1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * av7110_av.c: audio and video MPEG decoder stuff
4 *
5 * Copyright (C) 1999-2002 Ralph Metzler
6 * & Marcus Metzler for convergence integrated media GmbH
7 *
8 * originally based on code by:
9 * Copyright (C) 1998,1999 Christian Theiss <mistert@rz.fh-augsburg.de>
10 *
11 * the project's page is at https://linuxtv.org
12 */
13
14 #include <linux/types.h>
15 #include <linux/kernel.h>
16 #include <linux/string.h>
17 #include <linux/delay.h>
18 #include <linux/fs.h>
19
20 #include "av7110.h"
21 #include "av7110_hw.h"
22 #include "av7110_av.h"
23 #include "av7110_ipack.h"
24
25 /* MPEG-2 (ISO 13818 / H.222.0) stream types */
26 #define PROG_STREAM_MAP 0xBC
27 #define PRIVATE_STREAM1 0xBD
28 #define PADDING_STREAM 0xBE
29 #define PRIVATE_STREAM2 0xBF
30 #define AUDIO_STREAM_S 0xC0
31 #define AUDIO_STREAM_E 0xDF
32 #define VIDEO_STREAM_S 0xE0
33 #define VIDEO_STREAM_E 0xEF
34 #define ECM_STREAM 0xF0
35 #define EMM_STREAM 0xF1
36 #define DSM_CC_STREAM 0xF2
37 #define ISO13522_STREAM 0xF3
38 #define PROG_STREAM_DIR 0xFF
39
40 #define PTS_DTS_FLAGS 0xC0
41
42 //pts_dts flags
43 #define PTS_ONLY 0x80
44 #define PTS_DTS 0xC0
45 #define TS_SIZE 188
46 #define TRANS_ERROR 0x80
47 #define PAY_START 0x40
48 #define TRANS_PRIO 0x20
49 #define PID_MASK_HI 0x1F
50 //flags
51 #define TRANS_SCRMBL1 0x80
52 #define TRANS_SCRMBL2 0x40
53 #define ADAPT_FIELD 0x20
54 #define PAYLOAD 0x10
55 #define COUNT_MASK 0x0F
56
57 // adaptation flags
58 #define DISCON_IND 0x80
59 #define RAND_ACC_IND 0x40
60 #define ES_PRI_IND 0x20
61 #define PCR_FLAG 0x10
62 #define OPCR_FLAG 0x08
63 #define SPLICE_FLAG 0x04
64 #define TRANS_PRIV 0x02
65 #define ADAP_EXT_FLAG 0x01
66
67 // adaptation extension flags
68 #define LTW_FLAG 0x80
69 #define PIECE_RATE 0x40
70 #define SEAM_SPLICE 0x20
71
72
73 static void p_to_t(u8 const *buf, long int length, u16 pid,
74 u8 *counter, struct dvb_demux_feed *feed);
75 static int write_ts_to_decoder(struct av7110 *av7110, int type, const u8 *buf, size_t len);
76
77
av7110_record_cb(struct dvb_filter_pes2ts * p2t,u8 * buf,size_t len)78 int av7110_record_cb(struct dvb_filter_pes2ts *p2t, u8 *buf, size_t len)
79 {
80 struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *) p2t->priv;
81
82 if (!(dvbdmxfeed->ts_type & TS_PACKET))
83 return 0;
84 if (buf[3] == 0xe0) // video PES do not have a length in TS
85 buf[4] = buf[5] = 0;
86 if (dvbdmxfeed->ts_type & TS_PAYLOAD_ONLY)
87 return dvbdmxfeed->cb.ts(buf, len, NULL, 0,
88 &dvbdmxfeed->feed.ts, NULL);
89 else
90 return dvb_filter_pes2ts(p2t, buf, len, 1);
91 }
92
dvb_filter_pes2ts_cb(void * priv,unsigned char * data)93 static int dvb_filter_pes2ts_cb(void *priv, unsigned char *data)
94 {
95 struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *) priv;
96
97 dvbdmxfeed->cb.ts(data, 188, NULL, 0,
98 &dvbdmxfeed->feed.ts, NULL);
99 return 0;
100 }
101
av7110_av_start_record(struct av7110 * av7110,int av,struct dvb_demux_feed * dvbdmxfeed)102 int av7110_av_start_record(struct av7110 *av7110, int av,
103 struct dvb_demux_feed *dvbdmxfeed)
104 {
105 int ret = 0;
106 struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
107
108 dprintk(2, "av7110:%p, , dvb_demux_feed:%p\n", av7110, dvbdmxfeed);
109
110 if (av7110->playing || (av7110->rec_mode & av))
111 return -EBUSY;
112 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
113 dvbdmx->recording = 1;
114 av7110->rec_mode |= av;
115
116 switch (av7110->rec_mode) {
117 case RP_AUDIO:
118 dvb_filter_pes2ts_init(&av7110->p2t[0],
119 dvbdmx->pesfilter[0]->pid,
120 dvb_filter_pes2ts_cb,
121 (void *) dvbdmx->pesfilter[0]);
122 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AudioPES, 0);
123 break;
124
125 case RP_VIDEO:
126 dvb_filter_pes2ts_init(&av7110->p2t[1],
127 dvbdmx->pesfilter[1]->pid,
128 dvb_filter_pes2ts_cb,
129 (void *) dvbdmx->pesfilter[1]);
130 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, VideoPES, 0);
131 break;
132
133 case RP_AV:
134 dvb_filter_pes2ts_init(&av7110->p2t[0],
135 dvbdmx->pesfilter[0]->pid,
136 dvb_filter_pes2ts_cb,
137 (void *) dvbdmx->pesfilter[0]);
138 dvb_filter_pes2ts_init(&av7110->p2t[1],
139 dvbdmx->pesfilter[1]->pid,
140 dvb_filter_pes2ts_cb,
141 (void *) dvbdmx->pesfilter[1]);
142 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AV_PES, 0);
143 break;
144 }
145 return ret;
146 }
147
av7110_av_start_play(struct av7110 * av7110,int av)148 int av7110_av_start_play(struct av7110 *av7110, int av)
149 {
150 int ret = 0;
151 dprintk(2, "av7110:%p, \n", av7110);
152
153 if (av7110->rec_mode)
154 return -EBUSY;
155 if (av7110->playing & av)
156 return -EBUSY;
157
158 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
159
160 if (av7110->playing == RP_NONE) {
161 av7110_ipack_reset(&av7110->ipack[0]);
162 av7110_ipack_reset(&av7110->ipack[1]);
163 }
164
165 av7110->playing |= av;
166 switch (av7110->playing) {
167 case RP_AUDIO:
168 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AudioPES, 0);
169 break;
170 case RP_VIDEO:
171 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, VideoPES, 0);
172 av7110->sinfo = 0;
173 break;
174 case RP_AV:
175 av7110->sinfo = 0;
176 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AV_PES, 0);
177 break;
178 }
179 return ret;
180 }
181
av7110_av_stop(struct av7110 * av7110,int av)182 int av7110_av_stop(struct av7110 *av7110, int av)
183 {
184 int ret = 0;
185 dprintk(2, "av7110:%p, \n", av7110);
186
187 if (!(av7110->playing & av) && !(av7110->rec_mode & av))
188 return 0;
189 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
190 if (av7110->playing) {
191 av7110->playing &= ~av;
192 switch (av7110->playing) {
193 case RP_AUDIO:
194 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AudioPES, 0);
195 break;
196 case RP_VIDEO:
197 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, VideoPES, 0);
198 break;
199 case RP_NONE:
200 ret = av7110_set_vidmode(av7110, av7110->vidmode);
201 break;
202 }
203 } else {
204 av7110->rec_mode &= ~av;
205 switch (av7110->rec_mode) {
206 case RP_AUDIO:
207 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AudioPES, 0);
208 break;
209 case RP_VIDEO:
210 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, VideoPES, 0);
211 break;
212 case RP_NONE:
213 break;
214 }
215 }
216 return ret;
217 }
218
219
av7110_pes_play(void * dest,struct dvb_ringbuffer * buf,int dlen)220 int av7110_pes_play(void *dest, struct dvb_ringbuffer *buf, int dlen)
221 {
222 int len;
223 u32 sync;
224 u16 blen;
225
226 if (!dlen) {
227 wake_up(&buf->queue);
228 return -1;
229 }
230 while (1) {
231 len = dvb_ringbuffer_avail(buf);
232 if (len < 6) {
233 wake_up(&buf->queue);
234 return -1;
235 }
236 sync = DVB_RINGBUFFER_PEEK(buf, 0) << 24;
237 sync |= DVB_RINGBUFFER_PEEK(buf, 1) << 16;
238 sync |= DVB_RINGBUFFER_PEEK(buf, 2) << 8;
239 sync |= DVB_RINGBUFFER_PEEK(buf, 3);
240
241 if (((sync &~ 0x0f) == 0x000001e0) ||
242 ((sync &~ 0x1f) == 0x000001c0) ||
243 (sync == 0x000001bd))
244 break;
245 printk("resync\n");
246 DVB_RINGBUFFER_SKIP(buf, 1);
247 }
248 blen = DVB_RINGBUFFER_PEEK(buf, 4) << 8;
249 blen |= DVB_RINGBUFFER_PEEK(buf, 5);
250 blen += 6;
251 if (len < blen || blen > dlen) {
252 //printk("buffer empty - avail %d blen %u dlen %d\n", len, blen, dlen);
253 wake_up(&buf->queue);
254 return -1;
255 }
256
257 dvb_ringbuffer_read(buf, dest, (size_t) blen);
258
259 dprintk(2, "pread=0x%08lx, pwrite=0x%08lx\n",
260 (unsigned long) buf->pread, (unsigned long) buf->pwrite);
261 wake_up(&buf->queue);
262 return blen;
263 }
264
265
av7110_set_volume(struct av7110 * av7110,unsigned int volleft,unsigned int volright)266 int av7110_set_volume(struct av7110 *av7110, unsigned int volleft,
267 unsigned int volright)
268 {
269 unsigned int vol, val, balance = 0;
270 int err;
271
272 dprintk(2, "av7110:%p, \n", av7110);
273
274 av7110->mixer.volume_left = volleft;
275 av7110->mixer.volume_right = volright;
276
277 switch (av7110->adac_type) {
278 case DVB_ADAC_TI:
279 volleft = (volleft * 256) / 1036;
280 volright = (volright * 256) / 1036;
281 if (volleft > 0x3f)
282 volleft = 0x3f;
283 if (volright > 0x3f)
284 volright = 0x3f;
285 if ((err = SendDAC(av7110, 3, 0x80 + volleft)))
286 return err;
287 return SendDAC(av7110, 4, volright);
288
289 case DVB_ADAC_CRYSTAL:
290 volleft = 127 - volleft / 2;
291 volright = 127 - volright / 2;
292 i2c_writereg(av7110, 0x20, 0x03, volleft);
293 i2c_writereg(av7110, 0x20, 0x04, volright);
294 return 0;
295
296 case DVB_ADAC_MSP34x0:
297 vol = (volleft > volright) ? volleft : volright;
298 val = (vol * 0x73 / 255) << 8;
299 if (vol > 0)
300 balance = ((volright - volleft) * 127) / vol;
301 msp_writereg(av7110, MSP_WR_DSP, 0x0001, balance << 8);
302 msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */
303 msp_writereg(av7110, MSP_WR_DSP, 0x0006, val); /* headphonesr */
304 return 0;
305
306 case DVB_ADAC_MSP34x5:
307 vol = (volleft > volright) ? volleft : volright;
308 val = (vol * 0x73 / 255) << 8;
309 if (vol > 0)
310 balance = ((volright - volleft) * 127) / vol;
311 msp_writereg(av7110, MSP_WR_DSP, 0x0001, balance << 8);
312 msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */
313 return 0;
314 }
315
316 return 0;
317 }
318
av7110_set_vidmode(struct av7110 * av7110,enum av7110_video_mode mode)319 int av7110_set_vidmode(struct av7110 *av7110, enum av7110_video_mode mode)
320 {
321 int ret;
322 dprintk(2, "av7110:%p, \n", av7110);
323
324 ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, LoadVidCode, 1, mode);
325
326 if (!ret && !av7110->playing) {
327 ret = ChangePIDs(av7110, av7110->pids[DMX_PES_VIDEO],
328 av7110->pids[DMX_PES_AUDIO],
329 av7110->pids[DMX_PES_TELETEXT],
330 0, av7110->pids[DMX_PES_PCR]);
331 if (!ret)
332 ret = av7110_fw_cmd(av7110, COMTYPE_PIDFILTER, Scan, 0);
333 }
334 return ret;
335 }
336
337
338 static enum av7110_video_mode sw2mode[16] = {
339 AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_NTSC,
340 AV7110_VIDEO_MODE_NTSC, AV7110_VIDEO_MODE_PAL,
341 AV7110_VIDEO_MODE_NTSC, AV7110_VIDEO_MODE_NTSC,
342 AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_NTSC,
343 AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
344 AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
345 AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
346 AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
347 };
348
get_video_format(struct av7110 * av7110,u8 * buf,int count)349 static int get_video_format(struct av7110 *av7110, u8 *buf, int count)
350 {
351 int i;
352 int hsize, vsize;
353 int sw;
354 u8 *p;
355 int ret = 0;
356
357 dprintk(2, "av7110:%p, \n", av7110);
358
359 if (av7110->sinfo)
360 return 0;
361 for (i = 7; i < count - 10; i++) {
362 p = buf + i;
363 if (p[0] || p[1] || p[2] != 0x01 || p[3] != 0xb3)
364 continue;
365 p += 4;
366 hsize = ((p[1] &0xF0) >> 4) | (p[0] << 4);
367 vsize = ((p[1] &0x0F) << 8) | (p[2]);
368 sw = (p[3] & 0x0F);
369 ret = av7110_set_vidmode(av7110, sw2mode[sw]);
370 if (!ret) {
371 dprintk(2, "playback %dx%d fr=%d\n", hsize, vsize, sw);
372 av7110->sinfo = 1;
373 }
374 break;
375 }
376 return ret;
377 }
378
379
380 /****************************************************************************
381 * I/O buffer management and control
382 ****************************************************************************/
383
aux_ring_buffer_write(struct dvb_ringbuffer * rbuf,const u8 * buf,unsigned long count)384 static inline long aux_ring_buffer_write(struct dvb_ringbuffer *rbuf,
385 const u8 *buf, unsigned long count)
386 {
387 unsigned long todo = count;
388 int free;
389
390 while (todo > 0) {
391 if (dvb_ringbuffer_free(rbuf) < 2048) {
392 if (wait_event_interruptible(rbuf->queue,
393 (dvb_ringbuffer_free(rbuf) >= 2048)))
394 return count - todo;
395 }
396 free = dvb_ringbuffer_free(rbuf);
397 if (free > todo)
398 free = todo;
399 dvb_ringbuffer_write(rbuf, buf, free);
400 todo -= free;
401 buf += free;
402 }
403
404 return count - todo;
405 }
406
play_video_cb(u8 * buf,int count,void * priv)407 static void play_video_cb(u8 *buf, int count, void *priv)
408 {
409 struct av7110 *av7110 = (struct av7110 *) priv;
