777 lines
18 KiB
C++
777 lines
18 KiB
C++
/*
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* Copyright (C) 2015,2016 Jonathan Naylor, G4KLX
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*
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* This program 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; version 2 of the License.
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*
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* This program 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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#include "DStarControl.h"
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#include "Utils.h"
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#include "Sync.h"
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#include "Log.h"
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#include <cassert>
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#include <ctime>
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const unsigned int MAX_SYNC_BIT_ERRORS = 2U;
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// #define DUMP_DSTAR
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CDStarControl::CDStarControl(const std::string& callsign, const std::string& module, CDStarNetwork* network, IDisplay* display, unsigned int timeout, bool duplex) :
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m_callsign(NULL),
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m_gateway(NULL),
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m_network(network),
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m_display(display),
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m_duplex(duplex),
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m_queue(1000U, "D-Star Control"),
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m_header(),
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m_state(RS_LISTENING),
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m_net(false),
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m_slowData(),
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m_n(0U),
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m_networkWatchdog(1000U, 0U, 1500U),
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m_holdoffTimer(1000U, 0U, 500U),
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m_timeoutTimer(1000U, timeout),
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m_packetTimer(1000U, 0U, 200U),
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m_ackTimer(1000U, 0U, 750U),
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m_elapsed(),
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m_frames(0U),
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m_lost(0U),
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m_fec(),
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m_bits(0U),
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m_errs(0U),
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m_lastFrame(NULL),
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m_fp(NULL)
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{
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assert(display != NULL);
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m_callsign = new unsigned char[DSTAR_LONG_CALLSIGN_LENGTH];
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m_gateway = new unsigned char[DSTAR_LONG_CALLSIGN_LENGTH];
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m_lastFrame = new unsigned char[DSTAR_FRAME_LENGTH_BYTES + 1U];
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std::string call = callsign;
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call.resize(DSTAR_LONG_CALLSIGN_LENGTH - 1U, ' ');
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std::string mod = module;
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mod.resize(1U, ' ');
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call.append(mod);
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std::string gate = callsign;
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gate.resize(DSTAR_LONG_CALLSIGN_LENGTH - 1U, ' ');
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gate.append("G");
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for (unsigned int i = 0U; i < DSTAR_LONG_CALLSIGN_LENGTH; i++) {
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m_callsign[i] = call.at(i);
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m_gateway[i] = gate.at(i);
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}
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}
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CDStarControl::~CDStarControl()
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{
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delete[] m_callsign;
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delete[] m_gateway;
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delete[] m_lastFrame;
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}
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bool CDStarControl::writeModem(unsigned char *data)
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{
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unsigned char type = data[0U];
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if (type == TAG_LOST && m_state == RS_RELAYING_RF_AUDIO) {
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if (m_bits == 0U) m_bits = 1U;
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LogMessage("D-Star, transmission lost, %.1f seconds, BER: %.1f%%", float(m_frames) / 50.0F, float(m_errs * 100U) / float(m_bits));
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m_ackTimer.start();
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writeEndOfTransmission();
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return false;
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}
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if (type == TAG_LOST) {
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if (m_state == RS_LATE_ENTRY)
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m_state = RS_LISTENING;
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return false;
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}
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if (type == TAG_HEADER) {
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CDStarHeader header(data + 1U);
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// Is this a transmission destined for a repeater?
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if (!header.isRepeater()) {
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LogMessage("D-Star, non repeater RF header received");
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return false;
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}
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unsigned char callsign[DSTAR_LONG_CALLSIGN_LENGTH];
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header.getRPTCall1(callsign);
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// Is it for us?
