lis2ds12.h

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/*
 * Author: Jon Trulson <jtrulson@ics.com>
 * Copyright (c) 2017 Intel Corporation.
 *
 * The MIT License
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
#pragma once

#include <unistd.h>
#include <string.h>

#include <mraa/i2c.h>
#include <mraa/spi.h>
#include <mraa/gpio.h>

#include "upm.h"

#include "lis2ds12_defs.h"

#ifdef __cplusplus
extern "C" {
#endif

    typedef struct _lis2ds12_context {
        mraa_i2c_context i2c;
        mraa_spi_context spi;

        mraa_gpio_context gpioCS; // SPI CS pin
        mraa_gpio_context gpioINT1;  // intr 1
        mraa_gpio_context gpioINT2;  // intr 2

        // temperature
        float temperature;

        // uncompensated acc data
        float accX;
        float accY;
        float accZ;

        // acc scaling
        float accScale;
        float accFactor;
    } *lis2ds12_context;

    lis2ds12_context lis2ds12_init(int bus, int addr, int cs);

    void lis2ds12_close(lis2ds12_context dev);

    upm_result_t lis2ds12_update(const lis2ds12_context dev);

    uint8_t lis2ds12_get_chip_id(const lis2ds12_context dev);

    upm_result_t lis2ds12_devinit(const lis2ds12_context dev,
                                  LIS2DS12_ODR_T odr,
                                  LIS2DS12_FS_T fs);

    upm_result_t lis2ds12_set_odr(const lis2ds12_context dev,
                                  LIS2DS12_ODR_T odr);

    upm_result_t lis2ds12_set_full_scale(const lis2ds12_context dev,
                                         LIS2DS12_FS_T fs);

    void lis2ds12_get_accelerometer(const lis2ds12_context dev,
                                    float *x, float *y, float *z);

    float lis2ds12_get_temperature(const lis2ds12_context dev);

    upm_result_t lis2ds12_reset(const lis2ds12_context dev);

    upm_result_t lis2ds12_enable_hp_filtering(const lis2ds12_context dev,
                                              bool filter);

    upm_result_t lis2ds12_enable_interrupt_latching(const lis2ds12_context dev,
                                                    bool latch);

    upm_result_t lis2ds12_set_interrupt_active_high(const lis2ds12_context dev,
                                                    bool high);

    upm_result_t lis2ds12_set_interrupt_push_pull(const lis2ds12_context dev,
                                                  bool pp);

    upm_result_t lis2ds12_set_int1_config(const lis2ds12_context dev,
                                          uint8_t cfg);

    upm_result_t lis2ds12_set_int2_config(const lis2ds12_context dev,
                                          uint8_t cfg);

    uint8_t lis2ds12_get_status(const lis2ds12_context dev);

    upm_result_t lis2ds12_install_isr(const lis2ds12_context dev,
                                      LIS2DS12_INTERRUPT_PINS_T intr, int gpio,
                                      mraa_gpio_edge_t level,
                                      void (*isr)(void *), void *arg);

    void lis2ds12_uninstall_isr(const lis2ds12_context dev,
                                LIS2DS12_INTERRUPT_PINS_T intr);

    uint8_t lis2ds12_read_reg(const lis2ds12_context dev, uint8_t reg);

    int lis2ds12_read_regs(const lis2ds12_context dev, uint8_t reg,
                           uint8_t *buffer, int len);

    upm_result_t lis2ds12_write_reg(const lis2ds12_context dev,
                                    uint8_t reg, uint8_t val);


#ifdef __cplusplus
}
#endif