diff --git a/services/inputflinger/include/EventHub.h b/services/inputflinger/include/EventHub.h
new file mode 100644
index 0000000..e2c7e82
--- /dev/null
+++ b/services/inputflinger/include/EventHub.h
@@ -0,0 +1,470 @@
+/*
+ * Copyright (C) 2005 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 _RUNTIME_EVENT_HUB_H
+#define _RUNTIME_EVENT_HUB_H
+
+#include <vector>
+
+#include <input/Input.h>
+#include <input/InputDevice.h>
+#include <input/Keyboard.h>
+#include <input/KeyLayoutMap.h>
+#include <input/KeyCharacterMap.h>
+#include <input/VirtualKeyMap.h>
+#include <utils/Mutex.h>
+#include <utils/Log.h>
+#include <utils/List.h>
+#include <utils/Errors.h>
+#include <utils/PropertyMap.h>
+#include <utils/KeyedVector.h>
+#include <utils/BitSet.h>
+
+#include <linux/input.h>
+#include <sys/epoll.h>
+
+/* Convenience constants. */
+
+#define BTN_FIRST 0x100  // first button code
+#define BTN_LAST 0x15f   // last button code
+
+namespace android {
+
+enum {
+    // Device id of a special "virtual" keyboard that is always present.
+    VIRTUAL_KEYBOARD_ID = -1,
+    // Device id of the "built-in" keyboard if there is one.
+    BUILT_IN_KEYBOARD_ID = 0,
+};
+
+/*
+ * A raw event as retrieved from the EventHub.
+ */
+struct RawEvent {
+    nsecs_t when;
+    int32_t deviceId;
+    int32_t type;
+    int32_t code;
+    int32_t value;
+};
+
+/* Describes an absolute axis. */
+struct RawAbsoluteAxisInfo {
+    bool valid; // true if the information is valid, false otherwise
+
+    int32_t minValue;  // minimum value
+    int32_t maxValue;  // maximum value
+    int32_t flat;      // center flat position, eg. flat == 8 means center is between -8 and 8
+    int32_t fuzz;      // error tolerance, eg. fuzz == 4 means value is +/- 4 due to noise
+    int32_t resolution; // resolution in units per mm or radians per mm
+
+    inline void clear() {
+        valid = false;
+        minValue = 0;
+        maxValue = 0;
+        flat = 0;
+        fuzz = 0;
+        resolution = 0;
+    }
+};
+
+/*
+ * Input device classes.
+ */
+enum {
+    /* The input device is a keyboard or has buttons. */
+    INPUT_DEVICE_CLASS_KEYBOARD      = 0x00000001,
+
+    /* The input device is an alpha-numeric keyboard (not just a dial pad). */
+    INPUT_DEVICE_CLASS_ALPHAKEY      = 0x00000002,
+
+    /* The input device is a touchscreen or a touchpad (either single-touch or multi-touch). */
+    INPUT_DEVICE_CLASS_TOUCH         = 0x00000004,
+
+    /* The input device is a cursor device such as a trackball or mouse. */
+    INPUT_DEVICE_CLASS_CURSOR        = 0x00000008,
+
+    /* The input device is a multi-touch touchscreen. */
+    INPUT_DEVICE_CLASS_TOUCH_MT      = 0x00000010,
+
+    /* The input device is a directional pad (implies keyboard, has DPAD keys). */
+    INPUT_DEVICE_CLASS_DPAD          = 0x00000020,
+
+    /* The input device is a gamepad (implies keyboard, has BUTTON keys). */
+    INPUT_DEVICE_CLASS_GAMEPAD       = 0x00000040,
+
+    /* The input device has switches. */
+    INPUT_DEVICE_CLASS_SWITCH        = 0x00000080,
+
+    /* The input device is a joystick (implies gamepad, has joystick absolute axes). */
+    INPUT_DEVICE_CLASS_JOYSTICK      = 0x00000100,
+
+    /* 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 an external stylus (has data we want to fuse with touch data). */
+    INPUT_DEVICE_CLASS_EXTERNAL_STYLUS = 0x00000800,
+
+    /* The input device has a rotary encoder */
+    INPUT_DEVICE_CLASS_ROTARY_ENCODER = 0x00001000,
+
+    /* The input device is virtual (not a real device, not part of UI configuration). */
+    INPUT_DEVICE_CLASS_VIRTUAL       = 0x40000000,
+
+    /* The input device is external (not built-in). */
+    INPUT_DEVICE_CLASS_EXTERNAL      = 0x80000000,
+};
+
+/*
+ * Gets the class that owns an axis, in cases where multiple classes might claim
+ * the same axis for different purposes.
+ */
+extern uint32_t getAbsAxisUsage(int32_t axis, uint32_t deviceClasses);
+
+/*
+ * Grand Central Station for events.
+ *
+ * The event hub aggregates input events received across all known input
+ * devices on the system, including devices that may be emulated by the simulator
+ * environment.  In addition, the event hub generates fake input events to indicate
+ * when devices are added or removed.
+ *
+ * The event hub provides a stream of input events (via the getEvent function).
+ * It also supports querying the current actual state of input devices such as identifying
+ * which keys are currently down.  Finally, the event hub keeps track of the capabilities of
+ * individual input devices, such as their class and the set of key codes that they support.
+ */
+class EventHubInterface : public virtual RefBase {
+protected:
+    EventHubInterface() { }
+    virtual ~EventHubInterface() { }
+
+public:
+    // Synthetic raw event type codes produced when devices are added or removed.
