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#
# ACPI Configuration
#

menuconfig ACPI
        bool "ACPI (Advanced Configuration and Power Interface) Support"
        depends on !X86_NUMAQ
        depends on !X86_VISWS
        depends on !IA64_HP_SIM
        depends on IA64 || X86
        depends on PCI
        depends on PM
        select PNP
        default y
        ---help---
          Advanced Configuration and Power Interface (ACPI) support for 
          Linux requires an ACPI compliant platform (hardware/firmware),
          and assumes the presence of OS-directed configuration and power
          management (OSPM) software.  This option will enlarge your 
          kernel by about 70K.

          Linux ACPI provides a robust functional replacement for several 
          legacy configuration and power management interfaces, including
          the Plug-and-Play BIOS specification (PnP BIOS), the 
          MultiProcessor Specification (MPS), and the Advanced Power 
          Management (APM) specification.  If both ACPI and APM support 
          are configured, whichever is loaded first shall be used.

          The ACPI SourceForge project contains the latest source code, 
          documentation, tools, mailing list subscription, and other 
          information.  This project is available at:
          <http://sourceforge.net/projects/acpi>

          Linux support for ACPI is based on Intel Corporation's ACPI
          Component Architecture (ACPI CA).  For more information see:
          <http://developer.intel.com/technology/iapc/acpi>

          ACPI is an open industry specification co-developed by Compaq, 
          Intel, Microsoft, Phoenix, and Toshiba.  The specification is 
          available at:
          <http://www.acpi.info>

if ACPI

config ACPI_SLEEP
        bool
        depends on PM_SLEEP
        default y

config ACPI_PROCFS
        bool "Deprecated /proc/acpi files"
        depends on PROC_FS
        ---help---
          For backwards compatibility, this option allows
          deprecated /proc/acpi/ files to exist, even when
          they have been replaced by functions in /sys.
          The deprecated files (and their replacements) include:

          /proc/acpi/sleep (/sys/power/state)
          /proc/acpi/info (/sys/modules/acpi/parameters/acpica_version)
          /proc/acpi/dsdt (/sys/firmware/acpi/tables/DSDT)
          /proc/acpi/fadt (/sys/firmware/acpi/tables/FACP)
          /proc/acpi/debug_layer (/sys/module/acpi/parameters/debug_layer)
          /proc/acpi/debug_level (/sys/module/acpi/parameters/debug_level)

          This option has no effect on /proc/acpi/ files
          and functions which do not yet exist in /sys.

          Say N to delete /proc/acpi/ files that have moved to /sys/
config ACPI_PROCFS_POWER
        bool "Deprecated power /proc/acpi folders"
        depends on PROC_FS
        default y
        ---help---
          For backwards compatibility, this option allows
          deprecated power /proc/acpi/ folders to exist, even when
          they have been replaced by functions in /sys.
          The deprecated folders (and their replacements) include:
          /proc/acpi/battery/* (/sys/class/power_supply/*)
          /proc/acpi/ac_adapter/* (sys/class/power_supply/*)
          This option has no effect on /proc/acpi/ folders
          and functions, which do not yet exist in /sys

          Say N to delete power /proc/acpi/ folders that have moved to /sys/
config ACPI_SYSFS_POWER
        bool "Future power /sys interface"
        select POWER_SUPPLY
        default y
        ---help---
          Say N to disable power /sys interface
config ACPI_PROC_EVENT
        bool "Deprecated /proc/acpi/event support"
        depends on PROC_FS
        default y
        ---help---
          A user-space daemon, acpi, typically read /proc/acpi/event
          and handled all ACPI sub-system generated events.

          These events are now delivered to user-space via
          either the input layer, or as netlink events.

          This build option enables the old code for legacy
          user-space implementation.  After some time, this will
          be moved under CONFIG_ACPI_PROCFS, and then deleted.

