#! /bin/sh

if [ "x`uname`" != "xLinux"  ]; then
if [ "x`uname`" != "xFreeBSD" ]; then
if [ "x`uname`" != "xDarwin" ]; then
if [ "x`uname -o`" != "xCygwin"  ]; then
  echo "This is not a Cygwin, FreeBSD, Linux or Mac OS X system."
  echo "I'm so confused!"
  exit 1
fi
fi
fi
fi

# Ask user which device to target
unset HWDEF
unset DEV

while [ "x$DEV" = "x" ]
do
	echo "Select a target device:"
	echo ""
	echo "  1) Atmel ATmega128"
	echo "  2) Atmel ATmega103"
	echo "  3) Atmel AT90CAN128"
	echo "  4) Renesas H8/3068F"
	echo "  5) UNIX Emulation"
#	echo "  6) Renesas H8/3069F" # just an example
#	echo "  7) Renesas H8S/2676F" # just an example
#	echo "  8) OKI ML67Q5003" # just an example
	echo "  a) Atmel AT91R40008"
	echo "  b) Atmel AT91SAM7X(C)256"
	echo "  c) Atmel AT91SAM9260"
	echo ""
	echo -n "Selection -> "
	read answ

	case "$answ" in
	1) DEV=atmega128; ARCH=avr; CPU=m128 ;;
	2) DEV=atmega103; ARCH=avr; CPU=m103 ;;
	3) DEV=at90can128; ARCH=avr; CPU=c128; HWDEF="-DMCU_AT90CAN128 -DNUTMEM_STACKHEAP=4096" ;;
	4) DEV=H8/3068F; ARCH=h8300h ;;
	5) DEV=mac; ARCH=unix ;;
#	6) DEV=H8/3069F; ARCH=h8300h ;; # just an example
#	7) DEV=H8S/2676F; ARCH=h8300s ;; # just an example
#	8) DEV=ML67Q5003; ARCH=arm ;; # just an example
        a) DEV=AT91R40008; ARCH=arm; CPU=arm7tdmi ;;
	b) DEV=AT91SAM7X256; ARCH=arm; CPU=arm7tdmi ;;
	c) DEV=AT91SAM9260; ARCH=arm; CPU=arm9 ;;
	*)
		echo "invalid choice" ;;
	esac
done

# Set up environment for AVR microcontrollers

if [ "$ARCH" = "avr" ]; then

    # Verify that avr-gcc is in the users PATH

    if ! avr-gcc --version >/dev/null 2>&1
    then
	    echo "Can't find avr-gcc. :-("
	    echo ""
	    echo "This could mean either of the following:"
	    echo "  1: You don't have avr-gcc installed."
	    echo "  2: You don't have your PATH environment variable set right."
	    echo "Here is your PATH variable:"
	    echo ""
	    echo $PATH
	    echo ""
	    exit 1
    fi

    # Make links to included make fragments

    ln -s -f Makedefs.avr-gcc Makedefs
    ln -s -f Makerules.avr-gcc Makerules

    ln -s -f Makedefs.avr-gcc app/Makedefs
    ln -s -f Makerules.avr-gcc app/Makerules

    # Ask which target board is being used

    unset PLATFORM
    while [ "x$PLATFORM" = "x" ]
    do 
        echo "Do you use a standard Ethernut board?"
        echo ""
        echo "  0) No standard"
        echo "  1) Ethernut 1 (10 Mbit Realtek RTL8019AS)"
        echo "  2) Ethernut 2 (10/100 Mbit SMSC LAN91C111)"
        echo ""
        echo -n "Selection -> "
        read answ
        
        case "$answ" in
        0) ;;
        1) PLATFORM=ETHERNUT1 ;;
        2) PLATFORM=ETHERNUT2 ;;
	    *)
		    echo "invalid choice" ;;
        esac
    done

    # Ask which crystal is being used

    unset CRYSTAL
    while [ "x$CLOCKSEL" = "x" ]
    do 
        echo "Do you want to set a fixed cpu clock?"
        echo ""
        echo "  1) don't set clock"
        echo "  2)  7.3728 Mhz"
        echo "  3)  8.0000 Mhz"
        echo "  4) 12.0000 Mhz"
        echo "  5) 14.7456 Mhz"
        echo "  6) 16.0000 Mhz"
        echo ""
        echo -n "Selection -> "
        read answ
        
        case "$answ" in
        1) CLOCKSEL=1 ;;
        2) CLOCKSEL=2 ; CLOCK=-DNUT_CPU_FREQ=7372800 ;;
        3) CLOCKSEL=3 ; CLOCK=-DNUT_CPU_FREQ=8000000 ;;
        4) CLOCKSEL=4 ; CLOCK=-DNUT_CPU_FREQ=12000000 ;;
        5) CLOCKSEL=5 ; CLOCK=-DNUT_CPU_FREQ=14745600 ;;
        6) CLOCKSEL=6 ; CLOCK=-DNUT_CPU_FREQ=16000000 ;;
	    *)
		    echo "invalid choice" ;;
        esac
    done