+    enum {
+        // Sent when a device is added.
+        DEVICE_ADDED = 0x10000000,
+        // Sent when a device is removed.
+        DEVICE_REMOVED = 0x20000000,
+        // Sent when all added/removed devices from the most recent scan have been reported.
+        // This event is always sent at least once.
+        FINISHED_DEVICE_SCAN = 0x30000000,
+
+        FIRST_SYNTHETIC_EVENT = DEVICE_ADDED,
+    };
+
+    virtual uint32_t getDeviceClasses(int32_t deviceId) const = 0;
+
+    virtual InputDeviceIdentifier getDeviceIdentifier(int32_t deviceId) const = 0;
+
+    virtual int32_t getDeviceControllerNumber(int32_t deviceId) const = 0;
+
+    virtual void getConfiguration(int32_t deviceId, PropertyMap* outConfiguration) const = 0;
+
+    virtual status_t getAbsoluteAxisInfo(int32_t deviceId, int axis,
+            RawAbsoluteAxisInfo* outAxisInfo) const = 0;
+
+    virtual bool hasRelativeAxis(int32_t deviceId, int axis) const = 0;
+
+    virtual bool hasInputProperty(int32_t deviceId, int property) const = 0;
+
+    virtual status_t mapKey(int32_t deviceId,
+            int32_t scanCode, int32_t usageCode, int32_t metaState,
+            int32_t* outKeycode, int32_t *outMetaState, uint32_t* outFlags) const = 0;
+
+    virtual status_t mapAxis(int32_t deviceId, int32_t scanCode,
+            AxisInfo* outAxisInfo) const = 0;
+
+    // Sets devices that are excluded from opening.
+    // This can be used to ignore input devices for sensors.
+    virtual void setExcludedDevices(const std::vector<std::string>& devices) = 0;
+
+    /*
+     * Wait for events to become available and returns them.
+     * After returning, the EventHub holds onto a wake lock until the next call to getEvent.
+     * This ensures that the device will not go to sleep while the event is being processed.
+     * If the device needs to remain awake longer than that, then the caller is responsible
+     * for taking care of it (say, by poking the power manager user activity timer).
+     *
+     * The timeout is advisory only.  If the device is asleep, it will not wake just to
+     * service the timeout.
+     *
+     * Returns the number of events obtained, or 0 if the timeout expired.
+     */
+    virtual size_t getEvents(int timeoutMillis, RawEvent* buffer, size_t bufferSize) = 0;
+
+    /*
+     * Query current input state.
+     */
+    virtual int32_t getScanCodeState(int32_t deviceId, int32_t scanCode) const = 0;
+    virtual int32_t getKeyCodeState(int32_t deviceId, int32_t keyCode) const = 0;
+    virtual int32_t getSwitchState(int32_t deviceId, int32_t sw) const = 0;
+    virtual status_t getAbsoluteAxisValue(int32_t deviceId, int32_t axis,
+            int32_t* outValue) const = 0;
+
+    /*
+     * Examine key input devices for specific framework keycode support
+     */
+    virtual bool markSupportedKeyCodes(int32_t deviceId, size_t numCodes, const int32_t* keyCodes,
+            uint8_t* outFlags) const = 0;
+
+    virtual bool hasScanCode(int32_t deviceId, int32_t scanCode) const = 0;
+
+    /* LED related functions expect Android LED constants, not scan codes or HID usages */
+    virtual bool hasLed(int32_t deviceId, int32_t led) const = 0;
+    virtual void setLedState(int32_t deviceId, int32_t led, bool on) = 0;
+
+    virtual void getVirtualKeyDefinitions(int32_t deviceId,
+            Vector<VirtualKeyDefinition>& outVirtualKeys) const = 0;
+
+    virtual sp<KeyCharacterMap> getKeyCharacterMap(int32_t deviceId) const = 0;
+    virtual bool setKeyboardLayoutOverlay(int32_t deviceId, const sp<KeyCharacterMap>& map) = 0;
+
+    /* Control the vibrator. */
+    virtual void vibrate(int32_t deviceId, nsecs_t duration) = 0;
+    virtual void cancelVibrate(int32_t deviceId) = 0;
+
+    /* Requests the EventHub to reopen all input devices on the next call to getEvents(). */
+    virtual void requestReopenDevices() = 0;
+
+    /* Wakes up getEvents() if it is blocked on a read. */
+    virtual void wake() = 0;
+
+    /* Dump EventHub state to a string. */
+    virtual void dump(std::string& dump) = 0;
+
+    /* Called by the heatbeat to ensures that the reader has not deadlocked. */
+    virtual void monitor() = 0;
+
+    /* Return true if the device is enabled. */
+    virtual bool isDeviceEnabled(int32_t deviceId) = 0;
+
+    /* Enable an input device */
+    virtual status_t enableDevice(int32_t deviceId) = 0;
+
+    /* Disable an input device. Closes file descriptor to that device. */
+    virtual status_t disableDevice(int32_t deviceId) = 0;
+};
+
+class EventHub : public EventHubInterface
+{
+public:
+    EventHub();
+
+    virtual uint32_t getDeviceClasses(int32_t deviceId) const;
+
+    virtual InputDeviceIdentifier getDeviceIdentifier(int32_t deviceId) const;
+
+    virtual int32_t getDeviceControllerNumber(int32_t deviceId) const;
+
+    virtual void getConfiguration(int32_t deviceId, PropertyMap* outConfiguration) const;
+
+    virtual status_t getAbsoluteAxisInfo(int32_t deviceId, int axis,
+            RawAbsoluteAxisInfo* outAxisInfo) const;
+
+    virtual bool hasRelativeAxis(int32_t deviceId, int axis) const;
