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#
# ACPI Configuration
#

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menuconfig ACPI
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	bool "ACPI (Advanced Configuration and Power Interface) Support"
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	depends on !IA64_HP_SIM
	depends on IA64 || X86
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	depends on PCI
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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
	  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 
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	  are configured, ACPI is used.
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	  The project home page for the Linux ACPI subsystem is here:
	  <http://www.lesswatts.org/projects/acpi/>
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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 on the
	  ACPI CA, see:
	  <http://acpica.org/>
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	  ACPI is an open industry specification co-developed by
	  Hewlett-Packard, Intel, Microsoft, Phoenix, and Toshiba.
	  The specification is available at:
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	  <http://www.acpi.info>

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if ACPI

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config ACPI_SLEEP
	bool
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	depends on SUSPEND || HIBERNATION
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	default y

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config ACPI_PROCFS
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	bool "Deprecated /proc/acpi files"
	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.

	  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/
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config ACPI_PROCFS_POWER
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	bool "Deprecated power /proc/acpi directories"
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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 power /proc/acpi/ directories to exist, even when
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          they have been replaced by functions in /sys.
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          The deprecated directories (and their replacements) include:
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	  /proc/acpi/battery/* (/sys/class/power_supply/*)
	  /proc/acpi/ac_adapter/* (sys/class/power_supply/*)
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	  This option has no effect on /proc/acpi/ directories
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	  and functions, which do not yet exist in /sys
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	  This option, together with the proc directories, will be
	  deleted in 2.6.39.
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	  Say N to delete power /proc/acpi/ directories that have moved to /sys/

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config ACPI_EC_DEBUGFS
	tristate "EC read/write access through /sys/kernel/debug/ec"
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	default n
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	help
	  Say N to disable Embedded Controller /sys/kernel/debug interface

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	  Be aware that using this interface can confuse your Embedded
	  Controller in a way that a normal reboot is not enough. You then
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	  have to power off your system, and remove the laptop battery for
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	  some seconds.
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	  An Embedded Controller typically is available on laptops and reads
	  sensor values like battery state and temperature.
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	  The kernel accesses the EC through ACPI parsed code provided by BIOS
	  tables. This option allows to access the EC directly without ACPI
	  code being involved.
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	  Thus this option is a debug option that helps to write ACPI drivers
	  and can be used to identify ACPI code or EC firmware bugs.

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config ACPI_PROC_EVENT
	bool "Deprecated /proc/acpi/event support"
	depends on PROC_FS
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	default y
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	help
	  A user-space daemon, acpid, typically reads /proc/acpi/event
	  and handles all ACPI-generated events.
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	  These events are now delivered to user-space either
	  via 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
	  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
	  user-space is newer than kernel 2.6.23 (September 2007).

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config ACPI_AC
	tristate "AC Adapter"
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	depends on X86
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	select POWER_SUPPLY
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	default y
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	help
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	  This driver supports the AC Adapter object, which indicates
	  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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	  To compile this driver as a module, choose M here:
	  the module will be called ac.

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

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	  To compile this driver as a module, choose M here:
	  the module will be called battery.

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config ACPI_BUTTON
	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
	  such as shutting down the system.  This is necessary for
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	  software-controlled poweroff.

	  To compile this driver as a module, choose M here:
	  the module will be called button.
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config ACPI_VIDEO
	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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	select THERMAL
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	help
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	  This driver implements 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.  This supports basic operations
	  such as defining the video POST device, retrieving EDID information,
	  and setting up a video output.

	  To compile this driver as a module, choose M here:
	  the module will be called video.
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config ACPI_FAN
	tristate "Fan"
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	select THERMAL
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	default y
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	help
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	  This driver supports ACPI fan devices, allowing user-mode
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	  applications to perform basic fan control (on, off, status).

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	  To compile this driver as a module, choose M here:
	  the module will be called fan.

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config ACPI_DOCK
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	bool "Dock"
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	depends on EXPERIMENTAL
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	help
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	  This driver supports ACPI-controlled docking stations and removable
	  drive bays such as the IBM Ultrabay and the Dell Module Bay.
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config ACPI_PROCESSOR
	tristate "Processor"
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	select THERMAL
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	select CPU_IDLE
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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
	  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.

	  To compile this driver as a module, choose M here:
	  the module will be called processor.
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config ACPI_IPMI
	tristate "IPMI"
	depends on EXPERIMENTAL && IPMI_SI && IPMI_HANDLER
	default n
	help
	  This driver enables the ACPI to access the BMC controller. And it
	  uses the IPMI request/response message to communicate with BMC
	  controller, which can be found on on the server.

