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1 62 marcus.erl
#
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# ACPI Configuration
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#
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menuconfig ACPI
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        bool "ACPI (Advanced Configuration and Power Interface) Support"
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        depends on !X86_NUMAQ
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        depends on !X86_VISWS
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        depends on !IA64_HP_SIM
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        depends on IA64 || X86
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        depends on PCI
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        depends on PM
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        select PNP
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        default y
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        ---help---
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          Advanced Configuration and Power Interface (ACPI) support for
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          Linux requires an ACPI compliant platform (hardware/firmware),
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          and assumes the presence of OS-directed configuration and power
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          management (OSPM) software.  This option will enlarge your
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          kernel by about 70K.
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          Linux ACPI provides a robust functional replacement for several
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          legacy configuration and power management interfaces, including
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          the Plug-and-Play BIOS specification (PnP BIOS), the
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          MultiProcessor Specification (MPS), and the Advanced Power
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          Management (APM) specification.  If both ACPI and APM support
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          are configured, whichever is loaded first shall be used.
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          The ACPI SourceForge project contains the latest source code,
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          documentation, tools, mailing list subscription, and other
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          information.  This project is available at:
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          Linux support for ACPI is based on Intel Corporation's ACPI
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          Component Architecture (ACPI CA).  For more information see:
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          ACPI is an open industry specification co-developed by Compaq,
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          Intel, Microsoft, Phoenix, and Toshiba.  The specification is
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          available at:
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if ACPI
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config ACPI_SLEEP
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        bool
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        depends on PM_SLEEP
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        default y
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config ACPI_PROCFS
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        bool "Deprecated /proc/acpi files"
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        depends on PROC_FS
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        ---help---
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          For backwards compatibility, this option allows
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          deprecated /proc/acpi/ files to exist, even when
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          they have been replaced by functions in /sys.
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          The deprecated files (and their replacements) include:
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          /proc/acpi/sleep (/sys/power/state)
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          /proc/acpi/info (/sys/modules/acpi/parameters/acpica_version)
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          /proc/acpi/dsdt (/sys/firmware/acpi/tables/DSDT)
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          /proc/acpi/fadt (/sys/firmware/acpi/tables/FACP)
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          /proc/acpi/debug_layer (/sys/module/acpi/parameters/debug_layer)
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          /proc/acpi/debug_level (/sys/module/acpi/parameters/debug_level)
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          This option has no effect on /proc/acpi/ files
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          and functions which do not yet exist in /sys.
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          Say N to delete /proc/acpi/ files that have moved to /sys/
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config ACPI_PROCFS_POWER
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        bool "Deprecated power /proc/acpi folders"
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        depends on PROC_FS
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        default y
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        ---help---
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          For backwards compatibility, this option allows
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          deprecated power /proc/acpi/ folders to exist, even when
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          they have been replaced by functions in /sys.
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          The deprecated folders (and their replacements) include:
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          /proc/acpi/battery/* (/sys/class/power_supply/*)
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          /proc/acpi/ac_adapter/* (sys/class/power_supply/*)
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          This option has no effect on /proc/acpi/ folders
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          and functions, which do not yet exist in /sys
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          Say N to delete power /proc/acpi/ folders that have moved to /sys/
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config ACPI_SYSFS_POWER
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        bool "Future power /sys interface"
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        select POWER_SUPPLY
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        default y
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        ---help---
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          Say N to disable power /sys interface
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config ACPI_PROC_EVENT
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        bool "Deprecated /proc/acpi/event support"
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        depends on PROC_FS
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        default y
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        ---help---
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          A user-space daemon, acpi, typically read /proc/acpi/event
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          and handled all ACPI sub-system generated events.
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          These events are now delivered to user-space via
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          either the input layer, or as netlink events.
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          This build option enables the old code for legacy
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          user-space implementation.  After some time, this will
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          be moved under CONFIG_ACPI_PROCFS, and then deleted.
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          Say Y here to retain the old behaviour.  Say N if your
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          user-space is newer than kernel 2.6.23 (September 2007).
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config ACPI_AC
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        tristate "AC Adapter"
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        depends on X86
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        default y
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        help
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          This driver adds support for the AC Adapter object, which indicates
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          whether a system is on AC, or not. If you have a system that can
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          switch between A/C and battery, say Y.
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config ACPI_BATTERY
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        tristate "Battery"
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        depends on X86
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        default y
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        help
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          This driver adds support for battery information through
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          /proc/acpi/battery. If you have a mobile system with a battery,
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          say Y.
