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/* ST Microelectronics LIS2DS12 3-axis accelerometer driver
*
* Copyright (c) 2019 STMicroelectronics
*
* SPDX-License-Identifier: Apache-2.0
*
* Datasheet:
* https://www.st.com/resource/en/datasheet/lis2ds12.pdf
*/
#ifndef ZEPHYR_DRIVERS_SENSOR_LIS2DS12_LIS2DS12_H_
#define ZEPHYR_DRIVERS_SENSOR_LIS2DS12_LIS2DS12_H_
#include <zephyr/types.h>
#include <drivers/sensor.h>
#include <drivers/gpio.h>
#include <stmemsc.h>
#include "lis2ds12_reg.h"
#if DT_ANY_INST_ON_BUS_STATUS_OKAY(spi)
#include <drivers/spi.h>
#endif /* DT_ANY_INST_ON_BUS_STATUS_OKAY(spi) */
#if DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c)
#include <drivers/i2c.h>
#endif /* DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c) */
/* Return ODR reg value based on data rate set */
#define LIS2DS12_ODR_TO_REG(_odr) \
((_odr <= 1) ? 1 : \
((31 - __builtin_clz(_odr / 25))) + 3)
struct lis2ds12_config {
stmdev_ctx_t ctx;
union {
#if DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c)
const struct i2c_dt_spec i2c;
#endif
#if DT_ANY_INST_ON_BUS_STATUS_OKAY(spi)
const struct spi_dt_spec spi;
#endif
} stmemsc_cfg;
uint8_t range;
uint8_t pm;
uint8_t odr;
#ifdef CONFIG_LIS2DS12_TRIGGER
struct gpio_dt_spec gpio_int;
#endif
};
struct lis2ds12_data {
int sample_x;
int sample_y;
int sample_z;
float gain;
#ifdef CONFIG_LIS2DS12_TRIGGER
struct gpio_callback gpio_cb;
struct sensor_trigger data_ready_trigger;
sensor_trigger_handler_t data_ready_handler;
const struct device *dev;
#if defined(CONFIG_LIS2DS12_TRIGGER_OWN_THREAD)
K_KERNEL_STACK_MEMBER(thread_stack, CONFIG_LIS2DS12_THREAD_STACK_SIZE);
struct k_thread thread;
struct k_sem trig_sem;
#elif defined(CONFIG_LIS2DS12_TRIGGER_GLOBAL_THREAD)
struct k_work work;
#endif
#endif /* CONFIG_LIS2DS12_TRIGGER */
};
#ifdef CONFIG_LIS2DS12_TRIGGER
int lis2ds12_trigger_set(const struct device *dev,
const struct sensor_trigger *trig,
sensor_trigger_handler_t handler);
int lis2ds12_trigger_init(const struct device *dev);
#endif
#endif /* ZEPHYR_DRIVERS_SENSOR_LIS2DS12_LIS2DS12_H_ */