#!/bin/bash
# NANOPI NEO PLUS2 BLUETOOTH HELPER SCRIPT

CHIP="ap6212"
UART_DEV="ttyS3"
INDEX=`rfkill list | grep "sunxi-bt" | cut -f 1 -d":"`

reset (){
BTWAKE="/proc/bluetooth/sleep/btwake"
if [[ -f "${BTWAKE}" ]]; then
	echo "0" > ${BTWAKE}
fi
INDEX=`rfkill list | grep $1 | cut -f 1 -d":"`
if [[ -n ${INDEX} ]]; then
	rfkill block ${INDEX}
	sleep 1
	rfkill unblock ${INDEX}
	sleep 1
fi
}

start (){
sleep 2.75
rm -rf /var/log/brcm
BRCM_TRY_LOG="/var/log/brcm/brcm_try.log"
BRCM_LOG="/var/log/brcm/brcm.log"
BRCM_ERR_LOG="/var/log/brcm/brcm_err.log"
[[ -d "/var/log/brcm" ]] || mkdir -p "/var/log/brcm"

if [[ -d "/sys/class/rfkill/rfkill${INDEX}" ]]; then
	reset "sunxi-bt"
	chmod 0660 /sys/class/rfkill/rfkill${INDEX}/state
	chmod 0660 /sys/class/rfkill/rfkill${INDEX}/type
	chgrp dialout /sys/class/rfkill/rfkill${INDEX}/state
	chgrp dialout /sys/class/rfkill/rfkill${INDEX}/type

	if [[ -f "/sys/bus/nvmem/devices/sunxi-sid0/nvmem" ]]; then
		MACADDR=`md5sum /sys/bus/nvmem/devices/sunxi-sid0/nvmem | cut -b 1-12 | sed -r ':1;s/(.*[^:])([^:]{2})/\1:\2/;t1'`
	else
		MACADDR=$(echo $FQDN|md5sum|sed 's/^\(..\)\(..\)\(..\)\(..\)\(..\).*$/02:\1:\2:\3:\4:\5/')
	fi
	echo ${MACADDR} > /tmp/bt_macaddress

	let TIMEOUT=90
	while [ ${TIMEOUT} -gt 0 ]; do
		killall -9 /bin/brcm_patchram_plus
		/bin/brcm_patchram_plus -d --patchram /lib/firmware/${CHIP}/bcm43438a1.hcd --enable_hci --bd_addr ${MACADDR} --no2bytes --tosleep 5000 /dev/${UART_DEV} >${BRCM_LOG} 2>&1 &
		sleep 30
		CUR_TIME=`date "+%H-%M-%S"`
		if [[ `grep "Done setting line discpline" "${BRCM_LOG}"` ]]; then
			echo "${CUR_TIME}: bt firmware download ok($((TIMEOUT/30)))" >> ${BRCM_TRY_LOG}
			if [[ ! `grep "fail" "${BRCM_TRY_LOG}"` ]]; then
				reset "hci0"
				hciconfig hci0 down
				sleep .50
				hciconfig hci0 up
				hciconfig >> ${BRCM_TRY_LOG}
			fi
				break
		else
			echo "${CUR_TIME}: bt firmware download fail($((TIMEOUT/30)))" >> ${BRCM_TRY_LOG}
			cp ${BRCM_LOG} ${BRCM_ERR_LOG}
			reset
		fi
		TIMEOUT=$((TIMEOUT-30))
	done
fi
}

stop (){
kill `ps --no-headers -C brcm_patchram_plus -o pid`
}

if [ $# -eq 0 ]; then
	>&2 echo -e "Arguments: start stop"
	exit 1
fi
case $1 in
	start|stop)
	;;
	*)
	echo -e "Arguments: start stop" >&2
	exit 1
esac

BTHELPER=`echo $1`
$BTHELPER

exit 0