blob: a95878004f937b2bdacf8e283921874cc8d646fb [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001#include <linux/module.h>
2#include <linux/kernel.h>
3#include <linux/sched.h>
4#include <linux/string.h>
5#include <linux/timer.h>
6#include <linux/delay.h>
7#include <linux/errno.h>
8#include <linux/slab.h>
9#include <linux/poll.h>
10#include <linux/i2c.h>
11#include <linux/types.h>
Mauro Carvalho Chehabcab462f2006-01-09 15:53:26 -020012#include <linux/videodev2.h>
13#include <media/v4l2-common.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070014#include <linux/init.h>
15#include <linux/crc32.h>
16
Linus Torvalds1da177e2005-04-16 15:20:36 -070017
18#define MPEG_VIDEO_TARGET_BITRATE_MAX 27000
19#define MPEG_VIDEO_MAX_BITRATE_MAX 27000
20#define MPEG_TOTAL_TARGET_BITRATE_MAX 27000
21#define MPEG_PID_MAX ((1 << 14) - 1)
22
23/* Addresses to scan */
24static unsigned short normal_i2c[] = {0x20, I2C_CLIENT_END};
Linus Torvalds1da177e2005-04-16 15:20:36 -070025I2C_CLIENT_INSMOD;
26
27MODULE_DESCRIPTION("device driver for saa6752hs MPEG2 encoder");
28MODULE_AUTHOR("Andrew de Quincey");
29MODULE_LICENSE("GPL");
30
31static struct i2c_driver driver;
32static struct i2c_client client_template;
33
Frederic CAND0a4c9c92005-05-05 16:15:52 -070034enum saa6752hs_videoformat {
35 SAA6752HS_VF_D1 = 0, /* standard D1 video format: 720x576 */
36 SAA6752HS_VF_2_3_D1 = 1,/* 2/3D1 video format: 480x576 */
37 SAA6752HS_VF_1_2_D1 = 2,/* 1/2D1 video format: 352x576 */
38 SAA6752HS_VF_SIF = 3, /* SIF video format: 352x288 */
39 SAA6752HS_VF_UNKNOWN,
40};
41
42static const struct v4l2_format v4l2_format_table[] =
43{
Mauro Carvalho Chehabac19ecc2005-06-23 22:05:09 -070044 [SAA6752HS_VF_D1] =
45 { .fmt = { .pix = { .width = 720, .height = 576 }}},
46 [SAA6752HS_VF_2_3_D1] =
47 { .fmt = { .pix = { .width = 480, .height = 576 }}},
48 [SAA6752HS_VF_1_2_D1] =
49 { .fmt = { .pix = { .width = 352, .height = 576 }}},
50 [SAA6752HS_VF_SIF] =
51 { .fmt = { .pix = { .width = 352, .height = 288 }}},
52 [SAA6752HS_VF_UNKNOWN] =
53 { .fmt = { .pix = { .width = 0, .height = 0}}},
Frederic CAND0a4c9c92005-05-05 16:15:52 -070054};
55
Linus Torvalds1da177e2005-04-16 15:20:36 -070056struct saa6752hs_state {
57 struct i2c_client client;
58 struct v4l2_mpeg_compression params;
Frederic CAND0a4c9c92005-05-05 16:15:52 -070059 enum saa6752hs_videoformat video_format;
Robert W. Boone9b715212005-11-08 21:36:45 -080060 v4l2_std_id standard;
Linus Torvalds1da177e2005-04-16 15:20:36 -070061};
62
63enum saa6752hs_command {
64 SAA6752HS_COMMAND_RESET = 0,
Trent Piepho657de3c2006-06-20 00:30:57 -030065 SAA6752HS_COMMAND_STOP = 1,
66 SAA6752HS_COMMAND_START = 2,
67 SAA6752HS_COMMAND_PAUSE = 3,
68 SAA6752HS_COMMAND_RECONFIGURE = 4,
69 SAA6752HS_COMMAND_SLEEP = 5,
Linus Torvalds1da177e2005-04-16 15:20:36 -070070 SAA6752HS_COMMAND_RECONFIGURE_FORCE = 6,
71
72 SAA6752HS_COMMAND_MAX
73};
74
75/* ---------------------------------------------------------------------- */
76
77static u8 PAT[] = {
Robert W. Boone9b715212005-11-08 21:36:45 -080078 0xc2, /* i2c register */
79 0x00, /* table number for encoder */
Linus Torvalds1da177e2005-04-16 15:20:36 -070080
Robert W. Boone9b715212005-11-08 21:36:45 -080081 0x47, /* sync */
82 0x40, 0x00, /* transport_error_indicator(0), payload_unit_start(1), transport_priority(0), pid(0) */
