mirror of
https://github.com/edk2-porting/linux-next.git
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Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: hwmon: (ltc4245) Clear faults at startup hwmon: (ltc4215) Clear faults at startup hwmon: (coretemp) Add Lynnfield CPU hwmon: (coretemp) Add support for Penryn mobile CPUs hwmon: (coretemp) Fix Atom CPUs support hwmon: Delete deprecated FSC drivers hwmon: (adm1031) Add sysfs files for temperature offsets
This commit is contained in:
Linus Torvalds
commit
3e56d49390
@ -354,14 +354,6 @@ Who: Krzysztof Piotr Oledzki <ole@ans.pl>
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---------------------------
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What: fscher and fscpos drivers
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When: June 2009
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Why: Deprecated by the new fschmd driver.
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Who: Hans de Goede <hdegoede@redhat.com>
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Jean Delvare <khali@linux-fr.org>
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---------------------------
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What: sysfs ui for changing p4-clockmod parameters
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When: September 2009
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Why: See commits 129f8ae9b1b5be94517da76009ea956e89104ce8 and
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@ -4,7 +4,9 @@ Kernel driver coretemp
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Supported chips:
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* All Intel Core family
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Prefix: 'coretemp'
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CPUID: family 0x6, models 0xe, 0xf, 0x16, 0x17
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CPUID: family 0x6, models 0xe (Pentium M DC), 0xf (Core 2 DC 65nm),
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0x16 (Core 2 SC 65nm), 0x17 (Penryn 45nm),
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0x1a (Nehalem), 0x1c (Atom), 0x1e (Lynnfield)
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Datasheet: Intel 64 and IA-32 Architectures Software Developer's Manual
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Volume 3A: System Programming Guide
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http://softwarecommunity.intel.com/Wiki/Mobility/720.htm
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@ -1,169 +0,0 @@
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Kernel driver fscher
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====================
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Supported chips:
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* Fujitsu-Siemens Hermes chip
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Prefix: 'fscher'
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Addresses scanned: I2C 0x73
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Authors:
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Reinhard Nissl <rnissl@gmx.de> based on work
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from Hermann Jung <hej@odn.de>,
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Frodo Looijaard <frodol@dds.nl>,
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Philip Edelbrock <phil@netroedge.com>
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Description
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-----------
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This driver implements support for the Fujitsu-Siemens Hermes chip. It is
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described in the 'Register Set Specification BMC Hermes based Systemboard'
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from Fujitsu-Siemens.
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The Hermes chip implements a hardware-based system management, e.g. for
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controlling fan speed and core voltage. There is also a watchdog counter on
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the chip which can trigger an alarm and even shut the system down.
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The chip provides three temperature values (CPU, motherboard and
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auxiliary), three voltage values (+12V, +5V and battery) and three fans
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(power supply, CPU and auxiliary).
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Temperatures are measured in degrees Celsius. The resolution is 1 degree.
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Fan rotation speeds are reported in RPM (rotations per minute). The value
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can be divided by a programmable divider (1, 2 or 4) which is stored on
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the chip.
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Voltage sensors (also known as "in" sensors) report their values in volts.
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All values are reported as final values from the driver. There is no need
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for further calculations.
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Detailed description
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--------------------
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Below you'll find a single line description of all the bit values. With
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this information, you're able to decode e. g. alarms, wdog, etc. To make
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use of the watchdog, you'll need to set the watchdog time and enable the
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watchdog. After that it is necessary to restart the watchdog time within
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the specified period of time, or a system reset will occur.
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* revision
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READING & 0xff = 0x??: HERMES revision identification
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* alarms
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READING & 0x80 = 0x80: CPU throttling active
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READING & 0x80 = 0x00: CPU running at full speed
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READING & 0x10 = 0x10: software event (see control:1)
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READING & 0x10 = 0x00: no software event
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READING & 0x08 = 0x08: watchdog event (see wdog:2)
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READING & 0x08 = 0x00: no watchdog event
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READING & 0x02 = 0x02: thermal event (see temp*:1)
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READING & 0x02 = 0x00: no thermal event
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READING & 0x01 = 0x01: fan event (see fan*:1)
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READING & 0x01 = 0x00: no fan event
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READING & 0x13 ! 0x00: ALERT LED is flashing
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* control
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READING & 0x01 = 0x01: software event
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READING & 0x01 = 0x00: no software event
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WRITING & 0x01 = 0x01: set software event
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WRITING & 0x01 = 0x00: clear software event
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* watchdog_control
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READING & 0x80 = 0x80: power off on watchdog event while thermal event
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READING & 0x80 = 0x00: watchdog power off disabled (just system reset enabled)
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READING & 0x40 = 0x40: watchdog timebase 60 seconds (see also wdog:1)
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READING & 0x40 = 0x00: watchdog timebase 2 seconds
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READING & 0x10 = 0x10: watchdog enabled
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READING & 0x10 = 0x00: watchdog disabled
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WRITING & 0x80 = 0x80: enable "power off on watchdog event while thermal event"
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WRITING & 0x80 = 0x00: disable "power off on watchdog event while thermal event"
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WRITING & 0x40 = 0x40: set watchdog timebase to 60 seconds
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WRITING & 0x40 = 0x00: set watchdog timebase to 2 seconds
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WRITING & 0x20 = 0x20: disable watchdog
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WRITING & 0x10 = 0x10: enable watchdog / restart watchdog time
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* watchdog_state
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READING & 0x02 = 0x02: watchdog system reset occurred
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READING & 0x02 = 0x00: no watchdog system reset occurred
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WRITING & 0x02 = 0x02: clear watchdog event
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* watchdog_preset
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READING & 0xff = 0x??: configured watch dog time in units (see wdog:3 0x40)
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WRITING & 0xff = 0x??: configure watch dog time in units
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* in* (0: +5V, 1: +12V, 2: onboard 3V battery)
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READING: actual voltage value
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* temp*_status (1: CPU sensor, 2: onboard sensor, 3: auxiliary sensor)
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READING & 0x02 = 0x02: thermal event (overtemperature)
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READING & 0x02 = 0x00: no thermal event
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READING & 0x01 = 0x01: sensor is working
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READING & 0x01 = 0x00: sensor is faulty
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WRITING & 0x02 = 0x02: clear thermal event
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* temp*_input (1: CPU sensor, 2: onboard sensor, 3: auxiliary sensor)
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READING: actual temperature value
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* fan*_status (1: power supply fan, 2: CPU fan, 3: auxiliary fan)
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READING & 0x04 = 0x04: fan event (fan fault)
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READING & 0x04 = 0x00: no fan event
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WRITING & 0x04 = 0x04: clear fan event
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* fan*_div (1: power supply fan, 2: CPU fan, 3: auxiliary fan)
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Divisors 2,4 and 8 are supported, both for reading and writing
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* fan*_pwm (1: power supply fan, 2: CPU fan, 3: auxiliary fan)
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READING & 0xff = 0x00: fan may be switched off
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READING & 0xff = 0x01: fan must run at least at minimum speed (supply: 6V)
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READING & 0xff = 0xff: fan must run at maximum speed (supply: 12V)
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READING & 0xff = 0x??: fan must run at least at given speed (supply: 6V..12V)
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WRITING & 0xff = 0x00: fan may be switched off
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WRITING & 0xff = 0x01: fan must run at least at minimum speed (supply: 6V)
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WRITING & 0xff = 0xff: fan must run at maximum speed (supply: 12V)
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WRITING & 0xff = 0x??: fan must run at least at given speed (supply: 6V..12V)
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* fan*_input (1: power supply fan, 2: CPU fan, 3: auxiliary fan)
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READING: actual RPM value
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Limitations
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-----------
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* Measuring fan speed
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It seems that the chip counts "ripples" (typical fans produce 2 ripples per
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rotation while VERAX fans produce 18) in a 9-bit register. This register is
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read out every second, then the ripple prescaler (2, 4 or 8) is applied and
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the result is stored in the 8 bit output register. Due to the limitation of
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the counting register to 9 bits, it is impossible to measure a VERAX fan
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properly (even with a prescaler of 8). At its maximum speed of 3500 RPM the
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fan produces 1080 ripples per second which causes the counting register to
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overflow twice, leading to only 186 RPM.
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* Measuring input voltages
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in2 ("battery") reports the voltage of the onboard lithium battery and not
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+3.3V from the power supply.
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* Undocumented features
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Fujitsu-Siemens Computers has not documented all features of the chip so
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far. Their software, System Guard, shows that there are a still some
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features which cannot be controlled by this implementation.
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@ -325,34 +325,6 @@ config SENSORS_F75375S
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This driver can also be built as a module. If so, the module
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will be called f75375s.
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config SENSORS_FSCHER
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tristate "FSC Hermes (DEPRECATED)"
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depends on X86 && I2C
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help
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This driver is DEPRECATED please use the new merged fschmd
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("FSC Poseidon, Scylla, Hermes, Heimdall and Heracles") driver
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instead.
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If you say yes here you get support for Fujitsu Siemens
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Computers Hermes sensor chips.
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This driver can also be built as a module. If so, the module
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will be called fscher.
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config SENSORS_FSCPOS
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tristate "FSC Poseidon (DEPRECATED)"
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depends on X86 && I2C
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help
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This driver is DEPRECATED please use the new merged fschmd
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("FSC Poseidon, Scylla, Hermes, Heimdall and Heracles") driver
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instead.
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If you say yes here you get support for Fujitsu Siemens
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Computers Poseidon sensor chips.
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This driver can also be built as a module. If so, the module
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will be called fscpos.
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config SENSORS_FSCHMD
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tristate "Fujitsu Siemens Computers sensor chips"
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depends on X86 && I2C
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@ -401,12 +373,12 @@ config SENSORS_GL520SM
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will be called gl520sm.
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config SENSORS_CORETEMP
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tristate "Intel Core (2) Duo/Solo temperature sensor"
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tristate "Intel Core/Core2/Atom temperature sensor"
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depends on X86 && EXPERIMENTAL
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help
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If you say yes here you get support for the temperature
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sensor inside your CPU. Supported all are all known variants
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of Intel Core family.
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sensor inside your CPU. Most of the family 6 CPUs
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are supported. Check documentation/driver for details.
