Commit | Line | Data |
---|---|---|
e281db58 HV |
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 | ||
1da177e4 LT |
25 | #include <linux/module.h> |
26 | #include <linux/kernel.h> | |
1da177e4 LT |
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> | |
cab462f7 | 35 | #include <linux/videodev2.h> |
d8100f44 HV |
36 | #include <linux/init.h> |
37 | #include <linux/crc32.h> | |
5b73e98c | 38 | #include <media/v4l2-device.h> |
bb732ccc | 39 | #include <media/v4l2-ctrls.h> |
cab462f7 | 40 | #include <media/v4l2-common.h> |
1da177e4 | 41 | |
1da177e4 LT |
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 | ||
1da177e4 LT |
47 | |
48 | MODULE_DESCRIPTION("device driver for saa6752hs MPEG2 encoder"); | |
49 | MODULE_AUTHOR("Andrew de Quincey"); | |
50 | MODULE_LICENSE("GPL"); | |
51 | ||
0a4c9c93 FC |
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 | ||
86b79d66 HV |
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 */ | |
e281db58 HV |
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; | |
86b79d66 HV |
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 | ||
0a4c9c93 FC |
79 | static const struct v4l2_format v4l2_format_table[] = |
80 | { | |
ac19ecc6 MCC |
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}}}, | |
0a4c9c93 FC |
91 | }; |
92 | ||
1da177e4 | 93 | struct saa6752hs_state { |
5b73e98c | 94 | struct v4l2_subdev sd; |
bb732ccc HV |
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 | }; | |
e281db58 HV |
101 | u32 revision; |
102 | int has_ac3; | |
86b79d66 | 103 | struct saa6752hs_mpeg_params params; |
0a4c9c93 | 104 | enum saa6752hs_videoformat video_format; |
9b71521b | 105 | v4l2_std_id standard; |
1da177e4 LT |
106 | }; |
107 | ||
108 | enum saa6752hs_command { | |
109 | SAA6752HS_COMMAND_RESET = 0, | |
657de3cd TP |
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, | |
1da177e4 LT |
115 | SAA6752HS_COMMAND_RECONFIGURE_FORCE = 6, |
116 | ||
117 | SAA6752HS_COMMAND_MAX | |
118 | }; | |
119 | ||
5b73e98c HV |
120 | static inline struct saa6752hs_state *to_state(struct v4l2_subdev *sd) |
121 | { | |
122 | return container_of(sd, struct saa6752hs_state, sd); | |
123 | } | |
124 | ||
1da177e4 LT |
125 | /* ---------------------------------------------------------------------- */ |
126 | ||
d8100f44 | 127 | static const u8 PAT[] = { |
9b71521b RB |
128 | 0xc2, /* i2c register */ |
129 | 0x00, /* table number for encoder */ | |
1da177e4 | 130 | |
9b71521b RB |
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) */ | |
1da177e4 | 134 | |
9b71521b | 135 | 0x00, /* PSI pointer to start of table */ |
1da177e4 | 136 | |
9b71521b RB |
137 | 0x00, /* tid(0) */ |
138 | 0xb0, 0x0d, /* section_syntax_indicator(1), section_length(13) */ | |
1da177e4 | 139 | |
9b71521b | 140 | 0x00, 0x01, /* transport_stream_id(1) */ |
1da177e4 | 141 | |
9b71521b | 142 | 0xc1, /* version_number(0), current_next_indicator(1) */ |
1da177e4 | 143 | |
9b71521b | 144 | 0x00, 0x00, /* section_number(0), last_section_number(0) */ |
1da177e4 | 145 | |
9b71521b | 146 | 0x00, 0x01, /* program_number(1) */ |
