freebsd-dev/sys/isa/isareg.h

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/*-
* SPDX-License-Identifier: BSD-3-Clause
*
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* Copyright (c) 1990 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. Neither the name of the University nor the names of its contributors
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* 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.
*
* from: @(#)isa.h 5.7 (Berkeley) 5/9/91
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* $FreeBSD$
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*/
#ifndef _ISA_ISA_H_
#define _ISA_ISA_H_
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/*
* ISA Bus conventions
*/
/*
* Input / Output Port Assignments
*/
#ifndef IO_ISABEGIN
#define IO_ISABEGIN 0x000 /* 0x000 - Beginning of I/O Registers */
#define IO_ICU1 0x020 /* 8259A Interrupt Controller #1 */
#define IO_KBD 0x060 /* 8042 Keyboard */
#define IO_RTC 0x070 /* RTC */
#define IO_ICU2 0x0A0 /* 8259A Interrupt Controller #2 */
#define IO_MDA 0x3B0 /* Monochome Adapter */
#define IO_VGA 0x3C0 /* E/VGA Ports */
#define IO_CGA 0x3D0 /* CGA Ports */
#endif /* !IO_ISABEGIN */
/*
* Input / Output Port Sizes
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*/
#define IO_CGASIZE 12 /* CGA controllers */
#define IO_MDASIZE 12 /* Monochrome display controllers */
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#define IO_VGASIZE 16 /* VGA controllers */
#endif /* !_ISA_ISA_H_ */