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Bugfix ppo2 high/low check in OC mode: The fallback option which is used in CC mode was applied to the OC mode as well. As result the check could be deactivated depending on the fallback state, even if a OC dive is performed. now the check will always be performed if the dive mode is OC. Added vibration warning: The internal buzzer of the GPIO_V2 may now be used as additional warning notificator. It can be activated using the check button in the customer view menu. The vibration will be active while the warning message is displayed in the dive window. In case the diver is in the menu then the warning will be active for a shorter duration.
author Ideenmodellierer
date Sun, 29 Dec 2024 18:33:02 +0100
parents 5f38cf765193
children
line wrap: on
line source

/**
  ******************************************************************************
  * @file    check_warning.c
  * @author  heinrichs weikamp gmbh
  * @date    17-Nov-2014
  * @version V0.0.1
  * @since   17-Nov-2014
  * @brief   check and set warnings for warnings
  *
  @verbatim
  ==============================================================================
              ##### How to use #####
  ==============================================================================
  OSTC3 Warnings:
		niedriger Batteriezustand (
		zu hoher oder zu niedriger Sauerstoffpartialdruck (ppO2) 0.2 - 1.6
		zu hoher CNS (Gefahr der Sauerstoffvergiftung) 90%
		zu hohe Gradientenfaktoren 90 - 90
		Missachtung der Dekostopps (der �berschrittene Dekostopp wird rot angezeigt) 0 m
		zu hohe Aufstiegsgeschwindigkeit 30 m/min
		aGF-Warnung: die Berechnung der Dekompression wird �ber alternative GF-Werte durchgef�hrt
		Fallback-Warnung bei ausgefallenem Sensor

	@endverbatim
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT(c) 2014 heinrichs weikamp</center></h2>
  *
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/

#include <stdbool.h>

#include "data_exchange.h"
#include "check_warning.h"
#include "settings.h"
#include "decom.h"
#include "tCCR.h"
#include "tHome.h"


#define DEBOUNCE_FALLBACK_TIME_MS	(5000u)		/* set warning after 5 seconds of pending error condition */
#define GUI_BUZZER_TIMEOUT_MS		(200u)      /* the buzzer should be active while Warning string is shown, but diver may be in a menu... */

#define SETPOINT_DECO_START_RANGE_M 3.0
#define SWITCH_DEPTH_LOW_MINIMUM_M 1.0

/* Private variables with access ----------------------------------------------*/
static uint8_t betterGasId = 0;
static uint8_t betterBailoutGasId = 0;
static uint8_t betterSetpointId = 1;
static int8_t fallback = 0;
static uint16_t debounceFallbackTimeMS = 0;
static uint8_t buzzerRequestActive = 0;

/* Private function prototypes -----------------------------------------------*/
static int8_t check_fallback(SDiveState * pDiveState);
static int8_t check_ppO2(SDiveState * pDiveState);
static int8_t check_O2_sensors(SDiveState * pDiveState);
static int8_t check_CNS(SDiveState * pDiveState);
static int8_t check_Deco(SDiveState * pDiveState);
static int8_t check_AscentRate(SDiveState * pDiveState);
static int8_t check_aGF(SDiveState * pDiveState);
static int8_t check_BetterGas(SDiveState * pDiveState);
static int8_t check_BetterSetpoint(SDiveState * pDiveState);
static int8_t check_Battery(SDiveState * pDiveState);
#ifdef ENABLE_BOTTLE_SENSOR
static int8_t check_pressureSensor(SDiveState * pDiveState);
#endif
#ifdef ENABLE_CO2_SUPPORT
static int8_t check_co2(SDiveState * pDiveState);
#endif
static int8_t check_helper_same_oxygen_and_helium_content(SGasLine * gas1, SGasLine * gas2);
#ifdef HAVE_DEBUG_WARNINGS
static int8_t check_debug(SDiveState * pDiveState);
#endif
static uint8_t buzzerOn = 0;			/* current state of the buzzer */