83 0x10, /* transport_scrambling_control(00), adaptation_field_control(01), continuity_counter(0) */
Linus Torvalds1da177e2005-04-16 15:20:36 -070084
Robert W. Boone9b715212005-11-08 21:36:45 -080085 0x00, /* PSI pointer to start of table */
Linus Torvalds1da177e2005-04-16 15:20:36 -070086
Robert W. Boone9b715212005-11-08 21:36:45 -080087 0x00, /* tid(0) */
88 0xb0, 0x0d, /* section_syntax_indicator(1), section_length(13) */
Linus Torvalds1da177e2005-04-16 15:20:36 -070089
Robert W. Boone9b715212005-11-08 21:36:45 -080090 0x00, 0x01, /* transport_stream_id(1) */
Linus Torvalds1da177e2005-04-16 15:20:36 -070091
Robert W. Boone9b715212005-11-08 21:36:45 -080092 0xc1, /* version_number(0), current_next_indicator(1) */
Linus Torvalds1da177e2005-04-16 15:20:36 -070093
Robert W. Boone9b715212005-11-08 21:36:45 -080094 0x00, 0x00, /* section_number(0), last_section_number(0) */
Linus Torvalds1da177e2005-04-16 15:20:36 -070095
Robert W. Boone9b715212005-11-08 21:36:45 -080096 0x00, 0x01, /* program_number(1) */
Linus Torvalds1da177e2005-04-16 15:20:36 -070097
Robert W. Boone9b715212005-11-08 21:36:45 -080098 0xe0, 0x00, /* PMT PID */
Linus Torvalds1da177e2005-04-16 15:20:36 -070099
Robert W. Boone9b715212005-11-08 21:36:45 -0800100 0x00, 0x00, 0x00, 0x00 /* CRC32 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700101};
102
103static u8 PMT[] = {
Robert W. Boone9b715212005-11-08 21:36:45 -0800104 0xc2, /* i2c register */
105 0x01, /* table number for encoder */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700106
Robert W. Boone9b715212005-11-08 21:36:45 -0800107 0x47, /* sync */
108 0x40, 0x00, /* transport_error_indicator(0), payload_unit_start(1), transport_priority(0), pid */
109 0x10, /* transport_scrambling_control(00), adaptation_field_control(01), continuity_counter(0) */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700110
Robert W. Boone9b715212005-11-08 21:36:45 -0800111 0x00, /* PSI pointer to start of table */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700112
Robert W. Boone9b715212005-11-08 21:36:45 -0800113 0x02, /* tid(2) */
114 0xb0, 0x17, /* section_syntax_indicator(1), section_length(23) */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700115
Robert W. Boone9b715212005-11-08 21:36:45 -0800116 0x00, 0x01, /* program_number(1) */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700117
Robert W. Boone9b715212005-11-08 21:36:45 -0800118 0xc1, /* version_number(0), current_next_indicator(1) */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700119
Robert W. Boone9b715212005-11-08 21:36:45 -0800120 0x00, 0x00, /* section_number(0), last_section_number(0) */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700121
Robert W. Boone9b715212005-11-08 21:36:45 -0800122 0xe0, 0x00, /* PCR_PID */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700123
Robert W. Boone9b715212005-11-08 21:36:45 -0800124 0xf0, 0x00, /* program_info_length(0) */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125
Robert W. Boone9b715212005-11-08 21:36:45 -0800126 0x02, 0xe0, 0x00, 0xf0, 0x00, /* video stream type(2), pid */
127 0x04, 0xe0, 0x00, 0xf0, 0x00, /* audio stream type(4), pid */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128
