Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | # |
2 | # ACPI Configuration | |
3 | # | |
4 | ||
3f2c48c9 JE |
5 | menuconfig ACPI |
6 | bool "ACPI Support (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 | ||
1da177e4 | 45 | config ACPI_SLEEP |
bfea6c2a | 46 | bool "Sleep States" |
5a72e04d | 47 | depends on X86 && (!SMP || SUSPEND_SMP) |
1da177e4 LT |
48 | default y |
49 | ---help--- | |
50 | This option adds support for ACPI suspend states. | |
51 | ||
52 | With this option, you will be able to put the system "to sleep". | |
53 | Sleep states are low power states for the system and devices. All | |
54 | of the system operating state is saved to either memory or disk | |
55 | (depending on the state), to allow the system to resume operation | |
56 | quickly at your request. | |
57 | ||
58 | Although this option sounds really nifty, barely any of the device | |
59 | drivers have been converted to the new driver model and hence few | |
60 | have proper power management support. | |
61 | ||
62 | This option is not recommended for anyone except those doing driver | |
63 | power management development. | |
64 | ||
65 | config ACPI_SLEEP_PROC_FS | |
66 | bool | |
67 | depends on ACPI_SLEEP && PROC_FS | |
68 | default y | |
69 | ||
ebb6e1a6 LB |
70 | config ACPI_SLEEP_PROC_SLEEP |
71 | bool "/proc/acpi/sleep (deprecated)" | |
72 | depends on ACPI_SLEEP_PROC_FS | |
73 | default n | |
74 | ---help--- | |
75 | Create /proc/acpi/sleep | |
76 | Deprecated by /sys/power/state | |
77 | ||
b981c591 | 78 | config ACPI_PROCFS |
fb804714 LB |
79 | bool "Deprecated /proc/acpi files" |
80 | depends on PROC_FS | |
b981c591 | 81 | ---help--- |
fb804714 LB |
82 | For backwards compatibility, this option allows |
83 | depricated /proc/acpi/ files to exist, even when | |
84 | they have been replaced by functions in /sys. | |
85 | The deprecated files (and their replacements) include: | |
86 | ||
87 | /proc/acpi/info (/sys/modules/acpi/parameters/acpica_version) | |
88 | /proc/acpi/dsdt (/sys/firmware/acpi/tables/DSDT) | |
89 | /proc/acpi/fadt (/sys/firmware/acpi/tables/FACP) | |
90 | /proc/acpi/debug_layer (/sys/module/acpi/parameters/debug_layer) | |
91 | /proc/acpi/debug_level (/sys/module/acpi/parameters/debug_level) | |
92 | ||
93 | This option has no effect on /proc/acpi/ files | |
94 | and functions which do not yet exist in /sys. | |
95 | ||
96 | Say N to delete /proc/acpi/ files that have moved to /sys/ | |
b981c591 | 97 | |
1da177e4 LT |
98 | config ACPI_AC |
99 | tristate "AC Adapter" | |
100 | depends on X86 | |
07fefe4c | 101 | default y |
1da177e4 LT |
102 | help |
103 | This driver adds support for the AC Adapter object, which indicates | |
07fefe4c LB |
104 | whether a system is on AC, or not. If you have a system that can |
105 | switch between A/C and battery, say Y. | |
1da177e4 LT |
106 | |
107 | config ACPI_BATTERY | |
108 | tristate "Battery" | |
109 | depends on X86 | |
07fefe4c | 110 | default y |
1da177e4 LT |
111 | help |
112 | This driver adds support for battery information through | |
113 | /proc/acpi/battery. If you have a mobile system with a battery, | |
114 | say Y. | |
115 | ||
116 | config ACPI_BUTTON | |
117 | tristate "Button" | |
c0968f0e | 118 | depends on INPUT |
07fefe4c | 119 | default y |
1da177e4 | 120 | help |
07fefe4c LB |
121 | This driver handles events on the power, sleep and lid buttons. |
122 | A daemon reads /proc/acpi/event and perform user-defined actions | |
123 | such as shutting down the system. This is necessary for | |
124 | software controlled poweroff. | |
1da177e4 LT |
125 | |
126 | config ACPI_VIDEO | |
127 | tristate "Video" | |
23b0f015 | 128 | depends on X86 && BACKLIGHT_CLASS_DEVICE && VIDEO_OUTPUT_CONTROL |
1da177e4 LT |
129 | help |
130 | This driver implement the ACPI Extensions For Display Adapters | |
131 | for integrated graphics devices on motherboard, as specified in | |
132 | ACPI 2.0 Specification, Appendix B, allowing to perform some basic | |
133 | control like defining the video POST device, retrieving EDID information | |
134 | or to setup a video output, etc. | |
135 | Note that this is an ref. implementation only. It may or may not work | |
136 | for your integrated video device. | |
137 | ||
138 | config ACPI_FAN | |
139 | tristate "Fan" | |
07fefe4c | 140 | default y |
1da177e4 LT |
