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PM / sleep: Asynchronous threads for suspend_noirq
[linux/fpc-iii.git] / drivers / media / i2c / saa6752hs.c
blob8272c0b9c5bf6e103294053316ed16fb0c87c317
1 /*
2 saa6752hs - i2c-driver for the saa6752hs by Philips
3
4 Copyright (C) 2004 Andrew de Quincey
5
6 AC-3 support:
7
8 Copyright (C) 2008 Hans Verkuil <hverkuil@xs4all.nl>
9
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License vs published by
12 the Free Software Foundation; either version 2 of the License, or
13 (at your option) any later version.
14
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 675 Mvss Ave, Cambridge, MA 02139, USA.
23 */
24
25 #include <linux/module.h>
26 #include <linux/kernel.h>
27 #include <linux/string.h>
28 #include <linux/timer.h>
29 #include <linux/delay.h>
30 #include <linux/errno.h>
31 #include <linux/slab.h>
32 #include <linux/poll.h>
33 #include <linux/i2c.h>
34 #include <linux/types.h>
35 #include <linux/videodev2.h>
36 #include <linux/init.h>
37 #include <linux/crc32.h>
38 #include <media/v4l2-device.h>
39 #include <media/v4l2-ctrls.h>
40 #include <media/v4l2-common.h>
41
42 #define MPEG_VIDEO_TARGET_BITRATE_MAX 27000
43 #define MPEG_VIDEO_MAX_BITRATE_MAX 27000
44 #define MPEG_TOTAL_TARGET_BITRATE_MAX 27000
45 #define MPEG_PID_MAX ((1 << 14) - 1)
46
47
48 MODULE_DESCRIPTION("device driver for saa6752hs MPEG2 encoder");
49 MODULE_AUTHOR("Andrew de Quincey");
50 MODULE_LICENSE("GPL");
51
52 enum saa6752hs_videoformat {
53 SAA6752HS_VF_D1 = 0, /* standard D1 video format: 720x576 */
54 SAA6752HS_VF_2_3_D1 = 1,/* 2/3D1 video format: 480x576 */
55 SAA6752HS_VF_1_2_D1 = 2,/* 1/2D1 video format: 352x576 */
56 SAA6752HS_VF_SIF = 3, /* SIF video format: 352x288 */
57 SAA6752HS_VF_UNKNOWN,
58 };
59
60 struct saa6752hs_mpeg_params {
61 /* transport streams */
62 __u16 ts_pid_pmt;
63 __u16 ts_pid_audio;
64 __u16 ts_pid_video;
65 __u16 ts_pid_pcr;
66
67 /* audio */
68 enum v4l2_mpeg_audio_encoding au_encoding;
69 enum v4l2_mpeg_audio_l2_bitrate au_l2_bitrate;
70 enum v4l2_mpeg_audio_ac3_bitrate au_ac3_bitrate;
71
72 /* video */
73 enum v4l2_mpeg_video_aspect vi_aspect;
74 enum v4l2_mpeg_video_bitrate_mode vi_bitrate_mode;
75 __u32 vi_bitrate;
76 __u32 vi_bitrate_peak;
77 };
78
79 static const struct v4l2_format v4l2_format_table[] =
80 {
81 [SAA6752HS_VF_D1] =
82 { .fmt = { .pix = { .width = 720, .height = 576 }}},
83 [SAA6752HS_VF_2_3_D1] =
84 { .fmt = { .pix = { .width = 480, .height = 576 }}},
85 [SAA6752HS_VF_1_2_D1] =
86 { .fmt = { .pix = { .width = 352, .height = 576 }}},
87 [SAA6752HS_VF_SIF] =
88 { .fmt = { .pix = { .width = 352, .height = 288 }}},
89 [SAA6752HS_VF_UNKNOWN] =
90 { .fmt = { .pix = { .width = 0, .height = 0}}},
91 };
92
93 struct saa6752hs_state {
94 struct v4l2_subdev sd;
95 struct v4l2_ctrl_handler hdl;
96 struct { /* video bitrate mode control cluster */
97 struct v4l2_ctrl *video_bitrate_mode;
98 struct v4l2_ctrl *video_bitrate;
