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1b0e6146 DS |
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 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of the GNU General Public License as published by the Free | |
10 | * Software Foundation; either version 2 of the License, or (at your option) | |
11 | * any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
14 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
15 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
16 | * more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License along with | |
19 | * this program; if not, write to the Free Software Foundation, Inc., 59 | |
20 | * Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
21 | * | |
22 | ******************************************************************************/ | |
23 | ||
24 | /* | |
25 | * Credit is due for Josep Comas, who created the original patch to speedtch.c | |
26 | * to support the different padding used by the AccessRunner (now generalized | |
27 | * into usbatm), and the userspace firmware loading utility. | |
28 | */ | |
29 | ||
30 | #include <linux/module.h> | |
31 | #include <linux/moduleparam.h> | |
32 | #include <linux/kernel.h> | |
33 | #include <linux/timer.h> | |
34 | #include <linux/errno.h> | |
35 | #include <linux/slab.h> | |
36 | #include <linux/init.h> | |
37 | #include <linux/device.h> /* FIXME: linux/firmware.h should include it itself */ | |
38 | #include <linux/firmware.h> | |
ab3c81ff | 39 | #include <linux/mutex.h> |
1b0e6146 DS |
40 | |
41 | #include "usbatm.h" | |
42 | ||
43 | #define DRIVER_AUTHOR "Roman Kagan, David Woodhouse, Duncan Sands" | |
44 | #define DRIVER_VERSION "0.2" | |
45 | #define DRIVER_DESC "Conexant AccessRunner ADSL USB modem driver" | |
46 | ||
47 | static const char cxacru_driver_name[] = "cxacru"; | |
48 | ||
49 | #define CXACRU_EP_CMD 0x01 /* Bulk/interrupt in/out */ | |
50 | #define CXACRU_EP_DATA 0x02 /* Bulk in/out */ | |
51 | ||
52 | #define CMD_PACKET_SIZE 64 /* Should be maxpacket(ep)? */ | |
53 | ||
54 | /* Addresses */ | |
55 | #define PLLFCLK_ADDR 0x00350068 | |
56 | #define PLLBCLK_ADDR 0x0035006c | |
57 | #define SDRAMEN_ADDR 0x00350010 | |
58 | #define FW_ADDR 0x00801000 | |
59 | #define BR_ADDR 0x00180600 | |
60 | #define SIG_ADDR 0x00180500 | |
61 | #define BR_STACK_ADDR 0x00187f10 | |
62 | ||
63 | /* Values */ | |
64 | #define SDRAM_ENA 0x1 | |
65 | ||
66 | #define CMD_TIMEOUT 2000 /* msecs */ | |
67 | #define POLL_INTERVAL 5000 /* msecs */ | |
68 | ||
69 | /* commands for interaction with the modem through the control channel before | |
70 | * firmware is loaded */ | |
71 | enum cxacru_fw_request { | |
72 | FW_CMD_ERR, | |
73 | FW_GET_VER, | |
74 | FW_READ_MEM, | |
75 | FW_WRITE_MEM, | |
76 | FW_RMW_MEM, | |
77 | FW_CHECKSUM_MEM, | |
78 | FW_GOTO_MEM, | |
79 | }; | |
80 | ||
81 | /* commands for interaction with the modem through the control channel once | |
82 | * firmware is loaded */ | |
83 | enum cxacru_cm_request { | |
84 | CM_REQUEST_UNDEFINED = 0x80, | |
85 | CM_REQUEST_TEST, | |
86 | CM_REQUEST_CHIP_GET_MAC_ADDRESS, | |
87 | CM_REQUEST_CHIP_GET_DP_VERSIONS, | |
88 | CM_REQUEST_CHIP_ADSL_LINE_START, | |
89 | CM_REQUEST_CHIP_ADSL_LINE_STOP, | |
90 | CM_REQUEST_CHIP_ADSL_LINE_GET_STATUS, | |
91 | CM_REQUEST_CHIP_ADSL_LINE_GET_SPEED, | |
92 | CM_REQUEST_CARD_INFO_GET, | |
93 | CM_REQUEST_CARD_DATA_GET, | |
94 | CM_REQUEST_CARD_DATA_SET, | |
95 | CM_REQUEST_COMMAND_HW_IO, | |
96 | CM_REQUEST_INTERFACE_HW_IO, | |
97 | CM_REQUEST_CARD_SERIAL_DATA_PATH_GET, | |
98 | CM_REQUEST_CARD_SERIAL_DATA_PATH_SET, | |
99 | CM_REQUEST_CARD_CONTROLLER_VERSION_GET, | |
100 | CM_REQUEST_CARD_GET_STATUS, | |
101 | CM_REQUEST_CARD_GET_MAC_ADDRESS, | |
102 | CM_REQUEST_CARD_GET_DATA_LINK_STATUS, | |
103 | CM_REQUEST_MAX, | |
104 | }; | |
105 | ||
106 | /* reply codes to the commands above */ | |
107 | enum cxacru_cm_status { | |
108 | CM_STATUS_UNDEFINED, | |
109 | CM_STATUS_SUCCESS, | |
110 | CM_STATUS_ERROR, | |
