Kconfig 13.8 KB
Newer Older
Linus Torvalds's avatar
Linus Torvalds committed
1 2 3 4
#
# ACPI Configuration
#

Jan Engelhardt's avatar
Jan Engelhardt committed
5
menuconfig ACPI
6
	bool "ACPI (Advanced Configuration and Power Interface) Support"
Linus Torvalds's avatar
Linus Torvalds committed
7 8
	depends on !IA64_HP_SIM
	depends on IA64 || X86
9
	depends on PCI
10
	depends on PM
11
	select PNP
Linus Torvalds's avatar
Linus Torvalds committed
12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
	default y
	---help---
	  Advanced Configuration and Power Interface (ACPI) support for 
	  Linux requires an ACPI compliant platform (hardware/firmware),
	  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 
	  are configured, whichever is loaded first shall be used.

	  The ACPI SourceForge project contains the latest source code, 
	  documentation, tools, mailing list subscription, and other 
	  information.  This project is available at:
	  <http://sourceforge.net/projects/acpi>

	  Linux support for ACPI is based on Intel Corporation's ACPI
	  Component Architecture (ACPI CA).  For more information see:
	  <http://developer.intel.com/technology/iapc/acpi>

	  ACPI is an open industry specification co-developed by Compaq, 
	  Intel, Microsoft, Phoenix, and Toshiba.  The specification is 
	  available at:
	  <http://www.acpi.info>

Len Brown's avatar
Len Brown committed
41 42
if ACPI

Len Brown's avatar
Len Brown committed
43 44 45 46 47
config ACPI_SLEEP
	bool
	depends on PM_SLEEP
	default y

48
config ACPI_PROCFS
49 50
	bool "Deprecated /proc/acpi files"
	depends on PROC_FS
51
	---help---
52
	  For backwards compatibility, this option allows
53
	  deprecated /proc/acpi/ files to exist, even when
54 55 56
	  they have been replaced by functions in /sys.
	  The deprecated files (and their replacements) include:

57
	  /proc/acpi/sleep (/sys/power/state)
58 59 60 61 62 63 64 65 66 67
	  /proc/acpi/info (/sys/modules/acpi/parameters/acpica_version)
	  /proc/acpi/dsdt (/sys/firmware/acpi/tables/DSDT)
	  /proc/acpi/fadt (/sys/firmware/acpi/tables/FACP)
	  /proc/acpi/debug_layer (/sys/module/acpi/parameters/debug_layer)
	  /proc/acpi/debug_level (/sys/module/acpi/parameters/debug_level)

	  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/
68
config ACPI_PROCFS_POWER
69
	bool "Deprecated power /proc/acpi directories"
70 71 72 73
	depends on PROC_FS
	default y
	---help---
	  For backwards compatibility, this option allows
74
          deprecated power /proc/acpi/ directories to exist, even when
75
          they have been replaced by functions in /sys.
76
          The deprecated directories (and their replacements) include:
77 78
	  /proc/acpi/battery/* (/sys/class/power_supply/*)
	  /proc/acpi/ac_adapter/* (sys/class/power_supply/*)
79
	  This option has no effect on /proc/acpi/ directories
80
	  and functions, which do not yet exist in /sys
81

82 83
	  Say N to delete power /proc/acpi/ directories that have moved to /sys/

84 85 86 87 88 89
config ACPI_SYSFS_POWER
	bool "Future power /sys interface"
	select POWER_SUPPLY
	default y
	---help---
	  Say N to disable power /sys interface
90

91 92 93
config ACPI_PROC_EVENT
	bool "Deprecated /proc/acpi/event support"
	depends on PROC_FS
94
	default y
95 96 97 98 99 100 101
	---help---
	  A user-space daemon, acpi, typically read /proc/acpi/event
	  and handled all ACPI sub-system generated events.

	  These events are now delivered to user-space via
	  either the input layer, or as netlink events.

102
	  This build option enables the old code for legacy
103 104 105
	  user-space implementation.  After some time, this will
	  be moved under CONFIG_ACPI_PROCFS, and then deleted.

106 107 108
	  Say Y here to retain the old behaviour.  Say N if your
	  user-space is newer than kernel 2.6.23 (September 2007).

