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1/* SPDX-License-Identifier: GPL-2.0 */2/*3 * MS5611 pressure and temperature sensor driver4 *5 * Copyright (c) Tomasz Duszynski <tduszyns@gmail.com>6 *7 */8 9#ifndef _MS5611_H10#define _MS5611_H11 12#include <linux/device.h>13#include <linux/iio/iio.h>14#include <linux/mutex.h>15 16#define MS5611_RESET 0x1e17#define MS5611_READ_ADC 0x0018#define MS5611_READ_PROM_WORD 0xA019#define MS5611_PROM_WORDS_NB 820 21enum {22 MS5611,23 MS5607,24};25 26/*27 * OverSampling Rate descriptor.28 * Warning: cmd MUST be kept aligned on a word boundary (see29 * m5611_spi_read_adc_temp_and_pressure in ms5611_spi.c).30 */31struct ms5611_osr {32 unsigned long conv_usec;33 u8 cmd;34 unsigned short rate;35};36 37struct ms5611_state {38 void *client;39 struct mutex lock;40 41 const struct ms5611_osr *pressure_osr;42 const struct ms5611_osr *temp_osr;43 44 u16 prom[MS5611_PROM_WORDS_NB];45 46 int (*reset)(struct ms5611_state *st);47 int (*read_prom_word)(struct ms5611_state *st, int index, u16 *word);48 int (*read_adc_temp_and_pressure)(struct ms5611_state *st,49 s32 *temp, s32 *pressure);50 51 int (*compensate_temp_and_pressure)(struct ms5611_state *st, s32 *temp,52 s32 *pressure);53};54 55int ms5611_probe(struct iio_dev *indio_dev, struct device *dev,56 const char *name, int type);57 58#endif /* _MS5611_H */59