mirror of https://github.com/markqvist/MMDVM.git
59 lines
1.5 KiB
C++
59 lines
1.5 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(P25RX_H)
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#define P25RX_H
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#include "Config.h"
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#include "P25Defines.h"
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enum P25RX_STATE {
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P25RXS_NONE,
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P25RXS_DATA
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};
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class CP25RX {
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public:
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CP25RX();
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void samples(const q15_t* samples, uint8_t length);
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void reset();
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private:
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uint32_t m_pll;
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bool m_prev;
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P25RX_STATE m_state;
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uint32_t m_symbolBuffer;
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uint64_t m_bitBuffer;
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q15_t m_symbols[P25_SYNC_LENGTH_SYMBOLS];
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uint8_t m_outBuffer[P25_LDU_FRAME_LENGTH_BYTES + 3U];
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uint8_t* m_buffer;
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uint16_t m_bufferPtr;
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uint16_t m_symbolPtr;
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uint16_t m_lostCount;
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q15_t m_centre;
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q15_t m_threshold;
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void processNone(q15_t sample);
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void processData(q15_t sample);
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};
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#endif
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