+
+    virtual bool hasInputProperty(int32_t deviceId, int property) const;
+
+    virtual status_t mapKey(int32_t deviceId,
+            int32_t scanCode, int32_t usageCode, int32_t metaState,
+            int32_t* outKeycode, int32_t *outMetaState, uint32_t* outFlags) const;
+
+    virtual status_t mapAxis(int32_t deviceId, int32_t scanCode,
+            AxisInfo* outAxisInfo) const;
+
+    virtual void setExcludedDevices(const std::vector<std::string>& devices);
+
+    virtual int32_t getScanCodeState(int32_t deviceId, int32_t scanCode) const;
+    virtual int32_t getKeyCodeState(int32_t deviceId, int32_t keyCode) const;
+    virtual int32_t getSwitchState(int32_t deviceId, int32_t sw) const;
+    virtual status_t getAbsoluteAxisValue(int32_t deviceId, int32_t axis, int32_t* outValue) const;
+
+    virtual bool markSupportedKeyCodes(int32_t deviceId, size_t numCodes,
+            const int32_t* keyCodes, uint8_t* outFlags) const;
+
+    virtual size_t getEvents(int timeoutMillis, RawEvent* buffer, size_t bufferSize);
+
+    virtual bool hasScanCode(int32_t deviceId, int32_t scanCode) const;
+    virtual bool hasLed(int32_t deviceId, int32_t led) const;
+    virtual void setLedState(int32_t deviceId, int32_t led, bool on);
+
+    virtual void getVirtualKeyDefinitions(int32_t deviceId,
+            Vector<VirtualKeyDefinition>& outVirtualKeys) const;
+
+    virtual sp<KeyCharacterMap> getKeyCharacterMap(int32_t deviceId) const;
+    virtual bool setKeyboardLayoutOverlay(int32_t deviceId, const sp<KeyCharacterMap>& map);
+
+    virtual void vibrate(int32_t deviceId, nsecs_t duration);
+    virtual void cancelVibrate(int32_t deviceId);
+
+    virtual void requestReopenDevices();
+
+    virtual void wake();
+
+    virtual void dump(std::string& dump);
+    virtual void monitor();
+
+protected:
+    virtual ~EventHub();
+
+private:
+    struct Device {
+        Device* next;
+
+        int fd; // may be -1 if device is closed
+        const int32_t id;
+        const std::string path;
+        const InputDeviceIdentifier identifier;
+
+        uint32_t classes;
+
+        uint8_t keyBitmask[(KEY_MAX + 1) / 8];
+        uint8_t absBitmask[(ABS_MAX + 1) / 8];
+        uint8_t relBitmask[(REL_MAX + 1) / 8];
+        uint8_t swBitmask[(SW_MAX + 1) / 8];
+        uint8_t ledBitmask[(LED_MAX + 1) / 8];
+        uint8_t ffBitmask[(FF_MAX + 1) / 8];
+        uint8_t propBitmask[(INPUT_PROP_MAX + 1) / 8];
+
+        std::string configurationFile;
+        PropertyMap* configuration;
+        VirtualKeyMap* virtualKeyMap;
+        KeyMap keyMap;
+
+        sp<KeyCharacterMap> overlayKeyMap;
+        sp<KeyCharacterMap> combinedKeyMap;
+
+        bool ffEffectPlaying;
+        int16_t ffEffectId; // initially -1
+
+        int32_t controllerNumber;
+
+        Device(int fd, int32_t id, const std::string& path,
+                const InputDeviceIdentifier& identifier);
+        ~Device();
+
+        void close();
+
+        bool enabled; // initially true
+        status_t enable();
+        status_t disable();
+        bool hasValidFd();
+        const bool isVirtual; // set if fd < 0 is passed to constructor
+
+        const sp<KeyCharacterMap>& getKeyCharacterMap() const {
+            if (combinedKeyMap != nullptr) {
+                return combinedKeyMap;
+            }
+            return keyMap.keyCharacterMap;
+        }
+    };
+
+    status_t openDeviceLocked(const char *devicePath);
+    void createVirtualKeyboardLocked();
+    void addDeviceLocked(Device* device);
+    void assignDescriptorLocked(InputDeviceIdentifier& identifier);
+
+    status_t closeDeviceByPathLocked(const char *devicePath);
+    void closeDeviceLocked(Device* device);
+    void closeAllDevicesLocked();
+
+    void configureFd(Device* device);
+
+    bool isDeviceEnabled(int32_t deviceId);
+    status_t enableDevice(int32_t deviceId);
+    status_t disableDevice(int32_t deviceId);
+    status_t registerDeviceForEpollLocked(Device* device);
+    status_t unregisterDeviceFromEpollLocked(Device* device);
+
+    status_t scanDirLocked(const char *dirname);
+    void scanDevicesLocked();
+    status_t readNotifyLocked();
+
+    Device* getDeviceByDescriptorLocked(const std::string& descriptor) const;
+    Device* getDeviceLocked(int32_t deviceId) const;
+    Device* getDeviceByPathLocked(const char* devicePath) const;
+    Device* getDeviceByFdLocked(int fd) const;
+
+    bool hasKeycodeLocked(Device* device, int keycode) const;
+
+    void loadConfigurationLocked(Device* device);
+    status_t loadVirtualKeyMapLocked(Device* device);
+    status_t loadKeyMapLocked(Device* device);
+
+    bool isExternalDeviceLocked(Device* device);
+    bool deviceHasMicLocked(Device* device);
+
+    int32_t getNextControllerNumberLocked(Device* device);
+    void releaseControllerNumberLocked(Device* device);
+    void setLedForControllerLocked(Device* device);
+
+    status_t mapLed(Device* device, int32_t led, int32_t* outScanCode) const;
+    void setLedStateLocked(Device* device, int32_t led, bool on);
+
+    // Protect all internal state.
