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linux/drivers/media/dvb/ttpci/av7110_av.c
Oliver Endriss 9e615eac82 V4L/DVB (8889): dvb-ttpci: Support full-ts hardware modification 
Add support for the 'full-ts' hardware modification.

On full-featured cards the data throughput is limited by the hardware
design. The full-ts mod removes this bottleneck, i.e. the card is able
to deliver the complete transport stream of a transponder.

For details see http://www.escape-edv.de/endriss/dvb-full-ts-mod

Signed-off-by: Oliver Endriss <o.endriss@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-10-12 09:36:56 -02:00

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/*
* av7110_av.c: audio and video MPEG decoder stuff
*
* Copyright (C) 1999-2002 Ralph Metzler
* & Marcus Metzler for convergence integrated media GmbH
*
* originally based on code by:
* Copyright (C) 1998,1999 Christian Theiss <mistert@rz.fh-augsburg.de>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
* Or, point your browser to http://www.gnu.org/copyleft/gpl.html
*
*
* the project's page is at http://www.linuxtv.org/dvb/
*/
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/delay.h>
#include <linux/fs.h>
#include "av7110.h"
#include "av7110_hw.h"
#include "av7110_av.h"
#include "av7110_ipack.h"
/* MPEG-2 (ISO 13818 / H.222.0) stream types */
#define PROG_STREAM_MAP 0xBC
#define PRIVATE_STREAM1 0xBD
#define PADDING_STREAM 0xBE
#define PRIVATE_STREAM2 0xBF
#define AUDIO_STREAM_S 0xC0
#define AUDIO_STREAM_E 0xDF
#define VIDEO_STREAM_S 0xE0
#define VIDEO_STREAM_E 0xEF
#define ECM_STREAM 0xF0
#define EMM_STREAM 0xF1
#define DSM_CC_STREAM 0xF2
#define ISO13522_STREAM 0xF3
#define PROG_STREAM_DIR 0xFF
#define PTS_DTS_FLAGS 0xC0
//pts_dts flags
#define PTS_ONLY 0x80
#define PTS_DTS 0xC0
#define TS_SIZE 188
#define TRANS_ERROR 0x80
#define PAY_START 0x40
#define TRANS_PRIO 0x20
#define PID_MASK_HI 0x1F
//flags
#define TRANS_SCRMBL1 0x80
#define TRANS_SCRMBL2 0x40
#define ADAPT_FIELD 0x20
#define PAYLOAD 0x10
#define COUNT_MASK 0x0F
// adaptation flags
#define DISCON_IND 0x80
#define RAND_ACC_IND 0x40
#define ES_PRI_IND 0x20
#define PCR_FLAG 0x10
#define OPCR_FLAG 0x08
#define SPLICE_FLAG 0x04
#define TRANS_PRIV 0x02
#define ADAP_EXT_FLAG 0x01
// adaptation extension flags
#define LTW_FLAG 0x80
#define PIECE_RATE 0x40
#define SEAM_SPLICE 0x20
static void p_to_t(u8 const *buf, long int length, u16 pid,
u8 *counter, struct dvb_demux_feed *feed);
int av7110_record_cb(struct dvb_filter_pes2ts *p2t, u8 *buf, size_t len)
{
struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *) p2t->priv;
if (!(dvbdmxfeed->ts_type & TS_PACKET))
return 0;
if (buf[3] == 0xe0) // video PES do not have a length in TS
buf[4] = buf[5] = 0;
if (dvbdmxfeed->ts_type & TS_PAYLOAD_ONLY)
return dvbdmxfeed->cb.ts(buf, len, NULL, 0,
&dvbdmxfeed->feed.ts, DMX_OK);
else
return dvb_filter_pes2ts(p2t, buf, len, 1);
}
static int dvb_filter_pes2ts_cb(void *priv, unsigned char *data)
{
struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *) priv;
dvbdmxfeed->cb.ts(data, 188, NULL, 0,
&dvbdmxfeed->feed.ts, DMX_OK);
return 0;
}
int av7110_av_start_record(struct av7110 *av7110, int av,
struct dvb_demux_feed *dvbdmxfeed)
{
int ret = 0;
struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
dprintk(2, "av7110:%p, , dvb_demux_feed:%p\n", av7110, dvbdmxfeed);
if (av7110->playing || (av7110->rec_mode & av))
return -EBUSY;
av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
dvbdmx->recording = 1;
av7110->rec_mode |= av;
switch (av7110->rec_mode) {
case RP_AUDIO:
dvb_filter_pes2ts_init(&av7110->p2t[0],
dvbdmx->pesfilter[0]->pid,
dvb_filter_pes2ts_cb,
(void *) dvbdmx->pesfilter[0]);
ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AudioPES, 0);
break;
case RP_VIDEO:
dvb_filter_pes2ts_init(&av7110->p2t[1],
dvbdmx->pesfilter[1]->pid,
dvb_filter_pes2ts_cb,
(void *) dvbdmx->pesfilter[1]);
ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, VideoPES, 0);
break;
case RP_AV:
dvb_filter_pes2ts_init(&av7110->p2t[0],
dvbdmx->pesfilter[0]->pid,
dvb_filter_pes2ts_cb,
(void *) dvbdmx->pesfilter[0]);
dvb_filter_pes2ts_init(&av7110->p2t[1],
dvbdmx->pesfilter[1]->pid,
dvb_filter_pes2ts_cb,
(void *) dvbdmx->pesfilter[1]);
ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AV_PES, 0);
break;
}
return ret;
}
int av7110_av_start_play(struct av7110 *av7110, int av)
{
int ret = 0;
dprintk(2, "av7110:%p, \n", av7110);
if (av7110->rec_mode)
return -EBUSY;
