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OMAP3 SRF: Generic shared resource f/w
[linux-ginger.git] / drivers / media / video / gspca / m5602 / m5602_po1030.c
blob8d74d8065b7977cb126d3fb23922830b317671f9
1 /*
2 * Driver for the po1030 sensor
3 *
4 * Copyright (c) 2008 Erik Andrén
5 * Copyright (c) 2007 Ilyes Gouta. Based on the m5603x Linux Driver Project.
6 * Copyright (c) 2005 m5603x Linux Driver Project <m5602@x3ng.com.br>
7 *
8 * Portions of code to USB interface and ALi driver software,
9 * Copyright (c) 2006 Willem Duinker
10 * v4l2 interface modeled after the V4L2 driver
11 * for SN9C10x PC Camera Controllers
12 *
13 * This program is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU General Public License as
15 * published by the Free Software Foundation, version 2.
16 *
17 */
18
19 #include "m5602_po1030.h"
20
21 static int po1030_get_exposure(struct gspca_dev *gspca_dev, __s32 *val);
22 static int po1030_set_exposure(struct gspca_dev *gspca_dev, __s32 val);
23 static int po1030_get_gain(struct gspca_dev *gspca_dev, __s32 *val);
24 static int po1030_set_gain(struct gspca_dev *gspca_dev, __s32 val);
25 static int po1030_get_red_balance(struct gspca_dev *gspca_dev, __s32 *val);
26 static int po1030_set_red_balance(struct gspca_dev *gspca_dev, __s32 val);
27 static int po1030_get_blue_balance(struct gspca_dev *gspca_dev, __s32 *val);
28 static int po1030_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val);
29 static int po1030_get_green_balance(struct gspca_dev *gspca_dev, __s32 *val);
30 static int po1030_set_green_balance(struct gspca_dev *gspca_dev, __s32 val);
31 static int po1030_get_hflip(struct gspca_dev *gspca_dev, __s32 *val);
32 static int po1030_set_hflip(struct gspca_dev *gspca_dev, __s32 val);
33 static int po1030_get_vflip(struct gspca_dev *gspca_dev, __s32 *val);
34 static int po1030_set_vflip(struct gspca_dev *gspca_dev, __s32 val);
35 static int po1030_set_auto_white_balance(struct gspca_dev *gspca_dev,
36 __s32 val);
37 static int po1030_get_auto_white_balance(struct gspca_dev *gspca_dev,
38 __s32 *val);
39 static int po1030_set_auto_exposure(struct gspca_dev *gspca_dev,
40 __s32 val);
41 static int po1030_get_auto_exposure(struct gspca_dev *gspca_dev,
42 __s32 *val);
43
44 static struct v4l2_pix_format po1030_modes[] = {
45 {
46 640,
47 480,
48 V4L2_PIX_FMT_SBGGR8,
49 V4L2_FIELD_NONE,
50 .sizeimage = 640 * 480,
51 .bytesperline = 640,
52 .colorspace = V4L2_COLORSPACE_SRGB,
53 .priv = 2
54 }
55 };
56
57 static const struct ctrl po1030_ctrls[] = {
58 #define GAIN_IDX 0
59 {
60 {
61 .id = V4L2_CID_GAIN,
62 .type = V4L2_CTRL_TYPE_INTEGER,
63 .name = "gain",
64 .minimum = 0x00,
65 .maximum = 0x4f,
66 .step = 0x1,
67 .default_value = PO1030_GLOBAL_GAIN_DEFAULT,
68 .flags = V4L2_CTRL_FLAG_SLIDER
69 },
70 .set = po1030_set_gain,
71 .get = po1030_get_gain
72 },
73 #define EXPOSURE_IDX 1
74 {
75 {
76 .id = V4L2_CID_EXPOSURE,
77 .type = V4L2_CTRL_TYPE_INTEGER,
