marlin/Marlin/src/HAL/HAL_LPC1768/include/Wire.h

/*
  TwoWire.h - TWI/I2C library for Arduino & Wiring
  Copyright (c) 2006 Nicholas Zambetti.  All right reserved.

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.

  This library 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
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

  Modified 2012 by Todd Krein (todd@krein.org) to implement repeated starts
*/

// Modified for use with the mcp4451 digipot routine

#ifdef TARGET_LPC1768

#ifndef TwoWire_h
#define TwoWire_h

#include <inttypes.h>

class TwoWire
{

  public:
//    TwoWire();
    void begin();
    void beginTransmission(uint8_t);
    uint8_t endTransmission(void);
    size_t write(uint8_t);
};

//extern TwoWire Wire;//

TwoWire Wire;

  ////////////////////////////////////////////////////////////////////////////////////////
  extern "C" uint8_t digipot_mcp4451_start(uint8_t sla);
  extern "C" void digipot_mcp4451_init(void);
  extern "C" uint8_t digipot_mcp4451_send_byte(uint8_t data);


  void TwoWire::beginTransmission(uint8_t sla) { digipot_mcp4451_start(sla);}
  void TwoWire::begin(void) {digipot_mcp4451_init();}
  size_t TwoWire::write(uint8_t data) {return digipot_mcp4451_send_byte(data);}
  uint8_t TwoWire::endTransmission(void) {return 1;}

#endif
#endif  // TARGET_LPC1768