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 select PM 14 select PCI 15 16 default y 17 ---help--- 18 Advanced Configuration and Power Interface (ACPI) support for 19 Linux requires an ACPI compliant platform (hardware/firmware), 20 and assumes the presence of OS-directed configuration and power 21 management (OSPM) software. This option will enlarge your 22 kernel by about 70K. 23 24 Linux ACPI provides a robust functional replacement for several 25 legacy configuration and power management interfaces, including 26 the Plug-and-Play BIOS specification (PnP BIOS), the 27 MultiProcessor Specification (MPS), and the Advanced Power 28 Management (APM) specification. If both ACPI and APM support 29 are configured, whichever is loaded first shall be used. 30 31 The ACPI SourceForge project contains the latest source code, 32 documentation, tools, mailing list subscription, and other 33 information. This project is available at: 34 <http://sourceforge.net/projects/acpi> 35 36 Linux support for ACPI is based on Intel Corporation's ACPI 37 Component Architecture (ACPI CA). For more information see: 38 <http://developer.intel.com/technology/iapc/acpi> 39 40 ACPI is an open industry specification co-developed by Compaq, 41 Intel, Microsoft, Phoenix, and Toshiba. The specification is 42 available at: 43 <http://www.acpi.info> 44 45if ACPI 46 47config ACPI_SLEEP 48 bool "Sleep States" 49 depends on X86 && (!SMP || SUSPEND_SMP) 50 depends on PM 51 default y 52 ---help--- 53 This option adds support for ACPI suspend states. 54 55 With this option, you will be able to put the system "to sleep". 56 Sleep states are low power states for the system and devices. All 57 of the system operating state is saved to either memory or disk 58 (depending on the state), to allow the system to resume operation 59 quickly at your request. 60 61 Although this option sounds really nifty, barely any of the device 62 drivers have been converted to the new driver model and hence few 63 have proper power management support. 64 65 This option is not recommended for anyone except those doing driver 66 power management development. 67 68config ACPI_SLEEP_PROC_FS 69 bool 70 depends on ACPI_SLEEP && PROC_FS 71 default y 72 73config ACPI_SLEEP_PROC_SLEEP 74 bool "/proc/acpi/sleep (deprecated)" 75 depends on ACPI_SLEEP_PROC_FS 76 default n 77 ---help--- 78 Create /proc/acpi/sleep 79 Deprecated by /sys/power/state 80 81config ACPI_AC 82 tristate "AC Adapter" 83 depends on X86 84 default y 85 help 86 This driver adds support for the AC Adapter object, which indicates 87 whether a system is on AC, or not. If you have a system that can 88 switch between A/C and battery, say Y. 89 90config ACPI_BATTERY 91 tristate "Battery" 92 depends on X86 93 default y 94 help 95 This driver adds support for battery information through 96 /proc/acpi/battery. If you have a mobile system with a battery, 97 say Y. 98 99config ACPI_BUTTON 100 tristate "Button" 101 default y 102 help 103 This driver handles events on the power, sleep and lid buttons. 104 A daemon reads /proc/acpi/event and perform user-defined actions 105 such as shutting down the system. This is necessary for 106 software controlled poweroff. 107 108config ACPI_VIDEO 109 tristate "Video" 110 depends on X86 111 default y 112 help 113 This driver implement the ACPI Extensions For Display Adapters 114 for integrated graphics devices on motherboard, as specified in 115 ACPI 2.0 Specification, Appendix B, allowing to perform some basic 116 control like defining the video POST device, retrieving EDID information 117 or to setup a video output, etc. 118 Note that this is an ref. implementation only. It may or may not work 119 for your integrated video device. 120 121config ACPI_HOTKEY 122 tristate "Generic Hotkey (EXPERIMENTAL)" 123 depends on EXPERIMENTAL 124 depends on X86 125 default n 126 help 127 Experimental consolidated hotkey driver. 128 If you are unsure, say N. 129 130config ACPI_FAN 131 tristate "Fan" 132 default y 133 help 134 This driver adds support for ACPI fan devices, allowing user-mode 135 applications to perform basic fan control (on, off, status). 136 137config ACPI_PROCESSOR 138 tristate "Processor" 139 default y 140 help 141 This driver installs ACPI as the idle handler for Linux, and uses 142 ACPI C2 and C3 processor states to save power, on systems that 143 support it. It is required by several flavors of cpufreq 144 Performance-state drivers. 145 146config ACPI_HOTPLUG_CPU 147 bool 148 depends on ACPI_PROCESSOR && HOTPLUG_CPU 149 select ACPI_CONTAINER 150 default y 151 152config ACPI_THERMAL 153 tristate "Thermal Zone" 154 depends on ACPI_PROCESSOR 155 default y 156 help 157 This driver adds support for ACPI thermal zones. Most mobile and 158 some desktop systems support ACPI thermal zones. It is HIGHLY 159 recommended that this option be enabled, as your processor(s) 160 may be damaged without it. 161 162config ACPI_NUMA 163 bool "NUMA support" 164 depends on NUMA 165 depends on (IA64 || X86_64) 166 default y if IA64_GENERIC || IA64_SGI_SN2 167 168config ACPI_ASUS 169 tristate "ASUS/Medion Laptop Extras" 170 depends on X86 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 196config ACPI_IBM 197 tristate "IBM ThinkPad Laptop Extras" 198 depends on X86 199 ---help--- 200 This is a Linux ACPI driver for the IBM ThinkPad laptops. It adds 201 support for Fn-Fx key combinations, Bluetooth control, video 202 output switching, ThinkLight control, UltraBay eject and more. 203 For more information about this driver see <file:Documentation/ibm-acpi.txt> 204 and <http://ibm-acpi.sf.net/> . 