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dvmhost/modem/Modem.h

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/**
* Digital Voice Modem - Host Software
* GPLv2 Open Source. Use is subject to license terms.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* @package DVM / Host Software
*
*/
//
// Based on code from the MMDVMHost project. (https://github.com/g4klx/MMDVMHost)
// Licensed under the GPLv2 License (https://opensource.org/licenses/GPL-2.0)
//
/*
* Copyright (C) 2011-2021 by Jonathan Naylor G4KLX
* Copyright (C) 2017-2021 by Bryan Biedenkapp N2PLL
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#if !defined(__MODEM_H__)
#define __MODEM_H__
#include "Defines.h"
#include "modem/port/IModemPort.h"
#include "RingBuffer.h"
#include "Timer.h"
#include <string>
#include <functional>
#define MODEM_VERSION_STR "%.*s, Modem protocol: %u"
#define MODEM_UNSUPPORTED_STR "Modem protocol: %u, unsupported! Stopping."
#define NULL_MODEM "null"
#define MODEM_OC_PORT_HANDLER bool(modem::Modem* modem)
#define MODEM_OC_PORT_HANDLER_BIND(funcAddr, classInstance) std::bind(&funcAddr, classInstance, std::placeholders::_1)
#define MODEM_RESP_HANDLER bool(modem::Modem* modem, uint32_t ms, modem::RESP_TYPE_DVM rspType, bool rspDblLen, const uint8_t* buffer, uint16_t len)
#define MODEM_RESP_HANDLER_BIND(funcAddr, classInstance) std::bind(&funcAddr, classInstance, std::placeholders::_1, std::placeholders::_2, \
std::placeholders::_3, std::placeholders::_4, std::placeholders::_5, std::placeholders::_6)
const uint8_t PROTOCOL_VERSION = 2U;
// ---------------------------------------------------------------------------
// Class Prototypes
// ---------------------------------------------------------------------------
class HOST_SW_API HostCal;
namespace modem
{
// ---------------------------------------------------------------------------
// Constants
// ---------------------------------------------------------------------------
enum RESP_TYPE_DVM {
RTM_OK,
RTM_TIMEOUT,
RTM_ERROR
};
enum DVM_STATE {
STATE_IDLE = 0U,
// DMR
STATE_DMR = 1U,
// Project 25
STATE_P25 = 2U,
// CW
STATE_CW = 10U,
// Symbol Tests
STATE_DMR_LEVELA = 70U,
STATE_DMR_LEVELB = 71U,
STATE_DMR_LEVELC = 72U,
STATE_DMR_LEVELD = 73U,
STATE_P25_LEVELA = 74U,
STATE_P25_LEVELB = 75U,
STATE_P25_LEVELC = 77U,
STATE_P25_LEVELD = 78U,
// Calibration States
STATE_P25_CAL_1K = 92U,
STATE_DMR_DMO_CAL_1K = 93U,
STATE_DMR_CAL_1K = 94U,
STATE_LF_CAL = 95U,
STATE_RSSI_CAL = 96U,
STATE_P25_CAL = 97U,
STATE_DMR_CAL = 98U
};
enum DVM_COMMANDS {
CMD_GET_VERSION = 0x00U,
CMD_GET_STATUS = 0x01U,
CMD_SET_CONFIG = 0x02U,
CMD_SET_MODE = 0x03U,
CMD_SET_SYMLVLADJ = 0x04U,
CMD_SET_RXLEVEL = 0x05U,
CMD_CAL_DATA = 0x08U,
CMD_RSSI_DATA = 0x09U,
CMD_SEND_CWID = 0x0AU,
CMD_DMR_DATA1 = 0x18U,
CMD_DMR_LOST1 = 0x19U,
CMD_DMR_DATA2 = 0x1AU,
CMD_DMR_LOST2 = 0x1BU,
CMD_DMR_SHORTLC = 0x1CU,
CMD_DMR_START = 0x1DU,
CMD_DMR_ABORT = 0x1EU,
CMD_P25_DATA = 0x31U,
CMD_P25_LOST = 0x32U,
CMD_P25_CLEAR = 0x33U,
CMD_ACK = 0x70U,
CMD_NAK = 0x7FU,
CMD_DEBUG1 = 0xF1U,
CMD_DEBUG2 = 0xF2U,
CMD_DEBUG3 = 0xF3U,
CMD_DEBUG4 = 0xF4U,
CMD_DEBUG5 = 0xF5U,
CMD_DEBUG_DUMP = 0xFAU,
};
enum CMD_REASON_CODE {
RSN_OK = 0U,
RSN_NAK = 1U,
RSN_ILLEGAL_LENGTH = 2U,
RSN_INVALID_REQUEST = 4U,
RSN_RINGBUFF_FULL = 8U,
RSN_INVALID_FDMA_PREAMBLE = 10U,
RSN_INVALID_MODE = 11U,
RSN_INVALID_DMR_CC = 12U,
RSN_INVALID_DMR_SLOT = 13U,
RSN_INVALID_DMR_START = 14U,
RSN_INVALID_DMR_RX_DELAY = 15U,
RSN_INVALID_P25_CORR_COUNT = 16U,
RSN_DMR_DISABLED = 63U,
RSN_P25_DISABLED = 64U,
};
const uint8_t DVM_FRAME_START = 0xFEU;
const uint8_t MAX_FDMA_PREAMBLE = 255U;
const uint32_t MAX_RESPONSES = 30U;
const uint32_t BUFFER_LENGTH = 2000U;
const uint32_t MAX_ADC_OVERFLOW = 128U;
const uint32_t MAX_DAC_OVERFLOW = 128U;
// ---------------------------------------------------------------------------
// Class Declaration
// Implements the core interface to the modem hardware.
