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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.
6 * Check given machine against acpi_osi_dmi_table[].
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
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
37#include "internal.h"
38
39enum acpi_blacklist_predicates {
40 all_versions,
41 less_than_or_equal,
42 equal,
43 greater_than_or_equal,
44};
45
46struct acpi_blacklist_item {
47 char oem_id[7];
48 char oem_table_id[9];
49 u32 oem_revision;
50 char *table;
51 enum acpi_blacklist_predicates oem_revision_predicate;
52 char *reason;
53 u32 is_critical_error;
54};
55
56static struct dmi_system_id acpi_osi_dmi_table[] __initdata;
57
58/*
59 * POLICY: If *anything* doesn't work, put it on the blacklist.
60 * If they are critical errors, mark it critical, and abort driver load.
61 */
62static struct acpi_blacklist_item acpi_blacklist[] __initdata = {
63 /* Compaq Presario 1700 */
64 {"PTLTD ", " DSDT ", 0x06040000, ACPI_SIG_DSDT, less_than_or_equal,
65 "Multiple problems", 1},
66 /* Sony FX120, FX140, FX150? */
67 {"SONY ", "U0 ", 0x20010313, ACPI_SIG_DSDT, less_than_or_equal,
68 "ACPI driver problem", 1},
69 /* Compaq Presario 800, Insyde BIOS */
70 {"INT440", "SYSFexxx", 0x00001001, ACPI_SIG_DSDT, less_than_or_equal,
71 "Does not use _REG to protect EC OpRegions", 1},
72 /* IBM 600E - _ADR should return 7, but it returns 1 */
73 {"IBM ", "TP600E ", 0x00000105, ACPI_SIG_DSDT, less_than_or_equal,
74 "Incorrect _ADR", 1},
75
76 {""}
77};
78
79#if CONFIG_ACPI_BLACKLIST_YEAR
80
81static int __init blacklist_by_year(void)
82{
83 int year;
84
85 /* Doesn't exist? Likely an old system */
86 if (!dmi_get_date(DMI_BIOS_DATE, &year, NULL, NULL)) {
87 printk(KERN_ERR PREFIX "no DMI BIOS year, "
88 "acpi=force is required to enable ACPI\n" );
89 return 1;
90 }
91 /* 0? Likely a buggy new BIOS */
92 if (year == 0) {
93 printk(KERN_ERR PREFIX "DMI BIOS year==0, "
94 "assuming ACPI-capable machine\n" );
95 return 0;
96 }
97 if (year < CONFIG_ACPI_BLACKLIST_YEAR) {
98 printk(KERN_ERR PREFIX "BIOS age (%d) fails cutoff (%d), "
99 "acpi=force is required to enable ACPI\n",
100 year, CONFIG_ACPI_BLACKLIST_YEAR);
101 return 1;
102 }
103 return 0;
104}
105#else
106static inline int blacklist_by_year(void)
107{
108 return 0;
109}
110#endif
111
112int __init acpi_blacklisted(void)
113{
114 int i = 0;
115 int blacklisted = 0;
116 struct acpi_table_header table_header;
117
118 while (acpi_blacklist[i].oem_id[0] != '\0') {
119 if (acpi_get_table_header(acpi_blacklist[i].table, 0, &table_header)) {
120 i++;
121 continue;
122 }
123
124 if (strncmp(acpi_blacklist[i].oem_id, table_header.oem_id, 6)) {
125 i++;
126 continue;
127 }
128
129 if (strncmp
130 (acpi_blacklist[i].oem_table_id, table_header.oem_table_id,
131 8)) {
132 i++;
133 continue;
134 }
135
136 if ((acpi_blacklist[i].oem_revision_predicate == all_versions)
137 || (acpi_blacklist[i].oem_revision_predicate ==
138 less_than_or_equal
139 && table_header.oem_revision <=
140 acpi_blacklist[i].oem_revision)
141 || (acpi_blacklist[i].oem_revision_predicate ==
142 greater_than_or_equal
143 && table_header.oem_revision >=
144 acpi_blacklist[i].oem_revision)
145 || (acpi_blacklist[i].oem_revision_predicate == equal
146 && table_header.oem_revision ==
147 acpi_blacklist[i].oem_revision)) {
148
149 printk(KERN_ERR PREFIX
150 "Vendor \"%6.6s\" System \"%8.8s\" "
151 "Revision 0x%x has a known ACPI BIOS problem.\n",
152 acpi_blacklist[i].oem_id,
153 acpi_blacklist[i].oem_table_id,
154 acpi_blacklist[i].oem_revision);
155
156 printk(KERN_ERR PREFIX
157 "Reason: %s. This is a %s error\n",
158 acpi_blacklist[i].reason,
159 (acpi_blacklist[i].
