#!/bin/sh

RTC_DEVICE="/dev/rtc"

if [ ! -e $RTC_DEVICE ]; then
    echo "SKIP: rtc device does not exist"
    exit 1
else
    echo "PASS: rtc device exists"
fi

/sbin/hwclock -f $RTC_DEVICE > /dev/null 2>&1

if [ $? -ne 0 ]; then
    echo "FAIL: rtc device open failed"
    exit 1
else
    echo "PASS: rtc device open success"
fi

dmesg -n 1
/sbin/hwclock --systohc > /dev/null 2>&1

if [ $? -ne 0 ]; then
    echo "FAIL: sync system clock and hardware clock failed"
    dmesg -n 7
    exit 1
else
    echo "PASS: sync system clock and hardware clock success"
fi

dmesg -n 7

time_check()
{
    RTC_TIME=$(/sbin/hwclock -r |awk '{print $4}')
    SYS_TIME=$(date +%m/%d/%Y-%X |awk '{print $1}' |awk -F- '{print $2}')

    if [ "$RTC_TIME" = "$SYS_TIME" ] ; then
        return 0
    fi

    return 1
}

exit_code=1

if time_check || time_check ; then
    echo "PASS: system time same with hardware time"
    exit_code=0
else
    echo "FAIL: system time different with hardware time"
    exit_code=1
fi

exit $exit_code