if (av7110->playing & av)
return -EBUSY;
av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
if (av7110->playing == RP_NONE) {
av7110_ipack_reset(&av7110->ipack[0]);
av7110_ipack_reset(&av7110->ipack[1]);
}
av7110->playing |= av;
switch (av7110->playing) {
case RP_AUDIO:
ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AudioPES, 0);
break;
case RP_VIDEO:
ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, VideoPES, 0);
av7110->sinfo = 0;
break;
case RP_AV:
av7110->sinfo = 0;
ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AV_PES, 0);
break;
}
if (!ret)
ret = av7110->playing;
return ret;
}
int av7110_av_stop(struct av7110 *av7110, int av)
{
int ret = 0;
dprintk(2, "av7110:%p, \n", av7110);
if (!(av7110->playing & av) && !(av7110->rec_mode & av))
return 0;
av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
if (av7110->playing) {
av7110->playing &= ~av;
switch (av7110->playing) {
case RP_AUDIO:
ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AudioPES, 0);
break;
case RP_VIDEO:
ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, VideoPES, 0);
break;
case RP_NONE:
ret = av7110_set_vidmode(av7110, av7110->vidmode);
break;
}
} else {
av7110->rec_mode &= ~av;
switch (av7110->rec_mode) {
case RP_AUDIO:
ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AudioPES, 0);
break;
case RP_VIDEO:
ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, VideoPES, 0);
break;
case RP_NONE:
break;
}
}
return ret;
}
int av7110_pes_play(void *dest, struct dvb_ringbuffer *buf, int dlen)
{
int len;
u32 sync;
u16 blen;
if (!dlen) {
wake_up(&buf->queue);
return -1;
}
while (1) {
if ((len = dvb_ringbuffer_avail(buf)) < 6)
return -1;
sync = DVB_RINGBUFFER_PEEK(buf, 0) << 24;
sync |= DVB_RINGBUFFER_PEEK(buf, 1) << 16;
sync |= DVB_RINGBUFFER_PEEK(buf, 2) << 8;
sync |= DVB_RINGBUFFER_PEEK(buf, 3);
if (((sync &~ 0x0f) == 0x000001e0) ||
((sync &~ 0x1f) == 0x000001c0) ||
(sync == 0x000001bd))
break;
printk("resync\n");
DVB_RINGBUFFER_SKIP(buf, 1);
}
blen = DVB_RINGBUFFER_PEEK(buf, 4) << 8;
blen |= DVB_RINGBUFFER_PEEK(buf, 5);
blen += 6;
if (len < blen || blen > dlen) {
//printk("buffer empty - avail %d blen %u dlen %d\n", len, blen, dlen);
wake_up(&buf->queue);
return -1;
}
dvb_ringbuffer_read(buf, dest, (size_t) blen);
dprintk(2, "pread=0x%08lx, pwrite=0x%08lx\n",
(unsigned long) buf->pread, (unsigned long) buf->pwrite);
wake_up(&buf->queue);
return blen;
}
int av7110_set_volume(struct av7110 *av7110, int volleft, int volright)
{
int err, vol, val, balance = 0;
dprintk(2, "av7110:%p, \n", av7110);
av7110->mixer.volume_left = volleft;
av7110->mixer.volume_right = volright;
switch (av7110->adac_type) {
case DVB_ADAC_TI:
volleft = (volleft * 256) / 1036;
volright = (volright * 256) / 1036;
if (volleft > 0x3f)
volleft = 0x3f;
if (volright > 0x3f)
volright = 0x3f;
if ((err = SendDAC(av7110, 3, 0x80 + volleft)))
return err;
return SendDAC(av7110, 4, volright);
case DVB_ADAC_CRYSTAL:
volleft = 127 - volleft / 2;
volright = 127 - volright / 2;
i2c_writereg(av7110, 0x20, 0x03, volleft);
i2c_writereg(av7110, 0x20, 0x04, volright);
return 0;
case DVB_ADAC_MSP34x0:
vol = (volleft > volright) ? volleft : volright;
val = (vol * 0x73 / 255) << 8;
if (vol > 0)
balance = ((volright - volleft) * 127) / vol;
msp_writereg(av7110, MSP_WR_DSP, 0x0001, balance << 8);
msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */
msp_writereg(av7110, MSP_WR_DSP, 0x0006, val); /* headphonesr */
return 0;
case DVB_ADAC_MSP34x5:
vol = (volleft > volright) ? volleft : volright;
val = (vol * 0x73 / 255) << 8;
if (vol > 0)
balance = ((volright - volleft) * 127) / vol;
msp_writereg(av7110, MSP_WR_DSP, 0x0001, balance << 8);
msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */
return 0;
}
return 0;
}
int av7110_set_vidmode(struct av7110 *av7110, enum av7110_video_mode mode)
{
int ret;
dprintk(2, "av7110:%p, \n", av7110);
ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, LoadVidCode, 1, mode);
if (!ret && !av7110->playing) {
ret = ChangePIDs(av7110, av7110->pids[DMX_PES_VIDEO],
av7110->pids[DMX_PES_AUDIO],
av7110->pids[DMX_PES_TELETEXT],
0, av7110->pids[DMX_PES_PCR]);
if (!ret)
ret = av7110_fw_cmd(av7110, COMTYPE_PIDFILTER, Scan, 0);
}
return ret;
}
static enum av7110_video_mode sw2mode[16] = {
AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_NTSC,
AV7110_VIDEO_MODE_NTSC, AV7110_VIDEO_MODE_PAL,
AV7110_VIDEO_MODE_NTSC, AV7110_VIDEO_MODE_NTSC,
AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_NTSC,
AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
};
static int get_video_format(struct av7110 *av7110, u8 *buf, int count)
{
int i;
int hsize, vsize;
int sw;
u8 *p;
int ret = 0;
dprintk(2, "av7110:%p, \n", av7110);
if (av7110->sinfo)
return 0;
for (i = 7; i < count - 10; i++) {
p = buf + i;
if (p[0] || p[1] || p[2] != 0x01 || p[3] != 0xb3)
continue;
p += 4;
hsize = ((p[1] &0xF0) >> 4) | (p[0] << 4);
vsize = ((p[1] &0x0F) << 8) | (p[2]);
sw = (p[3] & 0x0F);
ret = av7110_set_vidmode(av7110, sw2mode[sw]);
if (!ret) {
dprintk(2, "playback %dx%d fr=%d\n", hsize, vsize, sw);
av7110->sinfo = 1;
}
break;
}
return ret;
}
/****************************************************************************
* I/O buffer management and control
****************************************************************************/
static inline long aux_ring_buffer_write(struct dvb_ringbuffer *rbuf,
const u8 *buf, unsigned long count)
{
unsigned long todo = count;
int free;
while (todo > 0) {
if (dvb_ringbuffer_free(rbuf) < 2048) {
if (wait_event_interruptible(rbuf->queue,
(dvb_ringbuffer_free(rbuf) >= 2048)))
return count - todo;
}
free = dvb_ringbuffer_free(rbuf);
if (free > todo)
free = todo;
dvb_ringbuffer_write(rbuf, buf, free);
todo -= free;
buf += free;
}
return count - todo;
}
static void play_video_cb(u8 *buf, int count, void *priv)
{
struct av7110 *av7110 = (struct av7110 *) priv;
dprintk(2, "av7110:%p, \n", av7110);
if ((buf[3] & 0xe0) == 0xe0) {
get_video_format(av7110, buf, count);
aux_ring_buffer_write(&av7110->avout, buf, count);
} else
aux_ring_buffer_write(&av7110->aout, buf, count);
}
static void play_audio_cb(u8 *buf, int count, void *priv)
{
struct av7110 *av7110 = (struct av7110 *) priv;
dprintk(2, "av7110:%p, \n", av7110);
aux_ring_buffer_write(&av7110->aout, buf, count);
}
#define FREE_COND (dvb_ringbuffer_free(&av7110->avout) >= 20 * 1024 && \
dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)
static ssize_t dvb_play(struct av7110 *av7110, const char __user *buf,
unsigned long count, int nonblock, int type)
{
unsigned long todo = count, n;
dprintk(2, "av7110:%p, \n", av7110);
if (!av7110->kbuf[type])
return -ENOBUFS;
if (nonblock && !FREE_COND)
return -EWOULDBLOCK;
while (todo > 0) {
if (!FREE_COND) {
if (nonblock)
return count - todo;
if (wait_event_interruptible(av7110->avout.queue,
FREE_COND))
return count - todo;
}
n = todo;
if (n > IPACKS * 2)
n = IPACKS * 2;
if (copy_from_user(av7110->kbuf[type], buf, n))
return -EFAULT;
av7110_ipack_instant_repack(av7110->kbuf[type], n,
&av7110->ipack[type]);
todo -= n;
buf += n;
}
return count - todo;
}
static ssize_t dvb_play_kernel(struct av7110 *av7110, const u8 *buf,
unsigned long count, int nonblock, int type)
{
unsigned long todo = count, n;
dprintk(2, "av7110:%p, \n", av7110);
if (!av7110->kbuf[type])
return -ENOBUFS;
if (nonblock && !FREE_COND)
return -EWOULDBLOCK;
while (todo > 0) {
if (!FREE_COND) {
if (nonblock)
return count - todo;
if (wait_event_interruptible(av7110->avout.queue,
FREE_COND))
return count - todo;
}
n = todo;
if (n > IPACKS * 2)
n = IPACKS * 2;
av7110_ipack_instant_repack(buf, n, &av7110->ipack[type]);
todo -= n;
buf += n;
}
return count - todo;
}
static ssize_t dvb_aplay(struct av7110 *av7110, const char __user *buf,
unsigned long count, int nonblock, int type)
{
unsigned long todo = count, n;
dprintk(2, "av7110:%p, \n", av7110);
if (!av7110->kbuf[type])
return -ENOBUFS;
if (nonblock && dvb_ringbuffer_free(&av7110->aout) < 20 * 1024)
return -EWOULDBLOCK;
while (todo > 0) {
if (dvb_ringbuffer_free(&av7110->aout) < 20 * 1024) {
if (nonblock)
return count - todo;
if (wait_event_interruptible(av7110->aout.queue,
(dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)))
return count-todo;
}
n = todo;
if (n > IPACKS * 2)
n = IPACKS * 2;
if (copy_from_user(av7110->kbuf[type], buf, n))
return -EFAULT;
av7110_ipack_instant_repack(av7110->kbuf[type], n,
&av7110->ipack[type]);
todo -= n;
buf += n;
}
return count - todo;
}
void av7110_p2t_init(struct av7110_p2t *p, struct dvb_demux_feed *feed)
{
memset(p->pes, 0, TS_SIZE);
p->counter = 0;
p->pos = 0;
p->frags = 0;
if (feed)
p->feed = feed;
}
static void clear_p2t(struct av7110_p2t *p)
{
memset(p->pes, 0, TS_SIZE);
// p->counter = 0;
p->pos = 0;
p->frags = 0;
}
static int find_pes_header(u8 const *buf, long int length, int *frags)
{
int c = 0;
int found = 0;
*frags = 0;
while (c < length - 3 && !found) {
if (buf[c] == 0x00 && buf[c + 1] == 0x00 &&
buf[c + 2] == 0x01) {
