Merge changes I8d835c08,I4620691a

* changes:
  Add dump commmand for Wifi Wake.
  Connect WakeupLock and WakeupController to the config store data.
diff --git a/service/java/com/android/server/wifi/FrameworkFacade.java b/service/java/com/android/server/wifi/FrameworkFacade.java
index 2c16444..31124d5 100644
--- a/service/java/com/android/server/wifi/FrameworkFacade.java
+++ b/service/java/com/android/server/wifi/FrameworkFacade.java
@@ -79,6 +79,17 @@
                 contentObserver);
     }
 
+    /**
+     * Helper method for classes to unregister a ContentObserver
+     * {@see ContentResolver#unregisterContentObserver(ContentObserver)}.
+     *
+     * @param context
+     * @param contentObserver
+     */
+    public void unregisterContentObserver(Context context, ContentObserver contentObserver) {
+        context.getContentResolver().unregisterContentObserver(contentObserver);
+    }
+
     public IBinder getService(String serviceName) {
         return ServiceManager.getService(serviceName);
     }
diff --git a/service/java/com/android/server/wifi/SavedNetworkEvaluator.java b/service/java/com/android/server/wifi/SavedNetworkEvaluator.java
index 59d4ab2..97f6b6f 100644
--- a/service/java/com/android/server/wifi/SavedNetworkEvaluator.java
+++ b/service/java/com/android/server/wifi/SavedNetworkEvaluator.java
@@ -25,8 +25,6 @@
 import com.android.internal.R;
 import com.android.server.wifi.util.TelephonyUtil;
 
-import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.List;
 
 /**
@@ -242,96 +240,83 @@
 
         for (ScanDetail scanDetail : scanDetails) {
             ScanResult scanResult = scanDetail.getScanResult();
-            int highestScoreOfScanResult = Integer.MIN_VALUE;
-            int candidateIdOfScanResult = WifiConfiguration.INVALID_NETWORK_ID;
 
             // One ScanResult can be associated with more than one networks, hence we calculate all
             // the scores and use the highest one as the ScanResult's score.
-            List<WifiConfiguration> associatedConfigurations = null;
-            WifiConfiguration associatedConfiguration =
+            WifiConfiguration network =
                     mWifiConfigManager.getConfiguredNetworkForScanDetailAndCache(scanDetail);
 
-            if (associatedConfiguration == null) {
+            if (network == null) {
                 continue;
-            } else {
-                associatedConfigurations =
-                    new ArrayList<>(Arrays.asList(associatedConfiguration));
             }
 
-            for (WifiConfiguration network : associatedConfigurations) {
-                /**
-                 * Ignore Passpoint and Ephemeral networks. They are configured networks,
-                 * but without being persisted to the storage. They are evaluated by
-                 * {@link PasspointNetworkEvaluator} and {@link ScoredNetworkEvaluator}
-                 * respectively.
-                 */
-                if (network.isPasspoint() || network.isEphemeral()) {
-                    continue;
-                }
+            /**
+             * Ignore Passpoint and Ephemeral networks. They are configured networks,
+             * but without being persisted to the storage. They are evaluated by
+             * {@link PasspointNetworkEvaluator} and {@link ScoredNetworkEvaluator}
+             * respectively.
+             */
+            if (network.isPasspoint() || network.isEphemeral()) {
+                continue;
+            }
 
-                WifiConfiguration.NetworkSelectionStatus status =
-                        network.getNetworkSelectionStatus();
-                status.setSeenInLastQualifiedNetworkSelection(true);
+            WifiConfiguration.NetworkSelectionStatus status =
+                    network.getNetworkSelectionStatus();
+            status.setSeenInLastQualifiedNetworkSelection(true);
 
-                if (!status.isNetworkEnabled()) {
-                    continue;
-                } else if (network.BSSID != null &&  !network.BSSID.equals("any")
-                        && !network.BSSID.equals(scanResult.BSSID)) {
-                    // App has specified the only BSSID to connect for this
-                    // configuration. So only the matching ScanResult can be a candidate.
-                    localLog("Network " + WifiNetworkSelector.toNetworkString(network)
-                            + " has specified BSSID " + network.BSSID + ". Skip "
-                            + scanResult.BSSID);
-                    continue;
-                } else if (TelephonyUtil.isSimConfig(network)
-                        && !mWifiConfigManager.isSimPresent()) {
-                    // Don't select if security type is EAP SIM/AKA/AKA' when SIM is not present.
-                    continue;
-                }
+            if (!status.isNetworkEnabled()) {
+                continue;
+            } else if (network.BSSID != null &&  !network.BSSID.equals("any")
+                    && !network.BSSID.equals(scanResult.BSSID)) {
+                // App has specified the only BSSID to connect for this
+                // configuration. So only the matching ScanResult can be a candidate.
+                localLog("Network " + WifiNetworkSelector.toNetworkString(network)
+                        + " has specified BSSID " + network.BSSID + ". Skip "
+                        + scanResult.BSSID);
+                continue;
+            } else if (TelephonyUtil.isSimConfig(network)
+                    && !mWifiConfigManager.isSimPresent()) {
+                // Don't select if security type is EAP SIM/AKA/AKA' when SIM is not present.
+                continue;
+            }
 
-                int score = calculateBssidScore(scanResult, network, currentNetwork, currentBssid,
-                        scoreHistory);
+            int score = calculateBssidScore(scanResult, network, currentNetwork, currentBssid,
+                    scoreHistory);
 
-                // Set candidate ScanResult for all saved networks to ensure that users can
-                // override network selection. See WifiNetworkSelector#setUserConnectChoice.
-                // TODO(b/36067705): consider alternative designs to push filtering/selecting of
-                // user connect choice networks to RecommendedNetworkEvaluator.
-                if (score > status.getCandidateScore() || (score == status.getCandidateScore()
-                        && status.getCandidate() != null
-                        && scanResult.level > status.getCandidate().level)) {
-                    mWifiConfigManager.setNetworkCandidateScanResult(
-                            network.networkId, scanResult, score);
-                }
+            // Set candidate ScanResult for all saved networks to ensure that users can
+            // override network selection. See WifiNetworkSelector#setUserConnectChoice.
+            // TODO(b/36067705): consider alternative designs to push filtering/selecting of
+            // user connect choice networks to RecommendedNetworkEvaluator.
+            if (score > status.getCandidateScore() || (score == status.getCandidateScore()
+                    && status.getCandidate() != null
+                    && scanResult.level > status.getCandidate().level)) {
+                mWifiConfigManager.setNetworkCandidateScanResult(
+                        network.networkId, scanResult, score);
+            }
 
-                // If the network is marked to use external scores, or is an open network with
-                // curate saved open networks enabled, do not consider it for network selection.
-                if (network.useExternalScores) {
-                    localLog("Network " + WifiNetworkSelector.toNetworkString(network)
-                            + " has external score.");
-                    continue;
-                }
-
-                if (score > highestScoreOfScanResult) {
-                    highestScoreOfScanResult = score;
-                    candidateIdOfScanResult = network.networkId;
-                }
+            // If the network is marked to use external scores, or is an open network with
+            // curate saved open networks enabled, do not consider it for network selection.
+            if (network.useExternalScores) {
+                localLog("Network " + WifiNetworkSelector.toNetworkString(network)
+                        + " has external score.");
+                continue;
             }
 
             if (connectableNetworks != null) {
                 connectableNetworks.add(Pair.create(scanDetail,
-                        mWifiConfigManager.getConfiguredNetwork(candidateIdOfScanResult)));
+                        mWifiConfigManager.getConfiguredNetwork(network.networkId)));
             }
 
-            if (highestScoreOfScanResult > highestScore
-                    || (highestScoreOfScanResult == highestScore
+            if (score > highestScore
+                    || (score == highestScore
                     && scanResultCandidate != null
                     && scanResult.level > scanResultCandidate.level)) {
-                highestScore = highestScoreOfScanResult;
+                highestScore = score;
                 scanResultCandidate = scanResult;
                 mWifiConfigManager.setNetworkCandidateScanResult(
-                        candidateIdOfScanResult, scanResultCandidate, highestScore);
+                        network.networkId, scanResultCandidate, highestScore);
                 // Reload the network config with the updated info.
-                candidate = mWifiConfigManager.getConfiguredNetwork(candidateIdOfScanResult);
+                candidate = mWifiConfigManager.getConfiguredNetwork(network.networkId);
             }
         }
 
diff --git a/service/java/com/android/server/wifi/SoftApManager.java b/service/java/com/android/server/wifi/SoftApManager.java
index 429e3c3..2200618 100644
--- a/service/java/com/android/server/wifi/SoftApManager.java
+++ b/service/java/com/android/server/wifi/SoftApManager.java
@@ -23,21 +23,27 @@
 import android.annotation.NonNull;
 import android.content.Context;
 import android.content.Intent;
+import android.database.ContentObserver;
 import android.net.InterfaceConfiguration;
 import android.net.wifi.IApInterface;
 import android.net.wifi.WifiConfiguration;
 import android.net.wifi.WifiManager;
+import android.os.Handler;
 import android.os.INetworkManagementService;
 import android.os.Looper;
 import android.os.Message;
 import android.os.RemoteException;
+import android.os.SystemClock;
 import android.os.UserHandle;
+import android.provider.Settings;
 import android.text.TextUtils;
 import android.util.Log;
 
+import com.android.internal.R;
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.util.State;
 import com.android.internal.util.StateMachine;
+import com.android.internal.util.WakeupMessage;
 import com.android.server.net.BaseNetworkObserver;
 import com.android.server.wifi.WifiNative.SoftApListener;
 import com.android.server.wifi.util.ApConfigUtil;
@@ -51,8 +57,15 @@
 public class SoftApManager implements ActiveModeManager {
     private static final String TAG = "SoftApManager";
 
-    private final Context mContext;
+    // Minimum limit to use for timeout delay if the value from overlay setting is too small.
+    private static final int MIN_SOFT_AP_TIMEOUT_DELAY_MS = 600_000;  // 10 minutes
 
+    @VisibleForTesting
+    public static final String SOFT_AP_SEND_MESSAGE_TIMEOUT_TAG = TAG
+            + " Soft AP Send Message Timeout";
+
+    private final Context mContext;
+    private final FrameworkFacade mFrameworkFacade;
     private final WifiNative mWifiNative;
 
     private final String mCountryCode;
@@ -72,8 +85,9 @@
     private final int mMode;
     private WifiConfiguration mApConfig;
 
-    private int mNumAssociatedStations = 0;
-
+    /**
+     * Listener for soft AP events.
+     */
     private final SoftApListener mSoftApListener = new SoftApListener() {
         @Override
         public void onNumAssociatedStationsChanged(int numStations) {
@@ -82,7 +96,6 @@
         }
     };
 
-
     /**
      * Listener for soft AP state changes.
      */
@@ -97,6 +110,7 @@
 
     public SoftApManager(Context context,
                          Looper looper,
+                         FrameworkFacade framework,
                          WifiNative wifiNative,
                          String countryCode,
                          Listener listener,
@@ -106,9 +120,8 @@
                          WifiApConfigStore wifiApConfigStore,
                          @NonNull SoftApModeConfiguration apConfig,
                          WifiMetrics wifiMetrics) {
-        mStateMachine = new SoftApStateMachine(looper);
-
         mContext = context;
+        mFrameworkFacade = framework;
         mWifiNative = wifiNative;
         mCountryCode = countryCode;
         mListener = listener;
@@ -124,6 +137,7 @@
             mApConfig = config;
         }
         mWifiMetrics = wifiMetrics;
+        mStateMachine = new SoftApStateMachine(looper);
     }
 
     /**
@@ -141,29 +155,6 @@
     }
 
     /**
-     * Get number of stations associated with this soft AP
-     */
-    @VisibleForTesting
-    public int getNumAssociatedStations() {
-        return mNumAssociatedStations;
-    }
-
-    /**
-     * Set number of stations associated with this soft AP
-     * @param numStations Number of connected stations
-     */
-    private void setNumAssociatedStations(int numStations) {
-        if (mNumAssociatedStations == numStations) {
-            return;
-        }
-        mNumAssociatedStations = numStations;
-        Log.d(TAG, "Number of associated stations changed: " + mNumAssociatedStations);
-
-        // TODO:(b/63906412) send it up to settings.
-        mWifiMetrics.addSoftApNumAssociatedStationsChangedEvent(mNumAssociatedStations, mMode);
-    }
-
-    /**
      * Update AP state.
      * @param newState new AP state
      * @param currentState current AP state
@@ -253,6 +244,8 @@
         public static final int CMD_WIFICOND_BINDER_DEATH = 2;
         public static final int CMD_INTERFACE_STATUS_CHANGED = 3;
         public static final int CMD_NUM_ASSOCIATED_STATIONS_CHANGED = 4;
+        public static final int CMD_NO_ASSOCIATED_STATIONS_TIMEOUT = 5;
+        public static final int CMD_TIMEOUT_TOGGLE_CHANGED = 6;
 
         private final State mIdleState = new IdleState();
         private final State mStartedState = new StartedState();
@@ -313,7 +306,6 @@
                         }
                         updateApState(WifiManager.WIFI_AP_STATE_ENABLING,
                                 WifiManager.WIFI_AP_STATE_DISABLED, 0);
-                        setNumAssociatedStations(0);
                         if (!mWifiNative.registerWificondDeathHandler(mWificondDeathRecipient)) {
                             updateApState(WifiManager.WIFI_AP_STATE_FAILED,
                                     WifiManager.WIFI_AP_STATE_ENABLING,
@@ -375,6 +367,92 @@
         private class StartedState extends State {
             private boolean mIfaceIsUp;
 