160 is_critical_error ? "non-recoverable" :
161 "recoverable"));
162
163 blacklisted = acpi_blacklist[i].is_critical_error;
164 break;
165 } else {
166 i++;
167 }
168 }
169
170 blacklisted += blacklist_by_year();
171
172 dmi_check_system(acpi_osi_dmi_table);
173
174 return blacklisted;
175}
176#ifdef CONFIG_DMI
177static int __init dmi_enable_osi_linux(const struct dmi_system_id *d)
178{
179 acpi_dmi_osi_linux(1, d); /* enable */
180 return 0;
181}
182static int __init dmi_disable_osi_vista(const struct dmi_system_id *d)
183{
184 printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident);
185 acpi_osi_setup("!Windows 2006");
186 acpi_osi_setup("!Windows 2006 SP1");
187 acpi_osi_setup("!Windows 2006 SP2");
188 return 0;
189}
190static int __init dmi_disable_osi_win7(const struct dmi_system_id *d)
191{
192 printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident);
193 acpi_osi_setup("!Windows 2009");
194 return 0;
195}
196
197static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
198 {
199 .callback = dmi_disable_osi_vista,
200 .ident = "Fujitsu Siemens",
201 .matches = {
202 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
203 DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Mobile V5505"),
204 },
205 },
206 {
207 /*
208 * There have a NVIF method in MSI GX723 DSDT need call by Nvidia
209 * driver (e.g. nouveau) when user press brightness hotkey.
210 * Currently, nouveau driver didn't do the job and it causes there
211 * have a infinite while loop in DSDT when user press hotkey.
212 * We add MSI GX723's dmi information to this table for workaround
213 * this issue.
214 * Will remove MSI GX723 from the table after nouveau grows support.
215 */
216 .callback = dmi_disable_osi_vista,
217 .ident = "MSI GX723",
218 .matches = {
219 DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
220 DMI_MATCH(DMI_PRODUCT_NAME, "GX723"),
221 },
222 },
223 {
224 .callback = dmi_disable_osi_vista,
225 .ident = "Sony VGN-NS10J_S",
226 .matches = {
227 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
228 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NS10J_S"),
229 },
230 },
231 {
232 .callback = dmi_disable_osi_vista,
233 .ident = "Sony VGN-SR290J",
234 .matches = {
235 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
236 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SR290J"),
237 },
238 },
239 {
240 .callback = dmi_disable_osi_vista,
241 .ident = "VGN-NS50B_L",
242 .matches = {
243 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
244 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NS50B_L"),
245 },
246 },
247 {
248 .callback = dmi_disable_osi_vista,
249 .ident = "Toshiba Satellite L355",
250 .matches = {
251 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
252 DMI_MATCH(DMI_PRODUCT_VERSION, "Satellite L355"),
253 },
254 },
255 {
256 .callback = dmi_disable_osi_win7,
257 .ident = "ASUS K50IJ",
258 .matches = {
259 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
260 DMI_MATCH(DMI_PRODUCT_NAME, "K50IJ"),
261 },
262 },
263 {
264 .callback = dmi_disable_osi_vista,
265 .ident = "Toshiba P305D",
266 .matches = {
267 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
268 DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P305D"),
269 },
270 },
271
272 /*
273 * BIOS invocation of _OSI(Linux) is almost always a BIOS bug.
