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 LT |
13 | default y |
14 | ---help--- | |
15 | Advanced Configuration and Power Interface (ACPI) support for | |
16 | Linux requires an ACPI compliant platform (hardware/firmware), | |
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 | |
26 | are configured, whichever is loaded first shall be used. | |
27 | ||
28 | The ACPI SourceForge project contains the latest source code, | |
29 | documentation, tools, mailing list subscription, and other | |
30 | information. This project is available at: | |
31 | <http://sourceforge.net/projects/acpi> | |
32 | ||
33 | Linux support for ACPI is based on Intel Corporation's ACPI | |
34 | Component Architecture (ACPI CA). For more information see: | |
35 | <http://developer.intel.com/technology/iapc/acpi> | |
36 | ||
37 | ACPI is an open industry specification co-developed by Compaq, | |
38 | Intel, Microsoft, Phoenix, and Toshiba. The specification is | |
39 | available at: | |
40 | <http://www.acpi.info> | |
41 | ||
3e11c3ce LB |
42 | if ACPI |
43 | ||
673d5b43 LB |
44 | config ACPI_SLEEP |
45 | bool | |
5d1e072b | 46 | depends on SUSPEND || HIBERNATION |
673d5b43 LB |
47 | default y |
48 | ||
b981c591 | 49 | config ACPI_PROCFS |
fb804714 LB |
50 | bool "Deprecated /proc/acpi files" |
51 | depends on PROC_FS | |
b981c591 | 52 | ---help--- |
fb804714 | 53 | For backwards compatibility, this option allows |
405bbe9f | 54 | deprecated /proc/acpi/ files to exist, even when |
fb804714 LB |
55 | they have been replaced by functions in /sys. |
56 | The deprecated files (and their replacements) include: | |
57 | ||
43532c8a | 58 | /proc/acpi/sleep (/sys/power/state) |
fb804714 LB |
59 | /proc/acpi/info (/sys/modules/acpi/parameters/acpica_version) |
60 | /proc/acpi/dsdt (/sys/firmware/acpi/tables/DSDT) | |
61 | /proc/acpi/fadt (/sys/firmware/acpi/tables/FACP) | |
62 | /proc/acpi/debug_layer (/sys/module/acpi/parameters/debug_layer) | |
63 | /proc/acpi/debug_level (/sys/module/acpi/parameters/debug_level) | |
64 | ||
65 | This option has no effect on /proc/acpi/ files | |
66 | and functions which do not yet exist in /sys. | |
67 | ||
68 | Say N to delete /proc/acpi/ files that have moved to /sys/ | |
fdcedbba | 69 | config ACPI_PROCFS_POWER |
9e527971 | 70 | bool "Deprecated power /proc/acpi directories" |
fdcedbba AS |
71 | depends on PROC_FS |
72 | default y | |
73 | ---help--- | |
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 | ||
97749cd9 AS |
85 | config ACPI_SYSFS_POWER |
86 | bool "Future power /sys interface" | |
87 | select POWER_SUPPLY | |
88 | default y | |
89 | ---help--- | |
90 | Say N to disable power /sys interface | |
9e527971 | 91 | |
14e04fb3 LB |
92 | config ACPI_PROC_EVENT |
93 | bool "Deprecated /proc/acpi/event support" | |
94 | depends on PROC_FS | |
721ebe00 | 95 | default y |
14e04fb3 LB |
96 | ---help--- |
97 | A user-space daemon, acpi, typically read /proc/acpi/event | |
98 | and handled all ACPI sub-system generated events. | |
99 | ||
100 | These events are now delivered to user-space via | |
101 | either the input layer, or as netlink events. | |
102 | ||
721ebe00 | 103 | This build option enables the old code for legacy |
14e04fb3 LB |
104 | user-space implementation. After some time, this will |
105 | be moved under CONFIG_ACPI_PROCFS, and then deleted. | |
106 | ||
721ebe00 HD |
107 | Say Y here to retain the old behaviour. Say N if your |
108 | user-space is newer than kernel 2.6.23 (September 2007). | |
109 | ||
1da177e4 LT |
110 | config ACPI_AC |
111 | tristate "AC Adapter" | |
5527c8be | 112 | depends on X86 |
07fefe4c | 113 | default y |
1da177e4 LT |
114 | help |
115 | This driver adds support for the AC Adapter object, which indicates | |
07fefe4c LB |
116 | whether a system is on AC, or not. If you have a system that can |
117 | switch between A/C and battery, say Y. | |
1da177e4 LT |
118 | |
119 | config ACPI_BATTERY | |
120 | tristate "Battery" | |
5527c8be | 121 | depends on X86 |
07fefe4c | 122 | default y |
1da177e4 LT |
123 | help |
124 | This driver adds support for battery information through | |