99 struct v4l2_ctrl *video_bitrate_peak;
100 };
101 u32 revision;
102 int has_ac3;
103 struct saa6752hs_mpeg_params params;
104 enum saa6752hs_videoformat video_format;
105 v4l2_std_id standard;
106 };
107
108 enum saa6752hs_command {
109 SAA6752HS_COMMAND_RESET = 0,
110 SAA6752HS_COMMAND_STOP = 1,
111 SAA6752HS_COMMAND_START = 2,
112 SAA6752HS_COMMAND_PAUSE = 3,
113 SAA6752HS_COMMAND_RECONFIGURE = 4,
114 SAA6752HS_COMMAND_SLEEP = 5,
115 SAA6752HS_COMMAND_RECONFIGURE_FORCE = 6,
116
117 SAA6752HS_COMMAND_MAX
118 };
119
120 static inline struct saa6752hs_state *to_state(struct v4l2_subdev *sd)
121 {
122 return container_of(sd, struct saa6752hs_state, sd);
123 }
124
125 /* ---------------------------------------------------------------------- */
126
127 static const u8 PAT[] = {
128 0xc2, /* i2c register */
129 0x00, /* table number for encoder */
130
131 0x47, /* sync */
132 0x40, 0x00, /* transport_error_indicator(0), payload_unit_start(1), transport_priority(0), pid(0) */
133 0x10, /* transport_scrambling_control(00), adaptation_field_control(01), continuity_counter(0) */
134
135 0x00, /* PSI pointer to start of table */
136
137 0x00, /* tid(0) */
138 0xb0, 0x0d, /* section_syntax_indicator(1), section_length(13) */
139
140 0x00, 0x01, /* transport_stream_id(1) */
141
142 0xc1, /* version_number(0), current_next_indicator(1) */
143
144 0x00, 0x00, /* section_number(0), last_section_number(0) */
145
146 0x00, 0x01, /* program_number(1) */
147
148 0xe0, 0x00, /* PMT PID */
149
150 0x00, 0x00, 0x00, 0x00 /* CRC32 */
151 };
152
153 static const u8 PMT[] = {
154 0xc2, /* i2c register */
155 0x01, /* table number for encoder */
156
157 0x47, /* sync */
158 0x40, 0x00, /* transport_error_indicator(0), payload_unit_start(1), transport_priority(0), pid */
159 0x10, /* transport_scrambling_control(00), adaptation_field_control(01), continuity_counter(0) */
160
161 0x00, /* PSI pointer to start of table */
162
163 0x02, /* tid(2) */
164 0xb0, 0x17, /* section_syntax_indicator(1), section_length(23) */
165
166 0x00, 0x01, /* program_number(1) */
167
168 0xc1, /* version_number(0), current_next_indicator(1) */
169
170 0x00, 0x00, /* section_number(0), last_section_number(0) */
171
172 0xe0, 0x00, /* PCR_PID */
173
174 0xf0, 0x00, /* program_info_length(0) */
175
176 0x02, 0xe0, 0x00, 0xf0, 0x00, /* video stream type(2), pid */
177 0x04, 0xe0, 0x00, 0xf0, 0x00, /* audio stream type(4), pid */
178
179 0x00, 0x00, 0x00, 0x00 /* CRC32 */
180 };
181
182 static const u8 PMT_AC3[] = {
183 0xc2, /* i2c register */
184 0x01, /* table number for encoder(1) */
185 0x47, /* sync */
186
187 0x40, /* transport_error_indicator(0), payload_unit_start(1), transport_priority(0) */
188 0x10, /* PMT PID (0x0010) */
189 0x10, /* transport_scrambling_control(00), adaptation_field_control(01), continuity_counter(0) */
190
191 0x00, /* PSI pointer to start of table */
192
193 0x02, /* TID (2) */
194 0xb0, 0x1a, /* section_syntax_indicator(1), section_length(26) */
