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// *************************************************************************************************
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//
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// Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/
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//
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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//
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// Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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//
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// Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the
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// distribution.
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//
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// Neither the name of Texas Instruments Incorporated nor the names of
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// its contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// *************************************************************************************************
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#ifndef ALTITUDE_H_
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#define ALTITUDE_H_
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// *************************************************************************************************
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// Include section
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// *************************************************************************************************
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// Prototypes section
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extern void reset_altitude_measurement(void);
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extern u8 is_altitude_measurement(void);
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extern void start_altitude_measurement(void);
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extern void stop_altitude_measurement(void);
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extern void do_altitude_measurement(u8 filter);
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// menu functions
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extern void sx_altitude(u8 line);
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extern void mx_altitude(u8 line);
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extern void display_altitude(u8 line, u8 update);
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// *************************************************************************************************
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// Defines section
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// Stop altitude measurement after 60 minutes to save battery
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#define ALTITUDE_MEASUREMENT_TIMEOUT (60*60u)
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// *************************************************************************************************
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// Global Variable section
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struct alt
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{
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// MENU_ITEM_NOT_VISIBLE, MENU_ITEM_VISIBLE
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menu_t state;
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// Pressure (Pa)
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u32 pressure;
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// Temperature (<28>K)
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u16 temperature;
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// Altitude (m)
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s16 altitude;
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// Altitude offset stored during calibration
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s16 altitude_offset;
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// Timeout
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u16 timeout;
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};
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extern struct alt sAlt;
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// *************************************************************************************************
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// Extern section
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#endif /*ALTITUDE_H_*/
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