1 /*
2 * av7110_av.c: audio and video MPEG decoder stuff
3 *
4 * Copyright (C) 1999-2002 Ralph Metzler
5 * & Marcus Metzler for convergence integrated media GmbH
6 *
7 * originally based on code by:
8 * Copyright (C) 1998,1999 Christian Theiss <mistert@rz.fh-augsburg.de>
9 *
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version 2
13 * of the License, or (at your option) any later version.
14 *
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
25 * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
26 *
27 *
28 * the project's page is at http://www.linuxtv.org/
29 */
30
31 #include <linux/types.h>
32 #include <linux/kernel.h>
33 #include <linux/string.h>
34 #include <linux/delay.h>
35 #include <linux/fs.h>
36
37 #include "av7110.h"
38 #include "av7110_hw.h"
39 #include "av7110_av.h"
40 #include "av7110_ipack.h"
41
42 /* MPEG-2 (ISO 13818 / H.222.0) stream types */
43 #define PROG_STREAM_MAP 0xBC
44 #define PRIVATE_STREAM1 0xBD
45 #define PADDING_STREAM 0xBE
46 #define PRIVATE_STREAM2 0xBF
47 #define AUDIO_STREAM_S 0xC0
48 #define AUDIO_STREAM_E 0xDF
49 #define VIDEO_STREAM_S 0xE0
50 #define VIDEO_STREAM_E 0xEF
51 #define ECM_STREAM 0xF0
52 #define EMM_STREAM 0xF1
53 #define DSM_CC_STREAM 0xF2
54 #define ISO13522_STREAM 0xF3
55 #define PROG_STREAM_DIR 0xFF
56
57 #define PTS_DTS_FLAGS 0xC0
58
59 //pts_dts flags
60 #define PTS_ONLY 0x80
61 #define PTS_DTS 0xC0
62 #define TS_SIZE 188
63 #define TRANS_ERROR 0x80
64 #define PAY_START 0x40
65 #define TRANS_PRIO 0x20
66 #define PID_MASK_HI 0x1F
67 //flags
68 #define TRANS_SCRMBL1 0x80
69 #define TRANS_SCRMBL2 0x40
70 #define ADAPT_FIELD 0x20
71 #define PAYLOAD 0x10
72 #define COUNT_MASK 0x0F
73
74 // adaptation flags
75 #define DISCON_IND 0x80
76 #define RAND_ACC_IND 0x40
77 #define ES_PRI_IND 0x20
78 #define PCR_FLAG 0x10
79 #define OPCR_FLAG 0x08
80 #define SPLICE_FLAG 0x04
81 #define TRANS_PRIV 0x02
82 #define ADAP_EXT_FLAG 0x01
83
84 // adaptation extension flags
85 #define LTW_FLAG 0x80
86 #define PIECE_RATE 0x40
87 #define SEAM_SPLICE 0x20
88
89
90 static void p_to_t(u8 const *buf, long int length, u16 pid,
91 u8 *counter, struct dvb_demux_feed *feed);
92 static int write_ts_to_decoder(struct av7110 *av7110, int type, const u8 *buf, size_t len);
93
94
av7110_record_cb(struct dvb_filter_pes2ts * p2t,u8 * buf,size_t len)95 int av7110_record_cb(struct dvb_filter_pes2ts *p2t, u8 *buf, size_t len)
96 {
97 struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *) p2t->priv;
98
99 if (!(dvbdmxfeed->ts_type & TS_PACKET))
100 return 0;
101 if (buf[3] == 0xe0) // video PES do not have a length in TS
102 buf[4] = buf[5] = 0;
103 if (dvbdmxfeed->ts_type & TS_PAYLOAD_ONLY)
104 return dvbdmxfeed->cb.ts(buf, len, NULL, 0,
105 &dvbdmxfeed->feed.ts, DMX_OK);
106 else
107 return dvb_filter_pes2ts(p2t, buf, len, 1);
108 }
109
dvb_filter_pes2ts_cb(void * priv,unsigned char * data)110 static int dvb_filter_pes2ts_cb(void *priv, unsigned char *data)
111 {
112 struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *) priv;
113
114 dvbdmxfeed->cb.ts(data, 188, NULL, 0,
115 &dvbdmxfeed->feed.ts, DMX_OK);
116 return 0;
117 }
118
av7110_av_start_record(struct av7110 * av7110,int av,struct dvb_demux_feed * dvbdmxfeed)119 int av7110_av_start_record(struct av7110 *av7110, int av,
120 struct dvb_demux_feed *dvbdmxfeed)
121 {
122 int ret = 0;
123 struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
124
125 dprintk(2, "av7110:%p, , dvb_demux_feed:%p\n", av7110, dvbdmxfeed);
126
127 if (av7110->playing || (av7110->rec_mode & av))
128 return -EBUSY;
129 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
130 dvbdmx->recording = 1;
131 av7110->rec_mode |= av;
132
133 switch (av7110->rec_mode) {
134 case RP_AUDIO:
135 dvb_filter_pes2ts_init(&av7110->p2t[0],
136 dvbdmx->pesfilter[0]->pid,
137 dvb_filter_pes2ts_cb,
138 (void *) dvbdmx->pesfilter[0]);
139 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AudioPES, 0);
140 break;
141
142 case RP_VIDEO:
143 dvb_filter_pes2ts_init(&av7110->p2t[1],
144 dvbdmx->pesfilter[1]->pid,
145 dvb_filter_pes2ts_cb,
146 (void *) dvbdmx->pesfilter[1]);
147 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, VideoPES, 0);
148 break;
149
150 case RP_AV:
151 dvb_filter_pes2ts_init(&av7110->p2t[0],
152 dvbdmx->pesfilter[0]->pid,
153 dvb_filter_pes2ts_cb,
154 (void *) dvbdmx->pesfilter[0]);
155 dvb_filter_pes2ts_init(&av7110->p2t[1],
156 dvbdmx->pesfilter[1]->pid,
157 dvb_filter_pes2ts_cb,
158 (void *) dvbdmx->pesfilter[1]);
159 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AV_PES, 0);
160 break;
161 }
162 return ret;
163 }
164
av7110_av_start_play(struct av7110 * av7110,int av)165 int av7110_av_start_play(struct av7110 *av7110, int av)
166 {
167 int ret = 0;
168 dprintk(2, "av7110:%p, \n", av7110);
169
170 if (av7110->rec_mode)
171 return -EBUSY;
172 if (av7110->playing & av)
173 return -EBUSY;
174
175 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
176
177 if (av7110->playing == RP_NONE) {
178 av7110_ipack_reset(&av7110->ipack[0]);
179 av7110_ipack_reset(&av7110->ipack[1]);
180 }
181
182 av7110->playing |= av;
183 switch (av7110->playing) {
184 case RP_AUDIO:
185 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AudioPES, 0);
186 break;
187 case RP_VIDEO:
188 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, VideoPES, 0);
189 av7110->sinfo = 0;
190 break;
191 case RP_AV:
192 av7110->sinfo = 0;
193 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AV_PES, 0);
194 break;
195 }
196 return ret;
197 }
198
av7110_av_stop(struct av7110 * av7110,int av)199 int av7110_av_stop(struct av7110 *av7110, int av)
200 {
201 int ret = 0;
202 dprintk(2, "av7110:%p, \n", av7110);
203
204 if (!(av7110->playing & av) && !(av7110->rec_mode & av))
205 return 0;
206 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
207 if (av7110->playing) {
208 av7110->playing &= ~av;
209 switch (av7110->playing) {
210 case RP_AUDIO:
211 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AudioPES, 0);
212 break;
213 case RP_VIDEO:
214 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, VideoPES, 0);
215 break;