Robert W. Boone9b715212005-11-08 21:36:45 -0800129 0x00, 0x00, 0x00, 0x00 /* CRC32 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700130};
131
132static struct v4l2_mpeg_compression param_defaults =
133{
134 .st_type = V4L2_MPEG_TS_2,
135 .st_bitrate = {
136 .mode = V4L2_BITRATE_CBR,
137 .target = 7000,
138 },
139
140 .ts_pid_pmt = 16,
141 .ts_pid_video = 260,
142 .ts_pid_audio = 256,
143 .ts_pid_pcr = 259,
144
145 .vi_type = V4L2_MPEG_VI_2,
146 .vi_aspect_ratio = V4L2_MPEG_ASPECT_4_3,
147 .vi_bitrate = {
148 .mode = V4L2_BITRATE_VBR,
149 .target = 4000,
150 .max = 6000,
151 },
152
153 .au_type = V4L2_MPEG_AU_2_II,
154 .au_bitrate = {
155 .mode = V4L2_BITRATE_CBR,
156 .target = 256,
157 },
158
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159};
160
161/* ---------------------------------------------------------------------- */
162
163static int saa6752hs_chip_command(struct i2c_client* client,
164 enum saa6752hs_command command)
165{
166 unsigned char buf[3];
167 unsigned long timeout;
168 int status = 0;
169
Robert W. Boone9b715212005-11-08 21:36:45 -0800170 /* execute the command */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700171 switch(command) {
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800172 case SAA6752HS_COMMAND_RESET:
173 buf[0] = 0x00;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174 break;
175
176 case SAA6752HS_COMMAND_STOP:
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800177 buf[0] = 0x03;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700178 break;
179
180 case SAA6752HS_COMMAND_START:
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800181 buf[0] = 0x02;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700182 break;
183
184 case SAA6752HS_COMMAND_PAUSE:
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800185 buf[0] = 0x04;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700186 break;
187
188 case SAA6752HS_COMMAND_RECONFIGURE:
189 buf[0] = 0x05;
190 break;
191
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800192 case SAA6752HS_COMMAND_SLEEP:
193 buf[0] = 0x06;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194 break;
195
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800196 case SAA6752HS_COMMAND_RECONFIGURE_FORCE:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700197 buf[0] = 0x07;
198 break;
199
200 default:
201 return -EINVAL;
202 }
203
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800204 /* set it and wait for it to be so */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700205 i2c_master_send(client, buf, 1);
206 timeout = jiffies + HZ * 3;
207 for (;;) {
Robert W. Boone9b715212005-11-08 21:36:45 -0800208 /* get the current status */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700209 buf[0] = 0x10;
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800210 i2c_master_send(client, buf, 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700211 i2c_master_recv(client, buf, 1);
212
213 if (!(buf[0] & 0x20))
214 break;
215 if (time_after(jiffies,timeout)) {
216 status = -ETIMEDOUT;
217 break;
218 }
219
Linus Torvalds1da177e2005-04-16 15:20:36 -0700220 msleep(10);
221 }
222
Robert W. Boone9b715212005-11-08 21:36:45 -0800223 /* delay a bit to let encoder settle */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700224 msleep(50);
225
