at91_timer.h

基于ARM7微控制器AT91X40开发板的定时器程序

/*
 * at91_timer.h
 * 
 * author: Kexin ([e-mail]) Tel:[phone]
 * date:   2007-11-22	
 */
#ifndef __AT91_TIMER_H
#define __AT91_TIMER_H

#define AT91_TC_BASE  0xfffe0000

struct at91_timer_channel
{
  unsigned long ccr;
  unsigned long cmr;
  unsigned long reserved[2];
  unsigned long cv;
  unsigned long ra;
  unsigned long rb;
  unsigned long rc;
  unsigned long sr;
  unsigned long ier;
  unsigned long idr;
  unsigned long imr;
};

struct at91_timers
{
  struct{
    struct at91_timer_channel ch;
    unsigned char padding[0x40-sizeof(struct at91_timer_channel)];
}chans[3];
unsigned long bcr;
unsigned long bmr;
};

typedef struct 
{
	unsigned int TimerNum;
	unsigned long CycleTime;
	void (*irq_svr)(void);
}at91_timer_param;

int at91_set_timer(at91_timer_param param);
int at91_del_timer(unsigned char TimerNum);

#endif __AT91_TIMER_H