2 * av7110_av.c: audio and video MPEG decoder stuff
4 * Copyright (C) 1999-2002 Ralph Metzler
5 * & Marcus Metzler for convergence integrated media GmbH
7 * originally based on code by:
8 * Copyright (C) 1998,1999 Christian Theiss <mistert@rz.fh-augsburg.de>
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.
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.
21 * To obtain the license, point your browser to
22 * http://www.gnu.org/copyleft/gpl.html
25 * the project's page is at https://linuxtv.org
28 #include <linux/types.h>
29 #include <linux/kernel.h>
30 #include <linux/string.h>
31 #include <linux/delay.h>
35 #include "av7110_hw.h"
36 #include "av7110_av.h"
37 #include "av7110_ipack.h"
39 /* MPEG-2 (ISO 13818 / H.222.0) stream types */
40 #define PROG_STREAM_MAP 0xBC
41 #define PRIVATE_STREAM1 0xBD
42 #define PADDING_STREAM 0xBE
43 #define PRIVATE_STREAM2 0xBF
44 #define AUDIO_STREAM_S 0xC0
45 #define AUDIO_STREAM_E 0xDF
46 #define VIDEO_STREAM_S 0xE0
47 #define VIDEO_STREAM_E 0xEF
48 #define ECM_STREAM 0xF0
49 #define EMM_STREAM 0xF1
50 #define DSM_CC_STREAM 0xF2
51 #define ISO13522_STREAM 0xF3
52 #define PROG_STREAM_DIR 0xFF
54 #define PTS_DTS_FLAGS 0xC0
60 #define TRANS_ERROR 0x80
61 #define PAY_START 0x40
62 #define TRANS_PRIO 0x20
63 #define PID_MASK_HI 0x1F
65 #define TRANS_SCRMBL1 0x80
66 #define TRANS_SCRMBL2 0x40
67 #define ADAPT_FIELD 0x20
69 #define COUNT_MASK 0x0F
72 #define DISCON_IND 0x80
73 #define RAND_ACC_IND 0x40
74 #define ES_PRI_IND 0x20
76 #define OPCR_FLAG 0x08
77 #define SPLICE_FLAG 0x04
78 #define TRANS_PRIV 0x02
79 #define ADAP_EXT_FLAG 0x01
81 // adaptation extension flags
83 #define PIECE_RATE 0x40
84 #define SEAM_SPLICE 0x20
87 static void p_to_t(u8 const *buf, long int length, u16 pid,
88 u8 *counter, struct dvb_demux_feed *feed);
89 static int write_ts_to_decoder(struct av7110 *av7110, int type, const u8 *buf, size_t len);
92 int av7110_record_cb(struct dvb_filter_pes2ts *p2t, u8 *buf, size_t len)
94 struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *) p2t->priv;
96 if (!(dvbdmxfeed->ts_type & TS_PACKET))
98 if (buf[3] == 0xe0) // video PES do not have a length in TS
100 if (dvbdmxfeed->ts_type & TS_PAYLOAD_ONLY)
101 return dvbdmxfeed->cb.ts(buf, len, NULL, 0,
102 &dvbdmxfeed->feed.ts);
104 return dvb_filter_pes2ts(p2t, buf, len, 1);
107 static int dvb_filter_pes2ts_cb(void *priv, unsigned char *data)
109 struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *) priv;
111 dvbdmxfeed->cb.ts(data, 188, NULL, 0,
112 &dvbdmxfeed->feed.ts);
116 int av7110_av_start_record(struct av7110 *av7110, int av,
117 struct dvb_demux_feed *dvbdmxfeed)
120 struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
122 dprintk(2, "av7110:%p, , dvb_demux_feed:%p\n", av7110, dvbdmxfeed);
124 if (av7110->playing || (av7110->rec_mode & av))
126 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
127 dvbdmx->recording = 1;
128 av7110->rec_mode |= av;
130 switch (av7110->rec_mode) {
132 dvb_filter_pes2ts_init(&av7110->p2t[0],
133 dvbdmx->pesfilter[0]->pid,
134 dvb_filter_pes2ts_cb,
135 (void *) dvbdmx->pesfilter[0]);
136 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AudioPES, 0);
140 dvb_filter_pes2ts_init(&av7110->p2t[1],
141 dvbdmx->pesfilter[1]->pid,
142 dvb_filter_pes2ts_cb,
143 (void *) dvbdmx->pesfilter[1]);
144 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, VideoPES, 0);
148 dvb_filter_pes2ts_init(&av7110->p2t[0],
149 dvbdmx->pesfilter[0]->pid,
150 dvb_filter_pes2ts_cb,
151 (void *) dvbdmx->pesfilter[0]);
152 dvb_filter_pes2ts_init(&av7110->p2t[1],
153 dvbdmx->pesfilter[1]->pid,
154 dvb_filter_pes2ts_cb,
155 (void *) dvbdmx->pesfilter[1]);
156 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AV_PES, 0);
162 int av7110_av_start_play(struct av7110 *av7110, int av)
165 dprintk(2, "av7110:%p, \n", av7110);
167 if (av7110->rec_mode)
169 if (av7110->playing & av)
172 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
174 if (av7110->playing == RP_NONE) {
175 av7110_ipack_reset(&av7110->ipack[0]);
176 av7110_ipack_reset(&av7110->ipack[1]);
179 av7110->playing |= av;
180 switch (av7110->playing) {
182 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AudioPES, 0);
185 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, VideoPES, 0);
