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Avoid beyond bounds copy while caching ACL
[zen-stable.git] / drivers / media / video / gspca / ov534.c
blob04753391de3e479a6acc57a4edd901a4722fa054
1 /*
2 * ov534-ov7xxx gspca driver
3 *
4 * Copyright (C) 2008 Antonio Ospite <ospite@studenti.unina.it>
5 * Copyright (C) 2008 Jim Paris <jim@jtan.com>
6 * Copyright (C) 2009 Jean-Francois Moine http://moinejf.free.fr
7 *
8 * Based on a prototype written by Mark Ferrell <majortrips@gmail.com>
9 * USB protocol reverse engineered by Jim Paris <jim@jtan.com>
10 * https://jim.sh/svn/jim/devl/playstation/ps3/eye/test/
11 *
12 * PS3 Eye camera enhanced by Richard Kaswy http://kaswy.free.fr
13 * PS3 Eye camera - brightness, contrast, awb, agc, aec controls
14 * added by Max Thrun <bear24rw@gmail.com>
15 *
16 * This program is free software; you can redistribute it and/or modify
17 * it under the terms of the GNU General Public License as published by
18 * the Free Software Foundation; either version 2 of the License, or
19 * any later version.
20 *
21 * This program is distributed in the hope that it will be useful,
22 * but WITHOUT ANY WARRANTY; without even the implied warranty of
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 * GNU General Public License for more details.
25 *
26 * You should have received a copy of the GNU General Public License
27 * along with this program; if not, write to the Free Software
28 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
29 */
30
31 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
32
33 #define MODULE_NAME "ov534"
34
35 #include "gspca.h"
36
37 #define OV534_REG_ADDRESS 0xf1 /* sensor address */
38 #define OV534_REG_SUBADDR 0xf2
39 #define OV534_REG_WRITE 0xf3
40 #define OV534_REG_READ 0xf4
41 #define OV534_REG_OPERATION 0xf5
42 #define OV534_REG_STATUS 0xf6
43
44 #define OV534_OP_WRITE_3 0x37
45 #define OV534_OP_WRITE_2 0x33
46 #define OV534_OP_READ_2 0xf9
47
48 #define CTRL_TIMEOUT 500
49
50 MODULE_AUTHOR("Antonio Ospite <ospite@studenti.unina.it>");
51 MODULE_DESCRIPTION("GSPCA/OV534 USB Camera Driver");
52 MODULE_LICENSE("GPL");
53
54 /* controls */
55 enum e_ctrl {
56 BRIGHTNESS,
57 CONTRAST,
58 GAIN,
59 EXPOSURE,
60 AGC,
61 AWB,
62 AEC,
63 SHARPNESS,
64 HFLIP,
65 VFLIP,
66 COLORS,
67 LIGHTFREQ,
68 NCTRLS /* number of controls */
69 };
70
71 /* specific webcam descriptor */
72 struct sd {
73 struct gspca_dev gspca_dev; /* !! must be the first item */
74
75 struct gspca_ctrl ctrls[NCTRLS];
76
77 __u32 last_pts;
78 u16 last_fid;
79 u8 frame_rate;
80
81 u8 sensor;
82 };
83 enum sensors {
84 SENSOR_OV767x,
85 SENSOR_OV772x,
86 NSENSORS
87 };
88
89 /* V4L2 controls supported by the driver */
90 static void setbrightness(struct gspca_dev *gspca_dev);
91 static void setcontrast(struct gspca_dev *gspca_dev);
92 static void setgain(struct gspca_dev *gspca_dev);
93 static void setexposure(struct gspca_dev *gspca_dev);
94 static int sd_setagc(struct gspca_dev *gspca_dev, __s32 val);
95 static void setawb(struct gspca_dev *gspca_dev);
96 static void setaec(struct gspca_dev *gspca_dev);
97 static void setsharpness(struct gspca_dev *gspca_dev);
98 static void sethvflip(struct gspca_dev *gspca_dev);
99 static void setcolors(struct gspca_dev *gspca_dev);
100 static void setlightfreq(struct gspca_dev *gspca_dev);
101
102 static int sd_start(struct gspca_dev *gspca_dev);
103 static void sd_stopN(struct gspca_dev *gspca_dev);
104
105 static const struct ctrl sd_ctrls[] = {
106 [BRIGHTNESS] = {
107 {
108 .id = V4L2_CID_BRIGHTNESS,
109 .type = V4L2_CTRL_TYPE_INTEGER,
110 .name = "Brightness",
111 .minimum = 0,
112 .maximum = 255,
113 .step = 1,
114 .default_value = 0,
115 },
116 .set_control = setbrightness
117 },
118 [CONTRAST] = {
119 {
120 .id = V4L2_CID_CONTRAST,
121 .type = V4L2_CTRL_TYPE_INTEGER,
122 .name = "Contrast",
123 .minimum = 0,
124 .maximum = 255,
125 .step = 1,
126 .default_value = 32,
127 },
128 .set_control = setcontrast
129 },
130 [GAIN] = {
131 {
132 .id = V4L2_CID_GAIN,
133 .type = V4L2_CTRL_TYPE_INTEGER,
134 .name = "Main Gain",
135 .minimum = 0,
136 .maximum = 63,
137 .step = 1,
138 .default_value = 20,
139 },
140 .set_control = setgain
141 },
142 [EXPOSURE] = {
143 {
144 .id = V4L2_CID_EXPOSURE,
145 .type = V4L2_CTRL_TYPE_INTEGER,
146 .name = "Exposure",
147 .minimum = 0,
148 .maximum = 255,
149 .step = 1,
150 .default_value = 120,
151 },
152 .set_control = setexposure
153 },
154 [AGC] = {
155 {
156 .id = V4L2_CID_AUTOGAIN,
157 .type = V4L2_CTRL_TYPE_BOOLEAN,
158 .name = "Auto Gain",
159 .minimum = 0,
160 .maximum = 1,
161 .step = 1,
162 .default_value = 1,
163 },
164 .set = sd_setagc
165 },
166 [AWB] = {
167 {
168 .id = V4L2_CID_AUTO_WHITE_BALANCE,
169 .type = V4L2_CTRL_TYPE_BOOLEAN,
170 .name = "Auto White Balance",
