Subversion Repositories oBacklight

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2 soulskater 1 
#!/bin/bash
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#####################################################################
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# Simple script to catch the changes to backlight events on sony    #
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# in combination with nvidia_bl.                                    #
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#                                                                   #
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# Tested with a Sony Vaio VPCCW1S1E Laptop.                         #
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#                                                                   #
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# This has been tested on openSUSE 11.2 & 11.3 but should           #
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# work on any distributions.                                        #
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#                                                                   #
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# Released under the BSDL Licens                                    #
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#                                                                   #
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# Developer: oSource Development                                    #
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# DevTeam: Marcus Uddenhed                                          #
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# Version: 0.3.2                                                    #
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#                                                                   #
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# Web: http://dev.osource.se/software/obacklight/                   #
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# Rss: http://dev.osource.se/category/obacklight/feed/              #
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#                                                                   #
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# Last Updated:	2010-06-24 13:21                                    #
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#                                                                   #
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#####################################################################
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### BEGIN INIT INFO
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# Provides:          oBacklight
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# Required-Start:    $acpid
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# Default-Start:     5
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# Default-Stop:      0 1 2 3 6
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# Short-Description: Provides a backlight event handler for nvidia_bl
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# Description:       Provides a backlight event handler for nvidia_bl.
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#	Captures all backlight events from ACPI Events.
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### END INIT INFO
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init() {
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# Default parameters
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BBL="2"			# Default brightness level when on battery(0-7).
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SCB="sony"		# Set which system ACPI is used.
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			# run 'sudo ls /sys/class/backlight' to determine your type.
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			# Available options: sony
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# Set correct value to /sys/class/backlight/nvidia_backlight/brightness
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GVAR=$(cat /sys/class/backlight/nvidia_backlight/brightness)
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if [ "$GVAR" > "7" ]
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 then
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  echo "7" > /sys/class/backlight/nvidia_backlight/brightness
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fi
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# Check if oBacklight.def exists
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if [ ! -e "/root/oBacklight.def" ]
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 then
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  echo "7" > /root/oBacklight.def
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fi
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}
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start() {
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/etc/init.d/oBacklight run &
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}
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stop() {
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echo $(cat /sys/class/backlight/nvidia_backlight/brightness) > /root/oBacklight.def
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killall -r oBacklight
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}
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run() {
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GVAR=$(cat /root/oBacklight.def)
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echo $GVAR > /sys/class/backlight/nvidia_backlight/brightness
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if [ "$SCB" = "sony" ]
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 then
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  while [ exit != 130 ]
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  do
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  GVAR=$(cat /sys/class/backlight/nvidia_backlight/brightness)
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  CMD=$(acpi_listen -c 1 | egrep -o " [0-9].+" | egrep -o "[0-9].+")
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  # Brightness down acpi event
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  if [ "$CMD" == "00000001 00000010" ]
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   then
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    if [ "$GVAR" != "0" ]
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     then
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      SVAR=$(($GVAR - 1))
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      echo $SVAR > /sys/class/backlight/nvidia_backlight/brightness
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      echo $SVAR > /root/oBacklight.def
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    fi
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  fi
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  # Brightness up acpi event
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  if [ "$CMD" == "00000001 00000011" ]
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   then
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    if [ "$GVAR" != "7" ]
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     then
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      SVAR=$(($GVAR + 1))
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      echo $SVAR > /sys/class/backlight/nvidia_backlight/brightness
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      echo $SVAR > /root/oBacklight.def
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    fi
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  fi
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  # AC to battery change
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  if [ "$CMD" == "00000081 00000000" ]
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   then
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    if [ "$GVAR" > "$BBL" ]
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     then
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      echo $BBL > /sys/class/backlight/nvidia_backlight/brightness
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      echo $BBL > /root/oBacklight.def
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    fi
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  fi
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  done
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fi
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}
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case $1 in
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start)
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start
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;;
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stop)
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stop
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;;
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run)
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init
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run
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;;
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*)
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echo "start|stop|run"
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;;
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esac