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19#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
20
21#include "m5602_mt9m111.h"
22
23static int mt9m111_set_vflip(struct gspca_dev *gspca_dev, __s32 val);
24static int mt9m111_get_vflip(struct gspca_dev *gspca_dev, __s32 *val);
25static int mt9m111_get_hflip(struct gspca_dev *gspca_dev, __s32 *val);
26static int mt9m111_set_hflip(struct gspca_dev *gspca_dev, __s32 val);
27static int mt9m111_get_gain(struct gspca_dev *gspca_dev, __s32 *val);
28static int mt9m111_set_gain(struct gspca_dev *gspca_dev, __s32 val);
29static int mt9m111_set_auto_white_balance(struct gspca_dev *gspca_dev,
30 __s32 val);
31static int mt9m111_get_auto_white_balance(struct gspca_dev *gspca_dev,
32 __s32 *val);
33static int mt9m111_get_green_balance(struct gspca_dev *gspca_dev, __s32 *val);
34static int mt9m111_set_green_balance(struct gspca_dev *gspca_dev, __s32 val);
35static int mt9m111_get_blue_balance(struct gspca_dev *gspca_dev, __s32 *val);
36static int mt9m111_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val);
37static int mt9m111_get_red_balance(struct gspca_dev *gspca_dev, __s32 *val);
38static int mt9m111_set_red_balance(struct gspca_dev *gspca_dev, __s32 val);
39
40static struct v4l2_pix_format mt9m111_modes[] = {
41 {
42 640,
43 480,
44 V4L2_PIX_FMT_SBGGR8,
45 V4L2_FIELD_NONE,
46 .sizeimage = 640 * 480,
47 .bytesperline = 640,
48 .colorspace = V4L2_COLORSPACE_SRGB,
49 .priv = 0
50 }
51};
52
53static const struct ctrl mt9m111_ctrls[] = {
54#define VFLIP_IDX 0
55 {
56 {
57 .id = V4L2_CID_VFLIP,
58 .type = V4L2_CTRL_TYPE_BOOLEAN,
59 .name = "vertical flip",
60 .minimum = 0,
61 .maximum = 1,
62 .step = 1,
63 .default_value = 0
64 },
65 .set = mt9m111_set_vflip,
66 .get = mt9m111_get_vflip
67 },
68#define HFLIP_IDX 1
69 {
70 {
71 .id = V4L2_CID_HFLIP,
72 .type = V4L2_CTRL_TYPE_BOOLEAN,
73 .name = "horizontal flip",
74 .minimum = 0,
75 .maximum = 1,
76 .step = 1,
77 .default_value = 0
78 },
79 .set = mt9m111_set_hflip,
80 .get = mt9m111_get_hflip
81 },
82#define GAIN_IDX 2
83 {
84 {
85 .id = V4L2_CID_GAIN,
86 .type = V4L2_CTRL_TYPE_INTEGER,
87 .name = "gain",
88 .minimum = 0,
89 .maximum = (INITIAL_MAX_GAIN - 1) * 2 * 2 * 2,
90 .step = 1,
91 .default_value = MT9M111_DEFAULT_GAIN,
92 .flags = V4L2_CTRL_FLAG_SLIDER
93 },
94 .set = mt9m111_set_gain,
95 .get = mt9m111_get_gain
96 },
97#define AUTO_WHITE_BALANCE_IDX 3
98 {
99 {
100 .id = V4L2_CID_AUTO_WHITE_BALANCE,
101 .type = V4L2_CTRL_TYPE_BOOLEAN,
102 .name = "auto white balance",
103 .minimum = 0,
104 .maximum = 1,
105 .step = 1,
106 .default_value = 0,
107 },
108 .set = mt9m111_set_auto_white_balance,
109 .get = mt9m111_get_auto_white_balance
110 },
111#define GREEN_BALANCE_IDX 4
112 {
113 {
114 .id = M5602_V4L2_CID_GREEN_BALANCE,
115 .type = V4L2_CTRL_TYPE_INTEGER,
116 .name = "green balance",