    # Ask which isp programmer is being used

    unset UISP_PROG
    while [ "x$UISP_PROG" = "x" ]
    do
	    echo "Which isp programmer are you using?"
	    echo ""
	    echo "  1) stk200, stk300 or compatible"
	    echo "  2) skt500"
	    echo "  3) usbasp"
	    echo ""
	    echo -n "Selection -> "
	    read answ

	    case "$answ" in
	    1) UISP_PROG=stk200 ;;
	    2) UISP_PROG=stk500 ;;
	    3) UISP_PROG=usbasp ;;
	    *)
		    echo "invalid choice" ;;
	    esac
    done

    unset PROGRAMMER
    while [ "x$PROGRAMMER" = "x" ]
    do
        echo "Which programming software are you using?"
        echo ""
        echo "  1) uisp"
        echo "  2) avrdude"
        echo "  9) mine is not listed here"
        echo ""
        echo -n "Selection -> "
        read answ
        
        case "$answ" in
        1) PROGRAMMER=usip ; BURNFLAGS="-dprog=$UISP_PROG --erase --upload --verify if=\$(TARG)" ;;
        2) PROGRAMMER=avrdude
            if [ "$UISP_PROG" = "usbasp" ]; then
                BURNFLAGS="-p $CPU -c $UISP_PROG -U flash:w:\$(TARG)"
	    else
                BURNFLAGS="-p $CPU -c $UISP_PROG -U flash:w:\$(TARG) -E noreset"
            fi
        ;;
        9) PROGRAMMER="echo" ; BURNFLAGS="See UserConf.mk" ;;
        *)
            echo "invalid choice" ;;
        esac
    done

    # Generate the config file

    cat <<EOF > UserConf.mk
PLATFORM=$PLATFORM
MCU=$DEV
ARCH=$ARCH
HWDEF=-D__HARVARD_ARCH__ $CLOCK -D\$(PLATFORM) $HWDEF
BURN=$PROGRAMMER
BURNFLAGS=$BURNFLAGS
CRUROM=crurom
EOF

    echo "Your system is now configured to build for $DEV."
    echo "Change to subdirectory lib and type \`make clean\` "
    echo "and \`make install\` to build the system."

    exit 0

fi

# Set up environment for H8/300H and H8S  microcontrollers

if [ "$ARCH" = "h8300h" -o "$ARCH" = "h8300s" ]; then

    # Verify if h8300-elf-gcc is in the users PATH

    if ! h8300-elf-gcc --version >/dev/null 2>&1
    then
	    echo "Can't find H8 gcc. :-("
	    echo ""
	    echo "This could mean either of the following:"
	    echo "  1: You don't have H8 gcc installed. Go to http://www.kpitgnutools.com"
	    echo "  2: You don't have your PATH environment variable set right."
	    echo "Here is your PATH variable:"
	    echo ""
	    echo $PATH
    	    echo ""
	    exit 1
    fi

    # Set up device dependant compiler flags

    if [ "$ARCH" = "h8300h" ]; then
	# flags for H8/300H micros
	MCUOPTS="-mh -mint32"
    else
	# flags for H8S micros
	MCUOPTS="-ms -mint32"
    fi

    # Setup paths to libc and libgcc for linker

    GCCVER=`h8300-elf-gcc --version|grep h8300-elf-gcc|cut -d ' ' -f 3`
    GCCDIR=`dirname \`which h8300-elf-gcc\``
    LIBGCCDIR="lib/gcc-lib/h8300-elf/$GCCVER/$ARCH/int32"
    LIBCDIR="h8300-elf/lib/$ARCH/int32"
    LDDIRS="-L $GCCDIR/../$LIBGCCDIR -L $GCCDIR/../$LIBCDIR"

    # Select whether code is to be executed from ROM or RAM

    CODEMEM="rom"
    unset RUNFLAG
    echo "Ethernut code can be run from RAM. This is useful when you are"
    echo "debugging your application. Remember that your hardware must"
    echo "have enough RAM to store data and program code."
    echo ""
    echo -n "Should Ethernut be executed from RAM (default=No)? Y(es)/N(o) "
    read answ

    if [ "$answ" = "y" -o "$answ" = "Y" ]; then
	RUNFLAG="-DTEXT_IN_RAM"
	CODEMEM="ram"
    fi
    echo ""

