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Commit | Line | Data |
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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56 | they have been replaced by functions in /sys.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 | 70 | config ACPI_PROCFS_POWER |
9e527971 | 71 | bool "Deprecated power /proc/acpi directories" |
fdcedbba AS |
72 | depends on PROC_FS |
73 | default y | |
74 | ---help--- | |
75 | For backwards compatibility, this option allows | |
9e527971 | 76 | deprecated power /proc/acpi/ directories to exist, even when |
fdcedbba | 77 | they have been replaced by functions in /sys. |
9e527971 | 78 | The deprecated directories (and their replacements) include: |
fdcedbba AS |
79 | /proc/acpi/battery/* (/sys/class/power_supply/*) |
80 | /proc/acpi/ac_adapter/* (sys/class/power_supply/*) | |
9e527971 | 81 | This option has no effect on /proc/acpi/ directories |
fdcedbba | 82 | and functions, which do not yet exist in /sys |
b981c591 | 83 | |
9e527971 AC |
84 | Say N to delete power /proc/acpi/ directories that have moved to /sys/ |
85 | ||
97749cd9 AS |
86 | config ACPI_SYSFS_POWER |
87 | bool "Future power /sys interface" | |
88 | select POWER_SUPPLY | |
89 | default y | |
90 | ---help--- | |
91 | Say N to disable power /sys interface | |
9e527971 | 92 | |
14e04fb3 LB |
93 | config ACPI_PROC_EVENT |
94 | bool "Deprecated /proc/acpi/event support" | |
95 | depends on PROC_FS | |
721ebe00 | 96 | default y |
14e04fb3 LB |
97 | ---help--- |
98 | A user-space daemon, acpi, typically read /proc/acpi/event | |
99 | and handled all ACPI sub-system generated events. | |
100 | ||
101 | These events are now delivered to user-space via | |
102 | either the input layer, or as netlink events. | |
103 | ||
721ebe00 | 104 | This build option enables the old code for legacy |
14e04fb3 LB |
105 | user-space implementation. After some time, this will |
106 | be moved under CONFIG_ACPI_PROCFS, and then deleted. | |
107 | ||
721ebe00 HD |
108 | Say Y here to retain the old behaviour. Say N if your |
109 | user-space is newer than kernel 2.6.23 (September 2007). | |
110 | ||
1da177e4 LT |
111 | config ACPI_AC |
112 | tristate "AC Adapter" | |
5527c8be | 113 | depends on X86 |
07fefe4c | 114 | default y |
1da177e4 LT |
115 | help |
116 | This driver adds support for the AC Adapter object, which indicates | |
07fefe4c LB |
117 | whether a system is on AC, or not. If you have a system that can |
118 | switch between A/C and battery, say Y. | |
1da177e4 LT |
119 | |
120 | config ACPI_BATTERY | |
121 | tristate "Battery" | |
5527c8be | 122 | depends on X86 |
07fefe4c | 123 | default y |
1da177e4 LT |
124 | help |
125 | This driver adds support for battery information through | |
126 | /proc/acpi/battery. If you have a mobile system with a battery, | |
127 | say Y. | |
128 | ||
129 | config ACPI_BUTTON | |
130 | tristate "Button" | |
c0968f0e | 131 | depends on INPUT |
07fefe4c | 132 | default y |
1da177e4 | 133 | help |
07fefe4c LB |
134 | This driver handles events on the power, sleep and lid buttons. |
135 | A daemon reads /proc/acpi/event and perform user-defined actions | |
136 | such as shutting down the system. This is necessary for | |
137 | software controlled poweroff. | |
1da177e4 LT |
138 | |
139 | config ACPI_VIDEO | |
140 | tristate "Video" | |
23b0f015 | 141 | depends on X86 && BACKLIGHT_CLASS_DEVICE && VIDEO_OUTPUT_CONTROL |
03e2bf26 | 142 | depends on INPUT |
63c4ec90 | 143 | select THERMAL |
1da177e4 LT |
144 | help |
145 | This driver implement the ACPI Extensions For Display Adapters | |
146 | for integrated graphics devices on motherboard, as specified in | |
147 | ACPI 2.0 Specification, Appendix B, allowing to perform some basic | |
148 | control like defining the video POST device, retrieving EDID information | |
149 | or to setup a video output, etc. | |
150 | Note that this is an ref. implementation only. It may or may not work | |
