Adafruit_I2CDevice.h

/*
 * Copyright (c) 2021-2022, RTduino Development Team
 *
 * SPDX-License-Identifier: MIT
 *
 * https://github.com/RTduino/RTduino
 * https://gitee.com/rtduino/RTduino
 *
 * Change Logs:
 * Date           Author       Notes
 *            Adafruit Team    First version
 * 2022-02-19     Meco Man     port to RTduino
 */

#ifndef Adafruit_I2CDevice_h
#define Adafruit_I2CDevice_h

#include <Arduino.h>

#ifdef RTDUINO_USING_WIRE
#include <rtdevice.h>
#include "Wire.h"

///< The class which defines how we will talk to this device over I2C
class Adafruit_I2CDevice
{
    private:
        TwoWire *_wire;
        uint8_t _addr;
        bool _begun;
        struct rt_i2c_bus_device *_i2c_bus_dev;
        size_t _maxBufferSize;

    public:
        Adafruit_I2CDevice(uint8_t addr, TwoWire *theWire = &Wire);
        uint8_t address(void);
        bool begin(bool addr_detect = true);
        void end(void);
        bool detected(void);
        bool read(uint8_t *buffer, size_t len, bool stop = true);
        bool write(const uint8_t *buffer, size_t len, bool stop = true,
                  const uint8_t *prefix_buffer = NULL, size_t prefix_len = 0);
        bool write_then_read(const uint8_t *write_buffer, size_t write_len,
                             uint8_t *read_buffer, size_t read_len,
                             bool stop = false);
        bool setSpeed(uint32_t desiredclk);

        /*!   @brief  How many bytes we can read in a transaction
         *    @return The size of the Wire receive/transmit buffer */
        size_t maxBufferSize() { return _maxBufferSize; }
};

#endif /* RTDUINO_USING_WIRE */
#endif // Adafruit_I2CDevice_h