bcm2835_spi.h

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#pragma once
 
#include <stdio.h>
#include <stdint.h>
#include <bcm2835.h>
 
#define MSBFIRST BCM2835_SPI_BIT_ORDER_MSBFIRST
#define SPI_MODE0 BCM2835_SPI_MODE0
#define SPI_MODE1 BCM2835_SPI_MODE1
#define SPI_MODE2 BCM2835_SPI_MODE2
#define SPI_MODE3 BCM2835_SPI_MODE3
 
struct SPISettings;
 
class SPIClass
{
public:
    void beginTransaction(SPISettings settings);
    void endTransaction();
    uint8_t transfer(uint8_t);
};
 
struct SPISettings
{
    friend class SPIClass;
    SPISettings(uint32_t s, bcm2835SPIBitOrder o, bcm2835SPIMode m);
 
    uint32_t speed;
    bcm2835SPIBitOrder order;
    bcm2835SPIMode mode;
};
 
extern SPIClass SPI;