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#!/usr/bin/env sh
LOGDIR="$XDG_CONFIG_HOME"/sxmo/modem
trap "gracefulexit" INT TERM
fatalerr() {
# E.g. hangup all calls, switch back to default audio, notify user, and die
sxmo_vibratepine 1000 &
mmcli -m "$(mmcli -L | grep -oE 'Modem\/([0-9]+)' | cut -d'/' -f2)" --voice-hangup-all
alsactl --file /usr/share/sxmo/default_alsa_sound.conf restore
notify-send "$1"
setsid -f sh -c 'sleep 2; echo 1 > /tmp/sxmo_bar'
kill -9 0
}
gracefulexit() {
fatalerr "Terminated via SIGTERM/SIGINT"
}
modem_n() {
MODEMS="$(mmcli -L)"
echo "$MODEMS" | grep -qoE 'Modem\/([0-9]+)' || fatalerr "Couldn't find modem - is your modem enabled?"
echo "$MODEMS" | grep -oE 'Modem\/([0-9]+)' | cut -d'/' -f2
}
modem_cmd_errcheck() {
RES="$(mmcli "$@" 2>&1)"
OK="$?"
echo "Command: mmcli $*"
if [ "$OK" != 0 ]; then fatalerr "Problem executing mmcli command!\n$RES"; fi
echo "$RES"
}
vid_to_number() {
mmcli -m "$(modem_n)" -o "$1" -K |
grep call.properties.number |
cut -d ':' -f2 |
tr -d ' +'
}
log_event() {
EVT_HANDLE="$1"
EVT_VID="$2"
NUM="$(vid_to_number "$EVT_VID")"
TIME="$(date --iso-8601=seconds)"
mkdir -p "$LOGDIR"
printf %b "$TIME\t$EVT_HANDLE\t$NUM\n" >> "$LOGDIR/modemlog.tsv"
}
toggleflag() {
TOGGLEFLAG=$1
shift
FLAGS="$*"
echo -- "$FLAGS" | grep -- "$TOGGLEFLAG" >&2 &&
NEWFLAGS="$(echo -- "$FLAGS" | sed "s/$TOGGLEFLAG//g")" ||
NEWFLAGS="$(echo -- "$FLAGS $TOGGLEFLAG")"
NEWFLAGS="$(echo -- "$NEWFLAGS" | sed "s/--//g; s/ / /g")"
# shellcheck disable=SC2086
sxmo_megiaudioroute $NEWFLAGS
echo -- "$NEWFLAGS"
}
toggleflagset() {
FLAGS="$(toggleflag "$1" "$FLAGS")"
}
acceptcall() {
CALLID="$1"
echo "Attempting to initialize CALLID $CALLID"
DIRECTION="$(
mmcli --voice-status -o "$CALLID" -K |
grep call.properties.direction |
cut -d: -f2 |
tr -d " "
)"
if [ "$DIRECTION" = "outgoing" ]; then
modem_cmd_errcheck -m "$(modem_n)" -o "$CALLID" --start
log_event "call_start" "$CALLID"
elif [ "$DIRECTION" = "incoming" ]; then
modem_cmd_errcheck -m "$(modem_n)" -o "$CALLID" --accept
log_event "call_pickup" "$CALLID"
else
fatalerr "Couldn't initialize call with callid <$CALLID>; unknown direction <$DIRECTION>"
fi
}
hangup() {
CALLID="$1"
modem_cmd_errcheck -m "$(modem_n)" -o "$CALLID" --hangup
log_event "call_hangup" "$CALLID"
fatalerr "Call with $NUMBER terminated"
exit 1
}
togglewindowify() {
if [ "$WINDOWIFIED" = "0" ]; then
WINDOWIFIED=1
else
WINDOWIFIED=0
fi
}
incallsetup() {
DMENUIDX=0
CALLID="$1"
NUMBER="$(vid_to_number "$CALLID")"
WINDOWIFIED=0
# E.g. There's some bug with the modem that' requires us to toggle the
# DAI a few times before starting the call for it to kick in
FLAGS=" "
toggleflagset "-e"
toggleflagset "-m"
toggleflagset "-2"
toggleflagset "-2"
toggleflagset "-2"
}
incallmonitor() {
CALLID="$1"
while true; do
echo 1 > /tmp/sxmo_bar
if mmcli -m "$(modem_n)" -K -o "$CALLID" | grep -E "^call.properties.state.+terminated"; then
fatalerr "Call with $NUMBER terminated"
fi
echo "Call still in progress"
sleep 3
done
}
incallmenuloop() {
echo "Current flags are $FLAGS"
CHOICES="
$([ "$WINDOWIFIED" = 0 ] && echo Windowify || echo Unwindowify) ^ togglewindowify
$([ "$WINDOWIFIED" = 0 ] && echo 'Screenlock ^ togglewindowify; sxmo_screenlock &')
Volume ↑ ^ sxmo_vol.sh up
Volume ↓ ^ sxmo_vol.sh down
Earpiece $(echo -- "$FLAGS" | grep -q -- -e && echo) ^ toggleflagset -e
Mic $(echo -- "$FLAGS" | grep -q -- -m && echo) ^ toggleflagset -m
Linejack $(echo -- "$FLAGS" | grep -q -- -h && echo) ^ toggleflagset -h
Linemic $(echo -- "$FLAGS" | grep -q -- -l && echo) ^ toggleflagset -l
Speakerphone $(echo -- "$FLAGS" | grep -q -- -s && echo) ^ toggleflagset -s
Echomic $(echo -- "$FLAGS" | grep -q -- -z && echo) ^ toggleflagset -z
DTMF Tones ^ dtmfmenu $CALLID
Hangup ^ hangup $CALLID
"
echo "$CHOICES" |
xargs -0 echo |
cut -d'^' -f1 |
sed '/^[[:space:]]*$/d' |
awk '{$1=$1};1' |
dmenu -idx $DMENUIDX -l 14 "$([ "$WINDOWIFIED" = 0 ] && echo "-c" || echo "-wm")" -fn "Terminus-30" -p "$NUMBER" |
(
PICKED="$(cat)";
echo "Picked is $PICKED"
echo "$PICKED" | grep -Ev "."
CMD=$(echo "$CHOICES" | grep "$PICKED" | cut -d'^' -f2)
DMENUIDX=$(echo "$(echo "$CHOICES" | grep -n "$PICKED" | cut -d ':' -f1)" - 1 | bc)
echo "Eval in call context: $CMD"
eval "$CMD"
incallmenuloop
) & wait # E.g. bg & wait to allow for SIGINT propogation
}
dtmfmenu() {
CALLID="$1"
DTMFINDEX=0
NUMS="0123456789*#ABCD"
while true; do
PICKED="$(
echo "$NUMS" | grep -o . | sed '1 iReturn to Call Menu' |
dmenu "$([ "$WINDOWIFIED" = 0 ] && echo "-c" || echo "-wm")" -l 20 -fn Terminus-20 -c -idx $DTMFINDEX -p "DTMF Tone"
)"
echo "$PICKED" | grep "Return to Call Menu" && return
DTMFINDEX=$(echo "$NUMS" | grep -bo "$PICKED" | cut -d: -f1 | xargs -IN echo 2+N | bc)
modem_cmd_errcheck -m "$(modem_n)" -o "$CALLID" --send-dtmf="$PICKED"
done
}
pickup() {
acceptcall "$1"
incallsetup "$1"
incallmonitor "$1" &
incallmenuloop "$1"
}
modem_n || fatalerr "Couldn't determine modem number - is modem online?"
"$@"