119 lines
3.0 KiB
C
119 lines
3.0 KiB
C
/* ST Microelectronics IIS2ICLX 2-axis accelerometer sensor driver
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*
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* Copyright (c) 2020 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/iis2iclx.pdf
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*/
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#ifndef ZEPHYR_DRIVERS_SENSOR_IIS2ICLX_IIS2ICLX_H_
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#define ZEPHYR_DRIVERS_SENSOR_IIS2ICLX_IIS2ICLX_H_
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#include <drivers/sensor.h>
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#include <zephyr/types.h>
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#include <drivers/gpio.h>
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#include <sys/util.h>
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#include <stmemsc.h>
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#include "iis2iclx_reg.h"
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#if DT_ANY_INST_ON_BUS_STATUS_OKAY(spi)
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#include <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 <drivers/i2c.h>
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#endif /* DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c) */
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#define IIS2ICLX_EN_BIT 0x01
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#define IIS2ICLX_DIS_BIT 0x00
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/* Accel sensor sensitivity grain is 15 ug/LSB */
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#define GAIN_UNIT_XL (15LL)
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#define SENSOR_PI_DOUBLE (SENSOR_PI / 1000000.0)
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#define SENSOR_DEG2RAD_DOUBLE (SENSOR_PI_DOUBLE / 180)
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#define SENSOR_G_DOUBLE (SENSOR_G / 1000000.0)
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struct iis2iclx_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 odr;
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uint8_t range;
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#ifdef CONFIG_IIS2ICLX_TRIGGER
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bool trig_enabled;
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uint8_t int_pin;
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const struct gpio_dt_spec gpio_drdy;
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#endif /* CONFIG_IIS2ICLX_TRIGGER */
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};
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#define IIS2ICLX_SHUB_MAX_NUM_SLVS 2
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struct iis2iclx_data {
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const struct device *dev;
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int16_t acc[2];
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uint32_t acc_gain;
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#if defined(CONFIG_IIS2ICLX_ENABLE_TEMP)
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int temp_sample;
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#endif
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#if defined(CONFIG_IIS2ICLX_SENSORHUB)
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uint8_t ext_data[2][6];
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uint16_t magn_gain;
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struct hts221_data {
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int16_t x0;
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int16_t x1;
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int16_t y0;
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int16_t y1;
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} hts221;
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bool shub_inited;
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uint8_t num_ext_dev;
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uint8_t shub_ext[IIS2ICLX_SHUB_MAX_NUM_SLVS];
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#endif /* CONFIG_IIS2ICLX_SENSORHUB */
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uint16_t accel_freq;
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uint8_t accel_fs;
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#ifdef CONFIG_IIS2ICLX_TRIGGER
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struct gpio_callback gpio_cb;
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sensor_trigger_handler_t handler_drdy_acc;
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sensor_trigger_handler_t handler_drdy_temp;
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#if defined(CONFIG_IIS2ICLX_TRIGGER_OWN_THREAD)
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K_KERNEL_STACK_MEMBER(thread_stack, CONFIG_IIS2ICLX_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_IIS2ICLX_TRIGGER_GLOBAL_THREAD)
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struct k_work work;
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#endif
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#endif /* CONFIG_IIS2ICLX_TRIGGER */
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};
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#if defined(CONFIG_IIS2ICLX_SENSORHUB)
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int iis2iclx_shub_init(const struct device *dev);
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int iis2iclx_shub_fetch_external_devs(const struct device *dev);
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int iis2iclx_shub_get_idx(const struct device *dev, enum sensor_channel type);
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int iis2iclx_shub_config(const struct device *dev, enum sensor_channel chan,
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enum sensor_attribute attr,
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const struct sensor_value *val);
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#endif /* CONFIG_IIS2ICLX_SENSORHUB */
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#ifdef CONFIG_IIS2ICLX_TRIGGER
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int iis2iclx_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 iis2iclx_init_interrupt(const struct device *dev);
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#endif
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#endif /* ZEPHYR_DRIVERS_SENSOR_IIS2ICLX_IIS2ICLX_H_ */
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