190 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AV_PES, 0);
196 int av7110_av_stop(struct av7110 *av7110, int av)
199 dprintk(2, "av7110:%p, \n", av7110);
201 if (!(av7110->playing & av) && !(av7110->rec_mode & av))
203 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
204 if (av7110->playing) {
205 av7110->playing &= ~av;
206 switch (av7110->playing) {
208 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AudioPES, 0);
211 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, VideoPES, 0);
214 ret = av7110_set_vidmode(av7110, av7110->vidmode);
218 av7110->rec_mode &= ~av;
219 switch (av7110->rec_mode) {
221 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AudioPES, 0);
224 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, VideoPES, 0);
234 int av7110_pes_play(void *dest, struct dvb_ringbuffer *buf, int dlen)
241 wake_up(&buf->queue);
245 len = dvb_ringbuffer_avail(buf);
247 wake_up(&buf->queue);
250 sync = DVB_RINGBUFFER_PEEK(buf, 0) << 24;
251 sync |= DVB_RINGBUFFER_PEEK(buf, 1) << 16;
252 sync |= DVB_RINGBUFFER_PEEK(buf, 2) << 8;
253 sync |= DVB_RINGBUFFER_PEEK(buf, 3);
255 if (((sync &~ 0x0f) == 0x000001e0) ||
256 ((sync &~ 0x1f) == 0x000001c0) ||
257 (sync == 0x000001bd))
260 DVB_RINGBUFFER_SKIP(buf, 1);
262 blen = DVB_RINGBUFFER_PEEK(buf, 4) << 8;
263 blen |= DVB_RINGBUFFER_PEEK(buf, 5);
265 if (len < blen || blen > dlen) {
266 //printk("buffer empty - avail %d blen %u dlen %d\n", len, blen, dlen);
267 wake_up(&buf->queue);
271 dvb_ringbuffer_read(buf, dest, (size_t) blen);
273 dprintk(2, "pread=0x%08lx, pwrite=0x%08lx\n",
274 (unsigned long) buf->pread, (unsigned long) buf->pwrite);
275 wake_up(&buf->queue);
280 int av7110_set_volume(struct av7110 *av7110, unsigned int volleft,
281 unsigned int volright)
283 unsigned int vol, val, balance = 0;
286 dprintk(2, "av7110:%p, \n", av7110);
288 av7110->mixer.volume_left = volleft;
289 av7110->mixer.volume_right = volright;
291 switch (av7110->adac_type) {
293 volleft = (volleft * 256) / 1036;
294 volright = (volright * 256) / 1036;
299 if ((err = SendDAC(av7110, 3, 0x80 + volleft)))
301 return SendDAC(av7110, 4, volright);
303 case DVB_ADAC_CRYSTAL:
304 volleft = 127 - volleft / 2;
305 volright = 127 - volright / 2;
306 i2c_writereg(av7110, 0x20, 0x03, volleft);
307 i2c_writereg(av7110, 0x20, 0x04, volright);
310 case DVB_ADAC_MSP34x0:
311 vol = (volleft > volright) ? volleft : volright;
312 val = (vol * 0x73 / 255) << 8;
314 balance = ((volright - volleft) * 127) / vol;
315 msp_writereg(av7110, MSP_WR_DSP, 0x0001, balance << 8);
316 msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */
317 msp_writereg(av7110, MSP_WR_DSP, 0x0006, val); /* headphonesr */
320 case DVB_ADAC_MSP34x5:
321 vol = (volleft > volright) ? volleft : volright;
322 val = (vol * 0x73 / 255) << 8;
324 balance = ((volright - volleft) * 127) / vol;
325 msp_writereg(av7110, MSP_WR_DSP, 0x0001, balance << 8);
326 msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */
333 int av7110_set_vidmode(struct av7110 *av7110, enum av7110_video_mode mode)
336 dprintk(2, "av7110:%p, \n", av7110);
338 ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, LoadVidCode, 1, mode);
340 if (!ret && !av7110->playing) {
341 ret = ChangePIDs(av7110, av7110->pids[DMX_PES_VIDEO],
342 av7110->pids[DMX_PES_AUDIO],
343 av7110->pids[DMX_PES_TELETEXT],
344 0, av7110->pids[DMX_PES_PCR]);
346 ret = av7110_fw_cmd(av7110, COMTYPE_PIDFILTER, Scan, 0);
352 static enum av7110_video_mode sw2mode[16] = {
353 AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_NTSC,
354 AV7110_VIDEO_MODE_NTSC, AV7110_VIDEO_MODE_PAL,
355 AV7110_VIDEO_MODE_NTSC, AV7110_VIDEO_MODE_NTSC,
356 AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_NTSC,
357 AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
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,
363 static int get_video_format(struct av7110 *av7110, u8 *buf, int count)
371 dprintk(2, "av7110:%p, \n", av7110);
375 for (i = 7; i < count - 10; i++) {
377 if (p[0] || p[1] || p[2] != 0x01 || p[3] != 0xb3)
380 hsize = ((p[1] &0xF0) >> 4) | (p[0] << 4);
381 vsize = ((p[1] &0x0F) << 8) | (p[2]);
383 ret = av7110_set_vidmode(av7110, sw2mode[sw]);
385 dprintk(2, "playback %dx%d fr=%d\n", hsize, vsize, sw);
