projects / deliverable / linux.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
V4L/DVB (12090): gspca_sonixj: enable autogain control for the ov7620
[deliverable/linux.git] / drivers / media / video / gspca / ov534.c
1 /*
2 * ov534 gspca driver
3 * Copyright (C) 2008 Antonio Ospite <ospite@studenti.unina.it>
4 * Copyright (C) 2008 Jim Paris <jim@jtan.com>
5 * Copyright (C) 2009 Jean-Francois Moine http://moinejf.free.fr
6 *
7 * Based on a prototype written by Mark Ferrell <majortrips@gmail.com>
8 * USB protocol reverse engineered by Jim Paris <jim@jtan.com>
9 * https://jim.sh/svn/jim/devl/playstation/ps3/eye/test/
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 */
25
26 #define MODULE_NAME "ov534"
27
28 #include "gspca.h"
29
30 #define OV534_REG_ADDRESS 0xf1 /* sensor address */
31 #define OV534_REG_SUBADDR 0xf2
32 #define OV534_REG_WRITE 0xf3
33 #define OV534_REG_READ 0xf4
34 #define OV534_REG_OPERATION 0xf5
35 #define OV534_REG_STATUS 0xf6
36
37 #define OV534_OP_WRITE_3 0x37
38 #define OV534_OP_WRITE_2 0x33
39 #define OV534_OP_READ_2 0xf9
40
41 #define CTRL_TIMEOUT 500
42
43 MODULE_AUTHOR("Antonio Ospite <ospite@studenti.unina.it>");
44 MODULE_DESCRIPTION("GSPCA/OV534 USB Camera Driver");
45 MODULE_LICENSE("GPL");
46
47 /* specific webcam descriptor */
48 struct sd {
49 struct gspca_dev gspca_dev; /* !! must be the first item */
50 __u32 last_pts;
51 u16 last_fid;
52 u8 frame_rate;
53
54 u8 sensor;
55 #define SENSOR_OV772X 0
56 #define SENSOR_OV965X 1
57 };
58
59 /* V4L2 controls supported by the driver */
60 static struct ctrl sd_ctrls[] = {
61 };
62
63 static const struct v4l2_pix_format vga_yuyv_mode[] = {
64 {640, 480, V4L2_PIX_FMT_YUYV, V4L2_FIELD_NONE,
65 .bytesperline = 640 * 2,
66 .sizeimage = 640 * 480 * 2,
67 .colorspace = V4L2_COLORSPACE_SRGB,
68 .priv = 0},
69 };
70
71 static const struct v4l2_pix_format vga_jpeg_mode[] = {
72 {320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
73 .bytesperline = 320,
74 .sizeimage = 320 * 240 * 3 / 8 + 590,
75 .colorspace = V4L2_COLORSPACE_JPEG,
76 .priv = 1},
77 {640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
78 .bytesperline = 640,
79 .sizeimage = 640 * 480 * 3 / 8 + 590,
80 .colorspace = V4L2_COLORSPACE_JPEG,
81 .priv = 0},
82 };
83
84 static const u8 bridge_init_ov722x[][2] = {
85 { 0xc2, 0x0c },
86 { 0x88, 0xf8 },
87 { 0xc3, 0x69 },
88 { 0x89, 0xff },
89 { 0x76, 0x03 },
90 { 0x92, 0x01 },
91 { 0x93, 0x18 },
92 { 0x94, 0x10 },
93 { 0x95, 0x10 },
94 { 0xe2, 0x00 },
95 { 0xe7, 0x3e },
96
97 { 0x96, 0x00 },
98
99 { 0x97, 0x20 },
100 { 0x97, 0x20 },
101 { 0x97, 0x20 },
102 { 0x97, 0x0a },
103 { 0x97, 0x3f },
104 { 0x97, 0x4a },
105 { 0x97, 0x20 },
106 { 0x97, 0x15 },
107 { 0x97, 0x0b },
108
109 { 0x8e, 0x40 },
110 { 0x1f, 0x81 },
111 { 0x34, 0x05 },
112 { 0xe3, 0x04 },
113 { 0x88, 0x00 },
114 { 0x89, 0x00 },
115 { 0x76, 0x00 },
116 { 0xe7, 0x2e },
117 { 0x31, 0xf9 },
118 { 0x25, 0x42 },
119 { 0x21, 0xf0 },
120
121 { 0x1c, 0x00 },
122 { 0x1d, 0x40 },
123 { 0x1d, 0x02 }, /* payload size 0x0200 * 4 = 2048 bytes */
124 { 0x1d, 0x00 }, /* payload size */
