1# 2# ACPI Configuration 3# 4 5menu "ACPI (Advanced Configuration and Power Interface) Support" 6 depends on !X86_NUMAQ 7 depends on !X86_VISWS 8 depends on !IA64_HP_SIM 9 depends on IA64 || X86 10 depends on PM 11 12config ACPI 13 bool "ACPI Support" 14 depends on IA64 || X86 15 depends on PCI 16 depends on PM 17 select PNP 18 default y 19 ---help--- 20 Advanced Configuration and Power Interface (ACPI) support for 21 Linux requires an ACPI compliant platform (hardware/firmware), 22 and assumes the presence of OS-directed configuration and power 23 management (OSPM) software. This option will enlarge your 24 kernel by about 70K. 25 26 Linux ACPI provides a robust functional replacement for several 27 legacy configuration and power management interfaces, including 28 the Plug-and-Play BIOS specification (PnP BIOS), the 29 MultiProcessor Specification (MPS), and the Advanced Power 30 Management (APM) specification. If both ACPI and APM support 31 are configured, whichever is loaded first shall be used. 32 33 The ACPI SourceForge project contains the latest source code, 34 documentation, tools, mailing list subscription, and other 35 information. This project is available at: 36 <http://sourceforge.net/projects/acpi> 37 38 Linux support for ACPI is based on Intel Corporation's ACPI 39 Component Architecture (ACPI CA). For more information see: 40 <http://developer.intel.com/technology/iapc/acpi> 41 42 ACPI is an open industry specification co-developed by Compaq, 43 Intel, Microsoft, Phoenix, and Toshiba. The specification is 44 available at: 45 <http://www.acpi.info> 46 47if ACPI 48 49config ACPI_SLEEP 50 bool "Sleep States" 51 depends on X86 && (!SMP || SUSPEND_SMP) 52 depends on PM 53 default y 54 ---help--- 55 This option adds support for ACPI suspend states. 56 57 With this option, you will be able to put the system "to sleep". 58 Sleep states are low power states for the system and devices. All 59 of the system operating state is saved to either memory or disk 60 (depending on the state), to allow the system to resume operation 61 quickly at your request. 62 63 Although this option sounds really nifty, barely any of the device 64 drivers have been converted to the new driver model and hence few 65 have proper power management support. 66 67 This option is not recommended for anyone except those doing driver 68 power management development. 69 70config ACPI_SLEEP_PROC_FS 71 bool 72 depends on ACPI_SLEEP && PROC_FS 73 default y 74 75config ACPI_SLEEP_PROC_SLEEP 76 bool "/proc/acpi/sleep (deprecated)" 77 depends on ACPI_SLEEP_PROC_FS 78 default n 79 ---help--- 80 Create /proc/acpi/sleep 81 Deprecated by /sys/power/state 82 83config ACPI_PROCFS 84 bool "Procfs interface (deprecated)" 85 depends on ACPI 86 default y 87 ---help--- 88 Procfs interface for ACPI is made optional for back-compatible. 89 As the same functions are duplicated in sysfs interface 90 and this proc interface will be removed some time later, 91 it's marked as deprecated. 92 ( /proc/acpi/debug_layer && debug_level are deprecated by 93 /sys/module/acpi/parameters/debug_layer && debug_level. 94 /proc/acpi/info is deprecated by 95 /sys/module/acpi/parameters/acpica_version ) 96 97config ACPI_AC 98 tristate "AC Adapter" 99 depends on X86 100 default y 101 help 102 This driver adds support for the AC Adapter object, which indicates 103 whether a system is on AC, or not. If you have a system that can 104 switch between A/C and battery, say Y. 105 106config ACPI_BATTERY 107 tristate "Battery" 108 depends on X86 109 default y 110 help 111 This driver adds support for battery information through 112 /proc/acpi/battery. If you have a mobile system with a battery, 113 say Y. 114 115config ACPI_BUTTON 116 tristate "Button" 117 depends on INPUT 118 default y 119 help 120 This driver handles events on the power, sleep and lid buttons. 121 A daemon reads /proc/acpi/event and perform user-defined actions 122 such as shutting down the system. This is necessary for 123 software controlled poweroff. 124 125config ACPI_VIDEO 126 tristate "Video" 127 depends on X86 && BACKLIGHT_CLASS_DEVICE 128 help 129 This driver implement the ACPI Extensions For Display Adapters 130 for integrated graphics devices on motherboard, as specified in 131 ACPI 2.0 Specification, Appendix B, allowing to perform some basic 132 control like defining the video POST device, retrieving EDID information 133 or to setup a video output, etc. 134 Note that this is an ref. implementation only. It may or may not work 135 for your integrated video device. 