171 .minimum = 0,
172 .maximum = 1,
173 .step = 1,
174 .default_value = 1,
175 },
176 .set_control = setawb
177 },
178 [AEC] = {
179 {
180 .id = V4L2_CID_EXPOSURE_AUTO,
181 .type = V4L2_CTRL_TYPE_BOOLEAN,
182 .name = "Auto Exposure",
183 .minimum = 0,
184 .maximum = 1,
185 .step = 1,
186 .default_value = 1,
187 },
188 .set_control = setaec
189 },
190 [SHARPNESS] = {
191 {
192 .id = V4L2_CID_SHARPNESS,
193 .type = V4L2_CTRL_TYPE_INTEGER,
194 .name = "Sharpness",
195 .minimum = 0,
196 .maximum = 63,
197 .step = 1,
198 .default_value = 0,
199 },
200 .set_control = setsharpness
201 },
202 [HFLIP] = {
203 {
204 .id = V4L2_CID_HFLIP,
205 .type = V4L2_CTRL_TYPE_BOOLEAN,
206 .name = "HFlip",
207 .minimum = 0,
208 .maximum = 1,
209 .step = 1,
210 .default_value = 0,
211 },
212 .set_control = sethvflip
213 },
214 [VFLIP] = {
215 {
216 .id = V4L2_CID_VFLIP,
217 .type = V4L2_CTRL_TYPE_BOOLEAN,
218 .name = "VFlip",
219 .minimum = 0,
220 .maximum = 1,
221 .step = 1,
222 .default_value = 0,
223 },
224 .set_control = sethvflip
225 },
226 [COLORS] = {
227 {
228 .id = V4L2_CID_SATURATION,
229 .type = V4L2_CTRL_TYPE_INTEGER,
230 .name = "Saturation",
231 .minimum = 0,
232 .maximum = 6,
233 .step = 1,
234 .default_value = 3,
235 },
236 .set_control = setcolors
237 },
238 [LIGHTFREQ] = {
239 {
240 .id = V4L2_CID_POWER_LINE_FREQUENCY,
241 .type = V4L2_CTRL_TYPE_MENU,
242 .name = "Light Frequency Filter",
243 .minimum = 0,
244 .maximum = 1,
245 .step = 1,
246 .default_value = 0,
247 },
248 .set_control = setlightfreq
249 },
250 };
251
252 static const struct v4l2_pix_format ov772x_mode[] = {
253 {320, 240, V4L2_PIX_FMT_YUYV, V4L2_FIELD_NONE,
254 .bytesperline = 320 * 2,
255 .sizeimage = 320 * 240 * 2,
256 .colorspace = V4L2_COLORSPACE_SRGB,
257 .priv = 1},
258 {640, 480, V4L2_PIX_FMT_YUYV, V4L2_FIELD_NONE,
259 .bytesperline = 640 * 2,
260 .sizeimage = 640 * 480 * 2,
261 .colorspace = V4L2_COLORSPACE_SRGB,
262 .priv = 0},
263 };
264 static const struct v4l2_pix_format ov767x_mode[] = {
265 {320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
266 .bytesperline = 320,
267 .sizeimage = 320 * 240 * 3 / 8 + 590,
268 .colorspace = V4L2_COLORSPACE_JPEG},
269 {640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
270 .bytesperline = 640,
271 .sizeimage = 640 * 480 * 3 / 8 + 590,
272 .colorspace = V4L2_COLORSPACE_JPEG},
273 };
274
275 static const u8 qvga_rates[] = {125, 100, 75, 60, 50, 40, 30};
276 static const u8 vga_rates[] = {60, 50, 40, 30, 15};
277
278 static const struct framerates ov772x_framerates[] = {
279 { /* 320x240 */
280 .rates = qvga_rates,
281 .nrates = ARRAY_SIZE(qvga_rates),
282 },
283 { /* 640x480 */
284 .rates = vga_rates,
285 .nrates = ARRAY_SIZE(vga_rates),
286 },
287 };
288
289 struct reg_array {
290 const u8 (*val)[2];
291 int len;
292 };
293
294 static const u8 bridge_init_767x[][2] = {
295 /* comments from the ms-win file apollo7670.set */
296 /* str1 */
297 {0xf1, 0x42},
298 {0x88, 0xf8},
299 {0x89, 0xff},
300 {0x76, 0x03},
301 {0x92, 0x03},
302 {0x95, 0x10},
303 {0xe2, 0x00},
304 {0xe7, 0x3e},
305 {0x8d, 0x1c},
306 {0x8e, 0x00},
307 {0x8f, 0x00},
308 {0x1f, 0x00},
309 {0xc3, 0xf9},
310 {0x89, 0xff},
311 {0x88, 0xf8},
312 {0x76, 0x03},
313 {0x92, 0x01},
314 {0x93, 0x18},
315 {0x1c, 0x00},
316 {0x1d, 0x48},
317 {0x1d, 0x00},
318 {0x1d, 0xff},
319 {0x1d, 0x02},
320 {0x1d, 0x58},
321 {0x1d, 0x00},
322 {0x1c, 0x0a},
323 {0x1d, 0x0a},
324 {0x1d, 0x0e},
325 {0xc0, 0x50}, /* HSize 640 */
326 {0xc1, 0x3c}, /* VSize 480 */
327 {0x34, 0x05}, /* enable Audio Suspend mode */
328 {0xc2, 0x0c}, /* Input YUV */
329 {0xc3, 0xf9}, /* enable PRE */
330 {0x34, 0x05}, /* enable Audio Suspend mode */
331 {0xe7, 0x2e}, /* this solves failure of "SuspendResumeTest" */
332 {0x31, 0xf9}, /* enable 1.8V Suspend */
333 {0x35, 0x02}, /* turn on JPEG */
334 {0xd9, 0x10},
335 {0x25, 0x42}, /* GPIO[8]:Input */
336 {0x94, 0x11}, /* If the default setting is loaded when
337 * system boots up, this flag is closed here */
338 };
339 static const u8 sensor_init_767x[][2] = {
340 {0x12, 0x80},
341 {0x11, 0x03},
342 {0x3a, 0x04},
343 {0x12, 0x00},
344 {0x17, 0x13},
345 {0x18, 0x01},
346 {0x32, 0xb6},
347 {0x19, 0x02},
348 {0x1a, 0x7a},
349 {0x03, 0x0a},
350 {0x0c, 0x00},
351 {0x3e, 0x00},
352 {0x70, 0x3a},
353 {0x71, 0x35},
354 {0x72, 0x11},
355 {0x73, 0xf0},
356 {0xa2, 0x02},
357 {0x7a, 0x2a}, /* set Gamma=1.6 below */
358 {0x7b, 0x12},
359 {0x7c, 0x1d},
360 {0x7d, 0x2d},
361 {0x7e, 0x45},
362 {0x7f, 0x50},
363 {0x80, 0x59},
364 {0x81, 0x62},
365 {0x82, 0x6b},
366 {0x83, 0x73},
367 {0x84, 0x7b},
368 {0x85, 0x8a},
369 {0x86, 0x98},
370 {0x87, 0xb2},
371 {0x88, 0xca},
372 {0x89, 0xe0},
373 {0x13, 0xe0},
374 {0x00, 0x00},
375 {0x10, 0x00},
376 {0x0d, 0x40},
377 {0x14, 0x38}, /* gain max 16x */
378 {0xa5, 0x05},