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config SENSORS_IBMAEM
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tristate "IBM Active Energy Manager temperature/power sensors and control"
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@ -42,9 +42,7 @@ obj-$(CONFIG_SENSORS_DS1621) += ds1621.o
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obj-$(CONFIG_SENSORS_F71805F) += f71805f.o
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obj-$(CONFIG_SENSORS_F71882FG) += f71882fg.o
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obj-$(CONFIG_SENSORS_F75375S) += f75375s.o
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obj-$(CONFIG_SENSORS_FSCHER) += fscher.o
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obj-$(CONFIG_SENSORS_FSCHMD) += fschmd.o
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obj-$(CONFIG_SENSORS_FSCPOS) += fscpos.o
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obj-$(CONFIG_SENSORS_G760A) += g760a.o
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obj-$(CONFIG_SENSORS_GL518SM) += gl518sm.o
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obj-$(CONFIG_SENSORS_GL520SM) += gl520sm.o
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@ -37,6 +37,7 @@
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#define ADM1031_REG_PWM (0x22)
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#define ADM1031_REG_FAN_MIN(nr) (0x10 + (nr))
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#define ADM1031_REG_TEMP_OFFSET(nr) (0x0d + (nr))
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#define ADM1031_REG_TEMP_MAX(nr) (0x14 + 4 * (nr))
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#define ADM1031_REG_TEMP_MIN(nr) (0x15 + 4 * (nr))
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#define ADM1031_REG_TEMP_CRIT(nr) (0x16 + 4 * (nr))
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@ -93,6 +94,7 @@ struct adm1031_data {
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u8 auto_temp_min[3];
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u8 auto_temp_off[3];
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u8 auto_temp_max[3];
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s8 temp_offset[3];
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s8 temp_min[3];
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s8 temp_max[3];
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s8 temp_crit[3];
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@ -145,6 +147,10 @@ adm1031_write_value(struct i2c_client *client, u8 reg, unsigned int value)
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#define TEMP_FROM_REG_EXT(val, ext) (TEMP_FROM_REG(val) + (ext) * 125)
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#define TEMP_OFFSET_TO_REG(val) (TEMP_TO_REG(val) & 0x8f)
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#define TEMP_OFFSET_FROM_REG(val) TEMP_FROM_REG((val) < 0 ? \
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(val) | 0x70 : (val))
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#define FAN_FROM_REG(reg, div) ((reg) ? (11250 * 60) / ((reg) * (div)) : 0)
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static int FAN_TO_REG(int reg, int div)
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@ -585,6 +591,14 @@ static ssize_t show_temp(struct device *dev,
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(((data->ext_temp[nr] >> ((nr - 1) * 3)) & 7));
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return sprintf(buf, "%d\n", TEMP_FROM_REG_EXT(data->temp[nr], ext));
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}
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static ssize_t show_temp_offset(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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int nr = to_sensor_dev_attr(attr)->index;
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struct adm1031_data *data = adm1031_update_device(dev);
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return sprintf(buf, "%d\n",
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TEMP_OFFSET_FROM_REG(data->temp_offset[nr]));
|
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}
|
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static ssize_t show_temp_min(struct device *dev,
|
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struct device_attribute *attr, char *buf)
|
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{
|
||||
@ -606,6 +620,24 @@ static ssize_t show_temp_crit(struct device *dev,
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struct adm1031_data *data = adm1031_update_device(dev);
|
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return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[nr]));
|
||||
}
|
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static ssize_t set_temp_offset(struct device *dev,
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struct device_attribute *attr, const char *buf,
|
||||
size_t count)
|
||||
{
|
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struct i2c_client *client = to_i2c_client(dev);
|
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struct adm1031_data *data = i2c_get_clientdata(client);
|
||||
int nr = to_sensor_dev_attr(attr)->index;
|
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int val;
|
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|
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val = simple_strtol(buf, NULL, 10);
|
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val = SENSORS_LIMIT(val, -15000, 15000);
|
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mutex_lock(&data->update_lock);
|
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data->temp_offset[nr] = TEMP_OFFSET_TO_REG(val);
|
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adm1031_write_value(client, ADM1031_REG_TEMP_OFFSET(nr),
|
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data->temp_offset[nr]);
|
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mutex_unlock(&data->update_lock);
|
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return count;
|
||||
}
|
||||
static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
|
||||
const char *buf, size_t count)
|
||||
{
|
||||
@ -661,6 +693,8 @@ static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr,
|
||||
#define temp_reg(offset) \
|
||||
static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
|
||||
show_temp, NULL, offset - 1); \
|
||||
static SENSOR_DEVICE_ATTR(temp##offset##_offset, S_IRUGO | S_IWUSR, \
|
||||
show_temp_offset, set_temp_offset, offset - 1); \
|
||||
static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \
|
||||
show_temp_min, set_temp_min, offset - 1); \
|
||||
static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \
|
||||
@ -714,6 +748,7 @@ static struct attribute *adm1031_attributes[] = {
|
||||
&sensor_dev_attr_pwm1.dev_attr.attr,
|
||||
&sensor_dev_attr_auto_fan1_channel.dev_attr.attr,
|
||||
&sensor_dev_attr_temp1_input.dev_attr.attr,
|
||||
&sensor_dev_attr_temp1_offset.dev_attr.attr,
|
||||
&sensor_dev_attr_temp1_min.dev_attr.attr,
|
||||
&sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
|
||||
&sensor_dev_attr_temp1_max.dev_attr.attr,
|
||||
@ -721,6 +756,7 @@ static struct attribute *adm1031_attributes[] = {
|
||||
&sensor_dev_attr_temp1_crit.dev_attr.attr,
|
||||
&sensor_dev_attr_temp1_crit_alarm.dev_attr.attr,
|
||||
&sensor_dev_attr_temp2_input.dev_attr.attr,
|
||||
&sensor_dev_attr_temp2_offset.dev_attr.attr,
|
||||
&sensor_dev_attr_temp2_min.dev_attr.attr,
|
||||
&sensor_dev_attr_temp2_min_alarm.dev_attr.attr,
|
||||
&sensor_dev_attr_temp2_max.dev_attr.attr,
|
||||
@ -757,6 +793,7 @@ static struct attribute *adm1031_attributes_opt[] = {
|
||||
&sensor_dev_attr_pwm2.dev_attr.attr,
|
||||
&sensor_dev_attr_auto_fan2_channel.dev_attr.attr,
|
||||
&sensor_dev_attr_temp3_input.dev_attr.attr,
|
||||
&sensor_dev_attr_temp3_offset.dev_attr.attr,
|
||||
&sensor_dev_attr_temp3_min.dev_attr.attr,
|
||||
&sensor_dev_attr_temp3_min_alarm.dev_attr.attr,
|
||||
&sensor_dev_attr_temp3_max.dev_attr.attr,
|
||||
@ -937,6 +974,9 @@ static struct adm1031_data *adm1031_update_device(struct device *dev)
|
||||
}
|
||||
data->temp[chan] = newh;
|
||||
|
||||
data->temp_offset[chan] =
|
||||
adm1031_read_value(client,
|
||||
ADM1031_REG_TEMP_OFFSET(chan));
|
||||
data->temp_min[chan] =
|
||||
adm1031_read_value(client,
|
||||
ADM1031_REG_TEMP_MIN(chan));
|
||||
|
||||
@ -157,17 +157,26 @@ static int __devinit adjust_tjmax(struct cpuinfo_x86 *c, u32 id, struct device *
|
||||
/* The 100C is default for both mobile and non mobile CPUs */
|
||||
|
||||
int tjmax = 100000;
|
||||
int ismobile = 1;
|
||||
int tjmax_ee = 85000;
|
||||
int usemsr_ee = 1;
|
||||
int err;
|
||||
u32 eax, edx;
|
||||
|
||||
/* Early chips have no MSR for TjMax */
|
||||
|
||||
if ((c->x86_model == 0xf) && (c->x86_mask < 4)) {
|
||||
ismobile = 0;
|
||||
usemsr_ee = 0;
|
||||
}
|
||||
|
||||
if ((c->x86_model > 0xe) && (ismobile)) {
|
||||
/* Atoms seems to have TjMax at 90C */
|
||||
|
||||
if (c->x86_model == 0x1c) {
|
||||
usemsr_ee = 0;
|
||||
tjmax = 90000;
|
||||
}
|
||||
|
||||
