SPI.h

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#pragma once
 
#include "Arduino.h"
#include "api/HardwareSPI.h"
#include "hardware/spi.h"

class PhyduinoSPI : public arduino::HardwareSPI {
public:
    PhyduinoSPI(spi_inst_t* spi, pin_size_t sck, pin_size_t mosi, pin_size_t miso)
        : spi_(spi), sck_(sck), mosi_(mosi), miso_(miso) {}

    void begin() override;

    void end() override;

    void beginTransaction(arduino::SPISettings settings) override;

    void endTransaction() override {}

    uint8_t transfer(uint8_t data) override;

    uint16_t transfer16(uint16_t data) override;

    void transfer(void* buffer, size_t count) override;

    void usingInterrupt(int) override {}     
    void notUsingInterrupt(int) override {}  
    void attachInterrupt() override {}       
    void detachInterrupt() override {}       
 
private:
    spi_inst_t* spi_;
    pin_size_t sck_, mosi_, miso_;
    arduino::SPISettings settings_;
    bool lsb_first_ = false;
};

extern PhyduinoSPI SPI;