379 {0xab, 0x07},
380 {0x24, 0x95},
381 {0x25, 0x33},
382 {0x26, 0xe3},
383 {0x9f, 0x78},
384 {0xa0, 0x68},
385 {0xa1, 0x03},
386 {0xa6, 0xd8},
387 {0xa7, 0xd8},
388 {0xa8, 0xf0},
389 {0xa9, 0x90},
390 {0xaa, 0x94},
391 {0x13, 0xe5},
392 {0x0e, 0x61},
393 {0x0f, 0x4b},
394 {0x16, 0x02},
395 {0x21, 0x02},
396 {0x22, 0x91},
397 {0x29, 0x07},
398 {0x33, 0x0b},
399 {0x35, 0x0b},
400 {0x37, 0x1d},
401 {0x38, 0x71},
402 {0x39, 0x2a},
403 {0x3c, 0x78},
404 {0x4d, 0x40},
405 {0x4e, 0x20},
406 {0x69, 0x00},
407 {0x6b, 0x4a},
408 {0x74, 0x10},
409 {0x8d, 0x4f},
410 {0x8e, 0x00},
411 {0x8f, 0x00},
412 {0x90, 0x00},
413 {0x91, 0x00},
414 {0x96, 0x00},
415 {0x9a, 0x80},
416 {0xb0, 0x84},
417 {0xb1, 0x0c},
418 {0xb2, 0x0e},
419 {0xb3, 0x82},
420 {0xb8, 0x0a},
421 {0x43, 0x0a},
422 {0x44, 0xf0},
423 {0x45, 0x34},
424 {0x46, 0x58},
425 {0x47, 0x28},
426 {0x48, 0x3a},
427 {0x59, 0x88},
428 {0x5a, 0x88},
429 {0x5b, 0x44},
430 {0x5c, 0x67},
431 {0x5d, 0x49},
432 {0x5e, 0x0e},
433 {0x6c, 0x0a},
434 {0x6d, 0x55},
435 {0x6e, 0x11},
436 {0x6f, 0x9f},
437 {0x6a, 0x40},
438 {0x01, 0x40},
439 {0x02, 0x40},
440 {0x13, 0xe7},
441 {0x4f, 0x80},
442 {0x50, 0x80},
443 {0x51, 0x00},
444 {0x52, 0x22},
445 {0x53, 0x5e},
446 {0x54, 0x80},
447 {0x58, 0x9e},
448 {0x41, 0x08},
449 {0x3f, 0x00},
450 {0x75, 0x04},
451 {0x76, 0xe1},
452 {0x4c, 0x00},
453 {0x77, 0x01},
454 {0x3d, 0xc2},
455 {0x4b, 0x09},
456 {0xc9, 0x60},
457 {0x41, 0x38}, /* jfm: auto sharpness + auto de-noise */
458 {0x56, 0x40},
459 {0x34, 0x11},
460 {0x3b, 0xc2},
461 {0xa4, 0x8a}, /* Night mode trigger point */
462 {0x96, 0x00},
463 {0x97, 0x30},
464 {0x98, 0x20},
465 {0x99, 0x20},
466 {0x9a, 0x84},
467 {0x9b, 0x29},
468 {0x9c, 0x03},
469 {0x9d, 0x4c},
470 {0x9e, 0x3f},
471 {0x78, 0x04},
472 {0x79, 0x01},
473 {0xc8, 0xf0},
474 {0x79, 0x0f},
475 {0xc8, 0x00},
476 {0x79, 0x10},
477 {0xc8, 0x7e},
478 {0x79, 0x0a},
479 {0xc8, 0x80},
480 {0x79, 0x0b},
481 {0xc8, 0x01},
482 {0x79, 0x0c},
483 {0xc8, 0x0f},
484 {0x79, 0x0d},
485 {0xc8, 0x20},
486 {0x79, 0x09},
487 {0xc8, 0x80},
488 {0x79, 0x02},
489 {0xc8, 0xc0},
490 {0x79, 0x03},
491 {0xc8, 0x20},
492 {0x79, 0x26},
493 };
494 static const u8 bridge_start_vga_767x[][2] = {
495 /* str59 JPG */
496 {0x94, 0xaa},
497 {0xf1, 0x42},
498 {0xe5, 0x04},
499 {0xc0, 0x50},
500 {0xc1, 0x3c},
501 {0xc2, 0x0c},
502 {0x35, 0x02}, /* turn on JPEG */
503 {0xd9, 0x10},
504 {0xda, 0x00}, /* for higher clock rate(30fps) */
505 {0x34, 0x05}, /* enable Audio Suspend mode */
506 {0xc3, 0xf9}, /* enable PRE */
507 {0x8c, 0x00}, /* CIF VSize LSB[2:0] */
508 {0x8d, 0x1c}, /* output YUV */
509 /* {0x34, 0x05}, * enable Audio Suspend mode (?) */
510 {0x50, 0x00}, /* H/V divider=0 */
511 {0x51, 0xa0}, /* input H=640/4 */
512 {0x52, 0x3c}, /* input V=480/4 */
513 {0x53, 0x00}, /* offset X=0 */
514 {0x54, 0x00}, /* offset Y=0 */
515 {0x55, 0x00}, /* H/V size[8]=0 */
516 {0x57, 0x00}, /* H-size[9]=0 */
517 {0x5c, 0x00}, /* output size[9:8]=0 */
518 {0x5a, 0xa0}, /* output H=640/4 */
519 {0x5b, 0x78}, /* output V=480/4 */
520 {0x1c, 0x0a},
521 {0x1d, 0x0a},
522 {0x94, 0x11},
523 };
524 static const u8 sensor_start_vga_767x[][2] = {
525 {0x11, 0x01},
526 {0x1e, 0x04},
527 {0x19, 0x02},
528 {0x1a, 0x7a},
529 };
530 static const u8 bridge_start_qvga_767x[][2] = {
531 /* str86 JPG */
532 {0x94, 0xaa},
533 {0xf1, 0x42},
534 {0xe5, 0x04},
535 {0xc0, 0x80},
536 {0xc1, 0x60},
537 {0xc2, 0x0c},
538 {0x35, 0x02}, /* turn on JPEG */
539 {0xd9, 0x10},
540 {0xc0, 0x50}, /* CIF HSize 640 */
541 {0xc1, 0x3c}, /* CIF VSize 480 */
542 {0x8c, 0x00}, /* CIF VSize LSB[2:0] */
543 {0x8d, 0x1c}, /* output YUV */
544 {0x34, 0x05}, /* enable Audio Suspend mode */
545 {0xc2, 0x4c}, /* output YUV and Enable DCW */
546 {0xc3, 0xf9}, /* enable PRE */
547 {0x1c, 0x00}, /* indirect addressing */
548 {0x1d, 0x48}, /* output YUV422 */
549 {0x50, 0x89}, /* H/V divider=/2; plus DCW AVG */
550 {0x51, 0xa0}, /* DCW input H=640/4 */
551 {0x52, 0x78}, /* DCW input V=480/4 */
552 {0x53, 0x00}, /* offset X=0 */
553 {0x54, 0x00}, /* offset Y=0 */
554 {0x55, 0x00}, /* H/V size[8]=0 */
555 {0x57, 0x00}, /* H-size[9]=0 */
556 {0x5c, 0x00}, /* DCW output size[9:8]=0 */
557 {0x5a, 0x50}, /* DCW output H=320/4 */
558 {0x5b, 0x3c}, /* DCW output V=240/4 */
559 {0x1c, 0x0a},
560 {0x1d, 0x0a},
561 {0x94, 0x11},
562 };
563 static const u8 sensor_start_qvga_767x[][2] = {
564 {0x11, 0x01},
565 {0x1e, 0x04},
566 {0x19, 0x02},
567 {0x1a, 0x7a},
568 };
569
570 static const u8 bridge_init_772x[][2] = {
571 { 0xc2, 0x0c },
572 { 0x88, 0xf8 },
573 { 0xc3, 0x69 },
574 { 0x89, 0xff },
575 { 0x76, 0x03 },
576 { 0x92, 0x01 },
577 { 0x93, 0x18 },
578 { 0x94, 0x10 },
579 { 0x95, 0x10 },
580 { 0xe2, 0x00 },
581 { 0xe7, 0x3e },
582
583 { 0x96, 0x00 },
584
585 { 0x97, 0x20 },
586 { 0x97, 0x20 },
