# HG changeset patch
# User Ideenmodellierer
# Date 1700163395 -3600
# Node ID da632300e7d42a6d88c943447286d899c9bb1854
# Parent  b7d93ff6b3b2ddbecde7a9e57a49eb9e261feac9
Activated work gas for (p)scr mode:
In previous version setting of change depth for work (travel) gases was not possible. For (p)scr operation this is not possible. Work gases will not be considered for deco calculation. In addition the first gas will be handled as "deco" gas. This allows switching back to the first gas in case the current gas becomes no longer breathable (ppo2 low).

diff -r b7d93ff6b3b2 -r da632300e7d4 Discovery/Src/check_warning.c
--- a/Discovery/Src/check_warning.c	Thu Nov 16 20:32:09 2023 +0100
+++ b/Discovery/Src/check_warning.c	Thu Nov 16 20:36:35 2023 +0100
@@ -220,9 +220,10 @@
 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) {
@@ -233,12 +234,19 @@
 
 	/* life data is float, gas data is uint8 */
     if (actualLeftMaxDepth(diveState)) { /* deco gases */
-        for (int i=1+gasIdOffset; i<= 5+gasIdOffset; i++) {
-            if ((diveSettings.gas[i].note.ub.active)
-                && (diveSettings.gas[i].note.ub.deco)
-                && (diveSettings.gas[i].depth_meter)
-                && (diveSettings.gas[i].depth_meter >= (diveState->lifeData.depth_meter - 0.01f ))
-                && (diveSettings.gas[i].depth_meter <= bestGasDepth)) {
+        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 - 0.01f ))
+                && (localGas.depth_meter <= bestGasDepth)) {
                 betterGasIdLocal = i;
                 bestGasDepth = diveSettings.gas[i].depth_meter;
             }
@@ -246,7 +254,7 @@
     } else { /* travel gases */
         bestGasDepth = 0;
         //check for travalgas
-        for (int i = 1 + gasIdOffset; i <= 5 + gasIdOffset; i++) {
+        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)
@@ -257,6 +265,18 @@
             }
         }
     }
+    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;
 }
@@ -558,7 +578,7 @@
 #ifdef ENABLE_CO2_SUPPORT
 static int8_t check_co2(SDiveState * pDiveState)
 {
-	if(pDiveState->mode != MODE_DIVE)
+	if((pDiveState->mode != MODE_DIVE) || (settingsGetPointer()->co2_sensor_active == 0))
 	{
 		pDiveState->warnings.co2High = 0;
 	}
diff -r b7d93ff6b3b2 -r da632300e7d4 Discovery/Src/data_exchange_main.c
--- a/Discovery/Src/data_exchange_main.c	Thu Nov 16 20:32:09 2023 +0100
+++ b/Discovery/Src/data_exchange_main.c	Thu Nov 16 20:36:35 2023 +0100
@@ -1159,7 +1159,7 @@
 		pStateReal->sensorErrorsRTE = dataIn.sensorErrors;
 
 		/* data from CO2 sensor */
-		pStateReal->lifeData.CO2_data.CO2_ppm = dataIn.data[(dataIn.boolADCO2Data && DATA_BUFFER_CO2)].CO2_ppm * 10;	/* Scale factor depends on sensor */
+		pStateReal->lifeData.CO2_data.CO2_ppm = dataIn.data[(dataIn.boolADCO2Data && DATA_BUFFER_CO2)].CO2_ppm;
 		pStateReal->lifeData.CO2_data.signalStrength = dataIn.data[(dataIn.boolADCO2Data && DATA_BUFFER_CO2)].CO2_signalStrength;
 
 #ifdef ENABLE_EXTERNAL_PRESSURE