diff options
| -rw-r--r-- | drivers/firewire/core-card.c | 4 | ||||
| -rw-r--r-- | drivers/firewire/core-cdev.c | 51 | ||||
| -rw-r--r-- | drivers/firewire/core-device.c | 116 | ||||
| -rw-r--r-- | drivers/firewire/core-iso.c | 80 | ||||
| -rw-r--r-- | drivers/firewire/core-transaction.c | 26 | ||||
| -rw-r--r-- | drivers/firewire/core.h | 7 | ||||
| -rw-r--r-- | drivers/firewire/nosy.c | 20 | ||||
| -rw-r--r-- | drivers/firewire/ohci.c | 42 | ||||
| -rw-r--r-- | drivers/firewire/sbp2.c | 28 | ||||
| -rw-r--r-- | include/linux/firewire.h | 2 | ||||
| -rw-r--r-- | sound/firewire/cmp.c | 2 | ||||
| -rw-r--r-- | sound/firewire/lib.c | 28 | ||||
| -rw-r--r-- | sound/firewire/lib.h | 1 |
13 files changed, 218 insertions, 189 deletions
diff --git a/drivers/firewire/core-card.c b/drivers/firewire/core-card.c index f5552b3..57ea7f4 100644 --- a/drivers/firewire/core-card.c +++ b/drivers/firewire/core-card.c @@ -421,8 +421,8 @@ static void bm_work(struct work_struct *work) * root, and thus, IRM. */ new_root_id = local_id; - fw_notice(card, "%s, making local node (%02x) root\n", - "BM lock failed", new_root_id); + fw_notice(card, "BM lock failed (%s), making local node (%02x) root\n", + fw_rcode_string(rcode), new_root_id); goto pick_me; } } else if (card->bm_generation != generation) { diff --git a/drivers/firewire/core-cdev.c b/drivers/firewire/core-cdev.c index 2e6b245..2783f69 100644 --- a/drivers/firewire/core-cdev.c +++ b/drivers/firewire/core-cdev.c @@ -22,6 +22,7 @@ #include <linux/compat.h> #include <linux/delay.h> #include <linux/device.h> +#include <linux/dma-mapping.h> #include <linux/errno.h> #include <linux/firewire.h> #include <linux/firewire-cdev.h> @@ -70,6 +71,7 @@ struct client { u64 iso_closure; struct fw_iso_buffer buffer; unsigned long vm_start; + bool buffer_is_mapped; struct list_head phy_receiver_link; u64 phy_receiver_closure; @@ -959,11 +961,20 @@ static void iso_mc_callback(struct fw_iso_context *context, sizeof(e->interrupt), NULL, 0); } +static enum dma_data_direction iso_dma_direction(struct fw_iso_context *context) +{ + if (context->type == FW_ISO_CONTEXT_TRANSMIT) + return DMA_TO_DEVICE; + else + return DMA_FROM_DEVICE; +} + static int ioctl_create_iso_context(struct client *client, union ioctl_arg *arg) { struct fw_cdev_create_iso_context *a = &arg->create_iso_context; struct fw_iso_context *context; fw_iso_callback_t cb; + int ret; BUILD_BUG_ON(FW_CDEV_ISO_CONTEXT_TRANSMIT != FW_ISO_CONTEXT_TRANSMIT || FW_CDEV_ISO_CONTEXT_RECEIVE != FW_ISO_CONTEXT_RECEIVE || @@ -1004,8 +1015,21 @@ static int ioctl_create_iso_context(struct client *client, union ioctl_arg *arg) if (client->iso_context != NULL) { spin_unlock_irq(&client->lock); fw_iso_context_destroy(context); + return -EBUSY; } + if (!client->buffer_is_mapped) { + ret = fw_iso_buffer_map_dma(&client->buffer, + client->device->card, + iso_dma_direction(context)); + if (ret < 0) { + spin_unlock_irq(&client->lock); + fw_iso_context_destroy(context); + + return ret; + } + client->buffer_is_mapped = true; + } client->iso_closure = a->closure; client->iso_context = context; spin_unlock_irq(&client->lock); @@ -1651,7 +1675,6 @@ static long fw_device_op_compat_ioctl(struct file *file, static int fw_device_op_mmap(struct file *file, struct vm_area_struct *vma) { struct client *client = file->private_data; - enum dma_data_direction direction; unsigned long size; int page_count, ret; @@ -1674,20 +1697,28 @@ static int