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#!/bin/bash

# Slackware build script for elo-mt-usb

# Copyright 2018 Jan F. Chadima <jfch@jagda.eu>
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

cd $(dirname $0) ; CWD=$(pwd)

PRGNAM=elo-mt-usb
VERSION=${VERSION:-2.5.0}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

KERN=${KERN:-"$(uname -r)"}
PKGVER="$(printf %s "${VERSION}_${KERN}" | tr - _)"

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i586 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

# If the variable PRINT_PACKAGE_NAME is set, then this script will report what
# the name of the created package would be, and then exit. This information
# could be useful to other scripts.
if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
  exit 0
fi

TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf elo-mt-usb
case "$ARCH" in
  i?86)
    tar xvf $CWD/SW602616_Elo_Linux_MT_USB_Driver_v${VERSION}_i686.tgz
    ;;
  x86_64)
    tar xvf $CWD/SW602617_Elo_Linux_MT_USB_Driver_v${VERSION}_x86_64.tgz
    ;;
#  arm*)
#    tar xvf $CWD/SW602618_Elo_Linux_MT_USB_Driver_v${VERSION}_armv7l.tgz
#    ;;
  *)
    echo "Unsupported architecture" >&2
    exit 1
esac
cd bin-mt-usb
chown -R root:root .
find -L . \
 \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
  -o -perm 511 \) -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;

cd elo_mt_input_mod_src

  # Add source of the module
  mkdir -p $PKG/usr/src/elo-mt-usb
  install -m 644 Makefile $PKG/usr/src/elo-mt-usb
  install -m 644 elo_mt_input.c $PKG/usr/src/elo-mt-usb

  # Make module and install it
  make CFLAGS="$SLKCFLAGS" KDIR=/lib/modules/$KERN/build
  mkdir -p $PKG/lib/modules/$KERN/elo-mt-usb
  install -m 644 elo_mt_input_mod.ko $PKG/lib/modules/$KERN/elo-mt-usb/

cd -

# Install udev rules
mkdir -p $PKG/lib/udev/rules.d
install -m 644 99-elotouch.rules $PKG/lib/udev/rules.d/

# Prepare "directory" for drivers and eloconfig
mkdir -p $PKG/etc/opt
mkdir -p $PKG/usr/lib$LIBDIRSUFFIX/elo-mt-usb
ln -s ../../usr/lib$LIBDIRSUFFIX/elo-mt-usb $PKG/etc/opt

mkdir -p $PKG/etc/elo
touch $PKG/etc/elo/eloconfig.new
ln -s ../../etc/elo $PKG/usr/lib$LIBDIRSUFFIX/elo-mt-usb/

# Patch cpl program
hexdump -ve '1/1 "%.2X"' cpl | sed "s/6C6962586D2E736F2E33/6C6962586D2E736F2E34/g" | xxd -r -p > cpl.patched

# Install content to a separate directory
install -s -m 755 cpl.patched $PKG/usr/lib$LIBDIRSUFFIX/elo-mt-usb/cpl
install -s -m 755 cplcmd $PKG/usr/lib$LIBDIRSUFFIX/elo-mt-usb/
install -s -m 755 elomtusbd $PKG/usr/lib$LIBDIRSUFFIX/elo-mt-usb/
install -s -m 755 elova $PKG/usr/lib$LIBDIRSUFFIX/elo-mt-usb/

# Install rc.script
mkdir -p $PKG/etc/rc.d
install -m 755 $CWD/rc.elo-mt-usb.new $PKG/etc/rc.d

# Create /usr/bin programs
mkdir -p $PKG/usr/bin

cat > $PKG/usr/bin/cpl << EOF
#!/bin/sh

exec /etc/opt/elo-mt-usb/cpl
EOF
chmod +x $PKG/usr/bin/cpl
ln -s cpl $PKG/usr/bin/touchscreen_setup
ln -s cpl $PKG/usr/bin/touchscreen_setup.elo-mt-usb

cat > $PKG/usr/bin/cplcmd << EOF
#!/bin/sh

exec /etc/opt/elo-mt-usb/cplcmd
EOF
chmod +x $PKG/usr/bin/cplcmd

cat > $PKG/usr/bin/elova << EOF
#!/bin/sh

exec /etc/opt/elo-mt-usb/elova
EOF
chmod +x $PKG/usr/bin/elova
ln -s elova $PKG/usr/bin/touchscreen_calibrate
ln -s elova $PKG/usr/bin/touchscreen_calibrate.elo-mt-usb

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a \
  readme.txt Elo_OEM_\&_EU_LA.txt Elo-Linux-MT-USB-Driver_List-of-New-Features.txt \
  $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
chmod 644 $PKG/usr/doc/$PRGNAM-$VERSION/*

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
cat $CWD/doinst.sh > $PKG/install/doinst.sh

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$PKGVER-$ARCH-$BUILD$TAG.$PKGTYPE