xref: /titanic_51/usr/src/uts/intel/promif/prom_node.c (revision a31148363f598def767ac48c5d82e1572e44b935)
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 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 #include <sys/promif.h>
30 #include <sys/promimpl.h>
31 #include <sys/prom_emul.h>
32 #include <sys/kmem.h>
33 
34 /*
35  * Routines for walking the PROMs devinfo tree
36  * The prom tree is for /dev/openprom compatibility only,
37  * so we fail all calls except those needed by /dev/openprom
38  */
39 
40 /*
41  * Return the root nodeid.
42  * Calling prom_nextnode(0) returns the root nodeid.
43  */
44 pnode_t
45 prom_rootnode(void)
46 {
47 	static pnode_t rootnode;
48 
49 	return (rootnode ? rootnode : (rootnode = prom_nextnode(OBP_NONODE)));
50 }
51 
52 pnode_t
53 prom_nextnode(pnode_t nodeid)
54 {
55 	return (promif_nextnode(nodeid));
56 }
57 
58 pnode_t
59 prom_childnode(pnode_t nodeid)
60 {
61 
62 	return (promif_childnode(nodeid));
63 }
64 
65 /*
66  * disallow searching
67  */
68 /*ARGSUSED*/
69 pnode_t
70 prom_findnode_byname(pnode_t n, char *name)
71 {
72 	return (OBP_NONODE);
73 }
74 
75 pnode_t
76 prom_chosennode(void)
77 {
78 	return (OBP_NONODE);
79 }
80 
81 pnode_t
82 prom_optionsnode(void)
83 {
84 	return (OBP_NONODE);
85 }
86 
87 /*ARGSUSED*/
88 pnode_t
89 prom_finddevice(char *path)
90 {
91 	return (OBP_BADNODE);
92 }
93 
94 pnode_t
95 prom_alias_node(void)
96 {
97 	return (OBP_BADNODE);
98 }
99 
100 /*ARGSUSED*/
101 void
102 prom_pathname(char *buf)
103 {
104 	/* nothing, just to get consconfig_dacf to compile */
105 }
106