Kconfig 11 KB

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  1. #
  2. # ACPI Configuration
  3. #
  4. menu "ACPI (Advanced Configuration and Power Interface) Support"
  5. depends on PM
  6. depends on !X86_VISWS
  7. depends on !IA64_HP_SIM
  8. depends on IA64 || X86
  9. config ACPI
  10. bool "ACPI Support"
  11. depends on IA64 || X86
  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. Linux ACPI provides a robust functional replacement for several
  20. legacy configuration and power management interfaces, including
  21. the Plug-and-Play BIOS specification (PnP BIOS), the
  22. MultiProcessor Specification (MPS), and the Advanced Power
  23. Management (APM) specification. If both ACPI and APM support
  24. are configured, whichever is loaded first shall be used.
  25. The ACPI SourceForge project contains the latest source code,
  26. documentation, tools, mailing list subscription, and other
  27. information. This project is available at:
  28. <http://sourceforge.net/projects/acpi>
  29. Linux support for ACPI is based on Intel Corporation's ACPI
  30. Component Architecture (ACPI CA). For more information see:
  31. <http://developer.intel.com/technology/iapc/acpi>
  32. ACPI is an open industry specification co-developed by Compaq,
  33. Intel, Microsoft, Phoenix, and Toshiba. The specification is
  34. available at:
  35. <http://www.acpi.info>
  36. if ACPI
  37. config ACPI_SLEEP
  38. bool "Sleep States"
  39. depends on X86 && (!SMP || SUSPEND_SMP)
  40. depends on PM
  41. default y
  42. ---help---
  43. This option adds support for ACPI suspend states.
  44. With this option, you will be able to put the system "to sleep".
  45. Sleep states are low power states for the system and devices. All
  46. of the system operating state is saved to either memory or disk
  47. (depending on the state), to allow the system to resume operation
  48. quickly at your request.
  49. Although this option sounds really nifty, barely any of the device
  50. drivers have been converted to the new driver model and hence few
  51. have proper power management support.
  52. This option is not recommended for anyone except those doing driver
  53. power management development.
  54. config ACPI_SLEEP_PROC_FS
  55. bool
  56. depends on ACPI_SLEEP && PROC_FS
  57. default y
  58. config ACPI_SLEEP_PROC_SLEEP
  59. bool "/proc/acpi/sleep (deprecated)"
  60. depends on ACPI_SLEEP_PROC_FS
  61. default n
  62. ---help---
  63. Create /proc/acpi/sleep
  64. Deprecated by /sys/power/state
  65. config ACPI_AC
  66. tristate "AC Adapter"
  67. depends on X86
  68. default y
  69. help
  70. This driver adds support for the AC Adapter object, which indicates
  71. whether a system is on AC, or not. If you have a system that can
  72. switch between A/C and battery, say Y.
  73. config ACPI_BATTERY
  74. tristate "Battery"
  75. depends on X86
  76. default y
  77. help
  78. This driver adds support for battery information through
  79. /proc/acpi/battery. If you have a mobile system with a battery,
  80. say Y.
  81. config ACPI_BUTTON
  82. tristate "Button"
  83. default y
  84. help
  85. This driver handles events on the power, sleep and lid buttons.
  86. A daemon reads /proc/acpi/event and perform user-defined actions
  87. such as shutting down the system. This is necessary for
  88. software controlled poweroff.
  89. config ACPI_VIDEO
  90. tristate "Video"
  91. depends on X86
  92. default y
  93. help
  94. This driver implement the ACPI Extensions For Display Adapters
  95. for integrated graphics devices on motherboard, as specified in
  96. ACPI 2.0 Specification, Appendix B, allowing to perform some basic
  97. control like defining the video POST device, retrieving EDID information
  98. or to setup a video output, etc.
  99. Note that this is an ref. implementation only. It may or may not work
  100. for your integrated video device.
  101. config ACPI_HOTKEY
  102. tristate "Generic Hotkey (EXPERIMENTAL)"
  103. depends on EXPERIMENTAL
  104. depends on X86
  105. default n
  106. help
  107. Experimental consolidated hotkey driver.
  108. If you are unsure, say N.
  109. config ACPI_FAN
  110. tristate "Fan"
  111. default y
  112. help
  113. This driver adds support for ACPI fan devices, allowing user-mode
  114. applications to perform basic fan control (on, off, status).
