max30100.hpp

/*
 * Author: Noel Eck <noel.eck@intel.com>
 * Copyright (c) 2015 Intel Corporation.
 *
 * 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 <iostream>

#include "mraa/i2c.h"
#include "max30100.h"

namespace upm {

/* Callback class for continuously reading samples */
class Callback {
    public:
        virtual ~Callback() { }
        /* Default run method, called for each new sample in continous
         * sampling mode.
         * Override this method */
        virtual void run(max30100_value samp)
        { std::cout << "Base sample IR: " << samp.IR << " R: " << samp.R << std::endl; }
};

class MAX30100 {
    public:
        MAX30100(int16_t i2c_bus);

        virtual ~MAX30100() {};

        max30100_value sample();

        void sample_continuous(int gpio_pin, bool buffered, Callback *cb = NULL);

        void sample_stop();

        uint8_t read(MAX30100_REG reg);

        void write(MAX30100_REG reg, uint8_t wr_data);

        uint16_t version();

        float temperature();

        void mode(MAX30100_MODE mode);

        MAX30100_MODE mode();

        void high_res_enable(bool enable);

        bool high_res_enable();

        void sample_rate(MAX30100_SR sample_rate);

        MAX30100_SR sample_rate();

        void pulse_width(MAX30100_LED_PW pulse_width);

        MAX30100_LED_PW pulse_width();

        void current(MAX30100_LED_CURRENT ir, MAX30100_LED_CURRENT r);

        MAX30100_LED_CURRENT current_ir();

        MAX30100_LED_CURRENT current_r();

        void reset();

        void sleep(bool sleep);

        /* Callback pointer available for a user-specified callback */
        Callback *_callback;
    private:
        /* base Callback instance to use if none provided */
        Callback _default_callback;

        /* device context struct */
        max30100_context* _dev;
};
}