1 /*
2 * Copyright (C) 2005-2006 Micronas USA Inc.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License (Version 2) as
6 * published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 */
13
14 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
15
16 #include <linux/module.h>
17 #include <linux/kernel.h>
18 #include <linux/wait.h>
19 #include <linux/list.h>
20 #include <linux/slab.h>
21 #include <linux/time.h>
22 #include <linux/mm.h>
23 #include <linux/usb.h>
24 #include <linux/i2c.h>
25 #include <asm/byteorder.h>
26 #include <media/saa7115.h>
27 #include <media/tuner.h>
28 #include <media/uda1342.h>
29
30 #include "go7007-priv.h"
31
32 static unsigned int assume_endura;
33 module_param(assume_endura, int, 0644);
34 MODULE_PARM_DESC(assume_endura,
35 "when probing fails, hardware is a Pelco Endura");
36
37 /* #define GO7007_I2C_DEBUG */ /* for debugging the EZ-USB I2C adapter */
38
39 #define HPI_STATUS_ADDR 0xFFF4
40 #define INT_PARAM_ADDR 0xFFF6
41 #define INT_INDEX_ADDR 0xFFF8
42
43 /*
44 * Pipes on EZ-USB interface:
45 * 0 snd - Control
46 * 0 rcv - Control
47 * 2 snd - Download firmware (control)
48 * 4 rcv - Read Interrupt (interrupt)
49 * 6 rcv - Read Video (bulk)
50 * 8 rcv - Read Audio (bulk)
51 */
52
53 #define GO7007_USB_EZUSB (1<<0)
54 #define GO7007_USB_EZUSB_I2C (1<<1)
55
56 struct go7007_usb_board {
57 unsigned int flags;
58 struct go7007_board_info main_info;
59 };
60
61 struct go7007_usb {
62 const struct go7007_usb_board *board;
63 struct mutex i2c_lock;
64 struct usb_device *usbdev;
65 struct urb *video_urbs[8];
66 struct urb *audio_urbs[8];
67 struct urb *intr_urb;
68 };
69
70 /*********************** Product specification data ***********************/
71
72 static const struct go7007_usb_board board_matrix_ii = {
73 .flags = GO7007_USB_EZUSB,
74 .main_info = {
75 .flags = GO7007_BOARD_HAS_AUDIO |
76 GO7007_BOARD_USE_ONBOARD_I2C,
77 .audio_flags = GO7007_AUDIO_I2S_MODE_1 |
78 GO7007_AUDIO_WORD_16,
79 .audio_rate = 48000,
80 .audio_bclk_div = 8,
81 .audio_main_div = 2,
82 .hpi_buffer_cap = 7,
83 .sensor_flags = GO7007_SENSOR_656 |
84 GO7007_SENSOR_VALID_ENABLE |
85 GO7007_SENSOR_TV |
86 GO7007_SENSOR_SAA7115 |
87 GO7007_SENSOR_VBI |
88 GO7007_SENSOR_SCALING,
89 .num_i2c_devs = 1,
90 .i2c_devs = {
91 {
92 .type = "saa7115",
93 .addr = 0x20,
94 .is_video = 1,
95 },
96 },
97 .num_inputs = 2,
98 .inputs = {
99 {
100 .video_input = 0,
101 .name = "Composite",
102 },
103 {
104 .video_input = 9,
105 .name = "S-Video",
106 },
107 },
108 .video_config = SAA7115_IDQ_IS_DEFAULT,
109 },
110 };
111
112 static const struct go7007_usb_board board_matrix_reload = {
113 .flags = GO7007_USB_EZUSB,
114 .main_info = {
115 .flags = GO7007_BOARD_HAS_AUDIO |
116 GO7007_BOARD_USE_ONBOARD_I2C,
117 .audio_flags = GO7007_AUDIO_I2S_MODE_1 |
118 GO7007_AUDIO_I2S_MASTER |
119 GO7007_AUDIO_WORD_16,
120 .audio_rate = 48000,
121 .audio_bclk_div = 8,
122 .audio_main_div = 2,
123 .hpi_buffer_cap = 7,
124 .sensor_flags = GO7007_SENSOR_656 |
125 GO7007_SENSOR_TV,
126 .num_i2c_devs = 1,
127 .i2c_devs = {
128 {
129 .type = "saa7113",
130 .addr = 0x25,
131 .is_video = 1,
132 },
133 },
134 .num_inputs = 2,
135 .inputs = {
136 {
137 .video_input = 0,
138 .name = "Composite",
139 },
140 {
141 .video_input = 9,
142 .name = "S-Video",
143 },
144 },
145 .video_config = SAA7115_IDQ_IS_DEFAULT,
146 },
147 };
148
149 static const struct go7007_usb_board board_star_trek = {
150 .flags = GO7007_USB_EZUSB | GO7007_USB_EZUSB_I2C,
151 .main_info = {
152 .flags = GO7007_BOARD_HAS_AUDIO, /* |
153 GO7007_BOARD_HAS_TUNER, */
154 .sensor_flags = GO7007_SENSOR_656 |
155 GO7007_SENSOR_VALID_ENABLE |
156 GO7007_SENSOR_TV |
157 GO7007_SENSOR_SAA7115 |
158 GO7007_SENSOR_VBI |
159 GO7007_SENSOR_SCALING,
160 .audio_flags = GO7007_AUDIO_I2S_MODE_1 |
161 GO7007_AUDIO_WORD_16,
162 .audio_bclk_div = 8,
163 .audio_main_div = 2,
164 .hpi_buffer_cap = 7,
165 .num_i2c_devs = 1,
166 .i2c_devs = {
167 {
168 .type = "saa7115",
169 .addr = 0x20,
170 .is_video = 1,
171 },
172 },
173 .num_inputs = 2,
174 .inputs = {
175 /* {
176 * .video_input = 3,
177 * .audio_index = AUDIO_TUNER,
178 * .name = "Tuner",
179 * },
180 */
181 {
182 .video_input = 1,
183 /* .audio_index = AUDIO_EXTERN, */
184 .name = "Composite",
185 },
186 {
187 .video_input = 8,
188 /* .audio_index = AUDIO_EXTERN, */
189 .name = "S-Video",
190 },
191 },
192 .video_config = SAA7115_IDQ_IS_DEFAULT,
193 },
194 };
195
196 static const struct go7007_usb_board board_px_tv402u = {
197 .flags = GO7007_USB_EZUSB | GO7007_USB_EZUSB_I2C,
198 .main_info = {
199 .flags = GO7007_BOARD_HAS_AUDIO |
200 GO7007_BOARD_HAS_TUNER,
201 .sensor_flags = GO7007_SENSOR_656 |
202 GO7007_SENSOR_VALID_ENABLE |
203 GO7007_SENSOR_TV |
204 GO7007_SENSOR_SAA7115 |
205 GO7007_SENSOR_VBI |
206 GO7007_SENSOR_SCALING,
207 .audio_flags = GO7007_AUDIO_I2S_MODE_1 |
208 GO7007_AUDIO_WORD_16,
