content: 
  package com.android.server.wifi;
  
  import android.annotation.NonNull;
  
  import java.io.FileDescriptor;
  import java.io.PrintWriter;
  
  /**
   *
   */
  public class BaseWifiDiagnostics {
      public static final byte CONNECTION_EVENT_STARTED = 0;
      public static final byte CONNECTION_EVENT_SUCCEEDED = 1;
      public static final byte CONNECTION_EVENT_FAILED = 2;
      public static final byte CONNECTION_EVENT_TIMEOUT = 3;
  
      protected final WifiNative mWifiNative;
  
      protected String mFirmwareVersion;
      protected String mDriverVersion;
      protected int mSupportedFeatureSet;
  
      public BaseWifiDiagnostics(WifiNative wifiNative) {
          mWifiNative = wifiNative;
      }
  
      /**
       * start wifi HAL dependent logging features
       * @param ifaceName requesting to start logging
       */
      public synchronized void startLogging(@NonNull String ifaceName) {
          mFirmwareVersion = mWifiNative.getFirmwareVersion();
          mDriverVersion = mWifiNative.getDriverVersion();
          mSupportedFeatureSet = mWifiNative.getSupportedLoggerFeatureSet();
      }
  
      public synchronized void startPacketLog() { }
  
      public synchronized void stopPacketLog() { }
  
      /**
       * stop wifi HAL dependent logging features
       * @param ifaceName requesting to stop logging
       */
      public synchronized void stopLogging(@NonNull String ifaceName) { }
  
      /**
       * Inform the diagnostics module of a connection event.
       * @param event The type of connection event (see CONNECTION_EVENT_* constants)
       */
      public synchronized void reportConnectionEvent(byte event) {}
  
      public synchronized void captureBugReportData(int reason) { }
  
      public synchronized void captureAlertData(int errorCode, byte[] alertData) { }
  
      public synchronized void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
          dump(pw);
          pw.println("*** logging disabled, no debug data ****");
      }
  
      /**
       * Starts taking a standard android bugreport
       * android will prompt the user to send the bugreport when it's complete
       * @param bugTitle Title of bugreport to generate
       * @param bugDetail Description of the bugreport to generate
       */
      public void takeBugReport(String bugTitle, String bugDetail) { }
  
      protected synchronized void dump(PrintWriter pw) {
          pw.println("Chipset information :-----------------------------------------------");
          pw.println("FW Version is: " + mFirmwareVersion);
          pw.println("Driver Version is: " + mDriverVersion);
          pw.println("Supported Feature set: " + mSupportedFeatureSet);
      }
  
      /** enables/disables wifi verbose logging */
      public synchronized void enableVerboseLogging(boolean verboseEnabled) { }
  
      /** enables packet fate monitoring */
      public void startPktFateMonitoring(@NonNull String ifaceName) {}
  
  }
  