Linus Torvalds's avatar
Linus Torvalds committed
109 110
config ACPI_AC
	tristate "AC Adapter"
111
	depends on X86
112
	default y
Linus Torvalds's avatar
Linus Torvalds committed
113 114
	help
	  This driver adds support for the AC Adapter object, which indicates
115 116
	  whether a system is on AC, or not. If you have a system that can
	  switch between A/C and battery, say Y.
Linus Torvalds's avatar
Linus Torvalds committed
117 118 119

config ACPI_BATTERY
	tristate "Battery"
120
	depends on X86
121
	default y
Linus Torvalds's avatar
Linus Torvalds committed
122 123 124 125 126 127 128
	help
	  This driver adds support for battery information through
	  /proc/acpi/battery. If you have a mobile system with a battery, 
	  say Y.

config ACPI_BUTTON
	tristate "Button"
129
	depends on INPUT
130
	default y
Linus Torvalds's avatar
Linus Torvalds committed
131
	help
132 133 134 135
	  This driver handles events on the power, sleep and lid buttons.
	  A daemon reads /proc/acpi/event and perform user-defined actions
	  such as shutting down the system.  This is necessary for
	  software controlled poweroff.
Linus Torvalds's avatar
Linus Torvalds committed
136 137 138

config ACPI_VIDEO
	tristate "Video"
139
	depends on X86 && BACKLIGHT_CLASS_DEVICE && VIDEO_OUTPUT_CONTROL
140
	depends on INPUT
141
	select THERMAL
Linus Torvalds's avatar
Linus Torvalds committed
142 143 144 145 146 147 148 149 150 151 152
	help
	  This driver implement the ACPI Extensions For Display Adapters
	  for integrated graphics devices on motherboard, as specified in
	  ACPI 2.0 Specification, Appendix B, allowing to perform some basic
	  control like defining the video POST device, retrieving EDID information
	  or to setup a video output, etc.
	  Note that this is an ref. implementation only.  It may or may not work
	  for your integrated video device.

config ACPI_FAN
	tristate "Fan"
153
	select THERMAL
154
	default y
Linus Torvalds's avatar
Linus Torvalds committed
155 156 157 158
	help
	  This driver adds support for ACPI fan devices, allowing user-mode 
	  applications to perform basic fan control (on, off, status).

159 160
config ACPI_DOCK
	tristate "Dock"
Len Brown's avatar
Len Brown committed
161
	depends on EXPERIMENTAL
162 163 164
	help
	  This driver adds support for ACPI controlled docking stations

165
config ACPI_BAY
166
	tristate "Removable Drive Bay (EXPERIMENTAL)"
167
	depends on EXPERIMENTAL
168
	depends on ACPI_DOCK
169 170 171 172
	help
	  This driver adds support for ACPI controlled removable drive
	  bays such as the IBM ultrabay or the Dell Module Bay.

Linus Torvalds's avatar
Linus Torvalds committed
173 174
config ACPI_PROCESSOR
	tristate "Processor"
175
	select THERMAL
176
	default y
Linus Torvalds's avatar
Linus Torvalds committed
177 178 179
	help
	  This driver installs ACPI as the idle handler for Linux, and uses
	  ACPI C2 and C3 processor states to save power, on systems that
180 181
	  support it.  It is required by several flavors of cpufreq
	  Performance-state drivers.
Linus Torvalds's avatar
Linus Torvalds committed
182 183

config ACPI_HOTPLUG_CPU
184 185
	bool
	depends on ACPI_PROCESSOR && HOTPLUG_CPU
Linus Torvalds's avatar
Linus Torvalds committed
186
	select ACPI_CONTAINER
187
	default y
Linus Torvalds's avatar
Linus Torvalds committed
188 189 190 191

config ACPI_THERMAL
	tristate "Thermal Zone"
	depends on ACPI_PROCESSOR
192
	select THERMAL
193
	default y
Linus Torvalds's avatar
Linus Torvalds committed
194 195 196 197 198 199 200 201 202
	help
	  This driver adds support for ACPI thermal zones.  Most mobile and
	  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.

config ACPI_NUMA
	bool "NUMA support"
	depends on NUMA
203
	depends on (X86 || IA64)
Linus Torvalds's avatar
Linus Torvalds committed
204 205
	default y if IA64_GENERIC || IA64_SGI_SN2

206 207
config ACPI_WMI
	tristate "WMI (EXPERIMENTAL)"
Len Brown's avatar
Len Brown committed
208
	depends on X86
209 210
	depends on EXPERIMENTAL
	help
211 212
	  This driver adds support for the ACPI-WMI (Windows Management
	  Instrumentation) mapper device (PNP0C14) found on some systems.
213

214 215 216 217 218 219 220 221 222 223 224 225 226
	  ACPI-WMI is a proprietary extension to ACPI to expose parts of the
	  ACPI firmware to userspace - this is done through various vendor
	  defined methods and data blocks in a PNP0C14 device, which are then
	  made available for userspace to call.