1da177e4 | 147 | |
9b71521b | 148 | 0xe0, 0x00, /* PMT PID */ |
1da177e4 | 149 | |
9b71521b | 150 | 0x00, 0x00, 0x00, 0x00 /* CRC32 */ |
1da177e4 LT |
151 | }; |
152 | ||
d8100f44 | 153 | static const u8 PMT[] = { |
9b71521b RB |
154 | 0xc2, /* i2c register */ |
155 | 0x01, /* table number for encoder */ | |
1da177e4 | 156 | |
9b71521b RB |
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) */ | |
1da177e4 | 160 | |
9b71521b | 161 | 0x00, /* PSI pointer to start of table */ |
1da177e4 | 162 | |
9b71521b RB |
163 | 0x02, /* tid(2) */ |
164 | 0xb0, 0x17, /* section_syntax_indicator(1), section_length(23) */ | |
1da177e4 | 165 | |
9b71521b | 166 | 0x00, 0x01, /* program_number(1) */ |
1da177e4 | 167 | |
9b71521b | 168 | 0xc1, /* version_number(0), current_next_indicator(1) */ |
1da177e4 | 169 | |
9b71521b | 170 | 0x00, 0x00, /* section_number(0), last_section_number(0) */ |
1da177e4 | 171 | |
9b71521b | 172 | 0xe0, 0x00, /* PCR_PID */ |
1da177e4 | 173 | |
9b71521b | 174 | 0xf0, 0x00, /* program_info_length(0) */ |
1da177e4 | 175 | |
9b71521b RB |
176 | 0x02, 0xe0, 0x00, 0xf0, 0x00, /* video stream type(2), pid */ |
177 | 0x04, 0xe0, 0x00, 0xf0, 0x00, /* audio stream type(4), pid */ | |
1da177e4 | 178 | |
9b71521b | 179 | 0x00, 0x00, 0x00, 0x00 /* CRC32 */ |
1da177e4 LT |
180 | }; |
181 | ||
d8100f44 | 182 | static const u8 PMT_AC3[] = { |
3eea543b HV |
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 | ||
d8100f44 | 215 | static const struct saa6752hs_mpeg_params param_defaults = |
86b79d66 HV |
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 | ||
e281db58 | 227 | .au_encoding = V4L2_MPEG_AUDIO_ENCODING_LAYER_2, |
86b79d66 | 228 | .au_l2_bitrate = V4L2_MPEG_AUDIO_L2_BITRATE_256K, |
3eea543b | 229 | .au_ac3_bitrate = V4L2_MPEG_AUDIO_AC3_BITRATE_256K, |
86b79d66 HV |
230 | }; |
231 | ||
1da177e4 LT |
232 | /* ---------------------------------------------------------------------- */ |
233 | ||
ff5f26b4 | 234 | static int saa6752hs_chip_command(struct i2c_client *client, |
1da177e4 LT |
235 | enum saa6752hs_command command) |
236 | { | |
237 | unsigned char buf[3]; | |
238 | unsigned long timeout; | |
239 | int status = 0; | |
240 | ||
9b71521b | 241 | /* execute the command */ |
1da177e4 | 242 | switch(command) { |
4ac97914 MCC |
243 | case SAA6752HS_COMMAND_RESET: |
244 | buf[0] = 0x00; | |
1da177e4 LT |
245 | break; |
246 | ||
247 | case SAA6752HS_COMMAND_STOP: | |
4ac97914 | 248 | buf[0] = 0x03; |
1da177e4 LT |
249 | break; |
250 | ||
251 | case SAA6752HS_COMMAND_START: | |
4ac97914 | 252 | buf[0] = 0x02; |
1da177e4 LT |
253 | break; |
254 | ||
255 | case SAA6752HS_COMMAND_PAUSE: | |
4ac97914 | 256 | buf[0] = 0x04; |
1da177e4 LT |
257 | break; |
258 | ||
259 | case SAA6752HS_COMMAND_RECONFIGURE: | |
260 | buf[0] = 0x05; | |
261 | break; | |
262 | ||
4ac97914 MCC |
263 | case SAA6752HS_COMMAND_SLEEP: |
264 | buf[0] = 0x06; | |
1da177e4 LT |
265 | break; |
266 | ||
4ac97914 | 267 | case SAA6752HS_COMMAND_RECONFIGURE_FORCE: |
1da177e4 LT |
268 | buf[0] = 0x07; |
269 | break; | |
270 | ||
271 | default: | |
272 | return -EINVAL; | |
