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, NULL, 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, NULL, 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);
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 __user *buf,
428 unsigned long count, int nonblock, int type)
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,
450 if (copy_from_user(av7110->kbuf[type], buf, n))
452 av7110_ipack_instant_repack(av7110->kbuf[type], n,
453 &av7110->ipack[type]);
460 static ssize_t dvb_play_kernel(struct av7110 *av7110, const u8 *buf,
461 unsigned long count, int nonblock, int type)
463 unsigned long todo = count, n;
464 DEB_EE(("av7110: %p\n", av7110));
466 if (!av7110->kbuf[type])
469 if (nonblock && !FREE_COND)
476 if (wait_event_interruptible(av7110->avout.queue,
483 av7110_ipack_instant_repack(buf, n, &av7110->ipack[type]);
490 static ssize_t dvb_aplay(struct av7110 *av7110, const u8 __user *buf,
491 unsigned long count, int nonblock, int type)
493 unsigned long todo = count, n;
494 DEB_EE(("av7110: %p\n", av7110));
496 if (!av7110->kbuf[type])
498 if (nonblock && dvb_ringbuffer_free(&av7110->aout) < 20 * 1024)
502 if (dvb_ringbuffer_free(&av7110->aout) < 20 * 1024) {
505 if (wait_event_interruptible(av7110->aout.queue,
506 (dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)))
512 if (copy_from_user(av7110->kbuf[type], buf, n))
514 av7110_ipack_instant_repack(av7110->kbuf[type], n,
515 &av7110->ipack[type]);
522 void av7110_p2t_init(struct av7110_p2t *p, struct dvb_demux_feed *feed)
524 memset(p->pes, 0, TS_SIZE);
532 static void clear_p2t(struct av7110_p2t *p)
534 memset(p->pes, 0, TS_SIZE);
541 static int find_pes_header(u8 const *buf, long int length, int *frags)
548 while (c < length - 3 && !found) {
549 if (buf[c] == 0x00 && buf[c + 1] == 0x00 &&
550 buf[c + 2] == 0x01) {
551 switch ( buf[c + 3] ) {
552 case PROG_STREAM_MAP:
553 case PRIVATE_STREAM2:
554 case PROG_STREAM_DIR:
557 case PADDING_STREAM :
559 case ISO13522_STREAM:
560 case PRIVATE_STREAM1:
561 case AUDIO_STREAM_S ... AUDIO_STREAM_E:
562 case VIDEO_STREAM_S ... VIDEO_STREAM_E:
573 if (c == length - 3 && !found) {
574 if (buf[length - 1] == 0x00)
576 if (buf[length - 2] == 0x00 &&
577 buf[length - 1] == 0x00)
579 if (buf[length - 3] == 0x00 &&
580 buf[length - 2] == 0x00 &&
581 buf[length - 1] == 0x01)
589 void av7110_p2t_write(u8 const *buf, long int length, u16 pid, struct av7110_p2t *p)
600 if (buf[c] == 0x00 && buf[c + 1] == 0x01) {
606 if (buf[c] == 0x01) {
616 case PROG_STREAM_MAP:
617 case PRIVATE_STREAM2:
618 case PROG_STREAM_DIR:
621 case PADDING_STREAM :
623 case ISO13522_STREAM:
624 case PRIVATE_STREAM1:
625 case AUDIO_STREAM_S ... AUDIO_STREAM_E:
626 case VIDEO_STREAM_S ... VIDEO_STREAM_E:
632 memcpy(p->pes + p->pos, buf + c, (TS_SIZE - 4) - p->pos);
633 c += (TS_SIZE - 4) - p->pos;
634 p_to_t(p->pes, (TS_SIZE - 4), pid, &p->counter, p->feed);
647 c2 = find_pes_header(buf + c, length - c, &p->frags);
648 if (c2 >= 0 && c2 < (TS_SIZE - 4) - p->pos)
651 l = (TS_SIZE - 4) - p->pos;
652 memcpy(p->pes + p->pos, buf, l);
655 p_to_t(p->pes, p->pos, pid, &p->counter, p->feed);
661 c2 = find_pes_header(buf + c + add, length - c - add, &p->frags);
665 p_to_t(buf + c, c2 - c, pid, &p->counter, p->feed);
673 rest = l % (TS_SIZE - 4);
675 p_to_t(buf + c, l, pid, &p->counter, p->feed);
676 memcpy(p->pes, buf + c + l, rest);
684 int write_ts_header2(u16 pid, u8 *counter, int pes_start, u8 *buf, u8 length)
689 u8 tshead[4] = { 0x47, 0x00, 0x00, 0x10 };
691 fill = (TS_SIZE - 4) - length;
