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#pragma once
#include <cstddef>
#include <cstdint>
#include <FreeRTOS.h>
#include <semphr.h>
#include <task.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;
};
SpiMaster(const SpiModule spi, const Parameters& params);
SpiMaster(const SpiMaster&) = delete;
SpiMaster& operator=(const SpiMaster&) = delete;
SpiMaster(SpiMaster&&) = delete;
SpiMaster& operator=(SpiMaster&&) = delete;
bool Init();
bool Write(uint8_t pinCsn, const uint8_t* data, size_t size);
bool Read(uint8_t pinCsn, uint8_t* cmd, size_t cmdSize, uint8_t* data, size_t dataSize);
bool WriteCmdAndBuffer(uint8_t pinCsn, const uint8_t* cmd, size_t cmdSize, const uint8_t* data, size_t dataSize);
void OnStartedEvent();
void OnEndEvent();
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);
void PrepareRx(const volatile uint32_t bufferAddress, const volatile size_t size);
NRF_SPIM_Type* spiBaseAddress;
uint8_t pinCsn;
SpiMaster::SpiModule spi;
SpiMaster::Parameters params;
volatile uint32_t currentBufferAddr = 0;
volatile size_t currentBufferSize = 0;
volatile TaskHandle_t taskToNotify;
SemaphoreHandle_t mutex = nullptr;
};
}
}
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