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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#
2# ACPI Configuration
3#
4
5menu "ACPI (Advanced Configuration and Power Interface) Support"
6 depends on !X86_VISWS
7 depends on !IA64_HP_SIM
8 depends on IA64 || X86
9
10config ACPI
11 bool "ACPI Support"
12 depends on IA64 || X86
Adrian Bunk13001242006-03-28 17:04:00 -050013 depends on PCI
Len Brown6153df7b2005-08-25 12:27:09 -040014 select PM
Linus Torvalds1da177e2005-04-16 15:20:36 -070015 default y
16 ---help---
17 Advanced Configuration and Power Interface (ACPI) support for
18 Linux requires an ACPI compliant platform (hardware/firmware),
19 and assumes the presence of OS-directed configuration and power
20 management (OSPM) software. This option will enlarge your
21 kernel by about 70K.
22
23 Linux ACPI provides a robust functional replacement for several
24 legacy configuration and power management interfaces, including
25 the Plug-and-Play BIOS specification (PnP BIOS), the
26 MultiProcessor Specification (MPS), and the Advanced Power
27 Management (APM) specification. If both ACPI and APM support
28 are configured, whichever is loaded first shall be used.
29
30 The ACPI SourceForge project contains the latest source code,
31 documentation, tools, mailing list subscription, and other
32 information. This project is available at:
33 <http://sourceforge.net/projects/acpi>
34
35 Linux support for ACPI is based on Intel Corporation's ACPI
36 Component Architecture (ACPI CA). For more information see:
37 <http://developer.intel.com/technology/iapc/acpi>
38
39 ACPI is an open industry specification co-developed by Compaq,
40 Intel, Microsoft, Phoenix, and Toshiba. The specification is
41 available at:
42 <http://www.acpi.info>
43
Len Brown3e11c3c2005-05-27 04:53:27 -040044if ACPI
45
Linus Torvalds1da177e2005-04-16 15:20:36 -070046config ACPI_SLEEP
Len Brownbfea6c22005-08-25 12:15:11 -040047 bool "Sleep States"
Li Shaohua5a72e042005-06-25 14:55:06 -070048 depends on X86 && (!SMP || SUSPEND_SMP)
Len Brownbfea6c22005-08-25 12:15:11 -040049 depends on PM
Linus Torvalds1da177e2005-04-16 15:20:36 -070050 default y
51 ---help---
52 This option adds support for ACPI suspend states.
53
54 With this option, you will be able to put the system "to sleep".
55 Sleep states are low power states for the system and devices. All
56 of the system operating state is saved to either memory or disk
57 (depending on the state), to allow the system to resume operation
58 quickly at your request.
59
60 Although this option sounds really nifty, barely any of the device
61 drivers have been converted to the new driver model and hence few
62 have proper power management support.
63
64 This option is not recommended for anyone except those doing driver
65 power management development.
66
67config ACPI_SLEEP_PROC_FS
68 bool
69 depends on ACPI_SLEEP && PROC_FS
70 default y
71
Len Brownebb6e1a62005-04-14 23:12:56 -040072config ACPI_SLEEP_PROC_SLEEP
73 bool "/proc/acpi/sleep (deprecated)"
74 depends on ACPI_SLEEP_PROC_FS
75 default n
76 ---help---
77 Create /proc/acpi/sleep
78 Deprecated by /sys/power/state
79
Linus Torvalds1da177e2005-04-16 15:20:36 -070080config ACPI_AC
81 tristate "AC Adapter"
82 depends on X86
Len Brown07fefe42005-08-25 12:22:04 -040083 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -070084 help
85 This driver adds support for the AC Adapter object, which indicates
Len Brown07fefe42005-08-25 12:22:04 -040086 whether a system is on AC, or not. If you have a system that can
87 switch between A/C and battery, say Y.
Linus Torvalds1da177e2005-04-16 15:20:36 -070088
89config ACPI_BATTERY
90 tristate "Battery"
91 depends on X86
Len Brown07fefe42005-08-25 12:22:04 -040092 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -070093 help
94 This driver adds support for battery information through
95 /proc/acpi/battery. If you have a mobile system with a battery,
96 say Y.
97
98config ACPI_BUTTON
99 tristate "Button"
Len Brown07fefe42005-08-25 12:22:04 -0400100 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700101 help
Len Brown07fefe42005-08-25 12:22:04 -0400102 This driver handles events on the power, sleep and lid buttons.
