drivers/acpi/Kconfig

   1 #
   2 # ACPI Configuration
   3 #
   4
   5 menu "ACPI (Advanced Configuration and Power Interface) Support"
   6         depends on !X86_VISWS
   7         depends on !IA64_HP_SIM
   8         depends on IA64 || X86
   9
  10 config ACPI
  11         bool "ACPI Support"
  12         depends on IA64 || X86
  13
  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 config ACPI_BOOT
  44         bool
  45         depends on ACPI || X86_HT
  46         default y
  47
  48 if ACPI
  49
  50 config ACPI_INTERPRETER
  51         bool
  52         depends on !IA64_SGI_SN
  53         default y
  54
  55 if ACPI_INTERPRETER
  56
  57 config ACPI_SLEEP
  58         bool "Sleep States (EXPERIMENTAL)"
  59         depends on X86
  60         depends on EXPERIMENTAL && PM
  61         default y
  62         ---help---
  63           This option adds support for ACPI suspend states.
  64
  65           With this option, you will be able to put the system "to sleep".
  66           Sleep states are low power states for the system and devices. All
  67           of the system operating state is saved to either memory or disk
  68           (depending on the state), to allow the system to resume operation
  69           quickly at your request.
  70
  71           Although this option sounds really nifty, barely any of the device
  72           drivers have been converted to the new driver model and hence few
  73           have proper power management support.
  74
  75           This option is not recommended for anyone except those doing driver
  76           power management development.
  77
  78 config ACPI_SLEEP_PROC_FS
  79         bool
  80         depends on ACPI_SLEEP && PROC_FS
  81         default y
  82
  83 config ACPI_AC
  84         tristate "AC Adapter"
  85         depends on X86
  86         default m
  87         help
  88           This driver adds support for the AC Adapter object, which indicates
  89           whether a system is on AC, or not.  Typically, only mobile systems
  90           have this object, since desktops are always on AC.
  91
  92 config ACPI_BATTERY
  93         tristate "Battery"
  94         depends on X86
  95         default m
  96         help
  97           This driver adds support for battery information through
  98           /proc/acpi/battery. If you have a mobile system with a battery,
  99           say Y.
 100
 101 config ACPI_BUTTON
 102         tristate "Button"
 103         depends on !IA64_SGI_SN
 104         default m
 105         help
 106           This driver registers for events based on buttons, such as the
 107           power, sleep, and lid switch.  In the future, a daemon will read
 108           /proc/acpi/event and perform user-defined actions such as shutting
 109           down the system.  Until then, you can cat it, and see output when
 110           a button is pressed.
 111
 112 config ACPI_VIDEO
 113         tristate "Video"
 114         depends on EXPERIMENTAL
 115         depends on !IA64_SGI_SN
 116         default m
 117         help
 118           This driver implement the ACPI Extensions For Display Adapters
 119           for integrated graphics devices on motherboard, as specified in
 120           ACPI 2.0 Specification, Appendix B, allowing to perform some basic
 121           control like defining the video POST device, retrieving EDID information
 122           or to setup a video output, etc.
 123           Note that this is an ref. implementation only.  It may or may not work
 124           for your integrated video device.
 125
 126 config ACPI_FAN
 127         tristate "Fan"
 128         depends on !IA64_SGI_SN
 129         default m
 130         help
 131           This driver adds support for ACPI fan devices, allowing user-mode
 132           applications to perform basic fan control (on, off, status).
 133
 134 config ACPI_PROCESSOR
 135         tristate "Processor"
 136         depends on !IA64_SGI_SN
 137         default m
 138         help
 139           This driver installs ACPI as the idle handler for Linux, and uses
 140           ACPI C2 and C3 processor states to save power, on systems that
 141           support it.
