1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate * Copyright (c) 1990,1992-1994 by Sun Microsystems, Inc.
24*0Sstevel@tonic-gate * All rights reserved.
25*0Sstevel@tonic-gate */
26*0Sstevel@tonic-gate
27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
28*0Sstevel@tonic-gate
29*0Sstevel@tonic-gate /*
30*0Sstevel@tonic-gate * XXX: Break this up into individual property lookups.
31*0Sstevel@tonic-gate */
32*0Sstevel@tonic-gate
33*0Sstevel@tonic-gate #include <sys/promif.h>
34*0Sstevel@tonic-gate #include <sys/promimpl.h>
35*0Sstevel@tonic-gate #include <sys/idprom.h>
36*0Sstevel@tonic-gate
37*0Sstevel@tonic-gate /*
38*0Sstevel@tonic-gate * Get idprom property from root node, return to callers buffer.
39*0Sstevel@tonic-gate */
40*0Sstevel@tonic-gate
41*0Sstevel@tonic-gate int
prom_getidprom(caddr_t addr,int size)42*0Sstevel@tonic-gate prom_getidprom(caddr_t addr, int size)
43*0Sstevel@tonic-gate {
44*0Sstevel@tonic-gate u_char *cp, val = 0;
45*0Sstevel@tonic-gate /*LINTED [idprom unused]*/
46*0Sstevel@tonic-gate idprom_t idprom;
47*0Sstevel@tonic-gate int i;
48*0Sstevel@tonic-gate int length;
49*0Sstevel@tonic-gate
50*0Sstevel@tonic-gate length = prom_getproplen(prom_rootnode(), OBP_IDPROM);
51*0Sstevel@tonic-gate if (length == -1) {
52*0Sstevel@tonic-gate prom_printf("Missing OBP idprom property.\n");
53*0Sstevel@tonic-gate return (-1);
54*0Sstevel@tonic-gate }
55*0Sstevel@tonic-gate
56*0Sstevel@tonic-gate if (length > size) {
57*0Sstevel@tonic-gate prom_printf("Buffer size too small.\n");
58*0Sstevel@tonic-gate return (-1);
59*0Sstevel@tonic-gate }
60*0Sstevel@tonic-gate
61*0Sstevel@tonic-gate (void) prom_getprop(prom_rootnode(), OBP_IDPROM,
62*0Sstevel@tonic-gate (caddr_t) addr);
63*0Sstevel@tonic-gate
64*0Sstevel@tonic-gate /*
65*0Sstevel@tonic-gate * Test the checksum for sanity
66*0Sstevel@tonic-gate */
67*0Sstevel@tonic-gate for (cp = (u_char *)addr, i = 0;
68*0Sstevel@tonic-gate i < (sizeof (idprom) - sizeof (idprom.id_undef)); i++)
69*0Sstevel@tonic-gate val ^= *cp++;
70*0Sstevel@tonic-gate
71*0Sstevel@tonic-gate if (val != 0)
72*0Sstevel@tonic-gate prom_printf("Warning: IDprom checksum error.\n");
73*0Sstevel@tonic-gate
74*0Sstevel@tonic-gate return (0);
75*0Sstevel@tonic-gate }
76