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lm-sensors/doc/chips/w83781d
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Jean Delvare 03f3e08d48 w83781d driver doesn't support ASB100 anymore. 
git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@2313 7894878c-1315-0410-8ee3-d5d059ff63e0
2004-02-23 20:25:27 +00:00

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Kernel driver `w83781d.o'
=========================
Status: W83781D support is complete and well-tested.
W83782D support is complete and well-tested.
W83783S support is complete but has not been well-tested.
W83791D support is BETA.
W83627HF support is complete but has not been well-tested.
W83697HF support is complete but has not been well-tested.
AS99127F support is BETA and has known problems due to lack of a
chip datasheet. SEE BELOW.
Supported chips:
* Winbond W83781D
Prefix 'w83781d'
Addresses scanned: I2C 0x20 - 0x2f (inclusive), ISA 0x290 (8 I/O ports)
Datasheet: Publicly available at the Winbond website (www.winbond.com.tw)
* Winbond W83782D
Prefix 'w83782d'
Addresses scanned: I2C 0x20 - 0x2f (inclusive), ISA 0x290 (8 I/O ports)
Datasheet: Publicly available at the Winbond website
* Winbond W83783S
Prefix 'w83783s'
Addresses scanned: I2C 0x2d
Datasheet: Publicly available at the Winbond website
* Winbond W83791D
Prefix 'w83791d'
Addresses scanned: I2C 0x2c - 0x2f (inclusive)
Datasheet: Publicly available at the Winbond website
* Winbond W83627HF
Prefix 'w83627hf'
Addresses scanned: I2C 0x20 - 0x2f (inclusive), ISA 0x290 (8 I/O ports)
Datasheet: Publicly available at the Winbond website
* Winbond W83697HF
Prefix 'w83697hf'
Addresses scanned: ISA 0x290 (8 I/O ports)
Datasheet: Publicly available at the Winbond website
* Asus AS99127F
Prefix 'as99127f'
Addresses scanned: I2C 0x28 - 0x2f (inclusive)
Datasheet: Unavailable from Asus
Authors: Frodo Looijaard <frodol@dds.nl>, Philip Edelbrock <phil@netroedge.com>,
and Mark Studebaker <mdsxyz123@yahoo.com>
Module Parameters
-----------------
* force: short array (min = 1, max = 48)
List of adapter,address pairs to boldly assume to be present
* force_w83781d: short array (min = 1, max = 48)
List of adapter,address pairs which are unquestionably assumed to contain
a `w83781d' chip
* force_w83782d:
Ditto
* force_w83783s:
Ditto
* force_w83791d:
Ditto
* force_w83627hf:
Ditto
* force_w83697hf:
Ditto
* force_as99127f:
Ditto
* force_subclients=bus,caddr,saddr,saddr
This is used to force the i2c addresses for subclients of
a certain chip. Typical usage is `force_subclients=0,0x2d,0x4a,0x4b'
to force the subclients of chip 0x2d on bus 0 to i2c addresses
0x4a and 0x4b.
This parameter is useful for certain Tyan boards.
* ignore: short array (min = 1, max = 48)
List of adapter,address pairs not to scan
* ignore_range: short array (min = 1, max = 48)
List of adapter,start-addr,end-addr triples not to scan
* probe: short array (min = 1, max = 48)
List of adapter,address pairs to scan additionally
* probe_range: short array (min = 1, max = 48)
List of adapter,start-addr,end-addr triples to scan additionally
* init=[0,1] (default 1)
Use 'init=0' to bypass initializing the chip.
Try this if your computer crashes when you load the module.
Description
-----------
This driver implements support for the Winbond W83781D, W83782D,
W8783S, and W83627HF chips, and the Asus AS99127F chips.
We will refer to them collectively as W8378* chips.
There is quite some difference between these chips, but they are similar
enough that it was sensible to put them together in one driver.
The W83627HF chip is assumed to be identical to the ISA W83782D.
The Asus chips are similar to an I2C-only W83782D.
