1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * Copyright (C) 2005-2006 Micronas USA Inc.
4  */
5 
6 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
7 
8 #include <linux/module.h>
9 #include <linux/kernel.h>
10 #include <linux/wait.h>
11 #include <linux/list.h>
12 #include <linux/slab.h>
13 #include <linux/time.h>
14 #include <linux/mm.h>
15 #include <linux/usb.h>
16 #include <linux/i2c.h>
17 #include <asm/byteorder.h>
18 #include <media/i2c/saa7115.h>
19 #include <media/tuner.h>
20 #include <media/i2c/uda1342.h>
21 
22 #include "go7007-priv.h"
23 
24 static unsigned int assume_endura;
25 module_param(assume_endura, int, 0644);
26 MODULE_PARM_DESC(assume_endura,
27 			"when probing fails, hardware is a Pelco Endura");
28 
29 /* #define GO7007_I2C_DEBUG */ /* for debugging the EZ-USB I2C adapter */
30 
31 #define	HPI_STATUS_ADDR	0xFFF4
32 #define	INT_PARAM_ADDR	0xFFF6
33 #define	INT_INDEX_ADDR	0xFFF8
34 
35 /*
36  * Pipes on EZ-USB interface:
37  *	0 snd - Control
38  *	0 rcv - Control
39  *	2 snd - Download firmware (control)
40  *	4 rcv - Read Interrupt (interrupt)
41  *	6 rcv - Read Video (bulk)
42  *	8 rcv - Read Audio (bulk)
43  */
44 
45 #define GO7007_USB_EZUSB		(1<<0)
46 #define GO7007_USB_EZUSB_I2C		(1<<1)
47 
48 struct go7007_usb_board {
49 	unsigned int flags;
50 	struct go7007_board_info main_info;
51 };
52 
53 struct go7007_usb {
54 	const struct go7007_usb_board *board;
55 	struct mutex i2c_lock;
56 	struct usb_device *usbdev;
57 	struct urb *video_urbs[8];
58 	struct urb *audio_urbs[8];
59 	struct urb *intr_urb;
60 };
61 
62 /*********************** Product specification data ***********************/
63 
64 static const struct go7007_usb_board board_matrix_ii = {
65 	.flags		= GO7007_USB_EZUSB,
66 	.main_info	= {
67 		.flags		 = GO7007_BOARD_HAS_AUDIO |
68 					GO7007_BOARD_USE_ONBOARD_I2C,
69 		.audio_flags	 = GO7007_AUDIO_I2S_MODE_1 |
70 					GO7007_AUDIO_WORD_16,
71 		.audio_rate	 = 48000,
72 		.audio_bclk_div	 = 8,
73 		.audio_main_div	 = 2,
74 		.hpi_buffer_cap  = 7,
75 		.sensor_flags	 = GO7007_SENSOR_656 |
76 					GO7007_SENSOR_VALID_ENABLE |
77 					GO7007_SENSOR_TV |
78 					GO7007_SENSOR_SAA7115 |
79 					GO7007_SENSOR_VBI |
80 					GO7007_SENSOR_SCALING,
81 		.num_i2c_devs	 = 1,
82 		.i2c_devs	 = {
83 			{
84 				.type	= "saa7115",
85 				.addr	= 0x20,
86 				.is_video = 1,
87 			},
88 		},
89 		.num_inputs	 = 2,
90 		.inputs		 = {
91 			{
92 				.video_input	= 0,
93 				.name		= "Composite",
94 			},
95 			{
96 				.video_input	= 9,
97 				.name		= "S-Video",
98 			},
99 		},
100 		.video_config	= SAA7115_IDQ_IS_DEFAULT,
101 	},
102 };
103 
104 static const struct go7007_usb_board board_matrix_reload = {
105 	.flags		= GO7007_USB_EZUSB,
106 	.main_info	= {
107 		.flags		 = GO7007_BOARD_HAS_AUDIO |
108 					GO7007_BOARD_USE_ONBOARD_I2C,
109 		.audio_flags	 = GO7007_AUDIO_I2S_MODE_1 |
110 					GO7007_AUDIO_I2S_MASTER |
111 					GO7007_AUDIO_WORD_16,
112 		.audio_rate	 = 48000,
113 		.audio_bclk_div	 = 8,
114 		.audio_main_div	 = 2,
115 		.hpi_buffer_cap  = 7,
116 		.sensor_flags	 = GO7007_SENSOR_656 |
117 					GO7007_SENSOR_TV,
118 		.num_i2c_devs	 = 1,
119 		.i2c_devs	 = {
120 			{
121 				.type	= "saa7113",
122 				.addr	= 0x25,
123 				.is_video = 1,
124 			},
125 		},
126 		.num_inputs	 = 2,
127 		.inputs		 = {
128 			{
129 				.video_input	= 0,
130 				.name		= "Composite",
131 			},
132 			{
133 				.video_input	= 9,
134 				.name		= "S-Video",
135 			},
136 		},
137 		.video_config	= SAA7115_IDQ_IS_DEFAULT,
138 	},
139 };
140 
141 static const struct go7007_usb_board board_star_trek = {
142 	.flags		= GO7007_USB_EZUSB | GO7007_USB_EZUSB_I2C,
143 	.main_info	= {
144 		.flags		 = GO7007_BOARD_HAS_AUDIO, /* |
145 					GO7007_BOARD_HAS_TUNER, */
146 		.sensor_flags	 = GO7007_SENSOR_656 |
147 					GO7007_SENSOR_VALID_ENABLE |
148 					GO7007_SENSOR_TV |
149 					GO7007_SENSOR_SAA7115 |
150 					GO7007_SENSOR_VBI |
151 					GO7007_SENSOR_SCALING,
152 		.audio_flags	 = GO7007_AUDIO_I2S_MODE_1 |
153 					GO7007_AUDIO_WORD_16,
154 		.audio_bclk_div	 = 8,
155 		.audio_main_div	 = 2,
156 		.hpi_buffer_cap  = 7,
157 		.num_i2c_devs	 = 1,
158 		.i2c_devs	 = {
159 			{
160 				.type	= "saa7115",
161 				.addr	= 0x20,
162 				.is_video = 1,
163 			},
164 		},
165 		.num_inputs	 = 2,
166 		.inputs		 = {
167 		/*	{
168 		 *		.video_input	= 3,
169 		 *		.audio_index	= AUDIO_TUNER,
170 		 *		.name		= "Tuner",
171 		 *	},
172 		 */
173 			{
174 				.video_input	= 1,
175 			/*	.audio_index	= AUDIO_EXTERN, */
176 				.name		= "Composite",
177 			},
178 			{
179 				.video_input	= 8,
180 			/*	.audio_index	= AUDIO_EXTERN, */
181 				.name		= "S-Video",
182 			},
183 		},
184 		.video_config	= SAA7115_IDQ_IS_DEFAULT,
185 	},
186 };
187 
188 static const struct go7007_usb_board board_px_tv402u = {
189 	.flags		= GO7007_USB_EZUSB | GO7007_USB_EZUSB_I2C,
190 	.main_info	= {
191 		.flags		 = GO7007_BOARD_HAS_AUDIO |
192 					GO7007_BOARD_HAS_TUNER,
193 		.sensor_flags	 = GO7007_SENSOR_656 |
194 					GO7007_SENSOR_VALID_ENABLE |
195 					GO7007_SENSOR_TV |
196 					GO7007_SENSOR_SAA7115 |
197 					GO7007_SENSOR_VBI |