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if (::memcmp(callsign, m_callsign, DSTAR_LONG_CALLSIGN_LENGTH) != 0) {
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LogMessage("D-Star, received RF header for wrong repeater - %8.8s", callsign);
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return false;
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}
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unsigned char gateway[DSTAR_LONG_CALLSIGN_LENGTH];
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header.getRPTCall2(gateway);
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unsigned char my1[DSTAR_LONG_CALLSIGN_LENGTH];
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header.getMyCall1(my1);
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unsigned char my2[DSTAR_SHORT_CALLSIGN_LENGTH];
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header.getMyCall2(my2);
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unsigned char your[DSTAR_LONG_CALLSIGN_LENGTH];
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header.getYourCall(your);
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m_net = ::memcmp(gateway, m_gateway, DSTAR_LONG_CALLSIGN_LENGTH) == 0;
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if (m_state == RS_LISTENING) {
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// Only start the timeout if not already running
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if (!m_timeoutTimer.isRunning()) {
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m_timeoutTimer.start();
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m_bits = 1U;
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m_errs = 0U;
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}
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m_header = header;
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m_networkWatchdog.stop();
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m_holdoffTimer.stop();
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m_ackTimer.stop();
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m_frames = 1U;
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m_lost = 0U;
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m_n = 0U;
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if (m_duplex) {
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// Modify the header
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header.setRepeater(false);
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header.setRPTCall1(m_callsign);
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header.setRPTCall2(m_callsign);
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header.get(data + 1U);
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writeQueueHeader(data);
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}
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if (m_net) {
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// Modify the header
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header.setRepeater(false);
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header.setRPTCall1(m_callsign);
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header.setRPTCall2(m_gateway);
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header.get(data + 1U);
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for (unsigned i = 0U; i < 3U; i++)
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writeNetworkHeader(data, false);
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}
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m_state = RS_RELAYING_RF_AUDIO;
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m_display->writeDStar((char*)my1, (char*)my2, (char*)your);
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LogMessage("D-Star, received RF header from %8.8s/%4.4s to %8.8s", my1, my2, your);
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} else if (m_state == RS_RELAYING_NETWORK_AUDIO) {
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if (m_net) {
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for (unsigned i = 0U; i < 3U; i++)
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writeNetworkHeader(data, true);
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}
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LogMessage("D-Star, received RF busy header from %8.8s/%4.4s to %8.8s", my1, my2, your);
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return false;
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}
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} else if (type == TAG_EOT) {
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if (m_state == RS_RELAYING_RF_AUDIO) {
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if (m_net)
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writeNetworkData(DSTAR_END_PATTERN_BYTES, 0U, true, false);
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if (m_duplex)
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writeQueueEOT();
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m_ackTimer.start();
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if (m_bits == 0U) m_bits = 1U;
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LogMessage("D-Star, received RF end of transmission, %.1f seconds, BER: %.1f%%", float(m_frames) / 50.0F, float(m_errs * 100U) / float(m_bits));
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writeEndOfTransmission();
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} else if (m_state == RS_RELAYING_NETWORK_AUDIO) {
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if (m_net)
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writeNetworkData(DSTAR_END_PATTERN_BYTES, 0U, true, true);
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}
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return false;
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} else if (type == TAG_DATA) {
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if (m_state == RS_LISTENING) {
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// The sync is regenerated by the modem so can do exact match
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if (::memcmp(data + 1U + DSTAR_VOICE_FRAME_LENGTH_BYTES, DSTAR_SYNC_BYTES, DSTAR_DATA_FRAME_LENGTH_BYTES) == 0) {
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m_slowData.start();
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m_state = RS_LATE_ENTRY;
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}
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return false;
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} else if (m_state == RS_RELAYING_RF_AUDIO) {
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unsigned int errors = m_fec.regenerateDStar(data + 1U);
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LogDebug("D-Star, audio sequence no. %u, errs: %u/48", m_n, errors);
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m_errs += errors;
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m_bits += 48U;
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m_frames++;
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// The sync is regenerated by the modem so can do exact match
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if (::memcmp(data + 1U + DSTAR_VOICE_FRAME_LENGTH_BYTES, DSTAR_SYNC_BYTES, DSTAR_DATA_FRAME_LENGTH_BYTES) == 0)
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m_n = 0U;
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// Regenerate the sync
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if (m_n == 0U)
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CSync::addDStarSync(data + 1U);
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m_n = (m_n + 1U) % 21U;
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if (m_net)
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writeNetworkData(data, errors, false, false);
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if (m_duplex) {
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blankDTMF(data + 1U);
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writeQueueData(data);
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}
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} else if (m_state == RS_RELAYING_NETWORK_AUDIO) {
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m_fec.regenerateDStar(data + 1U);
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if (m_net)
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writeNetworkData(data, 0U, false, true);
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return false;
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} else if (m_state == RS_LATE_ENTRY) {
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// The sync is regenerated by the modem so can do exact match
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if (::memcmp(data + 1U + DSTAR_VOICE_FRAME_LENGTH_BYTES, DSTAR_SYNC_BYTES, DSTAR_DATA_FRAME_LENGTH_BYTES) == 0) {
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m_slowData.reset();
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return false;
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}
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CDStarHeader* header = m_slowData.add(data + 1U);
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if (header == NULL)
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return false;
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// Is this a transmission destined for a repeater?