195
196 0x00, 0x01, /* program_number(1) */
197
198 0xc1, /* version_number(0), current_next_indicator(1) */
199
200 0x00, 0x00, /* section_number(0), last_section_number(0) */
201
202 0xe1, 0x04, /* PCR_PID (0x0104) */
203
204 0xf0, 0x00, /* program_info_length(0) */
205
206 0x02, 0xe1, 0x00, 0xf0, 0x00, /* video stream type(2), pid */
207 0x06, 0xe1, 0x03, 0xf0, 0x03, /* audio stream type(6), pid */
208 0x6a, /* AC3 */
209 0x01, /* Descriptor_length(1) */
210 0x00, /* component_type_flag(0), bsid_flag(0), mainid_flag(0), asvc_flag(0), reserved flags(0) */
211
212 0xED, 0xDE, 0x2D, 0xF3 /* CRC32 BE */
213 };
214
215 static const struct saa6752hs_mpeg_params param_defaults =
216 {
217 .ts_pid_pmt = 16,
218 .ts_pid_video = 260,
219 .ts_pid_audio = 256,
220 .ts_pid_pcr = 259,
221
222 .vi_aspect = V4L2_MPEG_VIDEO_ASPECT_4x3,
223 .vi_bitrate = 4000,
224 .vi_bitrate_peak = 6000,
225 .vi_bitrate_mode = V4L2_MPEG_VIDEO_BITRATE_MODE_VBR,
226
227 .au_encoding = V4L2_MPEG_AUDIO_ENCODING_LAYER_2,
228 .au_l2_bitrate = V4L2_MPEG_AUDIO_L2_BITRATE_256K,
229 .au_ac3_bitrate = V4L2_MPEG_AUDIO_AC3_BITRATE_256K,
230 };
231
232 /* ---------------------------------------------------------------------- */
233
234 static int saa6752hs_chip_command(struct i2c_client *client,
235 enum saa6752hs_command command)
236 {
237 unsigned char buf[3];
238 unsigned long timeout;
239 int status = 0;
240
241 /* execute the command */
242 switch(command) {
243 case SAA6752HS_COMMAND_RESET:
244 buf[0] = 0x00;
245 break;
246
247 case SAA6752HS_COMMAND_STOP:
248 buf[0] = 0x03;
249 break;
250
251 case SAA6752HS_COMMAND_START:
252 buf[0] = 0x02;
253 break;
254
255 case SAA6752HS_COMMAND_PAUSE:
256 buf[0] = 0x04;
257 break;
258
259 case SAA6752HS_COMMAND_RECONFIGURE:
260 buf[0] = 0x05;
261 break;
262
263 case SAA6752HS_COMMAND_SLEEP:
264 buf[0] = 0x06;
265 break;
266
267 case SAA6752HS_COMMAND_RECONFIGURE_FORCE:
268 buf[0] = 0x07;
269 break;
270
271 default:
272 return -EINVAL;
273 }
274
275 /* set it and wait for it to be so */
276 i2c_master_send(client, buf, 1);
277 timeout = jiffies + HZ * 3;
278 for (;;) {
279 /* get the current status */
280 buf[0] = 0x10;
281 i2c_master_send(client, buf, 1);
282 i2c_master_recv(client, buf, 1);
283
284 if (!(buf[0] & 0x20))
285 break;
286 if (time_after(jiffies,timeout)) {
287 status = -ETIMEDOUT;
288 break;
289 }
290
291 msleep(10);
292 }
293
294 /* delay a bit to let encoder settle */
295 msleep(50);
296
297 return status;
298 }
299
300
301 static inline void set_reg8(struct i2c_client *client, uint8_t reg, uint8_t val)
302 {
303 u8 buf[2];
304
305 buf[0] = reg;
306 buf[1] = val;
307 i2c_master_send(client, buf, 2);
308 }
309
310 static inline void set_reg16(struct i2c_client *client, uint8_t reg, uint16_t val)
311 {
312 u8 buf[3];
313
314 buf[0] = reg;
315 buf[1] = val >> 8;
316 buf[2] = val & 0xff;
317 i2c_master_send(client, buf, 3);
318 }
319
320 static int saa6752hs_set_bitrate(struct i2c_client *client,
