videobuf2-dma-sg.h 790 B

1234567891011121314151617181920212223242526272829
  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-v4l2.h>
  15. static inline struct sg_table *vb2_dma_sg_plane_desc(
  16. struct vb2_buffer *vb, unsigned int plane_no)
  17. {
  18. return (struct sg_table *)vb2_plane_cookie(vb, plane_no);
  19. }
  20. void *vb2_dma_sg_init_ctx(struct device *dev);
  21. void vb2_dma_sg_cleanup_ctx(void *alloc_ctx);
  22. extern const struct vb2_mem_ops vb2_dma_sg_memops;
  23. #endif