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.
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
28 * the project's page is at http://www.linuxtv.org/dvb/
31 #include <linux/types.h>
32 #include <linux/kernel.h>
33 #include <linux/string.h>
34 #include <linux/sched.h>
35 #include <linux/delay.h>
36 #include <linux/byteorder/swabb.h>
37 #include <linux/smp_lock.h>
40 #define DEBUG_VARIABLE av7110_debug
41 extern int av7110_debug;
44 #include "av7110_hw.h"
45 #include "av7110_av.h"
46 #include "av7110_ipack.h"
47 #include "dvb_functions.h"
49 /* MPEG-2 (ISO 13818 / H.222.0) stream types */
50 #define PROG_STREAM_MAP 0xBC
51 #define PRIVATE_STREAM1 0xBD
52 #define PADDING_STREAM 0xBE
53 #define PRIVATE_STREAM2 0xBF
54 #define AUDIO_STREAM_S 0xC0
55 #define AUDIO_STREAM_E 0xDF
56 #define VIDEO_STREAM_S 0xE0
57 #define VIDEO_STREAM_E 0xEF
58 #define ECM_STREAM 0xF0
59 #define EMM_STREAM 0xF1
60 #define DSM_CC_STREAM 0xF2
61 #define ISO13522_STREAM 0xF3
62 #define PROG_STREAM_DIR 0xFF
64 #define PTS_DTS_FLAGS 0xC0
70 #define TRANS_ERROR 0x80
71 #define PAY_START 0x40
72 #define TRANS_PRIO 0x20
73 #define PID_MASK_HI 0x1F
75 #define TRANS_SCRMBL1 0x80
76 #define TRANS_SCRMBL2 0x40
77 #define ADAPT_FIELD 0x20
79 #define COUNT_MASK 0x0F
82 #define DISCON_IND 0x80
83 #define RAND_ACC_IND 0x40
84 #define ES_PRI_IND 0x20
86 #define OPCR_FLAG 0x08
87 #define SPLICE_FLAG 0x04
88 #define TRANS_PRIV 0x02
89 #define ADAP_EXT_FLAG 0x01
91 // adaptation extension flags
93 #define PIECE_RATE 0x40
94 #define SEAM_SPLICE 0x20
97 static void p_to_t(u8 const *buf, long int length, u16 pid,
98 u8 *counter, struct dvb_demux_feed *feed);
101 int av7110_record_cb(struct dvb_filter_pes2ts *p2t, u8 *buf, size_t len)
103 struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *) p2t->priv;
105 // DEB_EE(("struct dvb_filter_pes2ts:%p\n", p2t));
107 if (!(dvbdmxfeed->ts_type & TS_PACKET))
109 if (buf[3] == 0xe0) // video PES do not have a length in TS
111 if (dvbdmxfeed->ts_type & TS_PAYLOAD_ONLY)
112 return dvbdmxfeed->cb.ts(buf, len, 0, 0,
113 &dvbdmxfeed->feed.ts, DMX_OK);
115 return dvb_filter_pes2ts(p2t, buf, len, 1);
118 static int dvb_filter_pes2ts_cb(void *priv, unsigned char *data)
120 struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *) priv;
122 // DEB_EE(("dvb_demux_feed:%p\n", dvbdmxfeed));
124 dvbdmxfeed->cb.ts(data, 188, 0, 0,
125 &dvbdmxfeed->feed.ts, DMX_OK);
129 int av7110_av_start_record(struct av7110 *av7110, int av,
130 struct dvb_demux_feed *dvbdmxfeed)
132 struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
134 DEB_EE(("av7110: %p, dvb_demux_feed:%p\n", av7110, dvbdmxfeed));
136 if (av7110->playing || (av7110->rec_mode & av))
138 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
139 dvbdmx->recording = 1;
140 av7110->rec_mode |= av;
142 switch (av7110->rec_mode) {
144 dvb_filter_pes2ts_init(&av7110->p2t[0],
145 dvbdmx->pesfilter[0]->pid,
146 dvb_filter_pes2ts_cb,
147 (void *) dvbdmx->pesfilter[0]);
148 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AudioPES, 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 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, VideoPES, 0);
160 dvb_filter_pes2ts_init(&av7110->p2t[0],
161 dvbdmx->pesfilter[0]->pid,
162 dvb_filter_pes2ts_cb,
163 (void *) dvbdmx->pesfilter[0]);
164 dvb_filter_pes2ts_init(&av7110->p2t[1],
165 dvbdmx->pesfilter[1]->pid,
166 dvb_filter_pes2ts_cb,
167 (void *) dvbdmx->pesfilter[1]);
168 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AV_PES, 0);
174 int av7110_av_start_play(struct av7110 *av7110, int av)
176 DEB_EE(("av7110: %p\n", av7110));
178 if (av7110->rec_mode)
180 if (av7110->playing & av)
183 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
185 if (av7110->playing == RP_NONE) {
