#!/usr/bin/env python
##################################################
# Gnuradio Python Flow Graph
# Title: Trial
# Generated: Sun Aug  4 14:41:03 2013
##################################################

from gnuradio import blocks
from gnuradio import digital
from gnuradio import eng_notation
from gnuradio import filter
from gnuradio import gr
from gnuradio.eng_option import eng_option
from gnuradio.filter import firdes
from gnuradio.gr import firdes
from grc_gnuradio import blks2 as grc_blks2
from grc_gnuradio import wxgui as grc_wxgui
from optparse import OptionParser
import numpy
import wx

class trial(grc_wxgui.top_block_gui):

	def __init__(self):
		grc_wxgui.top_block_gui.__init__(self, title="Trial")
		_icon_path = "/usr/share/icons/hicolor/32x32/apps/gnuradio-grc.png"
		self.SetIcon(wx.Icon(_icon_path, wx.BITMAP_TYPE_ANY))

		##################################################
		# Variables
		##################################################
		self.samp_rate = samp_rate = 32000

		##################################################
		# Blocks
		##################################################
		self.random_source_x_0 = gr.vector_source_i(map(int, numpy.random.randint(0, 2, 1000)), True)
		self.digital_ofdm_mod_0 = grc_blks2.packet_mod_f(digital.ofdm_mod(
				options=grc_blks2.options(
					modulation="bpsk",
					fft_length=512,
					occupied_tones=200,
					cp_length=128,
					pad_for_usrp=False,
					log=None,
					verbose=None,
				),
			),
			payload_length=20,
		)
		self.digital_ofdm_demod_0 = grc_blks2.packet_demod_f(digital.ofdm_demod(
				options=grc_blks2.options(
					modulation="bpsk",
					fft_length=512,
					occupied_tones=200,
					cp_length=128,
					snr=10,
					log=None,
					verbose=None,
				),
				callback=lambda ok, payload: self.digital_ofdm_demod_0.recv_pkt(ok, payload),
			),
		)
		self.channel_model_0 = filter.channel_model(
			noise_voltage=0.0,
			frequency_offset=0.0,
			epsilon=1.0,
			taps=(1.0 + 1.0j, ),
			noise_seed=0,
		)
		self.blocks_null_sink_0 = blocks.null_sink(gr.sizeof_float*1)

		##################################################
		# Connections
		##################################################
		self.connect((self.digital_ofdm_mod_0, 0), (self.channel_model_0, 0))
		self.connect((self.channel_model_0, 0), (self.digital_ofdm_demod_0, 0))
		self.connect((self.random_source_x_0, 0), (self.digital_ofdm_mod_0, 0))
		self.connect((self.digital_ofdm_demod_0, 0), (self.blocks_null_sink_0, 0))


	def get_samp_rate(self):
		return self.samp_rate

	def set_samp_rate(self, samp_rate):
		self.samp_rate = samp_rate

if __name__ == '__main__':
	parser = OptionParser(option_class=eng_option, usage="%prog: [options]")
	(options, args) = parser.parse_args()
	tb = trial()
	tb.Run(True)