+            private int mNumAssociatedStations;
+
+            private boolean mTimeoutEnabled;
+            private int mTimeoutDelay;
+            private WakeupMessage mSoftApTimeoutMessage;
+            private SoftApTimeoutEnabledSettingObserver mSettingObserver;
+
+            /**
+            * Observer for timeout settings changes.
+            */
+            private class SoftApTimeoutEnabledSettingObserver extends ContentObserver {
+                SoftApTimeoutEnabledSettingObserver(Handler handler) {
+                    super(handler);
+                }
+
+                public void register() {
+                    mFrameworkFacade.registerContentObserver(mContext,
+                            Settings.Global.getUriFor(Settings.Global.SOFT_AP_TIMEOUT_ENABLED),
+                            true, this);
+                    mTimeoutEnabled = getValue();
+                }
+
+                public void unregister() {
+                    mFrameworkFacade.unregisterContentObserver(mContext, this);
+                }
+
+                @Override
+                public void onChange(boolean selfChange) {
+                    super.onChange(selfChange);
+                    mStateMachine.sendMessage(SoftApStateMachine.CMD_TIMEOUT_TOGGLE_CHANGED,
+                            getValue() ? 1 : 0);
+                }
+
+                private boolean getValue() {
+                    boolean enabled = mFrameworkFacade.getIntegerSetting(mContext,
+                            Settings.Global.SOFT_AP_TIMEOUT_ENABLED, 1) == 1;
+                    return enabled;
+                }
+            }
+
+            private int getConfigSoftApTimeoutDelay() {
+                int delay = mContext.getResources().getInteger(
+                        R.integer.config_wifi_framework_soft_ap_timeout_delay);
+                if (delay < MIN_SOFT_AP_TIMEOUT_DELAY_MS) {
+                    delay = MIN_SOFT_AP_TIMEOUT_DELAY_MS;
+                    Log.w(TAG, "Overriding timeout delay with minimum limit value");
+                }
+                Log.d(TAG, "Timeout delay: " + delay);
+                return delay;
+            }
+
+            private void scheduleTimeoutMessage() {
+                if (!mTimeoutEnabled) {
+                    return;
+                }
+                mSoftApTimeoutMessage.schedule(SystemClock.elapsedRealtime() + mTimeoutDelay);
+                Log.d(TAG, "Timeout message scheduled");
+            }
+
+            private void cancelTimeoutMessage() {
+                mSoftApTimeoutMessage.cancel();
+                Log.d(TAG, "Timeout message canceled");
+            }
+
+            /**
+             * Set number of stations associated with this soft AP
+             * @param numStations Number of connected stations
+             */
+            private void setNumAssociatedStations(int numStations) {
+                if (mNumAssociatedStations == numStations) {
+                    return;
+                }
+                mNumAssociatedStations = numStations;
+                Log.d(TAG, "Number of associated stations changed: " + mNumAssociatedStations);
+
+                // TODO:(b/63906412) send it up to settings.
+                mWifiMetrics.addSoftApNumAssociatedStationsChangedEvent(mNumAssociatedStations,
+                        mMode);
+
+                if (mNumAssociatedStations == 0) {
+                    scheduleTimeoutMessage();
+                } else {
+                    cancelTimeoutMessage();
+                }
+            }
+
             private void onUpChanged(boolean isUp) {
                 if (isUp == mIfaceIsUp) {
                     return;  // no change
@@ -388,9 +466,7 @@
                 } else {
                     // TODO: handle the case where the interface was up, but goes down
                 }
-
                 mWifiMetrics.addSoftApUpChangedEvent(isUp, mMode);
-                setNumAssociatedStations(0);
             }
 
             @Override
@@ -404,6 +480,30 @@
                 if (config != null) {
                     onUpChanged(config.isUp());
                 }
+
+                mTimeoutDelay = getConfigSoftApTimeoutDelay();
+                Handler handler = mStateMachine.getHandler();
+                mSoftApTimeoutMessage = new WakeupMessage(mContext, handler,
+                        SOFT_AP_SEND_MESSAGE_TIMEOUT_TAG,
+                        SoftApStateMachine.CMD_NO_ASSOCIATED_STATIONS_TIMEOUT);
+                mSettingObserver = new SoftApTimeoutEnabledSettingObserver(handler);
+
+                if (mSettingObserver != null) {
+                    mSettingObserver.register();
+                }
+                Log.d(TAG, "Resetting num stations on start");
+                mNumAssociatedStations = 0;
+                scheduleTimeoutMessage();
+            }
+
+            @Override
+            public void exit() {
+                if (mSettingObserver != null) {
+                    mSettingObserver.unregister();
+                }
+                Log.d(TAG, "Resetting num stations on stop");
+                mNumAssociatedStations = 0;
+                cancelTimeoutMessage();
             }
 
             @Override
@@ -414,8 +514,22 @@
                             Log.e(TAG, "Invalid number of associated stations: " + message.arg1);
                             break;
                         }
+                        Log.d(TAG, "Setting num stations on CMD_NUM_ASSOCIATED_STATIONS_CHANGED");
                         setNumAssociatedStations(message.arg1);
                         break;
+                    case CMD_TIMEOUT_TOGGLE_CHANGED:
+                        boolean isEnabled = (message.arg1 == 1);
+                        if (mTimeoutEnabled == isEnabled) {
+                            break;
+                        }
+                        mTimeoutEnabled = isEnabled;
+                        if (!mTimeoutEnabled) {
+                            cancelTimeoutMessage();
+                        }
+                        if (mTimeoutEnabled && mNumAssociatedStations == 0) {
+                            scheduleTimeoutMessage();
+                        }
+                        break;
                     case CMD_INTERFACE_STATUS_CHANGED:
                         if (message.obj != mNetworkObserver) {
                             // This is from some time before the most recent configuration.
@@ -427,11 +541,21 @@
                     case CMD_START:
                         // Already started, ignore this command.
                         break;
+                    case CMD_NO_ASSOCIATED_STATIONS_TIMEOUT:
+                        if (!mTimeoutEnabled) {
+                            Log.wtf(TAG, "Timeout message received while timeout is disabled."
+                                    + " Dropping.");
+                            break;
+                        }
+                        if (mNumAssociatedStations != 0) {
+                            Log.wtf(TAG, "Timeout message received but has clients. Dropping.");
+                            break;
+                        }
+                        Log.i(TAG, "Timeout message received. Stopping soft AP.");
                     case CMD_WIFICOND_BINDER_DEATH:
                     case CMD_STOP:
                         updateApState(WifiManager.WIFI_AP_STATE_DISABLING,
                                 WifiManager.WIFI_AP_STATE_ENABLED, 0);
-                        setNumAssociatedStations(0);
                         stopSoftAp();
                         if (message.what == CMD_WIFICOND_BINDER_DEATH) {
                             updateApState(WifiManager.WIFI_AP_STATE_FAILED,
diff --git a/service/java/com/android/server/wifi/WifiInjector.java b/service/java/com/android/server/wifi/WifiInjector.java
index cb476c0..dc48163 100644
--- a/service/java/com/android/server/wifi/WifiInjector.java
+++ b/service/java/com/android/server/wifi/WifiInjector.java
@@ -381,10 +381,9 @@
                                            @NonNull IApInterface apInterface,
                                            @NonNull String ifaceName,
                                            @NonNull SoftApModeConfiguration config) {
-        return new SoftApManager(mContext, mWifiServiceHandlerThread.getLooper(),
-                                 mWifiNative, mCountryCode.getCountryCode(),
-                                 listener, apInterface, ifaceName, nmService,
-                                 mWifiApConfigStore, config, mWifiMetrics);
+        return new SoftApManager(mContext, mWifiStateMachineHandlerThread.getLooper(),
+                mFrameworkFacade, mWifiNative, mCountryCode.getCountryCode(), listener, apInterface,
+                ifaceName, nmService, mWifiApConfigStore, config, mWifiMetrics);
     }
 
     /**
diff --git a/service/java/com/android/server/wifi/WifiNative.java b/service/java/com/android/server/wifi/WifiNative.java
index 2f1b550..3118761 100644
--- a/service/java/com/android/server/wifi/WifiNative.java
+++ b/service/java/com/android/server/wifi/WifiNative.java
@@ -152,6 +152,105 @@
         }
     }
 
+    /**
+     * TODO(b/69426063): NEW API Surface for interface management. This will eventually
+     * deprecate the other interface management API's above. But, for now there will be
+     * some duplication to ease transition.
+     */
+    /**
+     * Initialize the native modules.
+     *
+     * @return true on success, false otherwise.
+     */
+    public boolean initialize() {
+        return false;
+    }
+
+    /**
+     * Callback to notify when the status of one of the native daemons
+     * (wificond, wpa_supplicant & vendor HAL) changes.
+     */
+    public interface StatusListener {
+        /**
+         * @param allReady Indicates if all the native daemons are ready for operation or not.
+         */
+        void onStatusChanged(boolean allReady);
+    }
+
+    /**
+     * Register a StatusListener to get notified about any status changes from the native daemons.
+     *
+     * It is safe to re-register the same callback object - duplicates are detected and only a
+     * single copy kept.
+     *
+     * @param listener StatusListener listener object.
+     */
+    public void registerStatusListener(@NonNull StatusListener listener) {
+    }
+
+    /**
+     * Callback to notify when the associated interface is destroyed, up or down.
+     */
+    public interface InterfaceCallback {
+        /**
+         * Interface destroyed by HalDeviceManager.
+         *
+         * @param ifaceName Name of the iface.
+         */
+        void onDestroyed(String ifaceName);
+
+        /**
+         * Interface is up.
+         *
+         * @param ifaceName Name of the iface.
+         */
+        void onUp(String ifaceName);
+
+        /**
+         * Interface is down.
+         *
+         * @param ifaceName Name of the iface.
+         */
+        void onDown(String ifaceName);
+    }
+
+    /**
+     * Setup an interface for Client mode operations.
+     *
+     * This method configures an interface in STA mode in all the native daemons
+     * (wificond, wpa_supplicant & vendor HAL).
+     *
+     * @param interfaceCallback Associated callback for notifying status changes for the iface.
+     * @return Returns the name of the allocated interface, will be null on failure.
+     */
+    public String setupInterfaceForClientMode(@NonNull InterfaceCallback interfaceCallback) {
+        return null;
+    }
+
+    /**
+     * Setup an interface for Soft AP mode operations.
+     *
+     * This method configures an interface in AP mode in all the native daemons
+     * (wificond, wpa_supplicant & vendor HAL).
+     *
+     * @param interfaceCallback Associated callback for notifying status changes for the iface.
+     * @return Returns the name of the allocated interface, will be null on failure.
+     */
+    public String setupInterfaceForSoftApMode(@NonNull InterfaceCallback interfaceCallback) {
+        return null;
+    }
+
+    /**
+     * Teardown an interface in Client/AP mode.
+     *
+     * This method tears down the associated interface from all the native daemons
+     * (wificond, wpa_supplicant & vendor HAL).
+     *
+     * @param ifaceName Name of the interface.
+     */
+    public void teardownInterface(@NonNull String ifaceName) {
+    }
+
     /********************************************************
      * Wificond operations
      ********************************************************/
diff --git a/service/java/com/android/server/wifi/WifiStateMachine.java b/service/java/com/android/server/wifi/WifiStateMachine.java
index 05b9b00..1521bb9 100644
--- a/service/java/com/android/server/wifi/WifiStateMachine.java
+++ b/service/java/com/android/server/wifi/WifiStateMachine.java
@@ -3250,16 +3250,18 @@
                 || stateChangeResult.wifiSsid.toString().isEmpty()) && isLinkDebouncing()) {
             return state;
         }
-        // Network id is only valid when we start connecting
+        // Network id and SSID are only valid when we start connecting
         if (SupplicantState.isConnecting(state)) {
             mWifiInfo.setNetworkId(lookupFrameworkNetworkId(stateChangeResult.networkId));
+            mWifiInfo.setBSSID(stateChangeResult.BSSID);
+            mWifiInfo.setSSID(stateChangeResult.wifiSsid);
         } else {
+            // Reset parameters according to WifiInfo.reset()
             mWifiInfo.setNetworkId(WifiConfiguration.INVALID_NETWORK_ID);
+            mWifiInfo.setBSSID(null);
+            mWifiInfo.setSSID(null);
         }
 
-        mWifiInfo.setBSSID(stateChangeResult.BSSID);
-        mWifiInfo.setSSID(stateChangeResult.wifiSsid);
-
         final WifiConfiguration config = getCurrentWifiConfiguration();
         if (config != null) {
             mWifiInfo.setEphemeral(config.ephemeral);
diff --git a/service/java/com/android/server/wifi/WifiStateMachinePrime.java b/service/java/com/android/server/wifi/WifiStateMachinePrime.java
index c49b645..de970ee 100644
--- a/service/java/com/android/server/wifi/WifiStateMachinePrime.java
+++ b/service/java/com/android/server/wifi/WifiStateMachinePrime.java
@@ -18,7 +18,6 @@
 
 import android.annotation.NonNull;
 import android.net.wifi.IApInterface;
-import android.net.wifi.IWificond;
 import android.net.wifi.WifiConfiguration;
 import android.net.wifi.WifiManager;
 import android.os.INetworkManagementService;
@@ -26,6 +25,7 @@
 import android.os.Message;
 import android.os.RemoteException;
 import android.util.Log;
+import android.util.Pair;
 
 import com.android.internal.util.Protocol;
 import com.android.internal.util.State;
@@ -47,12 +47,13 @@
 
     private final WifiInjector mWifiInjector;
     private final Looper mLooper;
+    private final WifiNative mWifiNative;
     private final INetworkManagementService mNMService;
 
-    private IWificond mWificond;
-
     private Queue<SoftApModeConfiguration> mApConfigQueue = new ConcurrentLinkedQueue<>();
 
+    private String mInterfaceName;
+
     /* The base for wifi message types */
     static final int BASE = Protocol.BASE_WIFI;
 
@@ -67,22 +68,17 @@
 
     WifiStateMachinePrime(WifiInjector wifiInjector,
                           Looper looper,
+                          WifiNative wifiNative,
                           INetworkManagementService nmService) {
         mWifiInjector = wifiInjector;
         mLooper = looper;
+        mWifiNative = wifiNative;
         mNMService = nmService;
 
-        // Clean up existing interfaces in wificond.
-        // This ensures that the framework and wificond are in a consistent state after a framework
-        // restart.
-        try {
-            mWificond = mWifiInjector.makeWificond();
-            if (mWificond != null) {
-                mWificond.tearDownInterfaces();
-            }
-        } catch (RemoteException e) {
-            Log.e(TAG, "wificond died during framework startup");
-        }
+        mInterfaceName = mWifiNative.getInterfaceName();
+
+        // make sure we do not have leftover state in the event of a restart
+        mWifiNative.tearDown();
     }
 
     /**
@@ -211,23 +207,13 @@
             return HANDLED;
         }
 
-        private void tearDownInterfaces() {
-            if (mWificond != null) {
-                try {
-                    mWificond.tearDownInterfaces();
-                } catch (RemoteException e) {
-                    // There is very little we can do here
-                    Log.e(TAG, "Failed to tear down interfaces via wificond");
-                }
-                mWificond = null;
-            }
-            return;
+        private void cleanup() {
+            mWifiNative.tearDown();
         }
 
         class ClientModeState extends State {
             @Override
             public void enter() {
-                mWificond = mWifiInjector.makeWificond();
             }
 
             @Override
@@ -240,7 +226,7 @@
 
             @Override
             public void exit() {
-                tearDownInterfaces();
+                cleanup();
             }
         }
 
@@ -280,17 +266,27 @@
                 // Continue with setup since we are changing modes
                 mApInterface = null;
 