394 /****************************************************************************
395 * I/O buffer management and control
396 ****************************************************************************/
398 static inline long aux_ring_buffer_write(struct dvb_ringbuffer *rbuf,
399 const u8 *buf, unsigned long count)
401 unsigned long todo = count;
405 if (dvb_ringbuffer_free(rbuf) < 2048) {
406 if (wait_event_interruptible(rbuf->queue,
407 (dvb_ringbuffer_free(rbuf) >= 2048)))
410 free = dvb_ringbuffer_free(rbuf);
413 dvb_ringbuffer_write(rbuf, buf, free);
421 static void play_video_cb(u8 *buf, int count, void *priv)
423 struct av7110 *av7110 = (struct av7110 *) priv;
424 dprintk(2, "av7110:%p, \n", av7110);
426 if ((buf[3] & 0xe0) == 0xe0) {
427 get_video_format(av7110, buf, count);
428 aux_ring_buffer_write(&av7110->avout, buf, count);
430 aux_ring_buffer_write(&av7110->aout, buf, count);
433 static void play_audio_cb(u8 *buf, int count, void *priv)
435 struct av7110 *av7110 = (struct av7110 *) priv;
436 dprintk(2, "av7110:%p, \n", av7110);
438 aux_ring_buffer_write(&av7110->aout, buf, count);
442 #define FREE_COND_TS (dvb_ringbuffer_free(rb) >= 4096)
444 static ssize_t ts_play(struct av7110 *av7110, const char __user *buf,
445 unsigned long count, int nonblock, int type)
447 struct dvb_ringbuffer *rb;
449 unsigned long todo = count;
451 dprintk(2, "%s: type %d cnt %lu\n", __func__, type, count);
453 rb = (type) ? &av7110->avout : &av7110->aout;
454 kb = av7110->kbuf[type];
459 if (nonblock && !FREE_COND_TS)
462 while (todo >= TS_SIZE) {
466 if (wait_event_interruptible(rb->queue, FREE_COND_TS))
469 if (copy_from_user(kb, buf, TS_SIZE))
471 write_ts_to_decoder(av7110, type, kb, TS_SIZE);
480 #define FREE_COND (dvb_ringbuffer_free(&av7110->avout) >= 20 * 1024 && \
481 dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)
483 static ssize_t dvb_play(struct av7110 *av7110, const char __user *buf,
484 unsigned long count, int nonblock, int type)
486 unsigned long todo = count, n;
487 dprintk(2, "av7110:%p, \n", av7110);
489 if (!av7110->kbuf[type])
492 if (nonblock && !FREE_COND)
499 if (wait_event_interruptible(av7110->avout.queue,
506 if (copy_from_user(av7110->kbuf[type], buf, n))
508 av7110_ipack_instant_repack(av7110->kbuf[type], n,
509 &av7110->ipack[type]);
516 static ssize_t dvb_play_kernel(struct av7110 *av7110, const u8 *buf,
517 unsigned long count, int nonblock, int type)
519 unsigned long todo = count, n;
520 dprintk(2, "av7110:%p, \n", av7110);
522 if (!av7110->kbuf[type])
525 if (nonblock && !FREE_COND)
532 if (wait_event_interruptible(av7110->avout.queue,
539 av7110_ipack_instant_repack(buf, n, &av7110->ipack[type]);
546 static ssize_t dvb_aplay(struct av7110 *av7110, const char __user *buf,
547 unsigned long count, int nonblock, int type)
549 unsigned long todo = count, n;
550 dprintk(2, "av7110:%p, \n", av7110);
552 if (!av7110->kbuf[type])
554 if (nonblock && dvb_ringbuffer_free(&av7110->aout) < 20 * 1024)
558 if (dvb_ringbuffer_free(&av7110->aout) < 20 * 1024) {
561 if (wait_event_interruptible(av7110->aout.queue,
562 (dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)))
568 if (copy_from_user(av7110->kbuf[type], buf, n))
570 av7110_ipack_instant_repack(av7110->kbuf[type], n,
571 &av7110->ipack[type]);
578 void av7110_p2t_init(struct av7110_p2t *p, struct dvb_demux_feed *feed)
580 memset(p->pes, 0, TS_SIZE);
588 static void clear_p2t(struct av7110_p2t *p)
590 memset(p->pes, 0, TS_SIZE);
597 static int find_pes_header(u8 const *buf, long int length, int *frags)
604 while (c < length - 3 && !found) {
605 if (buf[c] == 0x00 && buf[c + 1] == 0x00 &&
606 buf[c + 2] == 0x01) {
607 switch ( buf[c + 3] ) {
608 case PROG_STREAM_MAP:
609 case PRIVATE_STREAM2:
610 case PROG_STREAM_DIR:
613 case PADDING_STREAM :
615 case ISO13522_STREAM:
616 case PRIVATE_STREAM1:
617 case AUDIO_STREAM_S ... AUDIO_STREAM_E:
618 case VIDEO_STREAM_S ... VIDEO_STREAM_E:
629 if (c == length - 3 && !found) {
630 if (buf[length - 1] == 0x00)
632 if (buf[length - 2] == 0x00 &&
633 buf[length - 1] == 0x00)
635 if (buf[length - 3] == 0x00 &&
636 buf[length - 2] == 0x00 &&
637 buf[length - 1] == 0x01)
645 void av7110_p2t_write(u8 const *buf, long int length, u16 pid, struct av7110_p2t *p)
