1 /* $NetBSD: platform.c,v 1.7 2022/05/24 06:28:00 andvar 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 SODA Noriyuki.
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 <sys/cdefs.h>
33 __KERNEL_RCSID(0, "$NetBSD: platform.c,v 1.7 2022/05/24 06:28:00 andvar Exp $");
34
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/kcore.h>
38
39 #include <machine/platform.h>
40 #include <arc/arc/arcbios.h>
41
42 struct platform *platform = NULL;
43
44 static void print_platform(struct platform *);
45
46 static void
print_platform(struct platform * p)47 print_platform(struct platform *p)
48 {
49 printf("\"%s %s%s\" (%s, %s)",
50 p->vendor, p->model, p->variant,
51 p->vendor_id ? p->vendor_id : "NULL",
52 p->system_id);
53 }
54
55 int
ident_platform(void)56 ident_platform(void)
57 {
58 int i, rv, matched = -1, match = 0, ambiguous_match = 0;
59
60 for (i = 0; i < nplattab; i++) {
61 rv = (*plattab[i]->match)(plattab[i]);
62 if (rv > match) {
63 match = rv;
64 matched = i;
65 ambiguous_match = 0;
66 } else if (rv == match) {
67 ++ambiguous_match;
68 }
69 }
70 if (ambiguous_match) {
71 /* assumes that ARC Firmware printf() can be used. */
72 printf("ambiguous platform detection between ");
73 print_platform(plattab[matched]);
74 for (i = 0; i < nplattab; i++) {
75 if (i == matched)
76 continue;
77 rv = (*plattab[i]->match)(plattab[i]);
78 if (rv < match)
79 continue;
80 if (--ambiguous_match)
81 printf(", ");
82 else
83 printf(" and ");
84 print_platform(plattab[i]);
85 }
86 printf(". ");
87 print_platform(plattab[matched]);
88 printf(" is chosen.\n");
89 }
90 if (match)
91 platform = plattab[matched];
92 return match;
93 }
94
95 int
platform_generic_match(struct platform * p)96 platform_generic_match(struct platform *p)
97 {
98
99 if (strcmp(arc_id, p->system_id) == 0 &&
100 (p->vendor_id == NULL || strcmp(arc_vendor_id, p->vendor_id) == 0))
101 return 1;
102
103 return 0;
104 }
105
106 void
platform_nop(void)107 platform_nop(void)
108 {
109 }
110