186 av7110_ipack_reset(&av7110->ipack[0]);
187 av7110_ipack_reset(&av7110->ipack[1]);
190 av7110->playing |= av;
191 switch (av7110->playing) {
193 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AudioPES, 0);
196 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, VideoPES, 0);
201 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AV_PES, 0);
204 return av7110->playing;
207 void av7110_av_stop(struct av7110 *av7110, int av)
209 DEB_EE(("av7110: %p\n", av7110));
211 if (!(av7110->playing & av) && !(av7110->rec_mode & av))
214 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
215 if (av7110->playing) {
216 av7110->playing &= ~av;
217 switch (av7110->playing) {
219 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AudioPES, 0);
222 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, VideoPES, 0);
225 av7110_set_vidmode(av7110, av7110->vidmode);
229 av7110->rec_mode &= ~av;
230 switch (av7110->rec_mode) {
232 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AudioPES, 0);
235 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, VideoPES, 0);
244 int av7110_pes_play(void *dest, struct dvb_ringbuffer *buf, int dlen)
250 DEB_EE(("dvb_ring_buffer_t: %p\n", buf));
253 wake_up(&buf->queue);
257 if ((len = dvb_ringbuffer_avail(buf)) < 6)
259 sync = DVB_RINGBUFFER_PEEK(buf, 0) << 24;
260 sync |= DVB_RINGBUFFER_PEEK(buf, 1) << 16;
261 sync |= DVB_RINGBUFFER_PEEK(buf, 2) << 8;
262 sync |= DVB_RINGBUFFER_PEEK(buf, 3);
264 if (((sync &~ 0x0f) == 0x000001e0) ||
265 ((sync &~ 0x1f) == 0x000001c0) ||
266 (sync == 0x000001bd))
269 DVB_RINGBUFFER_SKIP(buf, 1);
271 blen = DVB_RINGBUFFER_PEEK(buf, 4) << 8;
272 blen |= DVB_RINGBUFFER_PEEK(buf, 5);
274 if (len < blen || blen > dlen) {
275 //printk("buffer empty - avail %d blen %u dlen %d\n", len, blen, dlen);
276 wake_up(&buf->queue);
280 dvb_ringbuffer_read(buf, dest, (size_t) blen, 0);
282 DEB_S(("pread=0x%08lx, pwrite=0x%08lx\n",
283 (unsigned long) buf->pread, (unsigned long) buf->pwrite));
284 wake_up(&buf->queue);
289 int av7110_set_volume(struct av7110 *av7110, int volleft, int volright)
291 int err, vol, val, balance = 0;
293 DEB_EE(("av7110: %p\n", av7110));
295 switch (av7110->adac_type) {
297 volleft = (volleft * 256) / 1036;
298 volright = (volright * 256) / 1036;
303 if ((err = SendDAC(av7110, 3, 0x80 + volleft)))
305 return SendDAC(av7110, 4, volright);
307 case DVB_ADAC_CRYSTAL:
308 volleft = 127 - volleft / 2;
309 volright = 127 - volright / 2;
310 i2c_writereg(av7110, 0x20, 0x03, volleft);
311 i2c_writereg(av7110, 0x20, 0x04, volright);
315 vol = (volleft > volright) ? volleft : volright;
316 val = (vol * 0x73 / 255) << 8;
318 balance = ((volright - volleft) * 127) / vol;
319 msp_writereg(av7110, MSP_WR_DSP, 0x0001, balance << 8);
320 msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */
321 msp_writereg(av7110, MSP_WR_DSP, 0x0006, val); /* headphonesr */
327 void av7110_set_vidmode(struct av7110 *av7110, int mode)
329 DEB_EE(("av7110: %p\n", av7110));
331 av7110_fw_cmd(av7110, COMTYPE_ENCODER, LoadVidCode, 1, mode);
333 if (!av7110->playing) {
334 ChangePIDs(av7110, av7110->pids[DMX_PES_VIDEO],
335 av7110->pids[DMX_PES_AUDIO],
336 av7110->pids[DMX_PES_TELETEXT],
337 0, av7110->pids[DMX_PES_PCR]);
338 av7110_fw_cmd(av7110, COMTYPE_PIDFILTER, Scan, 0);
343 static int sw2mode[16] = {
344 VIDEO_MODE_PAL, VIDEO_MODE_NTSC, VIDEO_MODE_NTSC, VIDEO_MODE_PAL,
345 VIDEO_MODE_NTSC, VIDEO_MODE_NTSC, VIDEO_MODE_PAL, VIDEO_MODE_NTSC,
346 VIDEO_MODE_PAL, VIDEO_MODE_PAL, VIDEO_MODE_PAL, VIDEO_MODE_PAL,
347 VIDEO_MODE_PAL, VIDEO_MODE_PAL, VIDEO_MODE_PAL, VIDEO_MODE_PAL,
350 static void get_video_format(struct av7110 *av7110, u8 *buf, int count)
357 DEB_EE(("av7110: %p\n", av7110));
361 for (i = 7; i < count - 10; i++) {
