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" |
1da177e4 LT |
7 | depends on !IA64_HP_SIM |
8 | depends on IA64 || X86 | |
1300124f | 9 | depends on PCI |
6796a120 | 10 | depends on PM |
243b66e7 | 11 | select PNP |
1da177e4 LT |
12 | default y |
13 | ---help--- | |
14 | Advanced Configuration and Power Interface (ACPI) support for | |
15 | Linux requires an ACPI compliant platform (hardware/firmware), | |
16 | and assumes the presence of OS-directed configuration and power | |
17 | management (OSPM) software. This option will enlarge your | |
18 | kernel by about 70K. | |
19 | ||
20 | Linux ACPI provides a robust functional replacement for several | |
21 | legacy configuration and power management interfaces, including | |
22 | the Plug-and-Play BIOS specification (PnP BIOS), the | |
23 | MultiProcessor Specification (MPS), and the Advanced Power | |
24 | Management (APM) specification. If both ACPI and APM support | |
25 | are configured, whichever is loaded first shall be used. | |
26 | ||
27 | The ACPI SourceForge project contains the latest source code, | |
28 | documentation, tools, mailing list subscription, and other | |
29 | information. This project is available at: | |
30 | <http://sourceforge.net/projects/acpi> | |
31 | ||
32 | Linux support for ACPI is based on Intel Corporation's ACPI | |
33 | Component Architecture (ACPI CA). For more information see: | |
34 | <http://developer.intel.com/technology/iapc/acpi> | |
35 | ||
36 | ACPI is an open industry specification co-developed by Compaq, | |
37 | Intel, Microsoft, Phoenix, and Toshiba. The specification is | |
38 | available at: | |
39 | <http://www.acpi.info> | |
40 | ||
3e11c3ce LB |
41 | if ACPI |
42 | ||
673d5b43 LB |
43 | config ACPI_SLEEP |
44 | bool | |
5d1e072b | 45 | depends on SUSPEND || HIBERNATION |
673d5b43 LB |
46 | default y |
47 | ||
b981c591 | 48 | config ACPI_PROCFS |
fb804714 LB |
49 | bool "Deprecated /proc/acpi files" |
50 | depends on PROC_FS | |
b981c591 | 51 | ---help--- |
fb804714 | 52 | For backwards compatibility, this option allows |
405bbe9f | 53 | deprecated /proc/acpi/ files to exist, even when |
fb804714 LB |
54 | they have been replaced by functions in /sys. |
55 | The deprecated files (and their replacements) include: | |
56 | ||
43532c8a | 57 | /proc/acpi/sleep (/sys/power/state) |
fb804714 LB |
58 | /proc/acpi/info (/sys/modules/acpi/parameters/acpica_version) |
59 | /proc/acpi/dsdt (/sys/firmware/acpi/tables/DSDT) | |
60 | /proc/acpi/fadt (/sys/firmware/acpi/tables/FACP) | |
61 | /proc/acpi/debug_layer (/sys/module/acpi/parameters/debug_layer) | |
62 | /proc/acpi/debug_level (/sys/module/acpi/parameters/debug_level) | |
63 | ||
64 | This option has no effect on /proc/acpi/ files | |
65 | and functions which do not yet exist in /sys. | |
66 | ||
67 | Say N to delete /proc/acpi/ files that have moved to /sys/ | |
fdcedbba | 68 | config ACPI_PROCFS_POWER |
9e527971 | 69 | bool "Deprecated power /proc/acpi directories" |
fdcedbba AS |
70 | depends on PROC_FS |
71 | default y | |
72 | ---help--- | |
73 | For backwards compatibility, this option allows | |
9e527971 | 74 | deprecated power /proc/acpi/ directories to exist, even when |
fdcedbba | 75 | they have been replaced by functions in /sys. |
9e527971 | 76 | The deprecated directories (and their replacements) include: |
fdcedbba AS |
77 | /proc/acpi/battery/* (/sys/class/power_supply/*) |
78 | /proc/acpi/ac_adapter/* (sys/class/power_supply/*) | |
9e527971 | 79 | This option has no effect on /proc/acpi/ directories |
fdcedbba | 80 | and functions, which do not yet exist in /sys |
b981c591 | 81 | |
9e527971 AC |
82 | Say N to delete power /proc/acpi/ directories that have moved to /sys/ |
83 | ||
97749cd9 AS |
84 | config ACPI_SYSFS_POWER |
85 | bool "Future power /sys interface" | |
86 | select POWER_SUPPLY | |
87 | default y | |
88 | ---help--- | |
89 | Say N to disable power /sys interface | |
9e527971 | 90 | |
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 |
63c4ec90 | 141 | select THERMAL |
1da177e4 LT |
