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19#include <linux/module.h>
20#include <linux/init.h>
21#include <linux/errno.h>
22#include <linux/kernel.h>
23#include <linux/interrupt.h>
24#include <linux/i2c.h>
25#include <linux/slab.h>
26#include <media/v4l2-ioctl.h>
27#include <linux/videodev2.h>
28#include <media/v4l2-device.h>
29#include <media/v4l2-ctrls.h>
30#include <media/v4l2-chip-ident.h>
31#include <linux/mutex.h>
32
33#define ADV7180_INPUT_CONTROL_REG 0x00
34#define ADV7180_INPUT_CONTROL_AD_PAL_BG_NTSC_J_SECAM 0x00
35#define ADV7180_INPUT_CONTROL_AD_PAL_BG_NTSC_J_SECAM_PED 0x10
36#define ADV7180_INPUT_CONTROL_AD_PAL_N_NTSC_J_SECAM 0x20
37#define ADV7180_INPUT_CONTROL_AD_PAL_N_NTSC_M_SECAM 0x30
38#define ADV7180_INPUT_CONTROL_NTSC_J 0x40
39#define ADV7180_INPUT_CONTROL_NTSC_M 0x50
40#define ADV7180_INPUT_CONTROL_PAL60 0x60
41#define ADV7180_INPUT_CONTROL_NTSC_443 0x70
42#define ADV7180_INPUT_CONTROL_PAL_BG 0x80
43#define ADV7180_INPUT_CONTROL_PAL_N 0x90
44#define ADV7180_INPUT_CONTROL_PAL_M 0xa0
45#define ADV7180_INPUT_CONTROL_PAL_M_PED 0xb0
46#define ADV7180_INPUT_CONTROL_PAL_COMB_N 0xc0
47#define ADV7180_INPUT_CONTROL_PAL_COMB_N_PED 0xd0
48#define ADV7180_INPUT_CONTROL_PAL_SECAM 0xe0
49#define ADV7180_INPUT_CONTROL_PAL_SECAM_PED 0xf0
50#define ADV7180_INPUT_CONTROL_INSEL_MASK 0x0f
51
52#define ADV7180_EXTENDED_OUTPUT_CONTROL_REG 0x04
53#define ADV7180_EXTENDED_OUTPUT_CONTROL_NTSCDIS 0xC5
54
55#define ADV7180_AUTODETECT_ENABLE_REG 0x07
56#define ADV7180_AUTODETECT_DEFAULT 0x7f
57
58#define ADV7180_CON_REG 0x08
59#define ADV7180_CON_MIN 0
60#define ADV7180_CON_DEF 128
61#define ADV7180_CON_MAX 255
62
63#define ADV7180_BRI_REG 0x0a
64#define ADV7180_BRI_MIN -128
65#define ADV7180_BRI_DEF 0
66#define ADV7180_BRI_MAX 127
67
68#define ADV7180_HUE_REG 0x0b
69#define ADV7180_HUE_MIN -127
70#define ADV7180_HUE_DEF 0
71#define ADV7180_HUE_MAX 128
72
73#define ADV7180_ADI_CTRL_REG 0x0e
74#define ADV7180_ADI_CTRL_IRQ_SPACE 0x20
75
76#define ADV7180_PWR_MAN_REG 0x0f
77#define ADV7180_PWR_MAN_ON 0x04
78#define ADV7180_PWR_MAN_OFF 0x24
79#define ADV7180_PWR_MAN_RES 0x80
80
81#define ADV7180_STATUS1_REG 0x10
82#define ADV7180_STATUS1_IN_LOCK 0x01
83#define ADV7180_STATUS1_AUTOD_MASK 0x70
84#define ADV7180_STATUS1_AUTOD_NTSM_M_J 0x00
85#define ADV7180_STATUS1_AUTOD_NTSC_4_43 0x10
86#define ADV7180_STATUS1_AUTOD_PAL_M 0x20
87#define ADV7180_STATUS1_AUTOD_PAL_60 0x30
88#define ADV7180_STATUS1_AUTOD_PAL_B_G 0x40
89#define ADV7180_STATUS1_AUTOD_SECAM 0x50
90#define ADV7180_STATUS1_AUTOD_PAL_COMB 0x60
91#define ADV7180_STATUS1_AUTOD_SECAM_525 0x70
92
93#define ADV7180_IDENT_REG 0x11
94#define ADV7180_ID_7180 0x18
95
96#define ADV7180_ICONF1_ADI 0x40
97#define ADV7180_ICONF1_ACTIVE_LOW 0x01
98#define ADV7180_ICONF1_PSYNC_ONLY 0x10
99#define ADV7180_ICONF1_ACTIVE_TO_CLR 0xC0
100
101#define ADV7180_SD_SAT_CB_REG 0xe3
102#define ADV7180_SD_SAT_CR_REG 0xe4