363 if (p[0] || p[1] || p[2] != 0x01 || p[3] != 0xb3)
366 hsize = ((p[1] &0xF0) >> 4) | (p[0] << 4);
367 vsize = ((p[1] &0x0F) << 8) | (p[2]);
369 av7110_set_vidmode(av7110, sw2mode[sw]);
370 DEB_S(("dvb: playback %dx%d fr=%d\n", hsize, vsize, sw));
377 /****************************************************************************
378 * I/O buffer management and control
379 ****************************************************************************/
381 static inline long aux_ring_buffer_write(struct dvb_ringbuffer *rbuf,
382 const char *buf, unsigned long count)
384 unsigned long todo = count;
388 if (dvb_ringbuffer_free(rbuf) < 2048) {
389 if (wait_event_interruptible(rbuf->queue,
390 (dvb_ringbuffer_free(rbuf) >= 2048)))
393 free = dvb_ringbuffer_free(rbuf);
396 dvb_ringbuffer_write(rbuf, buf, free, 0);
404 static void play_video_cb(u8 *buf, int count, void *priv)
406 struct av7110 *av7110 = (struct av7110 *) priv;
407 DEB_EE(("av7110: %p\n", av7110));
409 if ((buf[3] & 0xe0) == 0xe0) {
410 get_video_format(av7110, buf, count);
411 aux_ring_buffer_write(&av7110->avout, buf, count);
413 aux_ring_buffer_write(&av7110->aout, buf, count);
416 static void play_audio_cb(u8 *buf, int count, void *priv)
418 struct av7110 *av7110 = (struct av7110 *) priv;
419 DEB_EE(("av7110: %p\n", av7110));
421 aux_ring_buffer_write(&av7110->aout, buf, count);
424 #define FREE_COND (dvb_ringbuffer_free(&av7110->avout) >= 20 * 1024 && \
425 dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)
427 static ssize_t dvb_play(struct av7110 *av7110, const u8 *buf,
428 unsigned long count, int nonblock, int type, int umem)
430 unsigned long todo = count, n;
431 DEB_EE(("av7110: %p\n", av7110));
433 if (!av7110->kbuf[type])
436 if (nonblock && !FREE_COND)
443 if (wait_event_interruptible(av7110->avout.queue,
451 if (copy_from_user(av7110->kbuf[type], buf, n))
453 av7110_ipack_instant_repack(av7110->kbuf[type], n,
454 &av7110->ipack[type]);
456 av7110_ipack_instant_repack(buf, n,
457 &av7110->ipack[type]);
465 static ssize_t dvb_aplay(struct av7110 *av7110, const u8 *buf,
466 unsigned long count, int nonblock, int type)
468 unsigned long todo = count, n;
469 DEB_EE(("av7110: %p\n", av7110));
471 if (!av7110->kbuf[type])
473 if (nonblock && dvb_ringbuffer_free(&av7110->aout) < 20 * 1024)
477 if (dvb_ringbuffer_free(&av7110->aout) < 20 * 1024) {
480 if (wait_event_interruptible(av7110->aout.queue,
481 (dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)))
487 if (copy_from_user(av7110->kbuf[type], buf, n))
489 av7110_ipack_instant_repack(av7110->kbuf[type], n,
490 &av7110->ipack[type]);
497 void av7110_p2t_init(struct av7110_p2t *p, struct dvb_demux_feed *feed)
499 memset(p->pes, 0, TS_SIZE);
507 static void clear_p2t(struct av7110_p2t *p)
509 memset(p->pes, 0, TS_SIZE);
516 static int find_pes_header(u8 const *buf, long int length, int *frags)
523 while (c < length - 3 && !found) {
524 if (buf[c] == 0x00 && buf[c + 1] == 0x00 &&
525 buf[c + 2] == 0x01) {
526 switch ( buf[c + 3] ) {
527 case PROG_STREAM_MAP:
528 case PRIVATE_STREAM2:
529 case PROG_STREAM_DIR:
532 case PADDING_STREAM :
534 case ISO13522_STREAM:
535 case PRIVATE_STREAM1:
536 case AUDIO_STREAM_S ... AUDIO_STREAM_E:
537 case VIDEO_STREAM_S ... VIDEO_STREAM_E:
548 if (c == length - 3 && !found) {
549 if (buf[length - 1] == 0x00)
551 if (buf[length - 2] == 0x00 &&
552 buf[length - 1] == 0x00)
554 if (buf[length - 3] == 0x00 &&
555 buf[length - 2] == 0x00 &&
556 buf[length - 1] == 0x01)
564 void av7110_p2t_write(u8 const *buf, long int length, u16 pid, struct av7110_p2t *p)
575 if (buf[c] == 0x00 && buf[c + 1] == 0x01) {
581 if (buf[c] == 0x01) {
591 case PROG_STREAM_MAP:
592 case PRIVATE_STREAM2:
593 case PROG_STREAM_DIR:
596 case PADDING_STREAM :
