From 76cb841cb886eef6b3bee341a2266c76578724ad Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 03:02:30 +0200 Subject: Adding upstream version 4.19.249. Signed-off-by: Daniel Baumann --- drivers/iio/pressure/ms5611.h | 69 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 69 insertions(+) create mode 100644 drivers/iio/pressure/ms5611.h (limited to 'drivers/iio/pressure/ms5611.h') diff --git a/drivers/iio/pressure/ms5611.h b/drivers/iio/pressure/ms5611.h new file mode 100644 index 000000000..ead9e9f85 --- /dev/null +++ b/drivers/iio/pressure/ms5611.h @@ -0,0 +1,69 @@ +/* + * MS5611 pressure and temperature sensor driver + * + * Copyright (c) Tomasz Duszynski + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#ifndef _MS5611_H +#define _MS5611_H + +#include +#include +#include + +struct regulator; + +#define MS5611_RESET 0x1e +#define MS5611_READ_ADC 0x00 +#define MS5611_READ_PROM_WORD 0xA0 +#define MS5611_PROM_WORDS_NB 8 + +enum { + MS5611, + MS5607, +}; + +struct ms5611_chip_info { + u16 prom[MS5611_PROM_WORDS_NB]; + + int (*temp_and_pressure_compensate)(struct ms5611_chip_info *chip_info, + s32 *temp, s32 *pressure); +}; + +/* + * OverSampling Rate descriptor. + * Warning: cmd MUST be kept aligned on a word boundary (see + * m5611_spi_read_adc_temp_and_pressure in ms5611_spi.c). + */ +struct ms5611_osr { + unsigned long conv_usec; + u8 cmd; + unsigned short rate; +}; + +struct ms5611_state { + void *client; + struct mutex lock; + + const struct ms5611_osr *pressure_osr; + const struct ms5611_osr *temp_osr; + + int (*reset)(struct device *dev); + int (*read_prom_word)(struct device *dev, int index, u16 *word); + int (*read_adc_temp_and_pressure)(struct device *dev, + s32 *temp, s32 *pressure); + + struct ms5611_chip_info *chip_info; + struct regulator *vdd; +}; + +int ms5611_probe(struct iio_dev *indio_dev, struct device *dev, + const char *name, int type); +int ms5611_remove(struct iio_dev *indio_dev); + +#endif /* _MS5611_H */ -- cgit v1.2.3