forked from luck/tmp_suning_uos_patched
Pull platform-drivers into test branch
This commit is contained in:
Len Brown
commit
6bfe5c9d6f
@ -398,26 +398,68 @@ Temperature sensors -- /proc/acpi/ibm/thermal
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Most ThinkPads include six or more separate temperature sensors but
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only expose the CPU temperature through the standard ACPI methods.
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This feature shows readings from up to eight different sensors. Some
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readings may not be valid, e.g. may show large negative values. For
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example, on the X40, a typical output may be:
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temperatures: 42 42 45 41 36 -128 33 -128
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Thomas Gruber took his R51 apart and traced all six active sensors in
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his laptop (the location of sensors may vary on other models):
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1: CPU
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2: Mini PCI Module
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3: HDD
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4: GPU
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5: Battery
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6: N/A
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7: Battery
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8: N/A
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This feature shows readings from up to eight different sensors on older
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ThinkPads, and it has experimental support for up to sixteen different
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sensors on newer ThinkPads. Readings from sensors that are not available
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return -128.
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No commands can be written to this file.
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EXPERIMENTAL: The 16-sensors feature is marked EXPERIMENTAL because the
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implementation directly accesses hardware registers and may not work as
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expected. USE WITH CAUTION! To use this feature, you need to supply the
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experimental=1 parameter when loading the module. When EXPERIMENTAL
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mode is enabled, reading the first 8 sensors on newer ThinkPads will
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also use an new experimental thermal sensor access mode.
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For example, on the X40, a typical output may be:
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temperatures: 42 42 45 41 36 -128 33 -128
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EXPERIMENTAL: On the T43/p, a typical output may be:
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temperatures: 48 48 36 52 38 -128 31 -128 48 52 48 -128 -128 -128 -128 -128
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The mapping of thermal sensors to physical locations varies depending on
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system-board model (and thus, on ThinkPad model).
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http://thinkwiki.org/wiki/Thermal_Sensors is a public wiki page that
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tries to track down these locations for various models.
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Most (newer?) models seem to follow this pattern:
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1: CPU
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2: (depends on model)
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3: (depends on model)
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4: GPU
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5: Main battery: main sensor
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6: Bay battery: main sensor
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7: Main battery: secondary sensor
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8: Bay battery: secondary sensor
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9-15: (depends on model)
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For the R51 (source: Thomas Gruber):
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2: Mini-PCI
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3: Internal HDD
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For the T43, T43/p (source: Shmidoax/Thinkwiki.org)
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http://thinkwiki.org/wiki/Thermal_Sensors#ThinkPad_T43.2C_T43p
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2: System board, left side (near PCMCIA slot), reported as HDAPS temp
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3: PCMCIA slot
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9: MCH (northbridge) to DRAM Bus
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10: ICH (southbridge), under Mini-PCI card, under touchpad
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11: Power regulator, underside of system board, below F2 key
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The A31 has a very atypical layout for the thermal sensors
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(source: Milos Popovic, http://thinkwiki.org/wiki/Thermal_Sensors#ThinkPad_A31)
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1: CPU
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2: Main Battery: main sensor
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3: Power Converter
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4: Bay Battery: main sensor
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5: MCH (northbridge)
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6: PCMCIA/ambient
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7: Main Battery: secondary sensor
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8: Bay Battery: secondary sensor
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EXPERIMENTAL: Embedded controller register dump -- /proc/acpi/ibm/ecdump
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------------------------------------------------------------------------
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@ -529,27 +571,57 @@ directly accesses hardware registers and may not work as expected. USE
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WITH CAUTION! To use this feature, you need to supply the
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experimental=1 parameter when loading the module.
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This feature attempts to show the current fan speed. The speed is read
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directly from the hardware registers of the embedded controller. This
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is known to work on later R, T and X series ThinkPads but may show a
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bogus value on other models.
