xref: /titanic_50/usr/src/stand/lib/sa/sparc/prom_misc.c (revision 554ff184129088135ad2643c1c9832174a17be88)
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 2002-2003 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #include <sys/salib.h>
28 #include <sys/promimpl.h>
29 
30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
31 
32 void
33 prom_create_encoded_prop(char *propname, void *prop_data, int prop_datalen,
34     enum encode_how how)
35 {
36 	char encode_bytes_command[] =	"my-self >r  0 to my-self"
37 					" push-package"
38 					" encode-bytes  2swap property"
39 					" pop-package"
40 					" r> to my-self";
41 	char encode_string_command[] =	"my-self >r  0 to my-self"
42 					" push-package"
43 					" encode-string  2swap property"
44 					" pop-package"
45 					" r> to my-self";
46 	char *command;
47 	static dnode_t cn = OBP_NONODE;
48 
49 	if (cn == OBP_NONODE) {
50 		cn = prom_finddevice("/chosen");
51 		if (cn == OBP_BADNODE)
52 			prom_panic("prom_create_encoded_prop: no /chosen\n");
53 	}
54 
55 	if (how == ENCODE_BYTES) {
56 		command = encode_bytes_command;
57 	} else {
58 		assert(how == ENCODE_STRING);
59 		command = encode_string_command;
60 	}
61 
62 	prom_interpret(command, (uint_t)cn, prop_datalen,
63 	    (uintptr_t)prop_data, strlen(propname), (uintptr_t)propname);
64 }
65