Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | # |
2 | # ACPI Configuration | |
3 | # | |
4 | ||
3f2c48c9 | 5 | menuconfig ACPI |
355ee5eb | 6 | bool "ACPI (Advanced Configuration and Power Interface) Support" |
db503422 | 7 | depends on !X86_NUMAQ |
1da177e4 LT |
8 | depends on !X86_VISWS |
9 | depends on !IA64_HP_SIM | |
10 | depends on IA64 || X86 | |
1300124f | 11 | depends on PCI |
6796a120 | 12 | depends on PM |
243b66e7 | 13 | select PNP |
1da177e4 LT |
14 | 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 | ||
3e11c3ce LB |
43 | if ACPI |
44 | ||
673d5b43 LB |
45 | config ACPI_SLEEP |
46 | bool | |
47 | depends on PM_SLEEP | |
48 | default y | |
49 | ||
b981c591 | 50 | config ACPI_PROCFS |
fb804714 LB |
51 | bool "Deprecated /proc/acpi files" |
52 | depends on PROC_FS | |
b981c591 | 53 | ---help--- |
fb804714 | 54 | For backwards compatibility, this option allows |
405bbe9f | 55 | deprecated /proc/acpi/ files to exist, even when |
fb804714 LB |
56 | they have been replaced by functions in /sys. |
57 | The deprecated files (and their replacements) include: | |
58 | ||
43532c8a | 59 | /proc/acpi/sleep (/sys/power/state) |
fb804714 LB |
60 | /proc/acpi/info (/sys/modules/acpi/parameters/acpica_version) |
61 | /proc/acpi/dsdt (/sys/firmware/acpi/tables/DSDT) | |
62 | /proc/acpi/fadt (/sys/firmware/acpi/tables/FACP) | |
63 | /proc/acpi/debug_layer (/sys/module/acpi/parameters/debug_layer) | |
64 | /proc/acpi/debug_level (/sys/module/acpi/parameters/debug_level) | |
65 | ||
66 | This option has no effect on /proc/acpi/ files | |
67 | and functions which do not yet exist in /sys. | |
68 | ||
69 | Say N to delete /proc/acpi/ files that have moved to /sys/ | |
fdcedbba AS |
70 | config ACPI_PROCFS_POWER |
71 | bool "Deprecated power /proc/acpi folders" | |
72 | depends on PROC_FS | |
73 | default y | |
74 | ---help--- | |
75 | For backwards compatibility, this option allows | |
76 | deprecated power /proc/acpi/ folders to exist, even when | |
77 | they have been replaced by functions in /sys. | |
78 | The deprecated folders (and their replacements) include: | |
79 | /proc/acpi/battery/* (/sys/class/power_supply/*) | |
80 | /proc/acpi/ac_adapter/* (sys/class/power_supply/*) | |
81 | This option has no effect on /proc/acpi/ folders | |
82 | and functions, which do not yet exist in /sys | |
b981c591 | 83 | |
fdcedbba | 84 | Say N to delete power /proc/acpi/ folders that have moved to /sys/ |
97749cd9 AS |
85 | config ACPI_SYSFS_POWER |
86 | bool "Future power /sys interface" | |
87 | select POWER_SUPPLY | |
88 | default y | |
89 | ---help--- | |
90 | Say N to disable power /sys interface | |
14e04fb3 LB |
91 | config ACPI_PROC_EVENT |
92 | bool "Deprecated /proc/acpi/event support" | |
93 | depends on PROC_FS | |
721ebe00 | 94 | default y |
14e04fb3 LB |
95 | ---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 | ||
721ebe00 | 102 | This build option enables the old code for legacy |
14e04fb3 LB |
103 | user-space implementation. After some time, this will |
104 | be moved under CONFIG_ACPI_PROCFS, and then deleted. | |
105 | ||
721ebe00 HD |
106 | 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 | ||
1da177e4 LT |
109 | config ACPI_AC |
110 | tristate "AC Adapter" | |
5527c8be | 111 | depends on X86 |
07fefe4c | 112 | default y |
1da177e4 LT |
113 | help |
114 | This driver adds support for the AC Adapter object, which indicates | |
07fefe4c LB |
115 | whether a system is on AC, or not. If you have a system that can |
116 | switch between A/C and battery, say Y. | |
1da177e4 LT |
117 | |
118 | config ACPI_BATTERY | |
119 | tristate "Battery" | |
5527c8be | 120 | depends on X86 |
07fefe4c | 121 | default y |
1da177e4 LT |
122 | 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 | ||
127 | config ACPI_BUTTON | |
128 | tristate "Button" | |
c0968f0e | 129 | depends on INPUT |
07fefe4c | 130 | default y |
1da177e4 | 131 | help |
07fefe4c LB |
132 | 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. | |
