1# 2# ACPI Configuration 3# 4 5menuconfig ACPI 6 bool "ACPI (Advanced Configuration and Power Interface) Support" 7 depends on !X86_NUMAQ 8 depends on !X86_VISWS 9 depends on !IA64_HP_SIM 10 depends on IA64 || X86 11 depends on PCI 12 depends on PM 13 select PNP 14 default y 15 ---help--- 16 Advanced Configuration and Power Interface (ACPI) support for 17 Linux requires an ACPI compliant platform (hardware/firmware), 18 and assumes the presence of OS-directed configuration and power 19 management (OSPM) software. This option will enlarge your 20 kernel by about 70K. 21 22 Linux ACPI provides a robust functional replacement for several 23 legacy configuration and power management interfaces, including 24 the Plug-and-Play BIOS specification (PnP BIOS), the 25 MultiProcessor Specification (MPS), and the Advanced Power 26 Management (APM) specification. If both ACPI and APM support 27 are configured, whichever is loaded first shall be used. 28 29 The ACPI SourceForge project contains the latest source code, 30 documentation, tools, mailing list subscription, and other 31 information. This project is available at: 32 <http://sourceforge.net/projects/acpi> 33 34 Linux support for ACPI is based on Intel Corporation's ACPI 35 Component Architecture (ACPI CA). For more information see: 36 <http://developer.intel.com/technology/iapc/acpi> 37 38 ACPI is an open industry specification co-developed by Compaq, 39 Intel, Microsoft, Phoenix, and Toshiba. The specification is 40 available at: 41 <http://www.acpi.info> 42 43if ACPI 44 45config ACPI_SLEEP 46 bool 47 depends on PM_SLEEP 48 default y 49 50config ACPI_PROCFS 51 bool "Deprecated /proc/acpi files" 52 depends on PROC_FS 53 ---help--- 54 For backwards compatibility, this option allows 55 deprecated /proc/acpi/ files to exist, even when 56 they have been replaced by functions in /sys. 57 The deprecated files (and their replacements) include: 58 59 /proc/acpi/sleep (/sys/power/state) 60 /proc/acpi/info (/sys/modules/acpi/parameters/acpica_version) 61 /proc/acpi/dsdt (/sys/firmware/acpi/tables/DSDT) 62 /proc/acpi/fadt (/sys/firmware/acpi/tables/FACP) 63 /proc/acpi/debug_layer (/sys/module/acpi/parameters/debug_layer) 64 /proc/acpi/debug_level (/sys/module/acpi/parameters/debug_level) 65 66 This option has no effect on /proc/acpi/ files 67 and functions which do not yet exist in /sys. 68 69 Say N to delete /proc/acpi/ files that have moved to /sys/ 70config ACPI_PROCFS_POWER 71 bool "Deprecated power /proc/acpi folders" 72 depends on PROC_FS 73 default y 74 ---help--- 75 For backwards compatibility, this option allows 76 deprecated power /proc/acpi/ folders to exist, even when 77 they have been replaced by functions in /sys. 78 The deprecated folders (and their replacements) include: 79 /proc/acpi/battery/* (/sys/class/power_supply/*) 80 /proc/acpi/ac_adapter/* (sys/class/power_supply/*) 81 This option has no effect on /proc/acpi/ folders 82 and functions, which do not yet exist in /sys 83 84 Say N to delete power /proc/acpi/ folders that have moved to /sys/ 85config ACPI_SYSFS_POWER 86 bool "Future power /sys interface" 87 select POWER_SUPPLY 88 default y 89 ---help--- 90 Say N to disable power /sys interface 91config ACPI_PROC_EVENT 92 bool "Deprecated /proc/acpi/event support" 93 depends on PROC_FS 94 default y 95 ---help--- 96 A user-space daemon, acpi, typically read /proc/acpi/event 97 and handled all ACPI sub-system generated events. 98 99 These events are now delivered to user-space via 100 either the input layer, or as netlink events. 101 102 This build option enables the old code for legacy 103 user-space implementation. After some time, this will 104 be moved under CONFIG_ACPI_PROCFS, and then deleted. 105 106 Say Y here to retain the old behaviour. Say N if your 107 user-space is newer than kernel 2.6.23 (September 2007). 108 109config ACPI_AC 110 tristate "AC Adapter" 111 depends on X86 112 default y 113 help 114 This driver adds support for the AC Adapter object, which indicates 115 whether a system is on AC, or not. If you have a system that can 116 switch between A/C and battery, say Y. 117 118config ACPI_BATTERY 119 tristate "Battery" 120 depends on X86 121 default y 122 help 123 This driver adds support for battery information through 124 /proc/acpi/battery. If you have a mobile system with a battery, 125 say Y. 126 127config ACPI_BUTTON 128 tristate "Button" 129 depends on INPUT 130 default y 131 help 132 This driver handles events on the power, sleep and lid buttons. 