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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 switch (status1 & ADV7180_STATUS1_AUTOD_MASK) {
139 case ADV7180_STATUS1_AUTOD_NTSM_M_J:
140 return V4L2_STD_NTSC;
141 case ADV7180_STATUS1_AUTOD_NTSC_4_43:
142 return V4L2_STD_NTSC_443;
143 case ADV7180_STATUS1_AUTOD_PAL_M:
144 return V4L2_STD_PAL_M;
145 case ADV7180_STATUS1_AUTOD_PAL_60:
146 return V4L2_STD_PAL_60;
147 case ADV7180_STATUS1_AUTOD_PAL_B_G:
148 return V4L2_STD_PAL;
149 case ADV7180_STATUS1_AUTOD_SECAM:
150 return V4L2_STD_SECAM;
151 case ADV7180_STATUS1_AUTOD_PAL_COMB:
152 return V4L2_STD_PAL_Nc | V4L2_STD_PAL_N;
153 case ADV7180_STATUS1_AUTOD_SECAM_525:
154 return V4L2_STD_SECAM;
155 default:
156 return V4L2_STD_UNKNOWN;
157 }
158}
159
160static int v4l2_std_to_adv7180(v4l2_std_id std)
161{
162 if (std == V4L2_STD_PAL_60)
163 return ADV7180_INPUT_CONTROL_PAL60;
164 if (std == V4L2_STD_NTSC_443)
165 return ADV7180_INPUT_CONTROL_NTSC_443;
166 if (std == V4L2_STD_PAL_N)
167 return ADV7180_INPUT_CONTROL_PAL_N;
168 if (std == V4L2_STD_PAL_M)
169 return ADV7180_INPUT_CONTROL_PAL_M;
170 if (std == V4L2_STD_PAL_Nc)
171 return ADV7180_INPUT_CONTROL_PAL_COMB_N;
172
173 if (std & V4L2_STD_PAL)
174 return ADV7180_INPUT_CONTROL_PAL_BG;
175 if (std & V4L2_STD_NTSC)
176 return ADV7180_INPUT_CONTROL_NTSC_M;
177 if (std & V4L2_STD_SECAM)
178 return ADV7180_INPUT_CONTROL_PAL_SECAM;
179
180 return -EINVAL;
181}
182
183static u32 adv7180_status_to_v4l2(u8 status1)
184{
185 if (!(status1 & ADV7180_STATUS1_IN_LOCK))
186 return V4L2_IN_ST_NO_SIGNAL;
187
188 return 0;
189}
190
191static int __adv7180_status(struct i2c_client *client, u32 *status,
192 v4l2_std_id *std)
193{
194 int status1 = i2c_smbus_read_byte_data(client, ADV7180_STATUS1_REG);
195
196 if (status1 < 0)
197 return status1;
198
199 if (status)
200 *status = adv7180_status_to_v4l2(status1);
201 if (std)
202 *std = adv7180_std_to_v4l2(status1);
203
204 return 0;
205}
206
207static inline struct adv7180_state *to_state(struct v4l2_subdev *sd)
208{
209 return container_of(sd, struct adv7180_state, sd);
210}
211
212static int adv7180_querystd(struct v4l2_subdev *sd, v4l2_std_id *std)
213{
214 struct adv7180_state *state = to_state(sd);
215 int err = mutex_lock_interruptible(&state->mutex);
216 if (err)
217 return err;
218
219
220 if (!state->autodetect || state->irq > 0)
221 *std = state->curr_norm;
222 else
223 err = __adv7180_status(v4l2_get_subdevdata(sd), NULL, std);
224
225 mutex_unlock(&state->mutex);
226 return err;
227}
228
229static int adv7180_s_routing(struct v4l2_subdev *sd, u32 input,
230 u32 output, u32 config)
231{
232 struct adv7180_state *state = to_state(sd);
233 int ret = mutex_lock_interruptible(&state->mutex);
234 struct i2c_client *client = v4l2_get_subdevdata(sd);
235
236 if (ret)
237 return ret;
238
239
240
241
242 if ((input & ADV7180_INPUT_CONTROL_INSEL_MASK) != input)
243 goto out;
244
245 ret = i2c_smbus_read_byte_data(client, ADV7180_INPUT_CONTROL_REG);
246
247 if (ret < 0)
248 goto out;
249
250 ret &= ~ADV7180_INPUT_CONTROL_INSEL_MASK;
251 ret = i2c_smbus_write_byte_data(client,
252 ADV7180_INPUT_CONTROL_REG, ret | input);
253 state->input = input;
254out:
255 mutex_unlock(&state->mutex);
256 return ret;
257}
258
259static int adv7180_g_input_status(struct v4l2_subdev *sd, u32 *status)
260{
261 struct adv7180_state *state = to_state(sd);
