airspeed_ms45xx_i2c.h

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/*
 * Copyright (C) 2014 Freek van Tienen <freek.v.tienen@gmail.com>
 *               2014 Felix Ruess <felix.ruess@gmail.com>
 *
 * This file is part of paparazzi
 *
 * paparazzi is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * paparazzi is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with paparazzi; see the file COPYING.  If not, see
 * <http://www.gnu.org/licenses/>.
 */
 
#ifndef AIRSPEED_MS45XX_I2C_H
#define AIRSPEED_MS45XX_I2C_H
 
#include "std.h"
 
struct AirspeedMs45xx {
  float pressure;              
  int16_t temperature;         
  uint16_t raw_p;              
  float airspeed;              
  bool  pressure_type;         
  float pressure_scale;        
  float pressure_offset;       
  bool autoset_offset;         
  bool offset_set;             
  float lowpass_tau;           
};
 
extern struct AirspeedMs45xx ms45xx;
 
extern void airspeed_ms45xx_i2c_change_tau(float new_tau);
 
extern void ms45xx_i2c_init(void);
extern void ms45xx_i2c_periodic(void);
extern void ms45xx_i2c_event(void);
 
#endif