checkpatch: struct seq_operations should normally be const
[linux-2.6/mini2440.git] / include / media / videobuf-vmalloc.h
blobe87222c6a12505e47475c5064ea92091a1ec5783
1 /*
2 * helper functions for vmalloc capture buffers
4 * The functions expect the hardware being able to scatter gather
5 * (i.e. the buffers are not linear in physical memory, but fragmented
6 * into PAGE_SIZE chunks). They also assume the driver does not need
7 * to touch the video data.
9 * (c) 2007 Mauro Carvalho Chehab, <mchehab@infradead.org>
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2
15 #ifndef _VIDEOBUF_VMALLOC_H
16 #define _VIDEOBUF_VMALLOC_H
18 #include <media/videobuf-core.h>
20 /* --------------------------------------------------------------------- */
22 struct videobuf_vmalloc_memory
24 u32 magic;
26 void *vmalloc;
28 /* remap_vmalloc_range seems to need to run after mmap() on some cases */
29 struct vm_area_struct *vma;
32 void videobuf_queue_vmalloc_init(struct videobuf_queue* q,
33 struct videobuf_queue_ops *ops,
34 void *dev,
35 spinlock_t *irqlock,
36 enum v4l2_buf_type type,
37 enum v4l2_field field,
38 unsigned int msize,
39 void *priv);
41 void *videobuf_to_vmalloc (struct videobuf_buffer *buf);
43 void videobuf_vmalloc_free (struct videobuf_buffer *buf);
45 #endif