mirror of
https://github.com/lm-sensors/lm-sensors
synced 2025-08-30 05:48:07 +00:00
(marius) removed pwmtest, pwmconfig takes over the pwm related stuff
git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@1858 7894878c-1315-0410-8ee3-d5d059ff63e0
This commit is contained in:
Marius Reiner
parent
aabdc3912a
commit
cb87834e01
@ -119,12 +119,9 @@ see useful_addresses.html.
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This script creates the /dev/i2c-* files. Please check the source before
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you run it, as you may need to set some variables first.
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* prog/pwm/pwmtest (shell script, not installed)
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This script tests the pwm (pulse width modulation) outputs of sensors
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for their effect on the fans.
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* prog/pwm/pwmconfig (shell script, not installed)
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Extended version of pwmtest, helps setup configfile for fancontrol
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Formerly pwmtest, tests the pwm (pulse width modulation) outputs of sensors
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for their effect on the fans and helps to setup the configfile for fancontrol.
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* prog/pwm/fancontrol (shell script, not installed)
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Controls fanspeeds responding to changes on temperature sensors.
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258
prog/pwm/pwmtest
258
prog/pwm/pwmtest
@ -1,258 +0,0 @@
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#
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# pwmtest
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# Tests the pwm outputs of sensors.
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#
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# Warning!!! This program will stop your fans, one at a time,
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# for approximately 3 seconds each!!!
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# This may cause your processor temperature to rise!!!
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# Verify that all fans are running at normal speed after this
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# program has exited!!!
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#
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# Copyright 2003 The lm_sensors project <sensors@stimpy.netroedge.com>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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#
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#
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echo 'This program will search your sensors for pulse width modulation (pwm)'
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echo 'controls, and test each one to see if it controls a fan on'
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echo 'your motherboard. Note that many motherboards do not have pwm'
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echo 'circuitry installed, even if your sensor chip supports pwm.'
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echo
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echo 'We will attempt to briefly stop each fan using the pwm controls.'
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echo 'The program will attempt to restore each fan to full speed'
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echo 'after testing. However, it is ** very important ** that you'
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echo 'physically verify that the fans have been to full speed'
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echo 'after the program has completed.'
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echo
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DELAY=3
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DIR=/proc/sys/dev/sensors
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if [ ! -d $DIR ]
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then
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echo $0: 'No sensors found! (modprobe sensor modules?)'
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exit 1
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fi
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cd $DIR
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DRIVERS=`echo *-*`
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if [ "*-*" = "$DRIVERS" ]
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then
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echo $0: 'No sensors found! (modprobe sensor modules?)'
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exit 1
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fi
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PWM=`echo */pwm*`
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if [ "*/pwm*" = "$PWM" ]
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then
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echo $0: 'There are no pwm-capable sensor modules installed'
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exit 1
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fi
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FAN=`echo */fan[1-9]`
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if [ "*/fan[1-9]" = "$FAN" ]
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then
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echo $0: 'There are no fan-capable sensor modules installed'
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exit 1
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fi
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echo 'Found the following PWM controls:'
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for i in $PWM
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do
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echo " $i"
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if [ -w $i ]
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then
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echo 255 0 > $i
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else
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NOTROOT=1
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fi
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done
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echo
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echo 'Found the following fan sensors:'
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for i in $FAN
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do
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S=`cat $i | cut -d' ' -f2`
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if [ "$S" = "0" -o "$S" = "-1" ]
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then
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echo " $i current speed: 0 ... skipping!"
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else
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echo " $i current speed: $S RPM"
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if [ "$GOODFAN" = "" ]
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then
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GOODFAN=$i
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SPEEDS=$S
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else
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GOODFAN="$GOODFAN $i"
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SPEEDS="$SPEEDS $S"
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fi
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fi
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done
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echo
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if [ "$GOODFAN" = "" ]
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then
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echo 'There are no working fan sensors, all readings are 0.'
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echo 'Make sure you have a 3-wire fan connected.'
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echo 'You may also need to increase the fan divisors.'
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echo 'See doc/fan-divisors for more information.'