125 | /proc/acpi/battery. If you have a mobile system with a battery, | |
126 | say Y. | |
127 | ||
128 | config ACPI_BUTTON | |
129 | tristate "Button" | |
c0968f0e | 130 | depends on INPUT |
07fefe4c | 131 | default y |
1da177e4 | 132 | help |
07fefe4c LB |
133 | This driver handles events on the power, sleep and lid buttons. |
134 | A daemon reads /proc/acpi/event and perform user-defined actions | |
135 | such as shutting down the system. This is necessary for | |
136 | software controlled poweroff. | |
1da177e4 LT |
137 | |
138 | config ACPI_VIDEO | |
139 | tristate "Video" | |
23b0f015 | 140 | depends on X86 && BACKLIGHT_CLASS_DEVICE && VIDEO_OUTPUT_CONTROL |
03e2bf26 | 141 | depends on INPUT |
63c4ec90 | 142 | select THERMAL |
1da177e4 LT |
143 | help |
144 | This driver implement the ACPI Extensions For Display Adapters | |
145 | for integrated graphics devices on motherboard, as specified in | |
146 | ACPI 2.0 Specification, Appendix B, allowing to perform some basic | |
147 | control like defining the video POST device, retrieving EDID information | |
148 | or to setup a video output, etc. | |
149 | Note that this is an ref. implementation only. It may or may not work | |
150 | for your integrated video device. | |
151 | ||
152 | config ACPI_FAN | |
153 | tristate "Fan" | |
63c4ec90 | 154 | select THERMAL |
07fefe4c | 155 | default y |
1da177e4 LT |
156 | help |
157 | This driver adds support for ACPI fan devices, allowing user-mode | |
158 | applications to perform basic fan control (on, off, status). | |
159 | ||
c8f7a62c | 160 | config ACPI_DOCK |
898b054f | 161 | bool "Dock" |
8d7bff6c | 162 | depends on EXPERIMENTAL |
c8f7a62c | 163 | help |
4be9309d SL |
164 | This driver adds support for ACPI controlled docking stations and removable |
165 | drive bays such as the IBM ultrabay or the Dell Module Bay. | |
01b57e73 | 166 | |
1da177e4 LT |
167 | config ACPI_PROCESSOR |
168 | tristate "Processor" | |
63c4ec90 | 169 | select THERMAL |
07fefe4c | 170 | default y |
1da177e4 LT |
171 | help |
172 | This driver installs ACPI as the idle handler for Linux, and uses | |
173 | ACPI C2 and C3 processor states to save power, on systems that | |
07fefe4c LB |
174 | support it. It is required by several flavors of cpufreq |
175 | Performance-state drivers. | |
1da177e4 LT |
176 | |
177 | config ACPI_HOTPLUG_CPU | |
cbfc1bae AB |
178 | bool |
179 | depends on ACPI_PROCESSOR && HOTPLUG_CPU | |
1da177e4 | 180 | select ACPI_CONTAINER |
cbfc1bae | 181 | default y |
1da177e4 LT |
182 | |
183 | config ACPI_THERMAL | |
184 | tristate "Thermal Zone" | |
185 | depends on ACPI_PROCESSOR | |
3f655ef8 | 186 | select THERMAL |
07fefe4c | 187 | default y |
1da177e4 LT |
188 | help |
189 | This driver adds support for ACPI thermal zones. Most mobile and | |
190 | some desktop systems support ACPI thermal zones. It is HIGHLY | |
191 | recommended that this option be enabled, as your processor(s) | |
192 | may be damaged without it. | |
193 | ||
194 | config ACPI_NUMA | |
195 | bool "NUMA support" | |
196 | depends on NUMA | |
762834e8 | 197 | depends on (X86 || IA64) |
1da177e4 LT |
198 | default y if IA64_GENERIC || IA64_SGI_SN2 |
199 | ||
7ce9573e RD |
200 | config ACPI_CUSTOM_DSDT_FILE |
201 | string "Custom DSDT Table file to include" | |
202 | default "" | |
1da177e4 | 203 | depends on !STANDALONE |
1da177e4 | 204 | help |
d89e9d6b LB |
205 | This option supports a custom DSDT by linking it into the kernel. |
206 | See Documentation/acpi/dsdt-override.txt | |
207 | ||
c30fe7f7 UZ |
208 | Enter the full path name to the file which includes the AmlCode |
209 | declaration. | |
1da177e4 | 210 | |
7ce9573e RD |
211 | If unsure, don't enter a file name. |
212 | ||
213 | config ACPI_CUSTOM_DSDT | |
214 | bool | |
215 | default ACPI_CUSTOM_DSDT_FILE != "" | |
216 | ||
1da177e4 | 217 | config ACPI_BLACKLIST_YEAR |
2eb1bdba | 218 | int "Disable ACPI for systems before Jan 1st this year" if X86_32 |
1da177e4 LT |
219 | default 0 |
220 | help | |
221 | enter a 4-digit year, eg. 2001 to disable ACPI by default | |
222 | on platforms with DMI BIOS date before January 1st that year. | |
223 | "acpi=force" can be used to override this mechanism. | |
