at91_aic.h

基于ARM7微控制器AT91X40开发板的定时器程序

/*
 * at91_aic.h
 * 
 * author: Kexin ([e-mail]) Tel:[phone]
 * date:   2007-11-22	
 */

#ifndef __AT91_AIC_H
#define __AT91_AIC_H

#define AT91_AIC_BASE  0xfffff000

#define AIC_SMR(i) (AT91_AIC_BASE+i*4)
#define AIC_IVR    (AT91_AIC_BASE+0x100)
#define AIC_FVR    (AT91_AIC_BASE+0x104)
#define AIC_ISR    (AT91_AIC_BASE+0x108)
#define AIC_IPR    (AT91_AIC_BASE+0x10c)
#define AIC_IMR    (AT91_AIC_BASE+0x110)
#define AIC_CISR   (AT91_AIC_BASE+0x114)
#define AIC_IECR   (AT91_AIC_BASE+0x120)
#define AIC_IDCR   (AT91_AIC_BASE+0x124)
#define AIC_ICCR   (AT91_AIC_BASE+0x128)
#define AIC_ISCR   (AT91_AIC_BASE+0x12C)
#define AIC_EOICR  (AT91_AIC_BASE+0x130)

#define EdgeTriggered  (1<<5)

void at91_mask_irq(unsigned int irq);

void at91_unmask_irq(unsigned int irq);

void at91_mask_ack_irq(unsigned int irq);

int at91_request_irq(unsigned int irq_num,void *irq_isr);

int at91_release_irq(unsigned int irq_num);

void at91_init_aic(void);


#endif __AT91_AIC_H