static void setBuzzer(int8_t warningActive);
/* Exported functions --------------------------------------------------------*/

void requestBuzzerActivation(uint8_t active)
{
	buzzerRequestActive = active;
}

uint8_t getBuzzerActivationState()
{
	return buzzerOn;
}

static void setBuzzer(int8_t warningActive)
{
	static uint32_t guiTimeoutCnt = 0;		/* max delay till buzzer will be activated independend from gui request */
	static uint32_t stateTick = 0;			/* activation tick of current state */
	static uint8_t lastWarningState = 0;	/* the parameter value of the last call*/

	uint32_t tick =  HAL_GetTick();

	if(warningActive)
	{
		if(!lastWarningState)				/* init structures */
		{
			guiTimeoutCnt = tick;
			stateTick = tick;
		}
		if(buzzerOn)
		{
			if(time_elapsed_ms(stateTick, tick) > EXT_INTERFACE_BUZZER_STABLE_TIME_MS)	/* buzzer has to be on for a certain time */
			{
				if((!buzzerRequestActive) || (time_elapsed_ms(stateTick, tick) > EXT_INTERFACE_BUZZER_ON_TIME_MS))
				{
					buzzerOn = 0;
					stateTick = tick;
					guiTimeoutCnt = tick;
				}
			}
		}
		else
		{
			if(time_elapsed_ms(stateTick, tick) > EXT_INTERFACE_BUZZER_STABLE_TIME_MS)	/* buzzer has to be off for a certain time */
			{
				if((buzzerRequestActive) || (time_elapsed_ms(guiTimeoutCnt, tick) > EXT_INTERFACE_BUZZER_ON_TIME_MS + GUI_BUZZER_TIMEOUT_MS))
				{
					buzzerOn = 1;
					stateTick = tick;
				}
			}
		}
	}
	else
	{
		buzzerOn = 0;
	}
	lastWarningState = warningActive;
}

void check_warning(void)
{
  check_warning2(stateUsedWrite);
}


void check_warning2(SDiveState * pDiveState)
{
  pDiveState->warnings.numWarnings = 0;

/* Warnings checked before the SetBuzzer call will activate the buzzer */
	pDiveState->warnings.numWarnings += check_AscentRate(pDiveState);
	pDiveState->warnings.numWarnings += check_Deco(pDiveState);
	pDiveState->warnings.numWarnings += check_ppO2(pDiveState);
	pDiveState->warnings.numWarnings += check_O2_sensors(pDiveState);
	pDiveState->warnings.numWarnings += check_fallback(pDiveState);
#ifdef ENABLE_CO2_SUPPORT
	pDiveState->warnings.numWarnings += check_co2(pDiveState);
#endif

	if(settingsGetPointer()->warningBuzzer)
	{
		setBuzzer(pDiveState->warnings.numWarnings);
	}

/* Warnings checked after this line will not cause activation of the buzzer */
	pDiveState->warnings.numWarnings += check_aGF(pDiveState);
	pDiveState->warnings.numWarnings += check_CNS(pDiveState);
	pDiveState->warnings.numWarnings += check_BetterGas(pDiveState);
	pDiveState->warnings.numWarnings += check_BetterSetpoint(pDiveState);
	pDiveState->warnings.numWarnings += check_Battery(pDiveState);
#ifdef ENABLE_BOTTLE_SENSOR
	pDiveState->warnings.numWarnings += check_pressureSensor(pDiveState);
#endif

#ifdef HAVE_DEBUG_WARNINGS
	pDiveState->warnings.numWarnings += check_debug(pDiveState);
#endif
}


void set_warning_fallback(void)
{
	fallback = 1;
}


void clear_warning_fallback(void)
{
	fallback = 0;
	debounceFallbackTimeMS = 0;
}


uint8_t actualBetterGasId(void)
{
	return betterGasId;
}


uint8_t actualBetterBailoutGasId(void)
{
	return betterBailoutGasId;
}


uint8_t actualBetterSetpointId(void)
{
	return betterSetpointId;
}


uint8_t actualLeftMaxDepth(const SDiveState * pDiveState)
{
	if(pDiveState->lifeData.depth_meter > (pDiveState->lifeData.max_depth_meter - 3.0f))
		return 0;
	else
		return 1;
}


