# HG changeset patch
# User Ideenmodellierer
# Date 1599423111 -7200
# Node ID 2c49561c8062a7286c2655c5da1f8577ee751785
# Parent  0a09afac969fcbbc51a9750b728c888a2d8a2e1e
Reset Safety Stop display in case of a new descend:
In previous version safety stop was displayed in while the stop depth was reached. The count down was interrupted in case of a new descend but the safety stop was still displayed, blocking the NDL visualization in the big font view. To avoid this scenario a restart function has been added which will return to NDL view in case of a descend > 2m. If just a short drop happend then the countdown will be continued when the safety stop depth is reached again. If that takes more then a minute the safety stop counter is restarted.

diff -r 0a09afac969f -r 2c49561c8062 Discovery/Src/timer.c
--- a/Discovery/Src/timer.c	Sun Sep 06 21:17:59 2020 +0200
+++ b/Discovery/Src/timer.c	Sun Sep 06 22:11:51 2020 +0200
@@ -46,6 +46,8 @@
     static int last_second = -1;
     static _Bool bSafetyStop = false;
     static float last_depth_meter = 0;
+    static uint8_t safetyStopResetCnt = 0;
+    static uint16_t safetyStopRestartCnt = 0;
     long stopWatchTime_Second = 0;
 
     if(checkOncePerSecond)
@@ -86,15 +88,44 @@
             }
         }
 
+        /* Has the diver left safety stop depth (descend)? => need to restart safety stop timer? */
+        if(safetyStopCountDown_Second != 0)
+        {
+        	if(stateUsed->lifeData.depth_meter >= (settingsGetPointer()->safetystopDepth + 2.0))
+        	{
+        		safetyStopRestartCnt = safetyStopCountDown_Second;
+        		safetyStopCountDown_Second = 0;
+        		safetyStopResetCnt = 60;			/* restart safety stop from scratch if depth is left for more than one minute */
+        	}
+        }
+        else if(safetyStopResetCnt)
+        {
+        	safetyStopResetCnt--;
+        	if(safetyStopResetCnt == 0)
+        	{
+        		safetyStopRestartCnt = 0;
+        	}
+        }
+
         //Countdown starts at 5 meters
         if(bSafetyStop && (stateUsed->lifeData.depth_meter - 0.0001f <= (settingsGetPointer()->safetystopDepth) ))
         {
             if(safetyStopCountDown_Second == 0)
             {
-                safetyStopCountDown_Second = (settingsGetPointer()->safetystopDuration) * 60;
+            	if(safetyStopRestartCnt)		/* just a short interrupt of the safetystop => continue using old count */
+            	{
+            		safetyStopCountDown_Second = safetyStopRestartCnt;
+            		safetyStopRestartCnt = 0;
+            	}
+            	else							/* setup safety stop duration */
+            	{
+            		safetyStopCountDown_Second = (settingsGetPointer()->safetystopDuration) * 60;
+            	}
             }
             else
+            {
                 safetyStopCountDown_Second--;
+            }
         }
 
         // after safetystopDuration minutes or below 3 (2) meter safetyStop is disabled