twr_ds18b20.h

#ifndef _TWR_DS18B20_H
#define _TWR_DS18B20_H
 
#include <twr_tick.h>
#include <twr_module_sensor.h>
#include <twr_scheduler.h>
#include <twr_onewire.h>
 
 
 
typedef enum
{
    TWR_DS18B20_EVENT_ERROR = -1,
 
    TWR_DS18B20_EVENT_UPDATE = 0,
 
} twr_ds18b20_event_t;
 
 
typedef struct twr_ds18b20_t twr_ds18b20_t;
typedef struct twr_ds18b20_sensor_t twr_ds18b20_sensor_t;
 
 
typedef enum
{
    TWR_DS18B20_STATE_ERROR = -1,
    TWR_DS18B20_STATE_PREINITIALIZE = 0,
    TWR_DS18B20_STATE_INITIALIZE = 1,
    TWR_DS18B20_STATE_READY = 2,
    TWR_DS18B20_STATE_MEASURE = 3,
    TWR_DS18B20_STATE_READ = 4,
    TWR_DS18B20_STATE_RESULTS = 5
 
} twr_ds18b20_state_t;
 
typedef enum
{
    TWR_DS18B20_RESOLUTION_BITS_9 = 0,
    TWR_DS18B20_RESOLUTION_BITS_10 = 1,
    TWR_DS18B20_RESOLUTION_BITS_11 = 2,
    TWR_DS18B20_RESOLUTION_BITS_12 = 3
 
} twr_ds18b20_resolution_bits_t;
 
struct twr_ds18b20_sensor_t
{
    int16_t _temperature_raw;
    uint64_t _device_address;
    bool _temperature_valid;
};
 
struct twr_ds18b20_t
{
    twr_scheduler_task_id_t _task_id_interval;
    twr_scheduler_task_id_t _task_id_measure;
    void (*_event_handler)(twr_ds18b20_t *, uint64_t _device_address, twr_ds18b20_event_t, void *);
    void *_event_param;
    bool _measurement_active;
    twr_tick_t _update_interval;
    twr_ds18b20_state_t _state;
 
    twr_ds18b20_sensor_t *_sensor;
    int _sensor_count;
    int _sensor_found;
 
    twr_ds18b20_resolution_bits_t _resolution;
 
    bool _power;
    bool _power_dynamic;
    twr_onewire_t *_onewire;
};
 
 
 
 
void twr_ds18b20_init_single(twr_ds18b20_t *self, twr_ds18b20_resolution_bits_t resolution);
 
 
void twr_ds18b20_init_multiple(twr_ds18b20_t *self, twr_ds18b20_sensor_t *sensors, int sensor_count, twr_ds18b20_resolution_bits_t resolution);
 
 
void twr_ds18b20_init(twr_ds18b20_t *self, twr_onewire_t *onewire, twr_ds18b20_sensor_t *sensors, int sensor_count, twr_ds18b20_resolution_bits_t resolution);
 
 
void twr_ds18b20_set_event_handler(twr_ds18b20_t *self, void (*event_handler)(twr_ds18b20_t *, uint64_t _device_address, twr_ds18b20_event_t, void *), void *event_param);
 
 
void twr_ds18b20_set_update_interval(twr_ds18b20_t *self, twr_tick_t interval);
 
 
bool twr_ds18b20_measure(twr_ds18b20_t *self);
 
 
bool twr_ds18b20_get_temperature_raw(twr_ds18b20_t *self, uint64_t device_address, int16_t *raw);
 
 
bool twr_ds18b20_get_temperature_celsius(twr_ds18b20_t *self, uint64_t _device_address, float *celsius);
 
 
int twr_ds18b20_get_index_by_device_address(twr_ds18b20_t *self, uint64_t device_address);
 
 
uint64_t twr_ds182b0_get_short_address(twr_ds18b20_t *self, uint8_t index);
 
 
int twr_ds18b20_get_sensor_found(twr_ds18b20_t *self);
 
 
void twr_ds18b20_rescan(twr_ds18b20_t *self);
 
 
void twr_ds18b20_set_power_dynamic(twr_ds18b20_t *self, bool on);
 
 
#endif // _TWR_DS18B20_H