tim.h

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#pragma once
#ifndef DSY_TIM_H
#define DSY_TIM_H
 
#include <cstdint>
#include "stm32h7xx_hal.h"
 
namespace daisy
{
class TimerHandle
{
  public:
    struct Config
    {
        enum class Peripheral
        {
            TIM_2 = 0, 
            TIM_3,     
            TIM_4,     
            TIM_5,     
        };
 
        enum class CounterDir
        {
            UP = 0,
            DOWN,
        };
 
        Peripheral periph; 
        CounterDir dir;    
        uint32_t period;
        bool     enable_irq; 
        /* @brief Constructor for default states */
        Config()
        : periph(Peripheral::TIM_2),
          dir(CounterDir::UP),
          period(0xffffffff),
          enable_irq(false)
        {
        }
    };
 
    enum class Result
    {
        OK,
        ERR,
    };
 
    typedef void (*PeriodElapsedCallback)(void* data);
 
    TimerHandle() : pimpl_(nullptr) {}
    TimerHandle(const TimerHandle& other) = default;
    TimerHandle& operator=(const TimerHandle& other) = default;
    ~TimerHandle() {}
 
    Result Init(const Config& config);
 
    Result DeInit();
 
    const Config& GetConfig() const;
 
    Result SetPeriod(uint32_t ticks);
 
    Result SetPrescaler(uint32_t val);
 
    Result Start();
 
    Result Stop();
 
    uint32_t GetFreq();
 
    uint32_t GetTick();
 
    uint32_t GetMs();
 
    uint32_t GetUs();
 
    void DelayTick(uint32_t del);
 
    void DelayMs(uint32_t del);
 
    void DelayUs(uint32_t del);
 
    void SetCallback(PeriodElapsedCallback cb, void* data = nullptr);
 
    class Impl;
 
  private:
    Impl* pimpl_;
};
 
} // namespace daisy
 
#endif