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RT-AC66 3.0.0.4.374.130 core
[tomato.git] / release / src-rt-6.x / linux / linux-2.6 / drivers / usb / atm / cxacru.c
blob84d0662d2f290cea77cdfb4cda842598c27581a4
1 /******************************************************************************
2 * cxacru.c - driver for USB ADSL modems based on
3 * Conexant AccessRunner chipset
4 *
5 * Copyright (C) 2004 David Woodhouse, Duncan Sands, Roman Kagan
6 * Copyright (C) 2005 Duncan Sands, Roman Kagan (rkagan % mail ! ru)
7 * Copyright (C) 2007 Simon Arlott
8 *
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the Free
11 * Software Foundation; either version 2 of the License, or (at your option)
12 * any later version.
13 *
14 * This program is distributed in the hope that it will be useful, but WITHOUT
15 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
17 * more details.
18 *
19 * You should have received a copy of the GNU General Public License along with
20 * this program; if not, write to the Free Software Foundation, Inc., 59
21 * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22 *
23 ******************************************************************************/
24
25 /*
26 * Credit is due for Josep Comas, who created the original patch to speedtch.c
27 * to support the different padding used by the AccessRunner (now generalized
28 * into usbatm), and the userspace firmware loading utility.
29 */
30
31 #include <linux/module.h>
32 #include <linux/moduleparam.h>
33 #include <linux/kernel.h>
34 #include <linux/timer.h>
35 #include <linux/errno.h>
36 #include <linux/slab.h>
37 #include <linux/init.h>
38 #include <linux/device.h>
39 #include <linux/firmware.h>
40 #include <linux/mutex.h>
41 #include <asm/unaligned.h>
42
43 #include "usbatm.h"
44
45 #define DRIVER_AUTHOR "Roman Kagan, David Woodhouse, Duncan Sands, Simon Arlott"
46 #define DRIVER_VERSION "0.3"
47 #define DRIVER_DESC "Conexant AccessRunner ADSL USB modem driver"
48
49 static const char cxacru_driver_name[] = "cxacru";
50
51 #define CXACRU_EP_CMD 0x01 /* Bulk/interrupt in/out */
52 #define CXACRU_EP_DATA 0x02 /* Bulk in/out */
53
54 #define CMD_PACKET_SIZE 64 /* Should be maxpacket(ep)? */
55
56 /* Addresses */
57 #define PLLFCLK_ADDR 0x00350068
58 #define PLLBCLK_ADDR 0x0035006c
59 #define SDRAMEN_ADDR 0x00350010
60 #define FW_ADDR 0x00801000
61 #define BR_ADDR 0x00180600
62 #define SIG_ADDR 0x00180500
63 #define BR_STACK_ADDR 0x00187f10
64
65 /* Values */
66 #define SDRAM_ENA 0x1
67
68 #define CMD_TIMEOUT 2000 /* msecs */
69 #define POLL_INTERVAL 1 /* secs */
70
71 /* commands for interaction with the modem through the control channel before
72 * firmware is loaded */
73 enum cxacru_fw_request {
74 FW_CMD_ERR,
75 FW_GET_VER,
76 FW_READ_MEM,
77 FW_WRITE_MEM,
78 FW_RMW_MEM,
79 FW_CHECKSUM_MEM,
80 FW_GOTO_MEM,
81 };
82
83 /* commands for interaction with the modem through the control channel once
84 * firmware is loaded */
85 enum cxacru_cm_request {
86 CM_REQUEST_UNDEFINED = 0x80,
87 CM_REQUEST_TEST,
88 CM_REQUEST_CHIP_GET_MAC_ADDRESS,
89 CM_REQUEST_CHIP_GET_DP_VERSIONS,
90 CM_REQUEST_CHIP_ADSL_LINE_START,
91 CM_REQUEST_CHIP_ADSL_LINE_STOP,
92 CM_REQUEST_CHIP_ADSL_LINE_GET_STATUS,
93 CM_REQUEST_CHIP_ADSL_LINE_GET_SPEED,
94 CM_REQUEST_CARD_INFO_GET,
95 CM_REQUEST_CARD_DATA_GET,
96 CM_REQUEST_CARD_DATA_SET,
97 CM_REQUEST_COMMAND_HW_IO,
98 CM_REQUEST_INTERFACE_HW_IO,
99 CM_REQUEST_CARD_SERIAL_DATA_PATH_GET,
100 CM_REQUEST_CARD_SERIAL_DATA_PATH_SET,
101 CM_REQUEST_CARD_CONTROLLER_VERSION_GET,
102 CM_REQUEST_CARD_GET_STATUS,
103 CM_REQUEST_CARD_GET_MAC_ADDRESS,
104 CM_REQUEST_CARD_GET_DATA_LINK_STATUS,
105 CM_REQUEST_MAX,
106 };
107
108 /* reply codes to the commands above */
109 enum cxacru_cm_status {
110 CM_STATUS_UNDEFINED,
111 CM_STATUS_SUCCESS,
112 CM_STATUS_ERROR,
113 CM_STATUS_UNSUPPORTED,
114 CM_STATUS_UNIMPLEMENTED,
115 CM_STATUS_PARAMETER_ERROR,
116 CM_STATUS_DBG_LOOPBACK,
117 CM_STATUS_MAX,
118 };
119
120 /* indices into CARD_INFO_GET return array */
121 enum cxacru_info_idx {
122 CXINF_DOWNSTREAM_RATE,
123 CXINF_UPSTREAM_RATE,
124 CXINF_LINK_STATUS,
125 CXINF_LINE_STATUS,
126 CXINF_MAC_ADDRESS_HIGH,
127 CXINF_MAC_ADDRESS_LOW,
128 CXINF_UPSTREAM_SNR_MARGIN,
129 CXINF_DOWNSTREAM_SNR_MARGIN,
130 CXINF_UPSTREAM_ATTENUATION,
131 CXINF_DOWNSTREAM_ATTENUATION,
132 CXINF_TRANSMITTER_POWER,
133 CXINF_UPSTREAM_BITS_PER_FRAME,
134 CXINF_DOWNSTREAM_BITS_PER_FRAME,
135 CXINF_STARTUP_ATTEMPTS,
136 CXINF_UPSTREAM_CRC_ERRORS,
137 CXINF_DOWNSTREAM_CRC_ERRORS,
138 CXINF_UPSTREAM_FEC_ERRORS,
139 CXINF_DOWNSTREAM_FEC_ERRORS,
