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#!/bin/sh
## Copyright 2021 Nikita Travkin
## Copyright 2021 Caleb Connolly
## Copyright 2021 Minecrell
## Copyright 2022 Arnaud Ferraris <aferraris@debian.org>
##
## SPDX-License-Identifier: GPL-3.0-or-later
# Maximum time to wait for SIM card to appear after starting the modem.
# Some SIM cards or modem firmwares might take longer to initialize. :(
# To avoid blocking boot without a SIM card for too long this is fairly short
# by default (1 second), but you can increase it to e.g. 30 seconds if necessary.
# Set to 0 to disable waiting entirely.
sim_wait_time=1
case "$(cat /sys/devices/soc0/machine)" in
APQ*)
echo "I: Skipping SIM configuration on APQ SoC."
exit 0
esac
# libqmi must be present to use this script.
if ! command -v qmicli > /dev/null 2>&1; then
echo "E: qmicli is not installed."
exit 1
fi
# Prepare a qmicli command with desired modem path.
# The modem may appear after some delay, wait for it.
count=0
while [ -z "$QMICLI_MODEM" ] && [ $count -lt 45 ]
do
# Check if the qmi device from wwan driver exists.
if [ -e "/dev/wwan0qmi0" ]; then
# Using --device-open-qmi flag as we may have libqmi
# version that can't automatically detect the type yet.
QMICLI_MODEM="qmicli --silent -d /dev/wwan0qmi0 --device-open-qmi"
QMICLI_MODEM_GNSS=${QMICLI_MODEM}
echo "I: Using /dev/wwan0qmi0"
# Check if QRTR is available for new devices.
elif qmicli --silent -pd qrtr://0 --uim-noop > /dev/null 2>&1; then
QMICLI_MODEM="qmicli --silent -pd qrtr://0"
QMICLI_MODEM_GNSS="qmicli --silent -d qrtr://0"
echo "I: Using qrtr://0"
fi
sleep 1
count=$((count+1))
done
echo "I: Waited $count seconds for modem device to appear"
if [ -z "$QMICLI_MODEM" ]; then
echo "E: No modem available."
exit 2
fi
# Enable GNSS:
# Set the location engine lock to mt
$QMICLI_MODEM_GNSS --loc-set-engine-lock=mt
# Enable all NMEA traces
$QMICLI_MODEM_GNSS --loc-set-nmea-types=all
QMI_CARDS=$($QMICLI_MODEM --uim-get-card-status)
# Fail if all slots are empty but wait a bit for the sim to appear.
count=0
while ! echo "$QMI_CARDS" | grep -Fq "Card state: 'present'"; do
if [ $count -ge $sim_wait_time ]; then
echo "E: No sim detected after $sim_wait_time seconds."
exit 4
fi
sleep 1
count=$((count+1))
QMI_CARDS=$($QMICLI_MODEM --uim-get-card-status)
done
echo "I: Waited $count seconds for modem to come up"
# Clear the selected application in case the modem is in a bugged state
if ! echo "$QMI_CARDS" | grep -Fq "Primary GW: session doesn't exist"; then
echo "W: Application was already selected."
$QMICLI_MODEM --uim-change-provisioning-session='activate=no,session-type=primary-gw-provisioning' > /dev/null
fi
# Extract first available slot number and AID for usim application
# on it. This should select proper slot out of two if only one UIM is
# present or select the first one if both slots have UIM's in them.
FIRST_PRESENT_SLOT=$(echo "$QMI_CARDS" | grep "Card state: 'present'" -m1 -B1 | head -n1 | cut -c7-7)
FIRST_PRESENT_AID=$(echo "$QMI_CARDS" | grep "usim (2)" -m1 -A3 | tail -n1 | awk '{print $1}')
echo "I: Selecting $FIRST_PRESENT_AID on slot $FIRST_PRESENT_SLOT"
# Finally send the new configuration to the modem.
$QMICLI_MODEM --uim-change-provisioning-session="slot=$FIRST_PRESENT_SLOT,activate=yes,session-type=primary-gw-provisioning,aid=$FIRST_PRESENT_AID" > /dev/null
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