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ACPI: Add ThinkPad R61, ThinkPad T61 to OSI(Linux) white-list
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CommitLineData
1da177e4
LT
1/*
2 * blacklist.c
3 *
4 * Check to see if the given machine has a known bad ACPI BIOS
5 * or if the BIOS is too old.
d4b7dc49 6 * Check given machine against acpi_osi_dmi_table[].
1da177e4
LT
7 *
8 * Copyright (C) 2004 Len Brown <len.brown@intel.com>
9 * Copyright (C) 2002 Andy Grover <andrew.grover@intel.com>
10 *
11 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or (at
16 * your option) any later version.
17 *
18 * This program is distributed in the hope that it will be useful, but
19 * WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
21 * General Public License for more details.
22 *
23 * You should have received a copy of the GNU General Public License along
24 * with this program; if not, write to the Free Software Foundation, Inc.,
25 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
26 *
27 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
28 */
29
1da177e4
LT
30#include <linux/kernel.h>
31#include <linux/module.h>
32#include <linux/init.h>
33#include <linux/acpi.h>
34#include <acpi/acpi_bus.h>
35#include <linux/dmi.h>
36
4be44fcd
LB
37enum acpi_blacklist_predicates {
38 all_versions,
39 less_than_or_equal,
40 equal,
41 greater_than_or_equal,
1da177e4
LT
42};
43
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LB
44struct acpi_blacklist_item {
45 char oem_id[7];
46 char oem_table_id[9];
47 u32 oem_revision;
ad71860a 48 char *table;
4be44fcd
LB
49 enum acpi_blacklist_predicates oem_revision_predicate;
50 char *reason;
51 u32 is_critical_error;
1da177e4
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52};
53
d4b7dc49
LB
54static struct dmi_system_id acpi_osi_dmi_table[] __initdata;
55
1da177e4
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56/*
57 * POLICY: If *anything* doesn't work, put it on the blacklist.
58 * If they are critical errors, mark it critical, and abort driver load.
59 */
4be44fcd 60static struct acpi_blacklist_item acpi_blacklist[] __initdata = {
1da177e4 61 /* Compaq Presario 1700 */
ad71860a 62 {"PTLTD ", " DSDT ", 0x06040000, ACPI_SIG_DSDT, less_than_or_equal,
4be44fcd 63 "Multiple problems", 1},
1da177e4 64 /* Sony FX120, FX140, FX150? */
ad71860a 65 {"SONY ", "U0 ", 0x20010313, ACPI_SIG_DSDT, less_than_or_equal,
4be44fcd 66 "ACPI driver problem", 1},
1da177e4 67 /* Compaq Presario 800, Insyde BIOS */
ad71860a 68 {"INT440", "SYSFexxx", 0x00001001, ACPI_SIG_DSDT, less_than_or_equal,
4be44fcd 69 "Does not use _REG to protect EC OpRegions", 1},
1da177e4 70 /* IBM 600E - _ADR should return 7, but it returns 1 */
ad71860a 71 {"IBM ", "TP600E ", 0x00000105, ACPI_SIG_DSDT, less_than_or_equal,
4be44fcd 72 "Incorrect _ADR", 1},
ad71860a 73 {"ASUS\0\0", "P2B-S ", 0, ACPI_SIG_DSDT, all_versions,
4be44fcd 74 "Bogus PCI routing", 1},
1da177e4
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75
76 {""}
77};
78
1da177e4
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79#if CONFIG_ACPI_BLACKLIST_YEAR
80
4be44fcd 81static int __init blacklist_by_year(void)
1da177e4 82{
f083a329
AK
83 int year = dmi_get_year(DMI_BIOS_DATE);
84 /* Doesn't exist? Likely an old system */
5b27b176
AGACI
85 if (year == -1) {
86 printk(KERN_ERR PREFIX "no DMI BIOS year, "
87 "acpi=force is required to enable ACPI\n" );
f083a329 88 return 1;
5b27b176 89 }
f083a329 90 /* 0? Likely a buggy new BIOS */
5b27b176
AGACI
91 if (year == 0) {
92 printk(KERN_ERR PREFIX "DMI BIOS year==0, "
93 "assuming ACPI-capable machine\n" );
1da177e4 94 return 0;
5b27b176 95 }
