FreeBSD/Linux Kernel Cross Reference
sys/i386at/eisa.h

     /* 
      * Mach Operating System
      * Copyright (c) 1993 Carnegie Mellon University
      * All Rights Reserved.
      * 
      * Permission to use, copy, modify and distribute this software and its
      * documentation is hereby granted, provided that both the copyright
      * notice and this permission notice appear in all copies of the
      * software, derivative works or modified versions, and any portions
     * thereof, and that both notices appear in supporting documentation.
     * 
     * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
     * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
     * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     * 
     * Carnegie Mellon requests users of this software to return to
     * 
     *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
     *  School of Computer Science
     *  Carnegie Mellon University
     *  Pittsburgh PA 15213-3890
     * 
     * any improvements or extensions that they make and grant Carnegie Mellon
     * the rights to redistribute these changes.
     */
    /*
     * Copyright 1992 by Open Software Foundation,
     * Grenoble, FRANCE
     *
     *              All Rights Reserved
     * 
     *   Permission to use, copy, modify, and distribute this software and
     * its documentation for any purpose and without fee is hereby granted,
     * provided that the above copyright notice appears in all copies and
     * that both the copyright notice and this permission notice appear in
     * supporting documentation, and that the name of OSF or Open Software
     * Foundation not be used in advertising or publicity pertaining to
     * distribution of the software without specific, written prior
     * permission.
     * 
     *   OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
     * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS,
     * IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
     * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
     * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
     * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
     * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     */
    
    /*
     * HISTORY
     * $Log:        eisa.h,v $
     * Revision 2.2  93/11/17  16:43:38  dbg
     *      RCSed.  Presumably Philippe Bernadat wrote this.
     *      [93/10/20            af]
     * 
    
    /*
     * Eisa defs
     */
    
    #ifndef _I386AT_EISA_H_
    #define _I386AT_EISA_H_
    
    #include <mach/boolean.h>
    
    #if     EISA
    extern boolean_t is_eisa_bus;
    
    #define EISA_ID_REG(board, byte)        (0xc80 | (byte) | ((board) << 12))
    
    #define EISA_ID_REG_0   0x0
    #define EISA_ID_REG_1   0x1
    #define EISA_ID_REG_2   0x2
    #define EISA_ID_REG_3   0x3
    
    #define EISA_SYSTEM_BOARD 0x0
    
    struct std_board_id {
            unsigned revision:      8,      /* Revision number */
                     product:       8;      /* Product number */ 
    };
    
    struct sys_board_id {
            unsigned bus_vers:      3,      /* EISA bus version */
                     reserved:      13;     /* Manufacturer reserved */
    };
    
    struct board_id {
            union {
                    struct sys_board_id sys_id;
                    struct std_board_id std_id;
            } bd_id;
            unsigned name_char_2:   5,      /* 3nd compressed char */
                     name_char_1:   5,      /* 2nd compressed char */
                     name_char_0:   5,      /* 1st compressed char */
                     not_eisa:      1;      /* 0 if eisa board */
    };
    
   union eisa_board_id {
           unsigned char byte[4];
           struct board_id id;
   };
   
   typedef union eisa_board_id eisa_board_id_t;
   
   
   /* Additional DMA registers */
   
   #define DMA0HIPAGE      0x481           /* DMA 0 address: bits 24-31 */
   #define DMA0HICNT       0x405           /* DMA 0 count: bits 16-23 */
   
   
   #else   /* EISA */
   #define is_eisa_bus FALSE
   #define probe_eisa()
   #endif  /* EISA */
   
   #endif  /* _I386AT_EISA_H_ */

Cache object: c54a5fac6a0661325e7a1f58f358e094