diff --git a/cmds/dumpstate/dumpstate.c b/cmds/dumpstate/dumpstate.c
index a33dcf3..5fa437a 100644
--- a/cmds/dumpstate/dumpstate.c
+++ b/cmds/dumpstate/dumpstate.c
@@ -242,8 +242,6 @@
     run_command("LAST LOGCAT", 10, "logcat", "-L", "-v", "threadtime",
                                              "-b", "all", "-d", "*:v", NULL);
 
-    for_each_userid(do_dump_settings, NULL);
-
     /* The following have a tendency to get wedged when wifi drivers/fw goes belly-up. */
 
     run_command("NETWORK INTERFACES", 10, "ip", "link", NULL);
diff --git a/cmds/dumpstate/dumpstate.h b/cmds/dumpstate/dumpstate.h
index d17a677..8335e26 100644
--- a/cmds/dumpstate/dumpstate.h
+++ b/cmds/dumpstate/dumpstate.h
@@ -26,7 +26,6 @@
 
 typedef void (for_each_pid_func)(int, const char *);
 typedef void (for_each_tid_func)(int, int, const char *);
-typedef void (for_each_userid_func)(int);
 
 /* prints the contents of a file */
 int dump_file(const char *title, const char *path);
@@ -57,9 +56,6 @@
 /* for each thread in the system, run the specified function */
 void for_each_tid(for_each_tid_func func, const char *header);
 
-/* for each user id in the system, run the specified function */
-void for_each_userid(for_each_userid_func func, const char *header);
-
 /* Displays a blocked processes in-kernel wait channel */
 void show_wchan(int pid, int tid, const char *name);
 
@@ -69,9 +65,6 @@
 /* Gets the dmesg output for the kernel */
 void do_dmesg();
 
-/* Dumps settings for a given user id */
-void do_dump_settings(int userid);
-
 /* Prints the contents of all the routing tables, both IPv4 and IPv6. */
 void dump_route_tables();
 
diff --git a/cmds/dumpstate/utils.c b/cmds/dumpstate/utils.c
index cf14c8b..3d9a2b5 100644
--- a/cmds/dumpstate/utils.c
+++ b/cmds/dumpstate/utils.c
@@ -206,22 +206,6 @@
     return;
 }
 
-void do_dump_settings(int userid) {
-    char title[255];
-    char dbpath[255];
-    char sql[255];
-    sprintf(title, "SYSTEM SETTINGS (user %d)", userid);
-    if (userid == 0) {
-        strcpy(dbpath, "/data/data/com.android.providers.settings/databases/settings.db");
-        strcpy(sql, "pragma user_version; select * from system; select * from secure; select * from global;");
-    } else {
-        sprintf(dbpath, "/data/system/users/%d/settings.db", userid);
-        strcpy(sql, "pragma user_version; select * from system; select * from secure;");
-    }
-    run_command(title, 20, SU_PATH, "root", "sqlite3", dbpath, sql, NULL);
-    return;
-}
-
 void do_dmesg() {
     printf("------ KERNEL LOG (dmesg) ------\n");
     /* Get size of kernel buffer */
diff --git a/cmds/service/service.cpp b/cmds/service/service.cpp
index 97fc47c..428b87c 100644
--- a/cmds/service/service.cpp
+++ b/cmds/service/service.cpp
@@ -146,6 +146,15 @@
                                 break;
                             }
                             data.writeInt32(atoi(argv[optind++]));
+                        } else if (strcmp(argv[optind], "i64") == 0) {
+                            optind++;
+                            if (optind >= argc) {
+                                aerr << "service: no integer supplied for 'i64'" << endl;
+                                wantsUsage = true;
+                                result = 10;
+                                break;
+                            }
+                            data.writeInt64(atoll(argv[optind++]));
                         } else if (strcmp(argv[optind], "s16") == 0) {
                             optind++;
                             if (optind >= argc) {
@@ -155,6 +164,24 @@
                                 break;
                             }
                             data.writeString16(String16(argv[optind++]));
+                        } else if (strcmp(argv[optind], "f") == 0) {
+                            optind++;
+                            if (optind >= argc) {
+                                aerr << "service: no number supplied for 'f'" << endl;
+                                wantsUsage = true;
+                                result = 10;
+                                break;
+                            }
+                            data.writeFloat(atof(argv[optind++]));
+                        } else if (strcmp(argv[optind], "d") == 0) {
+                            optind++;
+                            if (optind >= argc) {
+                                aerr << "service: no number supplied for 'd'" << endl;
+                                wantsUsage = true;
+                                result = 10;
+                                break;
+                            }
+                            data.writeDouble(atof(argv[optind++]));
                         } else if (strcmp(argv[optind], "null") == 0) {
                             optind++;
                             data.writeStrongBinder(NULL);
@@ -272,9 +299,12 @@
         aout << "Usage: service [-h|-?]\n"
                 "       service list\n"
                 "       service check SERVICE\n"
-                "       service call SERVICE CODE [i32 INT | s16 STR] ...\n"
+                "       service call SERVICE CODE [i32 N | i64 N | f N | d N | s16 STR ] ...\n"
                 "Options:\n"
-                "   i32: Write the integer INT into the send parcel.\n"
+                "   i32: Write the 32-bit integer N into the send parcel.\n"
+                "   i64: Write the 64-bit integer N into the send parcel.\n"
+                "   f:   Write the 32-bit single-precision number N into the send parcel.\n"
+                "   d:   Write the 64-bit double-precision number N into the send parcel.\n"
                 "   s16: Write the UTF-16 string STR into the send parcel.\n";
 //                "   intent: Write and Intent int the send parcel. ARGS can be\n"
 //                "       action=STR data=STR type=STR launchFlags=INT component=STR categories=STR[,STR,...]\n";
diff --git a/data/etc/android.hardware.sensor.hifi_sensors.xml b/data/etc/android.hardware.sensor.hifi_sensors.xml
new file mode 100644
index 0000000..bb3901c
--- /dev/null
+++ b/data/etc/android.hardware.sensor.hifi_sensors.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2009 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<!-- Feature for devices supporting hifi sensors. -->
+<permissions>
+    <feature name="android.hardware.sensor.hifi_sensors" />
+</permissions>
diff --git a/data/etc/android.software.midi.xml b/data/etc/android.software.midi.xml
new file mode 100644
index 0000000..a03cd55
--- /dev/null
+++ b/data/etc/android.software.midi.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2015 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<permissions>
+    <feature name="android.software.midi" />
+</permissions>
diff --git a/include/android/multinetwork.h b/include/android/multinetwork.h
new file mode 100644
index 0000000..6c718c9
--- /dev/null
+++ b/include/android/multinetwork.h
@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_MULTINETWORK_H
+#define ANDROID_MULTINETWORK_H
+
+#include <netdb.h>
+#include <stdlib.h>
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+
+/**
+ * The corresponding C type for android.net.Network#getNetworkHandle() return
+ * values.  The Java signed long value can be safely cast to a net_handle_t:
+ *
+ *     [C]    ((net_handle_t) java_long_network_handle)
+ *     [C++]  static_cast<net_handle_t>(java_long_network_handle)
+ *
+ * as appropriate.
+ */
+typedef uint64_t net_handle_t;
+
+/**
+ * The value NETWORK_UNSPECIFIED indicates no specific network.
+ *
+ * For some functions (documented below), a previous binding may be cleared
+ * by an invocation with NETWORK_UNSPECIFIED.
+ *
+ * Depending on the context it may indicate an error.  It is expressly
+ * not used to indicate some notion of the "current default network".
+ */
+#define NETWORK_UNSPECIFIED  ((net_handle_t)0)
+
+
+/**
+ * All functions below that return an int return 0 on success or -1
+ * on failure with an appropriate errno value set.
+ */
+
+
+/**
+ * Set the network to be used by the given socket file descriptor.
+ *
+ * To clear a previous socket binding invoke with NETWORK_UNSPECIFIED.
+ *
+ * This is the equivalent of:
+ *
+ *     [ android.net.Network#bindSocket() ]
+ *     https://developer.android.com/reference/android/net/Network.html#bindSocket(java.net.Socket)
+ */
+int android_setsocknetwork(net_handle_t network, int fd);
+
+
+/**
+ * Binds the current process to |network|.  All sockets created in the future
+ * (and not explicitly bound via android_setsocknetwork()) will be bound to
+ * |network|.  All host name resolutions will be limited to |network| as well.
+ * Note that if the network identified by |network| ever disconnects, all
+ * sockets created in this way will cease to work and all host name
+ * resolutions will fail.  This is by design so an application doesn't
+ * accidentally use sockets it thinks are still bound to a particular network.
+ *
+ * To clear a previous process binding invoke with NETWORK_UNSPECIFIED.
+ *
+ * This is the equivalent of:
+ *
+ *     [ android.net.ConnectivityManager#setProcessDefaultNetwork() ]
+ *     https://developer.android.com/reference/android/net/ConnectivityManager.html#setProcessDefaultNetwork(android.net.Network)
+ */
+int android_setprocnetwork(net_handle_t network);
+
+
+/**
+ * Perform hostname resolution via the DNS servers associated with |network|.
+ *
+ * All arguments (apart from |network|) are used identically as those passed
+ * to getaddrinfo(3).  Return and error values are identical to those of
+ * getaddrinfo(3), and in particular gai_strerror(3) can be used as expected.
+ * Similar to getaddrinfo(3):
+ *     - |hints| may be NULL (in which case man page documented defaults apply)
+ *     - either |node| or |service| may be NULL, but not both
+ *     - |res| must not be NULL
+ *
+ * This is the equivalent of:
+ *
+ *     [ android.net.Network#getAllByName() ]
+ *     https://developer.android.com/reference/android/net/Network.html#getAllByName(java.lang.String)
+ */
+int android_getaddrinfofornetwork(net_handle_t network,
+        const char *node, const char *service,
+        const struct addrinfo *hints, struct addrinfo **res);
+
+__END_DECLS
+
+#endif  // ANDROID_MULTINETWORK_H
diff --git a/include/binder/IPCThreadState.h b/include/binder/IPCThreadState.h
index 60c2242..1853cff 100644
--- a/include/binder/IPCThreadState.h
+++ b/include/binder/IPCThreadState.h
@@ -76,14 +76,18 @@
                                                         BpBinder* proxy); 
 
     static  void                shutdown();
-    
+
     // Call this to disable switching threads to background scheduling when
     // receiving incoming IPC calls.  This is specifically here for the
     // Android system process, since it expects to have background apps calling
     // in to it but doesn't want to acquire locks in its services while in
     // the background.
     static  void                disableBackgroundScheduling(bool disable);
-    
+
+            // Call blocks until the number of executing binder threads is less than
+            // the maximum number of binder threads threads allowed for this process.
+            void                blockUntilThreadAvailable();
+
 private:
                                 IPCThreadState();
                                 ~IPCThreadState();
@@ -101,9 +105,9 @@
             status_t            getAndExecuteCommand();
             status_t            executeCommand(int32_t command);
             void                processPendingDerefs();
-            
+
             void                clearCaller();
-            
+
     static  void                threadDestructor(void *st);
     static  void                freeBuffer(Parcel* parcel,
                                            const uint8_t* data, size_t dataSize,
@@ -114,7 +118,7 @@
     const   pid_t               mMyThreadId;
             Vector<BBinder*>    mPendingStrongDerefs;
             Vector<RefBase::weakref_type*> mPendingWeakDerefs;
-            
+
             Parcel              mIn;
             Parcel              mOut;
             status_t            mLastError;
diff --git a/include/binder/IProcessInfoService.h b/include/binder/IProcessInfoService.h
new file mode 100644
index 0000000..dc62f45
--- /dev/null
+++ b/include/binder/IProcessInfoService.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_I_PROCESS_INFO_SERVICE_H
+#define ANDROID_I_PROCESS_INFO_SERVICE_H
+
+#include <binder/IInterface.h>
+
+namespace android {
+
+// ----------------------------------------------------------------------
+
+class IProcessInfoService : public IInterface {
+public:
+    DECLARE_META_INTERFACE(ProcessInfoService);
+
+    virtual status_t    getProcessStatesFromPids( size_t length,
+                                                  /*in*/ int32_t* pids,
+                                                  /*out*/ int32_t* states) = 0;
+
+    enum {
+        GET_PROCESS_STATES_FROM_PIDS = IBinder::FIRST_CALL_TRANSACTION,
+    };
+};
+
+// ----------------------------------------------------------------------
+
+class BnProcessInfoService : public BnInterface<IProcessInfoService> {
+public:
+    virtual status_t    onTransact( uint32_t code,
+                                    const Parcel& data,
+                                    Parcel* reply,
+                                    uint32_t flags = 0);
+};
+
+// ----------------------------------------------------------------------
+
+}; // namespace android
+
+#endif // ANDROID_I_PROCESS_INFO_SERVICE_H
diff --git a/include/binder/Parcel.h b/include/binder/Parcel.h
index a52e044..0ba3abe 100644
--- a/include/binder/Parcel.h
+++ b/include/binder/Parcel.h
@@ -96,6 +96,7 @@
     status_t            writeInt32(int32_t val);
     status_t            writeUint32(uint32_t val);
     status_t            writeInt64(int64_t val);
+    status_t            writeUint64(uint64_t val);
     status_t            writeFloat(float val);
     status_t            writeDouble(double val);
     status_t            writeCString(const char* str);
@@ -157,6 +158,8 @@
     status_t            readUint32(uint32_t *pArg) const;
     int64_t             readInt64() const;
     status_t            readInt64(int64_t *pArg) const;
+    uint64_t            readUint64() const;
+    status_t            readUint64(uint64_t *pArg) const;
     float               readFloat() const;
     status_t            readFloat(float *pArg) const;
     double              readDouble() const;
diff --git a/include/binder/ProcessInfoService.h b/include/binder/ProcessInfoService.h
new file mode 100644
index 0000000..c5ead20
--- /dev/null
+++ b/include/binder/ProcessInfoService.h
@@ -0,0 +1,65 @@
+/*
+ * Copyright 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_PROCESS_INFO_SERVICE_H
+#define ANDROID_PROCESS_INFO_SERVICE_H
+
+#include <binder/IProcessInfoService.h>
+#include <utils/Errors.h>
+#include <utils/Singleton.h>
+#include <sys/types.h>
+
+namespace android {
+
+// ----------------------------------------------------------------------
+
+class ProcessInfoService : public Singleton<ProcessInfoService> {
+
+    friend class Singleton<ProcessInfoService>;
+    sp<IProcessInfoService> mProcessInfoService;
+    Mutex mProcessInfoLock;
+
+    ProcessInfoService();
+
+    status_t getProcessStatesImpl(size_t length, /*in*/ int32_t* pids, /*out*/ int32_t* states);
+    void updateBinderLocked();
+
+    static const int BINDER_ATTEMPT_LIMIT = 5;
+
+public:
+
+    /**
+     * For each PID in the given "pids" input array, write the current process state
+     * for that process into the "states" output array, or
+     * ActivityManager.PROCESS_STATE_NONEXISTENT * to indicate that no process with the given PID
+     * exists.
+     *
+     * Returns NO_ERROR if this operation was successful, or a negative error code otherwise.
+     */
+    static status_t getProcessStatesFromPids(size_t length, /*in*/ int32_t* pids,
+            /*out*/ int32_t* states) {
+        return ProcessInfoService::getInstance().getProcessStatesImpl(length, /*in*/ pids,
+                /*out*/ states);
+    }
+
+};
+
+// ----------------------------------------------------------------------
+
+}; // namespace android
+
+#endif // ANDROID_PROCESS_INFO_SERVICE_H
+
diff --git a/include/binder/ProcessState.h b/include/binder/ProcessState.h
index 3bc978d..f9edc2a 100644
--- a/include/binder/ProcessState.h
+++ b/include/binder/ProcessState.h
@@ -24,6 +24,8 @@
 