    # Choose appropriate linker script

    case "$DEV" in
	# H8/300H micros
	H8/3068F) LDSCRIPT=nut-h8-3068f-$CODEMEM.ld ;;
	H8/3069F) LDSCRIPT=nut-h8-3069f-$CODEMEM.ld ;; # just an example

	# H8S micros
	H8S/2676F) LDSCRIPT=nut-h8s-2676f-$CODEMEM.ld ;; # just an example
    esac

    # Make links to included make fragments

    ln -s -f Makedefs.h8-gcc Makedefs
    ln -s -f Makerules.h8-gcc Makerules

    ln -s -f Makedefs.h8-gcc app/Makedefs
    ln -s -f Makerules.h8-gcc app/Makerules

    # Generate config file
    cat <<EOF > UserConf.mk
DEVICE=$DEV # for future use
MCU=$ARCH
ARCH=$ARCH
MCUOPTS=$MCUOPTS
RUNFLAG=$RUNFLAG
LDSCRIPT=\$(top_srcdir)/arch/$ARCH/ldscripts/$LDSCRIPT
LDDIRS=$LDDIRS
BURN=h8write
BURNFLAGS=-3068 \$(TARG)
CRUROM = \$(top_srcdir)/tools/crurom/crurom
EOF

    echo "Your system is now configured to build for $DEV."
    echo "Type \`make\` to build the system."

    exit 0
fi

# Set up environment for ARM  microcontrollers ======================================================

if [ "$ARCH" = "arm" ]; then

    # Verify if arm-elf-gcc is in the users PATH

    if ! arm-elf-gcc --version >/dev/null 2>&1
    then
	    echo "Can't find ARM gcc. :-("
	    echo ""
	    echo "This could mean either of the following:"
	    echo "  1: You don't have ARM GCC installed."
	    echo "  2: You don't have your PATH environment variable set right."
	    echo "Here is your PATH variable:"
	    echo ""
	    echo $PATH
    	    echo ""
	    exit 1
    fi

    # Set up device dependant compiler flags

#    if [ "$ARCH" = "h8300h" ]; then
#	# flags for H8/300H micros
#	MCUOPTS="-mh -mint32"
#    else
#	# flags for H8S micros
#	MCUOPTS="-ms -mint32"
#    fi
    MCUOPTS="-mcpu=$CPU"

    # Setup paths to libc and libgcc for linker

#    GCCVER=`arm-elf-gcc --version|grep arm-elf-gcc|cut -d ' ' -f 3`
#    GCCDIR=`dirname \`which arm-elf-gcc\``
#    LIBGCCDIR="lib/gcc-lib/arm-elf/$GCCVER/$ARCH"
#    LIBCDIR="arm-elf/lib/$ARCH"
#    LDDIRS="-L $GCCDIR/../$LIBGCCDIR -L $GCCDIR/../$LIBCDIR"

    # Ask which target board is being used

    unset PLATFORM
    while [ "x$PLATFORM" = "x" ]
    do 
        echo "Do you use a standard board?"
        echo ""
        echo "  0) No standard"
	if [ "$DEV" = "AT91R40008" ]; then
            echo "  1) Ethernut 3"
	fi
	if [ "$DEV" = "AT91SAM7X256" ]; then
            echo "  2) Atmel AT91SAM7X Evaluation Kit"
	fi
	if [ "$DEV" = "AT91SAM9260" ]; then
	    echo "  3) Atmel AT91SAM9260 Evaluation Kit"
	fi
        echo ""
        echo -n "Selection -> "
        read answ

        case "$answ" in
        0) ;;
        1) PLATFORM=ETHERNUT3 ;;
        2) PLATFORM=AT91SAM7X_EK ;;
        3) PLATFORM=AT91SAM9260_EK ;;
	*)
	    echo "invalid choice" ;;
        esac
    done

    # Select linker script

    if [ "$DEV" = "AT91SAM7X256" ]; then
        LDNAME="at91sam7x256_rom"
    else
        echo "Nut/OS can be run from RAM. This is useful when you are"
        echo "using a TFTP bootloader or debugging your application."
        echo "Remember that your hardware must have enough RAM"
        echo "to store data and program code."
        echo ""
        echo -n "Should Nut/OS be executed from RAM (default=Yes)? Y(es)/N(o) "
        read answ

        if [ "$answ" = "n" -o "$answ" = "N" ]; then
            if [ "$DEV" = "AT91SAM9260" ]; then
                LDNAME="at91sam9260_ram"
            else
                LDNAME="at91_boot"
            fi
        else
            if [ "$DEV" = "AT91SAM9260" ]; then
                LDNAME="at91sam9260_ram"
            else
                LDNAME="at91_ram"
            fi
        fi
    fi
    echo ""