696 tshead[1] |= (u8)((pid & 0x1F00) >> 8);
697 tshead[2] |= (u8)(pid & 0x00FF);
698 tshead[3] |= ((*counter)++ & 0x0F);
699 memcpy(buf, tshead, 4);
709 for (i = 6; i < fill + 4; i++) {
719 static void p_to_t(u8 const *buf, long int length, u16 pid, u8 *counter,
720 struct dvb_demux_feed *feed)
728 buf[0] == 0x00 && buf[1] == 0x00 && buf[2] == 0x01)
730 case PROG_STREAM_MAP:
731 case PRIVATE_STREAM2:
732 case PROG_STREAM_DIR:
735 case PADDING_STREAM :
737 case ISO13522_STREAM:
738 case PRIVATE_STREAM1:
739 case AUDIO_STREAM_S ... AUDIO_STREAM_E:
740 case VIDEO_STREAM_S ... VIDEO_STREAM_E:
749 memset(obuf, 0, TS_SIZE);
750 if (length - c >= (TS_SIZE - 4)){
751 l = write_ts_header2(pid, counter, pes_start,
752 obuf, (TS_SIZE - 4));
753 memcpy(obuf + l, buf + c, TS_SIZE - l);
756 l = write_ts_header2(pid, counter, pes_start,
758 memcpy(obuf + l, buf + c, TS_SIZE - l);
761 feed->cb.ts(obuf, 188, NULL, 0, &feed->feed.ts, DMX_OK);
767 int av7110_write_to_decoder(struct dvb_demux_feed *feed, const u8 *buf, size_t len)
769 struct dvb_demux *demux = feed->demux;
770 struct av7110 *av7110 = (struct av7110 *) demux->priv;
771 struct ipack *ipack = &av7110->ipack[feed->pes_type];
773 DEB_EE(("av7110: %p\n", av7110));
775 switch (feed->pes_type) {
777 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
781 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY)
788 if (!(buf[3] & 0x10)) /* no payload? */
791 av7110_ipack_flush(ipack);
793 if (buf[3] & 0x20) { /* adaptation field? */
800 av7110_ipack_instant_repack(buf + 4, len - 4, &av7110->ipack[feed->pes_type]);
806 /******************************************************************************
807 * Video MPEG decoder events
808 ******************************************************************************/
809 void dvb_video_add_event(struct av7110 *av7110, struct video_event *event)
811 struct dvb_video_events *events = &av7110->video_events;
816 spin_lock_bh(&events->lock);
818 wp = (events->eventw + 1) % MAX_VIDEO_EVENT;
819 if (wp == events->eventr) {
820 events->overflow = 1;
821 events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT;
825 memcpy(&events->events[events->eventw], event, sizeof(struct video_event));
828 spin_unlock_bh(&events->lock);
830 wake_up_interruptible(&events->wait_queue);
834 static int dvb_video_get_event (struct av7110 *av7110, struct video_event *event, int flags)
836 struct dvb_video_events *events = &av7110->video_events;
840 if (events->overflow) {
841 events->overflow = 0;
844 if (events->eventw == events->eventr) {
847 if (flags & O_NONBLOCK)
850 ret = wait_event_interruptible(events->wait_queue,
851 events->eventw != events->eventr);
856 spin_lock_bh(&events->lock);
858 memcpy(event, &events->events[events->eventr],
859 sizeof(struct video_event));
860 events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT;
862 spin_unlock_bh(&events->lock);
868 /******************************************************************************
869 * DVB device file operations
870 ******************************************************************************/
872 static unsigned int dvb_video_poll(struct file *file, poll_table *wait)
874 struct dvb_device *dvbdev = (struct dvb_device *) file->private_data;
875 struct av7110 *av7110 = (struct av7110 *) dvbdev->priv;
876 unsigned int mask = 0;
878 DEB_EE(("av7110: %p\n", av7110));
880 if ((file->f_flags & O_ACCMODE) != O_RDONLY)
881 poll_wait(file, &av7110->avout.queue, wait);
883 poll_wait(file, &av7110->video_events.wait_queue, wait);
885 if (av7110->video_events.eventw != av7110->video_events.eventr)