198 					GO7007_SENSOR_SCALING,
199 		.audio_flags	 = GO7007_AUDIO_I2S_MODE_1 |
200 					GO7007_AUDIO_WORD_16,
201 		.audio_bclk_div	 = 8,
202 		.audio_main_div	 = 2,
203 		.hpi_buffer_cap  = 7,
204 		.num_i2c_devs	 = 5,
205 		.i2c_devs	 = {
206 			{
207 				.type	= "saa7115",
208 				.addr	= 0x20,
209 				.is_video = 1,
210 			},
211 			{
212 				.type	= "uda1342",
213 				.addr	= 0x1a,
214 				.is_audio = 1,
215 			},
216 			{
217 				.type	= "tuner",
218 				.addr	= 0x60,
219 			},
220 			{
221 				.type	= "tuner",
222 				.addr	= 0x43,
223 			},
224 			{
225 				.type	= "sony-btf-mpx",
226 				.addr	= 0x44,
227 			},
228 		},
229 		.num_inputs	 = 3,
230 		.inputs		 = {
231 			{
232 				.video_input	= 3,
233 				.audio_index	= 0,
234 				.name		= "Tuner",
235 			},
236 			{
237 				.video_input	= 1,
238 				.audio_index	= 1,
239 				.name		= "Composite",
240 			},
241 			{
242 				.video_input	= 8,
243 				.audio_index	= 1,
244 				.name		= "S-Video",
245 			},
246 		},
247 		.video_config	= SAA7115_IDQ_IS_DEFAULT,
248 		.num_aud_inputs	 = 2,
249 		.aud_inputs	 = {
250 			{
251 				.audio_input	= UDA1342_IN2,
252 				.name		= "Tuner",
253 			},
254 			{
255 				.audio_input	= UDA1342_IN1,
256 				.name		= "Line In",
257 			},
258 		},
259 	},
260 };
261 
262 static const struct go7007_usb_board board_xmen = {
263 	.flags		= 0,
264 	.main_info	= {
265 		.flags		  = GO7007_BOARD_USE_ONBOARD_I2C,
266 		.hpi_buffer_cap   = 0,
267 		.sensor_flags	  = GO7007_SENSOR_VREF_POLAR,
268 		.sensor_width	  = 320,
269 		.sensor_height	  = 240,
270 		.sensor_framerate = 30030,
271 		.audio_flags	  = GO7007_AUDIO_ONE_CHANNEL |
272 					GO7007_AUDIO_I2S_MODE_3 |
273 					GO7007_AUDIO_WORD_14 |
274 					GO7007_AUDIO_I2S_MASTER |
275 					GO7007_AUDIO_BCLK_POLAR |
276 					GO7007_AUDIO_OKI_MODE,
277 		.audio_rate	  = 8000,
278 		.audio_bclk_div	  = 48,
279 		.audio_main_div	  = 1,
280 		.num_i2c_devs	  = 1,
281 		.i2c_devs	  = {
282 			{
283 				.type	= "ov7640",
284 				.addr	= 0x21,
285 			},
286 		},
287 		.num_inputs	  = 1,
288 		.inputs		  = {
289 			{
290 				.name		= "Camera",
291 			},
292 		},
293 	},
294 };
295 
296 static const struct go7007_usb_board board_matrix_revolution = {
297 	.flags		= GO7007_USB_EZUSB,
298 	.main_info	= {
299 		.flags		 = GO7007_BOARD_HAS_AUDIO |
300 					GO7007_BOARD_USE_ONBOARD_I2C,
301 		.audio_flags	 = GO7007_AUDIO_I2S_MODE_1 |
302 					GO7007_AUDIO_I2S_MASTER |
303 					GO7007_AUDIO_WORD_16,
304 		.audio_rate	 = 48000,
305 		.audio_bclk_div	 = 8,
306 		.audio_main_div	 = 2,
307 		.hpi_buffer_cap  = 7,
308 		.sensor_flags	 = GO7007_SENSOR_656 |
309 					GO7007_SENSOR_TV |
310 					GO7007_SENSOR_VBI,
311 		.num_i2c_devs	 = 1,
312 		.i2c_devs	 = {
313 			{
314 				.type	= "tw9903",
315 				.is_video = 1,
316 				.addr	= 0x44,
317 			},
318 		},
319 		.num_inputs	 = 2,
320 		.inputs		 = {
321 			{
322 				.video_input	= 2,
323 				.name		= "Composite",
324 			},
325 			{
326 				.video_input	= 8,
327 				.name		= "S-Video",
328 			},
329 		},
330 	},
331 };
332 
333 #if 0
334 static const struct go7007_usb_board board_lifeview_lr192 = {
335 	.flags		= GO7007_USB_EZUSB,
336 	.main_info	= {
337 		.flags		 = GO7007_BOARD_HAS_AUDIO |
338 					GO7007_BOARD_USE_ONBOARD_I2C,
339 		.audio_flags	 = GO7007_AUDIO_I2S_MODE_1 |
340 					GO7007_AUDIO_WORD_16,
341 		.audio_rate	 = 48000,
342 		.audio_bclk_div	 = 8,
343 		.audio_main_div	 = 2,
344 		.hpi_buffer_cap  = 7,
345 		.sensor_flags	 = GO7007_SENSOR_656 |
346 					GO7007_SENSOR_VALID_ENABLE |
347 					GO7007_SENSOR_TV |
348 					GO7007_SENSOR_VBI |
349 					GO7007_SENSOR_SCALING,
350 		.num_i2c_devs	 = 0,
351 		.num_inputs	 = 1,
352 		.inputs		 = {
353 			{
354 				.video_input	= 0,
355 				.name		= "Composite",
356 			},
357 		},
358 	},
359 };
360 #endif
361 
362 static const struct go7007_usb_board board_endura = {
363 	.flags		= 0,
364 	.main_info	= {
365 		.flags		 = 0,
366 		.audio_flags	 = GO7007_AUDIO_I2S_MODE_1 |
367 					GO7007_AUDIO_I2S_MASTER |
368 					GO7007_AUDIO_WORD_16,
369 		.audio_rate	 = 8000,
370 		.audio_bclk_div	 = 48,
371 		.audio_main_div	 = 8,
372 		.hpi_buffer_cap  = 0,
373 		.sensor_flags	 = GO7007_SENSOR_656 |
374 					GO7007_SENSOR_TV,
375 		.sensor_h_offset = 8,
376 		.num_i2c_devs	 = 0,
377 		.num_inputs	 = 1,
378 		.inputs		 = {
379 			{
380 				.name		= "Camera",
381 			},
382 		},
383 	},
384 };
385 
386 static const struct go7007_usb_board board_adlink_mpg24 = {
387 	.flags		= 0,
388 	.main_info	= {
389 		.flags		 = GO7007_BOARD_USE_ONBOARD_I2C,
390 		.audio_flags	 = GO7007_AUDIO_I2S_MODE_1 |
391 					GO7007_AUDIO_I2S_MASTER |
392 					GO7007_AUDIO_WORD_16,
393 		.audio_rate	 = 48000,
394 		.audio_bclk_div	 = 8,
395 		.audio_main_div	 = 2,
396 		.hpi_buffer_cap  = 0,
397 		.sensor_flags	 = GO7007_SENSOR_656 |
398 					GO7007_SENSOR_TV |
399 					GO7007_SENSOR_VBI,
400 		.num_i2c_devs	 = 1,
401 		.i2c_devs	 = {
402 			{
403 				.type	= "tw2804",
404 				.addr	= 0x00, /* yes, really */
405 				.flags  = I2C_CLIENT_TEN,
406 				.is_video = 1,
407 			},
408 		},
409 		.num_inputs	 = 1,
410 		.inputs		 = {
411 			{
412 				.name		= "Composite",
