#/bin/bash

RET=0
sleep 2

echo " " 
echo " "
echo " "
echo "######################################################################################"
echo "########################  BPI-R4PRO  FAN PWM Testing Start    ########################"

echo "###  Speed down the FAN slow about 5s by PWM0 ###"
echo 0 >  /sys/devices/platform/pwm-fan/hwmon/hwmon4/pwm1 2> /dev/null
sleep 5

echo "###  Speed up the FAN fast about 10s by PWM0 ###"
echo 255 >  /sys/devices/platform/pwm-fan/hwmon/hwmon4/pwm1 2> /dev/null
sleep 10

echo "###  Speed down the FAN slow by PWM0 completely ###"
echo 0 >  /sys/devices/platform/pwm-fan/hwmon/hwmon4/pwm1 2> /dev/null

while true
do
	read -t20 -s -n1  -p "### Please confirm if the FAN can work fine, enter y or n. "y" is good, "n" is for bad. ###" keypress
	if [ $? -eq 0 ]; then
		if [ ${keypress} == 'y' ]; then
			echo " "
			echo " "
			echo "###  FAN can work fine, FAN feature is good  ### "
			break
  		fi

		if [ ${keypress} == 'n' ]; then
			RET=1
			echo " "
			echo " "
			echo "Error Notice: FAN can not work fine, FAN feature is bad"
			break
		fi
	fi
	
	echo " "
done

echo "######################################################################################"
echo " "
echo " "
echo " "

sleep 2

exit ${RET}