117 .minimum = 0x00,
118 .maximum = 0x7ff,
119 .step = 0x1,
120 .default_value = MT9M111_GREEN_GAIN_DEFAULT,
121 .flags = V4L2_CTRL_FLAG_SLIDER
122 },
123 .set = mt9m111_set_green_balance,
124 .get = mt9m111_get_green_balance
125 },
126#define BLUE_BALANCE_IDX 5
127 {
128 {
129 .id = V4L2_CID_BLUE_BALANCE,
130 .type = V4L2_CTRL_TYPE_INTEGER,
131 .name = "blue balance",
132 .minimum = 0x00,
133 .maximum = 0x7ff,
134 .step = 0x1,
135 .default_value = MT9M111_BLUE_GAIN_DEFAULT,
136 .flags = V4L2_CTRL_FLAG_SLIDER
137 },
138 .set = mt9m111_set_blue_balance,
139 .get = mt9m111_get_blue_balance
140 },
141#define RED_BALANCE_IDX 5
142 {
143 {
144 .id = V4L2_CID_RED_BALANCE,
145 .type = V4L2_CTRL_TYPE_INTEGER,
146 .name = "red balance",
147 .minimum = 0x00,
148 .maximum = 0x7ff,
149 .step = 0x1,
150 .default_value = MT9M111_RED_GAIN_DEFAULT,
151 .flags = V4L2_CTRL_FLAG_SLIDER
152 },
153 .set = mt9m111_set_red_balance,
154 .get = mt9m111_get_red_balance
155 },
156};
157
158static void mt9m111_dump_registers(struct sd *sd);
159
160int mt9m111_probe(struct sd *sd)
161{
162 u8 data[2] = {0x00, 0x00};
163 int i;
164 s32 *sensor_settings;
165
166 if (force_sensor) {
167 if (force_sensor == MT9M111_SENSOR) {
168 pr_info("Forcing a %s sensor\n", mt9m111.name);
169 goto sensor_found;
170 }
171
172
173 return -ENODEV;
174 }
175
176 PDEBUG(D_PROBE, "Probing for a mt9m111 sensor");
177
178
179 for (i = 0; i < ARRAY_SIZE(preinit_mt9m111); i++) {
180 if (preinit_mt9m111[i][0] == BRIDGE) {
181 m5602_write_bridge(sd,
182 preinit_mt9m111[i][1],
183 preinit_mt9m111[i][2]);
184 } else {
185 data[0] = preinit_mt9m111[i][2];
186 data[1] = preinit_mt9m111[i][3];
187 m5602_write_sensor(sd,
188 preinit_mt9m111[i][1], data, 2);
189 }
190 }
191
192 if (m5602_read_sensor(sd, MT9M111_SC_CHIPVER, data, 2))
193 return -ENODEV;
194
195 if ((data[0] == 0x14) && (data[1] == 0x3a)) {
196 pr_info("Detected a mt9m111 sensor\n");
197 goto sensor_found;
198 }
199
200 return -ENODEV;
201
202sensor_found:
203 sensor_settings = kmalloc(ARRAY_SIZE(mt9m111_ctrls) * sizeof(s32),
204 GFP_KERNEL);
205 if (!sensor_settings)
206 return -ENOMEM;
207
208 sd->gspca_dev.cam.cam_mode = mt9m111_modes;
209 sd->gspca_dev.cam.nmodes = ARRAY_SIZE(mt9m111_modes);
210 sd->desc->ctrls = mt9m111_ctrls;
211 sd->desc->nctrls = ARRAY_SIZE(mt9m111_ctrls);
212
213 for (i = 0; i < ARRAY_SIZE(mt9m111_ctrls); i++)
214 sensor_settings[i] = mt9m111_ctrls[i].qctrl.default_value;
215 sd->sensor_priv = sensor_settings;
216
217 return 0;
218}
219
220int mt9m111_init(struct sd *sd)
221{
222 int i, err = 0;
223 s32 *sensor_settings = sd->sensor_priv;
224
225
226 for (i = 0; i < ARRAY_SIZE(init_mt9m111) && !err; i++) {
227 u8 data[2];
228
229 if (init_mt9m111[i][0] == BRIDGE) {
230 err = m5602_write_bridge(sd,
231 init_mt9m111[i][1],
232 init_mt9m111[i][2]);
