#!/usr/bin/env python

import sys
import time
from rflib import *
from struct import *
import argparse
import pprint
import bitstring

baudRate = 650  #BAUD is 640-680ish
frequency = 467750000
deviation = 16000.0

def int2binstr8(__count):
    return "{:08b}".format(__count)

def makeManchester(__astr):
    astr = ''
    for x in __astr:
        if (x == '0'):
            astr += '01'
        else:
            astr += '10'
    return astr

def ConfigureD(d):
    d.setMdmModulation(MOD_2FSK)
    d.setFreq(frequency)
    d.setMdmDRate(baudRate)
    d.setMaxPower()
    d.setMdmSyncMode(0)
    d.setMdmDeviatn(deviation)

    print "[+] Radio Config:"
    print "    [+] ---------------------------------"
    print "    [+] MDMModulation: MOD_2FSK"
    print "    [+] Frequency: ",frequency
    print "    [+] Baud Rate:",baudRate
    print "    [+] ---------------------------------"

#------------------------------------------------------------
#RAW bitstream that we are sending
b1  = "10101010" #AA (same across 3 pager groups)
b2  = "10101010" #AA (same across 3 pager groups)
b3  = "10101010" #AA (same across 3 pager groups)
b4  = "11111100" #FC (same across 3 pager groups)
b5  = "00101101" #2D (same across 3 pager groups)
b6  = "00000101" #05 (different by pager group)
b7  = "00001000" #08 (same across 3 pager groups)
b8  = "00111001" #39 (pagerID)
b9  = "00000000" #00 (same across 3 pager groups)
b10 = "00000000" #00 (same across 3 pager groups)
b11 = "00000000" #00 (same across 3 pager groups)
b12 = "00000000" #00 (same across 3 pager groups)
b13 = "00000000" #00 (same across 3 pager groups)
b14 = "00000001" #01 (different by pager group)
crc = "01110001" #71 (crc)

#------------------------------------------------------------
d = RfCat()
ConfigureD(d)

packet = b1+b2+b3+b4+b5+b6+b7+b8+b9+b10+b11+b12+b13+b14

#Calculate the CRC
astr_b = bitstring.BitArray(bin=packet).tobytes()
crc = 0
for x in astr_b:
    crc += ord(x)
crc = crc % 255
print "CRC = " + hex(crc)

packet += int2binstr8(crc)
print packet + "\n"
mstr = makeManchester(packet)
mstr = mstr + "1" + mstr + "1" + mstr
print mstr + "\n"
bstr = bitstring.BitArray(bin=mstr).tobytes()
print bstr + "\n"

d.RFxmit(bstr)

d.cleanup()
sys.stdout.write("\n[+]Done.\n")