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800226 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700227}
228
229
230static int saa6752hs_set_bitrate(struct i2c_client* client,
231 struct v4l2_mpeg_compression* params)
232{
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800233 u8 buf[3];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700234
Robert W. Boone9b715212005-11-08 21:36:45 -0800235 /* set the bitrate mode */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700236 buf[0] = 0x71;
237 buf[1] = (params->vi_bitrate.mode == V4L2_BITRATE_VBR) ? 0 : 1;
238 i2c_master_send(client, buf, 2);
239
Robert W. Boone9b715212005-11-08 21:36:45 -0800240 /* set the video bitrate */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700241 if (params->vi_bitrate.mode == V4L2_BITRATE_VBR) {
Robert W. Boone9b715212005-11-08 21:36:45 -0800242 /* set the target bitrate */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700243 buf[0] = 0x80;
Trent Piepho657de3c2006-06-20 00:30:57 -0300244 buf[1] = params->vi_bitrate.target >> 8;
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800245 buf[2] = params->vi_bitrate.target & 0xff;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246 i2c_master_send(client, buf, 3);
247
Robert W. Boone9b715212005-11-08 21:36:45 -0800248 /* set the max bitrate */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700249 buf[0] = 0x81;
Trent Piepho657de3c2006-06-20 00:30:57 -0300250 buf[1] = params->vi_bitrate.max >> 8;
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800251 buf[2] = params->vi_bitrate.max & 0xff;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700252 i2c_master_send(client, buf, 3);
253 } else {
Robert W. Boone9b715212005-11-08 21:36:45 -0800254 /* set the target bitrate (no max bitrate for CBR) */
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800255 buf[0] = 0x81;
Trent Piepho657de3c2006-06-20 00:30:57 -0300256 buf[1] = params->vi_bitrate.target >> 8;
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800257 buf[2] = params->vi_bitrate.target & 0xff;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700258 i2c_master_send(client, buf, 3);
259 }
260
Robert W. Boone9b715212005-11-08 21:36:45 -0800261 /* set the audio bitrate */
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800262 buf[0] = 0x94;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700263 buf[1] = (256 == params->au_bitrate.target) ? 0 : 1;
264 i2c_master_send(client, buf, 2);
265
Robert W. Boone9b715212005-11-08 21:36:45 -0800266 /* set the total bitrate */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700267 buf[0] = 0xb1;
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800268 buf[1] = params->st_bitrate.target >> 8;
269 buf[2] = params->st_bitrate.target & 0xff;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700270 i2c_master_send(client, buf, 3);
271
Linus Torvalds1da177e2005-04-16 15:20:36 -0700272 return 0;
273}
274
Frederic CAND0a4c9c92005-05-05 16:15:52 -0700275static void saa6752hs_set_subsampling(struct i2c_client* client,
276 struct v4l2_format* f)
277{
278 struct saa6752hs_state *h = i2c_get_clientdata(client);
279 int dist_352, dist_480, dist_720;
280
281 /*
282 FIXME: translate and round width/height into EMPRESS
283 subsample type:
284
285 type | PAL | NTSC
286 ---------------------------
