Pull thinkpad into release branch
Conflicts: drivers/misc/Kconfig Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Len Brown
commit
f188291aec
|
|
@ -1,16 +1,22 @@
|
|||
IBM ThinkPad ACPI Extras Driver
|
||||
ThinkPad ACPI Extras Driver
|
||||
|
||||
Version 0.12
|
||||
17 August 2005
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Version 0.14
|
||||
April 21st, 2007
|
||||
|
||||
Borislav Deianov <borislav@users.sf.net>
|
||||
Henrique de Moraes Holschuh <hmh@hmh.eng.br>
|
||||
http://ibm-acpi.sf.net/
|
||||
|
||||
|
||||
This is a Linux ACPI driver for the IBM ThinkPad laptops. It supports
|
||||
various features of these laptops which are accessible through the
|
||||
ACPI framework but not otherwise supported by the generic Linux ACPI
|
||||
drivers.
|
||||
This is a Linux driver for the IBM and Lenovo ThinkPad laptops. It
|
||||
supports various features of these laptops which are accessible
|
||||
through the ACPI and ACPI EC framework, but not otherwise fully
|
||||
supported by the generic Linux ACPI drivers.
|
||||
|
||||
This driver used to be named ibm-acpi until kernel 2.6.21 and release
|
||||
0.13-20070314. It used to be in the drivers/acpi tree, but it was
|
||||
moved to the drivers/misc tree and renamed to thinkpad-acpi for kernel
|
||||
2.6.22, and release 0.14.
|
||||
|
||||
|
||||
Status
|
||||
|
|
@ -21,7 +27,7 @@ detailed description):
|
|||
|
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- Fn key combinations
|
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- Bluetooth enable and disable
|
||||
- video output switching, expansion control
|
||||
- video output switching, expansion control
|
||||
- ThinkLight on and off
|
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- limited docking and undocking
|
||||
- UltraBay eject
|
||||
|
|
@ -32,7 +38,7 @@ detailed description):
|
|||
- Experimental: embedded controller register dump
|
||||
- LCD brightness control
|
||||
- Volume control
|
||||
- Experimental: fan speed, fan enable/disable
|
||||
- Fan control and monitoring: fan speed, fan enable/disable
|
||||
- Experimental: WAN enable and disable
|
||||
|
||||
A compatibility table by model and feature is maintained on the web
|
||||
|
|
@ -42,6 +48,8 @@ Please include the following information in your report:
|
|||
|
||||
- ThinkPad model name
|
||||
- a copy of your DSDT, from /proc/acpi/dsdt
|
||||
- a copy of the output of dmidecode, with serial numbers
|
||||
and UUIDs masked off
|
||||
- which driver features work and which don't
|
||||
- the observed behavior of non-working features
|
||||
|
||||
|
|
@ -52,25 +60,85 @@ Installation
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|||
------------
|
||||
|
||||
If you are compiling this driver as included in the Linux kernel
|
||||
sources, simply enable the CONFIG_ACPI_IBM option (Power Management /
|
||||
ACPI / IBM ThinkPad Laptop Extras).
|
||||
sources, simply enable the CONFIG_THINKPAD_ACPI option, and optionally
|
||||
enable the CONFIG_THINKPAD_ACPI_BAY option if you want the
|
||||
thinkpad-specific bay functionality.
|
||||
|
||||
Features
|
||||
--------
|
||||
|
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The driver creates the /proc/acpi/ibm directory. There is a file under
|
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that directory for each feature described below. Note that while the
|
||||
driver is still in the alpha stage, the exact proc file format and
|
||||
commands supported by the various features is guaranteed to change
|
||||
frequently.
|
||||
The driver exports two different interfaces to userspace, which can be
|
||||
used to access the features it provides. One is a legacy procfs-based
|
||||
interface, which will be removed at some time in the distant future.
|
||||
The other is a new sysfs-based interface which is not complete yet.
|
||||
|
||||
Driver version -- /proc/acpi/ibm/driver
|
||||
---------------------------------------
|
||||
The procfs interface creates the /proc/acpi/ibm directory. There is a
|
||||
file under that directory for each feature it supports. The procfs
|
||||
interface is mostly frozen, and will change very little if at all: it
|
||||
will not be extended to add any new functionality in the driver, instead
|
||||
all new functionality will be implemented on the sysfs interface.
|
||||
|
||||
The sysfs interface tries to blend in the generic Linux sysfs subsystems
|
||||
and classes as much as possible. Since some of these subsystems are not
|
||||
yet ready or stabilized, it is expected that this interface will change,
|
||||
and any and all userspace programs must deal with it.
|
||||
|
||||
|
||||
Notes about the sysfs interface:
|
||||
|
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Unlike what was done with the procfs interface, correctness when talking
|
||||
to the sysfs interfaces will be enforced, as will correctness in the
|
||||
thinkpad-acpi's implementation of sysfs interfaces.
|
||||
|
||||
Also, any bugs in the thinkpad-acpi sysfs driver code or in the
|
||||
thinkpad-acpi's implementation of the sysfs interfaces will be fixed for
|
||||
maximum correctness, even if that means changing an interface in
|
||||
non-compatible ways. As these interfaces mature both in the kernel and
|
||||
in thinkpad-acpi, such changes should become quite rare.
|
||||
|
||||
Applications interfacing to the thinkpad-acpi sysfs interfaces must
|
||||
follow all sysfs guidelines and correctly process all errors (the sysfs
|
||||
interface makes extensive use of errors). File descriptors and open /
|
||||
close operations to the sysfs inodes must also be properly implemented.
|
||||
|
||||
The version of thinkpad-acpi's sysfs interface is exported by the driver
|
||||
as a driver attribute (see below).
|
||||
|
||||
Sysfs driver attributes are on the driver's sysfs attribute space,
|
||||
for 2.6.20 this is /sys/bus/platform/drivers/thinkpad-acpi/.
|
||||
|
||||
Sysfs device attributes are on the driver's sysfs attribute space,
|
||||
for 2.6.20 this is /sys/devices/platform/thinkpad-acpi/.
|
||||
|
||||
Driver version
|
||||
--------------
|
||||
|
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procfs: /proc/acpi/ibm/driver
|
||||
sysfs driver attribute: version
|
||||
|
||||
The driver name and version. No commands can be written to this file.
|
||||
|
||||
Hot keys -- /proc/acpi/ibm/hotkey
|
||||
---------------------------------
|
||||
Sysfs interface version
|
||||
-----------------------
|
||||
|
||||
sysfs driver attribute: interface_version
|
||||
|
||||
Version of the thinkpad-acpi sysfs interface, as an unsigned long
|
||||
(output in hex format: 0xAAAABBCC), where:
|
||||
AAAA - major revision
|
||||
BB - minor revision
|
||||
CC - bugfix revision
|
||||
|
||||
The sysfs interface version changelog for the driver can be found at the
|
||||
end of this document. Changes to the sysfs interface done by the kernel
|
||||
subsystems are not documented here, nor are they tracked by this
|
||||
attribute.
|
||||
|
||||
Hot keys
|
||||
--------
|
||||
|
||||
procfs: /proc/acpi/ibm/hotkey
|
||||
sysfs device attribute: hotkey/*
|
||||
|
||||
Without this driver, only the Fn-F4 key (sleep button) generates an
|
||||
ACPI event. With the driver loaded, the hotkey feature enabled and the
|
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|
|
@ -84,15 +152,6 @@ All labeled Fn-Fx key combinations generate distinct events. In
|
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addition, the lid microswitch and some docking station buttons may
|
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also generate such events.
|
||||
|
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The following commands can be written to this file:
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||||
|
||||
echo enable > /proc/acpi/ibm/hotkey -- enable the hot keys feature
|
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echo disable > /proc/acpi/ibm/hotkey -- disable the hot keys feature
|
||||
echo 0xffff > /proc/acpi/ibm/hotkey -- enable all possible hot keys
|
||||
echo 0x0000 > /proc/acpi/ibm/hotkey -- disable all possible hot keys
|
||||
... any other 4-hex-digit mask ...
|
||||
echo reset > /proc/acpi/ibm/hotkey -- restore the original mask
|
||||
|
||||
The bit mask allows some control over which hot keys generate ACPI
|
||||
events. Not all bits in the mask can be modified. Not all bits that
|
||||
can be modified do anything. Not all hot keys can be individually
|
||||
|
|
@ -124,15 +183,77 @@ buttons do not generate ACPI events even with this driver. They *can*
|
|||
be used through the "ThinkPad Buttons" utility, see
|
||||
http://www.nongnu.org/tpb/
|
||||
|
||||
Bluetooth -- /proc/acpi/ibm/bluetooth
|
||||
-------------------------------------
|
||||
procfs notes:
|
||||
|
||||
This feature shows the presence and current state of a Bluetooth
|
||||
device. If Bluetooth is installed, the following commands can be used:
|
||||
The following commands can be written to the /proc/acpi/ibm/hotkey file:
|
||||
|
||||
echo enable > /proc/acpi/ibm/hotkey -- enable the hot keys feature
|
||||
echo disable > /proc/acpi/ibm/hotkey -- disable the hot keys feature
|
||||
echo 0xffff > /proc/acpi/ibm/hotkey -- enable all possible hot keys
|
||||
echo 0x0000 > /proc/acpi/ibm/hotkey -- disable all possible hot keys
|
||||
... any other 4-hex-digit mask ...