if ((c->x86_model > 0xe) && (usemsr_ee)) {
|
||||
u8 platform_id;
|
||||
|
||||
/* Now we can detect the mobile CPU using Intel provided table
|
||||
http://softwarecommunity.intel.com/Wiki/Mobility/720.htm
|
||||
@ -179,13 +188,29 @@ static int __devinit adjust_tjmax(struct cpuinfo_x86 *c, u32 id, struct device *
|
||||
dev_warn(dev,
|
||||
"Unable to access MSR 0x17, assuming desktop"
|
||||
" CPU\n");
|
||||
ismobile = 0;
|
||||
} else if (!(eax & 0x10000000)) {
|
||||
ismobile = 0;
|
||||
usemsr_ee = 0;
|
||||
} else if (c->x86_model < 0x17 && !(eax & 0x10000000)) {
|
||||
/* Trust bit 28 up to Penryn, I could not find any
|
||||
documentation on that; if you happen to know
|
||||
someone at Intel please ask */
|
||||
usemsr_ee = 0;
|
||||
} else {
|
||||
/* Platform ID bits 52:50 (EDX starts at bit 32) */
|
||||
platform_id = (edx >> 18) & 0x7;
|
||||
|
||||
/* Mobile Penryn CPU seems to be platform ID 7 or 5
|
||||
(guesswork) */
|
||||
if ((c->x86_model == 0x17) &&
|
||||
((platform_id == 5) || (platform_id == 7))) {
|
||||
/* If MSR EE bit is set, set it to 90 degrees C,
|
||||
otherwise 105 degrees C */
|
||||
tjmax_ee = 90000;
|
||||
tjmax = 105000;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (ismobile || c->x86_model == 0x1c) {
|
||||
if (usemsr_ee) {
|
||||
|
||||
err = rdmsr_safe_on_cpu(id, 0xee, &eax, &edx);
|
||||
if (err) {
|
||||
@ -193,9 +218,11 @@ static int __devinit adjust_tjmax(struct cpuinfo_x86 *c, u32 id, struct device *
|
||||
"Unable to access MSR 0xEE, for Tjmax, left"
|
||||
" at default");
|
||||
} else if (eax & 0x40000000) {
|
||||
tjmax = 85000;
|
||||
tjmax = tjmax_ee;
|
||||
}
|
||||
} else {
|
||||
/* if we dont use msr EE it means we are desktop CPU (with exeception
|
||||
of Atom) */
|
||||
} else if (tjmax == 100000) {
|
||||
dev_warn(dev, "Using relative temperature scale!\n");
|
||||
}
|
||||
|
||||
@ -248,9 +275,9 @@ static int __devinit coretemp_probe(struct platform_device *pdev)
|
||||
platform_set_drvdata(pdev, data);
|
||||
|
||||
/* read the still undocumented IA32_TEMPERATURE_TARGET it exists
|
||||
on older CPUs but not in this register */
|
||||
on older CPUs but not in this register, Atoms don't have it either */
|
||||
|
||||
if (c->x86_model > 0xe) {
|
||||
if ((c->x86_model > 0xe) && (c->x86_model != 0x1c)) {
|
||||
err = rdmsr_safe_on_cpu(data->id, 0x1a2, &eax, &edx);
|
||||
if (err) {
|
||||
dev_warn(&pdev->dev, "Unable to read"
|
||||
@ -413,11 +440,15 @@ static int __init coretemp_init(void)
|
||||
for_each_online_cpu(i) {
|
||||
struct cpuinfo_x86 *c = &cpu_data(i);
|
||||
|
||||
/* check if family 6, models 0xe, 0xf, 0x16, 0x17, 0x1A */
|
||||
/* check if family 6, models 0xe (Pentium M DC),
|
||||
0xf (Core 2 DC 65nm), 0x16 (Core 2 SC 65nm),
|
||||
0x17 (Penryn 45nm), 0x1a (Nehalem), 0x1c (Atom),
|
||||
0x1e (Lynnfield) */
|
||||
if ((c->cpuid_level < 0) || (c->x86 != 0x6) ||
|
||||
!((c->x86_model == 0xe) || (c->x86_model == 0xf) ||
|
||||
(c->x86_model == 0x16) || (c->x86_model == 0x17) ||
|
||||
(c->x86_model == 0x1A) || (c->x86_model == 0x1c))) {
|
||||
(c->x86_model == 0x1a) || (c->x86_model == 0x1c) ||
|
||||
(c->x86_model == 0x1e))) {
|
||||
|
||||
/* supported CPU not found, but report the unknown
|
||||
family 6 CPU */
|
||||
|
||||
@ -1,680 +0,0 @@
|
||||
/*
|
||||
* fscher.c - Part of lm_sensors, Linux kernel modules for hardware
|
||||
* monitoring
|
||||
* Copyright (C) 2003, 2004 Reinhard Nissl <rnissl@gmx.de>
|
||||
*
|
||||
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
|
||||
/*
|
||||
* fujitsu siemens hermes chip,
|
||||
* module based on fscpos.c
|
||||
* Copyright (C) 2000 Hermann Jung <hej@odn.de>
|
||||
* Copyright (C) 1998, 1999 Frodo Looijaard <frodol@dds.nl>
|
||||
* and Philip Edelbrock <phil@netroedge.com>
|
||||
*/
|
||||
|
||||
#include <linux/module.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/slab.h>
|
||||
#include <linux/jiffies.h>
|
||||
#include <linux/i2c.h>
|
||||
#include <linux/hwmon.h>
|
||||
#include <linux/err.h>
|
||||
#include <linux/mutex.h>
|
||||
#include <linux/sysfs.h>
|
||||
|
||||
/*
|
||||
* Addresses to scan
|
||||
*/
|
||||
|
||||
static const unsigned short normal_i2c[] = { 0x73, I2C_CLIENT_END };
|
||||
|
||||
/*
|
||||
* Insmod parameters
|
||||
*/
|
||||
|
||||
I2C_CLIENT_INSMOD_1(fscher);
|
||||
|
||||
/*
|
||||
* The FSCHER registers
|
||||
*/
|
||||
|
||||
/* chip identification */
|
||||
#define FSCHER_REG_IDENT_0 0x00
|
||||
#define FSCHER_REG_IDENT_1 0x01
|
||||
#define FSCHER_REG_IDENT_2 0x02
|
||||
#define FSCHER_REG_REVISION 0x03
|
||||
|
||||
/* global control and status */
|
||||
#define FSCHER_REG_EVENT_STATE 0x04
|
||||
#define FSCHER_REG_CONTROL 0x05
|
||||
|
||||
/* watchdog */
|
||||
#define FSCHER_REG_WDOG_PRESET 0x28
|
||||
#define FSCHER_REG_WDOG_STATE 0x23
|
||||
#define FSCHER_REG_WDOG_CONTROL 0x21
|
||||
|
||||
/* fan 0 */
|
||||
#define FSCHER_REG_FAN0_MIN 0x55
|
||||
#define FSCHER_REG_FAN0_ACT 0x0e
|
||||
#define FSCHER_REG_FAN0_STATE 0x0d
|
||||
#define FSCHER_REG_FAN0_RIPPLE 0x0f
|
||||
|
||||
/* fan 1 */
|
||||
#define FSCHER_REG_FAN1_MIN 0x65
|
||||
#define FSCHER_REG_FAN1_ACT 0x6b
|
||||
#define FSCHER_REG_FAN1_STATE 0x62
|
||||
#define FSCHER_REG_FAN1_RIPPLE 0x6f
|
||||
|
||||
/* fan 2 */
|
||||
#define FSCHER_REG_FAN2_MIN 0xb5
|
||||
#define FSCHER_REG_FAN2_ACT 0xbb
|
||||
#define FSCHER_REG_FAN2_STATE 0xb2
|
||||
#define FSCHER_REG_FAN2_RIPPLE 0xbf
|
||||
|
||||
/* voltage supervision */
|
||||
#define FSCHER_REG_VOLT_12 0x45
|
||||
#define FSCHER_REG_VOLT_5 0x42
|
||||
#define FSCHER_REG_VOLT_BATT 0x48
|
||||
|
||||
/* temperature 0 */
|
||||
#define FSCHER_REG_TEMP0_ACT 0x64
|
||||
#define FSCHER_REG_TEMP0_STATE 0x71
|
||||
|
||||
/* temperature 1 */
|
||||
#define FSCHER_REG_TEMP1_ACT 0x32
|
||||
#define FSCHER_REG_TEMP1_STATE 0x81
|
||||
|
||||
/* temperature 2 */
|
||||
#define FSCHER_REG_TEMP2_ACT 0x35
|
||||
#define FSCHER_REG_TEMP2_STATE 0x91
|
||||
|
||||
/*
|
||||
* Functions declaration
|
||||
*/
|
||||
|
||||
static int fscher_probe(struct i2c_client *client,
|
||||
const struct i2c_device_id *id);
|
||||
static int fscher_detect(struct i2c_client *client, int kind,
|
||||
struct i2c_board_info *info);
|
||||
static int fscher_remove(struct i2c_client *client);
|
||||
static struct fscher_data *fscher_update_device(struct device *dev);
|
||||
static void fscher_init_client(struct i2c_client *client);
|
||||
|
||||
static int fscher_read_value(struct i2c_client *client, u8 reg);
|
||||
static int fscher_write_value(struct i2c_client *client, u8 reg, u8 value);
|
||||
|
||||
/*
|
||||
* Driver data (common to all clients)
|
||||
*/
|
||||
|
||||
static const struct i2c_device_id fscher_id[] = {
|
||||
{ "fscher", fscher },
|
||||
{ }
|
||||
};
|
||||
|
||||
static struct i2c_driver fscher_driver = {
|
||||
.class = I2C_CLASS_HWMON,
|
||||
.driver = {
|
||||
.name = "fscher",
|
||||
},
|
||||
.probe = fscher_probe,
|
||||
.remove = fscher_remove,
|
||||
.id_table = fscher_id,
|
||||
.detect = fscher_detect,
|
||||
.address_data = &addr_data,
|
||||
};
|
||||
|
||||
/*
|
||||
* Client data (each client gets its own)
|
||||
*/
|
||||
|
||||
struct fscher_data {
|
||||
struct device *hwmon_dev;
|
||||
struct mutex update_lock;
|
||||
char valid; /* zero until following fields are valid */
|
||||
unsigned long last_updated; /* in jiffies */
|
||||
|
||||
/* register values */
|
||||
u8 revision; /* revision of chip */
|
||||
u8 global_event; /* global event status */
|
||||
u8 global_control; /* global control register */
|
||||
u8 watchdog[3]; /* watchdog */
|
||||
u8 volt[3]; /* 12, 5, battery voltage */
|
||||
u8 temp_act[3]; /* temperature */
|
||||
u8 temp_status[3]; /* status of sensor */
|
||||
u8 fan_act[3]; /* fans revolutions per second */
|
||||
u8 fan_status[3]; /* fan status */
|
||||
u8 fan_min[3]; /* fan min value for rps */
|
||||
u8 fan_ripple[3]; /* divider for rps */
|
||||
};
|
||||
|
||||
/*
|
||||
* Sysfs stuff
|
||||
*/
|
||||
|
||||
#define sysfs_r(kind, sub, offset, reg) \
|
||||
static ssize_t show_##kind##sub (struct fscher_data *, char *, int); \
|
||||
static ssize_t show_##kind##offset##sub (struct device *, struct device_attribute *attr, char *); \
|
||||
static ssize_t show_##kind##offset##sub (struct device *dev, struct device_attribute *attr, char *buf) \
|
||||
{ \
|
||||
struct fscher_data *data = fscher_update_device(dev); \
|
||||
return show_##kind##sub(data, buf, (offset)); \
|
||||
}
|
||||
|
||||
#define sysfs_w(kind, sub, offset, reg) \
|
||||
static ssize_t set_##kind##sub (struct i2c_client *, struct fscher_data *, const char *, size_t, int, int); \
|
||||
static ssize_t set_##kind##offset##sub (struct device *, struct device_attribute *attr, const char *, size_t); \
|
||||
static ssize_t set_##kind##offset##sub (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \
|
||||
{ \
|
||||
struct i2c_client *client = to_i2c_client(dev); \
|
||||
struct fscher_data *data = i2c_get_clientdata(client); \
|
||||
return set_##kind##sub(client, data, buf, count, (offset), reg); \
|
||||
}
|
||||
|
||||
#define sysfs_rw_n(kind, sub, offset, reg) \
|
||||
sysfs_r(kind, sub, offset, reg) \
|
||||
