Kconfig 13 KB

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  1. #
  2. # ACPI Configuration
  3. #
  4. menuconfig ACPI
  5. bool "ACPI (Advanced Configuration and Power Interface) Support"
  6. depends on !X86_NUMAQ
  7. depends on !X86_VISWS
  8. depends on !IA64_HP_SIM
  9. depends on IA64 || X86
  10. depends on PCI
  11. depends on PM
  12. select PNP
  13. default y
  14. ---help---
  15. Advanced Configuration and Power Interface (ACPI) support for
  16. Linux requires an ACPI compliant platform (hardware/firmware),
  17. and assumes the presence of OS-directed configuration and power
  18. management (OSPM) software. This option will enlarge your
  19. kernel by about 70K.
  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. The ACPI SourceForge project contains the latest source code,
  27. documentation, tools, mailing list subscription, and other
  28. information. This project is available at:
  29. <http://sourceforge.net/projects/acpi>
  30. Linux support for ACPI is based on Intel Corporation's ACPI
  31. Component Architecture (ACPI CA). For more information see:
  32. <http://developer.intel.com/technology/iapc/acpi>
  33. ACPI is an open industry specification co-developed by Compaq,
  34. Intel, Microsoft, Phoenix, and Toshiba. The specification is
  35. available at:
  36. <http://www.acpi.info>
  37. if ACPI
  38. config ACPI_SLEEP
  39. bool
  40. depends on PM_SLEEP
  41. default y
  42. config ACPI_PROCFS
  43. bool "Deprecated /proc/acpi files"
  44. depends on PROC_FS
  45. ---help---
  46. For backwards compatibility, this option allows
  47. deprecated /proc/acpi/ files to exist, even when
  48. they have been replaced by functions in /sys.
  49. The deprecated files (and their replacements) include:
  50. /proc/acpi/sleep (/sys/power/state)
  51. /proc/acpi/info (/sys/modules/acpi/parameters/acpica_version)
  52. /proc/acpi/dsdt (/sys/firmware/acpi/tables/DSDT)
  53. /proc/acpi/fadt (/sys/firmware/acpi/tables/FACP)
  54. /proc/acpi/debug_layer (/sys/module/acpi/parameters/debug_layer)
  55. /proc/acpi/debug_level (/sys/module/acpi/parameters/debug_level)
  56. This option has no effect on /proc/acpi/ files
  57. and functions which do not yet exist in /sys.
  58. Say N to delete /proc/acpi/ files that have moved to /sys/
  59. config ACPI_PROCFS_POWER
  60. bool "Deprecated power /proc/acpi folders"
  61. depends on PROC_FS
  62. default y
  63. ---help---
  64. For backwards compatibility, this option allows
  65. deprecated power /proc/acpi/ folders to exist, even when
  66. they have been replaced by functions in /sys.
  67. The deprecated folders (and their replacements) include:
  68. /proc/acpi/battery/* (/sys/class/power_supply/*)
  69. /proc/acpi/ac_adapter/* (sys/class/power_supply/*)
  70. This option has no effect on /proc/acpi/ folders
  71. and functions, which do not yet exist in /sys
  72. Say N to delete power /proc/acpi/ folders that have moved to /sys/
  73. config ACPI_SYSFS_POWER
  74. bool "Future power /sys interface"
  75. select POWER_SUPPLY
  76. default y
  77. ---help---
  78. Say N to disable power /sys interface
  79. config ACPI_PROC_EVENT
  80. bool "Deprecated /proc/acpi/event support"
  81. depends on PROC_FS
  82. default y
  83. ---help---
  84. A user-space daemon, acpi, typically read /proc/acpi/event
  85. and handled all ACPI sub-system generated events.
  86. These events are now delivered to user-space via
  87. either the input layer, or as netlink events.
  88. This build option enables the old code for legacy
  89. user-space implementation. After some time, this will
  90. be moved under CONFIG_ACPI_PROCFS, and then deleted.
  91. Say Y here to retain the old behaviour. Say N if your
  92. user-space is newer than kernel 2.6.23 (September 2007).
  93. config ACPI_AC
  94. tristate "AC Adapter"
  95. depends on X86
  96. default y
  97. help
  98. This driver adds support for the AC Adapter object, which indicates
  99. whether a system is on AC, or not. If you have a system that can
  100. switch between A/C and battery, say Y.
  101. config ACPI_BATTERY
  102. tristate "Battery"
  103. depends on X86
  104. default y
  105. help
  106. This driver adds support for battery information through
  107. /proc/acpi/battery. If you have a mobile system with a battery,
  108. say Y.
  109. config ACPI_BUTTON
  110. tristate "Button"
  111. depends on INPUT
  112. default y
  113. help
  114. This driver handles events on the power, sleep and lid buttons.
  115. A daemon reads /proc/acpi/event and perform user-defined actions
  116. such as shutting down the system. This is necessary for
  117. software controlled poweroff.