/* Private functions ---------------------------------------------------------*/
static int8_t check_fallback(SDiveState * pDiveState)
{
	if(fallback && ((pDiveState->mode != MODE_DIVE) || (!isLoopMode(pDiveState->diveSettings.diveMode))))
		fallback = 0;
	
	pDiveState->warnings.fallback = fallback;
	return pDiveState->warnings.fallback;
}


static int8_t check_ppO2(SDiveState * pDiveState)
{
	if((pDiveState->mode != MODE_DIVE) || ((isLoopMode(pDiveState->diveSettings.diveMode) && (pDiveState->warnings.fallback))))
	{
		pDiveState->warnings.ppO2Low = 0;
		pDiveState->warnings.ppO2High = 0;
		return 0;
	}

	uint8_t localPPO2, testPPO2high;

	if(pDiveState->lifeData.ppO2 < 0)
		localPPO2 = 0;
	else
	if(pDiveState->lifeData.ppO2 >= 2.5f)
		localPPO2 = 255;
	else
	localPPO2 = (uint8_t)(pDiveState->lifeData.ppO2 * 100);

	if((localPPO2 + 1) <= settingsGetPointer()->ppO2_min)
			pDiveState->warnings.ppO2Low = 1;
	else
			pDiveState->warnings.ppO2Low = 0;
	
	if(actualLeftMaxDepth(pDiveState))
		testPPO2high = settingsGetPointer()->ppO2_max_deco;
	else
		testPPO2high = settingsGetPointer()->ppO2_max_std;

	if(localPPO2 >= (testPPO2high + 1))
			pDiveState->warnings.ppO2High = 1;
	else
			pDiveState->warnings.ppO2High = 0;

	return pDiveState->warnings.ppO2Low + pDiveState->warnings.ppO2High;
}


static int8_t check_O2_sensors(SDiveState * pDiveState)
{
	pDiveState->warnings.sensorLinkLost = 0;
	pDiveState->warnings.sensorOutOfBounds[0] = 0;
	pDiveState->warnings.sensorOutOfBounds[1] = 0;
	pDiveState->warnings.sensorOutOfBounds[2] = 0;

	if(isLoopMode(pDiveState->diveSettings.diveMode) && (pDiveState->diveSettings.CCR_Mode == CCRMODE_Sensors))
	{
		if(settingsGetPointer()->ppo2sensors_source == O2_SENSOR_SOURCE_OPTIC)
		{
			{
				if(!get_HUD_battery_voltage_V())
					pDiveState->warnings.sensorLinkLost = 1;
			}
		}
		test_O2_sensor_values_outOfBounds(&pDiveState->warnings.sensorOutOfBounds[0], &pDiveState->warnings.sensorOutOfBounds[1], &pDiveState->warnings.sensorOutOfBounds[2]);
	}
	return 		pDiveState->warnings.sensorLinkLost
					+ pDiveState->warnings.sensorOutOfBounds[0]
					+ pDiveState->warnings.sensorOutOfBounds[1]
					+ pDiveState->warnings.sensorOutOfBounds[2];
}


static uint8_t getBetterGasId(bool getDiluent, uint8_t startingGasId, SDiveState *diveState)
{
    SDiveSettings diveSettings = diveState->diveSettings;
    SGasLine localGas;
    uint8_t betterGasIdLocal = startingGasId;
    uint8_t bestGasDepth = 255;
    uint8_t i;

    uint8_t gasIdOffset;
    if (getDiluent) {
        gasIdOffset = NUM_OFFSET_DILUENT;
    } else {
        gasIdOffset = 0;
    }

