Kconfig 12 KB

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 they have been replaced by functions in /sys.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