diff --git a/include/input/Input.h b/include/input/Input.h
index 2c4a511..805957a 100644
--- a/include/input/Input.h
+++ b/include/input/Input.h
@@ -241,6 +241,11 @@
     DEEP_PRESS = 2,
 };
 
+/**
+ * String representation of MotionClassification
+ */
+const char* motionClassificationToString(MotionClassification classification);
+
 /*
  * Pointer coordinate data.
  */
diff --git a/include/input/InputTransport.h b/include/input/InputTransport.h
index dddbfb0..63606e5 100644
--- a/include/input/InputTransport.h
+++ b/include/input/InputTransport.h
@@ -105,8 +105,9 @@
             int32_t flags;
             int32_t metaState;
             int32_t buttonState;
+            MotionClassification classification; // base type: uint8_t
+            uint8_t empty2[3];
             int32_t edgeFlags;
-            uint32_t empty2;
             nsecs_t downTime __attribute__((aligned(8)));
             float xOffset;
             float yOffset;
@@ -271,6 +272,7 @@
             int32_t edgeFlags,
             int32_t metaState,
             int32_t buttonState,
+            MotionClassification classification,
             float xOffset,
             float yOffset,
             float xPrecision,
diff --git a/libs/input/Input.cpp b/libs/input/Input.cpp
index db86c8e..9fd25f9 100644
--- a/libs/input/Input.cpp
+++ b/libs/input/Input.cpp
@@ -29,6 +29,17 @@
 
 namespace android {
 
+const char* motionClassificationToString(MotionClassification classification) {
+    switch (classification) {
+        case MotionClassification::NONE:
+            return "NONE";
+        case MotionClassification::AMBIGUOUS_GESTURE:
+            return "AMBIGUOUS_GESTURE";
+        case MotionClassification::DEEP_PRESS:
+            return "DEEP_PRESS";
+    }
+}
+
 // --- InputEvent ---
 
 void InputEvent::initialize(int32_t deviceId, int32_t source, int32_t displayId) {
diff --git a/libs/input/InputTransport.cpp b/libs/input/InputTransport.cpp
index 0ddee44..0f7a1f0 100644
--- a/libs/input/InputTransport.cpp
+++ b/libs/input/InputTransport.cpp
@@ -157,6 +157,8 @@
             msg->body.motion.metaState = body.motion.metaState;
             // int32_t buttonState
             msg->body.motion.buttonState = body.motion.buttonState;
+            // MotionClassification classification
+            msg->body.motion.classification = body.motion.classification;
             // int32_t edgeFlags
             msg->body.motion.edgeFlags = body.motion.edgeFlags;
             // nsecs_t downTime
@@ -448,6 +450,7 @@
         int32_t edgeFlags,
         int32_t metaState,
         int32_t buttonState,
+        MotionClassification classification,
         float xOffset,
         float yOffset,
         float xPrecision,
@@ -461,13 +464,13 @@
     ALOGD("channel '%s' publisher ~ publishMotionEvent: seq=%u, deviceId=%d, source=0x%x, "
             "displayId=%" PRId32 ", "
             "action=0x%x, actionButton=0x%08x, flags=0x%x, edgeFlags=0x%x, "
-            "metaState=0x%x, buttonState=0x%x, xOffset=%f, yOffset=%f, "
+            "metaState=0x%x, buttonState=0x%x, classification=%s, xOffset=%f, yOffset=%f, "
             "xPrecision=%f, yPrecision=%f, downTime=%" PRId64 ", eventTime=%" PRId64 ", "
             "pointerCount=%" PRIu32,
             mChannel->getName().c_str(), seq,
             deviceId, source, displayId, action, actionButton, flags, edgeFlags, metaState,
-            buttonState, xOffset, yOffset, xPrecision, yPrecision, downTime, eventTime,
-            pointerCount);
+            buttonState, motionClassificationToString(classification),
+            xOffset, yOffset, xPrecision, yPrecision, downTime, eventTime, pointerCount);
 #endif
 
