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#!/bin/sh

# x-vdr (Installations-Skript fuer einen VDR mit Debian als Basis)
# von Marc Wernecke - www.zulu-entertainment.de
# 24.03.2009
# runvdr

VDRLANG="de_DE.iso88591"
VDRCHARSET="ISO-8859-9"
KILL="/usr/bin/killall -q -TERM"
KERNEL=`uname -r`
VDRCONFIG=/etc/default/vdr
LOGGER="logger -s ${0##*/} "

function VdrSettings() {
  # read vdr default configuration
  if [ -f "$VDRCONFIG" ]; then
    . $VDRCONFIG
  else
    $LOGGER "exit, because $VDRCONFIG does not exists"
    exit 1
  fi

  # read sysconfig generated by setup-plugin
  if [ "$setup" = "on" ] && [ -f "$VDRCONFDIR/plugins/setup/sysconfig" ]; then
    . "$VDRCONFDIR/plugins/setup/sysconfig"
  fi

  # test if vdr exists and is executable
  test -x "$VDRPRG" || exit 0

  # create tmp files
  $VDRPRG --help  | sed -e '/^$/d' -e 's/^. //' > /tmp/vdr-help.tmp
  $VDRPRG --version | sed -e 's/\(^[^ ]*\)\(.*$\)/\1_desc="\1\2"/' -e '/^streamdev/s/-/_/' -e 's/^\[.*//' | sort > /tmp/vdr-desc.cache

  # export vdr language
  export LANG=$VDRLANG
  export LC_ALL=$VDRLANG
  export VDR_CHARSET_OVERRIDE=$VDRCHARSET

  # export HOME
  if [ "$VDRUSER" = "root" ]; then
    export HOME="/root"
  else
    export HOME="$VDRCONFDIR"
  fi

  # java / projectx for burn and dvdconvert
  if [ "$burn" = "on" ] || [ "$dvdconvert" = "on" ]; then
    [ -z "$JAVA_HOME" ] && export JAVA_HOME="/usr/lib/jvm/java-6-sun/jre"
    [ -z "$PROJECTX_HOME" ] && export PROJECTX_HOME="/usr/bin/ProjectX"
  fi
  
  # set DISPLAY
  # - activate automatic login
  # - copy x-vdr/extra/xhost to ~/.kde/Autostart and set xhost executable
  if [ "$softdevice" = "on" ] || [ "$xineliboutput" = "on" ]; then
    [ -z "$DISPLAY" ] && export DISPLAY=:$XV_DISPLAY
  fi
  
  # load nvram
  if [ `which nvram-wakeup | wc -l` -gt 0 ] && [ `lsmod | grep -cw 'nvram'` -eq 0 ]; then
    modprobe -q nvram
  fi
  
  # load cdfs
  if [ `lsmod | grep -cw 'cdfs'` -eq 0 ]; then
    modprobe -q cdfs
  fi
  
  # load av7710ir
  if [ -e /proc/av7110_ir ] || [ -e /proc/budget_ci_ir ]; then
    for FILE in av7110_ir budget_ci_ir; do
      if [ -e "/proc/$FILE" ]; then
        chown $VDRUSER:$VDRGROUP /proc/$FILE
      fi
    done
    if [ `lsmod | grep -cw 'evdev'` -eq 0 ]; then modprobe -q evdev ; fi
  fi
  
  # load em8300
  if [ "$em8300" = "on" ]; then
#    EM8300="/lib/modules/$KERNEL/em8300"
#    if [ -f "$EM8300/adv717x.ko" ] && [ -f "$EM8300/bt865.ko" ] && [ -f "$EM8300/em8300.ko" ]; then
#      $VDRSCRIPTDIR/rmm
#      $VDRSCRIPTDIR/ldm
      [ "$dxr3" != "on" ] && em8300setup
#    fi
  fi
  
