opt3001.h

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/*
 * Copyright (C) 2019 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 "kernel_defines.h"
 
#ifdef __cplusplus
extern "C" {
#endif

#define OPT3001_CONVERSION_TIME_100_MS   (0x0000) 
#define OPT3001_CONVERSION_TIME_800_MS   (0x0800) 

#ifndef CONFIG_OPT3001_I2C_ADDRESS
#define CONFIG_OPT3001_I2C_ADDRESS   (0x45)
#endif

#if IS_ACTIVE(CONFIG_OPT3001_CONVERSION_TIME_100)
#define CONFIG_OPT3001_CONVERSION_TIME   OPT3001_CONVERSION_TIME_100_MS
#elif IS_ACTIVE(CONFIG_OPT3001_CONVERSION_TIME_800)
#define CONFIG_OPT3001_CONVERSION_TIME   OPT3001_CONVERSION_TIME_800_MS
#endif
 
#ifndef CONFIG_OPT3001_CONVERSION_TIME
#define CONFIG_OPT3001_CONVERSION_TIME   OPT3001_CONVERSION_TIME_800_MS
#endif

typedef struct {
    i2c_t i2c_dev; 
    uint8_t i2c_addr; 
} opt3001_params_t;

typedef struct {
    opt3001_params_t params; 
} opt3001_t;

enum {
    OPT3001_OK,         
    OPT3001_ERROR_BUS,  
    OPT3001_ERROR_DEV,  
    OPT3001_ERROR       
};

int opt3001_init(opt3001_t *dev, const opt3001_params_t *params);

int opt3001_reset(const opt3001_t *dev);

int opt3001_set_active(const opt3001_t *dev);

int opt3001_read_lux(const opt3001_t *dev, uint32_t *convl);
 
#ifdef __cplusplus
}
#endif