          Say Y here to retain the old behaviour.  Say N if your
          user-space is newer than kernel 2.6.23 (September 2007).

config ACPI_AC
        tristate "AC Adapter"
        depends on X86
        default y
        help
          This driver adds support for the AC Adapter object, which indicates
          whether a system is on AC, or not. If you have a system that can
          switch between A/C and battery, say Y.

config ACPI_BATTERY
        tristate "Battery"
        depends on X86
        default y
        help
          This driver adds support for battery information through
          /proc/acpi/battery. If you have a mobile system with a battery, 
          say Y.

config ACPI_BUTTON
        tristate "Button"
        depends on INPUT
        default y
        help
          This driver handles events on the power, sleep and lid buttons.
          A daemon reads /proc/acpi/event and perform user-defined actions
          such as shutting down the system.  This is necessary for
          software controlled poweroff.

config ACPI_VIDEO
        tristate "Video"
        depends on X86 && BACKLIGHT_CLASS_DEVICE && VIDEO_OUTPUT_CONTROL
        depends on INPUT
        help
          This driver implement the ACPI Extensions For Display Adapters
          for integrated graphics devices on motherboard, as specified in
          ACPI 2.0 Specification, Appendix B, allowing to perform some basic
          control like defining the video POST device, retrieving EDID information
          or to setup a video output, etc.
          Note that this is an ref. implementation only.  It may or may not work
          for your integrated video device.

config ACPI_FAN
        tristate "Fan"
        default y
        help
          This driver adds support for ACPI fan devices, allowing user-mode 
          applications to perform basic fan control (on, off, status).

config ACPI_DOCK
        tristate "Dock"
        depends on EXPERIMENTAL
        help
          This driver adds support for ACPI controlled docking stations

config ACPI_BAY
        tristate "Removable Drive Bay (EXPERIMENTAL)"
        depends on EXPERIMENTAL
        depends on ACPI_DOCK
        help
          This driver adds support for ACPI controlled removable drive
          bays such as the IBM ultrabay or the Dell Module Bay.

config ACPI_PROCESSOR
        tristate "Processor"
        default y
        help
          This driver installs ACPI as the idle handler for Linux, and uses
          ACPI C2 and C3 processor states to save power, on systems that
          support it.  It is required by several flavors of cpufreq
          Performance-state drivers.

config ACPI_HOTPLUG_CPU
        bool
        depends on ACPI_PROCESSOR && HOTPLUG_CPU
        select ACPI_CONTAINER
        default y

config ACPI_THERMAL
        tristate "Thermal Zone"
        depends on ACPI_PROCESSOR
        default y
        help
          This driver adds support for ACPI thermal zones.  Most mobile and
          some desktop systems support ACPI thermal zones.  It is HIGHLY
          recommended that this option be enabled, as your processor(s)
          may be damaged without it.

config ACPI_NUMA
        bool "NUMA support"
        depends on NUMA
        depends on (X86 || IA64)
        default y if IA64_GENERIC || IA64_SGI_SN2

config ACPI_ASUS
        tristate "ASUS/Medion Laptop Extras"
        depends on X86
        select BACKLIGHT_CLASS_DEVICE
        ---help---
          This driver provides support for extra features of ACPI-compatible
          ASUS laptops. As some of Medion laptops are made by ASUS, it may also
          support some Medion laptops (such as 9675 for example).  It makes all
          the extra buttons generate standard ACPI events that go through
          /proc/acpi/events, and (on some models) adds support for changing the
          display brightness and output, switching the LCD backlight on and off,
          and most importantly, allows you to blink those fancy LEDs intended
          for reporting mail and wireless status.

          Note: display switching code is currently considered EXPERIMENTAL,
          toying with these values may even lock your machine.

          All settings are changed via /proc/acpi/asus directory entries. Owner
          and group for these entries can be set with asus_uid and asus_gid
          parameters.

          More information and a userspace daemon for handling the extra buttons
          at <http://sourceforge.net/projects/acpi4asus/>.

          If you have an ACPI-compatible ASUS laptop, say Y or M here. This
          driver is still under development, so if your laptop is unsupported or
          something works not quite as expected, please use the mailing list
          available on the above page (acpi4asus-user@lists.sourceforge.net).

          NOTE: This driver is deprecated and will probably be removed soon,
          use asus-laptop instead.

config ACPI_TOSHIBA
        tristate "Toshiba Laptop Extras"
        depends on X86
        select BACKLIGHT_CLASS_DEVICE
        ---help---
          This driver adds support for access to certain system settings
          on "legacy free" Toshiba laptops.  These laptops can be recognized by
          their lack of a BIOS setup menu and APM support.

          On these machines, all system configuration is handled through the
          ACPI.  This driver is required for access to controls not covered
          by the general ACPI drivers, such as LCD brightness, video output,
          etc.

