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>
41 #include "av7110_hw.h"
42 #include "av7110_av.h"
43 #include "av7110_ipack.h"
45 /* MPEG-2 (ISO 13818 / H.222.0) stream types */
46 #define PROG_STREAM_MAP 0xBC
47 #define PRIVATE_STREAM1 0xBD
48 #define PADDING_STREAM 0xBE
49 #define PRIVATE_STREAM2 0xBF
50 #define AUDIO_STREAM_S 0xC0
51 #define AUDIO_STREAM_E 0xDF
52 #define VIDEO_STREAM_S 0xE0
53 #define VIDEO_STREAM_E 0xEF
54 #define ECM_STREAM 0xF0
55 #define EMM_STREAM 0xF1
56 #define DSM_CC_STREAM 0xF2
57 #define ISO13522_STREAM 0xF3
58 #define PROG_STREAM_DIR 0xFF
60 #define PTS_DTS_FLAGS 0xC0
66 #define TRANS_ERROR 0x80
67 #define PAY_START 0x40
68 #define TRANS_PRIO 0x20
69 #define PID_MASK_HI 0x1F
71 #define TRANS_SCRMBL1 0x80
72 #define TRANS_SCRMBL2 0x40
73 #define ADAPT_FIELD 0x20
75 #define COUNT_MASK 0x0F
78 #define DISCON_IND 0x80
79 #define RAND_ACC_IND 0x40
80 #define ES_PRI_IND 0x20
82 #define OPCR_FLAG 0x08
83 #define SPLICE_FLAG 0x04
84 #define TRANS_PRIV 0x02
85 #define ADAP_EXT_FLAG 0x01
87 // adaptation extension flags
89 #define PIECE_RATE 0x40
90 #define SEAM_SPLICE 0x20
93 static void p_to_t(u8 const *buf, long int length, u16 pid,
94 u8 *counter, struct dvb_demux_feed *feed);
97 int av7110_record_cb(struct dvb_filter_pes2ts *p2t, u8 *buf, size_t len)
99 struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *) p2t->priv;
101 if (!(dvbdmxfeed->ts_type & TS_PACKET))
103 if (buf[3] == 0xe0) // video PES do not have a length in TS
105 if (dvbdmxfeed->ts_type & TS_PAYLOAD_ONLY)
106 return dvbdmxfeed->cb.ts(buf, len, NULL, 0,
107 &dvbdmxfeed->feed.ts, DMX_OK);
109 return dvb_filter_pes2ts(p2t, buf, len, 1);
112 static int dvb_filter_pes2ts_cb(void *priv, unsigned char *data)
114 struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *) priv;
116 dvbdmxfeed->cb.ts(data, 188, NULL, 0,
117 &dvbdmxfeed->feed.ts, DMX_OK);
121 int av7110_av_start_record(struct av7110 *av7110, int av,
122 struct dvb_demux_feed *dvbdmxfeed)
125 struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
127 dprintk(2, "av7110:%p, , dvb_demux_feed:%p\n", av7110, dvbdmxfeed);
129 if (av7110->playing || (av7110->rec_mode & av))
131 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
132 dvbdmx->recording = 1;
133 av7110->rec_mode |= av;
135 switch (av7110->rec_mode) {
137 dvb_filter_pes2ts_init(&av7110->p2t[0],
138 dvbdmx->pesfilter[0]->pid,
139 dvb_filter_pes2ts_cb,
140 (void *) dvbdmx->pesfilter[0]);
141 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AudioPES, 0);
145 dvb_filter_pes2ts_init(&av7110->p2t[1],
146 dvbdmx->pesfilter[1]->pid,
147 dvb_filter_pes2ts_cb,
148 (void *) dvbdmx->pesfilter[1]);
149 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, VideoPES, 0);
153 dvb_filter_pes2ts_init(&av7110->p2t[0],
154 dvbdmx->pesfilter[0]->pid,
155 dvb_filter_pes2ts_cb,
156 (void *) dvbdmx->pesfilter[0]);
157 dvb_filter_pes2ts_init(&av7110->p2t[1],
158 dvbdmx->pesfilter[1]->pid,
159 dvb_filter_pes2ts_cb,
160 (void *) dvbdmx->pesfilter[1]);
161 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AV_PES, 0);
167 int av7110_av_start_play(struct av7110 *av7110, int av)
170 dprintk(2, "av7110:%p, \n", av7110);
172 if (av7110->rec_mode)
174 if (av7110->playing & av)
177 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
179 if (av7110->playing == RP_NONE) {
180 av7110_ipack_reset(&av7110->ipack[0]);
181 av7110_ipack_reset(&av7110->ipack[1]);
184 av7110->playing |= av;
185 switch (av7110->playing) {
187 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AudioPES, 0);
190 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, VideoPES, 0);
195 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AV_PES, 0);
199 ret = av7110->playing;
203 int av7110_av_stop(struct av7110 *av7110, int av)
206 dprintk(2, "av7110:%p, \n", av7110);
208 if (!(av7110->playing & av) && !(av7110->rec_mode & av))
210 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
