include/media/media-request.h

127  * object in it. A reference to the request must be held during the update. This
240  * struct media_request_object_ops - Media request object operations
241  * @prepare: Validate and prepare the request object, optional.
242  * @unprepare: Unprepare the request object, optional.
243  * @queue: Queue the request object, optional.
244  * @unbind: Unbind the request object, optional.
245  * @release: Release the request object, required.
248 	int (*prepare)(struct media_request_object *object);
249 	void (*unprepare)(struct media_request_object *object);
250 	void (*queue)(struct media_request_object *object);
251 	void (*unbind)(struct media_request_object *object);
252 	void (*release)(struct media_request_object *object);
256  * struct media_request_object - An opaque object that belongs to a media
259  * @ops: object's operations
260  * @priv: object's priv pointer
261  * @req: the request this object belongs to (can be NULL)
262  * @list: List entry of the object for @struct media_request
263  * @kref: Reference count of the object, acquire before releasing req->lock
264  * @completed: If true, then this object was completed.
266  * An object related to the request. This struct is always embedded in
267  * another struct that contains the actual data for this request object.
281  * media_request_object_get - Get a media request object
283  * @obj: The object
285  * Get a media request object.
293  * media_request_object_put - Put a media request object
295  * @obj: The object
297  * Put a media request object. Once all references are gone, the
298  * object's memory is released.
303  * media_request_object_find - Find an object in a request
306  * @ops: Find an object with this ops value
307  * @priv: Find an object with this priv value
311  * Returns the object pointer or NULL if not found. The caller must
312  * call media_request_object_put() once it finished using the object.
323  * media_request_object_init - Initialise a media request object
325  * @obj: The object
327  * Initialise a media request object. The object will be released using the
334  * media_request_object_bind - Bind a media request object to a request
337  * @ops: The object ops for this object
338  * @priv: A driver-specific priv pointer associated with this object
339  * @is_buffer: Set to true if the object a buffer object.
340  * @obj: The object
342  * Bind this object to the request and set the ops and priv values of
343  * the object so it can be found later with media_request_object_find().
345  * Every bound object must be unbound or completed by the kernel at some
350  * Buffer objects will be added to the end of the request's object
362  * media_request_object_unbind - Unbind a media request object
364  * @obj: The object
366  * Unbind the media request object from the request.
371  * media_request_object_complete - Mark the media request object as complete
373  * @obj: The object
375  * Mark the media request object as complete. Only bound objects can