FreeBSD/Linux Kernel Cross Reference
sys/i386/isa/isa.h

     /*-
      * 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
     * $FreeBSD: releng/6.2/sys/i386/isa/isa.h 146214 2005-05-14 10:14:56Z nyan $
     */
    
    #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 */
    
    /*
     * ISA Bus conventions
     */
    
    /*
     * Input / Output Port Assignments
     */
    #ifndef IO_ISABEGIN
    #define IO_ISABEGIN     0x000           /* 0x000 - Beginning of I/O Registers */
    
                    /* CPU Board */
    #define IO_ICU1         0x020           /* 8259A Interrupt Controller #1 */
    #define IO_PMP1         0x026           /* 82347 Power Management Peripheral */
    #define IO_KBD          0x060           /* 8042 Keyboard */
    #define IO_RTC          0x070           /* RTC */
    #define IO_NMI          IO_RTC          /* NMI Control */
    #define IO_ICU2         0x0A0           /* 8259A Interrupt Controller #2 */
    
                    /* Cards */
    #define IO_VGA          0x3C0           /* E/VGA Ports */
    #define IO_CGA          0x3D0           /* CGA Ports */
    #define IO_MDA          0x3B0           /* Monochome Adapter */
    
    #define IO_ISAEND       0x3FF           /* End (actually Max) of I/O Regs */
    #endif /* !IO_ISABEGIN */
    
    /*
     * Input / Output Port Sizes - these are from several sources, and tend
     * to be the larger of what was found.
     */
    #ifndef IO_ISASIZES
    #define IO_ISASIZES
    
    #define IO_CGASIZE      12              /* CGA controllers */
    #define IO_MDASIZE      12              /* Monochrome display controllers */
    #define IO_VGASIZE      16              /* VGA controllers */
    
    #endif /* !IO_ISASIZES */
    
    /*
     * 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" */
    #define IOM_SIZE        (IOM_END - IOM_BEGIN)
    #endif /* !IOM_BEGIN */
    
    /*
     * 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 */
   
   #endif /* !_I386_ISA_ISA_H_ */

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