  115. config ACPI_PROCESSOR
  116. tristate "Processor"
  117. default y
  118. help
  119. This driver installs ACPI as the idle handler for Linux, and uses
  120. ACPI C2 and C3 processor states to save power, on systems that
  121. support it. It is required by several flavors of cpufreq
  122. Performance-state drivers.
  123. config ACPI_HOTPLUG_CPU
  124. bool
  125. depends on ACPI_PROCESSOR && HOTPLUG_CPU
  126. select ACPI_CONTAINER
  127. default y
  128. config ACPI_THERMAL
  129. tristate "Thermal Zone"
  130. depends on ACPI_PROCESSOR
  131. default y
  132. help
  133. This driver adds support for ACPI thermal zones. Most mobile and
  134. some desktop systems support ACPI thermal zones. It is HIGHLY
  135. recommended that this option be enabled, as your processor(s)
  136. may be damaged without it.
  137. config ACPI_NUMA
  138. bool "NUMA support"
  139. depends on NUMA
  140. depends on (IA64 || X86_64)
  141. default y if IA64_GENERIC || IA64_SGI_SN2
  142. config ACPI_ASUS
  143. tristate "ASUS/Medion Laptop Extras"
  144. depends on X86
  145. default y
  146. ---help---
  147. This driver provides support for extra features of ACPI-compatible
  148. ASUS laptops. As some of Medion laptops are made by ASUS, it may also
  149. support some Medion laptops (such as 9675 for example). It makes all
  150. the extra buttons generate standard ACPI events that go through
  151. /proc/acpi/events, and (on some models) adds support for changing the
  152. display brightness and output, switching the LCD backlight on and off,
  153. and most importantly, allows you to blink those fancy LEDs intended
  154. for reporting mail and wireless status.
  155. Note: display switching code is currently considered EXPERIMENTAL,
  156. toying with these values may even lock your machine.
  157. All settings are changed via /proc/acpi/asus directory entries. Owner
  158. and group for these entries can be set with asus_uid and asus_gid
  159. parameters.
  160. More information and a userspace daemon for handling the extra buttons
  161. at <http://sourceforge.net/projects/acpi4asus/>.
  162. If you have an ACPI-compatible ASUS laptop, say Y or M here. This
  163. driver is still under development, so if your laptop is unsupported or
  164. something works not quite as expected, please use the mailing list
  165. available on the above page (acpi4asus-user@lists.sourceforge.net)
  166. config ACPI_IBM
  167. tristate "IBM ThinkPad Laptop Extras"
  168. depends on X86
  169. default y
  170. ---help---
  171. This is a Linux ACPI driver for the IBM ThinkPad laptops. It adds
  172. support for Fn-Fx key combinations, Bluetooth control, video
  173. output switching, ThinkLight control, UltraBay eject and more.
  174. For more information about this driver see <file:Documentation/ibm-acpi.txt>
  175. and <http://ibm-acpi.sf.net/> .
  176. If you have an IBM ThinkPad laptop, say Y or M here.
  177. config ACPI_TOSHIBA
  178. tristate "Toshiba Laptop Extras"
  179. depends on X86
  180. default y
  181. ---help---
  182. This driver adds support for access to certain system settings
  183. on "legacy free" Toshiba laptops. These laptops can be recognized by
  184. their lack of a BIOS setup menu and APM support.
  185. On these machines, all system configuration is handled through the
  186. ACPI. This driver is required for access to controls not covered
  187. by the general ACPI drivers, such as LCD brightness, video output,
  188. etc.
  189. This driver differs from the non-ACPI Toshiba laptop driver (located
  190. under "Processor type and features") in several aspects.
  191. Configuration is accessed by reading and writing text files in the
  192. /proc tree instead of by program interface to /dev. Furthermore, no
  193. power management functions are exposed, as those are handled by the
  194. general ACPI drivers.
  195. More information about this driver is available at
  196. <http://memebeam.org/toys/ToshibaAcpiDriver>.
