1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
|
/*
* Driver for the ov9650 sensor
*
* Copyright (C) 2008 Erik Andrén
* Copyright (C) 2007 Ilyes Gouta. Based on the m5603x Linux Driver Project.
* Copyright (C) 2005 m5603x Linux Driver Project <m5602@x3ng.com.br>
*
* Portions of code to USB interface and ALi driver software,
* Copyright (c) 2006 Willem Duinker
* v4l2 interface modeled after the V4L2 driver
* for SN9C10x PC Camera Controllers
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation, version 2.
*
*/
#include "m5602_ov9650.h"
/* Vertically and horizontally flips the image if matched, needed for machines
where the sensor is mounted upside down */
static
const
struct dmi_system_id ov9650_flip_dmi_table[] = {
{
.ident = "ASUS A6VC",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
DMI_MATCH(DMI_PRODUCT_NAME, "A6VC")
}
},
{
.ident = "ASUS A6VM",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
DMI_MATCH(DMI_PRODUCT_NAME, "A6VM")
}
},
{
.ident = "ASUS A6JC",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
DMI_MATCH(DMI_PRODUCT_NAME, "A6JC")
}
},
{
.ident = "ASUS A6Ja",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
DMI_MATCH(DMI_PRODUCT_NAME, "A6J")
}
},
{
.ident = "ASUS A6Kt",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
DMI_MATCH(DMI_PRODUCT_NAME, "A6Kt")
}
},
{
.ident = "Alienware Aurora m9700",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "alienware"),
DMI_MATCH(DMI_PRODUCT_NAME, "Aurora m9700")
}
},
{ }
};
static void ov9650_dump_registers(struct sd *sd);
int ov9650_probe(struct sd *sd)
{
u8 prod_id = 0, ver_id = 0, i;
if (force_sensor) {
if (force_sensor == OV9650_SENSOR) {
info("Forcing an %s sensor", ov9650.name);
goto sensor_found;
}
/* If we want to force another sensor,
don't try to probe this one */
return -ENODEV;
}
info("Probing for an ov9650 sensor");
/* Run the pre-init to actually probe the unit */
for (i = 0; i < ARRAY_SIZE(preinit_ov9650); i++) {
u8 data = preinit_ov9650[i][2];
if (preinit_ov9650[i][0] == SENSOR)
m5602_write_sensor(sd,
preinit_ov9650[i][1], &data, 1);
else
m5602_write_bridge(sd, preinit_ov9650[i][1], data);
}
if (m5602_read_sensor(sd, OV9650_PID, &prod_id, 1))
return -ENODEV;
if (m5602_read_sensor(sd, OV9650_VER, &ver_id, 1))
return -ENODEV;
if ((prod_id == 0x96) && (ver_id == 0x52)) {
info("Detected an ov9650 sensor");
goto sensor_found;
}
return -ENODEV;
sensor_found:
sd->gspca_dev.cam.cam_mode = ov9650.modes;
sd->gspca_dev.cam.nmodes = ov9650.nmodes;
sd->desc->ctrls = ov9650.ctrls;
sd->desc->nctrls = ov9650.nctrls;
return 0;
}
int ov9650_init(struct sd *sd)
{
int i, err = 0;
u8 data;
if (dump_sensor)
ov9650_dump_registers(sd);
for (i = 0; i < ARRAY_SIZE(init_ov9650) && !err; i++) {
data = init_ov9650[i][2];
if (init_ov9650[i][0] == SENSOR)
err = m5602_write_sensor(sd, init_ov9650[i][1],
&data, 1);
else
err = m5602_write_bridge(sd, init_ov9650[i][1], data);
}
if (dmi_check_system(ov9650_flip_dmi_table) && !err) {
info("vflip quirk active");
data = 0x30;
err = m5602_write_sensor(sd, OV9650_MVFP, &data, 1);
}
return err;
}
int ov9650_start(struct sd *sd)
{
int i, err = 0;
struct cam *cam = &sd->gspca_dev.cam;
for (i = 0; i < ARRAY_SIZE(res_init_ov9650) && !err; i++) {
if (res_init_ov9650[i][0] == BRIDGE)
err = m5602_write_bridge(sd, res_init_ov9650[i][1], res_init_ov9650[i][2]);
