I2C.h

/*
 * I2C.h
 *
 *  Created on: Feb 24, 2017
 *      Author: kolban
 */

#ifndef MAIN_I2C_H_
#define MAIN_I2C_H_
#include <stdint.h>
#include <sys/types.h>
#include <driver/i2c.h>
#include <driver/gpio.h>


class I2C {
public:
    static const gpio_num_t DEFAULT_SDA_PIN = GPIO_NUM_25;

    static const gpio_num_t DEFAULT_CLK_PIN = GPIO_NUM_26;

    static const uint32_t DEFAULT_CLK_SPEED = 100000;

    I2C();
    void beginTransaction();
    void endTransaction();
    uint8_t getAddress() const;
    void init(uint8_t address, gpio_num_t sdaPin = DEFAULT_SDA_PIN, gpio_num_t sclPin = DEFAULT_CLK_PIN, uint32_t clkSpeed = DEFAULT_CLK_SPEED, i2c_port_t portNum = I2C_NUM_0, bool pullup = true);
    void read(uint8_t* bytes, size_t length, bool ack = true);
    void read(uint8_t* byte, bool ack = true);
    void scan();
    void setAddress(uint8_t address);
    void setDebug(bool enabled);
    bool slavePresent(uint8_t address);
    void start();
    void stop();
    void write(uint8_t byte, bool ack = true);
    void write(uint8_t* bytes, size_t length, bool ack = true);

private:
    uint8_t       m_address;
    i2c_cmd_handle_t m_cmd;
    bool             m_directionKnown;
    gpio_num_t     m_sdaPin;
    gpio_num_t     m_sclPin;
    i2c_port_t     m_portNum;

};

#endif /* MAIN_I2C_H_ */