410 dprintk(2, "av7110:%p, \n", av7110);
411
412 if ((buf[3] & 0xe0) == 0xe0) {
413 get_video_format(av7110, buf, count);
414 aux_ring_buffer_write(&av7110->avout, buf, count);
415 } else
416 aux_ring_buffer_write(&av7110->aout, buf, count);
417 }
418
play_audio_cb(u8 * buf,int count,void * priv)419 static void play_audio_cb(u8 *buf, int count, void *priv)
420 {
421 struct av7110 *av7110 = (struct av7110 *) priv;
422 dprintk(2, "av7110:%p, \n", av7110);
423
424 aux_ring_buffer_write(&av7110->aout, buf, count);
425 }
426
427
428 #define FREE_COND_TS (dvb_ringbuffer_free(rb) >= 4096)
429
ts_play(struct av7110 * av7110,const char __user * buf,unsigned long count,int nonblock,int type)430 static ssize_t ts_play(struct av7110 *av7110, const char __user *buf,
431 unsigned long count, int nonblock, int type)
432 {
433 struct dvb_ringbuffer *rb;
434 u8 *kb;
435 unsigned long todo = count;
436
437 dprintk(2, "%s: type %d cnt %lu\n", __func__, type, count);
438
439 rb = (type) ? &av7110->avout : &av7110->aout;
440 kb = av7110->kbuf[type];
441
442 if (!kb)
443 return -ENOBUFS;
444
445 if (nonblock && !FREE_COND_TS)
446 return -EWOULDBLOCK;
447
448 while (todo >= TS_SIZE) {
449 if (!FREE_COND_TS) {
450 if (nonblock)
451 return count - todo;
452 if (wait_event_interruptible(rb->queue, FREE_COND_TS))
453 return count - todo;
454 }
455 if (copy_from_user(kb, buf, TS_SIZE))
456 return -EFAULT;
457 write_ts_to_decoder(av7110, type, kb, TS_SIZE);
458 todo -= TS_SIZE;
459 buf += TS_SIZE;
460 }
461
462 return count - todo;
463 }
464
465
466 #define FREE_COND (dvb_ringbuffer_free(&av7110->avout) >= 20 * 1024 && \
467 dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)
468
dvb_play(struct av7110 * av7110,const char __user * buf,unsigned long count,int nonblock,int type)469 static ssize_t dvb_play(struct av7110 *av7110, const char __user *buf,
470 unsigned long count, int nonblock, int type)
471 {
472 unsigned long todo = count, n;
473 dprintk(2, "av7110:%p, \n", av7110);
474
475 if (!av7110->kbuf[type])
476 return -ENOBUFS;
477
478 if (nonblock && !FREE_COND)
479 return -EWOULDBLOCK;
480
481 while (todo > 0) {
482 if (!FREE_COND) {
483 if (nonblock)
484 return count - todo;
485 if (wait_event_interruptible(av7110->avout.queue,
486 FREE_COND))
487 return count - todo;
488 }
489 n = todo;
490 if (n > IPACKS * 2)
491 n = IPACKS * 2;
492 if (copy_from_user(av7110->kbuf[type], buf, n))
493 return -EFAULT;
494 av7110_ipack_instant_repack(av7110->kbuf[type], n,
495 &av7110->ipack[type]);
496 todo -= n;
497 buf += n;
498 }
499 return count - todo;
500 }
501
dvb_play_kernel(struct av7110 * av7110,const u8 * buf,unsigned long count,int nonblock,int type)502 static ssize_t dvb_play_kernel(struct av7110 *av7110, const u8 *buf,
503 unsigned long count, int nonblock, int type)
504 {
505 unsigned long todo = count, n;
506 dprintk(2, "av7110:%p, \n", av7110);
507
508 if (!av7110->kbuf[type])
509 return -ENOBUFS;
510
511 if (nonblock && !FREE_COND)
512 return -EWOULDBLOCK;
513
514 while (todo > 0) {
515 if (!FREE_COND) {
516 if (nonblock)
517 return count - todo;
518 if (wait_event_interruptible(av7110->avout.queue,
519 FREE_COND))
520 return count - todo;
521 }
522 n = todo;
523 if (n > IPACKS * 2)
524 n = IPACKS * 2;
525 av7110_ipack_instant_repack(buf, n, &av7110->ipack[type]);
526 todo -= n;
527 buf += n;
528 }
529 return count - todo;
530 }
531
dvb_aplay(struct av7110 * av7110,const char __user * buf,unsigned long count,int nonblock,int type)532 static ssize_t dvb_aplay(struct av7110 *av7110, const char __user *buf,
533 unsigned long count, int nonblock, int type)
534 {
535 unsigned long todo = count, n;
536 dprintk(2, "av7110:%p, \n", av7110);
537
538 if (!av7110->kbuf[type])
539 return -ENOBUFS;
540 if (nonblock && dvb_ringbuffer_free(&av7110->aout) < 20 * 1024)
541 return -EWOULDBLOCK;
542
543 while (todo > 0) {
544 if (dvb_ringbuffer_free(&av7110->aout) < 20 * 1024) {
545 if (nonblock)
546 return count - todo;
547 if (wait_event_interruptible(av7110->aout.queue,
548 (dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)))
549 return count-todo;
550 }
551 n = todo;
552 if (n > IPACKS * 2)
553 n = IPACKS * 2;
554 if (copy_from_user(av7110->kbuf[type], buf, n))
555 return -EFAULT;
556 av7110_ipack_instant_repack(av7110->kbuf[type], n,
557 &av7110->ipack[type]);
558 todo -= n;
559 buf += n;
560 }
561 return count - todo;
562 }
563
av7110_p2t_init(struct av7110_p2t * p,struct dvb_demux_feed * feed)564 void av7110_p2t_init(struct av7110_p2t *p, struct dvb_demux_feed *feed)
565 {
566 memset(p->pes, 0, TS_SIZE);
567 p->counter = 0;
568 p->pos = 0;
569 p->frags = 0;
570 if (feed)
571 p->feed = feed;
572 }
573
clear_p2t(struct av7110_p2t * p)574 static void clear_p2t(struct av7110_p2t *p)
575 {
576 memset(p->pes, 0, TS_SIZE);
577 // p->counter = 0;
578 p->pos = 0;
579 p->frags = 0;
580 }
581
582
find_pes_header(u8 const * buf,long int length,int * frags)583 static int find_pes_header(u8 const *buf, long int length, int *frags)
584 {
585 int c = 0;
586 int found = 0;
587
588 *frags = 0;
589
590 while (c < length - 3 && !found) {
591 if (buf[c] == 0x00 && buf[c + 1] == 0x00 &&
592 buf[c + 2] == 0x01) {
593 switch ( buf[c + 3] ) {
594 case PROG_STREAM_MAP:
595 case PRIVATE_STREAM2:
596 case PROG_STREAM_DIR:
597 case ECM_STREAM :
598 case EMM_STREAM :
599 case PADDING_STREAM :
600 case DSM_CC_STREAM :
601 case ISO13522_STREAM:
602 case PRIVATE_STREAM1:
603 case AUDIO_STREAM_S ... AUDIO_STREAM_E:
604 case VIDEO_STREAM_S ... VIDEO_STREAM_E:
605 found = 1;
606 break;
607
608 default:
609 c++;
610 break;
611 }
612 } else
613 c++;
614 }
615 if (c == length - 3 && !found) {
616 if (buf[length - 1] == 0x00)
617 *frags = 1;
618 if (buf[length - 2] == 0x00 &&
619 buf[length - 1] == 0x00)
620 *frags = 2;
621 if (buf[length - 3] == 0x00 &&
622 buf[length - 2] == 0x00 &&
623 buf[length - 1] == 0x01)
624 *frags = 3;
625 return -1;
626 }
627
628 return c;
629 }
630
av7110_p2t_write(u8 const * buf,long int length,u16 pid,struct av7110_p2t * p)631 void av7110_p2t_write(u8 const *buf, long int length, u16 pid, struct av7110_p2t *p)
