| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
|---|---|
| 2 | #ifndef _LINUX_DMA_DIRECTION_H |
| 3 | #define _LINUX_DMA_DIRECTION_H |
| 4 | |
| 5 | enum dma_data_direction { |
| 6 | DMA_BIDIRECTIONAL = 0, |
| 7 | DMA_TO_DEVICE = 1, |
| 8 | DMA_FROM_DEVICE = 2, |
| 9 | DMA_NONE = 3, |
| 10 | }; |
| 11 | |
| 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 */ |
| 19 |