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config ACPI_BUTTON
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        tristate "Button"
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        depends on INPUT
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        default y
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        help
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          This driver handles events on the power, sleep and lid buttons.
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          A daemon reads /proc/acpi/event and perform user-defined actions
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          such as shutting down the system.  This is necessary for
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          software controlled poweroff.
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config ACPI_VIDEO
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        tristate "Video"
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        depends on X86 && BACKLIGHT_CLASS_DEVICE && VIDEO_OUTPUT_CONTROL
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        depends on INPUT
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        help
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          This driver implement the ACPI Extensions For Display Adapters
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          for integrated graphics devices on motherboard, as specified in
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          ACPI 2.0 Specification, Appendix B, allowing to perform some basic
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          control like defining the video POST device, retrieving EDID information
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          or to setup a video output, etc.
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          Note that this is an ref. implementation only.  It may or may not work
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          for your integrated video device.
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config ACPI_FAN
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        tristate "Fan"
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        default y
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        help
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          This driver adds support for ACPI fan devices, allowing user-mode
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          applications to perform basic fan control (on, off, status).
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config ACPI_DOCK
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        tristate "Dock"
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        depends on EXPERIMENTAL
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        help
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          This driver adds support for ACPI controlled docking stations
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config ACPI_BAY
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        tristate "Removable Drive Bay (EXPERIMENTAL)"
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        depends on EXPERIMENTAL
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        depends on ACPI_DOCK
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        help
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          This driver adds support for ACPI controlled removable drive
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          bays such as the IBM ultrabay or the Dell Module Bay.
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config ACPI_PROCESSOR
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        tristate "Processor"
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        default y
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        help
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          This driver installs ACPI as the idle handler for Linux, and uses
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          ACPI C2 and C3 processor states to save power, on systems that
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          support it.  It is required by several flavors of cpufreq
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          Performance-state drivers.
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config ACPI_HOTPLUG_CPU
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        bool
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        depends on ACPI_PROCESSOR && HOTPLUG_CPU
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        select ACPI_CONTAINER
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        default y
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config ACPI_THERMAL
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        tristate "Thermal Zone"
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        depends on ACPI_PROCESSOR
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        default y
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        help
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          This driver adds support for ACPI thermal zones.  Most mobile and
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          some desktop systems support ACPI thermal zones.  It is HIGHLY
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          recommended that this option be enabled, as your processor(s)
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          may be damaged without it.
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config ACPI_NUMA
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        bool "NUMA support"
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        depends on NUMA
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        depends on (X86 || IA64)
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        default y if IA64_GENERIC || IA64_SGI_SN2
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config ACPI_ASUS
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        tristate "ASUS/Medion Laptop Extras"
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        depends on X86
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        select BACKLIGHT_CLASS_DEVICE
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        ---help---
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          This driver provides support for extra features of ACPI-compatible
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          ASUS laptops. As some of Medion laptops are made by ASUS, it may also
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          support some Medion laptops (such as 9675 for example).  It makes all
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          the extra buttons generate standard ACPI events that go through
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          /proc/acpi/events, and (on some models) adds support for changing the
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          display brightness and output, switching the LCD backlight on and off,
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          and most importantly, allows you to blink those fancy LEDs intended
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          for reporting mail and wireless status.
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          Note: display switching code is currently considered EXPERIMENTAL,
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          toying with these values may even lock your machine.
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          All settings are changed via /proc/acpi/asus directory entries. Owner
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          and group for these entries can be set with asus_uid and asus_gid
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          parameters.
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          More information and a userspace daemon for handling the extra buttons
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          at .
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          If you have an ACPI-compatible ASUS laptop, say Y or M here. This
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          driver is still under development, so if your laptop is unsupported or
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          something works not quite as expected, please use the mailing list
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          available on the above page (acpi4asus-user@lists.sourceforge.net).
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          NOTE: This driver is deprecated and will probably be removed soon,
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          use asus-laptop instead.
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config ACPI_TOSHIBA
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        tristate "Toshiba Laptop Extras"
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        depends on X86
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        select BACKLIGHT_CLASS_DEVICE
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        ---help---
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          This driver adds support for access to certain system settings
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          on "legacy free" Toshiba laptops.  These laptops can be recognized by
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          their lack of a BIOS setup menu and APM support.
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          On these machines, all system configuration is handled through the
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          ACPI.  This driver is required for access to controls not covered
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          by the general ACPI drivers, such as LCD brightness, video output,
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          etc.
