xref: /linux/include/media/videobuf2-dma-contig.h (revision 4b4193256c8d3bc3a5397b5cd9494c2ad386317d)
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
vb2_dma_contig_plane_dma_addr(struct vb2_buffer * vb,unsigned int plane_no)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);
vb2_dma_contig_clear_max_seg_size(struct device * dev)28 static inline 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