140 CXINF_UPSTREAM_HEC_ERRORS,
141 CXINF_DOWNSTREAM_HEC_ERRORS,
142 CXINF_LINE_STARTABLE,
143 CXINF_MODULATION,
144 CXINF_ADSL_HEADEND,
145 CXINF_ADSL_HEADEND_ENVIRONMENT,
146 CXINF_CONTROLLER_VERSION,
147 /* dunno what the missing two mean */
148 CXINF_MAX = 0x1c,
149 };
150
151 enum cxacru_poll_state {
152 CXPOLL_STOPPING,
153 CXPOLL_STOPPED,
154 CXPOLL_POLLING,
155 CXPOLL_SHUTDOWN
156 };
157
158 struct cxacru_modem_type {
159 u32 pll_f_clk;
160 u32 pll_b_clk;
161 int boot_rom_patch;
162 };
163
164 struct cxacru_data {
165 struct usbatm_data *usbatm;
166
167 const struct cxacru_modem_type *modem_type;
168
169 int line_status;
170 struct mutex adsl_state_serialize;
171 int adsl_status;
172 struct delayed_work poll_work;
173 u32 card_info[CXINF_MAX];
174 struct mutex poll_state_serialize;
175 enum cxacru_poll_state poll_state;
176
177 /* contol handles */
178 struct mutex cm_serialize;
179 u8 *rcv_buf;
180 u8 *snd_buf;
181 struct urb *rcv_urb;
182 struct urb *snd_urb;
183 struct completion rcv_done;
184 struct completion snd_done;
185 };
186
187 static int cxacru_cm(struct cxacru_data *instance, enum cxacru_cm_request cm,
188 u8 *wdata, int wsize, u8 *rdata, int rsize);
189 static void cxacru_poll_status(struct work_struct *work);
190
191 /* Card info exported through sysfs */
192 #define CXACRU__ATTR_INIT(_name) \
193 static DEVICE_ATTR(_name, S_IRUGO, cxacru_sysfs_show_##_name, NULL)
194
195 #define CXACRU_CMD_INIT(_name) \
196 static DEVICE_ATTR(_name, S_IWUSR | S_IRUGO, \
197 cxacru_sysfs_show_##_name, cxacru_sysfs_store_##_name)
198
199 #define CXACRU_ATTR_INIT(_value, _type, _name) \
200 static ssize_t cxacru_sysfs_show_##_name(struct device *dev, \
201 struct device_attribute *attr, char *buf) \
202 { \
203 struct usb_interface *intf = to_usb_interface(dev); \
204 struct usbatm_data *usbatm_instance = usb_get_intfdata(intf); \
205 struct cxacru_data *instance = usbatm_instance->driver_data; \
206 return cxacru_sysfs_showattr_##_type(instance->card_info[_value], buf); \
207 } \
208 CXACRU__ATTR_INIT(_name)
209
210 #define CXACRU_ATTR_CREATE(_v, _t, _name) CXACRU_DEVICE_CREATE_FILE(_name)
211 #define CXACRU_CMD_CREATE(_name) CXACRU_DEVICE_CREATE_FILE(_name)
212 #define CXACRU__ATTR_CREATE(_name) CXACRU_DEVICE_CREATE_FILE(_name)
213
214 #define CXACRU_ATTR_REMOVE(_v, _t, _name) CXACRU_DEVICE_REMOVE_FILE(_name)
215 #define CXACRU_CMD_REMOVE(_name) CXACRU_DEVICE_REMOVE_FILE(_name)
216 #define CXACRU__ATTR_REMOVE(_name) CXACRU_DEVICE_REMOVE_FILE(_name)
217
218 static ssize_t cxacru_sysfs_showattr_u32(u32 value, char *buf)
219 {
220 return snprintf(buf, PAGE_SIZE, "%u\n", value);
221 }
222
223 static ssize_t cxacru_sysfs_showattr_s8(s8 value, char *buf)
224 {
225 return snprintf(buf, PAGE_SIZE, "%d\n", value);
226 }
227
228 static ssize_t cxacru_sysfs_showattr_dB(s16 value, char *buf)
229 {
230 return snprintf(buf, PAGE_SIZE, "%d.%02u\n",
231 value / 100, abs(value) % 100);
232 }
233
234 static ssize_t cxacru_sysfs_showattr_bool(u32 value, char *buf)
235 {
236 static char *str[] = { "no", "yes" };
237 if (unlikely(value >= ARRAY_SIZE(str)))
238 return snprintf(buf, PAGE_SIZE, "%u\n", value);
239 return snprintf(buf, PAGE_SIZE, "%s\n", str[value]);
240 }
241
242 static ssize_t cxacru_sysfs_showattr_LINK(u32 value, char *buf)
243 {
244 static char *str[] = { NULL, "not connected", "connected", "lost" };
245 if (unlikely(value >= ARRAY_SIZE(str) || str[value] == NULL))
246 return snprintf(buf, PAGE_SIZE, "%u\n", value);
247 return snprintf(buf, PAGE_SIZE, "%s\n", str[value]);
248 }
249
250 static ssize_t cxacru_sysfs_showattr_LINE(u32 value, char *buf)
251 {
252 static char *str[] = { "down", "attempting to activate",
253 "training", "channel analysis", "exchange", "up",
254 "waiting", "initialising"
255 };
256 if (unlikely(value >= ARRAY_SIZE(str)))
257 return snprintf(buf, PAGE_SIZE, "%u\n", value);
258 return snprintf(buf, PAGE_SIZE, "%s\n", str[value]);
259 }
260
261 static ssize_t cxacru_sysfs_showattr_MODU(u32 value, char *buf)
262 {
263 static char *str[] = {
264 NULL,
265 "ANSI T1.413",
266 "ITU-T G.992.1 (G.DMT)",
267 "ITU-T G.992.2 (G.LITE)"
268 };
269 if (unlikely(value >= ARRAY_SIZE(str) || str[value] == NULL))
270 return snprintf(buf, PAGE_SIZE, "%u\n", value);
271 return snprintf(buf, PAGE_SIZE, "%s\n", str[value]);
272 }
273
274 /*
275 * This could use MAC_ADDRESS_HIGH and MAC_ADDRESS_LOW, but since
276 * this data is already in atm_dev there's no point.
277 *
278 * MAC_ADDRESS_HIGH = 0x????5544
279 * MAC_ADDRESS_LOW = 0x33221100
280 * Where 00-55 are bytes 0-5 of the MAC.