switch ( buf[c + 3] ) {
case PROG_STREAM_MAP:
case PRIVATE_STREAM2:
case PROG_STREAM_DIR:
case ECM_STREAM :
case EMM_STREAM :
case PADDING_STREAM :
case DSM_CC_STREAM :
case ISO13522_STREAM:
case PRIVATE_STREAM1:
case AUDIO_STREAM_S ... AUDIO_STREAM_E:
case VIDEO_STREAM_S ... VIDEO_STREAM_E:
found = 1;
break;
default:
c++;
break;
}
} else
c++;
}
if (c == length - 3 && !found) {
if (buf[length - 1] == 0x00)
*frags = 1;
if (buf[length - 2] == 0x00 &&
buf[length - 1] == 0x00)
*frags = 2;
if (buf[length - 3] == 0x00 &&
buf[length - 2] == 0x00 &&
buf[length - 1] == 0x01)
*frags = 3;
return -1;
}
return c;
}
void av7110_p2t_write(u8 const *buf, long int length, u16 pid, struct av7110_p2t *p)
{
int c, c2, l, add;
int check, rest;
c = 0;
c2 = 0;
if (p->frags){
check = 0;
switch(p->frags) {
case 1:
if (buf[c] == 0x00 && buf[c + 1] == 0x01) {
check = 1;
c += 2;
}
break;
case 2:
if (buf[c] == 0x01) {
check = 1;
c++;
}
break;
case 3:
check = 1;
}
if (check) {
switch (buf[c]) {
case PROG_STREAM_MAP:
case PRIVATE_STREAM2:
case PROG_STREAM_DIR:
case ECM_STREAM :
case EMM_STREAM :
case PADDING_STREAM :
case DSM_CC_STREAM :
case ISO13522_STREAM:
case PRIVATE_STREAM1:
case AUDIO_STREAM_S ... AUDIO_STREAM_E:
case VIDEO_STREAM_S ... VIDEO_STREAM_E:
p->pes[0] = 0x00;
p->pes[1] = 0x00;
p->pes[2] = 0x01;
p->pes[3] = buf[c];
p->pos = 4;
memcpy(p->pes + p->pos, buf + c, (TS_SIZE - 4) - p->pos);
c += (TS_SIZE - 4) - p->pos;
p_to_t(p->pes, (TS_SIZE - 4), pid, &p->counter, p->feed);
clear_p2t(p);
break;
default:
c = 0;
break;
}
}
p->frags = 0;
}
if (p->pos) {
c2 = find_pes_header(buf + c, length - c, &p->frags);
if (c2 >= 0 && c2 < (TS_SIZE - 4) - p->pos)
l = c2+c;
else
l = (TS_SIZE - 4) - p->pos;
memcpy(p->pes + p->pos, buf, l);
c += l;
p->pos += l;
p_to_t(p->pes, p->pos, pid, &p->counter, p->feed);
clear_p2t(p);
}
add = 0;
while (c < length) {
c2 = find_pes_header(buf + c + add, length - c - add, &p->frags);
if (c2 >= 0) {
c2 += c + add;
if (c2 > c){
p_to_t(buf + c, c2 - c, pid, &p->counter, p->feed);
c = c2;
clear_p2t(p);
add = 0;
} else
add = 1;
} else {
l = length - c;
rest = l % (TS_SIZE - 4);
l -= rest;
p_to_t(buf + c, l, pid, &p->counter, p->feed);
memcpy(p->pes, buf + c + l, rest);
p->pos = rest;
c = length;
}
}
}
static int write_ts_header2(u16 pid, u8 *counter, int pes_start, u8 *buf, u8 length)
{
int i;
int c = 0;
int fill;
u8 tshead[4] = { 0x47, 0x00, 0x00, 0x10 };
fill = (TS_SIZE - 4) - length;
if (pes_start)
tshead[1] = 0x40;
if (fill)
tshead[3] = 0x30;
tshead[1] |= (u8)((pid & 0x1F00) >> 8);
tshead[2] |= (u8)(pid & 0x00FF);
tshead[3] |= ((*counter)++ & 0x0F);
memcpy(buf, tshead, 4);
c += 4;
if (fill) {
buf[4] = fill - 1;
c++;
if (fill > 1) {
buf[5] = 0x00;
c++;
}
for (i = 6; i < fill + 4; i++) {
buf[i] = 0xFF;
c++;
}
}
return c;
}
static void p_to_t(u8 const *buf, long int length, u16 pid, u8 *counter,
struct dvb_demux_feed *feed)
{
int l, pes_start;
u8 obuf[TS_SIZE];
long c = 0;
pes_start = 0;
if (length > 3 &&
buf[0] == 0x00 && buf[1] == 0x00 && buf[2] == 0x01)
switch (buf[3]) {
case PROG_STREAM_MAP:
case PRIVATE_STREAM2:
case PROG_STREAM_DIR:
case ECM_STREAM :
case EMM_STREAM :
case PADDING_STREAM :
case DSM_CC_STREAM :
case ISO13522_STREAM:
case PRIVATE_STREAM1:
case AUDIO_STREAM_S ... AUDIO_STREAM_E:
case VIDEO_STREAM_S ... VIDEO_STREAM_E:
pes_start = 1;
break;
default:
break;
}
while (c < length) {
memset(obuf, 0, TS_SIZE);
if (length - c >= (TS_SIZE - 4)){
l = write_ts_header2(pid, counter, pes_start,
obuf, (TS_SIZE - 4));
memcpy(obuf + l, buf + c, TS_SIZE - l);
c += TS_SIZE - l;
} else {
l = write_ts_header2(pid, counter, pes_start,
obuf, length - c);
memcpy(obuf + l, buf + c, TS_SIZE - l);
c = length;
}
feed->cb.ts(obuf, 188, NULL, 0, &feed->feed.ts, DMX_OK);
pes_start = 0;
}
}
int av7110_write_to_decoder(struct dvb_demux_feed *feed, const u8 *buf, size_t len)
{
struct dvb_demux *demux = feed->demux;
struct av7110 *av7110 = (struct av7110 *) demux->priv;
struct ipack *ipack = &av7110->ipack[feed->pes_type];
dprintk(2, "av7110:%p, \n", av7110);
if (av7110->full_ts && demux->dmx.frontend->source != DMX_MEMORY_FE)
return 0;
switch (feed->pes_type) {
case 0:
if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
return -EINVAL;
break;
case 1:
if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY)
return -EINVAL;
break;
default:
return -1;
}
if (!(buf[3] & 0x10)) /* no payload? */
return -1;
if (buf[1] & 0x40)
av7110_ipack_flush(ipack);
if (buf[3] & 0x20) { /* adaptation field? */