78 .name = "exposure",
79 .minimum = 0x00,
80 .maximum = 0x02ff,
81 .step = 0x1,
82 .default_value = PO1030_EXPOSURE_DEFAULT,
83 .flags = V4L2_CTRL_FLAG_SLIDER
84 },
85 .set = po1030_set_exposure,
86 .get = po1030_get_exposure
87 },
88 #define RED_BALANCE_IDX 2
89 {
90 {
91 .id = V4L2_CID_RED_BALANCE,
92 .type = V4L2_CTRL_TYPE_INTEGER,
93 .name = "red balance",
94 .minimum = 0x00,
95 .maximum = 0xff,
96 .step = 0x1,
97 .default_value = PO1030_RED_GAIN_DEFAULT,
98 .flags = V4L2_CTRL_FLAG_SLIDER
99 },
100 .set = po1030_set_red_balance,
101 .get = po1030_get_red_balance
102 },
103 #define BLUE_BALANCE_IDX 3
104 {
105 {
106 .id = V4L2_CID_BLUE_BALANCE,
107 .type = V4L2_CTRL_TYPE_INTEGER,
108 .name = "blue balance",
109 .minimum = 0x00,
110 .maximum = 0xff,
111 .step = 0x1,
112 .default_value = PO1030_BLUE_GAIN_DEFAULT,
113 .flags = V4L2_CTRL_FLAG_SLIDER
114 },
115 .set = po1030_set_blue_balance,
116 .get = po1030_get_blue_balance
117 },
118 #define HFLIP_IDX 4
119 {
120 {
121 .id = V4L2_CID_HFLIP,
122 .type = V4L2_CTRL_TYPE_BOOLEAN,
123 .name = "horizontal flip",
124 .minimum = 0,
125 .maximum = 1,
126 .step = 1,
127 .default_value = 0,
128 },
129 .set = po1030_set_hflip,
130 .get = po1030_get_hflip
131 },
132 #define VFLIP_IDX 5
133 {
134 {
135 .id = V4L2_CID_VFLIP,
136 .type = V4L2_CTRL_TYPE_BOOLEAN,
137 .name = "vertical flip",
138 .minimum = 0,
139 .maximum = 1,
140 .step = 1,
141 .default_value = 0,
142 },
143 .set = po1030_set_vflip,
144 .get = po1030_get_vflip
145 },
146 #define AUTO_WHITE_BALANCE_IDX 6
147 {
148 {
149 .id = V4L2_CID_AUTO_WHITE_BALANCE,
150 .type = V4L2_CTRL_TYPE_BOOLEAN,
151 .name = "auto white balance",
152 .minimum = 0,
153 .maximum = 1,
154 .step = 1,
155 .default_value = 0,
156 },
157 .set = po1030_set_auto_white_balance,
158 .get = po1030_get_auto_white_balance
159 },
160 #define AUTO_EXPOSURE_IDX 7
161 {
162 {
163 .id = V4L2_CID_EXPOSURE_AUTO,
164 .type = V4L2_CTRL_TYPE_BOOLEAN,
165 .name = "auto exposure",
166 .minimum = 0,
167 .maximum = 1,
168 .step = 1,
169 .default_value = 0,
170 },
171 .set = po1030_set_auto_exposure,
172 .get = po1030_get_auto_exposure
173 },
174 #define GREEN_BALANCE_IDX 8
175 {
176 {
177 .id = M5602_V4L2_CID_GREEN_BALANCE,
178 .type = V4L2_CTRL_TYPE_INTEGER,
179 .name = "green balance",
180 .minimum = 0x00,
181 .maximum = 0xff,
182 .step = 0x1,
183 .default_value = PO1030_GREEN_GAIN_DEFAULT,
184 .flags = V4L2_CTRL_FLAG_SLIDER
185 },
186 .set = po1030_set_green_balance,
187 .get = po1030_get_green_balance
188 },
189 };
190
191 static void po1030_dump_registers(struct sd *sd);
192
193 int po1030_probe(struct sd *sd)
194 {
195 u8 dev_id_h = 0, i;
196 s32 *sensor_settings;
197
198 if (force_sensor) {
199 if (force_sensor == PO1030_SENSOR) {
200 info("Forcing a %s sensor", po1030.name);
201 goto sensor_found;
202 }
203 /* If we want to force another sensor, don't try to probe this
204 * one */
205 return -ENODEV;
206 }
207
208 info("Probing for a po1030 sensor");