	  The implementation of this in Linux currently only exposes this to
	  other kernel space drivers.

	  This driver is a required dependency to build the firmware specific
	  drivers needed on many machines, including Acer and HP laptops.

	  It is safe to enable this driver even if your DSDT doesn't define
	  any ACPI-WMI devices.
227

Linus Torvalds's avatar
Linus Torvalds committed
228 229 230
config ACPI_ASUS
        tristate "ASUS/Medion Laptop Extras"
	depends on X86
231
	select BACKLIGHT_CLASS_DEVICE
Linus Torvalds's avatar
Linus Torvalds committed
232 233 234 235 236 237 238 239 240 241 242 243
        ---help---
          This driver provides support for extra features of ACPI-compatible
          ASUS laptops. As some of Medion laptops are made by ASUS, it may also
          support some Medion laptops (such as 9675 for example).  It makes all
          the extra buttons generate standard ACPI events that go through
          /proc/acpi/events, and (on some models) adds support for changing the
          display brightness and output, switching the LCD backlight on and off,
          and most importantly, allows you to blink those fancy LEDs intended
          for reporting mail and wireless status.

	  Note: display switching code is currently considered EXPERIMENTAL,
	  toying with these values may even lock your machine.
Corentin Chary's avatar
Corentin Chary committed
244

Linus Torvalds's avatar
Linus Torvalds committed
245 246 247
          All settings are changed via /proc/acpi/asus directory entries. Owner
          and group for these entries can be set with asus_uid and asus_gid
          parameters.
Corentin Chary's avatar
Corentin Chary committed
248

Linus Torvalds's avatar
Linus Torvalds committed
249 250
          More information and a userspace daemon for handling the extra buttons
          at <http://sourceforge.net/projects/acpi4asus/>.
Corentin Chary's avatar
Corentin Chary committed
251

Linus Torvalds's avatar
Linus Torvalds committed
252 253 254
          If you have an ACPI-compatible ASUS laptop, say Y or M here. This
          driver is still under development, so if your laptop is unsupported or
          something works not quite as expected, please use the mailing list
Corentin Chary's avatar
Corentin Chary committed
255 256 257 258 259
          available on the above page (acpi4asus-user@lists.sourceforge.net).

	  NOTE: This driver is deprecated and will probably be removed soon,
	  use asus-laptop instead.

Linus Torvalds's avatar
Linus Torvalds committed
260 261
config ACPI_TOSHIBA
	tristate "Toshiba Laptop Extras"
Randy Dunlap's avatar
Randy Dunlap committed
262
	depends on X86 && INPUT
263
	select BACKLIGHT_CLASS_DEVICE
Linus Torvalds's avatar
Linus Torvalds committed
264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286
	---help---
	  This driver adds support for access to certain system settings
	  on "legacy free" Toshiba laptops.  These laptops can be recognized by
	  their lack of a BIOS setup menu and APM support.

	  On these machines, all system configuration is handled through the
	  ACPI.  This driver is required for access to controls not covered
	  by the general ACPI drivers, such as LCD brightness, video output,
	  etc.

	  This driver differs from the non-ACPI Toshiba laptop driver (located
	  under "Processor type and features") in several aspects.
	  Configuration is accessed by reading and writing text files in the
	  /proc tree instead of by program interface to /dev.  Furthermore, no
	  power management functions are exposed, as those are handled by the
	  general ACPI drivers.

	  More information about this driver is available at
	  <http://memebeam.org/toys/ToshibaAcpiDriver>.

	  If you have a legacy free Toshiba laptop (such as the Libretto L1
	  series), say Y.

287 288 289
config ACPI_CUSTOM_DSDT_FILE
	string "Custom DSDT Table file to include"
	default ""
Linus Torvalds's avatar
Linus Torvalds committed
290 291
	depends on !STANDALONE
	help
292 293 294
	  This option supports a custom DSDT by linking it into the kernel.
	  See Documentation/acpi/dsdt-override.txt

Uwe Zeisberger's avatar
Uwe Zeisberger committed
295 296
	  Enter the full path name to the file which includes the AmlCode
	  declaration.
Linus Torvalds's avatar
Linus Torvalds committed
297

298 299 300 301 302 303
	  If unsure, don't enter a file name.

config ACPI_CUSTOM_DSDT
	bool
	default ACPI_CUSTOM_DSDT_FILE != ""

Linus Torvalds's avatar
Linus Torvalds committed
304
config ACPI_BLACKLIST_YEAR
305
	int "Disable ACPI for systems before Jan 1st this year" if X86_32
Linus Torvalds's avatar
Linus Torvalds committed
306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322
	default 0
	help
	  enter a 4-digit year, eg. 2001 to disable ACPI by default
	  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
	  The ACPI driver can optionally report errors with a great deal
	  of verbosity. Saying Y enables these statements. This will increase
	  your kernel size by around 50K.

