Merge branch 'for-linus' of git://oss.sgi.com:8090/xfs/xfs-2.6
[linux-2.6] / drivers / usb / atm / cxacru.c
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
42 #include "usbatm.h"
43
44 #define DRIVER_AUTHOR   "Roman Kagan, David Woodhouse, Duncan Sands, Simon Arlott"
45 #define DRIVER_VERSION  "0.3"
46 #define DRIVER_DESC     "Conexant AccessRunner ADSL USB modem driver"
47
48 static const char cxacru_driver_name[] = "cxacru";
49
50 #define CXACRU_EP_CMD           0x01    /* Bulk/interrupt in/out */
51 #define CXACRU_EP_DATA          0x02    /* Bulk in/out */
52
53 #define CMD_PACKET_SIZE         64      /* Should be maxpacket(ep)? */
54
55 /* Addresses */
56 #define PLLFCLK_ADDR    0x00350068
57 #define PLLBCLK_ADDR    0x0035006c
58 #define SDRAMEN_ADDR    0x00350010
59 #define FW_ADDR         0x00801000
60 #define BR_ADDR         0x00180600
61 #define SIG_ADDR        0x00180500
62 #define BR_STACK_ADDR   0x00187f10
63
64 /* Values */
65 #define SDRAM_ENA       0x1
66
67 #define CMD_TIMEOUT     2000    /* msecs */
68 #define POLL_INTERVAL   1       /* secs */
69
70 /* commands for interaction with the modem through the control channel before
71  * firmware is loaded  */
72 enum cxacru_fw_request {
73         FW_CMD_ERR,
74         FW_GET_VER,
75         FW_READ_MEM,
76         FW_WRITE_MEM,
77         FW_RMW_MEM,
78         FW_CHECKSUM_MEM,
79         FW_GOTO_MEM,
80 };
81
82 /* commands for interaction with the modem through the control channel once
83  * firmware is loaded  */
84 enum cxacru_cm_request {
85         CM_REQUEST_UNDEFINED = 0x80,
86         CM_REQUEST_TEST,
87         CM_REQUEST_CHIP_GET_MAC_ADDRESS,
88         CM_REQUEST_CHIP_GET_DP_VERSIONS,
89         CM_REQUEST_CHIP_ADSL_LINE_START,
90         CM_REQUEST_CHIP_ADSL_LINE_STOP,
91         CM_REQUEST_CHIP_ADSL_LINE_GET_STATUS,
92         CM_REQUEST_CHIP_ADSL_LINE_GET_SPEED,
93         CM_REQUEST_CARD_INFO_GET,
94         CM_REQUEST_CARD_DATA_GET,
95         CM_REQUEST_CARD_DATA_SET,
96         CM_REQUEST_COMMAND_HW_IO,
97         CM_REQUEST_INTERFACE_HW_IO,
98         CM_REQUEST_CARD_SERIAL_DATA_PATH_GET,
99         CM_REQUEST_CARD_SERIAL_DATA_PATH_SET,
100         CM_REQUEST_CARD_CONTROLLER_VERSION_GET,
101         CM_REQUEST_CARD_GET_STATUS,
102         CM_REQUEST_CARD_GET_MAC_ADDRESS,
103         CM_REQUEST_CARD_GET_DATA_LINK_STATUS,
104         CM_REQUEST_MAX,
105 };
106
107 /* reply codes to the commands above */
108 enum cxacru_cm_status {
109         CM_STATUS_UNDEFINED,
110         CM_STATUS_SUCCESS,
111         CM_STATUS_ERROR,
112         CM_STATUS_UNSUPPORTED,
113         CM_STATUS_UNIMPLEMENTED,
114         CM_STATUS_PARAMETER_ERROR,
115         CM_STATUS_DBG_LOOPBACK,
116         CM_STATUS_MAX,
117 };
118
119 /* indices into CARD_INFO_GET return array */
120 enum cxacru_info_idx {
121         CXINF_DOWNSTREAM_RATE,
122         CXINF_UPSTREAM_RATE,
123         CXINF_LINK_STATUS,
124         CXINF_LINE_STATUS,
125         CXINF_MAC_ADDRESS_HIGH,
126         CXINF_MAC_ADDRESS_LOW,
127         CXINF_UPSTREAM_SNR_MARGIN,
128         CXINF_DOWNSTREAM_SNR_MARGIN,
129         CXINF_UPSTREAM_ATTENUATION,
130         CXINF_DOWNSTREAM_ATTENUATION,
131         CXINF_TRANSMITTER_POWER,
132         CXINF_UPSTREAM_BITS_PER_FRAME,
133         CXINF_DOWNSTREAM_BITS_PER_FRAME,
134         CXINF_STARTUP_ATTEMPTS,
135         CXINF_UPSTREAM_CRC_ERRORS,
136         CXINF_DOWNSTREAM_CRC_ERRORS,
137         CXINF_UPSTREAM_FEC_ERRORS,
138         CXINF_DOWNSTREAM_FEC_ERRORS,
139         CXINF_UPSTREAM_HEC_ERRORS,
140         CXINF_DOWNSTREAM_HEC_ERRORS,
141         CXINF_LINE_STARTABLE,
142         CXINF_MODULATION,
143         CXINF_ADSL_HEADEND,
144         CXINF_ADSL_HEADEND_ENVIRONMENT,
145         CXINF_CONTROLLER_VERSION,
146         /* dunno what the missing two mean */
147         CXINF_MAX = 0x1c,
148 };
149
150 enum cxacru_poll_state {
151         CXPOLL_STOPPING,
152         CXPOLL_STOPPED,
153         CXPOLL_POLLING,
154         CXPOLL_SHUTDOWN
155 };
156
157 struct cxacru_modem_type {
158         u32 pll_f_clk;
159         u32 pll_b_clk;
160         int boot_rom_patch;
161 };
162
