You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
130 lines
4.7 KiB
130 lines
4.7 KiB
/**
|
|
* 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) 2016,2017 by Jonathan Naylor G4KLX
|
|
* Copyright (C) 2017-2022 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(__P25_DATA_PACKET_H__)
|
|
#define __P25_DATA_PACKET_H__
|
|
|
|
#include "Defines.h"
|
|
#include "p25/data/DataBlock.h"
|
|
#include "p25/data/DataHeader.h"
|
|
#include "p25/data/LowSpeedData.h"
|
|
#include "p25/lc/LC.h"
|
|
#include "p25/Control.h"
|
|
#include "network/BaseNetwork.h"
|
|
|
|
#include <cstdio>
|
|
#include <string>
|
|
#include <unordered_map>
|
|
|
|
namespace p25
|
|
{
|
|
// ---------------------------------------------------------------------------
|
|
// Class Prototypes
|
|
// ---------------------------------------------------------------------------
|
|
class HOST_SW_API Control;
|
|
|
|
// ---------------------------------------------------------------------------
|
|
// Class Declaration
|
|
// This class implements handling logic for P25 data packets.
|
|
// ---------------------------------------------------------------------------
|
|
|
|
class HOST_SW_API DataPacket {
|
|
public:
|
|
/// <summary>Resets the data states for the RF interface.</summary>
|
|
void resetRF();
|
|
|
|
/// <summary>Process a data frame from the RF interface.</summary>
|
|
bool process(uint8_t* data, uint32_t len);
|
|
/// <summary>Process a data frame from the network.</summary>
|
|
bool processNetwork(uint8_t* data, uint32_t len, lc::LC& control, data::LowSpeedData& lsd, uint8_t& duid);
|
|
|
|
/// <summary>Helper to check if a logical link ID has registered with data services.</summary>
|
|
bool hasLLIdFNEReg(uint32_t llId) const;
|
|
|
|
private:
|
|
friend class Control;
|
|
Control* m_p25;
|
|
|
|
network::BaseNetwork* m_network;
|
|
|
|
RPT_RF_STATE m_prevRfState;
|
|
|
|
data::DataBlock* m_rfData;
|
|
data::DataHeader m_rfDataHeader;
|
|
data::DataHeader m_rfSecondHeader;
|
|
bool m_rfUseSecondHeader;
|
|
uint8_t m_rfDataBlockCnt;
|
|
uint8_t* m_rfPDU;
|
|
uint32_t m_rfPDUCount;
|
|
uint32_t m_rfPDUBits;
|
|
|
|
data::DataBlock* m_netData;
|
|
data::DataHeader m_netDataHeader;
|
|
data::DataHeader m_netSecondHeader;
|
|
bool m_netUseSecondHeader;
|
|
uint32_t m_netDataOffset;
|
|
uint8_t m_netDataBlockCnt;
|
|
uint8_t* m_netPDU;
|
|
uint32_t m_netPDUCount;
|
|
|
|
uint8_t* m_pduUserData;
|
|
uint32_t m_pduUserDataLength;
|
|
|
|
std::unordered_map<uint32_t, ulong64_t> m_fneRegTable;
|
|
|
|
bool m_dumpPDUData;
|
|
bool m_repeatPDU;
|
|
|
|
bool m_verbose;
|
|
bool m_debug;
|
|
|
|
/// <summary>Initializes a new instance of the DataPacket class.</summary>
|
|
DataPacket(Control* p25, network::BaseNetwork* network, bool dumpPDUData, bool repeatPDU, bool debug, bool verbose);
|
|
/// <summary>Finalizes a instance of the DataPacket class.</summary>
|
|
~DataPacket();
|
|
|
|
/// <summary>Write data processed from RF to the network.</summary>
|
|
void writeNetworkRF(const uint8_t currentBlock, const uint8_t* data, uint32_t len);
|
|
|
|
/// <summary>Helper to write a P25 PDU packet.</summary>
|
|
void writeRF_PDU(const uint8_t* pdu, uint32_t bitLength, bool noNulls = false);
|
|
/// <summary>Helper to write a network P25 PDU packet.</summary>
|
|
void writeNet_PDU_Buffered();
|
|
/// <summary>Helper to re-write a received P25 PDU packet.</summary>
|
|
void writeRF_PDU_Buffered();
|
|
/// <summary>Helper to write a PDU registration response.</summary>
|
|
void writeRF_PDU_Reg_Response(uint8_t regType, uint32_t llId, ulong64_t ipAddr);
|
|
/// <summary>Helper to write a PDU acknowledge response.</summary>
|
|
void writeRF_PDU_Ack_Response(uint8_t ackClass, uint8_t ackType, uint32_t llId);
|
|
};
|
|
} // namespace p25
|
|
|
|
#endif // __P25_DATA_PACKET_H__
|