bmp280.hpp

/*
 * Author: Jon Trulson <jtrulson@ics.com>
 * Copyright (c) 2016-2017 Intel Corporation.
 *
 * The MIT License
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
#pragma once

#include <string>
#include "bmp280.h"

#include "interfaces/iPressureSensor.hpp"
#include "interfaces/iTemperatureSensor.hpp"

namespace upm {

    class BMP280 : public ITemperatureSensor, public IPressureSensor {
    public:

        BMP280(int bus=BMP280_DEFAULT_I2C_BUS, int addr=BMP280_DEFAULT_ADDR,
               int cs=-1);

        virtual ~BMP280();

        virtual void update();

        uint8_t getChipID();

        void reset();

        float getTemperature(bool fahrenheit=false);

        float getPressure();

        void setSeaLevelPreassure(float seaLevelhPA=1013.25);

        float getAltitude();

        virtual void setUsageMode(BMP280_USAGE_MODE_T mode);

        void setOversampleRateTemperature(BMP280_OSRS_T_T rate);

        void setOversampleRatePressure(BMP280_OSRS_P_T rate);

        void setTimerStandby(BMP280_T_SB_T tsb);

        void setFilter(BMP280_FILTER_T filter);

        void setMeasureMode(BMP280_MODES_T mode);


        // Interface support
        const char *getModuleName()
        {
            return "BMP280";
        };

        int getTemperatureCelsius()
        {
            return int(getTemperature(false));
        };

        int getPressurePa()
        {
            return int(getPressure());
        };

    protected:
        bmp280_context m_bmp280;

        uint8_t getStatus();

        uint8_t readReg(uint8_t reg);

        int readRegs(uint8_t reg, uint8_t *buffer, int len);

        void writeReg(uint8_t reg, uint8_t val);

    private:
        /* Disable implicit copy and assignment operators */
        BMP280(const BMP280&) = delete;
        BMP280 &operator=(const BMP280&) = delete;
    };
}