216 case RP_NONE:
217 ret = av7110_set_vidmode(av7110, av7110->vidmode);
218 break;
219 }
220 } else {
221 av7110->rec_mode &= ~av;
222 switch (av7110->rec_mode) {
223 case RP_AUDIO:
224 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AudioPES, 0);
225 break;
226 case RP_VIDEO:
227 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, VideoPES, 0);
228 break;
229 case RP_NONE:
230 break;
231 }
232 }
233 return ret;
234 }
235
236
av7110_pes_play(void * dest,struct dvb_ringbuffer * buf,int dlen)237 int av7110_pes_play(void *dest, struct dvb_ringbuffer *buf, int dlen)
238 {
239 int len;
240 u32 sync;
241 u16 blen;
242
243 if (!dlen) {
244 wake_up(&buf->queue);
245 return -1;
246 }
247 while (1) {
248 len = dvb_ringbuffer_avail(buf);
249 if (len < 6) {
250 wake_up(&buf->queue);
251 return -1;
252 }
253 sync = DVB_RINGBUFFER_PEEK(buf, 0) << 24;
254 sync |= DVB_RINGBUFFER_PEEK(buf, 1) << 16;
255 sync |= DVB_RINGBUFFER_PEEK(buf, 2) << 8;
256 sync |= DVB_RINGBUFFER_PEEK(buf, 3);
257
258 if (((sync &~ 0x0f) == 0x000001e0) ||
259 ((sync &~ 0x1f) == 0x000001c0) ||
260 (sync == 0x000001bd))
261 break;
262 printk("resync\n");
263 DVB_RINGBUFFER_SKIP(buf, 1);
264 }
265 blen = DVB_RINGBUFFER_PEEK(buf, 4) << 8;
266 blen |= DVB_RINGBUFFER_PEEK(buf, 5);
267 blen += 6;
268 if (len < blen || blen > dlen) {
269 //printk("buffer empty - avail %d blen %u dlen %d\n", len, blen, dlen);
270 wake_up(&buf->queue);
271 return -1;
272 }
273
274 dvb_ringbuffer_read(buf, dest, (size_t) blen);
275
276 dprintk(2, "pread=0x%08lx, pwrite=0x%08lx\n",
277 (unsigned long) buf->pread, (unsigned long) buf->pwrite);
278 wake_up(&buf->queue);
279 return blen;
280 }
281
282
av7110_set_volume(struct av7110 * av7110,int volleft,int volright)283 int av7110_set_volume(struct av7110 *av7110, int volleft, int volright)
284 {
285 int err, vol, val, balance = 0;
286
287 dprintk(2, "av7110:%p, \n", av7110);
288
289 av7110->mixer.volume_left = volleft;
290 av7110->mixer.volume_right = volright;
291
292 switch (av7110->adac_type) {
293 case DVB_ADAC_TI:
294 volleft = (volleft * 256) / 1036;
295 volright = (volright * 256) / 1036;
296 if (volleft > 0x3f)
297 volleft = 0x3f;
298 if (volright > 0x3f)
299 volright = 0x3f;
300 if ((err = SendDAC(av7110, 3, 0x80 + volleft)))
301 return err;
302 return SendDAC(av7110, 4, volright);
303
304 case DVB_ADAC_CRYSTAL:
305 volleft = 127 - volleft / 2;
306 volright = 127 - volright / 2;
307 i2c_writereg(av7110, 0x20, 0x03, volleft);
308 i2c_writereg(av7110, 0x20, 0x04, volright);
309 return 0;
310
311 case DVB_ADAC_MSP34x0:
312 vol = (volleft > volright) ? volleft : volright;
313 val = (vol * 0x73 / 255) << 8;
314 if (vol > 0)
315 balance = ((volright - volleft) * 127) / vol;
316 msp_writereg(av7110, MSP_WR_DSP, 0x0001, balance << 8);
317 msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */
318 msp_writereg(av7110, MSP_WR_DSP, 0x0006, val); /* headphonesr */
319 return 0;
320
321 case DVB_ADAC_MSP34x5:
322 vol = (volleft > volright) ? volleft : volright;
323 val = (vol * 0x73 / 255) << 8;
324 if (vol > 0)
325 balance = ((volright - volleft) * 127) / vol;
326 msp_writereg(av7110, MSP_WR_DSP, 0x0001, balance << 8);
327 msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */
328 return 0;
329 }
330
331 return 0;
332 }
333
av7110_set_vidmode(struct av7110 * av7110,enum av7110_video_mode mode)334 int av7110_set_vidmode(struct av7110 *av7110, enum av7110_video_mode mode)
335 {
336 int ret;
337 dprintk(2, "av7110:%p, \n", av7110);
338
339 ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, LoadVidCode, 1, mode);
340
341 if (!ret && !av7110->playing) {
342 ret = ChangePIDs(av7110, av7110->pids[DMX_PES_VIDEO],
343 av7110->pids[DMX_PES_AUDIO],
344 av7110->pids[DMX_PES_TELETEXT],
345 0, av7110->pids[DMX_PES_PCR]);
346 if (!ret)
347 ret = av7110_fw_cmd(av7110, COMTYPE_PIDFILTER, Scan, 0);
348 }
349 return ret;
350 }
351
352
353 static enum av7110_video_mode sw2mode[16] = {
354 AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_NTSC,
355 AV7110_VIDEO_MODE_NTSC, AV7110_VIDEO_MODE_PAL,
356 AV7110_VIDEO_MODE_NTSC, AV7110_VIDEO_MODE_NTSC,
357 AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_NTSC,
358 AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
359 AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
360 AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
361 AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
362 };
363
get_video_format(struct av7110 * av7110,u8 * buf,int count)364 static int get_video_format(struct av7110 *av7110, u8 *buf, int count)
365 {
366 int i;
367 int hsize, vsize;
368 int sw;
369 u8 *p;
370 int ret = 0;
371
372 dprintk(2, "av7110:%p, \n", av7110);
373
374 if (av7110->sinfo)
375 return 0;
376 for (i = 7; i < count - 10; i++) {
377 p = buf + i;
378 if (p[0] || p[1] || p[2] != 0x01 || p[3] != 0xb3)
379 continue;
380 p += 4;
381 hsize = ((p[1] &0xF0) >> 4) | (p[0] << 4);
382 vsize = ((p[1] &0x0F) << 8) | (p[2]);
383 sw = (p[3] & 0x0F);
384 ret = av7110_set_vidmode(av7110, sw2mode[sw]);
385 if (!ret) {
386 dprintk(2, "playback %dx%d fr=%d\n", hsize, vsize, sw);
387 av7110->sinfo = 1;
388 }
389 break;
390 }
391 return ret;
392 }
393
394
395 /****************************************************************************
396 * I/O buffer management and control
397 ****************************************************************************/
398
aux_ring_buffer_write(struct dvb_ringbuffer * rbuf,const u8 * buf,unsigned long count)399 static inline long aux_ring_buffer_write(struct dvb_ringbuffer *rbuf,
400 const u8 *buf, unsigned long count)
401 {
402 unsigned long todo = count;
403 int free;
404
405 while (todo > 0) {
406 if (dvb_ringbuffer_free(rbuf) < 2048) {
407 if (wait_event_interruptible(rbuf->queue,
408 (dvb_ringbuffer_free(rbuf) >= 2048)))
409 return count - todo;
410 }
411 free = dvb_ringbuffer_free(rbuf);
412 if (free > todo)
413 free = todo;
414 dvb_ringbuffer_write(rbuf, buf, free);
415 todo -= free;
416 buf += free;
417 }
418
419 return count - todo;
420 }
421
play_video_cb(u8 * buf,int count,void * priv)422 static void play_video_cb(u8 *buf, int count, void *priv)
