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-v4l2.h> 17 vb2_dma_sg_plane_desc(struct vb2_buffer * vb,unsigned int plane_no)18static 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