xref: /netbsd-src/sys/arch/hpc/stand/hpcboot/menu/platform.cpp (revision ce099b40997c43048fb78bd578195f81d2456523)
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 *
_platform(int n,enum _platform_op op)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