#!/bin/sh

ShowUsage() {

	echo "$0" [option] [value]

	echo "[option list]:" 

	echo " -i  [value] # set input Volume from 0 ~ 100"

	echo " -o  [value] # set output Volume from 0 ~ 100"

	echo " -im [value] # 1 input Mute, 0 input Unmute"

	echo " -om [value] # 1 output Mute, 0 output Unmute"

	echo " -h # Show this usage"

	exit 1

}

dumpKeys() {

	echo "Enable_byte Volume_byte"

}

inputVoulme() {

	echo "Set input Volume : $value"

}

outputVolume() {

	echo "Set output Volume : $value"

}

setIutputMute() {

	echo "Set Input Mute : $value"

	if [ "$value" == 1 ]; then

		mixer igain 0

	else

		eval $(dumpKeys | tdb get Microphone)

		micEnable=$Enable_byte

		micVolume=$Volume_byte

		if [ "$micEnable" == 1 ]; then

			mixer igain $micVolume

		fi

	fi

}

setOutputMute() {

	echo "Set Output Mute : $value"

	if [ "$value" == 1 ]; then

		mixer vol 0

	else

		eval $(dumpKeys | tdb get Speaker)

		speakerEnable=$Enable_byte

		speakerVolume=$Volume_byte

		if [ "$speakerEnable" == 1 ]; then

			mixer vol $speakerVolume

		fi

	fi

}

option=$1

value=$2

case $option in

	-i)

		inputVoulme

		;

	-o)

		outputVolume

		;

	-im)

		setIutputMute

		;

	-om)

		setOutputMute

		;

	-h)

		ShowUsage

		;

	*)

		ShowUsage

		;

esac

exit 0