656 if (buf[c] == 0x00 && buf[c + 1] == 0x01) {
662 if (buf[c] == 0x01) {
672 case PROG_STREAM_MAP:
673 case PRIVATE_STREAM2:
674 case PROG_STREAM_DIR:
677 case PADDING_STREAM :
679 case ISO13522_STREAM:
680 case PRIVATE_STREAM1:
681 case AUDIO_STREAM_S ... AUDIO_STREAM_E:
682 case VIDEO_STREAM_S ... VIDEO_STREAM_E:
688 memcpy(p->pes + p->pos, buf + c, (TS_SIZE - 4) - p->pos);
689 c += (TS_SIZE - 4) - p->pos;
690 p_to_t(p->pes, (TS_SIZE - 4), pid, &p->counter, p->feed);
703 c2 = find_pes_header(buf + c, length - c, &p->frags);
704 if (c2 >= 0 && c2 < (TS_SIZE - 4) - p->pos)
707 l = (TS_SIZE - 4) - p->pos;
708 memcpy(p->pes + p->pos, buf, l);
711 p_to_t(p->pes, p->pos, pid, &p->counter, p->feed);
717 c2 = find_pes_header(buf + c + add, length - c - add, &p->frags);
721 p_to_t(buf + c, c2 - c, pid, &p->counter, p->feed);
729 rest = l % (TS_SIZE - 4);
731 p_to_t(buf + c, l, pid, &p->counter, p->feed);
732 memcpy(p->pes, buf + c + l, rest);
740 static int write_ts_header2(u16 pid, u8 *counter, int pes_start, u8 *buf, u8 length)
745 u8 tshead[4] = { 0x47, 0x00, 0x00, 0x10 };
747 fill = (TS_SIZE - 4) - length;
752 tshead[1] |= (u8)((pid & 0x1F00) >> 8);
753 tshead[2] |= (u8)(pid & 0x00FF);
754 tshead[3] |= ((*counter)++ & 0x0F);
755 memcpy(buf, tshead, 4);
765 for (i = 6; i < fill + 4; i++) {
775 static void p_to_t(u8 const *buf, long int length, u16 pid, u8 *counter,
776 struct dvb_demux_feed *feed)
784 buf[0] == 0x00 && buf[1] == 0x00 && buf[2] == 0x01)
786 case PROG_STREAM_MAP:
787 case PRIVATE_STREAM2:
788 case PROG_STREAM_DIR:
791 case PADDING_STREAM :
793 case ISO13522_STREAM:
794 case PRIVATE_STREAM1:
795 case AUDIO_STREAM_S ... AUDIO_STREAM_E:
796 case VIDEO_STREAM_S ... VIDEO_STREAM_E:
805 memset(obuf, 0, TS_SIZE);
806 if (length - c >= (TS_SIZE - 4)){
807 l = write_ts_header2(pid, counter, pes_start,
808 obuf, (TS_SIZE - 4));
809 memcpy(obuf + l, buf + c, TS_SIZE - l);
812 l = write_ts_header2(pid, counter, pes_start,
814 memcpy(obuf + l, buf + c, TS_SIZE - l);
817 feed->cb.ts(obuf, 188, NULL, 0, &feed->feed.ts);
823 static int write_ts_to_decoder(struct av7110 *av7110, int type, const u8 *buf, size_t len)
825 struct ipack *ipack = &av7110->ipack[type];
827 if (buf[1] & TRANS_ERROR) {
828 av7110_ipack_reset(ipack);
832 if (!(buf[3] & PAYLOAD))
835 if (buf[1] & PAY_START)
836 av7110_ipack_flush(ipack);
838 if (buf[3] & ADAPT_FIELD) {
845 av7110_ipack_instant_repack(buf + 4, len - 4, ipack);
850 int av7110_write_to_decoder(struct dvb_demux_feed *feed, const u8 *buf, size_t len)
852 struct dvb_demux *demux = feed->demux;
853 struct av7110 *av7110 = (struct av7110 *) demux->priv;
855 dprintk(2, "av7110:%p, \n", av7110);
857 if (av7110->full_ts && demux->dmx.frontend->source != DMX_MEMORY_FE)
860 switch (feed->pes_type) {
862 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
866 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY)
873 return write_ts_to_decoder(av7110, feed->pes_type, buf, len);
878 /******************************************************************************
879 * Video MPEG decoder events
880 ******************************************************************************/
881 void dvb_video_add_event(struct av7110 *av7110, struct video_event *event)
883 struct dvb_video_events *events = &av7110->video_events;
886 spin_lock_bh(&events->lock);
888 wp = (events->eventw + 1) % MAX_VIDEO_EVENT;
889 if (wp == events->eventr) {
890 events->overflow = 1;
891 events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT;
895 memcpy(&events->events[events->eventw], event, sizeof(struct video_event));
898 spin_unlock_bh(&events->lock);
900 wake_up_interruptible(&events->wait_queue);
904 static int dvb_video_get_event (struct av7110 *av7110, struct video_event *event, int flags)
906 struct dvb_video_events *events = &av7110->video_events;
908 if (events->overflow) {
909 events->overflow = 0;
912 if (events->eventw == events->eventr) {
915 if (flags & O_NONBLOCK)
918 ret = wait_event_interruptible(events->wait_queue,
919 events->eventw != events->eventr);
924 spin_lock_bh(&events->lock);
926 memcpy(event, &events->events[events->eventr],
927 sizeof(struct video_event));
928 events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT;
