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54 For backwards compatibility, this option allows 55 depricated /proc/acpi/ files to exist, even when 56 they have been replaced by functions in /sys. 57 The deprecated files (and their replacements) include: 58 59 /proc/acpi/sleep (/sys/power/state) 60 /proc/acpi/info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