + dev_err(&pdev->dev, "unsupported interface type\n"); + goto err1; + } + + switch (pdata->ch[i].chan) { + case LCDC_CHAN_MAINLCD: + priv->ch[j].enabled = 1 << 1; + priv->ch[j].reg_offs = lcdc_offs_mainlcd; + j++; + break; + case LCDC_CHAN_SUBLCD: + priv->ch[j].enabled = 1 << 2; + priv->ch[j].reg_offs = lcdc_offs_sublcd; + j++; + break; + } + } + + if (!j) { + dev_err(&pdev->dev, "no channels defined\n"); + error = -EINVAL; + goto err1; + } + + error = sh_mobile_lcdc_setup_clocks(&pdev->dev, + pdata->clock_source, priv); + if (error) { + dev_err(&pdev->dev, "unable to setup clocks\n"); + goto err1; + } + + priv->lddckr = pdata->lddckr; + priv->base = ioremap_nocache(res->start, (res->end - res->start) + 1); + + for (i = 0; i < j; i++) { + info = &priv->ch[i].info; + cfg = &priv->ch[i].cfg; + + info->fbops = &sh_mobile_lcdc_ops; + info->var.xres = info->var.xres_virtual = cfg->lcd_cfg.xres; + info->var.yres = info->var.yres_virtual = cfg->lcd_cfg.yres; + info->var.activate = FB_ACTIVATE_NOW; + error = sh_mobile_lcdc_set_bpp(&info->var, cfg->bpp); + if (error) + break; + + info->fix = sh_mobile_lcdc_fix; + info->fix.line_length = cfg->lcd_cfg.xres * (cfg->bpp / 8); + info->fix.smem_len = info->fix.line_length * cfg->lcd_cfg.yres; + + buf = dma_alloc_coherent(&pdev->dev, info->fix.smem_len, + &priv->ch[i].dma_handle, GFP_KERNEL); + if (!buf) { + dev_err(&pdev->dev, "unable to allocate buffer\n"); + error = -ENOMEM; + break; + } + + info->pseudo_palette = &priv->ch[i].pseudo_palette; + info->flags = FBINFO_FLAG_DEFAULT; + + error = fb_alloc_cmap(&info->cmap, PALETTE_NR, 0); + if (error < 0) { + dev_err(&pdev->dev, "unable to allocate cmap\n"); + dma_free_coherent(&pdev->dev, info->fix.smem_len, + buf, priv->ch[i].dma_handle); + break; + } + + memset(buf, 0, info->fix.smem_len); + info->fix.smem_start = priv->ch[i].dma_handle; + info->screen_base = buf; + info->device = &pdev->dev; + } + + if (error) + goto err1; + + error = sh_mobile_lcdc_start(priv); + if (error) { + dev_err(&pdev->dev, "unable to start hardware\n"); + goto err1; + } + + for (i = 0; i < j; i++) { + error = register_framebuffer(&priv->ch[i].info); + if (error < 0) + goto err1; + } + + for (i = 0; i < j; i++) { + info = &priv->ch[i].info; + dev_info(info->dev, + "registered %s/%s as %dx%d %dbpp.\n", + pdev->name, + (priv->ch[i].cfg.chan == LCDC_CHAN_MAINLCD) ? + "mainlcd" : "sublcd", + (int) priv->ch[i].cfg.lcd_cfg.xres, + (int) priv->ch[i].cfg.lcd_cfg.yres, + priv->ch[i].cfg.bpp); + } + + return 0; + err1: + sh_mobile_lcdc_remove(pdev); + err0: + return error; +} + +static int sh_mobile_lcdc_remove(struct platform_device *pdev) +{ + struct sh_mobile_lcdc_priv *priv = platform_get_drvdata(pdev); + struct fb_info *info; + int i; + + for (i = 0; i < ARRAY_SIZE(priv->ch); i++) + if (priv->ch[i].info.dev) + unregister_framebuffer(&priv->ch[i].info); + + sh_mobile_lcdc_stop(priv); + + for (i = 0; i < ARRAY_SIZE(priv->ch); i++) { + info = &priv->ch[i].info; + + if (!info->device) + continue; + + dma_free_coherent(&pdev->dev, info->fix.smem_len, + info->screen_base, priv->ch[i].dma_handle); + fb_dealloc_cmap(&info->cmap); + } + + if (priv->clk) { + clk_disable(priv->clk); + clk_put(priv->clk); + } + + if (priv->base) + iounmap(priv->base); + + kfree(priv); + return 0; +} + +static struct platform_driver sh_mobile_lcdc_driver = { + .driver = { + .name = "sh_mobile_lcdc_fb", + .owner = THIS_MODULE, + }, + .probe = sh_mobile_lcdc_probe, + .remove = sh_mobile_lcdc_remove, +}; + +static int __init sh_mobile_lcdc_init(void) +{ + return platform_driver_register(&sh_mobile_lcdc_driver); +} + +static void __exit sh_mobile_lcdc_exit(void) +{ + platform_driver_unregister(&sh_mobile_lcdc_driver); +} + +module_init(sh_mobile_lcdc_init); +module_exit(sh_mobile_lcdc_exit); + +MODULE_DESCRIPTION("SuperH Mobile LCDC Framebuffer driver"); +MODULE_AUTHOR("Magnus Damm <damm@opensource.se>"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/video/sis/init.h b/drivers/video/sis/init.h index f40a680..b96005c 100644 --- a/drivers/video/sis/init.h +++ b/drivers/video/sis/init.h @@ -73,7 +73,6 @@ #ifdef SIS_CP #undef SIS_CP #endif -#include <linux/version.h> #include <linux/types.h> #include <asm/io.h> #include <linux/fb.h> diff --git a/drivers/video/sis/init301.h b/drivers/video/sis/init301.h index 7708e1e..51d9922 100644 --- a/drivers/video/sis/init301.h +++ b/drivers/video/sis/init301.h @@ -67,7 +67,6 @@ #ifdef SIS_CP #undef SIS_CP #endif -#include <linux/version.h> #include <linux/types.h> #include <asm/io.h> #include <linux/fb.h> diff --git a/drivers/video/sis/initextlfb.c b/drivers/video/sis/initextlfb.c index 47a3350..99c04a4 100644 --- a/drivers/video/sis/initextlfb.c +++ b/drivers/video/sis/initextlfb.c @@ -30,7 +30,6 @@ #include "vgatypes.h" #include "vstruct.h" -#include <linux/version.h> #include <linux/types.h> #include <linux/fb.h> diff --git a/drivers/video/sis/osdef.h b/drivers/video/sis/osdef.h index c149278..6ff8f98 100644 --- a/drivers/video/sis/osdef.h +++ b/drivers/video/sis/osdef.h @@ -87,7 +87,6 @@ /**********************************************************************/ #ifdef SIS_LINUX_KERNEL -#include <linux/version.h> #ifdef CONFIG_FB_SIS_300 #define SIS300 diff --git a/drivers/video/sis/sis.h b/drivers/video/sis/sis.h index a14e822..7c5710e 100644 --- a/drivers/video/sis/sis.h +++ b/drivers/video/sis/sis.h @@ -24,8 +24,6 @@ #ifndef _SIS_H_ #define _SIS_H_ -#include <linux/version.h> - #include "osdef.h" #include <video/sisfb.h> @@ -42,16 +40,6 @@ #define SIS_NEW_CONFIG_COMPAT #endif /* CONFIG_COMPAT */ -#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,8) -#define SIS_IOTYPE1 void __iomem -#define SIS_IOTYPE2 __iomem -#define SISINITSTATIC static -#else -#define SIS_IOTYPE1 unsigned char -#define SIS_IOTYPE2 -#define SISINITSTATIC -#endif - #undef SISFBDEBUG #ifdef SISFBDEBUG @@ -505,8 +493,8 @@ struct sis_video_info { unsigned long UMAsize, LFBsize; - SIS_IOTYPE1 *video_vbase; - SIS_IOTYPE1 *mmio_vbase; + void __iomem *video_vbase; + void __iomem *mmio_vbase; unsigned char *bios_abase; @@ -533,8 +521,8 @@ struct sis_video_info { int sisfb_nocrt2rate; u32 heapstart; /* offset */ - SIS_IOTYPE1 *sisfb_heap_start; /* address */ - SIS_IOTYPE1 *sisfb_heap_end; /* address */ + void __iomem *sisfb_heap_start; /* address */ + void __iomem *sisfb_heap_end; /* address */ u32 sisfb_heap_size; int havenoheap; @@ -612,7 +600,7 @@ struct sis_video_info { u8 detectedpdca; u8 detectedlcda; - SIS_IOTYPE1 *hwcursor_vbase; + void __iomem *hwcursor_vbase; int chronteltype; int tvxpos, tvypos; diff --git a/drivers/video/sis/sis_accel.c b/drivers/video/sis/sis_accel.c index 7addf91..ceb434c 100644 --- a/drivers/video/sis/sis_accel.c +++ b/drivers/video/sis/sis_accel.c @@ -28,7 +28,6 @@ * for more information and updates) */ -#include <linux/version.h> #include <linux/module.h> #include <linux/kernel.h> #include <linux/fb.h> diff --git a/drivers/video/sis/sis_main.c b/drivers/video/sis/sis_main.c index b934384..346d645 100644 --- a/drivers/video/sis/sis_main.c +++ b/drivers/video/sis/sis_main.c @@ -33,7 +33,6 @@ * */ -#include <linux/version.h> #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/kernel.h> @@ -41,13 +40,7 @@ #include <linux/errno.h> #include <linux/string.h> #include <linux/mm.h> - -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,17) -#include <linux/tty.h> -#else #include <linux/screen_info.h> -#endif - #include <linux/slab.h> #include <linux/fb.h> #include <linux/selection.h> @@ -1167,11 +1160,7 @@ sisfb_set_mode(struct sis_video_info *ivideo, int clrscrn) unsigned short modeno = ivideo->mode_no; /* >=2.6.12's fbcon clears the screen anyway */ -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,12) - if(!clrscrn) modeno |= 0x80; -#else modeno |= 0x80; -#endif outSISIDXREG(SISSR, IND_SIS_PASSWORD, SIS_PASSWORD); @@ -1436,11 +1425,8 @@ sisfb_set_par(struct fb_info *info) if((err = sisfb_do_set_var(&info->var, 1, info))) return err; -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,10) - sisfb_get_fix(&info->fix, info->currcon, info); -#else sisfb_get_fix(&info->fix, -1, info); -#endif + return 0; } @@ -1676,14 +1662,8 @@ sisfb_blank(int blank, struct fb_info *info) /* ----------- FBDev related routines for all series ---------- */ -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,15) static int sisfb_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg) -#else -static int sisfb_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg, - struct fb_info *info) -#endif { struct sis_video_info *ivideo = (struct sis_video_info *)info->par; struct sis_memreq sismemreq; @@ -3986,8 +3966,7 @@ sisfb_handle_command(struct sis_video_info *ivideo, struct sisfb_cmd *sisfb_comm } #ifndef MODULE -SISINITSTATIC int __init -sisfb_setup(char *options) +static int __init sisfb_setup(char *options) { char *this_opt; @@ -4086,9 +4065,9 @@ sisfb_setup(char *options) #endif static int __devinit -sisfb_check_rom(SIS_IOTYPE1 *rom_base, struct sis_video_info *ivideo) +sisfb_check_rom(void __iomem *rom_base, struct sis_video_info *ivideo) { - SIS_IOTYPE1 *rom; + void __iomem *rom; int romptr; if((readb(rom_base) != 0x55) || (readb(rom_base + 1) != 0xaa)) @@ -4117,10 +4096,9 @@ static unsigned char * __devinit sisfb_find_rom(struct pci_dev *pdev) { struct sis_video_info *ivideo = pci_get_drvdata(pdev); - SIS_IOTYPE1 *rom_base; + void __iomem *rom_base; unsigned char *myrombase = NULL; u32 temp; -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,11) size_t romsize; /* First, try the official pci ROM functions (except @@ -4151,7 +4129,6 @@ sisfb_find_rom(struct pci_dev *pdev) } if(myrombase) return myrombase; -#endif /* Otherwise do it the conventional way. */ @@ -4225,7 +4202,7 @@ sisfb_post_map_vram(struct sis_video_info *ivideo, unsigned int *mapsize, static int __devinit sisfb_post_300_buswidth(struct sis_video_info *ivideo) { - SIS_IOTYPE1 *FBAddress = ivideo->video_vbase; + void __iomem *FBAddress = ivideo->video_vbase; unsigned short temp; unsigned char reg; int i, j; @@ -4273,7 +4250,7 @@ sisfb_post_300_rwtest(struct sis_video_info *ivideo, int iteration, int buswidth int PseudoRankCapacity, int PseudoAdrPinCount, unsigned int mapsize) { - SIS_IOTYPE1 *FBAddr = ivideo->video_vbase; + void __iomem *FBAddr = ivideo->video_vbase; unsigned short sr14; unsigned int k, RankCapacity, PageCapacity, BankNumHigh, BankNumMid; unsigned int PhysicalAdrOtherPage, PhysicalAdrHigh, PhysicalAdrHalfPage; @@ -5829,7 +5806,7 @@ sisfb_probe(struct pci_dev *pdev, const struct pci_device_id *ent) ivideo->engineok = 0; ivideo->sisfb_was_boot_device = 0; -#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,12)) + if(pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW) { if(ivideo->sisvga_enabled) ivideo->sisfb_was_boot_device = 1; @@ -5840,7 +5817,6 @@ sisfb_probe(struct pci_dev *pdev, const struct pci_device_id *ent) "as the primary VGA device\n"); } } -#endif ivideo->sisfb_parm_mem = sisfb_parm_mem; ivideo->sisfb_accel = sisfb_accel; @@ -6010,7 +5986,7 @@ sisfb_probe(struct pci_dev *pdev, const struct pci_device_id *ent) ivideo->modeprechange = reg & 0x7f; } else if(ivideo->sisvga_enabled) { #if defined(__i386__) || defined(__x86_64__) - unsigned char SIS_IOTYPE2 *tt = ioremap(0x400, 0x100); + unsigned char __iomem *tt = ioremap(0x400, 0x100); if(tt) { ivideo->modeprechange = readb(tt + 0x49); iounmap(tt); @@ -6503,7 +6479,7 @@ static struct pci_driver sisfb_driver = { .remove = __devexit_p(sisfb_remove) }; -SISINITSTATIC int __init sisfb_init(void) +static int __init sisfb_init(void) { #ifndef MODULE char *options = NULL; diff --git a/drivers/video/sis/sis_main.h b/drivers/video/sis/sis_main.h index 3e3b7fa..9540e97 100644 --- a/drivers/video/sis/sis_main.h +++ b/drivers/video/sis/sis_main.h @@ -665,11 +665,11 @@ static struct _customttable { /* Interface used by the world */ #ifndef MODULE -SISINITSTATIC int sisfb_setup(char *options); +static int sisfb_setup(char *options); #endif /* Interface to the low level console driver */ -SISINITSTATIC int sisfb_init(void); +static int sisfb_init(void); /* fbdev routines */ static int sisfb_get_fix(struct fb_fix_screeninfo *fix, int con, diff --git a/drivers/video/sis/vgatypes.h b/drivers/video/sis/vgatypes.h index b532fbd..81a22ea 100644 --- a/drivers/video/sis/vgatypes.h +++ b/drivers/video/sis/vgatypes.h @@ -53,10 +53,6 @@ #ifndef _VGATYPES_H_ #define _VGATYPES_H_ -#ifdef SIS_LINUX_KERNEL -#include <linux/version.h> -#endif - #define SISIOMEMTYPE #ifdef SIS_LINUX_KERNEL diff --git a/drivers/video/skeletonfb.c b/drivers/video/skeletonfb.c index 6232145..df53365 100644 --- a/drivers/video/skeletonfb.c +++ b/drivers/video/skeletonfb.c @@ -675,13 +675,13 @@ static struct fb_ops xxxfb_ops = { * Initialization */ -/* static int __init xxfb_probe (struct device *device) -- for platform devs */ +/* static int __init xxfb_probe (struct platform_device *pdev) -- for platform devs */ static int __devinit xxxfb_probe(struct pci_dev *dev, const struct pci_device_id *ent) { struct fb_info *info; struct xxx_par *par; - struct device* device = &dev->dev; /* for pci drivers */ + struct device *device = &dev->dev; /* or &pdev->dev */ int cmap_len, retval; /* @@ -824,18 +824,18 @@ static int __devinit xxxfb_probe(struct pci_dev *dev, return -EINVAL; printk(KERN_INFO "fb%d: %s frame buffer device\n", info->node, info->fix.id); - pci_set_drvdata(dev, info); /* or dev_set_drvdata(device, info) */ + pci_set_drvdata(dev, info); /* or platform_set_drvdata(pdev, info) */ return 0; } /* * Cleanup */ -/* static void __devexit xxxfb_remove(struct device *device) */ +/* static void __devexit xxxfb_remove(struct platform_device *pdev) */ static void __devexit xxxfb_remove(struct pci_dev *dev) { struct fb_info *info = pci_get_drvdata(dev); - /* or dev_get_drvdata(device); */ + /* or platform_get_drvdata(pdev); */ if (info) { unregister_framebuffer(info); @@ -961,18 +961,17 @@ static int xxxfb_resume(struct platform_dev *dev) #define xxxfb_resume NULL #endif /* CONFIG_PM */ -static struct device_driver xxxfb_driver = { - .name = "xxxfb", - .bus = &platform_bus_type, +static struct platform_device_driver xxxfb_driver = { .probe = xxxfb_probe, .remove = xxxfb_remove, .suspend = xxxfb_suspend, /* optional but recommended */ .resume = xxxfb_resume, /* optional but recommended */ + .driver = { + .name = "xxxfb", + }, }; -static struct platform_device xxxfb_device = { - .name = "xxxfb", -}; +static struct platform_device *xxxfb_device; #ifndef MODULE /* @@ -1002,12 +1001,16 @@ static int __init xxxfb_init(void) return -ENODEV; xxxfb_setup(option); #endif - ret = driver_register(&xxxfb_driver); + ret = platform_driver_register(&xxxfb_driver); if (!ret) { - ret = platform_device_register(&xxxfb_device); - if (ret) - driver_unregister(&xxxfb_driver); + xxxfb_device = platform_device_register_simple("xxxfb", 0, + NULL, 0); + + if (IS_ERR(xxxfb_device)) { + platform_driver_unregister(&xxxfb_driver); + ret = PTR_ERR(xxxfb_device); + } } return ret; @@ -1015,8 +1018,8 @@ static int __init xxxfb_init(void) static void __exit xxxfb_exit(void) { - platform_device_unregister(&xxxfb_device); - driver_unregister(&xxxfb_driver); + platform_device_unregister(xxxfb_device); + platform_driver_unregister(&xxxfb_driver); } #endif /* CONFIG_PCI */ diff --git a/drivers/video/sm501fb.c b/drivers/video/sm501fb.c index 15d4a76..f94ae84 100644 --- a/drivers/video/sm501fb.c +++ b/drivers/video/sm501fb.c @@ -48,10 +48,15 @@ enum sm501_controller { HEAD_PANEL = 1, }; -/* SM501 memory address */ +/* SM501 memory address. + * + * This structure is used to track memory usage within the SM501 framebuffer + * allocation. The sm_addr field is stored as an offset as it is often used + * against both the physical and mapped addresses. + */ struct sm501_mem { unsigned long size; - unsigned long sm_addr; + unsigned long sm_addr; /* offset from base of sm501 fb. */ void __iomem *k_addr; }; @@ -142,31 +147,68 @@ static inline void sm501fb_sync_regs(struct sm501fb_info *info) static int sm501_alloc_mem(struct sm501fb_info *inf, struct sm501_mem *mem, unsigned int why, size_t size) { - unsigned int ptr = 0; + struct sm501fb_par *par; + struct fb_info *fbi; + unsigned int ptr; + unsigned int end; switch (why) { case SM501_MEMF_CURSOR: ptr = inf->fbmem_len - size; - inf->fbmem_len = ptr; + inf->fbmem_len = ptr; /* adjust available memory. */ break; case SM501_MEMF_PANEL: ptr = inf->fbmem_len - size; - if (ptr < inf->fb[0]->fix.smem_len) + fbi = inf->fb[HEAD_CRT]; + + /* round down, some programs such as directfb do not draw + * 0,0 correctly unless the start is aligned to a page start. + */ + + if (ptr > 0) + ptr &= ~(PAGE_SIZE - 1); + + if (fbi && ptr < fbi->fix.smem_len) + return -ENOMEM; + + if (ptr < 0) return -ENOMEM; break; case SM501_MEMF_CRT: ptr = 0; + + /* check to see if we have panel memory allocated + * which would put an limit on available memory. */ + + fbi = inf->fb[HEAD_PANEL]; + if (fbi) { + par = fbi->par; + end = par->screen.k_addr ? par->screen.sm_addr : inf->fbmem_len; + } else + end = inf->fbmem_len; + + if ((ptr + size) > end) + return -ENOMEM; + break; case SM501_MEMF_ACCEL: - ptr = inf->fb[0]->fix.smem_len; + fbi = inf->fb[HEAD_CRT]; + ptr = fbi ? fbi->fix.smem_len : 0; + + fbi = inf->fb[HEAD_PANEL]; + if (fbi) { + par = fbi->par; + end = par->screen.sm_addr; + } else + end = inf->fbmem_len; - if ((ptr + size) > - (inf->fb[1]->fix.smem_start - inf->fbmem_res->start)) + if ((ptr + size) > end) return -ENOMEM; + break; default: @@ -663,15 +705,25 @@ static void sm501fb_panel_power(struct sm501fb_info *fbi, int to) sm501fb_sync_regs(fbi); mdelay(10); + /* VBIASEN */ + if (!(pd->flags & SM501FB_FLAG_PANEL_NO_VBIASEN)) { - control |= SM501_DC_PANEL_CONTROL_BIAS; /* VBIASEN */ + if (pd->flags & SM501FB_FLAG_PANEL_INV_VBIASEN) + control &= ~SM501_DC_PANEL_CONTROL_BIAS; + else + control |= SM501_DC_PANEL_CONTROL_BIAS; + writel(control, ctrl_reg); sm501fb_sync_regs(fbi); mdelay(10); } if (!(pd->flags & SM501FB_FLAG_PANEL_NO_FPEN)) { - control |= SM501_DC_PANEL_CONTROL_FPEN; + if (pd->flags & SM501FB_FLAG_PANEL_INV_FPEN) + control &= ~SM501_DC_PANEL_CONTROL_FPEN; + else + control |= SM501_DC_PANEL_CONTROL_FPEN; + writel(control, ctrl_reg); sm501fb_sync_regs(fbi); mdelay(10); @@ -679,14 +731,22 @@ static void sm501fb_panel_power(struct sm501fb_info *fbi, int to) } else if (!to && (control & SM501_DC_PANEL_CONTROL_VDD) != 0) { /* disable panel power */ if (!(pd->flags & SM501FB_FLAG_PANEL_NO_FPEN)) { - control &= ~SM501_DC_PANEL_CONTROL_FPEN; + if (pd->flags & SM501FB_FLAG_PANEL_INV_FPEN) + control |= SM501_DC_PANEL_CONTROL_FPEN; + else + control &= ~SM501_DC_PANEL_CONTROL_FPEN; + writel(control, ctrl_reg); sm501fb_sync_regs(fbi); mdelay(10); } if (!(pd->flags & SM501FB_FLAG_PANEL_NO_VBIASEN)) { - control &= ~SM501_DC_PANEL_CONTROL_BIAS; + if (pd->flags & SM501FB_FLAG_PANEL_INV_VBIASEN) + control |= SM501_DC_PANEL_CONTROL_BIAS; + else + control &= ~SM501_DC_PANEL_CONTROL_BIAS; + writel(control, ctrl_reg); sm501fb_sync_regs(fbi); mdelay(10); @@ -1210,39 +1270,6 @@ static struct fb_ops sm501fb_ops_pnl = { .fb_imageblit = cfb_imageblit, }; -/* sm501fb_info_alloc - * - * creates and initialises an sm501fb_info structure -*/ - -static struct sm501fb_info *sm501fb_info_alloc(struct fb_info *fbinfo_crt, - struct fb_info *fbinfo_pnl) -{ - struct sm501fb_info *info; - struct sm501fb_par *par; - - info = kzalloc(sizeof(struct sm501fb_info), GFP_KERNEL); - if (info) { - /* set the references back */ - - par = fbinfo_crt->par; - par->info = info; - par->head = HEAD_CRT; - fbinfo_crt->pseudo_palette = &par->pseudo_palette; - - par = fbinfo_pnl->par; - par->info = info; - par->head = HEAD_PANEL; - fbinfo_pnl->pseudo_palette = &par->pseudo_palette; - - /* store the two fbs into our info */ - info->fb[HEAD_CRT] = fbinfo_crt; - info->fb[HEAD_PANEL] = fbinfo_pnl; - } - - return info; -} - /* sm501_init_cursor * * initialise hw cursor parameters @@ -1250,10 +1277,16 @@ static struct sm501fb_info *sm501fb_info_alloc(struct fb_info *fbinfo_crt, static int sm501_init_cursor(struct fb_info *fbi, unsigned int reg_base) { - struct sm501fb_par *par = fbi->par; - struct sm501fb_info *info = par->info; + struct sm501fb_par *par; + struct sm501fb_info *info; int ret; + if (fbi == NULL) + return 0; + + par = fbi->par; + info = par->info; + par->cursor_regs = info->regs + reg_base; ret = sm501_alloc_mem(info, &par->cursor, SM501_MEMF_CURSOR, 1024); @@ -1281,13 +1314,10 @@ static int sm501fb_start(struct sm501fb_info *info, struct platform_device *pdev) { struct resource *res; - struct device *dev; + struct device *dev = &pdev->dev; int k; int ret; - info->dev = dev = &pdev->dev; - platform_set_drvdata(pdev, info); - info->irq = ret = platform_get_irq(pdev, 0); if (ret < 0) { /* we currently do not use the IRQ */ @@ -1390,11 +1420,6 @@ static void sm501fb_stop(struct sm501fb_info *info) kfree(info->regs_res); } -static void sm501fb_info_release(struct sm501fb_info *info) -{ - kfree(info); -} - static int sm501fb_init_fb(struct fb_info *fb, enum sm501_controller head, const char *fbname) @@ -1539,36 +1564,93 @@ static struct sm501_platdata_fb sm501fb_def_pdata = { static char driver_name_crt[] = "sm501fb-crt"; static char driver_name_pnl[] = "sm501fb-panel"; -static int __init sm501fb_probe(struct platform_device *pdev) +static int __devinit sm501fb_probe_one(struct sm501fb_info *info, + enum sm501_controller head) { - struct sm501fb_info *info; - struct device *dev = &pdev->dev; - struct fb_info *fbinfo_crt; - struct fb_info *fbinfo_pnl; - int ret; + unsigned char *name = (head == HEAD_CRT) ? "crt" : "panel"; + struct sm501_platdata_fbsub *pd; + struct sm501fb_par *par; + struct fb_info *fbi; - /* allocate our framebuffers */ + pd = (head == HEAD_CRT) ? info->pdata->fb_crt : info->pdata->fb_pnl; + + /* Do not initialise if we've not been given any platform data */ + if (pd == NULL) { + dev_info(info->dev, "no data for fb %s (disabled)\n", name); + return 0; + } - fbinfo_crt = framebuffer_alloc(sizeof(struct sm501fb_par), dev); - if (fbinfo_crt == NULL) { - dev_err(dev, "cannot allocate crt framebuffer\n"); + fbi = framebuffer_alloc(sizeof(struct sm501fb_par), info->dev); + if (fbi == NULL) { + dev_err(info->dev, "cannot allocate %s framebuffer\n", name); return -ENOMEM; } - fbinfo_pnl = framebuffer_alloc(sizeof(struct sm501fb_par), dev); - if (fbinfo_pnl == NULL) { - dev_err(dev, "cannot allocate panel framebuffer\n"); - ret = -ENOMEM; - goto fbinfo_crt_alloc_fail; + par = fbi->par; + par->info = info; + par->head = head; + fbi->pseudo_palette = &par->pseudo_palette; + + info->fb[head] = fbi; + + return 0; +} + +/* Free up anything allocated by sm501fb_init_fb */ + +static void sm501_free_init_fb(struct sm501fb_info *info, + enum sm501_controller head) +{ + struct fb_info *fbi = info->fb[head]; + + fb_dealloc_cmap(&fbi->cmap); +} + +static int __devinit sm501fb_start_one(struct sm501fb_info *info, + enum sm501_controller head, + const char *drvname) +{ + struct fb_info *fbi = info->fb[head]; + int ret; + + if (!fbi) + return 0; + + ret = sm501fb_init_fb(info->fb[head], head, drvname); + if (ret) { + dev_err(info->dev, "cannot initialise fb %s\n", drvname); + return ret; + } + + ret = register_framebuffer(info->fb[head]); + if (ret) { + dev_err(info->dev, "failed to register fb %s\n", drvname); + sm501_free_init_fb(info, head); + return ret; } - info = sm501fb_info_alloc(fbinfo_crt, fbinfo_pnl); - if (info == NULL) { - dev_err(dev, "cannot allocate par\n"); - ret = -ENOMEM; - goto sm501fb_alloc_fail; + dev_info(info->dev, "fb%d: %s frame buffer\n", fbi->node, fbi->fix.id); + + return 0; +} + +static int __devinit sm501fb_probe(struct platform_device *pdev) +{ + struct sm501fb_info *info; + struct device *dev = &pdev->dev; + int ret; + + /* allocate our framebuffers */ + + info = kzalloc(sizeof(struct sm501fb_info), GFP_KERNEL); + if (!info) { + dev_err(dev, "failed to allocate state\n"); + return -ENOMEM; } + info->dev = dev = &pdev->dev; + platform_set_drvdata(pdev, info); + if (dev->parent->platform_data) { struct sm501_platdata *pd = dev->parent->platform_data; info->pdata = pd->fb; @@ -1579,90 +1661,88 @@ static int __init sm501fb_probe(struct platform_device *pdev) info->pdata = &sm501fb_def_pdata; } - /* start the framebuffers */ + /* probe for the presence of each panel */ - ret = sm501fb_start(info, pdev); - if (ret) { - dev_err(dev, "cannot initialise SM501\n"); - goto sm501fb_start_fail; + ret = sm501fb_probe_one(info, HEAD_CRT); + if (ret < 0) { + dev_err(dev, "failed to probe CRT\n"); + goto err_alloc; } - /* CRT framebuffer setup */ + ret = sm501fb_probe_one(info, HEAD_PANEL); + if (ret < 0) { + dev_err(dev, "failed to probe PANEL\n"); + goto err_probed_crt; + } - ret = sm501fb_init_fb(fbinfo_crt, HEAD_CRT, driver_name_crt); - if (ret) { - dev_err(dev, "cannot initialise CRT fb\n"); - goto sm501fb_start_fail; + if (info->fb[HEAD_PANEL] == NULL && + info->fb[HEAD_CRT] == NULL) { + dev_err(dev, "no framebuffers found\n"); + goto err_alloc; } - /* Panel framebuffer setup */ + /* get the resources for both of the framebuffers */ - ret = sm501fb_init_fb(fbinfo_pnl, HEAD_PANEL, driver_name_pnl); + ret = sm501fb_start(info, pdev); if (ret) { - dev_err(dev, "cannot initialise Panel fb\n"); - goto sm501fb_start_fail; + dev_err(dev, "cannot initialise SM501\n"); + goto err_probed_panel; } - /* register framebuffers */ - - ret = register_framebuffer(fbinfo_crt); - if (ret < 0) { - dev_err(dev, "failed to register CRT fb (%d)\n", ret); - goto register_crt_fail; + ret = sm501fb_start_one(info, HEAD_CRT, driver_name_crt); + if (ret) { + dev_err(dev, "failed to start CRT\n"); + goto err_started; } - ret = register_framebuffer(fbinfo_pnl); - if (ret < 0) { - dev_err(dev, "failed to register panel fb (%d)\n", ret); - goto register_pnl_fail; + ret = sm501fb_start_one(info, HEAD_PANEL, driver_name_pnl); + if (ret) { + dev_err(dev, "failed to start Panel\n"); + goto err_started_crt; } - dev_info(dev, "fb%d: %s frame buffer device\n", - fbinfo_crt->node, fbinfo_crt->fix.id); - - dev_info(dev, "fb%d: %s frame buffer device\n", - fbinfo_pnl->node, fbinfo_pnl->fix.id); - /* create device files */ ret = device_create_file(dev, &dev_attr_crt_src); if (ret) - goto crtsrc_fail; + goto err_started_panel; ret = device_create_file(dev, &dev_attr_fbregs_pnl); if (ret) - goto fbregs_pnl_fail; + goto err_attached_crtsrc_file; ret = device_create_file(dev, &dev_attr_fbregs_crt); if (ret) - goto fbregs_crt_fail; + goto err_attached_pnlregs_file; /* we registered, return ok */ return 0; - fbregs_crt_fail: +err_attached_pnlregs_file: device_remove_file(dev, &dev_attr_fbregs_pnl); - fbregs_pnl_fail: +err_attached_crtsrc_file: device_remove_file(dev, &dev_attr_crt_src); - crtsrc_fail: - unregister_framebuffer(fbinfo_pnl); +err_started_panel: + unregister_framebuffer(info->fb[HEAD_PANEL]); + sm501_free_init_fb(info, HEAD_PANEL); - register_pnl_fail: - unregister_framebuffer(fbinfo_crt); +err_started_crt: + unregister_framebuffer(info->fb[HEAD_CRT]); + sm501_free_init_fb(info, HEAD_CRT); - register_crt_fail: +err_started: sm501fb_stop(info); - sm501fb_start_fail: - sm501fb_info_release(info); +err_probed_panel: + framebuffer_release(info->fb[HEAD_PANEL]); - sm501fb_alloc_fail: - framebuffer_release(fbinfo_pnl); +err_probed_crt: + framebuffer_release(info->fb[HEAD_CRT]); - fbinfo_crt_alloc_fail: - framebuffer_release(fbinfo_crt); +err_alloc: + kfree(info); return ret; } @@ -1681,11 +1761,14 @@ static int sm501fb_remove(struct platform_device *pdev) device_remove_file(&pdev->dev, &dev_attr_fbregs_pnl); device_remove_file(&pdev->dev, &dev_attr_crt_src); + sm501_free_init_fb(info, HEAD_CRT); + sm501_free_init_fb(info, HEAD_PANEL); + unregister_framebuffer(fbinfo_crt); unregister_framebuffer(fbinfo_pnl); sm501fb_stop(info); - sm501fb_info_release(info); + kfree(info); framebuffer_release(fbinfo_pnl); framebuffer_release(fbinfo_crt); diff --git a/drivers/video/sticore.h b/drivers/video/sticore.h index 1a9a60c..7fe5be4 100644 --- a/drivers/video/sticore.h +++ b/drivers/video/sticore.h @@ -352,8 +352,6 @@ struct sti_struct *sti_get_rom(unsigned int index); /* 0: default sti */ /* functions to call the STI ROM directly */ -int sti_init_graph(struct sti_struct *sti); -void sti_inq_conf(struct sti_struct *sti); void sti_putc(struct sti_struct *sti, int c, int y, int x); void sti_set(struct sti_struct *sti, int src_y, int src_x, int height, int width, u8 color); diff --git a/drivers/video/stifb.c b/drivers/video/stifb.c index 598d35e..1664814 100644 --- a/drivers/video/stifb.c +++ b/drivers/video/stifb.c @@ -1078,8 +1078,7 @@ static struct fb_ops stifb_ops = { * Initialization */ -int __init -stifb_init_fb(struct sti_struct *sti, int bpp_pref) +static int __init stifb_init_fb(struct sti_struct *sti, int bpp_pref) { struct fb_fix_screeninfo *fix; struct fb_var_screeninfo *var; @@ -1315,8 +1314,7 @@ static int stifb_disabled __initdata; int __init stifb_setup(char *options); -int __init -stifb_init(void) +static int __init stifb_init(void) { struct sti_struct *sti; struct sti_struct *def_sti; diff --git a/drivers/video/tdfxfb.c b/drivers/video/tdfxfb.c index ea9f19d2..77aafcf 100644 --- a/drivers/video/tdfxfb.c +++ b/drivers/video/tdfxfb.c @@ -836,16 +836,12 @@ static int tdfxfb_pan_display(struct fb_var_screeninfo *var, struct tdfx_par *par = info->par; u32 addr = var->yoffset * info->fix.line_length; - if (nopan || var->xoffset || (var->yoffset > var->yres_virtual)) - return -EINVAL; - if ((var->yoffset + var->yres > var->yres_virtual && nowrap)) + if (nopan || var->xoffset) return -EINVAL; banshee_make_room(par, 1); tdfx_outl(par, VIDDESKSTART, addr); - info->var.xoffset = var->xoffset; - info->var.yoffset = var->yoffset; return 0; } @@ -1426,6 +1422,8 @@ MODULE_LICENSE("GPL"); module_param(hwcursor, int, 0644); MODULE_PARM_DESC(hwcursor, "Enable hardware cursor " "(1=enable, 0=disable, default=1)"); +module_param(mode_option, charp, 0); +MODULE_PARM_DESC(mode_option, "Initial video mode e.g. '648x480-8@60'"); #ifdef CONFIG_MTRR module_param(nomtrr, bool, 0); MODULE_PARM_DESC(nomtrr, "Disable MTRR support (default: enabled)"); diff --git a/drivers/video/tridentfb.c b/drivers/video/tridentfb.c index beefab2..479b2e7 100644 --- a/drivers/video/tridentfb.c +++ b/drivers/video/tridentfb.c @@ -1,5 +1,5 @@ /* - * Frame buffer driver for Trident Blade and Image series + * Frame buffer driver for Trident TGUI, Blade and Image series * * Copyright 2001, 2002 - Jani Monoses <jani@iv.ro> * @@ -13,7 +13,6 @@ * code, suggestions * TODO: * timing value tweaking so it looks good on every monitor in every mode - * TGUI acceleration */ #include <linux/module.h> @@ -22,25 +21,26 @@ #include <linux/pci.h> #include <linux/delay.h> +#include <video/vga.h> #include <video/trident.h> -#define VERSION "0.7.8-NEWAPI" - struct tridentfb_par { void __iomem *io_virt; /* iospace virtual memory address */ + u32 pseudo_pal[16]; + int chip_id; + int flatpanel; + void (*init_accel) (struct tridentfb_par *, int, int); + void (*wait_engine) (struct tridentfb_par *); + void (*fill_rect) + (struct tridentfb_par *par, u32, u32, u32, u32, u32, u32); + void (*copy_rect) + (struct tridentfb_par *par, u32, u32, u32, u32, u32, u32); + void (*image_blit) + (struct tridentfb_par *par, const char*, + u32, u32, u32, u32, u32, u32); + unsigned char eng_oper; /* engine operation... */ }; -static unsigned char eng_oper; /* engine operation... */ -static struct fb_ops tridentfb_ops; - -static struct tridentfb_par default_par; - -/* FIXME:kmalloc these 3 instead */ -static struct fb_info fb_info; -static u32 pseudo_pal[16]; - -static struct fb_var_screeninfo default_var; - static struct fb_fix_screeninfo tridentfb_fix = { .id = "Trident", .type = FB_TYPE_PACKED_PIXELS, @@ -49,27 +49,22 @@ static struct fb_fix_screeninfo tridentfb_fix = { .accel = FB_ACCEL_NONE, }; -static int chip_id; - -static int defaultaccel; -static int displaytype; - /* defaults which are normally overriden by user values */ /* video mode */ -static char *mode_option __devinitdata = "640x480"; -static int bpp = 8; +static char *mode_option __devinitdata = "640x480-8@60"; +static int bpp __devinitdata = 8; -static int noaccel; +static int noaccel __devinitdata; static int center; static int stretch; -static int fp; -static int crt; +static int fp __devinitdata; +static int crt __devinitdata; -static int memsize; -static int memdiff; +static int memsize __devinitdata; +static int memdiff __devinitdata; static int nativex; module_param(mode_option, charp, 0); @@ -84,25 +79,53 @@ module_param(memsize, int, 0); module_param(memdiff, int, 0); module_param(nativex, int, 0); module_param(fp, int, 0); +MODULE_PARM_DESC(fp, "Define if flatpanel is connected"); module_param(crt, int, 0); +MODULE_PARM_DESC(crt, "Define if CRT is connected"); + +static inline int is_oldclock(int id) +{ + return (id == TGUI9440) || + (id == TGUI9660) || + (id == CYBER9320); +} + +static inline int is_oldprotect(int id) +{ + return is_oldclock(id) || + (id == PROVIDIA9685) || + (id == CYBER9382) || + (id == CYBER9385); +} + +static inline int is_blade(int id) +{ + return (id == BLADE3D) || + (id == CYBERBLADEE4) || + (id == CYBERBLADEi7) || + (id == CYBERBLADEi7D) || + (id == CYBERBLADEi1) || + (id == CYBERBLADEi1D) || + (id == CYBERBLADEAi1) || + (id == CYBERBLADEAi1D); +} -static int chip3D; -static int chipcyber; +static inline int is_xp(int id) +{ + return (id == CYBERBLADEXPAi1) || + (id == CYBERBLADEXPm8) || + (id == CYBERBLADEXPm16); +} -static int is3Dchip(int id) +static inline int is3Dchip(int id) { - return ((id == BLADE3D) || (id == CYBERBLADEE4) || - (id == CYBERBLADEi7) || (id == CYBERBLADEi7D) || + return is_blade(id) || is_xp(id) || (id == CYBER9397) || (id == CYBER9397DVD) || (id == CYBER9520) || (id == CYBER9525DVD) || - (id == IMAGE975) || (id == IMAGE985) || - (id == CYBERBLADEi1) || (id == CYBERBLADEi1D) || - (id == CYBERBLADEAi1) || (id == CYBERBLADEAi1D) || - (id == CYBERBLADEXPm8) || (id == CYBERBLADEXPm16) || - (id == CYBERBLADEXPAi1)); + (id == IMAGE975) || (id == IMAGE985); } -static int iscyber(int id) +static inline int iscyber(int id) { switch (id) { case CYBER9388: @@ -122,12 +145,7 @@ static int iscyber(int id) return 1; case CYBER9320: - case TGUI9660: - case IMAGE975: - case IMAGE985: - case BLADE3D: case CYBERBLADEi7: /* VIA MPV4 integrated version */ - default: /* case CYBERBLDAEXPm8: Strange */ /* case CYBERBLDAEXPm16: Strange */ @@ -135,147 +153,110 @@ static int iscyber(int id) } } -#define CRT 0x3D0 /* CRTC registers offset for color display */ - -#ifndef TRIDENT_MMIO - #define TRIDENT_MMIO 1 -#endif - -#if TRIDENT_MMIO - #define t_outb(val, reg) writeb(val,((struct tridentfb_par *)(fb_info.par))->io_virt + reg) - #define t_inb(reg) readb(((struct tridentfb_par*)(fb_info.par))->io_virt + reg) -#else - #define t_outb(val, reg) outb(val, reg) - #define t_inb(reg) inb(reg) -#endif +static inline void t_outb(struct tridentfb_par *p, u8 val, u16 reg) +{ + fb_writeb(val, p->io_virt + reg); +} +static inline u8 t_inb(struct tridentfb_par *p, u16 reg) +{ + return fb_readb(p->io_virt + reg); +} -static struct accel_switch { - void (*init_accel) (int, int); - void (*wait_engine) (void); - void (*fill_rect) (u32, u32, u32, u32, u32, u32); - void (*copy_rect) (u32, u32, u32, u32, u32, u32); -} *acc; +static inline void writemmr(struct tridentfb_par *par, u16 r, u32 v) +{ + fb_writel(v, par->io_virt + r); +} -#define writemmr(r, v) writel(v, ((struct tridentfb_par *)fb_info.par)->io_virt + r) -#define readmmr(r) readl(((struct tridentfb_par *)fb_info.par)->io_virt + r) +static inline u32 readmmr(struct tridentfb_par *par, u16 r) +{ + return fb_readl(par->io_virt + r); +} /* * Blade specific acceleration. */ #define point(x, y) ((y) << 16 | (x)) -#define STA 0x2120 -#define CMD 0x2144 -#define ROP 0x2148 -#define CLR 0x2160 -#define SR1 0x2100 -#define SR2 0x2104 -#define DR1 0x2108 -#define DR2 0x210C - -#define ROP_S 0xCC - -static void blade_init_accel(int pitch, int bpp) + +static void blade_init_accel(struct tridentfb_par *par, int pitch, int bpp) { int v1 = (pitch >> 3) << 20; - int tmp = 0, v2; - switch (bpp) { - case 8: - tmp = 0; - break; - case 15: - tmp = 5; - break; - case 16: - tmp = 1; - break; - case 24: - case 32: - tmp = 2; - break; - } - v2 = v1 | (tmp << 29); - writemmr(0x21C0, v2); - writemmr(0x21C4, v2); - writemmr(0x21B8, v2); - writemmr(0x21BC, v2); - writemmr(0x21D0, v1); - writemmr(0x21D4, v1); - writemmr(0x21C8, v1); - writemmr(0x21CC, v1); - writemmr(0x216C, 0); + int tmp = bpp == 24 ? 2 : (bpp >> 4); + int v2 = v1 | (tmp << 29); + + writemmr(par, 0x21C0, v2); + writemmr(par, 0x21C4, v2); + writemmr(par, 0x21B8, v2); + writemmr(par, 0x21BC, v2); + writemmr(par, 0x21D0, v1); + writemmr(par, 0x21D4, v1); + writemmr(par, 0x21C8, v1); + writemmr(par, 0x21CC, v1); + writemmr(par, 0x216C, 0); } -static void blade_wait_engine(void) +static void blade_wait_engine(struct tridentfb_par *par) { - while (readmmr(STA) & 0xFA800000) ; + while (readmmr(par, STATUS) & 0xFA800000) + cpu_relax(); } -static void blade_fill_rect(u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop) +static void blade_fill_rect(struct tridentfb_par *par, + u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop) { - writemmr(CLR, c); - writemmr(ROP, rop ? 