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This feature attempts to show the current fan speed, control mode and
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other fan data that might be available. The speed is read directly
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from the hardware registers of the embedded controller. This is known
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to work on later R, T and X series ThinkPads but may show a bogus
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value on other models.
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Most ThinkPad fans work in "levels". Level 0 stops the fan. The higher
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the level, the higher the fan speed, although adjacent levels often map
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to the same fan speed. 7 is the highest level, where the fan reaches
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the maximum recommended speed. Level "auto" means the EC changes the
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fan level according to some internal algorithm, usually based on
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readings from the thermal sensors. Level "disengaged" means the EC
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disables the speed-locked closed-loop fan control, and drives the fan as
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fast as it can go, which might exceed hardware limits, so use this level
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with caution.
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The fan usually ramps up or down slowly from one speed to another,
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and it is normal for the EC to take several seconds to react to fan
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commands.
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The fan may be enabled or disabled with the following commands:
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echo enable >/proc/acpi/ibm/fan
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echo disable >/proc/acpi/ibm/fan
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WARNING WARNING WARNING: do not leave the fan disabled unless you are
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monitoring the temperature sensor readings and you are ready to enable
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it if necessary to avoid overheating.
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Placing a fan on level 0 is the same as disabling it. Enabling a fan
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will try to place it in a safe level if it is too slow or disabled.
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The fan only runs if it's enabled *and* the various temperature
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sensors which control it read high enough. On the X40, this seems to
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depend on the CPU and HDD temperatures. Specifically, the fan is
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turned on when either the CPU temperature climbs to 56 degrees or the
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HDD temperature climbs to 46 degrees. The fan is turned off when the
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CPU temperature drops to 49 degrees and the HDD temperature drops to
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41 degrees. These thresholds cannot currently be controlled.
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WARNING WARNING WARNING: do not leave the fan disabled unless you are
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monitoring all of the temperature sensor readings and you are ready to
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enable it if necessary to avoid overheating.
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An enabled fan in level "auto" may stop spinning if the EC decides the
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ThinkPad is cool enough and doesn't need the extra airflow. This is
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normal, and the EC will spin the fan up if the varios thermal readings
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rise too much.
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On the X40, this seems to depend on the CPU and HDD temperatures.
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Specifically, the fan is turned on when either the CPU temperature
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climbs to 56 degrees or the HDD temperature climbs to 46 degrees. The
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fan is turned off when the CPU temperature drops to 49 degrees and the
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HDD temperature drops to 41 degrees. These thresholds cannot
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currently be controlled.
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The fan level can be controlled with the command:
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echo 'level <level>' > /proc/acpi/ibm/thermal
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Where <level> is an integer from 0 to 7, or one of the words "auto"
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or "disengaged" (without the quotes). Not all ThinkPads support the
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"auto" and "disengaged" levels.
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On the X31 and X40 (and ONLY on those models), the fan speed can be
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controlled to a certain degree. Once the fan is running, it can be
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@ -562,12 +634,9 @@ about 3700 to about 7350. Values outside this range either do not have
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any effect or the fan speed eventually settles somewhere in that
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range. The fan cannot be stopped or started with this command.
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On the 570, temperature readings are not available through this
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feature and the fan control works a little differently. The fan speed
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is reported in levels from 0 (off) to 7 (max) and can be controlled
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with the following command:
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echo 'level <level>' > /proc/acpi/ibm/thermal
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The ThinkPad's ACPI DSDT code will reprogram the fan on its own when
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certain conditions are met. It will override any fan programming done
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through ibm-acpi.
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EXPERIMENTAL: WAN -- /proc/acpi/ibm/wan
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---------------------------------------
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@ -601,6 +670,26 @@ example:
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modprobe ibm_acpi hotkey=enable,0xffff video=auto_disable
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The ibm-acpi kernel driver can be programmed to revert the fan level
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to a safe setting if userspace does not issue one of the fan commands:
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"enable", "disable", "level" or "watchdog" within a configurable
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ammount of time. To do this, use the "watchdog" command.