413 			},
414 		},
415 	},
416 };
417 
418 static const struct go7007_usb_board board_sensoray_2250 = {
419 	.flags		= GO7007_USB_EZUSB | GO7007_USB_EZUSB_I2C,
420 	.main_info	= {
421 		.audio_flags	 = GO7007_AUDIO_I2S_MODE_1 |
422 					GO7007_AUDIO_I2S_MASTER |
423 					GO7007_AUDIO_WORD_16,
424 		.flags		 = GO7007_BOARD_HAS_AUDIO,
425 		.audio_rate	 = 48000,
426 		.audio_bclk_div	 = 8,
427 		.audio_main_div	 = 2,
428 		.hpi_buffer_cap  = 7,
429 		.sensor_flags	 = GO7007_SENSOR_656 |
430 					GO7007_SENSOR_TV,
431 		.num_i2c_devs	 = 1,
432 		.i2c_devs	 = {
433 			{
434 				.type	= "s2250",
435 				.addr	= 0x43,
436 				.is_video = 1,
437 				.is_audio = 1,
438 			},
439 		},
440 		.num_inputs	 = 2,
441 		.inputs		 = {
442 			{
443 				.video_input	= 0,
444 				.name		= "Composite",
445 			},
446 			{
447 				.video_input	= 1,
448 				.name		= "S-Video",
449 			},
450 		},
451 		.num_aud_inputs	 = 3,
452 		.aud_inputs	 = {
453 			{
454 				.audio_input	= 0,
455 				.name		= "Line In",
456 			},
457 			{
458 				.audio_input	= 1,
459 				.name		= "Mic",
460 			},
461 			{
462 				.audio_input	= 2,
463 				.name		= "Mic Boost",
464 			},
465 		},
466 	},
467 };
468 
469 static const struct go7007_usb_board board_ads_usbav_709 = {
470 	.flags		= GO7007_USB_EZUSB,
471 	.main_info	= {
472 		.flags		 = GO7007_BOARD_HAS_AUDIO |
473 					GO7007_BOARD_USE_ONBOARD_I2C,
474 		.audio_flags	 = GO7007_AUDIO_I2S_MODE_1 |
475 					GO7007_AUDIO_I2S_MASTER |
476 					GO7007_AUDIO_WORD_16,
477 		.audio_rate	 = 48000,
478 		.audio_bclk_div	 = 8,
479 		.audio_main_div	 = 2,
480 		.hpi_buffer_cap  = 7,
481 		.sensor_flags	 = GO7007_SENSOR_656 |
482 					GO7007_SENSOR_TV |
483 					GO7007_SENSOR_VBI,
484 		.num_i2c_devs	 = 1,
485 		.i2c_devs	 = {
486 			{
487 				.type	= "tw9906",
488 				.is_video = 1,
489 				.addr	= 0x44,
490 			},
491 		},
492 		.num_inputs	 = 2,
493 		.inputs		 = {
494 			{
495 				.video_input	= 0,
496 				.name		= "Composite",
497 			},
498 			{
499 				.video_input	= 10,
500 				.name		= "S-Video",
501 			},
502 		},
503 	},
504 };
505 
506 static const struct usb_device_id go7007_usb_id_table[] = {
507 	{
508 		.match_flags	= USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION |
509 					USB_DEVICE_ID_MATCH_INT_INFO,
510 		.idVendor	= 0x0eb1,  /* Vendor ID of WIS Technologies */
511 		.idProduct	= 0x7007,  /* Product ID of GO7007SB chip */
512 		.bcdDevice_lo	= 0x200,   /* Revision number of XMen */
513 		.bcdDevice_hi	= 0x200,
514 		.bInterfaceClass	= 255,
515 		.bInterfaceSubClass	= 0,
516 		.bInterfaceProtocol	= 255,
517 		.driver_info	= (kernel_ulong_t)GO7007_BOARDID_XMEN,
518 	},
519 	{
520 		.match_flags	= USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION,
521 		.idVendor	= 0x0eb1,  /* Vendor ID of WIS Technologies */
522 		.idProduct	= 0x7007,  /* Product ID of GO7007SB chip */
523 		.bcdDevice_lo	= 0x202,   /* Revision number of Matrix II */
524 		.bcdDevice_hi	= 0x202,
525 		.driver_info	= (kernel_ulong_t)GO7007_BOARDID_MATRIX_II,
526 	},
527 	{
528 		.match_flags	= USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION,
529 		.idVendor	= 0x0eb1,  /* Vendor ID of WIS Technologies */
530 		.idProduct	= 0x7007,  /* Product ID of GO7007SB chip */
531 		.bcdDevice_lo	= 0x204,   /* Revision number of Matrix */
532 		.bcdDevice_hi	= 0x204,   /*     Reloaded */
533 		.driver_info	= (kernel_ulong_t)GO7007_BOARDID_MATRIX_RELOAD,
534 	},
535 	{
536 		.match_flags	= USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION |
537 					USB_DEVICE_ID_MATCH_INT_INFO,
538 		.idVendor	= 0x0eb1,  /* Vendor ID of WIS Technologies */
539 		.idProduct	= 0x7007,  /* Product ID of GO7007SB chip */
540 		.bcdDevice_lo	= 0x205,   /* Revision number of XMen-II */
541 		.bcdDevice_hi	= 0x205,
542 		.bInterfaceClass	= 255,
543 		.bInterfaceSubClass	= 0,
544 		.bInterfaceProtocol	= 255,
545 		.driver_info	= (kernel_ulong_t)GO7007_BOARDID_XMEN_II,
546 	},
547 	{
548 		.match_flags	= USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION,
549 		.idVendor	= 0x0eb1,  /* Vendor ID of WIS Technologies */
550 		.idProduct	= 0x7007,  /* Product ID of GO7007SB chip */
551 		.bcdDevice_lo	= 0x208,   /* Revision number of Star Trek */
552 		.bcdDevice_hi	= 0x208,
553 		.driver_info	= (kernel_ulong_t)GO7007_BOARDID_STAR_TREK,
554 	},
555 	{
556 		.match_flags	= USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION |
557 					USB_DEVICE_ID_MATCH_INT_INFO,
558 		.idVendor	= 0x0eb1,  /* Vendor ID of WIS Technologies */
559 		.idProduct	= 0x7007,  /* Product ID of GO7007SB chip */
560 		.bcdDevice_lo	= 0x209,   /* Revision number of XMen-III */
561 		.bcdDevice_hi	= 0x209,
562 		.bInterfaceClass	= 255,
563 		.bInterfaceSubClass	= 0,
564 		.bInterfaceProtocol	= 255,
565 		.driver_info	= (kernel_ulong_t)GO7007_BOARDID_XMEN_III,
566 	},
567 	{
568 		.match_flags	= USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION,
569 		.idVendor	= 0x0eb1,  /* Vendor ID of WIS Technologies */
570 		.idProduct	= 0x7007,  /* Product ID of GO7007SB chip */
571 		.bcdDevice_lo	= 0x210,   /* Revision number of Matrix */
572 		.bcdDevice_hi	= 0x210,   /*     Revolution */
