| Pawel Osciak | 1a758d4 | 2010-10-11 10:59:36 -0300 | [diff] [blame] | 1 | /* |
| Albert Wang | 86b0905 | 2012-06-07 05:42:24 -0300 | [diff] [blame] | 2 | * videobuf2-dma-contig.h - DMA contig memory allocator for videobuf2 |
| Pawel Osciak | 1a758d4 | 2010-10-11 10:59:36 -0300 | [diff] [blame] | 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 | |
| Albert Wang | 86b0905 | 2012-06-07 05:42:24 -0300 | [diff] [blame] | 13 | #ifndef _MEDIA_VIDEOBUF2_DMA_CONTIG_H |
| 14 | #define _MEDIA_VIDEOBUF2_DMA_CONTIG_H |
| Pawel Osciak | 1a758d4 | 2010-10-11 10:59:36 -0300 | [diff] [blame] | 15 | |
| Junghak Sung | c139990 | 2015-09-22 10:30:29 -0300 | [diff] [blame] | 16 | #include <media/videobuf2-v4l2.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 | |
| Tomasz Figa | ccc66e7 | 2016-02-01 22:34:42 +0100 | [diff] [blame] | 19 | struct dma_attrs; |
| 20 | |
| Pawel Osciak | 472af2b | 2011-03-14 10:38:24 -0300 | [diff] [blame] | 21 | static inline dma_addr_t |
| Marek Szyprowski | ba7fcb0 | 2011-08-29 03:20:56 -0300 | [diff] [blame] | 22 | vb2_dma_contig_plane_dma_addr(struct vb2_buffer *vb, unsigned int plane_no) |
| Pawel Osciak | 1a758d4 | 2010-10-11 10:59:36 -0300 | [diff] [blame] | 23 | { |
| Marek Szyprowski | ba7fcb0 | 2011-08-29 03:20:56 -0300 | [diff] [blame] | 24 | dma_addr_t *addr = vb2_plane_cookie(vb, plane_no); |
| Pawel Osciak | 472af2b | 2011-03-14 10:38:24 -0300 | [diff] [blame] | 25 | |
| Marek Szyprowski | ba7fcb0 | 2011-08-29 03:20:56 -0300 | [diff] [blame] | 26 | return *addr; |
| Pawel Osciak | 1a758d4 | 2010-10-11 10:59:36 -0300 | [diff] [blame] | 27 | } |
| 28 | |
| Tomasz Figa | ccc66e7 | 2016-02-01 22:34:42 +0100 | [diff] [blame] | 29 | void *vb2_dma_contig_init_ctx_attrs(struct device *dev, |
| 30 | struct dma_attrs *attrs); |
| 31 | |
| 32 | static inline void *vb2_dma_contig_init_ctx(struct device *dev) |
| 33 | { |
| 34 | return vb2_dma_contig_init_ctx_attrs(dev, NULL); |
| 35 | } |
| 36 | |
| Pawel Osciak | 1a758d4 | 2010-10-11 10:59:36 -0300 | [diff] [blame] | 37 | void vb2_dma_contig_cleanup_ctx(void *alloc_ctx); |
| Marek Szyprowski | 3f03396 | 2016-05-24 09:16:06 +0200 | [diff] [blame^] | 38 | int vb2_dma_contig_set_max_seg_size(struct device *dev, unsigned int size); |
| 39 | void vb2_dma_contig_clear_max_seg_size(struct device *dev); |
| Pawel Osciak | 1a758d4 | 2010-10-11 10:59:36 -0300 | [diff] [blame] | 40 | |
| 41 | extern const struct vb2_mem_ops vb2_dma_contig_memops; |
| 42 | |
| 43 | #endif |