151 | for your integrated video device. | |
152 | ||
153 | config ACPI_FAN | |
154 | tristate "Fan" | |
63c4ec90 | 155 | select THERMAL |
07fefe4c | 156 | default y |
1da177e4 LT |
157 | help |
158 | This driver adds support for ACPI fan devices, allowing user-mode | |
159 | applications to perform basic fan control (on, off, status). | |
160 | ||
c8f7a62c LB |
161 | config ACPI_DOCK |
162 | tristate "Dock" | |
8d7bff6c | 163 | depends on EXPERIMENTAL |
c8f7a62c LB |
164 | help |
165 | This driver adds support for ACPI controlled docking stations | |
166 | ||
01b57e73 | 167 | config ACPI_BAY |
0ed1e38d | 168 | tristate "Removable Drive Bay (EXPERIMENTAL)" |
01b57e73 | 169 | depends on EXPERIMENTAL |
b1a316f6 | 170 | depends on ACPI_DOCK |
01b57e73 KCA |
171 | help |
172 | This driver adds support for ACPI controlled removable drive | |
173 | bays such as the IBM ultrabay or the Dell Module Bay. | |
174 | ||
1da177e4 LT |
175 | config ACPI_PROCESSOR |
176 | tristate "Processor" | |
63c4ec90 | 177 | select THERMAL |
07fefe4c | 178 | default y |
1da177e4 LT |
179 | help |
180 | This driver installs ACPI as the idle handler for Linux, and uses | |
181 | ACPI C2 and C3 processor states to save power, on systems that | |
07fefe4c LB |
182 | support it. It is required by several flavors of cpufreq |
183 | Performance-state drivers. | |
1da177e4 LT |
184 | |
185 | config ACPI_HOTPLUG_CPU | |
cbfc1bae AB |
186 | bool |
187 | depends on ACPI_PROCESSOR && HOTPLUG_CPU | |
1da177e4 | 188 | select ACPI_CONTAINER |
cbfc1bae | 189 | default y |
1da177e4 LT |
190 | |
191 | config ACPI_THERMAL | |
192 | tristate "Thermal Zone" | |
193 | depends on ACPI_PROCESSOR | |
3f655ef8 | 194 | select THERMAL |
07fefe4c | 195 | default y |
1da177e4 LT |
196 | help |
197 | This driver adds support for ACPI thermal zones. Most mobile and | |
198 | some desktop systems support ACPI thermal zones. It is HIGHLY | |
199 | recommended that this option be enabled, as your processor(s) | |
200 | may be damaged without it. | |
201 | ||
202 | config ACPI_NUMA | |
203 | bool "NUMA support" | |
204 | depends on NUMA | |
762834e8 | 205 | depends on (X86 || IA64) |
1da177e4 LT |
206 | default y if IA64_GENERIC || IA64_SGI_SN2 |
207 | ||
bff431e4 CC |
208 | config ACPI_WMI |
209 | tristate "WMI (EXPERIMENTAL)" | |
9c2f7de8 | 210 | depends on X86 |
bff431e4 CC |
211 | depends on EXPERIMENTAL |
212 | help | |
20b45147 CC |
213 | This driver adds support for the ACPI-WMI (Windows Management |
214 | Instrumentation) mapper device (PNP0C14) found on some systems. | |
bff431e4 | 215 | |
20b45147 CC |
216 | ACPI-WMI is a proprietary extension to ACPI to expose parts of the |
217 | ACPI firmware to userspace - this is done through various vendor | |
218 | defined methods and data blocks in a PNP0C14 device, which are then | |
219 | made available for userspace to call. | |
220 | ||
221 | The implementation of this in Linux currently only exposes this to | |
222 | other kernel space drivers. | |
223 | ||
224 | This driver is a required dependency to build the firmware specific | |
225 | drivers needed on many machines, including Acer and HP laptops. | |
226 | ||
227 | It is safe to enable this driver even if your DSDT doesn't define | |
228 | any ACPI-WMI devices. | |
bff431e4 | 229 | |
1da177e4 LT |
230 | config ACPI_ASUS |
231 | tristate "ASUS/Medion Laptop Extras" | |
232 | depends on X86 | |
2039a6eb | 233 | select BACKLIGHT_CLASS_DEVICE |
1da177e4 LT |
234 | ---help--- |
235 | This driver provides support for extra features of ACPI-compatible | |
236 | ASUS laptops. As some of Medion laptops are made by ASUS, it may also | |
237 | support some Medion laptops (such as 9675 for example). It makes all | |
238 | the extra buttons generate standard ACPI events that go through | |
239 | /proc/acpi/events, and (on some models) adds support for changing the | |
240 | display brightness and output, switching the LCD backlight on and off, | |
241 | and most importantly, allows you to blink those fancy LEDs intended | |
