xref: /freebsd/sys/isa/isareg.h (revision fcb560670601b2a4d87bb31d7531c8dcc37ee71b)
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  * 4. Neither the name of the University nor the names of its contributors
17  *    may be used to endorse or promote products derived from this software
18  *    without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30  * SUCH DAMAGE.
31  *
32  *	from: @(#)isa.h	5.7 (Berkeley) 5/9/91
33  * $FreeBSD$
34  */
35 
36 #ifdef PC98
37 #error isareg.h is included from PC-9801 source
38 #endif
39 
40 #ifndef _ISA_ISA_H_
41 #define	_ISA_ISA_H_
42 
43 /*
44  * ISA Bus conventions
45  */
46 
47 /*
48  * Input / Output Port Assignments
49  */
50 #ifndef IO_ISABEGIN
51 #define	IO_ISABEGIN	0x000		/* 0x000 - Beginning of I/O Registers */
52 #define	IO_ICU1		0x020		/* 8259A Interrupt Controller #1 */
53 #define	IO_KBD		0x060		/* 8042 Keyboard */
54 #define	IO_RTC		0x070		/* RTC */
55 #define	IO_ICU2		0x0A0		/* 8259A Interrupt Controller #2 */
56 
57 #define	IO_MDA		0x3B0		/* Monochome Adapter */
58 #define	IO_VGA		0x3C0		/* E/VGA Ports */
59 #define	IO_CGA		0x3D0		/* CGA Ports */
60 
61 #endif /* !IO_ISABEGIN */
62 
63 /*
64  * Input / Output Port Sizes
65  */
66 #define	IO_CGASIZE	12		/* CGA controllers */
67 #define	IO_MDASIZE	12		/* Monochrome display controllers */
68 #define	IO_VGASIZE	16		/* VGA controllers */
69 
70 #endif /* !_ISA_ISA_H_ */
71