diff options
| author | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-01-03 07:59:53 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-02-14 02:10:14 +0300 |
| commit | 172e9d3c8840b6dd8141e491ee70392c42bbc635 (patch) | |
| tree | f6f21f0f7912fb3b47a4baea8cea31ca7f149f3d /drivers/media/dvb-core/dvbdev.c | |
| parent | e3d65c33e31db12856300cf8015428daae19245a (diff) | |
| download | linux-172e9d3c8840b6dd8141e491ee70392c42bbc635.tar.xz | |
[media] dvbdev: add pad for the DVB devnodes
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 <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/dvb-core/dvbdev.c')
| -rw-r--r-- | drivers/media/dvb-core/dvbdev.c | 39 |
1 files changed, 36 insertions, 3 deletions
diff --git a/drivers/media/dvb-core/dvbdev.c b/drivers/media/dvb-core/dvbdev.c index f98fd3b29afe..79c96edf71ef 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_DVB) - 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.dev.major = DVB_MAJOR; dvbdev->entity->info.dev.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; @@ -218,12 +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; @@ -336,6 +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 |