diff --git a/cmds/atrace/atrace.cpp b/cmds/atrace/atrace.cpp
index 28fdaa4..fc3572c 100644
--- a/cmds/atrace/atrace.cpp
+++ b/cmds/atrace/atrace.cpp
@@ -239,6 +239,10 @@
         { OPT,      "events/kmem/ion_heap_shrink/enable" },
         { OPT,      "events/ion/ion_stat/enable" },
     } },
+    { "thermal",  "Thermal event", 0, {
+        { REQ,      "events/thermal/thermal_temperature/enable" },
+        { OPT,      "events/thermal/cdev_update/enable" },
+    } },
 };
 
 struct TracingVendorCategory {
diff --git a/cmds/atrace/atrace.rc b/cmds/atrace/atrace.rc
index f442dae..d2ccef1 100644
--- a/cmds/atrace/atrace.rc
+++ b/cmds/atrace/atrace.rc
@@ -166,6 +166,12 @@
     chmod 0666 /sys/kernel/tracing/events/filemap/mm_filemap_delete_from_page_cache/enable
     chmod 0666 /sys/kernel/debug/tracing/events/filemap/mm_filemap_delete_from_page_cache/enable
 
+    # thermal
+    chmod 0666 /sys/kernel/debug/tracing/events/thermal/thermal_temperature/enable
+    chmod 0666 /sys/kernel/tracing/events/thermal/thermal_temperature/enable
+    chmod 0666 /sys/kernel/debug/tracing/events/thermal/cdev_update/enable
+    chmod 0666 /sys/kernel/tracing/events/thermal/cdev_update/enable
+
 # Tracing disabled by default
     write /sys/kernel/debug/tracing/tracing_on 0
     write /sys/kernel/tracing/tracing_on 0
diff --git a/cmds/lshal/Android.bp b/cmds/lshal/Android.bp
index 5afae4b..987adaf 100644
--- a/cmds/lshal/Android.bp
+++ b/cmds/lshal/Android.bp
@@ -75,7 +75,7 @@
     defaults: ["lshal_defaults"],
     gtest: true,
     static_libs: [
-        "android.hardware.tests.baz@1.0",
+        "android.hardware.tests.inheritance@1.0",
         "libgmock",
     ],
     shared_libs: [
diff --git a/cmds/lshal/DebugCommand.cpp b/cmds/lshal/DebugCommand.cpp
index af22ac9..72958bd 100644
--- a/cmds/lshal/DebugCommand.cpp
+++ b/cmds/lshal/DebugCommand.cpp
@@ -39,7 +39,7 @@
     // Optargs cannnot be used because the flag should not be considered set
     // if it should really be contained in mOptions.
     if (std::string(arg.argv[optind]) == "-E") {
-        mExcludesParentInstances = true;
+        mParentDebugInfoLevel = ParentDebugInfoLevel::NOTHING;
         optind++;
     }
 
@@ -67,7 +67,7 @@
 
     return mLshal.emitDebugInfo(
             pair.first, pair.second.empty() ? "default" : pair.second, mOptions,
-            mExcludesParentInstances,
+            mParentDebugInfoLevel,
             mLshal.out().buf(),
             mLshal.err());
 }
diff --git a/cmds/lshal/DebugCommand.h b/cmds/lshal/DebugCommand.h
index cd57e31..317cc28 100644
--- a/cmds/lshal/DebugCommand.h
+++ b/cmds/lshal/DebugCommand.h
@@ -21,6 +21,7 @@
 #include <android-base/macros.h>
 
 #include "Command.h"
+#include "ParentDebugInfoLevel.h"
 #include "utils.h"
 
 namespace android {
@@ -42,9 +43,8 @@
     std::string mInterfaceName;
     std::vector<std::string> mOptions;
 
-    // Outputs the actual descriptor of a hal instead of the debug output
-    // if the arguments provided are a superclass of the actual hal impl.
-    bool mExcludesParentInstances;
+    // See comment on ParentDebugInfoLevel.
+    ParentDebugInfoLevel mParentDebugInfoLevel = ParentDebugInfoLevel::FULL;
 
     DISALLOW_COPY_AND_ASSIGN(DebugCommand);
 };
diff --git a/cmds/lshal/ListCommand.cpp b/cmds/lshal/ListCommand.cpp
index fb11cee..a805a48 100644
--- a/cmds/lshal/ListCommand.cpp
+++ b/cmds/lshal/ListCommand.cpp
@@ -555,7 +555,7 @@
                 std::stringstream ss;
                 auto pair = splitFirst(iName, '/');
                 mLshal.emitDebugInfo(pair.first, pair.second, {},
-                                     false /* excludesParentInstances */, ss,
+                                     ParentDebugInfoLevel::FQNAME_ONLY, ss,
                                      NullableOStream<std::ostream>(nullptr));
                 return ss.str();
             };
diff --git a/cmds/lshal/Lshal.cpp b/cmds/lshal/Lshal.cpp
index 132b31e..2c3efe5 100644
--- a/cmds/lshal/Lshal.cpp
+++ b/cmds/lshal/Lshal.cpp
@@ -101,7 +101,7 @@
         const std::string &interfaceName,
         const std::string &instanceName,
         const std::vector<std::string> &options,
-        bool excludesParentInstances,
+        ParentDebugInfoLevel parentDebugInfoLevel,
         std::ostream &out,
         NullableOStream<std::ostream> err) const {
     using android::hidl::base::V1_0::IBase;
@@ -126,7 +126,7 @@
         return NO_INTERFACE;
     }
 
-    if (excludesParentInstances) {
+    if (parentDebugInfoLevel != ParentDebugInfoLevel::FULL) {
         const std::string descriptor = getDescriptor(base.get());
         if (descriptor.empty()) {
             std::string msg = interfaceName + "/" + instanceName + " getDescriptor failed";
@@ -134,6 +134,9 @@
             LOG(ERROR) << msg;
         }
         if (descriptor != interfaceName) {
+            if (parentDebugInfoLevel == ParentDebugInfoLevel::FQNAME_ONLY) {
+                out << "[See " << descriptor << "/" << instanceName << "]";
+            }
             return OK;
         }
     }
diff --git a/cmds/lshal/Lshal.h b/cmds/lshal/Lshal.h
index 830bd87..50279d4 100644
--- a/cmds/lshal/Lshal.h
+++ b/cmds/lshal/Lshal.h
@@ -25,6 +25,7 @@
 
 #include "Command.h"
 #include "NullableOStream.h"
+#include "ParentDebugInfoLevel.h"
 #include "utils.h"
 
 namespace android {
@@ -49,7 +50,7 @@
             const std::string &interfaceName,
             const std::string &instanceName,
             const std::vector<std::string> &options,
-            bool excludesParentInstances,
+            ParentDebugInfoLevel parentDebugInfoLevel,
             std::ostream &out,
             NullableOStream<std::ostream> err) const;
 
diff --git a/cmds/lshal/ParentDebugInfoLevel.h b/cmds/lshal/ParentDebugInfoLevel.h
new file mode 100644
index 0000000..12ac9c8
--- /dev/null
+++ b/cmds/lshal/ParentDebugInfoLevel.h
@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2020 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.
+ */
+#pragma once
+
+namespace android {
+namespace lshal {
+
+// Describe verbosity when dumping debug information on a HAL service by
+// referring to a parent HAL interface FQName (for example, when dumping debug information
+// on foo@1.0::IFoo but the HAL implementation is foo@1.1::IFoo).
+enum class ParentDebugInfoLevel {
+    // Write nothing.
+    NOTHING,
+    // Write a short description that includes the FQName of the real implementation.
+    FQNAME_ONLY,
+    // Write full debug info.
+    FULL,
+};
+
+} // namespace lshal
+} // namespace android
diff --git a/cmds/lshal/test.cpp b/cmds/lshal/test.cpp
index 3d550ba..afe5d63 100644
--- a/cmds/lshal/test.cpp
+++ b/cmds/lshal/test.cpp
@@ -24,7 +24,7 @@
 
 #include <gtest/gtest.h>
 #include <gmock/gmock.h>
-#include <android/hardware/tests/baz/1.0/IQuux.h>
+#include <android/hardware/tests/inheritance/1.0/IChild.h>
 #include <hidl/HidlTransportSupport.h>
 #include <vintf/parse_xml.h>
 
@@ -44,6 +44,7 @@
 using ::android::hardware::hidl_handle;
 using ::android::hardware::hidl_string;
 using ::android::hardware::hidl_vec;
+using ::android::hardware::Void;
 using android::vintf::Arch;
 using android::vintf::CompatibilityMatrix;
 using android::vintf::gCompatibilityMatrixConverter;
@@ -59,10 +60,14 @@
 namespace android {
 namespace hardware {
 namespace tests {
-namespace baz {
+namespace inheritance {
 namespace V1_0 {
 namespace implementation {
-struct Quux : android::hardware::tests::baz::V1_0::IQuux {
+struct Child : android::hardware::tests::inheritance::V1_0::IChild {
+    ::android::hardware::Return<void> doChild() override { return Void(); }
+    ::android::hardware::Return<void> doParent() override { return Void(); }
+    ::android::hardware::Return<void> doGrandparent() override { return Void(); }
+
     ::android::hardware::Return<void> debug(const hidl_handle& hh, const hidl_vec<hidl_string>& options) override {
         const native_handle_t *handle = hh.getNativeHandle();
         if (handle->numFds < 1) {
@@ -76,7 +81,7 @@
         }
         ssize_t written = write(fd, content.c_str(), content.size());
         if (written != (ssize_t)content.size()) {
-            LOG(WARNING) << "SERVER(Quux) debug writes " << written << " bytes < "
+            LOG(WARNING) << "SERVER(Child) debug writes " << written << " bytes < "
                     << content.size() << " bytes, errno = " << errno;
         }
         return Void();
@@ -85,7 +90,7 @@
 
 } // namespace implementation
 } // namespace V1_0
-} // namespace baz
+} // namespace inheritance
 } // namespace tests
 } // namespace hardware
 
@@ -124,18 +129,24 @@
 class DebugTest : public ::testing::Test {
 public:
     void SetUp() override {
-        using ::android::hardware::tests::baz::V1_0::IQuux;
-        using ::android::hardware::tests::baz::V1_0::implementation::Quux;
+        using ::android::hardware::tests::inheritance::V1_0::IChild;
+        using ::android::hardware::tests::inheritance::V1_0::IParent;
+        using ::android::hardware::tests::inheritance::V1_0::IGrandparent;
+        using ::android::hardware::tests::inheritance::V1_0::implementation::Child;
 
         err.str("");
         out.str("");
         serviceManager = new testing::NiceMock<MockServiceManager>();
-        ON_CALL(*serviceManager, get(_, _)).WillByDefault(Invoke(
-            [](const auto &iface, const auto &inst) -> ::android::hardware::Return<sp<IBase>> {
-                if (iface == IQuux::descriptor && inst == "default")
-                    return new Quux();
-                return nullptr;
-            }));
+        ON_CALL(*serviceManager, get(_, _))
+                .WillByDefault(
+                        Invoke([](const auto& iface,
+                                  const auto& inst) -> ::android::hardware::Return<sp<IBase>> {
+                            if (inst != "default") return nullptr;
+                            if (iface == IChild::descriptor || iface == IParent::descriptor ||
+                                iface == IGrandparent::descriptor)
+                                return new Child();
+                            return nullptr;
+                        }));
 
         lshal = std::make_unique<Lshal>(out, err, serviceManager, serviceManager);
     }
@@ -159,17 +170,17 @@
 
 TEST_F(DebugTest, Debug) {
     EXPECT_EQ(0u, callMain(lshal, {
-        "lshal", "debug", "android.hardware.tests.baz@1.0::IQuux/default", "foo", "bar"
+        "lshal", "debug", "android.hardware.tests.inheritance@1.0::IChild/default", "foo", "bar"
     }));
-    EXPECT_THAT(out.str(), StrEq("android.hardware.tests.baz@1.0::IQuux\nfoo\nbar"));
+    EXPECT_THAT(out.str(), StrEq("android.hardware.tests.inheritance@1.0::IChild\nfoo\nbar"));
     EXPECT_THAT(err.str(), IsEmpty());
 }
 
 TEST_F(DebugTest, Debug2) {
     EXPECT_EQ(0u, callMain(lshal, {
-        "lshal", "debug", "android.hardware.tests.baz@1.0::IQuux", "baz", "quux"
+        "lshal", "debug", "android.hardware.tests.inheritance@1.0::IChild", "baz", "quux"
     }));
-    EXPECT_THAT(out.str(), StrEq("android.hardware.tests.baz@1.0::IQuux\nbaz\nquux"));
+    EXPECT_THAT(out.str(), StrEq("android.hardware.tests.inheritance@1.0::IChild\nbaz\nquux"));
     EXPECT_THAT(err.str(), IsEmpty());
 }
 
@@ -180,6 +191,22 @@
     EXPECT_THAT(err.str(), HasSubstr("does not exist"));
 }
 
+TEST_F(DebugTest, DebugParent) {
+    EXPECT_EQ(0u, callMain(lshal, {
+        "lshal", "debug", "android.hardware.tests.inheritance@1.0::IParent", "calling parent"
+    }));
+    EXPECT_THAT(out.str(), StrEq("android.hardware.tests.inheritance@1.0::IChild\ncalling parent"));
+    EXPECT_THAT(err.str(), IsEmpty());
+}
+
+TEST_F(DebugTest, DebugParentExclude) {
+    EXPECT_EQ(0u, callMain(lshal, {
+        "lshal", "debug", "-E", "android.hardware.tests.inheritance@1.0::IParent", "excluding"
+    }));
+    EXPECT_THAT(out.str(), IsEmpty());
+    EXPECT_THAT(err.str(), IsEmpty());
+}
+
 class MockLshal : public Lshal {
 public:
     MockLshal() {}
@@ -766,6 +793,91 @@
     EXPECT_EQ("", err.str());
 }
 
+// Fake service returned by mocked IServiceManager::get for DumpDebug.
+// The interfaceChain and getHashChain functions returns
+// foo(id - 1) -> foo(id - 2) -> ... foo1 -> IBase.
+class InheritingService : public IBase {
+public:
+    explicit InheritingService(pid_t id) : mId(id) {}
+    android::hardware::Return<void> interfaceDescriptor(interfaceDescriptor_cb cb) override {
+        cb(getInterfaceName(mId));
+        return hardware::Void();
+    }
+    android::hardware::Return<void> interfaceChain(interfaceChain_cb cb) override {
+        std::vector<hidl_string> ret;
+        for (auto i = mId; i > 0; --i) {
+            ret.push_back(getInterfaceName(i));
+        }
+        ret.push_back(IBase::descriptor);
+        cb(ret);
+        return hardware::Void();
+    }
+    android::hardware::Return<void> getHashChain(getHashChain_cb cb) override {
+        std::vector<hidl_hash> ret;
+        for (auto i = mId; i > 0; --i) {
+            ret.push_back(getHashFromId(i));
+        }
+        ret.push_back(getHashFromId(0xff));
+        cb(ret);
+        return hardware::Void();
+    }
+    android::hardware::Return<void> debug(const hidl_handle& hh,
+                                          const hidl_vec<hidl_string>&) override {
+        const native_handle_t* handle = hh.getNativeHandle();
+        if (handle->numFds < 1) {
+            return Void();
+        }
+        int fd = handle->data[0];
+        std::string content = "debug info for ";
+        content += getInterfaceName(mId);
+        ssize_t written = write(fd, content.c_str(), content.size());
+        if (written != (ssize_t)content.size()) {
+            LOG(WARNING) << "SERVER(" << descriptor << ") debug writes " << written << " bytes < "
+                         << content.size() << " bytes, errno = " << errno;
+        }
+        return Void();
+    }
+
+private:
+    pid_t mId;
+};
+
+TEST_F(ListTest, DumpDebug) {
+    size_t inheritanceLevel = 3;
+    sp<IBase> service = new InheritingService(inheritanceLevel);
+
+    EXPECT_CALL(*serviceManager, list(_)).WillRepeatedly(Invoke([&](IServiceManager::list_cb cb) {
+        std::vector<hidl_string> ret;
+        for (auto i = 1; i <= inheritanceLevel; ++i) {
+            ret.push_back(getInterfaceName(i) + "/default");
+        }
+        cb(ret);
+        return hardware::Void();
+    }));
+    EXPECT_CALL(*serviceManager, get(_, _))
+            .WillRepeatedly(
+                    Invoke([&](const hidl_string&, const hidl_string& instance) -> sp<IBase> {
+                        int id = getIdFromInstanceName(instance);
+                        if (id > inheritanceLevel) return nullptr;
+                        return sp<IBase>(service);
+                    }));
+
+    const std::string expected = "[fake description 0]\n"
+                                 "Interface\n"
+                                 "a.h.foo1@1.0::IFoo/default\n"
+                                 "[See a.h.foo3@3.0::IFoo/default]\n"
+                                 "a.h.foo2@2.0::IFoo/default\n"
+                                 "[See a.h.foo3@3.0::IFoo/default]\n"
+                                 "a.h.foo3@3.0::IFoo/default\n"
+                                 "debug info for a.h.foo3@3.0::IFoo\n"
+                                 "\n";
+
+    optind = 1; // mimic Lshal::parseArg()
+    EXPECT_EQ(0u, mockList->main(createArg({"lshal", "--types=b", "-id"})));
+    EXPECT_EQ(expected, out.str());
+    EXPECT_EQ("", err.str());
+}
+
 class ListVintfTest : public ListTest {
 public:
     virtual void SetUp() override {
diff --git a/cmds/servicemanager/servicemanager.rc b/cmds/servicemanager/servicemanager.rc
index 152ac28..6d5070f 100644
--- a/cmds/servicemanager/servicemanager.rc
+++ b/cmds/servicemanager/servicemanager.rc
@@ -3,16 +3,11 @@
     user system
     group system readproc
     critical
-    onrestart restart healthd
-    onrestart restart zygote
+    onrestart restart apexd
     onrestart restart audioserver
-    onrestart restart media
-    onrestart restart surfaceflinger
-    onrestart restart inputflinger
-    onrestart restart drm
-    onrestart restart cameraserver
-    onrestart restart keystore
     onrestart restart gatekeeperd
-    onrestart restart thermalservice
+    onrestart class_restart main
+    onrestart class_restart hal
+    onrestart class_restart early_hal
     writepid /dev/cpuset/system-background/tasks
     shutdown critical
diff --git a/cmds/servicemanager/vndservicemanager.rc b/cmds/servicemanager/vndservicemanager.rc
index 3fa4d7d..756f6c3 100644
--- a/cmds/servicemanager/vndservicemanager.rc
+++ b/cmds/servicemanager/vndservicemanager.rc
@@ -3,4 +3,7 @@
     user system
     group system readproc
     writepid /dev/cpuset/system-background/tasks
+    onrestart class_restart main
+    onrestart class_restart hal
+    onrestart class_restart early_hal
     shutdown critical
diff --git a/include/android/hardware_buffer_jni.h b/include/android/hardware_buffer_jni.h
index 293e5ac..ae208a6 100644
--- a/include/android/hardware_buffer_jni.h
+++ b/include/android/hardware_buffer_jni.h
@@ -39,9 +39,9 @@
  * Return the AHardwareBuffer wrapped by a Java HardwareBuffer object.
  *
  * This method does not acquire any additional reference to the AHardwareBuffer
- * that is returned. To keep the AHardwareBuffer live after the Java
- * HardwareBuffer object got garbage collected, be sure to use AHardwareBuffer_acquire()
- * to acquire an additional reference.
+ * that is returned. To keep the AHardwareBuffer alive after the Java
+ * HardwareBuffer object is closed, explicitly or by the garbage collector, be
+ * sure to use AHardwareBuffer_acquire() to acquire an additional reference.
  *
  * Available since API level 26.
  */
@@ -50,7 +50,18 @@
 
 /**
  * Return a new Java HardwareBuffer object that wraps the passed native
- * AHardwareBuffer object.
+ * AHardwareBuffer object. The Java HardwareBuffer will acquire a reference to
+ * the internal buffer and manage its lifetime. For example:
+ *
+ * <pre><code>
+ * AHardwareBuffer* buffer;
+ * AHardwareBuffer_allocate(..., &buffer);  // `buffer` has reference count 1
+ * jobject java_result = AHardwareBuffer_toHardwareBuffer(buffer);  // `buffer` has reference count 2.
+ * AHardwareBuffer_release(buffer); // `buffer` has reference count 1
+ * return result;  // The underlying buffer is kept alive by `java_result` and
+ *                 // will be set to 0 when it is closed on the Java side with
+ *                 // HardwareBuffer::close().
+ * </code></pre>
  *
  * Available since API level 26.
  */
diff --git a/include/input/DisplayViewport.h b/include/input/DisplayViewport.h
index 2427a07..334fe34 100644
--- a/include/input/DisplayViewport.h
+++ b/include/input/DisplayViewport.h
@@ -17,12 +17,12 @@
 #ifndef _LIBINPUT_DISPLAY_VIEWPORT_H
 #define _LIBINPUT_DISPLAY_VIEWPORT_H
 
-#include <cinttypes>
-#include <optional>
-
 #include <android-base/stringprintf.h>
 #include <input/Input.h>
 
+#include <cinttypes>
+#include <optional>
+
 using android::base::StringPrintf;
 
 namespace android {
@@ -39,22 +39,21 @@
  * Keep in sync with values in InputManagerService.java.
  */
 enum class ViewportType : int32_t {
-    VIEWPORT_INTERNAL = 1,
-    VIEWPORT_EXTERNAL = 2,
-    VIEWPORT_VIRTUAL = 3,
+    INTERNAL = 1,
+    EXTERNAL = 2,
+    VIRTUAL = 3,
 };
 
 static const char* viewportTypeToString(ViewportType type) {
-    switch(type) {
-        case ViewportType::VIEWPORT_INTERNAL:
+    switch (type) {
+        case ViewportType::INTERNAL:
             return "INTERNAL";
-        case ViewportType::VIEWPORT_EXTERNAL:
+        case ViewportType::EXTERNAL:
             return "EXTERNAL";
-        case ViewportType::VIEWPORT_VIRTUAL:
+        case ViewportType::VIRTUAL:
             return "VIRTUAL";
-        default:
-            return "UNKNOWN";
     }
+    return "UNKNOWN";
 }
 
 /*
@@ -97,7 +96,7 @@
             isActive(false),
             uniqueId(),
             physicalPort(std::nullopt),
-            type(ViewportType::VIEWPORT_INTERNAL) {}
+            type(ViewportType::INTERNAL) {}
 
     bool operator==(const DisplayViewport& other) const {
         return displayId == other.displayId && orientation == other.orientation &&
@@ -134,7 +133,7 @@
         isActive = false;
         uniqueId.clear();
         physicalPort = std::nullopt;
-        type = ViewportType::VIEWPORT_INTERNAL;
+        type = ViewportType::INTERNAL;
     }
 
     std::string toString() const {
diff --git a/include/input/IInputFlinger.h b/include/input/IInputFlinger.h
deleted file mode 100644
index d23e3b7..0000000
--- a/include/input/IInputFlinger.h
+++ /dev/null
@@ -1,62 +0,0 @@
-/*
- * 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>
-
-#include <input/InputWindow.h>
-#include <input/ISetInputWindowsListener.h>
-
-namespace android {
-
-/*
- * This class defines the Binder IPC interface for accessing various
- * InputFlinger features.
- */
-class IInputFlinger : public IInterface {
-public:
-    DECLARE_META_INTERFACE(InputFlinger)
-
-    virtual void setInputWindows(const std::vector<InputWindowInfo>& inputHandles,
-            const sp<ISetInputWindowsListener>& setInputWindowsListener) = 0;
-    virtual void registerInputChannel(const sp<InputChannel>& channel) = 0;
-    virtual void unregisterInputChannel(const sp<InputChannel>& channel) = 0;
-};
-
-
-/**
- * Binder implementation.
- */
-class BnInputFlinger : public BnInterface<IInputFlinger> {
-public:
-    enum {
-        SET_INPUT_WINDOWS_TRANSACTION = IBinder::FIRST_CALL_TRANSACTION,
-        REGISTER_INPUT_CHANNEL_TRANSACTION,
-        UNREGISTER_INPUT_CHANNEL_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/ISetInputWindowsListener.h b/include/input/ISetInputWindowsListener.h
deleted file mode 100644
index 15d31b2..0000000
--- a/include/input/ISetInputWindowsListener.h
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
- * Copyright (C) 2019 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.
- */
-
-#pragma once
-
-#include <binder/IInterface.h>
-#include <binder/Parcel.h>
-
-namespace android {
-
-class ISetInputWindowsListener : public IInterface {
-public:
-    DECLARE_META_INTERFACE(SetInputWindowsListener)
-    virtual void onSetInputWindowsFinished() = 0;
-};
-
-class BnSetInputWindowsListener: public BnInterface<ISetInputWindowsListener> {
-public:
-    enum SetInputWindowsTag : uint32_t {
-        ON_SET_INPUT_WINDOWS_FINISHED
-    };
-
-    virtual status_t onTransact(uint32_t code, const Parcel& data, Parcel* reply,
-                                uint32_t flags = 0) override;
-};
-
-}; // namespace android
diff --git a/include/input/InputApplication.h b/include/input/InputApplication.h
index 86de394..b6b9353 100644
--- a/include/input/InputApplication.h
+++ b/include/input/InputApplication.h
@@ -21,6 +21,7 @@
 
 #include <binder/IBinder.h>
 #include <binder/Parcel.h>
+#include <binder/Parcelable.h>
 
 #include <input/Input.h>
 #include <utils/RefBase.h>
@@ -31,16 +32,18 @@
 /*
  * Describes the properties of an application that can receive input.
  */
-struct InputApplicationInfo {
+struct InputApplicationInfo : public Parcelable {
     sp<IBinder> token;
     std::string name;
-    nsecs_t dispatchingTimeout;
+    std::chrono::nanoseconds dispatchingTimeout;
 
-    status_t write(Parcel& output) const;
-    static InputApplicationInfo read(const Parcel& from);
+    InputApplicationInfo() = default;
+
+    status_t readFromParcel(const android::Parcel* parcel) override;
+
+    status_t writeToParcel(android::Parcel* parcel) const override;
 };
 
-
 /*
  * Handle for an application that can receive input.
  *
@@ -57,10 +60,6 @@
         return !mInfo.name.empty() ? mInfo.name : "<invalid>";
     }
 
-    inline nsecs_t getDispatchingTimeout(nsecs_t defaultValue) const {
-        return mInfo.token ? mInfo.dispatchingTimeout : defaultValue;
-    }
-
     inline std::chrono::nanoseconds getDispatchingTimeout(
             std::chrono::nanoseconds defaultValue) const {
         return mInfo.token ? std::chrono::nanoseconds(mInfo.dispatchingTimeout) : defaultValue;
@@ -80,6 +79,7 @@
      * Returns true on success, or false if the handle is no longer valid.
      */
     virtual bool updateInfo() = 0;
+
 protected:
     InputApplicationHandle();
     virtual ~InputApplicationHandle();
diff --git a/include/input/InputDevice.h b/include/input/InputDevice.h
index 20a17e3..c7685b7 100644
--- a/include/input/InputDevice.h
+++ b/include/input/InputDevice.h
@@ -144,10 +144,10 @@
 };
 
 /* Types of input device configuration files. */
-enum InputDeviceConfigurationFileType {
-    INPUT_DEVICE_CONFIGURATION_FILE_TYPE_CONFIGURATION = 0,     /* .idc file */
-    INPUT_DEVICE_CONFIGURATION_FILE_TYPE_KEY_LAYOUT = 1,        /* .kl file */
-    INPUT_DEVICE_CONFIGURATION_FILE_TYPE_KEY_CHARACTER_MAP = 2, /* .kcm file */
+enum class InputDeviceConfigurationFileType : int32_t {
+    CONFIGURATION = 0,     /* .idc file */
+    KEY_LAYOUT = 1,        /* .kl file */
+    KEY_CHARACTER_MAP = 2, /* .kcm file */
 };
 
 /*
diff --git a/include/input/InputTransport.h b/include/input/InputTransport.h
index 7ca9031..0219cf7 100644
--- a/include/input/InputTransport.h
+++ b/include/input/InputTransport.h
@@ -34,7 +34,9 @@
 #include <android-base/chrono_utils.h>
 
 #include <binder/IBinder.h>
+#include <binder/Parcelable.h>
 #include <input/Input.h>
+#include <sys/stat.h>
 #include <utils/BitSet.h>
 #include <utils/Errors.h>
 #include <utils/RefBase.h>
@@ -174,6 +176,18 @@
     void getSanitizedCopy(InputMessage* msg) const;
 };
 
+struct InputChannelInfo : public Parcelable {
+    std::string mName;
+    android::base::unique_fd mFd;
+    sp<IBinder> mToken;
+
+    InputChannelInfo() = default;
+    InputChannelInfo(const std::string& name, android::base::unique_fd fd, sp<IBinder> token)
+          : mName(name), mFd(std::move(fd)), mToken(token){};
+    status_t readFromParcel(const android::Parcel* parcel) override;
+    status_t writeToParcel(android::Parcel* parcel) const override;
+};
+
 /*
  * An input channel consists of a local unix domain socket used to send and receive
  * input messages across processes.  Each channel has a descriptive name for debugging purposes.
@@ -183,10 +197,10 @@
  * The input channel is closed when all references to it are released.
  */
 class InputChannel : public RefBase {
-protected:
+public:
+    InputChannel();
     virtual ~InputChannel();
 
-public:
     static sp<InputChannel> create(const std::string& name, android::base::unique_fd fd,
                                    sp<IBinder> token);
 
@@ -200,8 +214,10 @@
     static status_t openInputChannelPair(const std::string& name,
             sp<InputChannel>& outServerChannel, sp<InputChannel>& outClientChannel);
 
-    inline std::string getName() const { return mName; }
-    inline int getFd() const { return mFd.get(); }
+    inline std::string getName() const { return mInfo.mName; }
+    inline int getFd() const { return mInfo.mFd.get(); }
+    inline sp<IBinder> getToken() const { return mInfo.mToken; }
+    inline InputChannelInfo& getInfo() { return mInfo; }
 
     /* Send a message to the other endpoint.
      *
@@ -231,8 +247,9 @@
     /* Return a new object that has a duplicate of this channel's fd. */
     sp<InputChannel> dup() const;
 
-    status_t write(Parcel& out) const;
-    static sp<InputChannel> read(const Parcel& from);
+    status_t readFromParcel(const android::Parcel* parcel);
+
+    status_t writeToParcel(android::Parcel* parcel) const;
 
     /**
      * The connection token is used to identify the input connection, i.e.
@@ -248,12 +265,23 @@
      */
     sp<IBinder> getConnectionToken() const;
 
+    bool operator==(const InputChannel& inputChannel) const {
+        struct stat lhsInfo, rhsInfo;
+        if (fstat(mInfo.mFd.get(), &lhsInfo) != 0) {
+            return false;
+        }
+        if (fstat(inputChannel.getFd(), &rhsInfo) != 0) {
+            return false;
+        }
+        // If file descriptors are pointing to same inode they are duplicated fds.
+        return inputChannel.getName() == getName() &&
+                inputChannel.getConnectionToken() == mInfo.mToken &&
+                lhsInfo.st_ino == rhsInfo.st_ino;
+    }
+
 private:
     InputChannel(const std::string& name, android::base::unique_fd fd, sp<IBinder> token);
-    std::string mName;
-    android::base::unique_fd mFd;
-
-    sp<IBinder> mToken;
+    InputChannelInfo mInfo;
 };
 
 /*
@@ -325,7 +353,6 @@
     status_t receiveFinishedSignal(uint32_t* outSeq, bool* outHandled);
 
 private:
-
     sp<InputChannel> mChannel;
 };
 
diff --git a/include/input/InputWindow.h b/include/input/InputWindow.h
index 6740855..582e73d 100644
--- a/include/input/InputWindow.h
+++ b/include/input/InputWindow.h
@@ -17,6 +17,8 @@
 #ifndef _UI_INPUT_WINDOW_H
 #define _UI_INPUT_WINDOW_H
 
+#include <binder/Parcel.h>
+#include <binder/Parcelable.h>
 #include <input/Input.h>
 #include <input/InputTransport.h>
 #include <ui/Rect.h>
@@ -27,14 +29,12 @@
 #include "InputApplication.h"
 
 namespace android {
-class Parcel;
 
 /*
  * Describes the properties of a window that can receive input.
  */
-struct InputWindowInfo {
+struct InputWindowInfo : public Parcelable {
     InputWindowInfo() = default;
-    InputWindowInfo(const Parcel& from);
 
     // Window flags from WindowManager.LayoutParams
     enum : uint32_t {
@@ -136,7 +136,7 @@
     std::string name;
     int32_t layoutParamsFlags = 0;
     int32_t layoutParamsType = 0;
-    nsecs_t dispatchingTimeout = -1;
+    std::chrono::nanoseconds dispatchingTimeout = std::chrono::seconds(5);
 
     /* These values are filled in by SurfaceFlinger. */
     int32_t frameLeft = -1;
@@ -195,9 +195,11 @@
 
     bool overlaps(const InputWindowInfo* other) const;
 
-    status_t write(Parcel& output) const;
+    bool operator==(const InputWindowInfo& inputChannel) const;
 
-    static InputWindowInfo read(const Parcel& from);
+    status_t writeToParcel(android::Parcel* parcel) const override;
+
+    status_t readFromParcel(const android::Parcel* parcel) override;
 };
 
 std::string inputWindowFlagsToString(uint32_t flags);
@@ -210,26 +212,19 @@
  */
 class InputWindowHandle : public RefBase {
 public:
+    explicit InputWindowHandle();
+    InputWindowHandle(const InputWindowHandle& other);
+    InputWindowHandle(const InputWindowInfo& other);
 
-    inline const InputWindowInfo* getInfo() const {
-        return &mInfo;
-    }
+    inline const InputWindowInfo* getInfo() const { return &mInfo; }
 
     sp<IBinder> getToken() const;
 
     int32_t getId() const { return mInfo.id; }
 
-    sp<IBinder> getApplicationToken() {
-        return mInfo.applicationInfo.token;
-    }
+    sp<IBinder> getApplicationToken() { return mInfo.applicationInfo.token; }
 
-    inline std::string getName() const {
-        return !mInfo.name.empty() ? mInfo.name : "<invalid>";
-    }
-
-    inline nsecs_t getDispatchingTimeout(nsecs_t defaultValue) const {
-        return mInfo.token ? mInfo.dispatchingTimeout : defaultValue;
-    }
+    inline std::string getName() const { return !mInfo.name.empty() ? mInfo.name : "<invalid>"; }
 
     inline std::chrono::nanoseconds getDispatchingTimeout(
             std::chrono::nanoseconds defaultValue) const {
@@ -239,13 +234,14 @@
     /**
      * Requests that the state of this object be updated to reflect
      * the most current available information about the application.
+     * As this class is created as RefBase object, no pure virtual function is allowed.
      *
      * This method should only be called from within the input dispatcher's
      * critical section.
      *
      * Returns true on success, or false if the handle is no longer valid.
      */
-    virtual bool updateInfo() = 0;
+    virtual bool updateInfo() { return false; }
 
     /**
      * Updates from another input window handle.
@@ -258,8 +254,11 @@
      */
     void releaseChannel();
 
+    // Not override since this class is not derrived from Parcelable.
+    status_t readFromParcel(const android::Parcel* parcel);
+    status_t writeToParcel(android::Parcel* parcel) const;
+
 protected:
-    explicit InputWindowHandle();
     virtual ~InputWindowHandle();
 
     InputWindowInfo mInfo;
diff --git a/libs/binder/MemoryDealer.cpp b/libs/binder/MemoryDealer.cpp
index ebf91f9..b46b3e8 100644
--- a/libs/binder/MemoryDealer.cpp
+++ b/libs/binder/MemoryDealer.cpp
@@ -387,7 +387,7 @@
     while (cur) {
         if (cur->start == start) {
             LOG_FATAL_IF(cur->free,
-                "block at offset 0x%08lX of size 0x%08lX already freed",
+                "block at offset 0x%08lX of size 0x%08X already freed",
                 cur->start*kMemoryAlign, cur->size*kMemoryAlign);
 
             // merge freed blocks together
@@ -411,7 +411,7 @@
                 }
             #endif
             LOG_FATAL_IF(!freed->free,
-                "freed block at offset 0x%08lX of size 0x%08lX is not free!",
+                "freed block at offset 0x%08lX of size 0x%08X is not free!",
                 freed->start * kMemoryAlign, freed->size * kMemoryAlign);
 
             return freed;
diff --git a/libs/binder/include/binder/IInterface.h b/libs/binder/include/binder/IInterface.h
index 7116154..33ee680 100644
--- a/libs/binder/include/binder/IInterface.h
+++ b/libs/binder/include/binder/IInterface.h
@@ -247,8 +247,6 @@
   "android.hardware.ISoundTriggerHwService",
   "android.hardware.IStreamListener",
   "android.hardware.IStreamSource",
-  "android.input.IInputFlinger",
-  "android.input.ISetInputWindowsListener",
   "android.media.IAudioFlinger",
   "android.media.IAudioFlingerClient",
   "android.media.IAudioPolicyService",
@@ -282,7 +280,6 @@
   "android.os.IComplexTypeInterface",
   "android.os.IPermissionController",
   "android.os.IPingResponder",
-  "android.os.IPowerManager",
   "android.os.IProcessInfoService",
   "android.os.ISchedulingPolicyService",
   "android.os.IStringConstants",
diff --git a/libs/binder/include/binder/IPCThreadState.h b/libs/binder/include/binder/IPCThreadState.h
index b4e4a42..8d51cdc 100644
--- a/libs/binder/include/binder/IPCThreadState.h
+++ b/libs/binder/include/binder/IPCThreadState.h
@@ -50,7 +50,7 @@
              * Returns the SELinux security identifier of the process which has
              * made the current binder call. If not in a binder call this will
              * return nullptr. If this isn't requested with
-             * IBinder::setRequestingSid, it will also return nullptr.
+             * Binder::setRequestingSid, it will also return nullptr.
              *
              * This can't be restored once it's cleared, and it does not return the
              * context of the current process when not in a binder call.
diff --git a/libs/binder/ndk/Android.bp b/libs/binder/ndk/Android.bp
index b37db43..4fd0657 100644
--- a/libs/binder/ndk/Android.bp
+++ b/libs/binder/ndk/Android.bp
@@ -36,6 +36,7 @@
     host_supported: true,
 
     export_include_dirs: [
+        "include_cpp",
         "include_ndk",
         "include_platform",
     ],
@@ -101,6 +102,17 @@
     license: "NOTICE",
 }
 
+// TODO(b/160624671): package with the aidl compiler
+ndk_headers {
+    name: "libbinder_ndk_helper_headers",
+    from: "include_cpp/android",
+    to: "android",
+    srcs: [
+        "include_cpp/android/*.h",
+    ],
+    license: "NOTICE",
+}
+
 ndk_library {
     name: "libbinder_ndk",
     symbol_file: "libbinder_ndk.map.txt",
@@ -111,6 +123,7 @@
     name: "libbinder_ndk",
     symbol_file: "libbinder_ndk.map.txt",
     export_include_dirs: [
+        "include_cpp",
         "include_ndk",
         "include_platform",
     ],
diff --git a/libs/binder/ndk/ibinder.cpp b/libs/binder/ndk/ibinder.cpp
index 649faa1..7540cae 100644
--- a/libs/binder/ndk/ibinder.cpp
+++ b/libs/binder/ndk/ibinder.cpp
@@ -15,6 +15,7 @@
  */
 