125 { 0x1d, 0x02 }, /* frame size 0x025800 * 4 = 614400 */
126 { 0x1d, 0x58 }, /* frame size */
127 { 0x1d, 0x00 }, /* frame size */
128
129 { 0x1c, 0x0a },
130 { 0x1d, 0x08 }, /* turn on UVC header */
131 { 0x1d, 0x0e }, /* .. */
132
133 { 0x8d, 0x1c },
134 { 0x8e, 0x80 },
135 { 0xe5, 0x04 },
136
137 { 0xc0, 0x50 },
138 { 0xc1, 0x3c },
139 { 0xc2, 0x0c },
140 };
141
142 static const u8 sensor_init_ov722x[][2] = {
143 { 0x12, 0x80 },
144 { 0x11, 0x01 },
145
146 { 0x3d, 0x03 },
147 { 0x17, 0x26 },
148 { 0x18, 0xa0 },
149 { 0x19, 0x07 },
150 { 0x1a, 0xf0 },
151 { 0x32, 0x00 },
152 { 0x29, 0xa0 },
153 { 0x2c, 0xf0 },
154 { 0x65, 0x20 },
155 { 0x11, 0x01 },
156 { 0x42, 0x7f },
157 { 0x63, 0xe0 },
158 { 0x64, 0xff },
159 { 0x66, 0x00 },
160 { 0x13, 0xf0 },
161 { 0x0d, 0x41 },
162 { 0x0f, 0xc5 },
163 { 0x14, 0x11 },
164
165 { 0x22, 0x7f },
166 { 0x23, 0x03 },
167 { 0x24, 0x40 },
168 { 0x25, 0x30 },
169 { 0x26, 0xa1 },
170 { 0x2a, 0x00 },
171 { 0x2b, 0x00 },
172 { 0x6b, 0xaa },
173 { 0x13, 0xff },
174
175 { 0x90, 0x05 },
176 { 0x91, 0x01 },
177 { 0x92, 0x03 },
178 { 0x93, 0x00 },
179 { 0x94, 0x60 },
180 { 0x95, 0x3c },
181 { 0x96, 0x24 },
182 { 0x97, 0x1e },
183 { 0x98, 0x62 },
184 { 0x99, 0x80 },
185 { 0x9a, 0x1e },
186 { 0x9b, 0x08 },
187 { 0x9c, 0x20 },
188 { 0x9e, 0x81 },
189
190 { 0xa6, 0x04 },
191 { 0x7e, 0x0c },
192 { 0x7f, 0x16 },
193 { 0x80, 0x2a },
194 { 0x81, 0x4e },
195 { 0x82, 0x61 },
196 { 0x83, 0x6f },
197 { 0x84, 0x7b },
198 { 0x85, 0x86 },
199 { 0x86, 0x8e },
200 { 0x87, 0x97 },
201 { 0x88, 0xa4 },
202 { 0x89, 0xaf },
203 { 0x8a, 0xc5 },
204 { 0x8b, 0xd7 },
205 { 0x8c, 0xe8 },
206 { 0x8d, 0x20 },
207
208 { 0x0c, 0x90 },
209
210 { 0x2b, 0x00 },
211 { 0x22, 0x7f },
212 { 0x23, 0x03 },
213 { 0x11, 0x01 },
214 { 0x0c, 0xd0 },
215 { 0x64, 0xff },
216 { 0x0d, 0x41 },
217
218 { 0x14, 0x41 },
219 { 0x0e, 0xcd },
220 { 0xac, 0xbf },
221 { 0x8e, 0x00 },
222 { 0x0c, 0xd0 }
223 };
224
225 static const u8 bridge_init_ov965x[][2] = {
226 {0x88, 0xf8},
227 {0x89, 0xff},
228 {0x76, 0x03},
229 {0x92, 0x03},
230 {0x95, 0x10},
231 {0xe2, 0x00},
232 {0xe7, 0x3e},
233 {0x8d, 0x1c},
234 {0x8e, 0x00},
235 {0x8f, 0x00},
236 {0x1f, 0x00},
237 {0xc3, 0xf9},
238 {0x89, 0xff},
239 {0x88, 0xf8},
240 {0x76, 0x03},
241 {0x92, 0x01},
242 {0x93, 0x18},
243 {0x1c, 0x0a},
244 {0x1d, 0x48},
245 {0xc0, 0x50},
246 {0xc1, 0x3c},
247 {0x34, 0x05},
248 {0xc2, 0x0c},
249 {0xc3, 0xf9},
250 {0x34, 0x05},
251 {0xe7, 0x2e},
252 {0x31, 0xf9},
253 {0x35, 0x02},
254 {0xd9, 0x10},
255 {0x25, 0x42},
256 {0x94, 0x11},
257 };
258
259 static const u8 sensor_init_ov965x[][2] = {
260 {0x12, 0x80}, /* com7 - SSCB reset */
261 {0x00, 0x00}, /* gain */
262 {0x01, 0x80}, /* blue */
263 {0x02, 0x80}, /* red */
264 {0x03, 0x1b}, /* vref */
265 {0x04, 0x03}, /* com1 - exposure low bits */
266 {0x0b, 0x57}, /* ver */
267 {0x0e, 0x61}, /* com5 */
268 {0x0f, 0x42}, /* com6 */
269 {0x11, 0x00}, /* clkrc */
270 {0x12, 0x02}, /* com7 - 15fps VGA YUYV */
271 {0x13, 0xe7}, /* com8 - everything (AGC, AWB and AEC) */
272 {0x14, 0x28}, /* com9 */
273 {0x16, 0x24}, /* reg16 */
274 {0x17, 0x1d}, /* hstart*/
275 {0x18, 0xbd}, /* hstop */
