diff options
| -rw-r--r-- | drivers/media/dvb-core/dvbdev.c | 45 | ||||
| -rw-r--r-- | drivers/media/dvb-core/dvbdev.h | 1 |
2 files changed, 46 insertions, 0 deletions
diff --git a/drivers/media/dvb-core/dvbdev.c b/drivers/media/dvb-core/dvbdev.c index c5de02455b17..a991819ed1e1 100644 --- a/drivers/media/dvb-core/dvbdev.c +++ b/drivers/media/dvb-core/dvbdev.c @@ -380,6 +380,51 @@ void dvb_unregister_device(struct dvb_device *dvbdev) } EXPORT_SYMBOL(dvb_unregister_device); + +void dvb_create_media_graph(struct media_device *mdev) +{ +#ifdef CONFIG_MEDIA_CONTROLLER_DVB + struct media_entity *entity, *tuner = NULL, *fe = NULL; + struct media_entity *demux = NULL, *dvr = NULL, *ca = NULL; + + if (!mdev) + return; + + media_device_for_each_entity(entity, mdev) { + switch (entity->type) { + case MEDIA_ENT_T_V4L2_SUBDEV_TUNER: + tuner = entity; + break; + case MEDIA_ENT_T_DEVNODE_DVB_FE: + fe = entity; + break; + case MEDIA_ENT_T_DEVNODE_DVB_DEMUX: + demux = entity; + break; + case MEDIA_ENT_T_DEVNODE_DVB_DVR: + dvr = entity; + break; + case MEDIA_ENT_T_DEVNODE_DVB_CA: + ca = entity; + break; + } + } + + if (tuner && fe) + media_entity_create_link(tuner, 0, fe, 0, 0); + + if (fe && demux) + media_entity_create_link(fe, 1, demux, 0, 0); + + if (demux && dvr) + media_entity_create_link(demux, 1, dvr, 0, 0); + + if (demux && ca) + media_entity_create_link(demux, 1, ca, 0, 0); +#endif +} +EXPORT_SYMBOL_GPL(dvb_create_media_graph); + static int dvbdev_check_free_adapter_num(int num) { struct list_head *entry; diff --git a/drivers/media/dvb-core/dvbdev.h b/drivers/media/dvb-core/dvbdev.h index 464067c43a35..467c1311bd4c 100644 --- a/drivers/media/dvb-core/dvbdev.h +++ b/drivers/media/dvb-core/dvbdev.h @@ -122,6 +122,7 @@ extern int dvb_register_device (struct dvb_adapter *adap, int type); extern void dvb_unregister_device (struct dvb_device *dvbdev); +void dvb_create_media_graph(struct media_device *mdev); extern int dvb_generic_open (struct inode *inode, struct file *file); extern int dvb_generic_release (struct inode *inode, struct file *file); |