hts221.h

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/*
 * Copyright (C) 2017 HAW Hamburg
 *
 * This file is subject to the terms and conditions of the GNU Lesser
 * General Public License v2.1. See the file LICENSE in the top level
 * directory for more details.
 */
 
#pragma once

 
#include <stdint.h>
 
#include "periph/i2c.h"
#include "hts221_regs.h"
 
#ifdef __cplusplus
extern "C" {
#endif

#define HTS221_I2C_ADDRESS           (0x5F)

typedef struct {
    i2c_t i2c;              
    uint8_t addr;           
    uint8_t avgx;           
    uint8_t rate;           
} hts221_params_t;

enum {
    HTS221_OK = 0,
    HTS221_ERROR,
    HTS221_NOBUS,
    HTS221_NODEV,
};

typedef struct {
    hts221_params_t p;      
    int16_t h0_rh;          
    int16_t h1_rh;          
    int16_t h0_t0_out;      
    int16_t h1_t0_out;      
    int16_t t0_degc;        
    int16_t t1_degc;        
    int16_t t0_out;         
    int16_t t1_out;         
} hts221_t;

int hts221_init(hts221_t *dev, const hts221_params_t *params);

int hts221_reboot(const hts221_t *dev);

int hts221_one_shot(const hts221_t *dev);

int hts221_set_rate(const hts221_t *dev, const uint8_t rate);

int hts221_power_on(const hts221_t *dev);

int hts221_power_off(const hts221_t *dev);

int hts221_get_state(const hts221_t *dev);

int hts221_read_humidity(const hts221_t *dev, uint16_t *val);

int hts221_read_temperature(const hts221_t *dev, int16_t *val);
 
#ifdef __cplusplus
}
#endif