934 lines
22 KiB
C++
934 lines
22 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 <cstdio>
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#include <cassert>
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#include <ctime>
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#include <algorithm>
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#include <functional>
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const unsigned int MAX_SYNC_BIT_ERRORS = 2U;
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bool CallsignCompare(const std::string& arg, const unsigned char* my)
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{
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for (unsigned int i = 0U; i < (DSTAR_LONG_CALLSIGN_LENGTH - 1U); i++) {
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if (arg.at(i) != my[i])
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return false;
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}
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return true;
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}
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// #define DUMP_DSTAR
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CDStarControl::CDStarControl(const std::string& callsign, const std::string& module, bool selfOnly, const std::vector<std::string>& blackList, CDStarNetwork* network, CDisplay* 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_selfOnly(selfOnly),
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m_blackList(blackList),
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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(5000U, "D-Star Control"),
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m_rfHeader(),
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m_netHeader(),
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m_rfState(RS_RF_LISTENING),
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m_netState(RS_NET_IDLE),
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m_net(false),
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m_slowData(),
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m_rfN(0U),
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m_netN(0U),
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m_networkWatchdog(1000U, 0U, 1500U),
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m_rfTimeoutTimer(1000U, timeout),
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m_netTimeoutTimer(1000U, timeout),
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m_packetTimer(1000U, 0U, 300U),
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m_ackTimer(1000U, 0U, 750U),
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m_interval(),
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m_elapsed(),
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m_rfFrames(0U),
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m_netFrames(0U),
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m_netLost(0U),
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m_fec(),
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m_rfBits(1U),
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m_netBits(1U),
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m_rfErrs(0U),
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m_netErrs(0U),
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m_lastFrame(NULL),
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m_lastFrameValid(false),
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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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m_interval.start();
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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, unsigned int len)
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{
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assert(data != NULL);
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unsigned char type = data[0U];
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if (type == TAG_LOST && m_rfState == RS_RF_AUDIO) {
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LogMessage("D-Star, transmission lost, %.1f seconds, BER: %.1f%%", float(m_rfFrames) / 50.0F, float(m_rfErrs * 100U) / float(m_rfBits));
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writeEndRF();
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return false;
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}
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if (type == TAG_LOST) {
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m_rfState = RS_RF_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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unsigned char my1[DSTAR_LONG_CALLSIGN_LENGTH];
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header.getMyCall1(my1);
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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 from %8.8s", my1);
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m_rfState = RS_RF_REJECTED;
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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) from %8.8s", callsign, my1);
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m_rfState = RS_RF_REJECTED;
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return false;
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}
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if (m_selfOnly && ::memcmp(my1, m_callsign, DSTAR_LONG_CALLSIGN_LENGTH - 1U) != 0) {
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LogMessage("D-Star, invalid access attempt from %8.8s", my1);
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m_rfState = RS_RF_REJECTED;
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return false;
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}
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if (!m_selfOnly && std::find_if(m_blackList.begin(), m_blackList.end(), std::bind(CallsignCompare, std::placeholders::_1, my1)) != m_blackList.end()) {
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LogMessage("D-Star, invalid access attempt from %8.8s", my1);
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m_rfState = RS_RF_REJECTED;
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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 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 start the timeout if not already running
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if (!m_rfTimeoutTimer.isRunning())
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m_rfTimeoutTimer.start();
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m_rfHeader = header;
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m_ackTimer.stop();
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m_rfBits = 1U;
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m_rfErrs = 0U;
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m_rfFrames = 1U;
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m_rfN = 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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writeQueueHeaderRF(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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writeNetworkHeaderRF(data);
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}
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m_rfState = RS_RF_AUDIO;
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if (m_netState == RS_NET_IDLE)
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m_display->writeDStar((char*)my1, (char*)my2, (char*)your, "R", " ");
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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 (type == TAG_EOT) {
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if (m_rfState == RS_RF_REJECTED) {
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m_rfState = RS_RF_LISTENING;
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} else if (m_rfState == RS_RF_AUDIO) {
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if (m_net)
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writeNetworkDataRF(DSTAR_END_PATTERN_BYTES, 0U, true);
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if (m_duplex)
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writeQueueEOTRF();
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LogMessage("D-Star, received RF end of transmission, %.1f seconds, BER: %.1f%%", float(m_rfFrames) / 50.0F, float(m_rfErrs * 100U) / float(m_rfBits));
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writeEndRF();
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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_rfState == RS_RF_REJECTED) {
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return false;
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} else if (m_rfState == RS_RF_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_rfState = RS_RF_LATE_ENTRY;
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}
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return false;
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} else if (m_rfState == RS_RF_AUDIO) {
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unsigned int errors = 0U;
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if (!m_rfHeader.isDataPacket())
