irq.c

人机界面程序

#define __IRQ_C
#include "irq.h"
#include "define.h"
#include "display.h"
#include "P103_MMI2DSP.H"
#include "maindef.h"

#define  SECOND  100

/*0:FIQ,1:SWIRQ,2:US0IRQ,3:US1IRQ,4:TC0IRQ,5:TC1IRQ,6:TC2IRQ,7:WDIRQ,8:PIOIRQ, 16:IRQ0,17:IRQ1,18:IRQ2 */

typedef void (* FunctionPtr)();


const unsigned char RegOffset[12]={0x00,0x04,0x08,0x0c,0x10,0x14,0x18,0x1c,0x20,0x40,0x44,0x48};
const unsigned char SMRValue[12]={0x60,0x60,0x60,0x60,0x65,0x60,0x60,0x60,0x60,0x60,0x60,0x60};

const FunctionPtr HandlerArray[12]={
		FIQ_Handler,SWIRQ_Handler,
		US0IRQ_Handler,US1IRQ_Handler,
		TC0IRQ_Handler,TC1IRQ_Handler,TC2IRQ_Handler,
		WDIRQ_Handler,PIOIRQ_Handler,
		IRQ0IRQ_Handler,IRQ1IRQ_Handler,IRQ2IRQ_Handler
};

US usT_1000ms=0;
UC  ucsigned_1000ms_flag=0;
UC ucsigned_60s=0;
US ucsigned_60s_Count=0;

extern UC time_modify_flag;

void EnableIRQ(void) 
{
 	int tmp;
 	__asm
 	{
 		mrs		tmp,CPSR
 		bic		tmp,tmp,#0x80
 		msr		CPSR_c,tmp			// use CPSR_c instead of CPSR for ADS1.2
 	}
}
 
// enable the F bit in current CPSR
void EnableFIQ(void)
{
	int tmp;
	__asm
	{
		mrs		tmp,CPSR	
		bic 	tmp,tmp,#0x40
		msr		CPSR_c,tmp
	}
}

// disable the I bit in current CPSR
void DisableIRQ(void)
{
 	int tmp;
 	__asm
 	{
 		mrs		tmp,CPSR
 		orr		tmp,tmp,#0x80
 		msr		CPSR_c,tmp
 	}
}

// enable the F bit in current CPSR
void DisableFIQ(void)
{
	int tmp;
	__asm
	{
		mrs		tmp,CPSR	
		orr 		tmp,tmp,#0x40
		msr		CPSR_c,tmp
	}
}

void Delay(unsigned int count)
{
  unsigned int i, j;
  
  for(i = 0; i < count; i++)
  	for(j = 0; j < 1650; j++);
}



void C_Undefined_Handler(void)
{
	while(1);
}

void C_Prefetch_Handler(void)
{
	while(1);
}

void C_Abort_Handler(void)
{
	while(1);
}

void C_FIQ_Handler(void)
{
	while(1);
	REG32_WRITE(AIC_EOICR,0x1);
}

void C_SWIRQ_Handler(void)
{
	while(1);
	REG32_WRITE(AIC_EOICR,0x1);
}

void C_US0IRQ_Handler(void)	//Sci0_Int
{
	REG32_WRITE(AIC_EOICR,0x1);
}

//串口1中断
void C_US1IRQ_Handler(void)
{
	REG32_WRITE(AIC_EOICR,0x1);
}

void C_TC0IRQ_Handler(void)
{
	
//	while(1);
	unsigned int i;
/*中断计时*/
WATCHDOG_OUT0;
if(time_modify_flag==0)
{
	usT_1000ms++;
	if( usT_1000ms >= 3*SECOND )   //  3秒
   		{	 usT_1000ms=0;ucsigned_60s_Count++; 
			ucsigned_1000ms_flag=1; 
		}

 	if( ucsigned_60s_Count>= 100 ) /*5min*/
  		 {
   			 ucsigned_60s_Count=0; ucsigned_60s=1;
   			
   		}
}
	WATCHDOG_OUT1;
	Updata_key(RdPortE32(PIO_PDSR));
	CommDspTimeUpdate();
	WATCHDOG_OUT0;
	i=REG32_READ(TC0+TCSR);
	REG32_WRITE(AIC_EOICR,0x1);
}

void C_TC1IRQ_Handler(void)
{
	unsigned int i;

	i=REG32_READ(TC1+TCSR);
	REG32_WRITE(AIC_EOICR,0x1);
}

void C_TC2IRQ_Handler(void)
{
	while(1);
	REG32_WRITE(AIC_EOICR,0x1);
}

void C_WDIRQ_Handler(void)	//Watch Dog Interrupt
{
	REG32_WRITE(AIC_EOICR,0x1);
}

void C_PIOIRQ_Handler(void)
{
	while(1);
	REG32_WRITE(AIC_EOICR,0x1);
}

void C_IRQ0IRQ_Handler(void)
{
	while(1);
	REG32_WRITE(AIC_EOICR,0x1);
}

void C_IRQ1IRQ_Handler(void)
{
	while(1);
	REG32_WRITE(AIC_EOICR,0x1);
}

void C_IRQ2IRQ_Handler(void)
{
	while(1);
	REG32_WRITE(AIC_EOICR,0x1);
}

//中断初始化
void Interrupt_Init(void)
{
	int i;
	i=REG32_READ(AIC_IPR);
	REG32_WRITE(AIC_EOICR,0x1);
	
	REG32_WRITE(AIC_IDCR,0xFFFFFFFF);
	REG32_WRITE(AIC_ICCR,0xFFFFFFFF);
	for(i=0;i<12;i++){
		REG32_WRITE(AIC_SMR0+RegOffset[i],SMRValue[i]);
		REG32_WRITE(AIC_SVR0+RegOffset[i],(unsigned int)(HandlerArray[i]));
	}
}

//参数为EnumInitKind类型
void Interrupt_Enable(EnumIntKind IntKind)
{
	REG32_WRITE(AIC_IECR,IntKind);
}

void Interrupt_Disable(EnumIntKind IntKind)
{
	REG32_WRITE(AIC_IDCR,IntKind);
}