274 * Linux ignores it, except for the machines enumerated below.
275 */
276
277 /*
278 * Lenovo has a mix of systems OSI(Linux) situations
279 * and thus we can not wildcard the vendor.
280 *
281 * _OSI(Linux) helps sound
282 * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad R61"),
283 * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T61"),
284 * T400, T500
285 * _OSI(Linux) has Linux specific hooks
286 * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X61"),
287 * _OSI(Linux) is a NOP:
288 * DMI_MATCH(DMI_PRODUCT_VERSION, "3000 N100"),
289 * DMI_MATCH(DMI_PRODUCT_VERSION, "LENOVO3000 V100"),
290 */
291 {
292 .callback = dmi_enable_osi_linux,
293 .ident = "Lenovo ThinkPad R61",
294 .matches = {
295 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
296 DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad R61"),
297 },
298 },
299 {
300 .callback = dmi_enable_osi_linux,
301 .ident = "Lenovo ThinkPad T61",
302 .matches = {
303 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
304 DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T61"),
305 },
306 },
307 {
308 .callback = dmi_enable_osi_linux,
309 .ident = "Lenovo ThinkPad X61",
310 .matches = {
311 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
312 DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X61"),
313 },
314 },
315 {
316 .callback = dmi_enable_osi_linux,
317 .ident = "Lenovo ThinkPad T400",
318 .matches = {
319 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
320 DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T400"),
321 },
322 },
323 {
324 .callback = dmi_enable_osi_linux,
325 .ident = "Lenovo ThinkPad T500",
326 .matches = {
327 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
328 DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T500"),
329 },
330 },
331 {}
332};
333
334#endif /* CONFIG_DMI */
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.
6 * Check given machine against acpi_osi_dmi_table[].
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 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
24 */
25
26#include <linux/kernel.h>
27#include <linux/init.h>
28#include <linux/acpi.h>
29#include <linux/dmi.h>
30
31#include "internal.h"
32
33enum acpi_blacklist_predicates {
34 all_versions,
35 less_than_or_equal,
36 equal,
37 greater_than_or_equal,
38};
39
40struct acpi_blacklist_item {
41 char oem_id[7];
42 char oem_table_id[9];
43 u32 oem_revision;
44 char *table;
45 enum acpi_blacklist_predicates oem_revision_predicate;
46 char *reason;
47 u32 is_critical_error;
48};
49
50static struct dmi_system_id acpi_osi_dmi_table[] __initdata;
51
52/*
53 * POLICY: If *anything* doesn't work, put it on the blacklist.
54 * If they are critical errors, mark it critical, and abort driver load.
55 */
56static struct acpi_blacklist_item acpi_blacklist[] __initdata = {
57 /* Compaq Presario 1700 */
58 {"PTLTD ", " DSDT ", 0x06040000, ACPI_SIG_DSDT, less_than_or_equal,
59 "Multiple problems", 1},
60 /* Sony FX120, FX140, FX150? */
61 {"SONY ", "U0 ", 0x20010313, ACPI_SIG_DSDT, less_than_or_equal,
62 "ACPI driver problem", 1},
63 /* Compaq Presario 800, Insyde BIOS */
64 {"INT440", "SYSFexxx", 0x00001001, ACPI_SIG_DSDT, less_than_or_equal,
65 "Does not use _REG to protect EC OpRegions", 1},
66 /* IBM 600E - _ADR should return 7, but it returns 1 */
67 {"IBM ", "TP600E ", 0x00000105, ACPI_SIG_DSDT, less_than_or_equal,
68 "Incorrect _ADR", 1},
69
70 {""}
71};
72