+    mutable Mutex mLock;
+
+    // The actual id of the built-in keyboard, or NO_BUILT_IN_KEYBOARD if none.
+    // EventHub remaps the built-in keyboard to id 0 externally as required by the API.
+    enum {
+        // Must not conflict with any other assigned device ids, including
+        // the virtual keyboard id (-1).
+        NO_BUILT_IN_KEYBOARD = -2,
+    };
+    int32_t mBuiltInKeyboardId;
+
+    int32_t mNextDeviceId;
+
+    BitSet32 mControllerNumbers;
+
+    KeyedVector<int32_t, Device*> mDevices;
+
+    Device *mOpeningDevices;
+    Device *mClosingDevices;
+
+    bool mNeedToSendFinishedDeviceScan;
+    bool mNeedToReopenDevices;
+    bool mNeedToScanDevices;
+    std::vector<std::string> mExcludedDevices;
+
+    int mEpollFd;
+    int mINotifyFd;
+    int mWakeReadPipeFd;
+    int mWakeWritePipeFd;
+
+    // Epoll FD list size hint.
+    static const int EPOLL_SIZE_HINT = 8;
+
+    // Maximum number of signalled FDs to handle at a time.
+    static const int EPOLL_MAX_EVENTS = 16;
+
+    // The array of pending epoll events and the index of the next event to be handled.
+    struct epoll_event mPendingEventItems[EPOLL_MAX_EVENTS];
+    size_t mPendingEventCount;
+    size_t mPendingEventIndex;
+    bool mPendingINotify;
+
+    bool mUsingEpollWakeup;
+};
+
+}; // namespace android
+
+#endif // _RUNTIME_EVENT_HUB_H
diff --git a/services/inputflinger/include/InputListener.h b/services/inputflinger/include/InputListener.h
new file mode 100644
index 0000000..a3d919b
--- /dev/null
+++ b/services/inputflinger/include/InputListener.h
@@ -0,0 +1,207 @@
+/*
+ * Copyright (C) 2011 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 _UI_INPUT_LISTENER_H
+#define _UI_INPUT_LISTENER_H
+
+#include <input/Input.h>
+#include <utils/RefBase.h>
+#include <utils/Vector.h>
+
+namespace android {
+
+class InputListenerInterface;
+
+
+/* Superclass of all input event argument objects */
+struct NotifyArgs {
+    virtual ~NotifyArgs() { }
+
+    virtual void notify(const sp<InputListenerInterface>& listener) const = 0;
+};
+
+
+/* Describes a configuration change event. */
+struct NotifyConfigurationChangedArgs : public NotifyArgs {
+    nsecs_t eventTime;
+
+    inline NotifyConfigurationChangedArgs() { }
+
+    explicit NotifyConfigurationChangedArgs(nsecs_t eventTime);
+
+    NotifyConfigurationChangedArgs(const NotifyConfigurationChangedArgs& other);
+
+    virtual ~NotifyConfigurationChangedArgs() { }
+
+    virtual void notify(const sp<InputListenerInterface>& listener) const;
+};
+
+
+/* Describes a key event. */
+struct NotifyKeyArgs : public NotifyArgs {
+    nsecs_t eventTime;
+    int32_t deviceId;
+    uint32_t source;
+    int32_t displayId;
+    uint32_t policyFlags;
+    int32_t action;
+    int32_t flags;
+    int32_t keyCode;
+    int32_t scanCode;
+    int32_t metaState;
+    nsecs_t downTime;
+
+    inline NotifyKeyArgs() { }
+
+    NotifyKeyArgs(nsecs_t eventTime, int32_t deviceId, uint32_t source, int32_t displayId,
+            uint32_t policyFlags, int32_t action, int32_t flags, int32_t keyCode, int32_t scanCode,
+            int32_t metaState, nsecs_t downTime);
+
+    NotifyKeyArgs(const NotifyKeyArgs& other);
+
+    virtual ~NotifyKeyArgs() { }
+
+    virtual void notify(const sp<InputListenerInterface>& listener) const;
+};
+
+
+/* Describes a motion event. */
+struct NotifyMotionArgs : public NotifyArgs {
+    nsecs_t eventTime;
+    int32_t deviceId;
+    uint32_t source;
+    int32_t displayId;
+    uint32_t policyFlags;
+    int32_t action;
+    int32_t actionButton;
+    int32_t flags;
+    int32_t metaState;
+    int32_t buttonState;
+    int32_t edgeFlags;
+    /**
+     * A timestamp in the input device's time base, not the platform's.
+     * The units are microseconds since the last reset.
+     * This can only be compared to other device timestamps from the same device.
+     * This value will overflow after a little over an hour.
