#!/usr/bin/python
 # main.py
 # This file is part of Android ATMega8u2 Serial
 #
 # Copyright (C) 2011 - Manuel Di Cerbo, Nexus-Computing GmbH
 #
 # Android ATMega8u2 Serial is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
 # the Free Software Foundation; either version 2 of the License, or
 # (at your option) any later version.
 #
 # Android ATMega8u2 Serial is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
 # along with Android ATMega8u2 Serial; if not, write to the Free Software
 # Foundation, Inc., 51 Franklin St, Fifth Floor, 
 # Boston, MA  02110-1301  USA
 #
 
 # 
 # Thanks to the LUFA-lib project:
 # http://code.google.com/p/lufa-lib/
 # Thanks to the Arduino firmware project:
 # https://github.com/arduino/Arduino/tree/master/hardware/arduino/firmwares
 #
  
  

import usb
import thread

def setup():
	busses = usb.busses()
	handle = 0
	print "setting up"
	for bus in busses:
		devices = bus.devices
		for dev in devices:
			if dev.idVendor == 0x2341:
				handle = dev.open()
				handle.setConfiguration(dev.configurations[0])
				handle.claimInterface(dev.configurations[0].interfaces[1][0])
				
	handle.controlMsg(requestType = 0x21, request = 34, value = 0, index = 0, buffer = 0, timeout = 0) # SetControlLineState
	handle.controlMsg(requestType = 0x21, request = 32, value = 0, index = 0, buffer = [0x80, 0x25, 0x00, 0x00, 0x00, 0x00, 0x08], timeout = 0) # SetLineEncoding: 8N1, 9600 baud

	print "done"
	return handle
	
		
def sendCommand(handle):
	while True:
		msg = raw_input("enter command in hex (0xA4): ")
		try:
			num = int(msg, 16)
			print "sending "+hex(num)
			handle.bulkWrite(0x04, [num,],0)
		except Exception as inst:
			print inst
			print "cannot parse number"
		
if __name__=='__main__':
	handle = setup()
	sendCommand(handle)