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/*
 * linux/arch/unicore32/include/mach/dma.h
 *
 * Code specific to PKUnity SoC and UniCore ISA
 *
 * Copyright (C) 2001-2010 GUAN Xue-tao
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */
#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__ */

Filemanager

Name Type Size Permission Actions
PKUnity.h File 3.86 KB 0644
bitfield.h File 710 B 0644
dma.h File 1.03 KB 0644
hardware.h File 943 B 0644
map.h File 532 B 0644
memory.h File 1.67 KB 0644
ocd.h File 720 B 0644
pm.h File 986 B 0644
regs-ac97.h File 1.09 KB 0644
regs-dmac.h File 2.66 KB 0644
regs-gpio.h File 2.25 KB 0644
regs-i2c.h File 1.65 KB 0644
regs-intc.h File 610 B 0644
regs-nand.h File 1.71 KB 0644
regs-ost.h File 1.73 KB 0644
regs-pci.h File 3.93 KB 0644
regs-pm.h File 3.53 KB 0644
regs-ps2.h File 446 B 0644
regs-resetc.h File 591 B 0644
regs-rtc.h File 733 B 0644
regs-sdc.h File 3.55 KB 0644
regs-spi.h File 2.05 KB 0644
regs-uart.h File 79 B 0644
regs-umal.h File 6.34 KB 0644
regs-unigfx.h File 4.67 KB 0644
uncompress.h File 729 B 0644