163 struct cxacru_data {
164         struct usbatm_data *usbatm;
165
166         const struct cxacru_modem_type *modem_type;
167
168         int line_status;
169         struct mutex adsl_state_serialize;
170         int adsl_status;
171         struct delayed_work poll_work;
172         u32 card_info[CXINF_MAX];
173         struct mutex poll_state_serialize;
174         enum cxacru_poll_state poll_state;
175
176         /* contol handles */
177         struct mutex cm_serialize;
178         u8 *rcv_buf;
179         u8 *snd_buf;
180         struct urb *rcv_urb;
181         struct urb *snd_urb;
182         struct completion rcv_done;
183         struct completion snd_done;
184 };
185
186 static int cxacru_cm(struct cxacru_data *instance, enum cxacru_cm_request cm,
187         u8 *wdata, int wsize, u8 *rdata, int rsize);
188 static void cxacru_poll_status(struct work_struct *work);
189
190 /* Card info exported through sysfs */
191 #define CXACRU__ATTR_INIT(_name) \
192 static DEVICE_ATTR(_name, S_IRUGO, cxacru_sysfs_show_##_name, NULL)
193
194 #define CXACRU_CMD_INIT(_name) \
195 static DEVICE_ATTR(_name, S_IWUSR | S_IRUGO, \
196         cxacru_sysfs_show_##_name, cxacru_sysfs_store_##_name)
197
198 #define CXACRU_ATTR_INIT(_value, _type, _name) \
199 static ssize_t cxacru_sysfs_show_##_name(struct device *dev, \
200         struct device_attribute *attr, char *buf) \
201 { \
202         struct usb_interface *intf = to_usb_interface(dev); \
203         struct usbatm_data *usbatm_instance = usb_get_intfdata(intf); \
204         struct cxacru_data *instance = usbatm_instance->driver_data; \
205         return cxacru_sysfs_showattr_##_type(instance->card_info[_value], buf); \
206 } \
207 CXACRU__ATTR_INIT(_name)
208
209 #define CXACRU_ATTR_CREATE(_v, _t, _name) CXACRU_DEVICE_CREATE_FILE(_name)
210 #define CXACRU_CMD_CREATE(_name)          CXACRU_DEVICE_CREATE_FILE(_name)
211 #define CXACRU__ATTR_CREATE(_name)        CXACRU_DEVICE_CREATE_FILE(_name)
212
213 #define CXACRU_ATTR_REMOVE(_v, _t, _name) CXACRU_DEVICE_REMOVE_FILE(_name)
214 #define CXACRU_CMD_REMOVE(_name)          CXACRU_DEVICE_REMOVE_FILE(_name)
215 #define CXACRU__ATTR_REMOVE(_name)        CXACRU_DEVICE_REMOVE_FILE(_name)
216
217 static ssize_t cxacru_sysfs_showattr_u32(u32 value, char *buf)
218 {
219         return snprintf(buf, PAGE_SIZE, "%u\n", value);
220 }
221
222 static ssize_t cxacru_sysfs_showattr_s8(s8 value, char *buf)
223 {
224         return snprintf(buf, PAGE_SIZE, "%d\n", value);
225 }
226
227 static ssize_t cxacru_sysfs_showattr_dB(s16 value, char *buf)
228 {
229         return snprintf(buf, PAGE_SIZE, "%d.%02u\n",
230                                         value / 100, abs(value) % 100);
231 }
232
233 static ssize_t cxacru_sysfs_showattr_bool(u32 value, char *buf)
234 {
235         static char *str[] = { "no", "yes" };
236         if (unlikely(value >= ARRAY_SIZE(str)))
237                 return snprintf(buf, PAGE_SIZE, "%u\n", value);
238         return snprintf(buf, PAGE_SIZE, "%s\n", str[value]);
239 }
240
241 static ssize_t cxacru_sysfs_showattr_LINK(u32 value, char *buf)
242 {
243         static char *str[] = { NULL, "not connected", "connected", "lost" };
244         if (unlikely(value >= ARRAY_SIZE(str) || str[value] == NULL))
245                 return snprintf(buf, PAGE_SIZE, "%u\n", value);
246         return snprintf(buf, PAGE_SIZE, "%s\n", str[value]);
247 }
248
249 static ssize_t cxacru_sysfs_showattr_LINE(u32 value, char *buf)
250 {
251         static char *str[] = { "down", "attempting to activate",
252                 "training", "channel analysis", "exchange", "up",
253                 "waiting", "initialising"
254         };
255         if (unlikely(value >= ARRAY_SIZE(str)))
256                 return snprintf(buf, PAGE_SIZE, "%u\n", value);
257         return snprintf(buf, PAGE_SIZE, "%s\n", str[value]);
258 }
259
260 static ssize_t cxacru_sysfs_showattr_MODU(u32 value, char *buf)
261 {
262         static char *str[] = {
263                         NULL,
264                         "ANSI T1.413",
265                         "ITU-T G.992.1 (G.DMT)",