888 if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
889 if (av7110->playing) {
891 mask |= (POLLOUT | POLLWRNORM);
892 } else /* if not playing: may play if asked for */
893 mask |= (POLLOUT | POLLWRNORM);
899 static ssize_t dvb_video_write(struct file *file, const char __user *buf,
900 size_t count, loff_t *ppos)
902 struct dvb_device *dvbdev = (struct dvb_device *) file->private_data;
903 struct av7110 *av7110 = (struct av7110 *) dvbdev->priv;
905 DEB_EE(("av7110: %p\n", av7110));
907 if ((file->f_flags & O_ACCMODE) == O_RDONLY)
910 if (av7110->videostate.stream_source != VIDEO_SOURCE_MEMORY)
913 return dvb_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 1);
916 static unsigned int dvb_audio_poll(struct file *file, poll_table *wait)
918 struct dvb_device *dvbdev = (struct dvb_device *) file->private_data;
919 struct av7110 *av7110 = (struct av7110 *) dvbdev->priv;
920 unsigned int mask = 0;
922 DEB_EE(("av7110: %p\n", av7110));
924 poll_wait(file, &av7110->aout.queue, wait);
926 if (av7110->playing) {
927 if (dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)
928 mask |= (POLLOUT | POLLWRNORM);
929 } else /* if not playing: may play if asked for */
930 mask = (POLLOUT | POLLWRNORM);
935 static ssize_t dvb_audio_write(struct file *file, const char __user *buf,
936 size_t count, loff_t *ppos)
938 struct dvb_device *dvbdev = (struct dvb_device *) file->private_data;
939 struct av7110 *av7110 = (struct av7110 *) dvbdev->priv;
941 DEB_EE(("av7110: %p\n", av7110));
943 if (av7110->audiostate.stream_source != AUDIO_SOURCE_MEMORY) {
944 printk(KERN_ERR "not audio source memory\n");
947 return dvb_aplay(av7110, buf, count, file->f_flags & O_NONBLOCK, 0);
950 u8 iframe_header[] = { 0x00, 0x00, 0x01, 0xe0, 0x00, 0x00, 0x80, 0x00, 0x00 };
952 #define MIN_IFRAME 400000
954 static int play_iframe(struct av7110 *av7110, u8 __user *buf, unsigned int len, int nonblock)
958 DEB_EE(("av7110: %p\n", av7110));
960 if (!(av7110->playing & RP_VIDEO)) {
961 if (av7110_av_start_play(av7110, RP_VIDEO) < 0)
965 /* setting n always > 1, fixes problems when playing stillframes
966 consisting of I- and P-Frames */
967 n = MIN_IFRAME / len + 1;
969 /* FIXME: nonblock? */
970 dvb_play_kernel(av7110, iframe_header, sizeof(iframe_header), 0, 1);
972 for (i = 0; i < n; i++)
973 dvb_play(av7110, buf, len, 0, 1);
975 av7110_ipack_flush(&av7110->ipack[1]);
980 static int dvb_video_ioctl(struct inode *inode, struct file *file,
981 unsigned int cmd, void *parg)
983 struct dvb_device *dvbdev = (struct dvb_device *) file->private_data;
984 struct av7110 *av7110 = (struct av7110 *) dvbdev->priv;
985 unsigned long arg = (unsigned long) parg;
988 DEB_EE(("av7110: %p\n", av7110));
990 if ((file->f_flags & O_ACCMODE) == O_RDONLY) {
991 if ( cmd != VIDEO_GET_STATUS && cmd != VIDEO_GET_EVENT &&
992 cmd != VIDEO_GET_SIZE ) {
999 av7110->videostate.play_state = VIDEO_STOPPED;
1000 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY)
1001 av7110_av_stop(av7110, RP_VIDEO);
1003 vidcom(av7110, VIDEO_CMD_STOP,
1004 av7110->videostate.video_blank ? 0 : 1);
1005 av7110->trickmode = TRICK_NONE;
1009 av7110->trickmode = TRICK_NONE;
1010 if (av7110->videostate.play_state == VIDEO_FREEZED) {
1011 av7110->videostate.play_state = VIDEO_PLAYING;
1012 vidcom(av7110, VIDEO_CMD_PLAY, 0);
1015 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY) {
1016 if (av7110->playing == RP_AV) {
1017 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
1018 av7110->playing &= ~RP_VIDEO;
