diff options
| author | Shuah Khan <shuahkh@osg.samsung.com> | 2016-02-11 21:41:34 -0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2016-02-27 09:15:34 -0300 |
| commit | f90c5d79e5156e523a6bd560b7da76e842992229 (patch) | |
| tree | 546cced57cdd616d1a37c6c5f0143951a6248323 /drivers/media/usb/au0828 | |
| parent | b176965176abe4ef560c2e9c14332031bcf37254 (diff) | |
[media] media: au0828-core register entity_notify hook
Register entity_notify async hook to create links between existing
bridge driver entities and a newly added non-bridge driver entities. For
example, this handler creates link between V4L decoder entity and ALSA
mixer entity.
[mchehab@osg.samsung.com: fix merge conflicts and make
au0828_media_graph_notify static to shut up a warning]
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/usb/au0828')
| -rw-r--r-- | drivers/media/usb/au0828/au0828-core.c | 45 | ||||
| -rw-r--r-- | drivers/media/usb/au0828/au0828.h | 1 |
2 files changed, 44 insertions, 2 deletions
diff --git a/drivers/media/usb/au0828/au0828-core.c b/drivers/media/usb/au0828/au0828-core.c index cafe57f37e3d..4ec7c573b5f1 100644 --- a/drivers/media/usb/au0828/au0828-core.c +++ b/drivers/media/usb/au0828/au0828-core.c @@ -20,6 +20,7 @@ */ #include "au0828.h" +#include "au8522.h" #include <linux/module.h> #include <linux/slab.h> @@ -204,14 +205,43 @@ static int au0828_media_device_init(struct au0828_dev *dev, return 0; } +static void au0828_media_graph_notify(struct media_entity *new, + void *notify_data) +{ +#ifdef CONFIG_MEDIA_CONTROLLER + struct au0828_dev *dev = (struct au0828_dev *) notify_data; + int ret; + + if (!dev->decoder) + return; + + switch (new->function) { + case MEDIA_ENT_F_AUDIO_MIXER: + ret = media_create_pad_link(dev->decoder, + AU8522_PAD_AUDIO_OUT, + new, 0, + MEDIA_LNK_FL_ENABLED); + if (ret) + dev_err(&dev->usbdev->dev, + "Mixer Pad Link Create Error: %d\n", + ret); + break; + default: + break; + } +#endif +} + static int au0828_media_device_register(struct au0828_dev *dev, struct usb_device *udev) { #ifdef CONFIG_MEDIA_CONTROLLER int ret; - if (dev->media_dev && - !media_devnode_is_registered(&dev->media_dev->devnode)) { + if (!dev->media_dev) + return 0; + + if (!media_devnode_is_registered(&dev->media_dev->devnode)) { /* register media device */ ret = media_device_register(dev->media_dev); @@ -221,6 +251,17 @@ static int au0828_media_device_register(struct au0828_dev *dev, return ret; } } + /* register entity_notify callback */ + dev->entity_notify.notify_data = (void *) dev; + dev->entity_notify.notify = (void *) au0828_media_graph_notify; + ret = media_device_register_entity_notify(dev->media_dev, + &dev->entity_notify); + if (ret) { + dev_err(&udev->dev, + "Media Device register entity_notify Error: %d\n", + ret); + return ret; + } #endif return 0; } diff --git a/drivers/media/usb/au0828/au0828.h b/drivers/media/usb/au0828/au0828.h index 23f869cf11da..c2801b2a545d 100644 --- a/drivers/media/usb/au0828/au0828.h +++ b/drivers/media/usb/au0828/au0828.h @@ -282,6 +282,7 @@ struct au0828_dev { struct media_entity *decoder; struct media_entity input_ent[AU0828_MAX_INPUT]; struct media_pad input_pad[AU0828_MAX_INPUT]; + struct media_entity_notify entity_notify; #endif }; |