281 */
282 static ssize_t cxacru_sysfs_show_mac_address(struct device *dev,
283 struct device_attribute *attr, char *buf)
284 {
285 struct usb_interface *intf = to_usb_interface(dev);
286 struct usbatm_data *usbatm_instance = usb_get_intfdata(intf);
287 struct atm_dev *atm_dev = usbatm_instance->atm_dev;
288
289 return snprintf(buf, PAGE_SIZE, "%02x:%02x:%02x:%02x:%02x:%02x\n",
290 atm_dev->esi[0], atm_dev->esi[1], atm_dev->esi[2],
291 atm_dev->esi[3], atm_dev->esi[4], atm_dev->esi[5]);
292 }
293
294 static ssize_t cxacru_sysfs_show_adsl_state(struct device *dev,
295 struct device_attribute *attr, char *buf)
296 {
297 struct usb_interface *intf = to_usb_interface(dev);
298 struct usbatm_data *usbatm_instance = usb_get_intfdata(intf);
299 struct cxacru_data *instance = usbatm_instance->driver_data;
300 u32 value = instance->card_info[CXINF_LINE_STARTABLE];
301
302 static char *str[] = { "running", "stopped" };
303 if (unlikely(value >= ARRAY_SIZE(str)))
304 return snprintf(buf, PAGE_SIZE, "%u\n", value);
305 return snprintf(buf, PAGE_SIZE, "%s\n", str[value]);
306 }
307
308 static ssize_t cxacru_sysfs_store_adsl_state(struct device *dev,
309 struct device_attribute *attr, const char *buf, size_t count)
310 {
311 struct usb_interface *intf = to_usb_interface(dev);
312 struct usbatm_data *usbatm_instance = usb_get_intfdata(intf);
313 struct cxacru_data *instance = usbatm_instance->driver_data;
314 int ret;
315 int poll = -1;
316 char str_cmd[8];
317 int len = strlen(buf);
318
319 if (!capable(CAP_NET_ADMIN))
320 return -EACCES;
321
322 ret = sscanf(buf, "%7s", str_cmd);
323 if (ret != 1)
324 return -EINVAL;
325 ret = 0;
326
327 if (mutex_lock_interruptible(&instance->adsl_state_serialize))
328 return -ERESTARTSYS;
329
330 if (!strcmp(str_cmd, "stop") || !strcmp(str_cmd, "restart")) {
331 ret = cxacru_cm(instance, CM_REQUEST_CHIP_ADSL_LINE_STOP, NULL, 0, NULL, 0);
332 if (ret < 0) {
333 atm_err(usbatm_instance, "change adsl state:"
334 " CHIP_ADSL_LINE_STOP returned %d\n", ret);
335
336 ret = -EIO;
337 } else {
338 ret = len;
339 poll = CXPOLL_STOPPED;
340 }
341 }
342
343 /* Line status is only updated every second
344 * and the device appears to only react to
345 * START/STOP every second too. Wait 1.5s to
346 * be sure that restart will have an effect. */
347 if (!strcmp(str_cmd, "restart"))
348 msleep(1500);
349
350 if (!strcmp(str_cmd, "start") || !strcmp(str_cmd, "restart")) {
351 ret = cxacru_cm(instance, CM_REQUEST_CHIP_ADSL_LINE_START, NULL, 0, NULL, 0);
352 if (ret < 0) {
353 atm_err(usbatm_instance, "change adsl state:"
354 " CHIP_ADSL_LINE_START returned %d\n", ret);
355
356 ret = -EIO;
357 } else {
358 ret = len;
359 poll = CXPOLL_POLLING;
360 }
361 }
362
363 if (!strcmp(str_cmd, "poll")) {
364 ret = len;
365 poll = CXPOLL_POLLING;
366 }
367
368 if (ret == 0) {
369 ret = -EINVAL;
370 poll = -1;
371 }
372
373 if (poll == CXPOLL_POLLING) {
374 mutex_lock(&instance->poll_state_serialize);
375 switch (instance->poll_state) {
376 case CXPOLL_STOPPED:
377 /* start polling */
378 instance->poll_state = CXPOLL_POLLING;
379 break;
380
381 case CXPOLL_STOPPING:
382 /* abort stop request */
383 instance->poll_state = CXPOLL_POLLING;
384 case CXPOLL_POLLING:
385 case CXPOLL_SHUTDOWN:
386 /* don't start polling */
387 poll = -1;
388 }
389 mutex_unlock(&instance->poll_state_serialize);
390 } else if (poll == CXPOLL_STOPPED) {
391 mutex_lock(&instance->poll_state_serialize);
392 /* request stop */
393 if (instance->poll_state == CXPOLL_POLLING)
394 instance->poll_state = CXPOLL_STOPPING;
395 mutex_unlock(&instance->poll_state_serialize);
396 }
397
398 mutex_unlock(&instance->adsl_state_serialize);
399
400 if (poll == CXPOLL_POLLING)
401 cxacru_poll_status(&instance->poll_work.work);
402
403 return ret;
404 }
405
406 /*
407 * All device attributes are included in CXACRU_ALL_FILES
408 * so that the same list can be used multiple times:
409 * INIT (define the device attributes)
410 * CREATE (create all the device files)
411 * REMOVE (remove all the device files)
412 *
413 * With the last two being defined as needed in the functions
414 * they are used in before calling CXACRU_ALL_FILES()
415 */
416 #define CXACRU_ALL_FILES(_action) \
417 CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_RATE, u32, downstream_rate); \
418 CXACRU_ATTR_##_action(CXINF_UPSTREAM_RATE, u32, upstream_rate); \
419 CXACRU_ATTR_##_action(CXINF_LINK_STATUS, LINK, link_status); \
420 CXACRU_ATTR_##_action(CXINF_LINE_STATUS, LINE, line_status); \
421 CXACRU__ATTR_##_action( mac_address); \
422 CXACRU_ATTR_##_action(CXINF_UPSTREAM_SNR_MARGIN, dB, upstream_snr_margin); \
423 CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_SNR_MARGIN, dB, downstream_snr_margin); \
424 CXACRU_ATTR_##_action(CXINF_UPSTREAM_ATTENUATION, dB, upstream_attenuation); \
425 CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_ATTENUATION, dB, downstream_attenuation); \
426 CXACRU_ATTR_##_action(CXINF_TRANSMITTER_POWER, s8, transmitter_power); \
427 CXACRU_ATTR_##_action(CXINF_UPSTREAM_BITS_PER_FRAME, u32, upstream_bits_per_frame); \
