| /* |
| * blacklist.c |
| * |
| * Check to see if the given machine has a known bad ACPI BIOS |
| * or if the BIOS is too old. |
| * Check given machine against acpi_osi_dmi_table[]. |
| * |
| * Copyright (C) 2004 Len Brown <len.brown@intel.com> |
| * Copyright (C) 2002 Andy Grover <andrew.grover@intel.com> |
| * |
| * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or (at |
| * your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write to the Free Software Foundation, Inc., |
| * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. |
| * |
| * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| */ |
| |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/init.h> |
| #include <linux/acpi.h> |
| #include <acpi/acpi_bus.h> |
| #include <linux/dmi.h> |
| |
| #include "internal.h" |
| |
| enum acpi_blacklist_predicates { |
| all_versions, |
| less_than_or_equal, |
| equal, |
| greater_than_or_equal, |
| }; |
| |
| struct acpi_blacklist_item { |
| char oem_id[7]; |
| char oem_table_id[9]; |
| u32 oem_revision; |
| char *table; |
| enum acpi_blacklist_predicates oem_revision_predicate; |
| char *reason; |
| u32 is_critical_error; |
| }; |
| |
| static struct dmi_system_id acpi_osi_dmi_table[] __initdata; |
| |
| /* |
| * POLICY: If *anything* doesn't work, put it on the blacklist. |
| * If they are critical errors, mark it critical, and abort driver load. |
| */ |
| static struct acpi_blacklist_item acpi_blacklist[] __initdata = { |
| /* Compaq Presario 1700 */ |
| {"PTLTD ", " DSDT ", 0x06040000, ACPI_SIG_DSDT, less_than_or_equal, |
| "Multiple problems", 1}, |
| /* Sony FX120, FX140, FX150? */ |
| {"SONY ", "U0 ", 0x20010313, ACPI_SIG_DSDT, less_than_or_equal, |
| "ACPI driver problem", 1}, |
| /* Compaq Presario 800, Insyde BIOS */ |
| {"INT440", "SYSFexxx", 0x00001001, ACPI_SIG_DSDT, less_than_or_equal, |
| "Does not use _REG to protect EC OpRegions", 1}, |
| /* IBM 600E - _ADR should return 7, but it returns 1 */ |
| {"IBM ", "TP600E ", 0x00000105, ACPI_SIG_DSDT, less_than_or_equal, |
| "Incorrect _ADR", 1}, |
| |
| {""} |
| }; |
| |
| #if CONFIG_ACPI_BLACKLIST_YEAR |
| |
| static int __init blacklist_by_year(void) |
| { |
| int year; |
| |
| /* Doesn't exist? Likely an old system */ |
| if (!dmi_get_date(DMI_BIOS_DATE, &year, NULL, NULL)) { |
| printk(KERN_ERR PREFIX "no DMI BIOS year, " |
| "acpi=force is required to enable ACPI\n" ); |
| return 1; |
| } |
| /* 0? Likely a buggy new BIOS */ |
| if (year == 0) { |
| printk(KERN_ERR PREFIX "DMI BIOS year==0, " |
| "assuming ACPI-capable machine\n" ); |
| return 0; |
| } |
| if (year < CONFIG_ACPI_BLACKLIST_YEAR) { |
| printk(KERN_ERR PREFIX "BIOS age (%d) fails cutoff (%d), " |
| "acpi=force is required to enable ACPI\n", |
| year, CONFIG_ACPI_BLACKLIST_YEAR); |
| return 1; |
| } |
| return 0; |
| } |
| #else |
| static inline int blacklist_by_year(void) |
| { |
| return 0; |
| } |
| #endif |
| |
| int __init acpi_blacklisted(void) |
| { |
| int i = 0; |
| int blacklisted = 0; |
| struct acpi_table_header table_header; |
| |
| while (acpi_blacklist[i].oem_id[0] != '\0') { |
| if (acpi_get_table_header(acpi_blacklist[i].table, 0, &table_header)) { |
| i++; |
| continue; |
| } |
| |
| if (strncmp(acpi_blacklist[i].oem_id, table_header.oem_id, 6)) { |
| i++; |
| continue; |
| } |
| |
| if (strncmp |
| (acpi_blacklist[i].oem_table_id, table_header.oem_table_id, |
| 8)) { |
| i++; |
| continue; |
| } |
| |
| if ((acpi_blacklist[i].oem_revision_predicate == all_versions) |
| || (acpi_blacklist[i].oem_revision_predicate == |
| less_than_or_equal |
| && table_header.oem_revision <= |
| acpi_blacklist[i].oem_revision) |
| || (acpi_blacklist[i].oem_revision_predicate == |
| greater_than_or_equal |
| && table_header.oem_revision >= |
| acpi_blacklist[i].oem_revision) |
| || (acpi_blacklist[i].oem_revision_predicate == equal |
| && table_header.oem_revision == |
| acpi_blacklist[i].oem_revision)) { |
| |
| printk(KERN_ERR PREFIX |
| "Vendor \"%6.6s\" System \"%8.8s\" " |
| "Revision 0x%x has a known ACPI BIOS problem.\n", |
| acpi_blacklist[i].oem_id, |
| acpi_blacklist[i].oem_table_id, |
| acpi_blacklist[i].oem_revision); |
| |
| printk(KERN_ERR PREFIX |
| "Reason: %s. This is a %s error\n", |
| acpi_blacklist[i].reason, |
| (acpi_blacklist[i]. |
| is_critical_error ? "non-recoverable" : |
| "recoverable")); |
| |
| blacklisted = acpi_blacklist[i].is_critical_error; |
