Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-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         int 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         if (unlikely(value < 0)) {
230                 return snprintf(buf, PAGE_SIZE, "%d.%02u\n",
231                                                 value / 100, -value % 100);
232         } else {
233                 return snprintf(buf, PAGE_SIZE, "%d.%02u\n",
234                                                 value / 100, value % 100);
235         }
236 }
237
238 static ssize_t cxacru_sysfs_showattr_bool(u32 value, char *buf)
239 {
240         switch (value) {
241         case 0: return snprintf(buf, PAGE_SIZE, "no\n");
242         case 1: return snprintf(buf, PAGE_SIZE, "yes\n");
243         default: return 0;
244         }
245 }
246
247 static ssize_t cxacru_sysfs_showattr_LINK(u32 value, char *buf)
248 {
249         switch (value) {
250         case 1: return snprintf(buf, PAGE_SIZE, "not connected\n");
251         case 2: return snprintf(buf, PAGE_SIZE, "connected\n");
252         case 3: return snprintf(buf, PAGE_SIZE, "lost\n");
253         default: return snprintf(buf, PAGE_SIZE, "unknown (%u)\n", value);
254         }
255 }
256
257 static ssize_t cxacru_sysfs_showattr_LINE(u32 value, char *buf)
258 {
259         switch (value) {
260         case 0: return snprintf(buf, PAGE_SIZE, "down\n");
261         case 1: return snprintf(buf, PAGE_SIZE, "attempting to activate\n");
262         case 2: return snprintf(buf, PAGE_SIZE, "training\n");
263         case 3: return snprintf(buf, PAGE_SIZE, "channel analysis\n");
264         case 4: return snprintf(buf, PAGE_SIZE, "exchange\n");
265         case 5: return snprintf(buf, PAGE_SIZE, "up\n");
266         case 6: return snprintf(buf, PAGE_SIZE, "waiting\n");
267         case 7: return snprintf(buf, PAGE_SIZE, "initialising\n");
268         default: return snprintf(buf, PAGE_SIZE, "unknown (%u)\n", value);
269         }
270 }
271
272 static ssize_t cxacru_sysfs_showattr_MODU(u32 value, char *buf)
273 {
274         switch (value) {
275         case 0: return 0;
276         case 1: return snprintf(buf, PAGE_SIZE, "ANSI T1.413\n");
277         case 2: return snprintf(buf, PAGE_SIZE, "ITU-T G.992.1 (G.DMT)\n");
278         case 3: return snprintf(buf, PAGE_SIZE, "ITU-T G.992.2 (G.LITE)\n");
279         default: return snprintf(buf, PAGE_SIZE, "unknown (%u)\n", value);
280         }
281 }
282
283 /*
284  * This could use MAC_ADDRESS_HIGH and MAC_ADDRESS_LOW, but since
285  * this data is already in atm_dev there's no point.
286  *
287  * MAC_ADDRESS_HIGH = 0x????5544
288  * MAC_ADDRESS_LOW  = 0x33221100
289  * Where 00-55 are bytes 0-5 of the MAC.
290  */
291 static ssize_t cxacru_sysfs_show_mac_address(struct device *dev,
292         struct device_attribute *attr, char *buf)
293 {
294         struct usb_interface *intf = to_usb_interface(dev);
295         struct usbatm_data *usbatm_instance = usb_get_intfdata(intf);
296         struct atm_dev *atm_dev = usbatm_instance->atm_dev;
297
298         return snprintf(buf, PAGE_SIZE, "%02x:%02x:%02x:%02x:%02x:%02x\n",
299                         atm_dev->esi[0], atm_dev->esi[1], atm_dev->esi[2],
300                         atm_dev->esi[3], atm_dev->esi[4], atm_dev->esi[5]);
301 }
302
303 static ssize_t cxacru_sysfs_show_adsl_state(struct device *dev,
304         struct device_attribute *attr, char *buf)
305 {
306         struct usb_interface *intf = to_usb_interface(dev);
307         struct usbatm_data *usbatm_instance = usb_get_intfdata(intf);
308         struct cxacru_data *instance = usbatm_instance->driver_data;
309         u32 value = instance->card_info[CXINF_LINE_STARTABLE];
310
311         switch (value) {
312         case 0: return snprintf(buf, PAGE_SIZE, "running\n");
313         case 1: return snprintf(buf, PAGE_SIZE, "stopped\n");
314         default: return snprintf(buf, PAGE_SIZE, "unknown (%u)\n", value);
315         }
316 }
317
318 static ssize_t cxacru_sysfs_store_adsl_state(struct device *dev,
319         struct device_attribute *attr, const char *buf, size_t count)
320 {
321         struct usb_interface *intf = to_usb_interface(dev);
322         struct usbatm_data *usbatm_instance = usb_get_intfdata(intf);
323         struct cxacru_data *instance = usbatm_instance->driver_data;
324         int ret;
325         int poll = -1;
326         char str_cmd[8];
327         int len = strlen(buf);
328
329         if (!capable(CAP_NET_ADMIN))
330                 return -EACCES;
331
332         ret = sscanf(buf, "%7s", str_cmd);
333         if (ret != 1)
334                 return -EINVAL;
335         ret = 0;
336
337         if (mutex_lock_interruptible(&instance->adsl_state_serialize))
338                 return -ERESTARTSYS;
339
340         if (!strcmp(str_cmd, "stop") || !strcmp(str_cmd, "restart")) {
341                 ret = cxacru_cm(instance, CM_REQUEST_CHIP_ADSL_LINE_STOP, NULL, 0, NULL, 0);
342                 if (ret < 0) {
343                         atm_err(usbatm_instance, "change adsl state:"
344                                 " CHIP_ADSL_LINE_STOP returned %d\n", ret);
345
346                         ret = -EIO;
347                 } else {
348                         ret = len;
349                         poll = CXPOLL_STOPPED;
350                 }
351         }
352
353         /* Line status is only updated every second
354          * and the device appears to only react to