428 CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_BITS_PER_FRAME, u32, downstream_bits_per_frame); \
429 CXACRU_ATTR_##_action(CXINF_STARTUP_ATTEMPTS, u32, startup_attempts); \
430 CXACRU_ATTR_##_action(CXINF_UPSTREAM_CRC_ERRORS, u32, upstream_crc_errors); \
431 CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_CRC_ERRORS, u32, downstream_crc_errors); \
432 CXACRU_ATTR_##_action(CXINF_UPSTREAM_FEC_ERRORS, u32, upstream_fec_errors); \
433 CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_FEC_ERRORS, u32, downstream_fec_errors); \
434 CXACRU_ATTR_##_action(CXINF_UPSTREAM_HEC_ERRORS, u32, upstream_hec_errors); \
435 CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_HEC_ERRORS, u32, downstream_hec_errors); \
436 CXACRU_ATTR_##_action(CXINF_LINE_STARTABLE, bool, line_startable); \
437 CXACRU_ATTR_##_action(CXINF_MODULATION, MODU, modulation); \
438 CXACRU_ATTR_##_action(CXINF_ADSL_HEADEND, u32, adsl_headend); \
439 CXACRU_ATTR_##_action(CXINF_ADSL_HEADEND_ENVIRONMENT, u32, adsl_headend_environment); \
440 CXACRU_ATTR_##_action(CXINF_CONTROLLER_VERSION, u32, adsl_controller_version); \
441 CXACRU_CMD_##_action( adsl_state);
442
443 CXACRU_ALL_FILES(INIT);
444
445 /* the following three functions are stolen from drivers/usb/core/message.c */
446 static void cxacru_blocking_completion(struct urb *urb)
447 {
448 complete((struct completion *)urb->context);
449 }
450
451 static void cxacru_timeout_kill(unsigned long data)
452 {
453 usb_unlink_urb((struct urb *) data);
454 }
455
456 static int cxacru_start_wait_urb(struct urb *urb, struct completion *done,
457 int* actual_length)
458 {
459 struct timer_list timer;
460
461 init_timer(&timer);
462 timer.expires = jiffies + msecs_to_jiffies(CMD_TIMEOUT);
463 timer.data = (unsigned long) urb;
464 timer.function = cxacru_timeout_kill;
465 add_timer(&timer);
466 wait_for_completion(done);
467 del_timer_sync(&timer);
468
469 if (actual_length)
470 *actual_length = urb->actual_length;
471 return urb->status; /* must read status after completion */
472 }
473
474 static int cxacru_cm(struct cxacru_data *instance, enum cxacru_cm_request cm,
475 u8 *wdata, int wsize, u8 *rdata, int rsize)
476 {
477 int ret, actlen;
478 int offb, offd;
479 const int stride = CMD_PACKET_SIZE - 4;
480 u8 *wbuf = instance->snd_buf;
481 u8 *rbuf = instance->rcv_buf;
482 int wbuflen = ((wsize - 1) / stride + 1) * CMD_PACKET_SIZE;
483 int rbuflen = ((rsize - 1) / stride + 1) * CMD_PACKET_SIZE;
484
485 if (wbuflen > PAGE_SIZE || rbuflen > PAGE_SIZE) {
486 dbg("too big transfer requested");
487 ret = -ENOMEM;
488 goto fail;
489 }
490
491 mutex_lock(&instance->cm_serialize);
492
493 /* submit reading urb before the writing one */
494 init_completion(&instance->rcv_done);
495 ret = usb_submit_urb(instance->rcv_urb, GFP_KERNEL);
496 if (ret < 0) {
497 dbg("submitting read urb for cm %#x failed", cm);
498 ret = ret;
499 goto fail;
500 }
501
502 memset(wbuf, 0, wbuflen);
503 /* handle wsize == 0 */
504 wbuf[0] = cm;
505 for (offb = offd = 0; offd < wsize; offd += stride, offb += CMD_PACKET_SIZE) {
506 wbuf[offb] = cm;
507 memcpy(wbuf + offb + 4, wdata + offd, min_t(int, stride, wsize - offd));
508 }
509
510 instance->snd_urb->transfer_buffer_length = wbuflen;
511 init_completion(&instance->snd_done);
512 ret = usb_submit_urb(instance->snd_urb, GFP_KERNEL);
513 if (ret < 0) {
514 dbg("submitting write urb for cm %#x failed", cm);
515 ret = ret;
516 goto fail;
517 }
518
519 ret = cxacru_start_wait_urb(instance->snd_urb, &instance->snd_done, NULL);
520 if (ret < 0) {
521 dbg("sending cm %#x failed", cm);
522 ret = ret;
523 goto fail;
524 }
525
526 ret = cxacru_start_wait_urb(instance->rcv_urb, &instance->rcv_done, &actlen);
527 if (ret < 0) {
528 dbg("receiving cm %#x failed", cm);
529 ret = ret;
530 goto fail;
531 }
532 if (actlen % CMD_PACKET_SIZE || !actlen) {
533 dbg("response is not a positive multiple of %d: %#x",
534 CMD_PACKET_SIZE, actlen);
535 ret = -EIO;
536 goto fail;
537 }
538
539 /* check the return status and copy the data to the output buffer, if needed */
540 for (offb = offd = 0; offd < rsize && offb < actlen; offb += CMD_PACKET_SIZE) {
541 if (rbuf[offb] != cm) {
542 dbg("wrong cm %#x in response", rbuf[offb]);
543 ret = -EIO;
544 goto fail;
545 }
546 if (rbuf[offb + 1] != CM_STATUS_SUCCESS) {
547 dbg("response failed: %#x", rbuf[offb + 1]);
548 ret = -EIO;
549 goto fail;
550 }
551 if (offd >= rsize)
552 break;
553 memcpy(rdata + offd, rbuf + offb + 4, min_t(int, stride, rsize - offd));
554 offd += stride;
555 }
556
557 ret = offd;
558 dbg("cm %#x", cm);
559 fail:
560 mutex_unlock(&instance->cm_serialize);
561 return ret;
562 }
563
564 static int cxacru_cm_get_array(struct cxacru_data *instance, enum cxacru_cm_request cm,
565 u32 *data, int size)
566 {
567 int ret, len;
568 __le32 *buf;
569 int offb, offd;
570 const int stride = CMD_PACKET_SIZE / (4 * 2) - 1;
571 int buflen = ((size - 1) / stride + 1 + size * 2) * 4;
572
573 buf = kmalloc(buflen, GFP_KERNEL);
574 if (!buf)
575 return -ENOMEM;
576
577 ret = cxacru_cm(instance, cm, NULL, 0, (u8 *) buf, buflen);
578 if (ret < 0)
579 goto cleanup;
580
581 /* len > 0 && len % 4 == 0 guaranteed by cxacru_cm() */