+                Pair<Integer, IApInterface> statusAndInterface =
+                        mWifiNative.setupForSoftApMode(mInterfaceName);
+                if (statusAndInterface.first == WifiNative.SETUP_SUCCESS) {
+                    mApInterface = statusAndInterface.second;
+                } else {
+                    // TODO: incorporate metrics - or this particular one will be done in WifiNative
+                    //incrementMetricsForSetupFailure(statusAndInterface.first);
+                }
+                if (mApInterface == null) {
+                    // TODO: update battery stats that a failure occured - best to do in
+                    // initialization Failed.  Keeping line copied from WSM for a reference
+                    //setWifiApState(WIFI_AP_STATE_FAILED,
+                    //        WifiManager.SAP_START_FAILURE_GENERAL, null, mMode);
+                    initializationFailed("Could not get IApInterface instance");
+                    return;
+                }
+
                 try {
-                    mWificond = mWifiInjector.makeWificond();
-                    mApInterface = mWificond.createApInterface(
-                            mWifiInjector.getWifiNative().getInterfaceName());
                     mIfaceName = mApInterface.getInterfaceName();
                 } catch (RemoteException e) {
-                    initializationFailed(
-                            "Could not get IApInterface instance or its name from wificond");
-                    return;
-                } catch (NullPointerException e) {
-                    initializationFailed("wificond failure when initializing softap mode");
+                    initializationFailed("Could not get IApInterface name");
                     return;
                 }
                 mModeStateMachine.transitionTo(mSoftAPModeActiveState);
@@ -325,7 +321,7 @@
 
             @Override
             public void exit() {
-                tearDownInterfaces();
+                cleanup();
             }
 
             protected IApInterface getInterface() {
diff --git a/service/java/com/android/server/wifi/rtt/RttNative.java b/service/java/com/android/server/wifi/rtt/RttNative.java
index e920310..e085352 100644
--- a/service/java/com/android/server/wifi/rtt/RttNative.java
+++ b/service/java/com/android/server/wifi/rtt/RttNative.java
@@ -206,11 +206,8 @@
         for (ResponderConfig responder: request.mRttPeers) {
             RttConfig config = new RttConfig();
 
-            if (responder.macAddress.length != config.addr.length) {
-                Log.e(TAG, "Invalid configuration: unexpected BSSID length -- " + responder);
-                continue;
-            }
-            System.arraycopy(responder.macAddress, 0, config.addr, 0, config.addr.length);
+            System.arraycopy(responder.macAddress.toByteArray(), 0, config.addr, 0,
+                    config.addr.length);
 
             try {
                 config.type = responder.supports80211mc ? RttType.TWO_SIDED : RttType.ONE_SIDED;
diff --git a/service/java/com/android/server/wifi/rtt/RttServiceImpl.java b/service/java/com/android/server/wifi/rtt/RttServiceImpl.java
index ff722ae..3417f74 100644
--- a/service/java/com/android/server/wifi/rtt/RttServiceImpl.java
+++ b/service/java/com/android/server/wifi/rtt/RttServiceImpl.java
@@ -24,6 +24,7 @@
 import android.content.pm.PackageManager;
 import android.hardware.wifi.V1_0.RttResult;
 import android.hardware.wifi.V1_0.RttStatus;
+import android.net.MacAddress;
 import android.net.wifi.aware.IWifiAwareMacAddressProvider;
 import android.net.wifi.aware.IWifiAwareManager;
 import android.net.wifi.rtt.IRttCallback;
@@ -48,8 +49,6 @@
 import com.android.server.wifi.Clock;
 import com.android.server.wifi.util.WifiPermissionsUtil;
 
-import libcore.util.HexEncoding;
-
 import java.io.FileDescriptor;
 import java.io.PrintWriter;
 import java.util.ArrayList;
@@ -350,11 +349,7 @@
         private void cancelRanging(RttRequestInfo rri) {
             ArrayList<byte[]> macAddresses = new ArrayList<>();
             for (ResponderConfig peer : rri.request.mRttPeers) {
-                if (peer.macAddress.length != 6) {
-                    Log.e(TAG, "Invalid configuration: unexpected BSSID length -- " + peer);
-                    continue;
-                }
-                macAddresses.add(peer.macAddress);
+                macAddresses.add(peer.macAddress.toByteArray());
             }
 
             mRttNative.rangeCancel(rri.cmdId, macAddresses);
@@ -472,7 +467,7 @@
                 try {
                     callback.onRangingFailure(RangingResultCallback.STATUS_CODE_FAIL);
                 } catch (RemoteException e) {
-                    Log.e(TAG,  "RttServiceSynchronized.queueRangingRequest: spamming, callback "
+                    Log.e(TAG, "RttServiceSynchronized.queueRangingRequest: spamming, callback "
                             + "failed -- " + e);
                 }
                 return;
@@ -609,7 +604,7 @@
         /**
          * Perform pre-execution throttling checks:
          * - If all uids in ws are in background then check last execution and block if request is
-         *   more frequent than permitted
+         * more frequent than permitted
          * - If executing (i.e. permitted) then update execution time
          *
          * Returns true to permit execution, false to abort it.
@@ -735,9 +730,10 @@
                         + ", peerIdToMacMap=" + peerIdToMacMap);
             }
 
-            for (ResponderConfig rttPeer: request.request.mRttPeers) {
+            for (ResponderConfig rttPeer : request.request.mRttPeers) {
                 if (rttPeer.peerHandle != null && rttPeer.macAddress == null) {
-                    rttPeer.macAddress = peerIdToMacMap.get(rttPeer.peerHandle.peerId);
+                    rttPeer.macAddress = MacAddress.fromBytes(
+                            peerIdToMacMap.get(rttPeer.peerHandle.peerId));
                 }
             }
 
@@ -799,20 +795,18 @@
          */
         private List<RangingResult> postProcessResults(RangingRequest request,
                 List<RttResult> results) {
-            Map<String, RttResult> resultEntries = new HashMap<>();
-            for (RttResult result: results) {
-                resultEntries.put(new String(HexEncoding.encode(result.addr)), result);
+            Map<MacAddress, RttResult> resultEntries = new HashMap<>();
+            for (RttResult result : results) {
+                resultEntries.put(MacAddress.fromBytes(result.addr), result);
             }
 
             List<RangingResult> finalResults = new ArrayList<>(request.mRttPeers.size());
 
-            for (ResponderConfig peer: request.mRttPeers) {
-                RttResult resultForRequest = resultEntries.get(
-                        new String(HexEncoding.encode(peer.macAddress)));
+            for (ResponderConfig peer : request.mRttPeers) {
+                RttResult resultForRequest = resultEntries.get(peer.macAddress);
                 if (resultForRequest == null) {
                     if (VDBG) {
-                        Log.v(TAG, "postProcessResults: missing=" + new String(
-                                HexEncoding.encode(peer.macAddress)));
+                        Log.v(TAG, "postProcessResults: missing=" + peer.macAddress);
                     }
                     if (peer.peerHandle == null) {
                         finalResults.add(
diff --git a/service/java/com/android/server/wifi/scanner/WificondScannerImpl.java b/service/java/com/android/server/wifi/scanner/WificondScannerImpl.java
index 72a7a27..9afe061 100644
--- a/service/java/com/android/server/wifi/scanner/WificondScannerImpl.java
+++ b/service/java/com/android/server/wifi/scanner/WificondScannerImpl.java
@@ -35,7 +35,6 @@
 import java.io.FileDescriptor;
 import java.io.PrintWriter;
 import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.Collections;
 import java.util.HashSet;
 import java.util.List;
@@ -66,28 +65,16 @@
 
     private final Object mSettingsLock = new Object();
 
-    // Next scan settings to apply when the previous scan completes
-    private WifiNative.ScanSettings mPendingSingleScanSettings = null;
-    private WifiNative.ScanEventHandler mPendingSingleScanEventHandler = null;
-
     private ArrayList<ScanDetail> mNativeScanResults;
     private WifiScanner.ScanData mLatestSingleScanResult =
             new WifiScanner.ScanData(0, 0, new ScanResult[0]);
 
-    // Settings for the currently running scan, null if no scan active
+    // Settings for the currently running single scan, null if no scan active
     private LastScanSettings mLastScanSettings = null;
+    // Settings for the currently running pno scan, null if no scan active
+    private LastPnoScanSettings mLastPnoScanSettings = null;
 
-    // Pno related info.
-    private WifiNative.PnoSettings mPnoSettings = null;
-    private WifiNative.PnoEventHandler mPnoEventHandler;
     private final boolean mHwPnoScanSupported;
-    private final HwPnoDebouncer mHwPnoDebouncer;
-    private final HwPnoDebouncer.Listener mHwPnoDebouncerListener = new HwPnoDebouncer.Listener() {
-        public void onPnoScanFailed() {
-            Log.e(TAG, "Pno scan failure received");
-            reportPnoScanFailure();
-        }
-    };
 
     /**
      * Duration to wait before timing out a scan.
@@ -114,7 +101,6 @@
         mAlarmManager = (AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE);
         mEventHandler = new Handler(looper, this);
         mClock = clock;
-        mHwPnoDebouncer = new HwPnoDebouncer(mWifiNative, mAlarmManager, mEventHandler, mClock);
 
         // Check if the device supports HW PNO scans.
         mHwPnoScanSupported = mContext.getResources().getBoolean(
@@ -131,10 +117,9 @@
     @Override
     public void cleanup() {
         synchronized (mSettingsLock) {
-            mPendingSingleScanSettings = null;
-            mPendingSingleScanEventHandler = null;
             stopHwPnoScan();
             mLastScanSettings = null; // finally clear any active scan
+            mLastPnoScanSettings = null; // finally clear any active scan
         }
     }
 
@@ -162,14 +147,65 @@
             return false;
         }
         synchronized (mSettingsLock) {
-            if (mPendingSingleScanSettings != null
-                    || (mLastScanSettings != null && mLastScanSettings.singleScanActive)) {
+            if (mLastScanSettings != null) {
                 Log.w(TAG, "A single scan is already running");
                 return false;
             }
-            mPendingSingleScanSettings = settings;
-            mPendingSingleScanEventHandler = eventHandler;
-            processPendingScans();
+
+            ChannelCollection allFreqs = mChannelHelper.createChannelCollection();
+            boolean reportFullResults = false;
+
+            for (int i = 0; i < settings.num_buckets; ++i) {
+                WifiNative.BucketSettings bucketSettings = settings.buckets[i];
+                if ((bucketSettings.report_events
+                                & WifiScanner.REPORT_EVENT_FULL_SCAN_RESULT) != 0) {
+                    reportFullResults = true;
+                }
+                allFreqs.addChannels(bucketSettings);
+            }
+
+            Set<String> hiddenNetworkSSIDSet = new HashSet<>();
+            if (settings.hiddenNetworks != null) {
+                int numHiddenNetworks =
+                        Math.min(settings.hiddenNetworks.length, MAX_HIDDEN_NETWORK_IDS_PER_SCAN);
+                for (int i = 0; i < numHiddenNetworks; i++) {
+                    hiddenNetworkSSIDSet.add(settings.hiddenNetworks[i].ssid);
+                }
+            }
+            mLastScanSettings = new LastScanSettings(
+                        mClock.getElapsedSinceBootMillis(),
+                        reportFullResults, allFreqs, eventHandler);
+
+            boolean success = false;
+            Set<Integer> freqs;
+            if (!allFreqs.isEmpty()) {
+                freqs = allFreqs.getScanFreqs();
+                success = mWifiNative.scan(freqs, hiddenNetworkSSIDSet);
+                if (!success) {
+                    Log.e(TAG, "Failed to start scan, freqs=" + freqs);
+                }
+            } else {
+                // There is a scan request but no available channels could be scanned for.
+                // We regard it as a scan failure in this case.
+                Log.e(TAG, "Failed to start scan because there is no available channel to scan");
+            }
+            if (success) {
+                if (DBG) {
+                    Log.d(TAG, "Starting wifi scan for freqs=" + freqs);
+                }
+
+                mAlarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
+                        mClock.getElapsedSinceBootMillis() + SCAN_TIMEOUT_MS,
+                        TIMEOUT_ALARM_TAG, mScanTimeoutListener, mEventHandler);
+            } else {
+                // indicate scan failure async
+                mEventHandler.post(new Runnable() {
+                        public void run() {
+                            reportScanFailure();
+                        }
+                    });
+            }
+
             return true;
         }
     }
@@ -204,123 +240,6 @@
     private void handleScanTimeout() {
         Log.e(TAG, "Timed out waiting for scan result from wificond");
         reportScanFailure();
-        processPendingScans();
-    }
-
-    private boolean isDifferentPnoScanSettings(LastScanSettings newScanSettings) {
-        return (mLastScanSettings == null || !Arrays.equals(
-                newScanSettings.pnoNetworkList, mLastScanSettings.pnoNetworkList));
-    }
-
-    private void processPendingScans() {
-        synchronized (mSettingsLock) {
-            // Wait for the active scan result to come back to reschedule other scans,
-            // unless if HW pno scan is running. Hw PNO scans are paused it if there
-            // are other pending scans,
-            if (mLastScanSettings != null && !mLastScanSettings.hwPnoScanActive) {
-                return;
-            }
-
-            ChannelCollection allFreqs = mChannelHelper.createChannelCollection();
-            Set<String> hiddenNetworkSSIDSet = new HashSet<>();
-            final LastScanSettings newScanSettings =
-                    new LastScanSettings(mClock.getElapsedSinceBootMillis());
-
-            if (mPendingSingleScanSettings != null) {
-                boolean reportFullResults = false;
-                ChannelCollection singleScanFreqs = mChannelHelper.createChannelCollection();
-                for (int i = 0; i < mPendingSingleScanSettings.num_buckets; ++i) {
-                    WifiNative.BucketSettings bucketSettings =
-                            mPendingSingleScanSettings.buckets[i];
-                    if ((bucketSettings.report_events
-                                    & WifiScanner.REPORT_EVENT_FULL_SCAN_RESULT) != 0) {
-                        reportFullResults = true;
-                    }
-                    singleScanFreqs.addChannels(bucketSettings);
-                    allFreqs.addChannels(bucketSettings);
-                }
-                newScanSettings.setSingleScan(reportFullResults, singleScanFreqs,
-                        mPendingSingleScanEventHandler);
-
-                WifiNative.HiddenNetwork[] hiddenNetworks =
-                        mPendingSingleScanSettings.hiddenNetworks;
-                if (hiddenNetworks != null) {
-                    int numHiddenNetworks =
-                            Math.min(hiddenNetworks.length, MAX_HIDDEN_NETWORK_IDS_PER_SCAN);
-                    for (int i = 0; i < numHiddenNetworks; i++) {
-                        hiddenNetworkSSIDSet.add(hiddenNetworks[i].ssid);
-                    }
-                }
-
-                mPendingSingleScanSettings = null;
-                mPendingSingleScanEventHandler = null;
-            }
-
-            if (newScanSettings.singleScanActive) {
-                boolean success = false;
-                Set<Integer> freqs;
-                if (!allFreqs.isEmpty()) {
-                    pauseHwPnoScan();
-                    freqs = allFreqs.getScanFreqs();
-                    success = mWifiNative.scan(freqs, hiddenNetworkSSIDSet);
-                    if (!success) {
-                        Log.e(TAG, "Failed to start scan, freqs=" + freqs);
-                    }
-                } else {
-                    // There is a scan request but no available channels could be scanned for.
-                    // We regard it as a scan failure in this case.
-                    Log.e(TAG, "Failed to start scan because there is "
-                            + "no available channel to scan for");
-                }
-                if (success) {
-                    // TODO handle scan timeout
-                    if (DBG) {
-                        Log.d(TAG, "Starting wifi scan for freqs=" + freqs
-                                + ", single=" + newScanSettings.singleScanActive);
-                    }
-                    mLastScanSettings = newScanSettings;
-                    mAlarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
-                            mClock.getElapsedSinceBootMillis() + SCAN_TIMEOUT_MS,
-                            TIMEOUT_ALARM_TAG, mScanTimeoutListener, mEventHandler);
-                } else {
-                    // indicate scan failure async
-                    mEventHandler.post(new Runnable() {
-                            public void run() {
-                                if (newScanSettings.singleScanEventHandler != null) {
-                                    newScanSettings.singleScanEventHandler
-                                            .onScanStatus(WifiNative.WIFI_SCAN_FAILED);
-                                }
-                            }
-                        });
-                }
-            } else if (isHwPnoScanRequired()) {
-                newScanSettings.setHwPnoScan(mPnoSettings.networkList, mPnoEventHandler);
-                boolean status;
-                // If the PNO network list has changed from the previous request, ensure that
-                // we bypass the debounce logic and restart PNO scan.
-                if (isDifferentPnoScanSettings(newScanSettings)) {
-                    status = restartHwPnoScan(mPnoSettings);
-                } else {
-                    status = startHwPnoScan(mPnoSettings);
-                }
-                if (status) {
-                    mLastScanSettings = newScanSettings;
-                } else {
-                    Log.e(TAG, "Failed to start PNO scan");
-                    // indicate scan failure async
-                    mEventHandler.post(new Runnable() {
-                        public void run() {
-                            if (mPnoEventHandler != null) {
-                                mPnoEventHandler.onPnoScanFailed();
-                            }
-                            // Clean up PNO state, we don't want to continue PNO scanning.
-                            mPnoSettings = null;
-                            mPnoEventHandler = null;
-                        }
-                    });
-                }
-            }
-        }
     }
 