 #include <utils/threads.h>
 
+#include <pthread.h>
+
 // ---------------------------------------------------------------------------
 namespace android {
 
@@ -71,25 +73,33 @@
                                 ProcessState(const ProcessState& o);
             ProcessState&       operator=(const ProcessState& o);
             String8             makeBinderThreadName();
-            
+
             struct handle_entry {
                 IBinder* binder;
                 RefBase::weakref_type* refs;
             };
-            
+
             handle_entry*       lookupHandleLocked(int32_t handle);
 
             int                 mDriverFD;
             void*               mVMStart;
-            
+
+            // Protects thread count variable below.
+            pthread_mutex_t     mThreadCountLock;
+            pthread_cond_t      mThreadCountDecrement;
+            // Number of binder threads current executing a command.
+            size_t              mExecutingThreadsCount;
+            // Maximum number for binder threads allowed for this process.
+            size_t              mMaxThreads;
+
     mutable Mutex               mLock;  // protects everything below.
-            
+
             Vector<handle_entry>mHandleToObject;
 
             bool                mManagesContexts;
             context_check_func  mBinderContextCheckFunc;
             void*               mBinderContextUserData;
-            
+
             KeyedVector<String16, sp<IBinder> >
                                 mContexts;
 
diff --git a/include/gui/ISensorServer.h b/include/gui/ISensorServer.h
index 9c8afc5..9a29cb5 100644
--- a/include/gui/ISensorServer.h
+++ b/include/gui/ISensorServer.h
@@ -30,6 +30,7 @@
 
 class Sensor;
 class ISensorEventConnection;
+class String8;
 
 class ISensorServer : public IInterface
 {
@@ -37,7 +38,7 @@
     DECLARE_META_INTERFACE(SensorServer);
 
     virtual Vector<Sensor> getSensorList() = 0;
-    virtual sp<ISensorEventConnection> createSensorEventConnection() = 0;
+    virtual sp<ISensorEventConnection> createSensorEventConnection(const String8& packageName) = 0;
 };
 
 // ----------------------------------------------------------------------------
diff --git a/include/gui/SensorManager.h b/include/gui/SensorManager.h
index 3176462..1afff68 100644
--- a/include/gui/SensorManager.h
+++ b/include/gui/SensorManager.h
@@ -26,6 +26,7 @@
 #include <utils/RefBase.h>
 #include <utils/Singleton.h>
 #include <utils/Vector.h>
+#include <utils/String8.h>
 
 #include <gui/SensorEventQueue.h>
 
@@ -40,7 +41,6 @@
 class ISensorServer;
 class Sensor;
 class SensorEventQueue;
-
 // ----------------------------------------------------------------------------
 
 class SensorManager :
@@ -53,7 +53,7 @@
 
     ssize_t getSensorList(Sensor const* const** list) const;
     Sensor const* getDefaultSensor(int type);
-    sp<SensorEventQueue> createEventQueue();
+    sp<SensorEventQueue> createEventQueue(String8 packageName = String8(""));
 
 private:
     // DeathRecipient interface
diff --git a/include/input/IInputFlinger.h b/include/input/IInputFlinger.h
new file mode 100644
index 0000000..629310f
--- /dev/null
+++ b/include/input/IInputFlinger.h
@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _LIBINPUT_IINPUT_FLINGER_H
+#define _LIBINPUT_IINPUT_FLINGER_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <binder/IInterface.h>
+
+namespace android {
+
+/*
+ * This class defines the Binder IPC interface for accessing various
+ * InputFlinger features.
+ */
+class IInputFlinger : public IInterface {
+public:
+    DECLARE_META_INTERFACE(InputFlinger);
+};
+
+
+/**
+ * Binder implementation.
+ */
+class BnInputFlinger : public BnInterface<IInputFlinger> {
+public:
+    enum {
+        DO_SOMETHING_TRANSACTION = IBinder::FIRST_CALL_TRANSACTION,
+    };
+
+    virtual status_t onTransact(uint32_t code, const Parcel& data,
+            Parcel* reply, uint32_t flags = 0);
+};
+
+} // namespace android
+
+#endif // _LIBINPUT_IINPUT_FLINGER_H
diff --git a/include/input/InputDevice.h b/include/input/InputDevice.h
index adf9fb9..1ea69d3 100644
--- a/include/input/InputDevice.h
+++ b/include/input/InputDevice.h
@@ -73,7 +73,8 @@
     };
 
     void initialize(int32_t id, int32_t generation, int32_t controllerNumber,
-            const InputDeviceIdentifier& identifier, const String8& alias, bool isExternal);
+            const InputDeviceIdentifier& identifier, const String8& alias, bool isExternal,
+            bool hasMic);
 
     inline int32_t getId() const { return mId; }
     inline int32_t getControllerNumber() const { return mControllerNumber; }
@@ -84,6 +85,7 @@
         return mAlias.isEmpty() ? mIdentifier.name : mAlias;
     }
     inline bool isExternal() const { return mIsExternal; }
+    inline bool hasMic() const { return mHasMic; }
     inline uint32_t getSources() const { return mSources; }
 
     const MotionRange* getMotionRange(int32_t axis, uint32_t source) const;
@@ -121,6 +123,7 @@
     InputDeviceIdentifier mIdentifier;
     String8 mAlias;
     bool mIsExternal;
+    bool mHasMic;
     uint32_t mSources;
     int32_t mKeyboardType;
     sp<KeyCharacterMap> mKeyCharacterMap;
diff --git a/include/media/drm/DrmAPI.h b/include/media/drm/DrmAPI.h
index 49939fd..272881b 100644
--- a/include/media/drm/DrmAPI.h
+++ b/include/media/drm/DrmAPI.h
@@ -80,7 +80,10 @@
             kDrmPluginEventProvisionRequired = 1,
             kDrmPluginEventKeyNeeded,
             kDrmPluginEventKeyExpired,
-            kDrmPluginEventVendorDefined
+            kDrmPluginEventVendorDefined,
+            kDrmPluginEventSessionReclaimed,
+            kDrmPluginEventExpirationUpdate,
+            kDrmPluginEventKeysChange,
         };
 
         // Drm keys can be for offline content or for online streaming.
@@ -93,6 +96,33 @@
             kKeyType_Release
         };
 
+        // Enumerate KeyRequestTypes to allow an app to determine the
+        // type of a key request returned from getKeyRequest.
+        enum KeyRequestType {
+            kKeyRequestType_Unknown,
+            kKeyRequestType_Initial,
+            kKeyRequestType_Renewal,
+            kKeyRequestType_Release
+        };
+
+        // Enumerate KeyStatusTypes which indicate the state of a key
+        enum KeyStatusType
+        {
+            kKeyStatusType_Usable,
+            kKeyStatusType_Expired,
+            kKeyStatusType_OutputNotAllowed,
+            kKeyStatusType_StatusPending,
+            kKeyStatusType_InternalError
+        };
+
+        // Used by sendKeysChange to report the usability status of each
+        // key to the app.
+        struct KeyStatus
+        {
+            Vector<uint8_t> mKeyId;
+            KeyStatusType mType;
+        };
+
         DrmPlugin() {}
         virtual ~DrmPlugin() {}
 
@@ -135,7 +165,8 @@
                           Vector<uint8_t> const &initData,
                           String8 const &mimeType, KeyType keyType,
                           KeyedVector<String8, String8> const &optionalParameters,
-                          Vector<uint8_t> &request, String8 &defaultUrl) = 0;
+                          Vector<uint8_t> &request, String8 &defaultUrl,
+                          KeyRequestType *keyRequestType) = 0;
 
         //
         // After a key response is received by the app, it is provided to the
@@ -315,11 +346,18 @@
         }
 
     protected:
-        // Plugins call sendEvent to deliver events to the java app
+        // Plugins call these methods to deliver events to the java app
         void sendEvent(EventType eventType, int extra,
                        Vector<uint8_t> const *sessionId,
                        Vector<uint8_t> const *data);
 
+        void sendExpirationUpdate(Vector<uint8_t> const *sessionId,
+                                  int64_t expiryTimeInMS);
+
+        void sendKeysChange(Vector<uint8_t> const *sessionId,
+                            Vector<DrmPlugin::KeyStatus> const *keyStatusList,
+                            bool hasNewUsableKey);
+
     private:
         Mutex mEventLock;
         sp<DrmPluginListener> mListener;
@@ -331,14 +369,20 @@
     {
     public:
         virtual void sendEvent(DrmPlugin::EventType eventType, int extra,
-                               Vector<uint8_t> const *sesionId,
+                               Vector<uint8_t> const *sessionId,
                                Vector<uint8_t> const *data) = 0;
+
+        virtual void sendExpirationUpdate(Vector<uint8_t> const *sessionId,
+                                          int64_t expiryTimeInMS) = 0;
+
+        virtual void sendKeysChange(Vector<uint8_t> const *sessionId,
+                                    Vector<DrmPlugin::KeyStatus> const *keyStatusList,
+                                    bool hasNewUsableKey) = 0;
     };
 
     inline void DrmPlugin::sendEvent(EventType eventType, int extra,
                                      Vector<uint8_t> const *sessionId,
                                      Vector<uint8_t> const *data) {
-
         mEventLock.lock();
         sp<DrmPluginListener> listener = mListener;
         mEventLock.unlock();
@@ -348,6 +392,28 @@
         }
     }
 
+    inline void DrmPlugin::sendExpirationUpdate(Vector<uint8_t> const *sessionId,
+                                                int64_t expiryTimeInMS) {
+        mEventLock.lock();
+        sp<DrmPluginListener> listener = mListener;
+        mEventLock.unlock();
+
+        if (listener != NULL) {
+            listener->sendExpirationUpdate(sessionId, expiryTimeInMS);
+        }
+    }
+
+    inline void DrmPlugin::sendKeysChange(Vector<uint8_t> const *sessionId,
+                                          Vector<DrmPlugin::KeyStatus> const *keyStatusList,
+                                          bool hasNewUsableKey) {
+        mEventLock.lock();
+        sp<DrmPluginListener> listener = mListener;
+        mEventLock.unlock();
+
+        if (listener != NULL) {
+            listener->sendKeysChange(sessionId, keyStatusList, hasNewUsableKey);
+        }
+    }
 }  // namespace android
 
 #endif // DRM_API_H_
diff --git a/include/media/hardware/CryptoAPI.h b/include/media/hardware/CryptoAPI.h
index c800825..3e3257f 100644
--- a/include/media/hardware/CryptoAPI.h
+++ b/include/media/hardware/CryptoAPI.h
@@ -14,7 +14,9 @@
  * limitations under the License.
  */
 
+#include <media/stagefright/MediaErrors.h>
 #include <utils/Errors.h>
+#include <utils/Vector.h>
 
 #ifndef CRYPTO_API_H_
 
@@ -68,7 +70,18 @@
     // the resolution of the video being decrypted.  The media player should
     // call this method when the resolution is determined and any time it
     // is subsequently changed.
-    virtual void notifyResolution(uint32_t width, uint32_t height) {}
+
+    virtual void notifyResolution(uint32_t /* width */, uint32_t /* height */) {}
+
+    // A MediaDrm session may be associated with a MediaCrypto session.  The
+    // associated MediaDrm session is used to load decryption keys
+    // into the crypto/drm plugin.  The keys are then referenced by key-id
+    // in the 'key' parameter to the decrypt() method.
+    // Should return NO_ERROR on success, ERROR_DRM_SESSION_NOT_OPENED if
+    // the session is not opened and a code from MediaErrors.h otherwise.
+    virtual status_t setMediaDrmSession(const Vector<uint8_t> & /*sessionId */) {
+        return ERROR_UNSUPPORTED;
+    }
 
