/*
* Copyright (C) 2012 Southern Storm Software, Pty Ltd.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/

#ifndef SoftI2C_h
#define SoftI2C_h

#include "I2CMaster.h"

class SoftI2C : public I2CMaster {
public:
    SoftI2C(uint8_t dataPin, uint8_t clockPin);

    unsigned int maxTransferSize() const;

    void startWrite(unsigned int address);
    void write(uint8_t value);
    bool endWrite();

    bool startRead(unsigned int address, unsigned int count);
    unsigned int available();
    uint8_t read();

private:
    uint8_t _dataPin;
    uint8_t _clockPin;
    bool started;
    bool acked;
    bool inWrite;
    unsigned int readCount;

    void start();
    void stop();
    void writeBit(bool bit);
    bool readBit();
};

#endif