 #include <android/binder_ibinder.h>
+#include <android/binder_ibinder_platform.h>
 #include "ibinder_internal.h"
 
 #include <android/binder_stability.h>
@@ -99,8 +100,14 @@
 
     String8 descriptor(getBinder()->getInterfaceDescriptor());
     if (descriptor != newDescriptor) {
-        LOG(ERROR) << __func__ << ": Expecting binder to have class '" << newDescriptor.c_str()
-                   << "' but descriptor is actually '" << descriptor.c_str() << "'.";
+        if (getBinder()->isBinderAlive()) {
+            LOG(ERROR) << __func__ << ": Expecting binder to have class '" << newDescriptor.c_str()
+                       << "' but descriptor is actually '" << descriptor.c_str() << "'.";
+        } else {
+            // b/155793159
+            LOG(ERROR) << __func__ << ": Cannot associate class '" << newDescriptor.c_str()
+                       << "' to dead binder.";
+        }
         return false;
     }
 
@@ -676,3 +683,18 @@
     rawBinder->setExtension(ext->getBinder());
     return STATUS_OK;
 }
+
+// platform methods follow
+
+void AIBinder_setRequestingSid(AIBinder* binder, bool requestingSid) {
+    ABBinder* localBinder = binder->asABBinder();
+    if (localBinder == nullptr) {
+        LOG(FATAL) << "AIBinder_setRequestingSid must be called on a local binder";
+    }
+
+    localBinder->setRequestingSid(requestingSid);
+}
+
+const char* AIBinder_getCallingSid() {
+    return ::android::IPCThreadState::self()->getCallingSid();
+}
diff --git a/libs/binder/ndk/include_ndk/android/binder_auto_utils.h b/libs/binder/ndk/include_cpp/android/binder_auto_utils.h
similarity index 100%
rename from libs/binder/ndk/include_ndk/android/binder_auto_utils.h
rename to libs/binder/ndk/include_cpp/android/binder_auto_utils.h
diff --git a/libs/binder/ndk/include_ndk/android/binder_enums.h b/libs/binder/ndk/include_cpp/android/binder_enums.h
similarity index 100%
rename from libs/binder/ndk/include_ndk/android/binder_enums.h
rename to libs/binder/ndk/include_cpp/android/binder_enums.h
diff --git a/libs/binder/ndk/include_ndk/android/binder_interface_utils.h b/libs/binder/ndk/include_cpp/android/binder_interface_utils.h
similarity index 100%
rename from libs/binder/ndk/include_ndk/android/binder_interface_utils.h
rename to libs/binder/ndk/include_cpp/android/binder_interface_utils.h
diff --git a/libs/binder/ndk/include_ndk/android/binder_parcel_utils.h b/libs/binder/ndk/include_cpp/android/binder_parcel_utils.h
similarity index 100%
rename from libs/binder/ndk/include_ndk/android/binder_parcel_utils.h
rename to libs/binder/ndk/include_cpp/android/binder_parcel_utils.h
diff --git a/libs/binder/ndk/include_ndk/android/binder_ibinder.h b/libs/binder/ndk/include_ndk/android/binder_ibinder.h
index 13dbec1..33763d5 100644
--- a/libs/binder/ndk/include_ndk/android/binder_ibinder.h
+++ b/libs/binder/ndk/include_ndk/android/binder_ibinder.h
@@ -408,6 +408,8 @@
  * This returns true if the class association succeeds. If it fails, no change is made to the
  * binder object.
  *
+ * Warning: this may fail if the binder is dead.
+ *
  * Available since API level 29.
  *
  * \param binder the object to attach the class to.
diff --git a/libs/binder/ndk/include_platform/android/binder_ibinder_platform.h b/libs/binder/ndk/include_platform/android/binder_ibinder_platform.h
new file mode 100644
index 0000000..1f5a237
--- /dev/null
+++ b/libs/binder/ndk/include_platform/android/binder_ibinder_platform.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2020 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.
+ */
+
+#pragma once
+
+#include <android/binder_ibinder.h>
+
+__BEGIN_DECLS
+
+/**
+ * Makes calls to AIBinder_getCallingSid work if the kernel supports it. This
+ * must be called on a local binder server before it is sent out to any othe
+ * process. If this is a remote binder, it will abort. If the kernel doesn't
+ * support this feature, you'll always get null from AIBinder_getCallingSid.
+ *
+ * \param binder local server binder to request security contexts on
+ */
+void AIBinder_setRequestingSid(AIBinder* binder, bool requestingSid) __INTRODUCED_IN(31);
+
+/**
+ * Returns the selinux context of the callee.
+ *
+ * In order for this to work, the following conditions must be met:
+ * - The kernel must be new enough to support this feature.
+ * - The server must have called AIBinder_setRequestingSid.
+ * - The callee must be a remote process.
+ *
+ * \return security context or null if unavailable. The lifetime of this context
+ * is the lifetime of the transaction.
+ */
+__attribute__((warn_unused_result)) const char* AIBinder_getCallingSid() __INTRODUCED_IN(31);
+
+__END_DECLS
diff --git a/libs/binder/ndk/libbinder_ndk.map.txt b/libs/binder/ndk/libbinder_ndk.map.txt
index a9eba47..d58b75c 100644
--- a/libs/binder/ndk/libbinder_ndk.map.txt
+++ b/libs/binder/ndk/libbinder_ndk.map.txt
@@ -115,6 +115,14 @@
     *;
 };
 
+LIBBINDER_NDK31 { # introduced=31
+  global:
+    AIBinder_getCallingSid; # apex
+    AIBinder_setRequestingSid; # apex
+  local:
+    *;
+};
+
 LIBBINDER_NDK_PLATFORM {
   global:
     AParcel_getAllowFds;
diff --git a/libs/binder/ndk/tests/IBinderNdkUnitTest.aidl b/libs/binder/ndk/tests/IBinderNdkUnitTest.aidl
index 6e8e463..4bba9e4 100644
--- a/libs/binder/ndk/tests/IBinderNdkUnitTest.aidl
+++ b/libs/binder/ndk/tests/IBinderNdkUnitTest.aidl
@@ -24,4 +24,6 @@
 interface IBinderNdkUnitTest {
     void takeInterface(IEmpty test);
     void forceFlushCommands();
+
+    boolean getsRequestedSid();
 }
diff --git a/libs/binder/ndk/tests/libbinder_ndk_unit_test.cpp b/libs/binder/ndk/tests/libbinder_ndk_unit_test.cpp
index fd30d87..6869220 100644
--- a/libs/binder/ndk/tests/libbinder_ndk_unit_test.cpp
+++ b/libs/binder/ndk/tests/libbinder_ndk_unit_test.cpp
@@ -19,6 +19,7 @@
 #include <aidl/BnEmpty.h>
 #include <android-base/logging.h>
 #include <android/binder_ibinder_jni.h>
+#include <android/binder_ibinder_platform.h>
 #include <android/binder_manager.h>
 #include <android/binder_process.h>
 #include <gtest/gtest.h>
@@ -34,6 +35,7 @@
 #include <sys/prctl.h>
 #include <chrono>
 #include <condition_variable>
+#include <iostream>
 #include <mutex>
 
 using namespace android;
@@ -52,6 +54,12 @@
         android::IPCThreadState::self()->flushCommands();
         return ndk::ScopedAStatus::ok();
     }
+    ndk::ScopedAStatus getsRequestedSid(bool* out) {
+        const char* sid = AIBinder_getCallingSid();
+        std::cout << "Got security context: " << (sid ?: "null") << std::endl;
+        *out = sid != nullptr;
+        return ndk::ScopedAStatus::ok();
+    }
     binder_status_t handleShellCommand(int /*in*/, int out, int /*err*/, const char** args,
                                        uint32_t numArgs) override {
         for (uint32_t i = 0; i < numArgs; i++) {
@@ -66,8 +74,11 @@
     ABinderProcess_setThreadPoolMaxThreadCount(0);
 
     auto service = ndk::SharedRefBase::make<MyBinderNdkUnitTest>();
-    binder_status_t status =
-            AServiceManager_addService(service->asBinder().get(), kBinderNdkUnitTestService);
+    auto binder = service->asBinder();
+
+    AIBinder_setRequestingSid(binder.get(), true);
+
+    binder_status_t status = AServiceManager_addService(binder.get(), kBinderNdkUnitTestService);
 
     if (status != STATUS_OK) {
         LOG(FATAL) << "Could not register: " << status << " " << kBinderNdkUnitTestService;
@@ -274,6 +285,16 @@
     EXPECT_EQ(IFoo::getService(kInstanceName1), IFoo::getService(kInstanceName2));
 }
 
+TEST(NdkBinder, RequestedSidWorks) {
+    ndk::SpAIBinder binder(AServiceManager_getService(kBinderNdkUnitTestService));
+    std::shared_ptr<aidl::IBinderNdkUnitTest> service =
+            aidl::IBinderNdkUnitTest::fromBinder(binder);
+
+    bool gotSid = false;
+    EXPECT_TRUE(service->getsRequestedSid(&gotSid).isOk());
+    EXPECT_TRUE(gotSid);
+}
+
 TEST(NdkBinder, SentAidlBinderCanBeDestroyed) {
     static volatile bool destroyed = false;
     static std::mutex dMutex;
diff --git a/libs/binderthreadstate/test.cpp b/libs/binderthreadstate/test.cpp
index 68cc225..44e2fd1 100644
--- a/libs/binderthreadstate/test.cpp
+++ b/libs/binderthreadstate/test.cpp
@@ -165,7 +165,6 @@
     android::ProcessState::self()->startThreadPool();
 
     // HIDL
-    setenv("TREBLE_TESTING_OVERRIDE", "true", true);
     android::hardware::configureRpcThreadpool(1, true /*callerWillJoin*/);
     sp<IHidlStuff> hidlServer = new HidlServer(thisId, otherId);
     CHECK(OK == hidlServer->registerAsService(id2name(thisId).c_str()));
@@ -176,7 +175,7 @@
 
 int main(int argc, char** argv) {
     ::testing::InitGoogleTest(&argc, argv);
-    setenv("TREBLE_TESTING_OVERRIDE", "true", true);
+    android::hardware::details::setTrebleTestingOverride(true);
     if (fork() == 0) {
         prctl(PR_SET_PDEATHSIG, SIGHUP);
         return server(kP1Id, kP2Id);
diff --git a/libs/gui/LayerState.cpp b/libs/gui/LayerState.cpp
index e43446a..1030b82 100644
--- a/libs/gui/LayerState.cpp
+++ b/libs/gui/LayerState.cpp
@@ -55,7 +55,7 @@
     output.writeFloat(color.g);
     output.writeFloat(color.b);
 #ifndef NO_INPUT
-    inputInfo.write(output);
+    inputHandle->writeToParcel(&output);
 #endif
     output.write(transparentRegion);
     output.writeUint32(transform);
@@ -152,7 +152,7 @@
     color.b = input.readFloat();
 
 #ifndef NO_INPUT
-    inputInfo = InputWindowInfo::read(input);
+    inputHandle->readFromParcel(&input);
 #endif
 
     input.read(transparentRegion);
@@ -404,7 +404,7 @@
 #ifndef NO_INPUT
     if (other.what & eInputInfoChanged) {
         what |= eInputInfoChanged;
-        inputInfo = other.inputInfo;
+        inputHandle = new InputWindowHandle(*other.inputHandle);
     }
 #endif
 
diff --git a/libs/gui/SurfaceComposerClient.cpp b/libs/gui/SurfaceComposerClient.cpp
index 16b46df..d797a35 100644
--- a/libs/gui/SurfaceComposerClient.cpp
+++ b/libs/gui/SurfaceComposerClient.cpp
@@ -1359,7 +1359,7 @@
         mStatus = BAD_INDEX;
         return *this;
     }
-    s->inputInfo = info;
+    s->inputHandle = new InputWindowHandle(info);
     s->what |= layer_state_t::eInputInfoChanged;
     return *this;
 }
diff --git a/libs/gui/include/gui/LayerState.h b/libs/gui/include/gui/LayerState.h
index e60f677..00ae220 100644
--- a/libs/gui/include/gui/LayerState.h
+++ b/libs/gui/include/gui/LayerState.h
@@ -201,7 +201,7 @@
     mat4 colorTransform;
 
 #ifndef NO_INPUT
-    InputWindowInfo inputInfo;
+    sp<InputWindowHandle> inputHandle = new InputWindowHandle();
 #endif
 
     client_cache_t cachedBuffer;
diff --git a/libs/gui/tests/EndToEndNativeInputTest.cpp b/libs/gui/tests/EndToEndNativeInputTest.cpp
index b1d3ecb..152f7ad 100644
--- a/libs/gui/tests/EndToEndNativeInputTest.cpp
+++ b/libs/gui/tests/EndToEndNativeInputTest.cpp
@@ -36,15 +36,16 @@
 #include <gui/SurfaceComposerClient.h>
 #include <gui/SurfaceControl.h>
 
-#include <input/InputWindow.h>
-#include <input/IInputFlinger.h>
-#include <input/InputTransport.h>
+#include <android/os/IInputFlinger.h>
 #include <input/Input.h>
+#include <input/InputTransport.h>
+#include <input/InputWindow.h>
 
 #include <ui/DisplayConfig.h>
 #include <ui/Rect.h>
 #include <ui/Region.h>
 
+using android::os::IInputFlinger;
 
 namespace android {
 namespace test {
@@ -71,7 +72,7 @@
         InputChannel::openInputChannelPair("testchannels", mServerChannel, mClientChannel);
 
         mInputFlinger = getInputFlinger();
-        mInputFlinger->registerInputChannel(mServerChannel);
+        mInputFlinger->registerInputChannel(mServerChannel->getInfo());
 
         populateInputInfo(width, height);
 
@@ -153,9 +154,7 @@
         EXPECT_EQ(0, mev->getFlags() & VERIFIED_MOTION_EVENT_FLAGS);
     }
 
-    ~InputSurface() {
-        mInputFlinger->unregisterInputChannel(mServerChannel);
-    }
+    ~InputSurface() { mInputFlinger->unregisterInputChannel(mServerChannel->getInfo()); }
 
     void doTransaction(std::function<void(SurfaceComposerClient::Transaction&,
                     const sp<SurfaceControl>&)> transactionBody) {
@@ -189,7 +188,7 @@
         mInputInfo.name = "Test info";
         mInputInfo.layoutParamsFlags = InputWindowInfo::FLAG_NOT_TOUCH_MODAL;
         mInputInfo.layoutParamsType = InputWindowInfo::TYPE_BASE_APPLICATION;
-        mInputInfo.dispatchingTimeout = seconds_to_nanoseconds(5);
+        mInputInfo.dispatchingTimeout = 5s;
         mInputInfo.globalScaleFactor = 1.0;
         mInputInfo.canReceiveKeys = true;
         mInputInfo.hasFocus = true;
@@ -207,7 +206,7 @@
         InputApplicationInfo aInfo;
         aInfo.token = new BBinder();
         aInfo.name = "Test app info";
-        aInfo.dispatchingTimeout = seconds_to_nanoseconds(5);
+        aInfo.dispatchingTimeout = 5s;
 
         mInputInfo.applicationInfo = aInfo;
     }
diff --git a/libs/input/Android.bp b/libs/input/Android.bp
index 7037680..ade9c25 100644
--- a/libs/input/Android.bp
+++ b/libs/input/Android.bp
@@ -46,14 +46,14 @@
     target: {
         android: {
             srcs: [
-                "IInputFlinger.cpp",
                 "InputApplication.cpp",
                 "InputTransport.cpp",
                 "InputWindow.cpp",
-                "ISetInputWindowsListener.cpp",
                 "LatencyStatistics.cpp",
                 "VelocityControl.cpp",
                 "VelocityTracker.cpp",
+                "android/os/IInputFlinger.aidl",
+                "android/os/ISetInputWindowsListener.aidl",
             ],
 
             shared_libs: [
@@ -72,6 +72,11 @@
             },
         },
     },
+
+    aidl: {
+        local_include_dirs: ["."],
+        export_aidl_headers: true
+    },
 }
 
 subdirs = ["tests"]
diff --git a/libs/input/IInputFlinger.cpp b/libs/input/IInputFlinger.cpp
deleted file mode 100644
index 8ec5165..0000000
--- a/libs/input/IInputFlinger.cpp
+++ /dev/null
@@ -1,101 +0,0 @@
-/*
- * 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:
-    explicit BpInputFlinger(const sp<IBinder>& impl) :
-            BpInterface<IInputFlinger>(impl) { }
-
-    virtual void setInputWindows(const std::vector<InputWindowInfo>& inputInfo,
-            const sp<ISetInputWindowsListener>& setInputWindowsListener) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IInputFlinger::getInterfaceDescriptor());
-
-        data.writeUint32(static_cast<uint32_t>(inputInfo.size()));
-        for (const auto& info : inputInfo) {
-            info.write(data);
-        }
-        data.writeStrongBinder(IInterface::asBinder(setInputWindowsListener));
-
-        remote()->transact(BnInputFlinger::SET_INPUT_WINDOWS_TRANSACTION, data, &reply,
-                IBinder::FLAG_ONEWAY);
-    }
-
-    virtual void registerInputChannel(const sp<InputChannel>& channel) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IInputFlinger::getInterfaceDescriptor());
-        channel->write(data);
-        remote()->transact(BnInputFlinger::REGISTER_INPUT_CHANNEL_TRANSACTION, data, &reply);
-    }
-
-    virtual void unregisterInputChannel(const sp<InputChannel>& channel) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IInputFlinger::getInterfaceDescriptor());
-        channel->write(data);
-        remote()->transact(BnInputFlinger::UNREGISTER_INPUT_CHANNEL_TRANSACTION, data, &reply);
-    }
-};
-
-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 SET_INPUT_WINDOWS_TRANSACTION: {
-        CHECK_INTERFACE(IInputFlinger, data, reply);
-        size_t count = data.readUint32();
-        if (count > data.dataSize()) {
-            return BAD_VALUE;
-        }
-        std::vector<InputWindowInfo> handles;
-        for (size_t i = 0; i < count; i++) {
-            handles.push_back(InputWindowInfo::read(data));
-        }
-        const sp<ISetInputWindowsListener> setInputWindowsListener =
-                ISetInputWindowsListener::asInterface(data.readStrongBinder());
-        setInputWindows(handles, setInputWindowsListener);
-        break;
-    }
-    case REGISTER_INPUT_CHANNEL_TRANSACTION: {
-        CHECK_INTERFACE(IInputFlinger, data, reply);
-        sp<InputChannel> channel = InputChannel::read(data);
-        registerInputChannel(channel);
-        break;
-    }
-    case UNREGISTER_INPUT_CHANNEL_TRANSACTION: {
-        CHECK_INTERFACE(IInputFlinger, data, reply);
-        sp<InputChannel> channel = InputChannel::read(data);
-        unregisterInputChannel(channel);
-        break;
-    }
-    default:
-        return BBinder::onTransact(code, data, reply, flags);
-    }
-    return NO_ERROR;
-}
-
-};
diff --git a/libs/input/ISetInputWindowsListener.cpp b/libs/input/ISetInputWindowsListener.cpp
deleted file mode 100644
index a0330da..0000000
--- a/libs/input/ISetInputWindowsListener.cpp
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
- * Copyright (C) 2019 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 <input/ISetInputWindowsListener.h>
-
-namespace android {
-
-class BpSetInputWindowsListener : public BpInterface<ISetInputWindowsListener> {
-public:
-    explicit BpSetInputWindowsListener(const sp<IBinder>& impl)
-        : BpInterface<ISetInputWindowsListener>(impl) {
-    }
-
-    virtual ~BpSetInputWindowsListener() = default;
-
-    virtual void onSetInputWindowsFinished() {
-        Parcel data, reply;
-        data.writeInterfaceToken(ISetInputWindowsListener::getInterfaceDescriptor());
-        remote()->transact(BnSetInputWindowsListener::ON_SET_INPUT_WINDOWS_FINISHED, data, &reply,
-                IBinder::FLAG_ONEWAY);
-    }
-};
-
-IMPLEMENT_META_INTERFACE(SetInputWindowsListener, "android.input.ISetInputWindowsListener");
-
-status_t BnSetInputWindowsListener::onTransact(uint32_t code, const Parcel& data, Parcel* reply,
-        uint32_t flags) {
-    switch(code) {
-        case ON_SET_INPUT_WINDOWS_FINISHED: {
-            CHECK_INTERFACE(ISetInputWindowsListener, data, reply);
-            onSetInputWindowsFinished();
-            return NO_ERROR;
-        }
-        default: {
-            return BBinder::onTransact(code, data, reply, flags);
-        }
-    }
-}
-
-} // namespace android
diff --git a/libs/input/InputApplication.cpp b/libs/input/InputApplication.cpp
index 1d9f8a7..41721a7 100644
--- a/libs/input/InputApplication.cpp
+++ b/libs/input/InputApplication.cpp
@@ -22,29 +22,34 @@
 
 namespace android {
 
+status_t InputApplicationInfo::readFromParcel(const android::Parcel* parcel) {
+    if (parcel == nullptr) {
+        ALOGE("%s: Null parcel", __func__);
+        return BAD_VALUE;
+    }
+    token = parcel->readStrongBinder();
+    dispatchingTimeout = decltype(dispatchingTimeout)(parcel->readInt64());
+    status_t status = parcel->readUtf8FromUtf16(&name);
+
+    return status;
+}
+
+status_t InputApplicationInfo::writeToParcel(android::Parcel* parcel) const {
+    if (parcel == nullptr) {
+        ALOGE("%s: Null parcel", __func__);
+        return BAD_VALUE;
+    }
+    status_t status = parcel->writeStrongBinder(token)
+            ?: parcel->writeInt64(dispatchingTimeout.count())
+            ?: parcel->writeUtf8AsUtf16(name) ;
+
+    return status;
+}
+
 // --- InputApplicationHandle ---
 
-InputApplicationHandle::InputApplicationHandle() {
-}
+InputApplicationHandle::InputApplicationHandle() {}
 
-InputApplicationHandle::~InputApplicationHandle() {
-}
-
-InputApplicationInfo InputApplicationInfo::read(const Parcel& from) {
-    InputApplicationInfo ret;
-    ret.token = from.readStrongBinder();
-    ret.name = from.readString8().c_str();
-    ret.dispatchingTimeout = from.readInt64();
-
-    return ret;
-}
-
-status_t InputApplicationInfo::write(Parcel& output) const {
-    output.writeStrongBinder(token);
-    output.writeString8(String8(name.c_str()));
-    output.writeInt64(dispatchingTimeout);
-    
-    return OK;
-}
+InputApplicationHandle::~InputApplicationHandle() {}
 
 } // namespace android
diff --git a/libs/input/InputDevice.cpp b/libs/input/InputDevice.cpp
index 4db9e06..dbd6293 100644
--- a/libs/input/InputDevice.cpp
+++ b/libs/input/InputDevice.cpp
@@ -46,9 +46,9 @@
 
 static void appendInputDeviceConfigurationFileRelativePath(std::string& path,
         const std::string& name, InputDeviceConfigurationFileType type) {
-    path += CONFIGURATION_FILE_DIR[type];
+    path += CONFIGURATION_FILE_DIR[static_cast<int32_t>(type)];
     path += name;
-    path += CONFIGURATION_FILE_EXTENSION[type];
+    path += CONFIGURATION_FILE_EXTENSION[static_cast<int32_t>(type)];
 }
 
 std::string getInputDeviceConfigurationFilePathByDeviceIdentifier(
diff --git a/libs/input/InputTransport.cpp b/libs/input/InputTransport.cpp
index 11af23e..c6043ac 100644
--- a/libs/input/InputTransport.cpp
+++ b/libs/input/InputTransport.cpp
@@ -246,6 +246,28 @@
     }
 }
 
+// --- InputChannelInfo ---
+
+status_t InputChannelInfo::writeToParcel(android::Parcel* parcel) const {
+    if (parcel == nullptr) {
+        ALOGE("%s: Null parcel", __func__);
+        return BAD_VALUE;
+    }
+    status_t status = parcel->writeStrongBinder(mToken)
+            ?: parcel->writeUtf8AsUtf16(mName) ?: parcel->writeUniqueFileDescriptor(mFd);
+    return status;
+}
+
+status_t InputChannelInfo::readFromParcel(const android::Parcel* parcel) {
+    if (parcel == nullptr) {
+        ALOGE("%s: Null parcel", __func__);
+        return BAD_VALUE;
+    }
+    mToken = parcel->readStrongBinder();
+    status_t status = parcel->readUtf8FromUtf16(&mName) ?: parcel->readUniqueFileDescriptor(&mFd);
+    return status;
+}
+
 // --- InputChannel ---
 
 sp<InputChannel> InputChannel::create(const std::string& name, android::base::unique_fd fd,
@@ -260,15 +282,17 @@
 }
 
 InputChannel::InputChannel(const std::string& name, android::base::unique_fd fd, sp<IBinder> token)
-      : mName(name), mFd(std::move(fd)), mToken(token) {
+      : mInfo(name, std::move(fd), token) {
     if (DEBUG_CHANNEL_LIFECYCLE) {
-        ALOGD("Input channel constructed: name='%s', fd=%d", mName.c_str(), mFd.get());
+        ALOGD("Input channel constructed: name='%s', fd=%d", mInfo.mName.c_str(), mInfo.mFd.get());
     }
 }
 
+InputChannel::InputChannel() {}
+
 InputChannel::~InputChannel() {
     if (DEBUG_CHANNEL_LIFECYCLE) {
-        ALOGD("Input channel destroyed: name='%s', fd=%d", mName.c_str(), mFd.get());
+        ALOGD("Input channel destroyed: name='%s', fd=%d", getName().c_str(), getFd());
     }
 }
 
@@ -308,7 +332,7 @@
     msg->getSanitizedCopy(&cleanMsg);
     ssize_t nWrite;
     do {
-        nWrite = ::send(mFd.get(), &cleanMsg, msgLength, MSG_DONTWAIT | MSG_NOSIGNAL);
+        nWrite = ::send(getFd(), &cleanMsg, msgLength, MSG_DONTWAIT | MSG_NOSIGNAL);
     } while (nWrite == -1 && errno == EINTR);
 
     if (nWrite < 0) {
@@ -343,7 +367,7 @@
 status_t InputChannel::receiveMessage(InputMessage* msg) {
     ssize_t nRead;
     do {
-        nRead = ::recv(mFd.get(), msg, sizeof(InputMessage), MSG_DONTWAIT);
+        nRead = ::recv(getFd(), msg, sizeof(InputMessage), MSG_DONTWAIT);
     } while (nRead == -1 && errno == EINTR);
 
     if (nRead < 0) {
@@ -383,7 +407,7 @@
 sp<InputChannel> InputChannel::dup() const {
     android::base::unique_fd newFd(::dup(getFd()));
     if (!newFd.ok()) {
-        ALOGE("Could not duplicate fd %i for channel %s: %s", getFd(), mName.c_str(),
+        ALOGE("Could not duplicate fd %i for channel %s: %s", getFd(), getName().c_str(),
               strerror(errno));
         const bool hitFdLimit = errno == EMFILE || errno == ENFILE;
         // If this process is out of file descriptors, then throwing that might end up exploding
@@ -394,38 +418,19 @@
                             getName().c_str());
         return nullptr;
     }
-    return InputChannel::create(mName, std::move(newFd), mToken);
+    return InputChannel::create(getName(), std::move(newFd), getConnectionToken());
 }
 
-status_t InputChannel::write(Parcel& out) const {
-    status_t s = out.writeCString(getName().c_str());
-    if (s != OK) {
-        return s;
-    }
-
-    s = out.writeStrongBinder(mToken);
-    if (s != OK) {
-        return s;
-    }
-
-    s = out.writeUniqueFileDescriptor(mFd);
-    return s;
+status_t InputChannel::writeToParcel(android::Parcel* parcel) const {
+    return mInfo.writeToParcel(parcel);
 }
 
-sp<InputChannel> InputChannel::read(const Parcel& from) {
-    std::string name = from.readCString();
-    sp<IBinder> token = from.readStrongBinder();
-    android::base::unique_fd rawFd;
-    status_t fdResult = from.readUniqueFileDescriptor(&rawFd);
-    if (fdResult != OK) {
-        return nullptr;
-    }
-
-    return InputChannel::create(name, std::move(rawFd), token);
+status_t InputChannel::readFromParcel(const android::Parcel* parcel) {
+    return mInfo.readFromParcel(parcel);
 }
 
 sp<IBinder> InputChannel::getConnectionToken() const {
-    return mToken;
+    return mInfo.mToken;
 }
 
 // --- InputPublisher ---
diff --git a/libs/input/InputWindow.cpp b/libs/input/InputWindow.cpp
index 0455022..ae9b3f0 100644
--- a/libs/input/InputWindow.cpp
+++ b/libs/input/InputWindow.cpp
@@ -24,9 +24,6 @@
 
 #include <log/log.h>
 
-#include <ui/Rect.h>
-#include <ui/Region.h>
-
 namespace android {
 
 const char* inputWindowFlagToString(uint32_t flag) {
@@ -164,96 +161,130 @@
             && frameTop < other->frameBottom && frameBottom > other->frameTop;
 }
 
-status_t InputWindowInfo::write(Parcel& output) const {
+bool InputWindowInfo::operator==(const InputWindowInfo& info) const {
+    return info.token == token && info.id == id && info.name == name &&
+            info.layoutParamsFlags == layoutParamsFlags &&
+            info.layoutParamsType == layoutParamsType &&
+            info.dispatchingTimeout == dispatchingTimeout && info.frameLeft == frameLeft &&
+            info.frameTop == frameTop && info.frameRight == frameRight &&
+            info.frameBottom == frameBottom && info.surfaceInset == surfaceInset &&
+            info.globalScaleFactor == globalScaleFactor && info.windowXScale == windowXScale &&
+            info.windowYScale == windowYScale &&
+            info.touchableRegion.hasSameRects(touchableRegion) && info.visible == visible &&
+            info.canReceiveKeys == canReceiveKeys && info.trustedOverlay == trustedOverlay &&
+            info.hasFocus == hasFocus && info.hasWallpaper == hasWallpaper &&
+            info.paused == paused && info.ownerPid == ownerPid && info.ownerUid == ownerUid &&
+            info.inputFeatures == inputFeatures && info.displayId == displayId &&
+            info.portalToDisplayId == portalToDisplayId &&
+            info.replaceTouchableRegionWithCrop == replaceTouchableRegionWithCrop &&
+            info.applicationInfo.name == applicationInfo.name &&
+            info.applicationInfo.token == applicationInfo.token &&
+            info.applicationInfo.dispatchingTimeout == applicationInfo.dispatchingTimeout;
+}
+
+status_t InputWindowInfo::writeToParcel(android::Parcel* parcel) const {
+    if (parcel == nullptr) {
+        ALOGE("%s: Null parcel", __func__);
+        return BAD_VALUE;
+    }
     if (name.empty()) {
-        output.writeInt32(0);
+        parcel->writeInt32(0);
         return OK;
     }
-    output.writeInt32(1);
-    status_t s = output.writeStrongBinder(token);
-    if (s != OK) return s;
+    parcel->writeInt32(1);
 
-    output.writeInt32(id);
-    output.writeString8(String8(name.c_str()));
-    output.writeInt32(layoutParamsFlags);
-    output.writeInt32(layoutParamsType);
-    output.writeInt64(dispatchingTimeout);
-    output.writeInt32(frameLeft);
-    output.writeInt32(frameTop);
-    output.writeInt32(frameRight);
-    output.writeInt32(frameBottom);
-    output.writeInt32(surfaceInset);
-    output.writeFloat(globalScaleFactor);
-    output.writeFloat(windowXScale);
-    output.writeFloat(windowYScale);
-    output.writeBool(visible);
-    output.writeBool(canReceiveKeys);
-    output.writeBool(hasFocus);
-    output.writeBool(hasWallpaper);
-    output.writeBool(paused);
-    output.writeBool(trustedOverlay);
-    output.writeInt32(ownerPid);
-    output.writeInt32(ownerUid);
-    output.writeInt32(inputFeatures);
-    output.writeInt32(displayId);
-    output.writeInt32(portalToDisplayId);
-    applicationInfo.write(output);
-    output.write(touchableRegion);
-    output.writeBool(replaceTouchableRegionWithCrop);
-    output.writeStrongBinder(touchableRegionCropHandle.promote());
-    return OK;
+    status_t status = parcel->writeStrongBinder(token) ?:
+        parcel->writeInt64(dispatchingTimeout.count()) ?:
+        parcel->writeInt32(id) ?:
+        parcel->writeUtf8AsUtf16(name) ?:
+        parcel->writeInt32(layoutParamsFlags) ?:
+        parcel->writeInt32(layoutParamsType) ?:
+        parcel->writeInt32(frameLeft) ?:
+        parcel->writeInt32(frameTop) ?:
+        parcel->writeInt32(frameRight) ?:
+        parcel->writeInt32(frameBottom) ?:
+        parcel->writeInt32(surfaceInset) ?:
+        parcel->writeFloat(globalScaleFactor) ?:
+        parcel->writeFloat(windowXScale) ?:
+        parcel->writeFloat(windowYScale) ?:
+        parcel->writeBool(visible) ?:
+        parcel->writeBool(canReceiveKeys) ?:
+        parcel->writeBool(hasFocus) ?:
+        parcel->writeBool(hasWallpaper) ?:
+        parcel->writeBool(paused) ?:
+        parcel->writeBool(trustedOverlay) ?:
+        parcel->writeInt32(ownerPid) ?:
+        parcel->writeInt32(ownerUid) ?:
+        parcel->writeInt32(inputFeatures) ?:
+        parcel->writeInt32(displayId) ?:
+        parcel->writeInt32(portalToDisplayId) ?:
+        applicationInfo.writeToParcel(parcel) ?:
+        parcel->write(touchableRegion) ?:
+        parcel->writeBool(replaceTouchableRegionWithCrop) ?:
+        parcel->writeStrongBinder(touchableRegionCropHandle.promote());
+
+    return status;
 }
 
-InputWindowInfo InputWindowInfo::read(const Parcel& from) {
-    InputWindowInfo ret;
-
-    if (from.readInt32() == 0) {
-        return ret;
+status_t InputWindowInfo::readFromParcel(const android::Parcel* parcel) {
+    if (parcel == nullptr) {
+        ALOGE("%s: Null parcel", __func__);
+        return BAD_VALUE;
+    }
+    if (parcel->readInt32() == 0) {
+        return OK;
     }
 
-    ret.token = from.readStrongBinder();
-    ret.id = from.readInt32();
-    ret.name = from.readString8().c_str();
-    ret.layoutParamsFlags = from.readInt32();
-    ret.layoutParamsType = from.readInt32();
-    ret.dispatchingTimeout = from.readInt64();
-    ret.frameLeft = from.readInt32();
-    ret.frameTop = from.readInt32();
-    ret.frameRight = from.readInt32();
-    ret.frameBottom = from.readInt32();
-    ret.surfaceInset = from.readInt32();
-    ret.globalScaleFactor = from.readFloat();
-    ret.windowXScale = from.readFloat();
-    ret.windowYScale = from.readFloat();
-    ret.visible = from.readBool();
-    ret.canReceiveKeys = from.readBool();
-    ret.hasFocus = from.readBool();
-    ret.hasWallpaper = from.readBool();
-    ret.paused = from.readBool();
-    ret.trustedOverlay = from.readBool();
-    ret.ownerPid = from.readInt32();
-    ret.ownerUid = from.readInt32();
-    ret.inputFeatures = from.readInt32();
-    ret.displayId = from.readInt32();
-    ret.portalToDisplayId = from.readInt32();
-    ret.applicationInfo = InputApplicationInfo::read(from);
-    from.read(ret.touchableRegion);
-    ret.replaceTouchableRegionWithCrop = from.readBool();
-    ret.touchableRegionCropHandle = from.readStrongBinder();
+    token = parcel->readStrongBinder();
+    dispatchingTimeout = decltype(dispatchingTimeout)(parcel->readInt64());
+    status_t status = parcel->readInt32(&id) ?:
+        parcel->readUtf8FromUtf16(&name) ?:
+        parcel->readInt32(&layoutParamsFlags) ?:
+        parcel->readInt32(&layoutParamsType) ?:
+        parcel->readInt32(&frameLeft) ?:
+        parcel->readInt32(&frameTop) ?:
+        parcel->readInt32(&frameRight) ?:
+        parcel->readInt32(&frameBottom) ?:
+        parcel->readInt32(&surfaceInset) ?:
+        parcel->readFloat(&globalScaleFactor) ?:
+        parcel->readFloat(&windowXScale) ?:
+        parcel->readFloat(&windowYScale) ?:
+        parcel->readBool(&visible) ?:
+        parcel->readBool(&canReceiveKeys) ?:
+        parcel->readBool(&hasFocus) ?:
+        parcel->readBool(&hasWallpaper) ?:
+        parcel->readBool(&paused) ?:
+        parcel->readBool(&trustedOverlay) ?:
+        parcel->readInt32(&ownerPid) ?:
+        parcel->readInt32(&ownerUid) ?:
+        parcel->readInt32(&inputFeatures) ?:
+        parcel->readInt32(&displayId) ?:
+        parcel->readInt32(&portalToDisplayId) ?:
+        applicationInfo.readFromParcel(parcel) ?:
+        parcel->read(touchableRegion) ?:
+        parcel->readBool(&replaceTouchableRegionWithCrop);
 
-    return ret;
-}
+    touchableRegionCropHandle = parcel->readStrongBinder();
 
-InputWindowInfo::InputWindowInfo(const Parcel& from) {
-    *this = read(from);
+    return status;
 }
 
 // --- InputWindowHandle ---
 
-InputWindowHandle::InputWindowHandle() {
+InputWindowHandle::InputWindowHandle() {}
+
+InputWindowHandle::~InputWindowHandle() {}
+
+InputWindowHandle::InputWindowHandle(const InputWindowHandle& other) : mInfo(other.mInfo) {}
+
+InputWindowHandle::InputWindowHandle(const InputWindowInfo& other) : mInfo(other) {}
+
+status_t InputWindowHandle::writeToParcel(android::Parcel* parcel) const {
+    return mInfo.writeToParcel(parcel);
 }
 
