si1133.h

Go to the documentation of this file.

/*
 * Copyright (C) 2020 iosabi
 *
 * 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 "periph/i2c.h"
 
#ifdef __cplusplus
extern "C" {
#endif

typedef enum {
    SI1133_OK           = 0,    
    SI1133_ERR_PARAMS   = -1,   
    SI1133_ERR_I2C      = -2,   
    SI1133_ERR_LOGIC    = -3,   
    SI1133_ERR_NODEV    = -4,   
    SI1133_ERR_OVERFLOW = -5,   
} si1133_ret_code_t;

typedef enum {
    SI1133_SENS_SMALL_IR    = 1u << 0,
    SI1133_SENS_MEDIUM_IR   = 1u << 1,
    SI1133_SENS_LARGE_IR    = 1u << 2,
    SI1133_SENS_WHITE       = 1u << 3,
    SI1133_SENS_LARGE_WHITE = 1u << 4,
    SI1133_SENS_UV          = 1u << 5,
    SI1133_SENS_DEEP_UV     = 1u << 6,
} si1133_sensor_t;

typedef struct {
    uint8_t sample_time_log;    
    uint8_t sw_gain;            
    si1133_sensor_t sensor;     
} si1133_channel_t;

typedef struct {
    i2c_t i2c_dev;              
    uint8_t address;
} si1133_params_t;

typedef struct {
    /* Initialization parameters */
    i2c_t i2c_dev;                  
    uint8_t address;                
    /* Internal members */
    uint8_t cmd_counter;            
    uint8_t num_channels;           
    si1133_channel_t channel[6];    
} si1133_t;

si1133_ret_code_t si1133_init(si1133_t *dev, const si1133_params_t *params);

si1133_ret_code_t si1133_configure_channels(si1133_t *dev,
                                            const si1133_channel_t *channels,
                                            uint32_t num_channels);

si1133_ret_code_t si1133_easy_configure(si1133_t *dev,
                                        si1133_sensor_t sensor_mask,
                                        uint8_t sample_time_log,
                                        uint8_t sw_gain);

si1133_ret_code_t si1133_capture_sensors(si1133_t *dev, int32_t *values,
                                         uint32_t num_channels);
 
#ifdef __cplusplus
}
#endif