276 {0x19, 0x01}, /* vstrt */
277 {0x1a, 0x81}, /* vstop*/
278 {0x1e, 0x04}, /* mvfp */
279 {0x24, 0x3c}, /* aew */
280 {0x25, 0x36}, /* aeb */
281 {0x26, 0x71}, /* vpt */
282 {0x27, 0x08}, /* bbias */
283 {0x28, 0x08}, /* gbbias */
284 {0x29, 0x15}, /* gr com */
285 {0x2a, 0x00}, /* exhch */
286 {0x2b, 0x00}, /* exhcl */
287 {0x2c, 0x08}, /* rbias */
288 {0x32, 0xff}, /* href */
289 {0x33, 0x00}, /* chlf */
290 {0x34, 0x3f}, /* aref1 */
291 {0x35, 0x00}, /* aref2 */
292 {0x36, 0xf8}, /* aref3 */
293 {0x38, 0x72}, /* adc2 */
294 {0x39, 0x57}, /* aref4 */
295 {0x3a, 0x80}, /* tslb - yuyv */
296 {0x3b, 0xc4}, /* com11 - night mode 1/4 frame rate */
297 {0x3d, 0x99}, /* com13 */
298 {0x3f, 0xc1}, /* edge */
299 {0x40, 0xc0}, /* com15 */
300 {0x41, 0x40}, /* com16 */
301 {0x42, 0xc0}, /* com17 */
302 {0x43, 0x0a}, /* rsvd */
303 {0x44, 0xf0},
304 {0x45, 0x46},
305 {0x46, 0x62},
306 {0x47, 0x2a},
307 {0x48, 0x3c},
308 {0x4a, 0xfc},
309 {0x4b, 0xfc},
310 {0x4c, 0x7f},
311 {0x4d, 0x7f},
312 {0x4e, 0x7f},
313 {0x4f, 0x98}, /* matrix */
314 {0x50, 0x98},
315 {0x51, 0x00},
316 {0x52, 0x28},
317 {0x53, 0x70},
318 {0x54, 0x98},
319 {0x58, 0x1a}, /* matrix coef sign */
320 {0x59, 0x85}, /* AWB control */
321 {0x5a, 0xa9},
322 {0x5b, 0x64},
323 {0x5c, 0x84},
324 {0x5d, 0x53},
325 {0x5e, 0x0e},
326 {0x5f, 0xf0}, /* AWB blue limit */
327 {0x60, 0xf0}, /* AWB red limit */
328 {0x61, 0xf0}, /* AWB green limit */
329 {0x62, 0x00}, /* lcc1 */
330 {0x63, 0x00}, /* lcc2 */
331 {0x64, 0x02}, /* lcc3 */
332 {0x65, 0x16}, /* lcc4 */
333 {0x66, 0x01}, /* lcc5 */
334 {0x69, 0x02}, /* hv */
335 {0x6b, 0x5a}, /* dbvl */
336 {0x6c, 0x04},
337 {0x6d, 0x55},
338 {0x6e, 0x00},
339 {0x6f, 0x9d},
340 {0x70, 0x21}, /* dnsth */
341 {0x71, 0x78},
342 {0x72, 0x00}, /* poidx */
343 {0x73, 0x01}, /* pckdv */
344 {0x74, 0x3a}, /* xindx */
345 {0x75, 0x35}, /* yindx */
346 {0x76, 0x01},
347 {0x77, 0x02},
348 {0x7a, 0x12}, /* gamma curve */
349 {0x7b, 0x08},
350 {0x7c, 0x16},
351 {0x7d, 0x30},
352 {0x7e, 0x5e},
353 {0x7f, 0x72},
354 {0x80, 0x82},
355 {0x81, 0x8e},
356 {0x82, 0x9a},
357 {0x83, 0xa4},
358 {0x84, 0xac},
359 {0x85, 0xb8},
360 {0x86, 0xc3},
361 {0x87, 0xd6},
362 {0x88, 0xe6},
363 {0x89, 0xf2},
364 {0x8a, 0x03},
365 {0x8c, 0x89}, /* com19 */
366 {0x14, 0x28}, /* com9 */
367 {0x90, 0x7d},
368 {0x91, 0x7b},
369 {0x9d, 0x03}, /* lcc6 */
370 {0x9e, 0x04}, /* lcc7 */
371 {0x9f, 0x7a},
372 {0xa0, 0x79},
373 {0xa1, 0x40}, /* aechm */
374 {0xa4, 0x50}, /* com21 */
375 {0xa5, 0x68}, /* com26 */
376 {0xa6, 0x4a}, /* AWB green */
377 {0xa8, 0xc1}, /* refa8 */
378 {0xa9, 0xef}, /* refa9 */
379 {0xaa, 0x92},
380 {0xab, 0x04},
381 {0xac, 0x80}, /* black level control */
382 {0xad, 0x80},
383 {0xae, 0x80},
384 {0xaf, 0x80},
385 {0xb2, 0xf2},
386 {0xb3, 0x20},
387 {0xb4, 0x20}, /* ctrlb4 */
388 {0xb5, 0x00},
389 {0xb6, 0xaf},
390 {0xbb, 0xae},
391 {0xbc, 0x7f}, /* ADC channel offsets */
392 {0xdb, 0x7f},
393 {0xbe, 0x7f},
394 {0xbf, 0x7f},
395 {0xc0, 0xe2},
396 {0xc1, 0xc0},
397 {0xc2, 0x01},
398 {0xc3, 0x4e},
399 {0xc6, 0x85},
400 {0xc7, 0x80}, /* com24 */
401 {0xc9, 0xe0},
402 {0xca, 0xe8},
