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driver/sensor: add IIS3DHHC accelerometer sensor

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Add support to STM IIS3DHHC the ultra-low noise, high-stability
three-axis linear accelerometer.

Signed-off-by: Armando Visconti <armando.visconti@st.com>
This commit is contained in:
Armando Visconti 2019-09-05 15:19:40 +02:00 • committed by Maureen Helm
commit 871d132577
12 changed files with 754 additions and 0 deletions
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80
drivers/sensor/iis3dhhc/iis3dhhc.h Normal file
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/* ST Microelectronics IIS3DHHC accelerometer sensor
*
* Copyright (c) 2019 STMicroelectronics
*
* SPDX-License-Identifier: Apache-2.0
*
* Datasheet:
* https://www.st.com/resource/en/datasheet/iis3dhhc.pdf
*/
#ifndef ZEPHYR_DRIVERS_SENSOR_IIS3DHHC_IIS3DHHC_H_
#define ZEPHYR_DRIVERS_SENSOR_IIS3DHHC_IIS3DHHC_H_
#include <stdint.h>
#include <drivers/spi.h>
#include <drivers/gpio.h>
#include <drivers/sensor.h>
#include <zephyr/types.h>
#include <sys/util.h>
#include "iis3dhhc_reg.h"
struct iis3dhhc_config {
char *master_dev_name;
int (*bus_init)(struct device *dev);
#ifdef CONFIG_IIS3DHHC_TRIGGER
const char *int_port;
u8_t int_pin;
#endif
#ifdef DT_ST_IIS3DHHC_BUS_SPI
struct spi_config spi_conf;
#if defined(DT_INST_0_ST_IIS3DHHC_CS_GPIO_CONTROLLER)
const char *gpio_cs_port;
u8_t cs_gpio;
#endif
#endif
};
struct iis3dhhc_data {
struct device *bus;
s16_t acc[3];
iis3dhhc_ctx_t *ctx;
#ifdef DT_ST_IIS3DHHC_BUS_SPI
iis3dhhc_ctx_t ctx_spi;
#endif
#ifdef CONFIG_IIS3DHHC_TRIGGER
struct device *gpio;
u32_t pin;
struct gpio_callback gpio_cb;
sensor_trigger_handler_t handler_drdy;
#if defined(CONFIG_IIS3DHHC_TRIGGER_OWN_THREAD)
K_THREAD_STACK_MEMBER(thread_stack, CONFIG_IIS3DHHC_THREAD_STACK_SIZE);
struct k_thread thread;
struct k_sem gpio_sem;
#elif defined(CONFIG_IIS3DHHC_TRIGGER_GLOBAL_THREAD)
struct k_work work;
struct device *dev;
#endif
#endif /* CONFIG_IIS3DHHC_TRIGGER */
#if defined(DT_INST_0_ST_IIS3DHHC_CS_GPIO_CONTROLLER)
struct spi_cs_control cs_ctrl;
#endif
};
int iis3dhhc_spi_init(struct device *dev);
#ifdef CONFIG_IIS3DHHC_TRIGGER
int iis3dhhc_trigger_set(struct device *dev,
const struct sensor_trigger *trig,
sensor_trigger_handler_t handler);
int iis3dhhc_init_interrupt(struct device *dev);
#endif
#endif /* ZEPHYR_DRIVERS_SENSOR_IIS3DHHC_IIS3DHHC_H_ */