273 | } | |
274 | ||
4ac97914 | 275 | /* set it and wait for it to be so */ |
1da177e4 LT |
276 | i2c_master_send(client, buf, 1); |
277 | timeout = jiffies + HZ * 3; | |
278 | for (;;) { | |
9b71521b | 279 | /* get the current status */ |
1da177e4 | 280 | buf[0] = 0x10; |
4ac97914 | 281 | i2c_master_send(client, buf, 1); |
1da177e4 LT |
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 | ||
1da177e4 LT |
291 | msleep(10); |
292 | } | |
293 | ||
9b71521b | 294 | /* delay a bit to let encoder settle */ |
1da177e4 LT |
295 | msleep(50); |
296 | ||
4ac97914 | 297 | return status; |
1da177e4 LT |
298 | } |
299 | ||
300 | ||
ff5f26b4 HV |
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, | |
e281db58 | 321 | struct saa6752hs_state *h) |
1da177e4 | 322 | { |
e281db58 | 323 | struct saa6752hs_mpeg_params *params = &h->params; |
b57e5578 | 324 | int tot_bitrate; |
ff5f26b4 | 325 | int is_384k; |
1da177e4 | 326 | |
9b71521b | 327 | /* set the bitrate mode */ |
ff5f26b4 HV |
328 | set_reg8(client, 0x71, |
329 | params->vi_bitrate_mode != V4L2_MPEG_VIDEO_BITRATE_MODE_VBR); | |
1da177e4 | 330 | |
9b71521b | 331 | /* set the video bitrate */ |
b57e5578 | 332 | if (params->vi_bitrate_mode == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR) { |
9b71521b | 333 | /* set the target bitrate */ |
ff5f26b4 | 334 | set_reg16(client, 0x80, params->vi_bitrate); |
1da177e4 | 335 | |
9b71521b | 336 | /* set the max bitrate */ |
ff5f26b4 | 337 | set_reg16(client, 0x81, params->vi_bitrate_peak); |
b57e5578 | 338 | tot_bitrate = params->vi_bitrate_peak; |
1da177e4 | 339 | } else { |
9b71521b | 340 | /* set the target bitrate (no max bitrate for CBR) */ |
ff5f26b4 | 341 | set_reg16(client, 0x81, params->vi_bitrate); |
b57e5578 | 342 | tot_bitrate = params->vi_bitrate; |
1da177e4 LT |
343 | } |
344 | ||
e281db58 | 345 | /* set the audio encoding */ |
ff5f26b4 HV |
346 | set_reg8(client, 0x93, |
347 | params->au_encoding == V4L2_MPEG_AUDIO_ENCODING_AC3); | |
e281db58 | 348 | |
9b71521b | 349 | /* set the audio bitrate */ |
e281db58 | 350 | if (params->au_encoding == V4L2_MPEG_AUDIO_ENCODING_AC3) |
ff5f26b4 | 351 | is_384k = V4L2_MPEG_AUDIO_AC3_BITRATE_384K == params->au_ac3_bitrate; |
e281db58 | 352 | else |
ff5f26b4 HV |
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; | |
b57e5578 MCC |
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; | |
1da177e4 | 364 | |
9b71521b | 365 | /* set the total bitrate */ |
ff5f26b4 | 366 | set_reg16(client, 0xb1, tot_bitrate); |
1da177e4 LT |
367 | return 0; |
368 | } | |
369 | ||
bb732ccc | 370 | static int saa6752hs_try_ctrl(struct v4l2_ctrl *ctrl) |
5b73e98c | 371 | { |
bb732ccc HV |
372 | struct saa6752hs_state *h = |
373 | container_of(ctrl->handler, struct saa6752hs_state, hdl); | |
374 | ||
5b73e98c | 375 | switch (ctrl->id) { |
5b73e98c | 376 | case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: |
bb732ccc HV |
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; | |
5b73e98c | 381 | break; |
0a4c9c93 | 382 | } |
5b73e98c | 383 | return 0; |
0a4c9c93 FC |
384 | } |