1020 av7110_av_start_play(av7110, RP_VIDEO);
1021 vidcom(av7110, VIDEO_CMD_PLAY, 0);
1023 //av7110_av_stop(av7110, RP_VIDEO);
1024 vidcom(av7110, VIDEO_CMD_PLAY, 0);
1026 av7110->videostate.play_state = VIDEO_PLAYING;
1030 av7110->videostate.play_state = VIDEO_FREEZED;
1031 if (av7110->playing & RP_VIDEO)
1032 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Pause, 0);
1034 vidcom(av7110, VIDEO_CMD_FREEZE, 1);
1035 av7110->trickmode = TRICK_FREEZE;
1038 case VIDEO_CONTINUE:
1039 if (av7110->playing & RP_VIDEO)
1040 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Continue, 0);
1041 vidcom(av7110, VIDEO_CMD_PLAY, 0);
1042 av7110->videostate.play_state = VIDEO_PLAYING;
1043 av7110->trickmode = TRICK_NONE;
1046 case VIDEO_SELECT_SOURCE:
1047 av7110->videostate.stream_source = (video_stream_source_t) arg;
1050 case VIDEO_SET_BLANK:
1051 av7110->videostate.video_blank = (int) arg;
1054 case VIDEO_GET_STATUS:
1055 memcpy(parg, &av7110->videostate, sizeof(struct video_status));
1058 case VIDEO_GET_EVENT:
1059 ret=dvb_video_get_event(av7110, parg, file->f_flags);
1062 case VIDEO_GET_SIZE:
1063 memcpy(parg, &av7110->video_size, sizeof(video_size_t));
1066 case VIDEO_SET_DISPLAY_FORMAT:
1068 video_displayformat_t format = (video_displayformat_t) arg;
1072 case VIDEO_PAN_SCAN:
1073 val = VID_PAN_SCAN_PREF;
1076 case VIDEO_LETTER_BOX:
1077 val = VID_VC_AND_PS_PREF;
1080 case VIDEO_CENTER_CUT_OUT:
1081 val = VID_CENTRE_CUT_PREF;
1089 av7110->videostate.video_format = format;
1090 ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetPanScanType,
1095 case VIDEO_SET_FORMAT:
1100 av7110->display_ar = arg;
1101 ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetMonitorType,
1105 case VIDEO_STILLPICTURE:
1107 struct video_still_picture *pic =
1108 (struct video_still_picture *) parg;
1109 av7110->videostate.stream_source = VIDEO_SOURCE_MEMORY;
1110 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1111 ret = play_iframe(av7110, pic->iFrame, pic->size,
1112 file->f_flags & O_NONBLOCK);
1116 case VIDEO_FAST_FORWARD:
1117 //note: arg is ignored by firmware
1118 if (av7110->playing & RP_VIDEO)
1119 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1120 __Scan_I, 2, AV_PES, 0);
1122 vidcom(av7110, VIDEO_CMD_FFWD, arg);
1123 av7110->trickmode = TRICK_FAST;
1124 av7110->videostate.play_state = VIDEO_PLAYING;
1127 case VIDEO_SLOWMOTION:
1128 if (av7110->playing&RP_VIDEO) {
1129 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Slow, 2, 0, 0);
1130 vidcom(av7110, VIDEO_CMD_SLOW, arg);
1132 vidcom(av7110, VIDEO_CMD_PLAY, 0);
1133 vidcom(av7110, VIDEO_CMD_STOP, 0);
1134 vidcom(av7110, VIDEO_CMD_SLOW, arg);
1136 av7110->trickmode = TRICK_SLOW;
1137 av7110->videostate.play_state = VIDEO_PLAYING;
1140 case VIDEO_GET_CAPABILITIES:
1141 *(int *)parg = VIDEO_CAP_MPEG1 | VIDEO_CAP_MPEG2 |
1142 VIDEO_CAP_SYS | VIDEO_CAP_PROG;
1145 case VIDEO_CLEAR_BUFFER:
1146 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1147 av7110_ipack_reset(&av7110->ipack[1]);
1149 if (av7110->playing == RP_AV) {
1150 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1151 __Play, 2, AV_PES, 0);
1152 if (av7110->trickmode == TRICK_FAST)
1153 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1154 __Scan_I, 2, AV_PES, 0);
1155 if (av7110->trickmode == TRICK_SLOW) {
1156 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1158 vidcom(av7110, VIDEO_CMD_SLOW, arg);
1160 if (av7110->trickmode == TRICK_FREEZE)
1161 vidcom(av7110, VIDEO_CMD_STOP, 1);
1165 case VIDEO_SET_STREAMTYPE:
1176 static int dvb_audio_ioctl(struct inode *inode, struct file *file,