930 spin_unlock_bh(&events->lock);
936 /******************************************************************************
937 * DVB device file operations
938 ******************************************************************************/
940 static unsigned int dvb_video_poll(struct file *file, poll_table *wait)
942 struct dvb_device *dvbdev = file->private_data;
943 struct av7110 *av7110 = dvbdev->priv;
944 unsigned int mask = 0;
946 dprintk(2, "av7110:%p, \n", av7110);
948 if ((file->f_flags & O_ACCMODE) != O_RDONLY)
949 poll_wait(file, &av7110->avout.queue, wait);
951 poll_wait(file, &av7110->video_events.wait_queue, wait);
953 if (av7110->video_events.eventw != av7110->video_events.eventr)
956 if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
957 if (av7110->playing) {
959 mask |= (POLLOUT | POLLWRNORM);
961 /* if not playing: may play if asked for */
962 mask |= (POLLOUT | POLLWRNORM);
969 static ssize_t dvb_video_write(struct file *file, const char __user *buf,
970 size_t count, loff_t *ppos)
972 struct dvb_device *dvbdev = file->private_data;
973 struct av7110 *av7110 = dvbdev->priv;
976 dprintk(2, "av7110:%p, \n", av7110);
978 if ((file->f_flags & O_ACCMODE) == O_RDONLY)
981 if (av7110->videostate.stream_source != VIDEO_SOURCE_MEMORY)
984 if (get_user(c, buf))
986 if (c == 0x47 && count % TS_SIZE == 0)
987 return ts_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 1);
989 return dvb_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 1);
992 static unsigned int dvb_audio_poll(struct file *file, poll_table *wait)
994 struct dvb_device *dvbdev = file->private_data;
995 struct av7110 *av7110 = dvbdev->priv;
996 unsigned int mask = 0;
998 dprintk(2, "av7110:%p, \n", av7110);
1000 poll_wait(file, &av7110->aout.queue, wait);
1002 if (av7110->playing) {
1003 if (dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)
1004 mask |= (POLLOUT | POLLWRNORM);
1005 } else /* if not playing: may play if asked for */
1006 mask = (POLLOUT | POLLWRNORM);
1011 static ssize_t dvb_audio_write(struct file *file, const char __user *buf,
1012 size_t count, loff_t *ppos)
1014 struct dvb_device *dvbdev = file->private_data;
1015 struct av7110 *av7110 = dvbdev->priv;
1018 dprintk(2, "av7110:%p, \n", av7110);
1020 if (av7110->audiostate.stream_source != AUDIO_SOURCE_MEMORY) {
1021 printk(KERN_ERR "not audio source memory\n");
1025 if (get_user(c, buf))
1027 if (c == 0x47 && count % TS_SIZE == 0)
1028 return ts_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 0);
1030 return dvb_aplay(av7110, buf, count, file->f_flags & O_NONBLOCK, 0);
1033 static u8 iframe_header[] = { 0x00, 0x00, 0x01, 0xe0, 0x00, 0x00, 0x80, 0x00, 0x00 };
1035 #define MIN_IFRAME 400000
1037 static int play_iframe(struct av7110 *av7110, char __user *buf, unsigned int len, int nonblock)
1040 int progressive = 0;
1043 dprintk(2, "av7110:%p, \n", av7110);
1048 if (!(av7110->playing & RP_VIDEO)) {
1049 if (av7110_av_start_play(av7110, RP_VIDEO) < 0)
1053 /* search in buf for instances of 00 00 01 b5 1? */
1054 for (i = 0; i < len; i++) {
1056 if (get_user(c, buf + i))
1059 progressive = c & 0x08;
1063 match = (match == 1 || match == 2) ? 2 : 1;
1067 case 2: if (c == 0x01)
1070 case 3: if (c == 0xb5)
1073 case 4: if ((c & 0xf0) == 0x10)
1080 /* setting n always > 1, fixes problems when playing stillframes
1081 consisting of I- and P-Frames */
1082 n = MIN_IFRAME / len + 1;
1084 /* FIXME: nonblock? */
1085 dvb_play_kernel(av7110, iframe_header, sizeof(iframe_header), 0, 1);
1087 for (i = 0; i < n; i++)
1088 dvb_play(av7110, buf, len, 0, 1);
1090 av7110_ipack_flush(&av7110->ipack[1]);
1093 return vidcom(av7110, AV_VIDEO_CMD_FREEZE, 1);
1099 static int dvb_video_ioctl(struct file *file,
1100 unsigned int cmd, void *parg)
1102 struct dvb_device *dvbdev = file->private_data;
1103 struct av7110 *av7110 = dvbdev->priv;
1104 unsigned long arg = (unsigned long) parg;
1107 dprintk(1, "av7110:%p, cmd=%04x\n", av7110,cmd);
1109 if ((file->f_flags & O_ACCMODE) == O_RDONLY) {
1110 if ( cmd != VIDEO_GET_STATUS && cmd != VIDEO_GET_EVENT &&
1111 cmd != VIDEO_GET_SIZE ) {
1116 if (mutex_lock_interruptible(&av7110->ioctl_mutex))
1117 return -ERESTARTSYS;
1121 av7110->videostate.play_state = VIDEO_STOPPED;
1122 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY)