111 | CM_STATUS_UNSUPPORTED, | |
112 | CM_STATUS_UNIMPLEMENTED, | |
113 | CM_STATUS_PARAMETER_ERROR, | |
114 | CM_STATUS_DBG_LOOPBACK, | |
115 | CM_STATUS_MAX, | |
116 | }; | |
117 | ||
118 | /* indices into CARD_INFO_GET return array */ | |
119 | enum cxacru_info_idx { | |
120 | CXINF_DOWNSTREAM_RATE, | |
121 | CXINF_UPSTREAM_RATE, | |
122 | CXINF_LINK_STATUS, | |
123 | CXINF_LINE_STATUS, | |
124 | CXINF_MAC_ADDRESS_HIGH, | |
125 | CXINF_MAC_ADDRESS_LOW, | |
126 | CXINF_UPSTREAM_SNR_MARGIN, | |
127 | CXINF_DOWNSTREAM_SNR_MARGIN, | |
128 | CXINF_UPSTREAM_ATTENUATION, | |
129 | CXINF_DOWNSTREAM_ATTENUATION, | |
130 | CXINF_TRANSMITTER_POWER, | |
131 | CXINF_UPSTREAM_BITS_PER_FRAME, | |
132 | CXINF_DOWNSTREAM_BITS_PER_FRAME, | |
133 | CXINF_STARTUP_ATTEMPTS, | |
134 | CXINF_UPSTREAM_CRC_ERRORS, | |
135 | CXINF_DOWNSTREAM_CRC_ERRORS, | |
136 | CXINF_UPSTREAM_FEC_ERRORS, | |
137 | CXINF_DOWNSTREAM_FEC_ERRORS, | |
138 | CXINF_UPSTREAM_HEC_ERRORS, | |
139 | CXINF_DOWNSTREAM_HEC_ERRORS, | |
140 | CXINF_LINE_STARTABLE, | |
141 | CXINF_MODULATION, | |
142 | CXINF_ADSL_HEADEND, | |
143 | CXINF_ADSL_HEADEND_ENVIRONMENT, | |
144 | CXINF_CONTROLLER_VERSION, | |
145 | /* dunno what the missing two mean */ | |
146 | CXINF_MAX = 0x1c, | |
147 | }; | |
148 | ||
149 | struct cxacru_modem_type { | |
150 | u32 pll_f_clk; | |
151 | u32 pll_b_clk; | |
152 | int boot_rom_patch; | |
153 | }; | |
154 | ||
155 | struct cxacru_data { | |
156 | struct usbatm_data *usbatm; | |
157 | ||
158 | const struct cxacru_modem_type *modem_type; | |
159 | ||
160 | int line_status; | |
c4028958 | 161 | struct delayed_work poll_work; |
1b0e6146 DS |
162 | |
163 | /* contol handles */ | |
ab3c81ff | 164 | struct mutex cm_serialize; |
1b0e6146 DS |
165 | u8 *rcv_buf; |
166 | u8 *snd_buf; | |
167 | struct urb *rcv_urb; | |
168 | struct urb *snd_urb; | |
169 | struct completion rcv_done; | |
170 | struct completion snd_done; | |
171 | }; | |
172 | ||
173 | /* the following three functions are stolen from drivers/usb/core/message.c */ | |
7d12e780 | 174 | static void cxacru_blocking_completion(struct urb *urb) |
1b0e6146 DS |
175 | { |
176 | complete((struct completion *)urb->context); | |
177 | } | |
178 | ||
179 | static void cxacru_timeout_kill(unsigned long data) | |
180 | { | |
181 | usb_unlink_urb((struct urb *) data); | |
182 | } | |
183 | ||
184 | static int cxacru_start_wait_urb(struct urb *urb, struct completion *done, | |
185 | int* actual_length) | |
186 | { | |
187 | struct timer_list timer; | |
188 | int status; | |
189 | ||
190 | init_timer(&timer); | |
191 | timer.expires = jiffies + msecs_to_jiffies(CMD_TIMEOUT); | |
192 | timer.data = (unsigned long) urb; | |
193 | timer.function = cxacru_timeout_kill; | |
194 | add_timer(&timer); | |
195 | wait_for_completion(done); | |
196 | status = urb->status; | |
197 | if (status == -ECONNRESET) | |
198 | status = -ETIMEDOUT; | |
199 | del_timer_sync(&timer); | |
200 | ||
201 | if (actual_length) | |
202 | *actual_length = urb->actual_length; | |
203 | return status; | |
204 | } | |
205 | ||
206 | static int cxacru_cm(struct cxacru_data *instance, enum cxacru_cm_request cm, | |
207 | u8 *wdata, int wsize, u8 *rdata, int rsize) | |
208 | { | |
209 | int ret, actlen; | |
210 | int offb, offd; | |
211 | const int stride = CMD_PACKET_SIZE - 4; | |
212 | u8 *wbuf = instance->snd_buf; | |
213 | u8 *rbuf = instance->rcv_buf; | |
214 | int wbuflen = ((wsize - 1) / stride + 1) * CMD_PACKET_SIZE; | |
215 | int rbuflen = ((rsize - 1) / stride + 1) * CMD_PACKET_SIZE; | |
216 | ||
217 | if (wbuflen > PAGE_SIZE || rbuflen > PAGE_SIZE) { | |
218 | dbg("too big transfer requested"); | |
219 | ret = -ENOMEM; | |
220 | goto fail; | |
221 | } | |
222 | ||
ab3c81ff | 223 | mutex_lock(&instance->cm_serialize); |
1b0e6146 DS |
224 | |
225 | /* submit reading urb before the writing one */ | |
226 | init_completion(&instance->rcv_done); | |
227 | ret = usb_submit_urb(instance->rcv_urb, GFP_KERNEL); | |