209
210 /* Run the pre-init to actually probe the unit */
211 for (i = 0; i < ARRAY_SIZE(preinit_po1030); i++) {
212 u8 data = preinit_po1030[i][2];
213 if (preinit_po1030[i][0] == SENSOR)
214 m5602_write_sensor(sd,
215 preinit_po1030[i][1], &data, 1);
216 else
217 m5602_write_bridge(sd, preinit_po1030[i][1], data);
218 }
219
220 if (m5602_read_sensor(sd, PO1030_DEVID_H, &dev_id_h, 1))
221 return -ENODEV;
222
223 if (dev_id_h == 0x30) {
224 info("Detected a po1030 sensor");
225 goto sensor_found;
226 }
227 return -ENODEV;
228
229 sensor_found:
230 sensor_settings = kmalloc(
231 ARRAY_SIZE(po1030_ctrls) * sizeof(s32), GFP_KERNEL);
232 if (!sensor_settings)
233 return -ENOMEM;
234
235 sd->gspca_dev.cam.cam_mode = po1030_modes;
236 sd->gspca_dev.cam.nmodes = ARRAY_SIZE(po1030_modes);
237 sd->desc->ctrls = po1030_ctrls;
238 sd->desc->nctrls = ARRAY_SIZE(po1030_ctrls);
239
240 for (i = 0; i < ARRAY_SIZE(po1030_ctrls); i++)
241 sensor_settings[i] = po1030_ctrls[i].qctrl.default_value;
242 sd->sensor_priv = sensor_settings;
243
244 return 0;
245 }
246
247 int po1030_init(struct sd *sd)
248 {
249 s32 *sensor_settings = sd->sensor_priv;
250 int i, err = 0;
251
252 /* Init the sensor */
253 for (i = 0; i < ARRAY_SIZE(init_po1030) && !err; i++) {
254 u8 data[2] = {0x00, 0x00};
255
256 switch (init_po1030[i][0]) {
257 case BRIDGE:
258 err = m5602_write_bridge(sd,
259 init_po1030[i][1],
260 init_po1030[i][2]);
261 break;
262
263 case SENSOR:
264 data[0] = init_po1030[i][2];
265 err = m5602_write_sensor(sd,
266 init_po1030[i][1], data, 1);
267 break;
268
269 default:
270 info("Invalid stream command, exiting init");
271 return -EINVAL;
272 }
273 }
274 if (err < 0)
275 return err;
276
277 if (dump_sensor)
278 po1030_dump_registers(sd);
279
280 err = po1030_set_exposure(&sd->gspca_dev,
281 sensor_settings[EXPOSURE_IDX]);
282 if (err < 0)
283 return err;
284
285 err = po1030_set_gain(&sd->gspca_dev, sensor_settings[GAIN_IDX]);
286 if (err < 0)
287 return err;
288
289 err = po1030_set_hflip(&sd->gspca_dev, sensor_settings[HFLIP_IDX]);
290 if (err < 0)
291 return err;
292
293 err = po1030_set_vflip(&sd->gspca_dev, sensor_settings[VFLIP_IDX]);
294 if (err < 0)
295 return err;
296
297 err = po1030_set_red_balance(&sd->gspca_dev,
298 sensor_settings[RED_BALANCE_IDX]);
299 if (err < 0)
300 return err;
301
302 err = po1030_set_blue_balance(&sd->gspca_dev,
303 sensor_settings[BLUE_BALANCE_IDX]);
304 if (err < 0)
305 return err;
306
307 err = po1030_set_green_balance(&sd->gspca_dev,
308 sensor_settings[GREEN_BALANCE_IDX]);
309 if (err < 0)
310 return err;
311
312 err = po1030_set_auto_white_balance(&sd->gspca_dev,
313 sensor_settings[AUTO_WHITE_BALANCE_IDX]);
314 if (err < 0)
315 return err;
316
317 err = po1030_set_auto_exposure(&sd->gspca_dev,
318 sensor_settings[AUTO_EXPOSURE_IDX]);
319 return err;
320 }
321
322 int po1030_start(struct sd *sd)
323 {
324 struct cam *cam = &sd->gspca_dev.cam;
325 int i, err = 0;