211 if (av7110->playing) {
212 av7110->playing &= ~av;
213 switch (av7110->playing) {
215 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AudioPES, 0);
218 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, VideoPES, 0);
221 ret = av7110_set_vidmode(av7110, av7110->vidmode);
225 av7110->rec_mode &= ~av;
226 switch (av7110->rec_mode) {
228 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AudioPES, 0);
231 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, VideoPES, 0);
241 int av7110_pes_play(void *dest, struct dvb_ringbuffer *buf, int dlen)
248 wake_up(&buf->queue);
252 if ((len = dvb_ringbuffer_avail(buf)) < 6)
254 sync = DVB_RINGBUFFER_PEEK(buf, 0) << 24;
255 sync |= DVB_RINGBUFFER_PEEK(buf, 1) << 16;
256 sync |= DVB_RINGBUFFER_PEEK(buf, 2) << 8;
257 sync |= DVB_RINGBUFFER_PEEK(buf, 3);
259 if (((sync &~ 0x0f) == 0x000001e0) ||
260 ((sync &~ 0x1f) == 0x000001c0) ||
261 (sync == 0x000001bd))
264 DVB_RINGBUFFER_SKIP(buf, 1);
266 blen = DVB_RINGBUFFER_PEEK(buf, 4) << 8;
267 blen |= DVB_RINGBUFFER_PEEK(buf, 5);
269 if (len < blen || blen > dlen) {
270 //printk("buffer empty - avail %d blen %u dlen %d\n", len, blen, dlen);
271 wake_up(&buf->queue);
275 dvb_ringbuffer_read(buf, dest, (size_t) blen, 0);
277 dprintk(2, "pread=0x%08lx, pwrite=0x%08lx\n",
278 (unsigned long) buf->pread, (unsigned long) buf->pwrite);
279 wake_up(&buf->queue);
284 int av7110_set_volume(struct av7110 *av7110, int volleft, int volright)
286 int err, vol, val, balance = 0;
288 dprintk(2, "av7110:%p, \n", av7110);
290 av7110->mixer.volume_left = volleft;
291 av7110->mixer.volume_right = volright;
293 switch (av7110->adac_type) {
295 volleft = (volleft * 256) / 1036;
296 volright = (volright * 256) / 1036;
301 if ((err = SendDAC(av7110, 3, 0x80 + volleft)))
303 return SendDAC(av7110, 4, volright);
305 case DVB_ADAC_CRYSTAL:
306 volleft = 127 - volleft / 2;
307 volright = 127 - volright / 2;
308 i2c_writereg(av7110, 0x20, 0x03, volleft);
309 i2c_writereg(av7110, 0x20, 0x04, volright);
312 case DVB_ADAC_MSP34x0:
313 vol = (volleft > volright) ? volleft : volright;
314 val = (vol * 0x73 / 255) << 8;
316 balance = ((volright - volleft) * 127) / vol;
317 msp_writereg(av7110, MSP_WR_DSP, 0x0001, balance << 8);
318 msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */
319 msp_writereg(av7110, MSP_WR_DSP, 0x0006, val); /* headphonesr */
322 case DVB_ADAC_MSP34x5:
323 vol = (volleft > volright) ? volleft : volright;
324 val = (vol * 0x73 / 255) << 8;
326 balance = ((volright - volleft) * 127) / vol;
327 msp_writereg(av7110, MSP_WR_DSP, 0x0001, balance << 8);
328 msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */
335 int av7110_set_vidmode(struct av7110 *av7110, int mode)
338 dprintk(2, "av7110:%p, \n", av7110);
340 ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, LoadVidCode, 1, mode);
342 if (!ret && !av7110->playing) {
343 ret = ChangePIDs(av7110, av7110->pids[DMX_PES_VIDEO],
344 av7110->pids[DMX_PES_AUDIO],
345 av7110->pids[DMX_PES_TELETEXT],
346 0, av7110->pids[DMX_PES_PCR]);
348 ret = av7110_fw_cmd(av7110, COMTYPE_PIDFILTER, Scan, 0);
354 static int sw2mode[16] = {
355 VIDEO_MODE_PAL, VIDEO_MODE_NTSC, VIDEO_MODE_NTSC, VIDEO_MODE_PAL,
356 VIDEO_MODE_NTSC, VIDEO_MODE_NTSC, VIDEO_MODE_PAL, VIDEO_MODE_NTSC,
357 VIDEO_MODE_PAL, VIDEO_MODE_PAL, VIDEO_MODE_PAL, VIDEO_MODE_PAL,
358 VIDEO_MODE_PAL, VIDEO_MODE_PAL, VIDEO_MODE_PAL, VIDEO_MODE_PAL,
361 static int get_video_format(struct av7110 *av7110, u8 *buf, int count)
369 dprintk(2, "av7110:%p, \n", av7110);
373 for (i = 7; i < count - 10; i++) {
375 if (p[0] || p[1] || p[2] != 0x01 || p[3] != 0xb3)
378 hsize = ((p[1] &0xF0) >> 4) | (p[0] << 4);
379 vsize = ((p[1] &0x0F) << 8) | (p[2]);
381 ret = av7110_set_vidmode(av7110, sw2mode[sw]);
383 dprintk(2, "playback %dx%d fr=%d\n", hsize, vsize, sw);
392 /****************************************************************************
393 * I/O buffer management and control
