Bryan Biedenkapp
3 years ago
parent
6c24aa3c81
commit
8947135e8d
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/**
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* Digital Voice Modem - Host Software
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* GPLv2 Open Source. Use is subject to license terms.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* @package DVM / Host Software
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*
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*/
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/*
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* Copyright (C) 2022 by Jason-UWU
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* Copyright (C) 2022 by Bryan Biedenkapp N2PLL
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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 "Defines.h"
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#include "p25/lc/tsbk/OSP_TIME_DATE_ANN.h"
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#include "Log.h"
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#include "Utils.h"
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using namespace p25::lc::tsbk;
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using namespace p25::lc;
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using namespace p25;
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#include <cassert>
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#include <cmath>
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#include <chrono>
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#include <ctime>
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// ---------------------------------------------------------------------------
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// Public Class Members
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// ---------------------------------------------------------------------------
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/// <summary>
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/// Initializes a new instance of the OSP_TIME_DATE_ANN class.
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/// </summary>
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OSP_TIME_DATE_ANN::OSP_TIME_DATE_ANN() : TSBK()
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{
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m_lco = TSBK_OSP_TIME_DATE_ANN;
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}
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/// <summary>
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/// Decode a trunking signalling block.
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/// </summary>
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/// <param name="data"></param>
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/// <param name="rawTSBK"></param>
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/// <returns>True, if TSBK was decoded, otherwise false.</returns>
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bool OSP_TIME_DATE_ANN::decode(const uint8_t* data, bool rawTSBK)
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{
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assert(data != NULL);
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/* stub */
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return true;
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}
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/// <summary>
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/// Encode a trunking signalling block.
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/// </summary>
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/// <param name="data"></param>
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/// <param name="rawTSBK"></param>
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/// <param name="noTrellis"></param>
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void OSP_TIME_DATE_ANN::encode(uint8_t* data, bool rawTSBK, bool noTrellis)
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{
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assert(data != NULL);
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ulong64_t tsbkValue = 0U;
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std::chrono::system_clock::time_point now = std::chrono::system_clock::now();
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time_t tt = std::chrono::system_clock::to_time_t(now);
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tm local_tm = *gmtime(&tt);
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uint32_t tmM = (local_tm.tm_mon + 1);
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uint32_t tmY = (local_tm.tm_year - 100);
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uint32_t tmS = 0U;
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uint32_t i = local_tm.tm_sec;
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if (i > 59U) {
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tmS |= 59U;
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} else {
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tmS |= i;
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}
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#if DEBUG_P25_TSBK
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LogDebug(LOG_P25, "TSBK_OSP_TIME_DATE_ANN, tmM = %u / %u, tmY = %u / %u", local_tm.tm_mon, tmM, local_tm.tm_year, tmY);
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#endif
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uint8_t lto = fabs(m_siteData.lto()) * 2U; // this will cause a bug for half-hour timezone intervals...
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// mark the LTO as valid if its non-zero
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bool vl = false;
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if (lto > 0U)
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vl = true;
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tsbkValue = 0xC0U + // VD and VT flags set
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(vl ? 0x20U : 0x00U) + // Valid LTO Flag
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((lto >> 8) & 0x0F); // LTO MSB (Upper 4-bits)
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tsbkValue = (tsbkValue << 8) + (lto & 0xFFU); // LTO LSB
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// Date
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tsbkValue = (tsbkValue << 4) + (tmM & 0x0FU); // Month
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tsbkValue = (tsbkValue << 5) + (local_tm.tm_mday & 0x1FU); // Day of Month
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tsbkValue = (tsbkValue << 13) + (tmY & 0x1FFFU); // Year
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tsbkValue = (tsbkValue << 2); // Reserved
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// Time
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tsbkValue = (tsbkValue << 5) + (local_tm.tm_hour & 0x1FU); // Hour
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tsbkValue = (tsbkValue << 6) + (local_tm.tm_min & 0x3FU); // Minute
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tsbkValue = (tsbkValue << 6) + (local_tm.tm_sec & 0x3FU); // Seconds
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tsbkValue = (tsbkValue << 7); // Reserved
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#if DEBUG_P25_TSBK
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LogDebug(LOG_P25, "TSBK_OSP_TIME_DATE_ANN, tmM = %u, tmMDAY = %u, tmY = %u, tmH = %u, tmMin = %u, tmS = %u", tmM, tmMDAY, tmY, tmH, tmMin, tmS);
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#endif
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std::unique_ptr<uint8_t[]> tsbk = TSBK::fromValue(tsbkValue);
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TSBK::encode(data, tsbk.get(), rawTSBK, noTrellis);
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}
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@ -0,0 +1,57 @@
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/**
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* Digital Voice Modem - Host Software
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* GPLv2 Open Source. Use is subject to license terms.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* @package DVM / Host Software
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*
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*/
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/*
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* Copyright (C) 2022 by Bryan Biedenkapp N2PLL
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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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#if !defined(__P25_LC_TSBK__OSP_TIME_DATE_ANN_H__)
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#define __P25_LC_TSBK__OSP_TIME_DATE_ANN_H__
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#include "Defines.h"
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#include "p25/lc/TSBK.h"
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namespace p25
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{
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namespace lc
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{
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namespace tsbk
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{
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// ---------------------------------------------------------------------------
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// Class Declaration
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// Implements TIME DATE ANN - Time and Date Announcement
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// ---------------------------------------------------------------------------
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class HOST_SW_API OSP_TIME_DATE_ANN : public TSBK {
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public:
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/// <summary>Initializes a new instance of the OSP_TIME_DATE_ANN class.</summary>
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OSP_TIME_DATE_ANN();
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/// <summary>Decode a trunking signalling block.</summary>
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virtual bool decode(const uint8_t* data, bool rawTSBK = false);
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/// <summary>Encode a trunking signalling block.</summary>
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virtual void encode(uint8_t* data, bool rawTSBK = false, bool noTrellis = false);
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};
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} // namespace tsbk
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} // namespace lc
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} // namespace p25
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#endif // __P25_LC_TSBK__OSP_TIME_DATE_ANN_H__
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