else if (res_init_ov9650[i][0] == SENSOR) {
u8 data = res_init_ov9650[i][2];
err = m5602_write_sensor(sd, res_init_ov9650[i][1], &data, 1);
}
}
if (err < 0)
return err;
switch (cam->cam_mode[sd->gspca_dev.curr_mode].width)
{
case 640:
PDEBUG(D_V4L2, "Configuring camera for VGA mode");
for (i = 0; i < ARRAY_SIZE(VGA_ov9650) && !err; i++) {
if (VGA_ov9650[i][0] == SENSOR) {
u8 data = VGA_ov9650[i][2];
err = m5602_write_sensor(sd,
VGA_ov9650[i][1], &data, 1);
} else {
err = m5602_write_bridge(sd, VGA_ov9650[i][1], VGA_ov9650[i][2]);
}
}
break;
case 352:
PDEBUG(D_V4L2, "Configuring camera for CIF mode");
for (i = 0; i < ARRAY_SIZE(CIF_ov9650) && !err; i++) {
if (CIF_ov9650[i][0] == SENSOR) {
u8 data = CIF_ov9650[i][2];
err = m5602_write_sensor(sd,
CIF_ov9650[i][1], &data, 1);
} else {
err = m5602_write_bridge(sd, CIF_ov9650[i][1], CIF_ov9650[i][2]);
}
}
break;
case 320:
PDEBUG(D_V4L2, "Configuring camera for QVGA mode");
for (i = 0; i < ARRAY_SIZE(QVGA_ov9650) && !err; i++) {
if (QVGA_ov9650[i][0] == SENSOR) {
u8 data = QVGA_ov9650[i][2];
err = m5602_write_sensor(sd,
QVGA_ov9650[i][1], &data, 1);
} else {
err = m5602_write_bridge(sd, QVGA_ov9650[i][1], QVGA_ov9650[i][2]);
}
}
break;
case 176:
PDEBUG(D_V4L2, "Configuring camera for QCIF mode");
for (i = 0; i < ARRAY_SIZE(QCIF_ov9650) && !err; i++) {
if (QCIF_ov9650[i][0] == SENSOR) {
u8 data = QCIF_ov9650[i][2];
err = m5602_write_sensor(sd,
QCIF_ov9650[i][1], &data, 1);
} else {
err = m5602_write_bridge(sd, QCIF_ov9650[i][1], QCIF_ov9650[i][2]);
}
}
break;
}
return err;
}
int ov9650_stop(struct sd *sd)
{
u8 data = OV9650_SOFT_SLEEP | OV9650_OUTPUT_DRIVE_2X;
return m5602_write_sensor(sd, OV9650_COM2, &data, 1);
}
int ov9650_power_down(struct sd *sd)
{
int i, err = 0;
for (i = 0; i < ARRAY_SIZE(power_down_ov9650) && !err; i++) {
u8 data = power_down_ov9650[i][2];
if (power_down_ov9650[i][0] == SENSOR)
err = m5602_write_sensor(sd,
power_down_ov9650[i][1], &data, 1);
else
err = m5602_write_bridge(sd, power_down_ov9650[i][1],
data);
}
return err;
}
int ov9650_get_exposure(struct gspca_dev *gspca_dev, __s32 *val)
{
struct sd *sd = (struct sd *) gspca_dev;
u8 i2c_data;
int err;
err = m5602_read_sensor(sd, OV9650_COM1, &i2c_data, 1);
if (err < 0)
return err;
*val = i2c_data & 0x03;
err = m5602_read_sensor(sd, OV9650_AECH, &i2c_data, 1);
if (err < 0)
return err;
*val |= (i2c_data << 2);
err = m5602_read_sensor(sd, OV9650_AECHM, &i2c_data, 1);
if (err < 0)
return err;
*val |= (i2c_data & 0x3f) << 10;
PDEBUG(D_V4L2, "Read exposure %d", *val);
return err;
}
int ov9650_set_exposure(struct gspca_dev *gspca_dev, __s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
u8 i2c_data;
int err;
PDEBUG(D_V4L2, "Set exposure to %d",
val & 0xffff);
/* The 6 MSBs */
i2c_data = (val >> 10) & 0x3f;
err = m5602_write_sensor(sd, OV9650_AECHM,
&i2c_data, 1);
if (err < 0)
return err;
/* The 8 middle bits */
i2c_data = (val >> 2) & 0xff;
err = m5602_write_sensor(sd, OV9650_AECH,
&i2c_data, 1);
if (err < 0)
return err;
/* The 2 LSBs */
i2c_data = val & 0x03;
err = m5602_write_sensor(sd, OV9650_COM1, &i2c_data, 1);
return err;
}
int ov9650_get_gain(struct gspca_dev *gspca_dev, __s32 *val)
{
int err;
u8 i2c_data;
struct sd *sd = (struct sd *) gspca_dev;
m5602_read_sensor(sd, OV9650_VREF, &i2c_data, 1);
*val = (i2c_data & 0x03) << 8;
err = m5602_read_sensor(sd, OV9650_GAIN, &i2c_data, 1);
