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