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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
6 bool "ACPI Support (Advanced Configuration and Power Interface) Support"
Len Browndb5034222007-02-02 21:05:04 -05007 depends on !X86_NUMAQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07008 depends on !X86_VISWS
9 depends on !IA64_HP_SIM
10 depends on IA64 || X86
Adrian Bunk13001242006-03-28 17:04:00 -050011 depends on PCI
Andrew Morton6796a122006-12-19 12:56:13 -080012 depends on PM
Len Brown243b66e2007-02-15 22:34:36 -050013 select PNP
Linus Torvalds1da177e2005-04-16 15:20:36 -070014 default y
15 ---help---
16 Advanced Configuration and Power Interface (ACPI) support for
17 Linux requires an ACPI compliant platform (hardware/firmware),
18 and assumes the presence of OS-directed configuration and power
19 management (OSPM) software. This option will enlarge your
20 kernel by about 70K.
21
22 Linux ACPI provides a robust functional replacement for several
23 legacy configuration and power management interfaces, including
24 the Plug-and-Play BIOS specification (PnP BIOS), the
25 MultiProcessor Specification (MPS), and the Advanced Power
26 Management (APM) specification. If both ACPI and APM support
27 are configured, whichever is loaded first shall be used.
28
29 The ACPI SourceForge project contains the latest source code,
30 documentation, tools, mailing list subscription, and other
31 information. This project is available at:
32 <http://sourceforge.net/projects/acpi>
33
34 Linux support for ACPI is based on Intel Corporation's ACPI
35 Component Architecture (ACPI CA). For more information see:
36 <http://developer.intel.com/technology/iapc/acpi>
37
38 ACPI is an open industry specification co-developed by Compaq,
39 Intel, Microsoft, Phoenix, and Toshiba. The specification is
40 available at:
41 <http://www.acpi.info>
42
Len Brown3e11c3c2005-05-27 04:53:27 -040043if ACPI
44
Linus Torvalds1da177e2005-04-16 15:20:36 -070045config ACPI_SLEEP
Len Brownbfea6c22005-08-25 12:15:11 -040046 bool "Sleep States"
Li Shaohua5a72e042005-06-25 14:55:06 -070047 depends on X86 && (!SMP || SUSPEND_SMP)
Linus Torvalds1da177e2005-04-16 15:20:36 -070048 default y
49 ---help---
50 This option adds support for ACPI suspend states.
51
52 With this option, you will be able to put the system "to sleep".
53 Sleep states are low power states for the system and devices. All
54 of the system operating state is saved to either memory or disk
55 (depending on the state), to allow the system to resume operation
56 quickly at your request.
57
58 Although this option sounds really nifty, barely any of the device
59 drivers have been converted to the new driver model and hence few
60 have proper power management support.
61
62 This option is not recommended for anyone except those doing driver
63 power management development.
64
65config ACPI_SLEEP_PROC_FS
66 bool
67 depends on ACPI_SLEEP && PROC_FS
68 default y
69
Len Brownebb6e1a2005-04-14 23:12:56 -040070config ACPI_SLEEP_PROC_SLEEP
71 bool "/proc/acpi/sleep (deprecated)"
72 depends on ACPI_SLEEP_PROC_FS
73 default n
74 ---help---
75 Create /proc/acpi/sleep
76 Deprecated by /sys/power/state
77
Zhang Ruib981c592007-01-29 11:02:30 +080078config ACPI_PROCFS
Len Brownfb804712007-07-24 01:50:46 -040079 bool "Deprecated /proc/acpi files"
80 depends on PROC_FS
Zhang Ruib981c592007-01-29 11:02:30 +080081 ---help---
Len Brownfb804712007-07-24 01:50:46 -040082 For backwards compatibility, this option allows
83 depricated /proc/acpi/ files to exist, even when
84 they have been replaced by functions in /sys.
85 The deprecated files (and their replacements) include:
86
87 /proc/acpi/info (/sys/modules/acpi/parameters/acpica_version)
88 /proc/acpi/dsdt (/sys/firmware/acpi/tables/DSDT)
89 /proc/acpi/fadt (/sys/firmware/acpi/tables/FACP)
90 /proc/acpi/debug_layer (/sys/module/acpi/parameters/debug_layer)
91 /proc/acpi/debug_level (/sys/module/acpi/parameters/debug_level)
92
93 This option has no effect on /proc/acpi/ files
94 and functions which do not yet exist in /sys.
