et-mode - Added support for 300, 1200 and 9600 baud packet operation

overlay/etc/skel/.config/systemd/user/et-service-direwolf-300.service

@@ -0,0 +1,20 @@
+# Author  : Gaston Gonzalez
+# Date    : 13 January 2025
+# Purpose : User systemd unit file for EmComm Tools Dire Wolf 300 baud
+#         : packet service.
+#
+# Usage: 
+#  Check status       : systemctl --user status et-service-direwolf-300
+#  Start service      : systemctl --user start et-service-direwolf-300
+#  Stop service       : systemctl --user stop et-service-direwolf-300
+#  Reload this config : systemctl --user daemon-reload
+
+[Unit]
+Description=EmComm Tools Dire Wolf 300 baud packet service
+
+[Service]
+ExecStart=/opt/emcomm-tools/bin/et-direwolf start 300
+Restart=no
+
+[Install]
+WantedBy=multi-user.target

overlay/etc/skel/.config/systemd/user/et-service-direwolf-9600.service

@@ -0,0 +1,20 @@
+# Author  : Gaston Gonzalez
+# Date    : 13 January 2025
+# Purpose : User systemd unit file for EmComm Tools Dire Wolf 9600 baud
+#         : packet service.
+#
+# Usage: 
+#  Check status       : systemctl --user status et-service-direwolf-9600
+#  Start service      : systemctl --user start et-service-direwolf-9600
+#  Stop service       : systemctl --user stop et-service-direwolf-9600
+#  Reload this config : systemctl --user daemon-reload
+
+[Unit]
+Description=EmComm Tools Dire Wolf 9600 baud packet service
+
+[Service]
+ExecStart=/opt/emcomm-tools/bin/et-direwolf start 9600
+Restart=no
+
+[Install]
+WantedBy=multi-user.target

overlay/opt/emcomm-tools/bin/et-direwolf

@@ -2,7 +2,7 @@
 #
 # Author  : Gaston Gonzalez
 # Date    : 1 November 2024
-# Updated : 8 November 2024
+# Updated : 14 January 2025
 # Purpose : Wrapper script for starting Dire Wolf with PnP support
 #
 # Preconditions:
@@ -23,7 +23,9 @@ usage() {
   echo "  <type>"
   echo "    aprs-digipeater    - Run in RF-only APRS digipeater mode"
   echo "    packet-digipeater  - Run in RF-only packet digipeater mode"
-  echo "    simple             - Run in simple packet mode"
+  echo "    simple             - Run in simple (1200 baud) packet mode"
+  echo "    300                - Run in 300 baud packet mode (HF)"
+  echo "    9600               - Run in 9600 baud packet mode (VHF/UHF)"
 }
 
 if [ $# -ne 2 ]; then
@@ -31,6 +33,16 @@ if [ $# -ne 2 ]; then
   exit 1
 fi
 
+check_9600_baud () {
+
+  # For 9600 baud operation, we use the /dev/et-cat device directly
+  # in direwolf, instead of going through rigctl.
+  if [ ! -e /dev/et-cat ]; then
+    et-log "PTT devices not found for 9600 baud operation."
+    exit 1
+  fi
+}
+
 MODE=$2
 case "${MODE}" in
   aprs-digipeater)
@@ -42,6 +54,13 @@ case "${MODE}" in
   simple)
     DIREWOLF_TEMPLATE_CONF_FILE="${ET_HOME}/conf/template.d/packet/direwolf.${MODE}.conf"
   ;;
+  300)
+    DIREWOLF_TEMPLATE_CONF_FILE="${ET_HOME}/conf/template.d/packet/direwolf.${MODE}.conf"
+  ;;
+  9600)
+    check_9600_baud
+    DIREWOLF_TEMPLATE_CONF_FILE="${ET_HOME}/conf/template.d/packet/direwolf.${MODE}.conf"
+  ;;
   *)
     et-log "Can't started Dire Wolf. Mode '${MODE}' not supported"
     usage
@@ -60,7 +79,7 @@ notify_user() {
 [ ! -e ${ET_LOG_DIR} ] && mkdir -p ${ET_LOG_DIR}
 
 start() {
-  update-config
+  update_config
   
   if [ $? -eq 0 ]; then
 
@@ -81,7 +100,8 @@ start() {
   fi
 }
 
-update-config () {
+
+update_config () {
 
     et-log "Attempting to start Dire Wolf in mode: '${MODE}'"
 
@@ -140,7 +160,7 @@ case $1 in
     start
     ;;
   update-config)
-    update-config
+    update_config
     ;;
   *)
     echo "Invalid command."

overlay/opt/emcomm-tools/bin/et-kill-all

@@ -2,6 +2,7 @@
 #
 # Author   : Gaston Gonzalez
 # Date     : 12 November 2024
+# Updated  : 13 January 2025
 # Purpose  : Stops all EmComm Tools sound-based services (i.e. modems) and
 #            amatuer radio applications to ensure a clean start for the next mode.
 