Detection of these chips can sometimes be foiled because they can be in
an internal state that allows no clean access. If you know the address
of the chip, use a 'force' parameter; this will put them into a more
well-behaved state first.
The W8378* implements temperature sensors (three on the W83781D and W83782D,
two on the W83783S), three FAN rotation speed sensors, voltage sensors
(seven on the W83781D, nine on the W83782D and six on the W83783S), VID
lines, alarms with beep warnings, and some miscellaneous stuff.
Temperatures are measured in degrees Celcius. There is always one main
temperature sensor, and one (W83783S) or two (W83781D and W83782D) other
sensors. An alarm is triggered for the main sensor once when the
Overtemperature Shutdown limit is crossed; it is triggered again as soon as
it drops below the Hysteresis value. A more useful behaviour
can be found by setting the Hysteresis value to +127 degrees Celcius; in
this case, alarms are issued during all the time when the actual temperature
is above the Overtemperature Shutdown value. The driver sets the
hysteresis value for temp1 to 127 at initialization.
For the other temperature sensor(s), an
alarm is triggered when the temperature gets higher then the Overtemperature
Shutdown value; it stays on until the temperature falls below the Hysteresis
value. But on the W83781D, there is only one alarm that functions for both
other sensors! Temperatures are guaranteed within a range of -55 to +125
degrees. The main temperature sensors has a resolution of 1 degree; the other
sensor(s) of 0.5 degree.
FAN rotation speeds are reported in RPM (rotations per minute). An alarm is
triggered if the rotation speed has dropped below a programmable limit. FAN
readings can be divided by a programmable divider (1, 2, 4 or 8 for the
W83781D; 1, 2, 4, 8, 16, 32, 64 or 128 for the others) to give
the readings more range or accuracy. This is important because some FANs
report only one 'tick' each rotation, while others report two - making
all readings twice as high. Not all RPM values can accurately be represented,
so some rounding is done. With a divider of 2, the lowest representable
value is around 2600 RPM.
Voltage sensors (also known as IN sensors) report their values in volts.
An alarm is triggered if the voltage has crossed a programmable minimum
or maximum limit. Note that minimum in this case always means 'closest to
zero'; this is important for negative voltage measurements. All voltage
inputs can measure voltages between 0 and 4.08 volts, with a resolution
of 0.016 volt.
The VID lines encode the core voltage value: the voltage level your processor
should work with. This is hardcoded by the mainboard and/or processor itself.
It is a value in volts. When it is unconnected, you will often find the
value 3.50 V here.
The W83782D and W83783S temperature conversion machine understands about
several kinds of temperature probes. You can program the so-called
beta value in the sensor files. '1' is the PII/Celeron diode, '2' is the
TN3904 transistor, and 3435 the default thermistor value. Other values
are (not yet) supported. You can program your own values through the
rt interface, but this is not very useful, because these tables are
under NDA.
In addition to the alarms described above, there is a CHAS alarm on the
chips which triggers if your computer case is open.
When an alarm goes off, you can be warned by a beeping signal through
your computer speaker. It is possible to enable all beeping globally,
or only the beeping for some alarms.
If an alarm triggers, it will remain triggered until the hardware register
is read at least once. This means that the cause for the alarm may
already have disappeared! Note that in the current implementation, all
hardware registers are read whenever any data is read (unless it is less
than 1.5 seconds since the last update). This means that you can easily
miss once-only alarms.
The chips only update values each 1.5 seconds; reading them more often
will do no harm, but will return 'old' values.
W8378* PROBLEMS
-----------------
Known problems:
- Some chips are misidentified.
This is caused by the chip having the wrong WCHIPID register
value, so there is no fix. The workaround is to use the
force_CHIP parameter.
(modprobe w83781d force_CHIP=BUS,0x2d where CHIP is the chip name
and BUS is your i2c bus number -
cat /proc/bus/i2c to see a list of bus numbers)
AS99127F PROBLEMS
-----------------
The as99127f support was developed without the benefit of a datasheet.
In most cases it is treated as a w83781d.