403 {0xcb, 0xf0},
404 {0xcc, 0xd8},
405 {0xcd, 0xf1},
406 {0x4f, 0x98},
407 {0x50, 0x98},
408 {0x51, 0x00},
409 {0x52, 0x28},
410 {0x53, 0x70},
411 {0x54, 0x98},
412 {0x58, 0x1a},
413 {0xff, 0x41}, /* read 41, write ff 00 */
414 {0x41, 0x40}, /* com16 */
415 {0xc5, 0x03}, /* 60 Hz banding filter */
416 {0x6a, 0x02}, /* 50 Hz banding filter */
417
418 {0x12, 0x62}, /* com7 - 30fps VGA YUV */
419 {0x36, 0xfa}, /* aref3 */
420 {0x69, 0x0a}, /* hv */
421 {0x8c, 0x89}, /* com22 */
422 {0x14, 0x28}, /* com9 */
423 {0x3e, 0x0c},
424 {0x41, 0x40}, /* com16 */
425 {0x72, 0x00},
426 {0x73, 0x00},
427 {0x74, 0x3a},
428 {0x75, 0x35},
429 {0x76, 0x01},
430 {0xc7, 0x80},
431 {0x03, 0x12}, /* vref */
432 {0x17, 0x16}, /* hstart */
433 {0x18, 0x02}, /* hstop */
434 {0x19, 0x01}, /* vstrt */
435 {0x1a, 0x3d}, /* vstop */
436 {0x32, 0xff}, /* href */
437 {0xc0, 0xaa},
438 };
439
440 static const u8 bridge_init_ov965x_2[][2] = {
441 {0x94, 0xaa},
442 {0xf1, 0x60},
443 {0xe5, 0x04},
444 {0xc0, 0x50},
445 {0xc1, 0x3c},
446 {0x8c, 0x00},
447 {0x8d, 0x1c},
448 {0x34, 0x05},
449
450 {0xc2, 0x0c},
451 {0xc3, 0xf9},
452 {0xda, 0x01},
453 {0x50, 0x00},
454 {0x51, 0xa0},
455 {0x52, 0x3c},
456 {0x53, 0x00},
457 {0x54, 0x00},
458 {0x55, 0x00}, /* brightness */
459 {0x57, 0x00}, /* contrast 2 */
460 {0x5c, 0x00},
461 {0x5a, 0xa0},
462 {0x5b, 0x78},
463 {0x35, 0x02},
464 {0xd9, 0x10},
465 {0x94, 0x11},
466 };
467
468 static const u8 sensor_init_ov965x_2[][2] = {
469 {0x3b, 0xc4},
470 {0x1e, 0x04}, /* mvfp */
471 {0x13, 0xe0}, /* com8 */
472 {0x00, 0x00}, /* gain */
473 {0x13, 0xe7}, /* com8 - everything (AGC, AWB and AEC) */
474 {0x11, 0x03}, /* clkrc */
475 {0x6b, 0x5a}, /* dblv */
476 {0x6a, 0x05},
477 {0xc5, 0x07},
478 {0xa2, 0x4b},
479 {0xa3, 0x3e},
480 {0x2d, 0x00},
481 {0xff, 0x42}, /* read 42, write ff 00 */
482 {0x42, 0xc0},
483 {0x2d, 0x00},
484 {0xff, 0x42}, /* read 42, write ff 00 */
485 {0x42, 0xc1},
486 {0x3f, 0x01},
487 {0xff, 0x42}, /* read 42, write ff 00 */
488 {0x42, 0xc1},
489 {0x4f, 0x98},
490 {0x50, 0x98},
491 {0x51, 0x00},
492 {0x52, 0x28},
493 {0x53, 0x70},
494 {0x54, 0x98},
495 {0x58, 0x1a},
496 {0xff, 0x41}, /* read 41, write ff 00 */
497 {0x41, 0x40}, /* com16 */
498 {0x56, 0x40},
499 {0x55, 0x8f},
500 {0x10, 0x25}, /* aech - exposure high bits */
501 {0xff, 0x13}, /* read 13, write ff 00 */
502 {0x13, 0xe7}, /* com8 - everything (AGC, AWB and AEC) */
503 };
504
505 static const u8 sensor_start_ov965x[][2] = {
506 {0x12, 0x62}, /* com7 - 30fps VGA YUV */
507 {0x36, 0xfa}, /* aref3 */
508 {0x69, 0x0a}, /* hv */
509 {0x8c, 0x89}, /* com22 */
510 {0x14, 0x28}, /* com9 */
511 {0x3e, 0x0c}, /* com14 */
512 {0x41, 0x40}, /* com16 */
513 {0x72, 0x00},
514 {0x73, 0x00},
515 {0x74, 0x3a},
516 {0x75, 0x35},
517 {0x76, 0x01},
518 {0xc7, 0x80}, /* com24 */
519 {0x03, 0x12}, /* vref */
520 {0x17, 0x16}, /* hstart */
521 {0x18, 0x02}, /* hstop */
522 {0x19, 0x01}, /* vstrt */
523 {0x1a, 0x3d}, /* vstop */
524 {0x32, 0xff}, /* href */
525 {0xc0, 0xaa},
526 {}
527 };
528
529 static const u8 bridge_start_ov965x[][2] = {
530 {0x94, 0xaa},
531 {0xf1, 0x60},
532 {0xe5, 0x04},
