1 /* 2 * videobuf2-dma-contig.h - DMA contig memory allocator for videobuf2 3 * 4 * Copyright (C) 2010 Samsung Electronics 5 * 6 * Author: Pawel Osciak <pawel@osciak.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_CONTIG_H 14 #define _MEDIA_VIDEOBUF2_DMA_CONTIG_H 15 16 #include <media/videobuf2-v4l2.h> 17 #include <linux/dma-mapping.h> 18 19 static inline dma_addr_t 20 vb2_dma_contig_plane_dma_addr(struct vb2_buffer *vb, unsigned int plane_no) 21 { 22 dma_addr_t *addr = vb2_plane_cookie(vb, plane_no); 23 24 return *addr; 25 } 26 27 int vb2_dma_contig_set_max_seg_size(struct device *dev, unsigned int size); 28 void vb2_dma_contig_clear_max_seg_size(struct device *dev); 29 30 extern const struct vb2_mem_ops vb2_dma_contig_memops; 31 32 #endif 33