     @Override
@@ -330,16 +249,13 @@
                 Log.w(TAG, "Scan failed");
                 mAlarmManager.cancel(mScanTimeoutListener);
                 reportScanFailure();
-                processPendingScans();
                 break;
             case WifiMonitor.PNO_SCAN_RESULTS_EVENT:
                 pollLatestScanDataForPno();
-                processPendingScans();
                 break;
             case WifiMonitor.SCAN_RESULTS_EVENT:
                 mAlarmManager.cancel(mScanTimeoutListener);
                 pollLatestScanData();
-                processPendingScans();
                 break;
             default:
                 // ignore unknown event
@@ -361,21 +277,19 @@
 
     private void reportPnoScanFailure() {
         synchronized (mSettingsLock) {
-            if (mLastScanSettings != null && mLastScanSettings.hwPnoScanActive) {
-                if (mLastScanSettings.pnoScanEventHandler != null) {
-                    mLastScanSettings.pnoScanEventHandler.onPnoScanFailed();
+            if (mLastPnoScanSettings != null) {
+                if (mLastPnoScanSettings.pnoScanEventHandler != null) {
+                    mLastPnoScanSettings.pnoScanEventHandler.onPnoScanFailed();
                 }
                 // Clean up PNO state, we don't want to continue PNO scanning.
-                mPnoSettings = null;
-                mPnoEventHandler = null;
-                mLastScanSettings = null;
+                mLastPnoScanSettings = null;
             }
         }
     }
 
     private void pollLatestScanDataForPno() {
         synchronized (mSettingsLock) {
-            if (mLastScanSettings == null) {
+            if (mLastPnoScanSettings == null) {
                  // got a scan before we started scanning or after scan was canceled
                 return;
             }
@@ -385,10 +299,8 @@
             for (int i = 0; i < mNativeScanResults.size(); ++i) {
                 ScanResult result = mNativeScanResults.get(i).getScanResult();
                 long timestamp_ms = result.timestamp / 1000; // convert us -> ms
-                if (timestamp_ms > mLastScanSettings.startTime) {
-                    if (mLastScanSettings.hwPnoScanActive) {
-                        hwPnoScanResults.add(result);
-                    }
+                if (timestamp_ms > mLastPnoScanSettings.startTime) {
+                    hwPnoScanResults.add(result);
                 } else {
                     numFilteredScanResults++;
                 }
@@ -398,25 +310,11 @@
                 Log.d(TAG, "Filtering out " + numFilteredScanResults + " pno scan results.");
             }
 
-            if (mLastScanSettings.hwPnoScanActive
-                    && mLastScanSettings.pnoScanEventHandler != null) {
+            if (mLastPnoScanSettings.pnoScanEventHandler != null) {
                 ScanResult[] pnoScanResultsArray =
                         hwPnoScanResults.toArray(new ScanResult[hwPnoScanResults.size()]);
-                mLastScanSettings.pnoScanEventHandler.onPnoNetworkFound(pnoScanResultsArray);
+                mLastPnoScanSettings.pnoScanEventHandler.onPnoNetworkFound(pnoScanResultsArray);
             }
-            // On pno scan result event, we are expecting a mLastScanSettings for pno scan.
-            // However, if unlikey mLastScanSettings is for single scan, we need this part
-            // to protect from leaving WifiSingleScanStateMachine in a forever wait state.
-            if (mLastScanSettings.singleScanActive
-                    && mLastScanSettings.singleScanEventHandler != null) {
-                Log.w(TAG, "Polling pno scan result when single scan is active, reporting"
-                        + " single scan failure");
-                mLastScanSettings.singleScanEventHandler
-                        .onScanStatus(WifiNative.WIFI_SCAN_FAILED);
-            }
-            // mLastScanSettings is for either single/batched scan or pno scan.
-            // We can safely set it to null when pno scan finishes.
-            mLastScanSettings = null;
         }
     }
 
@@ -445,8 +343,7 @@
                 ScanResult result = mNativeScanResults.get(i).getScanResult();
                 long timestamp_ms = result.timestamp / 1000; // convert us -> ms
                 if (timestamp_ms > mLastScanSettings.startTime) {
-                    if (mLastScanSettings.singleScanActive
-                            && mLastScanSettings.singleScanFreqs.containsChannel(
+                    if (mLastScanSettings.singleScanFreqs.containsChannel(
                                     result.frequency)) {
                         singleScanResults.add(result);
                     }
@@ -458,8 +355,7 @@
                 Log.d(TAG, "Filtering out " + numFilteredScanResults + " scan results.");
             }
 
-            if (mLastScanSettings.singleScanActive
-                    && mLastScanSettings.singleScanEventHandler != null) {
+            if (mLastScanSettings.singleScanEventHandler != null) {
                 if (mLastScanSettings.reportSingleScanFullResults) {
                     for (ScanResult scanResult : singleScanResults) {
                         // ignore buckets scanned since there is only one bucket for a single scan
@@ -486,20 +382,11 @@
     }
 
     private boolean startHwPnoScan(WifiNative.PnoSettings pnoSettings) {
-        return mHwPnoDebouncer.startPnoScan(pnoSettings, mHwPnoDebouncerListener);
+        return mWifiNative.startPnoScan(pnoSettings);
     }
 
     private void stopHwPnoScan() {
-        mHwPnoDebouncer.stopPnoScan();
-    }
-
-    private void pauseHwPnoScan() {
-        mHwPnoDebouncer.forceStopPnoScan();
-    }
-
-    private boolean restartHwPnoScan(WifiNative.PnoSettings pnoSettings) {
-        mHwPnoDebouncer.forceStopPnoScan();
-        return mHwPnoDebouncer.startPnoScan(pnoSettings, mHwPnoDebouncerListener);
+        mWifiNative.stopPnoScan();
     }
 
     /**
@@ -511,26 +398,27 @@
         return (!isConnectedPno & mHwPnoScanSupported);
     }
 
-    private boolean isHwPnoScanRequired() {
-        synchronized (mSettingsLock) {
-            if (mPnoSettings == null) return false;
-            return isHwPnoScanRequired(mPnoSettings.isConnected);
-        }
-    }
-
     @Override
     public boolean setHwPnoList(WifiNative.PnoSettings settings,
             WifiNative.PnoEventHandler eventHandler) {
         synchronized (mSettingsLock) {
-            if (mPnoSettings != null) {
+            if (mLastPnoScanSettings != null) {
                 Log.w(TAG, "Already running a PNO scan");
                 return false;
             }
-            mPnoEventHandler = eventHandler;
-            mPnoSettings = settings;
+            if (!isHwPnoScanRequired(settings.isConnected)) {
+                return false;
+            }
 
-            // For wificond based PNO, we start the scan immediately when we set pno list.
-            processPendingScans();
+            if (startHwPnoScan(settings)) {
+                mLastPnoScanSettings = new LastPnoScanSettings(
+                            mClock.getElapsedSinceBootMillis(),
+                            settings.networkList, eventHandler);
+
+            } else {
+                Log.e(TAG, "Failed to start PNO scan");
+                reportPnoScanFailure();
+            }
             return true;
         }
     }
@@ -538,12 +426,11 @@
     @Override
     public boolean resetHwPnoList() {
         synchronized (mSettingsLock) {
-            if (mPnoSettings == null) {
+            if (mLastPnoScanSettings == null) {
                 Log.w(TAG, "No PNO scan running");
                 return false;
             }
-            mPnoEventHandler = null;
-            mPnoSettings = null;
+            mLastPnoScanSettings = null;
             // For wificond based PNO, we stop the scan immediately when we reset pno list.
             stopHwPnoScan();
             return true;
@@ -591,204 +478,36 @@
     }
 
     private static class LastScanSettings {
-        public long startTime;
-
-        LastScanSettings(long startTime) {
-            this.startTime = startTime;
-        }
-
-        // Single scan settings
-        public boolean singleScanActive = false;
-        public boolean reportSingleScanFullResults;
-        public ChannelCollection singleScanFreqs;
-        public WifiNative.ScanEventHandler singleScanEventHandler;
-
-        public void setSingleScan(boolean reportSingleScanFullResults,
+        LastScanSettings(long startTime,
+                boolean reportSingleScanFullResults,
                 ChannelCollection singleScanFreqs,
                 WifiNative.ScanEventHandler singleScanEventHandler) {
-            singleScanActive = true;
+            this.startTime = startTime;
             this.reportSingleScanFullResults = reportSingleScanFullResults;
             this.singleScanFreqs = singleScanFreqs;
             this.singleScanEventHandler = singleScanEventHandler;
         }
 
-        public boolean hwPnoScanActive = false;
-        public WifiNative.PnoNetwork[] pnoNetworkList;
-        public WifiNative.PnoEventHandler pnoScanEventHandler;
+        public long startTime;
+        public boolean reportSingleScanFullResults;
+        public ChannelCollection singleScanFreqs;
+        public WifiNative.ScanEventHandler singleScanEventHandler;
 
-        public void setHwPnoScan(
+    }
+
+    private static class LastPnoScanSettings {
+        LastPnoScanSettings(long startTime,
                 WifiNative.PnoNetwork[] pnoNetworkList,
                 WifiNative.PnoEventHandler pnoScanEventHandler) {
-            hwPnoScanActive = true;
+            this.startTime = startTime;
             this.pnoNetworkList = pnoNetworkList;
             this.pnoScanEventHandler = pnoScanEventHandler;
         }
+
+        public long startTime;
+        public WifiNative.PnoNetwork[] pnoNetworkList;
+        public WifiNative.PnoEventHandler pnoScanEventHandler;
+
     }
 
