view Discovery/Src/timer.c @ 307:b6436edfb2c0 cleanup-4

cleanup: factor out unused stopwatch code Visually, this looks a bit of a dangerous cleanup, but its not :-) To explain this cleanup: stopwatch_seconds is never used, so assign to it is useless, and the variable can be removed. Now, stopwatch_start_at_this_dive_time_seconds is not used any more, so remove it as well. Now, look at the boolResetStopwatch code. It is used but only to reset itself. This makes the whole stopwatch block in data_exchange_main.c a useless thing. All the other cleanup is trivial. Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author Jan Mulder <jlmulder@xs4all.nl>
date Wed, 22 May 2019 22:22:15 +0200
parents 90e65971f15d
children ddbe8bed5096
line wrap: on
line source

///////////////////////////////////////////////////////////////////////////////
/// -*- coding: UTF-8 -*-
///
/// \file   Discovery/Src/timer.c
/// \brief  Contains timer related functionality like stopwatch and security stop
/// \author Peter Ryser & heinrichs weikamp gmbh
/// \date   5. Feb.2015 (maybe)
///
/// \details
///
/// $Id$
///////////////////////////////////////////////////////////////////////////////
/// \par Copyright (c) 2014-2018 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/>.
//////////////////////////////////////////////////////////////////////////////

#include "data_central.h"

static long stopWatchTime_Second = 0;
static _Bool bStopWatch = false;
static float stopWatchAverageDepth_Meter = 0.0f;
static long safetyStopCountDown_Second = 0;

void timer_init(void)
{
  stopWatchTime_Second = 0;
  stopWatchAverageDepth_Meter = 0.0f;
  bStopWatch = true;
  safetyStopCountDown_Second = 0;

}

void timer_UpdateSecond(_Bool checkOncePerSecond)
{
    static int last_second = -1;
    static _Bool bSafetyStop = false;
    static float last_depth_meter = 0;

    if(checkOncePerSecond)
    {
        int now =  current_second();
        if( last_second == now)
            return;
        last_second = now;
    }

    /** Stopwatch **/
    if(bStopWatch && !is_ambient_pressure_close_to_surface(&stateUsedWrite->lifeData))
    {
        if(stopWatchTime_Second == 0)
            stopWatchAverageDepth_Meter = stateUsed->lifeData.depth_meter;
        else
            stopWatchAverageDepth_Meter = (stopWatchAverageDepth_Meter * stopWatchTime_Second + stateUsed->lifeData.depth_meter)/ (stopWatchTime_Second + 1);

        stopWatchTime_Second++;
    }

    /** SafetyStop **/
    float depthToStopSafetyStopCount;
    if(settingsGetPointer()->safetystopDuration && (stateUsed->lifeData.max_depth_meter > 10.0f) && (stateUsed->lifeData.dive_time_seconds > 60))
    {

        //No deco when 10 meters are crossed from below => Activate SecurityStop
        if( last_depth_meter > 10.0f && stateUsed->lifeData.depth_meter <= 10.0f)
        {
            if(stateUsed->diveSettings.deco_type.ub.standard == GF_MODE)
            {
                if(stateUsed->decolistBuehlmann.output_ndl_seconds >  0)
                    bSafetyStop = true;
            }
            else
            {
                if(stateUsed->decolistVPM.output_ndl_seconds >  0)
                    bSafetyStop = true;
            }
        }

        //Countdown starts at 5 meters
        if(bSafetyStop && (stateUsed->lifeData.depth_meter - 0.0001f <= (settingsGetPointer()->safetystopDepth) ))
        {
            if(safetyStopCountDown_Second == 0)
            {
                safetyStopCountDown_Second = (settingsGetPointer()->safetystopDuration) * 60;
            }
            else
                safetyStopCountDown_Second--;
        }

        // after safetystopDuration minutes or below 3 (2) meter safetyStop is disabled
        if(settingsGetPointer()->safetystopDepth == 3)
            depthToStopSafetyStopCount = 1.999f; // instead of 2
        else
            depthToStopSafetyStopCount = 2.999f;// instead of 3

        if((safetyStopCountDown_Second == 1) || (stateUsed->lifeData.depth_meter <= depthToStopSafetyStopCount))
        {
            bSafetyStop = false;
            safetyStopCountDown_Second = 0;
        }
    }
    else
    {
        bSafetyStop = false;
        safetyStopCountDown_Second = 0;
    }
    last_depth_meter = stateUsed->lifeData.depth_meter;
}


void timer_Stopwatch_Restart(void)
{
  stopWatchTime_Second = 0;
  stopWatchAverageDepth_Meter = stateUsed->lifeData.depth_meter;
  bStopWatch = true;
}

void timer_Stopwatch_Stop(void)
{
   bStopWatch = false;
}

long timer_Stopwatch_GetTime(void)
{
  return stopWatchTime_Second;
}

float timer_Stopwatch_GetAvarageDepth_Meter(void)
{
  return stopWatchAverageDepth_Meter;
}

long timer_Safetystop_GetCountDown(void)
{
  return safetyStopCountDown_Second;
}

uint8_t timer_Safetystop_GetDepthUpperLimit(void)
{
    if(settingsGetPointer()->safetystopDepth == 3)
        return 2;
    else
        return 3;
}