355          * START/STOP every second too. Wait 1.5s to
356          * be sure that restart will have an effect. */
357         if (!strcmp(str_cmd, "restart"))
358                 msleep(1500);
359
360         if (!strcmp(str_cmd, "start") || !strcmp(str_cmd, "restart")) {
361                 ret = cxacru_cm(instance, CM_REQUEST_CHIP_ADSL_LINE_START, NULL, 0, NULL, 0);
362                 if (ret < 0) {
363                         atm_err(usbatm_instance, "change adsl state:"
364                                 " CHIP_ADSL_LINE_START returned %d\n", ret);
365
366                         ret = -EIO;
367                 } else {
368                         ret = len;
369                         poll = CXPOLL_POLLING;
370                 }
371         }
372
373         if (!strcmp(str_cmd, "poll")) {
374                 ret = len;
375                 poll = CXPOLL_POLLING;
376         }
377
378         if (ret == 0) {
379                 ret = -EINVAL;
380                 poll = -1;
381         }
382
383         if (poll == CXPOLL_POLLING) {
384                 mutex_lock(&instance->poll_state_serialize);
385                 switch (instance->poll_state) {
386                 case CXPOLL_STOPPED:
387                         /* start polling */
388                         instance->poll_state = CXPOLL_POLLING;
389                         break;
390
391                 case CXPOLL_STOPPING:
392                         /* abort stop request */
393                         instance->poll_state = CXPOLL_POLLING;
394                 case CXPOLL_POLLING:
395                 case CXPOLL_SHUTDOWN:
396                         /* don't start polling */
397                         poll = -1;
398                 }
399                 mutex_unlock(&instance->poll_state_serialize);
400         } else if (poll == CXPOLL_STOPPED) {
401                 mutex_lock(&instance->poll_state_serialize);
402                 /* request stop */
403                 if (instance->poll_state == CXPOLL_POLLING)
404                         instance->poll_state = CXPOLL_STOPPING;
405                 mutex_unlock(&instance->poll_state_serialize);
406         }
407
408         mutex_unlock(&instance->adsl_state_serialize);
409
410         if (poll == CXPOLL_POLLING)
411                 cxacru_poll_status(&instance->poll_work.work);
412
413         return ret;
414 }
415
416 /*
417  * All device attributes are included in CXACRU_ALL_FILES
418  * so that the same list can be used multiple times:
419  *     INIT   (define the device attributes)
420  *     CREATE (create all the device files)
421  *     REMOVE (remove all the device files)
422  *
423  * With the last two being defined as needed in the functions
424  * they are used in before calling CXACRU_ALL_FILES()
425  */
426 #define CXACRU_ALL_FILES(_action) \
427 CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_RATE,           u32,  downstream_rate); \
428 CXACRU_ATTR_##_action(CXINF_UPSTREAM_RATE,             u32,  upstream_rate); \
429 CXACRU_ATTR_##_action(CXINF_LINK_STATUS,               LINK, link_status); \
430 CXACRU_ATTR_##_action(CXINF_LINE_STATUS,               LINE, line_status); \
431 CXACRU__ATTR_##_action(                                      mac_address); \
432 CXACRU_ATTR_##_action(CXINF_UPSTREAM_SNR_MARGIN,       dB,   upstream_snr_margin); \
433 CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_SNR_MARGIN,     dB,   downstream_snr_margin); \
434 CXACRU_ATTR_##_action(CXINF_UPSTREAM_ATTENUATION,      dB,   upstream_attenuation); \
435 CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_ATTENUATION,    dB,   downstream_attenuation); \
436 CXACRU_ATTR_##_action(CXINF_TRANSMITTER_POWER,         s8,   transmitter_power); \
437 CXACRU_ATTR_##_action(CXINF_UPSTREAM_BITS_PER_FRAME,   u32,  upstream_bits_per_frame); \
438 CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_BITS_PER_FRAME, u32,  downstream_bits_per_frame); \
439 CXACRU_ATTR_##_action(CXINF_STARTUP_ATTEMPTS,          u32,  startup_attempts); \
440 CXACRU_ATTR_##_action(CXINF_UPSTREAM_CRC_ERRORS,       u32,  upstream_crc_errors); \
441 CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_CRC_ERRORS,     u32,  downstream_crc_errors); \
442 CXACRU_ATTR_##_action(CXINF_UPSTREAM_FEC_ERRORS,       u32,  upstream_fec_errors); \
443 CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_FEC_ERRORS,     u32,  downstream_fec_errors); \
444 CXACRU_ATTR_##_action(CXINF_UPSTREAM_HEC_ERRORS,       u32,  upstream_hec_errors); \
445 CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_HEC_ERRORS,     u32,  downstream_hec_errors); \
446 CXACRU_ATTR_##_action(CXINF_LINE_STARTABLE,            bool, line_startable); \
447 CXACRU_ATTR_##_action(CXINF_MODULATION,                MODU, modulation); \
448 CXACRU_ATTR_##_action(CXINF_ADSL_HEADEND,              u32,  adsl_headend); \
449 CXACRU_ATTR_##_action(CXINF_ADSL_HEADEND_ENVIRONMENT,  u32,  adsl_headend_environment); \
450 CXACRU_ATTR_##_action(CXINF_CONTROLLER_VERSION,        u32,  adsl_controller_version); \
451 CXACRU_CMD_##_action(                                        adsl_state);
452
453 CXACRU_ALL_FILES(INIT);
454
455 /* the following three functions are stolen from drivers/usb/core/message.c */
456 static void cxacru_blocking_completion(struct urb *urb)
457 {
458         complete((struct completion *)urb->context);
459 }
460
461 static void cxacru_timeout_kill(unsigned long data)