103 A daemon reads /proc/acpi/event and perform user-defined actions
104 such as shutting down the system. This is necessary for
105 software controlled poweroff.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700106
107config ACPI_VIDEO
108 tristate "Video"
Len Browneb7b6b32005-08-25 12:08:25 -0400109 depends on X86
Linus Torvalds1da177e2005-04-16 15:20:36 -0700110 help
111 This driver implement the ACPI Extensions For Display Adapters
112 for integrated graphics devices on motherboard, as specified in
113 ACPI 2.0 Specification, Appendix B, allowing to perform some basic
114 control like defining the video POST device, retrieving EDID information
115 or to setup a video output, etc.
116 Note that this is an ref. implementation only. It may or may not work
117 for your integrated video device.
118
Luming Yufb9802f2005-03-18 18:03:45 -0500119config ACPI_HOTKEY
Len Brownbfea6c22005-08-25 12:15:11 -0400120 tristate "Generic Hotkey (EXPERIMENTAL)"
Luming Yufb9802f2005-03-18 18:03:45 -0500121 depends on EXPERIMENTAL
Len Browneb7b6b32005-08-25 12:08:25 -0400122 depends on X86
Luming Yu79cda7d2005-08-03 18:07:59 -0400123 default n
Luming Yufb9802f2005-03-18 18:03:45 -0500124 help
Luming Yu79cda7d2005-08-03 18:07:59 -0400125 Experimental consolidated hotkey driver.
126 If you are unsure, say N.
Luming Yufb9802f2005-03-18 18:03:45 -0500127
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128config ACPI_FAN
129 tristate "Fan"
Len Brown07fefe42005-08-25 12:22:04 -0400130 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700131 help
132 This driver adds support for ACPI fan devices, allowing user-mode
133 applications to perform basic fan control (on, off, status).
134
Len Brownc8f7a622006-07-09 17:22:28 -0400135config ACPI_DOCK
136 tristate "Dock"
Len Brown8d7bff62006-07-09 22:09:57 -0400137 depends on EXPERIMENTAL
Len Brownc8f7a622006-07-09 17:22:28 -0400138 help
139 This driver adds support for ACPI controlled docking stations
140
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141config ACPI_PROCESSOR
142 tristate "Processor"
Len Brown07fefe42005-08-25 12:22:04 -0400143 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700144 help
145 This driver installs ACPI as the idle handler for Linux, and uses
146 ACPI C2 and C3 processor states to save power, on systems that
Len Brown07fefe42005-08-25 12:22:04 -0400147 support it. It is required by several flavors of cpufreq
148 Performance-state drivers.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700149
150config ACPI_HOTPLUG_CPU
Adrian Bunkcbfc1ba2005-07-30 04:18:00 -0400151 bool
152 depends on ACPI_PROCESSOR && HOTPLUG_CPU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700153 select ACPI_CONTAINER
Adrian Bunkcbfc1ba2005-07-30 04:18:00 -0400154 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700155
156config ACPI_THERMAL
157 tristate "Thermal Zone"
158 depends on ACPI_PROCESSOR
Len Brown07fefe42005-08-25 12:22:04 -0400159 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700160 help
161 This driver adds support for ACPI thermal zones. Most mobile and
162 some desktop systems support ACPI thermal zones. It is HIGHLY
163 recommended that this option be enabled, as your processor(s)
164 may be damaged without it.
165
166config ACPI_NUMA
167 bool "NUMA support"
168 depends on NUMA
Yasunori Goto762834e2006-06-23 02:03:19 -0700169 depends on (X86 || IA64)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700170 default y if IA64_GENERIC || IA64_SGI_SN2
171
172config ACPI_ASUS
173 tristate "ASUS/Medion Laptop Extras"
174 depends on X86
Holger Macht2039a6e2006-10-20 14:30:29 -0700175 select BACKLIGHT_CLASS_DEVICE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700176 ---help---
177 This driver provides support for extra features of ACPI-compatible
178 ASUS laptops. As some of Medion laptops are made by ASUS, it may also
179 support some Medion laptops (such as 9675 for example). It makes all
180 the extra buttons generate standard ACPI events that go through
181 /proc/acpi/events, and (on some models) adds support for changing the
182 display brightness and output, switching the LCD backlight on and off,
183 and most importantly, allows you to blink those fancy LEDs intended
184 for reporting mail and wireless status.
