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8#include <linux/delay.h>
9#include <linux/errno.h>
10#include <linux/gpio.h>
11#include <linux/i2c.h>
12#include <linux/init.h>
13#include <linux/module.h>
14#include <linux/slab.h>
15#include <linux/types.h>
16#include <linux/videodev2.h>
17
18#include <media/i2c/adv7183.h>
19#include <media/v4l2-ctrls.h>
20#include <media/v4l2-device.h>
21
22#include "adv7183_regs.h"
23
24struct adv7183 {
25 struct v4l2_subdev sd;
26 struct v4l2_ctrl_handler hdl;
27
28 v4l2_std_id std;
29 u32 input;
30 u32 output;
31 unsigned reset_pin;
32 unsigned oe_pin;
33 struct v4l2_mbus_framefmt fmt;
34};
35
36
37
38
39
40static const unsigned char adv7183_init_regs[] = {
41 ADV7183_IN_CTRL, 0x04,
42 ADV7183_DIGI_CLAMP_CTRL_1, 0x00,
43 ADV7183_SHAP_FILT_CTRL, 0x41,
44 ADV7183_ADC_CTRL, 0x16,
45 ADV7183_CTI_DNR_CTRL_4, 0x04,
46
47 ADV7183_ADI_CTRL, 0x80,
48 ADV7183_CTI_DNR_CTRL_4, 0x20,
49 0x52, 0x18,
50 0x58, 0xED,
51 0x77, 0xC5,
52 0x7C, 0x93,
53 0x7D, 0x00,
54 0xD0, 0x48,
55 0xD5, 0xA0,
56 0xD7, 0xEA,
57 ADV7183_SD_SATURATION_CR, 0x3E,
58 ADV7183_PAL_V_END, 0x3E,
59 ADV7183_PAL_F_TOGGLE, 0x0F,
60 ADV7183_ADI_CTRL, 0x00,
61};
62
63static inline struct adv7183 *to_adv7183(struct v4l2_subdev *sd)
64{
65 return container_of(sd, struct adv7183, sd);
66}
67static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
68{
69 return &container_of(ctrl->handler, struct adv7183, hdl)->sd;
70}
71
72static inline int adv7183_read(struct v4l2_subdev *sd, unsigned char reg)
73{
74 struct i2c_client *client = v4l2_get_subdevdata(sd);
75
76 return i2c_smbus_read_byte_data(client, reg);
77}
78
79static inline int adv7183_write(struct v4l2_subdev *sd, unsigned char reg,
80 unsigned char value)
81{
82 struct i2c_client *client = v4l2_get_subdevdata(sd);
83
84 return i2c_smbus_write_byte_data(client, reg, value);
85}
86
87static int adv7183_writeregs(struct v4l2_subdev *sd,
88 const unsigned char *regs, unsigned int num)
89{
90 unsigned char reg, data;
91 unsigned int cnt = 0;
92
93 if (num & 0x1) {
94 v4l2_err(sd, "invalid regs array\n");
95 return -1;
96 }
97
98 while (cnt < num) {
99 reg = *regs++;
100 data = *regs++;
101 cnt += 2;
102
103 adv7183_write(sd, reg, data);
104 }
105 return 0;
106}
107
108static int adv7183_log_status(struct v4l2_subdev *sd)
109{
110 struct adv7183 *decoder = to_adv7183(sd);
111
112 v4l2_info(sd, "adv7183: Input control = 0x%02x\n",
113 adv7183_read(sd, ADV7183_IN_CTRL));
114 v4l2_info(sd, "adv7183: Video selection = 0x%02x\n",
115 adv7183_read(sd, ADV7183_VD_SEL));
116 v4l2_info(sd, "adv7183: Output control = 0x%02x\n",
117 adv7183_read(sd, ADV7183_OUT_CTRL));
118 v4l2_info(sd, "adv7183: Extended output control = 0x%02x\n",
119 adv7183_read(sd, ADV7183_EXT_OUT_CTRL));
120 v4l2_info(sd, "adv7183: Autodetect enable = 0x%02x\n",
121 adv7183_read(sd, ADV7183_AUTO_DET_EN));