233 } else {
234 data[0] = init_mt9m111[i][2];
235 data[1] = init_mt9m111[i][3];
236 err = m5602_write_sensor(sd,
237 init_mt9m111[i][1], data, 2);
238 }
239 }
240
241 if (dump_sensor)
242 mt9m111_dump_registers(sd);
243
244 err = mt9m111_set_vflip(&sd->gspca_dev, sensor_settings[VFLIP_IDX]);
245 if (err < 0)
246 return err;
247
248 err = mt9m111_set_hflip(&sd->gspca_dev, sensor_settings[HFLIP_IDX]);
249 if (err < 0)
250 return err;
251
252 err = mt9m111_set_green_balance(&sd->gspca_dev,
253 sensor_settings[GREEN_BALANCE_IDX]);
254 if (err < 0)
255 return err;
256
257 err = mt9m111_set_blue_balance(&sd->gspca_dev,
258 sensor_settings[BLUE_BALANCE_IDX]);
259 if (err < 0)
260 return err;
261
262 err = mt9m111_set_red_balance(&sd->gspca_dev,
263 sensor_settings[RED_BALANCE_IDX]);
264 if (err < 0)
265 return err;
266
267 return mt9m111_set_gain(&sd->gspca_dev, sensor_settings[GAIN_IDX]);
268}
269
270int mt9m111_start(struct sd *sd)
271{
272 int i, err = 0;
273 u8 data[2];
274 struct cam *cam = &sd->gspca_dev.cam;
275 s32 *sensor_settings = sd->sensor_priv;
276
277 int width = cam->cam_mode[sd->gspca_dev.curr_mode].width - 1;
278 int height = cam->cam_mode[sd->gspca_dev.curr_mode].height;
279
280 for (i = 0; i < ARRAY_SIZE(start_mt9m111) && !err; i++) {
281 if (start_mt9m111[i][0] == BRIDGE) {
282 err = m5602_write_bridge(sd,
283 start_mt9m111[i][1],
284 start_mt9m111[i][2]);
285 } else {
286 data[0] = start_mt9m111[i][2];
287 data[1] = start_mt9m111[i][3];
288 err = m5602_write_sensor(sd,
289 start_mt9m111[i][1], data, 2);
290 }
291 }
292 if (err < 0)
293 return err;
294
295 err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, (height >> 8) & 0xff);
296 if (err < 0)
297 return err;
298
299 err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, (height & 0xff));
300 if (err < 0)
301 return err;
302
303 for (i = 0; i < 2 && !err; i++)
304 err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, 0);
305 if (err < 0)
306 return err;
307
308 err = m5602_write_bridge(sd, M5602_XB_SIG_INI, 0);
309 if (err < 0)
310 return err;
311
312 err = m5602_write_bridge(sd, M5602_XB_SIG_INI, 2);
313 if (err < 0)
314 return err;
315
316 for (i = 0; i < 2 && !err; i++)
317 err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA, 0);
318 if (err < 0)
319 return err;
320
321 err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA,
322 (width >> 8) & 0xff);
323 if (err < 0)
324 return err;
325
326 err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA, width & 0xff);
327 if (err < 0)
328 return err;
329
330 err = m5602_write_bridge(sd, M5602_XB_SIG_INI, 0);
331 if (err < 0)
332 return err;
333
334 switch (width) {
335 case 640:
336 PDEBUG(D_V4L2, "Configuring camera for VGA mode");
337 data[0] = MT9M111_RMB_OVER_SIZED;
338 data[1] = MT9M111_RMB_ROW_SKIP_2X |
339 MT9M111_RMB_COLUMN_SKIP_2X |
