Change to the new method of M17 EOT transmission.
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cb89b34a39
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@ -329,8 +329,18 @@ bool CM17Control::writeModem(unsigned char* data, unsigned int len)
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#if defined(DUMP_M17)
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writeFile(data + 2U);
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#endif
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if (m_duplex)
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writeQueueEOTRF();
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if (m_duplex) {
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unsigned char rfData[M17_FRAME_LENGTH_BYTES + 2U];
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rfData[0U] = TAG_EOT;
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rfData[1U] = 0x00U;
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// Generate the sync
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for (unsigned int i = 0U; i < M17_FRAME_LENGTH_BYTES; i += M17_SYNC_LENGTH_BYTES)
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CSync::addM17EOTSync(rfData + 2U + i);
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writeQueueRF(rfData);
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}
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if (m_network != NULL && m_rfTimeoutTimer.isRunning() && !m_rfTimeoutTimer.hasExpired()) {
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unsigned char netData[M17_LSF_LENGTH_BYTES + M17_FN_LENGTH_BYTES + M17_PAYLOAD_LENGTH_BYTES + M17_CRC_LENGTH_BYTES];
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@ -560,7 +570,16 @@ void CM17Control::writeNetwork()
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LogMessage("M17, received network end of transmission from %s to %s, %.1f seconds", source.c_str(), dest.c_str(), float(m_netFrames) / 25.0F);
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writeQueueEOTNet();
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unsigned char data[M17_FRAME_LENGTH_BYTES + 2U];
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data[0U] = TAG_EOT;
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data[1U] = 0x00U;
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// Generate the sync
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for (unsigned int i = 0U; i < M17_FRAME_LENGTH_BYTES; i += M17_SYNC_LENGTH_BYTES)
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CSync::addM17EOTSync(data + 2U + i);
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writeQueueNet(data);
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writeEndNet();
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}
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@ -686,28 +705,6 @@ void CM17Control::writeQueueRF(const unsigned char *data)
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m_queue.addData(data, len);
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}
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void CM17Control::writeQueueEOTRF()
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{
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if (m_netState != RS_NET_IDLE)
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return;
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if (m_rfTimeoutTimer.isRunning() && m_rfTimeoutTimer.hasExpired())
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return;
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const unsigned char len = 1U;
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unsigned int space = m_queue.freeSpace();
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if (space < (len + 1U)) {
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LogError("M17, overflow in the M17 RF queue");
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return;
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}
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m_queue.addData(&len, 1U);
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const unsigned char data = TAG_EOT;
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m_queue.addData(&data, len);
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}
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void CM17Control::writeQueueNet(const unsigned char *data)
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{
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assert(data != NULL);
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@ -728,25 +725,6 @@ void CM17Control::writeQueueNet(const unsigned char *data)
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m_queue.addData(data, len);
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}
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void CM17Control::writeQueueEOTNet()
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{
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if (m_netTimeoutTimer.isRunning() && m_netTimeoutTimer.hasExpired())
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return;
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const unsigned char len = 1U;
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unsigned int space = m_queue.freeSpace();
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if (space < (len + 1U)) {
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LogError("M17, overflow in the M17 RF queue");
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return;
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}
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m_queue.addData(&len, 1U);
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const unsigned char data = TAG_EOT;
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m_queue.addData(&data, len);
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}
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void CM17Control::interleaver(const unsigned char* in, unsigned char* out) const
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{
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assert(in != NULL);
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@ -82,10 +82,8 @@ private:
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bool processRFHeader(bool lateEntry);
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void writeQueueRF(const unsigned char* data);
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void writeQueueEOTRF();
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void writeQueueNet(const unsigned char* data);
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void writeQueueEOTNet();
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void writeNetwork();
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@ -26,6 +26,7 @@ const unsigned int M17_FRAME_LENGTH_BYTES = M17_FRAME_LENGTH_BITS / 8U;
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const unsigned char M17_LINK_SETUP_SYNC_BYTES[] = {0x55U, 0xF7U};
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const unsigned char M17_STREAM_SYNC_BYTES[] = {0xFFU, 0x5DU};
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const unsigned char M17_EOT_SYNC_BYTES[] = {0x55U, 0x5DU};
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const unsigned int M17_SYNC_LENGTH_BITS = 16U;
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const unsigned int M17_SYNC_LENGTH_BYTES = M17_SYNC_LENGTH_BITS / 8U;
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@ -1534,6 +1534,7 @@ bool CModem::writeM17Data(const unsigned char* data, unsigned int length)
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break;
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case TAG_EOT:
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buffer[2U] = MMDVM_M17_EOT;
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::memcpy(buffer + 3U, data + 1U, length - 1U);
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break;
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default:
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return false;
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7
Sync.cpp
7
Sync.cpp
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@ -99,3 +99,10 @@ void CSync::addM17StreamSync(unsigned char* data)
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::memcpy(data, M17_STREAM_SYNC_BYTES, M17_SYNC_LENGTH_BYTES);
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}
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void CSync::addM17EOTSync(unsigned char* data)
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{
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assert(data != NULL);
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::memcpy(data, M17_EOT_SYNC_BYTES, M17_SYNC_LENGTH_BYTES);
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}
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1
Sync.h
1
Sync.h
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@ -35,6 +35,7 @@ public:
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static void addM17LinkSetupSync(unsigned char* data);
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static void addM17StreamSync(unsigned char* data);
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static void addM17EOTSync(unsigned char* data);
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private:
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};
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