122 v4l2_info(sd, "adv7183: Contrast = 0x%02x\n",
123 adv7183_read(sd, ADV7183_CONTRAST));
124 v4l2_info(sd, "adv7183: Brightness = 0x%02x\n",
125 adv7183_read(sd, ADV7183_BRIGHTNESS));
126 v4l2_info(sd, "adv7183: Hue = 0x%02x\n",
127 adv7183_read(sd, ADV7183_HUE));
128 v4l2_info(sd, "adv7183: Default value Y = 0x%02x\n",
129 adv7183_read(sd, ADV7183_DEF_Y));
130 v4l2_info(sd, "adv7183: Default value C = 0x%02x\n",
131 adv7183_read(sd, ADV7183_DEF_C));
132 v4l2_info(sd, "adv7183: ADI control = 0x%02x\n",
133 adv7183_read(sd, ADV7183_ADI_CTRL));
134 v4l2_info(sd, "adv7183: Power Management = 0x%02x\n",
135 adv7183_read(sd, ADV7183_POW_MANAGE));
136 v4l2_info(sd, "adv7183: Status 1 2 and 3 = 0x%02x 0x%02x 0x%02x\n",
137 adv7183_read(sd, ADV7183_STATUS_1),
138 adv7183_read(sd, ADV7183_STATUS_2),
139 adv7183_read(sd, ADV7183_STATUS_3));
140 v4l2_info(sd, "adv7183: Ident = 0x%02x\n",
141 adv7183_read(sd, ADV7183_IDENT));
142 v4l2_info(sd, "adv7183: Analog clamp control = 0x%02x\n",
143 adv7183_read(sd, ADV7183_ANAL_CLAMP_CTRL));
144 v4l2_info(sd, "adv7183: Digital clamp control 1 = 0x%02x\n",
145 adv7183_read(sd, ADV7183_DIGI_CLAMP_CTRL_1));
146 v4l2_info(sd, "adv7183: Shaping filter control 1 and 2 = 0x%02x 0x%02x\n",
147 adv7183_read(sd, ADV7183_SHAP_FILT_CTRL),
148 adv7183_read(sd, ADV7183_SHAP_FILT_CTRL_2));
149 v4l2_info(sd, "adv7183: Comb filter control = 0x%02x\n",
150 adv7183_read(sd, ADV7183_COMB_FILT_CTRL));
151 v4l2_info(sd, "adv7183: ADI control 2 = 0x%02x\n",
152 adv7183_read(sd, ADV7183_ADI_CTRL_2));
153 v4l2_info(sd, "adv7183: Pixel delay control = 0x%02x\n",
154 adv7183_read(sd, ADV7183_PIX_DELAY_CTRL));
155 v4l2_info(sd, "adv7183: Misc gain control = 0x%02x\n",
156 adv7183_read(sd, ADV7183_MISC_GAIN_CTRL));
157 v4l2_info(sd, "adv7183: AGC mode control = 0x%02x\n",
158 adv7183_read(sd, ADV7183_AGC_MODE_CTRL));
159 v4l2_info(sd, "adv7183: Chroma gain control 1 and 2 = 0x%02x 0x%02x\n",
160 adv7183_read(sd, ADV7183_CHRO_GAIN_CTRL_1),
161 adv7183_read(sd, ADV7183_CHRO_GAIN_CTRL_2));
162 v4l2_info(sd, "adv7183: Luma gain control 1 and 2 = 0x%02x 0x%02x\n",
163 adv7183_read(sd, ADV7183_LUMA_GAIN_CTRL_1),
164 adv7183_read(sd, ADV7183_LUMA_GAIN_CTRL_2));
165 v4l2_info(sd, "adv7183: Vsync field control 1 2 and 3 = 0x%02x 0x%02x 0x%02x\n",
166 adv7183_read(sd, ADV7183_VS_FIELD_CTRL_1),
167 adv7183_read(sd, ADV7183_VS_FIELD_CTRL_2),
168 adv7183_read(sd, ADV7183_VS_FIELD_CTRL_3));
169 v4l2_info(sd, "adv7183: Hsync position control 1 2 and 3 = 0x%02x 0x%02x 0x%02x\n",
170 adv7183_read(sd, ADV7183_HS_POS_CTRL_1),
171 adv7183_read(sd, ADV7183_HS_POS_CTRL_2),
172 adv7183_read(sd, ADV7183_HS_POS_CTRL_3));
173 v4l2_info(sd, "adv7183: Polarity = 0x%02x\n",
174 adv7183_read(sd, ADV7183_POLARITY));
175 v4l2_info(sd, "adv7183: ADC control = 0x%02x\n",
176 adv7183_read(sd, ADV7183_ADC_CTRL));