-InputWindowHandle::~InputWindowHandle() {
+status_t InputWindowHandle::readFromParcel(const android::Parcel* parcel) {
+    return mInfo.readFromParcel(parcel);
 }
 
 void InputWindowHandle::releaseChannel() {
diff --git a/libs/input/Keyboard.cpp b/libs/input/Keyboard.cpp
index 56900c1..25025f2 100644
--- a/libs/input/Keyboard.cpp
+++ b/libs/input/Keyboard.cpp
@@ -105,8 +105,7 @@
 
 status_t KeyMap::loadKeyLayout(const InputDeviceIdentifier& deviceIdentifier,
         const std::string& name) {
-    std::string path(getPath(deviceIdentifier, name,
-            INPUT_DEVICE_CONFIGURATION_FILE_TYPE_KEY_LAYOUT));
+    std::string path(getPath(deviceIdentifier, name, InputDeviceConfigurationFileType::KEY_LAYOUT));
     if (path.empty()) {
         return NAME_NOT_FOUND;
     }
@@ -122,8 +121,8 @@
 
 status_t KeyMap::loadKeyCharacterMap(const InputDeviceIdentifier& deviceIdentifier,
         const std::string& name) {
-    std::string path = getPath(deviceIdentifier, name,
-            INPUT_DEVICE_CONFIGURATION_FILE_TYPE_KEY_CHARACTER_MAP);
+    std::string path =
+            getPath(deviceIdentifier, name, InputDeviceConfigurationFileType::KEY_CHARACTER_MAP);
     if (path.empty()) {
         return NAME_NOT_FOUND;
     }
diff --git a/libs/input/android/InputChannelInfo.aidl b/libs/input/android/InputChannelInfo.aidl
new file mode 100644
index 0000000..2e83b96
--- /dev/null
+++ b/libs/input/android/InputChannelInfo.aidl
@@ -0,0 +1,20 @@
+/* //device/java/android/android/view/InputChannel.aidl
+**
+** Copyright 2020, 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.
+*/
+
+package android;
+
+parcelable InputChannelInfo cpp_header "input/InputTransport.h";
diff --git a/libs/input/android/InputWindowInfo.aidl b/libs/input/android/InputWindowInfo.aidl
new file mode 100644
index 0000000..eeaf400
--- /dev/null
+++ b/libs/input/android/InputWindowInfo.aidl
@@ -0,0 +1,20 @@
+/* //device/java/android/android/view/InputChannel.aidl
+**
+** Copyright 2020, 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.
+*/
+
+package android;
+
+parcelable InputWindowInfo cpp_header "input/InputWindow.h";
diff --git a/libs/input/android/os/IInputFlinger.aidl b/libs/input/android/os/IInputFlinger.aidl
new file mode 100644
index 0000000..8ff9dae
--- /dev/null
+++ b/libs/input/android/os/IInputFlinger.aidl
@@ -0,0 +1,30 @@
+/**
+ * Copyright (c) 2020, 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.
+ */
+
+package android.os;
+
+import android.InputChannelInfo;
+import android.InputWindowInfo;
+import android.os.ISetInputWindowsListener;
+
+/** @hide */
+interface IInputFlinger
+{
+    void setInputWindows(in InputWindowInfo[] inputHandles,
+            in @nullable ISetInputWindowsListener setInputWindowsListener);
+    void registerInputChannel(in InputChannelInfo info);
+    void unregisterInputChannel(in InputChannelInfo info);
+}
diff --git a/libs/input/android/os/ISetInputWindowsListener.aidl b/libs/input/android/os/ISetInputWindowsListener.aidl
new file mode 100644
index 0000000..bb58fb6
--- /dev/null
+++ b/libs/input/android/os/ISetInputWindowsListener.aidl
@@ -0,0 +1,23 @@
+/**
+ * Copyright (c) 2020, 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.
+ */
+
+package android.os;
+
+/** @hide */
+oneway interface ISetInputWindowsListener
+{
+    void onSetInputWindowsFinished();
+}
diff --git a/libs/input/tests/InputChannel_test.cpp b/libs/input/tests/InputChannel_test.cpp
index ada275d..7f4bd6e 100644
--- a/libs/input/tests/InputChannel_test.cpp
+++ b/libs/input/tests/InputChannel_test.cpp
@@ -23,6 +23,7 @@
 #include <errno.h>
 
 #include <binder/Binder.h>
+#include <binder/Parcel.h>
 #include <gtest/gtest.h>
 #include <input/InputTransport.h>
 #include <utils/StopWatch.h>
@@ -197,5 +198,36 @@
     }
 }
 
+TEST_F(InputChannelTest, InputChannelParcelAndUnparcel) {
+    sp<InputChannel> serverChannel, clientChannel;
+
+    status_t result =
+            InputChannel::openInputChannelPair("channel parceling", serverChannel, clientChannel);
+
+    ASSERT_EQ(OK, result) << "should have successfully opened a channel pair";
+
+    InputChannel chan;
+    Parcel parcel;
+    ASSERT_EQ(OK, serverChannel->writeToParcel(&parcel));
+    parcel.setDataPosition(0);
+    chan.readFromParcel(&parcel);
+
+    EXPECT_EQ(chan == *serverChannel, true)
+            << "inputchannel should be equal after parceling and unparceling.\n"
+            << "name " << chan.getName() << " name " << serverChannel->getName();
+}
+
+TEST_F(InputChannelTest, DuplicateChannelAndAssertEqual) {
+    sp<InputChannel> serverChannel, clientChannel;
+
+    status_t result =
+            InputChannel::openInputChannelPair("channel dup", serverChannel, clientChannel);
+
+    ASSERT_EQ(OK, result) << "should have successfully opened a channel pair";
+
+    sp<InputChannel> dupChan = serverChannel->dup();
+
+    EXPECT_EQ(*serverChannel == *dupChan, true) << "inputchannel should be equal after duplication";
+}
 
 } // namespace android
diff --git a/libs/input/tests/InputWindow_test.cpp b/libs/input/tests/InputWindow_test.cpp
index d1cb527..cdea922 100644
--- a/libs/input/tests/InputWindow_test.cpp
+++ b/libs/input/tests/InputWindow_test.cpp
@@ -22,17 +22,19 @@
 #include <input/InputWindow.h>
 #include <input/InputTransport.h>
 
+using std::chrono_literals::operator""s;
+
 namespace android {
 namespace test {
 
 TEST(InputWindowInfo, ParcellingWithoutToken) {
-    InputWindowInfo i;
+    InputWindowInfo i, i2;
     i.token = nullptr;
 
     Parcel p;
-    ASSERT_EQ(OK, i.write(p));
+    ASSERT_EQ(OK, i.writeToParcel(&p));
     p.setDataPosition(0);
-    InputWindowInfo i2 = InputWindowInfo::read(p);
+    i2.readFromParcel(&p);
     ASSERT_TRUE(i2.token == nullptr);
 }
 
@@ -44,7 +46,7 @@
     i.name = "Foobar";
     i.layoutParamsFlags = 7;
     i.layoutParamsType = 39;
-    i.dispatchingTimeout = 12;
+    i.dispatchingTimeout = 12s;
     i.frameLeft = 93;
     i.frameTop = 34;
     i.frameRight = 16;
@@ -67,10 +69,10 @@
     i.touchableRegionCropHandle = touchableRegionCropHandle;
 
     Parcel p;
-    i.write(p);
-
+    i.writeToParcel(&p);
     p.setDataPosition(0);
-    InputWindowInfo i2 = InputWindowInfo::read(p);
+    InputWindowInfo i2;
+    i2.readFromParcel(&p);
     ASSERT_EQ(i.token, i2.token);
     ASSERT_EQ(i.id, i2.id);
     ASSERT_EQ(i.name, i2.name);
diff --git a/services/inputflinger/Android.bp b/services/inputflinger/Android.bp
index f67c9d0..f685628 100644
--- a/services/inputflinger/Android.bp
+++ b/services/inputflinger/Android.bp
@@ -21,6 +21,7 @@
         "-Werror",
         "-Wno-unused-parameter",
         "-Wthread-safety",
+        "-Wshadow",
     ],
 }
 
diff --git a/services/inputflinger/InputManager.cpp b/services/inputflinger/InputManager.cpp
index e68946d..c5f60ad 100644
--- a/services/inputflinger/InputManager.cpp
+++ b/services/inputflinger/InputManager.cpp
@@ -93,16 +93,15 @@
 
 class BinderWindowHandle : public InputWindowHandle {
 public:
-    BinderWindowHandle(const InputWindowInfo& info) {
-        mInfo = info;
-    }
+    BinderWindowHandle(const InputWindowInfo& info) { mInfo = info; }
 
     bool updateInfo() override {
         return true;
     }
 };
 
-void InputManager::setInputWindows(const std::vector<InputWindowInfo>& infos,
+binder::Status InputManager::setInputWindows(
+        const std::vector<InputWindowInfo>& infos,
         const sp<ISetInputWindowsListener>& setInputWindowsListener) {
     std::unordered_map<int32_t, std::vector<sp<InputWindowHandle>>> handlesPerDisplay;
 
@@ -116,26 +115,38 @@
     if (setInputWindowsListener) {
         setInputWindowsListener->onSetInputWindowsFinished();
     }
+    return binder::Status::ok();
 }
 
 // Used by tests only.
-void InputManager::registerInputChannel(const sp<InputChannel>& channel) {
+binder::Status InputManager::registerInputChannel(const InputChannelInfo& info) {
     IPCThreadState* ipc = IPCThreadState::self();
     const int uid = ipc->getCallingUid();
     if (uid != AID_SHELL && uid != AID_ROOT) {
         ALOGE("Invalid attempt to register input channel over IPC"
                 "from non shell/root entity (PID: %d)", ipc->getCallingPid());
-        return;
+        return binder::Status::ok();
     }
+    android::base::unique_fd newFd(::dup(info.mFd));
+    sp<InputChannel> channel = InputChannel::create(info.mName, std::move(newFd), info.mToken);
     mDispatcher->registerInputChannel(channel);
+    return binder::Status::ok();
 }
 
-void InputManager::unregisterInputChannel(const sp<InputChannel>& channel) {
+binder::Status InputManager::unregisterInputChannel(const InputChannelInfo& info) {
+    android::base::unique_fd newFd(::dup(info.mFd));
+    sp<InputChannel> channel = InputChannel::create(info.mName, std::move(newFd), info.mToken);
     mDispatcher->unregisterInputChannel(channel);
+    return binder::Status::ok();
 }
 
-void InputManager::setMotionClassifierEnabled(bool enabled) {
-    mClassifier->setMotionClassifierEnabled(enabled);
+status_t InputManager::dump(int fd, const Vector<String16>& args) {
+    std::string dump;
+
+    dump += " InputFlinger dump\n";
+
+    ::write(fd, dump.c_str(), dump.size());
+    return NO_ERROR;
 }
 
 } // namespace android
diff --git a/services/inputflinger/InputManager.h b/services/inputflinger/InputManager.h
index 0158441..4993b54 100644
--- a/services/inputflinger/InputManager.h
+++ b/services/inputflinger/InputManager.h
@@ -26,15 +26,19 @@
 
 #include <InputDispatcherInterface.h>
 #include <InputDispatcherPolicyInterface.h>
-#include <input/ISetInputWindowsListener.h>
+#include <android/os/ISetInputWindowsListener.h>
 #include <input/Input.h>
 #include <input/InputTransport.h>
 
-#include <input/IInputFlinger.h>
+#include <android/os/BnInputFlinger.h>
+#include <android/os/IInputFlinger.h>
 #include <utils/Errors.h>
-#include <utils/Vector.h>
-#include <utils/Timers.h>
 #include <utils/RefBase.h>
+#include <utils/Timers.h>
+#include <utils/Vector.h>
+
+using android::os::BnInputFlinger;
+using android::os::ISetInputWindowsListener;
 
 namespace android {
 class InputChannel;
@@ -43,17 +47,19 @@
 /*
  * The input manager is the core of the system event processing.
  *
- * The input manager has two components.
+ * The input manager has three components.
  *
  * 1. The InputReader class starts a thread that reads and preprocesses raw input events, applies
- *    policy, and posts messages to a queue managed by the InputDispatcherThread.
- * 2. The InputDispatcher class starts a thread that waits for new events on the
- *    queue and asynchronously dispatches them to applications.
+ *    policy, and posts messages to a queue managed by the InputClassifier.
+ * 2. The InputClassifier class starts a thread to communicate with the device-specific
+ *    classifiers. It then waits on the queue of events from InputReader, applies a classification
+ *    to them, and queues them for the InputDispatcher.
+ * 3. The InputDispatcher class starts a thread that waits for new events on the
+ *    previous queue and asynchronously dispatches them to applications.
  *
- * By design, the InputReader class and InputDispatcher class do not share any
- * internal state.  Moreover, all communication is done one way from the InputReader
- * into the InputDispatcherThread and never the reverse.  Both classes may interact with the
- * InputDispatchPolicy, however.
+ * By design, none of these classes share any internal state.  Moreover, all communication is
+ * done one way from the InputReader to the InputDispatcher and never the reverse.  All
+ * classes may interact with the InputDispatchPolicy, however.
  *
  * The InputManager class never makes any calls into Java itself.  Instead, the
  * InputDispatchPolicy is responsible for performing all external interactions with the
@@ -74,33 +80,36 @@
     /* Gets the input reader. */
     virtual sp<InputReaderInterface> getReader() = 0;
 
+    /* Gets the input classifier */
+    virtual sp<InputClassifierInterface> getClassifier() = 0;
+
     /* Gets the input dispatcher. */
     virtual sp<InputDispatcherInterface> getDispatcher() = 0;
 };
 
 class InputManager : public InputManagerInterface, public BnInputFlinger {
 protected:
-    virtual ~InputManager();
+    ~InputManager() override;
 
 public:
     InputManager(
             const sp<InputReaderPolicyInterface>& readerPolicy,
             const sp<InputDispatcherPolicyInterface>& dispatcherPolicy);
 
-    virtual status_t start();
-    virtual status_t stop();
+    status_t start() override;
+    status_t stop() override;
 
-    virtual sp<InputReaderInterface> getReader();
-    virtual sp<InputClassifierInterface> getClassifier();
-    virtual sp<InputDispatcherInterface> getDispatcher();
+    sp<InputReaderInterface> getReader() override;
+    sp<InputClassifierInterface> getClassifier() override;
+    sp<InputDispatcherInterface> getDispatcher() override;
 
-    virtual void setInputWindows(const std::vector<InputWindowInfo>& handles,
-            const sp<ISetInputWindowsListener>& setInputWindowsListener);
+    status_t dump(int fd, const Vector<String16>& args) override;
+    binder::Status setInputWindows(
+            const std::vector<InputWindowInfo>& handles,
+            const sp<ISetInputWindowsListener>& setInputWindowsListener) override;
 
-    virtual void registerInputChannel(const sp<InputChannel>& channel);
-    virtual void unregisterInputChannel(const sp<InputChannel>& channel);
-
-    void setMotionClassifierEnabled(bool enabled);
+    binder::Status registerInputChannel(const InputChannelInfo& info) override;
+    binder::Status unregisterInputChannel(const InputChannelInfo& info) override;
 
 private:
     sp<InputReaderInterface> mReader;
diff --git a/services/inputflinger/benchmarks/InputDispatcher_benchmarks.cpp b/services/inputflinger/benchmarks/InputDispatcher_benchmarks.cpp
index 5a14133..7d8ab75 100644
--- a/services/inputflinger/benchmarks/InputDispatcher_benchmarks.cpp
+++ b/services/inputflinger/benchmarks/InputDispatcher_benchmarks.cpp
@@ -45,49 +45,45 @@
     virtual ~FakeInputDispatcherPolicy() {}
 
 private:
-    virtual void notifyConfigurationChanged(nsecs_t) override {}
+    void notifyConfigurationChanged(nsecs_t) override {}
 
-    virtual nsecs_t notifyAnr(const sp<InputApplicationHandle>&, const sp<IBinder>&,
-                              const std::string& name) override {
+    std::chrono::nanoseconds notifyAnr(const sp<InputApplicationHandle>&, const sp<IBinder>&,
+                                       const std::string& name) override {
         ALOGE("The window is not responding : %s", name.c_str());
-        return 0;
+        return 0s;
     }
 
-    virtual void notifyInputChannelBroken(const sp<IBinder>&) override {}
+    void notifyInputChannelBroken(const sp<IBinder>&) override {}
 
-    virtual void notifyFocusChanged(const sp<IBinder>&, const sp<IBinder>&) override {}
+    void notifyFocusChanged(const sp<IBinder>&, const sp<IBinder>&) override {}
 
-    virtual void getDispatcherConfiguration(InputDispatcherConfiguration* outConfig) override {
+    void getDispatcherConfiguration(InputDispatcherConfiguration* outConfig) override {
         *outConfig = mConfig;
     }
 
-    virtual bool filterInputEvent(const InputEvent* inputEvent, uint32_t policyFlags) override {
+    bool filterInputEvent(const InputEvent* inputEvent, uint32_t policyFlags) override {
         return true;
     }
 
-    virtual void interceptKeyBeforeQueueing(const KeyEvent*, uint32_t&) override {}
+    void interceptKeyBeforeQueueing(const KeyEvent*, uint32_t&) override {}
 
-    virtual void interceptMotionBeforeQueueing(int32_t, nsecs_t, uint32_t&) override {}
+    void interceptMotionBeforeQueueing(int32_t, nsecs_t, uint32_t&) override {}
 
-    virtual nsecs_t interceptKeyBeforeDispatching(const sp<IBinder>&, const KeyEvent*,
-                                                  uint32_t) override {
+    nsecs_t interceptKeyBeforeDispatching(const sp<IBinder>&, const KeyEvent*, uint32_t) override {
         return 0;
     }
 
-    virtual bool dispatchUnhandledKey(const sp<IBinder>&, const KeyEvent*, uint32_t,
-                                      KeyEvent*) override {
+    bool dispatchUnhandledKey(const sp<IBinder>&, const KeyEvent*, uint32_t, KeyEvent*) override {
         return false;
     }
 
-    virtual void notifySwitch(nsecs_t, uint32_t, uint32_t, uint32_t) override {}
+    void notifySwitch(nsecs_t, uint32_t, uint32_t, uint32_t) override {}
 
-    virtual void pokeUserActivity(nsecs_t, int32_t) override {}
+    void pokeUserActivity(nsecs_t, int32_t) override {}
 
-    virtual bool checkInjectEventsPermissionNonReentrant(int32_t, int32_t) override {
-        return false;
-    }
+    bool checkInjectEventsPermissionNonReentrant(int32_t, int32_t) override { return false; }
 
-    virtual void onPointerDownOutsideFocus(const sp<IBinder>& newToken) override {}
+    void onPointerDownOutsideFocus(const sp<IBinder>& newToken) override {}
 
     InputDispatcherConfiguration mConfig;
 };
@@ -98,7 +94,7 @@
     virtual ~FakeApplicationHandle() {}
 
     virtual bool updateInfo() {
-        mInfo.dispatchingTimeout = DISPATCHING_TIMEOUT.count();
+        mInfo.dispatchingTimeout = DISPATCHING_TIMEOUT;
         return true;
     }
 };
@@ -163,7 +159,7 @@
         mInfo.name = "FakeWindowHandle";
         mInfo.layoutParamsFlags = 0;
         mInfo.layoutParamsType = InputWindowInfo::TYPE_APPLICATION;
-        mInfo.dispatchingTimeout = DISPATCHING_TIMEOUT.count();
+        mInfo.dispatchingTimeout = DISPATCHING_TIMEOUT;
         mInfo.frameLeft = mFrame.left;
         mInfo.frameTop = mFrame.top;
         mInfo.frameRight = mFrame.right;
diff --git a/services/inputflinger/dispatcher/InputDispatcher.cpp b/services/inputflinger/dispatcher/InputDispatcher.cpp
index 49f9c54..0fa2332 100644
--- a/services/inputflinger/dispatcher/InputDispatcher.cpp
+++ b/services/inputflinger/dispatcher/InputDispatcher.cpp
@@ -159,6 +159,10 @@
     }
 }
 
+static int64_t millis(std::chrono::nanoseconds t) {
+    return std::chrono::duration_cast<std::chrono::milliseconds>(t).count();
+}
+
 static bool validateMotionEvent(int32_t action, int32_t actionButton, size_t pointerCount,
                                 const PointerProperties* pointerProperties) {
     if (!isValidMotionAction(action, actionButton, pointerCount)) {
@@ -1473,13 +1477,13 @@
     if (focusedWindowHandle == nullptr && focusedApplicationHandle != nullptr) {
         if (!mNoFocusedWindowTimeoutTime.has_value()) {
             // We just discovered that there's no focused window. Start the ANR timer
-            const nsecs_t timeout = focusedApplicationHandle->getDispatchingTimeout(
-                    DEFAULT_INPUT_DISPATCHING_TIMEOUT.count());
-            mNoFocusedWindowTimeoutTime = currentTime + timeout;
+            std::chrono::nanoseconds timeout = focusedApplicationHandle->getDispatchingTimeout(
+                    DEFAULT_INPUT_DISPATCHING_TIMEOUT);
+            mNoFocusedWindowTimeoutTime = currentTime + timeout.count();
             mAwaitedFocusedApplication = focusedApplicationHandle;
             ALOGW("Waiting because no window has focus but %s may eventually add a "
                   "window when it finishes starting up. Will wait for %" PRId64 "ms",
-                  mAwaitedFocusedApplication->getName().c_str(), ns2ms(timeout));
+                  mAwaitedFocusedApplication->getName().c_str(), millis(timeout));
             *nextWakeupTime = *mNoFocusedWindowTimeoutTime;
             return INPUT_EVENT_INJECTION_PENDING;
         } else if (currentTime > *mNoFocusedWindowTimeoutTime) {
@@ -3864,9 +3868,8 @@
                 if (!mFocusedWindowHandlesByDisplay.empty()) {
                     ALOGE("But another display has a focused window:");
                     for (auto& it : mFocusedWindowHandlesByDisplay) {
-                        const int32_t displayId = it.first;
                         const sp<InputWindowHandle>& windowHandle = it.second;
-                        ALOGE("Display #%" PRId32 " has focused window: '%s'\n", displayId,
+                        ALOGE("Display #%" PRId32 " has focused window: '%s'\n", it.first,
                               windowHandle->getName().c_str());
                     }
                 }
@@ -4064,13 +4067,11 @@
         for (auto& it : mFocusedApplicationHandlesByDisplay) {
             const int32_t displayId = it.first;
             const sp<InputApplicationHandle>& applicationHandle = it.second;
+            const int64_t timeoutMillis = millis(
+                    applicationHandle->getDispatchingTimeout(DEFAULT_INPUT_DISPATCHING_TIMEOUT));
             dump += StringPrintf(INDENT2 "displayId=%" PRId32
                                          ", name='%s', dispatchingTimeout=%" PRId64 "ms\n",
-                                 displayId, applicationHandle->getName().c_str(),
-                                 ns2ms(applicationHandle
-                                               ->getDispatchingTimeout(
-                                                       DEFAULT_INPUT_DISPATCHING_TIMEOUT)
-                                               .count()));
+                                 displayId, applicationHandle->getName().c_str(), timeoutMillis);
         }
     } else {
         dump += StringPrintf(INDENT "FocusedApplications: <none>\n");
@@ -4153,7 +4154,7 @@
                     dump += StringPrintf(", ownerPid=%d, ownerUid=%d, dispatchingTimeout=%" PRId64
                                          "ms\n",
                                          windowInfo->ownerPid, windowInfo->ownerUid,
-                                         ns2ms(windowInfo->dispatchingTimeout));
+                                         millis(windowInfo->dispatchingTimeout));
                     dump += StringPrintf(INDENT4 "    flags: %s\n",
                                          inputWindowFlagsToString(windowInfo->layoutParamsFlags)
                                                  .c_str());
@@ -4654,12 +4655,12 @@
             commandEntry->inputChannel ? commandEntry->inputChannel->getConnectionToken() : nullptr;
     mLock.unlock();
 
-    const nsecs_t timeoutExtension =
+    const std::chrono::nanoseconds timeoutExtension =
             mPolicy->notifyAnr(commandEntry->inputApplicationHandle, token, commandEntry->reason);
 
     mLock.lock();
 
-    if (timeoutExtension > 0) {
+    if (timeoutExtension > 0s) {
         extendAnrTimeoutsLocked(commandEntry->inputApplicationHandle, token, timeoutExtension);
     } else {
         // stop waking up for events in this connection, it is already not responding
@@ -4673,12 +4674,12 @@
 
 void InputDispatcher::extendAnrTimeoutsLocked(const sp<InputApplicationHandle>& application,
                                               const sp<IBinder>& connectionToken,
-                                              nsecs_t timeoutExtension) {
+                                              std::chrono::nanoseconds timeoutExtension) {
     sp<Connection> connection = getConnectionLocked(connectionToken);
     if (connection == nullptr) {
         if (mNoFocusedWindowTimeoutTime.has_value() && application != nullptr) {
             // Maybe ANR happened because there's no focused window?
-            mNoFocusedWindowTimeoutTime = now() + timeoutExtension;
+            mNoFocusedWindowTimeoutTime = now() + timeoutExtension.count();
             mAwaitedFocusedApplication = application;
         } else {
             // It's also possible that the connection already disappeared. No action necessary.
@@ -4687,10 +4688,10 @@
     }
 
     ALOGI("Raised ANR, but the policy wants to keep waiting on %s for %" PRId64 "ms longer",
-          connection->inputChannel->getName().c_str(), ns2ms(timeoutExtension));
+          connection->inputChannel->getName().c_str(), millis(timeoutExtension));
 
     connection->responsive = true;
-    const nsecs_t newTimeout = now() + timeoutExtension;
+    const nsecs_t newTimeout = now() + timeoutExtension.count();
     for (DispatchEntry* entry : connection->waitQueue) {
         if (newTimeout >= entry->timeoutTime) {
             // Already removed old entries when connection was marked unresponsive
diff --git a/services/inputflinger/dispatcher/InputDispatcher.h b/services/inputflinger/dispatcher/InputDispatcher.h
index e679c6b..42583bc 100644
--- a/services/inputflinger/dispatcher/InputDispatcher.h
+++ b/services/inputflinger/dispatcher/InputDispatcher.h
@@ -374,8 +374,8 @@
     // prevent unneeded wakeups.
     AnrTracker mAnrTracker GUARDED_BY(mLock);
     void extendAnrTimeoutsLocked(const sp<InputApplicationHandle>& application,
-                                 const sp<IBinder>& connectionToken, nsecs_t timeoutExtension)
-            REQUIRES(mLock);
+                                 const sp<IBinder>& connectionToken,
+                                 std::chrono::nanoseconds timeoutExtension) REQUIRES(mLock);
 
     // Contains the last window which received a hover event.
     sp<InputWindowHandle> mLastHoverWindowHandle GUARDED_BY(mLock);
diff --git a/services/inputflinger/dispatcher/include/InputDispatcherInterface.h b/services/inputflinger/dispatcher/include/InputDispatcherInterface.h
index 9b002f4..f25131c 100644
--- a/services/inputflinger/dispatcher/include/InputDispatcherInterface.h
+++ b/services/inputflinger/dispatcher/include/InputDispatcherInterface.h
@@ -18,15 +18,14 @@
 #define _UI_INPUT_INPUTDISPATCHER_INPUTDISPATCHERINTERFACE_H
 
 #include <InputListener.h>
-#include <input/ISetInputWindowsListener.h>
+#include <android/os/ISetInputWindowsListener.h>
+#include <input/InputApplication.h>
+#include <input/InputTransport.h>
+#include <input/InputWindow.h>
 #include <unordered_map>
 
 namespace android {
 
-class InputApplicationHandle;
-class InputChannel;
-class InputWindowHandle;
-
 /*
  * Constants used to report the outcome of input event injection.
  */
diff --git a/services/inputflinger/dispatcher/include/InputDispatcherPolicyInterface.h b/services/inputflinger/dispatcher/include/InputDispatcherPolicyInterface.h
index 667af9b..c886bee 100644
--- a/services/inputflinger/dispatcher/include/InputDispatcherPolicyInterface.h
+++ b/services/inputflinger/dispatcher/include/InputDispatcherPolicyInterface.h
@@ -21,11 +21,11 @@
 
 #include <binder/IBinder.h>
 #include <input/Input.h>
+#include <input/InputApplication.h>
 #include <utils/RefBase.h>
 
 namespace android {
 
-class InputApplicationHandle;
 
 /*
  * Input dispatcher policy interface.
@@ -47,8 +47,9 @@
 
     /* Notifies the system that an application is not responding.
      * Returns a new timeout to continue waiting, or 0 to abort dispatch. */
-    virtual nsecs_t notifyAnr(const sp<InputApplicationHandle>& inputApplicationHandle,
-                              const sp<IBinder>& token, const std::string& reason) = 0;
+    virtual std::chrono::nanoseconds notifyAnr(
+            const sp<InputApplicationHandle>& inputApplicationHandle, const sp<IBinder>& token,
+            const std::string& reason) = 0;
 
     /* Notifies the system that an input channel is unrecoverably broken. */
     virtual void notifyInputChannelBroken(const sp<IBinder>& token) = 0;
diff --git a/services/inputflinger/host/Android.bp b/services/inputflinger/host/Android.bp
index b56f356..2643c22 100644
--- a/services/inputflinger/host/Android.bp
+++ b/services/inputflinger/host/Android.bp
@@ -59,7 +59,8 @@
     shared_libs: [
         "libbinder",
         "libinputflingerhost",
-        "libutils"
+        "libutils",
+        "libinput"
     ],
     static_libs: [
         "libarect",
diff --git a/services/inputflinger/host/InputDriver.cpp b/services/inputflinger/host/InputDriver.cpp
index 683c05d..ff69800 100644
--- a/services/inputflinger/host/InputDriver.cpp
+++ b/services/inputflinger/host/InputDriver.cpp
@@ -217,8 +217,10 @@
     idi.product = id->productId;
     idi.version = id->version;
 
-    std::string configFile = getInputDeviceConfigurationFilePathByDeviceIdentifier(
-            idi, INPUT_DEVICE_CONFIGURATION_FILE_TYPE_CONFIGURATION);
+    std::string configFile =
+            getInputDeviceConfigurationFilePathByDeviceIdentifier(idi,
+                                                                  InputDeviceConfigurationFileType::
+                                                                          CONFIGURATION);
     if (configFile.empty()) {
         ALOGD("No input device configuration file found for device '%s'.",
                 idi.name.c_str());
diff --git a/services/inputflinger/host/InputFlinger.h b/services/inputflinger/host/InputFlinger.h
index 973b4f9..9364a2a 100644
--- a/services/inputflinger/host/InputFlinger.h
+++ b/services/inputflinger/host/InputFlinger.h
@@ -22,13 +22,17 @@
 
 #include "InputHost.h"
 
+#include <android/os/BnInputFlinger.h>
+#include <android/os/ISetInputWindowsListener.h>
+#include <binder/Binder.h>
 #include <cutils/compiler.h>
-#include <input/IInputFlinger.h>
-#include <input/ISetInputWindowsListener.h>
-#include <utils/String8.h>
 #include <utils/String16.h>
+#include <utils/String8.h>
 #include <utils/StrongPointer.h>
 
+using android::os::BnInputFlinger;
+using android::os::ISetInputWindowsListener;
+
 namespace android {
 
 class InputFlinger : public BnInputFlinger {
@@ -40,10 +44,12 @@
     InputFlinger() ANDROID_API;
 
     virtual status_t dump(int fd, const Vector<String16>& args);
-    void setInputWindows(const std::vector<InputWindowInfo>&,
-            const sp<ISetInputWindowsListener>&) {}
-    void registerInputChannel(const sp<InputChannel>&) {}
-    void unregisterInputChannel(const sp<InputChannel>&) {}
+    binder::Status setInputWindows(const std::vector<InputWindowInfo>&,
+                                   const sp<ISetInputWindowsListener>&) {
+        return binder::Status::ok();
+    }
+    binder::Status registerInputChannel(const InputChannelInfo&) { return binder::Status::ok(); }
+    binder::Status unregisterInputChannel(const InputChannelInfo&) { return binder::Status::ok(); }
 
 private:
     virtual ~InputFlinger();
diff --git a/services/inputflinger/include/PointerControllerInterface.h b/services/inputflinger/include/PointerControllerInterface.h
index bffff88..85d7247 100644
--- a/services/inputflinger/include/PointerControllerInterface.h
+++ b/services/inputflinger/include/PointerControllerInterface.h
@@ -59,11 +59,11 @@
     /* Gets the absolute location of the pointer. */
     virtual void getPosition(float* outX, float* outY) const = 0;
 
-    enum Transition {
+    enum class Transition {
         // Fade/unfade immediately.
-        TRANSITION_IMMEDIATE,
+        IMMEDIATE,
         // Fade/unfade gradually.
-        TRANSITION_GRADUAL,
+        GRADUAL,
     };
 
     /* Fades the pointer out now. */
@@ -75,11 +75,11 @@
      * wants to ensure that the pointer becomes visible again. */
     virtual void unfade(Transition transition) = 0;
 
-    enum Presentation {
+    enum class Presentation {
         // Show the mouse pointer.
-        PRESENTATION_POINTER,
+        POINTER,
         // Show spots and a spot anchor in place of the mouse pointer.
-        PRESENTATION_SPOT,
+        SPOT,
     };
 
     /* Sets the mode of the pointer controller. */
diff --git a/services/inputflinger/reader/EventHub.cpp b/services/inputflinger/reader/EventHub.cpp
index a1514af..5f1d475 100644
--- a/services/inputflinger/reader/EventHub.cpp
+++ b/services/inputflinger/reader/EventHub.cpp
@@ -933,11 +933,11 @@
                 if (eventItem.events & EPOLLIN) {
                     ALOGV("awoken after wake()");
                     awoken = true;
-                    char buffer[16];
+                    char wakeReadBuffer[16];
                     ssize_t nRead;
                     do {
-                        nRead = read(mWakeReadPipeFd, buffer, sizeof(buffer));
-                    } while ((nRead == -1 && errno == EINTR) || nRead == sizeof(buffer));
+                        nRead = read(mWakeReadPipeFd, wakeReadBuffer, sizeof(wakeReadBuffer));
+                    } while ((nRead == -1 && errno == EINTR) || nRead == sizeof(wakeReadBuffer));
                 } else {
                     ALOGW("Received unexpected epoll event 0x%08x for wake read pipe.",
                           eventItem.events);
@@ -1613,8 +1613,10 @@
 }
 
 void EventHub::loadConfigurationLocked(Device* device) {
-    device->configurationFile = getInputDeviceConfigurationFilePathByDeviceIdentifier(
-            device->identifier, INPUT_DEVICE_CONFIGURATION_FILE_TYPE_CONFIGURATION);
+    device->configurationFile =
+            getInputDeviceConfigurationFilePathByDeviceIdentifier(device->identifier,
+                                                                  InputDeviceConfigurationFileType::
+                                                                          CONFIGURATION);
     if (device->configurationFile.empty()) {
         ALOGD("No input device configuration file found for device '%s'.",
               device->identifier.name.c_str());
diff --git a/services/inputflinger/reader/InputReader.cpp b/services/inputflinger/reader/InputReader.cpp
index d3441ac..06e3743 100644
--- a/services/inputflinger/reader/InputReader.cpp
+++ b/services/inputflinger/reader/InputReader.cpp
@@ -427,7 +427,7 @@
 void InputReader::fadePointerLocked() {
     std::shared_ptr<PointerControllerInterface> controller = mPointerController.lock();
     if (controller != nullptr) {
-        controller->fade(PointerControllerInterface::TRANSITION_GRADUAL);
+        controller->fade(PointerControllerInterface::Transition::GRADUAL);
     }
 }
 
diff --git a/services/inputflinger/reader/include/TouchVideoDevice.h b/services/inputflinger/reader/include/TouchVideoDevice.h
index 5a32443..7de9b830 100644
--- a/services/inputflinger/reader/include/TouchVideoDevice.h
+++ b/services/inputflinger/reader/include/TouchVideoDevice.h
@@ -102,7 +102,7 @@
      * How many buffers to keep for the internal queue. When the internal buffer
      * exceeds this capacity, oldest frames will be dropped.
      */
-    static constexpr size_t MAX_QUEUE_SIZE = 10;
+    static constexpr size_t MAX_QUEUE_SIZE = 20;
     std::vector<TouchVideoFrame> mFrames;
 
     /**
diff --git a/services/inputflinger/reader/mapper/CursorInputMapper.cpp b/services/inputflinger/reader/mapper/CursorInputMapper.cpp
index 887ab53..d1f20c7 100644
--- a/services/inputflinger/reader/mapper/CursorInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/CursorInputMapper.cpp
@@ -14,12 +14,15 @@
  * limitations under the License.
  */
 
+// clang-format off
 #include "../Macros.h"
+// clang-format on
 
 #include "CursorInputMapper.h"
 
 #include "CursorButtonAccumulator.h"
 #include "CursorScrollAccumulator.h"
+#include "PointerControllerInterface.h"
 #include "TouchCursorInputMapperCommon.h"
 
 namespace android {
@@ -154,7 +157,7 @@
                 mParameters.mode = Parameters::MODE_POINTER_RELATIVE;
                 mSource = AINPUT_SOURCE_MOUSE_RELATIVE;
                 // Keep PointerController around in order to preserve the pointer position.
-                mPointerController->fade(PointerControllerInterface::TRANSITION_IMMEDIATE);
+                mPointerController->fade(PointerControllerInterface::Transition::IMMEDIATE);
             } else {
                 ALOGE("Cannot request pointer capture, device is not in MODE_POINTER");
             }
@@ -183,7 +186,7 @@
         mOrientation = DISPLAY_ORIENTATION_0;
         if (mParameters.orientationAware && mParameters.hasAssociatedDisplay) {
             std::optional<DisplayViewport> internalViewport =
-                    config->getDisplayViewportByType(ViewportType::VIEWPORT_INTERNAL);
+                    config->getDisplayViewportByType(ViewportType::INTERNAL);
             if (internalViewport) {
                 mOrientation = internalViewport->orientation;
             }
@@ -316,7 +319,7 @@
     float yCursorPosition = AMOTION_EVENT_INVALID_CURSOR_POSITION;
     if (mSource == AINPUT_SOURCE_MOUSE) {
         if (moved || scrolled || buttonsChanged) {
-            mPointerController->setPresentation(PointerControllerInterface::PRESENTATION_POINTER);
+            mPointerController->setPresentation(PointerControllerInterface::Presentation::POINTER);
 
             if (moved) {
                 mPointerController->move(deltaX, deltaY);
@@ -326,7 +329,7 @@
                 mPointerController->setButtonState(currentButtonState);
             }
 
-            mPointerController->unfade(PointerControllerInterface::TRANSITION_IMMEDIATE);
+            mPointerController->unfade(PointerControllerInterface::Transition::IMMEDIATE);
         }
 
         mPointerController->getPosition(&xCursorPosition, &yCursorPosition);
diff --git a/services/inputflinger/reader/mapper/JoystickInputMapper.cpp b/services/inputflinger/reader/mapper/JoystickInputMapper.cpp
index b2e10d6..bf81496 100644
--- a/services/inputflinger/reader/mapper/JoystickInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/JoystickInputMapper.cpp
@@ -32,8 +32,8 @@
 void JoystickInputMapper::populateDeviceInfo(InputDeviceInfo* info) {
     InputMapper::populateDeviceInfo(info);
 
