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 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 33