598 case ISO13522_STREAM:
599 case PRIVATE_STREAM1:
600 case AUDIO_STREAM_S ... AUDIO_STREAM_E:
601 case VIDEO_STREAM_S ... VIDEO_STREAM_E:
607 memcpy(p->pes + p->pos, buf + c, (TS_SIZE - 4) - p->pos);
608 c += (TS_SIZE - 4) - p->pos;
609 p_to_t(p->pes, (TS_SIZE - 4), pid, &p->counter, p->feed);
622 c2 = find_pes_header(buf + c, length - c, &p->frags);
623 if (c2 >= 0 && c2 < (TS_SIZE - 4) - p->pos)
626 l = (TS_SIZE - 4) - p->pos;
627 memcpy(p->pes + p->pos, buf, l);
630 p_to_t(p->pes, p->pos, pid, &p->counter, p->feed);
636 c2 = find_pes_header(buf + c + add, length - c - add, &p->frags);
640 p_to_t(buf + c, c2 - c, pid, &p->counter, p->feed);
648 rest = l % (TS_SIZE - 4);
650 p_to_t(buf + c, l, pid, &p->counter, p->feed);
651 memcpy(p->pes, buf + c + l, rest);
659 int write_ts_header2(u16 pid, u8 *counter, int pes_start, u8 *buf, u8 length)
664 u8 tshead[4] = { 0x47, 0x00, 0x00, 0x10 };
666 fill = (TS_SIZE - 4) - length;
671 tshead[1] |= (u8)((pid & 0x1F00) >> 8);
672 tshead[2] |= (u8)(pid & 0x00FF);
673 tshead[3] |= ((*counter)++ & 0x0F);
674 memcpy(buf, tshead, 4);
684 for (i = 6; i < fill + 4; i++) {
694 static void p_to_t(u8 const *buf, long int length, u16 pid, u8 *counter,
695 struct dvb_demux_feed *feed)
703 buf[0] == 0x00 && buf[1] == 0x00 && buf[2] == 0x01)
705 case PROG_STREAM_MAP:
706 case PRIVATE_STREAM2:
707 case PROG_STREAM_DIR:
710 case PADDING_STREAM :
712 case ISO13522_STREAM:
713 case PRIVATE_STREAM1:
714 case AUDIO_STREAM_S ... AUDIO_STREAM_E:
715 case VIDEO_STREAM_S ... VIDEO_STREAM_E:
724 memset(obuf, 0, TS_SIZE);
725 if (length - c >= (TS_SIZE - 4)){
726 l = write_ts_header2(pid, counter, pes_start,
727 obuf, (TS_SIZE - 4));
728 memcpy(obuf + l, buf + c, TS_SIZE - l);
731 l = write_ts_header2(pid, counter, pes_start,
733 memcpy(obuf + l, buf + c, TS_SIZE - l);
736 feed->cb.ts(obuf, 188, 0, 0, &feed->feed.ts, DMX_OK);
742 int av7110_write_to_decoder(struct dvb_demux_feed *feed, const u8 *buf, size_t len)
744 struct dvb_demux *demux = feed->demux;
745 struct av7110 *av7110 = (struct av7110 *) demux->priv;
746 struct ipack *ipack = &av7110->ipack[feed->pes_type];
748 DEB_EE(("av7110: %p\n", av7110));
750 switch (feed->pes_type) {
752 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
756 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY)
763 if (!(buf[3] & 0x10)) /* no payload? */
766 av7110_ipack_flush(ipack);
768 if (buf[3] & 0x20) { /* adaptation field? */
775 av7110_ipack_instant_repack(buf + 4, len - 4, &av7110->ipack[feed->pes_type]);
781 /******************************************************************************
782 * Video MPEG decoder events
783 ******************************************************************************/
784 void dvb_video_add_event(struct av7110 *av7110, struct video_event *event)
786 struct dvb_video_events *events = &av7110->video_events;
791 spin_lock_bh(&events->lock);
793 wp = (events->eventw + 1) % MAX_VIDEO_EVENT;
794 if (wp == events->eventr) {
795 events->overflow = 1;
796 events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT;
800 memcpy(&events->events[events->eventw], event, sizeof(struct video_event));
803 spin_unlock_bh(&events->lock);
805 wake_up_interruptible(&events->wait_queue);
809 static int dvb_video_get_event (struct av7110 *av7110, struct video_event *event, int flags)
811 struct dvb_video_events *events = &av7110->video_events;
815 if (events->overflow) {
816 events->overflow = 0;
819 if (events->eventw == events->eventr) {
822 if (flags & O_NONBLOCK)
825 ret = wait_event_interruptible(events->wait_queue,
826 events->eventw != events->eventr);
831 spin_lock_bh(&events->lock);
833 memcpy(event, &events->events[events->eventr],
834 sizeof(struct video_event));
835 events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT;