103#define ADV7180_SAT_MIN 0
104#define ADV7180_SAT_DEF 128
105#define ADV7180_SAT_MAX 255
106
107#define ADV7180_IRQ1_LOCK 0x01
108#define ADV7180_IRQ1_UNLOCK 0x02
109#define ADV7180_ISR1_ADI 0x42
110#define ADV7180_ICR1_ADI 0x43
111#define ADV7180_IMR1_ADI 0x44
112#define ADV7180_IMR2_ADI 0x48
113#define ADV7180_IRQ3_AD_CHANGE 0x08
114#define ADV7180_ISR3_ADI 0x4A
115#define ADV7180_ICR3_ADI 0x4B
116#define ADV7180_IMR3_ADI 0x4C
117#define ADV7180_IMR4_ADI 0x50
118
119#define ADV7180_NTSC_V_BIT_END_REG 0xE6
120#define ADV7180_NTSC_V_BIT_END_MANUAL_NVEND 0x4F
121
122struct adv7180_state {
123 struct v4l2_ctrl_handler ctrl_hdl;
124 struct v4l2_subdev sd;
125 struct work_struct work;
126 struct mutex mutex;
127 int irq;
128 v4l2_std_id curr_norm;
129 bool autodetect;
130 u8 input;
131};
132#define to_adv7180_sd(_ctrl) (&container_of(_ctrl->handler, \
133 struct adv7180_state, \
134 ctrl_hdl)->sd)
135
136static v4l2_std_id adv7180_std_to_v4l2(u8 status1)
137{
138
139 if (!(status1 & ADV7180_STATUS1_IN_LOCK))
140 return V4L2_STD_UNKNOWN;
141
142 switch (status1 & ADV7180_STATUS1_AUTOD_MASK) {
143 case ADV7180_STATUS1_AUTOD_NTSM_M_J:
144 return V4L2_STD_NTSC;
145 case ADV7180_STATUS1_AUTOD_NTSC_4_43:
146 return V4L2_STD_NTSC_443;
147 case ADV7180_STATUS1_AUTOD_PAL_M:
148 return V4L2_STD_PAL_M;
149 case ADV7180_STATUS1_AUTOD_PAL_60:
150 return V4L2_STD_PAL_60;
151 case ADV7180_STATUS1_AUTOD_PAL_B_G:
152 return V4L2_STD_PAL;
153 case ADV7180_STATUS1_AUTOD_SECAM:
154 return V4L2_STD_SECAM;
155 case ADV7180_STATUS1_AUTOD_PAL_COMB:
156 return V4L2_STD_PAL_Nc | V4L2_STD_PAL_N;
157 case ADV7180_STATUS1_AUTOD_SECAM_525:
158 return V4L2_STD_SECAM;
159 default:
160 return V4L2_STD_UNKNOWN;
161 }
162}
163
164static int v4l2_std_to_adv7180(v4l2_std_id std)
165{
166 if (std == V4L2_STD_PAL_60)
167 return ADV7180_INPUT_CONTROL_PAL60;
168 if (std == V4L2_STD_NTSC_443)
169 return ADV7180_INPUT_CONTROL_NTSC_443;
170 if (std == V4L2_STD_PAL_N)
171 return ADV7180_INPUT_CONTROL_PAL_N;
172 if (std == V4L2_STD_PAL_M)
173 return ADV7180_INPUT_CONTROL_PAL_M;
174 if (std == V4L2_STD_PAL_Nc)
175 return ADV7180_INPUT_CONTROL_PAL_COMB_N;
176
177 if (std & V4L2_STD_PAL)
178 return ADV7180_INPUT_CONTROL_PAL_BG;
179 if (std & V4L2_STD_NTSC)
180 return ADV7180_INPUT_CONTROL_NTSC_M;
181 if (std & V4L2_STD_SECAM)
182 return ADV7180_INPUT_CONTROL_PAL_SECAM;
183
184 return -EINVAL;
185}
186
187static u32 adv7180_status_to_v4l2(u8 status1)
188{
189 if (!(status1 & ADV7180_STATUS1_IN_LOCK))
190 return V4L2_IN_ST_NO_SIGNAL;
191
192 return 0;
193}
194
195static int __adv7180_status(struct i2c_client *client, u32 *status,
196 v4l2_std_id *std)
197{
198 int status1 = i2c_smbus_read_byte_data(client, ADV7180_STATUS1_REG);
199
200 if (status1 < 0)
201 return status1;
202
203 if (status)
204 *status = adv7180_status_to_v4l2(status1);
205 if (std)