462 {
463         usb_unlink_urb((struct urb *) data);
464 }
465
466 static int cxacru_start_wait_urb(struct urb *urb, struct completion *done,
467                                  int* actual_length)
468 {
469         struct timer_list timer;
470         int status;
471
472         init_timer(&timer);
473         timer.expires = jiffies + msecs_to_jiffies(CMD_TIMEOUT);
474         timer.data = (unsigned long) urb;
475         timer.function = cxacru_timeout_kill;
476         add_timer(&timer);
477         wait_for_completion(done);
478         status = urb->status;
479         if (status == -ECONNRESET)
480                 status = -ETIMEDOUT;
481         del_timer_sync(&timer);
482
483         if (actual_length)
484                 *actual_length = urb->actual_length;
485         return status;
486 }
487
488 static int cxacru_cm(struct cxacru_data *instance, enum cxacru_cm_request cm,
489                      u8 *wdata, int wsize, u8 *rdata, int rsize)
490 {
491         int ret, actlen;
492         int offb, offd;
493         const int stride = CMD_PACKET_SIZE - 4;
494         u8 *wbuf = instance->snd_buf;
495         u8 *rbuf = instance->rcv_buf;
496         int wbuflen = ((wsize - 1) / stride + 1) * CMD_PACKET_SIZE;
497         int rbuflen = ((rsize - 1) / stride + 1) * CMD_PACKET_SIZE;
498
499         if (wbuflen > PAGE_SIZE || rbuflen > PAGE_SIZE) {
500                 dbg("too big transfer requested");
501                 ret = -ENOMEM;
502                 goto fail;
503         }
504
505         mutex_lock(&instance->cm_serialize);
506
507         /* submit reading urb before the writing one */
508         init_completion(&instance->rcv_done);
509         ret = usb_submit_urb(instance->rcv_urb, GFP_KERNEL);
510         if (ret < 0) {
511                 dbg("submitting read urb for cm %#x failed", cm);
512                 ret = ret;
513                 goto fail;
514         }
515
516         memset(wbuf, 0, wbuflen);
517         /* handle wsize == 0 */
518         wbuf[0] = cm;
519         for (offb = offd = 0; offd < wsize; offd += stride, offb += CMD_PACKET_SIZE) {
520                 wbuf[offb] = cm;
521                 memcpy(wbuf + offb + 4, wdata + offd, min_t(int, stride, wsize - offd));
522         }
523
524         instance->snd_urb->transfer_buffer_length = wbuflen;
525         init_completion(&instance->snd_done);
526         ret = usb_submit_urb(instance->snd_urb, GFP_KERNEL);
527         if (ret < 0) {
528                 dbg("submitting write urb for cm %#x failed", cm);
529                 ret = ret;
530                 goto fail;
531         }
532
533         ret = cxacru_start_wait_urb(instance->snd_urb, &instance->snd_done, NULL);
534         if (ret < 0) {
535                 dbg("sending cm %#x failed", cm);
536                 ret = ret;
537                 goto fail;
538         }
539
540         ret = cxacru_start_wait_urb(instance->rcv_urb, &instance->rcv_done, &actlen);
541         if (ret < 0) {
542                 dbg("receiving cm %#x failed", cm);
543                 ret = ret;
544                 goto fail;
545         }
546         if (actlen % CMD_PACKET_SIZE || !actlen) {
547                 dbg("response is not a positive multiple of %d: %#x",
548                                 CMD_PACKET_SIZE, actlen);
549                 ret = -EIO;
550                 goto fail;
551         }
552
553         /* check the return status and copy the data to the output buffer, if needed */
554         for (offb = offd = 0; offd < rsize && offb < actlen; offb += CMD_PACKET_SIZE) {
555                 if (rbuf[offb] != cm) {
556                         dbg("wrong cm %#x in response", rbuf[offb]);
557                         ret = -EIO;
558                         goto fail;
559                 }
560                 if (rbuf[offb + 1] != CM_STATUS_SUCCESS) {
561                         dbg("response failed: %#x", rbuf[offb + 1]);
562                         ret = -EIO;
563                         goto fail;
564                 }
565                 if (offd >= rsize)
566                         break;
567                 memcpy(rdata + offd, rbuf + offb + 4, min_t(int, stride, rsize - offd));
568                 offd += stride;
569         }
570
571         ret = offd;
572         dbg("cm %#x", cm);
573 fail:
574         mutex_unlock(&instance->cm_serialize);
575         return ret;
576 }
577
578 static int cxacru_cm_get_array(struct cxacru_data *instance, enum cxacru_cm_request cm,
579                                u32 *data, int size)
580 {
581         int ret, len;
582         u32 *buf;
583         int offb, offd;
584         const int stride = CMD_PACKET_SIZE / (4 * 2) - 1;
585         int buflen =  ((size - 1) / stride + 1 + size * 2) * 4;
586
587         buf = kmalloc(buflen, GFP_KERNEL);
588         if (!buf)
589                 return -ENOMEM;
590
591         ret = cxacru_cm(instance, cm, NULL, 0, (u8 *) buf, buflen);
592         if (ret < 0)
593                 goto cleanup;
594
595         /* len > 0 && len % 4 == 0 guaranteed by cxacru_cm() */
596         len = ret / 4;
597         for (offb = 0; offb < len; ) {
598                 int l = le32_to_cpu(buf[offb++]);
599                 if (l > stride || l > (len - offb) / 2) {
600                         dbg("wrong data length %#x in response", l);
601                         ret = -EIO;
602                         goto cleanup;
603                 }
