uart/settings.hpp

#pragma once

namespace uart {

enum class Mode {
	ASYNCHRONOUS,
	ASYNCHRONOUS_2X,
	SYNCHRONOUS_MASTER,
	SYNCHRONOUS_SLAVE,
	SPI,
};

enum class DataBits {
	FIVE,
	SIX,
	SEVEN,
	EIGHT,
	NINE,
};

enum class StopBits {
	ONE,
	TWO,
};

enum class Parity {
	NONE,
	ODD,
	EVEN,
};

namespace detail {

template <const DataBits dataBits>
struct choose_data_size {
	using type = uint8_t;
};

template <>
struct choose_data_size<DataBits::NINE> {
	using type = uint16_t;
};

} // namespace detail

template <const uint32_t baudRate = 9600, const DataBits dataBits = DataBits::EIGHT, const Parity parity = Parity::NONE,
          const StopBits stopBits = StopBits::ONE>
class settings {
  public:
	static constexpr auto BAUD_RATE = baudRate;
	static constexpr auto DATA_BITS = dataBits;
	static constexpr auto PARITY = parity;
	static constexpr auto STOP_BITS = stopBits;
	using data_t = typename detail::choose_data_size<DATA_BITS>::type;
};

} // namespace uart