// ---------------------------------------------------------------------------
class HOST_SW_API Modem {
public:
/// <summary>Initializes a new instance of the Modem class.</summary>
Modem(port::IModemPort* port, bool duplex, bool rxInvert, bool txInvert, bool pttInvert, bool dcBlocker,
bool cosLockout, uint8_t fdmaPreamble, uint8_t dmrRxDelay, uint8_t p25CorrCount, uint8_t packetPlayoutTime, bool disableOFlowReset, bool trace, bool debug);
/// <summary>Finalizes a instance of the Modem class.</summary>
~Modem();
/// <summary>Sets the RF DC offset parameters.</summary>
void setDCOffsetParams(int txDCOffset, int rxDCOffset);
/// <summary>Sets the enabled modes.</summary>
void setModeParams(bool dmrEnabled, bool p25Enabled);
/// <summary>Sets the RF deviation levels.</summary>
void setLevels(float rxLevel, float cwIdTXLevel, float dmrTXLevel, float p25TXLevel);
/// <summary>Sets the symbol adjustment levels.</summary>
void setSymbolAdjust(int dmrSymLevel3Adj, int dmrSymLevel1Adj, int p25SymLevel3Adj, int p25SymLevel1Adj);
/// <summary>Sets the DMR color code.</summary>
void setDMRColorCode(uint32_t colorCode);
/// <summary>Sets the P25 NAC.</summary>
void setP25NAC(uint32_t nac);
/// <summary>Sets the RF receive deviation levels.</summary>
void setRXLevel(float rxLevel);
/// <summary>Sets a custom modem response handler.</summary>
/// <remarks>If the response handler returns true, processing will stop, otherwise it will continue.</remarks>
void setResponseHandler(std::function<MODEM_RESP_HANDLER> handler);
/// <summary>Sets a custom modem open port handler.</summary>
/// <remarks>If the open handler is set, it is the responsibility of the handler to complete air interface
/// initialization (i.e. write configuration, etc).</remarks>
void setOpenHandler(std::function<MODEM_OC_PORT_HANDLER> handler);
/// <summary>Sets a custom modem close port handler.</summary>
void setCloseHandler(std::function<MODEM_OC_PORT_HANDLER> handler);
/// <summary>Opens connection to the air interface modem.</summary>
bool open();
/// <summary>Updates the modem by the passed number of milliseconds.</summary>
void clock(uint32_t ms);
/// <summary>Closes connection to the air interface modem.</summary>
void close();
/// <summary>Reads DMR Slot 1 frame data from the DMR Slot 1 ring buffer.</summary>
uint32_t readDMRData1(uint8_t* data);
/// <summary>Reads DMR Slot 2 frame data from the DMR Slot 1 ring buffer.</summary>
uint32_t readDMRData2(uint8_t* data);
/// <summary>Reads P25 frame data from the P25 ring buffer.</summary>
uint32_t readP25Data(uint8_t* data);
/// <summary>Helper to test if the DMR Slot 1 ring buffer has free space.</summary>
bool hasDMRSpace1() const;
/// <summary>Helper to test if the DMR Slot 2 ring buffer has free space.</summary>
bool hasDMRSpace2() const;
/// <summary>Helper to test if the P25 ring buffer has free space.</summary>
bool hasP25Space() const;
/// <summary>Flag indicating whether or not the air interface modem is transmitting.</summary>
bool hasTX() const;
/// <summary>Flag indicating whether or not the air interface modem has carrier detect.</summary>
bool hasCD() const;
/// <summary>Flag indicating whether or not the air interface modem is currently locked out.</summary>
bool hasLockout() const;
/// <summary>Flag indicating whether or not the air interface modem is currently in an error condition.</summary>
bool hasError() const;
/// <summary>Clears any buffered DMR Slot 1 frame data to be sent to the air interface modem.</summary>
void clearDMRData1();
/// <summary>Clears any buffered DMR Slot 2 frame data to be sent to the air interface modem.</summary>
void clearDMRData2();
/// <summary>Clears any buffered P25 frame data to be sent to the air interface modem.</summary>
void clearP25Data();