266                         "ITU-T G.992.2 (G.LITE)"
267         };
268         if (unlikely(value >= ARRAY_SIZE(str) || str[value] == NULL))
269                 return snprintf(buf, PAGE_SIZE, "%u\n", value);
270         return snprintf(buf, PAGE_SIZE, "%s\n", str[value]);
271 }
272
273 /*
274  * This could use MAC_ADDRESS_HIGH and MAC_ADDRESS_LOW, but since
275  * this data is already in atm_dev there's no point.
276  *
277  * MAC_ADDRESS_HIGH = 0x????5544
278  * MAC_ADDRESS_LOW  = 0x33221100
279  * Where 00-55 are bytes 0-5 of the MAC.
280  */
281 static ssize_t cxacru_sysfs_show_mac_address(struct device *dev,
282         struct device_attribute *attr, char *buf)
283 {
284         struct usb_interface *intf = to_usb_interface(dev);
285         struct usbatm_data *usbatm_instance = usb_get_intfdata(intf);
286         struct atm_dev *atm_dev = usbatm_instance->atm_dev;
287
288         return snprintf(buf, PAGE_SIZE, "%02x:%02x:%02x:%02x:%02x:%02x\n",
289                         atm_dev->esi[0], atm_dev->esi[1], atm_dev->esi[2],
290                         atm_dev->esi[3], atm_dev->esi[4], atm_dev->esi[5]);
291 }
292
293 static ssize_t cxacru_sysfs_show_adsl_state(struct device *dev,
294         struct device_attribute *attr, char *buf)
295 {
296         struct usb_interface *intf = to_usb_interface(dev);
297         struct usbatm_data *usbatm_instance = usb_get_intfdata(intf);
298         struct cxacru_data *instance = usbatm_instance->driver_data;
299         u32 value = instance->card_info[CXINF_LINE_STARTABLE];
300
301         static char *str[] = { "running", "stopped" };
302         if (unlikely(value >= ARRAY_SIZE(str)))
303                 return snprintf(buf, PAGE_SIZE, "%u\n", value);
304         return snprintf(buf, PAGE_SIZE, "%s\n", str[value]);
305 }
306
307 static ssize_t cxacru_sysfs_store_adsl_state(struct device *dev,
308         struct device_attribute *attr, const char *buf, size_t count)
309 {
310         struct usb_interface *intf = to_usb_interface(dev);
311         struct usbatm_data *usbatm_instance = usb_get_intfdata(intf);
312         struct cxacru_data *instance = usbatm_instance->driver_data;
313         int ret;
314         int poll = -1;
315         char str_cmd[8];
316         int len = strlen(buf);
317
318         if (!capable(CAP_NET_ADMIN))
319                 return -EACCES;
320
321         ret = sscanf(buf, "%7s", str_cmd);
322         if (ret != 1)
323                 return -EINVAL;
324         ret = 0;
325
326         if (mutex_lock_interruptible(&instance->adsl_state_serialize))
327                 return -ERESTARTSYS;
328
329         if (!strcmp(str_cmd, "stop") || !strcmp(str_cmd, "restart")) {
330                 ret = cxacru_cm(instance, CM_REQUEST_CHIP_ADSL_LINE_STOP, NULL, 0, NULL, 0);
331                 if (ret < 0) {
332                         atm_err(usbatm_instance, "change adsl state:"
333                                 " CHIP_ADSL_LINE_STOP returned %d\n", ret);
334
335                         ret = -EIO;
336                 } else {
337                         ret = len;
338                         poll = CXPOLL_STOPPED;
339                 }
340         }
341
342         /* Line status is only updated every second
343          * and the device appears to only react to
344          * START/STOP every second too. Wait 1.5s to
345          * be sure that restart will have an effect. */
346         if (!strcmp(str_cmd, "restart"))
347                 msleep(1500);
348
349         if (!strcmp(str_cmd, "start") || !strcmp(str_cmd, "restart")) {
350                 ret = cxacru_cm(instance, CM_REQUEST_CHIP_ADSL_LINE_START, NULL, 0, NULL, 0);
351                 if (ret < 0) {
352                         atm_err(usbatm_instance, "change adsl state:"
353                                 " CHIP_ADSL_LINE_START returned %d\n", ret);
354
355                         ret = -EIO;
356                 } else {
357                         ret = len;
358                         poll = CXPOLL_POLLING;
359                 }
360         }
361
362         if (!strcmp(str_cmd, "poll")) {
363                 ret = len;
364                 poll = CXPOLL_POLLING;