582 len = ret / 4;
583 for (offb = 0; offb < len; ) {
584 int l = le32_to_cpu(buf[offb++]);
585 if (l > stride || l > (len - offb) / 2) {
586 dbg("wrong data length %#x in response", l);
587 ret = -EIO;
588 goto cleanup;
589 }
590 while (l--) {
591 offd = le32_to_cpu(buf[offb++]);
592 if (offd >= size) {
593 dbg("wrong index %#x in response", offd);
594 ret = -EIO;
595 goto cleanup;
596 }
597 data[offd] = le32_to_cpu(buf[offb++]);
598 }
599 }
600
601 ret = 0;
602
603 cleanup:
604 kfree(buf);
605 return ret;
606 }
607
608 static int cxacru_card_status(struct cxacru_data *instance)
609 {
610 int ret = cxacru_cm(instance, CM_REQUEST_CARD_GET_STATUS, NULL, 0, NULL, 0);
611 if (ret < 0) { /* firmware not loaded */
612 dbg("cxacru_adsl_start: CARD_GET_STATUS returned %d", ret);
613 return ret;
614 }
615 return 0;
616 }
617
618 static void cxacru_remove_device_files(struct usbatm_data *usbatm_instance,
619 struct atm_dev *atm_dev)
620 {
621 struct usb_interface *intf = usbatm_instance->usb_intf;
622
623 #define CXACRU_DEVICE_REMOVE_FILE(_name) \
624 device_remove_file(&intf->dev, &dev_attr_##_name);
625 CXACRU_ALL_FILES(REMOVE);
626 #undef CXACRU_DEVICE_REMOVE_FILE
627 }
628
629 static int cxacru_atm_start(struct usbatm_data *usbatm_instance,
630 struct atm_dev *atm_dev)
631 {
632 struct cxacru_data *instance = usbatm_instance->driver_data;
633 struct usb_interface *intf = usbatm_instance->usb_intf;
634 /*
635 struct atm_dev *atm_dev = usbatm_instance->atm_dev;
636 */
637 int ret;
638 int start_polling = 1;
639
640 dbg("cxacru_atm_start");
641
642 /* Read MAC address */
643 ret = cxacru_cm(instance, CM_REQUEST_CARD_GET_MAC_ADDRESS, NULL, 0,
644 atm_dev->esi, sizeof(atm_dev->esi));
645 if (ret < 0) {
646 atm_err(usbatm_instance, "cxacru_atm_start: CARD_GET_MAC_ADDRESS returned %d\n", ret);
647 return ret;
648 }
649
650 #define CXACRU_DEVICE_CREATE_FILE(_name) \
651 ret = device_create_file(&intf->dev, &dev_attr_##_name); \
652 if (unlikely(ret)) \
653 goto fail_sysfs;
654 CXACRU_ALL_FILES(CREATE);
655 #undef CXACRU_DEVICE_CREATE_FILE
656
657 /* start ADSL */
658 mutex_lock(&instance->adsl_state_serialize);
659 ret = cxacru_cm(instance, CM_REQUEST_CHIP_ADSL_LINE_START, NULL, 0, NULL, 0);
660 if (ret < 0)
661 atm_err(usbatm_instance, "cxacru_atm_start: CHIP_ADSL_LINE_START returned %d\n", ret);
662
663 /* Start status polling */
664 mutex_lock(&instance->poll_state_serialize);
665 switch (instance->poll_state) {
666 case CXPOLL_STOPPED:
667 /* start polling */
668 instance->poll_state = CXPOLL_POLLING;
669 break;
670
671 case CXPOLL_STOPPING:
672 /* abort stop request */
673 instance->poll_state = CXPOLL_POLLING;
674 case CXPOLL_POLLING:
675 case CXPOLL_SHUTDOWN:
676 /* don't start polling */
677 start_polling = 0;
678 }
679 mutex_unlock(&instance->poll_state_serialize);
680 mutex_unlock(&instance->adsl_state_serialize);
681
682 if (start_polling)
683 cxacru_poll_status(&instance->poll_work.work);
684 return 0;
685
686 fail_sysfs:
687 usb_err(usbatm_instance, "cxacru_atm_start: device_create_file failed (%d)\n", ret);
688 cxacru_remove_device_files(usbatm_instance, atm_dev);
689 return ret;
690 }
691
692 static void cxacru_poll_status(struct work_struct *work)
693 {
694 struct cxacru_data *instance =
695 container_of(work, struct cxacru_data, poll_work.work);
696 u32 buf[CXINF_MAX] = {};
697 struct usbatm_data *usbatm = instance->usbatm;
698 struct atm_dev *atm_dev = usbatm->atm_dev;
699 int keep_polling = 1;
700 int ret;
701
702 ret = cxacru_cm_get_array(instance, CM_REQUEST_CARD_INFO_GET, buf, CXINF_MAX);
703 if (ret < 0) {
704 if (ret != -ESHUTDOWN)
705 atm_warn(usbatm, "poll status: error %d\n", ret);
706
707 mutex_lock(&instance->poll_state_serialize);
708 if (instance->poll_state != CXPOLL_SHUTDOWN) {
709 instance->poll_state = CXPOLL_STOPPED;
710
711 if (ret != -ESHUTDOWN)
712 atm_warn(usbatm, "polling disabled, set adsl_state"
713 " to 'start' or 'poll' to resume\n");
714 }
715 mutex_unlock(&instance->poll_state_serialize);
716 goto reschedule;
717 }
718
719 memcpy(instance->card_info, buf, sizeof(instance->card_info));
720
721 if (instance->adsl_status != buf[CXINF_LINE_STARTABLE]) {
722 instance->adsl_status = buf[CXINF_LINE_STARTABLE];
723
724 switch (instance->adsl_status) {
725 case 0:
726 atm_printk(KERN_INFO, usbatm, "ADSL state: running\n");
727 break;
728
729 case 1:
730 atm_printk(KERN_INFO, usbatm, "ADSL state: stopped\n");
731 break;
732
733 default:
734 atm_printk(KERN_INFO, usbatm, "Unknown adsl status %02x\n", instance->adsl_status);
735 break;
736 }
737 }
738
739 if (instance->line_status == buf[CXINF_LINE_STATUS])
740 goto reschedule;
741
742 instance->line_status = buf[CXINF_LINE_STATUS];
743 switch (instance->line_status) {
744 case 0:
745 atm_dev->signal = ATM_PHY_SIG_LOST;
746 atm_info(usbatm, "ADSL line: down\n");
747 break;
748
749 case 1:
750 atm_dev->signal = ATM_PHY_SIG_LOST;
751 atm_info(usbatm, "ADSL line: attempting to activate\n");
752 break;
753
754 case 2:
755 atm_dev->signal = ATM_PHY_SIG_LOST;
756 atm_info(usbatm, "ADSL line: training\n");
757 break;
758
759 case 3:
760 atm_dev->signal = ATM_PHY_SIG_LOST;
761 atm_info(usbatm, "ADSL line: channel analysis\n");
762 break;
763
764 case 4:
765 atm_dev->signal = ATM_PHY_SIG_LOST;
766 atm_info(usbatm, "ADSL line: exchange\n");
767 break;
768
769 case 5:
770 atm_dev->link_rate = buf[CXINF_DOWNSTREAM_RATE] * 1000 / 424;
771 atm_dev->signal = ATM_PHY_SIG_FOUND;
772
773 atm_info(usbatm, "ADSL line: up (%d kb/s down | %d kb/s up)\n",
774 buf[CXINF_DOWNSTREAM_RATE], buf[CXINF_UPSTREAM_RATE]);
775 break;
776
777 case 6:
778 atm_dev->signal = ATM_PHY_SIG_LOST;
779 atm_info(usbatm, "ADSL line: waiting\n");
780 break;
781
782 case 7:
783 atm_dev->signal = ATM_PHY_SIG_LOST;
784 atm_info(usbatm, "ADSL line: initializing\n");
785 break;
786
787 default:
788 atm_dev->signal = ATM_PHY_SIG_UNKNOWN;
789 atm_info(usbatm, "Unknown line state %02x\n", instance->line_status);
790 break;
791 }
792 reschedule:
793
794 mutex_lock(&instance->poll_state_serialize);
795 if (instance->poll_state == CXPOLL_STOPPING &&
796 instance->adsl_status == 1 && /* stopped */
797 instance->line_status == 0) /* down */
798 instance->poll_state = CXPOLL_STOPPED;
799
800 if (instance->poll_state == CXPOLL_STOPPED)
801 keep_polling = 0;
802 mutex_unlock(&instance->poll_state_serialize);
803
804 if (keep_polling)
805 schedule_delayed_work(&instance->poll_work,
806 round_jiffies_relative(POLL_INTERVAL*HZ));
807 }
808
809 static int cxacru_fw(struct usb_device *usb_dev, enum cxacru_fw_request fw,
810 u8 code1, u8 code2, u32 addr, u8 *data, int size)
811 {
812 int ret;
813 u8 *buf;
814 int offd, offb;
815 const int stride = CMD_PACKET_SIZE - 8;
816
817 buf = (u8 *) __get_free_page(GFP_KERNEL);
818 if (!buf)
819 return -ENOMEM;
820
821 offb = offd = 0;
822 do {
823 int l = min_t(int, stride, size - offd);
824 buf[offb++] = fw;
825 buf[offb++] = l;
826 buf[offb++] = code1;
827 buf[offb++] = code2;
828 put_unaligned(cpu_to_le32(addr), (__le32 *)(buf + offb));
829 offb += 4;
830 addr += l;
831 if(l)
832 memcpy(buf + offb, data + offd, l);
833 if (l < stride)
834 memset(buf + offb + l, 0, stride - l);
835 offb += stride;
836 offd += stride;
837 if ((offb >= PAGE_SIZE) || (offd >= size)) {
838 ret = usb_bulk_msg(usb_dev, usb_sndbulkpipe(usb_dev, CXACRU_EP_CMD),
839 buf, offb, NULL, CMD_TIMEOUT);
840 if (ret < 0) {
841 dbg("sending fw %#x failed", fw);
842 goto cleanup;
843 }
844 offb = 0;
845 }
846 } while(offd < size);
847 dbg("sent fw %#x", fw);
848
849 ret = 0;
850
851 cleanup:
852 free_page((unsigned long) buf);
853 return ret;
854 }
855
856 static void cxacru_upload_firmware(struct cxacru_data *instance,
857 const struct firmware *fw,
858 const struct firmware *bp,
859 const struct firmware *cf)
860 {
861 int ret;
862 int off;
863 struct usbatm_data *usbatm = instance->usbatm;
864 struct usb_device *usb_dev = usbatm->usb_dev;
865 __le16 signature[] = { usb_dev->descriptor.idVendor,
866 usb_dev->descriptor.idProduct };
867 __le32 val;
868
869 dbg("cxacru_upload_firmware");
870
871 /* FirmwarePllFClkValue */
872 val = cpu_to_le32(instance->modem_type->pll_f_clk);
873 ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, PLLFCLK_ADDR, (u8 *) &val, 4);
874 if (ret) {
875 usb_err(usbatm, "FirmwarePllFClkValue failed: %d\n", ret);
876 return;
877 }
878
879 /* FirmwarePllBClkValue */
880 val = cpu_to_le32(instance->modem_type->pll_b_clk);
881 ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, PLLBCLK_ADDR, (u8 *) &val, 4);
882 if (ret) {
883 usb_err(usbatm, "FirmwarePllBClkValue failed: %d\n", ret);
884 return;
885 }
886
887 /* Enable SDRAM */
888 val = cpu_to_le32(SDRAM_ENA);
889 ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, SDRAMEN_ADDR, (u8 *) &val, 4);
890 if (ret) {
891 usb_err(usbatm, "Enable SDRAM failed: %d\n", ret);
892 return;
893 }
894
895 /* Firmware */
896 ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, FW_ADDR, fw->data, fw->size);
897 if (ret) {
898 usb_err(usbatm, "Firmware upload failed: %d\n", ret);
899 return;
900 }
901
902 /* Boot ROM patch */
903 if (instance->modem_type->boot_rom_patch) {
904 ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, BR_ADDR, bp->data, bp->size);
905 if (ret) {
906 usb_err(usbatm, "Boot ROM patching failed: %d\n", ret);
907 return;
908 }
909 }
910
911 /* Signature */
912 ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, SIG_ADDR, (u8 *) signature, 4);
913 if (ret) {
914 usb_err(usbatm, "Signature storing failed: %d\n", ret);
915 return;
916 }
917
918 if (instance->modem_type->boot_rom_patch) {
919 val = cpu_to_le32(BR_ADDR);
920 ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, BR_STACK_ADDR, (u8 *) &val, 4);
921 }
922 else {
923 ret = cxacru_fw(usb_dev, FW_GOTO_MEM, 0x0, 0x0, FW_ADDR, NULL, 0);
924 }
925 if (ret) {
926 usb_err(usbatm, "Passing control to firmware failed: %d\n", ret);
927 return;
928 }
929
930 /* Delay to allow firmware to start up. */
931 msleep_interruptible(1000);
932
933 usb_clear_halt(usb_dev, usb_sndbulkpipe(usb_dev, CXACRU_EP_CMD));
934 usb_clear_halt(usb_dev, usb_rcvbulkpipe(usb_dev, CXACRU_EP_CMD));
935 usb_clear_halt(usb_dev, usb_sndbulkpipe(usb_dev, CXACRU_EP_DATA));
