1fda8d26eSThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-only */ 2e4a70e3eSLorenzo Bianconi /* 3e4a70e3eSLorenzo Bianconi * STMicroelectronics hts221 sensor driver 4e4a70e3eSLorenzo Bianconi * 5e4a70e3eSLorenzo Bianconi * Copyright 2016 STMicroelectronics Inc. 6e4a70e3eSLorenzo Bianconi * 7e4a70e3eSLorenzo Bianconi * Lorenzo Bianconi <lorenzo.bianconi@st.com> 8e4a70e3eSLorenzo Bianconi */ 9e4a70e3eSLorenzo Bianconi 10e4a70e3eSLorenzo Bianconi #ifndef HTS221_H 11e4a70e3eSLorenzo Bianconi #define HTS221_H 12e4a70e3eSLorenzo Bianconi 13e4a70e3eSLorenzo Bianconi #define HTS221_DEV_NAME "hts221" 14e4a70e3eSLorenzo Bianconi 15e4a70e3eSLorenzo Bianconi #include <linux/iio/iio.h> 16e4a70e3eSLorenzo Bianconi 17e4a70e3eSLorenzo Bianconi #define HTS221_DATA_SIZE 2 18e4a70e3eSLorenzo Bianconi 19e4a70e3eSLorenzo Bianconi enum hts221_sensor_type { 20e4a70e3eSLorenzo Bianconi HTS221_SENSOR_H, 21e4a70e3eSLorenzo Bianconi HTS221_SENSOR_T, 22e4a70e3eSLorenzo Bianconi HTS221_SENSOR_MAX, 23e4a70e3eSLorenzo Bianconi }; 24e4a70e3eSLorenzo Bianconi 25e4a70e3eSLorenzo Bianconi struct hts221_sensor { 26e4a70e3eSLorenzo Bianconi u8 cur_avg_idx; 27e4a70e3eSLorenzo Bianconi int slope, b_gen; 28e4a70e3eSLorenzo Bianconi }; 29e4a70e3eSLorenzo Bianconi 30e4a70e3eSLorenzo Bianconi struct hts221_hw { 31e4a70e3eSLorenzo Bianconi const char *name; 32e4a70e3eSLorenzo Bianconi struct device *dev; 3362177922SLorenzo Bianconi struct regmap *regmap; 34e4a70e3eSLorenzo Bianconi 35e4a70e3eSLorenzo Bianconi struct iio_trigger *trig; 36e4a70e3eSLorenzo Bianconi int irq; 37e4a70e3eSLorenzo Bianconi 38e4a70e3eSLorenzo Bianconi struct hts221_sensor sensors[HTS221_SENSOR_MAX]; 39e4a70e3eSLorenzo Bianconi 40b7079eeaSLorenzo Bianconi bool enabled; 41e4a70e3eSLorenzo Bianconi u8 odr; 42e4a70e3eSLorenzo Bianconi }; 43e4a70e3eSLorenzo Bianconi 44b7079eeaSLorenzo Bianconi extern const struct dev_pm_ops hts221_pm_ops; 45b7079eeaSLorenzo Bianconi 46e1ca1141SLorenzo Bianconi int hts221_probe(struct device *dev, int irq, const char *name, 4762177922SLorenzo Bianconi struct regmap *regmap); 48e3e25446SLorenzo Bianconi int hts221_set_enable(struct hts221_hw *hw, bool enable); 49*7d17577dSAlexandru Ardelean int hts221_allocate_buffers(struct iio_dev *iio_dev); 50*7d17577dSAlexandru Ardelean int hts221_allocate_trigger(struct iio_dev *iio_dev); 51e4a70e3eSLorenzo Bianconi 52e4a70e3eSLorenzo Bianconi #endif /* HTS221_H */ 53