262 int ret = mutex_lock_interruptible(&state->mutex);
263 if (ret)
264 return ret;
265
266 ret = __adv7180_status(v4l2_get_subdevdata(sd), status, NULL);
267 mutex_unlock(&state->mutex);
268 return ret;
269}
270
271static int adv7180_g_chip_ident(struct v4l2_subdev *sd,
272 struct v4l2_dbg_chip_ident *chip)
273{
274 struct i2c_client *client = v4l2_get_subdevdata(sd);
275
276 return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_ADV7180, 0);
277}
278
279static int adv7180_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
280{
281 struct adv7180_state *state = to_state(sd);
282 struct i2c_client *client = v4l2_get_subdevdata(sd);
283 int ret = mutex_lock_interruptible(&state->mutex);
284 if (ret)
285 return ret;
286
287
288 if (std == V4L2_STD_ALL) {
289 ret =
290 i2c_smbus_write_byte_data(client, ADV7180_INPUT_CONTROL_REG,
291 ADV7180_INPUT_CONTROL_AD_PAL_BG_NTSC_J_SECAM
292 | state->input);
293 if (ret < 0)
294 goto out;
295
296 __adv7180_status(client, NULL, &state->curr_norm);
297 state->autodetect = true;
298 } else {
299 ret = v4l2_std_to_adv7180(std);
300 if (ret < 0)
301 goto out;
302
303 ret = i2c_smbus_write_byte_data(client,
304 ADV7180_INPUT_CONTROL_REG,
305 ret | state->input);
306 if (ret < 0)
307 goto out;
308
309 state->curr_norm = std;
310 state->autodetect = false;
311 }
312 ret = 0;
313out:
314 mutex_unlock(&state->mutex);
315 return ret;
316}
317
318static int adv7180_s_ctrl(struct v4l2_ctrl *ctrl)
319{
320 struct v4l2_subdev *sd = to_adv7180_sd(ctrl);
321 struct adv7180_state *state = to_state(sd);
322 struct i2c_client *client = v4l2_get_subdevdata(sd);
323 int ret = mutex_lock_interruptible(&state->mutex);
324 int val;
325
326 if (ret)
327 return ret;
328 val = ctrl->val;
329 switch (ctrl->id) {
330 case V4L2_CID_BRIGHTNESS:
331 ret = i2c_smbus_write_byte_data(client, ADV7180_BRI_REG, val);
332 break;
333 case V4L2_CID_HUE:
334
335 ret = i2c_smbus_write_byte_data(client, ADV7180_HUE_REG, -val);
336 break;
337 case V4L2_CID_CONTRAST:
338 ret = i2c_smbus_write_byte_data(client, ADV7180_CON_REG, val);
339 break;
340 case V4L2_CID_SATURATION:
341
342
343
344
345 ret = i2c_smbus_write_byte_data(client, ADV7180_SD_SAT_CB_REG,
346 val);
347 if (ret < 0)
348 break;
349 ret = i2c_smbus_write_byte_data(client, ADV7180_SD_SAT_CR_REG,
350 val);
351 break;
352 default:
353 ret = -EINVAL;
354 }
355
356 mutex_unlock(&state->mutex);
357 return ret;
358}
359
360static const struct v4l2_ctrl_ops adv7180_ctrl_ops = {
361 .s_ctrl = adv7180_s_ctrl,
362};
363
364static int adv7180_init_controls(struct adv7180_state *state)
365{
366 v4l2_ctrl_handler_init(&state->ctrl_hdl, 4);
367
368 v4l2_ctrl_new_std(&state->ctrl_hdl, &adv7180_ctrl_ops,
369 V4L2_CID_BRIGHTNESS, ADV7180_BRI_MIN,
370 ADV7180_BRI_MAX, 1, ADV7180_BRI_DEF);
371 v4l2_ctrl_new_std(&state->ctrl_hdl, &adv7180_ctrl_ops,
372 V4L2_CID_CONTRAST, ADV7180_CON_MIN,
373 ADV7180_CON_MAX, 1, ADV7180_CON_DEF);
374 v4l2_ctrl_new_std(&state->ctrl_hdl, &adv7180_ctrl_ops,
375 V4L2_CID_SATURATION, ADV7180_SAT_MIN,
376 ADV7180_SAT_MAX, 1, ADV7180_SAT_DEF);
377 v4l2_ctrl_new_std(&state->ctrl_hdl, &adv7180_ctrl_ops,
378 V4L2_CID_HUE, ADV7180_HUE_MIN,
379 ADV7180_HUE_MAX, 1, ADV7180_HUE_DEF);
380 state->sd.ctrl_handler = &state->ctrl_hdl;
381 if (state->ctrl_hdl.error) {
382 int err = state->ctrl_hdl.error;
383
384 v4l2_ctrl_handler_free(&state->ctrl_hdl);
385 return err;
386 }