228 | if (ret < 0) { | |
229 | dbg("submitting read urb for cm %#x failed", cm); | |
230 | ret = ret; | |
231 | goto fail; | |
232 | } | |
233 | ||
234 | memset(wbuf, 0, wbuflen); | |
235 | /* handle wsize == 0 */ | |
236 | wbuf[0] = cm; | |
237 | for (offb = offd = 0; offd < wsize; offd += stride, offb += CMD_PACKET_SIZE) { | |
238 | wbuf[offb] = cm; | |
239 | memcpy(wbuf + offb + 4, wdata + offd, min_t(int, stride, wsize - offd)); | |
240 | } | |
241 | ||
242 | instance->snd_urb->transfer_buffer_length = wbuflen; | |
243 | init_completion(&instance->snd_done); | |
244 | ret = usb_submit_urb(instance->snd_urb, GFP_KERNEL); | |
245 | if (ret < 0) { | |
246 | dbg("submitting write urb for cm %#x failed", cm); | |
247 | ret = ret; | |
248 | goto fail; | |
249 | } | |
250 | ||
251 | ret = cxacru_start_wait_urb(instance->snd_urb, &instance->snd_done, NULL); | |
252 | if (ret < 0) { | |
253 | dbg("sending cm %#x failed", cm); | |
254 | ret = ret; | |
255 | goto fail; | |
256 | } | |
257 | ||
258 | ret = cxacru_start_wait_urb(instance->rcv_urb, &instance->rcv_done, &actlen); | |
259 | if (ret < 0) { | |
260 | dbg("receiving cm %#x failed", cm); | |
261 | ret = ret; | |
262 | goto fail; | |
263 | } | |
264 | if (actlen % CMD_PACKET_SIZE || !actlen) { | |
265 | dbg("response is not a positive multiple of %d: %#x", | |
266 | CMD_PACKET_SIZE, actlen); | |
267 | ret = -EIO; | |
268 | goto fail; | |
269 | } | |
270 | ||
271 | /* check the return status and copy the data to the output buffer, if needed */ | |
272 | for (offb = offd = 0; offd < rsize && offb < actlen; offb += CMD_PACKET_SIZE) { | |
273 | if (rbuf[offb] != cm) { | |
274 | dbg("wrong cm %#x in response", rbuf[offb]); | |
275 | ret = -EIO; | |
276 | goto fail; | |
277 | } | |
278 | if (rbuf[offb + 1] != CM_STATUS_SUCCESS) { | |
279 | dbg("response failed: %#x", rbuf[offb + 1]); | |
280 | ret = -EIO; | |
281 | goto fail; | |
282 | } | |
283 | if (offd >= rsize) | |
284 | break; | |
285 | memcpy(rdata + offd, rbuf + offb + 4, min_t(int, stride, rsize - offd)); | |
286 | offd += stride; | |
287 | } | |
288 | ||
289 | ret = offd; | |
290 | dbg("cm %#x", cm); | |
291 | fail: | |
ab3c81ff | 292 | mutex_unlock(&instance->cm_serialize); |
1b0e6146 DS |
293 | return ret; |
294 | } | |
295 | ||
296 | static int cxacru_cm_get_array(struct cxacru_data *instance, enum cxacru_cm_request cm, | |
297 | u32 *data, int size) | |
298 | { | |
299 | int ret, len; | |
300 | u32 *buf; | |
301 | int offb, offd; | |
302 | const int stride = CMD_PACKET_SIZE / (4 * 2) - 1; | |
303 | int buflen = ((size - 1) / stride + 1 + size * 2) * 4; | |
304 | ||
305 | buf = kmalloc(buflen, GFP_KERNEL); | |
306 | if (!buf) | |
307 | return -ENOMEM; | |
308 | ||
309 | ret = cxacru_cm(instance, cm, NULL, 0, (u8 *) buf, buflen); | |
310 | if (ret < 0) | |
311 | goto cleanup; | |
312 | ||
313 | /* len > 0 && len % 4 == 0 guaranteed by cxacru_cm() */ | |
314 | len = ret / 4; | |
315 | for (offb = 0; offb < len; ) { | |
316 | int l = le32_to_cpu(buf[offb++]); | |
317 | if (l > stride || l > (len - offb) / 2) { | |
318 | dbg("wrong data length %#x in response", l); | |
319 | ret = -EIO; | |
320 | goto cleanup; | |
321 | } | |
322 | while (l--) { | |
323 | offd = le32_to_cpu(buf[offb++]); | |
324 | if (offd >= size) { | |
325 | dbg("wrong index %#x in response", offd); | |
326 | ret = -EIO; | |
327 | goto cleanup; | |
328 | } | |
329 | data[offd] = le32_to_cpu(buf[offb++]); | |
330 | } | |
331 | } | |
332 | ||
333 | ret = 0; | |
334 | ||
335 | cleanup: | |
336 | kfree(buf); | |
337 | return ret; | |
338 | } | |
339 | ||
340 | static int cxacru_card_status(struct cxacru_data *instance) | |
341 | { | |
342 | int ret = cxacru_cm(instance, CM_REQUEST_CARD_GET_STATUS, NULL, 0, NULL, 0); | |
343 | if (ret < 0) { /* firmware not loaded */ | |
344 | dbg("cxacru_adsl_start: CARD_GET_STATUS returned %d", ret); | |
345 | return ret; | |
346 | } | |
347 | return 0; | |
348 | } | |
349 | ||
c4028958 | 350 | static void cxacru_poll_status(struct work_struct *work); |
