adapter_base.hpp

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/*
 * SPDX-FileCopyrightText: 2024 M5Stack Technology CO LTD
 *
 * SPDX-License-Identifier: MIT
 */
#ifndef M5_UNIT_COMPONENT_ADAPTER_BASE_HPP
#define M5_UNIT_COMPONENT_ADAPTER_BASE_HPP
 
#include <cstdint>
#include <cstddef>
#include <memory>
#include <M5HAL.hpp>
#include "types.hpp"
 
namespace m5 {
namespace unit {
class Adapter {
public:
    enum class Type : uint8_t {
        Unknown,
        I2C,
        GPIO,
        UART,
        SPI,
    };
 
    class Impl {
    public:
        Impl() = default;
 
        virtual ~Impl()
        {
        }
 
        // R/W
        virtual m5::hal::error::error_t readWithTransaction(uint8_t*, const size_t)
        {
            return m5::hal::error::error_t::UNKNOWN_ERROR;
        }
        virtual m5::hal::error::error_t writeWithTransaction(const uint8_t*, const size_t, const uint32_t)
        {
            return m5::hal::error::error_t::UNKNOWN_ERROR;
        }
        virtual m5::hal::error::error_t writeWithTransaction(const uint8_t, const uint8_t*, const size_t,
                                                             const uint32_t)
        {
            return m5::hal::error::error_t::UNKNOWN_ERROR;
        }
        virtual m5::hal::error::error_t writeWithTransaction(const uint16_t, const uint8_t*, const size_t,
                                                             const uint32_t)
        {
            return m5::hal::error::error_t::UNKNOWN_ERROR;
        }
        virtual m5::hal::error::error_t generalCall(const uint8_t*, const size_t)
        {
            return m5::hal::error::error_t::UNKNOWN_ERROR;
        }
        // GPIO
        virtual m5::hal::error::error_t pinModeRX(const gpio::Mode)
        {
            return m5::hal::error::error_t::UNKNOWN_ERROR;
        }
        virtual m5::hal::error::error_t writeDigitalRX(const bool)
        {
            return m5::hal::error::error_t::UNKNOWN_ERROR;
        }
        virtual m5::hal::error::error_t readDigitalRX(bool&)
        {
            return m5::hal::error::error_t::UNKNOWN_ERROR;
        }
        virtual m5::hal::error::error_t writeAnalogRX(const uint16_t)
        {
            return m5::hal::error::error_t::UNKNOWN_ERROR;
        }
        virtual m5::hal::error::error_t readAnalogRX(uint16_t&)
        {
            return m5::hal::error::error_t::UNKNOWN_ERROR;
        }
        virtual m5::hal::error::error_t pulseInRX(uint32_t&, const int, const uint32_t)
        {
            return m5::hal::error::error_t::UNKNOWN_ERROR;
        }
 
        virtual m5::hal::error::error_t pinModeTX(const gpio::Mode)
        {
            return m5::hal::error::error_t::UNKNOWN_ERROR;
        }
        virtual m5::hal::error::error_t writeDigitalTX(const bool)
        {
            return m5::hal::error::error_t::UNKNOWN_ERROR;
        }
        virtual m5::hal::error::error_t readDigitalTX(bool&)
        {
            return m5::hal::error::error_t::UNKNOWN_ERROR;
        }
        virtual m5::hal::error::error_t writeAnalogTX(const uint16_t)
        {
            return m5::hal::error::error_t::UNKNOWN_ERROR;
        }
        virtual m5::hal::error::error_t readAnalogTX(uint16_t&)
        {
            return m5::hal::error::error_t::UNKNOWN_ERROR;
        }
        virtual m5::hal::error::error_t pulseInTX(uint32_t&, const int, const uint32_t)
        {
            return m5::hal::error::error_t::UNKNOWN_ERROR;
        }
    };
 
    explicit Adapter() : _impl{new Impl()}
    {
    }
 
protected:
    Adapter(const Type t, Impl* impl) : _type{t}, _impl{impl}
    {
    }
 
public:
    Adapter(const Adapter&) = delete;
 
