drivers/acpi/Kconfig

   1 #
   2 # ACPI Configuration
   3 #
   4
   5 menu "ACPI (Advanced Configuration and Power Interface) Support"
   6         depends on !X86_VISWS
   7         depends on !IA64_HP_SIM
   8         depends on IA64 || X86
   9
  10 config ACPI
  11         bool "ACPI Support"
  12         depends on IA64 || X86
  13         depends on PCI
  14         depends on PM
  15         default y
  16         ---help---
  17           Advanced Configuration and Power Interface (ACPI) support for
  18           Linux requires an ACPI compliant platform (hardware/firmware),
  19           and assumes the presence of OS-directed configuration and power
  20           management (OSPM) software.  This option will enlarge your
  21           kernel by about 70K.
  22
  23           Linux ACPI provides a robust functional replacement for several
  24           legacy configuration and power management interfaces, including
  25           the Plug-and-Play BIOS specification (PnP BIOS), the
  26           MultiProcessor Specification (MPS), and the Advanced Power
  27           Management (APM) specification.  If both ACPI and APM support
  28           are configured, whichever is loaded first shall be used.
  29
  30           The ACPI SourceForge project contains the latest source code,
  31           documentation, tools, mailing list subscription, and other
  32           information.  This project is available at:
  33           <http://sourceforge.net/projects/acpi>
  34
  35           Linux support for ACPI is based on Intel Corporation's ACPI
  36           Component Architecture (ACPI CA).  For more information see:
  37           <http://developer.intel.com/technology/iapc/acpi>
  38
  39           ACPI is an open industry specification co-developed by Compaq,
  40           Intel, Microsoft, Phoenix, and Toshiba.  The specification is
  41           available at:
  42           <http://www.acpi.info>
  43
  44 if ACPI
  45
  46 config ACPI_SLEEP
  47         bool "Sleep States"
  48         depends on X86 && (!SMP || SUSPEND_SMP)
  49         depends on PM
  50         default y
  51         ---help---
  52           This option adds support for ACPI suspend states.
  53
  54           With this option, you will be able to put the system "to sleep".
  55           Sleep states are low power states for the system and devices. All
  56           of the system operating state is saved to either memory or disk
  57           (depending on the state), to allow the system to resume operation
  58           quickly at your request.
  59
  60           Although this option sounds really nifty, barely any of the device
  61           drivers have been converted to the new driver model and hence few
  62           have proper power management support.
  63
  64           This option is not recommended for anyone except those doing driver
  65           power management development.
  66
  67 config ACPI_SLEEP_PROC_FS
  68         bool
  69         depends on ACPI_SLEEP && PROC_FS
  70         default y
  71
  72 config ACPI_SLEEP_PROC_SLEEP
  73         bool "/proc/acpi/sleep (deprecated)"
  74         depends on ACPI_SLEEP_PROC_FS
  75         default n
  76         ---help---
  77           Create /proc/acpi/sleep
  78           Deprecated by /sys/power/state
  79
  80 config ACPI_AC
  81         tristate "AC Adapter"
  82         depends on X86
  83         default y
  84         help
  85           This driver adds support for the AC Adapter object, which indicates
  86           whether a system is on AC, or not. If you have a system that can
  87           switch between A/C and battery, say Y.
  88
  89 config ACPI_BATTERY
  90         tristate "Battery"
  91         depends on X86
  92         default y
  93         help
  94           This driver adds support for battery information through
  95           /proc/acpi/battery. If you have a mobile system with a battery,
  96           say Y.
  97
  98 config ACPI_BUTTON
  99         tristate "Button"
 100         depends on INPUT
 101         default y
 102         help
 103           This driver handles events on the power, sleep and lid buttons.
 104           A daemon reads /proc/acpi/event and perform user-defined actions
 105           such as shutting down the system.  This is necessary for
 106           software controlled poweroff.
 107
 108 config ACPI_VIDEO
 109         tristate "Video"
 110         depends on X86
 111         help
 112           This driver implement the ACPI Extensions For Display Adapters
 113           for integrated graphics devices on motherboard, as specified in
 114           ACPI 2.0 Specification, Appendix B, allowing to perform some basic
 115           control like defining the video POST device, retrieving EDID information
 116           or to setup a video output, etc.
 117           Note that this is an ref. implementation only.  It may or may not work
 118           for your integrated video device.
 119
 120 config ACPI_HOTKEY
 121         tristate "Generic Hotkey (EXPERIMENTAL)"
 122         depends on EXPERIMENTAL
 123         depends on X86
 124         default n
 125         help
 126           Experimental consolidated hotkey driver.
 127           If you are unsure, say N.
 128
 129 config ACPI_FAN
 130         tristate "Fan"
 131         default y
 132         help
 133           This driver adds support for ACPI fan devices, allowing user-mode
 134           applications to perform basic fan control (on, off, status).