     // If the error returned falls into the range
     // ERROR_DRM_VENDOR_MIN..ERROR_DRM_VENDOR_MAX, errorDetailMsg should be
diff --git a/include/media/openmax/OMX_AsString.h b/include/media/openmax/OMX_AsString.h
index 0f177a1..7856c06 100644
--- a/include/media/openmax/OMX_AsString.h
+++ b/include/media/openmax/OMX_AsString.h
@@ -521,6 +521,8 @@
         case OMX_IndexParamVideoHevc:                   return "ParamVideoHevc";
 //      case OMX_IndexParamSliceSegments:               return "ParamSliceSegments";
         case OMX_IndexConfigAutoFramerateConversion:    return "ConfigAutoFramerateConversion";
+        case OMX_IndexConfigPriority:                   return "ConfigPriority";
+        case OMX_IndexConfigOperatingRate:              return "ConfigOperatingRate";
         default:                                        return asString((OMX_INDEXTYPE)i, def);
     }
 }
diff --git a/include/media/openmax/OMX_IVCommon.h b/include/media/openmax/OMX_IVCommon.h
index a5b9d18..f9b6f4b 100644
--- a/include/media/openmax/OMX_IVCommon.h
+++ b/include/media/openmax/OMX_IVCommon.h
@@ -157,6 +157,7 @@
      * an acceptable range once that is done.
      * */
     OMX_COLOR_FormatAndroidOpaque = 0x7F000789,
+    OMX_COLOR_Format32BitRGBA8888 = 0x7F00A000,
     /** Flexible 8-bit YUV format.  Codec should report this format
      *  as being supported if it supports any YUV420 packed planar
      *  or semiplanar formats.  When port is set to use this format,
diff --git a/include/media/openmax/OMX_IndexExt.h b/include/media/openmax/OMX_IndexExt.h
index ea3d0da..51bba31 100644
--- a/include/media/openmax/OMX_IndexExt.h
+++ b/include/media/openmax/OMX_IndexExt.h
@@ -83,6 +83,8 @@
     /* Other configurations */
     OMX_IndexExtOtherStartUnused = OMX_IndexKhronosExtensions + 0x00800000,
     OMX_IndexConfigAutoFramerateConversion,         /**< reference: OMX_CONFIG_BOOLEANTYPE */
+    OMX_IndexConfigPriority,                        /**< reference: OMX_PARAM_U32TYPE */
+    OMX_IndexConfigOperatingRate,                   /**< reference: OMX_PARAM_U32TYPE in Q16 format for video and in Hz for audio */
 
     /* Time configurations */
     OMX_IndexExtTimeStartUnused = OMX_IndexKhronosExtensions + 0x00900000,
diff --git a/libs/binder/Android.mk b/libs/binder/Android.mk
index 79decfe..d5860ef 100644
--- a/libs/binder/Android.mk
+++ b/libs/binder/Android.mk
@@ -26,6 +26,8 @@
     IMemory.cpp \
     IPCThreadState.cpp \
     IPermissionController.cpp \
+    IProcessInfoService.cpp \
+    ProcessInfoService.cpp \
     IServiceManager.cpp \
     MemoryDealer.cpp \
     MemoryBase.cpp \
diff --git a/libs/binder/IInterface.cpp b/libs/binder/IInterface.cpp
index 8c60dc4..2fcd3d9 100644
--- a/libs/binder/IInterface.cpp
+++ b/libs/binder/IInterface.cpp
@@ -14,6 +14,8 @@
  * limitations under the License.
  */
 
+#define LOG_TAG "IInterface"
+#include <utils/Log.h>
 #include <binder/IInterface.h>
 
 namespace android {
@@ -41,6 +43,25 @@
     return iface->onAsBinder();
 }
 
+
 // ---------------------------------------------------------------------------
 
 }; // namespace android
+
+extern "C" {
+
+void _ZN7android10IInterface8asBinderEv(void *retval, void* self) {
+    ALOGW("deprecated asBinder call, please update your code");
+    //ALOGI("self: %p, retval: %p", self, retval);
+    android::sp<android::IBinder> *ret = new(retval) android::sp<android::IBinder>;
+    *ret = android::IInterface::asBinder((android::IInterface*)self);
+}
+
+void _ZNK7android10IInterface8asBinderEv(void *retval, void *self) {
+    ALOGW("deprecated asBinder call, please update your code");
+    //ALOGI("self: %p, retval: %p", self, retval);
+    android::sp<android::IBinder> *ret = new(retval) android::sp<android::IBinder>;
+    *ret = android::IInterface::asBinder((android::IInterface*)self);
+}
+
+} // extern "C"
diff --git a/libs/binder/IPCThreadState.cpp b/libs/binder/IPCThreadState.cpp
index 9f68aa8..2baf474 100644
--- a/libs/binder/IPCThreadState.cpp
+++ b/libs/binder/IPCThreadState.cpp
@@ -399,6 +399,17 @@
     talkWithDriver(false);
 }
 
+void IPCThreadState::blockUntilThreadAvailable()
+{
+    pthread_mutex_lock(&mProcess->mThreadCountLock);
+    while (mProcess->mExecutingThreadsCount >= mProcess->mMaxThreads) {
+        ALOGW("Waiting for thread to be free. mExecutingThreadsCount=%i mMaxThreads=%i\n",
+                mProcess->mExecutingThreadsCount, mProcess->mMaxThreads);
+        pthread_cond_wait(&mProcess->mThreadCountDecrement, &mProcess->mThreadCountLock);
+    }
+    pthread_mutex_unlock(&mProcess->mThreadCountLock);
+}
+
 status_t IPCThreadState::getAndExecuteCommand()
 {
     status_t result;
@@ -414,8 +425,17 @@
                  << getReturnString(cmd) << endl;
         }
 
+        pthread_mutex_lock(&mProcess->mThreadCountLock);
+        mProcess->mExecutingThreadsCount++;
+        pthread_mutex_unlock(&mProcess->mThreadCountLock);
+
         result = executeCommand(cmd);
 
+        pthread_mutex_lock(&mProcess->mThreadCountLock);
+        mProcess->mExecutingThreadsCount--;
+        pthread_cond_broadcast(&mProcess->mThreadCountDecrement);
+        pthread_mutex_unlock(&mProcess->mThreadCountLock);
+
         // After executing the command, ensure that the thread is returned to the
         // foreground cgroup before rejoining the pool.  The driver takes care of
         // restoring the priority, but doesn't do anything with cgroups so we
diff --git a/libs/binder/IProcessInfoService.cpp b/libs/binder/IProcessInfoService.cpp
new file mode 100644
index 0000000..d86eb27
--- /dev/null
+++ b/libs/binder/IProcessInfoService.cpp
@@ -0,0 +1,94 @@
+/*
+ * Copyright 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <binder/IProcessInfoService.h>
+#include <binder/Parcel.h>
+#include <utils/Errors.h>
+#include <sys/types.h>
+
+namespace android {
+
+// ----------------------------------------------------------------------
+
+class BpProcessInfoService : public BpInterface<IProcessInfoService> {
+public:
+    BpProcessInfoService(const sp<IBinder>& impl)
+        : BpInterface<IProcessInfoService>(impl) {}
+
+    virtual status_t getProcessStatesFromPids(size_t length, /*in*/ int32_t* pids,
+            /*out*/ int32_t* states)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IProcessInfoService::getInterfaceDescriptor());
+        data.writeInt32Array(length, pids);
+        data.writeInt32(length); // write length of output array, used by java AIDL stubs
+        status_t err = remote()->transact(GET_PROCESS_STATES_FROM_PIDS, data, &reply);
+        if (err != NO_ERROR || ((err = reply.readExceptionCode()) != NO_ERROR)) {
+            return err;
+        }
+        int32_t replyLen = reply.readInt32();
+        if (static_cast<size_t>(replyLen) != length) {
+            return NOT_ENOUGH_DATA;
+        }
+        if (replyLen > 0 && (err = reply.read(states, length * sizeof(*states))) != NO_ERROR) {
+            return err;
+        }
+        return reply.readInt32();
+    }
+
+};
+
+IMPLEMENT_META_INTERFACE(ProcessInfoService, "android.os.IProcessInfoService");
+
+// ----------------------------------------------------------------------
+
+status_t BnProcessInfoService::onTransact( uint32_t code, const Parcel& data, Parcel* reply,
+        uint32_t flags) {
+    switch(code) {
+        case GET_PROCESS_STATES_FROM_PIDS: {
+            CHECK_INTERFACE(IProcessInfoService, data, reply);
+            int32_t arrayLen = data.readInt32();
+            if (arrayLen <= 0) {
+                reply->writeNoException();
+                reply->writeInt32(0);
+                reply->writeInt32(NOT_ENOUGH_DATA);
+                return NO_ERROR;
+            }
+
+            size_t len = static_cast<size_t>(arrayLen);
+            int32_t pids[len];
+            status_t res = data.read(pids, len * sizeof(*pids));
+
+            // Ignore output array length returned in the parcel here, as the states array must
+            // always be the same length as the input PIDs array.
+            int32_t states[len];
+            for (size_t i = 0; i < len; i++) states[i] = -1;
+            if (res == NO_ERROR) {
+                res = getProcessStatesFromPids(len, /*in*/ pids, /*out*/ states);
+            }
+            reply->writeNoException();
+            reply->writeInt32Array(len, states);
+            reply->writeInt32(res);
+            return NO_ERROR;
+        } break;
+        default:
+            return BBinder::onTransact(code, data, reply, flags);
+    }
+}
+
+// ----------------------------------------------------------------------
+
+}; // namespace android
diff --git a/libs/binder/Parcel.cpp b/libs/binder/Parcel.cpp
index 2c566f9..d4dd8c7 100644
--- a/libs/binder/Parcel.cpp
+++ b/libs/binder/Parcel.cpp
@@ -54,7 +54,17 @@
 
 // ---------------------------------------------------------------------------
 
-#define PAD_SIZE(s) (((s)+3)&~3)
+// This macro should never be used at runtime, as a too large value
+// of s could cause an integer overflow. Instead, you should always
+// use the wrapper function pad_size()
+#define PAD_SIZE_UNSAFE(s) (((s)+3)&~3)
+
+static size_t pad_size(size_t s) {
+    if (s > (SIZE_T_MAX - 3)) {
+        abort();
+    }
+    return PAD_SIZE_UNSAFE(s);
+}
 
 // Note: must be kept in sync with android/os/StrictMode.java's PENALTY_GATHER
 #define STRICT_MODE_PENALTY_GATHER (0x40 << 16)
@@ -355,6 +365,12 @@
 
 status_t Parcel::setDataSize(size_t size)
 {
+    if (size > INT32_MAX) {
+        // don't accept size_t values which may have come from an
+        // inadvertent conversion from a negative int.
+        return BAD_VALUE;
+    }
+
     status_t err;
     err = continueWrite(size);
     if (err == NO_ERROR) {
@@ -366,18 +382,36 @@
 
 void Parcel::setDataPosition(size_t pos) const
 {
+    if (pos > INT32_MAX) {
+        // don't accept size_t values which may have come from an
+        // inadvertent conversion from a negative int.
+        abort();
+    }
+
     mDataPos = pos;
     mNextObjectHint = 0;
 }
 
 status_t Parcel::setDataCapacity(size_t size)
 {
+    if (size > INT32_MAX) {
+        // don't accept size_t values which may have come from an
+        // inadvertent conversion from a negative int.
+        return BAD_VALUE;
+    }
+
     if (size > mDataCapacity) return continueWrite(size);
     return NO_ERROR;
 }
 
 status_t Parcel::setData(const uint8_t* buffer, size_t len)
 {
+    if (len > INT32_MAX) {
+        // don't accept size_t values which may have come from an
+        // inadvertent conversion from a negative int.
+        return BAD_VALUE;
+    }
+
     status_t err = restartWrite(len);
     if (err == NO_ERROR) {
         memcpy(const_cast<uint8_t*>(data()), buffer, len);
@@ -401,6 +435,12 @@
         return NO_ERROR;
     }
 
+    if (len > INT32_MAX) {
+        // don't accept size_t values which may have come from an
+        // inadvertent conversion from a negative int.
+        return BAD_VALUE;
+    }
+
     // range checks against the source parcel size
     if ((offset > parcel->mDataSize)
             || (len > parcel->mDataSize)
@@ -561,6 +601,12 @@
 
 status_t Parcel::finishWrite(size_t len)
 {
+    if (len > INT32_MAX) {
+        // don't accept size_t values which may have come from an
+        // inadvertent conversion from a negative int.
+        return BAD_VALUE;
+    }
+
     //printf("Finish write of %d\n", len);
     mDataPos += len;
     ALOGV("finishWrite Setting data pos of %p to %zu", this, mDataPos);
@@ -574,6 +620,12 @@
 
 status_t Parcel::writeUnpadded(const void* data, size_t len)
 {
+    if (len > INT32_MAX) {
+        // don't accept size_t values which may have come from an
+        // inadvertent conversion from a negative int.
+        return BAD_VALUE;
+    }
+
     size_t end = mDataPos + len;
     if (end < mDataPos) {
         // integer overflow
@@ -593,6 +645,12 @@
 
 status_t Parcel::write(const void* data, size_t len)
 {
+    if (len > INT32_MAX) {
+        // don't accept size_t values which may have come from an
+        // inadvertent conversion from a negative int.
+        return BAD_VALUE;
+    }
+
     void* const d = writeInplace(len);
     if (d) {
         memcpy(d, data, len);
@@ -603,7 +661,13 @@
 
 void* Parcel::writeInplace(size_t len)
 {
-    const size_t padded = PAD_SIZE(len);
+    if (len > INT32_MAX) {
+        // don't accept size_t values which may have come from an
+        // inadvertent conversion from a negative int.
+        return NULL;
+    }
+
+    const size_t padded = pad_size(len);
 
