# main.py
 # This file is part of Android FTDI Serial
 #
 # Copyright (C) 2011 - Manuel Di Cerbo, Nexus-Computing GmbH
 #
 # Android FTDI 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 FTDI 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 FTDI Serial; if not, write to the Free Software
 # Foundation, Inc., 51 Franklin St, Fifth Floor, 
 # Boston, MA  02110-1301  USA
 #
 
  # 
  # Thanks to the libftdi project http://www.intra2net.com/en/developer/libftdi/
  #
  
  
#! /usr/bin/env python
import usb
import thread

def setup():
	busses = usb.busses()
	handle = 0
	for bus in busses:
		devices = bus.devices
		for dev in devices:
			if dev.idVendor == 0x0403:
				handle = dev.open()
				handle.setConfiguration(dev.configurations[0])
				handle.claimInterface(dev.configurations[0].interfaces[0][0])
				
	
	handle.controlMsg(requestType = 0x40, request = 0, value = 0, index = 0, buffer = 0, timeout = 0)#reset
	handle.controlMsg(requestType = 0x40, request = 0, value = 1, index = 0, buffer = 0, timeout = 0)#reset
	handle.controlMsg(requestType = 0x40, request = 0, value = 2, index = 0, buffer = 0, timeout = 0)#reset
	handle.controlMsg(requestType = 0x40, request = 0x03, value = 0x4138, index = 0, buffer = 0, timeout = 0)#9600 baudrate
	return handle
	
def echo(handle):
	handle.bulkWrite(0x02, "",0)#somehow the first bytes are not returned
	thread.start_new_thread(readLoop, (handle,))
	while True:
		msg = raw_input("send command: ")
		handle.bulkWrite(0x02, msg,0)

			
def readLoop(handle):
	while True:
		data = handle.bulkRead(0x81, 64,0)
		if len(data) > 2:
			print ""
			print 'out: ' + ''.join([chr(c) for c in data])[2:len(data)]
			print ""
			
def sendCommand(handle):
	while True:
		msg = raw_input("enter command in hex (0xA4): ")
		try:
			num = int(msg, 16)
			print "sending "+hex(num)
			handle.bulkWrite(0x02, [num,],0)
		except:
			print "cannot parse number"
		
if __name__=='__main__':
	handle = setup()
	sendCommand(handle)
#	echo(handle)