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[media] dvbdev: add support for indirect interface links 

Some interfaces indirectly control multiple entities.
Add support for those.

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Mauro Carvalho Chehab 2015-08-21 09:32:38 -03:00
parent 57cf79b79b
commit 8ddb90d2e5
1 changed files with 11 additions and 0 deletions
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11
drivers/media/dvb-core/dvbdev.c
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@ -441,6 +441,7 @@ void dvb_create_media_graph(struct dvb_adapter *adap)
struct media_device *mdev = adap->mdev;
struct media_entity *entity, *tuner = NULL, *fe = NULL;
struct media_entity *demux = NULL, *dvr = NULL, *ca = NULL;
struct media_interface *intf;
if (!mdev)
return;
@ -476,6 +477,16 @@ void dvb_create_media_graph(struct dvb_adapter *adap)
if (demux && ca)
media_create_pad_link(demux, 1, ca, 0, MEDIA_LNK_FL_ENABLED);
/* Create indirect interface links for FE->tuner, DVR->demux and CA->ca */
list_for_each_entry(intf, &mdev->interfaces, list) {
if (intf->type == MEDIA_INTF_T_DVB_CA && ca)
media_create_intf_link(ca, intf, 0);
if (intf->type == MEDIA_INTF_T_DVB_FE && tuner)
media_create_intf_link(tuner, intf, 0);
if (intf->type == MEDIA_INTF_T_DVB_DVR && demux)
media_create_intf_link(demux, intf, 0);
}
}
EXPORT_SYMBOL_GPL(dvb_create_media_graph);
#endif