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#!/bin/bash
###
# This script automate the setup of QMI supported wwan devices.
#
# Tested on following environment:
# * Lenovo ThinkPad X220 (4286-CTO)
# * Gentoo/Linux, Linux Kernel 3.9.6
# * NTT Docomo UIM card (Xi LTE SIM)
# * Sierra Wireless, Inc. Gobi 3000 wireless wan module
# (FRU 60Y3257, vendor and device id is 1199:9013)
# memo:
# I recommend to check if your wwan module works fine
# for your mobile broadband provider with Windows
# especially if you imported the device from other country.
# You may have to initialize your device for your region.
# * Required kernel config (other modules may be also required):
# - qmi_wwan (CONFIG_USB_NET_QMI_WWAN)
# - qcserial (CONFIG_USB_SERIAL_QUALCOMM)
# * Required settings:
# - you may have to create /etc/qmi-network.conf.
# My qmi-network.conf has only a line "APN=mopera.net".
#
# your wwan device name created by qmi_wwan kernel module
# check it with "ip a" or "ifconfig -a". it may be wwan0?
WWAN_DEV=wwp0s20f0u6
# your cdc_wdm modem location
CDC_WDM=/dev/cdc-wdm0
# this script uses following qmi commands
QMICLI=/usr/bin/qmicli
QMI_NETWORK=/usr/bin/qmi-network
# the places of following commands vary depending on your distribution
IFCONFIG=/usr/bin/ifconfig
DHCPCD=/usr/bin/dhcpcd
SUDO=/usr/bin/sudo
function helpmsg {
echo "usage: $0 {start|stop|restart|status}"
exit 1
}
function qmi_start {
$COMMAND_PREFIX $IFCONFIG $WWAN_DEV up
$COMMAND_PREFIX $QMICLI -d $CDC_WDM --dms-set-operating-mode=online
if [ $? -ne 0 ]; then
echo "your wwan device may be RFKilled?"
exit 1
fi
$COMMAND_PREFIX $QMI_NETWORK $CDC_WDM start
$COMMAND_PREFIX $DHCPCD $WWAN_DEV
}
function qmi_stop {
$COMMAND_PREFIX $QMI_NETWORK $CDC_WDM stop
$COMMAND_PREFIX kill `cat /var/run/dhcpcd-${WWAN_DEV}.pid`
$COMMAND_PREFIX $IFCONFIG $WWAN_DEV down
}
function qmi_strength {
dbm=`$COMMAND_PREFIX $QMICLI -d $CDC_WDM --nas-get-signal-strength | tr "'" " " | grep Network | head -1 | awk '{print $4}'`
echo -n "Signal strength is "
if [ $dbm -ge -73 ]; then
echo -n 'Excellent'
elif [ $dbm -ge -83 ]; then
echo -n 'Good'
elif [ $dbm -ge -93 ]; then
echo -n 'OK'
elif [ $dbm -ge -109 ]; then
echo -n 'Marginal'
else
echo Unknown
fi
echo " (${dbm} dBm)"
}
function qmi_status {
$COMMAND_PREFIX $QMI_NETWORK $CDC_WDM status
qmi_strength
}
# check argument number
if [ $# -ne 1 ]
then
helpmsg
fi
# check permission
if [ `whoami` != 'root' ]
then
echo "warning: root permission required. setting command prefix to 'sudo'."
COMMAND_PREFIX=$SUDO
fi
# run commands
case $1 in
start) qmi_start ;;
stop) qmi_stop ;;
restart) qmi_stop; qmi_start ;;
status) qmi_status ;;
*) helpmsg ;;
esac
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