mirror of https://gerrit.osmocom.org/libusrp
507 lines
12 KiB
C++
507 lines
12 KiB
C++
/* -*- c++ -*- */
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/*
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* Copyright 2007,2008 Free Software Foundation, Inc.
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*
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* This file is part of GNU Radio
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*
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* GNU Radio is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3, or (at your option)
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* any later version.
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*
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* GNU Radio is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <mblock/mblock.h>
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#include <mblock/runtime.h>
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#include <mblock/protocol_class.h>
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#include <mblock/exception.h>
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#include <mblock/msg_queue.h>
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#include <mblock/message.h>
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#include <mblock/msg_accepter.h>
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#include <mblock/class_registry.h>
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#include <pmt.h>
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#include <stdio.h>
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#include <string.h>
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#include <sys/time.h>
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#include <iostream>
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#include <ui_nco.h>
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#include <symbols_usrp_server_cs.h>
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#include <symbols_usrp_channel.h>
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#include <symbols_usrp_low_level_cs.h>
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#include <symbols_usrp_tx.h>
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#include <symbols_usrp_rx.h>
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#define NBPING 10
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static bool verbose = true;
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bool bskip = false;
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long bstep = 10000;
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long bcurr = 0;
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long incr = 0x500;
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long ptime = 0x000;
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class test_usrp_inband_timestamps : public mb_mblock
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{
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mb_port_sptr d_tx;
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mb_port_sptr d_rx;
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mb_port_sptr d_cs;
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pmt_t d_tx_chan; // returned tx channel handle
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pmt_t d_rx_chan; // returned tx channel handle
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struct timeval times[NBPING];
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enum state_t {
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INIT,
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OPENING_USRP,
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ALLOCATING_CHANNEL,
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TRANSMITTING,
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CLOSING_CHANNEL,
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CLOSING_USRP,
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};
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state_t d_state;
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long d_nsamples_to_send;
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long d_nsamples_xmitted;
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long d_nframes_xmitted;
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long d_samples_per_frame;
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bool d_done_sending;
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// for generating sine wave output
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ui_nco<float,float> d_nco;
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double d_amplitude;
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public:
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test_usrp_inband_timestamps(mb_runtime *runtime, const std::string &instance_name, pmt_t user_arg);
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~test_usrp_inband_timestamps();
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void initial_transition();
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void handle_message(mb_message_sptr msg);
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protected:
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void open_usrp();
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void close_usrp();
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void allocate_channel();
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void send_packets();
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void enter_receiving();
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void enter_transmitting();
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void build_and_send_ping();
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void build_and_send_next_frame();
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void handle_xmit_response(pmt_t invocation_handle);
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void enter_closing_channel();
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};
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test_usrp_inband_timestamps::test_usrp_inband_timestamps(mb_runtime *runtime, const std::string &instance_name, pmt_t user_arg)
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: mb_mblock(runtime, instance_name, user_arg),
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d_tx_chan(PMT_NIL),
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d_rx_chan(PMT_NIL),
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d_state(INIT), d_nsamples_to_send((long) 40e6),
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d_nsamples_xmitted(0),
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d_nframes_xmitted(0),
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//d_samples_per_frame((long)(126)),
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d_samples_per_frame((long)(126 * 2)), // non-full packet
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//d_samples_per_frame((long)(126 * 3.5)), // non-full packet
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//d_samples_per_frame((long)(126 * 4)), // full packet
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d_done_sending(false),
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d_amplitude(16384)
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{
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if(verbose)
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std::cout << "[TEST_USRP_INBAND_TIMESTAMPS] Initializing...\n";
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d_tx = define_port("tx0", "usrp-tx", false, mb_port::INTERNAL);
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d_rx = define_port("rx0", "usrp-rx", false, mb_port::INTERNAL);
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d_cs = define_port("cs", "usrp-server-cs", false, mb_port::INTERNAL);
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bool fake_usrp_p = false;
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// Test the TX side
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pmt_t usrp_dict = pmt_make_dict();
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if(fake_usrp_p) {
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pmt_dict_set(usrp_dict,
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pmt_intern("fake-usrp"),
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PMT_T);
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}
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// Set TX and RX interpolations
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pmt_dict_set(usrp_dict,
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pmt_intern("interp-tx"),
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pmt_from_long(128));
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pmt_dict_set(usrp_dict,
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pmt_intern("decim-rx"),
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pmt_from_long(16));
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// Specify the RBF to use
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pmt_dict_set(usrp_dict,
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pmt_intern("rbf"),
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pmt_intern("inband_1rxhb_1tx.rbf"));
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define_component("server", "usrp_server", usrp_dict);
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connect("self", "tx0", "server", "tx0");
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connect("self", "rx0", "server", "rx0");
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connect("self", "cs", "server", "cs");
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// initialize NCO
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double freq = 100e3;
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int interp = 32; // 32 -> 4MS/s
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double sample_rate = 128e6 / interp;
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d_nco.set_freq(2*M_PI * freq/sample_rate);
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}
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test_usrp_inband_timestamps::~test_usrp_inband_timestamps()
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{