142 | help |
143 | This driver implement the ACPI Extensions For Display Adapters | |
144 | for integrated graphics devices on motherboard, as specified in | |
145 | ACPI 2.0 Specification, Appendix B, allowing to perform some basic | |
146 | control like defining the video POST device, retrieving EDID information | |
147 | or to setup a video output, etc. | |
148 | Note that this is an ref. implementation only. It may or may not work | |
149 | for your integrated video device. | |
150 | ||
151 | config ACPI_FAN | |
152 | tristate "Fan" | |
63c4ec90 | 153 | select THERMAL |
07fefe4c | 154 | default y |
1da177e4 LT |
155 | help |
156 | This driver adds support for ACPI fan devices, allowing user-mode | |
157 | applications to perform basic fan control (on, off, status). | |
158 | ||
c8f7a62c | 159 | config ACPI_DOCK |
898b054f | 160 | bool "Dock" |
8d7bff6c | 161 | depends on EXPERIMENTAL |
c8f7a62c | 162 | help |
4be9309d SL |
163 | This driver adds support for ACPI controlled docking stations and removable |
164 | drive bays such as the IBM ultrabay or the Dell Module Bay. | |
01b57e73 | 165 | |
1da177e4 LT |
166 | config ACPI_PROCESSOR |
167 | tristate "Processor" | |
63c4ec90 | 168 | select THERMAL |
07fefe4c | 169 | default y |
1da177e4 LT |
170 | help |
171 | This driver installs ACPI as the idle handler for Linux, and uses | |
172 | ACPI C2 and C3 processor states to save power, on systems that | |
07fefe4c LB |
173 | support it. It is required by several flavors of cpufreq |
174 | Performance-state drivers. | |
1da177e4 LT |
175 | |
176 | config ACPI_HOTPLUG_CPU | |
cbfc1bae AB |
177 | bool |
178 | depends on ACPI_PROCESSOR && HOTPLUG_CPU | |
1da177e4 | 179 | select ACPI_CONTAINER |
cbfc1bae | 180 | default y |
1da177e4 LT |
181 | |
182 | config ACPI_THERMAL | |
183 | tristate "Thermal Zone" | |
184 | depends on ACPI_PROCESSOR | |
3f655ef8 | 185 | select THERMAL |
07fefe4c | 186 | default y |
1da177e4 LT |
187 | help |
188 | This driver adds support for ACPI thermal zones. Most mobile and | |
189 | some desktop systems support ACPI thermal zones. It is HIGHLY | |
190 | recommended that this option be enabled, as your processor(s) | |
191 | may be damaged without it. | |
192 | ||
193 | config ACPI_NUMA | |
194 | bool "NUMA support" | |
195 | depends on NUMA | |
762834e8 | 196 | depends on (X86 || IA64) |
1da177e4 LT |
197 | default y if IA64_GENERIC || IA64_SGI_SN2 |
198 | ||
bff431e4 CC |
199 | config ACPI_WMI |
200 | tristate "WMI (EXPERIMENTAL)" | |
9c2f7de8 | 201 | depends on X86 |
bff431e4 CC |
202 | depends on EXPERIMENTAL |
203 | help | |
20b45147 CC |
204 | This driver adds support for the ACPI-WMI (Windows Management |
205 | Instrumentation) mapper device (PNP0C14) found on some systems. | |
bff431e4 | 206 | |
20b45147 CC |
207 | ACPI-WMI is a proprietary extension to ACPI to expose parts of the |
208 | ACPI firmware to userspace - this is done through various vendor | |
209 | defined methods and data blocks in a PNP0C14 device, which are then | |
210 | made available for userspace to call. | |
211 | ||
212 | The implementation of this in Linux currently only exposes this to | |
213 | other kernel space drivers. | |
214 | ||
215 | This driver is a required dependency to build the firmware specific | |
216 | drivers needed on many machines, including Acer and HP laptops. | |
217 | ||
218 | It is safe to enable this driver even if your DSDT doesn't define | |
219 | any ACPI-WMI devices. | |
bff431e4 | 220 | |
1da177e4 LT |
221 | config ACPI_ASUS |
222 | tristate "ASUS/Medion Laptop Extras" | |
223 | depends on X86 | |
2039a6eb | 224 | select BACKLIGHT_CLASS_DEVICE |
1da177e4 LT |
225 | ---help--- |
226 | This driver provides support for extra features of ACPI-compatible | |
227 | ASUS laptops. As some of Medion laptops are made by ASUS, it may also | |
228 | support some Medion laptops (such as 9675 for example). It makes all | |
229 | the extra buttons generate standard ACPI events that go through | |
230 | /proc/acpi/events, and (on some models) adds support for changing the | |