936 usb_clear_halt(usb_dev, usb_rcvbulkpipe(usb_dev, CXACRU_EP_DATA));
937
938 ret = cxacru_cm(instance, CM_REQUEST_CARD_GET_STATUS, NULL, 0, NULL, 0);
939 if (ret < 0) {
940 usb_err(usbatm, "modem failed to initialize: %d\n", ret);
941 return;
942 }
943
944 /* Load config data (le32), doing one packet at a time */
945 if (cf)
946 for (off = 0; off < cf->size / 4; ) {
947 __le32 buf[CMD_PACKET_SIZE / 4 - 1];
948 int i, len = min_t(int, cf->size / 4 - off, CMD_PACKET_SIZE / 4 / 2 - 1);
949 buf[0] = cpu_to_le32(len);
950 for (i = 0; i < len; i++, off++) {
951 buf[i * 2 + 1] = cpu_to_le32(off);
952 memcpy(buf + i * 2 + 2, cf->data + off * 4, 4);
953 }
954 ret = cxacru_cm(instance, CM_REQUEST_CARD_DATA_SET,
955 (u8 *) buf, len, NULL, 0);
956 if (ret < 0) {
957 usb_err(usbatm, "load config data failed: %d\n", ret);
958 return;
959 }
960 }
961
962 msleep_interruptible(4000);
963 }
964
965 static int cxacru_find_firmware(struct cxacru_data *instance,
966 char* phase, const struct firmware **fw_p)
967 {
968 struct usbatm_data *usbatm = instance->usbatm;
969 struct device *dev = &usbatm->usb_intf->dev;
970 char buf[16];
971
972 sprintf(buf, "cxacru-%s.bin", phase);
973 dbg("cxacru_find_firmware: looking for %s", buf);
974
975 if (request_firmware(fw_p, buf, dev)) {
976 usb_dbg(usbatm, "no stage %s firmware found\n", phase);
977 return -ENOENT;
978 }
979
980 usb_info(usbatm, "found firmware %s\n", buf);
981
982 return 0;
983 }
984
985 static int cxacru_heavy_init(struct usbatm_data *usbatm_instance,
986 struct usb_interface *usb_intf)
987 {
988 const struct firmware *fw, *bp, *cf;
989 struct cxacru_data *instance = usbatm_instance->driver_data;
990
991 int ret = cxacru_find_firmware(instance, "fw", &fw);
992 if (ret) {
993 usb_warn(usbatm_instance, "firmware (cxacru-fw.bin) unavailable (system misconfigured?)\n");
994 return ret;
995 }
996
997 if (instance->modem_type->boot_rom_patch) {
998 ret = cxacru_find_firmware(instance, "bp", &bp);
999 if (ret) {
1000 usb_warn(usbatm_instance, "boot ROM patch (cxacru-bp.bin) unavailable (system misconfigured?)\n");
1001 release_firmware(fw);
1002 return ret;
1003 }
1004 }
1005
1006 if (cxacru_find_firmware(instance, "cf", &cf)) /* optional */
1007 cf = NULL;
1008
1009 cxacru_upload_firmware(instance, fw, bp, cf);
1010
1011 if (cf)
1012 release_firmware(cf);
1013 if (instance->modem_type->boot_rom_patch)
1014 release_firmware(bp);
1015 release_firmware(fw);
1016
1017 ret = cxacru_card_status(instance);
1018 if (ret)
1019 dbg("modem initialisation failed");
1020 else
1021 dbg("done setting up the modem");
1022
1023 return ret;
1024 }
1025
1026 static int cxacru_bind(struct usbatm_data *usbatm_instance,
1027 struct usb_interface *intf, const struct usb_device_id *id)
1028 {
1029 struct cxacru_data *instance;
1030 struct usb_device *usb_dev = interface_to_usbdev(intf);
1031 int ret;
1032
1033 /* instance init */
1034 instance = kzalloc(sizeof(*instance), GFP_KERNEL);
1035 if (!instance) {
1036 dbg("cxacru_bind: no memory for instance data");
1037 return -ENOMEM;
1038 }
1039
1040 instance->usbatm = usbatm_instance;
1041 instance->modem_type = (struct cxacru_modem_type *) id->driver_info;
1042 memset(instance->card_info, 0, sizeof(instance->card_info));
1043
1044 mutex_init(&instance->poll_state_serialize);
1045 instance->poll_state = CXPOLL_STOPPED;
1046 instance->line_status = -1;
1047 instance->adsl_status = -1;
1048
1049 mutex_init(&instance->adsl_state_serialize);
1050
1051 instance->rcv_buf = (u8 *) __get_free_page(GFP_KERNEL);
1052 if (!instance->rcv_buf) {
1053 dbg("cxacru_bind: no memory for rcv_buf");
1054 ret = -ENOMEM;
1055 goto fail;
1056 }
1057 instance->snd_buf = (u8 *) __get_free_page(GFP_KERNEL);
1058 if (!instance->snd_buf) {
1059 dbg("cxacru_bind: no memory for snd_buf");
1060 ret = -ENOMEM;
1061 goto fail;
1062 }
1063 instance->rcv_urb = usb_alloc_urb(0, GFP_KERNEL);
1064 if (!instance->rcv_urb) {
1065 dbg("cxacru_bind: no memory for rcv_urb");
1066 ret = -ENOMEM;
1067 goto fail;
1068 }
1069 instance->snd_urb = usb_alloc_urb(0, GFP_KERNEL);
1070 if (!instance->snd_urb) {
1071 dbg("cxacru_bind: no memory for snd_urb");
1072 ret = -ENOMEM;
1073 goto fail;
1074 }
1075
1076 usb_fill_int_urb(instance->rcv_urb,
1077 usb_dev, usb_rcvintpipe(usb_dev, CXACRU_EP_CMD),
1078 instance->rcv_buf, PAGE_SIZE,
1079 cxacru_blocking_completion, &instance->rcv_done, 1);
1080
1081 usb_fill_int_urb(instance->snd_urb,
1082 usb_dev, usb_sndintpipe(usb_dev, CXACRU_EP_CMD),
1083 instance->snd_buf, PAGE_SIZE,
1084 cxacru_blocking_completion, &instance->snd_done, 4);
1085
1086 mutex_init(&instance->cm_serialize);
1087
1088 INIT_DELAYED_WORK(&instance->poll_work, cxacru_poll_status);
1089
1090 usbatm_instance->driver_data = instance;
1091
1092 usbatm_instance->flags = (cxacru_card_status(instance) ? 0 : UDSL_SKIP_HEAVY_INIT);
1093
1094 return 0;
1095
1096 fail:
1097 free_page((unsigned long) instance->snd_buf);
1098 free_page((unsigned long) instance->rcv_buf);
1099 usb_free_urb(instance->snd_urb);
1100 usb_free_urb(instance->rcv_urb);
1101 kfree(instance);
1102
1103 return ret;
1104 }
1105
1106 static void cxacru_unbind(struct usbatm_data *usbatm_instance,
