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