fw_device_op_mmap(struct file *file, struct vm_area_struct *vma) if (size & ~PAGE_MASK) return -EINVAL; - if (vma->vm_flags & VM_WRITE) - direction = DMA_TO_DEVICE; - else - direction = DMA_FROM_DEVICE; - - ret = fw_iso_buffer_init(&client->buffer, client->device->card, - page_count, direction); + ret = fw_iso_buffer_alloc(&client->buffer, page_count); if (ret < 0) return ret; - ret = fw_iso_buffer_map(&client->buffer, vma); + spin_lock_irq(&client->lock); + if (client->iso_context) { + ret = fw_iso_buffer_map_dma(&client->buffer, + client->device->card, + iso_dma_direction(client->iso_context)); + client->buffer_is_mapped = (ret == 0); + } + spin_unlock_irq(&client->lock); if (ret < 0) - fw_iso_buffer_destroy(&client->buffer, client->device->card); + goto fail; + ret = fw_iso_buffer_map_vma(&client->buffer, vma); + if (ret < 0) + goto fail; + + return 0; + fail: + fw_iso_buffer_destroy(&client->buffer, client->device->card); return ret; } diff --git a/drivers/firewire/core-device.c b/drivers/firewire/core-device.c index 68109e9..4d460ef 100644 --- a/drivers/firewire/core-device.c +++ b/drivers/firewire/core-device.c @@ -481,6 +481,7 @@ static int read_rom(struct fw_device *device, * generation changes under us, read_config_rom will fail and get retried. * It's better to start all over in this case because the node from which we * are reading the ROM may have changed the ROM during the reset. + * Returns either a result code or a negative error code. */ static int read_config_rom(struct fw_device *device, int generation) { @@ -488,7 +489,7 @@ static int read_config_rom(struct fw_device *device, int generation) const u32 *old_rom, *new_rom; u32 *rom, *stack; u32 sp, key; - int i, end, length, ret = -1; + int i, end, length, ret; rom = kmalloc(sizeof(*rom) * MAX_CONFIG_ROM_SIZE + sizeof(*stack) * MAX_CONFIG_ROM_SIZE, GFP_KERNEL); @@ -502,18 +503,21 @@ static int read_config_rom(struct fw_device *device, int generation) /* First read the bus info block. */ for (i = 0; i < 5; i++) { - if (read_rom(device, generation, i, &rom[i]) != RCODE_COMPLETE) + ret = read_rom(device, generation, i, &rom[i]); + if (ret != RCODE_COMPLETE) goto out; /* - * As per IEEE1212 7.2, during power-up, devices can + * As per IEEE1212 7.2, during initialization, devices can * reply with a 0 for the first quadlet of the config * rom to indicate that they are booting (for example, * if the firmware is on the disk of a external * harddisk). In that case we just fail, and the * retry mechanism will try again later. */ - if (i == 0 && rom[i] == 0) + if (i == 0 && rom[i] == 0) { + ret = RCODE_BUSY; goto out; + } } device->max_speed = device->node->max_speed; @@ -563,11 +567,14 @@ static int read_config_rom(struct fw_device *device, int generation) */ key = stack[--sp]; i = key & 0xffffff; - if (WARN_ON(i >= MAX_CONFIG_ROM_SIZE)) + if (WARN_ON(i >= MAX_CONFIG_ROM_SIZE)) { + ret = -ENXIO; goto out; + } /* Read header quadlet for the block to get the length. */ - if (read_rom(device, generation, i, &rom[i]) != RCODE_COMPLETE) + ret = read_rom(device, generation, i, &rom[i]); + if (ret != RCODE_COMPLETE) goto out; end = i + (rom[i] >> 16) + 1; if (end > MAX_CONFIG_ROM_SIZE) { @@ -590,8 +597,8 @@ static int read_config_rom(struct fw_device *device, int generation) * it references another block, and push it in that case. */ for (; i < end; i++) { - if (read_rom(device, generation, i, &rom[i]) != - RCODE_COMPLETE) + ret = read_rom(device, generation, i, &rom[i]); + if (ret != RCODE_COMPLETE) goto out; if ((key >> 30) != 3 || (rom[i] >> 30) < 2) @@ -619,8 +626,10 @@ static int read_config_rom(struct fw_device *device, int generation) old_rom = device->config_rom; new_rom = kmemdup(rom, length * 4, GFP_KERNEL); - if (new_rom == NULL) + if (new_rom == NULL) { + ret = -ENOMEM; goto out; + } down_write(&fw_device_rwsem); device->config_rom = new_rom; @@ -628,7 +637,7 @@ static int read_config_rom(struct fw_device *device, int generation) up_write(&fw_device_rwsem); kfree(old_rom); - ret = 0; + ret = RCODE_COMPLETE; device->max_rec = rom[2] >> 12 & 0xf; device->cmc = rom[2] >> 30 & 1; device->irmc = rom[2] >> 31 & 1; @@ -967,15 +976,17 @@ static void fw_device_init(struct work_struct *work) * device. */ - if (read_config_rom(device, device->generation) < 0) { + ret = read_config_rom(device, device->generation); + if (ret != RCODE_COMPLETE) { if (device->config_rom_retries < MAX_RETRIES && atomic_read(&device->state) == FW_DEVICE_INITIALIZING) { device->config_rom_retries++; fw_schedule_device_work(device, RETRY_DELAY); } else { if (device->node->link_on) - fw_notice(card, "giving up on Config ROM for node id %x\n", - device->node_id); + fw_notice(card, "giving up on node %x: reading config rom failed: %s\n", + device->node_id, + fw_rcode_string(ret)); if (device->node == card->root_node) fw_schedule_bm_work(card, 0); fw_device_release(&device->device); @@ -1069,31 +1080,30 @@ static void fw_device_init(struct work_struct *work) put_device(&device->device); /* our reference */ } -enum { - REREAD_BIB_ERROR, - REREAD_BIB_GONE, - REREAD_BIB_UNCHANGED, - REREAD_BIB_CHANGED, -}; - /* Reread and compare bus info block and header of root directory */ -static int reread_config_rom(struct fw_device *device, int generation) +static int reread_config_rom(struct fw_device *device, int generation, + bool *changed) { u32 q; - int i; + int i, rcode; for (i = 0; i < 6; i++) { - if (read_rom(device, generation, i, &q) != RCODE_COMPLETE) - return REREAD_BIB_ERROR; + rcode = read_rom(device, generation, i, &q); + if (rcode != RCODE_COMPLETE) + return rcode; if (i == 0 && q == 0) - return REREAD_BIB_GONE; + /* inaccessible (see read_config_rom); retry later */ + return RCODE_BUSY; - if (q != device->config_rom[i]) - return REREAD_BIB_CHANGED; + if (q != device->config_rom[i]) { + *changed = true; + return RCODE_COMPLETE; + } } - return REREAD_BIB_UNCHANGED; + *changed = false; + return RCODE_COMPLETE; } static void fw_device_refresh(struct work_struct *work) @@ -1101,23 +1111,14 @@ static void fw_device_refresh(struct work_struct *work) struct fw_device *device = container_of(work, struct fw_device, work.work); struct fw_card *card = device->card; - int node_id = device->node_id; - - switch (reread_config_rom(device, device->generation)) { - case REREAD_BIB_ERROR: - if (device->config_rom_retries < MAX_RETRIES / 2 && - atomic_read(&device->state) == FW_DEVICE_INITIALIZING) { - device->config_rom_retries++; - fw_schedule_device_work(device, RETRY_DELAY / 2); - - return; - } - goto give_up; + int ret, node_id = device->node_id; + bool changed; - case REREAD_BIB_GONE: - goto gone; + ret = reread_config_rom(device, device->generation, &changed); + if (ret != RCODE_COMPLETE) + goto failed_config_rom; - case REREAD_BIB_UNCHANGED: + if (!changed) { if (atomic_cmpxchg(&device->state, FW_DEVICE_INITIALIZING, FW_DEVICE_RUNNING) == FW_DEVICE_GONE) @@ -1126,9 +1127,6 @@ static void fw_device_refresh(struct work_struct *work) fw_device_update(work); device->config_rom_retries = 0; goto out; - - case REREAD_BIB_CHANGED: - break; } /* @@ -1137,16 +1135,9 @@ static void fw_device_refresh(struct work_struct *work) */ device_for_each_child(&device->device, NULL, shutdown_unit); - if (read_config_rom(device, device->generation) < 0) { - if (device->config_rom_retries < MAX_RETRIES && - atomic_read(&device->state) == FW_DEVICE_INITIALIZING) { - device->config_rom_retries++; - fw_schedule_device_work(device, RETRY_DELAY); - - return; - } - goto give_up; - } + ret = read_config_rom(device, device->generation); + if (ret != RCODE_COMPLETE) + goto failed_config_rom; fw_device_cdev_update(device); create_units(device); @@ -1163,9 +1154,16 @@ static void fw_device_refresh(struct work_struct *work) device->config_rom_retries = 0; goto out; - give_up: - fw_notice(card, "giving up on refresh of device %s\n", - dev_name(&device->device)); + failed_config_rom: + if (device->config_rom_retries < MAX_RETRIES && + atomic_read(&device->state) == FW_DEVICE_INITIALIZING) { + device->config_rom_retries++; + fw_schedule_device_work(device, RETRY_DELAY); + return; + } + + fw_notice(card, "giving up on refresh of device %s: %s\n", + dev_name(&device->device), fw_rcode_string(ret)); gone: atomic_set(&device->state, FW_DEVICE_GONE); PREPARE_DELAYED_WORK(&device->work, fw_device_shutdown); diff --git a/drivers/firewire/core-iso.c b/drivers/firewire/core-iso.c index d156582..8382e27 100644 --- a/drivers/firewire/core-iso.c +++ b/drivers/firewire/core-iso.c @@ -39,52 +39,73 @@ * Isochronous DMA context management */ -int fw_iso_buffer_init(struct fw_iso_buffer *buffer, struct fw_card *card, - int page_count, enum dma_data_direction direction) +int fw_iso_buffer_alloc(struct fw_iso_buffer *buffer, int page_count) { - int i, j; - dma_addr_t address; - - buffer->page_count = page_count; - buffer->direction = direction; + int i; + buffer->page_count = 0; + buffer->page_count_mapped = 0; buffer->pages = kmalloc(page_count * sizeof(buffer->pages[0]), GFP_KERNEL); if (buffer->pages == NULL) - goto out; + return -ENOMEM; - for (i = 0; i < buffer->page_count; i++) { + for (i = 0; i < page_count; i++) { buffer->pages[i] = alloc_page(GFP_KERNEL | GFP_DMA32 | __GFP_ZERO); if (buffer->pages[i] == NULL) - goto out_pages; + break; + } + buffer->page_count = i; + if (i < page_count) { + fw_iso_buffer_destroy(buffer, NULL); + return -ENOMEM; + } + return 0; +} + +int fw_iso_buffer_map_dma(struct fw_iso_buffer *buffer, struct fw_card *card, + enum dma_data_direction direction) +{ + dma_addr_t address; + int i; + + buffer->direction = direction; + + for (i = 0; i < buffer->page_count; i++) { address = dma_map_page(card->device, buffer->pages[i], 0, PAGE_SIZE, direction); - if (dma_mapping_error(card->device, address)) { - __free_page(buffer->pages[i]); - goto out_pages; - } + if (dma_mapping_error(card->device, address)) + break; + set_page_private(buffer->pages[i], address); } + buffer->page_count_mapped = i; + if (i < buffer->page_count) + return -ENOMEM; return 0; +} - out_pages: - for (j = 0; j < i; j++) { - address = page_private(buffer->pages[j]); - dma_unmap_page(card->device, address, - PAGE_SIZE, direction); - __free_page(buffer->pages[j]); - } - kfree(buffer->pages); - out: - buffer->pages = NULL; +int fw_iso_buffer_init(struct fw_iso_buffer *buffer, struct