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exit 1
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fi
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if [ "$NOTROOT" = "1" ]
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then
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echo 'As you are not root, we cannot write the PWM settings.'
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echo 'Please run as root to continue.'
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exit 1
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fi
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echo 'Warning!!! This program will stop your fans, one at a time,'
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echo "for approximately $DELAY seconds each!!!"
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echo 'This may cause your processor temperature to rise!!!'
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echo 'If you do not want to do this hit control-C now!!!'
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echo -n 'Hit return to continue: '
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read X
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echo
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PLOTTER=gnuplot
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STEP=15
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PDELAY=2
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function pwmdetail()
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{
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P=$1
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F=$2
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PLOT=
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type gnuplot > /dev/null 2>&1
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if [ $? -eq 0 ]
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then
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echo -n " Would you like to generate a graphical plot using $PLOTTER (y) ? "
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read X
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if [ "$X" = "y" -o "$X" = "Y" -o "$X" = "" ]
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then
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PLOT=y
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fi
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fi
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if [ "$PLOT" = "y" ]
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then
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TMP1=/usr/tmp/pwmtest$$.1
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TMP2=/usr/tmp/pwmtest$$.2
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echo "set xlabel \"PWM: $P\"" > $TMP1
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echo "set ylabel \"FAN: $F (RPM)\"" >> $TMP1
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echo 'set nokey' >> $TMP1
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echo 'set xrange [0:255]' >> $TMP1
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echo "plot \"$TMP2\" with lines" >> $TMP1
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echo 'pause -1 " Hit return to continue..."' >> $TMP1
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> $TMP2
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fi
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let pwm=255
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while [ $pwm -ge 0 ]
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do
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echo $pwm 1 > $P
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S=`cat $F | cut -d' ' -f2`
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echo " PWM $pwm FAN $S"
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if [ "$PLOT" = "y" ]
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then
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echo "$pwm $S" >> $TMP2
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fi
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if [ "$S" = "0" -o "S" = "-1" ]
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then
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echo 255 0 > $P
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echo " Fan Stopped at PWM = $pwm"
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if [ $pwm -eq 255 ]
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then
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echo " This fan appears to stop when the PWM is enabled;"
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echo " perhaps the fan input shares a pin with the PWM output"
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echo " on the sensor chip."
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rm -f $TMP1 $TMP2
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echo
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return 0
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fi
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break
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fi
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let pwm=$pwm-$STEP
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sleep $PDELAY
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if [ $? -ne 0 ]
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then
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echo 255 0 > $P
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echo '^C received, aborting...'
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rm -f $TMP1 $TMP2
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exit 1
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fi
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done
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echo 255 0 > $P
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if [ "$PLOT" = "y" ]
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then
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$PLOTTER $TMP1
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rm -f $TMP1 $TMP2
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fi
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echo
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}
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for i in $PWM
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do
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echo Testing pwm control $i ...
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echo 0 1 > $i
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sleep $DELAY
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if [ $? -ne 0 ]
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then
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echo 255 0 > $i
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echo '^C received, restoring PWM and aborting...'
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exit 1
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fi
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let count=1
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for j in $GOODFAN
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do
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OS=`echo $SPEEDS | cut -d' ' -f$count`
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S=`cat $j | cut -d' ' -f2`
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echo " $j ... speed was $OS now $S"
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echo 255 0 > $i
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let threshold=2*$OS/3
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if [ $S -lt $threshold ]
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then
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echo " It appears that fan $j"
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echo " is controlled by pwm $i"
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sleep $DELAY
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if [ $? -ne 0 ]
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then
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echo '^C received, aborting...'
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exit 1
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fi
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S=`cat $j | cut -d' ' -f2`
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if [ $S -lt $threshold ]
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then
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echo " Fan $j has not returned to speed, please investigate!"
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else
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echo -n " Would you like to generate a detailed correlation (y) ? "
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read X
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if [ "$X" = "y" -o "$X" = "Y" -o "$X" = "" ]
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then
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pwmdetail $i $j
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fi
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fi
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else
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echo " no correlation"
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fi
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let count=count+1
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done
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echo
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done
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echo 'Testing is complete.'
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echo 'Please verify that all fans have returned to their normal speed.'
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