ams5915.h

/*
	sensord - Sensor Interface for XCSoar Glide Computer - http://www.openvario.org/
    Copyright (C) 2014  The openvario project
    A detailed list of copyright holders can be found in the file "AUTHORS"

    This program 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 3
    of the License, or (at your option) any later version.

    This program 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 this program; if not, see <http://www.gnu.org/licenses/>.
*/

#pragma once

#include <time.h>
#include <stdint.h>

// variable definitions

// define struct for AMS5915 sensor
typedef struct {
	int fd;
	unsigned char address;
	uint16_t digoutpmin;
	uint16_t digoutpmax;
	uint16_t digoutp;
	uint16_t digoutT;
	uint8_t pmin;
	uint8_t pmax;
	float sensp;
	float T;
	float p;
	float linearity;
	float offset;
	int valid;
} t_ams5915;

// prototypes
int ams5915_init(t_ams5915 *);
int ams5915_measure(t_ams5915 *);
int ams5915_calculate(t_ams5915 *);
int ams5915_open(t_ams5915 *, unsigned char);