twr_lis2dh12.h

#ifndef _TWR_LIS2DH12_H
#define _TWR_LIS2DH12_H
 
#include <twr_i2c.h>
#include <twr_tick.h>
#include <twr_scheduler.h>
 
 
 
typedef enum
{
    TWR_LIS2DH12_EVENT_ERROR = 0,
 
    TWR_LIS2DH12_EVENT_UPDATE = 1,
 
    TWR_LIS2DH12_EVENT_ALARM = 2
 
} twr_lis2dh12_event_t;
 
 
typedef enum
{
    TWR_LIS2DH12_RESOLUTION_10BIT = 0,
 
    TWR_LIS2DH12_RESOLUTION_12BIT = 1,
 
    TWR_LIS2DH12_RESOLUTION_8BIT = 2
 
} twr_lis2dh12_resolution_t;
 
typedef enum
{
    TWR_LIS2DH12_SCALE_2G = 0,
 
    TWR_LIS2DH12_SCALE_4G = 1,
 
    TWR_LIS2DH12_SCALE_8G = 2,
 
    TWR_LIS2DH12_SCALE_16G = 3,
 
} twr_lis2dh12_scale_t;
 
 
typedef struct
{
    int16_t x_axis;
 
    int16_t y_axis;
 
    int16_t z_axis;
 
} twr_lis2dh12_result_raw_t;
 
 
typedef struct
{
    float x_axis;
 
    float y_axis;
 
    float z_axis;
 
} twr_lis2dh12_result_g_t;
 
 
typedef struct
{
    float threshold;
    uint8_t duration;
    bool x_low;
    bool x_high;
    bool y_low;
    bool y_high;
    bool z_low;
    bool z_high;
 
} twr_lis2dh12_alarm_t;
 
 
typedef struct twr_lis2dh12_t twr_lis2dh12_t;
 
 
typedef enum
{
    TWR_LIS2DH12_STATE_ERROR = -1,
    TWR_LIS2DH12_STATE_INITIALIZE = 0,
    TWR_LIS2DH12_STATE_MEASURE = 1,
    TWR_LIS2DH12_STATE_READ = 2,
    TWR_LIS2DH12_STATE_UPDATE = 3
 
} twr_lis2dh12_state_t;
 
struct twr_lis2dh12_t
{
    twr_i2c_channel_t _i2c_channel;
    uint8_t _i2c_address;
    void (*_event_handler)(twr_lis2dh12_t *, twr_lis2dh12_event_t, void *);
    void *_event_param;
    twr_tick_t _update_interval;
    twr_lis2dh12_state_t _state;
    bool _accelerometer_valid;
    twr_lis2dh12_result_raw_t _raw;
    bool _alarm_active;
    bool _irq_flag;
    twr_scheduler_task_id_t _task_id_interval;
    twr_scheduler_task_id_t _task_id_measure;
    bool _measurement_active;
    twr_lis2dh12_resolution_t _resolution;
    twr_lis2dh12_scale_t _scale;
};
 
 
 
bool twr_lis2dh12_init(twr_lis2dh12_t *self, twr_i2c_channel_t i2c_channel, uint8_t i2c_address);
 
 
void twr_lis2dh12_set_event_handler(twr_lis2dh12_t *self, void (*event_handler)(twr_lis2dh12_t *, twr_lis2dh12_event_t, void *), void *event_param);
 
 
void twr_lis2dh12_set_update_interval(twr_lis2dh12_t *self, twr_tick_t interval);
 
 
bool twr_lis2dh12_measure(twr_lis2dh12_t *self);
 
 
bool twr_lis2dh12_get_result_raw(twr_lis2dh12_t *self, twr_lis2dh12_result_raw_t *result_raw);
 
 
bool twr_lis2dh12_get_result_g(twr_lis2dh12_t *self, twr_lis2dh12_result_g_t *result_g);
 
 
bool twr_lis2dh12_set_alarm(twr_lis2dh12_t *self, twr_lis2dh12_alarm_t *alarm);
 
 
bool twr_lis2dh12_set_resolution(twr_lis2dh12_t *self, twr_lis2dh12_resolution_t resolution);
 
 
bool twr_lis2dh12_set_scale(twr_lis2dh12_t *self, twr_lis2dh12_scale_t scale);
 
 
#endif // _TWR_LIS2DH12_H