This support will be BETA until a datasheet is released.
One user has reported problems with fans stopping
occasionally.
Note that the individual beep bits are inverted from the other chips.
That is, in the second entry in the 'beep' file, a '1' bit means
disable, not enable. This may be changed in the future.
Known problems:
- Problems with diode/thermistor settings (supported?)
- fan_div register may not really be fan_div.
- One user reports fans stopping under high server load.
- Some as99127f chips are misidentified as a w83781d or w83782d.
This is caused by the chip having the wrong WCHIPID register
value, so there is no fix. The workaround is to use the
force_as99127f parameter.
(modprobe w83781d force_as99127f=BUS,0x2d where BUS is your i2c bus number)
These will not be fixed unless we get a datasheet.
If you have problems, please lobby Asus to release a datasheet.
Unfortunately several others have without success.
Please do not send mail to us asking for better as99127f support.
We have done the best we can without a datasheet.
Please do not send mail to the author or the sensors group asking for
a datasheet or ideas on how to convince Asus. We can't help.
Chip Features
-------------
Chip `w83781d'
LABEL LABEL CLASS COMPUTE CLASS ACCESS MAGNITUDE
in0 NONE NONE R 2
in1 NONE NONE R 2
in2 NONE NONE R 2
in3 NONE NONE R 2
in4 NONE NONE R 2
in5 NONE NONE R 2
in6 NONE NONE R 2
in0_min in0 in0 RW 2
in1_min in1 in1 RW 2
in2_min in2 in2 RW 2
in3_min in3 in3 RW 2
in4_min in4 in4 RW 2
in5_min in5 in5 RW 2
in6_min in6 in6 RW 2
in0_max in0 in0 RW 2
in1_max in1 in1 RW 2
in2_max in2 in2 RW 2
in3_max in3 in3 RW 2
in4_max in4 in4 RW 2
in5_max in5 in5 RW 2
in6_max in6 in6 RW 2
fan1 NONE NONE R 0
fan2 NONE NONE R 0
fan3 NONE NONE R 0
fan1_min fan1 NONE RW 0
fan2_min fan2 NONE RW 0
fan3_min fan3 NONE RW 0
temp1 NONE NONE R 1
temp1_hyst temp1 temp1 RW 1
temp1_over temp1 temp1 RW 1
temp2 NONE NONE R 1
temp2_hyst temp2 temp2 RW 1
temp2_over temp2 temp2 RW 1
temp3 NONE NONE R 1
temp3_hyst temp3 temp3 RW 1
temp3_over temp3 temp3 RW 1
vid NONE NONE R 2
fan1_div fan1 NONE RW 0
fan2_div fan2 NONE RW 0
fan3_div fan3 NONE R 0
alarms NONE NONE R 0
beep_enable alarms NONE RW 0
beeps alarms alarms RW 0
LABEL FEATURE SYMBOL SYSCTL FILE:NR
in0 SENSORS_W83781D_IN0 in0:3
in1 SENSORS_W83781D_IN1 in1:3
in2 SENSORS_W83781D_IN2 in2:3
in3 SENSORS_W83781D_IN3 in3:3
in4 SENSORS_W83781D_IN4 in4:3
in5 SENSORS_W83781D_IN5 in5:3
in6 SENSORS_W83781D_IN6 in6:3