242 | for reporting mail and wireless status. | |
243 | ||
244 | Note: display switching code is currently considered EXPERIMENTAL, | |
245 | toying with these values may even lock your machine. | |
85091b71 | 246 | |
1da177e4 LT |
247 | All settings are changed via /proc/acpi/asus directory entries. Owner |
248 | and group for these entries can be set with asus_uid and asus_gid | |
249 | parameters. | |
85091b71 | 250 | |
1da177e4 LT |
251 | More information and a userspace daemon for handling the extra buttons |
252 | at <http://sourceforge.net/projects/acpi4asus/>. | |
85091b71 | 253 | |
1da177e4 LT |
254 | If you have an ACPI-compatible ASUS laptop, say Y or M here. This |
255 | driver is still under development, so if your laptop is unsupported or | |
256 | something works not quite as expected, please use the mailing list | |
85091b71 CC |
257 | available on the above page (acpi4asus-user@lists.sourceforge.net). |
258 | ||
259 | NOTE: This driver is deprecated and will probably be removed soon, | |
260 | use asus-laptop instead. | |
261 | ||
1da177e4 LT |
262 | config ACPI_TOSHIBA |
263 | tristate "Toshiba Laptop Extras" | |
264 | depends on X86 | |
c9263557 | 265 | select BACKLIGHT_CLASS_DEVICE |
1da177e4 LT |
266 | ---help--- |
267 | This driver adds support for access to certain system settings | |
268 | on "legacy free" Toshiba laptops. These laptops can be recognized by | |
269 | their lack of a BIOS setup menu and APM support. | |
270 | ||
271 | On these machines, all system configuration is handled through the | |
272 | ACPI. This driver is required for access to controls not covered | |
273 | by the general ACPI drivers, such as LCD brightness, video output, | |
274 | etc. | |
275 | ||
276 | This driver differs from the non-ACPI Toshiba laptop driver (located | |
277 | under "Processor type and features") in several aspects. | |
278 | Configuration is accessed by reading and writing text files in the | |
279 | /proc tree instead of by program interface to /dev. Furthermore, no | |
280 | power management functions are exposed, as those are handled by the | |
281 | general ACPI drivers. | |
282 | ||
283 | More information about this driver is available at | |
284 | <http://memebeam.org/toys/ToshibaAcpiDriver>. | |
285 | ||
286 | If you have a legacy free Toshiba laptop (such as the Libretto L1 | |
287 | series), say Y. | |
288 | ||
7ce9573e RD |
289 | config ACPI_CUSTOM_DSDT_FILE |
290 | string "Custom DSDT Table file to include" | |
291 | default "" | |
1da177e4 | 292 | depends on !STANDALONE |
1da177e4 | 293 | help |
d89e9d6b LB |
294 | This option supports a custom DSDT by linking it into the kernel. |
295 | See Documentation/acpi/dsdt-override.txt | |
296 | ||
c30fe7f7 UZ |
297 | Enter the full path name to the file which includes the AmlCode |
298 | declaration. | |
1da177e4 | 299 | |
7ce9573e RD |
300 | If unsure, don't enter a file name. |
301 | ||
302 | config ACPI_CUSTOM_DSDT | |
303 | bool | |
304 | default ACPI_CUSTOM_DSDT_FILE != "" | |
305 | ||
1da177e4 | 306 | config ACPI_BLACKLIST_YEAR |
2eb1bdba | 307 | int "Disable ACPI for systems before Jan 1st this year" if X86_32 |
1da177e4 LT |
308 | default 0 |
309 | help | |
310 | enter a 4-digit year, eg. 2001 to disable ACPI by default | |
311 | on platforms with DMI BIOS date before January 1st that year. | |
312 | "acpi=force" can be used to override this mechanism. | |
313 | ||
314 | Enter 0 to disable this mechanism and allow ACPI to | |
315 | run by default no matter what the year. (default) | |
316 | ||
317 | config ACPI_DEBUG | |
318 | bool "Debug Statements" | |
1da177e4 LT |
319 | default n |
320 | help | |
321 | The ACPI driver can optionally report errors with a great deal | |
322 | of verbosity. Saying Y enables these statements. This will increase | |
323 | your kernel size by around 50K. | |
324 | ||
798d9103 TR |
325 | config ACPI_DEBUG_FUNC_TRACE |
326 | bool "Additionally enable ACPI function tracing" | |
