#!/bin/sh

set_config() {
cat << EOF > /tmp/wpa_supplicant.conf
network={
	mode=2
	frequency=$(fw_printenv -n wlanfreq || echo 5200)
	ssid="$(fw_printenv -n wlanssid || echo OpenIPC)"
	psk="$(fw_printenv -n wlanpass || echo 12345678)"
}
EOF
}

case "$1" in
	setup)
		for card in $(lsusb | awk '{print $6}' | uniq); do
			case "$card" in
				"0bda:8812" | "0bda:881a" | "0b05:17d2" | "2357:0101" | "2604:0012")
					driver=8812au
					;;

				"0bda:a81a")
					driver=8812eu
					;;

				"0bda:f72b" | "0bda:b733")
					driver=8733bu
					;;
			esac
		done

		if [ -z "$driver" ]; then
			echo "Wireless module not detected!"
			exit 1
		fi

		echo "Detected driver: $driver"
		modprobe "$driver" rtw_tx_pwr_by_rate=0 rtw_tx_pwr_lmt_enable=0
		;;

	start)
		iw wlan0 set txpower fixed $(fw_printenv -n wlanpwr || echo 1500)
		set_config
		wpa_supplicant -B -i wlan0 -c /tmp/wpa_supplicant.conf
		udhcpd -S
		;;

	stop)
		killall -q udhcpd wpa_supplicant
		;;

	*)
		echo "Usage: $0 {setup|start|stop}"
		exit 1
		;;
esac