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/* -*- c++ -*- */
/*
* Copyright 2007,2008 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* GNU Radio 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 3, or (at your option)
* any later version.
*
* GNU Radio 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 this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef INCLUDED_USRP_RX_STUB_H
#define INCLUDED_USRP_RX_STUB_H
#include <mblock/mblock.h>
#include <vector>
#include "usrp_standard.h"
#include <ui_nco.h>
#include <fstream>
#include <queue>
#include <usrp_inband_usb_packet.h>
typedef usrp_inband_usb_packet transport_pkt;
extern bool usrp_rx_stop_stub; // used to communicate a 'stop' to the RX stub
extern std::queue<pmt_t> d_cs_queue;
static pmt_t s_timeout = pmt_intern("%timeout");
static pmt_t s_done = pmt_intern("done");
/*!
* \brief Implements the low level usb interface to the USRP
*/
class usrp_rx_stub : public mb_mblock
{
public:
mb_port_sptr d_cs;
usrp_standard_rx* d_urx;
long d_samples_per_frame;
long d_decim_rx;
mb_time d_t0;
double d_delta_t;
// for generating sine wave output
ui_nco<float,float> d_nco;
double d_amplitude;
bool d_disk_write;
std::ofstream d_ofile;
public:
usrp_rx_stub(mb_runtime *rt, const std::string &instance_name, pmt_t user_arg);
~usrp_rx_stub();
void initial_transition();
void handle_message(mb_message_sptr msg);
private:
void read_and_respond();
void read_data();
void start_packet_timer();
};
#endif /* INCLUDED_USRP_RX_H */
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