     if (!seq) {
@@ -493,6 +496,7 @@
     msg.body.motion.edgeFlags = edgeFlags;
     msg.body.motion.metaState = metaState;
     msg.body.motion.buttonState = buttonState;
+    msg.body.motion.classification = classification;
     msg.body.motion.xOffset = xOffset;
     msg.body.motion.yOffset = yOffset;
     msg.body.motion.xPrecision = xPrecision;
@@ -1112,7 +1116,7 @@
             msg->body.motion.edgeFlags,
             msg->body.motion.metaState,
             msg->body.motion.buttonState,
-            MotionClassification::NONE,
+            msg->body.motion.classification,
             msg->body.motion.xOffset,
             msg->body.motion.yOffset,
             msg->body.motion.xPrecision,
diff --git a/libs/input/tests/InputChannel_test.cpp b/libs/input/tests/InputChannel_test.cpp
index 96c165c..f1675c0 100644
--- a/libs/input/tests/InputChannel_test.cpp
+++ b/libs/input/tests/InputChannel_test.cpp
@@ -14,6 +14,8 @@
  * limitations under the License.
  */
 
+#include <array>
+
 #include "TestHelpers.h"
 
 #include <unistd.h>
@@ -155,5 +157,37 @@
             << "sendMessage should have returned DEAD_OBJECT";
 }
 
+TEST_F(InputChannelTest, SendAndReceive_MotionClassification) {
+    sp<InputChannel> serverChannel, clientChannel;
+    status_t result = InputChannel::openInputChannelPair("channel name",
+            serverChannel, clientChannel);
+    ASSERT_EQ(OK, result)
+            << "should have successfully opened a channel pair";
+
+    std::array<MotionClassification, 3> classifications = {
+        MotionClassification::NONE,
+        MotionClassification::AMBIGUOUS_GESTURE,
+        MotionClassification::DEEP_PRESS,
+    };
+
+    InputMessage serverMsg = {}, clientMsg;
+    serverMsg.header.type = InputMessage::TYPE_MOTION;
+    serverMsg.body.motion.seq = 1;
+    serverMsg.body.motion.pointerCount = 1;
+
+    for (MotionClassification classification : classifications) {
+        // Send and receive a message with classification
+        serverMsg.body.motion.classification = classification;
+        EXPECT_EQ(OK, serverChannel->sendMessage(&serverMsg))
+                << "server channel should be able to send message to client channel";
+
+        EXPECT_EQ(OK, clientChannel->receiveMessage(&clientMsg))
+                << "client channel should be able to receive message from server channel";
+        EXPECT_EQ(serverMsg.header.type, clientMsg.header.type);
+        EXPECT_EQ(classification, clientMsg.body.motion.classification) <<
+                "Expected to receive " << motionClassificationToString(classification);
+    }
+}
+
 
 } // namespace android
diff --git a/libs/input/tests/InputEvent_test.cpp b/libs/input/tests/InputEvent_test.cpp
index e4c1514..2b75c82 100644
--- a/libs/input/tests/InputEvent_test.cpp
+++ b/libs/input/tests/InputEvent_test.cpp
@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+#include <array>
 #include <math.h>
 
 #include <binder/Parcel.h>
@@ -25,11 +26,7 @@
 // Default display id.
 static constexpr int32_t DISPLAY_ID = ADISPLAY_ID_DEFAULT;
 
-class BaseTest : public testing::Test {
-protected:
-    virtual void SetUp() { }
-    virtual void TearDown() { }
-};
+class BaseTest : public testing::Test { };
 
 // --- PointerCoordsTest ---
 
@@ -316,6 +313,7 @@
     ASSERT_EQ(AMOTION_EVENT_EDGE_FLAG_TOP, event->getEdgeFlags());
     ASSERT_EQ(AMETA_ALT_ON, event->getMetaState());
     ASSERT_EQ(AMOTION_EVENT_BUTTON_PRIMARY, event->getButtonState());
+    ASSERT_EQ(MotionClassification::NONE, event->getClassification());
     ASSERT_EQ(X_OFFSET, event->getXOffset());
     ASSERT_EQ(Y_OFFSET, event->getYOffset());
     ASSERT_EQ(2.0f, event->getXPrecision());
@@ -609,4 +607,30 @@
     ASSERT_NEAR(originalRawY, event.getRawY(0), 0.001);
 }
 
