2 * videobuf2-memops.h - generic memory handling routines for videobuf2
4 * Copyright (C) 2010 Samsung Electronics
6 * Author: Pawel Osciak <pawel@osciak.com>
7 * Marek Szyprowski <m.szyprowski@samsung.com>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation.
14 #ifndef _MEDIA_VIDEOBUF2_MEMOPS_H
15 #define _MEDIA_VIDEOBUF2_MEMOPS_H
17 #include <media/videobuf2-v4l2.h>
19 #include <linux/refcount.h>
22 * struct vb2_vmarea_handler - common vma refcount tracking handler
24 * @refcount: pointer to refcount entry in the buffer
25 * @put: callback to function that decreases buffer refcount
26 * @arg: argument for @put callback
28 struct vb2_vmarea_handler {
30 void (*put)(void *arg);
34 extern const struct vm_operations_struct vb2_common_vm_ops;
36 struct frame_vector *vb2_create_framevec(unsigned long start,
39 void vb2_destroy_framevec(struct frame_vector *vec);