Attila Body
61fce5992e
subrepo: subdir: "components/f4ll" merged: "a4df325" upstream: origin: "ssh://git@codeberg.org/abody/f4ll.git" branch: "master" commit: "a4df325" git-subrepo: version: "0.4.9" origin: "???" commit: "???"
90 lines
2.2 KiB
C++
90 lines
2.2 KiB
C++
/*
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* ll_crc_handler.h
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*
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* Created on: Oct 26, 2019
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* Author: compi
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*/
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#pragma once
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#include <f4ll/dma_helper.h>
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#include <f4ll/singleton.h>
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#include <inttypes.h>
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#include <platform/dma_ll.h>
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namespace f4ll {
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class crc_handler : public singleton<crc_handler>
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{
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friend class singleton<crc_handler>;
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public:
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struct icallback
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{
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virtual void crc_succeeded(uintptr_t callback_param, uint32_t crc, uint8_t task) = 0;
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virtual void crc_failed(uintptr_t callback_param, uint32_t crc, uint8_t task) = 0;
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};
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class slot_base
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{
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friend class crc_handler;
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public:
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struct crc_task
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{
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void const *m_address; // changed to nullptr when execution starts
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uint16_t m_word_count;
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icallback *m_callback;
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uintptr_t m_callback_param;
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};
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private:
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slot_base volatile *m_next = nullptr;
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uint8_t m_task_count;
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virtual crc_task volatile &operator[](int index) volatile = 0;
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protected:
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slot_base(unsigned int task_count)
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: m_task_count(task_count)
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{
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}
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slot_base() = delete;
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slot_base(slot_base const &other) = delete;
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};
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template <uint8_t n> class slot : public slot_base
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{
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public:
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slot()
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: slot_base(n)
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{
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}
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virtual crc_task volatile &operator[](int index) volatile { return m_tasks[index]; }
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private:
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slot::crc_task m_tasks[n];
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};
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void attach_slot(slot_base &slot);
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bool enqueue(slot_base &slot, uint8_t task, void const *address, uint16_t len, icallback *cb, uintptr_t cb_param);
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uint32_t compute(slot_base &slot, uint8_t task, void const *address, uint16_t len);
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bool is_active(slot_base &slot, uint8_t task) const;
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bool is_queued(slot_base &slot, uint8_t task) const;
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bool is_running(slot_base &slot, uint8_t task) const;
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void dma_transfer_completed(void);
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private:
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crc_handler(DMA_TypeDef *dma, uint32_t stream);
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void start_next_task(void);
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void wait_results(slot_base &slot, uint8_t task) const;
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dma_helper m_dma;
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slot_base volatile *m_first_slot = nullptr;
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slot_base volatile *m_active_slot = nullptr;
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int volatile m_active_task;
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};
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} // namespace f4ll
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