-    /**
-     * HW PNO Debouncer is used to debounce PNO requests. This guards against toggling the PNO
-     * state too often which is not handled very well by some drivers.
-     * Note: This is not thread safe!
-     */
-    public static class HwPnoDebouncer {
-        public static final String PNO_DEBOUNCER_ALARM_TAG = TAG + "Pno Monitor";
-        private static final int MINIMUM_PNO_GAP_MS = 5 * 1000;
-
-        private final WifiNative mWifiNative;
-        private final AlarmManager mAlarmManager;
-        private final Handler mEventHandler;
-        private final Clock mClock;
-        private long mLastPnoChangeTimeStamp = -1L;
-        private boolean mExpectedPnoState = false;
-        private boolean mCurrentPnoState = false;;
-        private boolean mWaitForTimer = false;
-        private Listener mListener;
-        private WifiNative.PnoSettings mPnoSettings;
-
-        /**
-         * Interface used to indicate PNO scan notifications.
-         */
-        public interface Listener {
-            /**
-             * Used to indicate a delayed PNO scan request failure.
-             */
-            void onPnoScanFailed();
-        }
-
-        public HwPnoDebouncer(WifiNative wifiNative, AlarmManager alarmManager,
-                Handler eventHandler, Clock clock) {
-            mWifiNative = wifiNative;
-            mAlarmManager = alarmManager;
-            mEventHandler = eventHandler;
-            mClock = clock;
-        }
-
-        /**
-         * Enable PNO state in wificond
-         */
-        private boolean startPnoScanInternal() {
-            if (mCurrentPnoState) {
-                if (DBG) Log.d(TAG, "PNO state is already enable");
-                return true;
-            }
-            if (mPnoSettings == null) {
-                Log.e(TAG, "PNO state change to enable failed, no available Pno settings");
-                return false;
-            }
-            mLastPnoChangeTimeStamp = mClock.getElapsedSinceBootMillis();
-            Log.d(TAG, "Remove all networks from supplicant before starting PNO scan");
-            mWifiNative.removeAllNetworks();
-            if (mWifiNative.startPnoScan(mPnoSettings)) {
-                Log.d(TAG, "Changed PNO state from " + mCurrentPnoState + " to enable");
-                mCurrentPnoState = true;
-                return true;
-            } else {
-                Log.e(TAG, "PNO state change to enable failed");
-                mCurrentPnoState = false;
-            }
-            return false;
-        }
-
-        /**
-         * Disable PNO state in wificond
-         */
-        private boolean stopPnoScanInternal() {
-            if (!mCurrentPnoState) {
-                if (DBG) Log.d(TAG, "PNO state is already disable");
-                return true;
-            }
-            mLastPnoChangeTimeStamp = mClock.getElapsedSinceBootMillis();
-            if (mWifiNative.stopPnoScan()) {
-                Log.d(TAG, "Changed PNO state from " + mCurrentPnoState + " to disable");
-                mCurrentPnoState = false;
-                return true;
-            } else {
-                Log.e(TAG, "PNO state change to disable failed");
-                mCurrentPnoState = false;
-            }
-            return false;
-        }
-
-        private final AlarmManager.OnAlarmListener mAlarmListener =
-                new AlarmManager.OnAlarmListener() {
-            public void onAlarm() {
-                if (DBG) Log.d(TAG, "PNO timer expired, expected state " + mExpectedPnoState);
-                if (mExpectedPnoState) {
-                    if (!startPnoScanInternal()) {
-                        if (mListener != null) {
-                            mListener.onPnoScanFailed();
-                        }
-                    }
-                } else {
-                    stopPnoScanInternal();
-                }
-                mWaitForTimer = false;
-            }
-        };
-
-        /**
-         * Enable/Disable PNO state. This method will debounce PNO scan requests.
-         * @param enable boolean indicating whether PNO is being enabled or disabled.
-         */
-        private boolean setPnoState(boolean enable) {
-            boolean isSuccess = true;
-            mExpectedPnoState = enable;
-            if (!mWaitForTimer) {
-                long timeDifference = mClock.getElapsedSinceBootMillis() - mLastPnoChangeTimeStamp;
-                if (timeDifference >= MINIMUM_PNO_GAP_MS) {
-                    if (enable) {
-                        isSuccess = startPnoScanInternal();
-                    } else {
-                        isSuccess = stopPnoScanInternal();
-                    }
-                } else {
-                    long alarmTimeout = MINIMUM_PNO_GAP_MS - timeDifference;
-                    Log.d(TAG, "Start PNO timer with delay " + alarmTimeout);
-                    mAlarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP,
-                            mClock.getElapsedSinceBootMillis() + alarmTimeout,
-                            PNO_DEBOUNCER_ALARM_TAG,
-                            mAlarmListener, mEventHandler);
-                    mWaitForTimer = true;
-                }
-            }
-            return isSuccess;
-        }
-
-        /**
-         * Start PNO scan
-         */
-        public boolean startPnoScan(WifiNative.PnoSettings pnoSettings, Listener listener) {
-            if (DBG) Log.d(TAG, "Starting PNO scan");
-            mListener = listener;
-            mPnoSettings = pnoSettings;
-            if (!setPnoState(true)) {
-                mListener = null;
-                return false;
-            }
-            return true;
-        }
-
-        /**
-         * Stop PNO scan
-         */
-        public void stopPnoScan() {
-            if (DBG) Log.d(TAG, "Stopping PNO scan");
-            setPnoState(false);
-            mListener = null;
-        }
-
-        /**
-         * Force stop PNO scanning. This method will bypass the debounce logic and stop PNO
-         * scan immediately.
-         */
-        public void forceStopPnoScan() {
-            if (DBG) Log.d(TAG, "Force stopping Pno scan");
-            // Cancel the debounce timer and stop PNO scan.
-            if (mWaitForTimer) {
-                mAlarmManager.cancel(mAlarmListener);
-                mWaitForTimer = false;
-            }
-            stopPnoScanInternal();
-        }
-    }
 }
diff --git a/tests/wifitests/Android.mk b/tests/wifitests/Android.mk
index 11e508d..b5c5844 100644
--- a/tests/wifitests/Android.mk
+++ b/tests/wifitests/Android.mk
@@ -68,7 +68,9 @@
 	android.test.runner \
 	wifi-service \
 	services \
-	android.hidl.manager-V1.0-java
+	android.hidl.manager-V1.0-java \
+	android.test.base \
+	android.test.mock
 
 # These must be explicitly included because they are not normally accessible
 # from apps.
diff --git a/tests/wifitests/src/com/android/server/wifi/SoftApManagerTest.java b/tests/wifitests/src/com/android/server/wifi/SoftApManagerTest.java
index cda9cf5..0c35904 100644
--- a/tests/wifitests/src/com/android/server/wifi/SoftApManagerTest.java
+++ b/tests/wifitests/src/com/android/server/wifi/SoftApManagerTest.java
@@ -33,17 +33,24 @@
 import static org.junit.Assert.assertEquals;
 import static org.mockito.Mockito.*;
 
+import android.app.test.TestAlarmManager;
 import android.content.Context;
 import android.content.Intent;
+import android.content.res.Resources;
+import android.database.ContentObserver;
 import android.net.InterfaceConfiguration;
+import android.net.Uri;
 import android.net.wifi.IApInterface;
 import android.net.wifi.WifiConfiguration;
 import android.net.wifi.WifiManager;
 import android.os.INetworkManagementService;
 import android.os.UserHandle;
 import android.os.test.TestLooper;
+import android.provider.Settings;
 import android.test.suitebuilder.annotation.SmallTest;
 
+import com.android.internal.R;
+import com.android.internal.util.WakeupMessage;
 import com.android.server.net.BaseNetworkObserver;
 
 import org.junit.Before;
@@ -77,11 +84,16 @@
 
     private final WifiConfiguration mDefaultApConfig = createDefaultApConfig();
 
+    private ContentObserver mContentObserver;
+    private TestLooper mLooper;
+    private TestAlarmManager mAlarmManager;
+
     @Mock Context mContext;
-    TestLooper mLooper;
+    @Mock Resources mResources;
     @Mock WifiNative mWifiNative;
     @Mock SoftApManager.Listener mListener;
     @Mock InterfaceConfiguration mInterfaceConfiguration;
+    @Mock FrameworkFacade mFrameworkFacade;
     @Mock IApInterface mApInterface;
     @Mock INetworkManagementService mNmService;
     @Mock WifiApConfigStore mWifiApConfigStore;
@@ -104,6 +116,15 @@
         when(mWifiNative.startSoftAp(any(), any())).thenReturn(true);
         when(mWifiNative.stopSoftAp()).thenReturn(true);
         when(mWifiNative.registerWificondDeathHandler(any())).thenReturn(true);
+
+        when(mFrameworkFacade.getIntegerSetting(
+                mContext, Settings.Global.SOFT_AP_TIMEOUT_ENABLED, 1)).thenReturn(1);
+        mAlarmManager = new TestAlarmManager();
+        when(mContext.getSystemService(Context.ALARM_SERVICE))
+                .thenReturn(mAlarmManager.getAlarmManager());
+        when(mContext.getResources()).thenReturn(mResources);
+        when(mResources.getInteger(R.integer.config_wifi_framework_soft_ap_timeout_delay))
+                .thenReturn(600000);
     }
 
     private WifiConfiguration createDefaultApConfig() {
@@ -118,6 +139,7 @@
         }
         SoftApManager newSoftApManager = new SoftApManager(mContext,
                                                            mLooper.getLooper(),
+                                                           mFrameworkFacade,
                                                            mWifiNative,
                                                            TEST_COUNTRY_CODE,
                                                            mListener,
@@ -189,6 +211,7 @@
                 new SoftApModeConfiguration(WifiManager.IFACE_IP_MODE_TETHERED, null);
         SoftApManager newSoftApManager = new SoftApManager(mContext,
                                                            mLooper.getLooper(),
+                                                           mFrameworkFacade,
                                                            mWifiNative,
                                                            TEST_COUNTRY_CODE,
                                                            mListener,
@@ -232,6 +255,7 @@
 
         SoftApManager newSoftApManager = new SoftApManager(mContext,
                                                            mLooper.getLooper(),
+                                                           mFrameworkFacade,
                                                            mWifiNative,
                                                            null,
                                                            mListener,
@@ -275,6 +299,7 @@
 
         SoftApManager newSoftApManager = new SoftApManager(mContext,
                                                            mLooper.getLooper(),
+                                                           mFrameworkFacade,
                                                            mWifiNative,
                                                            TEST_COUNTRY_CODE,
                                                            mListener,
@@ -309,8 +334,10 @@
         when(mWifiNative.startSoftAp(any(), any())).thenReturn(false);
         SoftApModeConfiguration softApModeConfig =
                 new SoftApModeConfiguration(WifiManager.IFACE_IP_MODE_TETHERED, mDefaultApConfig);
+
         SoftApManager newSoftApManager = new SoftApManager(mContext,
                                                            mLooper.getLooper(),
+                                                           mFrameworkFacade,
                                                            mWifiNative,
                                                            TEST_COUNTRY_CODE,
                                                            mListener,
@@ -415,30 +442,11 @@
         mSoftApListenerCaptor.getValue().onNumAssociatedStationsChanged(
                 TEST_NUM_CONNECTED_CLIENTS);
         mLooper.dispatchAll();
-        assertEquals(TEST_NUM_CONNECTED_CLIENTS, mSoftApManager.getNumAssociatedStations());
         verify(mWifiMetrics).addSoftApNumAssociatedStationsChangedEvent(TEST_NUM_CONNECTED_CLIENTS,
                 apConfig.getTargetMode());
     }
 
     @Test
-    public void handlesNumAssociatedStationsWhenNotStarted() throws Exception {
-        SoftApModeConfiguration apConfig =
-                new SoftApModeConfiguration(WifiManager.IFACE_IP_MODE_TETHERED, null);
-        startSoftApAndVerifyEnabled(apConfig);
-        mSoftApManager.stop();
-        mLooper.dispatchAll();
-
-        mSoftApListenerCaptor.getValue().onNumAssociatedStationsChanged(
-                TEST_NUM_CONNECTED_CLIENTS);
-        mLooper.dispatchAll();
-        /* Verify numAssociatedStations is not updated when soft AP is not started */
-        assertEquals(0, mSoftApManager.getNumAssociatedStations());
-        verify(mWifiMetrics).addSoftApUpChangedEvent(false, apConfig.getTargetMode());
-        verify(mWifiMetrics, never()).addSoftApNumAssociatedStationsChangedEvent(
-                TEST_NUM_CONNECTED_CLIENTS, apConfig.getTargetMode());
-    }
-
-    @Test
     public void handlesInvalidNumAssociatedStations() throws Exception {
         SoftApModeConfiguration apConfig =
                 new SoftApModeConfiguration(WifiManager.IFACE_IP_MODE_TETHERED, null);
@@ -449,41 +457,155 @@
         /* Invalid values should be ignored */
         mSoftApListenerCaptor.getValue().onNumAssociatedStationsChanged(-1);
         mLooper.dispatchAll();
-        assertEquals(TEST_NUM_CONNECTED_CLIENTS, mSoftApManager.getNumAssociatedStations());
         verify(mWifiMetrics, times(1)).addSoftApNumAssociatedStationsChangedEvent(
                 TEST_NUM_CONNECTED_CLIENTS, apConfig.getTargetMode());
     }
 
     @Test
-    public void resetsNumAssociatedStationsWhenStopped() throws Exception {
+    public void schedulesTimeoutTimerOnStart() throws Exception {
         SoftApModeConfiguration apConfig =
                 new SoftApModeConfiguration(WifiManager.IFACE_IP_MODE_TETHERED, null);
         startSoftApAndVerifyEnabled(apConfig);
 
-        mSoftApListenerCaptor.getValue().onNumAssociatedStationsChanged(
-                TEST_NUM_CONNECTED_CLIENTS);
-        mSoftApManager.stop();
-        mLooper.dispatchAll();
-        assertEquals(0, mSoftApManager.getNumAssociatedStations());
-        verify(mWifiMetrics).addSoftApUpChangedEvent(false, apConfig.getTargetMode());
+        // Verify timer is scheduled
+        verify(mAlarmManager.getAlarmManager()).setExact(anyInt(), anyLong(),
+                eq(mSoftApManager.SOFT_AP_SEND_MESSAGE_TIMEOUT_TAG), any(), any());
     }
 
     @Test
-    public void resetsNumAssociatedStationsOnFailure() throws Exception {
+    public void cancelsTimeoutTimerOnStop() throws Exception {
+        SoftApModeConfiguration apConfig =
+                new SoftApModeConfiguration(WifiManager.IFACE_IP_MODE_TETHERED, null);
+        startSoftApAndVerifyEnabled(apConfig);
+        mSoftApManager.stop();
+        mLooper.dispatchAll();
+
+        // Verify timer is canceled
+        verify(mAlarmManager.getAlarmManager()).cancel(any(WakeupMessage.class));
+    }
+
+    @Test
+    public void cancelsTimeoutTimerOnNewClientsConnect() throws Exception {
+        SoftApModeConfiguration apConfig =
+                new SoftApModeConfiguration(WifiManager.IFACE_IP_MODE_TETHERED, null);
+        startSoftApAndVerifyEnabled(apConfig);
+        mSoftApListenerCaptor.getValue().onNumAssociatedStationsChanged(
+                TEST_NUM_CONNECTED_CLIENTS);
+        mLooper.dispatchAll();
+
+        // Verify timer is canceled
+        verify(mAlarmManager.getAlarmManager()).cancel(any(WakeupMessage.class));
+    }
+
+    @Test
+    public void schedulesTimeoutTimerWhenAllClientsDisconnect() throws Exception {
         SoftApModeConfiguration apConfig =
                 new SoftApModeConfiguration(WifiManager.IFACE_IP_MODE_TETHERED, null);
         startSoftApAndVerifyEnabled(apConfig);
 
         mSoftApListenerCaptor.getValue().onNumAssociatedStationsChanged(
                 TEST_NUM_CONNECTED_CLIENTS);
-        /* Force soft AP to fail */
-        mDeathListenerCaptor.getValue().onDeath();
         mLooper.dispatchAll();
-        verify(mListener).onStateChanged(WifiManager.WIFI_AP_STATE_FAILED,
-                WifiManager.SAP_START_FAILURE_GENERAL);
+        // Verify timer is canceled at this point
+        verify(mAlarmManager.getAlarmManager()).cancel(any(WakeupMessage.class));
 
