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/
31 #include <linux/types.h>
32 #include <linux/kernel.h>
33 #include <linux/string.h>
34 #include <linux/delay.h>
38 #include "av7110_hw.h"
39 #include "av7110_av.h"
40 #include "av7110_ipack.h"
42 /* MPEG-2 (ISO 13818 / H.222.0) stream types */
43 #define PROG_STREAM_MAP 0xBC
44 #define PRIVATE_STREAM1 0xBD
45 #define PADDING_STREAM 0xBE
46 #define PRIVATE_STREAM2 0xBF
47 #define AUDIO_STREAM_S 0xC0
48 #define AUDIO_STREAM_E 0xDF
49 #define VIDEO_STREAM_S 0xE0
50 #define VIDEO_STREAM_E 0xEF
51 #define ECM_STREAM 0xF0
52 #define EMM_STREAM 0xF1
53 #define DSM_CC_STREAM 0xF2
54 #define ISO13522_STREAM 0xF3
55 #define PROG_STREAM_DIR 0xFF
57 #define PTS_DTS_FLAGS 0xC0
63 #define TRANS_ERROR 0x80
64 #define PAY_START 0x40
65 #define TRANS_PRIO 0x20
66 #define PID_MASK_HI 0x1F
68 #define TRANS_SCRMBL1 0x80
69 #define TRANS_SCRMBL2 0x40
70 #define ADAPT_FIELD 0x20
72 #define COUNT_MASK 0x0F
75 #define DISCON_IND 0x80
76 #define RAND_ACC_IND 0x40
77 #define ES_PRI_IND 0x20
79 #define OPCR_FLAG 0x08
80 #define SPLICE_FLAG 0x04
81 #define TRANS_PRIV 0x02
82 #define ADAP_EXT_FLAG 0x01
84 // adaptation extension flags
86 #define PIECE_RATE 0x40
87 #define SEAM_SPLICE 0x20
90 static void p_to_t(u8 const *buf, long int length, u16 pid,
91 u8 *counter, struct dvb_demux_feed *feed);
92 static int write_ts_to_decoder(struct av7110 *av7110, int type, const u8 *buf, size_t len);
95 int av7110_record_cb(struct dvb_filter_pes2ts *p2t, u8 *buf, size_t len)
97 struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *) p2t->priv;
99 if (!(dvbdmxfeed->ts_type & TS_PACKET))
101 if (buf[3] == 0xe0) // video PES do not have a length in TS
103 if (dvbdmxfeed->ts_type & TS_PAYLOAD_ONLY)
104 return dvbdmxfeed->cb.ts(buf, len, NULL, 0,
105 &dvbdmxfeed->feed.ts, DMX_OK);
107 return dvb_filter_pes2ts(p2t, buf, len, 1);
110 static int dvb_filter_pes2ts_cb(void *priv, unsigned char *data)
112 struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *) priv;
114 dvbdmxfeed->cb.ts(data, 188, NULL, 0,
115 &dvbdmxfeed->feed.ts, DMX_OK);
119 int av7110_av_start_record(struct av7110 *av7110, int av,
120 struct dvb_demux_feed *dvbdmxfeed)
123 struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
125 dprintk(2, "av7110:%p, , dvb_demux_feed:%p\n", av7110, dvbdmxfeed);
127 if (av7110->playing || (av7110->rec_mode & av))
129 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
130 dvbdmx->recording = 1;
131 av7110->rec_mode |= av;
133 switch (av7110->rec_mode) {
135 dvb_filter_pes2ts_init(&av7110->p2t[0],
136 dvbdmx->pesfilter[0]->pid,
137 dvb_filter_pes2ts_cb,
138 (void *) dvbdmx->pesfilter[0]);
139 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AudioPES, 0);
143 dvb_filter_pes2ts_init(&av7110->p2t[1],
144 dvbdmx->pesfilter[1]->pid,
145 dvb_filter_pes2ts_cb,
146 (void *) dvbdmx->pesfilter[1]);
147 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, VideoPES, 0);
151 dvb_filter_pes2ts_init(&av7110->p2t[0],
152 dvbdmx->pesfilter[0]->pid,
153 dvb_filter_pes2ts_cb,
154 (void *) dvbdmx->pesfilter[0]);
155 dvb_filter_pes2ts_init(&av7110->p2t[1],
156 dvbdmx->pesfilter[1]->pid,
157 dvb_filter_pes2ts_cb,
158 (void *) dvbdmx->pesfilter[1]);
159 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AV_PES, 0);
165 int av7110_av_start_play(struct av7110 *av7110, int av)
168 dprintk(2, "av7110:%p, \n", av7110);
170 if (av7110->rec_mode)
172 if (av7110->playing & av)
175 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
177 if (av7110->playing == RP_NONE) {
178 av7110_ipack_reset(&av7110->ipack[0]);
179 av7110_ipack_reset(&av7110->ipack[1]);
182 av7110->playing |= av;
183 switch (av7110->playing) {
185 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AudioPES, 0);
188 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, VideoPES, 0);
193 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AV_PES, 0);
199 int av7110_av_stop(struct av7110 *av7110, int av)
202 dprintk(2, "av7110:%p, \n", av7110);
204 if (!(av7110->playing & av) && !(av7110->rec_mode & av))
206 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
207 if (av7110->playing) {
208 av7110->playing &= ~av;
