projects / mirror_ubuntu-zesty-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 004cc378 MS |
1 | /* |
| 2 | * videobuf2-memops.h - generic memory handling routines for videobuf2 | |
| 3 | * | |
| 4 | * Copyright (C) 2010 Samsung Electronics | |
| 5 | * | |
| 95072084 | 6 | * Author: Pawel Osciak <pawel@osciak.com> |
| 004cc378 MS |
7 | * Marek Szyprowski <m.szyprowski@samsung.com> |
| 8 | * | |
| 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. | |
| 12 | */ | |
| 13 | ||
| 14 | #ifndef _MEDIA_VIDEOBUF2_MEMOPS_H | |
| 15 | #define _MEDIA_VIDEOBUF2_MEMOPS_H | |
| 16 | ||
| c139990e | 17 | #include <media/videobuf2-v4l2.h> |
| 21fb0cb7 | 18 | #include <linux/mm.h> |
| 004cc378 MS |
19 | |
| 20 | /** | |
| b6836a6f MCC |
21 | * struct vb2_vmarea_handler - common vma refcount tracking handler |
| 22 | * | |
| 004cc378 MS |
23 | * @refcount: pointer to refcount entry in the buffer |
| 24 | * @put: callback to function that decreases buffer refcount | |
| 25 | * @arg: argument for @put callback | |
| 26 | */ | |
| 27 | struct vb2_vmarea_handler { | |
| 28 | atomic_t *refcount; | |
| 29 | void (*put)(void *arg); | |
| 30 | void *arg; | |
| 31 | }; | |
| 32 | ||
| 33 | extern const struct vm_operations_struct vb2_common_vm_ops; | |
| 34 | ||
| 21fb0cb7 JK |
35 | struct frame_vector *vb2_create_framevec(unsigned long start, |
| 36 | unsigned long length, | |
| 37 | bool write); | |
| 38 | void vb2_destroy_framevec(struct frame_vector *vec); | |
| 004cc378 MS |
39 | |
| 40 | #endif |