sysfs_w(kind, sub, offset, reg) \
|
||||
static DEVICE_ATTR(kind##offset##sub, S_IRUGO | S_IWUSR, show_##kind##offset##sub, set_##kind##offset##sub);
|
||||
|
||||
#define sysfs_rw(kind, sub, reg) \
|
||||
sysfs_r(kind, sub, 0, reg) \
|
||||
sysfs_w(kind, sub, 0, reg) \
|
||||
static DEVICE_ATTR(kind##sub, S_IRUGO | S_IWUSR, show_##kind##0##sub, set_##kind##0##sub);
|
||||
|
||||
#define sysfs_ro_n(kind, sub, offset, reg) \
|
||||
sysfs_r(kind, sub, offset, reg) \
|
||||
static DEVICE_ATTR(kind##offset##sub, S_IRUGO, show_##kind##offset##sub, NULL);
|
||||
|
||||
#define sysfs_ro(kind, sub, reg) \
|
||||
sysfs_r(kind, sub, 0, reg) \
|
||||
static DEVICE_ATTR(kind, S_IRUGO, show_##kind##0##sub, NULL);
|
||||
|
||||
#define sysfs_fan(offset, reg_status, reg_min, reg_ripple, reg_act) \
|
||||
sysfs_rw_n(pwm, , offset, reg_min) \
|
||||
sysfs_rw_n(fan, _status, offset, reg_status) \
|
||||
sysfs_rw_n(fan, _div , offset, reg_ripple) \
|
||||
sysfs_ro_n(fan, _input , offset, reg_act)
|
||||
|
||||
#define sysfs_temp(offset, reg_status, reg_act) \
|
||||
sysfs_rw_n(temp, _status, offset, reg_status) \
|
||||
sysfs_ro_n(temp, _input , offset, reg_act)
|
||||
|
||||
#define sysfs_in(offset, reg_act) \
|
||||
sysfs_ro_n(in, _input, offset, reg_act)
|
||||
|
||||
#define sysfs_revision(reg_revision) \
|
||||
sysfs_ro(revision, , reg_revision)
|
||||
|
||||
#define sysfs_alarms(reg_events) \
|
||||
sysfs_ro(alarms, , reg_events)
|
||||
|
||||
#define sysfs_control(reg_control) \
|
||||
sysfs_rw(control, , reg_control)
|
||||
|
||||
#define sysfs_watchdog(reg_control, reg_status, reg_preset) \
|
||||
sysfs_rw(watchdog, _control, reg_control) \
|
||||
sysfs_rw(watchdog, _status , reg_status) \
|
||||
sysfs_rw(watchdog, _preset , reg_preset)
|
||||
|
||||
sysfs_fan(1, FSCHER_REG_FAN0_STATE, FSCHER_REG_FAN0_MIN,
|
||||
FSCHER_REG_FAN0_RIPPLE, FSCHER_REG_FAN0_ACT)
|
||||
sysfs_fan(2, FSCHER_REG_FAN1_STATE, FSCHER_REG_FAN1_MIN,
|
||||
FSCHER_REG_FAN1_RIPPLE, FSCHER_REG_FAN1_ACT)
|
||||
sysfs_fan(3, FSCHER_REG_FAN2_STATE, FSCHER_REG_FAN2_MIN,
|
||||
FSCHER_REG_FAN2_RIPPLE, FSCHER_REG_FAN2_ACT)
|
||||
|
||||
sysfs_temp(1, FSCHER_REG_TEMP0_STATE, FSCHER_REG_TEMP0_ACT)
|
||||
sysfs_temp(2, FSCHER_REG_TEMP1_STATE, FSCHER_REG_TEMP1_ACT)
|
||||
sysfs_temp(3, FSCHER_REG_TEMP2_STATE, FSCHER_REG_TEMP2_ACT)
|
||||
|
||||
sysfs_in(0, FSCHER_REG_VOLT_12)
|
||||
sysfs_in(1, FSCHER_REG_VOLT_5)
|
||||
sysfs_in(2, FSCHER_REG_VOLT_BATT)
|
||||
|
||||
sysfs_revision(FSCHER_REG_REVISION)
|
||||
sysfs_alarms(FSCHER_REG_EVENTS)
|
||||
sysfs_control(FSCHER_REG_CONTROL)
|
||||
sysfs_watchdog(FSCHER_REG_WDOG_CONTROL, FSCHER_REG_WDOG_STATE, FSCHER_REG_WDOG_PRESET)
|
||||
|
||||
static struct attribute *fscher_attributes[] = {
|
||||
&dev_attr_revision.attr,
|
||||
&dev_attr_alarms.attr,
|
||||
&dev_attr_control.attr,
|
||||
|
||||
&dev_attr_watchdog_status.attr,
|
||||
&dev_attr_watchdog_control.attr,
|
||||
&dev_attr_watchdog_preset.attr,
|
||||
|
||||
&dev_attr_in0_input.attr,
|
||||
&dev_attr_in1_input.attr,
|
||||
&dev_attr_in2_input.attr,
|
||||
|
||||
&dev_attr_fan1_status.attr,
|
||||
&dev_attr_fan1_div.attr,
|
||||
&dev_attr_fan1_input.attr,
|
||||
&dev_attr_pwm1.attr,
|
||||
&dev_attr_fan2_status.attr,
|
||||
&dev_attr_fan2_div.attr,
|
||||
&dev_attr_fan2_input.attr,
|
||||
&dev_attr_pwm2.attr,
|
||||
&dev_attr_fan3_status.attr,
|
||||
&dev_attr_fan3_div.attr,
|
||||
&dev_attr_fan3_input.attr,
|
||||
&dev_attr_pwm3.attr,
|
||||
|
||||
&dev_attr_temp1_status.attr,
|
||||
&dev_attr_temp1_input.attr,
|
||||
&dev_attr_temp2_status.attr,
|
||||
&dev_attr_temp2_input.attr,
|
||||
&dev_attr_temp3_status.attr,
|
||||
&dev_attr_temp3_input.attr,
|
||||
NULL
|
||||
};
|
||||
|
||||
static const struct attribute_group fscher_group = {
|
||||
.attrs = fscher_attributes,
|
||||
};
|
||||
|
||||
/*
|
||||
* Real code
|
||||
*/
|
||||
|
||||
/* Return 0 if detection is successful, -ENODEV otherwise */
|
||||
static int fscher_detect(struct i2c_client *new_client, int kind,
|
||||
struct i2c_board_info *info)
|
||||
{
|
||||
struct i2c_adapter *adapter = new_client->adapter;
|
||||
|
||||
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
|
||||
return -ENODEV;
|
||||
|
||||
/* Do the remaining detection unless force or force_fscher parameter */
|
||||
if (kind < 0) {
|
||||
if ((i2c_smbus_read_byte_data(new_client,
|
||||
FSCHER_REG_IDENT_0) != 0x48) /* 'H' */
|
||||
|| (i2c_smbus_read_byte_data(new_client,
|
||||
FSCHER_REG_IDENT_1) != 0x45) /* 'E' */
|
||||
|| (i2c_smbus_read_byte_data(new_client,
|
||||
FSCHER_REG_IDENT_2) != 0x52)) /* 'R' */
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
strlcpy(info->type, "fscher", I2C_NAME_SIZE);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int fscher_probe(struct i2c_client *new_client,
|
||||
const struct i2c_device_id *id)
|
||||
{
|
||||
struct fscher_data *data;
|
||||
int err;
|
||||
|
||||
data = kzalloc(sizeof(struct fscher_data), GFP_KERNEL);
|
||||
if (!data) {
|
||||
err = -ENOMEM;
|
||||
goto exit;
|
||||
}
|
||||
|
||||
i2c_set_clientdata(new_client, data);
|
||||
data->valid = 0;
|
||||
mutex_init(&data->update_lock);
|
||||
|
||||
fscher_init_client(new_client);
|
||||
|
||||
/* Register sysfs hooks */
|
||||
if ((err = sysfs_create_group(&new_client->dev.kobj, &fscher_group)))
|
||||
goto exit_free;
|
||||
|
||||
data->hwmon_dev = hwmon_device_register(&new_client->dev);
|
||||
if (IS_ERR(data->hwmon_dev)) {
|
||||
err = PTR_ERR(data->hwmon_dev);
|
||||
goto exit_remove_files;
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
exit_remove_files:
|
||||
sysfs_remove_group(&new_client->dev.kobj, &fscher_group);
|
||||
exit_free:
|
||||
kfree(data);
|
||||
exit:
|
||||
return err;
|
||||
}
|
||||
|
||||
static int fscher_remove(struct i2c_client *client)
|
||||
{
|
||||
struct fscher_data *data = i2c_get_clientdata(client);
|
||||
|
||||
hwmon_device_unregister(data->hwmon_dev);
|
||||
sysfs_remove_group(&client->dev.kobj, &fscher_group);
|
||||
|
||||
kfree(data);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int fscher_read_value(struct i2c_client *client, u8 reg)
|
||||
{
|
||||
dev_dbg(&client->dev, "read reg 0x%02x\n", reg);
|
||||
|
||||
return i2c_smbus_read_byte_data(client, reg);
|
||||
}
|
||||
|
||||
static int fscher_write_value(struct i2c_client *client, u8 reg, u8 value)
|
||||
{
|
||||
dev_dbg(&client->dev, "write reg 0x%02x, val 0x%02x\n",
|
||||
reg, value);
|
||||
|
||||
return i2c_smbus_write_byte_data(client, reg, value);
|
||||
}
|
||||
|
||||
/* Called when we have found a new FSC Hermes. */
|
||||
static void fscher_init_client(struct i2c_client *client)
|
||||
{
|
||||
struct fscher_data *data = i2c_get_clientdata(client);
|
||||
|
||||
/* Read revision from chip */
|
||||
data->revision = fscher_read_value(client, FSCHER_REG_REVISION);
|
||||
}
|
||||
|
||||
static struct fscher_data *fscher_update_device(struct device *dev)
|
||||
{
|
||||
struct i2c_client *client = to_i2c_client(dev);
|
||||
struct fscher_data *data = i2c_get_clientdata(client);
|
||||
|
||||
mutex_lock(&data->update_lock);
|
||||
|
||||
if (time_after(jiffies, data->last_updated + 2 * HZ) || !data->valid) {
|
||||
|
||||
dev_dbg(&client->dev, "Starting fscher update\n");
|
||||
|
||||
data->temp_act[0] = fscher_read_value(client, FSCHER_REG_TEMP0_ACT);
|
||||
data->temp_act[1] = fscher_read_value(client, FSCHER_REG_TEMP1_ACT);
|
||||
data->temp_act[2] = fscher_read_value(client, FSCHER_REG_TEMP2_ACT);
|
||||
data->temp_status[0] = fscher_read_value(client, FSCHER_REG_TEMP0_STATE);
|
||||
data->temp_status[1] = fscher_read_value(client, FSCHER_REG_TEMP1_STATE);
|
||||
data->temp_status[2] = fscher_read_value(client, FSCHER_REG_TEMP2_STATE);
|
||||
|
||||
data->volt[0] = fscher_read_value(client, FSCHER_REG_VOLT_12);
|
||||
data->volt[1] = fscher_read_value(client, FSCHER_REG_VOLT_5);
|
||||
data->volt[2] = fscher_read_value(client, FSCHER_REG_VOLT_BATT);
|
||||
|
||||
data->fan_act[0] = fscher_read_value(client, FSCHER_REG_FAN0_ACT);
|
||||
data->fan_act[1] = fscher_read_value(client, FSCHER_REG_FAN1_ACT);
|
||||
data->fan_act[2] = fscher_read_value(client, FSCHER_REG_FAN2_ACT);
|
||||
data->fan_status[0] = fscher_read_value(client, FSCHER_REG_FAN0_STATE);
|
||||
data->fan_status[1] = fscher_read_value(client, FSCHER_REG_FAN1_STATE);
|
||||
data->fan_status[2] = fscher_read_value(client, FSCHER_REG_FAN2_STATE);
|
||||
data->fan_min[0] = fscher_read_value(client, FSCHER_REG_FAN0_MIN);
|
||||
data->fan_min[1] = fscher_read_value(client, FSCHER_REG_FAN1_MIN);
|
||||
data->fan_min[2] = fscher_read_value(client, FSCHER_REG_FAN2_MIN);
|
||||
data->fan_ripple[0] = fscher_read_value(client, FSCHER_REG_FAN0_RIPPLE);
|
||||
data->fan_ripple[1] = fscher_read_value(client, FSCHER_REG_FAN1_RIPPLE);
|
||||
data->fan_ripple[2] = fscher_read_value(client, FSCHER_REG_FAN2_RIPPLE);
|
||||
|
||||
data->watchdog[0] = fscher_read_value(client, FSCHER_REG_WDOG_PRESET);
|
||||
data->watchdog[1] = fscher_read_value(client, FSCHER_REG_WDOG_STATE);
|
||||
data->watchdog[2] = fscher_read_value(client, FSCHER_REG_WDOG_CONTROL);
|
||||
|
||||
data->global_event = fscher_read_value(client, FSCHER_REG_EVENT_STATE);
|
||||