287 SIF | 352x288 | 352x240
288 1/2 D1 | 352x576 | 352x480
289 2/3 D1 | 480x576 | 480x480
290 D1 | 720x576 | 720x480
291 */
292
293 dist_352 = abs(f->fmt.pix.width - 352);
294 dist_480 = abs(f->fmt.pix.width - 480);
295 dist_720 = abs(f->fmt.pix.width - 720);
296 if (dist_720 < dist_480) {
297 f->fmt.pix.width = 720;
298 f->fmt.pix.height = 576;
299 h->video_format = SAA6752HS_VF_D1;
300 }
301 else if (dist_480 < dist_352) {
302 f->fmt.pix.width = 480;
303 f->fmt.pix.height = 576;
304 h->video_format = SAA6752HS_VF_2_3_D1;
305 }
306 else {
307 f->fmt.pix.width = 352;
308 if (abs(f->fmt.pix.height - 576) <
309 abs(f->fmt.pix.height - 288)) {
310 f->fmt.pix.height = 576;
311 h->video_format = SAA6752HS_VF_1_2_D1;
312 }
313 else {
314 f->fmt.pix.height = 288;
315 h->video_format = SAA6752HS_VF_SIF;
316 }
317 }
318}
319
Linus Torvalds1da177e2005-04-16 15:20:36 -0700320
321static void saa6752hs_set_params(struct i2c_client* client,
322 struct v4l2_mpeg_compression* params)
323{
324 struct saa6752hs_state *h = i2c_get_clientdata(client);
325
326 /* check PIDs */
327 if (params->ts_pid_pmt <= MPEG_PID_MAX)
328 h->params.ts_pid_pmt = params->ts_pid_pmt;
329 if (params->ts_pid_pcr <= MPEG_PID_MAX)
330 h->params.ts_pid_pcr = params->ts_pid_pcr;
331 if (params->ts_pid_video <= MPEG_PID_MAX)
332 h->params.ts_pid_video = params->ts_pid_video;
333 if (params->ts_pid_audio <= MPEG_PID_MAX)
334 h->params.ts_pid_audio = params->ts_pid_audio;
335
336 /* check bitrate parameters */
337 if ((params->vi_bitrate.mode == V4L2_BITRATE_CBR) ||
338 (params->vi_bitrate.mode == V4L2_BITRATE_VBR))
339 h->params.vi_bitrate.mode = params->vi_bitrate.mode;
340 if (params->vi_bitrate.mode != V4L2_BITRATE_NONE)
341 h->params.st_bitrate.target = params->st_bitrate.target;
342 if (params->vi_bitrate.mode != V4L2_BITRATE_NONE)
343 h->params.vi_bitrate.target = params->vi_bitrate.target;
344 if (params->vi_bitrate.mode == V4L2_BITRATE_VBR)
345 h->params.vi_bitrate.max = params->vi_bitrate.max;
346 if (params->au_bitrate.mode != V4L2_BITRATE_NONE)
347 h->params.au_bitrate.target = params->au_bitrate.target;
348
349 /* aspect ratio */
350 if (params->vi_aspect_ratio == V4L2_MPEG_ASPECT_4_3 ||
351 params->vi_aspect_ratio == V4L2_MPEG_ASPECT_16_9)
352 h->params.vi_aspect_ratio = params->vi_aspect_ratio;
353
354 /* range checks */
355 if (h->params.st_bitrate.target > MPEG_TOTAL_TARGET_BITRATE_MAX)
356 h->params.st_bitrate.target = MPEG_TOTAL_TARGET_BITRATE_MAX;
357 if (h->params.vi_bitrate.target > MPEG_VIDEO_TARGET_BITRATE_MAX)
358 h->params.vi_bitrate.target = MPEG_VIDEO_TARGET_BITRATE_MAX;
359 if (h->params.vi_bitrate.max > MPEG_VIDEO_MAX_BITRATE_MAX)
360 h->params.vi_bitrate.max = MPEG_VIDEO_MAX_BITRATE_MAX;
361 if (h->params.au_bitrate.target <= 256)
362 h->params.au_bitrate.target = 256;
363 else
364 h->params.au_bitrate.target = 384;
365}
366
367static int saa6752hs_init(struct i2c_client* client)
368{
369 unsigned char buf[9], buf2[4];
370 struct saa6752hs_state *h;
371 u32 crc;
372 unsigned char localPAT[256];
373 unsigned char localPMT[256];
374
375 h = i2c_get_clientdata(client);
376
Robert W. Boone9b715212005-11-08 21:36:45 -0800377 /* Set video format - must be done first as it resets other settings */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700378 buf[0] = 0x41;