177 v4l2_info(sd, "adv7183: SD offset Cb and Cr = 0x%02x 0x%02x\n",
178 adv7183_read(sd, ADV7183_SD_OFFSET_CB),
179 adv7183_read(sd, ADV7183_SD_OFFSET_CR));
180 v4l2_info(sd, "adv7183: SD saturation Cb and Cr = 0x%02x 0x%02x\n",
181 adv7183_read(sd, ADV7183_SD_SATURATION_CB),
182 adv7183_read(sd, ADV7183_SD_SATURATION_CR));
183 v4l2_info(sd, "adv7183: Drive strength = 0x%02x\n",
184 adv7183_read(sd, ADV7183_DRIVE_STR));
185 v4l2_ctrl_handler_log_status(&decoder->hdl, sd->name);
186 return 0;
187}
188
189static int adv7183_g_std(struct v4l2_subdev *sd, v4l2_std_id *std)
190{
191 struct adv7183 *decoder = to_adv7183(sd);
192
193 *std = decoder->std;
194 return 0;
195}
196
197static int adv7183_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
198{
199 struct adv7183 *decoder = to_adv7183(sd);
200 int reg;
201
202 reg = adv7183_read(sd, ADV7183_IN_CTRL) & 0xF;
203 if (std == V4L2_STD_PAL_60)
204 reg |= 0x60;
205 else if (std == V4L2_STD_NTSC_443)
206 reg |= 0x70;
207 else if (std == V4L2_STD_PAL_N)
208 reg |= 0x90;
209 else if (std == V4L2_STD_PAL_M)
210 reg |= 0xA0;
211 else if (std == V4L2_STD_PAL_Nc)
212 reg |= 0xC0;
213 else if (std & V4L2_STD_PAL)
214 reg |= 0x80;
215 else if (std & V4L2_STD_NTSC)
216 reg |= 0x50;
217 else if (std & V4L2_STD_SECAM)
218 reg |= 0xE0;
219 else
220 return -EINVAL;
221 adv7183_write(sd, ADV7183_IN_CTRL, reg);
222
223 decoder->std = std;
224
225 return 0;
226}
227
228static int adv7183_reset(struct v4l2_subdev *sd, u32 val)
229{
230 int reg;
231
232 reg = adv7183_read(sd, ADV7183_POW_MANAGE) | 0x80;
233 adv7183_write(sd, ADV7183_POW_MANAGE, reg);
234
235 usleep_range(5000, 10000);
236 return 0;
237}
238
239static int adv7183_s_routing(struct v4l2_subdev *sd,
240 u32 input, u32 output, u32 config)
241{
242 struct adv7183 *decoder = to_adv7183(sd);
243 int reg;
244
245 if ((input > ADV7183_COMPONENT1) || (output > ADV7183_16BIT_OUT))
246 return -EINVAL;
247
248 if (input != decoder->input) {
249 decoder->input = input;
250 reg = adv7183_read(sd, ADV7183_IN_CTRL) & 0xF0;
251 switch (input) {
252 case ADV7183_COMPOSITE1:
253 reg |= 0x1;
254 break;
255 case ADV7183_COMPOSITE2:
256 reg |= 0x2;
257 break;
258 case ADV7183_COMPOSITE3:
259 reg |= 0x3;
260 break;
261 case ADV7183_COMPOSITE4:
262 reg |= 0x4;
263 break;
264 case ADV7183_COMPOSITE5:
265 reg |= 0x5;
266 break;
267 case ADV7183_COMPOSITE6:
268 reg |= 0xB;
269 break;
270 case ADV7183_COMPOSITE7:
271 reg |= 0xC;
272 break;
273 case ADV7183_COMPOSITE8:
274 reg |= 0xD;
275 break;
276 case ADV7183_COMPOSITE9:
277 reg |= 0xE;
278 break;
279 case ADV7183_COMPOSITE10:
280 reg |= 0xF;
281 break;
282 case ADV7183_SVIDEO0:
283 reg |= 0x6;
284 break;
285 case ADV7183_SVIDEO1:
286 reg |= 0x7;
287 break;
288 case ADV7183_SVIDEO2:
289 reg |= 0x8;
290 break;
291 case ADV7183_COMPONENT0:
292 reg |= 0x9;