0x66 : ROP_S); - writemmr(CMD, 0x20000000 | 1 << 19 | 1 << 4 | 2 << 2); + writemmr(par, COLOR, c); + writemmr(par, ROP, rop ? ROP_X : ROP_S); + writemmr(par, CMD, 0x20000000 | 1 << 19 | 1 << 4 | 2 << 2); - writemmr(DR1, point(x, y)); - writemmr(DR2, point(x + w - 1, y + h - 1)); + writemmr(par, DST1, point(x, y)); + writemmr(par, DST2, point(x + w - 1, y + h - 1)); } -static void blade_copy_rect(u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h) +static void blade_image_blit(struct tridentfb_par *par, const char *data, + u32 x, u32 y, u32 w, u32 h, u32 c, u32 b) +{ + unsigned size = ((w + 31) >> 5) * h; + + writemmr(par, COLOR, c); + writemmr(par, BGCOLOR, b); + writemmr(par, CMD, 0xa0000000 | 3 << 19); + + writemmr(par, DST1, point(x, y)); + writemmr(par, DST2, point(x + w - 1, y + h - 1)); + + memcpy(par->io_virt + 0x10000, data, 4 * size); +} + +static void blade_copy_rect(struct tridentfb_par *par, + u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h) { - u32 s1, s2, d1, d2; int direction = 2; - s1 = point(x1, y1); - s2 = point(x1 + w - 1, y1 + h - 1); - d1 = point(x2, y2); - d2 = point(x2 + w - 1, y2 + h - 1); + u32 s1 = point(x1, y1); + u32 s2 = point(x1 + w - 1, y1 + h - 1); + u32 d1 = point(x2, y2); + u32 d2 = point(x2 + w - 1, y2 + h - 1); if ((y1 > y2) || ((y1 == y2) && (x1 > x2))) direction = 0; - writemmr(ROP, ROP_S); - writemmr(CMD, 0xE0000000 | 1 << 19 | 1 << 4 | 1 << 2 | direction); + writemmr(par, ROP, ROP_S); + writemmr(par, CMD, 0xE0000000 | 1 << 19 | 1 << 4 | 1 << 2 | direction); - writemmr(SR1, direction ? s2 : s1); - writemmr(SR2, direction ? s1 : s2); - writemmr(DR1, direction ? d2 : d1); - writemmr(DR2, direction ? d1 : d2); + writemmr(par, SRC1, direction ? s2 : s1); + writemmr(par, SRC2, direction ? s1 : s2); + writemmr(par, DST1, direction ? d2 : d1); + writemmr(par, DST2, direction ? d1 : d2); } -static struct accel_switch accel_blade = { - blade_init_accel, - blade_wait_engine, - blade_fill_rect, - blade_copy_rect, -}; - /* * BladeXP specific acceleration functions */ -#define ROP_P 0xF0 -#define masked_point(x, y) ((y & 0xffff)<<16|(x & 0xffff)) - -static void xp_init_accel(int pitch, int bpp) +static void xp_init_accel(struct tridentfb_par *par, int pitch, int bpp) { - int tmp = 0, v1; - unsigned char x = 0; - - switch (bpp) { - case 8: - x = 0; - break; - case 16: - x = 1; - break; - case 24: - x = 3; - break; - case 32: - x = 2; - break; - } + unsigned char x = bpp == 24 ? 3 : (bpp >> 4); + int v1 = pitch << (bpp == 24 ? 20 : (18 + x)); switch (pitch << (bpp >> 3)) { case 8192: @@ -293,42 +274,21 @@ static void xp_init_accel(int pitch, int bpp) break; } - t_outb(x, 0x2125); - - eng_oper = x | 0x40; - - switch (bpp) { - case 8: - tmp = 18; - break; - case 15: - case 16: - tmp = 19; - break; - case 24: - case 32: - tmp = 20; - break; - } + t_outb(par, x, 0x2125); - v1 = pitch << tmp; + par->eng_oper = x | 0x40; - writemmr(0x2154, v1); - writemmr(0x2150, v1); - t_outb(3, 0x2126); + writemmr(par, 0x2154, v1); + writemmr(par, 0x2150, v1); + t_outb(par, 3, 0x2126); } -static void xp_wait_engine(void) +static void xp_wait_engine(struct tridentfb_par *par) { - int busy; - int count, timeout; - - count = 0; - timeout = 0; - for (;;) { - busy = t_inb(STA) & 0x80; - if (busy != 0x80) - return; + int count = 0; + int timeout = 0; + + while (t_inb(par, STATUS) & 0x80) { count++; if (count == 10000000) { /* Timeout */ @@ -336,30 +296,31 @@ static void xp_wait_engine(void) timeout++; if (timeout == 8) { /* Reset engine */ - t_outb(0x00, 0x2120); + t_outb(par, 0x00, STATUS); return; } } + cpu_relax(); } } -static void xp_fill_rect(u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop) +static void xp_fill_rect(struct tridentfb_par *par, + u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop) { - writemmr(0x2127, ROP_P); - writemmr(0x2158, c); - writemmr(0x2128, 0x4000); - writemmr(0x2140, masked_point(h, w)); - writemmr(0x2138, masked_point(y, x)); - t_outb(0x01, 0x2124); - t_outb(eng_oper, 0x2125); + writemmr(par, 0x2127, ROP_P); + writemmr(par, 0x2158, c); + writemmr(par, DRAWFL, 0x4000); + writemmr(par, OLDDIM, point(h, w)); + writemmr(par, OLDDST, point(y, x)); + t_outb(par, 0x01, OLDCMD); + t_outb(par, par->eng_oper, 0x2125); } -static void xp_copy_rect(u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h) +static void xp_copy_rect(struct tridentfb_par *par, + u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h) { - int direction; u32 x1_tmp, x2_tmp, y1_tmp, y2_tmp; - - direction = 0x0004; + int direction = 0x0004; if ((x1 < x2) && (y1 == y2)) { direction |= 0x0200; @@ -379,103 +340,152 @@ static void xp_copy_rect(u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h) y2_tmp = y2; } - writemmr(0x2128, direction); - t_outb(ROP_S, 0x2127); - writemmr(0x213C, masked_point(y1_tmp, x1_tmp)); - writemmr(0x2138, masked_point(y2_tmp, x2_tmp)); - writemmr(0x2140, masked_point(h, w)); - t_outb(0x01, 0x2124); + writemmr(par, DRAWFL, direction); + t_outb(par, ROP_S, 0x2127); + writemmr(par, OLDSRC, point(y1_tmp, x1_tmp)); + writemmr(par, OLDDST, point(y2_tmp, x2_tmp)); + writemmr(par, OLDDIM, point(h, w)); + t_outb(par, 0x01, OLDCMD); } -static struct accel_switch accel_xp = { - xp_init_accel, - xp_wait_engine, - xp_fill_rect, - xp_copy_rect, -}; - /* * Image specific acceleration functions */ -static void image_init_accel(int pitch, int bpp) +static void image_init_accel(struct tridentfb_par *par, int pitch, int bpp) { - int tmp = 0; - switch (bpp) { - case 8: - tmp = 0; - break; - case 15: - tmp = 5; - break; - case 16: - tmp = 1; - break; - case 24: - case 32: - tmp = 2; - break; - } - writemmr(0x2120, 0xF0000000); - writemmr(0x2120, 0x40000000 | tmp); - writemmr(0x2120, 0x80000000); - writemmr(0x2144, 0x00000000); - writemmr(0x2148, 0x00000000); - writemmr(0x2150, 0x00000000); - writemmr(0x2154, 0x00000000); - writemmr(0x2120, 0x60000000 | (pitch << 16) | pitch); - writemmr(0x216C, 0x00000000); - writemmr(0x2170, 0x00000000); - writemmr(0x217C, 0x00000000); - writemmr(0x2120, 0x10000000); - writemmr(0x2130, (2047 << 16) | 2047); + int tmp = bpp == 24 ? 2: (bpp >> 4); + + writemmr(par, 0x2120, 0xF0000000); + writemmr(par, 0x2120, 0x40000000 | tmp); + writemmr(par, 0x2120, 0x80000000); + writemmr(par, 0x2144, 0x00000000); + writemmr(par, 0x2148, 0x00000000); + writemmr(par, 0x2150, 0x00000000); + writemmr(par, 0x2154, 0x00000000); + writemmr(par, 0x2120, 0x60000000 | (pitch << 16) | pitch); + writemmr(par, 0x216C, 0x00000000); + writemmr(par, 0x2170, 0x00000000); + writemmr(par, 0x217C, 0x00000000); + writemmr(par, 0x2120, 0x10000000); + writemmr(par, 0x2130, (2047 << 16) | 2047); } -static void image_wait_engine(void) +static void image_wait_engine(struct tridentfb_par *par) { - while (readmmr(0x2164) & 0xF0000000) ; + while (readmmr(par, 0x2164) & 0xF0000000) + cpu_relax(); } -static void image_fill_rect(u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop) +static void image_fill_rect(struct tridentfb_par *par, + u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop) { - writemmr(0x2120, 0x80000000); - writemmr(0x2120, 0x90000000 | ROP_S); + writemmr(par, 0x2120, 0x80000000); + writemmr(par, 0x2120, 0x90000000 | ROP_S); - writemmr(0x2144, c); + writemmr(par, 0x2144, c); - writemmr(DR1, point(x, y)); - writemmr(DR2, point(x + w - 1, y + h - 1)); + writemmr(par, DST1, point(x, y)); + writemmr(par, DST2, point(x + w - 1, y + h - 1)); - writemmr(0x2124, 0x80000000 | 3 << 22 | 1 << 10 | 1 << 9); + writemmr(par, 0x2124, 0x80000000 | 3 << 22 | 1 << 10 | 1 << 9); } -static void image_copy_rect(u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h) +static void image_copy_rect(struct tridentfb_par *par, + u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h) { - u32 s1, s2, d1, d2; - int direction = 2; - s1 = point(x1, y1); - s2 = point(x1 + w - 1, y1 + h - 1); - d1 = point(x2, y2); - d2 = point(x2 + w - 1, y2 + h - 1); + int direction = 0x4; + u32 s1 = point(x1, y1); + u32 s2 = point(x1 + w - 1, y1 + h - 1); + u32 d1 = point(x2, y2); + u32 d2 = point(x2 + w - 1, y2 + h - 1); if ((y1 > y2) || ((y1 == y2) && (x1 > x2))) direction = 0; - writemmr(0x2120, 0x80000000); - writemmr(0x2120, 0x90000000 | ROP_S); + writemmr(par, 0x2120, 0x80000000); + writemmr(par, 0x2120, 0x90000000 | ROP_S); - writemmr(SR1, direction ? s2 : s1); - writemmr(SR2, direction ? s1 : s2); - writemmr(DR1, direction ? d2 : d1); - writemmr(DR2, direction ? d1 : d2); - writemmr(0x2124, 0x80000000 | 1 << 22 | 1 << 10 | 1 << 7 | direction); + writemmr(par, SRC1, direction ? s2 : s1); + writemmr(par, SRC2, direction ? s1 : s2); + writemmr(par, DST1, direction ? d2 : d1); + writemmr(par, DST2, direction ? d1 : d2); + writemmr(par, 0x2124, + 0x80000000 | 1 << 22 | 1 << 10 | 1 << 7 | direction); } -static struct accel_switch accel_image = { - image_init_accel, - image_wait_engine, - image_fill_rect, - image_copy_rect, -}; +/* + * TGUI 9440/96XX acceleration + */ + +static void tgui_init_accel(struct tridentfb_par *par, int pitch, int bpp) +{ + unsigned char x = bpp == 24 ? 3 : (bpp >> 4); + + /* disable clipping */ + writemmr(par, 0x2148, 0); + writemmr(par, 0x214C, point(4095, 2047)); + + switch ((pitch * bpp) / 8) { + case 8192: + case 512: + x |= 0x00; + break; + case 1024: + x |= 0x04; + break; + case 2048: + x |= 0x08; + break; + case 4096: + x |= 0x0C; + break; + } + + fb_writew(x, par->io_virt + 0x2122); +} + +static void tgui_fill_rect(struct tridentfb_par *par, + u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop) +{ + t_outb(par, ROP_P, 0x2127); + writemmr(par, OLDCLR, c); + writemmr(par, DRAWFL, 0x4020); + writemmr(par, OLDDIM, point(w - 1, h - 1)); + writemmr(par, OLDDST, point(x, y)); + t_outb(par, 1, OLDCMD); +} + +static void tgui_copy_rect(struct tridentfb_par *par, + u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h) +{ + int flags = 0; + u16 x1_tmp, x2_tmp, y1_tmp, y2_tmp; + + if ((x1 < x2) && (y1 == y2)) { + flags |= 0x0200; + x1_tmp = x1 + w - 1; + x2_tmp = x2 + w - 1; + } else { + x1_tmp = x1; + x2_tmp = x2; + } + + if (y1 < y2) { + flags |= 0x0100; + y1_tmp = y1 + h - 1; + y2_tmp = y2 + h - 1; + } else { + y1_tmp = y1; + y2_tmp = y2; + } + + writemmr(par, DRAWFL, 0x4 | flags); + t_outb(par, ROP_S, 0x2127); + writemmr(par, OLDSRC, point(x1_tmp, y1_tmp)); + writemmr(par, OLDDST, point(x2_tmp, y2_tmp)); + writemmr(par, OLDDIM, point(w - 1, h - 1)); + t_outb(par, 1, OLDCMD); +} /* * Accel functions called by the upper layers @@ -484,129 +494,162 @@ static struct accel_switch accel_image = { static void tridentfb_fillrect(struct fb_info *info, const struct fb_fillrect *fr) { - int bpp = info->var.bits_per_pixel; - int col = 0; + struct tridentfb_par *par = info->par; + int col; - switch (bpp) { - default: - case 8: - col |= fr->color; + if (info->flags & FBINFO_HWACCEL_DISABLED) { + cfb_fillrect(info, fr); + return; + } + if (info->var.bits_per_pixel == 8) { + col = fr->color; col |= col << 8; col |= col << 16; - break; - case 16: + } else col = ((u32 *)(info->pseudo_palette))[fr->color]; - break; - case 32: - col = ((u32 *)(info->pseudo_palette))[fr->color]; - break; + + par->wait_engine(par); + par->fill_rect(par, fr->dx, fr->dy, fr->width, + fr->height, col, fr->rop); +} + +static void tridentfb_imageblit(struct fb_info *info, + const struct fb_image *img) +{ + struct tridentfb_par *par = info->par; + int col, bgcol; + + if ((info->flags & FBINFO_HWACCEL_DISABLED) || img->depth != 1) { + cfb_imageblit(info, img); + return; + } + if (info->var.bits_per_pixel == 8) { + col = img->fg_color; + col |= col << 8; + col |= col << 16; + bgcol = img->bg_color; + bgcol |= bgcol << 8; + bgcol |= bgcol << 16; + } else { + col = ((u32 *)(info->pseudo_palette))[img->fg_color]; + bgcol = ((u32 *)(info->pseudo_palette))[img->bg_color]; } - acc->fill_rect(fr->dx, fr->dy, fr->width, fr->height, col, fr->rop); - acc->wait_engine(); + par->wait_engine(par); + if (par->image_blit) + par->image_blit(par, img->data, img->dx, img->dy, + img->width, img->height, col, bgcol); + else + cfb_imageblit(info, img); } + static void tridentfb_copyarea(struct fb_info *info, const struct fb_copyarea *ca) { - acc->copy_rect(ca->sx, ca->sy, ca->dx, ca->dy, ca->width, ca->height); - acc->wait_engine(); + struct tridentfb_par *par = info->par; + + if (info->flags & FBINFO_HWACCEL_DISABLED) { + cfb_copyarea(info, ca); + return; + } + par->wait_engine(par); + par->copy_rect(par, ca->sx, ca->sy, ca->dx, ca->dy, + ca->width, ca->height); +} + +static int tridentfb_sync(struct fb_info *info) +{ + struct tridentfb_par *par = info->par; + + if (!