	/* life data is float, gas data is uint8 */
    if (actualLeftMaxDepth(diveState)) { /* deco gases */
        for (i=1+gasIdOffset; i<= 5+gasIdOffset; i++) {
        	memcpy(&localGas,&diveSettings.gas[i],sizeof(SGasLine));
        	if((localGas.note.ub.first) && (diveSettings.diveMode == DIVEMODE_PSCR))	/* handle first gas as if it would be a deco gas set to MOD */
        	{
        		localGas.note.ub.active = 1;
        		localGas.note.ub.deco = 1;
        		localGas.depth_meter = calc_MOD(i);
        	}
            if ((localGas.note.ub.active)
                && (localGas.note.ub.deco)
                && (localGas.depth_meter)
                && (localGas.depth_meter >= (diveState->lifeData.depth_meter - 0.9f ))
                && (localGas.depth_meter <= bestGasDepth)) {
                betterGasIdLocal = i;
                bestGasDepth = diveSettings.gas[i].depth_meter;
            }
        }
    } else { /* travel gases */
        bestGasDepth = 0;
        //check for travalgas
        for (i = 1 + gasIdOffset; i <= 5 + gasIdOffset; i++) {
            if ((diveSettings.gas[i].note.ub.active)
                && (diveSettings.gas[i].note.ub.travel)
                && (diveSettings.gas[i].depth_meter_travel)
                && (diveSettings.gas[i].depth_meter_travel <= (diveState->lifeData.depth_meter + 0.01f ))
                && (diveSettings.gas[i].depth_meter_travel >= bestGasDepth)) {
                betterGasIdLocal = i;
                bestGasDepth = diveSettings.gas[i].depth_meter;
            }
        }
    }
    if((!getDiluent) && (betterGasIdLocal > NUM_OFFSET_DILUENT))	/* an OC gas was requested but Id is pointing to a diluent => return first OC */
    {
    	for (i = 1 ; i <= NUM_OFFSET_DILUENT; i++)
    	{
    		if(diveSettings.gas[i].note.ub.first)
    		{
    			betterGasIdLocal = i;
    			break;
    		}
    	}
    }


    return betterGasIdLocal;
}


static int8_t check_BetterGas(SDiveState *diveState)
{
    diveState->warnings.betterGas = 0;

    if (stateUsed->mode != MODE_DIVE) {
        betterGasId = 0;

        return 0;
    }

    SDiveSettings diveSettings = diveState->diveSettings;
    SLifeData lifeData = diveState->lifeData;

    if (isLoopMode(diveSettings.diveMode)) {
        betterGasId = getBetterGasId(true, lifeData.actualGas.GasIdInSettings, diveState);
        betterBailoutGasId = getBetterGasId(false, lifeData.lastDiluent_GasIdInSettings, diveState);
    } else {
        betterGasId = getBetterGasId(false, lifeData.actualGas.GasIdInSettings, diveState);
    }

    if (betterGasId != lifeData.actualGas.GasIdInSettings && !check_helper_same_oxygen_and_helium_content(&diveSettings.gas[betterGasId], &diveSettings.gas[lifeData.actualGas.GasIdInSettings])) {
        diveState->warnings.betterGas = 1;
    }

    return diveState->warnings.betterGas;
}


uint8_t getSetpointLowId(void)
{
    SSettings *settings = settingsGetPointer();

    if (settings->autoSetpoint) {
        return SETPOINT_INDEX_AUTO_LOW;
    }

    uint8_t setpointLowId = 0;
    uint8_t setpointLowDepthM = UINT8_MAX;
    for (unsigned i = 1; i <= NUM_GASES; i++) {
        if (stateUsed->diveSettings.setpoint[i].depth_meter && stateUsed->diveSettings.setpoint[i].depth_meter < setpointLowDepthM) {
            setpointLowId = i;
            setpointLowDepthM = stateUsed->diveSettings.setpoint[i].depth_meter;
        }
    }