327 | default n | |
328 | depends on ACPI_DEBUG | |
329 | help | |
330 | ACPI Debug Statements slow down ACPI processing. Function trace | |
331 | is about half of the penalty and is rarely useful. | |
332 | ||
1da177e4 LT |
333 | config ACPI_EC |
334 | bool | |
1da177e4 LT |
335 | default y |
336 | help | |
337 | This driver is required on some systems for the proper operation of | |
338 | the battery and thermal drivers. If you are compiling for a | |
339 | mobile system, say Y. | |
340 | ||
8344b568 AC |
341 | config ACPI_PCI_SLOT |
342 | tristate "PCI slot detection driver" | |
343 | default n | |
344 | help | |
345 | This driver will attempt to discover all PCI slots in your system, | |
346 | and creates entries in /sys/bus/pci/slots/. This feature can | |
347 | help you correlate PCI bus addresses with the physical geography | |
348 | of your slots. If you are unsure, say N. | |
349 | ||
1da177e4 LT |
350 | config ACPI_POWER |
351 | bool | |
1da177e4 LT |
352 | default y |
353 | ||
1da177e4 LT |
354 | config ACPI_SYSTEM |
355 | bool | |
1da177e4 LT |
356 | default y |
357 | help | |
358 | This driver will enable your system to shut down using ACPI, and | |
359 | dump your ACPI DSDT table using /proc/acpi/dsdt. | |
360 | ||
1da177e4 | 361 | config X86_PM_TIMER |
e78256b8 | 362 | bool "Power Management Timer Support" if EMBEDDED |
1da177e4 | 363 | depends on X86 |
07fefe4c | 364 | default y |
1da177e4 LT |
365 | help |
366 | The Power Management Timer is available on all ACPI-capable, | |
367 | in most cases even if ACPI is unusable or blacklisted. | |
368 | ||
c73a668c | 369 | This timing source is not affected by power management features |
1da177e4 LT |
370 | like aggressive processor idling, throttling, frequency and/or |
371 | voltage scaling, unlike the commonly used Time Stamp Counter | |
372 | (TSC) timing source. | |
373 | ||
e78256b8 AK |
374 | You should nearly always say Y here because many modern |
375 | systems require this timer. | |
1da177e4 LT |
376 | |
377 | config ACPI_CONTAINER | |
378 | tristate "ACPI0004,PNP0A05 and PNP0A06 Container Driver (EXPERIMENTAL)" | |
379 | depends on EXPERIMENTAL | |
380 | default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO) | |
381 | ---help--- | |
45b1b196 KT |
382 | This allows _physical_ insertion and removal of CPUs and memory. |
383 | This can be useful, for example, on NUMA machines that support | |
384 | ACPI based physical hotplug of nodes, or non-NUMA machines that | |
385 | support physical cpu/memory hot-plug. | |
386 | ||
387 | If one selects "m", this driver can be loaded with | |
388 | "modprobe acpi_container". | |
1da177e4 LT |
389 | |
390 | config ACPI_HOTPLUG_MEMORY | |
391 | tristate "Memory Hotplug" | |
bc02af93 | 392 | depends on MEMORY_HOTPLUG |
1da177e4 LT |
393 | default n |
394 | help | |
395 | This driver adds supports for ACPI Memory Hotplug. This driver | |
396 | provides support for fielding notifications on ACPI memory | |
397 | devices (PNP0C80) which represent memory ranges that may be | |
398 | onlined or offlined during runtime. | |
399 | ||
400 | Enabling this driver assumes that your platform hardware | |
401 | and firmware have support for hot-plugging physical memory. If | |
402 | your system does not support physically adding or ripping out | |
c73a668c | 403 | memory DIMMs at some platform defined granularity (individually |
1da177e4 LT |
404 | or as a bank) at runtime, then you need not enable this driver. |
405 | ||
406 | If one selects "m," this driver can be loaded using the following | |
407 | command: | |
408 | $>modprobe acpi_memhotplug | |
3f86b832 RT |
409 | |
410 | config ACPI_SBS | |
94f6c086 | 411 | tristate "Smart Battery System" |
b4150fc4 | 412 | depends on X86 |
3f86b832 | 413 | help |
94f6c086 AS |
414 | This driver adds support for the Smart Battery System, another |
415 | type of access to battery information, found on some laptops. | |
3f86b832 | 416 | |
1da177e4 | 417 | endif # ACPI |