365         }
366
367         if (ret == 0) {
368                 ret = -EINVAL;
369                 poll = -1;
370         }
371
372         if (poll == CXPOLL_POLLING) {
373                 mutex_lock(&instance->poll_state_serialize);
374                 switch (instance->poll_state) {
375                 case CXPOLL_STOPPED:
376                         /* start polling */
377                         instance->poll_state = CXPOLL_POLLING;
378                         break;
379
380                 case CXPOLL_STOPPING:
381                         /* abort stop request */
382                         instance->poll_state = CXPOLL_POLLING;
383                 case CXPOLL_POLLING:
384                 case CXPOLL_SHUTDOWN:
385                         /* don't start polling */
386                         poll = -1;
387                 }
388                 mutex_unlock(&instance->poll_state_serialize);
389         } else if (poll == CXPOLL_STOPPED) {
390                 mutex_lock(&instance->poll_state_serialize);
391                 /* request stop */
392                 if (instance->poll_state == CXPOLL_POLLING)
393                         instance->poll_state = CXPOLL_STOPPING;
394                 mutex_unlock(&instance->poll_state_serialize);
395         }
396
397         mutex_unlock(&instance->adsl_state_serialize);
398
399         if (poll == CXPOLL_POLLING)
400                 cxacru_poll_status(&instance->poll_work.work);
401
402         return ret;
403 }
404
405 /*
406  * All device attributes are included in CXACRU_ALL_FILES
407  * so that the same list can be used multiple times:
408  *     INIT   (define the device attributes)
409  *     CREATE (create all the device files)
410  *     REMOVE (remove all the device files)
411  *
412  * With the last two being defined as needed in the functions
413  * they are used in before calling CXACRU_ALL_FILES()
414  */
415 #define CXACRU_ALL_FILES(_action) \
416 CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_RATE,           u32,  downstream_rate); \
417 CXACRU_ATTR_##_action(CXINF_UPSTREAM_RATE,             u32,  upstream_rate); \
418 CXACRU_ATTR_##_action(CXINF_LINK_STATUS,               LINK, link_status); \
419 CXACRU_ATTR_##_action(CXINF_LINE_STATUS,               LINE, line_status); \
420 CXACRU__ATTR_##_action(                                      mac_address); \
421 CXACRU_ATTR_##_action(CXINF_UPSTREAM_SNR_MARGIN,       dB,   upstream_snr_margin); \
422 CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_SNR_MARGIN,     dB,   downstream_snr_margin); \
423 CXACRU_ATTR_##_action(CXINF_UPSTREAM_ATTENUATION,      dB,   upstream_attenuation); \
424 CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_ATTENUATION,    dB,   downstream_attenuation); \
425 CXACRU_ATTR_##_action(CXINF_TRANSMITTER_POWER,         s8,   transmitter_power); \
426 CXACRU_ATTR_##_action(CXINF_UPSTREAM_BITS_PER_FRAME,   u32,  upstream_bits_per_frame); \
427 CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_BITS_PER_FRAME, u32,  downstream_bits_per_frame); \
428 CXACRU_ATTR_##_action(CXINF_STARTUP_ATTEMPTS,          u32,  startup_attempts); \
429 CXACRU_ATTR_##_action(CXINF_UPSTREAM_CRC_ERRORS,       u32,  upstream_crc_errors); \
430 CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_CRC_ERRORS,     u32,  downstream_crc_errors); \
431 CXACRU_ATTR_##_action(CXINF_UPSTREAM_FEC_ERRORS,       u32,  upstream_fec_errors); \
432 CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_FEC_ERRORS,     u32,  downstream_fec_errors); \
433 CXACRU_ATTR_##_action(CXINF_UPSTREAM_HEC_ERRORS,       u32,  upstream_hec_errors); \
434 CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_HEC_ERRORS,     u32,  downstream_hec_errors); \
435 CXACRU_ATTR_##_action(CXINF_LINE_STARTABLE,            bool, line_startable); \
436 CXACRU_ATTR_##_action(CXINF_MODULATION,                MODU, modulation); \
437 CXACRU_ATTR_##_action(CXINF_ADSL_HEADEND,              u32,  adsl_headend); \
438 CXACRU_ATTR_##_action(CXINF_ADSL_HEADEND_ENVIRONMENT,  u32,  adsl_headend_environment); \
439 CXACRU_ATTR_##_action(CXINF_CONTROLLER_VERSION,        u32,  adsl_controller_version); \