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if (!header->isRepeater()) {
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LogMessage("D-Star, non repeater RF late entry header received");
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return false;
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}
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unsigned char callsign[DSTAR_LONG_CALLSIGN_LENGTH];
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header->getRPTCall1(callsign);
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// Is it for us?
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if (::memcmp(callsign, m_callsign, DSTAR_LONG_CALLSIGN_LENGTH) != 0) {
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LogMessage("D-Star, received RF header for wrong repeater - %8.8s", callsign);
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return false;
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}
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unsigned char gateway[DSTAR_LONG_CALLSIGN_LENGTH];
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header->getRPTCall2(gateway);
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unsigned char my1[DSTAR_LONG_CALLSIGN_LENGTH];
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header->getMyCall1(my1);
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unsigned char my2[DSTAR_SHORT_CALLSIGN_LENGTH];
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header->getMyCall2(my2);
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unsigned char your[DSTAR_LONG_CALLSIGN_LENGTH];
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header->getYourCall(your);
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m_net = ::memcmp(gateway, m_gateway, DSTAR_LONG_CALLSIGN_LENGTH) == 0;
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// Only reset the timeout if the timeout is not running
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if (!m_timeoutTimer.isRunning()) {
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m_timeoutTimer.start();
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m_bits = 1U;
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m_errs = 0U;
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}
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// Create a dummy start frame to replace the received frame
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m_networkWatchdog.stop();
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m_ackTimer.stop();
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m_header = *header;
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m_frames = 1U;
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m_lost = 0U;
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m_n = 1U;
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if (m_duplex) {
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unsigned char start[DSTAR_HEADER_LENGTH_BYTES + 1U];
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start[0U] = TAG_HEADER;
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// Modify the header
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header->setRepeater(false);
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header->setRPTCall1(m_callsign);
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header->setRPTCall2(m_callsign);
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header->get(start + 1U);
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writeQueueHeader(start);
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}
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if (m_net) {
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unsigned char start[DSTAR_HEADER_LENGTH_BYTES + 1U];
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start[0U] = TAG_HEADER;
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// Modify the header
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header->setRepeater(false);
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header->setRPTCall1(m_callsign);
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header->setRPTCall2(m_gateway);
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header->get(start + 1U);
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for (unsigned int i = 0U; i < 3U; i++)
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writeNetworkHeader(start, false);
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}
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delete header;
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unsigned int errors = m_fec.regenerateDStar(data + 1U);
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LogDebug("D-Star, audio sequence no. %u, errs: %u/48", m_n, errors);
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m_errs += errors;
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m_bits += 48U;
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if (m_net)
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writeNetworkData(data, errors, false, false);
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if (m_duplex) {
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blankDTMF(data + 1U);
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writeQueueData(data);
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}
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m_state = RS_RELAYING_RF_AUDIO;
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m_display->writeDStar((char*)my1, (char*)my2, (char*)your);
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LogMessage("D-Star, received RF late entry from %8.8s/%4.4s to %8.8s", my1, my2, your);
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}
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} else {
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CUtils::dump("D-Star, unknown data from modem", data, DSTAR_FRAME_LENGTH_BYTES + 1U);
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}
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return true;
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}
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unsigned int CDStarControl::readModem(unsigned char* data)
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{
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if (m_queue.isEmpty())
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return 0U;
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// Don't relay data until the timer has stopped.