587 { 0x97, 0x20 },
588 { 0x97, 0x0a },
589 { 0x97, 0x3f },
590 { 0x97, 0x4a },
591 { 0x97, 0x20 },
592 { 0x97, 0x15 },
593 { 0x97, 0x0b },
594
595 { 0x8e, 0x40 },
596 { 0x1f, 0x81 },
597 { 0x34, 0x05 },
598 { 0xe3, 0x04 },
599 { 0x88, 0x00 },
600 { 0x89, 0x00 },
601 { 0x76, 0x00 },
602 { 0xe7, 0x2e },
603 { 0x31, 0xf9 },
604 { 0x25, 0x42 },
605 { 0x21, 0xf0 },
606
607 { 0x1c, 0x00 },
608 { 0x1d, 0x40 },
609 { 0x1d, 0x02 }, /* payload size 0x0200 * 4 = 2048 bytes */
610 { 0x1d, 0x00 }, /* payload size */
611
612 { 0x1d, 0x02 }, /* frame size 0x025800 * 4 = 614400 */
613 { 0x1d, 0x58 }, /* frame size */
614 { 0x1d, 0x00 }, /* frame size */
615
616 { 0x1c, 0x0a },
617 { 0x1d, 0x08 }, /* turn on UVC header */
618 { 0x1d, 0x0e }, /* .. */
619
620 { 0x8d, 0x1c },
621 { 0x8e, 0x80 },
622 { 0xe5, 0x04 },
623
624 { 0xc0, 0x50 },
625 { 0xc1, 0x3c },
626 { 0xc2, 0x0c },
627 };
628 static const u8 sensor_init_772x[][2] = {
629 { 0x12, 0x80 },
630 { 0x11, 0x01 },
631 /*fixme: better have a delay?*/
632 { 0x11, 0x01 },
633 { 0x11, 0x01 },
634 { 0x11, 0x01 },
635 { 0x11, 0x01 },
636 { 0x11, 0x01 },
637 { 0x11, 0x01 },
638 { 0x11, 0x01 },
639 { 0x11, 0x01 },
640 { 0x11, 0x01 },
641 { 0x11, 0x01 },
642
643 { 0x3d, 0x03 },
644 { 0x17, 0x26 },
645 { 0x18, 0xa0 },
646 { 0x19, 0x07 },
647 { 0x1a, 0xf0 },
648 { 0x32, 0x00 },
649 { 0x29, 0xa0 },
650 { 0x2c, 0xf0 },
651 { 0x65, 0x20 },
652 { 0x11, 0x01 },
653 { 0x42, 0x7f },
654 { 0x63, 0xaa }, /* AWB - was e0 */
655 { 0x64, 0xff },
656 { 0x66, 0x00 },
657 { 0x13, 0xf0 }, /* com8 */
658 { 0x0d, 0x41 },
659 { 0x0f, 0xc5 },
660 { 0x14, 0x11 },
661
662 { 0x22, 0x7f },
663 { 0x23, 0x03 },
664 { 0x24, 0x40 },
665 { 0x25, 0x30 },
666 { 0x26, 0xa1 },
667 { 0x2a, 0x00 },
668 { 0x2b, 0x00 },
669 { 0x6b, 0xaa },
670 { 0x13, 0xff }, /* AWB */
671
672 { 0x90, 0x05 },
673 { 0x91, 0x01 },
674 { 0x92, 0x03 },
675 { 0x93, 0x00 },
676 { 0x94, 0x60 },
677 { 0x95, 0x3c },
678 { 0x96, 0x24 },
679 { 0x97, 0x1e },
680 { 0x98, 0x62 },
681 { 0x99, 0x80 },
682 { 0x9a, 0x1e },
683 { 0x9b, 0x08 },
684 { 0x9c, 0x20 },
685 { 0x9e, 0x81 },
686
687 { 0xa6, 0x04 },
688 { 0x7e, 0x0c },
689 { 0x7f, 0x16 },
690 { 0x80, 0x2a },
691 { 0x81, 0x4e },
692 { 0x82, 0x61 },
693 { 0x83, 0x6f },
694 { 0x84, 0x7b },
695 { 0x85, 0x86 },
696 { 0x86, 0x8e },
697 { 0x87, 0x97 },
698 { 0x88, 0xa4 },
699 { 0x89, 0xaf },
700 { 0x8a, 0xc5 },
701 { 0x8b, 0xd7 },
702 { 0x8c, 0xe8 },
703 { 0x8d, 0x20 },
704
705 { 0x0c, 0x90 },
706
707 { 0x2b, 0x00 },
708 { 0x22, 0x7f },
709 { 0x23, 0x03 },
710 { 0x11, 0x01 },
711 { 0x0c, 0xd0 },
712 { 0x64, 0xff },
713 { 0x0d, 0x41 },
714
715 { 0x14, 0x41 },
716 { 0x0e, 0xcd },
717 { 0xac, 0xbf },
718 { 0x8e, 0x00 }, /* De-noise threshold */
719 { 0x0c, 0xd0 }
720 };
721 static const u8 bridge_start_vga_772x[][2] = {
722 {0x1c, 0x00},
723 {0x1d, 0x40},
724 {0x1d, 0x02},
725 {0x1d, 0x00},
726 {0x1d, 0x02},
727 {0x1d, 0x58},
728 {0x1d, 0x00},
729 {0xc0, 0x50},
730 {0xc1, 0x3c},
731 };
732 static const u8 sensor_start_vga_772x[][2] = {
733 {0x12, 0x00},
734 {0x17, 0x26},
735 {0x18, 0xa0},
736 {0x19, 0x07},
737 {0x1a, 0xf0},
738 {0x29, 0xa0},
739 {0x2c, 0xf0},
740 {0x65, 0x20},
741 };
742 static const u8 bridge_start_qvga_772x[][2] = {
743 {0x1c, 0x00},
744 {0x1d, 0x40},
745 {0x1d, 0x02},
746 {0x1d, 0x00},
747 {0x1d, 0x01},
748 {0x1d, 0x4b},
749 {0x1d, 0x00},
750 {0xc0, 0x28},
751 {0xc1, 0x1e},
752 };
753 static const u8 sensor_start_qvga_772x[][2] = {
754 {0x12, 0x40},
755 {0x17, 0x3f},
756 {0x18, 0x50},
757 {0x19, 0x03},
758 {0x1a, 0x78},
759 {0x29, 0x50},
760 {0x2c, 0x78},
761 {0x65, 0x2f},
762 };
763
764 static void ov534_reg_write(struct gspca_dev *gspca_dev, u16 reg, u8 val)
765 {
766 struct usb_device *udev = gspca_dev->dev;
767 int ret;
768
769 if (gspca_dev->usb_err < 0)
770 return;
771
772 PDEBUG(D_USBO, "SET 01 0000 %04x %02x", reg, val);
773 gspca_dev->usb_buf[0] = val;
774 ret = usb_control_msg(udev,
775 usb_sndctrlpipe(udev, 0),
776 0x01,
777 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
778 0x00, reg, gspca_dev->usb_buf, 1, CTRL_TIMEOUT);
779 if (ret < 0) {
780 pr_err("write failed %d\n", ret);
781 gspca_dev->usb_err = ret;
782 }
783 }
784
785 static u8 ov534_reg_read(struct gspca_dev *gspca_dev, u16 reg)
786 {
787 struct usb_device *udev = gspca_dev->dev;
788 int ret;
789
790 if (gspca_dev->usb_err < 0)
791 return 0;
792 ret = usb_control_msg(udev,
793 usb_rcvctrlpipe(udev, 0),
794 0x01,
795 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
796 0x00, reg, gspca_dev->usb_buf, 1, CTRL_TIMEOUT);
797 PDEBUG(D_USBI, "GET 01 0000 %04x %02x", reg, gspca_dev->usb_buf[0]);
798 if (ret < 0) {
799 pr_err("read failed %d\n", ret);
800 gspca_dev->usb_err = ret;
801 }
802 return gspca_dev->usb_buf[0];
803 }
804
805 /* Two bits control LED: 0x21 bit 7 and 0x23 bit 7.