1da177e4 LT |
136 | |
137 | config ACPI_VIDEO | |
138 | tristate "Video" | |
23b0f015 | 139 | depends on X86 && BACKLIGHT_CLASS_DEVICE && VIDEO_OUTPUT_CONTROL |
03e2bf26 | 140 | depends on INPUT |
1da177e4 LT |
141 | help |
142 | This driver implement the ACPI Extensions For Display Adapters | |
143 | for integrated graphics devices on motherboard, as specified in | |
144 | ACPI 2.0 Specification, Appendix B, allowing to perform some basic | |
145 | control like defining the video POST device, retrieving EDID information | |
146 | or to setup a video output, etc. | |
147 | Note that this is an ref. implementation only. It may or may not work | |
148 | for your integrated video device. | |
149 | ||
150 | config ACPI_FAN | |
151 | tristate "Fan" | |
07fefe4c | 152 | default y |
1da177e4 LT |
153 | help |
154 | This driver adds support for ACPI fan devices, allowing user-mode | |
155 | applications to perform basic fan control (on, off, status). | |
156 | ||
c8f7a62c LB |
157 | config ACPI_DOCK |
158 | tristate "Dock" | |
8d7bff6c | 159 | depends on EXPERIMENTAL |
c8f7a62c LB |
160 | help |
161 | This driver adds support for ACPI controlled docking stations | |
162 | ||
01b57e73 | 163 | config ACPI_BAY |
0ed1e38d | 164 | tristate "Removable Drive Bay (EXPERIMENTAL)" |
01b57e73 | 165 | depends on EXPERIMENTAL |
b1a316f6 | 166 | depends on ACPI_DOCK |
01b57e73 KCA |
167 | help |
168 | This driver adds support for ACPI controlled removable drive | |
169 | bays such as the IBM ultrabay or the Dell Module Bay. | |
170 | ||
1da177e4 LT |
171 | config ACPI_PROCESSOR |
172 | tristate "Processor" | |
07fefe4c | 173 | default y |
1da177e4 LT |
174 | help |
175 | This driver installs ACPI as the idle handler for Linux, and uses | |
176 | ACPI C2 and C3 processor states to save power, on systems that | |
07fefe4c LB |
177 | support it. It is required by several flavors of cpufreq |
178 | Performance-state drivers. | |
1da177e4 LT |
179 | |
180 | config ACPI_HOTPLUG_CPU | |
cbfc1bae AB |
181 | bool |
182 | depends on ACPI_PROCESSOR && HOTPLUG_CPU | |
1da177e4 | 183 | select ACPI_CONTAINER |
cbfc1bae | 184 | default y |
1da177e4 LT |
185 | |
186 | config ACPI_THERMAL | |
187 | tristate "Thermal Zone" | |
188 | depends on ACPI_PROCESSOR | |
07fefe4c | 189 | default y |
1da177e4 LT |
190 | help |
191 | This driver adds support for ACPI thermal zones. Most mobile and | |
192 | some desktop systems support ACPI thermal zones. It is HIGHLY | |
193 | recommended that this option be enabled, as your processor(s) | |
194 | may be damaged without it. | |
195 | ||
196 | config ACPI_NUMA | |
197 | bool "NUMA support" | |
198 | depends on NUMA | |
762834e8 | 199 | depends on (X86 || IA64) |
1da177e4 LT |
200 | default y if IA64_GENERIC || IA64_SGI_SN2 |
201 | ||
202 | config ACPI_ASUS | |
203 | tristate "ASUS/Medion Laptop Extras" | |
204 | depends on X86 | |
2039a6eb | 205 | select BACKLIGHT_CLASS_DEVICE |
1da177e4 LT |
206 | ---help--- |
207 | This driver provides support for extra features of ACPI-compatible | |
208 | ASUS laptops. As some of Medion laptops are made by ASUS, it may also | |
209 | support some Medion laptops (such as 9675 for example). It makes all | |
210 | the extra buttons generate standard ACPI events that go through | |
211 | /proc/acpi/events, and (on some models) adds support for changing the | |
212 | display brightness and output, switching the LCD backlight on and off, | |
213 | and most importantly, allows you to blink those fancy LEDs intended | |
214 | for reporting mail and wireless status. | |
215 | ||
216 | Note: display switching code is currently considered EXPERIMENTAL, | |
217 | toying with these values may even lock your machine. | |
85091b71 | 218 | |
1da177e4 LT |
219 | All settings are changed via /proc/acpi/asus directory entries. Owner |
220 | and group for these entries can be set with asus_uid and asus_gid | |
221 | parameters. | |
85091b71 | 222 | |
1da177e4 LT |
