[linux-dvb] startup-script

[Harald Lipphaus <Harald.Lipphaus@epost.de>]

I have build a little startup script, to help me loading the DVB-modules
at startup.
Maybe, someone can use it. It generates the /dev/ost-stuff on the fly if
required.

ciaou
    Harry



-- Attached file included as plaintext by Listar --
-- File: dvb

#! /bin/sh
#
# Loading and unloading of DVB modules - actualy Ver 0.8.1
# creates devices in /dev/ost if needed on the fly
#
# Author: Harald Lipphaus	Harald.Lipphaus@epost.de
#
# /sbin/init.d/dvb
#
#   and symbolic its link
#
# /sbin/rcdvb
#

# is this running un a SuSE distribution ?
if test -e /var/adm/SuSE* ; then
  SuSE="yes"
else
  SuSE="no"
fi

if test "$SuSE" == "yes" ; then
. /etc/rc.status
. /etc/rc.config
fi

#this are the lists of modules
# they are loaded in the listed order
# and unloaded in reverse order
napi_modules="dvbdev
	     demux
	     video
	     audio
	     sec
	     frontend
	     ca
	     ###"	# this is needed by my reverse function
	    		# perhaps you can find a better way...
	     
dvb_modules="i2c-core
	     videodev
	     saa7146_core
	     saa7146_v4l
	     VES1893
	     VES1820
	     dmxdev
	     dvb_demux
	     dvb
	     tuner
	     ###"

# this are the options for the modules
# curently only options for "dvb" and "saa7146_core are implemented
dvb_options="init_chan=1"
saa7146_core_options="mode=0"

#-------------------------------------------------------------------------------
#	You schouldn't need to change anything below these line
#-------------------------------------------------------------------------------



# Determine the base and follow a runlevel link name.
base=${0##*/}
link=${base#*[SK][0-9][0-9]}

if test "$SuSE" == "yes" ; then
# Force execution if not called by a runlevel directory.
test $link = $base && START_DVB=yes
test "$START_DVB" = yes || exit 0
fi

reverse ()
{
    local _line
    while read -d " \t" _line ; do
	reverse
	echo "$_line"
	break
    done
}


mkcdev ()
{
local	i
  if !( test -c "$1" ); then
    echo "creating $1[0..2]"
    for i in 0 1 2 3; do
      mknod -m 0666 "$1"$i c $2 $(($3+$i))
    done
    cd /dev/ost
    ln -s `basename "$1"0` `basename $1`
  fi
}

check_napi ()
{
  if !( test -d /dev/ost ); then
    echo "NAPI-device-files not found !"
    mkdir /dev/ost
    chmod 755 /dev/ost
  fi
  
  mkcdev /dev/ost/video   250  0
  mkcdev /dev/ost/sec     251  0
  mkcdev /dev/ost/sec     251  0
  mkcdev /dev/ost/audio   252  0
  mkcdev /dev/ost/qpskfe  253  0
  mkcdev /dev/ost/demux   254  0
  mkcdev /dev/ost/dvr     254 64
}


# Shell functions sourced from /etc/rc.status:
#      rc_check         check and set local and overall rc status
#      rc_status        check and set local and overall rc status
#      rc_status -v     ditto but be verbose in local rc status
#      rc_status -v -r  ditto and clear the local rc status
#      rc_failed        set local and overall rc status to failed
#      rc_reset         clear local rc status (overall remains)
#      rc_exit          exit appropriate to overall rc status

# First reset status of this service

if test "$SuSE" == "yes" ; then
rc_reset
fi

case "$1" in
    start)
	echo  "Starting service DVB"
	check_napi
	# At first the new napi devices
	for i in $napi_modules ;do
	  if test "$i" != "###" ; then
	    echo -ne "Loading $i         \r"
	    insmod $i	>/dev/null
	  fi
	done
	echo "NAPI interface loaded..."
	
	# and now the classsical DVB driver
	for i in $dvb_modules; do
	  if test "$i" != "###" ; then
	    echo -ne "Loading $i         \r"
	    case "$i" in
	      saa7146_core)	insmod $i $saa7146_core_options >/dev/null
	    			;;
	      dvb)		insmod $i $dvb_options >/dev/null
	    			;;
	      *)		insmod $i >/dev/null
	    			;;
	    esac
	  fi
	done
	echo "DVB-driver loaded..."
	
if test "$SuSE" == "yes" ; then
	# Remember status and be verbose
	rc_status -v
fi
	;;
    stop)
	echo -n "Shutting down service DVB"
	# first the classsical DVB driver
	
	for i in `echo $dvb_modules | reverse`; do
	    echo -ne "Unoading $i                  \r"
	    rmmod $i
	done

	# ... and now the napi modules
	for i in `echo $napi_modules | reverse`; do
	    echo -ne "Unoading $i                  \r"
	    rmmod $i
	done

	echo "DVB-driver unloaded..."
	if test "$SuSE" == "yes" ; then
	# Remember status and be verbose
	  rc_status -v
	fi
	;;
    restart)
	## If first returns OK call the second, if first or
	## second command fails, set echo return value.
	$0 stop  &&  $0 start

	# Remember status and be quiet
	if test "$SuSE" == "yes" ; then
	  rc_status
	fi
	;;
    reload)

	$0 stop  &&  $0 start

	# Remember status and be verbose
	rc_status -v
	;;
    status)
	echo -n "Checking for service DVB: "
	## Check status with checkproc(8), if process is running
	## checkproc will return with exit status 0.

	#checkproc /usr/sbin/foo && echo OK || echo No process
	;;
    *)
	echo "Usage: $0 {start|stop|status|restart|reload}"
	exit 1
	;;
esac
if test "$SuSE" == "yes" ; then
  rc_exit
fi


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