293 break;
294 case ADV7183_COMPONENT1:
295 reg |= 0xA;
296 break;
297 default:
298 break;
299 }
300 adv7183_write(sd, ADV7183_IN_CTRL, reg);
301 }
302
303 if (output != decoder->output) {
304 decoder->output = output;
305 reg = adv7183_read(sd, ADV7183_OUT_CTRL) & 0xC0;
306 switch (output) {
307 case ADV7183_16BIT_OUT:
308 reg |= 0x9;
309 break;
310 default:
311 reg |= 0xC;
312 break;
313 }
314 adv7183_write(sd, ADV7183_OUT_CTRL, reg);
315 }
316
317 return 0;
318}
319
320static int adv7183_s_ctrl(struct v4l2_ctrl *ctrl)
321{
322 struct v4l2_subdev *sd = to_sd(ctrl);
323 int val = ctrl->val;
324
325 switch (ctrl->id) {
326 case V4L2_CID_BRIGHTNESS:
327 if (val < 0)
328 val = 127 - val;
329 adv7183_write(sd, ADV7183_BRIGHTNESS, val);
330 break;
331 case V4L2_CID_CONTRAST:
332 adv7183_write(sd, ADV7183_CONTRAST, val);
333 break;
334 case V4L2_CID_SATURATION:
335 adv7183_write(sd, ADV7183_SD_SATURATION_CB, val >> 8);
336 adv7183_write(sd, ADV7183_SD_SATURATION_CR, (val & 0xFF));
337 break;
338 case V4L2_CID_HUE:
339 adv7183_write(sd, ADV7183_SD_OFFSET_CB, val >> 8);
340 adv7183_write(sd, ADV7183_SD_OFFSET_CR, (val & 0xFF));
341 break;
342 default:
343 return -EINVAL;
344 }
345
346 return 0;
347}
348
349static int adv7183_querystd(struct v4l2_subdev *sd, v4l2_std_id *std)
350{
351 struct adv7183 *decoder = to_adv7183(sd);
352 int reg;
353
354
355 reg = adv7183_read(sd, ADV7183_IN_CTRL) & 0xF;
356 adv7183_write(sd, ADV7183_IN_CTRL, reg);
357
358
359 mdelay(10);
360
361
362 reg = adv7183_read(sd, ADV7183_STATUS_1);
363 switch ((reg >> 0x4) & 0x7) {
364 case 0:
365 *std &= V4L2_STD_NTSC;
366 break;
367 case 1:
368 *std &= V4L2_STD_NTSC_443;
369 break;
370 case 2:
371 *std &= V4L2_STD_PAL_M;
372 break;
373 case 3:
374 *std &= V4L2_STD_PAL_60;
375 break;
376 case 4:
377 *std &= V4L2_STD_PAL;
378 break;
379 case 5:
380 *std &= V4L2_STD_SECAM;
381 break;
382 case 6:
383 *std &= V4L2_STD_PAL_Nc;
384 break;
385 case 7:
386 *std &= V4L2_STD_SECAM;
387 break;
388 default:
389 *std = V4L2_STD_UNKNOWN;
390 break;
391 }
392
393
394 adv7183_s_std(sd, decoder->std);
395 return 0;
396}
397
398static int adv7183_g_input_status(struct v4l2_subdev *sd, u32 *status)
399{
400 int reg;
401
402 *status = V4L2_IN_ST_NO_SIGNAL;
403 reg = adv7183_read(sd, ADV7183_STATUS_1);
404 if (reg < 0)
405 return reg;
406 if (reg & 0x1)
407 *status = 0;
408 return 0;
409}
410
411static int adv7183_enum_mbus_code(struct v4l2_subdev *sd,
412 struct v4l2_subdev_pad_config *cfg,
413 struct v4l2_subdev_mbus_code_enum *code)
414{
415 if (code->pad || code->index > 0)
416 return -EINVAL;
417
418 code->code = MEDIA_BUS_FMT_UYVY8_2X8;
419 return 0;
420}
421
422static int adv7183_set_fmt(struct v4l2_subdev *sd,
423 struct v4l2_subdev_pad_config *cfg,
424 struct v4l2_subdev_format *format)
425{
426 struct adv7183 *decoder = to_adv7183(sd);