573 		.driver_info	= (kernel_ulong_t)GO7007_BOARDID_MATRIX_REV,
574 	},
575 	{
576 		.match_flags	= USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION,
577 		.idVendor	= 0x093b,  /* Vendor ID of Plextor */
578 		.idProduct	= 0xa102,  /* Product ID of M402U */
579 		.bcdDevice_lo	= 0x1,	   /* revision number of Blueberry */
580 		.bcdDevice_hi	= 0x1,
581 		.driver_info	= (kernel_ulong_t)GO7007_BOARDID_PX_M402U,
582 	},
583 	{
584 		.match_flags	= USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION,
585 		.idVendor	= 0x093b,  /* Vendor ID of Plextor */
586 		.idProduct	= 0xa104,  /* Product ID of TV402U */
587 		.bcdDevice_lo	= 0x1,
588 		.bcdDevice_hi	= 0x1,
589 		.driver_info	= (kernel_ulong_t)GO7007_BOARDID_PX_TV402U,
590 	},
591 	{
592 		.match_flags	= USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION,
593 		.idVendor	= 0x10fd,  /* Vendor ID of Anubis Electronics */
594 		.idProduct	= 0xde00,  /* Product ID of Lifeview LR192 */
595 		.bcdDevice_lo	= 0x1,
596 		.bcdDevice_hi	= 0x1,
597 		.driver_info	= (kernel_ulong_t)GO7007_BOARDID_LIFEVIEW_LR192,
598 	},
599 	{
600 		.match_flags	= USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION,
601 		.idVendor	= 0x1943,  /* Vendor ID Sensoray */
602 		.idProduct	= 0x2250,  /* Product ID of 2250/2251 */
603 		.bcdDevice_lo	= 0x1,
604 		.bcdDevice_hi	= 0x1,
605 		.driver_info	= (kernel_ulong_t)GO7007_BOARDID_SENSORAY_2250,
606 	},
607 	{
608 		.match_flags	= USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION,
609 		.idVendor	= 0x06e1,  /* Vendor ID of ADS Technologies */
610 		.idProduct	= 0x0709,  /* Product ID of DVD Xpress DX2 */
611 		.bcdDevice_lo	= 0x204,
612 		.bcdDevice_hi	= 0x204,
613 		.driver_info	= (kernel_ulong_t)GO7007_BOARDID_ADS_USBAV_709,
614 	},
615 	{ }					/* Terminating entry */
616 };
617 
618 MODULE_DEVICE_TABLE(usb, go7007_usb_id_table);
619 
620 /********************* Driver for EZ-USB HPI interface *********************/
621 
622 static int go7007_usb_vendor_request(struct go7007 *go, int request,
623 		int value, int index, void *transfer_buffer, int length, int in)
624 {
625 	struct go7007_usb *usb = go->hpi_context;
626 	int timeout = 5000;
627 
628 	if (in) {
629 		return usb_control_msg(usb->usbdev,
630 				usb_rcvctrlpipe(usb->usbdev, 0), request,
631 				USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
632 				value, index, transfer_buffer, length, timeout);
633 	} else {
634 		return usb_control_msg(usb->usbdev,
635 				usb_sndctrlpipe(usb->usbdev, 0), request,
636 				USB_TYPE_VENDOR | USB_RECIP_DEVICE,
637 				value, index, transfer_buffer, length, timeout);
638 	}
639 }
640 
641 static int go7007_usb_interface_reset(struct go7007 *go)
642 {
643 	struct go7007_usb *usb = go->hpi_context;
644 	u16 intr_val, intr_data;
645 
646 	if (go->status == STATUS_SHUTDOWN)
647 		return -1;
648 	/* Reset encoder */
649 	if (go7007_write_interrupt(go, 0x0001, 0x0001) < 0)
650 		return -1;
651 	msleep(100);
652 
653 	if (usb->board->flags & GO7007_USB_EZUSB) {
654 		/* Reset buffer in EZ-USB */
655 		pr_debug("resetting EZ-USB buffers\n");
656 		if (go7007_usb_vendor_request(go, 0x10, 0, 0, NULL, 0, 0) < 0 ||
657 		    go7007_usb_vendor_request(go, 0x10, 0, 0, NULL, 0, 0) < 0)
658 			return -1;
659 
660 		/* Reset encoder again */
661 		if (go7007_write_interrupt(go, 0x0001, 0x0001) < 0)
662 			return -1;
663 		msleep(100);
664 	}
665 
666 	/* Wait for an interrupt to indicate successful hardware reset */
667 	if (go7007_read_interrupt(go, &intr_val, &intr_data) < 0 ||
668 			(intr_val & ~0x1) != 0x55aa) {
669 		dev_err(go->dev, "unable to reset the USB interface\n");
670 		return -1;
671 	}
672 	return 0;
673 }
674 
675 static int go7007_usb_ezusb_write_interrupt(struct go7007 *go,
676 						int addr, int data)
677 {
678 	struct go7007_usb *usb = go->hpi_context;
679 	int i, r;
680 	u16 status_reg = 0;
681 	int timeout = 500;
682 
683 	pr_debug("WriteInterrupt: %04x %04x\n", addr, data);
684 
685 	for (i = 0; i < 100; ++i) {
686 		r = usb_control_msg(usb->usbdev,
687 				usb_rcvctrlpipe(usb->usbdev, 0), 0x14,
688 				USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
689 				0, HPI_STATUS_ADDR, go->usb_buf,
690 				sizeof(status_reg), timeout);
691 		if (r < 0)
692 			break;
693 		status_reg = le16_to_cpu(*((__le16 *)go->usb_buf));
694 		if (!(status_reg & 0x0010))
695 			break;
696 		msleep(10);
697 	}
698 	if (r < 0)
699 		goto write_int_error;
700 	if (i == 100) {
701 		dev_err(go->dev, "device is hung, status reg = 0x%04x\n", status_reg);
702 		return -1;
703 	}
704 	r = usb_control_msg(usb->usbdev, usb_sndctrlpipe(usb->usbdev, 0), 0x12,
705 			USB_TYPE_VENDOR | USB_RECIP_DEVICE, data,
706 			INT_PARAM_ADDR, NULL, 0, timeout);
707 	if (r < 0)
708 		goto write_int_error;
709 	r = usb_control_msg(usb->usbdev, usb_sndctrlpipe(usb->usbdev, 0),
710 			0x12, USB_TYPE_VENDOR | USB_RECIP_DEVICE, addr,
711 			INT_INDEX_ADDR, NULL, 0, timeout);
712 	if (r < 0)
713 		goto write_int_error;
714 	return 0;
715 
716 write_int_error:
717 	dev_err(go->dev, "error in WriteInterrupt: %d\n", r);
718 	return r;
719 }
720 
