diff options
| -rwxr-xr-x | drivers/media/usb/au0828/au0828-dvb.c | 43 | ||||
| -rw-r--r-- | drivers/media/usb/au0828/au0828.h | 2 |
2 files changed, 43 insertions, 2 deletions
diff --git a/drivers/media/usb/au0828/au0828-dvb.c b/drivers/media/usb/au0828/au0828-dvb.c index ab5f93643021..d8b5d9480279 100755 --- a/drivers/media/usb/au0828/au0828-dvb.c +++ b/drivers/media/usb/au0828/au0828-dvb.c @@ -256,8 +256,6 @@ static void au0828_stop_transport(struct au0828_dev *dev, int full_stop) au0828_write(dev, 0x60b, 0x00); } - - static int au0828_dvb_start_feed(struct dvb_demux_feed *feed) { struct dvb_demux *demux = feed->demux; @@ -300,6 +298,8 @@ static int au0828_dvb_stop_feed(struct dvb_demux_feed *feed) dprintk(1, "%s()\n", __func__); if (dvb) { + cancel_work_sync(&dev->restart_streaming); + mutex_lock(&dvb->lock); dvb->stop_count++; dprintk(1, "%s(), start_count: %d, stop_count: %d\n", __func__, @@ -342,6 +342,41 @@ static void au0828_restart_dvb_streaming(struct work_struct *work) mutex_unlock(&dvb->lock); } +static int au0828_set_frontend(struct dvb_frontend *fe) +{ + struct au0828_dev *dev = fe->dvb->priv; + struct au0828_dvb *dvb = &dev->dvb; + int ret, was_streaming; + + mutex_lock(&dvb->lock); + was_streaming = dev->urb_streaming; + if (was_streaming) { + au0828_stop_transport(dev, 1); + + /* + * We can't hold a mutex here, as the restart_streaming + * kthread may also hold it. + */ + mutex_unlock(&dvb->lock); + cancel_work_sync(&dev->restart_streaming); + mutex_lock(&dvb->lock); + + stop_urb_transfer(dev); + } + mutex_unlock(&dvb->lock); + + ret = dvb->set_frontend(fe); + + if (was_streaming) { + mutex_lock(&dvb->lock); + au0828_start_transport(dev); + start_urb_transfer(dev); + mutex_unlock(&dvb->lock); + } + + return ret; +} + static int dvb_register(struct au0828_dev *dev) { struct au0828_dvb *dvb = &dev->dvb; @@ -386,6 +421,10 @@ static int dvb_register(struct au0828_dev *dev) goto fail_frontend; } + /* Hook dvb frontend */ + dvb->set_frontend = dvb->frontend->ops.set_frontend; + dvb->frontend->ops.set_frontend = au0828_set_frontend; + /* register demux stuff */ dvb->demux.dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING | diff --git a/drivers/media/usb/au0828/au0828.h b/drivers/media/usb/au0828/au0828.h index 5439772c1551..7112b9d956fa 100644 --- a/drivers/media/usb/au0828/au0828.h +++ b/drivers/media/usb/au0828/au0828.h @@ -104,6 +104,8 @@ struct au0828_dvb { int feeding; int start_count; int stop_count; + + int (*set_frontend)(struct dvb_frontend *fe); }; enum au0828_stream_state { |