Frederic CAND0a4c9c92005-05-05 16:15:52 -0700379 buf[1] = h->video_format;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700380 i2c_master_send(client, buf, 2);
381
Robert W. Boone9b715212005-11-08 21:36:45 -0800382 /* Set number of lines in input signal */
383 buf[0] = 0x40;
384 buf[1] = 0x00;
385 if (h->standard & V4L2_STD_525_60)
386 buf[1] = 0x01;
387 i2c_master_send(client, buf, 2);
388
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800389 /* set bitrate */
390 saa6752hs_set_bitrate(client, &h->params);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700391
Robert W. Boone9b715212005-11-08 21:36:45 -0800392 /* Set GOP structure {3, 13} */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700393 buf[0] = 0x72;
394 buf[1] = 0x03;
395 buf[2] = 0x0D;
396 i2c_master_send(client,buf,3);
397
Trent Piepho657de3c2006-06-20 00:30:57 -0300398 /* Set minimum Q-scale {4} */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700399 buf[0] = 0x82;
400 buf[1] = 0x04;
401 i2c_master_send(client,buf,2);
402
Trent Piepho657de3c2006-06-20 00:30:57 -0300403 /* Set maximum Q-scale {12} */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700404 buf[0] = 0x83;
405 buf[1] = 0x0C;
406 i2c_master_send(client,buf,2);
407
Trent Piepho657de3c2006-06-20 00:30:57 -0300408 /* Set Output Protocol */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700409 buf[0] = 0xD0;
410 buf[1] = 0x81;
411 i2c_master_send(client,buf,2);
412
Trent Piepho657de3c2006-06-20 00:30:57 -0300413 /* Set video output stream format {TS} */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700414 buf[0] = 0xB0;
415 buf[1] = 0x05;
416 i2c_master_send(client,buf,2);
417
418 /* compute PAT */
419 memcpy(localPAT, PAT, sizeof(PAT));
420 localPAT[17] = 0xe0 | ((h->params.ts_pid_pmt >> 8) & 0x0f);
421 localPAT[18] = h->params.ts_pid_pmt & 0xff;
422 crc = crc32_be(~0, &localPAT[7], sizeof(PAT) - 7 - 4);
423 localPAT[sizeof(PAT) - 4] = (crc >> 24) & 0xFF;
424 localPAT[sizeof(PAT) - 3] = (crc >> 16) & 0xFF;
425 localPAT[sizeof(PAT) - 2] = (crc >> 8) & 0xFF;
426 localPAT[sizeof(PAT) - 1] = crc & 0xFF;
427
428 /* compute PMT */
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800429 memcpy(localPMT, PMT, sizeof(PMT));
430 localPMT[3] = 0x40 | ((h->params.ts_pid_pmt >> 8) & 0x0f);
431 localPMT[4] = h->params.ts_pid_pmt & 0xff;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700432 localPMT[15] = 0xE0 | ((h->params.ts_pid_pcr >> 8) & 0x0F);
433 localPMT[16] = h->params.ts_pid_pcr & 0xFF;
434 localPMT[20] = 0xE0 | ((h->params.ts_pid_video >> 8) & 0x0F);
435 localPMT[21] = h->params.ts_pid_video & 0xFF;
436 localPMT[25] = 0xE0 | ((h->params.ts_pid_audio >> 8) & 0x0F);
437 localPMT[26] = h->params.ts_pid_audio & 0xFF;
438 crc = crc32_be(~0, &localPMT[7], sizeof(PMT) - 7 - 4);
439 localPMT[sizeof(PMT) - 4] = (crc >> 24) & 0xFF;
440 localPMT[sizeof(PMT) - 3] = (crc >> 16) & 0xFF;
441 localPMT[sizeof(PMT) - 2] = (crc >> 8) & 0xFF;
442 localPMT[sizeof(PMT) - 1] = crc & 0xFF;
443
Trent Piepho657de3c2006-06-20 00:30:57 -0300444 /* Set Audio PID */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700445 buf[0] = 0xC1;
446 buf[1] = (h->params.ts_pid_audio >> 8) & 0xFF;
447 buf[2] = h->params.ts_pid_audio & 0xFF;
448 i2c_master_send(client,buf,3);
449