1b0e6146 DS |
351 | |
352 | static int cxacru_atm_start(struct usbatm_data *usbatm_instance, | |
353 | struct atm_dev *atm_dev) | |
354 | { | |
355 | struct cxacru_data *instance = usbatm_instance->driver_data; | |
1b0e6146 DS |
356 | /* |
357 | struct atm_dev *atm_dev = usbatm_instance->atm_dev; | |
358 | */ | |
359 | int ret; | |
360 | ||
361 | dbg("cxacru_atm_start"); | |
362 | ||
363 | /* Read MAC address */ | |
364 | ret = cxacru_cm(instance, CM_REQUEST_CARD_GET_MAC_ADDRESS, NULL, 0, | |
365 | atm_dev->esi, sizeof(atm_dev->esi)); | |
366 | if (ret < 0) { | |
0ec3c7e8 | 367 | atm_err(usbatm_instance, "cxacru_atm_start: CARD_GET_MAC_ADDRESS returned %d\n", ret); |
1b0e6146 DS |
368 | return ret; |
369 | } | |
370 | ||
371 | /* start ADSL */ | |
372 | ret = cxacru_cm(instance, CM_REQUEST_CHIP_ADSL_LINE_START, NULL, 0, NULL, 0); | |
373 | if (ret < 0) { | |
0ec3c7e8 | 374 | atm_err(usbatm_instance, "cxacru_atm_start: CHIP_ADSL_LINE_START returned %d\n", ret); |
1b0e6146 DS |
375 | return ret; |
376 | } | |
377 | ||
378 | /* Start status polling */ | |
c4028958 | 379 | cxacru_poll_status(&instance->poll_work.work); |
1b0e6146 DS |
380 | return 0; |
381 | } | |
382 | ||
c4028958 | 383 | static void cxacru_poll_status(struct work_struct *work) |
1b0e6146 | 384 | { |
c4028958 DH |
385 | struct cxacru_data *instance = |
386 | container_of(work, struct cxacru_data, poll_work.work); | |
1b0e6146 | 387 | u32 buf[CXINF_MAX] = {}; |
0ec3c7e8 DS |
388 | struct usbatm_data *usbatm = instance->usbatm; |
389 | struct atm_dev *atm_dev = usbatm->atm_dev; | |
1b0e6146 DS |
390 | int ret; |
391 | ||
392 | ret = cxacru_cm_get_array(instance, CM_REQUEST_CARD_INFO_GET, buf, CXINF_MAX); | |
393 | if (ret < 0) { | |
0ec3c7e8 | 394 | atm_warn(usbatm, "poll status: error %d\n", ret); |
1b0e6146 DS |
395 | goto reschedule; |
396 | } | |
397 | ||
398 | if (instance->line_status == buf[CXINF_LINE_STATUS]) | |
399 | goto reschedule; | |
400 | ||
401 | instance->line_status = buf[CXINF_LINE_STATUS]; | |
402 | switch (instance->line_status) { | |
403 | case 0: | |
404 | atm_dev->signal = ATM_PHY_SIG_LOST; | |
0ec3c7e8 | 405 | atm_info(usbatm, "ADSL line: down\n"); |
1b0e6146 DS |
406 | break; |
407 | ||
408 | case 1: | |
409 | atm_dev->signal = ATM_PHY_SIG_LOST; | |
0ec3c7e8 | 410 | atm_info(usbatm, "ADSL line: attempting to activate\n"); |
1b0e6146 DS |
411 | break; |
412 | ||
413 | case 2: | |
414 | atm_dev->signal = ATM_PHY_SIG_LOST; | |
0ec3c7e8 | 415 | atm_info(usbatm, "ADSL line: training\n"); |
1b0e6146 DS |
416 | break; |
417 | ||
418 | case 3: | |
419 | atm_dev->signal = ATM_PHY_SIG_LOST; | |
0ec3c7e8 | 420 | atm_info(usbatm, "ADSL line: channel analysis\n"); |
1b0e6146 DS |
421 | break; |
422 | ||
423 | case 4: | |
424 | atm_dev->signal = ATM_PHY_SIG_LOST; | |
0ec3c7e8 | 425 | atm_info(usbatm, "ADSL line: exchange\n"); |
1b0e6146 DS |
426 | break; |
427 | ||
428 | case 5: | |
429 | atm_dev->link_rate = buf[CXINF_DOWNSTREAM_RATE] * 1000 / 424; | |
430 | atm_dev->signal = ATM_PHY_SIG_FOUND; | |
431 | ||
0ec3c7e8 | 432 | atm_info(usbatm, "ADSL line: up (%d kb/s down | %d kb/s up)\n", |
1b0e6146 DS |
433 | buf[CXINF_DOWNSTREAM_RATE], buf[CXINF_UPSTREAM_RATE]); |
434 | break; | |
435 | ||
436 | case 6: | |
437 | atm_dev->signal = ATM_PHY_SIG_LOST; | |
0ec3c7e8 | 438 | atm_info(usbatm, "ADSL line: waiting\n"); |
1b0e6146 DS |
439 | break; |
440 | ||
441 | case 7: | |
442 | atm_dev->signal = ATM_PHY_SIG_LOST; | |
0ec3c7e8 | 443 | atm_info(usbatm, "ADSL line: initializing\n"); |
1b0e6146 DS |
444 | break; |
445 | ||
446 | default: | |
447 | atm_dev->signal = ATM_PHY_SIG_UNKNOWN; | |
0ec3c7e8 | 448 | atm_info(usbatm, "Unknown line state %02x\n", instance->line_status); |
1b0e6146 DS |
449 | break; |
450 | } | |
451 | reschedule: | |
452 | schedule_delayed_work(&instance->poll_work, msecs_to_jiffies(POLL_INTERVAL)); | |
453 | } | |
454 | ||
455 | static int cxacru_fw(struct usb_device *usb_dev, enum cxacru_fw_request fw, | |
