usr/src/psm/promif/ieee1275/common/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 (c) 1991-1994, 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 int
  33 prom_getversion(void)
  34 {
  35
  36         /*
  37          * For compatibility with older client programs, if there is no
  38          * ROMVEC, we simply return a very large number here.
  39          */
  40         return (obp_romvec_version);
  41 }
  42
  43 int
  44 prom_is_openprom(void)
  45 {
  46         /*
  47          * Returns true, if openboot or open firmware interface exists.
  48          */
  49         return (1);
  50 }
  51
  52 int
  53 prom_is_p1275(void)
  54 {
  55         /*
  56          * Returns true, if IEEE 1275 interface exists.
  57          */
  58         return (1);
  59 }
  60
  61 /*
  62  * Certain standalones need to get the revision of a certain
  63  * version of the firmware to be able to figure out how to
  64  * correct for certain errors in certain versions of the PROM.
  65  *
  66  * The caller has to know what to do with the cookie returned
  67  * from prom_mon_id(). c.f. uts/sun4c/io/autoconf.c:impl_fix_props().
  68  */
  69
  70 void *
  71 prom_mon_id(void)
  72 {
  73         return (NULL);          /* For compatibilty, none exists in 1275 */
  74 }