in0_min SENSORS_W83781D_IN0_MIN in0:1
in1_min SENSORS_W83781D_IN1_MIN in1:1
in2_min SENSORS_W83781D_IN2_MIN in2:1
in3_min SENSORS_W83781D_IN3_MIN in3:1
in4_min SENSORS_W83781D_IN4_MIN in4:1
in5_min SENSORS_W83781D_IN5_MIN in5:1
in6_min SENSORS_W83781D_IN6_MIN in6:1
in0_max SENSORS_W83781D_IN0_MAX in0:2
in1_max SENSORS_W83781D_IN1_MAX in1:2
in2_max SENSORS_W83781D_IN2_MAX in2:2
in3_max SENSORS_W83781D_IN3_MAX in3:2
in4_max SENSORS_W83781D_IN4_MAX in4:2
in5_max SENSORS_W83781D_IN5_MAX in5:2
in6_max SENSORS_W83781D_IN6_MAX in6:2
fan1 SENSORS_W83781D_FAN1 fan1:2
fan2 SENSORS_W83781D_FAN2 fan2:2
fan3 SENSORS_W83781D_FAN3 fan3:2
fan1_min SENSORS_W83781D_FAN1_MIN fan1:1
fan2_min SENSORS_W83781D_FAN2_MIN fan2:1
fan3_min SENSORS_W83781D_FAN3_MIN fan3:1
temp1 SENSORS_W83781D_TEMP1 temp1:3
temp1_hyst SENSORS_W83781D_TEMP1_HYST temp1:2
temp1_over SENSORS_W83781D_TEMP1_OVER temp1:1
temp2 SENSORS_W83781D_TEMP2 temp2:3
temp2_hyst SENSORS_W83781D_TEMP2_HYST temp2:2
temp2_over SENSORS_W83781D_TEMP2_OVER temp2:1
temp3 SENSORS_W83781D_TEMP3 temp3:3
temp3_hyst SENSORS_W83781D_TEMP3_HYST temp3:2
temp3_over SENSORS_W83781D_TEMP3_OVER temp3:1
vid SENSORS_W83781D_VID vid:1
fan1_div SENSORS_W83781D_FAN1_DIV fan_div:1
fan2_div SENSORS_W83781D_FAN2_DIV fan_div:2
fan3_div SENSORS_W83781D_FAN3_DIV fan_div:3
alarms SENSORS_W83781D_ALARMS alarms:1
beep_enable SENSORS_W83781D_BEEP_ENABLE beep:1
beeps SENSORS_W83781D_BEEPS beep:2
Chip `w83782d'
LABEL LABEL CLASS COMPUTE CLASS ACCESS MAGNITUDE
in0 NONE NONE R 2
in1 NONE NONE R 2
in2 NONE NONE R 2
in3 NONE NONE R 2
in4 NONE NONE R 2
in5 NONE NONE R 2
in6 NONE NONE R 2
in7 NONE NONE R 2
in8 NONE NONE R 2
in0_min in0 in0 RW 2
in1_min in1 in1 RW 2
in2_min in2 in2 RW 2
in3_min in3 in3 RW 2
in4_min in4 in4 RW 2
in5_min in5 in5 RW 2
in6_min in6 in6 RW 2
in7_min in7 in7 RW 2
in8_min in8 in8 RW 2
in0_max in0 in0 RW 2
in1_max in1 in1 RW 2
in2_max in2 in2 RW 2
in3_max in3 in3 RW 2
in4_max in4 in4 RW 2
in5_max in5 in5 RW 2
in6_max in6 in6 RW 2
in7_max in7 in7 RW 2
in8_max in8 in8 RW 2
fan1 NONE NONE R 0
fan2 NONE NONE R 0
fan3 NONE NONE R 0
fan1_min fan1 NONE RW 0
fan2_min fan2 NONE RW 0
fan3_min fan3 NONE RW 0
temp1 NONE NONE R 1
temp1_hyst temp1 temp1 RW 1
temp1_over temp1 temp1 RW 1
temp2 NONE NONE R 1
temp2_hyst temp2 temp2 RW 1
temp2_over temp2 temp2 RW 1
temp3 NONE NONE R 1
temp3_hyst temp3 temp3 RW 1
temp3_over temp3 temp3 RW 1
vid NONE NONE R 2
fan1_div fan1 NONE RW 0
fan2_div fan2 NONE RW 0
