/*    *  at91_tc.h   *  this file defines TC information on AT91X40  *  for Atmel AT91 timer counter * *  Bugs report:     li ming  ( lmcs00@mails.tsinghua.edu.cn ) *  Last modified:   2003-02-02  * */#ifndef __AT91_TC_H#define __AT91_TC_H/* always include this file for at91 peripherals */#include "at91.h"#include "at91_init.h"/* here define peripheral-specific hardware datastruct */#define AT91_TC_BASE		(0xfffe0000)struct at91_timer_channel{	unsigned long ccr;				// channel control register		(WO)	unsigned long cmr;				// channel mode register		(RW)	unsigned long reserved[2];			unsigned long cv;				// counter value				(RW)	unsigned long ra;				// register A					(RW)	unsigned long rb;				// register B					(RW)	unsigned long rc;				// register C					(RW)	unsigned long sr;				// status register				(RO)	unsigned long ier;				// interrupt enable register	(WO)	unsigned long idr;				// interrupt disable register	(WO)	unsigned long imr;				// interrupt mask register		(RO)};struct at91_timers{	struct {		struct at91_timer_channel ch;		unsigned char padding[0x40-sizeof(struct at91_timer_channel)];	} chans[3];	unsigned  long bcr;				// block control register		(WO)	unsigned  long bmr;				// block mode	 register		(RW)};#define ARM_CLK		(32768000)#define HZ 100/* 0=TC0, 1=TC1, 2=TC2 */#define KERNEL_TIMER 1	/*  TC control register */#define TC_SYNC	(1)/*  TC mode register */#define TC2XC2S(x)	(x & 0x3)#define TC1XC1S(x)	(x<<2 & 0xc)#define TC0XC0S(x)	(x<<4 & 0x30)#define TCNXCNS(timer,v) ((v) << (timer<<1))/* TC channel control */#define TC_CLKEN	(1)			#define TC_CLKDIS	(1<<1)			#define TC_SWTRG	(1<<2)			/* TC interrupts enable/disable/mask and status registers */#define TC_MTIOB	(1<<18)#define TC_MTIOA	(1<<17)#define TC_CLKSTA	(1<<16)#define TC_ETRGS	(1<<7)#define TC_LDRBS	(1<<6)#define TC_LDRAS	(1<<5)#define TC_CPCS		(1<<4)#define TC_CPBS		(1<<3)#define TC_CPAS		(1<<2)#define TC_LOVRS	(1<<1)#define TC_COVFS	(1)#define IRQ_TC0		4#define IRQ_TC1		5#define IRQ_TC2		6#if (KERNEL_TIMER==0)#   define KERNEL_TIMER_IRQ_NUM IRQ_TC0#elif (KERNEL_TIMER==1)#   define KERNEL_TIMER_IRQ_NUM IRQ_TC1#elif (KERNEL_TIMER==2)#   define KERNEL_TIMER_IRQ_NUM IRQ_TC2#else#error Wierd -- KERNEL_TIMER is not defined or something....#endifvoid at91_init_timer(void);#endif __AT91_TC_H