diff options
| -rw-r--r-- | Documentation/w1/masters/ds2490 | 18 | ||||
| -rw-r--r-- | drivers/w1/masters/Kconfig | 27 | ||||
| -rw-r--r-- | drivers/w1/masters/Makefile | 7 | ||||
| -rw-r--r-- | drivers/w1/masters/ds2490.c (renamed from drivers/w1/masters/dscore.c) | 434 | ||||
| -rw-r--r-- | drivers/w1/masters/ds_w1_bridge.c | 174 | ||||
| -rw-r--r-- | drivers/w1/masters/dscore.h | 166 |
6 files changed, 321 insertions, 505 deletions
diff --git a/Documentation/w1/masters/ds2490 b/Documentation/w1/masters/ds2490 new file mode 100644 index 0000000..44a4918 --- /dev/null +++ b/Documentation/w1/masters/ds2490 @@ -0,0 +1,18 @@ +Kernel driver ds2490 +==================== + +Supported chips: + * Maxim DS2490 based + +Author: Evgeniy Polyakov <johnpol@2ka.mipt.ru> + + +Description +----------- + +The Maixm/Dallas Semiconductor DS2490 is a chip +which allows to build USB <-> W1 bridges. + +DS9490(R) is a USB <-> W1 bus master device +which has 0x81 family ID integrated chip and DS2490 +low-level operational chip. diff --git a/drivers/w1/masters/Kconfig b/drivers/w1/masters/Kconfig index c6bad4d..2fb4255 100644 --- a/drivers/w1/masters/Kconfig +++ b/drivers/w1/masters/Kconfig @@ -15,24 +15,15 @@ config W1_MASTER_MATROX This support is also available as a module. If so, the module will be called matrox_w1.ko. -config W1_MASTER_DS9490 - tristate "DS9490R transport layer driver" - depends on W1 && USB - help - Say Y here if you want to have a driver for DS9490R UWB <-> W1 bridge. - - This support is also available as a module. If so, the module - will be called ds9490r.ko. - -config W1_MASTER_DS9490_BRIDGE - tristate "DS9490R USB <-> W1 transport layer for 1-wire" - depends on W1_MASTER_DS9490 - help - Say Y here if you want to communicate with your 1-wire devices - using DS9490R USB bridge. - - This support is also available as a module. If so, the module - will be called ds_w1_bridge.ko. +config W1_MASTER_DS2490 + tristate "DS2490 USB <-> W1 transport layer for 1-wire" + depends on W1 && USB + help + Say Y here if you want to have a driver for DS2490 based USB <-> W1 bridges, + for example DS9490*. + + This support is also available as a module. If so, the module + will be called ds2490.ko. config W1_MASTER_DS2482 tristate "Maxim DS2482 I2C to 1-Wire bridge" diff --git a/drivers/w1/masters/Makefile b/drivers/w1/masters/Makefile index 1f3c8b9..4cee256 100644 --- a/drivers/w1/masters/Makefile +++ b/drivers/w1/masters/Makefile @@ -3,11 +3,6 @@ # obj-$(CONFIG_W1_MASTER_MATROX) += matrox_w1.o - -obj-$(CONFIG_W1_MASTER_DS9490) += ds9490r.o -ds9490r-objs := dscore.o - -obj-$(CONFIG_W1_MASTER_DS9490_BRIDGE) += ds_w1_bridge.o - +obj-$(CONFIG_W1_MASTER_DS2490) += ds2490.o obj-$(CONFIG_W1_MASTER_DS2482) += ds2482.o diff --git a/drivers/w1/masters/dscore.c b/drivers/w1/masters/ds2490.c index 2cf7776..6376778 100644 --- a/drivers/w1/masters/dscore.c +++ b/drivers/w1/masters/ds2490.c @@ -24,7 +24,136 @@ #include <linux/mod_devicetable.h> #include <linux/usb.h> -#include "dscore.h" +#include "../w1_int.h" +#include "../w1.h" + +/* COMMAND TYPE CODES */ +#define CONTROL_CMD 0x00 +#define COMM_CMD 0x01 +#define MODE_CMD 0x02 + +/* CONTROL COMMAND CODES */ +#define CTL_RESET_DEVICE 0x0000 +#define CTL_START_EXE 0x0001 +#define CTL_RESUME_EXE 0x0002 +#define CTL_HALT_EXE_IDLE 0x0003 +#define CTL_HALT_EXE_DONE 0x0004 +#define CTL_FLUSH_COMM_CMDS 0x0007 +#define CTL_FLUSH_RCV_BUFFER 0x0008 +#define CTL_FLUSH_XMT_BUFFER 0x0009 +#define CTL_GET_COMM_CMDS 0x000A + +/* MODE COMMAND CODES */ +#define MOD_PULSE_EN 0x0000 +#define MOD_SPEED_CHANGE_EN 0x0001 +#define MOD_1WIRE_SPEED 0x0002 +#define MOD_STRONG_PU_DURATION 0x0003 +#define MOD_PULLDOWN_SLEWRATE 0x0004 +#define MOD_PROG_PULSE_DURATION 0x0005 +#define MOD_WRITE1_LOWTIME 0x0006 +#define MOD_DSOW0_TREC 0x0007 + +/* COMMUNICATION COMMAND CODES */ +#define COMM_ERROR_ESCAPE 0x0601 +#define COMM_SET_DURATION 0x0012 +#define COMM_BIT_IO 0x0020 +#define COMM_PULSE 0x0030 +#define COMM_1_WIRE_RESET 0x0042 +#define COMM_BYTE_IO 0x0052 +#define COMM_MATCH_ACCESS 0x0064 +#define COMM_BLOCK_IO 0x0074 +#define COMM_READ_STRAIGHT 0x0080 +#define COMM_DO_RELEASE 0x6092 +#define COMM_SET_PATH 0x00A2 +#define COMM_WRITE_SRAM_PAGE 0x00B2 +#define COMM_WRITE_EPROM 0x00C4 +#define COMM_READ_CRC_PROT_PAGE 0x00D4 +#define COMM_READ_REDIRECT_PAGE_CRC 0x21E4 +#define COMM_SEARCH_ACCESS 0x00F4 + +/* Communication command bits */ +#define COMM_TYPE 0x0008 +#define COMM_SE 0x0008 +#define COMM_D 0x0008 +#define COMM_Z 0x0008 +#define COMM_CH 0x0008 +#define COMM_SM 0x0008 +#define COMM_R 0x0008 +#define COMM_IM 0x0001 + +#define COMM_PS 0x4000 +#define COMM_PST 0x4000 +#define COMM_CIB 0x4000 +#define COMM_RTS 0x4000 +#define COMM_DT 0x2000 +#define COMM_SPU 0x1000 +#define COMM_F 0x0800 +#define COMM_NTP 0x0400 +#define COMM_ICP 0x0200 +#define COMM_RST 0x0100 + +#define PULSE_PROG 0x01 +#define PULSE_SPUE 0x02 + +#define BRANCH_MAIN 0xCC +#define BRANCH_AUX 0x33 + +/* + * Duration of the strong pull-up pulse in milliseconds. + */ +#define PULLUP_PULSE_DURATION 750 + +/* Status flags */ +#define ST_SPUA 0x01 /* Strong Pull-up is active */ +#define ST_PRGA 0x02 /* 12V programming pulse is being generated */ +#define ST_12VP 0x04 /* external 12V programming voltage is present */ +#define ST_PMOD 0x08 /* DS2490 powered from USB and external sources */ +#define ST_HALT 0x10 /* DS2490 is currently halted */ +#define ST_IDLE 0x20 /* DS2490 is currently idle */ +#define ST_EPOF 0x80 + +#define SPEED_NORMAL 0x00 +#define SPEED_FLEXIBLE 0x01 +#define SPEED_OVERDRIVE 0x02 + +#define NUM_EP 4 +#define EP_CONTROL 0 +#define EP_STATUS 1 +#define EP_DATA_OUT 2 +#define EP_DATA_IN 3 + +struct ds_device +{ + struct list_head ds_entry; + + struct usb_device *udev; + struct usb_interface *intf; + + int ep[NUM_EP]; + + struct w1_bus_master master; +}; + +struct ds_status +{ + u8 enable; + u8 speed; + u8 pullup_dur; + u8 ppuls_dur; + u8 pulldown_slew; + u8 write1_time; + u8 write0_time; + u8 reserved0; + u8 status; + u8 command0; + u8 command1; + u8 command_buffer_status; + u8 data_out_buffer_status; + u8 data_in_buffer_status; + u8 reserved1; + u8 reserved2; + +}; static struct usb_device_id ds_id_table [] = { { USB_DEVICE(0x04fa, 0x2490) }, @@ -35,21 +164,12 @@ MODULE_DEVICE_TABLE(usb, ds_id_table); static int ds_probe(struct usb_interface *, const struct usb_device_id *); static void ds_disconnect(struct usb_interface *); -int ds_touch_bit(struct ds_device *, u8, u8 *); -int ds_read_byte(struct ds_device *, u8 *); -int ds_read_bit(struct ds_device *, u8 *); -int ds_write_byte(struct ds_device *, u8); -int ds_write_bit(struct ds_device *, u8); -static int ds_start_pulse(struct ds_device *, int); -int ds_reset(struct ds_device *, struct ds_status *); -struct ds_device * ds_get_device(void); -void ds_put_device(struct ds_device *); - static inline void ds_dump_status(unsigned char *, unsigned char *, int); static int ds_send_control(struct ds_device *, u16, u16); -static int ds_send_control_mode(struct ds_device *, u16, u16); static int ds_send_control_cmd(struct ds_device *, u16, u16); +static LIST_HEAD(ds_devices); +static DECLARE_MUTEX(ds_mutex); static struct usb_driver ds_driver = { .name = "DS9490R", @@ -58,20 +178,6 @@ static struct usb_driver ds_driver = { .id_table = ds_id_table, }; -static struct ds_device *ds_dev; - -struct ds_device * ds_get_device(void) -{ - if (ds_dev) - atomic_inc(&ds_dev->refcnt); - return ds_dev; -} - -void ds_put_device(struct ds_device *dev) -{ - atomic_dec(&dev->refcnt); -} - static int ds_send_control_cmd(struct ds_device *dev, u16 value, u16 index) { int err; @@ -86,7 +192,7 @@ static int ds_send_control_cmd(struct ds_device *dev, u16 value, u16 index) return err; } - +#if 0 static int ds_send_control_mode(struct ds_device *dev, u16 value, u16 index) { int err; @@ -101,7 +207,7 @@ static int ds_send_control_mode(struct ds_device *dev, u16 value, u16 index) return err; } - +#endif static int ds_send_control(struct ds_device *dev, u16 value, u16 index) { int err; @@ -324,7 +430,7 @@ static int ds_wait_status(struct ds_device *dev, struct ds_status *st) return 0; } -int ds_reset(struct ds_device *dev, struct ds_status *st) +static int ds_reset(struct ds_device *dev, struct ds_status *st) { int err; @@ -345,7 +451,7 @@ int ds_reset(struct ds_device *dev, struct ds_status *st) } #if 0 -int ds_set_speed(struct ds_device *dev, int speed) +static int ds_set_speed(struct ds_device *dev, int speed) { int err; @@ -395,7 +501,7 @@ static int ds_start_pulse(struct ds_device *dev, int delay) return err; } -int ds_touch_bit(struct ds_device *dev, u8 bit, u8 *tbit) +static int ds_touch_bit(struct ds_device *dev, u8 bit, u8 *tbit) { int err, count; struct ds_status st; @@ -427,7 +533,7 @@ int ds_touch_bit(struct ds_device *dev, u8 bit, u8 *tbit) return 0; } -int ds_write_bit(struct ds_device *dev, u8 bit) +static int ds_write_bit(struct ds_device *dev, u8 bit) { int err; struct ds_status st; @@ -441,7 +547,7 @@ int ds_write_bit(struct ds_device *dev, u8 bit) return 0; } -int ds_write_byte(struct ds_device *dev, u8 byte) +static int ds_write_byte(struct ds_device *dev, u8 byte) { int err; struct ds_status st; @@ -464,26 +570,7 @@ int ds_write_byte(struct ds_device *dev, u8 byte) return !