209 switch (av7110->playing) {
211 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AudioPES, 0);
214 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, VideoPES, 0);
217 ret = av7110_set_vidmode(av7110, av7110->vidmode);
221 av7110->rec_mode &= ~av;
222 switch (av7110->rec_mode) {
224 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AudioPES, 0);
227 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, VideoPES, 0);
237 int av7110_pes_play(void *dest, struct dvb_ringbuffer *buf, int dlen)
244 wake_up(&buf->queue);
248 len = dvb_ringbuffer_avail(buf);
250 wake_up(&buf->queue);
253 sync = DVB_RINGBUFFER_PEEK(buf, 0) << 24;
254 sync |= DVB_RINGBUFFER_PEEK(buf, 1) << 16;
255 sync |= DVB_RINGBUFFER_PEEK(buf, 2) << 8;
256 sync |= DVB_RINGBUFFER_PEEK(buf, 3);
258 if (((sync &~ 0x0f) == 0x000001e0) ||
259 ((sync &~ 0x1f) == 0x000001c0) ||
260 (sync == 0x000001bd))
263 DVB_RINGBUFFER_SKIP(buf, 1);
265 blen = DVB_RINGBUFFER_PEEK(buf, 4) << 8;
266 blen |= DVB_RINGBUFFER_PEEK(buf, 5);
268 if (len < blen || blen > dlen) {
269 //printk("buffer empty - avail %d blen %u dlen %d\n", len, blen, dlen);
270 wake_up(&buf->queue);
274 dvb_ringbuffer_read(buf, dest, (size_t) blen);
276 dprintk(2, "pread=0x%08lx, pwrite=0x%08lx\n",
277 (unsigned long) buf->pread, (unsigned long) buf->pwrite);
278 wake_up(&buf->queue);
283 int av7110_set_volume(struct av7110 *av7110, int volleft, int volright)
285 int err, vol, val, balance = 0;
287 dprintk(2, "av7110:%p, \n", av7110);
289 av7110->mixer.volume_left = volleft;
290 av7110->mixer.volume_right = volright;
292 switch (av7110->adac_type) {
294 volleft = (volleft * 256) / 1036;
295 volright = (volright * 256) / 1036;
300 if ((err = SendDAC(av7110, 3, 0x80 + volleft)))
302 return SendDAC(av7110, 4, volright);
304 case DVB_ADAC_CRYSTAL:
305 volleft = 127 - volleft / 2;
306 volright = 127 - volright / 2;
307 i2c_writereg(av7110, 0x20, 0x03, volleft);
308 i2c_writereg(av7110, 0x20, 0x04, volright);
311 case DVB_ADAC_MSP34x0:
312 vol = (volleft > volright) ? volleft : volright;
313 val = (vol * 0x73 / 255) << 8;
315 balance = ((volright - volleft) * 127) / vol;
316 msp_writereg(av7110, MSP_WR_DSP, 0x0001, balance << 8);
317 msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */
318 msp_writereg(av7110, MSP_WR_DSP, 0x0006, val); /* headphonesr */
321 case DVB_ADAC_MSP34x5:
322 vol = (volleft > volright) ? volleft : volright;
323 val = (vol * 0x73 / 255) << 8;
325 balance = ((volright - volleft) * 127) / vol;
326 msp_writereg(av7110, MSP_WR_DSP, 0x0001, balance << 8);
327 msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */
334 int av7110_set_vidmode(struct av7110 *av7110, enum av7110_video_mode mode)
337 dprintk(2, "av7110:%p, \n", av7110);
339 ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, LoadVidCode, 1, mode);
341 if (!ret && !av7110->playing) {
342 ret = ChangePIDs(av7110, av7110->pids[DMX_PES_VIDEO],
343 av7110->pids[DMX_PES_AUDIO],
344 av7110->pids[DMX_PES_TELETEXT],
345 0, av7110->pids[DMX_PES_PCR]);
347 ret = av7110_fw_cmd(av7110, COMTYPE_PIDFILTER, Scan, 0);
353 static enum av7110_video_mode sw2mode[16] = {
354 AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_NTSC,
355 AV7110_VIDEO_MODE_NTSC, AV7110_VIDEO_MODE_PAL,
356 AV7110_VIDEO_MODE_NTSC, AV7110_VIDEO_MODE_NTSC,
357 AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_NTSC,
358 AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
359 AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
360 AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
361 AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
364 static int get_video_format(struct av7110 *av7110, u8 *buf, int count)
372 dprintk(2, "av7110:%p, \n", av7110);
376 for (i = 7; i < count - 10; i++) {
378 if (p[0] || p[1] || p[2] != 0x01 || p[3] != 0xb3)
381 hsize = ((p[1] &0xF0) >> 4) | (p[0] << 4);
382 vsize = ((p[1] &0x0F) << 8) | (p[2]);
384 ret = av7110_set_vidmode(av7110, sw2mode[sw]);
386 dprintk(2, "playback %dx%d fr=%d\n", hsize, vsize, sw);
395 /****************************************************************************
396 * I/O buffer management and control
397 ****************************************************************************/
