sys/arch/hp700/stand/boot/bootinfo.h

   1 /*      $NetBSD: bootinfo.h,v 1.1 2008/02/03 12:09:41 skrll Exp $       */
   2
   3 /*-
   4  * Copyright (c) 1999 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Jonathan Stone, Michael Hitch and Simon Burge.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #include <machine/bootinfo.h>
  33
  34 #define BOOTINFO_MAXSIZE 1024
  35 #define BOOTINFO_DATASIZE (BOOTINFO_MAXSIZE - 2 * sizeof(int))
  36
  37 /*
  38  * Structure that holds the information passed by the boot loader.
  39  */
  40 struct bootinfo {
  41         int     bi_nentries;    /* Number of bootinfo_* entries in bi_data. */
  42         int     bi_offset;      /* Offset into bi_data for next bootinfo_* */
  43
  44         /* Raw data of bootinfo entries.  The first one (if any) is
  45          * found at &bi_data[0] and can be cast to (bootinfo_common *).
  46          * Once this is done, the following entry is found at 'len'
  47          * offset as specified by the previous entry. */
  48         char    bi_data[BOOTINFO_DATASIZE];
  49 };
  50
  51 extern struct bootinfo bootinfo;
  52
  53 #define BI_ADD(x, type, size) bi_add((struct btinfo_common *)(x), type, size)
  54
  55 void    bi_init(void);
  56 void    bi_add(struct btinfo_common *, int, size_t);