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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#
2# ACPI Configuration
3#
4
Jan Engelhardt3f2c48c2007-07-03 01:40:59 -04005menuconfig ACPI
Frans Pop355ee5e2007-10-29 17:20:38 -04006 bool "ACPI (Advanced Configuration and Power Interface) Support"
Linus Torvalds1da177e2005-04-16 15:20:36 -07007 depends on !IA64_HP_SIM
8 depends on IA64 || X86
Adrian Bunk13001242006-03-28 17:04:00 -05009 depends on PCI
Andrew Morton6796a122006-12-19 12:56:13 -080010 depends on PM
Len Brown243b66e2007-02-15 22:34:36 -050011 select PNP
Linus Torvalds1da177e2005-04-16 15:20:36 -070012 default y
13 ---help---
14 Advanced Configuration and Power Interface (ACPI) support for
15 Linux requires an ACPI compliant platform (hardware/firmware),
16 and assumes the presence of OS-directed configuration and power
17 management (OSPM) software. This option will enlarge your
18 kernel by about 70K.
19
20 Linux ACPI provides a robust functional replacement for several
21 legacy configuration and power management interfaces, including
22 the Plug-and-Play BIOS specification (PnP BIOS), the
23 MultiProcessor Specification (MPS), and the Advanced Power
24 Management (APM) specification. If both ACPI and APM support
25 are configured, whichever is loaded first shall be used.
26
27 The ACPI SourceForge project contains the latest source code,
28 documentation, tools, mailing list subscription, and other
29 information. This project is available at:
30 <http://sourceforge.net/projects/acpi>
31
32 Linux support for ACPI is based on Intel Corporation's ACPI
33 Component Architecture (ACPI CA). For more information see:
34 <http://developer.intel.com/technology/iapc/acpi>
35
36 ACPI is an open industry specification co-developed by Compaq,
37 Intel, Microsoft, Phoenix, and Toshiba. The specification is
38 available at:
39 <http://www.acpi.info>
40
Len Brown3e11c3c2005-05-27 04:53:27 -040041if ACPI
42
Len Brown673d5b42007-07-28 03:33:16 -040043config ACPI_SLEEP
44 bool
Rafael J. Wysocki5d1e0722008-10-22 14:58:43 -040045 depends on SUSPEND || HIBERNATION
Len Brown673d5b42007-07-28 03:33:16 -040046 default y
47
Zhang Ruib981c592007-01-29 11:02:30 +080048config ACPI_PROCFS
Len Brownfb804712007-07-24 01:50:46 -040049 bool "Deprecated /proc/acpi files"
50 depends on PROC_FS
Zhang Ruib981c592007-01-29 11:02:30 +080051 ---help---
Len Brownfb804712007-07-24 01:50:46 -040052 For backwards compatibility, this option allows
Rolf Eike Beer405bbe9f2007-10-20 03:10:57 +020053 deprecated /proc/acpi/ files to exist, even when
Len Brownfb804712007-07-24 01:50:46 -040054 they have been replaced by functions in /sys.
55 The deprecated files (and their replacements) include:
56
Len Brown43532c82007-07-24 02:16:50 -040057 /proc/acpi/sleep (/sys/power/state)
Len Brownfb804712007-07-24 01:50:46 -040058 /proc/acpi/info (/sys/modules/acpi/parameters/acpica_version)
59 /proc/acpi/dsdt (/sys/firmware/acpi/tables/DSDT)
60 /proc/acpi/fadt (/sys/firmware/acpi/tables/FACP)
61 /proc/acpi/debug_layer (/sys/module/acpi/parameters/debug_layer)
62 /proc/acpi/debug_level (/sys/module/acpi/parameters/debug_level)
63
64 This option has no effect on /proc/acpi/ files
65 and functions which do not yet exist in /sys.
66
67 Say N to delete /proc/acpi/ files that have moved to /sys/
Alexey Starikovskiyfdcedbb2007-11-19 16:33:45 +030068config ACPI_PROCFS_POWER
Alan Cox9e527972008-01-03 16:31:42 +000069 bool "Deprecated power /proc/acpi directories"
Alexey Starikovskiyfdcedbb2007-11-19 16:33:45 +030070 depends on PROC_FS
71 default y
72 ---help---
73 For backwards compatibility, this option allows
Alan Cox9e527972008-01-03 16:31:42 +000074 deprecated power /proc/acpi/ directories to exist, even when
Alexey Starikovskiyfdcedbb2007-11-19 16:33:45 +030075 they have been replaced by functions in /sys.
