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

/*

 * Copyright (c) 2005,2006 INRIA

 * All rights reserved.

 *

 * 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 WIFI_NET_DEVICE_H

#define WIFI_NET_DEVICE_H

#include "ns3/net-device.h"

#include "ns3/packet.h"

#include "ns3/callback-trace-source.h"

#include "ns3/mac48-address.h"

#include "ssid.h"

#include <string>

namespace ns3 {

class WifiChannel;

class PhyWifi;

class PropagationModel;

class MacStations;

class TraceContainer;

class MacLow;

class MacRxMiddle;

class MacTxMiddle;

class MacHighAdhoc;

class MacParameters;

class Dcf;

class DcaTxop;

class MacQueueWifie;

class MacHighAdhoc;

class MacHighNqsta;

class MacHighNqap;

class WifiNetDevice : public NetDevice {

public:

  virtual ~WifiNetDevice ();

  void ConnectTo (Ptr<WifiChannel> channel);

  virtual Mac48Address GetBssid (void) const = 0;

  virtual Ssid GetSsid (void) const = 0;

protected:

  WifiNetDevice (Mac48Address address);

  void DoForwardUp (const Packet &packet, const Mac48Address &from);

private:

  virtual bool SendTo (const Packet &packet, const Address &to, uint16_t protocolNumber);

  virtual void NotifyConnected (void) = 0;

  virtual bool DoSendTo (const Packet &packet, const Mac48Address &to) = 0;

  void Associated (void);

  friend class WifiNetDeviceFactory;

  PropagationModel *m_propagation;

  PhyWifi *m_phy;

  MacStations *m_stations;

  MacLow *m_low;

  MacRxMiddle *m_rxMiddle;

  MacTxMiddle *m_txMiddle;

  MacParameters *m_parameters;

  CallbackTraceSource<Packet> m_rxTraceSource;

};

class WifiAdhocNetDevice : public WifiNetDevice {

public:

  WifiAdhocNetDevice (Ptr<Node> node, Mac48Address address);

  virtual ~WifiAdhocNetDevice ();

  virtual Mac48Address GetBssid (void) const;

  virtual Ssid GetSsid (void) const;

  void SetSsid (Ssid ssid);

private:

  virtual bool DoSendTo (const Packet &packet, Mac48Address const & to);

  virtual void NotifyConnected (void);

  friend class WifiNetDeviceFactory;

  Ssid m_ssid;

  DcaTxop *m_dca;

  MacHighAdhoc *m_high;

};

class WifiNqstaNetDevice : public WifiNetDevice {

public:

  WifiNqstaNetDevice (Ptr<Node> node, Mac48Address address);

  virtual ~WifiNqstaNetDevice ();

  virtual Mac48Address GetBssid (void) const;

  virtual Ssid GetSsid (void) const;

  void StartActiveAssociation (Ssid ssid);

private:

  void Associated (void);

  void DisAssociated (void);

  virtual bool DoSendTo (const Packet &packet, Mac48Address const & to);

  virtual void NotifyConnected (void);

  friend class WifiNetDeviceFactory;

  Ssid m_ssid;

  DcaTxop *m_dca;

  MacHighNqsta *m_high;

};

class WifiNqapWifiNetDevice : public WifiNetDevice {

public:

  WifiNqapWifiNetDevice (Mac48Address address);

  virtual ~WifiNqapWifiNetDevice ();

  virtual Mac48Address GetBssid (void) const;

  virtual Ssid GetSsid (void) const;

  void SetSsid (Ssid ssid);

private:

  virtual bool DoSendTo (const Packet &packet, Mac48Address const & to);

  virtual void NotifyConnected (void);

  friend class WifiNetDeviceFactory;

  Ssid m_ssid;

  DcaTxop *m_dca;

  MacHighNqap *m_high;

};

} // namespace ns3

#endif /* WIFI_NET_DEVICE_H */