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