83 lines
1.8 KiB
C
83 lines
1.8 KiB
C
/*
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* Copyright (c) 2016 Intel Corporation
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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_HTS221_HTS221_H_
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#define ZEPHYR_DRIVERS_SENSOR_HTS221_HTS221_H_
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#include <device.h>
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#include <sys/util.h>
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#include <zephyr/types.h>
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#include <drivers/gpio.h>
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#define HTS221_AUTOINCREMENT_ADDR BIT(7)
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#define HTS221_REG_WHO_AM_I 0x0F
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#define HTS221_CHIP_ID 0xBC
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#define HTS221_REG_CTRL1 0x20
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#define HTS221_PD_BIT BIT(7)
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#define HTS221_BDU_BIT BIT(2)
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#define HTS221_ODR_SHIFT 0
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#define HTS221_REG_CTRL3 0x22
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#define HTS221_DRDY_EN BIT(2)
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#define HTS221_REG_DATA_START 0x28
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#define HTS221_REG_CONVERSION_START 0x30
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struct hts221_data {
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struct device *i2c;
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int16_t rh_sample;
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int16_t t_sample;
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uint8_t h0_rh_x2;
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uint8_t h1_rh_x2;
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uint16_t t0_degc_x8;
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uint16_t t1_degc_x8;
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int16_t h0_t0_out;
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int16_t h1_t0_out;
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int16_t t0_out;
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int16_t t1_out;
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#ifdef CONFIG_HTS221_TRIGGER
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struct device *dev;
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struct device *drdy_dev;
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struct gpio_callback drdy_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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#if defined(CONFIG_HTS221_TRIGGER_OWN_THREAD)
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K_THREAD_STACK_MEMBER(thread_stack, CONFIG_HTS221_THREAD_STACK_SIZE);
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struct k_thread thread;
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struct k_sem drdy_sem;
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#elif defined(CONFIG_HTS221_TRIGGER_GLOBAL_THREAD)
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struct k_work work;
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#endif
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#endif /* CONFIG_HTS221_TRIGGER */
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};
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struct hts221_config {
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const char *i2c_bus;
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uint16_t i2c_addr;
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#ifdef CONFIG_HTS221_TRIGGER
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gpio_pin_t drdy_pin;
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gpio_flags_t drdy_flags;
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const char *drdy_controller;
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#endif /* CONFIG_HTS221_TRIGGER */
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};
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#ifdef CONFIG_HTS221_TRIGGER
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int hts221_trigger_set(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 hts221_init_interrupt(struct device *dev);
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#endif
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#endif /* __SENSOR_HTS221__ */
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