-        assertEquals(0, mSoftApManager.getNumAssociatedStations());
-        verify(mWifiMetrics).addSoftApUpChangedEvent(false, apConfig.getTargetMode());
+        mSoftApListenerCaptor.getValue().onNumAssociatedStationsChanged(0);
+        mLooper.dispatchAll();
+        // Verify timer is scheduled again
+        verify(mAlarmManager.getAlarmManager(), times(2)).setExact(anyInt(), anyLong(),
+                eq(mSoftApManager.SOFT_AP_SEND_MESSAGE_TIMEOUT_TAG), any(), any());
+    }
+
+    @Test
+    public void stopsSoftApOnTimeoutMessage() throws Exception {
+        SoftApModeConfiguration apConfig =
+                new SoftApModeConfiguration(WifiManager.IFACE_IP_MODE_TETHERED, null);
+        startSoftApAndVerifyEnabled(apConfig);
+
+        mAlarmManager.dispatch(mSoftApManager.SOFT_AP_SEND_MESSAGE_TIMEOUT_TAG);
+        mLooper.dispatchAll();
+
+        verify(mWifiNative).stopSoftAp();
+    }
+
+    @Test
+    public void cancelsTimeoutTimerOnTimeoutToggleChangeWhenNoClients() throws Exception {
+        SoftApModeConfiguration apConfig =
+                new SoftApModeConfiguration(WifiManager.IFACE_IP_MODE_TETHERED, null);
+        startSoftApAndVerifyEnabled(apConfig);
+
+        when(mFrameworkFacade.getIntegerSetting(
+                mContext, Settings.Global.SOFT_AP_TIMEOUT_ENABLED, 1)).thenReturn(0);
+        mContentObserver.onChange(false);
+        mLooper.dispatchAll();
+
+        // Verify timer is canceled
+        verify(mAlarmManager.getAlarmManager()).cancel(any(WakeupMessage.class));
+    }
+
+    @Test
+    public void schedulesTimeoutTimerOnTimeoutToggleChangeWhenNoClients() throws Exception {
+        // start with timeout toggle disabled
+        when(mFrameworkFacade.getIntegerSetting(
+                mContext, Settings.Global.SOFT_AP_TIMEOUT_ENABLED, 1)).thenReturn(0);
+        SoftApModeConfiguration apConfig =
+                new SoftApModeConfiguration(WifiManager.IFACE_IP_MODE_TETHERED, null);
+        startSoftApAndVerifyEnabled(apConfig);
+
+        when(mFrameworkFacade.getIntegerSetting(
+                mContext, Settings.Global.SOFT_AP_TIMEOUT_ENABLED, 1)).thenReturn(1);
+        mContentObserver.onChange(false);
+        mLooper.dispatchAll();
+
+        // Verify timer is scheduled
+        verify(mAlarmManager.getAlarmManager()).setExact(anyInt(), anyLong(),
+                eq(mSoftApManager.SOFT_AP_SEND_MESSAGE_TIMEOUT_TAG), any(), any());
+    }
+
+    @Test
+    public void doesNotScheduleTimeoutTimerOnStartWhenTimeoutIsDisabled() throws Exception {
+        // start with timeout toggle disabled
+        when(mFrameworkFacade.getIntegerSetting(
+                mContext, Settings.Global.SOFT_AP_TIMEOUT_ENABLED, 1)).thenReturn(0);
+        SoftApModeConfiguration apConfig =
+                new SoftApModeConfiguration(WifiManager.IFACE_IP_MODE_TETHERED, null);
+        startSoftApAndVerifyEnabled(apConfig);
+
+        // Verify timer is not scheduled
+        verify(mAlarmManager.getAlarmManager(), never()).setExact(anyInt(), anyLong(),
+                eq(mSoftApManager.SOFT_AP_SEND_MESSAGE_TIMEOUT_TAG), any(), any());
+    }
+
+    @Test
+    public void doesNotScheduleTimeoutTimerWhenAllClientsDisconnectButTimeoutIsDisabled()
+            throws Exception {
+        // start with timeout toggle disabled
+        when(mFrameworkFacade.getIntegerSetting(
+                mContext, Settings.Global.SOFT_AP_TIMEOUT_ENABLED, 1)).thenReturn(0);
+        SoftApModeConfiguration apConfig =
+                new SoftApModeConfiguration(WifiManager.IFACE_IP_MODE_TETHERED, null);
+        startSoftApAndVerifyEnabled(apConfig);
+        // add some clients
+        mSoftApListenerCaptor.getValue().onNumAssociatedStationsChanged(
+                TEST_NUM_CONNECTED_CLIENTS);
+        mLooper.dispatchAll();
+        // remove all clients
+        mSoftApListenerCaptor.getValue().onNumAssociatedStationsChanged(0);
+        mLooper.dispatchAll();
+        // Verify timer is not scheduled
+        verify(mAlarmManager.getAlarmManager(), never()).setExact(anyInt(), anyLong(),
+                eq(mSoftApManager.SOFT_AP_SEND_MESSAGE_TIMEOUT_TAG), any(), any());
+    }
+
+    @Test
+    public void unregistersSettingsObserverOnStop() throws Exception {
+        SoftApModeConfiguration apConfig =
+                new SoftApModeConfiguration(WifiManager.IFACE_IP_MODE_TETHERED, null);
+        startSoftApAndVerifyEnabled(apConfig);
+        mSoftApManager.stop();
+        mLooper.dispatchAll();
+
+        verify(mFrameworkFacade).unregisterContentObserver(eq(mContext), eq(mContentObserver));
     }
 
     /** Starts soft AP and verifies that it is enabled successfully. */
@@ -506,6 +628,8 @@
             expectedConfig = new WifiConfiguration(config);
         }
 
+        ArgumentCaptor<ContentObserver> observerCaptor = ArgumentCaptor.forClass(
+                ContentObserver.class);
         ArgumentCaptor<Intent> intentCaptor = ArgumentCaptor.forClass(Intent.class);
 
         mSoftApManager.start();
@@ -530,8 +654,10 @@
         checkApStateChangedBroadcast(capturedIntents.get(1), WIFI_AP_STATE_ENABLED,
                 WIFI_AP_STATE_ENABLING, HOTSPOT_NO_ERROR, TEST_INTERFACE_NAME,
                 softApConfig.getTargetMode());
-        assertEquals(0, mSoftApManager.getNumAssociatedStations());
         verify(mWifiMetrics).addSoftApUpChangedEvent(true, softApConfig.mTargetMode);
+        verify(mFrameworkFacade).registerContentObserver(eq(mContext), any(Uri.class), eq(true),
+                observerCaptor.capture());
+        mContentObserver = observerCaptor.getValue();
     }
 
     /** Verifies that soft AP was not disabled. */
diff --git a/tests/wifitests/src/com/android/server/wifi/WifiStateMachinePrimeTest.java b/tests/wifitests/src/com/android/server/wifi/WifiStateMachinePrimeTest.java
index 2e26769..f2d6cc6 100644
--- a/tests/wifitests/src/com/android/server/wifi/WifiStateMachinePrimeTest.java
+++ b/tests/wifitests/src/com/android/server/wifi/WifiStateMachinePrimeTest.java
@@ -20,13 +20,13 @@
 import static org.mockito.Mockito.*;
 
 import android.net.wifi.IApInterface;
-import android.net.wifi.IWificond;
 import android.net.wifi.WifiConfiguration;
 import android.net.wifi.WifiManager;
 import android.os.INetworkManagementService;
 import android.os.test.TestLooper;
 import android.test.suitebuilder.annotation.SmallTest;
 import android.util.Log;
+import android.util.Pair;
 
 import org.junit.After;
 import org.junit.Before;
@@ -56,7 +56,6 @@
     @Mock WifiNative mWifiNative;
     @Mock WifiApConfigStore mWifiApConfigStore;
     TestLooper mLooper;
-    @Mock IWificond mWificond;
     @Mock IApInterface mApInterface;
     @Mock INetworkManagementService mNMService;
     @Mock SoftApManager mSoftApManager;
@@ -76,11 +75,15 @@
         when(mWifiInjector.getWifiNative()).thenReturn(mWifiNative);
         when(mWifiNative.getInterfaceName()).thenReturn(WIFI_IFACE_NAME);
         mWifiStateMachinePrime = createWifiStateMachinePrime();
+
+        // creating a new WSMP cleans up any existing interfaces, check and reset expectations
+        verifyCleanupCalled();
+        reset(mWifiNative);
     }
 
     private WifiStateMachinePrime createWifiStateMachinePrime() {
-        when(mWifiInjector.makeWificond()).thenReturn(null);
-        return new WifiStateMachinePrime(mWifiInjector, mLooper.getLooper(), mNMService);
+        return new WifiStateMachinePrime(mWifiInjector, mLooper.getLooper(),
+                mWifiNative, mNMService);
     }
 
     /**
@@ -103,8 +106,8 @@
      */
     private void enterSoftApActiveMode(SoftApModeConfiguration softApConfig) throws Exception {
         String fromState = mWifiStateMachinePrime.getCurrentMode();
-        when(mWifiInjector.makeWificond()).thenReturn(mWificond);
-        when(mWificond.createApInterface(WIFI_IFACE_NAME)).thenReturn(mApInterface);
+        when(mWifiNative.setupForSoftApMode(WIFI_IFACE_NAME))
+                .thenReturn(new Pair(WifiNative.SETUP_SUCCESS, mApInterface));
         when(mApInterface.getInterfaceName()).thenReturn(WIFI_IFACE_NAME);
         doAnswer(
                 new Answer<Object>() {
@@ -126,24 +129,30 @@
         mLooper.dispatchAll();
         Log.e("WifiStateMachinePrimeTest", "check fromState: " + fromState);
         if (!fromState.equals(WIFI_DISABLED_STATE_STRING)) {
-            verify(mWificond).tearDownInterfaces();
+            verifyCleanupCalled();
         }
         assertEquals(SOFT_AP_MODE_ACTIVE_STATE_STRING, mWifiStateMachinePrime.getCurrentMode());
         verify(mSoftApManager).start();
     }
 
+    private void verifyCleanupCalled() {
+        // for now, this is a single call, but make a helper to avoid adding any additional cleanup
+        // checks
+        verify(mWifiNative).tearDown();
+    }
+
     /**
-     * Test that when a new instance of WifiStateMachinePrime is created, any existing interfaces in
-     * the retrieved Wificond instance are cleaned up.
+     * Test that when a new instance of WifiStateMachinePrime is created, any existing
+     * resources in WifiNative are cleaned up.
      * Expectations:  When the new WifiStateMachinePrime instance is created a call to
-     * Wificond.tearDownInterfaces() is made.
+     * WifiNative.tearDown() is made.
      */
     @Test
-    public void testWificondExistsOnStartup() throws Exception {
-        when(mWifiInjector.makeWificond()).thenReturn(mWificond);
+    public void testCleanupOnStart() throws Exception {
         WifiStateMachinePrime testWifiStateMachinePrime =
-                new WifiStateMachinePrime(mWifiInjector, mLooper.getLooper(), mNMService);
-        verify(mWificond).tearDownInterfaces();
+                new WifiStateMachinePrime(mWifiInjector, mLooper.getLooper(),
+                                          mWifiNative, mNMService);
+        verifyCleanupCalled();
     }
 
     /**
@@ -157,12 +166,10 @@
 
     /**
      * Test that WifiStateMachinePrime properly enters the SoftApModeActiveState from another state.
-     * Expectations: When going from one state to another, any interfaces that are still up are torn
-     * down.
+     * Expectations: When going from one state to another, cleanup will be called
      */
     @Test
     public void testEnterSoftApModeFromDifferentState() throws Exception {
-        when(mWifiInjector.makeWificond()).thenReturn(mWificond);
         mWifiStateMachinePrime.enterClientMode();
         mLooper.dispatchAll();
         assertEquals(CLIENT_MODE_STATE_STRING, mWifiStateMachinePrime.getCurrentMode());
@@ -179,7 +186,7 @@
         mWifiStateMachinePrime.disableWifi();
         mLooper.dispatchAll();
         verify(mSoftApManager).stop();
-        verify(mWificond).tearDownInterfaces();
+        verifyCleanupCalled();
         assertEquals(WIFI_DISABLED_STATE_STRING, mWifiStateMachinePrime.getCurrentMode());
     }
 
@@ -188,8 +195,10 @@
      */
     @Test
     public void testDisableWifiFromSoftApModeState() throws Exception {
-        // Use a failure getting wificond to stay in the SoftAPModeState
-        when(mWifiInjector.makeWificond()).thenReturn(null);
+        // Use a failure getting the interface to stay in SoftApMode
+        when(mWifiNative.setupForSoftApMode(WIFI_IFACE_NAME))
+                            .thenReturn(new Pair(WifiNative.SETUP_FAILURE_HAL, null));
+
         mWifiStateMachinePrime.enterSoftAPMode(
                 new SoftApModeConfiguration(WifiManager.IFACE_IP_MODE_TETHERED, null));
         mLooper.dispatchAll();
@@ -197,7 +206,7 @@
 
         mWifiStateMachinePrime.disableWifi();
         mLooper.dispatchAll();
-        // mWificond will be null due to this test, no call to tearDownInterfaces here.
+        verifyCleanupCalled();
         assertEquals(WIFI_DISABLED_STATE_STRING, mWifiStateMachinePrime.getCurrentMode());
     }
 
@@ -213,26 +222,11 @@
         mWifiStateMachinePrime.enterClientMode();
         mLooper.dispatchAll();
         verify(mSoftApManager).stop();
-        verify(mWificond).tearDownInterfaces();
+        verifyCleanupCalled();
         assertEquals(CLIENT_MODE_STATE_STRING, mWifiStateMachinePrime.getCurrentMode());
     }
 