321 struct saa6752hs_state *h)
322 {
323 struct saa6752hs_mpeg_params *params = &h->params;
324 int tot_bitrate;
325 int is_384k;
326
327 /* set the bitrate mode */
328 set_reg8(client, 0x71,
329 params->vi_bitrate_mode != V4L2_MPEG_VIDEO_BITRATE_MODE_VBR);
330
331 /* set the video bitrate */
332 if (params->vi_bitrate_mode == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR) {
333 /* set the target bitrate */
334 set_reg16(client, 0x80, params->vi_bitrate);
335
336 /* set the max bitrate */
337 set_reg16(client, 0x81, params->vi_bitrate_peak);
338 tot_bitrate = params->vi_bitrate_peak;
339 } else {
340 /* set the target bitrate (no max bitrate for CBR) */
341 set_reg16(client, 0x81, params->vi_bitrate);
342 tot_bitrate = params->vi_bitrate;
343 }
344
345 /* set the audio encoding */
346 set_reg8(client, 0x93,
347 params->au_encoding == V4L2_MPEG_AUDIO_ENCODING_AC3);
348
349 /* set the audio bitrate */
350 if (params->au_encoding == V4L2_MPEG_AUDIO_ENCODING_AC3)
351 is_384k = V4L2_MPEG_AUDIO_AC3_BITRATE_384K == params->au_ac3_bitrate;
352 else
353 is_384k = V4L2_MPEG_AUDIO_L2_BITRATE_384K == params->au_l2_bitrate;
354 set_reg8(client, 0x94, is_384k);
355 tot_bitrate += is_384k ? 384 : 256;
356
357 /* Note: the total max bitrate is determined by adding the video and audio
358 bitrates together and also adding an extra 768kbit/s to stay on the
359 safe side. If more control should be required, then an extra MPEG control
360 should be added. */
361 tot_bitrate += 768;
362 if (tot_bitrate > MPEG_TOTAL_TARGET_BITRATE_MAX)
363 tot_bitrate = MPEG_TOTAL_TARGET_BITRATE_MAX;
364
365 /* set the total bitrate */
366 set_reg16(client, 0xb1, tot_bitrate);
367 return 0;
368 }
369
370 static int saa6752hs_try_ctrl(struct v4l2_ctrl *ctrl)
371 {
372 struct saa6752hs_state *h =
373 container_of(ctrl->handler, struct saa6752hs_state, hdl);
374
375 switch (ctrl->id) {
376 case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
377 /* peak bitrate shall be >= normal bitrate */
378 if (ctrl->val == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR &&
379 h->video_bitrate_peak->val < h->video_bitrate->val)
380 h->video_bitrate_peak->val = h->video_bitrate->val;
381 break;
382 }
383 return 0;
384 }
385
386 static int saa6752hs_s_ctrl(struct v4l2_ctrl *ctrl)
387 {
388 struct saa6752hs_state *h =
389 container_of(ctrl->handler, struct saa6752hs_state, hdl);
390 struct saa6752hs_mpeg_params *params = &h->params;
391
392 switch (ctrl->id) {
393 case V4L2_CID_MPEG_STREAM_TYPE:
394 break;
395 case V4L2_CID_MPEG_STREAM_PID_PMT:
396 params->ts_pid_pmt = ctrl->val;
397 break;
398 case V4L2_CID_MPEG_STREAM_PID_AUDIO:
399 params->ts_pid_audio = ctrl->val;
400 break;
401 case V4L2_CID_MPEG_STREAM_PID_VIDEO:
402 params->ts_pid_video = ctrl->val;
403 break;
404 case V4L2_CID_MPEG_STREAM_PID_PCR:
405 params->ts_pid_pcr = ctrl->val;
406 break;
407 case V4L2_CID_MPEG_AUDIO_ENCODING:
408 params->au_encoding = ctrl->val;
409 break;
