videobuf2-dma-sg.h 816 B

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  1. /*
  2. * videobuf2-dma-sg.h - DMA scatter/gather memory allocator for videobuf2
  3. *
  4. * Copyright (C) 2010 Samsung Electronics
  5. *
  6. * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
  7. *
  8. * This program is free software; you can redistribute it and/or modify
  9. * it under the terms of the GNU General Public License as published by
  10. * the Free Software Foundation.
  11. */
  12. #ifndef _MEDIA_VIDEOBUF2_DMA_SG_H
  13. #define _MEDIA_VIDEOBUF2_DMA_SG_H
  14. #include <media/videobuf2-core.h>
  15. struct vb2_dma_sg_desc {
  16. unsigned long size;
  17. unsigned int num_pages;
  18. struct scatterlist *sglist;
  19. };
  20. static inline struct vb2_dma_sg_desc *vb2_dma_sg_plane_desc(
  21. struct vb2_buffer *vb, unsigned int plane_no)
  22. {
  23. return (struct vb2_dma_sg_desc *)vb2_plane_cookie(vb, plane_no);
  24. }
  25. extern const struct vb2_mem_ops vb2_dma_sg_memops;
  26. #endif