340 (sensor_settings[VFLIP_IDX] << 0) |
341 (sensor_settings[HFLIP_IDX] << 1);
342
343 err = m5602_write_sensor(sd,
344 MT9M111_SC_R_MODE_CONTEXT_B, data, 2);
345 break;
346
347 case 320:
348 PDEBUG(D_V4L2, "Configuring camera for QVGA mode");
349 data[0] = MT9M111_RMB_OVER_SIZED;
350 data[1] = MT9M111_RMB_ROW_SKIP_4X |
351 MT9M111_RMB_COLUMN_SKIP_4X |
352 (sensor_settings[VFLIP_IDX] << 0) |
353 (sensor_settings[HFLIP_IDX] << 1);
354 err = m5602_write_sensor(sd,
355 MT9M111_SC_R_MODE_CONTEXT_B, data, 2);
356 break;
357 }
358 return err;
359}
360
361void mt9m111_disconnect(struct sd *sd)
362{
363 sd->sensor = NULL;
364 kfree(sd->sensor_priv);
365}
366
367static int mt9m111_get_vflip(struct gspca_dev *gspca_dev, __s32 *val)
368{
369 struct sd *sd = (struct sd *) gspca_dev;
370 s32 *sensor_settings = sd->sensor_priv;
371
372 *val = sensor_settings[VFLIP_IDX];
373 PDEBUG(D_V4L2, "Read vertical flip %d", *val);
374
375 return 0;
376}
377
378static int mt9m111_set_vflip(struct gspca_dev *gspca_dev, __s32 val)
379{
380 int err;
381 u8 data[2] = {0x00, 0x00};
382 struct sd *sd = (struct sd *) gspca_dev;
383 s32 *sensor_settings = sd->sensor_priv;
384
385 PDEBUG(D_V4L2, "Set vertical flip to %d", val);
386
387 sensor_settings[VFLIP_IDX] = val;
388
389
390 val = !val;
391
392
393 err = m5602_write_sensor(sd, MT9M111_PAGE_MAP, data, 2);
394 if (err < 0)
395 return err;
396
397 err = m5602_read_sensor(sd, MT9M111_SC_R_MODE_CONTEXT_B, data, 2);
398 if (err < 0)
399 return err;
400
401 data[1] = (data[1] & 0xfe) | val;
402 err = m5602_write_sensor(sd, MT9M111_SC_R_MODE_CONTEXT_B,
403 data, 2);
404 return err;
405}
406
407static int mt9m111_get_hflip(struct gspca_dev *gspca_dev, __s32 *val)
408{
409 struct sd *sd = (struct sd *) gspca_dev;
410 s32 *sensor_settings = sd->sensor_priv;
411
412 *val = sensor_settings[HFLIP_IDX];
413 PDEBUG(D_V4L2, "Read horizontal flip %d", *val);
414
415 return 0;
416}
417
418static int mt9m111_set_hflip(struct gspca_dev *gspca_dev, __s32 val)
419{
420 int err;
421 u8 data[2] = {0x00, 0x00};
422 struct sd *sd = (struct sd *) gspca_dev;
423 s32 *sensor_settings = sd->sensor_priv;
424
425 PDEBUG(D_V4L2, "Set horizontal flip to %d", val);
426
427 sensor_settings[HFLIP_IDX] = val;
428
429
430 val = !val;
431
432
433 err = m5602_write_sensor(sd, MT9M111_PAGE_MAP, data, 2);
434 if (err < 0)
435 return err;
436
437 err = m5602_read_sensor(sd, MT9M111_SC_R_MODE_CONTEXT_B, data, 2);
438 if (err < 0)
439 return err;
440
441 data[1] = (data[1] & 0xfd) | ((val << 1) & 0x02);
442 err = m5602_write_sensor(sd, MT9M111_SC_R_MODE_CONTEXT_B,
443 data, 2);
444 return err;
445}
446
447static int mt9m111_get_gain(struct gspca_dev *gspca_dev, __s32 *val)
448{
449 struct sd *sd = (struct sd *) gspca_dev;
450 s32 *sensor_settings = sd->sensor_priv;
451
452 *val = sensor_settings[GAIN_IDX];
