redonkable/alistair23-linux
redonkable/alistair23-linux
1
0
Fork 0
Code Releases Activity

[media] cx231xx: create media links for analog mode

Browse source 
Now that we have entities and pads, let's create media links
between them, for analog setup.

We may not have all the links for digital yet, as the dvb extention
may not be loaded yet.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Mauro Carvalho Chehab 2015-01-03 15:22:26 -03:00
parent b6a40e7280
commit d35a9855a8
1 changed files with 38 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

38
drivers/media/usb/cx231xx/cx231xx-cards.c
View file

@ -1159,6 +1159,42 @@ static void cx231xx_media_device_register(struct cx231xx *dev,
#endif
}
static void cx231xx_create_media_graph(struct cx231xx *dev)
{
#ifdef CONFIG_MEDIA_CONTROLLER
struct media_device *mdev = dev->media_dev;
struct media_entity *entity;
struct media_entity *tuner = NULL, *decoder = 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_V4L2_SUBDEV_DECODER:
decoder = entity;
break;
}
}
/* Analog setup, using tuner as a link */
if (!decoder)
return;
if (tuner)
media_entity_create_link(tuner, 0, decoder, 0,
MEDIA_LNK_FL_ENABLED);
media_entity_create_link(decoder, 1, &dev->vdev->entity, 0,
MEDIA_LNK_FL_ENABLED);
media_entity_create_link(decoder, 2, &dev->vbi_dev->entity, 0,
MEDIA_LNK_FL_ENABLED);
#endif
}
/*
* cx231xx_init_dev()
* allocates and inits the device structs, registers i2c bus and v4l device
@ -1616,6 +1652,8 @@ static int cx231xx_usb_probe(struct usb_interface *interface,
/* load other modules required */
request_modules(dev);
cx231xx_create_media_graph(dev);
return 0;
err_video_alt:
/* cx231xx_uninit_dev: */