hdc1000.h

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/*
 * Copyright (C) 2014 PHYTEC Messtechnik GmbH
 *               2017 Freie Universität Berlin
 *
 * 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 "hdc1000_regs.h"
 
#ifdef __cplusplus
extern "C"
{
#endif

#ifndef CONFIG_HDC1000_I2C_ADDRESS
#define CONFIG_HDC1000_I2C_ADDRESS           (0x43)
#endif

#ifndef CONFIG_HDC1000_CONVERSION_TIME
#define CONFIG_HDC1000_CONVERSION_TIME       (26000)
#endif

enum {
    HDC1000_OK     = 0,     
    HDC1000_NODEV  = -1,    
    HDC1000_NOBUS  = -2,    
    HDC1000_BUSERR = -3     
};

typedef enum {
    HDC1000_11BIT = (HDC1000_TRES11 | HDC1000_HRES11),  
    HDC1000_14BIT = (HDC1000_TRES14 | HDC1000_HRES14)   
} hdc1000_res_t;

typedef struct {
    i2c_t i2c;               
    uint8_t addr;            
    hdc1000_res_t res;       
    uint32_t renew_interval; 
} hdc1000_params_t;

typedef struct {
    hdc1000_params_t p;     
} hdc1000_t;

int hdc1000_init(hdc1000_t *dev, const hdc1000_params_t *params);

int hdc1000_trigger_conversion(const hdc1000_t *dev);

int hdc1000_get_results(const hdc1000_t *dev, int16_t *temp, int16_t *hum);

int hdc1000_read(const hdc1000_t *dev, int16_t *temp, int16_t *hum);

int hdc1000_read_cached(const hdc1000_t *dev, int16_t *temp, int16_t *hum);
 
#ifdef __cplusplus
}
#endif