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81 lines
2.7 KiB
81 lines
2.7 KiB
/**
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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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// Based on code from the MMDVMHost project. (https://github.com/g4klx/MMDVMHost)
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// Licensed under the GPLv2 License (https://opensource.org/licenses/GPL-2.0)
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//
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/*
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* Copyright (C) 2015,2016 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 "Defines.h"
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#include "dmr/DMRDefines.h"
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#include "dmr/Sync.h"
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using namespace dmr;
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#include <cstdio>
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#include <cassert>
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#include <cstring>
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// ---------------------------------------------------------------------------
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// Static Class Members
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// ---------------------------------------------------------------------------
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/// <summary>
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/// Helper to append DMR data sync bytes to the passed buffer.
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/// </summary>
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/// <param name="data">Buffer to append sync bytes to.</param>
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/// <param name="duplex">Flag indicating whether this is duplex operation.</param>
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void Sync::addDMRDataSync(uint8_t* data, bool duplex)
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{
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assert(data != nullptr);
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if (duplex) {
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for (uint32_t i = 0U; i < 7U; i++)
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data[i + 13U] = (data[i + 13U] & ~SYNC_MASK[i]) | BS_SOURCED_DATA_SYNC[i];
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}
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else {
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for (uint32_t i = 0U; i < 7U; i++)
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data[i + 13U] = (data[i + 13U] & ~SYNC_MASK[i]) | MS_SOURCED_DATA_SYNC[i];
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}
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}
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/// <summary>
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/// Helper to append DMR voice sync bytes to the passed buffer.
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/// </summary>
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/// <param name="data">Buffer to append sync bytes to.</param>
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/// <param name="duplex">Flag indicating whether this is duplex operation.</param>
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void Sync::addDMRAudioSync(uint8_t* data, bool duplex)
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{
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assert(data != nullptr);
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if (duplex) {
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for (uint32_t i = 0U; i < 7U; i++)
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data[i + 13U] = (data[i + 13U] & ~SYNC_MASK[i]) | BS_SOURCED_AUDIO_SYNC[i];
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}
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else {
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for (uint32_t i = 0U; i < 7U; i++)
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data[i + 13U] = (data[i + 13U] & ~SYNC_MASK[i]) | MS_SOURCED_AUDIO_SYNC[i];
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}
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}
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