410 case V4L2_CID_MPEG_AUDIO_L2_BITRATE:
411 params->au_l2_bitrate = ctrl->val;
412 break;
413 case V4L2_CID_MPEG_AUDIO_AC3_BITRATE:
414 params->au_ac3_bitrate = ctrl->val;
415 break;
416 case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ:
417 break;
418 case V4L2_CID_MPEG_VIDEO_ENCODING:
419 break;
420 case V4L2_CID_MPEG_VIDEO_ASPECT:
421 params->vi_aspect = ctrl->val;
422 break;
423 case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
424 params->vi_bitrate_mode = ctrl->val;
425 params->vi_bitrate = h->video_bitrate->val / 1000;
426 params->vi_bitrate_peak = h->video_bitrate_peak->val / 1000;
427 v4l2_ctrl_activate(h->video_bitrate_peak,
428 ctrl->val == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR);
429 break;
430 default:
431 return -EINVAL;
432 }
433 return 0;
434 }
435
436 static int saa6752hs_init(struct v4l2_subdev *sd, u32 leading_null_bytes)
437 {
438 unsigned char buf[9], buf2[4];
439 struct saa6752hs_state *h = to_state(sd);
440 struct i2c_client *client = v4l2_get_subdevdata(sd);
441 unsigned size;
442 u32 crc;
443 unsigned char localPAT[256];
444 unsigned char localPMT[256];
445
446 /* Set video format - must be done first as it resets other settings */
447 set_reg8(client, 0x41, h->video_format);
448
449 /* Set number of lines in input signal */
450 set_reg8(client, 0x40, (h->standard & V4L2_STD_525_60) ? 1 : 0);
451
452 /* set bitrate */
453 saa6752hs_set_bitrate(client, h);
454
455 /* Set GOP structure {3, 13} */
456 set_reg16(client, 0x72, 0x030d);
457
458 /* Set minimum Q-scale {4} */
459 set_reg8(client, 0x82, 0x04);
460
461 /* Set maximum Q-scale {12} */
462 set_reg8(client, 0x83, 0x0c);
463
464 /* Set Output Protocol */
465 set_reg8(client, 0xd0, 0x81);
466
467 /* Set video output stream format {TS} */
468 set_reg8(client, 0xb0, 0x05);
469
470 /* Set leading null byte for TS */
471 set_reg16(client, 0xf6, leading_null_bytes);
472
473 /* compute PAT */
474 memcpy(localPAT, PAT, sizeof(PAT));
475 localPAT[17] = 0xe0 | ((h->params.ts_pid_pmt >> 8) & 0x0f);
476 localPAT[18] = h->params.ts_pid_pmt & 0xff;
477 crc = crc32_be(~0, &localPAT[7], sizeof(PAT) - 7 - 4);
478 localPAT[sizeof(PAT) - 4] = (crc >> 24) & 0xFF;
479 localPAT[sizeof(PAT) - 3] = (crc >> 16) & 0xFF;
480 localPAT[sizeof(PAT) - 2] = (crc >> 8) & 0xFF;
481 localPAT[sizeof(PAT) - 1] = crc & 0xFF;
482
483 /* compute PMT */
484 if (h->params.au_encoding == V4L2_MPEG_AUDIO_ENCODING_AC3) {
485 size = sizeof(PMT_AC3);
486 memcpy(localPMT, PMT_AC3, size);
487 } else {
488 size = sizeof(PMT);
489 memcpy(localPMT, PMT, size);
490 }
491 localPMT[3] = 0x40 | ((h->params.ts_pid_pmt >> 8) & 0x0f);
492 localPMT[4] = h->params.ts_pid_pmt & 0xff;
493 localPMT[15] = 0xE0 | ((h->params.ts_pid_pcr >> 8) & 0x0F);
494 localPMT[16] = h->params.ts_pid_pcr & 0xFF;
495 localPMT[20] = 0xE0 | ((h->params.ts_pid_video >> 8) & 0x0F);
496 localPMT[21] = h->params.ts_pid_video & 0xFF;
497 localPMT[25] = 0xE0 | ((h->params.ts_pid_audio >> 8) & 0x0F);