(info->flags & FBINFO_HWACCEL_DISABLED)) + par->wait_engine(par); + return 0; } -#else /* !CONFIG_FB_TRIDENT_ACCEL */ +#else #define tridentfb_fillrect cfb_fillrect #define tridentfb_copyarea cfb_copyarea +#define tridentfb_imageblit cfb_imageblit #endif /* CONFIG_FB_TRIDENT_ACCEL */ - /* * Hardware access functions */ -static inline unsigned char read3X4(int reg) +static inline unsigned char read3X4(struct tridentfb_par *par, int reg) { - struct tridentfb_par *par = (struct tridentfb_par *)fb_info.par; - writeb(reg, par->io_virt + CRT + 4); - return readb(par->io_virt + CRT + 5); + return vga_mm_rcrt(par->io_virt, reg); } -static inline void write3X4(int reg, unsigned char val) +static inline void write3X4(struct tridentfb_par *par, int reg, + unsigned char val) { - struct tridentfb_par *par = (struct tridentfb_par *)fb_info.par; - writeb(reg, par->io_virt + CRT + 4); - writeb(val, par->io_virt + CRT + 5); + vga_mm_wcrt(par->io_virt, reg, val); } -static inline unsigned char read3C4(int reg) +static inline unsigned char read3CE(struct tridentfb_par *par, + unsigned char reg) { - t_outb(reg, 0x3C4); - return t_inb(0x3C5); + return vga_mm_rgfx(par->io_virt, reg); } -static inline void write3C4(int reg, unsigned char val) +static inline void writeAttr(struct tridentfb_par *par, int reg, + unsigned char val) { - t_outb(reg, 0x3C4); - t_outb(val, 0x3C5); + fb_readb(par->io_virt + VGA_IS1_RC); /* flip-flop to index */ + vga_mm_wattr(par->io_virt, reg, val); } -static inline unsigned char read3CE(int reg) +static inline void write3CE(struct tridentfb_par *par, int reg, + unsigned char val) { - t_outb(reg, 0x3CE); - return t_inb(0x3CF); + vga_mm_wgfx(par->io_virt, reg, val); } -static inline void writeAttr(int reg, unsigned char val) -{ - readb(((struct tridentfb_par *)fb_info.par)->io_virt + CRT + 0x0A); /* flip-flop to index */ - t_outb(reg, 0x3C0); - t_outb(val, 0x3C0); -} - -static inline void write3CE(int reg, unsigned char val) -{ - t_outb(reg, 0x3CE); - t_outb(val, 0x3CF); -} - -static void enable_mmio(void) +static void enable_mmio(struct tridentfb_par *par) { /* Goto New Mode */ - outb(0x0B, 0x3C4); - inb(0x3C5); + vga_io_rseq(0x0B); /* Unprotect registers */ - outb(NewMode1, 0x3C4); - outb(0x80, 0x3C5); + vga_io_wseq(NewMode1, 0x80); + if (!is_oldprotect(par->chip_id)) + vga_io_wseq(Protection, 0x92); /* Enable MMIO */ outb(PCIReg, 0x3D4); outb(inb(0x3D5) | 0x01, 0x3D5); } -static void disable_mmio(void) +static void disable_mmio(struct tridentfb_par *par) { /* Goto New Mode */ - t_outb(0x0B, 0x3C4); - t_inb(0x3C5); + vga_mm_rseq(par->io_virt, 0x0B); /* Unprotect registers */ - t_outb(NewMode1, 0x3C4); - t_outb(0x80, 0x3C5); + vga_mm_wseq(par->io_virt, NewMode1, 0x80); + if (!is_oldprotect(par->chip_id)) + vga_mm_wseq(par->io_virt, Protection, 0x92); /* Disable MMIO */ - t_outb(PCIReg, 0x3D4); - t_outb(t_inb(0x3D5) & ~0x01, 0x3D5); + t_outb(par, PCIReg, 0x3D4); + t_outb(par, t_inb(par, 0x3D5) & ~0x01, 0x3D5); } -#define crtc_unlock() write3X4(CRTVSyncEnd, read3X4(CRTVSyncEnd) & 0x7F) +static inline void crtc_unlock(struct tridentfb_par *par) +{ + write3X4(par, VGA_CRTC_V_SYNC_END, + read3X4(par, VGA_CRTC_V_SYNC_END) & 0x7F); +} /* Return flat panel's maximum x resolution */ -static int __devinit get_nativex(void) +static int __devinit get_nativex(struct tridentfb_par *par) { int x, y, tmp; if (nativex) return nativex; - tmp = (read3CE(VertStretch) >> 4) & 3; + tmp = (read3CE(par, VertStretch) >> 4) & 3; switch (tmp) { case 0: @@ -632,77 +675,92 @@ static int __devinit get_nativex(void) } /* Set pitch */ -static void set_lwidth(int width) +static inline void set_lwidth(struct tridentfb_par *par, int width) { - write3X4(Offset, width & 0xFF); - write3X4(AddColReg, - (read3X4(AddColReg) & 0xCF) | ((width & 0x300) >> 4)); + write3X4(par, VGA_CRTC_OFFSET, width & 0xFF); + write3X4(par, AddColReg, + (read3X4(par, AddColReg) & 0xCF) | ((width & 0x300) >> 4)); } /* For resolutions smaller than FP resolution stretch */ -static void screen_stretch(void) +static void screen_stretch(struct tridentfb_par *par) { - if (chip_id != CYBERBLADEXPAi1) - write3CE(BiosReg, 0); + if (par->chip_id != CYBERBLADEXPAi1) + write3CE(par, BiosReg, 0); else - write3CE(BiosReg, 8); - write3CE(VertStretch, (read3CE(VertStretch) & 0x7C) | 1); - write3CE(HorStretch, (read3CE(HorStretch) & 0x7C) | 1); + write3CE(par, BiosReg, 8); + write3CE(par, VertStretch, (read3CE(par, VertStretch) & 0x7C) | 1); + write3CE(par, HorStretch, (read3CE(par, HorStretch) & 0x7C) | 1); } /* For resolutions smaller than FP resolution center */ -static void screen_center(void) +static inline void screen_center(struct tridentfb_par *par) { - write3CE(VertStretch, (read3CE(VertStretch) & 0x7C) | 0x80); - write3CE(HorStretch, (read3CE(HorStretch) & 0x7C) | 0x80); + write3CE(par, VertStretch, (read3CE(par, VertStretch) & 0x7C) | 0x80); + write3CE(par, HorStretch, (read3CE(par, HorStretch) & 0x7C) | 0x80); } /* Address of first shown pixel in display memory */ -static void set_screen_start(int base) +static void set_screen_start(struct tridentfb_par *par, int base) { - write3X4(StartAddrLow, base & 0xFF); - write3X4(StartAddrHigh, (base & 0xFF00) >> 8); - write3X4(CRTCModuleTest, - (read3X4(CRTCModuleTest) & 0xDF) | ((base & 0x10000) >> 11)); - write3X4(CRTHiOrd, - (read3X4(CRTHiOrd) & 0xF8) | ((base & 0xE0000) >> 17)); + u8 tmp; + write3X4(par, VGA_CRTC_START_LO, base & 0xFF); + write3X4(par, VGA_CRTC_START_HI, (base & 0xFF00) >> 8); + tmp = read3X4(par, CRTCModuleTest) & 0xDF; + write3X4(par, CRTCModuleTest, tmp | ((base & 0x10000) >> 11)); + tmp = read3X4(par, CRTHiOrd) & 0xF8; + write3X4(par, CRTHiOrd, tmp | ((base & 0xE0000) >> 17)); } /* Set dotclock frequency */ -static void set_vclk(unsigned long freq) +static void set_vclk(struct tridentfb_par *par, unsigned long freq) { int m, n, k; - unsigned long f, fi, d, di; - unsigned char lo = 0, hi = 0; + unsigned long fi, d, di; + unsigned char best_m = 0, best_n = 0, best_k = 0; + unsigned char hi, lo; + unsigned char shift = !is_oldclock(par->chip_id) ? 2 : 1; d = 20000; - for (k = 2; k >= 0; k--) - for (m = 0; m < 63; m++) - for (n = 0; n < 128; n++) { + for (k = shift; k >= 0; k--) + for (m = 1; m < 32; m++) { + n = ((m + 2) << shift) - 8; + for (n = (n < 0 ? 0 : n); n < 122; n++) { fi = ((14318l * (n + 8)) / (m + 2)) >> k; - if ((di = abs(fi - freq)) < d) { + di = abs(fi - freq); + if (di < d || (di == d && k == best_k)) { d = di; - f = fi; - lo = n; - hi = (k << 6) | m; + best_n = n; + best_m = m; + best_k = k; } if (fi > freq) break; } - if (chip3D) { - write3C4(ClockHigh, hi); - write3C4(ClockLow, lo); + } + + if (is_oldclock(par->chip_id)) { + lo = best_n | (best_m << 7); + hi = (best_m >> 1) | (best_k << 4); } else { - outb(lo, 0x43C8); - outb(hi, 0x43C9); + lo = best_n; + hi = best_m | (best_k << 6); + } + + if (is3Dchip(par->chip_id)) { + vga_mm_wseq(par->io_virt, ClockHigh, hi); + vga_mm_wseq(par->io_virt, ClockLow, lo); + } else { + t_outb(par, lo, 0x43C8); + t_outb(par, hi, 0x43C9); } debug("VCLK = %X %X\n", hi, lo); } /* Set number of lines for flat panels*/ -static void set_number_of_lines(int lines) +static void set_number_of_lines(struct tridentfb_par *par, int lines) { - int tmp = read3CE(CyberEnhance) & 0x8F; + int tmp = read3CE(par, CyberEnhance) & 0x8F; if (lines > 1024) tmp |= 0x50; else if (lines > 768) @@ -711,24 +769,24 @@ static void set_number_of_lines(int lines) tmp |= 0x20; else if (lines > 480) tmp |= 0x10; - write3CE(CyberEnhance, tmp); + write3CE(par, CyberEnhance, tmp); } /* * If we see that FP is active we assume we have one. - * Otherwise we have a CRT display.User can override. + * Otherwise we have a CRT display. User can override. */ -static unsigned int __devinit get_displaytype(void) +static int __devinit is_flatpanel(struct tridentfb_par *par) { if (fp) - return DISPLAY_FP; - if (crt || !chipcyber) - return DISPLAY_CRT; - return (read3CE(FPConfig) & 0x10) ? DISPLAY_FP : DISPLAY_CRT; + return 1; + if (crt || !iscyber(par->chip_id)) + return 0; + return (read3CE(par, FPConfig) & 0x10) ? 1 : 0; } /* Try detecting the video memory size */ -static unsigned int __devinit get_memsize(void) +static unsigned int __devinit get_memsize(struct tridentfb_par *par) { unsigned char tmp, tmp2; unsigned int k; @@ -737,12 +795,12 @@ static unsigned int __devinit get_memsize(void) if (memsize) k = memsize * Kb; else - switch (chip_id) { + switch (par->chip_id) { case CYBER9525DVD: k = 2560 * Kb; break; default: - tmp = read3X4(SPR) & 0x0F; + tmp = read3X4(par, SPR) & 0x0F; switch (tmp) { case 0x01: @@ -774,7 +832,7 @@ static unsigned int __devinit get_memsize(void) break; case 0x0E: /* XP */ - tmp2 = read3C4(0xC1); + tmp2 = vga_mm_rseq(par->io_virt, 0xC1); switch (tmp2) { case 0x00: k = 20 * Mb; @@ -812,26 +870,67 @@ static unsigned int __devinit get_memsize(void) static int tridentfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) { + struct tridentfb_par *par = info->par; int bpp = var->bits_per_pixel; + int line_length; + int ramdac = 230000; /* 230MHz for most 3D chips */ debug("enter\n"); /* check color depth */ if (bpp == 24) bpp = var->bits_per_pixel = 32; + if (bpp != 8 && bpp != 16 && bpp != 32) + return -EINVAL; + if (par->chip_id == TGUI9440 && bpp == 32) + return -EINVAL; /* check whether resolution fits on panel and in memory */ - if (flatpanel && nativex && var->xres > nativex) + if (par->flatpanel && nativex && var->xres > nativex) + return -EINVAL; + /* various resolution checks */ + var->xres = (var->xres + 7) & ~0x7; + if (var->xres > var->xres_virtual) + var->xres_virtual = var->xres; + if (var->yres > var->yres_virtual) + var->yres_virtual = var->yres; + if (var->xres_virtual > 4095 || var->yres > 2048) return -EINVAL; - if (var->xres * var->yres_virtual * bpp / 8 > info->fix.smem_len) + /* prevent from position overflow for acceleration */ + if (var->yres_virtual > 0xffff) + return -EINVAL; + line_length = var->xres_virtual * bpp / 8; + + if (!is3Dchip(par->chip_id) && + !(info->flags & FBINFO_HWACCEL_DISABLED)) { + /* acceleration requires line length to be power of 2 */ + if (line_length <= 512) + var->xres_virtual = 512 * 8 / bpp; + else if (line_length <= 1024) + var->xres_virtual = 1024 * 8 / bpp; + else if (line_length <= 2048) + var->xres_virtual = 2048 * 8 / bpp; + else if (line_length <= 4096) + var->xres_virtual = 4096 * 8 / bpp; + else if (line_length <= 8192) + var->xres_virtual = 8192 * 8 / bpp; + else + return -EINVAL; + + line_length = var->xres_virtual * bpp / 8; + } + + /* datasheet specifies how to set panning only up to 4 MB */ + if (line_length * (var->yres_virtual - var->yres) > (4 << 20)) + var->yres_virtual = ((4 << 20) / line_length) + var->yres; + + if (line_length * var->yres_virtual > info->fix.smem_len) return -EINVAL; switch (bpp) { case 8: var->red.offset = 0; - var->green.offset = 0; - var->blue.offset = 0; - var->red.length = 6; - var->green.length = 6; - var->blue.length = 6; + var->red.length = 8; + var->green = var->red; + var->blue = var->red; break; case 16: var->red.offset = 11; @@ -852,6 +951,33 @@ static int tridentfb_check_var(struct fb_var_screeninfo *var, default: return -EINVAL; } + + if (is_xp(par->chip_id)) + ramdac = 350000; + + switch (par->chip_id) { + case TGUI9440: + ramdac = (bpp >= 16) ? 