185
186 Note: display switching code is currently considered EXPERIMENTAL,
187 toying with these values may even lock your machine.
188
189 All settings are changed via /proc/acpi/asus directory entries. Owner
190 and group for these entries can be set with asus_uid and asus_gid
191 parameters.
192
193 More information and a userspace daemon for handling the extra buttons
194 at <http://sourceforge.net/projects/acpi4asus/>.
195
196 If you have an ACPI-compatible ASUS laptop, say Y or M here. This
197 driver is still under development, so if your laptop is unsupported or
198 something works not quite as expected, please use the mailing list
199 available on the above page (acpi4asus-user@lists.sourceforge.net)
200
201config ACPI_IBM
202 tristate "IBM ThinkPad Laptop Extras"
203 depends on X86
Holger Macht8acb0252006-10-20 14:30:28 -0700204 select BACKLIGHT_CLASS_DEVICE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700205 ---help---
206 This is a Linux ACPI driver for the IBM ThinkPad laptops. It adds
207 support for Fn-Fx key combinations, Bluetooth control, video
208 output switching, ThinkLight control, UltraBay eject and more.
209 For more information about this driver see <file:Documentation/ibm-acpi.txt>
210 and <http://ibm-acpi.sf.net/> .
211
212 If you have an IBM ThinkPad laptop, say Y or M here.
213
Kristen Accardi63e5f242006-02-23 17:56:06 -0800214config ACPI_IBM_DOCK
215 bool "Legacy Docking Station Support"
216 depends on ACPI_IBM
Len Brown8d7bff62006-07-09 22:09:57 -0400217 depends on ACPI_DOCK=n
Kristen Accardi63e5f242006-02-23 17:56:06 -0800218 default n
219 ---help---
220 Allows the ibm_acpi driver to handle docking station events.
221 This support is obsoleted by CONFIG_HOTPLUG_PCI_ACPI. It will
222 allow locking and removing the laptop from the docking station,
223 but will not properly connect PCI devices.
224
225 If you are not sure, say N here.
226
Linus Torvalds1da177e2005-04-16 15:20:36 -0700227config ACPI_TOSHIBA
228 tristate "Toshiba Laptop Extras"
229 depends on X86
Linus Torvalds1da177e2005-04-16 15:20:36 -0700230 ---help---
231 This driver adds support for access to certain system settings
232 on "legacy free" Toshiba laptops. These laptops can be recognized by
233 their lack of a BIOS setup menu and APM support.
234
235 On these machines, all system configuration is handled through the
236 ACPI. This driver is required for access to controls not covered
237 by the general ACPI drivers, such as LCD brightness, video output,
238 etc.
239
240 This driver differs from the non-ACPI Toshiba laptop driver (located
241 under "Processor type and features") in several aspects.
242 Configuration is accessed by reading and writing text files in the
243 /proc tree instead of by program interface to /dev. Furthermore, no
244 power management functions are exposed, as those are handled by the
245 general ACPI drivers.
246
247 More information about this driver is available at
248 <http://memebeam.org/toys/ToshibaAcpiDriver>.
249
250 If you have a legacy free Toshiba laptop (such as the Libretto L1
251 series), say Y.
252
253config ACPI_CUSTOM_DSDT
254 bool "Include Custom DSDT"
255 depends on !STANDALONE
256 default n
257 help
Matt LaPlantec73a6682006-10-03 22:24:43 +0200258 This option is to load a custom ACPI DSDT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700259 If you don't know what that is, say N.
260
261config ACPI_CUSTOM_DSDT_FILE
262 string "Custom DSDT Table file to include"
263 depends on ACPI_CUSTOM_DSDT
264 default ""
265 help
Uwe Zeisbergerc30fe7f2006-03-24 18:23:14 +0100266 Enter the full path name to the file which includes the AmlCode
267 declaration.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700268
269config ACPI_BLACKLIST_YEAR
Andi Kleen2eb1bdb2006-02-26 04:18:43 +0100270 int "Disable ACPI for systems before Jan 1st this year" if X86_32
Linus Torvalds1da177e2005-04-16 15:20:36 -0700271 default 0
272 help
273 enter a 4-digit year, eg. 2001 to disable ACPI by default
274 on platforms with DMI BIOS date before January 1st that year.
