Kconfig 10 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
Len Brown's avatar
Len Brown committed
12
	select CPU_IDLE
Linus Torvalds's avatar
Linus Torvalds committed
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 41
	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
42 43
if ACPI

Len Brown's avatar
Len Brown committed
44 45
config ACPI_SLEEP
	bool
46
	depends on SUSPEND || HIBERNATION
Len Brown's avatar
Len Brown committed
47 48
	default y

49
config ACPI_PROCFS
50 51
	bool "Deprecated /proc/acpi files"
	depends on PROC_FS
52
	---help---
53
	  For backwards compatibility, this option allows
54
	  deprecated /proc/acpi/ files to exist, even when
55 56 57
	  they have been replaced by functions in /sys.
	  The deprecated files (and their replacements) include:

58
	  /proc/acpi/sleep (/sys/power/state)
59 60 61 62 63 64 65 66 67 68
	  /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/
69
config ACPI_PROCFS_POWER
70
	bool "Deprecated power /proc/acpi directories"
71 72 73 74
	depends on PROC_FS
	default y
	---help---
	  For backwards compatibility, this option allows
75
          deprecated power /proc/acpi/ directories to exist, even when
76
          they have been replaced by functions in /sys.
77
          The deprecated directories (and their replacements) include:
78 79
	  /proc/acpi/battery/* (/sys/class/power_supply/*)
	  /proc/acpi/ac_adapter/* (sys/class/power_supply/*)
80
	  This option has no effect on /proc/acpi/ directories
81
	  and functions, which do not yet exist in /sys
82

83 84
	  Say N to delete power /proc/acpi/ directories that have moved to /sys/

85 86 87 88 89 90
config ACPI_SYSFS_POWER
	bool "Future power /sys interface"
	select POWER_SUPPLY
	default y
	---help---
	  Say N to disable power /sys interface
91

92 93 94
config ACPI_PROC_EVENT
	bool "Deprecated /proc/acpi/event support"
	depends on PROC_FS
95
	default y
96 97 98 99 100 101 102
	---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.

103
	  This build option enables the old code for legacy
104 105 106
	  user-space implementation.  After some time, this will
	  be moved under CONFIG_ACPI_PROCFS, and then deleted.

107 108 109
	  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
110 111
config ACPI_AC
	tristate "AC Adapter"
112
	depends on X86
113
	default y
Linus Torvalds's avatar
Linus Torvalds committed
114 115
	help
	  This driver adds support for the AC Adapter object, which indicates
116 117
	  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
118 119 120

config ACPI_BATTERY
	tristate "Battery"
121
	depends on X86
122
	default y
Linus Torvalds's avatar
Linus Torvalds committed
123 124 125 126 127 128 129
	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"
130
	depends on INPUT
131
	default y
Linus Torvalds's avatar
Linus Torvalds committed
132
	help
133 134 135 136
	  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
137 138 139

config ACPI_VIDEO
	tristate "Video"
140
	depends on X86 && BACKLIGHT_CLASS_DEVICE && VIDEO_OUTPUT_CONTROL
141
	depends on INPUT
142
	select THERMAL
Linus Torvalds's avatar
Linus Torvalds committed
143 144 145 146 147 148 149 150 151 152 153
	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"
154
	select THERMAL
155
	default y
Linus Torvalds's avatar
Linus Torvalds committed
156 157 158 159
	help
	  This driver adds support for ACPI fan devices, allowing user-mode 
	  applications to perform basic fan control (on, off, status).

