driver-ms56xx/include/sta/MS5607.hpp

#ifndef STA_SENSORS_MS5607_HPP
#define STA_SENSORS_MS5607_HPP

#include<sta/spi/device.hpp>
#include<sta/endian.hpp>
#include<sta/stm32/delay.hpp>

namespace sta {
    // Class to represent a MS5607 pressure sensor which is used with SPI
    class MS5607 {
    public:
        // Different OSR levels for the sensor
        enum OsrLevel {
            _256 = 0,
            _512 = 1,
            _1024 = 2,
            _2048 = 3,
            _4096 = 4
        };

        MS5607(SpiDevice* device, OsrLevel osr=OsrLevel::_1024);

        // Getter for pressure
        int32_t getPressure();
        // Getter for temperature
        int32_t getTemperature();

        void changeOsrLevel(OsrLevel newOsr) { 
            // Don't I need to write this to the sensor?
            this->osr_ = newOsr; 
        }

    private:
        // STA internal object for SPi abstraction
        SpiDevice* device_;
        OsrLevel osr_;

        // 6 Different constants; Includes Offsets, references etc.
        uint16_t sens, off, tcs, tco, t_ref, tempsens;
        
        // All possible commands to send to the sensor
        enum Operations {
            RESET = 0x1E,
            READ_PROM = 0xA2,
            D1_CONVERSION = 0x40,
            D2_CONVERSION = 0x50,
            ADC_RESULT = 0x00
        };

        // Request pure ADC converted values from the sensor
        // Calculations with offset required
        uint32_t readPressure();
        uint32_t readTemp();
        // Calculate pure ADC values to final pressure/temperature values
        int32_t calculatePressure(uint32_t d1, int32_t dT);
        int32_t calculateTemperature(uint32_t d2);

        void reset();
        void readPROM();

        // Constants for waiting
        const char RESET_DELAY = 2800; // in uS
        const char ADC_DELAY = 8220; // in uS; not sure if thats correct since the datasheet doesn't say anything explicitly
    };

}

#endif // ifndef STA_SENSORS_MS5607_HPP