136 137config ACPI_FAN 138 tristate "Fan" 139 default y 140 help 141 This driver adds support for ACPI fan devices, allowing user-mode 142 applications to perform basic fan control (on, off, status). 143 144config ACPI_DOCK 145 tristate "Dock" 146 depends on EXPERIMENTAL 147 help 148 This driver adds support for ACPI controlled docking stations 149 150config ACPI_BAY 151 tristate "Removable Drive Bay (EXPERIMENTAL)" 152 depends on EXPERIMENTAL 153 depends on ACPI_DOCK 154 help 155 This driver adds support for ACPI controlled removable drive 156 bays such as the IBM ultrabay or the Dell Module Bay. 157 158config ACPI_PROCESSOR 159 tristate "Processor" 160 default y 161 help 162 This driver installs ACPI as the idle handler for Linux, and uses 163 ACPI C2 and C3 processor states to save power, on systems that 164 support it. It is required by several flavors of cpufreq 165 Performance-state drivers. 166 167config ACPI_HOTPLUG_CPU 168 bool 169 depends on ACPI_PROCESSOR && HOTPLUG_CPU 170 select ACPI_CONTAINER 171 default y 172 173config ACPI_THERMAL 174 tristate "Thermal Zone" 175 depends on ACPI_PROCESSOR 176 default y 177 help 178 This driver adds support for ACPI thermal zones. Most mobile and 179 some desktop systems support ACPI thermal zones. It is HIGHLY 180 recommended that this option be enabled, as your processor(s) 181 may be damaged without it. 182 183config ACPI_NUMA 184 bool "NUMA support" 185 depends on NUMA 186 depends on (X86 || IA64) 187 default y if IA64_GENERIC || IA64_SGI_SN2 188 189config ACPI_ASUS 190 tristate "ASUS/Medion Laptop Extras" 191 depends on X86 192 select BACKLIGHT_CLASS_DEVICE 193 ---help--- 194 This driver provides support for extra features of ACPI-compatible 195 ASUS laptops. As some of Medion laptops are made by ASUS, it may also 196 support some Medion laptops (such as 9675 for example). It makes all 197 the extra buttons generate standard ACPI events that go through 198 /proc/acpi/events, and (on some models) adds support for changing the 199 display brightness and output, switching the LCD backlight on and off, 200 and most importantly, allows you to blink those fancy LEDs intended 201 for reporting mail and wireless status. 202 203 Note: display switching code is currently considered EXPERIMENTAL, 204 toying with these values may even lock your machine. 205 206 All settings are changed via /proc/acpi/asus directory entries. Owner 207 and group for these entries can be set with asus_uid and asus_gid 208 parameters. 209 210 More information and a userspace daemon for handling the extra buttons 211 at <http://sourceforge.net/projects/acpi4asus/>. 212 213 If you have an ACPI-compatible ASUS laptop, say Y or M here. This 214 driver is still under development, so if your laptop is unsupported or 215 something works not quite as expected, please use the mailing list 216 available on the above page (acpi4asus-user@lists.sourceforge.net). 217 218 NOTE: This driver is deprecated and will probably be removed soon, 219 use asus-laptop instead. 220 221config ACPI_IBM 222 tristate "IBM ThinkPad Laptop Extras" 223 depends on X86 224 select BACKLIGHT_CLASS_DEVICE 225 ---help--- 226 This is a Linux ACPI driver for the IBM ThinkPad laptops. It adds 227 support for Fn-Fx key combinations, Bluetooth control, video 228 output switching, ThinkLight control, UltraBay eject and more. 229 For more information about this driver see <file:Documentation/ibm-acpi.txt> 230 and <http://ibm-acpi.sf.net/> . 231 232 If you have an IBM ThinkPad laptop, say Y or M here. 233 234config ACPI_IBM_DOCK 235 bool "Legacy Docking Station Support" 236 depends on ACPI_IBM 237 depends on ACPI_DOCK=n 238 default n 239 ---help--- 240 Allows the ibm_acpi driver to handle docking station events. 241 This support is obsoleted by CONFIG_HOTPLUG_PCI_ACPI. It will 242 allow locking and removing the laptop from the docking station, 243 but will not properly connect PCI devices. 244 245 If you are not sure, say N here. 246 247config ACPI_IBM_BAY 248 bool "Legacy Removable Bay Support" 249 depends on ACPI_IBM 250 default y 251 ---help--- 252 Allows the ibm_acpi driver to handle removable bays. It will allow 253 disabling the device in the bay, and also generate notifications when 254 the bay lever is ejected or inserted. 255 256 If you are not sure, say Y here. 257 258config ACPI_TOSHIBA 259 tristate "Toshiba Laptop Extras" 260 depends on X86 261 select BACKLIGHT_CLASS_DEVICE 262 ---help--- 263 This driver adds support for access to certain system settings 264 on "legacy free" Toshiba laptops. These laptops can be recognized by 265 their lack of a BIOS setup menu and APM support. 