1107 struct usb_interface *intf)
1108 {
1109 struct cxacru_data *instance = usbatm_instance->driver_data;
1110 int is_polling = 1;
1111
1112 dbg("cxacru_unbind entered");
1113
1114 if (!instance) {
1115 dbg("cxacru_unbind: NULL instance!");
1116 return;
1117 }
1118
1119 mutex_lock(&instance->poll_state_serialize);
1120 BUG_ON(instance->poll_state == CXPOLL_SHUTDOWN);
1121
1122 /* ensure that status polling continues unless
1123 * it has already stopped */
1124 if (instance->poll_state == CXPOLL_STOPPED)
1125 is_polling = 0;
1126
1127 /* stop polling from being stopped or started */
1128 instance->poll_state = CXPOLL_SHUTDOWN;
1129 mutex_unlock(&instance->poll_state_serialize);
1130
1131 if (is_polling)
1132 cancel_rearming_delayed_work(&instance->poll_work);
1133
1134 usb_kill_urb(instance->snd_urb);
1135 usb_kill_urb(instance->rcv_urb);
1136 usb_free_urb(instance->snd_urb);
1137 usb_free_urb(instance->rcv_urb);
1138
1139 free_page((unsigned long) instance->snd_buf);
1140 free_page((unsigned long) instance->rcv_buf);
1141
1142 kfree(instance);
1143
1144 usbatm_instance->driver_data = NULL;
1145 }
1146
1147 static const struct cxacru_modem_type cxacru_cafe = {
1148 .pll_f_clk = 0x02d874df,
1149 .pll_b_clk = 0x0196a51a,
1150 .boot_rom_patch = 1,
1151 };
1152
1153 static const struct cxacru_modem_type cxacru_cb00 = {
1154 .pll_f_clk = 0x5,
1155 .pll_b_clk = 0x3,
1156 .boot_rom_patch = 0,
1157 };
1158
1159 static const struct usb_device_id cxacru_usb_ids[] = {
1160 { /* V = Conexant P = ADSL modem (Euphrates project) */
1161 USB_DEVICE(0x0572, 0xcafe), .driver_info = (unsigned long) &cxacru_cafe
1162 },
1163 { /* V = Conexant P = ADSL modem (Hasbani project) */
1164 USB_DEVICE(0x0572, 0xcb00), .driver_info = (unsigned long) &cxacru_cb00
1165 },
1166 { /* V = Conexant P = ADSL modem */
1167 USB_DEVICE(0x0572, 0xcb01), .driver_info = (unsigned long) &cxacru_cb00
1168 },
1169 { /* V = Conexant P = ADSL modem (Well PTI-800) */
1170 USB_DEVICE(0x0572, 0xcb02), .driver_info = (unsigned long) &cxacru_cb00
1171 },
1172 { /* V = Conexant P = ADSL modem */
1173 USB_DEVICE(0x0572, 0xcb06), .driver_info = (unsigned long) &cxacru_cb00
1174 },
1175 { /* V = Conexant P = ADSL modem (ZTE ZXDSL 852) */
1176 USB_DEVICE(0x0572, 0xcb07), .driver_info = (unsigned long) &cxacru_cb00
1177 },
1178 { /* V = Olitec P = ADSL modem version 2 */
1179 USB_DEVICE(0x08e3, 0x0100), .driver_info = (unsigned long) &cxacru_cafe
1180 },
1181 { /* V = Olitec P = ADSL modem version 3 */
1182 USB_DEVICE(0x08e3, 0x0102), .driver_info = (unsigned long) &cxacru_cb00
1183 },
1184 { /* V = Trust/Amigo Technology Co. P = AMX-CA86U */
1185 USB_DEVICE(0x0eb0, 0x3457), .driver_info = (unsigned long) &cxacru_cafe
1186 },
1187 { /* V = Zoom P = 5510 */
1188 USB_DEVICE(0x1803, 0x5510), .driver_info = (unsigned long) &cxacru_cb00
1189 },
1190 { /* V = Draytek P = Vigor 318 */
1191 USB_DEVICE(0x0675, 0x0200), .driver_info = (unsigned long) &cxacru_cb00
1192 },
1193 { /* V = Zyxel P = 630-C1 aka OMNI ADSL USB (Annex A) */
1194 USB_DEVICE(0x0586, 0x330a), .driver_info = (unsigned long) &cxacru_cb00
1195 },
1196 { /* V = Zyxel P = 630-C3 aka OMNI ADSL USB (Annex B) */
1197 USB_DEVICE(0x0586, 0x330b), .driver_info = (unsigned long) &cxacru_cb00
1198 },
1199 { /* V = Aethra P = Starmodem UM1020 */
1200 USB_DEVICE(0x0659, 0x0020), .driver_info = (unsigned long) &cxacru_cb00
1201 },
1202 { /* V = Aztech Systems P = ? AKA Pirelli AUA-010 */
1203 USB_DEVICE(0x0509, 0x0812), .driver_info = (unsigned long) &cxacru_cb00
1204 },
1205 { /* V = Netopia P = Cayman 3341(Annex A)/3351(Annex B) */
1206 USB_DEVICE(0x100d, 0xcb01), .driver_info = (unsigned long) &cxacru_cb00
1207 },
1208 { /* V = Netopia P = Cayman 3342(Annex A)/3352(Annex B) */
1209 USB_DEVICE(0x100d, 0x3342), .driver_info = (unsigned long) &cxacru_cb00
1210 },
1211 {}
1212 };
1213
1214 MODULE_DEVICE_TABLE(usb, cxacru_usb_ids);
1215
1216 static struct usbatm_driver cxacru_driver = {
1217 .driver_name = cxacru_driver_name,
1218 .bind = cxacru_bind,
1219 .heavy_init = cxacru_heavy_init,
1220 .unbind = cxacru_unbind,
1221 .atm_start = cxacru_atm_start,
1222 .atm_stop = cxacru_remove_device_files,
1223 .bulk_in = CXACRU_EP_DATA,
1224 .bulk_out = CXACRU_EP_DATA,
1225 .rx_padding = 3,
1226 .tx_padding = 11,
1227 };
1228
1229 static int cxacru_usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
1230 {
1231 return usbatm_usb_probe(intf, id, &cxacru_driver);
1232 }
1233
1234 static struct usb_driver cxacru_usb_driver = {
1235 .name = cxacru_driver_name,
1236 .probe = cxacru_usb_probe,
1237 .disconnect = usbatm_usb_disconnect,
1238 .id_table = cxacru_usb_ids
1239 };
1240
1241 static int __init cxacru_init(void)
1242 {
1243 return usb_register(&cxacru_usb_driver);
1244 }
1245
1246 static void __exit cxacru_cleanup(void)
1247 {
1248 usb_deregister(&cxacru_usb_driver);
1249 }
1250
1251 module_init(cxacru_init);
1252 module_exit(cxacru_cleanup);
1253
1254 MODULE_AUTHOR(DRIVER_AUTHOR);
1255 MODULE_DESCRIPTION(DRIVER_DESC);
1256 MODULE_LICENSE("GPL");
1257 MODULE_VERSION(DRIVER_VERSION);
Tomato firmware and modifications.