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ModemMonitor: Periodically check whether the modem is still alive, reset it if not

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Signed-off-by: Stacy Harper <contact@stacyharper.net>
This commit is contained in:
Maarten van Gompel 2021-07-25 14:26:40 +02:00 • committed by Stacy Harper
parent 13b29f7139
commit edc48a01d2
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GPG key ID: 5BAC92328B7C5D65
5 changed files with 59 additions and 1 deletions
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33
scripts/modem/sxmo_modemmonitor.sh
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@ -295,6 +295,10 @@ mainloop() {
elif echo "$newstate" | grep "int32 11"; then
echo connected > "$MODEMSTATEFILE"
#3G/2G/4G available
elif echo "$newstate" | grep "int32 -1"; then
echo failed > "$MODEMSTATEFILE"
elif echo "$newstate" | grep "int32 3"; then
echo disabled > "$MODEMSTATEFILE"
else
echo unknown > "$MODEMSTATEFILE"
fi
@ -302,6 +306,35 @@ mainloop() {
fi
done &
( #check whether the modem is still alive every minute, reset the modem if not
while :
do
sleep 60
TRIES=0
while [ "$TRIES" -lt 10 ]; do
MODEMS="$(mmcli -L)"
if echo "$MODEMS" | grep -oE 'Modem\/([0-9]+)' > /dev/null; then
break
elif grep -q rtc "$UNSUSPENDREASONFILE"; then
#don't bother checking in rtc-wake situations
TRIES=0
break
else
TRIES=$((TRIES+1))
echo "sxmo_modemmonitor: modem not found, waiting for modem... (try #$TRIES)">&2
sleep 2
if [ "$TRIES" -eq 10 ]; then
echo failed > "$MODEMSTATEFILE"
echo "sxmo_modemmonitor: forcing modem reset">&2
sxmo_modemmonitortoggle.sh reset #will kill the modemmonitor too
break
fi
fi
done
done
) &
wait
wait
wait
wait