 135
 136 config ACPI_DOCK
 137         tristate "Dock"
 138         depends on EXPERIMENTAL
 139         help
 140           This driver adds support for ACPI controlled docking stations
 141
 142 config ACPI_PROCESSOR
 143         tristate "Processor"
 144         default y
 145         help
 146           This driver installs ACPI as the idle handler for Linux, and uses
 147           ACPI C2 and C3 processor states to save power, on systems that
 148           support it.  It is required by several flavors of cpufreq
 149           Performance-state drivers.
 150
 151 config ACPI_HOTPLUG_CPU
 152         bool
 153         depends on ACPI_PROCESSOR && HOTPLUG_CPU
 154         select ACPI_CONTAINER
 155         default y
 156
 157 config ACPI_THERMAL
 158         tristate "Thermal Zone"
 159         depends on ACPI_PROCESSOR
 160         default y
 161         help
 162           This driver adds support for ACPI thermal zones.  Most mobile and
 163           some desktop systems support ACPI thermal zones.  It is HIGHLY
 164           recommended that this option be enabled, as your processor(s)
 165           may be damaged without it.
 166
 167 config ACPI_NUMA
 168         bool "NUMA support"
 169         depends on NUMA
 170         depends on (X86 || IA64)
 171         default y if IA64_GENERIC || IA64_SGI_SN2
 172
 173 config ACPI_ASUS
 174         tristate "ASUS/Medion Laptop Extras"
 175         depends on X86
 176         select BACKLIGHT_CLASS_DEVICE
 177         ---help---
 178           This driver provides support for extra features of ACPI-compatible
 179           ASUS laptops. As some of Medion laptops are made by ASUS, it may also
 180           support some Medion laptops (such as 9675 for example).  It makes all
 181           the extra buttons generate standard ACPI events that go through
 182           /proc/acpi/events, and (on some models) adds support for changing the
 183           display brightness and output, switching the LCD backlight on and off,
 184           and most importantly, allows you to blink those fancy LEDs intended
 185           for reporting mail and wireless status.
 186
 187           Note: display switching code is currently considered EXPERIMENTAL,
 188           toying with these values may even lock your machine.
 189
 190           All settings are changed via /proc/acpi/asus directory entries. Owner
 191           and group for these entries can be set with asus_uid and asus_gid
 192           parameters.
 193
 194           More information and a userspace daemon for handling the extra buttons
 195           at <http://sourceforge.net/projects/acpi4asus/>.
 196
 197           If you have an ACPI-compatible ASUS laptop, say Y or M here. This
 198           driver is still under development, so if your laptop is unsupported or
 199           something works not quite as expected, please use the mailing list
 200           available on the above page (acpi4asus-user@lists.sourceforge.net).
 201
 202           NOTE: This driver is deprecated and will probably be removed soon,
 203           use asus-laptop instead.
 204
 205 config ACPI_IBM
 206         tristate "IBM ThinkPad Laptop Extras"
 207         depends on X86
 208         select BACKLIGHT_CLASS_DEVICE
 209         ---help---
 210           This is a Linux ACPI driver for the IBM ThinkPad laptops. It adds
 211           support for Fn-Fx key combinations, Bluetooth control, video
 212           output switching, ThinkLight control, UltraBay eject and more.
 213           For more information about this driver see <file:Documentation/ibm-acpi.txt>
 214           and <http://ibm-acpi.sf.net/> .
 215
 216           If you have an IBM ThinkPad laptop, say Y or M here.
 217
 218 config ACPI_IBM_DOCK
 219         bool "Legacy Docking Station Support"
 220         depends on ACPI_IBM
 221         depends on ACPI_DOCK=n
 222         default n
 223         ---help---
 224           Allows the ibm_acpi driver to handle docking station events.
 225           This support is obsoleted by CONFIG_HOTPLUG_PCI_ACPI.  It will
 226           allow locking and removing the laptop from the docking station,
 227           but will not properly connect PCI devices.
 228
 229           If you are not sure, say N here.
 230
 231 config ACPI_TOSHIBA
 232         tristate "Toshiba Laptop Extras"
 233         depends on X86
 234         select BACKLIGHT_CLASS_DEVICE
 235         ---help---
 236           This driver adds support for access to certain system settings
 237           on "legacy free" Toshiba laptops.  These laptops can be recognized by
 238           their lack of a BIOS setup menu and APM support.
 239
 240           On these machines, all system configuration is handled through the
 241           ACPI.  This driver is required for access to controls not covered
 242           by the general ACPI drivers, such as LCD brightness, video output,
 243           etc.
 244
 245           This driver differs from the non-ACPI Toshiba laptop driver (located
 246           under "Processor type and features") in several aspects.
