twr_mpl3115a2.h

#ifndef _TWR_MPL3115A2_H
#define _TWR_MPL3115A2_H
 
#include <twr_i2c.h>
#include <twr_scheduler.h>
 
 
 
typedef enum
{
    TWR_MPL3115A2_EVENT_ERROR = 0,
 
    TWR_MPL3115A2_EVENT_UPDATE = 1
 
} twr_mpl3115a2_event_t;
 
 
typedef struct twr_mpl3115a2_t twr_mpl3115a2_t;
 
 
typedef enum
{
    TWR_MPL3115A2_STATE_ERROR = -1,
    TWR_MPL3115A2_STATE_INITIALIZE = 0,
    TWR_MPL3115A2_STATE_MEASURE_ALTITUDE = 1,
    TWR_MPL3115A2_STATE_READ_ALTITUDE = 2,
    TWR_MPL3115A2_STATE_MEASURE_PRESSURE = 3,
    TWR_MPL3115A2_STATE_READ_PRESSURE = 4,
    TWR_MPL3115A2_STATE_UPDATE = 5
 
} twr_mpl3115a2_state_t;
 
struct twr_mpl3115a2_t
{
    twr_i2c_channel_t _i2c_channel;
    uint8_t _i2c_address;
    twr_scheduler_task_id_t _task_id_interval;
    twr_scheduler_task_id_t _task_id_measure;
    void (*_event_handler)(twr_mpl3115a2_t *, twr_mpl3115a2_event_t, void *);
    void *_event_param;
    bool _measurement_active;
    twr_tick_t _update_interval;
    twr_mpl3115a2_state_t _state;
    twr_tick_t _tick_ready;
    bool _altitude_valid;
    bool _pressure_valid;
    uint8_t _reg_out_p_msb_altitude;
    uint8_t _reg_out_p_csb_altitude;
    uint8_t _reg_out_p_lsb_altitude;
    uint8_t _reg_out_t_msb_altitude;
    uint8_t _reg_out_t_lsb_altitude;
    uint8_t _reg_out_p_msb_pressure;
    uint8_t _reg_out_p_csb_pressure;
    uint8_t _reg_out_p_lsb_pressure;
    uint8_t _reg_out_t_msb_pressure;
    uint8_t _reg_out_t_lsb_pressure;
};
 
 
 
void twr_mpl3115a2_init(twr_mpl3115a2_t *self, twr_i2c_channel_t i2c_channel, uint8_t i2c_address);
 
 
void twr_mpl3115a2_deinit(twr_mpl3115a2_t *self);
 
 
void twr_mpl3115a2_set_event_handler(twr_mpl3115a2_t *self, void (*event_handler)(twr_mpl3115a2_t *, twr_mpl3115a2_event_t, void *), void *event_param);
 
 
void twr_mpl3115a2_set_update_interval(twr_mpl3115a2_t *self, twr_tick_t interval);
 
 
bool twr_mpl3115a2_measure(twr_mpl3115a2_t *self);
 
 
bool twr_mpl3115a2_get_altitude_meter(twr_mpl3115a2_t *self, float *meter);
 
 
bool twr_mpl3115a2_get_pressure_pascal(twr_mpl3115a2_t *self, float *pascal);
 
 
#endif // _TWR_MPL3115A2_H