453 PDEBUG(D_V4L2, "Read gain %d", *val);
454
455 return 0;
456}
457
458static int mt9m111_set_auto_white_balance(struct gspca_dev *gspca_dev,
459 __s32 val)
460{
461 struct sd *sd = (struct sd *) gspca_dev;
462 s32 *sensor_settings = sd->sensor_priv;
463 int err;
464 u8 data[2];
465
466 err = m5602_read_sensor(sd, MT9M111_CP_OPERATING_MODE_CTL, data, 2);
467 if (err < 0)
468 return err;
469
470 sensor_settings[AUTO_WHITE_BALANCE_IDX] = val & 0x01;
471 data[1] = ((data[1] & 0xfd) | ((val & 0x01) << 1));
472
473 err = m5602_write_sensor(sd, MT9M111_CP_OPERATING_MODE_CTL, data, 2);
474
475 PDEBUG(D_V4L2, "Set auto white balance %d", val);
476 return err;
477}
478
479static int mt9m111_get_auto_white_balance(struct gspca_dev *gspca_dev,
480 __s32 *val) {
481 struct sd *sd = (struct sd *) gspca_dev;
482 s32 *sensor_settings = sd->sensor_priv;
483
484 *val = sensor_settings[AUTO_WHITE_BALANCE_IDX];
485 PDEBUG(D_V4L2, "Read auto white balance %d", *val);
486 return 0;
487}
488
489static int mt9m111_set_gain(struct gspca_dev *gspca_dev, __s32 val)
490{
491 int err, tmp;
492 u8 data[2] = {0x00, 0x00};
493 struct sd *sd = (struct sd *) gspca_dev;
494 s32 *sensor_settings = sd->sensor_priv;
495
496 sensor_settings[GAIN_IDX] = val;
497
498
499 err = m5602_write_sensor(sd, MT9M111_PAGE_MAP, data, 2);
500 if (err < 0)
501 return err;
502
503 if (val >= INITIAL_MAX_GAIN * 2 * 2 * 2)
504 return -EINVAL;
505
506 if ((val >= INITIAL_MAX_GAIN * 2 * 2) &&
507 (val < (INITIAL_MAX_GAIN - 1) * 2 * 2 * 2))
508 tmp = (1 << 10) | (val << 9) |
509 (val << 8) | (val / 8);
510 else if ((val >= INITIAL_MAX_GAIN * 2) &&
511 (val < INITIAL_MAX_GAIN * 2 * 2))
512 tmp = (1 << 9) | (1 << 8) | (val / 4);
513 else if ((val >= INITIAL_MAX_GAIN) &&
514 (val < INITIAL_MAX_GAIN * 2))
515 tmp = (1 << 8) | (val / 2);
516 else
517 tmp = val;
518
519 data[1] = (tmp & 0xff);
520 data[0] = (tmp & 0xff00) >> 8;
521 PDEBUG(D_V4L2, "tmp=%d, data[1]=%d, data[0]=%d", tmp,
522 data[1], data[0]);
523
524 err = m5602_write_sensor(sd, MT9M111_SC_GLOBAL_GAIN,
525 data, 2);
526
527 return err;
528}
529
530static int mt9m111_set_green_balance(struct gspca_dev *gspca_dev, __s32 val)
531{
532 int err;
533 u8 data[2];
534 struct sd *sd = (struct sd *) gspca_dev;
535 s32 *sensor_settings = sd->sensor_priv;
536
537 sensor_settings[GREEN_BALANCE_IDX] = val;
538 data[1] = (val & 0xff);
539 data[0] = (val & 0xff00) >> 8;
540
541 PDEBUG(D_V4L2, "Set green balance %d", val);
542 err = m5602_write_sensor(sd, MT9M111_SC_GREEN_1_GAIN,
543 data, 2);
544 if (err < 0)
545 return err;
546
547 return m5602_write_sensor(sd, MT9M111_SC_GREEN_2_GAIN,
548 data, 2);
549}
550
551static int mt9m111_get_green_balance(struct gspca_dev *gspca_dev, __s32 *val)
552{
553 struct sd *sd = (struct sd *) gspca_dev;
554 s32 *sensor_settings = sd->sensor_priv;
555