209 .audio_bclk_div = 8,
210 .audio_main_div = 2,
211 .hpi_buffer_cap = 7,
212 .num_i2c_devs = 5,
213 .i2c_devs = {
214 {
215 .type = "saa7115",
216 .addr = 0x20,
217 .is_video = 1,
218 },
219 {
220 .type = "uda1342",
221 .addr = 0x1a,
222 .is_audio = 1,
223 },
224 {
225 .type = "tuner",
226 .addr = 0x60,
227 },
228 {
229 .type = "tuner",
230 .addr = 0x43,
231 },
232 {
233 .type = "sony-btf-mpx",
234 .addr = 0x44,
235 },
236 },
237 .num_inputs = 3,
238 .inputs = {
239 {
240 .video_input = 3,
241 .audio_index = 0,
242 .name = "Tuner",
243 },
244 {
245 .video_input = 1,
246 .audio_index = 1,
247 .name = "Composite",
248 },
249 {
250 .video_input = 8,
251 .audio_index = 1,
252 .name = "S-Video",
253 },
254 },
255 .video_config = SAA7115_IDQ_IS_DEFAULT,
256 .num_aud_inputs = 2,
257 .aud_inputs = {
258 {
259 .audio_input = UDA1342_IN2,
260 .name = "Tuner",
261 },
262 {
263 .audio_input = UDA1342_IN1,
264 .name = "Line In",
265 },
266 },
267 },
268 };
269
270 static const struct go7007_usb_board board_xmen = {
271 .flags = 0,
272 .main_info = {
273 .flags = GO7007_BOARD_USE_ONBOARD_I2C,
274 .hpi_buffer_cap = 0,
275 .sensor_flags = GO7007_SENSOR_VREF_POLAR,
276 .sensor_width = 320,
277 .sensor_height = 240,
278 .sensor_framerate = 30030,
279 .audio_flags = GO7007_AUDIO_ONE_CHANNEL |
280 GO7007_AUDIO_I2S_MODE_3 |
281 GO7007_AUDIO_WORD_14 |
282 GO7007_AUDIO_I2S_MASTER |
283 GO7007_AUDIO_BCLK_POLAR |
284 GO7007_AUDIO_OKI_MODE,
285 .audio_rate = 8000,
286 .audio_bclk_div = 48,
287 .audio_main_div = 1,
288 .num_i2c_devs = 1,
289 .i2c_devs = {
290 {
291 .type = "ov7640",
292 .addr = 0x21,
293 },
294 },
295 .num_inputs = 1,
296 .inputs = {
297 {
298 .name = "Camera",
299 },
300 },
301 },
302 };
303
304 static const struct go7007_usb_board board_matrix_revolution = {
305 .flags = GO7007_USB_EZUSB,
306 .main_info = {
307 .flags = GO7007_BOARD_HAS_AUDIO |
308 GO7007_BOARD_USE_ONBOARD_I2C,
309 .audio_flags = GO7007_AUDIO_I2S_MODE_1 |
310 GO7007_AUDIO_I2S_MASTER |
311 GO7007_AUDIO_WORD_16,
312 .audio_rate = 48000,
313 .audio_bclk_div = 8,
314 .audio_main_div = 2,
315 .hpi_buffer_cap = 7,
316 .sensor_flags = GO7007_SENSOR_656 |
317 GO7007_SENSOR_TV |
318 GO7007_SENSOR_VBI,
319 .num_i2c_devs = 1,
320 .i2c_devs = {
321 {
322 .type = "tw9903",
323 .is_video = 1,
324 .addr = 0x44,
325 },
326 },
327 .num_inputs = 2,
328 .inputs = {
329 {
330 .video_input = 2,
331 .name = "Composite",
332 },
333 {
334 .video_input = 8,
335 .name = "S-Video",
336 },
337 },
338 },
339 };
340
341 static const struct go7007_usb_board board_lifeview_lr192 = {
342 .flags = GO7007_USB_EZUSB,
343 .main_info = {
344 .flags = GO7007_BOARD_HAS_AUDIO |
345 GO7007_BOARD_USE_ONBOARD_I2C,
346 .audio_flags = GO7007_AUDIO_I2S_MODE_1 |
347 GO7007_AUDIO_WORD_16,
348 .audio_rate = 48000,
349 .audio_bclk_div = 8,
350 .audio_main_div = 2,
351 .hpi_buffer_cap = 7,
352 .sensor_flags = GO7007_SENSOR_656 |
353 GO7007_SENSOR_VALID_ENABLE |
354 GO7007_SENSOR_TV |
355 GO7007_SENSOR_VBI |
356 GO7007_SENSOR_SCALING,
357 .num_i2c_devs = 0,
358 .num_inputs = 1,
359 .inputs = {
360 {
361 .video_input = 0,
362 .name = "Composite",
363 },
364 },
365 },
366 };
367
368 static const struct go7007_usb_board board_endura = {
369 .flags = 0,
370 .main_info = {
371 .flags = 0,
372 .audio_flags = GO7007_AUDIO_I2S_MODE_1 |
373 GO7007_AUDIO_I2S_MASTER |
374 GO7007_AUDIO_WORD_16,
375 .audio_rate = 8000,
376 .audio_bclk_div = 48,
377 .audio_main_div = 8,
378 .hpi_buffer_cap = 0,
379 .sensor_flags = GO7007_SENSOR_656 |
380 GO7007_SENSOR_TV,
381 .sensor_h_offset = 8,
382 .num_i2c_devs = 0,
383 .num_inputs = 1,
384 .inputs = {
385 {
386 .name = "Camera",
387 },
388 },
389 },
390 };
391
392 static const struct go7007_usb_board board_adlink_mpg24 = {
393 .flags = 0,
394 .main_info = {
395 .flags = GO7007_BOARD_USE_ONBOARD_I2C,
396 .audio_flags = GO7007_AUDIO_I2S_MODE_1 |
397 GO7007_AUDIO_I2S_MASTER |
398 GO7007_AUDIO_WORD_16,
399 .audio_rate = 48000,
400 .audio_bclk_div = 8,
401 .audio_main_div = 2,
402 .hpi_buffer_cap = 0,
403 .sensor_flags = GO7007_SENSOR_656 |
404 GO7007_SENSOR_TV |
405 GO7007_SENSOR_VBI,
406 .num_i2c_devs = 1,
407 .i2c_devs = {
408 {
409 .type = "tw2804",
410 .addr = 0x00, /* yes, really */
411 .flags = I2C_CLIENT_TEN,
412 .is_video = 1,
413 },
414 },
415 .num_inputs = 1,
416 .inputs = {
417 {
418 .name = "Composite",
419 },
420 },
421 },
422 };
423
424 static const struct go7007_usb_board board_sensoray_2250 = {
425 .flags = GO7007_USB_EZUSB | GO7007_USB_EZUSB_I2C,
426 .main_info = {
427 .audio_flags = GO7007_AUDIO_I2S_MODE_1 |
428 GO7007_AUDIO_I2S_MASTER |
429 GO7007_AUDIO_WORD_16,
430 .flags = GO7007_BOARD_HAS_AUDIO,
431 .audio_rate = 48000,
432 .audio_bclk_div = 8,
433 .audio_main_div = 2,
434 .hpi_buffer_cap = 7,
435 .sensor_flags = GO7007_SENSOR_656 |
436 GO7007_SENSOR_TV,
437 .num_i2c_devs = 1,
438 .i2c_devs = {
439 {
440 .type = "s2250",