  118. config ACPI_VIDEO
  119. tristate "Video"
  120. depends on X86 && BACKLIGHT_CLASS_DEVICE && VIDEO_OUTPUT_CONTROL
  121. depends on INPUT
  122. help
  123. This driver implement the ACPI Extensions For Display Adapters
  124. for integrated graphics devices on motherboard, as specified in
  125. ACPI 2.0 Specification, Appendix B, allowing to perform some basic
  126. control like defining the video POST device, retrieving EDID information
  127. or to setup a video output, etc.
  128. Note that this is an ref. implementation only. It may or may not work
  129. for your integrated video device.
  130. config ACPI_FAN
  131. tristate "Fan"
  132. default y
  133. help
  134. This driver adds support for ACPI fan devices, allowing user-mode
  135. applications to perform basic fan control (on, off, status).
  136. config ACPI_DOCK
  137. tristate "Dock"
  138. depends on EXPERIMENTAL
  139. help
  140. This driver adds support for ACPI controlled docking stations
  141. config ACPI_BAY
  142. tristate "Removable Drive Bay (EXPERIMENTAL)"
  143. depends on EXPERIMENTAL
  144. depends on ACPI_DOCK
  145. help
  146. This driver adds support for ACPI controlled removable drive
  147. bays such as the IBM ultrabay or the Dell Module Bay.
  148. config ACPI_PROCESSOR
  149. tristate "Processor"
  150. default y
  151. help
  152. This driver installs ACPI as the idle handler for Linux, and uses
  153. ACPI C2 and C3 processor states to save power, on systems that
  154. support it. It is required by several flavors of cpufreq
  155. Performance-state drivers.
  156. config ACPI_HOTPLUG_CPU
  157. bool
  158. depends on ACPI_PROCESSOR && HOTPLUG_CPU
  159. select ACPI_CONTAINER
  160. default y
  161. config ACPI_THERMAL
  162. tristate "Thermal Zone"
  163. depends on ACPI_PROCESSOR
  164. default y
  165. help
  166. This driver adds support for ACPI thermal zones. Most mobile and
  167. some desktop systems support ACPI thermal zones. It is HIGHLY
  168. recommended that this option be enabled, as your processor(s)
  169. may be damaged without it.
  170. config ACPI_NUMA
  171. bool "NUMA support"
  172. depends on NUMA
  173. depends on (X86 || IA64)
  174. default y if IA64_GENERIC || IA64_SGI_SN2
  175. config ACPI_WMI
  176. tristate "WMI (EXPERIMENTAL)"
  177. depends on EXPERIMENTAL
  178. help
  179. This driver adds support for the ACPI-WMI mapper device (PNP0C14)
  180. found on some systems.
  181. NOTE: You will need another driver or userspace application on top of
  182. this to actually use anything defined in the ACPI-WMI mapper.
  183. config ACPI_ASUS
  184. tristate "ASUS/Medion Laptop Extras"
  185. depends on X86
  186. select BACKLIGHT_CLASS_DEVICE
  187. ---help---
  188. This driver provides support for extra features of ACPI-compatible
  189. ASUS laptops. As some of Medion laptops are made by ASUS, it may also
  190. support some Medion laptops (such as 9675 for example). It makes all
  191. the extra buttons generate standard ACPI events that go through
  192. /proc/acpi/events, and (on some models) adds support for changing the
  193. display brightness and output, switching the LCD backlight on and off,
  194. and most importantly, allows you to blink those fancy LEDs intended
  195. for reporting mail and wireless status.
  196. Note: display switching code is currently considered EXPERIMENTAL,
  197. toying with these values may even lock your machine.
  198. All settings are changed via /proc/acpi/asus directory entries. Owner
  199. and group for these entries can be set with asus_uid and asus_gid
  200. parameters.
  201. More information and a userspace daemon for handling the extra buttons
  202. at <http://sourceforge.net/projects/acpi4asus/>.
  203. If you have an ACPI-compatible ASUS laptop, say Y or M here. This
  204. driver is still under development, so if your laptop is unsupported or
  205. something works not quite as expected, please use the mailing list
  206. available on the above page (acpi4asus-user@lists.sourceforge.net).
  207. NOTE: This driver is deprecated and will probably be removed soon,
  208. use asus-laptop instead.
  209. config ACPI_TOSHIBA
  210. tristate "Toshiba Laptop Extras"
  211. depends on X86
  212. select BACKLIGHT_CLASS_DEVICE
  213. ---help---
  214. This driver adds support for access to certain system settings
  215. on "legacy free" Toshiba laptops. These laptops can be recognized by
  216. their lack of a BIOS setup menu and APM support.
  217. On these machines, all system configuration is handled through the
  218. ACPI. This driver is required for access to controls not covered
  219. by the general ACPI drivers, such as LCD brightness, video output,
  220. etc.