721 static int go7007_usb_onboard_write_interrupt(struct go7007 *go,
722 						int addr, int data)
723 {
724 	struct go7007_usb *usb = go->hpi_context;
725 	int r;
726 	int timeout = 500;
727 
728 	pr_debug("WriteInterrupt: %04x %04x\n", addr, data);
729 
730 	go->usb_buf[0] = data & 0xff;
731 	go->usb_buf[1] = data >> 8;
732 	go->usb_buf[2] = addr & 0xff;
733 	go->usb_buf[3] = addr >> 8;
734 	go->usb_buf[4] = go->usb_buf[5] = go->usb_buf[6] = go->usb_buf[7] = 0;
735 	r = usb_control_msg(usb->usbdev, usb_sndctrlpipe(usb->usbdev, 2), 0x00,
736 			USB_TYPE_VENDOR | USB_RECIP_ENDPOINT, 0x55aa,
737 			0xf0f0, go->usb_buf, 8, timeout);
738 	if (r < 0) {
739 		dev_err(go->dev, "error in WriteInterrupt: %d\n", r);
740 		return r;
741 	}
742 	return 0;
743 }
744 
745 static void go7007_usb_readinterrupt_complete(struct urb *urb)
746 {
747 	struct go7007 *go = (struct go7007 *)urb->context;
748 	__le16 *regs = (__le16 *)urb->transfer_buffer;
749 	int status = urb->status;
750 
751 	if (status) {
752 		if (status != -ESHUTDOWN &&
753 				go->status != STATUS_SHUTDOWN) {
754 			dev_err(go->dev, "error in read interrupt: %d\n", urb->status);
755 		} else {
756 			wake_up(&go->interrupt_waitq);
757 			return;
758 		}
759 	} else if (urb->actual_length != urb->transfer_buffer_length) {
760 		dev_err(go->dev, "short read in interrupt pipe!\n");
761 	} else {
762 		go->interrupt_available = 1;
763 		go->interrupt_data = __le16_to_cpu(regs[0]);
764 		go->interrupt_value = __le16_to_cpu(regs[1]);
765 		pr_debug("ReadInterrupt: %04x %04x\n",
766 				go->interrupt_value, go->interrupt_data);
767 	}
768 
769 	wake_up(&go->interrupt_waitq);
770 }
771 
772 static int go7007_usb_read_interrupt(struct go7007 *go)
773 {
774 	struct go7007_usb *usb = go->hpi_context;
775 	int r;
776 
777 	r = usb_submit_urb(usb->intr_urb, GFP_KERNEL);
778 	if (r < 0) {
779 		dev_err(go->dev, "unable to submit interrupt urb: %d\n", r);
780 		return r;
781 	}
782 	return 0;
783 }
784 
785 static void go7007_usb_read_video_pipe_complete(struct urb *urb)
786 {
787 	struct go7007 *go = (struct go7007 *)urb->context;
788 	int r, status = urb->status;
789 
790 	if (!vb2_is_streaming(&go->vidq)) {
791 		wake_up_interruptible(&go->frame_waitq);
792 		return;
793 	}
794 	if (status) {
795 		dev_err(go->dev, "error in video pipe: %d\n", status);
796 		return;
797 	}
798 	if (urb->actual_length != urb->transfer_buffer_length) {
799 		dev_err(go->dev, "short read in video pipe!\n");
800 		return;
801 	}
802 	go7007_parse_video_stream(go, urb->transfer_buffer, urb->actual_length);
803 	r = usb_submit_urb(urb, GFP_ATOMIC);
804 	if (r < 0)
805 		dev_err(go->dev, "error in video pipe: %d\n", r);
806 }
807 
808 static void go7007_usb_read_audio_pipe_complete(struct urb *urb)
809 {
810 	struct go7007 *go = (struct go7007 *)urb->context;
811 	int r, status = urb->status;
812 
813 	if (!vb2_is_streaming(&go->vidq))
814 		return;
815 	if (status) {
816 		dev_err(go->dev, "error in audio pipe: %d\n",
817 			status);
818 		return;
819 	}
820 	if (urb->actual_length != urb->transfer_buffer_length) {
821 		dev_err(go->dev, "short read in audio pipe!\n");
822 		return;
823 	}
824 	if (go->audio_deliver != NULL)
825 		go->audio_deliver(go, urb->transfer_buffer, urb->actual_length);
826 	r = usb_submit_urb(urb, GFP_ATOMIC);
827 	if (r < 0)
828 		dev_err(go->dev, "error in audio pipe: %d\n", r);
829 }
830 
831 static int go7007_usb_stream_start(struct go7007 *go)
832 {
833 	struct go7007_usb *usb = go->hpi_context;
834 	int i, r;
835 
836 	for (i = 0; i < 8; ++i) {
837 		r = usb_submit_urb(usb->video_urbs[i], GFP_KERNEL);
838 		if (r < 0) {
839 			dev_err(go->dev, "error submitting video urb %d: %d\n", i, r);
840 			goto video_submit_failed;
841 		}
842 	}
843 	if (!go->audio_enabled)
844 		return 0;
845 
846 	for (i = 0; i < 8; ++i) {
847 		r = usb_submit_urb(usb->audio_urbs[i], GFP_KERNEL);
848 		if (r < 0) {
849 			dev_err(go->dev, "error submitting audio urb %d: %d\n", i, r);
850 			goto audio_submit_failed;
851 		}
852 	}
853 	return 0;
854 
855 audio_submit_failed:
856 	for (i = 0; i < 7; ++i)
857 		usb_kill_urb(usb->audio_urbs[i]);
858 video_submit_failed:
859 	for (i = 0; i < 8; ++i)
860 		usb_kill_urb(usb->video_urbs[i]);
861 	return -1;
862 }
863 
864 static int go7007_usb_stream_stop(struct go7007 *go)
865 {
866 	struct go7007_usb *usb = go->hpi_context;
867 	int i;
868 
869 	if (go->status == STATUS_SHUTDOWN)
870 		return 0;
871 	for (i = 0; i < 8; ++i)
872 		usb_kill_urb(usb->video_urbs[i]);
873 	if (go->audio_enabled)
874 		for (i = 0; i < 8; ++i)
875 			usb_kill_urb(usb->audio_urbs[i]);
876 	return 0;
877 }
878 
879 static int go7007_usb_send_firmware(struct go7007 *go, u8 *data, int len)
880 {
881 	struct go7007_usb *usb = go->hpi_context;
882 	int transferred, pipe;
883 	int timeout = 500;
884 
885 	pr_debug("DownloadBuffer sending %d bytes\n", len);
886 
887 	if (usb->board->flags & GO7007_USB_EZUSB)
888 		pipe = usb_sndbulkpipe(usb->usbdev, 2);
889 	else
890 		pipe = usb_sndbulkpipe(usb->usbdev, 3);
891 
892 	return usb_bulk_msg(usb->usbdev, pipe, data, len,
893 					&transferred, timeout);
894 }
