| /* |
| * videobuf2-dma-contig.h - DMA contig memory allocator for videobuf2 |
| * |
| * Copyright (C) 2010 Samsung Electronics |
| * |
| * Author: Pawel Osciak <pawel@osciak.com> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation. |
| */ |
| |
| #ifndef _MEDIA_VIDEOBUF2_DMA_CONTIG_H |
| #define _MEDIA_VIDEOBUF2_DMA_CONTIG_H |
| |
| #include <media/videobuf2-v4l2.h> |
| #include <linux/dma-mapping.h> |
| |
| struct dma_attrs; |
| |
| static inline dma_addr_t |
| vb2_dma_contig_plane_dma_addr(struct vb2_buffer *vb, unsigned int plane_no) |
| { |
| dma_addr_t *addr = vb2_plane_cookie(vb, plane_no); |
| |
| return *addr; |
| } |
| |
| void *vb2_dma_contig_init_ctx_attrs(struct device *dev, |
| struct dma_attrs *attrs); |
| |
| static inline void *vb2_dma_contig_init_ctx(struct device *dev) |
| { |
| return vb2_dma_contig_init_ctx_attrs(dev, NULL); |
| } |
| |
| void vb2_dma_contig_cleanup_ctx(void *alloc_ctx); |
| |
| extern const struct vb2_mem_ops vb2_dma_contig_memops; |
| |
| #endif |
