/*
   * videobuf2-dma-coherent.h - DMA coherent memory allocator for videobuf2
   *
   * Copyright (C) 2010 Samsung Electronics
   *

   * Author: Pawel Osciak <pawel@osciak.com>

   *
   * 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_DMA_COHERENT_H
  #define _MEDIA_VIDEOBUF2_DMA_COHERENT_H
  
  #include <media/videobuf2-core.h>

  #include <linux/dma-mapping.h>

  static inline dma_addr_t

  vb2_dma_contig_plane_dma_addr(struct vb2_buffer *vb, unsigned int plane_no)

  {

  	dma_addr_t *addr = vb2_plane_cookie(vb, plane_no);

  	return *addr;

  }
  
  void *vb2_dma_contig_init_ctx(struct device *dev);
  void vb2_dma_contig_cleanup_ctx(void *alloc_ctx);
  
  extern const struct vb2_mem_ops vb2_dma_contig_memops;
  
  #endif