394 ****************************************************************************/
396 static inline long aux_ring_buffer_write(struct dvb_ringbuffer *rbuf,
397 const char *buf, unsigned long count)
399 unsigned long todo = count;
403 if (dvb_ringbuffer_free(rbuf) < 2048) {
404 if (wait_event_interruptible(rbuf->queue,
405 (dvb_ringbuffer_free(rbuf) >= 2048)))
408 free = dvb_ringbuffer_free(rbuf);
411 dvb_ringbuffer_write(rbuf, buf, free);
419 static void play_video_cb(u8 *buf, int count, void *priv)
421 struct av7110 *av7110 = (struct av7110 *) priv;
422 dprintk(2, "av7110:%p, \n", av7110);
424 if ((buf[3] & 0xe0) == 0xe0) {
425 get_video_format(av7110, buf, count);
426 aux_ring_buffer_write(&av7110->avout, buf, count);
428 aux_ring_buffer_write(&av7110->aout, buf, count);
431 static void play_audio_cb(u8 *buf, int count, void *priv)
433 struct av7110 *av7110 = (struct av7110 *) priv;
434 dprintk(2, "av7110:%p, \n", av7110);
436 aux_ring_buffer_write(&av7110->aout, buf, count);
439 #define FREE_COND (dvb_ringbuffer_free(&av7110->avout) >= 20 * 1024 && \
440 dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)
442 static ssize_t dvb_play(struct av7110 *av7110, const u8 __user *buf,
443 unsigned long count, int nonblock, int type)
445 unsigned long todo = count, n;
446 dprintk(2, "av7110:%p, \n", av7110);
448 if (!av7110->kbuf[type])
451 if (nonblock && !FREE_COND)
458 if (wait_event_interruptible(av7110->avout.queue,
465 if (copy_from_user(av7110->kbuf[type], buf, n))
467 av7110_ipack_instant_repack(av7110->kbuf[type], n,
468 &av7110->ipack[type]);
475 static ssize_t dvb_play_kernel(struct av7110 *av7110, const u8 *buf,
476 unsigned long count, int nonblock, int type)
478 unsigned long todo = count, n;
479 dprintk(2, "av7110:%p, \n", av7110);
481 if (!av7110->kbuf[type])
484 if (nonblock && !FREE_COND)
491 if (wait_event_interruptible(av7110->avout.queue,
498 av7110_ipack_instant_repack(buf, n, &av7110->ipack[type]);
505 static ssize_t dvb_aplay(struct av7110 *av7110, const u8 __user *buf,
506 unsigned long count, int nonblock, int type)
508 unsigned long todo = count, n;
509 dprintk(2, "av7110:%p, \n", av7110);
511 if (!av7110->kbuf[type])
513 if (nonblock && dvb_ringbuffer_free(&av7110->aout) < 20 * 1024)
517 if (dvb_ringbuffer_free(&av7110->aout) < 20 * 1024) {
520 if (wait_event_interruptible(av7110->aout.queue,
521 (dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)))
527 if (copy_from_user(av7110->kbuf[type], buf, n))
529 av7110_ipack_instant_repack(av7110->kbuf[type], n,
530 &av7110->ipack[type]);
537 void av7110_p2t_init(struct av7110_p2t *p, struct dvb_demux_feed *feed)
539 memset(p->pes, 0, TS_SIZE);
547 static void clear_p2t(struct av7110_p2t *p)
549 memset(p->pes, 0, TS_SIZE);
556 static int find_pes_header(u8 const *buf, long int length, int *frags)
563 while (c < length - 3 && !found) {
564 if (buf[c] == 0x00 && buf[c + 1] == 0x00 &&
565 buf[c + 2] == 0x01) {
566 switch ( buf[c + 3] ) {
567 case PROG_STREAM_MAP:
568 case PRIVATE_STREAM2:
569 case PROG_STREAM_DIR:
572 case PADDING_STREAM :
574 case ISO13522_STREAM:
575 case PRIVATE_STREAM1:
576 case AUDIO_STREAM_S ... AUDIO_STREAM_E:
577 case VIDEO_STREAM_S ... VIDEO_STREAM_E:
588 if (c == length - 3 && !found) {
589 if (buf[length - 1] == 0x00)
591 if (buf[length - 2] == 0x00 &&
592 buf[length - 1] == 0x00)
594 if (buf[length - 3] == 0x00 &&
595 buf[length - 2] == 0x00 &&
596 buf[length - 1] == 0x01)
604 void av7110_p2t_write(u8 const *buf, long int length, u16 pid, struct av7110_p2t *p)
615 if (buf[c] == 0x00 && buf[c + 1] == 0x01) {
621 if (buf[c] == 0x01) {
631 case PROG_STREAM_MAP:
632 case PRIVATE_STREAM2:
633 case PROG_STREAM_DIR:
636 case PADDING_STREAM :
638 case ISO13522_STREAM:
639 case PRIVATE_STREAM1:
640 case AUDIO_STREAM_S ... AUDIO_STREAM_E:
641 case VIDEO_STREAM_S ... VIDEO_STREAM_E:
647 memcpy(p->pes + p->pos, buf + c, (TS_SIZE - 4) - p->pos);
