driver_htu21d.h

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#ifndef DRIVER_HTU21D_H
#define DRIVER_HTU21D_H
 
#include <stdio.h>
#include <stdint.h>
#include <string.h>
 
#ifdef __cplusplus
extern "C"{
#endif



typedef enum
{
    HTU21D_BOOL_FALSE = 0x00,        
    HTU21D_BOOL_TRUE  = 0x01,        
} htu21d_bool_t;

typedef enum
{
    HTU21D_MODE_HOLD_MASTER    = 0x00,        
    HTU21D_MODE_NO_HOLD_MASTER = 0x01,        
} htu21d_mode_t;

typedef enum
{
    HTU21D_STATUS_OVER_2P25 = 0x00,        
    HTU21D_STATUS_LESS_2P25 = 0x01,        
} htu21d_status_t;

typedef enum
{
    HTU21D_RESOLUTION_TEMP_11_BITS_RH_11_BITS = 0x03,        
    HTU21D_RESOLUTION_TEMP_12_BITS_RH_8_BITS  = 0x01,        
    HTU21D_RESOLUTION_TEMP_13_BITS_RH_10_BITS = 0x02,        
    HTU21D_RESOLUTION_TEMP_14_BITS_RH_12_BITS = 0x00,        
} htu21d_resolution_t;

typedef struct htu21d_handle_s
{
    uint8_t (*iic_init)(void);                                                                  
    uint8_t (*iic_deinit)(void);                                                                
    uint8_t (*iic_write_cmd)(uint8_t addr, uint8_t *buf, uint16_t len);                         
    uint8_t (*iic_read_cmd)(uint8_t addr, uint8_t *buf, uint16_t len);                          
    uint8_t (*iic_write)(uint8_t addr, uint8_t reg, uint8_t *buf, uint16_t len);                
    uint8_t (*iic_read)(uint8_t addr, uint8_t reg, uint8_t *buf, uint16_t len);                 
    uint8_t (*iic_read_with_scl)(uint8_t addr, uint8_t reg, uint8_t *buf, uint16_t len);        
    void (*delay_ms)(uint32_t ms);                                                              
    void (*debug_print)(const char *const fmt, ...);                                            
    uint8_t mode;                                                                               
    uint8_t resolution;                                                                         
    uint8_t inited;                                                                             
} htu21d_handle_t;

typedef struct htu21d_info_s
{
    char chip_name[32];                
    char manufacturer_name[32];        
    char interface[8];                 
    float supply_voltage_min_v;        
    float supply_voltage_max_v;        
    float max_current_ma;              
    float temperature_min;             
    float temperature_max;             
    uint32_t driver_version;           
} htu21d_info_t;



#define DRIVER_HTU21D_LINK_INIT(HANDLE, STRUCTURE)               memset(HANDLE, 0, sizeof(STRUCTURE))

#define DRIVER_HTU21D_LINK_IIC_INIT(HANDLE, FUC)                 (HANDLE)->iic_init = FUC

#define DRIVER_HTU21D_LINK_IIC_DEINIT(HANDLE, FUC)               (HANDLE)->iic_deinit = FUC

#define DRIVER_HTU21D_LINK_IIC_WRITE_CMD(HANDLE, FUC)            (HANDLE)->iic_write_cmd = FUC

#define DRIVER_HTU21D_LINK_IIC_READ_CMD(HANDLE, FUC)             (HANDLE)->iic_read_cmd = FUC

#define DRIVER_HTU21D_LINK_IIC_WRITE(HANDLE, FUC)                (HANDLE)->iic_write = FUC

#define DRIVER_HTU21D_LINK_IIC_READ(HANDLE, FUC)                 (HANDLE)->iic_read = FUC

#define DRIVER_HTU21D_LINK_IIC_READ_WITH_SCL(HANDLE, FUC)        (HANDLE)->iic_read_with_scl = FUC

#define DRIVER_HTU21D_LINK_DELAY_MS(HANDLE, FUC)                 (HANDLE)->delay_ms = FUC

#define DRIVER_HTU21D_LINK_DEBUG_PRINT(HANDLE, FUC)              (HANDLE)->debug_print = FUC



uint8_t htu21d_info(htu21d_info_t *info);

uint8_t htu21d_init(htu21d_handle_t *handle);

uint8_t htu21d_deinit(htu21d_handle_t *handle);

uint8_t htu21d_set_mode(htu21d_handle_t *handle, htu21d_mode_t mode);

uint8_t htu21d_get_mode(htu21d_handle_t *handle, htu21d_mode_t *mode);

uint8_t htu21d_soft_reset(htu21d_handle_t *handle);

uint8_t htu21d_read_temperature_humidity(htu21d_handle_t *handle,
                                         uint16_t *temperature_raw, float *temperature_s,
                                         uint16_t *humidity_raw, float *humidity_s
                                        );

uint8_t htu21d_read_temperature(htu21d_handle_t *handle, uint16_t *temperature_raw, float *temperature_s);

uint8_t htu21d_read_humidity(htu21d_handle_t *handle, uint16_t *humidity_raw, float *humidity_s);

uint8_t htu21d_set_resolution(htu21d_handle_t *handle, htu21d_resolution_t resolution);

uint8_t htu21d_get_resolution(htu21d_handle_t *handle, htu21d_resolution_t *resolution);

uint8_t htu21d_get_battery_status(htu21d_handle_t *handle, htu21d_status_t *status);

uint8_t htu21d_set_heater(htu21d_handle_t *handle, htu21d_bool_t enable);

uint8_t htu21d_get_heater(htu21d_handle_t *handle, htu21d_bool_t *enable);

uint8_t htu21d_set_disable_otp_reload(htu21d_handle_t *handle, htu21d_bool_t enable);

uint8_t htu21d_get_disable_otp_reload(htu21d_handle_t *handle, htu21d_bool_t *enable);

uint8_t htu21d_get_serial_number(htu21d_handle_t *handle, uint64_t *number);



uint8_t htu21d_set_reg(htu21d_handle_t *handle, uint8_t *buf, uint16_t len);

uint8_t htu21d_get_reg(htu21d_handle_t *handle, uint8_t *buf, uint16_t len);


 
#ifdef __cplusplus
}
#endif
 
#endif