Robert W. Boone9b715212005-11-08 21:36:45 -0800450 /* Set Video PID */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700451 buf[0] = 0xC0;
452 buf[1] = (h->params.ts_pid_video >> 8) & 0xFF;
453 buf[2] = h->params.ts_pid_video & 0xFF;
454 i2c_master_send(client,buf,3);
455
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800456 /* Set PCR PID */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700457 buf[0] = 0xC4;
458 buf[1] = (h->params.ts_pid_pcr >> 8) & 0xFF;
459 buf[2] = h->params.ts_pid_pcr & 0xFF;
460 i2c_master_send(client,buf,3);
461
Robert W. Boone9b715212005-11-08 21:36:45 -0800462 /* Send SI tables */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700463 i2c_master_send(client,localPAT,sizeof(PAT));
464 i2c_master_send(client,localPMT,sizeof(PMT));
465
Robert W. Boone9b715212005-11-08 21:36:45 -0800466 /* mute then unmute audio. This removes buzzing artefacts */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700467 buf[0] = 0xa4;
468 buf[1] = 1;
469 i2c_master_send(client, buf, 2);
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800470 buf[1] = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700471 i2c_master_send(client, buf, 2);
472
Robert W. Boone9b715212005-11-08 21:36:45 -0800473 /* start it going */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700474 saa6752hs_chip_command(client, SAA6752HS_COMMAND_START);
475
Robert W. Boone9b715212005-11-08 21:36:45 -0800476 /* readout current state */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700477 buf[0] = 0xE1;
478 buf[1] = 0xA7;
479 buf[2] = 0xFE;
480 buf[3] = 0x82;
481 buf[4] = 0xB0;
482 i2c_master_send(client, buf, 5);
483 i2c_master_recv(client, buf2, 4);
484
Robert W. Boone9b715212005-11-08 21:36:45 -0800485 /* change aspect ratio */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700486 buf[0] = 0xE0;
487 buf[1] = 0xA7;
488 buf[2] = 0xFE;
489 buf[3] = 0x82;
490 buf[4] = 0xB0;
491 buf[5] = buf2[0];
492 switch(h->params.vi_aspect_ratio) {
493 case V4L2_MPEG_ASPECT_16_9:
494 buf[6] = buf2[1] | 0x40;
495 break;
496 case V4L2_MPEG_ASPECT_4_3:
497 default:
498 buf[6] = buf2[1] & 0xBF;
499 break;
500 break;
501 }
502 buf[7] = buf2[2];
503 buf[8] = buf2[3];
504 i2c_master_send(client, buf, 9);
505
Linus Torvalds1da177e2005-04-16 15:20:36 -0700506 return 0;
507}
508
509static int saa6752hs_attach(struct i2c_adapter *adap, int addr, int kind)
510{
511 struct saa6752hs_state *h;
512
Linus Torvalds1da177e2005-04-16 15:20:36 -0700513
Panagiotis Issaris74081872006-01-11 19:40:56 -0200514 if (NULL == (h = kzalloc(sizeof(*h), GFP_KERNEL)))
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800515 return -ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700516 h->client = client_template;
517 h->params = param_defaults;
518 h->client.adapter = adap;
519 h->client.addr = addr;
520
Robert W. Boone9b715212005-11-08 21:36:45 -0800521 /* Assume 625 input lines */
522 h->standard = 0;
523
Linus Torvalds1da177e2005-04-16 15:20:36 -0700524 i2c_set_clientdata(&h->client, h);
Mauro Carvalho Chehabafd1a0c2005-12-12 00:37:27 -0800525 i2c_attach_client(&h->client);
Mauro Carvalho Chehab674434c2005-12-12 00:37:28 -0800526
Mauro Carvalho Chehabcab462f2006-01-09 15:53:26 -0200527 v4l_info(&h->client,"saa6752hs: chip found @ 0x%x\n", addr<<1);
528