456 | u8 code1, u8 code2, u32 addr, u8 *data, int size) | |
457 | { | |
458 | int ret; | |
459 | u8 *buf; | |
460 | int offd, offb; | |
461 | const int stride = CMD_PACKET_SIZE - 8; | |
462 | ||
463 | buf = (u8 *) __get_free_page(GFP_KERNEL); | |
464 | if (!buf) | |
465 | return -ENOMEM; | |
466 | ||
467 | offb = offd = 0; | |
468 | do { | |
469 | int l = min_t(int, stride, size - offd); | |
470 | buf[offb++] = fw; | |
471 | buf[offb++] = l; | |
472 | buf[offb++] = code1; | |
473 | buf[offb++] = code2; | |
474 | *((u32 *) (buf + offb)) = cpu_to_le32(addr); | |
475 | offb += 4; | |
476 | addr += l; | |
477 | if(l) | |
478 | memcpy(buf + offb, data + offd, l); | |
479 | if (l < stride) | |
480 | memset(buf + offb + l, 0, stride - l); | |
481 | offb += stride; | |
482 | offd += stride; | |
483 | if ((offb >= PAGE_SIZE) || (offd >= size)) { | |
484 | ret = usb_bulk_msg(usb_dev, usb_sndbulkpipe(usb_dev, CXACRU_EP_CMD), | |
485 | buf, offb, NULL, CMD_TIMEOUT); | |
486 | if (ret < 0) { | |
487 | dbg("sending fw %#x failed", fw); | |
488 | goto cleanup; | |
489 | } | |
490 | offb = 0; | |
491 | } | |
492 | } while(offd < size); | |
493 | dbg("sent fw %#x", fw); | |
494 | ||
495 | ret = 0; | |
496 | ||
497 | cleanup: | |
498 | free_page((unsigned long) buf); | |
499 | return ret; | |
500 | } | |
501 | ||
502 | static void cxacru_upload_firmware(struct cxacru_data *instance, | |
503 | const struct firmware *fw, | |
504 | const struct firmware *bp, | |
505 | const struct firmware *cf) | |
506 | { | |
507 | int ret; | |
508 | int off; | |
0ec3c7e8 DS |
509 | struct usbatm_data *usbatm = instance->usbatm; |
510 | struct usb_device *usb_dev = usbatm->usb_dev; | |
1b0e6146 DS |
511 | u16 signature[] = { usb_dev->descriptor.idVendor, usb_dev->descriptor.idProduct }; |
512 | u32 val; | |
513 | ||
514 | dbg("cxacru_upload_firmware"); | |
515 | ||
516 | /* FirmwarePllFClkValue */ | |
517 | val = cpu_to_le32(instance->modem_type->pll_f_clk); | |
518 | ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, PLLFCLK_ADDR, (u8 *) &val, 4); | |
519 | if (ret) { | |
0ec3c7e8 | 520 | usb_err(usbatm, "FirmwarePllFClkValue failed: %d\n", ret); |
1b0e6146 DS |
521 | return; |
522 | } | |
523 | ||
524 | /* FirmwarePllBClkValue */ | |
525 | val = cpu_to_le32(instance->modem_type->pll_b_clk); | |
526 | ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, PLLBCLK_ADDR, (u8 *) &val, 4); | |
527 | if (ret) { | |
0ec3c7e8 | 528 | usb_err(usbatm, "FirmwarePllBClkValue failed: %d\n", ret); |
1b0e6146 DS |
529 | return; |
530 | } | |
531 | ||
532 | /* Enable SDRAM */ | |
533 | val = cpu_to_le32(SDRAM_ENA); | |
534 | ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, SDRAMEN_ADDR, (u8 *) &val, 4); | |
535 | if (ret) { | |
0ec3c7e8 | 536 | usb_err(usbatm, "Enable SDRAM failed: %d\n", ret); |
1b0e6146 DS |
537 | return; |
538 | } | |
539 | ||
540 | /* Firmware */ | |
541 | ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, FW_ADDR, fw->data, fw->size); | |
542 | if (ret) { | |
0ec3c7e8 | 543 | usb_err(usbatm, "Firmware upload failed: %d\n", ret); |
1b0e6146 DS |
544 | return; |
545 | } | |
546 | ||
547 | /* Boot ROM patch */ | |
548 | if (instance->modem_type->boot_rom_patch) { | |
549 | ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, BR_ADDR, bp->data, bp->size); | |
550 | if (ret) { | |
0ec3c7e8 | 551 | usb_err(usbatm, "Boot ROM patching failed: %d\n", ret); |
1b0e6146 DS |
552 | return; |
553 | } | |
554 | } | |
555 | ||
556 | /* Signature */ | |
557 | ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, SIG_ADDR, (u8 *) signature, 4); | |
558 | if (ret) { | |
0ec3c7e8 | 559 | usb_err(usbatm, "Signature storing failed: %d\n", ret); |
1b0e6146 DS |
560 | return; |
561 | } | |
562 | ||
563 | if (instance->modem_type->boot_rom_patch) { | |
564 | val = cpu_to_le32(BR_ADDR); | |
565 | ret = cxacru_fw(usb_dev, FW_WRITE_MEM, 0x2, 0x0, BR_STACK_ADDR, (u8 *) &val, 4); | |
566 | } | |
567 | else { | |