837 spin_unlock_bh(&events->lock);
843 /******************************************************************************
844 * DVB device file operations
845 ******************************************************************************/
847 static unsigned int dvb_video_poll(struct file *file, poll_table *wait)
849 struct dvb_device *dvbdev = (struct dvb_device *) file->private_data;
850 struct av7110 *av7110 = (struct av7110 *) dvbdev->priv;
851 unsigned int mask = 0;
853 DEB_EE(("av7110: %p\n", av7110));
855 if ((file->f_flags & O_ACCMODE) != O_RDONLY)
856 poll_wait(file, &av7110->avout.queue, wait);
858 poll_wait(file, &av7110->video_events.wait_queue, wait);
860 if (av7110->video_events.eventw != av7110->video_events.eventr)
863 if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
864 if (av7110->playing) {
866 mask |= (POLLOUT | POLLWRNORM);
867 } else /* if not playing: may play if asked for */
868 mask |= (POLLOUT | POLLWRNORM);
874 static ssize_t dvb_video_write(struct file *file, const char *buf,
875 size_t count, loff_t *ppos)
877 struct dvb_device *dvbdev = (struct dvb_device *) file->private_data;
878 struct av7110 *av7110 = (struct av7110 *) dvbdev->priv;
880 DEB_EE(("av7110: %p\n", av7110));
882 if ((file->f_flags & O_ACCMODE) == O_RDONLY)
885 if (av7110->videostate.stream_source != VIDEO_SOURCE_MEMORY)
888 return dvb_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 1, 1);
891 static unsigned int dvb_audio_poll(struct file *file, poll_table *wait)
893 struct dvb_device *dvbdev = (struct dvb_device *) file->private_data;
894 struct av7110 *av7110 = (struct av7110 *) dvbdev->priv;
895 unsigned int mask = 0;
897 DEB_EE(("av7110: %p\n", av7110));
899 poll_wait(file, &av7110->aout.queue, wait);
901 if (av7110->playing) {
902 if (dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)
903 mask |= (POLLOUT | POLLWRNORM);
904 } else /* if not playing: may play if asked for */
905 mask = (POLLOUT | POLLWRNORM);
910 static ssize_t dvb_audio_write(struct file *file, const char *buf,
911 size_t count, loff_t *ppos)
913 struct dvb_device *dvbdev = (struct dvb_device *) file->private_data;
914 struct av7110 *av7110 = (struct av7110 *) dvbdev->priv;
916 DEB_EE(("av7110: %p\n", av7110));
918 if (av7110->audiostate.stream_source != AUDIO_SOURCE_MEMORY) {
919 printk(KERN_ERR "not audio source memory\n");
922 return dvb_aplay(av7110, buf, count, file->f_flags & O_NONBLOCK, 0);
925 u8 iframe_header[] = { 0x00, 0x00, 0x01, 0xe0, 0x00, 0x00, 0x80, 0x00, 0x00 };
927 #define MIN_IFRAME 400000
929 static int play_iframe(struct av7110 *av7110, u8 *buf, unsigned int len, int nonblock)
933 DEB_EE(("av7110: %p\n", av7110));
935 if (!(av7110->playing & RP_VIDEO)) {
936 if (av7110_av_start_play(av7110, RP_VIDEO) < 0)
940 /* setting n always > 1, fixes problems when playing stillframes
941 consisting of I- and P-Frames */
942 n = MIN_IFRAME / len + 1;
944 /* FIXME: nonblock? */
945 dvb_play(av7110, iframe_header, sizeof(iframe_header), 0, 1, 0);
947 for (i = 0; i < n; i++)
948 dvb_play(av7110, buf, len, 0, 1, 1);
950 av7110_ipack_flush(&av7110->ipack[1]);
955 static int dvb_video_ioctl(struct inode *inode, struct file *file,
956 unsigned int cmd, void *parg)
958 struct dvb_device *dvbdev = (struct dvb_device *) file->private_data;
959 struct av7110 *av7110 = (struct av7110 *) dvbdev->priv;
960 unsigned long arg = (unsigned long) parg;
963 DEB_EE(("av7110: %p\n", av7110));
965 if ((file->f_flags & O_ACCMODE) == O_RDONLY) {
966 if ( cmd != VIDEO_GET_STATUS && cmd != VIDEO_GET_EVENT &&
967 cmd != VIDEO_GET_SIZE ) {
974 av7110->videostate.play_state = VIDEO_STOPPED;
975 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY)
976 av7110_av_stop(av7110, RP_VIDEO);