95
96 Say N to delete /proc/acpi/ files that have moved to /sys/
Zhang Ruib981c592007-01-29 11:02:30 +080097
Linus Torvalds1da177e2005-04-16 15:20:36 -070098config ACPI_AC
99 tristate "AC Adapter"
100 depends on X86
Len Brown07fefe42005-08-25 12:22:04 -0400101 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700102 help
103 This driver adds support for the AC Adapter object, which indicates
Len Brown07fefe42005-08-25 12:22:04 -0400104 whether a system is on AC, or not. If you have a system that can
105 switch between A/C and battery, say Y.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700106
107config ACPI_BATTERY
108 tristate "Battery"
109 depends on X86
Len Brown07fefe42005-08-25 12:22:04 -0400110 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700111 help
112 This driver adds support for battery information through
113 /proc/acpi/battery. If you have a mobile system with a battery,
114 say Y.
115
116config ACPI_BUTTON
117 tristate "Button"
Dmitry Torokhovc0968f02006-11-09 00:40:13 -0500118 depends on INPUT
Len Brown07fefe42005-08-25 12:22:04 -0400119 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700120 help
Len Brown07fefe42005-08-25 12:22:04 -0400121 This driver handles events on the power, sleep and lid buttons.
122 A daemon reads /proc/acpi/event and perform user-defined actions
123 such as shutting down the system. This is necessary for
124 software controlled poweroff.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125
126config ACPI_VIDEO
127 tristate "Video"
Luming Yu23b0f012007-05-09 21:07:05 +0800128 depends on X86 && BACKLIGHT_CLASS_DEVICE && VIDEO_OUTPUT_CONTROL
Linus Torvalds1da177e2005-04-16 15:20:36 -0700129 help
130 This driver implement the ACPI Extensions For Display Adapters
131 for integrated graphics devices on motherboard, as specified in
132 ACPI 2.0 Specification, Appendix B, allowing to perform some basic
133 control like defining the video POST device, retrieving EDID information
134 or to setup a video output, etc.
135 Note that this is an ref. implementation only. It may or may not work
136 for your integrated video device.
137
138config ACPI_FAN
139 tristate "Fan"
Len Brown07fefe42005-08-25 12:22:04 -0400140 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141 help
142 This driver adds support for ACPI fan devices, allowing user-mode
143 applications to perform basic fan control (on, off, status).
144
Len Brownc8f7a622006-07-09 17:22:28 -0400145config ACPI_DOCK
146 tristate "Dock"
Len Brown8d7bff62006-07-09 22:09:57 -0400147 depends on EXPERIMENTAL
Len Brownc8f7a622006-07-09 17:22:28 -0400148 help
149 This driver adds support for ACPI controlled docking stations
150
Kristen Carlson Accardi01b57e72006-10-20 14:30:25 -0700151config ACPI_BAY
Len Brown0ed1e382007-02-02 22:39:16 -0500152 tristate "Removable Drive Bay (EXPERIMENTAL)"
Kristen Carlson Accardi01b57e72006-10-20 14:30:25 -0700153 depends on EXPERIMENTAL
Kristen Carlson Accardib1a316f2007-02-28 20:13:17 -0800154 depends on ACPI_DOCK
Kristen Carlson Accardi01b57e72006-10-20 14:30:25 -0700155 help
156 This driver adds support for ACPI controlled removable drive
157 bays such as the IBM ultrabay or the Dell Module Bay.
158
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159config ACPI_PROCESSOR
160 tristate "Processor"
Len Brown07fefe42005-08-25 12:22:04 -0400161 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700162 help
163 This driver installs ACPI as the idle handler for Linux, and uses
164 ACPI C2 and C3 processor states to save power, on systems that
Len Brown07fefe42005-08-25 12:22:04 -0400165 support it. It is required by several flavors of cpufreq
166 Performance-state drivers.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700167
168config ACPI_HOTPLUG_CPU
Adrian Bunkcbfc1ba2005-07-30 04:18:00 -0400169 bool
170 depends on ACPI_PROCESSOR && HOTPLUG_CPU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700171 select ACPI_CONTAINER
Adrian Bunkcbfc1ba2005-07-30 04:18:00 -0400172 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700173
174config ACPI_THERMAL
175 tristate "Thermal Zone"
176 depends on ACPI_PROCESSOR
Len Brown07fefe42005-08-25 12:22:04 -0400177 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700178 help
179 This driver adds support for ACPI thermal zones. Most mobile and
180 some desktop systems support ACPI thermal zones. It is HIGHLY
181 recommended that this option be enabled, as your processor(s)
182 may be damaged without it.