604                 while (l--) {
605                         offd = le32_to_cpu(buf[offb++]);
606                         if (offd >= size) {
607                                 dbg("wrong index %#x in response", offd);
608                                 ret = -EIO;
609                                 goto cleanup;
610                         }
611                         data[offd] = le32_to_cpu(buf[offb++]);
612                 }
613         }
614
615         ret = 0;
616
617 cleanup:
618         kfree(buf);
619         return ret;
620 }
621
622 static int cxacru_card_status(struct cxacru_data *instance)
623 {
624         int ret = cxacru_cm(instance, CM_REQUEST_CARD_GET_STATUS, NULL, 0, NULL, 0);
625         if (ret < 0) {          /* firmware not loaded */
626                 dbg("cxacru_adsl_start: CARD_GET_STATUS returned %d", ret);
627                 return ret;
628         }
629         return 0;
630 }
631
632 static int cxacru_atm_start(struct usbatm_data *usbatm_instance,
633                 struct atm_dev *atm_dev)
634 {
635         struct cxacru_data *instance = usbatm_instance->driver_data;
636         /*
637         struct atm_dev *atm_dev = usbatm_instance->atm_dev;
638         */
639         int ret;
640         int start_polling = 1;
641
642         dbg("cxacru_atm_start");
643
644         /* Read MAC address */
645         ret = cxacru_cm(instance, CM_REQUEST_CARD_GET_MAC_ADDRESS, NULL, 0,
646                         atm_dev->esi, sizeof(atm_dev->esi));
647         if (ret < 0) {
648                 atm_err(usbatm_instance, "cxacru_atm_start: CARD_GET_MAC_ADDRESS returned %d\n", ret);
649                 return ret;
650         }
651
652         /* start ADSL */
653         mutex_lock(&instance->adsl_state_serialize);
654         ret = cxacru_cm(instance, CM_REQUEST_CHIP_ADSL_LINE_START, NULL, 0, NULL, 0);
655         if (ret < 0) {
656                 atm_err(usbatm_instance, "cxacru_atm_start: CHIP_ADSL_LINE_START returned %d\n", ret);
657                 mutex_unlock(&instance->adsl_state_serialize);
658                 return ret;
659         }
660
661         /* Start status polling */
662         mutex_lock(&instance->poll_state_serialize);
663         switch (instance->poll_state) {
664         case CXPOLL_STOPPED:
665                 /* start polling */
666                 instance->poll_state = CXPOLL_POLLING;
667                 break;
668
669         case CXPOLL_STOPPING:
670                 /* abort stop request */
671                 instance->poll_state = CXPOLL_POLLING;
672         case CXPOLL_POLLING:
673         case CXPOLL_SHUTDOWN:
674                 /* don't start polling */
675                 start_polling = 0;
676         }
677         mutex_unlock(&instance->poll_state_serialize);
678         mutex_unlock(&instance->adsl_state_serialize);
679
680         if (start_polling)
681                 cxacru_poll_status(&instance->poll_work.work);
682         return 0;
683 }
684
685 static void cxacru_poll_status(struct work_struct *work)
686 {
687         struct cxacru_data *instance =
688                 container_of(work, struct cxacru_data, poll_work.work);
689         u32 buf[CXINF_MAX] = {};
690         struct usbatm_data *usbatm = instance->usbatm;
691         struct atm_dev *atm_dev = usbatm->atm_dev;
692         int keep_polling = 1;
693         int ret;
694
695         ret = cxacru_cm_get_array(instance, CM_REQUEST_CARD_INFO_GET, buf, CXINF_MAX);
696         if (ret < 0) {
697                 if (ret != -ESHUTDOWN)
698                         atm_warn(usbatm, "poll status: error %d\n", ret);
699
700                 mutex_lock(&instance->poll_state_serialize);
701                 if (instance->poll_state != CXPOLL_SHUTDOWN) {
702                         instance->poll_state = CXPOLL_STOPPED;
703
704                         if (ret != -ESHUTDOWN)
705                                 atm_warn(usbatm, "polling disabled, set adsl_state"
706                                                 " to 'start' or 'poll' to resume\n");
707                 }
708                 mutex_unlock(&instance->poll_state_serialize);
709                 goto reschedule;
710         }
711
712         memcpy(instance->card_info, buf, sizeof(instance->card_info));
713
714         if (instance->adsl_status != buf[CXINF_LINE_STARTABLE]) {
715                 instance->adsl_status = buf[CXINF_LINE_STARTABLE];
716
717                 switch (instance->adsl_status) {
718                 case 0:
719                         atm_printk(KERN_INFO, usbatm, "ADSL state: running\n");
720                         break;
721
722                 case 1:
723                         atm_printk(KERN_INFO, usbatm, "ADSL state: stopped\n");
724                         break;
725
726                 default:
727                         atm_printk(KERN_INFO, usbatm, "Unknown adsl status %02x\n", instance->adsl_status);
728                         break;
729                 }
730         }
731
732         if (instance->line_status == buf[CXINF_LINE_STATUS])
733                 goto reschedule;
734
735         instance->line_status = buf[CXINF_LINE_STATUS];
736         switch (instance->line_status) {
737         case 0:
738                 atm_dev->signal = ATM_PHY_SIG_LOST;
739                 atm_info(usbatm, "ADSL line: down\n");
740                 break;
741
742         case 1:
743                 atm_dev->signal = ATM_PHY_SIG_LOST;