	  To compile this driver as a module, choose M here:
	  the module will be called as acpi_ipmi.
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config ACPI_HOTPLUG_CPU
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	bool
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	depends on EXPERIMENTAL && ACPI_PROCESSOR && HOTPLUG_CPU
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	select ACPI_CONTAINER
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	default y
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config ACPI_PROCESSOR_AGGREGATOR
	tristate "Processor Aggregator"
	depends on ACPI_PROCESSOR
	depends on EXPERIMENTAL
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	depends on X86
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	help
	  ACPI 4.0 defines processor Aggregator, which enables OS to perform
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	  specific processor configuration and control that applies to all
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	  processors in the platform. Currently only logical processor idling
	  is defined, which is to reduce power consumption. This driver
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	  supports the new device.
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config ACPI_THERMAL
	tristate "Thermal Zone"
	depends on ACPI_PROCESSOR
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	select THERMAL
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	default y
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	help
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	  This driver supports ACPI thermal zones.  Most mobile and
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	  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.

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	  To compile this driver as a module, choose M here:
	  the module will be called thermal.

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config ACPI_NUMA
	bool "NUMA support"
	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_CUSTOM_DSDT_FILE
	string "Custom DSDT Table file to include"
	default ""
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	depends on !STANDALONE
	help
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	  This option supports a custom DSDT by linking it into the kernel.
	  See Documentation/acpi/dsdt-override.txt

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	  Enter the full path name to the file which includes the AmlCode
	  declaration.
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	  If unsure, don't enter a file name.

config ACPI_CUSTOM_DSDT
	bool
	default ACPI_CUSTOM_DSDT_FILE != ""

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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
	help
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	  Enter a 4-digit year, e.g., 2001, to disable ACPI by default
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	  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
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	  The ACPI subsystem can produce debug output.  Saying Y enables this
	  output and increases the kernel size by around 50K.

	  Use the acpi.debug_layer and acpi.debug_level kernel command-line
	  parameters documented in Documentation/acpi/debug.txt and
	  Documentation/kernel-parameters.txt to control the type and
	  amount of debug output.
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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.

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config ACPI_PCI_SLOT
	tristate "PCI slot detection driver"
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	depends on SYSFS
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	default n
	help
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	  This driver creates entries in /sys/bus/pci/slots/ for all PCI
	  slots in the system.  This can help correlate PCI bus addresses,
	  i.e., segment/bus/device/function tuples, with physical slots in
	  the system.  If you are unsure, say N.

	  To compile this driver as a module, choose M here:
	  the module will be called pci_slot.
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config X86_PM_TIMER
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	bool "Power Management Timer Support" if EXPERT
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	depends on X86
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	default y
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	help
	  The Power Management Timer is available on all ACPI-capable,
	  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
	  voltage scaling, unlike the commonly used Time Stamp Counter
	  (TSC) timing source.

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	  You should nearly always say Y here because many modern
	  systems require this timer. 
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config ACPI_CONTAINER
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	tristate "Container and Module Devices (EXPERIMENTAL)"
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	depends on EXPERIMENTAL
	default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO)
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	help
	  This driver supports ACPI Container and Module devices (IDs
	  ACPI0004, PNP0A05, and PNP0A06).
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	  This helps support hotplug of nodes, CPUs, and memory.

	  To compile this driver as a module, choose M here:
	  the module will be called container.
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config ACPI_HOTPLUG_MEMORY
	tristate "Memory Hotplug"
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	depends on MEMORY_HOTPLUG
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	default n
	help
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	  This driver supports ACPI memory hotplug.  The driver
	  fields notifications on ACPI memory devices (PNP0C80),
	  which represent memory ranges that may be onlined or
	  offlined during runtime.
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	  If your hardware and firmware do not support adding or
	  removing memory devices at runtime, you need not enable
	  this driver.
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	  To compile this driver as a module, choose M here:
	  the module will be called 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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	select POWER_SUPPLY
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	help
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	  This driver supports the Smart Battery System, another
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	  type of access to battery information, found on some laptops.
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	  To compile this driver as a module, choose M here:
	  the modules will be called sbs and sbshc.

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config ACPI_HED
	tristate "Hardware Error Device"
	help
	  This driver supports the Hardware Error Device (PNP0C33),
	  which is used to report some hardware errors notified via
	  SCI, mainly the corrected errors.

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config ACPI_CUSTOM_METHOD
	tristate "Allow ACPI methods to be inserted/replaced at run time"
	depends on DEBUG_FS
	default n
	help
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	  This debug facility allows ACPI AML methods to be inserted and/or
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	  replaced without rebooting the system. For details refer to:
	  Documentation/acpi/method-customizing.txt.

	  NOTE: This option is security sensitive, because it allows arbitrary
	  kernel memory to be written to by root (uid=0) users, allowing them
	  to bypass certain security measures (e.g. if root is not allowed to
	  load additional kernel modules after boot, this feature may be used
	  to override that restriction).

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config ACPI_BGRT
        tristate "Boottime Graphics Resource Table support"
        default n
        help
	  This driver adds support for exposing the ACPI Boottime Graphics
	  Resource Table, which allows the operating system to obtain
	  data from the firmware boot splash. It will appear under
	  /sys/firmware/acpi/bgrt/ .

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source "drivers/acpi/apei/Kconfig"

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endif	# ACPI