bthci.sh

#!/bin/bash
if [ "$1" != "" ]; then
  ipaddress=$1;
  echo -e "Bluetooth HCI logging on STB $ipaddress ...  \n"

  # cleanup
  rm bluetooth_manager_*
  rm bluetooth_hci_*

  adb connect $ipaddress

  echo -e "Rebooting STB ...  \n"
  adb -s $ipaddress:5555 reboot

  t0=$(date +%s)
  adb -s $ipaddress:5555 shell dumpsys bluetooth_manager | tee ./bluetooth_manager_reboot_$t0.dump

  read -p "Press Y when STB rebooted ... " -n 1 -r
  echo    # (optional) move to a new line
  if [[ ! $REPLY =~ ^[Yy]$ ]]
  then
      exit 1
  else
    adb connect $ipaddress
    adb -s $ipaddress:5555 root
    adb connect $ipaddress

    # delete any existing HCI log
    adb -s $ipaddress:5555 shell rm /sdcard/btsnoop_hci.log

    adb -s $ipaddress:5555 shell settings put global development_settings_enabled 1
    adb -s $ipaddress:5555 shell settings put secure bluetooth_hci_log 1

    # disable BT
    adb -s $ipaddress:5555 shell service call bluetooth_manager 8

    # enable BT
    adb -s $ipaddress:5555 shell service call bluetooth_manager 6

    # NOTE: turning BT off and odd since bluetooth HCI logging does not take effect with rebobots

    echo -e "Bluetooth is re-enabled on STB. \n"
    echo -e "HCI log file is now being generated and is saved to /sdcard/btsnoop_hci.log. \n\n"

    t1=$(date +%s)
    adb -s $ipaddress:5555 shell dumpsys bluetooth_manager | tee ./bluetooth_manager_hci_$t1.dump

    date

    # reboot
    # according to article rebbot should be done after turning on bluetooth_hci_log 1
    # NOTE: not rebooting as it appears reboot clears settings and no btsnoop_hci.log is created in case of reboot
    # adb -s $ipaddress:5555 reboot


    read -p "\n\nPress Y when RCU is connected with Green LED flashing ... " -n 1 -r
    echo    # (optional) move to a new line
    if [[ ! $REPLY =~ ^[Yy]$ ]]
    then
        exit 1
    fi

    echo -e "RCU in bluetooth mode. \n\n"
    date


    t2=$(date +%s)

    adb -s $ipaddress:5555 shell dumpsys bluetooth_manager | tee ./bluetooth_manager_end_$t2.dump

    adb pull /sdcard/btsnoop_hci.log bluetooth_hci_$t2.log

  fi
else
  echo -e "Missing IP address of Android STB.";
fi