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1da177e4 LT |
1 | # |
2 | # ACPI Configuration | |
3 | # | |
4 | ||
5 | menu "ACPI (Advanced Configuration and Power Interface) Support" | |
6 | depends on !X86_VISWS | |
7 | depends on !IA64_HP_SIM | |
8 | depends on IA64 || X86 | |
9 | ||
10 | config ACPI | |
11 | bool "ACPI Support" | |
12 | depends on IA64 || X86 | |
1300124f | 13 | depends on PCI |
6153df7b | 14 | select PM |
1da177e4 LT |
15 | default y |
16 | ---help--- | |
17 | Advanced Configuration and Power Interface (ACPI) support for | |
18 | Linux requires an ACPI compliant platform (hardware/firmware), | |
19 | and assumes the presence of OS-directed configuration and power | |
20 | management (OSPM) software. This option will enlarge your | |
21 | kernel by about 70K. | |
22 | ||
23 | Linux ACPI provides a robust functional replacement for several | |
24 | legacy configuration and power management interfaces, including | |
25 | the Plug-and-Play BIOS specification (PnP BIOS), the | |
26 | MultiProcessor Specification (MPS), and the Advanced Power | |
27 | Management (APM) specification. If both ACPI and APM support | |
28 | are configured, whichever is loaded first shall be used. | |
29 | ||
30 | The ACPI SourceForge project contains the latest source code, | |
31 | documentation, tools, mailing list subscription, and other | |
32 | information. This project is available at: | |
33 | <http://sourceforge.net/projects/acpi> | |
34 | ||
35 | Linux support for ACPI is based on Intel Corporation's ACPI | |
36 | Component Architecture (ACPI CA). For more information see: | |
37 | <http://developer.intel.com/technology/iapc/acpi> | |
38 | ||
39 | ACPI is an open industry specification co-developed by Compaq, | |
40 | Intel, Microsoft, Phoenix, and Toshiba. The specification is | |
41 | available at: | |
42 | <http://www.acpi.info> | |
43 | ||
3e11c3ce LB |
44 | if ACPI |
45 | ||
1da177e4 | 46 | config ACPI_SLEEP |
bfea6c2a | 47 | bool "Sleep States" |
5a72e04d | 48 | depends on X86 && (!SMP || SUSPEND_SMP) |
bfea6c2a | 49 | depends on PM |
1da177e4 LT |
50 | default y |
51 | ---help--- | |
52 | This option adds support for ACPI suspend states. | |
53 | ||
54 | With this option, you will be able to put the system "to sleep". | |
55 | Sleep states are low power states for the system and devices. All | |
56 | of the system operating state is saved to either memory or disk | |
57 | (depending on the state), to allow the system to resume operation | |
58 | quickly at your request. | |
59 | ||
60 | Although this option sounds really nifty, barely any of the device | |
61 | drivers have been converted to the new driver model and hence few | |
62 | have proper power management support. | |
63 | ||
64 | This option is not recommended for anyone except those doing driver | |
65 | power management development. | |
66 | ||
67 | config ACPI_SLEEP_PROC_FS | |
68 | bool | |
69 | depends on ACPI_SLEEP && PROC_FS | |
70 | default y | |
71 | ||
ebb6e1a6 LB |
72 | config ACPI_SLEEP_PROC_SLEEP |
73 | bool "/proc/acpi/sleep (deprecated)" | |
74 | depends on ACPI_SLEEP_PROC_FS | |
75 | default n | |
76 | ---help--- | |
77 | Create /proc/acpi/sleep | |
78 | Deprecated by /sys/power/state | |
79 | ||
1da177e4 LT |
80 | config ACPI_AC |
81 | tristate "AC Adapter" | |
82 | depends on X86 | |
07fefe4c | 83 | default y |
1da177e4 LT |
84 | help |
85 | This driver adds support for the AC Adapter object, which indicates | |
07fefe4c LB |
86 | whether a system is on AC, or not. If you have a system that can |
87 | switch between A/C and battery, say Y. | |
1da177e4 LT |
88 | |
89 | config ACPI_BATTERY | |
90 | tristate "Battery" | |
91 | depends on X86 | |
07fefe4c | 92 | default y |
1da177e4 LT |
93 | help |
94 | This driver adds support for battery information through | |
95 | /proc/acpi/battery. If you have a mobile system with a battery, | |
96 | say Y. | |
97 | ||
98 | config ACPI_BUTTON | |
