forked from Minki/linux
e5aab7b0d8
Initial support for ST LPS22HH pressure sensor. Datasheet: http://www2.st.com/resource/en/datasheet/lps22hh.pdf Features: * pressure, temperature data and timestamping channels * sampling frequency selection [1..200] Hz * interrupt based trigger * over I2C or SPI interface Signed-off-by: mario tesi <mario.tesi@st.com> Acked-by: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
65 lines
1.5 KiB
C
65 lines
1.5 KiB
C
/*
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* STMicroelectronics pressures driver
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*
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* Copyright 2013 STMicroelectronics Inc.
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*
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* Denis Ciocca <denis.ciocca@st.com>
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* v. 1.0.0
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* Licensed under the GPL-2.
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*/
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#ifndef ST_PRESS_H
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#define ST_PRESS_H
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#include <linux/types.h>
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#include <linux/iio/common/st_sensors.h>
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enum st_press_type {
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LPS001WP,
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LPS25H,
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LPS331AP,
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LPS22HB,
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LPS33HW,
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LPS35HW,
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LPS22HH,
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ST_PRESS_MAX,
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};
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#define LPS001WP_PRESS_DEV_NAME "lps001wp"
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#define LPS25H_PRESS_DEV_NAME "lps25h"
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#define LPS331AP_PRESS_DEV_NAME "lps331ap"
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#define LPS22HB_PRESS_DEV_NAME "lps22hb"
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#define LPS33HW_PRESS_DEV_NAME "lps33hw"
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#define LPS35HW_PRESS_DEV_NAME "lps35hw"
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#define LPS22HH_PRESS_DEV_NAME "lps22hh"
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/**
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* struct st_sensors_platform_data - default press platform data
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* @drdy_int_pin: default press DRDY is available on INT1 pin.
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*/
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static const struct st_sensors_platform_data default_press_pdata = {
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.drdy_int_pin = 1,
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};
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int st_press_common_probe(struct iio_dev *indio_dev);
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void st_press_common_remove(struct iio_dev *indio_dev);
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#ifdef CONFIG_IIO_BUFFER
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int st_press_allocate_ring(struct iio_dev *indio_dev);
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void st_press_deallocate_ring(struct iio_dev *indio_dev);
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int st_press_trig_set_state(struct iio_trigger *trig, bool state);
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#define ST_PRESS_TRIGGER_SET_STATE (&st_press_trig_set_state)
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#else /* CONFIG_IIO_BUFFER */
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static inline int st_press_allocate_ring(struct iio_dev *indio_dev)
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{
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return 0;
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}
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static inline void st_press_deallocate_ring(struct iio_dev *indio_dev)
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{
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}
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#define ST_PRESS_TRIGGER_SET_STATE NULL
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#endif /* CONFIG_IIO_BUFFER */
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#endif /* ST_PRESS_H */
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