744                 atm_info(usbatm, "ADSL line: attempting to activate\n");
745                 break;
746
747         case 2:
748                 atm_dev->signal = ATM_PHY_SIG_LOST;
749                 atm_info(usbatm, "ADSL line: training\n");
750                 break;
751
752         case 3:
753                 atm_dev->signal = ATM_PHY_SIG_LOST;
754                 atm_info(usbatm, "ADSL line: channel analysis\n");
755                 break;
756
757         case 4:
758                 atm_dev->signal = ATM_PHY_SIG_LOST;
759                 atm_info(usbatm, "ADSL line: exchange\n");
760                 break;
761
762         case 5:
763                 atm_dev->link_rate = buf[CXINF_DOWNSTREAM_RATE] * 1000 / 424;
764                 atm_dev->signal = ATM_PHY_SIG_FOUND;
765
766                 atm_info(usbatm, "ADSL line: up (%d kb/s down | %d kb/s up)\n",
767                      buf[CXINF_DOWNSTREAM_RATE], buf[CXINF_UPSTREAM_RATE]);
768                 break;
769
770         case 6:
771                 atm_dev->signal = ATM_PHY_SIG_LOST;
772                 atm_info(usbatm, "ADSL line: waiting\n");
773                 break;
774
775         case 7:
776                 atm_dev->signal = ATM_PHY_SIG_LOST;
777                 atm_info(usbatm, "ADSL line: initializing\n");
778                 break;
779
780         default:
781                 atm_dev->signal = ATM_PHY_SIG_UNKNOWN;
782                 atm_info(usbatm, "Unknown line state %02x\n", instance->line_status);
783                 break;
784         }
785 reschedule:
786
787         mutex_lock(&instance->poll_state_serialize);
788         if (instance->poll_state == CXPOLL_STOPPING &&
789                                 instance->adsl_status == 1 && /* stopped */
790                                 instance->line_status == 0) /* down */
791                 instance->poll_state = CXPOLL_STOPPED;
792
793         if (instance->poll_state == CXPOLL_STOPPED)
794                 keep_polling = 0;
795         mutex_unlock(&instance->poll_state_serialize);
796
797         if (keep_polling)
798                 schedule_delayed_work(&instance->poll_work,
799                                 round_jiffies_relative(POLL_INTERVAL*HZ));
800 }
801
802 static int cxacru_fw(struct usb_device *usb_dev, enum cxacru_fw_request fw,
803                      u8 code1, u8 code2, u32 addr, u8 *data, int size)
804 {
805         int ret;
806         u8 *buf;
807         int offd, offb;
808         const int stride = CMD_PACKET_SIZE - 8;
809
810         buf = (u8 *) __get_free_page(GFP_KERNEL);
811         if (!buf)
812                 return -ENOMEM;
813
814         offb = offd = 0;
815         do {
816                 int l = min_t(int, stride, size - offd);
817                 buf[offb++] = fw;
818                 buf[offb++] = l;
819                 buf[offb++] = code1;
820                 buf[offb++] = code2;
821                 *((u32 *) (buf + offb)) = cpu_to_le32(addr);
822                 offb += 4;
823                 addr += l;
824                 if(l)
825                         memcpy(buf + offb, data + offd, l);
826                 if (l < stride)
827                         memset(buf + offb + l, 0, stride - l);
828                 offb += stride;
829                 offd += stride;
830                 if ((offb >= PAGE_SIZE) || (offd >= size)) {
831                         ret = usb_bulk_msg(usb_dev, usb_sndbulkpipe(usb_dev, CXACRU_EP_CMD),
832                                            buf, offb, NULL, CMD_TIMEOUT);
833                         if (ret < 0) {
834                                 dbg("sending fw %#x failed", fw);
835                                 goto cleanup;
836                         }
837                         offb = 0;
838                 }
839         } while(offd < size);
840         dbg("sent fw %#x", fw);
841
842         ret = 0;
843
844 cleanup:
845         free_page((unsigned long) buf);
846         return ret;
847 }
848
849 static void cxacru_upload_firmware(struct cxacru_data *instance,
850                                    const struct firmware *fw,
851                                    const struct firmware *bp,
852                                    const struct firmware *cf)
853 {
854         int ret;
855         int off;
856         struct usbatm_data *usbatm = instance->usbatm;
857         struct usb_device *usb_dev = usbatm->usb_dev;
858         u16 signature[] = { usb_dev->descriptor.idVendor, usb_dev->descriptor.idProduct };
859         u32 val;
860
861         dbg("cxacru_upload_firmware");
862
863         /* FirmwarePllFClkValue */
864         val = cpu_to_le32(instance->modem_type->pll_f_clk);
865         ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, PLLFCLK_ADDR, (u8 *) &val, 4);
866         if (ret) {
867                 usb_err(usbatm, "FirmwarePllFClkValue failed: %d\n", ret);
868                 return;
869         }
870
871         /* FirmwarePllBClkValue */
872         val = cpu_to_le32(instance->modem_type->pll_b_clk);
873         ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, PLLBCLK_ADDR, (u8 *) &val, 4);
874         if (ret) {
875                 usb_err(usbatm, "FirmwarePllBClkValue failed: %d\n", ret);
876                 return;
877         }
878
879         /* Enable SDRAM */
880         val = cpu_to_le32(SDRAM_ENA);
881         ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, SDRAMEN_ADDR, (u8 *) &val, 4);
882         if (ret) {
