1 /* $NetBSD: isareg.h,v 1.11 2019/12/27 09:50:27 msaitoh Exp $ */ 2 3 /*- 4 * Copyright (c) 1990 The Regents of the University of California. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * William Jolitz. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)isa.h 5.7 (Berkeley) 5/9/91 35 */ 36 37 /* 38 * ISA Bus conventions 39 */ 40 41 /* 42 * Input / Output Port Assignments 43 */ 44 45 #ifndef IO_ISABEGIN 46 #define IO_ISABEGIN 0x000 /* 0x000 - Beginning of I/O Registers */ 47 48 /* CPU Board */ 49 #define IO_DMA1 0x000 /* 8237A DMA Controller #1 */ 50 #define IO_ICU1 0x020 /* 8259A Interrupt Controller #1 */ 51 #define IO_PMP1 0x026 /* 82347 Power Management Peripheral */ 52 #define IO_TIMER1 0x040 /* 8253 Timer #1 */ 53 #define IO_TIMER2 0x048 /* 8253 Timer #2 (EISA only) */ 54 #define IO_KBD 0x060 /* 8042 Keyboard */ 55 #define IO_PPI 0x061 /* Programmable Peripheral Interface */ 56 #define IO_RTC 0x070 /* RTC */ 57 #define IO_NMI IO_RTC /* NMI Control */ 58 #define IO_DMAPG 0x081 /* DMA Page Registers */ 59 #define IO_ICU2 0x0A0 /* 8259A Interrupt Controller #2 */ 60 #define IO_DMA2 0x0C0 /* 8237A DMA Controller #2 */ 61 #define IO_NPX 0x0F0 /* Numeric Coprocessor */ 62 63 /* Cards */ 64 /* 0x100 - 0x16F Open */ 65 66 #define IO_WD2 0x170 /* Secondary Fixed Disk Controller */ 67 #define IO_PMP2 0x178 /* 82347 Power Management Peripheral */ 68 69 /* 0x17A - 0x1EF Open */ 70 71 #define IO_WD1 0x1f0 /* Primary Fixed Disk Controller */ 72 #define IO_GAME 0x200 /* Game Controller */ 73 74 /* 0x208 - 0x237 Open */ 75 76 #define IO_BMS2 0x238 /* secondary InPort Bus Mouse */ 77 #define IO_BMS1 0x23c /* primary InPort Bus Mouse */ 78 79 /* 0x240 - 0x277 Open */ 80 81 #define IO_LPT2 0x278 /* Parallel Port #2 */ 82 83 /* 0x280 - 0x2E7 Open */ 84 85 #define IO_COM4 0x2e8 /* COM4 i/o address */ 86 87 /* 0x2F0 - 0x2F7 Open */ 88 89 #define IO_COM2 0x2f8 /* COM2 i/o address */ 90 91 /* 0x300 - 0x32F Open */ 92 93 #define IO_BT0 0x330 /* bustek 742a default addr. */ 94 #define IO_AHA0 0x330 /* adaptec 1542 default addr. */ 95 #define IO_UHA0 0x330 /* ultrastore 14f default addr. */ 96 #define IO_BT1 0x334 /* bustek 742a default addr. */ 97 #define IO_AHA1 0x334 /* adaptec 1542 default addr. */ 98 99 /* 0x338 - 0x34F Open */ 100 101 #define IO_WDS 0x350 /* WD7000 scsi */ 102 103 /* 0x354 - 0x36F Open */ 104 105 #define IO_FD2 0x370 /* secondary base i/o address */ 106 #define IO_LPT1 0x378 /* Parallel Port #1 */ 107 108 /* 0x380 - 0x3AF Open */ 109 110 #define IO_MDA 0x3B0 /* Monochome Adapter */ 111 #define IO_LPT3 0x3BC /* Monochome Adapter Printer Port */ 112 #define IO_VGA 0x3C0 /* E/VGA Ports */ 113 #define IO_CGA 0x3D0 /* CGA Ports */ 114 115 /* 0x3E0 - 0x3E7 Open */ 116 117 #define IO_COM3 0x3e8 /* COM3 i/o address */ 118 #define IO_FD1 0x3f0 /* primary base i/o address */ 119 #define IO_COM1 0x3f8 /* COM1 i/o address */ 120 121 #define IO_ISAEND 0x3FF /* - 0x3FF End of I/O Registers */ 122 #endif /* !IO_ISABEGIN */ 123 124 /* 125 * Input / Output Port Sizes - these are from several sources, and tend 126 * to be the larger of what was found, ie COM ports can be 4, but some 127 * boards do not fully decode the address, thus 8 ports are used. 128 */ 129 130 #ifndef IO_ISASIZES 131 #define IO_ISASIZES 132 133 #define IO_COMSIZE 8 /* 8250, 16X50 com controllers */ 134 #define IO_CGASIZE 16 /* CGA controllers */ 135 #define IO_DMASIZE 16 /* 8237 DMA controllers */ 136 #define IO_DPGSIZE 32 /* 74LS612 DMA page registers */ 137 #define IO_FDCSIZE 8 /* Nec765 floppy controllers */ 138 #define IO_WDCSIZE 8 /* WD compatible disk controller */ 139 #define IO_GAMSIZE 16 /* AT compatible game controller */ 140 #define IO_ICUSIZE 16 /* 8259A interrupt controllers */ 141 #define IO_KBDSIZE 5 /* 8042 Keyboard controllers */ 142 #define IO_LPTSIZE 8 /* LPT controllers, some use onl */ 143 #define IO_MDASIZE 16 /* Monochrome display controller */ 144 #define IO_RTCSIZE 16 /* CMOS real time clock, NMI con */ 145 #define IO_TMRSIZE 16 /* 8253 programmable timers */ 146 #define IO_NPXSIZE 16 /* 80387/80487 NPX registers */ 147 #define IO_VGASIZE 16 /* VGA controllers */ 148 #define IO_PMPSIZE 2 /* 82347 Power Management Peripheral */ 149 #endif /* !IO_ISASIZES */ 150 151 /* 152 * Input / Output Memory Physical Addresses 153 */ 154 155 #ifndef IOM_BEGIN 156 #define IOM_BEGIN 0x0a0000 /* Start of I/O Memory "hole" */ 157 #define IOM_END 0x100000 /* End of I/O Memory "hole" */ 158 #define IOM_SIZE (IOM_END - IOM_BEGIN) 159 160 /* 161 * ISA DMA works < 16M (24 address lines). 162 */ 163 #define ISA_DMA_BOUNCE_THRESHOLD (16 * 1024 * 1024) 164 165 #endif /* !IOM_BEGIN */ 166
Indexes created Sat Sep 20 22:09:52 GMT 2025