static int ts_init_encoder(struct saa7134_dev* dev)
{
struct v4l2_ext_controls ctrls = { V4L2_CTRL_CLASS_MPEG, 0 };
ts_reset_encoder(dev);
saa7134_i2c_call_clients(dev, VIDIOC_S_EXT_CTRLS, &ctrls);
dev->empress_started = 1;
return 0;
}
static void empress_signal_update(struct work_struct *work)
{
struct saa7134_dev* dev =
container_of(work, struct saa7134_dev, empress_workqueue);
if (dev->nosignal) {
dprintk("no video signal\n");
ts_reset_encoder(dev);
} else {
dprintk("video signal acquired\n");
if (dev->empress_users)
ts_init_encoder(dev);
}
}
static int ts_release(struct inode *inode, struct file *file)
{
struct saa7134_dev *dev = file->private_data;
videobuf_stop(&dev->empress_tsq);
videobuf_mmap_free(&dev->empress_tsq);
dev->empress_users--;
/* stop the encoder */
ts_reset_encoder(dev);
/* Mute audio */
saa_writeb(SAA7134_AUDIO_MUTE_CTRL,
saa_readb(SAA7134_AUDIO_MUTE_CTRL) | (1 << 6));
return 0;
}
static int ts_init_encoder(struct saa7134_dev* dev)
{
u32 leading_null_bytes = 0;
/* If more cards start to need this, then this
should probably be added to the card definitions. */
switch (dev->board) {
case SAA7134_BOARD_BEHOLD_M6:
case SAA7134_BOARD_BEHOLD_M63:
case SAA7134_BOARD_BEHOLD_M6_EXTRA:
leading_null_bytes = 1;
break;
}
ts_reset_encoder(dev);
saa_call_all(dev, core, init, leading_null_bytes);
dev->empress_started = 1;
return 0;
}