323 324 325 326 327 328 329 330
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.

Linus Torvalds's avatar
Linus Torvalds committed
331 332 333 334 335 336 337 338
config ACPI_EC
	bool
	default y
	help
	  This driver is required on some systems for the proper operation of
	  the battery and thermal drivers.  If you are compiling for a 
	  mobile system, say Y.

339 340 341 342 343 344 345 346 347
config ACPI_PCI_SLOT
	tristate "PCI slot detection driver"
	default n
	help
	  This driver will attempt to discover all PCI slots in your system,
	  and creates entries in /sys/bus/pci/slots/. This feature can
	  help you correlate PCI bus addresses with the physical geography
	  of your slots. If you are unsure, say N.

Linus Torvalds's avatar
Linus Torvalds committed
348 349 350 351 352 353 354 355 356 357 358 359
config ACPI_POWER
	bool
	default y

config ACPI_SYSTEM
	bool
	default y
	help
	  This driver will enable your system to shut down using ACPI, and
	  dump your ACPI DSDT table using /proc/acpi/dsdt.

config X86_PM_TIMER
360
	bool "Power Management Timer Support" if EMBEDDED
Linus Torvalds's avatar
Linus Torvalds committed
361
	depends on X86
362
	default y
Linus Torvalds's avatar
Linus Torvalds committed
363 364 365 366
	help
	  The Power Management Timer is available on all ACPI-capable,
	  in most cases even if ACPI is unusable or blacklisted.

Matt LaPlante's avatar
Matt LaPlante committed
367
	  This timing source is not affected by power management features
Linus Torvalds's avatar
Linus Torvalds committed
368 369 370 371
	  like aggressive processor idling, throttling, frequency and/or
	  voltage scaling, unlike the commonly used Time Stamp Counter
	  (TSC) timing source.

372 373
	  You should nearly always say Y here because many modern
	  systems require this timer. 
Linus Torvalds's avatar
Linus Torvalds committed
374 375 376 377 378 379

config ACPI_CONTAINER
	tristate "ACPI0004,PNP0A05 and PNP0A06 Container Driver (EXPERIMENTAL)"
	depends on EXPERIMENTAL
	default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO)
	 ---help---
380 381 382 383 384 385 386
	  This allows _physical_ insertion and removal of CPUs and memory.
	  This can be useful, for example, on NUMA machines that support
	  ACPI based physical hotplug of nodes, or non-NUMA machines that
	  support physical cpu/memory hot-plug.

	  If one selects "m", this driver can be loaded with
	  "modprobe acpi_container".
Linus Torvalds's avatar
Linus Torvalds committed
387 388 389

config ACPI_HOTPLUG_MEMORY
	tristate "Memory Hotplug"
390
	depends on MEMORY_HOTPLUG
Linus Torvalds's avatar
Linus Torvalds committed
391 392 393 394 395 396 397 398 399 400
	default n
	help
	  This driver adds supports for ACPI Memory Hotplug.  This driver
	  provides support for fielding notifications on ACPI memory
	  devices (PNP0C80) which represent memory ranges that may be
	  onlined or offlined during runtime.  

	  Enabling this driver assumes that your platform hardware
	  and firmware have support for hot-plugging physical memory. If
	  your system does not support physically adding or ripping out 
Matt LaPlante's avatar
Matt LaPlante committed
401
	  memory DIMMs at some platform defined granularity (individually 
Linus Torvalds's avatar
Linus Torvalds committed
402 403 404 405 406
	  or as a bank) at runtime, then you need not enable this driver.

	  If one selects "m," this driver can be loaded using the following
	  command: 
		$>modprobe acpi_memhotplug 
407 408

config ACPI_SBS
409
	tristate "Smart Battery System"
410
	depends on X86
411
	help
412 413
	  This driver adds support for the Smart Battery System, another
	  type of access to battery information, found on some laptops.
414

Linus Torvalds's avatar
Linus Torvalds committed
415
endif	# ACPI