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echo 'watchdog <interval>' > /proc/acpi/ibm/fan
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Interval is the ammount of time in seconds to wait for one of the
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above mentioned fan commands before reseting the fan level to a safe
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one. If set to zero, the watchdog is disabled (default). When the
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watchdog timer runs out, it does the exact equivalent of the "enable"
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fan command.
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Note that the watchdog timer stops after it enables the fan. It will
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be rearmed again automatically (using the same interval) when one of
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the above mentioned fan commands is received. The fan watchdog is,
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therefore, not suitable to protect against fan mode changes made
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through means other than the "enable", "disable", and "level" fan
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commands.
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Example Configuration
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---------------------
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@ -173,6 +173,7 @@ config ACPI_NUMA
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config ACPI_ASUS
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tristate "ASUS/Medion Laptop Extras"
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depends on X86
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select BACKLIGHT_CLASS_DEVICE
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---help---
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This driver provides support for extra features of ACPI-compatible
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ASUS laptops. As some of Medion laptops are made by ASUS, it may also
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@ -201,6 +202,7 @@ config ACPI_ASUS
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config ACPI_IBM
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tristate "IBM ThinkPad Laptop Extras"
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depends on X86
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select BACKLIGHT_CLASS_DEVICE
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---help---
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This is a Linux ACPI driver for the IBM ThinkPad laptops. It adds
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support for Fn-Fx key combinations, Bluetooth control, video
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@ -223,9 +225,21 @@ config ACPI_IBM_DOCK
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If you are not sure, say N here.
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config ACPI_IBM_BAY
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bool "Legacy Removable Bay Support"
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depends on ACPI_IBM
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depends on ACPI_BAY=n
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default n
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---help---
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Allows the ibm_acpi driver to handle removable bays.
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This support is obsoleted by CONFIG_ACPI_BAY.
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If you are not sure, say N here.
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config ACPI_TOSHIBA
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tristate "Toshiba Laptop Extras"
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depends on X86
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select BACKLIGHT_CLASS_DEVICE
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---help---
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This driver adds support for access to certain system settings
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on "legacy free" Toshiba laptops. These laptops can be recognized by
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@ -35,6 +35,7 @@
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#include <linux/init.h>
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#include <linux/types.h>
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#include <linux/proc_fs.h>
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#include <linux/backlight.h>
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#include <acpi/acpi_drivers.h>
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#include <acpi/acpi_bus.h>
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#include <asm/uaccess.h>
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@ -402,6 +403,8 @@ static struct model_data model_conf[END_MODEL] = {
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/* procdir we use */
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static struct proc_dir_entry *asus_proc_dir;
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static struct backlight_device *asus_backlight_device;
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/*
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* This header is made available to allow proper configuration given model,
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* revision number , ... this info cannot go in struct asus_hotk because it is
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@ -779,7 +782,7 @@ proc_write_lcd(struct file *file, const char __user * buffer,
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return rv;
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}
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static int read_brightness(void)
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static int read_brightness(struct backlight_device *bd)
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{
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int value;
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@ -801,9 +804,10 @@ static int read_brightness(void)
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/*
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* Change the brightness level
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*/
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static void set_brightness(int value)
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static int set_brightness(int value)
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{
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acpi_status status = 0;
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int ret = 0;
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/* SPLV laptop */
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if (hotk->methods->brightness_set) {
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@ -811,11 +815,12 @@ static void set_brightness(int value)
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value, NULL))
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printk(KERN_WARNING
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"Asus ACPI: Error changing brightness\n");
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return;
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ret = -EIO;
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goto out;
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}
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/* No SPLV method if we are here, act as appropriate */
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value -= read_brightness();
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value -= read_brightness(NULL);
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while (value != 0) {
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status = acpi_evaluate_object(NULL, (value > 0) ?