441 .addr = 0x43,
442 .is_video = 1,
443 .is_audio = 1,
444 },
445 },
446 .num_inputs = 2,
447 .inputs = {
448 {
449 .video_input = 0,
450 .name = "Composite",
451 },
452 {
453 .video_input = 1,
454 .name = "S-Video",
455 },
456 },
457 .num_aud_inputs = 3,
458 .aud_inputs = {
459 {
460 .audio_input = 0,
461 .name = "Line In",
462 },
463 {
464 .audio_input = 1,
465 .name = "Mic",
466 },
467 {
468 .audio_input = 2,
469 .name = "Mic Boost",
470 },
471 },
472 },
473 };
474
475 static const struct go7007_usb_board board_ads_usbav_709 = {
476 .flags = GO7007_USB_EZUSB,
477 .main_info = {
478 .flags = GO7007_BOARD_HAS_AUDIO |
479 GO7007_BOARD_USE_ONBOARD_I2C,
480 .audio_flags = GO7007_AUDIO_I2S_MODE_1 |
481 GO7007_AUDIO_I2S_MASTER |
482 GO7007_AUDIO_WORD_16,
483 .audio_rate = 48000,
484 .audio_bclk_div = 8,
485 .audio_main_div = 2,
486 .hpi_buffer_cap = 7,
487 .sensor_flags = GO7007_SENSOR_656 |
488 GO7007_SENSOR_TV |
489 GO7007_SENSOR_VBI,
490 .num_i2c_devs = 1,
491 .i2c_devs = {
492 {
493 .type = "tw9906",
494 .is_video = 1,
495 .addr = 0x44,
496 },
497 },
498 .num_inputs = 2,
499 .inputs = {
500 {
501 .video_input = 0,
502 .name = "Composite",
503 },
504 {
505 .video_input = 10,
506 .name = "S-Video",
507 },
508 },
509 },
510 };
511
512 static const struct usb_device_id go7007_usb_id_table[] = {
513 {
514 .match_flags = USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION |
515 USB_DEVICE_ID_MATCH_INT_INFO,
516 .idVendor = 0x0eb1, /* Vendor ID of WIS Technologies */
517 .idProduct = 0x7007, /* Product ID of GO7007SB chip */
518 .bcdDevice_lo = 0x200, /* Revision number of XMen */
519 .bcdDevice_hi = 0x200,
520 .bInterfaceClass = 255,
521 .bInterfaceSubClass = 0,
522 .bInterfaceProtocol = 255,
523 .driver_info = (kernel_ulong_t)GO7007_BOARDID_XMEN,
524 },
525 {
526 .match_flags = USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION,
527 .idVendor = 0x0eb1, /* Vendor ID of WIS Technologies */
528 .idProduct = 0x7007, /* Product ID of GO7007SB chip */
529 .bcdDevice_lo = 0x202, /* Revision number of Matrix II */
530 .bcdDevice_hi = 0x202,
531 .driver_info = (kernel_ulong_t)GO7007_BOARDID_MATRIX_II,
532 },
533 {
534 .match_flags = USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION,
535 .idVendor = 0x0eb1, /* Vendor ID of WIS Technologies */
536 .idProduct = 0x7007, /* Product ID of GO7007SB chip */
537 .bcdDevice_lo = 0x204, /* Revision number of Matrix */
538 .bcdDevice_hi = 0x204, /* Reloaded */
539 .driver_info = (kernel_ulong_t)GO7007_BOARDID_MATRIX_RELOAD,
540 },
541 {
542 .match_flags = USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION |
543 USB_DEVICE_ID_MATCH_INT_INFO,
544 .idVendor = 0x0eb1, /* Vendor ID of WIS Technologies */
545 .idProduct = 0x7007, /* Product ID of GO7007SB chip */
546 .bcdDevice_lo = 0x205, /* Revision number of XMen-II */
547 .bcdDevice_hi = 0x205,
548 .bInterfaceClass = 255,
549 .bInterfaceSubClass = 0,
550 .bInterfaceProtocol = 255,
551 .driver_info = (kernel_ulong_t)GO7007_BOARDID_XMEN_II,
552 },
553 {
554 .match_flags = USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION,
555 .idVendor = 0x0eb1, /* Vendor ID of WIS Technologies */
556 .idProduct = 0x7007, /* Product ID of GO7007SB chip */
557 .bcdDevice_lo = 0x208, /* Revision number of Star Trek */
558 .bcdDevice_hi = 0x208,
559 .driver_info = (kernel_ulong_t)GO7007_BOARDID_STAR_TREK,
560 },
561 {
562 .match_flags = USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION |
563 USB_DEVICE_ID_MATCH_INT_INFO,
564 .idVendor = 0x0eb1, /* Vendor ID of WIS Technologies */
565 .idProduct = 0x7007, /* Product ID of GO7007SB chip */
566 .bcdDevice_lo = 0x209, /* Revision number of XMen-III */
567 .bcdDevice_hi = 0x209,
568 .bInterfaceClass = 255,
569 .bInterfaceSubClass = 0,
570 .bInterfaceProtocol = 255,
571 .driver_info = (kernel_ulong_t)GO7007_BOARDID_XMEN_III,
572 },
573 {
574 .match_flags = USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION,
575 .idVendor = 0x0eb1, /* Vendor ID of WIS Technologies */
576 .idProduct = 0x7007, /* Product ID of GO7007SB chip */
577 .bcdDevice_lo = 0x210, /* Revision number of Matrix */
578 .bcdDevice_hi = 0x210, /* Revolution */
579 .driver_info = (kernel_ulong_t)GO7007_BOARDID_MATRIX_REV,
580 },
581 {
582 .match_flags = USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION,
583 .idVendor = 0x093b, /* Vendor ID of Plextor */
584 .idProduct = 0xa102, /* Product ID of M402U */
585 .bcdDevice_lo = 0x1, /* revision number of Blueberry */
586 .bcdDevice_hi = 0x1,
587 .driver_info = (kernel_ulong_t)GO7007_BOARDID_PX_M402U,
588 },
589 {
590 .match_flags = USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION,
591 .idVendor = 0x093b, /* Vendor ID of Plextor */
592 .idProduct = 0xa104, /* Product ID of TV402U */
593 .bcdDevice_lo = 0x1,
594 .bcdDevice_hi = 0x1,
595 .driver_info = (kernel_ulong_t)GO7007_BOARDID_PX_TV402U,
596 },