231 | display brightness and output, switching the LCD backlight on and off, | |
232 | and most importantly, allows you to blink those fancy LEDs intended | |
233 | for reporting mail and wireless status. | |
234 | ||
235 | Note: display switching code is currently considered EXPERIMENTAL, | |
236 | toying with these values may even lock your machine. | |
85091b71 | 237 | |
1da177e4 LT |
238 | All settings are changed via /proc/acpi/asus directory entries. Owner |
239 | and group for these entries can be set with asus_uid and asus_gid | |
240 | parameters. | |
85091b71 | 241 | |
1da177e4 LT |
242 | More information and a userspace daemon for handling the extra buttons |
243 | at <http://sourceforge.net/projects/acpi4asus/>. | |
85091b71 | 244 | |
1da177e4 LT |
245 | If you have an ACPI-compatible ASUS laptop, say Y or M here. This |
246 | driver is still under development, so if your laptop is unsupported or | |
247 | something works not quite as expected, please use the mailing list | |
85091b71 CC |
248 | available on the above page (acpi4asus-user@lists.sourceforge.net). |
249 | ||
250 | NOTE: This driver is deprecated and will probably be removed soon, | |
251 | use asus-laptop instead. | |
252 | ||
1da177e4 LT |
253 | config ACPI_TOSHIBA |
254 | tristate "Toshiba Laptop Extras" | |
b3cef8f6 | 255 | depends on X86 && INPUT |
c41a40c5 | 256 | select INPUT_POLLDEV |
257 | select NET | |
258 | select RFKILL | |
c9263557 | 259 | select BACKLIGHT_CLASS_DEVICE |
1da177e4 LT |
260 | ---help--- |
261 | This driver adds support for access to certain system settings | |
262 | on "legacy free" Toshiba laptops. These laptops can be recognized by | |
263 | their lack of a BIOS setup menu and APM support. | |
264 | ||
265 | On these machines, all system configuration is handled through the | |
266 | ACPI. This driver is required for access to controls not covered | |
267 | by the general ACPI drivers, such as LCD brightness, video output, | |
268 | etc. | |
269 | ||
270 | This driver differs from the non-ACPI Toshiba laptop driver (located | |
271 | under "Processor type and features") in several aspects. | |
272 | Configuration is accessed by reading and writing text files in the | |
273 | /proc tree instead of by program interface to /dev. Furthermore, no | |
274 | power management functions are exposed, as those are handled by the | |
275 | general ACPI drivers. | |
276 | ||
277 | More information about this driver is available at | |
278 | <http://memebeam.org/toys/ToshibaAcpiDriver>. | |
279 | ||
280 | If you have a legacy free Toshiba laptop (such as the Libretto L1 | |
281 | series), say Y. | |
282 | ||
7ce9573e RD |
283 | config ACPI_CUSTOM_DSDT_FILE |
284 | string "Custom DSDT Table file to include" | |
285 | default "" | |
1da177e4 | 286 | depends on !STANDALONE |
1da177e4 | 287 | help |
d89e9d6b LB |
288 | This option supports a custom DSDT by linking it into the kernel. |
289 | See Documentation/acpi/dsdt-override.txt | |
290 | ||
c30fe7f7 UZ |
291 | Enter the full path name to the file which includes the AmlCode |
292 | declaration. | |
1da177e4 | 293 | |
7ce9573e RD |
294 | If unsure, don't enter a file name. |
295 | ||
296 | config ACPI_CUSTOM_DSDT | |
297 | bool | |
298 | default ACPI_CUSTOM_DSDT_FILE != "" | |
299 | ||
1da177e4 | 300 | config ACPI_BLACKLIST_YEAR |
2eb1bdba | 301 | int "Disable ACPI for systems before Jan 1st this year" if X86_32 |
1da177e4 LT |
302 | default 0 |
303 | help | |
304 | enter a 4-digit year, eg. 2001 to disable ACPI by default | |
305 | on platforms with DMI BIOS date before January 1st that year. | |
306 | "acpi=force" can be used to override this mechanism. | |
307 | ||
308 | Enter 0 to disable this mechanism and allow ACPI to | |
309 | run by default no matter what the year. (default) | |
310 | ||
311 | config ACPI_DEBUG | |
312 | bool "Debug Statements" | |
1da177e4 LT |
313 | default n |
314 | help | |
a0d84a92 BH |
315 | The ACPI subsystem can produce debug output. Saying Y enables this |
