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