fw_card *card, + int page_count, enum dma_data_direction direction) +{ + int ret; + + ret = fw_iso_buffer_alloc(buffer, page_count); + if (ret < 0) + return ret; + + ret = fw_iso_buffer_map_dma(buffer, card, direction); + if (ret < 0) + fw_iso_buffer_destroy(buffer, card); - return -ENOMEM; + return ret; } EXPORT_SYMBOL(fw_iso_buffer_init); -int fw_iso_buffer_map(struct fw_iso_buffer *buffer, struct vm_area_struct *vma) +int fw_iso_buffer_map_vma(struct fw_iso_buffer *buffer, + struct vm_area_struct *vma) { unsigned long uaddr; int i, err; @@ -107,15 +128,18 @@ void fw_iso_buffer_destroy(struct fw_iso_buffer *buffer, int i; dma_addr_t address; - for (i = 0; i < buffer->page_count; i++) { + for (i = 0; i < buffer->page_count_mapped; i++) { address = page_private(buffer->pages[i]); dma_unmap_page(card->device, address, PAGE_SIZE, buffer->direction); - __free_page(buffer->pages[i]); } + for (i = 0; i < buffer->page_count; i++) + __free_page(buffer->pages[i]); kfree(buffer->pages); buffer->pages = NULL; + buffer->page_count = 0; + buffer->page_count_mapped = 0; } EXPORT_SYMBOL(fw_iso_buffer_destroy); diff --git a/drivers/firewire/core-transaction.c b/drivers/firewire/core-transaction.c index db8a965..780708d 100644 --- a/drivers/firewire/core-transaction.c +++ b/drivers/firewire/core-transaction.c @@ -1003,6 +1003,32 @@ void fw_core_handle_response(struct fw_card *card, struct fw_packet *p) } EXPORT_SYMBOL(fw_core_handle_response); +/** + * fw_rcode_string - convert a firewire result code to an error description + * @rcode: the result code + */ +const char *fw_rcode_string(int rcode) +{ + static const char *const names[] = { + [RCODE_COMPLETE] = "no error", + [RCODE_CONFLICT_ERROR] = "conflict error", + [RCODE_DATA_ERROR] = "data error", + [RCODE_TYPE_ERROR] = "type error", + [RCODE_ADDRESS_ERROR] = "address error", + [RCODE_SEND_ERROR] = "send error", + [RCODE_CANCELLED] = "timeout", + [RCODE_BUSY] = "busy", + [RCODE_GENERATION] = "bus reset", + [RCODE_NO_ACK] = "no ack", + }; + + if ((unsigned int)rcode < ARRAY_SIZE(names) && names[rcode]) + return names[rcode]; + else + return "unknown"; +} +EXPORT_SYMBOL(fw_rcode_string); + static const struct fw_address_region topology_map_region = { .start = CSR_REGISTER_BASE | CSR_TOPOLOGY_MAP, .end = CSR_REGISTER_BASE | CSR_TOPOLOGY_MAP_END, }; diff --git a/drivers/firewire/core.h b/drivers/firewire/core.h index b5a2f61..515a42c 100644 --- a/drivers/firewire/core.h +++ b/drivers/firewire/core.h @@ -3,6 +3,7 @@ #include <linux/compiler.h> #include <linux/device.h> +#include <linux/dma-mapping.h> #include <linux/fs.h> #include <linux/list.h> #include <linux/idr.h> @@ -154,7 +155,11 @@ void fw_node_event(struct fw_card *card, struct fw_node *node, int event); /* -iso */ -int fw_iso_buffer_map(struct fw_iso_buffer *buffer, struct vm_area_struct *vma); +int fw_iso_buffer_alloc(struct fw_iso_buffer *buffer, int page_count); +int fw_iso_buffer_map_dma(struct fw_iso_buffer *buffer, struct fw_card *card, + enum dma_data_direction direction); +int fw_iso_buffer_map_vma(struct fw_iso_buffer *buffer, + struct vm_area_struct *vma); /* -topology */ diff --git a/drivers/firewire/nosy.c b/drivers/firewire/nosy.c index a7c4422..4ebfb22 100644 --- a/drivers/firewire/nosy.c +++ b/drivers/firewire/nosy.c @@ -693,6 +693,8 @@ static struct pci_device_id pci_table[] __devinitdata = { { } /* Terminating entry */ }; +MODULE_DEVICE_TABLE(pci, pci_table); + static