99 | tristate "Button" | |
07fefe4c | 100 | default y |
1da177e4 | 101 | help |
07fefe4c LB |
102 | This driver handles events on the power, sleep and lid buttons. |
103 | A daemon reads /proc/acpi/event and perform user-defined actions | |
104 | such as shutting down the system. This is necessary for | |
105 | software controlled poweroff. | |
1da177e4 LT |
106 | |
107 | config ACPI_VIDEO | |
108 | tristate "Video" | |
eb7b6b32 | 109 | depends on X86 |
1da177e4 LT |
110 | help |
111 | This driver implement the ACPI Extensions For Display Adapters | |
112 | for integrated graphics devices on motherboard, as specified in | |
113 | ACPI 2.0 Specification, Appendix B, allowing to perform some basic | |
114 | control like defining the video POST device, retrieving EDID information | |
115 | or to setup a video output, etc. | |
116 | Note that this is an ref. implementation only. It may or may not work | |
117 | for your integrated video device. | |
118 | ||
fb9802fa | 119 | config ACPI_HOTKEY |
bfea6c2a | 120 | tristate "Generic Hotkey (EXPERIMENTAL)" |
fb9802fa | 121 | depends on EXPERIMENTAL |
eb7b6b32 | 122 | depends on X86 |
79cda7d0 | 123 | default n |
fb9802fa | 124 | help |
79cda7d0 LY |
125 | Experimental consolidated hotkey driver. |
126 | If you are unsure, say N. | |
fb9802fa | 127 | |
1da177e4 LT |
128 | config ACPI_FAN |
129 | tristate "Fan" | |
07fefe4c | 130 | default y |
1da177e4 LT |
131 | help |
132 | This driver adds support for ACPI fan devices, allowing user-mode | |
133 | applications to perform basic fan control (on, off, status). | |
134 | ||
c8f7a62c LB |
135 | config ACPI_DOCK |
136 | tristate "Dock" | |
8d7bff6c | 137 | depends on EXPERIMENTAL |
c8f7a62c LB |
138 | help |
139 | This driver adds support for ACPI controlled docking stations | |
140 | ||
1da177e4 LT |
141 | config ACPI_PROCESSOR |
142 | tristate "Processor" | |
07fefe4c | 143 | default y |
1da177e4 LT |
144 | help |
145 | This driver installs ACPI as the idle handler for Linux, and uses | |
146 | ACPI C2 and C3 processor states to save power, on systems that | |
07fefe4c LB |
147 | support it. It is required by several flavors of cpufreq |
148 | Performance-state drivers. | |
1da177e4 LT |
149 | |
150 | config ACPI_HOTPLUG_CPU | |
cbfc1bae AB |
151 | bool |
152 | depends on ACPI_PROCESSOR && HOTPLUG_CPU | |
1da177e4 | 153 | select ACPI_CONTAINER |
cbfc1bae | 154 | default y |
1da177e4 LT |
155 | |
156 | config ACPI_THERMAL | |
157 | tristate "Thermal Zone" | |
158 | depends on ACPI_PROCESSOR | |
07fefe4c | 159 | default y |
1da177e4 LT |
160 | help |
161 | This driver adds support for ACPI thermal zones. Most mobile and | |
162 | some desktop systems support ACPI thermal zones. It is HIGHLY | |
163 | recommended that this option be enabled, as your processor(s) | |
164 | may be damaged without it. | |
165 | ||
166 | config ACPI_NUMA | |
167 | bool "NUMA support" | |
168 | depends on NUMA | |
762834e8 | 169 | depends on (X86 || IA64) |
1da177e4 LT |
170 | default y if IA64_GENERIC || IA64_SGI_SN2 |
171 | ||
172 | config ACPI_ASUS | |
173 | tristate "ASUS/Medion Laptop Extras" | |
174 | depends on X86 | |
1da177e4 LT |
175 | ---help--- |
176 | This driver provides support for extra features of ACPI-compatible | |
177 | ASUS laptops. As some of Medion laptops are made by ASUS, it may also | |
178 | support some Medion laptops (such as 9675 for example). It makes all | |
179 | the extra buttons generate standard ACPI events that go through | |
180 | /proc/acpi/events, and (on some models) adds support for changing the | |
181 | display brightness and output, switching the LCD backlight on and off, | |
182 | and most importantly, allows you to blink those fancy LEDs intended | |
183 | for reporting mail and wireless status. | |
184 | ||
185 | Note: display switching code is currently considered EXPERIMENTAL, | |
186 | toying with these values may even lock your machine. | |
187 | ||
