#!/usr/bin/python2
#
# This is a simple serial programmer for the 818 VHF/UHF modules.
#    by w0anm
# This code was created from examples on the web.
#
# $Id: 818-prog 12 2014-12-27 18:27:47Z w0anm $

import time
import serial

# configure the serial connections (the parameters differs on the device 
# you are connecting to)
ser = serial.Serial(
    port='/dev/ttyS2',
    baudrate=9600,
    parity=serial.PARITY_NONE,
    stopbits=serial.STOPBITS_ONE,
    bytesize=serial.EIGHTBITS
)

# ser.open()
ser.isOpen()
print '\r\n\n'
print 'Programing DRA818x and SA818x Module \r\n\n'
print 'Device name:'
print '      ' + ser.portstr       # check which port was really used

key=1
while key == 1:
    print '------------------------------------------------------'
    Spacing=raw_input('Enter Channel Spacing (0 or 1): ')
    FreqTx=raw_input('Enter Tx Frequency (xxx.xxxx): ')
    FreqRx=raw_input('Enter Rx Frequency (xxx.xxxx): ')
    tx_ctcss=raw_input('Enter Tx ctcss Code Value (xxxx): ')
    rx_ctcss=raw_input('Enter Rx ctcss Code Value (xxxx): ')
    squelch=raw_input ('Enter Squelch Value (1-9): ')
    Volume=raw_input('Enter Volume (0-8): ')
    PreEmphasis=raw_input('Enable Pre/De-Emphasis (y/[n]): ')
    if PreEmphasis == "":
        PreEmphasis="n"

    HighPass=raw_input('Enable High Pass Filter (y/[n]): ')
    if HighPass == "":
        HighPass="n"

    LowPass=raw_input('Enable Low Pass Filter (y/[n]): ')
    if LowPass == "":
        LowPass="n"

    #
    print ''
    print 'Verify:'
    print '------------------------------------------------------'
    print '     Channel Spacing: ' + Spacing + ' '
    print '        Tx Frequency: ' + FreqTx + ' '
    print '        Rx Frequency: ' + FreqRx + ' '
    print '       Tx CTCSS code: ' + tx_ctcss + ' '
    print '       Rx CTCSS code: ' + rx_ctcss + ' '
    print '       Squelch Value: ' + squelch + ' '
    print '        Volume Value: ' + Volume + ' '
    print ' PreEmphasis Enabled: ' + PreEmphasis + ' '
    print '   High Pass Enabled: ' + HighPass + ' '
    print '    Low Pass Enabled: ' + LowPass + ' '

    print '------------------------------------------------------'
    Answer=""
    Answer=raw_input(' Is this correct ([y]/n, or a to abort) ?')
    if Answer == "":
          Answer = "y"

    if Answer == "y":
          break

    if Answer == "a":
          exit()
 

# print 'Enter your commands below.\r\nInsert "exit" to leave the application.'

# Example of the command:
#     ser.write("AT+DMOSETGROUP=1,446.0500,446.0500,0020,4,0020\r\n")

# Set Freq/Group
print 'Sending Freq Information...'
ser.write("AT+DMOSETGROUP=" + Spacing + "," + FreqTx + "," + FreqRx + "," + tx_ctcss + "," + squelch + "," + rx_ctcss + "\r\n")
time.sleep(1.00)

#evaluate response
raw_serial = ser.readline()
response = raw_serial[:-2]

# Bad response --> +DMOSETGROUP:1
if response == '+DMOSETGROUP:1':
    print "    Error, invalid information (" + response + "). Check input format.."
    print " Command Sent:"
    print "        AT+DMOSETGROUP=1," + FreqTx + "," + FreqRx + "," + tx_ctcss + "," + squelch + "," + rx_ctcss + "\r\n"
    exit()

# Set Volume
print "Setting Volume - " + Volume + " " 
ser.write("AT+DMOSETVOLUME=" + Volume + "\r\n")
time.sleep(1.00)

#evaluate response
raw_serial = ser.readline()
response = raw_serial[:-2]

# Bad response --> +DMOSETVOLUME:1
if response == '+DMOSETVOLUME:1':
    print "    Error, invalid information (" + response + ")..."
    print " Command Sent:"
    print "    AT+DMOSETVOLUME=" + Volume + "\r\n"
    exit()

# Set Filters:
# convert filters values, 0 is enable, and 1 is disable
if PreEmphasis == "n":
    PreEmpFilter='1'
else:
    PreEmpFilter='0'

if HighPass == "n":
    HPass='1'
else:
    HPass='0'

if LowPass == "n":
    LPass='1'
else:
    LPass='0'

print 'Setting Filters'
ser.write("AT+SETFILTER=" + PreEmpFilter + "," + HPass + "," + LPass + "\r\n")
time.sleep(1.00)

#evaluate response
raw_serial = ser.readline()
response = raw_serial[:-2]

# Bad response --> +DMOSETFILTER:1
if response == '+DMOSETFILTER:1':
    print "    Error, invalid information (" + response + ")..."
    print " Command Sent:"
    print "    AT+SETFILTER=" + PreEmpFilter + "," + HPass + "," + LPass + "\r\n"
    exit()