data->global_control = fscher_read_value(client,
|
||||
FSCHER_REG_CONTROL);
|
||||
|
||||
data->last_updated = jiffies;
|
||||
data->valid = 1;
|
||||
}
|
||||
|
||||
mutex_unlock(&data->update_lock);
|
||||
|
||||
return data;
|
||||
}
|
||||
|
||||
|
||||
|
||||
#define FAN_INDEX_FROM_NUM(nr) ((nr) - 1)
|
||||
|
||||
static ssize_t set_fan_status(struct i2c_client *client, struct fscher_data *data,
|
||||
const char *buf, size_t count, int nr, int reg)
|
||||
{
|
||||
/* bits 0..1, 3..7 reserved => mask with 0x04 */
|
||||
unsigned long v = simple_strtoul(buf, NULL, 10) & 0x04;
|
||||
|
||||
mutex_lock(&data->update_lock);
|
||||
data->fan_status[FAN_INDEX_FROM_NUM(nr)] &= ~v;
|
||||
fscher_write_value(client, reg, v);
|
||||
mutex_unlock(&data->update_lock);
|
||||
return count;
|
||||
}
|
||||
|
||||
static ssize_t show_fan_status(struct fscher_data *data, char *buf, int nr)
|
||||
{
|
||||
/* bits 0..1, 3..7 reserved => mask with 0x04 */
|
||||
return sprintf(buf, "%u\n", data->fan_status[FAN_INDEX_FROM_NUM(nr)] & 0x04);
|
||||
}
|
||||
|
||||
static ssize_t set_pwm(struct i2c_client *client, struct fscher_data *data,
|
||||
const char *buf, size_t count, int nr, int reg)
|
||||
{
|
||||
unsigned long v = simple_strtoul(buf, NULL, 10);
|
||||
|
||||
mutex_lock(&data->update_lock);
|
||||
data->fan_min[FAN_INDEX_FROM_NUM(nr)] = v > 0xff ? 0xff : v;
|
||||
fscher_write_value(client, reg, data->fan_min[FAN_INDEX_FROM_NUM(nr)]);
|
||||
mutex_unlock(&data->update_lock);
|
||||
return count;
|
||||
}
|
||||
|
||||
static ssize_t show_pwm(struct fscher_data *data, char *buf, int nr)
|
||||
{
|
||||
return sprintf(buf, "%u\n", data->fan_min[FAN_INDEX_FROM_NUM(nr)]);
|
||||
}
|
||||
|
||||
static ssize_t set_fan_div(struct i2c_client *client, struct fscher_data *data,
|
||||
const char *buf, size_t count, int nr, int reg)
|
||||
{
|
||||
/* supported values: 2, 4, 8 */
|
||||
unsigned long v = simple_strtoul(buf, NULL, 10);
|
||||
|
||||
switch (v) {
|
||||
case 2: v = 1; break;
|
||||
case 4: v = 2; break;
|
||||
case 8: v = 3; break;
|
||||
default:
|
||||
dev_err(&client->dev, "fan_div value %ld not "
|
||||
"supported. Choose one of 2, 4 or 8!\n", v);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
mutex_lock(&data->update_lock);
|
||||
|
||||
/* bits 2..7 reserved => mask with 0x03 */
|
||||
data->fan_ripple[FAN_INDEX_FROM_NUM(nr)] &= ~0x03;
|
||||
data->fan_ripple[FAN_INDEX_FROM_NUM(nr)] |= v;
|
||||
|
||||
fscher_write_value(client, reg, data->fan_ripple[FAN_INDEX_FROM_NUM(nr)]);
|
||||
mutex_unlock(&data->update_lock);
|
||||
return count;
|
||||
}
|
||||
|
||||
static ssize_t show_fan_div(struct fscher_data *data, char *buf, int nr)
|
||||
{
|
||||
/* bits 2..7 reserved => mask with 0x03 */
|
||||
return sprintf(buf, "%u\n", 1 << (data->fan_ripple[FAN_INDEX_FROM_NUM(nr)] & 0x03));
|
||||
}
|
||||
|
||||
#define RPM_FROM_REG(val) (val*60)
|
||||
|
||||
static ssize_t show_fan_input (struct fscher_data *data, char *buf, int nr)
|
||||
{
|
||||
return sprintf(buf, "%u\n", RPM_FROM_REG(data->fan_act[FAN_INDEX_FROM_NUM(nr)]));
|
||||
}
|
||||
|
||||
|
||||
|
||||
#define TEMP_INDEX_FROM_NUM(nr) ((nr) - 1)
|
||||
|
||||
static ssize_t set_temp_status(struct i2c_client *client, struct fscher_data *data,
|
||||
const char *buf, size_t count, int nr, int reg)
|
||||
{
|
||||
/* bits 2..7 reserved, 0 read only => mask with 0x02 */
|
||||
unsigned long v = simple_strtoul(buf, NULL, 10) & 0x02;
|
||||
|
||||
mutex_lock(&data->update_lock);
|
||||
data->temp_status[TEMP_INDEX_FROM_NUM(nr)] &= ~v;
|
||||
fscher_write_value(client, reg, v);
|
||||
mutex_unlock(&data->update_lock);
|
||||
return count;
|
||||
}
|
||||
|
||||
static ssize_t show_temp_status(struct fscher_data *data, char *buf, int nr)
|
||||
{
|
||||
/* bits 2..7 reserved => mask with 0x03 */
|
||||
return sprintf(buf, "%u\n", data->temp_status[TEMP_INDEX_FROM_NUM(nr)] & 0x03);
|
||||
}
|
||||
|
||||
#define TEMP_FROM_REG(val) (((val) - 128) * 1000)
|
||||
|
||||
static ssize_t show_temp_input(struct fscher_data *data, char *buf, int nr)
|
||||
{
|
||||
return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_act[TEMP_INDEX_FROM_NUM(nr)]));
|
||||
}
|
||||
|
||||
/*
|
||||
* The final conversion is specified in sensors.conf, as it depends on
|
||||
* mainboard specific values. We export the registers contents as
|
||||
* pseudo-hundredths-of-Volts (range 0V - 2.55V). Not that it makes much
|
||||
* sense per se, but it minimizes the conversions count and keeps the
|
||||
* values within a usual range.
|
||||
*/
|
||||
#define VOLT_FROM_REG(val) ((val) * 10)
|
||||
|
||||
static ssize_t show_in_input(struct fscher_data *data, char *buf, int nr)
|
||||
{
|
||||
return sprintf(buf, "%u\n", VOLT_FROM_REG(data->volt[nr]));
|
||||
}
|
||||
|
||||
|
||||
|
||||
static ssize_t show_revision(struct fscher_data *data, char *buf, int nr)
|
||||
{
|
||||
return sprintf(buf, "%u\n", data->revision);
|
||||
}
|
||||
|
||||
|
||||
|
||||
static ssize_t show_alarms(struct fscher_data *data, char *buf, int nr)
|
||||
{
|
||||
/* bits 2, 5..6 reserved => mask with 0x9b */
|
||||
return sprintf(buf, "%u\n", data->global_event & 0x9b);
|
||||
}
|
||||
|
||||
|
||||
|
||||
static ssize_t set_control(struct i2c_client *client, struct fscher_data *data,
|
||||
const char *buf, size_t count, int nr, int reg)
|
||||
{
|
||||
/* bits 1..7 reserved => mask with 0x01 */
|
||||
unsigned long v = simple_strtoul(buf, NULL, 10) & 0x01;
|
||||
|
||||
mutex_lock(&data->update_lock);
|
||||
data->global_control = v;
|
||||
fscher_write_value(client, reg, v);
|
||||
mutex_unlock(&data->update_lock);
|
||||
return count;
|
||||
}
|
||||
|
||||
static ssize_t show_control(struct fscher_data *data, char *buf, int nr)
|
||||
{
|
||||
/* bits 1..7 reserved => mask with 0x01 */
|
||||
return sprintf(buf, "%u\n", data->global_control & 0x01);
|
||||
}
|
||||
|
||||
|
||||
|
||||
static ssize_t set_watchdog_control(struct i2c_client *client, struct
|
||||
fscher_data *data, const char *buf, size_t count,
|
||||
int nr, int reg)
|
||||
{
|
||||
/* bits 0..3 reserved => mask with 0xf0 */
|
||||
unsigned long v = simple_strtoul(buf, NULL, 10) & 0xf0;
|
||||
|
||||
mutex_lock(&data->update_lock);
|
||||
data->watchdog[2] &= ~0xf0;
|
||||
data->watchdog[2] |= v;
|
||||
fscher_write_value(client, reg, data->watchdog[2]);
|
||||
mutex_unlock(&data->update_lock);
|
||||
return count;
|
||||
}
|
||||
|
||||
static ssize_t show_watchdog_control(struct fscher_data *data, char *buf, int nr)
|
||||
{
|
||||
/* bits 0..3 reserved, bit 5 write only => mask with 0xd0 */
|
||||
return sprintf(buf, "%u\n", data->watchdog[2] & 0xd0);
|
||||
}
|
||||
|
||||
static ssize_t set_watchdog_status(struct i2c_client *client, struct fscher_data *data,
|
||||
const char *buf, size_t count, int nr, int reg)
|
||||
{
|
||||
/* bits 0, 2..7 reserved => mask with 0x02 */
|
||||
unsigned long v = simple_strtoul(buf, NULL, 10) & 0x02;
|
||||
|
||||
mutex_lock(&data->update_lock);
|
||||
data->watchdog[1] &= ~v;
|
||||
fscher_write_value(client, reg, v);
|
||||
mutex_unlock(&data->update_lock);
|
||||
return count;
|
||||
}
|
||||
|
||||
static ssize_t show_watchdog_status(struct fscher_data *data, char *buf, int nr)
|
||||
{
|
||||
/* bits 0, 2..7 reserved => mask with 0x02 */
|
||||
return sprintf(buf, "%u\n", data->watchdog[1] & 0x02);
|
||||
}
|
||||
|
||||
static ssize_t set_watchdog_preset(struct i2c_client *client, struct fscher_data *data,
|
||||
const char *buf, size_t count, int nr, int reg)
|
||||
{
|
||||
unsigned long v = simple_strtoul(buf, NULL, 10) & 0xff;
|
||||
|
||||
mutex_lock(&data->update_lock);
|
||||
data->watchdog[0] = v;
|
||||
fscher_write_value(client, reg, data->watchdog[0]);
|
||||
mutex_unlock(&data->update_lock);
|
||||
return count;
|
||||
}
|
||||
|
||||
static ssize_t show_watchdog_preset(struct fscher_data *data, char *buf, int nr)
|
||||
{
|
||||
return sprintf(buf, "%u\n", data->watchdog[0]);
|
||||
}
|
||||
|
||||
static int __init sensors_fscher_init(void)
|
||||
{
|
||||
return i2c_add_driver(&fscher_driver);
|
||||
}
|
||||
|
||||
static void __exit sensors_fscher_exit(void)
|
||||
{
|
||||
i2c_del_driver(&fscher_driver);
|
||||
}
|
||||
|
||||
MODULE_AUTHOR("Reinhard Nissl <rnissl@gmx.de>");
|
||||
MODULE_DESCRIPTION("FSC Hermes driver");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
module_init(sensors_fscher_init);
|
||||
module_exit(sensors_fscher_exit);
|
||||
@ -1,654 +0,0 @@
|
||||
/*
|
||||
fscpos.c - Kernel module for hardware monitoring with FSC Poseidon chips
|
||||
Copyright (C) 2004, 2005 Stefan Ott <stefan@desire.ch>
|
||||
|
||||
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., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
|
||||
/*
|
||||
fujitsu siemens poseidon chip,
|
||||
module based on the old fscpos module by Hermann Jung <hej@odn.de> and
|
||||
the fscher module by Reinhard Nissl <rnissl@gmx.de>
|
||||
|
||||
original module based on lm80.c
|
||||
Copyright (C) 1998, 1999 Frodo Looijaard <frodol@dds.nl>
|
||||
and Philip Edelbrock <phil@netroedge.com>
|
||||
|
||||
Thanks to Jean Delvare for reviewing my code and suggesting a lot of
|
||||
improvements.
