mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
30 lines
909 B
30 lines
909 B
/* SPDX-License-Identifier: GPL-2.0-only */ |
|
/* |
|
* 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 |
|
*/ |
|
#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 */
|
|
|