From 2225937b6345a833849aefa3f9a946d00e210554 Mon Sep 17 00:00:00 2001
From: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Date: Sun, 12 Jan 2025 14:24:02 +0100
Subject: [PATCH] renaulttwizy: Fix deprecated operations on volatile

Extract the duplicated code to a helper method.

Do the flag setting via a local variable to make it explicit when the
volatile variable is accessed.

The sensors state really should use atomics if it may be accessed from
different contexts (threads/interrupts), or otherwise just remove
volatile since it's not doing anything useful.
---
 .../vehicle_renaulttwizy/src/rt_battmon.cpp   | 14 ++++++++
 .../vehicle_renaulttwizy/src/rt_can.cpp       | 33 ++++---------------
 .../src/vehicle_renaulttwizy.h                |  1 +
 3 files changed, 21 insertions(+), 27 deletions(-)

diff --git a/vehicle/OVMS.V3/components/vehicle_renaulttwizy/src/rt_battmon.cpp b/vehicle/OVMS.V3/components/vehicle_renaulttwizy/src/rt_battmon.cpp
index e38d2cbb6..12a8c42ac 100644
--- a/vehicle/OVMS.V3/components/vehicle_renaulttwizy/src/rt_battmon.cpp
+++ b/vehicle/OVMS.V3/components/vehicle_renaulttwizy/src/rt_battmon.cpp
@@ -249,6 +249,20 @@ void OvmsVehicleRenaultTwizy::BatteryUpdate()
 }
 
 
+/**
+ * BatterySetSensorAndUpdate: Set sensor state and update if all done
+ */
+void OvmsVehicleRenaultTwizy::BatterySetSensorAndUpdate(uint8_t flag)
+{
+  uint8_t batt_sensors_state = twizy_batt_sensors_state;
+  batt_sensors_state |= flag;
+  twizy_batt_sensors_state = batt_sensors_state;
+  if ((batt_sensors_state & BATT_SENSORS_READY) >= BATT_SENSORS_GOTALL) {
+    BatteryUpdate();
+  }
+}
+
+
 /**
  * BatteryReset: reset deviations, alerts & watches
  */
diff --git a/vehicle/OVMS.V3/components/vehicle_renaulttwizy/src/rt_can.cpp b/vehicle/OVMS.V3/components/vehicle_renaulttwizy/src/rt_can.cpp
index 8a9a5e575..51f32b9bd 100644
--- a/vehicle/OVMS.V3/components/vehicle_renaulttwizy/src/rt_can.cpp
+++ b/vehicle/OVMS.V3/components/vehicle_renaulttwizy/src/rt_can.cpp
@@ -160,7 +160,6 @@ void OvmsVehicleRenaultTwizy::CanResponder(const CAN_frame_t* p_frame)
   }
 }
 
-
 /**
  * Asynchronous CAN RX handler
  */
@@ -353,12 +352,8 @@ void OvmsVehicleRenaultTwizy::IncomingFrameCan1(CAN_frame_t* p_frame)
             }
           }
         }
-        
-        // detect fetch completion:
-        twizy_batt_sensors_state |= BATT_SENSORS_GOT554;
-        if ((twizy_batt_sensors_state & BATT_SENSORS_READY) >= BATT_SENSORS_GOTALL) {
-          BatteryUpdate();
-        }
+
+        BatterySetSensorAndUpdate(BATT_SENSORS_GOT554);
       }
       break;
     
@@ -409,11 +404,7 @@ void OvmsVehicleRenaultTwizy::IncomingFrameCan1(CAN_frame_t* p_frame)
         twizy_cell[8].volt_new = ((UINT) CAN_NIBL(4) << 8) | ((UINT) CAN_BYTE(5));
         twizy_cell[9].volt_new = ((UINT) CAN_BYTE(6) << 4) | ((UINT) CAN_NIBH(7));
 
-        // detect fetch completion:
-        twizy_batt_sensors_state |= BATT_SENSORS_GOT557;
-        if ((twizy_batt_sensors_state & BATT_SENSORS_READY) >= BATT_SENSORS_GOTALL) {
-          BatteryUpdate();
-        }
+        BatterySetSensorAndUpdate(BATT_SENSORS_GOT557);
       }
       break;
     
@@ -428,11 +419,7 @@ void OvmsVehicleRenaultTwizy::IncomingFrameCan1(CAN_frame_t* p_frame)
         twizy_cell[12].volt_new = ((UINT) CAN_BYTE(3) << 4) | ((UINT) CAN_NIBH(4));
         twizy_cell[13].volt_new = ((UINT) CAN_NIBL(4) << 8) | ((UINT) CAN_BYTE(5));
 
-        // detect fetch completion:
-        twizy_batt_sensors_state |= BATT_SENSORS_GOT55E;
-        if ((twizy_batt_sensors_state & BATT_SENSORS_READY) >= BATT_SENSORS_GOTALL) {
-          BatteryUpdate();
-        }
+        BatterySetSensorAndUpdate(BATT_SENSORS_GOT55E);
       }
       break;
     
@@ -449,11 +436,7 @@ void OvmsVehicleRenaultTwizy::IncomingFrameCan1(CAN_frame_t* p_frame)
         v2 = ((UINT) CAN_NIBL(6) << 8) | ((UINT) CAN_BYTE(7));
         twizy_batt[0].volt_new = (v1 + v2 + 1) >> 1;
 
-        // detect fetch completion:
-        twizy_batt_sensors_state |= BATT_SENSORS_GOT55F;
-        if ((twizy_batt_sensors_state & BATT_SENSORS_READY) >= BATT_SENSORS_GOTALL) {
-          BatteryUpdate();
-        }
+        BatterySetSensorAndUpdate(BATT_SENSORS_GOT55F);
       }
       break;
     
@@ -757,11 +740,7 @@ void OvmsVehicleRenaultTwizy::IncomingFrameCan1(CAN_frame_t* p_frame)
           }
         }
 
-        // detect fetch completion:
-        twizy_batt_sensors_state |= BATT_SENSORS_GOT700;
-        if ((twizy_batt_sensors_state & BATT_SENSORS_READY) >= BATT_SENSORS_GOTALL) {
-          BatteryUpdate();
-        }
+        BatterySetSensorAndUpdate(BATT_SENSORS_GOT700);
       }
       break;
       
diff --git a/vehicle/OVMS.V3/components/vehicle_renaulttwizy/src/vehicle_renaulttwizy.h b/vehicle/OVMS.V3/components/vehicle_renaulttwizy/src/vehicle_renaulttwizy.h
index 8486c0aca..174bac47d 100644
--- a/vehicle/OVMS.V3/components/vehicle_renaulttwizy/src/vehicle_renaulttwizy.h
+++ b/vehicle/OVMS.V3/components/vehicle_renaulttwizy/src/vehicle_renaulttwizy.h
@@ -374,6 +374,7 @@ class OvmsVehicleRenaultTwizy : public OvmsVehicle
     void BatteryUpdate();
     void BatteryReset();
     void BatterySendDataUpdate(bool force = false);
+    void BatterySetSensorAndUpdate(uint8_t flag);
     vehicle_command_t CommandBatt(int verbosity, OvmsWriter* writer, OvmsCommand* cmd, int argc, const char* const* argv);
   
   protected: