bmp180.h

/*
 * Author: Yevgeniy Kiveisha <yevgeniy.kiveisha@intel.com>
 * Contributions: Jon Trulson <jtrulson@ics.com>
 * Copyright (c) 2014 Intel Corporation.
 *
 * Credits to Adafruit.
 * Based on Adafruit BMP180 library.
 *
 * 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 <mraa/i2c.hpp>
#include "upm/iPressureSensor.h"
#include "upm/iTemperatureSensor.h"

#define BMP180_ADDR               0x77 // device address

/* MODES */
#define BMP180_ULTRALOWPOWER 0
#define BMP180_STANDARD      1
#define BMP180_HIGHRES       2
#define BMP180_ULTRAHIGHRES  3


namespace upm {

class BMP180 : public IPressureSensor, public ITemperatureSensor {
    public:
        BMP180 (int bus, int devAddr=BMP180_ADDR, uint8_t mode=BMP180_ULTRAHIGHRES);

        ~BMP180 ();

        uint32_t getPressureRaw();

        int getPressurePa();

        uint16_t getTemperatureRaw();
        int getTemperatureCelcius();

        bool isAvailable();
        const char* getModuleName() { return m_name.c_str(); }

    private:
        std::string m_name;

        int m_controlAddr;
        int m_bus;
        mraa::I2c* m_i2c;
        mraa::Result status;

        uint8_t oversampling;
        int16_t ac1, ac2, ac3, b1, b2, mb, mc, md;
        uint16_t ac4, ac5, ac6;

        int32_t b5;

        bool getCalibrationData();
};

}