#!/bin/sh

type=""
device_type=""
check=n
mode=tftp

. /env/config

while getopt "ht:d:f:a:s:m:c" Option
do
if [ ${Option} = t ]; then
	type=${OPTARG}
elif [ ${Option} = d ]; then
	device_type=${OPTARG}
elif [ ${Option} = f ]; then
	imagename=${OPTARG}
elif [ ${Option} = a ]; then
	address=${OPTARG}
elif [ ${Option} = s ]; then
	size=${OPTARG}
elif [ ${Option} = c ]; then
	check=y
elif [ ${Option} = m ]; then
	mode=${OPTARG}
else
	. /env/bin/_update_help
	exit 0
fi
done

if [ x${type} = xkernel ]; then
	image=$kernelimage
elif [ x${type} = xrootfs ]; then
	image=$rootfsimage
elif [ x${type} = xbarebox ]; then
	image=$bareboximage
	if [ x${image} = x ]; then
		image=barebox.bin
	fi
elif [ x${type} = xuloader ]; then
	image=$uloaderimage
elif [ x${type} = xbareboxenv ]; then
	image=$bareboxenvimage
	if [ x${image} = x ]; then
		image=bareboxenv.bin
	fi
	type=env
else
	. /env/bin/_update_help
	exit 1
fi

if [ x${imagename} != x ]; then
	image=${imagename}
fi

if [ x${device_type} = xnand ]; then
	part=/dev/nand0.${type}.bb
elif [ x${device_type} = xnor ]; then
	part=/dev/nor0.${type}
else
	. /env/bin/_update_help
	exit 1
fi

if [ x${mode} != xtftp ] && [ x${mode} != xxmodem ] && [ x${mode} != xddr ]; then
	echo "unsupported mode ${mode}."
	. /env/bin/_update_help
	exit 1
fi

. /env/bin/_update || exit 1

if [ x${check} = xy ]; then
	if [ x${mode} = xddr ]; then
		crc32 -f $part
		crc32 $address+$size
	elif [ x${mode} = xtftp ]; then
		crc32 -f $part
	else
		crc32 -f $image -F $part
	fi
else
	true
fi