    # Make links to included make fragments

    ln -s -f Makedefs.arm-gcc Makedefs
    ln -s -f Makerules.arm-gcc Makerules

    ln -s -f Makedefs.arm-gcc app/Makedefs
    ln -s -f Makerules.arm-gcc app/Makerules

    # Generate config file
    cat <<EOF > UserConf.mk
PLATFORM=$PLATFORM
HWDEF+=-D\$(PLATFORM)
DEVICE=$DEV
MCU=$CPU
ARCH=$ARCH
MCUOPTS=$MCUOPTS
RUNFLAG=$RUNFLAG
LDNAME=$LDNAME
LDSCRIPT=\$(top_srcdir)/arch/arm/ldscripts/\$(LDNAME).ld
#LDDIRS=$LDDIRS
#BURN=jtagomat
#BURNFLAGS=\$(TARG)
CRUROM=crurom
EOF

    echo "Your system is now configured to build for $DEV."
    echo "Change to subdirectory lib and type \`make clean\` "
    echo "and \`make install\` to build the system."

    exit 0
fi


if [ "$ARCH" = "unix" ]; then

    # Verify that gcc is in the users PATH

    if ! gcc --version >/dev/null 2>&1
    then
	    echo "Can't find gcc. :-("
	    echo ""
	    echo "This could mean either of the following:"
	    echo "  1: You don't have gcc installed."
	    echo "  2: You don't have your PATH environment variable set right."
	    echo "Here is your PATH variable:"
	    echo ""
	    echo $PATH
	    echo ""
	    exit 1
    fi

    # Make links to included make fragments

    ln -s -f Makedefs.unix-gcc Makedefs
    ln -s -f Makerules.unix-gcc Makerules

    ln -s -f Makedefs.unix-gcc app/Makedefs
    ln -s -f Makerules.unix-gcc app/Makerules

    # Generate the config file

    cat <<EOF > UserConf.mk
CRUROM = \$(top_srcdir)/tools/crurom/crurom
ARCH=$ARCH
MCU=$ARCH
EOF

    # Get system include paths for stdio.h, errno.h, sys/types.h, fcntl.h
    echo "#include <stdio.h>"       > include_test.c
    echo "#include <fcntl.h>"      >> include_test.c
    echo "#include <errno.h>"      >> include_test.c
    echo "#include <unistd.h>"     >> include_test.c
    echo "#include <netdb.h>"      >> include_test.c
    echo "#include <netinet/in.h>" >> include_test.c
    echo "#include <sys/types.h>"  >> include_test.c
    echo "#include <sys/socket.h>" >> include_test.c
    gcc -E include_test.c | grep stdio | head -1 | \
         sed 's/#....\(\/.*\/stdio.h\).*/#include "\1"/'  > include/stdio_orig.h
    gcc -E include_test.c | grep unistd | head -1 | \
         sed 's/#....\(\/.*\/unistd.h\).*/#include "\1"/' > include/unistd_orig.h
    gcc -E include_test.c | grep fcntl | head -1 | \
         sed 's/#....\(\/.*\/fcntl.h\).*/#include "\1"/'  > include/fcntl_orig.h
    gcc -E include_test.c | grep errno | head -1 | \
         sed 's/#....\(\/.*\/errno.h\).*/#include "\1"/'  > include/errno_orig.h
    gcc -E include_test.c | grep "sys/types.h" | head -1 | \
         sed 's/#....\(\/.*\/sys\/types.h\).*/#include "\1"/' > include/sys/types_orig.h
    gcc -E include_test.c | grep "sys/socket" | head -1 | \
         sed 's/#....\(\/.*\/sys\/socket.h\).*/#include "\1"/'  > include/sys/socket_orig.h
    gcc -E include_test.c | grep netdb | head -1 | \
         sed 's/#....\(\/.*\/netdb.h\).*/#include "\1"/'  > include/netdb_orig.h
    gcc -E include_test.c | grep "netinet/in" | head -1 | \
         sed 's/#....\(\/.*\/netinet\/in.h\).*/#include "\1"/'  > include/netinet/in_orig.h
    rm include_test.c

    # assert lib dirs
    mkdir -p lib/gcc/$ARCH

    # ready

    echo "Your system is now configured to build for your native system."
    echo "Change to lib and type \`make\` to build the system."

    exit 0

fi