Linus Torvalds1da177e2005-04-16 15:20:36 -0700529 return 0;
530}
531
532static int saa6752hs_probe(struct i2c_adapter *adap)
533{
534 if (adap->class & I2C_CLASS_TV_ANALOG)
535 return i2c_probe(adap, &addr_data, saa6752hs_attach);
536 return 0;
537}
538
539static int saa6752hs_detach(struct i2c_client *client)
540{
541 struct saa6752hs_state *h;
542
543 h = i2c_get_clientdata(client);
544 i2c_detach_client(client);
545 kfree(h);
546 return 0;
547}
548
549static int
550saa6752hs_command(struct i2c_client *client, unsigned int cmd, void *arg)
551{
552 struct saa6752hs_state *h = i2c_get_clientdata(client);
553 struct v4l2_mpeg_compression *params = arg;
554 int err = 0;
555
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800556 switch (cmd) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700557 case VIDIOC_S_MPEGCOMP:
558 if (NULL == params) {
559 /* apply settings and start encoder */
560 saa6752hs_init(client);
561 break;
562 }
563 saa6752hs_set_params(client, params);
564 /* fall through */
565 case VIDIOC_G_MPEGCOMP:
566 *params = h->params;
567 break;
Frederic CAND0a4c9c92005-05-05 16:15:52 -0700568 case VIDIOC_G_FMT:
569 {
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800570 struct v4l2_format *f = arg;
Frederic CAND0a4c9c92005-05-05 16:15:52 -0700571
572 if (h->video_format == SAA6752HS_VF_UNKNOWN)
573 h->video_format = SAA6752HS_VF_D1;
574 f->fmt.pix.width =
575 v4l2_format_table[h->video_format].fmt.pix.width;
576 f->fmt.pix.height =
577 v4l2_format_table[h->video_format].fmt.pix.height;
578 break ;
579 }
580 case VIDIOC_S_FMT:
581 {
582 struct v4l2_format *f = arg;
583
584 saa6752hs_set_subsampling(client, f);
585 break;
586 }
Robert W. Boone9b715212005-11-08 21:36:45 -0800587 case VIDIOC_S_STD:
588 h->standard = *((v4l2_std_id *) arg);
589 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700590 default:
591 /* nothing */
592 break;
593 }
594
595 return err;
596}
597
598/* ----------------------------------------------------------------------- */
599
600static struct i2c_driver driver = {
Laurent Riffard604f28e2005-11-26 20:43:39 +0100601 .driver = {
Mauro Carvalho Chehabcab462f2006-01-09 15:53:26 -0200602 .name = "saa6752hs",
Laurent Riffard604f28e2005-11-26 20:43:39 +0100603 },
Mauro Carvalho Chehabafd1a0c2005-12-12 00:37:27 -0800604 .id = I2C_DRIVERID_SAA6752HS,
Mauro Carvalho Chehabafd1a0c2005-12-12 00:37:27 -0800605 .attach_adapter = saa6752hs_probe,
606 .detach_client = saa6752hs_detach,
607 .command = saa6752hs_command,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700608};
609
610static struct i2c_client client_template =
611{
Jean Delvarefae91e72005-08-15 19:57:04 +0200612 .name = "saa6752hs",
Mauro Carvalho Chehabafd1a0c2005-12-12 00:37:27 -0800613 .driver = &driver,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700614};
615
616static int __init saa6752hs_init_module(void)
617{
618 return i2c_add_driver(&driver);
619}
620
621static void __exit saa6752hs_cleanup_module(void)
622{
623 i2c_del_driver(&driver);
624}
625
626module_init(saa6752hs_init_module);
627module_exit(saa6752hs_cleanup_module);
628
629/*
630 * Overrides for Emacs so that we follow Linus's tabbing style.
631 * ---------------------------------------------------------------------------
632 * Local variables:
633 * c-basic-offset: 8
634 * End:
635 */