326 int width = cam->cam_mode[sd->gspca_dev.curr_mode].width;
327 int height = cam->cam_mode[sd->gspca_dev.curr_mode].height;
328 int ver_offs = cam->cam_mode[sd->gspca_dev.curr_mode].priv;
329 u8 data;
330
331 switch (width) {
332 case 320:
333 data = PO1030_SUBSAMPLING;
334 err = m5602_write_sensor(sd, PO1030_CONTROL3, &data, 1);
335 if (err < 0)
336 return err;
337
338 data = ((width + 3) >> 8) & 0xff;
339 err = m5602_write_sensor(sd, PO1030_WINDOWWIDTH_H, &data, 1);
340 if (err < 0)
341 return err;
342
343 data = (width + 3) & 0xff;
344 err = m5602_write_sensor(sd, PO1030_WINDOWWIDTH_L, &data, 1);
345 if (err < 0)
346 return err;
347
348 data = ((height + 1) >> 8) & 0xff;
349 err = m5602_write_sensor(sd, PO1030_WINDOWHEIGHT_H, &data, 1);
350 if (err < 0)
351 return err;
352
353 data = (height + 1) & 0xff;
354 err = m5602_write_sensor(sd, PO1030_WINDOWHEIGHT_L, &data, 1);
355
356 height += 6;
357 width -= 1;
358 break;
359
360 case 640:
361 data = 0;
362 err = m5602_write_sensor(sd, PO1030_CONTROL3, &data, 1);
363 if (err < 0)
364 return err;
365
366 data = ((width + 7) >> 8) & 0xff;
367 err = m5602_write_sensor(sd, PO1030_WINDOWWIDTH_H, &data, 1);
368 if (err < 0)
369 return err;
370
371 data = (width + 7) & 0xff;
372 err = m5602_write_sensor(sd, PO1030_WINDOWWIDTH_L, &data, 1);
373 if (err < 0)
374 return err;
375
376 data = ((height + 3) >> 8) & 0xff;
377 err = m5602_write_sensor(sd, PO1030_WINDOWHEIGHT_H, &data, 1);
378 if (err < 0)
379 return err;
380
381 data = (height + 3) & 0xff;
382 err = m5602_write_sensor(sd, PO1030_WINDOWHEIGHT_L, &data, 1);
383
384 height += 12;
385 width -= 2;
386 break;
387 }
388 err = m5602_write_bridge(sd, M5602_XB_SENSOR_TYPE, 0x0c);
389 if (err < 0)
390 return err;
391
392 err = m5602_write_bridge(sd, M5602_XB_LINE_OF_FRAME_H, 0x81);
393 if (err < 0)
394 return err;
395
396 err = m5602_write_bridge(sd, M5602_XB_PIX_OF_LINE_H, 0x82);
397 if (err < 0)
398 return err;
399
400 err = m5602_write_bridge(sd, M5602_XB_SIG_INI, 0x01);
401 if (err < 0)
402 return err;
403
404 err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA,
405 ((ver_offs >> 8) & 0xff));
406 if (err < 0)
407 return err;
408
409 err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, (ver_offs & 0xff));
410 if (err < 0)
411 return err;
412
413 for (i = 0; i < 2 && !err; i++)
414 err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, 0);
415 if (err < 0)
416 return err;
417
418 err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, (height >> 8) & 0xff);
419 if (err < 0)
420 return err;
421
422 err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, (height & 0xff));
423 if (err < 0)
424 return err;
425
426 for (i = 0; i < 2 && !err; i++)
427 err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, 0);
428
429 for (i = 0; i < 2 && !err; i++)
430 err = m5602_write_bridge(sd, M5602_XB_SIG_INI, 0);
431
432 for (i = 0; i < 2 && !err; i++)
433 err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA, 0);