568 | ret = cxacru_fw(usb_dev, FW_GOTO_MEM, 0x0, 0x0, FW_ADDR, NULL, 0); | |
569 | } | |
570 | if (ret) { | |
0ec3c7e8 | 571 | usb_err(usbatm, "Passing control to firmware failed: %d\n", ret); |
1b0e6146 DS |
572 | return; |
573 | } | |
574 | ||
575 | /* Delay to allow firmware to start up. */ | |
576 | msleep_interruptible(1000); | |
577 | ||
578 | usb_clear_halt(usb_dev, usb_sndbulkpipe(usb_dev, CXACRU_EP_CMD)); | |
579 | usb_clear_halt(usb_dev, usb_rcvbulkpipe(usb_dev, CXACRU_EP_CMD)); | |
580 | usb_clear_halt(usb_dev, usb_sndbulkpipe(usb_dev, CXACRU_EP_DATA)); | |
581 | usb_clear_halt(usb_dev, usb_rcvbulkpipe(usb_dev, CXACRU_EP_DATA)); | |
582 | ||
583 | ret = cxacru_cm(instance, CM_REQUEST_CARD_GET_STATUS, NULL, 0, NULL, 0); | |
584 | if (ret < 0) { | |
0ec3c7e8 | 585 | usb_err(usbatm, "modem failed to initialize: %d\n", ret); |
1b0e6146 DS |
586 | return; |
587 | } | |
588 | ||
589 | /* Load config data (le32), doing one packet at a time */ | |
590 | if (cf) | |
591 | for (off = 0; off < cf->size / 4; ) { | |
592 | u32 buf[CMD_PACKET_SIZE / 4 - 1]; | |
593 | int i, len = min_t(int, cf->size / 4 - off, CMD_PACKET_SIZE / 4 / 2 - 1); | |
594 | buf[0] = cpu_to_le32(len); | |
595 | for (i = 0; i < len; i++, off++) { | |
596 | buf[i * 2 + 1] = cpu_to_le32(off); | |
597 | memcpy(buf + i * 2 + 2, cf->data + off * 4, 4); | |
598 | } | |
599 | ret = cxacru_cm(instance, CM_REQUEST_CARD_DATA_SET, | |
600 | (u8 *) buf, len, NULL, 0); | |
601 | if (ret < 0) { | |
0ec3c7e8 | 602 | usb_err(usbatm, "load config data failed: %d\n", ret); |
1b0e6146 DS |
603 | return; |
604 | } | |
605 | } | |
606 | ||
607 | msleep_interruptible(4000); | |
608 | } | |
609 | ||
610 | static int cxacru_find_firmware(struct cxacru_data *instance, | |
611 | char* phase, const struct firmware **fw_p) | |
612 | { | |
0ec3c7e8 DS |
613 | struct usbatm_data *usbatm = instance->usbatm; |
614 | struct device *dev = &usbatm->usb_intf->dev; | |
1b0e6146 DS |
615 | char buf[16]; |
616 | ||
617 | sprintf(buf, "cxacru-%s.bin", phase); | |
618 | dbg("cxacru_find_firmware: looking for %s", buf); | |
619 | ||
620 | if (request_firmware(fw_p, buf, dev)) { | |
0ec3c7e8 | 621 | usb_dbg(usbatm, "no stage %s firmware found\n", phase); |
1b0e6146 DS |
622 | return -ENOENT; |
623 | } | |
624 | ||
0ec3c7e8 | 625 | usb_info(usbatm, "found firmware %s\n", buf); |
1b0e6146 DS |
626 | |
627 | return 0; | |
628 | } | |
629 | ||
630 | static int cxacru_heavy_init(struct usbatm_data *usbatm_instance, | |
631 | struct usb_interface *usb_intf) | |
632 | { | |
1b0e6146 DS |
633 | const struct firmware *fw, *bp, *cf; |
634 | struct cxacru_data *instance = usbatm_instance->driver_data; | |
635 | ||
636 | int ret = cxacru_find_firmware(instance, "fw", &fw); | |
637 | if (ret) { | |
0ec3c7e8 | 638 | usb_warn(usbatm_instance, "firmware (cxacru-fw.bin) unavailable (system misconfigured?)\n"); |
1b0e6146 DS |
639 | return ret; |
640 | } | |
641 | ||
642 | if (instance->modem_type->boot_rom_patch) { | |
643 | ret = cxacru_find_firmware(instance, "bp", &bp); | |
644 | if (ret) { | |
0ec3c7e8 | 645 | usb_warn(usbatm_instance, "boot ROM patch (cxacru-bp.bin) unavailable (system misconfigured?)\n"); |
1b0e6146 DS |
646 | release_firmware(fw); |
647 | return ret; | |
648 | } | |
649 | } | |
650 | ||
651 | if (cxacru_find_firmware(instance, "cf", &cf)) /* optional */ | |
652 | cf = NULL; | |
653 | ||
654 | cxacru_upload_firmware(instance, fw, bp, cf); | |
655 | ||
656 | if (cf) | |
657 | release_firmware(cf); | |
658 | if (instance->modem_type->boot_rom_patch) | |
659 | release_firmware(bp); | |
660 | release_firmware(fw); | |
661 | ||
662 | ret = cxacru_card_status(instance); | |
663 | if (ret) | |
664 | dbg("modem initialisation failed"); | |
665 | else | |
666 | dbg("done setting up the modem"); | |
667 | ||
668 | return ret; | |
669 | } | |
670 | ||
671 | static int cxacru_bind(struct usbatm_data *usbatm_instance, | |
35644b0c | 672 | struct usb_interface *intf, const struct usb_device_id *id) |
