/*      $NetBSD: bootinfo.h,v 1.1 2014/02/24 07:23:43 skrll Exp $       */

/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jonathan Stone, Michael Hitch and Simon Burge.
*
* 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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.
*/

#include <machine/bootinfo.h>

#define BOOTINFO_MAXSIZE 1024
#define BOOTINFO_DATASIZE (BOOTINFO_MAXSIZE - 2 * sizeof(int))

/*
* Structure that holds the information passed by the boot loader.
*/
struct bootinfo {
       int     bi_nentries;    /* Number of bootinfo_* entries in bi_data. */
       int     bi_offset;      /* Offset into bi_data for next bootinfo_* */

       /* Raw data of bootinfo entries.  The first one (if any) is
        * found at &bi_data[0] and can be cast to (bootinfo_common *).
        * Once this is done, the following entry is found at 'len'
        * offset as specified by the previous entry. */
       char    bi_data[BOOTINFO_DATASIZE];
};

extern struct bootinfo bootinfo;

#define BI_ADD(x, type, size) bi_add((struct btinfo_common *)(x), type, size)

void    bi_init(void);
void    bi_add(struct btinfo_common *, int, size_t);