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129 lines
5.1 KiB
129 lines
5.1 KiB
/**
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* Digital Voice Modem - Host Software
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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 / Host Software
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*
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*/
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//
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// Based on code from the MMDVMHost project. (https://github.com/g4klx/MMDVMHost)
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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) 2022 by Bryan Biedenkapp N2PLL
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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(__NXDN_PACKET_TRUNK_H__)
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#define __NXDN_PACKET_TRUNK_H__
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#include "Defines.h"
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#include "nxdn/Control.h"
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#include "nxdn/lc/RCCH.h"
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#include "network/BaseNetwork.h"
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#include <cstdio>
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#include <string>
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namespace nxdn
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{
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// ---------------------------------------------------------------------------
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// Class Prototypes
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// ---------------------------------------------------------------------------
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namespace packet { class HOST_SW_API Data; }
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namespace packet { class HOST_SW_API Voice; }
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class HOST_SW_API Control;
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namespace packet
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{
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// ---------------------------------------------------------------------------
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// Class Declaration
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// This class implements handling logic for NXDN control signalling packets.
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// ---------------------------------------------------------------------------
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class HOST_SW_API Trunk {
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public:
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/// <summary>Resets the data states for the RF interface.</summary>
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virtual void resetRF();
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/// <summary>Resets the data states for the network.</summary>
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virtual void resetNet();
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/// <summary>Process a data frame from the RF interface.</summary>
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virtual bool process(uint8_t fct, uint8_t option, uint8_t* data, uint32_t len);
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/// <summary>Process a data frame from the network.</summary>
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virtual bool processNetwork(uint8_t fct, uint8_t option, lc::RTCH& netLC, uint8_t* data, uint32_t len);
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/// <summary>Updates the processor by the passed number of milliseconds.</summary>
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void clock(uint32_t ms);
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protected:
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friend class nxdn::packet::Data;
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friend class nxdn::packet::Voice;
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friend class nxdn::Control;
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Control* m_nxdn;
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network::BaseNetwork* m_network;
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bool m_verifyAff;
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bool m_verifyReg;
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lc::RCCH m_rfLC;
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lc::RCCH m_netLC;
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uint16_t m_lastRejectId;
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bool m_dumpRCCH;
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bool m_verbose;
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bool m_debug;
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/// <summary>Initializes a new instance of the Trunk class.</summary>
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Trunk(Control* nxdn, network::BaseNetwork* network, bool dumpRCCHData, bool debug, bool verbose);
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/// <summary>Finalizes a instance of the Trunk class.</summary>
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virtual ~Trunk();
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/// <summary>Write data processed from RF to the network.</summary>
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void writeNetwork(const uint8_t* data, uint32_t len);
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/// <summary>Helper to write control channel packet data.</summary>
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void writeRF_ControlData(uint8_t frameCnt, uint8_t n, bool adjSS);
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/// <summary>Helper to write a single-block RCCH packet.</summary>
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void writeRF_Message(bool noNetwork, bool clearBeforeWrite = false);
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/// <summary>Helper to write a grant packet.</summary>
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bool writeRF_Message_Grant(bool grp, bool skip = false, bool net = false, bool skipNetCheck = false);
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/// <summary>Helper to write a deny packet.</summary>
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void writeRF_Message_Deny(uint8_t reason, uint8_t service);
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/// <summary>Helper to write a group registration response packet.</summary>
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bool writeRF_Message_Grp_Reg_Rsp(uint32_t srcId, uint32_t dstId);
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/// <summary>Helper to write a unit registration response packet.</summary>
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void writeRF_Message_U_Reg_Rsp(uint32_t srcId);
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/// <summary>Helper to write a CC SITE_INFO broadcast packet on the RF interface.</summary>
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void writeRF_CC_Message_Site_Info();
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/// <summary>Helper to write a CC SRV_INFO broadcast packet on the RF interface.</summary>
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void writeRF_CC_Message_Service_Info();
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/// <summary>Helper to add the post field bits on NXDN frame data.</summary>
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void addPostBits(uint8_t* data);
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};
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} // namespace packet
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} // namespace nxdn
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#endif // __NXDN_PACKET_TRUNK_H__
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