+     */
+    uint32_t deviceTimestamp;
+    uint32_t pointerCount;
+    PointerProperties pointerProperties[MAX_POINTERS];
+    PointerCoords pointerCoords[MAX_POINTERS];
+    float xPrecision;
+    float yPrecision;
+    nsecs_t downTime;
+
+    inline NotifyMotionArgs() { }
+
+    NotifyMotionArgs(nsecs_t eventTime, int32_t deviceId, uint32_t source, int32_t displayId,
+            uint32_t policyFlags,
+            int32_t action, int32_t actionButton, int32_t flags,
+            int32_t metaState, int32_t buttonState,
+            int32_t edgeFlags, uint32_t deviceTimestamp, uint32_t pointerCount,
+            const PointerProperties* pointerProperties, const PointerCoords* pointerCoords,
+            float xPrecision, float yPrecision, nsecs_t downTime);
+
+    NotifyMotionArgs(const NotifyMotionArgs& other);
+
+    virtual ~NotifyMotionArgs() { }
+
+    virtual void notify(const sp<InputListenerInterface>& listener) const;
+};
+
+
+/* Describes a switch event. */
+struct NotifySwitchArgs : public NotifyArgs {
+    nsecs_t eventTime;
+    uint32_t policyFlags;
+    uint32_t switchValues;
+    uint32_t switchMask;
+
+    inline NotifySwitchArgs() { }
+
+    NotifySwitchArgs(nsecs_t eventTime, uint32_t policyFlags,
+            uint32_t switchValues, uint32_t switchMask);
+
+    NotifySwitchArgs(const NotifySwitchArgs& other);
+
+    virtual ~NotifySwitchArgs() { }
+
+    virtual void notify(const sp<InputListenerInterface>& listener) const;
+};
+
+
+/* Describes a device reset event, such as when a device is added,
+ * reconfigured, or removed. */
+struct NotifyDeviceResetArgs : public NotifyArgs {
+    nsecs_t eventTime;
+    int32_t deviceId;
+
+    inline NotifyDeviceResetArgs() { }
+
+    NotifyDeviceResetArgs(nsecs_t eventTime, int32_t deviceId);
+
+    NotifyDeviceResetArgs(const NotifyDeviceResetArgs& other);
+
+    virtual ~NotifyDeviceResetArgs() { }
+
+    virtual void notify(const sp<InputListenerInterface>& listener) const;
+};
+
+
+/*
+ * The interface used by the InputReader to notify the InputListener about input events.
+ */
+class InputListenerInterface : public virtual RefBase {
+protected:
+    InputListenerInterface() { }
+    virtual ~InputListenerInterface() { }
+
+public:
+    virtual void notifyConfigurationChanged(const NotifyConfigurationChangedArgs* args) = 0;
+    virtual void notifyKey(const NotifyKeyArgs* args) = 0;
+    virtual void notifyMotion(const NotifyMotionArgs* args) = 0;
+    virtual void notifySwitch(const NotifySwitchArgs* args) = 0;
+    virtual void notifyDeviceReset(const NotifyDeviceResetArgs* args) = 0;
+};
+
+
+/*
+ * An implementation of the listener interface that queues up and defers dispatch
+ * of decoded events until flushed.
+ */
+class QueuedInputListener : public InputListenerInterface {
+protected:
+    virtual ~QueuedInputListener();
+
+public:
+    explicit QueuedInputListener(const sp<InputListenerInterface>& innerListener);
+
+    virtual void notifyConfigurationChanged(const NotifyConfigurationChangedArgs* args);
+    virtual void notifyKey(const NotifyKeyArgs* args);
+    virtual void notifyMotion(const NotifyMotionArgs* args);
+    virtual void notifySwitch(const NotifySwitchArgs* args);
+    virtual void notifyDeviceReset(const NotifyDeviceResetArgs* args);
+
+    void flush();
+
+private:
+    sp<InputListenerInterface> mInnerListener;
+    Vector<NotifyArgs*> mArgsQueue;
+};
+
+} // namespace android
+
+#endif // _UI_INPUT_LISTENER_H
diff --git a/services/inputflinger/include/InputReaderBase.h b/services/inputflinger/include/InputReaderBase.h
new file mode 100644
index 0000000..fff8480
--- /dev/null
+++ b/services/inputflinger/include/InputReaderBase.h
@@ -0,0 +1,342 @@
+/*
+ * Copyright (C) 2018 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 _UI_INPUT_READER_BASE_H
+#define _UI_INPUT_READER_BASE_H
+
+#include "PointerControllerInterface.h"
+
+#include <input/Input.h>
+#include <input/InputDevice.h>
+#include <input/DisplayViewport.h>
+#include <input/VelocityControl.h>
+#include <input/VelocityTracker.h>
+#include <utils/KeyedVector.h>
+#include <utils/Thread.h>
+#include <utils/RefBase.h>
+#include <utils/SortedVector.h>
+
+#include <optional>
+#include <stddef.h>
+#include <unistd.h>
+#include <vector>
+
+// Maximum supported size of a vibration pattern.
+// Must be at least 2.
+#define MAX_VIBRATE_PATTERN_SIZE 100
+
+// Maximum allowable delay value in a vibration pattern before
+// which the delay will be truncated.
+#define MAX_VIBRATE_PATTERN_DELAY_NSECS (1000000 * 1000000000LL)
+
+namespace android {
+
+/* Processes raw input events and sends cooked event data to an input listener. */
+class InputReaderInterface : public virtual RefBase {
+protected:
+    InputReaderInterface() { }
+    virtual ~InputReaderInterface() { }
+
+public:
+    /* Dumps the state of the input reader.
