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Commit | Line | Data |
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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 | ||
b981c591 | 65 | config ACPI_PROCFS |
fb804714 LB |
66 | bool "Deprecated /proc/acpi files" |
67 | depends on PROC_FS | |
b981c591 | 68 | ---help--- |
fb804714 LB |
69 | For backwards compatibility, this option allows |
70 | depricated /proc/acpi/ files to exist, even when | |
71 | they have been replaced by functions in /sys. | |
72 | The deprecated files (and their replacements) include: | |
73 | ||
43532c8a | 74 | /proc/acpi/sleep (/sys/power/state) |
fb804714 LB |
75 | /proc/acpi/info (/sys/modules/acpi/parameters/acpica_version) |
76 | /proc/acpi/dsdt (/sys/firmware/acpi/tables/DSDT) | |
77 | /proc/acpi/fadt (/sys/firmware/acpi/tables/FACP) | |
78 | /proc/acpi/debug_layer (/sys/module/acpi/parameters/debug_layer) | |
79 | /proc/acpi/debug_level (/sys/module/acpi/parameters/debug_level) | |
80 | ||
81 | This option has no effect on /proc/acpi/ files | |
82 | and functions which do not yet exist in /sys. | |
83 | ||
84 | Say N to delete /proc/acpi/ files that have moved to /sys/ | |
b981c591 | 85 | |
1da177e4 LT |
86 | config ACPI_AC |
87 | tristate "AC Adapter" | |
88 | depends on X86 | |
07fefe4c | 89 | default y |
1da177e4 LT |
90 | help |
91 | This driver adds support for the AC Adapter object, which indicates | |
07fefe4c LB |
92 | whether a system is on AC, or not. If you have a system that can |
93 | switch between A/C and battery, say Y. | |
1da177e4 LT |
94 | |
95 | config ACPI_BATTERY | |
96 | tristate "Battery" | |
97 | depends on X86 | |
07fefe4c | 98 | default y |
1da177e4 LT |
99 | help |
100 | This driver adds support for battery information through | |
101 | /proc/acpi/battery. If you have a mobile system with a battery, | |
102 | say Y. | |
103 | ||
104 | config ACPI_BUTTON | |
105 | tristate "Button" | |
c0968f0e | 106 | depends on INPUT |
07fefe4c | 107 | default y |
1da177e4 | 108 | help |
07fefe4c LB |
109 | This driver handles events on the power, sleep and lid buttons. |
110 | A daemon reads /proc/acpi/event and perform user-defined actions | |
111 | such as shutting down the system. This is necessary for | |
112 | software controlled poweroff. | |
1da177e4 LT |
113 | |
114 | config ACPI_VIDEO | |
115 | tristate "Video" | |
23b0f015 | 116 | depends on X86 && BACKLIGHT_CLASS_DEVICE && VIDEO_OUTPUT_CONTROL |
1da177e4 LT |
117 | help |
118 | This driver implement the ACPI Extensions For Display Adapters | |
119 | for integrated graphics devices on motherboard, as specified in | |
120 | ACPI 2.0 Specification, Appendix B, allowing to perform some basic | |
121 | control like defining the video POST device, retrieving EDID information | |
122 | or to setup a video output, etc. | |
123 | Note that this is an ref. implementation only. It may or may not work | |
124 | for your integrated video device. | |
125 | ||
126 | config ACPI_FAN | |
127 | tristate "Fan" | |
07fefe4c | 128 | default y |
1da177e4 LT |
129 | help |
130 | This driver adds support for ACPI fan devices, allowing user-mode | |
131 | applications to perform basic fan control (on, off, status). | |
132 | ||
c8f7a62c LB |
133 | config ACPI_DOCK |
134 | tristate "Dock" | |
8d7bff6c | 135 | depends on EXPERIMENTAL |
c8f7a62c LB |
136 | help |
137 | This driver adds support for ACPI controlled docking stations | |
138 | ||
01b57e73 | 139 | config ACPI_BAY |
0ed1e38d | 140 | tristate "Removable Drive Bay (EXPERIMENTAL)" |
01b57e73 | 141 | depends on EXPERIMENTAL |
b1a316f6 | 142 | depends on ACPI_DOCK |
01b57e73 KCA |
143 | help |
144 | This driver adds support for ACPI controlled removable drive | |
145 | bays such as the IBM ultrabay or the Dell Module Bay. | |
146 | ||
1da177e4 LT |
147 | config ACPI_PROCESSOR |
148 | tristate "Processor" | |
07fefe4c | 149 | default y |
1da177e4 LT |
150 | help |
151 | This driver installs ACPI as the idle handler for Linux, and uses | |
152 | ACPI C2 and C3 processor states to save power, on systems that | |
07fefe4c LB |
153 | support it. It is required by several flavors of cpufreq |
154 | Performance-state drivers. | |
1da177e4 LT |
155 | |
156 | config ACPI_HOTPLUG_CPU | |
cbfc1bae AB |
157 | bool |
158 | depends on ACPI_PROCESSOR && HOTPLUG_CPU | |
1da177e4 | 159 | select ACPI_CONTAINER |
cbfc1bae | 160 | default y |
1da177e4 LT |
161 | |