597 {
598 .match_flags = USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION,
599 .idVendor = 0x10fd, /* Vendor ID of Anubis Electronics */
600 .idProduct = 0xde00, /* Product ID of Lifeview LR192 */
601 .bcdDevice_lo = 0x1,
602 .bcdDevice_hi = 0x1,
603 .driver_info = (kernel_ulong_t)GO7007_BOARDID_LIFEVIEW_LR192,
604 },
605 {
606 .match_flags = USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION,
607 .idVendor = 0x1943, /* Vendor ID Sensoray */
608 .idProduct = 0x2250, /* Product ID of 2250/2251 */
609 .bcdDevice_lo = 0x1,
610 .bcdDevice_hi = 0x1,
611 .driver_info = (kernel_ulong_t)GO7007_BOARDID_SENSORAY_2250,
612 },
613 {
614 .match_flags = USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION,
615 .idVendor = 0x06e1, /* Vendor ID of ADS Technologies */
616 .idProduct = 0x0709, /* Product ID of DVD Xpress DX2 */
617 .bcdDevice_lo = 0x204,
618 .bcdDevice_hi = 0x204,
619 .driver_info = (kernel_ulong_t)GO7007_BOARDID_ADS_USBAV_709,
620 },
621 { } /* Terminating entry */
622 };
623
624 MODULE_DEVICE_TABLE(usb, go7007_usb_id_table);
625
626 /********************* Driver for EZ-USB HPI interface *********************/
627
go7007_usb_vendor_request(struct go7007 * go,int request,int value,int index,void * transfer_buffer,int length,int in)628 static int go7007_usb_vendor_request(struct go7007 *go, int request,
629 int value, int index, void *transfer_buffer, int length, int in)
630 {
631 struct go7007_usb *usb = go->hpi_context;
632 int timeout = 5000;
633
634 if (in) {
635 return usb_control_msg(usb->usbdev,
636 usb_rcvctrlpipe(usb->usbdev, 0), request,
637 USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
638 value, index, transfer_buffer, length, timeout);
639 } else {
640 return usb_control_msg(usb->usbdev,
641 usb_sndctrlpipe(usb->usbdev, 0), request,
642 USB_TYPE_VENDOR | USB_RECIP_DEVICE,
643 value, index, transfer_buffer, length, timeout);
644 }
645 }
646
go7007_usb_interface_reset(struct go7007 * go)647 static int go7007_usb_interface_reset(struct go7007 *go)
648 {
649 struct go7007_usb *usb = go->hpi_context;
650 u16 intr_val, intr_data;
651
652 if (go->status == STATUS_SHUTDOWN)
653 return -1;
654 /* Reset encoder */
655 if (go7007_write_interrupt(go, 0x0001, 0x0001) < 0)
656 return -1;
657 msleep(100);
658
659 if (usb->board->flags & GO7007_USB_EZUSB) {
660 /* Reset buffer in EZ-USB */
661 pr_debug("resetting EZ-USB buffers\n");
662 if (go7007_usb_vendor_request(go, 0x10, 0, 0, NULL, 0, 0) < 0 ||
663 go7007_usb_vendor_request(go, 0x10, 0, 0, NULL, 0, 0) < 0)
664 return -1;
665
666 /* Reset encoder again */
667 if (go7007_write_interrupt(go, 0x0001, 0x0001) < 0)
668 return -1;
669 msleep(100);
670 }
671
672 /* Wait for an interrupt to indicate successful hardware reset */
673 if (go7007_read_interrupt(go, &intr_val, &intr_data) < 0 ||
674 (intr_val & ~0x1) != 0x55aa) {
675 dev_err(go->dev, "unable to reset the USB interface\n");
676 return -1;
677 }
678 return 0;
679 }
680
go7007_usb_ezusb_write_interrupt(struct go7007 * go,int addr,int data)681 static int go7007_usb_ezusb_write_interrupt(struct go7007 *go,
682 int addr, int data)
683 {
684 struct go7007_usb *usb = go->hpi_context;
685 int i, r;
686 u16 status_reg = 0;
687 int timeout = 500;
688
689 pr_debug("WriteInterrupt: %04x %04x\n", addr, data);
690
691 for (i = 0; i < 100; ++i) {
692 r = usb_control_msg(usb->usbdev,
693 usb_rcvctrlpipe(usb->usbdev, 0), 0x14,
694 USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
695 0, HPI_STATUS_ADDR, go->usb_buf,
696 sizeof(status_reg), timeout);
697 if (r < 0)
698 break;
699 status_reg = le16_to_cpu(*((__le16 *)go->usb_buf));
700 if (!(status_reg & 0x0010))
701 break;
702 msleep(10);
703 }
704 if (r < 0)
705 goto write_int_error;
706 if (i == 100) {
707 dev_err(go->dev, "device is hung, status reg = 0x%04x\n", status_reg);
708 return -1;
709 }
710 r = usb_control_msg(usb->usbdev, usb_sndctrlpipe(usb->usbdev, 0), 0x12,
711 USB_TYPE_VENDOR | USB_RECIP_DEVICE, data,
712 INT_PARAM_ADDR, NULL, 0, timeout);
713 if (r < 0)
714 goto write_int_error;
715 r = usb_control_msg(usb->usbdev, usb_sndctrlpipe(usb->usbdev, 0),
716 0x12, USB_TYPE_VENDOR | USB_RECIP_DEVICE, addr,
717 INT_INDEX_ADDR, NULL, 0, timeout);
718 if (r < 0)
719 goto write_int_error;
720 return 0;
721
722 write_int_error:
723 dev_err(go->dev, "error in WriteInterrupt: %d\n", r);
724 return r;
725 }
726
go7007_usb_onboard_write_interrupt(struct go7007 * go,int addr,int data)727 static int go7007_usb_onboard_write_interrupt(struct go7007 *go,
728 int addr, int data)
729 {
730 struct go7007_usb *usb = go->hpi_context;
731 int r;
732 int timeout = 500;
733
734 pr_debug("WriteInterrupt: %04x %04x\n", addr, data);
735
736 go->usb_buf[0] = data & 0xff;
737 go->usb_buf[1] = data >> 8;
738 go->usb_buf[2] = addr & 0xff;
739 go->usb_buf[3] = addr >> 8;
740 go->usb_buf[4] = go->usb_buf[5] = go->usb_buf[6] = go->usb_buf[7] = 0;