45000 : 90000; + break; + case CYBER9320: + case TGUI9660: + ramdac = 135000; + break; + case PROVIDIA9685: + case CYBER9388: + case CYBER9382: + case CYBER9385: + ramdac = 170000; + break; + } + + /* The clock is doubled for 32 bpp */ + if (bpp == 32) + ramdac /= 2; + + if (PICOS2KHZ(var->pixclock) > ramdac) + return -EINVAL; + debug("exit\n"); return 0; @@ -862,25 +988,31 @@ static int tridentfb_check_var(struct fb_var_screeninfo *var, static int tridentfb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info) { + struct tridentfb_par *par = info->par; unsigned int offset; debug("enter\n"); - offset = (var->xoffset + (var->yoffset * var->xres)) + offset = (var->xoffset + (var->yoffset * var->xres_virtual)) * var->bits_per_pixel / 32; - info->var.xoffset = var->xoffset; - info->var.yoffset = var->yoffset; - set_screen_start(offset); + set_screen_start(par, offset); debug("exit\n"); return 0; } -#define shadowmode_on() write3CE(CyberControl, read3CE(CyberControl) | 0x81) -#define shadowmode_off() write3CE(CyberControl, read3CE(CyberControl) & 0x7E) +static inline void shadowmode_on(struct tridentfb_par *par) +{ + write3CE(par, CyberControl, read3CE(par, CyberControl) | 0x81); +} + +static inline void shadowmode_off(struct tridentfb_par *par) +{ + write3CE(par, CyberControl, read3CE(par, CyberControl) & 0x7E); +} /* Set the hardware to the requested video mode */ static int tridentfb_set_par(struct fb_info *info) { - struct tridentfb_par *par = (struct tridentfb_par *)(info->par); + struct tridentfb_par *par = info->par; u32 htotal, hdispend, hsyncstart, hsyncend, hblankstart, hblankend; u32 vtotal, vdispend, vsyncstart, vsyncend, vblankstart, vblankend; struct fb_var_screeninfo *var = &info->var; @@ -891,58 +1023,73 @@ static int tridentfb_set_par(struct fb_info *info) debug("enter\n"); hdispend = var->xres / 8 - 1; hsyncstart = (var->xres + var->right_margin) / 8; - hsyncend = var->hsync_len / 8; - htotal = - (var->xres + var->left_margin + var->right_margin + - var->hsync_len) / 8 - 10; + hsyncend = (var->xres + var->right_margin + var->hsync_len) / 8; + htotal = (var->xres + var->left_margin + var->right_margin + + var->hsync_len) / 8 - 5; hblankstart = hdispend + 1; - hblankend = htotal + 5; + hblankend = htotal + 3; vdispend = var->yres - 1; vsyncstart = var->yres + var->lower_margin; - vsyncend = var->vsync_len; - vtotal = var->upper_margin + vsyncstart + vsyncend - 2; - vblankstart = var->yres; - vblankend = vtotal + 2; + vsyncend = vsyncstart + var->vsync_len; + vtotal = var->upper_margin + vsyncend - 2; + vblankstart = vdispend + 1; + vblankend = vtotal; + + if (info->var.vmode & FB_VMODE_INTERLACED) { + vtotal /= 2; + vdispend /= 2; + vsyncstart /= 2; + vsyncend /= 2; + vblankstart /= 2; + vblankend /= 2; + } - crtc_unlock(); - write3CE(CyberControl, 8); + enable_mmio(par); + crtc_unlock(par); + write3CE(par, CyberControl, 8); + tmp = 0xEB; + if (var->sync & FB_SYNC_HOR_HIGH_ACT) + tmp &= ~0x40; + if (var->sync & FB_SYNC_VERT_HIGH_ACT) + tmp &= ~0x80; - if (flatpanel && var->xres < nativex) { + if (par->flatpanel && var->xres < nativex) { /* * on flat panels with native size larger * than requested resolution decide whether * we stretch or center */ - t_outb(0xEB, 0x3C2); + t_outb(par, tmp | 0xC0, VGA_MIS_W); - shadowmode_on(); + shadowmode_on(par); if (center) - screen_center(); + screen_center(par); else if (stretch) - screen_stretch(); + screen_stretch(par); } else { - t_outb(0x2B, 0x3C2); - write3CE(CyberControl, 8); + t_outb(par, tmp, VGA_MIS_W); + write3CE(par, CyberControl, 8); } /* vertical timing values */ - write3X4(CRTVTotal, vtotal & 0xFF); - write3X4(CRTVDispEnd, vdispend & 0xFF); - write3X4(CRTVSyncStart, vsyncstart & 0xFF); - write3X4(CRTVSyncEnd, (vsyncend & 0x0F)); - write3X4(CRTVBlankStart, vblankstart & 0xFF); - write3X4(CRTVBlankEnd, 0 /* p->vblankend & 0xFF */ ); + write3X4(par, VGA_CRTC_V_TOTAL, vtotal & 0xFF); + write3X4(par, VGA_CRTC_V_DISP_END, vdispend & 0xFF); + write3X4(par, VGA_CRTC_V_SYNC_START, vsyncstart & 0xFF); + write3X4(par, VGA_CRTC_V_SYNC_END, (vsyncend & 0x0F)); + write3X4(par, VGA_CRTC_V_BLANK_START, vblankstart & 0xFF); + write3X4(par, VGA_CRTC_V_BLANK_END, vblankend & 0xFF); /* horizontal timing values */ - write3X4(CRTHTotal, htotal & 0xFF); - write3X4(CRTHDispEnd, hdispend & 0xFF); - write3X4(CRTHSyncStart, hsyncstart & 0xFF); - write3X4(CRTHSyncEnd, (hsyncend & 0x1F) | ((hblankend & 0x20) << 2)); - write3X4(CRTHBlankStart, hblankstart & 0xFF); - write3X4(CRTHBlankEnd, 0 /* (p->hblankend & 0x1F) */ ); + write3X4(par, VGA_CRTC_H_TOTAL, htotal & 0xFF); + write3X4(par, VGA_CRTC_H_DISP, hdispend & 0xFF); + write3X4(par, VGA_CRTC_H_SYNC_START, hsyncstart & 0xFF); + write3X4(par, VGA_CRTC_H_SYNC_END, + (hsyncend & 0x1F) | ((hblankend & 0x20) << 2)); + write3X4(par, VGA_CRTC_H_BLANK_START, hblankstart & 0xFF); + write3X4(par, VGA_CRTC_H_BLANK_END, hblankend & 0x1F); /* higher bits of vertical timing values */ tmp = 0x10; @@ -954,39 +1101,43 @@ static int tridentfb_set_par(struct fb_info *info) if (vtotal & 0x200) tmp |= 0x20; if (vdispend & 0x200) tmp |= 0x40; if (vsyncstart & 0x200) tmp |= 0x80; - write3X4(CRTOverflow, tmp); + write3X4(par, VGA_CRTC_OVERFLOW, tmp); - tmp = read3X4(CRTHiOrd) | 0x08; /* line compare bit 10 */ + tmp = read3X4(par, CRTHiOrd) & 0x07; + tmp |= 0x08; /* line compare bit 10 */ if (vtotal & 0x400) tmp |= 0x80; if (vblankstart & 0x400) tmp |= 0x40; if (vsyncstart & 0x400) tmp |= 0x20; if (vdispend & 0x400) tmp |= 0x10; - write3X4(CRTHiOrd, tmp); + write3X4(par, CRTHiOrd, tmp); - tmp = 0; - if (htotal & 0x800) tmp |= 0x800 >> 11; - if (hblankstart & 0x800) tmp |= 0x800 >> 7; - write3X4(HorizOverflow, tmp); + tmp = (htotal >> 8) & 0x01; + tmp |= (hdispend >> 7) & 0x02; + tmp |= (hsyncstart >> 5) & 0x08; + tmp |= (hblankstart >> 4) & 0x10; + write3X4(par, HorizOverflow, tmp); tmp = 0x40; if (vblankstart & 0x200) tmp |= 0x20; //FIXME if (info->var.vmode & FB_VMODE_DOUBLE) tmp |= 0x80; /* double scan for 200 line modes */ - write3X4(CRTMaxScanLine, tmp); + write3X4(par, VGA_CRTC_MAX_SCAN, tmp); - write3X4(CRTLineCompare, 0xFF); - write3X4(CRTPRowScan, 0); - write3X4(CRTModeControl, 0xC3); + write3X4(par, VGA_CRTC_LINE_COMPARE, 0xFF); + write3X4(par, VGA_CRTC_PRESET_ROW, 0); + write3X4(par, VGA_CRTC_MODE, 0xC3); - write3X4(LinearAddReg, 0x20); /* enable linear addressing */ + write3X4(par, LinearAddReg, 0x20); /* enable linear addressing */ tmp = (info->var.vmode & FB_VMODE_INTERLACED) ? 0x84 : 0x80; - write3X4(CRTCModuleTest, tmp); /* enable access extended memory */ - - write3X4(GraphEngReg, 0x80); /* enable GE for text acceleration */ + /* enable access extended memory */ + write3X4(par, CRTCModuleTest, tmp); + tmp = read3CE(par, MiscIntContReg) & ~0x4; + if (info->var.vmode & FB_VMODE_INTERLACED) + tmp |= 0x4; + write3CE(par, MiscIntContReg, tmp); -#ifdef CONFIG_FB_TRIDENT_ACCEL - acc->init_accel(info->var.xres, bpp); -#endif + /* enable GE for text acceleration */ + write3X4(par, GraphEngReg, 0x80); switch (bpp) { case 8: @@ -1003,57 +1154,59 @@ static int tridentfb_set_par(struct fb_info *info) break; } - write3X4(PixelBusReg, tmp); + write3X4(par, PixelBusReg, tmp); - tmp = 0x10; - if (chipcyber) + tmp = read3X4(par, DRAMControl); + if (!is_oldprotect(par->chip_id)) + tmp |= 0x10; + if (iscyber(par->chip_id)) tmp |= 0x20; - write3X4(DRAMControl, tmp); /* both IO, linear enable */ - - write3X4(InterfaceSel, read3X4(InterfaceSel) | 0x40); - write3X4(Performance, 0x92); - write3X4(PCIReg, 0x07); /* MMIO & PCI read and write burst enable */ + write3X4(par, DRAMControl, tmp); /* both IO, linear enable */ + + write3X4(par, InterfaceSel, read3X4(par, InterfaceSel) | 0x40); + if (!is_xp(par->chip_id)) + write3X4(par, Performance, read3X4(par, Performance) | 0x10); + /* MMIO & PCI read and write burst enable */ + if (par->chip_id != TGUI9440 && par->chip_id != IMAGE975) + write3X4(par, PCIReg, read3X4(par, PCIReg) | 0x06); + + vga_mm_wseq(par->io_virt, 0, 3); + vga_mm_wseq(par->io_virt, 1, 1); /* set char clock 8 dots wide */ + /* enable 4 maps because needed in chain4 mode */ + vga_mm_wseq(par->io_virt, 2, 0x0F); + vga_mm_wseq(par->io_virt, 3, 0); + vga_mm_wseq(par->io_virt, 4, 0x0E); /* memory mode enable bitmaps ?? */ /* convert from picoseconds to kHz */ vclk = PICOS2KHZ(info->var.pixclock); - if (bpp == 32) + + /* divide clock by 2 if 32bpp chain4 mode display and CPU path */ + tmp = read3CE(par, MiscExtFunc) & 0xF0; + if (bpp == 32 || (par->chip_id == TGUI9440 && bpp == 16)) { + tmp |= 8; vclk *= 2; - set_vclk(vclk); - - write3C4(0, 3); - write3C4(1, 1); /* set char clock 8 dots wide */ - write3C4(2, 0x0F); /* enable 4 maps because needed in chain4 mode */ - write3C4(3, 0); - write3C4(4, 0x0E); /* memory mode enable bitmaps ?? */ - - write3CE(MiscExtFunc, (bpp == 32) ? 0x1A : 0x12); /* divide clock by 2 if 32bpp */ - /* chain4 mode display and CPU path */ - write3CE(0x5, 0x40); /* no CGA compat, allow 256 col */ - write3CE(0x6, 0x05); /* graphics mode */ - write3CE(0x7, 0x0F); /* planes? */ - - if (chip_id == CYBERBLADEXPAi1) { - /* This fixes snow-effect in 32 bpp */ - write3X4(CRTHSyncStart, 0x84); } + set_vclk(par, vclk); + write3CE(par, MiscExtFunc, tmp | 0x12); + write3CE(par, 0x5, 0x40); /* no CGA compat, allow 256 col */ + write3CE(par, 0x6, 0x05); /* graphics mode */ + write3CE(par, 0x7, 0x0F); /* planes? */ - writeAttr(0x10, 0x41); /* graphics mode and support 256 color modes */ - writeAttr(0x12, 0x0F); /* planes */ - writeAttr(0x13, 0); /* horizontal pel panning */ + /* graphics mode and support 256 color modes */ + writeAttr(par, 0x10, 0x41); + writeAttr(par, 0x12, 0x0F); /* planes */ + writeAttr(par, 0x13, 0); /* horizontal pel panning */ /* colors */ for (tmp = 0; tmp < 0x10; tmp++) - writeAttr(tmp, tmp); - readb(par->io_virt + CRT + 0x0A); /* flip-flop to index */ - t_outb(0x20, 0x3C0); /* enable attr */ + writeAttr(par, tmp, tmp); + fb_readb(par->io_virt + VGA_IS1_RC); /* flip-flop to index */ + t_outb(par, 0x20, VGA_ATT_W); /* enable attr */ switch (bpp) { case 8: tmp = 0; break; - case 15: - tmp = 0x10; - break; case 16: tmp = 0x30; break; @@ -1063,19 +1216,23 @@ static int tridentfb_set_par(struct fb_info *info) break; } - t_inb(0x3C8); - t_inb(0x3C6); - t_inb(0x3C6); - t_inb(0x3C6); - t_inb(0x3C6); - t_outb(tmp, 0x3C6); - t_inb(0x3C8); - - if (flatpanel) - set_number_of_lines(info->var.yres); - set_lwidth(info->var.xres * bpp / (4 * 16)); + t_inb(par, VGA_PEL_IW); + t_inb(par, VGA_PEL_MSK); + t_inb(par, VGA_PEL_MSK); + t_inb(par, VGA_PEL_MSK); + t_inb(par, VGA_PEL_MSK); + t_outb(par, tmp, VGA_PEL_MSK); + t_inb(par, VGA_PEL_IW); + + if (par->flatpanel) + set_number_of_lines(par, info->var.yres); + info->fix.line_length = info->var.xres_virtual * bpp / 8; + set_lwidth(par, info->fix.line_length / 8); + + if (!(info->flags & FBINFO_HWACCEL_DISABLED)) + par->init_accel(par, info->var.xres_virtual, bpp); + info->fix.visual = (bpp == 8) ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR; - info->fix.line_length = info->var.xres * (bpp >> 3); info->cmap.len = (bpp == 8) ? 256 : 16; debug("exit\n"); return 0; @@ -1087,17 +1244,18 @@ static int tridentfb_setcolreg(unsigned regno, unsigned red, unsigned green, struct fb_info *info) { int bpp = info->var.bits_per_pixel; + struct tridentfb_par *par = info->par; if (regno >= info->cmap.len) return 1; if (bpp == 8) { - t_outb(0xFF, 0x3C6); - t_outb(regno, 0x3C8); + t_outb(par, 0xFF, VGA_PEL_MSK); + t_outb(par, regno, VGA_PEL_IW); - t_outb(red >> 10, 0x3C9); - t_outb(green >> 10, 0x3C9); - t_outb(blue >> 10, 0x3C9); + t_outb(par, red >> 10, VGA_PEL_D); + t_outb(par, green >> 10, VGA_PEL_D); + t_outb(par, blue >> 10, VGA_PEL_D); } else if (regno < 16) { if (bpp == 16) { /* RGB 565 */ @@ -1108,28 +1266,28 @@ static int tridentfb_setcolreg(unsigned regno, unsigned red, unsigned green, col |= col << 16; ((u32 *)(info->pseudo_palette))[regno] = col; } else if (bpp == 32) /* ARGB 8888 */ - ((u32*)info->pseudo_palette)[regno] = + ((u32 *)info->pseudo_palette)[regno] = ((transp & 0xFF00) << 16) | ((red & 0xFF00) << 8) | ((green & 0xFF00)) | ((blue & 0xFF00) >> 8); } -/* debug("exit\n"); */ return 0; } -/* Try blanking the screen.For flat panels it does nothing */ +/* Try blanking the screen. For flat panels it does nothing */ static int tridentfb_blank(int blank_mode, struct fb_info *info) { unsigned char PMCont, DPMSCont; + struct tridentfb_par *par = info->par; debug("enter\n"); - if (flatpanel) + if (par->flatpanel) return 0; - t_outb(0x04, 0x83C8); /* Read DPMS Control */ - PMCont = t_inb(0x83C6) & 0xFC; - DPMSCont = read3CE(PowerStatus) & 0xFC; + t_outb(par, 0x04, 0x83C8); /* Read DPMS Control */ + PMCont = t_inb(par, 0x83C6) & 0xFC; + DPMSCont = read3CE(par, PowerStatus) & 0xFC; switch (blank_mode) { case FB_BLANK_UNBLANK: /* Screen: On, HSync: On, VSync: On */ @@ -1155,9 +1313,9 @@ static int tridentfb_blank(int blank_mode, struct fb_info *info) break; } - write3CE(PowerStatus, DPMSCont); - t_outb(4, 0x83C8); - t_outb(PMCont, 0x83C6); + write3CE(par, PowerStatus, DPMSCont); + t_outb(par, 4, 0x83C8); + t_outb(par, PMCont, 0x83C6); debug("exit\n"); @@ -1174,33 +1332,46 @@ static struct fb_ops tridentfb_ops = { .fb_set_par = tridentfb_set_par, .fb_fillrect = tridentfb_fillrect, .fb_copyarea = tridentfb_copyarea, - .fb_imageblit = cfb_imageblit, + .fb_imageblit = tridentfb_imageblit, +#ifdef CONFIG_FB_TRIDENT_ACCEL + .fb_sync = tridentfb_sync, +#endif }; -static int __devinit trident_pci_probe(struct pci_dev * dev, - const struct pci_device_id * id) +static int __devinit trident_pci_probe(struct pci_dev *dev, + const struct pci_device_id *id) { int err; unsigned char revision; + struct fb_info *info; + struct tridentfb_par *default_par; + int chip3D; + int chip_id; err = pci_enable_device(dev); if (err) return err; - chip_id = id->device; + info = framebuffer_alloc(sizeof(struct tridentfb_par), &dev->dev); + if (!info) + return -ENOMEM; + default_par = info->par; - if (chip_id == CYBERBLADEi1) - output("*** Please do use cyblafb, Cyberblade/i1 support " - "will soon be removed from tridentfb!