38 lines
837 B
C
38 lines
837 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _PXA_DMA_H_
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#define _PXA_DMA_H_
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enum pxad_chan_prio {
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PXAD_PRIO_HIGHEST = 0,
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PXAD_PRIO_NORMAL,
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PXAD_PRIO_LOW,
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PXAD_PRIO_LOWEST,
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};
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/**
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* struct pxad_param - dma channel request parameters
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* @drcmr: requestor line number
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* @prio: minimal mandatory priority of the channel
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*
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* If a requested channel is granted, its priority will be at least @prio,
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* ie. if PXAD_PRIO_LOW is required, the requested channel will be either
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* PXAD_PRIO_LOW, PXAD_PRIO_NORMAL or PXAD_PRIO_HIGHEST.
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*/
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struct pxad_param {
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unsigned int drcmr;
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enum pxad_chan_prio prio;
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};
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struct dma_chan;
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#ifdef CONFIG_PXA_DMA
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bool pxad_filter_fn(struct dma_chan *chan, void *param);
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#else
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static inline bool pxad_filter_fn(struct dma_chan *chan, void *param)
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{
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return false;
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}
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#endif
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#endif /* _PXA_DMA_H_ */
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