-    for (size_t i = 0; i < mAxes.size(); i++) {
-        const Axis& axis = mAxes.valueAt(i);
+    for (std::pair<const int32_t, Axis>& pair : mAxes) {
+        const Axis& axis = pair.second;
         addMotionRange(axis.axisInfo.axis, axis, info);
 
         if (axis.axisInfo.mode == AxisInfo::MODE_SPLIT) {
@@ -72,9 +72,7 @@
     dump += INDENT2 "Joystick Input Mapper:\n";
 
     dump += INDENT3 "Axes:\n";
-    size_t numAxes = mAxes.size();
-    for (size_t i = 0; i < numAxes; i++) {
-        const Axis& axis = mAxes.valueAt(i);
+    for (const auto& [rawAxis, axis] : mAxes) {
         const char* label = getAxisLabel(axis.axisInfo.axis);
         if (label) {
             dump += StringPrintf(INDENT4 "%s", label);
@@ -100,7 +98,7 @@
                              axis.scale, axis.offset, axis.highScale, axis.highOffset);
         dump += StringPrintf(INDENT4 "  rawAxis=%d, rawMin=%d, rawMax=%d, "
                                      "rawFlat=%d, rawFuzz=%d, rawResolution=%d\n",
-                             mAxes.keyAt(i), axis.rawAxisInfo.minValue, axis.rawAxisInfo.maxValue,
+                             rawAxis, axis.rawAxisInfo.minValue, axis.rawAxisInfo.maxValue,
                              axis.rawAxisInfo.flat, axis.rawAxisInfo.fuzz,
                              axis.rawAxisInfo.resolution);
     }
@@ -130,9 +128,7 @@
                     axisInfo.mode = AxisInfo::MODE_NORMAL;
                     axisInfo.axis = -1;
                 }
-
-                Axis axis = createAxis(axisInfo, rawAxisInfo, explicitlyMapped);
-                mAxes.add(abs, axis);
+                mAxes.insert({abs, createAxis(axisInfo, rawAxisInfo, explicitlyMapped)});
             }
         }
 
@@ -147,9 +143,8 @@
 
         // Assign generic axis ids to remaining axes.
         int32_t nextGenericAxisId = AMOTION_EVENT_AXIS_GENERIC_1;
-        size_t numAxes = mAxes.size();
-        for (size_t i = 0; i < numAxes; i++) {
-            Axis& axis = mAxes.editValueAt(i);
+        for (auto it = mAxes.begin(); it != mAxes.end(); /*increment it inside loop*/) {
+            Axis& axis = it->second;
             if (axis.axisInfo.axis < 0) {
                 while (nextGenericAxisId <= AMOTION_EVENT_AXIS_GENERIC_16 &&
                        haveAxis(nextGenericAxisId)) {
@@ -162,11 +157,12 @@
                 } else {
                     ALOGI("Ignoring joystick '%s' axis %d because all of the generic axis ids "
                           "have already been assigned to other axes.",
-                          getDeviceName().c_str(), mAxes.keyAt(i));
-                    mAxes.removeItemsAt(i--);
-                    numAxes -= 1;
+                          getDeviceName().c_str(), it->first);
+                    it = mAxes.erase(it);
+                    continue;
                 }
             }
+            it++;
         }
     }
 }
@@ -177,38 +173,41 @@
     // Apply flat override.
     int32_t rawFlat = axisInfo.flatOverride < 0 ? rawAxisInfo.flat : axisInfo.flatOverride;
 
+    float scale = std::numeric_limits<float>::signaling_NaN();
+    float highScale = std::numeric_limits<float>::signaling_NaN();
+    float highOffset = 0;
+    float offset = 0;
+    float min = 0;
     // Calculate scaling factors and limits.
-    Axis axis;
     if (axisInfo.mode == AxisInfo::MODE_SPLIT) {
-        float scale = 1.0f / (axisInfo.splitValue - rawAxisInfo.minValue);
-        float highScale = 1.0f / (rawAxisInfo.maxValue - axisInfo.splitValue);
-        axis.initialize(rawAxisInfo, axisInfo, explicitlyMapped, scale, 0.0f, highScale, 0.0f, 0.0f,
-                        1.0f, rawFlat * scale, rawAxisInfo.fuzz * scale,
-                        rawAxisInfo.resolution * scale);
+        scale = 1.0f / (axisInfo.splitValue - rawAxisInfo.minValue);
+        highScale = 1.0f / (rawAxisInfo.maxValue - axisInfo.splitValue);
     } else if (isCenteredAxis(axisInfo.axis)) {
-        float scale = 2.0f / (rawAxisInfo.maxValue - rawAxisInfo.minValue);
-        float offset = avg(rawAxisInfo.minValue, rawAxisInfo.maxValue) * -scale;
-        axis.initialize(rawAxisInfo, axisInfo, explicitlyMapped, scale, offset, scale, offset,
-                        -1.0f, 1.0f, rawFlat * scale, rawAxisInfo.fuzz * scale,
-                        rawAxisInfo.resolution * scale);
+        scale = 2.0f / (rawAxisInfo.maxValue - rawAxisInfo.minValue);
+        offset = avg(rawAxisInfo.minValue, rawAxisInfo.maxValue) * -scale;
+        highOffset = offset;
+        highScale = scale;
+        min = -1.0f;
     } else {
-        float scale = 1.0f / (rawAxisInfo.maxValue - rawAxisInfo.minValue);
-        axis.initialize(rawAxisInfo, axisInfo, explicitlyMapped, scale, 0.0f, scale, 0.0f, 0.0f,
-                        1.0f, rawFlat * scale, rawAxisInfo.fuzz * scale,
-                        rawAxisInfo.resolution * scale);
+        scale = 1.0f / (rawAxisInfo.maxValue - rawAxisInfo.minValue);
+        highScale = scale;
     }
 
+    constexpr float max = 1.0;
+    const float flat = rawFlat * scale;
+    const float fuzz = rawAxisInfo.fuzz * scale;
+    const float resolution = rawAxisInfo.resolution * scale;
+
     // To eliminate noise while the joystick is at rest, filter out small variations
     // in axis values up front.
-    axis.filter = axis.fuzz ? axis.fuzz : axis.flat * 0.25f;
-
-    return axis;
+    const float filter = fuzz ? fuzz : flat * 0.25f;
+    return Axis(rawAxisInfo, axisInfo, explicitlyMapped, scale, offset, highScale, highOffset, min,
+                max, flat, fuzz, resolution, filter);
 }
 
 bool JoystickInputMapper::haveAxis(int32_t axisId) {
-    size_t numAxes = mAxes.size();
-    for (size_t i = 0; i < numAxes; i++) {
-        const Axis& axis = mAxes.valueAt(i);
+    for (const std::pair<int32_t, Axis>& pair : mAxes) {
+        const Axis& axis = pair.second;
         if (axis.axisInfo.axis == axisId ||
             (axis.axisInfo.mode == AxisInfo::MODE_SPLIT && axis.axisInfo.highAxis == axisId)) {
             return true;
@@ -218,14 +217,14 @@
 }
 
 void JoystickInputMapper::pruneAxes(bool ignoreExplicitlyMappedAxes) {
-    size_t i = mAxes.size();
-    while (mAxes.size() > PointerCoords::MAX_AXES && i-- > 0) {
-        if (ignoreExplicitlyMappedAxes && mAxes.valueAt(i).explicitlyMapped) {
+    while (mAxes.size() > PointerCoords::MAX_AXES) {
+        auto it = mAxes.begin();
+        if (ignoreExplicitlyMappedAxes && it->second.explicitlyMapped) {
             continue;
         }
         ALOGI("Discarding joystick '%s' axis %d because there are too many axes.",
-              getDeviceName().c_str(), mAxes.keyAt(i));
-        mAxes.removeItemsAt(i);
+              getDeviceName().c_str(), it->first);
+        mAxes.erase(it);
     }
 }
 
@@ -250,9 +249,8 @@
 
 void JoystickInputMapper::reset(nsecs_t when) {
     // Recenter all axes.
-    size_t numAxes = mAxes.size();
-    for (size_t i = 0; i < numAxes; i++) {
-        Axis& axis = mAxes.editValueAt(i);
+    for (std::pair<const int32_t, Axis>& pair : mAxes) {
+        Axis& axis = pair.second;
         axis.resetValue();
     }
 
@@ -262,9 +260,9 @@
 void JoystickInputMapper::process(const RawEvent* rawEvent) {
     switch (rawEvent->type) {
         case EV_ABS: {
-            ssize_t index = mAxes.indexOfKey(rawEvent->code);
-            if (index >= 0) {
-                Axis& axis = mAxes.editValueAt(index);
+            auto it = mAxes.find(rawEvent->code);
+            if (it != mAxes.end()) {
+                Axis& axis = it->second;
                 float newValue, highNewValue;
                 switch (axis.axisInfo.mode) {
                     case AxisInfo::MODE_INVERT:
@@ -324,9 +322,8 @@
     PointerCoords pointerCoords;
     pointerCoords.clear();
 
-    size_t numAxes = mAxes.size();
-    for (size_t i = 0; i < numAxes; i++) {
-        const Axis& axis = mAxes.valueAt(i);
+    for (std::pair<const int32_t, Axis>& pair : mAxes) {
+        const Axis& axis = pair.second;
         setPointerCoordsAxisValue(&pointerCoords, axis.axisInfo.axis, axis.currentValue);
         if (axis.axisInfo.mode == AxisInfo::MODE_SPLIT) {
             setPointerCoordsAxisValue(&pointerCoords, axis.axisInfo.highAxis,
@@ -364,9 +361,8 @@
 
 bool JoystickInputMapper::filterAxes(bool force) {
     bool atLeastOneSignificantChange = force;
-    size_t numAxes = mAxes.size();
-    for (size_t i = 0; i < numAxes; i++) {
-        Axis& axis = mAxes.editValueAt(i);
+    for (std::pair<const int32_t, Axis>& pair : mAxes) {
+        Axis& axis = pair.second;
         if (force ||
             hasValueChangedSignificantly(axis.filter, axis.newValue, axis.currentValue, axis.min,
                                          axis.max)) {
diff --git a/services/inputflinger/reader/mapper/JoystickInputMapper.h b/services/inputflinger/reader/mapper/JoystickInputMapper.h
index 29d5652..0cf60a2 100644
--- a/services/inputflinger/reader/mapper/JoystickInputMapper.h
+++ b/services/inputflinger/reader/mapper/JoystickInputMapper.h
@@ -36,6 +36,26 @@
 
 private:
     struct Axis {
+        explicit Axis(const RawAbsoluteAxisInfo& rawAxisInfo, const AxisInfo& axisInfo,
+                      bool explicitlyMapped, float scale, float offset, float highScale,
+                      float highOffset, float min, float max, float flat, float fuzz,
+                      float resolution, float filter)
+              : rawAxisInfo(rawAxisInfo),
+                axisInfo(axisInfo),
+                explicitlyMapped(explicitlyMapped),
+                scale(scale),
+                offset(offset),
+                highScale(highScale),
+                highOffset(highOffset),
+                min(min),
+                max(max),
+                flat(flat),
+                fuzz(fuzz),
+                resolution(resolution),
+                filter(filter) {
+            resetValue();
+        }
+
         RawAbsoluteAxisInfo rawAxisInfo;
         AxisInfo axisInfo;
 
@@ -58,26 +78,6 @@
         float highCurrentValue; // current value of high split
         float highNewValue;     // most recent value of high split
 
-        void initialize(const RawAbsoluteAxisInfo& rawAxisInfo, const AxisInfo& axisInfo,
-                        bool explicitlyMapped, float scale, float offset, float highScale,
-                        float highOffset, float min, float max, float flat, float fuzz,
-                        float resolution) {
-            this->rawAxisInfo = rawAxisInfo;
-            this->axisInfo = axisInfo;
-            this->explicitlyMapped = explicitlyMapped;
-            this->scale = scale;
-            this->offset = offset;
-            this->highScale = highScale;
-            this->highOffset = highOffset;
-            this->min = min;
-            this->max = max;
-            this->flat = flat;
-            this->fuzz = fuzz;
-            this->resolution = resolution;
-            this->filter = 0;
-            resetValue();
-        }
-
         void resetValue() {
             this->currentValue = 0;
             this->newValue = 0;
@@ -90,7 +90,7 @@
                            bool explicitlyMapped);
 
     // Axes indexed by raw ABS_* axis index.
-    KeyedVector<int32_t, Axis> mAxes;
+    std::unordered_map<int32_t, Axis> mAxes;
 
     void sync(nsecs_t when, bool force);
 
diff --git a/services/inputflinger/reader/mapper/KeyboardInputMapper.cpp b/services/inputflinger/reader/mapper/KeyboardInputMapper.cpp
index e009221..bd4232d 100644
--- a/services/inputflinger/reader/mapper/KeyboardInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/KeyboardInputMapper.cpp
@@ -14,7 +14,9 @@
  * limitations under the License.
  */
 
+// clang-format off
 #include "../Macros.h"
+// clang-format on
 
 #include "KeyboardInputMapper.h"
 
@@ -138,7 +140,7 @@
 
     // No associated display defined, try to find default display if orientationAware.
     if (mParameters.orientationAware) {
-        return config->getDisplayViewportByType(ViewportType::VIEWPORT_INTERNAL);
+        return config->getDisplayViewportByType(ViewportType::INTERNAL);
     }
 
     return std::nullopt;
diff --git a/services/inputflinger/reader/mapper/MultiTouchInputMapper.h b/services/inputflinger/reader/mapper/MultiTouchInputMapper.h
index 89ef41d..190282f 100644
--- a/services/inputflinger/reader/mapper/MultiTouchInputMapper.h
+++ b/services/inputflinger/reader/mapper/MultiTouchInputMapper.h
@@ -92,15 +92,15 @@
 class MultiTouchInputMapper : public TouchInputMapper {
 public:
     explicit MultiTouchInputMapper(InputDeviceContext& deviceContext);
-    virtual ~MultiTouchInputMapper();
+    ~MultiTouchInputMapper() override;
 
-    virtual void reset(nsecs_t when) override;
-    virtual void process(const RawEvent* rawEvent) override;
+    void reset(nsecs_t when) override;
+    void process(const RawEvent* rawEvent) override;
 
 protected:
-    virtual void syncTouch(nsecs_t when, RawState* outState);
-    virtual void configureRawPointerAxes();
-    virtual bool hasStylus() const;
+    void syncTouch(nsecs_t when, RawState* outState) override;
+    void configureRawPointerAxes() override;
+    bool hasStylus() const override;
 
 private:
     MultiTouchMotionAccumulator mMultiTouchMotionAccumulator;
diff --git a/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.cpp b/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.cpp
index 9885889..594ff42 100644
--- a/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/RotaryEncoderInputMapper.cpp
@@ -14,7 +14,9 @@
  * limitations under the License.
  */
 
+// clang-format off
 #include "../Macros.h"
+// clang-format on
 
 #include "RotaryEncoderInputMapper.h"
 
@@ -66,7 +68,7 @@
     }
     if (!changes || (changes & InputReaderConfiguration::CHANGE_DISPLAY_INFO)) {
         std::optional<DisplayViewport> internalViewport =
-                config->getDisplayViewportByType(ViewportType::VIEWPORT_INTERNAL);
+                config->getDisplayViewportByType(ViewportType::INTERNAL);
         if (internalViewport) {
             mOrientation = internalViewport->orientation;
         } else {
diff --git a/services/inputflinger/reader/mapper/SingleTouchInputMapper.h b/services/inputflinger/reader/mapper/SingleTouchInputMapper.h
index f5befb3..9cb3f67 100644
--- a/services/inputflinger/reader/mapper/SingleTouchInputMapper.h
+++ b/services/inputflinger/reader/mapper/SingleTouchInputMapper.h
@@ -25,15 +25,15 @@
 class SingleTouchInputMapper : public TouchInputMapper {
 public:
     explicit SingleTouchInputMapper(InputDeviceContext& deviceContext);
-    virtual ~SingleTouchInputMapper();
+    ~SingleTouchInputMapper() override;
 
-    virtual void reset(nsecs_t when) override;
-    virtual void process(const RawEvent* rawEvent) override;
+    void reset(nsecs_t when) override;
+    void process(const RawEvent* rawEvent) override;
 
 protected:
-    virtual void syncTouch(nsecs_t when, RawState* outState);
-    virtual void configureRawPointerAxes();
-    virtual bool hasStylus() const;
+    void syncTouch(nsecs_t when, RawState* outState) override;
+    void configureRawPointerAxes() override;
+    bool hasStylus() const override;
 
 private:
     SingleTouchMotionAccumulator mSingleTouchMotionAccumulator;
diff --git a/services/inputflinger/reader/mapper/TouchInputMapper.cpp b/services/inputflinger/reader/mapper/TouchInputMapper.cpp
index 10b6a18..4274ca8 100644
--- a/services/inputflinger/reader/mapper/TouchInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/TouchInputMapper.cpp
@@ -14,7 +14,9 @@
  * limitations under the License.
  */
 
+// clang-format off
 #include "../Macros.h"
+// clang-format on
 
 #include "TouchInputMapper.h"
 
@@ -159,7 +161,7 @@
 TouchInputMapper::TouchInputMapper(InputDeviceContext& deviceContext)
       : InputMapper(deviceContext),
         mSource(0),
-        mDeviceMode(DEVICE_MODE_DISABLED),
+        mDeviceMode(DeviceMode::DISABLED),
         mRawSurfaceWidth(-1),
         mRawSurfaceHeight(-1),
         mSurfaceLeft(0),
@@ -179,7 +181,7 @@
 void TouchInputMapper::populateDeviceInfo(InputDeviceInfo* info) {
     InputMapper::populateDeviceInfo(info);
 
-    if (mDeviceMode != DEVICE_MODE_DISABLED) {
+    if (mDeviceMode != DeviceMode::DISABLED) {
         info->addMotionRange(mOrientedRanges.x);
         info->addMotionRange(mOrientedRanges.y);
         info->addMotionRange(mOrientedRanges.pressure);
@@ -218,7 +220,7 @@
             info->addMotionRange(AMOTION_EVENT_AXIS_HSCROLL, mSource, -1.0f, 1.0f, 0.0f, 0.0f,
                                  0.0f);
         }
-        if (mCalibration.coverageCalibration == Calibration::COVERAGE_CALIBRATION_BOX) {
+        if (mCalibration.coverageCalibration == Calibration::CoverageCalibration::BOX) {
             const InputDeviceInfo::MotionRange& x = mOrientedRanges.x;
             const InputDeviceInfo::MotionRange& y = mOrientedRanges.y;
             info->addMotionRange(AMOTION_EVENT_AXIS_GENERIC_1, mSource, x.min, x.max, x.flat,
@@ -311,7 +313,7 @@
     dump += INDENT3 "External Stylus State:\n";
     dumpStylusState(dump, mExternalStylusState);
 
-    if (mDeviceMode == DEVICE_MODE_POINTER) {
+    if (mDeviceMode == DeviceMode::POINTER) {
         dump += StringPrintf(INDENT3 "Pointer Gesture Detector:\n");
         dump += StringPrintf(INDENT4 "XMovementScale: %0.3f\n", mPointerXMovementScale);
         dump += StringPrintf(INDENT4 "YMovementScale: %0.3f\n", mPointerYMovementScale);
@@ -323,15 +325,15 @@
 
 const char* TouchInputMapper::modeToString(DeviceMode deviceMode) {
     switch (deviceMode) {
-        case DEVICE_MODE_DISABLED:
+        case DeviceMode::DISABLED:
             return "disabled";
-        case DEVICE_MODE_DIRECT:
+        case DeviceMode::DIRECT:
             return "direct";
-        case DEVICE_MODE_UNSCALED:
+        case DeviceMode::UNSCALED:
             return "unscaled";
-        case DEVICE_MODE_NAVIGATION:
+        case DeviceMode::NAVIGATION:
             return "navigation";
-        case DEVICE_MODE_POINTER:
+        case DeviceMode::POINTER:
             return "pointer";
     }
     return "unknown";
@@ -406,16 +408,16 @@
     // multitouch.  The spot-based presentation relies on being able to accurately
     // locate two or more fingers on the touch pad.
     mParameters.gestureMode = getDeviceContext().hasInputProperty(INPUT_PROP_SEMI_MT)
-            ? Parameters::GESTURE_MODE_SINGLE_TOUCH
-            : Parameters::GESTURE_MODE_MULTI_TOUCH;
+            ? Parameters::GestureMode::SINGLE_TOUCH
+            : Parameters::GestureMode::MULTI_TOUCH;
 
     String8 gestureModeString;
     if (getDeviceContext().getConfiguration().tryGetProperty(String8("touch.gestureMode"),
                                                              gestureModeString)) {
         if (gestureModeString == "single-touch") {
-            mParameters.gestureMode = Parameters::GESTURE_MODE_SINGLE_TOUCH;
+            mParameters.gestureMode = Parameters::GestureMode::SINGLE_TOUCH;
         } else if (gestureModeString == "multi-touch") {
-            mParameters.gestureMode = Parameters::GESTURE_MODE_MULTI_TOUCH;
+            mParameters.gestureMode = Parameters::GestureMode::MULTI_TOUCH;
         } else if (gestureModeString != "default") {
             ALOGW("Invalid value for touch.gestureMode: '%s'", gestureModeString.string());
         }
@@ -423,18 +425,18 @@
 
     if (getDeviceContext().hasInputProperty(INPUT_PROP_DIRECT)) {
         // The device is a touch screen.
-        mParameters.deviceType = Parameters::DEVICE_TYPE_TOUCH_SCREEN;
+        mParameters.deviceType = Parameters::DeviceType::TOUCH_SCREEN;
     } else if (getDeviceContext().hasInputProperty(INPUT_PROP_POINTER)) {
         // The device is a pointing device like a track pad.
-        mParameters.deviceType = Parameters::DEVICE_TYPE_POINTER;
+        mParameters.deviceType = Parameters::DeviceType::POINTER;
     } else if (getDeviceContext().hasRelativeAxis(REL_X) ||
                getDeviceContext().hasRelativeAxis(REL_Y)) {
         // The device is a cursor device with a touch pad attached.
         // By default don't use the touch pad to move the pointer.
-        mParameters.deviceType = Parameters::DEVICE_TYPE_TOUCH_PAD;
+        mParameters.deviceType = Parameters::DeviceType::TOUCH_PAD;
     } else {
         // The device is a touch pad of unknown purpose.
-        mParameters.deviceType = Parameters::DEVICE_TYPE_POINTER;
+        mParameters.deviceType = Parameters::DeviceType::POINTER;
     }
 
     mParameters.hasButtonUnderPad = getDeviceContext().hasInputProperty(INPUT_PROP_BUTTONPAD);
@@ -443,29 +445,29 @@
     if (getDeviceContext().getConfiguration().tryGetProperty(String8("touch.deviceType"),
                                                              deviceTypeString)) {
         if (deviceTypeString == "touchScreen") {
-            mParameters.deviceType = Parameters::DEVICE_TYPE_TOUCH_SCREEN;
+            mParameters.deviceType = Parameters::DeviceType::TOUCH_SCREEN;
         } else if (deviceTypeString == "touchPad") {
-            mParameters.deviceType = Parameters::DEVICE_TYPE_TOUCH_PAD;
+            mParameters.deviceType = Parameters::DeviceType::TOUCH_PAD;
         } else if (deviceTypeString == "touchNavigation") {
-            mParameters.deviceType = Parameters::DEVICE_TYPE_TOUCH_NAVIGATION;
+            mParameters.deviceType = Parameters::DeviceType::TOUCH_NAVIGATION;
         } else if (deviceTypeString == "pointer") {
-            mParameters.deviceType = Parameters::DEVICE_TYPE_POINTER;
+            mParameters.deviceType = Parameters::DeviceType::POINTER;
         } else if (deviceTypeString != "default") {
             ALOGW("Invalid value for touch.deviceType: '%s'", deviceTypeString.string());
         }
     }
 
-    mParameters.orientationAware = mParameters.deviceType == Parameters::DEVICE_TYPE_TOUCH_SCREEN;
+    mParameters.orientationAware = mParameters.deviceType == Parameters::DeviceType::TOUCH_SCREEN;
     getDeviceContext().getConfiguration().tryGetProperty(String8("touch.orientationAware"),
                                                          mParameters.orientationAware);
 
     mParameters.hasAssociatedDisplay = false;
     mParameters.associatedDisplayIsExternal = false;
     if (mParameters.orientationAware ||
-        mParameters.deviceType == Parameters::DEVICE_TYPE_TOUCH_SCREEN ||
-        mParameters.deviceType == Parameters::DEVICE_TYPE_POINTER) {
+        mParameters.deviceType == Parameters::DeviceType::TOUCH_SCREEN ||
+        mParameters.deviceType == Parameters::DeviceType::POINTER) {
         mParameters.hasAssociatedDisplay = true;
-        if (mParameters.deviceType == Parameters::DEVICE_TYPE_TOUCH_SCREEN) {
+        if (mParameters.deviceType == Parameters::DeviceType::TOUCH_SCREEN) {
             mParameters.associatedDisplayIsExternal = getDeviceContext().isExternal();
             String8 uniqueDisplayId;
             getDeviceContext().getConfiguration().tryGetProperty(String8("touch.displayId"),
@@ -488,10 +490,10 @@
     dump += INDENT3 "Parameters:\n";
 
     switch (mParameters.gestureMode) {
-        case Parameters::GESTURE_MODE_SINGLE_TOUCH:
+        case Parameters::GestureMode::SINGLE_TOUCH:
             dump += INDENT4 "GestureMode: single-touch\n";
             break;
-        case Parameters::GESTURE_MODE_MULTI_TOUCH:
+        case Parameters::GestureMode::MULTI_TOUCH:
             dump += INDENT4 "GestureMode: multi-touch\n";
             break;
         default:
@@ -499,16 +501,16 @@
     }
 
     switch (mParameters.deviceType) {
-        case Parameters::DEVICE_TYPE_TOUCH_SCREEN:
+        case Parameters::DeviceType::TOUCH_SCREEN:
             dump += INDENT4 "DeviceType: touchScreen\n";
             break;
-        case Parameters::DEVICE_TYPE_TOUCH_PAD:
+        case Parameters::DeviceType::TOUCH_PAD:
             dump += INDENT4 "DeviceType: touchPad\n";
             break;
-        case Parameters::DEVICE_TYPE_TOUCH_NAVIGATION:
+        case Parameters::DeviceType::TOUCH_NAVIGATION:
             dump += INDENT4 "DeviceType: touchNavigation\n";
             break;
-        case Parameters::DEVICE_TYPE_POINTER:
+        case Parameters::DeviceType::POINTER:
             dump += INDENT4 "DeviceType: pointer\n";
             break;
         default:
@@ -565,7 +567,7 @@
             return getDeviceContext().getAssociatedViewport();
         }
 
-        if (mDeviceMode == DEVICE_MODE_POINTER) {
+        if (mDeviceMode == DeviceMode::POINTER) {
             std::optional<DisplayViewport> viewport =
                     mConfig.getDisplayViewportById(mConfig.defaultPointerDisplayId);
             if (viewport) {
@@ -583,18 +585,18 @@
 
         ViewportType viewportTypeToUse;
         if (mParameters.associatedDisplayIsExternal) {
-            viewportTypeToUse = ViewportType::VIEWPORT_EXTERNAL;
+            viewportTypeToUse = ViewportType::EXTERNAL;
         } else {
-            viewportTypeToUse = ViewportType::VIEWPORT_INTERNAL;
+            viewportTypeToUse = ViewportType::INTERNAL;
         }
 
         std::optional<DisplayViewport> viewport =
                 mConfig.getDisplayViewportByType(viewportTypeToUse);
-        if (!viewport && viewportTypeToUse == ViewportType::VIEWPORT_EXTERNAL) {
+        if (!viewport && viewportTypeToUse == ViewportType::EXTERNAL) {
             ALOGW("Input device %s should be associated with external display, "
                   "fallback to internal one for the external viewport is not found.",
                   getDeviceName().c_str());
-            viewport = mConfig.getDisplayViewportByType(ViewportType::VIEWPORT_INTERNAL);
+            viewport = mConfig.getDisplayViewportByType(ViewportType::INTERNAL);
         }
 
         return viewport;
@@ -610,34 +612,34 @@
 }
 
 void TouchInputMapper::configureSurface(nsecs_t when, bool* outResetNeeded) {
-    int32_t oldDeviceMode = mDeviceMode;
+    DeviceMode oldDeviceMode = mDeviceMode;
 
     resolveExternalStylusPresence();
 
     // Determine device mode.
-    if (mParameters.deviceType == Parameters::DEVICE_TYPE_POINTER &&
+    if (mParameters.deviceType == Parameters::DeviceType::POINTER &&
         mConfig.pointerGesturesEnabled) {
         mSource = AINPUT_SOURCE_MOUSE;
-        mDeviceMode = DEVICE_MODE_POINTER;
+        mDeviceMode = DeviceMode::POINTER;
         if (hasStylus()) {
             mSource |= AINPUT_SOURCE_STYLUS;
         }
-    } else if (mParameters.deviceType == Parameters::DEVICE_TYPE_TOUCH_SCREEN &&
+    } else if (mParameters.deviceType == Parameters::DeviceType::TOUCH_SCREEN &&
                mParameters.hasAssociatedDisplay) {
         mSource = AINPUT_SOURCE_TOUCHSCREEN;
-        mDeviceMode = DEVICE_MODE_DIRECT;
+        mDeviceMode = DeviceMode::DIRECT;
         if (hasStylus()) {
             mSource |= AINPUT_SOURCE_STYLUS;
         }
         if (hasExternalStylus()) {
             mSource |= AINPUT_SOURCE_BLUETOOTH_STYLUS;
         }
-    } else if (mParameters.deviceType == Parameters::DEVICE_TYPE_TOUCH_NAVIGATION) {
+    } else if (mParameters.deviceType == Parameters::DeviceType::TOUCH_NAVIGATION) {
         mSource = AINPUT_SOURCE_TOUCH_NAVIGATION;
-        mDeviceMode = DEVICE_MODE_NAVIGATION;
+        mDeviceMode = DeviceMode::NAVIGATION;
     } else {
         mSource = AINPUT_SOURCE_TOUCHPAD;
-        mDeviceMode = DEVICE_MODE_UNSCALED;
+        mDeviceMode = DeviceMode::UNSCALED;
     }
 
     // Ensure we have valid X and Y axes.
@@ -645,7 +647,7 @@
         ALOGW("Touch device '%s' did not report support for X or Y axis!  "
               "The device will be inoperable.",
               getDeviceName().c_str());
-        mDeviceMode = DEVICE_MODE_DISABLED;
+        mDeviceMode = DeviceMode::DISABLED;
         return;
     }
 
@@ -656,7 +658,7 @@
               "display.  The device will be inoperable until the display size "
               "becomes available.",
               getDeviceName().c_str());
-        mDeviceMode = DEVICE_MODE_DISABLED;
+        mDeviceMode = DeviceMode::DISABLED;
         return;
     }
 
@@ -668,7 +670,7 @@
     if (viewportChanged) {
         mViewport = *newViewport;
 
-        if (mDeviceMode == DEVICE_MODE_DIRECT || mDeviceMode == DEVICE_MODE_POINTER) {
+        if (mDeviceMode == DeviceMode::DIRECT || mDeviceMode == DeviceMode::POINTER) {
             // Convert rotated viewport to natural surface coordinates.
             int32_t naturalLogicalWidth, naturalLogicalHeight;
             int32_t naturalPhysicalWidth, naturalPhysicalHeight;
@@ -759,8 +761,8 @@
     }
 
     // Create pointer controller if needed.
-    if (mDeviceMode == DEVICE_MODE_POINTER ||
-        (mDeviceMode == DEVICE_MODE_DIRECT && mConfig.showTouches)) {
+    if (mDeviceMode == DeviceMode::POINTER ||
+        (mDeviceMode == DeviceMode::DIRECT && mConfig.showTouches)) {
         if (mPointerController == nullptr) {
             mPointerController = getContext()->getPointerController(getDeviceId());
         }
@@ -798,7 +800,7 @@
         float diagonalSize = hypotf(mRawSurfaceWidth, mRawSurfaceHeight);
 
         // Size factors.
-        if (mCalibration.sizeCalibration != Calibration::SIZE_CALIBRATION_NONE) {
+        if (mCalibration.sizeCalibration != Calibration::SizeCalibration::NONE) {
             if (mRawPointerAxes.touchMajor.valid && mRawPointerAxes.touchMajor.maxValue != 0) {
                 mSizeScale = 1.0f / mRawPointerAxes.touchMajor.maxValue;
             } else if (mRawPointerAxes.toolMajor.valid && mRawPointerAxes.toolMajor.maxValue != 0) {
@@ -847,8 +849,8 @@
         // Pressure factors.
         mPressureScale = 0;
         float pressureMax = 1.0;
-        if (mCalibration.pressureCalibration == Calibration::PRESSURE_CALIBRATION_PHYSICAL ||
-            mCalibration.pressureCalibration == Calibration::PRESSURE_CALIBRATION_AMPLITUDE) {
+        if (mCalibration.pressureCalibration == Calibration::PressureCalibration::PHYSICAL ||
+            mCalibration.pressureCalibration == Calibration::PressureCalibration::AMPLITUDE) {
             if (mCalibration.havePressureScale) {
                 mPressureScale = mCalibration.pressureScale;
                 pressureMax = mPressureScale * mRawPointerAxes.pressure.maxValue;
@@ -901,9 +903,9 @@
             mOrientedRanges.orientation.fuzz = 0;
             mOrientedRanges.orientation.resolution = 0;
         } else if (mCalibration.orientationCalibration !=
-                   Calibration::ORIENTATION_CALIBRATION_NONE) {
+                   Calibration::OrientationCalibration::NONE) {
             if (mCalibration.orientationCalibration ==
-                Calibration::ORIENTATION_CALIBRATION_INTERPOLATED) {
+                Calibration::OrientationCalibration::INTERPOLATED) {
                 if (mRawPointerAxes.orientation.valid) {
                     if (mRawPointerAxes.orientation.maxValue > 0) {
                         mOrientationScale = M_PI_2 / mRawPointerAxes.orientation.maxValue;
@@ -928,8 +930,8 @@
 
         // Distance
         mDistanceScale = 0;
-        if (mCalibration.distanceCalibration != Calibration::DISTANCE_CALIBRATION_NONE) {
-            if (mCalibration.distanceCalibration == Calibration::DISTANCE_CALIBRATION_SCALED) {
+        if (mCalibration.distanceCalibration != Calibration::DistanceCalibration::NONE) {
+            if (mCalibration.distanceCalibration == Calibration::DistanceCalibration::SCALED) {
                 if (mCalibration.haveDistanceScale) {
                     mDistanceScale = mCalibration.distanceScale;
                 } else {
@@ -991,7 +993,7 @@
         // Location
         updateAffineTransformation();
 
-        if (mDeviceMode == DEVICE_MODE_POINTER) {
+        if (mDeviceMode == DeviceMode::POINTER) {
             // Compute pointer gesture detection parameters.
             float rawDiagonal = hypotf(rawWidth, rawHeight);
             float displayDiagonal = hypotf(mRawSurfaceWidth, mRawSurfaceHeight);
@@ -1112,19 +1114,19 @@
     Calibration& out = mCalibration;
 
     // Size
-    out.sizeCalibration = Calibration::SIZE_CALIBRATION_DEFAULT;
+    out.sizeCalibration = Calibration::SizeCalibration::DEFAULT;
     String8 sizeCalibrationString;
     if (in.tryGetProperty(String8("touch.size.calibration"), sizeCalibrationString)) {
         if (sizeCalibrationString == "none") {
-            out.sizeCalibration = Calibration::SIZE_CALIBRATION_NONE;
+            out.sizeCalibration = Calibration::SizeCalibration::NONE;
         } else if (sizeCalibrationString == "geometric") {
-            out.sizeCalibration = Calibration::SIZE_CALIBRATION_GEOMETRIC;
+            out.sizeCalibration = Calibration::SizeCalibration::GEOMETRIC;
         } else if (sizeCalibrationString == "diameter") {
-            out.sizeCalibration = Calibration::SIZE_CALIBRATION_DIAMETER;
+            out.sizeCalibration = Calibration::SizeCalibration::DIAMETER;
         } else if (sizeCalibrationString == "box") {
-            out.sizeCalibration = Calibration::SIZE_CALIBRATION_BOX;
+            out.sizeCalibration = Calibration::SizeCalibration::BOX;
         } else if (sizeCalibrationString == "area") {
-            out.sizeCalibration = Calibration::SIZE_CALIBRATION_AREA;
+            out.sizeCalibration = Calibration::SizeCalibration::AREA;
         } else if (sizeCalibrationString != "default") {
             ALOGW("Invalid value for touch.size.calibration: '%s'", sizeCalibrationString.string());
         }
@@ -1135,15 +1137,15 @@
     out.haveSizeIsSummed = in.tryGetProperty(String8("touch.size.isSummed"), out.sizeIsSummed);
 
     // Pressure
-    out.pressureCalibration = Calibration::PRESSURE_CALIBRATION_DEFAULT;
+    out.pressureCalibration = Calibration::PressureCalibration::DEFAULT;
     String8 pressureCalibrationString;
     if (in.tryGetProperty(String8("touch.pressure.calibration"), pressureCalibrationString)) {
         if (pressureCalibrationString == "none") {
-            out.pressureCalibration = Calibration::PRESSURE_CALIBRATION_NONE;
+            out.pressureCalibration = Calibration::PressureCalibration::NONE;
         } else if (pressureCalibrationString == "physical") {
-            out.pressureCalibration = Calibration::PRESSURE_CALIBRATION_PHYSICAL;
+            out.pressureCalibration = Calibration::PressureCalibration::PHYSICAL;
         } else if (pressureCalibrationString == "amplitude") {
-            out.pressureCalibration = Calibration::PRESSURE_CALIBRATION_AMPLITUDE;
+            out.pressureCalibration = Calibration::PressureCalibration::AMPLITUDE;
         } else if (pressureCalibrationString != "default") {
             ALOGW("Invalid value for touch.pressure.calibration: '%s'",
                   pressureCalibrationString.string());
@@ -1153,15 +1155,15 @@
     out.havePressureScale = in.tryGetProperty(String8("touch.pressure.scale"), out.pressureScale);
 
     // Orientation
-    out.orientationCalibration = Calibration::ORIENTATION_CALIBRATION_DEFAULT;
+    out.orientationCalibration = Calibration::OrientationCalibration::DEFAULT;
     String8 orientationCalibrationString;
     if (in.tryGetProperty(String8("touch.orientation.calibration"), orientationCalibrationString)) {
         if (orientationCalibrationString == "none") {
-            out.orientationCalibration = Calibration::ORIENTATION_CALIBRATION_NONE;
+            out.orientationCalibration = Calibration::OrientationCalibration::NONE;
         } else if (orientationCalibrationString == "interpolated") {
-            out.orientationCalibration = Calibration::ORIENTATION_CALIBRATION_INTERPOLATED;
+            out.orientationCalibration = Calibration::OrientationCalibration::INTERPOLATED;
         } else if (orientationCalibrationString == "vector") {
-            out.orientationCalibration = Calibration::ORIENTATION_CALIBRATION_VECTOR;
+            out.orientationCalibration = Calibration::OrientationCalibration::VECTOR;
         } else if (orientationCalibrationString != "default") {
             ALOGW("Invalid value for touch.orientation.calibration: '%s'",
                   orientationCalibrationString.string());
@@ -1169,13 +1171,13 @@
     }
 