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}
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void
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test_usrp_inband_timestamps::initial_transition()
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{
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open_usrp();
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}
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void
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test_usrp_inband_timestamps::handle_message(mb_message_sptr msg)
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{
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pmt_t event = msg->signal();
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pmt_t data = msg->data();
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pmt_t port_id = msg->port_id();
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pmt_t handle = PMT_F;
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pmt_t status = PMT_F;
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std::string error_msg;
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//std::cout << msg << std::endl;
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switch(d_state){
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case OPENING_USRP:
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if (pmt_eq(event, s_response_open)){
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status = pmt_nth(1, data);
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if (pmt_eq(status, PMT_T)){
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allocate_channel();
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return;
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}
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else {
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error_msg = "failed to open usrp:";
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goto bail;
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}
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}
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goto unhandled;
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case ALLOCATING_CHANNEL:
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if (pmt_eq(event, s_response_allocate_channel)){
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if(pmt_eq(d_tx->port_symbol(), port_id)) {
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status = pmt_nth(1, data);
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d_tx_chan = pmt_nth(2, data);
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if (pmt_eq(status, PMT_T)){
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if(verbose)
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std::cout << "[TEST_USRP_INBAND_TIMESTAMPS] Received allocation for TX\n";
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if(!pmt_eqv(d_rx_chan, PMT_NIL)) {
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enter_receiving();
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enter_transmitting();
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}
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return;
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}
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else {
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error_msg = "failed to allocate channel:";
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goto bail;
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}
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}
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if(pmt_eq(d_rx->port_symbol(), port_id)) {
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status = pmt_nth(1, data);
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d_rx_chan = pmt_nth(2, data);
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if (pmt_eq(status, PMT_T)){
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if(verbose)
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std::cout << "[TEST_USRP_INBAND_TIMESTAMPS] Received allocation for TX\n";
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if(!pmt_eqv(d_tx_chan, PMT_NIL)) {
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enter_receiving();
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enter_transmitting();
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}
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return;
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}
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else {
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error_msg = "failed to allocate channel:";
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goto bail;
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}
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}
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}
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goto unhandled;
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case TRANSMITTING:
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if (pmt_eq(event, s_response_xmit_raw_frame)){
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handle = pmt_nth(0, data);
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status = pmt_nth(1, data);
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if (pmt_eq(status, PMT_T)){
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handle_xmit_response(handle);
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return;
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}
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else {
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error_msg = "bad response-xmit-raw-frame:";
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goto bail;
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}
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}
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if (pmt_eq(event, s_response_from_control_channel)) {
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std::cout << "ping response!\n";
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}
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goto unhandled;
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case CLOSING_CHANNEL:
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if (pmt_eq(event, s_response_deallocate_channel)){
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status = pmt_nth(1, data);
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if (pmt_eq(status, PMT_T)){
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close_usrp();
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return;
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}
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else {
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error_msg = "failed to deallocate channel:";
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goto bail;
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}
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}
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goto unhandled;
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case CLOSING_USRP:
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if (pmt_eq(event, s_response_close)){
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status = pmt_nth(1, data);
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if (pmt_eq(status, PMT_T)){
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shutdown_all(PMT_T);
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return;
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}
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else {
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error_msg = "failed to close USRP:";
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goto bail;
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}
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}
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goto unhandled;
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default:
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goto unhandled;
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}
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return;
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bail:
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std::cerr << error_msg << data
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<< "status = " << status << std::endl;
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shutdown_all(PMT_F);
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return;
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unhandled:
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if(verbose && 0)
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std::cout << "test_usrp_inband_tx: unhandled msg: " << msg
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<< "in state "<< d_state << std::endl;
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}
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void
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test_usrp_inband_timestamps::open_usrp()
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{
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pmt_t which_usrp = pmt_from_long(0);
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d_cs->send(s_cmd_open, pmt_list2(PMT_NIL, which_usrp));
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d_state = OPENING_USRP;
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}
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void
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test_usrp_inband_timestamps::close_usrp()
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{
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d_cs->send(s_cmd_close, pmt_list1(PMT_NIL));
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d_state = CLOSING_USRP;
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if(verbose)
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std::cout << "[TEST_USRP_INBAND_TIMESTAMPS] Closing USRP\n";
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}
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void
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test_usrp_inband_timestamps::allocate_channel()
