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Commit | Line | Data |
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1da177e4 LT |
1 | # |
2 | # ACPI Configuration | |
3 | # | |
4 | ||
3f2c48c9 | 5 | menuconfig ACPI |
355ee5eb | 6 | bool "ACPI (Advanced Configuration and Power Interface) Support" |
1da177e4 LT |
7 | depends on !IA64_HP_SIM |
8 | depends on IA64 || X86 | |
1300124f | 9 | depends on PCI |
6796a120 | 10 | depends on PM |
243b66e7 | 11 | select PNP |
9fdd54f2 | 12 | select CPU_IDLE |
1da177e4 | 13 | default y |
1c48aa36 | 14 | help |
1da177e4 | 15 | Advanced Configuration and Power Interface (ACPI) support for |
1c48aa36 | 16 | Linux requires an ACPI-compliant platform (hardware/firmware), |
1da177e4 LT |
17 | and assumes the presence of OS-directed configuration and power |
18 | management (OSPM) software. This option will enlarge your | |
19 | kernel by about 70K. | |
20 | ||
21 | Linux ACPI provides a robust functional replacement for several | |
22 | legacy configuration and power management interfaces, including | |
23 | the Plug-and-Play BIOS specification (PnP BIOS), the | |
24 | MultiProcessor Specification (MPS), and the Advanced Power | |
25 | Management (APM) specification. If both ACPI and APM support | |
1c48aa36 | 26 | are configured, ACPI is used. |
1da177e4 | 27 | |
1c48aa36 BH |
28 | The project home page for the Linux ACPI subsystem is here: |
29 | <http://www.lesswatts.org/projects/acpi/> | |
1da177e4 LT |
30 | |
31 | Linux support for ACPI is based on Intel Corporation's ACPI | |
1c48aa36 BH |
32 | Component Architecture (ACPI CA). For more information on the |
33 | ACPI CA, see: | |
34 | <http://acpica.org/> | |
1da177e4 | 35 | |
1c48aa36 BH |
36 | ACPI is an open industry specification co-developed by |
37 | Hewlett-Packard, Intel, Microsoft, Phoenix, and Toshiba. | |
38 | The specification is available at: | |
1da177e4 LT |
39 | <http://www.acpi.info> |
40 | ||
3e11c3ce LB |
41 | if ACPI |
42 | ||
673d5b43 LB |
43 | config ACPI_SLEEP |
44 | bool | |
5d1e072b | 45 | depends on SUSPEND || HIBERNATION |
673d5b43 LB |
46 | default y |
47 | ||
b981c591 | 48 | config ACPI_PROCFS |
fb804714 LB |
49 | bool "Deprecated /proc/acpi files" |
50 | depends on PROC_FS | |
1c48aa36 | 51 | help |
fb804714 | 52 | For backwards compatibility, this option allows |
405bbe9f | 53 | deprecated /proc/acpi/ files to exist, even when |
fb804714 LB |
54 | they have been replaced by functions in /sys. |
55 | The deprecated files (and their replacements) include: | |
56 | ||
43532c8a | 57 | /proc/acpi/sleep (/sys/power/state) |
1c48aa36 | 58 | /proc/acpi/info (/sys/module/acpi/parameters/acpica_version) |
fb804714 LB |
59 | /proc/acpi/dsdt (/sys/firmware/acpi/tables/DSDT) |
60 | /proc/acpi/fadt (/sys/firmware/acpi/tables/FACP) | |
61 | /proc/acpi/debug_layer (/sys/module/acpi/parameters/debug_layer) | |
62 | /proc/acpi/debug_level (/sys/module/acpi/parameters/debug_level) | |
74cad4ee ZY |
63 | /proc/acpi/processor/*/power (/sys/devices/system/cpu/*/cpuidle/*) |
64 | /proc/acpi/processor/*/performance (/sys/devices/system/cpu/*/ | |
65 | cpufreq/*) | |
66 | /proc/acpi/processor/*/throttling (/sys/class/thermal/ | |
67 | cooling_device*/*) | |
fb804714 LB |
68 | This option has no effect on /proc/acpi/ files |
69 | and functions which do not yet exist in /sys. | |
70 | ||
71 | Say N to delete /proc/acpi/ files that have moved to /sys/ | |
1c48aa36 | 72 | |
fdcedbba | 73 | config ACPI_PROCFS_POWER |
9e527971 | 74 | bool "Deprecated power /proc/acpi directories" |
fdcedbba AS |
75 | depends on PROC_FS |
76 | default y | |
1c48aa36 | 77 | help |
fdcedbba | 78 | For backwards compatibility, this option allows |
9e527971 | 79 | deprecated power /proc/acpi/ directories to exist, even when |
fdcedbba | 80 | they have been replaced by functions in /sys. |
9e527971 | 81 | The deprecated directories (and their replacements) include: |
