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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+ they have been replaced by functions in /sys.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 directories"
+ depends on PROC_FS
+ default y
+ ---help---
+ For backwards compatibility, this option allows
+ deprecated power /proc/acpi/ directories to exist, even when
+ they have been replaced by functions in /sys.
+ The deprecated directories (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/ directories
+ and functions, which do not yet exist in /sys
+
+ Say N to delete power /proc/acpi/ directories 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
+ select THERMAL
+ 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_WMI
+ tristate "WMI (EXPERIMENTAL)"
+ depends on X86
+ depends on EXPERIMENTAL
+ help
+ This driver adds support for the ACPI-WMI (Windows Management
+ Instrumentation) mapper device (PNP0C14) found on some systems.
+
+ ACPI-WMI is a proprietary extension to ACPI to expose parts of the
+ ACPI firmware to userspace - this is done through various vendor
+ defined methods and data blocks in a PNP0C14 device, which are then
+ made available for userspace to call.
+
+ The implementation of this in Linux currently only exposes this to
+ other kernel space drivers.
+
+ This driver is a required dependency to build the firmware specific
+ drivers needed on many machines, including Acer and HP laptops.
+
+ It is safe to enable this driver even if your DSDT doesn't define
+ any ACPI-WMI devices.
+
+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_FILE
+ string "Custom DSDT Table file to include"
+ default ""
+ depends on !STANDALONE
+ help
+ This option supports a custom DSDT by linking it into the kernel.
+ See Documentation/acpi/dsdt-override.txt
+
+ Enter the full path name to the file which includes the AmlCode
+ declaration.
+
+ If unsure, don't enter a file name.
+
+config ACPI_CUSTOM_DSDT
+ bool
+ default ACPI_CUSTOM_DSDT_FILE != ""
+
+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