interrupt.c

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//================================================================================
//
//	INTERRUPT.C - S3C2400 Interrupt Functions 
//
//	(C) Copyright 2003-3-19, ARM STUDY GROUP (Yoon Gwang-Yoon)
//      
//================================================================================
		
/*------------------------------------------------------------------------------*/
/*       INCLUDE LIST                                                   		*/
/*------------------------------------------------------------------------------*/
#include "REG_DEFINE.H"
#include "common.H"
		
/*------------------------------------------------------------------------------*/
/* 		ASSEM FUNCTION DEFINE LIST												*/
/*------------------------------------------------------------------------------*/
extern void enable_irq(void);
extern void disable_irq(void);

/*------------------------------------------------------------------------------*/
/*       DEFINE LIST                                                    		*/
/*------------------------------------------------------------------------------*/

/*------------------------------------------------------------------------------*/
/*      VARIABLE LIST                                                   		*/
/*------------------------------------------------------------------------------*/

/*------------------------------------------------------------------------------*/
/*      Function LIST                                                   		*/
/*------------------------------------------------------------------------------*/
void IRQInit(void);
void IRQEnable(dword IRQBit);
void IRQDisable(dword IRQBit);

/*------------------------------------------------------------------------------*/
/*		INTERRUPT 檬扁拳 FUNCTION												*/
/*------------------------------------------------------------------------------*/
void IRQInit(void)
{
    disable_irq();				//-- Assembler ARM IRQ Disable
	IRQDisable(BIT_ALLMSK);		//-- All IRQ Mask
	rINTMOD = 0x00000001;		//-- EINT0 FIQ MODE SET
    enable_irq();				//-- Assembler ARM IRQ Enable
}

/*------------------------------------------------------------------------------*/
/*		IRQ Interrupt Enable FUNCTION											*/
/*------------------------------------------------------------------------------*/
void IRQEnable(dword IRQBit)
{
	ClearPending(IRQBit);	//clear pending bit

    rINTMSK &= ~(IRQBit);
}

/*------------------------------------------------------------------------------*/
/*		IRQ Interrupt Enable FUNCTION											*/
/*------------------------------------------------------------------------------*/
void IRQDisable(dword IRQBit)
{
    rINTMSK |= (IRQBit);
}