[linux.git] / include / media / videobuf2-dma-sg.h

/*
 * videobuf2-dma-sg.h - DMA scatter/gather memory allocator for videobuf2
 *
 * Copyright (C) 2010 Samsung Electronics
 *
 * Author: Andrzej Pietrasiewicz <[email protected]>
 *
 * 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_DMA_SG_H
#define _MEDIA_VIDEOBUF2_DMA_SG_H

#include <media/videobuf2-core.h>

struct vb2_dma_sg_desc {
	unsigned long		size;
	unsigned int		num_pages;
	struct scatterlist	*sglist;
};

static inline struct vb2_dma_sg_desc *vb2_dma_sg_plane_desc(
		struct vb2_buffer *vb, unsigned int plane_no)
{
	return (struct vb2_dma_sg_desc *)vb2_plane_cookie(vb, plane_no);
}

extern const struct vb2_mem_ops vb2_dma_sg_memops;

#endif
Commit	Line	Data
5ba3f757 AP	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 <[email protected]>
	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	struct vb2_dma_sg_desc {
	19	unsigned long size;
	20	unsigned int num_pages;
	21	struct scatterlist *sglist;
	22	};
	23
	24	static inline struct vb2_dma_sg_desc *vb2_dma_sg_plane_desc(
	25	struct vb2_buffer *vb, unsigned int plane_no)
	26	{
	27	return (struct vb2_dma_sg_desc *)vb2_plane_cookie(vb, plane_no);
	28	}
	29
	30	extern const struct vb2_mem_ops vb2_dma_sg_memops;
	31
	32	#endif