len -= buf[4] + 1;
buf += buf[4] + 1;
if (!len)
return 0;
}
av7110_ipack_instant_repack(buf + 4, len - 4, &av7110->ipack[feed->pes_type]);
return 0;
}
/******************************************************************************
* Video MPEG decoder events
******************************************************************************/
void dvb_video_add_event(struct av7110 *av7110, struct video_event *event)
{
struct dvb_video_events *events = &av7110->video_events;
int wp;
spin_lock_bh(&events->lock);
wp = (events->eventw + 1) % MAX_VIDEO_EVENT;
if (wp == events->eventr) {
events->overflow = 1;
events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT;
}
//FIXME: timestamp?
memcpy(&events->events[events->eventw], event, sizeof(struct video_event));
events->eventw = wp;
spin_unlock_bh(&events->lock);
wake_up_interruptible(&events->wait_queue);
}
static int dvb_video_get_event (struct av7110 *av7110, struct video_event *event, int flags)
{
struct dvb_video_events *events = &av7110->video_events;
if (events->overflow) {
events->overflow = 0;
return -EOVERFLOW;
}
if (events->eventw == events->eventr) {
int ret;
if (flags & O_NONBLOCK)
return -EWOULDBLOCK;
ret = wait_event_interruptible(events->wait_queue,
events->eventw != events->eventr);
if (ret < 0)
return ret;
}
spin_lock_bh(&events->lock);
memcpy(event, &events->events[events->eventr],
sizeof(struct video_event));
events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT;
spin_unlock_bh(&events->lock);
return 0;
}
/******************************************************************************
* DVB device file operations
******************************************************************************/
static unsigned int dvb_video_poll(struct file *file, poll_table *wait)
{
struct dvb_device *dvbdev = file->private_data;
struct av7110 *av7110 = dvbdev->priv;
unsigned int mask = 0;
dprintk(2, "av7110:%p, \n", av7110);
if ((file->f_flags & O_ACCMODE) != O_RDONLY)
poll_wait(file, &av7110->avout.queue, wait);
poll_wait(file, &av7110->video_events.wait_queue, wait);
if (av7110->video_events.eventw != av7110->video_events.eventr)
mask = POLLPRI;
if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
if (av7110->playing) {
if (FREE_COND)
mask |= (POLLOUT | POLLWRNORM);
} else /* if not playing: may play if asked for */
mask |= (POLLOUT | POLLWRNORM);
}
return mask;
}
static ssize_t dvb_video_write(struct file *file, const char __user *buf,
size_t count, loff_t *ppos)
{
struct dvb_device *dvbdev = file->private_data;
struct av7110 *av7110 = dvbdev->priv;
dprintk(2, "av7110:%p, \n", av7110);
if ((file->f_flags & O_ACCMODE) == O_RDONLY)
return -EPERM;
if (av7110->videostate.stream_source != VIDEO_SOURCE_MEMORY)
return -EPERM;
return dvb_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 1);
}
static unsigned int dvb_audio_poll(struct file *file, poll_table *wait)
{
struct dvb_device *dvbdev = file->private_data;
struct av7110 *av7110 = dvbdev->priv;
unsigned int mask = 0;
dprintk(2, "av7110:%p, \n", av7110);
poll_wait(file, &av7110->aout.queue, wait);
if (av7110->playing) {
if (dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)
mask |= (POLLOUT | POLLWRNORM);
} else /* if not playing: may play if asked for */
mask = (POLLOUT | POLLWRNORM);
return mask;
}
static ssize_t dvb_audio_write(struct file *file, const char __user *buf,
size_t count, loff_t *ppos)
{
struct dvb_device *dvbdev = file->private_data;
struct av7110 *av7110 = dvbdev->priv;
dprintk(2, "av7110:%p, \n", av7110);
if (av7110->audiostate.stream_source != AUDIO_SOURCE_MEMORY) {
printk(KERN_ERR "not audio source memory\n");
return -EPERM;
}
return dvb_aplay(av7110, buf, count, file->f_flags & O_NONBLOCK, 0);
}
static u8 iframe_header[] = { 0x00, 0x00, 0x01, 0xe0, 0x00, 0x00, 0x80, 0x00, 0x00 };
#define MIN_IFRAME 400000
static int play_iframe(struct av7110 *av7110, char __user *buf, unsigned int len, int nonblock)
{
unsigned i, n;
int progressive = 0;
int match = 0;
dprintk(2, "av7110:%p, \n", av7110);
if (!(av7110->playing & RP_VIDEO)) {
if (av7110_av_start_play(av7110, RP_VIDEO) < 0)
return -EBUSY;
}
/* search in buf for instances of 00 00 01 b5 1? */
for (i = 0; i < len; i++) {
unsigned char c;
if (get_user(c, buf + i))
return -EFAULT;
if (match == 5) {
progressive = c & 0x08;
match = 0;
}
if (c == 0x00) {
match = (match == 1 || match == 2) ? 2 : 1;
continue;
}
switch (match++) {
case 2: if (c == 0x01)
continue;
break;
case 3: if (c == 0xb5)