1123 ret = av7110_av_stop(av7110, RP_VIDEO);
1125 ret = vidcom(av7110, AV_VIDEO_CMD_STOP,
1126 av7110->videostate.video_blank ? 0 : 1);
1128 av7110->trickmode = TRICK_NONE;
1132 av7110->trickmode = TRICK_NONE;
1133 if (av7110->videostate.play_state == VIDEO_FREEZED) {
1134 av7110->videostate.play_state = VIDEO_PLAYING;
1135 ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1139 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY) {
1140 if (av7110->playing == RP_AV) {
1141 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
1144 av7110->playing &= ~RP_VIDEO;
1146 ret = av7110_av_start_play(av7110, RP_VIDEO);
1149 ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1151 av7110->videostate.play_state = VIDEO_PLAYING;
1155 av7110->videostate.play_state = VIDEO_FREEZED;
1156 if (av7110->playing & RP_VIDEO)
1157 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Pause, 0);
1159 ret = vidcom(av7110, AV_VIDEO_CMD_FREEZE, 1);
1161 av7110->trickmode = TRICK_FREEZE;
1164 case VIDEO_CONTINUE:
1165 if (av7110->playing & RP_VIDEO)
1166 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Continue, 0);
1168 ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1170 av7110->videostate.play_state = VIDEO_PLAYING;
1171 av7110->trickmode = TRICK_NONE;
1175 case VIDEO_SELECT_SOURCE:
1176 av7110->videostate.stream_source = (video_stream_source_t) arg;
1179 case VIDEO_SET_BLANK:
1180 av7110->videostate.video_blank = (int) arg;
1183 case VIDEO_GET_STATUS:
1184 memcpy(parg, &av7110->videostate, sizeof(struct video_status));
1187 case VIDEO_GET_EVENT:
1188 ret = dvb_video_get_event(av7110, parg, file->f_flags);
1191 case VIDEO_GET_SIZE:
1192 memcpy(parg, &av7110->video_size, sizeof(video_size_t));
1195 case VIDEO_SET_DISPLAY_FORMAT:
1197 video_displayformat_t format = (video_displayformat_t) arg;
1199 case VIDEO_PAN_SCAN:
1200 av7110->display_panscan = VID_PAN_SCAN_PREF;
1202 case VIDEO_LETTER_BOX:
1203 av7110->display_panscan = VID_VC_AND_PS_PREF;
1205 case VIDEO_CENTER_CUT_OUT:
1206 av7110->display_panscan = VID_CENTRE_CUT_PREF;
1213 av7110->videostate.display_format = format;
1214 ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetPanScanType,
1215 1, av7110->display_panscan);
1219 case VIDEO_SET_FORMAT:
1224 av7110->display_ar = arg;
1225 ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetMonitorType,
1229 case VIDEO_STILLPICTURE:
1231 struct video_still_picture *pic =
1232 (struct video_still_picture *) parg;
1233 av7110->videostate.stream_source = VIDEO_SOURCE_MEMORY;
1234 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1235 ret = play_iframe(av7110, pic->iFrame, pic->size,
1236 file->f_flags & O_NONBLOCK);
1240 case VIDEO_FAST_FORWARD:
1241 //note: arg is ignored by firmware
1242 if (av7110->playing & RP_VIDEO)
1243 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1244 __Scan_I, 2, AV_PES, 0);
1246 ret = vidcom(av7110, AV_VIDEO_CMD_FFWD, arg);
1248 av7110->trickmode = TRICK_FAST;
1249 av7110->videostate.play_state = VIDEO_PLAYING;
1253 case VIDEO_SLOWMOTION:
1254 if (av7110->playing&RP_VIDEO) {
1255 if (av7110->trickmode != TRICK_SLOW)
1256 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Slow, 2, 0, 0);
1258 ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1260 ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1262 ret = vidcom(av7110, AV_VIDEO_CMD_STOP, 0);
1264 ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1267 av7110->trickmode = TRICK_SLOW;
1268 av7110->videostate.play_state = VIDEO_PLAYING;
1272 case VIDEO_GET_CAPABILITIES:
1273 *(int *)parg = VIDEO_CAP_MPEG1 | VIDEO_CAP_MPEG2 |
1274 VIDEO_CAP_SYS | VIDEO_CAP_PROG;
1277 case VIDEO_CLEAR_BUFFER:
1278 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1279 av7110_ipack_reset(&av7110->ipack[1]);
1280 if (av7110->playing == RP_AV) {
1281 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1282 __Play, 2, AV_PES, 0);
1285 if (av7110->trickmode == TRICK_FAST)
1286 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1287 __Scan_I, 2, AV_PES, 0);
1288 if (av7110->trickmode == TRICK_SLOW) {
1289 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1292 ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1294 if (av7110->trickmode == TRICK_FREEZE)