206 *std = adv7180_std_to_v4l2(status1);
207
208 return 0;
209}
210
211static inline struct adv7180_state *to_state(struct v4l2_subdev *sd)
212{
213 return container_of(sd, struct adv7180_state, sd);
214}
215
216static int adv7180_querystd(struct v4l2_subdev *sd, v4l2_std_id *std)
217{
218 struct adv7180_state *state = to_state(sd);
219 int err = mutex_lock_interruptible(&state->mutex);
220 if (err)
221 return err;
222
223
224 if (!state->autodetect || state->irq > 0)
225 *std = state->curr_norm;
226 else
227 err = __adv7180_status(v4l2_get_subdevdata(sd), NULL, std);
228
229 mutex_unlock(&state->mutex);
230 return err;
231}
232
233static int adv7180_s_routing(struct v4l2_subdev *sd, u32 input,
234 u32 output, u32 config)
235{
236 struct adv7180_state *state = to_state(sd);
237 int ret = mutex_lock_interruptible(&state->mutex);
238 struct i2c_client *client = v4l2_get_subdevdata(sd);
239
240 if (ret)
241 return ret;
242
243
244
245
246 if ((input & ADV7180_INPUT_CONTROL_INSEL_MASK) != input)
247 goto out;
248
249 ret = i2c_smbus_read_byte_data(client, ADV7180_INPUT_CONTROL_REG);
250
251 if (ret < 0)
252 goto out;
253
254 ret &= ~ADV7180_INPUT_CONTROL_INSEL_MASK;
255 ret = i2c_smbus_write_byte_data(client,
256 ADV7180_INPUT_CONTROL_REG, ret | input);
257 state->input = input;
258out:
259 mutex_unlock(&state->mutex);
260 return ret;
261}
262
263static int adv7180_g_input_status(struct v4l2_subdev *sd, u32 *status)
264{
265 struct adv7180_state *state = to_state(sd);
266 int ret = mutex_lock_interruptible(&state->mutex);
267 if (ret)
268 return ret;
269
270 ret = __adv7180_status(v4l2_get_subdevdata(sd), status, NULL);
271 mutex_unlock(&state->mutex);
272 return ret;
273}
274
275static int adv7180_g_chip_ident(struct v4l2_subdev *sd,
276 struct v4l2_dbg_chip_ident *chip)
277{
278 struct i2c_client *client = v4l2_get_subdevdata(sd);
279
280 return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_ADV7180, 0);
281}
282
283static int adv7180_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
284{
285 struct adv7180_state *state = to_state(sd);
286 struct i2c_client *client = v4l2_get_subdevdata(sd);
287 int ret = mutex_lock_interruptible(&state->mutex);
288 if (ret)
289 return ret;
290
291
292 if (std == V4L2_STD_ALL) {
293 ret =
294 i2c_smbus_write_byte_data(client, ADV7180_INPUT_CONTROL_REG,
295 ADV7180_INPUT_CONTROL_AD_PAL_BG_NTSC_J_SECAM
296 | state->input);
297 if (ret < 0)
298 goto out;
299
300 __adv7180_status(client, NULL, &state->curr_norm);
301 state->autodetect = true;
302 } else {
303 ret = v4l2_std_to_adv7180(std);
304 if (ret < 0)
305 goto out;
306
307 ret = i2c_smbus_write_byte_data(client,
308 ADV7180_INPUT_CONTROL_REG,
309 ret | state->input);
310 if (ret < 0)
311 goto out;
312
313 state->curr_norm = std;
314 state->autodetect = false;
315 }
316 ret = 0;
317out:
318 mutex_unlock(&state->mutex);
319 return ret;
320}
321
