RlinkPacketBufRcv.ipp

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// $Id: RlinkPacketBufRcv.ipp 1198 2019-07-27 19:08:31Z mueller $
// SPDX-License-Identifier: GPL-3.0-or-later
// Copyright 2014-2019 by Walter F.J. Mueller <W.F.J.Mueller@gsi.de>
// 
// Revision History: 
// Date         Rev Version  Comment
// 2019-07-27  1198   1.0.1  add Nak handling
// 2014-11-23   606   1.0    Initial version
// 2014-11-02   600   0.1    First draft (re-organize PacketBuf for rlink v4)
// ---------------------------------------------------------------------------
 
// all method definitions in namespace Retro
namespace Retro {
 
//------------------------------------------+-----------------------------------
 
inline bool RlinkPacketBufRcv::CheckNak() const
{
  return fNakIndex >= 0 && int(fNDone) == fNakIndex;
}
 
//------------------------------------------+-----------------------------------
 
inline bool RlinkPacketBufRcv::CheckSize(size_t nbyte) const
{
  return fPktBuf.size()-fNDone >= nbyte;
}
 
//------------------------------------------+-----------------------------------
 
inline void RlinkPacketBufRcv::GetWithCrc(uint8_t& data)
{
  data = fPktBuf[fNDone++];
  fCrc.AddData(data);
}
 
//------------------------------------------+-----------------------------------
 
inline void RlinkPacketBufRcv::GetWithCrc(uint16_t& data)
{
  uint8_t datl = fPktBuf[fNDone++];
  uint8_t dath = fPktBuf[fNDone++];
  fCrc.AddData(datl);
  fCrc.AddData(dath);
  data = uint16_t(datl) | (uint16_t(dath) << 8);
}
 
//------------------------------------------+-----------------------------------
 
inline bool RlinkPacketBufRcv::CheckCrc()
{
  uint8_t  datl = fPktBuf[fNDone++];
  uint8_t  dath = fPktBuf[fNDone++];
  uint16_t data = uint16_t(datl) | (uint16_t(dath) << 8);
  return data == fCrc.Crc();
}
 
//------------------------------------------+-----------------------------------
 
inline int RlinkPacketBufRcv::NakIndex() const
{
  return fNakIndex;
}
 
//------------------------------------------+-----------------------------------
 
inline uint8_t RlinkPacketBufRcv::NakCode() const
{
  return fNakCode;
}
 
} // end namespace Retro