int_vec_handler.c

ARM嵌入式串口通信编程实例 pc机与arm的串口通信

/*************************************************************************************
*	Copyright (c) 2005 by National ASIC System Engineering Research Center.
*	PROPRIETARY RIGHTS of ASIC are involved in the subject matter of this 
*	material.  All manufacturing, reproduction, use, and sales rights 
*	pertaining to this subject matter are governed by the license agreement.
*	The recipient of this software implicitly accepts the terms of the license.
*
*	File Name: int_vec_handler.c
*
*	File Description:
*			The file includes three functions to initialize the lcd controller and
*		display some pictures on the lcd.
*
*
*	Created by Michael <[e-mail]>, 2005-03-22
**************************************************************************************/

#include "garfield.h"

INT_VECTOR vector[]={
					/* interrupt number,		handler */
					{	INT_NULL,				NULL		},
					{	INT_NULL,				NULL		},
					{	INT_EXT0,				NULL		},
                    {	INT_EXT1, 				NULL		},
                    {	INT_EXT2,				NULL		},
                    {	INT_EXT3,				NULL		},
                    {	INT_EXT4,				NULL		},
                    {	INT_EXT5,				NULL		},
                    {	INT_EXT6,				NULL		},
                    {	INT_EXT7, 				NULL		},
                    {	INT_EXT8, 				NULL		},
                    {	INT_EXT9, 				NULL		},
                    {	INT_EXT10, 				NULL		},
                    {	INT_EXT11, 				NULL		},
                    {	INT_EXT12, 				NULL		},
                    {	INT_EXT13, 				NULL		},
                    {	INT_EXT14, 				NULL		},
                    {	INT_NONE,				NULL		},
                    {	INT_EXT15,				NULL		},
                    {	INT_EXT16,				NULL		},
                    {	INT_EXT17,				NULL		},
                    {	INT_LCD,				NULL		},
                    {	INT_AC97,				NULL		},
                    {	INT_PWM,				NULL		},
                  	{	INT_UART1,				int_serv_uart0		},
                    {	INT_UART0,				int_serv_uart0		},
                    {	INT_MMC,				NULL		},
                    {	INT_SPI,				NULL		},
                    {	INT_USB,				NULL		},
                    {	INT_GPT,				NULL		},
                    {	INT_EMI,				NULL		},
					{	INT_DMA,				NULL		},
					{	INT_RTC,				NULL		},
			};

extern void int_vector_handler(void)
{
	U32	intnum;	
	U8	i = 0;

	intnum = *(RP)(INTC_IFSTAT);
	while(intnum != 0)
	{
		intnum = intnum>>1;
		i++;
	}
	(*vector[i].handler)();

	return;
}