133 A daemon reads /proc/acpi/event and perform user-defined actions 134 such as shutting down the system. This is necessary for 135 software controlled poweroff. 136 137config ACPI_VIDEO 138 tristate "Video" 139 depends on X86 && BACKLIGHT_CLASS_DEVICE && VIDEO_OUTPUT_CONTROL 140 depends on INPUT 141 help 142 This driver implement the ACPI Extensions For Display Adapters 143 for integrated graphics devices on motherboard, as specified in 144 ACPI 2.0 Specification, Appendix B, allowing to perform some basic 145 control like defining the video POST device, retrieving EDID information 146 or to setup a video output, etc. 147 Note that this is an ref. implementation only. It may or may not work 148 for your integrated video device. 149 150config ACPI_FAN 151 tristate "Fan" 152 default y 153 help 154 This driver adds support for ACPI fan devices, allowing user-mode 155 applications to perform basic fan control (on, off, status). 156 157config ACPI_DOCK 158 tristate "Dock" 159 depends on EXPERIMENTAL 160 help 161 This driver adds support for ACPI controlled docking stations 162 163config ACPI_BAY 164 tristate "Removable Drive Bay (EXPERIMENTAL)" 165 depends on EXPERIMENTAL 166 depends on ACPI_DOCK 167 help 168 This driver adds support for ACPI controlled removable drive 169 bays such as the IBM ultrabay or the Dell Module Bay. 170 171config ACPI_PROCESSOR 172 tristate "Processor" 173 default y 174 help 175 This driver installs ACPI as the idle handler for Linux, and uses 176 ACPI C2 and C3 processor states to save power, on systems that 177 support it. It is required by several flavors of cpufreq 178 Performance-state drivers. 179 180config ACPI_HOTPLUG_CPU 181 bool 182 depends on ACPI_PROCESSOR && HOTPLUG_CPU 183 select ACPI_CONTAINER 184 default y 185 186config ACPI_THERMAL 187 tristate "Thermal Zone" 188 depends on ACPI_PROCESSOR 189 default y 190 help 191 This driver adds support for ACPI thermal zones. Most mobile and 192 some desktop systems support ACPI thermal zones. It is HIGHLY 193 recommended that this option be enabled, as your processor(s) 194 may be damaged without it. 195 196config ACPI_NUMA 197 bool "NUMA support" 198 depends on NUMA 199 depends on (X86 || IA64) 200 default y if IA64_GENERIC || IA64_SGI_SN2 201 202config ACPI_ASUS 203 tristate "ASUS/Medion Laptop Extras" 204 depends on X86 205 select BACKLIGHT_CLASS_DEVICE 206 ---help--- 207 This driver provides support for extra features of ACPI-compatible 208 ASUS laptops. As some of Medion laptops are made by ASUS, it may also 209 support some Medion laptops (such as 9675 for example). It makes all 210 the extra buttons generate standard ACPI events that go through 211 /proc/acpi/events, and (on some models) adds support for changing the 212 display brightness and output, switching the LCD backlight on and off, 213 and most importantly, allows you to blink those fancy LEDs intended 214 for reporting mail and wireless status. 215 216 Note: display switching code is currently considered EXPERIMENTAL, 217 toying with these values may even lock your machine. 218 219 All settings are changed via /proc/acpi/asus directory entries. Owner 220 and group for these entries can be set with asus_uid and asus_gid 221 parameters. 222 223 More information and a userspace daemon for handling the extra buttons 224 at <http://sourceforge.net/projects/acpi4asus/>. 225 226 If you have an ACPI-compatible ASUS laptop, say Y or M here. This 227 driver is still under development, so if your laptop is unsupported or 228 something works not quite as expected, please use the mailing list 229 available on the above page (acpi4asus-user@lists.sourceforge.net). 230 231 NOTE: This driver is deprecated and will probably be removed soon, 232 use asus-laptop instead. 233 234config ACPI_TOSHIBA 235 tristate "Toshiba Laptop Extras" 236 depends on X86 237 select BACKLIGHT_CLASS_DEVICE 238 ---help--- 239 This driver adds support for access to certain system settings 240 on "legacy free" Toshiba laptops. These laptops can be recognized by 241 their lack of a BIOS setup menu and APM support. 242 243 On these machines, all system configuration is handled through the 244 ACPI. This driver is required for access to controls not covered 245 by the general ACPI drivers, such as LCD brightness, video output, 246 etc. 247 248 This driver differs from the non-ACPI Toshiba laptop driver (located 249 under "Processor type and features") in several aspects. 