183
184config ACPI_NUMA
185 bool "NUMA support"
186 depends on NUMA
Yasunori Goto762834e2006-06-23 02:03:19 -0700187 depends on (X86 || IA64)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700188 default y if IA64_GENERIC || IA64_SGI_SN2
189
190config ACPI_ASUS
191 tristate "ASUS/Medion Laptop Extras"
192 depends on X86
Holger Macht2039a6e2006-10-20 14:30:29 -0700193 select BACKLIGHT_CLASS_DEVICE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194 ---help---
195 This driver provides support for extra features of ACPI-compatible
196 ASUS laptops. As some of Medion laptops are made by ASUS, it may also
197 support some Medion laptops (such as 9675 for example). It makes all
198 the extra buttons generate standard ACPI events that go through
199 /proc/acpi/events, and (on some models) adds support for changing the
200 display brightness and output, switching the LCD backlight on and off,
201 and most importantly, allows you to blink those fancy LEDs intended
202 for reporting mail and wireless status.
203
204 Note: display switching code is currently considered EXPERIMENTAL,
205 toying with these values may even lock your machine.
Corentin Chary85091b72007-01-26 14:04:30 +0100206
Linus Torvalds1da177e2005-04-16 15:20:36 -0700207 All settings are changed via /proc/acpi/asus directory entries. Owner
208 and group for these entries can be set with asus_uid and asus_gid
209 parameters.
Corentin Chary85091b72007-01-26 14:04:30 +0100210
Linus Torvalds1da177e2005-04-16 15:20:36 -0700211 More information and a userspace daemon for handling the extra buttons
212 at <http://sourceforge.net/projects/acpi4asus/>.
Corentin Chary85091b72007-01-26 14:04:30 +0100213
Linus Torvalds1da177e2005-04-16 15:20:36 -0700214 If you have an ACPI-compatible ASUS laptop, say Y or M here. This
215 driver is still under development, so if your laptop is unsupported or
216 something works not quite as expected, please use the mailing list
Corentin Chary85091b72007-01-26 14:04:30 +0100217 available on the above page (acpi4asus-user@lists.sourceforge.net).
218
219 NOTE: This driver is deprecated and will probably be removed soon,
220 use asus-laptop instead.
221
Linus Torvalds1da177e2005-04-16 15:20:36 -0700222config ACPI_TOSHIBA
223 tristate "Toshiba Laptop Extras"
224 depends on X86
Holger Machtc9263552006-10-20 14:30:29 -0700225 select BACKLIGHT_CLASS_DEVICE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700226 ---help---
227 This driver adds support for access to certain system settings
228 on "legacy free" Toshiba laptops. These laptops can be recognized by
229 their lack of a BIOS setup menu and APM support.
230
231 On these machines, all system configuration is handled through the
232 ACPI. This driver is required for access to controls not covered
233 by the general ACPI drivers, such as LCD brightness, video output,
234 etc.
235
236 This driver differs from the non-ACPI Toshiba laptop driver (located
237 under "Processor type and features") in several aspects.
238 Configuration is accessed by reading and writing text files in the
239 /proc tree instead of by program interface to /dev. Furthermore, no
240 power management functions are exposed, as those are handled by the
241 general ACPI drivers.
242
243 More information about this driver is available at
244 <http://memebeam.org/toys/ToshibaAcpiDriver>.
245
246 If you have a legacy free Toshiba laptop (such as the Libretto L1
247 series), say Y.
248
249config ACPI_CUSTOM_DSDT
250 bool "Include Custom DSDT"
251 depends on !STANDALONE
252 default n
253 help
Matt LaPlantec73a6682006-10-03 22:24:43 +0200254 This option is to load a custom ACPI DSDT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700255 If you don't know what that is, say N.
256
257config ACPI_CUSTOM_DSDT_FILE
258 string "Custom DSDT Table file to include"
259 depends on ACPI_CUSTOM_DSDT
260 default ""
261 help
Uwe Zeisbergerc30fe7f2006-03-24 18:23:14 +0100262 Enter the full path name to the file which includes the AmlCode
263 declaration.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700264
265config ACPI_BLACKLIST_YEAR
Andi Kleen2eb1bdb2006-02-26 04:18:43 +0100266 int "Disable ACPI for systems before Jan 1st this year" if X86_32
Linus Torvalds1da177e2005-04-16 15:20:36 -0700267 default 0
268 help
269 enter a 4-digit year, eg. 2001 to disable ACPI by default
270 on platforms with DMI BIOS date before January 1st that year.
271 "acpi=force" can be used to override this mechanism.
272
273 Enter 0 to disable this mechanism and allow ACPI to
274 run by default no matter what the year. (default)
275
276config ACPI_DEBUG
277 bool "Debug Statements"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700278 default n
279 help
280 The ACPI driver can optionally report errors with a great deal
281 of verbosity. Saying Y enables these statements. This will increase
282 your kernel size by around 50K.
