Contributors: 2
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Guan Xuetao |
137 |
98.56% |
2 |
66.67% |
| Thomas Gleixner |
2 |
1.44% |
1 |
33.33% |
| Total |
139 |
|
3 |
|
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* linux/arch/unicore32/include/mach/dma.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*/
#ifndef __MACH_PUV3_DMA_H__
#define __MACH_PUV3_DMA_H__
/*
* The PKUnity has six internal DMA channels.
*/
#define MAX_DMA_CHANNELS 6
typedef enum {
DMA_PRIO_HIGH = 0,
DMA_PRIO_MEDIUM = 1,
DMA_PRIO_LOW = 2
} puv3_dma_prio;
/*
* DMA registration
*/
extern int puv3_request_dma(char *name,
puv3_dma_prio prio,
void (*irq_handler)(int, void *),
void (*err_handler)(int, void *),
void *data);
extern void puv3_free_dma(int dma_ch);
static inline void puv3_stop_dma(int ch)
{
writel(readl(DMAC_CONFIG(ch)) & ~DMAC_CONFIG_EN, DMAC_CONFIG(ch));
}
static inline void puv3_resume_dma(int ch)
{
writel(readl(DMAC_CONFIG(ch)) | DMAC_CONFIG_EN, DMAC_CONFIG(ch));
}
#endif /* __MACH_PUV3_DMA_H__ */