| Pawel Osciak | 1a758d4 | 2010-10-11 10:59:36 -0300 | [diff] [blame] | 1 | /* |
| 2 | * videobuf2-dma-coherent.h - DMA coherent memory allocator for videobuf2 |
| 3 | * |
| 4 | * Copyright (C) 2010 Samsung Electronics |
| 5 | * |
| Pawel Osciak | 9507208 | 2011-03-13 15:23:32 -0300 | [diff] [blame] | 6 | * Author: Pawel Osciak <pawel@osciak.com> |
| Pawel Osciak | 1a758d4 | 2010-10-11 10:59:36 -0300 | [diff] [blame] | 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_COHERENT_H |
| 14 | #define _MEDIA_VIDEOBUF2_DMA_COHERENT_H |
| 15 | |
| 16 | #include <media/videobuf2-core.h> |
| Pawel Osciak | 472af2b | 2011-03-14 10:38:24 -0300 | [diff] [blame] | 17 | #include <linux/dma-mapping.h> |
| Pawel Osciak | 1a758d4 | 2010-10-11 10:59:36 -0300 | [diff] [blame] | 18 | |
| Pawel Osciak | 472af2b | 2011-03-14 10:38:24 -0300 | [diff] [blame] | 19 | static inline dma_addr_t |
| 20 | vb2_dma_contig_plane_paddr(struct vb2_buffer *vb, unsigned int plane_no) |
| Pawel Osciak | 1a758d4 | 2010-10-11 10:59:36 -0300 | [diff] [blame] | 21 | { |
| Pawel Osciak | 472af2b | 2011-03-14 10:38:24 -0300 | [diff] [blame] | 22 | dma_addr_t *paddr = vb2_plane_cookie(vb, plane_no); |
| 23 | |
| 24 | return *paddr; |
| Pawel Osciak | 1a758d4 | 2010-10-11 10:59:36 -0300 | [diff] [blame] | 25 | } |
| 26 | |
| 27 | void *vb2_dma_contig_init_ctx(struct device *dev); |
| 28 | void vb2_dma_contig_cleanup_ctx(void *alloc_ctx); |
| 29 | |
| 30 | extern const struct vb2_mem_ops vb2_dma_contig_memops; |
| 31 | |
| 32 | #endif |