632 {
633 int c, c2, l, add;
634 int check, rest;
635
636 c = 0;
637 c2 = 0;
638 if (p->frags){
639 check = 0;
640 switch(p->frags) {
641 case 1:
642 if (buf[c] == 0x00 && buf[c + 1] == 0x01) {
643 check = 1;
644 c += 2;
645 }
646 break;
647 case 2:
648 if (buf[c] == 0x01) {
649 check = 1;
650 c++;
651 }
652 break;
653 case 3:
654 check = 1;
655 }
656 if (check) {
657 switch (buf[c]) {
658 case PROG_STREAM_MAP:
659 case PRIVATE_STREAM2:
660 case PROG_STREAM_DIR:
661 case ECM_STREAM :
662 case EMM_STREAM :
663 case PADDING_STREAM :
664 case DSM_CC_STREAM :
665 case ISO13522_STREAM:
666 case PRIVATE_STREAM1:
667 case AUDIO_STREAM_S ... AUDIO_STREAM_E:
668 case VIDEO_STREAM_S ... VIDEO_STREAM_E:
669 p->pes[0] = 0x00;
670 p->pes[1] = 0x00;
671 p->pes[2] = 0x01;
672 p->pes[3] = buf[c];
673 p->pos = 4;
674 memcpy(p->pes + p->pos, buf + c, (TS_SIZE - 4) - p->pos);
675 c += (TS_SIZE - 4) - p->pos;
676 p_to_t(p->pes, (TS_SIZE - 4), pid, &p->counter, p->feed);
677 clear_p2t(p);
678 break;
679
680 default:
681 c = 0;
682 break;
683 }
684 }
685 p->frags = 0;
686 }
687
688 if (p->pos) {
689 c2 = find_pes_header(buf + c, length - c, &p->frags);
690 if (c2 >= 0 && c2 < (TS_SIZE - 4) - p->pos)
691 l = c2+c;
692 else
693 l = (TS_SIZE - 4) - p->pos;
694 memcpy(p->pes + p->pos, buf, l);
695 c += l;
696 p->pos += l;
697 p_to_t(p->pes, p->pos, pid, &p->counter, p->feed);
698 clear_p2t(p);
699 }
700
701 add = 0;
702 while (c < length) {
703 c2 = find_pes_header(buf + c + add, length - c - add, &p->frags);
704 if (c2 >= 0) {
705 c2 += c + add;
706 if (c2 > c){
707 p_to_t(buf + c, c2 - c, pid, &p->counter, p->feed);
708 c = c2;
709 clear_p2t(p);
710 add = 0;
711 } else
712 add = 1;
713 } else {
714 l = length - c;
715 rest = l % (TS_SIZE - 4);
716 l -= rest;
717 p_to_t(buf + c, l, pid, &p->counter, p->feed);
718 memcpy(p->pes, buf + c + l, rest);
719 p->pos = rest;
720 c = length;
721 }
722 }
723 }
724
725
write_ts_header2(u16 pid,u8 * counter,int pes_start,u8 * buf,u8 length)726 static int write_ts_header2(u16 pid, u8 *counter, int pes_start, u8 *buf, u8 length)
727 {
728 int i;
729 int c = 0;
730 int fill;
731 u8 tshead[4] = { 0x47, 0x00, 0x00, 0x10 };
732
733 fill = (TS_SIZE - 4) - length;
734 if (pes_start)
735 tshead[1] = 0x40;
736 if (fill)
737 tshead[3] = 0x30;
738 tshead[1] |= (u8)((pid & 0x1F00) >> 8);
739 tshead[2] |= (u8)(pid & 0x00FF);
740 tshead[3] |= ((*counter)++ & 0x0F);
741 memcpy(buf, tshead, 4);
742 c += 4;
743
744 if (fill) {
745 buf[4] = fill - 1;
746 c++;
747 if (fill > 1) {
748 buf[5] = 0x00;
749 c++;
750 }
751 for (i = 6; i < fill + 4; i++) {
752 buf[i] = 0xFF;
753 c++;
754 }
755 }
756
757 return c;
758 }
759
760
p_to_t(u8 const * buf,long int length,u16 pid,u8 * counter,struct dvb_demux_feed * feed)761 static void p_to_t(u8 const *buf, long int length, u16 pid, u8 *counter,
762 struct dvb_demux_feed *feed)
763 {
764 int l, pes_start;
765 u8 obuf[TS_SIZE];
766 long c = 0;
767
768 pes_start = 0;
769 if (length > 3 &&
770 buf[0] == 0x00 && buf[1] == 0x00 && buf[2] == 0x01)
771 switch (buf[3]) {
772 case PROG_STREAM_MAP:
773 case PRIVATE_STREAM2:
774 case PROG_STREAM_DIR:
775 case ECM_STREAM :
776 case EMM_STREAM :
777 case PADDING_STREAM :
778 case DSM_CC_STREAM :
779 case ISO13522_STREAM:
780 case PRIVATE_STREAM1:
781 case AUDIO_STREAM_S ... AUDIO_STREAM_E:
782 case VIDEO_STREAM_S ... VIDEO_STREAM_E:
783 pes_start = 1;
784 break;
785
786 default:
787 break;
788 }
789
790 while (c < length) {
791 memset(obuf, 0, TS_SIZE);
792 if (length - c >= (TS_SIZE - 4)){
793 l = write_ts_header2(pid, counter, pes_start,
794 obuf, (TS_SIZE - 4));
795 memcpy(obuf + l, buf + c, TS_SIZE - l);
796 c += TS_SIZE - l;
797 } else {
798 l = write_ts_header2(pid, counter, pes_start,
799 obuf, length - c);
800 memcpy(obuf + l, buf + c, TS_SIZE - l);
801 c = length;
802 }
803 feed->cb.ts(obuf, 188, NULL, 0, &feed->feed.ts, NULL);
804 pes_start = 0;
805 }
806 }
807
808
write_ts_to_decoder(struct av7110 * av7110,int type,const u8 * buf,size_t len)809 static int write_ts_to_decoder(struct av7110 *av7110, int type, const u8 *buf, size_t len)
810 {
811 struct ipack *ipack = &av7110->ipack[type];
812
813 if (buf[1] & TRANS_ERROR) {
814 av7110_ipack_reset(ipack);
815 return -1;
816 }
817
818 if (!(buf[3] & PAYLOAD))
819 return -1;
820
821 if (buf[1] & PAY_START)
822 av7110_ipack_flush(ipack);
823
824 if (buf[3] & ADAPT_FIELD) {
825 len -= buf[4] + 1;
826 buf += buf[4] + 1;
827 if (!len)
828 return 0;
829 }
830
831 av7110_ipack_instant_repack(buf + 4, len - 4, ipack);
832 return 0;
833 }
834
835
av7110_write_to_decoder(struct dvb_demux_feed * feed,const u8 * buf,size_t len)836 int av7110_write_to_decoder(struct dvb_demux_feed *feed, const u8 *buf, size_t len)
837 {
838 struct dvb_demux *demux = feed->demux;
839 struct av7110 *av7110 = (struct av7110 *) demux->priv;
840
841 dprintk(2, "av7110:%p, \n", av7110);
842
843 if (av7110->full_ts && demux->dmx.frontend->source != DMX_MEMORY_FE)
844 return 0;
845
846 switch (feed->pes_type) {
847 case 0:
848 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
849 return -EINVAL;
850 break;
851 case 1:
852 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY)
853 return -EINVAL;
854 break;
855 default:
856 return -1;
857 }
858
859 return write_ts_to_decoder(av7110, feed->pes_type, buf, len);
860 }
861
862
863
864 /******************************************************************************
865 * Video MPEG decoder events
866 ******************************************************************************/
dvb_video_add_event(struct av7110 * av7110,struct video_event * event)867 void dvb_video_add_event(struct av7110 *av7110, struct video_event *event)
868 {
869 struct dvb_video_events *events = &av7110->video_events;
870 int wp;
871
872 spin_lock_bh(&events->lock);
873
874 wp = (events->eventw + 1) % MAX_VIDEO_EVENT;
875 if (wp == events->eventr) {
876 events->overflow = 1;
877 events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT;
878 }
879
880 //FIXME: timestamp?