     // Distance
-    out.distanceCalibration = Calibration::DISTANCE_CALIBRATION_DEFAULT;
+    out.distanceCalibration = Calibration::DistanceCalibration::DEFAULT;
     String8 distanceCalibrationString;
     if (in.tryGetProperty(String8("touch.distance.calibration"), distanceCalibrationString)) {
         if (distanceCalibrationString == "none") {
-            out.distanceCalibration = Calibration::DISTANCE_CALIBRATION_NONE;
+            out.distanceCalibration = Calibration::DistanceCalibration::NONE;
         } else if (distanceCalibrationString == "scaled") {
-            out.distanceCalibration = Calibration::DISTANCE_CALIBRATION_SCALED;
+            out.distanceCalibration = Calibration::DistanceCalibration::SCALED;
         } else if (distanceCalibrationString != "default") {
             ALOGW("Invalid value for touch.distance.calibration: '%s'",
                   distanceCalibrationString.string());
@@ -1184,13 +1186,13 @@
 
     out.haveDistanceScale = in.tryGetProperty(String8("touch.distance.scale"), out.distanceScale);
 
-    out.coverageCalibration = Calibration::COVERAGE_CALIBRATION_DEFAULT;
+    out.coverageCalibration = Calibration::CoverageCalibration::DEFAULT;
     String8 coverageCalibrationString;
     if (in.tryGetProperty(String8("touch.coverage.calibration"), coverageCalibrationString)) {
         if (coverageCalibrationString == "none") {
-            out.coverageCalibration = Calibration::COVERAGE_CALIBRATION_NONE;
+            out.coverageCalibration = Calibration::CoverageCalibration::NONE;
         } else if (coverageCalibrationString == "box") {
-            out.coverageCalibration = Calibration::COVERAGE_CALIBRATION_BOX;
+            out.coverageCalibration = Calibration::CoverageCalibration::BOX;
         } else if (coverageCalibrationString != "default") {
             ALOGW("Invalid value for touch.coverage.calibration: '%s'",
                   coverageCalibrationString.string());
@@ -1201,43 +1203,43 @@
 void TouchInputMapper::resolveCalibration() {
     // Size
     if (mRawPointerAxes.touchMajor.valid || mRawPointerAxes.toolMajor.valid) {
-        if (mCalibration.sizeCalibration == Calibration::SIZE_CALIBRATION_DEFAULT) {
-            mCalibration.sizeCalibration = Calibration::SIZE_CALIBRATION_GEOMETRIC;
+        if (mCalibration.sizeCalibration == Calibration::SizeCalibration::DEFAULT) {
+            mCalibration.sizeCalibration = Calibration::SizeCalibration::GEOMETRIC;
         }
     } else {
-        mCalibration.sizeCalibration = Calibration::SIZE_CALIBRATION_NONE;
+        mCalibration.sizeCalibration = Calibration::SizeCalibration::NONE;
     }
 
     // Pressure
     if (mRawPointerAxes.pressure.valid) {
-        if (mCalibration.pressureCalibration == Calibration::PRESSURE_CALIBRATION_DEFAULT) {
-            mCalibration.pressureCalibration = Calibration::PRESSURE_CALIBRATION_PHYSICAL;
+        if (mCalibration.pressureCalibration == Calibration::PressureCalibration::DEFAULT) {
+            mCalibration.pressureCalibration = Calibration::PressureCalibration::PHYSICAL;
         }
     } else {
-        mCalibration.pressureCalibration = Calibration::PRESSURE_CALIBRATION_NONE;
+        mCalibration.pressureCalibration = Calibration::PressureCalibration::NONE;
     }
 
     // Orientation
     if (mRawPointerAxes.orientation.valid) {
-        if (mCalibration.orientationCalibration == Calibration::ORIENTATION_CALIBRATION_DEFAULT) {
-            mCalibration.orientationCalibration = Calibration::ORIENTATION_CALIBRATION_INTERPOLATED;
+        if (mCalibration.orientationCalibration == Calibration::OrientationCalibration::DEFAULT) {
+            mCalibration.orientationCalibration = Calibration::OrientationCalibration::INTERPOLATED;
         }
     } else {
-        mCalibration.orientationCalibration = Calibration::ORIENTATION_CALIBRATION_NONE;
+        mCalibration.orientationCalibration = Calibration::OrientationCalibration::NONE;
     }
 
     // Distance
     if (mRawPointerAxes.distance.valid) {
-        if (mCalibration.distanceCalibration == Calibration::DISTANCE_CALIBRATION_DEFAULT) {
-            mCalibration.distanceCalibration = Calibration::DISTANCE_CALIBRATION_SCALED;
+        if (mCalibration.distanceCalibration == Calibration::DistanceCalibration::DEFAULT) {
+            mCalibration.distanceCalibration = Calibration::DistanceCalibration::SCALED;
         }
     } else {
-        mCalibration.distanceCalibration = Calibration::DISTANCE_CALIBRATION_NONE;
+        mCalibration.distanceCalibration = Calibration::DistanceCalibration::NONE;
     }
 
     // Coverage
-    if (mCalibration.coverageCalibration == Calibration::COVERAGE_CALIBRATION_DEFAULT) {
-        mCalibration.coverageCalibration = Calibration::COVERAGE_CALIBRATION_NONE;
+    if (mCalibration.coverageCalibration == Calibration::CoverageCalibration::DEFAULT) {
+        mCalibration.coverageCalibration = Calibration::CoverageCalibration::NONE;
     }
 }
 
@@ -1246,19 +1248,19 @@
 
     // Size
     switch (mCalibration.sizeCalibration) {
-        case Calibration::SIZE_CALIBRATION_NONE:
+        case Calibration::SizeCalibration::NONE:
             dump += INDENT4 "touch.size.calibration: none\n";
             break;
-        case Calibration::SIZE_CALIBRATION_GEOMETRIC:
+        case Calibration::SizeCalibration::GEOMETRIC:
             dump += INDENT4 "touch.size.calibration: geometric\n";
             break;
-        case Calibration::SIZE_CALIBRATION_DIAMETER:
+        case Calibration::SizeCalibration::DIAMETER:
             dump += INDENT4 "touch.size.calibration: diameter\n";
             break;
-        case Calibration::SIZE_CALIBRATION_BOX:
+        case Calibration::SizeCalibration::BOX:
             dump += INDENT4 "touch.size.calibration: box\n";
             break;
-        case Calibration::SIZE_CALIBRATION_AREA:
+        case Calibration::SizeCalibration::AREA:
             dump += INDENT4 "touch.size.calibration: area\n";
             break;
         default:
@@ -1280,13 +1282,13 @@
 
     // Pressure
     switch (mCalibration.pressureCalibration) {
-        case Calibration::PRESSURE_CALIBRATION_NONE:
+        case Calibration::PressureCalibration::NONE:
             dump += INDENT4 "touch.pressure.calibration: none\n";
             break;
-        case Calibration::PRESSURE_CALIBRATION_PHYSICAL:
+        case Calibration::PressureCalibration::PHYSICAL:
             dump += INDENT4 "touch.pressure.calibration: physical\n";
             break;
-        case Calibration::PRESSURE_CALIBRATION_AMPLITUDE:
+        case Calibration::PressureCalibration::AMPLITUDE:
             dump += INDENT4 "touch.pressure.calibration: amplitude\n";
             break;
         default:
@@ -1299,13 +1301,13 @@
 
     // Orientation
     switch (mCalibration.orientationCalibration) {
-        case Calibration::ORIENTATION_CALIBRATION_NONE:
+        case Calibration::OrientationCalibration::NONE:
             dump += INDENT4 "touch.orientation.calibration: none\n";
             break;
-        case Calibration::ORIENTATION_CALIBRATION_INTERPOLATED:
+        case Calibration::OrientationCalibration::INTERPOLATED:
             dump += INDENT4 "touch.orientation.calibration: interpolated\n";
             break;
-        case Calibration::ORIENTATION_CALIBRATION_VECTOR:
+        case Calibration::OrientationCalibration::VECTOR:
             dump += INDENT4 "touch.orientation.calibration: vector\n";
             break;
         default:
@@ -1314,10 +1316,10 @@
 
     // Distance
     switch (mCalibration.distanceCalibration) {
-        case Calibration::DISTANCE_CALIBRATION_NONE:
+        case Calibration::DistanceCalibration::NONE:
             dump += INDENT4 "touch.distance.calibration: none\n";
             break;
-        case Calibration::DISTANCE_CALIBRATION_SCALED:
+        case Calibration::DistanceCalibration::SCALED:
             dump += INDENT4 "touch.distance.calibration: scaled\n";
             break;
         default:
@@ -1329,10 +1331,10 @@
     }
 
     switch (mCalibration.coverageCalibration) {
-        case Calibration::COVERAGE_CALIBRATION_NONE:
+        case Calibration::CoverageCalibration::NONE:
             dump += INDENT4 "touch.coverage.calibration: none\n";
             break;
-        case Calibration::COVERAGE_CALIBRATION_BOX:
+        case Calibration::CoverageCalibration::BOX:
             dump += INDENT4 "touch.coverage.calibration: box\n";
             break;
         default:
@@ -1370,7 +1372,7 @@
     mCurrentCookedState.clear();
     mLastRawState.clear();
     mLastCookedState.clear();
-    mPointerUsage = POINTER_USAGE_NONE;
+    mPointerUsage = PointerUsage::NONE;
     mSentHoverEnter = false;
     mHavePointerIds = false;
     mCurrentMotionAborted = false;
@@ -1383,7 +1385,7 @@
     resetExternalStylus();
 
     if (mPointerController != nullptr) {
-        mPointerController->fade(PointerControllerInterface::TRANSITION_GRADUAL);
+        mPointerController->fade(PointerControllerInterface::Transition::GRADUAL);
         mPointerController->clearSpots();
     }
 
@@ -1452,7 +1454,7 @@
 }
 
 void TouchInputMapper::processRawTouches(bool timeout) {
-    if (mDeviceMode == DEVICE_MODE_DISABLED) {
+    if (mDeviceMode == DeviceMode::DISABLED) {
         // Drop all input if the device is disabled.
         mCurrentRawState.clear();
         mRawStatesPending.clear();
@@ -1517,7 +1519,7 @@
     bool buttonsPressed = mCurrentRawState.buttonState & ~mLastRawState.buttonState;
     if (initialDown || buttonsPressed) {
         // If this is a touch screen, hide the pointer on an initial down.
-        if (mDeviceMode == DEVICE_MODE_DIRECT) {
+        if (mDeviceMode == DeviceMode::DIRECT) {
             getContext()->fadePointer();
         }
 
@@ -1546,7 +1548,7 @@
                          mCurrentCookedState.buttonState);
 
     // Dispatch the touches either directly or by translation through a pointer on screen.
-    if (mDeviceMode == DEVICE_MODE_POINTER) {
+    if (mDeviceMode == DeviceMode::POINTER) {
         for (BitSet32 idBits(mCurrentRawState.rawPointerData.touchingIdBits); !idBits.isEmpty();) {
             uint32_t id = idBits.clearFirstMarkedBit();
             const RawPointerData::Pointer& pointer =
@@ -1576,21 +1578,21 @@
         if (!mCurrentCookedState.stylusIdBits.isEmpty()) {
             mCurrentCookedState.mouseIdBits.clear();
             mCurrentCookedState.fingerIdBits.clear();
-            pointerUsage = POINTER_USAGE_STYLUS;
+            pointerUsage = PointerUsage::STYLUS;
         } else if (!mCurrentCookedState.mouseIdBits.isEmpty()) {
             mCurrentCookedState.fingerIdBits.clear();
-            pointerUsage = POINTER_USAGE_MOUSE;
+            pointerUsage = PointerUsage::MOUSE;
         } else if (!mCurrentCookedState.fingerIdBits.isEmpty() ||
                    isPointerDown(mCurrentRawState.buttonState)) {
-            pointerUsage = POINTER_USAGE_GESTURES;
+            pointerUsage = PointerUsage::GESTURES;
         }
 
         dispatchPointerUsage(when, policyFlags, pointerUsage);
     } else {
-        if (mDeviceMode == DEVICE_MODE_DIRECT && mConfig.showTouches &&
+        if (mDeviceMode == DeviceMode::DIRECT && mConfig.showTouches &&
             mPointerController != nullptr) {
-            mPointerController->setPresentation(PointerControllerInterface::PRESENTATION_SPOT);
-            mPointerController->fade(PointerControllerInterface::TRANSITION_GRADUAL);
+            mPointerController->setPresentation(PointerControllerInterface::Presentation::SPOT);
+            mPointerController->fade(PointerControllerInterface::Transition::GRADUAL);
 
             mPointerController->setButtonState(mCurrentRawState.buttonState);
             mPointerController->setSpots(mCurrentCookedState.cookedPointerData.pointerCoords,
@@ -1627,7 +1629,7 @@
 }
 
 void TouchInputMapper::applyExternalStylusButtonState(nsecs_t when) {
-    if (mDeviceMode == DEVICE_MODE_DIRECT && hasExternalStylus() && mExternalStylusId != -1) {
+    if (mDeviceMode == DeviceMode::DIRECT && hasExternalStylus() && mExternalStylusId != -1) {
         mCurrentRawState.buttonState |= mExternalStylusState.buttons;
     }
 }
@@ -1654,7 +1656,7 @@
 }
 
 bool TouchInputMapper::assignExternalStylusId(const RawState& state, bool timeout) {
-    if (mDeviceMode != DEVICE_MODE_DIRECT || !hasExternalStylus()) {
+    if (mDeviceMode != DeviceMode::DIRECT || !hasExternalStylus()) {
         return false;
     }
 
@@ -1697,11 +1699,11 @@
 }
 
 void TouchInputMapper::timeoutExpired(nsecs_t when) {
-    if (mDeviceMode == DEVICE_MODE_POINTER) {
-        if (mPointerUsage == POINTER_USAGE_GESTURES) {
+    if (mDeviceMode == DeviceMode::POINTER) {
+        if (mPointerUsage == PointerUsage::GESTURES) {
             dispatchPointerGestures(when, 0 /*policyFlags*/, true /*isTimeout*/);
         }
-    } else if (mDeviceMode == DEVICE_MODE_DIRECT) {
+    } else if (mDeviceMode == DeviceMode::DIRECT) {
         if (mExternalStylusFusionTimeout < when) {
             processRawTouches(true /*timeout*/);
         } else if (mExternalStylusFusionTimeout != LLONG_MAX) {
@@ -2038,10 +2040,10 @@
         // Size
         float touchMajor, touchMinor, toolMajor, toolMinor, size;
         switch (mCalibration.sizeCalibration) {
-            case Calibration::SIZE_CALIBRATION_GEOMETRIC:
-            case Calibration::SIZE_CALIBRATION_DIAMETER:
-            case Calibration::SIZE_CALIBRATION_BOX:
-            case Calibration::SIZE_CALIBRATION_AREA:
+            case Calibration::SizeCalibration::GEOMETRIC:
+            case Calibration::SizeCalibration::DIAMETER:
+            case Calibration::SizeCalibration::BOX:
+            case Calibration::SizeCalibration::AREA:
                 if (mRawPointerAxes.touchMajor.valid && mRawPointerAxes.toolMajor.valid) {
                     touchMajor = in.touchMajor;
                     touchMinor = mRawPointerAxes.touchMinor.valid ? in.touchMinor : in.touchMajor;
@@ -2083,17 +2085,17 @@
                     }
                 }
 
-                if (mCalibration.sizeCalibration == Calibration::SIZE_CALIBRATION_GEOMETRIC) {
+                if (mCalibration.sizeCalibration == Calibration::SizeCalibration::GEOMETRIC) {
                     touchMajor *= mGeometricScale;
                     touchMinor *= mGeometricScale;
                     toolMajor *= mGeometricScale;
                     toolMinor *= mGeometricScale;
-                } else if (mCalibration.sizeCalibration == Calibration::SIZE_CALIBRATION_AREA) {
+                } else if (mCalibration.sizeCalibration == Calibration::SizeCalibration::AREA) {
                     touchMajor = touchMajor > 0 ? sqrtf(touchMajor) : 0;
                     touchMinor = touchMajor;
                     toolMajor = toolMajor > 0 ? sqrtf(toolMajor) : 0;
                     toolMinor = toolMajor;
-                } else if (mCalibration.sizeCalibration == Calibration::SIZE_CALIBRATION_DIAMETER) {
+                } else if (mCalibration.sizeCalibration == Calibration::SizeCalibration::DIAMETER) {
                     touchMinor = touchMajor;
                     toolMinor = toolMajor;
                 }
@@ -2116,8 +2118,8 @@
         // Pressure
         float pressure;
         switch (mCalibration.pressureCalibration) {
-            case Calibration::PRESSURE_CALIBRATION_PHYSICAL:
-            case Calibration::PRESSURE_CALIBRATION_AMPLITUDE:
+            case Calibration::PressureCalibration::PHYSICAL:
+            case Calibration::PressureCalibration::AMPLITUDE:
                 pressure = in.pressure * mPressureScale;
                 break;
             default:
@@ -2137,10 +2139,10 @@
             tilt = 0;
 
             switch (mCalibration.orientationCalibration) {
-                case Calibration::ORIENTATION_CALIBRATION_INTERPOLATED:
+                case Calibration::OrientationCalibration::INTERPOLATED:
                     orientation = in.orientation * mOrientationScale;
                     break;
-                case Calibration::ORIENTATION_CALIBRATION_VECTOR: {
+                case Calibration::OrientationCalibration::VECTOR: {
                     int32_t c1 = signExtendNybble((in.orientation & 0xf0) >> 4);
                     int32_t c2 = signExtendNybble(in.orientation & 0x0f);
                     if (c1 != 0 || c2 != 0) {
@@ -2164,7 +2166,7 @@
         // Distance
         float distance;
         switch (mCalibration.distanceCalibration) {
-            case Calibration::DISTANCE_CALIBRATION_SCALED:
+            case Calibration::DistanceCalibration::SCALED:
                 distance = in.distance * mDistanceScale;
                 break;
             default:
@@ -2174,7 +2176,7 @@
         // Coverage
         int32_t rawLeft, rawTop, rawRight, rawBottom;
         switch (mCalibration.coverageCalibration) {
-            case Calibration::COVERAGE_CALIBRATION_BOX:
+            case Calibration::CoverageCalibration::BOX:
                 rawLeft = (in.toolMinor & 0xffff0000) >> 16;
                 rawRight = in.toolMinor & 0x0000ffff;
                 rawBottom = in.toolMajor & 0x0000ffff;
@@ -2251,7 +2253,7 @@
         out.setAxisValue(AMOTION_EVENT_AXIS_ORIENTATION, orientation);
         out.setAxisValue(AMOTION_EVENT_AXIS_TILT, tilt);
         out.setAxisValue(AMOTION_EVENT_AXIS_DISTANCE, distance);
-        if (mCalibration.coverageCalibration == Calibration::COVERAGE_CALIBRATION_BOX) {
+        if (mCalibration.coverageCalibration == Calibration::CoverageCalibration::BOX) {
             out.setAxisValue(AMOTION_EVENT_AXIS_GENERIC_1, left);
             out.setAxisValue(AMOTION_EVENT_AXIS_GENERIC_2, top);
             out.setAxisValue(AMOTION_EVENT_AXIS_GENERIC_3, right);
@@ -2281,36 +2283,36 @@
     }
 
     switch (mPointerUsage) {
-        case POINTER_USAGE_GESTURES:
+        case PointerUsage::GESTURES:
             dispatchPointerGestures(when, policyFlags, false /*isTimeout*/);
             break;
-        case POINTER_USAGE_STYLUS:
+        case PointerUsage::STYLUS:
             dispatchPointerStylus(when, policyFlags);
             break;
-        case POINTER_USAGE_MOUSE:
+        case PointerUsage::MOUSE:
             dispatchPointerMouse(when, policyFlags);
             break;
-        default:
+        case PointerUsage::NONE:
             break;
     }
 }
 
 void TouchInputMapper::abortPointerUsage(nsecs_t when, uint32_t policyFlags) {
     switch (mPointerUsage) {
-        case POINTER_USAGE_GESTURES:
+        case PointerUsage::GESTURES:
             abortPointerGestures(when, policyFlags);
             break;
-        case POINTER_USAGE_STYLUS:
+        case PointerUsage::STYLUS:
             abortPointerStylus(when, policyFlags);
             break;
-        case POINTER_USAGE_MOUSE:
+        case PointerUsage::MOUSE:
             abortPointerMouse(when, policyFlags);
             break;
-        default:
+        case PointerUsage::NONE:
             break;
     }
 
-    mPointerUsage = POINTER_USAGE_NONE;
+    mPointerUsage = PointerUsage::NONE;
 }
 
 void TouchInputMapper::dispatchPointerGestures(nsecs_t when, uint32_t policyFlags, bool isTimeout) {
@@ -2326,49 +2328,49 @@
     }
 
     // Update the pointer presentation and spots.
-    if (mParameters.gestureMode == Parameters::GESTURE_MODE_MULTI_TOUCH) {
-        mPointerController->setPresentation(PointerControllerInterface::PRESENTATION_POINTER);
+    if (mParameters.gestureMode == Parameters::GestureMode::MULTI_TOUCH) {
+        mPointerController->setPresentation(PointerControllerInterface::Presentation::POINTER);
         if (finishPreviousGesture || cancelPreviousGesture) {
             mPointerController->clearSpots();
         }
 
-        if (mPointerGesture.currentGestureMode == PointerGesture::FREEFORM) {
+        if (mPointerGesture.currentGestureMode == PointerGesture::Mode::FREEFORM) {
             mPointerController->setSpots(mPointerGesture.currentGestureCoords,
                                          mPointerGesture.currentGestureIdToIndex,
                                          mPointerGesture.currentGestureIdBits,
                                          mPointerController->getDisplayId());
         }
     } else {
-        mPointerController->setPresentation(PointerControllerInterface::PRESENTATION_POINTER);
+        mPointerController->setPresentation(PointerControllerInterface::Presentation::POINTER);
     }
 
     // Show or hide the pointer if needed.
     switch (mPointerGesture.currentGestureMode) {
-        case PointerGesture::NEUTRAL:
-        case PointerGesture::QUIET:
-            if (mParameters.gestureMode == Parameters::GESTURE_MODE_MULTI_TOUCH &&
-                mPointerGesture.lastGestureMode == PointerGesture::FREEFORM) {
+        case PointerGesture::Mode::NEUTRAL:
+        case PointerGesture::Mode::QUIET:
+            if (mParameters.gestureMode == Parameters::GestureMode::MULTI_TOUCH &&
+                mPointerGesture.lastGestureMode == PointerGesture::Mode::FREEFORM) {
                 // Remind the user of where the pointer is after finishing a gesture with spots.
-                mPointerController->unfade(PointerControllerInterface::TRANSITION_GRADUAL);
+                mPointerController->unfade(PointerControllerInterface::Transition::GRADUAL);
             }
             break;
-        case PointerGesture::TAP:
-        case PointerGesture::TAP_DRAG:
-        case PointerGesture::BUTTON_CLICK_OR_DRAG:
-        case PointerGesture::HOVER:
-        case PointerGesture::PRESS:
-        case PointerGesture::SWIPE:
+        case PointerGesture::Mode::TAP:
+        case PointerGesture::Mode::TAP_DRAG:
+        case PointerGesture::Mode::BUTTON_CLICK_OR_DRAG:
+        case PointerGesture::Mode::HOVER:
+        case PointerGesture::Mode::PRESS:
+        case PointerGesture::Mode::SWIPE:
             // Unfade the pointer when the current gesture manipulates the
             // area directly under the pointer.
-            mPointerController->unfade(PointerControllerInterface::TRANSITION_IMMEDIATE);
+            mPointerController->unfade(PointerControllerInterface::Transition::IMMEDIATE);
             break;
-        case PointerGesture::FREEFORM:
+        case PointerGesture::Mode::FREEFORM:
             // Fade the pointer when the current gesture manipulates a different
             // area and there are spots to guide the user experience.
-            if (mParameters.gestureMode == Parameters::GESTURE_MODE_MULTI_TOUCH) {
-                mPointerController->fade(PointerControllerInterface::TRANSITION_GRADUAL);
+            if (mParameters.gestureMode == Parameters::GestureMode::MULTI_TOUCH) {
+                mPointerController->fade(PointerControllerInterface::Transition::GRADUAL);
             } else {
-                mPointerController->unfade(PointerControllerInterface::TRANSITION_IMMEDIATE);
+                mPointerController->unfade(PointerControllerInterface::Transition::IMMEDIATE);
             }
             break;
     }
@@ -2379,12 +2381,12 @@
 
     // Update last coordinates of pointers that have moved so that we observe the new
     // pointer positions at the same time as other pointers that have just gone up.
-    bool down = mPointerGesture.currentGestureMode == PointerGesture::TAP ||
-            mPointerGesture.currentGestureMode == PointerGesture::TAP_DRAG ||
-            mPointerGesture.currentGestureMode == PointerGesture::BUTTON_CLICK_OR_DRAG ||
-            mPointerGesture.currentGestureMode == PointerGesture::PRESS ||
-            mPointerGesture.currentGestureMode == PointerGesture::SWIPE ||
-            mPointerGesture.currentGestureMode == PointerGesture::FREEFORM;
+    bool down = mPointerGesture.currentGestureMode == PointerGesture::Mode::TAP ||
+            mPointerGesture.currentGestureMode == PointerGesture::Mode::TAP_DRAG ||
+            mPointerGesture.currentGestureMode == PointerGesture::Mode::BUTTON_CLICK_OR_DRAG ||
+            mPointerGesture.currentGestureMode == PointerGesture::Mode::PRESS ||
+            mPointerGesture.currentGestureMode == PointerGesture::Mode::SWIPE ||
+            mPointerGesture.currentGestureMode == PointerGesture::Mode::FREEFORM;
     bool moveNeeded = false;
     if (down && !cancelPreviousGesture && !finishPreviousGesture &&
         !mPointerGesture.lastGestureIdBits.isEmpty() &&
@@ -2467,7 +2469,7 @@
     }
 
     // Send motion events for hover.
-    if (mPointerGesture.currentGestureMode == PointerGesture::HOVER) {
+    if (mPointerGesture.currentGestureMode == PointerGesture::Mode::HOVER) {
         dispatchMotion(when, policyFlags, mSource, AMOTION_EVENT_ACTION_HOVER_MOVE, 0, 0, metaState,
                        buttonState, AMOTION_EVENT_EDGE_FLAG_NONE,
                        mPointerGesture.currentGestureProperties,
@@ -2537,7 +2539,7 @@
 
     // Remove any current spots.
     if (mPointerController != nullptr) {
-        mPointerController->fade(PointerControllerInterface::TRANSITION_GRADUAL);
+        mPointerController->fade(PointerControllerInterface::Transition::GRADUAL);
         mPointerController->clearSpots();
     }
 }
@@ -2553,7 +2555,7 @@
         ALOGD("Gestures: Processing timeout");
 #endif
 
-        if (mPointerGesture.lastGestureMode == PointerGesture::TAP) {
+        if (mPointerGesture.lastGestureMode == PointerGesture::Mode::TAP) {
             if (when <= mPointerGesture.tapUpTime + mConfig.pointerGestureTapDragInterval) {
                 // The tap/drag timeout has not yet expired.
                 getContext()->requestTimeoutAtTime(mPointerGesture.tapUpTime +
@@ -2566,7 +2568,7 @@
                 *outFinishPreviousGesture = true;
 
                 mPointerGesture.activeGestureId = -1;
-                mPointerGesture.currentGestureMode = PointerGesture::NEUTRAL;
+                mPointerGesture.currentGestureMode = PointerGesture::Mode::NEUTRAL;
                 mPointerGesture.currentGestureIdBits.clear();
 
                 mPointerVelocityControl.reset();
@@ -2598,9 +2600,9 @@
 
     // If the gesture ever enters a mode other than TAP, HOVER or TAP_DRAG, without first returning
     // to NEUTRAL, then we should not generate tap event.
-    if (mPointerGesture.lastGestureMode != PointerGesture::HOVER &&
-        mPointerGesture.lastGestureMode != PointerGesture::TAP &&
-        mPointerGesture.lastGestureMode != PointerGesture::TAP_DRAG) {
+    if (mPointerGesture.lastGestureMode != PointerGesture::Mode::HOVER &&
+        mPointerGesture.lastGestureMode != PointerGesture::Mode::TAP &&
+        mPointerGesture.lastGestureMode != PointerGesture::Mode::TAP_DRAG) {
         mPointerGesture.resetTap();
     }
 
@@ -2633,15 +2635,16 @@
     } else {
         isQuietTime = when < mPointerGesture.quietTime + mConfig.pointerGestureQuietInterval;
         if (!isQuietTime) {
-            if ((mPointerGesture.lastGestureMode == PointerGesture::PRESS ||
-                 mPointerGesture.lastGestureMode == PointerGesture::SWIPE ||
-                 mPointerGesture.lastGestureMode == PointerGesture::FREEFORM) &&
+            if ((mPointerGesture.lastGestureMode == PointerGesture::Mode::PRESS ||
+                 mPointerGesture.lastGestureMode == PointerGesture::Mode::SWIPE ||
+                 mPointerGesture.lastGestureMode == PointerGesture::Mode::FREEFORM) &&
                 currentFingerCount < 2) {
                 // Enter quiet time when exiting swipe or freeform state.
                 // This is to prevent accidentally entering the hover state and flinging the
                 // pointer when finishing a swipe and there is still one pointer left onscreen.
                 isQuietTime = true;
-            } else if (mPointerGesture.lastGestureMode == PointerGesture::BUTTON_CLICK_OR_DRAG &&
+            } else if (mPointerGesture.lastGestureMode ==
+                               PointerGesture::Mode::BUTTON_CLICK_OR_DRAG &&
                        currentFingerCount >= 2 && !isPointerDown(mCurrentRawState.buttonState)) {
                 // Enter quiet time when releasing the button and there are still two or more
                 // fingers down.  This may indicate that one finger was used to press the button
@@ -2661,12 +2664,12 @@
         ALOGD("Gestures: QUIET for next %0.3fms",
               (mPointerGesture.quietTime + mConfig.pointerGestureQuietInterval - when) * 0.000001f);
 #endif
-        if (mPointerGesture.lastGestureMode != PointerGesture::QUIET) {
+        if (mPointerGesture.lastGestureMode != PointerGesture::Mode::QUIET) {
             *outFinishPreviousGesture = true;
         }
 
         mPointerGesture.activeGestureId = -1;
-        mPointerGesture.currentGestureMode = PointerGesture::QUIET;
+        mPointerGesture.currentGestureMode = PointerGesture::Mode::QUIET;
         mPointerGesture.currentGestureIdBits.clear();
 
         mPointerVelocityControl.reset();
@@ -2690,7 +2693,7 @@
               activeTouchId, currentFingerCount);
 #endif
         // Reset state when just starting.
-        if (mPointerGesture.lastGestureMode != PointerGesture::BUTTON_CLICK_OR_DRAG) {
+        if (mPointerGesture.lastGestureMode != PointerGesture::Mode::BUTTON_CLICK_OR_DRAG) {
             *outFinishPreviousGesture = true;
             mPointerGesture.activeGestureId = 0;
         }
@@ -2744,7 +2747,7 @@
         float x, y;
         mPointerController->getPosition(&x, &y);
 
-        mPointerGesture.currentGestureMode = PointerGesture::BUTTON_CLICK_OR_DRAG;
+        mPointerGesture.currentGestureMode = PointerGesture::Mode::BUTTON_CLICK_OR_DRAG;
         mPointerGesture.currentGestureIdBits.clear();
         mPointerGesture.currentGestureIdBits.markBit(mPointerGesture.activeGestureId);
         mPointerGesture.currentGestureIdToIndex[mPointerGesture.activeGestureId] = 0;
@@ -2757,15 +2760,15 @@
         mPointerGesture.currentGestureCoords[0].setAxisValue(AMOTION_EVENT_AXIS_PRESSURE, 1.0f);
     } else if (currentFingerCount == 0) {
         // Case 3. No fingers down and button is not pressed. (NEUTRAL)
-        if (mPointerGesture.lastGestureMode != PointerGesture::NEUTRAL) {
+        if (mPointerGesture.lastGestureMode != PointerGesture::Mode::NEUTRAL) {
             *outFinishPreviousGesture = true;
         }
 
         // Watch for taps coming out of HOVER or TAP_DRAG mode.
         // Checking for taps after TAP_DRAG allows us to detect double-taps.
         bool tapped = false;
-        if ((mPointerGesture.lastGestureMode == PointerGesture::HOVER ||
-             mPointerGesture.lastGestureMode == PointerGesture::TAP_DRAG) &&
+        if ((mPointerGesture.lastGestureMode == PointerGesture::Mode::HOVER ||
+             mPointerGesture.lastGestureMode == PointerGesture::Mode::TAP_DRAG) &&
             lastFingerCount == 1) {
             if (when <= mPointerGesture.tapDownTime + mConfig.pointerGestureTapInterval) {
                 float x, y;
@@ -2781,7 +2784,7 @@
                                                        mConfig.pointerGestureTapDragInterval);
 
                     mPointerGesture.activeGestureId = 0;
-                    mPointerGesture.currentGestureMode = PointerGesture::TAP;
+                    mPointerGesture.currentGestureMode = PointerGesture::Mode::TAP;
                     mPointerGesture.currentGestureIdBits.clear();
                     mPointerGesture.currentGestureIdBits.markBit(mPointerGesture.activeGestureId);
                     mPointerGesture.currentGestureIdToIndex[mPointerGesture.activeGestureId] = 0;
@@ -2824,7 +2827,7 @@
             ALOGD("Gestures: NEUTRAL");
 #endif
             mPointerGesture.activeGestureId = -1;
-            mPointerGesture.currentGestureMode = PointerGesture::NEUTRAL;
+            mPointerGesture.currentGestureMode = PointerGesture::Mode::NEUTRAL;
             mPointerGesture.currentGestureIdBits.clear();
         }
     } else if (currentFingerCount == 1) {
@@ -2834,14 +2837,14 @@
         // When in TAP_DRAG, emit MOVE events at the pointer location.
         ALOG_ASSERT(activeTouchId >= 0);
 
-        mPointerGesture.currentGestureMode = PointerGesture::HOVER;
-        if (mPointerGesture.lastGestureMode == PointerGesture::TAP) {
+        mPointerGesture.currentGestureMode = PointerGesture::Mode::HOVER;
+        if (mPointerGesture.lastGestureMode == PointerGesture::Mode::TAP) {
             if (when <= mPointerGesture.tapUpTime + mConfig.pointerGestureTapDragInterval) {
                 float x, y;
                 mPointerController->getPosition(&x, &y);
                 if (fabs(x - mPointerGesture.tapX) <= mConfig.pointerGestureTapSlop &&
                     fabs(y - mPointerGesture.tapY) <= mConfig.pointerGestureTapSlop) {
-                    mPointerGesture.currentGestureMode = PointerGesture::TAP_DRAG;
+                    mPointerGesture.currentGestureMode = PointerGesture::Mode::TAP_DRAG;
                 } else {
 #if DEBUG_GESTURES
                     ALOGD("Gestures: Not a TAP_DRAG, deltaX=%f, deltaY=%f",
@@ -2854,8 +2857,8 @@
                       (when - mPointerGesture.tapUpTime) * 0.000001f);
 #endif
             }
-        } else if (mPointerGesture.lastGestureMode == PointerGesture::TAP_DRAG) {
-            mPointerGesture.currentGestureMode = PointerGesture::TAP_DRAG;
+        } else if (mPointerGesture.lastGestureMode == PointerGesture::Mode::TAP_DRAG) {
+            mPointerGesture.currentGestureMode = PointerGesture::Mode::TAP_DRAG;
         }
 
         float deltaX = 0, deltaY = 0;
@@ -2878,7 +2881,7 @@
         }
 
         bool down;
-        if (mPointerGesture.currentGestureMode == PointerGesture::TAP_DRAG) {
+        if (mPointerGesture.currentGestureMode == PointerGesture::Mode::TAP_DRAG) {
 #if DEBUG_GESTURES
             ALOGD("Gestures: TAP_DRAG");
 #endif
@@ -2887,7 +2890,7 @@
 #if DEBUG_GESTURES
             ALOGD("Gestures: HOVER");
 #endif
-            if (mPointerGesture.lastGestureMode != PointerGesture::HOVER) {
+            if (mPointerGesture.lastGestureMode != PointerGesture::Mode::HOVER) {
                 *outFinishPreviousGesture = true;
             }
             mPointerGesture.activeGestureId = 0;
@@ -2933,9 +2936,9 @@
 
         bool settled = when >=
                 mPointerGesture.firstTouchTime + mConfig.pointerGestureMultitouchSettleInterval;
-        if (mPointerGesture.lastGestureMode != PointerGesture::PRESS &&
-            mPointerGesture.lastGestureMode != PointerGesture::SWIPE &&
-            mPointerGesture.lastGestureMode != PointerGesture::FREEFORM) {
+        if (mPointerGesture.lastGestureMode != PointerGesture::Mode::PRESS &&
+            mPointerGesture.lastGestureMode != PointerGesture::Mode::SWIPE &&
+            mPointerGesture.lastGestureMode != PointerGesture::Mode::FREEFORM) {
             *outFinishPreviousGesture = true;
         } else if (!settled && currentFingerCount > lastFingerCount) {
             // Additional pointers have gone down but not yet settled.
@@ -2953,7 +2956,7 @@
         }
 
         if (*outFinishPreviousGesture || *outCancelPreviousGesture) {
-            mPointerGesture.currentGestureMode = PointerGesture::PRESS;
+            mPointerGesture.currentGestureMode = PointerGesture::Mode::PRESS;
             mPointerGesture.activeGestureId = 0;
             mPointerGesture.referenceIdBits.clear();
             mPointerVelocityControl.reset();
@@ -3005,7 +3008,7 @@
         }
 