741 r = usb_control_msg(usb->usbdev, usb_sndctrlpipe(usb->usbdev, 2), 0x00,
742 USB_TYPE_VENDOR | USB_RECIP_ENDPOINT, 0x55aa,
743 0xf0f0, go->usb_buf, 8, timeout);
744 if (r < 0) {
745 dev_err(go->dev, "error in WriteInterrupt: %d\n", r);
746 return r;
747 }
748 return 0;
749 }
750
go7007_usb_readinterrupt_complete(struct urb * urb)751 static void go7007_usb_readinterrupt_complete(struct urb *urb)
752 {
753 struct go7007 *go = (struct go7007 *)urb->context;
754 __le16 *regs = (__le16 *)urb->transfer_buffer;
755 int status = urb->status;
756
757 if (status) {
758 if (status != -ESHUTDOWN &&
759 go->status != STATUS_SHUTDOWN) {
760 dev_err(go->dev, "error in read interrupt: %d\n", urb->status);
761 } else {
762 wake_up(&go->interrupt_waitq);
763 return;
764 }
765 } else if (urb->actual_length != urb->transfer_buffer_length) {
766 dev_err(go->dev, "short read in interrupt pipe!\n");
767 } else {
768 go->interrupt_available = 1;
769 go->interrupt_data = __le16_to_cpu(regs[0]);
770 go->interrupt_value = __le16_to_cpu(regs[1]);
771 pr_debug("ReadInterrupt: %04x %04x\n",
772 go->interrupt_value, go->interrupt_data);
773 }
774
775 wake_up(&go->interrupt_waitq);
776 }
777
go7007_usb_read_interrupt(struct go7007 * go)778 static int go7007_usb_read_interrupt(struct go7007 *go)
779 {
780 struct go7007_usb *usb = go->hpi_context;
781 int r;
782
783 r = usb_submit_urb(usb->intr_urb, GFP_KERNEL);
784 if (r < 0) {
785 dev_err(go->dev, "unable to submit interrupt urb: %d\n", r);
786 return r;
787 }
788 return 0;
789 }
790
go7007_usb_read_video_pipe_complete(struct urb * urb)791 static void go7007_usb_read_video_pipe_complete(struct urb *urb)
792 {
793 struct go7007 *go = (struct go7007 *)urb->context;
794 int r, status = urb->status;
795
796 if (!vb2_is_streaming(&go->vidq)) {
797 wake_up_interruptible(&go->frame_waitq);
798 return;
799 }
800 if (status) {
801 dev_err(go->dev, "error in video pipe: %d\n", status);
802 return;
803 }
804 if (urb->actual_length != urb->transfer_buffer_length) {
805 dev_err(go->dev, "short read in video pipe!\n");
806 return;
807 }
808 go7007_parse_video_stream(go, urb->transfer_buffer, urb->actual_length);
809 r = usb_submit_urb(urb, GFP_ATOMIC);
810 if (r < 0)
811 dev_err(go->dev, "error in video pipe: %d\n", r);
812 }
813
go7007_usb_read_audio_pipe_complete(struct urb * urb)814 static void go7007_usb_read_audio_pipe_complete(struct urb *urb)
815 {
816 struct go7007 *go = (struct go7007 *)urb->context;
817 int r, status = urb->status;
818
819 if (!vb2_is_streaming(&go->vidq))
820 return;
821 if (status) {
822 dev_err(go->dev, "error in audio pipe: %d\n",
823 status);
824 return;
825 }
826 if (urb->actual_length != urb->transfer_buffer_length) {
827 dev_err(go->dev, "short read in audio pipe!\n");
828 return;
829 }
830 if (go->audio_deliver != NULL)
831 go->audio_deliver(go, urb->transfer_buffer, urb->actual_length);
832 r = usb_submit_urb(urb, GFP_ATOMIC);
833 if (r < 0)
834 dev_err(go->dev, "error in audio pipe: %d\n", r);
835 }
836
go7007_usb_stream_start(struct go7007 * go)837 static int go7007_usb_stream_start(struct go7007 *go)
838 {
839 struct go7007_usb *usb = go->hpi_context;
840 int i, r;
841
842 for (i = 0; i < 8; ++i) {
843 r = usb_submit_urb(usb->video_urbs[i], GFP_KERNEL);
844 if (r < 0) {
845 dev_err(go->dev, "error submitting video urb %d: %d\n", i, r);
846 goto video_submit_failed;
847 }
848 }
849 if (!go->audio_enabled)
850 return 0;
851
852 for (i = 0; i < 8; ++i) {
853 r = usb_submit_urb(usb->audio_urbs[i], GFP_KERNEL);
854 if (r < 0) {
855 dev_err(go->dev, "error submitting audio urb %d: %d\n", i, r);
856 goto audio_submit_failed;
857 }
858 }
859 return 0;
860
861 audio_submit_failed:
862 for (i = 0; i < 7; ++i)
863 usb_kill_urb(usb->audio_urbs[i]);
864 video_submit_failed:
865 for (i = 0; i < 8; ++i)
866 usb_kill_urb(usb->video_urbs[i]);
867 return -1;
868 }
869
go7007_usb_stream_stop(struct go7007 * go)870 static int go7007_usb_stream_stop(struct go7007 *go)
871 {
872 struct go7007_usb *usb = go->hpi_context;
873 int i;
874
875 if (go->status == STATUS_SHUTDOWN)
876 return 0;
877 for (i = 0; i < 8; ++i)
878 usb_kill_urb(usb->video_urbs[i]);
879 if (go->audio_enabled)
880 for (i = 0; i < 8; ++i)
881 usb_kill_urb(usb->audio_urbs[i]);
882 return 0;
883 }
884
go7007_usb_send_firmware(struct go7007 * go,u8 * data,int len)885 static int go7007_usb_send_firmware(struct go7007 *go, u8 *data, int len)
886 {
887 struct go7007_usb *usb = go->hpi_context;
888 int transferred, pipe;
889 int timeout = 500;
890
891 pr_debug("DownloadBuffer sending %d bytes\n", len);
892
893 if (usb->board->flags & GO7007_USB_EZUSB)
894 pipe = usb_sndbulkpipe(usb->usbdev, 2);
895 else
896 pipe = usb_sndbulkpipe(usb->usbdev, 3);
897
898 return usb_bulk_msg(usb->usbdev, pipe, data, len,
899 &transferred, timeout);
900 }
901