fdcedbba AS |
82 | /proc/acpi/battery/* (/sys/class/power_supply/*) |
83 | /proc/acpi/ac_adapter/* (sys/class/power_supply/*) | |
9e527971 | 84 | This option has no effect on /proc/acpi/ directories |
fdcedbba | 85 | and functions, which do not yet exist in /sys |
b981c591 | 86 | |
9e527971 AC |
87 | Say N to delete power /proc/acpi/ directories that have moved to /sys/ |
88 | ||
de584afa DW |
89 | config ACPI_POWER_METER |
90 | tristate "ACPI 4.0 power meter" | |
91 | depends on HWMON | |
92 | help | |
93 | This driver exposes ACPI 4.0 power meters as hardware monitoring | |
94 | devices. Say Y (or M) if you have a computer with ACPI 4.0 firmware | |
95 | and a power meter. | |
96 | ||
97 | To compile this driver as a module, choose M here: | |
98 | the module will be called power-meter. | |
99 | ||
97749cd9 AS |
100 | config ACPI_SYSFS_POWER |
101 | bool "Future power /sys interface" | |
102 | select POWER_SUPPLY | |
103 | default y | |
1c48aa36 | 104 | help |
97749cd9 | 105 | Say N to disable power /sys interface |
9e527971 | 106 | |
14e04fb3 LB |
107 | config ACPI_PROC_EVENT |
108 | bool "Deprecated /proc/acpi/event support" | |
109 | depends on PROC_FS | |
721ebe00 | 110 | default y |
1c48aa36 BH |
111 | help |
112 | A user-space daemon, acpid, typically reads /proc/acpi/event | |
113 | and handles all ACPI-generated events. | |
14e04fb3 | 114 | |
1c48aa36 BH |
115 | These events are now delivered to user-space either |
116 | via the input layer or as netlink events. | |
14e04fb3 | 117 | |
721ebe00 | 118 | This build option enables the old code for legacy |
14e04fb3 LB |
119 | user-space implementation. After some time, this will |
120 | be moved under CONFIG_ACPI_PROCFS, and then deleted. | |
121 | ||
721ebe00 HD |
122 | Say Y here to retain the old behaviour. Say N if your |
123 | user-space is newer than kernel 2.6.23 (September 2007). | |
124 | ||
1da177e4 LT |
125 | config ACPI_AC |
126 | tristate "AC Adapter" | |
5527c8be | 127 | depends on X86 |
07fefe4c | 128 | default y |
1da177e4 | 129 | help |
1c48aa36 BH |
130 | This driver supports the AC Adapter object, which indicates |
131 | whether a system is on AC or not. If you have a system that can | |
07fefe4c | 132 | switch between A/C and battery, say Y. |
1da177e4 | 133 | |
1c48aa36 BH |
134 | To compile this driver as a module, choose M here: |
135 | the module will be called ac. | |
136 | ||
1da177e4 LT |
137 | config ACPI_BATTERY |
138 | tristate "Battery" | |
5527c8be | 139 | depends on X86 |
07fefe4c | 140 | default y |
1da177e4 LT |
141 | help |
142 | This driver adds support for battery information through | |
143 | /proc/acpi/battery. If you have a mobile system with a battery, | |
144 | say Y. | |
145 | ||
1c48aa36 BH |
146 | To compile this driver as a module, choose M here: |
147 | the module will be called battery. | |
148 | ||
1da177e4 LT |
149 | config ACPI_BUTTON |
150 | tristate "Button" | |
c0968f0e | 151 | depends on INPUT |
07fefe4c | 152 | default y |
1da177e4 | 153 | help |
1c48aa36 | 154 | This driver handles events on the power, sleep, and lid buttons. |
07fefe4c LB |
155 | A daemon reads /proc/acpi/event and perform user-defined actions |
156 | such as shutting down the system. This is necessary for | |
1c48aa36 BH |
157 | software-controlled poweroff. |
158 | ||
159 | To compile this driver as a module, choose M here: | |
160 | the module will be called button. | |
1da177e4 LT |
161 | |
162 | config ACPI_VIDEO | |
163 | tristate "Video" | |
23b0f015 | 164 | depends on X86 && BACKLIGHT_CLASS_DEVICE && VIDEO_OUTPUT_CONTROL |
03e2bf26 | 165 | depends on INPUT |
63c4ec90 | 166 | select THERMAL |
1da177e4 | 167 | help |
1c48aa36 | 168 | This driver implements the ACPI Extensions For Display Adapters |
1da177e4 | 169 | for integrated graphics devices on motherboard, as specified in |
1c48aa36 BH |
170 | ACPI 2.0 Specification, Appendix B. This supports basic operations |