427 struct v4l2_mbus_framefmt *fmt = &format->format;
428
429 if (format->pad)
430 return -EINVAL;
431
432 fmt->code = MEDIA_BUS_FMT_UYVY8_2X8;
433 fmt->colorspace = V4L2_COLORSPACE_SMPTE170M;
434 if (decoder->std & V4L2_STD_525_60) {
435 fmt->field = V4L2_FIELD_SEQ_TB;
436 fmt->width = 720;
437 fmt->height = 480;
438 } else {
439 fmt->field = V4L2_FIELD_SEQ_BT;
440 fmt->width = 720;
441 fmt->height = 576;
442 }
443 if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE)
444 decoder->fmt = *fmt;
445 else
446 cfg->try_fmt = *fmt;
447 return 0;
448}
449
450static int adv7183_get_fmt(struct v4l2_subdev *sd,
451 struct v4l2_subdev_pad_config *cfg,
452 struct v4l2_subdev_format *format)
453{
454 struct adv7183 *decoder = to_adv7183(sd);
455
456 if (format->pad)
457 return -EINVAL;
458
459 format->format = decoder->fmt;
460 return 0;
461}
462
463static int adv7183_s_stream(struct v4l2_subdev *sd, int enable)
464{
465 struct adv7183 *decoder = to_adv7183(sd);
466
467 if (enable)
468 gpio_set_value(decoder->oe_pin, 0);
469 else
470 gpio_set_value(decoder->oe_pin, 1);
471 udelay(1);
472 return 0;
473}
474
475#ifdef CONFIG_VIDEO_ADV_DEBUG
476static int adv7183_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
477{
478 reg->val = adv7183_read(sd, reg->reg & 0xff);
479 reg->size = 1;
480 return 0;
481}
482
483static int adv7183_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_register *reg)
484{
485 adv7183_write(sd, reg->reg & 0xff, reg->val & 0xff);
486 return 0;
487}
488#endif
489
490static const struct v4l2_ctrl_ops adv7183_ctrl_ops = {
491 .s_ctrl = adv7183_s_ctrl,
492};
493
494static const struct v4l2_subdev_core_ops adv7183_core_ops = {
495 .log_status = adv7183_log_status,
496 .reset = adv7183_reset,
497#ifdef CONFIG_VIDEO_ADV_DEBUG
498 .g_register = adv7183_g_register,
499 .s_register = adv7183_s_register,
500#endif
501};
502
503static const struct v4l2_subdev_video_ops adv7183_video_ops = {
504 .g_std = adv7183_g_std,
505 .s_std = adv7183_s_std,
506 .s_routing = adv7183_s_routing,
507 .querystd = adv7183_querystd,
508 .g_input_status = adv7183_g_input_status,
509 .s_stream = adv7183_s_stream,
510};
511
512static const struct v4l2_subdev_pad_ops adv7183_pad_ops = {
513 .enum_mbus_code = adv7183_enum_mbus_code,
514 .get_fmt = adv7183_get_fmt,
515 .set_fmt = adv7183_set_fmt,
516};
517
518static const struct v4l2_subdev_ops adv7183_ops = {
519 .core = &adv7183_core_ops,
520 .video = &adv7183_video_ops,
521 .pad = &adv7183_pad_ops,
522};
523
524static int adv7183_probe(struct i2c_client *client,
525 const struct i2c_device_id *id)
526{
527 struct adv7183 *decoder;
528 struct v4l2_subdev *sd;
529 struct v4l2_ctrl_handler *hdl;
530 int ret;
531 struct v4l2_subdev_format fmt = {
532 .which = V4L2_SUBDEV_FORMAT_ACTIVE,
533 };
534 const unsigned *pin_array;
535
536