883                 usb_err(usbatm, "Enable SDRAM failed: %d\n", ret);
884                 return;
885         }
886
887         /* Firmware */
888         ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, FW_ADDR, fw->data, fw->size);
889         if (ret) {
890                 usb_err(usbatm, "Firmware upload failed: %d\n", ret);
891                 return;
892         }
893
894         /* Boot ROM patch */
895         if (instance->modem_type->boot_rom_patch) {
896                 ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, BR_ADDR, bp->data, bp->size);
897                 if (ret) {
898                         usb_err(usbatm, "Boot ROM patching failed: %d\n", ret);
899                         return;
900                 }
901         }
902
903         /* Signature */
904         ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, SIG_ADDR, (u8 *) signature, 4);
905         if (ret) {
906                 usb_err(usbatm, "Signature storing failed: %d\n", ret);
907                 return;
908         }
909
910         if (instance->modem_type->boot_rom_patch) {
911                 val = cpu_to_le32(BR_ADDR);
912                 ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, BR_STACK_ADDR, (u8 *) &val, 4);
913         }
914         else {
915                 ret = cxacru_fw(usb_dev, FW_GOTO_MEM, 0x0, 0x0, FW_ADDR, NULL, 0);
916         }
917         if (ret) {
918                 usb_err(usbatm, "Passing control to firmware failed: %d\n", ret);
919                 return;
920         }
921
922         /* Delay to allow firmware to start up. */
923         msleep_interruptible(1000);
924
925         usb_clear_halt(usb_dev, usb_sndbulkpipe(usb_dev, CXACRU_EP_CMD));
926         usb_clear_halt(usb_dev, usb_rcvbulkpipe(usb_dev, CXACRU_EP_CMD));
927         usb_clear_halt(usb_dev, usb_sndbulkpipe(usb_dev, CXACRU_EP_DATA));
928         usb_clear_halt(usb_dev, usb_rcvbulkpipe(usb_dev, CXACRU_EP_DATA));
929
930         ret = cxacru_cm(instance, CM_REQUEST_CARD_GET_STATUS, NULL, 0, NULL, 0);
931         if (ret < 0) {
932                 usb_err(usbatm, "modem failed to initialize: %d\n", ret);
933                 return;
934         }
935
936         /* Load config data (le32), doing one packet at a time */
937         if (cf)
938                 for (off = 0; off < cf->size / 4; ) {
939                         u32 buf[CMD_PACKET_SIZE / 4 - 1];
940                         int i, len = min_t(int, cf->size / 4 - off, CMD_PACKET_SIZE / 4 / 2 - 1);
941                         buf[0] = cpu_to_le32(len);
942                         for (i = 0; i < len; i++, off++) {
943                                 buf[i * 2 + 1] = cpu_to_le32(off);
944                                 memcpy(buf + i * 2 + 2, cf->data + off * 4, 4);
945                         }
946                         ret = cxacru_cm(instance, CM_REQUEST_CARD_DATA_SET,
947                                         (u8 *) buf, len, NULL, 0);
948                         if (ret < 0) {
949                                 usb_err(usbatm, "load config data failed: %d\n", ret);
950                                 return;
951                         }
952                 }
953
954         msleep_interruptible(4000);
955 }
956
957 static int cxacru_find_firmware(struct cxacru_data *instance,
958                                 char* phase, const struct firmware **fw_p)
959 {
960         struct usbatm_data *usbatm = instance->usbatm;
961         struct device *dev = &usbatm->usb_intf->dev;
962         char buf[16];
963
964         sprintf(buf, "cxacru-%s.bin", phase);
965         dbg("cxacru_find_firmware: looking for %s", buf);
966
967         if (request_firmware(fw_p, buf, dev)) {
968                 usb_dbg(usbatm, "no stage %s firmware found\n", phase);
969                 return -ENOENT;
970         }
971
972         usb_info(usbatm, "found firmware %s\n", buf);
973
974         return 0;
975 }
976
977 static int cxacru_heavy_init(struct usbatm_data *usbatm_instance,
978                              struct usb_interface *usb_intf)
979 {
980         const struct firmware *fw, *bp, *cf;
981         struct cxacru_data *instance = usbatm_instance->driver_data;
982
983         int ret = cxacru_find_firmware(instance, "fw", &fw);
984         if (ret) {
985                 usb_warn(usbatm_instance, "firmware (cxacru-fw.bin) unavailable (system misconfigured?)\n");
986                 return ret;
987         }
988
989         if (instance->modem_type->boot_rom_patch) {
990                 ret = cxacru_find_firmware(instance, "bp", &bp);
991                 if (ret) {
992                         usb_warn(usbatm_instance, "boot ROM patch (cxacru-bp.bin) unavailable (system misconfigured?)\n");
993                         release_firmware(fw);
994                         return ret;
995                 }
996         }
997
998         if (cxacru_find_firmware(instance, "cf", &cf))          /* optional */
999                 cf = NULL;
1000
1001         cxacru_upload_firmware(instance, fw, bp, cf);
1002
1003         if (cf)
1004                 release_firmware(cf);
1005         if (instance->modem_type->boot_rom_patch)
1006                 release_firmware(bp);
1007         release_firmware(fw);
1008
1009         ret = cxacru_card_status(instance);
1010         if (ret)
1011                 dbg("modem initialisation failed");
1012         else
1013                 dbg("done setting up the modem");
