otp538u.h

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/*
 * Author: Jon Trulson <jtrulson@ics.com>
 * Copyright (c) 2016 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 <stdlib.h>
#include <stdio.h>
#include <upm.h>
#include <mraa/aio.h>

#ifdef __cplusplus
extern "C" {
#endif

    typedef struct _otp538u_context
    {
        mraa_aio_context aioA;
        mraa_aio_context aioO;

        bool             debug;
        float            internalVRef;
        float            aref;
        int              vResistance;
        float            offsetVoltage;
        int              adcResolution;
    } *otp538u_context;


    otp538u_context otp538u_init(int pinA, int pinO, float aref);

    void otp538u_close(otp538u_context dev);

    upm_result_t otp538u_get_ambient_temperature(const otp538u_context dev,
                                                 float *temperature);

    upm_result_t otp538u_get_object_temperature(const otp538u_context dev,
                                                float *temperature);

    void otp538u_set_voltage_offset(const otp538u_context dev, float offset);

    void otp538u_set_output_resistence(const otp538u_context dev,
                                       int resistance);

    void otp538u_set_ivref(const otp538u_context dev, float vref);

    void otp538u_set_debug(const otp538u_context dev, bool enable);


#ifdef __cplusplus
}
#endif