/// <summary>Internal helper to inject DMR Slot 1 frame data as if it came from the air interface modem.</summary>
void injectDMRData1(const uint8_t* data, uint32_t length);
/// <summary>Internal helper to inject DMR Slot 2 frame data as if it came from the air interface modem.</summary>
void injectDMRData2(const uint8_t* data, uint32_t length);
/// <summary>Internal helper to inject P25 frame data as if it came from the air interface modem.</summary>
void injectP25Data(const uint8_t* data, uint32_t length);
/// <summary>Writes DMR Slot 1 frame data to the DMR Slot 1 ring buffer.</summary>
bool writeDMRData1(const uint8_t* data, uint32_t length);
/// <summary>Writes DMR Slot 2 frame data to the DMR Slot 2 ring buffer.</summary>
bool writeDMRData2(const uint8_t* data, uint32_t length);
/// <summary>Writes P25 frame data to the P25 ring buffer.</summary>
bool writeP25Data(const uint8_t* data, uint32_t length);
/// <summary>Triggers the start of DMR transmit.</summary>
bool writeDMRStart(bool tx);
/// <summary>Writes a DMR short LC to the air interface modem.</summary>
bool writeDMRShortLC(const uint8_t* lc);
/// <summary>Writes a DMR abort message for the given slot to the air interface modem.</summary>
bool writeDMRAbort(uint32_t slotNo);
/// <summary>Writes raw data to the air interface modem.</summary>
int write(const uint8_t* data, uint32_t length);
/// <summary>Gets the current operating state for the air interface modem.</summary>
DVM_STATE getState() const;
/// <summary>Sets the current operating state for the air interface modem.</summary>
bool setState(DVM_STATE state);
/// <summary>Transmits the given string as CW morse.</summary>
bool sendCWId(const std::string& callsign);
private:
friend class ::HostCal;
port::IModemPort* m_port;
uint32_t m_dmrColorCode;
uint32_t m_p25NAC;
bool m_duplex;
bool m_rxInvert;
bool m_txInvert;
bool m_pttInvert;
bool m_dcBlocker;
bool m_cosLockout;
uint8_t m_fdmaPreamble;
uint8_t m_dmrRxDelay;
uint8_t m_p25CorrCount;
float m_rxLevel;
float m_cwIdTXLevel;
float m_dmrTXLevel;
float m_p25TXLevel;
bool m_disableOFlowReset;
bool m_dmrEnabled;
bool m_p25Enabled;
int m_rxDCOffset;
int m_txDCOffset;
int m_dmrSymLevel3Adj;
int m_dmrSymLevel1Adj;
int m_p25SymLevel3Adj;
int m_p25SymLevel1Adj;
uint32_t m_adcOverFlowCount;
uint32_t m_dacOverFlowCount;
DVM_STATE m_modemState;
uint8_t* m_buffer;
uint16_t m_length;
bool m_rspDoubleLength;
DVM_COMMANDS m_rspType;
std::function<MODEM_OC_PORT_HANDLER> m_openPortHandler;
std::function<MODEM_OC_PORT_HANDLER> m_closePortHandler;
std::function<MODEM_RESP_HANDLER> m_rspHandler;
RingBuffer<uint8_t> m_rxDMRData1;
RingBuffer<uint8_t> m_rxDMRData2;
RingBuffer<uint8_t> m_txDMRData1;
RingBuffer<uint8_t> m_txDMRData2;
RingBuffer<uint8_t> m_rxP25Data;
RingBuffer<uint8_t> m_txP25Data;
Timer m_statusTimer;
Timer m_inactivityTimer;
uint32_t m_dmrSpace1;
uint32_t m_dmrSpace2;
uint32_t m_p25Space;
bool m_tx;
bool m_cd;
bool m_lockout;
bool m_error;
/// <summary>Retrieve the air interface modem version.</summary>
bool getFirmwareVersion();
/// <summary>Retrieve the current status from the air interface modem.</summary>
bool getStatus();
/// <summary>Write configuration to the air interface modem.</summary>
bool writeConfig();
/// <summary>Write symbol level adjustments to the air interface modem.</summary>
bool writeSymbolAdjust();
/// <summary></summary>
void printDebug(const uint8_t* buffer, uint16_t len);
/// <summary></summary>
RESP_TYPE_DVM getResponse();
public:
/// <summary>Flag indicating if modem trace is enabled.</summary>
__READONLY_PROPERTY(bool, trace, Trace);
/// <summary>Flag indicating if modem debugging is enabled.</summary>
__READONLY_PROPERTY(bool, debug, Debug);
/// <summary></summary>
__READONLY_PROPERTY(Timer, playoutTimer, PlayoutTimer);
};
} // namespace modem
#endif // __MODEM_H__
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