423 {
424 struct av7110 *av7110 = (struct av7110 *) priv;
425 dprintk(2, "av7110:%p, \n", av7110);
426
427 if ((buf[3] & 0xe0) == 0xe0) {
428 get_video_format(av7110, buf, count);
429 aux_ring_buffer_write(&av7110->avout, buf, count);
430 } else
431 aux_ring_buffer_write(&av7110->aout, buf, count);
432 }
433
play_audio_cb(u8 * buf,int count,void * priv)434 static void play_audio_cb(u8 *buf, int count, void *priv)
435 {
436 struct av7110 *av7110 = (struct av7110 *) priv;
437 dprintk(2, "av7110:%p, \n", av7110);
438
439 aux_ring_buffer_write(&av7110->aout, buf, count);
440 }
441
442
443 #define FREE_COND_TS (dvb_ringbuffer_free(rb) >= 4096)
444
ts_play(struct av7110 * av7110,const char __user * buf,unsigned long count,int nonblock,int type)445 static ssize_t ts_play(struct av7110 *av7110, const char __user *buf,
446 unsigned long count, int nonblock, int type)
447 {
448 struct dvb_ringbuffer *rb;
449 u8 *kb;
450 unsigned long todo = count;
451
452 dprintk(2, "%s: type %d cnt %lu\n", __func__, type, count);
453
454 rb = (type) ? &av7110->avout : &av7110->aout;
455 kb = av7110->kbuf[type];
456
457 if (!kb)
458 return -ENOBUFS;
459
460 if (nonblock && !FREE_COND_TS)
461 return -EWOULDBLOCK;
462
463 while (todo >= TS_SIZE) {
464 if (!FREE_COND_TS) {
465 if (nonblock)
466 return count - todo;
467 if (wait_event_interruptible(rb->queue, FREE_COND_TS))
468 return count - todo;
469 }
470 if (copy_from_user(kb, buf, TS_SIZE))
471 return -EFAULT;
472 write_ts_to_decoder(av7110, type, kb, TS_SIZE);
473 todo -= TS_SIZE;
474 buf += TS_SIZE;
475 }
476
477 return count - todo;
478 }
479
480
481 #define FREE_COND (dvb_ringbuffer_free(&av7110->avout) >= 20 * 1024 && \
482 dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)
483
dvb_play(struct av7110 * av7110,const char __user * buf,unsigned long count,int nonblock,int type)484 static ssize_t dvb_play(struct av7110 *av7110, const char __user *buf,
485 unsigned long count, int nonblock, int type)
486 {
487 unsigned long todo = count, n;
488 dprintk(2, "av7110:%p, \n", av7110);
489
490 if (!av7110->kbuf[type])
491 return -ENOBUFS;
492
493 if (nonblock && !FREE_COND)
494 return -EWOULDBLOCK;
495
496 while (todo > 0) {
497 if (!FREE_COND) {
498 if (nonblock)
499 return count - todo;
500 if (wait_event_interruptible(av7110->avout.queue,
501 FREE_COND))
502 return count - todo;
503 }
504 n = todo;
505 if (n > IPACKS * 2)
506 n = IPACKS * 2;
507 if (copy_from_user(av7110->kbuf[type], buf, n))
508 return -EFAULT;
509 av7110_ipack_instant_repack(av7110->kbuf[type], n,
510 &av7110->ipack[type]);
511 todo -= n;
512 buf += n;
513 }
514 return count - todo;
515 }
516
dvb_play_kernel(struct av7110 * av7110,const u8 * buf,unsigned long count,int nonblock,int type)517 static ssize_t dvb_play_kernel(struct av7110 *av7110, const u8 *buf,
518 unsigned long count, int nonblock, int type)
519 {
520 unsigned long todo = count, n;
521 dprintk(2, "av7110:%p, \n", av7110);
522
523 if (!av7110->kbuf[type])
524 return -ENOBUFS;
525
526 if (nonblock && !FREE_COND)
527 return -EWOULDBLOCK;
528
529 while (todo > 0) {
530 if (!FREE_COND) {
531 if (nonblock)
532 return count - todo;
533 if (wait_event_interruptible(av7110->avout.queue,
534 FREE_COND))
535 return count - todo;
536 }
537 n = todo;
538 if (n > IPACKS * 2)
539 n = IPACKS * 2;
540 av7110_ipack_instant_repack(buf, n, &av7110->ipack[type]);
541 todo -= n;
542 buf += n;
543 }
544 return count - todo;
545 }
546
dvb_aplay(struct av7110 * av7110,const char __user * buf,unsigned long count,int nonblock,int type)547 static ssize_t dvb_aplay(struct av7110 *av7110, const char __user *buf,
548 unsigned long count, int nonblock, int type)
549 {
550 unsigned long todo = count, n;
551 dprintk(2, "av7110:%p, \n", av7110);
552
553 if (!av7110->kbuf[type])
554 return -ENOBUFS;
555 if (nonblock && dvb_ringbuffer_free(&av7110->aout) < 20 * 1024)
556 return -EWOULDBLOCK;
557
558 while (todo > 0) {
559 if (dvb_ringbuffer_free(&av7110->aout) < 20 * 1024) {
560 if (nonblock)
561 return count - todo;
562 if (wait_event_interruptible(av7110->aout.queue,
563 (dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)))
564 return count-todo;
565 }
566 n = todo;
567 if (n > IPACKS * 2)
568 n = IPACKS * 2;
569 if (copy_from_user(av7110->kbuf[type], buf, n))
570 return -EFAULT;
571 av7110_ipack_instant_repack(av7110->kbuf[type], n,
572 &av7110->ipack[type]);
573 todo -= n;
574 buf += n;
575 }
576 return count - todo;
577 }
578
av7110_p2t_init(struct av7110_p2t * p,struct dvb_demux_feed * feed)579 void av7110_p2t_init(struct av7110_p2t *p, struct dvb_demux_feed *feed)
580 {
581 memset(p->pes, 0, TS_SIZE);
582 p->counter = 0;
583 p->pos = 0;
584 p->frags = 0;
585 if (feed)
586 p->feed = feed;
587 }
588
clear_p2t(struct av7110_p2t * p)589 static void clear_p2t(struct av7110_p2t *p)
590 {
591 memset(p->pes, 0, TS_SIZE);
592 // p->counter = 0;
593 p->pos = 0;
594 p->frags = 0;
595 }
596
597
find_pes_header(u8 const * buf,long int length,int * frags)598 static int find_pes_header(u8 const *buf, long int length, int *frags)
599 {
600 int c = 0;
601 int found = 0;
602
603 *frags = 0;
604
605 while (c < length - 3 && !found) {
606 if (buf[c] == 0x00 && buf[c + 1] == 0x00 &&
607 buf[c + 2] == 0x01) {
608 switch ( buf[c + 3] ) {
609 case PROG_STREAM_MAP:
610 case PRIVATE_STREAM2:
611 case PROG_STREAM_DIR:
612 case ECM_STREAM :
613 case EMM_STREAM :
614 case PADDING_STREAM :
615 case DSM_CC_STREAM :
616 case ISO13522_STREAM:
617 case PRIVATE_STREAM1:
618 case AUDIO_STREAM_S ... AUDIO_STREAM_E:
619 case VIDEO_STREAM_S ... VIDEO_STREAM_E:
620 found = 1;
621 break;
622
623 default:
624 c++;
625 break;
626 }
627 } else
628 c++;
629 }
630 if (c == length - 3 && !found) {
631 if (buf[length - 1] == 0x00)
632 *frags = 1;
633 if (buf[length - 2] == 0x00 &&
634 buf[length - 1] == 0x00)
635 *frags = 2;
636 if (buf[length - 3] == 0x00 &&
637 buf[length - 2] == 0x00 &&
638 buf[length - 1] == 0x01)
639 *frags = 3;
640 return -1;
641 }
642
643 return c;
644 }
645
