Kline: do init from initHardware() and stop/start from applyNewHardwareSettings() (#5125)

firmware/hw_layer/hardware.cpp

@@ -261,6 +261,8 @@ void applyNewHardwareSettings() {
 	stopCanPins();
 #endif /* EFI_CAN_SUPPORT */
 
+	stopKLine();
+
 #if EFI_AUX_SERIAL
 	stopAuxSerialPins();
 #endif /* EFI_AUX_SERIAL */
@@ -343,7 +345,7 @@ void applyNewHardwareSettings() {
 	startAuxSerialPins();
 #endif /* EFI_AUX_SERIAL */
 
-    initKLine();
+    startKLine();
 
 
 #if EFI_HIP_9011
@@ -605,6 +607,8 @@ void initHardware() {
 	initSent();
 #endif
 
+	initKLine();
+
 	calcFastAdcIndexes();
 
 	startHardware();

firmware/hw_layer/kline.cpp

@@ -17,15 +17,15 @@ void kLineThread(void*)
         chnReadTimeout(klDriver, &ch, 1, KLINE_READ_TIMEOUT);
         // to begin with just write byte to console
         if (ch != 0) {
-            efiPrintf("kline: %c", ch);
+            efiPrintf("kline: 0x%02x", ch);
             totalBytes++;
         }
     }
 }
 #endif
 
-void initKLine() {
-
+/* currently useless because all settings are hardcoded */
+void startKLine() {
 #ifdef EFI_KLINE
 #if EFI_PROD_CODE
 	efiSetPadMode("K-Line UART RX", KLINE_SERIAL_DEVICE_RX, PAL_MODE_ALTERNATE(TS_SERIAL_AF));
@@ -49,3 +49,19 @@ void initKLine() {
     });
 #endif
 }
+
+/* currently useless because all settings are hardcoded */
+void stopKLine() {
+#ifdef EFI_KLINE
+#if EFI_PROD_CODE
+	efiSetPadUnused(KLINE_SERIAL_DEVICE_RX);
+	efiSetPadUnused(KLINE_SERIAL_DEVICE_TX);
+#endif /* EFI_PROD_CODE */
+#endif
+}
+
+void initKLine() {
+#ifdef EFI_KLINE
+	startKLine();
+#endif
+}

firmware/hw_layer/kline.h

@@ -11,4 +11,8 @@
 #define KLINE_READ_TIMEOUT 50
 
 
-void initKLine();
+void initKLine();
+
+/* Stop/Start for config update */
+void startKLine();
+void stopKLine();