533 {0xc0, 0x50},
534 {0xc1, 0x3c},
535 {0x8c, 0x00},
536 {0x8d, 0x1c},
537 {0x34, 0x05},
538 {}
539 };
540
541 static const u8 bridge_start_ov965x_vga[][2] = {
542 {0xc2, 0x0c},
543 {0xc3, 0xf9},
544 {0xda, 0x01},
545 {0x50, 0x00},
546 {0x51, 0xa0},
547 {0x52, 0x3c},
548 {0x53, 0x00},
549 {0x54, 0x00},
550 {0x55, 0x00},
551 {0x57, 0x00},
552 {0x5c, 0x00},
553 {0x5a, 0xa0},
554 {0x5b, 0x78},
555 {0x35, 0x02},
556 {0xd9, 0x10},
557 {0x94, 0x11},
558 {}
559 };
560
561 static const u8 bridge_start_ov965x_cif[][2] = {
562 {0xc2, 0x4c},
563 {0xc3, 0xf9},
564 {0xda, 0x00},
565 {0x50, 0x00},
566 {0x51, 0xa0},
567 {0x52, 0x78},
568 {0x53, 0x00},
569 {0x54, 0x00},
570 {0x55, 0x00},
571 {0x57, 0x00},
572 {0x5c, 0x00},
573 {0x5a, 0x50},
574 {0x5b, 0x3c},
575 {0x35, 0x02},
576 {0xd9, 0x10},
577 {0x94, 0x11},
578 {}
579 };
580
581 static const u8 sensor_start_ov965x_vga[][2] = {
582 {0x3b, 0xc4}, /* com11 - night mode 1/4 frame rate */
583 {0x1e, 0x04}, /* mvfp */
584 {0x13, 0xe0}, /* com8 */
585 {0x00, 0x00},
586 {0x13, 0xe7}, /* com8 - everything (AGC, AWB and AEC) */
587 {0x11, 0x03}, /* clkrc */
588 {0x6b, 0x5a}, /* dblv */
589 {0x6a, 0x05}, /* 50 Hz banding filter */
590 {0xc5, 0x07}, /* 60 Hz banding filter */
591 {0xa2, 0x4b}, /* bd50 */
592 {0xa3, 0x3e}, /* bd60 */
593
594 {0x2d, 0x00}, /* advfl */
595 {}
596 };
597
598 static const u8 sensor_start_ov965x_cif[][2] = {
599 {0x3b, 0xe4}, /* com11 - night mode 1/4 frame rate */
600 {0x1e, 0x04}, /* mvfp */
601 {0x13, 0xe0}, /* com8 */
602 {0x00, 0x00},
603 {0x13, 0xe7}, /* com8 - everything (AGC, AWB and AEC) */
604 {0x11, 0x01}, /* clkrc */
605 {0x6b, 0x5a}, /* dblv */
606 {0x6a, 0x02}, /* 50 Hz banding filter */
607 {0xc5, 0x03}, /* 60 Hz banding filter */
608 {0xa2, 0x96}, /* bd50 */
609 {0xa3, 0x7d}, /* bd60 */
610
611 {0xff, 0x13}, /* read 13, write ff 00 */
612 {0x13, 0xe7},
613 {0x3a, 0x80}, /* tslb - yuyv */
614 {}
615 };
616
617 static const u8 sensor_start_ov965x_2[][2] = {
618 {0xff, 0x42}, /* read 42, write ff 00 */
619 {0x42, 0xc1}, /* com17 - 50 Hz filter */
620 {}
621 };
622
623
624 static void ov534_reg_write(struct gspca_dev *gspca_dev, u16 reg, u8 val)
625 {
626 struct usb_device *udev = gspca_dev->dev;
627 int ret;
628
629 PDEBUG(D_USBO, "reg=0x%04x, val=0%02x", reg, val);
630 gspca_dev->usb_buf[0] = val;
631 ret = usb_control_msg(udev,
632 usb_sndctrlpipe(udev, 0),
633 0x01,
634 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
635 0x00, reg, gspca_dev->usb_buf, 1, CTRL_TIMEOUT);
636 if (ret < 0)
637 PDEBUG(D_ERR, "write failed");
638 }
639
640 static u8 ov534_reg_read(struct gspca_dev *gspca_dev, u16 reg)
641 {
642 struct usb_device *udev = gspca_dev->dev;
643 int ret;
644
645 ret = usb_control_msg(udev,
646 usb_rcvctrlpipe(udev, 0),
647 0x01,
648 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
649 0x00, reg, gspca_dev->usb_buf, 1, CTRL_TIMEOUT);
650 PDEBUG(D_USBI, "reg=0x%04x, data=0x%02x", reg, gspca_dev->usb_buf[0]);
651 if (ret < 0)
652 PDEBUG(D_ERR, "read failed");
653 return gspca_dev->usb_buf[0];
654 }
655
656 /* Two bits control LED: 0x21 bit 7 and 0x23 bit 7.