806 * (direction and output)? */
807 static void ov534_set_led(struct gspca_dev *gspca_dev, int status)
808 {
809 u8 data;
810
811 PDEBUG(D_CONF, "led status: %d", status);
812
813 data = ov534_reg_read(gspca_dev, 0x21);
814 data |= 0x80;
815 ov534_reg_write(gspca_dev, 0x21, data);
816
817 data = ov534_reg_read(gspca_dev, 0x23);
818 if (status)
819 data |= 0x80;
820 else
821 data &= ~0x80;
822
823 ov534_reg_write(gspca_dev, 0x23, data);
824
825 if (!status) {
826 data = ov534_reg_read(gspca_dev, 0x21);
827 data &= ~0x80;
828 ov534_reg_write(gspca_dev, 0x21, data);
829 }
830 }
831
832 static int sccb_check_status(struct gspca_dev *gspca_dev)
833 {
834 u8 data;
835 int i;
836
837 for (i = 0; i < 5; i++) {
838 data = ov534_reg_read(gspca_dev, OV534_REG_STATUS);
839
840 switch (data) {
841 case 0x00:
842 return 1;
843 case 0x04:
844 return 0;
845 case 0x03:
846 break;
847 default:
848 PDEBUG(D_ERR, "sccb status 0x%02x, attempt %d/5",
849 data, i + 1);
850 }
851 }
852 return 0;
853 }
854
855 static void sccb_reg_write(struct gspca_dev *gspca_dev, u8 reg, u8 val)
856 {
857 PDEBUG(D_USBO, "sccb write: %02x %02x", reg, val);
858 ov534_reg_write(gspca_dev, OV534_REG_SUBADDR, reg);
859 ov534_reg_write(gspca_dev, OV534_REG_WRITE, val);
860 ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_WRITE_3);
861
862 if (!sccb_check_status(gspca_dev)) {
863 pr_err("sccb_reg_write failed\n");
864 gspca_dev->usb_err = -EIO;
865 }
866 }
867
868 static u8 sccb_reg_read(struct gspca_dev *gspca_dev, u16 reg)
869 {
870 ov534_reg_write(gspca_dev, OV534_REG_SUBADDR, reg);
871 ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_WRITE_2);
872 if (!sccb_check_status(gspca_dev))
873 pr_err("sccb_reg_read failed 1\n");
874
875 ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_READ_2);
876 if (!sccb_check_status(gspca_dev))
877 pr_err("sccb_reg_read failed 2\n");
878
879 return ov534_reg_read(gspca_dev, OV534_REG_READ);
880 }
881
882 /* output a bridge sequence (reg - val) */
883 static void reg_w_array(struct gspca_dev *gspca_dev,
884 const u8 (*data)[2], int len)
885 {
886 while (--len >= 0) {
887 ov534_reg_write(gspca_dev, (*data)[0], (*data)[1]);
888 data++;
889 }
890 }
891
892 /* output a sensor sequence (reg - val) */
893 static void sccb_w_array(struct gspca_dev *gspca_dev,
894 const u8 (*data)[2], int len)
895 {
896 while (--len >= 0) {
897 if ((*data)[0] != 0xff) {
898 sccb_reg_write(gspca_dev, (*data)[0], (*data)[1]);
899 } else {
900 sccb_reg_read(gspca_dev, (*data)[1]);
901 sccb_reg_write(gspca_dev, 0xff, 0x00);
902 }
903 data++;
904 }
905 }
906
907 /* ov772x specific controls */
908 static void set_frame_rate(struct gspca_dev *gspca_dev)
909 {
910 struct sd *sd = (struct sd *) gspca_dev;
911 int i;
912 struct rate_s {
913 u8 fps;
914 u8 r11;
915 u8 r0d;
916 u8 re5;
917 };
918 const struct rate_s *r;
919 static const struct rate_s rate_0[] = { /* 640x480 */
920 {60, 0x01, 0xc1, 0x04},
921 {50, 0x01, 0x41, 0x02},
922 {40, 0x02, 0xc1, 0x04},
923 {30, 0x04, 0x81, 0x02},
924 {15, 0x03, 0x41, 0x04},
925 };
926 static const struct rate_s rate_1[] = { /* 320x240 */
927 {125, 0x02, 0x81, 0x02},
928 {100, 0x02, 0xc1, 0x04},
929 {75, 0x03, 0xc1, 0x04},
930 {60, 0x04, 0xc1, 0x04},
931 {50, 0x02, 0x41, 0x04},
932 {40, 0x03, 0x41, 0x04},
933 {30, 0x04, 0x41, 0x04},
934 };
935
936 if (sd->sensor != SENSOR_OV772x)
937 return;
938 if (gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv == 0) {
939 r = rate_0;
940 i = ARRAY_SIZE(rate_0);
941 } else {
942 r = rate_1;
943 i = ARRAY_SIZE(rate_1);
944 }
945 while (--i > 0) {
946 if (sd->frame_rate >= r->fps)
947 break;
948 r++;
949 }
950
951 sccb_reg_write(gspca_dev, 0x11, r->r11);
952 sccb_reg_write(gspca_dev, 0x0d, r->r0d);
953 ov534_reg_write(gspca_dev, 0xe5, r->re5);
954
955 PDEBUG(D_PROBE, "frame_rate: %d", r->fps);
956 }
957
958 static void setbrightness(struct gspca_dev *gspca_dev)
959 {
960 struct sd *sd = (struct sd *) gspca_dev;
961 int val;
962
963 val = sd->ctrls[BRIGHTNESS].val;
964 if (sd->sensor == SENSOR_OV767x) {
965 if (val < 0)
966 val = 0x80 - val;
967 sccb_reg_write(gspca_dev, 0x55, val); /* bright */
968 } else {
969 sccb_reg_write(gspca_dev, 0x9b, val);
970 }
971 }
972
973 static void setcontrast(struct gspca_dev *gspca_dev)
974 {
975 struct sd *sd = (struct sd *) gspca_dev;
976 u8 val;
977
978 val = sd->ctrls[CONTRAST].val;
979 if (sd->sensor == SENSOR_OV767x)
980 sccb_reg_write(gspca_dev, 0x56, val); /* contras */
981 else
982 sccb_reg_write(gspca_dev, 0x9c, val);
983 }
984
985 static void setgain(struct gspca_dev *gspca_dev)
986 {
987 struct sd *sd = (struct sd *) gspca_dev;
988 u8 val;
989
990 if (sd->ctrls[AGC].val)
991 return;
992
993 val = sd->ctrls[GAIN].val;
994 switch (val & 0x30) {
995 case 0x00:
996 val &= 0x0f;
997 break;
998 case 0x10:
999 val &= 0x0f;
1000 val |= 0x30;
1001 break;
1002 case 0x20:
1003 val &= 0x0f;
1004 val |= 0x70;
1005 break;
1006 default:
1007 /* case 0x30: */
1008 val &= 0x0f;
1009 val |= 0xf0;
1010 break;
1011 }
1012 sccb_reg_write(gspca_dev, 0x00, val);
1013 }
1014
1015 static void setexposure(struct gspca_dev *gspca_dev)
1016 {
1017 struct sd *sd = (struct sd *) gspca_dev;
1018 u8 val;
1019
1020 if (sd->ctrls[AEC].val)
