diff --git a/services/inputflinger/NotifyArgs.cpp b/services/inputflinger/NotifyArgs.cpp
new file mode 100644
index 0000000..1f37774
--- /dev/null
+++ b/services/inputflinger/NotifyArgs.cpp
@@ -0,0 +1,228 @@
+/*
+ * Copyright (C) 2022 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 "NotifyArgs"
+
+#define ATRACE_TAG ATRACE_TAG_INPUT
+
+#include "NotifyArgs.h"
+
+#include <android-base/stringprintf.h>
+#include <android/log.h>
+#include <math.h>
+#include <utils/Trace.h>
+
+using android::base::StringPrintf;
+
+namespace android {
+
+// --- NotifyConfigurationChangedArgs ---
+
+NotifyConfigurationChangedArgs::NotifyConfigurationChangedArgs(int32_t id, nsecs_t eventTime)
+      : id(id), eventTime(eventTime) {}
+
+// --- NotifyKeyArgs ---
+
+NotifyKeyArgs::NotifyKeyArgs(int32_t id, nsecs_t eventTime, nsecs_t readTime, 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)
+      : id(id),
+        eventTime(eventTime),
+        deviceId(deviceId),
+        source(source),
+        displayId(displayId),
+        policyFlags(policyFlags),
+        action(action),
+        flags(flags),
+        keyCode(keyCode),
+        scanCode(scanCode),
+        metaState(metaState),
+        downTime(downTime),
+        readTime(readTime) {}
+
+// --- NotifyMotionArgs ---
+
+NotifyMotionArgs::NotifyMotionArgs(
+        int32_t id, nsecs_t eventTime, nsecs_t readTime, 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, MotionClassification classification,
+        int32_t edgeFlags, uint32_t pointerCount, const PointerProperties* pointerProperties,
+        const PointerCoords* pointerCoords, float xPrecision, float yPrecision,
+        float xCursorPosition, float yCursorPosition, nsecs_t downTime,
+        const std::vector<TouchVideoFrame>& videoFrames)
+      : id(id),
+        eventTime(eventTime),
+        deviceId(deviceId),
+        source(source),
+        displayId(displayId),
+        policyFlags(policyFlags),
+        action(action),
+        actionButton(actionButton),
+        flags(flags),
+        metaState(metaState),
+        buttonState(buttonState),
+        classification(classification),
+        edgeFlags(edgeFlags),
+        pointerCount(pointerCount),
+        xPrecision(xPrecision),
+        yPrecision(yPrecision),
+        xCursorPosition(xCursorPosition),
+        yCursorPosition(yCursorPosition),
+        downTime(downTime),
+        readTime(readTime),
+        videoFrames(videoFrames) {
+    for (uint32_t i = 0; i < pointerCount; i++) {
+        this->pointerProperties[i].copyFrom(pointerProperties[i]);
+        this->pointerCoords[i].copyFrom(pointerCoords[i]);
+    }
+}
+
+NotifyMotionArgs::NotifyMotionArgs(const NotifyMotionArgs& other)
+      : id(other.id),
+        eventTime(other.eventTime),
+        deviceId(other.deviceId),
+        source(other.source),
+        displayId(other.displayId),
+        policyFlags(other.policyFlags),
+        action(other.action),
+        actionButton(other.actionButton),
+        flags(other.flags),
+        metaState(other.metaState),
+        buttonState(other.buttonState),
+        classification(other.classification),
+        edgeFlags(other.edgeFlags),
+        pointerCount(other.pointerCount),
+        xPrecision(other.xPrecision),
+        yPrecision(other.yPrecision),
+        xCursorPosition(other.xCursorPosition),
+        yCursorPosition(other.yCursorPosition),
+        downTime(other.downTime),
+        readTime(other.readTime),
+        videoFrames(other.videoFrames) {
+    for (uint32_t i = 0; i < pointerCount; i++) {
+        pointerProperties[i].copyFrom(other.pointerProperties[i]);
+        pointerCoords[i].copyFrom(other.pointerCoords[i]);
+    }
+}
+
+static inline bool isCursorPositionEqual(float lhs, float rhs) {
+    return (isnan(lhs) && isnan(rhs)) || lhs == rhs;
+}
+
+bool NotifyMotionArgs::operator==(const NotifyMotionArgs& rhs) const {
+    bool equal = id == rhs.id && eventTime == rhs.eventTime && readTime == rhs.readTime &&
+            deviceId == rhs.deviceId && source == rhs.source && displayId == rhs.displayId &&
+            policyFlags == rhs.policyFlags && action == rhs.action &&
+            actionButton == rhs.actionButton && flags == rhs.flags && metaState == rhs.metaState &&
+            buttonState == rhs.buttonState && classification == rhs.classification &&
