Report 50°C on virtual TMC heater channels for any associated driver being active

Author: wilriker

src/Platform.cpp

@@ -2859,6 +2859,21 @@ void Platform::DisableAllDrives()
 	}
 }
 
+// Check if at least one driver is NOT in state disabled
+bool Platform::IsAnyDriverActive(unsigned int board) const
+{
+	const size_t firstDriver = board * 5;
+	const size_t lastDriver = min<size_t>(firstDriver + 4, DRIVES);
+	for (size_t driver = firstDriver; driver < lastDriver; ++driver)
+	{
+		if (driverState[driver] != DriverStatus::disabled)
+		{
+			return true;
+		}
+	}
+	return false;
+}
+
 // Set drives to idle hold if they are enabled. If a drive is disabled, leave it alone.
 // Must not be called from an ISR, or with interrupts disabled.
 void Platform::SetDriversIdle()
@@ -4173,10 +4188,11 @@ float Platform::GetCurrentPowerVoltage() const
 // TMC driver temperatures
 float Platform::GetTmcDriversTemperature(unsigned int board) const
 {
-	const uint16_t mask = ((1u << 5) - 1) << (5 * board);			// there are 5 driver son each board
+	const uint16_t mask = ((1u << 5) - 1) << (5 * board);			// there are 5 drivers on each board
 	return ((temperatureShutdownDrivers & mask) != 0) ? 150.0
 			: ((temperatureWarningDrivers & mask) != 0) ? 100.0
-				: 0.0;
+				: IsAnyDriverActive(board) ? 50.0
+					: 0.0;
 }
 
 #endif

src/Platform.h

@@ -407,6 +407,7 @@ class Platform
 	void EnableDrive(size_t axisOrExtruder);
 	void DisableDrive(size_t axisOrExtruder);
 	void DisableAllDrives();
+	bool IsAnyDriverActive(unsigned int board) const;
 	void SetDriversIdle();
 	void SetMotorCurrent(size_t axisOrExtruder, float current, int code);
 	float GetMotorCurrent(size_t axisOrExtruder, int code) const;