387 v4l2_ctrl_handler_setup(&state->ctrl_hdl);
388
389 return 0;
390}
391static void adv7180_exit_controls(struct adv7180_state *state)
392{
393 v4l2_ctrl_handler_free(&state->ctrl_hdl);
394}
395
396static const struct v4l2_subdev_video_ops adv7180_video_ops = {
397 .querystd = adv7180_querystd,
398 .g_input_status = adv7180_g_input_status,
399 .s_routing = adv7180_s_routing,
400};
401
402static const struct v4l2_subdev_core_ops adv7180_core_ops = {
403 .g_chip_ident = adv7180_g_chip_ident,
404 .s_std = adv7180_s_std,
405 .queryctrl = v4l2_subdev_queryctrl,
406 .g_ctrl = v4l2_subdev_g_ctrl,
407 .s_ctrl = v4l2_subdev_s_ctrl,
408};
409
410static const struct v4l2_subdev_ops adv7180_ops = {
411 .core = &adv7180_core_ops,
412 .video = &adv7180_video_ops,
413};
414
415static void adv7180_work(struct work_struct *work)
416{
417 struct adv7180_state *state = container_of(work, struct adv7180_state,
418 work);
419 struct i2c_client *client = v4l2_get_subdevdata(&state->sd);
420 u8 isr3;
421
422 mutex_lock(&state->mutex);
423 i2c_smbus_write_byte_data(client, ADV7180_ADI_CTRL_REG,
424 ADV7180_ADI_CTRL_IRQ_SPACE);
425 isr3 = i2c_smbus_read_byte_data(client, ADV7180_ISR3_ADI);
426
427 i2c_smbus_write_byte_data(client, ADV7180_ICR3_ADI, isr3);
428 i2c_smbus_write_byte_data(client, ADV7180_ADI_CTRL_REG, 0);
429
430 if (isr3 & ADV7180_IRQ3_AD_CHANGE && state->autodetect)
431 __adv7180_status(client, NULL, &state->curr_norm);
432 mutex_unlock(&state->mutex);
433
434 enable_irq(state->irq);
435}
436
437static irqreturn_t adv7180_irq(int irq, void *devid)
438{
439 struct adv7180_state *state = devid;
440
441 schedule_work(&state->work);
442
443 disable_irq_nosync(state->irq);
444
445 return IRQ_HANDLED;
446}
447
448static int init_device(struct i2c_client *client, struct adv7180_state *state)
449{
450 int ret;
451
452
453
454 if (state->autodetect) {
455 ret =
456 i2c_smbus_write_byte_data(client, ADV7180_INPUT_CONTROL_REG,
457 ADV7180_INPUT_CONTROL_AD_PAL_BG_NTSC_J_SECAM
458 | state->input);
459 if (ret < 0)
460 return ret;
461
462 ret =
463 i2c_smbus_write_byte_data(client,
464 ADV7180_AUTODETECT_ENABLE_REG,
465 ADV7180_AUTODETECT_DEFAULT);
466 if (ret < 0)
467 return ret;
468 } else {
469 ret = v4l2_std_to_adv7180(state->curr_norm);
470 if (ret < 0)
471 return ret;
472
473 ret =
474 i2c_smbus_write_byte_data(client, ADV7180_INPUT_CONTROL_REG,
475 ret | state->input);
476 if (ret < 0)
477 return ret;
478
479 }
480
481 ret = i2c_smbus_write_byte_data(client,
482 ADV7180_EXTENDED_OUTPUT_CONTROL_REG,
483 ADV7180_EXTENDED_OUTPUT_CONTROL_NTSCDIS);
484 if (ret < 0)
485 return ret;
486
487
488 ret = i2c_smbus_write_byte_data(client,
489 ADV7180_NTSC_V_BIT_END_REG,
490 ADV7180_NTSC_V_BIT_END_MANUAL_NVEND);
491 if (ret < 0)
492 return ret;
493
494
495 __adv7180_status(client, NULL, &state->curr_norm);
496
497
498 if (state->irq > 0) {
499 ret = request_irq(state->irq, adv7180_irq, 0, KBUILD_MODNAME,
500 state);
501 if (ret)
502 return ret;
503
504 ret = i2c_smbus_write_byte_data(client, ADV7180_ADI_CTRL_REG,
505 ADV7180_ADI_CTRL_IRQ_SPACE);
506 if (ret < 0)
507 return ret;
508
509
510 ret = i2c_smbus_write_byte_data(client, ADV7180_ICONF1_ADI,
511 ADV7180_ICONF1_ACTIVE_LOW |
512 ADV7180_ICONF1_PSYNC_ONLY);
513 if (ret < 0)
514 return ret;
515
516 ret = i2c_smbus_write_byte_data(client, ADV7180_IMR1_ADI, 0);
517 if (ret < 0)
518 return ret;
519
520 ret = i2c_smbus_write_byte_data(client, ADV7180_IMR2_ADI, 0);
