#ifndef __ADC_DRIVER_H__
#define __ADC_DRIVER_H__

#include <cstdint>
#include "bus_core.h"

enum class AdcPort : uint8_t {
    _0 = 0,
    _1, _2,
    MAX
};

struct AdcConfig {
    uint32_t clock_prescaler = 0;
    uint32_t resolution = 0;
    uint32_t sample_time = 0;
    bool use_dma = false;
    bool use_interrupt = false;
};

class AdcBus {
public:
    explicit AdcBus(AdcPort port);
    ~AdcBus();

    AdcBus(const AdcBus &) = delete;
    AdcBus &operator=(const AdcBus &) = delete;

    RetCode init(const AdcConfig &config);
    RetCode deinit();
    RetCode channel_config(uint8_t channel, uint8_t rank);
    RetCode start_conversion(uint8_t channel);
    uint16_t read();
    float read_voltage();

private:
    AdcPort port_;
    AdcConfig config_;
    bool initialized_ = false;
};

void adc_irq_handler();

#endif