sys/arch/hpc/stand/hpcboot/menu/platform.cpp

   1 /* -*-C++-*-    $NetBSD: platform.cpp,v 1.5 2005/12/11 12:17:28 christos Exp $  */
   2
   3 /*-
   4  * Copyright (c) 2001 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by UCHIYAMA Yasushi.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #include <hpcmenu.h>
  33 #include <machine/platid.h>
  34 #include <machine/platid_mask.h>
  35
  36 void *
  37 HpcMenuInterface::_platform(int n, enum _platform_op op)
  38 {
  39         int i, cnt;
  40         struct platid_name *name;
  41
  42         for (i = cnt = 0, name = platid_name_table;
  43             i < platid_name_table_size; i++, name++) {
  44                 platid_t *mask = name->mask;
  45                 if (mask->dw.dw0 == PLATID_WILD || mask->dw.dw1 == PLATID_WILD)
  46                         continue;
  47                 switch(op) {
  48                 case _PLATFORM_OP_GET:
  49                         if (n == cnt)
  50                                 // XXX: constification fallout
  51                                 return reinterpret_cast <void *>
  52                                         (const_cast <tchar *>(name->name));
  53                         break;
  54                 case _PLATFORM_OP_SET:
  55                         if (n == cnt) {
  56                                 _pref.platid_hi = mask->dw.dw0;
  57                                 _pref.platid_lo = mask->dw.dw1;
  58                                 return static_cast <void *>(0);
  59                         }
  60                         break;
  61                 case _PLATFORM_OP_DEFAULT:
  62                         if ((mask->dw.dw0 == _pref.platid_hi) &&
  63                             (mask->dw.dw1 == _pref.platid_lo))
  64                                 return reinterpret_cast <void *>(cnt);
  65                         break;
  66                 }
  67                 cnt++;
  68         }
  69
  70         return 0;
  71 }