895 
896 static void go7007_usb_release(struct go7007 *go)
897 {
898 	struct go7007_usb *usb = go->hpi_context;
899 	struct urb *vurb, *aurb;
900 	int i;
901 
902 	if (usb->intr_urb) {
903 		usb_kill_urb(usb->intr_urb);
904 		kfree(usb->intr_urb->transfer_buffer);
905 		usb_free_urb(usb->intr_urb);
906 	}
907 
908 	/* Free USB-related structs */
909 	for (i = 0; i < 8; ++i) {
910 		vurb = usb->video_urbs[i];
911 		if (vurb) {
912 			usb_kill_urb(vurb);
913 			kfree(vurb->transfer_buffer);
914 			usb_free_urb(vurb);
915 		}
916 		aurb = usb->audio_urbs[i];
917 		if (aurb) {
918 			usb_kill_urb(aurb);
919 			kfree(aurb->transfer_buffer);
920 			usb_free_urb(aurb);
921 		}
922 	}
923 
924 	kfree(go->hpi_context);
925 }
926 
927 static const struct go7007_hpi_ops go7007_usb_ezusb_hpi_ops = {
928 	.interface_reset	= go7007_usb_interface_reset,
929 	.write_interrupt	= go7007_usb_ezusb_write_interrupt,
930 	.read_interrupt		= go7007_usb_read_interrupt,
931 	.stream_start		= go7007_usb_stream_start,
932 	.stream_stop		= go7007_usb_stream_stop,
933 	.send_firmware		= go7007_usb_send_firmware,
934 	.release		= go7007_usb_release,
935 };
936 
937 static const struct go7007_hpi_ops go7007_usb_onboard_hpi_ops = {
938 	.interface_reset	= go7007_usb_interface_reset,
939 	.write_interrupt	= go7007_usb_onboard_write_interrupt,
940 	.read_interrupt		= go7007_usb_read_interrupt,
941 	.stream_start		= go7007_usb_stream_start,
942 	.stream_stop		= go7007_usb_stream_stop,
943 	.send_firmware		= go7007_usb_send_firmware,
944 	.release		= go7007_usb_release,
945 };
946 
947 /********************* Driver for EZ-USB I2C adapter *********************/
948 
949 static int go7007_usb_i2c_master_xfer(struct i2c_adapter *adapter,
950 					struct i2c_msg msgs[], int num)
951 {
952 	struct go7007 *go = i2c_get_adapdata(adapter);
953 	struct go7007_usb *usb = go->hpi_context;
954 	u8 *buf = go->usb_buf;
955 	int buf_len, i;
956 	int ret = -EIO;
957 
958 	if (go->status == STATUS_SHUTDOWN)
959 		return -ENODEV;
960 
961 	mutex_lock(&usb->i2c_lock);
962 
963 	for (i = 0; i < num; ++i) {
964 		/* The hardware command is "write some bytes then read some
965 		 * bytes", so we try to coalesce a write followed by a read
966 		 * into a single USB transaction */
967 		if (i + 1 < num && msgs[i].addr == msgs[i + 1].addr &&
968 				!(msgs[i].flags & I2C_M_RD) &&
969 				(msgs[i + 1].flags & I2C_M_RD)) {
970 #ifdef GO7007_I2C_DEBUG
971 			pr_debug("i2c write/read %d/%d bytes on %02x\n",
972 				msgs[i].len, msgs[i + 1].len, msgs[i].addr);
973 #endif
974 			buf[0] = 0x01;
975 			buf[1] = msgs[i].len + 1;
976 			buf[2] = msgs[i].addr << 1;
977 			memcpy(&buf[3], msgs[i].buf, msgs[i].len);
978 			buf_len = msgs[i].len + 3;
979 			buf[buf_len++] = msgs[++i].len;
980 		} else if (msgs[i].flags & I2C_M_RD) {
981 #ifdef GO7007_I2C_DEBUG
982 			pr_debug("i2c read %d bytes on %02x\n",
983 					msgs[i].len, msgs[i].addr);
984 #endif
985 			buf[0] = 0x01;
986 			buf[1] = 1;
987 			buf[2] = msgs[i].addr << 1;
988 			buf[3] = msgs[i].len;
989 			buf_len = 4;
990 		} else {
991 #ifdef GO7007_I2C_DEBUG
992 			pr_debug("i2c write %d bytes on %02x\n",
993 					msgs[i].len, msgs[i].addr);
994 #endif
995 			buf[0] = 0x00;
996 			buf[1] = msgs[i].len + 1;
997 			buf[2] = msgs[i].addr << 1;
998 			memcpy(&buf[3], msgs[i].buf, msgs[i].len);
999 			buf_len = msgs[i].len + 3;
1000 			buf[buf_len++] = 0;
1001 		}
1002 		if (go7007_usb_vendor_request(go, 0x24, 0, 0,
1003 						buf, buf_len, 0) < 0)
1004 			goto i2c_done;
1005 		if (msgs[i].flags & I2C_M_RD) {
1006 			memset(buf, 0, msgs[i].len + 1);
1007 			if (go7007_usb_vendor_request(go, 0x25, 0, 0, buf,
1008 						msgs[i].len + 1, 1) < 0)
1009 				goto i2c_done;
1010 			memcpy(msgs[i].buf, buf + 1, msgs[i].len);
1011 		}
1012 	}
1013 	ret = num;
1014 
1015 i2c_done:
1016 	mutex_unlock(&usb->i2c_lock);
1017 	return ret;
1018 }
1019 
1020 static u32 go7007_usb_functionality(struct i2c_adapter *adapter)
1021 {
1022 	/* No errors are reported by the hardware, so we don't bother
1023 	 * supporting quick writes to avoid confusing probing */
1024 	return (I2C_FUNC_SMBUS_EMUL) & ~I2C_FUNC_SMBUS_QUICK;
1025 }
1026 
1027 static const struct i2c_algorithm go7007_usb_algo = {
1028 	.master_xfer	= go7007_usb_i2c_master_xfer,
1029 	.functionality	= go7007_usb_functionality,
1030 };
1031 
1032 static struct i2c_adapter go7007_usb_adap_templ = {
1033 	.owner			= THIS_MODULE,
1034 	.name			= "WIS GO7007SB EZ-USB",
1035 	.algo			= &go7007_usb_algo,
1036 };
1037 
1038 /********************* USB add/remove functions *********************/
1039 
1040 static int go7007_usb_probe(struct usb_interface *intf,
1041 		const struct usb_device_id *id)
1042 {
1043 	struct go7007 *go;
1044 	struct go7007_usb *usb;
1045 	const struct go7007_usb_board *board;
1046 	struct usb_device *usbdev = interface_to_usbdev(intf);
1047 	struct usb_host_endpoint *ep;
1048 	unsigned num_i2c_devs;
1049 	char *name;
1050 	int video_pipe, i, v_urb_len;
1051 
1052 	pr_debug("probing new GO7007 USB board\n");
1053 
1054 	switch (id->driver_info) {
1055 	case GO7007_BOARDID_MATRIX_II:
