Script to setup the UDRC-II with the DR-1X for use with SvxLink

udrc2-dr1x-svxlink-init.sh

#!/bin/bash

echo "Configuring ALSA mixer for the DR-1X..."
sudo amixer -c udrc -s << EOF
#  If you change your level settings, make a new script, save, and run it
#  Set input and output levels to 0dB
sset 'ADC Level' -5.5dB
sset 'LO Driver Gain' 0.0dB
sset 'PCM' 0.0dB

#  Turn on AFOUT
sset 'CM_L to Left Mixer Negative Resistor' '10 kOhm'
sset 'IN1_L to Left Mixer Positive Resistor' '10 kOhm'

#  Turn on DISCOUT
sset 'CM_R to Right Mixer Negative Resistor' '10 kOhm'
sset 'IN1_R to Right Mixer Positive Resistor' '10 kOhm'

#  Turn off unnecessary pins
sset 'IN1_L to Right Mixer Negative Resistor' 'Off'
sset 'IN1_R to Left Mixer Positive Resistor' 'Off'
sset 'IN2_L to Left Mixer Positive Resistor' 'Off'
sset 'IN2_L to Right Mixer Positive Resistor' 'Off'
sset 'IN2_R to Left Mixer Negative Resistor' 'Off'
sset 'IN2_R to Right Mixer Positive Resistor' 'Off'
sset 'IN3_L to Left Mixer Positive Resistor' 'Off'
sset 'IN3_L to Right Mixer Negative Resistor' 'Off'
sset 'IN3_R to Left Mixer Negative Resistor' 'Off'
sset 'IN3_R to Right Mixer Positive Resistor' 'Off'

sset 'Mic PGA' off
sset 'PGA Level' 0

# Disable and clear AGC
sset 'ADCFGA Right Mute' off
sset 'ADCFGA Left Mute' off
sset 'AGC Attack Time' 0
sset 'AGC Decay Time' 0
sset 'AGC Gain Hysteresis' 0
sset 'AGC Hysteresis' 0
sset 'AGC Max PGA' 0
sset 'AGC Noise Debounce' 0
sset 'AGC Noise Threshold' 0
sset 'AGC Signal Debounce' 0
sset 'AGC Target Level' 0
sset 'AGC Left' off
sset 'AGC Right' off

# Turn off High Power output
sset 'HP DAC' off
sset 'HP Driver Gain' 0
sset 'HPL Output Mixer L_DAC' off
sset 'HPR Output Mixer R_DAC' off
sset 'HPL Output Mixer IN1_L' off
sset 'HPR Output Mixer IN1_R' off

#  Turn on the LO DAC
sset 'LO DAC' on

#  Turn on AFIN
sset 'LOL Output Mixer L_DAC' on

#  Turn on TONEIN
sset 'LOR Output Mixer R_DAC' on
EOF
echo "Saving ALSA config..."
sudo alsactl store


# GPIOS
if [ ! -f /sys/class/gpio/gpio5/value ];
then
	echo "Exporting PKSQL (GPIO5) for svxlink user..."
	sudo echo 5 > /sys/class/gpio/export
	sudo echo in > /sys/class/gpio/gpio5/direction
	sudo chown svxlink /sys/class/gpio/gpio5/value
else
	echo "Export for PKSQL (GPIO5) already exists, skipping..."
fi

if [ ! -f /sys/class/gpio/gpio12/value ];
then
	echo "Exporting PTT HD-15 (GPIO12) for svxlink user..."
	sudo echo 12 > /sys/class/gpio/export
	sudo echo out > /sys/class/gpio/gpio12/direction
	sudo echo 0 > /sys/class/gpio/gpio12/value
	sudo chown svxlink /sys/class/gpio/gpio12/value
else
	echo "Export for PTT HD-15 (GPIO12) already exists, skipping..."
fi

if [ ! -f /sys/class/gpio/gpio23/value ];
then
	echo "Exporting PTT DIN6 (GPIO23) for svxlink user..."
	sudo echo 23 > /sys/class/gpio/export
	sudo echo out > /sys/class/gpio/gpio23/direction
	sudo echo 0 > /sys/class/gpio/gpio23/value
	sudo chown svxlink /sys/class/gpio/gpio23/value
else
	echo "Export for PTT DIN6 (GPIO23) already exists, skipping..."
fi


echo "Setting UDRC-II GPIOs..."
sudo gpio -g mode 12 out
sudo gpio -g mode 25 in
sudo gpio -g mode 25 up
sudo gpio -g mode 5 in
sudo gpio -g mode 5 up
sudo gpio -g mode 6 out
sudo gpio -g write 6 1
sudo gpio -g mode 24 out
sudo gpio -g write 24 1
sudo gpio -g mode 22 out
sudo gpio -g write 22 1
sudo gpio -g mode 23 out
sudo gpio -g write 23 1
sudo gpio -g mode 27 out
sudo gpio -g write 27 1
sudo gpio -g write 12 1
sudo gpio -g write 6 0
sudo gpio -g write 22 1 
sudo gpio -g write 24 0
sudo gpio -g write 6 1

# Put the DR-1X into base mode so we can transmit
echo "Setting DR-1X to base mode..."
sudo gpio -g write 6 0
sudo gpio -g write 22 1 
sudo gpio -g write 24 0
sleep 1s

# Test TX by playing sound

echo "Activating PTT..."
sudo gpio -g write 12 1
echo "Playing startup sound..."
sleep 2s
sudo aplay -Dplughw:udrc -c 2 startup.wav
sleep 2s
echo "Deactivating PTT..."
sudo gpio -g write 12 0

#echo "Setting DR-1X back to repeater mode..."
#gpio -g write 22 0
#gpio -g write 24 0
#gpio -g write 6 1

echo "UDRC-II is now ready for SvxLink!"