    return setpointLowId;
}


uint8_t getSetpointHighId(void)
{
    SSettings *settings = settingsGetPointer();

    if (settings->autoSetpoint) {
        return SETPOINT_INDEX_AUTO_HIGH;
    }

    uint8_t setpointHighId = 0;
    uint8_t setpointHighDepthM = 0;
    for (unsigned i = 1; i <= NUM_GASES; i++) {
        if (stateUsed->diveSettings.setpoint[i].depth_meter && stateUsed->diveSettings.setpoint[i].depth_meter >= setpointHighDepthM) {
            setpointHighId = i;
            setpointHighDepthM = stateUsed->diveSettings.setpoint[i].depth_meter;
        }
    }

    return setpointHighId;
}


uint8_t getSetpointDecoId(void)
{
    SSettings *settings = settingsGetPointer();

    if (settings->autoSetpoint && stateUsed->diveSettings.setpoint[SETPOINT_INDEX_AUTO_DECO].note.ub.active) {
        return SETPOINT_INDEX_AUTO_DECO;
    }

    return 0;
}


/* check for better travel!!! setpoint hw 151210
 */
static int8_t check_BetterSetpoint(SDiveState *diveState)
{
    diveState->warnings.betterSetpoint = 0;

    if (stateUsed->mode != MODE_DIVE) {
        betterSetpointId = 1;

        return 0;
    }

    SSettings *settings = settingsGetPointer();

    float currentDepthM = diveState->lifeData.depth_meter;
    float lastChangeDepthM = diveState->lifeData.lastSetpointChangeDepthM;
    if (settings->dive_mode == DIVEMODE_CCR && lastChangeDepthM != currentDepthM) {
        bool descending = currentDepthM > lastChangeDepthM;
        uint8_t betterSetpointIdLocal = 0;

        if (settings->autoSetpoint) {
            bool decoSetpointEnabled = diveState->diveSettings.setpoint[SETPOINT_INDEX_AUTO_DECO].note.ub.active;
            const SDecoinfo *decoInfo = getDecoInfo();
            uint8_t nextDecoStopDepthM;
            uint16_t nextDecoStopTimeRemainingS;
            tHome_findNextStop(decoInfo->output_stop_length_seconds, &nextDecoStopDepthM, &nextDecoStopTimeRemainingS);

            if (decoSetpointEnabled && nextDecoStopDepthM && currentDepthM < nextDecoStopDepthM + SETPOINT_DECO_START_RANGE_M && !diveState->lifeData.setpointDecoActivated) {
                betterSetpointIdLocal = SETPOINT_INDEX_AUTO_DECO;
                diveState->lifeData.setpointDecoActivated = true;
            }

            if (descending) {
                uint8_t switchDepthHighM = diveState->diveSettings.setpoint[SETPOINT_INDEX_AUTO_HIGH].depth_meter;

                if (lastChangeDepthM < switchDepthHighM && switchDepthHighM < currentDepthM && !diveState->lifeData.setpointDecoActivated) {
                    betterSetpointIdLocal = SETPOINT_INDEX_AUTO_HIGH;
                }
            } else {
                uint8_t switchDepthLowM = diveState->diveSettings.setpoint[SETPOINT_INDEX_AUTO_LOW].depth_meter;

                if (lastChangeDepthM > SWITCH_DEPTH_LOW_MINIMUM_M && SWITCH_DEPTH_LOW_MINIMUM_M > currentDepthM) {
                    // Avoid draining the oxygen supply by surfacing with a setpoint >= 1.0
                    betterSetpointIdLocal = SETPOINT_INDEX_AUTO_LOW;
                    diveState->lifeData.setpointLowDelayed = false;
                } else if (lastChangeDepthM > switchDepthLowM && switchDepthLowM > currentDepthM) {
                    if (nextDecoStopDepthM && settings->delaySetpointLow) {
                        diveState->lifeData.setpointLowDelayed = true;
                    } else {
                        betterSetpointIdLocal = SETPOINT_INDEX_AUTO_LOW;
                    }
                }
            }