266 267 On these machines, all system configuration is handled through the 268 ACPI. This driver is required for access to controls not covered 269 by the general ACPI drivers, such as LCD brightness, video output, 270 etc. 271 272 This driver differs from the non-ACPI Toshiba laptop driver (located 273 under "Processor type and features") in several aspects. 274 Configuration is accessed by reading and writing text files in the 275 /proc tree instead of by program interface to /dev. Furthermore, no 276 power management functions are exposed, as those are handled by the 277 general ACPI drivers. 278 279 More information about this driver is available at 280 <http://memebeam.org/toys/ToshibaAcpiDriver>. 281 282 If you have a legacy free Toshiba laptop (such as the Libretto L1 283 series), say Y. 284 285config ACPI_CUSTOM_DSDT 286 bool "Include Custom DSDT" 287 depends on !STANDALONE 288 default n 289 help 290 This option is to load a custom ACPI DSDT 291 If you don't know what that is, say N. 292 293config ACPI_CUSTOM_DSDT_FILE 294 string "Custom DSDT Table file to include" 295 depends on ACPI_CUSTOM_DSDT 296 default "" 297 help 298 Enter the full path name to the file which includes the AmlCode 299 declaration. 300 301config ACPI_BLACKLIST_YEAR 302 int "Disable ACPI for systems before Jan 1st this year" if X86_32 303 default 0 304 help 305 enter a 4-digit year, eg. 2001 to disable ACPI by default 306 on platforms with DMI BIOS date before January 1st that year. 307 "acpi=force" can be used to override this mechanism. 308 309 Enter 0 to disable this mechanism and allow ACPI to 310 run by default no matter what the year. (default) 311 312config ACPI_DEBUG 313 bool "Debug Statements" 314 default n 315 help 316 The ACPI driver can optionally report errors with a great deal 317 of verbosity. Saying Y enables these statements. This will increase 318 your kernel size by around 50K. 319 320config ACPI_EC 321 bool 322 default y 323 help 324 This driver is required on some systems for the proper operation of 325 the battery and thermal drivers. If you are compiling for a 326 mobile system, say Y. 327 328config ACPI_POWER 329 bool 330 default y 331 332config ACPI_SYSTEM 333 bool 334 default y 335 help 336 This driver will enable your system to shut down using ACPI, and 337 dump your ACPI DSDT table using /proc/acpi/dsdt. 338 339config X86_PM_TIMER 340 bool "Power Management Timer Support" if EMBEDDED 341 depends on X86 342 default y 343 help 344 The Power Management Timer is available on all ACPI-capable, 345 in most cases even if ACPI is unusable or blacklisted. 346 347 This timing source is not affected by power management features 348 like aggressive processor idling, throttling, frequency and/or 349 voltage scaling, unlike the commonly used Time Stamp Counter 350 (TSC) timing source. 351 352 You should nearly always say Y here because many modern 353 systems require this timer. 354 355config ACPI_CONTAINER 356 tristate "ACPI0004,PNP0A05 and PNP0A06 Container Driver (EXPERIMENTAL)" 357 depends on EXPERIMENTAL 358 default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO) 359 ---help--- 360 This allows _physical_ insertion and removal of CPUs and memory. 361 This can be useful, for example, on NUMA machines that support 362 ACPI based physical hotplug of nodes, or non-NUMA machines that 363 support physical cpu/memory hot-plug. 364 365 If one selects "m", this driver can be loaded with 366 "modprobe acpi_container". 367 368config ACPI_HOTPLUG_MEMORY 369 tristate "Memory Hotplug" 370 depends on ACPI 371 depends on MEMORY_HOTPLUG 372 default n 373 help 374 This driver adds supports for ACPI Memory Hotplug. This driver 375 provides support for fielding notifications on ACPI memory 376 devices (PNP0C80) which represent memory ranges that may be 377 onlined or offlined during runtime. 378 379 Enabling this driver assumes that your platform hardware 380 and firmware have support for hot-plugging physical memory. If 381 your system does not support physically adding or ripping out 382 memory DIMMs at some platform defined granularity (individually 383 or as a bank) at runtime, then you need not enable this driver. 384 385 If one selects "m," this driver can be loaded using the following 386 command: 387 $>modprobe acpi_memhotplug 388 389config ACPI_SBS 390 tristate "Smart Battery System (EXPERIMENTAL)" 391 depends on X86 && I2C 392 depends on EXPERIMENTAL 393 help 394 This driver adds support for the Smart Battery System. 395 Depends on I2C (Device Drivers ---> I2C support) 396 A "Smart Battery" is quite old and quite rare compared 397 to today's ACPI "Control Method" battery. 398 399endif # ACPI 400 401endmenu 402