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 default y 172 ---help--- 173 This driver provides support for extra features of ACPI-compatible 174 ASUS laptops. As some of Medion laptops are made by ASUS, it may also 175 support some Medion laptops (such as 9675 for example). It makes all 176 the extra buttons generate standard ACPI events that go through 177 /proc/acpi/events, and (on some models) adds support for changing the 178 display brightness and output, switching the LCD backlight on and off, 179 and most importantly, allows you to blink those fancy LEDs intended 180 for reporting mail and wireless status. 181 182 Note: display switching code is currently considered EXPERIMENTAL, 183 toying with these values may even lock your machine. 184 185 All settings are changed via /proc/acpi/asus directory entries. Owner 186 and group for these entries can be set with asus_uid and asus_gid 187 parameters. 188 189 More information and a userspace daemon for handling the extra buttons 190 at <http://sourceforge.net/projects/acpi4asus/>. 191 192 If you have an ACPI-compatible ASUS laptop, say Y or M here. This 193 driver is still under development, so if your laptop is unsupported or 194 something works not quite as expected, please use the mailing list 195 available on the above page (acpi4asus-user@lists.sourceforge.net) 196 197config ACPI_IBM 198 tristate "IBM ThinkPad Laptop Extras" 199 depends on X86 200 default y 201 ---help--- 202 This is a Linux ACPI driver for the IBM ThinkPad laptops. It adds 203 support for Fn-Fx key combinations, Bluetooth control, video 204 output switching, ThinkLight control, UltraBay eject and more. 205 For more information about this driver see <file:Documentation/ibm-acpi.txt> 206 and <http://ibm-acpi.sf.net/> . 207 208 If you have an IBM ThinkPad laptop, say Y or M here. 209 210config ACPI_TOSHIBA 211 tristate "Toshiba Laptop Extras" 212 depends on X86 213 default y 214 ---help--- 215 This driver adds support for access to certain system settings 216 on "legacy free" Toshiba laptops. These laptops can be recognized by 217 their lack of a BIOS setup menu and APM support. 218 219 On these machines, all system configuration is handled through the 220 ACPI. This driver is required for access to controls not covered 221 by the general ACPI drivers, such as LCD brightness, video output, 222 etc. 223 224 This driver differs from the non-ACPI Toshiba laptop driver (located 225 under "Processor type and features") in several aspects. 226 Configuration is accessed by reading and writing text files in the 227 /proc tree instead of by program interface to /dev. Furthermore, no 228 power management functions are exposed, as those are handled by the 229 general ACPI drivers. 230 231 More information about this driver is available at 232 <http://memebeam.org/toys/ToshibaAcpiDriver>. 233 234 If you have a legacy free Toshiba laptop (such as the Libretto L1 235 series), say Y. 236 237config ACPI_CUSTOM_DSDT 238 bool "Include Custom DSDT" 239 depends on !STANDALONE 240 default n 241 help 242 Thist option is to load a custom ACPI DSDT 243 If you don't know what that is, say N. 244 245config ACPI_CUSTOM_DSDT_FILE 246 string "Custom DSDT Table file to include" 247 depends on ACPI_CUSTOM_DSDT 248 default "" 249 help 250 Enter the full path name to the file wich includes the AmlCode declaration. 251 252config ACPI_BLACKLIST_YEAR 253 int "Disable ACPI for systems before Jan 1st this year" if X86 254 default 0 255 help 256 enter a 4-digit year, eg. 2001 to disable ACPI by default 257 on platforms with DMI BIOS date before January 1st that year. 258 "acpi=force" can be used to override this mechanism. 259 260 Enter 0 to disable this mechanism and allow ACPI to 261 run by default no matter what the year. (default) 262 263config ACPI_DEBUG 264 bool "Debug Statements" 265 default n 266 help 267 The ACPI driver can optionally report errors with a great deal 268 of verbosity. Saying Y enables these statements. This will increase 269 your kernel size by around 50K. 270 271config ACPI_EC 272 bool 273 depends on X86 274 default y 275 help 276 This driver is required on some systems for the proper operation of 277 the battery and thermal drivers. If you are compiling for a 278 mobile system, say Y. 279 280config ACPI_POWER 281 bool 282 default y 283 284config ACPI_SYSTEM 285 bool 286 default y 287 help 288 This driver will enable your system to shut down using ACPI, and 289 dump your ACPI DSDT table using /proc/acpi/dsdt. 290 291config X86_PM_TIMER 292 bool "Power Management Timer Support" 293 depends on X86 294 depends on !X86_64 295 default y 296 help 297 The Power Management Timer is available on all ACPI-capable, 298 in most cases even if ACPI is unusable or blacklisted. 299 300 This timing source is not affected by powermanagement features 301 like aggressive processor idling, throttling, frequency and/or 302 voltage scaling, unlike the commonly used Time Stamp Counter 303 (TSC) timing source. 304 305 So, if you see messages like 'Losing too many ticks!' in the 306 kernel logs, and/or you are using this on a notebook which 307 does not yet have an HPET, you should say "Y" here. 308 309config ACPI_CONTAINER 310 tristate "ACPI0004,PNP0A05 and PNP0A06 Container Driver (EXPERIMENTAL)" 311 depends on EXPERIMENTAL 312 default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO) 313 ---help--- 314 This allows _physical_ insertion and removal of CPUs and memory. 315 This can be useful, for example, on NUMA machines that support 316 ACPI based physical hotplug of nodes, or non-NUMA machines that 317 support physical cpu/memory hot-plug. 318 319 If one selects "m", this driver can be loaded with 320 "modprobe acpi_container". 321 322config ACPI_HOTPLUG_MEMORY 323 tristate "Memory Hotplug" 324 depends on ACPI 325 depends on MEMORY_HOTPLUG 326 default n 327 help 328 This driver adds supports for ACPI Memory Hotplug. This driver 329 provides support for fielding notifications on ACPI memory 330 devices (PNP0C80) which represent memory ranges that may be 331 onlined or offlined during runtime. 332 333 Enabling this driver assumes that your platform hardware 334 and firmware have support for hot-plugging physical memory. If 335 your system does not support physically adding or ripping out 336 memory DIMMs at some platfrom defined granularity (individually 337 or as a bank) at runtime, then you need not enable this driver. 338 339 If one selects "m," this driver can be loaded using the following 340 command: 341 $>modprobe acpi_memhotplug 342endif # ACPI 343 344endmenu 345