+TEST_F(MotionEventTest, Initialize_SetsClassification) {
+    std::array<MotionClassification, 3> classifications = {
+            MotionClassification::NONE,
+            MotionClassification::AMBIGUOUS_GESTURE,
+            MotionClassification::DEEP_PRESS,
+    };
+
+    MotionEvent event;
+    constexpr size_t pointerCount = 1;
+    PointerProperties pointerProperties[pointerCount];
+    PointerCoords pointerCoords[pointerCount];
+    for (size_t i = 0; i < pointerCount; i++) {
+        pointerProperties[i].clear();
+        pointerProperties[i].id = i;
+        pointerCoords[i].clear();
+    }
+
+    for (MotionClassification classification : classifications) {
+        event.initialize(0 /*deviceId*/, AINPUT_SOURCE_TOUCHSCREEN, DISPLAY_ID,
+                AMOTION_EVENT_ACTION_DOWN, 0, 0, AMOTION_EVENT_EDGE_FLAG_NONE, AMETA_NONE, 0,
+                classification, 0, 0, 0, 0, 0 /*downTime*/, 0 /*eventTime*/,
+                pointerCount, pointerProperties, pointerCoords);
+        ASSERT_EQ(classification, event.getClassification());
+    }
+}
+
 } // namespace android
diff --git a/libs/input/tests/InputPublisherAndConsumer_test.cpp b/libs/input/tests/InputPublisherAndConsumer_test.cpp
index 0788c89..f2cd1be 100644
--- a/libs/input/tests/InputPublisherAndConsumer_test.cpp
+++ b/libs/input/tests/InputPublisherAndConsumer_test.cpp
@@ -141,6 +141,7 @@
     constexpr int32_t edgeFlags = AMOTION_EVENT_EDGE_FLAG_TOP;
     constexpr int32_t metaState = AMETA_ALT_LEFT_ON | AMETA_ALT_ON;
     constexpr int32_t buttonState = AMOTION_EVENT_BUTTON_PRIMARY;
+    constexpr MotionClassification classification = MotionClassification::AMBIGUOUS_GESTURE;
     constexpr float xOffset = -10;
     constexpr float yOffset = -20;
     constexpr float xPrecision = 0.25;
@@ -168,8 +169,8 @@
     }
 
     status = mPublisher->publishMotionEvent(seq, deviceId, source, displayId, action, actionButton,
-            flags, edgeFlags, metaState, buttonState, xOffset, yOffset, xPrecision, yPrecision,
-            downTime, eventTime, pointerCount,
+            flags, edgeFlags, metaState, buttonState, classification,
+            xOffset, yOffset, xPrecision, yPrecision, downTime, eventTime, pointerCount,
             pointerProperties, pointerCoords);
     ASSERT_EQ(OK, status)
             << "publisher publishMotionEvent should return OK";
@@ -195,6 +196,7 @@
     EXPECT_EQ(edgeFlags, motionEvent->getEdgeFlags());
     EXPECT_EQ(metaState, motionEvent->getMetaState());
     EXPECT_EQ(buttonState, motionEvent->getButtonState());
+    EXPECT_EQ(classification, motionEvent->getClassification());
     EXPECT_EQ(xPrecision, motionEvent->getXPrecision());
     EXPECT_EQ(yPrecision, motionEvent->getYPrecision());
     EXPECT_EQ(downTime, motionEvent->getDownTime());
@@ -264,7 +266,8 @@
         pointerCoords[i].clear();
     }
 
-    status = mPublisher->publishMotionEvent(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    status = mPublisher->publishMotionEvent(0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+            MotionClassification::NONE, 0, 0, 0, 0, 0, 0,
             pointerCount, pointerProperties, pointerCoords);
     ASSERT_EQ(BAD_VALUE, status)
             << "publisher publishMotionEvent should return BAD_VALUE";
@@ -276,7 +279,8 @@
     PointerProperties pointerProperties[pointerCount];
     PointerCoords pointerCoords[pointerCount];
 
-    status = mPublisher->publishMotionEvent(1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    status = mPublisher->publishMotionEvent(1, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+            MotionClassification::NONE, 0, 0, 0, 0, 0, 0,
             pointerCount, pointerProperties, pointerCoords);
     ASSERT_EQ(BAD_VALUE, status)
             << "publisher publishMotionEvent should return BAD_VALUE";
@@ -293,7 +297,8 @@
         pointerCoords[i].clear();
     }
 