498 localPMT[26] = h->params.ts_pid_audio & 0xFF;
499 crc = crc32_be(~0, &localPMT[7], size - 7 - 4);
500 localPMT[size - 4] = (crc >> 24) & 0xFF;
501 localPMT[size - 3] = (crc >> 16) & 0xFF;
502 localPMT[size - 2] = (crc >> 8) & 0xFF;
503 localPMT[size - 1] = crc & 0xFF;
504
505 /* Set Audio PID */
506 set_reg16(client, 0xc1, h->params.ts_pid_audio);
507
508 /* Set Video PID */
509 set_reg16(client, 0xc0, h->params.ts_pid_video);
510
511 /* Set PCR PID */
512 set_reg16(client, 0xc4, h->params.ts_pid_pcr);
513
514 /* Send SI tables */
515 i2c_master_send(client, localPAT, sizeof(PAT));
516 i2c_master_send(client, localPMT, size);
517
518 /* mute then unmute audio. This removes buzzing artefacts */
519 set_reg8(client, 0xa4, 1);
520 set_reg8(client, 0xa4, 0);
521
522 /* start it going */
523 saa6752hs_chip_command(client, SAA6752HS_COMMAND_START);
524
525 /* readout current state */
526 buf[0] = 0xE1;
527 buf[1] = 0xA7;
528 buf[2] = 0xFE;
529 buf[3] = 0x82;
530 buf[4] = 0xB0;
531 i2c_master_send(client, buf, 5);
532 i2c_master_recv(client, buf2, 4);
533
534 /* change aspect ratio */
535 buf[0] = 0xE0;
536 buf[1] = 0xA7;
537 buf[2] = 0xFE;
538 buf[3] = 0x82;
539 buf[4] = 0xB0;
540 buf[5] = buf2[0];
541 switch (h->params.vi_aspect) {
542 case V4L2_MPEG_VIDEO_ASPECT_16x9:
543 buf[6] = buf2[1] | 0x40;
544 break;
545 case V4L2_MPEG_VIDEO_ASPECT_4x3:
546 default:
547 buf[6] = buf2[1] & 0xBF;
548 break;
549 }
550 buf[7] = buf2[2];
551 buf[8] = buf2[3];
552 i2c_master_send(client, buf, 9);
553
554 return 0;
555 }
556
557 static int saa6752hs_g_mbus_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *f)
558 {
559 struct saa6752hs_state *h = to_state(sd);
560
561 if (h->video_format == SAA6752HS_VF_UNKNOWN)
562 h->video_format = SAA6752HS_VF_D1;
563 f->width = v4l2_format_table[h->video_format].fmt.pix.width;
564 f->height = v4l2_format_table[h->video_format].fmt.pix.height;
565 f->code = V4L2_MBUS_FMT_FIXED;
566 f->field = V4L2_FIELD_INTERLACED;
567 f->colorspace = V4L2_COLORSPACE_SMPTE170M;
568 return 0;
569 }
570
571 static int saa6752hs_try_mbus_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *f)
572 {
573 int dist_352, dist_480, dist_720;
574
575 f->code = V4L2_MBUS_FMT_FIXED;
576
577 dist_352 = abs(f->width - 352);
578 dist_480 = abs(f->width - 480);
579 dist_720 = abs(f->width - 720);
580 if (dist_720 < dist_480) {
581 f->width = 720;
582 f->height = 576;
583 } else if (dist_480 < dist_352) {
584 f->width = 480;
585 f->height = 576;
586 } else {
587 f->width = 352;
588 if (abs(f->height - 576) < abs(f->height - 288))
589 f->height = 576;
590 else
591 f->height = 288;
592 }
593 f->field = V4L2_FIELD_INTERLACED;
594 f->colorspace = V4L2_COLORSPACE_SMPTE170M;
595 return 0;
596 }
597
598 static int saa6752hs_s_mbus_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *f)
599 {
600 struct saa6752hs_state *h = to_state(sd);
601
602 if (f->code != V4L2_MBUS_FMT_FIXED)
603 return -EINVAL;
604
605 /*
606 FIXME: translate and round width/height into EMPRESS
