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371 lines
7.6 KiB
371 lines
7.6 KiB
/*
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* Copyright (C) 2011-2015,2018 by 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; either version 2 of the License, or
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* (at your option) any later version.
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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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "IcomController.h"
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#include "DStarDefines.h"
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#include "Timer.h"
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#include "Utils.h"
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#if defined(__WINDOWS__)
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#include <setupapi.h>
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#else
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#include <wx/dir.h>
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#endif
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const unsigned int MAX_RESPONSES = 30U;
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const unsigned int BUFFER_LENGTH = 200U;
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CIcomController::CIcomController(const wxString& port) :
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CModem(),
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m_port(port),
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m_serial(port, SERIAL_38400, true),
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m_buffer(NULL),
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m_txData(1000U),
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m_txCounter(0U),
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m_pktCounter(0U),
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m_txSpace(true)
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{
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wxASSERT(!port.IsEmpty());
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m_buffer = new unsigned char[BUFFER_LENGTH];
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}
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CIcomController::~CIcomController()
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{
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delete[] m_buffer;
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}
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bool CIcomController::start()
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{
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bool ret = m_serial.open();
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if (!ret)
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return false;
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Create();
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SetPriority(100U);
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Run();
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return true;
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}
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void* CIcomController::Entry()
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{
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wxLogMessage(wxT("Starting Icom Controller thread"));
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// Clock every 5ms-ish
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CTimer pollTimer(200U, 1U);
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pollTimer.start();
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while (!m_stopped) {
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// Poll the modem status every 100ms
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if (pollTimer.hasExpired()) {
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writePing();
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pollTimer.start();
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}
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unsigned int length;
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RESP_TYPE_ICOM type = getResponse(m_buffer, length);
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switch (type) {
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case RTI_TIMEOUT:
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break;
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case RTI_ERROR:
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wxLogMessage(wxT("Stopping Icom Controller thread"));
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return NULL;
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case RTI_HEADER: {
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// CUtils::dump(wxT("RTI_HEADER"), m_buffer, length);
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wxMutexLocker locker(m_mutex);
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unsigned char data[2U];
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data[0U] = DSMTT_HEADER;
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data[1U] = RADIO_HEADER_LENGTH_BYTES;
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m_rxData.addData(data, 2U);
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m_rxData.addData(m_buffer + 2U, RADIO_HEADER_LENGTH_BYTES);
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m_txSpace = true;
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}
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break;
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case RTI_DATA: {
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// CUtils::dump(wxT("RTI_DATA"), m_buffer, length);
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wxMutexLocker locker(m_mutex);
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unsigned char data[2U];
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data[0U] = DSMTT_DATA;
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data[1U] = DV_FRAME_LENGTH_BYTES;
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m_rxData.addData(data, 2U);
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m_rxData.addData(m_buffer + 4U, DV_FRAME_LENGTH_BYTES);
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m_txSpace = true;
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}
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break;
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case RTI_EOT: {
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// wxLogMessage(wxT("RTI_EOT"));
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wxMutexLocker locker(m_mutex);
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unsigned char data[2U];
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data[0U] = DSMTT_EOT;
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data[1U] = 0U;
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m_rxData.addData(data, 2U);
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m_txSpace = true;
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}
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break;
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case RTI_PONG:
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// wxLogMessage(wxT("RTI_PONG"));
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break;
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case RTI_HEADER_ACK:
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wxLogMessage(wxT("RTI_HEADER_ACK"));
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if (m_buffer[2U] == 0x00U)
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m_txSpace = true;
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break;
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case RTI_DATA_ACK:
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wxLogMessage(wxT("RTI_DATA_ACK"));
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if (m_buffer[3U] == 0x00U)
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m_txSpace = true;
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break;
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default:
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wxLogMessage(wxT("Unknown message, type: %02X"), m_buffer[1U]);
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CUtils::dump(wxT("Buffer dump"), m_buffer, length + 1U);
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break;
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}
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if (m_txSpace && !m_txData.isEmpty()) {
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m_txData.getData(m_buffer, 1U);
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unsigned int len = m_buffer[0U];
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m_txData.getData(m_buffer + 1U, len);
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CUtils::dump(wxT("Sending"), m_buffer, len + 1U);
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int ret = m_serial.write(m_buffer, len + 1U);
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if (ret != int(len + 1U))
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wxLogWarning(wxT("Error when writing to the Icom radio"));
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pollTimer.start();
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m_txSpace = false;
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}
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Sleep(5UL);
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pollTimer.clock();
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}
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m_serial.close();
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wxLogMessage(wxT("Stopping Icom Controller thread"));
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return NULL;
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}
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bool CIcomController::writeHeader(const CHeaderData& header)
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{
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bool ret = m_txData.hasSpace(43U);
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if (!ret) {
