hardware.hpp

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/*****************************************************************************
** Preprocessor
*****************************************************************************/
 
#ifndef KOBUKI_HW_DATA_HPP__
#define KOBUKI_HW_DATA_HPP__
 
/*****************************************************************************
** Include
*****************************************************************************/
 
#include "../packet_handler/payload_base.hpp"
#include "../packet_handler/payload_headers.hpp"
 
/*****************************************************************************
** Namespace
*****************************************************************************/
 
namespace kobuki
{
 
/*****************************************************************************
** Interface
*****************************************************************************/
 
class Hardware : public packet_handler::payloadBase
{
public:
  Hardware() : packet_handler::payloadBase(true, 2) {};
  struct Data {
    uint32_t version;
  } data;
 
  // methods
  bool serialise(ecl::PushAndPop<unsigned char> & byteStream)
  {
    unsigned char length = 4;
    buildBytes(Header::Hardware, byteStream);
    buildBytes(length, byteStream);
    buildBytes(data.version, byteStream);
    return true;
  }
 
  bool deserialise(ecl::PushAndPop<unsigned char> & byteStream)
  {
    if (byteStream.size() < length+2)
    {
      //std::cout << "kobuki_node: kobuki_hw: deserialise failed. not enough byte stream." << std::endl;
      return false;
    }
 
    unsigned char header_id, length_packed;
    buildVariable(header_id, byteStream);
    buildVariable(length_packed, byteStream);
    if( header_id != Header::Hardware ) return false;
    if( length_packed != 2 and length_packed != 4) return false;
 
    // TODO First 3 firmware versions coded version number on 2 bytes, so we need convert manually to our new
    // 4 bytes system; remove this horrible, dirty hack as soon as we upgrade the firmware to 1.1.2 or 1.2.0
    if (length_packed == 2)
    {
      uint16_t old_style_version = 0;
      buildVariable(old_style_version, byteStream);
 
      if (old_style_version == 104)
        data.version = 0x00010004;//65540; // 1.0.4
    }
    else
    {
      buildVariable(data.version, byteStream);
    }
 
    //showMe();
    return constrain();
  }
 
  bool constrain()
  {
    return true;
  }
 
  void showMe()
  {
  }
};
 
} // namespace kobuki
 
#endif /* KOBUKI_HW_DATA_HPP__ */