#!/bin/sh
#
# U-boot cfg nand map load/save management script
#
# $Id: rc.cfg,v 1.2 2014/09/15 19:06:44 misho Exp $

CFG_NAND_LIST="/etc/cfg.map"
CFG_NAND_MAP="/dev/ada0g"
CFG_NAND_SIZE=262144

UPGRADE_GPIO_PINS=""

cd ${2:-/etc}

case "$1" in
	load)
		imgupd -gs ${CFG_NAND_SIZE} -f ${CFG_NAND_MAP} | \
		      gunzip 2>&- | cpio -iud 2>&- || exit 1
		;;
	save)
		if [ ! -r ${CFG_NAND_LIST} ];then
			echo "# Auto generated manifest file" >${CFG_NAND_LIST}
			find . >>${CFG_NAND_LIST}
			if [ $? -ne 0 -o ! -r ${CFG_NAND_LIST} ]; then
				echo "Manifest cfg nand map - file '${CFG_NAND_LIST}' not found!"
				exit 1
			fi
		fi

		sed -nE -e 's/^ *([^ #]+) */\1/p' < ${CFG_NAND_LIST} | xargs find | \
			cpio -o | gzip -9 | \
			imgupd -is ${CFG_NAND_SIZE} -f ${CFG_NAND_MAP} || exit 1
		;;
	erase)
		imgupd -is ${CFG_NAND_SIZE} -f ${CFG_NAND_MAP} /dev/zero || exit 1
                echo "Config NAND was erased!"
		;;
	restore)
		ELWIX_REMOTE_HOST=`cat /etc/myelwix`
		ping -c1 $(echo ${ELWIX_REMOTE_HOST} | cut -f3 -d '/' | cut -f2 -d '@') >/dev/null 2>&1
		if [ $? -ne 0 ]; then
			echo "ELWIX restore from host ${ELWIX_REMOTE_HOST} failed!!!"
			exit 1
		fi

		echo "ELWIX starting restore process from ${ELWIX_REMOTE_HOST}"
		fetch -q -o- --user-agent=ELWIX_Restore --allow-sslv2 \
			--no-verify-peer --no-verify-hostname ${ELWIX_REMOTE_HOST} | \
			imgupd -R -is ${CFG_NAND_SIZE} -f ${CFG_NAND_MAP} || exit 1
		echo "ELWIX restore process complete. Now rebooting system ..."
		;;
	backup)
		ELWIX_REMOTE_HOST="/tmp/elwix_cfg.bin"

		echo "ELWIX starting backup process to ${ELWIX_REMOTE_HOST}"
		imgupd -gs ${CFG_NAND_SIZE} -f ${CFG_NAND_MAP} ${ELWIX_REMOTE_HOST} || exit 1
		echo "ELWIX backup process complete."
		;;
	upgrade)
		echo "ELWIX switch to upgrade mode. Starting TFTPd ..."
		echo " You can upload now elwix_firmware.bin image to device with \"firmware\" name!!!"
		echo "  Example: put elwix_firmware.bin firmware"
		for i in ${UPGRADE_GPIO_PINS}; do
			gpioctl $i 1 >/dev/null 2>&1
		done
		TFTPd -wR
		;;
	*)
		echo "Missing parameter - available options are (load | save | erase | backup | restore | upgrade)"
		;;
esac

cd -