mirror of https://github.com/markqvist/MMDVM.git
66 lines
1.6 KiB
C++
66 lines
1.6 KiB
C++
/*
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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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#if !defined(DMRSLOTRX_H)
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#define DMRSLOTRX_H
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#include "Config.h"
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#include "DMRDefines.h"
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enum DMRSRXS {
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DMRSRXS_NONE,
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DMRSRXS_VOICE,
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DMRSRXS_DATA
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};
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class CDMRSlotRX {
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public:
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CDMRSlotRX(bool slot);
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void start();
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bool processSample(q15_t sample);
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void setColorCode(uint8_t colorCode);
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void reset();
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private:
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bool m_slot;
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uint32_t m_bitBuffer[DMR_RADIO_SYMBOL_LENGTH];
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q15_t m_buffer[900U];
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uint16_t m_bitPtr;
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uint16_t m_dataPtr;
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uint16_t m_syncPtr;
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uint16_t m_endPtr;
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q31_t m_maxCorr;
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q15_t m_centre;
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q15_t m_threshold;
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uint8_t m_control;
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uint8_t m_syncCount;
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uint8_t m_colorCode;
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uint8_t m_n;
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DMRSRXS m_state;
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void correlateSync(q15_t sample);
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void samplesToBits(uint16_t start, uint8_t count, uint8_t* buffer, uint16_t offset, q15_t centre, q15_t threshold);
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};
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#endif
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