1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * videobuf2-dma-contig.h - DMA contig memory allocator for videobuf2 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * Copyright (C) 2010 Samsung Electronics 5*4882a593Smuzhiyun * 6*4882a593Smuzhiyun * Author: Pawel Osciak <pawel@osciak.com> 7*4882a593Smuzhiyun * 8*4882a593Smuzhiyun * This program is free software; you can redistribute it and/or modify 9*4882a593Smuzhiyun * it under the terms of the GNU General Public License as published by 10*4882a593Smuzhiyun * the Free Software Foundation. 11*4882a593Smuzhiyun */ 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun #ifndef _MEDIA_VIDEOBUF2_DMA_CONTIG_H 14*4882a593Smuzhiyun #define _MEDIA_VIDEOBUF2_DMA_CONTIG_H 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun #include <media/videobuf2-v4l2.h> 17*4882a593Smuzhiyun #include <linux/dma-mapping.h> 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun static inline dma_addr_t vb2_dma_contig_plane_dma_addr(struct vb2_buffer * vb,unsigned int plane_no)20*4882a593Smuzhiyunvb2_dma_contig_plane_dma_addr(struct vb2_buffer *vb, unsigned int plane_no) 21*4882a593Smuzhiyun { 22*4882a593Smuzhiyun dma_addr_t *addr = vb2_plane_cookie(vb, plane_no); 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun return *addr; 25*4882a593Smuzhiyun } 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun int vb2_dma_contig_set_max_seg_size(struct device *dev, unsigned int size); vb2_dma_contig_clear_max_seg_size(struct device * dev)28*4882a593Smuzhiyunstatic inline void vb2_dma_contig_clear_max_seg_size(struct device *dev) { } 29*4882a593Smuzhiyun 30*4882a593Smuzhiyun extern const struct vb2_mem_ops vb2_dma_contig_memops; 31*4882a593Smuzhiyun 32*4882a593Smuzhiyun #endif 33