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if (m_holdoffTimer.isRunning())
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return 0U;
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unsigned char len = 0U;
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m_queue.getData(&len, 1U);
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m_queue.getData(data, len);
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return len;
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}
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void CDStarControl::writeEndOfTransmission()
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{
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m_state = RS_LISTENING;
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m_display->clearDStar();
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m_networkWatchdog.stop();
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m_packetTimer.stop();
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if (m_network != NULL)
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m_network->reset();
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#if defined(DUMP_DSTAR)
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closeFile();
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#endif
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}
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void CDStarControl::writeNetwork()
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{
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assert(m_network != NULL);
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unsigned char data[DSTAR_HEADER_LENGTH_BYTES + 2U];
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unsigned int length = m_network->read(data, DSTAR_HEADER_LENGTH_BYTES + 2U);
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if (length == 0U)
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return;
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if (m_state == RS_RELAYING_RF_AUDIO || m_state == RS_LATE_ENTRY)
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return;
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m_networkWatchdog.start();
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unsigned char type = data[0U];
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if (type == TAG_HEADER) {
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if (m_state != RS_LISTENING)
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return;
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CDStarHeader header(data + 1U);
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unsigned char my1[DSTAR_LONG_CALLSIGN_LENGTH];
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header.getMyCall1(my1);
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unsigned char my2[DSTAR_SHORT_CALLSIGN_LENGTH];
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header.getMyCall2(my2);
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unsigned char your[DSTAR_LONG_CALLSIGN_LENGTH];
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header.getYourCall(your);
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m_header = header;
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m_timeoutTimer.start();
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m_packetTimer.start();
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m_elapsed.start();
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m_ackTimer.stop();
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m_frames = 0U;
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m_lost = 0U;
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m_n = 0U;
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m_bits = 1U;
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m_errs = 0U;
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writeQueueHeader(data);
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#if defined(DUMP_DSTAR)
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openFile();
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writeFile(data + 1U, length - 1U);
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#endif
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m_state = RS_RELAYING_NETWORK_AUDIO;
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m_display->writeDStar((char*)my1, (char*)my2, (char*)your);
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LogMessage("D-Star, received network header from %8.8s/%4.4s to %8.8s", my1, my2, your);
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} else if (type == TAG_EOT) {
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if (m_state != RS_RELAYING_NETWORK_AUDIO)
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return;
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m_timeoutTimer.stop();
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writeQueueEOT();
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data[1U] = TAG_EOT;
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#if defined(DUMP_DSTAR)
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writeFile(data + 1U, length - 1U);
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closeFile();
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#endif
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// We've received the header and EOT haven't we?