385 | ||
bb732ccc | 386 | static int saa6752hs_s_ctrl(struct v4l2_ctrl *ctrl) |
86b79d66 | 387 | { |
bb732ccc HV |
388 | struct saa6752hs_state *h = |
389 | container_of(ctrl->handler, struct saa6752hs_state, hdl); | |
390 | struct saa6752hs_mpeg_params *params = &h->params; | |
86b79d66 | 391 | |
86b79d66 | 392 | switch (ctrl->id) { |
5b73e98c | 393 | case V4L2_CID_MPEG_STREAM_TYPE: |
5b73e98c HV |
394 | break; |
395 | case V4L2_CID_MPEG_STREAM_PID_PMT: | |
bb732ccc | 396 | params->ts_pid_pmt = ctrl->val; |
5b73e98c HV |
397 | break; |
398 | case V4L2_CID_MPEG_STREAM_PID_AUDIO: | |
bb732ccc | 399 | params->ts_pid_audio = ctrl->val; |
5b73e98c HV |
400 | break; |
401 | case V4L2_CID_MPEG_STREAM_PID_VIDEO: | |
bb732ccc | 402 | params->ts_pid_video = ctrl->val; |
5b73e98c HV |
403 | break; |
404 | case V4L2_CID_MPEG_STREAM_PID_PCR: | |
bb732ccc | 405 | params->ts_pid_pcr = ctrl->val; |
5b73e98c HV |
406 | break; |
407 | case V4L2_CID_MPEG_AUDIO_ENCODING: | |
bb732ccc | 408 | params->au_encoding = ctrl->val; |
5b73e98c HV |
409 | break; |
410 | case V4L2_CID_MPEG_AUDIO_L2_BITRATE: | |
bb732ccc | 411 | params->au_l2_bitrate = ctrl->val; |
5b73e98c HV |
412 | break; |
413 | case V4L2_CID_MPEG_AUDIO_AC3_BITRATE: | |
bb732ccc | 414 | params->au_ac3_bitrate = ctrl->val; |
5b73e98c HV |
415 | break; |
416 | case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ: | |
5b73e98c HV |
417 | break; |
418 | case V4L2_CID_MPEG_VIDEO_ENCODING: | |
5b73e98c HV |
419 | break; |
420 | case V4L2_CID_MPEG_VIDEO_ASPECT: | |
bb732ccc | 421 | params->vi_aspect = ctrl->val; |
5b73e98c HV |
422 | break; |
423 | case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: | |
bb732ccc HV |
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); | |
5b73e98c HV |
429 | break; |
430 | default: | |
431 | return -EINVAL; | |
86b79d66 | 432 | } |
86b79d66 | 433 | return 0; |
1da177e4 LT |
434 | } |
435 | ||
5b73e98c | 436 | static int saa6752hs_init(struct v4l2_subdev *sd, u32 leading_null_bytes) |
1da177e4 LT |
437 | { |
438 | unsigned char buf[9], buf2[4]; | |
5b73e98c HV |
439 | struct saa6752hs_state *h = to_state(sd); |
440 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
3eea543b | 441 | unsigned size; |
1da177e4 LT |
442 | u32 crc; |
443 | unsigned char localPAT[256]; | |
444 | unsigned char localPMT[256]; | |
445 | ||
9b71521b | 446 | /* Set video format - must be done first as it resets other settings */ |
ff5f26b4 | 447 | set_reg8(client, 0x41, h->video_format); |
1da177e4 | 448 | |
9b71521b | 449 | /* Set number of lines in input signal */ |
ff5f26b4 | 450 | set_reg8(client, 0x40, (h->standard & V4L2_STD_525_60) ? 1 : 0); |
9b71521b | 451 | |
4ac97914 | 452 | /* set bitrate */ |
e281db58 | 453 | saa6752hs_set_bitrate(client, h); |
1da177e4 | 454 | |
9b71521b | 455 | /* Set GOP structure {3, 13} */ |
ff5f26b4 | 456 | set_reg16(client, 0x72, 0x030d); |
1da177e4 | 457 | |
657de3cd | 458 | /* Set minimum Q-scale {4} */ |
ff5f26b4 | 459 | set_reg8(client, 0x82, 0x04); |
1da177e4 | 460 | |
657de3cd | 461 | /* Set maximum Q-scale {12} */ |
