1 /*
2  * videobuf2-dma-sg.h - DMA scatter/gather memory allocator for videobuf2
3  *
4  * Copyright (C) 2010 Samsung Electronics
5  *
6  * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
7  *
8  * This program is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License as published by
10  * the Free Software Foundation.
11  */
12 
13 #ifndef _MEDIA_VIDEOBUF2_DMA_SG_H
14 #define _MEDIA_VIDEOBUF2_DMA_SG_H
15 
16 #include <media/videobuf2-core.h>
17 
18 static inline struct sg_table *vb2_dma_sg_plane_desc(
19 		struct vb2_buffer *vb, unsigned int plane_no)
20 {
21 	return (struct sg_table *)vb2_plane_cookie(vb, plane_no);
22 }
23 
24 void *vb2_dma_sg_init_ctx(struct device *dev);
25 void vb2_dma_sg_cleanup_ctx(void *alloc_ctx);
26 
27 extern const struct vb2_mem_ops vb2_dma_sg_memops;
28 
29 #endif
30