224 | ||
225 | Enter 0 to disable this mechanism and allow ACPI to | |
226 | run by default no matter what the year. (default) | |
227 | ||
228 | config ACPI_DEBUG | |
229 | bool "Debug Statements" | |
1da177e4 LT |
230 | default n |
231 | help | |
a0d84a92 BH |
232 | The ACPI subsystem can produce debug output. Saying Y enables this |
233 | output and increases the kernel size by around 50K. | |
234 | ||
235 | Use the acpi.debug_layer and acpi.debug_level kernel command-line | |
236 | parameters documented in Documentation/acpi/debug.txt and | |
237 | Documentation/kernel-parameters.txt to control the type and | |
238 | amount of debug output. | |
1da177e4 | 239 | |
798d9103 TR |
240 | config ACPI_DEBUG_FUNC_TRACE |
241 | bool "Additionally enable ACPI function tracing" | |
242 | default n | |
243 | depends on ACPI_DEBUG | |
244 | help | |
245 | ACPI Debug Statements slow down ACPI processing. Function trace | |
246 | is about half of the penalty and is rarely useful. | |
247 | ||
8344b568 AC |
248 | config ACPI_PCI_SLOT |
249 | tristate "PCI slot detection driver" | |
250 | default n | |
251 | help | |
252 | This driver will attempt to discover all PCI slots in your system, | |
253 | and creates entries in /sys/bus/pci/slots/. This feature can | |
254 | help you correlate PCI bus addresses with the physical geography | |
255 | of your slots. If you are unsure, say N. | |
256 | ||
1da177e4 | 257 | config X86_PM_TIMER |
e78256b8 | 258 | bool "Power Management Timer Support" if EMBEDDED |
1da177e4 | 259 | depends on X86 |
07fefe4c | 260 | default y |
1da177e4 LT |
261 | help |
262 | The Power Management Timer is available on all ACPI-capable, | |
263 | in most cases even if ACPI is unusable or blacklisted. | |
264 | ||
c73a668c | 265 | This timing source is not affected by power management features |
1da177e4 LT |
266 | like aggressive processor idling, throttling, frequency and/or |
267 | voltage scaling, unlike the commonly used Time Stamp Counter | |
268 | (TSC) timing source. | |
269 | ||
e78256b8 AK |
270 | You should nearly always say Y here because many modern |
271 | systems require this timer. | |
1da177e4 LT |
272 | |
273 | config ACPI_CONTAINER | |
274 | tristate "ACPI0004,PNP0A05 and PNP0A06 Container Driver (EXPERIMENTAL)" | |
275 | depends on EXPERIMENTAL | |
276 | default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO) | |
277 | ---help--- | |
45b1b196 KT |
278 | This allows _physical_ insertion and removal of CPUs and memory. |
279 | This can be useful, for example, on NUMA machines that support | |
280 | ACPI based physical hotplug of nodes, or non-NUMA machines that | |
281 | support physical cpu/memory hot-plug. | |
282 | ||
283 | If one selects "m", this driver can be loaded with | |
370154bb | 284 | "modprobe container". |
1da177e4 LT |
285 | |
286 | config ACPI_HOTPLUG_MEMORY | |
287 | tristate "Memory Hotplug" | |
bc02af93 | 288 | depends on MEMORY_HOTPLUG |
1da177e4 LT |
289 | default n |
290 | help | |
291 | This driver adds supports for ACPI Memory Hotplug. This driver | |
292 | provides support for fielding notifications on ACPI memory | |
293 | devices (PNP0C80) which represent memory ranges that may be | |
294 | onlined or offlined during runtime. | |
295 | ||
296 | Enabling this driver assumes that your platform hardware | |
297 | and firmware have support for hot-plugging physical memory. If | |
298 | your system does not support physically adding or ripping out | |
c73a668c | 299 | memory DIMMs at some platform defined granularity (individually |
1da177e4 LT |
300 | or as a bank) at runtime, then you need not enable this driver. |
301 | ||
302 | If one selects "m," this driver can be loaded using the following | |
303 | command: | |
304 | $>modprobe acpi_memhotplug | |
3f86b832 RT |
305 | |
306 | config ACPI_SBS | |
94f6c086 | 307 | tristate "Smart Battery System" |
b4150fc4 | 308 | depends on X86 |
3f86b832 | 309 | help |
94f6c086 AS |
310 | This driver adds support for the Smart Battery System, another |
311 | type of access to battery information, found on some laptops. | |
3f86b832 | 312 | |
1da177e4 | 313 | endif # ACPI |