#! /bin/sh

#
# This file is *NOT* generated by GNU Autoconf, but written by NIIBE Yutaka
#
# Copyright (C) 2010 Free Software Initiative of Japan
#
# This file is a part of Gnuk, a GnuPG USB Token implementation.
# Gnuk is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Gnuk is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
# or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
# License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

# Default settings
help=no
target=OLIMEX_STM32_H103
verbose=no
with_dfu=default
with_fsij=no
debug=no

# check /dev/random
if test ! -e /dev/random; then
  echo "/dev/random is required." >&2
  exit 1
fi

# Process each option
for option; do
  case $option in
  *=*)	optarg=`expr "X$option" : '[^=]*=\(.*\)'` ;;
  *)	optarg=yes ;;
  esac

  case $option in
  -h | --help)
    help=yes ;;
  --target=*)
    target=$optarg ;;
  -v | --verbose)
    verbose=yes ;;
  --enable-debug)
    debug=yes;;
  --disable-debug)
    debug=no;;
  --with-dfu)
    with_dfu=yes ;;
  --without-dfu)
    with_dfu=no ;;
  --with-fsij)
    with_fsij=yes ;;
  --without-fsij)
    with_fsij=no ;;
  *)
    echo "Unrecognized option \`$option'" >&2
    echo "Try \`$0 --help' for more information." >&2
    exit 1
    ;;
  esac
done

if test "$help" = "yes"; then
  cat <<EOF
Usage: $0 [OPTION]...

Defaults for the options are specified in brackets.

Configuration:
  -h, --help		display this help and exit	[no]
  --target=TARGET	specify target			[OLIMEX_STM32_H103]
			supported targes are:
			   OLIMEX_STM32_H103
			   STM32_PRIMER2
			   CQ_STARM
  --enable-debug	debug with virtual COM port	[no]
  --with-dfu		build image for DFU 		[<target specific>]
  --with-fsij		Use FSIJ serial number		[no: random number]
EOF
  exit 0
fi

BOARD_MAKEFILE=../boards/$target/board.mk
if test -f $BOARD_MAKEFILE; then
  echo "Configured for target: $target"
else
  echo "Unsupported target \`$target'" >&2
  exit 1
fi

# --with-dfu option
case $target in
CQ_STARM)
  if test "$with_dfu" = "default"; then
    with_dfu=yes;
  fi  ;;
*)
  if test "$with_dfu" = "default"; then
    with_dfu=no;
  fi  ;;
esac

# --with-fsij option
if test "$with_fsij" = "no"; then
  FSIJ_DEFINE="#undef WITH_FSIJ_SERIAL_NUMBER"
  SERIAL_NUMBER_FOUR_BYTES=`od -t u1 -N 4 /dev/random | sed -n -e '/^0000000/s/^0000000  *//' -e 's/  */,/gp'`
else
  if test "x$MAIL" = "x"; then
    echo "Please set MAIL shell variable to select FSIJ serial number." >&2
    exit 1
  fi
  FSIJ_DEFINE="#define WITH_FSIJ_SERIAL_NUMBER 1"
  SERIAL_NUMBER_FOUR_BYTES=`sed -n -e "/^$MAIL/s/^.* \(..\):\(..\):\(..\):\(..\)/0x\1, 0x\2, 0x\3, 0x\4/p" ../FSIJ_SERIAL_NUMBER`
fi

if test "$debug" = "yes"; then
  DEBUG_MAKE_OPTION="ENABLE_DEBUG=1"
  DEBUG_DEFINE="#define DEBUG 1"
else
  DEBUG_MAKE_OPTION="# ENABLE_DEBUG=1"
  DEBUG_DEFINE="#undef DEBUG"
fi

if test "$with_dfu" = "yes"; then
  echo "Configured for DFU"
  ORIGIN=0x08003000
  FLASH_SIZE=116k
  DFU_DEFINE="#define DFU_SUPPORT 1"
else
  echo "Configured for bare system (no-DFU)"
  ORIGIN=0x08000000
  FLASH_SIZE=128k
  DFU_DEFINE="#undef DFU_SUPPORT"
fi

sed -e "s%@BOARD_MAKEFILE@%$BOARD_MAKEFILE%" \
    -e "s%@DEBUG_MAKE_OPTION@%$DEBUG_MAKE_OPTION%" \
	< Makefile.in > Makefile
sed -e "s/@ORIGIN@/$ORIGIN/" -e "s/@FLASH_SIZE@/$FLASH_SIZE/" \
	< gnuk.ld.in > gnuk.ld
sed -e "s/@DEBUG_DEFINE@/$DEBUG_DEFINE/" \
    -e "s/@DFU_DEFINE@/$DFU_DEFINE/" \
    -e "s/@FSIJ_DEFINE@/$FSIJ_DEFINE/" \
    -e "s/@SERIAL_NUMBER_FOUR_BYTES@/$SERIAL_NUMBER_FOUR_BYTES/" \
	< config.h.in > config.h
exit 0