1 /* $NetBSD: acpi_quirks.c,v 1.22 2020/12/06 11:38:28 jmcneill Exp $ */
2
3 /*-
4 * Copyright (c) 2011 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30 /*
31 * Copyright 2002 Wasabi Systems, Inc.
32 * All rights reserved.
33 *
34 * Written by Frank van der Linden for Wasabi Systems, Inc.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 * 1. Redistributions of source code must retain the above copyright
40 * notice, this list of conditions and the following disclaimer.
41 * 2. Redistributions in binary form must reproduce the above copyright
42 * notice, this list of conditions and the following disclaimer in the
43 * documentation and/or other materials provided with the distribution.
44 * 3. All advertising materials mentioning features or use of this software
45 * must display the following acknowledgement:
46 * This product includes software developed for the NetBSD Project by
47 * Wasabi Systems, Inc.
48 * 4. The name of Wasabi Systems, Inc. may not be used to endorse
49 * or promote products derived from this software without specific prior
50 * written permission.
51 *
52 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
53 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
54 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
55 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
56 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
57 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
58 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
59 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
60 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
61 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
62 * POSSIBILITY OF SUCH DAMAGE.
63 */
64
65 #include <sys/cdefs.h>
66
67 __KERNEL_RCSID(0, "$NetBSD: acpi_quirks.c,v 1.22 2020/12/06 11:38:28 jmcneill Exp $");
68
69 #include "opt_acpi.h"
70
71 #include <sys/param.h>
72
73 #include <dev/acpi/acpireg.h>
74 #include <dev/acpi/acpivar.h>
75
76 #define _COMPONENT ACPI_UTILITIES
77 ACPI_MODULE_NAME ("acpi_quirks")
78
79 #define AQ_GT 0 /* > */
80 #define AQ_LT 1 /* < */
81 #define AQ_GTE 2 /* >= */
82 #define AQ_LTE 3 /* <= */
83 #define AQ_EQ 4 /* == */
84
85 static int acpi_quirks_revcmp(uint32_t, uint32_t, int);
86
87 static const struct acpi_quirk acpi_quirks[] = {
88
89 { ACPI_SIG_FADT, "ASUS ", 0x30303031, AQ_LTE, "CUV4X-D ",
90 ACPI_QUIRK_BROKEN },
91
92 { ACPI_SIG_FADT, "PTLTD ", 0x06040000, AQ_LTE, " FACP ",
93 ACPI_QUIRK_BROKEN },
94
95 { ACPI_SIG_FADT, "NVIDIA", 0x06040000, AQ_EQ, "CK8 ",
96 ACPI_QUIRK_IRQ0 },
97
98 { ACPI_SIG_FADT, "HP ", 0x06040012, AQ_LTE, "HWPC20F ",
99 ACPI_QUIRK_BROKEN },
100 };
101
102 static int
acpi_quirks_revcmp(uint32_t tabval,uint32_t wanted,int op)103 acpi_quirks_revcmp(uint32_t tabval, uint32_t wanted, int op)
104 {
105
106 switch (op) {
107
108 case AQ_GT:
109 return (tabval > wanted) ? 0 : 1;
110
111 case AQ_LT:
112 return (tabval < wanted) ? 0 : 1;
113
114 case AQ_LTE:
115 return (tabval <= wanted) ? 0 : 1;
116
117 case AQ_GTE:
118 return (tabval >= wanted) ? 0 : 1;
119
120 case AQ_EQ:
121 return (tabval == wanted) ? 0 : 1;
122
123 default:
124 return 1;
125 }
126 }
127
128 #ifdef ACPI_BLACKLIST_YEAR
129 static int
acpi_quirks_bios_year(void)130 acpi_quirks_bios_year(void)
131 {
132 const char *datestr = pmf_get_platform("bios-date");
133 unsigned long date;
134
135 if (datestr == NULL)
136 return -1;
137
138 date = strtoul(datestr, NULL, 10);
139 if (date == 0 || date == ULONG_MAX)
140 return -1;
141 if (date < 19000000 || date > 99999999)
142 return -1;
143 return date / 10000;
144 }
145 #endif
146
147 /*
148 * Simple function to search the quirk table. Only to be
149 * used after AcpiLoadTables() has been successfully called.
150 */
151 int
acpi_find_quirks(void)152 acpi_find_quirks(void)
153 {
154 ACPI_TABLE_HEADER fadt, dsdt, xsdt, *hdr;
155 const struct acpi_quirk *aq;
156 ACPI_STATUS rv;
157 size_t i, len;
158
159 #ifdef ACPI_BLACKLIST_YEAR
160 int year = acpi_quirks_bios_year();
161
162 if (year != -1 && year <= ACPI_BLACKLIST_YEAR)
163 return ACPI_QUIRK_OLDBIOS;
164 #endif
165
166 rv = AcpiGetTableHeader(ACPI_SIG_FADT, 0, &fadt);
167
168 if (ACPI_FAILURE(rv))
169 (void)memset(&fadt, 0, sizeof(fadt));
170
171 rv = AcpiGetTableHeader(ACPI_SIG_DSDT, 0, &dsdt);
172
173 if (ACPI_FAILURE(rv))
174 (void)memset(&dsdt, 0, sizeof(dsdt));
175
176 rv = AcpiGetTableHeader(ACPI_SIG_XSDT, 0, &xsdt);
177
178 if (ACPI_FAILURE(rv))
179 (void)memset(&xsdt, 0, sizeof(xsdt));
180
181 for (i = 0; i < __arraycount(acpi_quirks); i++) {
182
183 aq = &acpi_quirks[i];
184
185 if (strncmp(aq->aq_tabletype, ACPI_SIG_DSDT, 4) == 0)
186 hdr = &dsdt;
187 else if (strncmp(aq->aq_tabletype, ACPI_SIG_XSDT, 4) == 0)
188 hdr = &xsdt;
189 else if (strncmp(aq->aq_tabletype, ACPI_SIG_FADT, 4) == 0)
190 hdr = &fadt;
191 else {
192 continue;
193 }
194
195 len = strlen(aq->aq_oemid);
196
197 if (strncmp(aq->aq_oemid, hdr->OemId, len) != 0)
198 continue;
199
200 if (acpi_quirks_revcmp(aq->aq_oemrev,
201 hdr->OemRevision, aq->aq_cmpop) != 0)
202 continue;
203
204 len = strlen(aq->aq_tabid);
205
206 if (strncmp(aq->aq_tabid, hdr->OemTableId, len) != 0)
207 continue;
208
209 return aq->aq_quirks;
210 }
211
212 return 0;
213 }
214