LXR linux/include/linux/dma-direction.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef _LINUX_DMA_DIRECTION_H
   3#define _LINUX_DMA_DIRECTION_H
   4
   5enum dma_data_direction {
   6        DMA_BIDIRECTIONAL = 0,
   7        DMA_TO_DEVICE = 1,
   8        DMA_FROM_DEVICE = 2,
   9        DMA_NONE = 3,
  10};
  11
  12static inline int valid_dma_direction(enum dma_data_direction dir)
  13{
  14        return dir == DMA_BIDIRECTIONAL || dir == DMA_TO_DEVICE ||
  15                dir == DMA_FROM_DEVICE;
  16}
  17
  18#endif /* _LINUX_DMA_DIRECTION_H */
  19