+     *
+     * This method may be called on any thread (usually by the input manager). */
+    virtual void dump(std::string& dump) = 0;
+
+    /* Called by the heatbeat to ensures that the reader has not deadlocked. */
+    virtual void monitor() = 0;
+
+    /* Returns true if the input device is enabled. */
+    virtual bool isInputDeviceEnabled(int32_t deviceId) = 0;
+
+    /* Runs a single iteration of the processing loop.
+     * Nominally reads and processes one incoming message from the EventHub.
+     *
+     * This method should be called on the input reader thread.
+     */
+    virtual void loopOnce() = 0;
+
+    /* Gets information about all input devices.
+     *
+     * This method may be called on any thread (usually by the input manager).
+     */
+    virtual void getInputDevices(Vector<InputDeviceInfo>& outInputDevices) = 0;
+
+    /* Query current input state. */
+    virtual int32_t getScanCodeState(int32_t deviceId, uint32_t sourceMask,
+            int32_t scanCode) = 0;
+    virtual int32_t getKeyCodeState(int32_t deviceId, uint32_t sourceMask,
+            int32_t keyCode) = 0;
+    virtual int32_t getSwitchState(int32_t deviceId, uint32_t sourceMask,
+            int32_t sw) = 0;
+
+    /* Toggle Caps Lock */
+    virtual void toggleCapsLockState(int32_t deviceId) = 0;
+
+    /* Determine whether physical keys exist for the given framework-domain key codes. */
+    virtual bool hasKeys(int32_t deviceId, uint32_t sourceMask,
+            size_t numCodes, const int32_t* keyCodes, uint8_t* outFlags) = 0;
+
+    /* Requests that a reconfiguration of all input devices.
+     * The changes flag is a bitfield that indicates what has changed and whether
+     * the input devices must all be reopened. */
+    virtual void requestRefreshConfiguration(uint32_t changes) = 0;
+
+    /* Controls the vibrator of a particular input device. */
+    virtual void vibrate(int32_t deviceId, const nsecs_t* pattern, size_t patternSize,
+            ssize_t repeat, int32_t token) = 0;
+    virtual void cancelVibrate(int32_t deviceId, int32_t token) = 0;
+};
+
+/* Reads raw events from the event hub and processes them, endlessly. */
+class InputReaderThread : public Thread {
+public:
+    explicit InputReaderThread(const sp<InputReaderInterface>& reader);
+    virtual ~InputReaderThread();
+
+private:
+    sp<InputReaderInterface> mReader;
+
+    virtual bool threadLoop();
+};
+
+/*
+ * Input reader configuration.
+ *
+ * Specifies various options that modify the behavior of the input reader.
+ */
+struct InputReaderConfiguration {
+    // Describes changes that have occurred.
+    enum {
+        // The pointer speed changed.
+        CHANGE_POINTER_SPEED = 1 << 0,
+
+        // The pointer gesture control changed.
+        CHANGE_POINTER_GESTURE_ENABLEMENT = 1 << 1,
+
+        // The display size or orientation changed.
+        CHANGE_DISPLAY_INFO = 1 << 2,
+
+        // The visible touches option changed.
+        CHANGE_SHOW_TOUCHES = 1 << 3,
+
+        // The keyboard layouts must be reloaded.
+        CHANGE_KEYBOARD_LAYOUTS = 1 << 4,
+
+        // The device name alias supplied by the may have changed for some devices.
+        CHANGE_DEVICE_ALIAS = 1 << 5,
+
+        // The location calibration matrix changed.
+        CHANGE_TOUCH_AFFINE_TRANSFORMATION = 1 << 6,
+
+        // The presence of an external stylus has changed.
+        CHANGE_EXTERNAL_STYLUS_PRESENCE = 1 << 7,
+
+        // The pointer capture mode has changed.
+        CHANGE_POINTER_CAPTURE = 1 << 8,
+
+        // The set of disabled input devices (disabledDevices) has changed.
+        CHANGE_ENABLED_STATE = 1 << 9,
+
+        // All devices must be reopened.
+        CHANGE_MUST_REOPEN = 1 << 31,
+    };
+
+    // Gets the amount of time to disable virtual keys after the screen is touched
+    // in order to filter out accidental virtual key presses due to swiping gestures
+    // or taps near the edge of the display.  May be 0 to disable the feature.
+    nsecs_t virtualKeyQuietTime;
+
+    // The excluded device names for the platform.
+    // Devices with these names will be ignored.
+    std::vector<std::string> excludedDeviceNames;
+
+    // Velocity control parameters for mouse pointer movements.
+    VelocityControlParameters pointerVelocityControlParameters;
+
+    // Velocity control parameters for mouse wheel movements.
+    VelocityControlParameters wheelVelocityControlParameters;
+
+    // True if pointer gestures are enabled.
+    bool pointerGesturesEnabled;
+
+    // Quiet time between certain pointer gesture transitions.
+    // Time to allow for all fingers or buttons to settle into a stable state before
+    // starting a new gesture.
+    nsecs_t pointerGestureQuietInterval;
+
+    // The minimum speed that a pointer must travel for us to consider switching the active
+    // touch pointer to it during a drag.  This threshold is set to avoid switching due
+    // to noise from a finger resting on the touch pad (perhaps just pressing it down).
+    float pointerGestureDragMinSwitchSpeed; // in pixels per second
+
+    // Tap gesture delay time.
+    // The time between down and up must be less than this to be considered a tap.
+    nsecs_t pointerGestureTapInterval;
+
+    // Tap drag gesture delay time.
+    // The time between the previous tap's up and the next down must be less than
+    // this to be considered a drag.  Otherwise, the previous tap is finished and a
+    // new tap begins.
