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      1 /*	$NetBSD: data.h,v 1.5 2017/05/22 16:59:32 ragge 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  *
     18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28  */
     29 
     30  /* All bugs are subject to removal without further notice */
     31 
     32 
     33 
     34 /*
     35  * rpb->iovec gives pointer to this structure.
     36  *
     37  * bqo->unit_init() is used to initialize the controller,
     38  * bqo->qio() is used to read from boot-device
     39  */
     40 
     41 struct bqo {
     42 	long  qio;            /*  4  QIO entry  */
     43 	long  map;            /*  4  Mapping entry  */
     44 	long  select;         /*  4  Selection entry  */
     45 	long  drivrname;      /*  4  Offset to driver name  */
     46 	short version;        /*  2  Version number of VMB  */
     47 	short vercheck;       /*  2  Check field  */
     48 	/* offset: 20 */
     49 	long  reselect;       /*  4  Reselection entry  */
     50 	long  move;           /*  4  Move driver entry  */
     51 	long  unit_init;      /*  4  Unit initialization entry  */
     52 	long  auxdrname;      /*  4  Offset to auxiliary driver name  */
     53 	long  umr_dis;        /*  4  UNIBUS Map Registers to disable  */
     54 	/* offset: 40 */
     55 	long  ucode;          /*  4  Absolute address of booting microcode  */
     56 	long  unit_disc;      /*  4  Unit disconnecting entry */
     57 	long  devname;        /*  4  Offset to boot device name */
     58 	long  umr_tmpl;       /*  4  UNIBUS map register template */
     59 	/* offset: 60 */
     60 	/*
     61 	 * the rest is unknown / unnecessary ...
     62 	 */
     63 	long  xxx[6];		/* 24 --	total: 84 bytes */
     64 };
     65