556 *val = sensor_settings[GREEN_BALANCE_IDX];
557 PDEBUG(D_V4L2, "Read green balance %d", *val);
558 return 0;
559}
560
561static int mt9m111_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val)
562{
563 u8 data[2];
564 struct sd *sd = (struct sd *) gspca_dev;
565 s32 *sensor_settings = sd->sensor_priv;
566
567 sensor_settings[BLUE_BALANCE_IDX] = val;
568 data[1] = (val & 0xff);
569 data[0] = (val & 0xff00) >> 8;
570
571 PDEBUG(D_V4L2, "Set blue balance %d", val);
572
573 return m5602_write_sensor(sd, MT9M111_SC_BLUE_GAIN,
574 data, 2);
575}
576
577static int mt9m111_get_blue_balance(struct gspca_dev *gspca_dev, __s32 *val)
578{
579 struct sd *sd = (struct sd *) gspca_dev;
580 s32 *sensor_settings = sd->sensor_priv;
581
582 *val = sensor_settings[BLUE_BALANCE_IDX];
583 PDEBUG(D_V4L2, "Read blue balance %d", *val);
584 return 0;
585}
586
587static int mt9m111_set_red_balance(struct gspca_dev *gspca_dev, __s32 val)
588{
589 u8 data[2];
590 struct sd *sd = (struct sd *) gspca_dev;
591 s32 *sensor_settings = sd->sensor_priv;
592
593 sensor_settings[RED_BALANCE_IDX] = val;
594 data[1] = (val & 0xff);
595 data[0] = (val & 0xff00) >> 8;
596
597 PDEBUG(D_V4L2, "Set red balance %d", val);
598
599 return m5602_write_sensor(sd, MT9M111_SC_RED_GAIN,
600 data, 2);
601}
602
603static int mt9m111_get_red_balance(struct gspca_dev *gspca_dev, __s32 *val)
604{
605 struct sd *sd = (struct sd *) gspca_dev;
606 s32 *sensor_settings = sd->sensor_priv;
607
608 *val = sensor_settings[RED_BALANCE_IDX];
609 PDEBUG(D_V4L2, "Read red balance %d", *val);
610 return 0;
611}
612
613static void mt9m111_dump_registers(struct sd *sd)
614{
615 u8 address, value[2] = {0x00, 0x00};
616
617 pr_info("Dumping the mt9m111 register state\n");
618
619 pr_info("Dumping the mt9m111 sensor core registers\n");
620 value[1] = MT9M111_SENSOR_CORE;
621 m5602_write_sensor(sd, MT9M111_PAGE_MAP, value, 2);
622 for (address = 0; address < 0xff; address++) {
623 m5602_read_sensor(sd, address, value, 2);
624 pr_info("register 0x%x contains 0x%x%x\n",
625 address, value[0], value[1]);
626 }
627
628 pr_info("Dumping the mt9m111 color pipeline registers\n");
629 value[1] = MT9M111_COLORPIPE;
630 m5602_write_sensor(sd, MT9M111_PAGE_MAP, value, 2);
631 for (address = 0; address < 0xff; address++) {
632 m5602_read_sensor(sd, address, value, 2);
633 pr_info("register 0x%x contains 0x%x%x\n",
634 address, value[0], value[1]);
635 }
636
637 pr_info("Dumping the mt9m111 camera control registers\n");
638 value[1] = MT9M111_CAMERA_CONTROL;
639 m5602_write_sensor(sd, MT9M111_PAGE_MAP, value, 2);
640 for (address = 0; address < 0xff; address++) {
641 m5602_read_sensor(sd, address, value, 2);
642 pr_info("register 0x%x contains 0x%x%x\n",
643 address, value[0], value[1]);
644 }
645
646 pr_info("mt9m111 register state dump complete\n");
647}
648