|
||||
echo reset > /proc/acpi/ibm/hotkey -- restore the original mask
|
||||
|
||||
sysfs notes:
|
||||
|
||||
The hot keys attributes are in a hotkey/ subdirectory off the
|
||||
thinkpad device.
|
||||
|
||||
bios_enabled:
|
||||
Returns the status of the hot keys feature when
|
||||
thinkpad-acpi was loaded. Upon module unload, the hot
|
||||
key feature status will be restored to this value.
|
||||
|
||||
0: hot keys were disabled
|
||||
1: hot keys were enabled
|
||||
|
||||
bios_mask:
|
||||
Returns the hot keys mask when thinkpad-acpi was loaded.
|
||||
Upon module unload, the hot keys mask will be restored
|
||||
to this value.
|
||||
|
||||
enable:
|
||||
Enables/disables the hot keys feature, and reports
|
||||
current status of the hot keys feature.
|
||||
|
||||
0: disables the hot keys feature / feature disabled
|
||||
1: enables the hot keys feature / feature enabled
|
||||
|
||||
mask:
|
||||
bit mask to enable ACPI event generation for each hot
|
||||
key (see above). Returns the current status of the hot
|
||||
keys mask, and allows one to modify it.
|
||||
|
||||
|
||||
Bluetooth
|
||||
---------
|
||||
|
||||
procfs: /proc/acpi/ibm/bluetooth
|
||||
sysfs device attribute: bluetooth/enable
|
||||
|
||||
This feature shows the presence and current state of a ThinkPad
|
||||
Bluetooth device in the internal ThinkPad CDC slot.
|
||||
|
||||
Procfs notes:
|
||||
|
||||
If Bluetooth is installed, the following commands can be used:
|
||||
|
||||
echo enable > /proc/acpi/ibm/bluetooth
|
||||
echo disable > /proc/acpi/ibm/bluetooth
|
||||
|
||||
Sysfs notes:
|
||||
|
||||
If the Bluetooth CDC card is installed, it can be enabled /
|
||||
disabled through the "bluetooth/enable" thinkpad-acpi device
|
||||
attribute, and its current status can also be queried.
|
||||
|
||||
enable:
|
||||
0: disables Bluetooth / Bluetooth is disabled
|
||||
1: enables Bluetooth / Bluetooth is enabled.
|
||||
|
||||
Note: this interface will be probably be superseeded by the
|
||||
generic rfkill class.
|
||||
|
||||
Video output control -- /proc/acpi/ibm/video
|
||||
--------------------------------------------
|
||||
|
||||
|
|
@ -209,7 +330,7 @@ hot plugging of devices in the Linux ACPI framework. If the laptop was
|
|||
booted while not in the dock, the following message is shown in the
|
||||
logs:
|
||||
|
||||
Mar 17 01:42:34 aero kernel: ibm_acpi: dock device not present
|
||||
Mar 17 01:42:34 aero kernel: thinkpad_acpi: dock device not present
|
||||
|
||||
In this case, no dock-related events are generated but the dock and
|
||||
undock commands described below still work. They can be executed
|
||||
|
|
@ -269,7 +390,7 @@ This is due to the current lack of support for hot plugging of devices
|
|||
in the Linux ACPI framework. If the laptop was booted without the
|
||||
UltraBay, the following message is shown in the logs:
|
||||
|
||||
Mar 17 01:42:34 aero kernel: ibm_acpi: bay device not present
|
||||
Mar 17 01:42:34 aero kernel: thinkpad_acpi: bay device not present
|
||||
|
||||
In this case, no bay-related events are generated but the eject
|
||||
command described below still works. It can be executed manually or
|
||||
|
|
@ -313,23 +434,19 @@ supported. Use "eject2" instead of "eject" for the second bay.
|
|||
Note: the UltraBay eject support on the 600e/x, A22p and A3x is
|
||||
EXPERIMENTAL and may not work as expected. USE WITH CAUTION!
|
||||
|
||||
CMOS control -- /proc/acpi/ibm/cmos
|
||||
-----------------------------------
|
||||
CMOS control
|
||||
------------
|
||||
|
||||
procfs: /proc/acpi/ibm/cmos
|
||||
sysfs device attribute: cmos_command
|
||||
|
||||
This feature is used internally by the ACPI firmware to control the
|
||||
ThinkLight on most newer ThinkPad models. It may also control LCD
|
||||
brightness, sounds volume and more, but only on some models.
|
||||
|
||||
The commands are non-negative integer numbers:
|
||||
|
||||
echo 0 >/proc/acpi/ibm/cmos
|
||||
echo 1 >/proc/acpi/ibm/cmos
|
||||
echo 2 >/proc/acpi/ibm/cmos
|
||||
...
|
||||
|
||||
The range of valid numbers is 0 to 21, but not all have an effect and
|
||||
the behavior varies from model to model. Here is the behavior on the
|
||||
X40 (tpb is the ThinkPad Buttons utility):
|
||||
The range of valid cmos command numbers is 0 to 21, but not all have an
|
||||
effect and the behavior varies from model to model. Here is the behavior
|
||||
on the X40 (tpb is the ThinkPad Buttons utility):
|
||||
|
||||
0 - no effect but tpb reports "Volume down"
|
||||
1 - no effect but tpb reports "Volume up"
|
||||
|
|
@ -342,6 +459,9 @@ X40 (tpb is the ThinkPad Buttons utility):
|
|||
13 - ThinkLight off
|
||||
14 - no effect but tpb reports ThinkLight status change
|
||||
|
||||
The cmos command interface is prone to firmware split-brain problems, as
|
||||
in newer ThinkPads it is just a compatibility layer.
|
||||
|
||||
LED control -- /proc/acpi/ibm/led
|
||||
---------------------------------
|
||||
|
||||
|
|
@ -393,17 +513,17 @@ X40:
|
|||
16 - one medium-pitched beep repeating constantly, stop with 17
|
||||
17 - stop 16
|
||||
|
||||
Temperature sensors -- /proc/acpi/ibm/thermal
|
||||
---------------------------------------------
|
||||
Temperature sensors
|
||||
-------------------
|
||||
|
||||
procfs: /proc/acpi/ibm/thermal
|
||||
sysfs device attributes: (hwmon) temp*_input
|
||||
|
||||
Most ThinkPads include six or more separate temperature sensors but
|
||||
only expose the CPU temperature through the standard ACPI methods.
|
||||
This feature shows readings from up to eight different sensors on older
|
||||
ThinkPads, and it has experimental support for up to sixteen different
|
||||
sensors on newer ThinkPads. Readings from sensors that are not available
|
||||
return -128.
|
||||
|
||||
No commands can be written to this file.
|
||||
sensors on newer ThinkPads.
|
||||
|
||||
EXPERIMENTAL: The 16-sensors feature is marked EXPERIMENTAL because the
|
||||
implementation directly accesses hardware registers and may not work as
|
||||
|
|
@ -460,6 +580,20 @@ The A31 has a very atypical layout for the thermal sensors
|
|||
8: Bay Battery: secondary sensor
|
||||
|
||||
|
||||
Procfs notes:
|
||||
Readings from sensors that are not available return -128.
|
||||
No commands can be written to this file.
|
||||
|
||||
Sysfs notes:
|
||||
Sensors that are not available return the ENXIO error. This
|
||||
status may change at runtime, as there are hotplug thermal
|
||||
sensors, like those inside the batteries and docks.
|
||||
|
||||
thinkpad-acpi thermal sensors are reported through the hwmon
|
||||
subsystem, and follow all of the hwmon guidelines at
|
||||
Documentation/hwmon.
|
||||
|
||||
|
||||
EXPERIMENTAL: Embedded controller register dump -- /proc/acpi/ibm/ecdump
|
||||
------------------------------------------------------------------------
|
||||
|
||||
|
|
@ -472,7 +606,7 @@ This feature dumps the values of 256 embedded controller
|
|||
registers. Values which have changed since the last time the registers
|
||||
were dumped are marked with a star:
|
||||
|
||||
[root@x40 ibm-acpi]# cat /proc/acpi/ibm/ecdump
|
||||
[root@x40 ibm-acpi]# cat /proc/acpi/ibm/ecdump
|
||||
EC +00 +01 +02 +03 +04 +05 +06 +07 +08 +09 +0a +0b +0c +0d +0e +0f
|
||||
EC 0x00: a7 47 87 01 fe 96 00 08 01 00 cb 00 00 00 40 00
|
||||
EC 0x10: 00 00 ff ff f4 3c 87 09 01 ff 42 01 ff ff 0d 00
|
||||
|
|
@ -503,7 +637,7 @@ vary. The second ensures that the fan-related values do vary, since
|
|||
the fan speed fluctuates a bit. The third will (hopefully) mark the
|
||||
fan register with a star:
|
||||
|
||||
[root@x40 ibm-acpi]# cat /proc/acpi/ibm/ecdump
|
||||
[root@x40 ibm-acpi]# cat /proc/acpi/ibm/ecdump
|
||||
EC +00 +01 +02 +03 +04 +05 +06 +07 +08 +09 +0a +0b +0c +0d +0e +0f
|
||||
EC 0x00: a7 47 87 01 fe 96 00 08 01 00 cb 00 00 00 40 00
|
||||
EC 0x10: 00 00 ff ff f4 3c 87 09 01 ff 42 01 ff ff 0d 00
|
||||
|
|
@ -533,19 +667,59 @@ registers contain the current battery capacity, etc. If you experiment
|
|||
with this, do send me your results (including some complete dumps with
|
||||
a description of the conditions when they were taken.)
|
||||
|
||||
LCD brightness control -- /proc/acpi/ibm/brightness
|
||||
---------------------------------------------------
|
||||
LCD brightness control
|
||||
----------------------
|
||||
|
||||
procfs: /proc/acpi/ibm/brightness
|
||||
sysfs backlight device "thinkpad_screen"
|
||||
|
||||
This feature allows software control of the LCD brightness on ThinkPad
|
||||
models which don't have a hardware brightness slider. The available
|
||||
commands are:
|
||||
models which don't have a hardware brightness slider.
|
||||
|
||||
It has some limitations: the LCD backlight cannot be actually turned on or off
|
||||
by this interface, and in many ThinkPad models, the "dim while on battery"
|
||||
functionality will be enabled by the BIOS when this interface is used, and
|
||||
cannot be controlled.
|
||||
|
||||
The backlight control has eight levels, ranging from 0 to 7. Some of the
|
||||
levels may not be distinct.
|
||||
|
||||
Procfs notes:
|
||||
|
||||
The available commands are:
|
||||
|
||||
echo up >/proc/acpi/ibm/brightness
|
||||
echo down >/proc/acpi/ibm/brightness
|
||||
echo 'level <level>' >/proc/acpi/ibm/brightness
|
||||
|
||||
The <level> number range is 0 to 7, although not all of them may be
|
||||
distinct. The current brightness level is shown in the file.
|
||||
Sysfs notes:
|
||||
|
||||
The interface is implemented through the backlight sysfs class, which is poorly
|
||||
documented at this time.
|
||||
|
||||
Locate the thinkpad_screen device under /sys/class/backlight, and inside it
|
||||
there will be the following attributes:
|
||||
|
||||
max_brightness:
|
||||
Reads the maximum brightness the hardware can be set to.
|
||||
The minimum is always zero.
|
||||
|
||||
actual_brightness:
|
||||
Reads what brightness the screen is set to at this instant.
|
||||
|
||||
brightness:
|
||||
Writes request the driver to change brightness to the given
|
||||
value. Reads will tell you what brightness the driver is trying
|
||||
to set the display to when "power" is set to zero and the display
|
||||
has not been dimmed by a kernel power management event.
|
||||
|
||||
power:
|
||||
power management mode, where 0 is "display on", and 1 to 3 will
|
||||
dim the display backlight to brightness level 0 because
|
||||
thinkpad-acpi cannot really turn the backlight off. Kernel
|
||||
power management events can temporarily increase the current
|
||||
power management level, i.e. they can dim the display.
|
||||
|
||||
|
||||
Volume control -- /proc/acpi/ibm/volume
|
||||
---------------------------------------
|
||||
|
|
@ -563,41 +737,42 @@ distinct. The unmute the volume after the mute command, use either the
|
|||
up or down command (the level command will not unmute the volume).
|
||||
The current volume level and mute state is shown in the file.
|
||||
|
||||
EXPERIMENTAL: fan speed, fan enable/disable -- /proc/acpi/ibm/fan
|
||||
-----------------------------------------------------------------
|
||||
Fan control and monitoring: fan speed, fan enable/disable
|
||||
---------------------------------------------------------
|
||||
|
||||
This feature is marked EXPERIMENTAL because the implementation
|
||||
directly accesses hardware registers and may not work as expected. USE
|
||||
WITH CAUTION! To use this feature, you need to supply the
|
||||
experimental=1 parameter when loading the module.
|
||||
procfs: /proc/acpi/ibm/fan
|
||||
sysfs device attributes: (hwmon) fan_input, pwm1, pwm1_enable
|
||||
|
||||
NOTE NOTE NOTE: fan control operations are disabled by default for
|
||||
safety reasons. To enable them, the module parameter "fan_control=1"
|
||||
must be given to thinkpad-acpi.
|
||||
|
||||
This feature attempts to show the current fan speed, control mode and
|
||||
other fan data that might be available. The speed is read directly
|
||||
from the hardware registers of the embedded controller. This is known
|
||||
to work on later R, T and X series ThinkPads but may show a bogus
|
||||
to work on later R, T, X and Z series ThinkPads but may show a bogus
|
||||
value on other models.
|
||||
|
||||
Most ThinkPad fans work in "levels". Level 0 stops the fan. The higher
|
||||
the level, the higher the fan speed, although adjacent levels often map
|
||||
to the same fan speed. 7 is the highest level, where the fan reaches
|
||||
the maximum recommended speed. Level "auto" means the EC changes the
|
||||
fan level according to some internal algorithm, usually based on
|
||||
readings from the thermal sensors. Level "disengaged" means the EC
|
||||
disables the speed-locked closed-loop fan control, and drives the fan as
|
||||
fast as it can go, which might exceed hardware limits, so use this level
|
||||
with caution.
|
||||
Fan levels:
|
||||
|
||||
The fan usually ramps up or down slowly from one speed to another,
|
||||
and it is normal for the EC to take several seconds to react to fan
|
||||
commands.
|
||||
Most ThinkPad fans work in "levels" at the firmware interface. Level 0
|
||||
stops the fan. The higher the level, the higher the fan speed, although
|
||||
adjacent levels often map to the same fan speed. 7 is the highest
|
||||
level, where the fan reaches the maximum recommended speed.
|
||||
|
||||
The fan may be enabled or disabled with the following commands:
|
||||
Level "auto" means the EC changes the fan level according to some
|
||||
internal algorithm, usually based on readings from the thermal sensors.
|
||||
|
||||
echo enable >/proc/acpi/ibm/fan
|
||||
echo disable >/proc/acpi/ibm/fan
|
||||
There is also a "full-speed" level, also known as "disengaged" level.
|
||||
In this level, the EC disables the speed-locked closed-loop fan control,
|
||||
and drives the fan as fast as it can go, which might exceed hardware
|
||||
limits, so use this level with caution.
|
||||
|
||||
Placing a fan on level 0 is the same as disabling it. Enabling a fan
|
||||
will try to place it in a safe level if it is too slow or disabled.
|
||||
The fan usually ramps up or down slowly from one speed to another, and
|
||||
it is normal for the EC to take several seconds to react to fan
|
||||
commands. The full-speed level may take up to two minutes to ramp up to
|
||||
maximum speed, and in some ThinkPads, the tachometer readings go stale
|
||||
while the EC is transitioning to the full-speed level.
|
||||
|
||||
WARNING WARNING WARNING: do not leave the fan disabled unless you are
|
||||
monitoring all of the temperature sensor readings and you are ready to
|
||||
|
|
@ -615,46 +790,146 @@ fan is turned off when the CPU temperature drops to 49 degrees and the
|
|||
HDD temperature drops to 41 degrees. These thresholds cannot
|
||||
currently be controlled.
|
||||
|
||||
The fan level can be controlled with the command:
|
||||
|
||||
echo 'level <level>' > /proc/acpi/ibm/thermal
|
||||
|
||||
Where <level> is an integer from 0 to 7, or one of the words "auto"
|
||||
or "disengaged" (without the quotes). Not all ThinkPads support the
|
||||
"auto" and "disengaged" levels.
|
||||
|
||||
On the X31 and X40 (and ONLY on those models), the fan speed can be
|
||||
controlled to a certain degree. Once the fan is running, it can be
|
||||
forced to run faster or slower with the following command:
|
||||
|
||||
echo 'speed <speed>' > /proc/acpi/ibm/thermal
|
||||
|
||||
The sustainable range of fan speeds on the X40 appears to be from
|
||||
about 3700 to about 7350. Values outside this range either do not have
|
||||
any effect or the fan speed eventually settles somewhere in that
|
||||
range. The fan cannot be stopped or started with this command.
|
||||
|
||||
The ThinkPad's ACPI DSDT code will reprogram the fan on its own when
|
||||
certain conditions are met. It will override any fan programming done
|
||||
through ibm-acpi.
|
||||
through thinkpad-acpi.
|
||||
|
||||
EXPERIMENTAL: WAN -- /proc/acpi/ibm/wan
|
||||
---------------------------------------
|
||||
The thinkpad-acpi kernel driver can be programmed to revert the fan
|
||||
level to a safe setting if userspace does not issue one of the procfs
|
||||
fan commands: "enable", "disable", "level" or "watchdog", or if there
|
||||
are no writes to pwm1_enable (or to pwm1 *if and only if* pwm1_enable is
|
||||
set to 1, manual mode) within a configurable amount of time of up to
|
||||
120 seconds. This functionality is called fan safety watchdog.
|
||||
|
||||
Note that the watchdog timer stops after it enables the fan. It will be
|
||||
rearmed again automatically (using the same interval) when one of the
|
||||
above mentioned fan commands is received. The fan watchdog is,
|
||||
therefore, not suitable to protect against fan mode changes made through
|
||||
means other than the "enable", "disable", and "level" procfs fan
|
||||
commands, or the hwmon fan control sysfs interface.
|
||||
|
||||
Procfs notes:
|
||||
|
||||
The fan may be enabled or disabled with the following commands:
|
||||
|
||||
echo enable >/proc/acpi/ibm/fan
|
||||
echo disable >/proc/acpi/ibm/fan
|
||||
|
||||
Placing a fan on level 0 is the same as disabling it. Enabling a fan
|
||||
will try to place it in a safe level if it is too slow or disabled.
|
||||
|
||||
The fan level can be controlled with the command:
|
||||
|
||||
echo 'level <level>' > /proc/acpi/ibm/fan
|
||||
|
||||
Where <level> is an integer from 0 to 7, or one of the words "auto" or
|
||||
"full-speed" (without the quotes). Not all ThinkPads support the "auto"
|
||||
and "full-speed" levels. The driver accepts "disengaged" as an alias for
|
||||
"full-speed", and reports it as "disengaged" for backwards
|
||||
compatibility.
|
||||
|
||||
On the X31 and X40 (and ONLY on those models), the fan speed can be
|
||||
controlled to a certain degree. Once the fan is running, it can be
|
||||
forced to run faster or slower with the following command:
|
||||
|
||||
echo 'speed <speed>' > /proc/acpi/ibm/fan
|
||||
|
||||
The sustainable range of fan speeds on the X40 appears to be from about
|
||||
3700 to about 7350. Values outside this range either do not have any
|
||||
effect or the fan speed eventually settles somewhere in that range. The
|
||||
fan cannot be stopped or started with this command. This functionality
|
||||
is incomplete, and not available through the sysfs interface.
|
||||
|
||||
To program the safety watchdog, use the "watchdog" command.
|
||||
|
||||
echo 'watchdog <interval in seconds>' > /proc/acpi/ibm/fan
|
||||
|
||||
If you want to disable the watchdog, use 0 as the interval.
|
||||
|
||||
Sysfs notes:
|
||||
|
||||
The sysfs interface follows the hwmon subsystem guidelines for the most
|
||||
part, and the exception is the fan safety watchdog.
|
||||
|
||||
Writes to any of the sysfs attributes may return the EINVAL error if
|
||||
that operation is not supported in a given ThinkPad or if the parameter
|
||||
is out-of-bounds, and EPERM if it is forbidden. They may also return
|
||||
EINTR (interrupted system call), and EIO (I/O error while trying to talk
|
||||
to the firmware).
|
||||
|
||||
Features not yet implemented by the driver return ENOSYS.
|
||||
|
||||
hwmon device attribute pwm1_enable:
|
||||
0: PWM offline (fan is set to full-speed mode)
|
||||
1: Manual PWM control (use pwm1 to set fan level)
|
||||
2: Hardware PWM control (EC "auto" mode)
|
||||
3: reserved (Software PWM control, not implemented yet)
|
||||
|
||||
Modes 0 and 2 are not supported by all ThinkPads, and the
|
||||
driver is not always able to detect this. If it does know a
|
||||
mode is unsupported, it will return -EINVAL.
|
||||
|
||||
hwmon device attribute pwm1:
|
||||
Fan level, scaled from the firmware values of 0-7 to the hwmon
|
||||
scale of 0-255. 0 means fan stopped, 255 means highest normal
|
||||
speed (level 7).
|
||||
|
||||
This attribute only commands the fan if pmw1_enable is set to 1
|
||||
(manual PWM control).
|
||||
|
||||
hwmon device attribute fan1_input:
|
||||
Fan tachometer reading, in RPM. May go stale on certain
|
||||
ThinkPads while the EC transitions the PWM to offline mode,
|
||||
which can take up to two minutes. May return rubbish on older
|
||||
ThinkPads.
|
||||
|
||||
driver attribute fan_watchdog:
|
||||
Fan safety watchdog timer interval, in seconds. Minimum is
|
||||
1 second, maximum is 120 seconds. 0 disables the watchdog.
|
||||
|
||||
To stop the fan: set pwm1 to zero, and pwm1_enable to 1.
|
||||
|
||||
To start the fan in a safe mode: set pwm1_enable to 2. If that fails
|
||||
with EINVAL, try to set pwm1_enable to 1 and pwm1 to at least 128 (255
|
||||
would be the safest choice, though).
|
||||
|
||||
|
||||
EXPERIMENTAL: WAN
|
||||
-----------------
|
||||
|
||||
procfs: /proc/acpi/ibm/wan
|
||||
sysfs device attribute: wwan/enable
|
||||
|
||||
This feature is marked EXPERIMENTAL because the implementation
|
||||
directly accesses hardware registers and may not work as expected. USE
|
||||
WITH CAUTION! To use this feature, you need to supply the
|
||||
experimental=1 parameter when loading the module.
|
||||
|
||||
This feature shows the presence and current state of a WAN (Sierra
|
||||
Wireless EV-DO) device. If WAN is installed, the following commands can
|
||||
be used:
|
||||
This feature shows the presence and current state of a W-WAN (Sierra
|
||||
Wireless EV-DO) device.
|
||||
|
||||
It was tested on a Lenovo Thinkpad X60. It should probably work on other
|
||||
Thinkpad models which come with this module installed.
|
||||
|
||||
Procfs notes:
|
||||
|
||||
If the W-WAN card is installed, the following commands can be used:
|
||||
|
||||
echo enable > /proc/acpi/ibm/wan
|
||||
echo disable > /proc/acpi/ibm/wan
|
||||
|
||||
It was tested on a Lenovo Thinkpad X60. It should probably work on other
|
||||
Thinkpad models which come with this module installed.
|
||||
Sysfs notes:
|
||||
|
||||
If the W-WAN card is installed, it can be enabled /
|
||||
disabled through the "wwan/enable" thinkpad-acpi device
|
||||
attribute, and its current status can also be queried.
|
||||
|
||||
enable:
|
||||
0: disables WWAN card / WWAN card is disabled
|
||||
1: enables WWAN card / WWAN card is enabled.
|
||||
|
||||
Note: this interface will be probably be superseeded by the
|
||||
generic rfkill class.
|
||||
|
||||
Multiple Commands, Module Parameters
|
||||
------------------------------------
|
||||
|
|
@ -665,64 +940,42 @@ separating them with commas, for example:
|
|||
echo enable,0xffff > /proc/acpi/ibm/hotkey
|
||||
echo lcd_disable,crt_enable > /proc/acpi/ibm/video
|
||||
|
||||
Commands can also be specified when loading the ibm_acpi module, for
|
||||
example:
|
||||
Commands can also be specified when loading the thinkpad-acpi module,
|
||||
for example:
|
||||
|
||||
modprobe ibm_acpi hotkey=enable,0xffff video=auto_disable
|
||||
modprobe thinkpad_acpi hotkey=enable,0xffff video=auto_disable
|
||||
|
||||
The ibm-acpi kernel driver can be programmed to revert the fan level
|
||||
to a safe setting if userspace does not issue one of the fan commands:
|
||||
"enable", "disable", "level" or "watchdog" within a configurable
|
||||
ammount of time. To do this, use the "watchdog" command.
|
||||
Enabling debugging output
|
||||
-------------------------
|
||||
|
||||
echo 'watchdog <interval>' > /proc/acpi/ibm/fan
|
||||
The module takes a debug paramater which can be used to selectively
|
||||
enable various classes of debugging output, for example:
|
||||
|
||||
Interval is the ammount of time in seconds to wait for one of the
|
||||
above mentioned fan commands before reseting the fan level to a safe
|
||||
one. If set to zero, the watchdog is disabled (default). When the
|
||||
watchdog timer runs out, it does the exact equivalent of the "enable"
|
||||
fan command.
|
||||
modprobe ibm_acpi debug=0xffff
|
||||
|
||||
Note that the watchdog timer stops after it enables the fan. It will
|
||||
be rearmed again automatically (using the same interval) when one of
|
||||
the above mentioned fan commands is received. The fan watchdog is,
|
||||
therefore, not suitable to protect against fan mode changes made
|
||||
through means other than the "enable", "disable", and "level" fan
|
||||
commands.