go7007_usb_release(struct go7007 * go)902 static void go7007_usb_release(struct go7007 *go)
903 {
904 struct go7007_usb *usb = go->hpi_context;
905 struct urb *vurb, *aurb;
906 int i;
907
908 if (usb->intr_urb) {
909 usb_kill_urb(usb->intr_urb);
910 kfree(usb->intr_urb->transfer_buffer);
911 usb_free_urb(usb->intr_urb);
912 }
913
914 /* Free USB-related structs */
915 for (i = 0; i < 8; ++i) {
916 vurb = usb->video_urbs[i];
917 if (vurb) {
918 usb_kill_urb(vurb);
919 kfree(vurb->transfer_buffer);
920 usb_free_urb(vurb);
921 }
922 aurb = usb->audio_urbs[i];
923 if (aurb) {
924 usb_kill_urb(aurb);
925 kfree(aurb->transfer_buffer);
926 usb_free_urb(aurb);
927 }
928 }
929
930 kfree(go->hpi_context);
931 }
932
933 static struct go7007_hpi_ops go7007_usb_ezusb_hpi_ops = {
934 .interface_reset = go7007_usb_interface_reset,
935 .write_interrupt = go7007_usb_ezusb_write_interrupt,
936 .read_interrupt = go7007_usb_read_interrupt,
937 .stream_start = go7007_usb_stream_start,
938 .stream_stop = go7007_usb_stream_stop,
939 .send_firmware = go7007_usb_send_firmware,
940 .release = go7007_usb_release,
941 };
942
943 static struct go7007_hpi_ops go7007_usb_onboard_hpi_ops = {
944 .interface_reset = go7007_usb_interface_reset,
945 .write_interrupt = go7007_usb_onboard_write_interrupt,
946 .read_interrupt = go7007_usb_read_interrupt,
947 .stream_start = go7007_usb_stream_start,
948 .stream_stop = go7007_usb_stream_stop,
949 .send_firmware = go7007_usb_send_firmware,
950 .release = go7007_usb_release,
951 };
952
953 /********************* Driver for EZ-USB I2C adapter *********************/
954
go7007_usb_i2c_master_xfer(struct i2c_adapter * adapter,struct i2c_msg msgs[],int num)955 static int go7007_usb_i2c_master_xfer(struct i2c_adapter *adapter,
956 struct i2c_msg msgs[], int num)
957 {
958 struct go7007 *go = i2c_get_adapdata(adapter);
959 struct go7007_usb *usb = go->hpi_context;
960 u8 *buf = go->usb_buf;
961 int buf_len, i;
962 int ret = -EIO;
963
964 if (go->status == STATUS_SHUTDOWN)
965 return -ENODEV;
966
967 mutex_lock(&usb->i2c_lock);
968
969 for (i = 0; i < num; ++i) {
970 /* The hardware command is "write some bytes then read some
971 * bytes", so we try to coalesce a write followed by a read
972 * into a single USB transaction */
973 if (i + 1 < num && msgs[i].addr == msgs[i + 1].addr &&
974 !(msgs[i].flags & I2C_M_RD) &&
975 (msgs[i + 1].flags & I2C_M_RD)) {
976 #ifdef GO7007_I2C_DEBUG
977 pr_debug("i2c write/read %d/%d bytes on %02x\n",
978 msgs[i].len, msgs[i + 1].len, msgs[i].addr);
979 #endif
980 buf[0] = 0x01;
981 buf[1] = msgs[i].len + 1;
982 buf[2] = msgs[i].addr << 1;
983 memcpy(&buf[3], msgs[i].buf, msgs[i].len);
984 buf_len = msgs[i].len + 3;
985 buf[buf_len++] = msgs[++i].len;
986 } else if (msgs[i].flags & I2C_M_RD) {
987 #ifdef GO7007_I2C_DEBUG
988 pr_debug("i2c read %d bytes on %02x\n",
989 msgs[i].len, msgs[i].addr);
990 #endif
991 buf[0] = 0x01;
992 buf[1] = 1;
993 buf[2] = msgs[i].addr << 1;
994 buf[3] = msgs[i].len;
995 buf_len = 4;
996 } else {
997 #ifdef GO7007_I2C_DEBUG
998 pr_debug("i2c write %d bytes on %02x\n",
999 msgs[i].len, msgs[i].addr);
1000 #endif
1001 buf[0] = 0x00;
1002 buf[1] = msgs[i].len + 1;
1003 buf[2] = msgs[i].addr << 1;
1004 memcpy(&buf[3], msgs[i].buf, msgs[i].len);
1005 buf_len = msgs[i].len + 3;
1006 buf[buf_len++] = 0;
1007 }
1008 if (go7007_usb_vendor_request(go, 0x24, 0, 0,
1009 buf, buf_len, 0) < 0)
1010 goto i2c_done;
1011 if (msgs[i].flags & I2C_M_RD) {
1012 memset(buf, 0, msgs[i].len + 1);
1013 if (go7007_usb_vendor_request(go, 0x25, 0, 0, buf,
1014 msgs[i].len + 1, 1) < 0)
1015 goto i2c_done;
1016 memcpy(msgs[i].buf, buf + 1, msgs[i].len);
1017 }
1018 }
1019 ret = num;
1020
1021 i2c_done:
1022 mutex_unlock(&usb->i2c_lock);
1023 return ret;
1024 }
1025
go7007_usb_functionality(struct i2c_adapter * adapter)1026 static u32 go7007_usb_functionality(struct i2c_adapter *adapter)
1027 {
1028 /* No errors are reported by the hardware, so we don't bother
1029 * supporting quick writes to avoid confusing probing */
1030 return (I2C_FUNC_SMBUS_EMUL) & ~I2C_FUNC_SMBUS_QUICK;
1031 }
1032
1033 static struct i2c_algorithm go7007_usb_algo = {
1034 .master_xfer = go7007_usb_i2c_master_xfer,
1035 .functionality = go7007_usb_functionality,
1036 };
1037
1038 static struct i2c_adapter go7007_usb_adap_templ = {
1039 .owner = THIS_MODULE,
1040 .name = "WIS GO7007SB EZ-USB",
1041 .algo = &go7007_usb_algo,
1042 };
1043
1044 /********************* USB add/remove functions *********************/
1045
go7007_usb_probe(struct usb_interface * intf,const struct usb_device_id * id)1046 static int go7007_usb_probe(struct usb_interface *intf,
1047 const struct usb_device_id *id)
1048 {
1049 struct go7007 *go;
1050 struct go7007_usb *usb;
1051 const struct go7007_usb_board *board;
1052 struct usb_device *usbdev = interface_to_usbdev(intf);
1053 unsigned num_i2c_devs;
1054 char *name;
