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18 lines
407 B
18 lines
407 B
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef _LINUX_DMA_DIRECTION_H |
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#define _LINUX_DMA_DIRECTION_H |
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enum dma_data_direction { |
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DMA_BIDIRECTIONAL = 0, |
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DMA_TO_DEVICE = 1, |
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DMA_FROM_DEVICE = 2, |
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DMA_NONE = 3, |
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}; |
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static inline int valid_dma_direction(enum dma_data_direction dir) |
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{ |
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return dir == DMA_BIDIRECTIONAL || dir == DMA_TO_DEVICE || |
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dir == DMA_FROM_DEVICE; |
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} |
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#endif /* _LINUX_DMA_DIRECTION_H */
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