|
||||
will enable all debugging output classes. It takes a bitmask, so
|
||||
to enable more than one output class, just add their values.
|
||||
|
||||
Debug bitmask Description
|
||||
0x0001 Initialization and probing
|
||||
0x0002 Removal
|
||||
|
||||
There is also a kernel build option to enable more debugging
|
||||
information, which may be necessary to debug driver problems.
|
||||
|
||||
The level of debugging information output by the driver can be changed
|
||||
at runtime through sysfs, using the driver attribute debug_level. The
|
||||
attribute takes the same bitmask as the debug module parameter above.
|
||||
|
||||
Force loading of module
|
||||
-----------------------
|
||||
|
||||
If thinkpad-acpi refuses to detect your ThinkPad, you can try to specify
|
||||
the module parameter force_load=1. Regardless of whether this works or
|
||||
not, please contact ibm-acpi-devel@lists.sourceforge.net with a report.
|
||||
|
||||
|
||||
Example Configuration
|
||||
---------------------
|
||||
Sysfs interface changelog:
|
||||
|
||||
The ACPI support in the kernel is intended to be used in conjunction
|
||||
with a user-space daemon, acpid. The configuration files for this
|
||||
daemon control what actions are taken in response to various ACPI
|
||||
events. An example set of configuration files are included in the
|
||||
config/ directory of the tarball package available on the web
|
||||
site. Note that these are provided for illustration purposes only and
|
||||
may need to be adapted to your particular setup.
|
||||
|
||||
The following utility scripts are used by the example action
|
||||
scripts (included with ibm-acpi for completeness):
|
||||
|
||||
/usr/local/sbin/idectl -- from the hdparm source distribution,
|
||||
see http://www.ibiblio.org/pub/Linux/system/hardware
|
||||
/usr/local/sbin/laptop_mode -- from the Linux kernel source
|
||||
distribution, see Documentation/laptop-mode.txt
|
||||
/sbin/service -- comes with Redhat/Fedora distributions
|
||||
/usr/sbin/hibernate -- from the Software Suspend 2 distribution,
|
||||
see http://softwaresuspend.berlios.de/
|
||||
|
||||
Toan T Nguyen <ntt@physics.ucla.edu> notes that Suse uses the
|
||||
powersave program to suspend ('powersave --suspend-to-ram') or
|
||||
hibernate ('powersave --suspend-to-disk'). This means that the
|
||||
hibernate script is not needed on that distribution.
|
||||
|
||||
Henrik Brix Andersen <brix@gentoo.org> has written a Gentoo ACPI event
|
||||
handler script for the X31. You can get the latest version from
|
||||
http://dev.gentoo.org/~brix/files/x31.sh
|
||||
|
||||
David Schweikert <dws@ee.eth.ch> has written an alternative blank.sh
|
||||
script which works on Debian systems. This scripts has now been
|
||||
extended to also work on Fedora systems and included as the default
|
||||
blank.sh in the distribution.
|
||||
0x000100: Initial sysfs support, as a single platform driver and
|
||||
device.
|
||||
18
MAINTAINERS
18
MAINTAINERS
|
|
@ -1632,15 +1632,6 @@ W: http://www.ia64-linux.org/
|
|||
T: git kernel.org:/pub/scm/linux/kernel/git/aegl/linux-2.6.git
|
||||
S: Maintained
|
||||
|
||||
IBM ACPI EXTRAS DRIVER
|
||||
P: Henrique de Moraes Holschuh
|
||||
M: ibm-acpi@hmh.eng.br
|
||||
L: ibm-acpi-devel@lists.sourceforge.net
|
||||
W: http://ibm-acpi.sourceforge.net
|
||||
W: http://thinkwiki.org/wiki/Ibm-acpi
|
||||
T: git repo.or.cz/linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git
|
||||
S: Maintained
|
||||
|
||||
SN-IA64 (Itanium) SUB-PLATFORM
|
||||
P: Jes Sorensen
|
||||
M: jes@sgi.com
|
||||
|
|
@ -3121,6 +3112,15 @@ P: Chris Zankel
|
|||
M: chris@zankel.net
|
||||
S: Maintained
|
||||
|
||||
THINKPAD ACPI EXTRAS DRIVER
|
||||
P: Henrique de Moraes Holschuh
|
||||
M: ibm-acpi@hmh.eng.br
|
||||
L: ibm-acpi-devel@lists.sourceforge.net
|
||||
W: http://ibm-acpi.sourceforge.net
|
||||
W: http://thinkwiki.org/wiki/Ibm-acpi
|
||||
T: git repo.or.cz/linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git
|
||||
S: Maintained
|
||||
|
||||
UltraSPARC (sparc64):
|
||||
P: David S. Miller
|
||||
M: davem@davemloft.net
|
||||
|
|
|
|||
|
|
@ -218,43 +218,6 @@ config ACPI_ASUS
|
|||
NOTE: This driver is deprecated and will probably be removed soon,
|
||||
use asus-laptop instead.
|
||||
|
||||
config ACPI_IBM
|
||||
tristate "IBM ThinkPad Laptop Extras"
|
||||
depends on X86
|
||||
select BACKLIGHT_CLASS_DEVICE
|
||||
---help---
|
||||
This is a Linux ACPI driver for the IBM ThinkPad laptops. It adds
|
||||
support for Fn-Fx key combinations, Bluetooth control, video
|
||||
output switching, ThinkLight control, UltraBay eject and more.
|
||||
For more information about this driver see <file:Documentation/ibm-acpi.txt>
|
||||
and <http://ibm-acpi.sf.net/> .
|
||||
|
||||
If you have an IBM ThinkPad laptop, say Y or M here.
|
||||
|
||||
config ACPI_IBM_DOCK
|
||||
bool "Legacy Docking Station Support"
|
||||
depends on ACPI_IBM
|
||||
depends on ACPI_DOCK=n
|
||||
default n
|
||||
---help---
|
||||
Allows the ibm_acpi driver to handle docking station events.
|
||||
This support is obsoleted by CONFIG_HOTPLUG_PCI_ACPI. It will
|
||||
allow locking and removing the laptop from the docking station,
|
||||
but will not properly connect PCI devices.
|
||||
|
||||
If you are not sure, say N here.
|
||||
|
||||
config ACPI_IBM_BAY
|
||||
bool "Legacy Removable Bay Support"
|
||||
depends on ACPI_IBM
|
||||
default y
|
||||
---help---
|
||||
Allows the ibm_acpi driver to handle removable bays. It will allow
|
||||
disabling the device in the bay, and also generate notifications when
|
||||
the bay lever is ejected or inserted.
|
||||
|
||||
If you are not sure, say Y here.
|
||||
|
||||
config ACPI_TOSHIBA
|
||||
tristate "Toshiba Laptop Extras"
|
||||
depends on X86
|
||||
|
|
|
|||
|
|
@ -55,7 +55,6 @@ obj-$(CONFIG_ACPI_SYSTEM) += system.o event.o
|
|||
obj-$(CONFIG_ACPI_DEBUG) += debug.o
|
||||
obj-$(CONFIG_ACPI_NUMA) += numa.o
|
||||
obj-$(CONFIG_ACPI_ASUS) += asus_acpi.o
|
||||
obj-$(CONFIG_ACPI_IBM) += ibm_acpi.o
|
||||
obj-$(CONFIG_ACPI_TOSHIBA) += toshiba_acpi.o
|
||||
obj-$(CONFIG_ACPI_HOTPLUG_MEMORY) += acpi_memhotplug.o
|
||||
obj-y += cm_sbs.o
|
||||
|
|
|
|||
File diff suppressed because it is too large
Load Diff
|
|
@ -127,4 +127,55 @@ config SONY_LAPTOP_OLD
|
|||
---help---
|
||||
Build the sonypi driver compatibility code into the sony-laptop driver.
|
||||
|
||||
config THINKPAD_ACPI
|
||||
tristate "ThinkPad ACPI Laptop Extras"
|
||||
depends on X86 && ACPI
|
||||
select BACKLIGHT_CLASS_DEVICE
|
||||
select HWMON
|
||||
---help---
|
||||
This is a driver for the IBM and Lenovo ThinkPad laptops. It adds
|
||||
support for Fn-Fx key combinations, Bluetooth control, video
|
||||
output switching, ThinkLight control, UltraBay eject and more.
|
||||
For more information about this driver see
|
||||
<file:Documentation/thinkpad-acpi.txt> and <http://ibm-acpi.sf.net/> .
|
||||
|
||||
This driver was formely known as ibm-acpi.
|
||||
|
||||
If you have an IBM or Lenovo ThinkPad laptop, say Y or M here.
|
||||
|
||||
config THINKPAD_ACPI_DEBUG
|
||||
bool "Verbose debug mode"
|
||||
depends on THINKPAD_ACPI
|
||||
default n
|
||||
---help---
|
||||
Enables extra debugging information, at the expense of a slightly
|
||||
increase in driver size.
|
||||
|
||||
If you are not sure, say N here.