1056 		name = "WIS Matrix II or compatible";
1057 		board = &board_matrix_ii;
1058 		break;
1059 	case GO7007_BOARDID_MATRIX_RELOAD:
1060 		name = "WIS Matrix Reloaded or compatible";
1061 		board = &board_matrix_reload;
1062 		break;
1063 	case GO7007_BOARDID_MATRIX_REV:
1064 		name = "WIS Matrix Revolution or compatible";
1065 		board = &board_matrix_revolution;
1066 		break;
1067 	case GO7007_BOARDID_STAR_TREK:
1068 		name = "WIS Star Trek or compatible";
1069 		board = &board_star_trek;
1070 		break;
1071 	case GO7007_BOARDID_XMEN:
1072 		name = "WIS XMen or compatible";
1073 		board = &board_xmen;
1074 		break;
1075 	case GO7007_BOARDID_XMEN_II:
1076 		name = "WIS XMen II or compatible";
1077 		board = &board_xmen;
1078 		break;
1079 	case GO7007_BOARDID_XMEN_III:
1080 		name = "WIS XMen III or compatible";
1081 		board = &board_xmen;
1082 		break;
1083 	case GO7007_BOARDID_PX_M402U:
1084 		name = "Plextor PX-M402U";
1085 		board = &board_matrix_ii;
1086 		break;
1087 	case GO7007_BOARDID_PX_TV402U:
1088 		name = "Plextor PX-TV402U (unknown tuner)";
1089 		board = &board_px_tv402u;
1090 		break;
1091 	case GO7007_BOARDID_LIFEVIEW_LR192:
1092 		dev_err(&intf->dev, "The Lifeview TV Walker Ultra is not supported. Sorry!\n");
1093 		return -ENODEV;
1094 #if 0
1095 		name = "Lifeview TV Walker Ultra";
1096 		board = &board_lifeview_lr192;
1097 #endif
1098 		break;
1099 	case GO7007_BOARDID_SENSORAY_2250:
1100 		dev_info(&intf->dev, "Sensoray 2250 found\n");
1101 		name = "Sensoray 2250/2251";
1102 		board = &board_sensoray_2250;
1103 		break;
1104 	case GO7007_BOARDID_ADS_USBAV_709:
1105 		name = "ADS Tech DVD Xpress DX2";
1106 		board = &board_ads_usbav_709;
1107 		break;
1108 	default:
1109 		dev_err(&intf->dev, "unknown board ID %d!\n",
1110 				(unsigned int)id->driver_info);
1111 		return -ENODEV;
1112 	}
1113 
1114 	go = go7007_alloc(&board->main_info, &intf->dev);
1115 	if (go == NULL)
1116 		return -ENOMEM;
1117 
1118 	usb = kzalloc(sizeof(struct go7007_usb), GFP_KERNEL);
1119 	if (usb == NULL) {
1120 		kfree(go);
1121 		return -ENOMEM;
1122 	}
1123 
1124 	usb->board = board;
1125 	usb->usbdev = usbdev;
1126 	usb_make_path(usbdev, go->bus_info, sizeof(go->bus_info));
1127 	go->board_id = id->driver_info;
1128 	strscpy(go->name, name, sizeof(go->name));
1129 	if (board->flags & GO7007_USB_EZUSB)
1130 		go->hpi_ops = &go7007_usb_ezusb_hpi_ops;
1131 	else
1132 		go->hpi_ops = &go7007_usb_onboard_hpi_ops;
1133 	go->hpi_context = usb;
1134 
1135 	ep = usb->usbdev->ep_in[4];
1136 	if (!ep)
1137 		goto allocfail;
1138 
1139 	/* Allocate the URB and buffer for receiving incoming interrupts */
1140 	usb->intr_urb = usb_alloc_urb(0, GFP_KERNEL);
1141 	if (usb->intr_urb == NULL)
1142 		goto allocfail;
1143 	usb->intr_urb->transfer_buffer = kmalloc_array(2, sizeof(u16),
1144 						       GFP_KERNEL);
1145 	if (usb->intr_urb->transfer_buffer == NULL)
1146 		goto allocfail;
1147 
1148 	if (usb_endpoint_type(&ep->desc) == USB_ENDPOINT_XFER_BULK)
1149 		usb_fill_bulk_urb(usb->intr_urb, usb->usbdev,
1150 			usb_rcvbulkpipe(usb->usbdev, 4),
1151 			usb->intr_urb->transfer_buffer, 2*sizeof(u16),
1152 			go7007_usb_readinterrupt_complete, go);
1153 	else
1154 		usb_fill_int_urb(usb->intr_urb, usb->usbdev,
1155 			usb_rcvintpipe(usb->usbdev, 4),
1156 			usb->intr_urb->transfer_buffer, 2*sizeof(u16),
1157 			go7007_usb_readinterrupt_complete, go, 8);
1158 	usb_set_intfdata(intf, &go->v4l2_dev);
1159 
1160 	/* Boot the GO7007 */
1161 	if (go7007_boot_encoder(go, go->board_info->flags &
1162 					GO7007_BOARD_USE_ONBOARD_I2C) < 0)
1163 		goto allocfail;
1164 
1165 	/* Register the EZ-USB I2C adapter, if we're using it */
1166 	if (board->flags & GO7007_USB_EZUSB_I2C) {
1167 		memcpy(&go->i2c_adapter, &go7007_usb_adap_templ,
1168 				sizeof(go7007_usb_adap_templ));
1169 		mutex_init(&usb->i2c_lock);
1170 		go->i2c_adapter.dev.parent = go->dev;
1171 		i2c_set_adapdata(&go->i2c_adapter, go);
1172 		if (i2c_add_adapter(&go->i2c_adapter) < 0) {
1173 			dev_err(go->dev, "error: i2c_add_adapter failed\n");
1174 			goto allocfail;
1175 		}
1176 		go->i2c_adapter_online = 1;
1177 	}
1178 
1179 	/* Pelco and Adlink reused the XMen and XMen-III vendor and product
1180 	 * IDs for their own incompatible designs.  We can detect XMen boards
1181 	 * by probing the sensor, but there is no way to probe the sensors on
1182 	 * the Pelco and Adlink designs so we default to the Adlink.  If it
1183 	 * is actually a Pelco, the user must set the assume_endura module
1184 	 * parameter. */
1185 	if ((go->board_id == GO7007_BOARDID_XMEN ||
1186 				go->board_id == GO7007_BOARDID_XMEN_III) &&
1187 			go->i2c_adapter_online) {
1188 		union i2c_smbus_data data;
1189 
1190 		/* Check to see if register 0x0A is 0x76 */
1191 		i2c_smbus_xfer(&go->i2c_adapter, 0x21, I2C_CLIENT_SCCB,
1192 			I2C_SMBUS_READ, 0x0A, I2C_SMBUS_BYTE_DATA, &data);
1193 		if (data.byte != 0x76) {
1194 			if (assume_endura) {
1195 				go->board_id = GO7007_BOARDID_ENDURA;
1196 				usb->board = board = &board_endura;
1197 				go->board_info = &board->main_info;
1198 				strscpy(go->name, "Pelco Endura",
1199 					sizeof(go->name));
