diff options
Diffstat (limited to 'include/media/media-device.h')
| -rw-r--r-- | include/media/media-device.h | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/include/media/media-device.h b/include/media/media-device.h index 6a27d916c25..6e6db78f1ee 100644 --- a/include/media/media-device.h +++ b/include/media/media-device.h @@ -23,7 +23,6 @@ #ifndef _MEDIA_DEVICE_H #define _MEDIA_DEVICE_H -#include <linux/device.h> #include <linux/list.h> #include <linux/mutex.h> #include <linux/spinlock.h> @@ -31,6 +30,8 @@ #include <media/media-devnode.h> #include <media/media-entity.h> +struct device; + /** * struct media_device - Media device * @dev: Parent device @@ -44,6 +45,7 @@ * @entities: List of registered entities * @lock: Entities list lock * @graph_mutex: Entities graph operation lock + * @link_notify: Link state change notification callback * * This structure represents an abstract high-level media device. It allows easy * access to entities and provides basic media device-level support. The @@ -74,14 +76,20 @@ struct media_device { /* Serializes graph operations. */ struct mutex graph_mutex; - int (*link_notify)(struct media_pad *source, - struct media_pad *sink, u32 flags); + int (*link_notify)(struct media_link *link, u32 flags, + unsigned int notification); }; +/* Supported link_notify @notification values. */ +#define MEDIA_DEV_NOTIFY_PRE_LINK_CH 0 +#define MEDIA_DEV_NOTIFY_POST_LINK_CH 1 + /* media_devnode to media_device */ #define to_media_device(node) container_of(node, struct media_device, devnode) -int __must_check media_device_register(struct media_device *mdev); +int __must_check __media_device_register(struct media_device *mdev, + struct module *owner); +#define media_device_register(mdev) __media_device_register(mdev, THIS_MODULE) void media_device_unregister(struct media_device *mdev); int __must_check media_device_register_entity(struct media_device *mdev, |