intc.h

在ARM平台上开发的LCD驱动程序,具有很强的通用性.

/*************************************************************************************
*	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: intc.h
*
*	File Description:
*			The file define some macro definition used in some assembler file.
*		
*	Created by Michael <[e-mail]>, 2005-03-22
**************************************************************************************/

#ifndef INTC_H
#define INTC_H

#include "typedef.h"

/* definition of register address */
#define		 BASE_INTC			0x10000000

#define		 INTC_IEN			( BASE_INTC+0X0  )      //;IRQ中断允许寄存器
#define		 INTC_IMSK			( BASE_INTC+0X8  )      //;IRQ中断屏蔽寄存器
#define		 INTC_IFCE			( BASE_INTC+0X10 )      //;IRQ软件强制中断寄存器
#define		 INTC_IRSTAT		( BASE_INTC+0X18 )      //;IRQ未处理中断状态寄存器
#define		 INTC_ISTAT      	( BASE_INTC+0X20 )      //;IRQ中断状态寄存器
#define		 INTC_IMSTAT	    ( BASE_INTC+0X28 )      //;IRQ屏蔽中断状态寄存器
#define		 INTC_IFSTAT    	( BASE_INTC+0X30 )      //;IRQ中断最终状态寄存器
 
/* definition of interrupt handling */
#define set_plevel(plevel)		\
	*(RP)INTC_PLV =  plevel

#define set_int_force(intnum)		\
	*(RP)INTC_IFCE = (1 << intnum)
	
#define irq_enable(intnum)	\
	*(RP)INTC_IEN |= (1 << intnum)

#define irq_disable( intnum)	\
	*(RP)INTC_IEN &= ~(1<< intnum)
	
#define mask_irq(intnum)		\
	*(RP)INTC_IMSK |= (1 << intnum)
	
#define unmask_irq(intnum)	\
	*(RP)INTC_IMSK &= ~(1 << intnum)

#define mask_all_irq() 	\
	*(RP)INTC_IMSK = 0xFFFFFFFF

#define unmask_all_irq()		\
	*(RP)INTC_IMSK = 0x00000000

#define enable_all_irq()		\
	*(RP)INTC_IEN = 0XFFFFFFFF

#define disable_all_irq()	\
	*(RP)INTC_IEN = 0X00000000

#define INT_INIT()		do{mask_all_irq(); enable_all_irq();}while(0)

/* definition of vector struct for interrrupt */
typedef struct int_vector{
	U8		IntNum;
	void	(*handler)(void);
}INT_VECTOR;

/* declaration of function */
extern void int_vector_handler(void);

#endif