141 | help |
142 | This driver adds support for ACPI fan devices, allowing user-mode | |
143 | applications to perform basic fan control (on, off, status). | |
144 | ||
c8f7a62c LB |
145 | config ACPI_DOCK |
146 | tristate "Dock" | |
8d7bff6c | 147 | depends on EXPERIMENTAL |
c8f7a62c LB |
148 | help |
149 | This driver adds support for ACPI controlled docking stations | |
150 | ||
01b57e73 | 151 | config ACPI_BAY |
0ed1e38d | 152 | tristate "Removable Drive Bay (EXPERIMENTAL)" |
01b57e73 | 153 | depends on EXPERIMENTAL |
b1a316f6 | 154 | depends on ACPI_DOCK |
01b57e73 KCA |
155 | help |
156 | This driver adds support for ACPI controlled removable drive | |
157 | bays such as the IBM ultrabay or the Dell Module Bay. | |
158 | ||
1da177e4 LT |
159 | config ACPI_PROCESSOR |
160 | tristate "Processor" | |
07fefe4c | 161 | default y |
1da177e4 LT |
162 | help |
163 | This driver installs ACPI as the idle handler for Linux, and uses | |
164 | ACPI C2 and C3 processor states to save power, on systems that | |
07fefe4c LB |
165 | support it. It is required by several flavors of cpufreq |
166 | Performance-state drivers. | |
1da177e4 LT |
167 | |
168 | config ACPI_HOTPLUG_CPU | |
cbfc1bae AB |
169 | bool |
170 | depends on ACPI_PROCESSOR && HOTPLUG_CPU | |
1da177e4 | 171 | select ACPI_CONTAINER |
cbfc1bae | 172 | default y |
1da177e4 LT |
173 | |
174 | config ACPI_THERMAL | |
175 | tristate "Thermal Zone" | |
176 | depends on ACPI_PROCESSOR | |
07fefe4c | 177 | default y |
1da177e4 LT |
178 | help |
179 | This driver adds support for ACPI thermal zones. Most mobile and | |
180 | some desktop systems support ACPI thermal zones. It is HIGHLY | |
181 | recommended that this option be enabled, as your processor(s) | |
182 | may be damaged without it. | |
183 | ||
184 | config ACPI_NUMA | |
185 | bool "NUMA support" | |
186 | depends on NUMA | |
762834e8 | 187 | depends on (X86 || IA64) |
1da177e4 LT |
188 | default y if IA64_GENERIC || IA64_SGI_SN2 |
189 | ||
190 | config ACPI_ASUS | |
191 | tristate "ASUS/Medion Laptop Extras" | |
192 | depends on X86 | |
2039a6eb | 193 | select BACKLIGHT_CLASS_DEVICE |
1da177e4 LT |
194 | ---help--- |
195 | This driver provides support for extra features of ACPI-compatible | |
196 | ASUS laptops. As some of Medion laptops are made by ASUS, it may also | |
197 | support some Medion laptops (such as 9675 for example). It makes all | |
198 | the extra buttons generate standard ACPI events that go through | |
199 | /proc/acpi/events, and (on some models) adds support for changing the | |
200 | display brightness and output, switching the LCD backlight on and off, | |
201 | and most importantly, allows you to blink those fancy LEDs intended | |
202 | for reporting mail and wireless status. | |
203 | ||
204 | Note: display switching code is currently considered EXPERIMENTAL, | |
205 | toying with these values may even lock your machine. | |
85091b71 | 206 | |
1da177e4 LT |
207 | All settings are changed via /proc/acpi/asus directory entries. Owner |
208 | and group for these entries can be set with asus_uid and asus_gid | |
209 | parameters. | |
85091b71 | 210 | |
1da177e4 LT |
211 | More information and a userspace daemon for handling the extra buttons |
212 | at <http://sourceforge.net/projects/acpi4asus/>. | |
85091b71 | 213 | |
1da177e4 LT |
214 | If you have an ACPI-compatible ASUS laptop, say Y or M here. This |
215 | driver is still under development, so if your laptop is unsupported or | |
216 | something works not quite as expected, please use the mailing list | |
85091b71 CC |
217 | available on the above page (acpi4asus-user@lists.sourceforge.net). |
218 | ||
219 | NOTE: This driver is deprecated and will probably be removed soon, | |
220 | use asus-laptop instead. | |
221 | ||
1da177e4 LT |
222 | config ACPI_TOSHIBA |
223 | tristate "Toshiba Laptop Extras" | |
224 | depends on X86 | |
c9263557 | 225 | select BACKLIGHT_CLASS_DEVICE |
1da177e4 LT |
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 | ||
249 | config ACPI_CUSTOM_DSDT | |
250 | bool "Include Custom DSDT" | |
251 | depends on !STANDALONE | |
252 | default n | |
253 | help | |
c73a668c | 254 | This option is to load a custom ACPI DSDT |
1da177e4 LT |
255 | If you don't know what that is, say N. |
256 | ||
257 | config ACPI_CUSTOM_DSDT_FILE | |
