mirror of
https://github.com/paparazzi/paparazzi.git
synced 2026-06-04 13:55:40 +08:00
Felix Ruess
82 lines
2.3 KiB
C
82 lines
2.3 KiB
C
/*
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* Copyright (C) 2010 Martin Mueller
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* Copyright (C) 2013 Felix Ruess <felix.ruess@gmail.com>
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*
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* This file is part of paparazzi.
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*
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* paparazzi is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* paparazzi is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with paparazzi; see the file COPYING. If not, write to
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* the Free Software Foundation, 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/** @file peripherals/bmp085.h
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* Bosch BMP085 driver interface.
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*/
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#ifndef BMP085_H
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#define BMP085_H
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#include "mcu_periph/i2c.h"
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#include "std.h"
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enum Bmp085Status {
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BMP085_STATUS_UNINIT,
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BMP085_STATUS_IDLE,
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BMP085_STATUS_START_TEMP,
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BMP085_STATUS_READ_TEMP,
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BMP085_STATUS_START_PRESS,
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BMP085_STATUS_READ_PRESS
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};
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struct Bmp085Calib {
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// These values come from EEPROM on sensor
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int16_t ac1;
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int16_t ac2;
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int16_t ac3;
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uint16_t ac4;
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uint16_t ac5;
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uint16_t ac6;
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int16_t b1;
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int16_t b2;
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int16_t mb;
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int16_t mc;
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int16_t md;
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// These values are calculated
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int32_t b5;
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};
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typedef bool_t (*Bmp085EOC)(void);
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struct Bmp085 {
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struct i2c_periph *i2c_p;
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struct i2c_transaction i2c_trans;
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Bmp085EOC eoc; ///< function to check End Of Conversion
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enum Bmp085Status status; ///< state machine status
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bool_t initialized; ///< config done flag
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volatile bool_t data_available; ///< data ready flag
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struct Bmp085Calib calib;
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int32_t ut; ///< uncompensated temperature
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int32_t up; ///< uncompensated pressure
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int32_t temperature; ///< temperature in 0.1 deg Celcius
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int32_t pressure; ///< pressure in Pascal
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};
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extern void bmp085_read_eeprom_calib(struct Bmp085* bmp);
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extern void bmp085_init(struct Bmp085* bmp, struct i2c_periph *i2c_p, uint8_t addr);
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extern void bmp085_periodic(struct Bmp085* bmp);
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extern void bmp085_event(struct Bmp085* bmp);
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#endif
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