scripts/bt-dev-start-rpi3.sh

   1 #!/bin/sh
   2 PATH=/bin:/usr/bin:/sbin:/usr/sbin
   3
   4 # Script for registering Broadcom UART BT device
   5 BT_UART_DEVICE=/dev/ttyAMA0
   6 BT_CHIP_TYPE=bcm43xx
   7 BT_MAC_FILE=/opt/etc/.bd_addr
   8
   9 BT_PLATFORM_DEFAULT_HCI_NAME="TIZEN-Mobile"
  10
  11 HCI_CONFIG=/usr/bin/hciconfig
  12 HCI_ATTACH=/usr/bin/hciattach
  13
  14 if [ ! -e "$BT_UART_DEVICE" ]
  15 then
  16         mknod $BT_UART_DEVICE c 204 64
  17 fi
  18
  19 GEN_BDADDR(){
  20         #echo "BT Mac addr generates randomly."
  21         #MAC_PRE=$(echo "00:02:")
  22         #MAC_POST=$(/usr/bin/openssl rand -hex 4 | sed 's/\(..\)/\1:/g; s/.$//')
  23         #BT_MAC=$MAC_PRE$MAC_POST
  24         echo "Generates BT MAC address based on serial number."
  25         SERIAL=`cat /proc/device-tree/serial-number | cut -c9-`
  26         B1=`echo $SERIAL | cut -c3-4`
  27         B2=`echo $SERIAL | cut -c5-6`
  28         B3=`echo $SERIAL | cut -c7-8`
  29         BT_MAC=`printf b8:27:eb:%02x:%02x:%02x $((0x$B1 ^ 0xaa)) $((0x$B2 ^ 0xaa)) $((0x$B3 ^ 0xaa))`
  30 }
  31
  32 PIVERSION=`cat /proc/device-tree/model | awk '{print $3}'`
  33 PIMODEL=`cat /proc/device-tree/model | awk '{print $5}'`
  34 echo "$PIVERSION $PIMODEL"
  35
  36 if [ "$PIVERSIOM" = "3" ] && [ "$PIMODEL" = "B" ]
  37 then
  38         echo "RPI3 B model"
  39         FLOW_CONTROL=noflow
  40         UART_SPEED=460800
  41 else
  42         echo "RPI3 B+ or RPI4 model"
  43         FLOW_CONTROL=flow
  44         UART_SPEED=2000000
  45
  46 fi
  47
  48 if [ ! -e "$BT_MAC_FILE" ]
  49 then
  50         # Set BT address
  51         GEN_BDADDR
  52         echo $BT_MAC > ${BT_MAC_FILE}
  53 else
  54         BT_MAC=$(cat ${BT_MAC_FILE})
  55 fi
  56
  57 echo $BT_MAC
  58
  59 echo "Check for Bluetooth device status"
  60 if ($HCI_CONFIG | grep hci); then
  61         echo "Bluetooth device is UP"
  62         $HCI_CONFIG hci0 up
  63 else
  64         echo "Bluetooth device is DOWN"
  65         echo "Registering Bluetooth device"
  66
  67         # Attaching Broadcom device
  68         flag=0
  69         for ((i=0; i<2; i++))
  70         do
  71                 if ($HCI_ATTACH $BT_UART_DEVICE $BT_CHIP_TYPE $UART_SPEED $FLOW_CONTROL nosleep $BT_MAC -t 5); then
  72                         sleep 0.1
  73                         $HCI_CONFIG hci0 up
  74                         echo "HCIATTACH success"
  75                         flag=1
  76                         break
  77                 fi
  78         done
  79
  80         if [ $flag -eq 0 ]
  81         then
  82                 echo "HCIATTACH failed"
  83         fi
  84 fi