-    status = mPublisher->publishMotionEvent(1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    status = mPublisher->publishMotionEvent(1, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+            MotionClassification::NONE, 0, 0, 0, 0, 0, 0,
             pointerCount, pointerProperties, pointerCoords);
     ASSERT_EQ(BAD_VALUE, status)
             << "publisher publishMotionEvent should return BAD_VALUE";
diff --git a/libs/input/tests/StructLayout_test.cpp b/libs/input/tests/StructLayout_test.cpp
index 12a6782..62023fb 100644
--- a/libs/input/tests/StructLayout_test.cpp
+++ b/libs/input/tests/StructLayout_test.cpp
@@ -57,7 +57,8 @@
   CHECK_OFFSET(InputMessage::Body::Motion, flags, 36);
   CHECK_OFFSET(InputMessage::Body::Motion, metaState, 40);
   CHECK_OFFSET(InputMessage::Body::Motion, buttonState, 44);
-  CHECK_OFFSET(InputMessage::Body::Motion, edgeFlags, 48);
+  CHECK_OFFSET(InputMessage::Body::Motion, classification, 48);
+  CHECK_OFFSET(InputMessage::Body::Motion, edgeFlags, 52);
   CHECK_OFFSET(InputMessage::Body::Motion, downTime, 56);
   CHECK_OFFSET(InputMessage::Body::Motion, xOffset, 64);
   CHECK_OFFSET(InputMessage::Body::Motion, yOffset, 68);
diff --git a/services/inputflinger/InputDispatcher.cpp b/services/inputflinger/InputDispatcher.cpp
index 9af189a..9d92435 100644
--- a/services/inputflinger/InputDispatcher.cpp
+++ b/services/inputflinger/InputDispatcher.cpp
@@ -2155,7 +2155,7 @@
                     motionEntry->deviceId, motionEntry->source, motionEntry->displayId,
                     dispatchEntry->resolvedAction, motionEntry->actionButton,
                     dispatchEntry->resolvedFlags, motionEntry->edgeFlags,
-                    motionEntry->metaState, motionEntry->buttonState,
+                    motionEntry->metaState, motionEntry->buttonState, motionEntry->classification,
                     xOffset, yOffset, motionEntry->xPrecision, motionEntry->yPrecision,
                     motionEntry->downTime, motionEntry->eventTime,
                     motionEntry->pointerCount, motionEntry->pointerProperties,
@@ -2491,6 +2491,7 @@
             originalMotionEntry->flags,
             originalMotionEntry->metaState,
             originalMotionEntry->buttonState,
+            originalMotionEntry->classification,
             originalMotionEntry->edgeFlags,
             originalMotionEntry->xPrecision,
             originalMotionEntry->yPrecision,
@@ -2707,7 +2708,7 @@
         MotionEntry* newEntry = new MotionEntry(args->sequenceNum, args->eventTime,
                 args->deviceId, args->source, args->displayId, policyFlags,
                 args->action, args->actionButton, args->flags,
-                args->metaState, args->buttonState,
+                args->metaState, args->buttonState, args->classification,
                 args->edgeFlags, args->xPrecision, args->yPrecision, args->downTime,
                 args->pointerCount, args->pointerProperties, args->pointerCoords, 0, 0);
 
