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Added configuration menu for HUD functions: The V1 HUD has 4 functions (holes) which may be realized by one or two LEDs. The functions (like ppo2 monitoring or ascent speed) may be configurated by the diver using the HUD menu. The functions which may be selected depend on the HW configuration (e.g. the connected sensors) and the number of LEDs which are needed to realize the function. The previous HUD test implementation may still be activate usind the compile switch ENABLE_HUD_TESTING
author Ideenmodellierer
date Sun, 15 Mar 2026 21:40:35 +0100
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///////////////////////////////////////////////////////////////////////////////
/// -*- coding: UTF-8 -*-
///
/// \file   Discovery/Inc/hud.h
/// \brief
/// \author Heinrichs Weikamp
/// \date   2026
///
/// $Id$
///////////////////////////////////////////////////////////////////////////////
/// \par Copyright (c) 2014-2026 Heinrichs Weikamp gmbh
///
///     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/>.
//////////////////////////////////////////////////////////////////////////////

#ifndef HUD_H
#define HUD_H

#include <stdint.h>
#include <stdio.h>
#include <string.h>

#include "text_multilanguage.h"

#define NUM_OF_HUD_FCT				(4u)	/* number of different functions which may be displayed at HUD at once */
#define HUD_INFO_DATA_LENGTH		(24u)	/* expected number of received info data */
#define HUD_INFO_INFOSTR_LENGTH		(16u)


#define HUD_INFO_INFOSTR_OFFSET		(3u)	/* offset of info string */
#define HUD_INFO_VERSION_OFFSET		(19u)	/* offset of version byte */

enum hudFct
{
	HUD_FCT_NONE		= 0,	/* Slot will not be used */
	HUD_FCT_WARNING,			/* Show common warning indicator */
	HUD_FCT_PPO2SUM,			/* Show combined PPO2 status */
	HUD_FCT_PPO2_0,				/* Show individual PPO2 status (sensor 0) */
	HUD_FCT_PPO2_1,				/* Show individual PPO2 status (sensor 1) */
	HUD_FCT_PPO2_2,				/* Show individual PPO2 status (sensor 2) */
	HUD_FCT_ASCENT_SPEED,		/* Show indicator for ascent speed */
	HUD_FCT_DECO,				/* Show deco / depth indicator */
	HUD_FCT_END
};

void hud_Init(void);
void hud_GetString(uint8_t id, uint8_t* pText);
uint8_t hud_NextFct(uint8_t curFct, uint8_t fctId);
void hud_UpdateStatus(void);
uint8_t hud_IsActive(void);
uint8_t hud_GetAddress(void);

#endif /* HUD_H */