1# 2# ACPI Configuration 3# 4 5menuconfig ACPI 6 bool "ACPI Support (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54 For backwards compatibility, this option allows 55 depricated /proc/acpi/ files to exist, even when 56 they have been replaced by functions in /sys. 57 The deprecated files (and their replacements) include: 58 59 /proc/acpi/sleep (/sys/power/state) 60 /proc/acpi/info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 default y 93 help 94 This driver adds support for the AC Adapter object, which indicates 95 whether a system is on AC, or not. If you have a system that can 96 switch between A/C and battery, say Y. 97 98config ACPI_BATTERY 99 tristate "Battery" 100 depends on X86 101 default y 102 help 103 This driver adds support for battery information through 104 /proc/acpi/battery. If you have a mobile system with a battery, 105 say Y. 106 107config ACPI_BUTTON 108 tristate "Button" 109 depends on INPUT 110 default y 111 help 112 This driver handles events on the power, sleep and lid buttons. 113 A daemon reads /proc/acpi/event and perform user-defined actions 114 such as shutting down the system. This is necessary for 115 software controlled poweroff. 116 117config ACPI_VIDEO 118 tristate "Video" 119 depends on X86 && BACKLIGHT_CLASS_DEVICE && VIDEO_OUTPUT_CONTROL 120 help 121 This driver implement the ACPI Extensions For Display Adapters 122 for integrated graphics devices on motherboard, as specified in 123 ACPI 2.0 Specification, Appendix B, allowing to perform some basic 124 control like defining the video POST device, retrieving EDID information 125 or to setup a video output, etc. 126 Note that this is an ref. implementation only. It may or may not work 127 for your integrated video device. 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_DOCK 137 tristate "Dock" 138 depends on EXPERIMENTAL 139 help 140 This driver adds support for ACPI controlled docking stations 141 142config ACPI_BAY 143 tristate "Removable Drive Bay (EXPERIMENTAL)" 144 depends on EXPERIMENTAL 145 depends on ACPI_DOCK 146 help 147 This driver adds support for ACPI controlled removable drive 148 bays such as the IBM ultrabay or the Dell Module Bay. 149 150config ACPI_PROCESSOR 151 tristate "Processor" 152 default y 153 help 154 This driver installs ACPI as the idle handler for Linux, and uses 155 ACPI C2 and C3 processor states to save power, on systems that 156 support it. It is required by several flavors of cpufreq 157 Performance-state drivers. 158 159config ACPI_HOTPLUG_CPU 160 bool 161 depends on ACPI_PROCESSOR && HOTPLUG_CPU 162 select ACPI_CONTAINER 163 default y 164 165config ACPI_THERMAL 166 tristate "Thermal Zone" 167 depends on ACPI_PROCESSOR 168 default y 169 help 170 This driver adds support for ACPI thermal zones. Most mobile and 171 some desktop systems support ACPI thermal zones. It is HIGHLY 172 recommended that this option be enabled, as your processor(s) 173 may be damaged without it. 174 175config ACPI_NUMA 176 bool "NUMA support" 177 depends on NUMA 178 depends on (X86 || IA64) 179 default y if IA64_GENERIC || IA64_SGI_SN2 180 181config ACPI_ASUS 182 tristate "ASUS/Medion Laptop Extras" 183 depends on X86 184 select BACKLIGHT_CLASS_DEVICE 185 ---help--- 186 This driver provides support for extra features of ACPI-compatible 187 ASUS laptops. As some of Medion laptops are made by ASUS, it may also 188 support some Medion laptops (such as 9675 for example). It makes all 189 the extra buttons generate standard ACPI events that go through 190 /proc/acpi/events, and (on some models) adds support for changing the 191 display brightness and output, switching the LCD backlight on and off, 192 and most importantly, allows you to blink those fancy LEDs intended 193 for reporting mail and wireless status. 194 195 Note: display switching code is currently considered EXPERIMENTAL, 196 toying with these values may even lock your machine. 197 198 All settings are changed via /proc/acpi/asus directory entries. Owner 199 and group for these entries can be set with asus_uid and asus_gid 200 parameters. 201 202 More information and a userspace daemon for handling the extra buttons 203 at <http://sourceforge.net/projects/acpi4asus/>. 204 205 If you have an ACPI-compatible ASUS laptop, say Y or M here. This 206 driver is still under development, so if your laptop is unsupported or 207 something works not quite as expected, please use the mailing list 208 available on the above page (acpi4asus-user@lists.sourceforge.net). 209 210 NOTE: This driver is deprecated and will probably be removed soon, 211 use asus-laptop instead. 212 213config ACPI_TOSHIBA 214 tristate "Toshiba Laptop Extras" 215 depends on X86 216 select BACKLIGHT_CLASS_DEVICE 217 ---help--- 218 This driver adds support for access to certain system settings 219 on "legacy free" Toshiba laptops. These laptops can be recognized by 220 their lack of a BIOS setup menu and APM support. 