[ACPI] lint: irqrouter_suspend() takes a pm_message_t, not a u32
[deliverable/linux.git] / drivers / acpi / Kconfig
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1#
2# ACPI Configuration
3#
4
5menu "ACPI (Advanced Configuration and Power Interface) Support"
be91492c 6 depends on PM
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7 depends on !X86_VISWS
8 depends on !IA64_HP_SIM
9 depends on IA64 || X86
10
11config ACPI
12 bool "ACPI Support"
13 depends on IA64 || X86
14
15 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
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44if ACPI
45
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46config ACPI_BOOT
47 bool
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48 default y
49
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50config ACPI_INTERPRETER
51 bool
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52 default y
53
54if ACPI_INTERPRETER
55
56config ACPI_SLEEP
57 bool "Sleep States (EXPERIMENTAL)"
58 depends on X86
be91492c 59 depends on EXPERIMENTAL
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60 default y
61 ---help---
62 This option adds support for ACPI suspend states.
63
64 With this option, you will be able to put the system "to sleep".
65 Sleep states are low power states for the system and devices. All
66 of the system operating state is saved to either memory or disk
67 (depending on the state), to allow the system to resume operation
68 quickly at your request.
69
70 Although this option sounds really nifty, barely any of the device
71 drivers have been converted to the new driver model and hence few
72 have proper power management support.
73
74 This option is not recommended for anyone except those doing driver
75 power management development.
76
77config ACPI_SLEEP_PROC_FS
78 bool
79 depends on ACPI_SLEEP && PROC_FS
80 default y
81
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82config ACPI_SLEEP_PROC_SLEEP
83 bool "/proc/acpi/sleep (deprecated)"
84 depends on ACPI_SLEEP_PROC_FS
85 default n
86 ---help---
87 Create /proc/acpi/sleep
88 Deprecated by /sys/power/state
89
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90config ACPI_AC
91 tristate "AC Adapter"
92 depends on X86
93 default m
94 help
95 This driver adds support for the AC Adapter object, which indicates
96 whether a system is on AC, or not. Typically, only mobile systems
97 have this object, since desktops are always on AC.
98
99config ACPI_BATTERY
100 tristate "Battery"
101 depends on X86
102 default m
103 help
104 This driver adds support for battery information through
105 /proc/acpi/battery. If you have a mobile system with a battery,
106 say Y.
107
108config ACPI_BUTTON
109 tristate "Button"
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110 default m
111 help
112 This driver registers for events based on buttons, such as the
113 power, sleep, and lid switch. In the future, a daemon will read
114 /proc/acpi/event and perform user-defined actions such as shutting
115 down the system. Until then, you can cat it, and see output when
116 a button is pressed.
117
118config ACPI_VIDEO
119 tristate "Video"
120 depends on EXPERIMENTAL
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121 default m
122 help
123 This driver implement the ACPI Extensions For Display Adapters
124 for integrated graphics devices on motherboard, as specified in
125 ACPI 2.0 Specification, Appendix B, allowing to perform some basic
126 control like defining the video POST device, retrieving EDID information
127 or to setup a video output, etc.
128 Note that this is an ref. implementation only. It may or may not work
129 for your integrated video device.
130
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131config ACPI_HOTKEY
132 tristate "Generic Hotkey"
133 depends on ACPI_INTERPRETER
134 depends on EXPERIMENTAL
135 depends on !IA64_SGI_SN
79cda7d0 136 default n
fb9802fa 137 help
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138 Experimental consolidated hotkey driver.
139 If you are unsure, say N.
fb9802fa 140
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141config ACPI_FAN
142 tristate "Fan"
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143 default m
144 help
145 This driver adds support for ACPI fan devices, allowing user-mode
146 applications to perform basic fan control (on, off, status).
147
148config ACPI_PROCESSOR
149 tristate "Processor"
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150 default m
151 help
152 This driver installs ACPI as the idle handler for Linux, and uses
153 ACPI C2 and C3 processor states to save power, on systems that
154 support it.
155
156config ACPI_HOTPLUG_CPU
157 bool "Processor Hotplug (EXPERIMENTAL)"
158 depends on ACPI_PROCESSOR && HOTPLUG_CPU && EXPERIMENTAL
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159 select ACPI_CONTAINER
160 default n
161 ---help---
162 Select this option if your platform support physical CPU hotplug.
163
164config ACPI_THERMAL
165 tristate "Thermal Zone"
166 depends on ACPI_PROCESSOR
167 default m
168 help
169 This driver adds support for ACPI thermal zones. Most mobile and
170 some desktop systems support ACPI thermal zones. It is HIGHLY
171 recommended that this option be enabled, as your processor(s)
172 may be damaged without it.