ff5f26b4 | 462 | set_reg8(client, 0x83, 0x0c); |
1da177e4 | 463 | |
657de3cd | 464 | /* Set Output Protocol */ |
ff5f26b4 | 465 | set_reg8(client, 0xd0, 0x81); |
1da177e4 | 466 | |
657de3cd | 467 | /* Set video output stream format {TS} */ |
ff5f26b4 | 468 | set_reg8(client, 0xb0, 0x05); |
1da177e4 | 469 | |
f03813e4 | 470 | /* Set leading null byte for TS */ |
ff5f26b4 | 471 | set_reg16(client, 0xf6, leading_null_bytes); |
f03813e4 | 472 | |
1da177e4 LT |
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 */ | |
3eea543b HV |
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 | } | |
4ac97914 MCC |
491 | localPMT[3] = 0x40 | ((h->params.ts_pid_pmt >> 8) & 0x0f); |
492 | localPMT[4] = h->params.ts_pid_pmt & 0xff; | |
1da177e4 LT |
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; | |
3eea543b HV |
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; | |
1da177e4 | 504 | |
657de3cd | 505 | /* Set Audio PID */ |
ff5f26b4 | 506 | set_reg16(client, 0xc1, h->params.ts_pid_audio); |
1da177e4 | 507 | |
9b71521b | 508 | /* Set Video PID */ |
ff5f26b4 | 509 | set_reg16(client, 0xc0, h->params.ts_pid_video); |
1da177e4 | 510 | |
4ac97914 | 511 | /* Set PCR PID */ |
ff5f26b4 | 512 | set_reg16(client, 0xc4, h->params.ts_pid_pcr); |
1da177e4 | 513 | |
9b71521b | 514 | /* Send SI tables */ |
3eea543b HV |
515 | i2c_master_send(client, localPAT, sizeof(PAT)); |
516 | i2c_master_send(client, localPMT, size); | |
1da177e4 | 517 | |
9b71521b | 518 | /* mute then unmute audio. This removes buzzing artefacts */ |
ff5f26b4 HV |
519 | set_reg8(client, 0xa4, 1); |
520 | set_reg8(client, 0xa4, 0); | |
1da177e4 | 521 | |
9b71521b | 522 | /* start it going */ |
1da177e4 LT |
523 | saa6752hs_chip_command(client, SAA6752HS_COMMAND_START); |
524 | ||
9b71521b | 525 | /* readout current state */ |
1da177e4 LT |
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 | ||
9b71521b | 534 | /* change aspect ratio */ |
1da177e4 LT |
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]; | |
5b73e98c | 541 | switch (h->params.vi_aspect) { |
86b79d66 | 542 | case V4L2_MPEG_VIDEO_ASPECT_16x9: |
1da177e4 LT |
543 | buf[6] = buf2[1] | 0x40; |
544 | break; | |
86b79d66 | 545 | case V4L2_MPEG_VIDEO_ASPECT_4x3: |
1da177e4 LT |
546 | default: |
547 | buf[6] = buf2[1] & 0xBF; | |
548 | break; | |
1da177e4 LT |
549 | } |
550 | buf[7] = buf2[2]; | |
551 | buf[8] = buf2[3]; | |
552 | i2c_master_send(client, buf, 9); | |
553 | ||
1da177e4 LT |
554 | return 0; |
555 | } | |
556 | ||
da298c6d HV |
557 | static int saa6752hs_get_fmt(struct v4l2_subdev *sd, |
558 | struct v4l2_subdev_pad_config *cfg, | |
559 | struct v4l2_subdev_format *format) | |
5b73e98c | 560 | { |
da298c6d | 561 | struct v4l2_mbus_framefmt *f = &format->format; |
5b73e98c | 562 | struct saa6752hs_state *h = to_state(sd); |
e281db58 | 563 | |
da298c6d HV |
564 | if (format->pad) |
565 | return -EINVAL; | |
566 | ||
5b73e98c HV |
567 | if (h->video_format == SAA6752HS_VF_UNKNOWN) |
568 | h->video_format = SAA6752HS_VF_D1; | |
51623ef9 HV |
569 | f->width = v4l2_format_table[h->video_format].fmt.pix.width; |