881 memcpy(&events->events[events->eventw], event, sizeof(struct video_event));
882 events->eventw = wp;
883
884 spin_unlock_bh(&events->lock);
885
886 wake_up_interruptible(&events->wait_queue);
887 }
888
889
dvb_video_get_event(struct av7110 * av7110,struct video_event * event,int flags)890 static int dvb_video_get_event (struct av7110 *av7110, struct video_event *event, int flags)
891 {
892 struct dvb_video_events *events = &av7110->video_events;
893
894 if (events->overflow) {
895 events->overflow = 0;
896 return -EOVERFLOW;
897 }
898 if (events->eventw == events->eventr) {
899 int ret;
900
901 if (flags & O_NONBLOCK)
902 return -EWOULDBLOCK;
903
904 ret = wait_event_interruptible(events->wait_queue,
905 events->eventw != events->eventr);
906 if (ret < 0)
907 return ret;
908 }
909
910 spin_lock_bh(&events->lock);
911
912 memcpy(event, &events->events[events->eventr],
913 sizeof(struct video_event));
914 events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT;
915
916 spin_unlock_bh(&events->lock);
917
918 return 0;
919 }
920
921 /******************************************************************************
922 * DVB device file operations
923 ******************************************************************************/
924
dvb_video_poll(struct file * file,poll_table * wait)925 static __poll_t dvb_video_poll(struct file *file, poll_table *wait)
926 {
927 struct dvb_device *dvbdev = file->private_data;
928 struct av7110 *av7110 = dvbdev->priv;
929 __poll_t mask = 0;
930
931 dprintk(2, "av7110:%p, \n", av7110);
932
933 if ((file->f_flags & O_ACCMODE) != O_RDONLY)
934 poll_wait(file, &av7110->avout.queue, wait);
935
936 poll_wait(file, &av7110->video_events.wait_queue, wait);
937
938 if (av7110->video_events.eventw != av7110->video_events.eventr)
939 mask = EPOLLPRI;
940
941 if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
942 if (av7110->playing) {
943 if (FREE_COND)
944 mask |= (EPOLLOUT | EPOLLWRNORM);
945 } else {
946 /* if not playing: may play if asked for */
947 mask |= (EPOLLOUT | EPOLLWRNORM);
948 }
949 }
950
951 return mask;
952 }
953
dvb_video_write(struct file * file,const char __user * buf,size_t count,loff_t * ppos)954 static ssize_t dvb_video_write(struct file *file, const char __user *buf,
955 size_t count, loff_t *ppos)
956 {
957 struct dvb_device *dvbdev = file->private_data;
958 struct av7110 *av7110 = dvbdev->priv;
959 unsigned char c;
960
961 dprintk(2, "av7110:%p, \n", av7110);
962
963 if ((file->f_flags & O_ACCMODE) == O_RDONLY)
964 return -EPERM;
965
966 if (av7110->videostate.stream_source != VIDEO_SOURCE_MEMORY)
967 return -EPERM;
968
969 if (get_user(c, buf))
970 return -EFAULT;
971 if (c == 0x47 && count % TS_SIZE == 0)
972 return ts_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 1);
973 else
974 return dvb_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 1);
975 }
976
dvb_audio_poll(struct file * file,poll_table * wait)977 static __poll_t dvb_audio_poll(struct file *file, poll_table *wait)
978 {
979 struct dvb_device *dvbdev = file->private_data;
980 struct av7110 *av7110 = dvbdev->priv;
981 __poll_t mask = 0;
982
983 dprintk(2, "av7110:%p, \n", av7110);
984
985 poll_wait(file, &av7110->aout.queue, wait);
986
987 if (av7110->playing) {
988 if (dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)
989 mask |= (EPOLLOUT | EPOLLWRNORM);
990 } else /* if not playing: may play if asked for */
991 mask = (EPOLLOUT | EPOLLWRNORM);
992
993 return mask;
994 }
995
dvb_audio_write(struct file * file,const char __user * buf,size_t count,loff_t * ppos)996 static ssize_t dvb_audio_write(struct file *file, const char __user *buf,
997 size_t count, loff_t *ppos)
998 {
999 struct dvb_device *dvbdev = file->private_data;
1000 struct av7110 *av7110 = dvbdev->priv;
1001 unsigned char c;
1002
1003 dprintk(2, "av7110:%p, \n", av7110);
1004
1005 if (av7110->audiostate.stream_source != AUDIO_SOURCE_MEMORY) {
1006 printk(KERN_ERR "not audio source memory\n");
1007 return -EPERM;
1008 }
1009
1010 if (get_user(c, buf))
1011 return -EFAULT;
1012 if (c == 0x47 && count % TS_SIZE == 0)
1013 return ts_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 0);
1014 else
1015 return dvb_aplay(av7110, buf, count, file->f_flags & O_NONBLOCK, 0);
1016 }
1017
1018 static u8 iframe_header[] = { 0x00, 0x00, 0x01, 0xe0, 0x00, 0x00, 0x80, 0x00, 0x00 };
1019
1020 #define MIN_IFRAME 400000
1021
play_iframe(struct av7110 * av7110,char __user * buf,unsigned int len,int nonblock)1022 static int play_iframe(struct av7110 *av7110, char __user *buf, unsigned int len, int nonblock)
1023 {
1024 unsigned i, n;
1025 int progressive = 0;
1026 int match = 0;
1027
1028 dprintk(2, "av7110:%p, \n", av7110);
1029
1030 if (len == 0)
1031 return 0;
1032
1033 if (!(av7110->playing & RP_VIDEO)) {
1034 if (av7110_av_start_play(av7110, RP_VIDEO) < 0)
1035 return -EBUSY;
1036 }
1037
1038 /* search in buf for instances of 00 00 01 b5 1? */
1039 for (i = 0; i < len; i++) {
1040 unsigned char c;
1041 if (get_user(c, buf + i))
1042 return -EFAULT;
1043 if (match == 5) {
1044 progressive = c & 0x08;
1045 match = 0;
1046 }
1047 if (c == 0x00) {
1048 match = (match == 1 || match == 2) ? 2 : 1;
1049 continue;
1050 }
1051 switch (match++) {
1052 case 2: if (c == 0x01)
1053 continue;
1054 break;
1055 case 3: if (c == 0xb5)
1056 continue;
1057 break;
1058 case 4: if ((c & 0xf0) == 0x10)
1059 continue;
1060 break;
1061 }
1062 match = 0;
1063 }
1064
1065 /* setting n always > 1, fixes problems when playing stillframes
1066 consisting of I- and P-Frames */
1067 n = MIN_IFRAME / len + 1;
1068
1069 /* FIXME: nonblock? */
1070 dvb_play_kernel(av7110, iframe_header, sizeof(iframe_header), 0, 1);
1071
1072 for (i = 0; i < n; i++)
1073 dvb_play(av7110, buf, len, 0, 1);
1074
1075 av7110_ipack_flush(&av7110->ipack[1]);
1076
1077 if (progressive)
1078 return vidcom(av7110, AV_VIDEO_CMD_FREEZE, 1);
1079 else
1080 return 0;
1081 }
1082
1083 #ifdef CONFIG_COMPAT
1084 struct compat_video_still_picture {
1085 compat_uptr_t iFrame;
1086 int32_t size;
1087 };
