19 lines
407 B
C
19 lines
407 B
C
|
/* 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 */
|