275 "acpi=force" can be used to override this mechanism.
276
277 Enter 0 to disable this mechanism and allow ACPI to
278 run by default no matter what the year. (default)
279
280config ACPI_DEBUG
281 bool "Debug Statements"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700282 default n
283 help
284 The ACPI driver can optionally report errors with a great deal
285 of verbosity. Saying Y enables these statements. This will increase
286 your kernel size by around 50K.
287
Linus Torvalds1da177e2005-04-16 15:20:36 -0700288config ACPI_EC
289 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700290 default y
291 help
292 This driver is required on some systems for the proper operation of
293 the battery and thermal drivers. If you are compiling for a
294 mobile system, say Y.
295
296config ACPI_POWER
297 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700298 default y
299
Linus Torvalds1da177e2005-04-16 15:20:36 -0700300config ACPI_SYSTEM
301 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700302 default y
303 help
304 This driver will enable your system to shut down using ACPI, and
305 dump your ACPI DSDT table using /proc/acpi/dsdt.
306
Linus Torvalds1da177e2005-04-16 15:20:36 -0700307config X86_PM_TIMER
Andi Kleene78256b2006-02-26 04:18:37 +0100308 bool "Power Management Timer Support" if EMBEDDED
Linus Torvalds1da177e2005-04-16 15:20:36 -0700309 depends on X86
Len Brown07fefe42005-08-25 12:22:04 -0400310 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700311 help
312 The Power Management Timer is available on all ACPI-capable,
313 in most cases even if ACPI is unusable or blacklisted.
314
Matt LaPlantec73a6682006-10-03 22:24:43 +0200315 This timing source is not affected by power management features
Linus Torvalds1da177e2005-04-16 15:20:36 -0700316 like aggressive processor idling, throttling, frequency and/or
317 voltage scaling, unlike the commonly used Time Stamp Counter
318 (TSC) timing source.
319
Andi Kleene78256b2006-02-26 04:18:37 +0100320 You should nearly always say Y here because many modern
321 systems require this timer.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700322
323config ACPI_CONTAINER
324 tristate "ACPI0004,PNP0A05 and PNP0A06 Container Driver (EXPERIMENTAL)"
325 depends on EXPERIMENTAL
326 default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO)
327 ---help---
Keiichiro Tokunaga45b1b192005-03-02 00:00:00 -0500328 This allows _physical_ insertion and removal of CPUs and memory.
329 This can be useful, for example, on NUMA machines that support
330 ACPI based physical hotplug of nodes, or non-NUMA machines that
331 support physical cpu/memory hot-plug.
332
333 If one selects "m", this driver can be loaded with
334 "modprobe acpi_container".
Linus Torvalds1da177e2005-04-16 15:20:36 -0700335
336config ACPI_HOTPLUG_MEMORY
337 tristate "Memory Hotplug"
338 depends on ACPI
Yasunori Gotobc02af92006-06-27 02:53:30 -0700339 depends on MEMORY_HOTPLUG
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340 default n
341 help
342 This driver adds supports for ACPI Memory Hotplug. This driver
343 provides support for fielding notifications on ACPI memory
344 devices (PNP0C80) which represent memory ranges that may be
345 onlined or offlined during runtime.
346
347 Enabling this driver assumes that your platform hardware
348 and firmware have support for hot-plugging physical memory. If
349 your system does not support physically adding or ripping out
Matt LaPlantec73a6682006-10-03 22:24:43 +0200350 memory DIMMs at some platform defined granularity (individually
Linus Torvalds1da177e2005-04-16 15:20:36 -0700351 or as a bank) at runtime, then you need not enable this driver.
352
353 If one selects "m," this driver can be loaded using the following
354 command:
355 $>modprobe acpi_memhotplug
Rich Townsend3f86b832006-07-01 11:36:54 -0400356
357config ACPI_SBS
358 tristate "Smart Battery System (EXPERIMENTAL)"
359 depends on X86 && I2C
360 depends on EXPERIMENTAL
Rich Townsend3f86b832006-07-01 11:36:54 -0400361 help
362 This driver adds support for the Smart Battery System.
363 Depends on I2C (Device Drivers ---> I2C support)
364 A "Smart Battery" is quite old and quite rare compared
365 to today's ACPI "Control Method" battery.
366
Linus Torvalds1da177e2005-04-16 15:20:36 -0700367endif # ACPI
368
369endmenu