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267 lines
10 KiB
267 lines
10 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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* @derivedfrom MMDVMHost (https://github.com/g4klx/MMDVMHost)
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* @license GPLv2 License (https://opensource.org/licenses/GPL-2.0)
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*
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* Copyright (C) 2016,2017 Jonathan Naylor, G4KLX
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* Copyright (C) 2017-2024 Bryan Biedenkapp, N2PLL
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*
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*/
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#if !defined(__P25_CONTROL_H__)
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#define __P25_CONTROL_H__
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#include "Defines.h"
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#include "common/p25/NID.h"
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#include "common/lookups/RSSIInterpolator.h"
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#include "common/lookups/IdenTableLookup.h"
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#include "common/lookups/RadioIdLookup.h"
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#include "common/lookups/TalkgroupRulesLookup.h"
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#include "common/p25/SiteData.h"
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#include "common/RingBuffer.h"
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#include "common/StopWatch.h"
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#include "common/Timer.h"
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#include "common/yaml/Yaml.h"
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#include "p25/packet/Data.h"
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#include "p25/packet/Voice.h"
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#include "p25/packet/ControlSignaling.h"
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#include "network/Network.h"
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#include "p25/lookups/P25AffiliationLookup.h"
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#include "modem/Modem.h"
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#include <cstdio>
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#include <vector>
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#include <unordered_map>
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#include <random>
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namespace p25
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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 Voice; }
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namespace packet { class HOST_SW_API Data; }
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namespace packet { class HOST_SW_API Trunk; }
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namespace lookups { class HOST_SW_API P25AffiliationLookup; }
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// ---------------------------------------------------------------------------
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// Class Declaration
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// This class implements core logic for handling P25.
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// ---------------------------------------------------------------------------
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class HOST_SW_API Control {
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public:
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/// <summary>Initializes a new instance of the Control class.</summary>
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Control(bool authoritative, uint32_t nac, uint32_t callHang, uint32_t queueSize, modem::Modem* modem, network::Network* network,
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uint32_t timeout, uint32_t tgHang, bool duplex, ::lookups::ChannelLookup* chLookup, ::lookups::RadioIdLookup* ridLookup,
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::lookups::TalkgroupRulesLookup* tidLookup, ::lookups::IdenTableLookup* idenTable, ::lookups::RSSIInterpolator* rssiMapper,
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bool dumpPDUData, bool repeatPDU, bool dumpTSBKData, bool debug, bool verbose);
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/// <summary>Finalizes a instance of the Control class.</summary>
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~Control();
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/// <summary>Resets the data states for the RF interface.</summary>
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void reset();
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/// <summary>Helper to set P25 configuration options.</summary>
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void setOptions(yaml::Node& conf, bool supervisor, const std::string cwCallsign, const ::lookups::VoiceChData controlChData,
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uint32_t netId, uint32_t sysId, uint8_t rfssId, uint8_t siteId, uint8_t channelId, uint32_t channelNo, bool printOptions);
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/// <summary>Gets a flag indicating whether the P25 control channel is running.</summary>
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bool getCCRunning() const { return m_ccRunning; }
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/// <summary>Sets a flag indicating whether the P25 control channel is running.</summary>
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void setCCRunning(bool ccRunning) { m_ccPrevRunning = m_ccRunning; m_ccRunning = ccRunning; }
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/// <summary>Gets a flag indicating whether the P25 control channel is running.</summary>
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bool getCCHalted() const { return m_ccHalted; }
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/// <summary>Sets a flag indicating whether the P25 control channel is halted.</summary>
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void setCCHalted(bool ccHalted) { m_ccHalted = ccHalted; }
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/// <summary>Process a data frame from the RF interface.</summary>
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bool processFrame(uint8_t* data, uint32_t len);
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/// <summary>Get the frame data length for the next frame in the data ring buffer.</summary>
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uint32_t peekFrameLength();
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/// <summary>Get frame data from data ring buffer.</summary>
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uint32_t getFrame(uint8_t* data);
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/// <summary>Helper to write end of voice call frame data.</summary>
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bool writeRF_VoiceEnd();
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/// <summary>Updates the processor.</summary>
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void clock();
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/// <summary>Updates the adj. site tables and affiliations.</summary>
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void clockSiteData(uint32_t ms);
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/// <summary>Sets a flag indicating whether P25 has supervisory functions and can send permit TG to voice channels.</summary>
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void setSupervisor(bool supervisor) { m_supervisor = supervisor; }
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/// <summary>Permits a TGID on a non-authoritative host.</summary>
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void permittedTG(uint32_t dstId, bool dataPermit = false);
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/// <summary>Grants a TGID on a non-authoritative host.</summary>
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void grantTG(uint32_t srcId, uint32_t dstId, bool grp);
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/// <summary>Releases a granted TG.</summary>
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void releaseGrantTG(uint32_t dstId);
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/// <summary>Touches a granted TG to keep a channel grant alive.</summary>
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void touchGrantTG(uint32_t dstId);
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/// <summary>Gets instance of the NID class.</summary>
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NID nid() { return m_nid; }
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/// <summary>Gets instance of the ControlSignaling class.</summary>
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packet::ControlSignaling* control() { return m_control; }
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/// <summary>Gets instance of the P25AffiliationLookup class.</summary>
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lookups::P25AffiliationLookup affiliations() { return m_affiliations; }
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/// <summary>Flag indicating whether the processor or is busy or not.</summary>
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bool isBusy() const;
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/// <summary>Flag indicating whether P25 debug is enabled or not.</summary>