+            edgeFlags == rhs.edgeFlags &&
+            pointerCount == rhs.pointerCount
+            // PointerProperties and PointerCoords are compared separately below
+            && xPrecision == rhs.xPrecision && yPrecision == rhs.yPrecision &&
+            isCursorPositionEqual(xCursorPosition, rhs.xCursorPosition) &&
+            isCursorPositionEqual(yCursorPosition, rhs.yCursorPosition) &&
+            downTime == rhs.downTime && videoFrames == rhs.videoFrames;
+    if (!equal) {
+        return false;
+    }
+
+    for (size_t i = 0; i < pointerCount; i++) {
+        equal = pointerProperties[i] == rhs.pointerProperties[i] &&
+                pointerCoords[i] == rhs.pointerCoords[i];
+        if (!equal) {
+            return false;
+        }
+    }
+    return true;
+}
+
+std::string NotifyMotionArgs::dump() const {
+    std::string coords;
+    for (uint32_t i = 0; i < pointerCount; i++) {
+        if (!coords.empty()) {
+            coords += ", ";
+        }
+        coords += StringPrintf("{%" PRIu32 ": ", i);
+        coords +=
+                StringPrintf("id=%" PRIu32 " x=%.1f y=%.1f pressure=%.1f", pointerProperties[i].id,
+                             pointerCoords[i].getX(), pointerCoords[i].getY(),
+                             pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_PRESSURE));
+        const int32_t toolType = pointerProperties[i].toolType;
+        if (toolType != AMOTION_EVENT_TOOL_TYPE_FINGER) {
+            coords += StringPrintf(" toolType=%s", motionToolTypeToString(toolType));
+        }
+        const float major = pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR);
+        const float minor = pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_TOUCH_MINOR);
+        const float orientation = pointerCoords[i].getAxisValue(AMOTION_EVENT_AXIS_ORIENTATION);
+        if (major != 0 || minor != 0) {
+            coords += StringPrintf(" major=%.1f minor=%.1f orientation=%.1f", major, minor,
+                                   orientation);
+        }
+        coords += "}";
+    }
+    return StringPrintf("NotifyMotionArgs(id=%" PRId32 ", eventTime=%" PRId64 ", deviceId=%" PRId32
+                        ", source=%s, action=%s, pointerCount=%" PRIu32
+                        " pointers=%s, flags=0x%08x)",
+                        id, eventTime, deviceId, inputEventSourceToString(source).c_str(),
+                        MotionEvent::actionToString(action).c_str(), pointerCount, coords.c_str(),
+                        flags);
+}
+
+// --- NotifySwitchArgs ---
+
+NotifySwitchArgs::NotifySwitchArgs(int32_t id, nsecs_t eventTime, uint32_t policyFlags,
+                                   uint32_t switchValues, uint32_t switchMask)
+      : id(id),
+        eventTime(eventTime),
+        policyFlags(policyFlags),
+        switchValues(switchValues),
+        switchMask(switchMask) {}
+
+// --- NotifySensorArgs ---
+
+NotifySensorArgs::NotifySensorArgs(int32_t id, nsecs_t eventTime, int32_t deviceId, uint32_t source,
+                                   InputDeviceSensorType sensorType,
+                                   InputDeviceSensorAccuracy accuracy, bool accuracyChanged,
+                                   nsecs_t hwTimestamp, std::vector<float> values)
+      : id(id),
+        eventTime(eventTime),
+        deviceId(deviceId),
+        source(source),
+        sensorType(sensorType),
+        accuracy(accuracy),
+        accuracyChanged(accuracyChanged),
+        hwTimestamp(hwTimestamp),
+        values(std::move(values)) {}
+
+// --- NotifyVibratorStateArgs ---
+
+NotifyVibratorStateArgs::NotifyVibratorStateArgs(int32_t id, nsecs_t eventTime, int32_t deviceId,
+                                                 bool isOn)
+      : id(id), eventTime(eventTime), deviceId(deviceId), isOn(isOn) {}
+
+// --- NotifyDeviceResetArgs ---
+
+NotifyDeviceResetArgs::NotifyDeviceResetArgs(int32_t id, nsecs_t eventTime, int32_t deviceId)
+      : id(id), eventTime(eventTime), deviceId(deviceId) {}
+
+// --- NotifyPointerCaptureChangedArgs ---
+
+NotifyPointerCaptureChangedArgs::NotifyPointerCaptureChangedArgs(
+        int32_t id, nsecs_t eventTime, const PointerCaptureRequest& request)
+      : id(id), eventTime(eventTime), request(request) {}
+
+} // namespace android