258 | string "Custom DSDT Table file to include" | |
259 | depends on ACPI_CUSTOM_DSDT | |
260 | default "" | |
261 | help | |
c30fe7f7 UZ |
262 | Enter the full path name to the file which includes the AmlCode |
263 | declaration. | |
1da177e4 LT |
264 | |
265 | config ACPI_BLACKLIST_YEAR | |
2eb1bdba | 266 | int "Disable ACPI for systems before Jan 1st this year" if X86_32 |
1da177e4 LT |
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 | ||
276 | config ACPI_DEBUG | |
277 | bool "Debug Statements" | |
1da177e4 LT |
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 | ||
798d9103 TR |
284 | config ACPI_DEBUG_FUNC_TRACE |
285 | bool "Additionally enable ACPI function tracing" | |
286 | default n | |
287 | depends on ACPI_DEBUG | |
288 | help | |
289 | ACPI Debug Statements slow down ACPI processing. Function trace | |
290 | is about half of the penalty and is rarely useful. | |
291 | ||
1da177e4 LT |
292 | config ACPI_EC |
293 | bool | |
1da177e4 LT |
294 | default y |
295 | help | |
296 | This driver is required on some systems for the proper operation of | |
297 | the battery and thermal drivers. If you are compiling for a | |
298 | mobile system, say Y. | |
299 | ||
300 | config ACPI_POWER | |
301 | bool | |
1da177e4 LT |
302 | default y |
303 | ||
1da177e4 LT |
304 | config ACPI_SYSTEM |
305 | bool | |
1da177e4 LT |
306 | default y |
307 | help | |
308 | This driver will enable your system to shut down using ACPI, and | |
309 | dump your ACPI DSDT table using /proc/acpi/dsdt. | |
310 | ||
1da177e4 | 311 | config X86_PM_TIMER |
e78256b8 | 312 | bool "Power Management Timer Support" if EMBEDDED |
1da177e4 | 313 | depends on X86 |
07fefe4c | 314 | default y |
1da177e4 LT |
315 | help |
316 | The Power Management Timer is available on all ACPI-capable, | |
317 | in most cases even if ACPI is unusable or blacklisted. | |
318 | ||
c73a668c | 319 | This timing source is not affected by power management features |
1da177e4 LT |
320 | like aggressive processor idling, throttling, frequency and/or |
321 | voltage scaling, unlike the commonly used Time Stamp Counter | |
322 | (TSC) timing source. | |
323 | ||
e78256b8 AK |
324 | You should nearly always say Y here because many modern |
325 | systems require this timer. | |
1da177e4 LT |
326 | |
327 | config ACPI_CONTAINER | |
328 | tristate "ACPI0004,PNP0A05 and PNP0A06 Container Driver (EXPERIMENTAL)" | |
329 | depends on EXPERIMENTAL | |
330 | default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO) | |
331 | ---help--- | |
45b1b196 KT |
332 | This allows _physical_ insertion and removal of CPUs and memory. |
333 | This can be useful, for example, on NUMA machines that support | |
334 | ACPI based physical hotplug of nodes, or non-NUMA machines that | |
335 | support physical cpu/memory hot-plug. | |
336 | ||
337 | If one selects "m", this driver can be loaded with | |
338 | "modprobe acpi_container". | |
1da177e4 LT |
339 | |
340 | config ACPI_HOTPLUG_MEMORY | |
341 | tristate "Memory Hotplug" | |
bc02af93 | 342 | depends on MEMORY_HOTPLUG |
1da177e4 LT |
343 | default n |
344 | help | |
345 | This driver adds supports for ACPI Memory Hotplug. This driver | |
346 | provides support for fielding notifications on ACPI memory | |
347 | devices (PNP0C80) which represent memory ranges that may be | |
348 | onlined or offlined during runtime. | |
349 | ||
350 | Enabling this driver assumes that your platform hardware | |
351 | and firmware have support for hot-plugging physical memory. If | |
352 | your system does not support physically adding or ripping out | |
c73a668c | 353 | memory DIMMs at some platform defined granularity (individually |
1da177e4 LT |
354 | or as a bank) at runtime, then you need not enable this driver. |
355 | ||
356 | If one selects "m," this driver can be loaded using the following | |
357 | command: | |
358 | $>modprobe acpi_memhotplug | |
3f86b832 RT |
359 | |
360 | config ACPI_SBS | |
361 | tristate "Smart Battery System (EXPERIMENTAL)" | |
b4150fc4 | 362 | depends on X86 |
3f86b832 | 363 | depends on EXPERIMENTAL |
3f86b832 RT |
364 | help |
365 | This driver adds support for the Smart Battery System. | |
3f86b832 RT |
366 | A "Smart Battery" is quite old and quite rare compared |
367 | to today's ACPI "Control Method" battery. | |
368 | ||
1da177e4 | 369 | endif # ACPI |