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errors = m_fec.regenerateDStar(data + 1U);
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m_rfErrs += errors;
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m_rfBits += 48U;
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m_rfFrames++;
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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_rfN = 0U;
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// Regenerate the sync
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if (m_rfN == 0U)
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CSync::addDStarSync(data + 1U);
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LogDebug("D-Star, audio sequence no. %u, errs: %u/48", m_rfN, errors);
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if (m_net)
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writeNetworkDataRF(data, errors, false);
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if (m_duplex) {
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blankDTMF(data + 1U);
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writeQueueDataRF(data);
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}
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m_rfN = (m_rfN + 1U) % 21U;
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} else if (m_rfState == RS_RF_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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delete header;
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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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delete header;
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return false;
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}
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unsigned char my1[DSTAR_LONG_CALLSIGN_LENGTH];
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header->getMyCall1(my1);
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if (m_selfOnly && ::memcmp(my1, m_callsign, DSTAR_LONG_CALLSIGN_LENGTH - 1U) != 0) {
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delete header;
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return false;
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}
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if (!m_selfOnly && std::find_if(m_blackList.begin(), m_blackList.end(), std::bind(CallsignCompare, std::placeholders::_1, my1)) != m_blackList.end()) {
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delete header;
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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 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_rfTimeoutTimer.isRunning())
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m_rfTimeoutTimer.start();
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// Create a dummy start frame to replace the received frame
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m_ackTimer.stop();
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m_rfHeader = *header;
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m_rfBits = 1U;
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m_rfErrs = 0U;
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m_rfN = 0U;
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m_rfFrames = 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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writeQueueHeaderRF(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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writeNetworkHeaderRF(start);
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}
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delete header;
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unsigned int errors = 0U;
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if (!m_rfHeader.isDataPacket())
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errors = m_fec.regenerateDStar(data + 1U);
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m_rfErrs += errors;
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m_rfBits += 48U;
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LogDebug("D-Star, audio sequence no. %u, errs: %u/48", m_rfN, errors);
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if (m_net)
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writeNetworkDataRF(data, errors, false);
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if (m_duplex) {
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blankDTMF(data + 1U);
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writeQueueDataRF(data);
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}
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m_rfState = RS_RF_AUDIO;
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m_rfN = (m_rfN + 1U) % 21U;
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if (m_netState == RS_NET_IDLE)
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m_display->writeDStar((char*)my1, (char*)my2, (char*)your, "R", " ");
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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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assert(data != NULL);
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if (m_queue.isEmpty())
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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::writeEndRF()
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{
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m_rfState = RS_RF_LISTENING;
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if (m_netState == RS_NET_IDLE) {
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m_display->clearDStar();
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m_ackTimer.start();
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if (m_network != NULL)
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m_network->reset();
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} else {
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m_rfTimeoutTimer.stop();
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}
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}
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void CDStarControl::writeEndNet()
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{
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m_netState = RS_NET_IDLE;
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m_lastFrameValid = false;
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m_display->clearDStar();
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m_netTimeoutTimer.stop();
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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_rfState == RS_RF_AUDIO && m_netState == RS_NET_IDLE)
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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_netState != RS_NET_IDLE)
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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_netHeader = header;
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m_netTimeoutTimer.start();
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m_packetTimer.start();
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//m_elapsed.start(); // commented out and placed lower down due to delay introduced somewhere below here.
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m_ackTimer.stop();
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m_lastFrameValid = false;
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m_netFrames = 0U;
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m_netLost = 0U;
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m_netN = 20U;
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m_netBits = 1U;
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m_netErrs = 0U;
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writeQueueHeaderNet(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_netState = RS_NET_AUDIO;
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LINK_STATUS status = LS_NONE;
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unsigned char reflector[DSTAR_LONG_CALLSIGN_LENGTH];
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m_network->getStatus(status, reflector);
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if (status == LS_LINKED_DEXTRA || status == LS_LINKED_DPLUS || status == LS_LINKED_DCS || status == LS_LINKED_CCS || status == LS_LINKED_LOOPBACK) {
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m_display->writeDStar((char*)my1, (char*)my2, (char*)your, "N", (char*) reflector);
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LogMessage("D-Star, received network header from %8.8s/%4.4s to %8.8s via %8.8s", my1, my2, your, reflector);
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} else {
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m_display->writeDStar((char*)my1, (char*)my2, (char*)your, "N", (char*) " ");
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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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}
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// Something just above here introduces a large delay forcing erroneous(?) insertion of silence packets.
