/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1990,1992-1994 by Sun Microsystems, Inc.
* All rights reserved.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* XXX: Break this up into individual property lookups.
*/
#include <sys/promif.h>
#include <sys/promimpl.h>
#include <sys/idprom.h>
/*
* Get idprom property from root node, return to callers buffer.
*/
int
prom_getidprom(caddr_t addr, int size)
{
u_char *cp, val = 0;
/*LINTED [idprom unused]*/
idprom_t idprom;
int i;
int length;
length = prom_getproplen(prom_rootnode(), OBP_IDPROM);
if (length == -1) {
prom_printf("Missing OBP idprom property.\n");
return (-1);
}
if (length > size) {
prom_printf("Buffer size too small.\n");
return (-1);
}
(void) prom_getprop(prom_rootnode(), OBP_IDPROM,
(caddr_t) addr);
/*
* Test the checksum for sanity
*/
for (cp = (u_char *)addr, i = 0;
i < (sizeof (idprom) - sizeof (idprom.id_undef)); i++)
val ^= *cp++;
if (val != 0)
prom_printf("Warning: IDprom checksum error.\n");
return (0);
}