 142
 143 config ACPI_HOTPLUG_CPU
 144         bool "Processor Hotplug (EXPERIMENTAL)"
 145         depends on ACPI_PROCESSOR && HOTPLUG_CPU && EXPERIMENTAL
 146         depends on !IA64_SGI_SN
 147         select ACPI_CONTAINER
 148         default n
 149          ---help---
 150          Select this option if your platform support physical CPU hotplug.
 151
 152 config ACPI_THERMAL
 153         tristate "Thermal Zone"
 154         depends on ACPI_PROCESSOR
 155         default m
 156         help
 157           This driver adds support for ACPI thermal zones.  Most mobile and
 158           some desktop systems support ACPI thermal zones.  It is HIGHLY
 159           recommended that this option be enabled, as your processor(s)
 160           may be damaged without it.
 161
 162 config ACPI_NUMA
 163         bool "NUMA support"
 164         depends on NUMA
 165         depends on (IA64 || X86_64)
 166         default y if IA64_GENERIC || IA64_SGI_SN2
 167
 168 config ACPI_ASUS
 169         tristate "ASUS/Medion Laptop Extras"
 170         depends on X86
 171         default m
 172         ---help---
 173           This driver provides support for extra features of ACPI-compatible
 174           ASUS laptops. As some of Medion laptops are made by ASUS, it may also
 175           support some Medion laptops (such as 9675 for example).  It makes all
 176           the extra buttons generate standard ACPI events that go through
 177           /proc/acpi/events, and (on some models) adds support for changing the
 178           display brightness and output, switching the LCD backlight on and off,
 179           and most importantly, allows you to blink those fancy LEDs intended
 180           for reporting mail and wireless status.
 181
 182           Note: display switching code is currently considered EXPERIMENTAL,
 183           toying with these values may even lock your machine.
 184
 185           All settings are changed via /proc/acpi/asus directory entries. Owner
 186           and group for these entries can be set with asus_uid and asus_gid
 187           parameters.
 188
 189           More information and a userspace daemon for handling the extra buttons
 190           at <http://sourceforge.net/projects/acpi4asus/>.
 191
 192           If you have an ACPI-compatible ASUS laptop, say Y or M here. This
 193           driver is still under development, so if your laptop is unsupported or
 194           something works not quite as expected, please use the mailing list
 195           available on the above page (acpi4asus-user@lists.sourceforge.net)
 196
 197 config ACPI_IBM
 198         tristate "IBM ThinkPad Laptop Extras"
 199         depends on X86
 200         default m
 201         ---help---
 202           This is a Linux ACPI driver for the IBM ThinkPad laptops. It adds
 203           support for Fn-Fx key combinations, Bluetooth control, video
 204           output switching, ThinkLight control, UltraBay eject and more.
 205           For more information about this driver see <file:Documentation/ibm-acpi.txt>
 206           and <http://ibm-acpi.sf.net/> .
 207
 208           If you have an IBM ThinkPad laptop, say Y or M here.
 209
 210 config ACPI_TOSHIBA
 211         tristate "Toshiba Laptop Extras"
 212         depends on X86
 213         default m
 214         ---help---
 215           This driver adds support for access to certain system settings
 216           on "legacy free" Toshiba laptops.  These laptops can be recognized by
 217           their lack of a BIOS setup menu and APM support.
 218
 219           On these machines, all system configuration is handled through the
 220           ACPI.  This driver is required for access to controls not covered
 221           by the general ACPI drivers, such as LCD brightness, video output,
 222           etc.
 223
 224           This driver differs from the non-ACPI Toshiba laptop driver (located
 225           under "Processor type and features") in several aspects.
 226           Configuration is accessed by reading and writing text files in the
 227           /proc tree instead of by program interface to /dev.  Furthermore, no
 228           power management functions are exposed, as those are handled by the
 229           general ACPI drivers.
 230
 231           More information about this driver is available at
 232           <http://memebeam.org/toys/ToshibaAcpiDriver>.
 233
 234           If you have a legacy free Toshiba laptop (such as the Libretto L1
 235           series), say Y.
