xref: /illumos-gate/usr/src/psm/promif/ieee1275/common/prom_kbd.c (revision 4de2612967d06c4fdbf524a62556a1e8118a006f)
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 (c) 1998-1999 by Sun Microsystems, Inc.
24  * All rights reserved.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 #include <sys/promif.h>
30 #include <sys/promimpl.h>
31 
32 /*
33  * If the stdin device exports the "keyboard" property and
34  * the length of the property is 0, return true.  Otherwise,
35  * check the name of the stdin device node.  If the name is
36  * "keyboard" return true, else return false.
37  * XXX: The "keyboard" property is not part of the IEEE 1275 standard.
38  * XXX: Perhaps this belongs in platform dependent directories?
39  */
40 int
41 prom_stdin_is_keyboard(void)
42 {
43 	char dev_name[OBP_MAXDRVNAME];
44 
45 	/*
46 	 * NB: A keyboard property with a value might be an alias
47 	 * or something else so we distinguish it by length.
48 	 */
49 	if (prom_getproplen(prom_stdin_node(), "keyboard") == 0)
50 		return (1);
51 
52 	if (prom_stdin_devname(dev_name) == -1)
53 		return (0);
54 
55 	return (prom_strcmp(dev_name, "keyboard") == 0);
56 }
57