/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */

/*

 * Copyright (c) 2006, 2009 INRIA

 * Copyright (c) 2009 MIRKO BANCHI

 *

 * 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>

 * Author: Mirko Banchi <mk.banchi@gmail.com>

 */

#ifndef QADHOC_WIFI_MAC_H

#define QADHOC_WIFI_MAC_H

#include "ns3/mac48-address.h"

#include "ns3/callback.h"

#include "ns3/packet.h"

#include "wifi-mac.h"

#include "qos-utils.h"

#include "amsdu-subframe-header.h"

namespace ns3 {

class EdcaTxopN;

class WifiMacHeader;

class WifiPhy;

class DcfManager;

class MacLow;

class MacRxMiddle;

class QadhocWifiMac : public WifiMac

{

public:

  static TypeId GetTypeId (void);

  QadhocWifiMac ();

  ~QadhocWifiMac ();

  // all inherited from WifiMac base class.

  virtual void SetSlot (Time slotTime);

  virtual void SetSifs (Time sifs);

  virtual void SetEifsNoDifs (Time eifsNoDifs);

  virtual void SetAckTimeout (Time ackTimeout);

  virtual void SetCtsTimeout (Time ctsTimeout);

  virtual void SetPifs (Time pifs);

  virtual Time GetSlot (void) const;

  virtual Time GetSifs (void) const;

  virtual Time GetEifsNoDifs (void) const;

  virtual Time GetAckTimeout (void) const;

  virtual Time GetCtsTimeout (void) const;

  virtual Time GetPifs (void) const;

  virtual void SetWifiPhy (Ptr<WifiPhy> phy);

  virtual void SetWifiRemoteStationManager (Ptr<WifiRemoteStationManager> stationManager);

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

  virtual void Enqueue (Ptr<const Packet> packet, Mac48Address to);

  virtual bool SupportsSendFrom (void) const;

  virtual void SetForwardUpCallback (Callback<void,Ptr<Packet>, Mac48Address, Mac48Address> upCallback);

  virtual void SetLinkUpCallback (Callback<void> linkUp);

  virtual void SetLinkDownCallback (Callback<void> linkDown);

  virtual Mac48Address GetAddress (void) const;

  virtual Ssid GetSsid (void) const;

  virtual void SetAddress (Mac48Address address);

  virtual void SetSsid (Ssid ssid);

  virtual Mac48Address GetBssid (void) const;

private:

  Callback<void, Ptr<Packet>, Mac48Address, Mac48Address> m_forwardUp;

  virtual void DoDispose (void);

  void Receive (Ptr<Packet> packet, WifiMacHeader const *hdr);

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

  QadhocWifiMac &operator = (const QadhocWifiMac &);

  QadhocWifiMac (const QadhocWifiMac &);

  /**

  * When an A-MSDU is received, is deaggregated by this method and all extracted packets are

  * forwarded up.

  */

  void DeaggregateAmsduAndForward (Ptr<Packet> aggregatedPacket, WifiMacHeader const *hdr);

  typedef std::map<AccessClass, Ptr<EdcaTxopN> > Queues;

  typedef std::list<std::pair<Ptr<Packet>, AmsduSubframeHeader> > DeaggregatedMsdus;

  typedef std::list<std::pair<Ptr<Packet>, AmsduSubframeHeader> >::const_iterator DeaggregatedMsdusCI;

  Ptr<EdcaTxopN> GetVOQueue (void) const;

  Ptr<EdcaTxopN> GetVIQueue (void) const;

  Ptr<EdcaTxopN> GetBEQueue (void) const;

  Ptr<EdcaTxopN> GetBKQueue (void) const;

  Queues m_queues;

  Ptr<EdcaTxopN> m_voEdca;

  Ptr<EdcaTxopN> m_viEdca;

  Ptr<EdcaTxopN> m_beEdca;

  Ptr<EdcaTxopN> m_bkEdca;

  Ptr<MacLow> m_low;

  Ptr<WifiPhy> m_phy;

  Ptr<WifiRemoteStationManager> m_stationManager;

  MacRxMiddle *m_rxMiddle;

  MacTxMiddle *m_txMiddle;

  DcfManager *m_dcfManager;

  Ssid m_ssid;

  Time m_eifsNoDifs;

};

} //namespace ns3

#endif /* QADHOC_WIFI_MAC_H */