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