fan3_div fan3 NONE R 0
alarms NONE NONE R 0
beep_enable alarms NONE RW 0
beeps alarms alarms RW 0
sensor1 NONE NONE RW 0
sensor2 NONE NONE RW 0
sensor3 NONE NONE RW 0
LABEL FEATURE SYMBOL SYSCTL FILE:NR
in0 SENSORS_W83782D_IN0 in0:3
in1 SENSORS_W83782D_IN1 in1:3
in2 SENSORS_W83782D_IN2 in2:3
in3 SENSORS_W83782D_IN3 in3:3
in4 SENSORS_W83782D_IN4 in4:3
in5 SENSORS_W83782D_IN5 in5:3
in6 SENSORS_W83782D_IN6 in6:3
in7 SENSORS_W83782D_IN7 in7:3
in8 SENSORS_W83782D_IN8 in8:3
in0_min SENSORS_W83782D_IN0_MIN in0:1
in1_min SENSORS_W83782D_IN1_MIN in1:1
in2_min SENSORS_W83782D_IN2_MIN in2:1
in3_min SENSORS_W83782D_IN3_MIN in3:1
in4_min SENSORS_W83782D_IN4_MIN in4:1
in5_min SENSORS_W83782D_IN5_MIN in5:1
in6_min SENSORS_W83782D_IN6_MIN in6:1
in7_min SENSORS_W83782D_IN7_MIN in7:1
in8_min SENSORS_W83782D_IN8_MIN in8:1
in0_max SENSORS_W83782D_IN0_MAX in0:2
in1_max SENSORS_W83782D_IN1_MAX in1:2
in2_max SENSORS_W83782D_IN2_MAX in2:2
in3_max SENSORS_W83782D_IN3_MAX in3:2
in4_max SENSORS_W83782D_IN4_MAX in4:2
in5_max SENSORS_W83782D_IN5_MAX in5:2
in6_max SENSORS_W83782D_IN6_MAX in6:2
in7_max SENSORS_W83782D_IN7_MAX in7:2
in8_max SENSORS_W83782D_IN8_MAX in8:2
fan1 SENSORS_W83782D_FAN1 fan1:2
fan2 SENSORS_W83782D_FAN2 fan2:2
fan3 SENSORS_W83781D_FAN3 fan3:2
fan1_min SENSORS_W83782D_FAN1_MIN fan1:1
fan2_min SENSORS_W83782D_FAN2_MIN fan2:1
fan3_min SENSORS_W83781D_FAN3_MIN fan3:1
temp1 SENSORS_W83782D_TEMP1 temp1:3
temp1_hyst SENSORS_W83782D_TEMP1_HYST temp1:2
temp1_over SENSORS_W83782D_TEMP1_OVER temp1:1
temp2 SENSORS_W83782D_TEMP2 temp2:3
temp2_hyst SENSORS_W83782D_TEMP2_HYST temp2:2
temp2_over SENSORS_W83782D_TEMP2_OVER temp2:1
temp3 SENSORS_W83782D_TEMP3 temp3:3
temp3_hyst SENSORS_W83782D_TEMP3_HYST temp3:2
temp3_over SENSORS_W83782D_TEMP3_OVER temp3:1
vid SENSORS_W83782D_VID vid:1
fan1_div SENSORS_W83782D_FAN1_DIV fan_div:1
fan2_div SENSORS_W83782D_FAN2_DIV fan_div:2
fan3_div SENSORS_W83781D_FAN3_DIV fan_div:3
alarms SENSORS_W83782D_ALARMS alarms:1
beep_enable SENSORS_W83782D_BEEP_ENABLE beep:1
beeps SENSORS_W83782D_BEEPS beep:2
sensor1 SENSORS_W83782D_SENS1 sensor1:1
sensor2 SENSORS_W83782D_SENS2 sensor2:1
sensor3 SENSORS_W83782D_SENS3 sensor3:1
Chip `w83783s'
LABEL LABEL CLASS COMPUTE CLASS ACCESS MAGNITUDE
in0 NONE NONE R 2
in1 NONE NONE R 2
in2 NONE NONE R 2
in3 NONE NONE R 2
in4 NONE NONE R 2
in5 NONE NONE R 2
in6 NONE NONE R 2
in0_min in0 in0 RW 2
in1_min in1 in1 RW 2
in2_min in2 in2 RW 2
in3_min in3 in3 RW 2
in4_min in4 in4 RW 2