         // Consider transitions from PRESS to SWIPE or MULTITOUCH.
-        if (mPointerGesture.currentGestureMode == PointerGesture::PRESS) {
+        if (mPointerGesture.currentGestureMode == PointerGesture::Mode::PRESS) {
             float dist[MAX_POINTER_ID + 1];
             int32_t distOverThreshold = 0;
             for (BitSet32 idBits(mPointerGesture.referenceIdBits); !idBits.isEmpty();) {
@@ -3027,7 +3030,7 @@
                           currentFingerCount);
 #endif
                     *outCancelPreviousGesture = true;
-                    mPointerGesture.currentGestureMode = PointerGesture::FREEFORM;
+                    mPointerGesture.currentGestureMode = PointerGesture::Mode::FREEFORM;
                 } else {
                     // There are exactly two pointers.
                     BitSet32 idBits(mCurrentCookedState.fingerIdBits);
@@ -3046,7 +3049,7 @@
                               mutualDistance, mPointerGestureMaxSwipeWidth);
 #endif
                         *outCancelPreviousGesture = true;
-                        mPointerGesture.currentGestureMode = PointerGesture::FREEFORM;
+                        mPointerGesture.currentGestureMode = PointerGesture::Mode::FREEFORM;
                     } else {
                         // There are two pointers.  Wait for both pointers to start moving
                         // before deciding whether this is a SWIPE or FREEFORM gesture.
@@ -3077,7 +3080,7 @@
                                       mConfig.pointerGestureMultitouchMinDistance, cosine,
                                       mConfig.pointerGestureSwipeTransitionAngleCosine);
 #endif
-                                mPointerGesture.currentGestureMode = PointerGesture::SWIPE;
+                                mPointerGesture.currentGestureMode = PointerGesture::Mode::SWIPE;
                             } else {
                                 // Pointers are moving in different directions.  Switch to FREEFORM.
 #if DEBUG_GESTURES
@@ -3089,13 +3092,13 @@
                                       mConfig.pointerGestureSwipeTransitionAngleCosine);
 #endif
                                 *outCancelPreviousGesture = true;
-                                mPointerGesture.currentGestureMode = PointerGesture::FREEFORM;
+                                mPointerGesture.currentGestureMode = PointerGesture::Mode::FREEFORM;
                             }
                         }
                     }
                 }
             }
-        } else if (mPointerGesture.currentGestureMode == PointerGesture::SWIPE) {
+        } else if (mPointerGesture.currentGestureMode == PointerGesture::Mode::SWIPE) {
             // Switch from SWIPE to FREEFORM if additional pointers go down.
             // Cancel previous gesture.
             if (currentFingerCount > 2) {
@@ -3104,13 +3107,13 @@
                       currentFingerCount);
 #endif
                 *outCancelPreviousGesture = true;
-                mPointerGesture.currentGestureMode = PointerGesture::FREEFORM;
+                mPointerGesture.currentGestureMode = PointerGesture::Mode::FREEFORM;
             }
         }
 
         // Move the reference points based on the overall group motion of the fingers
         // except in PRESS mode while waiting for a transition to occur.
-        if (mPointerGesture.currentGestureMode != PointerGesture::PRESS &&
+        if (mPointerGesture.currentGestureMode != PointerGesture::Mode::PRESS &&
             (commonDeltaX || commonDeltaY)) {
             for (BitSet32 idBits(mPointerGesture.referenceIdBits); !idBits.isEmpty();) {
                 uint32_t id = idBits.clearFirstMarkedBit();
@@ -3133,8 +3136,8 @@
         }
 
         // Report gestures.
-        if (mPointerGesture.currentGestureMode == PointerGesture::PRESS ||
-            mPointerGesture.currentGestureMode == PointerGesture::SWIPE) {
+        if (mPointerGesture.currentGestureMode == PointerGesture::Mode::PRESS ||
+            mPointerGesture.currentGestureMode == PointerGesture::Mode::SWIPE) {
             // PRESS or SWIPE mode.
 #if DEBUG_GESTURES
             ALOGD("Gestures: PRESS or SWIPE activeTouchId=%d,"
@@ -3155,7 +3158,7 @@
             mPointerGesture.currentGestureCoords[0].setAxisValue(AMOTION_EVENT_AXIS_Y,
                                                                  mPointerGesture.referenceGestureY);
             mPointerGesture.currentGestureCoords[0].setAxisValue(AMOTION_EVENT_AXIS_PRESSURE, 1.0f);
-        } else if (mPointerGesture.currentGestureMode == PointerGesture::FREEFORM) {
+        } else if (mPointerGesture.currentGestureMode == PointerGesture::Mode::FREEFORM) {
             // FREEFORM mode.
 #if DEBUG_GESTURES
             ALOGD("Gestures: FREEFORM activeTouchId=%d,"
@@ -3168,7 +3171,7 @@
 
             BitSet32 mappedTouchIdBits;
             BitSet32 usedGestureIdBits;
-            if (mPointerGesture.lastGestureMode != PointerGesture::FREEFORM) {
+            if (mPointerGesture.lastGestureMode != PointerGesture::Mode::FREEFORM) {
                 // Initially, assign the active gesture id to the active touch point
                 // if there is one.  No other touch id bits are mapped yet.
                 if (!*outCancelPreviousGesture) {
@@ -3396,12 +3399,12 @@
     int32_t displayId = mViewport.displayId;
 
     if (down || hovering) {
-        mPointerController->setPresentation(PointerControllerInterface::PRESENTATION_POINTER);
+        mPointerController->setPresentation(PointerControllerInterface::Presentation::POINTER);
         mPointerController->clearSpots();
         mPointerController->setButtonState(mCurrentRawState.buttonState);
-        mPointerController->unfade(PointerControllerInterface::TRANSITION_IMMEDIATE);
+        mPointerController->unfade(PointerControllerInterface::Transition::IMMEDIATE);
     } else if (!down && !hovering && (mPointerSimple.down || mPointerSimple.hovering)) {
-        mPointerController->fade(PointerControllerInterface::TRANSITION_GRADUAL);
+        mPointerController->fade(PointerControllerInterface::Transition::GRADUAL);
     }
     displayId = mPointerController->getDisplayId();
 
@@ -3568,7 +3571,7 @@
     }
     float xCursorPosition = AMOTION_EVENT_INVALID_CURSOR_POSITION;
     float yCursorPosition = AMOTION_EVENT_INVALID_CURSOR_POSITION;
-    if (mDeviceMode == DEVICE_MODE_POINTER) {
+    if (mDeviceMode == DeviceMode::POINTER) {
         mPointerController->getPosition(&xCursorPosition, &yCursorPosition);
     }
     const int32_t displayId = getAssociatedDisplayId().value_or(ADISPLAY_ID_NONE);
@@ -3907,7 +3910,7 @@
 
 std::optional<int32_t> TouchInputMapper::getAssociatedDisplayId() {
     if (mParameters.hasAssociatedDisplay) {
-        if (mDeviceMode == DEVICE_MODE_POINTER) {
+        if (mDeviceMode == DeviceMode::POINTER) {
             return std::make_optional(mPointerController->getDisplayId());
         } else {
             return std::make_optional(mViewport.displayId);
diff --git a/services/inputflinger/reader/mapper/TouchInputMapper.h b/services/inputflinger/reader/mapper/TouchInputMapper.h
index 7f811a0..d437e01 100644
--- a/services/inputflinger/reader/mapper/TouchInputMapper.h
+++ b/services/inputflinger/reader/mapper/TouchInputMapper.h
@@ -17,6 +17,8 @@
 #ifndef _UI_INPUTREADER_TOUCH_INPUT_MAPPER_H
 #define _UI_INPUTREADER_TOUCH_INPUT_MAPPER_H
 
+#include <stdint.h>
+
 #include "CursorButtonAccumulator.h"
 #include "CursorScrollAccumulator.h"
 #include "EventHub.h"
@@ -24,8 +26,6 @@
 #include "InputReaderBase.h"
 #include "TouchButtonAccumulator.h"
 
-#include <stdint.h>
-
 namespace android {
 
 /* Raw axis information from the driver. */
@@ -133,25 +133,24 @@
 class TouchInputMapper : public InputMapper {
 public:
     explicit TouchInputMapper(InputDeviceContext& deviceContext);
-    virtual ~TouchInputMapper();
+    ~TouchInputMapper() override;
 
-    virtual uint32_t getSources() override;
-    virtual void populateDeviceInfo(InputDeviceInfo* deviceInfo) override;
-    virtual void dump(std::string& dump) override;
-    virtual void configure(nsecs_t when, const InputReaderConfiguration* config,
-                           uint32_t changes) override;
-    virtual void reset(nsecs_t when) override;
-    virtual void process(const RawEvent* rawEvent) override;
+    uint32_t getSources() override;
+    void populateDeviceInfo(InputDeviceInfo* deviceInfo) override;
+    void dump(std::string& dump) override;
+    void configure(nsecs_t when, const InputReaderConfiguration* config, uint32_t changes) override;
+    void reset(nsecs_t when) override;
+    void process(const RawEvent* rawEvent) override;
 
-    virtual int32_t getKeyCodeState(uint32_t sourceMask, int32_t keyCode) override;
-    virtual int32_t getScanCodeState(uint32_t sourceMask, int32_t scanCode) override;
-    virtual bool markSupportedKeyCodes(uint32_t sourceMask, size_t numCodes,
-                                       const int32_t* keyCodes, uint8_t* outFlags) override;
+    int32_t getKeyCodeState(uint32_t sourceMask, int32_t keyCode) override;
+    int32_t getScanCodeState(uint32_t sourceMask, int32_t scanCode) override;
+    bool markSupportedKeyCodes(uint32_t sourceMask, size_t numCodes, const int32_t* keyCodes,
+                               uint8_t* outFlags) override;
 
-    virtual void cancelTouch(nsecs_t when) override;
-    virtual void timeoutExpired(nsecs_t when) override;
-    virtual void updateExternalStylusState(const StylusState& state) override;
-    virtual std::optional<int32_t> getAssociatedDisplayId() override;
+    void cancelTouch(nsecs_t when) override;
+    void timeoutExpired(nsecs_t when) override;
+    void updateExternalStylusState(const StylusState& state) override;
+    std::optional<int32_t> getAssociatedDisplayId() override;
 
 protected:
     CursorButtonAccumulator mCursorButtonAccumulator;
@@ -177,12 +176,12 @@
     // Input sources and device mode.
     uint32_t mSource;
 
-    enum DeviceMode {
-        DEVICE_MODE_DISABLED,   // input is disabled
-        DEVICE_MODE_DIRECT,     // direct mapping (touchscreen)
-        DEVICE_MODE_UNSCALED,   // unscaled mapping (touchpad)
-        DEVICE_MODE_NAVIGATION, // unscaled mapping with assist gesture (touch navigation)
-        DEVICE_MODE_POINTER,    // pointer mapping (pointer)
+    enum class DeviceMode {
+        DISABLED,   // input is disabled
+        DIRECT,     // direct mapping (touchscreen)
+        UNSCALED,   // unscaled mapping (touchpad)
+        NAVIGATION, // unscaled mapping with assist gesture (touch navigation)
+        POINTER,    // pointer mapping (pointer)
     };
     DeviceMode mDeviceMode;
 
@@ -191,11 +190,11 @@
 
     // Immutable configuration parameters.
     struct Parameters {
-        enum DeviceType {
-            DEVICE_TYPE_TOUCH_SCREEN,
-            DEVICE_TYPE_TOUCH_PAD,
-            DEVICE_TYPE_TOUCH_NAVIGATION,
-            DEVICE_TYPE_POINTER,
+        enum class DeviceType {
+            TOUCH_SCREEN,
+            TOUCH_PAD,
+            TOUCH_NAVIGATION,
+            POINTER,
         };
 
         DeviceType deviceType;
@@ -205,9 +204,9 @@
         bool hasButtonUnderPad;
         std::string uniqueDisplayId;
 
-        enum GestureMode {
-            GESTURE_MODE_SINGLE_TOUCH,
-            GESTURE_MODE_MULTI_TOUCH,
+        enum class GestureMode {
+            SINGLE_TOUCH,
+            MULTI_TOUCH,
         };
         GestureMode gestureMode;
 
@@ -217,13 +216,13 @@
     // Immutable calibration parameters in parsed form.
     struct Calibration {
         // Size
-        enum SizeCalibration {
-            SIZE_CALIBRATION_DEFAULT,
-            SIZE_CALIBRATION_NONE,
-            SIZE_CALIBRATION_GEOMETRIC,
-            SIZE_CALIBRATION_DIAMETER,
-            SIZE_CALIBRATION_BOX,
-            SIZE_CALIBRATION_AREA,
+        enum class SizeCalibration {
+            DEFAULT,
+            NONE,
+            GEOMETRIC,
+            DIAMETER,
+            BOX,
+            AREA,
         };
 
         SizeCalibration sizeCalibration;
@@ -236,11 +235,11 @@
         bool sizeIsSummed;
 
         // Pressure
-        enum PressureCalibration {
-            PRESSURE_CALIBRATION_DEFAULT,
-            PRESSURE_CALIBRATION_NONE,
-            PRESSURE_CALIBRATION_PHYSICAL,
-            PRESSURE_CALIBRATION_AMPLITUDE,
+        enum class PressureCalibration {
+            DEFAULT,
+            NONE,
+            PHYSICAL,
+            AMPLITUDE,
         };
 
         PressureCalibration pressureCalibration;
@@ -248,30 +247,30 @@
         float pressureScale;
 
         // Orientation
-        enum OrientationCalibration {
-            ORIENTATION_CALIBRATION_DEFAULT,
-            ORIENTATION_CALIBRATION_NONE,
-            ORIENTATION_CALIBRATION_INTERPOLATED,
-            ORIENTATION_CALIBRATION_VECTOR,
+        enum class OrientationCalibration {
+            DEFAULT,
+            NONE,
+            INTERPOLATED,
+            VECTOR,
         };
 
         OrientationCalibration orientationCalibration;
 
         // Distance
-        enum DistanceCalibration {
-            DISTANCE_CALIBRATION_DEFAULT,
-            DISTANCE_CALIBRATION_NONE,
-            DISTANCE_CALIBRATION_SCALED,
+        enum class DistanceCalibration {
+            DEFAULT,
+            NONE,
+            SCALED,
         };
 
         DistanceCalibration distanceCalibration;
         bool haveDistanceScale;
         float distanceScale;
 
-        enum CoverageCalibration {
-            COVERAGE_CALIBRATION_DEFAULT,
-            COVERAGE_CALIBRATION_NONE,
-            COVERAGE_CALIBRATION_BOX,
+        enum class CoverageCalibration {
+            DEFAULT,
+            NONE,
+            BOX,
         };
 
         CoverageCalibration coverageCalibration;
@@ -524,16 +523,16 @@
         uint64_t distance : 48; // squared distance
     };
 
-    enum PointerUsage {
-        POINTER_USAGE_NONE,
-        POINTER_USAGE_GESTURES,
-        POINTER_USAGE_STYLUS,
-        POINTER_USAGE_MOUSE,
+    enum class PointerUsage {
+        NONE,
+        GESTURES,
+        STYLUS,
+        MOUSE,
     };
     PointerUsage mPointerUsage;
 
     struct PointerGesture {
-        enum Mode {
+        enum class Mode {
             // No fingers, button is not pressed.
             // Nothing happening.
             NEUTRAL,
@@ -646,9 +645,9 @@
             firstTouchTime = LLONG_MIN;
             activeTouchId = -1;
             activeGestureId = -1;
-            currentGestureMode = NEUTRAL;
+            currentGestureMode = Mode::NEUTRAL;
             currentGestureIdBits.clear();
-            lastGestureMode = NEUTRAL;
+            lastGestureMode = Mode::NEUTRAL;
             lastGestureIdBits.clear();
             downTime = 0;
             velocityTracker.clear();
diff --git a/services/inputflinger/tests/Android.bp b/services/inputflinger/tests/Android.bp
index a0d2f4f..eae0963 100644
--- a/services/inputflinger/tests/Android.bp
+++ b/services/inputflinger/tests/Android.bp
@@ -35,7 +35,14 @@
         "InputClassifierConverter_test.cpp",
         "InputDispatcher_test.cpp",
         "InputReader_test.cpp",
+        "InputFlingerService_test.cpp",
         "UinputDevice.cpp",
+        "IInputFlingerQuery.aidl"
     ],
+    aidl: {
+        include_dirs: [
+            "frameworks/native/libs/input",
+        ],
+    },
     require_root: true,
 }
diff --git a/services/inputflinger/tests/IInputFlingerQuery.aidl b/services/inputflinger/tests/IInputFlingerQuery.aidl
new file mode 100644
index 0000000..1edc089
--- /dev/null
+++ b/services/inputflinger/tests/IInputFlingerQuery.aidl
@@ -0,0 +1,27 @@
+/**
+ * Copyright (c) 2020, 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.
+ */
+
+import android.InputChannelInfo;
+import android.InputWindowInfo;
+import android.os.ISetInputWindowsListener;
+
+/** @hide */
+interface IInputFlingerQuery
+{
+    /* Test interfaces */
+    void getInputWindows(out InputWindowInfo[] inputHandles);
+    void getInputChannels(out InputChannelInfo[] infos);
+}
diff --git a/services/inputflinger/tests/InputDispatcher_test.cpp b/services/inputflinger/tests/InputDispatcher_test.cpp
index ea4d885..cf5a3ab 100644
--- a/services/inputflinger/tests/InputDispatcher_test.cpp
+++ b/services/inputflinger/tests/InputDispatcher_test.cpp
@@ -198,13 +198,14 @@
         mConfigurationChangedTime = when;
     }
 
-    virtual nsecs_t notifyAnr(const sp<InputApplicationHandle>& application,
-                              const sp<IBinder>& windowToken, const std::string&) override {
+    std::chrono::nanoseconds notifyAnr(const sp<InputApplicationHandle>& application,
+                                       const sp<IBinder>& windowToken,
+                                       const std::string&) override {
         std::scoped_lock lock(mLock);
         mAnrApplications.push(application);
         mAnrWindowTokens.push(windowToken);
         mNotifyAnr.notify_all();
-        return mAnrTimeout.count();
+        return mAnrTimeout;
     }
 
     virtual void notifyInputChannelBroken(const sp<IBinder>&) override {}
@@ -585,7 +586,7 @@
     FakeApplicationHandle() {
         mInfo.name = "Fake Application";
         mInfo.token = new BBinder();
-        mInfo.dispatchingTimeout = DISPATCHING_TIMEOUT.count();
+        mInfo.dispatchingTimeout = DISPATCHING_TIMEOUT;
     }
     virtual ~FakeApplicationHandle() {}
 
@@ -594,7 +595,7 @@
     }
 
     void setDispatchingTimeout(std::chrono::nanoseconds timeout) {
-        mInfo.dispatchingTimeout = timeout.count();
+        mInfo.dispatchingTimeout = timeout;
     }
 };
 
@@ -767,7 +768,7 @@
         mInfo.name = name;
         mInfo.layoutParamsFlags = 0;
         mInfo.layoutParamsType = InputWindowInfo::TYPE_APPLICATION;
-        mInfo.dispatchingTimeout = DISPATCHING_TIMEOUT.count();
+        mInfo.dispatchingTimeout = DISPATCHING_TIMEOUT;
         mInfo.frameLeft = 0;
         mInfo.frameTop = 0;
         mInfo.frameRight = WIDTH;
@@ -791,7 +792,7 @@
     void setFocus(bool hasFocus) { mInfo.hasFocus = hasFocus; }
 
     void setDispatchingTimeout(std::chrono::nanoseconds timeout) {
-        mInfo.dispatchingTimeout = timeout.count();
+        mInfo.dispatchingTimeout = timeout;
     }
 
     void setPaused(bool paused) { mInfo.paused = paused; }
diff --git a/services/inputflinger/tests/InputFlingerService_test.cpp b/services/inputflinger/tests/InputFlingerService_test.cpp
new file mode 100644
index 0000000..fd3f562
--- /dev/null
+++ b/services/inputflinger/tests/InputFlingerService_test.cpp
@@ -0,0 +1,408 @@
+/*
+ * Copyright (C) 2020 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 <BnInputFlingerQuery.h>
+#include <IInputFlingerQuery.h>
+
+#include <android/os/BnInputFlinger.h>
+#include <android/os/BnSetInputWindowsListener.h>
+#include <android/os/IInputFlinger.h>
+#include <android/os/ISetInputWindowsListener.h>
+
+#include <binder/Binder.h>
+#include <binder/IPCThreadState.h>
+#include <binder/IServiceManager.h>
+#include <binder/Parcel.h>
+#include <binder/ProcessState.h>
+
+#include <input/Input.h>
+#include <input/InputTransport.h>
+#include <input/InputWindow.h>
+
+#include <gtest/gtest.h>
+#include <inttypes.h>
+#include <linux/uinput.h>
+#include <log/log.h>
+#include <ui/Rect.h>
+#include <ui/Region.h>
+#include <chrono>
+#include <thread>
+#include <unordered_map>
+
+#define TAG "InputFlingerServiceTest"
+
+using android::os::BnInputFlinger;
+using android::os::BnSetInputWindowsListener;
+using android::os::IInputFlinger;
+using android::os::ISetInputWindowsListener;
+
+using std::chrono_literals::operator""ms;
+using std::chrono_literals::operator""s;
+
+namespace android {
+
+static const sp<IBinder> TestInfoToken = new BBinder();
+static constexpr int32_t TestInfoId = 1;
+static const std::string TestInfoName = "InputFlingerServiceTestInputWindowInfo";
+static constexpr int32_t TestInfoLayoutParamsFlags = 0xABCD;
+static constexpr int32_t TestInfoLayoutParamsType = 39;
+static constexpr std::chrono::duration TestInfoDispatchingTimeout = 2532ms;
+static constexpr int32_t TestInfoFrameLeft = 93;
+static constexpr int32_t TestInfoFrameTop = 34;
+static constexpr int32_t TestInfoFrameRight = 16;
+static constexpr int32_t TestInfoFrameBottom = 19;
+static constexpr int32_t TestInfoSurfaceInset = 17;
+static constexpr float TestInfoGlobalScaleFactor = 0.3;
+static constexpr float TestInfoWindowXScale = 0.4;
+static constexpr float TestInfoWindowYScale = 0.5;
+static const Rect TestInfoTouchableRegionRect = {100 /* left */, 150 /* top */, 400 /* right */,
+                                                 450 /* bottom */};
+static const Region TestInfoTouchableRegion(TestInfoTouchableRegionRect);
+static constexpr bool TestInfoVisible = false;
+static constexpr bool TestInfoCanReceiveKeys = false;
+static constexpr bool TestInfoTrustedOverlay = true;
+static constexpr bool TestInfoHasFocus = false;
+static constexpr bool TestInfoHasWallpaper = false;
+static constexpr bool TestInfoPaused = false;
+static constexpr int32_t TestInfoOwnerPid = 19;
+static constexpr int32_t TestInfoOwnerUid = 24;
+static constexpr int32_t TestInfoInputFeatures = 29;
+static constexpr int32_t TestInfoDisplayId = 34;
+static constexpr int32_t TestInfoPortalToDisplayId = 2;
+static constexpr bool TestInfoReplaceTouchableRegionWithCrop = true;
+static const sp<IBinder> TestInfoTouchableRegionCropHandle = new BBinder();
+
+static const std::string TestAppInfoName = "InputFlingerServiceTestInputApplicationInfo";
+static const sp<IBinder> TestAppInfoToken = new BBinder();
+static constexpr std::chrono::duration TestAppInfoDispatchingTimeout = 12345678ms;
+
+static const String16 kTestServiceName = String16("InputFlingerService");
+static const String16 kQueryServiceName = String16("InputFlingerQueryService");
+
+struct SetInputWindowsListener;
+// --- InputFlingerServiceTest ---
+class InputFlingerServiceTest : public testing::Test {
+public:
+    void SetUp() override;
+    void TearDown() override;
+
+protected:
+    void InitializeInputFlinger();
+    void setInputWindowsByInfos(std::vector<InputWindowInfo>& infos);
+
+    void setInputWindowsFinished();
+    void verifyInputWindowInfo(const InputWindowInfo& info) const;
+    InputWindowInfo& getInfo() const { return const_cast<InputWindowInfo&>(mInfo); }
+
+    sp<IInputFlinger> mService;
+    sp<IInputFlingerQuery> mQuery;
+
+private:
+    sp<SetInputWindowsListener> mSetInputWindowsListener;
+    sp<InputChannel> mServerChannel, mClientChannel;
+    InputWindowInfo mInfo;
+    std::mutex mLock;
+    std::condition_variable mSetInputWindowsFinishedCondition;
+};
+
+struct SetInputWindowsListener : BnSetInputWindowsListener {
+    explicit SetInputWindowsListener(std::function<void()> cbFunc) : mCbFunc(cbFunc) {}
+
+    binder::Status onSetInputWindowsFinished() override;
+
+    std::function<void()> mCbFunc;
+};
+
+class TestInputManager : public BnInputFlinger {
+protected:
+    virtual ~TestInputManager(){};
+
+public:
+    TestInputManager(){};
+    void checkFdFlags(const android::base::unique_fd& fd);
+
+    binder::Status getInputWindows(std::vector<::android::InputWindowInfo>* inputHandles);
+    binder::Status getInputChannels(std::vector<::android::InputChannelInfo>* infos);
+
+    status_t dump(int fd, const Vector<String16>& args) override;
+
+    binder::Status setInputWindows(
+            const std::vector<InputWindowInfo>& handles,
+            const sp<ISetInputWindowsListener>& setInputWindowsListener) override;
+
+    binder::Status registerInputChannel(const InputChannelInfo& channel) override;
+    binder::Status unregisterInputChannel(const InputChannelInfo& channel) override;
+
+private:
+    mutable Mutex mLock;
+    std::unordered_map<int32_t, std::vector<sp<InputWindowHandle>>> mHandlesPerDisplay;
+    std::vector<sp<InputChannel>> mInputChannels;
+};
+
+class TestInputQuery : public BnInputFlingerQuery {
+public:
+    TestInputQuery(sp<android::TestInputManager> manager) : mManager(manager){};
+    binder::Status getInputWindows(std::vector<::android::InputWindowInfo>* inputHandles) override;
+    binder::Status getInputChannels(std::vector<::android::InputChannelInfo>* infos) override;
+
+private:
+    sp<android::TestInputManager> mManager;
+};
+
+binder::Status TestInputQuery::getInputWindows(
+        std::vector<::android::InputWindowInfo>* inputHandles) {
+    return mManager->getInputWindows(inputHandles);
+}
+
+binder::Status TestInputQuery::getInputChannels(std::vector<::android::InputChannelInfo>* infos) {
+    return mManager->getInputChannels(infos);
+}
+
+binder::Status SetInputWindowsListener::onSetInputWindowsFinished() {
+    if (mCbFunc != nullptr) {
+        mCbFunc();
+    }
+    return binder::Status::ok();
+}
+
+binder::Status TestInputManager::setInputWindows(
+        const std::vector<InputWindowInfo>& infos,
+        const sp<ISetInputWindowsListener>& setInputWindowsListener) {
+    AutoMutex _l(mLock);
+
+    for (const auto& info : infos) {
+        mHandlesPerDisplay.emplace(info.displayId, std::vector<sp<InputWindowHandle>>());
+        mHandlesPerDisplay[info.displayId].push_back(new InputWindowHandle(info));
+    }
+    if (setInputWindowsListener) {
+        setInputWindowsListener->onSetInputWindowsFinished();
+    }
+    return binder::Status::ok();
+}
+
+void TestInputManager::checkFdFlags(const android::base::unique_fd& fd) {
+    const int result = fcntl(fd, F_GETFL);
+    EXPECT_NE(result, -1);
+    EXPECT_EQ(result & O_NONBLOCK, O_NONBLOCK);
+}
+
+binder::Status TestInputManager::registerInputChannel(const InputChannelInfo& info) {
+    AutoMutex _l(mLock);
+    // check Fd flags
+    checkFdFlags(info.mFd);
+
+    android::base::unique_fd newFd(::dup(info.mFd));
+    sp<InputChannel> channel = InputChannel::create(info.mName, std::move(newFd), info.mToken);
+    mInputChannels.push_back(channel);
+
+    return binder::Status::ok();
+}
+
+binder::Status TestInputManager::unregisterInputChannel(const InputChannelInfo& info) {
+    AutoMutex _l(mLock);
+    // check Fd flags
+    checkFdFlags(info.mFd);
+    android::base::unique_fd newFd(::dup(info.mFd));
+    sp<InputChannel> channel = InputChannel::create(info.mName, std::move(newFd), info.mToken);
+
+    auto it = std::find_if(mInputChannels.begin(), mInputChannels.end(),
+                           [&](sp<InputChannel>& it) { return *it == *channel; });
+    if (it != mInputChannels.end()) {
+        mInputChannels.erase(it);
+    }
+
+    return binder::Status::ok();
+}
+
+status_t TestInputManager::dump(int fd, const Vector<String16>& args) {
+    std::string dump;
+
+    dump += " InputFlinger dump\n";
+
+    ::write(fd, dump.c_str(), dump.size());
+    return NO_ERROR;
+}
+
+binder::Status TestInputManager::getInputWindows(
+        std::vector<::android::InputWindowInfo>* inputInfos) {
+    for (auto& [displayId, inputHandles] : mHandlesPerDisplay) {
+        for (auto& inputHandle : inputHandles) {
+            inputInfos->push_back(*inputHandle->getInfo());
+        }
+    }
+    return binder::Status::ok();
+}
+
+binder::Status TestInputManager::getInputChannels(std::vector<::android::InputChannelInfo>* infos) {
+    infos->clear();
+    for (auto& channel : mInputChannels) {
+        auto chanDup = channel->dup();
+        infos->push_back(std::move(chanDup->getInfo()));
+    }
+    return binder::Status::ok();
+}
+
+void InputFlingerServiceTest::SetUp() {
+    mSetInputWindowsListener = new SetInputWindowsListener([&]() {
+        std::unique_lock<std::mutex> lock(mLock);
+        mSetInputWindowsFinishedCondition.notify_all();
+    });
+    InputChannel::openInputChannelPair("testchannels", mServerChannel, mClientChannel);
+
+    mInfo.token = TestInfoToken;
+    mInfo.id = TestInfoId;
+    mInfo.name = TestInfoName;
+    mInfo.layoutParamsFlags = TestInfoLayoutParamsFlags;
+    mInfo.layoutParamsType = TestInfoLayoutParamsType;
+    mInfo.dispatchingTimeout = TestInfoDispatchingTimeout;
+    mInfo.frameLeft = TestInfoFrameLeft;
+    mInfo.frameTop = TestInfoFrameTop;
+    mInfo.frameRight = TestInfoFrameRight;
+    mInfo.frameBottom = TestInfoFrameBottom;
+    mInfo.surfaceInset = TestInfoSurfaceInset;
+    mInfo.globalScaleFactor = TestInfoGlobalScaleFactor;
+    mInfo.windowXScale = TestInfoWindowXScale;
+    mInfo.windowYScale = TestInfoWindowYScale;
+    mInfo.touchableRegion = TestInfoTouchableRegion;
+    mInfo.visible = TestInfoVisible;
+    mInfo.canReceiveKeys = TestInfoCanReceiveKeys;
+    mInfo.trustedOverlay = TestInfoTrustedOverlay;
+    mInfo.hasFocus = TestInfoHasFocus;
+    mInfo.hasWallpaper = TestInfoHasWallpaper;
+    mInfo.paused = TestInfoPaused;
+    mInfo.ownerPid = TestInfoOwnerPid;
+    mInfo.ownerUid = TestInfoOwnerUid;
+    mInfo.inputFeatures = TestInfoInputFeatures;
+    mInfo.displayId = TestInfoDisplayId;
+    mInfo.portalToDisplayId = TestInfoPortalToDisplayId;
+    mInfo.replaceTouchableRegionWithCrop = TestInfoReplaceTouchableRegionWithCrop;
+    mInfo.touchableRegionCropHandle = TestInfoTouchableRegionCropHandle;
+
+    mInfo.applicationInfo.name = TestAppInfoName;
+    mInfo.applicationInfo.token = TestAppInfoToken;
+    mInfo.applicationInfo.dispatchingTimeout = TestAppInfoDispatchingTimeout;
+
+    InitializeInputFlinger();
+}
+
+void InputFlingerServiceTest::TearDown() {}
+
+void InputFlingerServiceTest::verifyInputWindowInfo(const InputWindowInfo& info) const {
+    EXPECT_EQ(mInfo, info);
+}
+
+void InputFlingerServiceTest::InitializeInputFlinger() {
+    sp<IBinder> input(defaultServiceManager()->waitForService(kTestServiceName));
+    ASSERT_TRUE(input != nullptr);
+    mService = interface_cast<IInputFlinger>(input);
+
+    input = defaultServiceManager()->waitForService(kQueryServiceName);
+    ASSERT_TRUE(input != nullptr);
+    mQuery = interface_cast<IInputFlingerQuery>(input);
+}
+
+void InputFlingerServiceTest::setInputWindowsByInfos(std::vector<InputWindowInfo>& infos) {
+    std::unique_lock<std::mutex> lock(mLock);
+    mService->setInputWindows(infos, mSetInputWindowsListener);
+    // Verify listener call
+    EXPECT_NE(mSetInputWindowsFinishedCondition.wait_for(lock, 1s), std::cv_status::timeout);
+    // Verify input windows from service
+    std::vector<::android::InputWindowInfo> inputHandles;
+    mQuery->getInputWindows(&inputHandles);
+    for (auto& inputInfo : inputHandles) {
+        verifyInputWindowInfo(inputInfo);
+    }
+}
+
+/**
+ *  Test InputFlinger service interface SetInputWindows
+ */
+TEST_F(InputFlingerServiceTest, InputWindow_SetInputWindows) {
+    std::vector<InputWindowInfo> infos = {getInfo()};
+    setInputWindowsByInfos(infos);
+}
+
+/**
+ *  Test InputFlinger service interface registerInputChannel
+ */
+TEST_F(InputFlingerServiceTest, InputWindow_RegisterInputChannel) {
+    sp<InputChannel> serverChannel, clientChannel;
+
+    InputChannel::openInputChannelPair("testchannels", serverChannel, clientChannel);
+    mService->registerInputChannel(serverChannel->getInfo());
+
+    std::vector<::android::InputChannelInfo> infos(2);
+    mQuery->getInputChannels(&infos);
+    EXPECT_EQ(infos.size(), 1UL);
+
+    auto& info = infos[0];
+    android::base::unique_fd newFd(::dup(info.mFd));
+    sp<InputChannel> channel = InputChannel::create(info.mName, std::move(newFd), info.mToken);
+    EXPECT_EQ(*channel, *serverChannel);
+
+    mService->unregisterInputChannel(serverChannel->getInfo());
+    mQuery->getInputChannels(&infos);
+    EXPECT_EQ(infos.size(), 0UL);
+}
+
+/**
+ *  Test InputFlinger service interface registerInputChannel with invalid cases
+ */
+TEST_F(InputFlingerServiceTest, InputWindow_RegisterInputChannelInvalid) {
+    sp<InputChannel> serverChannel, clientChannel;
+    InputChannel::openInputChannelPair("testchannels", serverChannel, clientChannel);
+
+    std::vector<::android::InputChannelInfo> infos(2);
+    mQuery->getInputChannels(&infos);
+    EXPECT_EQ(infos.size(), 0UL);
+
+    mService->registerInputChannel(InputChannelInfo());
+    mService->unregisterInputChannel(clientChannel->getInfo());
+
+    mService->registerInputChannel(serverChannel->getInfo());
+    mService->registerInputChannel(clientChannel->getInfo());
+    mQuery->getInputChannels(&infos);
+    EXPECT_EQ(infos.size(), 2UL);
+
+    mService->unregisterInputChannel(clientChannel->getInfo());
+    mService->unregisterInputChannel(serverChannel->getInfo());
+    mQuery->getInputChannels(&infos);
+    EXPECT_EQ(infos.size(), 0UL);
+}
+
+} // namespace android
+
+int main(int argc, char** argv) {
+    pid_t forkPid = fork();
+
+    if (forkPid == 0) {
+        // Server process
+        android::sp<android::TestInputManager> manager = new android::TestInputManager();
+        android::sp<android::TestInputQuery> query = new android::TestInputQuery(manager);
+
+        android::defaultServiceManager()->addService(android::kTestServiceName, manager,
+                                                     false /*allowIsolated*/);
+        android::defaultServiceManager()->addService(android::kQueryServiceName, query,
+                                                     false /*allowIsolated*/);
+        android::ProcessState::self()->startThreadPool();
+        android::IPCThreadState::self()->joinThreadPool();
+    } else {
+        android::ProcessState::self()->startThreadPool();
+        ::testing::InitGoogleTest(&argc, argv);
+        return RUN_ALL_TESTS();
+    }
+    return 0;
+}
diff --git a/services/inputflinger/tests/InputReader_test.cpp b/services/inputflinger/tests/InputReader_test.cpp
index 18bd3d0..fae7e64 100644
--- a/services/inputflinger/tests/InputReader_test.cpp
+++ b/services/inputflinger/tests/InputReader_test.cpp
@@ -1188,20 +1188,21 @@
 
     // We didn't add any viewports yet, so there shouldn't be any.
     std::optional<DisplayViewport> internalViewport =
-            mFakePolicy->getDisplayViewportByType(ViewportType::VIEWPORT_INTERNAL);
+            mFakePolicy->getDisplayViewportByType(ViewportType::INTERNAL);
     ASSERT_FALSE(internalViewport);
 
     // Add an internal viewport, then clear it
     mFakePolicy->addDisplayViewport(DISPLAY_ID, DISPLAY_WIDTH, DISPLAY_HEIGHT,
-            DISPLAY_ORIENTATION_0, uniqueId, NO_PORT, ViewportType::VIEWPORT_INTERNAL);
+                                    DISPLAY_ORIENTATION_0, uniqueId, NO_PORT,
+                                    ViewportType::INTERNAL);
 
     // Check matching by uniqueId
     internalViewport = mFakePolicy->getDisplayViewportByUniqueId(uniqueId);
     ASSERT_TRUE(internalViewport);
-    ASSERT_EQ(ViewportType::VIEWPORT_INTERNAL, internalViewport->type);
+    ASSERT_EQ(ViewportType::INTERNAL, internalViewport->type);
 
     // Check matching by viewport type
-    internalViewport = mFakePolicy->getDisplayViewportByType(ViewportType::VIEWPORT_INTERNAL);
+    internalViewport = mFakePolicy->getDisplayViewportByType(ViewportType::INTERNAL);
     ASSERT_TRUE(internalViewport);
     ASSERT_EQ(uniqueId, internalViewport->uniqueId);
 
@@ -1209,7 +1210,7 @@
     // Make sure nothing is found after clear
     internalViewport = mFakePolicy->getDisplayViewportByUniqueId(uniqueId);
     ASSERT_FALSE(internalViewport);
-    internalViewport = mFakePolicy->getDisplayViewportByType(ViewportType::VIEWPORT_INTERNAL);
+    internalViewport = mFakePolicy->getDisplayViewportByType(ViewportType::INTERNAL);
     ASSERT_FALSE(internalViewport);
 }
 
@@ -1223,26 +1224,30 @@
 
     // Add an internal viewport
     mFakePolicy->addDisplayViewport(DISPLAY_ID, DISPLAY_WIDTH, DISPLAY_HEIGHT,
-            DISPLAY_ORIENTATION_0, internalUniqueId, NO_PORT, ViewportType::VIEWPORT_INTERNAL);
+                                    DISPLAY_ORIENTATION_0, internalUniqueId, NO_PORT,
+                                    ViewportType::INTERNAL);
     // Add an external viewport
     mFakePolicy->addDisplayViewport(DISPLAY_ID, DISPLAY_WIDTH, DISPLAY_HEIGHT,
-            DISPLAY_ORIENTATION_0, externalUniqueId, NO_PORT, ViewportType::VIEWPORT_EXTERNAL);
+                                    DISPLAY_ORIENTATION_0, externalUniqueId, NO_PORT,
+                                    ViewportType::EXTERNAL);
     // Add an virtual viewport
     mFakePolicy->addDisplayViewport(virtualDisplayId1, DISPLAY_WIDTH, DISPLAY_HEIGHT,
-            DISPLAY_ORIENTATION_0, virtualUniqueId1, NO_PORT, ViewportType::VIEWPORT_VIRTUAL);
+                                    DISPLAY_ORIENTATION_0, virtualUniqueId1, NO_PORT,
+                                    ViewportType::VIRTUAL);
     // Add another virtual viewport
     mFakePolicy->addDisplayViewport(virtualDisplayId2, DISPLAY_WIDTH, DISPLAY_HEIGHT,
-            DISPLAY_ORIENTATION_0, virtualUniqueId2, NO_PORT, ViewportType::VIEWPORT_VIRTUAL);
+                                    DISPLAY_ORIENTATION_0, virtualUniqueId2, NO_PORT,
+                                    ViewportType::VIRTUAL);
 
