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#pragma once
#include <cstdint>
#include <cstddef>
#include <array>
#include <atomic>
#include "BufferProvider.h"
namespace Pinetime {
namespace Drivers {
class SpiMaster {
public:;
enum class SpiModule : uint8_t {SPI0, SPI1};
enum class BitOrder : uint8_t {Msb_Lsb, Lsb_Msb};
enum class Modes : uint8_t {Mode0, Mode1, Mode2, Mode3};
enum class Frequencies : uint8_t {Freq8Mhz};
struct Parameters {
BitOrder bitOrder;
Modes mode;
Frequencies Frequency;
uint8_t pinSCK;
uint8_t pinMOSI;
uint8_t pinMISO;
uint8_t pinCSN;
};
SpiMaster(const SpiModule spi, const Parameters& params);
bool Init();
bool Write(const uint8_t* data, size_t size);
void OnStartedEvent(BufferProvider& provider);
void OnEndEvent(BufferProvider& provider);
void Sleep();
void Wakeup();
private:
void SetupWorkaroundForFtpan58(NRF_SPIM_Type *spim, uint32_t ppi_channel, uint32_t gpiote_channel);
void DisableWorkaroundForFtpan58(NRF_SPIM_Type *spim, uint32_t ppi_channel, uint32_t gpiote_channel);
void PrepareTx(const volatile uint32_t bufferAddress, const volatile size_t size);
NRF_SPIM_Type * spiBaseAddress;
uint8_t pinCsn;
SpiMaster::SpiModule spi;
SpiMaster::Parameters params;
volatile bool busy = false;
volatile uint32_t currentBufferAddr = 0;
volatile size_t currentBufferSize = 0;
};
}
}
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