1088 #define VIDEO_STILLPICTURE32 _IOW('o', 30, struct compat_video_still_picture)
1089
1090 struct compat_video_event {
1091 __s32 type;
1092 /* unused, make sure to use atomic time for y2038 if it ever gets used */
1093 compat_long_t timestamp;
1094 union {
1095 video_size_t size;
1096 unsigned int frame_rate; /* in frames per 1000sec */
1097 unsigned char vsync_field; /* unknown/odd/even/progressive */
1098 } u;
1099 };
1100 #define VIDEO_GET_EVENT32 _IOR('o', 28, struct compat_video_event)
1101
dvb_compat_video_get_event(struct av7110 * av7110,struct compat_video_event * event,int flags)1102 static int dvb_compat_video_get_event(struct av7110 *av7110,
1103 struct compat_video_event *event, int flags)
1104 {
1105 struct video_event ev;
1106 int ret;
1107
1108 ret = dvb_video_get_event(av7110, &ev, flags);
1109
1110 *event = (struct compat_video_event) {
1111 .type = ev.type,
1112 .timestamp = ev.timestamp,
1113 .u.size = ev.u.size,
1114 };
1115
1116 return ret;
1117 }
1118 #endif
1119
dvb_video_ioctl(struct file * file,unsigned int cmd,void * parg)1120 static int dvb_video_ioctl(struct file *file,
1121 unsigned int cmd, void *parg)
1122 {
1123 struct dvb_device *dvbdev = file->private_data;
1124 struct av7110 *av7110 = dvbdev->priv;
1125 unsigned long arg = (unsigned long) parg;
1126 int ret = 0;
1127
1128 dprintk(1, "av7110:%p, cmd=%04x\n", av7110,cmd);
1129
1130 if ((file->f_flags & O_ACCMODE) == O_RDONLY) {
1131 if ( cmd != VIDEO_GET_STATUS && cmd != VIDEO_GET_EVENT &&
1132 cmd != VIDEO_GET_SIZE ) {
1133 return -EPERM;
1134 }
1135 }
1136
1137 if (mutex_lock_interruptible(&av7110->ioctl_mutex))
1138 return -ERESTARTSYS;
1139
1140 switch (cmd) {
1141 case VIDEO_STOP:
1142 av7110->videostate.play_state = VIDEO_STOPPED;
1143 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY)
1144 ret = av7110_av_stop(av7110, RP_VIDEO);
1145 else
1146 ret = vidcom(av7110, AV_VIDEO_CMD_STOP,
1147 av7110->videostate.video_blank ? 0 : 1);
1148 if (!ret)
1149 av7110->trickmode = TRICK_NONE;
1150 break;
1151
1152 case VIDEO_PLAY:
1153 av7110->trickmode = TRICK_NONE;
1154 if (av7110->videostate.play_state == VIDEO_FREEZED) {
1155 av7110->videostate.play_state = VIDEO_PLAYING;
1156 ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1157 if (ret)
1158 break;
1159 }
1160 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY) {
1161 if (av7110->playing == RP_AV) {
1162 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
1163 if (ret)
1164 break;
1165 av7110->playing &= ~RP_VIDEO;
1166 }
1167 ret = av7110_av_start_play(av7110, RP_VIDEO);
1168 }
1169 if (!ret)
1170 ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1171 if (!ret)
1172 av7110->videostate.play_state = VIDEO_PLAYING;
1173 break;
1174
1175 case VIDEO_FREEZE:
1176 av7110->videostate.play_state = VIDEO_FREEZED;
1177 if (av7110->playing & RP_VIDEO)
1178 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Pause, 0);
1179 else
1180 ret = vidcom(av7110, AV_VIDEO_CMD_FREEZE, 1);
1181 if (!ret)
1182 av7110->trickmode = TRICK_FREEZE;
1183 break;
1184
1185 case VIDEO_CONTINUE:
1186 if (av7110->playing & RP_VIDEO)
1187 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Continue, 0);
1188 if (!ret)
1189 ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1190 if (!ret) {
1191 av7110->videostate.play_state = VIDEO_PLAYING;
1192 av7110->trickmode = TRICK_NONE;
1193 }
1194 break;
1195
1196 case VIDEO_SELECT_SOURCE:
1197 av7110->videostate.stream_source = (video_stream_source_t) arg;
1198 break;
1199
1200 case VIDEO_SET_BLANK:
1201 av7110->videostate.video_blank = (int) arg;
1202 break;
1203
1204 case VIDEO_GET_STATUS:
1205 memcpy(parg, &av7110->videostate, sizeof(struct video_status));
1206 break;
1207
1208 #ifdef CONFIG_COMPAT
1209 case VIDEO_GET_EVENT32:
1210 ret = dvb_compat_video_get_event(av7110, parg, file->f_flags);
1211 break;
1212 #endif
1213
1214 case VIDEO_GET_EVENT:
1215 ret = dvb_video_get_event(av7110, parg, file->f_flags);
1216 break;
1217
1218 case VIDEO_GET_SIZE:
1219 memcpy(parg, &av7110->video_size, sizeof(video_size_t));
1220 break;
1221
1222 case VIDEO_SET_DISPLAY_FORMAT:
1223 {
1224 video_displayformat_t format = (video_displayformat_t) arg;
1225 switch (format) {
1226 case VIDEO_PAN_SCAN:
1227 av7110->display_panscan = VID_PAN_SCAN_PREF;
1228 break;
1229 case VIDEO_LETTER_BOX:
1230 av7110->display_panscan = VID_VC_AND_PS_PREF;
1231 break;
1232 case VIDEO_CENTER_CUT_OUT:
1233 av7110->display_panscan = VID_CENTRE_CUT_PREF;
1234 break;
1235 default:
1236 ret = -EINVAL;
1237 }
1238 if (ret < 0)
1239 break;
1240 av7110->videostate.display_format = format;
1241 ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetPanScanType,
1242 1, av7110->display_panscan);
1243 break;
1244 }
1245
1246 case VIDEO_SET_FORMAT:
1247 if (arg > 1) {
1248 ret = -EINVAL;
1249 break;
1250 }
1251 av7110->display_ar = arg;
1252 ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetMonitorType,
1253 1, (u16) arg);
1254 break;
1255
1256 #ifdef CONFIG_COMPAT
1257 case VIDEO_STILLPICTURE32:
1258 {
1259 struct compat_video_still_picture *pic =
1260 (struct compat_video_still_picture *) parg;
1261 av7110->videostate.stream_source = VIDEO_SOURCE_MEMORY;
1262 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1263 ret = play_iframe(av7110, compat_ptr(pic->iFrame),
1264 pic->size, file->f_flags & O_NONBLOCK);
1265 break;
1266 }
1267 #endif
1268
1269 case VIDEO_STILLPICTURE:
1270 {
1271 struct video_still_picture *pic =
1272 (struct video_still_picture *) parg;
1273 av7110->videostate.stream_source = VIDEO_SOURCE_MEMORY;
1274 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1275 ret = play_iframe(av7110, pic->iFrame, pic->size,
1276 file->f_flags & O_NONBLOCK);
1277 break;
1278 }
1279
1280 case VIDEO_FAST_FORWARD:
1281 //note: arg is ignored by firmware
1282 if (av7110->playing & RP_VIDEO)
1283 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1284 __Scan_I, 2, AV_PES, 0);
1285 else
1286 ret = vidcom(av7110, AV_VIDEO_CMD_FFWD, arg);
1287 if (!ret) {
1288 av7110->trickmode = TRICK_FAST;
1289 av7110->videostate.play_state = VIDEO_PLAYING;
1290 }
