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 they have been replaced by functions in /sys.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 they have been replaced by functions in /sys.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