978 vidcom(av7110, VIDEO_CMD_STOP,
979 av7110->videostate.video_blank ? 0 : 1);
980 av7110->trickmode = TRICK_NONE;
984 av7110->trickmode = TRICK_NONE;
985 if (av7110->videostate.play_state == VIDEO_FREEZED) {
986 av7110->videostate.play_state = VIDEO_PLAYING;
987 vidcom(av7110, VIDEO_CMD_PLAY, 0);
990 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY) {
991 if (av7110->playing == RP_AV) {
992 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
993 av7110->playing &= ~RP_VIDEO;
995 av7110_av_start_play(av7110, RP_VIDEO);
996 vidcom(av7110, VIDEO_CMD_PLAY, 0);
998 //av7110_av_stop(av7110, RP_VIDEO);
999 vidcom(av7110, VIDEO_CMD_PLAY, 0);
1001 av7110->videostate.play_state = VIDEO_PLAYING;
1005 av7110->videostate.play_state = VIDEO_FREEZED;
1006 if (av7110->playing & RP_VIDEO)
1007 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Pause, 0);
1009 vidcom(av7110, VIDEO_CMD_FREEZE, 1);
1010 av7110->trickmode = TRICK_FREEZE;
1013 case VIDEO_CONTINUE:
1014 if (av7110->playing & RP_VIDEO)
1015 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Continue, 0);
1016 vidcom(av7110, VIDEO_CMD_PLAY, 0);
1017 av7110->videostate.play_state = VIDEO_PLAYING;
1018 av7110->trickmode = TRICK_NONE;
1021 case VIDEO_SELECT_SOURCE:
1022 av7110->videostate.stream_source = (video_stream_source_t) arg;
1025 case VIDEO_SET_BLANK:
1026 av7110->videostate.video_blank = (int) arg;
1029 case VIDEO_GET_STATUS:
1030 memcpy(parg, &av7110->videostate, sizeof(struct video_status));
1033 case VIDEO_GET_EVENT:
1034 ret=dvb_video_get_event(av7110, parg, file->f_flags);
1037 case VIDEO_GET_SIZE:
1038 memcpy(parg, &av7110->video_size, sizeof(video_size_t));
1041 case VIDEO_SET_DISPLAY_FORMAT:
1043 video_displayformat_t format = (video_displayformat_t) arg;
1047 case VIDEO_PAN_SCAN:
1048 val = VID_PAN_SCAN_PREF;
1051 case VIDEO_LETTER_BOX:
1052 val = VID_VC_AND_PS_PREF;
1055 case VIDEO_CENTER_CUT_OUT:
1056 val = VID_CENTRE_CUT_PREF;
1064 av7110->videostate.video_format = format;
1065 ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetPanScanType,
1070 case VIDEO_SET_FORMAT:
1075 av7110->display_ar = arg;
1076 ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetMonitorType,
1080 case VIDEO_STILLPICTURE:
1082 struct video_still_picture *pic =
1083 (struct video_still_picture *) parg;
1084 av7110->videostate.stream_source = VIDEO_SOURCE_MEMORY;
1085 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1086 ret = play_iframe(av7110, pic->iFrame, pic->size,
1087 file->f_flags & O_NONBLOCK);
1091 case VIDEO_FAST_FORWARD:
1092 //note: arg is ignored by firmware
1093 if (av7110->playing & RP_VIDEO)
1094 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1095 __Scan_I, 2, AV_PES, 0);
1097 vidcom(av7110, VIDEO_CMD_FFWD, arg);
1098 av7110->trickmode = TRICK_FAST;
1099 av7110->videostate.play_state = VIDEO_PLAYING;
1102 case VIDEO_SLOWMOTION:
1103 if (av7110->playing&RP_VIDEO) {
1104 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Slow, 2, 0, 0);
1105 vidcom(av7110, VIDEO_CMD_SLOW, arg);
1107 vidcom(av7110, VIDEO_CMD_PLAY, 0);
1108 vidcom(av7110, VIDEO_CMD_STOP, 0);
1109 vidcom(av7110, VIDEO_CMD_SLOW, arg);
1111 av7110->trickmode = TRICK_SLOW;
1112 av7110->videostate.play_state = VIDEO_PLAYING;
1115 case VIDEO_GET_CAPABILITIES:
1116 *(int *)parg = VIDEO_CAP_MPEG1 | VIDEO_CAP_MPEG2 |
1117 VIDEO_CAP_SYS | VIDEO_CAP_PROG;
1120 case VIDEO_CLEAR_BUFFER:
1121 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1122 av7110_ipack_reset(&av7110->ipack[1]);
1124 if (av7110->playing == RP_AV) {
1125 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1126 __Play, 2, AV_PES, 0);
1127 if (av7110->trickmode == TRICK_FAST)
1128 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1129 __Scan_I, 2, AV_PES, 0);
1130 if (av7110->trickmode == TRICK_SLOW) {
