TT S2-6400 - Aktualisiertes Script zum Bauen der Module unter openSUSE Tumbleweed mit Kernel 6.4.x

#!/bin/bash
# ======================================================================
#
#  script for building and installing the module for the TTS2-6400 DVB
#    card on openSUSE systems
#
#  rev. 0.01 - 20.10.2022 - Michael Hirmke (development@mike.franken.de)
#  - first public version
#
#  rev. 0.02 - 02.04.2023 - Michael Hirmke (development@mike.franken.de)
#  - improved handling of return values
#
#  rev. 0.03 - 27.08.2023 - Michael Hirmke (development@mike.franken.de)
#  - a few changes for kernel 6.4.x
#
#  rev. 0.04 - 28.08.2023 - Michael Hirmke (development@mike.franken.de)
#  - new DEBUG parameter
#  - kernel version taken from running kernel, if -v isn't provided
#
# ======================================================================

fUsage() {

  action="$1"
  case "$action" in
  5) $ECHO "$VERSION"
     exit 0
     ;;
  esac
  $ECHO
  case "$action" in
  4) $ECHO "wrong parameter!";;
  3) $ECHO "mutual exclusive parameters!";;
  2) $ECHO "missing parameter!";;
  1) $ECHO "unknown parameter!";;
  esac
  $ECHO "\tusage:\t$my_name [ -D <level>][ -h][ -v <kver>][ -V]"
  $ECHO
  $ECHO "\t\t-D <level>  debugging level;"
  $ECHO "\t\t            0 - no debugging (default);"
  $ECHO "\t\t            1 - \"set -x\" activated;"
  $ECHO "\t\t            2 - all important commands are prepended by"
  $ECHO "\t\t                \"$ECHO\";"
  $ECHO "\t\t            3 - 1 and 2 combined."
  $ECHO "\t\t-h          displays this help message."
  $ECHO "\t\t-v <kver>   kernel version like 5.14.21-150400;"
  $ECHO "\t\t              if empty, the version of the running kernel"
  $ECHO "\t\t              is used."
  $ECHO "\t\t-V          displays version number and date."
  $ECHO
  exit $action

} # // end fUsage( .. )

VERSION="version 0.04 / 28.08.2023"
LANG=C; export LANG
ECHO="/bin/echo -e"
ECHON="/bin/echo -n"

# just testing
DEBUG=0
TESTEXEC=""

while getopts D:hv:V OPTION # {
do
  case "$OPTION" in
  D) DEBUG=$OPTARG;;
  h) fUsage 0;;
  v) KERNELVER=$OPTARG;;
  V) fUsage 5;;
  *) fUsage 4;;
  esac
done # }
shift `expr "$OPTIND" - 1`

[ -z $KERNELVER ] && KERNELVER=$( uname -r | sed -e "s/\-default$//" )
KERNELMAINVER=$( $ECHO "$KERNELVER" | cut -d. -f 1,2 )

case "$DEBUG" in # {
0) ;;
1) set -x ;;
2) TESTEXEC=$ECHO ;;
3)
  TESTEXEC=$ECHO 
  set -x
  ;;
esac # }

ret=0

# 1. installing kernel source rpms

zypper se -i kernel-source || $TESTEXEC zypper in -y kernel-source
ret=$?
if [ $? -eq 0 ]
then
  zypper se -i kernel-devel || $TESTEXEC zypper in -y kernel-devel
  ret=$?
fi

# 2. downloading patch

if [ $? -eq 0 ]
then
  wget -O /tmp/saa716x-${KERNELMAINVER}.diff \
    https://github.com/s-moch/linux-saa716x/compare/v${KERNELMAINVER}...saa716x-${KERNELMAINVER}.diff
  ret=$?
fi

# 3. patching kernel

if [ $? -eq 0 ]
then
  cd "/usr/src/linux-${KERNELVER}" \
  && $TESTEXEC patch -p1 </tmp/saa716x-${KERNELMAINVER}.diff
  ret=$?
fi

# 4. modifying kernel configuration

if [ $ret -eq 0 ]
then
  $ECHO " ... "
  $ECHO " BT8XX GPIO abuser (GPIO_BT8XX) [N/m/y/?] (NEW) N "
  $ECHO " Support for SAA716x family from NXP/Philips (SAA716X_SUPPORT) [N/y/?] (NEW) y "
  $ECHO "     SAA7160/1/2 based Budget PCIe cards (DVB only) (DVB_SAA716X_BUDGET) [N/m/?] (NEW) N "
  $ECHO "     SAA7160/1/2 based Hybrid PCIe cards (DVB + Analog) (DVB_SAA716X_HYBRID) [N/m/?] (NEW) N "
  $ECHO "     SAA7160/1/2 based Full Fledged PCIe cards (DVB_SAA716X_FF) [N/m/?] (NEW) m "
  $ECHO " ...
  $ECHO " configuration written to .config

  $TESTEXEC make oldconfig
  ret=$?
fi

# 6. compiling modules

if [ $ret -eq 0 ]
then
  $ECHO " Warnings like "
  $ECHO " \"Skipping BTF generation for <...> due to unavailability of vmlinux\" "
  $ECHO " can be ignored." 

  # KBUILD_MODPOST_WARN=1 new for kernel 6.4.x
  # (otherwise the build will fail)
  $TESTEXEC make scripts prepare modules_prepare \
    && $TESTEXEC make -C . M=drivers/media/pci/saa716x KBUILD_MODPOST_WARN=1
  ret=$?
fi

# 7. installing modules

if [ $ret -eq 0 ]
then
  $ECHO " Modules are installed into"
  $ECHO "   /lib/modules/${KERNELVER}-default/extra/"
  $ECHO " starting with kernel 6.4.x into"
  $ECHO "   /lib/modules/${KERNELVER}-default/updates/"
  $ECHO "   (https://www.suse.com/support/kb/doc/?id=000018455)"

  $TESTEXEC make -C . M=drivers/media/pci/saa716x modules_install
  ret=$?
fi

# 8. generating module list
#    (should happen in topic 7, but often fails there)

$TESTEXEC /sbin/depmod -a

exit $ret

# ======================================================================
#
#   2022-2023 - Michael Hirmke (development@mike.franken.de)
#
# ======================================================================