399 static inline long aux_ring_buffer_write(struct dvb_ringbuffer *rbuf,
400 const u8 *buf, unsigned long count)
402 unsigned long todo = count;
406 if (dvb_ringbuffer_free(rbuf) < 2048) {
407 if (wait_event_interruptible(rbuf->queue,
408 (dvb_ringbuffer_free(rbuf) >= 2048)))
411 free = dvb_ringbuffer_free(rbuf);
414 dvb_ringbuffer_write(rbuf, buf, free);
422 static void play_video_cb(u8 *buf, int count, void *priv)
424 struct av7110 *av7110 = (struct av7110 *) priv;
425 dprintk(2, "av7110:%p, \n", av7110);
427 if ((buf[3] & 0xe0) == 0xe0) {
428 get_video_format(av7110, buf, count);
429 aux_ring_buffer_write(&av7110->avout, buf, count);
431 aux_ring_buffer_write(&av7110->aout, buf, count);
434 static void play_audio_cb(u8 *buf, int count, void *priv)
436 struct av7110 *av7110 = (struct av7110 *) priv;
437 dprintk(2, "av7110:%p, \n", av7110);
439 aux_ring_buffer_write(&av7110->aout, buf, count);
443 #define FREE_COND_TS (dvb_ringbuffer_free(rb) >= 4096)
445 static ssize_t ts_play(struct av7110 *av7110, const char __user *buf,
446 unsigned long count, int nonblock, int type)
448 struct dvb_ringbuffer *rb;
450 unsigned long todo = count;
452 dprintk(2, "%s: type %d cnt %lu\n", __func__, type, count);
454 rb = (type) ? &av7110->avout : &av7110->aout;
455 kb = av7110->kbuf[type];
460 if (nonblock && !FREE_COND_TS)
463 while (todo >= TS_SIZE) {
467 if (wait_event_interruptible(rb->queue, FREE_COND_TS))
470 if (copy_from_user(kb, buf, TS_SIZE))
472 write_ts_to_decoder(av7110, type, kb, TS_SIZE);
481 #define FREE_COND (dvb_ringbuffer_free(&av7110->avout) >= 20 * 1024 && \
482 dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)
484 static ssize_t dvb_play(struct av7110 *av7110, const char __user *buf,
485 unsigned long count, int nonblock, int type)
487 unsigned long todo = count, n;
488 dprintk(2, "av7110:%p, \n", av7110);
490 if (!av7110->kbuf[type])
493 if (nonblock && !FREE_COND)
500 if (wait_event_interruptible(av7110->avout.queue,
507 if (copy_from_user(av7110->kbuf[type], buf, n))
509 av7110_ipack_instant_repack(av7110->kbuf[type], n,
510 &av7110->ipack[type]);
517 static ssize_t dvb_play_kernel(struct av7110 *av7110, const u8 *buf,
518 unsigned long count, int nonblock, int type)
520 unsigned long todo = count, n;
521 dprintk(2, "av7110:%p, \n", av7110);
523 if (!av7110->kbuf[type])
526 if (nonblock && !FREE_COND)
533 if (wait_event_interruptible(av7110->avout.queue,
540 av7110_ipack_instant_repack(buf, n, &av7110->ipack[type]);
547 static ssize_t dvb_aplay(struct av7110 *av7110, const char __user *buf,
548 unsigned long count, int nonblock, int type)
550 unsigned long todo = count, n;
551 dprintk(2, "av7110:%p, \n", av7110);
553 if (!av7110->kbuf[type])
555 if (nonblock && dvb_ringbuffer_free(&av7110->aout) < 20 * 1024)
559 if (dvb_ringbuffer_free(&av7110->aout) < 20 * 1024) {
562 if (wait_event_interruptible(av7110->aout.queue,
563 (dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)))
569 if (copy_from_user(av7110->kbuf[type], buf, n))
571 av7110_ipack_instant_repack(av7110->kbuf[type], n,
572 &av7110->ipack[type]);
579 void av7110_p2t_init(struct av7110_p2t *p, struct dvb_demux_feed *feed)
581 memset(p->pes, 0, TS_SIZE);
589 static void clear_p2t(struct av7110_p2t *p)
591 memset(p->pes, 0, TS_SIZE);
598 static int find_pes_header(u8 const *buf, long int length, int *frags)
605 while (c < length - 3 && !found) {
606 if (buf[c] == 0x00 && buf[c + 1] == 0x00 &&
607 buf[c + 2] == 0x01) {
608 switch ( buf[c + 3] ) {
609 case PROG_STREAM_MAP:
610 case PRIVATE_STREAM2:
611 case PROG_STREAM_DIR:
614 case PADDING_STREAM :
616 case ISO13522_STREAM:
617 case PRIVATE_STREAM1:
618 case AUDIO_STREAM_S ... AUDIO_STREAM_E:
619 case VIDEO_STREAM_S ... VIDEO_STREAM_E:
630 if (c == length - 3 && !found) {
631 if (buf[length - 1] == 0x00)
633 if (buf[length - 2] == 0x00 &&
634 buf[length - 1] == 0x00)
636 if (buf[length - 3] == 0x00 &&
637 buf[length - 2] == 0x00 &&
638 buf[length - 1] == 0x01)
646 void av7110_p2t_write(u8 const *buf, long int length, u16 pid, struct av7110_p2t *p)
657 if (buf[c] == 0x00 && buf[c + 1] == 0x01) {
663 if (buf[c] == 0x01) {
673 case PROG_STREAM_MAP:
674 case PRIVATE_STREAM2:
675 case PROG_STREAM_DIR:
678 case PADDING_STREAM :
680 case ISO13522_STREAM:
681 case PRIVATE_STREAM1:
682 case AUDIO_STREAM_S ... AUDIO_STREAM_E:
683 case VIDEO_STREAM_S ... VIDEO_STREAM_E:
689 memcpy(p->pes + p->pos, buf + c, (TS_SIZE - 4) - p->pos);
690 c += (TS_SIZE - 4) - p->pos;
691 p_to_t(p->pes, (TS_SIZE - 4), pid, &p->counter, p->feed);
704 c2 = find_pes_header(buf + c, length - c, &p->frags);
705 if (c2 >= 0 && c2 < (TS_SIZE - 4) - p->pos)
708 l = (TS_SIZE - 4) - p->pos;
709 memcpy(p->pes + p->pos, buf, l);
712 p_to_t(p->pes, p->pos, pid, &p->counter, p->feed);
718 c2 = find_pes_header(buf + c + add, length - c - add, &p->frags);
722 p_to_t(buf + c, c2 - c, pid, &p->counter, p->feed);
730 rest = l % (TS_SIZE - 4);
732 p_to_t(buf + c, l, pid, &p->counter, p->feed);
733 memcpy(p->pes, buf + c + l, rest);
741 static int write_ts_header2(u16 pid, u8 *counter, int pes_start, u8 *buf, u8 length)
746 u8 tshead[4] = { 0x47, 0x00, 0x00, 0x10 };
748 fill = (TS_SIZE - 4) - length;
753 tshead[1] |= (u8)((pid & 0x1F00) >> 8);
754 tshead[2] |= (u8)(pid & 0x00FF);
755 tshead[3] |= ((*counter)++ & 0x0F);
756 memcpy(buf, tshead, 4);
766 for (i = 6; i < fill + 4; i++) {
776 static void p_to_t(u8 const *buf, long int length, u16 pid, u8 *counter,
777 struct dvb_demux_feed *feed)
785 buf[0] == 0x00 && buf[1] == 0x00 && buf[2] == 0x01)
787 case PROG_STREAM_MAP:
788 case PRIVATE_STREAM2:
789 case PROG_STREAM_DIR:
792 case PADDING_STREAM :
794 case ISO13522_STREAM:
795 case PRIVATE_STREAM1:
796 case AUDIO_STREAM_S ... AUDIO_STREAM_E:
797 case VIDEO_STREAM_S ... VIDEO_STREAM_E:
806 memset(obuf, 0, TS_SIZE);
807 if (length - c >= (TS_SIZE - 4)){
808 l = write_ts_header2(pid, counter, pes_start,
809 obuf, (TS_SIZE - 4));
810 memcpy(obuf + l, buf + c, TS_SIZE - l);
813 l = write_ts_header2(pid, counter, pes_start,
815 memcpy(obuf + l, buf + c, TS_SIZE - l);
818 feed->cb.ts(obuf, 188, NULL, 0, &feed->feed.ts, DMX_OK);
824 static int write_ts_to_decoder(struct av7110 *av7110, int type, const u8 *buf, size_t len)
826 struct ipack *ipack = &av7110->ipack[type];
828 if (buf[1] & TRANS_ERROR) {
829 av7110_ipack_reset(ipack);
833 if (!(buf[3] & PAYLOAD))
836 if (buf[1] & PAY_START)
837 av7110_ipack_flush(ipack);
839 if (buf[3] & ADAPT_FIELD) {
846 av7110_ipack_instant_repack(buf + 4, len - 4, ipack);
851 int av7110_write_to_decoder(struct dvb_demux_feed *feed, const u8 *buf, size_t len)
853 struct dvb_demux *demux = feed->demux;
854 struct av7110 *av7110 = (struct av7110 *) demux->priv;
856 dprintk(2, "av7110:%p, \n", av7110);
858 if (av7110->full_ts && demux->dmx.frontend->source != DMX_MEMORY_FE)
861 switch (feed->pes_type) {
863 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
867 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY)
874 return write_ts_to_decoder(av7110, feed->pes_type, buf, len);
879 /******************************************************************************
880 * Video MPEG decoder events
881 ******************************************************************************/
882 void dvb_video_add_event(struct av7110 *av7110, struct video_event *event)
884 struct dvb_video_events *events = &av7110->video_events;
887 spin_lock_bh(&events->lock);
889 wp = (events->eventw + 1) % MAX_VIDEO_EVENT;
890 if (wp == events->eventr) {
891 events->overflow = 1;
892 events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT;
896 memcpy(&events->events[events->eventw], event, sizeof(struct video_event));
899 spin_unlock_bh(&events->lock);
901 wake_up_interruptible(&events->wait_queue);
905 static int dvb_video_get_event (struct av7110 *av7110, struct video_event *event, int flags)
907 struct dvb_video_events *events = &av7110->video_events;
909 if (events->overflow) {
910 events->overflow = 0;
913 if (events->eventw == events->eventr) {
916 if (flags & O_NONBLOCK)
919 ret = wait_event_interruptible(events->wait_queue,
920 events->eventw != events->eventr);
925 spin_lock_bh(&events->lock);
927 memcpy(event, &events->events[events->eventr],
928 sizeof(struct video_event));
929 events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT;
931 spin_unlock_bh(&events->lock);
