[linux-block.git] / include / linux / dma-direction.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_DMA_DIRECTION_H
#define _LINUX_DMA_DIRECTION_H

enum dma_data_direction {
	DMA_BIDIRECTIONAL = 0,
	DMA_TO_DEVICE = 1,
	DMA_FROM_DEVICE = 2,
	DMA_NONE = 3,
};

static inline int valid_dma_direction(enum dma_data_direction dir)
{
	return dir == DMA_BIDIRECTIONAL || dir == DMA_TO_DEVICE ||
		dir == DMA_FROM_DEVICE;
}

#endif /* _LINUX_DMA_DIRECTION_H */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
b7f080cf AD	2	#ifndef _LINUX_DMA_DIRECTION_H
b7f080cf AD	3	#define _LINUX_DMA_DIRECTION_H
546c596c	4
b7f080cf AD	5	enum dma_data_direction {
	6	DMA_BIDIRECTIONAL = 0,
	7	DMA_TO_DEVICE = 1,
	8	DMA_FROM_DEVICE = 2,
	9	DMA_NONE = 3,
	10	};
546c596c	11
db4268f8 CH	12	static 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 */