434 if (err < 0)
435 return err;
436
437 err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA, (width >> 8) & 0xff);
438 if (err < 0)
439 return err;
440
441 err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA, (width & 0xff));
442 if (err < 0)
443 return err;
444
445 err = m5602_write_bridge(sd, M5602_XB_SIG_INI, 0);
446 return err;
447 }
448
449 static int po1030_get_exposure(struct gspca_dev *gspca_dev, __s32 *val)
450 {
451 struct sd *sd = (struct sd *) gspca_dev;
452 s32 *sensor_settings = sd->sensor_priv;
453
454 *val = sensor_settings[EXPOSURE_IDX];
455 PDEBUG(D_V4L2, "Exposure read as %d", *val);
456 return 0;
457 }
458
459 static int po1030_set_exposure(struct gspca_dev *gspca_dev, __s32 val)
460 {
461 struct sd *sd = (struct sd *) gspca_dev;
462 s32 *sensor_settings = sd->sensor_priv;
463 u8 i2c_data;
464 int err;
465
466 sensor_settings[EXPOSURE_IDX] = val;
467 PDEBUG(D_V4L2, "Set exposure to %d", val & 0xffff);
468
469 i2c_data = ((val & 0xff00) >> 8);
470 PDEBUG(D_V4L2, "Set exposure to high byte to 0x%x",
471 i2c_data);
472
473 err = m5602_write_sensor(sd, PO1030_INTEGLINES_H,
474 &i2c_data, 1);
475 if (err < 0)
476 return err;
477
478 i2c_data = (val & 0xff);
479 PDEBUG(D_V4L2, "Set exposure to low byte to 0x%x",
480 i2c_data);
481 err = m5602_write_sensor(sd, PO1030_INTEGLINES_M,
482 &i2c_data, 1);
483
484 return err;
485 }
486
487 static int po1030_get_gain(struct gspca_dev *gspca_dev, __s32 *val)
488 {
489 struct sd *sd = (struct sd *) gspca_dev;
490 s32 *sensor_settings = sd->sensor_priv;
491
492 *val = sensor_settings[GAIN_IDX];
493 PDEBUG(D_V4L2, "Read global gain %d", *val);
494 return 0;
495 }
496
497 static int po1030_set_gain(struct gspca_dev *gspca_dev, __s32 val)
498 {
499 struct sd *sd = (struct sd *) gspca_dev;
500 s32 *sensor_settings = sd->sensor_priv;
501 u8 i2c_data;
502 int err;
503
504 sensor_settings[GAIN_IDX] = val;
505
506 i2c_data = val & 0xff;
507 PDEBUG(D_V4L2, "Set global gain to %d", i2c_data);
508 err = m5602_write_sensor(sd, PO1030_GLOBALGAIN,
509 &i2c_data, 1);
510 return err;
511 }
512
513 static int po1030_get_hflip(struct gspca_dev *gspca_dev, __s32 *val)
514 {
515 struct sd *sd = (struct sd *) gspca_dev;
516 s32 *sensor_settings = sd->sensor_priv;
517
518 *val = sensor_settings[HFLIP_IDX];
519 PDEBUG(D_V4L2, "Read hflip %d", *val);
520
521 return 0;
522 }
523
524 static int po1030_set_hflip(struct gspca_dev *gspca_dev, __s32 val)
525 {
526 struct sd *sd = (struct sd *) gspca_dev;
527 s32 *sensor_settings = sd->sensor_priv;
528 u8 i2c_data;
529 int err;
530
531 sensor_settings[HFLIP_IDX] = val;
532
533 PDEBUG(D_V4L2, "Set hflip %d", val);
534 err = m5602_read_sensor(sd, PO1030_CONTROL2, &i2c_data, 1);
535 if (err < 0)
536 return err;
537
538 i2c_data = (0x7f & i2c_data) | ((val & 0x01) << 7);
539
540 err = m5602_write_sensor(sd, PO1030_CONTROL2,
541 &i2c_data, 1);
542
543 return err;
544 }
545
546 static int po1030_get_vflip(struct gspca_dev *gspca_dev, __s32 *val)