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hotk->methods->brightness_up :
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@ -825,15 +830,22 @@ static void set_brightness(int value)
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if (ACPI_FAILURE(status))
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printk(KERN_WARNING
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"Asus ACPI: Error changing brightness\n");
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ret = -EIO;
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}
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return;
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out:
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return ret;
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}
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static int set_brightness_status(struct backlight_device *bd)
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{
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return set_brightness(bd->props->brightness);
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}
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static int
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proc_read_brn(char *page, char **start, off_t off, int count, int *eof,
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void *data)
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{
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return sprintf(page, "%d\n", read_brightness());
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return sprintf(page, "%d\n", read_brightness(NULL));
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}
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static int
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@ -1333,6 +1345,26 @@ static int asus_hotk_remove(struct acpi_device *device, int type)
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return 0;
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}
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static struct backlight_properties asus_backlight_data = {
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.owner = THIS_MODULE,
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.get_brightness = read_brightness,
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.update_status = set_brightness_status,
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.max_brightness = 15,
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};
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static void __exit asus_acpi_exit(void)
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{
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if (asus_backlight_device)
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backlight_device_unregister(asus_backlight_device);
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acpi_bus_unregister_driver(&asus_hotk_driver);
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remove_proc_entry(PROC_ASUS, acpi_root_dir);
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|
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kfree(asus_info);
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return;
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}
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|
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static int __init asus_acpi_init(void)
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{
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int result;
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@ -1370,18 +1402,16 @@ static int __init asus_acpi_init(void)
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return result;
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}
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|
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asus_backlight_device = backlight_device_register("asus", NULL,
|
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&asus_backlight_data);
|
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if (IS_ERR(asus_backlight_device)) {
|
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printk(KERN_ERR "Could not register asus backlight device\n");
|
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asus_backlight_device = NULL;
|
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asus_acpi_exit();
|
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}
|
||||
|
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return 0;
|
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}
|
||||
|
||||
static void __exit asus_acpi_exit(void)
|
||||
{
|
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acpi_bus_unregister_driver(&asus_hotk_driver);
|
