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Scratch / lockwasher / src / sys / include / isa / 8259.h
/**************************************************************************************
 Copyright (c) 2002 The UbixOS Project
 All rights reserved.

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 $Id: 8259.h,v 1.2 2003/03/13 00:29:44 apwillia Exp $

**************************************************************************************/

#ifndef _8259_H
#define _8259_H

#define mPic    0x20 /* I/O for master PIC      */
#define mImr    0x21 /* I/O for master IMR      */
#define sPic    0xA0 /* I/O for slave PIC       */
#define sImr    0xA1 /* I/O for slace IMR       */
#define eoi     0x20 /* EOI command             */
#define icw1    0x11 /* Cascade, Edge triggered */
#define icw4    0x01 /* 8088 mode               */
#define mVec    0x68 /* Vector for master       */
#define sVec    0x70 /* Vector for slave        */
#define ocw3Irr 0x0A /* Read IRR                */
#define ocw3Isr 0x0B /* Read ISR                */

void init8259();
void enableIrq(unsigned short irqNo);
void disableIrq(unsigned short irqNo);

#endif