188 | All settings are changed via /proc/acpi/asus directory entries. Owner | |
189 | and group for these entries can be set with asus_uid and asus_gid | |
190 | parameters. | |
191 | ||
192 | More information and a userspace daemon for handling the extra buttons | |
193 | at <http://sourceforge.net/projects/acpi4asus/>. | |
194 | ||
195 | If you have an ACPI-compatible ASUS laptop, say Y or M here. This | |
196 | driver is still under development, so if your laptop is unsupported or | |
197 | something works not quite as expected, please use the mailing list | |
198 | available on the above page (acpi4asus-user@lists.sourceforge.net) | |
199 | ||
200 | config ACPI_IBM | |
201 | tristate "IBM ThinkPad Laptop Extras" | |
202 | depends on X86 | |
1da177e4 LT |
203 | ---help--- |
204 | This is a Linux ACPI driver for the IBM ThinkPad laptops. It adds | |
205 | support for Fn-Fx key combinations, Bluetooth control, video | |
206 | output switching, ThinkLight control, UltraBay eject and more. | |
207 | For more information about this driver see <file:Documentation/ibm-acpi.txt> | |
208 | and <http://ibm-acpi.sf.net/> . | |
209 | ||
210 | If you have an IBM ThinkPad laptop, say Y or M here. | |
211 | ||
63e5f248 KA |
212 | config ACPI_IBM_DOCK |
213 | bool "Legacy Docking Station Support" | |
214 | depends on ACPI_IBM | |
8d7bff6c | 215 | depends on ACPI_DOCK=n |
63e5f248 KA |
216 | default n |
217 | ---help--- | |
218 | Allows the ibm_acpi driver to handle docking station events. | |
219 | This support is obsoleted by CONFIG_HOTPLUG_PCI_ACPI. It will | |
220 | allow locking and removing the laptop from the docking station, | |
221 | but will not properly connect PCI devices. | |
222 | ||
223 | If you are not sure, say N here. | |
224 | ||
1da177e4 LT |
225 | config ACPI_TOSHIBA |
226 | tristate "Toshiba Laptop Extras" | |
227 | depends on X86 | |
1da177e4 LT |
228 | ---help--- |
229 | This driver adds support for access to certain system settings | |
230 | on "legacy free" Toshiba laptops. These laptops can be recognized by | |
231 | their lack of a BIOS setup menu and APM support. | |
232 | ||
233 | On these machines, all system configuration is handled through the | |
234 | ACPI. This driver is required for access to controls not covered | |
235 | by the general ACPI drivers, such as LCD brightness, video output, | |
236 | etc. | |
237 | ||
238 | This driver differs from the non-ACPI Toshiba laptop driver (located | |
239 | under "Processor type and features") in several aspects. | |
240 | Configuration is accessed by reading and writing text files in the | |
241 | /proc tree instead of by program interface to /dev. Furthermore, no | |
242 | power management functions are exposed, as those are handled by the | |
243 | general ACPI drivers. | |
244 | ||
245 | More information about this driver is available at | |
246 | <http://memebeam.org/toys/ToshibaAcpiDriver>. | |
247 | ||
248 | If you have a legacy free Toshiba laptop (such as the Libretto L1 | |
249 | series), say Y. | |
250 | ||
251 | config ACPI_CUSTOM_DSDT | |
252 | bool "Include Custom DSDT" | |
253 | depends on !STANDALONE | |
254 | default n | |
255 | help | |
c73a668c | 256 | This option is to load a custom ACPI DSDT |
1da177e4 LT |
257 | If you don't know what that is, say N. |
258 | ||
259 | config ACPI_CUSTOM_DSDT_FILE | |
260 | string "Custom DSDT Table file to include" | |
261 | depends on ACPI_CUSTOM_DSDT | |
262 | default "" | |
263 | help | |
c30fe7f7 UZ |
264 | Enter the full path name to the file which includes the AmlCode |
265 | declaration. | |
1da177e4 LT |
266 | |
267 | config ACPI_BLACKLIST_YEAR | |
2eb1bdba | 268 | int "Disable ACPI for systems before Jan 1st this year" if X86_32 |
1da177e4 LT |
269 | default 0 |
270 | help | |
271 | enter a 4-digit year, eg. 2001 to disable ACPI by default | |
272 | on platforms with DMI BIOS date before January 1st that year. | |
273 | "acpi=force" can be used to override this mechanism. | |
274 | ||