  197. If you have a legacy free Toshiba laptop (such as the Libretto L1
  198. series), say Y.
  199. config ACPI_CUSTOM_DSDT
  200. bool "Include Custom DSDT"
  201. depends on !STANDALONE
  202. default n
  203. help
  204. Thist option is to load a custom ACPI DSDT
  205. If you don't know what that is, say N.
  206. config ACPI_CUSTOM_DSDT_FILE
  207. string "Custom DSDT Table file to include"
  208. depends on ACPI_CUSTOM_DSDT
  209. default ""
  210. help
  211. Enter the full path name to the file wich includes the AmlCode declaration.
  212. config ACPI_BLACKLIST_YEAR
  213. int "Disable ACPI for systems before Jan 1st this year"
  214. depends on X86
  215. default 0
  216. help
  217. enter a 4-digit year, eg. 2001 to disable ACPI by default
  218. on platforms with DMI BIOS date before January 1st that year.
  219. "acpi=force" can be used to override this mechanism.
  220. Enter 0 to disable this mechanism and allow ACPI to
  221. run by default no matter what the year. (default)
  222. config ACPI_DEBUG
  223. bool "Debug Statements"
  224. default n
  225. help
  226. The ACPI driver can optionally report errors with a great deal
  227. of verbosity. Saying Y enables these statements. This will increase
  228. your kernel size by around 50K.
  229. config ACPI_EC
  230. bool
  231. depends on X86
  232. default y
  233. help
  234. This driver is required on some systems for the proper operation of
  235. the battery and thermal drivers. If you are compiling for a
  236. mobile system, say Y.
  237. config ACPI_POWER
  238. bool
  239. default y
  240. config ACPI_PCI
  241. bool
  242. default PCI
  243. config ACPI_SYSTEM
  244. bool
  245. default y
  246. help
  247. This driver will enable your system to shut down using ACPI, and
  248. dump your ACPI DSDT table using /proc/acpi/dsdt.
  249. config X86_PM_TIMER
  250. bool "Power Management Timer Support"
  251. depends on X86
  252. depends on !X86_64
  253. default y
  254. help
  255. The Power Management Timer is available on all ACPI-capable,
  256. in most cases even if ACPI is unusable or blacklisted.
  257. This timing source is not affected by powermanagement features
  258. like aggressive processor idling, throttling, frequency and/or
  259. voltage scaling, unlike the commonly used Time Stamp Counter
  260. (TSC) timing source.
  261. So, if you see messages like 'Losing too many ticks!' in the
  262. kernel logs, and/or you are using this on a notebook which
  263. does not yet have an HPET, you should say "Y" here.
  264. config ACPI_CONTAINER
  265. tristate "ACPI0004,PNP0A05 and PNP0A06 Container Driver (EXPERIMENTAL)"
  266. depends on EXPERIMENTAL
  267. default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO)
  268. ---help---
  269. This allows _physical_ insertion and removal of CPUs and memory.
  270. This can be useful, for example, on NUMA machines that support
  271. ACPI based physical hotplug of nodes, or non-NUMA machines that
  272. support physical cpu/memory hot-plug.
  273. If one selects "m", this driver can be loaded with
  274. "modprobe acpi_container".
  275. config ACPI_HOTPLUG_MEMORY
  276. tristate "Memory Hotplug"
  277. depends on ACPI
  278. depends on MEMORY_HOTPLUG
  279. default n
  280. help
  281. This driver adds supports for ACPI Memory Hotplug. This driver
  282. provides support for fielding notifications on ACPI memory
  283. devices (PNP0C80) which represent memory ranges that may be
  284. onlined or offlined during runtime.
  285. Enabling this driver assumes that your platform hardware
  286. and firmware have support for hot-plugging physical memory. If
  287. your system does not support physically adding or ripping out
  288. memory DIMMs at some platfrom defined granularity (individually
  289. or as a bank) at runtime, then you need not enable this driver.
  290. If one selects "m," this driver can be loaded using the following
  291. command:
  292. $>modprobe acpi_memhotplug
  293. endif # ACPI
  294. endmenu