     // sanity check for integer overflow
     if (mDataPos+padded < mDataPos) {
@@ -652,6 +716,12 @@
 }
 
 status_t Parcel::writeInt32Array(size_t len, const int32_t *val) {
+    if (len > INT32_MAX) {
+        // don't accept size_t values which may have come from an
+        // inadvertent conversion from a negative int.
+        return BAD_VALUE;
+    }
+
     if (!val) {
         return writeAligned(-1);
     }
@@ -662,6 +732,12 @@
     return ret;
 }
 status_t Parcel::writeByteArray(size_t len, const uint8_t *val) {
+    if (len > INT32_MAX) {
+        // don't accept size_t values which may have come from an
+        // inadvertent conversion from a negative int.
+        return BAD_VALUE;
+    }
+
     if (!val) {
         return writeAligned(-1);
     }
@@ -677,6 +753,11 @@
     return writeAligned(val);
 }
 
+status_t Parcel::writeUint64(uint64_t val)
+{
+    return writeAligned(val);
+}
+
 status_t Parcel::writePointer(uintptr_t val)
 {
     return writeAligned<binder_uintptr_t>(val);
@@ -835,6 +916,12 @@
 {
     status_t status;
 
+    if (len > INT32_MAX) {
+        // don't accept size_t values which may have come from an
+        // inadvertent conversion from a negative int.
+        return BAD_VALUE;
+    }
+
     if (!mAllowFds || len <= IN_PLACE_BLOB_LIMIT) {
         ALOGV("writeBlob: write in place");
         status = writeInt32(0);
@@ -887,6 +974,12 @@
     const size_t len = val.getFlattenedSize();
     const size_t fd_count = val.getFdCount();
 
+    if ((len > INT32_MAX) || (fd_count > INT32_MAX)) {
+        // don't accept size_t values which may have come from an
+        // inadvertent conversion from a negative int.
+        return BAD_VALUE;
+    }
+
     err = this->writeInt32(len);
     if (err) return err;
 
@@ -894,7 +987,7 @@
     if (err) return err;
 
     // payload
-    void* const buf = this->writeInplace(PAD_SIZE(len));
+    void* const buf = this->writeInplace(pad_size(len));
     if (buf == NULL)
         return BAD_VALUE;
 
@@ -968,10 +1061,16 @@
 
 status_t Parcel::read(void* outData, size_t len) const
 {
-    if ((mDataPos+PAD_SIZE(len)) >= mDataPos && (mDataPos+PAD_SIZE(len)) <= mDataSize
-            && len <= PAD_SIZE(len)) {
+    if (len > INT32_MAX) {
+        // don't accept size_t values which may have come from an
+        // inadvertent conversion from a negative int.
+        return BAD_VALUE;
+    }
+
+    if ((mDataPos+pad_size(len)) >= mDataPos && (mDataPos+pad_size(len)) <= mDataSize
+            && len <= pad_size(len)) {
         memcpy(outData, mData+mDataPos, len);
-        mDataPos += PAD_SIZE(len);
+        mDataPos += pad_size(len);
         ALOGV("read Setting data pos of %p to %zu", this, mDataPos);
         return NO_ERROR;
     }
@@ -980,10 +1079,16 @@
 
 const void* Parcel::readInplace(size_t len) const
 {
-    if ((mDataPos+PAD_SIZE(len)) >= mDataPos && (mDataPos+PAD_SIZE(len)) <= mDataSize
-            && len <= PAD_SIZE(len)) {
+    if (len > INT32_MAX) {
+        // don't accept size_t values which may have come from an
+        // inadvertent conversion from a negative int.
+        return NULL;
+    }
+
+    if ((mDataPos+pad_size(len)) >= mDataPos && (mDataPos+pad_size(len)) <= mDataSize
+            && len <= pad_size(len)) {
         const void* data = mData+mDataPos;
-        mDataPos += PAD_SIZE(len);
+        mDataPos += pad_size(len);
         ALOGV("readInplace Setting data pos of %p to %zu", this, mDataPos);
         return data;
     }
@@ -992,7 +1097,7 @@
 
 template<class T>
 status_t Parcel::readAligned(T *pArg) const {
-    COMPILE_TIME_ASSERT_FUNCTION_SCOPE(PAD_SIZE(sizeof(T)) == sizeof(T));
+    COMPILE_TIME_ASSERT_FUNCTION_SCOPE(PAD_SIZE_UNSAFE(sizeof(T)) == sizeof(T));
 
     if ((mDataPos+sizeof(T)) <= mDataSize) {
         const void* data = mData+mDataPos;
@@ -1016,7 +1121,7 @@
 
 template<class T>
 status_t Parcel::writeAligned(T val) {
-    COMPILE_TIME_ASSERT_FUNCTION_SCOPE(PAD_SIZE(sizeof(T)) == sizeof(T));
+    COMPILE_TIME_ASSERT_FUNCTION_SCOPE(PAD_SIZE_UNSAFE(sizeof(T)) == sizeof(T));
 
     if ((mDataPos+sizeof(val)) <= mDataCapacity) {
 restart_write:
@@ -1060,6 +1165,16 @@
     return readAligned<int64_t>();
 }
 
+status_t Parcel::readUint64(uint64_t *pArg) const
+{
+    return readAligned(pArg);
+}
+
+uint64_t Parcel::readUint64() const
+{
+    return readAligned<uint64_t>();
+}
+
 status_t Parcel::readPointer(uintptr_t *pArg) const
 {
     status_t ret;
@@ -1147,7 +1262,7 @@
         const char* eos = reinterpret_cast<const char*>(memchr(str, 0, avail));
         if (eos) {
             const size_t len = eos - str;
-            mDataPos += PAD_SIZE(len+1);
+            mDataPos += pad_size(len+1);
             ALOGV("readCString Setting data pos of %p to %zu", this, mDataPos);
             return str;
         }
@@ -1306,8 +1421,14 @@
     const size_t len = this->readInt32();
     const size_t fd_count = this->readInt32();
 
+    if (len > INT32_MAX) {
+        // don't accept size_t values which may have come from an
+        // inadvertent conversion from a negative int.
+        return BAD_VALUE;
+    }
+
     // payload
-    void const* const buf = this->readInplace(PAD_SIZE(len));
+    void const* const buf = this->readInplace(pad_size(len));
     if (buf == NULL)
         return BAD_VALUE;
 
@@ -1546,6 +1667,12 @@
 
 status_t Parcel::growData(size_t len)
 {
+    if (len > INT32_MAX) {
+        // don't accept size_t values which may have come from an
+        // inadvertent conversion from a negative int.
+        return BAD_VALUE;
+    }
+
     size_t newSize = ((mDataSize+len)*3)/2;
     return (newSize <= mDataSize)
             ? (status_t) NO_MEMORY
@@ -1554,6 +1681,12 @@
 
 status_t Parcel::restartWrite(size_t desired)
 {
+    if (desired > INT32_MAX) {
+        // don't accept size_t values which may have come from an
+        // inadvertent conversion from a negative int.
+        return BAD_VALUE;
+    }
+
     if (mOwner) {
         freeData();
         return continueWrite(desired);
@@ -1594,6 +1727,12 @@
 
 status_t Parcel::continueWrite(size_t desired)
 {
+    if (desired > INT32_MAX) {
+        // don't accept size_t values which may have come from an
+        // inadvertent conversion from a negative int.
+        return BAD_VALUE;
+    }
+
     // If shrinking, first adjust for any objects that appear
     // after the new data size.
     size_t objectsSize = mObjectsSize;
diff --git a/libs/binder/ProcessInfoService.cpp b/libs/binder/ProcessInfoService.cpp
new file mode 100644
index 0000000..fb28643
--- /dev/null
+++ b/libs/binder/ProcessInfoService.cpp
@@ -0,0 +1,70 @@
+/*
+ * Copyright 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <binder/ProcessInfoService.h>
+#include <binder/IServiceManager.h>
+
+#include <utils/Log.h>
+#include <utils/String16.h>
+
+namespace android {
+
+ProcessInfoService::ProcessInfoService() {
+    updateBinderLocked();
+}
+
+status_t ProcessInfoService::getProcessStatesImpl(size_t length, /*in*/ int32_t* pids,
+        /*out*/ int32_t* states) {
+    status_t err = NO_ERROR;
+    sp<IProcessInfoService> pis;
+    mProcessInfoLock.lock();
+    pis = mProcessInfoService;
+    mProcessInfoLock.unlock();
+
+    for (int i = 0; i < BINDER_ATTEMPT_LIMIT; i++) {
+
+        if (pis != NULL) {
+            err = pis->getProcessStatesFromPids(length, /*in*/ pids, /*out*/ states);
+            if (err == NO_ERROR) return NO_ERROR; // success
+            if (IInterface::asBinder(pis)->isBinderAlive()) return err;
+        }
+        sleep(1);
+
+        mProcessInfoLock.lock();
+        if (pis == mProcessInfoService) {
+            updateBinderLocked();
+        }
+        pis = mProcessInfoService;
+        mProcessInfoLock.unlock();
+    }
+
+    ALOGW("%s: Could not retrieve process states from ProcessInfoService after %d retries.",
+            __FUNCTION__, BINDER_ATTEMPT_LIMIT);
+
+    return TIMED_OUT;
+}
+
+void ProcessInfoService::updateBinderLocked() {
+    const sp<IServiceManager> sm(defaultServiceManager());
+    if (sm != NULL) {
+        const String16 name("processinfo");
+        mProcessInfoService = interface_cast<IProcessInfoService>(sm->checkService(name));
+    }
+}
+
+ANDROID_SINGLETON_STATIC_INSTANCE(ProcessInfoService);
+
+}; // namespace android
diff --git a/libs/binder/ProcessState.cpp b/libs/binder/ProcessState.cpp
index 303d6cf..016d3c5 100644
--- a/libs/binder/ProcessState.cpp
+++ b/libs/binder/ProcessState.cpp
@@ -42,12 +42,13 @@
 #include <sys/stat.h>
 
 #define BINDER_VM_SIZE ((1*1024*1024) - (4096 *2))
+#define DEFAULT_MAX_BINDER_THREADS 15
 
 
 // ---------------------------------------------------------------------------
 
 namespace android {
- 
+
 class PoolThread : public Thread
 {
 public:
@@ -294,7 +295,9 @@
 
 status_t ProcessState::setThreadPoolMaxThreadCount(size_t maxThreads) {
     status_t result = NO_ERROR;
-    if (ioctl(mDriverFD, BINDER_SET_MAX_THREADS, &maxThreads) == -1) {
+    if (ioctl(mDriverFD, BINDER_SET_MAX_THREADS, &maxThreads) != -1) {
+        mMaxThreads = maxThreads;
+    } else {
         result = -errno;
         ALOGE("Binder ioctl to set max threads failed: %s", strerror(-result));
     }
@@ -322,7 +325,7 @@
             close(fd);
             fd = -1;
         }
-        size_t maxThreads = 15;
+        size_t maxThreads = DEFAULT_MAX_BINDER_THREADS;
         result = ioctl(fd, BINDER_SET_MAX_THREADS, &maxThreads);
         if (result == -1) {
             ALOGE("Binder ioctl to set max threads failed: %s", strerror(errno));
@@ -336,6 +339,10 @@
 ProcessState::ProcessState()
     : mDriverFD(open_driver())
     , mVMStart(MAP_FAILED)
+    , mThreadCountLock(PTHREAD_MUTEX_INITIALIZER)
+    , mThreadCountDecrement(PTHREAD_COND_INITIALIZER)
+    , mExecutingThreadsCount(0)
+    , mMaxThreads(DEFAULT_MAX_BINDER_THREADS)
     , mManagesContexts(false)
     , mBinderContextCheckFunc(NULL)
     , mBinderContextUserData(NULL)
diff --git a/libs/gui/ISensorServer.cpp b/libs/gui/ISensorServer.cpp
index 8e09e7c..3c85ec0 100644
--- a/libs/gui/ISensorServer.cpp
+++ b/libs/gui/ISensorServer.cpp
@@ -63,10 +63,11 @@
         return v;
     }
 
-    virtual sp<ISensorEventConnection> createSensorEventConnection()
+    virtual sp<ISensorEventConnection> createSensorEventConnection(const String8& packageName)
     {
         Parcel data, reply;
         data.writeInterfaceToken(ISensorServer::getInterfaceDescriptor());
+        data.writeString8(packageName);
         remote()->transact(CREATE_SENSOR_EVENT_CONNECTION, data, &reply);
         return interface_cast<ISensorEventConnection>(reply.readStrongBinder());
     }
@@ -96,7 +97,8 @@
         }
         case CREATE_SENSOR_EVENT_CONNECTION: {
             CHECK_INTERFACE(ISensorServer, data, reply);
-            sp<ISensorEventConnection> connection(createSensorEventConnection());
+            String8 packageName = data.readString8();
+            sp<ISensorEventConnection> connection(createSensorEventConnection(packageName));
             reply->writeStrongBinder(IInterface::asBinder(connection));
             return NO_ERROR;
         }
diff --git a/libs/gui/SensorManager.cpp b/libs/gui/SensorManager.cpp
index d6df404..142c6ec 100644
--- a/libs/gui/SensorManager.cpp
+++ b/libs/gui/SensorManager.cpp
@@ -139,14 +139,14 @@
     return NULL;
 }
 
-sp<SensorEventQueue> SensorManager::createEventQueue()
+sp<SensorEventQueue> SensorManager::createEventQueue(String8 packageName)
 {
     sp<SensorEventQueue> queue;
 
