xref: /netbsd/sys/arch/hpc/stand/hpcboot/menu/platform.cpp (revision bf9ec67e)
1 /* -*-C++-*-	$NetBSD: platform.cpp,v 1.2 2001/05/08 18:51:24 uch 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  * 3. All advertising materials mentioning features or use of this software
19  *    must display the following acknowledgement:
20  *        This product includes software developed by the NetBSD
21  *        Foundation, Inc. and its contributors.
22  * 4. Neither the name of The NetBSD Foundation nor the names of its
23  *    contributors may be used to endorse or promote products derived
24  *    from this software without specific prior written permission.
25  *
26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36  * POSSIBILITY OF SUCH DAMAGE.
37  */
38 
39 #include <hpcmenu.h>
40 #include <machine/platid.h>
41 #include <machine/platid_mask.h>
42 
43 void *
44 HpcMenuInterface::_platform(int n, enum _platform_op op)
45 {
46 	int i, cnt;
47 	struct platid_name *name;
48 
49 	for (i = cnt = 0, name = platid_name_table;
50 	    i < platid_name_table_size; i++, name++) {
51 		platid_t *mask = name->mask;
52 		if (mask->dw.dw0 == PLATID_WILD || mask->dw.dw1 == PLATID_WILD)
53 			continue;
54 		switch(op) {
55 		case _PLATFORM_OP_GET:
56 			if (n == cnt)
57 				return reinterpret_cast <void *>(name->name);
58 			break;
59 		case _PLATFORM_OP_SET:
60 			if (n == cnt) {
61 				_pref.platid_hi = mask->dw.dw0;
62 				_pref.platid_lo = mask->dw.dw1;
63 				return static_cast <void *>(0);
64 			}
65 			break;
66 		case _PLATFORM_OP_DEFAULT:
67 			if ((mask->dw.dw0 == _pref.platid_hi) &&
68 			    (mask->dw.dw1 == _pref.platid_lo))
69 				return reinterpret_cast <void *>(cnt);
70 			break;
71 		}
72 		cnt++;
73 	}
74 
75 	return 0;
76 }
77