Alan Cox9e527972008-01-03 16:31:42 +000076 The deprecated directories (and their replacements) include:
Alexey Starikovskiyfdcedbb2007-11-19 16:33:45 +030077 /proc/acpi/battery/* (/sys/class/power_supply/*)
78 /proc/acpi/ac_adapter/* (sys/class/power_supply/*)
Alan Cox9e527972008-01-03 16:31:42 +000079 This option has no effect on /proc/acpi/ directories
Alexey Starikovskiyfdcedbb2007-11-19 16:33:45 +030080 and functions, which do not yet exist in /sys
Zhang Ruib981c592007-01-29 11:02:30 +080081
Alan Cox9e527972008-01-03 16:31:42 +000082 Say N to delete power /proc/acpi/ directories that have moved to /sys/
83
Alexey Starikovskiy97749cd2008-01-01 14:27:24 -050084config ACPI_SYSFS_POWER
85 bool "Future power /sys interface"
86 select POWER_SUPPLY
87 default y
88 ---help---
89 Say N to disable power /sys interface
Alan Cox9e527972008-01-03 16:31:42 +000090
Len Brown14e04fb2007-08-23 15:20:26 -040091config ACPI_PROC_EVENT
92 bool "Deprecated /proc/acpi/event support"
93 depends on PROC_FS
Hugh Dickins721ebe02007-08-27 16:04:39 +010094 default y
Len Brown14e04fb2007-08-23 15:20:26 -040095 ---help---
96 A user-space daemon, acpi, typically read /proc/acpi/event
97 and handled all ACPI sub-system generated events.
98
99 These events are now delivered to user-space via
100 either the input layer, or as netlink events.
101
Hugh Dickins721ebe02007-08-27 16:04:39 +0100102 This build option enables the old code for legacy
Len Brown14e04fb2007-08-23 15:20:26 -0400103 user-space implementation. After some time, this will
104 be moved under CONFIG_ACPI_PROCFS, and then deleted.
105
Hugh Dickins721ebe02007-08-27 16:04:39 +0100106 Say Y here to retain the old behaviour. Say N if your
107 user-space is newer than kernel 2.6.23 (September 2007).
108
Linus Torvalds1da177e2005-04-16 15:20:36 -0700109config ACPI_AC
110 tristate "AC Adapter"
Alexey Starikovskiy5527c8b2007-10-29 17:08:59 -0400111 depends on X86
Len Brown07fefe42005-08-25 12:22:04 -0400112 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700113 help
114 This driver adds support for the AC Adapter object, which indicates
Len Brown07fefe42005-08-25 12:22:04 -0400115 whether a system is on AC, or not. If you have a system that can
116 switch between A/C and battery, say Y.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700117
118config ACPI_BATTERY
119 tristate "Battery"
Alexey Starikovskiy5527c8b2007-10-29 17:08:59 -0400120 depends on X86
Len Brown07fefe42005-08-25 12:22:04 -0400121 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700122 help
123 This driver adds support for battery information through
124 /proc/acpi/battery. If you have a mobile system with a battery,
125 say Y.
126
127config ACPI_BUTTON
128 tristate "Button"
Dmitry Torokhovc0968f02006-11-09 00:40:13 -0500129 depends on INPUT
Len Brown07fefe42005-08-25 12:22:04 -0400130 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700131 help
Len Brown07fefe42005-08-25 12:22:04 -0400132 This driver handles events on the power, sleep and lid buttons.
133 A daemon reads /proc/acpi/event and perform user-defined actions
134 such as shutting down the system. This is necessary for
135 software controlled poweroff.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700136
137config ACPI_VIDEO
138 tristate "Video"
Luming Yu23b0f012007-05-09 21:07:05 +0800139 depends on X86 && BACKLIGHT_CLASS_DEVICE && VIDEO_OUTPUT_CONTROL
Andreas Herrmann03e2bf22007-09-17 23:41:05 +0200140 depends on INPUT
Zhang Rui63c4ec92008-04-21 16:07:13 +0800141 select THERMAL
Linus Torvalds1da177e2005-04-16 15:20:36 -0700142 help
143 This driver implement the ACPI Extensions For Display Adapters
144 for integrated graphics devices on motherboard, as specified in
145 ACPI 2.0 Specification, Appendix B, allowing to perform some basic
146 control like defining the video POST device, retrieving EDID information
147 or to setup a video output, etc.
148 Note that this is an ref. implementation only. It may or may not work
149 for your integrated video device.