250 Configuration is accessed by reading and writing text files in the 251 /proc tree instead of by program interface to /dev. Furthermore, no 252 power management functions are exposed, as those are handled by the 253 general ACPI drivers. 254 255 More information about this driver is available at 256 <http://memebeam.org/toys/ToshibaAcpiDriver>. 257 258 If you have a legacy free Toshiba laptop (such as the Libretto L1 259 series), say Y. 260 261config ACPI_CUSTOM_DSDT 262 bool "Include Custom DSDT" 263 depends on !STANDALONE 264 default n 265 help 266 This option is to load a custom ACPI DSDT 267 If you don't know what that is, say N. 268 269config ACPI_CUSTOM_DSDT_FILE 270 string "Custom DSDT Table file to include" 271 depends on ACPI_CUSTOM_DSDT 272 default "" 273 help 274 Enter the full path name to the file which includes the AmlCode 275 declaration. 276 277config ACPI_BLACKLIST_YEAR 278 int "Disable ACPI for systems before Jan 1st this year" if X86_32 279 default 0 280 help 281 enter a 4-digit year, eg. 2001 to disable ACPI by default 282 on platforms with DMI BIOS date before January 1st that year. 283 "acpi=force" can be used to override this mechanism. 284 285 Enter 0 to disable this mechanism and allow ACPI to 286 run by default no matter what the year. (default) 287 288config ACPI_DEBUG 289 bool "Debug Statements" 290 default n 291 help 292 The ACPI driver can optionally report errors with a great deal 293 of verbosity. Saying Y enables these statements. This will increase 294 your kernel size by around 50K. 295 296config ACPI_DEBUG_FUNC_TRACE 297 bool "Additionally enable ACPI function tracing" 298 default n 299 depends on ACPI_DEBUG 300 help 301 ACPI Debug Statements slow down ACPI processing. Function trace 302 is about half of the penalty and is rarely useful. 303 304config ACPI_EC 305 bool 306 default y 307 help 308 This driver is required on some systems for the proper operation of 309 the battery and thermal drivers. If you are compiling for a 310 mobile system, say Y. 311 312config ACPI_POWER 313 bool 314 default y 315 316config ACPI_SYSTEM 317 bool 318 default y 319 help 320 This driver will enable your system to shut down using ACPI, and 321 dump your ACPI DSDT table using /proc/acpi/dsdt. 322 323config X86_PM_TIMER 324 bool "Power Management Timer Support" if EMBEDDED 325 depends on X86 326 default y 327 help 328 The Power Management Timer is available on all ACPI-capable, 329 in most cases even if ACPI is unusable or blacklisted. 330 331 This timing source is not affected by power management features 332 like aggressive processor idling, throttling, frequency and/or 333 voltage scaling, unlike the commonly used Time Stamp Counter 334 (TSC) timing source. 335 336 You should nearly always say Y here because many modern 337 systems require this timer. 338 339config ACPI_CONTAINER 340 tristate "ACPI0004,PNP0A05 and PNP0A06 Container Driver (EXPERIMENTAL)" 341 depends on EXPERIMENTAL 342 default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO) 343 ---help--- 344 This allows _physical_ insertion and removal of CPUs and memory. 345 This can be useful, for example, on NUMA machines that support 346 ACPI based physical hotplug of nodes, or non-NUMA machines that 347 support physical cpu/memory hot-plug. 348 349 If one selects "m", this driver can be loaded with 350 "modprobe acpi_container". 351 352config ACPI_HOTPLUG_MEMORY 353 tristate "Memory Hotplug" 354 depends on MEMORY_HOTPLUG 355 default n 356 help 357 This driver adds supports for ACPI Memory Hotplug. This driver 358 provides support for fielding notifications on ACPI memory 359 devices (PNP0C80) which represent memory ranges that may be 360 onlined or offlined during runtime. 361 362 Enabling this driver assumes that your platform hardware 363 and firmware have support for hot-plugging physical memory. If 364 your system does not support physically adding or ripping out 365 memory DIMMs at some platform defined granularity (individually 366 or as a bank) at runtime, then you need not enable this driver. 367 368 If one selects "m," this driver can be loaded using the following 369 command: 370 $>modprobe acpi_memhotplug 371 372config ACPI_SBS 373 tristate "Smart Battery System" 374 depends on X86 375 help 376 This driver adds support for the Smart Battery System, another 377 type of access to battery information, found on some laptops. 378 379endif # ACPI 380