657 * (direction and output)? */
658 static void ov534_set_led(struct gspca_dev *gspca_dev, int status)
659 {
660 u8 data;
661
662 PDEBUG(D_CONF, "led status: %d", status);
663
664 data = ov534_reg_read(gspca_dev, 0x21);
665 data |= 0x80;
666 ov534_reg_write(gspca_dev, 0x21, data);
667
668 data = ov534_reg_read(gspca_dev, 0x23);
669 if (status)
670 data |= 0x80;
671 else
672 data &= ~0x80;
673
674 ov534_reg_write(gspca_dev, 0x23, data);
675
676 if (!status) {
677 data = ov534_reg_read(gspca_dev, 0x21);
678 data &= ~0x80;
679 ov534_reg_write(gspca_dev, 0x21, data);
680 }
681 }
682
683 static int sccb_check_status(struct gspca_dev *gspca_dev)
684 {
685 u8 data;
686 int i;
687
688 for (i = 0; i < 5; i++) {
689 data = ov534_reg_read(gspca_dev, OV534_REG_STATUS);
690
691 switch (data) {
692 case 0x00:
693 return 1;
694 case 0x04:
695 return 0;
696 case 0x03:
697 break;
698 default:
699 PDEBUG(D_ERR, "sccb status 0x%02x, attempt %d/5",
700 data, i + 1);
701 }
702 }
703 return 0;
704 }
705
706 static void sccb_reg_write(struct gspca_dev *gspca_dev, u8 reg, u8 val)
707 {
708 PDEBUG(D_USBO, "reg: 0x%02x, val: 0x%02x", reg, val);
709 ov534_reg_write(gspca_dev, OV534_REG_SUBADDR, reg);
710 ov534_reg_write(gspca_dev, OV534_REG_WRITE, val);
711 ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_WRITE_3);
712
713 if (!sccb_check_status(gspca_dev))
714 PDEBUG(D_ERR, "sccb_reg_write failed");
715 }
716
717 static u8 sccb_reg_read(struct gspca_dev *gspca_dev, u16 reg)
718 {
719 ov534_reg_write(gspca_dev, OV534_REG_SUBADDR, reg);
720 ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_WRITE_2);
721 if (!sccb_check_status(gspca_dev))
722 PDEBUG(D_ERR, "sccb_reg_read failed 1");
723
724 ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_READ_2);
725 if (!sccb_check_status(gspca_dev))
726 PDEBUG(D_ERR, "sccb_reg_read failed 2");
727
728 return ov534_reg_read(gspca_dev, OV534_REG_READ);
729 }
730
731 /* output a bridge sequence (reg - val) */
732 static void reg_w_array(struct gspca_dev *gspca_dev,
733 const u8 (*data)[2], int len)
734 {
735 while (--len >= 0) {
736 ov534_reg_write(gspca_dev, (*data)[0], (*data)[1]);
737 data++;
738 }
739 }
740
741 /* output a sensor sequence (reg - val) */
742 static void sccb_w_array(struct gspca_dev *gspca_dev,
743 const u8 (*data)[2], int len)
744 {
745 while (--len >= 0) {
746 if ((*data)[0] != 0xff) {
747 sccb_reg_write(gspca_dev, (*data)[0], (*data)[1]);
748 } else {
749 sccb_reg_read(gspca_dev, (*data)[1]);
750 sccb_reg_write(gspca_dev, 0xff, 0x00);
751 }
752 data++;
753 }
754 }
755
756 /* set framerate */
757 static void ov534_set_frame_rate(struct gspca_dev *gspca_dev)
758 {
759 struct sd *sd = (struct sd *) gspca_dev;
760 int fr = sd->frame_rate;
761
762 switch (fr) {
763 case 50:
764 sccb_reg_write(gspca_dev, 0x11, 0x01);
765 sccb_reg_write(gspca_dev, 0x0d, 0x41);
766 ov534_reg_write(gspca_dev, 0xe5, 0x02);
767 break;
768 case 40:
769 sccb_reg_write(gspca_dev, 0x11, 0x02);
770 sccb_reg_write(gspca_dev, 0x0d, 0xc1);
771 ov534_reg_write(gspca_dev, 0xe5, 0x04);
772 break;
773 /* case 30: */
774 default:
775 fr = 30;
776 sccb_reg_write(gspca_dev, 0x11, 0x04);
777 sccb_reg_write(gspca_dev, 0x0d, 0x81);
778 ov534_reg_write(gspca_dev, 0xe5, 0x02);
779 break;
780 case 15:
781 sccb_reg_write(gspca_dev, 0x11, 0x03);
782 sccb_reg_write(gspca_dev, 0x0d, 0x41);
783 ov534_reg_write(gspca_dev, 0xe5, 0x04);
784 break;
785 }
786
787 sd->frame_rate = fr;
788 PDEBUG(D_PROBE, "frame_rate: %d", fr);
789 }
790
791 /* this function is called at probe time */
792 static int sd_config(struct gspca_dev *gspca_dev,
793 const struct usb_device_id *id)
794 {
795 struct sd *sd = (struct sd *) gspca_dev;
796 struct cam *cam;
797
798 sd->sensor = id->driver_info;
799
800 cam = &gspca_dev->cam;
801
802 if (sd->sensor == SENSOR_OV772X) {
803 cam->cam_mode = vga_yuyv_mode;
804 cam->nmodes = ARRAY_SIZE(vga_yuyv_mode);
805
806 cam->bulk = 1;
807 cam->bulk_size = 16384;
808 cam->bulk_nurbs = 2;
809 } else { /* ov965x */
810 cam->cam_mode = vga_jpeg_mode;
811 cam->nmodes = ARRAY_SIZE(vga_jpeg_mode);
812 }
813
814 return 0;
815 }
816
817 /* this function is called at probe and resume time */
818 static int sd_init(struct gspca_dev *gspca_dev)
819 {
820 struct sd *sd = (struct sd *) gspca_dev;
821 u16 sensor_id;
822 static const u8 sensor_addr[2] = {
823 0x42, /* 0 SENSOR_OV772X */
824 0x60, /* 1 SENSOR_OV965X */
