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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 |
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