| /* |
| * videobuf2-memops.h - generic memory handling routines for videobuf2 |
| * |
| * Copyright (C) 2010 Samsung Electronics |
| * |
| * Author: Pawel Osciak <pawel@osciak.com> |
| * Marek Szyprowski <m.szyprowski@samsung.com> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation. |
| */ |
| |
| #ifndef _MEDIA_VIDEOBUF2_MEMOPS_H |
| #define _MEDIA_VIDEOBUF2_MEMOPS_H |
| |
| #include <media/videobuf2-v4l2.h> |
| #include <linux/mm.h> |
| #include <linux/refcount.h> |
| |
| /** |
| * struct vb2_vmarea_handler - common vma refcount tracking handler. |
| * |
| * @refcount: pointer to &refcount_t entry in the buffer. |
| * @put: callback to function that decreases buffer refcount. |
| * @arg: argument for @put callback. |
| */ |
| struct vb2_vmarea_handler { |
| refcount_t *refcount; |
| void (*put)(void *arg); |
| void *arg; |
| }; |
| |
| extern const struct vm_operations_struct vb2_common_vm_ops; |
| |
| struct frame_vector *vb2_create_framevec(unsigned long start, |
| unsigned long length, |
| bool write); |
| void vb2_destroy_framevec(struct frame_vector *vec); |
| |
| #endif |