221 222 On these machines, all system configuration is handled through the 223 ACPI. This driver is required for access to controls not covered 224 by the general ACPI drivers, such as LCD brightness, video output, 225 etc. 226 227 This driver differs from the non-ACPI Toshiba laptop driver (located 228 under "Processor type and features") in several aspects. 229 Configuration is accessed by reading and writing text files in the 230 /proc tree instead of by program interface to /dev. Furthermore, no 231 power management functions are exposed, as those are handled by the 232 general ACPI drivers. 233 234 More information about this driver is available at 235 <http://memebeam.org/toys/ToshibaAcpiDriver>. 236 237 If you have a legacy free Toshiba laptop (such as the Libretto L1 238 series), say Y. 239 240config ACPI_CUSTOM_DSDT 241 bool "Include Custom DSDT" 242 depends on !STANDALONE 243 default n 244 help 245 This option is to load a custom ACPI DSDT 246 If you don't know what that is, say N. 247 248config ACPI_CUSTOM_DSDT_FILE 249 string "Custom DSDT Table file to include" 250 depends on ACPI_CUSTOM_DSDT 251 default "" 252 help 253 Enter the full path name to the file which includes the AmlCode 254 declaration. 255 256config ACPI_BLACKLIST_YEAR 257 int "Disable ACPI for systems before Jan 1st this year" if X86_32 258 default 0 259 help 260 enter a 4-digit year, eg. 2001 to disable ACPI by default 261 on platforms with DMI BIOS date before January 1st that year. 262 "acpi=force" can be used to override this mechanism. 263 264 Enter 0 to disable this mechanism and allow ACPI to 265 run by default no matter what the year. (default) 266 267config ACPI_DEBUG 268 bool "Debug Statements" 269 default n 270 help 271 The ACPI driver can optionally report errors with a great deal 272 of verbosity. Saying Y enables these statements. This will increase 273 your kernel size by around 50K. 274 275config ACPI_DEBUG_FUNC_TRACE 276 bool "Additionally enable ACPI function tracing" 277 default n 278 depends on ACPI_DEBUG 279 help 280 ACPI Debug Statements slow down ACPI processing. Function trace 281 is about half of the penalty and is rarely useful. 282 283config ACPI_EC 284 bool 285 default y 286 help 287 This driver is required on some systems for the proper operation of 288 the battery and thermal drivers. If you are compiling for a 289 mobile system, say Y. 290 291config ACPI_POWER 292 bool 293 default y 294 295config ACPI_SYSTEM 296 bool 297 default y 298 help 299 This driver will enable your system to shut down using ACPI, and 300 dump your ACPI DSDT table using /proc/acpi/dsdt. 301 302config X86_PM_TIMER 303 bool "Power Management Timer Support" if EMBEDDED 304 depends on X86 305 default y 306 help 307 The Power Management Timer is available on all ACPI-capable, 308 in most cases even if ACPI is unusable or blacklisted. 309 310 This timing source is not affected by power management features 311 like aggressive processor idling, throttling, frequency and/or 312 voltage scaling, unlike the commonly used Time Stamp Counter 313 (TSC) timing source. 314 315 You should nearly always say Y here because many modern 316 systems require this timer. 317 318config ACPI_CONTAINER 319 tristate "ACPI0004,PNP0A05 and PNP0A06 Container Driver (EXPERIMENTAL)" 320 depends on EXPERIMENTAL 321 default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO) 322 ---help--- 323 This allows _physical_ insertion and removal of CPUs and memory. 324 This can be useful, for example, on NUMA machines that support 325 ACPI based physical hotplug of nodes, or non-NUMA machines that 326 support physical cpu/memory hot-plug. 327 328 If one selects "m", this driver can be loaded with 329 "modprobe acpi_container". 330 331config ACPI_HOTPLUG_MEMORY 332 tristate "Memory Hotplug" 333 depends on MEMORY_HOTPLUG 334 default n 335 help 336 This driver adds supports for ACPI Memory Hotplug. This driver 337 provides support for fielding notifications on ACPI memory 338 devices (PNP0C80) which represent memory ranges that may be 339 onlined or offlined during runtime. 340 341 Enabling this driver assumes that your platform hardware 342 and firmware have support for hot-plugging physical memory. If 343 your system does not support physically adding or ripping out 344 memory DIMMs at some platform defined granularity (individually 345 or as a bank) at runtime, then you need not enable this driver. 346 347 If one selects "m," this driver can be loaded using the following 348 command: 349 $>modprobe acpi_memhotplug 350 351config ACPI_SBS 352 tristate "Smart Battery System (EXPERIMENTAL)" 353 depends on X86 354 depends on EXPERIMENTAL 355 help 356 This driver adds support for the Smart Battery System. 357 A "Smart Battery" is quite old and quite rare compared 358 to today's ACPI "Control Method" battery. 359 360endif # ACPI 361