NetBSD/sys/arch/pmax/stand/common/bootinfo.c

83 lines
2.8 KiB
C

/* $NetBSD: bootinfo.c,v 1.5 1999/11/27 03:06:31 simonb 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 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/types.h>
#include <lib/libsa/stand.h>
#include <lib/libkern/libkern.h>
#include "bootinfo.h"
static char *bootinfo = NULL;
static char *bi_next;
static int bi_size;
void bi_init(addr)
paddr_t addr;
{
struct btinfo_common *bi;
struct btinfo_magic bi_magic;
bootinfo = (char *)addr;
bi = (struct btinfo_common *)bootinfo;
bi->next = bi->type = 0;
bi_next = bootinfo;
bi_size = 0;
bi_magic.magic = BOOTINFO_MAGIC;
bi_add(&bi_magic, BTINFO_MAGIC, sizeof(bi_magic));
}
void bi_add(new, type, size)
void *new;
int type, size;
{
struct btinfo_common *bi;
if (bi_size + size > BOOTINFO_SIZE)
return; /* XXX error? */
bi = new;
bi->next = size;
bi->type = type;
bcopy(new, bi_next, size);
bi_next += size;
bi = (struct btinfo_common *)bi_next;
bi->next = bi->type = 0;
}