1b0e6146 DS |
673 | { |
674 | struct cxacru_data *instance; | |
675 | struct usb_device *usb_dev = interface_to_usbdev(intf); | |
676 | int ret; | |
677 | ||
678 | /* instance init */ | |
9a734efe | 679 | instance = kzalloc(sizeof(*instance), GFP_KERNEL); |
1b0e6146 DS |
680 | if (!instance) { |
681 | dbg("cxacru_bind: no memory for instance data"); | |
682 | return -ENOMEM; | |
683 | } | |
684 | ||
1b0e6146 DS |
685 | instance->usbatm = usbatm_instance; |
686 | instance->modem_type = (struct cxacru_modem_type *) id->driver_info; | |
687 | ||
688 | instance->rcv_buf = (u8 *) __get_free_page(GFP_KERNEL); | |
689 | if (!instance->rcv_buf) { | |
690 | dbg("cxacru_bind: no memory for rcv_buf"); | |
691 | ret = -ENOMEM; | |
692 | goto fail; | |
693 | } | |
694 | instance->snd_buf = (u8 *) __get_free_page(GFP_KERNEL); | |
695 | if (!instance->snd_buf) { | |
696 | dbg("cxacru_bind: no memory for snd_buf"); | |
697 | ret = -ENOMEM; | |
698 | goto fail; | |
699 | } | |
700 | instance->rcv_urb = usb_alloc_urb(0, GFP_KERNEL); | |
701 | if (!instance->rcv_urb) { | |
702 | dbg("cxacru_bind: no memory for rcv_urb"); | |
703 | ret = -ENOMEM; | |
704 | goto fail; | |
705 | } | |
706 | instance->snd_urb = usb_alloc_urb(0, GFP_KERNEL); | |
707 | if (!instance->snd_urb) { | |
708 | dbg("cxacru_bind: no memory for snd_urb"); | |
709 | ret = -ENOMEM; | |
710 | goto fail; | |
711 | } | |
712 | ||
713 | usb_fill_int_urb(instance->rcv_urb, | |
714 | usb_dev, usb_rcvintpipe(usb_dev, CXACRU_EP_CMD), | |
715 | instance->rcv_buf, PAGE_SIZE, | |
716 | cxacru_blocking_completion, &instance->rcv_done, 1); | |
1b0e6146 DS |
717 | |
718 | usb_fill_int_urb(instance->snd_urb, | |
719 | usb_dev, usb_sndintpipe(usb_dev, CXACRU_EP_CMD), | |
720 | instance->snd_buf, PAGE_SIZE, | |
721 | cxacru_blocking_completion, &instance->snd_done, 4); | |
1b0e6146 | 722 | |
ab3c81ff | 723 | mutex_init(&instance->cm_serialize); |
1b0e6146 | 724 | |
c4028958 | 725 | INIT_DELAYED_WORK(&instance->poll_work, cxacru_poll_status); |
1b0e6146 DS |
726 | |
727 | usbatm_instance->driver_data = instance; | |
728 | ||
35644b0c | 729 | usbatm_instance->flags = (cxacru_card_status(instance) ? 0 : UDSL_SKIP_HEAVY_INIT); |
1b0e6146 DS |
730 | |
731 | return 0; | |
732 | ||
733 | fail: | |
734 | free_page((unsigned long) instance->snd_buf); | |
735 | free_page((unsigned long) instance->rcv_buf); | |
736 | usb_free_urb(instance->snd_urb); | |
737 | usb_free_urb(instance->rcv_urb); | |
738 | kfree(instance); | |
739 | ||
740 | return ret; | |
741 | } | |
742 | ||
743 | static void cxacru_unbind(struct usbatm_data *usbatm_instance, | |
744 | struct usb_interface *intf) | |
745 | { | |
746 | struct cxacru_data *instance = usbatm_instance->driver_data; | |
747 | ||
748 | dbg("cxacru_unbind entered"); | |
749 | ||
750 | if (!instance) { | |
751 | dbg("cxacru_unbind: NULL instance!"); | |
752 | return; | |
753 | } | |
754 | ||
755 | while (!cancel_delayed_work(&instance->poll_work)) | |
756 | flush_scheduled_work(); | |
757 | ||
758 | usb_kill_urb(instance->snd_urb); | |
759 | usb_kill_urb(instance->rcv_urb); | |
760 | usb_free_urb(instance->snd_urb); | |
761 | usb_free_urb(instance->rcv_urb); | |
762 | ||
763 | free_page((unsigned long) instance->snd_buf); | |
764 | free_page((unsigned long) instance->rcv_buf); | |
765 | kfree(instance); | |
766 | ||
767 | usbatm_instance->driver_data = NULL; | |
768 | } | |
769 | ||
770 | static const struct cxacru_modem_type cxacru_cafe = { | |
771 | .pll_f_clk = 0x02d874df, | |
772 | .pll_b_clk = 0x0196a51a, | |
773 | .boot_rom_patch = 1, | |
774 | }; | |
775 | ||
776 | static const struct cxacru_modem_type cxacru_cb00 = { | |
777 | .pll_f_clk = 0x5, | |
778 | .pll_b_clk = 0x3, | |
779 | .boot_rom_patch = 0, | |
780 | }; | |
781 | ||
782 | static const struct usb_device_id cxacru_usb_ids[] = { | |
783 | { /* V = Conexant P = ADSL modem (Euphrates project) */ | |
784 | USB_DEVICE(0x0572, 0xcafe), .driver_info = (unsigned long) &cxacru_cafe | |