73int __init acpi_blacklisted(void)
74{
75 int i = 0;
76 int blacklisted = 0;
77 struct acpi_table_header table_header;
78
79 while (acpi_blacklist[i].oem_id[0] != '\0') {
80 if (acpi_get_table_header(acpi_blacklist[i].table, 0, &table_header)) {
81 i++;
82 continue;
83 }
84
85 if (strncmp(acpi_blacklist[i].oem_id, table_header.oem_id, 6)) {
86 i++;
87 continue;
88 }
89
90 if (strncmp
91 (acpi_blacklist[i].oem_table_id, table_header.oem_table_id,
92 8)) {
93 i++;
94 continue;
95 }
96
97 if ((acpi_blacklist[i].oem_revision_predicate == all_versions)
98 || (acpi_blacklist[i].oem_revision_predicate ==
99 less_than_or_equal
100 && table_header.oem_revision <=
101 acpi_blacklist[i].oem_revision)
102 || (acpi_blacklist[i].oem_revision_predicate ==
103 greater_than_or_equal
104 && table_header.oem_revision >=
105 acpi_blacklist[i].oem_revision)
106 || (acpi_blacklist[i].oem_revision_predicate == equal
107 && table_header.oem_revision ==
108 acpi_blacklist[i].oem_revision)) {
109
110 printk(KERN_ERR PREFIX
111 "Vendor \"%6.6s\" System \"%8.8s\" "
112 "Revision 0x%x has a known ACPI BIOS problem.\n",
113 acpi_blacklist[i].oem_id,
114 acpi_blacklist[i].oem_table_id,
115 acpi_blacklist[i].oem_revision);
116
117 printk(KERN_ERR PREFIX
118 "Reason: %s. This is a %s error\n",
119 acpi_blacklist[i].reason,
120 (acpi_blacklist[i].
121 is_critical_error ? "non-recoverable" :
122 "recoverable"));
123
124 blacklisted = acpi_blacklist[i].is_critical_error;
125 break;
126 } else {
127 i++;
128 }
129 }
130
131 dmi_check_system(acpi_osi_dmi_table);
132
133 return blacklisted;
134}
135#ifdef CONFIG_DMI
136static int __init dmi_enable_osi_linux(const struct dmi_system_id *d)
137{
138 acpi_dmi_osi_linux(1, d); /* enable */
139 return 0;
140}
141static int __init dmi_disable_osi_vista(const struct dmi_system_id *d)
142{
143 printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident);
144 acpi_osi_setup("!Windows 2006");
145 acpi_osi_setup("!Windows 2006 SP1");
146 acpi_osi_setup("!Windows 2006 SP2");
147 return 0;
148}
149static int __init dmi_disable_osi_win7(const struct dmi_system_id *d)
150{
151 printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident);
152 acpi_osi_setup("!Windows 2009");
153 return 0;
154}
155static int __init dmi_disable_osi_win8(const struct dmi_system_id *d)
156{
157 printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident);
158 acpi_osi_setup("!Windows 2012");
159 return 0;
160}
161#ifdef CONFIG_ACPI_REV_OVERRIDE_POSSIBLE
162static int __init dmi_enable_rev_override(const struct dmi_system_id *d)
163{
164 printk(KERN_NOTICE PREFIX "DMI detected: %s (force ACPI _REV to 5)\n",
165 d->ident);
166 acpi_rev_override_setup(NULL);
167 return 0;
168}
169#endif
170
171static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
172 {
173 .callback = dmi_disable_osi_vista,
174 .ident = "Fujitsu Siemens",
175 .matches = {
176 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
177 DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Mobile V5505"),
178 },
179 },
180 {
181 /*
182 * There have a NVIF method in MSI GX723 DSDT need call by Nvidia
183 * driver (e.g. nouveau) when user press brightness hotkey.
184 * Currently, nouveau driver didn't do the job and it causes there
185 * have a infinite while loop in DSDT when user press hotkey.
186 * We add MSI GX723's dmi information to this table for workaround
187 * this issue.
188 * Will remove MSI GX723 from the table after nouveau grows support.
