73 lines
1.8 KiB
C
73 lines
1.8 KiB
C
/* ST Microelectronics LIS2DS12 3-axis accelerometer driver
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*
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* Copyright (c) 2019 STMicroelectronics
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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/lis2ds12.pdf
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*/
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#ifndef ZEPHYR_DRIVERS_SENSOR_LIS2DS12_LIS2DS12_H_
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#define ZEPHYR_DRIVERS_SENSOR_LIS2DS12_LIS2DS12_H_
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#include <zephyr/types.h>
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#include <drivers/sensor.h>
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#include <drivers/gpio.h>
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#include "lis2ds12_reg.h"
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/* Return ODR reg value based on data rate set */
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#define LIS2DS12_HR_ODR_TO_REG(_odr) \
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((_odr <= 12) ? LIS2DS12_XL_ODR_12Hz5_HR : \
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((31 - __builtin_clz(_odr / 25))) + 2)
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struct lis2ds12_config {
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char *comm_master_dev_name;
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int (*bus_init)(const struct device *dev);
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#ifdef CONFIG_LIS2DS12_TRIGGER
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const char *irq_port;
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gpio_pin_t irq_pin;
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gpio_dt_flags_t irq_flags;
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#endif
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};
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struct lis2ds12_data {
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stmdev_ctx_t *ctx;
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const struct device *comm_master;
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int sample_x;
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int sample_y;
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int sample_z;
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float gain;
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#ifdef CONFIG_LIS2DS12_TRIGGER
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const struct device *gpio;
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struct gpio_callback gpio_cb;
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struct sensor_trigger data_ready_trigger;
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sensor_trigger_handler_t data_ready_handler;
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const struct device *dev;
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#if defined(CONFIG_LIS2DS12_TRIGGER_OWN_THREAD)
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K_KERNEL_STACK_MEMBER(thread_stack, CONFIG_LIS2DS12_THREAD_STACK_SIZE);
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struct k_thread thread;
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struct k_sem trig_sem;
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#elif defined(CONFIG_LIS2DS12_TRIGGER_GLOBAL_THREAD)
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struct k_work work;
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#endif
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#endif /* CONFIG_LIS2DS12_TRIGGER */
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};
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int lis2ds12_spi_init(const struct device *dev);
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int lis2ds12_i2c_init(const struct device *dev);
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#ifdef CONFIG_LIS2DS12_TRIGGER
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int lis2ds12_trigger_set(const struct device *dev,
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const struct sensor_trigger *trig,
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sensor_trigger_handler_t handler);
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int lis2ds12_trigger_init(const struct device *dev);
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#endif
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#endif /* ZEPHYR_DRIVERS_SENSOR_LIS2DS12_LIS2DS12_H_ */
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