322static int adv7180_s_ctrl(struct v4l2_ctrl *ctrl)
323{
324 struct v4l2_subdev *sd = to_adv7180_sd(ctrl);
325 struct adv7180_state *state = to_state(sd);
326 struct i2c_client *client = v4l2_get_subdevdata(sd);
327 int ret = mutex_lock_interruptible(&state->mutex);
328 int val;
329
330 if (ret)
331 return ret;
332 val = ctrl->val;
333 switch (ctrl->id) {
334 case V4L2_CID_BRIGHTNESS:
335 ret = i2c_smbus_write_byte_data(client, ADV7180_BRI_REG, val);
336 break;
337 case V4L2_CID_HUE:
338
339 ret = i2c_smbus_write_byte_data(client, ADV7180_HUE_REG, -val);
340 break;
341 case V4L2_CID_CONTRAST:
342 ret = i2c_smbus_write_byte_data(client, ADV7180_CON_REG, val);
343 break;
344 case V4L2_CID_SATURATION:
345
346
347
348
349 ret = i2c_smbus_write_byte_data(client, ADV7180_SD_SAT_CB_REG,
350 val);
351 if (ret < 0)
352 break;
353 ret = i2c_smbus_write_byte_data(client, ADV7180_SD_SAT_CR_REG,
354 val);
355 break;
356 default:
357 ret = -EINVAL;
358 }
359
360 mutex_unlock(&state->mutex);
361 return ret;
362}
363
364static const struct v4l2_ctrl_ops adv7180_ctrl_ops = {
365 .s_ctrl = adv7180_s_ctrl,
366};
367
368static int adv7180_init_controls(struct adv7180_state *state)
369{
370 v4l2_ctrl_handler_init(&state->ctrl_hdl, 4);
371
372 v4l2_ctrl_new_std(&state->ctrl_hdl, &adv7180_ctrl_ops,
373 V4L2_CID_BRIGHTNESS, ADV7180_BRI_MIN,
374 ADV7180_BRI_MAX, 1, ADV7180_BRI_DEF);
375 v4l2_ctrl_new_std(&state->ctrl_hdl, &adv7180_ctrl_ops,
376 V4L2_CID_CONTRAST, ADV7180_CON_MIN,
377 ADV7180_CON_MAX, 1, ADV7180_CON_DEF);
378 v4l2_ctrl_new_std(&state->ctrl_hdl, &adv7180_ctrl_ops,
379 V4L2_CID_SATURATION, ADV7180_SAT_MIN,
380 ADV7180_SAT_MAX, 1, ADV7180_SAT_DEF);
381 v4l2_ctrl_new_std(&state->ctrl_hdl, &adv7180_ctrl_ops,
382 V4L2_CID_HUE, ADV7180_HUE_MIN,
383 ADV7180_HUE_MAX, 1, ADV7180_HUE_DEF);
384 state->sd.ctrl_handler = &state->ctrl_hdl;
385 if (state->ctrl_hdl.error) {
386 int err = state->ctrl_hdl.error;
387
388 v4l2_ctrl_handler_free(&state->ctrl_hdl);
389 return err;
390 }
391 v4l2_ctrl_handler_setup(&state->ctrl_hdl);
392
393 return 0;
394}
395static void adv7180_exit_controls(struct adv7180_state *state)
396{
397 v4l2_ctrl_handler_free(&state->ctrl_hdl);
398}
399
400static const struct v4l2_subdev_video_ops adv7180_video_ops = {
401 .querystd = adv7180_querystd,
402 .g_input_status = adv7180_g_input_status,
403 .s_routing = adv7180_s_routing,
404};
405
406static const struct v4l2_subdev_core_ops adv7180_core_ops = {
407 .g_chip_ident = adv7180_g_chip_ident,
408 .s_std = adv7180_s_std,
409};
410
411static const struct v4l2_subdev_ops adv7180_ops = {
412 .core = &adv7180_core_ops,
413 .video = &adv7180_video_ops,
414};
415
416static void adv7180_work(struct work_struct *work)
417{
418 struct adv7180_state *state = container_of(work, struct adv7180_state,
419 work);
420 struct i2c_client *client = v4l2_get_subdevdata(&state->sd);
421 u8 isr3;
422
423 mutex_lock(&state->mutex);
