#pragma once
#include "I2C_Driver.h"

/****************************************************** The macro defines the TCA9554PWR information ******************************************************/

#define TCA9554_ADDRESS 0x20      // TCA9554PWR I2C address
#define TCA9554_INPUT_REG 0x00    // Input register, input level
#define TCA9554_OUTPUT_REG 0x01   // Output register, high and low level output
#define TCA9554_POLARITY_REG 0x02 // The Polarity Inversion register (register 2) allows polarity inversion of pins defined as inputs by the Configuration register.
#define TCA9554_CONFIG_REG 0x03   // Configuration register, mode configuration

#define TCA9554_OUT_MODE 0x00 // Configuration register value, output mode
#define TCA9554_IN_MODE 0xff  // Configuration register value, input mode

#define Low 0x00
#define High 0x01

#define EXIO_PIN1 0
#define EXIO_PIN2 1
#define EXIO_PIN3 2
#define EXIO_PIN4 3
#define EXIO_PIN5 4
#define EXIO_PIN6 5
#define EXIO_PIN7 6
#define EXIO_PIN8 7

namespace drivers
{
    class TCA9554PWR
    {
        I2C &m_i2c;
        uint8_t m_address;

    private:
        const bool writeRegister(const uint8_t reg, const uint8_t val);
        const bool readRegister(const uint8_t reg, uint8_t &val);

    public:
        TCA9554PWR(I2C &i2c, const uint8_t address);

        const bool setOut(const uint8_t channel, const bool state);
        const bool setPort(const uint8_t state);

        const bool readOut(const uint8_t channel);
        const bool readPort(uint8_t &state);
    };
}