1295 ret = vidcom(av7110, AV_VIDEO_CMD_STOP, 1);
1299 case VIDEO_SET_STREAMTYPE:
1307 mutex_unlock(&av7110->ioctl_mutex);
1311 static int dvb_audio_ioctl(struct file *file,
1312 unsigned int cmd, void *parg)
1314 struct dvb_device *dvbdev = file->private_data;
1315 struct av7110 *av7110 = dvbdev->priv;
1316 unsigned long arg = (unsigned long) parg;
1319 dprintk(1, "av7110:%p, cmd=%04x\n", av7110,cmd);
1321 if (((file->f_flags & O_ACCMODE) == O_RDONLY) &&
1322 (cmd != AUDIO_GET_STATUS))
1325 if (mutex_lock_interruptible(&av7110->ioctl_mutex))
1326 return -ERESTARTSYS;
1330 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
1331 ret = av7110_av_stop(av7110, RP_AUDIO);
1333 ret = audcom(av7110, AUDIO_CMD_MUTE);
1335 av7110->audiostate.play_state = AUDIO_STOPPED;
1339 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
1340 ret = av7110_av_start_play(av7110, RP_AUDIO);
1342 ret = audcom(av7110, AUDIO_CMD_UNMUTE);
1344 av7110->audiostate.play_state = AUDIO_PLAYING;
1348 ret = audcom(av7110, AUDIO_CMD_MUTE);
1350 av7110->audiostate.play_state = AUDIO_PAUSED;
1353 case AUDIO_CONTINUE:
1354 if (av7110->audiostate.play_state == AUDIO_PAUSED) {
1355 av7110->audiostate.play_state = AUDIO_PLAYING;
1356 ret = audcom(av7110, AUDIO_CMD_UNMUTE | AUDIO_CMD_PCM16);
1360 case AUDIO_SELECT_SOURCE:
1361 av7110->audiostate.stream_source = (audio_stream_source_t) arg;
1364 case AUDIO_SET_MUTE:
1366 ret = audcom(av7110, arg ? AUDIO_CMD_MUTE : AUDIO_CMD_UNMUTE);
1368 av7110->audiostate.mute_state = (int) arg;
1372 case AUDIO_SET_AV_SYNC:
1373 av7110->audiostate.AV_sync_state = (int) arg;
1374 ret = audcom(av7110, arg ? AUDIO_CMD_SYNC_ON : AUDIO_CMD_SYNC_OFF);
1377 case AUDIO_SET_BYPASS_MODE:
1378 if (FW_VERSION(av7110->arm_app) < 0x2621)
1380 av7110->audiostate.bypass_mode = (int)arg;
1383 case AUDIO_CHANNEL_SELECT:
1384 av7110->audiostate.channel_select = (audio_channel_select_t) arg;
1385 switch(av7110->audiostate.channel_select) {
1387 ret = audcom(av7110, AUDIO_CMD_STEREO);
1389 if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1390 i2c_writereg(av7110, 0x20, 0x02, 0x49);
1391 else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1392 msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0220);
1395 case AUDIO_MONO_LEFT:
1396 ret = audcom(av7110, AUDIO_CMD_MONO_L);
1398 if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1399 i2c_writereg(av7110, 0x20, 0x02, 0x4a);
1400 else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1401 msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0200);
1404 case AUDIO_MONO_RIGHT:
1405 ret = audcom(av7110, AUDIO_CMD_MONO_R);
1407 if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1408 i2c_writereg(av7110, 0x20, 0x02, 0x45);
1409 else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1410 msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0210);
1419 case AUDIO_GET_STATUS:
1420 memcpy(parg, &av7110->audiostate, sizeof(struct audio_status));
1423 case AUDIO_GET_CAPABILITIES:
1424 if (FW_VERSION(av7110->arm_app) < 0x2621)
1425 *(unsigned int *)parg = AUDIO_CAP_LPCM | AUDIO_CAP_MP1 | AUDIO_CAP_MP2;
1427 *(unsigned int *)parg = AUDIO_CAP_LPCM | AUDIO_CAP_DTS | AUDIO_CAP_AC3 |
1428 AUDIO_CAP_MP1 | AUDIO_CAP_MP2;
1431 case AUDIO_CLEAR_BUFFER:
1432 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1433 av7110_ipack_reset(&av7110->ipack[0]);
1434 if (av7110->playing == RP_AV)
1435 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1436 __Play, 2, AV_PES, 0);
1442 case AUDIO_SET_MIXER:
1444 struct audio_mixer *amix = (struct audio_mixer *)parg;
1445 ret = av7110_set_volume(av7110, amix->volume_left, amix->volume_right);
1449 case AUDIO_SET_STREAMTYPE:
1456 mutex_unlock(&av7110->ioctl_mutex);
1461 static int dvb_video_open(struct inode *inode, struct file *file)
1463 struct dvb_device *dvbdev = file->private_data;
1464 struct av7110 *av7110 = dvbdev->priv;
1467 dprintk(2, "av7110:%p, \n", av7110);
1469 if ((err = dvb_generic_open(inode, file)) < 0)
1472 if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
1473 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1474 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1475 av7110->video_blank = 1;
1476 av7110->audiostate.AV_sync_state = 1;
1477 av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX;
