videobuf2-memops.h

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/*
 * videobuf2-memops.h - generic memory handling routines for videobuf2
 *
 * Copyright (C) 2010 Samsung Electronics
 *
 * Author: Pawel Osciak <[email protected]>
 *     Marek Szyprowski <[email protected]>
 *
 * 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.
 */

#ifndef _MEDIA_VIDEOBUF2_MEMOPS_H
#define _MEDIA_VIDEOBUF2_MEMOPS_H

#include <media/videobuf2-core.h>

struct vb2_vmarea_handler {
    atomic_t        *refcount;
    void            (*put)(void *arg);
    void            *arg;
};

extern const struct vm_operations_struct vb2_common_vm_ops;

int vb2_get_contig_userptr(unsigned long vaddr, unsigned long size,
               struct vm_area_struct **res_vma, dma_addr_t *res_pa);

int vb2_mmap_pfn_range(struct vm_area_struct *vma, unsigned long paddr,
                unsigned long size,
                const struct vm_operations_struct *vm_ops,
                void *priv);

struct vm_area_struct *vb2_get_vma(struct vm_area_struct *vma);
void vb2_put_vma(struct vm_area_struct *vma);


#endif