  # load parport
  if [ "$graphlcd_base" = "on" ]; then
    [ `lsmod | grep -cw 'parport'` -eq 0 ] && modprobe -q parport
    [ `lsmod | grep -cw 'parport_pc'` -eq 0 ] && modprobe -q parport_pc
    [ `lsmod | grep -cw 'ppdev'` -eq 0 ] && modprobe -q ppdev
#    chmod 0666 /dev/parport0
  fi
  
  # only for mplayer via xine
  # - copy x-vdr/extra/xhost to ~/.kde/Autostart and set xhost executable
  if [ "$VDRUSER" != "root" ] && [ "$xine" = "on" ] && [ "$mplayer" = "on" ]; then
    chmod 666 /dev/rtc
#    echo 1024 > /proc/sys/dev/rtc/max-user-freq
  fi
  
  # plugins
  PLUGINS=""
  ignore_cmd=""

  if [ "$USE_SYSCONFIG" = "on" ]; then  # use PLUGINLIST from sysconfig
    PLUGINS="$PLUGINLIST"

  else                                  # start creating a temporary pluginlist ...
    # plugin api version
    plugin_api="$(grep -m1 '^vdr_desc=' /tmp/vdr-desc.cache | sed -e 's/^vdr_desc=//' -e 's/[^)]*$//' -e 's/^[^\/]*//g' -e 's/\///' -e 's/\/*)//')"
    [ -n "$plugin_api" ] || plugin_api="$($VDRPRG --version | grep -m1 '^vdr '  | sed -e 's/[^)]*$//' -e 's/^[^\/]*//g' -e 's/\///' -e 's/\/*)//')"

    # put these plugins on top of the pluginlist
    if [ -n "$PLUGINS_ON_TOP" ]; then
      for p in $PLUGINS_ON_TOP ; do
        if [ -f "$VDRLIBDIR/libvdr-${p}.so.${plugin_api}" ]; then
          ignore_cmd="$ignore_cmd -I libvdr-${p}.so.${plugin_api}"
          plugin=$(echo $p | sed -e "s/-/_/g") # this is for streamdev-...
          if [ "${!plugin}" = "on" ]; then
            plugin_args="${plugin}_args"
            if [ -n "${!plugin_args}" ]; then
              PLUGINS="$PLUGINS -P'${p} ${!plugin_args}'"
            else
              PLUGINS="$PLUGINS -P'${p}'"
            fi
          fi
        fi
      done
    fi

    # read libdir and continue creating pluginlist
    files=$(ls -B $ignore_cmd "$VDRLIBDIR" | grep "^libvdr-" | grep ".so.${plugin_api}$" | sed -e "s/^libvdr-//g" -e "s/.so.${plugin_api}$//g")
    if [ -n "$files" ]; then
      for p in $files ; do
        plugin=$(echo $p | sed -e "s/-/_/g") # this is for streamdev-...
        if [ -z "${!plugin}" ] && [ -f "$VDRLIBDIR/libvdr-$(echo $plugin | sed -e "s/_/-/g").so.${plugin_api}" ]; then
          echo "" >> $VDRCONFIG
          echo "# $p" >> $VDRCONFIG
          echo "${plugin}=\"off"\" >> $VDRCONFIG
          eval ${plugin}="off"
          # plugin args
          nl=0; (( nl=$(grep -n "^$p " /tmp/vdr-help.tmp | cut -f 1 -d ":") +1 ))
          [ $nl -gt 1 ] && [ $(sed -n "${nl}p" /tmp/vdr-help.tmp | grep -c "^-") -gt 0 ] && echo "${plugin}_args=\"\"" >> $VDRCONFIG
        fi
        if [ "${!plugin}" = "on" ]; then
          plugin_args="${plugin}_args"
          if [ -n "${!plugin_args}" ]; then
            PLUGINS="$PLUGINS -P'${p} ${!plugin_args}'"
          else
            PLUGINS="$PLUGINS -P'${p}'"
          fi
        fi
      done
    fi

