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 */