440 CXACRU_CMD_##_action(                                        adsl_state);
441
442 CXACRU_ALL_FILES(INIT);
443
444 /* the following three functions are stolen from drivers/usb/core/message.c */
445 static void cxacru_blocking_completion(struct urb *urb)
446 {
447         complete((struct completion *)urb->context);
448 }
449
450 static void cxacru_timeout_kill(unsigned long data)
451 {
452         usb_unlink_urb((struct urb *) data);
453 }
454
455 static int cxacru_start_wait_urb(struct urb *urb, struct completion *done,
456                                  int* actual_length)
457 {
458         struct timer_list timer;
459         int status;
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         status = urb->status;
468         del_timer_sync(&timer);
469
470         if (actual_length)
471                 *actual_length = urb->actual_length;
472         return status;
473 }
474
475 static int cxacru_cm(struct cxacru_data *instance, enum cxacru_cm_request cm,
476                      u8 *wdata, int wsize, u8 *rdata, int rsize)
477 {
478         int ret, actlen;
479         int offb, offd;
480         const int stride = CMD_PACKET_SIZE - 4;
481         u8 *wbuf = instance->snd_buf;
482         u8 *rbuf = instance->rcv_buf;
483         int wbuflen = ((wsize - 1) / stride + 1) * CMD_PACKET_SIZE;
484         int rbuflen = ((rsize - 1) / stride + 1) * CMD_PACKET_SIZE;
485
486         if (wbuflen > PAGE_SIZE || rbuflen > PAGE_SIZE) {
487                 dbg("too big transfer requested");
488                 ret = -ENOMEM;
489                 goto fail;
490         }
491
492         mutex_lock(&instance->cm_serialize);
493
494         /* submit reading urb before the writing one */
495         init_completion(&instance->rcv_done);
496         ret = usb_submit_urb(instance->rcv_urb, GFP_KERNEL);
497         if (ret < 0) {
498                 dbg("submitting read urb for cm %#x failed", cm);
499                 ret = ret;
500                 goto fail;
501         }
502
503         memset(wbuf, 0, wbuflen);
504         /* handle wsize == 0 */
505         wbuf[0] = cm;
506         for (offb = offd = 0; offd < wsize; offd += stride, offb += CMD_PACKET_SIZE) {
507                 wbuf[offb] = cm;
508                 memcpy(wbuf + offb + 4, wdata + offd, min_t(int, stride, wsize - offd));
509         }
510
511         instance->snd_urb->transfer_buffer_length = wbuflen;
512         init_completion(&instance->snd_done);
513         ret = usb_submit_urb(instance->snd_urb, GFP_KERNEL);
514         if (ret < 0) {
515                 dbg("submitting write urb for cm %#x failed", cm);
516                 ret = ret;
517                 goto fail;
518         }
519
520         ret = cxacru_start_wait_urb(instance->snd_urb, &instance->snd_done, NULL);
521         if (ret < 0) {
522                 dbg("sending cm %#x failed", cm);
523                 ret = ret;
524                 goto fail;
525         }
526
527         ret = cxacru_start_wait_urb(instance->rcv_urb, &instance->rcv_done, &actlen);
528         if (ret < 0) {
529                 dbg("receiving cm %#x failed", cm);
530                 ret = ret;
531                 goto fail;
532         }
533         if (actlen % CMD_PACKET_SIZE || !actlen) {
534                 dbg("response is not a positive multiple of %d: %#x",
535                                 CMD_PACKET_SIZE, actlen);
536                 ret = -EIO;
537                 goto fail;
538         }
539
540         /* check the return status and copy the data to the output buffer, if needed */
541         for (offb = offd = 0; offd < rsize && offb < actlen; offb += CMD_PACKET_SIZE) {
542                 if (rbuf[offb] != cm) {
543                         dbg("wrong cm %#x in response", rbuf[offb]);
544                         ret = -EIO;
545                         goto fail;
546                 }
547                 if (rbuf[offb + 1] != CM_STATUS_SUCCESS) {
548                         dbg("response failed: %#x", rbuf[offb + 1]);
549                         ret = -EIO;
550                         goto fail;