1014
1015         return ret;
1016 }
1017
1018 static int cxacru_bind(struct usbatm_data *usbatm_instance,
1019                        struct usb_interface *intf, const struct usb_device_id *id)
1020 {
1021         struct cxacru_data *instance;
1022         struct usb_device *usb_dev = interface_to_usbdev(intf);
1023         int ret;
1024
1025         /* instance init */
1026         instance = kzalloc(sizeof(*instance), GFP_KERNEL);
1027         if (!instance) {
1028                 dbg("cxacru_bind: no memory for instance data");
1029                 return -ENOMEM;
1030         }
1031
1032         instance->usbatm = usbatm_instance;
1033         instance->modem_type = (struct cxacru_modem_type *) id->driver_info;
1034         memset(instance->card_info, 0, sizeof(instance->card_info));
1035
1036         mutex_init(&instance->poll_state_serialize);
1037         instance->poll_state = CXPOLL_STOPPED;
1038         instance->line_status = -1;
1039         instance->adsl_status = -1;
1040
1041         mutex_init(&instance->adsl_state_serialize);
1042
1043         instance->rcv_buf = (u8 *) __get_free_page(GFP_KERNEL);
1044         if (!instance->rcv_buf) {
1045                 dbg("cxacru_bind: no memory for rcv_buf");
1046                 ret = -ENOMEM;
1047                 goto fail;
1048         }
1049         instance->snd_buf = (u8 *) __get_free_page(GFP_KERNEL);
1050         if (!instance->snd_buf) {
1051                 dbg("cxacru_bind: no memory for snd_buf");
1052                 ret = -ENOMEM;
1053                 goto fail;
1054         }
1055         instance->rcv_urb = usb_alloc_urb(0, GFP_KERNEL);
1056         if (!instance->rcv_urb) {
1057                 dbg("cxacru_bind: no memory for rcv_urb");
1058                 ret = -ENOMEM;
1059                 goto fail;
1060         }
1061         instance->snd_urb = usb_alloc_urb(0, GFP_KERNEL);
1062         if (!instance->snd_urb) {
1063                 dbg("cxacru_bind: no memory for snd_urb");
1064                 ret = -ENOMEM;
1065                 goto fail;
1066         }
1067
1068         #define CXACRU_DEVICE_CREATE_FILE(_name) \
1069                 ret = device_create_file(&intf->dev, &dev_attr_##_name); \
1070                 if (unlikely(ret)) \
1071                         goto fail_sysfs;
1072         CXACRU_ALL_FILES(CREATE);
1073         #undef CXACRU_DEVICE_CREATE_FILE
1074
1075         usb_fill_int_urb(instance->rcv_urb,
1076                         usb_dev, usb_rcvintpipe(usb_dev, CXACRU_EP_CMD),
1077                         instance->rcv_buf, PAGE_SIZE,
1078                         cxacru_blocking_completion, &instance->rcv_done, 1);
1079
1080         usb_fill_int_urb(instance->snd_urb,
1081                         usb_dev, usb_sndintpipe(usb_dev, CXACRU_EP_CMD),
1082                         instance->snd_buf, PAGE_SIZE,
1083                         cxacru_blocking_completion, &instance->snd_done, 4);
1084
1085         mutex_init(&instance->cm_serialize);
1086
1087         INIT_DELAYED_WORK(&instance->poll_work, cxacru_poll_status);
1088
1089         usbatm_instance->driver_data = instance;
1090
1091         usbatm_instance->flags = (cxacru_card_status(instance) ? 0 : UDSL_SKIP_HEAVY_INIT);
1092
1093         return 0;
1094
1095  fail_sysfs:
1096         dbg("cxacru_bind: device_create_file failed (%d)\n", ret);
1097
1098         #define CXACRU_DEVICE_REMOVE_FILE(_name) \
1099                 device_remove_file(&intf->dev, &dev_attr_##_name);
1100         CXACRU_ALL_FILES(REMOVE);
1101         #undef CXACRU_DEVICE_REVOVE_FILE
1102
1103  fail:
1104         free_page((unsigned long) instance->snd_buf);
1105         free_page((unsigned long) instance->rcv_buf);
1106         usb_free_urb(instance->snd_urb);
1107         usb_free_urb(instance->rcv_urb);
1108         kfree(instance);
1109
1110         return ret;
1111 }
1112
1113 static void cxacru_unbind(struct usbatm_data *usbatm_instance,
1114                 struct usb_interface *intf)
1115 {
1116         struct cxacru_data *instance = usbatm_instance->driver_data;
1117         int is_polling = 1;
1118
1119         dbg("cxacru_unbind entered");
1120
1121         if (!instance) {
1122                 dbg("cxacru_unbind: NULL instance!");
1123                 return;
1124         }
1125
1126         mutex_lock(&instance->poll_state_serialize);
1127         BUG_ON(instance->poll_state == CXPOLL_SHUTDOWN);
1128
1129         /* ensure that status polling continues unless
1130          * it has already stopped */
1131         if (instance->poll_state == CXPOLL_STOPPED)
1132                 is_polling = 0;
1133
1134         /* stop polling from being stopped or started */
1135         instance->poll_state = CXPOLL_SHUTDOWN;
1136         mutex_unlock(&instance->poll_state_serialize);
1137
1138         if (is_polling)
1139                 cancel_rearming_delayed_work(&instance->poll_work);
1140
1141         usb_kill_urb(instance->snd_urb);
1142         usb_kill_urb(instance->rcv_urb);
1143         usb_free_urb(instance->snd_urb);
1144         usb_free_urb(instance->rcv_urb);
1145
1146         free_page((unsigned long) instance->snd_buf);
1147         free_page((unsigned long) instance->rcv_buf);
1148
1149         #define CXACRU_DEVICE_REMOVE_FILE(_name) \
1150                 device_remove_file(&intf->dev, &dev_attr_##_name);
1151         CXACRU_ALL_FILES(REMOVE);
1152         #undef CXACRU_DEVICE_REVOVE_FILE
1153