  221. This driver differs from the non-ACPI Toshiba laptop driver (located
  222. under "Processor type and features") in several aspects.
  223. Configuration is accessed by reading and writing text files in the
  224. /proc tree instead of by program interface to /dev. Furthermore, no
  225. power management functions are exposed, as those are handled by the
  226. general ACPI drivers.
  227. More information about this driver is available at
  228. <http://memebeam.org/toys/ToshibaAcpiDriver>.
  229. If you have a legacy free Toshiba laptop (such as the Libretto L1
  230. series), say Y.
  231. config ACPI_CUSTOM_DSDT
  232. bool "Include Custom DSDT"
  233. depends on !STANDALONE
  234. default n
  235. help
  236. This option is to load a custom ACPI DSDT
  237. If you don't know what that is, say N.
  238. config ACPI_CUSTOM_DSDT_FILE
  239. string "Custom DSDT Table file to include"
  240. depends on ACPI_CUSTOM_DSDT
  241. default ""
  242. help
  243. Enter the full path name to the file which includes the AmlCode
  244. declaration.
  245. config ACPI_BLACKLIST_YEAR
  246. int "Disable ACPI for systems before Jan 1st this year" if X86_32
  247. default 0
  248. help
  249. enter a 4-digit year, eg. 2001 to disable ACPI by default
  250. on platforms with DMI BIOS date before January 1st that year.
  251. "acpi=force" can be used to override this mechanism.
  252. Enter 0 to disable this mechanism and allow ACPI to
  253. run by default no matter what the year. (default)
  254. config ACPI_DEBUG
  255. bool "Debug Statements"
  256. default n
  257. help
  258. The ACPI driver can optionally report errors with a great deal
  259. of verbosity. Saying Y enables these statements. This will increase
  260. your kernel size by around 50K.
  261. config ACPI_DEBUG_FUNC_TRACE
  262. bool "Additionally enable ACPI function tracing"
  263. default n
  264. depends on ACPI_DEBUG
  265. help
  266. ACPI Debug Statements slow down ACPI processing. Function trace
  267. is about half of the penalty and is rarely useful.
  268. config ACPI_EC
  269. bool
  270. default y
  271. help
  272. This driver is required on some systems for the proper operation of
  273. the battery and thermal drivers. If you are compiling for a
  274. mobile system, say Y.
  275. config ACPI_POWER
  276. bool
  277. default y
  278. config ACPI_SYSTEM
  279. bool
  280. default y
  281. help
  282. This driver will enable your system to shut down using ACPI, and
  283. dump your ACPI DSDT table using /proc/acpi/dsdt.
  284. config X86_PM_TIMER
  285. bool "Power Management Timer Support" if EMBEDDED
  286. depends on X86
  287. default y
  288. help
  289. The Power Management Timer is available on all ACPI-capable,
  290. in most cases even if ACPI is unusable or blacklisted.
  291. This timing source is not affected by power management features
  292. like aggressive processor idling, throttling, frequency and/or
  293. voltage scaling, unlike the commonly used Time Stamp Counter
  294. (TSC) timing source.
  295. You should nearly always say Y here because many modern
  296. systems require this timer.
  297. config ACPI_CONTAINER
  298. tristate "ACPI0004,PNP0A05 and PNP0A06 Container Driver (EXPERIMENTAL)"
  299. depends on EXPERIMENTAL
  300. default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO)
  301. ---help---
  302. This allows _physical_ insertion and removal of CPUs and memory.
  303. This can be useful, for example, on NUMA machines that support
  304. ACPI based physical hotplug of nodes, or non-NUMA machines that
  305. support physical cpu/memory hot-plug.
  306. If one selects "m", this driver can be loaded with
  307. "modprobe acpi_container".
  308. config ACPI_HOTPLUG_MEMORY
  309. tristate "Memory Hotplug"
  310. depends on MEMORY_HOTPLUG
  311. default n
  312. help
  313. This driver adds supports for ACPI Memory Hotplug. This driver
  314. provides support for fielding notifications on ACPI memory
  315. devices (PNP0C80) which represent memory ranges that may be
  316. onlined or offlined during runtime.
  317. Enabling this driver assumes that your platform hardware
  318. and firmware have support for hot-plugging physical memory. If
  319. your system does not support physically adding or ripping out
  320. memory DIMMs at some platform defined granularity (individually
  321. or as a bank) at runtime, then you need not enable this driver.
  322. If one selects "m," this driver can be loaded using the following
  323. command:
  324. $>modprobe acpi_memhotplug
  325. config ACPI_SBS
  326. tristate "Smart Battery System"
  327. depends on X86
  328. help
  329. This driver adds support for the Smart Battery System, another
  330. type of access to battery information, found on some laptops.
  331. endif # ACPI