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// Starting the elapsed timer here instead of the commented out position above solves that.
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m_elapsed.start();
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} else if (type == TAG_EOT) {
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if (m_netState != RS_NET_AUDIO)
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return;
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writeQueueEOTNet();
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|
|
|
data[1U] = TAG_EOT;
|
|
|
|
#if defined(DUMP_DSTAR)
|
|
writeFile(data + 1U, length - 1U);
|
|
closeFile();
|
|
#endif
|
|
// We've received the header and EOT haven't we?
|
|
m_netFrames += 2U;
|
|
LogMessage("D-Star, received network end of transmission, %.1f seconds, %u%% packet loss, BER: %.1f%%", float(m_netFrames) / 50.0F, (m_netLost * 100U) / m_netFrames, float(m_netErrs * 100U) / float(m_netBits));
|
|
|
|
writeEndNet();
|
|
} else if (type == TAG_DATA) {
|
|
if (m_netState != RS_NET_AUDIO)
|
|
return;
|
|
|
|
unsigned char n = data[1U];
|
|
|
|
unsigned int errors = 0U;
|
|
if (!m_netHeader.isDataPacket())
|
|
errors = m_fec.regenerateDStar(data + 2U);
|
|
|
|
blankDTMF(data + 2U);
|
|
|
|
data[1U] = TAG_DATA;
|
|
|
|
// Insert silence and reject if in the past
|
|
bool ret = insertSilence(data + 1U, n);
|
|
if (!ret)
|
|
return;
|
|
|
|
m_netErrs += errors;
|
|
m_netBits += 48U;
|
|
|
|
m_netN = n;
|
|
|
|
LogDebug("D-Star, audio sequence no. %u, errs: %u/48", m_netN, errors);
|
|
|
|
// Regenerate the sync
|
|
if (n == 0U)
|
|
CSync::addDStarSync(data + 2U);
|
|
|
|
m_packetTimer.start();
|
|
m_netFrames++;
|
|
|
|
#if defined(DUMP_DSTAR)
|
|
writeFile(data + 1U, length - 1U);
|
|
#endif
|
|
writeQueueDataNet(data + 1U);
|
|
} else {
|
|
CUtils::dump("D-Star, unknown data from network", data, DSTAR_FRAME_LENGTH_BYTES + 1U);
|
|
}
|
|
}
|
|
|
|
void CDStarControl::clock()
|
|
{
|
|
unsigned int ms = m_interval.elapsed();
|
|
m_interval.start();
|
|
|
|
if (m_network != NULL)
|
|
writeNetwork();
|
|
|
|
m_ackTimer.clock(ms);
|
|
if (m_ackTimer.isRunning() && m_ackTimer.hasExpired()) {
|
|
sendAck();
|
|
m_ackTimer.stop();
|
|
}
|
|
|
|
m_rfTimeoutTimer.clock(ms);
|
|
m_netTimeoutTimer.clock(ms);
|
|
|
|
if (m_netState == RS_NET_AUDIO) {
|
|
m_networkWatchdog.clock(ms);
|
|
|
|
if (m_networkWatchdog.hasExpired()) {
|
|
// We're received the header haven't we?