\n"); + chip_id = id->device; +#ifndef CONFIG_FB_TRIDENT_ACCEL + noaccel = 1; +#endif /* If PCI id is 0x9660 then further detect chip type */ if (chip_id == TGUI9660) { - outb(RevisionID, 0x3C4); - revision = inb(0x3C5); + revision = vga_io_rseq(RevisionID); switch (revision) { + case 0x21: + chip_id = PROVIDIA9685; + break; case 0x22: case 0x23: chip_id = CYBER9397; @@ -1229,123 +1400,170 @@ static int __devinit trident_pci_probe(struct pci_dev * dev, } chip3D = is3Dchip(chip_id); - chipcyber = iscyber(chip_id); if (is_xp(chip_id)) { - acc = &accel_xp; + default_par->init_accel = xp_init_accel; + default_par->wait_engine = xp_wait_engine; + default_par->fill_rect = xp_fill_rect; + default_par->copy_rect = xp_copy_rect; + tridentfb_fix.accel = FB_ACCEL_TRIDENT_BLADEXP; } else if (is_blade(chip_id)) { - acc = &accel_blade; - } else { - acc = &accel_image; + default_par->init_accel = blade_init_accel; + default_par->wait_engine = blade_wait_engine; + default_par->fill_rect = blade_fill_rect; + default_par->copy_rect = blade_copy_rect; + default_par->image_blit = blade_image_blit; + tridentfb_fix.accel = FB_ACCEL_TRIDENT_BLADE3D; + } else if (chip3D) { /* 3DImage family left */ + default_par->init_accel = image_init_accel; + default_par->wait_engine = image_wait_engine; + default_par->fill_rect = image_fill_rect; + default_par->copy_rect = image_copy_rect; + tridentfb_fix.accel = FB_ACCEL_TRIDENT_3DIMAGE; + } else { /* TGUI 9440/96XX family */ + default_par->init_accel = tgui_init_accel; + default_par->wait_engine = xp_wait_engine; + default_par->fill_rect = tgui_fill_rect; + default_par->copy_rect = tgui_copy_rect; + tridentfb_fix.accel = FB_ACCEL_TRIDENT_TGUI; } - /* acceleration is on by default for 3D chips */ - defaultaccel = chip3D && !noaccel; - - fb_info.par = &default_par; + default_par->chip_id = chip_id; /* setup MMIO region */ tridentfb_fix.mmio_start = pci_resource_start(dev, 1); - tridentfb_fix.mmio_len = chip3D ? 0x20000 : 0x10000; + tridentfb_fix.mmio_len = pci_resource_len(dev, 1); - if (!request_mem_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len, "tridentfb")) { + if (!request_mem_region(tridentfb_fix.mmio_start, + tridentfb_fix.mmio_len, "tridentfb")) { debug("request_region failed!\n"); + framebuffer_release(info); return -1; } - default_par.io_virt = ioremap_nocache(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len); + default_par->io_virt = ioremap_nocache(tridentfb_fix.mmio_start, + tridentfb_fix.mmio_len); - if (!default_par.io_virt) { + if (!default_par->io_virt) { debug("ioremap failed\n"); err = -1; goto out_unmap1; } - enable_mmio(); + enable_mmio(default_par); /* setup framebuffer memory */ tridentfb_fix.smem_start = pci_resource_start(dev, 0); - tridentfb_fix.smem_len = get_memsize(); + tridentfb_fix.smem_len = get_memsize(default_par); - if (!request_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len, "tridentfb")) { + if (!request_mem_region(tridentfb_fix.smem_start, + tridentfb_fix.smem_len, "tridentfb")) { debug("request_mem_region failed!\n"); - disable_mmio(); + disable_mmio(info->par); err = -1; goto out_unmap1; } - fb_info.screen_base = ioremap_nocache(tridentfb_fix.smem_start, - tridentfb_fix.smem_len); + info->screen_base = ioremap_nocache(tridentfb_fix.smem_start, + tridentfb_fix.smem_len); - if (!fb_info.screen_base) { + if (!info->screen_base) { debug("ioremap failed\n"); err = -1; goto out_unmap2; } - output("%s board found\n", pci_name(dev)); - displaytype = get_displaytype(); + default_par->flatpanel = is_flatpanel(default_par); - if (flatpanel) - nativex = get_nativex(); + if (default_par->flatpanel) + nativex = get_nativex(default_par); - fb_info.fix = tridentfb_fix; - fb_info.fbops = &tridentfb_ops; + info->fix = tridentfb_fix; + info->fbops = &tridentfb_ops; + info->pseudo_palette = default_par->pseudo_pal; + info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN; + if (!noaccel && default_par->init_accel) { + info->flags &= ~FBINFO_HWACCEL_DISABLED; + info->flags |= FBINFO_HWACCEL_COPYAREA; + info->flags |= FBINFO_HWACCEL_FILLRECT; + } else + info->flags |= FBINFO_HWACCEL_DISABLED; - fb_info.flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN; -#ifdef CONFIG_FB_TRIDENT_ACCEL - fb_info.flags |= FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT; -#endif - fb_info.pseudo_palette = pseudo_pal; + info->pixmap.addr = kmalloc(4096, GFP_KERNEL); + if (!info->pixmap.addr) { + err = -ENOMEM; + goto out_unmap2; + } + + info->pixmap.size = 4096; + info->pixmap.buf_align = 4; + info->pixmap.scan_align = 1; + info->pixmap.access_align = 32; + info->pixmap.flags = FB_PIXMAP_SYSTEM; - if (!fb_find_mode(&default_var, &fb_info, + if (default_par->image_blit) { + info->flags |= FBINFO_HWACCEL_IMAGEBLIT; + info->pixmap.scan_align = 4; + } + + if (noaccel) { + printk(KERN_DEBUG "disabling acceleration\n"); + info->flags |= FBINFO_HWACCEL_DISABLED; + info->pixmap.scan_align = 1; + } + + if (!fb_find_mode(&info->var, info, mode_option, NULL, 0, NULL, bpp)) { err = -EINVAL; goto out_unmap2; } - err = fb_alloc_cmap(&fb_info.cmap, 256, 0); + err = fb_alloc_cmap(&info->cmap, 256, 0); if (err < 0) goto out_unmap2; - if (defaultaccel && acc) - default_var.accel_flags |= FB_ACCELF_TEXT; - else - default_var.accel_flags &= ~FB_ACCELF_TEXT; - default_var.activate |= FB_ACTIVATE_NOW; - fb_info.var = default_var; - fb_info.device = &dev->dev; - if (register_framebuffer(&fb_info) < 0) { - printk(KERN_ERR "tridentfb: could not register Trident framebuffer\n"); - fb_dealloc_cmap(&fb_info.cmap); + info->var.activate |= FB_ACTIVATE_NOW; + info->device = &dev->dev; + if (register_framebuffer(info) < 0) { + printk(KERN_ERR "tridentfb: could not register framebuffer\n"); + fb_dealloc_cmap(&info->cmap); err = -EINVAL; goto out_unmap2; } output("fb%d: %s frame buffer device %dx%d-%dbpp\n", - fb_info.node, fb_info.fix.id, default_var.xres, - default_var.yres, default_var.bits_per_pixel); + info->node, info->fix.id, info->var.xres, + info->var.yres, info->var.bits_per_pixel); + + pci_set_drvdata(dev, info); return 0; out_unmap2: - if (fb_info.screen_base) - iounmap(fb_info.screen_base); + kfree(info->pixmap.addr); + if (info->screen_base) + iounmap(info->screen_base); release_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len); - disable_mmio(); + disable_mmio(info->par); out_unmap1: - if (default_par.io_virt) - iounmap(default_par.io_virt); + if (default_par->io_virt) + iounmap(default_par->io_virt); release_mem_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len); + framebuffer_release(info); return err; } static void __devexit trident_pci_remove(struct pci_dev *dev) { - struct tridentfb_par *par = (struct tridentfb_par*)fb_info.par; - unregister_framebuffer(&fb_info); + struct fb_info *info = pci_get_drvdata(dev); + struct tridentfb_par *par = info->par; + + unregister_framebuffer(info); iounmap(par->io_virt); - iounmap(fb_info.screen_base); + iounmap(info->screen_base); release_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len); release_mem_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len); + pci_set_drvdata(dev, NULL); + kfree(info->pixmap.addr); + framebuffer_release(info); } /* List of boards that we are trying to support */ @@ -1358,6 +1576,7 @@ static struct pci_device_id trident_devices[] = { {PCI_VENDOR_ID_TRIDENT, CYBERBLADEAi1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, {PCI_VENDOR_ID_TRIDENT, CYBERBLADEAi1D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, {PCI_VENDOR_ID_TRIDENT, CYBERBLADEE4, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, + {PCI_VENDOR_ID_TRIDENT, TGUI9440, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, {PCI_VENDOR_ID_TRIDENT, TGUI9660, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, {PCI_VENDOR_ID_TRIDENT, IMAGE975, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, {PCI_VENDOR_ID_TRIDENT, IMAGE985, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, @@ -1399,9 +1618,9 @@ static int __init tridentfb_setup(char *options) if (!strncmp(opt, "noaccel", 7)) noaccel = 1; else if (!strncmp(opt, "fp", 2)) - displaytype = DISPLAY_FP; + fp = 1; else if (!strncmp(opt, "crt", 3)) - displaytype = DISPLAY_CRT; + fp = 0; else if (!strncmp(opt, "bpp=", 4)) bpp = simple_strtoul(opt + 4, NULL, 0); else if (!strncmp(opt, "center", 6)) @@ -1430,7 +1649,6 @@ static int __init tridentfb_init(void) return -ENODEV; tridentfb_setup(option); #endif - output("Trident framebuffer %s initializing\n", VERSION); return pci_register_driver(&tridentfb_pci_driver); } diff --git a/drivers/video/uvesafb.c b/drivers/video/uvesafb.c index cdbb56e..5074422 100644 --- a/drivers/video/uvesafb.c +++ b/drivers/video/uvesafb.c @@ -2054,8 +2054,8 @@ MODULE_PARM_DESC(maxhf, module_param(maxvf, ushort, 0); MODULE_PARM_DESC(maxvf, "Maximum vertical frequency [Hz], overrides EDID data"); -module_param_named(mode, mode_option, charp, 0); -MODULE_PARM_DESC(mode, +module_param(mode_option, charp, 0); +MODULE_PARM_DESC(mode_option, "Specify initial video mode as \"<xres>x<yres>[-<bpp>][@<refresh>]\""); module_param(vbemode, ushort, 0); MODULE_PARM_DESC(vbemode, diff --git a/drivers/video/vfb.c b/drivers/video/vfb.c index 072638a..93fe08d 100644 --- a/drivers/video/vfb.c +++ b/drivers/video/vfb.c @@ -443,19 +443,29 @@ static int vfb_mmap(struct fb_info *info, } #ifndef MODULE +/* + * The virtual framebuffer driver is only enabled if explicitly + * requested by passing 'video=vfb:' (or any actual options). + */ static int __init vfb_setup(char *options) { char *this_opt; + vfb_enable = 0; + + if (!options) + return 1; + vfb_enable = 1; - if (!options || !*options) + if (!*options) return 1; while ((this_opt = strsep(&options, ",")) != NULL) { if (!