@@ -2845,7 +2846,7 @@
                 policyFlags,
                 action, actionButton, motionEvent->getFlags(),
                 motionEvent->getMetaState(), motionEvent->getButtonState(),
-                motionEvent->getEdgeFlags(),
+                motionEvent->getClassification(), motionEvent->getEdgeFlags(),
                 motionEvent->getXPrecision(), motionEvent->getYPrecision(),
                 motionEvent->getDownTime(),
                 uint32_t(pointerCount), pointerProperties, samplePointerCoords,
@@ -2860,7 +2861,7 @@
                     motionEvent->getDisplayId(), policyFlags,
                     action, actionButton, motionEvent->getFlags(),
                     motionEvent->getMetaState(), motionEvent->getButtonState(),
-                    motionEvent->getEdgeFlags(),
+                    motionEvent->getClassification(), motionEvent->getEdgeFlags(),
                     motionEvent->getXPrecision(), motionEvent->getYPrecision(),
                     motionEvent->getDownTime(),
                     uint32_t(pointerCount), pointerProperties, samplePointerCoords,
@@ -4404,8 +4405,8 @@
 InputDispatcher::MotionEntry::MotionEntry(uint32_t sequenceNum, 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,
-        float xPrecision, float yPrecision, nsecs_t downTime,
+        int32_t flags, int32_t metaState, int32_t buttonState, MotionClassification classification,
+        int32_t edgeFlags, float xPrecision, float yPrecision, nsecs_t downTime,
         uint32_t pointerCount,
         const PointerProperties* pointerProperties, const PointerCoords* pointerCoords,
         float xOffset, float yOffset) :
@@ -4413,7 +4414,8 @@
         eventTime(eventTime),
         deviceId(deviceId), source(source), displayId(displayId), action(action),
         actionButton(actionButton), flags(flags), metaState(metaState), buttonState(buttonState),
-        edgeFlags(edgeFlags), xPrecision(xPrecision), yPrecision(yPrecision),
+        classification(classification), edgeFlags(edgeFlags),
+        xPrecision(xPrecision), yPrecision(yPrecision),
         downTime(downTime), pointerCount(pointerCount) {
     for (uint32_t i = 0; i < pointerCount; i++) {
         this->pointerProperties[i].copyFrom(pointerProperties[i]);
@@ -4430,9 +4432,10 @@
 void InputDispatcher::MotionEntry::appendDescription(std::string& msg) const {
     msg += StringPrintf("MotionEvent(deviceId=%d, source=0x%08x, displayId=%" PRId32
             ", action=%s, actionButton=0x%08x, flags=0x%08x, metaState=0x%08x, buttonState=0x%08x, "
-            "edgeFlags=0x%08x, xPrecision=%.1f, yPrecision=%.1f, pointers=[",
+            "classification=%s, edgeFlags=0x%08x, xPrecision=%.1f, yPrecision=%.1f, pointers=[",
             deviceId, source, displayId, motionActionToString(action).c_str(), actionButton, flags,
-            metaState, buttonState, edgeFlags, xPrecision, yPrecision);
+            metaState, buttonState, motionClassificationToString(classification), edgeFlags,
+            xPrecision, yPrecision);
 
     for (uint32_t i = 0; i < pointerCount; i++) {
         if (i) {
@@ -4733,15 +4736,15 @@
     for (size_t i = 0; i < mMotionMementos.size(); i++) {
         const MotionMemento& memento = mMotionMementos.itemAt(i);
         if (shouldCancelMotion(memento, options)) {
+            const int32_t action = memento.hovering ?
+                    AMOTION_EVENT_ACTION_HOVER_EXIT : AMOTION_EVENT_ACTION_CANCEL;
             outEvents.push(new MotionEntry(SYNTHESIZED_EVENT_SEQUENCE_NUM, currentTime,
                     memento.deviceId, memento.source, memento.displayId, memento.policyFlags,
-                    memento.hovering
-                            ? AMOTION_EVENT_ACTION_HOVER_EXIT
-                            : AMOTION_EVENT_ACTION_CANCEL,
-                    memento.flags, 0, 0, 0, 0,
+                    action, 0 /*actionButton*/, memento.flags, AMETA_NONE, 0 /*buttonState*/,
+                    MotionClassification::NONE, AMOTION_EVENT_EDGE_FLAG_NONE,
                     memento.xPrecision, memento.yPrecision, memento.downTime,
                     memento.pointerCount, memento.pointerProperties, memento.pointerCoords,
-                    0, 0));
+                    0 /*xOffset*/, 0 /*yOffset*/));
         }
     }
 }
diff --git a/services/inputflinger/InputDispatcher.h b/services/inputflinger/InputDispatcher.h
index 49de6f3..327dbbd 100644
--- a/services/inputflinger/InputDispatcher.h
+++ b/services/inputflinger/InputDispatcher.h
@@ -535,6 +535,7 @@
         int32_t flags;
         int32_t metaState;
         int32_t buttonState;
+        MotionClassification classification;
         int32_t edgeFlags;
         float xPrecision;
         float yPrecision;
@@ -546,8 +547,9 @@
         MotionEntry(uint32_t sequenceNum, 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,
-                float xPrecision, float yPrecision, nsecs_t downTime, uint32_t pointerCount,
+                int32_t metaState, int32_t buttonState, MotionClassification classification,
+                int32_t edgeFlags, float xPrecision, float yPrecision,
+                nsecs_t downTime, uint32_t pointerCount,
                 const PointerProperties* pointerProperties, const PointerCoords* pointerCoords,
                 float xOffset, float yOffset);
         virtual void appendDescription(std::string& msg) const;