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emcomm-tools-os-community/overlay/opt/emcomm-tools/bin/et-js8call
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2025-10-07 06:28:42 -07:00

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#!/bin/bash
#
# Author : Gaston Gonzalez
# Date : 24 October 2024
# Updated : 7 October 2025
# Purpose : Wrapper script for starting JS8Call with PnP support
#
# Preconditions
# 1. Supported radio and audio interface are connected and properly detected
#
# Postconditions
# 1. Stop all running EmComm Tools modes
# 2. JS8Call audio settings updated
# 3. JS8Call started
. /opt/emcomm-tools/bin/et-common
usage() {
echo "usage: $(basename $0) <command>"
echo " start - Update config and start JS8Call"
echo " update-config - Update config"
}
if [ $# -ne 1 ]; then
usage
exit 1
fi
notify_user() {
notify-send \
-t 5000 \
--app-name="EmComm Tools" \
"$1"
}
start() {
# Ensure that we have a pre-initialized CAT control connection for select radios
prime_rigctld_conn
/opt/emcomm-tools/bin/et-kill-all && update-config && /usr/bin/js8call &
if [ ! -e /dev/et-gps ]; then
notify-send -u critical -i \
/usr/share/icons/Yaru/48x48/status/dialog-information.png \
"No GPS. Ensure your time is accurate when JS8 starts."
fi
}
update-config() {
JS8CALL_CONF_FILE="${HOME}/.config/JS8Call.ini"
[ -z "$ET_USER_CONFIG" ] && ET_USER_CONFIG="${HOME}/.config/emcomm-tools/user.json"
# Update configuration with current callsign and grid
CALLSIGN=$(cat ${ET_USER_CONFIG} | jq -r .callsign)
GRID=$(et-system-info grid)
if [ "${CALLSIGN}" = "N0CALL" ]; then
notify_user "Can't start JS8Call. No callsign set. Run: et-user."
exit 1
fi
sed -i "s|^MyCall.*|MyCall=${CALLSIGN}|" ${JS8CALL_CONF_FILE}
sed -i "s|^MyGrid.*|MyGrid=${GRID}|" ${JS8CALL_CONF_FILE}
ET_RELEASE=$(et-system-info release)
sed -i "s|^MyInfo.*|MyInfo=${ET_RELEASE}|" ${JS8CALL_CONF_FILE}
et-log "Updated JS8Call configuration with user callsign '${CALLSIGN}' and grid: '${GRID}'"
# 1. Check if the symlink was created by the udev rules
if [ -e /dev/et-audio ]; then
# 2. Check that this device was properly tagged with the ET_AUDIO env variable with a udev rule
APLAY_OUT=$(arecord -l | grep ET_AUDIO)
if [ $? -eq 0 ]; then
AUDIO_DEVICE=$(echo $APLAY_OUT | cut -d"," -f2 | cut -d":" -f1 | awk '{print $2}')
# JS8Call has an issue decoding the received audio following a
# transmission when the device below is used.
#
#JS8_AUDIO_DEVICE="plughw:CARD=ET_AUDIO,DEV=${AUDIO_DEVICE}"
#
# Instead, the following device solves this issue:
JS8_AUDIO_DEVICE="sysdefault:CARD=ET_AUDIO"
et-log "Using '${JS8_AUDIO_DEVICE}' for JS8Call configuration."
# 3. Check for existing JS8Call sound configuration
## Update input
grep "^SoundInName" ${JS8CALL_CONF_FILE}
if [ $? -eq 0 ]; then
sed -i "s|^SoundInName.*|SoundInName=\"${JS8_AUDIO_DEVICE}\"|" ${JS8CALL_CONF_FILE}
else
echo "SoundInName=\"${JS8_AUDIO_DEVICE}\"" >> ${JS8CALL_CONF_FILE}
fi
## Update output
grep "^SoundOutName" ${JS8CALL_CONF_FILE}
if [ $? -eq 0 ]; then
sed -i "s|^SoundOutName.*|SoundOutName=\"${JS8_AUDIO_DEVICE}\"|" ${JS8CALL_CONF_FILE}
else
echo "SoundOutName=\"${JS8_AUDIO_DEVICE}\"" >> ${JS8CALL_CONF_FILE}
fi
## Configure ALSA settings for sound card
/opt/emcomm-tools/bin/et-audio update-config
else
et-log "No ET_AUDIO device detected."
notify_user "Can't start JS8Call. No ET_AUDIO device detected."
exit 1
fi
else
et-log "No ET_AUDIO device plugged in."
notify_user "Can't start JS8Call. No supported audio device plugged in."
exit 1
fi
}
case $1 in
start)
start
;;
update-config)
update-config
;;
*)
echo "Invalid command."
usage
exit 1
;;
esac