|
||||
*/
|
||||
|
||||
#include <linux/module.h>
|
||||
#include <linux/slab.h>
|
||||
#include <linux/jiffies.h>
|
||||
#include <linux/i2c.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/hwmon.h>
|
||||
#include <linux/err.h>
|
||||
#include <linux/mutex.h>
|
||||
#include <linux/sysfs.h>
|
||||
|
||||
/*
|
||||
* Addresses to scan
|
||||
*/
|
||||
static const unsigned short normal_i2c[] = { 0x73, I2C_CLIENT_END };
|
||||
|
||||
/*
|
||||
* Insmod parameters
|
||||
*/
|
||||
I2C_CLIENT_INSMOD_1(fscpos);
|
||||
|
||||
/*
|
||||
* The FSCPOS registers
|
||||
*/
|
||||
|
||||
/* chip identification */
|
||||
#define FSCPOS_REG_IDENT_0 0x00
|
||||
#define FSCPOS_REG_IDENT_1 0x01
|
||||
#define FSCPOS_REG_IDENT_2 0x02
|
||||
#define FSCPOS_REG_REVISION 0x03
|
||||
|
||||
/* global control and status */
|
||||
#define FSCPOS_REG_EVENT_STATE 0x04
|
||||
#define FSCPOS_REG_CONTROL 0x05
|
||||
|
||||
/* watchdog */
|
||||
#define FSCPOS_REG_WDOG_PRESET 0x28
|
||||
#define FSCPOS_REG_WDOG_STATE 0x23
|
||||
#define FSCPOS_REG_WDOG_CONTROL 0x21
|
||||
|
||||
/* voltages */
|
||||
#define FSCPOS_REG_VOLT_12 0x45
|
||||
#define FSCPOS_REG_VOLT_5 0x42
|
||||
#define FSCPOS_REG_VOLT_BATT 0x48
|
||||
|
||||
/* fans - the chip does not support minimum speed for fan2 */
|
||||
static u8 FSCPOS_REG_PWM[] = { 0x55, 0x65 };
|
||||
static u8 FSCPOS_REG_FAN_ACT[] = { 0x0e, 0x6b, 0xab };
|
||||
static u8 FSCPOS_REG_FAN_STATE[] = { 0x0d, 0x62, 0xa2 };
|
||||
static u8 FSCPOS_REG_FAN_RIPPLE[] = { 0x0f, 0x6f, 0xaf };
|
||||
|
||||
/* temperatures */
|
||||
static u8 FSCPOS_REG_TEMP_ACT[] = { 0x64, 0x32, 0x35 };
|
||||
static u8 FSCPOS_REG_TEMP_STATE[] = { 0x71, 0x81, 0x91 };
|
||||
|
||||
/*
|
||||
* Functions declaration
|
||||
*/
|
||||
static int fscpos_probe(struct i2c_client *client,
|
||||
const struct i2c_device_id *id);
|
||||
static int fscpos_detect(struct i2c_client *client, int kind,
|
||||
struct i2c_board_info *info);
|
||||
static int fscpos_remove(struct i2c_client *client);
|
||||
|
||||
static int fscpos_read_value(struct i2c_client *client, u8 reg);
|
||||
static int fscpos_write_value(struct i2c_client *client, u8 reg, u8 value);
|
||||
static struct fscpos_data *fscpos_update_device(struct device *dev);
|
||||
static void fscpos_init_client(struct i2c_client *client);
|
||||
|
||||
static void reset_fan_alarm(struct i2c_client *client, int nr);
|
||||
|
||||
/*
|
||||
* Driver data (common to all clients)
|
||||
*/
|
||||
static const struct i2c_device_id fscpos_id[] = {
|
||||
{ "fscpos", fscpos },
|
||||
{ }
|
||||
};
|
||||
|
||||
static struct i2c_driver fscpos_driver = {
|
||||
.class = I2C_CLASS_HWMON,
|
||||
.driver = {
|
||||
.name = "fscpos",
|
||||
},
|
||||
.probe = fscpos_probe,
|
||||
.remove = fscpos_remove,
|
||||
.id_table = fscpos_id,
|
||||
.detect = fscpos_detect,
|
||||
.address_data = &addr_data,
|
||||
};
|
||||
|
||||
/*
|
||||
* Client data (each client gets its own)
|
||||
*/
|
||||
struct fscpos_data {
|
||||
struct device *hwmon_dev;
|
||||
struct mutex update_lock;
|
||||
char valid; /* 0 until following fields are valid */
|
||||
unsigned long last_updated; /* In jiffies */
|
||||
|
||||
/* register values */
|
||||
u8 revision; /* revision of chip */
|
||||
u8 global_event; /* global event status */
|
||||
u8 global_control; /* global control register */
|
||||
u8 wdog_control; /* watchdog control */
|
||||
u8 wdog_state; /* watchdog status */
|
||||
u8 wdog_preset; /* watchdog preset */
|
||||
u8 volt[3]; /* 12, 5, battery current */
|
||||
u8 temp_act[3]; /* temperature */
|
||||
u8 temp_status[3]; /* status of sensor */
|
||||
u8 fan_act[3]; /* fans revolutions per second */
|
||||
u8 fan_status[3]; /* fan status */
|
||||
u8 pwm[2]; /* fan min value for rps */
|
||||
u8 fan_ripple[3]; /* divider for rps */
|
||||
};
|
||||
|
||||
/* Temperature */
|
||||
#define TEMP_FROM_REG(val) (((val) - 128) * 1000)
|
||||
|
||||
static ssize_t show_temp_input(struct fscpos_data *data, char *buf, int nr)
|
||||
{
|
||||
return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_act[nr - 1]));
|
||||
}
|
||||
|
||||
static ssize_t show_temp_status(struct fscpos_data *data, char *buf, int nr)
|
||||
{
|
||||
/* bits 2..7 reserved => mask with 0x03 */
|
||||
return sprintf(buf, "%u\n", data->temp_status[nr - 1] & 0x03);
|
||||
}
|
||||
|
||||
static ssize_t show_temp_reset(struct fscpos_data *data, char *buf, int nr)
|
||||
{
|
||||
return sprintf(buf, "1\n");
|
||||
}
|
||||
|
||||
static ssize_t set_temp_reset(struct i2c_client *client, struct fscpos_data
|
||||
*data, const char *buf, size_t count, int nr, int reg)
|
||||
{
|
||||
unsigned long v = simple_strtoul(buf, NULL, 10);
|
||||
if (v != 1) {
|
||||
dev_err(&client->dev, "temp_reset value %ld not supported. "
|
||||
"Use 1 to reset the alarm!\n", v);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
dev_info(&client->dev, "You used the temp_reset feature which has not "
|
||||
"been proplerly tested. Please report your "
|
||||
"experience to the module author.\n");
|
||||
|
||||
/* Supported value: 2 (clears the status) */
|
||||
fscpos_write_value(client, FSCPOS_REG_TEMP_STATE[nr - 1], 2);
|
||||
return count;
|
||||
}
|
||||
|
||||
/* Fans */
|
||||
#define RPM_FROM_REG(val) ((val) * 60)
|
||||
|
||||
static ssize_t show_fan_status(struct fscpos_data *data, char *buf, int nr)
|
||||
{
|
||||
/* bits 0..1, 3..7 reserved => mask with 0x04 */
|
||||
return sprintf(buf, "%u\n", data->fan_status[nr - 1] & 0x04);
|
||||
}
|
||||
|
||||
static ssize_t show_fan_input(struct fscpos_data *data, char *buf, int nr)
|
||||
{
|
||||
return sprintf(buf, "%u\n", RPM_FROM_REG(data->fan_act[nr - 1]));
|
||||
}
|
||||
|
||||
static ssize_t show_fan_ripple(struct fscpos_data *data, char *buf, int nr)
|
||||
{
|
||||
/* bits 2..7 reserved => mask with 0x03 */
|
||||
return sprintf(buf, "%u\n", data->fan_ripple[nr - 1] & 0x03);
|
||||
}
|
||||
|
||||
static ssize_t set_fan_ripple(struct i2c_client *client, struct fscpos_data
|
||||
*data, const char *buf, size_t count, int nr, int reg)
|
||||
{
|
||||
/* supported values: 2, 4, 8 */
|
||||
unsigned long v = simple_strtoul(buf, NULL, 10);
|
||||
|
||||
switch (v) {
|
||||
case 2: v = 1; break;
|
||||
case 4: v = 2; break;
|
||||
case 8: v = 3; break;
|
||||
default:
|
||||
dev_err(&client->dev, "fan_ripple value %ld not supported. "
|
||||
"Must be one of 2, 4 or 8!\n", v);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
mutex_lock(&data->update_lock);
|
||||
/* bits 2..7 reserved => mask with 0x03 */
|
||||
data->fan_ripple[nr - 1] &= ~0x03;
|
||||
data->fan_ripple[nr - 1] |= v;
|
||||
|
||||
fscpos_write_value(client, reg, data->fan_ripple[nr - 1]);
|
||||
mutex_unlock(&data->update_lock);
|
||||
return count;
|
||||
}
|
||||
|
||||
static ssize_t show_pwm(struct fscpos_data *data, char *buf, int nr)
|
||||
{
|
||||
return sprintf(buf, "%u\n", data->pwm[nr - 1]);
|
||||
}
|
||||
|
||||
static ssize_t set_pwm(struct i2c_client *client, struct fscpos_data *data,
|
||||
const char *buf, size_t count, int nr, int reg)
|
||||
{
|
||||
unsigned long v = simple_strtoul(buf, NULL, 10);
|
||||
|
||||
/* Range: 0..255 */
|
||||
if (v < 0) v = 0;
|
||||
if (v > 255) v = 255;
|
||||
|
||||
mutex_lock(&data->update_lock);
|
||||
data->pwm[nr - 1] = v;
|
||||
fscpos_write_value(client, reg, data->pwm[nr - 1]);
|
||||
mutex_unlock(&data->update_lock);
|
||||
return count;
|
||||
}
|
||||
|
||||
static void reset_fan_alarm(struct i2c_client *client, int nr)
|
||||
{
|
||||