551                 }
552                 if (offd >= rsize)
553                         break;
554                 memcpy(rdata + offd, rbuf + offb + 4, min_t(int, stride, rsize - offd));
555                 offd += stride;
556         }
557
558         ret = offd;
559         dbg("cm %#x", cm);
560 fail:
561         mutex_unlock(&instance->cm_serialize);
562         return ret;
563 }
564
565 static int cxacru_cm_get_array(struct cxacru_data *instance, enum cxacru_cm_request cm,
566                                u32 *data, int size)
567 {
568         int ret, len;
569         u32 *buf;
570         int offb, offd;
571         const int stride = CMD_PACKET_SIZE / (4 * 2) - 1;
572         int buflen =  ((size - 1) / stride + 1 + size * 2) * 4;
573
574         buf = kmalloc(buflen, GFP_KERNEL);
575         if (!buf)
576                 return -ENOMEM;
577
578         ret = cxacru_cm(instance, cm, NULL, 0, (u8 *) buf, buflen);
579         if (ret < 0)
580                 goto cleanup;
581
582         /* len > 0 && len % 4 == 0 guaranteed by cxacru_cm() */
583         len = ret / 4;
584         for (offb = 0; offb < len; ) {
585                 int l = le32_to_cpu(buf[offb++]);
586                 if (l > stride || l > (len - offb) / 2) {
587                         dbg("wrong data length %#x in response", l);
588                         ret = -EIO;
589                         goto cleanup;
590                 }
591                 while (l--) {
592                         offd = le32_to_cpu(buf[offb++]);
593                         if (offd >= size) {
594                                 dbg("wrong index %#x in response", offd);
595                                 ret = -EIO;
596                                 goto cleanup;
597                         }
598                         data[offd] = le32_to_cpu(buf[offb++]);
599                 }
600         }
601
602         ret = 0;
603
604 cleanup:
605         kfree(buf);
606         return ret;
607 }
608
609 static int cxacru_card_status(struct cxacru_data *instance)
610 {
611         int ret = cxacru_cm(instance, CM_REQUEST_CARD_GET_STATUS, NULL, 0, NULL, 0);
612         if (ret < 0) {          /* firmware not loaded */
613                 dbg("cxacru_adsl_start: CARD_GET_STATUS returned %d", ret);
614                 return ret;
615         }
616         return 0;
617 }
618
619 static void cxacru_remove_device_files(struct usbatm_data *usbatm_instance,
620                 struct atm_dev *atm_dev)
621 {
622         struct usb_interface *intf = usbatm_instance->usb_intf;
623
624         #define CXACRU_DEVICE_REMOVE_FILE(_name) \
625                 device_remove_file(&intf->dev, &dev_attr_##_name);
626         CXACRU_ALL_FILES(REMOVE);
627         #undef CXACRU_DEVICE_REMOVE_FILE
628 }
629
630 static int cxacru_atm_start(struct usbatm_data *usbatm_instance,
631                 struct atm_dev *atm_dev)
632 {
633         struct cxacru_data *instance = usbatm_instance->driver_data;
634         struct usb_interface *intf = usbatm_instance->usb_intf;
635         /*
636         struct atm_dev *atm_dev = usbatm_instance->atm_dev;
637         */
638         int ret;
639         int start_polling = 1;
640
641         dbg("cxacru_atm_start");
642
643         /* Read MAC address */
644         ret = cxacru_cm(instance, CM_REQUEST_CARD_GET_MAC_ADDRESS, NULL, 0,
645                         atm_dev->esi, sizeof(atm_dev->esi));
646         if (ret < 0) {
647                 atm_err(usbatm_instance, "cxacru_atm_start: CARD_GET_MAC_ADDRESS returned %d\n", ret);
648                 return ret;
649         }
650
651         #define CXACRU_DEVICE_CREATE_FILE(_name) \
652                 ret = device_create_file(&intf->dev, &dev_attr_##_name); \
653                 if (unlikely(ret)) \
654                         goto fail_sysfs;
655         CXACRU_ALL_FILES(CREATE);
656         #undef CXACRU_DEVICE_CREATE_FILE
657
658         /* start ADSL */
659         mutex_lock(&instance->adsl_state_serialize);
660         ret = cxacru_cm(instance, CM_REQUEST_CHIP_ADSL_LINE_START, NULL, 0, NULL, 0);
661         if (ret < 0)