223 | More information and a userspace daemon for handling the extra buttons |
224 | at <http://sourceforge.net/projects/acpi4asus/>. | |
85091b71 | 225 | |
1da177e4 LT |
226 | If you have an ACPI-compatible ASUS laptop, say Y or M here. This |
227 | driver is still under development, so if your laptop is unsupported or | |
228 | something works not quite as expected, please use the mailing list | |
85091b71 CC |
229 | available on the above page (acpi4asus-user@lists.sourceforge.net). |
230 | ||
231 | NOTE: This driver is deprecated and will probably be removed soon, | |
232 | use asus-laptop instead. | |
233 | ||
1da177e4 LT |
234 | config ACPI_TOSHIBA |
235 | tristate "Toshiba Laptop Extras" | |
236 | depends on X86 | |
c9263557 | 237 | select BACKLIGHT_CLASS_DEVICE |
1da177e4 LT |
238 | ---help--- |
239 | This driver adds support for access to certain system settings | |
240 | on "legacy free" Toshiba laptops. These laptops can be recognized by | |
241 | their lack of a BIOS setup menu and APM support. | |
242 | ||
243 | On these machines, all system configuration is handled through the | |
244 | ACPI. This driver is required for access to controls not covered | |
245 | by the general ACPI drivers, such as LCD brightness, video output, | |
246 | etc. | |
247 | ||
248 | This driver differs from the non-ACPI Toshiba laptop driver (located | |
249 | under "Processor type and features") in several aspects. | |
250 | Configuration is accessed by reading and writing text files in the | |
251 | /proc tree instead of by program interface to /dev. Furthermore, no | |
252 | power management functions are exposed, as those are handled by the | |
253 | general ACPI drivers. | |
254 | ||
255 | More information about this driver is available at | |
256 | <http://memebeam.org/toys/ToshibaAcpiDriver>. | |
257 | ||
258 | If you have a legacy free Toshiba laptop (such as the Libretto L1 | |
259 | series), say Y. | |
260 | ||
261 | config ACPI_CUSTOM_DSDT | |
262 | bool "Include Custom DSDT" | |
263 | depends on !STANDALONE | |
264 | default n | |
265 | help | |
c73a668c | 266 | This option is to load a custom ACPI DSDT |
1da177e4 LT |
267 | If you don't know what that is, say N. |
268 | ||
269 | config ACPI_CUSTOM_DSDT_FILE | |
270 | string "Custom DSDT Table file to include" | |
271 | depends on ACPI_CUSTOM_DSDT | |
272 | default "" | |
273 | help | |
c30fe7f7 UZ |
274 | Enter the full path name to the file which includes the AmlCode |
275 | declaration. | |
1da177e4 | 276 | |
71fc47a9 MG |
277 | config ACPI_CUSTOM_DSDT_INITRD |
278 | bool "Read Custom DSDT from initramfs" | |
279 | depends on BLK_DEV_INITRD | |
280 | default n | |
281 | help | |
282 | The DSDT (Differentiated System Description Table) often needs to be | |
283 | overridden because of broken BIOS implementations. If this feature is | |
284 | activated you will be able to provide a customized DSDT by adding it | |
285 | to your initramfs. If your mkinitrd tool does not support this feature | |
286 | a script is provided in the documentation. For more details see | |
287 | <file:Documentation/dsdt-initrd.txt> or <http://gaugusch.at/kernel.shtml>. | |
288 | If there is no table found, it will fall-back to the custom DSDT | |
289 | in-kernel (if activated) or to the DSDT from the BIOS. | |
290 | ||
291 | Even if you do not need a new one at the moment, you may want to use a | |
292 | better DSDT later. It is safe to say Y here. | |
293 | ||
1da177e4 | 294 | config ACPI_BLACKLIST_YEAR |
2eb1bdba | 295 | int "Disable ACPI for systems before Jan 1st this year" if X86_32 |
1da177e4 LT |
296 | default 0 |
297 | help | |
298 | enter a 4-digit year, eg. 2001 to disable ACPI by default | |
299 | on platforms with DMI BIOS date before January 1st that year. | |
300 | "acpi=force" can be used to override this mechanism. | |
301 | ||
302 | Enter 0 to disable this mechanism and allow ACPI to | |
303 | run by default no matter what the year. (default) | |
304 | ||
