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54 For backwards compatibility, this option allows 55 deprecated /proc/acpi/ files to exist, even when 56 they have been replaced by functions in /sys. 57 The deprecated files (and their replacements) include: 58 59 /proc/acpi/sleep (/sys/power/state) 60 /proc/acpi/info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