937 /******************************************************************************
938 * DVB device file operations
939 ******************************************************************************/
941 static unsigned int dvb_video_poll(struct file *file, poll_table *wait)
943 struct dvb_device *dvbdev = file->private_data;
944 struct av7110 *av7110 = dvbdev->priv;
945 unsigned int mask = 0;
947 dprintk(2, "av7110:%p, \n", av7110);
949 if ((file->f_flags & O_ACCMODE) != O_RDONLY)
950 poll_wait(file, &av7110->avout.queue, wait);
952 poll_wait(file, &av7110->video_events.wait_queue, wait);
954 if (av7110->video_events.eventw != av7110->video_events.eventr)
957 if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
958 if (av7110->playing) {
960 mask |= (POLLOUT | POLLWRNORM);
961 } else /* if not playing: may play if asked for */
962 mask |= (POLLOUT | POLLWRNORM);
968 static ssize_t dvb_video_write(struct file *file, const char __user *buf,
969 size_t count, loff_t *ppos)
971 struct dvb_device *dvbdev = file->private_data;
972 struct av7110 *av7110 = dvbdev->priv;
975 dprintk(2, "av7110:%p, \n", av7110);
977 if ((file->f_flags & O_ACCMODE) == O_RDONLY)
980 if (av7110->videostate.stream_source != VIDEO_SOURCE_MEMORY)
983 if (get_user(c, buf))
985 if (c == 0x47 && count % TS_SIZE == 0)
986 return ts_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 1);
988 return dvb_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 1);
991 static unsigned int dvb_audio_poll(struct file *file, poll_table *wait)
993 struct dvb_device *dvbdev = file->private_data;
994 struct av7110 *av7110 = dvbdev->priv;
995 unsigned int mask = 0;
997 dprintk(2, "av7110:%p, \n", av7110);
999 poll_wait(file, &av7110->aout.queue, wait);
1001 if (av7110->playing) {
1002 if (dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)
1003 mask |= (POLLOUT | POLLWRNORM);
1004 } else /* if not playing: may play if asked for */
1005 mask = (POLLOUT | POLLWRNORM);
1010 static ssize_t dvb_audio_write(struct file *file, const char __user *buf,
1011 size_t count, loff_t *ppos)
1013 struct dvb_device *dvbdev = file->private_data;
1014 struct av7110 *av7110 = dvbdev->priv;
1017 dprintk(2, "av7110:%p, \n", av7110);
1019 if (av7110->audiostate.stream_source != AUDIO_SOURCE_MEMORY) {
1020 printk(KERN_ERR "not audio source memory\n");
1024 if (get_user(c, buf))
1026 if (c == 0x47 && count % TS_SIZE == 0)
1027 return ts_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 0);
1029 return dvb_aplay(av7110, buf, count, file->f_flags & O_NONBLOCK, 0);
1032 static u8 iframe_header[] = { 0x00, 0x00, 0x01, 0xe0, 0x00, 0x00, 0x80, 0x00, 0x00 };
1034 #define MIN_IFRAME 400000
1036 static int play_iframe(struct av7110 *av7110, char __user *buf, unsigned int len, int nonblock)
1039 int progressive = 0;
1042 dprintk(2, "av7110:%p, \n", av7110);
1044 if (!(av7110->playing & RP_VIDEO)) {
1045 if (av7110_av_start_play(av7110, RP_VIDEO) < 0)
1049 /* search in buf for instances of 00 00 01 b5 1? */
1050 for (i = 0; i < len; i++) {
1052 if (get_user(c, buf + i))
1055 progressive = c & 0x08;
1059 match = (match == 1 || match == 2) ? 2 : 1;
1063 case 2: if (c == 0x01)
1066 case 3: if (c == 0xb5)
1069 case 4: if ((c & 0xf0) == 0x10)
1076 /* setting n always > 1, fixes problems when playing stillframes
1077 consisting of I- and P-Frames */
1078 n = MIN_IFRAME / len + 1;
1080 /* FIXME: nonblock? */
1081 dvb_play_kernel(av7110, iframe_header, sizeof(iframe_header), 0, 1);
1083 for (i = 0; i < n; i++)
1084 dvb_play(av7110, buf, len, 0, 1);
1086 av7110_ipack_flush(&av7110->ipack[1]);
1089 return vidcom(av7110, AV_VIDEO_CMD_FREEZE, 1);
1095 static int dvb_video_ioctl(struct file *file,
1096 unsigned int cmd, void *parg)
1098 struct dvb_device *dvbdev = file->private_data;
1099 struct av7110 *av7110 = dvbdev->priv;
1100 unsigned long arg = (unsigned long) parg;
1103 dprintk(1, "av7110:%p, cmd=%04x\n", av7110,cmd);
1105 if ((file->f_flags & O_ACCMODE) == O_RDONLY) {
1106 if ( cmd != VIDEO_GET_STATUS && cmd != VIDEO_GET_EVENT &&
1107 cmd != VIDEO_GET_SIZE ) {
1114 av7110->videostate.play_state = VIDEO_STOPPED;
1115 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY)
1116 ret = av7110_av_stop(av7110, RP_VIDEO);
