pwm.hpp

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#ifndef ELEC_C7222_DEVICES_PWM_HPP
#define ELEC_C7222_DEVICES_PWM_HPP
 
#include <cstdint>
 
#include "non_copyable.hpp"
 
namespace c7222 {
 
class PwmOut : public NonCopyableNonMovable {
  public:
    struct Config {
        uint32_t pin_;
        float period_us{1000.0f};
        float duty_cycle{0.0f};
        bool enabled{true};
        bool active_low{false};
 
        explicit Config(uint32_t pin);
        bool Validate() const;
    };
 
    explicit PwmOut(uint32_t pin);
    explicit PwmOut(uint32_t pin, const Config& config);
 
    virtual ~PwmOut();
 
    void Configure(const Config& config);
    void SetPeriodUs(float period_us);
    void SetDutyCycle(float duty_cycle);
    void SetActiveLow(bool active_low);
    void Enable(bool on);
 
    uint32_t GetPin() const {
        return pin_;
    }
    Config GetConfig() const {
        return config_;
    }
 
  protected:
    void ApplyConfig();
 
    uint32_t pin_;
    Config config_;
};
 
} // namespace c7222
 
#endif // ELEC_C7222_DEVICES_PWM_HPP