in5_min in5 in5 RW 2
in6_min in6 in6 RW 2
in0_max in0 in0 RW 2
in1_max in1 in1 RW 2
in2_max in2 in2 RW 2
in3_max in3 in3 RW 2
in4_max in4 in4 RW 2
in5_max in5 in5 RW 2
in6_max in6 in6 RW 2
fan1 NONE NONE R 0
fan2 NONE NONE R 0
fan3 NONE NONE R 0
fan1_min fan1 NONE RW 0
fan2_min fan2 NONE RW 0
fan3_min fan3 NONE RW 0
temp1 NONE NONE R 1
temp1_hyst temp1 temp1 RW 1
temp1_over temp1 temp1 RW 1
temp2 NONE NONE R 1
temp2_hyst temp2 temp2 RW 1
temp2_over temp2 temp2 RW 1
vid NONE NONE R 2
fan1_div fan1 NONE RW 0
fan2_div fan2 NONE RW 0
fan3_div fan3 NONE R 0
alarms NONE NONE R 0
beep_enable alarms NONE RW 0
beeps alarms alarms RW 0
sensor1 NONE NONE RW 0
sensor2 NONE NONE RW 0
LABEL FEATURE SYMBOL SYSCTL FILE:NR
in0 SENSORS_W83783S_IN0 in0:3
in1 SENSORS_W83783S_IN1 in1:3
in2 SENSORS_W83783S_IN2 in2:3
in3 SENSORS_W83783S_IN3 in3:3
in4 SENSORS_W83783S_IN4 in4:3
in5 SENSORS_W83783S_IN5 in5:3
in6 SENSORS_W83783S_IN6 in6:3
in0_min SENSORS_W83783S_IN0_MIN in0:1
in1_min SENSORS_W83783S_IN1_MIN in1:1
in2_min SENSORS_W83783S_IN2_MIN in2:1
in3_min SENSORS_W83783S_IN3_MIN in3:1
in4_min SENSORS_W83783S_IN4_MIN in4:1
in5_min SENSORS_W83783S_IN5_MIN in5:1
in6_min SENSORS_W83783S_IN6_MIN in6:1
in0_max SENSORS_W83783S_IN0_MAX in0:2
in1_max SENSORS_W83783S_IN1_MAX in1:2
in2_max SENSORS_W83783S_IN2_MAX in2:2
in3_max SENSORS_W83783S_IN3_MAX in3:2
in4_max SENSORS_W83783S_IN4_MAX in4:2
in5_max SENSORS_W83783S_IN5_MAX in5:2
in6_max SENSORS_W83783S_IN6_MAX in6:2
fan1 SENSORS_W83783S_FAN1 fan1:2
fan2 SENSORS_W83783S_FAN2 fan2:2
fan3 SENSORS_W83783S_FAN3 fan3:2
fan1_min SENSORS_W83783S_FAN1_MIN fan1:1
fan2_min SENSORS_W83783S_FAN2_MIN fan2:1
fan3_min SENSORS_W83783S_FAN3_MIN fan3:1
temp1 SENSORS_W83783S_TEMP1 temp1:3
temp1_hyst SENSORS_W83783S_TEMP1_HYST temp1:2
temp1_over SENSORS_W83783S_TEMP1_OVER temp1:1
temp2 SENSORS_W83783S_TEMP2 temp2:3
temp2_hyst SENSORS_W83783S_TEMP2_HYST temp2:2
temp2_over SENSORS_W83783S_TEMP2_OVER temp2:1
vid SENSORS_W83783S_VID vid:1
fan1_div SENSORS_W83783S_FAN1_DIV fan_div:1
fan2_div SENSORS_W83783S_FAN2_DIV fan_div:2
fan3_div SENSORS_W83783S_FAN3_DIV fan_div:3
alarms SENSORS_W83783S_ALARMS alarms:1
beep_enable SENSORS_W83783S_BEEP_ENABLE beep:1
beeps SENSORS_W83783S_BEEPS beep:2
sensor1 SENSORS_W83783S_SENS1 sensor1:1
sensor2 SENSORS_W83783S_SENS2 sensor2:1
Miscellaneous documentation
===========================
/PROC ENTRIES
-------------
Varies depending on chip type. Most are identical to the lm78 entries.
