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#!/bin/bash
######################################################################################
# Definition of global constants.
######################################################################################
# "Firmware check"-compatible error codes
ERROR_BAD_ARGS=91
COMPONENT_NAME="radio_fw_upgrade"
######################################################################################
function loginfo() { logger -s -p info -t $COMPONENT_NAME "$@" 1>&2 ; }
function logwarn() { logger -s -p warning -t $COMPONENT_NAME "$@" 1>&2 ; }
function logerror() { logger -s -p error -t $COMPONENT_NAME "$@" 1>&2 ; }
######################################################################################
######################################################################################
# Print current radio firmware upgrade status and exit the application immediately.
# Globals:
# COMPONENT_NAME - name of the component.
# Arguments:
# $1 - exit code for this application.
# Returns:
# None (exits the application)
######################################################################################
function exitnow() {
loginfo "Radio firmware upgrade procedure exited with exit code [$1]"
#next_state "$UPGRADE_STATE_FINISHED"
exit "$1"
}
######################################################################################
# Parse command-line arguments for this application.
# Globals:
# FW_IMAGE_PATH - write-only, path to the upgrade image.
# Arguments:
# $@ - all command-line arguments of this application.
# Returns:
# 0 on success, 1 otherwise
######################################################################################
function parse_arguments() {
if [ $# != 1 ]; then
logerror "Invalid number of arguments"
return 1
fi
if [ ! -f "$1" ]; then
logerror "Firmware file [$1] does not exist"
return 1
fi
FW_IMAGE_PATH="$1"
return 0
}
######################################################################################
# Determine TTY flash port for Telit radios.
# Logic ported from telit_flash.
# Globals:
# TELIT_FLASH_TTY - write-only, TTY port for flashing Telit radios
# Arguments:
# None
# Returns:
# 0 on success, 1 otherwise
######################################################################################
function select_telit_flash_tty() {
loginfo "Setting up for LoRa USB card checks"
# Check for LoRa USB cards. Depending on how many there are inserted, use
# ttyUSB0 or ttyUSB1 or ttyUSB2
local port1=/sys/devices/platform/mts-io/ap1
local port2=/sys/devices/platform/mts-io/ap2
local hwversion="MTAC-LORA-1.0"
local lora_usb_count=0
local usbtty
loginfo "Checking for LoRa USB cards in AP1 and AP2"
if [ -d $port1 ] && [[ $(cat $port1/hw-version) = $hwversion ]]; then
loginfo "Found USB LoRa card on AP1"
lora_usb_count=$((lora_usb_count + 1))
loginfo "incremented lora_usb_count"
fi
loginfo "Past check on AP1"
if [ -d $port2 ] && [[ $(cat $port2/hw-version) = $hwversion ]]; then
loginfo "Found USB LoRa card on AP2"
lora_usb_count=$((lora_usb_count + 1))
fi
loginfo "Past check on AP2"
loginfo "lora_usb_count = $lora_usb_count"
case $lora_usb_count in
0)
usbtty="/dev/ttyUSB0"
;;
1)
usbtty="/dev/ttyUSB1"
;;
2)
usbtty="/dev/ttyUSB2"
;;
*)
# maybe this should just bail here?
usbtty="/dev/ttyUSB0"
;;
esac;
loginfo "usbtty = $usbtty"
TELIT_FLASH_TTY="$usbtty"
return 0
}
######################################################################################
# Flash telit device using uxfp utility.
# Logic ported from l4e1_flash.
# Globals:
# FW_IMAGE_PATH - read-only, path to the firmware image.
# TELIT_FLASH_TTY - read-only, TTY port for flashing Telit radios.
# UXFP_OPTIONS - read-only, options for uxfp flashing utility.
# Arguments:
# None
# Returns:
# 0 on success, 1 otherwise
######################################################################################
function telit_flash_uxfp() {
if ! select_telit_flash_tty; then
logerror "Flashing radio modem failed"
return 1
fi
# cycle power to get module into boot mode
# this needs to be run in the background so the flashing can start
# as soon as the module is in boot mode
loginfo "Resetting radio modem"
## INFO: -1: ignore backoff timers in radio-reset
echo -1 >/sys/devices/platform/mts-io/radio-reset &
# start flashing
loginfo "Starting flashing radio modem"
## INFO: We must catch up to the interface ttyUSBx (flashloader converter) before disconnected
local COUNTER=0
local MAX=120
while [ $COUNTER -lt $MAX ]; do
loginfo "Flash Attempt $COUNTER"
# Start uxfp and log to its output to syslog
if [ -c "$TELIT_FLASH_TTY" ] && uxfp --file "$FW_IMAGE_PATH" --port "$TELIT_FLASH_TTY" --debug; then
loginfo "Flashing radio modem successful, restarting telit module"
echo -1 >/sys/devices/platform/mts-io/radio-reset
loginfo "Done"
return 0
fi
COUNTER=$((COUNTER+1))
sleep 0.1
done
logerror "Flashing radio modem failed"
return 1
}
######################################################################################
# MAIN
######################################################################################
if ! parse_arguments "$@"; then
echo "I am here"
logerror "Usage: $0 <firmware_file>"
exitnow $ERROR_BAD_ARGS
fi
function do_upgrade() {
local _RET=1
telit_flash_uxfp >&2
_RET=$?
}
do_upgrade
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