sys/arch/vax/boot/boot/data.h

   1 /*      $NetBSD: data.h,v 1.3 2001/07/26 15:05:09 wiz Exp $ */
   2 /*
   3  * Copyright (c) 1995 Ludd, University of Lule}, Sweden.
   4  * All rights reserved.
   5  *
   6  * This code is derived from software contributed to Ludd by
   7  * Bertram Barth.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  * 3. All advertising materials mentioning features or use of this software
  18  *    must display the following acknowledgement:
  19  *      This product includes software developed at Ludd, University of
  20  *      Lule}, Sweden and its contributors.
  21  * 4. The name of the author may not be used to endorse or promote products
  22  *    derived from this software without specific prior written permission
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  25  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  26  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  27  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  28  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  29  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  30  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  31  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  32  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  33  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  34  */
  35
  36  /* All bugs are subject to removal without further notice */
  37
  38
  39
  40 /*
  41  * rpb->iovec gives pointer to this structure.
  42  *
  43  * bqo->unit_init() is used to initialize the controller,
  44  * bqo->qio() is used to read from boot-device
  45  */
  46
  47 struct bqo {
  48         long  qio;            /*  4  QIO entry  */
  49         long  map;            /*  4  Mapping entry  */
  50         long  select;         /*  4  Selection entry  */
  51         long  drivrname;      /*  4  Offset to driver name  */
  52         short version;        /*  2  Version number of VMB  */
  53         short vercheck;       /*  2  Check field  */
  54         /* offset: 20 */
  55         long  reselect;       /*  4  Reselection entry  */
  56         long  move;           /*  4  Move driver entry  */
  57         long  unit_init;      /*  4  Unit initialization entry  */
  58         long  auxdrname;      /*  4  Offset to auxiliary driver name  */
  59         long  umr_dis;        /*  4  UNIBUS Map Registers to disable  */
  60         /* offset: 40 */
  61         long  ucode;          /*  4  Absolute address of booting microcode  */
  62         long  unit_disc;      /*  4  Unit disconnecting entry */
  63         long  devname;        /*  4  Offset to boot device name */
  64         long  umr_tmpl;       /*  4  UNIBUS map register template */
  65         /* offset: 60 */
  66         /*
  67          * the rest is unknown / unnecessary ...
  68          */
  69         long  xxx[6];           /* 24 --        total: 84 bytes */
  70 };