tsl4531x.h

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/*
 * Copyright (C) 2018 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"
 
#ifdef __cplusplus
extern "C" {
#endif

typedef enum {
    TSL4531X_INTEGRATE_400MS = 0,       /* 0b00 */
    TSL4531X_INTEGRATE_200MS = 1,       /* 0b01 */
    TSL4531X_INTEGRATE_100MS = 2,       /* 0b10 */
}tsl4531x_intgn_time_t;

#define TSL45311_PARTNO                  (0x8)
#define TSL45313_PARTNO                  (0x9)
#define TSL45315_PARTNO                  (0xA)
#define TSL45317_PARTNO                  (0xB)

#define TSL45311_ADDR                    (0x39)
#define TSL45313_ADDR                    (0x39)
#define TSL45315_ADDR                    (0x29)
#define TSL45317_ADDR                    (0x29)

typedef struct {
    i2c_t i2c_dev;                              
    i2c_t i2c_addr;                             
    tsl4531x_intgn_time_t integration_time;     
    uint8_t low_power_mode : 1;                 
    uint8_t part_number;                        
} tsl4531x_params_t;

typedef struct {
    i2c_t i2c_dev;                              
    i2c_t i2c_addr;                             
    tsl4531x_intgn_time_t integration_time;     
    uint8_t low_power_mode : 1;                 
    uint8_t high_power_mode_started_up : 1;     
    uint32_t sample_start_time;                 
} tsl4531x_t;

int tsl4531x_init(tsl4531x_t *dev, const tsl4531x_params_t *params);

int tsl4531x_set_low_power_mode(tsl4531x_t *dev, uint8_t low_power_on);

int tsl4531x_start_sample(tsl4531x_t *dev);

uint32_t  tsl4531x_time_until_sample_ready(tsl4531x_t *dev);

int tsl4531x_get_sample(const tsl4531x_t *dev);

int tsl4531x_simple_read(tsl4531x_t *dev);
 
#ifdef __cplusplus
}
#endif