msm-uim-init

#!/sbin/openrc-run

# This hacky script tries to automatically configure UIM application
# for Qualcomm QMI modems with two sim slots. See [1] for more.
# [1] https://wiki.postmarketos.org/wiki/User:TravMurav/Dual-Sim_QMI_draft
#
# Installation: 
# 
# sudo apk add libqmi
# wget https://gist.githubusercontent.com/TravMurav/90bdd89f492bc39004d8ffb3d722f771/raw/msm-uim-init
# chmod +x msm-uim-init
# sudo mv msm-uim-init /etc/init.d/
# sudo rc-update add msm-uim-init
# 
# See also:
# Service that configures SMS storage, may be needed to receive sms messages:
#   https://gist.github.com/JonnyMe/3503f89ebbd98288e4630d1682f6a1c5


depend() {
        before ofono
        before modemmanager
        # We don't want to block the ui or sshd for 10 seconds just 
        # because it wants to start last >:(
        need tinydm
        need sshd
}

start() {
        # Sometimes we need to select application on SIM

        if ! [ -x "$(command -v qmicli)" ]; then
          echo 'Error: qmicli is not installed.' >&2
          exit 1
        fi
        
        # FIXME: For some reason modem becoomes sad if the script
        # runs too early.
        sleep 10

        # FIXME: Yes, this command is invoked a lot of times
        QMI_CARDS="qmicli -d /dev/modem --uim-get-card-status"

        # No action needed if application is already selected
        # Or so I thought but some motorolla fw is very weird with this
        # So we will reset the application and select it again
        if ! [ "$($QMI_CARDS | grep -c "Primary GW:   session doesn't exist")" ]
        then
                echo 'Warning: Application was already selected.' >&2
                # exit 1
                qmicli -d /dev/modem --uim-change-provisioning-session='activate=no,session-type=primary-gw-provisioning'
        fi

        if ! [ "$($QMI_CARDS | grep -c "Card state: 'present'")" ]
        then
                echo 'Error: No sim present.' >&2
                exit 1
        fi

        FIRST_PRESENT_SLOT=$($QMI_CARDS | grep "Card state: 'present'" -m1 -B1 | head -n1 | cut -c7-7)
        FIRST_PRESENT_AID=$($QMI_CARDS | grep "usim (2)" -m1 -A3 | tail -n1 | awk '{print $1}')

        echo Selecting $FIRST_PRESENT_AID on slot $FIRST_PRESENT_SLOT

        qmicli -d /dev/modem --uim-change-provisioning-session="slot=$FIRST_PRESENT_SLOT,activate=yes,session-type=primary-gw-provisioning,aid=$FIRST_PRESENT_AID"

}