1021 return;
1022
1023 val = sd->ctrls[EXPOSURE].val;
1024 if (sd->sensor == SENSOR_OV767x) {
1025
1026 /* set only aec[9:2] */
1027 sccb_reg_write(gspca_dev, 0x10, val); /* aech */
1028 } else {
1029
1030 /* 'val' is one byte and represents half of the exposure value
1031 * we are going to set into registers, a two bytes value:
1032 *
1033 * MSB: ((u16) val << 1) >> 8 == val >> 7
1034 * LSB: ((u16) val << 1) & 0xff == val << 1
1035 */
1036 sccb_reg_write(gspca_dev, 0x08, val >> 7);
1037 sccb_reg_write(gspca_dev, 0x10, val << 1);
1038 }
1039 }
1040
1041 static void setagc(struct gspca_dev *gspca_dev)
1042 {
1043 struct sd *sd = (struct sd *) gspca_dev;
1044
1045 if (sd->ctrls[AGC].val) {
1046 sccb_reg_write(gspca_dev, 0x13,
1047 sccb_reg_read(gspca_dev, 0x13) | 0x04);
1048 sccb_reg_write(gspca_dev, 0x64,
1049 sccb_reg_read(gspca_dev, 0x64) | 0x03);
1050 } else {
1051 sccb_reg_write(gspca_dev, 0x13,
1052 sccb_reg_read(gspca_dev, 0x13) & ~0x04);
1053 sccb_reg_write(gspca_dev, 0x64,
1054 sccb_reg_read(gspca_dev, 0x64) & ~0x03);
1055
1056 setgain(gspca_dev);
1057 }
1058 }
1059
1060 static void setawb(struct gspca_dev *gspca_dev)
1061 {
1062 struct sd *sd = (struct sd *) gspca_dev;
1063
1064 if (sd->ctrls[AWB].val) {
1065 sccb_reg_write(gspca_dev, 0x13,
1066 sccb_reg_read(gspca_dev, 0x13) | 0x02);
1067 if (sd->sensor == SENSOR_OV772x)
1068 sccb_reg_write(gspca_dev, 0x63,
1069 sccb_reg_read(gspca_dev, 0x63) | 0xc0);
1070 } else {
1071 sccb_reg_write(gspca_dev, 0x13,
1072 sccb_reg_read(gspca_dev, 0x13) & ~0x02);
1073 if (sd->sensor == SENSOR_OV772x)
1074 sccb_reg_write(gspca_dev, 0x63,
1075 sccb_reg_read(gspca_dev, 0x63) & ~0xc0);
1076 }
1077 }
1078
1079 static void setaec(struct gspca_dev *gspca_dev)
1080 {
1081 struct sd *sd = (struct sd *) gspca_dev;
1082 u8 data;
1083
1084 data = sd->sensor == SENSOR_OV767x ?
1085 0x05 : /* agc + aec */
1086 0x01; /* agc */
1087 if (sd->ctrls[AEC].val)
1088 sccb_reg_write(gspca_dev, 0x13,
1089 sccb_reg_read(gspca_dev, 0x13) | data);
1090 else {
1091 sccb_reg_write(gspca_dev, 0x13,
1092 sccb_reg_read(gspca_dev, 0x13) & ~data);
1093 if (sd->sensor == SENSOR_OV767x)
1094 sd->ctrls[EXPOSURE].val =
1095 sccb_reg_read(gspca_dev, 10); /* aech */
1096 else
1097 setexposure(gspca_dev);
1098 }
1099 }
1100
1101 static void setsharpness(struct gspca_dev *gspca_dev)
1102 {
1103 struct sd *sd = (struct sd *) gspca_dev;
1104 u8 val;
1105
1106 val = sd->ctrls[SHARPNESS].val;
1107 sccb_reg_write(gspca_dev, 0x91, val); /* Auto de-noise threshold */
1108 sccb_reg_write(gspca_dev, 0x8e, val); /* De-noise threshold */
1109 }
1110
1111 static void sethvflip(struct gspca_dev *gspca_dev)
1112 {
1113 struct sd *sd = (struct sd *) gspca_dev;
1114 u8 val;
1115
1116 if (sd->sensor == SENSOR_OV767x) {
1117 val = sccb_reg_read(gspca_dev, 0x1e); /* mvfp */
1118 val &= ~0x30;
1119 if (sd->ctrls[HFLIP].val)
1120 val |= 0x20;
1121 if (sd->ctrls[VFLIP].val)
1122 val |= 0x10;
1123 sccb_reg_write(gspca_dev, 0x1e, val);
1124 } else {
1125 val = sccb_reg_read(gspca_dev, 0x0c);
1126 val &= ~0xc0;
1127 if (sd->ctrls[HFLIP].val == 0)
1128 val |= 0x40;
1129 if (sd->ctrls[VFLIP].val == 0)
1130 val |= 0x80;
1131 sccb_reg_write(gspca_dev, 0x0c, val);
1132 }
1133 }
1134
1135 static void setcolors(struct gspca_dev *gspca_dev)
1136 {
1137 struct sd *sd = (struct sd *) gspca_dev;
1138 u8 val;
1139 int i;
1140 static u8 color_tb[][6] = {
1141 {0x42, 0x42, 0x00, 0x11, 0x30, 0x41},
1142 {0x52, 0x52, 0x00, 0x16, 0x3c, 0x52},
1143 {0x66, 0x66, 0x00, 0x1b, 0x4b, 0x66},
1144 {0x80, 0x80, 0x00, 0x22, 0x5e, 0x80},
1145 {0x9a, 0x9a, 0x00, 0x29, 0x71, 0x9a},
1146 {0xb8, 0xb8, 0x00, 0x31, 0x87, 0xb8},
1147 {0xdd, 0xdd, 0x00, 0x3b, 0xa2, 0xdd},
1148 };
1149
1150 val = sd->ctrls[COLORS].val;
1151 for (i = 0; i < ARRAY_SIZE(color_tb[0]); i++)
1152 sccb_reg_write(gspca_dev, 0x4f + i, color_tb[val][i]);
1153 }
1154
1155 static void setlightfreq(struct gspca_dev *gspca_dev)
1156 {
1157 struct sd *sd = (struct sd *) gspca_dev;
1158 u8 val;
1159
1160 val = sd->ctrls[LIGHTFREQ].val ? 0x9e : 0x00;
1161 if (sd->sensor == SENSOR_OV767x) {
1162 sccb_reg_write(gspca_dev, 0x2a, 0x00);
1163 if (val)
1164 val = 0x9d; /* insert dummy to 25fps for 50Hz */
1165 }
1166 sccb_reg_write(gspca_dev, 0x2b, val);
1167 }
1168
1169
1170 /* this function is called at probe time */
1171 static int sd_config(struct gspca_dev *gspca_dev,
1172 const struct usb_device_id *id)
1173 {
1174 struct sd *sd = (struct sd *) gspca_dev;
1175 struct cam *cam;
1176
1177 cam = &gspca_dev->cam;
1178
1179 cam->ctrls = sd->ctrls;
1180
1181 /* the auto white balance control works only when auto gain is set */
1182 if (sd_ctrls[AGC].qctrl.default_value == 0)
1183 gspca_dev->ctrl_inac |= (1 << AWB);
1184
1185 cam->cam_mode = ov772x_mode;
1186 cam->nmodes = ARRAY_SIZE(ov772x_mode);
1187
1188 sd->frame_rate = 30;
1189
1190 return 0;
1191 }
1192
1193 /* this function is called at probe and resume time */
1194 static int sd_init(struct gspca_dev *gspca_dev)
1195 {
1196 struct sd *sd = (struct sd *) gspca_dev;
1197 u16 sensor_id;
1198 static const struct reg_array bridge_init[NSENSORS] = {
1199 [SENSOR_OV767x] = {bridge_init_767x, ARRAY_SIZE(bridge_init_767x)},
