975a8e3ed2
Conflicts: Documentation/feature-removal-schedule.txt include/acpi/acpi_drivers.h Signed-off-by: Len Brown <len.brown@intel.com>
393 lines
13 KiB
Plaintext
393 lines
13 KiB
Plaintext
#
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# ACPI Configuration
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#
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menu "ACPI (Advanced Configuration and Power Interface) Support"
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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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config ACPI
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bool "ACPI Support"
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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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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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<http://sourceforge.net/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 see:
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<http://developer.intel.com/technology/iapc/acpi>
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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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<http://www.acpi.info>
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if ACPI
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config ACPI_SLEEP
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bool "Sleep States"
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depends on X86 && (!SMP || SUSPEND_SMP)
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depends on PM
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default y
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---help---
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This option adds support for ACPI suspend states.
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With this option, you will be able to put the system "to sleep".
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Sleep states are low power states for the system and devices. All
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of the system operating state is saved to either memory or disk
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(depending on the state), to allow the system to resume operation
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quickly at your request.
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Although this option sounds really nifty, barely any of the device
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drivers have been converted to the new driver model and hence few
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have proper power management support.
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This option is not recommended for anyone except those doing driver
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power management development.
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config ACPI_SLEEP_PROC_FS
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bool
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depends on ACPI_SLEEP && PROC_FS
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default y
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config ACPI_SLEEP_PROC_SLEEP
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bool "/proc/acpi/sleep (deprecated)"
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depends on ACPI_SLEEP_PROC_FS
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default n
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---help---
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Create /proc/acpi/sleep
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Deprecated by /sys/power/state
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config ACPI_PROCFS
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bool "Procfs interface (deprecated)"
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depends on ACPI
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default y
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---help---
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Procfs interface for ACPI is made optional for back-compatible.
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As the same functions are duplicated in sysfs interface
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and this proc interface will be removed some time later,
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it's marked as deprecated.
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( /proc/acpi/debug_layer && debug_level are deprecated by
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/sys/module/acpi/parameters/debug_layer && debug_level.
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/proc/acpi/info is deprecated by
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/sys/module/acpi/parameters/acpica_version )
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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
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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_HOTKEY
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tristate "Generic Hotkey (EXPERIMENTAL)"
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depends on EXPERIMENTAL
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depends on X86
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default n
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help
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Experimental consolidated hotkey driver.
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If you are unsure, say N.
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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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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 <http://sourceforge.net/projects/acpi4asus/>.
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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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config ACPI_IBM
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tristate "IBM ThinkPad 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 is a Linux ACPI driver for the IBM ThinkPad laptops. It adds
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support for Fn-Fx key combinations, Bluetooth control, video
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output switching, ThinkLight control, UltraBay eject and more.
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For more information about this driver see <file:Documentation/ibm-acpi.txt>
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and <http://ibm-acpi.sf.net/> .
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If you have an IBM ThinkPad laptop, say Y or M here.
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config ACPI_IBM_DOCK
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bool "Legacy Docking Station Support"
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depends on ACPI_IBM
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depends on ACPI_DOCK=n
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default n
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---help---
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Allows the ibm_acpi driver to handle docking station events.
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This support is obsoleted by CONFIG_HOTPLUG_PCI_ACPI. It will
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allow locking and removing the laptop from the docking station,
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but will not properly connect PCI devices.
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If you are not sure, say N here.
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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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<http://memebeam.org/toys/ToshibaAcpiDriver>.
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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_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 ACPI
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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 (EXPERIMENTAL)"
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depends on X86 && I2C
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depends on EXPERIMENTAL
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help
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This driver adds support for the Smart Battery System.
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Depends on I2C (Device Drivers ---> I2C support)
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A "Smart Battery" is quite old and quite rare compared
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to today's ACPI "Control Method" battery.
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endif # ACPI
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endmenu
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