2 * videobuf2-dma-sg.h - DMA scatter/gather memory allocator for videobuf2
4 * Copyright (C) 2010 Samsung Electronics
6 * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
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.
13 #ifndef _MEDIA_VIDEOBUF2_DMA_SG_H
14 #define _MEDIA_VIDEOBUF2_DMA_SG_H
16 #include <media/videobuf2-core.h>
18 struct vb2_dma_sg_desc {
20 unsigned int num_pages;
21 struct scatterlist *sglist;
24 static inline struct vb2_dma_sg_desc *vb2_dma_sg_plane_desc(
25 struct vb2_buffer *vb, unsigned int plane_no)
27 return (struct vb2_dma_sg_desc *)vb2_plane_cookie(vb, plane_no);
30 extern const struct vb2_mem_ops vb2_dma_sg_memops;