825 };
826
827 /* reset bridge */
828 ov534_reg_write(gspca_dev, 0xe7, 0x3a);
829 ov534_reg_write(gspca_dev, 0xe0, 0x08);
830 msleep(100);
831
832 /* initialize the sensor address */
833 ov534_reg_write(gspca_dev, OV534_REG_ADDRESS,
834 sensor_addr[sd->sensor]);
835
836 /* reset sensor */
837 sccb_reg_write(gspca_dev, 0x12, 0x80);
838 msleep(10);
839
840 /* probe the sensor */
841 sccb_reg_read(gspca_dev, 0x0a);
842 sensor_id = sccb_reg_read(gspca_dev, 0x0a) << 8;
843 sccb_reg_read(gspca_dev, 0x0b);
844 sensor_id |= sccb_reg_read(gspca_dev, 0x0b);
845 PDEBUG(D_PROBE, "Sensor ID: %04x", sensor_id);
846
847 /* initialize */
848 switch (sd->sensor) {
849 case SENSOR_OV772X:
850 reg_w_array(gspca_dev, bridge_init_ov722x,
851 ARRAY_SIZE(bridge_init_ov722x));
852 ov534_set_led(gspca_dev, 1);
853 sccb_w_array(gspca_dev, sensor_init_ov722x,
854 ARRAY_SIZE(sensor_init_ov722x));
855 ov534_reg_write(gspca_dev, 0xe0, 0x09);
856 ov534_set_led(gspca_dev, 0);
857 ov534_set_frame_rate(gspca_dev);
858 break;
859 default:
860 /* case SENSOR_OV965X: */
861 reg_w_array(gspca_dev, bridge_init_ov965x,
862 ARRAY_SIZE(bridge_init_ov965x));
863 sccb_w_array(gspca_dev, sensor_init_ov965x,
864 ARRAY_SIZE(sensor_init_ov965x));
865 reg_w_array(gspca_dev, bridge_init_ov965x_2,
866 ARRAY_SIZE(bridge_init_ov965x_2));
867 sccb_w_array(gspca_dev, sensor_init_ov965x_2,
868 ARRAY_SIZE(sensor_init_ov965x_2));
869 ov534_reg_write(gspca_dev, 0xe0, 0x00);
870 ov534_reg_write(gspca_dev, 0xe0, 0x01);
871 ov534_set_led(gspca_dev, 0);
872 ov534_reg_write(gspca_dev, 0xe0, 0x00);
873 }
874
875 return 0;
876 }
877
878 static int sd_start(struct gspca_dev *gspca_dev)
879 {
880 struct sd *sd = (struct sd *) gspca_dev;
881 int mode;
882
883 switch (sd->sensor) {
884 case SENSOR_OV772X:
885 ov534_set_led(gspca_dev, 1);
886 ov534_reg_write(gspca_dev, 0xe0, 0x00);
887 break;
888 default:
889 /* case SENSOR_OV965X: */
890
891 sccb_w_array(gspca_dev, sensor_start_ov965x,
892 ARRAY_SIZE(sensor_start_ov965x));
893 reg_w_array(gspca_dev, bridge_start_ov965x,
894 ARRAY_SIZE(bridge_start_ov965x));
895 mode = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv;
896 if (mode != 0) { /* 320x240 */
897 reg_w_array(gspca_dev, bridge_start_ov965x_cif,
898 ARRAY_SIZE(bridge_start_ov965x_cif));
899 sccb_w_array(gspca_dev, sensor_start_ov965x_cif,
900 ARRAY_SIZE(sensor_start_ov965x_cif));
901 } else { /* 640x480 */
902 reg_w_array(gspca_dev, bridge_start_ov965x_vga,
903 ARRAY_SIZE(bridge_start_ov965x_vga));
904 sccb_w_array(gspca_dev, sensor_start_ov965x_vga,
905 ARRAY_SIZE(sensor_start_ov965x_vga));
906 }
907 sccb_w_array(gspca_dev, sensor_start_ov965x_2,
908 ARRAY_SIZE(sensor_start_ov965x_2));
909 ov534_reg_write(gspca_dev, 0xe0, 0x00);
910 ov534_reg_write(gspca_dev, 0xe0, 0x00);
911 ov534_set_led(gspca_dev, 1);
912 }
913 return 0;
914 }
915
916 static void sd_stopN(struct gspca_dev *gspca_dev)
917 {
918 struct sd *sd = (struct sd *) gspca_dev;
919
920 switch (sd->sensor) {
921 case SENSOR_OV772X:
922 ov534_reg_write(gspca_dev, 0xe0, 0x09);
923 ov534_set_led(gspca_dev, 0);
924 break;
925 default:
926 /* case SENSOR_OV965X: */
927 ov534_reg_write(gspca_dev, 0xe0, 0x01);
928 ov534_set_led(gspca_dev, 0);
929 ov534_reg_write(gspca_dev, 0xe0, 0x00);
930 break;
931 }
932 }
933
934 /* Values for bmHeaderInfo (Video and Still Image Payload Headers, 2.4.3.3) */
935 #define UVC_STREAM_EOH (1 << 7)
936 #define UVC_STREAM_ERR (1 << 6)
937 #define UVC_STREAM_STI (1 << 5)
938 #define UVC_STREAM_RES (1 << 4)
939 #define UVC_STREAM_SCR (1 << 3)
940 #define UVC_STREAM_PTS (1 << 2)
941 #define UVC_STREAM_EOF (1 << 1)
942 #define UVC_STREAM_FID (1 << 0)
943
944 static void sd_pkt_scan(struct gspca_dev *gspca_dev, struct gspca_frame *frame,
945 __u8 *data, int len)
946 {
947 struct sd *sd = (struct sd *) gspca_dev;
948 __u32 this_pts;
949 u16 this_fid;
950 int remaining_len = len;
951 int payload_len;
952
953 payload_len = gspca_dev->cam.bulk ? 2048 : 2040;
954 do {
955 len = min(remaining_len, payload_len);
956
957 /* Payloads are prefixed with a UVC-style header. We
958 consider a frame to start when the FID toggles, or the PTS
959 changes. A frame ends when EOF is set, and we've received
960 the correct number of bytes. */
961
962 /* Verify UVC header. Header length is always 12 */
963 if (data[0] != 12 || len < 12) {
964 PDEBUG(D_PACK, "bad header");