+    //
+    // Note that the previous tap will be held down for this entire duration so this
+    // interval must be shorter than the long press timeout.
+    nsecs_t pointerGestureTapDragInterval;
+
+    // The distance in pixels that the pointer is allowed to move from initial down
+    // to up and still be called a tap.
+    float pointerGestureTapSlop; // in pixels
+
+    // Time after the first touch points go down to settle on an initial centroid.
+    // This is intended to be enough time to handle cases where the user puts down two
+    // fingers at almost but not quite exactly the same time.
+    nsecs_t pointerGestureMultitouchSettleInterval;
+
+    // The transition from PRESS to SWIPE or FREEFORM gesture mode is made when
+    // at least two pointers have moved at least this far from their starting place.
+    float pointerGestureMultitouchMinDistance; // in pixels
+
+    // The transition from PRESS to SWIPE gesture mode can only occur when the
+    // cosine of the angle between the two vectors is greater than or equal to than this value
+    // which indicates that the vectors are oriented in the same direction.
+    // When the vectors are oriented in the exactly same direction, the cosine is 1.0.
+    // (In exactly opposite directions, the cosine is -1.0.)
+    float pointerGestureSwipeTransitionAngleCosine;
+
+    // The transition from PRESS to SWIPE gesture mode can only occur when the
+    // fingers are no more than this far apart relative to the diagonal size of
+    // the touch pad.  For example, a ratio of 0.5 means that the fingers must be
+    // no more than half the diagonal size of the touch pad apart.
+    float pointerGestureSwipeMaxWidthRatio;
+
+    // The gesture movement speed factor relative to the size of the display.
+    // Movement speed applies when the fingers are moving in the same direction.
+    // Without acceleration, a full swipe of the touch pad diagonal in movement mode
+    // will cover this portion of the display diagonal.
+    float pointerGestureMovementSpeedRatio;
+
+    // The gesture zoom speed factor relative to the size of the display.
+    // Zoom speed applies when the fingers are mostly moving relative to each other
+    // to execute a scale gesture or similar.
+    // Without acceleration, a full swipe of the touch pad diagonal in zoom mode
+    // will cover this portion of the display diagonal.
+    float pointerGestureZoomSpeedRatio;
+
+    // True to show the location of touches on the touch screen as spots.
+    bool showTouches;
+
+    // True if pointer capture is enabled.
+    bool pointerCapture;
+
+    // The set of currently disabled input devices.
+    SortedVector<int32_t> disabledDevices;
+
+    InputReaderConfiguration() :
+            virtualKeyQuietTime(0),
+            pointerVelocityControlParameters(1.0f, 500.0f, 3000.0f, 3.0f),
+            wheelVelocityControlParameters(1.0f, 15.0f, 50.0f, 4.0f),
+            pointerGesturesEnabled(true),
+            pointerGestureQuietInterval(100 * 1000000LL), // 100 ms
+            pointerGestureDragMinSwitchSpeed(50), // 50 pixels per second
+            pointerGestureTapInterval(150 * 1000000LL), // 150 ms
+            pointerGestureTapDragInterval(150 * 1000000LL), // 150 ms
+            pointerGestureTapSlop(10.0f), // 10 pixels
+            pointerGestureMultitouchSettleInterval(100 * 1000000LL), // 100 ms
+            pointerGestureMultitouchMinDistance(15), // 15 pixels
+            pointerGestureSwipeTransitionAngleCosine(0.2588f), // cosine of 75 degrees
+            pointerGestureSwipeMaxWidthRatio(0.25f),
+            pointerGestureMovementSpeedRatio(0.8f),
+            pointerGestureZoomSpeedRatio(0.3f),
+            showTouches(false) { }
+
+    std::optional<DisplayViewport> getDisplayViewport(ViewportType viewportType,
+            const std::string& uniqueDisplayId) const;
+    void setDisplayViewports(const std::vector<DisplayViewport>& viewports);
+
+
+    void dump(std::string& dump) const;
+    void dumpViewport(std::string& dump, const DisplayViewport& viewport) const;
+
+private:
+    std::vector<DisplayViewport> mDisplays;
+};
+
+struct TouchAffineTransformation {
+    float x_scale;
+    float x_ymix;
+    float x_offset;
+    float y_xmix;
+    float y_scale;
+    float y_offset;
+
+    TouchAffineTransformation() :
+        x_scale(1.0f), x_ymix(0.0f), x_offset(0.0f),
+        y_xmix(0.0f), y_scale(1.0f), y_offset(0.0f) {
+    }
+
+    TouchAffineTransformation(float xscale, float xymix, float xoffset,
+            float yxmix, float yscale, float yoffset) :
+        x_scale(xscale), x_ymix(xymix), x_offset(xoffset),
+        y_xmix(yxmix), y_scale(yscale), y_offset(yoffset) {
+    }
+
+    void applyTo(float& x, float& y) const;
+};
+
+/*
+ * Input reader policy interface.
+ *
+ * The input reader policy is used by the input reader to interact with the Window Manager
+ * and other system components.
+ *
+ * The actual implementation is partially supported by callbacks into the DVM
+ * via JNI.  This interface is also mocked in the unit tests.
+ *
+ * These methods must NOT re-enter the input reader since they may be called while
+ * holding the input reader lock.
