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Text File  |  2008-10-24  |  3.9 KB  |  139 lines
  1. #! /bin/sh
  2. # 
  3. # Laptop mode tools module: power saving for IPW3945, IPW2200 and IPW2100 using
  4. #                           the Intel ipw drivers.
  5. #
  6. #
  7. # This script relies upon the name of the driver.
  8. #
  9. # Original source: http://ubuntuforums.org/showthread.php?t=419772
  10.  
  11. if [ x$CONTROL_IPW_POWER = x1 ] ; then
  12.  
  13.     # Provide defaults for config file settings
  14.     [ "$IPW3945_AC_POWER" ]   || IPW3945_AC_POWER=6
  15.     [ "$IPW3945_BATT_POWER" ] || IPW3945_BATT_POWER=7
  16.     [ "$IPW2100_AC_POWER" ]   || IPW3945_AC_POWER=0
  17.     [ "$IPW2100_BATT_POWER" ] || IPW3945_BATT_POWER=5
  18.  
  19.     I3945_DRIVERNAME=ipw3945
  20.     I2200_DRIVERNAME=ipw2200
  21.     I2100_DRIVERNAME=ipw2100
  22.  
  23.     # find executables
  24.     if [ -x /sbin/iwpriv ] ; then
  25.         IWPRIV=/sbin/iwpriv
  26.     elif [ -x /usr/sbin/iwpriv ] ; then
  27.         IWPRIV=/usr/sbin/iwpriv
  28.     else
  29.         $LM_VERBOSE && echo "iwpriv is not installed" >> $OUTPUT
  30.     fi
  31.     if [ -x /sbin/iwconfig ] ; then
  32.         IWCONFIG=/sbin/iwconfig
  33.     elif [ -x /usr/sbin/iwconfig ] ; then
  34.         IWCONFIG=/usr/sbin/iwconfig
  35.     else
  36.         $LM_VERBOSE && echo "iwconfig is not installed" >> $OUTPUT
  37.     fi
  38.  
  39.     SET_I3945_AC_PARMS="set_power $IPW3945_AC_POWER"
  40.     SET_I3945_BAT_PARMS="set_power $IPW3945_BATT_POWER"
  41.  
  42.     SET_I2200_AC_PARMS="power off"
  43.     SET_I2200_BAT_PARMS="power on"
  44.  
  45.     # Note the fact that we're setting "power on" on both AC and battery.
  46.     # This is due to the fact that the second statement will have no effect
  47.     # if we turn power management off completely, and some laptops will
  48.     # reportedly get very hot if you turn off power management on the
  49.     # IPW2100.
  50.     SET_I2100_AC_PARMS_1="power on"
  51.     SET_I2100_BAT_PARMS_1="power on"
  52.     SET_I2100_AC_PARMS_2="set_power $IPW2100_AC_POWER"
  53.     SET_I2100_BAT_PARMS_2="set_power $IPW2100_BATT_POWER"
  54.  
  55.  
  56.     #
  57.     # Find all the wireless devices using the supplied driver names.
  58.     # Place the interface names on the list WIFI_IFNAMES.
  59.     #
  60.     findWifiIfsByDriver() {
  61.         local DEVICE;
  62.         local LINK_TARGET;
  63.         WIFI_IFNAMES=""
  64.  
  65.         for DEVICE in /sys/class/net/*; do
  66.             if [ -d $DEVICE/wireless -a -h $DEVICE/device/driver ]; then
  67.                 # See if the driver for $DEVICE matches the supplied one by checking the link to
  68.                 # the driver.
  69.                 LINK_TARGET=`readlink $DEVICE/device/driver`
  70.                 LINK_TARGET=${LINK_TARGET##*/}
  71.  
  72.                 if [ "$LINK_TARGET" = "$1" ]; then
  73.  
  74.                     # add the interface name to the list
  75.                         WIFI_IFNAMES="$WIFI_IFNAMES ${DEVICE##*/}"
  76.                 fi
  77.             fi
  78.         done
  79.     }
  80.  
  81.  
  82.     #
  83.     # Set all the adaptors using the supplied driver into the supplied
  84.     # power saving mode
  85.     #
  86.     # $1 - driver name
  87.     # $2 - power command
  88.     # $3 - power command arguments
  89.     #
  90.     setWifiPwrSave () {
  91.         local DEVICE;
  92.         findWifiIfsByDriver $1;
  93.  
  94.         for DEVICE in $WIFI_IFNAMES; do
  95.             $LM_VERBOSE && echo "Wireless power saving: $2 $DEVICE $3" >> $OUTPUT
  96.             $2 $DEVICE $3
  97.         done
  98.     }
  99.  
  100.     intel3945_BatPwrSave () {
  101.         setWifiPwrSave "$I3945_DRIVERNAME" "$IWPRIV" "$SET_I3945_BAT_PARMS"
  102.     }
  103.  
  104.     intel3945_AcPwrSave () {
  105.         setWifiPwrSave "$I3945_DRIVERNAME" "$IWPRIV" "$SET_I3945_AC_PARMS"
  106.     }
  107.  
  108.     intel2200_BatPwrSave () {
  109.         setWifiPwrSave "$I2200_DRIVERNAME" "$IWCONFIG" "$SET_I2200_BAT_PARMS"
  110.     }
  111.  
  112.     intel2200_AcPwrSave () {
  113.         setWifiPwrSave "$I2200_DRIVERNAME" "$IWCONFIG" "$SET_I2200_AC_PARMS"
  114.     }
  115.  
  116.     intel2100_BatPwrSave () {
  117.         setWifiPwrSave "$I2100_DRIVERNAME" "$IWCONFIG" "$SET_I2100_BAT_PARMS_1"
  118.         setWifiPwrSave "$I2100_DRIVERNAME" "$IWPRIV" "$SET_I2100_BAT_PARMS_2"
  119.     }
  120.  
  121.     intel2100_AcPwrSave () {
  122.         setWifiPwrSave "$I2100_DRIVERNAME" "$IWCONFIG" "$SET_I2100_AC_PARMS_1"
  123.         setWifiPwrSave "$I2100_DRIVERNAME" "$IWPRIV" "$SET_I2100_BAT_PARMS_2"
  124.     }
  125.  
  126.  
  127.     if [ $ON_AC -eq 1 ] ; then
  128.         [ -d /sys/module/$I3945_DRIVERNAME ] && intel3945_AcPwrSave
  129.         [ -d /sys/module/$I2200_DRIVERNAME ] && intel2200_AcPwrSave
  130.         [ -d /sys/module/$I2100_DRIVERNAME ] && intel2100_AcPwrSave
  131.     else
  132.         [ -d /sys/module/$I3945_DRIVERNAME ] && intel3945_BatPwrSave
  133.         [ -d /sys/module/$I2200_DRIVERNAME ] && intel2200_BatPwrSave
  134.         [ -d /sys/module/$I2100_DRIVERNAME ] && intel2100_BatPwrSave
  135.     fi
  136. else
  137.     $LM_VERBOSE && echo "Intel IPW Wireless power setting is disabled." >> $OUTPUT
  138. fi
  139.