 247           Configuration is accessed by reading and writing text files in the
 248           /proc tree instead of by program interface to /dev.  Furthermore, no
 249           power management functions are exposed, as those are handled by the
 250           general ACPI drivers.
 251
 252           More information about this driver is available at
 253           <http://memebeam.org/toys/ToshibaAcpiDriver>.
 254
 255           If you have a legacy free Toshiba laptop (such as the Libretto L1
 256           series), say Y.
 257
 258 config ACPI_CUSTOM_DSDT
 259         bool "Include Custom DSDT"
 260         depends on !STANDALONE
 261         default n
 262         help
 263           This option is to load a custom ACPI DSDT
 264           If you don't know what that is, say N.
 265
 266 config ACPI_CUSTOM_DSDT_FILE
 267         string "Custom DSDT Table file to include"
 268         depends on ACPI_CUSTOM_DSDT
 269         default ""
 270         help
 271           Enter the full path name to the file which includes the AmlCode
 272           declaration.
 273
 274 config ACPI_BLACKLIST_YEAR
 275         int "Disable ACPI for systems before Jan 1st this year" if X86_32
 276         default 0
 277         help
 278           enter a 4-digit year, eg. 2001 to disable ACPI by default
 279           on platforms with DMI BIOS date before January 1st that year.
 280           "acpi=force" can be used to override this mechanism.
 281
 282           Enter 0 to disable this mechanism and allow ACPI to
 283           run by default no matter what the year.  (default)
 284
 285 config ACPI_DEBUG
 286         bool "Debug Statements"
 287         default n
 288         help
 289           The ACPI driver can optionally report errors with a great deal
 290           of verbosity. Saying Y enables these statements. This will increase
 291           your kernel size by around 50K.
 292
 293 config ACPI_EC
 294         bool
 295         default y
 296         help
 297           This driver is required on some systems for the proper operation of
 298           the battery and thermal drivers.  If you are compiling for a
 299           mobile system, say Y.
 300
 301 config ACPI_POWER
 302         bool
 303         default y
 304
 305 config ACPI_SYSTEM
 306         bool
 307         default y
 308         help
 309           This driver will enable your system to shut down using ACPI, and
 310           dump your ACPI DSDT table using /proc/acpi/dsdt.
 311
 312 config X86_PM_TIMER
 313         bool "Power Management Timer Support" if EMBEDDED
 314         depends on X86
 315         default y
 316         help
 317           The Power Management Timer is available on all ACPI-capable,
 318           in most cases even if ACPI is unusable or blacklisted.
 319
 320           This timing source is not affected by power management features
 321           like aggressive processor idling, throttling, frequency and/or
 322           voltage scaling, unlike the commonly used Time Stamp Counter
 323           (TSC) timing source.
 324
 325           You should nearly always say Y here because many modern
 326           systems require this timer.
 327
 328 config ACPI_CONTAINER
 329         tristate "ACPI0004,PNP0A05 and PNP0A06 Container Driver (EXPERIMENTAL)"
 330         depends on EXPERIMENTAL
 331         default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO)
 332          ---help---
 333           This allows _physical_ insertion and removal of CPUs and memory.
 334           This can be useful, for example, on NUMA machines that support
 335           ACPI based physical hotplug of nodes, or non-NUMA machines that
 336           support physical cpu/memory hot-plug.
 337
 338           If one selects "m", this driver can be loaded with
 339           "modprobe acpi_container".
 340
 341 config ACPI_HOTPLUG_MEMORY
 342         tristate "Memory Hotplug"
 343         depends on ACPI
 344         depends on MEMORY_HOTPLUG
 345         default n
 346         help
 347           This driver adds supports for ACPI Memory Hotplug.  This driver
 348           provides support for fielding notifications on ACPI memory
 349           devices (PNP0C80) which represent memory ranges that may be
 350           onlined or offlined during runtime.
 351
 352           Enabling this driver assumes that your platform hardware
 353           and firmware have support for hot-plugging physical memory. If
 354           your system does not support physically adding or ripping out
 355           memory DIMMs at some platform defined granularity (individually
 356           or as a bank) at runtime, then you need not enable this driver.
 357
 358           If one selects "m," this driver can be loaded using the following
 359           command:
 360                 $>modprobe acpi_memhotplug
 361
 362 config ACPI_SBS
 363         tristate "Smart Battery System (EXPERIMENTAL)"
 364         depends on X86 && I2C
 365         depends on EXPERIMENTAL
 366         help
 367           This driver adds support for the Smart Battery System.
 368           Depends on I2C (Device Drivers ---> I2C support)
 369           A "Smart Battery" is quite old and quite rare compared
 370           to today's ACPI "Control Method" battery.
 371
 372 endif   # ACPI
 373
 374 endmenu