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114 lines
4.5 KiB
114 lines
4.5 KiB
// SPDX-License-Identifier: GPL-2.0-only
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/**
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* Digital Voice Modem - 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 / Modem Host Software
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* @license GPLv2 License (https://opensource.org/licenses/GPL-2.0)
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*
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* Copyright (C) 2022-2023 Bryan Biedenkapp, N2PLL
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*
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*/
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#if !defined(__NXDN_PACKET_CONTROL_SIGNALING_H__)
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#define __NXDN_PACKET_CONTROL_SIGNALING_H__
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#include "Defines.h"
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#include "common/nxdn/lc/RCCH.h"
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#include "nxdn/Control.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 RCCH packets.
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// ---------------------------------------------------------------------------
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class HOST_SW_API ControlSignaling {
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public:
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/// <summary>Process a data frame from the RF interface.</summary>
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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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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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uint8_t m_bcchCnt;
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uint8_t m_rcchGroupingCnt;
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uint8_t m_ccchPagingCnt;
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uint8_t m_ccchMultiCnt;
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uint8_t m_rcchIterateCnt;
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bool m_verifyAff;
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bool m_verifyReg;
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bool m_disableGrantSrcIdCheck;
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uint16_t m_lastRejectId;
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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 ControlSignaling class.</summary>
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ControlSignaling(Control* nxdn, bool debug, bool verbose);
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/// <summary>Finalizes a instance of the ControlSignaling class.</summary>
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~ControlSignaling();
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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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/*
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** Modem Frame Queuing
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*/
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/// <summary>Helper to write a immediate single-block RCCH packet.</summary>
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void writeRF_Message_Imm(lc::RCCH *rcch, bool noNetwork) { writeRF_Message(rcch, noNetwork, false, true); }
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/// <summary>Helper to write a single-block RCCH packet.</summary>
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void writeRF_Message(lc::RCCH* rcch, bool noNetwork, bool clearBeforeWrite = false, bool imm = false);
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/*
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** Control Signalling Logic
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*/
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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 grant packet.</summary>
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bool writeRF_Message_Grant(uint32_t srcId, uint32_t dstId, uint8_t serviceOptions, bool grp, bool net = false, bool skip = false, uint32_t chNo = 0U);
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/// <summary>Helper to write a deny packet.</summary>
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void writeRF_Message_Deny(uint32_t srcId, uint32_t dstId, 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, uint32_t locId);
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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, uint32_t locId);
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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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};
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} // namespace packet
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} // namespace nxdn
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#endif // __NXDN_PACKET_CONTROL_SIGNALING_H__
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