1118 ret = vidcom(av7110, AV_VIDEO_CMD_STOP,
1119 av7110->videostate.video_blank ? 0 : 1);
1121 av7110->trickmode = TRICK_NONE;
1125 av7110->trickmode = TRICK_NONE;
1126 if (av7110->videostate.play_state == VIDEO_FREEZED) {
1127 av7110->videostate.play_state = VIDEO_PLAYING;
1128 ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1132 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY) {
1133 if (av7110->playing == RP_AV) {
1134 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
1137 av7110->playing &= ~RP_VIDEO;
1139 ret = av7110_av_start_play(av7110, RP_VIDEO);
1142 ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1144 av7110->videostate.play_state = VIDEO_PLAYING;
1148 av7110->videostate.play_state = VIDEO_FREEZED;
1149 if (av7110->playing & RP_VIDEO)
1150 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Pause, 0);
1152 ret = vidcom(av7110, AV_VIDEO_CMD_FREEZE, 1);
1154 av7110->trickmode = TRICK_FREEZE;
1157 case VIDEO_CONTINUE:
1158 if (av7110->playing & RP_VIDEO)
1159 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Continue, 0);
1161 ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1163 av7110->videostate.play_state = VIDEO_PLAYING;
1164 av7110->trickmode = TRICK_NONE;
1168 case VIDEO_SELECT_SOURCE:
1169 av7110->videostate.stream_source = (video_stream_source_t) arg;
1172 case VIDEO_SET_BLANK:
1173 av7110->videostate.video_blank = (int) arg;
1176 case VIDEO_GET_STATUS:
1177 memcpy(parg, &av7110->videostate, sizeof(struct video_status));
1180 case VIDEO_GET_EVENT:
1181 ret = dvb_video_get_event(av7110, parg, file->f_flags);
1184 case VIDEO_GET_SIZE:
1185 memcpy(parg, &av7110->video_size, sizeof(video_size_t));
1188 case VIDEO_SET_DISPLAY_FORMAT:
1190 video_displayformat_t format = (video_displayformat_t) arg;
1192 case VIDEO_PAN_SCAN:
1193 av7110->display_panscan = VID_PAN_SCAN_PREF;
1195 case VIDEO_LETTER_BOX:
1196 av7110->display_panscan = VID_VC_AND_PS_PREF;
1198 case VIDEO_CENTER_CUT_OUT:
1199 av7110->display_panscan = VID_CENTRE_CUT_PREF;
1206 av7110->videostate.display_format = format;
1207 ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetPanScanType,
1208 1, av7110->display_panscan);
1212 case VIDEO_SET_FORMAT:
1217 av7110->display_ar = arg;
1218 ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetMonitorType,
1222 case VIDEO_STILLPICTURE:
1224 struct video_still_picture *pic =
1225 (struct video_still_picture *) parg;
1226 av7110->videostate.stream_source = VIDEO_SOURCE_MEMORY;
1227 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1228 ret = play_iframe(av7110, pic->iFrame, pic->size,
1229 file->f_flags & O_NONBLOCK);
1233 case VIDEO_FAST_FORWARD:
1234 //note: arg is ignored by firmware
1235 if (av7110->playing & RP_VIDEO)
1236 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1237 __Scan_I, 2, AV_PES, 0);
1239 ret = vidcom(av7110, AV_VIDEO_CMD_FFWD, arg);
1241 av7110->trickmode = TRICK_FAST;
1242 av7110->videostate.play_state = VIDEO_PLAYING;
1246 case VIDEO_SLOWMOTION:
1247 if (av7110->playing&RP_VIDEO) {
1248 if (av7110->trickmode != TRICK_SLOW)
1249 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Slow, 2, 0, 0);
1251 ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1253 ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1255 ret = vidcom(av7110, AV_VIDEO_CMD_STOP, 0);
1257 ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1260 av7110->trickmode = TRICK_SLOW;
1261 av7110->videostate.play_state = VIDEO_PLAYING;
1265 case VIDEO_GET_CAPABILITIES:
1266 *(int *)parg = VIDEO_CAP_MPEG1 | VIDEO_CAP_MPEG2 |
1267 VIDEO_CAP_SYS | VIDEO_CAP_PROG;
1270 case VIDEO_CLEAR_BUFFER:
1271 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1272 av7110_ipack_reset(&av7110->ipack[1]);
1273 if (av7110->playing == RP_AV) {
1274 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1275 __Play, 2, AV_PES, 0);
1278 if (av7110->trickmode == TRICK_FAST)
1279 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1280 __Scan_I, 2, AV_PES, 0);
1281 if (av7110->trickmode == TRICK_SLOW) {
1282 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1285 ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1287 if (av7110->trickmode == TRICK_FREEZE)