785 | }, | |
786 | { /* V = Conexant P = ADSL modem (Hasbani project) */ | |
787 | USB_DEVICE(0x0572, 0xcb00), .driver_info = (unsigned long) &cxacru_cb00 | |
788 | }, | |
789 | { /* V = Conexant P = ADSL modem */ | |
790 | USB_DEVICE(0x0572, 0xcb01), .driver_info = (unsigned long) &cxacru_cb00 | |
791 | }, | |
0ec3c7e8 DS |
792 | { /* V = Conexant P = ADSL modem (Well PTI-800) */ |
793 | USB_DEVICE(0x0572, 0xcb02), .driver_info = (unsigned long) &cxacru_cb00 | |
794 | }, | |
1b0e6146 DS |
795 | { /* V = Conexant P = ADSL modem */ |
796 | USB_DEVICE(0x0572, 0xcb06), .driver_info = (unsigned long) &cxacru_cb00 | |
797 | }, | |
44960af1 DS |
798 | { /* V = Conexant P = ADSL modem (ZTE ZXDSL 852) */ |
799 | USB_DEVICE(0x0572, 0xcb07), .driver_info = (unsigned long) &cxacru_cb00 | |
800 | }, | |
1b0e6146 DS |
801 | { /* V = Olitec P = ADSL modem version 2 */ |
802 | USB_DEVICE(0x08e3, 0x0100), .driver_info = (unsigned long) &cxacru_cafe | |
803 | }, | |
804 | { /* V = Olitec P = ADSL modem version 3 */ | |
805 | USB_DEVICE(0x08e3, 0x0102), .driver_info = (unsigned long) &cxacru_cb00 | |
806 | }, | |
807 | { /* V = Trust/Amigo Technology Co. P = AMX-CA86U */ | |
808 | USB_DEVICE(0x0eb0, 0x3457), .driver_info = (unsigned long) &cxacru_cafe | |
809 | }, | |
810 | { /* V = Zoom P = 5510 */ | |
811 | USB_DEVICE(0x1803, 0x5510), .driver_info = (unsigned long) &cxacru_cb00 | |
812 | }, | |
813 | { /* V = Draytek P = Vigor 318 */ | |
814 | USB_DEVICE(0x0675, 0x0200), .driver_info = (unsigned long) &cxacru_cb00 | |
815 | }, | |
816 | { /* V = Zyxel P = 630-C1 aka OMNI ADSL USB (Annex A) */ | |
817 | USB_DEVICE(0x0586, 0x330a), .driver_info = (unsigned long) &cxacru_cb00 | |
818 | }, | |
819 | { /* V = Zyxel P = 630-C3 aka OMNI ADSL USB (Annex B) */ | |
820 | USB_DEVICE(0x0586, 0x330b), .driver_info = (unsigned long) &cxacru_cb00 | |
821 | }, | |
822 | { /* V = Aethra P = Starmodem UM1020 */ | |
823 | USB_DEVICE(0x0659, 0x0020), .driver_info = (unsigned long) &cxacru_cb00 | |
824 | }, | |
825 | { /* V = Aztech Systems P = ? AKA Pirelli AUA-010 */ | |
826 | USB_DEVICE(0x0509, 0x0812), .driver_info = (unsigned long) &cxacru_cb00 | |
827 | }, | |
828 | { /* V = Netopia P = Cayman 3341(Annex A)/3351(Annex B) */ | |
829 | USB_DEVICE(0x100d, 0xcb01), .driver_info = (unsigned long) &cxacru_cb00 | |
830 | }, | |
831 | { /* V = Netopia P = Cayman 3342(Annex A)/3352(Annex B) */ | |
832 | USB_DEVICE(0x100d, 0x3342), .driver_info = (unsigned long) &cxacru_cb00 | |
833 | }, | |
834 | {} | |
835 | }; | |
836 | ||
837 | MODULE_DEVICE_TABLE(usb, cxacru_usb_ids); | |
838 | ||
839 | static struct usbatm_driver cxacru_driver = { | |
1b0e6146 DS |
840 | .driver_name = cxacru_driver_name, |
841 | .bind = cxacru_bind, | |
842 | .heavy_init = cxacru_heavy_init, | |
843 | .unbind = cxacru_unbind, | |
844 | .atm_start = cxacru_atm_start, | |
80aae7a1 DS |
845 | .bulk_in = CXACRU_EP_DATA, |
846 | .bulk_out = CXACRU_EP_DATA, | |
1b0e6146 DS |
847 | .rx_padding = 3, |
848 | .tx_padding = 11, | |
849 | }; | |
850 | ||
851 | static int cxacru_usb_probe(struct usb_interface *intf, const struct usb_device_id *id) | |
852 | { | |
853 | return usbatm_usb_probe(intf, id, &cxacru_driver); | |
854 | } | |
855 | ||
856 | static struct usb_driver cxacru_usb_driver = { | |
1b0e6146 DS |
857 | .name = cxacru_driver_name, |
858 | .probe = cxacru_usb_probe, | |
859 | .disconnect = usbatm_usb_disconnect, | |
860 | .id_table = cxacru_usb_ids | |
861 | }; | |
862 | ||
863 | static int __init cxacru_init(void) | |
864 | { | |
865 | return usb_register(&cxacru_usb_driver); | |
866 | } | |
867 | ||
868 | static void __exit cxacru_cleanup(void) | |
869 | { | |
870 | usb_deregister(&cxacru_usb_driver); | |
871 | } | |
872 | ||
873 | module_init(cxacru_init); | |
874 | module_exit(cxacru_cleanup); | |
875 | ||
876 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
877 | MODULE_DESCRIPTION(DRIVER_DESC); | |
878 | MODULE_LICENSE("GPL"); | |
879 | MODULE_VERSION(DRIVER_VERSION); |