1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * MS5611 pressure and temperature sensor driver 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * Copyright (c) Tomasz Duszynski <tduszyns@gmail.com> 6*4882a593Smuzhiyun * 7*4882a593Smuzhiyun */ 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun #ifndef _MS5611_H 10*4882a593Smuzhiyun #define _MS5611_H 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun #include <linux/device.h> 13*4882a593Smuzhiyun #include <linux/iio/iio.h> 14*4882a593Smuzhiyun #include <linux/mutex.h> 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun struct regulator; 17*4882a593Smuzhiyun 18*4882a593Smuzhiyun #define MS5611_RESET 0x1e 19*4882a593Smuzhiyun #define MS5611_READ_ADC 0x00 20*4882a593Smuzhiyun #define MS5611_READ_PROM_WORD 0xA0 21*4882a593Smuzhiyun #define MS5611_PROM_WORDS_NB 8 22*4882a593Smuzhiyun 23*4882a593Smuzhiyun enum { 24*4882a593Smuzhiyun MS5611, 25*4882a593Smuzhiyun MS5607, 26*4882a593Smuzhiyun }; 27*4882a593Smuzhiyun 28*4882a593Smuzhiyun /* 29*4882a593Smuzhiyun * OverSampling Rate descriptor. 30*4882a593Smuzhiyun * Warning: cmd MUST be kept aligned on a word boundary (see 31*4882a593Smuzhiyun * m5611_spi_read_adc_temp_and_pressure in ms5611_spi.c). 32*4882a593Smuzhiyun */ 33*4882a593Smuzhiyun struct ms5611_osr { 34*4882a593Smuzhiyun unsigned long conv_usec; 35*4882a593Smuzhiyun u8 cmd; 36*4882a593Smuzhiyun unsigned short rate; 37*4882a593Smuzhiyun }; 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun struct ms5611_state { 40*4882a593Smuzhiyun void *client; 41*4882a593Smuzhiyun struct mutex lock; 42*4882a593Smuzhiyun 43*4882a593Smuzhiyun const struct ms5611_osr *pressure_osr; 44*4882a593Smuzhiyun const struct ms5611_osr *temp_osr; 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun u16 prom[MS5611_PROM_WORDS_NB]; 47*4882a593Smuzhiyun 48*4882a593Smuzhiyun int (*reset)(struct ms5611_state *st); 49*4882a593Smuzhiyun int (*read_prom_word)(struct ms5611_state *st, int index, u16 *word); 50*4882a593Smuzhiyun int (*read_adc_temp_and_pressure)(struct ms5611_state *st, 51*4882a593Smuzhiyun s32 *temp, s32 *pressure); 52*4882a593Smuzhiyun 53*4882a593Smuzhiyun int (*compensate_temp_and_pressure)(struct ms5611_state *st, s32 *temp, 54*4882a593Smuzhiyun s32 *pressure); 55*4882a593Smuzhiyun struct regulator *vdd; 56*4882a593Smuzhiyun }; 57*4882a593Smuzhiyun 58*4882a593Smuzhiyun int ms5611_probe(struct iio_dev *indio_dev, struct device *dev, 59*4882a593Smuzhiyun const char *name, int type); 60*4882a593Smuzhiyun int ms5611_remove(struct iio_dev *indio_dev); 61*4882a593Smuzhiyun 62*4882a593Smuzhiyun #endif /* _MS5611_H */ 63