*val |= i2c_data;
PDEBUG(D_V4L2, "Read gain %d", *val);
return err;
}
int ov9650_set_gain(struct gspca_dev *gspca_dev, __s32 val)
{
int err;
u8 i2c_data;
struct sd *sd = (struct sd *) gspca_dev;
/* The 2 MSB */
/* Read the OV9650_VREF register first to avoid
corrupting the VREF high and low bits */
m5602_read_sensor(sd, OV9650_VREF, &i2c_data, 1);
/* Mask away all uninteresting bits */
i2c_data = ((val & 0x0300) >> 2) |
(i2c_data & 0x3F);
err = m5602_write_sensor(sd, OV9650_VREF, &i2c_data, 1);
/* The 8 LSBs */
i2c_data = val & 0xff;
err = m5602_write_sensor(sd, OV9650_GAIN, &i2c_data, 1);
return err;
}
int ov9650_get_red_balance(struct gspca_dev *gspca_dev, __s32 *val)
{
int err;
u8 i2c_data;
struct sd *sd = (struct sd *) gspca_dev;
err = m5602_read_sensor(sd, OV9650_RED, &i2c_data, 1);
*val = i2c_data;
PDEBUG(D_V4L2, "Read red gain %d", *val);
return err;
}
int ov9650_set_red_balance(struct gspca_dev *gspca_dev, __s32 val)
{
int err;
u8 i2c_data;
struct sd *sd = (struct sd *) gspca_dev;
PDEBUG(D_V4L2, "Set red gain to %d",
val & 0xff);
i2c_data = val & 0xff;
err = m5602_write_sensor(sd, OV9650_RED, &i2c_data, 1);
return err;
}
int ov9650_get_blue_balance(struct gspca_dev *gspca_dev, __s32 *val)
{
int err;
u8 i2c_data;
struct sd *sd = (struct sd *) gspca_dev;
err = m5602_read_sensor(sd, OV9650_BLUE, &i2c_data, 1);
*val = i2c_data;
PDEBUG(D_V4L2, "Read blue gain %d", *val);
return err;
}
int ov9650_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val)
{
int err;
u8 i2c_data;
struct sd *sd = (struct sd *) gspca_dev;
PDEBUG(D_V4L2, "Set blue gain to %d",
val & 0xff);
i2c_data = val & 0xff;
err = m5602_write_sensor(sd, OV9650_BLUE, &i2c_data, 1);
return err;
}
int ov9650_get_hflip(struct gspca_dev *gspca_dev, __s32 *val)
{
int err;
u8 i2c_data;
struct sd *sd = (struct sd *) gspca_dev;
err = m5602_read_sensor(sd, OV9650_MVFP, &i2c_data, 1);
if (dmi_check_system(ov9650_flip_dmi_table))
*val = ((i2c_data & OV9650_HFLIP) >> 5) ? 0 : 1;
else
*val = (i2c_data & OV9650_HFLIP) >> 5;
PDEBUG(D_V4L2, "Read horizontal flip %d", *val);
return err;
}
int ov9650_set_hflip(struct gspca_dev *gspca_dev, __s32 val)
{
int err;
u8 i2c_data;
struct sd *sd = (struct sd *) gspca_dev;
PDEBUG(D_V4L2, "Set horizontal flip to %d", val);
err = m5602_read_sensor(sd, OV9650_MVFP, &i2c_data, 1);
if (err < 0)
return err;
if (dmi_check_system(ov9650_flip_dmi_table))
i2c_data = ((i2c_data & 0xdf) |
(((val ? 0 : 1) & 0x01) << 5));
else
i2c_data = ((i2c_data & 0xdf) |
((val & 0x01) << 5));
err = m5602_write_sensor(sd, OV9650_MVFP, &i2c_data, 1);
return err;
}
int ov9650_get_vflip(struct gspca_dev *gspca_dev, __s32 *val)
{
int err;
u8 i2c_data;
struct sd *sd = (struct sd *) gspca_dev;
err = m5602_read_sensor(sd, OV9650_MVFP, &i2c_data, 1);
if (dmi_check_system(ov9650_flip_dmi_table))
*val = ((i2c_data & 0x10) >> 4) ? 0 : 1;
else
*val = (i2c_data & 0x10) >> 4;
PDEBUG(D_V4L2, "Read vertical flip %d", *val);
return err;
}
int ov9650_set_vflip(struct gspca_dev *gspca_dev, __s32 val)
{
int err;
u8 i2c_data;
struct sd *sd = (struct sd *) gspca_dev;
PDEBUG(D_V4L2, "Set vertical flip to %d", val);
err = m5602_read_sensor(sd, OV9650_MVFP, &i2c_data, 1);
if (err < 0)
return err;
if (dmi_check_system(ov9650_flip_dmi_table))
i2c_data = ((i2c_data & 0xef) |
(((val ? 0 : 1) & 0x01) << 4));
else
