1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | #ifndef _PXA_DMA_H_ |
3 | #define _PXA_DMA_H_ |
4 | |
5 | enum pxad_chan_prio { |
6 | PXAD_PRIO_HIGHEST = 0, |
7 | PXAD_PRIO_NORMAL, |
8 | PXAD_PRIO_LOW, |
9 | PXAD_PRIO_LOWEST, |
10 | }; |
11 | |
12 | /** |
13 | * struct pxad_param - dma channel request parameters |
14 | * @drcmr: requestor line number |
15 | * @prio: minimal mandatory priority of the channel |
16 | * |
17 | * If a requested channel is granted, its priority will be at least @prio, |
18 | * ie. if PXAD_PRIO_LOW is required, the requested channel will be either |
19 | * PXAD_PRIO_LOW, PXAD_PRIO_NORMAL or PXAD_PRIO_HIGHEST. |
20 | */ |
21 | struct pxad_param { |
22 | unsigned int drcmr; |
23 | enum pxad_chan_prio prio; |
24 | }; |
25 | |
26 | #endif /* _PXA_DMA_H_ */ |
27 | |