1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 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 35 #ifndef _ISA_ISA_H_ 36 #define _ISA_ISA_H_ 37 38 /* 39 * ISA Bus conventions 40 */ 41 42 /* 43 * Input / Output Port Assignments 44 */ 45 #ifndef IO_ISABEGIN 46 #define IO_ISABEGIN 0x000 /* 0x000 - Beginning of I/O Registers */ 47 #define IO_ICU1 0x020 /* 8259A Interrupt Controller #1 */ 48 #define IO_KBD 0x060 /* 8042 Keyboard */ 49 #define IO_RTC 0x070 /* RTC */ 50 #define IO_ICU2 0x0A0 /* 8259A Interrupt Controller #2 */ 51 52 #define IO_MDA 0x3B0 /* Monochome Adapter */ 53 #define IO_VGA 0x3C0 /* E/VGA Ports */ 54 #define IO_CGA 0x3D0 /* CGA Ports */ 55 56 #endif /* !IO_ISABEGIN */ 57 58 /* 59 * Input / Output Port Sizes 60 */ 61 #define IO_CGASIZE 12 /* CGA controllers */ 62 #define IO_MDASIZE 12 /* Monochrome display controllers */ 63 #define IO_VGASIZE 16 /* VGA controllers */ 64 65 #endif /* !_ISA_ISA_H_ */ 66