1055 int video_pipe, i, v_urb_len;
1056
1057 pr_debug("probing new GO7007 USB board\n");
1058
1059 switch (id->driver_info) {
1060 case GO7007_BOARDID_MATRIX_II:
1061 name = "WIS Matrix II or compatible";
1062 board = &board_matrix_ii;
1063 break;
1064 case GO7007_BOARDID_MATRIX_RELOAD:
1065 name = "WIS Matrix Reloaded or compatible";
1066 board = &board_matrix_reload;
1067 break;
1068 case GO7007_BOARDID_MATRIX_REV:
1069 name = "WIS Matrix Revolution or compatible";
1070 board = &board_matrix_revolution;
1071 break;
1072 case GO7007_BOARDID_STAR_TREK:
1073 name = "WIS Star Trek or compatible";
1074 board = &board_star_trek;
1075 break;
1076 case GO7007_BOARDID_XMEN:
1077 name = "WIS XMen or compatible";
1078 board = &board_xmen;
1079 break;
1080 case GO7007_BOARDID_XMEN_II:
1081 name = "WIS XMen II or compatible";
1082 board = &board_xmen;
1083 break;
1084 case GO7007_BOARDID_XMEN_III:
1085 name = "WIS XMen III or compatible";
1086 board = &board_xmen;
1087 break;
1088 case GO7007_BOARDID_PX_M402U:
1089 name = "Plextor PX-M402U";
1090 board = &board_matrix_ii;
1091 break;
1092 case GO7007_BOARDID_PX_TV402U:
1093 name = "Plextor PX-TV402U (unknown tuner)";
1094 board = &board_px_tv402u;
1095 break;
1096 case GO7007_BOARDID_LIFEVIEW_LR192:
1097 dev_err(&intf->dev, "The Lifeview TV Walker Ultra is not supported. Sorry!\n");
1098 return -ENODEV;
1099 name = "Lifeview TV Walker Ultra";
1100 board = &board_lifeview_lr192;
1101 break;
1102 case GO7007_BOARDID_SENSORAY_2250:
1103 dev_info(&intf->dev, "Sensoray 2250 found\n");
1104 name = "Sensoray 2250/2251";
1105 board = &board_sensoray_2250;
1106 break;
1107 case GO7007_BOARDID_ADS_USBAV_709:
1108 name = "ADS Tech DVD Xpress DX2";
1109 board = &board_ads_usbav_709;
1110 break;
1111 default:
1112 dev_err(&intf->dev, "unknown board ID %d!\n",
1113 (unsigned int)id->driver_info);
1114 return -ENODEV;
1115 }
1116
1117 go = go7007_alloc(&board->main_info, &intf->dev);
1118 if (go == NULL)
1119 return -ENOMEM;
1120
1121 usb = kzalloc(sizeof(struct go7007_usb), GFP_KERNEL);
1122 if (usb == NULL) {
1123 kfree(go);
1124 return -ENOMEM;
1125 }
1126
1127 usb->board = board;
1128 usb->usbdev = usbdev;
1129 usb_make_path(usbdev, go->bus_info, sizeof(go->bus_info));
1130 go->board_id = id->driver_info;
1131 strncpy(go->name, name, sizeof(go->name));
1132 if (board->flags & GO7007_USB_EZUSB)
1133 go->hpi_ops = &go7007_usb_ezusb_hpi_ops;
1134 else
1135 go->hpi_ops = &go7007_usb_onboard_hpi_ops;
1136 go->hpi_context = usb;
1137
1138 /* Allocate the URB and buffer for receiving incoming interrupts */
1139 usb->intr_urb = usb_alloc_urb(0, GFP_KERNEL);
1140 if (usb->intr_urb == NULL)
1141 goto allocfail;
1142 usb->intr_urb->transfer_buffer = kmalloc(2*sizeof(u16), GFP_KERNEL);
1143 if (usb->intr_urb->transfer_buffer == NULL)
1144 goto allocfail;
1145
1146 if (go->board_id == GO7007_BOARDID_SENSORAY_2250)
1147 usb_fill_bulk_urb(usb->intr_urb, usb->usbdev,
1148 usb_rcvbulkpipe(usb->usbdev, 4),
1149 usb->intr_urb->transfer_buffer, 2*sizeof(u16),
1150 go7007_usb_readinterrupt_complete, go);
1151 else
1152 usb_fill_int_urb(usb->intr_urb, usb->usbdev,
1153 usb_rcvintpipe(usb->usbdev, 4),
1154 usb->intr_urb->transfer_buffer, 2*sizeof(u16),
1155 go7007_usb_readinterrupt_complete, go, 8);
1156 usb_set_intfdata(intf, &go->v4l2_dev);
1157
1158 /* Boot the GO7007 */
1159 if (go7007_boot_encoder(go, go->board_info->flags &
1160 GO7007_BOARD_USE_ONBOARD_I2C) < 0)
1161 goto allocfail;
1162
1163 /* Register the EZ-USB I2C adapter, if we're using it */
1164 if (board->flags & GO7007_USB_EZUSB_I2C) {
1165 memcpy(&go->i2c_adapter, &go7007_usb_adap_templ,
1166 sizeof(go7007_usb_adap_templ));
1167 mutex_init(&usb->i2c_lock);
1168 go->i2c_adapter.dev.parent = go->dev;
1169 i2c_set_adapdata(&go->i2c_adapter, go);
1170 if (i2c_add_adapter(&go->i2c_adapter) < 0) {
1171 dev_err(go->dev, "error: i2c_add_adapter failed\n");
1172 goto allocfail;
1173 }
1174 go->i2c_adapter_online = 1;
1175 }
1176
1177 /* Pelco and Adlink reused the XMen and XMen-III vendor and product
1178 * IDs for their own incompatible designs. We can detect XMen boards
1179 * by probing the sensor, but there is no way to probe the sensors on
1180 * the Pelco and Adlink designs so we default to the Adlink. If it
1181 * is actually a Pelco, the user must set the assume_endura module
1182 * parameter. */
1183 if ((go->board_id == GO7007_BOARDID_XMEN ||
1184 go->board_id == GO7007_BOARDID_XMEN_III) &&
1185 go->i2c_adapter_online) {
1186 union i2c_smbus_data data;
1187
1188 /* Check to see if register 0x0A is 0x76 */
1189 i2c_smbus_xfer(&go->i2c_adapter, 0x21, I2C_CLIENT_SCCB,
1190 I2C_SMBUS_READ, 0x0A, I2C_SMBUS_BYTE_DATA, &data);
1191 if (data.byte != 0x76) {
1192 if (assume_endura) {
1193 go->board_id = GO7007_BOARDID_ENDURA;
1194 usb->board = board = &board_endura;
1195 go->board_info = &board->main_info;
