9690d81a02
MS5607 is temperature and pressure sensor which hardware is similar to MS5611. Both sensors share command protocol and support both I2C and SPI serial protocols. They only differ in compensation algorithms. Signed-off-by: Tomasz Duszynski <tduszyns@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
57 lines
1.3 KiB
C
57 lines
1.3 KiB
C
/*
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* MS5611 pressure and temperature sensor driver
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*
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* Copyright (c) Tomasz Duszynski <tduszyns@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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*/
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#ifndef _MS5611_H
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#define _MS5611_H
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#include <linux/device.h>
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#include <linux/iio/iio.h>
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#include <linux/mutex.h>
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#define MS5611_RESET 0x1e
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#define MS5611_READ_ADC 0x00
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#define MS5611_READ_PROM_WORD 0xA0
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#define MS5611_START_TEMP_CONV 0x58
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#define MS5611_START_PRESSURE_CONV 0x48
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#define MS5611_CONV_TIME_MIN 9040
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#define MS5611_CONV_TIME_MAX 10000
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#define MS5611_PROM_WORDS_NB 8
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enum {
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MS5611,
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MS5607,
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};
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struct ms5611_chip_info {
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u16 prom[MS5611_PROM_WORDS_NB];
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int (*temp_and_pressure_compensate)(struct ms5611_chip_info *chip_info,
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s32 *temp, s32 *pressure);
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};
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struct ms5611_state {
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void *client;
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struct mutex lock;
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int (*reset)(struct device *dev);
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int (*read_prom_word)(struct device *dev, int index, u16 *word);
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int (*read_adc_temp_and_pressure)(struct device *dev,
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s32 *temp, s32 *pressure);
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struct ms5611_chip_info *chip_info;
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};
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int ms5611_probe(struct iio_dev *indio_dev, struct device *dev, int type);
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#endif /* _MS5611_H */
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