1200 [SENSOR_OV772x] = {bridge_init_772x, ARRAY_SIZE(bridge_init_772x)},
1201 };
1202 static const struct reg_array sensor_init[NSENSORS] = {
1203 [SENSOR_OV767x] = {sensor_init_767x, ARRAY_SIZE(sensor_init_767x)},
1204 [SENSOR_OV772x] = {sensor_init_772x, ARRAY_SIZE(sensor_init_772x)},
1205 };
1206
1207 /* reset bridge */
1208 ov534_reg_write(gspca_dev, 0xe7, 0x3a);
1209 ov534_reg_write(gspca_dev, 0xe0, 0x08);
1210 msleep(100);
1211
1212 /* initialize the sensor address */
1213 ov534_reg_write(gspca_dev, OV534_REG_ADDRESS, 0x42);
1214
1215 /* reset sensor */
1216 sccb_reg_write(gspca_dev, 0x12, 0x80);
1217 msleep(10);
1218
1219 /* probe the sensor */
1220 sccb_reg_read(gspca_dev, 0x0a);
1221 sensor_id = sccb_reg_read(gspca_dev, 0x0a) << 8;
1222 sccb_reg_read(gspca_dev, 0x0b);
1223 sensor_id |= sccb_reg_read(gspca_dev, 0x0b);
1224 PDEBUG(D_PROBE, "Sensor ID: %04x", sensor_id);
1225
1226 if ((sensor_id & 0xfff0) == 0x7670) {
1227 sd->sensor = SENSOR_OV767x;
1228 gspca_dev->ctrl_dis = (1 << GAIN) |
1229 (1 << AGC) |
1230 (1 << SHARPNESS); /* auto */
1231 sd->ctrls[BRIGHTNESS].min = -127;
1232 sd->ctrls[BRIGHTNESS].max = 127;
1233 sd->ctrls[BRIGHTNESS].def = 0;
1234 sd->ctrls[CONTRAST].max = 0x80;
1235 sd->ctrls[CONTRAST].def = 0x40;
1236 sd->ctrls[EXPOSURE].min = 0x08;
1237 sd->ctrls[EXPOSURE].max = 0x60;
1238 sd->ctrls[EXPOSURE].def = 0x13;
1239 sd->ctrls[SHARPNESS].max = 9;
1240 sd->ctrls[SHARPNESS].def = 4;
1241 sd->ctrls[HFLIP].def = 1;
1242 gspca_dev->cam.cam_mode = ov767x_mode;
1243 gspca_dev->cam.nmodes = ARRAY_SIZE(ov767x_mode);
1244 } else {
1245 sd->sensor = SENSOR_OV772x;
1246 gspca_dev->ctrl_dis = (1 << COLORS);
1247 gspca_dev->cam.bulk = 1;
1248 gspca_dev->cam.bulk_size = 16384;
1249 gspca_dev->cam.bulk_nurbs = 2;
1250 gspca_dev->cam.mode_framerates = ov772x_framerates;
1251 }
1252
1253 /* initialize */
1254 reg_w_array(gspca_dev, bridge_init[sd->sensor].val,
1255 bridge_init[sd->sensor].len);
1256 ov534_set_led(gspca_dev, 1);
1257 sccb_w_array(gspca_dev, sensor_init[sd->sensor].val,
1258 sensor_init[sd->sensor].len);
1259 if (sd->sensor == SENSOR_OV767x)
1260 sd_start(gspca_dev);
1261 sd_stopN(gspca_dev);
1262 /* set_frame_rate(gspca_dev); */
1263
1264 return gspca_dev->usb_err;
1265 }
1266
1267 static int sd_start(struct gspca_dev *gspca_dev)
1268 {
1269 struct sd *sd = (struct sd *) gspca_dev;
1270 int mode;
1271 static const struct reg_array bridge_start[NSENSORS][2] = {
1272 [SENSOR_OV767x] = {{bridge_start_qvga_767x,
1273 ARRAY_SIZE(bridge_start_qvga_767x)},
1274 {bridge_start_vga_767x,
1275 ARRAY_SIZE(bridge_start_vga_767x)}},
1276 [SENSOR_OV772x] = {{bridge_start_qvga_772x,
1277 ARRAY_SIZE(bridge_start_qvga_772x)},
1278 {bridge_start_vga_772x,
1279 ARRAY_SIZE(bridge_start_vga_772x)}},
1280 };
1281 static const struct reg_array sensor_start[NSENSORS][2] = {
1282 [SENSOR_OV767x] = {{sensor_start_qvga_767x,
1283 ARRAY_SIZE(sensor_start_qvga_767x)},
1284 {sensor_start_vga_767x,
1285 ARRAY_SIZE(sensor_start_vga_767x)}},
1286 [SENSOR_OV772x] = {{sensor_start_qvga_772x,
1287 ARRAY_SIZE(sensor_start_qvga_772x)},
1288 {sensor_start_vga_772x,
1289 ARRAY_SIZE(sensor_start_vga_772x)}},
1290 };
1291
1292 /* (from ms-win trace) */
1293 if (sd->sensor == SENSOR_OV767x)
1294 sccb_reg_write(gspca_dev, 0x1e, 0x04);
1295 /* black sun enable ? */
1296
1297 mode = gspca_dev->curr_mode; /* 0: 320x240, 1: 640x480 */
1298 reg_w_array(gspca_dev, bridge_start[sd->sensor][mode].val,
1299 bridge_start[sd->sensor][mode].len);
1300 sccb_w_array(gspca_dev, sensor_start[sd->sensor][mode].val,
1301 sensor_start[sd->sensor][mode].len);
1302
1303 set_frame_rate(gspca_dev);
1304
1305 if (!(gspca_dev->ctrl_dis & (1 << AGC)))
1306 setagc(gspca_dev);
1307 setawb(gspca_dev);
1308 setaec(gspca_dev);
1309 if (!(gspca_dev->ctrl_dis & (1 << GAIN)))
1310 setgain(gspca_dev);
1311 setexposure(gspca_dev);
1312 setbrightness(gspca_dev);
1313 setcontrast(gspca_dev);
1314 if (!(gspca_dev->ctrl_dis & (1 << SHARPNESS)))
1315 setsharpness(gspca_dev);
1316 sethvflip(gspca_dev);
1317 if (!(gspca_dev->ctrl_dis & (1 << COLORS)))
1318 setcolors(gspca_dev);
1319 setlightfreq(gspca_dev);
1320
1321 ov534_set_led(gspca_dev, 1);
1322 ov534_reg_write(gspca_dev, 0xe0, 0x00);
1323 return gspca_dev->usb_err;
1324 }
1325
1326 static void sd_stopN(struct gspca_dev *gspca_dev)
1327 {
1328 ov534_reg_write(gspca_dev, 0xe0, 0x09);
1329 ov534_set_led(gspca_dev, 0);
1330 }
1331
1332 /* Values for bmHeaderInfo (Video and Still Image Payload Headers, 2.4.3.3) */
1333 #define UVC_STREAM_EOH (1 << 7)
1334 #define UVC_STREAM_ERR (1 << 6)
1335 #define UVC_STREAM_STI (1 << 5)
1336 #define UVC_STREAM_RES (1 << 4)
1337 #define UVC_STREAM_SCR (1 << 3)
1338 #define UVC_STREAM_PTS (1 << 2)
1339 #define UVC_STREAM_EOF (1 << 1)
1340 #define UVC_STREAM_FID (1 << 0)
1341
1342 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
1343 u8 *data, int len)
1344 {
1345 struct sd *sd = (struct sd *) gspca_dev;
1346 __u32 this_pts;
1347 u16 this_fid;
1348 int remaining_len = len;
1349 int payload_len;
1350
1351 payload_len = gspca_dev->cam.bulk ? 2048 : 2040;
1352 do {
1353 len = min(remaining_len, payload_len);
1354
1355 /* Payloads are prefixed with a UVC-style header. We