316 | output and increases the kernel size by around 50K. | |
317 | ||
318 | Use the acpi.debug_layer and acpi.debug_level kernel command-line | |
319 | parameters documented in Documentation/acpi/debug.txt and | |
320 | Documentation/kernel-parameters.txt to control the type and | |
321 | amount of debug output. | |
1da177e4 | 322 | |
798d9103 TR |
323 | config ACPI_DEBUG_FUNC_TRACE |
324 | bool "Additionally enable ACPI function tracing" | |
325 | default n | |
326 | depends on ACPI_DEBUG | |
327 | help | |
328 | ACPI Debug Statements slow down ACPI processing. Function trace | |
329 | is about half of the penalty and is rarely useful. | |
330 | ||
8344b568 AC |
331 | config ACPI_PCI_SLOT |
332 | tristate "PCI slot detection driver" | |
333 | default n | |
334 | help | |
335 | This driver will attempt to discover all PCI slots in your system, | |
336 | and creates entries in /sys/bus/pci/slots/. This feature can | |
337 | help you correlate PCI bus addresses with the physical geography | |
338 | of your slots. If you are unsure, say N. | |
339 | ||
1da177e4 LT |
340 | config ACPI_SYSTEM |
341 | bool | |
1da177e4 LT |
342 | default y |
343 | help | |
344 | This driver will enable your system to shut down using ACPI, and | |
345 | dump your ACPI DSDT table using /proc/acpi/dsdt. | |
346 | ||
1da177e4 | 347 | config X86_PM_TIMER |
e78256b8 | 348 | bool "Power Management Timer Support" if EMBEDDED |
1da177e4 | 349 | depends on X86 |
07fefe4c | 350 | default y |
1da177e4 LT |
351 | help |
352 | The Power Management Timer is available on all ACPI-capable, | |
353 | in most cases even if ACPI is unusable or blacklisted. | |
354 | ||
c73a668c | 355 | This timing source is not affected by power management features |
1da177e4 LT |
356 | like aggressive processor idling, throttling, frequency and/or |
357 | voltage scaling, unlike the commonly used Time Stamp Counter | |
358 | (TSC) timing source. | |
359 | ||
e78256b8 AK |
360 | You should nearly always say Y here because many modern |
361 | systems require this timer. | |
1da177e4 LT |
362 | |
363 | config ACPI_CONTAINER | |
364 | tristate "ACPI0004,PNP0A05 and PNP0A06 Container Driver (EXPERIMENTAL)" | |
365 | depends on EXPERIMENTAL | |
366 | default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO) | |
367 | ---help--- | |
45b1b196 KT |
368 | This allows _physical_ insertion and removal of CPUs and memory. |
369 | This can be useful, for example, on NUMA machines that support | |
370 | ACPI based physical hotplug of nodes, or non-NUMA machines that | |
371 | support physical cpu/memory hot-plug. | |
372 | ||
373 | If one selects "m", this driver can be loaded with | |
374 | "modprobe acpi_container". | |
1da177e4 LT |
375 | |
376 | config ACPI_HOTPLUG_MEMORY | |
377 | tristate "Memory Hotplug" | |
bc02af93 | 378 | depends on MEMORY_HOTPLUG |
1da177e4 LT |
379 | default n |
380 | help | |
381 | This driver adds supports for ACPI Memory Hotplug. This driver | |
382 | provides support for fielding notifications on ACPI memory | |
383 | devices (PNP0C80) which represent memory ranges that may be | |
384 | onlined or offlined during runtime. | |
385 | ||
386 | Enabling this driver assumes that your platform hardware | |
387 | and firmware have support for hot-plugging physical memory. If | |
388 | your system does not support physically adding or ripping out | |
c73a668c | 389 | memory DIMMs at some platform defined granularity (individually |
1da177e4 LT |
390 | or as a bank) at runtime, then you need not enable this driver. |
391 | ||
392 | If one selects "m," this driver can be loaded using the following | |
393 | command: | |
394 | $>modprobe acpi_memhotplug | |
3f86b832 RT |
395 | |
396 | config ACPI_SBS | |
94f6c086 | 397 | tristate "Smart Battery System" |
b4150fc4 | 398 | depends on X86 |
3f86b832 | 399 | help |
94f6c086 AS |
400 | This driver adds support for the Smart Battery System, another |
401 | type of access to battery information, found on some laptops. | |
3f86b832 | 402 | |
1da177e4 | 403 | endif # ACPI |