| /* |
| * 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, |
| const 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, |
| struct mutex *ext_lock); |
| |
| 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 */ |