72 lines
1.5 KiB
C++
72 lines
1.5 KiB
C++
/*
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* interrupt.h
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*
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* Created on: Aug 29, 2019
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* Author: abody
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*/
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#ifndef CRC_HANDLER_H_
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#define CRC_HANDLER_H_
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#include <inttypes.h>
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#ifdef HAVE_CONFIG
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#include "config.h"
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#endif // HAVE_CONFIG
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#include <platform/crc_ll.h>
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#include <f4ll_cpp/dmahelper.h>
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namespace f4ll_cpp
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{
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class CrcScheduler {
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public:
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struct ICrcCallback {
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virtual void CrcCalculationCompleted(void*, uint32_t, uint8_t) = 0;
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};
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struct crctask_t {
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void * volatile address;
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uint16_t wordCount;
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ICrcCallback* callback;
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void *callbackParam;
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};
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struct crcslot_t {
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uint16_t count;
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struct crcslot_t *next;
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struct crctask_t *tasks;
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};
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CrcScheduler(CRC_TypeDef *crcUnit, DMA_TypeDef *dma, uint32_t stream);
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uint8_t GetActiveTask(struct crcslot_t **slot_out);
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bool IsTaskQueued(struct crcslot_t *slot, uint8_t task);
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bool IsTaskBusy(struct crcslot_t *slot, uint8_t task);
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void WaitResults(struct crcslot_t *slot, uint8_t task);
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void AttachTasks(struct crcslot_t *slot, struct crctask_t *tasks, uint8_t taskCount);
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uint8_t Enqueue(struct crcslot_t *slot, uint8_t task, void *address, uint16_t len,
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ICrcCallback* callback, void* callbackParam);
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uint32_t Compute(struct crcslot_t *slot, uint8_t task, void *address, uint16_t len);
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static void HandleDmaIrq(void *param) { reinterpret_cast<CrcScheduler*>(param)->_HandleDmaIrq(); }
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void _HandleDmaIrq();
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private:
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void StartNextTask();
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CRC_TypeDef *m_crcUnit;
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DmaHelper m_dma;
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volatile crcslot_t *m_activeSlot;
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volatile uint8_t m_activeTask;
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crcslot_t *m_firstSlot;
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};
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} // f4ll_cpp
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#endif /* CRC_HANDLER_H_ */
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