See the lm78 documentation for details.
Additional entries not in the lm78:
pwm[1-4]: (not on w83781d)
Controls the speed of the fans with PWM (Pulse Width Modulation)
Valid values:
0 - 255. 255 = max speed.
Second value is PWM enable 0/1.
sensor[1-3]: (not on w83781d)
Controls the sensor type. To change to a different
sensor type, for example, do 'echo 2 > sensor1'.
Valid values:
1: Pentium II / Celeron diode
2: 2N3904 Transistor in a diode configuration
3435: Thermistor with Beta = 3435. Beta is a measure
of sensitivity to temperature.
Thermistors with other Betas could in theory be supported
after correspondence with Winbond. See below.
rt[1-3]: (781d only)
32-byte tables controlling the conversion from
resistance to temperature for thermistors.
For the curious only. Writing to these entries will
probably render temperature sensing insane.
Only set at initialization; not updated every 1.5 seconds.
TO DO:
-----
782d programmable pins
NOTES:
-----
783s has no in1 so that in[2-6] are compatible with the 781d/782d.
783s pin is programmable for -5V or temp1; defaults to -5V,
no control in driver so temp1 doesn't work.
782d and 783s datasheets differ on which is pwm1 and which is pwm2.
We chose to follow 782d.
782d and 783s pin is programmable for fan3 input or pwm2 output;
defaults to fan3 input.
If pwm2 is enabled (with echo 255 1 > pwm2), then
fan3 will report 0.
782d has pwm1-2 for isa, pwm1-4 for i2c. (pwm3-4 share pins with
the isa pins)
781d allowable values for fan_div are 1,2,4,8.
782d/783s allowable values for fan_div are 1,2,4,8,16,32,64,128.
Data sheet updates:
------------------
- Mask off lower bit of all ID registers.
- PWM clock registers:
000: master / 512
001: master / 1024
010: master / 2048
011: master / 4096
100: master / 8192
Answers from Winbond tech support
---------------------------------
>
> 1) In the W83781D data sheet section 7.2 last paragraph, it talks about
> reprogramming the R-T table if the Beta of the thermistor is not
> 3435K. The R-T table is described briefly in section 8.20.
> What formulas do I use to program a new R-T table for a given Beta?
>
We are sorry that the calculation for R-T table value is
confidential. If you have another Beta value of thermistor, we can help
to calculate the R-T table for you. But you should give us real R-T
Table which can be gotten by thermistor vendor. Therefore we will calculate
them and obtain 32-byte data, and you can fill the 32-byte data to the
register in Bank0.CR51 of W83781D.
> 2) In the W83782D data sheet, it mentions that pins 38, 39, and 40 are
> programmable to be either thermistor or Pentium II diode inputs.
> How do I program them for diode inputs? I can't find any register
> to program these to be diode inputs.
--> You may program Bank0 CR[5Dh] and CR[59h] registers.
CR[5Dh] bit 1(VTIN1) bit 2(VTIN2) bit 3(VTIN3)
thermistor 0 0 0
diode 1 1 1
(error) CR[59h] bit 4(VTIN1) bit 2(VTIN2) bit 3(VTIN3)
(right) CR[59h] bit 4(VTIN1) bit 5(VTIN2) bit 6(VTIN3)
PII thermal diode 1 1 1
2N3904 diode 0 0 0
Author/Maintainer
-----------------
Original 781D support: Frodo and Phil (sensors@stimpy.netroedge.com)
782D/783S support added by: Mark D. Studebaker (mdsxyz123@yahoo.com)
Send requests to the sensors@stimpy.netroedge.com mailing list.
Asus Clones
-----------
We have no datasheets for the Asus clones (AS99127F and ASB100 Bach).