965 goto discard;
966 }
967
968 /* Check errors */
969 if (data[1] & UVC_STREAM_ERR) {
970 PDEBUG(D_PACK, "payload error");
971 goto discard;
972 }
973
974 /* Extract PTS and FID */
975 if (!(data[1] & UVC_STREAM_PTS)) {
976 PDEBUG(D_PACK, "PTS not present");
977 goto discard;
978 }
979 this_pts = (data[5] << 24) | (data[4] << 16)
980 | (data[3] << 8) | data[2];
981 this_fid = (data[1] & UVC_STREAM_FID) ? 1 : 0;
982
983 /* If PTS or FID has changed, start a new frame. */
984 if (this_pts != sd->last_pts || this_fid != sd->last_fid) {
985 if (gspca_dev->last_packet_type == INTER_PACKET)
986 frame = gspca_frame_add(gspca_dev,
987 LAST_PACKET, frame,
988 NULL, 0);
989 sd->last_pts = this_pts;
990 sd->last_fid = this_fid;
991 gspca_frame_add(gspca_dev, FIRST_PACKET, frame,
992 data + 12, len - 12);
993 /* If this packet is marked as EOF, end the frame */
994 } else if (data[1] & UVC_STREAM_EOF) {
995 sd->last_pts = 0;
996 frame = gspca_frame_add(gspca_dev, LAST_PACKET, frame,
997 data + 12, len - 12);
998 } else {
999
1000 /* Add the data from this payload */
1001 gspca_frame_add(gspca_dev, INTER_PACKET, frame,
1002 data + 12, len - 12);
1003 }
1004
1005
1006 /* Done this payload */
1007 goto scan_next;
1008
1009 discard:
1010 /* Discard data until a new frame starts. */
1011 gspca_frame_add(gspca_dev, DISCARD_PACKET, frame, NULL, 0);
1012
1013 scan_next:
1014 remaining_len -= len;
1015 data += len;
1016 } while (remaining_len > 0);
1017 }
1018
1019 /* get stream parameters (framerate) */
1020 static int sd_get_streamparm(struct gspca_dev *gspca_dev,
1021 struct v4l2_streamparm *parm)
1022 {
1023 struct v4l2_captureparm *cp = &parm->parm.capture;
1024 struct v4l2_fract *tpf = &cp->timeperframe;
1025 struct sd *sd = (struct sd *) gspca_dev;
1026
1027 if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1028 return -EINVAL;
1029
1030 cp->capability |= V4L2_CAP_TIMEPERFRAME;
1031 tpf->numerator = 1;
1032 tpf->denominator = sd->frame_rate;
1033
1034 return 0;
1035 }
1036
1037 /* set stream parameters (framerate) */
1038 static int sd_set_streamparm(struct gspca_dev *gspca_dev,
1039 struct v4l2_streamparm *parm)
1040 {
1041 struct v4l2_captureparm *cp = &parm->parm.capture;
1042 struct v4l2_fract *tpf = &cp->timeperframe;
1043 struct sd *sd = (struct sd *) gspca_dev;
1044
1045 if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1046 return -EINVAL;
1047
1048 /* Set requested framerate */
1049 sd->frame_rate = tpf->denominator / tpf->numerator;
1050 ov534_set_frame_rate(gspca_dev);
1051
1052 /* Return the actual framerate */
1053 tpf->numerator = 1;
1054 tpf->denominator = sd->frame_rate;
1055
1056 return 0;
1057 }
1058
1059 /* sub-driver description */
1060 static const struct sd_desc sd_desc = {
1061 .name = MODULE_NAME,
1062 .ctrls = sd_ctrls,
1063 .nctrls = ARRAY_SIZE(sd_ctrls),
1064 .config = sd_config,
1065 .init = sd_init,
1066 .start = sd_start,
1067 .stopN = sd_stopN,
1068 .pkt_scan = sd_pkt_scan,
1069 .get_streamparm = sd_get_streamparm,
1070 .set_streamparm = sd_set_streamparm,
1071 };
1072
1073 /* -- module initialisation -- */
1074 static const __devinitdata struct usb_device_id device_table[] = {
1075 {USB_DEVICE(0x06f8, 0x3003), .driver_info = SENSOR_OV965X},
1076 {USB_DEVICE(0x1415, 0x2000), .driver_info = SENSOR_OV772X},
1077 {}
1078 };
1079
1080 MODULE_DEVICE_TABLE(usb, device_table);
1081
1082 /* -- device connect -- */
1083 static int sd_probe(struct usb_interface *intf, const struct usb_device_id *id)
1084 {
1085 return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
1086 THIS_MODULE);
1087 }
1088
1089 static struct usb_driver sd_driver = {
1090 .name = MODULE_NAME,
1091 .id_table = device_table,
1092 .probe = sd_probe,
1093 .disconnect = gspca_disconnect,
1094 #ifdef CONFIG_PM
1095 .suspend = gspca_suspend,
1096 .resume = gspca_resume,
1097 #endif
1098 };
1099
1100 /* -- module insert / remove -- */
1101 static int __init sd_mod_init(void)
1102 {
1103 int ret;
1104 ret = usb_register(&sd_driver);
1105 if (ret < 0)
1106 return ret;
1107 PDEBUG(D_PROBE, "registered");
1108 return 0;
1109 }
1110
1111 static void __exit sd_mod_exit(void)
1112 {
1113 usb_deregister(&sd_driver);
1114 PDEBUG(D_PROBE, "deregistered");
1115 }
1116
1117 module_init(sd_mod_init);
1118 module_exit(sd_mod_exit);
Linux kernel - Deliverables
This page took 0.163373 seconds and 5 git commands to generate.