205 206 If you have an IBM ThinkPad laptop, say Y or M here. 207 208config ACPI_TOSHIBA 209 tristate "Toshiba Laptop Extras" 210 depends on X86 211 ---help--- 212 This driver adds support for access to certain system settings 213 on "legacy free" Toshiba laptops. These laptops can be recognized by 214 their lack of a BIOS setup menu and APM support. 215 216 On these machines, all system configuration is handled through the 217 ACPI. This driver is required for access to controls not covered 218 by the general ACPI drivers, such as LCD brightness, video output, 219 etc. 220 221 This driver differs from the non-ACPI Toshiba laptop driver (located 222 under "Processor type and features") in several aspects. 223 Configuration is accessed by reading and writing text files in the 224 /proc tree instead of by program interface to /dev. Furthermore, no 225 power management functions are exposed, as those are handled by the 226 general ACPI drivers. 227 228 More information about this driver is available at 229 <http://memebeam.org/toys/ToshibaAcpiDriver>. 230 231 If you have a legacy free Toshiba laptop (such as the Libretto L1 232 series), say Y. 233 234config ACPI_CUSTOM_DSDT 235 bool "Include Custom DSDT" 236 depends on !STANDALONE 237 default n 238 help 239 Thist option is to load a custom ACPI DSDT 240 If you don't know what that is, say N. 241 242config ACPI_CUSTOM_DSDT_FILE 243 string "Custom DSDT Table file to include" 244 depends on ACPI_CUSTOM_DSDT 245 default "" 246 help 247 Enter the full path name to the file wich includes the AmlCode declaration. 248 249config ACPI_BLACKLIST_YEAR 250 int "Disable ACPI for systems before Jan 1st this year" if X86 251 default 0 252 help 253 enter a 4-digit year, eg. 2001 to disable ACPI by default 254 on platforms with DMI BIOS date before January 1st that year. 255 "acpi=force" can be used to override this mechanism. 256 257 Enter 0 to disable this mechanism and allow ACPI to 258 run by default no matter what the year. (default) 259 260config ACPI_DEBUG 261 bool "Debug Statements" 262 default n 263 help 264 The ACPI driver can optionally report errors with a great deal 265 of verbosity. Saying Y enables these statements. This will increase 266 your kernel size by around 50K. 267 268config ACPI_EC 269 bool 270 depends on X86 271 default y 272 help 273 This driver is required on some systems for the proper operation of 274 the battery and thermal drivers. If you are compiling for a 275 mobile system, say Y. 276 277config ACPI_POWER 278 bool 279 default y 280 281config ACPI_SYSTEM 282 bool 283 default y 284 help 285 This driver will enable your system to shut down using ACPI, and 286 dump your ACPI DSDT table using /proc/acpi/dsdt. 287 288config X86_PM_TIMER 289 bool "Power Management Timer Support" 290 depends on X86 291 depends on !X86_64 292 default y 293 help 294 The Power Management Timer is available on all ACPI-capable, 295 in most cases even if ACPI is unusable or blacklisted. 296 297 This timing source is not affected by powermanagement features 298 like aggressive processor idling, throttling, frequency and/or 299 voltage scaling, unlike the commonly used Time Stamp Counter 300 (TSC) timing source. 301 302 So, if you see messages like 'Losing too many ticks!' in the 303 kernel logs, and/or you are using this on a notebook which 304 does not yet have an HPET, you should say "Y" here. 305 306config ACPI_CONTAINER 307 tristate "ACPI0004,PNP0A05 and PNP0A06 Container Driver (EXPERIMENTAL)" 308 depends on EXPERIMENTAL 309 default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO) 310 ---help--- 311 This allows _physical_ insertion and removal of CPUs and memory. 312 This can be useful, for example, on NUMA machines that support 313 ACPI based physical hotplug of nodes, or non-NUMA machines that 314 support physical cpu/memory hot-plug. 315 316 If one selects "m", this driver can be loaded with 317 "modprobe acpi_container". 318 319config ACPI_HOTPLUG_MEMORY 320 tristate "Memory Hotplug" 321 depends on ACPI 322 depends on MEMORY_HOTPLUG 323 default n 324 help 325 This driver adds supports for ACPI Memory Hotplug. This driver 326 provides support for fielding notifications on ACPI memory 327 devices (PNP0C80) which represent memory ranges that may be 328 onlined or offlined during runtime. 329 330 Enabling this driver assumes that your platform hardware 331 and firmware have support for hot-plugging physical memory. If 332 your system does not support physically adding or ripping out 333 memory DIMMs at some platfrom defined granularity (individually 334 or as a bank) at runtime, then you need not enable this driver. 335 336 If one selects "m," this driver can be loaded using the following 337 command: 338 $>modprobe acpi_memhotplug 339endif # ACPI 340 341endmenu 342