lsm303dlhc.h

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/*
 * Copyright (C) 2014 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.
 */
 
#ifndef LSM303DLHC_H
#define LSM303DLHC_H
 
#include <stdint.h>
#include "periph/i2c.h"
#include "periph/gpio.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
#define LSM303DLHC_ACC_DEFAULT_ADDRESS        (0x19)
#define LSM303DLHC_MAG_DEFAULT_ADDRESS        (0x1e)
 
typedef enum {
    LSM303DLHC_ACC_SAMPLE_RATE_1HZ              = 0x10, 
    LSM303DLHC_ACC_SAMPLE_RATE_10HZ             = 0x20, 
    LSM303DLHC_ACC_SAMPLE_RATE_25HZ             = 0x30, 
    LSM303DLHC_ACC_SAMPLE_RATE_50HZ             = 0x40, 
    LSM303DLHC_ACC_SAMPLE_RATE_100HZ            = 0x50, 
    LSM303DLHC_ACC_SAMPLE_RATE_200HZ            = 0x60, 
    LSM303DLHC_ACC_SAMPLE_RATE_400HZ            = 0x70, 
    LSM303DLHC_ACC_SAMPLE_RATE_1620HZ           = 0x80, 
    LSM303DLHC_ACC_SAMPLE_RATE_N1344HZ_L5376HZ  = 0x90  
} lsm303dlhc_acc_sample_rate_t;
 
typedef enum {
    LSM303DLHC_ACC_SCALE_2G     = 0x00, 
    LSM303DLHC_ACC_SCALE_4G     = 0x10, 
    LSM303DLHC_ACC_SCALE_8G     = 0x20, 
    LSM303DLHC_ACC_SCALE_16G    = 0x30, 
} lsm303dlhc_acc_scale_t;
 
typedef enum {
    LSM303DLHC_MAG_SAMPLE_RATE_0_75HZ   = 0x00, 
    LSM303DLHC_MAG_SAMPLE_RATE_1_5HZ    = 0x04, 
    LSM303DLHC_MAG_SAMPLE_RATE_3HZ      = 0x08, 
    LSM303DLHC_MAG_SAMPLE_RATE_7_5HZ    = 0x0c, 
    LSM303DLHC_MAG_SAMPLE_RATE_15HZ     = 0x10, 
    LSM303DLHC_MAG_SAMPLE_RATE_30HZ     = 0x14, 
    LSM303DLHC_MAG_SAMPLE_RATE_75HZ     = 0x18, 
    LSM303DLHC_MAG_SAMPLE_RATE_220HZ    = 0x1c, 
} lsm303dlhc_mag_sample_rate_t;
 
 typedef enum {
    LSM303DLHC_MAG_GAIN_1100_980_GAUSS = 0x20, 
    LSM303DLHC_MAG_GAIN_855_760_GAUSS  = 0x40, 
    LSM303DLHC_MAG_GAIN_670_600_GAUSS  = 0x60, 
    LSM303DLHC_MAG_GAIN_450_400_GAUSS  = 0x80, 
    LSM303DLHC_MAG_GAIN_400_355_GAUSS  = 0xa0, 
    LSM303DLHC_MAG_GAIN_330_295_GAUSS  = 0xc0, 
    LSM303DLHC_MAG_GAIN_230_205_GAUSS  = 0xe0, 
 } lsm303dlhc_mag_gain_t;
 
typedef struct {
    int16_t x_axis;     
    int16_t y_axis;     
    int16_t z_axis;     
} lsm303dlhc_3d_data_t;
 
typedef struct {
    i2c_t i2c;                              
    uint8_t acc_addr;                       
    gpio_t acc_pin;                         
    lsm303dlhc_acc_sample_rate_t acc_rate;  
    lsm303dlhc_acc_scale_t acc_scale;       
    uint8_t mag_addr;                       
    gpio_t mag_pin;                         
    lsm303dlhc_mag_sample_rate_t mag_rate;  
    lsm303dlhc_mag_gain_t mag_gain;         
} lsm303dlhc_params_t;
 
typedef struct {
    lsm303dlhc_params_t params;             
} lsm303dlhc_t;
 
int lsm303dlhc_init(lsm303dlhc_t *dev, const lsm303dlhc_params_t *params);
 
int lsm303dlhc_read_acc(const lsm303dlhc_t *dev, lsm303dlhc_3d_data_t *data);
 
int lsm303dlhc_read_mag(const lsm303dlhc_t *dev, lsm303dlhc_3d_data_t *data);
 
int lsm303dlhc_read_temp(const lsm303dlhc_t *dev, int16_t *value);
 
int lsm303dlhc_enable(const lsm303dlhc_t *dev);
 
int lsm303dlhc_disable(const lsm303dlhc_t *dev);
 
#ifdef __cplusplus
}
#endif
 
#endif /* LSM303DLHC_H */