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| author | Ingo Molnar <mingo@elte.hu> | 2008-07-21 15:05:58 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-21 15:05:58 +0200 |
| commit | 1c29dd9a9e2f83ffb02e50bb3619c3b9db8fd526 (patch) | |
| tree | b5691dd5aa48ac32fdbaef44afcbcc92f01592d3 /include/media/videobuf-dma-contig.h | |
| parent | 32172561889868c0ea422ea8570f0413963a815f (diff) | |
| parent | 14b395e35d1afdd8019d11b92e28041fad591b71 (diff) | |
Merge branch 'linus' into x86/paravirt-spinlocks
Diffstat (limited to 'include/media/videobuf-dma-contig.h')
| -rw-r--r-- | include/media/videobuf-dma-contig.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/include/media/videobuf-dma-contig.h b/include/media/videobuf-dma-contig.h new file mode 100644 index 00000000000..549386681aa --- /dev/null +++ b/include/media/videobuf-dma-contig.h @@ -0,0 +1,32 @@ +/* + * helper functions for physically contiguous capture buffers + * + * The functions support hardware lacking scatter gather support + * (i.e. the buffers must be linear in physical memory) + * + * Copyright (c) 2008 Magnus Damm + * + * 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; either version 2 + */ +#ifndef _VIDEOBUF_DMA_CONTIG_H +#define _VIDEOBUF_DMA_CONTIG_H + +#include <linux/dma-mapping.h> +#include <media/videobuf-core.h> + +void videobuf_queue_dma_contig_init(struct videobuf_queue *q, + struct videobuf_queue_ops *ops, + struct device *dev, + spinlock_t *irqlock, + enum v4l2_buf_type type, + enum v4l2_field field, + unsigned int msize, + void *priv); + +dma_addr_t videobuf_to_dma_contig(struct videobuf_buffer *buf); +void videobuf_dma_contig_free(struct videobuf_queue *q, + struct videobuf_buffer *buf); + +#endif /* _VIDEOBUF_DMA_CONTIG_H */ |