648 c += (TS_SIZE - 4) - p->pos;
649 p_to_t(p->pes, (TS_SIZE - 4), pid, &p->counter, p->feed);
662 c2 = find_pes_header(buf + c, length - c, &p->frags);
663 if (c2 >= 0 && c2 < (TS_SIZE - 4) - p->pos)
666 l = (TS_SIZE - 4) - p->pos;
667 memcpy(p->pes + p->pos, buf, l);
670 p_to_t(p->pes, p->pos, pid, &p->counter, p->feed);
676 c2 = find_pes_header(buf + c + add, length - c - add, &p->frags);
680 p_to_t(buf + c, c2 - c, pid, &p->counter, p->feed);
688 rest = l % (TS_SIZE - 4);
690 p_to_t(buf + c, l, pid, &p->counter, p->feed);
691 memcpy(p->pes, buf + c + l, rest);
699 static int write_ts_header2(u16 pid, u8 *counter, int pes_start, u8 *buf, u8 length)
704 u8 tshead[4] = { 0x47, 0x00, 0x00, 0x10 };
706 fill = (TS_SIZE - 4) - length;
711 tshead[1] |= (u8)((pid & 0x1F00) >> 8);
712 tshead[2] |= (u8)(pid & 0x00FF);
713 tshead[3] |= ((*counter)++ & 0x0F);
714 memcpy(buf, tshead, 4);
724 for (i = 6; i < fill + 4; i++) {
734 static void p_to_t(u8 const *buf, long int length, u16 pid, u8 *counter,
735 struct dvb_demux_feed *feed)
743 buf[0] == 0x00 && buf[1] == 0x00 && buf[2] == 0x01)
745 case PROG_STREAM_MAP:
746 case PRIVATE_STREAM2:
747 case PROG_STREAM_DIR:
750 case PADDING_STREAM :
752 case ISO13522_STREAM:
753 case PRIVATE_STREAM1:
754 case AUDIO_STREAM_S ... AUDIO_STREAM_E:
755 case VIDEO_STREAM_S ... VIDEO_STREAM_E:
764 memset(obuf, 0, TS_SIZE);
765 if (length - c >= (TS_SIZE - 4)){
766 l = write_ts_header2(pid, counter, pes_start,
767 obuf, (TS_SIZE - 4));
768 memcpy(obuf + l, buf + c, TS_SIZE - l);
771 l = write_ts_header2(pid, counter, pes_start,
773 memcpy(obuf + l, buf + c, TS_SIZE - l);
776 feed->cb.ts(obuf, 188, NULL, 0, &feed->feed.ts, DMX_OK);
782 int av7110_write_to_decoder(struct dvb_demux_feed *feed, const u8 *buf, size_t len)
784 struct dvb_demux *demux = feed->demux;
785 struct av7110 *av7110 = (struct av7110 *) demux->priv;
786 struct ipack *ipack = &av7110->ipack[feed->pes_type];
788 dprintk(2, "av7110:%p, \n", av7110);
790 switch (feed->pes_type) {
792 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
796 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY)
803 if (!(buf[3] & 0x10)) /* no payload? */
806 av7110_ipack_flush(ipack);
808 if (buf[3] & 0x20) { /* adaptation field? */
815 av7110_ipack_instant_repack(buf + 4, len - 4, &av7110->ipack[feed->pes_type]);
821 /******************************************************************************
822 * Video MPEG decoder events
823 ******************************************************************************/
824 void dvb_video_add_event(struct av7110 *av7110, struct video_event *event)
826 struct dvb_video_events *events = &av7110->video_events;
829 spin_lock_bh(&events->lock);
831 wp = (events->eventw + 1) % MAX_VIDEO_EVENT;
832 if (wp == events->eventr) {
833 events->overflow = 1;
834 events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT;
838 memcpy(&events->events[events->eventw], event, sizeof(struct video_event));
841 spin_unlock_bh(&events->lock);
843 wake_up_interruptible(&events->wait_queue);
847 static int dvb_video_get_event (struct av7110 *av7110, struct video_event *event, int flags)
849 struct dvb_video_events *events = &av7110->video_events;
851 if (events->overflow) {
852 events->overflow = 0;
855 if (events->eventw == events->eventr) {
858 if (flags & O_NONBLOCK)
861 ret = wait_event_interruptible(events->wait_queue,
862 events->eventw != events->eventr);
867 spin_lock_bh(&events->lock);
869 memcpy(event, &events->events[events->eventr],
870 sizeof(struct video_event));
871 events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT;
873 spin_unlock_bh(&events->lock);
879 /******************************************************************************
880 * DVB device file operations
881 ******************************************************************************/
883 static unsigned int dvb_video_poll(struct file *file, poll_table *wait)