av7110_p2t_write(u8 const * buf,long int length,u16 pid,struct av7110_p2t * p)646 void av7110_p2t_write(u8 const *buf, long int length, u16 pid, struct av7110_p2t *p)
647 {
648 int c, c2, l, add;
649 int check, rest;
650
651 c = 0;
652 c2 = 0;
653 if (p->frags){
654 check = 0;
655 switch(p->frags) {
656 case 1:
657 if (buf[c] == 0x00 && buf[c + 1] == 0x01) {
658 check = 1;
659 c += 2;
660 }
661 break;
662 case 2:
663 if (buf[c] == 0x01) {
664 check = 1;
665 c++;
666 }
667 break;
668 case 3:
669 check = 1;
670 }
671 if (check) {
672 switch (buf[c]) {
673 case PROG_STREAM_MAP:
674 case PRIVATE_STREAM2:
675 case PROG_STREAM_DIR:
676 case ECM_STREAM :
677 case EMM_STREAM :
678 case PADDING_STREAM :
679 case DSM_CC_STREAM :
680 case ISO13522_STREAM:
681 case PRIVATE_STREAM1:
682 case AUDIO_STREAM_S ... AUDIO_STREAM_E:
683 case VIDEO_STREAM_S ... VIDEO_STREAM_E:
684 p->pes[0] = 0x00;
685 p->pes[1] = 0x00;
686 p->pes[2] = 0x01;
687 p->pes[3] = buf[c];
688 p->pos = 4;
689 memcpy(p->pes + p->pos, buf + c, (TS_SIZE - 4) - p->pos);
690 c += (TS_SIZE - 4) - p->pos;
691 p_to_t(p->pes, (TS_SIZE - 4), pid, &p->counter, p->feed);
692 clear_p2t(p);
693 break;
694
695 default:
696 c = 0;
697 break;
698 }
699 }
700 p->frags = 0;
701 }
702
703 if (p->pos) {
704 c2 = find_pes_header(buf + c, length - c, &p->frags);
705 if (c2 >= 0 && c2 < (TS_SIZE - 4) - p->pos)
706 l = c2+c;
707 else
708 l = (TS_SIZE - 4) - p->pos;
709 memcpy(p->pes + p->pos, buf, l);
710 c += l;
711 p->pos += l;
712 p_to_t(p->pes, p->pos, pid, &p->counter, p->feed);
713 clear_p2t(p);
714 }
715
716 add = 0;
717 while (c < length) {
718 c2 = find_pes_header(buf + c + add, length - c - add, &p->frags);
719 if (c2 >= 0) {
720 c2 += c + add;
721 if (c2 > c){
722 p_to_t(buf + c, c2 - c, pid, &p->counter, p->feed);
723 c = c2;
724 clear_p2t(p);
725 add = 0;
726 } else
727 add = 1;
728 } else {
729 l = length - c;
730 rest = l % (TS_SIZE - 4);
731 l -= rest;
732 p_to_t(buf + c, l, pid, &p->counter, p->feed);
733 memcpy(p->pes, buf + c + l, rest);
734 p->pos = rest;
735 c = length;
736 }
737 }
738 }
739
740
write_ts_header2(u16 pid,u8 * counter,int pes_start,u8 * buf,u8 length)741 static int write_ts_header2(u16 pid, u8 *counter, int pes_start, u8 *buf, u8 length)
742 {
743 int i;
744 int c = 0;
745 int fill;
746 u8 tshead[4] = { 0x47, 0x00, 0x00, 0x10 };
747
748 fill = (TS_SIZE - 4) - length;
749 if (pes_start)
750 tshead[1] = 0x40;
751 if (fill)
752 tshead[3] = 0x30;
753 tshead[1] |= (u8)((pid & 0x1F00) >> 8);
754 tshead[2] |= (u8)(pid & 0x00FF);
755 tshead[3] |= ((*counter)++ & 0x0F);
756 memcpy(buf, tshead, 4);
757 c += 4;
758
759 if (fill) {
760 buf[4] = fill - 1;
761 c++;
762 if (fill > 1) {
763 buf[5] = 0x00;
764 c++;
765 }
766 for (i = 6; i < fill + 4; i++) {
767 buf[i] = 0xFF;
768 c++;
769 }
770 }
771
772 return c;
773 }
774
775
p_to_t(u8 const * buf,long int length,u16 pid,u8 * counter,struct dvb_demux_feed * feed)776 static void p_to_t(u8 const *buf, long int length, u16 pid, u8 *counter,
777 struct dvb_demux_feed *feed)
778 {
779 int l, pes_start;
780 u8 obuf[TS_SIZE];
781 long c = 0;
782
783 pes_start = 0;
784 if (length > 3 &&
785 buf[0] == 0x00 && buf[1] == 0x00 && buf[2] == 0x01)
786 switch (buf[3]) {
787 case PROG_STREAM_MAP:
788 case PRIVATE_STREAM2:
789 case PROG_STREAM_DIR:
790 case ECM_STREAM :
791 case EMM_STREAM :
792 case PADDING_STREAM :
793 case DSM_CC_STREAM :
794 case ISO13522_STREAM:
795 case PRIVATE_STREAM1:
796 case AUDIO_STREAM_S ... AUDIO_STREAM_E:
797 case VIDEO_STREAM_S ... VIDEO_STREAM_E:
798 pes_start = 1;
799 break;
800
801 default:
802 break;
803 }
804
805 while (c < length) {
806 memset(obuf, 0, TS_SIZE);
807 if (length - c >= (TS_SIZE - 4)){
808 l = write_ts_header2(pid, counter, pes_start,
809 obuf, (TS_SIZE - 4));
810 memcpy(obuf + l, buf + c, TS_SIZE - l);
811 c += TS_SIZE - l;
812 } else {
813 l = write_ts_header2(pid, counter, pes_start,
814 obuf, length - c);
815 memcpy(obuf + l, buf + c, TS_SIZE - l);
816 c = length;
817 }
818 feed->cb.ts(obuf, 188, NULL, 0, &feed->feed.ts, DMX_OK);
819 pes_start = 0;
820 }
821 }
822
823
write_ts_to_decoder(struct av7110 * av7110,int type,const u8 * buf,size_t len)824 static int write_ts_to_decoder(struct av7110 *av7110, int type, const u8 *buf, size_t len)
825 {
826 struct ipack *ipack = &av7110->ipack[type];
827
828 if (buf[1] & TRANS_ERROR) {
829 av7110_ipack_reset(ipack);
830 return -1;
831 }
832
833 if (!(buf[3] & PAYLOAD))
834 return -1;
835
836 if (buf[1] & PAY_START)
837 av7110_ipack_flush(ipack);
838
839 if (buf[3] & ADAPT_FIELD) {
840 len -= buf[4] + 1;
841 buf += buf[4] + 1;
842 if (!len)
843 return 0;
844 }
845
846 av7110_ipack_instant_repack(buf + 4, len - 4, ipack);
847 return 0;
848 }
849
850
av7110_write_to_decoder(struct dvb_demux_feed * feed,const u8 * buf,size_t len)851 int av7110_write_to_decoder(struct dvb_demux_feed *feed, const u8 *buf, size_t len)
852 {
853 struct dvb_demux *demux = feed->demux;
854 struct av7110 *av7110 = (struct av7110 *) demux->priv;
855
856 dprintk(2, "av7110:%p, \n", av7110);
857
858 if (av7110->full_ts && demux->dmx.frontend->source != DMX_MEMORY_FE)
859 return 0;
860
861 switch (feed->pes_type) {
862 case 0:
863 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
864 return -EINVAL;
865 break;
866 case 1:
867 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY)
868 return -EINVAL;
869 break;
870 default:
871 return -1;
872 }
873
874 return write_ts_to_decoder(av7110, feed->pes_type, buf, len);
875 }
876
877
878
879 /******************************************************************************
880 * Video MPEG decoder events
881 ******************************************************************************/
dvb_video_add_event(struct av7110 * av7110,struct video_event * event)882 void dvb_video_add_event(struct av7110 *av7110, struct video_event *event)
883 {
884 struct dvb_video_events *events = &av7110->video_events;
885 int wp;
886
887 spin_lock_bh(&events->lock);
888
889 wp = (events->eventw + 1) % MAX_VIDEO_EVENT;
890 if (wp == events->eventr) {
891 events->overflow = 1;
892 events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT;
893 }
894
895 //FIXME: timestamp?