@@ -11,6 +12,8 @@ stop_all_services() {
   systemctl --user stop et-service-winlink-ardop
   systemctl --user stop et-service-winlink-packet
   systemctl --user stop et-service-ardop
+  systemctl --user stop et-service-direwolf-300
+  systemctl --user stop et-service-direwolf-9600
   systemctl --user stop et-service-direwolf-simple
   systemctl --user stop et-service-direwolf-aprs-digipeater
   systemctl --user stop et-service-direwolf-packet-digipeater

overlay/opt/emcomm-tools/bin/et-mode

@@ -2,7 +2,7 @@
 #
 # Author   : Gaston Gonzalez
 # Date     : 6 November 2024
-# Updated  : 5 December 2024
+# Updated  : 14 January 2025
 # Purpose  : Configures the system for a specific mode of operation
 
 # Use a simple text file to save the state of the last mode selected
@@ -19,6 +19,9 @@ MODE_ID_PACKET_DIGIPEATER="packet-digipeater"
 MODE_ID_WINLINK_ARDOP="winlink-ardop" 
 MODE_ID_WINLINK_PACKET="winlink-packet" 
 
+# Default to 1200 baud
+PACKET_MODE=simple
+
 # Attempt to stop all EmComm Tools services regardless if they are running.
 stop_all_services() {
   et-kill-all 
@@ -63,6 +66,23 @@ start_and_wait_for_service() {
   exit_on_service_failure ${systemd_unit_name}
 }
 
+select_direwolf_mode () {
+  packet_mode=()
+  packet_mode+=("simple" "1200 baud (default for VHF/UHF)")
+  packet_mode+=("9600" "9600 baud (VHF/UHF)")
+  packet_mode+=("300" "300 baud (HF)")
+
+  PACKET_MODE=$(dialog --clear --menu "Select a modem" 16 65 10 "${packet_mode[@]}" 3>&1 1>&2 2>&3)
+  exit_status=$?
+
+  tput sgr 0 && clear
+
+  if [ ${exit_status} -ne 0 ]; then
+    et-log "No modem selected. Mode will not be started."
+    exit 1
+  fi  
+}
+
 # Build list of options
 options=()
 options+=("${MODE_ID_NONE}" "No mode selected")
@@ -100,12 +120,19 @@ if [ $exit_status -eq 0 ]; then
       et-yaac start
     ;;
     ${MODE_ID_BBS_CLIENT})
-      start_and_wait_for_service et-service-direwolf-simple
+      select_direwolf_mode
+      et-log "Using ${PACKET_MODE} as the modem speed."
+
+      start_and_wait_for_service et-service-direwolf-${PACKET_MODE}
       et-log "Starting Paracon."
       et-paracon start
     ;;
     ${MODE_ID_BBS_CLIENT2})
-      start_and_wait_for_service et-service-direwolf-simple
+      select_direwolf_mode
+      et-log "Using ${PACKET_MODE} as the modem speed."
+
+      start_and_wait_for_service et-service-direwolf-${PACKET_MODE}
+
       et-log "Starting QtTermTCP."
       et-qttermtcp start
     ;;

overlay/opt/emcomm-tools/conf/template.d/packet/direwolf.300.conf

@@ -1,7 +1,7 @@
 # Author  : Gaston Gonzalez
 # Date    : 31 October 2024
-# Updated : 10 January 2025
-# Purpose : Dire Wolf template for basic packet operation  
+# Updated : 13 January 2025
+# Purpose : Dire Wolf template for 300 baud packet operation  
 
 # Audio settings
 ADEVICE {{ET_AUDIO_DEVICE}}
@@ -11,11 +11,13 @@ CHANNEL 0
 MYCALL {{ET_CALLSIGN}}
 
 # Modem settings
+# Use 7 decoders spaced 30 Hz apart to improve chances of decode on HF.
 MODEM 300 A- 7@30
 PACLEN 60
 FRACK 5
 MAXFRAME 1
-# Settings from The Modern Ham (KN4MKB)
+
+# More modem settings from The Modern Ham (KN4MKB)
 PERSIST 63
 SLOTTIME 12
 RETRY 10
@@ -27,6 +29,7 @@ TXTAIL 30
 # EmComm Tools uses Hamlib's rig control daemon for all radio interfaces.
 PTT RIG 2 localhost:4532
 
-# Enable ports to allow other applications use Dire Wolf as the packet engine
+# Enable ports to allow other applications to use Dire Wolf as the
+# packet engine.
 AGWPORT 8000
 KISSPORT 8001

overlay/opt/emcomm-tools/conf/template.d/packet/direwolf.9600.conf

@@ -0,0 +1,27 @@
+# Author  : Gaston Gonzalez
+# Date    : 12 January 2025
+# Purpose : Dire Wolf template for 9600 baud packet operation  
+
+# Audio settings
+ADEVICE {{ET_AUDIO_DEVICE}}
+ARATE 48000
+CHANNEL 0
+
+# User settings
+MYCALL {{ET_CALLSIGN}}
+
+# Modem settings
+MODEM 9600
+# Use TXDELAY fro UZ7HO: 15 * 10 = 150ms
+TXDELAY 15
+# Use TXTAIL from UZ7HO: 5 * 10 = 50ms
+TXTAIL 5
+
+# For 9600 baud, use RTS to key the PTT. This is the only case
+# where we do not use Hamlib's rigctl in EmComm Tools.
+PTT /dev/et-cat RTS
+
+# Enable ports to allow other applications to use Dire Wolf as the
+# packet engine.
+AGWPORT 8000
+KISSPORT 8001