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54 For backwards compatibility, this option allows 55 depricated /proc/acpi/ files to exist, even when 56 they have been replaced by functions in /sys. 57 The deprecated files (and their replacements) include: 58 59 /proc/acpi/sleep (/sys/power/state) 60 /proc/acpi/info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