(byte == rbyte); } -int ds_read_bit(struct ds_device *dev, u8 *bit) -{ - int err; - - err = ds_send_control_mode(dev, MOD_PULSE_EN, PULSE_SPUE); - if (err) - return err; - - err = ds_send_control(dev, COMM_BIT_IO | COMM_IM | COMM_SPU | COMM_D, 0); - if (err) - return err; - - err = ds_recv_data(dev, bit, sizeof(*bit)); - if (err < 0) - return err; - - return 0; -} - -int ds_read_byte(struct ds_device *dev, u8 *byte) +static int ds_read_byte(struct ds_device *dev, u8 *byte) { int err; struct ds_status st; @@ -501,7 +588,7 @@ int ds_read_byte(struct ds_device *dev, u8 *byte) return 0; } -int ds_read_block(struct ds_device *dev, u8 *buf, int len) +static int ds_read_block(struct ds_device *dev, u8 *buf, int len) { struct ds_status st; int err; @@ -527,7 +614,7 @@ int ds_read_block(struct ds_device *dev, u8 *buf, int len) return err; } -int ds_write_block(struct ds_device *dev, u8 *buf, int len) +static int ds_write_block(struct ds_device *dev, u8 *buf, int len) { int err; struct ds_status st; @@ -555,7 +642,7 @@ int ds_write_block(struct ds_device *dev, u8 *buf, int len) #if 0 -int ds_search(struct ds_device *dev, u64 init, u64 *buf, u8 id_number, int conditional_search) +static int ds_search(struct ds_device *dev, u64 init, u64 *buf, u8 id_number, int conditional_search) { int err; u16 value, index; @@ -584,7 +671,7 @@ int ds_search(struct ds_device *dev, u64 init, u64 *buf, u8 id_number, int condi return err/8; } -int ds_match_access(struct ds_device *dev, u64 init) +static int ds_match_access(struct ds_device *dev, u64 init) { int err; struct ds_status st; @@ -604,7 +691,7 @@ int ds_match_access(struct ds_device *dev, u64 init) return 0; } -int ds_set_path(struct ds_device *dev, u64 init) +static int ds_set_path(struct ds_device *dev, u64 init) { int err; struct ds_status st; @@ -630,45 +717,156 @@ int ds_set_path(struct ds_device *dev, u64 init) #endif /* 0 */ +static u8 ds9490r_touch_bit(void *data, u8 bit) +{ + u8 ret; + struct ds_device *dev = data; + + if (ds_touch_bit(dev, bit, &ret)) + return 0; + + return ret; +} + +static void ds9490r_write_bit(void *data, u8 bit) +{ + struct ds_device *dev = data; + + ds_write_bit(dev, bit); +} + +static void ds9490r_write_byte(void *data, u8 byte) +{ + struct ds_device *dev = data; + + ds_write_byte(dev, byte); +} + +static u8 ds9490r_read_bit(void *data) +{ + struct ds_device *dev = data; + int err; + u8 bit = 0; + + err = ds_touch_bit(dev, 1, &bit); + if (err) + return 0; + + return bit & 1; +} + +static u8 ds9490r_read_byte(void *data) +{ + struct ds_device *dev = data; + int err; + u8 byte = 0; + + err = ds_read_byte(dev, &byte); + if (err) + return 0; + + return byte; +} + +static void ds9490r_write_block(void *data, const u8 *buf, int len) +{ + struct ds_device *dev = data; + + ds_write_block(dev, (u8 *)buf, len); +} + +static u8 ds9490r_read_block(void *data, u8 *buf, int len) +{ + struct ds_device *dev = data; + int err; + + err = ds_read_block(dev, buf, len); + if (err < 0) + return 0; + + return len; +} + +static u8 ds9490r_reset(void *data) +{ + struct ds_device *dev = data; + struct ds_status st; + int err; + + memset(&st, 0, sizeof(st)); + + err = ds_reset(dev, &st); + if (err) + return 1; + + return 0; +} + +static int ds_w1_init(struct ds_device *dev) +{ + memset(&dev->master, 