import os
import mmap
import serial

inputMapping = 0
outputMapping = 0

inputFile = file ( "inputs.txt" , "r+" )
size = os.path.getsize ( "inputs.txt" )

outputFile = file ( "outputs.txt" , "r+" )
outSize = os.path.getsize ( "outputs.txt" )

data = mmap.mmap ( inputFile.fileno() , size )
outputData = mmap.mmap ( outputFile.fileno() , outSize )

port = serial.Serial ( "/dev/ttyUSB1" , 9600 , timeout=2 )
print port.portstr
port.write ( "!0:ReportInputs." )

char = None
serstring = ""

serstring = port.readline()
while 1:
   port.write ( "!0:ReportInputs." )
   serstring = port.readline()
   ports = serstring.split ( "," )

   PORTA = int ( ports [ 0 ] )
   PORTB = int ( ports [ 1 ] )
   PORTC = int ( ports [ 2 ] )
   PORTD = int ( ports [ 3 ] )

   i1 = 0
   i2 = 0
   i3 = 0
   i4 = 0

   for i in range ( 0 , 8 ):
      data [ i + 1 ] = str ( PORTA & 1 )
      data [ i + 9 ] = str ( PORTB & 1 )
      data [ i + 17 ] = str ( PORTC & 1 )
      data [ i + 25 ] = str ( PORTD & 1 )

      i1 += int ( outputData [ outputMapping + i + 1 ] ) * pow ( 2 , i );
      i2 += int ( outputData [ outputMapping + i + 9 ] ) * pow ( 2 , i );
      i3 += int ( outputData [ outputMapping + i + 17 ] ) * pow ( 2 , i );
      i4 += int ( outputData [ outputMapping + i + 25 ] ) * pow ( 2 , i );

      PORTA >>= 1
      PORTB >>= 1
      PORTC >>= 1
      PORTD >>= 1

   outstring = "!0:LEDs " + str ( i1 ) + "," + str ( i2 ) + "," + str ( i3 ) + "," + str ( i4 ) + "."
   print outstring
   port.write ( outstring )