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m_frames += 2U;
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if (m_bits == 0U) m_bits = 1U;
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LogMessage("D-Star, received network end of transmission, %.1f seconds, %u%% packet loss, BER: %.1f%%", float(m_frames) / 50.0F, (m_lost * 100U) / m_frames, float(m_errs * 100U) / float(m_bits));
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writeEndOfTransmission();
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} else if (type == TAG_DATA) {
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if (m_state != RS_RELAYING_NETWORK_AUDIO)
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return;
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unsigned char n = data[1U];
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insertSilence(data + 2U, n);
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unsigned int errors = m_fec.regenerateDStar(data + 2U);
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m_errs += errors;
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m_bits += 48U;
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blankDTMF(data + 2U);
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// Regenerate the sync
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if (n == 0U)
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CSync::addDStarSync(data + 2U);
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m_n = n;
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m_packetTimer.start();
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m_frames++;
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data[1U] = TAG_DATA;
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#if defined(DUMP_DSTAR)
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writeFile(data + 1U, length - 1U);
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#endif
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writeQueueData(data + 1U);
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} else {
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CUtils::dump("D-Star, unknown data from network", data, DSTAR_FRAME_LENGTH_BYTES + 1U);
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}
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}
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void CDStarControl::clock(unsigned int ms)
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{
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if (m_network != NULL)
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writeNetwork();
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m_ackTimer.clock(ms);
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if (m_ackTimer.isRunning() && m_ackTimer.hasExpired()) {
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sendAck();
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m_ackTimer.stop();
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}
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m_holdoffTimer.clock(ms);
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if (m_holdoffTimer.isRunning() && m_holdoffTimer.hasExpired())
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m_holdoffTimer.stop();
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m_timeoutTimer.clock(ms);
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if (m_state == RS_RELAYING_NETWORK_AUDIO) {
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m_networkWatchdog.clock(ms);
