include/wipal/phy/prism_header.hh

/*
 * WiPal - A library and a set of tools to manipulate wireless traces.
 * Copyright (C) 2007, 2008, 2009  Universite Pierre et Marie Curie - Paris 6
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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., 51 Franklin Street, Fifth Floor, Boston,
 * MA  02110-1301  USA
 *
 * Author: Thomas Claveirole <thomas.claveirole@lip6.fr>
 */
#ifndef PRISM_HEADER_HH_
# define PRISM_HEADER_HH_

# include <wipal/phy/phy.hh>

namespace wpl
{

  // Forward declarations.
  namespace prism
  {
    struct      time;
    struct      header;
  }


  // Virtual types.
  namespace tool
  {

    template <>
    struct types<prism::time>
    {
      typedef uint32_t  impl_type;
    };

    template <>
    struct types<prism::header>
    {
      typedef prism::time       time_type;
    };

  } // End of namespace wpl::tool.


  // Core declarations.

  namespace prism
  {
    struct item
    {
      uint32_t  get(bool swapped) const;

      item&     set(uint32_t value, bool swapped);

    protected:
      uint32_t did;     
      uint16_t status;  
      uint16_t len;     
      uint32_t data;    
    } __attribute__ ((__packed__));

    struct time: public phy::time<prism::time>
    {
      typedef prism::time                               exact_type;
      typedef WP_TYPE_(impl_type, exact_type)   impl_type;

      impl_type get_impl() const;
      exact_type&       increment(tool::microseconds microseconds);

      time();

      time(uint32_t mactime, uint32_t hosttime);

      uint32_t  mactime() const;

      uint32_t  hosttime() const;

    private:
      uint32_t  mactime_;
      uint32_t  hosttime_;
    };

    struct header: public phy::header<prism::header>
    {
      typedef prism::header                     exact_type;
      typedef WP_TYPE_(time_type, exact_type)   time_type;

      size_t    len_impl(size_t, bool) const;
      time_type time_get_impl(bool) const;
      void      time_set_impl(const time_type&, bool);

      template <class S1, class S2>
      static bool
      eq_time(const pkt::packet<S1>&            lhs,
              const pkt::packet<S2>&            rhs,
              const unsigned                    prec,
              const tool::end::endianness       phy_end);

      enum
        {
          devnamelen_max = 16
        };

      uint32_t  msgcode;                        
      uint32_t  msglen;                         
      uint8_t   devname[devnamelen_max];        
      item      hosttime;                       
      item      mactime;                        
      item      channel;                        
      item      rssi;                           
      item      sq;                             
      item      signal;                         
      item      noise;                          
      item      rate;                           
      item      istx;                           
      item      frmlen;                         
    } __attribute__ ((__packed__));

  } // End of namespace wpl::prism.

} // End of namespace wpl.

# include "prism_header.hxx"

#endif // ! PRISM_HEADER_HH_

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