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remove_proc_entry(PROC_ASUS, acpi_root_dir);
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|
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kfree(asus_info);
|
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|
||||
return;
|
||||
}
|
||||
|
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module_init(asus_acpi_init);
|
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module_exit(asus_acpi_exit);
|
||||
|
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File diff suppressed because it is too large
Load Diff
@ -41,6 +41,8 @@
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#include <linux/init.h>
|
||||
#include <linux/types.h>
|
||||
#include <linux/proc_fs.h>
|
||||
#include <linux/backlight.h>
|
||||
|
||||
#include <asm/uaccess.h>
|
||||
|
||||
#include <acpi/acpi_drivers.h>
|
||||
@ -210,6 +212,7 @@ static acpi_status hci_read1(u32 reg, u32 * out1, u32 * result)
|
||||
}
|
||||
|
||||
static struct proc_dir_entry *toshiba_proc_dir /*= 0*/ ;
|
||||
static struct backlight_device *toshiba_backlight_device;
|
||||
static int force_fan;
|
||||
static int last_key_event;
|
||||
static int key_event_valid;
|
||||
@ -271,14 +274,23 @@ dispatch_write(struct file *file, const char __user * buffer,
|
||||
return result;
|
||||
}
|
||||
|
||||
static char *read_lcd(char *p)
|
||||
static int get_lcd(struct backlight_device *bd)
|
||||
{
|
||||
u32 hci_result;
|
||||
u32 value;
|
||||
|
||||
hci_read1(HCI_LCD_BRIGHTNESS, &value, &hci_result);
|
||||
if (hci_result == HCI_SUCCESS) {
|
||||
value = value >> HCI_LCD_BRIGHTNESS_SHIFT;
|
||||
return (value >> HCI_LCD_BRIGHTNESS_SHIFT);
|
||||
} else
|
||||
return -EFAULT;
|
||||
}
|
||||
|
||||
static char *read_lcd(char *p)
|
||||
{
|
||||
int value = get_lcd(NULL);
|
||||
|
||||
if (value >= 0) {
|
||||
p += sprintf(p, "brightness: %d\n", value);
|
||||
p += sprintf(p, "brightness_levels: %d\n",
|
||||
HCI_LCD_BRIGHTNESS_LEVELS);
|
||||
@ -289,22 +301,34 @@ static char *read_lcd(char *p)
|
||||
return p;
|
||||
}
|
||||
|
||||
static int set_lcd(int value)
|
||||
{
|
||||
u32 hci_result;
|
||||
|
||||
value = value << HCI_LCD_BRIGHTNESS_SHIFT;
|
||||
hci_write1(HCI_LCD_BRIGHTNESS, value, &hci_result);
|
||||
if (hci_result != HCI_SUCCESS)
|
||||
return -EFAULT;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int set_lcd_status(struct backlight_device *bd)
|
||||
{
|
||||
return set_lcd(bd->props->brightness);
|
||||
}
|
||||
|
||||
static unsigned long write_lcd(const char *buffer, unsigned long count)
|
||||
{
|
||||
int value;
|
||||
u32 hci_result;
|
||||
int ret = count;
|
||||
|
||||
if (sscanf(buffer, " brightness : %i", &value) == 1 &&
|
||||
value >= 0 && value < HCI_LCD_BRIGHTNESS_LEVELS) {
|
||||
value = value << HCI_LCD_BRIGHTNESS_SHIFT;
|
||||
hci_write1(HCI_LCD_BRIGHTNESS, value, &hci_result);
|
||||
if (hci_result != HCI_SUCCESS)
|
||||
return -EFAULT;
|
||||
} else {
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
return count;
|
||||
value >= 0 && value < HCI_LCD_BRIGHTNESS_LEVELS)
|
||||
ret = set_lcd(value);
|
||||
else
|
||||
ret = -EINVAL;
|
||||
return ret;
|
||||
}
|
||||
|
||||
static char *read_video(char *p)
|
||||
@ -506,6 +530,26 @@ static acpi_status __exit remove_device(void)
|
||||
return AE_OK;
|
||||
}
|
||||
|
||||
static struct backlight_properties toshiba_backlight_data = {
|
||||
.owner = THIS_MODULE,
|
||||
.get_brightness = get_lcd,
|
||||
.update_status = set_lcd_status,
|
||||
.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1,
|
||||
};
|
||||
|
||||
static void __exit toshiba_acpi_exit(void)
|
||||
{
|
||||
if (toshiba_backlight_device)
|
||||
backlight_device_unregister(toshiba_backlight_device);
|
||||
|
||||
remove_device();
|
||||
|
||||
if (toshiba_proc_dir)
|
||||
remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
static int __init toshiba_acpi_init(void)
|
||||
{
|
||||
acpi_status status = AE_OK;
|
||||
@ -546,18 +590,16 @@ static int __init toshiba_acpi_init(void)
|
||||
remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
|
||||
}
|
||||
|
||||
toshiba_backlight_device = backlight_device_register("toshiba", NULL,
|
||||
&toshiba_backlight_data);
|
||||
if (IS_ERR(toshiba_backlight_device)) {
|
||||
printk(KERN_ERR "Could not register toshiba backlight device\n");
|
||||
toshiba_backlight_device = NULL;
|
||||
toshiba_acpi_exit();
|
||||
}
|
||||
|
||||
return (ACPI_SUCCESS(status)) ? 0 : -ENODEV;
|
||||
}
|
||||
|
||||
static void __exit toshiba_acpi_exit(void)
|
||||
{
|
||||
remove_device();
|
||||
|
||||
if (toshiba_proc_dir)
|
||||
remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
module_init(toshiba_acpi_init);
|
||||
module_exit(toshiba_acpi_exit);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user