|
||||
|
||||
config THINKPAD_ACPI_DOCK
|
||||
bool "Legacy Docking Station Support"
|
||||
depends on THINKPAD_ACPI
|
||||
depends on ACPI_DOCK=n
|
||||
default n
|
||||
---help---
|
||||
Allows the thinkpad_acpi driver to handle docking station events.
|
||||
This support was made obsolete by the generic ACPI docking station
|
||||
support (CONFIG_ACPI_DOCK). It will allow locking and removing the
|
||||
laptop from the docking station, but will not properly connect PCI
|
||||
devices.
|
||||
|
||||
If you are not sure, say N here.
|
||||
|
||||
config THINKPAD_ACPI_BAY
|
||||
bool "Legacy Removable Bay Support"
|
||||
depends on THINKPAD_ACPI
|
||||
default y
|
||||
---help---
|
||||
Allows the thinkpad_acpi driver to handle removable bays. It will
|
||||
eletrically disable the device in the bay, and also generate
|
||||
notifications when the bay lever is ejected or inserted.
|
||||
|
||||
If you are not sure, say Y here.
|
||||
|
||||
endmenu
|
||||
|
|
|
|||
|
|
@ -12,3 +12,4 @@ obj-$(CONFIG_TIFM_CORE) += tifm_core.o
|
|||
obj-$(CONFIG_TIFM_7XX1) += tifm_7xx1.o
|
||||
obj-$(CONFIG_SGI_IOC4) += ioc4.o
|
||||
obj-$(CONFIG_SONY_LAPTOP) += sony-laptop.o
|
||||
obj-$(CONFIG_THINKPAD_ACPI) += thinkpad_acpi.o
|
||||
|
|
|
|||
File diff suppressed because it is too large
Load Diff
|
|
@ -0,0 +1,572 @@
|
|||
/*
|
||||
* thinkpad_acpi.h - ThinkPad ACPI Extras
|
||||
*
|
||||
*
|
||||
* Copyright (C) 2004-2005 Borislav Deianov <borislav@users.sf.net>
|
||||
* Copyright (C) 2006-2007 Henrique de Moraes Holschuh <hmh@hmh.eng.br>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
||||
* 02110-1301, USA.
|
||||
*/
|
||||
|
||||
#ifndef __THINKPAD_ACPI_H__
|
||||
#define __THINKPAD_ACPI_H__
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/types.h>
|
||||
#include <linux/string.h>
|
||||
#include <linux/list.h>
|
||||
#include <linux/mutex.h>
|
||||
|
||||
#include <linux/proc_fs.h>
|
||||
#include <linux/sysfs.h>
|
||||
#include <linux/backlight.h>
|
||||
#include <linux/fb.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/hwmon.h>
|
||||
#include <linux/hwmon-sysfs.h>
|
||||
#include <asm/uaccess.h>
|
||||
|
||||
#include <linux/dmi.h>
|
||||
#include <linux/jiffies.h>
|
||||
#include <linux/workqueue.h>
|
||||
|
||||
#include <acpi/acpi_drivers.h>
|
||||
#include <acpi/acnamesp.h>
|
||||
|
||||
|
||||
/****************************************************************************
|
||||
* Main driver
|
||||
*/
|
||||
|
||||
#define IBM_NAME "thinkpad"
|
||||
#define IBM_DESC "ThinkPad ACPI Extras"
|
||||
#define IBM_FILE "thinkpad_acpi"
|
||||
#define IBM_URL "http://ibm-acpi.sf.net/"
|
||||
#define IBM_MAIL "ibm-acpi-devel@lists.sourceforge.net"
|
||||
|
||||
#define IBM_PROC_DIR "ibm"
|
||||
#define IBM_ACPI_EVENT_PREFIX "ibm"
|
||||
#define IBM_DRVR_NAME IBM_FILE
|
||||
|
||||
#define IBM_LOG IBM_FILE ": "
|
||||
#define IBM_ERR KERN_ERR IBM_LOG
|
||||
#define IBM_NOTICE KERN_NOTICE IBM_LOG
|
||||
#define IBM_INFO KERN_INFO IBM_LOG
|
||||
#define IBM_DEBUG KERN_DEBUG IBM_LOG
|
||||
|
||||
#define IBM_MAX_ACPI_ARGS 3
|
||||
|
||||
/* ThinkPad CMOS commands */
|
||||
#define TP_CMOS_VOLUME_DOWN 0
|
||||
#define TP_CMOS_VOLUME_UP 1
|
||||
#define TP_CMOS_VOLUME_MUTE 2
|
||||
#define TP_CMOS_BRIGHTNESS_UP 4
|
||||
#define TP_CMOS_BRIGHTNESS_DOWN 5
|
||||
|
||||
#define onoff(status,bit) ((status) & (1 << (bit)) ? "on" : "off")
|
||||
#define enabled(status,bit) ((status) & (1 << (bit)) ? "enabled" : "disabled")
|
||||
#define strlencmp(a,b) (strncmp((a), (b), strlen(b)))
|
||||
|
||||
/* Debugging */
|
||||
#define TPACPI_DBG_ALL 0xffff
|
||||
#define TPACPI_DBG_ALL 0xffff
|
||||
#define TPACPI_DBG_INIT 0x0001
|
||||
#define TPACPI_DBG_EXIT 0x0002
|
||||
#define dbg_printk(a_dbg_level, format, arg...) \
|
||||
do { if (dbg_level & a_dbg_level) \
|
||||
printk(IBM_DEBUG "%s: " format, __func__ , ## arg); } while (0)
|
||||
#ifdef CONFIG_THINKPAD_ACPI_DEBUG
|
||||
#define vdbg_printk(a_dbg_level, format, arg...) \
|
||||
dbg_printk(a_dbg_level, format, ## arg)
|
||||
static const char *str_supported(int is_supported);
|
||||
#else
|
||||
#define vdbg_printk(a_dbg_level, format, arg...)
|
||||
#endif
|
||||
|
||||
/* ACPI HIDs */
|
||||
#define IBM_HKEY_HID "IBM0068"
|
||||
#define IBM_PCI_HID "PNP0A03"
|
||||
|
||||
/* ACPI helpers */
|
||||
static int __must_check acpi_evalf(acpi_handle handle,
|
||||
void *res, char *method, char *fmt, ...);
|
||||
static int __must_check acpi_ec_read(int i, u8 * p);
|
||||
static int __must_check acpi_ec_write(int i, u8 v);
|
||||
static int __must_check _sta(acpi_handle handle);
|
||||
|
||||
/* ACPI handles */
|
||||
static acpi_handle root_handle; /* root namespace */
|
||||
static acpi_handle ec_handle; /* EC */
|
||||
static acpi_handle ecrd_handle, ecwr_handle; /* 570 EC access */
|
||||
static acpi_handle cmos_handle, hkey_handle; /* basic thinkpad handles */
|
||||
|
||||
static void drv_acpi_handle_init(char *name,
|
||||
acpi_handle *handle, acpi_handle parent,
|
||||
char **paths, int num_paths, char **path);
|
||||
#define IBM_ACPIHANDLE_INIT(object) \
|
||||
drv_acpi_handle_init(#object, &object##_handle, *object##_parent, \
|
||||
object##_paths, ARRAY_SIZE(object##_paths), &object##_path)
|
||||
|
||||
/* ThinkPad ACPI helpers */
|
||||
static int issue_thinkpad_cmos_command(int cmos_cmd);
|
||||
|
||||
/* procfs support */
|
||||
static struct proc_dir_entry *proc_dir;
|
||||
|
||||
/* procfs helpers */
|
||||
static int dispatch_procfs_read(char *page, char **start, off_t off,
|
||||
int count, int *eof, void *data);
|
||||
static int dispatch_procfs_write(struct file *file,
|
||||
const char __user * userbuf,
|
||||
unsigned long count, void *data);
|
||||
static char *next_cmd(char **cmds);
|
||||
|
||||
/* sysfs support */
|
||||
struct attribute_set {
|
||||
unsigned int members, max_members;
|
||||
struct attribute_group group;
|
||||
};
|
||||
|
||||
static struct attribute_set *create_attr_set(unsigned int max_members,
|
||||
const char* name);
|
||||
#define destroy_attr_set(_set) \
|
||||
kfree(_set);
|
||||
static int add_to_attr_set(struct attribute_set* s, struct attribute *attr);
|
||||
static int add_many_to_attr_set(struct attribute_set* s,
|
||||
struct attribute **attr,
|
||||
unsigned int count);
|
||||
#define register_attr_set_with_sysfs(_attr_set, _kobj) \
|
||||
sysfs_create_group(_kobj, &_attr_set->group)
|
||||
static void delete_attr_set(struct attribute_set* s, struct kobject *kobj);
|
||||
|
||||
static int parse_strtoul(const char *buf, unsigned long max,
|
||||
unsigned long *value);
|
||||