171 | such as defining the video POST device, retrieving EDID information, | |
172 | and setting up a video output. | |
173 | ||
174 | To compile this driver as a module, choose M here: | |
175 | the module will be called video. | |
1da177e4 LT |
176 | |
177 | config ACPI_FAN | |
178 | tristate "Fan" | |
63c4ec90 | 179 | select THERMAL |
07fefe4c | 180 | default y |
1da177e4 | 181 | help |
1c48aa36 | 182 | This driver supports ACPI fan devices, allowing user-mode |
1da177e4 LT |
183 | applications to perform basic fan control (on, off, status). |
184 | ||
1c48aa36 BH |
185 | To compile this driver as a module, choose M here: |
186 | the module will be called fan. | |
187 | ||
c8f7a62c | 188 | config ACPI_DOCK |
898b054f | 189 | bool "Dock" |
8d7bff6c | 190 | depends on EXPERIMENTAL |
c8f7a62c | 191 | help |
1c48aa36 BH |
192 | This driver supports ACPI-controlled docking stations and removable |
193 | drive bays such as the IBM Ultrabay and the Dell Module Bay. | |
01b57e73 | 194 | |
1da177e4 LT |
195 | config ACPI_PROCESSOR |
196 | tristate "Processor" | |
63c4ec90 | 197 | select THERMAL |
07fefe4c | 198 | default y |
1da177e4 | 199 | help |
1c48aa36 BH |
200 | This driver installs ACPI as the idle handler for Linux and uses |
201 | ACPI C2 and C3 processor states to save power on systems that | |
07fefe4c | 202 | support it. It is required by several flavors of cpufreq |
1c48aa36 BH |
203 | performance-state drivers. |
204 | ||
205 | To compile this driver as a module, choose M here: | |
206 | the module will be called processor. | |
1da177e4 LT |
207 | |
208 | config ACPI_HOTPLUG_CPU | |
cbfc1bae AB |
209 | bool |
210 | depends on ACPI_PROCESSOR && HOTPLUG_CPU | |
1da177e4 | 211 | select ACPI_CONTAINER |
cbfc1bae | 212 | default y |
1da177e4 LT |
213 | |
214 | config ACPI_THERMAL | |
215 | tristate "Thermal Zone" | |
216 | depends on ACPI_PROCESSOR | |
3f655ef8 | 217 | select THERMAL |
07fefe4c | 218 | default y |
1da177e4 | 219 | help |
1c48aa36 | 220 | This driver supports ACPI thermal zones. Most mobile and |
1da177e4 LT |
221 | some desktop systems support ACPI thermal zones. It is HIGHLY |
222 | recommended that this option be enabled, as your processor(s) | |
223 | may be damaged without it. | |
224 | ||
1c48aa36 BH |
225 | To compile this driver as a module, choose M here: |
226 | the module will be called thermal. | |
227 | ||
1da177e4 LT |
228 | config ACPI_NUMA |
229 | bool "NUMA support" | |
230 | depends on NUMA | |
762834e8 | 231 | depends on (X86 || IA64) |
1da177e4 LT |
232 | default y if IA64_GENERIC || IA64_SGI_SN2 |
233 | ||
7ce9573e RD |
234 | config ACPI_CUSTOM_DSDT_FILE |
235 | string "Custom DSDT Table file to include" | |
236 | default "" | |
1da177e4 | 237 | depends on !STANDALONE |
1da177e4 | 238 | help |
d89e9d6b LB |
239 | This option supports a custom DSDT by linking it into the kernel. |
240 | See Documentation/acpi/dsdt-override.txt | |
241 | ||
c30fe7f7 UZ |
242 | Enter the full path name to the file which includes the AmlCode |
243 | declaration. | |
1da177e4 | 244 | |
7ce9573e RD |
245 | If unsure, don't enter a file name. |
246 | ||
247 | config ACPI_CUSTOM_DSDT | |
248 | bool | |
249 | default ACPI_CUSTOM_DSDT_FILE != "" | |
250 | ||
1da177e4 | 251 | config ACPI_BLACKLIST_YEAR |
2eb1bdba | 252 | int "Disable ACPI for systems before Jan 1st this year" if X86_32 |
1da177e4 LT |
253 | default 0 |
254 | help | |
1c48aa36 | 255 | Enter a 4-digit year, e.g., 2001, to disable ACPI by default |
1da177e4 LT |
256 | on platforms with DMI BIOS date before January 1st that year. |
257 | "acpi=force" can be used to override this mechanism. | |
258 | ||
259 | Enter 0 to disable this mechanism and allow ACPI to | |
260 | run by default no matter what the year. (default) | |
261 | ||
262 | config ACPI_DEBUG | |
263 | bool "Debug Statements" | |
1da177e4 LT |
264 | default n |
265 | help | |
a0d84a92 BH |