885 struct dvb_device *dvbdev = (struct dvb_device *) file->private_data;
886 struct av7110 *av7110 = (struct av7110 *) dvbdev->priv;
887 unsigned int mask = 0;
889 dprintk(2, "av7110:%p, \n", av7110);
891 if ((file->f_flags & O_ACCMODE) != O_RDONLY)
892 poll_wait(file, &av7110->avout.queue, wait);
894 poll_wait(file, &av7110->video_events.wait_queue, wait);
896 if (av7110->video_events.eventw != av7110->video_events.eventr)
899 if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
900 if (av7110->playing) {
902 mask |= (POLLOUT | POLLWRNORM);
903 } else /* if not playing: may play if asked for */
904 mask |= (POLLOUT | POLLWRNORM);
910 static ssize_t dvb_video_write(struct file *file, const char __user *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 dprintk(2, "av7110:%p, \n", av7110);
918 if ((file->f_flags & O_ACCMODE) == O_RDONLY)
921 if (av7110->videostate.stream_source != VIDEO_SOURCE_MEMORY)
924 return dvb_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 1);
927 static unsigned int dvb_audio_poll(struct file *file, poll_table *wait)
929 struct dvb_device *dvbdev = (struct dvb_device *) file->private_data;
930 struct av7110 *av7110 = (struct av7110 *) dvbdev->priv;
931 unsigned int mask = 0;
933 dprintk(2, "av7110:%p, \n", av7110);
935 poll_wait(file, &av7110->aout.queue, wait);
937 if (av7110->playing) {
938 if (dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)
939 mask |= (POLLOUT | POLLWRNORM);
940 } else /* if not playing: may play if asked for */
941 mask = (POLLOUT | POLLWRNORM);
946 static ssize_t dvb_audio_write(struct file *file, const char __user *buf,
947 size_t count, loff_t *ppos)
949 struct dvb_device *dvbdev = (struct dvb_device *) file->private_data;
950 struct av7110 *av7110 = (struct av7110 *) dvbdev->priv;
952 dprintk(2, "av7110:%p, \n", av7110);
954 if (av7110->audiostate.stream_source != AUDIO_SOURCE_MEMORY) {
955 printk(KERN_ERR "not audio source memory\n");
958 return dvb_aplay(av7110, buf, count, file->f_flags & O_NONBLOCK, 0);
961 static u8 iframe_header[] = { 0x00, 0x00, 0x01, 0xe0, 0x00, 0x00, 0x80, 0x00, 0x00 };
963 #define MIN_IFRAME 400000
965 static int play_iframe(struct av7110 *av7110, u8 __user *buf, unsigned int len, int nonblock)
969 dprintk(2, "av7110:%p, \n", av7110);
971 if (!(av7110->playing & RP_VIDEO)) {
972 if (av7110_av_start_play(av7110, RP_VIDEO) < 0)
976 /* setting n always > 1, fixes problems when playing stillframes
977 consisting of I- and P-Frames */
978 n = MIN_IFRAME / len + 1;
980 /* FIXME: nonblock? */
981 dvb_play_kernel(av7110, iframe_header, sizeof(iframe_header), 0, 1);
983 for (i = 0; i < n; i++)
984 dvb_play(av7110, buf, len, 0, 1);
986 av7110_ipack_flush(&av7110->ipack[1]);
991 static int dvb_video_ioctl(struct inode *inode, struct file *file,
992 unsigned int cmd, void *parg)
994 struct dvb_device *dvbdev = (struct dvb_device *) file->private_data;
995 struct av7110 *av7110 = (struct av7110 *) dvbdev->priv;
996 unsigned long arg = (unsigned long) parg;
999 dprintk(1, "av7110:%p, cmd=%04x\n", av7110,cmd);
1001 if ((file->f_flags & O_ACCMODE) == O_RDONLY) {
1002 if ( cmd != VIDEO_GET_STATUS && cmd != VIDEO_GET_EVENT &&
1003 cmd != VIDEO_GET_SIZE ) {
1010 av7110->videostate.play_state = VIDEO_STOPPED;
1011 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY)
1012 ret = av7110_av_stop(av7110, RP_VIDEO);
1014 ret = vidcom(av7110, VIDEO_CMD_STOP,
1015 av7110->videostate.video_blank ? 0 : 1);
1017 av7110->trickmode = TRICK_NONE;
1021 av7110->trickmode = TRICK_NONE;
1022 if (av7110->videostate.play_state == VIDEO_FREEZED) {
1023 av7110->videostate.play_state = VIDEO_PLAYING;
1024 ret = vidcom(av7110, VIDEO_CMD_PLAY, 0);
1029 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY) {
1030 if (av7110->playing == RP_AV) {
1031 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
1034 av7110->playing &= ~RP_VIDEO;
1036 ret = av7110_av_start_play(av7110, RP_VIDEO);
1039 ret = vidcom(av7110, VIDEO_CMD_PLAY, 0);
