regular-wifi-mac.h

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2008 INRIA
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation;
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
 */

#ifndef REGULAR_WIFI_MAC_H
#define REGULAR_WIFI_MAC_H

#include "wifi-mac.h"
#include "qos-txop.h"
#include "ssid.h"

namespace ns3 {

class MacLow;
class MacRxMiddle;
class MacTxMiddle;
class ChannelAccessManager;
class ExtendedCapabilities;

class RegularWifiMac : public WifiMac
{
public:
  static TypeId GetTypeId (void);

  RegularWifiMac ();
  virtual ~RegularWifiMac ();

  // Implementations of pure virtual methods.
  void SetSlot (Time slotTime);
  void SetSifs (Time sifs);
  void SetEifsNoDifs (Time eifsNoDifs);
  void SetPifs (Time pifs);
  void SetRifs (Time rifs);
  void SetAckTimeout (Time ackTimeout);
  void SetShortSlotTimeSupported (bool enable);
  void SetSsid (Ssid ssid);
  void SetAddress (Mac48Address address);
  void SetPromisc (void);
  Time GetRifs (void) const;
  Time GetPifs (void) const;
  Time GetSifs (void) const;
  Time GetSlot (void) const;
  Time GetEifsNoDifs (void) const;
  Time GetAckTimeout (void) const;
  bool GetShortSlotTimeSupported (void) const;
  Ssid GetSsid (void) const;
  Mac48Address GetAddress (void) const;
  Mac48Address GetBssid (void) const;
  virtual void Enqueue (Ptr<Packet> packet, Mac48Address to, Mac48Address from);
  virtual bool SupportsSendFrom (void) const;
  virtual void SetWifiPhy (const Ptr<WifiPhy> phy);
  Ptr<WifiPhy> GetWifiPhy (void) const;
  void ResetWifiPhy (void);
  virtual void SetWifiRemoteStationManager (const Ptr<WifiRemoteStationManager> stationManager);

  typedef Callback<void, Ptr<const Packet>, Mac48Address, Mac48Address> ForwardUpCallback;

  void SetForwardUpCallback (ForwardUpCallback upCallback);
  void SetLinkUpCallback (Callback<void> linkUp);
  void SetLinkDownCallback (Callback<void> linkDown);

  /* Next functions are not pure virtual so non-QoS WifiMacs are not
   * forced to implement them.
   */
  void SetBasicBlockAckTimeout (Time blockAckTimeout);
  Time GetBasicBlockAckTimeout (void) const;
  void SetCompressedBlockAckTimeout (Time blockAckTimeout);
  Time GetCompressedBlockAckTimeout (void) const;

  // Should be implemented by child classes
  virtual void Enqueue (Ptr<Packet> packet, Mac48Address to) = 0;

  void SetCtsToSelfSupported (bool enable);
  void SetRifsSupported (bool enable);
  bool GetRifsSupported (void) const;
  void SetBssid (Mac48Address bssid);

  Ptr<WifiRemoteStationManager> GetWifiRemoteStationManager (void) const;
  ExtendedCapabilities GetExtendedCapabilities (void) const;
  HtCapabilities GetHtCapabilities (void) const;
  VhtCapabilities GetVhtCapabilities (void) const;
  HeCapabilities GetHeCapabilities (void) const;

protected:
  virtual void DoInitialize ();
  virtual void DoDispose ();

  Ptr<MacRxMiddle> m_rxMiddle;  
  Ptr<MacTxMiddle> m_txMiddle;  
  Ptr<MacLow> m_low;            
  Ptr<ChannelAccessManager> m_channelAccessManager; 
  Ptr<WifiPhy> m_phy;           

  Ptr<WifiRemoteStationManager> m_stationManager; 

  ForwardUpCallback m_forwardUp; 
  Callback<void> m_linkUp;       
  Callback<void> m_linkDown;     

  Ssid m_ssid; 

  Ptr<Txop> m_txop;

  typedef std::map<AcIndex, Ptr<QosTxop> > EdcaQueues;

  EdcaQueues m_edca;

  Ptr<Txop> GetTxop (void) const;

  Ptr<QosTxop> GetVOQueue (void) const;
  Ptr<QosTxop> GetVIQueue (void) const;
  Ptr<QosTxop> GetBEQueue (void) const;
  Ptr<QosTxop> GetBKQueue (void) const;

  void FinishConfigureStandard (WifiPhyStandard standard);

  void ConfigureContentionWindow (uint32_t cwMin, uint32_t cwMax);

  void SetTypeOfStation (TypeOfStation type);

  virtual void Receive (Ptr<WifiMacQueueItem> mpdu);
  virtual void TxOk (const WifiMacHeader &hdr);
  virtual void TxFailed (const WifiMacHeader &hdr);

  void ForwardUp (Ptr<const Packet> packet, Mac48Address from, Mac48Address to);

  virtual void DeaggregateAmsduAndForward (Ptr<WifiMacQueueItem> mpdu);

  void SendAddBaResponse (const MgtAddBaRequestHeader *reqHdr,
                          Mac48Address originator);

  virtual void SetQosSupported (bool enable);
  bool GetQosSupported () const;

  void SetHtSupported (bool enable);
  bool GetHtSupported () const;

  void SetVhtSupported (bool enable);
  bool GetVhtSupported () const;

  void SetErpSupported (bool enable);
  bool GetErpSupported () const;

  void SetDsssSupported (bool enable);
  bool GetDsssSupported () const;

  void SetHeSupported (bool enable);
  bool GetHeSupported () const;

private:
  RegularWifiMac (const RegularWifiMac &);
  RegularWifiMac & operator= (const RegularWifiMac & mac);

  void SetupEdcaQueue (AcIndex ac);

  void SetVoBlockAckThreshold (uint8_t threshold);
  void SetViBlockAckThreshold (uint8_t threshold);
  void SetBeBlockAckThreshold (uint8_t threshold);
  void SetBkBlockAckThreshold (uint8_t threshold);

  void SetVoBlockAckInactivityTimeout (uint16_t timeout);
  void SetViBlockAckInactivityTimeout (uint16_t timeout);
  void SetBeBlockAckInactivityTimeout (uint16_t timeout);
  void SetBkBlockAckInactivityTimeout (uint16_t timeout);

  bool m_qosSupported;
  bool m_erpSupported;
  bool m_dsssSupported;

  void EnableAggregation (void);
  void DisableAggregation (void);

  uint16_t m_voMaxAmsduSize; 
  uint16_t m_viMaxAmsduSize; 
  uint16_t m_beMaxAmsduSize; 
  uint16_t m_bkMaxAmsduSize; 

  uint32_t m_voMaxAmpduSize; 
  uint32_t m_viMaxAmpduSize; 
  uint32_t m_beMaxAmpduSize; 
  uint32_t m_bkMaxAmpduSize; 

  TracedCallback<const WifiMacHeader &> m_txOkCallback; 
  TracedCallback<const WifiMacHeader &> m_txErrCallback; 

  bool m_shortSlotTimeSupported; 
  bool m_rifsSupported; 
};

} //namespace ns3

#endif /* REGULAR_WIFI_MAC_H */