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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" |
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 | |
45 | depends on PM_SLEEP | |
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54 | they have been replaced by functions in /sys.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 LB |
159 | config ACPI_DOCK |
160 | tristate "Dock" | |
8d7bff6c | 161 | depends on EXPERIMENTAL |
c8f7a62c LB |
162 | help |
163 | This driver adds support for ACPI controlled docking stations | |
164 | ||
01b57e73 | 165 | config ACPI_BAY |
0ed1e38d | 166 | tristate "Removable Drive Bay (EXPERIMENTAL)" |
01b57e73 | 167 | depends on EXPERIMENTAL |
b1a316f6 | 168 | depends on ACPI_DOCK |
01b57e73 KCA |
169 | help |
170 | This driver adds support for ACPI controlled removable drive | |
171 | bays such as the IBM ultrabay or the Dell Module Bay. | |
172 | ||
1da177e4 LT |
173 | config ACPI_PROCESSOR |
174 | tristate "Processor" | |
63c4ec90 | 175 | select THERMAL |
07fefe4c | 176 | default y |
1da177e4 LT |
177 | help |
178 | This driver installs ACPI as the idle handler for Linux, and uses | |
179 | ACPI C2 and C3 processor states to save power, on systems that | |
07fefe4c LB |
180 | support it. It is required by several flavors of cpufreq |
181 | Performance-state drivers. | |
1da177e4 LT |
182 | |
183 | config ACPI_HOTPLUG_CPU | |
cbfc1bae AB |
184 | bool |
185 | depends on ACPI_PROCESSOR && HOTPLUG_CPU | |
1da177e4 | 186 | select ACPI_CONTAINER |
cbfc1bae | 187 | default y |
1da177e4 LT |
188 | |
189 | config ACPI_THERMAL | |
190 | tristate "Thermal Zone" | |
191 | depends on ACPI_PROCESSOR | |
3f655ef8 | 192 | select THERMAL |
07fefe4c | 193 | default y |
1da177e4 LT |
194 | help |
195 | This driver adds support for ACPI thermal zones. Most mobile and | |
196 | some desktop systems support ACPI thermal zones. It is HIGHLY | |
197 | recommended that this option be enabled, as your processor(s) | |
198 | may be damaged without it. | |
199 | ||
200 | config ACPI_NUMA | |
201 | bool "NUMA support" | |
202 | depends on NUMA | |
762834e8 | 203 | depends on (X86 || IA64) |
1da177e4 LT |
204 | default y if IA64_GENERIC || IA64_SGI_SN2 |
205 | ||
bff431e4 CC |
206 | config ACPI_WMI |
207 | tristate "WMI (EXPERIMENTAL)" | |
9c2f7de8 | 208 | depends on X86 |
bff431e4 CC |
209 | depends on EXPERIMENTAL |
210 | help | |
20b45147 CC |
211 | This driver adds support for the ACPI-WMI (Windows Management |
212 | Instrumentation) mapper device (PNP0C14) found on some systems. | |
bff431e4 | 213 | |
20b45147 CC |
214 | ACPI-WMI is a proprietary extension to ACPI to expose parts of the |
215 | ACPI firmware to userspace - this is done through various vendor | |
216 | defined methods and data blocks in a PNP0C14 device, which are then | |
217 | made available for userspace to call. | |
218 | ||
219 | The implementation of this in Linux currently only exposes this to | |
220 | other kernel space drivers. | |
221 | ||
222 | This driver is a required dependency to build the firmware specific | |
223 | drivers needed on many machines, including Acer and HP laptops. | |
224 | ||
225 | It is safe to enable this driver even if your DSDT doesn't define | |
226 | any ACPI-WMI devices. | |
bff431e4 | 227 | |
1da177e4 LT |
228 | config ACPI_ASUS |
229 | tristate "ASUS/Medion Laptop Extras" | |
230 | depends on X86 | |
2039a6eb | 231 | select BACKLIGHT_CLASS_DEVICE |
1da177e4 LT |
232 | ---help--- |
233 | This driver provides support for extra features of ACPI-compatible | |
234 | ASUS laptops. As some of Medion laptops are made by ASUS, it may also | |
235 | support some Medion laptops (such as 9675 for example). It makes all | |
236 | the extra buttons generate standard ACPI events that go through | |
237 | /proc/acpi/events, and (on some models) adds support for changing the | |
