Initial InfiniSim project

sim/drivers/TwiMaster.h

@@ -0,0 +1,41 @@
+#pragma once
+#include <FreeRTOS.h>
+//#include <semphr.h>
+#include <drivers/include/nrfx_twi.h> // NRF_TWIM_Type
+#include <cstdint>
+
+namespace Pinetime {
+  namespace Drivers {
+    class TwiMaster {
+    public:
+      enum class ErrorCodes { NoError, TransactionFailed };
+
+      TwiMaster(NRF_TWIM_Type* module, uint32_t frequency, uint8_t pinSda, uint8_t pinScl);
+
+      void Init();
+      ErrorCodes Read(uint8_t deviceAddress, uint8_t registerAddress, uint8_t* buffer, size_t size);
+      ErrorCodes Write(uint8_t deviceAddress, uint8_t registerAddress, const uint8_t* data, size_t size);
+
+      void Sleep();
+      void Wakeup();
+
+    private:
+//      ErrorCodes Read(uint8_t deviceAddress, uint8_t* buffer, size_t size, bool stop);
+//      ErrorCodes Write(uint8_t deviceAddress, const uint8_t* data, size_t size, bool stop);
+//      void FixHwFreezed();
+//      void ConfigurePins() const;
+
+      NRF_TWIM_Type* twiBaseAddress;
+//      SemaphoreHandle_t mutex = nullptr;
+      NRF_TWIM_Type* module;
+      uint32_t frequency;
+      uint8_t pinSda;
+      uint8_t pinScl;
+      static constexpr uint8_t maxDataSize {16};
+      static constexpr uint8_t registerSize {1};
+      uint8_t internalBuffer[maxDataSize + registerSize];
+      uint32_t txStartedCycleCount = 0;
+      static constexpr uint32_t HwFreezedDelay {161000};
+    };
+  }
+}