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if (m_networkWatchdog.hasExpired()) {
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// We're received the header haven't we?
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m_frames += 1U;
|
|
if (m_bits == 0U) m_bits = 1U;
|
|
LogMessage("D-Star, network watchdog has expired, %.1f seconds, %u%% packet loss, BER: %.1f%%", float(m_frames) / 50.0F, (m_lost * 100U) / m_frames, float(m_errs * 100U) / float(m_bits));
|
|
m_timeoutTimer.stop();
|
|
writeEndOfTransmission();
|
|
#if defined(DUMP_DSTAR)
|
|
closeFile();
|
|
#endif
|
|
}
|
|
}
|
|
|
|
if (m_state == RS_RELAYING_NETWORK_AUDIO) {
|
|
m_packetTimer.clock(ms);
|
|
|
|
if (m_packetTimer.isRunning() && m_packetTimer.hasExpired()) {
|
|
unsigned int elapsed = m_elapsed.elapsed();
|
|
unsigned int frames = elapsed / DSTAR_FRAME_TIME;
|
|
|
|
if (frames > m_frames) {
|
|
unsigned int count = frames - m_frames;
|
|
if (count > 5U) {
|
|
LogMessage("D-Star, lost audio for 200ms filling in, elapsed: %ums, expected: %u, received: %u", elapsed, frames, m_frames);
|
|
insertSilence(count - 2U);
|
|
}
|
|
}
|
|
|
|
m_packetTimer.start();
|
|
}
|
|
}
|
|
}
|
|
|
|
void CDStarControl::writeQueueHeader(const unsigned char *data)
|
|
{
|
|
assert(data != NULL);
|
|
|
|
if (m_timeoutTimer.isRunning() && m_timeoutTimer.hasExpired())
|
|
return;
|
|
|
|
unsigned char len = DSTAR_HEADER_LENGTH_BYTES + 1U;
|
|
m_queue.addData(&len, 1U);
|
|
|
|
m_queue.addData(data, len);
|
|
}
|
|
|
|
void CDStarControl::writeQueueData(const unsigned char *data)
|
|
{
|
|
assert(data != NULL);
|
|
|
|
if (m_timeoutTimer.isRunning() && m_timeoutTimer.hasExpired())
|
|
return;
|
|
|
|
unsigned char len = DSTAR_FRAME_LENGTH_BYTES + 1U;
|
|
m_queue.addData(&len, 1U);
|
|
|
|
m_queue.addData(data, len);
|
|
}
|
|
|
|
void CDStarControl::writeQueueEOT()
|
|
{
|
|
if (m_timeoutTimer.isRunning() && m_timeoutTimer.hasExpired())
|
|
return;
|
|
|
|
unsigned char len = 1U;
|
|
m_queue.addData(&len, 1U);
|
|
|
|
unsigned char data = TAG_EOT;
|
|
m_queue.addData(&data, len);
|
|
}
|
|
|
|
void CDStarControl::writeNetworkHeader(const unsigned char* data, bool busy)
|
|
{
|
|
assert(data != NULL);
|
|
|
|
if (m_network == NULL)
|
|
return;
|
|
|
|
// Don't send to the network if the timeout has expired
|
|
if (m_timeoutTimer.isRunning() && m_timeoutTimer.hasExpired())
|
|
return;
|
|
|
|
m_network->writeHeader(data + 1U, DSTAR_HEADER_LENGTH_BYTES, busy);
|
|
}
|
|
|
|
void CDStarControl::writeNetworkData(const unsigned char* data, unsigned int errors, bool end, bool busy)
|
|
{
|
|
assert(data != NULL);
|
|
|
|
if (m_network == NULL)
|
|
return;
|
|
|
|
// Don't send to the network if the timeout has expired
|
|
if (m_timeoutTimer.isRunning() && m_timeoutTimer.hasExpired())
|
|
return;
|
|
|
|
// XXX
|
|
m_network->writeData(data + 1U, DSTAR_FRAME_LENGTH_BYTES, errors, end, busy);
|
|
}
|
|
|
|
bool CDStarControl::openFile()
|
|
{
|
|
if (m_fp != NULL)
|
|
return true;
|
|
|
|
time_t t;
|
|
::time(&t);
|
|
|
|
struct tm* tm = ::localtime(&t);
|
|
|
|
char name[100U];
|
|
::sprintf(name, "DStar_%04d%02d%02d_%02d%02d%02d.ambe", tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday, tm->tm_hour, tm->tm_min, tm->tm_sec);
|
|
|
|
m_fp = ::fopen(name, "wb");
|
|
if (m_fp == NULL)
|
|
return false;
|
|
|
|
::fwrite("DSTAR", 1U, 4U, m_fp);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool CDStarControl::writeFile(const unsigned char* data, unsigned int length)
|
|
{
|
|
if (m_fp == NULL)
|
|
return false;