238 | display brightness and output, switching the LCD backlight on and off, | |
239 | and most importantly, allows you to blink those fancy LEDs intended | |
240 | for reporting mail and wireless status. | |
241 | ||
242 | Note: display switching code is currently considered EXPERIMENTAL, | |
243 | toying with these values may even lock your machine. | |
85091b71 | 244 | |
1da177e4 LT |
245 | All settings are changed via /proc/acpi/asus directory entries. Owner |
246 | and group for these entries can be set with asus_uid and asus_gid | |
247 | parameters. | |
85091b71 | 248 | |
1da177e4 LT |
249 | More information and a userspace daemon for handling the extra buttons |
250 | at <http://sourceforge.net/projects/acpi4asus/>. | |
85091b71 | 251 | |
1da177e4 LT |
252 | If you have an ACPI-compatible ASUS laptop, say Y or M here. This |
253 | driver is still under development, so if your laptop is unsupported or | |
254 | something works not quite as expected, please use the mailing list | |
85091b71 CC |
255 | available on the above page (acpi4asus-user@lists.sourceforge.net). |
256 | ||
257 | NOTE: This driver is deprecated and will probably be removed soon, | |
258 | use asus-laptop instead. | |
259 | ||
1da177e4 LT |
260 | config ACPI_TOSHIBA |
261 | tristate "Toshiba Laptop Extras" | |
b3cef8f6 | 262 | depends on X86 && INPUT |
c9263557 | 263 | select BACKLIGHT_CLASS_DEVICE |
1da177e4 LT |
264 | ---help--- |
265 | This driver adds support for access to certain system settings | |
266 | on "legacy free" Toshiba laptops. These laptops can be recognized by | |
267 | their lack of a BIOS setup menu and APM support. | |
268 | ||
269 | On these machines, all system configuration is handled through the | |
270 | ACPI. This driver is required for access to controls not covered | |
271 | by the general ACPI drivers, such as LCD brightness, video output, | |
272 | etc. | |
273 | ||
274 | This driver differs from the non-ACPI Toshiba laptop driver (located | |
275 | under "Processor type and features") in several aspects. | |
276 | Configuration is accessed by reading and writing text files in the | |
277 | /proc tree instead of by program interface to /dev. Furthermore, no | |
278 | power management functions are exposed, as those are handled by the | |
279 | general ACPI drivers. | |
280 | ||
281 | More information about this driver is available at | |
282 | <http://memebeam.org/toys/ToshibaAcpiDriver>. | |
283 | ||
284 | If you have a legacy free Toshiba laptop (such as the Libretto L1 | |
285 | series), say Y. | |
286 | ||
7ce9573e RD |
287 | config ACPI_CUSTOM_DSDT_FILE |
288 | string "Custom DSDT Table file to include" | |
289 | default "" | |
1da177e4 | 290 | depends on !STANDALONE |
1da177e4 | 291 | help |
d89e9d6b LB |
292 | This option supports a custom DSDT by linking it into the kernel. |
293 | See Documentation/acpi/dsdt-override.txt | |
294 | ||
c30fe7f7 UZ |
295 | Enter the full path name to the file which includes the AmlCode |
296 | declaration. | |
1da177e4 | 297 | |
7ce9573e RD |
298 | If unsure, don't enter a file name. |
299 | ||
300 | config ACPI_CUSTOM_DSDT | |
301 | bool | |
302 | default ACPI_CUSTOM_DSDT_FILE != "" | |
303 | ||
1da177e4 | 304 | config ACPI_BLACKLIST_YEAR |
2eb1bdba | 305 | int "Disable ACPI for systems before Jan 1st this year" if X86_32 |
1da177e4 LT |
306 | default 0 |
307 | help | |
308 | enter a 4-digit year, eg. 2001 to disable ACPI by default | |
309 | on platforms with DMI BIOS date before January 1st that year. | |
310 | "acpi=force" can be used to override this mechanism. | |
311 | ||
312 | Enter 0 to disable this mechanism and allow ACPI to | |
313 | run by default no matter what the year. (default) | |
314 | ||
315 | config ACPI_DEBUG | |
316 | bool "Debug Statements" | |
1da177e4 LT |
317 | default n |
318 | help | |
319 | The ACPI driver can optionally report errors with a great deal | |
320 | of verbosity. Saying Y enables these statements. This will increase | |