150
151config ACPI_FAN
152 tristate "Fan"
Zhang Rui63c4ec92008-04-21 16:07:13 +0800153 select THERMAL
Len Brown07fefe42005-08-25 12:22:04 -0400154 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700155 help
156 This driver adds support for ACPI fan devices, allowing user-mode
157 applications to perform basic fan control (on, off, status).
158
Len Brownc8f7a62c2006-07-09 17:22:28 -0400159config ACPI_DOCK
Shaohua Li898b0542008-09-27 11:10:28 +0800160 bool "Dock"
Len Brown8d7bff62006-07-09 22:09:57 -0400161 depends on EXPERIMENTAL
Len Brownc8f7a62c2006-07-09 17:22:28 -0400162 help
Shaohua Li4be93092008-08-28 10:06:44 +0800163 This driver adds support for ACPI controlled docking stations and removable
164 drive bays such as the IBM ultrabay or the Dell Module Bay.
Kristen Carlson Accardi01b57e72006-10-20 14:30:25 -0700165
Linus Torvalds1da177e2005-04-16 15:20:36 -0700166config ACPI_PROCESSOR
167 tristate "Processor"
Zhang Rui63c4ec92008-04-21 16:07:13 +0800168 select THERMAL
Len Brown07fefe42005-08-25 12:22:04 -0400169 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700170 help
171 This driver installs ACPI as the idle handler for Linux, and uses
172 ACPI C2 and C3 processor states to save power, on systems that
Len Brown07fefe42005-08-25 12:22:04 -0400173 support it. It is required by several flavors of cpufreq
174 Performance-state drivers.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700175
176config ACPI_HOTPLUG_CPU
Adrian Bunkcbfc1ba2005-07-30 04:18:00 -0400177 bool
178 depends on ACPI_PROCESSOR && HOTPLUG_CPU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700179 select ACPI_CONTAINER
Adrian Bunkcbfc1ba2005-07-30 04:18:00 -0400180 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700181
182config ACPI_THERMAL
183 tristate "Thermal Zone"
184 depends on ACPI_PROCESSOR
Zhang Rui3f655ef2008-01-17 15:51:11 +0800185 select THERMAL
Len Brown07fefe42005-08-25 12:22:04 -0400186 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700187 help
188 This driver adds support for ACPI thermal zones. Most mobile and
189 some desktop systems support ACPI thermal zones. It is HIGHLY
190 recommended that this option be enabled, as your processor(s)
191 may be damaged without it.
192
193config ACPI_NUMA
194 bool "NUMA support"
195 depends on NUMA
Yasunori Goto762834e2006-06-23 02:03:19 -0700196 depends on (X86 || IA64)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700197 default y if IA64_GENERIC || IA64_SGI_SN2
198
Carlos Corbachobff431e2008-02-05 02:17:04 +0000199config ACPI_WMI
200 tristate "WMI (EXPERIMENTAL)"
Len Brown9c2f7de2008-02-07 16:18:24 -0500201 depends on X86
Carlos Corbachobff431e2008-02-05 02:17:04 +0000202 depends on EXPERIMENTAL
203 help
Carlos Corbacho20b45142008-02-08 00:36:49 -0500204 This driver adds support for the ACPI-WMI (Windows Management
205 Instrumentation) mapper device (PNP0C14) found on some systems.
Carlos Corbachobff431e2008-02-05 02:17:04 +0000206
Carlos Corbacho20b45142008-02-08 00:36:49 -0500207 ACPI-WMI is a proprietary extension to ACPI to expose parts of the
208 ACPI firmware to userspace - this is done through various vendor
209 defined methods and data blocks in a PNP0C14 device, which are then
210 made available for userspace to call.
211
212 The implementation of this in Linux currently only exposes this to
213 other kernel space drivers.
214
215 This driver is a required dependency to build the firmware specific
216 drivers needed on many machines, including Acer and HP laptops.
217
218 It is safe to enable this driver even if your DSDT doesn't define
219 any ACPI-WMI devices.
Carlos Corbachobff431e2008-02-05 02:17:04 +0000220
Linus Torvalds1da177e2005-04-16 15:20:36 -0700221config ACPI_ASUS
222 tristate "ASUS/Medion Laptop Extras"
223 depends on X86
Holger Macht2039a6e2006-10-20 14:30:29 -0700224 select BACKLIGHT_CLASS_DEVICE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700225 ---help---
226 This driver provides support for extra features of ACPI-compatible
227 ASUS laptops. As some of Medion laptops are made by ASUS, it may also
228 support some Medion laptops (such as 9675 for example). It makes all
229 the extra buttons generate standard ACPI events that go through
230 /proc/acpi/events, and (on some models) adds support for changing the
231 display brightness and output, switching the LCD backlight on and off,
232 and most importantly, allows you to blink those fancy LEDs intended
233 for reporting mail and wireless status.