fscpos_write_value(client, FSCPOS_REG_FAN_STATE[nr], 4);
|
||||
}
|
||||
|
||||
/* Volts */
|
||||
#define VOLT_FROM_REG(val, mult) ((val) * (mult) / 255)
|
||||
|
||||
static ssize_t show_volt_12(struct device *dev, struct device_attribute *attr, char *buf)
|
||||
{
|
||||
struct fscpos_data *data = fscpos_update_device(dev);
|
||||
return sprintf(buf, "%u\n", VOLT_FROM_REG(data->volt[0], 14200));
|
||||
}
|
||||
|
||||
static ssize_t show_volt_5(struct device *dev, struct device_attribute *attr, char *buf)
|
||||
{
|
||||
struct fscpos_data *data = fscpos_update_device(dev);
|
||||
return sprintf(buf, "%u\n", VOLT_FROM_REG(data->volt[1], 6600));
|
||||
}
|
||||
|
||||
static ssize_t show_volt_batt(struct device *dev, struct device_attribute *attr, char *buf)
|
||||
{
|
||||
struct fscpos_data *data = fscpos_update_device(dev);
|
||||
return sprintf(buf, "%u\n", VOLT_FROM_REG(data->volt[2], 3300));
|
||||
}
|
||||
|
||||
/* Watchdog */
|
||||
static ssize_t show_wdog_control(struct fscpos_data *data, char *buf)
|
||||
{
|
||||
/* bits 0..3 reserved, bit 6 write only => mask with 0xb0 */
|
||||
return sprintf(buf, "%u\n", data->wdog_control & 0xb0);
|
||||
}
|
||||
|
||||
static ssize_t set_wdog_control(struct i2c_client *client, struct fscpos_data
|
||||
*data, const char *buf, size_t count, int reg)
|
||||
{
|
||||
/* bits 0..3 reserved => mask with 0xf0 */
|
||||
unsigned long v = simple_strtoul(buf, NULL, 10) & 0xf0;
|
||||
|
||||
mutex_lock(&data->update_lock);
|
||||
data->wdog_control &= ~0xf0;
|
||||
data->wdog_control |= v;
|
||||
fscpos_write_value(client, reg, data->wdog_control);
|
||||
mutex_unlock(&data->update_lock);
|
||||
return count;
|
||||
}
|
||||
|
||||
static ssize_t show_wdog_state(struct fscpos_data *data, char *buf)
|
||||
{
|
||||
/* bits 0, 2..7 reserved => mask with 0x02 */
|
||||
return sprintf(buf, "%u\n", data->wdog_state & 0x02);
|
||||
}
|
||||
|
||||
static ssize_t set_wdog_state(struct i2c_client *client, struct fscpos_data
|
||||
*data, const char *buf, size_t count, int reg)
|
||||
{
|
||||
unsigned long v = simple_strtoul(buf, NULL, 10) & 0x02;
|
||||
|
||||
/* Valid values: 2 (clear) */
|
||||
if (v != 2) {
|
||||
dev_err(&client->dev, "wdog_state value %ld not supported. "
|
||||
"Must be 2 to clear the state!\n", v);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
mutex_lock(&data->update_lock);
|
||||
data->wdog_state &= ~v;
|
||||
fscpos_write_value(client, reg, v);
|
||||
mutex_unlock(&data->update_lock);
|
||||
return count;
|
||||
}
|
||||
|
||||
static ssize_t show_wdog_preset(struct fscpos_data *data, char *buf)
|
||||
{
|
||||
return sprintf(buf, "%u\n", data->wdog_preset);
|
||||
}
|
||||
|
||||
static ssize_t set_wdog_preset(struct i2c_client *client, struct fscpos_data
|
||||
*data, const char *buf, size_t count, int reg)
|
||||
{
|
||||
unsigned long v = simple_strtoul(buf, NULL, 10) & 0xff;
|
||||
|
||||
mutex_lock(&data->update_lock);
|
||||
data->wdog_preset = v;
|
||||
fscpos_write_value(client, reg, data->wdog_preset);
|
||||
mutex_unlock(&data->update_lock);
|
||||
return count;
|
||||
}
|
||||
|
||||
/* Event */
|
||||
static ssize_t show_event(struct device *dev, struct device_attribute *attr, char *buf)
|
||||
{
|
||||
/* bits 5..7 reserved => mask with 0x1f */
|
||||
struct fscpos_data *data = fscpos_update_device(dev);
|
||||
return sprintf(buf, "%u\n", data->global_event & 0x9b);
|
||||
}
|
||||
|
||||
/*
|
||||
* Sysfs stuff
|
||||
*/
|
||||
#define create_getter(kind, sub) \
|
||||
static ssize_t sysfs_show_##kind##sub(struct device *dev, struct device_attribute *attr, char *buf) \
|
||||
{ \
|
||||
struct fscpos_data *data = fscpos_update_device(dev); \
|
||||
return show_##kind##sub(data, buf); \
|
||||
}
|
||||
|
||||
#define create_getter_n(kind, offset, sub) \
|
||||
static ssize_t sysfs_show_##kind##offset##sub(struct device *dev, struct device_attribute *attr, char\
|
||||
*buf) \
|
||||
{ \
|
||||
struct fscpos_data *data = fscpos_update_device(dev); \
|
||||
return show_##kind##sub(data, buf, offset); \
|
||||
}
|
||||
|
||||
#define create_setter(kind, sub, reg) \
|
||||
static ssize_t sysfs_set_##kind##sub (struct device *dev, struct device_attribute *attr, const char \
|
||||
*buf, size_t count) \
|
||||
{ \
|
||||
struct i2c_client *client = to_i2c_client(dev); \
|
||||
struct fscpos_data *data = i2c_get_clientdata(client); \
|
||||
return set_##kind##sub(client, data, buf, count, reg); \
|
||||
}
|
||||
|
||||
#define create_setter_n(kind, offset, sub, reg) \
|
||||
static ssize_t sysfs_set_##kind##offset##sub (struct device *dev, struct device_attribute *attr, \
|
||||
const char *buf, size_t count) \
|
||||
{ \
|
||||
struct i2c_client *client = to_i2c_client(dev); \
|
||||
struct fscpos_data *data = i2c_get_clientdata(client); \
|
||||
return set_##kind##sub(client, data, buf, count, offset, reg);\
|
||||
}
|
||||
|
||||
#define create_sysfs_device_ro(kind, sub, offset) \
|
||||
static DEVICE_ATTR(kind##offset##sub, S_IRUGO, \
|
||||
sysfs_show_##kind##offset##sub, NULL);
|
||||
|
||||
#define create_sysfs_device_rw(kind, sub, offset) \
|
||||
static DEVICE_ATTR(kind##offset##sub, S_IRUGO | S_IWUSR, \
|
||||
sysfs_show_##kind##offset##sub, sysfs_set_##kind##offset##sub);
|
||||
|
||||
#define sysfs_ro_n(kind, sub, offset) \
|
||||
create_getter_n(kind, offset, sub); \
|
||||
create_sysfs_device_ro(kind, sub, offset);
|
||||
|
||||
#define sysfs_rw_n(kind, sub, offset, reg) \
|
||||
create_getter_n(kind, offset, sub); \
|
||||
create_setter_n(kind, offset, sub, reg); \
|
||||
create_sysfs_device_rw(kind, sub, offset);
|
||||
|
||||
#define sysfs_rw(kind, sub, reg) \
|
||||
create_getter(kind, sub); \
|
||||
create_setter(kind, sub, reg); \
|
||||
create_sysfs_device_rw(kind, sub,);
|
||||
|
||||
#define sysfs_fan_with_min(offset, reg_status, reg_ripple, reg_min) \
|
||||
sysfs_fan(offset, reg_status, reg_ripple); \
|
||||
sysfs_rw_n(pwm,, offset, reg_min);
|
||||
|
||||
#define sysfs_fan(offset, reg_status, reg_ripple) \
|
||||
sysfs_ro_n(fan, _input, offset); \
|
||||
sysfs_ro_n(fan, _status, offset); \
|
||||
sysfs_rw_n(fan, _ripple, offset, reg_ripple);
|
||||
|
||||
#define sysfs_temp(offset, reg_status) \
|
||||
sysfs_ro_n(temp, _input, offset); \
|
||||
sysfs_ro_n(temp, _status, offset); \
|
||||
sysfs_rw_n(temp, _reset, offset, reg_status);
|
||||
|
||||
#define sysfs_watchdog(reg_wdog_preset, reg_wdog_state, reg_wdog_control) \
|
||||
sysfs_rw(wdog, _control, reg_wdog_control); \
|
||||
sysfs_rw(wdog, _preset, reg_wdog_preset); \
|
||||
sysfs_rw(wdog, _state, reg_wdog_state);
|
||||
|
||||
sysfs_fan_with_min(1, FSCPOS_REG_FAN_STATE[0], FSCPOS_REG_FAN_RIPPLE[0],
|
||||
FSCPOS_REG_PWM[0]);
|
||||
sysfs_fan_with_min(2, FSCPOS_REG_FAN_STATE[1], FSCPOS_REG_FAN_RIPPLE[1],
|
||||
FSCPOS_REG_PWM[1]);
|
||||
sysfs_fan(3, FSCPOS_REG_FAN_STATE[2], FSCPOS_REG_FAN_RIPPLE[2]);
|
||||
|
||||
sysfs_temp(1, FSCPOS_REG_TEMP_STATE[0]);
|
||||
sysfs_temp(2, FSCPOS_REG_TEMP_STATE[1]);
|
||||
sysfs_temp(3, FSCPOS_REG_TEMP_STATE[2]);
|
||||
|
||||
sysfs_watchdog(FSCPOS_REG_WDOG_PRESET, FSCPOS_REG_WDOG_STATE,
|
||||
FSCPOS_REG_WDOG_CONTROL);
|
||||
|
||||
static DEVICE_ATTR(event, S_IRUGO, show_event, NULL);
|
||||
static DEVICE_ATTR(in0_input, S_IRUGO, show_volt_12, NULL);
|
||||
static DEVICE_ATTR(in1_input, S_IRUGO, show_volt_5, NULL);
|
||||
static DEVICE_ATTR(in2_input, S_IRUGO, show_volt_batt, NULL);
|
||||
|
||||
static struct attribute *fscpos_attributes[] = {
|
||||
&dev_attr_event.attr,
|
||||