struct pci_driver lynx_pci_driver = { .name = driver_name, .id_table = pci_table, @@ -700,22 +702,8 @@ static struct pci_driver lynx_pci_driver = { .remove = remove_card, }; +module_pci_driver(lynx_pci_driver); + MODULE_AUTHOR("Kristian Hoegsberg"); MODULE_DESCRIPTION("Snoop mode driver for TI pcilynx 1394 controllers"); MODULE_LICENSE("GPL"); -MODULE_DEVICE_TABLE(pci, pci_table); - -static int __init nosy_init(void) -{ - return pci_register_driver(&lynx_pci_driver); -} - -static void __exit nosy_cleanup(void) -{ - pci_unregister_driver(&lynx_pci_driver); - - pr_info("Unloaded %s\n", driver_name); -} - -module_init(nosy_init); -module_exit(nosy_cleanup); diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c index 2b54600..c1af05e 100644 --- a/drivers/firewire/ohci.c +++ b/drivers/firewire/ohci.c @@ -1821,9 +1821,8 @@ static void bus_reset_work(struct work_struct *work) { struct fw_ohci *ohci = container_of(work, struct fw_ohci, bus_reset_work); - int self_id_count, i, j, reg; - int generation, new_generation; - unsigned long flags; + int self_id_count, generation, new_generation, i, j; + u32 reg; void *free_rom = NULL; dma_addr_t free_rom_bus = 0; bool is_new_root; @@ -1930,13 +1929,13 @@ static void bus_reset_work(struct work_struct *work) } /* FIXME: Document how the locking works. */ - spin_lock_irqsave(&ohci->lock, flags); + spin_lock_irq(&ohci->lock); ohci->generation = -1; /* prevent AT packet queueing */ context_stop(&ohci->at_request_ctx); context_stop(&ohci->at_response_ctx); - spin_unlock_irqrestore(&ohci->lock, flags); + spin_unlock_irq(&ohci->lock); /* * Per OHCI 1.2 draft, clause 7.2.3.3, hardware may leave unsent @@ -1946,7 +1945,7 @@ static void bus_reset_work(struct work_struct *work) at_context_flush(&ohci->at_request_ctx); at_context_flush(&ohci->at_response_ctx); - spin_lock_irqsave(&ohci->lock, flags); + spin_lock_irq(&ohci->lock); ohci->generation = generation; reg_write(ohci, OHCI1394_IntEventClear, OHCI1394_busReset); @@ -1990,7 +1989,7 @@ static void bus_reset_work(struct work_struct *work) reg_write(ohci, OHCI1394_PhyReqFilterLoSet, ~0); #endif - spin_unlock_irqrestore(&ohci->lock, flags); + spin_unlock_irq(&ohci->lock); if (free_rom) dma_free_coherent(ohci->card.device, CONFIG_ROM_SIZE, @@ -2402,7 +2401,6 @@ static int ohci_set_config_rom(struct fw_card *card, const __be32 *config_rom, size_t length) { struct fw_ohci *ohci; - unsigned long flags; __be32 *next_config_rom; dma_addr_t uninitialized_var(next_config_rom_bus); @@ -2441,7 +2439,7 @@ static int ohci_set_config_rom(struct fw_card *card, if (next_config_rom == NULL) return -ENOMEM; - spin_lock_irqsave(&ohci->lock, flags); + spin_lock_irq(&ohci->lock); /* * If there is not an already pending config_rom update, @@ -2467,7 +2465,7 @@ static int ohci_set_config_rom(struct fw_card *card, reg_write(ohci, OHCI1394_ConfigROMmap, ohci->next_config_rom_bus); - spin_unlock_irqrestore(&ohci->lock, flags); + spin_unlock_irq(&ohci->lock); /* If we didn't use the DMA allocation, delete it. */ if (next_config_rom != NULL) @@ -2891,10 +2889,9 @@ static struct fw_iso_context *ohci_allocate_iso_context(struct fw_card *card, descriptor_callback_t uninitialized_var(callback); u64 *uninitialized_var(channels); u32 *uninitialized_var(mask), uninitialized_var(regs); - unsigned long flags; int index, ret = -EBUSY; - spin_lock_irqsave(&ohci->lock, flags); + spin_lock_irq(&ohci->lock); switch (type) { case FW_ISO_CONTEXT_TRANSMIT: @@ -2938,7 +2935,7 @@ static struct fw_iso_context *ohci_allocate_iso_context(struct fw_card *card, ret = -ENOSYS; } - spin_unlock_irqrestore(&ohci->lock, flags); + spin_unlock_irq(&ohci->lock); if (index < 0) return ERR_PTR(ret); @@ -2964,7 +2961,7 @@ static struct fw_iso_context *ohci_allocate_iso_context(struct fw_card *card, out_with_header: free_page((unsigned long)ctx->header); out: - spin_lock_irqsave(&ohci->lock, flags); + spin_lock_irq(&ohci->lock); switch (type) { case FW_ISO_CONTEXT_RECEIVE: @@ -2977,7 +2974,7 @@ static struct fw_iso_context *ohci_allocate_iso_context(struct fw_card *card, } *mask |= 1 << index; - spin_unlock_irqrestore(&ohci->lock, flags); + spin_unlock_irq(&ohci->lock); return ERR_PTR(ret); } @@ -3789,6 +3786,8 @@ static struct pci_driver fw_ohci_pci_driver = { #endif }; +module_pci_driver(fw_ohci_pci_driver); + MODULE_AUTHOR("Kristian Hoegsberg <krh@bitplanet.net>"); MODULE_DESCRIPTION("Driver for PCI OHCI IEEE1394 controllers"); MODULE_LICENSE("GPL"); @@ -3797,16 +3796,3 @@ MODULE_LICENSE("GPL"); #ifndef CONFIG_IEEE1394_OHCI1394_MODULE MODULE_ALIAS("ohci1394"); #endif - -static int __init fw_ohci_init(void) -{ - return pci_register_driver(&fw_ohci_pci_driver); -} - -static void __exit fw_ohci_cleanup(void) -{ - pci_unregister_driver(&fw_ohci_pci_driver); -} - -module_init(fw_ohci_init); -module_exit(fw_ohci_cleanup); diff --git a/drivers/firewire/sbp2.c b/drivers/firewire/sbp2.c index b7e65d7..1162d6b 100644 --- a/drivers/firewire/sbp2.c +++ b/drivers/firewire/sbp2.c @@ -207,9 +207,8 @@ static const struct device *lu_dev(const struct sbp2_logical_unit *lu) #define SBP2_MAX_CDB_SIZE 16 /* - * The default maximum s/g segment size of a FireWire controller is - * usually 0x10000, but SBP-2 only allows 0xffff. Since buffers have to - * be quadlet-aligned, we set the length limit to 0xffff & ~3. + * The maximum SBP-2 data buffer size is 0xffff. We quadlet-align this + * for compatibility with earlier versions of this driver. */ #define SBP2_MAX_SEG_SIZE 0xfffc @@ -1163,7 +1162,8 @@ static int sbp2_probe(struct device *dev) shost->max_cmd_len = SBP2_MAX_CDB_SIZE; - if (scsi_add_host(shost, &unit->device) < 0) + if (scsi_add_host_with_dma(shost, &unit->device, + device->card->device) < 0) goto fail_shost_put; /* implicit directory ID */ @@ -1295,10 +1295,7 @@ static struct fw_driver sbp2_driver = { static void sbp2_unmap_scatterlist(struct device *card_device, struct sbp2_command_orb *orb) { - if (scsi_sg_count(orb->cmd)) - dma_unmap_sg(card_device, scsi_sglist(orb->cmd), - scsi_sg_count(orb->cmd), - orb->cmd->sc_data_direction); + scsi_dma_unmap(orb->cmd); if (orb->request.misc & cpu_to_be32(COMMAND_ORB_PAGE_TABLE_PRESENT)) dma_unmap_single(card_device, orb->page_table_bus, @@ -1404,9 +1401,8 @@ static int sbp2_map_scatterlist(struct sbp2_command_orb *orb, struct scatterlist *sg = scsi_sglist(orb->cmd); int i, n; - n = dma_map_sg(device->card->device, sg, scsi_sg_count(orb->cmd), - orb->cmd->sc_data_direction); - if (n == 0) + n = scsi_dma_map(orb->cmd); + if (n <= 0) goto fail; /* @@ -1452,8 +1448,7 @@ static int sbp2_map_scatterlist(struct sbp2_command_orb *orb, return 0; fail_page_table: - dma_unmap_sg(device->card->device, scsi_sglist(orb->cmd), - scsi_sg_count(orb->cmd), orb->cmd->sc_data_direction); + scsi_dma_unmap(orb->cmd); fail: return -ENOMEM; } @@ -1534,7 +1529,10 @@ static int sbp2_scsi_slave_alloc(struct scsi_device *sdev) sdev->allow_restart = 1; - /* SBP-2 requires quadlet alignment of the data buffers. */ + /* + * SBP-2 does not require any alignment, but we set it anyway + * for compatibility with earlier versions of this driver. + */ blk_queue_update_dma_alignment(sdev->request_queue, 4 - 1); if (lu->tgt->workarounds & SBP2_WORKAROUND_INQUIRY_36) @@ -1568,8 +1566,6 @@ static int sbp2_scsi_slave_configure(struct scsi_device *sdev) if (lu->tgt->workarounds & SBP2_WORKAROUND_128K_MAX_TRANS) blk_queue_max_hw_sectors(sdev->request_queue, 128 * 1024 / 512); - blk_queue_max_segment_size(sdev->request_queue, SBP2_MAX_SEG_SIZE); - return 0; } diff --git a/include/linux/firewire.h b/include/linux/firewire.h index e83c24a..7edcf10 100644 --- a/include/linux/firewire.h +++ b/include/linux/firewire.h @@ -349,6 +349,7 @@ int fw_cancel_transaction(struct fw_card *card, int fw_run_transaction(struct fw_card *card, int tcode, int destination_id, int generation, int speed, unsigned long long offset, void *payload, size_t length); +const char *fw_rcode_string(int rcode); static inline int fw_stream_packet_destination_id(int tag, int channel, int sy) { @@ -406,6 +407,7 @@ struct fw_iso_buffer { enum dma_data_direction direction; struct page **pages; int page_count; + int page_count_mapped; }; int fw_iso_buffer_init(struct fw_iso_buffer *buffer, struct fw_card *card, diff --git a/sound/firewire/cmp.c b/sound/firewire/cmp.c index 76294f2..645cb0b 100644 --- a/sound/firewire/cmp.c +++ b/sound/firewire/cmp.c @@ -84,7 +84,7 @@ static int pcr_modify(struct cmp_connection *c, return 0; io_error: - cmp_error(c, "transaction failed: %s\n", rcode_string(rcode)); + cmp_error(c, "transaction failed: %s\n", fw_rcode_string(rcode)); return -EIO; bus_reset: diff --git a/sound/firewire/lib.c b/sound/firewire/lib.c index 4750cea..14eb414 100644 --- a/sound/firewire/lib.c +++ b/sound/firewire/lib.c @@ -14,32 +14,6 @@ #define ERROR_RETRY_DELAY_MS 5 /** - * rcode_string - convert a firewire result code to a string - * @rcode: the result - */ -const char *rcode_string(unsigned int rcode) -{ - static const char *const names[] = { - [RCODE_COMPLETE] = "complete", - [RCODE_CONFLICT_ERROR] = "conflict error", - [RCODE_DATA_ERROR] = "data error", - [RCODE_TYPE_ERROR] = "type error", - [RCODE_ADDRESS_ERROR] = "address error", - [RCODE_SEND_ERROR] = "send error", - [RCODE_CANCELLED] = "cancelled", - [RCODE_BUSY] = "busy", - [RCODE_GENERATION] = "generation", - [RCODE_NO_ACK] = "no ack", - }; - - if (rcode < ARRAY_SIZE(names) && names[rcode]) - return names[rcode]; - else - return "unknown"; -} -EXPORT_SYMBOL(rcode_string); - -/** * snd_fw_transaction - send a request and wait for its completion * @unit: the driver's unit on the target device * @tcode: the transaction code @@ -71,7 +45,7 @@ int snd_fw_transaction(struct fw_unit *unit, int tcode, if (rcode_is_permanent_error(rcode) || ++tries >= 3) { dev_err(&unit->device, "transaction failed: %s\n", - rcode_string(rcode)); + fw_rcode_string(rcode)); return -EIO; } diff --git a/sound/firewire/lib.h b/sound/firewire/lib.h index 064f3fd..aef3014 100644 --- a/sound/firewire/lib.h +++ b/sound/firewire/lib.h @@ -8,7 +8,6 @@ struct fw_unit; int snd_fw_transaction(struct fw_unit *unit, int tcode, u64 offset, void *buffer, size_t length); -const char *rcode_string(unsigned int rcode); /* returns true if retrying the transaction would not make sense */ static inline bool rcode_is_permanent_error(int rcode) |