234
235 Note: display switching code is currently considered EXPERIMENTAL,
236 toying with these values may even lock your machine.
Corentin Chary85091b72007-01-26 14:04:30 +0100237
Linus Torvalds1da177e2005-04-16 15:20:36 -0700238 All settings are changed via /proc/acpi/asus directory entries. Owner
239 and group for these entries can be set with asus_uid and asus_gid
240 parameters.
Corentin Chary85091b72007-01-26 14:04:30 +0100241
Linus Torvalds1da177e2005-04-16 15:20:36 -0700242 More information and a userspace daemon for handling the extra buttons
243 at <http://sourceforge.net/projects/acpi4asus/>.
Corentin Chary85091b72007-01-26 14:04:30 +0100244
Linus Torvalds1da177e2005-04-16 15:20:36 -0700245 If you have an ACPI-compatible ASUS laptop, say Y or M here. This
246 driver is still under development, so if your laptop is unsupported or
247 something works not quite as expected, please use the mailing list
Corentin Chary85091b72007-01-26 14:04:30 +0100248 available on the above page (acpi4asus-user@lists.sourceforge.net).
249
250 NOTE: This driver is deprecated and will probably be removed soon,
251 use asus-laptop instead.
252
Linus Torvalds1da177e2005-04-16 15:20:36 -0700253config ACPI_TOSHIBA
254 tristate "Toshiba Laptop Extras"
Randy Dunlapb3cef8f2008-09-19 14:06:59 -0700255 depends on X86 && INPUT
philipl@overt.orgc41a40c2008-08-30 11:57:39 -0400256 select INPUT_POLLDEV
257 select NET
258 select RFKILL
Holger Machtc9263552006-10-20 14:30:29 -0700259 select BACKLIGHT_CLASS_DEVICE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700260 ---help---
261 This driver adds support for access to certain system settings
262 on "legacy free" Toshiba laptops. These laptops can be recognized by
263 their lack of a BIOS setup menu and APM support.
264
265 On these machines, all system configuration is handled through the
266 ACPI. This driver is required for access to controls not covered
267 by the general ACPI drivers, such as LCD brightness, video output,
268 etc.
269
270 This driver differs from the non-ACPI Toshiba laptop driver (located
271 under "Processor type and features") in several aspects.
272 Configuration is accessed by reading and writing text files in the
273 /proc tree instead of by program interface to /dev. Furthermore, no
274 power management functions are exposed, as those are handled by the
275 general ACPI drivers.
276
277 More information about this driver is available at
278 <http://memebeam.org/toys/ToshibaAcpiDriver>.
279
280 If you have a legacy free Toshiba laptop (such as the Libretto L1
281 series), say Y.
282
Randy Dunlap7ce95732008-02-22 11:25:04 -0800283config ACPI_CUSTOM_DSDT_FILE
284 string "Custom DSDT Table file to include"
285 default ""
Linus Torvalds1da177e2005-04-16 15:20:36 -0700286 depends on !STANDALONE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700287 help
Len Brownd89e9d62008-02-06 19:28:02 -0500288 This option supports a custom DSDT by linking it into the kernel.
289 See Documentation/acpi/dsdt-override.txt
290
Uwe Zeisbergerc30fe7f2006-03-24 18:23:14 +0100291 Enter the full path name to the file which includes the AmlCode
292 declaration.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700293
Randy Dunlap7ce95732008-02-22 11:25:04 -0800294 If unsure, don't enter a file name.
295
296config ACPI_CUSTOM_DSDT
297 bool
298 default ACPI_CUSTOM_DSDT_FILE != ""
299
Linus Torvalds1da177e2005-04-16 15:20:36 -0700300config ACPI_BLACKLIST_YEAR
Andi Kleen2eb1bdb2006-02-26 04:18:43 +0100301 int "Disable ACPI for systems before Jan 1st this year" if X86_32
Linus Torvalds1da177e2005-04-16 15:20:36 -0700302 default 0
303 help
304 enter a 4-digit year, eg. 2001 to disable ACPI by default
305 on platforms with DMI BIOS date before January 1st that year.
306 "acpi=force" can be used to override this mechanism.
307
308 Enter 0 to disable this mechanism and allow ACPI to
309 run by default no matter what the year. (default)
310
311config ACPI_DEBUG
312 bool "Debug Statements"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700313 default n
314 help
315 The ACPI driver can optionally report errors with a great deal
316 of verbosity. Saying Y enables these statements. This will increase
317 your kernel size by around 50K.