Here are some very useful information that were given to us by Alex Van
Kaam about how to detect these chips, and how to read their values. He
also gives advice for another Asus chipset, the Mozart-2 (which we
don't support yet). Thanks Alex!
I reworded some parts and added personal comments.
# Detection:
AS99127F rev.1, AS99127F rev.2 and ASB100:
- I2C address range: 0x29 - 0x2F
- If register 0x58 holds 0x31 then we have an Asus (either ASB100 or
AS99127F)
- Which one depends on register 0x4F (manufacturer ID):
0x06 or 0x94: ASB100
0x12 or 0xC3: AS99127F rev.1
0x5C or 0xA3: AS99127F rev.2
Note that 0x5CA3 is Winbond's ID (WEC), which let us think Asus get their
AS99127F rev.2 direct from Winbond. The other codes mean ATT and DVC,
respectively. ATT could stand for Asustek something (although it would be
very badly chosen IMHO), I don't know what DVC could stand for. Maybe
these codes simply aren't meant to be decoded that way.
Mozart-2:
- I2C address: 0x77
- If register 0x58 holds 0x56 or 0x10 then we have a Mozart-2
- Of the mozart there are 3 types:
0x58=0x56, 0x4E=0x94, 0x4F=0x36: Asus ASM58 Mozart-2
0x58=0x56, 0x4E=0x94, 0x4F=0x06: Asus AS2K129R Mozart-2
0x58=0x10, 0x4E=0x5C, 0x4F=0xA3: Asus ??? Mozart-2
You can handle all 3 the exact same way :)
# Temperature sensors:
ASB100:
- sensor 1: register 0x27
- sensor 2 & 3 are the 2 LM75's on the SMBus
- sensor 4: register 0x17
Remark: I noticed that on Intel boards sensor 2 is used for the CPU
and 4 is ignored/stuck, on AMD boards sensor 4 is the CPU and sensor 2 is
either ignored or a socket temperature.
AS99127F (rev.1 and 2 alike):
- sensor 1: register 0x27
- sensor 2 & 3 are the 2 LM75's on the SMBus
Remark: Register 0x5b is suspected to be temperature type selector. Bit 1
would control temp1, bit 3 temp2 and bit 5 temp3.
Mozart-2:
- sensor 1: register 0x27
- sensor 2: register 0x13
# Fan sensors:
ASB100, AS99127F (rev.1 and 2 alike):
- 3 fans, identical to the W83781D
Mozart-2:
- 2 fans only, 1350000/rpm/div
- fan 1: register 0x28, divisor on register 0xA1 (bits 4-5)
- fan 2: register 0x29, divisor on register 0xA1 (bits 6-7)
# Voltages:
This is where there is a diffrence between AS99127F rev.1 and 2.
Remark: The difference is similar to the difference between
W83781D and W83782D.
ASB100:
in0=r(0x20)*0.016
in1=r(0x21)*0.016
in2=r(0x22)*0.016
in3=r(0x23)*0.016*1.68
in4=r(0x24)*0.016*3.8
in5=r(0x25)*(-0.016)*3.97
in6=r(0x26)*(-0.016)*1.666
AS99127F rev.1:
in0=r(0x20)*0.016
in1=r(0x21)*0.016
in2=r(0x22)*0.016
in3=r(0x23)*0.016*1.68
in4=r(0x24)*0.016*3.8
in5=r(0x25)*(-0.016)*3.97
in6=r(0x26)*(-0.016)*1.503
AS99127F rev.2:
in0=r(0x20)*0.016
in1=r(0x21)*0.016
in2=r(0x22)*0.016
in3=r(0x23)*0.016*1.68
in4=r(0x24)*0.016*3.8
in5=(r(0x25)*0.016-3.6)*5.14+3.6
in6=(r(0x26)*0.016-3.6)*3.14+3.6
Mozart-2:
in0=r(0x20)*0.016
in1=255
in2=r(0x22)*0.016
in3=r(0x23)*0.016*1.68
in4=r(0x24)*0.016*4
in5=255
in6=255
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