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66 lines
1.4 KiB
66 lines
1.4 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* |
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* MS5611 pressure and temperature sensor driver |
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* |
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* Copyright (c) Tomasz Duszynski <[email protected]> |
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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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struct regulator; |
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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_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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/* |
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* OverSampling Rate descriptor. |
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* Warning: cmd MUST be kept aligned on a word boundary (see |
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* m5611_spi_read_adc_temp_and_pressure in ms5611_spi.c). |
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*/ |
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struct ms5611_osr { |
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unsigned long conv_usec; |
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u8 cmd; |
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unsigned short rate; |
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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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const struct ms5611_osr *pressure_osr; |
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const struct ms5611_osr *temp_osr; |
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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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struct regulator *vdd; |
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}; |
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int ms5611_probe(struct iio_dev *indio_dev, struct device *dev, |
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const char *name, int type); |
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int ms5611_remove(struct iio_dev *indio_dev); |
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#endif /* _MS5611_H */
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