160
config ACPI_DOCK
161
	bool "Dock"
Len Brown's avatar
Len Brown committed
162
	depends on EXPERIMENTAL
163
	help
164 165
	  This driver adds support for ACPI controlled docking stations and removable
	  drive bays such as the IBM ultrabay or the Dell Module Bay.
166

Linus Torvalds's avatar
Linus Torvalds committed
167 168
config ACPI_PROCESSOR
	tristate "Processor"
169
	select THERMAL
170
	default y
Linus Torvalds's avatar
Linus Torvalds committed
171 172 173
	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
174 175
	  support it.  It is required by several flavors of cpufreq
	  Performance-state drivers.
Linus Torvalds's avatar
Linus Torvalds committed
176 177

config ACPI_HOTPLUG_CPU
178 179
	bool
	depends on ACPI_PROCESSOR && HOTPLUG_CPU
Linus Torvalds's avatar
Linus Torvalds committed
180
	select ACPI_CONTAINER
181
	default y
Linus Torvalds's avatar
Linus Torvalds committed
182 183 184 185

config ACPI_THERMAL
	tristate "Thermal Zone"
	depends on ACPI_PROCESSOR
186
	select THERMAL
187
	default y
Linus Torvalds's avatar
Linus Torvalds committed
188 189 190 191 192 193 194 195 196
	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
197
	depends on (X86 || IA64)
Linus Torvalds's avatar
Linus Torvalds committed
198 199
	default y if IA64_GENERIC || IA64_SGI_SN2

200 201 202
config ACPI_CUSTOM_DSDT_FILE
	string "Custom DSDT Table file to include"
	default ""
Linus Torvalds's avatar
Linus Torvalds committed
203 204
	depends on !STANDALONE
	help
205 206 207
	  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
208 209
	  Enter the full path name to the file which includes the AmlCode
	  declaration.
Linus Torvalds's avatar
Linus Torvalds committed
210

211 212 213 214 215 216
	  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
217
config ACPI_BLACKLIST_YEAR
218
	int "Disable ACPI for systems before Jan 1st this year" if X86_32
Linus Torvalds's avatar
Linus Torvalds committed
219 220 221 222 223 224 225 226 227 228 229 230 231
	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
232 233 234 235 236 237 238
	  The ACPI subsystem can produce debug output.  Saying Y enables this
	  output and increases the kernel size by around 50K.

	  Use the acpi.debug_layer and acpi.debug_level kernel command-line
	  parameters documented in Documentation/acpi/debug.txt and
	  Documentation/kernel-parameters.txt to control the type and
	  amount of debug output.
Linus Torvalds's avatar
Linus Torvalds committed
239

240 241 242 243 244 245 246 247
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.

248 249 250 251 252 253 254 255 256
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
257
config X86_PM_TIMER
258
	bool "Power Management Timer Support" if EMBEDDED
Linus Torvalds's avatar
Linus Torvalds committed
259
	depends on X86
260
	default y
Linus Torvalds's avatar
Linus Torvalds committed
261 262 263 264
	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
265
	  This timing source is not affected by power management features
Linus Torvalds's avatar
Linus Torvalds committed
266 267 268 269
	  like aggressive processor idling, throttling, frequency and/or
	  voltage scaling, unlike the commonly used Time Stamp Counter
	  (TSC) timing source.

270 271
	  You should nearly always say Y here because many modern
	  systems require this timer. 
Linus Torvalds's avatar
Linus Torvalds committed
272 273 274 275 276 277

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---
278 279 280 281 282 283
	  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
284
	  "modprobe container".
Linus Torvalds's avatar
Linus Torvalds committed
285 286 287

config ACPI_HOTPLUG_MEMORY
	tristate "Memory Hotplug"
288
	depends on MEMORY_HOTPLUG
Linus Torvalds's avatar
Linus Torvalds committed
289 290 291 292 293 294 295 296 297 298
	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
299
	  memory DIMMs at some platform defined granularity (individually 
Linus Torvalds's avatar
Linus Torvalds committed
300 301 302 303 304
	  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 
305 306

config ACPI_SBS
307
	tristate "Smart Battery System"
308
	depends on X86
309
	help
310 311
	  This driver adds support for the Smart Battery System, another
	  type of access to battery information, found on some laptops.
312

Linus Torvalds's avatar
Linus Torvalds committed
313
endif	# ACPI