94 lines
2.8 KiB
C
94 lines
2.8 KiB
C
/* ST Microelectronics IIS328DQ 3-axis accelerometer driver
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*
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* Copyright (c) 2020 STMicroelectronics
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* Copyright (c) 2024 SILA Embedded Solutions GmbH
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Datasheet:
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* https://www.st.com/resource/en/datasheet/iis328dq.pdf
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*/
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#ifndef ZEPHYR_DRIVERS_SENSOR_IIS328DQ_IIS328DQ_H_
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#define ZEPHYR_DRIVERS_SENSOR_IIS328DQ_IIS328DQ_H_
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#include <zephyr/drivers/gpio.h>
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#include <zephyr/sys/util.h>
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#include <zephyr/drivers/sensor.h>
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#include <stmemsc.h>
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#include "iis328dq_reg.h"
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#if DT_ANY_INST_ON_BUS_STATUS_OKAY(spi)
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#include <zephyr/drivers/spi.h>
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#endif /* DT_ANY_INST_ON_BUS_STATUS_OKAY(spi) */
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#if DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c)
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#include <zephyr/drivers/i2c.h>
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#endif /* DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c) */
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/**
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* struct iis328dq_dev_config - iis328dq hw configuration
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* @bus_name: Pointer to bus master identifier.
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* @pm: Power mode (lis2dh_powermode).
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* @irq_dev_name: Pointer to GPIO PORT identifier.
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* @irq_pin: GPIO pin number connected to sensor int pin.
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* @drdy_int: Sensor drdy int (int1/int2).
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*/
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struct iis328dq_config {
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stmdev_ctx_t ctx;
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union {
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#if DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c)
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const struct i2c_dt_spec i2c;
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#endif
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#if DT_ANY_INST_ON_BUS_STATUS_OKAY(spi)
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const struct spi_dt_spec spi;
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#endif
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} stmemsc_cfg;
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uint8_t range;
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#ifdef CONFIG_IIS328DQ_TRIGGER
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const struct gpio_dt_spec gpio_int1;
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const struct gpio_dt_spec gpio_int2;
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/* interrupt pad to be used for DRDY interrupts, or -1 if not configured */
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int8_t drdy_pad;
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#ifdef CONFIG_IIS328DQ_THRESHOLD
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/* interrupt pad to be used for threshold interrupts, or -1 if not configured */
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int8_t threshold_pad;
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#endif /* CONFIG_IIS328DQ_THRESHOLD */
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#endif /* CONFIG_IIS328DQ_TRIGGER */
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};
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/* sensor data */
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struct iis328dq_data {
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const struct device *dev;
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int16_t acc[3];
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/* sensitivity in mg/LSB */
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uint8_t gain;
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#ifdef CONFIG_IIS328DQ_TRIGGER
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struct gpio_callback int1_cb;
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struct gpio_callback int2_cb;
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sensor_trigger_handler_t drdy_handler;
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const struct sensor_trigger *drdy_trig;
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#ifdef CONFIG_IIS328DQ_THRESHOLD
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sensor_trigger_handler_t threshold_handler;
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const struct sensor_trigger *threshold_trig;
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#endif /* CONFIG_IIS328DQ_THRESHOLD */
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#if defined(CONFIG_IIS328DQ_TRIGGER_OWN_THREAD)
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K_KERNEL_STACK_MEMBER(thread_stack, CONFIG_IIS328DQ_THREAD_STACK_SIZE);
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struct k_thread thread;
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struct k_sem gpio_sem;
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#elif defined(CONFIG_IIS328DQ_TRIGGER_GLOBAL_THREAD)
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struct k_work work;
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#endif /* CONFIG_IIS328DQ_TRIGGER_GLOBAL_THREAD */
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#endif /* CONFIG_IIS328DQ_TRIGGER */
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};
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#ifdef CONFIG_IIS328DQ_TRIGGER
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int iis328dq_init_interrupt(const struct device *dev);
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int iis328dq_trigger_set(const struct device *dev, const struct sensor_trigger *trig,
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sensor_trigger_handler_t handler);
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#endif /* CONFIG_IIS328DQ_TRIGGER */
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#endif /* ZEPHYR_DRIVERS_SENSOR_IIS328DQ_IIS328DQ_H_ */
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