i2c_data = ((i2c_data & 0xef) |
((val & 0x01) << 4));
err = m5602_write_sensor(sd, OV9650_MVFP, &i2c_data, 1);
return err;
}
int ov9650_get_brightness(struct gspca_dev *gspca_dev, __s32 *val)
{
int err;
u8 i2c_data;
struct sd *sd = (struct sd *) gspca_dev;
err = m5602_read_sensor(sd, OV9650_VREF, &i2c_data, 1);
if (err < 0)
return err;
*val = (i2c_data & 0x03) << 8;
err = m5602_read_sensor(sd, OV9650_GAIN, &i2c_data, 1);
*val |= i2c_data;
PDEBUG(D_V4L2, "Read gain %d", *val);
return err;
}
int ov9650_set_brightness(struct gspca_dev *gspca_dev, __s32 val)
{
int err;
u8 i2c_data;
struct sd *sd = (struct sd *) gspca_dev;
PDEBUG(D_V4L2, "Set gain to %d", val & 0x3ff);
/* Read the OV9650_VREF register first to avoid
corrupting the VREF high and low bits */
err = m5602_read_sensor(sd, OV9650_VREF, &i2c_data, 1);
if (err < 0)
return err;
/* Mask away all uninteresting bits */
i2c_data = ((val & 0x0300) >> 2) | (i2c_data & 0x3F);
err = m5602_write_sensor(sd, OV9650_VREF, &i2c_data, 1);
if (err < 0)
return err;
/* The 8 LSBs */
i2c_data = val & 0xff;
err = m5602_write_sensor(sd, OV9650_GAIN, &i2c_data, 1);
return err;
}
int ov9650_get_auto_white_balance(struct gspca_dev *gspca_dev, __s32 *val)
{
int err;
u8 i2c_data;
struct sd *sd = (struct sd *) gspca_dev;
err = m5602_read_sensor(sd, OV9650_COM8, &i2c_data, 1);
*val = (i2c_data & OV9650_AWB_EN) >> 1;
PDEBUG(D_V4L2, "Read auto white balance %d", *val);
return err;
}
int ov9650_set_auto_white_balance(struct gspca_dev *gspca_dev, __s32 val)
{
int err;
u8 i2c_data;
struct sd *sd = (struct sd *) gspca_dev;
PDEBUG(D_V4L2, "Set auto white balance to %d", val);
err = m5602_read_sensor(sd, OV9650_COM8, &i2c_data, 1);
if (err < 0)
return err;
i2c_data = ((i2c_data & 0xfd) | ((val & 0x01) << 1));
err = m5602_write_sensor(sd, OV9650_COM8, &i2c_data, 1);
return err;
}
int ov9650_get_auto_gain(struct gspca_dev *gspca_dev, __s32 *val)
{
int err;
u8 i2c_data;
struct sd *sd = (struct sd *) gspca_dev;
err = m5602_read_sensor(sd, OV9650_COM8, &i2c_data, 1);
*val = (i2c_data & OV9650_AGC_EN) >> 2;
PDEBUG(D_V4L2, "Read auto gain control %d", *val);
return err;
}
int ov9650_set_auto_gain(struct gspca_dev *gspca_dev, __s32 val)
{
int err;
u8 i2c_data;
struct sd *sd = (struct sd *) gspca_dev;
PDEBUG(D_V4L2, "Set auto gain control to %d", val);
err = m5602_read_sensor(sd, OV9650_COM8, &i2c_data, 1);
if (err < 0)
return err;
i2c_data = ((i2c_data & 0xfb) | ((val & 0x01) << 2));
err = m5602_write_sensor(sd, OV9650_COM8, &i2c_data, 1);
return err;
}
static void ov9650_dump_registers(struct sd *sd)
{
int address;
info("Dumping the ov9650 register state");
for (address = 0; address < 0xa9; address++) {
u8 value;
m5602_read_sensor(sd, address, &value, 1);
info("register 0x%x contains 0x%x",
address, value);
}
info("ov9650 register state dump complete");
info("Probing for which registers that are read/write");
for (address = 0; address < 0xff; address++) {
u8 old_value, ctrl_value;
u8 test_value[2] = {0xff, 0xff};
m5602_read_sensor(sd, address, &old_value, 1);
m5602_write_sensor(sd, address, test_value, 1);
m5602_read_sensor(sd, address, &ctrl_value, 1);
if (ctrl_value == test_value[0])
info("register 0x%x is writeable", address);
else
info("register 0x%x is read only", address);
/* Restore original value */
m5602_write_sensor(sd, address, &old_value, 1);
}
}
|