 236
 237 config ACPI_CUSTOM_DSDT
 238         bool "Include Custom DSDT"
 239         depends on !STANDALONE
 240         default n
 241         help
 242           Thist option is to load a custom ACPI DSDT
 243           If you don't know what that is, say N.
 244
 245 config ACPI_CUSTOM_DSDT_FILE
 246         string "Custom DSDT Table file to include"
 247         depends on ACPI_CUSTOM_DSDT
 248         default ""
 249         help
 250           Enter the full path name to the file wich includes the AmlCode declaration.
 251
 252 config ACPI_BLACKLIST_YEAR
 253         int "Disable ACPI for systems before Jan 1st this year"
 254         depends on ACPI_INTERPRETER
 255         default 0
 256         help
 257           enter a 4-digit year, eg. 2001 to disable ACPI by default
 258           on platforms with DMI BIOS date before January 1st that year.
 259           "acpi=force" can be used to override this mechanism.
 260
 261           Enter 0 to disable this mechanism and allow ACPI to
 262           run by default no matter what the year.  (default)
 263
 264 config ACPI_DEBUG
 265         bool "Debug Statements"
 266         depends on !IA64_SGI_SN
 267         default n
 268         help
 269           The ACPI driver can optionally report errors with a great deal
 270           of verbosity. Saying Y enables these statements. This will increase
 271           your kernel size by around 50K.
 272
 273 config ACPI_BUS
 274         bool
 275         depends on !IA64_SGI_SN
 276         default y
 277
 278 config ACPI_EC
 279         bool
 280         depends on X86
 281         default y
 282         help
 283           This driver is required on some systems for the proper operation of
 284           the battery and thermal drivers.  If you are compiling for a
 285           mobile system, say Y.
 286
 287 config ACPI_POWER
 288         bool
 289         depends on !IA64_SGI_SN
 290         default y
 291
 292 config ACPI_PCI
 293         bool
 294         depends on !IA64_SGI_SN
 295         default PCI
 296
 297 config ACPI_SYSTEM
 298         bool
 299         depends on !IA64_SGI_SN
 300         default y
 301         help
 302           This driver will enable your system to shut down using ACPI, and
 303           dump your ACPI DSDT table using /proc/acpi/dsdt.
 304
 305 endif   # ACPI_INTERPRETER
 306
 307 config X86_PM_TIMER
 308         bool "Power Management Timer Support"
 309         depends on X86
 310         depends on ACPI_BOOT && EXPERIMENTAL
 311         depends on !X86_64
 312         default n
 313         help
 314           The Power Management Timer is available on all ACPI-capable,
 315           in most cases even if ACPI is unusable or blacklisted.
 316
 317           This timing source is not affected by powermanagement features
 318           like aggressive processor idling, throttling, frequency and/or
 319           voltage scaling, unlike the commonly used Time Stamp Counter
 320           (TSC) timing source.
 321
 322           So, if you see messages like 'Losing too many ticks!' in the
 323           kernel logs, and/or you are using this on a notebook which
 324           does not yet have an HPET, you should say "Y" here.
 325
 326 config ACPI_CONTAINER
 327         tristate "ACPI0004,PNP0A05 and PNP0A06 Container Driver (EXPERIMENTAL)"
 328         depends on EXPERIMENTAL
 329         default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO)
 330          ---help---
 331                 This is the ACPI generic container driver which supports
 332                 ACPI0004, PNP0A05 and PNP0A06 devices
 333
 334 config ACPI_HOTPLUG_MEMORY
 335         tristate "Memory Hotplug"
 336         depends on ACPI
 337         depends on MEMORY_HOTPLUG
 338         default n
 339         help
 340           This driver adds supports for ACPI Memory Hotplug.  This driver
 341           provides support for fielding notifications on ACPI memory
 342           devices (PNP0C80) which represent memory ranges that may be
 343           onlined or offlined during runtime.
 344
 345           Enabling this driver assumes that your platform hardware
 346           and firmware have support for hot-plugging physical memory. If
 347           your system does not support physically adding or ripping out
 348           memory DIMMs at some platfrom defined granularity (individually
 349           or as a bank) at runtime, then you need not enable this driver.
 350
 351           If one selects "m," this driver can be loaded using the following
 352           command:
 353                 $>modprobe acpi_memhotplug
 354 endif   # ACPI
 355
 356 endmenu