1154         kfree(instance);
1155
1156         usbatm_instance->driver_data = NULL;
1157 }
1158
1159 static const struct cxacru_modem_type cxacru_cafe = {
1160         .pll_f_clk = 0x02d874df,
1161         .pll_b_clk = 0x0196a51a,
1162         .boot_rom_patch = 1,
1163 };
1164
1165 static const struct cxacru_modem_type cxacru_cb00 = {
1166         .pll_f_clk = 0x5,
1167         .pll_b_clk = 0x3,
1168         .boot_rom_patch = 0,
1169 };
1170
1171 static const struct usb_device_id cxacru_usb_ids[] = {
1172         { /* V = Conexant                       P = ADSL modem (Euphrates project)      */
1173                 USB_DEVICE(0x0572, 0xcafe),     .driver_info = (unsigned long) &cxacru_cafe
1174         },
1175         { /* V = Conexant                       P = ADSL modem (Hasbani project)        */
1176                 USB_DEVICE(0x0572, 0xcb00),     .driver_info = (unsigned long) &cxacru_cb00
1177         },
1178         { /* V = Conexant                       P = ADSL modem                          */
1179                 USB_DEVICE(0x0572, 0xcb01),     .driver_info = (unsigned long) &cxacru_cb00
1180         },
1181         { /* V = Conexant                       P = ADSL modem (Well PTI-800) */
1182                 USB_DEVICE(0x0572, 0xcb02),     .driver_info = (unsigned long) &cxacru_cb00
1183         },
1184         { /* V = Conexant                       P = ADSL modem                          */
1185                 USB_DEVICE(0x0572, 0xcb06),     .driver_info = (unsigned long) &cxacru_cb00
1186         },
1187         { /* V = Conexant                       P = ADSL modem (ZTE ZXDSL 852)          */
1188                 USB_DEVICE(0x0572, 0xcb07),     .driver_info = (unsigned long) &cxacru_cb00
1189         },
1190         { /* V = Olitec                         P = ADSL modem version 2                */
1191                 USB_DEVICE(0x08e3, 0x0100),     .driver_info = (unsigned long) &cxacru_cafe
1192         },
1193         { /* V = Olitec                         P = ADSL modem version 3                */
1194                 USB_DEVICE(0x08e3, 0x0102),     .driver_info = (unsigned long) &cxacru_cb00
1195         },
1196         { /* V = Trust/Amigo Technology Co.     P = AMX-CA86U                           */
1197                 USB_DEVICE(0x0eb0, 0x3457),     .driver_info = (unsigned long) &cxacru_cafe
1198         },
1199         { /* V = Zoom                           P = 5510                                */
1200                 USB_DEVICE(0x1803, 0x5510),     .driver_info = (unsigned long) &cxacru_cb00
1201         },
1202         { /* V = Draytek                        P = Vigor 318                           */
1203                 USB_DEVICE(0x0675, 0x0200),     .driver_info = (unsigned long) &cxacru_cb00
1204         },
1205         { /* V = Zyxel                          P = 630-C1 aka OMNI ADSL USB (Annex A)  */
1206                 USB_DEVICE(0x0586, 0x330a),     .driver_info = (unsigned long) &cxacru_cb00
1207         },
1208         { /* V = Zyxel                          P = 630-C3 aka OMNI ADSL USB (Annex B)  */
1209                 USB_DEVICE(0x0586, 0x330b),     .driver_info = (unsigned long) &cxacru_cb00
1210         },
1211         { /* V = Aethra                         P = Starmodem UM1020                    */
1212                 USB_DEVICE(0x0659, 0x0020),     .driver_info = (unsigned long) &cxacru_cb00
1213         },
1214         { /* V = Aztech Systems                 P = ? AKA Pirelli AUA-010               */
1215                 USB_DEVICE(0x0509, 0x0812),     .driver_info = (unsigned long) &cxacru_cb00
1216         },
1217         { /* V = Netopia                        P = Cayman 3341(Annex A)/3351(Annex B)  */
1218                 USB_DEVICE(0x100d, 0xcb01),     .driver_info = (unsigned long) &cxacru_cb00
1219         },
1220         { /* V = Netopia                        P = Cayman 3342(Annex A)/3352(Annex B)  */
1221                 USB_DEVICE(0x100d, 0x3342),     .driver_info = (unsigned long) &cxacru_cb00
1222         },
1223         {}
1224 };
1225
1226 MODULE_DEVICE_TABLE(usb, cxacru_usb_ids);
1227
1228 static struct usbatm_driver cxacru_driver = {
1229         .driver_name    = cxacru_driver_name,
1230         .bind           = cxacru_bind,
1231         .heavy_init     = cxacru_heavy_init,
1232         .unbind         = cxacru_unbind,
1233         .atm_start      = cxacru_atm_start,
1234         .bulk_in        = CXACRU_EP_DATA,
1235         .bulk_out       = CXACRU_EP_DATA,
1236         .rx_padding     = 3,
1237         .tx_padding     = 11,
1238 };
1239
1240 static int cxacru_usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
1241 {
1242         return usbatm_usb_probe(intf, id, &cxacru_driver);
1243 }
1244
1245 static struct usb_driver cxacru_usb_driver = {
1246         .name           = cxacru_driver_name,
1247         .probe          = cxacru_usb_probe,
1248         .disconnect     = usbatm_usb_disconnect,
1249         .id_table       = cxacru_usb_ids
1250 };
1251
1252 static int __init cxacru_init(void)
1253 {
1254         return usb_register(&cxacru_usb_driver);
1255 }
1256
1257 static void __exit cxacru_cleanup(void)
1258 {
1259         usb_deregister(&cxacru_usb_driver);
1260 }
1261
1262 module_init(cxacru_init);
1263 module_exit(cxacru_cleanup);
1264
1265 MODULE_AUTHOR(DRIVER_AUTHOR);
1266 MODULE_DESCRIPTION(DRIVER_DESC);
1267 MODULE_LICENSE("GPL");
1268 MODULE_VERSION(DRIVER_VERSION);