continue;
break;
case 4: if ((c & 0xf0) == 0x10)
continue;
break;
}
match = 0;
}
/* setting n always > 1, fixes problems when playing stillframes
consisting of I- and P-Frames */
n = MIN_IFRAME / len + 1;
/* FIXME: nonblock? */
dvb_play_kernel(av7110, iframe_header, sizeof(iframe_header), 0, 1);
for (i = 0; i < n; i++)
dvb_play(av7110, buf, len, 0, 1);
av7110_ipack_flush(&av7110->ipack[1]);
if (progressive)
return vidcom(av7110, AV_VIDEO_CMD_FREEZE, 1);
else
return 0;
}
static int dvb_video_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, void *parg)
{
struct dvb_device *dvbdev = file->private_data;
struct av7110 *av7110 = dvbdev->priv;
unsigned long arg = (unsigned long) parg;
int ret = 0;
dprintk(1, "av7110:%p, cmd=%04x\n", av7110,cmd);
if ((file->f_flags & O_ACCMODE) == O_RDONLY) {
if ( cmd != VIDEO_GET_STATUS && cmd != VIDEO_GET_EVENT &&
cmd != VIDEO_GET_SIZE ) {
return -EPERM;
}
}
switch (cmd) {
case VIDEO_STOP:
av7110->videostate.play_state = VIDEO_STOPPED;
if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY)
ret = av7110_av_stop(av7110, RP_VIDEO);
else
ret = vidcom(av7110, AV_VIDEO_CMD_STOP,
av7110->videostate.video_blank ? 0 : 1);
if (!ret)
av7110->trickmode = TRICK_NONE;
break;
case VIDEO_PLAY:
av7110->trickmode = TRICK_NONE;
if (av7110->videostate.play_state == VIDEO_FREEZED) {
av7110->videostate.play_state = VIDEO_PLAYING;
ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
if (ret)
break;
}
if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY) {
if (av7110->playing == RP_AV) {
ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
if (ret)
break;
av7110->playing &= ~RP_VIDEO;
}
ret = av7110_av_start_play(av7110, RP_VIDEO);
}
if (!ret)
ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
if (!ret)
av7110->videostate.play_state = VIDEO_PLAYING;
break;
case VIDEO_FREEZE:
av7110->videostate.play_state = VIDEO_FREEZED;
if (av7110->playing & RP_VIDEO)
ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Pause, 0);
else
ret = vidcom(av7110, AV_VIDEO_CMD_FREEZE, 1);
if (!ret)
av7110->trickmode = TRICK_FREEZE;
break;
case VIDEO_CONTINUE:
if (av7110->playing & RP_VIDEO)
ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Continue, 0);
if (!ret)
ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
if (!ret) {
av7110->videostate.play_state = VIDEO_PLAYING;
av7110->trickmode = TRICK_NONE;
}
break;
case VIDEO_SELECT_SOURCE:
av7110->videostate.stream_source = (video_stream_source_t) arg;
break;
case VIDEO_SET_BLANK:
av7110->videostate.video_blank = (int) arg;
break;
case VIDEO_GET_STATUS:
memcpy(parg, &av7110->videostate, sizeof(struct video_status));
break;
case VIDEO_GET_EVENT:
ret = dvb_video_get_event(av7110, parg, file->f_flags);
break;
case VIDEO_GET_SIZE:
memcpy(parg, &av7110->video_size, sizeof(video_size_t));
break;
case VIDEO_SET_DISPLAY_FORMAT:
{
video_displayformat_t format = (video_displayformat_t) arg;
switch (format) {
case VIDEO_PAN_SCAN:
av7110->display_panscan = VID_PAN_SCAN_PREF;
break;
case VIDEO_LETTER_BOX:
av7110->display_panscan = VID_VC_AND_PS_PREF;
break;
case VIDEO_CENTER_CUT_OUT:
av7110->display_panscan = VID_CENTRE_CUT_PREF;
break;
default:
ret = -EINVAL;
}
if (ret < 0)
break;
av7110->videostate.display_format = format;
ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetPanScanType,
1, av7110->display_panscan);
break;
}
case VIDEO_SET_FORMAT:
if (arg > 1) {
ret = -EINVAL;
break;
}
av7110->display_ar = arg;
ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetMonitorType,
1, (u16) arg);
break;
case VIDEO_STILLPICTURE:
{
struct video_still_picture *pic =
(struct video_still_picture *) parg;
av7110->videostate.stream_source = VIDEO_SOURCE_MEMORY;
dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
ret = play_iframe(av7110, pic->iFrame, pic->size,
file->f_flags & O_NONBLOCK);
break;
}
case VIDEO_FAST_FORWARD:
//note: arg is ignored by firmware
if (av7110->playing & RP_VIDEO)
ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
__Scan_I, 2, AV_PES, 0);
else
ret = vidcom(av7110, AV_VIDEO_CMD_FFWD, arg);
if (!ret) {
av7110->trickmode = TRICK_FAST;
av7110->videostate.play_state = VIDEO_PLAYING;
}
break;
case VIDEO_SLOWMOTION:
if (av7110->playing&RP_VIDEO) {
ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Slow, 2, 0, 0);
if (!ret)
ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
} else {
ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
if (!ret)
ret = vidcom(av7110, AV_VIDEO_CMD_STOP, 0);
if (!ret)
ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
}
if (!ret) {
av7110->trickmode = TRICK_SLOW;
av7110->videostate.play_state = VIDEO_PLAYING;
}
break;
case VIDEO_GET_CAPABILITIES:
*(int *)parg = VIDEO_CAP_MPEG1 | VIDEO_CAP_MPEG2 |
VIDEO_CAP_SYS | VIDEO_CAP_PROG;
break;
case VIDEO_CLEAR_BUFFER:
dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
av7110_ipack_reset(&av7110->ipack[1]);
if (av7110->playing == RP_AV) {
ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
__Play, 2, AV_PES, 0);
if (ret)
break;
if (av7110->trickmode == TRICK_FAST)
ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
__Scan_I, 2, AV_PES, 0);
if (av7110->trickmode == TRICK_SLOW) {
ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
__Slow, 2, 0, 0);
if (!ret)
ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
}
if (av7110->trickmode == TRICK_FREEZE)
ret = vidcom(av7110, AV_VIDEO_CMD_STOP, 1);
}
break;
case VIDEO_SET_STREAMTYPE:
break;
default:
ret = -ENOIOCTLCMD;
break;
}
return ret;
}
static int dvb_audio_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, void *parg)
{
struct dvb_device *dvbdev = file->private_data;
struct av7110 *av7110 = dvbdev->priv;
unsigned long arg = (unsigned long) parg;
int ret = 0;
dprintk(1, "av7110:%p, cmd=%04x\n", av7110,cmd);
if (((file->f_flags & O_ACCMODE) == O_RDONLY) &&
(cmd != AUDIO_GET_STATUS))
return -EPERM;
switch (cmd) {
case AUDIO_STOP:
if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
ret = av7110_av_stop(av7110, RP_AUDIO);
else
ret = audcom(av7110, AUDIO_CMD_MUTE);
if (!ret)
av7110->audiostate.play_state = AUDIO_STOPPED;
break;
case AUDIO_PLAY:
if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
ret = av7110_av_start_play(av7110, RP_AUDIO);
if (!ret)
ret = audcom(av7110, AUDIO_CMD_UNMUTE);
if (!ret)
av7110->audiostate.play_state = AUDIO_PLAYING;
break;
case AUDIO_PAUSE:
ret = audcom(av7110, AUDIO_CMD_MUTE);
if (!ret)
av7110->audiostate.play_state = AUDIO_PAUSED;
break;
case AUDIO_CONTINUE:
if (av7110->audiostate.play_state == AUDIO_PAUSED) {
av7110->audiostate.play_state = AUDIO_PLAYING;
ret = audcom(av7110, AUDIO_CMD_UNMUTE | AUDIO_CMD_PCM16);
}
break;
case AUDIO_SELECT_SOURCE:
av7110->audiostate.stream_source = (audio_stream_source_t) arg;
break;
case AUDIO_SET_MUTE:
{
ret = audcom(av7110, arg ? AUDIO_CMD_MUTE : AUDIO_CMD_UNMUTE);
if (!ret)
av7110->audiostate.mute_state = (int) arg;
break;
}
case AUDIO_SET_AV_SYNC:
av7110->audiostate.AV_sync_state = (int) arg;
ret = audcom(av7110, arg ? AUDIO_CMD_SYNC_ON : AUDIO_CMD_SYNC_OFF);
break;
case AUDIO_SET_BYPASS_MODE:
if (FW_VERSION(av7110->arm_app) < 0x2621)
ret = -EINVAL;
av7110->audiostate.bypass_mode = (int)arg;
break;
case AUDIO_CHANNEL_SELECT:
av7110->audiostate.channel_select = (audio_channel_select_t) arg;
switch(av7110->audiostate.channel_select) {
case AUDIO_STEREO:
ret = audcom(av7110, AUDIO_CMD_STEREO);
if (!ret) {
if (av7110->adac_type == DVB_ADAC_CRYSTAL)
i2c_writereg(av7110, 0x20, 0x02, 0x49);
else if (av7110->adac_type == DVB_ADAC_MSP34x5)
msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0220);
}
break;
case AUDIO_MONO_LEFT:
ret = audcom(av7110, AUDIO_CMD_MONO_L);
if (!ret) {
if (av7110->adac_type == DVB_ADAC_CRYSTAL)
i2c_writereg(av7110, 0x20, 0x02, 0x4a);
else if (av7110->adac_type == DVB_ADAC_MSP34x5)
msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0200);
}
break;
case AUDIO_MONO_RIGHT:
ret = audcom(av7110, AUDIO_CMD_MONO_R);
if (!ret) {
if (av7110->adac_type == DVB_ADAC_CRYSTAL)
i2c_writereg(av7110, 0x20, 0x02, 0x45);
else if (av7110->adac_type == DVB_ADAC_MSP34x5)
msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0210);
}
break;
default:
ret = -EINVAL;
break;
}
break;
case AUDIO_GET_STATUS:
memcpy(parg, &av7110->audiostate, sizeof(struct audio_status));
break;
case AUDIO_GET_CAPABILITIES:
if (FW_VERSION(av7110->arm_app) < 0x2621)
*(unsigned int *)parg = AUDIO_CAP_LPCM | AUDIO_CAP_MP1 | AUDIO_CAP_MP2;
else
*(unsigned int *)parg = AUDIO_CAP_LPCM | AUDIO_CAP_DTS | AUDIO_CAP_AC3 |
AUDIO_CAP_MP1 | AUDIO_CAP_MP2;
break;
case AUDIO_CLEAR_BUFFER:
dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
av7110_ipack_reset(&av7110->ipack[0]);
if (av7110->playing == RP_AV)
ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
__Play, 2, AV_PES, 0);
break;
case AUDIO_SET_ID:
break;
case AUDIO_SET_MIXER:
{
struct audio_mixer *amix = (struct audio_mixer *)parg;
ret = av7110_set_volume(av7110, amix->volume_left, amix->volume_right);
break;
}
case AUDIO_SET_STREAMTYPE:
