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

/*

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

 */

#include "qos-wifi-mac-helper.h"

#include "ns3/msdu-aggregator.h"

#include "ns3/wifi-mac.h"

#include "ns3/edca-txop-n.h"

#include "ns3/pointer.h"

#include "ns3/boolean.h"

#include "ns3/uinteger.h"

namespace ns3 {

QosWifiMacHelper::QosWifiMacHelper ()

QosWifiMacHelper::~QosWifiMacHelper ()

QosWifiMacHelper

QosWifiMacHelper::Default (void)

{

  QosWifiMacHelper helper;

  // We're making QoS-enabled Wi-Fi MACs here, so we set the necessary

  // attribute. I've carefully positioned this here so that someone

  // who knows what they're doing can override with explicit

  // attributes.

  helper.SetType ("ns3::StaWifiMac",

                  "QosSupported", BooleanValue (true));

  return helper;

}

void

QosWifiMacHelper::SetType (std::string type,

                           std::string n0, const AttributeValue &v0,

                           std::string n1, const AttributeValue &v1,

                           std::string n2, const AttributeValue &v2,

                           std::string n3, const AttributeValue &v3,

                           std::string n4, const AttributeValue &v4,

                           std::string n5, const AttributeValue &v5,

                           std::string n6, const AttributeValue &v6,

                           std::string n7, const AttributeValue &v7)

{

  m_mac.SetTypeId (type);

  m_mac.Set (n0, v0);

  m_mac.Set (n1, v1);

  m_mac.Set (n2, v2);

  m_mac.Set (n3, v3);

  m_mac.Set (n4, v4);

  m_mac.Set (n5, v5);

  m_mac.Set (n6, v6);

  m_mac.Set (n7, v7);

}

void

QosWifiMacHelper::SetMsduAggregatorForAc (AcIndex ac, std::string type,

                                          std::string n0, const AttributeValue &v0,

                                          std::string n1, const AttributeValue &v1,

                                          std::string n2, const AttributeValue &v2,

                                          std::string n3, const AttributeValue &v3)

{

  std::map<AcIndex, ObjectFactory>::iterator it = m_aggregators.find (ac);

  if (it != m_aggregators.end ())

    {

      it->second.SetTypeId (type);

      it->second.Set (n0, v0);

      it->second.Set (n1, v1);

      it->second.Set (n2, v2);

      it->second.Set (n3, v3);

    }

  else

    {

      ObjectFactory factory;

      factory.SetTypeId (type);

      factory.Set (n0, v0);

      factory.Set (n1, v1);

      factory.Set (n2, v2);

      factory.Set (n3, v3);

      m_aggregators.insert (std::make_pair (ac, factory));

    }

}

void

QosWifiMacHelper::SetBlockAckThresholdForAc (enum AcIndex ac, uint8_t threshold)

{

  m_bAckThresholds[ac] = threshold;

}

void

QosWifiMacHelper::SetBlockAckInactivityTimeoutForAc (enum AcIndex ac, uint16_t timeout)

{

  m_bAckInactivityTimeouts[ac] = timeout;

}

void

QosWifiMacHelper::Setup (Ptr<WifiMac> mac, enum AcIndex ac, std::string dcaAttrName) const

{

  std::map<AcIndex, ObjectFactory>::const_iterator it = m_aggregators.find (ac);

  PointerValue ptr;

  mac->GetAttribute (dcaAttrName, ptr);

  Ptr<EdcaTxopN> edca = ptr.Get<EdcaTxopN> ();

  if (it != m_aggregators.end ())

    {

      ObjectFactory factory = it->second;

      Ptr<MsduAggregator> aggregator = factory.Create<MsduAggregator> ();

      edca->SetMsduAggregator (aggregator);

    }

  if (m_bAckThresholds.find (ac) != m_bAckThresholds.end ())

    {

      edca->SetBlockAckThreshold (m_bAckThresholds.find(ac)->second);

    }

  if (m_bAckInactivityTimeouts.find (ac) != m_bAckInactivityTimeouts.end ())

    {

      edca->SetBlockAckInactivityTimeout (m_bAckInactivityTimeouts.find(ac)->second);

    }

}

Ptr<WifiMac>

QosWifiMacHelper::Create (void) const

{

  Ptr<WifiMac> mac = m_mac.Create<WifiMac> ();

  Setup (mac, AC_VO, "VO_EdcaTxopN");

  Setup (mac, AC_VI, "VI_EdcaTxopN");

  Setup (mac, AC_BE, "BE_EdcaTxopN");

  Setup (mac, AC_BK, "BK_EdcaTxopN");

  return mac;

}

} //namespace ns3