    # special plugin settings
    [ "$remote" = "on" ] && chmod 0666 $remote_event
  fi
  
  # scripts
  VDRRECCMDS=""
  [ -x "$VDRSCRIPTDIR/vdrreccmds" ]  && VDRRECCMDS="-r $VDRSCRIPTDIR/vdrreccmds"
  VDRSETTIME=""
  [ -x "$VDRSCRIPTDIR/vdrsettime" ]  && [ $(grep  -c "\-T CMD,   --timeset=CMD" /tmp/vdr-help.tmp) -gt 0 ] && VDRSETTIME="-T $VDRSCRIPTDIR/vdrsettime"
  VDRSHUTDOWN=""
  [ -x "$VDRSCRIPTDIR/vdrshutdown" ] && VDRSHUTDOWN="-s $VDRSCRIPTDIR/vdrshutdown"
  
  # keyboard tty (terminal for vdr)
  VDRKEYBTTY=""
  if [ "$KEYB_TTY" != "" ]; then
    VDRKEYBTTY="-t $KEYB_TTY"
    [ "$VDRUSER" != "root" ] && chmod 0666 $KEYB_TTY
  fi
  
  # cmd
  VDRCMD="$VDRPRG -w $WATCHDOG -v $VIDEODIR -c $VDRCONFDIR -E $VDRVARDIR/epg.data -L $VDRLIBDIR -u $VDRUSER \
          $VDRRECCMDS $VDRSETTIME $VDRSHUTDOWN $VDRKEYBTTY $PLUGINS $OPTIONS "
}

# modules
function get_modulenames() {
  KVERS=`uname -r | grep -e '2.6'`
  if [ -z "$KVERS" ]; then
    MODULES=`lsmod | grep 'dvb-core' | cut -d'[' -f2 | cut -d']' -f1`
  else
    MODULES=`lsmod | grep '^dvb_core' | awk '{print $4;}' | awk '{ gsub(/,/," ", $1); print }'`
  fi
}

get_modulenames

if [ -z "$MODULES" ]; then               # If no DVB-Modules were found, try to load
    modprobe -q dvb                      # the module with the name dvb, this could
    get_modulenames                      # be an alias for the dvb-ttpci-module or
fi                                       # another dvb-module

MODULES="$MODULES dvb-core"

if [ `echo $MODULES | grep -cw 'b2c2_flexcop'` -gt 0 ] && [ `echo $MODULES | grep -cw 'b2c2_flexcop_pci'` -eq 0 ]; then
   MODULES="b2c2_flexcop_pci $MODULES"
fi

# clear TTY
if [ "$KEYB_TTY" != "" ]; then
  clear > $KEYB_TTY
fi

# main script
while (true) do
  # load vdr settings
  VdrSettings
  # start X
  MSG="Starting Xserver for VDRUSER: '$VDRUSER'"
  [ "$XPLAYER" = "on" ] && echo "$MSG" && su "$VDRUSER" -c "startx &"
  # start vdr
  $LOGGER "Starting Video Disk Recorder at `date`"
  eval $VDRCMD >/dev/null 2>&1
  if test $? -eq 0; then
    $LOGGER "Video Disk Recorder stopped at `date`"
    [ "$XPLAYER" = "on" ] && $KILL Xorg
    exit 0
  fi
  # stop vdr
  $LOGGER "Stopping Video Disk Recorder at `date`"
  [ "$XPLAYER" = "on" ] && $KILL Xorg
  $KILL $VDRPRG
  wait `pidof $VDRPRG`
  # unload modules
  for MODULE in $MODULES; do
    rmmod $MODULE >/dev/null 2>&1
    wait `pidof rmmod`
  done
  # load modules
  for MODULE in $MODULES; do
    modprobe $MODULE >/dev/null 2>&1
  done
done

# clear tty
if [ "$KEYB_TTY" != "" ]; then
  clear > $KEYB_TTY
fi