1041 av7110->videostate.play_state = VIDEO_PLAYING;
1045 av7110->videostate.play_state = VIDEO_FREEZED;
1046 if (av7110->playing & RP_VIDEO)
1047 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Pause, 0);
1049 ret = vidcom(av7110, VIDEO_CMD_FREEZE, 1);
1051 av7110->trickmode = TRICK_FREEZE;
1054 case VIDEO_CONTINUE:
1055 if (av7110->playing & RP_VIDEO)
1056 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Continue, 0);
1058 ret = vidcom(av7110, VIDEO_CMD_PLAY, 0);
1060 av7110->videostate.play_state = VIDEO_PLAYING;
1061 av7110->trickmode = TRICK_NONE;
1065 case VIDEO_SELECT_SOURCE:
1066 av7110->videostate.stream_source = (video_stream_source_t) arg;
1069 case VIDEO_SET_BLANK:
1070 av7110->videostate.video_blank = (int) arg;
1073 case VIDEO_GET_STATUS:
1074 memcpy(parg, &av7110->videostate, sizeof(struct video_status));
1077 case VIDEO_GET_EVENT:
1078 ret = dvb_video_get_event(av7110, parg, file->f_flags);
1081 case VIDEO_GET_SIZE:
1082 memcpy(parg, &av7110->video_size, sizeof(video_size_t));
1085 case VIDEO_SET_DISPLAY_FORMAT:
1087 video_displayformat_t format = (video_displayformat_t) arg;
1091 case VIDEO_PAN_SCAN:
1092 val = VID_PAN_SCAN_PREF;
1095 case VIDEO_LETTER_BOX:
1096 val = VID_VC_AND_PS_PREF;
1099 case VIDEO_CENTER_CUT_OUT:
1100 val = VID_CENTRE_CUT_PREF;
1108 av7110->videostate.display_format = format;
1109 ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetPanScanType,
1114 case VIDEO_SET_FORMAT:
1119 av7110->display_ar = arg;
1120 ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetMonitorType,
1124 case VIDEO_STILLPICTURE:
1126 struct video_still_picture *pic =
1127 (struct video_still_picture *) parg;
1128 av7110->videostate.stream_source = VIDEO_SOURCE_MEMORY;
1129 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1130 ret = play_iframe(av7110, pic->iFrame, pic->size,
1131 file->f_flags & O_NONBLOCK);
1135 case VIDEO_FAST_FORWARD:
1136 //note: arg is ignored by firmware
1137 if (av7110->playing & RP_VIDEO)
1138 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1139 __Scan_I, 2, AV_PES, 0);
1141 ret = vidcom(av7110, VIDEO_CMD_FFWD, arg);
1143 av7110->trickmode = TRICK_FAST;
1144 av7110->videostate.play_state = VIDEO_PLAYING;
1148 case VIDEO_SLOWMOTION:
1149 if (av7110->playing&RP_VIDEO) {
1150 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Slow, 2, 0, 0);
1152 ret = vidcom(av7110, VIDEO_CMD_SLOW, arg);
1154 ret = vidcom(av7110, VIDEO_CMD_PLAY, 0);
1156 ret = vidcom(av7110, VIDEO_CMD_STOP, 0);
1158 ret = vidcom(av7110, VIDEO_CMD_SLOW, arg);
1161 av7110->trickmode = TRICK_SLOW;
1162 av7110->videostate.play_state = VIDEO_PLAYING;
1166 case VIDEO_GET_CAPABILITIES:
1167 *(int *)parg = VIDEO_CAP_MPEG1 | VIDEO_CAP_MPEG2 |
1168 VIDEO_CAP_SYS | VIDEO_CAP_PROG;
1171 case VIDEO_CLEAR_BUFFER:
1172 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1173 av7110_ipack_reset(&av7110->ipack[1]);
1175 if (av7110->playing == RP_AV) {
1176 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1177 __Play, 2, AV_PES, 0);
1180 if (av7110->trickmode == TRICK_FAST)
1181 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1182 __Scan_I, 2, AV_PES, 0);
1183 if (av7110->trickmode == TRICK_SLOW) {
1184 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1187 ret = vidcom(av7110, VIDEO_CMD_SLOW, arg);
1189 if (av7110->trickmode == TRICK_FREEZE)
1190 ret = vidcom(av7110, VIDEO_CMD_STOP, 1);
1194 case VIDEO_SET_STREAMTYPE:
1205 static int dvb_audio_ioctl(struct inode *inode, struct file *file,
1206 unsigned int cmd, void *parg)
1208 struct dvb_device *dvbdev = (struct dvb_device *) file->private_data;
1209 struct av7110 *av7110 = (struct av7110 *) dvbdev->priv;
1210 unsigned long arg = (unsigned long) parg;
1213 dprintk(1, "av7110:%p, cmd=%04x\n", av7110,cmd);
1215 if (((file->f_flags & O_ACCMODE) == O_RDONLY) &&
1216 (cmd != AUDIO_GET_STATUS))
1221 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
