Source to i386/isa/isa.h
/*-
* Copyright (c) 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* William Jolitz.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)isa.h 8.1 (Berkeley) 6/11/93
*/
/*
* ISA Bus conventions
*/
#ifndef LOCORE
unsigned char inb(), rtcin();
void outb();
#endif
/*
* Input / Output Port Assignments
*/
#ifndef IO_BEGIN
#define IO_ISABEGIN 0x000 /* 0x000 - Beginning of I/O Registers */
/* CPU Board */
#define IO_DMA1 0x000 /* 8237A DMA Controller #1 */
#define IO_ICU1 0x020 /* 8259A Interrupt Controller #1 */
#define IO_TIMER1 0x040 /* 8252 Timer #1 */
#define IO_TIMER2 0x048 /* 8252 Timer #2 */
#define IO_KBD 0x060 /* 8042 Keyboard */
#define IO_RTC 0x070 /* RTC */
#define IO_NMI IO_RTC /* NMI Control */
#define IO_DMAPG 0x080 /* DMA Page Registers */
#define IO_ICU2 0x0A0 /* 8259A Interrupt Controller #2 */
#define IO_DMA2 0x0C0 /* 8237A DMA Controller #2 */
#define IO_NPX 0x0F0 /* Numeric Coprocessor */
/* Cards */
/* 0x100 - 0x16F Open */
#define IO_WD2 0x170 /* Secondary Fixed Disk Controller */
/* 0x178 - 0x1EF Open */
#define IO_WD1 0x1f0 /* Primary Fixed Disk Controller */
#define IO_GAME 0x200 /* Game Controller */
/* 0x208 - 0x277 Open */
#define IO_LPT2 0x278 /* Parallel Port #2 */
/* 0x280 - 0x2F7 Open */
#define IO_COM2 0x2f8 /* COM2 i/o address */
/* 0x300 - 0x36F Open */
#define IO_FD2 0x370 /* secondary base i/o address */
#define IO_LPT1 0x378 /* Parallel Port #1 */
/* 0x380 - 0x3AF Open */
#define IO_MDA 0x3B0 /* Monochome Adapter */
#define IO_LPT3 0x3BC /* Monochome Adapter Printer Port */
#define IO_VGA 0x3C0 /* E/VGA Ports */
#define IO_CGA 0x3D0 /* CGA Ports */
/* 0x3E0 - 0x3EF Open */
#define IO_FD1 0x3f0 /* primary base i/o address */
#define IO_COM1 0x3f8 /* COM1 i/o address */
#define IO_ISAEND 0x3FF /* - 0x3FF End of I/O Registers */
#endif IO_ISABEGIN
/*
* Input / Output Memory Physical Addresses
*/
#ifndef IOM_BEGIN
#define IOM_BEGIN 0xa0000 /* Start of I/O Memory "hole" */
#define IOM_END 0xFFFFF /* End of I/O Memory "hole" */
#endif IOM_BEGIN
/*
* RAM Physical Address Space (ignoring the above mentioned "hole")
*/
#ifndef RAM_BEGIN
#define RAM_BEGIN 0x000000 /* Start of RAM Memory */
#define RAM_END 0xFFFFFF /* End of RAM Memory */
#endif IOM_BEGIN
/*
* Oddball Physical Memory Addresses
*/
#ifndef COMPAQ_RAMRELOC
#define COMPAQ_RAMRELOC 0x80c00000 /* Compaq RAM relocation/diag */
#define COMPAQ_RAMSETUP 0x80c00002 /* Compaq RAM setup */
#define WEITEK_FPU 0xC0000000 /* WTL 2167 */
#define CYRIX_EMC 0xC0000000 /* Cyrix EMC */
#endif COMPAQ_RAMRELOC