drivers/acpi/Kconfig

   1 #
   2 # ACPI Configuration
   3 #
   4
   5 menuconfig ACPI
   6         bool "ACPI Support (Advanced Configuration and Power Interface) Support"
   7         depends on !X86_NUMAQ
   8         depends on !X86_VISWS
   9         depends on !IA64_HP_SIM
  10         depends on IA64 || X86
  11         depends on PCI
  12         depends on PM
  13         select PNP
  14         default y
  15         ---help---
  16           Advanced Configuration and Power Interface (ACPI) support for
  17           Linux requires an ACPI compliant platform (hardware/firmware),
  18           and assumes the presence of OS-directed configuration and power
  19           management (OSPM) software.  This option will enlarge your
  20           kernel by about 70K.
  21
  22           Linux ACPI provides a robust functional replacement for several
  23           legacy configuration and power management interfaces, including
  24           the Plug-and-Play BIOS specification (PnP BIOS), the
  25           MultiProcessor Specification (MPS), and the Advanced Power
  26           Management (APM) specification.  If both ACPI and APM support
  27           are configured, whichever is loaded first shall be used.
  28
  29           The ACPI SourceForge project contains the latest source code,
  30           documentation, tools, mailing list subscription, and other
  31           information.  This project is available at:
  32           <http://sourceforge.net/projects/acpi>
  33
  34           Linux support for ACPI is based on Intel Corporation's ACPI
  35           Component Architecture (ACPI CA).  For more information see:
  36           <http://developer.intel.com/technology/iapc/acpi>
  37
  38           ACPI is an open industry specification co-developed by Compaq,
  39           Intel, Microsoft, Phoenix, and Toshiba.  The specification is
  40           available at:
  41           <http://www.acpi.info>
  42
  43 if ACPI
  44
  45 config ACPI_SLEEP
  46         bool
  47         depends on PM_SLEEP
  48         default y
  49
  50 config ACPI_PROCFS
  51         bool "Deprecated /proc/acpi files"
  52         depends on PROC_FS
  53         ---help---
  54           For backwards compatibility, this option allows
  55           depricated /proc/acpi/ files to exist, even when
  56           they have been replaced by functions in /sys.
  57           The deprecated files (and their replacements) include:
  58
  59           /proc/acpi/sleep (/sys/power/state)
  60           /proc/acpi/info (/sys/modules/acpi/parameters/acpica_version)
  61           /proc/acpi/dsdt (/sys/firmware/acpi/tables/DSDT)
  62           /proc/acpi/fadt (/sys/firmware/acpi/tables/FACP)
  63           /proc/acpi/debug_layer (/sys/module/acpi/parameters/debug_layer)
  64           /proc/acpi/debug_level (/sys/module/acpi/parameters/debug_level)
  65
  66           This option has no effect on /proc/acpi/ files
  67           and functions which do not yet exist in /sys.
  68
  69           Say N to delete /proc/acpi/ files that have moved to /sys/
  70
  71 config ACPI_AC
  72         tristate "AC Adapter"
  73         depends on X86
  74         default y
  75         help
  76           This driver adds support for the AC Adapter object, which indicates
  77           whether a system is on AC, or not. If you have a system that can
  78           switch between A/C and battery, say Y.
  79
  80 config ACPI_BATTERY
  81         tristate "Battery"
  82         depends on X86
  83         default y
  84         help
  85           This driver adds support for battery information through
  86           /proc/acpi/battery. If you have a mobile system with a battery,
  87           say Y.
  88
  89 config ACPI_BUTTON
  90         tristate "Button"
  91         depends on INPUT
  92         default y
  93         help
  94           This driver handles events on the power, sleep and lid buttons.
  95           A daemon reads /proc/acpi/event and perform user-defined actions
  96           such as shutting down the system.  This is necessary for
  97           software controlled poweroff.
  98
  99 config ACPI_VIDEO
 100         tristate "Video"
 101         depends on X86 && BACKLIGHT_CLASS_DEVICE && VIDEO_OUTPUT_CONTROL
 102         help
 103           This driver implement the ACPI Extensions For Display Adapters
 104           for integrated graphics devices on motherboard, as specified in
 105           ACPI 2.0 Specification, Appendix B, allowing to perform some basic
 106           control like defining the video POST device, retrieving EDID information
 107           or to setup a video output, etc.
 108           Note that this is an ref. implementation only.  It may or may not work
 109           for your integrated video device.