189 */
190 .callback = dmi_disable_osi_vista,
191 .ident = "MSI GX723",
192 .matches = {
193 DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
194 DMI_MATCH(DMI_PRODUCT_NAME, "GX723"),
195 },
196 },
197 {
198 .callback = dmi_disable_osi_vista,
199 .ident = "Sony VGN-NS10J_S",
200 .matches = {
201 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
202 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NS10J_S"),
203 },
204 },
205 {
206 .callback = dmi_disable_osi_vista,
207 .ident = "Sony VGN-SR290J",
208 .matches = {
209 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
210 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SR290J"),
211 },
212 },
213 {
214 .callback = dmi_disable_osi_vista,
215 .ident = "VGN-NS50B_L",
216 .matches = {
217 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
218 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NS50B_L"),
219 },
220 },
221 {
222 .callback = dmi_disable_osi_vista,
223 .ident = "VGN-SR19XN",
224 .matches = {
225 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
226 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SR19XN"),
227 },
228 },
229 {
230 .callback = dmi_disable_osi_vista,
231 .ident = "Toshiba Satellite L355",
232 .matches = {
233 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
234 DMI_MATCH(DMI_PRODUCT_VERSION, "Satellite L355"),
235 },
236 },
237 {
238 .callback = dmi_disable_osi_win7,
239 .ident = "ASUS K50IJ",
240 .matches = {
241 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
242 DMI_MATCH(DMI_PRODUCT_NAME, "K50IJ"),
243 },
244 },
245 {
246 .callback = dmi_disable_osi_vista,
247 .ident = "Toshiba P305D",
248 .matches = {
249 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
250 DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P305D"),
251 },
252 },
253 {
254 .callback = dmi_disable_osi_vista,
255 .ident = "Toshiba NB100",
256 .matches = {
257 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
258 DMI_MATCH(DMI_PRODUCT_NAME, "NB100"),
259 },
260 },
261
262 /*
263 * The wireless hotkey does not work on those machines when
264 * returning true for _OSI("Windows 2012")
265 */
266 {
267 .callback = dmi_disable_osi_win8,
268 .ident = "Dell Inspiron 7737",
269 .matches = {
270 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
271 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7737"),
272 },
273 },
274 {
275 .callback = dmi_disable_osi_win8,
276 .ident = "Dell Inspiron 7537",
277 .matches = {
278 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
279 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7537"),
280 },
281 },
282 {
283 .callback = dmi_disable_osi_win8,
284 .ident = "Dell Inspiron 5437",
285 .matches = {
286 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
287 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5437"),
288 },
289 },
290 {
291 .callback = dmi_disable_osi_win8,
292 .ident = "Dell Inspiron 3437",
293 .matches = {
294 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
295 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 3437"),
296 },
297 },
298 {
299 .callback = dmi_disable_osi_win8,
300 .ident = "Dell Vostro 3446",
301 .matches = {
302 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
303 DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 3446"),
304 },
305 },
306 {
307 .callback = dmi_disable_osi_win8,
308 .ident = "Dell Vostro 3546",
309 .matches = {
310 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
311 DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 3546"),
312 },
313 },
314
315 /*
316 * BIOS invocation of _OSI(Linux) is almost always a BIOS bug.
317 * Linux ignores it, except for the machines enumerated below.
318 */
319
320 /*
321 * Without this this EEEpc exports a non working WMI interface, with
322 * this it exports a working "good old" eeepc_laptop interface, fixing
323 * both brightness control, and rfkill not working.
324 */
325 {
326 .callback = dmi_enable_osi_linux,
327 .ident = "Asus EEE PC 1015PX",
328 .matches = {
329 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer INC."),
330 DMI_MATCH(DMI_PRODUCT_NAME, "1015PX"),
331 },
332 },
333
334#ifdef CONFIG_ACPI_REV_OVERRIDE_POSSIBLE
335 /*
336 * DELL XPS 13 (2015) switches sound between HDA and I2S
337 * depending on the ACPI _REV callback. If userspace supports
338 * I2S sufficiently (or if you do not care about sound), you
339 * can safely disable this quirk.
340 */
341 {
342 .callback = dmi_enable_rev_override,
343 .ident = "DELL XPS 13 (2015)",
344 .matches = {
345 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
346 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9343"),
347 },
348 },
349#endif
350 {}
351};
352
353#endif /* CONFIG_DMI */