|
|
m_netFrames += 1U;
|
|
LogMessage("D-Star, network watchdog has expired, %.1f seconds, %u%% packet loss, BER: %.1f%%", float(m_netFrames) / 50.0F, (m_netLost * 100U) / m_netFrames, float(m_netErrs * 100U) / float(m_netBits));
|
|
writeEndNet();
|
|
#if defined(DUMP_DSTAR)
|
|
closeFile();
|
|
#endif
|
|
}
|
|
}
|
|
|
|
if (m_netState == RS_NET_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_netFrames) {
|
|
unsigned int count = frames - m_netFrames;
|
|
if (count > 15U) {
|
|
LogDebug("D-Star, lost audio for 300ms filling in, elapsed: %ums, expected: %u, received: %u", elapsed, frames, m_netFrames);
|
|
insertSilence(count - 2U);
|
|
}
|
|
}
|
|
|
|
m_packetTimer.start();
|
|
}
|
|
}
|
|
}
|
|
|
|
void CDStarControl::writeQueueHeaderRF(const unsigned char *data)
|
|
{
|
|
assert(data != NULL);
|
|
|
|
if (m_netState != RS_NET_IDLE)
|
|
return;
|
|
|
|
if (m_rfTimeoutTimer.isRunning() && m_rfTimeoutTimer.hasExpired())
|
|
return;
|
|
|
|
unsigned char len = DSTAR_HEADER_LENGTH_BYTES + 1U;
|
|
|
|
unsigned int space = m_queue.freeSpace();
|
|
if (space < (len + 1U)) {
|
|
LogError("D-Star, overflow in the D-Star RF queue");
|
|
return;
|
|
}
|
|
|
|
m_queue.addData(&len, 1U);
|
|
|
|
m_queue.addData(data, len);
|
|
}
|
|
|
|
void CDStarControl::writeQueueDataRF(const unsigned char *data)
|
|
{
|
|
assert(data != NULL);
|
|
|
|
if (m_netState != RS_NET_IDLE)
|
|
return;
|
|
|
|
if (m_rfTimeoutTimer.isRunning() && m_rfTimeoutTimer.hasExpired())
|
|
return;
|
|
|
|
unsigned char len = DSTAR_FRAME_LENGTH_BYTES + 1U;
|
|
|
|
unsigned int space = m_queue.freeSpace();
|
|
if (space < (len + 1U)) {
|
|
LogError("D-Star, overflow in the D-Star RF queue");
|
|
return;
|
|
}
|
|
|
|
m_queue.addData(&len, 1U);
|
|
|
|
m_queue.addData(data, len);
|
|
}
|
|
|
|
void CDStarControl::writeQueueEOTRF()
|
|
{
|
|
if (m_netState != RS_NET_IDLE)
|
|
return;
|
|
|
|
if (m_rfTimeoutTimer.isRunning() && m_rfTimeoutTimer.hasExpired())
|
|
return;
|
|
|
|
unsigned char len = 1U;
|
|
|
|
unsigned int space = m_queue.freeSpace();
|
|
if (space < (len + 1U)) {
|
|
LogError("D-Star, overflow in the D-Star RF queue");
|
|
return;
|
|
}
|
|
|
|
m_queue.addData(&len, 1U);
|
|
|
|
unsigned char data = TAG_EOT;
|
|
m_queue.addData(&data, len);
|
|
}
|
|
|
|
void CDStarControl::writeQueueHeaderNet(const unsigned char *data)
|
|
{
|
|
assert(data != NULL);
|
|
|
|
if (m_netTimeoutTimer.isRunning() && m_netTimeoutTimer.hasExpired())
|
|
return;
|
|
|
|
unsigned char len = DSTAR_HEADER_LENGTH_BYTES + 1U;
|
|
|
|
unsigned int space = m_queue.freeSpace();
|
|
if (space < (len + 1U)) {
|
|
LogError("D-Star, overflow in the D-Star RF queue");
|
|
return;
|
|
}
|
|
|
|
m_queue.addData(&len, 1U);
|
|
|
|
m_queue.addData(data, len);
|
|
}
|
|
|
|
void CDStarControl::writeQueueDataNet(const unsigned char *data)
|
|
{
|
|
assert(data != NULL);
|
|
|
|
if (m_netTimeoutTimer.isRunning() && m_netTimeoutTimer.hasExpired())
|
|
return;
|
|
|
|
unsigned char len = DSTAR_FRAME_LENGTH_BYTES + 1U;
|
|
|
|
unsigned int space = m_queue.freeSpace();
|
|
if (space < (len + 1U)) {
|
|
LogError("D-Star, overflow in the D-Star RF queue");
|
|
return;
|
|
}
|
|
|
|
m_queue.addData(&len, 1U);
|
|
|
|
m_queue.addData(data, len);
|
|
}
|
|
|
|
void CDStarControl::writeQueueEOTNet()
|
|
{
|
|
if (m_netTimeoutTimer.isRunning() && m_netTimeoutTimer.hasExpired())
|
|
return;
|
|
