| 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 | |
|---|