283
Thomas Renninger798d9102007-05-31 17:20:39 +0200284config ACPI_DEBUG_FUNC_TRACE
285 bool "Additionally enable ACPI function tracing"
286 default n
287 depends on ACPI_DEBUG
288 help
289 ACPI Debug Statements slow down ACPI processing. Function trace
290 is about half of the penalty and is rarely useful.
291
Linus Torvalds1da177e2005-04-16 15:20:36 -0700292config ACPI_EC
293 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700294 default y
295 help
296 This driver is required on some systems for the proper operation of
297 the battery and thermal drivers. If you are compiling for a
298 mobile system, say Y.
299
300config ACPI_POWER
301 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700302 default y
303
Linus Torvalds1da177e2005-04-16 15:20:36 -0700304config ACPI_SYSTEM
305 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700306 default y
307 help
308 This driver will enable your system to shut down using ACPI, and
309 dump your ACPI DSDT table using /proc/acpi/dsdt.
310
Linus Torvalds1da177e2005-04-16 15:20:36 -0700311config X86_PM_TIMER
Andi Kleene78256b2006-02-26 04:18:37 +0100312 bool "Power Management Timer Support" if EMBEDDED
Linus Torvalds1da177e2005-04-16 15:20:36 -0700313 depends on X86
Len Brown07fefe42005-08-25 12:22:04 -0400314 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700315 help
316 The Power Management Timer is available on all ACPI-capable,
317 in most cases even if ACPI is unusable or blacklisted.
318
Matt LaPlantec73a6682006-10-03 22:24:43 +0200319 This timing source is not affected by power management features
Linus Torvalds1da177e2005-04-16 15:20:36 -0700320 like aggressive processor idling, throttling, frequency and/or
321 voltage scaling, unlike the commonly used Time Stamp Counter
322 (TSC) timing source.
323
Andi Kleene78256b2006-02-26 04:18:37 +0100324 You should nearly always say Y here because many modern
325 systems require this timer.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700326
327config ACPI_CONTAINER
328 tristate "ACPI0004,PNP0A05 and PNP0A06 Container Driver (EXPERIMENTAL)"
329 depends on EXPERIMENTAL
330 default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO)
331 ---help---
Keiichiro Tokunaga45b1b192005-03-02 00:00:00 -0500332 This allows _physical_ insertion and removal of CPUs and memory.
333 This can be useful, for example, on NUMA machines that support
334 ACPI based physical hotplug of nodes, or non-NUMA machines that
335 support physical cpu/memory hot-plug.
336
337 If one selects "m", this driver can be loaded with
338 "modprobe acpi_container".
Linus Torvalds1da177e2005-04-16 15:20:36 -0700339
340config ACPI_HOTPLUG_MEMORY
341 tristate "Memory Hotplug"
Yasunori Gotobc02af92006-06-27 02:53:30 -0700342 depends on MEMORY_HOTPLUG
Linus Torvalds1da177e2005-04-16 15:20:36 -0700343 default n
344 help
345 This driver adds supports for ACPI Memory Hotplug. This driver
346 provides support for fielding notifications on ACPI memory
347 devices (PNP0C80) which represent memory ranges that may be
348 onlined or offlined during runtime.
349
350 Enabling this driver assumes that your platform hardware
351 and firmware have support for hot-plugging physical memory. If
352 your system does not support physically adding or ripping out
Matt LaPlantec73a6682006-10-03 22:24:43 +0200353 memory DIMMs at some platform defined granularity (individually
Linus Torvalds1da177e2005-04-16 15:20:36 -0700354 or as a bank) at runtime, then you need not enable this driver.
355
356 If one selects "m," this driver can be loaded using the following
357 command:
358 $>modprobe acpi_memhotplug
Rich Townsend3f86b832006-07-01 11:36:54 -0400359
360config ACPI_SBS
361 tristate "Smart Battery System (EXPERIMENTAL)"
Vladimir Lebedevb4150fc2007-03-19 17:45:50 +0300362 depends on X86
Rich Townsend3f86b832006-07-01 11:36:54 -0400363 depends on EXPERIMENTAL
Rich Townsend3f86b832006-07-01 11:36:54 -0400364 help
365 This driver adds support for the Smart Battery System.
Rich Townsend3f86b832006-07-01 11:36:54 -0400366 A "Smart Battery" is quite old and quite rare compared
367 to today's ACPI "Control Method" battery.
368
Linus Torvalds1da177e2005-04-16 15:20:36 -0700369endif # ACPI