+ */
+class InputReaderPolicyInterface : public virtual RefBase {
+protected:
+    InputReaderPolicyInterface() { }
+    virtual ~InputReaderPolicyInterface() { }
+
+public:
+    /* Gets the input reader configuration. */
+    virtual void getReaderConfiguration(InputReaderConfiguration* outConfig) = 0;
+
+    /* Gets a pointer controller associated with the specified cursor device (ie. a mouse). */
+    virtual sp<PointerControllerInterface> obtainPointerController(int32_t deviceId) = 0;
+
+    /* Notifies the input reader policy that some input devices have changed
+     * and provides information about all current input devices.
+     */
+    virtual void notifyInputDevicesChanged(const Vector<InputDeviceInfo>& inputDevices) = 0;
+
+    /* Gets the keyboard layout for a particular input device. */
+    virtual sp<KeyCharacterMap> getKeyboardLayoutOverlay(
+            const InputDeviceIdentifier& identifier) = 0;
+
+    /* Gets a user-supplied alias for a particular input device, or an empty string if none. */
+    virtual std::string getDeviceAlias(const InputDeviceIdentifier& identifier) = 0;
+
+    /* Gets the affine calibration associated with the specified device. */
+    virtual TouchAffineTransformation getTouchAffineTransformation(
+            const std::string& inputDeviceDescriptor, int32_t surfaceRotation) = 0;
+};
+
+} // namespace android
+
+#endif // _UI_INPUT_READER_COMMON_H
\ No newline at end of file
diff --git a/services/inputflinger/include/InputReaderFactory.h b/services/inputflinger/include/InputReaderFactory.h
new file mode 100644
index 0000000..9db6233
--- /dev/null
+++ b/services/inputflinger/include/InputReaderFactory.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2018 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 <utils/StrongPointer.h>
+
+namespace android {
+
+class InputReaderInterface;
+class InputReaderPolicyInterface;
+class InputListenerInterface;
+
+sp<InputReaderInterface> createInputReader(
+        const sp<InputReaderPolicyInterface>& policy,
+        const sp<InputListenerInterface>& listener);
+
+} // namespace android
diff --git a/services/inputflinger/include/PointerControllerInterface.h b/services/inputflinger/include/PointerControllerInterface.h
new file mode 100644
index 0000000..e94dd94
--- /dev/null
+++ b/services/inputflinger/include/PointerControllerInterface.h
@@ -0,0 +1,105 @@
+/*
+ * Copyright (C) 2014 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 _INPUTFLINGER_POINTER_CONTROLLER_INTERFACE_H
+#define _INPUTFLINGER_POINTER_CONTROLLER_INTERFACE_H
+
+#include <input/Input.h>
+#include <utils/BitSet.h>
+#include <utils/RefBase.h>
+
+namespace android {
+
+/**
+ * Interface for tracking a mouse / touch pad pointer and touch pad spots.
+ *
+ * The spots are sprites on screen that visually represent the positions of
+ * fingers
+ *
+ * The pointer controller is responsible for providing synchronization and for tracking
+ * display orientation changes if needed.
+ */
+class PointerControllerInterface : public virtual RefBase {
+protected:
+    PointerControllerInterface() { }
+    virtual ~PointerControllerInterface() { }
+
+public:
+    /* Gets the bounds of the region that the pointer can traverse.
+     * Returns true if the bounds are available. */
+    virtual bool getBounds(float* outMinX, float* outMinY,
+            float* outMaxX, float* outMaxY) const = 0;
+
+    /* Move the pointer. */
+    virtual void move(float deltaX, float deltaY) = 0;
+
+    /* Sets a mask that indicates which buttons are pressed. */
+    virtual void setButtonState(int32_t buttonState) = 0;
+
+    /* Gets a mask that indicates which buttons are pressed. */
+    virtual int32_t getButtonState() const = 0;
+
+    /* Sets the absolute location of the pointer. */
+    virtual void setPosition(float x, float y) = 0;
+
+    /* Gets the absolute location of the pointer. */
+    virtual void getPosition(float* outX, float* outY) const = 0;
+
+    enum Transition {
+        // Fade/unfade immediately.
+        TRANSITION_IMMEDIATE,
+        // Fade/unfade gradually.
+        TRANSITION_GRADUAL,
+    };
+
+    /* Fades the pointer out now. */
+    virtual void fade(Transition transition) = 0;
+
+    /* Makes the pointer visible if it has faded out.
+     * The pointer never unfades itself automatically.  This method must be called
+     * by the client whenever the pointer is moved or a button is pressed and it
+     * wants to ensure that the pointer becomes visible again. */
+    virtual void unfade(Transition transition) = 0;
+
+    enum Presentation {
+        // Show the mouse pointer.
+        PRESENTATION_POINTER,
+        // Show spots and a spot anchor in place of the mouse pointer.
+        PRESENTATION_SPOT,
+    };
+
+    /* Sets the mode of the pointer controller. */
+    virtual void setPresentation(Presentation presentation) = 0;
+
+    /* Sets the spots for the current gesture.
+     * The spots are not subject to the inactivity timeout like the pointer
+     * itself it since they are expected to remain visible for so long as
+     * the fingers are on the touch pad.
+     *
+     * The values of the AMOTION_EVENT_AXIS_PRESSURE axis is significant.
+     * For spotCoords, pressure != 0 indicates that the spot's location is being
+     * pressed (not hovering).
+     */
+    virtual void setSpots(const PointerCoords* spotCoords, const uint32_t* spotIdToIndex,
+            BitSet32 spotIdBits) = 0;
+
+    /* Removes all spots. */
+    virtual void clearSpots() = 0;
+};
+
+} // namespace android
+
+#endif // _INPUTFLINGER_POINTER_CONTROLLER_INTERFACE_H