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#!/bin/sh
LOCK=/var/lock/wifi_lock
WIFI_AP_CONFIG_FILE="/var/run/hostapd.conf"
WIFI_CLIENT_CONFIG_FILE="/var/run/wpa_supplicant.conf"
WIFI_LOG_FILE="/var/log/wpa_supplicant.log"
UDHCPC_WIFIUP_SCRIPT="/etc/udhcpc.d/wifiup"
FACTORY_NVS_PATH="/lib/firmware/ti-connectivity/wl1271-nvs.bin.factory"
NVS_PATH="/var/oem/mts/wl1271-nvs.bin"
if mkdir $LOCK; then
trap "rm -fr $LOCK" EXIT
else
echo "Wifi lock not acquired, resource in use" >&2
exit 1
fi
cnt=$(ps -A | grep 'wifi$' | wc -l)
function init() {
echo "initializing wifi chip"
# install factory nvs file if necessary
if [[ ! -f $NVS_PATH ]]; then
echo "$NVS_PATH not found, using factory default"
mount -o remount,rw /var/oem
mkdir -p /var/oem/mts
cp $FACTORY_NVS_PATH $NVS_PATH
mount -o remount,ro /var/oem
fi
# enable wifi chip
mts-io-sysfs store wlan-enabled 0
usleep 50000
mts-io-sysfs store wlan-enabled 1
sleep 1
# load atmel_mci module
lsmod | grep -q atmel_mci || {
modprobe atmel_mci && sleep 3
}
# led
## INFO: code from scripts/led_ni_setup
echo "netdev" > /sys/class/leds/led-b/trigger
echo "wlan0" > /sys/class/leds/led-b/device_name
echo "link tx rx" > /sys/class/leds/led-b/mode
}
function start() {
JSON=$(curl -m 5 -s 127.0.0.1/api?fields=wifi,lan,system/macAddress,system/mode)
: ${WIFI_AP_ENABLED:='false'}
: ${WIFI_AP_MAC:='0F:0A:0C:0E:05:01'}
: ${WIFI_CLIENT_ENABLED:='true'}
: ${WIFI_CLIENT_MODE:='WAN'}
: ${SYSTEM_MODE:='STATION'}
if [ "$SYSTEM_MODE" != "ROUTER" ]; then
echo "Can NOT configure WiFi Access Point or Client. System Mode: $SYSTEM_MODE"
exit 1
fi
if [ "$WIFI_AP_ENABLED" == "true" ] && [ "$WIFI_CLIENT_ENABLED" == "true" ]; then
echo "Can NOT enable both Wifi Access Point and Client at the same time"
exit 1
fi
if [ "$WIFI_AP_ENABLED" == "false" ] && [ "$WIFI_CLIENT_ENABLED" == "false" ]; then
echo "Wifi is disabled. Powering Down Wifi Chip"
stop
exit
fi
init
# Check to see if Wifi AP is enabled
# And that Wifi Client is not enabled
if [ "$WIFI_AP_ENABLED" == "true" ] && [ "$WIFI_CLIENT_ENABLED" == "false" ]; then
echo "WiFi AP enabled - Bringing up hostapd on wlan0"
# initialize hostapd config
wifi_ap_init
if [ -f $WIFI_AP_CONFIG_FILE ]; then
hostapd -B $WIFI_AP_CONFIG_FILE -P /var/run/hostapd_wlan0.pid
sleep 5
ip link set br0 address $WIFI_AP_MAC
else
echo "Error generating $WIFI_AP_CONFIG_FILE"
exit 1
fi
else
echo "WiFi AP is disabled"
fi
# Check to see if Wifi Client is enabled
# And that Wifi AP is not enabled
if [ "$WIFI_CLIENT_ENABLED" == "true" ] && [ "$WIFI_AP_ENABLED" == "false" ]; then
echo "WiFi Client enabled - Configuring wlan0"
# initialize wpasupplicant config
wifi_client_init
ifconfig wlan0 up
# Check to see if ap is designated
if [ -f $WIFI_CLIENT_CONFIG_FILE ]; then
echo "WiFi Client - Configuring wpa supplicant"
# syslog option is '-s', file option is '-f <path>'
wpa_supplicant -B -iwlan0 -Dnl80211 -c $WIFI_CLIENT_CONFIG_FILE -P /var/run/wpa_supplicant_wlan0.pid $ -s &
sleep 10
if [ "$WIFI_CLIENT_MODE" == "WAN" ]; then
echo "WiFi Client - Starting DHCP client"
udhcpc -i wlan0 -s $UDHCPC_WIFIUP_SCRIPT -p /var/run/udhcpc_wlan0.pid > /dev/null 2>&1 &
elif [ "$WIFI_CLIENT_MODE" == "LAN" ]; then
echo "WiFi Client - Adding to bridge"
brctl addif br0 wlan0
fi
sleep 2
fi
else
echo "WiFi client is disabled"
fi
}
function stop() {
echo -n "Shutting down wifi "
if [ -f /var/run/wpa_supplicant_wlan0.pid ]; then
PID=$(cat /var/run/wpa_supplicant_wlan0.pid)
kill $PID > /dev/null 2>&1
fi
if [ -f /var/run/udhcpc_wlan0.pid ]; then
PID=$(cat /var/run/udhcpc_wlan0.pid)
kill $PID > /dev/null 2>&1
fi
if [ -f /var/run/hostapd_wlan0.pid ]; then
PID=$(cat /var/run/hostapd_wlan0.pid)
kill $PID > /dev/null 2>&1
fi
modprobe -r wl12xx > /dev/null 2>&1
modprobe -r wlcore > /dev/null 2>&1
modprobe -r wlcore_sdio > /dev/null 2>&1
modprobe -r atmel_mci > /dev/null 2>&1
}
function scan() {
init
# Ensure WLAN is up
ifconfig wlan0 up
# Scan
iw wlan0 scan
}
case "$1" in
"start")
start
;;
"stop")
stop
;;
"restart")
## Stop the service and regardless of whether it was
## running or not, start it again.
echo "Restarting wifi"
stop
start
;;
"scan")
scan
;;
*)
## If no parameters are given, print which are avaiable.
echo "Usage: $0 {start|stop|scan|restart}"
exit 1
;;
esac
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