/*      $NetBSD: data.h,v 1.5 2017/05/22 16:59:32 ragge Exp $ */
/*
 * Copyright (c) 1995 Ludd, University of Lule}, Sweden.
 * All rights reserved.
 *
 * This code is derived from software contributed to Ludd by
 * Bertram Barth.
 *
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
 */

 /* All bugs are subject to removal without further notice */
                


/*
 * rpb->iovec gives pointer to this structure.
 *
 * bqo->unit_init() is used to initialize the controller,
 * bqo->qio() is used to read from boot-device
 */

struct bqo {
        long  qio;            /*  4  QIO entry  */
        long  map;            /*  4  Mapping entry  */
        long  select;         /*  4  Selection entry  */
        long  drivrname;      /*  4  Offset to driver name  */
        short version;        /*  2  Version number of VMB  */
        short vercheck;       /*  2  Check field  */
        /* offset: 20 */
        long  reselect;       /*  4  Reselection entry  */
        long  move;           /*  4  Move driver entry  */
        long  unit_init;      /*  4  Unit initialization entry  */
        long  auxdrname;      /*  4  Offset to auxiliary driver name  */
        long  umr_dis;        /*  4  UNIBUS Map Registers to disable  */
        /* offset: 40 */
        long  ucode;          /*  4  Absolute address of booting microcode  */
        long  unit_disc;      /*  4  Unit disconnecting entry */
        long  devname;        /*  4  Offset to boot device name */
        long  umr_tmpl;       /*  4  UNIBUS map register template */
        /* offset: 60 */
        /*
         * the rest is unknown / unnecessary ...
         */
        long  xxx[6];           /* 24 --        total: 84 bytes */
};