162 | config ACPI_THERMAL | |
163 | tristate "Thermal Zone" | |
164 | depends on ACPI_PROCESSOR | |
07fefe4c | 165 | default y |
1da177e4 LT |
166 | help |
167 | This driver adds support for ACPI thermal zones. Most mobile and | |
168 | some desktop systems support ACPI thermal zones. It is HIGHLY | |
169 | recommended that this option be enabled, as your processor(s) | |
170 | may be damaged without it. | |
171 | ||
172 | config ACPI_NUMA | |
173 | bool "NUMA support" | |
174 | depends on NUMA | |
762834e8 | 175 | depends on (X86 || IA64) |
1da177e4 LT |
176 | default y if IA64_GENERIC || IA64_SGI_SN2 |
177 | ||
178 | config ACPI_ASUS | |
179 | tristate "ASUS/Medion Laptop Extras" | |
180 | depends on X86 | |
2039a6eb | 181 | select BACKLIGHT_CLASS_DEVICE |
1da177e4 LT |
182 | ---help--- |
183 | This driver provides support for extra features of ACPI-compatible | |
184 | ASUS laptops. As some of Medion laptops are made by ASUS, it may also | |
185 | support some Medion laptops (such as 9675 for example). It makes all | |
186 | the extra buttons generate standard ACPI events that go through | |
187 | /proc/acpi/events, and (on some models) adds support for changing the | |
188 | display brightness and output, switching the LCD backlight on and off, | |
189 | and most importantly, allows you to blink those fancy LEDs intended | |
190 | for reporting mail and wireless status. | |
191 | ||
192 | Note: display switching code is currently considered EXPERIMENTAL, | |
193 | toying with these values may even lock your machine. | |
85091b71 | 194 | |
1da177e4 LT |
195 | All settings are changed via /proc/acpi/asus directory entries. Owner |
196 | and group for these entries can be set with asus_uid and asus_gid | |
197 | parameters. | |
85091b71 | 198 | |
1da177e4 LT |
199 | More information and a userspace daemon for handling the extra buttons |
200 | at <http://sourceforge.net/projects/acpi4asus/>. | |
85091b71 | 201 | |
1da177e4 LT |
202 | If you have an ACPI-compatible ASUS laptop, say Y or M here. This |
203 | driver is still under development, so if your laptop is unsupported or | |
204 | something works not quite as expected, please use the mailing list | |
85091b71 CC |
205 | available on the above page (acpi4asus-user@lists.sourceforge.net). |
206 | ||
207 | NOTE: This driver is deprecated and will probably be removed soon, | |
208 | use asus-laptop instead. | |
209 | ||
1da177e4 LT |
210 | config ACPI_TOSHIBA |
211 | tristate "Toshiba Laptop Extras" | |
212 | depends on X86 | |
c9263557 | 213 | select BACKLIGHT_CLASS_DEVICE |
1da177e4 LT |
214 | ---help--- |
215 | This driver adds support for access to certain system settings | |
216 | on "legacy free" Toshiba laptops. These laptops can be recognized by | |
217 | their lack of a BIOS setup menu and APM support. | |
218 | ||
219 | On these machines, all system configuration is handled through the | |
220 | ACPI. This driver is required for access to controls not covered | |
221 | by the general ACPI drivers, such as LCD brightness, video output, | |
222 | etc. | |
223 | ||
224 | This driver differs from the non-ACPI Toshiba laptop driver (located | |
225 | under "Processor type and features") in several aspects. | |
226 | Configuration is accessed by reading and writing text files in the | |
227 | /proc tree instead of by program interface to /dev. Furthermore, no | |
228 | power management functions are exposed, as those are handled by the | |
229 | general ACPI drivers. | |
230 | ||
231 | More information about this driver is available at | |
232 | <http://memebeam.org/toys/ToshibaAcpiDriver>. | |
233 | ||
234 | If you have a legacy free Toshiba laptop (such as the Libretto L1 | |
235 | series), say Y. | |
236 | ||
237 | config ACPI_CUSTOM_DSDT | |
238 | bool "Include Custom DSDT" | |
239 | depends on !STANDALONE | |
240 | default n | |
241 | help | |
c73a668c | 242 | This option is to load a custom ACPI DSDT |
1da177e4 LT |
243 | If you don't know what that is, say N. |
244 | ||
245 | config ACPI_CUSTOM_DSDT_FILE | |
246 | string "Custom DSDT Table file to include" | |
247 | depends on ACPI_CUSTOM_DSDT | |
248 | default "" | |
249 | help | |
c30fe7f7 UZ |
250 | Enter the full path name to the file which includes the AmlCode |
251 | declaration. | |
1da177e4 LT |
252 | |
253 | config ACPI_BLACKLIST_YEAR | |
2eb1bdba | 254 | int "Disable ACPI for systems before Jan 1st this year" if X86_32 |
1da177e4 LT |
