Index: firmware/App/Modes/ModeChemicalDisinfect.h
===================================================================
diff -u -rcc398b14ccf518f350b57fb5cb8728e5c908bd1e -r7d4711edd7b40cd3e29f43e766f79a8a09586fe9
--- firmware/App/Modes/ModeChemicalDisinfect.h	(.../ModeChemicalDisinfect.h)	(revision cc398b14ccf518f350b57fb5cb8728e5c908bd1e)
+++ firmware/App/Modes/ModeChemicalDisinfect.h	(.../ModeChemicalDisinfect.h)	(revision 7d4711edd7b40cd3e29f43e766f79a8a09586fe9)
@@ -1,17 +1,17 @@
 /**************************************************************************
 *
-* Copyright (c) 2019-2020 Diality Inc. - All Rights Reserved.
+* Copyright (c) 2020-2024 Diality Inc. - All Rights Reserved.
 *
 * THIS CODE MAY NOT BE COPIED OR REPRODUCED IN ANY FORM, IN PART OR IN
 * WHOLE, WITHOUT THE EXPLICIT PERMISSION OF THE COPYRIGHT OWNER.
 *
-* @file ModeChemicalDisinfect.h
+* @file    ModeChemicalDisinfect.h
 *
-* @author (last) Sean Nash
-* @date (last) 29-May-2020
+* @author  (last)      Michael Garthwaite
+* @date    (last)      11-Sep-2023
 *
-* @author (original) Sean
-* @date (original) 04-Apr-2020
+* @author  (original)  Sean
+* @date    (original)  04-Apr-2020
 *
 ***************************************************************************/
 
@@ -31,14 +31,29 @@
 
 // ********** public definitions **********
 
+/// Chemical disinfect UI data
+typedef struct
+{
+    U32 chemDisinfectTargetTime;           ///< Target time during chemical disinfect.
+    U32 chemDisinfectCountdownTime;        ///< Chemical disinfect count down time.
+} MODE_CHEMICAL_DISINFECT_UI_DATA_T;
+
 // ********** public function prototypes **********
 
 void initChemicalDisinfectMode( void );           // initialize this module
-void transitionToChemicalDisinfectMode( void );   // prepares for transition to chemical disinfection mode
+U32 transitionToChemicalDisinfectMode( void );   // prepares for transition to chemical disinfection mode
 U32  execChemicalDisinfectMode( void );           // execute the chemical disinfection mode state machine (call from OperationModes)
 
 DG_CHEM_DISINFECT_STATE_T getCurrentChemicalDisinfectState( void );  // get the current state of the chemical disinfection mode.
 
+BOOL stopChemicalDisinfect( void );
+BOOL testSetChemDisinfectionCD2AvgOverride( F32 value );
+BOOL testResetChemDisinfectionCD2AvgOverride( void );
+
+#ifndef _RELEASE_
+void setChemNelsonSupportMode( NELSON_SUPPORT_T support );
+#endif
+
 /**@}*/
 
 #endif