896 memcpy(&events->events[events->eventw], event, sizeof(struct video_event));
897 events->eventw = wp;
898
899 spin_unlock_bh(&events->lock);
900
901 wake_up_interruptible(&events->wait_queue);
902 }
903
904
dvb_video_get_event(struct av7110 * av7110,struct video_event * event,int flags)905 static int dvb_video_get_event (struct av7110 *av7110, struct video_event *event, int flags)
906 {
907 struct dvb_video_events *events = &av7110->video_events;
908
909 if (events->overflow) {
910 events->overflow = 0;
911 return -EOVERFLOW;
912 }
913 if (events->eventw == events->eventr) {
914 int ret;
915
916 if (flags & O_NONBLOCK)
917 return -EWOULDBLOCK;
918
919 ret = wait_event_interruptible(events->wait_queue,
920 events->eventw != events->eventr);
921 if (ret < 0)
922 return ret;
923 }
924
925 spin_lock_bh(&events->lock);
926
927 memcpy(event, &events->events[events->eventr],
928 sizeof(struct video_event));
929 events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT;
930
931 spin_unlock_bh(&events->lock);
932
933 return 0;
934 }
935
936
937 /******************************************************************************
938 * DVB device file operations
939 ******************************************************************************/
940
dvb_video_poll(struct file * file,poll_table * wait)941 static unsigned int dvb_video_poll(struct file *file, poll_table *wait)
942 {
943 struct dvb_device *dvbdev = file->private_data;
944 struct av7110 *av7110 = dvbdev->priv;
945 unsigned int mask = 0;
946
947 dprintk(2, "av7110:%p, \n", av7110);
948
949 if ((file->f_flags & O_ACCMODE) != O_RDONLY)
950 poll_wait(file, &av7110->avout.queue, wait);
951
952 poll_wait(file, &av7110->video_events.wait_queue, wait);
953
954 if (av7110->video_events.eventw != av7110->video_events.eventr)
955 mask = POLLPRI;
956
957 if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
958 if (av7110->playing) {
959 if (FREE_COND)
960 mask |= (POLLOUT | POLLWRNORM);
961 } else {
962 /* if not playing: may play if asked for */
963 mask |= (POLLOUT | POLLWRNORM);
964 }
965 }
966
967 return mask;
968 }
969
dvb_video_write(struct file * file,const char __user * buf,size_t count,loff_t * ppos)970 static ssize_t dvb_video_write(struct file *file, const char __user *buf,
971 size_t count, loff_t *ppos)
972 {
973 struct dvb_device *dvbdev = file->private_data;
974 struct av7110 *av7110 = dvbdev->priv;
975 unsigned char c;
976
977 dprintk(2, "av7110:%p, \n", av7110);
978
979 if ((file->f_flags & O_ACCMODE) == O_RDONLY)
980 return -EPERM;
981
982 if (av7110->videostate.stream_source != VIDEO_SOURCE_MEMORY)
983 return -EPERM;
984
985 if (get_user(c, buf))
986 return -EFAULT;
987 if (c == 0x47 && count % TS_SIZE == 0)
988 return ts_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 1);
989 else
990 return dvb_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 1);
991 }
992
dvb_audio_poll(struct file * file,poll_table * wait)993 static unsigned int dvb_audio_poll(struct file *file, poll_table *wait)
994 {
995 struct dvb_device *dvbdev = file->private_data;
996 struct av7110 *av7110 = dvbdev->priv;
997 unsigned int mask = 0;
998
999 dprintk(2, "av7110:%p, \n", av7110);
1000
1001 poll_wait(file, &av7110->aout.queue, wait);
1002
1003 if (av7110->playing) {
1004 if (dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)
1005 mask |= (POLLOUT | POLLWRNORM);
1006 } else /* if not playing: may play if asked for */
1007 mask = (POLLOUT | POLLWRNORM);
1008
1009 return mask;
1010 }
1011
dvb_audio_write(struct file * file,const char __user * buf,size_t count,loff_t * ppos)1012 static ssize_t dvb_audio_write(struct file *file, const char __user *buf,
1013 size_t count, loff_t *ppos)
1014 {
1015 struct dvb_device *dvbdev = file->private_data;
1016 struct av7110 *av7110 = dvbdev->priv;
1017 unsigned char c;
1018
1019 dprintk(2, "av7110:%p, \n", av7110);
1020
1021 if (av7110->audiostate.stream_source != AUDIO_SOURCE_MEMORY) {
1022 printk(KERN_ERR "not audio source memory\n");
1023 return -EPERM;
1024 }
1025
1026 if (get_user(c, buf))
1027 return -EFAULT;
1028 if (c == 0x47 && count % TS_SIZE == 0)
1029 return ts_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 0);
1030 else
1031 return dvb_aplay(av7110, buf, count, file->f_flags & O_NONBLOCK, 0);
1032 }
1033
1034 static u8 iframe_header[] = { 0x00, 0x00, 0x01, 0xe0, 0x00, 0x00, 0x80, 0x00, 0x00 };
1035
1036 #define MIN_IFRAME 400000
1037
play_iframe(struct av7110 * av7110,char __user * buf,unsigned int len,int nonblock)1038 static int play_iframe(struct av7110 *av7110, char __user *buf, unsigned int len, int nonblock)
1039 {
1040 unsigned i, n;
1041 int progressive = 0;
1042 int match = 0;
1043
1044 dprintk(2, "av7110:%p, \n", av7110);
1045
1046 if (!(av7110->playing & RP_VIDEO)) {
1047 if (av7110_av_start_play(av7110, RP_VIDEO) < 0)
1048 return -EBUSY;
1049 }
1050
1051 /* search in buf for instances of 00 00 01 b5 1? */
1052 for (i = 0; i < len; i++) {
1053 unsigned char c;
1054 if (get_user(c, buf + i))
1055 return -EFAULT;
1056 if (match == 5) {
1057 progressive = c & 0x08;
1058 match = 0;
1059 }
1060 if (c == 0x00) {
1061 match = (match == 1 || match == 2) ? 2 : 1;
1062 continue;
1063 }
1064 switch (match++) {
1065 case 2: if (c == 0x01)
1066 continue;
1067 break;
1068 case 3: if (c == 0xb5)
1069 continue;
1070 break;
1071 case 4: if ((c & 0xf0) == 0x10)
1072 continue;
1073 break;
1074 }
1075 match = 0;
1076 }
1077
1078 /* setting n always > 1, fixes problems when playing stillframes
1079 consisting of I- and P-Frames */
1080 n = MIN_IFRAME / len + 1;
1081
1082 /* FIXME: nonblock? */
