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54 | they have been replaced by functions in /sys.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fdcedbba | 76 | they have been replaced by functions in /sys.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