|
||||
/* Device model */
|
||||
static struct platform_device *tpacpi_pdev;
|
||||
static struct class_device *tpacpi_hwmon;
|
||||
static struct platform_driver tpacpi_pdriver;
|
||||
static int tpacpi_create_driver_attributes(struct device_driver *drv);
|
||||
static void tpacpi_remove_driver_attributes(struct device_driver *drv);
|
||||
|
||||
/* Module */
|
||||
static int experimental;
|
||||
static u32 dbg_level;
|
||||
static int force_load;
|
||||
static char *ibm_thinkpad_ec_found;
|
||||
|
||||
static char* check_dmi_for_ec(void);
|
||||
static int thinkpad_acpi_module_init(void);
|
||||
static void thinkpad_acpi_module_exit(void);
|
||||
|
||||
|
||||
/****************************************************************************
|
||||
* Subdrivers
|
||||
*/
|
||||
|
||||
struct ibm_struct;
|
||||
|
||||
struct tp_acpi_drv_struct {
|
||||
char *hid;
|
||||
struct acpi_driver *driver;
|
||||
|
||||
void (*notify) (struct ibm_struct *, u32);
|
||||
acpi_handle *handle;
|
||||
u32 type;
|
||||
struct acpi_device *device;
|
||||
};
|
||||
|
||||
struct ibm_struct {
|
||||
char *name;
|
||||
|
||||
int (*read) (char *);
|
||||
int (*write) (char *);
|
||||
void (*exit) (void);
|
||||
|
||||
struct list_head all_drivers;
|
||||
|
||||
struct tp_acpi_drv_struct *acpi;
|
||||
|
||||
struct {
|
||||
u8 acpi_driver_registered:1;
|
||||
u8 acpi_notify_installed:1;
|
||||
u8 proc_created:1;
|
||||
u8 init_called:1;
|
||||
u8 experimental:1;
|
||||
} flags;
|
||||
};
|
||||
|
||||
struct ibm_init_struct {
|
||||
char param[32];
|
||||
|
||||
int (*init) (struct ibm_init_struct *);
|
||||
struct ibm_struct *data;
|
||||
};
|
||||
|
||||
static struct {
|
||||
#ifdef CONFIG_THINKPAD_ACPI_BAY
|
||||
u16 bay_status:1;
|
||||
u16 bay_eject:1;
|
||||
u16 bay_status2:1;
|
||||
u16 bay_eject2:1;
|
||||
#endif
|
||||
u16 bluetooth:1;
|
||||
u16 hotkey:1;
|
||||
u16 hotkey_mask:1;
|
||||
u16 light:1;
|
||||
u16 light_status:1;
|
||||
u16 wan:1;
|
||||
u16 fan_ctrl_status_undef:1;
|
||||
} tp_features;
|
||||
|
||||
static struct list_head tpacpi_all_drivers;
|
||||
|
||||
static struct ibm_init_struct ibms_init[];
|
||||
static int set_ibm_param(const char *val, struct kernel_param *kp);
|
||||
static int ibm_init(struct ibm_init_struct *iibm);
|
||||
static void ibm_exit(struct ibm_struct *ibm);
|
||||
|
||||
|
||||
/*
|
||||
* procfs master subdriver
|
||||
*/
|
||||
static int thinkpad_acpi_driver_init(struct ibm_init_struct *iibm);
|
||||
static int thinkpad_acpi_driver_read(char *p);
|
||||
|
||||
|
||||
/*
|
||||
* Bay subdriver
|
||||
*/
|
||||
|
||||
#ifdef CONFIG_THINKPAD_ACPI_BAY
|
||||
static acpi_handle bay_handle, bay_ej_handle;
|
||||
static acpi_handle bay2_handle, bay2_ej_handle;
|
||||
|
||||
static int bay_init(struct ibm_init_struct *iibm);
|
||||
static void bay_notify(struct ibm_struct *ibm, u32 event);
|
||||
static int bay_read(char *p);
|
||||
static int bay_write(char *buf);
|
||||
#endif /* CONFIG_THINKPAD_ACPI_BAY */
|
||||
|
||||
|
||||
/*
|
||||
* Beep subdriver
|
||||
*/
|
||||
|
||||
static acpi_handle beep_handle;
|
||||
|
||||
static int beep_read(char *p);
|
||||
static int beep_write(char *buf);
|
||||
|
||||
|
||||
/*
|
||||
* Bluetooth subdriver
|
||||
*/
|
||||
|
||||
#define TPACPI_BLUETH_SYSFS_GROUP "bluetooth"
|
||||
|
||||
enum {
|
||||
/* ACPI GBDC/SBDC bits */
|
||||
TP_ACPI_BLUETOOTH_HWPRESENT = 0x01, /* Bluetooth hw available */
|
||||
TP_ACPI_BLUETOOTH_RADIOSSW = 0x02, /* Bluetooth radio enabled */
|
||||
TP_ACPI_BLUETOOTH_UNK = 0x04, /* unknown function */
|
||||
};
|
||||
|
||||
static int bluetooth_init(struct ibm_init_struct *iibm);
|
||||
static int bluetooth_get_radiosw(void);
|
||||
static int bluetooth_set_radiosw(int radio_on);
|
||||
static int bluetooth_read(char *p);
|
||||
static int bluetooth_write(char *buf);
|
||||
|
||||
|
||||
/*
|
||||
* Brightness (backlight) subdriver
|
||||
*/
|
||||
|
||||
#define TPACPI_BACKLIGHT_DEV_NAME "thinkpad_screen"
|
||||
|
||||
static struct backlight_device *ibm_backlight_device;
|
||||
static int brightness_offset = 0x31;
|
||||
|
||||
static int brightness_init(struct ibm_init_struct *iibm);
|
||||
static void brightness_exit(void);
|
||||
static int brightness_get(struct backlight_device *bd);
|
||||
static int brightness_set(int value);
|
||||
static int brightness_update_status(struct backlight_device *bd);
|
||||
static int brightness_read(char *p);
|
||||
static int brightness_write(char *buf);
|
||||
|
||||
|
||||
/*
|
||||
* CMOS subdriver
|
||||
*/
|
||||
|
||||
static int cmos_read(char *p);
|
||||
static int cmos_write(char *buf);
|
||||
|
||||
|
||||
/*
|
||||
* Dock subdriver
|
||||
*/
|
||||
|
||||
#ifdef CONFIG_THINKPAD_ACPI_DOCK
|
||||
static acpi_handle pci_handle;
|
||||
static acpi_handle dock_handle;
|
||||
|
||||
static void dock_notify(struct ibm_struct *ibm, u32 event);
|
||||
static int dock_read(char *p);
|
||||
static int dock_write(char *buf);
|
||||
#endif /* CONFIG_THINKPAD_ACPI_DOCK */
|
||||
|
||||
|
||||
/*
|
||||
* EC dump subdriver
|
||||
*/
|
||||
|
||||
static int ecdump_read(char *p) ;
|
||||
static int ecdump_write(char *buf);
|
||||
|
||||
|
||||
/*
|
||||
* Fan subdriver
|
||||
*/
|
||||
|
||||
enum { /* Fan control constants */
|
||||
fan_status_offset = 0x2f, /* EC register 0x2f */
|
||||
fan_rpm_offset = 0x84, /* EC register 0x84: LSB, 0x85 MSB (RPM)
|
||||
* 0x84 must be read before 0x85 */
|
||||
|
||||
TP_EC_FAN_FULLSPEED = 0x40, /* EC fan mode: full speed */
|
||||
TP_EC_FAN_AUTO = 0x80, /* EC fan mode: auto fan control */
|
||||
|
||||
TPACPI_FAN_LAST_LEVEL = 0x100, /* Use cached last-seen fan level */
|
||||
};
|
||||
|
||||
enum fan_status_access_mode {
|
||||
TPACPI_FAN_NONE = 0, /* No fan status or control */
|
||||
TPACPI_FAN_RD_ACPI_GFAN, /* Use ACPI GFAN */
|
||||
TPACPI_FAN_RD_TPEC, /* Use ACPI EC regs 0x2f, 0x84-0x85 */
|
||||
};
|
||||
|
||||
enum fan_control_access_mode {
|
||||
TPACPI_FAN_WR_NONE = 0, /* No fan control */
|
||||
TPACPI_FAN_WR_ACPI_SFAN, /* Use ACPI SFAN */
|
||||
TPACPI_FAN_WR_TPEC, /* Use ACPI EC reg 0x2f */
|
||||
TPACPI_FAN_WR_ACPI_FANS, /* Use ACPI FANS and EC reg 0x2f */
|
||||
};
|
||||
|
||||
enum fan_control_commands {
|
||||
TPACPI_FAN_CMD_SPEED = 0x0001, /* speed command */
|
||||
TPACPI_FAN_CMD_LEVEL = 0x0002, /* level command */
|
||||
TPACPI_FAN_CMD_ENABLE = 0x0004, /* enable/disable cmd,
|
||||
* and also watchdog cmd */
|
||||
};
|
||||
|
||||
static int fan_control_allowed;
|
||||
|
||||
static enum fan_status_access_mode fan_status_access_mode;
|
||||
static enum fan_control_access_mode fan_control_access_mode;
