usr/src/psm/promif/ieee1275/common/prom_kbd.c

   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 }