freebsd-dev/sys/i386/isa/isa.h

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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.
* 4. Neither the name of the University nor the names of its contributors
* 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
1999-08-28 01:08:13 +00:00
* $FreeBSD$
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*/
#ifdef PC98
#error isa.h is included from PC-9801 source
#endif
#ifndef _I386_ISA_ISA_H_
#define _I386_ISA_ISA_H_
/* BEWARE: Included in both assembler and C code */
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/*
* ISA Bus conventions
*/
/*
* Input / Output Port Assignments
*/
#ifndef IO_ISABEGIN
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#define IO_ISABEGIN 0x000 /* 0x000 - Beginning of I/O Registers */
/* CPU Board */
#define IO_DMA1 0x000 /* 8237A DMA Controller #1 */
#define IO_ICU1 0x020 /* 8259A Interrupt Controller #1 */
#define IO_PMP1 0x026 /* 82347 Power Management Peripheral */
#define IO_TIMER1 0x040 /* 8253 Timer #1 */
#define IO_TIMER2 0x048 /* 8253 Timer #2 */
#define IO_KBD 0x060 /* 8042 Keyboard */
#define IO_PPI 0x061 /* Programmable Peripheral Interface */
#define IO_RTC 0x070 /* RTC */
#define IO_NMI IO_RTC /* NMI Control */
#define IO_DMAPG 0x080 /* DMA Page Registers */
#define IO_ICU2 0x0A0 /* 8259A Interrupt Controller #2 */
#define IO_DMA2 0x0C0 /* 8237A DMA Controller #2 */
#define IO_NPX 0x0F0 /* Numeric Coprocessor */
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/* Cards */
#define IO_VGA 0x3C0 /* E/VGA Ports */
#define IO_CGA 0x3D0 /* CGA Ports */
#define IO_MDA 0x3B0 /* Monochome Adapter */
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#define IO_ISAEND 0x3FF /* End (actually Max) of I/O Regs */
#endif /* !IO_ISABEGIN */
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/*
* Input / Output Port Sizes - these are from several sources, and tend
* to be the larger of what was found.
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*/
#ifndef IO_ISASIZES
#define IO_ISASIZES
#define IO_CGASIZE 12 /* CGA controllers */
#define IO_MDASIZE 12 /* Monochrome display controllers */
#define IO_NPXSIZE 16 /* 80387/80487 NPX registers */
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#define IO_VGASIZE 16 /* VGA controllers */
#endif /* !IO_ISASIZES */
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/*
* Input / Output Memory Physical Addresses
*/
#ifndef IOM_BEGIN
#define IOM_BEGIN 0x0A0000 /* Start of I/O Memory "hole" */
#define IOM_END 0x100000 /* End of I/O Memory "hole" */
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#define IOM_SIZE (IOM_END - IOM_BEGIN)
#endif /* !IOM_BEGIN */
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/*
* RAM Physical Address Space (ignoring the above mentioned "hole")
*/
#ifndef RAM_BEGIN
#define RAM_BEGIN 0x0000000 /* Start of RAM Memory */
#define RAM_END 0x1000000 /* End of RAM Memory */
#define RAM_SIZE (RAM_END - RAM_BEGIN)
#endif /* !RAM_BEGIN */
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#endif /* !_I386_ISA_ISA_H_ */