1083 dvb_play_kernel(av7110, iframe_header, sizeof(iframe_header), 0, 1);
1084
1085 for (i = 0; i < n; i++)
1086 dvb_play(av7110, buf, len, 0, 1);
1087
1088 av7110_ipack_flush(&av7110->ipack[1]);
1089
1090 if (progressive)
1091 return vidcom(av7110, AV_VIDEO_CMD_FREEZE, 1);
1092 else
1093 return 0;
1094 }
1095
1096
dvb_video_ioctl(struct file * file,unsigned int cmd,void * parg)1097 static int dvb_video_ioctl(struct file *file,
1098 unsigned int cmd, void *parg)
1099 {
1100 struct dvb_device *dvbdev = file->private_data;
1101 struct av7110 *av7110 = dvbdev->priv;
1102 unsigned long arg = (unsigned long) parg;
1103 int ret = 0;
1104
1105 dprintk(1, "av7110:%p, cmd=%04x\n", av7110,cmd);
1106
1107 if ((file->f_flags & O_ACCMODE) == O_RDONLY) {
1108 if ( cmd != VIDEO_GET_STATUS && cmd != VIDEO_GET_EVENT &&
1109 cmd != VIDEO_GET_SIZE ) {
1110 return -EPERM;
1111 }
1112 }
1113
1114 if (mutex_lock_interruptible(&av7110->ioctl_mutex))
1115 return -ERESTARTSYS;
1116
1117 switch (cmd) {
1118 case VIDEO_STOP:
1119 av7110->videostate.play_state = VIDEO_STOPPED;
1120 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY)
1121 ret = av7110_av_stop(av7110, RP_VIDEO);
1122 else
1123 ret = vidcom(av7110, AV_VIDEO_CMD_STOP,
1124 av7110->videostate.video_blank ? 0 : 1);
1125 if (!ret)
1126 av7110->trickmode = TRICK_NONE;
1127 break;
1128
1129 case VIDEO_PLAY:
1130 av7110->trickmode = TRICK_NONE;
1131 if (av7110->videostate.play_state == VIDEO_FREEZED) {
1132 av7110->videostate.play_state = VIDEO_PLAYING;
1133 ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1134 if (ret)
1135 break;
1136 }
1137 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY) {
1138 if (av7110->playing == RP_AV) {
1139 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
1140 if (ret)
1141 break;
1142 av7110->playing &= ~RP_VIDEO;
1143 }
1144 ret = av7110_av_start_play(av7110, RP_VIDEO);
1145 }
1146 if (!ret)
1147 ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1148 if (!ret)
1149 av7110->videostate.play_state = VIDEO_PLAYING;
1150 break;
1151
1152 case VIDEO_FREEZE:
1153 av7110->videostate.play_state = VIDEO_FREEZED;
1154 if (av7110->playing & RP_VIDEO)
1155 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Pause, 0);
1156 else
1157 ret = vidcom(av7110, AV_VIDEO_CMD_FREEZE, 1);
1158 if (!ret)
1159 av7110->trickmode = TRICK_FREEZE;
1160 break;
1161
1162 case VIDEO_CONTINUE:
1163 if (av7110->playing & RP_VIDEO)
1164 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Continue, 0);
1165 if (!ret)
1166 ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1167 if (!ret) {
1168 av7110->videostate.play_state = VIDEO_PLAYING;
1169 av7110->trickmode = TRICK_NONE;
1170 }
1171 break;
1172
1173 case VIDEO_SELECT_SOURCE:
1174 av7110->videostate.stream_source = (video_stream_source_t) arg;
1175 break;
1176
1177 case VIDEO_SET_BLANK:
1178 av7110->videostate.video_blank = (int) arg;
1179 break;
1180
1181 case VIDEO_GET_STATUS:
1182 memcpy(parg, &av7110->videostate, sizeof(struct video_status));
1183 break;
1184
1185 case VIDEO_GET_EVENT:
1186 ret = dvb_video_get_event(av7110, parg, file->f_flags);
1187 break;
1188
1189 case VIDEO_GET_SIZE:
1190 memcpy(parg, &av7110->video_size, sizeof(video_size_t));
1191 break;
1192
1193 case VIDEO_SET_DISPLAY_FORMAT:
1194 {
1195 video_displayformat_t format = (video_displayformat_t) arg;
1196 switch (format) {
1197 case VIDEO_PAN_SCAN:
1198 av7110->display_panscan = VID_PAN_SCAN_PREF;
1199 break;
1200 case VIDEO_LETTER_BOX:
1201 av7110->display_panscan = VID_VC_AND_PS_PREF;
1202 break;
1203 case VIDEO_CENTER_CUT_OUT:
1204 av7110->display_panscan = VID_CENTRE_CUT_PREF;
1205 break;
1206 default:
1207 ret = -EINVAL;
1208 }
1209 if (ret < 0)
1210 break;
1211 av7110->videostate.display_format = format;
1212 ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetPanScanType,
1213 1, av7110->display_panscan);
1214 break;
1215 }
1216
1217 case VIDEO_SET_FORMAT:
1218 if (arg > 1) {
1219 ret = -EINVAL;
1220 break;
1221 }
1222 av7110->display_ar = arg;
1223 ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetMonitorType,
1224 1, (u16) arg);
1225 break;
1226
1227 case VIDEO_STILLPICTURE:
1228 {
1229 struct video_still_picture *pic =
1230 (struct video_still_picture *) parg;
1231 av7110->videostate.stream_source = VIDEO_SOURCE_MEMORY;
1232 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1233 ret = play_iframe(av7110, pic->iFrame, pic->size,
1234 file->f_flags & O_NONBLOCK);
1235 break;
1236 }
1237
1238 case VIDEO_FAST_FORWARD:
1239 //note: arg is ignored by firmware
1240 if (av7110->playing & RP_VIDEO)
1241 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1242 __Scan_I, 2, AV_PES, 0);
1243 else
1244 ret = vidcom(av7110, AV_VIDEO_CMD_FFWD, arg);
1245 if (!ret) {
1246 av7110->trickmode = TRICK_FAST;
1247 av7110->videostate.play_state = VIDEO_PLAYING;
1248 }
1249 break;
1250
1251 case VIDEO_SLOWMOTION:
1252 if (av7110->playing&RP_VIDEO) {
1253 if (av7110->trickmode != TRICK_SLOW)
1254 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Slow, 2, 0, 0);
1255 if (!ret)
1256 ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1257 } else {
1258 ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1259 if (!ret)
1260 ret = vidcom(av7110, AV_VIDEO_CMD_STOP, 0);
1261 if (!ret)
1262 ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1263 }
1264 if (!ret) {
1265 av7110->trickmode = TRICK_SLOW;
1266 av7110->videostate.play_state = VIDEO_PLAYING;
1267 }
1268 break;
1269
1270 case VIDEO_GET_CAPABILITIES:
1271 *(int *)parg = VIDEO_CAP_MPEG1 | VIDEO_CAP_MPEG2 |
1272 VIDEO_CAP_SYS | VIDEO_CAP_PROG;
1273 break;
1274
1275 case VIDEO_CLEAR_BUFFER:
1276 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1277 av7110_ipack_reset(&av7110->ipack[1]);
1278 if (av7110->playing == RP_AV) {
1279 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1280 __Play, 2, AV_PES, 0);
1281 if (ret)
1282 break;
1283 if (av7110->trickmode == TRICK_FAST)
1284 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1285 __Scan_I, 2, AV_PES, 0);
1286 if (av7110->trickmode == TRICK_SLOW) {
1287 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1288 __Slow, 2, 0, 0);
1289 if (!ret)
1290 ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1291 }
1292 if (av7110->trickmode == TRICK_FREEZE)
1293 ret = vidcom(av7110, AV_VIDEO_CMD_STOP, 1);
1294 }
1295 break;
1296
1297 case VIDEO_SET_STREAMTYPE:
1298 break;
1299
1300 default:
1301 ret = -ENOIOCTLCMD;
1302 break;
1303 }
1304
1305 mutex_unlock(&av7110->ioctl_mutex);
1306 return ret;
1307 }
1308
dvb_audio_ioctl(struct file * file,unsigned int cmd,void * parg)1309 static int dvb_audio_ioctl(struct file *file,
1310 unsigned int cmd, void *parg)
1311 {
1312 struct dvb_device *dvbdev = file->private_data;
1313 struct av7110 *av7110 = dvbdev->priv;
1314 unsigned long arg = (unsigned long) parg;
1315 int ret = 0;
1316
1317 dprintk(1, "av7110:%p, cmd=%04x\n", av7110,cmd);
1318
1319 if (((file->f_flags & O_ACCMODE) == O_RDONLY) &&
1320 (cmd != AUDIO_GET_STATUS))
1321 return -EPERM;
1322
1323 if (mutex_lock_interruptible(&av7110->ioctl_mutex))
1324 return -ERESTARTSYS;
1325
1326 switch (cmd) {
1327 case AUDIO_STOP:
1328 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
1329 ret = av7110_av_stop(av7110, RP_AUDIO);
1330 else
1331 ret = audcom(av7110, AUDIO_CMD_MUTE);
1332 if (!ret)
1333 av7110->audiostate.play_state = AUDIO_STOPPED;
1334 break;
1335
1336 case AUDIO_PLAY:
1337 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
1338 ret = av7110_av_start_play(av7110, RP_AUDIO);
1339 if (!ret)
1340 ret = audcom(av7110, AUDIO_CMD_UNMUTE);
1341 if (!ret)
1342 av7110->audiostate.play_state = AUDIO_PLAYING;
1343 break;
1344
1345 case AUDIO_PAUSE:
1346 ret = audcom(av7110, AUDIO_CMD_MUTE);
1347 if (!ret)
1348 av7110->audiostate.play_state = AUDIO_PAUSED;
1349 break;
1350
1351 case AUDIO_CONTINUE:
1352 if (av7110->audiostate.play_state == AUDIO_PAUSED) {
1353 av7110->audiostate.play_state = AUDIO_PLAYING;
1354 ret = audcom(av7110, AUDIO_CMD_UNMUTE | AUDIO_CMD_PCM16);
1355 }
1356 break;
1357
1358 case AUDIO_SELECT_SOURCE:
1359 av7110->audiostate.stream_source = (audio_stream_source_t) arg;
1360 break;
1361
1362 case AUDIO_SET_MUTE:
1363 {
1364 ret = audcom(av7110, arg ? AUDIO_CMD_MUTE : AUDIO_CMD_UNMUTE);
1365 if (!ret)
1366 av7110->audiostate.mute_state = (int) arg;
1367 break;
1368 }
1369
1370 case AUDIO_SET_AV_SYNC:
1371 av7110->audiostate.AV_sync_state = (int) arg;
1372 ret = audcom(av7110, arg ? AUDIO_CMD_SYNC_ON : AUDIO_CMD_SYNC_OFF);
1373 break;
1374
1375 case AUDIO_SET_BYPASS_MODE:
1376 if (FW_VERSION(av7110->arm_app) < 0x2621)
1377 ret = -EINVAL;
1378 av7110->audiostate.bypass_mode = (int)arg;
1379 break;
1380
1381 case AUDIO_CHANNEL_SELECT:
1382 av7110->audiostate.channel_select = (audio_channel_select_t) arg;
1383 switch(av7110->audiostate.channel_select) {
1384 case AUDIO_STEREO:
1385 ret = audcom(av7110, AUDIO_CMD_STEREO);
1386 if (!ret) {
1387 if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1388 i2c_writereg(av7110, 0x20, 0x02, 0x49);
1389 else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1390 msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0220);
1391 }
1392 break;
1393 case AUDIO_MONO_LEFT:
1394 ret = audcom(av7110, AUDIO_CMD_MONO_L);
1395 if (!ret) {
1396 if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1397 i2c_writereg(av7110, 0x20, 0x02, 0x4a);
1398 else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1399 msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0200);
1400 }
1401 break;
1402 case AUDIO_MONO_RIGHT:
1403 ret = audcom(av7110, AUDIO_CMD_MONO_R);
1404 if (!ret) {
1405 if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1406 i2c_writereg(av7110, 0x20, 0x02, 0x45);
1407 else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1408 msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0210);
1409 }
1410 break;
1411 default:
1412 ret = -EINVAL;
1413 break;
1414 }
1415 break;
1416
1417 case AUDIO_GET_STATUS:
1418 memcpy(parg, &av7110->audiostate, sizeof(struct audio_status));
1419 break;
1420
1421 case AUDIO_GET_CAPABILITIES:
1422 if (FW_VERSION(av7110->arm_app) < 0x2621)
1423 *(unsigned int *)parg = AUDIO_CAP_LPCM | AUDIO_CAP_MP1 | AUDIO_CAP_MP2;
1424 else
1425 *(unsigned int *)parg = AUDIO_CAP_LPCM | AUDIO_CAP_DTS | AUDIO_CAP_AC3 |
1426 AUDIO_CAP_MP1 | AUDIO_CAP_MP2;
1427 break;
1428
1429 case AUDIO_CLEAR_BUFFER:
1430 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1431 av7110_ipack_reset(&av7110->ipack[0]);
1432 if (av7110->playing == RP_AV)
1433 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1434 __Play, 2, AV_PES, 0);
1435 break;
1436
1437 case AUDIO_SET_ID:
1438 break;
1439
1440 case AUDIO_SET_MIXER:
1441 {
1442 struct audio_mixer *amix = (struct audio_mixer *)parg;
1443 ret = av7110_set_volume(av7110, amix->volume_left, amix->volume_right);
1444 break;
1445 }
1446
1447 case AUDIO_SET_STREAMTYPE:
1448 break;
1449
1450 default:
1451 ret = -ENOIOCTLCMD;
1452 }
1453
1454 mutex_unlock(&av7110->ioctl_mutex);
1455 return ret;
1456 }
1457
1458
dvb_video_open(struct inode * inode,struct file * file)1459 static int dvb_video_open(struct inode *inode, struct file *file)
1460 {
1461 struct dvb_device *dvbdev = file->private_data;
1462 struct av7110 *av7110 = dvbdev->priv;
1463 int err;
1464