|
|
|
|
::fwrite(data, 1U, length, m_fp);
|
|
|
|
return true;
|
|
}
|
|
|
|
void CDStarControl::closeFile()
|
|
{
|
|
if (m_fp != NULL) {
|
|
::fclose(m_fp);
|
|
m_fp = NULL;
|
|
}
|
|
}
|
|
|
|
void CDStarControl::insertSilence(const unsigned char* data, unsigned char seqNo)
|
|
{
|
|
assert(data != NULL);
|
|
|
|
// Check to see if we have any spaces to fill?
|
|
unsigned char seq = (m_n + 1U) % 21U;
|
|
if (seq == seqNo) {
|
|
// Just copy the data, nothing else to do here
|
|
::memcpy(m_lastFrame, data, DSTAR_FRAME_LENGTH_BYTES + 1U);
|
|
return;
|
|
}
|
|
|
|
unsigned int oldSeqNo = (m_n + 1U) % 21U;
|
|
unsigned int newSeqNo = seqNo;
|
|
|
|
unsigned int count;
|
|
if (newSeqNo > oldSeqNo)
|
|
count = newSeqNo - oldSeqNo;
|
|
else
|
|
count = (21U + newSeqNo) - oldSeqNo;
|
|
|
|
if (count < 10U)
|
|
insertSilence(count);
|
|
|
|
::memcpy(m_lastFrame, data, DSTAR_FRAME_LENGTH_BYTES + 1U);
|
|
}
|
|
|
|
void CDStarControl::insertSilence(unsigned int count)
|
|
{
|
|
unsigned char n = (m_n + 1U) % 21U;
|
|
|
|
for (unsigned int i = 0U; i < count; i++) {
|
|
if (i < 3U) {
|
|
writeQueueData(m_lastFrame);
|
|
} else {
|
|
if (n == 0U)
|
|
writeQueueData(DSTAR_NULL_FRAME_SYNC_BYTES);
|
|
else
|
|
writeQueueData(DSTAR_NULL_FRAME_DATA_BYTES);
|
|
}
|
|
|
|
m_n = n;
|
|
|
|
m_frames++;
|
|
m_lost++;
|
|
|
|
n = (n + 1U) % 21U;
|
|
}
|
|
|
|
LogMessage("D-Star, inserted %u audio frames", count);
|
|
}
|
|
|
|
void CDStarControl::blankDTMF(unsigned char* data) const
|
|
{
|
|
assert(data != NULL);
|
|
|
|
// DTMF begins with these byte values
|
|
if ((data[0] & DSTAR_DTMF_MASK[0]) == DSTAR_DTMF_SIG[0] && (data[1] & DSTAR_DTMF_MASK[1]) == DSTAR_DTMF_SIG[1] &&
|
|
(data[2] & DSTAR_DTMF_MASK[2]) == DSTAR_DTMF_SIG[2] && (data[3] & DSTAR_DTMF_MASK[3]) == DSTAR_DTMF_SIG[3] &&
|
|
(data[4] & DSTAR_DTMF_MASK[4]) == DSTAR_DTMF_SIG[4] && (data[5] & DSTAR_DTMF_MASK[5]) == DSTAR_DTMF_SIG[5] &&
|
|
(data[6] & DSTAR_DTMF_MASK[6]) == DSTAR_DTMF_SIG[6] && (data[7] & DSTAR_DTMF_MASK[7]) == DSTAR_DTMF_SIG[7] &&
|
|
(data[8] & DSTAR_DTMF_MASK[8]) == DSTAR_DTMF_SIG[8])
|
|
::memcpy(data, DSTAR_NULL_AMBE_DATA_BYTES, DSTAR_VOICE_FRAME_LENGTH_BYTES);
|
|
}
|
|
|
|
void CDStarControl::sendAck()
|
|
{
|
|
m_timeoutTimer.stop();
|
|
|
|
unsigned char user[DSTAR_LONG_CALLSIGN_LENGTH];
|
|
m_header.getMyCall1(user);
|
|
|
|
CDStarHeader header;
|
|
header.setUnavailable(true);
|
|
header.setMyCall1(m_callsign);
|
|
header.setYourCall(user);
|
|
header.setRPTCall1(m_gateway);
|
|
header.setRPTCall2(m_callsign);
|
|
|
|
unsigned char data[DSTAR_HEADER_LENGTH_BYTES + 1U];
|
|
header.get(data + 1U);
|
|
data[0U] = TAG_HEADER;
|
|
|
|
writeQueueHeader(data);
|
|
|
|
writeQueueData(DSTAR_NULL_FRAME_SYNC_BYTES);
|
|
|
|
LINK_STATUS status = LS_NONE;
|
|
unsigned char reflector[DSTAR_LONG_CALLSIGN_LENGTH];
|
|
if (m_network != NULL)
|
|
m_network->getStatus(status, reflector);
|
|
|
|
char text[40U];
|
|
if (status == LS_LINKED_DEXTRA || status == LS_LINKED_DPLUS || status == LS_LINKED_DCS || status == LS_LINKED_CCS || status == LS_LINKED_LOOPBACK)
|
|
::sprintf(text, "%-8.8s BER: %.1f%% ", reflector, float(m_errs * 100U) / float(m_bits));
|
|
else
|
|
::sprintf(text, "BER: %.1f%% ", float(m_errs * 100U) / float(m_bits));
|
|
m_slowData.setText(text);
|
|
|
|
::memcpy(data, DSTAR_NULL_FRAME_DATA_BYTES, DSTAR_FRAME_LENGTH_BYTES + 1U);
|
|
|
|
for (unsigned int i = 0U; i < 19U; i++) {
|
|
m_slowData.get(data + 1U + DSTAR_VOICE_FRAME_LENGTH_BYTES);
|
|
writeQueueData(data);
|
|
}
|
|
|
|
writeQueueEOT();
|
|
}
|