1222 ret = av7110_av_stop(av7110, RP_AUDIO);
1224 ret = audcom(av7110, AUDIO_CMD_MUTE);
1226 av7110->audiostate.play_state = AUDIO_STOPPED;
1230 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
1231 ret = av7110_av_start_play(av7110, RP_AUDIO);
1233 ret = audcom(av7110, AUDIO_CMD_UNMUTE);
1235 av7110->audiostate.play_state = AUDIO_PLAYING;
1239 ret = audcom(av7110, AUDIO_CMD_MUTE);
1241 av7110->audiostate.play_state = AUDIO_PAUSED;
1244 case AUDIO_CONTINUE:
1245 if (av7110->audiostate.play_state == AUDIO_PAUSED) {
1246 av7110->audiostate.play_state = AUDIO_PLAYING;
1247 ret = audcom(av7110, AUDIO_CMD_UNMUTE | AUDIO_CMD_PCM16);
1251 case AUDIO_SELECT_SOURCE:
1252 av7110->audiostate.stream_source = (audio_stream_source_t) arg;
1255 case AUDIO_SET_MUTE:
1257 ret = audcom(av7110, arg ? AUDIO_CMD_MUTE : AUDIO_CMD_UNMUTE);
1259 av7110->audiostate.mute_state = (int) arg;
1263 case AUDIO_SET_AV_SYNC:
1264 av7110->audiostate.AV_sync_state = (int) arg;
1265 ret = audcom(av7110, arg ? AUDIO_CMD_SYNC_ON : AUDIO_CMD_SYNC_OFF);
1268 case AUDIO_SET_BYPASS_MODE:
1269 if (FW_VERSION(av7110->arm_app) < 0x2621)
1271 av7110->audiostate.bypass_mode = (int)arg;
1274 case AUDIO_CHANNEL_SELECT:
1275 av7110->audiostate.channel_select = (audio_channel_select_t) arg;
1277 switch(av7110->audiostate.channel_select) {
1279 ret = audcom(av7110, AUDIO_CMD_STEREO);
1281 if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1282 i2c_writereg(av7110, 0x20, 0x02, 0x49);
1283 else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1284 msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0220);
1288 case AUDIO_MONO_LEFT:
1289 ret = audcom(av7110, AUDIO_CMD_MONO_L);
1291 if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1292 i2c_writereg(av7110, 0x20, 0x02, 0x4a);
1293 else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1294 msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0200);
1298 case AUDIO_MONO_RIGHT:
1299 ret = audcom(av7110, AUDIO_CMD_MONO_R);
1301 if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1302 i2c_writereg(av7110, 0x20, 0x02, 0x45);
1303 else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1304 msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0210);
1314 case AUDIO_GET_STATUS:
1315 memcpy(parg, &av7110->audiostate, sizeof(struct audio_status));
1318 case AUDIO_GET_CAPABILITIES:
1319 if (FW_VERSION(av7110->arm_app) < 0x2621)
1320 *(unsigned int *)parg = AUDIO_CAP_LPCM | AUDIO_CAP_MP1 | AUDIO_CAP_MP2;
1322 *(unsigned int *)parg = AUDIO_CAP_LPCM | AUDIO_CAP_DTS | AUDIO_CAP_AC3 |
1323 AUDIO_CAP_MP1 | AUDIO_CAP_MP2;
1326 case AUDIO_CLEAR_BUFFER:
1327 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1328 av7110_ipack_reset(&av7110->ipack[0]);
1329 if (av7110->playing == RP_AV)
1330 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1331 __Play, 2, AV_PES, 0);
1336 case AUDIO_SET_MIXER:
1338 struct audio_mixer *amix = (struct audio_mixer *)parg;
1340 ret = av7110_set_volume(av7110, amix->volume_left, amix->volume_right);
1343 case AUDIO_SET_STREAMTYPE:
1352 static int dvb_video_open(struct inode *inode, struct file *file)
1354 struct dvb_device *dvbdev = (struct dvb_device *) file->private_data;
1355 struct av7110 *av7110 = (struct av7110 *) dvbdev->priv;
1358 dprintk(2, "av7110:%p, \n", av7110);
1360 if ((err = dvb_generic_open(inode, file)) < 0)
1363 if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
1364 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1365 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1366 av7110->video_blank = 1;
1367 av7110->audiostate.AV_sync_state = 1;
1368 av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX;
1370 /* empty event queue */
1371 av7110->video_events.eventr = av7110->video_events.eventw = 0;
1377 static int dvb_video_release(struct inode *inode, struct file *file)
1379 struct dvb_device *dvbdev = (struct dvb_device *) file->private_data;
1380 struct av7110 *av7110 = (struct av7110 *) dvbdev->priv;