     // Check matching by type for internal
     std::optional<DisplayViewport> internalViewport =
-            mFakePolicy->getDisplayViewportByType(ViewportType::VIEWPORT_INTERNAL);
+            mFakePolicy->getDisplayViewportByType(ViewportType::INTERNAL);
     ASSERT_TRUE(internalViewport);
     ASSERT_EQ(internalUniqueId, internalViewport->uniqueId);
 
     // Check matching by type for external
     std::optional<DisplayViewport> externalViewport =
-            mFakePolicy->getDisplayViewportByType(ViewportType::VIEWPORT_EXTERNAL);
+            mFakePolicy->getDisplayViewportByType(ViewportType::EXTERNAL);
     ASSERT_TRUE(externalViewport);
     ASSERT_EQ(externalUniqueId, externalViewport->uniqueId);
 
@@ -1250,7 +1255,7 @@
     std::optional<DisplayViewport> virtualViewport1 =
             mFakePolicy->getDisplayViewportByUniqueId(virtualUniqueId1);
     ASSERT_TRUE(virtualViewport1);
-    ASSERT_EQ(ViewportType::VIEWPORT_VIRTUAL, virtualViewport1->type);
+    ASSERT_EQ(ViewportType::VIRTUAL, virtualViewport1->type);
     ASSERT_EQ(virtualUniqueId1, virtualViewport1->uniqueId);
     ASSERT_EQ(virtualDisplayId1, virtualViewport1->displayId);
 
@@ -1258,7 +1263,7 @@
     std::optional<DisplayViewport> virtualViewport2 =
             mFakePolicy->getDisplayViewportByUniqueId(virtualUniqueId2);
     ASSERT_TRUE(virtualViewport2);
-    ASSERT_EQ(ViewportType::VIEWPORT_VIRTUAL, virtualViewport2->type);
+    ASSERT_EQ(ViewportType::VIRTUAL, virtualViewport2->type);
     ASSERT_EQ(virtualUniqueId2, virtualViewport2->uniqueId);
     ASSERT_EQ(virtualDisplayId2, virtualViewport2->displayId);
 }
@@ -1275,8 +1280,8 @@
     constexpr int32_t displayId1 = 2;
     constexpr int32_t displayId2 = 3;
 
-    std::vector<ViewportType> types = {ViewportType::VIEWPORT_INTERNAL,
-            ViewportType::VIEWPORT_EXTERNAL, ViewportType::VIEWPORT_VIRTUAL};
+    std::vector<ViewportType> types = {ViewportType::INTERNAL, ViewportType::EXTERNAL,
+                                       ViewportType::VIRTUAL};
     for (const ViewportType& type : types) {
         mFakePolicy->clearViewports();
         // Add a viewport
@@ -1314,7 +1319,7 @@
  * Check getDisplayViewportByPort
  */
 TEST_F(InputReaderPolicyTest, Viewports_GetByPort) {
-    constexpr ViewportType type = ViewportType::VIEWPORT_EXTERNAL;
+    constexpr ViewportType type = ViewportType::EXTERNAL;
     const std::string uniqueId1 = "uniqueId1";
     const std::string uniqueId2 = "uniqueId2";
     constexpr int32_t displayId1 = 1;
@@ -1708,9 +1713,11 @@
     // Add default and second display.
     mFakePolicy->clearViewports();
     mFakePolicy->addDisplayViewport(DISPLAY_ID, DISPLAY_WIDTH, DISPLAY_HEIGHT,
-            DISPLAY_ORIENTATION_0, "local:0", NO_PORT, ViewportType::VIEWPORT_INTERNAL);
+                                    DISPLAY_ORIENTATION_0, "local:0", NO_PORT,
+                                    ViewportType::INTERNAL);
     mFakePolicy->addDisplayViewport(SECONDARY_DISPLAY_ID, DISPLAY_WIDTH, DISPLAY_HEIGHT,
-            DISPLAY_ORIENTATION_0, "local:1", hdmi1, ViewportType::VIEWPORT_EXTERNAL);
+                                    DISPLAY_ORIENTATION_0, "local:1", hdmi1,
+                                    ViewportType::EXTERNAL);
     mReader->requestRefreshConfiguration(InputReaderConfiguration::CHANGE_DISPLAY_INFO);
     mReader->loopOnce();
 
@@ -1884,7 +1891,7 @@
         // At least add an internal display.
         setDisplayInfoAndReconfigure(DISPLAY_ID, DISPLAY_WIDTH, DISPLAY_HEIGHT,
                                      DISPLAY_ORIENTATION_0, UNIQUE_ID, NO_PORT,
-                                     ViewportType::VIEWPORT_INTERNAL);
+                                     ViewportType::INTERNAL);
 
         mDevice = createUinputDevice<UinputTouchScreen>(Rect(0, 0, DISPLAY_WIDTH, DISPLAY_HEIGHT));
         ASSERT_NO_FATAL_FAILURE(mFakePolicy->assertInputDevicesChanged());
@@ -2220,8 +2227,7 @@
 
     // Prepare displays.
     mFakePolicy->addDisplayViewport(SECONDARY_DISPLAY_ID, DISPLAY_WIDTH, DISPLAY_HEIGHT,
-                                    DISPLAY_ORIENTATION_0, UNIQUE_ID, hdmi,
-                                    ViewportType::VIEWPORT_INTERNAL);
+                                    DISPLAY_ORIENTATION_0, UNIQUE_ID, hdmi, ViewportType::INTERNAL);
     mDevice->configure(ARBITRARY_TIME, mFakePolicy->getReaderConfiguration(),
                        InputReaderConfiguration::CHANGE_DISPLAY_INFO);
     ASSERT_TRUE(mDevice->isEnabled());
@@ -2421,8 +2427,8 @@
  * orientation.
  */
 void KeyboardInputMapperTest::prepareDisplay(int32_t orientation) {
-    setDisplayInfoAndReconfigure(DISPLAY_ID, DISPLAY_WIDTH, DISPLAY_HEIGHT,
-            orientation, UNIQUE_ID, NO_PORT, ViewportType::VIEWPORT_INTERNAL);
+    setDisplayInfoAndReconfigure(DISPLAY_ID, DISPLAY_WIDTH, DISPLAY_HEIGHT, orientation, UNIQUE_ID,
+                                 NO_PORT, ViewportType::INTERNAL);
 }
 
 void KeyboardInputMapperTest::testDPadKeyRotation(KeyboardInputMapper& mapper,
@@ -2727,7 +2733,7 @@
     // ^--- already checked by the previous test
 
     setDisplayInfoAndReconfigure(DISPLAY_ID, DISPLAY_WIDTH, DISPLAY_HEIGHT, DISPLAY_ORIENTATION_0,
-            UNIQUE_ID, NO_PORT, ViewportType::VIEWPORT_INTERNAL);
+                                 UNIQUE_ID, NO_PORT, ViewportType::INTERNAL);
     process(mapper, ARBITRARY_TIME, EV_KEY, KEY_UP, 1);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
     process(mapper, ARBITRARY_TIME, EV_KEY, KEY_UP, 0);
@@ -2737,7 +2743,7 @@
     constexpr int32_t newDisplayId = 2;
     clearViewports();
     setDisplayInfoAndReconfigure(newDisplayId, DISPLAY_WIDTH, DISPLAY_HEIGHT, DISPLAY_ORIENTATION_0,
-            UNIQUE_ID, NO_PORT, ViewportType::VIEWPORT_INTERNAL);
+                                 UNIQUE_ID, NO_PORT, ViewportType::INTERNAL);
     process(mapper, ARBITRARY_TIME, EV_KEY, KEY_UP, 1);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyKeyWasCalled(&args));
     process(mapper, ARBITRARY_TIME, EV_KEY, KEY_UP, 0);
@@ -2898,9 +2904,9 @@
     // Prepare second display.
     constexpr int32_t newDisplayId = 2;
     setDisplayInfoAndReconfigure(DISPLAY_ID, DISPLAY_WIDTH, DISPLAY_HEIGHT, DISPLAY_ORIENTATION_0,
-                                 UNIQUE_ID, hdmi1, ViewportType::VIEWPORT_INTERNAL);
+                                 UNIQUE_ID, hdmi1, ViewportType::INTERNAL);
     setDisplayInfoAndReconfigure(newDisplayId, DISPLAY_WIDTH, DISPLAY_HEIGHT, DISPLAY_ORIENTATION_0,
-                                 SECONDARY_UNIQUE_ID, hdmi2, ViewportType::VIEWPORT_EXTERNAL);
+                                 SECONDARY_UNIQUE_ID, hdmi2, ViewportType::EXTERNAL);
     // Default device will reconfigure above, need additional reconfiguration for another device.
     device2->configure(ARBITRARY_TIME, mFakePolicy->getReaderConfiguration(),
                        InputReaderConfiguration::CHANGE_DISPLAY_INFO);
@@ -3035,7 +3041,7 @@
 
     void prepareDisplay(int32_t orientation) {
         const std::string uniqueId = "local:0";
-        const ViewportType viewportType = ViewportType::VIEWPORT_INTERNAL;
+        const ViewportType viewportType = ViewportType::INTERNAL;
         setDisplayInfoAndReconfigure(DISPLAY_ID, DISPLAY_WIDTH, DISPLAY_HEIGHT,
                 orientation, uniqueId, NO_PORT, viewportType);
     }
@@ -3780,8 +3786,7 @@
     constexpr int32_t SECOND_DISPLAY_ID = 1;
     const std::string SECOND_DISPLAY_UNIQUE_ID = "local:1";
     mFakePolicy->addDisplayViewport(SECOND_DISPLAY_ID, 800, 480, DISPLAY_ORIENTATION_0,
-                                    SECOND_DISPLAY_UNIQUE_ID, NO_PORT,
-                                    ViewportType::VIEWPORT_EXTERNAL);
+                                    SECOND_DISPLAY_UNIQUE_ID, NO_PORT, ViewportType::EXTERNAL);
     mFakePolicy->setDefaultPointerDisplayId(SECOND_DISPLAY_ID);
     configureDevice(InputReaderConfiguration::CHANGE_DISPLAY_INFO);
 
@@ -3908,8 +3913,8 @@
 };
 
 void TouchInputMapperTest::prepareDisplay(int32_t orientation, std::optional<uint8_t> port) {
-    setDisplayInfoAndReconfigure(DISPLAY_ID, DISPLAY_WIDTH, DISPLAY_HEIGHT, orientation,
-            UNIQUE_ID, port, ViewportType::VIEWPORT_INTERNAL);
+    setDisplayInfoAndReconfigure(DISPLAY_ID, DISPLAY_WIDTH, DISPLAY_HEIGHT, orientation, UNIQUE_ID,
+                                 port, ViewportType::INTERNAL);
 }
 
 void TouchInputMapperTest::prepareSecondaryDisplay(ViewportType type, std::optional<uint8_t> port) {
@@ -3918,9 +3923,9 @@
 }
 
 void TouchInputMapperTest::prepareVirtualDisplay(int32_t orientation) {
-    setDisplayInfoAndReconfigure(VIRTUAL_DISPLAY_ID, VIRTUAL_DISPLAY_WIDTH,
-        VIRTUAL_DISPLAY_HEIGHT, orientation,
-        VIRTUAL_DISPLAY_UNIQUE_ID, NO_PORT, ViewportType::VIEWPORT_VIRTUAL);
+    setDisplayInfoAndReconfigure(VIRTUAL_DISPLAY_ID, VIRTUAL_DISPLAY_WIDTH, VIRTUAL_DISPLAY_HEIGHT,
+                                 orientation, VIRTUAL_DISPLAY_UNIQUE_ID, NO_PORT,
+                                 ViewportType::VIRTUAL);
 }
 
 void TouchInputMapperTest::prepareVirtualKeys() {
@@ -6773,7 +6778,7 @@
     const uint8_t hdmi1 = 0;
     const uint8_t hdmi2 = 1;
     const std::string secondaryUniqueId = "uniqueId2";
-    constexpr ViewportType type = ViewportType::VIEWPORT_EXTERNAL;
+    constexpr ViewportType type = ViewportType::EXTERNAL;
 
     addConfigurationProperty("touch.deviceType", "touchScreen");
     prepareAxes(POSITION);
@@ -6814,7 +6819,7 @@
     mFakePolicy->setPointerController(mDevice->getId(), fakePointerController);
 
     mFakePolicy->setDefaultPointerDisplayId(SECONDARY_DISPLAY_ID);
-    prepareSecondaryDisplay(ViewportType::VIEWPORT_EXTERNAL);
+    prepareSecondaryDisplay(ViewportType::EXTERNAL);
 
     prepareDisplay(DISPLAY_ORIENTATION_0);
     prepareAxes(POSITION);
@@ -6881,11 +6886,11 @@
 
     // Create displays.
     prepareDisplay(DISPLAY_ORIENTATION_0, hdmi1);
-    prepareSecondaryDisplay(ViewportType::VIEWPORT_EXTERNAL, hdmi2);
+    prepareSecondaryDisplay(ViewportType::EXTERNAL, hdmi2);
 
     // Default device will reconfigure above, need additional reconfiguration for another device.
     device2->configure(ARBITRARY_TIME, mFakePolicy->getReaderConfiguration(),
-            InputReaderConfiguration::CHANGE_DISPLAY_INFO);
+                       InputReaderConfiguration::CHANGE_DISPLAY_INFO);
 
     // Two fingers down at default display.
     int32_t x1 = 100, y1 = 125, x2 = 300, y2 = 500;
@@ -6992,7 +6997,7 @@
 TEST_F(MultiTouchInputMapperTest, Configure_EnabledForAssociatedDisplay) {
     constexpr uint8_t hdmi2 = 1;
     const std::string secondaryUniqueId = "uniqueId2";
-    constexpr ViewportType type = ViewportType::VIEWPORT_EXTERNAL;
+    constexpr ViewportType type = ViewportType::EXTERNAL;
 
     mFakePolicy->addInputPortAssociation(DEVICE_LOCATION, hdmi2);
 
@@ -7206,7 +7211,7 @@
     ASSERT_EQ(ADISPLAY_ID_DEFAULT, motionArgs.displayId);
 
     // Expect the event to be sent to the external viewport if it is present.
-    prepareSecondaryDisplay(ViewportType::VIEWPORT_EXTERNAL);
+    prepareSecondaryDisplay(ViewportType::EXTERNAL);
     processPosition(mapper, 100, 100);
     processSync(mapper);
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyMotionWasCalled(&motionArgs));
@@ -7220,7 +7225,7 @@
 protected:
     void halfDisplayToCenterHorizontal(int32_t orientation) {
         std::optional<DisplayViewport> internalViewport =
-                mFakePolicy->getDisplayViewportByType(ViewportType::VIEWPORT_INTERNAL);
+                mFakePolicy->getDisplayViewportByType(ViewportType::INTERNAL);
 
         // Half display to (width/4, 0, width * 3/4, height) to make display has offset.
         internalViewport->orientation = orientation;
diff --git a/services/sensorservice/SensorDevice.cpp b/services/sensorservice/SensorDevice.cpp
index 8a282e2..e355594 100644
--- a/services/sensorservice/SensorDevice.cpp
+++ b/services/sensorservice/SensorDevice.cpp
@@ -153,12 +153,18 @@
                                     SensorDeviceUtils::defaultResolutionForType(sensor.type);
                         }
 
-                        double promotedResolution = sensor.resolution;
-                        double promotedMaxRange = sensor.maxRange;
-                        if (fmod(promotedMaxRange, promotedResolution) != 0) {
-                            ALOGW("%s's max range %f is not a multiple of the resolution %f",
-                                    sensor.name, sensor.maxRange, sensor.resolution);
-                            SensorDeviceUtils::quantizeValue(&sensor.maxRange, promotedResolution);
+                        // Some sensors don't have a default resolution and will be left at 0.
+                        // Don't crash in this case since CTS will verify that devices don't go to
+                        // production with a resolution of 0.
+                        if (sensor.resolution != 0) {
+                            double promotedResolution = sensor.resolution;
+                            double promotedMaxRange = sensor.maxRange;
+                            if (fmod(promotedMaxRange, promotedResolution) != 0) {
+                                ALOGW("%s's max range %f is not a multiple of the resolution %f",
+                                        sensor.name, sensor.maxRange, sensor.resolution);
+                                SensorDeviceUtils::quantizeValue(
+                                        &sensor.maxRange, promotedResolution);
+                            }
                         }
                     }
 
diff --git a/services/sensorservice/SensorEventConnection.cpp b/services/sensorservice/SensorEventConnection.cpp
index 9b30dce..b4b5f98 100644
--- a/services/sensorservice/SensorEventConnection.cpp
+++ b/services/sensorservice/SensorEventConnection.cpp
@@ -272,11 +272,16 @@
     }
 }
 
-void SensorService::SensorEventConnection::incrementPendingFlushCount(int32_t handle) {
-    Mutex::Autolock _l(mConnectionLock);
-    if (mSensorInfo.count(handle) > 0) {
-        FlushInfo& flushInfo = mSensorInfo[handle];
-        flushInfo.mPendingFlushEventsToSend++;
+bool SensorService::SensorEventConnection::incrementPendingFlushCountIfHasAccess(int32_t handle) {
+    if (hasSensorAccess()) {
+        Mutex::Autolock _l(mConnectionLock);
+        if (mSensorInfo.count(handle) > 0) {
+            FlushInfo& flushInfo = mSensorInfo[handle];
+            flushInfo.mPendingFlushEventsToSend++;
+        }
+        return true;
+    } else {
+        return false;
     }
 }
 
diff --git a/services/sensorservice/SensorEventConnection.h b/services/sensorservice/SensorEventConnection.h
index 8d5fcf7..8f2d5db 100644
--- a/services/sensorservice/SensorEventConnection.h
+++ b/services/sensorservice/SensorEventConnection.h
@@ -116,8 +116,9 @@
     // for writing send the data from the cache.
     virtual int handleEvent(int fd, int events, void* data);
 
-    // Increment mPendingFlushEventsToSend for the given sensor handle.
-    void incrementPendingFlushCount(int32_t handle);
+    // Increment mPendingFlushEventsToSend for the given handle if the connection has sensor access.
+    // Returns true if this connection does have sensor access.
+    bool incrementPendingFlushCountIfHasAccess(int32_t handle);
 
     // Add or remove the file descriptor associated with the BitTube to the looper. If mDead is set
     // to true or there are no more sensors for this connection, the file descriptor is removed if
diff --git a/services/sensorservice/SensorService.cpp b/services/sensorservice/SensorService.cpp
index 3f88f77..aa0dc92 100644
--- a/services/sensorservice/SensorService.cpp
+++ b/services/sensorservice/SensorService.cpp
@@ -1777,7 +1777,10 @@
         if (halVersion <= SENSORS_DEVICE_API_VERSION_1_0 || isVirtualSensor(handle)) {
             // For older devices just increment pending flush count which will send a trivial
             // flush complete event.
-            connection->incrementPendingFlushCount(handle);
+            if (!connection->incrementPendingFlushCountIfHasAccess(handle)) {
+                ALOGE("flush called on an inaccessible sensor");
+                err = INVALID_OPERATION;
+            }
         } else {
             if (!canAccessSensor(sensor->getSensor(), "Tried flushing", opPackageName)) {
                 err = INVALID_OPERATION;
diff --git a/services/surfaceflinger/BufferLayer.cpp b/services/surfaceflinger/BufferLayer.cpp
index f0b0200..cf60b71 100644
--- a/services/surfaceflinger/BufferLayer.cpp
+++ b/services/surfaceflinger/BufferLayer.cpp
@@ -539,20 +539,6 @@
     return (buffer != 0) && (buffer->getUsage() & GRALLOC_USAGE_PROTECTED);
 }
 
-bool BufferLayer::latchUnsignaledBuffers() {
-    static bool propertyLoaded = false;
-    static bool latch = false;
-    static std::mutex mutex;
-    std::lock_guard<std::mutex> lock(mutex);
-    if (!propertyLoaded) {
-        char value[PROPERTY_VALUE_MAX] = {};
-        property_get("debug.sf.latch_unsignaled", value, "0");
-        latch = atoi(value);
-        propertyLoaded = true;
-    }
-    return latch;
-}
-
 // h/w composer set-up
 bool BufferLayer::allTransactionsSignaled(nsecs_t expectedPresentTime) {
     const auto headFrameNumber = getHeadFrameNumber(expectedPresentTime);
diff --git a/services/surfaceflinger/BufferLayer.h b/services/surfaceflinger/BufferLayer.h
index 26bfb49..2483abb 100644
--- a/services/surfaceflinger/BufferLayer.h
+++ b/services/surfaceflinger/BufferLayer.h
@@ -187,9 +187,6 @@
     bool onPreComposition(nsecs_t) override;
     void preparePerFrameCompositionState() override;
 
-    // Loads the corresponding system property once per process
-    static bool latchUnsignaledBuffers();
-
     // Check all of the local sync points to ensure that all transactions
     // which need to have been applied prior to the frame which is about to
     // be latched have signaled
diff --git a/services/surfaceflinger/BufferQueueLayer.cpp b/services/surfaceflinger/BufferQueueLayer.cpp
index 5f95182..1156f55 100644
--- a/services/surfaceflinger/BufferQueueLayer.cpp
+++ b/services/surfaceflinger/BufferQueueLayer.cpp
@@ -131,10 +131,6 @@
 // -----------------------------------------------------------------------
 
 bool BufferQueueLayer::fenceHasSignaled() const {
-    if (latchUnsignaledBuffers()) {
-        return true;
-    }
-
     if (!hasFrameUpdate()) {
         return true;
     }
diff --git a/services/surfaceflinger/BufferStateLayer.cpp b/services/surfaceflinger/BufferStateLayer.cpp
index 790f2ec..884cc0c 100644
--- a/services/surfaceflinger/BufferStateLayer.cpp
+++ b/services/surfaceflinger/BufferStateLayer.cpp
@@ -422,10 +422,6 @@
 // Interface implementation for BufferLayer
 // -----------------------------------------------------------------------
 bool BufferStateLayer::fenceHasSignaled() const {
-    if (latchUnsignaledBuffers()) {
-        return true;
-    }
-
     const bool fenceSignaled =
             getDrawingState().acquireFence->getStatus() == Fence::Status::Signaled;
     if (!fenceSignaled) {
diff --git a/services/surfaceflinger/FrameTracer/OWNERS b/services/surfaceflinger/FrameTracer/OWNERS
new file mode 100644
index 0000000..e4f5d45
--- /dev/null
+++ b/services/surfaceflinger/FrameTracer/OWNERS
@@ -0,0 +1 @@
+adsrini@google.com
diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index 25ae001..8cfb908 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -1820,7 +1820,7 @@
         onRemovedFromCurrentState();
     }
 
-    if (callSetTransactionFlags || attachChildren()) {
+    if (attachChildren() || callSetTransactionFlags) {
         setTransactionFlags(eTransactionNeeded);
     }
     return true;
@@ -1848,9 +1848,9 @@
         if (client != nullptr && parentClient != client) {
             if (child->mLayerDetached) {
                 child->mLayerDetached = false;
+                child->attachChildren();
                 changed = true;
             }
-            changed |= child->attachChildren();
         }
     }
 
diff --git a/services/surfaceflinger/Scheduler/RefreshRateConfigs.cpp b/services/surfaceflinger/Scheduler/RefreshRateConfigs.cpp
index 053d0a7..8661b6e 100644
--- a/services/surfaceflinger/Scheduler/RefreshRateConfigs.cpp
+++ b/services/surfaceflinger/Scheduler/RefreshRateConfigs.cpp
@@ -212,10 +212,8 @@
             bool inPrimaryRange =
                     scores[i].first->inPolicy(policy->primaryRange.min, policy->primaryRange.max);
             if ((primaryRangeIsSingleRate || !inPrimaryRange) &&
-                !(layer.focused &&
-                  (layer.vote == LayerVoteType::ExplicitDefault ||
-                   layer.vote == LayerVoteType::ExplicitExactOrMultiple))) {
-                // Only focused layers with explicit frame rate settings are allowed to score
+                !(layer.focused && layer.vote == LayerVoteType::ExplicitDefault)) {
+                // Only focused layers with ExplicitDefault frame rate settings are allowed to score
                 // refresh rates outside the primary range.
                 continue;
             }
diff --git a/services/surfaceflinger/Scheduler/VSyncPredictor.cpp b/services/surfaceflinger/Scheduler/VSyncPredictor.cpp
index ab5773d..61f3fbb 100644
--- a/services/surfaceflinger/Scheduler/VSyncPredictor.cpp
+++ b/services/surfaceflinger/Scheduler/VSyncPredictor.cpp
@@ -255,21 +255,9 @@
     }
 }
 
-bool VSyncPredictor::needsMoreSamples(nsecs_t now) const {
-    using namespace std::literals::chrono_literals;
+bool VSyncPredictor::needsMoreSamples() const {
     std::lock_guard<std::mutex> lk(mMutex);
-    bool needsMoreSamples = true;
-    if (mTimestamps.size() >= kMinimumSamplesForPrediction) {
-        nsecs_t constexpr aLongTime =
-                std::chrono::duration_cast<std::chrono::nanoseconds>(500ms).count();
-        if (!(mLastTimestampIndex < 0 || mTimestamps.empty())) {
-            auto const lastTimestamp = mTimestamps[mLastTimestampIndex];
-            needsMoreSamples = !((lastTimestamp + aLongTime) > now);
-        }
-    }
-
-    ATRACE_INT("VSP-moreSamples", needsMoreSamples);
-    return needsMoreSamples;
+    return mTimestamps.size() < kMinimumSamplesForPrediction;
 }
 
 void VSyncPredictor::resetModel() {
diff --git a/services/surfaceflinger/Scheduler/VSyncPredictor.h b/services/surfaceflinger/Scheduler/VSyncPredictor.h
index 3ca878d..5f3c418 100644
--- a/services/surfaceflinger/Scheduler/VSyncPredictor.h
+++ b/services/surfaceflinger/Scheduler/VSyncPredictor.h
@@ -52,11 +52,10 @@
      */
     void setPeriod(nsecs_t period) final;
 
-    /* Query if the model is in need of more samples to make a prediction at timePoint.
-     * \param [in] timePoint    The timePoint to inquire of.
+    /* Query if the model is in need of more samples to make a prediction.
      * \return  True, if model would benefit from more samples, False if not.
      */
-    bool needsMoreSamples(nsecs_t timePoint) const;
+    bool needsMoreSamples() const final;
 
     std::tuple<nsecs_t /* slope */, nsecs_t /* intercept */> getVSyncPredictionModel() const;
 
diff --git a/services/surfaceflinger/Scheduler/VSyncReactor.cpp b/services/surfaceflinger/Scheduler/VSyncReactor.cpp
index c743de0..efa8bab 100644
--- a/services/surfaceflinger/Scheduler/VSyncReactor.cpp
+++ b/services/surfaceflinger/Scheduler/VSyncReactor.cpp
@@ -233,6 +233,7 @@
 }
 
 void VSyncReactor::startPeriodTransition(nsecs_t newPeriod) {
+    ATRACE_CALL();
     mPeriodConfirmationInProgress = true;
     mPeriodTransitioningTo = newPeriod;
     mMoreSamplesNeeded = true;
@@ -240,8 +241,7 @@
 }
 
 void VSyncReactor::endPeriodTransition() {
-    setIgnorePresentFencesInternal(false);
-    mMoreSamplesNeeded = false;
+    ATRACE_CALL();
     mPeriodTransitioningTo.reset();
     mPeriodConfirmationInProgress = false;
     mLastHwVsync.reset();
@@ -254,6 +254,8 @@
 
     if (!mSupportKernelIdleTimer && period == getPeriod()) {
         endPeriodTransition();
+        setIgnorePresentFencesInternal(false);
+        mMoreSamplesNeeded = false;
     } else {
         startPeriodTransition(period);
     }
@@ -303,6 +305,7 @@
 
     std::lock_guard<std::mutex> lk(mMutex);
     if (periodConfirmed(timestamp, hwcVsyncPeriod)) {
+        ATRACE_NAME("VSR: period confirmed");
         if (mPeriodTransitioningTo) {
             mTracker->setPeriod(*mPeriodTransitioningTo);
             for (auto& entry : mCallbacks) {
@@ -310,17 +313,29 @@
             }
             *periodFlushed = true;
         }
+
+        if (mLastHwVsync) {
+            mTracker->addVsyncTimestamp(*mLastHwVsync);
+        }
+        mTracker->addVsyncTimestamp(timestamp);
+
         endPeriodTransition();
+        mMoreSamplesNeeded = mTracker->needsMoreSamples();
     } else if (mPeriodConfirmationInProgress) {
+        ATRACE_NAME("VSR: still confirming period");
         mLastHwVsync = timestamp;
         mMoreSamplesNeeded = true;
         *periodFlushed = false;
     } else {
-        mMoreSamplesNeeded = false;
+        ATRACE_NAME("VSR: adding sample");
         *periodFlushed = false;
+        mTracker->addVsyncTimestamp(timestamp);
+        mMoreSamplesNeeded = mTracker->needsMoreSamples();
     }
 
-    mTracker->addVsyncTimestamp(timestamp);
+    if (!mMoreSamplesNeeded) {
+        setIgnorePresentFencesInternal(false);
+    }
     return mMoreSamplesNeeded;
 }
 
diff --git a/services/surfaceflinger/Scheduler/VSyncTracker.h b/services/surfaceflinger/Scheduler/VSyncTracker.h
index 05a6fc3..107c540 100644
--- a/services/surfaceflinger/Scheduler/VSyncTracker.h
+++ b/services/surfaceflinger/Scheduler/VSyncTracker.h
@@ -66,6 +66,8 @@
     /* Inform the tracker that the samples it has are not accurate for prediction. */
     virtual void resetModel() = 0;
 
+    virtual bool needsMoreSamples() const = 0;
+
     virtual void dump(std::string& result) const = 0;
 
 protected:
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index db6f1ad..aa7b903 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -30,6 +30,8 @@
 #include <android/hardware/configstore/1.1/types.h>
 #include <android/hardware/power/Boost.h>
 #include <android/native_window.h>
+#include <android/os/BnSetInputWindowsListener.h>
+#include <android/os/IInputFlinger.h>
 #include <binder/IPCThreadState.h>
 #include <binder/IServiceManager.h>
 #include <binder/PermissionCache.h>
@@ -57,7 +59,7 @@
 #include <gui/LayerMetadata.h>
 #include <gui/LayerState.h>
 #include <gui/Surface.h>
-#include <input/IInputFlinger.h>
+#include <hidl/ServiceManagement.h>
 #include <layerproto/LayerProtoParser.h>
 #include <log/log.h>
 #include <private/android_filesystem_config.h>
@@ -255,6 +257,21 @@
 
 }  // namespace anonymous
 
+struct SetInputWindowsListener : os::BnSetInputWindowsListener {
+    explicit SetInputWindowsListener(std::function<void()> listenerCb) : mListenerCb(listenerCb) {}
+
+    binder::Status onSetInputWindowsFinished() override;
+
+    std::function<void()> mListenerCb;
+};
+
+binder::Status SetInputWindowsListener::onSetInputWindowsFinished() {
+    if (mListenerCb != nullptr) {
+        mListenerCb();
+    }
+    return binder::Status::ok();
+}
+
 // ---------------------------------------------------------------------------
 
 const String16 sHardwareTest("android.permission.HARDWARE_TEST");
@@ -320,7 +337,9 @@
         mEventQueue(mFactory.createMessageQueue()),
         mCompositionEngine(mFactory.createCompositionEngine()),
         mInternalDisplayDensity(getDensityFromProperty("ro.sf.lcd_density", true)),
-        mEmulatedDisplayDensity(getDensityFromProperty("qemu.sf.lcd_density", false)) {}
+        mEmulatedDisplayDensity(getDensityFromProperty("qemu.sf.lcd_density", false)) {
+    mSetInputWindowsListener = new SetInputWindowsListener([&]() { setInputWindowsFinished(); });
+}
 
 SurfaceFlinger::SurfaceFlinger(Factory& factory) : SurfaceFlinger(factory, SkipInitialization) {
     ALOGI("SurfaceFlinger is starting");
@@ -398,10 +417,6 @@
     int debugDdms = atoi(value);
     ALOGI_IF(debugDdms, "DDMS debugging not supported");
 
-    property_get("debug.sf.disable_backpressure", value, "0");
-    mPropagateBackpressure = !atoi(value);
-    ALOGI_IF(!mPropagateBackpressure, "Disabling backpressure propagation");
-
     property_get("debug.sf.enable_gl_backpressure", value, "0");
     mPropagateBackpressureClientComposition = atoi(value);
     ALOGI_IF(mPropagateBackpressureClientComposition,
@@ -447,7 +462,7 @@
         // deriving the setting from the set service name, but it
         // would be brittle if the name that's not 'default' is used
         // for production purposes later on.
-        setenv("TREBLE_TESTING_OVERRIDE", "true", true);
+        android::hardware::details::setTrebleTestingOverride(true);
     }
 
     useFrameRateApi = use_frame_rate_api(true);
@@ -606,13 +621,6 @@
     if (mWindowManager != 0) {
         mWindowManager->linkToDeath(static_cast<IBinder::DeathRecipient*>(this));
     }
-    sp<IBinder> input(defaultServiceManager()->getService(
-            String16("inputflinger")));
-    if (input == nullptr) {
-        ALOGE("Failed to link to input service");
-    } else {
-        mInputFlinger = interface_cast<IInputFlinger>(input);
-    }
 
     if (mVrFlinger) {
       mVrFlinger->OnBootFinished();
@@ -627,7 +635,15 @@
     LOG_EVENT_LONG(LOGTAG_SF_STOP_BOOTANIM,
                    ns2ms(systemTime(SYSTEM_TIME_MONOTONIC)));
 
-    static_cast<void>(schedule([this] {
+    sp<IBinder> input(defaultServiceManager()->getService(String16("inputflinger")));
+
+    static_cast<void>(schedule([=] {
+        if (input == nullptr) {
+            ALOGE("Failed to link to input service");
+        } else {
+            mInputFlinger = interface_cast<os::IInputFlinger>(input);
+        }
+
         readPersistentProperties();
         mPowerAdvisor.onBootFinished();
         mBootStage = BootStage::FINISHED;
@@ -1841,10 +1857,7 @@
     // for the present fence to fire instead of just giving up on this frame to handle cases
     // where present fence is just about to get signaled.
     const int graceTimeForPresentFenceMs =
-            (mPropagateBackpressure &&
-             (mPropagateBackpressureClientComposition || !mHadClientComposition))
-            ? 1
-            : 0;
+            (mPropagateBackpressureClientComposition || !mHadClientComposition) ? 1 : 0;
 
     // Pending frames may trigger backpressure propagation.
     const TracedOrdinal<bool> framePending = {"PrevFramePending",
@@ -1903,7 +1916,7 @@
         ON_MAIN_THREAD(setActiveConfigInternal());
     }
 
-    if (framePending && mPropagateBackpressure) {
+    if (framePending) {
         if ((hwcFrameMissed && !gpuFrameMissed) || mPropagateBackpressureClientComposition) {
             signalLayerUpdate();
             return;
@@ -2103,7 +2116,8 @@
         mTimeStats->incrementCompositionStrategyChanges();
     }
 
-    mVSyncModulator->onRefreshed(mHadClientComposition);
+    // TODO: b/160583065 Enable skip validation when SF caches all client composition layers
+    mVSyncModulator->onRefreshed(mHadClientComposition || mReusedClientComposition);
 
     mLayersWithQueuedFrames.clear();
     if (mVisibleRegionsDirty) {
@@ -2896,19 +2910,19 @@
 }
 
 void SurfaceFlinger::updateInputWindowInfo() {
-    std::vector<InputWindowInfo> inputHandles;
+    std::vector<InputWindowInfo> inputInfos;
 
     mDrawingState.traverseInReverseZOrder([&](Layer* layer) {
         if (layer->needsInputInfo()) {
             // When calculating the screen bounds we ignore the transparent region since it may
             // result in an unwanted offset.
-            inputHandles.push_back(layer->fillInputInfo());
+            inputInfos.push_back(layer->fillInputInfo());
         }
     });
 
-    mInputFlinger->setInputWindows(inputHandles,
-                                   mInputWindowCommands.syncInputWindows ? mSetInputWindowsListener
-                                                                         : nullptr);
+    mInputFlinger->setInputWindows(inputInfos,
+                               mInputWindowCommands.syncInputWindows ? mSetInputWindowsListener
+                                                                     : nullptr);
 }
 
 void SurfaceFlinger::commitInputWindowCommands() {
@@ -3811,7 +3825,7 @@
     }
     if (what & layer_state_t::eInputInfoChanged) {
         if (privileged) {
-            layer->setInputInfo(s.inputInfo);
+            layer->setInputInfo(*s.inputHandle->getInfo());
             flags |= eTraversalNeeded;
         } else {
             ALOGE("Attempt to update InputWindowInfo without permission ACCESS_SURFACE_FLINGER");
@@ -6063,10 +6077,6 @@
     }
 }
 
-void SurfaceFlinger::SetInputWindowsListener::onSetInputWindowsFinished() {
-    mFlinger->setInputWindowsFinished();
-}
-
 wp<Layer> SurfaceFlinger::fromHandle(const sp<IBinder>& handle) {
     Mutex::Autolock _l(mStateLock);
     return fromHandleLocked(handle);
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index e9a2905..7ab0729 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -33,7 +33,6 @@
 #include <gui/ITransactionCompletedListener.h>
 #include <gui/LayerState.h>
 #include <gui/OccupancyTracker.h>
-#include <input/ISetInputWindowsListener.h>
 #include <layerproto/LayerProtoHeader.h>
 #include <math/mat4.h>
 #include <renderengine/LayerSettings.h>
@@ -89,8 +88,8 @@
 class Client;
 class EventThread;
 class HWComposer;
+struct SetInputWindowsListener;
 class IGraphicBufferProducer;
-class IInputFlinger;
 class Layer;
 class MessageBase;
 class RefreshRateOverlay;
@@ -99,6 +98,10 @@
 class TimeStats;
 class FrameTracer;
 
+namespace os {
+    class IInputFlinger;
+}
+
 namespace compositionengine {
 class DisplaySurface;
 class OutputLayer;
@@ -336,6 +339,7 @@
     // If set, disables reusing client composition buffers. This can be set by
     // debug.sf.disable_client_composition_cache
     bool mDisableClientCompositionCache = false;
+    void setInputWindowsFinished();
 
 private:
     friend class BufferLayer;
@@ -606,7 +610,6 @@
     void updateInputFlinger();
     void updateInputWindowInfo();
     void commitInputWindowCommands() REQUIRES(mStateLock);
-    void setInputWindowsFinished();
     void updateCursorAsync();
     void initScheduler(DisplayId primaryDisplayId);
 