1196 strncpy(go->name, "Pelco Endura",
1197 sizeof(go->name));
1198 } else {
1199 u16 channel;
1200
1201 /* read channel number from GPIO[1:0] */
1202 go7007_read_addr(go, 0x3c81, &channel);
1203 channel &= 0x3;
1204 go->board_id = GO7007_BOARDID_ADLINK_MPG24;
1205 usb->board = board = &board_adlink_mpg24;
1206 go->board_info = &board->main_info;
1207 go->channel_number = channel;
1208 snprintf(go->name, sizeof(go->name),
1209 "Adlink PCI-MPG24, channel #%d",
1210 channel);
1211 }
1212 go7007_update_board(go);
1213 }
1214 }
1215
1216 num_i2c_devs = go->board_info->num_i2c_devs;
1217
1218 /* Probe the tuner model on the TV402U */
1219 if (go->board_id == GO7007_BOARDID_PX_TV402U) {
1220 /* Board strapping indicates tuner model */
1221 if (go7007_usb_vendor_request(go, 0x41, 0, 0, go->usb_buf, 3,
1222 1) < 0) {
1223 dev_err(go->dev, "GPIO read failed!\n");
1224 goto allocfail;
1225 }
1226 switch (go->usb_buf[0] >> 6) {
1227 case 1:
1228 go->tuner_type = TUNER_SONY_BTF_PG472Z;
1229 go->std = V4L2_STD_PAL;
1230 strncpy(go->name, "Plextor PX-TV402U-EU",
1231 sizeof(go->name));
1232 break;
1233 case 2:
1234 go->tuner_type = TUNER_SONY_BTF_PK467Z;
1235 go->std = V4L2_STD_NTSC_M_JP;
1236 num_i2c_devs -= 2;
1237 strncpy(go->name, "Plextor PX-TV402U-JP",
1238 sizeof(go->name));
1239 break;
1240 case 3:
1241 go->tuner_type = TUNER_SONY_BTF_PB463Z;
1242 num_i2c_devs -= 2;
1243 strncpy(go->name, "Plextor PX-TV402U-NA",
1244 sizeof(go->name));
1245 break;
1246 default:
1247 pr_debug("unable to detect tuner type!\n");
1248 break;
1249 }
1250 /* Configure tuner mode selection inputs connected
1251 * to the EZ-USB GPIO output pins */
1252 if (go7007_usb_vendor_request(go, 0x40, 0x7f02, 0,
1253 NULL, 0, 0) < 0) {
1254 dev_err(go->dev, "GPIO write failed!\n");
1255 goto allocfail;
1256 }
1257 }
1258
1259 /* Print a nasty message if the user attempts to use a USB2.0 device in
1260 * a USB1.1 port. There will be silent corruption of the stream. */
1261 if ((board->flags & GO7007_USB_EZUSB) &&
1262 usbdev->speed != USB_SPEED_HIGH)
1263 dev_err(go->dev, "*** WARNING *** This device must be connected to a USB 2.0 port! Attempting to capture video through a USB 1.1 port will result in stream corruption, even at low bitrates!\n");
1264
1265 /* Allocate the URBs and buffers for receiving the video stream */
1266 if (board->flags & GO7007_USB_EZUSB) {
1267 v_urb_len = 1024;
1268 video_pipe = usb_rcvbulkpipe(usb->usbdev, 6);
1269 } else {
1270 v_urb_len = 512;
1271 video_pipe = usb_rcvbulkpipe(usb->usbdev, 1);
1272 }
1273 for (i = 0; i < 8; ++i) {
1274 usb->video_urbs[i] = usb_alloc_urb(0, GFP_KERNEL);
1275 if (usb->video_urbs[i] == NULL)
1276 goto allocfail;
1277 usb->video_urbs[i]->transfer_buffer =
1278 kmalloc(v_urb_len, GFP_KERNEL);
1279 if (usb->video_urbs[i]->transfer_buffer == NULL)
1280 goto allocfail;
1281 usb_fill_bulk_urb(usb->video_urbs[i], usb->usbdev, video_pipe,
1282 usb->video_urbs[i]->transfer_buffer, v_urb_len,
1283 go7007_usb_read_video_pipe_complete, go);
1284 }
1285
1286 /* Allocate the URBs and buffers for receiving the audio stream */
1287 if ((board->flags & GO7007_USB_EZUSB) &&
1288 (board->flags & GO7007_BOARD_HAS_AUDIO)) {
1289 for (i = 0; i < 8; ++i) {
1290 usb->audio_urbs[i] = usb_alloc_urb(0, GFP_KERNEL);
1291 if (usb->audio_urbs[i] == NULL)
1292 goto allocfail;
1293 usb->audio_urbs[i]->transfer_buffer = kmalloc(4096,
1294 GFP_KERNEL);
1295 if (usb->audio_urbs[i]->transfer_buffer == NULL)
1296 goto allocfail;
1297 usb_fill_bulk_urb(usb->audio_urbs[i], usb->usbdev,
1298 usb_rcvbulkpipe(usb->usbdev, 8),
1299 usb->audio_urbs[i]->transfer_buffer, 4096,
1300 go7007_usb_read_audio_pipe_complete, go);
1301 }
1302 }
1303
1304 /* Do any final GO7007 initialization, then register the
1305 * V4L2 and ALSA interfaces */
1306 if (go7007_register_encoder(go, num_i2c_devs) < 0)
1307 goto allocfail;
1308
1309 go->status = STATUS_ONLINE;
1310 return 0;
1311
1312 allocfail:
1313 go7007_usb_release(go);
1314 kfree(go);
1315 return -ENOMEM;
1316 }
1317
go7007_usb_disconnect(struct usb_interface * intf)1318 static void go7007_usb_disconnect(struct usb_interface *intf)
1319 {
1320 struct go7007 *go = to_go7007(usb_get_intfdata(intf));
1321
1322 mutex_lock(&go->queue_lock);
1323 mutex_lock(&go->serialize_lock);
1324
1325 if (go->audio_enabled)
1326 go7007_snd_remove(go);
1327
1328 go->status = STATUS_SHUTDOWN;
1329 v4l2_device_disconnect(&go->v4l2_dev);
1330 video_unregister_device(&go->vdev);
1331 mutex_unlock(&go->serialize_lock);
1332 mutex_unlock(&go->queue_lock);
1333
1334 v4l2_device_put(&go->v4l2_dev);
1335 }
1336
1337 static struct usb_driver go7007_usb_driver = {
1338 .name = "go7007",
1339 .probe = go7007_usb_probe,
1340 .disconnect = go7007_usb_disconnect,
1341 .id_table = go7007_usb_id_table,
1342 };
1343
1344 module_usb_driver(go7007_usb_driver);
1345 MODULE_LICENSE("GPL v2");
1346