1356 consider a frame to start when the FID toggles, or the PTS
1357 changes. A frame ends when EOF is set, and we've received
1358 the correct number of bytes. */
1359
1360 /* Verify UVC header. Header length is always 12 */
1361 if (data[0] != 12 || len < 12) {
1362 PDEBUG(D_PACK, "bad header");
1363 goto discard;
1364 }
1365
1366 /* Check errors */
1367 if (data[1] & UVC_STREAM_ERR) {
1368 PDEBUG(D_PACK, "payload error");
1369 goto discard;
1370 }
1371
1372 /* Extract PTS and FID */
1373 if (!(data[1] & UVC_STREAM_PTS)) {
1374 PDEBUG(D_PACK, "PTS not present");
1375 goto discard;
1376 }
1377 this_pts = (data[5] << 24) | (data[4] << 16)
1378 | (data[3] << 8) | data[2];
1379 this_fid = (data[1] & UVC_STREAM_FID) ? 1 : 0;
1380
1381 /* If PTS or FID has changed, start a new frame. */
1382 if (this_pts != sd->last_pts || this_fid != sd->last_fid) {
1383 if (gspca_dev->last_packet_type == INTER_PACKET)
1384 gspca_frame_add(gspca_dev, LAST_PACKET,
1385 NULL, 0);
1386 sd->last_pts = this_pts;
1387 sd->last_fid = this_fid;
1388 gspca_frame_add(gspca_dev, FIRST_PACKET,
1389 data + 12, len - 12);
1390 /* If this packet is marked as EOF, end the frame */
1391 } else if (data[1] & UVC_STREAM_EOF) {
1392 sd->last_pts = 0;
1393 if (gspca_dev->pixfmt == V4L2_PIX_FMT_YUYV
1394 && gspca_dev->image_len + len - 12 !=
1395 gspca_dev->width * gspca_dev->height * 2) {
1396 PDEBUG(D_PACK, "wrong sized frame");
1397 goto discard;
1398 }
1399 gspca_frame_add(gspca_dev, LAST_PACKET,
1400 data + 12, len - 12);
1401 } else {
1402
1403 /* Add the data from this payload */
1404 gspca_frame_add(gspca_dev, INTER_PACKET,
1405 data + 12, len - 12);
1406 }
1407
1408 /* Done this payload */
1409 goto scan_next;
1410
1411 discard:
1412 /* Discard data until a new frame starts. */
1413 gspca_dev->last_packet_type = DISCARD_PACKET;
1414
1415 scan_next:
1416 remaining_len -= len;
1417 data += len;
1418 } while (remaining_len > 0);
1419 }
1420
1421 static int sd_setagc(struct gspca_dev *gspca_dev, __s32 val)
1422 {
1423 struct sd *sd = (struct sd *) gspca_dev;
1424
1425 sd->ctrls[AGC].val = val;
1426
1427 /* the auto white balance control works only
1428 * when auto gain is set */
1429 if (val) {
1430 gspca_dev->ctrl_inac &= ~(1 << AWB);
1431 } else {
1432 gspca_dev->ctrl_inac |= (1 << AWB);
1433 if (sd->ctrls[AWB].val) {
1434 sd->ctrls[AWB].val = 0;
1435 if (gspca_dev->streaming)
1436 setawb(gspca_dev);
1437 }
1438 }
1439 if (gspca_dev->streaming)
1440 setagc(gspca_dev);
1441 return gspca_dev->usb_err;
1442 }
1443
1444 static int sd_querymenu(struct gspca_dev *gspca_dev,
1445 struct v4l2_querymenu *menu)
1446 {
1447 switch (menu->id) {
1448 case V4L2_CID_POWER_LINE_FREQUENCY:
1449 switch (menu->index) {
1450 case 0: /* V4L2_CID_POWER_LINE_FREQUENCY_DISABLED */
1451 strcpy((char *) menu->name, "Disabled");
1452 return 0;
1453 case 1: /* V4L2_CID_POWER_LINE_FREQUENCY_50HZ */
1454 strcpy((char *) menu->name, "50 Hz");
1455 return 0;
1456 }
1457 break;
1458 }
1459
1460 return -EINVAL;
1461 }
1462
1463 /* get stream parameters (framerate) */
1464 static void sd_get_streamparm(struct gspca_dev *gspca_dev,
1465 struct v4l2_streamparm *parm)
1466 {
1467 struct v4l2_captureparm *cp = &parm->parm.capture;
1468 struct v4l2_fract *tpf = &cp->timeperframe;
1469 struct sd *sd = (struct sd *) gspca_dev;
1470
1471 cp->capability |= V4L2_CAP_TIMEPERFRAME;
1472 tpf->numerator = 1;
1473 tpf->denominator = sd->frame_rate;
1474 }
1475
1476 /* set stream parameters (framerate) */
1477 static void sd_set_streamparm(struct gspca_dev *gspca_dev,
1478 struct v4l2_streamparm *parm)
1479 {
1480 struct v4l2_captureparm *cp = &parm->parm.capture;
1481 struct v4l2_fract *tpf = &cp->timeperframe;
1482 struct sd *sd = (struct sd *) gspca_dev;
1483
1484 /* Set requested framerate */
1485 sd->frame_rate = tpf->denominator / tpf->numerator;
1486 if (gspca_dev->streaming)
1487 set_frame_rate(gspca_dev);
1488
1489 /* Return the actual framerate */
1490 tpf->numerator = 1;
1491 tpf->denominator = sd->frame_rate;
1492 }
1493
1494 /* sub-driver description */
1495 static const struct sd_desc sd_desc = {
1496 .name = MODULE_NAME,
1497 .ctrls = sd_ctrls,
1498 .nctrls = ARRAY_SIZE(sd_ctrls),
1499 .config = sd_config,
1500 .init = sd_init,
1501 .start = sd_start,
1502 .stopN = sd_stopN,
1503 .pkt_scan = sd_pkt_scan,
1504 .querymenu = sd_querymenu,
1505 .get_streamparm = sd_get_streamparm,
1506 .set_streamparm = sd_set_streamparm,
1507 };
1508
1509 /* -- module initialisation -- */
1510 static const struct usb_device_id device_table[] = {
1511 {USB_DEVICE(0x1415, 0x2000)},
1512 {USB_DEVICE(0x06f8, 0x3002)},
1513 {}
1514 };
1515
1516 MODULE_DEVICE_TABLE(usb, device_table);
1517
1518 /* -- device connect -- */
1519 static int sd_probe(struct usb_interface *intf, const struct usb_device_id *id)
1520 {
1521 return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
1522 THIS_MODULE);
1523 }
1524
1525 static struct usb_driver sd_driver = {
1526 .name = MODULE_NAME,
1527 .id_table = device_table,
1528 .probe = sd_probe,
1529 .disconnect = gspca_disconnect,
1530 #ifdef CONFIG_PM
1531 .suspend = gspca_suspend,
1532 .resume = gspca_resume,
1533 #endif
1534 };
1535
1536 module_usb_driver(sd_driver);