            if (!nextDecoStopDepthM) {
                // Update the state when the decompression obligation ends
                diveState->lifeData.setpointDecoActivated = false;

                if (diveState->lifeData.setpointLowDelayed) {
                    betterSetpointIdLocal = SETPOINT_INDEX_AUTO_LOW;
                    diveState->lifeData.setpointLowDelayed = false;
                }
            }
        } else {
            uint8_t setpointLowId = getSetpointLowId();
            uint8_t setpointHighId = getSetpointHighId();
            uint8_t betterSetpointSwitchDepthM = descending ? 0 : UINT8_MAX;

            for (unsigned i = 1; i <= NUM_GASES; i++) {
                uint8_t switchDepthM = diveState->diveSettings.setpoint[i].depth_meter;
                if (!switchDepthM || (descending && i == setpointLowId) || (!descending && i == setpointHighId)) {
                    continue;
                }

                if ((descending && lastChangeDepthM < switchDepthM && switchDepthM < currentDepthM && switchDepthM > betterSetpointSwitchDepthM)
                    || (!descending && lastChangeDepthM > switchDepthM && switchDepthM > currentDepthM && switchDepthM <= betterSetpointSwitchDepthM)) {
                    betterSetpointIdLocal = i;
                    betterSetpointSwitchDepthM = switchDepthM;
                }
            }
        }

        if (betterSetpointIdLocal) {
            betterSetpointId = betterSetpointIdLocal;
            if (diveState->diveSettings.diveMode == DIVEMODE_CCR && diveState->diveSettings.setpoint[betterSetpointIdLocal].setpoint_cbar != diveState->lifeData.actualGas.setPoint_cbar) {
                diveState->warnings.betterSetpoint = 1;
            }
        }
    }

    return diveState->warnings.betterSetpoint;
}


/* hw 151030
 */
static int8_t check_helper_same_oxygen_and_helium_content(SGasLine * gas1, SGasLine * gas2)
{
	if(gas1->helium_percentage != gas2->helium_percentage)
		return 0;
	else
	if(gas1->oxygen_percentage != gas2->oxygen_percentage)
		return 0;
	else
		return 1;
}


static int8_t check_CNS(SDiveState * pDiveState)
{
	if(stateUsed->mode != MODE_DIVE)
	{
		pDiveState->warnings.cnsHigh = 0;
		return 0;
	}
	
	if(pDiveState->lifeData.cns >= (float)(settingsGetPointer()->CNS_max))
			pDiveState->warnings.cnsHigh = 1;
	else
			pDiveState->warnings.cnsHigh = 0;
	return pDiveState->warnings.cnsHigh;
}


static int8_t check_Battery(SDiveState * pDiveState)
{
	if((pDiveState->lifeData.battery_charge > 0) && (pDiveState->lifeData.battery_charge < 10))
		pDiveState->warnings.lowBattery = 1;
	else
		pDiveState->warnings.lowBattery = 0;
	
  return pDiveState->warnings.lowBattery;
}


static int8_t check_Deco(SDiveState * pDiveState)
{
	if(stateUsed->mode != MODE_DIVE)
	{
		pDiveState->warnings.decoMissed = 0;
		return 0;
	}

	uint8_t depthNext = decom_get_actual_deco_stop(pDiveState);
	
	if(!depthNext)
      pDiveState->warnings.decoMissed = 0;
	else
  if(pDiveState->lifeData.depth_meter + 0.1f < (float)depthNext)
      pDiveState->warnings.decoMissed = 1;
  else
      pDiveState->warnings.decoMissed = 0;
	
  return pDiveState->warnings.decoMissed;
}


static int8_t check_AscentRate(SDiveState * pDiveState)
{
	if(stateUsed->mode != MODE_DIVE)
	{
		pDiveState->warnings.ascentRateHigh = 0;
		return 0;
	}