     /**
-     * Test that we do not attempt to enter SoftApModeActiveState when we cannot get a reference to
-     * wificond.
-     * Expectations: After a failed attempt to get wificond from WifiInjector, we should remain in
-     * the SoftApModeState.
-     */
-    @Test
-    public void testWificondNullWhenSwitchingToApMode() throws Exception {
-        when(mWifiInjector.makeWificond()).thenReturn(null);
-        mWifiStateMachinePrime.enterSoftAPMode(
-                new SoftApModeConfiguration(WifiManager.IFACE_IP_MODE_TETHERED, null));
-        mLooper.dispatchAll();
-        assertEquals(SOFT_AP_MODE_STATE_STRING, mWifiStateMachinePrime.getCurrentMode());
-    }
-
-    /**
      * Test that we do not attempt to enter SoftApModeActiveState when we cannot get an ApInterface
      * from wificond.
      * Expectations: After a failed attempt to get an ApInterface from WifiInjector, we should
@@ -240,8 +234,8 @@
      */
     @Test
     public void testAPInterfaceFailedWhenSwitchingToApMode() throws Exception {
-        when(mWifiInjector.makeWificond()).thenReturn(mWificond);
-        when(mWificond.createApInterface(WIFI_IFACE_NAME)).thenReturn(null);
+        when(mWifiNative.setupForSoftApMode(WIFI_IFACE_NAME))
+                .thenReturn(new Pair(WifiNative.SETUP_FAILURE_HAL, null));
         mWifiStateMachinePrime.enterSoftAPMode(
                 new SoftApModeConfiguration(WifiManager.IFACE_IP_MODE_TETHERED, null));
         mLooper.dispatchAll();
@@ -255,8 +249,8 @@
      */
     @Test
     public void testEnterSoftApModeActiveWhenAlreadyInSoftApMode() throws Exception {
-        when(mWifiInjector.makeWificond()).thenReturn(mWificond);
-        when(mWificond.createApInterface(WIFI_IFACE_NAME)).thenReturn(null);
+        when(mWifiNative.setupForSoftApMode(WIFI_IFACE_NAME))
+                .thenReturn(new Pair(WifiNative.SETUP_SUCCESS, null));
         mWifiStateMachinePrime.enterSoftAPMode(
                 new SoftApModeConfiguration(WifiManager.IFACE_IP_MODE_TETHERED, null));
         mLooper.dispatchAll();
@@ -330,8 +324,8 @@
      */
     @Test
     public void testNullApModeConfigFails() throws Exception {
-        when(mWifiInjector.makeWificond()).thenReturn(mWificond);
-        when(mWificond.createApInterface(WIFI_IFACE_NAME)).thenReturn(null);
+        when(mWifiNative.setupForSoftApMode(WIFI_IFACE_NAME))
+                .thenReturn(new Pair(WifiNative.SETUP_SUCCESS, null));
         mWifiStateMachinePrime.enterSoftAPMode(
                 new SoftApModeConfiguration(WifiManager.IFACE_IP_MODE_TETHERED, null));
         mLooper.dispatchAll();
@@ -352,7 +346,8 @@
      */
     @Test
     public void testValidConfigIsSavedOnFailureToStart() throws Exception {
-        when(mWifiInjector.makeWificond()).thenReturn(null);
+        when(mWifiNative.setupForSoftApMode(WIFI_IFACE_NAME))
+                .thenReturn(new Pair(WifiNative.SETUP_SUCCESS, null));
         when(mWifiInjector.getWifiApConfigStore()).thenReturn(mWifiApConfigStore);
         WifiConfiguration config = new WifiConfiguration();
         config.SSID = "ThisIsAConfig";
@@ -365,14 +360,14 @@
     }
 
     /**
-     * Thest that two calls to switch to SoftAPMode in succession ends up with the correct config.
+     * Test that two calls to switch to SoftAPMode in succession ends up with the correct config.
      *
      * Expectation: we should end up in SoftAPMode state configured with the second config.
      */
     @Test
     public void testStartSoftApModeTwiceWithTwoConfigs() throws Exception {
-        when(mWifiInjector.makeWificond()).thenReturn(mWificond);
-        when(mWificond.createApInterface(WIFI_IFACE_NAME)).thenReturn(mApInterface);
+        when(mWifiNative.setupForSoftApMode(WIFI_IFACE_NAME))
+                .thenReturn(new Pair(WifiNative.SETUP_SUCCESS, mApInterface));
         when(mApInterface.getInterfaceName()).thenReturn(WIFI_IFACE_NAME);
         when(mWifiInjector.getWifiApConfigStore()).thenReturn(mWifiApConfigStore);
         WifiConfiguration config1 = new WifiConfiguration();
@@ -406,12 +401,12 @@
 
     /**
      * Test that we safely disable wifi if it is already disabled.
-     * Expectations: We should not interact with wificond since we should have already cleaned up
+     * Expectations: We should not interact with WifiNative since we should have already cleaned up
      * everything.
      */
     @Test
     public void disableWifiWhenAlreadyOff() throws Exception {
-        verifyNoMoreInteractions(mWificond);
+        verifyNoMoreInteractions(mWifiNative);
         mWifiStateMachinePrime.disableWifi();
     }
 }
diff --git a/tests/wifitests/src/com/android/server/wifi/WifiStateMachineTest.java b/tests/wifitests/src/com/android/server/wifi/WifiStateMachineTest.java
index ca8a342..e6972ea 100644
--- a/tests/wifitests/src/com/android/server/wifi/WifiStateMachineTest.java
+++ b/tests/wifitests/src/com/android/server/wifi/WifiStateMachineTest.java
@@ -2201,6 +2201,16 @@
         assertEquals(sBSSID1, wifiInfo.getBSSID());
         assertEquals(sFreq1, wifiInfo.getFrequency());
         assertEquals(SupplicantState.COMPLETED, wifiInfo.getSupplicantState());
+
+        mWsm.sendMessage(WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT, 0, 0,
+                new StateChangeResult(0, sWifiSsid, sBSSID1, SupplicantState.DISCONNECTED));
+        mLooper.dispatchAll();
+
+        wifiInfo = mWsm.getWifiInfo();
+        assertEquals(null, wifiInfo.getBSSID());
+        assertEquals(WifiSsid.NONE, wifiInfo.getSSID());
+        assertEquals(WifiConfiguration.INVALID_NETWORK_ID, wifiInfo.getNetworkId());
+        assertEquals(SupplicantState.DISCONNECTED, wifiInfo.getSupplicantState());
     }
 
     /**
diff --git a/tests/wifitests/src/com/android/server/wifi/rtt/RttNativeTest.java b/tests/wifitests/src/com/android/server/wifi/rtt/RttNativeTest.java
index 51fed83..5043c85 100644
--- a/tests/wifitests/src/com/android/server/wifi/rtt/RttNativeTest.java
+++ b/tests/wifitests/src/com/android/server/wifi/rtt/RttNativeTest.java
@@ -35,12 +35,11 @@
 import android.hardware.wifi.V1_0.RttType;
 import android.hardware.wifi.V1_0.WifiStatus;
 import android.hardware.wifi.V1_0.WifiStatusCode;
+import android.net.MacAddress;
 import android.net.wifi.rtt.RangingRequest;
 
 import com.android.server.wifi.HalDeviceManager;
 
-import libcore.util.HexEncoding;
-
 import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
@@ -118,19 +117,19 @@
 
         RttConfig rttConfig = halRequest.get(0);
         collector.checkThat("entry 0: MAC", rttConfig.addr,
-                equalTo(HexEncoding.decode("000102030400".toCharArray(), false)));
+                equalTo(MacAddress.fromString("00:01:02:03:04:00").toByteArray()));
         collector.checkThat("entry 0: MAC", rttConfig.type, equalTo(RttType.TWO_SIDED));
         collector.checkThat("entry 0: MAC", rttConfig.peer, equalTo(RttPeerType.AP));
 
         rttConfig = halRequest.get(1);
         collector.checkThat("entry 1: MAC", rttConfig.addr,
-                equalTo(HexEncoding.decode("0A0B0C0D0E00".toCharArray(), false)));
+                equalTo(MacAddress.fromString("0A:0B:0C:0D:0E:00").toByteArray()));
         collector.checkThat("entry 1: MAC", rttConfig.type, equalTo(RttType.ONE_SIDED));
         collector.checkThat("entry 1: MAC", rttConfig.peer, equalTo(RttPeerType.AP));
 
         rttConfig = halRequest.get(2);
         collector.checkThat("entry 2: MAC", rttConfig.addr,
-                equalTo(HexEncoding.decode("080908070605".toCharArray(), false)));
+                equalTo(MacAddress.fromString("08:09:08:07:06:05").toByteArray()));
         collector.checkThat("entry 2: MAC", rttConfig.type, equalTo(RttType.TWO_SIDED));
         collector.checkThat("entry 2: MAC", rttConfig.peer, equalTo(RttPeerType.NAN));
 
@@ -164,8 +163,8 @@
     public void testRangeCancel() throws Exception {
         int cmdId = 66;
         ArrayList<byte[]> macAddresses = new ArrayList<>();
-        byte[] mac1 = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05 };
-        byte[] mac2 = { 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F };
+        byte[] mac1 = {0x00, 0x01, 0x02, 0x03, 0x04, 0x05};
+        byte[] mac2 = {0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F};
         macAddresses.add(mac1);
         macAddresses.add(mac2);
 
@@ -212,7 +211,7 @@
         collector.checkThat("status", rttResult.status,
                 equalTo(RttStatus.SUCCESS));
         collector.checkThat("mac", rttResult.addr,
-                equalTo(HexEncoding.decode("05060708090A".toCharArray(), false)));
+                equalTo(MacAddress.fromString("05:06:07:08:09:0A").toByteArray()));
         collector.checkThat("distanceCm", rttResult.distanceInMm, equalTo(1500));
         collector.checkThat("timestamp", rttResult.timeStampInUs, equalTo(666L));
 
diff --git a/tests/wifitests/src/com/android/server/wifi/rtt/RttServiceImplTest.java b/tests/wifitests/src/com/android/server/wifi/rtt/RttServiceImplTest.java
index ee8c15f..7e71069 100644
--- a/tests/wifitests/src/com/android/server/wifi/rtt/RttServiceImplTest.java
+++ b/tests/wifitests/src/com/android/server/wifi/rtt/RttServiceImplTest.java
@@ -46,6 +46,7 @@
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.hardware.wifi.V1_0.RttResult;
+import android.net.MacAddress;
 import android.net.wifi.aware.IWifiAwareMacAddressProvider;
 import android.net.wifi.aware.IWifiAwareManager;
 import android.net.wifi.aware.PeerHandle;
@@ -68,8 +69,6 @@
 import com.android.server.wifi.Clock;
 import com.android.server.wifi.util.WifiPermissionsUtil;
 
-import libcore.util.HexEncoding;
-
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
@@ -261,9 +260,9 @@
         PeerHandle peerHandle2 = new PeerHandle(1023);
         request.mRttPeers.add(ResponderConfig.fromWifiAwarePeerHandleWithDefaults(peerHandle1));
         request.mRttPeers.add(ResponderConfig.fromWifiAwarePeerHandleWithDefaults(peerHandle2));
-        Map<Integer, byte[]> peerHandleToMacMap = new HashMap<>();
-        byte[] macAwarePeer1 = HexEncoding.decode("AABBCCDDEEFF".toCharArray(), false);
-        byte[] macAwarePeer2 = HexEncoding.decode("BBBBBBEEEEEE".toCharArray(), false);
+        Map<Integer, MacAddress> peerHandleToMacMap = new HashMap<>();
+        MacAddress macAwarePeer1 = MacAddress.fromString("AA:BB:CC:DD:EE:FF");
+        MacAddress macAwarePeer2 = MacAddress.fromString("BB:BB:BB:EE:EE:EE");
         peerHandleToMacMap.put(peerHandle1.peerId, macAwarePeer1);
         peerHandleToMacMap.put(peerHandle2.peerId, macAwarePeer2);
 
@@ -431,11 +430,11 @@
                         (ArrayList) mListCaptor.capture());
                 RangingRequest request0 = requests[0];
                 assertEquals(request0.mRttPeers.size(), mListCaptor.getValue().size());
-                assertArrayEquals(HexEncoding.decode("000102030400".toCharArray(), false),
+                assertArrayEquals(MacAddress.fromString("00:01:02:03:04:00").toByteArray(),
                         (byte[]) mListCaptor.getValue().get(0));
-                assertArrayEquals(HexEncoding.decode("0A0B0C0D0E00".toCharArray(), false),
+                assertArrayEquals(MacAddress.fromString("0A:0B:0C:0D:0E:00").toByteArray(),
                         (byte[]) mListCaptor.getValue().get(1));
-                assertArrayEquals(HexEncoding.decode("080908070605".toCharArray(), false),
+                assertArrayEquals(MacAddress.fromString("08:09:08:07:06:05").toByteArray(),
                         (byte[]) mListCaptor.getValue().get(2));
             }
 
@@ -1103,9 +1102,9 @@
 
     private class AwareTranslatePeerHandlesToMac extends MockAnswerUtil.AnswerWithArguments {
         private int mExpectedUid;
-        private Map<Integer, byte[]> mPeerIdToMacMap;
+        private Map<Integer, MacAddress> mPeerIdToMacMap;
 
-        AwareTranslatePeerHandlesToMac(int expectedUid, Map<Integer, byte[]> peerIdToMacMap) {
+        AwareTranslatePeerHandlesToMac(int expectedUid, Map<Integer, MacAddress> peerIdToMacMap) {
             mExpectedUid = expectedUid;
             mPeerIdToMacMap = peerIdToMacMap;
         }
@@ -1115,7 +1114,7 @@
 
             Map<Integer, byte[]> result = new HashMap<>();
             for (Integer peerId: peerIds) {
-                byte[] mac = mPeerIdToMacMap.get(peerId);
+                byte[] mac = mPeerIdToMacMap.get(peerId).toByteArray();
                 if (mac == null) {
                     continue;
                 }
diff --git a/tests/wifitests/src/com/android/server/wifi/rtt/RttTestUtils.java b/tests/wifitests/src/com/android/server/wifi/rtt/RttTestUtils.java
index db3cd17..ec56322 100644
--- a/tests/wifitests/src/com/android/server/wifi/rtt/RttTestUtils.java
+++ b/tests/wifitests/src/com/android/server/wifi/rtt/RttTestUtils.java
@@ -18,14 +18,13 @@
 
 import android.hardware.wifi.V1_0.RttResult;
 import android.hardware.wifi.V1_0.RttStatus;
+import android.net.MacAddress;
 import android.net.wifi.ScanResult;
 import android.net.wifi.rtt.RangingRequest;
 import android.net.wifi.rtt.RangingResult;
 import android.net.wifi.rtt.ResponderConfig;
 import android.util.Pair;
 
-import libcore.util.HexEncoding;
-
 import java.util.ArrayList;
 import java.util.List;
 
@@ -66,7 +65,7 @@
         scan1.setFlag(ScanResult.FLAG_80211mc_RESPONDER);
         ScanResult scan2 = new ScanResult();
         scan2.BSSID = "0A:0B:0C:0D:0E:" + String.format("%02d", lastMacByte);
-        byte[] mac1 = HexEncoding.decode("080908070605".toCharArray(), false);
+        MacAddress mac1 = MacAddress.fromString("08:09:08:07:06:05");
 
         builder.addAccessPoint(scan1);
         builder.addAccessPoint(scan2);
@@ -107,13 +106,13 @@
             }
         } else {
             results.add(new RangingResult(RangingResult.STATUS_SUCCESS,
-                    HexEncoding.decode("100102030405".toCharArray(), false), rangeCmBase++,
+                    MacAddress.fromString("10:01:02:03:04:05"), rangeCmBase++,
                     rangeStdDevCmBase++, rssiBase++, rangeTimestampBase++));
             results.add(new RangingResult(RangingResult.STATUS_SUCCESS,
-                    HexEncoding.decode("1A0B0C0D0E0F".toCharArray(), false), rangeCmBase++,
+                    MacAddress.fromString("1A:0B:0C:0D:0E:0F"), rangeCmBase++,
                     rangeStdDevCmBase++, rssiBase++, rangeTimestampBase++));
             results.add(new RangingResult(RangingResult.STATUS_SUCCESS,
-                    HexEncoding.decode("080908070605".toCharArray(), false), rangeCmBase++,
+                    MacAddress.fromString("08:09:08:07:06:05"), rangeCmBase++,
                     rangeStdDevCmBase++, rssiBase++, rangeTimestampBase++));
             halResults.add(getMatchingRttResult(results.get(0), null));
             halResults.add(getMatchingRttResult(results.get(1), null));
@@ -123,12 +122,13 @@
         return new Pair<>(halResults, results);
     }
 