321 | your kernel size by around 50K. | |
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 | ||
1da177e4 LT |
331 | config ACPI_EC |
332 | bool | |
1da177e4 LT |
333 | default y |
334 | help | |
335 | This driver is required on some systems for the proper operation of | |
336 | the battery and thermal drivers. If you are compiling for a | |
337 | mobile system, say Y. | |
338 | ||
8344b568 AC |
339 | config ACPI_PCI_SLOT |
340 | tristate "PCI slot detection driver" | |
341 | default n | |
342 | help | |
343 | This driver will attempt to discover all PCI slots in your system, | |
344 | and creates entries in /sys/bus/pci/slots/. This feature can | |
345 | help you correlate PCI bus addresses with the physical geography | |
346 | of your slots. If you are unsure, say N. | |
347 | ||
1da177e4 LT |
348 | config ACPI_POWER |
349 | bool | |
1da177e4 LT |
350 | default y |
351 | ||
1da177e4 LT |
352 | config ACPI_SYSTEM |
353 | bool | |
1da177e4 LT |
354 | default y |
355 | help | |
356 | This driver will enable your system to shut down using ACPI, and | |
357 | dump your ACPI DSDT table using /proc/acpi/dsdt. | |
358 | ||
1da177e4 | 359 | config X86_PM_TIMER |
e78256b8 | 360 | bool "Power Management Timer Support" if EMBEDDED |
1da177e4 | 361 | depends on X86 |
07fefe4c | 362 | default y |
1da177e4 LT |
363 | help |
364 | The Power Management Timer is available on all ACPI-capable, | |
365 | in most cases even if ACPI is unusable or blacklisted. | |
366 | ||
c73a668c | 367 | This timing source is not affected by power management features |
1da177e4 LT |
368 | like aggressive processor idling, throttling, frequency and/or |
369 | voltage scaling, unlike the commonly used Time Stamp Counter | |
370 | (TSC) timing source. | |
371 | ||
e78256b8 AK |
372 | You should nearly always say Y here because many modern |
373 | systems require this timer. | |
1da177e4 LT |
374 | |
375 | config ACPI_CONTAINER | |
376 | tristate "ACPI0004,PNP0A05 and PNP0A06 Container Driver (EXPERIMENTAL)" | |
377 | depends on EXPERIMENTAL | |
378 | default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO) | |
379 | ---help--- | |
45b1b196 KT |
380 | This allows _physical_ insertion and removal of CPUs and memory. |
381 | This can be useful, for example, on NUMA machines that support | |
382 | ACPI based physical hotplug of nodes, or non-NUMA machines that | |
383 | support physical cpu/memory hot-plug. | |
384 | ||
385 | If one selects "m", this driver can be loaded with | |
386 | "modprobe acpi_container". | |
1da177e4 LT |
387 | |
388 | config ACPI_HOTPLUG_MEMORY | |
389 | tristate "Memory Hotplug" | |
bc02af93 | 390 | depends on MEMORY_HOTPLUG |
1da177e4 LT |
391 | default n |
392 | help | |
393 | This driver adds supports for ACPI Memory Hotplug. This driver | |
394 | provides support for fielding notifications on ACPI memory | |
395 | devices (PNP0C80) which represent memory ranges that may be | |
396 | onlined or offlined during runtime. | |
397 | ||
398 | Enabling this driver assumes that your platform hardware | |
399 | and firmware have support for hot-plugging physical memory. If | |
400 | your system does not support physically adding or ripping out | |
c73a668c | 401 | memory DIMMs at some platform defined granularity (individually |
1da177e4 LT |
402 | or as a bank) at runtime, then you need not enable this driver. |
403 | ||
404 | If one selects "m," this driver can be loaded using the following | |
405 | command: | |
406 | $>modprobe acpi_memhotplug | |
3f86b832 RT |
407 | |
408 | config ACPI_SBS | |
94f6c086 | 409 | tristate "Smart Battery System" |
b4150fc4 | 410 | depends on X86 |
3f86b832 | 411 | help |
94f6c086 AS |
412 | This driver adds support for the Smart Battery System, another |
413 | type of access to battery information, found on some laptops. | |
3f86b832 | 414 | |
1da177e4 | 415 | endif # ACPI |