arch/x86/kernel/promif/prom_version.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 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/obpdefs.h>
  32 #include <sys/types.h>
  33 #include <sys/kmem.h>
  34
  35 #define PROM_VERSION_NUMBER 4   /* Obsolete under new boot */
  36
  37 int
  38 prom_getversion(void)
  39 {
  40         return (PROM_VERSION_NUMBER);
  41 }
  42
  43 int
  44 prom_is_openprom(void)
  45 {
  46         return (1);     /* to humor /dev/openprom */
  47 }
  48
  49 /*
  50  * Return a string representing the prom version.  In this case
  51  * a string representing the version of devconf that created
  52  * the device tree will be returned.
  53  *
  54  * Return the actual length of the string including the NULL terminator.
  55  */
  56
  57 int
  58 prom_version_name(char *buf, int len)
  59 {
  60         static char prom_versionstr[] = "DevConf 2.0";
  61         extern size_t strlcpy(char *, const char *, size_t);
  62
  63         (void) strlcpy(buf, prom_versionstr, len - 1);
  64         return (sizeof (prom_versionstr));
  65 }