1291 break;
1292
1293 case VIDEO_SLOWMOTION:
1294 if (av7110->playing&RP_VIDEO) {
1295 if (av7110->trickmode != TRICK_SLOW)
1296 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Slow, 2, 0, 0);
1297 if (!ret)
1298 ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1299 } else {
1300 ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1301 if (!ret)
1302 ret = vidcom(av7110, AV_VIDEO_CMD_STOP, 0);
1303 if (!ret)
1304 ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1305 }
1306 if (!ret) {
1307 av7110->trickmode = TRICK_SLOW;
1308 av7110->videostate.play_state = VIDEO_PLAYING;
1309 }
1310 break;
1311
1312 case VIDEO_GET_CAPABILITIES:
1313 *(int *)parg = VIDEO_CAP_MPEG1 | VIDEO_CAP_MPEG2 |
1314 VIDEO_CAP_SYS | VIDEO_CAP_PROG;
1315 break;
1316
1317 case VIDEO_CLEAR_BUFFER:
1318 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1319 av7110_ipack_reset(&av7110->ipack[1]);
1320 if (av7110->playing == RP_AV) {
1321 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1322 __Play, 2, AV_PES, 0);
1323 if (ret)
1324 break;
1325 if (av7110->trickmode == TRICK_FAST)
1326 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1327 __Scan_I, 2, AV_PES, 0);
1328 if (av7110->trickmode == TRICK_SLOW) {
1329 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1330 __Slow, 2, 0, 0);
1331 if (!ret)
1332 ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1333 }
1334 if (av7110->trickmode == TRICK_FREEZE)
1335 ret = vidcom(av7110, AV_VIDEO_CMD_STOP, 1);
1336 }
1337 break;
1338
1339 case VIDEO_SET_STREAMTYPE:
1340 break;
1341
1342 default:
1343 ret = -ENOIOCTLCMD;
1344 break;
1345 }
1346
1347 mutex_unlock(&av7110->ioctl_mutex);
1348 return ret;
1349 }
1350
dvb_audio_ioctl(struct file * file,unsigned int cmd,void * parg)1351 static int dvb_audio_ioctl(struct file *file,
1352 unsigned int cmd, void *parg)
1353 {
1354 struct dvb_device *dvbdev = file->private_data;
1355 struct av7110 *av7110 = dvbdev->priv;
1356 unsigned long arg = (unsigned long) parg;
1357 int ret = 0;
1358
1359 dprintk(1, "av7110:%p, cmd=%04x\n", av7110,cmd);
1360
1361 if (((file->f_flags & O_ACCMODE) == O_RDONLY) &&
1362 (cmd != AUDIO_GET_STATUS))
1363 return -EPERM;
1364
1365 if (mutex_lock_interruptible(&av7110->ioctl_mutex))
1366 return -ERESTARTSYS;
1367
1368 switch (cmd) {
1369 case AUDIO_STOP:
1370 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
1371 ret = av7110_av_stop(av7110, RP_AUDIO);
1372 else
1373 ret = audcom(av7110, AUDIO_CMD_MUTE);
1374 if (!ret)
1375 av7110->audiostate.play_state = AUDIO_STOPPED;
1376 break;
1377
1378 case AUDIO_PLAY:
1379 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
1380 ret = av7110_av_start_play(av7110, RP_AUDIO);
1381 if (!ret)
1382 ret = audcom(av7110, AUDIO_CMD_UNMUTE);
1383 if (!ret)
1384 av7110->audiostate.play_state = AUDIO_PLAYING;
1385 break;
1386
1387 case AUDIO_PAUSE:
1388 ret = audcom(av7110, AUDIO_CMD_MUTE);
1389 if (!ret)
1390 av7110->audiostate.play_state = AUDIO_PAUSED;
1391 break;
1392
1393 case AUDIO_CONTINUE:
1394 if (av7110->audiostate.play_state == AUDIO_PAUSED) {
1395 av7110->audiostate.play_state = AUDIO_PLAYING;
1396 ret = audcom(av7110, AUDIO_CMD_UNMUTE | AUDIO_CMD_PCM16);
1397 }
1398 break;
1399
1400 case AUDIO_SELECT_SOURCE:
1401 av7110->audiostate.stream_source = (audio_stream_source_t) arg;
1402 break;
1403
1404 case AUDIO_SET_MUTE:
1405 {
1406 ret = audcom(av7110, arg ? AUDIO_CMD_MUTE : AUDIO_CMD_UNMUTE);
1407 if (!ret)
1408 av7110->audiostate.mute_state = (int) arg;
1409 break;
1410 }
1411
1412 case AUDIO_SET_AV_SYNC:
1413 av7110->audiostate.AV_sync_state = (int) arg;
1414 ret = audcom(av7110, arg ? AUDIO_CMD_SYNC_ON : AUDIO_CMD_SYNC_OFF);
1415 break;
1416
1417 case AUDIO_SET_BYPASS_MODE:
1418 if (FW_VERSION(av7110->arm_app) < 0x2621)
1419 ret = -EINVAL;
1420 av7110->audiostate.bypass_mode = (int)arg;
1421 break;
1422
1423 case AUDIO_CHANNEL_SELECT:
1424 av7110->audiostate.channel_select = (audio_channel_select_t) arg;
1425 switch(av7110->audiostate.channel_select) {
1426 case AUDIO_STEREO:
1427 ret = audcom(av7110, AUDIO_CMD_STEREO);
1428 if (!ret) {
1429 if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1430 i2c_writereg(av7110, 0x20, 0x02, 0x49);
1431 else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1432 msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0220);
1433 }
1434 break;
1435 case AUDIO_MONO_LEFT:
1436 ret = audcom(av7110, AUDIO_CMD_MONO_L);
1437 if (!ret) {
1438 if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1439 i2c_writereg(av7110, 0x20, 0x02, 0x4a);
1440 else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1441 msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0200);
1442 }
1443 break;
1444 case AUDIO_MONO_RIGHT:
1445 ret = audcom(av7110, AUDIO_CMD_MONO_R);
1446 if (!ret) {
1447 if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1448 i2c_writereg(av7110, 0x20, 0x02, 0x45);
1449 else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1450 msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0210);
1451 }
1452 break;
1453 default:
1454 ret = -EINVAL;
1455 break;
1456 }
1457 break;
1458
1459 case AUDIO_GET_STATUS:
1460 memcpy(parg, &av7110->audiostate, sizeof(struct audio_status));
1461 break;
1462
1463 case AUDIO_GET_CAPABILITIES:
1464 if (FW_VERSION(av7110->arm_app) < 0x2621)
1465 *(unsigned int *)parg = AUDIO_CAP_LPCM | AUDIO_CAP_MP1 | AUDIO_CAP_MP2;
1466 else
1467 *(unsigned int *)parg = AUDIO_CAP_LPCM | AUDIO_CAP_DTS | AUDIO_CAP_AC3 |
1468 AUDIO_CAP_MP1 | AUDIO_CAP_MP2;
1469 break;
1470
1471 case AUDIO_CLEAR_BUFFER:
1472 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1473 av7110_ipack_reset(&av7110->ipack[0]);
1474 if (av7110->playing == RP_AV)
1475 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1476 __Play, 2, AV_PES, 0);
1477 break;
1478
1479 case AUDIO_SET_ID:
1480 break;
1481
1482 case AUDIO_SET_MIXER:
1483 {
1484 struct audio_mixer *amix = (struct audio_mixer *)parg;
1485 ret = av7110_set_volume(av7110, amix->volume_left, amix->volume_right);
1486 break;
1487 }
1488
1489 case AUDIO_SET_STREAMTYPE:
1490 break;
1491
1492 default:
1493 ret = -ENOIOCTLCMD;
1494 }
1495
1496 mutex_unlock(&av7110->ioctl_mutex);
1497 return ret;
1498 }
1499
1500
dvb_video_open(struct inode * inode,struct file * file)1501 static int dvb_video_open(struct inode *inode, struct file *file)
1502 {
1503 struct dvb_device *dvbdev = file->private_data;
1504 struct av7110 *av7110 = dvbdev->priv;
1505 int err;
1506
1507 dprintk(2, "av7110:%p, \n", av7110);
1508
1509 if ((err = dvb_generic_open(inode, file)) < 0)
1510 return err;
1511
1512 if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
1513 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1514 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1515 av7110->video_blank = 1;
1516 av7110->audiostate.AV_sync_state = 1;
1517 av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX;
1518
1519 /* empty event queue */
1520 av7110->video_events.eventr = av7110->video_events.eventw = 0;
1521 }
1522
1523 return 0;
1524 }
1525
dvb_video_release(struct inode * inode,struct file * file)1526 static int dvb_video_release(struct inode *inode, struct file *file)
1527 {
1528 struct dvb_device *dvbdev = file->private_data;
1529 struct av7110 *av7110 = dvbdev->priv;
1530
1531 dprintk(2, "av7110:%p, \n", av7110);
1532
1533 if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
1534 av7110_av_stop(av7110, RP_VIDEO);
1535 }
1536
1537 return dvb_generic_release(inode, file);
1538 }
1539
dvb_audio_open(struct inode * inode,struct file * file)1540 static int dvb_audio_open(struct inode *inode, struct file *file)
1541 {
1542 struct dvb_device *dvbdev = file->private_data;
1543 struct av7110 *av7110 = dvbdev->priv;
1544 int err = dvb_generic_open(inode, file);
1545
1546 dprintk(2, "av7110:%p, \n", av7110);
1547
1548 if (err < 0)
1549 return err;
1550 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1551 av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX;
1552 return 0;
1553 }
1554
dvb_audio_release(struct inode * inode,struct file * file)1555 static int dvb_audio_release(struct inode *inode, struct file *file)
1556 {
1557 struct dvb_device *dvbdev = file->private_data;
1558 struct av7110 *av7110 = dvbdev->priv;
1559
1560 dprintk(2, "av7110:%p, \n", av7110);
1561
1562 av7110_av_stop(av7110, RP_AUDIO);
1563 return dvb_generic_release(inode, file);
1564 }
1565
1566
1567
1568 /******************************************************************************
1569 * driver registration
1570 ******************************************************************************/
1571
1572 static const struct file_operations dvb_video_fops = {
1573 .owner = THIS_MODULE,
1574 .write = dvb_video_write,
1575 .unlocked_ioctl = dvb_generic_ioctl,
1576 .compat_ioctl = dvb_generic_ioctl,
1577 .open = dvb_video_open,
1578 .release = dvb_video_release,
1579 .poll = dvb_video_poll,
1580 .llseek = noop_llseek,
1581 };
1582
1583 static struct dvb_device dvbdev_video = {
1584 .priv = NULL,
1585 .users = 6,
1586 .readers = 5, /* arbitrary */
1587 .writers = 1,
1588 .fops = &dvb_video_fops,
1589 .kernel_ioctl = dvb_video_ioctl,
1590 };
1591
1592 static const struct file_operations dvb_audio_fops = {
1593 .owner = THIS_MODULE,
1594 .write = dvb_audio_write,
1595 .unlocked_ioctl = dvb_generic_ioctl,
1596 .compat_ioctl = dvb_generic_ioctl,
1597 .open = dvb_audio_open,
1598 .release = dvb_audio_release,
1599 .poll = dvb_audio_poll,
1600 .llseek = noop_llseek,
1601 };
1602
1603 static struct dvb_device dvbdev_audio = {
1604 .priv = NULL,
1605 .users = 1,
1606 .writers = 1,
1607 .fops = &dvb_audio_fops,
1608 .kernel_ioctl = dvb_audio_ioctl,
1609 };
1610
1611
av7110_av_register(struct av7110 * av7110)1612 int av7110_av_register(struct av7110 *av7110)
1613 {
1614 av7110->audiostate.AV_sync_state = 0;
1615 av7110->audiostate.mute_state = 0;
1616 av7110->audiostate.play_state = AUDIO_STOPPED;
1617 av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX;
1618 av7110->audiostate.channel_select = AUDIO_STEREO;
1619 av7110->audiostate.bypass_mode = 0;
1620
1621 av7110->videostate.video_blank = 0;
1622 av7110->videostate.play_state = VIDEO_STOPPED;
1623 av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX;
1624 av7110->videostate.video_format = VIDEO_FORMAT_4_3;
1625 av7110->videostate.display_format = VIDEO_LETTER_BOX;
1626 av7110->display_ar = VIDEO_FORMAT_4_3;
1627 av7110->display_panscan = VID_VC_AND_PS_PREF;
1628
1629 init_waitqueue_head(&av7110->video_events.wait_queue);
1630 spin_lock_init(&av7110->video_events.lock);
1631 av7110->video_events.eventw = av7110->video_events.eventr = 0;
1632 av7110->video_events.overflow = 0;
1633 memset(&av7110->video_size, 0, sizeof (video_size_t));
1634
1635 dvb_register_device(&av7110->dvb_adapter, &av7110->video_dev,
1636 &dvbdev_video, av7110, DVB_DEVICE_VIDEO, 0);
1637
1638 dvb_register_device(&av7110->dvb_adapter, &av7110->audio_dev,
1639 &dvbdev_audio, av7110, DVB_DEVICE_AUDIO, 0);
1640
1641 return 0;
1642 }
1643
av7110_av_unregister(struct av7110 * av7110)1644 void av7110_av_unregister(struct av7110 *av7110)
1645 {
1646 dvb_unregister_device(av7110->audio_dev);
1647 dvb_unregister_device(av7110->video_dev);
1648 }
1649
av7110_av_init(struct av7110 * av7110)1650 int av7110_av_init(struct av7110 *av7110)
1651 {
1652 void (*play[])(u8 *, int, void *) = { play_audio_cb, play_video_cb };
1653 int i, ret;
1654
1655 for (i = 0; i < 2; i++) {
1656 struct ipack *ipack = av7110->ipack + i;
1657
1658 ret = av7110_ipack_init(ipack, IPACKS, play[i]);
1659 if (ret < 0) {
1660 if (i)
1661 av7110_ipack_free(--ipack);
1662 goto out;
1663 }
1664 ipack->data = av7110;
1665 }
1666
1667 dvb_ringbuffer_init(&av7110->avout, av7110->iobuf, AVOUTLEN);
1668 dvb_ringbuffer_init(&av7110->aout, av7110->iobuf + AVOUTLEN, AOUTLEN);
1669
1670 av7110->kbuf[0] = (u8 *)(av7110->iobuf + AVOUTLEN + AOUTLEN + BMPLEN);
1671 av7110->kbuf[1] = av7110->kbuf[0] + 2 * IPACKS;
1672 out:
1673 return ret;
1674 }
1675
av7110_av_exit(struct av7110 * av7110)1676 void av7110_av_exit(struct av7110 *av7110)
1677 {
1678 av7110_ipack_free(&av7110->ipack[0]);
1679 av7110_ipack_free(&av7110->ipack[1]);
1680 }
1681