break;
default:
ret = -ENOIOCTLCMD;
}
return ret;
}
static int dvb_video_open(struct inode *inode, struct file *file)
{
struct dvb_device *dvbdev = file->private_data;
struct av7110 *av7110 = dvbdev->priv;
int err;
dprintk(2, "av7110:%p, \n", av7110);
if ((err = dvb_generic_open(inode, file)) < 0)
return err;
if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
av7110->video_blank = 1;
av7110->audiostate.AV_sync_state = 1;
av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX;
/* empty event queue */
av7110->video_events.eventr = av7110->video_events.eventw = 0;
}
return 0;
}
static int dvb_video_release(struct inode *inode, struct file *file)
{
struct dvb_device *dvbdev = file->private_data;
struct av7110 *av7110 = dvbdev->priv;
dprintk(2, "av7110:%p, \n", av7110);
if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
av7110_av_stop(av7110, RP_VIDEO);
}
return dvb_generic_release(inode, file);
}
static int dvb_audio_open(struct inode *inode, struct file *file)
{
struct dvb_device *dvbdev = file->private_data;
struct av7110 *av7110 = dvbdev->priv;
int err = dvb_generic_open(inode, file);
dprintk(2, "av7110:%p, \n", av7110);
if (err < 0)
return err;
dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX;
return 0;
}
static int dvb_audio_release(struct inode *inode, struct file *file)
{
struct dvb_device *dvbdev = file->private_data;
struct av7110 *av7110 = dvbdev->priv;
dprintk(2, "av7110:%p, \n", av7110);
av7110_av_stop(av7110, RP_AUDIO);
return dvb_generic_release(inode, file);
}
/******************************************************************************
* driver registration
******************************************************************************/
static struct file_operations dvb_video_fops = {
.owner = THIS_MODULE,
.write = dvb_video_write,
.ioctl = dvb_generic_ioctl,
.open = dvb_video_open,
.release = dvb_video_release,
.poll = dvb_video_poll,
};
static struct dvb_device dvbdev_video = {
.priv = NULL,
.users = 6,
.readers = 5, /* arbitrary */
.writers = 1,
.fops = &dvb_video_fops,
.kernel_ioctl = dvb_video_ioctl,
};
static struct file_operations dvb_audio_fops = {
.owner = THIS_MODULE,
.write = dvb_audio_write,
.ioctl = dvb_generic_ioctl,
.open = dvb_audio_open,
.release = dvb_audio_release,
.poll = dvb_audio_poll,
};
static struct dvb_device dvbdev_audio = {
.priv = NULL,
.users = 1,
.writers = 1,
.fops = &dvb_audio_fops,
.kernel_ioctl = dvb_audio_ioctl,
};
int av7110_av_register(struct av7110 *av7110)
{
av7110->audiostate.AV_sync_state = 0;
av7110->audiostate.mute_state = 0;
av7110->audiostate.play_state = AUDIO_STOPPED;
av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX;
av7110->audiostate.channel_select = AUDIO_STEREO;
av7110->audiostate.bypass_mode = 0;
av7110->videostate.video_blank = 0;
av7110->videostate.play_state = VIDEO_STOPPED;
av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX;
av7110->videostate.video_format = VIDEO_FORMAT_4_3;
av7110->videostate.display_format = VIDEO_LETTER_BOX;
av7110->display_ar = VIDEO_FORMAT_4_3;
av7110->display_panscan = VID_VC_AND_PS_PREF;
init_waitqueue_head(&av7110->video_events.wait_queue);
spin_lock_init(&av7110->video_events.lock);
av7110->video_events.eventw = av7110->video_events.eventr = 0;
av7110->video_events.overflow = 0;
memset(&av7110->video_size, 0, sizeof (video_size_t));
dvb_register_device(&av7110->dvb_adapter, &av7110->video_dev,
&dvbdev_video, av7110, DVB_DEVICE_VIDEO);
dvb_register_device(&av7110->dvb_adapter, &av7110->audio_dev,
&dvbdev_audio, av7110, DVB_DEVICE_AUDIO);
return 0;
}
void av7110_av_unregister(struct av7110 *av7110)
{
dvb_unregister_device(av7110->audio_dev);
dvb_unregister_device(av7110->video_dev);
}
int av7110_av_init(struct av7110 *av7110)
{
void (*play[])(u8 *, int, void *) = { play_audio_cb, play_video_cb };
int i, ret;
for (i = 0; i < 2; i++) {
struct ipack *ipack = av7110->ipack + i;
ret = av7110_ipack_init(ipack, IPACKS, play[i]);
if (ret < 0) {
if (i)
av7110_ipack_free(--ipack);
goto out;
}
ipack->data = av7110;
}
dvb_ringbuffer_init(&av7110->avout, av7110->iobuf, AVOUTLEN);
dvb_ringbuffer_init(&av7110->aout, av7110->iobuf + AVOUTLEN, AOUTLEN);
av7110->kbuf[0] = (u8 *)(av7110->iobuf + AVOUTLEN + AOUTLEN + BMPLEN);
av7110->kbuf[1] = av7110->kbuf[0] + 2 * IPACKS;
out:
return ret;
}
void av7110_av_exit(struct av7110 *av7110)
{
av7110_ipack_free(&av7110->ipack[0]);
av7110_ipack_free(&av7110->ipack[1]);
}
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