I2cMaster.h

/* Arduino I2cMaster Library
 * Copyright (C) 2010 by William Greiman
 *
 * This file is part of the Arduino I2cMaster Library
 *
 * This Library 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 3 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with the Arduino I2cMaster Library.  If not, see
 * <http://www.gnu.org/licenses/>.
 */
#ifndef I2C_MASTER_H
#define I2C_MASTER_H

#include "WiringFrameworkDependencies.h"

uint8_t const I2C_DELAY_USEC = 2;

uint8_t const I2C_READ = 1;

uint8_t const I2C_WRITE = 0;

class I2cMasterBase
{
public:
  virtual uint8_t  read(uint8_t last) = 0;
  virtual bool  restart(uint8_t addressRW) = 0;
  virtual bool  start(uint8_t addressRW) = 0;
  virtual void  stop(void) = 0;
  virtual bool  write(uint8_t data) = 0;
};
//------------------------------------------------------------------------------
class SoftI2cMaster : public I2cMasterBase
{
public:
  SoftI2cMaster(uint8_t sdaPin, uint8_t sclPin);
  uint8_t read(uint8_t last);
  bool restart(uint8_t addressRW);
  bool start(uint8_t addressRW);
  void stop(void);
  bool write(uint8_t b);
private:
  // SoftI2cMaster() : sdaPin_(0), sclPin_(0) {}
  uint8_t sdaPin_;
  uint8_t sclPin_;
};

#endif  // I2C_MASTER_H