547 {
548 struct sd *sd = (struct sd *) gspca_dev;
549 s32 *sensor_settings = sd->sensor_priv;
550
551 *val = sensor_settings[VFLIP_IDX];
552 PDEBUG(D_V4L2, "Read vflip %d", *val);
553
554 return 0;
555 }
556
557 static int po1030_set_vflip(struct gspca_dev *gspca_dev, __s32 val)
558 {
559 struct sd *sd = (struct sd *) gspca_dev;
560 s32 *sensor_settings = sd->sensor_priv;
561 u8 i2c_data;
562 int err;
563
564 sensor_settings[VFLIP_IDX] = val;
565
566 PDEBUG(D_V4L2, "Set vflip %d", val);
567 err = m5602_read_sensor(sd, PO1030_CONTROL2, &i2c_data, 1);
568 if (err < 0)
569 return err;
570
571 i2c_data = (i2c_data & 0xbf) | ((val & 0x01) << 6);
572
573 err = m5602_write_sensor(sd, PO1030_CONTROL2,
574 &i2c_data, 1);
575
576 return err;
577 }
578
579 static int po1030_get_red_balance(struct gspca_dev *gspca_dev, __s32 *val)
580 {
581 struct sd *sd = (struct sd *) gspca_dev;
582 s32 *sensor_settings = sd->sensor_priv;
583
584 *val = sensor_settings[RED_BALANCE_IDX];
585 PDEBUG(D_V4L2, "Read red gain %d", *val);
586 return 0;
587 }
588
589 static int po1030_set_red_balance(struct gspca_dev *gspca_dev, __s32 val)
590 {
591 struct sd *sd = (struct sd *) gspca_dev;
592 s32 *sensor_settings = sd->sensor_priv;
593 u8 i2c_data;
594 int err;
595
596 sensor_settings[RED_BALANCE_IDX] = val;
597
598 i2c_data = val & 0xff;
599 PDEBUG(D_V4L2, "Set red gain to %d", i2c_data);
600 err = m5602_write_sensor(sd, PO1030_RED_GAIN,
601 &i2c_data, 1);
602 return err;
603 }
604
605 static int po1030_get_blue_balance(struct gspca_dev *gspca_dev, __s32 *val)
606 {
607 struct sd *sd = (struct sd *) gspca_dev;
608 s32 *sensor_settings = sd->sensor_priv;
609
610 *val = sensor_settings[BLUE_BALANCE_IDX];
611 PDEBUG(D_V4L2, "Read blue gain %d", *val);
612
613 return 0;
614 }
615
616 static int po1030_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val)
617 {
618 struct sd *sd = (struct sd *) gspca_dev;
619 s32 *sensor_settings = sd->sensor_priv;
620 u8 i2c_data;
621 int err;
622
623 sensor_settings[BLUE_BALANCE_IDX] = val;
624
625 i2c_data = val & 0xff;
626 PDEBUG(D_V4L2, "Set blue gain to %d", i2c_data);
627 err = m5602_write_sensor(sd, PO1030_BLUE_GAIN,
628 &i2c_data, 1);
629
630 return err;
631 }
632
633 static int po1030_get_green_balance(struct gspca_dev *gspca_dev, __s32 *val)
634 {
635 struct sd *sd = (struct sd *) gspca_dev;
636 s32 *sensor_settings = sd->sensor_priv;
637
638 *val = sensor_settings[GREEN_BALANCE_IDX];
639 PDEBUG(D_V4L2, "Read green gain %d", *val);
640
641 return 0;
642 }
643
644 static int po1030_set_green_balance(struct gspca_dev *gspca_dev, __s32 val)
645 {
646 struct sd *sd = (struct sd *) gspca_dev;
647 s32 *sensor_settings = sd->sensor_priv;
648 u8 i2c_data;
649 int err;
650
651 sensor_settings[GREEN_BALANCE_IDX] = val;
652 i2c_data = val & 0xff;
653 PDEBUG(D_V4L2, "Set green gain to %d", i2c_data);
654
655 err = m5602_write_sensor(sd, PO1030_GREEN_1_GAIN,
656 &i2c_data, 1);
657 if (err < 0)