607 subsample type:
608
609 type | PAL | NTSC
610 ---------------------------
611 SIF | 352x288 | 352x240
612 1/2 D1 | 352x576 | 352x480
613 2/3 D1 | 480x576 | 480x480
614 D1 | 720x576 | 720x480
615 */
616
617 saa6752hs_try_mbus_fmt(sd, f);
618 if (f->width == 720)
619 h->video_format = SAA6752HS_VF_D1;
620 else if (f->width == 480)
621 h->video_format = SAA6752HS_VF_2_3_D1;
622 else if (f->height == 576)
623 h->video_format = SAA6752HS_VF_1_2_D1;
624 else
625 h->video_format = SAA6752HS_VF_SIF;
626 return 0;
627 }
628
629 static int saa6752hs_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
630 {
631 struct saa6752hs_state *h = to_state(sd);
632
633 h->standard = std;
634 return 0;
635 }
636
637 /* ----------------------------------------------------------------------- */
638
639 static const struct v4l2_ctrl_ops saa6752hs_ctrl_ops = {
640 .try_ctrl = saa6752hs_try_ctrl,
641 .s_ctrl = saa6752hs_s_ctrl,
642 };
643
644 static const struct v4l2_subdev_core_ops saa6752hs_core_ops = {
645 .init = saa6752hs_init,
646 .s_std = saa6752hs_s_std,
647 };
648
649 static const struct v4l2_subdev_video_ops saa6752hs_video_ops = {
650 .s_mbus_fmt = saa6752hs_s_mbus_fmt,
651 .try_mbus_fmt = saa6752hs_try_mbus_fmt,
652 .g_mbus_fmt = saa6752hs_g_mbus_fmt,
653 };
654
655 static const struct v4l2_subdev_ops saa6752hs_ops = {
656 .core = &saa6752hs_core_ops,
657 .video = &saa6752hs_video_ops,
658 };
659
660 static int saa6752hs_probe(struct i2c_client *client,
661 const struct i2c_device_id *id)
662 {
663 struct saa6752hs_state *h = kzalloc(sizeof(*h), GFP_KERNEL);
664 struct v4l2_subdev *sd;
665 struct v4l2_ctrl_handler *hdl;
666 u8 addr = 0x13;
667 u8 data[12];
668
669 v4l_info(client, "chip found @ 0x%x (%s)\n",
670 client->addr << 1, client->adapter->name);
671 if (h == NULL)
672 return -ENOMEM;
673 sd = &h->sd;
674 v4l2_i2c_subdev_init(sd, client, &saa6752hs_ops);
675
676 i2c_master_send(client, &addr, 1);
677 i2c_master_recv(client, data, sizeof(data));
678 h->revision = (data[8] << 8) | data[9];
679 h->has_ac3 = 0;
680 if (h->revision == 0x0206) {
681 h->has_ac3 = 1;
682 v4l_info(client, "supports AC-3\n");
683 }
684 h->params = param_defaults;
685
686 hdl = &h->hdl;
687 v4l2_ctrl_handler_init(hdl, 14);
688 v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops,
689 V4L2_CID_MPEG_AUDIO_ENCODING,
690 h->has_ac3 ? V4L2_MPEG_AUDIO_ENCODING_AC3 :
691 V4L2_MPEG_AUDIO_ENCODING_LAYER_2,
692 0x0d, V4L2_MPEG_AUDIO_ENCODING_LAYER_2);
693
694 v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops,
695 V4L2_CID_MPEG_AUDIO_L2_BITRATE,
696 V4L2_MPEG_AUDIO_L2_BITRATE_384K,
697 ~((1 << V4L2_MPEG_AUDIO_L2_BITRATE_256K) |
698 (1 << V4L2_MPEG_AUDIO_L2_BITRATE_384K)),
699 V4L2_MPEG_AUDIO_L2_BITRATE_256K);
700
701 if (h->has_ac3)
702 v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops,
703 V4L2_CID_MPEG_AUDIO_AC3_BITRATE,
704 V4L2_MPEG_AUDIO_AC3_BITRATE_384K,
705 ~((1 << V4L2_MPEG_AUDIO_AC3_BITRATE_256K) |