     Mutex::Autolock _l(mLock);
     while (assertStateLocked() == NO_ERROR) {
         sp<ISensorEventConnection> connection =
-                mSensorServer->createSensorEventConnection();
+                mSensorServer->createSensorEventConnection(packageName);
         if (connection == NULL) {
             // SensorService just died.
             ALOGE("createEventQueue: connection is NULL. SensorService died.");
diff --git a/libs/input/Android.mk b/libs/input/Android.mk
index f1921a4..944ac7f 100644
--- a/libs/input/Android.mk
+++ b/libs/input/Android.mk
@@ -27,6 +27,7 @@
 
 deviceSources := \
     $(commonSources) \
+    IInputFlinger.cpp \
     InputTransport.cpp \
     VelocityControl.cpp \
     VelocityTracker.cpp
diff --git a/libs/input/IInputFlinger.cpp b/libs/input/IInputFlinger.cpp
new file mode 100644
index 0000000..e009731
--- /dev/null
+++ b/libs/input/IInputFlinger.cpp
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <binder/Parcel.h>
+#include <binder/IPCThreadState.h>
+#include <binder/IServiceManager.h>
+
+#include <input/IInputFlinger.h>
+
+
+namespace android {
+
+class BpInputFlinger : public BpInterface<IInputFlinger> {
+public:
+    BpInputFlinger(const sp<IBinder>& impl) :
+            BpInterface<IInputFlinger>(impl) { }
+
+    virtual status_t doSomething() {
+        Parcel data, reply;
+        data.writeInterfaceToken(IInputFlinger::getInterfaceDescriptor());
+        remote()->transact(BnInputFlinger::DO_SOMETHING_TRANSACTION, data, &reply);
+        return reply.readInt32();
+    }
+};
+
+IMPLEMENT_META_INTERFACE(InputFlinger, "android.input.IInputFlinger");
+
+
+status_t BnInputFlinger::onTransact(
+        uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) {
+    switch(code) {
+    case DO_SOMETHING_TRANSACTION: {
+        CHECK_INTERFACE(IInputFlinger, data, reply);
+        reply->writeInt32(0);
+        break;
+    }
+    default:
+        return BBinder::onTransact(code, data, reply, flags);
+    }
+    return NO_ERROR;
+}
+
+};
diff --git a/libs/input/InputDevice.cpp b/libs/input/InputDevice.cpp
index b11110a..d755ed3 100644
--- a/libs/input/InputDevice.cpp
+++ b/libs/input/InputDevice.cpp
@@ -127,28 +127,31 @@
 // --- InputDeviceInfo ---
 
 InputDeviceInfo::InputDeviceInfo() {
-    initialize(-1, 0, -1, InputDeviceIdentifier(), String8(), false);
+    initialize(-1, 0, -1, InputDeviceIdentifier(), String8(), false, false);
 }
 
 InputDeviceInfo::InputDeviceInfo(const InputDeviceInfo& other) :
         mId(other.mId), mGeneration(other.mGeneration), mControllerNumber(other.mControllerNumber),
         mIdentifier(other.mIdentifier), mAlias(other.mAlias), mIsExternal(other.mIsExternal),
-        mSources(other.mSources), mKeyboardType(other.mKeyboardType),
-        mKeyCharacterMap(other.mKeyCharacterMap), mHasVibrator(other.mHasVibrator),
-        mHasButtonUnderPad(other.mHasButtonUnderPad), mMotionRanges(other.mMotionRanges) {
+        mHasMic(other.mHasMic), mSources(other.mSources),
+        mKeyboardType(other.mKeyboardType), mKeyCharacterMap(other.mKeyCharacterMap),
+        mHasVibrator(other.mHasVibrator), mHasButtonUnderPad(other.mHasButtonUnderPad),
+        mMotionRanges(other.mMotionRanges) {
 }
 
 InputDeviceInfo::~InputDeviceInfo() {
 }
 
 void InputDeviceInfo::initialize(int32_t id, int32_t generation, int32_t controllerNumber,
-        const InputDeviceIdentifier& identifier, const String8& alias, bool isExternal) {
+        const InputDeviceIdentifier& identifier, const String8& alias, bool isExternal,
+        bool hasMic) {
     mId = id;
     mGeneration = generation;
     mControllerNumber = controllerNumber;
     mIdentifier = identifier;
     mAlias = alias;
     mIsExternal = isExternal;
+    mHasMic = hasMic;
     mSources = 0;
     mKeyboardType = AINPUT_KEYBOARD_TYPE_NONE;
     mHasVibrator = false;
diff --git a/services/inputflinger/Android.mk b/services/inputflinger/Android.mk
index 1af59a3..ed867d8 100644
--- a/services/inputflinger/Android.mk
+++ b/services/inputflinger/Android.mk
@@ -45,3 +45,5 @@
 LOCAL_MODULE := libinputflinger
 
 include $(BUILD_SHARED_LIBRARY)
+
+include $(call all-makefiles-under,$(LOCAL_PATH))
diff --git a/services/inputflinger/EventHub.cpp b/services/inputflinger/EventHub.cpp
index 93ce010..4d54d56 100644
--- a/services/inputflinger/EventHub.cpp
+++ b/services/inputflinger/EventHub.cpp
@@ -1279,6 +1279,11 @@
         return -1;
     }
 
+    // Determine whether the device has a mic.
+    if (deviceHasMicLocked(device)) {
+        device->classes |= INPUT_DEVICE_CLASS_MIC;
+    }
+
     // Determine whether the device is external or internal.
     if (isExternalDeviceLocked(device)) {
         device->classes |= INPUT_DEVICE_CLASS_EXTERNAL;
@@ -1293,7 +1298,10 @@
     // Register with epoll.
     struct epoll_event eventItem;
     memset(&eventItem, 0, sizeof(eventItem));
-    eventItem.events = mUsingEpollWakeup ? EPOLLIN : EPOLLIN | EPOLLWAKEUP;
+    eventItem.events = EPOLLIN;
+    if (mUsingEpollWakeup) {
+        eventItem.events |= EPOLLWAKEUP;
+    }
     eventItem.data.u32 = deviceId;
     if (epoll_ctl(mEpollFd, EPOLL_CTL_ADD, fd, &eventItem)) {
         ALOGE("Could not add device fd to epoll instance.  errno=%d", errno);
@@ -1412,6 +1420,16 @@
     return device->identifier.bus == BUS_USB || device->identifier.bus == BUS_BLUETOOTH;
 }
 
+bool EventHub::deviceHasMicLocked(Device* device) {
+    if (device->configuration) {
+        bool value;
+        if (device->configuration->tryGetProperty(String8("audio.mic"), value)) {
+            return value;
+        }
+    }
+    return false;
+}
+
 int32_t EventHub::getNextControllerNumberLocked(Device* device) {
     if (mControllerNumbers.isFull()) {
         ALOGI("Maximum number of controllers reached, assigning controller number 0 to device %s",
diff --git a/services/inputflinger/EventHub.h b/services/inputflinger/EventHub.h
index 20179ae..d08f60e 100644
--- a/services/inputflinger/EventHub.h
+++ b/services/inputflinger/EventHub.h
@@ -131,6 +131,9 @@
     /* The input device has a vibrator (supports FF_RUMBLE). */
     INPUT_DEVICE_CLASS_VIBRATOR      = 0x00000200,
 
+    /* The input device has a microphone. */
+    INPUT_DEVICE_CLASS_MIC           = 0x00000400,
+
     /* The input device is virtual (not a real device, not part of UI configuration). */
     INPUT_DEVICE_CLASS_VIRTUAL       = 0x40000000,
 
@@ -394,6 +397,7 @@
     status_t loadKeyMapLocked(Device* device);
 
     bool isExternalDeviceLocked(Device* device);
+    bool deviceHasMicLocked(Device* device);
 
     int32_t getNextControllerNumberLocked(Device* device);
     void releaseControllerNumberLocked(Device* device);
diff --git a/services/inputflinger/InputReader.cpp b/services/inputflinger/InputReader.cpp
index ccf8ced..b39f367 100644
--- a/services/inputflinger/InputReader.cpp
+++ b/services/inputflinger/InputReader.cpp
@@ -417,6 +417,11 @@
         device->setExternal(true);
     }
 
+    // Devices with mics.
+    if (classes & INPUT_DEVICE_CLASS_MIC) {
+        device->setMic(true);
+    }
+
     // Switch-like devices.
     if (classes & INPUT_DEVICE_CLASS_SWITCH) {
         device->addMapper(new SwitchInputMapper(device));
@@ -858,7 +863,7 @@
         int32_t controllerNumber, const InputDeviceIdentifier& identifier, uint32_t classes) :
         mContext(context), mId(id), mGeneration(generation), mControllerNumber(controllerNumber),
         mIdentifier(identifier), mClasses(classes),
-        mSources(0), mIsExternal(false), mDropUntilNextSync(false) {
+        mSources(0), mIsExternal(false), mHasMic(false), mDropUntilNextSync(false) {
 }
 
 InputDevice::~InputDevice() {
@@ -877,6 +882,7 @@
             deviceInfo.getDisplayName().string());
     dump.appendFormat(INDENT2 "Generation: %d\n", mGeneration);
     dump.appendFormat(INDENT2 "IsExternal: %s\n", toString(mIsExternal));
+    dump.appendFormat(INDENT2 "HasMic:     %s\n", toString(mHasMic));
     dump.appendFormat(INDENT2 "Sources: 0x%08x\n", deviceInfo.getSources());
     dump.appendFormat(INDENT2 "KeyboardType: %d\n", deviceInfo.getKeyboardType());
 
@@ -1008,8 +1014,7 @@
 
 void InputDevice::getDeviceInfo(InputDeviceInfo* outDeviceInfo) {
     outDeviceInfo->initialize(mId, mGeneration, mControllerNumber, mIdentifier, mAlias,
-            mIsExternal);
-
+            mIsExternal, mHasMic);
     size_t numMappers = mMappers.size();
     for (size_t i = 0; i < numMappers; i++) {
         InputMapper* mapper = mMappers[i];
diff --git a/services/inputflinger/InputReader.h b/services/inputflinger/InputReader.h
index 34f20af..7a514e0 100644
--- a/services/inputflinger/InputReader.h
+++ b/services/inputflinger/InputReader.h
@@ -555,6 +555,9 @@
     inline bool isExternal() { return mIsExternal; }
     inline void setExternal(bool external) { mIsExternal = external; }
 
+    inline void setMic(bool hasMic) { mHasMic = hasMic; }
+    inline bool hasMic() const { return mHasMic; }
+
     inline bool isIgnored() { return mMappers.isEmpty(); }
 
     void dump(String8& dump);
@@ -618,6 +621,7 @@
 
     uint32_t mSources;
     bool mIsExternal;
+    bool mHasMic;
     bool mDropUntilNextSync;
 
