isa.h revision 720
1/*- 2 * Copyright (c) 1990 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * William Jolitz. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * from: @(#)isa.h 5.7 (Berkeley) 5/9/91 37 * $Id: isa.h,v 1.2 1993/10/16 13:45:57 rgrimes Exp $ 38 */ 39 40#ifndef _I386_ISA_ISA_H_ 41#define _I386_ISA_ISA_H_ 1 42 43/* 44 * ISA Bus conventions 45 */ 46 47#ifndef LOCORE 48#include <sys/cdefs.h> 49 50unsigned char rtcin __P((int)); 51extern unsigned int atdevbase; /* offset in virtual memory of ISA io mem */ 52void sysbeep __P((int, int)); 53unsigned kbd_8042cmd __P((int)); 54struct isa_device; 55int isa_irq_pending __P((struct isa_device *dvp)); 56#endif 57 58 59/* 60 * Input / Output Port Assignments 61 */ 62 63#ifndef IO_BEGIN 64#define IO_ISABEGIN 0x000 /* 0x000 - Beginning of I/O Registers */ 65 66 /* CPU Board */ 67#define IO_DMA1 0x000 /* 8237A DMA Controller #1 */ 68#define IO_ICU1 0x020 /* 8259A Interrupt Controller #1 */ 69#define IO_TIMER1 0x040 /* 8252 Timer #1 */ 70#define IO_TIMER2 0x048 /* 8252 Timer #2 */ 71#define IO_KBD 0x060 /* 8042 Keyboard */ 72#define IO_RTC 0x070 /* RTC */ 73#define IO_NMI IO_RTC /* NMI Control */ 74#define IO_DMAPG 0x080 /* DMA Page Registers */ 75#define IO_ICU2 0x0A0 /* 8259A Interrupt Controller #2 */ 76#define IO_DMA2 0x0C0 /* 8237A DMA Controller #2 */ 77#define IO_NPX 0x0F0 /* Numeric Coprocessor */ 78 79 /* Cards */ 80 /* 0x100 - 0x16F Open */ 81 82#define IO_WD2 0x170 /* Secondary Fixed Disk Controller */ 83 84 /* 0x178 - 0x1EF Open */ 85 86#define IO_WD1 0x1f0 /* Primary Fixed Disk Controller */ 87#define IO_GAME 0x200 /* Game Controller */ 88 89 /* 0x208 - 0x277 Open */ 90 91#define IO_LPT2 0x278 /* Parallel Port #2 */ 92 93 /* 0x280 - 0x2E7 Open */ 94 95#define IO_COM4 0x2e8 /* COM4 i/o address */ 96 97 /* 0x2F0 - 0x2F7 Open */ 98 99#define IO_COM2 0x2f8 /* COM2 i/o address */ 100 /* 0x300 - 0x32F Open */ 101 102#define IO_BT0 0x330 /* bustek 742a default addr. */ 103#define IO_AHA0 0x330 /* adaptec 1542 default addr. */ 104#define IO_UHA0 0x330 /* ultrastore 14f default addr. */ 105#define IO_BT1 0x334 /* bustek 742a default addr. */ 106#define IO_AHA1 0x334 /* adaptec 1542 default addr. */ 107 /* 0x338 - 0x36F Open */ 108 109#define IO_FD2 0x370 /* secondary base i/o address */ 110#define IO_LPT1 0x378 /* Parallel Port #1 */ 111 112 /* 0x380 - 0x3AF Open */ 113 114#define IO_MDA 0x3B0 /* Monochome Adapter */ 115#define IO_LPT3 0x3BC /* Monochome Adapter Printer Port */ 116#define IO_VGA 0x3C0 /* E/VGA Ports */ 117#define IO_CGA 0x3D0 /* CGA Ports */ 118 119 /* 0x3E0 - 0x3E7 Open */ 120 121#define IO_COM3 0x3e8 /* COM3 i/o address */ 122#define IO_FD1 0x3f0 /* primary base i/o address */ 123#define IO_COM1 0x3f8 /* COM1 i/o address */ 124 125#define IO_ISAEND 0x3FF /* - 0x3FF End of I/O Registers */ 126#endif IO_ISABEGIN 127 128/* 129 * Input / Output Port Sizes - these are from several sources, and tend 130 * to be the larger of what was found, ie COM ports can be 4, but some 131 * boards do not fully decode the address, thus 8 ports are used. 132 */ 133 134#ifndef IO_ISASIZES 135#define IO_ISASIZES 136 137#define IO_COMSIZE 8 /* 8250, 16X50 com controllers (4?) */ 138#define IO_CGASIZE 16 /* CGA controllers */ 139#define IO_DMASIZE 16 /* 8237 DMA controllers */ 140#define IO_DPGSIZE 32 /* 74LS612 DMA page reisters */ 141#define IO_FDCSIZE 8 /* Nec765 floppy controllers */ 142#define IO_WDCSIZE 8 /* WD compatible disk controllers */ 143#define IO_GAMSIZE 16 /* AT compatible game controllers */ 144#define IO_ICUSIZE 16 /* 8259A interrupt controllers */ 145#define IO_KBDSIZE 16 /* 8042 Keyboard controllers */ 146#define IO_LPTSIZE 8 /* LPT controllers, some use only 4 */ 147#define IO_MDASIZE 16 /* Monochrome display controllers */ 148#define IO_RTCSIZE 16 /* CMOS real time clock, NMI control */ 149#define IO_TMRSIZE 16 /* 8253 programmable timers */ 150#define IO_NPXSIZE 16 /* 80387/80487 NPX registers */ 151#define IO_VGASIZE 16 /* VGA controllers */ 152 153#endif /* IO_ISASIZES */ 154 155/* 156 * Input / Output Memory Physical Addresses 157 */ 158 159#ifndef IOM_BEGIN 160#define IOM_BEGIN 0x0a0000 /* Start of I/O Memory "hole" */ 161#define IOM_END 0x100000 /* End of I/O Memory "hole" */ 162#define IOM_SIZE (IOM_END - IOM_BEGIN) 163#endif IOM_BEGIN 164 165/* 166 * RAM Physical Address Space (ignoring the above mentioned "hole") 167 */ 168 169#ifndef RAM_BEGIN 170#define RAM_BEGIN 0x0000000 /* Start of RAM Memory */ 171#define RAM_END 0x1000000 /* End of RAM Memory */ 172#define RAM_SIZE (RAM_END - RAM_BEGIN) 173#endif RAM_BEGIN 174 175/* 176 * Oddball Physical Memory Addresses 177 */ 178#ifndef COMPAQ_RAMRELOC 179#define COMPAQ_RAMRELOC 0x80c00000 /* Compaq RAM relocation/diag */ 180#define COMPAQ_RAMSETUP 0x80c00002 /* Compaq RAM setup */ 181#define WEITEK_FPU 0xC0000000 /* WTL 2167 */ 182#define CYRIX_EMC 0xC0000000 /* Cyrix EMC */ 183#endif COMPAQ_RAMRELOC 184#endif /* _I386_ISA_ISA_H_ */ 185