Share display params with CS.

iso15118/secc/controller/interface.py

@@ -1056,3 +1056,10 @@ async def session_ended(self, current_state: str, reason: str):
         Indicate the reason for stopping charging.
         """
         raise NotImplementedError
+
+    @abstractmethod
+    async def send_display_params(self):
+        """
+        Share display params with CS.
+        """
+        raise NotImplementedError

iso15118/secc/controller/simulator.py

@@ -1090,3 +1090,9 @@ async def session_ended(self, current_state: str, reason: str):
         @param last_message: The last message that was either sent/received.
         """
         logger.info(f"Session ended in {current_state} ({reason}).")
+
+    async def send_display_params(self):
+        """
+        Share display params with CS.
+        """
+        pass

iso15118/secc/states/din_spec_states.py

@@ -840,7 +840,7 @@ async def process_message(
                 await self.comm_session.evse_controller.get_evse_max_power_limit()
             ),
         )
-
+        await self.comm_session.evse_controller.send_display_params()
         self.create_next_message(
             None,
             current_demand_res,

iso15118/secc/states/iso15118_20_states.py

@@ -1473,7 +1473,7 @@ async def process_message(
             ),
             meter_info=meter_info,
         )
-
+        await self.comm_session.evse_controller.send_display_params()
         self.create_next_message(
             None,
             ac_charge_loop_res,
@@ -1798,7 +1798,7 @@ async def process_message(
                 ResponseCode.FAILED,
             )
             return
-
+        await self.comm_session.evse_controller.send_display_params()
         dc_charge_loop_res = await self._build_dc_charge_loop_res(
             dc_charge_loop_req.meter_info_requested
         )

iso15118/secc/states/iso15118_2_states.py

@@ -2444,6 +2444,8 @@ async def process_message(
             )
             return
 
+        await self.comm_session.evse_controller.send_display_params()
+
         # We don't care about signed meter values from the EVCC, but if you
         # do, then set receipt_required to True and set the field meter_info
         evse_controller = self.comm_session.evse_controller

tests/shared/messages/test_interface.py

@@ -140,6 +140,9 @@ def ready_to_charge(self):
     async def session_ended(self, _):
         pass
 
+    async def send_display_params(self):
+        pass
+
 
 @pytest.fixture
 def evse_controller_interface():