1177 unsigned int cmd, void *parg)
1179 struct dvb_device *dvbdev = (struct dvb_device *) file->private_data;
1180 struct av7110 *av7110 = (struct av7110 *) dvbdev->priv;
1181 unsigned long arg = (unsigned long) parg;
1184 DEB_EE(("av7110: %p\n", av7110));
1186 if (((file->f_flags & O_ACCMODE) == O_RDONLY) &&
1187 (cmd != AUDIO_GET_STATUS))
1192 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
1193 av7110_av_stop(av7110, RP_AUDIO);
1195 audcom(av7110, AUDIO_CMD_MUTE);
1196 av7110->audiostate.play_state = AUDIO_STOPPED;
1200 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
1201 av7110_av_start_play(av7110, RP_AUDIO);
1202 audcom(av7110, AUDIO_CMD_UNMUTE);
1203 av7110->audiostate.play_state = AUDIO_PLAYING;
1207 audcom(av7110, AUDIO_CMD_MUTE);
1208 av7110->audiostate.play_state = AUDIO_PAUSED;
1211 case AUDIO_CONTINUE:
1212 if (av7110->audiostate.play_state == AUDIO_PAUSED) {
1213 av7110->audiostate.play_state = AUDIO_PLAYING;
1214 audcom(av7110, AUDIO_CMD_MUTE | AUDIO_CMD_PCM16);
1218 case AUDIO_SELECT_SOURCE:
1219 av7110->audiostate.stream_source = (audio_stream_source_t) arg;
1222 case AUDIO_SET_MUTE:
1224 audcom(av7110, arg ? AUDIO_CMD_MUTE : AUDIO_CMD_UNMUTE);
1225 av7110->audiostate.mute_state = (int) arg;
1229 case AUDIO_SET_AV_SYNC:
1230 av7110->audiostate.AV_sync_state = (int) arg;
1231 audcom(av7110, arg ? AUDIO_CMD_SYNC_ON : AUDIO_CMD_SYNC_OFF);
1234 case AUDIO_SET_BYPASS_MODE:
1238 case AUDIO_CHANNEL_SELECT:
1239 av7110->audiostate.channel_select = (audio_channel_select_t) arg;
1241 switch(av7110->audiostate.channel_select) {
1243 audcom(av7110, AUDIO_CMD_STEREO);
1246 case AUDIO_MONO_LEFT:
1247 audcom(av7110, AUDIO_CMD_MONO_L);
1250 case AUDIO_MONO_RIGHT:
1251 audcom(av7110, AUDIO_CMD_MONO_R);
1260 case AUDIO_GET_STATUS:
1261 memcpy(parg, &av7110->audiostate, sizeof(struct audio_status));
1264 case AUDIO_GET_CAPABILITIES:
1265 *(int *)parg = AUDIO_CAP_LPCM | AUDIO_CAP_MP1 | AUDIO_CAP_MP2;
1268 case AUDIO_CLEAR_BUFFER:
1269 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1270 av7110_ipack_reset(&av7110->ipack[0]);
1271 if (av7110->playing == RP_AV)
1272 av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1273 __Play, 2, AV_PES, 0);
1278 case AUDIO_SET_MIXER:
1280 struct audio_mixer *amix = (struct audio_mixer *)parg;
1282 av7110_set_volume(av7110, amix->volume_left, amix->volume_right);
1285 case AUDIO_SET_STREAMTYPE:
1294 static int dvb_video_open(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;
1300 DEB_EE(("av7110: %p\n", av7110));
1302 if ((err = dvb_generic_open(inode, file)) < 0)
1305 if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
1306 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1307 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1308 av7110->video_blank = 1;
1309 av7110->audiostate.AV_sync_state = 1;
1310 av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX;
1312 /* empty event queue */
1313 av7110->video_events.eventr = av7110->video_events.eventw = 0;
1319 static int dvb_video_release(struct inode *inode, struct file *file)
1321 struct dvb_device *dvbdev = (struct dvb_device *) file->private_data;
1322 struct av7110 *av7110 = (struct av7110 *) dvbdev->priv;
1324 DEB_EE(("av7110: %p\n", av7110));
1326 if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
1327 av7110_av_stop(av7110, RP_VIDEO);
1330 return dvb_generic_release(inode, file);
1333 static int dvb_audio_open(struct inode *inode, struct file *file)
1335 struct dvb_device *dvbdev = (struct dvb_device *) file->private_data;