0, sizeof(struct w1_bus_master)); + + dev->master.data = dev; + dev->master.touch_bit = &ds9490r_touch_bit; + dev->master.read_bit = &ds9490r_read_bit; + dev->master.write_bit = &ds9490r_write_bit; + dev->master.read_byte = &ds9490r_read_byte; + dev->master.write_byte = &ds9490r_write_byte; + dev->master.read_block = &ds9490r_read_block; + dev->master.write_block = &ds9490r_write_block; + dev->master.reset_bus = &ds9490r_reset; + + return w1_add_master_device(&dev->master); +} + +static void ds_w1_fini(struct ds_device *dev) +{ + w1_remove_master_device(&dev->master); +} + static int ds_probe(struct usb_interface *intf, const struct usb_device_id *udev_id) { struct usb_device *udev = interface_to_usbdev(intf); struct usb_endpoint_descriptor *endpoint; struct usb_host_interface *iface_desc; + struct ds_device *dev; int i, err; - ds_dev = kmalloc(sizeof(struct ds_device), GFP_KERNEL); - if (!ds_dev) { + dev = kmalloc(sizeof(struct ds_device), GFP_KERNEL); + if (!dev) { printk(KERN_INFO "Failed to allocate new DS9490R structure.\n"); return -ENOMEM; } + dev->udev = usb_get_dev(udev); + if (!dev->udev) { + err = -ENOMEM; + goto err_out_free; + } + memset(dev->ep, 0, sizeof(dev->ep)); - ds_dev->udev = usb_get_dev(udev); - usb_set_intfdata(intf, ds_dev); + usb_set_intfdata(intf, dev); - err = usb_set_interface(ds_dev->udev, intf->altsetting[0].desc.bInterfaceNumber, 3); + err = usb_set_interface(dev->udev, intf->altsetting[0].desc.bInterfaceNumber, 3); if (err) { printk(KERN_ERR "Failed to set alternative setting 3 for %d interface: err=%d.\n", intf->altsetting[0].desc.bInterfaceNumber, err); - return err; + goto err_out_clear; } - err = usb_reset_configuration(ds_dev->udev); + err = usb_reset_configuration(dev->udev); if (err) { printk(KERN_ERR "Failed to reset configuration: err=%d.\n", err); - return err; + goto err_out_clear; } iface_desc = &intf->altsetting[0]; if (iface_desc->desc.bNumEndpoints != NUM_EP-1) { printk(KERN_INFO "Num endpoints=%d. It is not DS9490R.\n", iface_desc->desc.bNumEndpoints); - return -ENODEV; + err = -EINVAL; + goto err_out_clear; } - atomic_set(&ds_dev->refcnt, 0); - memset(ds_dev->ep, 0, sizeof(ds_dev->ep)); - /* * This loop doesn'd show control 0 endpoint, * so we will fill only 1-3 endpoints entry. @@ -676,54 +874,31 @@ static int ds_probe(struct usb_interface *intf, for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { endpoint = &iface_desc->endpoint[i].desc; - ds_dev->ep[i+1] = endpoint->bEndpointAddress; - + dev->ep[i+1] = endpoint->bEndpointAddress; +#if 0 printk("%d: addr=%x, size=%d, dir=%s, type=%x\n", i, endpoint->bEndpointAddress, le16_to_cpu(endpoint->wMaxPacketSize), (endpoint->bEndpointAddress & USB_DIR_IN)?"IN":"OUT", endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK); +#endif } -#if 0 - { - int err, i; - u64 buf[3]; - u64 init=0xb30000002078ee81ull; - struct ds_status st; - - ds_reset(ds_dev, &st); - err = ds_search(ds_dev, init, buf, 3, 0); - if (err < 0) - return err; - for (i=0; i<err; ++i) - printk("%d: %llx\n", i, buf[i]); - - printk("Resetting...\n"); - ds_reset(ds_dev, &st); - printk("Setting path for %llx.