275 | Enter 0 to disable this mechanism and allow ACPI to | |
276 | run by default no matter what the year. (default) | |
277 | ||
278 | config ACPI_DEBUG | |
279 | bool "Debug Statements" | |
1da177e4 LT |
280 | default n |
281 | help | |
282 | The ACPI driver can optionally report errors with a great deal | |
283 | of verbosity. Saying Y enables these statements. This will increase | |
284 | your kernel size by around 50K. | |
285 | ||
1da177e4 LT |
286 | config ACPI_EC |
287 | bool | |
1da177e4 LT |
288 | default y |
289 | help | |
290 | This driver is required on some systems for the proper operation of | |
291 | the battery and thermal drivers. If you are compiling for a | |
292 | mobile system, say Y. | |
293 | ||
294 | config ACPI_POWER | |
295 | bool | |
1da177e4 LT |
296 | default y |
297 | ||
1da177e4 LT |
298 | config ACPI_SYSTEM |
299 | bool | |
1da177e4 LT |
300 | default y |
301 | help | |
302 | This driver will enable your system to shut down using ACPI, and | |
303 | dump your ACPI DSDT table using /proc/acpi/dsdt. | |
304 | ||
1da177e4 | 305 | config X86_PM_TIMER |
e78256b8 | 306 | bool "Power Management Timer Support" if EMBEDDED |
1da177e4 | 307 | depends on X86 |
07fefe4c | 308 | default y |
1da177e4 LT |
309 | help |
310 | The Power Management Timer is available on all ACPI-capable, | |
311 | in most cases even if ACPI is unusable or blacklisted. | |
312 | ||
c73a668c | 313 | This timing source is not affected by power management features |
1da177e4 LT |
314 | like aggressive processor idling, throttling, frequency and/or |
315 | voltage scaling, unlike the commonly used Time Stamp Counter | |
316 | (TSC) timing source. | |
317 | ||
e78256b8 AK |
318 | You should nearly always say Y here because many modern |
319 | systems require this timer. | |
1da177e4 LT |
320 | |
321 | config ACPI_CONTAINER | |
322 | tristate "ACPI0004,PNP0A05 and PNP0A06 Container Driver (EXPERIMENTAL)" | |
323 | depends on EXPERIMENTAL | |
324 | default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO) | |
325 | ---help--- | |
45b1b196 KT |
326 | This allows _physical_ insertion and removal of CPUs and memory. |
327 | This can be useful, for example, on NUMA machines that support | |
328 | ACPI based physical hotplug of nodes, or non-NUMA machines that | |
329 | support physical cpu/memory hot-plug. | |
330 | ||
331 | If one selects "m", this driver can be loaded with | |
332 | "modprobe acpi_container". | |
1da177e4 LT |
333 | |
334 | config ACPI_HOTPLUG_MEMORY | |
335 | tristate "Memory Hotplug" | |
336 | depends on ACPI | |
bc02af93 | 337 | depends on MEMORY_HOTPLUG |
1da177e4 LT |
338 | default n |
339 | help | |
340 | This driver adds supports for ACPI Memory Hotplug. This driver | |
341 | provides support for fielding notifications on ACPI memory | |
342 | devices (PNP0C80) which represent memory ranges that may be | |
343 | onlined or offlined during runtime. | |
344 | ||
345 | Enabling this driver assumes that your platform hardware | |
346 | and firmware have support for hot-plugging physical memory. If | |
347 | your system does not support physically adding or ripping out | |
c73a668c | 348 | memory DIMMs at some platform defined granularity (individually |
1da177e4 LT |
349 | or as a bank) at runtime, then you need not enable this driver. |
350 | ||
351 | If one selects "m," this driver can be loaded using the following | |
352 | command: | |
353 | $>modprobe acpi_memhotplug | |
3f86b832 RT |
354 | |
355 | config ACPI_SBS | |
356 | tristate "Smart Battery System (EXPERIMENTAL)" | |
357 | depends on X86 && I2C | |
358 | depends on EXPERIMENTAL | |
3f86b832 RT |
359 | help |
360 | This driver adds support for the Smart Battery System. | |
361 | Depends on I2C (Device Drivers ---> I2C support) | |
362 | A "Smart Battery" is quite old and quite rare compared | |
363 | to today's ACPI "Control Method" battery. | |
364 | ||
1da177e4 LT |
365 | endif # ACPI |
366 | ||
367 | endmenu |