1382 dprintk(2, "av7110:%p, \n", av7110);
1384 if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
1385 av7110_av_stop(av7110, RP_VIDEO);
1388 return dvb_generic_release(inode, file);
1391 static int dvb_audio_open(struct inode *inode, struct file *file)
1393 struct dvb_device *dvbdev = (struct dvb_device *) file->private_data;
1394 struct av7110 *av7110 = (struct av7110 *) dvbdev->priv;
1395 int err=dvb_generic_open(inode, file);
1397 dprintk(2, "av7110:%p, \n", av7110);
1401 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1402 av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX;
1406 static int dvb_audio_release(struct inode *inode, struct file *file)
1408 struct dvb_device *dvbdev = (struct dvb_device *) file->private_data;
1409 struct av7110 *av7110 = (struct av7110 *) dvbdev->priv;
1411 dprintk(2, "av7110:%p, \n", av7110);
1413 av7110_av_stop(av7110, RP_AUDIO);
1414 return dvb_generic_release(inode, file);
1419 /******************************************************************************
1420 * driver registration
1421 ******************************************************************************/
1423 static struct file_operations dvb_video_fops = {
1424 .owner = THIS_MODULE,
1425 .write = dvb_video_write,
1426 .ioctl = dvb_generic_ioctl,
1427 .open = dvb_video_open,
1428 .release = dvb_video_release,
1429 .poll = dvb_video_poll,
1432 static struct dvb_device dvbdev_video = {
1435 .readers = 5, /* arbitrary */
1437 .fops = &dvb_video_fops,
1438 .kernel_ioctl = dvb_video_ioctl,
1441 static struct file_operations dvb_audio_fops = {
1442 .owner = THIS_MODULE,
1443 .write = dvb_audio_write,
1444 .ioctl = dvb_generic_ioctl,
1445 .open = dvb_audio_open,
1446 .release = dvb_audio_release,
1447 .poll = dvb_audio_poll,
1450 static struct dvb_device dvbdev_audio = {
1454 .fops = &dvb_audio_fops,
1455 .kernel_ioctl = dvb_audio_ioctl,
1459 int av7110_av_register(struct av7110 *av7110)
1461 av7110->audiostate.AV_sync_state = 0;
1462 av7110->audiostate.mute_state = 0;
1463 av7110->audiostate.play_state = AUDIO_STOPPED;
1464 av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX;
1465 av7110->audiostate.channel_select = AUDIO_STEREO;
1466 av7110->audiostate.bypass_mode = 0;
1468 av7110->videostate.video_blank = 0;
1469 av7110->videostate.play_state = VIDEO_STOPPED;
1470 av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX;
1471 av7110->videostate.video_format = VIDEO_FORMAT_4_3;
1472 av7110->videostate.display_format = VIDEO_CENTER_CUT_OUT;
1473 av7110->display_ar = VIDEO_FORMAT_4_3;
1475 init_waitqueue_head(&av7110->video_events.wait_queue);
1476 spin_lock_init(&av7110->video_events.lock);
1477 av7110->video_events.eventw = av7110->video_events.eventr = 0;
1478 av7110->video_events.overflow = 0;
1479 memset(&av7110->video_size, 0, sizeof (video_size_t));
1481 dvb_register_device(&av7110->dvb_adapter, &av7110->video_dev,
1482 &dvbdev_video, av7110, DVB_DEVICE_VIDEO);
1484 dvb_register_device(&av7110->dvb_adapter, &av7110->audio_dev,
1485 &dvbdev_audio, av7110, DVB_DEVICE_AUDIO);
1490 void av7110_av_unregister(struct av7110 *av7110)
1492 dvb_unregister_device(av7110->audio_dev);
1493 dvb_unregister_device(av7110->video_dev);
1496 int av7110_av_init(struct av7110 *av7110)
1498 void (*play[])(u8 *, int, void *) = { play_audio_cb, play_video_cb };
1501 for (i = 0; i < 2; i++) {
1502 struct ipack *ipack = av7110->ipack + i;
1504 ret = av7110_ipack_init(ipack, IPACKS, play[i]);
1507 av7110_ipack_free(--ipack);
1510 ipack->data = av7110;
1513 dvb_ringbuffer_init(&av7110->avout, av7110->iobuf, AVOUTLEN);
1514 dvb_ringbuffer_init(&av7110->aout, av7110->iobuf + AVOUTLEN, AOUTLEN);
1516 av7110->kbuf[0] = (u8 *)(av7110->iobuf + AVOUTLEN + AOUTLEN + BMPLEN);
1517 av7110->kbuf[1] = av7110->kbuf[0] + 2 * IPACKS;
1522 void av7110_av_exit(struct av7110 *av7110)
1524 av7110_ipack_free(&av7110->ipack[0]);
1525 av7110_ipack_free(&av7110->ipack[1]);