| break; |
| } else { |
| i++; |
| } |
| } |
| |
| blacklisted += blacklist_by_year(); |
| |
| dmi_check_system(acpi_osi_dmi_table); |
| |
| return blacklisted; |
| } |
| #ifdef CONFIG_DMI |
| static int __init dmi_enable_osi_linux(const struct dmi_system_id *d) |
| { |
| acpi_dmi_osi_linux(1, d); /* enable */ |
| return 0; |
| } |
| static int __init dmi_disable_osi_vista(const struct dmi_system_id *d) |
| { |
| printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident); |
| acpi_osi_setup("!Windows 2006"); |
| return 0; |
| } |
| static int __init dmi_disable_osi_win7(const struct dmi_system_id *d) |
| { |
| printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident); |
| acpi_osi_setup("!Windows 2009"); |
| return 0; |
| } |
| |
| static struct dmi_system_id acpi_osi_dmi_table[] __initdata = { |
| { |
| .callback = dmi_disable_osi_vista, |
| .ident = "Fujitsu Siemens", |
| .matches = { |
| DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), |
| DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Mobile V5505"), |
| }, |
| }, |
| { |
| .callback = dmi_disable_osi_vista, |
| .ident = "Sony VGN-NS10J_S", |
| .matches = { |
| DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), |
| DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NS10J_S"), |
| }, |
| }, |
| { |
| .callback = dmi_disable_osi_vista, |
| .ident = "Sony VGN-SR290J", |
| .matches = { |
| DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), |
| DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SR290J"), |
| }, |
| }, |
| { |
| .callback = dmi_disable_osi_vista, |
| .ident = "VGN-NS50B_L", |
| .matches = { |
| DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), |
| DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NS50B_L"), |
| }, |
| }, |
| { |
| .callback = dmi_disable_osi_vista, |
| .ident = "Toshiba Satellite L355", |
| .matches = { |
| DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), |
| DMI_MATCH(DMI_PRODUCT_VERSION, "Satellite L355"), |
| }, |
| }, |
| { |
| .callback = dmi_disable_osi_win7, |
| .ident = "ASUS K50IJ", |
| .matches = { |
| DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."), |
| DMI_MATCH(DMI_PRODUCT_NAME, "K50IJ"), |
| }, |
| }, |
| { |
| .callback = dmi_disable_osi_vista, |
| .ident = "Toshiba P305D", |
| .matches = { |
| DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), |
| DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P305D"), |
| }, |
| }, |
| |
| /* |
| * BIOS invocation of _OSI(Linux) is almost always a BIOS bug. |
| * Linux ignores it, except for the machines enumerated below. |
| */ |
| |
| /* |
| * Lenovo has a mix of systems OSI(Linux) situations |
| * and thus we can not wildcard the vendor. |
| * |
| * _OSI(Linux) helps sound |
| * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad R61"), |
| * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T61"), |
| * T400, T500 |
| * _OSI(Linux) has Linux specific hooks |
| * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X61"), |
| * _OSI(Linux) is a NOP: |
| * DMI_MATCH(DMI_PRODUCT_VERSION, "3000 N100"), |
| * DMI_MATCH(DMI_PRODUCT_VERSION, "LENOVO3000 V100"), |
| */ |
| { |
| .callback = dmi_enable_osi_linux, |
| .ident = "Lenovo ThinkPad R61", |
| .matches = { |
| DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), |
| DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad R61"), |
| }, |
| }, |
| { |
| .callback = dmi_enable_osi_linux, |
| .ident = "Lenovo ThinkPad T61", |
| .matches = { |
| DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), |
| DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T61"), |
| }, |
| }, |
| { |
| .callback = dmi_enable_osi_linux, |
| .ident = "Lenovo ThinkPad X61", |
| .matches = { |
| DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), |
| DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X61"), |
| }, |
| }, |
| { |
| .callback = dmi_enable_osi_linux, |
| .ident = "Lenovo ThinkPad T400", |
| .matches = { |
| DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), |
| DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T400"), |
| }, |
| }, |
| { |
| .callback = dmi_enable_osi_linux, |
| .ident = "Lenovo ThinkPad T500", |
| .matches = { |
| DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), |
| DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T500"), |
| }, |
| }, |
| {} |
| }; |
| |
| #endif /* CONFIG_DMI */ |