 110
 111 config ACPI_FAN
 112         tristate "Fan"
 113         default y
 114         help
 115           This driver adds support for ACPI fan devices, allowing user-mode
 116           applications to perform basic fan control (on, off, status).
 117
 118 config ACPI_DOCK
 119         tristate "Dock"
 120         depends on EXPERIMENTAL
 121         help
 122           This driver adds support for ACPI controlled docking stations
 123
 124 config ACPI_BAY
 125         tristate "Removable Drive Bay (EXPERIMENTAL)"
 126         depends on EXPERIMENTAL
 127         depends on ACPI_DOCK
 128         help
 129           This driver adds support for ACPI controlled removable drive
 130           bays such as the IBM ultrabay or the Dell Module Bay.
 131
 132 config ACPI_PROCESSOR
 133         tristate "Processor"
 134         default y
 135         help
 136           This driver installs ACPI as the idle handler for Linux, and uses
 137           ACPI C2 and C3 processor states to save power, on systems that
 138           support it.  It is required by several flavors of cpufreq
 139           Performance-state drivers.
 140
 141 config ACPI_HOTPLUG_CPU
 142         bool
 143         depends on ACPI_PROCESSOR && HOTPLUG_CPU
 144         select ACPI_CONTAINER
 145         default y
 146
 147 config ACPI_THERMAL
 148         tristate "Thermal Zone"
 149         depends on ACPI_PROCESSOR
 150         default y
 151         help
 152           This driver adds support for ACPI thermal zones.  Most mobile and
 153           some desktop systems support ACPI thermal zones.  It is HIGHLY
 154           recommended that this option be enabled, as your processor(s)
 155           may be damaged without it.
 156
 157 config ACPI_NUMA
 158         bool "NUMA support"
 159         depends on NUMA
 160         depends on (X86 || IA64)
 161         default y if IA64_GENERIC || IA64_SGI_SN2
 162
 163 config ACPI_ASUS
 164         tristate "ASUS/Medion Laptop Extras"
 165         depends on X86
 166         select BACKLIGHT_CLASS_DEVICE
 167         ---help---
 168           This driver provides support for extra features of ACPI-compatible
 169           ASUS laptops. As some of Medion laptops are made by ASUS, it may also
 170           support some Medion laptops (such as 9675 for example).  It makes all
 171           the extra buttons generate standard ACPI events that go through
 172           /proc/acpi/events, and (on some models) adds support for changing the
 173           display brightness and output, switching the LCD backlight on and off,
 174           and most importantly, allows you to blink those fancy LEDs intended
 175           for reporting mail and wireless status.
 176
 177           Note: display switching code is currently considered EXPERIMENTAL,
 178           toying with these values may even lock your machine.
 179
 180           All settings are changed via /proc/acpi/asus directory entries. Owner
 181           and group for these entries can be set with asus_uid and asus_gid
 182           parameters.
 183
 184           More information and a userspace daemon for handling the extra buttons
 185           at <http://sourceforge.net/projects/acpi4asus/>.
 186
 187           If you have an ACPI-compatible ASUS laptop, say Y or M here. This
 188           driver is still under development, so if your laptop is unsupported or
 189           something works not quite as expected, please use the mailing list
 190           available on the above page (acpi4asus-user@lists.sourceforge.net).
 191
 192           NOTE: This driver is deprecated and will probably be removed soon,
 193           use asus-laptop instead.
 194
 195 config ACPI_TOSHIBA
 196         tristate "Toshiba Laptop Extras"
 197         depends on X86
 198         select BACKLIGHT_CLASS_DEVICE
 199         ---help---
 200           This driver adds support for access to certain system settings
 201           on "legacy free" Toshiba laptops.  These laptops can be recognized by
 202           their lack of a BIOS setup menu and APM support.
 203
 204           On these machines, all system configuration is handled through the
 205           ACPI.  This driver is required for access to controls not covered
 206           by the general ACPI drivers, such as LCD brightness, video output,
 207           etc.
 208
 209           This driver differs from the non-ACPI Toshiba laptop driver (located
 210           under "Processor type and features") in several aspects.
 211           Configuration is accessed by reading and writing text files in the
 212           /proc tree instead of by program interface to /dev.  Furthermore, no
 213           power management functions are exposed, as those are handled by the
 214           general ACPI drivers.
 215
 216           More information about this driver is available at
 217           <http://memebeam.org/toys/ToshibaAcpiDriver>.
 218
 219           If you have a legacy free Toshiba laptop (such as the Libretto L1
 220           series), say Y.