          This driver differs from the non-ACPI Toshiba laptop driver (located
          under "Processor type and features") in several aspects.
          Configuration is accessed by reading and writing text files in the
          /proc tree instead of by program interface to /dev.  Furthermore, no
          power management functions are exposed, as those are handled by the
          general ACPI drivers.

          More information about this driver is available at
          <http://memebeam.org/toys/ToshibaAcpiDriver>.

          If you have a legacy free Toshiba laptop (such as the Libretto L1
          series), say Y.

config ACPI_CUSTOM_DSDT
        bool "Include Custom DSDT"
        depends on !STANDALONE
        default n 
        help
          This option is to load a custom ACPI DSDT
          If you don't know what that is, say N.

config ACPI_CUSTOM_DSDT_FILE
        string "Custom DSDT Table file to include"
        depends on ACPI_CUSTOM_DSDT
        default ""
        help
          Enter the full path name to the file which includes the AmlCode
          declaration.

config ACPI_BLACKLIST_YEAR
        int "Disable ACPI for systems before Jan 1st this year" if X86_32
        default 0
        help
          enter a 4-digit year, eg. 2001 to disable ACPI by default
          on platforms with DMI BIOS date before January 1st that year.
          "acpi=force" can be used to override this mechanism.

          Enter 0 to disable this mechanism and allow ACPI to
          run by default no matter what the year.  (default)

config ACPI_DEBUG
        bool "Debug Statements"
        default n
        help
          The ACPI driver can optionally report errors with a great deal
          of verbosity. Saying Y enables these statements. This will increase
          your kernel size by around 50K.

config ACPI_DEBUG_FUNC_TRACE
        bool "Additionally enable ACPI function tracing"
        default n
        depends on ACPI_DEBUG
        help
          ACPI Debug Statements slow down ACPI processing. Function trace
          is about half of the penalty and is rarely useful.

config ACPI_EC
        bool
        default y
        help
          This driver is required on some systems for the proper operation of
          the battery and thermal drivers.  If you are compiling for a 
          mobile system, say Y.

config ACPI_POWER
        bool
        default y

config ACPI_SYSTEM
        bool
        default y
        help
          This driver will enable your system to shut down using ACPI, and
          dump your ACPI DSDT table using /proc/acpi/dsdt.

config X86_PM_TIMER
        bool "Power Management Timer Support" if EMBEDDED
        depends on X86
        default y
        help
          The Power Management Timer is available on all ACPI-capable,
          in most cases even if ACPI is unusable or blacklisted.

          This timing source is not affected by power management features
          like aggressive processor idling, throttling, frequency and/or
          voltage scaling, unlike the commonly used Time Stamp Counter
          (TSC) timing source.

          You should nearly always say Y here because many modern
          systems require this timer. 

config ACPI_CONTAINER
        tristate "ACPI0004,PNP0A05 and PNP0A06 Container Driver (EXPERIMENTAL)"
        depends on EXPERIMENTAL
        default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO)
         ---help---
          This allows _physical_ insertion and removal of CPUs and memory.
          This can be useful, for example, on NUMA machines that support
          ACPI based physical hotplug of nodes, or non-NUMA machines that
          support physical cpu/memory hot-plug.

          If one selects "m", this driver can be loaded with
          "modprobe acpi_container".

config ACPI_HOTPLUG_MEMORY
        tristate "Memory Hotplug"
        depends on MEMORY_HOTPLUG
        default n
        help
          This driver adds supports for ACPI Memory Hotplug.  This driver
          provides support for fielding notifications on ACPI memory
          devices (PNP0C80) which represent memory ranges that may be
          onlined or offlined during runtime.  

          Enabling this driver assumes that your platform hardware
          and firmware have support for hot-plugging physical memory. If
          your system does not support physically adding or ripping out 
          memory DIMMs at some platform defined granularity (individually 
          or as a bank) at runtime, then you need not enable this driver.

          If one selects "m," this driver can be loaded using the following
          command: 
                $>modprobe acpi_memhotplug 

config ACPI_SBS
        tristate "Smart Battery System"
        depends on X86
        help
          This driver adds support for the Smart Battery System, another
          type of access to battery information, found on some laptops.

endif   # ACPI