662                 atm_err(usbatm_instance, "cxacru_atm_start: CHIP_ADSL_LINE_START returned %d\n", ret);
663
664         /* Start status polling */
665         mutex_lock(&instance->poll_state_serialize);
666         switch (instance->poll_state) {
667         case CXPOLL_STOPPED:
668                 /* start polling */
669                 instance->poll_state = CXPOLL_POLLING;
670                 break;
671
672         case CXPOLL_STOPPING:
673                 /* abort stop request */
674                 instance->poll_state = CXPOLL_POLLING;
675         case CXPOLL_POLLING:
676         case CXPOLL_SHUTDOWN:
677                 /* don't start polling */
678                 start_polling = 0;
679         }
680         mutex_unlock(&instance->poll_state_serialize);
681         mutex_unlock(&instance->adsl_state_serialize);
682
683         if (start_polling)
684                 cxacru_poll_status(&instance->poll_work.work);
685         return 0;
686
687 fail_sysfs:
688         usb_err(usbatm_instance, "cxacru_atm_start: device_create_file failed (%d)\n", ret);
689         cxacru_remove_device_files(usbatm_instance, atm_dev);
690         return ret;
691 }
692
693 static void cxacru_poll_status(struct work_struct *work)
694 {
695         struct cxacru_data *instance =
696                 container_of(work, struct cxacru_data, poll_work.work);
697         u32 buf[CXINF_MAX] = {};
698         struct usbatm_data *usbatm = instance->usbatm;
699         struct atm_dev *atm_dev = usbatm->atm_dev;
700         int keep_polling = 1;
701         int ret;
702
703         ret = cxacru_cm_get_array(instance, CM_REQUEST_CARD_INFO_GET, buf, CXINF_MAX);
704         if (ret < 0) {
705                 if (ret != -ESHUTDOWN)
706                         atm_warn(usbatm, "poll status: error %d\n", ret);
707
708                 mutex_lock(&instance->poll_state_serialize);
709                 if (instance->poll_state != CXPOLL_SHUTDOWN) {
710                         instance->poll_state = CXPOLL_STOPPED;
711
712                         if (ret != -ESHUTDOWN)
713                                 atm_warn(usbatm, "polling disabled, set adsl_state"
714                                                 " to 'start' or 'poll' to resume\n");
715                 }
716                 mutex_unlock(&instance->poll_state_serialize);
717                 goto reschedule;
718         }
719
720         memcpy(instance->card_info, buf, sizeof(instance->card_info));
721
722         if (instance->adsl_status != buf[CXINF_LINE_STARTABLE]) {
723                 instance->adsl_status = buf[CXINF_LINE_STARTABLE];
724
725                 switch (instance->adsl_status) {
726                 case 0:
727                         atm_printk(KERN_INFO, usbatm, "ADSL state: running\n");
728                         break;
729
730                 case 1:
731                         atm_printk(KERN_INFO, usbatm, "ADSL state: stopped\n");
732                         break;
733
734                 default:
735                         atm_printk(KERN_INFO, usbatm, "Unknown adsl status %02x\n", instance->adsl_status);
736                         break;
737                 }
738         }
739
740         if (instance->line_status == buf[CXINF_LINE_STATUS])
741                 goto reschedule;
742
743         instance->line_status = buf[CXINF_LINE_STATUS];
744         switch (instance->line_status) {
745         case 0:
746                 atm_dev->signal = ATM_PHY_SIG_LOST;
747                 atm_info(usbatm, "ADSL line: down\n");
748                 break;
749
750         case 1:
751                 atm_dev->signal = ATM_PHY_SIG_LOST;
752                 atm_info(usbatm, "ADSL line: attempting to activate\n");
753                 break;
754
755         case 2:
756                 atm_dev->signal = ATM_PHY_SIG_LOST;
757                 atm_info(usbatm, "ADSL line: training\n");
758                 break;
759
760         case 3:
761                 atm_dev->signal = ATM_PHY_SIG_LOST;
762                 atm_info(usbatm, "ADSL line: channel analysis\n");
763                 break;
764
765         case 4:
766                 atm_dev->signal = ATM_PHY_SIG_LOST;
