static int dvb_demux_do_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, void *parg)
{
struct dmxdev_filter *dmxdevfilter = file->private_data;
struct dmxdev *dmxdev = dmxdevfilter->dev;
unsigned long arg = (unsigned long)parg;
int ret = 0;
if (mutex_lock_interruptible(&dmxdev->mutex))
return -ERESTARTSYS;
switch (cmd) {
case DMX_START:
if (mutex_lock_interruptible(&dmxdevfilter->mutex)) {
mutex_unlock(&dmxdev->mutex);
return -ERESTARTSYS;
}
if (dmxdevfilter->state < DMXDEV_STATE_SET)
ret = -EINVAL;
else
ret = dvb_dmxdev_filter_start(dmxdevfilter);
mutex_unlock(&dmxdevfilter->mutex);
break;
case DMX_STOP:
if (mutex_lock_interruptible(&dmxdevfilter->mutex)) {
mutex_unlock(&dmxdev->mutex);
return -ERESTARTSYS;
}
ret = dvb_dmxdev_filter_stop(dmxdevfilter);
mutex_unlock(&dmxdevfilter->mutex);
break;
case DMX_SET_FILTER:
if (mutex_lock_interruptible(&dmxdevfilter->mutex)) {
mutex_unlock(&dmxdev->mutex);
return -ERESTARTSYS;
}
ret = dvb_dmxdev_filter_set(dmxdev, dmxdevfilter, parg);
mutex_unlock(&dmxdevfilter->mutex);
break;
case DMX_SET_PES_FILTER:
if (mutex_lock_interruptible(&dmxdevfilter->mutex)) {
mutex_unlock(&dmxdev->mutex);
return -ERESTARTSYS;
}
ret = dvb_dmxdev_pes_filter_set(dmxdev, dmxdevfilter, parg);
mutex_unlock(&dmxdevfilter->mutex);
break;
case DMX_SET_BUFFER_SIZE:
if (mutex_lock_interruptible(&dmxdevfilter->mutex)) {
mutex_unlock(&dmxdev->mutex);
return -ERESTARTSYS;
}
ret = dvb_dmxdev_set_buffer_size(dmxdevfilter, arg);
mutex_unlock(&dmxdevfilter->mutex);
break;
case DMX_GET_PES_PIDS:
if (!dmxdev->demux->get_pes_pids) {
ret = -EINVAL;
break;
}
dmxdev->demux->get_pes_pids(dmxdev->demux, parg);
break;
case DMX_GET_CAPS:
if (!dmxdev->demux->get_caps) {
ret = -EINVAL;
break;
}
ret = dmxdev->demux->get_caps(dmxdev->demux, parg);
break;
case DMX_SET_SOURCE:
if (!dmxdev->demux->set_source) {
ret = -EINVAL;
break;
}
ret = dmxdev->demux->set_source(dmxdev->demux, parg);
break;
case DMX_GET_STC:
if (!dmxdev->demux->get_stc) {
ret = -EINVAL;
break;
}
ret = dmxdev->demux->get_stc(dmxdev->demux,
((struct dmx_stc *)parg)->num,
&((struct dmx_stc *)parg)->stc,
&((struct dmx_stc *)parg)->base);
break;
default:
ret = -EINVAL;
break;
}
mutex_unlock(&dmxdev->mutex);
return ret;
}
static int dvb_demux_do_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, void *parg)
{
struct dmxdev_filter *dmxdevfilter=dvb_dmxdev_file_to_filter(file);
struct dmxdev *dmxdev=dmxdevfilter->dev;
unsigned long arg=(unsigned long) parg;
int ret=0;
if (down_interruptible (&dmxdev->mutex))
return -ERESTARTSYS;
switch (cmd) {
case DMX_START:
if (down_interruptible(&dmxdevfilter->mutex)) {
up(&dmxdev->mutex);
return -ERESTARTSYS;
}
if (dmxdevfilter->state<DMXDEV_STATE_SET)
ret = -EINVAL;
else
ret = dvb_dmxdev_filter_start(dmxdevfilter);
up(&dmxdevfilter->mutex);
break;
case DMX_STOP:
if (down_interruptible(&dmxdevfilter->mutex)) {
up(&dmxdev->mutex);
return -ERESTARTSYS;
}
ret=dvb_dmxdev_filter_stop(dmxdevfilter);
up(&dmxdevfilter->mutex);
break;
case DMX_SET_FILTER:
if (down_interruptible(&dmxdevfilter->mutex)) {
up(&dmxdev->mutex);
return -ERESTARTSYS;
}
ret = dvb_dmxdev_filter_set(dmxdev, dmxdevfilter,
(struct dmx_sct_filter_params *)parg);
up(&dmxdevfilter->mutex);
break;
case DMX_SET_PES_FILTER:
if (down_interruptible(&dmxdevfilter->mutex)) {
up(&dmxdev->mutex);
return -ERESTARTSYS;
}
ret=dvb_dmxdev_pes_filter_set(dmxdev, dmxdevfilter,
(struct dmx_pes_filter_params *)parg);
up(&dmxdevfilter->mutex);
break;
case DMX_SET_BUFFER_SIZE:
if (down_interruptible(&dmxdevfilter->mutex)) {
up(&dmxdev->mutex);
return -ERESTARTSYS;
}
ret=dvb_dmxdev_set_buffer_size(dmxdevfilter, arg);
up(&dmxdevfilter->mutex);
break;
case DMX_GET_EVENT:
break;
case DMX_GET_PES_PIDS:
if (!dmxdev->demux->get_pes_pids) {
ret=-EINVAL;
break;
}
dmxdev->demux->get_pes_pids(dmxdev->demux, (u16 *)parg);
break;
case DMX_GET_STC:
if (!dmxdev->demux->get_stc) {
ret=-EINVAL;
break;
}
ret = dmxdev->demux->get_stc(dmxdev->demux,
((struct dmx_stc *)parg)->num,
&((struct dmx_stc *)parg)->stc,
&((struct dmx_stc *)parg)->base);
break;
default:
ret=-EINVAL;
}
up(&dmxdev->mutex);
return ret;
}