266 | The ACPI subsystem can produce debug output. Saying Y enables this |
267 | output and increases the kernel size by around 50K. | |
268 | ||
269 | Use the acpi.debug_layer and acpi.debug_level kernel command-line | |
270 | parameters documented in Documentation/acpi/debug.txt and | |
271 | Documentation/kernel-parameters.txt to control the type and | |
272 | amount of debug output. | |
1da177e4 | 273 | |
798d9103 TR |
274 | config ACPI_DEBUG_FUNC_TRACE |
275 | bool "Additionally enable ACPI function tracing" | |
276 | default n | |
277 | depends on ACPI_DEBUG | |
278 | help | |
279 | ACPI Debug Statements slow down ACPI processing. Function trace | |
280 | is about half of the penalty and is rarely useful. | |
281 | ||
8344b568 AC |
282 | config ACPI_PCI_SLOT |
283 | tristate "PCI slot detection driver" | |
268a03a4 | 284 | depends on SYSFS |
8344b568 AC |
285 | default n |
286 | help | |
1c48aa36 BH |
287 | This driver creates entries in /sys/bus/pci/slots/ for all PCI |
288 | slots in the system. This can help correlate PCI bus addresses, | |
289 | i.e., segment/bus/device/function tuples, with physical slots in | |
290 | the system. If you are unsure, say N. | |
291 | ||
292 | To compile this driver as a module, choose M here: | |
293 | the module will be called pci_slot. | |
8344b568 | 294 | |
1da177e4 | 295 | config X86_PM_TIMER |
e78256b8 | 296 | bool "Power Management Timer Support" if EMBEDDED |
1da177e4 | 297 | depends on X86 |
07fefe4c | 298 | default y |
1da177e4 LT |
299 | help |
300 | The Power Management Timer is available on all ACPI-capable, | |
301 | in most cases even if ACPI is unusable or blacklisted. | |
302 | ||
c73a668c | 303 | This timing source is not affected by power management features |
1da177e4 LT |
304 | like aggressive processor idling, throttling, frequency and/or |
305 | voltage scaling, unlike the commonly used Time Stamp Counter | |
306 | (TSC) timing source. | |
307 | ||
e78256b8 AK |
308 | You should nearly always say Y here because many modern |
309 | systems require this timer. | |
1da177e4 LT |
310 | |
311 | config ACPI_CONTAINER | |
1c48aa36 | 312 | tristate "Container and Module Devices (EXPERIMENTAL)" |
1da177e4 LT |
313 | depends on EXPERIMENTAL |
314 | default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO) | |
1c48aa36 BH |
315 | help |
316 | This driver supports ACPI Container and Module devices (IDs | |
317 | ACPI0004, PNP0A05, and PNP0A06). | |
45b1b196 | 318 | |
1c48aa36 BH |
319 | This helps support hotplug of nodes, CPUs, and memory. |
320 | ||
321 | To compile this driver as a module, choose M here: | |
322 | the module will be called container. | |
1da177e4 LT |
323 | |
324 | config ACPI_HOTPLUG_MEMORY | |
325 | tristate "Memory Hotplug" | |
bc02af93 | 326 | depends on MEMORY_HOTPLUG |
1da177e4 LT |
327 | default n |
328 | help | |
1c48aa36 BH |
329 | This driver supports ACPI memory hotplug. The driver |
330 | fields notifications on ACPI memory devices (PNP0C80), | |
331 | which represent memory ranges that may be onlined or | |
332 | offlined during runtime. | |
1da177e4 | 333 | |
1c48aa36 BH |
334 | If your hardware and firmware do not support adding or |
335 | removing memory devices at runtime, you need not enable | |
336 | this driver. | |
1da177e4 | 337 | |
1c48aa36 BH |
338 | To compile this driver as a module, choose M here: |
339 | the module will be called acpi_memhotplug. | |
3f86b832 RT |
340 | |
341 | config ACPI_SBS | |
94f6c086 | 342 | tristate "Smart Battery System" |
b4150fc4 | 343 | depends on X86 |
3f86b832 | 344 | help |
1c48aa36 | 345 | This driver supports the Smart Battery System, another |
94f6c086 | 346 | type of access to battery information, found on some laptops. |
3f86b832 | 347 | |
1c48aa36 BH |
348 | To compile this driver as a module, choose M here: |
349 | the modules will be called sbs and sbshc. | |
350 | ||
1da177e4 | 351 | endif # ACPI |