     typedef int32_t (InputMapper::*GetStateFunc)(uint32_t sourceMask, int32_t code);
diff --git a/services/inputflinger/host/Android.mk b/services/inputflinger/host/Android.mk
new file mode 100644
index 0000000..b828175
--- /dev/null
+++ b/services/inputflinger/host/Android.mk
@@ -0,0 +1,62 @@
+# Copyright (C) 2015 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_CLANG := true
+
+LOCAL_SRC_FILES:= \
+    InputFlinger.cpp \
+    InputDriver.cpp \
+    InputHost.cpp
+
+LOCAL_SHARED_LIBRARIES := \
+    libbinder \
+    libcrypto \
+    libcutils \
+    libinput \
+    liblog \
+    libutils \
+    libhardware
+
+
+# TODO: Move inputflinger to its own process and mark it hidden
+#LOCAL_CFLAGS += -fvisibility=hidden
+
+LOCAL_CFLAGS += -Wno-unused-parameter
+
+LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)
+
+LOCAL_MODULE := libinputflingerhost
+
+include $(BUILD_SHARED_LIBRARY)
+
+########################################################################
+# build input flinger executable
+include $(CLEAR_VARS)
+
+LOCAL_CLANG := true
+
+LOCAL_SRC_FILES:= \
+	main.cpp
+
+LOCAL_SHARED_LIBRARIES := \
+	libbinder \
+	libinputflingerhost \
+	libutils
+
+LOCAL_MODULE := inputflinger
+
+include $(BUILD_EXECUTABLE)
diff --git a/services/inputflinger/host/InputDriver.cpp b/services/inputflinger/host/InputDriver.cpp
new file mode 100644
index 0000000..3beb5ae
--- /dev/null
+++ b/services/inputflinger/host/InputDriver.cpp
@@ -0,0 +1,119 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#define LOG_TAG "InputDriver"
+
+#define LOG_NDEBUG 0
+
+#include "InputDriver.h"
+#include "InputHost.h"
+
+#include <hardware/input.h>
+#include <utils/Log.h>
+#include <utils/String8.h>
+
+#define INDENT2 "    "
+
+namespace android {
+
+static input_host_callbacks_t kCallbacks = {
+    .create_device_identifier = create_device_identifier,
+    .create_device_definition = create_device_definition,
+    .create_input_report_definition = create_input_report_definition,
+    .create_output_report_definition = create_output_report_definition,
+    .input_device_definition_add_report = input_device_definition_add_report,
+    .input_report_definition_add_collection = input_report_definition_add_collection,
+    .input_report_definition_declare_usage_int = input_report_definition_declare_usage_int,
+    .input_report_definition_declare_usages_bool = input_report_definition_declare_usages_bool,
+    .register_device = register_device,
+    .input_allocate_report = input_allocate_report,
+    .input_report_set_usage_int = input_report_set_usage_int,
+    .input_report_set_usage_bool = input_report_set_usage_bool,
+    .report_event = report_event,
+};
+
+InputDriver::InputDriver(const char* name) : mName(String8(name)) {
+    const hw_module_t* module;
+    int err = input_open(&module, name);
+    LOG_ALWAYS_FATAL_IF(err != 0, "Input module %s not found", name);
+    mHal = reinterpret_cast<const input_module_t*>(module);
+}
+
+void InputDriver::init(InputHostInterface* host) {
+    mHal->init(mHal, static_cast<input_host_t*>(host), kCallbacks);
+}
+
+void InputDriver::dump(String8& result) {
+    result.appendFormat(INDENT2 "HAL Input Driver (%s)\n", mName.string());
+}
+
+
+// HAL wrapper functions
+
+input_device_identifier_t* create_device_identifier(input_host_t* host,
+        const char* name, int32_t product_id, int32_t vendor_id,
+        input_bus_t bus, const char* unique_id) {
+    return nullptr;
+}
+
+input_device_definition_t* create_device_definition(input_host_t* host) {
+    return nullptr;
+}
+
+input_report_definition_t* create_input_report_definition(input_host_t* host) {
+    return nullptr;
+}
+
+input_report_definition_t* create_output_report_definition(input_host_t* host) {
+    return nullptr;
+}
+
+void input_device_definition_add_report(input_host_t* host,
+        input_device_definition_t* d, input_report_definition_t* r) { }
+
+void input_report_definition_add_collection(input_host_t* host,
+        input_report_definition_t* report, input_collection_id_t id, int32_t arity) { }
+
+void input_report_definition_declare_usage_int(input_host_t* host,
+        input_report_definition_t* report, input_collection_id_t id,
+        input_usage_t usage, int32_t min, int32_t max, float resolution) { }
+
+void input_report_definition_declare_usages_bool(input_host_t* host,
+        input_report_definition_t* report, input_collection_id_t id,
+        input_usage_t* usage, size_t usage_count) { }
+
+
+input_device_handle_t* register_device(input_host_t* host,
+        input_device_identifier_t* id, input_device_definition_t* d) {
+    return nullptr;
+}
+
+input_report_t* input_allocate_report(input_host_t* host, input_report_definition_t* r) {
+    return nullptr;
+}
+void input_report_set_usage_int(input_host_t* host, input_report_t* r,
+        input_collection_id_t id, input_usage_t usage, int32_t value, int32_t arity_index) { }
+
+void input_report_set_usage_bool(input_host_t* host, input_report_t* r,
+        input_collection_id_t id, input_usage_t usage, bool value, int32_t arity_index) { }
+
+void report_event(input_host_t* host, input_device_handle_t* d, input_report_t* report) { }
+
+
+} // namespace android
diff --git a/services/inputflinger/host/InputDriver.h b/services/inputflinger/host/InputDriver.h
new file mode 100644
index 0000000..7810173
--- /dev/null
+++ b/services/inputflinger/host/InputDriver.h
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INPUT_DRIVER_H
+#define ANDROID_INPUT_DRIVER_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include "InputHost.h"
+
+#include <hardware/input.h>
+#include <utils/RefBase.h>
+#include <utils/String8.h>
+
+namespace android {
+
+class InputHostInterface;
+
+class InputDriverInterface : public virtual RefBase {
+protected:
+    InputDriverInterface() = default;
+    virtual ~InputDriverInterface() = default;
+
+public:
+    virtual void init(InputHostInterface* host) = 0;
+
+    virtual void dump(String8& result) = 0;
+};
+
+class InputDriver : public InputDriverInterface {
+public:
+    InputDriver(const char* name);
+    virtual ~InputDriver() = default;
+
+    virtual void init(InputHostInterface* host) override;
+
+    virtual void dump(String8& result) override;
+
+private:
+    String8 mName;
+    const input_module_t* mHal;
+};
+
+
+extern "C" {
+
+input_device_identifier_t* create_device_identifier(input_host_t* host,
+        const char* name, int32_t product_id, int32_t vendor_id,
+        input_bus_t bus, const char* unique_id);
+
+input_device_definition_t* create_device_definition(input_host_t* host);
+
+input_report_definition_t* create_input_report_definition(input_host_t* host);
+
+input_report_definition_t* create_output_report_definition(input_host_t* host);
+
+void input_device_definition_add_report(input_host_t* host,
+        input_device_definition_t* d, input_report_definition_t* r);
+
+void input_report_definition_add_collection(input_host_t* host,
+        input_report_definition_t* report, input_collection_id_t id, int32_t arity);
+
+void input_report_definition_declare_usage_int(input_host_t* host,
+        input_report_definition_t* report, input_collection_id_t id,
+        input_usage_t usage, int32_t min, int32_t max, float resolution);
+
+void input_report_definition_declare_usages_bool(input_host_t* host,
+        input_report_definition_t* report, input_collection_id_t id,
+        input_usage_t* usage, size_t usage_count);
+
+
+input_device_handle_t* register_device(input_host_t* host,
+        input_device_identifier_t* id, input_device_definition_t* d);
+
+void unregister_device(input_host_t* host, input_device_handle_t* handle);
+
+input_report_t* input_allocate_report(input_host_t* host, input_report_definition_t* r);
+
+void input_report_set_usage_int(input_host_t* host, input_report_t* r,
+        input_collection_id_t id, input_usage_t usage, int32_t value, int32_t arity_index);
+
+void input_report_set_usage_bool(input_host_t* host, input_report_t* r,
+        input_collection_id_t id, input_usage_t usage, bool value, int32_t arity_index);
+
+void report_event(input_host_t* host, input_device_handle_t* d, input_report_t* report);
+
+}
+
+} // namespace android
+#endif // ANDROID_INPUT_DRIVER_H
diff --git a/services/inputflinger/host/InputFlinger.cpp b/services/inputflinger/host/InputFlinger.cpp
new file mode 100644
index 0000000..859c3b8
--- /dev/null
+++ b/services/inputflinger/host/InputFlinger.cpp
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "InputFlinger"
+
+
+#include <stdint.h>
+#include <unistd.h>
+
+#include <sys/types.h>
+
+#include "InputFlinger.h"
+#include "InputDriver.h"
+
+#include <binder/IPCThreadState.h>
+#include <binder/PermissionCache.h>
+#include <hardware/input.h>
+#include <cutils/log.h>
+#include <private/android_filesystem_config.h>
+
+namespace android {
+
+const String16 sAccessInputFlingerPermission("android.permission.ACCESS_INPUT_FLINGER");
+const String16 sDumpPermission("android.permission.DUMP");
+
+
+InputFlinger::InputFlinger() :
+        BnInputFlinger() {
+    ALOGI("InputFlinger is starting");
+    mHost = new InputHost();
+    mHost->registerInputDriver(new InputDriver(INPUT_INSTANCE_EVDEV));
+}
+
+InputFlinger::~InputFlinger() {
+}
+
+status_t InputFlinger::dump(int fd, const Vector<String16>& args) {
+    String8 result;
+    const IPCThreadState* ipc = IPCThreadState::self();
+    const int pid = ipc->getCallingPid();
+    const int uid = ipc->getCallingUid();
+    if ((uid != AID_SHELL)
+            && !PermissionCache::checkPermission(sDumpPermission, pid, uid)) {
+        result.appendFormat("Permission Denial: "
+                "can't dump SurfaceFlinger from pid=%d, uid=%d\n", pid, uid);
+    } else {
+        dumpInternal(result);
+    }
+    write(fd, result.string(), result.size());
+    return OK;
+}
+
+void InputFlinger::dumpInternal(String8& result) {
+    result.append("INPUT FLINGER (dumpsys inputflinger)\n");
+    mHost->dump(result);
+}
+
+}; // namespace android
diff --git a/services/inputflinger/host/InputFlinger.h b/services/inputflinger/host/InputFlinger.h
new file mode 100644
index 0000000..39e69e5
--- /dev/null
+++ b/services/inputflinger/host/InputFlinger.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INPUT_FLINGER_H
+#define ANDROID_INPUT_FLINGER_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include "InputHost.h"
+
+#include <cutils/compiler.h>
+#include <input/IInputFlinger.h>
+#include <utils/String8.h>
+#include <utils/String16.h>
+#include <utils/StrongPointer.h>
+
+namespace android {
+
+class InputFlinger : public BnInputFlinger {
+public:
+    static char const* getServiceName() ANDROID_API {
+        return "inputflinger";
+    }
+
+    InputFlinger() ANDROID_API;
+
+    virtual status_t dump(int fd, const Vector<String16>& args);
+
+private:
+    virtual ~InputFlinger();
+
+    void dumpInternal(String8& result);
+
+    sp<InputHostInterface> mHost;
+};
+
+} // namespace android
+
+#endif // ANDROID_INPUT_FLINGER_H
diff --git a/services/inputflinger/host/InputHost.cpp b/services/inputflinger/host/InputHost.cpp
new file mode 100644
index 0000000..51d3e6b
--- /dev/null
+++ b/services/inputflinger/host/InputHost.cpp
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <vector>
+
+#include "InputDriver.h"
+#include "InputHost.h"
+
+#include <utils/Log.h>
+#include <utils/String8.h>
+
+#define INDENT "  "
+
+namespace android {
+
+void InputHost::registerInputDriver(InputDriverInterface* driver) {
+    LOG_ALWAYS_FATAL_IF(driver == nullptr, "Cannot register a nullptr as an InputDriver!");
+    driver->init(this);
+    mDrivers.push_back(driver);
+}
+
+void InputHost::dump(String8& result) {
+    result.append(INDENT "Input Drivers:\n");
+    for (size_t i = 0; i < mDrivers.size(); i++) {
+        mDrivers[i]->dump(result);
+    }
+}
+
+} // namespace android
diff --git a/services/inputflinger/host/InputHost.h b/services/inputflinger/host/InputHost.h
new file mode 100644
index 0000000..42a66e0
--- /dev/null
+++ b/services/inputflinger/host/InputHost.h
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INPUT_HOST_H
+#define ANDROID_INPUT_HOST_H
+
+#include <vector>
+
+#include <hardware/input.h>
+#include <utils/RefBase.h>
+#include <utils/String8.h>
+#include <utils/StrongPointer.h>
+
+#include "InputDriver.h"
+
+// Declare a concrete type for the HAL
+struct input_host {
+};
+
+namespace android {
+
+class InputDriverInterface;
+
+class InputHostInterface : public input_host_t, public virtual RefBase {
+protected:
+    InputHostInterface() = default;
+    virtual ~InputHostInterface() = default;
+
+public:
+
+    virtual void registerInputDriver(InputDriverInterface* driver) = 0;
+
+    virtual void dump(String8& result) = 0;
+};
+
+class InputHost : public InputHostInterface {
+public:
+    InputHost() = default;
+
+    virtual void registerInputDriver(InputDriverInterface* driver) override;
+
+    virtual void dump(String8& result) override;
+
+private:
+    std::vector<sp<InputDriverInterface>> mDrivers;
+};
+
+} // namespace android
+#endif // ANDRIOD_INPUT_HOST_H
diff --git a/services/inputflinger/host/main.cpp b/services/inputflinger/host/main.cpp
new file mode 100644
index 0000000..0a517cc
--- /dev/null
+++ b/services/inputflinger/host/main.cpp
@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <binder/BinderService.h>
+#include "InputFlinger.h"
+
+using namespace android;
+
+int main(int, char**) {
+    ProcessState::self()->setThreadPoolMaxThreadCount(4);
+    BinderService<InputFlinger>::publishAndJoinThreadPool(true);
+    return 0;
+}
diff --git a/services/inputflinger/tests/Android.mk b/services/inputflinger/tests/Android.mk
index 0742a08..4c43392 100644
--- a/services/inputflinger/tests/Android.mk
+++ b/services/inputflinger/tests/Android.mk
@@ -10,7 +10,6 @@
 shared_libraries := \
     libcutils \
     liblog \
-    libandroidfw \
     libutils \
     libhardware \
     libhardware_legacy \
@@ -24,7 +23,7 @@
     external/skia/include/core
 
 
-module_tags := eng tests
+module_tags := tests
 
 $(foreach file,$(test_src_files), \
     $(eval include $(CLEAR_VARS)) \
diff --git a/services/sensorservice/SensorDevice.cpp b/services/sensorservice/SensorDevice.cpp
index 80845a2..30a244b 100644
--- a/services/sensorservice/SensorDevice.cpp
+++ b/services/sensorservice/SensorDevice.cpp
@@ -85,6 +85,7 @@
     Mutex::Autolock _l(mLock);
     for (size_t i=0 ; i<size_t(count) ; i++) {
         const Info& info = mActivationCount.valueFor(list[i].handle);
+        if (info.batchParams.isEmpty()) continue;
         result.appendFormat("handle=0x%08x, active-count=%zu, batch_period(ms)={ ", list[i].handle,
                             info.batchParams.size());
         for (size_t j = 0; j < info.batchParams.size(); j++) {
@@ -147,8 +148,12 @@
     if (enabled) {
         ALOGD_IF(DEBUG_CONNECTIONS, "enable index=%zd", info.batchParams.indexOfKey(ident));
 
+        if (isClientDisabledLocked(ident)) {
+            return INVALID_OPERATION;
+        }
+
         if (info.batchParams.indexOfKey(ident) >= 0) {
-          if (info.batchParams.size() == 1) {
+          if (info.numActiveClients() == 1) {
               // This is the first connection, we need to activate the underlying h/w sensor.
               actuateHardware = true;
           }
@@ -160,7 +165,7 @@
         ALOGD_IF(DEBUG_CONNECTIONS, "disable index=%zd", info.batchParams.indexOfKey(ident));
 
         if (info.removeBatchParamsForIdent(ident) >= 0) {
-            if (info.batchParams.size() == 0) {
+            if (info.numActiveClients() == 0) {
                 // This is the last connection, we need to de-activate the underlying h/w sensor.
                 actuateHardware = true;
             } else {
@@ -181,10 +186,15 @@
         } else {
             // sensor wasn't enabled for this ident
         }
+
+        if (isClientDisabledLocked(ident)) {
+            return NO_ERROR;
+        }
     }
 
     if (actuateHardware) {
-        ALOGD_IF(DEBUG_CONNECTIONS, "\t>>> actuating h/w activate handle=%d enabled=%d", handle, enabled);
+        ALOGD_IF(DEBUG_CONNECTIONS, "\t>>> actuating h/w activate handle=%d enabled=%d", handle,
+                 enabled);
         err = mSensorDevice->activate(
                 reinterpret_cast<struct sensors_poll_device_t *> (mSensorDevice), handle, enabled);
         ALOGE_IF(err, "Error %s sensor %d (%s)", enabled ? "activating" : "disabling", handle,
@@ -197,7 +207,7 @@
     }
 