1da177e4 96 if (year < CONFIG_ACPI_BLACKLIST_YEAR) {
4be44fcd
LB
97 printk(KERN_ERR PREFIX "BIOS age (%d) fails cutoff (%d), "
98 "acpi=force is required to enable ACPI\n",
99 year, CONFIG_ACPI_BLACKLIST_YEAR);
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100 return 1;
101 }
102 return 0;
103}
104#else
4be44fcd
LB
105static inline int blacklist_by_year(void)
106{
107 return 0;
108}
1da177e4
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109#endif
110
4be44fcd 111int __init acpi_blacklisted(void)
1da177e4
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112{
113 int i = 0;
114 int blacklisted = 0;
428f2112 115 struct acpi_table_header table_header;
1da177e4 116
4be44fcd 117 while (acpi_blacklist[i].oem_id[0] != '\0') {
ad71860a 118 if (acpi_get_table_header(acpi_blacklist[i].table, 0, &table_header)) {
1da177e4
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119 i++;
120 continue;
121 }
122
428f2112 123 if (strncmp(acpi_blacklist[i].oem_id, table_header.oem_id, 6)) {
1da177e4
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124 i++;
125 continue;
126 }
127
4be44fcd 128 if (strncmp
428f2112 129 (acpi_blacklist[i].oem_table_id, table_header.oem_table_id,
4be44fcd 130 8)) {
1da177e4
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131 i++;
132 continue;
133 }
134
135 if ((acpi_blacklist[i].oem_revision_predicate == all_versions)
4be44fcd
LB
136 || (acpi_blacklist[i].oem_revision_predicate ==
137 less_than_or_equal
428f2112 138 && table_header.oem_revision <=
4be44fcd
LB
139 acpi_blacklist[i].oem_revision)
140 || (acpi_blacklist[i].oem_revision_predicate ==
141 greater_than_or_equal
428f2112 142 && table_header.oem_revision >=
4be44fcd 143 acpi_blacklist[i].oem_revision)
1da177e4 144 || (acpi_blacklist[i].oem_revision_predicate == equal
428f2112 145 && table_header.oem_revision ==
4be44fcd
LB
146 acpi_blacklist[i].oem_revision)) {
147
148 printk(KERN_ERR PREFIX
149 "Vendor \"%6.6s\" System \"%8.8s\" "
150 "Revision 0x%x has a known ACPI BIOS problem.\n",
151 acpi_blacklist[i].oem_id,
152 acpi_blacklist[i].oem_table_id,
153 acpi_blacklist[i].oem_revision);
154
155 printk(KERN_ERR PREFIX
156 "Reason: %s. This is a %s error\n",
157 acpi_blacklist[i].reason,
158 (acpi_blacklist[i].
159 is_critical_error ? "non-recoverable" :
160 "recoverable"));
1da177e4
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161
162 blacklisted = acpi_blacklist[i].is_critical_error;
163 break;
4be44fcd 164 } else {
1da177e4
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165 i++;
166 }
167 }
168
169 blacklisted += blacklist_by_year();
170
d4b7dc49
LB
171 dmi_check_system(acpi_osi_dmi_table);
172
1da177e4
LT
173 return blacklisted;
174}
d4b7dc49 175#ifdef CONFIG_DMI
98f1db22
LB
176static int __init dmi_enable_osi_linux(const struct dmi_system_id *d)
177{
178 acpi_dmi_osi_linux(1, d); /* enable */
179 return 0;
180}
181
d4b7dc49 182static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
98f1db22
LB
183 /*
184 * _OSI(Linux) helps sound
185 * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad R61"),
186 * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T61"),
187 */
188 {
189 .callback = dmi_enable_osi_linux,
190 .ident = "Lenovo ThinkPad R61",
191 .matches = {
192 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
193 DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad R61"),
194 },
195 },
196 {
197 .callback = dmi_enable_osi_linux,
198 .ident = "Lenovo ThinkPad T61",
199 .matches = {
200 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
201 DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T61"),
202 },
203 },
d4b7dc49
LB
204 {}
205};
206
207#endif /* CONFIG_DMI */