#!/usr/bin/env bash

set -e

if [ $# -ne 1 ]; then
	echo 1>&2 "usage: $0 <FILE>"
	exit 2
fi

dev=$1

function send {
	screen -S buspirate -p 0 -X stuff $1
	# Send the Enter keystroke
	screen -S buspirate -p 0 -X stuff `echo -ne '\015'`
	sleep 0.1
}

echo -n "Initializing Bus Pirate on $dev..."
screen -dmS buspirate $dev 115200
send 'm3'  # UART mode
send '9'   # Serial port speed
send ''    # Data bits and parity
send ''    # Stop bits
send ''    # Receive polarity
send '2'   # Output type
send 'W'   # Power on
send '(1)' # Transparent bridge
send 'y'   # Confirm
echo " done."
echo "Run \`screen -x buspirate\` to attach to the created session."