#!/bin/sh
PATH=/bin:/usr/bin:/sbin:/usr/sbin

#
# Script for registering Marvell SDIO BT device
#

PARAM_BDADDR=/sys/module/bt8xxx/parameters/bt_mac

# Please fill the location fo bdaddr file
BT_MAC_FILE=/opt/etc/.bd_addr

GEN_BDADDR(){
        echo "BT Mac addr generates randomly."
        MAC_PRE=$(echo "00:50:43:")
        MAC_POST=$(openssl rand -hex 3 | sed 's/\(..\)/\1:/g; s/.$//')
        echo "Random : $MAC_PRE$MAC_POST"
        bt_mac=$MAC_PRE$MAC_POST
}

# Take MAC ADDRESS from NAND storage. If not present generate randomly.
if [ -e ${BT_MAC_FILE} ] > /dev/null 2>&1;
then
        bt_mac=$(cat ${BT_MAC_FILE})

        if [ ${#bt_mac} == 17 ]; then
                echo "bt_mac addr exists in ${BT_MAC_FILE} : ${bt_mac}"
        else
                echo "bt_mac addr is not proper in ${BT_MAC_FILE} : ${bt_mac}"
                GEN_BDADDR
        fi
else
        GEN_BDADDR
        echo $bt_mac > ${BT_MAC_FILE}
fi

# Set MAC ADDRESS to module parameters
echo $bt_mac > ${PARAM_BDADDR}