projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| c0644160 TD |
1 | /* |
| 2 | * MS5611 pressure and temperature sensor driver | |
| 3 | * | |
| 4 | * Copyright (c) Tomasz Duszynski <tduszyns@gmail.com> | |
| 5 | * | |
| 6 | * This program is free software; you can redistribute it and/or modify | |
| 7 | * it under the terms of the GNU General Public License version 2 as | |
| 8 | * published by the Free Software Foundation. | |
| 9 | * | |
| 10 | */ | |
| 11 | ||
| 12 | #ifndef _MS5611_H | |
| 13 | #define _MS5611_H | |
| 14 | ||
| 15 | #include <linux/device.h> | |
| 16 | #include <linux/iio/iio.h> | |
| 17 | #include <linux/mutex.h> | |
| 18 | ||
| 19 | #define MS5611_RESET 0x1e | |
| 20 | #define MS5611_READ_ADC 0x00 | |
| 21 | #define MS5611_READ_PROM_WORD 0xA0 | |
| 22 | #define MS5611_START_TEMP_CONV 0x58 | |
| 23 | #define MS5611_START_PRESSURE_CONV 0x48 | |
| 24 | ||
| 25 | #define MS5611_CONV_TIME_MIN 9040 | |
| 26 | #define MS5611_CONV_TIME_MAX 10000 | |
| 27 | ||
| 28 | #define MS5611_PROM_WORDS_NB 8 | |
| 29 | ||
| 30 | struct ms5611_state { | |
| 31 | void *client; | |
| 32 | struct mutex lock; | |
| 33 | ||
| 34 | int (*reset)(struct device *dev); | |
| 35 | int (*read_prom_word)(struct device *dev, int index, u16 *word); | |
| 36 | int (*read_adc_temp_and_pressure)(struct device *dev, | |
| 37 | s32 *temp, s32 *pressure); | |
| 38 | ||
| 39 | u16 prom[MS5611_PROM_WORDS_NB]; | |
| 40 | }; | |
| 41 | ||
| 42 | int ms5611_probe(struct iio_dev *indio_dev, struct device *dev); | |
| 43 | ||
| 44 | #endif /* _MS5611_H */ |