barometric_sensor.h

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// SPDX-FileCopyrightText: © 2022 Embedded Artistry LLC <contact@embeddedartistry.com>
// SPDX-License-Identifier: MIT
 
#include <stdbool.h>
#include <stdint.h>
 
#pragma mark - Basic Interface -
 
typedef struct
{
    bool (*readPressure)(uint32_t* const pressure);
 
    bool (*readAltitude)(int32_t* const altitude);
 
    void (*setSeaLevelPressure)(uint32_t slp);
} BarometricSensor;
 
#pragma mark - Interface with Callback Support -
 
typedef void (*NewBarometricSampleCb)(uint32_t pressure, int32_t altitude);
 
typedef void (*BarometricErrorCb)(void);
 
typedef struct
{
    bool (*readPressure)(uint32_t* const pressure);
 
    bool (*readAltitude)(int32_t* const altitude);
 
    void (*setSeaLevelPressure)(uint32_t slp);
 
    void (*registerNewSampleCb)(const NewBarometricSampleCb callback);
 
    void (*unregisterNewSampleCb)(const NewBarometricSampleCb callback);
 
    void (*registerErrorCb)(const BarometricErrorCb callback);
 
    void (*unregisterErrorCb)(const BarometricErrorCb callback);
} BarometricSensor_withCb;
 
#pragma mark - Asynchronous Processing Support -
 
typedef struct
{
    bool (*readSample)(void);
 
    void (*setSeaLevelPressure)(uint32_t slp);
 
    void (*registerNewSampleCb)(const NewBarometricSampleCb callback);
 
    void (*unregisterNewSampleCb)(const NewBarometricSampleCb callback);
 
    void (*registerErrorCb)(const BarometricErrorCb callback);
 
    void (*unregisterErrorCb)(const BarometricErrorCb callback);
} BarometricSensor_asyncWithCb;