767                 atm_info(usbatm, "ADSL line: exchange\n");
768                 break;
769
770         case 5:
771                 atm_dev->link_rate = buf[CXINF_DOWNSTREAM_RATE] * 1000 / 424;
772                 atm_dev->signal = ATM_PHY_SIG_FOUND;
773
774                 atm_info(usbatm, "ADSL line: up (%d kb/s down | %d kb/s up)\n",
775                      buf[CXINF_DOWNSTREAM_RATE], buf[CXINF_UPSTREAM_RATE]);
776                 break;
777
778         case 6:
779                 atm_dev->signal = ATM_PHY_SIG_LOST;
780                 atm_info(usbatm, "ADSL line: waiting\n");
781                 break;
782
783         case 7:
784                 atm_dev->signal = ATM_PHY_SIG_LOST;
785                 atm_info(usbatm, "ADSL line: initializing\n");
786                 break;
787
788         default:
789                 atm_dev->signal = ATM_PHY_SIG_UNKNOWN;
790                 atm_info(usbatm, "Unknown line state %02x\n", instance->line_status);
791                 break;
792         }
793 reschedule:
794
795         mutex_lock(&instance->poll_state_serialize);
796         if (instance->poll_state == CXPOLL_STOPPING &&
797                                 instance->adsl_status == 1 && /* stopped */
798                                 instance->line_status == 0) /* down */
799                 instance->poll_state = CXPOLL_STOPPED;
800
801         if (instance->poll_state == CXPOLL_STOPPED)
802                 keep_polling = 0;
803         mutex_unlock(&instance->poll_state_serialize);
804
805         if (keep_polling)
806                 schedule_delayed_work(&instance->poll_work,
807                                 round_jiffies_relative(POLL_INTERVAL*HZ));
808 }
809
810 static int cxacru_fw(struct usb_device *usb_dev, enum cxacru_fw_request fw,
811                      u8 code1, u8 code2, u32 addr, u8 *data, int size)
812 {
813         int ret;
814         u8 *buf;
815         int offd, offb;
816         const int stride = CMD_PACKET_SIZE - 8;
817
818         buf = (u8 *) __get_free_page(GFP_KERNEL);
819         if (!buf)
820                 return -ENOMEM;
821
822         offb = offd = 0;
823         do {
824                 int l = min_t(int, stride, size - offd);
825                 buf[offb++] = fw;
826                 buf[offb++] = l;
827                 buf[offb++] = code1;
828                 buf[offb++] = code2;
829                 *((u32 *) (buf + offb)) = cpu_to_le32(addr);
830                 offb += 4;
831                 addr += l;
832                 if(l)
833                         memcpy(buf + offb, data + offd, l);
834                 if (l < stride)
835                         memset(buf + offb + l, 0, stride - l);
836                 offb += stride;
837                 offd += stride;
838                 if ((offb >= PAGE_SIZE) || (offd >= size)) {
839                         ret = usb_bulk_msg(usb_dev, usb_sndbulkpipe(usb_dev, CXACRU_EP_CMD),
840                                            buf, offb, NULL, CMD_TIMEOUT);
841                         if (ret < 0) {
842                                 dbg("sending fw %#x failed", fw);
843                                 goto cleanup;
844                         }
845                         offb = 0;
846                 }
847         } while(offd < size);
848         dbg("sent fw %#x", fw);
849
850         ret = 0;
851
852 cleanup:
853         free_page((unsigned long) buf);
854         return ret;
855 }
856
857 static void cxacru_upload_firmware(struct cxacru_data *instance,
858                                    const struct firmware *fw,
859                                    const struct firmware *bp,
860                                    const struct firmware *cf)
861 {
862         int ret;
863         int off;
864         struct usbatm_data *usbatm = instance->usbatm;
865         struct usb_device *usb_dev = usbatm->usb_dev;
866         u16 signature[] = { usb_dev->descriptor.idVendor, usb_dev->descriptor.idProduct };
867         u32 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                         u32 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);