424 i2c_smbus_write_byte_data(client, ADV7180_ADI_CTRL_REG,
425 ADV7180_ADI_CTRL_IRQ_SPACE);
426 isr3 = i2c_smbus_read_byte_data(client, ADV7180_ISR3_ADI);
427
428 i2c_smbus_write_byte_data(client, ADV7180_ICR3_ADI, isr3);
429 i2c_smbus_write_byte_data(client, ADV7180_ADI_CTRL_REG, 0);
430
431 if (isr3 & ADV7180_IRQ3_AD_CHANGE && state->autodetect)
432 __adv7180_status(client, NULL, &state->curr_norm);
433 mutex_unlock(&state->mutex);
434
435 enable_irq(state->irq);
436}
437
438static irqreturn_t adv7180_irq(int irq, void *devid)
439{
440 struct adv7180_state *state = devid;
441
442 schedule_work(&state->work);
443
444 disable_irq_nosync(state->irq);
445
446 return IRQ_HANDLED;
447}
448
449static int init_device(struct i2c_client *client, struct adv7180_state *state)
450{
451 int ret;
452
453
454
455 if (state->autodetect) {
456 ret =
457 i2c_smbus_write_byte_data(client, ADV7180_INPUT_CONTROL_REG,
458 ADV7180_INPUT_CONTROL_AD_PAL_BG_NTSC_J_SECAM
459 | state->input);
460 if (ret < 0)
461 return ret;
462
463 ret =
464 i2c_smbus_write_byte_data(client,
465 ADV7180_AUTODETECT_ENABLE_REG,
466 ADV7180_AUTODETECT_DEFAULT);
467 if (ret < 0)
468 return ret;
469 } else {
470 ret = v4l2_std_to_adv7180(state->curr_norm);
471 if (ret < 0)
472 return ret;
473
474 ret =
475 i2c_smbus_write_byte_data(client, ADV7180_INPUT_CONTROL_REG,
476 ret | state->input);
477 if (ret < 0)
478 return ret;
479
480 }
481
482 ret = i2c_smbus_write_byte_data(client,
483 ADV7180_EXTENDED_OUTPUT_CONTROL_REG,
484 ADV7180_EXTENDED_OUTPUT_CONTROL_NTSCDIS);
485 if (ret < 0)
486 return ret;
487
488
489 ret = i2c_smbus_write_byte_data(client,
490 ADV7180_NTSC_V_BIT_END_REG,
491 ADV7180_NTSC_V_BIT_END_MANUAL_NVEND);
492 if (ret < 0)
493 return ret;
494
495
496 __adv7180_status(client, NULL, &state->curr_norm);
497
498
499 if (state->irq > 0) {
500 ret = request_irq(state->irq, adv7180_irq, 0, KBUILD_MODNAME,
501 state);
502 if (ret)
503 return ret;
504
505 ret = i2c_smbus_write_byte_data(client, ADV7180_ADI_CTRL_REG,
506 ADV7180_ADI_CTRL_IRQ_SPACE);
507 if (ret < 0)
508 return ret;
509
510
511 ret = i2c_smbus_write_byte_data(client, ADV7180_ICONF1_ADI,
512 ADV7180_ICONF1_ACTIVE_LOW |
513 ADV7180_ICONF1_PSYNC_ONLY);
514 if (ret < 0)
515 return ret;
516
517 ret = i2c_smbus_write_byte_data(client, ADV7180_IMR1_ADI, 0);
518 if (ret < 0)
519 return ret;
520
521 ret = i2c_smbus_write_byte_data(client, ADV7180_IMR2_ADI, 0);
522 if (ret < 0)
523 return ret;
524
525
526 ret = i2c_smbus_write_byte_data(client, ADV7180_IMR3_ADI,
527 ADV7180_IRQ3_AD_CHANGE);
528 if (ret < 0)
529 return ret;
530
531 ret = i2c_smbus_write_byte_data(client, ADV7180_IMR4_ADI, 0);
532 if (ret < 0)
533 return ret;
534
535 ret = i2c_smbus_write_byte_data(client, ADV7180_ADI_CTRL_REG,
536 0);
537 if (ret < 0)
538 return ret;
539 }
540
541 return 0;
542}
543
544static int adv7180_probe(struct i2c_client *client,
