Index: firmware/App/Modes/FPModes/FPOperationModes.h
===================================================================
diff -u -r6545787080956983fed6bd9c2717938c202917ab -r4360891b921388dcc35e7b0362c3e4e246714e36
--- firmware/App/Modes/FPModes/FPOperationModes.h	(.../FPOperationModes.h)	(revision 6545787080956983fed6bd9c2717938c202917ab)
+++ firmware/App/Modes/FPModes/FPOperationModes.h	(.../FPOperationModes.h)	(revision 4360891b921388dcc35e7b0362c3e4e246714e36)
@@ -1,17 +1,17 @@
 /**************************************************************************
 *
-* Copyright (c) 2024-2024 Diality Inc. - All Rights Reserved.
+* Copyright (c) 2025-2026 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    FPOperationModes.h
 *
-* @author  (last)      Sean
-* @date    (last)      15-Nov-2024
+* @author  (last)      Raghu Kallala
+* @date    (last)      06-Apr-2026
 *
-* @author  (original)  Sean
-* @date    (original)  15-Nov-2024
+* @author  (original)  Michael Garthwaite
+* @date    (original)  08-Sep-2025
 *
 ***************************************************************************/
 
@@ -34,29 +34,49 @@
 
 #define NO_FP_SUB_STATE            0xFF        ///< value for when submode does not have specific substates and is not applicable.
 
+#pragma pack(push, 1)
 /// Payload record structure for op mode broadcast message
 typedef struct
 {
     U32 opMode;                             ///< Current operating mode
     U32 subMode;                            ///< Current sub-mode of current operating mode
 } OP_MODE_PAYLOAD_T;
 
+/// Payload structure for FP defeatured status request
+typedef struct
+{
+    BOOL isFPDefeatured;                     ///< FP defeatured status
+} FP_DEF_STATUS_PAYLOAD_T;
+
+/// Payload structure for FP boost pump status request
+typedef struct
+{
+    BOOL isFPBoostPumpInstalled;            ///< FP boost pump installation status
+} FP_BOOST_PUMP_INSTALL_STATUS_PAYLOAD_T;
+#pragma pack(pop)
+
 // ********** public function prototypes **********
 
 void initFPOperationModes( void );                                    // Initialize this unit
-void execFPOperationModes( void );
+void execFPOperationModes( void );                                    // Execute the FP operation mode state machine (scheduled periodic call)
 
 void requestNewFPOperationMode( FP_OP_MODE_T newMode );               // Request a transition to a new operation mode
 FP_OP_MODE_T getCurrentFPOperationMode( void );                       // Get the current operation mode
 FP_OP_MODE_T getPreviousFPOperationMode( void );                      // Get the previous operation mode
 U32  getCurrentFPSubMode( void );                                     // Get the current sub-mode
 BOOL isFPDefeatured( void );                                          // is the Leahi device is defeatured ( TBD pulled from NV mem )
 BOOL isBoostPumpInstalled( void );                                    // is this leahi device installed with a boost pump ( TBD pulled from NV mem )
+REQUEST_REJECT_REASON_CODE_T signalStopGenPermeate( void );           // signal to stop gen permeate request.
+REQUEST_REJECT_REASON_CODE_T signalStartGenPermeate( void );          // signal to start gen permeate request.
 
 void setCurrentFPSubState( U32 subState );                            // Set the current substate.
 void setCurrentFP4thLevelState( U32 state );                          // Set the current 4th level state.
 BOOL testSetFPOperationMode( MESSAGE_T *message );                    // Set operation mode override
 BOOL testSetFPOpModePublishIntervalOverride( MESSAGE_T *message );    // Set operation mode publish interval override
+BOOL testSetGeneratePermeateSignal( MESSAGE_T *message );             // Set start stop generate permeate.
+BOOL testGetFPDefeaturedStatus( MESSAGE_T *message );                 // Send a response message with FP defeatured status payload
+BOOL testGetFPBoostPumpInstallStatus( MESSAGE_T *message );           // Send a response message with FP boost pump installation status payload
+BOOL testSetFPOperationSubMode( MESSAGE_T *message );                 // Set operation sub mode override
 
 /**@}*/