removing prefix LL_ from class/struct names under f4ll namespace

components/f4ll/inc/crchandler.h

@@ -0,0 +1,89 @@
+/*
+ * ll_crchandler.h
+ *
+ *  Created on: Oct 26, 2019
+ *      Author: compi
+ */
+
+#ifndef LL_CRCHANDLER_H_
+#define LL_CRCHANDLER_H_
+#include <inttypes.h>
+#include <platform/dma_ll.h>
+#include "f4ll/dmahelper.h"
+#include "singleton.h"
+
+extern "C" void _HandleCrcDmaIrq(void);
+
+namespace f4ll {
+
+class CrcHandler : public Singleton<CrcHandler>
+{
+	friend class Singleton<CrcHandler>;
+
+public:
+	struct ICallback
+	{
+		virtual void CrcSucceeded(uintptr_t callbackParam, uint32_t crc, uint8_t task) = 0;
+		virtual void CrcFailed(uintptr_t callbackParam, uint32_t crc, uint8_t task) = 0;
+	};
+
+	class SlotBase
+	{
+		friend class CrcHandler;
+	public:
+		struct CrcTask {
+			void const * volatile     m_address;			// changed to nullptr when execution starts
+			uint16_t volatile         m_wordCount;
+			ICallback                *m_callback;
+			uintptr_t                 m_callbackParam;
+		};
+
+	private:
+		SlotBase *m_next = nullptr;
+		uint8_t   m_taskCount;
+
+		virtual CrcTask& operator[](int index) = 0;
+
+	protected:
+		SlotBase(unsigned int taskCount) : m_taskCount(taskCount) {}
+		SlotBase() = delete;
+		SlotBase(SlotBase const &other) = delete;
+	};
+
+	template <uint8_t n> class Slot : public SlotBase
+	{
+	public:
+		Slot() : SlotBase(n) {}
+		virtual CrcTask& operator[](int index) { return m_tasks[index]; }
+
+	private:
+		Slot::CrcTask m_tasks[n];
+	};
+
+	void     AttachSlot(SlotBase &slot);
+	bool     Enqueue(SlotBase &slot, uint8_t task, void const *address, uint16_t len, ICallback *cb, uintptr_t cbParam);
+	uint32_t Compute(SlotBase &slot, uint8_t task, void const *address, uint16_t len);
+
+	bool     IsActive(SlotBase &slot, uint8_t task) const;
+	bool     IsQueued(SlotBase &slot, uint8_t task) const;
+	bool     IsRunning(SlotBase &slot, uint8_t task) const;
+
+	void DmaTransferCompleted(void);
+
+private:
+	CrcHandler(DMA_TypeDef *dma, uint32_t stream);
+
+	friend void ::_HandleCrcDmaIrq(void);
+	void StartNextTask(void);
+	void WaitResults(SlotBase &slot, uint8_t task) const;
+
+	DmaHelper               m_dma;
+	SlotBase * volatile     m_firstSlot = nullptr;
+	SlotBase * volatile     m_activeSlot = nullptr;
+	int	volatile            m_activeTask;
+};
+
+
+}	//	namespace f4ll
+
+#endif /* LL_CRCHANDLER_H_ */