570 | f->height = v4l2_format_table[h->video_format].fmt.pix.height; | |
f5fe58fd | 571 | f->code = MEDIA_BUS_FMT_FIXED; |
51623ef9 HV |
572 | f->field = V4L2_FIELD_INTERLACED; |
573 | f->colorspace = V4L2_COLORSPACE_SMPTE170M; | |
5b73e98c HV |
574 | return 0; |
575 | } | |
576 | ||
717fd5b4 HV |
577 | static int saa6752hs_set_fmt(struct v4l2_subdev *sd, |
578 | struct v4l2_subdev_pad_config *cfg, | |
579 | struct v4l2_subdev_format *format) | |
cabc6508 | 580 | { |
717fd5b4 HV |
581 | struct v4l2_mbus_framefmt *f = &format->format; |
582 | struct saa6752hs_state *h = to_state(sd); | |
cabc6508 HV |
583 | int dist_352, dist_480, dist_720; |
584 | ||
717fd5b4 HV |
585 | if (format->pad) |
586 | return -EINVAL; | |
587 | ||
f5fe58fd | 588 | f->code = MEDIA_BUS_FMT_FIXED; |
cabc6508 HV |
589 | |
590 | dist_352 = abs(f->width - 352); | |
591 | dist_480 = abs(f->width - 480); | |
592 | dist_720 = abs(f->width - 720); | |
593 | if (dist_720 < dist_480) { | |
594 | f->width = 720; | |
595 | f->height = 576; | |
596 | } else if (dist_480 < dist_352) { | |
597 | f->width = 480; | |
598 | f->height = 576; | |
599 | } else { | |
600 | f->width = 352; | |
601 | if (abs(f->height - 576) < abs(f->height - 288)) | |
602 | f->height = 576; | |
603 | else | |
604 | f->height = 288; | |
605 | } | |
606 | f->field = V4L2_FIELD_INTERLACED; | |
607 | f->colorspace = V4L2_COLORSPACE_SMPTE170M; | |
cabc6508 | 608 | |
717fd5b4 HV |
609 | if (format->which == V4L2_SUBDEV_FORMAT_TRY) { |
610 | cfg->try_fmt = *f; | |
611 | return 0; | |
612 | } | |
51623ef9 | 613 | |
5b73e98c HV |
614 | /* |
615 | FIXME: translate and round width/height into EMPRESS | |
616 | subsample type: | |
617 | ||
618 | type | PAL | NTSC | |
619 | --------------------------- | |
620 | SIF | 352x288 | 352x240 | |
621 | 1/2 D1 | 352x576 | 352x480 | |
622 | 2/3 D1 | 480x576 | 480x480 | |
623 | D1 | 720x576 | 720x480 | |
624 | */ | |
625 | ||
717fd5b4 HV |
626 | if (f->code != MEDIA_BUS_FMT_FIXED) |
627 | return -EINVAL; | |
628 | ||
cabc6508 | 629 | if (f->width == 720) |
5b73e98c | 630 | h->video_format = SAA6752HS_VF_D1; |
cabc6508 | 631 | else if (f->width == 480) |
5b73e98c | 632 | h->video_format = SAA6752HS_VF_2_3_D1; |
cabc6508 HV |
633 | else if (f->height == 576) |
634 | h->video_format = SAA6752HS_VF_1_2_D1; | |
635 | else | |
636 | h->video_format = SAA6752HS_VF_SIF; | |
5b73e98c HV |
637 | return 0; |
638 | } | |
639 | ||
640 | static int saa6752hs_s_std(struct v4l2_subdev *sd, v4l2_std_id std) | |
641 | { | |
642 | struct saa6752hs_state *h = to_state(sd); | |
643 | ||
644 | h->standard = std; | |
645 | return 0; | |
646 | } | |
647 | ||
5b73e98c HV |
648 | /* ----------------------------------------------------------------------- */ |
649 | ||
bb732ccc HV |
650 | static const struct v4l2_ctrl_ops saa6752hs_ctrl_ops = { |
651 | .try_ctrl = saa6752hs_try_ctrl, | |
652 | .s_ctrl = saa6752hs_s_ctrl, | |
653 | }; | |
654 | ||
5b73e98c | 655 | static const struct v4l2_subdev_core_ops saa6752hs_core_ops = { |
5b73e98c | 656 | .init = saa6752hs_init, |
5b73e98c HV |