    Adapter(Adapter&&) noexcept = default;
 
    Adapter& operator=(const Adapter&) = delete;
 
    Adapter& operator=(Adapter&&) noexcept = default;
 
    virtual ~Adapter() = default;
 
    inline Type type() const
    {
        return _type;
    }
 
    virtual Adapter* duplicate(const uint8_t /*addr*/)
    {
        return new Adapter();
    }
 
    //
    inline virtual void beginTransaction()
    {
    }
    inline virtual void endTransaction()
    {
    }
 
    // I2C R/W
    inline m5::hal::error::error_t readWithTransaction(uint8_t* data, const size_t len)
    {
        return _impl->readWithTransaction(data, len);
    }
    inline m5::hal::error::error_t writeWithTransaction(const uint8_t* data, const size_t len,
                                                        const uint32_t exparam = 1)
    {
        return _impl->writeWithTransaction(data, len, exparam);
    }
    inline m5::hal::error::error_t writeWithTransaction(const uint8_t reg, const uint8_t* data, const size_t len,
                                                        const uint32_t exparam = 1)
    {
        return _impl->writeWithTransaction(reg, data, len, exparam);
    }
    inline m5::hal::error::error_t writeWithTransaction(const uint16_t reg, const uint8_t* data, const size_t len,
                                                        const uint32_t exparam = 1)
    {
        return _impl->writeWithTransaction(reg, data, len, exparam);
    }
    inline m5::hal::error::error_t generalCall(const uint8_t* data, const size_t len)
    {
        return _impl->generalCall(data, len);
    }
 
    // GPIO
    inline m5::hal::error::error_t pinModeRX(const gpio::Mode m)
    {
        return _impl->pinModeRX(m);
    }
    inline m5::hal::error::error_t writeDigitalRX(const bool high)
    {
        return _impl->writeDigitalRX(high);
    }
    inline m5::hal::error::error_t readDigitalRX(bool& high)
    {
        return _impl->readDigitalRX(high);
    }
    inline m5::hal::error::error_t writeAnalogRX(const uint16_t v)
    {
        return _impl->writeAnalogRX(v);
    }
    inline m5::hal::error::error_t readAnalogRX(uint16_t& v)
    {
        return _impl->readAnalogRX(v);
    }
    inline m5::hal::error::error_t pulseInRX(uint32_t& duration, const int state, const uint32_t timeout_us)
    {
        return _impl->pulseInRX(duration, state, timeout_us);
    }
 
    inline m5::hal::error::error_t pinModeTX(const gpio::Mode m)
    {
        return _impl->pinModeTX(m);
    }
    inline m5::hal::error::error_t writeDigitalTX(const bool high)
    {
        return _impl->writeDigitalTX(high);
    }
    inline m5::hal::error::error_t readDigitalTX(bool& high)
    {
        return _impl->readDigitalTX(high);
    }
    inline m5::hal::error::error_t writeAnalogTX(const uint16_t v)
    {
        return _impl->writeAnalogTX(v);
    }
    inline m5::hal::error::error_t readAnalogTX(uint16_t& v)
    {
        return _impl->readAnalogTX(v);
    }
    inline m5::hal::error::error_t pulseInTX(uint32_t& duration, const int state, const uint32_t timeout_us)
    {
        return _impl->pulseInTX(duration, state, timeout_us);
    }
 
private:
    Type _type{Type::Unknown};
 
protected:
    std::unique_ptr<Impl> _impl{};
};
 
struct transaction_guard {
    explicit transaction_guard(Adapter* ad) : _ad{ad}
    {
        _ad->beginTransaction();
    }
    ~transaction_guard()
    {
        _ad->endTransaction();
    }
    Adapter* _ad{};
};
 
}  // namespace unit
}  // namespace m5
#endif