537 if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
538 return -EIO;
539
540 v4l_info(client, "chip found @ 0x%02x (%s)\n",
541 client->addr << 1, client->adapter->name);
542
543 pin_array = client->dev.platform_data;
544 if (pin_array == NULL)
545 return -EINVAL;
546
547 decoder = devm_kzalloc(&client->dev, sizeof(*decoder), GFP_KERNEL);
548 if (decoder == NULL)
549 return -ENOMEM;
550
551 decoder->reset_pin = pin_array[0];
552 decoder->oe_pin = pin_array[1];
553
554 if (devm_gpio_request_one(&client->dev, decoder->reset_pin,
555 GPIOF_OUT_INIT_LOW, "ADV7183 Reset")) {
556 v4l_err(client, "failed to request GPIO %d\n", decoder->reset_pin);
557 return -EBUSY;
558 }
559
560 if (devm_gpio_request_one(&client->dev, decoder->oe_pin,
561 GPIOF_OUT_INIT_HIGH,
562 "ADV7183 Output Enable")) {
563 v4l_err(client, "failed to request GPIO %d\n", decoder->oe_pin);
564 return -EBUSY;
565 }
566
567 sd = &decoder->sd;
568 v4l2_i2c_subdev_init(sd, client, &adv7183_ops);
569
570 hdl = &decoder->hdl;
571 v4l2_ctrl_handler_init(hdl, 4);
572 v4l2_ctrl_new_std(hdl, &adv7183_ctrl_ops,
573 V4L2_CID_BRIGHTNESS, -128, 127, 1, 0);
574 v4l2_ctrl_new_std(hdl, &adv7183_ctrl_ops,
575 V4L2_CID_CONTRAST, 0, 0xFF, 1, 0x80);
576 v4l2_ctrl_new_std(hdl, &adv7183_ctrl_ops,
577 V4L2_CID_SATURATION, 0, 0xFFFF, 1, 0x8080);
578 v4l2_ctrl_new_std(hdl, &adv7183_ctrl_ops,
579 V4L2_CID_HUE, 0, 0xFFFF, 1, 0x8080);
580
581 sd->ctrl_handler = hdl;
582 if (hdl->error) {
583 ret = hdl->error;
584
585 v4l2_ctrl_handler_free(hdl);
586 return ret;
587 }
588
589
590 decoder->std = V4L2_STD_PAL;
591 decoder->input = ADV7183_COMPOSITE4;
592 decoder->output = ADV7183_8BIT_OUT;
593
594
595
596 mdelay(10);
597 gpio_set_value(decoder->reset_pin, 1);
598
599 mdelay(5);
600
601 adv7183_writeregs(sd, adv7183_init_regs, ARRAY_SIZE(adv7183_init_regs));
602 adv7183_s_std(sd, decoder->std);
603 fmt.format.width = 720;
604 fmt.format.height = 576;
605 adv7183_set_fmt(sd, NULL, &fmt);
606
607
608 ret = v4l2_ctrl_handler_setup(hdl);
609 if (ret) {
610 v4l2_ctrl_handler_free(hdl);
611 return ret;
612 }
613
614 return 0;
615}
616
617static int adv7183_remove(struct i2c_client *client)
618{
619 struct v4l2_subdev *sd = i2c_get_clientdata(client);
620
621 v4l2_device_unregister_subdev(sd);
622 v4l2_ctrl_handler_free(sd->ctrl_handler);
623 return 0;
624}
625
626static const struct i2c_device_id adv7183_id[] = {
627 {"adv7183", 0},
628 {},
629};
630
631MODULE_DEVICE_TABLE(i2c, adv7183_id);
632
633static struct i2c_driver adv7183_driver = {
634 .driver = {
635 .name = "adv7183",
636 },
637 .probe = adv7183_probe,
638 .remove = adv7183_remove,
639 .id_table = adv7183_id,
640};
641
642module_i2c_driver(adv7183_driver);
643
644MODULE_DESCRIPTION("Analog Devices ADV7183 video decoder driver");
645MODULE_AUTHOR("Scott Jiang <Scott.Jiang.Linux@gmail.com>");
646MODULE_LICENSE("GPL v2");
647