657 | }; |
658 | ||
659 | static const struct v4l2_subdev_video_ops saa6752hs_video_ops = { | |
8774bed9 | 660 | .s_std = saa6752hs_s_std, |
da298c6d HV |
661 | }; |
662 | ||
663 | static const struct v4l2_subdev_pad_ops saa6752hs_pad_ops = { | |
664 | .get_fmt = saa6752hs_get_fmt, | |
717fd5b4 | 665 | .set_fmt = saa6752hs_set_fmt, |
5b73e98c HV |
666 | }; |
667 | ||
668 | static const struct v4l2_subdev_ops saa6752hs_ops = { | |
669 | .core = &saa6752hs_core_ops, | |
5b73e98c | 670 | .video = &saa6752hs_video_ops, |
da298c6d | 671 | .pad = &saa6752hs_pad_ops, |
5b73e98c HV |
672 | }; |
673 | ||
e281db58 | 674 | static int saa6752hs_probe(struct i2c_client *client, |
5b73e98c | 675 | const struct i2c_device_id *id) |
e281db58 | 676 | { |
6af6e9c8 | 677 | struct saa6752hs_state *h; |
5b73e98c | 678 | struct v4l2_subdev *sd; |
bb732ccc | 679 | struct v4l2_ctrl_handler *hdl; |
e281db58 HV |
680 | u8 addr = 0x13; |
681 | u8 data[12]; | |
1da177e4 | 682 | |
e281db58 HV |
683 | v4l_info(client, "chip found @ 0x%x (%s)\n", |
684 | client->addr << 1, client->adapter->name); | |
6af6e9c8 AL |
685 | |
686 | h = devm_kzalloc(&client->dev, sizeof(*h), GFP_KERNEL); | |
e281db58 HV |
687 | if (h == NULL) |
688 | return -ENOMEM; | |
5b73e98c HV |
689 | sd = &h->sd; |
690 | v4l2_i2c_subdev_init(sd, client, &saa6752hs_ops); | |
1da177e4 | 691 | |
e281db58 HV |
692 | i2c_master_send(client, &addr, 1); |
693 | i2c_master_recv(client, data, sizeof(data)); | |
e281db58 HV |
694 | h->revision = (data[8] << 8) | data[9]; |
695 | h->has_ac3 = 0; | |
696 | if (h->revision == 0x0206) { | |
e281db58 | 697 | h->has_ac3 = 1; |
bb732ccc | 698 | v4l_info(client, "supports AC-3\n"); |
e281db58 HV |
699 | } |
700 | h->params = param_defaults; | |
bb732ccc HV |
701 | |
702 | hdl = &h->hdl; | |
703 | v4l2_ctrl_handler_init(hdl, 14); | |
704 | v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops, | |
705 | V4L2_CID_MPEG_AUDIO_ENCODING, | |
706 | h->has_ac3 ? V4L2_MPEG_AUDIO_ENCODING_AC3 : | |
707 | V4L2_MPEG_AUDIO_ENCODING_LAYER_2, | |
708 | 0x0d, V4L2_MPEG_AUDIO_ENCODING_LAYER_2); | |
709 | ||
710 | v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops, | |
711 | V4L2_CID_MPEG_AUDIO_L2_BITRATE, | |
712 | V4L2_MPEG_AUDIO_L2_BITRATE_384K, | |
713 | ~((1 << V4L2_MPEG_AUDIO_L2_BITRATE_256K) | | |
714 | (1 << V4L2_MPEG_AUDIO_L2_BITRATE_384K)), | |
715 | V4L2_MPEG_AUDIO_L2_BITRATE_256K); | |
716 | ||
717 | if (h->has_ac3) | |
718 | v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops, | |
719 | V4L2_CID_MPEG_AUDIO_AC3_BITRATE, | |
720 | V4L2_MPEG_AUDIO_AC3_BITRATE_384K, | |
721 | ~((1 << V4L2_MPEG_AUDIO_AC3_BITRATE_256K) | | |
722 | (1 << V4L2_MPEG_AUDIO_AC3_BITRATE_384K)), | |
723 | V4L2_MPEG_AUDIO_AC3_BITRATE_256K); | |
724 | ||
725 | v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops, | |
726 | V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ, | |
727 | V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000, | |
728 | ~(1 << V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000), | |
729 | V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000); | |