|
||||
static enum fan_control_commands fan_control_commands;
|
||||
static u8 fan_control_initial_status;
|
||||
static u8 fan_control_desired_level;
|
||||
static int fan_watchdog_maxinterval;
|
||||
|
||||
static struct mutex fan_mutex;
|
||||
|
||||
static acpi_handle fans_handle, gfan_handle, sfan_handle;
|
||||
|
||||
static int fan_init(struct ibm_init_struct *iibm);
|
||||
static void fan_exit(void);
|
||||
static int fan_get_status(u8 *status);
|
||||
static int fan_get_status_safe(u8 *status);
|
||||
static int fan_get_speed(unsigned int *speed);
|
||||
static void fan_update_desired_level(u8 status);
|
||||
static void fan_watchdog_fire(struct work_struct *ignored);
|
||||
static void fan_watchdog_reset(void);
|
||||
static int fan_set_level(int level);
|
||||
static int fan_set_level_safe(int level);
|
||||
static int fan_set_enable(void);
|
||||
static int fan_set_disable(void);
|
||||
static int fan_set_speed(int speed);
|
||||
static int fan_read(char *p);
|
||||
static int fan_write(char *buf);
|
||||
static int fan_write_cmd_level(const char *cmd, int *rc);
|
||||
static int fan_write_cmd_enable(const char *cmd, int *rc);
|
||||
static int fan_write_cmd_disable(const char *cmd, int *rc);
|
||||
static int fan_write_cmd_speed(const char *cmd, int *rc);
|
||||
static int fan_write_cmd_watchdog(const char *cmd, int *rc);
|
||||
|
||||
|
||||
/*
|
||||
* Hotkey subdriver
|
||||
*/
|
||||
|
||||
#define TPACPI_HOTKEY_SYSFS_GROUP "hotkey"
|
||||
|
||||
static int hotkey_orig_status;
|
||||
static int hotkey_orig_mask;
|
||||
|
||||
static struct mutex hotkey_mutex;
|
||||
|
||||
static int hotkey_init(struct ibm_init_struct *iibm);
|
||||
static void hotkey_exit(void);
|
||||
static int hotkey_get(int *status, int *mask);
|
||||
static int hotkey_set(int status, int mask);
|
||||
static void hotkey_notify(struct ibm_struct *ibm, u32 event);
|
||||
static int hotkey_read(char *p);
|
||||
static int hotkey_write(char *buf);
|
||||
|
||||
|
||||
/*
|
||||
* LED subdriver
|
||||
*/
|
||||
|
||||
enum led_access_mode {
|
||||
TPACPI_LED_NONE = 0,
|
||||
TPACPI_LED_570, /* 570 */
|
||||
TPACPI_LED_OLD, /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */
|
||||
TPACPI_LED_NEW, /* all others */
|
||||
};
|
||||
|
||||
enum { /* For TPACPI_LED_OLD */
|
||||
TPACPI_LED_EC_HLCL = 0x0c, /* EC reg to get led to power on */
|
||||
TPACPI_LED_EC_HLBL = 0x0d, /* EC reg to blink a lit led */
|
||||
TPACPI_LED_EC_HLMS = 0x0e, /* EC reg to select led to command */
|
||||
};
|
||||
|
||||
static enum led_access_mode led_supported;
|
||||
static acpi_handle led_handle;
|
||||
|
||||
static int led_init(struct ibm_init_struct *iibm);
|
||||
static int led_read(char *p);
|
||||
static int led_write(char *buf);
|
||||
|
||||
/*
|
||||
* Light (thinklight) subdriver
|
||||
*/
|
||||
|
||||
static acpi_handle lght_handle, ledb_handle;
|
||||
|
||||
static int light_init(struct ibm_init_struct *iibm);
|
||||
static int light_read(char *p);
|
||||
static int light_write(char *buf);
|
||||
|
||||
|
||||
/*
|
||||
* Thermal subdriver
|
||||
*/
|
||||
|
||||
enum thermal_access_mode {
|
||||
TPACPI_THERMAL_NONE = 0, /* No thermal support */
|
||||
TPACPI_THERMAL_ACPI_TMP07, /* Use ACPI TMP0-7 */
|
||||
TPACPI_THERMAL_ACPI_UPDT, /* Use ACPI TMP0-7 with UPDT */
|
||||
TPACPI_THERMAL_TPEC_8, /* Use ACPI EC regs, 8 sensors */
|
||||
TPACPI_THERMAL_TPEC_16, /* Use ACPI EC regs, 16 sensors */
|
||||
};
|
||||
|
||||
enum { /* TPACPI_THERMAL_TPEC_* */
|
||||
TP_EC_THERMAL_TMP0 = 0x78, /* ACPI EC regs TMP 0..7 */
|
||||
TP_EC_THERMAL_TMP8 = 0xC0, /* ACPI EC regs TMP 8..15 */
|
||||
TP_EC_THERMAL_TMP_NA = -128, /* ACPI EC sensor not available */
|
||||
};
|
||||
|
||||
#define TPACPI_MAX_THERMAL_SENSORS 16 /* Max thermal sensors supported */
|
||||
struct ibm_thermal_sensors_struct {
|
||||
s32 temp[TPACPI_MAX_THERMAL_SENSORS];
|
||||
};
|
||||
|
||||
static enum thermal_access_mode thermal_read_mode;
|
||||
|
||||
static int thermal_init(struct ibm_init_struct *iibm);
|
||||
static int thermal_get_sensor(int idx, s32 *value);
|
||||
static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s);
|
||||
static int thermal_read(char *p);
|
||||
|
||||
|
||||
/*
|
||||
* Video subdriver
|
||||
*/
|
||||
|
||||
enum video_access_mode {
|
||||
TPACPI_VIDEO_NONE = 0,
|
||||
TPACPI_VIDEO_570, /* 570 */
|
||||
TPACPI_VIDEO_770, /* 600e/x, 770e, 770x */
|
||||
TPACPI_VIDEO_NEW, /* all others */
|
||||
};
|
||||
|
||||
enum { /* video status flags, based on VIDEO_570 */
|
||||
TP_ACPI_VIDEO_S_LCD = 0x01, /* LCD output enabled */
|
||||
TP_ACPI_VIDEO_S_CRT = 0x02, /* CRT output enabled */
|
||||
TP_ACPI_VIDEO_S_DVI = 0x08, /* DVI output enabled */
|
||||
};
|
||||
|
||||
enum { /* TPACPI_VIDEO_570 constants */
|
||||
TP_ACPI_VIDEO_570_PHSCMD = 0x87, /* unknown magic constant :( */
|
||||
TP_ACPI_VIDEO_570_PHSMASK = 0x03, /* PHS bits that map to
|
||||
* video_status_flags */
|
||||
TP_ACPI_VIDEO_570_PHS2CMD = 0x8b, /* unknown magic constant :( */
|
||||
TP_ACPI_VIDEO_570_PHS2SET = 0x80, /* unknown magic constant :( */
|
||||
};
|
||||
|
||||
static enum video_access_mode video_supported;
|
||||
static int video_orig_autosw;
|
||||
static acpi_handle vid_handle, vid2_handle;
|
||||
|
||||
static int video_init(struct ibm_init_struct *iibm);
|
||||
static void video_exit(void);
|
||||
static int video_outputsw_get(void);
|
||||
static int video_outputsw_set(int status);
|
||||
static int video_autosw_get(void);
|
||||
static int video_autosw_set(int enable);
|
||||
static int video_outputsw_cycle(void);
|
||||
static int video_expand_toggle(void);
|
||||
static int video_read(char *p);
|
||||
static int video_write(char *buf);
|
||||
|
||||
|
||||
/*
|
||||
* Volume subdriver
|
||||
*/
|
||||
|
||||
static int volume_offset = 0x30;
|
||||
|
||||
static int volume_read(char *p);
|
||||
static int volume_write(char *buf);
|
||||
|
||||
|
||||
/*
|
||||
* Wan subdriver
|
||||
*/
|
||||
|
||||
#define TPACPI_WAN_SYSFS_GROUP "wwan"
|
||||
|
||||
enum {
|
||||
/* ACPI GWAN/SWAN bits */
|
||||
TP_ACPI_WANCARD_HWPRESENT = 0x01, /* Wan hw available */
|
||||
TP_ACPI_WANCARD_RADIOSSW = 0x02, /* Wan radio enabled */
|
||||
TP_ACPI_WANCARD_UNK = 0x04, /* unknown function */
|
||||
};
|
||||
|
||||
static int wan_init(struct ibm_init_struct *iibm);
|
||||
static int wan_get_radiosw(void);
|
||||
static int wan_set_radiosw(int radio_on);
|
||||
static int wan_read(char *p);
|
||||
static int wan_write(char *buf);
|
||||
|
||||
|
||||
#endif /* __THINKPAD_ACPI_H */
|
||||
Loading…
Reference in New Issue