|
|
unsigned char len = 1U;
|
|
|
|
unsigned int space = m_queue.freeSpace();
|
|
if (space < (len + 1U)) {
|
|
LogError("D-Star, overflow in the D-Star RF queue");
|
|
return;
|
|
}
|
|
|
|
m_queue.addData(&len, 1U);
|
|
|
|
unsigned char data = TAG_EOT;
|
|
m_queue.addData(&data, len);
|
|
}
|
|
|
|
void CDStarControl::writeNetworkHeaderRF(const unsigned char* data)
|
|
{
|
|
assert(data != NULL);
|
|
|
|
if (m_network == NULL)
|
|
return;
|
|
|
|
// Don't send to the network if the timeout has expired
|
|
if (m_rfTimeoutTimer.isRunning() && m_rfTimeoutTimer.hasExpired())
|
|
return;
|
|
|
|
m_network->writeHeader(data + 1U, DSTAR_HEADER_LENGTH_BYTES, m_netState != RS_NET_IDLE);
|
|
}
|
|
|
|
void CDStarControl::writeNetworkDataRF(const unsigned char* data, unsigned int errors, bool end)
|
|
{
|
|
assert(data != NULL);
|
|
|
|
if (m_network == NULL)
|
|
return;
|
|
|
|
// Don't send to the network if the timeout has expired
|
|
if (m_rfTimeoutTimer.isRunning() && m_rfTimeoutTimer.hasExpired())
|
|
return;
|
|
|
|
m_network->writeData(data + 1U, DSTAR_FRAME_LENGTH_BYTES, errors, end, m_netState != RS_NET_IDLE);
|
|
}
|
|
|
|
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;
|
|
}
|
|
}
|
|
|
|
bool CDStarControl::insertSilence(const unsigned char* data, unsigned char seqNo)
|
|
{
|
|
assert(data != NULL);
|
|
|
|
// Check to see if we have any spaces to fill?
|
|
unsigned int oldSeqNo = (m_netN + 1U) % 21U;
|
|
if (oldSeqNo == seqNo) {
|
|
// Just copy the data, nothing else to do here
|
|
::memcpy(m_lastFrame, data, DSTAR_FRAME_LENGTH_BYTES + 1U);
|
|
m_lastFrameValid = true;
|
|
return true;
|
|
}
|
|
|
|
unsigned int count;
|
|
if (seqNo > oldSeqNo)
|
|
count = seqNo - oldSeqNo;
|
|
else
|
|
count = (21U + seqNo) - oldSeqNo;
|
|
|
|
if (count >= 10U)
|
|
return false;
|
|
|
|
insertSilence(count);
|
|
|
|
::memcpy(m_lastFrame, data, DSTAR_FRAME_LENGTH_BYTES + 1U);
|
|
m_lastFrameValid = true;
|
|
|
|
return true;
|
|
}
|
|
|
|
void CDStarControl::insertSilence(unsigned int count)
|
|
{
|
|
unsigned char n = (m_netN + 1U) % 21U;
|
|
|
|
for (unsigned int i = 0U; i < count; i++) {
|
|
if (i < 3U && m_lastFrameValid) {
|
|
if (n == 0U) {
|
|
::memcpy(m_lastFrame + DSTAR_VOICE_FRAME_LENGTH_BYTES + 1U, DSTAR_NULL_SLOW_SYNC_BYTES, DSTAR_DATA_FRAME_LENGTH_BYTES);
|
|
writeQueueDataNet(m_lastFrame);
|
|
} else {
|
|
::memcpy(m_lastFrame + DSTAR_VOICE_FRAME_LENGTH_BYTES + 1U, DSTAR_NULL_SLOW_DATA_BYTES, DSTAR_DATA_FRAME_LENGTH_BYTES);
|
|
writeQueueDataNet(m_lastFrame);
|
|
}
|
|
} else {
|
|
m_lastFrameValid = false;
|
|
|
|
if (n == 0U)
|
|
writeQueueDataNet(DSTAR_NULL_FRAME_SYNC_BYTES);
|
|
else
|
|
writeQueueDataNet(DSTAR_NULL_FRAME_DATA_BYTES);
|
|
}
|
|
|
|
m_netN = n;
|
|
|
|
m_netFrames++;
|
|
m_netLost++;
|
|
|
|
n = (n + 1U) % 21U;
|
|
}
|
|
}
|
|
|
|
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_rfTimeoutTimer.stop();
|
|
|
|
unsigned char user[DSTAR_LONG_CALLSIGN_LENGTH];
|
|
m_rfHeader.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;
|
|
|
|
writeQueueHeaderRF(data);
|
|
|
|
writeQueueDataRF(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_rfErrs * 100U) / float(m_rfBits));
|
|
else
|
|
::sprintf(text, "BER: %.1f%% ", float(m_rfErrs * 100U) / float(m_rfBits));
|
|
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);
|
|
writeQueueDataRF(data);
|
|
}
|
|
|
|
writeQueueEOTRF();
|
|
}
|