rusEFI firmware feature should be honest about it's Windows-only limitation

firmware/CHANGELOG.md

@@ -30,6 +30,7 @@ All notable user-facing or behavior-altering changes will be documented in this
 ### Added
  - Ford PIP trigger decoder https://github.com/rusefi/rusefi/wiki/Images/triggers/trigger_65.png
  - Dwell battery voltage correction table
+ - rusEFI firmware feature should be honest about it's Windows-only limitation
 
 ### Fixed
  - Fix of 36/2/2/2 attributes to help rotary #3242

java_console/shared_io/src/main/java/com/rusefi/rusEFIVersion.java

@@ -6,7 +6,7 @@ import java.net.URL;
 import java.util.concurrent.atomic.AtomicReference;
 
 public class rusEFIVersion {
-    public static final int CONSOLE_VERSION = 20210926;
+    public static final int CONSOLE_VERSION = 20210927;
     public static AtomicReference<String> firmwareVersion = new AtomicReference<>("N/A");
 
     public static long classBuildTimeMillis() {

java_console/ui/src/main/java/com/rusefi/maintenance/DfuFlasher.java

@@ -25,7 +25,7 @@ import static com.rusefi.StartupFrame.appendBundleName;
  * @see FirmwareFlasher
  */
 public class DfuFlasher {
-    public static final String DFU_BINARY = Launcher.TOOLS_PATH + File.separator + "DfuSe/DfuSeCommand.exe";
+    private static final String DFU_BINARY = Launcher.TOOLS_PATH + File.separator + "DfuSe/DfuSeCommand.exe";
     private static final String DFU_SETUP_EXE = "https://github.com/rusefi/rusefi_external_utils/raw/master/DFU_mode/DfuSe_Demo_V3.0.6_Setup.exe";
 
     public static void doAutoDfu(Object selectedItem, JComponent parent) {
@@ -70,6 +70,11 @@ public class DfuFlasher {
         wnd.showFrame(appendBundleName("DFU status " + Launcher.CONSOLE_VERSION));
         wnd.appendMsg(messages.toString());
         if (isSignatureValidated.get()) {
+            if (!ProgramSelector.IS_WIN) {
+                wnd.appendMsg("Switched to DFU mode!");
+                wnd.appendMsg("rusEFI console can only program on Windows");
+                return;
+            }
             ExecHelper.submitAction(() -> executeDFU(wnd), DfuFlasher.class + " thread");
         } else {
             wnd.appendMsg("Please use manual DFU to change bundle type.");

java_console/ui/src/main/java/com/rusefi/maintenance/ProgramSelector.java

@@ -16,6 +16,7 @@ public class ProgramSelector {
     private static final String AUTO_DFU = "Auto DFU";
     private static final String MANUAL_DFU = "Manual DFU";
     private static final String ST_LINK = "ST-LINK";
+    public static final boolean IS_WIN = System.getProperty("os.name").toLowerCase().contains("win");
 
     private static final String HELP = "https://github.com/rusefi/rusefi/wiki/HOWTO-Update-Firmware";
 
@@ -27,8 +28,10 @@ public class ProgramSelector {
          * todo: add FULL AUTO mode which would fire up DFU and ST-LINK in parallel hoping that one of those would work?
          */
         mode.addItem(AUTO_DFU);
-        mode.addItem(MANUAL_DFU);
+        if (IS_WIN) {
-        mode.addItem(ST_LINK);
+            mode.addItem(MANUAL_DFU);
+            mode.addItem(ST_LINK);
+        }
 
         controls.add(mode);
 
@@ -56,7 +59,7 @@ public class ProgramSelector {
 
                 if (isAutoDfu) {
                     DfuFlasher.doAutoDfu(comboPorts.getSelectedItem(), comboPorts);
-                } else if (isManualDfu){
+                } else if (isManualDfu) {
                     DfuFlasher.runDfuProgramming();
                 } else {
                     FirmwareFlasher.doUpdateFirmware(FirmwareFlasher.IMAGE_FILE, updateFirmware);