1131 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1133 vidcom(av7110, VIDEO_CMD_SLOW, arg);
1135 if (av7110->trickmode == TRICK_FREEZE)
1136 vidcom(av7110, VIDEO_CMD_STOP, 1);
1140 case VIDEO_SET_STREAMTYPE:
1151 static int dvb_audio_ioctl(struct inode *inode, struct file *file,
1152 unsigned int cmd, void *parg)
1154 struct dvb_device *dvbdev = (struct dvb_device *) file->private_data;
1155 struct av7110 *av7110 = (struct av7110 *) dvbdev->priv;
1156 unsigned long arg = (unsigned long) parg;
1159 DEB_EE(("av7110: %p\n", av7110));
1161 if (((file->f_flags & O_ACCMODE) == O_RDONLY) &&
1162 (cmd != AUDIO_GET_STATUS))
1167 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
1168 av7110_av_stop(av7110, RP_AUDIO);
1170 audcom(av7110, AUDIO_CMD_MUTE);
1171 av7110->audiostate.play_state = AUDIO_STOPPED;
1175 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
1176 av7110_av_start_play(av7110, RP_AUDIO);
1177 audcom(av7110, AUDIO_CMD_UNMUTE);
1178 av7110->audiostate.play_state = AUDIO_PLAYING;
1182 audcom(av7110, AUDIO_CMD_MUTE);
1183 av7110->audiostate.play_state = AUDIO_PAUSED;
1186 case AUDIO_CONTINUE:
1187 if (av7110->audiostate.play_state == AUDIO_PAUSED) {
1188 av7110->audiostate.play_state = AUDIO_PLAYING;
1189 audcom(av7110, AUDIO_CMD_MUTE | AUDIO_CMD_PCM16);
1193 case AUDIO_SELECT_SOURCE:
1194 av7110->audiostate.stream_source = (audio_stream_source_t) arg;
1197 case AUDIO_SET_MUTE:
1199 audcom(av7110, arg ? AUDIO_CMD_MUTE : AUDIO_CMD_UNMUTE);
1200 av7110->audiostate.mute_state = (int) arg;
1204 case AUDIO_SET_AV_SYNC:
1205 av7110->audiostate.AV_sync_state = (int) arg;
1206 audcom(av7110, arg ? AUDIO_CMD_SYNC_ON : AUDIO_CMD_SYNC_OFF);
1209 case AUDIO_SET_BYPASS_MODE:
1213 case AUDIO_CHANNEL_SELECT:
1214 av7110->audiostate.channel_select = (audio_channel_select_t) arg;
1216 switch(av7110->audiostate.channel_select) {
1218 audcom(av7110, AUDIO_CMD_STEREO);
1221 case AUDIO_MONO_LEFT:
1222 audcom(av7110, AUDIO_CMD_MONO_L);
1225 case AUDIO_MONO_RIGHT:
1226 audcom(av7110, AUDIO_CMD_MONO_R);
1235 case AUDIO_GET_STATUS:
1236 memcpy(parg, &av7110->audiostate, sizeof(struct audio_status));
1239 case AUDIO_GET_CAPABILITIES:
1240 *(int *)parg = AUDIO_CAP_LPCM | AUDIO_CAP_MP1 | AUDIO_CAP_MP2;
1243 case AUDIO_CLEAR_BUFFER:
1244 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1245 av7110_ipack_reset(&av7110->ipack[0]);
1246 if (av7110->playing == RP_AV)
1247 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1248 __Play, 2, AV_PES, 0);
1253 case AUDIO_SET_MIXER:
1255 struct audio_mixer *amix = (struct audio_mixer *)parg;
1257 av7110_set_volume(av7110, amix->volume_left, amix->volume_right);
1260 case AUDIO_SET_STREAMTYPE:
1269 static int dvb_video_open(struct inode *inode, struct file *file)
1271 struct dvb_device *dvbdev = (struct dvb_device *) file->private_data;
1272 struct av7110 *av7110 = (struct av7110 *) dvbdev->priv;
1275 DEB_EE(("av7110: %p\n", av7110));
1277 if ((err = dvb_generic_open(inode, file)) < 0)
1280 if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
1281 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1282 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1283 av7110->video_blank = 1;
1284 av7110->audiostate.AV_sync_state = 1;
1285 av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX;
1287 /* empty event queue */
1288 av7110->video_events.eventr = av7110->video_events.eventw = 0;
1294 static int dvb_video_release(struct inode *inode, struct file *file)
1296 struct dvb_device *dvbdev = (struct dvb_device *) file->private_data;
1297 struct av7110 *av7110 = (struct av7110 *) dvbdev->priv;
1299 DEB_EE(("av7110: %p\n", av7110));
1301 if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
1302 av7110_av_stop(av7110, RP_VIDEO);