     // On older devices which do not support batch, call setDelay().
-    if (getHalDeviceVersion() < SENSORS_DEVICE_API_VERSION_1_1 && info.batchParams.size() > 0) {
+    if (getHalDeviceVersion() < SENSORS_DEVICE_API_VERSION_1_1 && info.numActiveClients() > 0) {
         ALOGD_IF(DEBUG_CONNECTIONS, "\t>>> actuating h/w setDelay %d %" PRId64, handle,
                  info.bestBatchParams.batchDelay);
         mSensorDevice->setDelay(
@@ -279,6 +289,7 @@
         samplingPeriodNs = MINIMUM_EVENTS_PERIOD;
     }
     Mutex::Autolock _l(mLock);
+    if (isClientDisabledLocked(ident)) return INVALID_OPERATION;
     Info& info( mActivationCount.editValueFor(handle) );
     // If the underlying sensor is NOT in continuous mode, setDelay() should return an error.
     // Calling setDelay() in batch mode is an invalid operation.
@@ -298,7 +309,6 @@
 
 int SensorDevice::getHalDeviceVersion() const {
     if (!mSensorDevice) return -1;
-
     return mSensorDevice->common.version;
 }
 
@@ -306,12 +316,89 @@
     if (getHalDeviceVersion() < SENSORS_DEVICE_API_VERSION_1_1) {
         return INVALID_OPERATION;
     }
+    if (isClientDisabled(ident)) return INVALID_OPERATION;
     ALOGD_IF(DEBUG_CONNECTIONS, "\t>>> actuating h/w flush %d", handle);
     return mSensorDevice->flush(mSensorDevice, handle);
 }
 
+bool SensorDevice::isClientDisabled(void* ident) {
+    Mutex::Autolock _l(mLock);
+    return isClientDisabledLocked(ident);
+}
+
+bool SensorDevice::isClientDisabledLocked(void* ident) {
+    return mDisabledClients.indexOf(ident) >= 0;
+}
+
+void SensorDevice::enableAllSensors() {
+    Mutex::Autolock _l(mLock);
+    mDisabledClients.clear();
+    const int halVersion = getHalDeviceVersion();
+    for (size_t i = 0; i< mActivationCount.size(); ++i) {
+        Info& info = mActivationCount.editValueAt(i);
+        if (info.batchParams.isEmpty()) continue;
+        info.selectBatchParams();
+        const int sensor_handle = mActivationCount.keyAt(i);
+        ALOGD_IF(DEBUG_CONNECTIONS, "\t>> reenable actuating h/w sensor enable handle=%d ",
+                   sensor_handle);
+        status_t err(NO_ERROR);
+        if (halVersion > SENSORS_DEVICE_API_VERSION_1_0) {
+            err = mSensorDevice->batch(mSensorDevice, sensor_handle,
+                 info.bestBatchParams.flags, info.bestBatchParams.batchDelay,
+                 info.bestBatchParams.batchTimeout);
+            ALOGE_IF(err, "Error calling batch on sensor %d (%s)", sensor_handle, strerror(-err));
+        }
+
+        if (err == NO_ERROR) {
+            err = mSensorDevice->activate(
+                    reinterpret_cast<struct sensors_poll_device_t *>(mSensorDevice),
+                    sensor_handle, 1);
+            ALOGE_IF(err, "Error activating sensor %d (%s)", sensor_handle, strerror(-err));
+        }
+
+        if (halVersion <= SENSORS_DEVICE_API_VERSION_1_0) {
+             err = mSensorDevice->setDelay(
+                    reinterpret_cast<struct sensors_poll_device_t *>(mSensorDevice),
+                    sensor_handle, info.bestBatchParams.batchDelay);
+             ALOGE_IF(err, "Error calling setDelay sensor %d (%s)", sensor_handle, strerror(-err));
+        }
+    }
+}
+
+void SensorDevice::disableAllSensors() {
+    Mutex::Autolock _l(mLock);
+    for (size_t i = 0; i< mActivationCount.size(); ++i) {
+        const Info& info = mActivationCount.valueAt(i);
+        // Check if this sensor has been activated previously and disable it.
+        if (info.batchParams.size() > 0) {
+           const int sensor_handle = mActivationCount.keyAt(i);
+           ALOGD_IF(DEBUG_CONNECTIONS, "\t>> actuating h/w sensor disable handle=%d ",
+                   sensor_handle);
+           mSensorDevice->activate(
+                   reinterpret_cast<struct sensors_poll_device_t *> (mSensorDevice),
+                   sensor_handle, 0);
+           // Add all the connections that were registered for this sensor to the disabled
+           // clients list.
+           for (int j = 0; j < info.batchParams.size(); ++j) {
+               mDisabledClients.add(info.batchParams.keyAt(j));
+           }
+        }
+    }
+}
+
 // ---------------------------------------------------------------------------
 
+int SensorDevice::Info::numActiveClients() {
+    SensorDevice& device(SensorDevice::getInstance());
+    int num = 0;
+    for (size_t i = 0; i < batchParams.size(); ++i) {
+        if (!device.isClientDisabledLocked(batchParams.keyAt(i))) {
+            ++num;
+        }
+    }
+    return num;
+}
+
 status_t SensorDevice::Info::setBatchParamsForIdent(void* ident, int flags,
                                                     int64_t samplingPeriodNs,
                                                     int64_t maxBatchReportLatencyNs) {
@@ -329,19 +416,16 @@
 }
 
 void SensorDevice::Info::selectBatchParams() {
-    BatchParams bestParams(-1, -1, -1);
+    BatchParams bestParams(0, -1, -1);
+    SensorDevice& device(SensorDevice::getInstance());
 
-    if (batchParams.size() > 0) {
-        BatchParams params = batchParams.valueAt(0);
-        bestParams = params;
-    }
-
-    for (size_t i = 1; i < batchParams.size(); ++i) {
+    for (size_t i = 0; i < batchParams.size(); ++i) {
+        if (device.isClientDisabledLocked(batchParams.keyAt(i))) continue;
         BatchParams params = batchParams.valueAt(i);
-        if (params.batchDelay < bestParams.batchDelay) {
+        if (bestParams.batchDelay == -1 || params.batchDelay < bestParams.batchDelay) {
             bestParams.batchDelay = params.batchDelay;
         }
-        if (params.batchTimeout < bestParams.batchTimeout) {
+        if (bestParams.batchTimeout == -1 || params.batchTimeout < bestParams.batchTimeout) {
             bestParams.batchTimeout = params.batchTimeout;
         }
     }
diff --git a/services/sensorservice/SensorDevice.h b/services/sensorservice/SensorDevice.h
index 761b48c..cf33a59 100644
--- a/services/sensorservice/SensorDevice.h
+++ b/services/sensorservice/SensorDevice.h
@@ -42,6 +42,7 @@
     // Struct to store all the parameters(samplingPeriod, maxBatchReportLatency and flags) from
     // batch call. For continous mode clients, maxBatchReportLatency is set to zero.
     struct BatchParams {
+      // TODO: Get rid of flags parameter everywhere.
       int flags;
       nsecs_t batchDelay, batchTimeout;
       BatchParams() : flags(0), batchDelay(0), batchTimeout(0) {}
@@ -65,7 +66,7 @@
         // requested by the client.
         KeyedVector<void*, BatchParams> batchParams;
 
-        Info() : bestBatchParams(-1, -1, -1) {}
+        Info() : bestBatchParams(0, -1, -1) {}
         // Sets batch parameters for this ident. Returns error if this ident is not already present
         // in the KeyedVector above.
         status_t setBatchParamsForIdent(void* ident, int flags, int64_t samplingPeriodNs,
@@ -75,10 +76,17 @@
         // Removes batchParams for an ident and re-computes bestBatchParams. Returns the index of
         // the removed ident. If index >=0, ident is present and successfully removed.
         ssize_t removeBatchParamsForIdent(void* ident);
+
+        int numActiveClients();
     };
     DefaultKeyedVector<int, Info> mActivationCount;
 
+    // Use this vector to determine which client is activated or deactivated.
+    SortedVector<void *> mDisabledClients;
     SensorDevice();
+
+    bool isClientDisabled(void* ident);
+    bool isClientDisabledLocked(void* ident);
 public:
     ssize_t getSensorList(sensor_t const** list);
     status_t initCheck() const;
@@ -90,6 +98,8 @@
     // Call batch with timeout zero instead of calling setDelay() for newer devices.
     status_t setDelay(void* ident, int handle, int64_t ns);
     status_t flush(void* ident, int handle);
+    void disableAllSensors();
+    void enableAllSensors();
     void autoDisable(void *ident, int handle);
     void dump(String8& result);
 };
diff --git a/services/sensorservice/SensorService.cpp b/services/sensorservice/SensorService.cpp
index a857366..2336d88 100644
--- a/services/sensorservice/SensorService.cpp
+++ b/services/sensorservice/SensorService.cpp
@@ -190,6 +190,7 @@
             mSensorEventBuffer = new sensors_event_t[minBufferSize];
             mSensorEventScratch = new sensors_event_t[minBufferSize];
             mMapFlushEventsToConnections = new SensorEventConnection const * [minBufferSize];
+            mMode = NORMAL;
 
             mAckReceiver = new SensorEventAckReceiver(this);
             mAckReceiver->run("SensorEventAckReceiver", PRIORITY_URGENT_DISPLAY);
@@ -230,7 +231,7 @@
 
 static const String16 sDump("android.permission.DUMP");
 
-status_t SensorService::dump(int fd, const Vector<String16>& /*args*/)
+status_t SensorService::dump(int fd, const Vector<String16>& args)
 {
     String8 result;
     if (!PermissionCache::checkCallingPermission(sDump)) {
@@ -238,6 +239,26 @@
                 "can't dump SensorService from pid=%d, uid=%d\n",
                 IPCThreadState::self()->getCallingPid(),
                 IPCThreadState::self()->getCallingUid());
+    } else if (args.size() > 0) {
+        if (args.size() > 1) {
+           return INVALID_OPERATION;
+        }
+        Mutex::Autolock _l(mLock);
+        SensorDevice& dev(SensorDevice::getInstance());
+        if (args[0] == String16("restrict") && mMode == NORMAL) {
+            mMode = RESTRICTED;
+            dev.disableAllSensors();
+            // Clear all pending flush connections for all active sensors. If one of the active
+            // connections has called flush() and the underlying sensor has been disabled before a
+            // flush complete event is returned, we need to remove the connection from this queue.
+            for (size_t i=0 ; i< mActiveSensors.size(); ++i) {
+                mActiveSensors.valueAt(i)->clearAllPendingFlushConnections();
+            }
+        } else if (args[0] == String16("enable") && mMode == RESTRICTED) {
+            mMode = NORMAL;
+            dev.enableAllSensors();
+        }
+        return status_t(NO_ERROR);
     } else {
         Mutex::Autolock _l(mLock);
         result.append("Sensor List:\n");
@@ -341,6 +362,17 @@
         result.appendFormat("Socket Buffer size = %d events\n",
                             mSocketBufferSize/sizeof(sensors_event_t));
         result.appendFormat("WakeLock Status: %s \n", mWakeLockAcquired ? "acquired" : "not held");
+        result.appendFormat("Mode :");
+        switch(mMode) {
+           case NORMAL:
+               result.appendFormat(" NORMAL\n");
+               break;
+           case RESTRICTED:
+               result.appendFormat(" RESTRICTED\n");
+               break;
+           case DATA_INJECTION:
+               result.appendFormat(" DATA_INJECTION\n");
+        }
         result.appendFormat("%zd active connections\n", mActiveConnections.size());
 
         for (size_t i=0 ; i < mActiveConnections.size() ; i++) {
@@ -554,7 +586,6 @@
     }
 }
 
-
 bool SensorService::isWakeLockAcquired() {
     Mutex::Autolock _l(mLock);
     return mWakeLockAcquired;
@@ -630,7 +661,6 @@
     return sensor != NULL && sensor->getSensor().isWakeUpSensor();
 }
 
-
 SensorService::SensorRecord * SensorService::getSensorRecord(int handle) {
      return mActiveSensors.valueFor(handle);
 }
@@ -655,10 +685,10 @@
     return accessibleSensorList;
 }
 
-sp<ISensorEventConnection> SensorService::createSensorEventConnection()
+sp<ISensorEventConnection> SensorService::createSensorEventConnection(const String8& packageName)
 {
     uid_t uid = IPCThreadState::self()->getCallingUid();
-    sp<SensorEventConnection> result(new SensorEventConnection(this, uid));
+    sp<SensorEventConnection> result(new SensorEventConnection(this, uid, packageName));
     return result;
 }
 
@@ -708,7 +738,7 @@
 }
 
 status_t SensorService::enable(const sp<SensorEventConnection>& connection,
-        int handle, nsecs_t samplingPeriodNs,  nsecs_t maxBatchReportLatencyNs, int reservedFlags)
+        int handle, nsecs_t samplingPeriodNs, nsecs_t maxBatchReportLatencyNs, int reservedFlags)
 {
     if (mInitCheck != NO_ERROR)
         return mInitCheck;
@@ -723,6 +753,10 @@
     }
 
     Mutex::Autolock _l(mLock);
+    if (mMode == RESTRICTED && !isWhiteListedPackage(connection->getPackageName())) {
+        return INVALID_OPERATION;
+    }
+
     SensorRecord* rec = mActiveSensors.valueFor(handle);
     if (rec == 0) {
         rec = new SensorRecord(connection);
@@ -773,7 +807,7 @@
                                 "rate=%" PRId64 " timeout== %" PRId64"",
              handle, reservedFlags, samplingPeriodNs, maxBatchReportLatencyNs);
 
-    status_t err = sensor->batch(connection.get(), handle, reservedFlags, samplingPeriodNs,
+    status_t err = sensor->batch(connection.get(), handle, 0, samplingPeriodNs,
                                  maxBatchReportLatencyNs);
 
     // Call flush() before calling activate() on the sensor. Wait for a first flush complete
@@ -969,6 +1003,11 @@
     }
 }
 