-    private static RttResult getMatchingRttResult(RangingResult rangingResult, byte[] overrideMac) {
+    private static RttResult getMatchingRttResult(RangingResult rangingResult,
+            MacAddress overrideMac) {
         RttResult rttResult = new RttResult();
         rttResult.status = rangingResult.getStatus() == RangingResult.STATUS_SUCCESS
                 ? RttStatus.SUCCESS : RttStatus.FAILURE;
-        System.arraycopy(overrideMac == null ? rangingResult.getMacAddress() : overrideMac, 0,
-                rttResult.addr, 0, 6);
+        System.arraycopy(overrideMac == null ? rangingResult.getMacAddress().toByteArray()
+                : overrideMac.toByteArray(), 0, rttResult.addr, 0, 6);
         rttResult.distanceInMm = rangingResult.getDistanceMm();
         rttResult.distanceSdInMm = rangingResult.getDistanceStdDevMm();
         rttResult.rssi = rangingResult.getRssi();
diff --git a/tests/wifitests/src/com/android/server/wifi/scanner/WificondPnoScannerTest.java b/tests/wifitests/src/com/android/server/wifi/scanner/WificondPnoScannerTest.java
index 73ea143..15dfccc 100644
--- a/tests/wifitests/src/com/android/server/wifi/scanner/WificondPnoScannerTest.java
+++ b/tests/wifitests/src/com/android/server/wifi/scanner/WificondPnoScannerTest.java
@@ -17,7 +17,6 @@
 package com.android.server.wifi.scanner;
 
 import static com.android.server.wifi.ScanTestUtil.NativeScanSettingsBuilder;
-import static com.android.server.wifi.ScanTestUtil.assertScanDataEquals;
 import static com.android.server.wifi.ScanTestUtil.setupMockChannels;
 
 import static org.junit.Assert.*;
@@ -45,7 +44,6 @@
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
 
-import java.util.Arrays;
 import java.util.Set;
 
 /**
@@ -104,89 +102,6 @@
     }
 
     /**
-     * Verify that we pause & resume HW PNO scan when a single scan is scheduled and invokes the
-     * OnPnoNetworkFound callback when the scan results are received.
-     */
-    @Test
-    public void pauseResumeHwDisconnectedPnoScanForSingleScan() {
-        createScannerWithHwPnoScanSupport();
-
-        WifiNative.PnoEventHandler pnoEventHandler = mock(WifiNative.PnoEventHandler.class);
-        WifiNative.PnoSettings pnoSettings = createDummyPnoSettings(false);
-        WifiNative.ScanEventHandler eventHandler = mock(WifiNative.ScanEventHandler.class);
-        WifiNative.ScanSettings settings = createDummyScanSettings(false);
-        ScanResults scanResults = createDummyScanResults(false);
-
-        InOrder order = inOrder(eventHandler, mWifiNative);
-        // Start PNO scan
-        startSuccessfulPnoScan(null, pnoSettings, null, pnoEventHandler);
-        // Start single scan
-        assertTrue(mScanner.startSingleScan(settings, eventHandler));
-        // Verify that the PNO scan was paused and single scan runs successfully
-        expectSuccessfulSingleScanWithHwPnoEnabled(order, eventHandler,
-                expectedBandScanFreqs(WifiScanner.WIFI_BAND_24_GHZ), scanResults);
-        verifyNoMoreInteractions(eventHandler);
-
-        order = inOrder(pnoEventHandler, mWifiNative);
-        // Resume PNO scan after the single scan results are received and PNO monitor debounce
-        // alarm fires.
-        assertTrue("dispatch pno monitor alarm",
-                mAlarmManager.dispatch(
-                        WificondScannerImpl.HwPnoDebouncer.PNO_DEBOUNCER_ALARM_TAG));
-        assertEquals("dispatch message after alarm", 1, mLooper.dispatchAll());
-        // Now verify that PNO scan is resumed successfully
-        expectSuccessfulHwDisconnectedPnoScan(order, pnoSettings, pnoEventHandler, scanResults);
-        verifyNoMoreInteractions(pnoEventHandler);
-    }
-
-    /**
-     * Verify that the HW PNO delayed failure cleans up the scan settings cleanly.
-     * 1. Start Hw PNO.
-     * 2. Start Single Scan which should pause PNO scan.
-     * 3. Fail the PNO scan resume and verify that the OnPnoScanFailed callback is invoked.
-     * 4. Now restart a new PNO scan to ensure that the failure was cleanly handled.
-     */
-    @Test
-    public void delayedHwDisconnectedPnoScanFailure() {
-        createScannerWithHwPnoScanSupport();
-
-        WifiNative.PnoEventHandler pnoEventHandler = mock(WifiNative.PnoEventHandler.class);
-        WifiNative.PnoSettings pnoSettings = createDummyPnoSettings(false);
-        WifiNative.ScanEventHandler eventHandler = mock(WifiNative.ScanEventHandler.class);
-        WifiNative.ScanSettings settings = createDummyScanSettings(false);
-        ScanResults scanResults = createDummyScanResults(false);
-
-        InOrder order = inOrder(eventHandler, mWifiNative);
-        // Start PNO scan
-        startSuccessfulPnoScan(null, pnoSettings, null, pnoEventHandler);
-        // Start single scan
-        assertTrue(mScanner.startSingleScan(settings, eventHandler));
-        // Verify that the PNO scan was paused and single scan runs successfully
-        expectSuccessfulSingleScanWithHwPnoEnabled(order, eventHandler,
-                expectedBandScanFreqs(WifiScanner.WIFI_BAND_24_GHZ), scanResults);
-        verifyNoMoreInteractions(eventHandler);
-
-        // Fail the PNO resume and check that the OnPnoScanFailed callback is invoked.
-        order = inOrder(pnoEventHandler, mWifiNative);
-        when(mWifiNative.startPnoScan(any(WifiNative.PnoSettings.class))).thenReturn(false);
-        assertTrue("dispatch pno monitor alarm",
-                mAlarmManager.dispatch(
-                        WificondScannerImpl.HwPnoDebouncer.PNO_DEBOUNCER_ALARM_TAG));
-        assertEquals("dispatch message after alarm", 1, mLooper.dispatchAll());
-        order.verify(pnoEventHandler).onPnoScanFailed();
-        verifyNoMoreInteractions(pnoEventHandler);
-
-        // Add a new PNO scan request
-        startSuccessfulPnoScan(null, pnoSettings, null, pnoEventHandler);
-        assertTrue("dispatch pno monitor alarm",
-                mAlarmManager.dispatch(
-                        WificondScannerImpl.HwPnoDebouncer.PNO_DEBOUNCER_ALARM_TAG));
-        assertEquals("dispatch message after alarm", 1, mLooper.dispatchAll());
-        expectSuccessfulHwDisconnectedPnoScan(order, pnoSettings, pnoEventHandler, scanResults);
-        verifyNoMoreInteractions(pnoEventHandler);
-    }
-
-    /**
      * Verify that the HW PNO scan stop failure still resets the PNO scan state.
      * 1. Start Hw PNO.
      * 2. Stop Hw PNO scan which raises a stop command to WifiNative which is failed.
@@ -205,17 +120,11 @@
         // Fail the PNO stop.
         when(mWifiNative.stopPnoScan()).thenReturn(false);
         assertTrue(mScanner.resetHwPnoList());
-        assertTrue("dispatch pno monitor alarm",
-                mAlarmManager.dispatch(
-                        WificondScannerImpl.HwPnoDebouncer.PNO_DEBOUNCER_ALARM_TAG));
         mLooper.dispatchAll();
         verify(mWifiNative).stopPnoScan();
 
         // Add a new PNO scan request and ensure it runs successfully.
         startSuccessfulPnoScan(null, pnoSettings, null, pnoEventHandler);
-        assertTrue("dispatch pno monitor alarm",
-                mAlarmManager.dispatch(
-                        WificondScannerImpl.HwPnoDebouncer.PNO_DEBOUNCER_ALARM_TAG));
         mLooper.dispatchAll();
         InOrder order = inOrder(pnoEventHandler, mWifiNative);
         ScanResults scanResults = createDummyScanResults(false);
@@ -223,84 +132,6 @@
         verifyNoMoreInteractions(pnoEventHandler);
     }
 
-    /**
-     * Verify that the HW PNO scan is forcefully stopped (bypass debounce logic) and restarted when
-     * settings change.
-     * 1. Start Hw PNO.
-     * 2. Stop Hw PNO .
-     * 3. Now restart a new PNO scan with different settings.
-     * 4. Ensure that the stop was issued before we start again.
-     */
-    @Test
-    public void forceRestartHwDisconnectedPnoScanWhenSettingsChange() {
-        createScannerWithHwPnoScanSupport();
-
-        WifiNative.PnoEventHandler pnoEventHandler = mock(WifiNative.PnoEventHandler.class);
-        WifiNative.PnoSettings pnoSettings = createDummyPnoSettings(false);
-        InOrder order = inOrder(pnoEventHandler, mWifiNative);
-
-        // Start PNO scan
-        startSuccessfulPnoScan(null, pnoSettings, null, pnoEventHandler);
-        expectHwDisconnectedPnoScanStart(order, pnoSettings);
-
-        // Stop PNO now. This should trigger the debounce timer and not stop PNO.
-        assertTrue(mScanner.resetHwPnoList());
-        assertTrue(mAlarmManager.isPending(
-                WificondScannerImpl.HwPnoDebouncer.PNO_DEBOUNCER_ALARM_TAG));
-        order.verify(mWifiNative, never()).stopPnoScan();
-
-        // Now restart PNO scan with an extra network in settings.
-        pnoSettings.networkList =
-                Arrays.copyOf(pnoSettings.networkList, pnoSettings.networkList.length + 1);
-        pnoSettings.networkList[pnoSettings.networkList.length - 1] =
-                createDummyPnoNetwork("ssid_pno_new");
-        startSuccessfulPnoScan(null, pnoSettings, null, pnoEventHandler);
-
-        // This should bypass the debounce timer and stop PNO scan immediately and then start
-        // a new debounce timer for the start.
-        order.verify(mWifiNative).stopPnoScan();
-
-        // Trigger the debounce timer and ensure we start PNO scan again.
-        mAlarmManager.dispatch(WificondScannerImpl.HwPnoDebouncer.PNO_DEBOUNCER_ALARM_TAG);
-        mLooper.dispatchAll();
-        order.verify(mWifiNative).startPnoScan(pnoSettings);
-    }
-
-    /**
-     * Verify that the HW PNO scan is not forcefully stopped (bypass debounce logic) when
-     * settings don't change.
-     * 1. Start Hw PNO.
-     * 2. Stop Hw PNO .
-     * 3. Now restart a new PNO scan with same settings.
-     * 4. Ensure that the stop was never issued.
-     */
-    @Test
-    public void noForceRestartHwDisconnectedPnoScanWhenNoSettingsChange() {
-        createScannerWithHwPnoScanSupport();
-
-        WifiNative.PnoEventHandler pnoEventHandler = mock(WifiNative.PnoEventHandler.class);
-        WifiNative.PnoSettings pnoSettings = createDummyPnoSettings(false);
-        InOrder order = inOrder(pnoEventHandler, mWifiNative);
-
-        // Start PNO scan
-        startSuccessfulPnoScan(null, pnoSettings, null, pnoEventHandler);
-        expectHwDisconnectedPnoScanStart(order, pnoSettings);
-
-        // Stop PNO now. This should trigger the debounce timer and not stop PNO.
-        assertTrue(mScanner.resetHwPnoList());
-        assertTrue(mAlarmManager.isPending(
-                WificondScannerImpl.HwPnoDebouncer.PNO_DEBOUNCER_ALARM_TAG));
-        order.verify(mWifiNative, never()).stopPnoScan();
-
-        // Now restart PNO scan with the same settings.
-        startSuccessfulPnoScan(null, pnoSettings, null, pnoEventHandler);
-
-        // Trigger the debounce timer and ensure that we neither stop/start.
-        mLooper.dispatchAll();
-        order.verify(mWifiNative, never()).startPnoScan(any(WifiNative.PnoSettings.class));
-        order.verify(mWifiNative, never()).stopPnoScan();
-    }
-
     private void createScannerWithHwPnoScanSupport() {
         mResources.setBoolean(R.bool.config_wifi_background_scan_support, true);
         mScanner = new WificondScannerImpl(mContext, mWifiNative, mWifiMonitor,
@@ -389,27 +220,4 @@
         order.verify(eventHandler).onPnoNetworkFound(scanResults.getRawScanResults());
     }
 
-    /**
-     * Verify that the single scan results were delivered and that the PNO scan was paused and
-     * resumed either side of it.
-     */
-    private void expectSuccessfulSingleScanWithHwPnoEnabled(InOrder order,
-            WifiNative.ScanEventHandler eventHandler, Set<Integer> expectedScanFreqs,
-            ScanResults scanResults) {
-        // Pause PNO scan first
-        order.verify(mWifiNative).stopPnoScan();
-
-        order.verify(mWifiNative).scan(eq(expectedScanFreqs), any(Set.class));
-
-        when(mWifiNative.getPnoScanResults()).thenReturn(scanResults.getScanDetailArrayList());
-        when(mWifiNative.getScanResults()).thenReturn(scanResults.getScanDetailArrayList());
-
-        // Notify scan has finished
-        mWifiMonitor.sendMessage(mWifiNative.getInterfaceName(), WifiMonitor.SCAN_RESULTS_EVENT);
-        assertEquals("dispatch message after results event", 1, mLooper.dispatchAll());
-
-        order.verify(eventHandler).onScanStatus(WifiNative.WIFI_SCAN_RESULTS_AVAILABLE);
-        assertScanDataEquals(scanResults.getScanData(), mScanner.getLatestSingleScanResults());
-    }
-
 }