1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #include <sys/promif.h>
28 #include <sys/promimpl.h>
29 #include <sys/prom_emul.h>
30 #include <sys/kmem.h>
31 
32 /*
33  * Routines for walking the PROMs devinfo tree
34  * The prom tree is for /dev/openprom compatibility only,
35  * so we fail all calls except those needed by /dev/openprom
36  */
37 
38 /*
39  * Return the root nodeid.
40  * Calling prom_nextnode(0) returns the root nodeid.
41  */
42 pnode_t
prom_rootnode(void)43 prom_rootnode(void)
44 {
45 	static pnode_t rootnode;
46 
47 	return (rootnode ? rootnode : (rootnode = prom_nextnode(OBP_NONODE)));
48 }
49 
50 pnode_t
prom_nextnode(pnode_t nodeid)51 prom_nextnode(pnode_t nodeid)
52 {
53 	return (promif_nextnode(nodeid));
54 }
55 
56 pnode_t
prom_childnode(pnode_t nodeid)57 prom_childnode(pnode_t nodeid)
58 {
59 
60 	return (promif_childnode(nodeid));
61 }
62 
63 /*
64  * disallow searching
65  */
66 /*ARGSUSED*/
67 pnode_t
prom_findnode_byname(pnode_t n,char * name)68 prom_findnode_byname(pnode_t n, char *name)
69 {
70 	return (OBP_NONODE);
71 }
72 
73 pnode_t
prom_chosennode(void)74 prom_chosennode(void)
75 {
76 	return (OBP_NONODE);
77 }
78 
79 pnode_t
prom_optionsnode(void)80 prom_optionsnode(void)
81 {
82 	return (OBP_NONODE);
83 }
84 
85 /*ARGSUSED*/
86 pnode_t
prom_finddevice(char * path)87 prom_finddevice(char *path)
88 {
89 	return (OBP_BADNODE);
90 }
91 
92 pnode_t
prom_alias_node(void)93 prom_alias_node(void)
94 {
95 	return (OBP_BADNODE);
96 }
97 
98 /*ARGSUSED*/
99 void
prom_pathname(char * buf)100 prom_pathname(char *buf)
101 {
102 	/* nothing, just to get consconfig_dacf to compile */
103 }
104