+bool SensorService::isWhiteListedPackage(const String8& packageName) {
+    // TODO: Come up with a list of packages.
+    return (packageName.find(".cts.") != -1);
+}
+
 // ---------------------------------------------------------------------------
 SensorService::SensorRecord::SensorRecord(
         const sp<SensorEventConnection>& connection)
@@ -1025,12 +1064,16 @@
     return NULL;
 }
 
+void SensorService::SensorRecord::clearAllPendingFlushConnections() {
+    mPendingFlushConnections.clear();
+}
+
 // ---------------------------------------------------------------------------
 
 SensorService::SensorEventConnection::SensorEventConnection(
-        const sp<SensorService>& service, uid_t uid)
+        const sp<SensorService>& service, uid_t uid, String8 packageName)
     : mService(service), mUid(uid), mWakeLockRefCount(0), mHasLooperCallbacks(false),
-      mDead(false), mEventCache(NULL), mCacheSize(0), mMaxCacheSize(0) {
+      mDead(false), mEventCache(NULL), mCacheSize(0), mMaxCacheSize(0), mPackageName(packageName) {
     mChannel = new BitTube(mService->mSocketBufferSize);
 #if DEBUG_CONNECTIONS
     mEventsReceived = mEventsSentFromCache = mEventsSent = 0;
@@ -1062,8 +1105,8 @@
 
 void SensorService::SensorEventConnection::dump(String8& result) {
     Mutex::Autolock _l(mConnectionLock);
-    result.appendFormat("\t WakeLockRefCount %d | uid %d | cache size %d | max cache size %d\n",
-            mWakeLockRefCount, mUid, mCacheSize, mMaxCacheSize);
+    result.appendFormat("\t%s | WakeLockRefCount %d | uid %d | cache size %d | max cache size %d\n",
+            mPackageName.string(), mWakeLockRefCount, mUid, mCacheSize, mMaxCacheSize);
     for (size_t i = 0; i < mSensorInfo.size(); ++i) {
         const FlushInfo& flushInfo = mSensorInfo.valueAt(i);
         result.appendFormat("\t %s 0x%08x | status: %s | pending flush events %d \n",
@@ -1126,6 +1169,10 @@
     return false;
 }
 
+String8 SensorService::SensorEventConnection::getPackageName() const {
+    return mPackageName;
+}
+
 void SensorService::SensorEventConnection::setFirstFlushPending(int32_t handle,
                                 bool value) {
     Mutex::Autolock _l(mConnectionLock);
diff --git a/services/sensorservice/SensorService.h b/services/sensorservice/SensorService.h
index e9ca3a5..b31eaf3 100644
--- a/services/sensorservice/SensorService.h
+++ b/services/sensorservice/SensorService.h
@@ -27,6 +27,7 @@
 #include <utils/AndroidThreads.h>
 #include <utils/RefBase.h>
 #include <utils/Looper.h>
+#include <utils/String8.h>
 
 #include <binder/BinderService.h>
 
@@ -65,6 +66,27 @@
 {
     friend class BinderService<SensorService>;
 
+    enum Mode {
+       // The regular operating mode where any application can register/unregister/call flush on
+       // sensors.
+       NORMAL = 0,
+       // This mode is used only for testing sensors. Each sensor can be tested in isolation with
+       // the required sampling_rate and maxReportLatency parameters without having to think about
+       // the data rates requested by other applications. End user devices are always expected to be
+       // in NORMAL mode. When this mode is first activated, all active sensors from all connections
+       // are disabled. Calling flush() will return an error. In this mode, only the requests from
+       // selected apps whose package names are whitelisted are allowed (typically CTS apps).  Only
+       // these apps can register/unregister/call flush() on sensors.  If SensorService switches to
+       // NORMAL mode again, all sensors that were previously registered to are activated with the
+       // corresponding paramaters if the application hasn't unregistered for sensors in the mean
+       // time.
+       // NOTE: Non whitelisted app whose sensors were previously deactivated may still receive
+       // events if a whitelisted app requests data from the same sensor.
+       RESTRICTED,
+       // TODO: This mode hasn't been implemented yet.
+       DATA_INJECTION
+    };
+
     static const char* WAKE_LOCK_NAME;
 
     static char const* getServiceName() ANDROID_API { return "sensorservice"; }
@@ -78,7 +100,7 @@
 
     // ISensorServer interface
     virtual Vector<Sensor> getSensorList();
-    virtual sp<ISensorEventConnection> createSensorEventConnection();
+    virtual sp<ISensorEventConnection> createSensorEventConnection(const String8& packageName);
     virtual status_t dump(int fd, const Vector<String16>& args);
 
     class SensorEventConnection : public BnSensorEventConnection, public LooperCallback {
@@ -133,7 +155,6 @@
         // connection FD may be added to the Looper. The flags to set are determined by the internal
         // state of the connection. FDs are added to the looper when wake-up sensors are registered
         // (to poll for acknowledgements) and when write fails on the socket when there are too many
-        // events (to poll when the FD is available for writing). FDs are removed when there is an
         // error and the other end hangs up or when this client unregisters for this connection.
         void updateLooperRegistration(const sp<Looper>& looper);
         void updateLooperRegistrationLocked(const sp<Looper>& looper);
@@ -169,6 +190,7 @@
         KeyedVector<int, FlushInfo> mSensorInfo;
         sensors_event_t *mEventCache;
         int mCacheSize, mMaxCacheSize;
+        String8 mPackageName;
 
 #if DEBUG_CONNECTIONS
         int mEventsReceived, mEventsSent, mEventsSentFromCache;
@@ -176,7 +198,7 @@
 #endif
 
     public:
-        SensorEventConnection(const sp<SensorService>& service, uid_t uid);
+        SensorEventConnection(const sp<SensorService>& service, uid_t uid, String8 packageName);
 
         status_t sendEvents(sensors_event_t const* buffer, size_t count,
                 sensors_event_t* scratch,
@@ -190,6 +212,7 @@
         void dump(String8& result);
         bool needsWakeLock();
         void resetWakeLockRefCount();
+        String8 getPackageName() const;
 
         uid_t getUid() const { return mUid; }
     };
@@ -208,6 +231,7 @@
         void addPendingFlushConnection(const sp<SensorEventConnection>& connection);
         void removeFirstPendingFlushConnection();
         SensorEventConnection * getFirstPendingFlushConnection();
+        void clearAllPendingFlushConnections();
     };
 
     class SensorEventAckReceiver : public Thread {
@@ -261,6 +285,11 @@
     // to the output vector.
     void populateActiveConnections(SortedVector< sp<SensorEventConnection> >* activeConnections);
 
+    // If SensorService is operating in RESTRICTED mode, only select whitelisted packages are
+    // allowed to register for or call flush on sensors. Typically only cts test packages are
+    // allowed.
+    bool isWhiteListedPackage(const String8& packageName);
+
     // constants
     Vector<Sensor> mSensorList;
     Vector<Sensor> mUserSensorListDebug;
@@ -282,6 +311,7 @@
     bool mWakeLockAcquired;
     sensors_event_t *mSensorEventBuffer, *mSensorEventScratch;
     SensorEventConnection const **mMapFlushEventsToConnections;
+    Mode mMode;
 
     // The size of this vector is constant, only the items are mutable
     KeyedVector<int32_t, sensors_event_t> mLastEventSeen;
diff --git a/services/surfaceflinger/Client.cpp b/services/surfaceflinger/Client.cpp
index f7d32d0..49389e0 100644
--- a/services/surfaceflinger/Client.cpp
+++ b/services/surfaceflinger/Client.cpp
@@ -93,7 +93,7 @@
      const int pid = ipc->getCallingPid();
      const int uid = ipc->getCallingUid();
      const int self_pid = getpid();
-     if (CC_UNLIKELY(pid != self_pid && uid != AID_GRAPHICS && uid != 0)) {
+     if (CC_UNLIKELY(pid != self_pid && uid != AID_GRAPHICS && uid != AID_SYSTEM && uid != 0)) {
          // we're called from a different process, do the real check
          if (!PermissionCache::checkCallingPermission(sAccessSurfaceFlinger))
          {
diff --git a/services/surfaceflinger/DdmConnection.cpp b/services/surfaceflinger/DdmConnection.cpp
index a000a84..659c2c8 100644
--- a/services/surfaceflinger/DdmConnection.cpp
+++ b/services/surfaceflinger/DdmConnection.cpp
@@ -66,7 +66,7 @@
     jint (*registerNatives)(JNIEnv* env, jclass clazz);
     registerNatives = reinterpret_cast<decltype(registerNatives)>(
             dlsym(libandroid_runtime_dso,
-                  "Java_com_android_internal_util_WithFramework_registerNatives"));
+                "Java_com_android_internal_util_WithFramework_registerNatives"));
     ALOGE_IF(!registerNatives, "DdmConnection: %s", dlerror());
 
     if (!JNI_CreateJavaVM || !registerNatives) {
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index df4ac2e..1419557 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -149,7 +149,11 @@
         mPrimaryHWVsyncEnabled(false),
         mHWVsyncAvailable(false),
         mDaltonize(false),
-        mHasColorMatrix(false)
+        mHasColorMatrix(false),
+        mHasPoweredOff(false),
+        mFrameBuckets(),
+        mTotalTime(0),
+        mLastSwapTime(0)
 {
     ALOGI("SurfaceFlinger is starting");
 
@@ -997,8 +1001,8 @@
         }
     }
 
+    const sp<const DisplayDevice> hw(getDefaultDisplayDevice());
     if (kIgnorePresentFences) {
-        const sp<const DisplayDevice> hw(getDefaultDisplayDevice());
         if (hw->isDisplayOn()) {
             enableHardwareVsync();
         }
@@ -1017,6 +1021,26 @@
         }
         mAnimFrameTracker.advanceFrame();
     }
+
+    if (hw->getPowerMode() == HWC_POWER_MODE_OFF) {
+        return;
+    }
+
+    nsecs_t currentTime = systemTime();
+    if (mHasPoweredOff) {
+        mHasPoweredOff = false;
+    } else {
+        nsecs_t period = mPrimaryDispSync.getPeriod();
+        nsecs_t elapsedTime = currentTime - mLastSwapTime;
+        size_t numPeriods = static_cast<size_t>(elapsedTime / period);
+        if (numPeriods < NUM_BUCKETS - 1) {
+            mFrameBuckets[numPeriods] += elapsedTime;
+        } else {
+            mFrameBuckets[NUM_BUCKETS - 1] += elapsedTime;
+        }
+        mTotalTime += elapsedTime;
+    }
+    mLastSwapTime = currentTime;
 }
 
 void SurfaceFlinger::rebuildLayerStacks() {
@@ -2398,6 +2422,7 @@
         }
 
         mVisibleRegionsDirty = true;
+        mHasPoweredOff = true;
         repaintEverything();
     } else if (mode == HWC_POWER_MODE_OFF) {
         if (type == DisplayDevice::DISPLAY_PRIMARY) {
@@ -2498,6 +2523,13 @@
                 mPrimaryDispSync.dump(result);
                 dumpAll = false;
             }
+
+            if ((index < numArgs) &&
+                    (args[index] == String16("--static-screen"))) {
+                index++;
+                dumpStaticScreenStats(result);
+                dumpAll = false;
+            }
         }
 
         if (dumpAll) {
@@ -2601,6 +2633,23 @@
     result.append(config);
 }
 
+void SurfaceFlinger::dumpStaticScreenStats(String8& result) const
+{
+    result.appendFormat("Static screen stats:\n");
+    for (size_t b = 0; b < NUM_BUCKETS - 1; ++b) {
+        float bucketTimeSec = mFrameBuckets[b] / 1e9;
+        float percent = 100.0f *
+                static_cast<float>(mFrameBuckets[b]) / mTotalTime;
+        result.appendFormat("  < %zd frames: %.3f s (%.1f%%)\n",
+                b + 1, bucketTimeSec, percent);
+    }
+    float bucketTimeSec = mFrameBuckets[NUM_BUCKETS - 1] / 1e9;
+    float percent = 100.0f *
+            static_cast<float>(mFrameBuckets[NUM_BUCKETS - 1]) / mTotalTime;
+    result.appendFormat("  %zd+ frames: %.3f s (%.1f%%)\n",
+            NUM_BUCKETS - 1, bucketTimeSec, percent);
+}
+
 void SurfaceFlinger::dumpAllLocked(const Vector<String16>& args, size_t& index,
         String8& result) const
 {
@@ -2647,6 +2696,11 @@
         mHwc->getRefreshPeriod(HWC_DISPLAY_PRIMARY));
     result.append("\n");
 
+    // Dump static screen stats
+    result.append("\n");
+    dumpStaticScreenStats(result);
+    result.append("\n");
+
     /*
      * Dump the visible layer list
      */
@@ -2794,7 +2848,7 @@
             IPCThreadState* ipc = IPCThreadState::self();
             const int pid = ipc->getCallingPid();
             const int uid = ipc->getCallingUid();
-            if ((uid != AID_GRAPHICS) &&
+            if ((uid != AID_GRAPHICS && uid != AID_SYSTEM) &&
                     !PermissionCache::checkPermission(sAccessSurfaceFlinger, pid, uid)) {
                 ALOGE("Permission Denial: "
                         "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid);
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index a06d1be..d2654d4 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -416,6 +416,8 @@
 
     void logFrameStats();
 
+    void dumpStaticScreenStats(String8& result) const;
+
     /* ------------------------------------------------------------------------
      * Attributes
      */
@@ -494,6 +496,13 @@
 
     mat4 mColorMatrix;
     bool mHasColorMatrix;
+
+    // Static screen stats
+    bool mHasPoweredOff;
+    static const size_t NUM_BUCKETS = 8; // < 1-7, 7+
+    nsecs_t mFrameBuckets[NUM_BUCKETS];
+    nsecs_t mTotalTime;
+    nsecs_t mLastSwapTime;
 };
 
 }; // namespace android