\n", init); - err = ds_set_path(ds_dev, init); - if (err) - return err; - printk("Calling MATCH_ACCESS.\n"); - err = ds_match_access(ds_dev, init); - if (err) - return err; - - printk("Searching the bus...\n"); - err = ds_search(ds_dev, init, buf, 3, 0); - - printk("ds_search() returned %d\n", err); - - if (err < 0) - return err; - for (i=0; i<err; ++i) - printk("%d: %llx\n", i, buf[i]); + err = ds_w1_init(dev); + if (err) + goto err_out_clear; - return 0; - } -#endif + down(&ds_mutex); + list_add_tail(&dev->ds_entry, &ds_devices); + up(&ds_mutex); return 0; + +err_out_clear: + usb_set_intfdata(intf, NULL); + usb_put_dev(dev->udev); +err_out_free: + kfree(dev); + return err; } static void ds_disconnect(struct usb_interface *intf) @@ -731,19 +906,19 @@ static void ds_disconnect(struct usb_interface *intf) struct ds_device *dev; dev = usb_get_intfdata(intf); - usb_set_intfdata(intf, NULL); + if (!dev) + return; - while (atomic_read(&dev->refcnt)) { - printk(KERN_INFO "Waiting for DS to become free: refcnt=%d.\n", - atomic_read(&dev->refcnt)); + down(&ds_mutex); + list_del(&dev->ds_entry); + up(&ds_mutex); - if (msleep_interruptible(1000)) - flush_signals(current); - } + ds_w1_fini(dev); + + usb_set_intfdata(intf, NULL); usb_put_dev(dev->udev); kfree(dev); - ds_dev = NULL; } static int ds_init(void) @@ -769,27 +944,4 @@ module_exit(ds_fini); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Evgeniy Polyakov <johnpol@2ka.mipt.ru>"); - -EXPORT_SYMBOL(ds_touch_bit); -EXPORT_SYMBOL(ds_read_byte); -EXPORT_SYMBOL(ds_read_bit); -EXPORT_SYMBOL(ds_read_block); -EXPORT_SYMBOL(ds_write_byte); -EXPORT_SYMBOL(ds_write_bit); -EXPORT_SYMBOL(ds_write_block); -EXPORT_SYMBOL(ds_reset); -EXPORT_SYMBOL(ds_get_device); -EXPORT_SYMBOL(ds_put_device); - -/* - * This functions can be used for EEPROM programming, - * when driver will be included into mainline this will - * require uncommenting. - */ -#if 0 -EXPORT_SYMBOL(ds_start_pulse); -EXPORT_SYMBOL(ds_set_speed); -EXPORT_SYMBOL(ds_detect); -EXPORT_SYMBOL(ds_stop_pulse); -EXPORT_SYMBOL(ds_search); -#endif +MODULE_DESCRIPTION("DS2490 USB <-> W1 bus master driver (DS9490*)"); diff --git a/drivers/w1/masters/ds_w1_bridge.c b/drivers/w1/masters/ds_w1_bridge.c deleted file mode 100644 index 5d30783..0000000 --- a/drivers/w1/masters/ds_w1_bridge.c +++ /dev/null @@ -1,174 +0,0 @@ -/* - * ds_w1_bridge.c - * - * Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.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/module.h> -#include <linux/types.h> - -#include "../w1.h" -#include "../w1_int.h" -#include "dscore.h" - -static struct ds_device *ds_dev; -static struct w1_bus_master *ds_bus_master; - -static u8 ds9490r_touch_bit(void *data, u8 bit) -{ - u8 ret; - struct ds_device *dev = data; - - if (ds_touch_bit(dev, bit, &ret)) - return 0; - - return ret; -} - -static void ds9490r_write_bit(void *data, u8 bit) -{ - struct ds_device *dev = data; - - ds_write_bit(dev, bit); -} - -static void ds9490r_write_byte(void *data, u8 byte) -{ - struct ds_device *dev = data; - - ds_write_byte(dev, byte); -} - -static u8 ds9490r_read_bit(void *data) -{ - struct ds_device *dev = data; - int err; - u8 bit = 0; - - err = ds_touch_bit(dev, 1, &bit); - if (err) - return 0; - //err = ds_read_bit(dev, &bit); - //if (err) - // return 0; - - return bit & 1; -} - -static u8 ds9490r_read_byte(void *data) -{ - struct ds_device *dev = data; - int err; - u8 byte = 0; - - err = ds_read_byte(dev, &byte); - if (err) - return 0; - - return byte; -} - -static void ds9490r_write_block(void *data, const u8 *buf, int len) -{ - struct ds_device *dev = data; - - ds_write_block(dev, (u8 *)buf, len); -} - -static u8 ds9490r_read_block(void *data, u8 *buf, int len) -{ - struct ds_device *dev = data; - int err; - - err = ds_read_block(dev, buf, len); - if (err < 0) - return 0; - - return len; -} - -static u8 ds9490r_reset(void *data) -{ - struct ds_device *dev = data; - struct ds_status st; - int err; - - memset(&st, 0, sizeof(st)); - - err = ds_reset(dev, &st); - if (err) - return 1; - - return 0; -} - -static int __devinit ds_w1_init(void) -{ - int err; - - ds_bus_master = kmalloc(sizeof(*ds_bus_master), GFP_KERNEL); - if (!ds_bus_master) { - printk(KERN_ERR "Failed to allocate DS9490R USB<->W1 bus_master structure.\n"); - return -ENOMEM; - } - - ds_dev = ds_get_device(); - if (!ds_dev) { - printk(KERN_ERR "DS9490R is not registered.\n"); - err = -ENODEV; - goto err_out_free_bus_master; - } - - memset(ds_bus_master, 0, sizeof(*ds_bus_master)); - - ds_bus_master->data = ds_dev; - ds_bus_master->touch_bit = &ds9490r_touch_bit; - ds_bus_master->read_bit = &ds9490r_read_bit; - ds_bus_master->write_bit = &ds9490r_write_bit; - ds_bus_master->read_byte = &ds9490r_read_byte; - ds_bus_master->write_byte = &ds9490r_write_byte; - ds_bus_master->read_block = &ds9490r_read_block; - ds_bus_master->write_block = &ds9490r_write_block; - ds_bus_master->reset_bus = &ds9490r_reset; - - err = w1_add_master_device(ds_bus_master); - if (err) - goto err_out_put_device; - - return 0; - -err_out_put_device: - ds_put_device(ds_dev); -err_out_free_bus_master: - kfree(ds_bus_master); - - return err; -} - -static void __devexit ds_w1_fini(void) -{ - w1_remove_master_device(ds_bus_master); - ds_put_device(ds_dev); - kfree(ds_bus_master); -} - -module_init(ds_w1_init); -module_exit(ds_w1_fini); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Evgeniy Polyakov <johnpol@2ka.mipt.ru>"); diff --git a/drivers/w1/masters/dscore.h b/drivers/w1/masters/dscore.h deleted file mode 100644 index 6cf5671..0000000 --- a/drivers/w1/masters/dscore.h +++ /dev/null @@ -1,166 +0,0 @@ -/* - * dscore.h - * - * Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.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 - */ - -#ifndef __DSCORE_H -#define __DSCORE_H - -#include <linux/usb.h> -#include <asm/atomic.h> - -/* COMMAND TYPE CODES */ -#define CONTROL_CMD 0x00 -#define COMM_CMD 0x01 -#define MODE_CMD 0x02 - -/* CONTROL COMMAND CODES */ -#define CTL_RESET_DEVICE 0x0000 -#define CTL_START_EXE 0x0001 -#define CTL_RESUME_EXE 0x0002 -#define CTL_HALT_EXE_IDLE 0x0003 -#define CTL_HALT_EXE_DONE 0x0004 -#define CTL_FLUSH_COMM_CMDS 0x0007 -#define CTL_FLUSH_RCV_BUFFER 0x0008 -#define CTL_FLUSH_XMT_BUFFER 0x0009 -#define CTL_GET_COMM_CMDS 