1200 			} else {
1201 				u16 channel;
1202 
1203 				/* read channel number from GPIO[1:0] */
1204 				go7007_read_addr(go, 0x3c81, &channel);
1205 				channel &= 0x3;
1206 				go->board_id = GO7007_BOARDID_ADLINK_MPG24;
1207 				usb->board = board = &board_adlink_mpg24;
1208 				go->board_info = &board->main_info;
1209 				go->channel_number = channel;
1210 				snprintf(go->name, sizeof(go->name),
1211 					"Adlink PCI-MPG24, channel #%d",
1212 					channel);
1213 			}
1214 			go7007_update_board(go);
1215 		}
1216 	}
1217 
1218 	num_i2c_devs = go->board_info->num_i2c_devs;
1219 
1220 	/* Probe the tuner model on the TV402U */
1221 	if (go->board_id == GO7007_BOARDID_PX_TV402U) {
1222 		/* Board strapping indicates tuner model */
1223 		if (go7007_usb_vendor_request(go, 0x41, 0, 0, go->usb_buf, 3,
1224 					1) < 0) {
1225 			dev_err(go->dev, "GPIO read failed!\n");
1226 			goto allocfail;
1227 		}
1228 		switch (go->usb_buf[0] >> 6) {
1229 		case 1:
1230 			go->tuner_type = TUNER_SONY_BTF_PG472Z;
1231 			go->std = V4L2_STD_PAL;
1232 			strscpy(go->name, "Plextor PX-TV402U-EU",
1233 				sizeof(go->name));
1234 			break;
1235 		case 2:
1236 			go->tuner_type = TUNER_SONY_BTF_PK467Z;
1237 			go->std = V4L2_STD_NTSC_M_JP;
1238 			num_i2c_devs -= 2;
1239 			strscpy(go->name, "Plextor PX-TV402U-JP",
1240 				sizeof(go->name));
1241 			break;
1242 		case 3:
1243 			go->tuner_type = TUNER_SONY_BTF_PB463Z;
1244 			num_i2c_devs -= 2;
1245 			strscpy(go->name, "Plextor PX-TV402U-NA",
1246 				sizeof(go->name));
1247 			break;
1248 		default:
1249 			pr_debug("unable to detect tuner type!\n");
1250 			break;
1251 		}
1252 		/* Configure tuner mode selection inputs connected
1253 		 * to the EZ-USB GPIO output pins */
1254 		if (go7007_usb_vendor_request(go, 0x40, 0x7f02, 0,
1255 					NULL, 0, 0) < 0) {
1256 			dev_err(go->dev, "GPIO write failed!\n");
1257 			goto allocfail;
1258 		}
1259 	}
1260 
1261 	/* Print a nasty message if the user attempts to use a USB2.0 device in
1262 	 * a USB1.1 port.  There will be silent corruption of the stream. */
1263 	if ((board->flags & GO7007_USB_EZUSB) &&
1264 			usbdev->speed != USB_SPEED_HIGH)
1265 		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");
1266 
1267 	/* Allocate the URBs and buffers for receiving the video stream */
1268 	if (board->flags & GO7007_USB_EZUSB) {
1269 		if (!usb->usbdev->ep_in[6])
1270 			goto allocfail;
1271 		v_urb_len = 1024;
1272 		video_pipe = usb_rcvbulkpipe(usb->usbdev, 6);
1273 	} else {
1274 		if (!usb->usbdev->ep_in[1])
1275 			goto allocfail;
1276 		v_urb_len = 512;
1277 		video_pipe = usb_rcvbulkpipe(usb->usbdev, 1);
1278 	}
1279 	for (i = 0; i < 8; ++i) {
1280 		usb->video_urbs[i] = usb_alloc_urb(0, GFP_KERNEL);
1281 		if (usb->video_urbs[i] == NULL)
1282 			goto allocfail;
1283 		usb->video_urbs[i]->transfer_buffer =
1284 						kmalloc(v_urb_len, GFP_KERNEL);
1285 		if (usb->video_urbs[i]->transfer_buffer == NULL)
1286 			goto allocfail;
1287 		usb_fill_bulk_urb(usb->video_urbs[i], usb->usbdev, video_pipe,
1288 				usb->video_urbs[i]->transfer_buffer, v_urb_len,
1289 				go7007_usb_read_video_pipe_complete, go);
1290 	}
1291 
1292 	/* Allocate the URBs and buffers for receiving the audio stream */
1293 	if ((board->flags & GO7007_USB_EZUSB) &&
1294 	    (board->main_info.flags & GO7007_BOARD_HAS_AUDIO)) {
1295 		if (!usb->usbdev->ep_in[8])
1296 			goto allocfail;
1297 		for (i = 0; i < 8; ++i) {
1298 			usb->audio_urbs[i] = usb_alloc_urb(0, GFP_KERNEL);
1299 			if (usb->audio_urbs[i] == NULL)
1300 				goto allocfail;
1301 			usb->audio_urbs[i]->transfer_buffer = kmalloc(4096,
1302 								GFP_KERNEL);
1303 			if (usb->audio_urbs[i]->transfer_buffer == NULL)
1304 				goto allocfail;
1305 			usb_fill_bulk_urb(usb->audio_urbs[i], usb->usbdev,
1306 				usb_rcvbulkpipe(usb->usbdev, 8),
1307 				usb->audio_urbs[i]->transfer_buffer, 4096,
1308 				go7007_usb_read_audio_pipe_complete, go);
1309 		}
1310 	}
1311 
1312 	/* Do any final GO7007 initialization, then register the
1313 	 * V4L2 and ALSA interfaces */
1314 	if (go7007_register_encoder(go, num_i2c_devs) < 0)
1315 		goto allocfail;
1316 
1317 	go->status = STATUS_ONLINE;
1318 	return 0;
1319 
1320 allocfail:
1321 	go7007_usb_release(go);
1322 	kfree(go);
1323 	return -ENOMEM;
1324 }
1325 
1326 static void go7007_usb_disconnect(struct usb_interface *intf)
1327 {
1328 	struct go7007 *go = to_go7007(usb_get_intfdata(intf));
1329 
1330 	mutex_lock(&go->queue_lock);
1331 	mutex_lock(&go->serialize_lock);
1332 
1333 	if (go->audio_enabled)
1334 		go7007_snd_remove(go);
1335 
1336 	go->status = STATUS_SHUTDOWN;
1337 	v4l2_device_disconnect(&go->v4l2_dev);
1338 	video_unregister_device(&go->vdev);
1339 	mutex_unlock(&go->serialize_lock);
1340 	mutex_unlock(&go->queue_lock);
1341 
1342 	v4l2_device_put(&go->v4l2_dev);
1343 }
1344 
1345 static struct usb_driver go7007_usb_driver = {
1346 	.name		= "go7007",
1347 	.probe		= go7007_usb_probe,
1348 	.disconnect	= go7007_usb_disconnect,
1349 	.id_table	= go7007_usb_id_table,
1350 };
1351 
1352 module_usb_driver(go7007_usb_driver);
1353 MODULE_LICENSE("GPL v2");
1354