sys_irq.c

Taiwan sunplus develop spce3200, it is a test program ----- testboard source code

//====================================================================================
//File Name:	Sys_IRQ.c
//Description:	Dispatch 40 hardware interrupt sources of SPCE3200; 
//				Handle software interrupts.
//				Note that this file needn't be modified in your application.
//Update:		2007.01.11 V1.0 by hongyan.Feng
//====================================================================================

//=====================================================================================
//Declare the external interrupt service routines user defined
//=====================================================================================
extern void IRQ63(void);
extern void IRQ62(void);
extern void IRQ61(void);
extern void IRQ60(void);
extern void IRQ59(void);
extern void IRQ58(void);
extern void IRQ57(void);
extern void IRQ56(void);
extern void IRQ55(void);
extern void IRQ54(void);
extern void IRQ53(void);
extern void IRQ52(void);
extern void IRQ51(void);
extern void IRQ50(void);
extern void IRQ49(void);
extern void IRQ48(void);
extern void IRQ47(void);
extern void IRQ46(void);
extern void IRQ45(void);
extern void IRQ44(void);
extern void IRQ43(void);
extern void IRQ42(void);
extern void IRQ41(void);
extern void IRQ40(void);
extern void IRQ39(void);
extern void IRQ38(void);
extern void IRQ37(void);
extern void IRQ36(void);
extern void IRQ35(void);
extern void IRQ34(void);
extern void IRQ33(void);
extern void IRQ32(void);
extern void IRQ31(void);
extern void IRQ30(void);
extern void IRQ29(void);
extern void IRQ28(void);
extern void IRQ27(void);
extern void IRQ26(void);
extern void IRQ25(void);
extern void IRQ24(void);

//====================================================
// Prototype:			void intmsg(void)
// Description:			Handler for software interrupts and the hardware interrupts 
//						of S+core processor, except 40 hardware interrupts of SPCE3200.
// Input Arguments:		None
// Output Arguments:	None
//====================================================
void intmsg(void)
{
	while(1);
}

//====================================================
// Prototype:			void irq_dispatch(unsigned int cp0_cause)
// Description:			Get interrupt vector number of one of 40 SPCE3200 hardware 
//						interrupts, then call related service routine according to 
//						the number.
// Input Arguments:		cp0_cause - value in S+core processor register 'cr2'.
//						Where, bit[23:18] is the interrupt vector 
//						number of one of 63 hardware interrupts. 
// Output Arguments:	None
//====================================================
void irq_dispatch(unsigned int cp0_cause)
{
	int intvec=0;

	intvec = (cp0_cause & 0x00FC0000)>>18;
									//Get interrupt vector number
	switch (intvec)
	{
		case 63:					//DAC interrupt
	   		IRQ63();
			break;
		case 62:					//Reserved
	   		IRQ62();
			break;
		case 61:					//Reserved
	   		IRQ61();
			break;
		case 60:					//Reserved
	   		IRQ60();
			break;
		case 59:					//MIC overflow interrupt
	   		IRQ59();
			break;
		case 58:					//ADC interrupt
	   		IRQ58();
			break;
		case 57:					//TMB interrupt
	   		IRQ57();
			break;
		case 56:
			IRQ56();				//Timer interrupt
			break;
		case 55:
			IRQ55(); 				//TV vblanking start interrupt
			break;
		case 54:
			IRQ54();				//LCD vblanking start interrupt
			break;
		case 53:
			IRQ53();				//Reserved
			break;
 		case 52: 					//Light Gun interrupt
			IRQ52();
			break;
		case 51:					//CSI frame end interrupt
	   		IRQ51();
			break;
		case 50:					//CSI coordinate hit interrupt
	   		IRQ50();
			break;
		case 49:					//CSI motion frame end interrupt
	  	 	IRQ49();
			break;
		case 48:					//CSI capture done interrupt
	   		IRQ48();
			break;
		case 47:					//TV coordinate hit interrupt
	   		IRQ47();
			break;
		case 46:					//Reserved
	   		IRQ46();
			break;
		case 45:					//USB host+device interrupt
	   		IRQ45();
			break;
		case 44:					//SIO interrupt
	   		IRQ44();
			break;
		case 43:					//SPI interrupt
	   		IRQ43();
			break;
		case 42:					//UART interrupt
	   		IRQ42();
			break;
		case 41:					//Nand interrupt
	   		IRQ41();
			break;
		case 40:					//SD interrupt
	  	 	IRQ40();
			break;
		case 39:					//I2C interrupt
			IRQ39();
			break;
		case 38:					//I2S interrupt
			IRQ38();
			break;
		case 37:					//APBDMA CH1 interrupt
			IRQ37();
			break;
		case 36:					//APBDMA CH2 interrupt
			IRQ36();
			break;
		case 35:					//LDM DMA interrupt
			IRQ35();
			break;
		case 34:					//BIN DMA interrupt
			IRQ34();
			break;
		case 33:					//APBDMA CH3 interrupt
			IRQ33();
			break;
		case 32:					//APBDMA CH4 interrupt
			IRQ32();
			break;
		case 31:					//RTC interrupt
			IRQ31();
			break;
		case 30:					//MP4 interrupt
			IRQ30();
			break;
 		case 29:					//C3--ECC Module interrupt
	   		IRQ29();
			break;
 		case 28:					//GPIO interrupt
	  	 	IRQ28();
			break;
 		case 27:					//BUFCTL and TVvblanking end interrupt
	  	 	IRQ27();
			break;
 		case 26:					//Reserved
	  	 	IRQ26();
			break;
 		case 25:					//Reserved
	  	 	IRQ25();
			break;
 		case 24:					//Reserved
	  	 	IRQ24();
	  	 	break;
		default:
			break;
	}
	return;
}