148 lines
4.0 KiB
C
148 lines
4.0 KiB
C
/* ST Microelectronics LPS2XDF pressure and temperature sensor
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*
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* Copyright (c) 2023 STMicroelectronics
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* Copyright (c) 2023 PHYTEC Messtechnik GmbH
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef ZEPHYR_DRIVERS_SENSOR_LPS2XDF_LPS2XDF_H_
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#define ZEPHYR_DRIVERS_SENSOR_LPS2XDF_LPS2XDF_H_
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#include <stdint.h>
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#include <stmemsc.h>
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#if DT_HAS_COMPAT_STATUS_OKAY(st_ilps22qs)
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#include "ilps22qs_reg.h"
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#endif
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#if DT_HAS_COMPAT_STATUS_OKAY(st_lps28dfw)
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#include "lps28dfw_reg.h"
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#endif
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#if DT_HAS_COMPAT_STATUS_OKAY(st_lps22df)
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#include "lps22df_reg.h"
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#endif
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#include <zephyr/drivers/spi.h>
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#include <zephyr/drivers/i2c.h>
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#include <zephyr/drivers/i3c.h>
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#include <zephyr/drivers/sensor.h>
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#define LPS2XDF_SWRESET_WAIT_TIME_US 50
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#if (DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_lps22df, i3c) || \
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DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_ilps22qs, i3c) || \
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DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_lps28dfw, i3c))
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#define ON_I3C_BUS(cfg) (cfg->i3c.bus != NULL)
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#else
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#define ON_I3C_BUS(cfg) (false)
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#endif
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typedef int32_t (*api_lps2xdf_mode_set_odr_raw)(const struct device *dev, uint8_t odr);
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typedef int32_t (*api_lps2xdf_sample_fetch)(const struct device *dev, enum sensor_channel chan);
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#ifdef CONFIG_LPS2XDF_TRIGGER
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typedef int (*api_lps2xdf_config_interrupt)(const struct device *dev);
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typedef void (*api_lps2xdf_handle_interrupt)(const struct device *dev);
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typedef int (*api_lps2xdf_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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#endif
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struct lps2xdf_chip_api {
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api_lps2xdf_mode_set_odr_raw mode_set_odr_raw;
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api_lps2xdf_sample_fetch sample_fetch;
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#ifdef CONFIG_LPS2XDF_TRIGGER
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api_lps2xdf_config_interrupt config_interrupt;
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api_lps2xdf_handle_interrupt handle_interrupt;
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api_lps2xdf_trigger_set trigger_set;
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#endif
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};
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enum sensor_variant {
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DEVICE_VARIANT_LPS22DF = 0,
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DEVICE_VARIANT_LPS28DFW = 1,
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DEVICE_VARIANT_ILPS22QS = 2,
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};
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struct lps2xdf_config {
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stmdev_ctx_t ctx;
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union {
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#if (DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_lps22df, i2c) || \
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DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_ilps22qs, i2c) || \
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DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_lps28dfw, i2c))
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const struct i2c_dt_spec i2c;
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#endif
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#if (DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_lps22df, spi) ||\
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DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_ilps22qs, spi))
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const struct spi_dt_spec spi;
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#endif
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#if (DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_lps22df, i3c) || \
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DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_ilps22qs, i3c) || \
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DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_lps28dfw, i3c))
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struct i3c_device_desc **i3c;
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#endif
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} stmemsc_cfg;
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uint8_t odr;
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uint8_t lpf;
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uint8_t avg;
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uint8_t drdy_pulsed;
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bool fs;
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#ifdef CONFIG_LPS2XDF_TRIGGER
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struct gpio_dt_spec gpio_int;
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bool trig_enabled;
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#endif
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#if (DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_lps22df, i3c) || \
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DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_ilps22qs, i3c) || \
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DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_lps28dfw, i3c))
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struct {
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const struct device *bus;
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const struct i3c_device_id dev_id;
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} i3c;
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#endif
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const struct lps2xdf_chip_api *chip_api;
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};
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struct lps2xdf_data {
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int32_t sample_press;
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int16_t sample_temp;
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#ifdef CONFIG_LPS2XDF_TRIGGER
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struct gpio_callback gpio_cb;
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const struct sensor_trigger *data_ready_trigger;
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sensor_trigger_handler_t handler_drdy;
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const struct device *dev;
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#if defined(CONFIG_LPS2XDF_TRIGGER_OWN_THREAD)
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K_KERNEL_STACK_MEMBER(thread_stack, CONFIG_LPS2XDF_THREAD_STACK_SIZE);
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struct k_thread thread;
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struct k_sem intr_sem;
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#elif defined(CONFIG_LPS2XDF_TRIGGER_GLOBAL_THREAD)
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struct k_work work;
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#endif
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#endif /* CONFIG_LPS2XDF_TRIGGER */
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#if (DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_lps22df, i3c) || \
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DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_ilps22qs, i3c) || \
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DT_HAS_COMPAT_ON_BUS_STATUS_OKAY(st_lps28dfw, i3c))
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struct i3c_device_desc *i3c_dev;
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#endif
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};
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#ifdef CONFIG_LPS2XDF_TRIGGER
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int lps2xdf_config_int(const struct device *dev);
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int lps2xdf_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 lps2xdf_init_interrupt(const struct device *dev, enum sensor_variant variant);
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#endif
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#endif /* ZEPHYR_DRIVERS_SENSOR_LPS2XDF_H_ */
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