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Viewing changes to include/media/videobuf2-memops.h

  • Committer: Bazaar Package Importer
  • Author(s): Paolo Pisati
  • Date: 2011-06-29 15:23:51 UTC
  • mfrom: (26.1.1 natty-proposed)
  • Revision ID: james.westby@ubuntu.com-20110629152351-xs96tm303d95rpbk
Tags: 3.0.0-1200.2
* Rebased against 3.0.0-6.7
* BSP from TI based on 3.0.0

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include/media/videobuf2-memops.h
 
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/*
 
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 * videobuf2-memops.h - generic memory handling routines for videobuf2
 
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 *
 
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 * Copyright (C) 2010 Samsung Electronics
 
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 *
 
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 * Author: Pawel Osciak <pawel@osciak.com>
 
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 *         Marek Szyprowski <m.szyprowski@samsung.com>
 
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 *
 
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 * This program is free software; you can redistribute it and/or modify
 
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 * it under the terms of the GNU General Public License as published by
 
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 * the Free Software Foundation.
 
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 */
 
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#ifndef _MEDIA_VIDEOBUF2_MEMOPS_H
 
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#define _MEDIA_VIDEOBUF2_MEMOPS_H
 
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#include <media/videobuf2-core.h>
 
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/**
 
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 * vb2_vmarea_handler - common vma refcount tracking handler
 
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 * @refcount:   pointer to refcount entry in the buffer
 
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 * @put:        callback to function that decreases buffer refcount
 
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 * @arg:        argument for @put callback
 
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 */
 
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struct vb2_vmarea_handler {
 
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        atomic_t                *refcount;
 
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        void                    (*put)(void *arg);
 
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        void                    *arg;
 
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};
 
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extern const struct vm_operations_struct vb2_common_vm_ops;
 
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int vb2_get_contig_userptr(unsigned long vaddr, unsigned long size,
 
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                           struct vm_area_struct **res_vma, dma_addr_t *res_pa);
 
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int vb2_mmap_pfn_range(struct vm_area_struct *vma, unsigned long paddr,
 
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                                unsigned long size,
 
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                                const struct vm_operations_struct *vm_ops,
 
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                                void *priv);
 
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struct vm_area_struct *vb2_get_vma(struct vm_area_struct *vma);
 
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void vb2_put_vma(struct vm_area_struct *vma);
 
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#endif