0x000A - -/* MODE COMMAND CODES */ -#define MOD_PULSE_EN 0x0000 -#define MOD_SPEED_CHANGE_EN 0x0001 -#define MOD_1WIRE_SPEED 0x0002 -#define MOD_STRONG_PU_DURATION 0x0003 -#define MOD_PULLDOWN_SLEWRATE 0x0004 -#define MOD_PROG_PULSE_DURATION 0x0005 -#define MOD_WRITE1_LOWTIME 0x0006 -#define MOD_DSOW0_TREC 0x0007 - -/* COMMUNICATION COMMAND CODES */ -#define COMM_ERROR_ESCAPE 0x0601 -#define COMM_SET_DURATION 0x0012 -#define COMM_BIT_IO 0x0020 -#define COMM_PULSE 0x0030 -#define COMM_1_WIRE_RESET 0x0042 -#define COMM_BYTE_IO 0x0052 -#define COMM_MATCH_ACCESS 0x0064 -#define COMM_BLOCK_IO 0x0074 -#define COMM_READ_STRAIGHT 0x0080 -#define COMM_DO_RELEASE 0x6092 -#define COMM_SET_PATH 0x00A2 -#define COMM_WRITE_SRAM_PAGE 0x00B2 -#define COMM_WRITE_EPROM 0x00C4 -#define COMM_READ_CRC_PROT_PAGE 0x00D4 -#define COMM_READ_REDIRECT_PAGE_CRC 0x21E4 -#define COMM_SEARCH_ACCESS 0x00F4 - -/* Communication command bits */ -#define COMM_TYPE 0x0008 -#define COMM_SE 0x0008 -#define COMM_D 0x0008 -#define COMM_Z 0x0008 -#define COMM_CH 0x0008 -#define COMM_SM 0x0008 -#define COMM_R 0x0008 -#define COMM_IM 0x0001 - -#define COMM_PS 0x4000 -#define COMM_PST 0x4000 -#define COMM_CIB 0x4000 -#define COMM_RTS 0x4000 -#define COMM_DT 0x2000 -#define COMM_SPU 0x1000 -#define COMM_F 0x0800 -#define COMM_NTP 0x0400 -#define COMM_ICP 0x0200 -#define COMM_RST 0x0100 - -#define PULSE_PROG 0x01 -#define PULSE_SPUE 0x02 - -#define BRANCH_MAIN 0xCC -#define BRANCH_AUX 0x33 - -/* - * Duration of the strong pull-up pulse in milliseconds. - */ -#define PULLUP_PULSE_DURATION 750 - -/* Status flags */ -#define ST_SPUA 0x01 /* Strong Pull-up is active */ -#define ST_PRGA 0x02 /* 12V programming pulse is being generated */ -#define ST_12VP 0x04 /* external 12V programming voltage is present */ -#define ST_PMOD 0x08 /* DS2490 powered from USB and external sources */ -#define ST_HALT 0x10 /* DS2490 is currently halted */ -#define ST_IDLE 0x20 /* DS2490 is currently idle */ -#define ST_EPOF 0x80 - -#define SPEED_NORMAL 0x00 -#define SPEED_FLEXIBLE 0x01 -#define SPEED_OVERDRIVE 0x02 - -#define NUM_EP 4 -#define EP_CONTROL 0 -#define EP_STATUS 1 -#define EP_DATA_OUT 2 -#define EP_DATA_IN 3 - -struct ds_device -{ - struct usb_device *udev; - struct usb_interface *intf; - - int ep[NUM_EP]; - - atomic_t refcnt; -}; - -struct ds_status -{ - u8 enable; - u8 speed; - u8 pullup_dur; - u8 ppuls_dur; - u8 pulldown_slew; - u8 write1_time; - u8 write0_time; - u8 reserved0; - u8 status; - u8 command0; - u8 command1; - u8 command_buffer_status; - u8 data_out_buffer_status; - u8 data_in_buffer_status; - u8 reserved1; - u8 reserved2; - -}; - -int ds_touch_bit(struct ds_device *, u8, u8 *); -int ds_read_byte(struct ds_device *, u8 *); -int ds_read_bit(struct ds_device *, u8 *); -int ds_write_byte(struct ds_device *, u8); -int ds_write_bit(struct ds_device *, u8); -int ds_reset(struct ds_device *, struct ds_status *); -struct ds_device * ds_get_device(void); -void ds_put_device(struct ds_device *); -int ds_write_block(struct ds_device *, u8 *, int); -int ds_read_block(struct ds_device *, u8 *, int); - -#endif /* __DSCORE_H */ - |