305 | config ACPI_DEBUG | |
306 | bool "Debug Statements" | |
1da177e4 LT |
307 | default n |
308 | help | |
309 | The ACPI driver can optionally report errors with a great deal | |
310 | of verbosity. Saying Y enables these statements. This will increase | |
311 | your kernel size by around 50K. | |
312 | ||
798d9103 TR |
313 | config ACPI_DEBUG_FUNC_TRACE |
314 | bool "Additionally enable ACPI function tracing" | |
315 | default n | |
316 | depends on ACPI_DEBUG | |
317 | help | |
318 | ACPI Debug Statements slow down ACPI processing. Function trace | |
319 | is about half of the penalty and is rarely useful. | |
320 | ||
1da177e4 LT |
321 | config ACPI_EC |
322 | bool | |
1da177e4 LT |
323 | default y |
324 | help | |
325 | This driver is required on some systems for the proper operation of | |
326 | the battery and thermal drivers. If you are compiling for a | |
327 | mobile system, say Y. | |
328 | ||
329 | config ACPI_POWER | |
330 | bool | |
1da177e4 LT |
331 | default y |
332 | ||
1da177e4 LT |
333 | config ACPI_SYSTEM |
334 | bool | |
1da177e4 LT |
335 | default y |
336 | help | |
337 | This driver will enable your system to shut down using ACPI, and | |
338 | dump your ACPI DSDT table using /proc/acpi/dsdt. | |
339 | ||
1da177e4 | 340 | config X86_PM_TIMER |
e78256b8 | 341 | bool "Power Management Timer Support" if EMBEDDED |
1da177e4 | 342 | depends on X86 |
07fefe4c | 343 | default y |
1da177e4 LT |
344 | help |
345 | The Power Management Timer is available on all ACPI-capable, | |
346 | in most cases even if ACPI is unusable or blacklisted. | |
347 | ||
c73a668c | 348 | This timing source is not affected by power management features |
1da177e4 LT |
349 | like aggressive processor idling, throttling, frequency and/or |
350 | voltage scaling, unlike the commonly used Time Stamp Counter | |
351 | (TSC) timing source. | |
352 | ||
e78256b8 AK |
353 | You should nearly always say Y here because many modern |
354 | systems require this timer. | |
1da177e4 LT |
355 | |
356 | config ACPI_CONTAINER | |
357 | tristate "ACPI0004,PNP0A05 and PNP0A06 Container Driver (EXPERIMENTAL)" | |
358 | depends on EXPERIMENTAL | |
359 | default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO) | |
360 | ---help--- | |
45b1b196 KT |
361 | This allows _physical_ insertion and removal of CPUs and memory. |
362 | This can be useful, for example, on NUMA machines that support | |
363 | ACPI based physical hotplug of nodes, or non-NUMA machines that | |
364 | support physical cpu/memory hot-plug. | |
365 | ||
366 | If one selects "m", this driver can be loaded with | |
367 | "modprobe acpi_container". | |
1da177e4 LT |
368 | |
369 | config ACPI_HOTPLUG_MEMORY | |
370 | tristate "Memory Hotplug" | |
bc02af93 | 371 | depends on MEMORY_HOTPLUG |
1da177e4 LT |
372 | default n |
373 | help | |
374 | This driver adds supports for ACPI Memory Hotplug. This driver | |
375 | provides support for fielding notifications on ACPI memory | |
376 | devices (PNP0C80) which represent memory ranges that may be | |
377 | onlined or offlined during runtime. | |
378 | ||
379 | Enabling this driver assumes that your platform hardware | |
380 | and firmware have support for hot-plugging physical memory. If | |
381 | your system does not support physically adding or ripping out | |
c73a668c | 382 | memory DIMMs at some platform defined granularity (individually |
1da177e4 LT |
383 | or as a bank) at runtime, then you need not enable this driver. |
384 | ||
385 | If one selects "m," this driver can be loaded using the following | |
386 | command: | |
387 | $>modprobe acpi_memhotplug | |
3f86b832 RT |
388 | |
389 | config ACPI_SBS | |
94f6c086 | 390 | tristate "Smart Battery System" |
b4150fc4 | 391 | depends on X86 |
3f86b832 | 392 | help |
94f6c086 AS |
393 | This driver adds support for the Smart Battery System, another |
394 | type of access to battery information, found on some laptops. | |
3f86b832 | 395 | |
1da177e4 | 396 | endif # ACPI |