1288 ret = vidcom(av7110, AV_VIDEO_CMD_STOP, 1);
1292 case VIDEO_SET_STREAMTYPE:
1303 static int dvb_audio_ioctl(struct file *file,
1304 unsigned int cmd, void *parg)
1306 struct dvb_device *dvbdev = file->private_data;
1307 struct av7110 *av7110 = dvbdev->priv;
1308 unsigned long arg = (unsigned long) parg;
1311 dprintk(1, "av7110:%p, cmd=%04x\n", av7110,cmd);
1313 if (((file->f_flags & O_ACCMODE) == O_RDONLY) &&
1314 (cmd != AUDIO_GET_STATUS))
1319 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
1320 ret = av7110_av_stop(av7110, RP_AUDIO);
1322 ret = audcom(av7110, AUDIO_CMD_MUTE);
1324 av7110->audiostate.play_state = AUDIO_STOPPED;
1328 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
1329 ret = av7110_av_start_play(av7110, RP_AUDIO);
1331 ret = audcom(av7110, AUDIO_CMD_UNMUTE);
1333 av7110->audiostate.play_state = AUDIO_PLAYING;
1337 ret = audcom(av7110, AUDIO_CMD_MUTE);
1339 av7110->audiostate.play_state = AUDIO_PAUSED;
1342 case AUDIO_CONTINUE:
1343 if (av7110->audiostate.play_state == AUDIO_PAUSED) {
1344 av7110->audiostate.play_state = AUDIO_PLAYING;
1345 ret = audcom(av7110, AUDIO_CMD_UNMUTE | AUDIO_CMD_PCM16);
1349 case AUDIO_SELECT_SOURCE:
1350 av7110->audiostate.stream_source = (audio_stream_source_t) arg;
1353 case AUDIO_SET_MUTE:
1355 ret = audcom(av7110, arg ? AUDIO_CMD_MUTE : AUDIO_CMD_UNMUTE);
1357 av7110->audiostate.mute_state = (int) arg;
1361 case AUDIO_SET_AV_SYNC:
1362 av7110->audiostate.AV_sync_state = (int) arg;
1363 ret = audcom(av7110, arg ? AUDIO_CMD_SYNC_ON : AUDIO_CMD_SYNC_OFF);
1366 case AUDIO_SET_BYPASS_MODE:
1367 if (FW_VERSION(av7110->arm_app) < 0x2621)
1369 av7110->audiostate.bypass_mode = (int)arg;
1372 case AUDIO_CHANNEL_SELECT:
1373 av7110->audiostate.channel_select = (audio_channel_select_t) arg;
1374 switch(av7110->audiostate.channel_select) {
1376 ret = audcom(av7110, AUDIO_CMD_STEREO);
1378 if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1379 i2c_writereg(av7110, 0x20, 0x02, 0x49);
1380 else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1381 msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0220);
1384 case AUDIO_MONO_LEFT:
1385 ret = audcom(av7110, AUDIO_CMD_MONO_L);
1387 if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1388 i2c_writereg(av7110, 0x20, 0x02, 0x4a);
1389 else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1390 msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0200);
1393 case AUDIO_MONO_RIGHT:
1394 ret = audcom(av7110, AUDIO_CMD_MONO_R);
1396 if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1397 i2c_writereg(av7110, 0x20, 0x02, 0x45);
1398 else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1399 msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0210);
1408 case AUDIO_GET_STATUS:
1409 memcpy(parg, &av7110->audiostate, sizeof(struct audio_status));
1412 case AUDIO_GET_CAPABILITIES:
1413 if (FW_VERSION(av7110->arm_app) < 0x2621)
1414 *(unsigned int *)parg = AUDIO_CAP_LPCM | AUDIO_CAP_MP1 | AUDIO_CAP_MP2;
1416 *(unsigned int *)parg = AUDIO_CAP_LPCM | AUDIO_CAP_DTS | AUDIO_CAP_AC3 |
1417 AUDIO_CAP_MP1 | AUDIO_CAP_MP2;
1420 case AUDIO_CLEAR_BUFFER:
1421 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1422 av7110_ipack_reset(&av7110->ipack[0]);
1423 if (av7110->playing == RP_AV)
1424 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1425 __Play, 2, AV_PES, 0);
1431 case AUDIO_SET_MIXER:
1433 struct audio_mixer *amix = (struct audio_mixer *)parg;
1434 ret = av7110_set_volume(av7110, amix->volume_left, amix->volume_right);
1438 case AUDIO_SET_STREAMTYPE:
1449 static int dvb_video_open(struct inode *inode, struct file *file)
1451 struct dvb_device *dvbdev = file->private_data;
1452 struct av7110 *av7110 = dvbdev->priv;
1455 dprintk(2, "av7110:%p, \n", av7110);
1457 if ((err = dvb_generic_open(inode, file)) < 0)
1460 if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
1461 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1462 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1463 av7110->video_blank = 1;
1464 av7110->audiostate.AV_sync_state = 1;
1465 av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX;
1467 /* empty event queue */