706 (1 << V4L2_MPEG_AUDIO_AC3_BITRATE_384K)),
707 V4L2_MPEG_AUDIO_AC3_BITRATE_256K);
708
709 v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops,
710 V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ,
711 V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000,
712 ~(1 << V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000),
713 V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000);
714
715 v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops,
716 V4L2_CID_MPEG_VIDEO_ENCODING,
717 V4L2_MPEG_VIDEO_ENCODING_MPEG_2,
718 ~(1 << V4L2_MPEG_VIDEO_ENCODING_MPEG_2),
719 V4L2_MPEG_VIDEO_ENCODING_MPEG_2);
720
721 v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops,
722 V4L2_CID_MPEG_VIDEO_ASPECT,
723 V4L2_MPEG_VIDEO_ASPECT_16x9, 0x01,
724 V4L2_MPEG_VIDEO_ASPECT_4x3);
725
726 h->video_bitrate_peak = v4l2_ctrl_new_std(hdl, &saa6752hs_ctrl_ops,
727 V4L2_CID_MPEG_VIDEO_BITRATE_PEAK,
728 1000000, 27000000, 1000, 8000000);
729
730 v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops,
731 V4L2_CID_MPEG_STREAM_TYPE,
732 V4L2_MPEG_STREAM_TYPE_MPEG2_TS,
733 ~(1 << V4L2_MPEG_STREAM_TYPE_MPEG2_TS),
734 V4L2_MPEG_STREAM_TYPE_MPEG2_TS);
735
736 h->video_bitrate_mode = v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops,
737 V4L2_CID_MPEG_VIDEO_BITRATE_MODE,
738 V4L2_MPEG_VIDEO_BITRATE_MODE_CBR, 0,
739 V4L2_MPEG_VIDEO_BITRATE_MODE_VBR);
740 h->video_bitrate = v4l2_ctrl_new_std(hdl, &saa6752hs_ctrl_ops,
741 V4L2_CID_MPEG_VIDEO_BITRATE, 1000000, 27000000, 1000, 6000000);
742 v4l2_ctrl_new_std(hdl, &saa6752hs_ctrl_ops,
743 V4L2_CID_MPEG_STREAM_PID_PMT, 0, (1 << 14) - 1, 1, 16);
744 v4l2_ctrl_new_std(hdl, &saa6752hs_ctrl_ops,
745 V4L2_CID_MPEG_STREAM_PID_AUDIO, 0, (1 << 14) - 1, 1, 260);
746 v4l2_ctrl_new_std(hdl, &saa6752hs_ctrl_ops,
747 V4L2_CID_MPEG_STREAM_PID_VIDEO, 0, (1 << 14) - 1, 1, 256);
748 v4l2_ctrl_new_std(hdl, &saa6752hs_ctrl_ops,
749 V4L2_CID_MPEG_STREAM_PID_PCR, 0, (1 << 14) - 1, 1, 259);
750 sd->ctrl_handler = hdl;
751 if (hdl->error) {
752 int err = hdl->error;
753
754 v4l2_ctrl_handler_free(hdl);
755 kfree(h);
756 return err;
757 }
758 v4l2_ctrl_cluster(3, &h->video_bitrate_mode);
759 v4l2_ctrl_handler_setup(hdl);
760 h->standard = 0; /* Assume 625 input lines */
761 return 0;
762 }
763
764 static int saa6752hs_remove(struct i2c_client *client)
765 {
766 struct v4l2_subdev *sd = i2c_get_clientdata(client);
767
768 v4l2_device_unregister_subdev(sd);
769 v4l2_ctrl_handler_free(&to_state(sd)->hdl);
770 kfree(to_state(sd));
771 return 0;
772 }
773
774 static const struct i2c_device_id saa6752hs_id[] = {
775 { "saa6752hs", 0 },
776 { }
777 };
778 MODULE_DEVICE_TABLE(i2c, saa6752hs_id);
779
780 static struct i2c_driver saa6752hs_driver = {
781 .driver = {
782 .owner = THIS_MODULE,
783 .name = "saa6752hs",
784 },
785 .probe = saa6752hs_probe,
786 .remove = saa6752hs_remove,
787 .id_table = saa6752hs_id,
788 };
789
790 module_i2c_driver(saa6752hs_driver);
Linux with added FPC-III support