spi/config.hpp

#pragma once

#include <cstdint>

#include "../io/io.hpp"

namespace spi {

enum class ClockDiv {
	DIV_4 = 0,
	DIV_16 = 1,
	DIV_64 = 2,
	DIV_128 = 3,

	DIV_2X_2 = 4,
	DIV_2X_8 = 5,
	DIV_2X_32 = 6,
	DIV_2X_64 = 7,
};

enum class Mode {
	MODE_0 = 0,
	MODE_1 = 1,
	MODE_2 = 2,
	MODE_3 = 3,
};

enum class Side {
	MASTER,
	SLAVE,
};

enum class BitOrder {
	LSB_FIRST,
	MSB_FIRST,
};

template <ClockDiv freq = ClockDiv::DIV_128, Mode mode = Mode::MODE_0, Side side = Side::MASTER,
          BitOrder bitOrder = BitOrder::MSB_FIRST, io::P ssPin = io::P::B2, bool pullup = false>
struct HardwareConfig {
	static constexpr auto FREQ = freq;
	static constexpr auto MODE = mode;
	static constexpr auto SIDE = side;
	static constexpr auto BIT_ORDER = bitOrder;
	static constexpr auto SS_PIN = ssPin;
	static constexpr auto PULLUP = pullup;
};

template <io::P sckPin, io::P misoPin, io::P mosiPin, io::P ssPin, std::uint32_t freq = 100'000,
          Mode mode = Mode::MODE_0, BitOrder bitOrder = BitOrder::MSB_FIRST, std::uint8_t bits = 8, bool pullup = false>
struct SoftwareConfig {
	static constexpr auto SCK_PIN = sckPin;
	static constexpr auto MISO_PIN = misoPin;
	static constexpr auto MOSI_PIN = mosiPin;
	static constexpr auto SS_PIN = ssPin;
	static constexpr auto FREQ = freq;
	static constexpr auto MODE = mode;
	static constexpr auto BIT_ORDER = bitOrder;
	static constexpr auto BITS = bits;
	static constexpr auto PULLUP = pullup;
};

} // namespace spi