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          This driver differs from the non-ACPI Toshiba laptop driver (located
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          under "Processor type and features") in several aspects.
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          Configuration is accessed by reading and writing text files in the
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          /proc tree instead of by program interface to /dev.  Furthermore, no
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          power management functions are exposed, as those are handled by the
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          general ACPI drivers.
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          More information about this driver is available at
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          .
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          If you have a legacy free Toshiba laptop (such as the Libretto L1
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          series), say Y.
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config ACPI_CUSTOM_DSDT
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        bool "Include Custom DSDT"
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        depends on !STANDALONE
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        default n
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        help
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          This option is to load a custom ACPI DSDT
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          If you don't know what that is, say N.
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config ACPI_CUSTOM_DSDT_FILE
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        string "Custom DSDT Table file to include"
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        depends on ACPI_CUSTOM_DSDT
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        default ""
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        help
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          Enter the full path name to the file which includes the AmlCode
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          declaration.
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config ACPI_BLACKLIST_YEAR
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        int "Disable ACPI for systems before Jan 1st this year" if X86_32
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        default 0
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        help
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          enter a 4-digit year, eg. 2001 to disable ACPI by default
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          on platforms with DMI BIOS date before January 1st that year.
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          "acpi=force" can be used to override this mechanism.
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          Enter 0 to disable this mechanism and allow ACPI to
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          run by default no matter what the year.  (default)
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config ACPI_DEBUG
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        bool "Debug Statements"
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        default n
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        help
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          The ACPI driver can optionally report errors with a great deal
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          of verbosity. Saying Y enables these statements. This will increase
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          your kernel size by around 50K.
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config ACPI_DEBUG_FUNC_TRACE
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        bool "Additionally enable ACPI function tracing"
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        default n
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        depends on ACPI_DEBUG
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        help
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          ACPI Debug Statements slow down ACPI processing. Function trace
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          is about half of the penalty and is rarely useful.
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config ACPI_EC
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        bool
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        default y
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        help
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          This driver is required on some systems for the proper operation of
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          the battery and thermal drivers.  If you are compiling for a
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          mobile system, say Y.
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config ACPI_POWER
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        bool
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        default y
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config ACPI_SYSTEM
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        bool
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        default y
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        help
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          This driver will enable your system to shut down using ACPI, and
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          dump your ACPI DSDT table using /proc/acpi/dsdt.
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config X86_PM_TIMER
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        bool "Power Management Timer Support" if EMBEDDED
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        depends on X86
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        default y
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        help
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          The Power Management Timer is available on all ACPI-capable,
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          in most cases even if ACPI is unusable or blacklisted.
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          This timing source is not affected by power management features
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          like aggressive processor idling, throttling, frequency and/or
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          voltage scaling, unlike the commonly used Time Stamp Counter
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          (TSC) timing source.
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          You should nearly always say Y here because many modern
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          systems require this timer.
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config ACPI_CONTAINER
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        tristate "ACPI0004,PNP0A05 and PNP0A06 Container Driver (EXPERIMENTAL)"
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        depends on EXPERIMENTAL
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        default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO)
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         ---help---
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          This allows _physical_ insertion and removal of CPUs and memory.
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          This can be useful, for example, on NUMA machines that support
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          ACPI based physical hotplug of nodes, or non-NUMA machines that
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          support physical cpu/memory hot-plug.
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          If one selects "m", this driver can be loaded with
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          "modprobe acpi_container".
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config ACPI_HOTPLUG_MEMORY
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        tristate "Memory Hotplug"
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        depends on MEMORY_HOTPLUG
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        default n
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        help
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          This driver adds supports for ACPI Memory Hotplug.  This driver
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          provides support for fielding notifications on ACPI memory
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          devices (PNP0C80) which represent memory ranges that may be
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          onlined or offlined during runtime.
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          Enabling this driver assumes that your platform hardware
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          and firmware have support for hot-plugging physical memory. If
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          your system does not support physically adding or ripping out
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          memory DIMMs at some platform defined granularity (individually
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          or as a bank) at runtime, then you need not enable this driver.
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          If one selects "m," this driver can be loaded using the following
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          command:
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                $>modprobe acpi_memhotplug
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config ACPI_SBS
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        tristate "Smart Battery System"
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        depends on X86
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        help
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          This driver adds support for the Smart Battery System, another
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          type of access to battery information, found on some laptops.
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endif   # ACPI

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