*this_opt) continue; - if (!strncmp(this_opt, "disable", 7)) + /* Test disable for backwards compatibility */ + if (!strcmp(this_opt, "disable")) vfb_enable = 0; } return 1; diff --git a/drivers/video/vga16fb.c b/drivers/video/vga16fb.c index 9b3c592..e31bca8 100644 --- a/drivers/video/vga16fb.c +++ b/drivers/video/vga16fb.c @@ -26,18 +26,6 @@ #include <asm/io.h> #include <video/vga.h> -#define GRAPHICS_ADDR_REG VGA_GFX_I /* Graphics address register. */ -#define GRAPHICS_DATA_REG VGA_GFX_D /* Graphics data register. */ - -#define SET_RESET_INDEX VGA_GFX_SR_VALUE /* Set/Reset Register index. */ -#define ENABLE_SET_RESET_INDEX VGA_GFX_SR_ENABLE /* Enable Set/Reset Register index. */ -#define DATA_ROTATE_INDEX VGA_GFX_DATA_ROTATE /* Data Rotate Register index. */ -#define GRAPHICS_MODE_INDEX VGA_GFX_MODE /* Graphics Mode Register index. */ -#define BIT_MASK_INDEX VGA_GFX_BIT_MASK /* Bit Mask Register index. */ - -#define dac_reg (VGA_PEL_IW) -#define dac_val (VGA_PEL_D) - #define VGA_FB_PHYS 0xA0000 #define VGA_FB_PHYS_LEN 65536 @@ -108,7 +96,7 @@ static struct fb_fix_screeninfo vga16fb_fix __initdata = { .visual = FB_VISUAL_PSEUDOCOLOR, .xpanstep = 8, .ypanstep = 1, - .line_length = 640/8, + .line_length = 640 / 8, .accel = FB_ACCEL_NONE }; @@ -135,23 +123,22 @@ static inline int setmode(int mode) { int oldmode; - vga_io_w(GRAPHICS_ADDR_REG, GRAPHICS_MODE_INDEX); - oldmode = vga_io_r(GRAPHICS_DATA_REG); - vga_io_w(GRAPHICS_DATA_REG, mode); + oldmode = vga_io_rgfx(VGA_GFX_MODE); + vga_io_w(VGA_GFX_D, mode); return oldmode; } /* Select the Bit Mask Register and return its value. */ static inline int selectmask(void) { - return vga_io_rgfx(BIT_MASK_INDEX); + return vga_io_rgfx(VGA_GFX_BIT_MASK); } /* Set the value of the Bit Mask Register. It must already have been selected with selectmask(). */ static inline void setmask(int mask) { - vga_io_w(GRAPHICS_DATA_REG, mask); + vga_io_w(VGA_GFX_D, mask); } /* Set the Data Rotate Register and return its old value. @@ -161,9 +148,8 @@ static inline int setop(int op) { int oldop; - vga_io_w(GRAPHICS_ADDR_REG, DATA_ROTATE_INDEX); - oldop = vga_io_r(GRAPHICS_DATA_REG); - vga_io_w(GRAPHICS_DATA_REG, op); + oldop = vga_io_rgfx(VGA_GFX_DATA_ROTATE); + vga_io_w(VGA_GFX_D, op); return oldop; } @@ -173,9 +159,8 @@ static inline int setsr(int sr) { int oldsr; - vga_io_w(GRAPHICS_ADDR_REG, ENABLE_SET_RESET_INDEX); - oldsr = vga_io_r(GRAPHICS_DATA_REG); - vga_io_w(GRAPHICS_DATA_REG, sr); + oldsr = vga_io_rgfx(VGA_GFX_SR_ENABLE); + vga_io_w(VGA_GFX_D, sr); return oldsr; } @@ -184,22 +169,21 @@ static inline int setcolor(int color) { int oldcolor; - vga_io_w(GRAPHICS_ADDR_REG, SET_RESET_INDEX); - oldcolor = vga_io_r(GRAPHICS_DATA_REG); - vga_io_w(GRAPHICS_DATA_REG, color); + oldcolor = vga_io_rgfx(VGA_GFX_SR_VALUE); + vga_io_w(VGA_GFX_D, color); return oldcolor; } /* Return the value in the Graphics Address Register. */ static inline int getindex(void) { - return vga_io_r(GRAPHICS_ADDR_REG); + return vga_io_r(VGA_GFX_I); } /* Set the value in the Graphics Address Register. */ static inline void setindex(int index) { - vga_io_w(GRAPHICS_ADDR_REG, index); + vga_io_w(VGA_GFX_I, index); } static void vga16fb_pan_var(struct fb_info *info, @@ -672,10 +656,10 @@ static void ega16_setpalette(int regno, unsigned red, unsigned green, unsigned b static void vga16_setpalette(int regno, unsigned red, unsigned green, unsigned blue) { - outb(regno, dac_reg); - outb(red >> 10, dac_val); - outb(green >> 10, dac_val); - outb(blue >> 10, dac_val); + outb(regno, VGA_PEL_IW); + outb(red >> 10, VGA_PEL_D); + outb(green >> 10, VGA_PEL_D); + outb(blue >> 10, VGA_PEL_D); } static int vga16fb_setcolreg(unsigned regno, unsigned red, unsigned green, @@ -719,28 +703,15 @@ static int vga16fb_pan_display(struct fb_var_screeninfo *var, blanking code was originally by Huang shi chao, and modified by Christoph Rimek (chrimek@toppoint.de) and todd j. derr (tjd@barefoot.org) for Linux. */ -#define attrib_port VGA_ATC_IW -#define seq_port_reg VGA_SEQ_I -#define seq_port_val VGA_SEQ_D -#define gr_port_reg VGA_GFX_I -#define gr_port_val VGA_GFX_D -#define video_misc_rd VGA_MIS_R -#define video_misc_wr VGA_MIS_W -#define vga_video_port_reg VGA_CRT_IC -#define vga_video_port_val VGA_CRT_DC static void vga_vesa_blank(struct vga16fb_par *par, int mode) { - unsigned char SeqCtrlIndex; - unsigned char CrtCtrlIndex; + unsigned char SeqCtrlIndex = vga_io_r(VGA_SEQ_I); + unsigned char CrtCtrlIndex = vga_io_r(VGA_CRT_IC); - //cli(); - SeqCtrlIndex = vga_io_r(seq_port_reg); - CrtCtrlIndex = vga_io_r(vga_video_port_reg); - /* save original values of VGA controller registers */ if(!par->vesa_blanked) { - par->vga_state.CrtMiscIO = vga_io_r(video_misc_rd); + par->vga_state.CrtMiscIO = vga_io_r(VGA_MIS_R); //sti(); par->vga_state.HorizontalTotal = vga_io_rcrt(0x00); /* HorizontalTotal */ @@ -756,12 +727,11 @@ static void vga_vesa_blank(struct vga16fb_par *par, int mode) /* assure that video is enabled */ /* "0x20" is VIDEO_ENABLE_bit in register 01 of sequencer */ - //cli(); vga_io_wseq(0x01, par->vga_state.ClockingMode | 0x20); /* test for vertical retrace in process.... */ if ((par->vga_state.CrtMiscIO & 0x80) == 0x80) - vga_io_w(video_misc_wr, par->vga_state.CrtMiscIO & 0xef); + vga_io_w(VGA_MIS_W, par->vga_state.CrtMiscIO & 0xef); /* * Set <End of vertical retrace> to minimum (0) and @@ -769,12 +739,10 @@ static void vga_vesa_blank(struct vga16fb_par *par, int mode) * Result: turn off vertical sync (VSync) pulse. */ if (mode & FB_BLANK_VSYNC_SUSPEND) { - outb_p(0x10,vga_video_port_reg); /* StartVertRetrace */ - outb_p(0xff,vga_video_port_val); /* maximum value */ - outb_p(0x11,vga_video_port_reg); /* EndVertRetrace */ - outb_p(0x40,vga_video_port_val); /* minimum (bits 0..3) */ - outb_p(0x07,vga_video_port_reg); /* Overflow */ - outb_p(par->vga_state.Overflow | 0x84,vga_video_port_val); /* bits 9,10 of vert. retrace */ + vga_io_wcrt(VGA_CRTC_V_SYNC_START, 0xff); + vga_io_wcrt(VGA_CRTC_V_SYNC_END, 0x40); + /* bits 9,10 of vert. retrace */ + vga_io_wcrt(VGA_CRTC_OVERFLOW, par->vga_state.Overflow | 0x84); } if (mode & FB_BLANK_HSYNC_SUSPEND) { @@ -783,29 +751,22 @@ static void vga_vesa_blank(struct vga16fb_par *par, int mode) * <Start of horizontal Retrace> to maximum * Result: turn off horizontal sync (HSync) pulse. */ - outb_p(0x04,vga_video_port_reg); /* StartHorizRetrace */ - outb_p(0xff,vga_video_port_val); /* maximum */ - outb_p(0x05,vga_video_port_reg); /* EndHorizRetrace */ - outb_p(0x00,vga_video_port_val); /* minimum (0) */ + vga_io_wcrt(VGA_CRTC_H_SYNC_START, 0xff); + vga_io_wcrt(VGA_CRTC_H_SYNC_END, 0x00); } /* restore both index registers */ - outb_p(SeqCtrlIndex,seq_port_reg); - outb_p(CrtCtrlIndex,vga_video_port_reg); - //sti(); + outb_p(SeqCtrlIndex, VGA_SEQ_I); + outb_p(CrtCtrlIndex, VGA_CRT_IC); } static void vga_vesa_unblank(struct vga16fb_par *par) { - unsigned char SeqCtrlIndex; - unsigned char CrtCtrlIndex; + unsigned char SeqCtrlIndex = vga_io_r(VGA_SEQ_I); + unsigned char CrtCtrlIndex = vga_io_r(VGA_CRT_IC); - //cli(); - SeqCtrlIndex = vga_io_r(seq_port_reg); - CrtCtrlIndex = vga_io_r(vga_video_port_reg); - /* restore original values of VGA controller registers */ - vga_io_w(video_misc_wr, par->vga_state.CrtMiscIO); + vga_io_w(VGA_MIS_W, par->vga_state.CrtMiscIO); /* HorizontalTotal */ vga_io_wcrt(0x00, par->vga_state.HorizontalTotal); @@ -827,9 +788,8 @@ static void vga_vesa_unblank(struct vga16fb_par *par) vga_io_wseq(0x01, par->vga_state.ClockingMode); /* restore index/control registers */ - vga_io_w(seq_port_reg, SeqCtrlIndex); - vga_io_w(vga_video_port_reg, CrtCtrlIndex); - //sti(); + vga_io_w(VGA_SEQ_I, SeqCtrlIndex); + vga_io_w(VGA_CRT_IC, CrtCtrlIndex); } static void vga_pal_blank(void) @@ -837,10 +797,10 @@ static void vga_pal_blank(void) int i; for (i=0; i<16; i++) { - outb_p (i, dac_reg) ; - outb_p (0, dac_val) ; - outb_p (0, dac_val) ; - outb_p (0, dac_val) ; + outb_p(i, VGA_PEL_IW); + outb_p(0, VGA_PEL_D); + outb_p(0, VGA_PEL_D); + outb_p(0, VGA_PEL_D); } } @@ -1087,12 +1047,15 @@ static void vga16fb_copyarea(struct fb_info *info, const struct fb_copyarea *are width = x2 - dx; height = y2 - dy; + if (sx + dx < old_dx || sy + dy < old_dy) + return; + /* update sx1,sy1 */ sx += (dx - old_dx); sy += (dy - old_dy); /* the source must be completely inside the virtual screen */ - if (sx < 0 || sy < 0 || (sx + width) > vxres || (sy + height) > vyres) + if (sx + width > vxres || sy + height > vyres) return; switch (info->fix.type) { @@ -1482,6 +1445,7 @@ static void __exit vga16fb_exit(void) platform_driver_unregister(&vga16fb_driver); } +MODULE_DESCRIPTION("Legacy VGA framebuffer device driver"); MODULE_LICENSE("GPL"); module_init(vga16fb_init); module_exit(vga16fb_exit); diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c index 7084e7e..5b78fd0 100644 --- a/drivers/virtio/virtio.c +++ b/drivers/virtio/virtio.c @@ -71,13 +71,6 @@ static int virtio_uevent(struct device *_dv, struct kobj_uevent_env *env) dev->id.device, dev->id.vendor); } -static struct bus_type virtio_bus = { - .name = "virtio", - .match = virtio_dev_match, - .dev_attrs = virtio_dev_attrs, - .uevent = virtio_uevent, -}; - static void add_status(struct virtio_device *dev, unsigned status) { dev->config->set_status(dev, dev->config->get_status(dev) | status); @@ -120,12 +113,16 @@ static int virtio_dev_probe(struct device *_d) set_bit(f, dev->features); } + /* Transport features always preserved to pass to finalize_features. */ + for (i = VIRTIO_TRANSPORT_F_START; i < VIRTIO_TRANSPORT_F_END; i++) + if (device_features & (1 << i)) + set_bit(i, dev->features); + err = drv->probe(dev); if (err) add_status(dev, VIRTIO_CONFIG_S_FAILED); else { - /* They should never have set feature bits beyond 32 */ - dev->config->set_features(dev, dev->features[0]); + dev->config->finalize_features(dev); add_status(dev, VIRTIO_CONFIG_S_DRIVER_OK); } return err; @@ -147,13 +144,20 @@ static int virtio_dev_remove(struct device *_d) return 0; } +static struct bus_type virtio_bus = { + .name = "virtio", + .match = virtio_dev_match, + .dev_attrs = virtio_dev_attrs, + .uevent = virtio_uevent, + .probe = virtio_dev_probe, + .remove = virtio_dev_remove, +}; + int register_virtio_driver(struct virtio_driver *driver) { /* Catch this early. */ BUG_ON(driver->feature_table_size && !driver->feature_table); driver->driver.bus = &virtio_bus; - driver->driver.probe = virtio_dev_probe; - driver->driver.remove = virtio_dev_remove; return driver_register(&driver->driver); } EXPORT_SYMBOL_GPL(register_virtio_driver); diff --git a/drivers/virtio/virtio_pci.c b/drivers/virtio/virtio_pci.c index eae72363..c7dc37c 100644 --- a/drivers/virtio/virtio_pci.c +++ b/drivers/virtio/virtio_pci.c @@ -94,12 +94,17 @@ static u32 vp_get_features(struct virtio_device *vdev) return ioread32(vp_dev->ioaddr + VIRTIO_PCI_HOST_FEATURES); } -/* virtio config->set_features() implementation */ -static void vp_set_features(struct virtio_device *vdev, u32 features) +/* virtio config->finalize_features() implementation */ +static void vp_finalize_features(struct virtio_device *vdev) { struct virtio_pci_device *vp_dev = to_vp_device(vdev); - iowrite32(features, vp_dev->ioaddr + VIRTIO_PCI_GUEST_FEATURES); + /* Give virtio_ring a chance to accept features. */ + vring_transport_features(vdev); + + /* We only support 32 feature bits. */ + BUILD_BUG_ON(ARRAY_SIZE(vdev->features) != 1); + iowrite32(vdev->features[0], vp_dev->ioaddr+VIRTIO_PCI_GUEST_FEATURES); } /* virtio config->get() implementation */ @@ -297,7 +302,7 @@ static struct virtio_config_ops virtio_pci_config_ops = { .find_vq = vp_find_vq, .del_vq = vp_del_vq, .get_features = vp_get_features, - .set_features = vp_set_features, + .finalize_features = vp_finalize_features, }; /* the PCI probing function */ diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index 72bf8bc..6eb5303 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -18,6 +18,7 @@ */ #include <linux/virtio.h> #include <linux/virtio_ring.h> +#include <linux/virtio_config.h> #include <linux/device.h> #ifdef DEBUG @@ -87,8 +88,11 @@ static int vring_add_buf(struct virtqueue *_vq, if (vq->num_free < out + in) { pr_debug("Can't add buf len %i - avail = %i\n", out + in, vq->num_free); - /* We notify *even if* VRING_USED_F_NO_NOTIFY is set here. */ - vq->notify(&vq->vq); + /* FIXME: for historical reasons, we force a notify here if + * there are outgoing parts to the buffer. Presumably the + * host should service the ring ASAP. */ + if (out) + vq->notify(&vq->vq); END_USE(vq); return -ENOSPC; } @@ -320,4 +324,19 @@ void vring_del_virtqueue(struct virtqueue *vq) } EXPORT_SYMBOL_GPL(vring_del_virtqueue); +/* Manipulates transport-specific feature bits. */ +void vring_transport_features(struct virtio_device *vdev) +{ + unsigned int i; + + for (i = VIRTIO_TRANSPORT_F_START; i < VIRTIO_TRANSPORT_F_END; i++) { + switch (i) { + default: + /* We don't understand this bit. */ + clear_bit(i, vdev->features); + } + } +} +EXPORT_SYMBOL_GPL(vring_transport_features); + MODULE_LICENSE("GPL"); diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig index ccb78f6..48399e1 100644 --- a/drivers/watchdog/Kconfig +++ b/drivers/watchdog/Kconfig @@ -788,8 +788,6 @@ config WATCHDOG_RIO machines. The watchdog timeout period is normally one minute but can be changed with a boot-time parameter. -# V850 Architecture - # XTENSA Architecture # diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile index 25b352b..edd305a 100644 --- a/drivers/watchdog/Makefile +++ b/drivers/watchdog/Makefile @@ -119,8 +119,6 @@ obj-$(CONFIG_SH_WDT) += shwdt.o # SPARC64 Architecture -# V850 Architecture - # XTENSA Architecture # Architecture Independant diff --git a/drivers/zorro/zorro-sysfs.c b/drivers/zorro/zorro-sysfs.c index 3da712c..5290552 100644 --- a/drivers/zorro/zorro-sysfs.c +++ b/drivers/zorro/zorro-sysfs.c @@ -15,7 +15,6 @@ #include <linux/zorro.h> #include <linux/stat.h> #include <linux/string.h> -#include <linux/fs.h> #include "zorro.h" |
