#!/bin/sh
################################## functions ##################################
mkdir -p /proc /sys /dev /mnt /tmp /opt /root /run

mount -t proc proc /proc
mount -t sysfs sysfs /sys
mount -t devtmpfs none /dev

exec < /dev/console > /dev/console 2>&1

for parm in $(cat /proc/cmdline); do
	case $parm in
	ramfs)
		RAMFS_MODE=1
		;;
	root=*)
		ROOT_DEVICE=`echo $parm | awk -F\= '{print $2}'`
		;;
	console=*)
		CONSOLE_DEVICE=`echo $parm | awk -F\= '{print $2}' | awk -F\, '{print $1}'`
		;;
	gpt=*)
		GPT_SUPPORT=`echo $parm | awk -F\= '{print $2}'`
		;;
	ota=*)
		OTA_SUPPORT=`echo $parm | awk -F\= '{print $2}'`
		;;
	esac
done

#mkfs_jffs2() <device in /dev/by-name>
mkfs_jffs2() {
	# format to jffs2
	local erase_block=$(cat /proc/mtd | grep "$(basename $1)" | awk '{print $3}')
	mkdir -p /tmp/jffs2.dir/tmp
	mkfs.jffs2 -p -e 0x${erase_block} -d /tmp/jffs2.dir -o /tmp/jffs2.img
	dd if=/tmp/jffs2.img of=$1
	rm -rf /tmp/jffs2.img /tmp/jffs2.dir
}

set_parts_by_name() {
	# create by-name
	local parts part
	mkdir -p /dev/by-name
	parts=$(sed 's/ /\n/g' /proc/cmdline \
		| awk -F'=' '/^partitions/{print $2}')
	for part in $(echo ${parts} | sed 's/:/ /g')
	do
		[ ! -e /dev/${part#*@} ] && mdev -s
		ln -s "/dev/${part#*@}" "/dev/by-name/${part%@*}"
	done
}

mount_UDISK()
{
    local root_dev="$(readlink /dev/by-name/rootfs)"
    mkdir -p /mnt/UDISK
    # fix UDISK
    if [ -h /dev/by-name/UDISK ]; then
        echo ${root_dev} | grep -q "mtdblock" \
            || /usr/sbin/fsck.ext4 -y /dev/by-name/UDISK &>/dev/null
    fi

    # mount UDISK
    if [ -h /dev/by-name/UDISK -a -d /mnt/UDISK ]; then
        case "${root_dev}" in
            /dev/mtdblock*)
                mount -t jffs2 /dev/by-name/UDISK /mnt/UDISK 2>/dev/null
                if [ "$?" -ne "0" ]; then
                    mkfs_jffs2 "/dev/by-name/UDISK"
                    mount -t jffs2 /dev/by-name/UDISK /mnt/UDISK 2>/dev/null
                fi
                ;;
            *)
                mount -t ext4 /dev/by-name/UDISK /mnt/UDISK 2>/dev/null
                if [ "$?" -ne "0" ]; then
                    mkfs.ext4 /dev/by-name/UDISK >/dev/null
                    mount -t ext4 /dev/by-name/UDISK /mnt/UDISK 2>/dev/null
                fi
                ;;
        esac
    fi

    # enable hotplug
    echo /sbin/mdev > /proc/sys/kernel/hotplug
}
#----------------------------------------------------------------

set_parts_by_name

mount_UDISK

/sbin/aw_ota_apply_img.sh

exec /bin/sh