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Diffstat (limited to 'include/media/videobuf2-memops.h')
| -rw-r--r-- | include/media/videobuf2-memops.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/include/media/videobuf2-memops.h b/include/media/videobuf2-memops.h new file mode 100644 index 0000000000..4b5b84f935 --- /dev/null +++ b/include/media/videobuf2-memops.h @@ -0,0 +1,41 @@ +/* + * 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 |