&dev_attr_in0_input.attr,
|
||||
&dev_attr_in1_input.attr,
|
||||
&dev_attr_in2_input.attr,
|
||||
|
||||
&dev_attr_wdog_control.attr,
|
||||
&dev_attr_wdog_preset.attr,
|
||||
&dev_attr_wdog_state.attr,
|
||||
|
||||
&dev_attr_temp1_input.attr,
|
||||
&dev_attr_temp1_status.attr,
|
||||
&dev_attr_temp1_reset.attr,
|
||||
&dev_attr_temp2_input.attr,
|
||||
&dev_attr_temp2_status.attr,
|
||||
&dev_attr_temp2_reset.attr,
|
||||
&dev_attr_temp3_input.attr,
|
||||
&dev_attr_temp3_status.attr,
|
||||
&dev_attr_temp3_reset.attr,
|
||||
|
||||
&dev_attr_fan1_input.attr,
|
||||
&dev_attr_fan1_status.attr,
|
||||
&dev_attr_fan1_ripple.attr,
|
||||
&dev_attr_pwm1.attr,
|
||||
&dev_attr_fan2_input.attr,
|
||||
&dev_attr_fan2_status.attr,
|
||||
&dev_attr_fan2_ripple.attr,
|
||||
&dev_attr_pwm2.attr,
|
||||
&dev_attr_fan3_input.attr,
|
||||
&dev_attr_fan3_status.attr,
|
||||
&dev_attr_fan3_ripple.attr,
|
||||
NULL
|
||||
};
|
||||
|
||||
static const struct attribute_group fscpos_group = {
|
||||
.attrs = fscpos_attributes,
|
||||
};
|
||||
|
||||
/* Return 0 if detection is successful, -ENODEV otherwise */
|
||||
static int fscpos_detect(struct i2c_client *new_client, int kind,
|
||||
struct i2c_board_info *info)
|
||||
{
|
||||
struct i2c_adapter *adapter = new_client->adapter;
|
||||
|
||||
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
|
||||
return -ENODEV;
|
||||
|
||||
/* Do the remaining detection unless force or force_fscpos parameter */
|
||||
if (kind < 0) {
|
||||
if ((fscpos_read_value(new_client, FSCPOS_REG_IDENT_0)
|
||||
!= 0x50) /* 'P' */
|
||||
|| (fscpos_read_value(new_client, FSCPOS_REG_IDENT_1)
|
||||
!= 0x45) /* 'E' */
|
||||
|| (fscpos_read_value(new_client, FSCPOS_REG_IDENT_2)
|
||||
!= 0x47))/* 'G' */
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
strlcpy(info->type, "fscpos", I2C_NAME_SIZE);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int fscpos_probe(struct i2c_client *new_client,
|
||||
const struct i2c_device_id *id)
|
||||
{
|
||||
struct fscpos_data *data;
|
||||
int err;
|
||||
|
||||
data = kzalloc(sizeof(struct fscpos_data), GFP_KERNEL);
|
||||
if (!data) {
|
||||
err = -ENOMEM;
|
||||
goto exit;
|
||||
}
|
||||
|
||||
i2c_set_clientdata(new_client, data);
|
||||
data->valid = 0;
|
||||
mutex_init(&data->update_lock);
|
||||
|
||||
/* Inizialize the fscpos chip */
|
||||
fscpos_init_client(new_client);
|
||||
|
||||
/* Announce that the chip was found */
|
||||
dev_info(&new_client->dev, "Found fscpos chip, rev %u\n", data->revision);
|
||||
|
||||
/* Register sysfs hooks */
|
||||
if ((err = sysfs_create_group(&new_client->dev.kobj, &fscpos_group)))
|
||||
goto exit_free;
|
||||
|
||||
data->hwmon_dev = hwmon_device_register(&new_client->dev);
|
||||
if (IS_ERR(data->hwmon_dev)) {
|
||||
err = PTR_ERR(data->hwmon_dev);
|
||||
goto exit_remove_files;
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
exit_remove_files:
|
||||
sysfs_remove_group(&new_client->dev.kobj, &fscpos_group);
|
||||
exit_free:
|
||||
kfree(data);
|
||||
exit:
|
||||
return err;
|
||||
}
|
||||
|
||||
static int fscpos_remove(struct i2c_client *client)
|
||||
{
|
||||
struct fscpos_data *data = i2c_get_clientdata(client);
|
||||
|
||||
hwmon_device_unregister(data->hwmon_dev);
|
||||
sysfs_remove_group(&client->dev.kobj, &fscpos_group);
|
||||
|
||||
kfree(data);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int fscpos_read_value(struct i2c_client *client, u8 reg)
|
||||
{
|
||||
dev_dbg(&client->dev, "Read reg 0x%02x\n", reg);
|
||||
return i2c_smbus_read_byte_data(client, reg);
|
||||
}
|
||||
|
||||
static int fscpos_write_value(struct i2c_client *client, u8 reg, u8 value)
|
||||
{
|
||||
dev_dbg(&client->dev, "Write reg 0x%02x, val 0x%02x\n", reg, value);
|
||||
return i2c_smbus_write_byte_data(client, reg, value);
|
||||
}
|
||||
|
||||
/* Called when we have found a new FSCPOS chip */
|
||||
static void fscpos_init_client(struct i2c_client *client)
|
||||
{
|
||||
struct fscpos_data *data = i2c_get_clientdata(client);
|
||||
|
||||
/* read revision from chip */
|
||||
data->revision = fscpos_read_value(client, FSCPOS_REG_REVISION);
|
||||
}
|
||||
|
||||
static struct fscpos_data *fscpos_update_device(struct device *dev)
|
||||
{
|
||||
struct i2c_client *client = to_i2c_client(dev);
|
||||
struct fscpos_data *data = i2c_get_clientdata(client);
|
||||
|
||||
mutex_lock(&data->update_lock);
|
||||
|
||||
if (time_after(jiffies, data->last_updated + 2 * HZ) || !data->valid) {
|
||||
int i;
|
||||
|
||||
dev_dbg(&client->dev, "Starting fscpos update\n");
|
||||
|
||||
for (i = 0; i < 3; i++) {
|
||||
data->temp_act[i] = fscpos_read_value(client,
|
||||
FSCPOS_REG_TEMP_ACT[i]);
|
||||
data->temp_status[i] = fscpos_read_value(client,
|
||||
FSCPOS_REG_TEMP_STATE[i]);
|
||||
data->fan_act[i] = fscpos_read_value(client,
|
||||
FSCPOS_REG_FAN_ACT[i]);
|
||||
data->fan_status[i] = fscpos_read_value(client,
|
||||
FSCPOS_REG_FAN_STATE[i]);
|
||||
data->fan_ripple[i] = fscpos_read_value(client,
|
||||
FSCPOS_REG_FAN_RIPPLE[i]);
|
||||
if (i < 2) {
|
||||
/* fan2_min is not supported by the chip */
|
||||
data->pwm[i] = fscpos_read_value(client,
|
||||
FSCPOS_REG_PWM[i]);
|
||||
}
|
||||
/* reset fan status if speed is back to > 0 */
|
||||
if (data->fan_status[i] != 0 && data->fan_act[i] > 0) {
|
||||
reset_fan_alarm(client, i);
|
||||
}
|
||||
}
|
||||
|
||||
data->volt[0] = fscpos_read_value(client, FSCPOS_REG_VOLT_12);
|
||||
data->volt[1] = fscpos_read_value(client, FSCPOS_REG_VOLT_5);
|
||||
data->volt[2] = fscpos_read_value(client, FSCPOS_REG_VOLT_BATT);
|
||||
|
||||
data->wdog_preset = fscpos_read_value(client,
|
||||
FSCPOS_REG_WDOG_PRESET);
|
||||
data->wdog_state = fscpos_read_value(client,
|
||||
FSCPOS_REG_WDOG_STATE);
|
||||
data->wdog_control = fscpos_read_value(client,
|
||||
FSCPOS_REG_WDOG_CONTROL);
|
||||
|
||||
data->global_event = fscpos_read_value(client,
|
||||
FSCPOS_REG_EVENT_STATE);
|
||||
|
||||
data->last_updated = jiffies;
|
||||
data->valid = 1;
|
||||
}
|
||||
mutex_unlock(&data->update_lock);
|
||||
return data;
|
||||
}
|
||||
|
||||
static int __init sm_fscpos_init(void)
|
||||
{
|
||||
return i2c_add_driver(&fscpos_driver);
|
||||
}
|
||||
|
||||
static void __exit sm_fscpos_exit(void)
|
||||
{
|
||||
i2c_del_driver(&fscpos_driver);
|
||||
}
|
||||
|
||||
MODULE_AUTHOR("Stefan Ott <stefan@desire.ch> based on work from Hermann Jung "
|
||||
"<hej@odn.de>, Frodo Looijaard <frodol@dds.nl>"
|
||||
" and Philip Edelbrock <phil@netroedge.com>");
|
||||
MODULE_DESCRIPTION("fujitsu siemens poseidon chip driver");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
module_init(sm_fscpos_init);
|
||||
module_exit(sm_fscpos_exit);
|
||||
@ -259,7 +259,7 @@ static int ltc4215_probe(struct i2c_client *client,
|
||||
mutex_init(&data->update_lock);
|
||||
|
||||
/* Initialize the LTC4215 chip */
|
||||
/* TODO */
|
||||
i2c_smbus_write_byte_data(client, LTC4215_FAULT, 0x00);
|
||||
|
||||
/* Register sysfs hooks */
|
||||
ret = sysfs_create_group(&client->dev.kobj, <c4215_group);
|
||||
|
||||
@ -382,7 +382,8 @@ static int ltc4245_probe(struct i2c_client *client,
|
||||
mutex_init(&data->update_lock);
|
||||
|
||||
/* Initialize the LTC4245 chip */
|
||||
/* TODO */
|
||||
i2c_smbus_write_byte_data(client, LTC4245_FAULT1, 0x00);
|
||||
i2c_smbus_write_byte_data(client, LTC4245_FAULT2, 0x00);
|
||||
|
||||
/* Register sysfs hooks */
|
||||
ret = sysfs_create_group(&client->dev.kobj, <c4245_group);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user