1468 av7110->video_events.eventr = av7110->video_events.eventw = 0;
1474 static int dvb_video_release(struct inode *inode, struct file *file)
1476 struct dvb_device *dvbdev = file->private_data;
1477 struct av7110 *av7110 = dvbdev->priv;
1479 dprintk(2, "av7110:%p, \n", av7110);
1481 if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
1482 av7110_av_stop(av7110, RP_VIDEO);
1485 return dvb_generic_release(inode, file);
1488 static int dvb_audio_open(struct inode *inode, struct file *file)
1490 struct dvb_device *dvbdev = file->private_data;
1491 struct av7110 *av7110 = dvbdev->priv;
1492 int err = dvb_generic_open(inode, file);
1494 dprintk(2, "av7110:%p, \n", av7110);
1498 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1499 av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX;
1503 static int dvb_audio_release(struct inode *inode, struct file *file)
1505 struct dvb_device *dvbdev = file->private_data;
1506 struct av7110 *av7110 = dvbdev->priv;
1508 dprintk(2, "av7110:%p, \n", av7110);
1510 av7110_av_stop(av7110, RP_AUDIO);
1511 return dvb_generic_release(inode, file);
1516 /******************************************************************************
1517 * driver registration
1518 ******************************************************************************/
1520 static const struct file_operations dvb_video_fops = {
1521 .owner = THIS_MODULE,
1522 .write = dvb_video_write,
1523 .unlocked_ioctl = dvb_generic_ioctl,
1524 .open = dvb_video_open,
1525 .release = dvb_video_release,
1526 .poll = dvb_video_poll,
1527 .llseek = noop_llseek,
1530 static struct dvb_device dvbdev_video = {
1533 .readers = 5, /* arbitrary */
1535 .fops = &dvb_video_fops,
1536 .kernel_ioctl = dvb_video_ioctl,
1539 static const struct file_operations dvb_audio_fops = {
1540 .owner = THIS_MODULE,
1541 .write = dvb_audio_write,
1542 .unlocked_ioctl = dvb_generic_ioctl,
1543 .open = dvb_audio_open,
1544 .release = dvb_audio_release,
1545 .poll = dvb_audio_poll,
1546 .llseek = noop_llseek,
1549 static struct dvb_device dvbdev_audio = {
1553 .fops = &dvb_audio_fops,
1554 .kernel_ioctl = dvb_audio_ioctl,
1558 int av7110_av_register(struct av7110 *av7110)
1560 av7110->audiostate.AV_sync_state = 0;
1561 av7110->audiostate.mute_state = 0;
1562 av7110->audiostate.play_state = AUDIO_STOPPED;
1563 av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX;
1564 av7110->audiostate.channel_select = AUDIO_STEREO;
1565 av7110->audiostate.bypass_mode = 0;
1567 av7110->videostate.video_blank = 0;
1568 av7110->videostate.play_state = VIDEO_STOPPED;
1569 av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX;
1570 av7110->videostate.video_format = VIDEO_FORMAT_4_3;
1571 av7110->videostate.display_format = VIDEO_LETTER_BOX;
1572 av7110->display_ar = VIDEO_FORMAT_4_3;
1573 av7110->display_panscan = VID_VC_AND_PS_PREF;
1575 init_waitqueue_head(&av7110->video_events.wait_queue);
1576 spin_lock_init(&av7110->video_events.lock);
1577 av7110->video_events.eventw = av7110->video_events.eventr = 0;
1578 av7110->video_events.overflow = 0;
1579 memset(&av7110->video_size, 0, sizeof (video_size_t));
1581 dvb_register_device(&av7110->dvb_adapter, &av7110->video_dev,
1582 &dvbdev_video, av7110, DVB_DEVICE_VIDEO);
1584 dvb_register_device(&av7110->dvb_adapter, &av7110->audio_dev,
1585 &dvbdev_audio, av7110, DVB_DEVICE_AUDIO);
1590 void av7110_av_unregister(struct av7110 *av7110)
1592 dvb_unregister_device(av7110->audio_dev);
1593 dvb_unregister_device(av7110->video_dev);
1596 int av7110_av_init(struct av7110 *av7110)
1598 void (*play[])(u8 *, int, void *) = { play_audio_cb, play_video_cb };
1601 for (i = 0; i < 2; i++) {
1602 struct ipack *ipack = av7110->ipack + i;
1604 ret = av7110_ipack_init(ipack, IPACKS, play[i]);
1607 av7110_ipack_free(--ipack);
1610 ipack->data = av7110;
1613 dvb_ringbuffer_init(&av7110->avout, av7110->iobuf, AVOUTLEN);
1614 dvb_ringbuffer_init(&av7110->aout, av7110->iobuf + AVOUTLEN, AOUTLEN);
1616 av7110->kbuf[0] = (u8 *)(av7110->iobuf + AVOUTLEN + AOUTLEN + BMPLEN);
1617 av7110->kbuf[1] = av7110->kbuf[0] + 2 * IPACKS;
1622 void av7110_av_exit(struct av7110 *av7110)
1624 av7110_ipack_free(&av7110->ipack[0]);
1625 av7110_ipack_free(&av7110->ipack[1]);