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{
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long capacity = (long) 16e6;
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d_tx->send(s_cmd_allocate_channel, pmt_list2(PMT_T, pmt_from_long(capacity)));
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d_rx->send(s_cmd_allocate_channel, pmt_list2(PMT_T, pmt_from_long(capacity)));
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d_state = ALLOCATING_CHANNEL;
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}
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void
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test_usrp_inband_timestamps::enter_receiving()
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{
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d_rx->send(s_cmd_start_recv_raw_samples,
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pmt_list2(PMT_F,
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d_rx_chan));
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}
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void
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test_usrp_inband_timestamps::enter_transmitting()
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{
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d_state = TRANSMITTING;
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d_nsamples_xmitted = 0;
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if(verbose)
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std::cout << "[TEST_USRP_INBAND_TIMESTAMPS] Beginning transmission\n";
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sleep(1);
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build_and_send_next_frame();
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build_and_send_next_frame();
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build_and_send_next_frame();
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build_and_send_next_frame();
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}
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void
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test_usrp_inband_timestamps::build_and_send_ping()
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{
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d_tx->send(s_cmd_to_control_channel,
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pmt_list2(PMT_NIL, pmt_list1(pmt_list2(s_op_ping_fixed,
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pmt_list2(pmt_from_long(0),
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pmt_from_long(0))))));
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if(verbose && 0)
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std::cout << "[TEST_USRP_INBAND_TIMESTAMPS] Ping sent" << std::endl;
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}
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void
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test_usrp_inband_timestamps::build_and_send_next_frame()
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{
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// allocate the uniform vector for the samples
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// FIXME perhaps hold on to this between calls
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#if 0
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long nsamples_this_frame =
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std::min(d_nsamples_to_send - d_nsamples_xmitted,
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d_samples_per_frame);
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#else
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long nsamples_this_frame = d_samples_per_frame;
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#endif
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if (nsamples_this_frame == 0){
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d_done_sending = true;
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return;
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}
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size_t nshorts = 2 * nsamples_this_frame; // 16-bit I & Q
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pmt_t uvec = pmt_make_s16vector(nshorts, 0);
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size_t ignore;
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int16_t *samples = pmt_s16vector_writable_elements(uvec, ignore);
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// fill in the complex sinusoid
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for (int i = 0; i < nsamples_this_frame; i++){
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if (1){
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gr_complex s;
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d_nco.sincos(&s, 1, d_amplitude);
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// write 16-bit i & q
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samples[2*i] = (int16_t) s.real();
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samples[2*i+1] = (int16_t) s.imag();
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}
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else {
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gr_complex s(d_amplitude, d_amplitude);
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// write 16-bit i & q
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samples[2*i] = (int16_t) s.real();
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samples[2*i+1] = (int16_t) s.imag();
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}
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}
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pmt_t timestamp;
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if(bskip) {
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timestamp = pmt_from_long(0x0); // throw away
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bcurr++;
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if(bcurr == bstep) {
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bskip = false;
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bcurr = 0;
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}
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} else {
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timestamp = pmt_from_long(0xffffffff); // NOW
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timestamp = pmt_from_long(ptime);
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ptime += incr;
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bcurr++;
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if(bcurr == bstep) {
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//bskip = true;
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bcurr = 0;
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}
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}
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std::cout << bskip << " -- " << bcurr << std::endl;
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d_tx->send(s_cmd_xmit_raw_frame,
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pmt_list4(pmt_from_long(d_nframes_xmitted), // invocation-handle
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d_tx_chan, // channel
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uvec, // the samples
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timestamp));
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d_nsamples_xmitted += nsamples_this_frame;
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d_nframes_xmitted++;
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if(verbose && 0)
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std::cout << "[TEST_USRP_INBAND_TIMESTAMPS] Transmitted frame\n";
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//build_and_send_next_frame();
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}
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void
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test_usrp_inband_timestamps::handle_xmit_response(pmt_t handle)
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{
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if (d_done_sending &&
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pmt_to_long(handle) == (d_nframes_xmitted - 1)){
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// We're done sending and have received all responses
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enter_closing_channel();
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}
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build_and_send_next_frame();
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//build_and_send_ping();
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}
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void
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test_usrp_inband_timestamps::enter_closing_channel()
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{
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d_state = CLOSING_CHANNEL;
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d_tx->send(s_cmd_deallocate_channel, pmt_list2(PMT_NIL, d_tx_chan));
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if(verbose)
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std::cout << "[TEST_USRP_INBAND_TIMESTAMPS] Closing channel\n";
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}
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REGISTER_MBLOCK_CLASS(test_usrp_inband_timestamps);
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// ----------------------------------------------------------------
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int
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main (int argc, char **argv)
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{
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// handle any command line args here
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mb_runtime_sptr rt = mb_make_runtime();
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pmt_t result = PMT_NIL;
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rt->run("top", "test_usrp_inband_timestamps", PMT_F, &result);
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}
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