 221
 222 config ACPI_CUSTOM_DSDT
 223         bool "Include Custom DSDT"
 224         depends on !STANDALONE
 225         default n
 226         help
 227           This option is to load a custom ACPI DSDT
 228           If you don't know what that is, say N.
 229
 230 config ACPI_CUSTOM_DSDT_FILE
 231         string "Custom DSDT Table file to include"
 232         depends on ACPI_CUSTOM_DSDT
 233         default ""
 234         help
 235           Enter the full path name to the file which includes the AmlCode
 236           declaration.
 237
 238 config ACPI_BLACKLIST_YEAR
 239         int "Disable ACPI for systems before Jan 1st this year" if X86_32
 240         default 0
 241         help
 242           enter a 4-digit year, eg. 2001 to disable ACPI by default
 243           on platforms with DMI BIOS date before January 1st that year.
 244           "acpi=force" can be used to override this mechanism.
 245
 246           Enter 0 to disable this mechanism and allow ACPI to
 247           run by default no matter what the year.  (default)
 248
 249 config ACPI_DEBUG
 250         bool "Debug Statements"
 251         default n
 252         help
 253           The ACPI driver can optionally report errors with a great deal
 254           of verbosity. Saying Y enables these statements. This will increase
 255           your kernel size by around 50K.
 256
 257 config ACPI_DEBUG_FUNC_TRACE
 258         bool "Additionally enable ACPI function tracing"
 259         default n
 260         depends on ACPI_DEBUG
 261         help
 262           ACPI Debug Statements slow down ACPI processing. Function trace
 263           is about half of the penalty and is rarely useful.
 264
 265 config ACPI_EC
 266         bool
 267         default y
 268         help
 269           This driver is required on some systems for the proper operation of
 270           the battery and thermal drivers.  If you are compiling for a
 271           mobile system, say Y.
 272
 273 config ACPI_POWER
 274         bool
 275         default y
 276
 277 config ACPI_SYSTEM
 278         bool
 279         default y
 280         help
 281           This driver will enable your system to shut down using ACPI, and
 282           dump your ACPI DSDT table using /proc/acpi/dsdt.
 283
 284 config X86_PM_TIMER
 285         bool "Power Management Timer Support" if EMBEDDED
 286         depends on X86
 287         default y
 288         help
 289           The Power Management Timer is available on all ACPI-capable,
 290           in most cases even if ACPI is unusable or blacklisted.
 291
 292           This timing source is not affected by power management features
 293           like aggressive processor idling, throttling, frequency and/or
 294           voltage scaling, unlike the commonly used Time Stamp Counter
 295           (TSC) timing source.
 296
 297           You should nearly always say Y here because many modern
 298           systems require this timer.
 299
 300 config ACPI_CONTAINER
 301         tristate "ACPI0004,PNP0A05 and PNP0A06 Container Driver (EXPERIMENTAL)"
 302         depends on EXPERIMENTAL
 303         default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO)
 304          ---help---
 305           This allows _physical_ insertion and removal of CPUs and memory.
 306           This can be useful, for example, on NUMA machines that support
 307           ACPI based physical hotplug of nodes, or non-NUMA machines that
 308           support physical cpu/memory hot-plug.
 309
 310           If one selects "m", this driver can be loaded with
 311           "modprobe acpi_container".
 312
 313 config ACPI_HOTPLUG_MEMORY
 314         tristate "Memory Hotplug"
 315         depends on MEMORY_HOTPLUG
 316         default n
 317         help
 318           This driver adds supports for ACPI Memory Hotplug.  This driver
 319           provides support for fielding notifications on ACPI memory
 320           devices (PNP0C80) which represent memory ranges that may be
 321           onlined or offlined during runtime.
 322
 323           Enabling this driver assumes that your platform hardware
 324           and firmware have support for hot-plugging physical memory. If
 325           your system does not support physically adding or ripping out
 326           memory DIMMs at some platform defined granularity (individually
 327           or as a bank) at runtime, then you need not enable this driver.
 328
 329           If one selects "m," this driver can be loaded using the following
 330           command:
 331                 $>modprobe acpi_memhotplug
 332
 333 config ACPI_SBS
 334         tristate "Smart Battery System (EXPERIMENTAL)"
 335         depends on X86
 336         depends on EXPERIMENTAL
 337         help
 338           This driver adds support for the Smart Battery System.
 339           A "Smart Battery" is quite old and quite rare compared
 340           to today's ACPI "Control Method" battery.
 341
 342 endif   # ACPI