1336 struct av7110 *av7110 = (struct av7110 *) dvbdev->priv;
1337 int err=dvb_generic_open(inode, file);
1339 DEB_EE(("av7110: %p\n", av7110));
1343 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1344 av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX;
1348 static int dvb_audio_release(struct inode *inode, struct file *file)
1350 struct dvb_device *dvbdev = (struct dvb_device *) file->private_data;
1351 struct av7110 *av7110 = (struct av7110 *) dvbdev->priv;
1353 DEB_EE(("av7110: %p\n", av7110));
1355 av7110_av_stop(av7110, RP_AUDIO);
1356 return dvb_generic_release(inode, file);
1361 /******************************************************************************
1362 * driver registration
1363 ******************************************************************************/
1365 static struct file_operations dvb_video_fops = {
1366 .owner = THIS_MODULE,
1367 .write = dvb_video_write,
1368 .ioctl = dvb_generic_ioctl,
1369 .open = dvb_video_open,
1370 .release = dvb_video_release,
1371 .poll = dvb_video_poll,
1374 static struct dvb_device dvbdev_video = {
1377 .readers = 5, /* arbitrary */
1379 .fops = &dvb_video_fops,
1380 .kernel_ioctl = dvb_video_ioctl,
1383 static struct file_operations dvb_audio_fops = {
1384 .owner = THIS_MODULE,
1385 .write = dvb_audio_write,
1386 .ioctl = dvb_generic_ioctl,
1387 .open = dvb_audio_open,
1388 .release = dvb_audio_release,
1389 .poll = dvb_audio_poll,
1392 static struct dvb_device dvbdev_audio = {
1396 .fops = &dvb_audio_fops,
1397 .kernel_ioctl = dvb_audio_ioctl,
1401 int av7110_av_register(struct av7110 *av7110)
1403 av7110->audiostate.AV_sync_state = 0;
1404 av7110->audiostate.mute_state = 0;
1405 av7110->audiostate.play_state = AUDIO_STOPPED;
1406 av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX;
1407 av7110->audiostate.channel_select = AUDIO_STEREO;
1408 av7110->audiostate.bypass_mode = 0;
1410 av7110->videostate.video_blank = 0;
1411 av7110->videostate.play_state = VIDEO_STOPPED;
1412 av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX;
1413 av7110->videostate.video_format = VIDEO_FORMAT_4_3;
1414 av7110->videostate.display_format = VIDEO_CENTER_CUT_OUT;
1415 av7110->display_ar = VIDEO_FORMAT_4_3;
1417 init_waitqueue_head(&av7110->video_events.wait_queue);
1418 spin_lock_init(&av7110->video_events.lock);
1419 av7110->video_events.eventw = av7110->video_events.eventr = 0;
1420 av7110->video_events.overflow = 0;
1421 memset(&av7110->video_size, 0, sizeof (video_size_t));
1423 dvb_register_device(av7110->dvb_adapter, &av7110->video_dev,
1424 &dvbdev_video, av7110, DVB_DEVICE_VIDEO);
1426 dvb_register_device(av7110->dvb_adapter, &av7110->audio_dev,
1427 &dvbdev_audio, av7110, DVB_DEVICE_AUDIO);
1432 void av7110_av_unregister(struct av7110 *av7110)
1434 dvb_unregister_device(av7110->audio_dev);
1435 dvb_unregister_device(av7110->video_dev);
1438 int av7110_av_init(struct av7110 *av7110)
1440 av7110->vidmode = VIDEO_MODE_PAL;
1442 av7110_ipack_init(&av7110->ipack[0], IPACKS, play_audio_cb);
1443 av7110->ipack[0].data = (void *) av7110;
1444 av7110_ipack_init(&av7110->ipack[1], IPACKS, play_video_cb);
1445 av7110->ipack[1].data = (void *) av7110;
1447 dvb_ringbuffer_init(&av7110->avout, av7110->iobuf, AVOUTLEN);
1448 dvb_ringbuffer_init(&av7110->aout, av7110->iobuf + AVOUTLEN, AOUTLEN);
1450 av7110->kbuf[0] = (u8 *)(av7110->iobuf + AVOUTLEN + AOUTLEN + BMPLEN);
1451 av7110->kbuf[1] = av7110->kbuf[0] + 2 * IPACKS;
1456 int av7110_av_exit(struct av7110 *av7110)
1458 av7110_ipack_free(&av7110->ipack[0]);
1459 av7110_ipack_free(&av7110->ipack[1]);