	float warnAscentRateFloat;

	warnAscentRateFloat = (float)(settingsGetPointer()->ascent_MeterPerMinute_max);

	if(pDiveState->lifeData.ascent_rate_meter_per_min >= warnAscentRateFloat)
			pDiveState->warnings.ascentRateHigh = 1;
	else
			pDiveState->warnings.ascentRateHigh = 0;
	return pDiveState->warnings.ascentRateHigh;
}


static int8_t check_aGF(SDiveState * pDiveState)
{
	if(stateUsed->mode != MODE_DIVE)
	{
		pDiveState->warnings.aGf = 0;
		return 0;
	}

  pDiveState->warnings.aGf = 0;
  if(pDiveState->diveSettings.deco_type.ub.standard == GF_MODE)
  {
    if((pDiveState->diveSettings.gf_high != settingsGetPointer()->GF_high) || (pDiveState->diveSettings.gf_low != settingsGetPointer()->GF_low))
      pDiveState->warnings.aGf = 1;
  }
  return pDiveState->warnings.aGf;
}

#ifdef ENABLE_BOTTLE_SENSOR
static int8_t check_pressureSensor(SDiveState * pDiveState)
{
	int8_t ret = 0;
	if(pDiveState->lifeData.bottle_bar_age_MilliSeconds[pDiveState->lifeData.actualGas.GasIdInSettings] < 50)	/* we received a new value */
	{
		pDiveState->warnings.newPressure = stateUsed->lifeData.bottle_bar[stateUsed->lifeData.actualGas.GasIdInSettings];
		ret = 1;
	}
	else
	{
		pDiveState->warnings.newPressure = 0;
	}
	return ret;
}
#endif

#ifdef ENABLE_CO2_SUPPORT
static int8_t check_co2(SDiveState * pDiveState)
{
	if((pDiveState->mode != MODE_DIVE) || (settingsGetPointer()->co2_sensor_active == 0))
	{
		pDiveState->warnings.co2High = 0;
	}
	else
	{
		if(pDiveState->lifeData.CO2_data.CO2_ppm > CO2_ALARM_LEVEL_PPM)
		{
			pDiveState->warnings.co2High = 1;
		}
		else
		{
			pDiveState->warnings.co2High = 0;
		}
	}
	return pDiveState->warnings.co2High;
}
#endif

#ifdef HAVE_DEBUG_WARNINGS
static int8_t check_debug(SDiveState * pDiveState)
{
	uint8_t index = 0;

	pDiveState->warnings.debug = 0;

	if((settingsGetPointer()->ppo2sensors_source == O2_SENSOR_SOURCE_DIGITAL) || (settingsGetPointer()->ppo2sensors_source == O2_SENSOR_SOURCE_ANADIG))
	{
	    for(index=0; index<3; index++)
	    {
        	if(((pDiveState->lifeData.extIf_sensor_map[index] == SENSOR_DIGO2M) && (((SSensorDataDiveO2*)(stateUsed->lifeData.extIf_sensor_data[index]))->status & DVO2_FATAL_ERROR)))
        	{
        		pDiveState->warnings.debug = 1;
        	}
	    }
	}
	return pDiveState->warnings.debug;
}
#endif

uint8_t debounce_warning_fallback(uint16_t debounceStepms)
{
	uint8_t retVal = 0;

	debounceFallbackTimeMS += debounceStepms;
	if(debounceFallbackTimeMS > DEBOUNCE_FALLBACK_TIME_MS)
	{
		debounceFallbackTimeMS = DEBOUNCE_FALLBACK_TIME_MS;
		retVal = 1;
	}
	return retVal;
}
void reset_debounce_warning_fallback()
{
	debounceFallbackTimeMS = 0;
}
/************************ (C) COPYRIGHT heinrichs weikamp *****END OF FILE****/