We want to represent the links between the several DVB devnodes,
so let's create PADs for them.
The DVB net devnode is a different matter, as it is not related
to the media stream, but with network. So, at least for now, let's
not add any pad for it.
Signed-off-by: Mauro Carvalho Chehab <mche...@osg.samsung.com>
diff --git a/drivers/media/dvb-core/dvbdev.c b/drivers/media/dvb-core/dvbdev.c
index d975cbb29705..1071d31b7f1d 100644
--- a/drivers/media/dvb-core/dvbdev.c
+++ b/drivers/media/dvb-core/dvbdev.c
@@ -184,7 +184,7 @@ static void dvb_register_media_device(struct dvb_device
*dvbdev,
int type, int minor)
{
#if defined(CONFIG_MEDIA_CONTROLLER)
- int ret;
+ int ret = 0, npads;
if (!dvbdev->adapter->mdev)
return;
@@ -196,18 +196,46 @@ static void dvb_register_media_device(struct dvb_device
*dvbdev,
dvbdev->entity->info.dvb.major = DVB_MAJOR;
dvbdev->entity->info.dvb.minor = minor;
dvbdev->entity->name = dvbdev->name;
+
+ switch(type) {
+ case DVB_DEVICE_CA:
+ case DVB_DEVICE_DEMUX:
+ npads = 2;
+ break;
+ case DVB_DEVICE_NET:
+ npads = 0;
+ break;
+ default:
+ npads = 1;
+ }
+
+ if (npads) {
+ dvbdev->pads = kcalloc(npads, sizeof(*dvbdev->pads),
+ GFP_KERNEL);
+ if (!dvbdev->pads) {
+ kfree(dvbdev->entity);
+ return;
+ }
+ }
+
switch(type) {
case DVB_DEVICE_FRONTEND:
dvbdev->entity->type = MEDIA_ENT_T_DEVNODE_DVB_FE;
+ dvbdev->pads[0].flags = MEDIA_PAD_FL_SOURCE;
break;
case DVB_DEVICE_DEMUX:
dvbdev->entity->type = MEDIA_ENT_T_DEVNODE_DVB_DEMUX;
+ dvbdev->pads[0].flags = MEDIA_PAD_FL_SOURCE;
+ dvbdev->pads[1].flags = MEDIA_PAD_FL_SINK;
break;
case DVB_DEVICE_DVR:
dvbdev->entity->type = MEDIA_ENT_T_DEVNODE_DVB_DVR;
+ dvbdev->pads[0].flags = MEDIA_PAD_FL_SINK;
break;
case DVB_DEVICE_CA:
dvbdev->entity->type = MEDIA_ENT_T_DEVNODE_DVB_CA;
+ dvbdev->pads[0].flags = MEDIA_PAD_FL_SOURCE;
+ dvbdev->pads[1].flags = MEDIA_PAD_FL_SINK;
break;
case DVB_DEVICE_NET:
dvbdev->entity->type = MEDIA_ENT_T_DEVNODE_DVB_NET;
@@ -218,11 +246,16 @@ static void dvb_register_media_device(struct dvb_device
*dvbdev,
return;
}
- ret = media_device_register_entity(dvbdev->adapter->mdev,
dvbdev->entity);
+ if (npads)
+ ret = media_entity_init(dvbdev->entity, npads, dvbdev->pads, 0);
+ if (!ret)
+ ret = media_device_register_entity(dvbdev->adapter->mdev,
+ dvbdev->entity);
if (ret < 0) {
printk(KERN_ERR
"%s: media_device_register_entity failed for %s\n",
__func__, dvbdev->entity->name);
+ kfree(dvbdev->pads);
kfree(dvbdev->entity);
dvbdev->entity = NULL;
return;
@@ -335,6 +368,7 @@ void dvb_unregister_device(struct dvb_device *dvbdev)
if (dvbdev->entity) {
media_device_unregister_entity(dvbdev->entity);
kfree(dvbdev->entity);
+ kfree(dvbdev->pads);
}
#endif
diff --git a/drivers/media/dvb-core/dvbdev.h b/drivers/media/dvb-core/dvbdev.h
index ace8575975d8..c037c2ff9f5a 100644
--- a/drivers/media/dvb-core/dvbdev.h
+++ b/drivers/media/dvb-core/dvbdev.h
@@ -101,8 +101,9 @@ struct dvb_device {
#if defined(CONFIG_MEDIA_CONTROLLER)
const char *name;
- /* Filled inside dvbdev.c */
+ /* Allocated and filled inside dvbdev.c */
struct media_entity *entity;
+ struct media_pad *pads;
#endif
void *priv;
--
2.1.0
--
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