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linux/drivers/media/dvb/ttpci/av7110_av.c
Hans Verkuil 2435be11ae V4L/DVB (5307): Add support for the cx23415 MPEG decoding features. 
The cx23415 adds some extra features that this DVB decoding API did
not support. This API has been expanded to support the required
features. Both source and binary backwards compatibility is kept
intact by these changes. So existing applications are not affected.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Ralph Metzler <rjkm@metzlerbros.de>
Signed-off-by: Oliver Endriss <o.endriss@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-04-27 15:43:28 -03:00

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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/smp_lock.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, 0);
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, int 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 int sw2mode[16] = {
VIDEO_MODE_PAL, VIDEO_MODE_NTSC, VIDEO_MODE_NTSC, VIDEO_MODE_PAL,
VIDEO_MODE_NTSC, VIDEO_MODE_NTSC, VIDEO_MODE_PAL, VIDEO_MODE_NTSC,
VIDEO_MODE_PAL, VIDEO_MODE_PAL, VIDEO_MODE_PAL, VIDEO_MODE_PAL,
VIDEO_MODE_PAL, VIDEO_MODE_PAL, VIDEO_MODE_PAL, 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 char *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 u8 __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 u8 __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);
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, u8 __user *buf, unsigned int len, int nonblock)
{
int i, n;
dprintk(2, "av7110:%p, \n", av7110);
if (!(av7110->playing & RP_VIDEO)) {
if (av7110_av_start_play(av7110, RP_VIDEO) < 0)
return -EBUSY;
}
/* 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]);
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;
u16 val = 0;
switch (format) {
case VIDEO_PAN_SCAN:
val = VID_PAN_SCAN_PREF;
break;
case VIDEO_LETTER_BOX:
val = VID_VC_AND_PS_PREF;
break;
case VIDEO_CENTER_CUT_OUT:
val = 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, (u16) val);
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_CENTER_CUT_OUT;
av7110->display_ar = VIDEO_FORMAT_4_3;
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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