545 const struct i2c_device_id *id)
546{
547 struct adv7180_state *state;
548 struct v4l2_subdev *sd;
549 int ret;
550
551
552 if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
553 return -EIO;
554
555 v4l_info(client, "chip found @ 0x%02x (%s)\n",
556 client->addr, client->adapter->name);
557
558 state = kzalloc(sizeof(struct adv7180_state), GFP_KERNEL);
559 if (state == NULL) {
560 ret = -ENOMEM;
561 goto err;
562 }
563
564 state->irq = client->irq;
565 INIT_WORK(&state->work, adv7180_work);
566 mutex_init(&state->mutex);
567 state->autodetect = true;
568 state->input = 0;
569 sd = &state->sd;
570 v4l2_i2c_subdev_init(sd, client, &adv7180_ops);
571
572 ret = adv7180_init_controls(state);
573 if (ret)
574 goto err_unreg_subdev;
575 ret = init_device(client, state);
576 if (ret)
577 goto err_free_ctrl;
578 return 0;
579
580err_free_ctrl:
581 adv7180_exit_controls(state);
582err_unreg_subdev:
583 mutex_destroy(&state->mutex);
584 v4l2_device_unregister_subdev(sd);
585 kfree(state);
586err:
587 printk(KERN_ERR KBUILD_MODNAME ": Failed to probe: %d\n", ret);
588 return ret;
589}
590
591static int adv7180_remove(struct i2c_client *client)
592{
593 struct v4l2_subdev *sd = i2c_get_clientdata(client);
594 struct adv7180_state *state = to_state(sd);
595
596 if (state->irq > 0) {
597 free_irq(client->irq, state);
598 if (cancel_work_sync(&state->work)) {
599
600
601
602
603
604 enable_irq(state->irq);
605 }
606 }
607
608 mutex_destroy(&state->mutex);
609 v4l2_device_unregister_subdev(sd);
610 kfree(to_state(sd));
611 return 0;
612}
613
614static const struct i2c_device_id adv7180_id[] = {
615 {KBUILD_MODNAME, 0},
616 {},
617};
618
619#ifdef CONFIG_PM
620static int adv7180_suspend(struct i2c_client *client, pm_message_t state)
621{
622 int ret;
623
624 ret = i2c_smbus_write_byte_data(client, ADV7180_PWR_MAN_REG,
625 ADV7180_PWR_MAN_OFF);
626 if (ret < 0)
627 return ret;
628 return 0;
629}
630
631static int adv7180_resume(struct i2c_client *client)
632{
633 struct v4l2_subdev *sd = i2c_get_clientdata(client);
634 struct adv7180_state *state = to_state(sd);
635 int ret;
636
637 ret = i2c_smbus_write_byte_data(client, ADV7180_PWR_MAN_REG,
638 ADV7180_PWR_MAN_ON);
639 if (ret < 0)
640 return ret;
641 ret = init_device(client, state);
642 if (ret < 0)
643 return ret;
644 return 0;
645}
646#endif
647
648MODULE_DEVICE_TABLE(i2c, adv7180_id);
649
650static struct i2c_driver adv7180_driver = {
651 .driver = {
652 .owner = THIS_MODULE,
653 .name = KBUILD_MODNAME,
654 },
655 .probe = adv7180_probe,
656 .remove = adv7180_remove,
657#ifdef CONFIG_PM
658 .suspend = adv7180_suspend,
659 .resume = adv7180_resume,
660#endif
661 .id_table = adv7180_id,
662};
663
664module_i2c_driver(adv7180_driver);
665
666MODULE_DESCRIPTION("Analog Devices ADV7180 video decoder driver");
667MODULE_AUTHOR("Mocean Laboratories");
668MODULE_LICENSE("GPL v2");
669