255 | default 0 |
256 | help | |
257 | enter a 4-digit year, eg. 2001 to disable ACPI by default | |
258 | on platforms with DMI BIOS date before January 1st that year. | |
259 | "acpi=force" can be used to override this mechanism. | |
260 | ||
261 | Enter 0 to disable this mechanism and allow ACPI to | |
262 | run by default no matter what the year. (default) | |
263 | ||
264 | config ACPI_DEBUG | |
265 | bool "Debug Statements" | |
1da177e4 LT |
266 | default n |
267 | help | |
268 | The ACPI driver can optionally report errors with a great deal | |
269 | of verbosity. Saying Y enables these statements. This will increase | |
270 | your kernel size by around 50K. | |
271 | ||
798d9103 TR |
272 | config ACPI_DEBUG_FUNC_TRACE |
273 | bool "Additionally enable ACPI function tracing" | |
274 | default n | |
275 | depends on ACPI_DEBUG | |
276 | help | |
277 | ACPI Debug Statements slow down ACPI processing. Function trace | |
278 | is about half of the penalty and is rarely useful. | |
279 | ||
1da177e4 LT |
280 | config ACPI_EC |
281 | bool | |
1da177e4 LT |
282 | default y |
283 | help | |
284 | This driver is required on some systems for the proper operation of | |
285 | the battery and thermal drivers. If you are compiling for a | |
286 | mobile system, say Y. | |
287 | ||
288 | config ACPI_POWER | |
289 | bool | |
1da177e4 LT |
290 | default y |
291 | ||
1da177e4 LT |
292 | config ACPI_SYSTEM |
293 | bool | |
1da177e4 LT |
294 | default y |
295 | help | |
296 | This driver will enable your system to shut down using ACPI, and | |
297 | dump your ACPI DSDT table using /proc/acpi/dsdt. | |
298 | ||
1da177e4 | 299 | config X86_PM_TIMER |
e78256b8 | 300 | bool "Power Management Timer Support" if EMBEDDED |
1da177e4 | 301 | depends on X86 |
07fefe4c | 302 | default y |
1da177e4 LT |
303 | help |
304 | The Power Management Timer is available on all ACPI-capable, | |
305 | in most cases even if ACPI is unusable or blacklisted. | |
306 | ||
c73a668c | 307 | This timing source is not affected by power management features |
1da177e4 LT |
308 | like aggressive processor idling, throttling, frequency and/or |
309 | voltage scaling, unlike the commonly used Time Stamp Counter | |
310 | (TSC) timing source. | |
311 | ||
e78256b8 AK |
312 | You should nearly always say Y here because many modern |
313 | systems require this timer. | |
1da177e4 LT |
314 | |
315 | config ACPI_CONTAINER | |
316 | tristate "ACPI0004,PNP0A05 and PNP0A06 Container Driver (EXPERIMENTAL)" | |
317 | depends on EXPERIMENTAL | |
318 | default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO) | |
319 | ---help--- | |
45b1b196 KT |
320 | This allows _physical_ insertion and removal of CPUs and memory. |
321 | This can be useful, for example, on NUMA machines that support | |
322 | ACPI based physical hotplug of nodes, or non-NUMA machines that | |
323 | support physical cpu/memory hot-plug. | |
324 | ||
325 | If one selects "m", this driver can be loaded with | |
326 | "modprobe acpi_container". | |
1da177e4 LT |
327 | |
328 | config ACPI_HOTPLUG_MEMORY | |
329 | tristate "Memory Hotplug" | |
bc02af93 | 330 | depends on MEMORY_HOTPLUG |
1da177e4 LT |
331 | default n |
332 | help | |
333 | This driver adds supports for ACPI Memory Hotplug. This driver | |
334 | provides support for fielding notifications on ACPI memory | |
335 | devices (PNP0C80) which represent memory ranges that may be | |
336 | onlined or offlined during runtime. | |
337 | ||
338 | Enabling this driver assumes that your platform hardware | |
339 | and firmware have support for hot-plugging physical memory. If | |
340 | your system does not support physically adding or ripping out | |
c73a668c | 341 | memory DIMMs at some platform defined granularity (individually |
1da177e4 LT |
342 | or as a bank) at runtime, then you need not enable this driver. |
343 | ||
344 | If one selects "m," this driver can be loaded using the following | |
345 | command: | |
346 | $>modprobe acpi_memhotplug | |
3f86b832 RT |
347 | |
348 | config ACPI_SBS | |
349 | tristate "Smart Battery System (EXPERIMENTAL)" | |
b4150fc4 | 350 | depends on X86 |
3f86b832 | 351 | depends on EXPERIMENTAL |
3f86b832 RT |
352 | help |
353 | This driver adds support for the Smart Battery System. | |
3f86b832 RT |
354 | A "Smart Battery" is quite old and quite rare compared |
355 | to today's ACPI "Control Method" battery. | |
356 | ||
1da177e4 | 357 | endif # ACPI |