521 if (ret < 0)
522 return ret;
523
524
525 ret = i2c_smbus_write_byte_data(client, ADV7180_IMR3_ADI,
526 ADV7180_IRQ3_AD_CHANGE);
527 if (ret < 0)
528 return ret;
529
530 ret = i2c_smbus_write_byte_data(client, ADV7180_IMR4_ADI, 0);
531 if (ret < 0)
532 return ret;
533
534 ret = i2c_smbus_write_byte_data(client, ADV7180_ADI_CTRL_REG,
535 0);
536 if (ret < 0)
537 return ret;
538 }
539
540 return 0;
541}
542
543static __devinit int adv7180_probe(struct i2c_client *client,
544 const struct i2c_device_id *id)
545{
546 struct adv7180_state *state;
547 struct v4l2_subdev *sd;
548 int ret;
549
550
551 if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
552 return -EIO;
553
554 v4l_info(client, "chip found @ 0x%02x (%s)\n",
555 client->addr, client->adapter->name);
556
557 state = kzalloc(sizeof(struct adv7180_state), GFP_KERNEL);
558 if (state == NULL) {
559 ret = -ENOMEM;
560 goto err;
561 }
562
563 state->irq = client->irq;
564 INIT_WORK(&state->work, adv7180_work);
565 mutex_init(&state->mutex);
566 state->autodetect = true;
567 state->input = 0;
568 sd = &state->sd;
569 v4l2_i2c_subdev_init(sd, client, &adv7180_ops);
570
571 ret = adv7180_init_controls(state);
572 if (ret)
573 goto err_unreg_subdev;
574 ret = init_device(client, state);
575 if (ret)
576 goto err_free_ctrl;
577 return 0;
578
579err_free_ctrl:
580 adv7180_exit_controls(state);
581err_unreg_subdev:
582 mutex_destroy(&state->mutex);
583 v4l2_device_unregister_subdev(sd);
584 kfree(state);
585err:
586 printk(KERN_ERR KBUILD_MODNAME ": Failed to probe: %d\n", ret);
587 return ret;
588}
589
590static __devexit int adv7180_remove(struct i2c_client *client)
591{
592 struct v4l2_subdev *sd = i2c_get_clientdata(client);
593 struct adv7180_state *state = to_state(sd);
594
595 if (state->irq > 0) {
596 free_irq(client->irq, state);
597 if (cancel_work_sync(&state->work)) {
598
599
600
601
602
603 enable_irq(state->irq);
604 }
605 }
606
607 mutex_destroy(&state->mutex);
608 v4l2_device_unregister_subdev(sd);
609 kfree(to_state(sd));
610 return 0;
611}
612
613static const struct i2c_device_id adv7180_id[] = {
614 {KBUILD_MODNAME, 0},
615 {},
616};
617
618#ifdef CONFIG_PM
619static int adv7180_suspend(struct i2c_client *client, pm_message_t state)
620{
621 int ret;
622
623 ret = i2c_smbus_write_byte_data(client, ADV7180_PWR_MAN_REG,
624 ADV7180_PWR_MAN_OFF);
625 if (ret < 0)
626 return ret;
627 return 0;
628}
629
630static int adv7180_resume(struct i2c_client *client)
631{
632 struct v4l2_subdev *sd = i2c_get_clientdata(client);
633 struct adv7180_state *state = to_state(sd);
634 int ret;
635
636 ret = i2c_smbus_write_byte_data(client, ADV7180_PWR_MAN_REG,
637 ADV7180_PWR_MAN_ON);
638 if (ret < 0)
639 return ret;
640 ret = init_device(client, state);
641 if (ret < 0)
642 return ret;
643 return 0;
644}
645#endif
646
647MODULE_DEVICE_TABLE(i2c, adv7180_id);
648
649static struct i2c_driver adv7180_driver = {
650 .driver = {
651 .owner = THIS_MODULE,
652 .name = KBUILD_MODNAME,
653 },
654 .probe = adv7180_probe,
655 .remove = __devexit_p(adv7180_remove),
656#ifdef CONFIG_PM
657 .suspend = adv7180_suspend,
658 .resume = adv7180_resume,
659#endif
660 .id_table = adv7180_id,
661};
662
663module_i2c_driver(adv7180_driver);
664
665MODULE_DESCRIPTION("Analog Devices ADV7180 video decoder driver");
666MODULE_AUTHOR("Mocean Laboratories");
667MODULE_LICENSE("GPL v2");
668
