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      1 /* -*-C++-*-	$NetBSD: platform.cpp,v 1.6 2008/04/28 20:23:20 martin 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 }
     72