adxl345.h

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/*
 * Copyright (C) 2017 Mesotic SAS
 *
 * 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

 
#ifdef __cplusplus
extern "C" {
#endif
 
#include "periph/i2c.h"
#include "periph/gpio.h"

enum {
    ADXL345_ADDR_1D = 0x1D, 
    ADXL345_ADDR_53 = 0x53, 
};

enum {
    ADXL345_MEASURE_MODE,       
    ADXL345_STANDBY_MODE,       
    ADXL345_SLEEP_MODE,         
    ADXL345_AUTOSLEEP_MODE,     
};

enum {
    ADXL345_RANGE_2G    = 0,     
    ADXL345_RANGE_4G    = 1,     
    ADXL345_RANGE_8G    = 2,     
    ADXL345_RANGE_16G   = 3      
};

enum {
    ADXL345_RATE_0HZ1   = 0,   
    ADXL345_RATE_0HZ2   = 1,   
    ADXL345_RATE_0HZ39  = 2,   
    ADXL345_RATE_0HZ78  = 3,   
    ADXL345_RATE_1HZ56  = 4,   
    ADXL345_RATE_3HZ13  = 5,   
    ADXL345_RATE_6HZ25  = 6,   
    ADXL345_RATE_12HZ50 = 7,   
    ADXL345_RATE_25HZ   = 8,   
    ADXL345_RATE_50HZ   = 9,   
    ADXL345_RATE_100HZ  = 10,  
    ADXL345_RATE_200HZ  = 11,  
    ADXL345_RATE_400HZ  = 12,  
    ADXL345_RATE_800HZ  = 13,  
    ADXL345_RATE_1600HZ = 14,  
    ADXL345_RATE_3200HZ = 15   
};

enum {
    ADXL345_BYPASS  = 0,          
    ADXL345_FIFO    = 1,          
    ADXL345_STREAM  = 2,          
    ADXL345_TRIGGER = 3           
};

enum {
    ADXL345_INT1,  
    ADXL345_INT2   
};

enum {
    ADXL345_OK          =  0,       
    ADXL345_DATA_READY  =  1,       
    ADXL345_NOI2C       = -1,       
    ADXL345_NODEV       = -2,       
    ADXL345_NODATA      = -3        
};

typedef struct {
    int16_t x;             
    int16_t y;             
    int16_t z;             
} adxl345_data_t;

typedef struct {
    uint8_t source;       
    uint8_t map;          
    uint8_t enable;       
    uint8_t thres_tap;    
    uint8_t thres_dur;    
    uint8_t thres_latent; 
    uint8_t thres_window; 
    uint8_t thres_act;    
    uint8_t thres_inact;  
    uint8_t time_inact;   
    uint8_t thres_ff;     
    uint8_t time_ff;      
    uint8_t act_inact;    
    uint8_t tap_axes;     
} adxl345_interrupt_t;

typedef struct {
    i2c_t i2c;                
    uint8_t addr;             
    gpio_t int1;              
    gpio_t int2;              
    uint8_t offset[3];        
    uint8_t range;            
    uint8_t rate;             
    uint8_t full_res;         
} adxl345_params_t;

typedef struct {
    adxl345_params_t params;        
    adxl345_interrupt_t interrupt;  
    int16_t scale_factor;           
} adxl345_t;

int adxl345_init(adxl345_t *dev, const adxl345_params_t* params);
void adxl345_read(const adxl345_t *dev, adxl345_data_t *data);

void adxl345_set_interrupt(const adxl345_t *dev);

void adxl345_set_measure(const adxl345_t *dev);

void adxl345_set_standby(const adxl345_t *dev);

void adxl345_set_sleep(const adxl345_t *dev);

void adxl345_set_autosleep(const adxl345_t *dev);

void adxl345_set_bandwidth_rate(const adxl345_t *dev, uint8_t bw_rate);

void adxl345_set_fifo_mode(const adxl345_t *dev, uint8_t mode,
                           uint8_t output, uint8_t value);
 
#ifdef __cplusplus
}
#endif