mirror of https://github.com/ShaYmez/xlxd.git
125 lines
3.8 KiB
C++
125 lines
3.8 KiB
C++
//
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// cdmrplusprotocol.h
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// xlxd
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//
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// Created by Jean-Luc Deltombe (LX3JL) on 10/01/2016.
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// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
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//
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// ----------------------------------------------------------------------------
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// This file is part of xlxd.
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//
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// xlxd 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 3 of the License, or
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// (at your option) any later version.
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//
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// xlxd 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
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// ----------------------------------------------------------------------------
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#ifndef cdmrplusprotocol_h
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#define cdmrplusprotocol_h
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#include "ctimepoint.h"
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#include "cprotocol.h"
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#include "cdvheaderpacket.h"
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#include "cdvframepacket.h"
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#include "cdvlastframepacket.h"
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////////////////////////////////////////////////////////////////////////////////////////
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// define
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// DMR Plus Module ID
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#define DMRPLUS_MODULE_ID 'B'
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////////////////////////////////////////////////////////////////////////////////////////
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// class
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class CDmrplusStreamCacheItem
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{
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public:
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CDmrplusStreamCacheItem() { m_uiSeqId = 0x77; }
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~CDmrplusStreamCacheItem() {}
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CDvHeaderPacket m_dvHeader;
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CDvFramePacket m_dvFrame0;
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CDvFramePacket m_dvFrame1;
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uint8 m_uiSeqId;
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};
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class CDmrplusProtocol : public CProtocol
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{
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public:
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// constructor
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CDmrplusProtocol() {};
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// destructor
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virtual ~CDmrplusProtocol() {};
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// initialization
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bool Init(void);
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// task
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void Task(void);
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protected:
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// queue helper
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void HandleQueue(void);
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void SendBufferToClients(const CBuffer &, uint8);
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// keepalive helpers
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void HandleKeepalives(void);
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// stream helpers
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bool OnDvHeaderPacketIn(CDvHeaderPacket *, const CIp &);
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// packet decoding helpers
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bool IsValidConnectPacket(const CBuffer &, CCallsign *, char *, const CIp &);
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bool IsValidDisconnectPacket(const CBuffer &, CCallsign *, char *);
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bool IsValidDvHeaderPacket(const CIp &, const CBuffer &, CDvHeaderPacket **);
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bool IsValidDvFramePacket(const CIp &, const CBuffer &, CDvFramePacket **);
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// packet encoding helpers
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void EncodeConnectAckPacket(CBuffer *);
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void EncodeConnectNackPacket(CBuffer *);
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bool EncodeDvHeaderPacket(const CDvHeaderPacket &, CBuffer *) const;
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void EncodeDvPacket(const CDvHeaderPacket &, const CDvFramePacket &, const CDvFramePacket &, const CDvFramePacket &, uint8, CBuffer *) const;
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void EncodeDvLastPacket(const CDvHeaderPacket &, const CDvFramePacket &, const CDvFramePacket &, const CDvFramePacket &, uint8, CBuffer *) const;
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void SwapEndianess(uint8 *, int) const;
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// dmr SeqId helper
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uint8 GetNextSeqId(uint8) const;
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// dmr DstId to Module helper
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char DmrDstIdToModule(uint32) const;
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uint32 ModuleToDmrDestId(char) const;
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// uiStreamId helpers
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uint32 IpToStreamId(const CIp &) const;
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// Buffer & LC helpers
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void AppendVoiceLCToBuffer(CBuffer *, uint32) const;
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void AppendTerminatorLCToBuffer(CBuffer *, uint32) const;
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void ReplaceEMBInBuffer(CBuffer *, uint8) const;
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protected:
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// for keep alive
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CTimePoint m_LastKeepaliveTime;
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// for queue header caches
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std::array<CDmrplusStreamCacheItem, NB_OF_MODULES> m_StreamsCache;
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};
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////////////////////////////////////////////////////////////////////////////////////////
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#endif /* cdmrplusprotocol_h */
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