1479 /* empty event queue */
1480 av7110->video_events.eventr = av7110->video_events.eventw = 0;
1486 static int dvb_video_release(struct inode *inode, struct file *file)
1488 struct dvb_device *dvbdev = file->private_data;
1489 struct av7110 *av7110 = dvbdev->priv;
1491 dprintk(2, "av7110:%p, \n", av7110);
1493 if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
1494 av7110_av_stop(av7110, RP_VIDEO);
1497 return dvb_generic_release(inode, file);
1500 static int dvb_audio_open(struct inode *inode, struct file *file)
1502 struct dvb_device *dvbdev = file->private_data;
1503 struct av7110 *av7110 = dvbdev->priv;
1504 int err = dvb_generic_open(inode, file);
1506 dprintk(2, "av7110:%p, \n", av7110);
1510 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1511 av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX;
1515 static int dvb_audio_release(struct inode *inode, struct file *file)
1517 struct dvb_device *dvbdev = file->private_data;
1518 struct av7110 *av7110 = dvbdev->priv;
1520 dprintk(2, "av7110:%p, \n", av7110);
1522 av7110_av_stop(av7110, RP_AUDIO);
1523 return dvb_generic_release(inode, file);
1528 /******************************************************************************
1529 * driver registration
1530 ******************************************************************************/
1532 static const struct file_operations dvb_video_fops = {
1533 .owner = THIS_MODULE,
1534 .write = dvb_video_write,
1535 .unlocked_ioctl = dvb_generic_ioctl,
1536 .open = dvb_video_open,
1537 .release = dvb_video_release,
1538 .poll = dvb_video_poll,
1539 .llseek = noop_llseek,
1542 static struct dvb_device dvbdev_video = {
1545 .readers = 5, /* arbitrary */
1547 .fops = &dvb_video_fops,
1548 .kernel_ioctl = dvb_video_ioctl,
1551 static const struct file_operations dvb_audio_fops = {
1552 .owner = THIS_MODULE,
1553 .write = dvb_audio_write,
1554 .unlocked_ioctl = dvb_generic_ioctl,
1555 .open = dvb_audio_open,
1556 .release = dvb_audio_release,
1557 .poll = dvb_audio_poll,
1558 .llseek = noop_llseek,
1561 static struct dvb_device dvbdev_audio = {
1565 .fops = &dvb_audio_fops,
1566 .kernel_ioctl = dvb_audio_ioctl,
1570 int av7110_av_register(struct av7110 *av7110)
1572 av7110->audiostate.AV_sync_state = 0;
1573 av7110->audiostate.mute_state = 0;
1574 av7110->audiostate.play_state = AUDIO_STOPPED;
1575 av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX;
1576 av7110->audiostate.channel_select = AUDIO_STEREO;
1577 av7110->audiostate.bypass_mode = 0;
1579 av7110->videostate.video_blank = 0;
1580 av7110->videostate.play_state = VIDEO_STOPPED;
1581 av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX;
1582 av7110->videostate.video_format = VIDEO_FORMAT_4_3;
1583 av7110->videostate.display_format = VIDEO_LETTER_BOX;
1584 av7110->display_ar = VIDEO_FORMAT_4_3;
1585 av7110->display_panscan = VID_VC_AND_PS_PREF;
1587 init_waitqueue_head(&av7110->video_events.wait_queue);
1588 spin_lock_init(&av7110->video_events.lock);
1589 av7110->video_events.eventw = av7110->video_events.eventr = 0;
1590 av7110->video_events.overflow = 0;
1591 memset(&av7110->video_size, 0, sizeof (video_size_t));
1593 dvb_register_device(&av7110->dvb_adapter, &av7110->video_dev,
1594 &dvbdev_video, av7110, DVB_DEVICE_VIDEO, 0);
1596 dvb_register_device(&av7110->dvb_adapter, &av7110->audio_dev,
1597 &dvbdev_audio, av7110, DVB_DEVICE_AUDIO, 0);
1602 void av7110_av_unregister(struct av7110 *av7110)
1604 dvb_unregister_device(av7110->audio_dev);
1605 dvb_unregister_device(av7110->video_dev);
1608 int av7110_av_init(struct av7110 *av7110)
1610 void (*play[])(u8 *, int, void *) = { play_audio_cb, play_video_cb };
1613 for (i = 0; i < 2; i++) {
1614 struct ipack *ipack = av7110->ipack + i;
1616 ret = av7110_ipack_init(ipack, IPACKS, play[i]);
1619 av7110_ipack_free(--ipack);
1622 ipack->data = av7110;
1625 dvb_ringbuffer_init(&av7110->avout, av7110->iobuf, AVOUTLEN);
1626 dvb_ringbuffer_init(&av7110->aout, av7110->iobuf + AVOUTLEN, AOUTLEN);
1628 av7110->kbuf[0] = (u8 *)(av7110->iobuf + AVOUTLEN + AOUTLEN + BMPLEN);
1629 av7110->kbuf[1] = av7110->kbuf[0] + 2 * IPACKS;
1634 void av7110_av_exit(struct av7110 *av7110)
1636 av7110_ipack_free(&av7110->ipack[0]);
1637 av7110_ipack_free(&av7110->ipack[1]);