730 | ||
731 | v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops, | |
732 | V4L2_CID_MPEG_VIDEO_ENCODING, | |
733 | V4L2_MPEG_VIDEO_ENCODING_MPEG_2, | |
734 | ~(1 << V4L2_MPEG_VIDEO_ENCODING_MPEG_2), | |
735 | V4L2_MPEG_VIDEO_ENCODING_MPEG_2); | |
736 | ||
737 | v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops, | |
738 | V4L2_CID_MPEG_VIDEO_ASPECT, | |
739 | V4L2_MPEG_VIDEO_ASPECT_16x9, 0x01, | |
740 | V4L2_MPEG_VIDEO_ASPECT_4x3); | |
741 | ||
742 | h->video_bitrate_peak = v4l2_ctrl_new_std(hdl, &saa6752hs_ctrl_ops, | |
743 | V4L2_CID_MPEG_VIDEO_BITRATE_PEAK, | |
744 | 1000000, 27000000, 1000, 8000000); | |
745 | ||
746 | v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops, | |
747 | V4L2_CID_MPEG_STREAM_TYPE, | |
748 | V4L2_MPEG_STREAM_TYPE_MPEG2_TS, | |
749 | ~(1 << V4L2_MPEG_STREAM_TYPE_MPEG2_TS), | |
750 | V4L2_MPEG_STREAM_TYPE_MPEG2_TS); | |
751 | ||
752 | h->video_bitrate_mode = v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops, | |
753 | V4L2_CID_MPEG_VIDEO_BITRATE_MODE, | |
754 | V4L2_MPEG_VIDEO_BITRATE_MODE_CBR, 0, | |
755 | V4L2_MPEG_VIDEO_BITRATE_MODE_VBR); | |
756 | h->video_bitrate = v4l2_ctrl_new_std(hdl, &saa6752hs_ctrl_ops, | |
757 | V4L2_CID_MPEG_VIDEO_BITRATE, 1000000, 27000000, 1000, 6000000); | |
758 | v4l2_ctrl_new_std(hdl, &saa6752hs_ctrl_ops, | |
759 | V4L2_CID_MPEG_STREAM_PID_PMT, 0, (1 << 14) - 1, 1, 16); | |
760 | v4l2_ctrl_new_std(hdl, &saa6752hs_ctrl_ops, | |
761 | V4L2_CID_MPEG_STREAM_PID_AUDIO, 0, (1 << 14) - 1, 1, 260); | |
762 | v4l2_ctrl_new_std(hdl, &saa6752hs_ctrl_ops, | |
763 | V4L2_CID_MPEG_STREAM_PID_VIDEO, 0, (1 << 14) - 1, 1, 256); | |
764 | v4l2_ctrl_new_std(hdl, &saa6752hs_ctrl_ops, | |
765 | V4L2_CID_MPEG_STREAM_PID_PCR, 0, (1 << 14) - 1, 1, 259); | |
766 | sd->ctrl_handler = hdl; | |
767 | if (hdl->error) { | |
768 | int err = hdl->error; | |
769 | ||
770 | v4l2_ctrl_handler_free(hdl); | |
bb732ccc HV |
771 | return err; |
772 | } | |
773 | v4l2_ctrl_cluster(3, &h->video_bitrate_mode); | |
774 | v4l2_ctrl_handler_setup(hdl); | |
e281db58 | 775 | h->standard = 0; /* Assume 625 input lines */ |
e281db58 | 776 | return 0; |
1da177e4 LT |
777 | } |
778 | ||
e281db58 | 779 | static int saa6752hs_remove(struct i2c_client *client) |
1da177e4 | 780 | { |
5b73e98c HV |
781 | struct v4l2_subdev *sd = i2c_get_clientdata(client); |
782 | ||
783 | v4l2_device_unregister_subdev(sd); | |
bb732ccc | 784 | v4l2_ctrl_handler_free(&to_state(sd)->hdl); |
e281db58 | 785 | return 0; |
1da177e4 LT |
786 | } |
787 | ||
e281db58 HV |
788 | static const struct i2c_device_id saa6752hs_id[] = { |
789 | { "saa6752hs", 0 }, | |
790 | { } | |
791 | }; | |
792 | MODULE_DEVICE_TABLE(i2c, saa6752hs_id); | |
793 | ||
099bd5e3 HV |
794 | static struct i2c_driver saa6752hs_driver = { |
795 | .driver = { | |
099bd5e3 HV |
796 | .name = "saa6752hs", |
797 | }, | |
798 | .probe = saa6752hs_probe, | |
799 | .remove = saa6752hs_remove, | |
800 | .id_table = saa6752hs_id, | |
e281db58 | 801 | }; |
1da177e4 | 802 | |
c6e8d86f | 803 | module_i2c_driver(saa6752hs_driver); |