658 return err;
659
660 return m5602_write_sensor(sd, PO1030_GREEN_2_GAIN,
661 &i2c_data, 1);
662 }
663
664 static int po1030_get_auto_white_balance(struct gspca_dev *gspca_dev,
665 __s32 *val)
666 {
667 struct sd *sd = (struct sd *) gspca_dev;
668 s32 *sensor_settings = sd->sensor_priv;
669
670 *val = sensor_settings[AUTO_WHITE_BALANCE_IDX];
671 PDEBUG(D_V4L2, "Auto white balancing is %d", *val);
672
673 return 0;
674 }
675
676 static int po1030_set_auto_white_balance(struct gspca_dev *gspca_dev,
677 __s32 val)
678 {
679 struct sd *sd = (struct sd *) gspca_dev;
680 s32 *sensor_settings = sd->sensor_priv;
681 u8 i2c_data;
682 int err;
683
684 sensor_settings[AUTO_WHITE_BALANCE_IDX] = val;
685
686 err = m5602_read_sensor(sd, PO1030_AUTOCTRL1, &i2c_data, 1);
687 if (err < 0)
688 return err;
689
690 PDEBUG(D_V4L2, "Set auto white balance to %d", val);
691 i2c_data = (i2c_data & 0xfe) | (val & 0x01);
692 err = m5602_write_sensor(sd, PO1030_AUTOCTRL1, &i2c_data, 1);
693 return err;
694 }
695
696 static int po1030_get_auto_exposure(struct gspca_dev *gspca_dev,
697 __s32 *val)
698 {
699 struct sd *sd = (struct sd *) gspca_dev;
700 s32 *sensor_settings = sd->sensor_priv;
701
702 *val = sensor_settings[AUTO_EXPOSURE_IDX];
703 PDEBUG(D_V4L2, "Auto exposure is %d", *val);
704 return 0;
705 }
706
707 static int po1030_set_auto_exposure(struct gspca_dev *gspca_dev,
708 __s32 val)
709 {
710 struct sd *sd = (struct sd *) gspca_dev;
711 s32 *sensor_settings = sd->sensor_priv;
712 u8 i2c_data;
713 int err;
714
715 sensor_settings[AUTO_EXPOSURE_IDX] = val;
716 err = m5602_read_sensor(sd, PO1030_AUTOCTRL1, &i2c_data, 1);
717 if (err < 0)
718 return err;
719
720 PDEBUG(D_V4L2, "Set auto exposure to %d", val);
721 i2c_data = (i2c_data & 0xfd) | ((val & 0x01) << 1);
722 return m5602_write_sensor(sd, PO1030_AUTOCTRL1, &i2c_data, 1);
723 }
724
725 void po1030_disconnect(struct sd *sd)
726 {
727 sd->sensor = NULL;
728 kfree(sd->sensor_priv);
729 }
730
731 static void po1030_dump_registers(struct sd *sd)
732 {
733 int address;
734 u8 value = 0;
735
736 info("Dumping the po1030 sensor core registers");
737 for (address = 0; address < 0x7f; address++) {
738 m5602_read_sensor(sd, address, &value, 1);
739 info("register 0x%x contains 0x%x",
740 address, value);
741 }
742
743 info("po1030 register state dump complete");
744
745 info("Probing for which registers that are read/write");
746 for (address = 0; address < 0xff; address++) {
747 u8 old_value, ctrl_value;
748 u8 test_value[2] = {0xff, 0xff};
749
750 m5602_read_sensor(sd, address, &old_value, 1);
751 m5602_write_sensor(sd, address, test_value, 1);
752 m5602_read_sensor(sd, address, &ctrl_value, 1);
753
754 if (ctrl_value == test_value[0])
755 info("register 0x%x is writeable", address);
756 else
757 info("register 0x%x is read only", address);
758
759 /* Restore original value */
760 m5602_write_sensor(sd, address, &old_value, 1);
761 }
762 }
Linux for Ginger Game Console