318
Thomas Renninger798d91032007-05-31 17:20:39 +0200319config ACPI_DEBUG_FUNC_TRACE
320 bool "Additionally enable ACPI function tracing"
321 default n
322 depends on ACPI_DEBUG
323 help
324 ACPI Debug Statements slow down ACPI processing. Function trace
325 is about half of the penalty and is rarely useful.
326
Alex Chiang8344b562008-06-10 15:30:42 -0600327config ACPI_PCI_SLOT
328 tristate "PCI slot detection driver"
329 default n
330 help
331 This driver will attempt to discover all PCI slots in your system,
332 and creates entries in /sys/bus/pci/slots/. This feature can
333 help you correlate PCI bus addresses with the physical geography
334 of your slots. If you are unsure, say N.
335
Linus Torvalds1da177e2005-04-16 15:20:36 -0700336config ACPI_SYSTEM
337 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700338 default y
339 help
340 This driver will enable your system to shut down using ACPI, and
341 dump your ACPI DSDT table using /proc/acpi/dsdt.
342
Linus Torvalds1da177e2005-04-16 15:20:36 -0700343config X86_PM_TIMER
Andi Kleene78256b2006-02-26 04:18:37 +0100344 bool "Power Management Timer Support" if EMBEDDED
Linus Torvalds1da177e2005-04-16 15:20:36 -0700345 depends on X86
Len Brown07fefe42005-08-25 12:22:04 -0400346 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700347 help
348 The Power Management Timer is available on all ACPI-capable,
349 in most cases even if ACPI is unusable or blacklisted.
350
Matt LaPlantec73a6682006-10-03 22:24:43 +0200351 This timing source is not affected by power management features
Linus Torvalds1da177e2005-04-16 15:20:36 -0700352 like aggressive processor idling, throttling, frequency and/or
353 voltage scaling, unlike the commonly used Time Stamp Counter
354 (TSC) timing source.
355
Andi Kleene78256b2006-02-26 04:18:37 +0100356 You should nearly always say Y here because many modern
357 systems require this timer.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700358
359config ACPI_CONTAINER
360 tristate "ACPI0004,PNP0A05 and PNP0A06 Container Driver (EXPERIMENTAL)"
361 depends on EXPERIMENTAL
362 default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO)
363 ---help---
Keiichiro Tokunaga45b1b192005-03-02 00:00:00 -0500364 This allows _physical_ insertion and removal of CPUs and memory.
365 This can be useful, for example, on NUMA machines that support
366 ACPI based physical hotplug of nodes, or non-NUMA machines that
367 support physical cpu/memory hot-plug.
368
369 If one selects "m", this driver can be loaded with
370 "modprobe acpi_container".
Linus Torvalds1da177e2005-04-16 15:20:36 -0700371
372config ACPI_HOTPLUG_MEMORY
373 tristate "Memory Hotplug"
Yasunori Gotobc02af92006-06-27 02:53:30 -0700374 depends on MEMORY_HOTPLUG
Linus Torvalds1da177e2005-04-16 15:20:36 -0700375 default n
376 help
377 This driver adds supports for ACPI Memory Hotplug. This driver
378 provides support for fielding notifications on ACPI memory
379 devices (PNP0C80) which represent memory ranges that may be
380 onlined or offlined during runtime.
381
382 Enabling this driver assumes that your platform hardware
383 and firmware have support for hot-plugging physical memory. If
384 your system does not support physically adding or ripping out
Matt LaPlantec73a6682006-10-03 22:24:43 +0200385 memory DIMMs at some platform defined granularity (individually
Linus Torvalds1da177e2005-04-16 15:20:36 -0700386 or as a bank) at runtime, then you need not enable this driver.
387
388 If one selects "m," this driver can be loaded using the following
389 command:
390 $>modprobe acpi_memhotplug
Rich Townsend3f86b832006-07-01 11:36:54 -0400391
392config ACPI_SBS
Alexey Starikovskiy94f6c082007-09-26 19:43:48 +0400393 tristate "Smart Battery System"
Vladimir Lebedevb4150fc2007-03-19 17:45:50 +0300394 depends on X86
Rich Townsend3f86b832006-07-01 11:36:54 -0400395 help
Alexey Starikovskiy94f6c082007-09-26 19:43:48 +0400396 This driver adds support for the Smart Battery System, another
397 type of access to battery information, found on some laptops.
Rich Townsend3f86b832006-07-01 11:36:54 -0400398
Linus Torvalds1da177e2005-04-16 15:20:36 -0700399endif # ACPI