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bool getDebug() const { return m_debug; };
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/// <summary>Flag indicating whether P25 verbosity is enabled or not.</summary>
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bool getVerbose() const { return m_verbose; };
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/// <summary>Helper to change the debug and verbose state.</summary>
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void setDebugVerbose(bool debug, bool verbose);
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/// <summary>Helper to get the last transmitted destination ID.</summary>
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uint32_t getLastDstId() const;
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/// <summary>Helper to get the last transmitted source ID.</summary>
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uint32_t getLastSrcId() const;
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private:
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friend class packet::Voice;
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packet::Voice* m_voice;
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friend class packet::Data;
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packet::Data* m_data;
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friend class packet::ControlSignaling;
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packet::ControlSignaling* m_control;
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friend class lookups::P25AffiliationLookup;
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bool m_authoritative;
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bool m_supervisor;
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uint32_t m_nac;
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uint32_t m_txNAC;
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uint32_t m_timeout;
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modem::Modem* m_modem;
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network::Network* m_network;
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bool m_inhibitUnauth;
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bool m_legacyGroupGrnt;
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bool m_legacyGroupReg;
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bool m_duplex;
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bool m_enableControl;
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bool m_dedicatedControl;
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bool m_voiceOnControl;
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bool m_controlOnly;
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bool m_ackTSBKRequests;
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bool m_disableNetworkGrant;
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bool m_disableNetworkHDU;
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bool m_allowExplicitSourceId;
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bool m_convNetGrantDemand;
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bool m_sndcpSupport;
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::lookups::IdenTableLookup* m_idenTable;
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::lookups::RadioIdLookup* m_ridLookup;
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::lookups::TalkgroupRulesLookup* m_tidLookup;
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lookups::P25AffiliationLookup m_affiliations;
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::lookups::VoiceChData m_controlChData;
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::lookups::IdenTable m_idenEntry;
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RingBuffer<uint8_t> m_txImmQueue;
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RingBuffer<uint8_t> m_txQueue;
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RPT_RF_STATE m_rfState;
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uint32_t m_rfLastDstId;
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uint32_t m_rfLastSrcId;
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RPT_NET_STATE m_netState;
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uint32_t m_netLastDstId;
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uint32_t m_netLastSrcId;
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uint32_t m_permittedDstId;
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bool m_tailOnIdle;
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bool m_ccRunning;
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bool m_ccPrevRunning;
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bool m_ccHalted;
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Timer m_rfTimeout;
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Timer m_rfTGHang;
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Timer m_rfLossWatchdog;
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Timer m_netTimeout;
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Timer m_netTGHang;
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Timer m_networkWatchdog;
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Timer m_adjSiteUpdate;
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Timer m_ccPacketInterval;
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StopWatch m_interval;
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uint32_t m_hangCount;
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uint32_t m_tduPreambleCount;
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uint8_t m_frameLossCnt;
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uint8_t m_frameLossThreshold;
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uint8_t m_ccFrameCnt;
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uint8_t m_ccSeq;
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std::mt19937 m_random;
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uint8_t* m_llaK;
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uint8_t* m_llaRS;
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uint8_t* m_llaCRS;
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uint8_t* m_llaKS;
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NID m_nid;
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SiteData m_siteData;
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::lookups::RSSIInterpolator* m_rssiMapper;
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uint8_t m_rssi;
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uint8_t m_maxRSSI;
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uint8_t m_minRSSI;
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uint32_t m_aveRSSI;
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uint32_t m_rssiCount;
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bool m_notifyCC;
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bool m_verbose;
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bool m_debug;
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/// <summary>Add data frame to the data ring buffer.</summary>
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void addFrame(const uint8_t* data, uint32_t length, bool net = false, bool imm = false);
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/// <summary>Process a data frames from the network.</summary>
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void processNetwork();
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/// <summary>Helper to process loss of frame stream from modem.</summary>
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void processFrameLoss();
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/// <summary>Helper to send a REST API request to the CC to release a channel grant at the end of a call.</summary>
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void notifyCC_ReleaseGrant(uint32_t dstId);
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/// <summary>Helper to send a REST API request to the CC to "touch" a channel grant to refresh grant timers.</summary>
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void notifyCC_TouchGrant(uint32_t dstId);
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/// <summary>Helper to write control channel frame data.</summary>
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bool writeRF_ControlData();
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/// <summary>Helper to write end of control channel frame data.</summary>
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bool writeRF_ControlEnd();
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/// <summary>Helper to write data nulls.</summary>
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void writeRF_Nulls();
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/// <summary>Helper to write TDU preamble packet burst.</summary>
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void writeRF_Preamble(uint32_t preambleCount = 0, bool force = false);
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/// <summary>Helper to write a P25 TDU packet.</summary>
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void writeRF_TDU(bool noNetwork);
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/// <summary>Helper to setup and generate LLA AM1 parameters.</summary>
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void generateLLA_AM1_Parameters();
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};
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} // namespace p25
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#endif // __P25_CONTROL_H__
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