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wxLogWarning(wxT("No space to write the header"));
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return false;
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}
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unsigned char buffer[50U];
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buffer[0U] = 0x29U;
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buffer[1U] = 0x20U;
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::memset(buffer + 2U, ' ', RADIO_HEADER_LENGTH_BYTES);
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buffer[2U] = header.getFlag1();
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buffer[3U] = header.getFlag2();
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buffer[4U] = header.getFlag3();
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wxString rpt2 = header.getRptCall2();
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for (unsigned int i = 0U; i < rpt2.Len() && i < LONG_CALLSIGN_LENGTH; i++)
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buffer[i + 5U] = rpt2.GetChar(i);
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wxString rpt1 = header.getRptCall1();
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for (unsigned int i = 0U; i < rpt1.Len() && i < LONG_CALLSIGN_LENGTH; i++)
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buffer[i + 13U] = rpt1.GetChar(i);
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wxString your = header.getYourCall();
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for (unsigned int i = 0U; i < your.Len() && i < LONG_CALLSIGN_LENGTH; i++)
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buffer[i + 21U] = your.GetChar(i);
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wxString my1 = header.getMyCall1();
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for (unsigned int i = 0U; i < my1.Len() && i < LONG_CALLSIGN_LENGTH; i++)
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buffer[i + 29U] = my1.GetChar(i);
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wxString my2 = header.getMyCall2();
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for (unsigned int i = 0U; i < my2.Len() && i < SHORT_CALLSIGN_LENGTH; i++)
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buffer[i + 37U] = my2.GetChar(i);
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buffer[41U] = 0xFFU;
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m_txCounter = 0U;
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m_pktCounter = 0U;
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wxMutexLocker locker(m_mutex);
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m_txData.addData(buffer, 42U);
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m_txSpace = true;
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return true;
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}
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bool CIcomController::writeData(const unsigned char* data, unsigned int, bool end)
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{
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bool ret = m_txData.hasSpace(18U);
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if (!ret) {
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wxLogWarning(wxT("No space to write data"));
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return false;
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}
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unsigned char buffer[20U];
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if (end) {
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buffer[0U] = 0x10U;
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buffer[1U] = 0x22U;
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buffer[2U] = m_txCounter;
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buffer[3U] = m_pktCounter | 0x40U;
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::memcpy(buffer + 4U, END_PATTERN_BYTES, DV_FRAME_LENGTH_BYTES);
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buffer[16U] = 0xFFU;
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wxMutexLocker locker(m_mutex);
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m_txData.addData(buffer, 17U);
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return true;
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}
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buffer[0U] = 0x10U;
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buffer[1U] = 0x22U;
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buffer[2U] = m_txCounter;
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buffer[3U] = m_pktCounter;
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m_txCounter++;
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m_pktCounter++;
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if (::memcmp(buffer + VOICE_FRAME_LENGTH_BYTES, DATA_SYNC_BYTES, DATA_FRAME_LENGTH_BYTES) == 0 || m_pktCounter == 21U)
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m_pktCounter = 0U;
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::memcpy(buffer + 4U, data, DV_FRAME_LENGTH_BYTES);
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buffer[16U] = 0xFFU;
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wxMutexLocker locker(m_mutex);
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m_txData.addData(buffer, 17U);
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return true;
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}
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unsigned int CIcomController::getSpace()
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{
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return m_txData.freeSpace() / 18U;
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}
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bool CIcomController::isTXReady()
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{
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return m_txData.isEmpty();
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}
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wxString CIcomController::getPath() const
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{
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return wxEmptyString;
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}
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RESP_TYPE_ICOM CIcomController::getResponse(unsigned char *buffer, unsigned int& length)
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{
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// Get the start of the frame or nothing at all
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int ret = m_serial.read(buffer, 1U);
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if (ret < 0) {
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wxLogError(wxT("Error when reading from the Icom radio"));
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return RTI_ERROR;
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}
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if (ret == 0)
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return RTI_TIMEOUT;
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if (buffer[0U] == 0xFFU)
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return RTI_TIMEOUT;
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length = buffer[0U];
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if (length >= 100U) {
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wxLogError(wxT("Invalid data received from the Icom radio"));
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return RTI_ERROR;
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}
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unsigned int offset = 1U;
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while (offset <= length) {
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ret = m_serial.read(buffer + offset, length - offset);
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if (ret < 0) {
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wxLogError(wxT("Error when reading from the Icom radio"));
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return RTI_ERROR;
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}
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if (ret > 0)
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offset += ret;
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if (ret == 0)
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Sleep(5UL);
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}
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// CUtils::dump(wxT("Received"), buffer, length + 1U);
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switch (buffer[1U]) {
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case 0x03U:
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return RTI_PONG;
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case 0x10U:
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return RTI_HEADER;
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case 0x12U:
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if ((buffer[3U] & 0x40U) == 0x40U)
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return RTI_EOT;
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else
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return RTI_DATA;
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case 0x21U:
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return RTI_HEADER_ACK;
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case 0x23U:
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return RTI_DATA_ACK;
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default:
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return RTI_UNKNOWN;
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}
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}
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bool CIcomController::writePing()
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{
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return m_serial.write((unsigned char*)"\x02\x02\xFF", 3U) == 3;
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}
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