173
174config ACPI_NUMA
175 bool "NUMA support"
176 depends on NUMA
177 depends on (IA64 || X86_64)
178 default y if IA64_GENERIC || IA64_SGI_SN2
179
180config ACPI_ASUS
181 tristate "ASUS/Medion Laptop Extras"
182 depends on X86
183 default m
184 ---help---
185 This driver provides support for extra features of ACPI-compatible
186 ASUS laptops. As some of Medion laptops are made by ASUS, it may also
187 support some Medion laptops (such as 9675 for example). It makes all
188 the extra buttons generate standard ACPI events that go through
189 /proc/acpi/events, and (on some models) adds support for changing the
190 display brightness and output, switching the LCD backlight on and off,
191 and most importantly, allows you to blink those fancy LEDs intended
192 for reporting mail and wireless status.
193
194 Note: display switching code is currently considered EXPERIMENTAL,
195 toying with these values may even lock your machine.
196
197 All settings are changed via /proc/acpi/asus directory entries. Owner
198 and group for these entries can be set with asus_uid and asus_gid
199 parameters.
200
201 More information and a userspace daemon for handling the extra buttons
202 at <http://sourceforge.net/projects/acpi4asus/>.
203
204 If you have an ACPI-compatible ASUS laptop, say Y or M here. This
205 driver is still under development, so if your laptop is unsupported or
206 something works not quite as expected, please use the mailing list
207 available on the above page (acpi4asus-user@lists.sourceforge.net)
208
209config ACPI_IBM
210 tristate "IBM ThinkPad Laptop Extras"
211 depends on X86
212 default m
213 ---help---
214 This is a Linux ACPI driver for the IBM ThinkPad laptops. It adds
215 support for Fn-Fx key combinations, Bluetooth control, video
216 output switching, ThinkLight control, UltraBay eject and more.
217 For more information about this driver see <file:Documentation/ibm-acpi.txt>
218 and <http://ibm-acpi.sf.net/> .
219
220 If you have an IBM ThinkPad laptop, say Y or M here.
221
222config ACPI_TOSHIBA
223 tristate "Toshiba Laptop Extras"
224 depends on X86
225 default m
226 ---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
254 Thist option is to load a custom ACPI DSDT
255 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
262 Enter the full path name to the file wich includes the AmlCode declaration.
263
264config ACPI_BLACKLIST_YEAR
265 int "Disable ACPI for systems before Jan 1st this year"
266 depends on ACPI_INTERPRETER
267 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"
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278 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
284config ACPI_BUS
285 bool
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286 default y
287
288config ACPI_EC
289 bool
290 depends on X86
291 default y
292 help
293 This driver is required on some systems for the proper operation of
294 the battery and thermal drivers. If you are compiling for a
295 mobile system, say Y.
296
297config ACPI_POWER
298 bool
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299 default y
300
301config ACPI_PCI
302 bool
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303 default PCI
304
305config ACPI_SYSTEM
306 bool
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307 default y
308 help
309 This driver will enable your system to shut down using ACPI, and
310 dump your ACPI DSDT table using /proc/acpi/dsdt.
311
312endif # ACPI_INTERPRETER
313
314config X86_PM_TIMER
315 bool "Power Management Timer Support"
316 depends on X86
317 depends on ACPI_BOOT && EXPERIMENTAL
318 depends on !X86_64
319 default n
320 help
321 The Power Management Timer is available on all ACPI-capable,
322 in most cases even if ACPI is unusable or blacklisted.
323
324 This timing source is not affected by powermanagement features
325 like aggressive processor idling, throttling, frequency and/or
326 voltage scaling, unlike the commonly used Time Stamp Counter
327 (TSC) timing source.
328
329 So, if you see messages like 'Losing too many ticks!' in the
330 kernel logs, and/or you are using this on a notebook which
331 does not yet have an HPET, you should say "Y" here.
332
333config ACPI_CONTAINER
334 tristate "ACPI0004,PNP0A05 and PNP0A06 Container Driver (EXPERIMENTAL)"
335 depends on EXPERIMENTAL
336 default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO)
337 ---help---
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338 This allows _physical_ insertion and removal of CPUs and memory.
339 This can be useful, for example, on NUMA machines that support
340 ACPI based physical hotplug of nodes, or non-NUMA machines that
341 support physical cpu/memory hot-plug.
342
343 If one selects "m", this driver can be loaded with
344 "modprobe acpi_container".
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345
346config ACPI_HOTPLUG_MEMORY
347 tristate "Memory Hotplug"
348 depends on ACPI
349 depends on MEMORY_HOTPLUG
350 default n
351 help
352 This driver adds supports for ACPI Memory Hotplug. This driver
353 provides support for fielding notifications on ACPI memory
354 devices (PNP0C80) which represent memory ranges that may be
355 onlined or offlined during runtime.
356
357 Enabling this driver assumes that your platform hardware
358 and firmware have support for hot-plugging physical memory. If
359 your system does not support physically adding or ripping out
360 memory DIMMs at some platfrom defined granularity (individually
361 or as a bank) at runtime, then you need not enable this driver.
362
363 If one selects "m," this driver can be loaded using the following
364 command:
365 $>modprobe acpi_memhotplug
366endif # ACPI
367
368endmenu
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