1305 return dvb_generic_release(inode, file);
1308 static int dvb_audio_open(struct inode *inode, struct file *file)
1310 struct dvb_device *dvbdev = (struct dvb_device *) file->private_data;
1311 struct av7110 *av7110 = (struct av7110 *) dvbdev->priv;
1312 int err=dvb_generic_open(inode, file);
1314 DEB_EE(("av7110: %p\n", av7110));
1318 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1319 av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX;
1323 static int dvb_audio_release(struct inode *inode, struct file *file)
1325 struct dvb_device *dvbdev = (struct dvb_device *) file->private_data;
1326 struct av7110 *av7110 = (struct av7110 *) dvbdev->priv;
1328 DEB_EE(("av7110: %p\n", av7110));
1330 av7110_av_stop(av7110, RP_AUDIO);
1331 return dvb_generic_release(inode, file);
1336 /******************************************************************************
1337 * driver registration
1338 ******************************************************************************/
1340 static struct file_operations dvb_video_fops = {
1341 .owner = THIS_MODULE,
1342 .write = dvb_video_write,
1343 .ioctl = dvb_generic_ioctl,
1344 .open = dvb_video_open,
1345 .release = dvb_video_release,
1346 .poll = dvb_video_poll,
1349 static struct dvb_device dvbdev_video = {
1352 .readers = 5, /* arbitrary */
1354 .fops = &dvb_video_fops,
1355 .kernel_ioctl = dvb_video_ioctl,
1358 static struct file_operations dvb_audio_fops = {
1359 .owner = THIS_MODULE,
1360 .write = dvb_audio_write,
1361 .ioctl = dvb_generic_ioctl,
1362 .open = dvb_audio_open,
1363 .release = dvb_audio_release,
1364 .poll = dvb_audio_poll,
1367 static struct dvb_device dvbdev_audio = {
1371 .fops = &dvb_audio_fops,
1372 .kernel_ioctl = dvb_audio_ioctl,
1376 int av7110_av_register(struct av7110 *av7110)
1378 av7110->audiostate.AV_sync_state = 0;
1379 av7110->audiostate.mute_state = 0;
1380 av7110->audiostate.play_state = AUDIO_STOPPED;
1381 av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX;
1382 av7110->audiostate.channel_select = AUDIO_STEREO;
1383 av7110->audiostate.bypass_mode = 0;
1385 av7110->videostate.video_blank = 0;
1386 av7110->videostate.play_state = VIDEO_STOPPED;
1387 av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX;
1388 av7110->videostate.video_format = VIDEO_FORMAT_4_3;
1389 av7110->videostate.display_format = VIDEO_CENTER_CUT_OUT;
1390 av7110->display_ar = VIDEO_FORMAT_4_3;
1392 init_waitqueue_head(&av7110->video_events.wait_queue);
1393 spin_lock_init(&av7110->video_events.lock);
1394 av7110->video_events.eventw = av7110->video_events.eventr = 0;
1395 av7110->video_events.overflow = 0;
1396 memset(&av7110->video_size, 0, sizeof (video_size_t));
1398 dvb_register_device(av7110->dvb_adapter, &av7110->video_dev,
1399 &dvbdev_video, av7110, DVB_DEVICE_VIDEO);
1401 dvb_register_device(av7110->dvb_adapter, &av7110->audio_dev,
1402 &dvbdev_audio, av7110, DVB_DEVICE_AUDIO);
1407 void av7110_av_unregister(struct av7110 *av7110)
1409 dvb_unregister_device(av7110->audio_dev);
1410 dvb_unregister_device(av7110->video_dev);
1413 int av7110_av_init(struct av7110 *av7110)
1415 av7110->vidmode = VIDEO_MODE_PAL;
1417 av7110_ipack_init(&av7110->ipack[0], IPACKS, play_audio_cb);
1418 av7110->ipack[0].data = (void *) av7110;
1419 av7110_ipack_init(&av7110->ipack[1], IPACKS, play_video_cb);
1420 av7110->ipack[1].data = (void *) av7110;
1422 dvb_ringbuffer_init(&av7110->avout, av7110->iobuf, AVOUTLEN);
1423 dvb_ringbuffer_init(&av7110->aout, av7110->iobuf + AVOUTLEN, AOUTLEN);
1425 av7110->kbuf[0] = (u8 *)(av7110->iobuf + AVOUTLEN + AOUTLEN + BMPLEN);
1426 av7110->kbuf[1] = av7110->kbuf[0] + 2 * IPACKS;
1431 int av7110_av_exit(struct av7110 *av7110)
1433 av7110_ipack_free(&av7110->ipack[0]);
1434 av7110_ipack_free(&av7110->ipack[1]);