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134 lines
4.4 KiB
134 lines
4.4 KiB
/**
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* Digital Voice Modem - DSP Firmware (Hotspot)
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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 / DSP Firmware (Hotspot)
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*
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*/
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//
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// Based on code from the MMDVM_HS project. (https://github.com/juribeparada/MMDVM_HS)
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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) 2015,2016,2017 by Jonathan Naylor G4KLX
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* Copyright (C) 2016 by Colin Durbridge G4EML
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* Copyright (C) 2017 by Andy Uribe CA6JAU
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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(__DMR_TX_H__)
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#define __DMR_TX_H__
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#include "Defines.h"
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#include "dmr/DMRDefines.h"
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#include "SerialBuffer.h"
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namespace dmr
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{
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// ---------------------------------------------------------------------------
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// Constants
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// ---------------------------------------------------------------------------
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enum DMRTXSTATE {
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DMRTXSTATE_IDLE,
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DMRTXSTATE_SLOT1,
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DMRTXSTATE_CACH1,
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DMRTXSTATE_SLOT2,
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DMRTXSTATE_CACH2,
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DMRTXSTATE_CAL
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};
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// ---------------------------------------------------------------------------
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// Class Declaration
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// Implements receiver logic for duplex DMR mode operation.
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// ---------------------------------------------------------------------------
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class DSP_FW_API DMRTX {
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public:
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/// <summary>Initializes a new instance of the DMRTX class.</summary>
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DMRTX();
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/// <summary>Process local buffer and transmit on the air interface.</summary>
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void process();
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/// <summary>Write slot 1 data to the local buffer.</summary>
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uint8_t writeData1(const uint8_t* data, uint8_t length);
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/// <summary>Write slot 2 data to the local buffer.</summary>
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uint8_t writeData2(const uint8_t* data, uint8_t length);
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/// <summary>Write short LC data to the local buffer.</summary>
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uint8_t writeShortLC(const uint8_t* data, uint8_t length);
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/// <summary>Write abort data to the local buffer.</summary>
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uint8_t writeAbort(const uint8_t* data, uint8_t length);
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/// <summary>Helper to set the start state for Tx.</summary>
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void setStart(bool start);
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/// <summary>Helper to set the calibration state for Tx.</summary>
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void setCal(bool start);
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/// <summary>Helper to get how much space the slot 1 ring buffer has for samples.</summary>
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uint8_t getSpace1() const;
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/// <summary>Helper to get how much space the slot 2 ring buffer has for samples.</summary>
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uint8_t getSpace2() const;
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/// <summary>Sets the DMR color code.</summary>
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void setColorCode(uint8_t colorCode);
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/// <summary>Helper to reset data values to defaults for slot 1 FIFO.</summary>
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void resetFifo1();
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/// <summary>Helper to reset data values to defaults for slot 2 FIFO.</summary>
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void resetFifo2();
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/// <summary></summary>
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uint32_t getFrameCount();
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private:
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SerialBuffer m_fifo[2U];
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DMRTXSTATE m_state;
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uint8_t m_idle[DMR_FRAME_LENGTH_BYTES];
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uint8_t m_cachPtr;
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uint8_t m_shortLC[12U];
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uint8_t m_newShortLC[12U];
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uint8_t m_markBuffer[40U];
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uint8_t m_poBuffer[40U];
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uint16_t m_poLen;
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uint16_t m_poPtr;
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uint32_t m_frameCount;
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uint32_t m_abortCount[2U];
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bool m_abort[2U];
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uint8_t m_controlPrev;
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/// <summary></summary>
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void createData(uint8_t slotIndex);
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/// <summary></summary>
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void createCACH(uint8_t txSlotIndex, uint8_t rxSlotIndex);
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/// <summary></summary>
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void createCal();
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/// <summary></summary>
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void writeByte(uint8_t c, uint8_t control);
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};
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} // namespace dmr
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#endif // __DMR_TX_H__
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