#

KERNEL_BIN?=netbsd-GENERIC_MD.bin
FTP_HOST?=ftp.NetBSD.org
FTP_PATH=pub/NetBSD/NetBSD-5.1_RC3

SCRAMBLE_C_URL?=http://mc.pp.se/dc/files/scramble.c
MAKEIP_TAR_GZ_URL?=http://mc.pp.se/dc/files/makeip.tar.gz
CDRTOOLS?=cdrtools-2.01
CDRTOOLS_TAR?=${CDRTOOLS}.tar.bz2
CDRTOOLS_URL?=ftp://ftp.berlios.de/pub/cdrecord/${CDRTOOLS_TAR}

FETCH=wget -nc
#FETCH=tnftp

#CDRDEV?= /dev/rcd0d
#CDRDEV= /dev/rcd1d
#CDRDEV= /dev/rcd0c
CDRDEV= SPTI:1,0,0
CDRSPEED?= 16

CDRECORD?= cdrecord
CDRECORD_OPT?= -dev=${CDRDEV} -speed=${CDRSPEED} driveropts=burnfree
MKISOFS?= mkisofs

all:	bootcd

bootcd:	data.raw audio.raw
	${CDRECORD} ${CDRECORD_OPT} -multi -audio audio.raw
	${CDRECORD} ${CDRECORD_OPT} -multi -xa data.raw

audio.raw:
	dd if=/dev/zero bs=2352 count=300 of=audio.raw

data.raw: IP.BIN data.iso
	( cat IP.BIN ; dd if=data.iso bs=2048 skip=16 ) > data.raw

data.iso: 1ST_READ.BIN
	${MKISOFS} -l -C 0,11702 -o data.iso 1ST_READ.BIN

1ST_READ.BIN: scramble ${KERNEL_BIN}
	./scramble ${KERNEL_BIN} 1ST_READ.BIN

${KERNEL_BIN}: ${KERNEL_BIN}.gz
	zcat ${KERNEL_BIN}.gz > ${KERNEL_BIN}

${KERNEL_BIN}.gz:
	${FETCH} ftp://${FTP_HOST}/${FTP_PATH}/dreamcast/binary/kernel/${KERNEL_BIN}.gz

scramble: scramble.c
	cc -O -o scramble scramble.c

scramble.c:
	${FETCH} ${SCRAMBLE_C_URL}

IP.BIN:	makeip ip.txt IP.TMPL
	./makeip ip.txt IP.BIN

makeip:	makeip.tar.gz
	tar -zxf makeip.tar.gz makeip.c
	cc -O -o makeip makeip.c

IP.TMPL: makeip.tar.gz
	tar -zxf makeip.tar.gz IP.TMPL

ip.txt:	makeip.tar.gz
	tar -zxf makeip.tar.gz ip.txt

makeip.tar.gz:
	${FETCH} ${MAKEIP_TAR_GZ_URL}

clean:
	rm -f data.raw data.iso audio.raw 1ST_READ.BIN

cleandir distclean:
	${MAKE} clean
	rm -f ${KERNEL_BIN}
	rm -f IP.BIN
	rm -f makeip scramble
	rm -f IP.TMPL ip.txt makeip.c
	rm -f ${CDRTOOLS_TAR}
	rm -rf ${CDRTOOLS}

cdrtools:
	${FETCH} ${CDRTOOLS_URL}
	tar -jxf ${CDRTOOLS_TAR}
	( cd ${CDRTOOLS} && make && make install )