1465 dprintk(2, "av7110:%p, \n", av7110);
1466
1467 if ((err = dvb_generic_open(inode, file)) < 0)
1468 return err;
1469
1470 if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
1471 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1472 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1473 av7110->video_blank = 1;
1474 av7110->audiostate.AV_sync_state = 1;
1475 av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX;
1476
1477 /* empty event queue */
1478 av7110->video_events.eventr = av7110->video_events.eventw = 0;
1479 }
1480
1481 return 0;
1482 }
1483
dvb_video_release(struct inode * inode,struct file * file)1484 static int dvb_video_release(struct inode *inode, struct file *file)
1485 {
1486 struct dvb_device *dvbdev = file->private_data;
1487 struct av7110 *av7110 = dvbdev->priv;
1488
1489 dprintk(2, "av7110:%p, \n", av7110);
1490
1491 if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
1492 av7110_av_stop(av7110, RP_VIDEO);
1493 }
1494
1495 return dvb_generic_release(inode, file);
1496 }
1497
dvb_audio_open(struct inode * inode,struct file * file)1498 static int dvb_audio_open(struct inode *inode, struct file *file)
1499 {
1500 struct dvb_device *dvbdev = file->private_data;
1501 struct av7110 *av7110 = dvbdev->priv;
1502 int err = dvb_generic_open(inode, file);
1503
1504 dprintk(2, "av7110:%p, \n", av7110);
1505
1506 if (err < 0)
1507 return err;
1508 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1509 av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX;
1510 return 0;
1511 }
1512
dvb_audio_release(struct inode * inode,struct file * file)1513 static int dvb_audio_release(struct inode *inode, struct file *file)
1514 {
1515 struct dvb_device *dvbdev = file->private_data;
1516 struct av7110 *av7110 = dvbdev->priv;
1517
1518 dprintk(2, "av7110:%p, \n", av7110);
1519
1520 av7110_av_stop(av7110, RP_AUDIO);
1521 return dvb_generic_release(inode, file);
1522 }
1523
1524
1525
1526 /******************************************************************************
1527 * driver registration
1528 ******************************************************************************/
1529
1530 static const struct file_operations dvb_video_fops = {
1531 .owner = THIS_MODULE,
1532 .write = dvb_video_write,
1533 .unlocked_ioctl = dvb_generic_ioctl,
1534 .open = dvb_video_open,
1535 .release = dvb_video_release,
1536 .poll = dvb_video_poll,
1537 .llseek = noop_llseek,
1538 };
1539
1540 static struct dvb_device dvbdev_video = {
1541 .priv = NULL,
1542 .users = 6,
1543 .readers = 5, /* arbitrary */
1544 .writers = 1,
1545 .fops = &dvb_video_fops,
1546 .kernel_ioctl = dvb_video_ioctl,
1547 };
1548
1549 static const struct file_operations dvb_audio_fops = {
1550 .owner = THIS_MODULE,
1551 .write = dvb_audio_write,
1552 .unlocked_ioctl = dvb_generic_ioctl,
1553 .open = dvb_audio_open,
1554 .release = dvb_audio_release,
1555 .poll = dvb_audio_poll,
1556 .llseek = noop_llseek,
1557 };
1558
1559 static struct dvb_device dvbdev_audio = {
1560 .priv = NULL,
1561 .users = 1,
1562 .writers = 1,
1563 .fops = &dvb_audio_fops,
1564 .kernel_ioctl = dvb_audio_ioctl,
1565 };
1566
1567
av7110_av_register(struct av7110 * av7110)1568 int av7110_av_register(struct av7110 *av7110)
1569 {
1570 av7110->audiostate.AV_sync_state = 0;
1571 av7110->audiostate.mute_state = 0;
1572 av7110->audiostate.play_state = AUDIO_STOPPED;
1573 av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX;
1574 av7110->audiostate.channel_select = AUDIO_STEREO;
1575 av7110->audiostate.bypass_mode = 0;
1576
1577 av7110->videostate.video_blank = 0;
1578 av7110->videostate.play_state = VIDEO_STOPPED;
1579 av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX;
1580 av7110->videostate.video_format = VIDEO_FORMAT_4_3;
1581 av7110->videostate.display_format = VIDEO_LETTER_BOX;
1582 av7110->display_ar = VIDEO_FORMAT_4_3;
1583 av7110->display_panscan = VID_VC_AND_PS_PREF;
1584
1585 init_waitqueue_head(&av7110->video_events.wait_queue);
1586 spin_lock_init(&av7110->video_events.lock);
1587 av7110->video_events.eventw = av7110->video_events.eventr = 0;
1588 av7110->video_events.overflow = 0;
1589 memset(&av7110->video_size, 0, sizeof (video_size_t));
1590
1591 dvb_register_device(&av7110->dvb_adapter, &av7110->video_dev,
1592 &dvbdev_video, av7110, DVB_DEVICE_VIDEO);
1593
1594 dvb_register_device(&av7110->dvb_adapter, &av7110->audio_dev,
1595 &dvbdev_audio, av7110, DVB_DEVICE_AUDIO);
1596
1597 return 0;
1598 }
1599
av7110_av_unregister(struct av7110 * av7110)1600 void av7110_av_unregister(struct av7110 *av7110)
1601 {
1602 dvb_unregister_device(av7110->audio_dev);
1603 dvb_unregister_device(av7110->video_dev);
1604 }
1605
av7110_av_init(struct av7110 * av7110)1606 int av7110_av_init(struct av7110 *av7110)
1607 {
1608 void (*play[])(u8 *, int, void *) = { play_audio_cb, play_video_cb };
1609 int i, ret;
1610
1611 for (i = 0; i < 2; i++) {
1612 struct ipack *ipack = av7110->ipack + i;
1613
1614 ret = av7110_ipack_init(ipack, IPACKS, play[i]);
1615 if (ret < 0) {
1616 if (i)
1617 av7110_ipack_free(--ipack);
1618 goto out;
1619 }
1620 ipack->data = av7110;
1621 }
1622
1623 dvb_ringbuffer_init(&av7110->avout, av7110->iobuf, AVOUTLEN);
1624 dvb_ringbuffer_init(&av7110->aout, av7110->iobuf + AVOUTLEN, AOUTLEN);
1625
1626 av7110->kbuf[0] = (u8 *)(av7110->iobuf + AVOUTLEN + AOUTLEN + BMPLEN);
1627 av7110->kbuf[1] = av7110->kbuf[0] + 2 * IPACKS;
1628 out:
1629 return ret;
1630 }
1631
av7110_av_exit(struct av7110 * av7110)1632 void av7110_av_exit(struct av7110 *av7110)
1633 {
1634 av7110_ipack_free(&av7110->ipack[0]);
1635 av7110_ipack_free(&av7110->ipack[1]);
1636 }
1637