@@ -1083,7 +1086,6 @@
     bool mDebugDisableTransformHint = false;
     volatile nsecs_t mDebugInTransaction = 0;
     bool mForceFullDamage = false;
-    bool mPropagateBackpressure = true;
     bool mPropagateBackpressureClientComposition = false;
     std::unique_ptr<SurfaceInterceptor> mInterceptor;
 
@@ -1255,21 +1257,12 @@
     const float mInternalDisplayDensity;
     const float mEmulatedDisplayDensity;
 
-    sp<IInputFlinger> mInputFlinger;
+    sp<os::IInputFlinger> mInputFlinger;
     InputWindowCommands mPendingInputWindowCommands GUARDED_BY(mStateLock);
     // Should only be accessed by the main thread.
     InputWindowCommands mInputWindowCommands;
 
-    struct SetInputWindowsListener : BnSetInputWindowsListener {
-        explicit SetInputWindowsListener(sp<SurfaceFlinger> flinger)
-              : mFlinger(std::move(flinger)) {}
-
-        void onSetInputWindowsFinished() override;
-
-        const sp<SurfaceFlinger> mFlinger;
-    };
-
-    const sp<SetInputWindowsListener> mSetInputWindowsListener = new SetInputWindowsListener(this);
+    sp<SetInputWindowsListener> mSetInputWindowsListener;
 
     bool mPendingSyncInputWindows GUARDED_BY(mStateLock) = false;
     Hwc2::impl::PowerAdvisor mPowerAdvisor;
diff --git a/services/surfaceflinger/tests/Android.bp b/services/surfaceflinger/tests/Android.bp
index fe2af80..c96dfc7 100644
--- a/services/surfaceflinger/tests/Android.bp
+++ b/services/surfaceflinger/tests/Android.bp
@@ -21,6 +21,7 @@
         "CommonTypes_test.cpp",
         "Credentials_test.cpp",
         "DereferenceSurfaceControl_test.cpp",
+        "DetachChildren_test.cpp",
         "DisplayConfigs_test.cpp",
         "EffectLayer_test.cpp",
         "InvalidHandles_test.cpp",
diff --git a/services/surfaceflinger/tests/DetachChildren_test.cpp b/services/surfaceflinger/tests/DetachChildren_test.cpp
new file mode 100644
index 0000000..b6c2fe2
--- /dev/null
+++ b/services/surfaceflinger/tests/DetachChildren_test.cpp
@@ -0,0 +1,322 @@
+/*
+ * Copyright (C) 2020 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.
+ */
+
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wconversion"
+
+#include "LayerTransactionTest.h"
+
+namespace android {
+
+class DetachChildren : public LayerTransactionTest {
+protected:
+    virtual void SetUp() {
+        LayerTransactionTest::SetUp();
+
+        mMainSurface = createLayer(String8("Main Test Surface"), mMainSurfaceBounds.width(),
+                                   mMainSurfaceBounds.height(), 0, mBlackBgSurface.get());
+
+        ASSERT_TRUE(mMainSurface != nullptr);
+        ASSERT_TRUE(mMainSurface->isValid());
+
+        TransactionUtils::fillSurfaceRGBA8(mMainSurface, mMainSurfaceColor);
+
+        asTransaction([&](Transaction& t) {
+            t.setLayer(mMainSurface, INT32_MAX - 1)
+                    .setPosition(mMainSurface, mMainSurfaceBounds.left, mMainSurfaceBounds.top)
+                    .show(mMainSurface);
+        });
+    }
+
+    virtual void TearDown() {
+        LayerTransactionTest::TearDown();
+        mMainSurface = 0;
+    }
+
+    sp<SurfaceControl> mMainSurface;
+    Color mMainSurfaceColor = {195, 63, 63, 255};
+    Rect mMainSurfaceBounds = Rect(64, 64, 128, 128);
+    std::unique_ptr<ScreenCapture> mCapture;
+};
+
+TEST_F(DetachChildren, RelativesAreNotDetached) {
+    Color relativeColor = {10, 10, 10, 255};
+    Rect relBounds = Rect(64, 64, 74, 74);
+
+    sp<SurfaceControl> relative =
+            createLayer(String8("relativeTestSurface"), relBounds.width(), relBounds.height(), 0);
+    TransactionUtils::fillSurfaceRGBA8(relative, relativeColor);
+
+    Transaction{}
+            .setRelativeLayer(relative, mMainSurface->getHandle(), 1)
+            .setPosition(relative, relBounds.left, relBounds.top)
+            .apply();
+
+    {
+        // The relative should be on top of the FG control.
+        mCapture = screenshot();
+        mCapture->expectColor(relBounds, relativeColor);
+    }
+    Transaction{}.detachChildren(mMainSurface).apply();
+
+    {
+        // Nothing should change at this point.
+        mCapture = screenshot();
+        mCapture->expectColor(relBounds, relativeColor);
+    }
+
+    Transaction{}.hide(relative).apply();
+
+    {
+        // Ensure that the relative was actually hidden, rather than
+        // being left in the detached but visible state.
+        mCapture = screenshot();
+        mCapture->expectColor(mMainSurfaceBounds, mMainSurfaceColor);
+    }
+}
+
+TEST_F(DetachChildren, DetachChildrenSameClient) {
+    Color childColor = {200, 200, 200, 255};
+    Rect childBounds = Rect(74, 74, 84, 84);
+    sp<SurfaceControl> child = createLayer(String8("Child surface"), childBounds.width(),
+                                           childBounds.height(), 0, mMainSurface.get());
+    ASSERT_TRUE(child->isValid());
+
+    TransactionUtils::fillSurfaceRGBA8(child, childColor);
+
+    asTransaction([&](Transaction& t) {
+        t.show(child);
+        t.setPosition(child, childBounds.left - mMainSurfaceBounds.left,
+                      childBounds.top - mMainSurfaceBounds.top);
+    });
+
+    {
+        mCapture = screenshot();
+        // Expect main color around the child surface
+        mCapture->expectBorder(childBounds, mMainSurfaceColor);
+        mCapture->expectColor(childBounds, childColor);
+    }
+
+    asTransaction([&](Transaction& t) { t.detachChildren(mMainSurface); });
+
+    asTransaction([&](Transaction& t) { t.hide(child); });
+
+    // Since the child has the same client as the parent, it will not get
+    // detached and will be hidden.
+    {
+        mCapture = screenshot();
+        mCapture->expectColor(mMainSurfaceBounds, mMainSurfaceColor);
+    }
+}
+
+TEST_F(DetachChildren, DetachChildrenDifferentClient) {
+    Color childColor = {200, 200, 200, 255};
+    Rect childBounds = Rect(74, 74, 84, 84);
+
+    sp<SurfaceComposerClient> newComposerClient = new SurfaceComposerClient;
+    sp<SurfaceControl> childNewClient =
+            createSurface(newComposerClient, "New Child Test Surface", childBounds.width(),
+                          childBounds.height(), PIXEL_FORMAT_RGBA_8888, 0, mMainSurface.get());
+    ASSERT_TRUE(childNewClient->isValid());
+
+    TransactionUtils::fillSurfaceRGBA8(childNewClient, childColor);
+
+    asTransaction([&](Transaction& t) {
+        t.show(childNewClient);
+        t.setPosition(childNewClient, childBounds.left - mMainSurfaceBounds.left,
+                      childBounds.top - mMainSurfaceBounds.top);
+    });
+
+    {
+        mCapture = screenshot();
+        // Expect main color around the child surface
+        mCapture->expectBorder(childBounds, mMainSurfaceColor);
+        mCapture->expectColor(childBounds, childColor);
+    }
+
+    asTransaction([&](Transaction& t) { t.detachChildren(mMainSurface); });
+
+    asTransaction([&](Transaction& t) { t.hide(childNewClient); });
+
+    // Nothing should have changed.
+    {
+        mCapture = screenshot();
+        mCapture->expectBorder(childBounds, mMainSurfaceColor);
+        mCapture->expectColor(childBounds, childColor);
+    }
+}
+
+TEST_F(DetachChildren, DetachChildrenThenAttach) {
+    Color childColor = {200, 200, 200, 255};
+    Rect childBounds = Rect(74, 74, 84, 84);
+
+    sp<SurfaceComposerClient> newComposerClient = new SurfaceComposerClient;
+    sp<SurfaceControl> childNewClient =
+            createSurface(newComposerClient, "New Child Test Surface", childBounds.width(),
+                          childBounds.height(), PIXEL_FORMAT_RGBA_8888, 0, mMainSurface.get());
+    ASSERT_TRUE(childNewClient->isValid());
+
+    TransactionUtils::fillSurfaceRGBA8(childNewClient, childColor);
+
+    Transaction()
+            .show(childNewClient)
+            .setPosition(childNewClient, childBounds.left - mMainSurfaceBounds.left,
+                         childBounds.top - mMainSurfaceBounds.top)
+            .apply();
+
+    {
+        mCapture = screenshot();
+        // Expect main color around the child surface
+        mCapture->expectBorder(childBounds, mMainSurfaceColor);
+        mCapture->expectColor(childBounds, childColor);
+    }
+
+    Transaction().detachChildren(mMainSurface).apply();
+    Transaction().hide(childNewClient).apply();
+
+    // Nothing should have changed.
+    {
+        mCapture = screenshot();
+        mCapture->expectBorder(childBounds, mMainSurfaceColor);
+        mCapture->expectColor(childBounds, childColor);
+    }
+
+    Color newParentColor = Color::RED;
+    Rect newParentBounds = Rect(20, 20, 52, 52);
+    sp<SurfaceControl> newParentSurface =
+            createLayer(String8("New Parent Surface"), newParentBounds.width(),
+                        newParentBounds.height(), 0);
+    TransactionUtils::fillSurfaceRGBA8(newParentSurface, newParentColor);
+    Transaction()
+            .setLayer(newParentSurface, INT32_MAX - 1)
+            .show(newParentSurface)
+            .setPosition(newParentSurface, newParentBounds.left, newParentBounds.top)
+            .reparent(childNewClient, newParentSurface->getHandle())
+            .apply();
+    {
+        mCapture = screenshot();
+        // Child is now hidden.
+        mCapture->expectColor(newParentBounds, newParentColor);
+    }
+}
+
+TEST_F(DetachChildren, DetachChildrenWithDeferredTransaction) {
+    Color childColor = {200, 200, 200, 255};
+    Rect childBounds = Rect(74, 74, 84, 84);
+
+    sp<SurfaceComposerClient> newComposerClient = new SurfaceComposerClient;
+    sp<SurfaceControl> childNewClient =
+            createSurface(newComposerClient, "New Child Test Surface", childBounds.width(),
+                          childBounds.height(), PIXEL_FORMAT_RGBA_8888, 0, mMainSurface.get());
+    ASSERT_TRUE(childNewClient->isValid());
+
+    TransactionUtils::fillSurfaceRGBA8(childNewClient, childColor);
+
+    Transaction()
+            .show(childNewClient)
+            .setPosition(childNewClient, childBounds.left - mMainSurfaceBounds.left,
+                         childBounds.top - mMainSurfaceBounds.top)
+            .apply();
+
+    {
+        mCapture = screenshot();
+        mCapture->expectBorder(childBounds, mMainSurfaceColor);
+        mCapture->expectColor(childBounds, childColor);
+    }
+
+    Transaction()
+            .deferTransactionUntil_legacy(childNewClient, mMainSurface->getHandle(),
+                                          mMainSurface->getSurface()->getNextFrameNumber())
+            .apply();
+    Transaction().detachChildren(mMainSurface).apply();
+    ASSERT_NO_FATAL_FAILURE(fillBufferQueueLayerColor(mMainSurface, Color::RED,
+                                                      mMainSurfaceBounds.width(),
+                                                      mMainSurfaceBounds.height()));
+
+    // BufferLayer can still dequeue buffers even though there's a detached layer with a
+    // deferred transaction.
+    {
+        SCOPED_TRACE("new buffer");
+        mCapture = screenshot();
+        mCapture->expectBorder(childBounds, Color::RED);
+        mCapture->expectColor(childBounds, childColor);
+    }
+}
+
+TEST_F(DetachChildren, ReparentParentLayerOfDetachedChildren) {
+    Color childColor = {200, 200, 200, 255};
+    Rect childBounds = Rect(74, 74, 94, 94);
+    Color grandchildColor = Color::RED;
+    Rect grandchildBounds = Rect(80, 80, 90, 90);
+
+    sp<SurfaceComposerClient> newClient1 = new SurfaceComposerClient;
+    sp<SurfaceComposerClient> newClient2 = new SurfaceComposerClient;
+
+    sp<SurfaceControl> childSurface =
+            createSurface(newClient1, "Child surface", childBounds.width(), childBounds.height(),
+                          PIXEL_FORMAT_RGBA_8888, 0, mMainSurface.get());
+    sp<SurfaceControl> grandchildSurface =
+            createSurface(newClient2, "Grandchild Surface", grandchildBounds.width(),
+                          grandchildBounds.height(), PIXEL_FORMAT_RGBA_8888, 0, childSurface.get());
+
+    TransactionUtils::fillSurfaceRGBA8(childSurface, childColor);
+    TransactionUtils::fillSurfaceRGBA8(grandchildSurface, grandchildColor);
+
+    Transaction()
+            .show(childSurface)
+            .show(grandchildSurface)
+            .setPosition(childSurface, childBounds.left - mMainSurfaceBounds.left,
+                         childBounds.top - mMainSurfaceBounds.top)
+            .setPosition(grandchildSurface, grandchildBounds.left - childBounds.left,
+                         grandchildBounds.top - childBounds.top)
+            .apply();
+
+    {
+        mCapture = screenshot();
+        mCapture->expectBorder(childBounds, mMainSurfaceColor);
+        mCapture->expectBorder(grandchildBounds, childColor);
+        mCapture->expectColor(grandchildBounds, grandchildColor);
+    }
+
+    Transaction().detachChildren(childSurface).apply();
+
+    // Remove main surface offscreen
+    Transaction().reparent(mMainSurface, nullptr).apply();
+    {
+        mCapture = screenshot();
+        mCapture->expectColor(mMainSurfaceBounds, Color::BLACK);
+    }
+
+    Transaction().reparent(mMainSurface, mBlackBgSurface->getHandle()).apply();
+    {
+        mCapture = screenshot();
+        mCapture->expectBorder(childBounds, mMainSurfaceColor);
+        mCapture->expectBorder(grandchildBounds, childColor);
+        mCapture->expectColor(grandchildBounds, grandchildColor);
+    }
+
+    Transaction().hide(grandchildSurface).apply();
+
+    // grandchild is still detached so it will not hide
+    {
+        mCapture = screenshot();
+        mCapture->expectBorder(childBounds, mMainSurfaceColor);
+        mCapture->expectBorder(grandchildBounds, childColor);
+        mCapture->expectColor(grandchildBounds, grandchildColor);
+    }
+}
+
+} // namespace android
\ No newline at end of file
diff --git a/services/surfaceflinger/tests/LayerUpdate_test.cpp b/services/surfaceflinger/tests/LayerUpdate_test.cpp
index cdd9d92..84823f5 100644
--- a/services/surfaceflinger/tests/LayerUpdate_test.cpp
+++ b/services/surfaceflinger/tests/LayerUpdate_test.cpp
@@ -103,41 +103,6 @@
     sp<SurfaceControl> mSyncSurfaceControl;
 };
 
-TEST_F(LayerUpdateTest, RelativesAreNotDetached) {
-    std::unique_ptr<ScreenCapture> sc;
-
-    sp<SurfaceControl> relative = createLayer(String8("relativeTestSurface"), 10, 10, 0);
-    TransactionUtils::fillSurfaceRGBA8(relative, 10, 10, 10);
-    waitForPostedBuffers();
-
-    Transaction{}
-            .setRelativeLayer(relative, mFGSurfaceControl->getHandle(), 1)
-            .setPosition(relative, 64, 64)
-            .apply();
-
-    {
-        // The relative should be on top of the FG control.
-        ScreenCapture::captureScreen(&sc);
-        sc->checkPixel(64, 64, 10, 10, 10);
-    }
-    Transaction{}.detachChildren(mFGSurfaceControl).apply();
-
-    {
-        // Nothing should change at this point.
-        ScreenCapture::captureScreen(&sc);
-        sc->checkPixel(64, 64, 10, 10, 10);
-    }
-
-    Transaction{}.hide(relative).apply();
-
-    {
-        // Ensure that the relative was actually hidden, rather than
-        // being left in the detached but visible state.
-        ScreenCapture::captureScreen(&sc);
-        sc->expectFGColor(64, 64);
-    }
-}
-
 class GeometryLatchingTest : public LayerUpdateTest {
 protected:
     void EXPECT_INITIAL_STATE(const char* trace) {
@@ -588,174 +553,6 @@
     }
 }
 
-TEST_F(ChildLayerTest, DetachChildrenSameClient) {
-    asTransaction([&](Transaction& t) {
-        t.show(mChild);
-        t.setPosition(mChild, 10, 10);
-        t.setPosition(mFGSurfaceControl, 64, 64);
-    });
-
-    {
-        mCapture = screenshot();
-        // Top left of foreground must now be visible
-        mCapture->expectFGColor(64, 64);
-        // But 10 pixels in we should see the child surface
-        mCapture->expectChildColor(74, 74);
-        // And 10 more pixels we should be back to the foreground surface
-        mCapture->expectFGColor(84, 84);
-    }
-
-    asTransaction([&](Transaction& t) { t.detachChildren(mFGSurfaceControl); });
-
-    asTransaction([&](Transaction& t) { t.hide(mChild); });
-
-    // Since the child has the same client as the parent, it will not get
-    // detached and will be hidden.
-    {
-        mCapture = screenshot();
-        mCapture->expectFGColor(64, 64);
-        mCapture->expectFGColor(74, 74);
-        mCapture->expectFGColor(84, 84);
-    }
-}
-
-TEST_F(ChildLayerTest, DetachChildrenDifferentClient) {
-    sp<SurfaceComposerClient> mNewComposerClient = new SurfaceComposerClient;
-    sp<SurfaceControl> mChildNewClient =
-            createSurface(mNewComposerClient, "New Child Test Surface", 10, 10,
-                          PIXEL_FORMAT_RGBA_8888, 0, mFGSurfaceControl.get());
-
-    ASSERT_TRUE(mChildNewClient->isValid());
-
-    TransactionUtils::fillSurfaceRGBA8(mChildNewClient, 200, 200, 200);
-
-    asTransaction([&](Transaction& t) {
-        t.hide(mChild);
-        t.show(mChildNewClient);
-        t.setPosition(mChildNewClient, 10, 10);
-        t.setPosition(mFGSurfaceControl, 64, 64);
-    });
-
-    {
-        mCapture = screenshot();
-        // Top left of foreground must now be visible
-        mCapture->expectFGColor(64, 64);
-        // But 10 pixels in we should see the child surface
-        mCapture->expectChildColor(74, 74);
-        // And 10 more pixels we should be back to the foreground surface
-        mCapture->expectFGColor(84, 84);
-    }
-
-    asTransaction([&](Transaction& t) { t.detachChildren(mFGSurfaceControl); });
-
-    asTransaction([&](Transaction& t) { t.hide(mChildNewClient); });
-
-    // Nothing should have changed.
-    {
-        mCapture = screenshot();
-        mCapture->expectFGColor(64, 64);
-        mCapture->expectChildColor(74, 74);
-        mCapture->expectFGColor(84, 84);
-    }
-}
-
-TEST_F(ChildLayerTest, DetachChildrenThenAttach) {
-    sp<SurfaceComposerClient> newComposerClient = new SurfaceComposerClient;
-    sp<SurfaceControl> childNewClient =
-            newComposerClient->createSurface(String8("New Child Test Surface"), 10, 10,
-                                             PIXEL_FORMAT_RGBA_8888, 0, mFGSurfaceControl.get());
-
-    ASSERT_TRUE(childNewClient != nullptr);
-    ASSERT_TRUE(childNewClient->isValid());
-
-    TransactionUtils::fillSurfaceRGBA8(childNewClient, 200, 200, 200);
-
-    Transaction()
-            .hide(mChild)
-            .show(childNewClient)
-            .setPosition(childNewClient, 10, 10)
-            .setPosition(mFGSurfaceControl, 64, 64)
-            .apply();
-
-    {
-        mCapture = screenshot();
-        // Top left of foreground must now be visible
-        mCapture->expectFGColor(64, 64);
-        // But 10 pixels in we should see the child surface
-        mCapture->expectChildColor(74, 74);
-        // And 10 more pixels we should be back to the foreground surface
-        mCapture->expectFGColor(84, 84);
-    }
-
-    Transaction().detachChildren(mFGSurfaceControl).apply();
-    Transaction().hide(childNewClient).apply();
-
-    // Nothing should have changed.
-    {
-        mCapture = screenshot();
-        mCapture->expectFGColor(64, 64);
-        mCapture->expectChildColor(74, 74);
-        mCapture->expectFGColor(84, 84);
-    }
-
-    sp<SurfaceControl> newParentSurface = createLayer(String8("New Parent Surface"), 32, 32, 0);
-    fillLayerColor(ISurfaceComposerClient::eFXSurfaceBufferQueue, newParentSurface, Color::RED, 32,
-                   32);
-    Transaction()
-            .setLayer(newParentSurface, INT32_MAX - 1)
-            .show(newParentSurface)
-            .setPosition(newParentSurface, 20, 20)
-            .reparent(childNewClient, newParentSurface->getHandle())
-            .apply();
-    {
-        mCapture = screenshot();
-        // Child is now hidden.
-        mCapture->expectColor(Rect(20, 20, 52, 52), Color::RED);
-    }
-}
-TEST_F(ChildLayerTest, DetachChildrenWithDeferredTransaction) {
-    sp<SurfaceComposerClient> newComposerClient = new SurfaceComposerClient;
-    sp<SurfaceControl> childNewClient =
-            newComposerClient->createSurface(String8("New Child Test Surface"), 10, 10,
-                                             PIXEL_FORMAT_RGBA_8888, 0, mFGSurfaceControl.get());
-
-    ASSERT_TRUE(childNewClient != nullptr);
-    ASSERT_TRUE(childNewClient->isValid());
-
-    TransactionUtils::fillSurfaceRGBA8(childNewClient, 200, 200, 200);
-
-    Transaction()
-            .hide(mChild)
-            .show(childNewClient)
-            .setPosition(childNewClient, 10, 10)
-            .setPosition(mFGSurfaceControl, 64, 64)
-            .apply();
-
-    {
-        mCapture = screenshot();
-        Rect rect = Rect(74, 74, 84, 84);
-        mCapture->expectBorder(rect, Color{195, 63, 63, 255});
-        mCapture->expectColor(rect, Color{200, 200, 200, 255});
-    }
-
-    Transaction()
-            .deferTransactionUntil_legacy(childNewClient, mFGSurfaceControl->getHandle(),
-                                          mFGSurfaceControl->getSurface()->getNextFrameNumber())
-            .apply();
-    Transaction().detachChildren(mFGSurfaceControl).apply();
-    ASSERT_NO_FATAL_FAILURE(fillBufferQueueLayerColor(mFGSurfaceControl, Color::RED, 32, 32));
-
-    // BufferLayer can still dequeue buffers even though there's a detached layer with a
-    // deferred transaction.
-    {
-        SCOPED_TRACE("new buffer");
-        mCapture = screenshot();
-        Rect rect = Rect(74, 74, 84, 84);
-        mCapture->expectBorder(rect, Color::RED);
-        mCapture->expectColor(rect, Color{200, 200, 200, 255});
-    }
-}
-
 TEST_F(ChildLayerTest, ChildrenInheritNonTransformScalingFromParent) {
     asTransaction([&](Transaction& t) {
         t.show(mChild);
diff --git a/services/surfaceflinger/tests/fakehwc/FakeComposerUtils.cpp b/services/surfaceflinger/tests/fakehwc/FakeComposerUtils.cpp
index 96a7541..1cea25a 100644
--- a/services/surfaceflinger/tests/fakehwc/FakeComposerUtils.cpp
+++ b/services/surfaceflinger/tests/fakehwc/FakeComposerUtils.cpp
@@ -29,8 +29,8 @@
 #include "SurfaceFlinger.h" // Get the name of the service...
 
 #include <binder/IServiceManager.h>
-
 #include <cutils/properties.h>
+#include <hidl/ServiceManagement.h>
 
 #include <iomanip>
 #include <thread>
@@ -173,7 +173,7 @@
     property_set("debug.sf.hwc_service_name", "mock");
 
     // This allows tests/SF to register/load a HIDL service not listed in manifest files.
-    setenv("TREBLE_TESTING_OVERRIDE", "true", true);
+    android::hardware::details::setTrebleTestingOverride(true);
     property_set("debug.sf.treble_testing_override", "true");
 }
 
diff --git a/services/surfaceflinger/tests/unittests/FrameTracerTest.cpp b/services/surfaceflinger/tests/unittests/FrameTracerTest.cpp
index 68cb52f..a119e27 100644
--- a/services/surfaceflinger/tests/unittests/FrameTracerTest.cpp
+++ b/services/surfaceflinger/tests/unittests/FrameTracerTest.cpp
@@ -77,6 +77,22 @@
         return tracingSession;
     }
 
+    std::vector<perfetto::protos::TracePacket> readGraphicsFramePacketsBlocking(
+            perfetto::TracingSession* tracingSession) {
+        std::vector<char> raw_trace = tracingSession->ReadTraceBlocking();
+        perfetto::protos::Trace trace;
+        EXPECT_TRUE(trace.ParseFromArray(raw_trace.data(), int(raw_trace.size())));
+
+        std::vector<perfetto::protos::TracePacket> packets;
+        for (const auto& packet : trace.packet()) {
+            if (!packet.has_graphics_frame_event()) {
+                continue;
+            }
+            packets.emplace_back(packet);
+        }
+        return packets;
+    }
+
     std::unique_ptr<FrameTracer> mFrameTracer;
     FenceToFenceTimeMap fenceFactory;
 };
@@ -142,40 +158,29 @@
         auto tracingSession = getTracingSessionForTest();
 
         tracingSession->StartBlocking();
-        // Clean up irrelevant traces.
-        tracingSession->ReadTraceBlocking();
-
         mFrameTracer->traceTimestamp(layerId, bufferID, frameNumber, timestamp, type, duration);
         // Create second trace packet to finalize the previous one.
         mFrameTracer->traceTimestamp(layerId, 0, 0, 0, FrameTracer::FrameEvent::UNSPECIFIED);
         tracingSession->StopBlocking();
 
-        std::vector<char> raw_trace = tracingSession->ReadTraceBlocking();
-        EXPECT_EQ(raw_trace.size(), 0);
+        auto packets = readGraphicsFramePacketsBlocking(tracingSession.get());
+        EXPECT_EQ(packets.size(), 0);
     }
 
     {
         auto tracingSession = getTracingSessionForTest();
 
         tracingSession->StartBlocking();
-        // Clean up irrelevant traces.
-        tracingSession->ReadTraceBlocking();
-
         mFrameTracer->traceNewLayer(layerId, layerName);
         mFrameTracer->traceTimestamp(layerId, bufferID, frameNumber, timestamp, type, duration);
         // Create second trace packet to finalize the previous one.
         mFrameTracer->traceTimestamp(layerId, 0, 0, 0, FrameTracer::FrameEvent::UNSPECIFIED);
         tracingSession->StopBlocking();
 
-        std::vector<char> raw_trace = tracingSession->ReadTraceBlocking();
-        ASSERT_GT(raw_trace.size(), 0);
+        auto packets = readGraphicsFramePacketsBlocking(tracingSession.get());
+        EXPECT_EQ(packets.size(), 1);
 
-        perfetto::protos::Trace trace;
-        ASSERT_TRUE(trace.ParseFromArray(raw_trace.data(), int(raw_trace.size())));
-        ASSERT_FALSE(trace.packet().empty());
-        EXPECT_EQ(trace.packet().size(), 1);
-
-        const auto& packet = trace.packet().Get(0);
+        const auto& packet = packets[0];
         ASSERT_TRUE(packet.has_timestamp());
         EXPECT_EQ(packet.timestamp(), timestamp);
         ASSERT_TRUE(packet.has_graphics_frame_event());
@@ -205,24 +210,21 @@
         fenceFactory.signalAllForTest(Fence::NO_FENCE, Fence::SIGNAL_TIME_PENDING);
         auto tracingSession = getTracingSessionForTest();
         tracingSession->StartBlocking();
-        // Clean up irrelevant traces.
-        tracingSession->ReadTraceBlocking();
         // Trace.
         mFrameTracer->traceNewLayer(layerId, layerName);
         mFrameTracer->traceFence(layerId, bufferID, frameNumber, fenceTime, type);
         // Create extra trace packet to (hopefully not) trigger and finalize the fence packet.
         mFrameTracer->traceTimestamp(layerId, bufferID, 0, 0, FrameTracer::FrameEvent::UNSPECIFIED);
         tracingSession->StopBlocking();
-        std::vector<char> raw_trace = tracingSession->ReadTraceBlocking();
-        EXPECT_EQ(raw_trace.size(), 0);
+
+        auto packets = readGraphicsFramePacketsBlocking(tracingSession.get());
+        EXPECT_EQ(packets.size(), 0);
     }
 
     {
         auto fenceTime = fenceFactory.createFenceTimeForTest(Fence::NO_FENCE);
         auto tracingSession = getTracingSessionForTest();
         tracingSession->StartBlocking();
-        // Clean up irrelevant traces.
-        tracingSession->ReadTraceBlocking();
         mFrameTracer->traceNewLayer(layerId, layerName);
         mFrameTracer->traceFence(layerId, bufferID, frameNumber, fenceTime, type);
         const nsecs_t timestamp = systemTime();
@@ -231,15 +233,10 @@
         mFrameTracer->traceTimestamp(layerId, bufferID, 0, 0, FrameTracer::FrameEvent::UNSPECIFIED);
         tracingSession->StopBlocking();
 
-        std::vector<char> raw_trace = tracingSession->ReadTraceBlocking();
-        ASSERT_GT(raw_trace.size(), 0);
+        auto packets = readGraphicsFramePacketsBlocking(tracingSession.get());
+        EXPECT_EQ(packets.size(), 2); // Two packets because of the extra trace made above.
 
-        perfetto::protos::Trace trace;
-        ASSERT_TRUE(trace.ParseFromArray(raw_trace.data(), int(raw_trace.size())));
-        ASSERT_FALSE(trace.packet().empty());
-        EXPECT_EQ(trace.packet().size(), 2); // Two packets because of the extra trace made above.
-
-        const auto& packet = trace.packet().Get(1);
+        const auto& packet = packets[1];
         ASSERT_TRUE(packet.has_timestamp());
         EXPECT_EQ(packet.timestamp(), timestamp);
         ASSERT_TRUE(packet.has_graphics_frame_event());
@@ -266,8 +263,6 @@
     auto tracingSession = getTracingSessionForTest();
 
     tracingSession->StartBlocking();
-    // Clean up irrelevant traces.
-    tracingSession->ReadTraceBlocking();
     mFrameTracer->traceNewLayer(layerId, layerName);
 
     // traceFence called after fence signalled.
@@ -288,22 +283,17 @@
     mFrameTracer->traceTimestamp(layerId, bufferID, 0, 0, FrameTracer::FrameEvent::UNSPECIFIED);
     tracingSession->StopBlocking();
 
-    std::vector<char> raw_trace = tracingSession->ReadTraceBlocking();
-    ASSERT_GT(raw_trace.size(), 0);
+    auto packets = readGraphicsFramePacketsBlocking(tracingSession.get());
+    EXPECT_EQ(packets.size(), 2);
 
-    perfetto::protos::Trace trace;
-    ASSERT_TRUE(trace.ParseFromArray(raw_trace.data(), int(raw_trace.size())));
-    ASSERT_FALSE(trace.packet().empty());
-    EXPECT_EQ(trace.packet().size(), 2);
-
-    const auto& packet1 = trace.packet().Get(0);
+    const auto& packet1 = packets[0];
     ASSERT_TRUE(packet1.has_timestamp());
     EXPECT_EQ(packet1.timestamp(), signalTime1);
     ASSERT_TRUE(packet1.has_graphics_frame_event());
     ASSERT_TRUE(packet1.graphics_frame_event().has_buffer_event());
     ASSERT_FALSE(packet1.graphics_frame_event().buffer_event().has_duration_ns());
 
-    const auto& packet2 = trace.packet().Get(1);
+    const auto& packet2 = packets[1];
     ASSERT_TRUE(packet2.has_timestamp());
     EXPECT_EQ(packet2.timestamp(), signalTime2);
     ASSERT_TRUE(packet2.has_graphics_frame_event());
@@ -323,8 +313,6 @@
     auto fence = fenceFactory.createFenceTimeForTest(Fence::NO_FENCE);
 
     tracingSession->StartBlocking();
-    // Clean up irrelevant traces.
-    tracingSession->ReadTraceBlocking();
     mFrameTracer->traceNewLayer(layerId, layerName);
     mFrameTracer->traceFence(layerId, bufferID, frameNumber, fence, type);
     fenceFactory.signalAllForTest(Fence::NO_FENCE, signalTime);
@@ -332,8 +320,8 @@
     mFrameTracer->traceTimestamp(layerId, bufferID, 0, 0, FrameTracer::FrameEvent::UNSPECIFIED);
     tracingSession->StopBlocking();
 
-    std::vector<char> raw_trace = tracingSession->ReadTraceBlocking();
-    EXPECT_EQ(raw_trace.size(), 0);
+    auto packets = readGraphicsFramePacketsBlocking(tracingSession.get());
+    EXPECT_EQ(packets.size(), 0);
 }
 
 TEST_F(FrameTracerTest, traceFenceWithValidStartTime_ShouldHaveCorrectDuration) {
@@ -347,8 +335,6 @@
     auto tracingSession = getTracingSessionForTest();
 
     tracingSession->StartBlocking();
-    // Clean up irrelevant traces.
-    tracingSession->ReadTraceBlocking();
     mFrameTracer->traceNewLayer(layerId, layerName);
 
     // traceFence called after fence signalled.
@@ -369,15 +355,10 @@
     mFrameTracer->traceTimestamp(layerId, bufferID, 0, 0, FrameTracer::FrameEvent::UNSPECIFIED);
     tracingSession->StopBlocking();
 
-    std::vector<char> raw_trace = tracingSession->ReadTraceBlocking();
-    ASSERT_GT(raw_trace.size(), 0);
+    auto packets = readGraphicsFramePacketsBlocking(tracingSession.get());
+    EXPECT_EQ(packets.size(), 2);
 
-    perfetto::protos::Trace trace;
-    ASSERT_TRUE(trace.ParseFromArray(raw_trace.data(), int(raw_trace.size())));
-    ASSERT_FALSE(trace.packet().empty());
-    EXPECT_EQ(trace.packet().size(), 2);
-
-    const auto& packet1 = trace.packet().Get(0);
+    const auto& packet1 = packets[0];
     ASSERT_TRUE(packet1.has_timestamp());
     EXPECT_EQ(packet1.timestamp(), startTime1);
     ASSERT_TRUE(packet1.has_graphics_frame_event());
@@ -386,7 +367,7 @@
     const auto& buffer_event1 = packet1.graphics_frame_event().buffer_event();
     EXPECT_EQ(buffer_event1.duration_ns(), duration);
 
-    const auto& packet2 = trace.packet().Get(1);
+    const auto& packet2 = packets[1];
     ASSERT_TRUE(packet2.has_timestamp());
     EXPECT_EQ(packet2.timestamp(), startTime2);
     ASSERT_TRUE(packet2.has_graphics_frame_event());
diff --git a/services/surfaceflinger/tests/unittests/RefreshRateConfigsTest.cpp b/services/surfaceflinger/tests/unittests/RefreshRateConfigsTest.cpp
index 03d4460..1f6f166 100644
--- a/services/surfaceflinger/tests/unittests/RefreshRateConfigsTest.cpp
+++ b/services/surfaceflinger/tests/unittests/RefreshRateConfigsTest.cpp
@@ -1130,15 +1130,6 @@
     auto& lr = layers[0];
 
     RefreshRateConfigs::GlobalSignals consideredSignals;
-    lr.vote = LayerVoteType::ExplicitExactOrMultiple;
-    lr.desiredRefreshRate = 60.0f;
-    lr.name = "60Hz ExplicitExactOrMultiple";
-    lr.focused = true;
-    EXPECT_EQ(mExpected60Config,
-              refreshRateConfigs->getBestRefreshRate(layers, {.touch = true, .idle = true},
-                                                     &consideredSignals));
-    EXPECT_EQ(false, consideredSignals.touch);
-
     lr.vote = LayerVoteType::ExplicitDefault;
     lr.desiredRefreshRate = 60.0f;
     lr.name = "60Hz ExplicitDefault";
@@ -1162,13 +1153,6 @@
     auto layers = std::vector<LayerRequirement>{LayerRequirement{.weight = 1.0f}};
     auto& lr = layers[0];
 
-    lr.vote = LayerVoteType::ExplicitExactOrMultiple;
-    lr.desiredRefreshRate = 90.0f;
-    lr.name = "90Hz ExplicitExactOrMultiple";
-    lr.focused = true;
-    EXPECT_EQ(mExpected90Config,
-              refreshRateConfigs->getBestRefreshRate(layers, {.touch = false, .idle = true}));
-
     lr.vote = LayerVoteType::ExplicitDefault;
     lr.desiredRefreshRate = 90.0f;
     lr.name = "90Hz ExplicitDefault";
@@ -1204,7 +1188,7 @@
               refreshRateConfigs->getBestRefreshRate(layers, {.touch = false, .idle = false}));
 
     lr.focused = true;
-    EXPECT_EQ(mExpected60Config,
+    EXPECT_EQ(mExpected90Config,
               refreshRateConfigs->getBestRefreshRate(layers, {.touch = false, .idle = false}));
 
     lr.vote = LayerVoteType::ExplicitDefault;
@@ -1306,7 +1290,7 @@
     EXPECT_EQ(HWC_CONFIG_ID_60, getFrameRate(LayerVoteType::Max, 90.f));
     EXPECT_EQ(HWC_CONFIG_ID_60, getFrameRate(LayerVoteType::Heuristic, 90.f));
     EXPECT_EQ(HWC_CONFIG_ID_90, getFrameRate(LayerVoteType::ExplicitDefault, 90.f));
-    EXPECT_EQ(HWC_CONFIG_ID_90, getFrameRate(LayerVoteType::ExplicitExactOrMultiple, 90.f));
+    EXPECT_EQ(HWC_CONFIG_ID_60, getFrameRate(LayerVoteType::ExplicitExactOrMultiple, 90.f));
 
     // Layers not focused are not allowed to override primary config
     EXPECT_EQ(HWC_CONFIG_ID_60,
@@ -1321,7 +1305,7 @@
     // When we're higher than the primary range max due to a layer frame rate setting, touch boost
     // shouldn't drag us back down to the primary range max.
     EXPECT_EQ(HWC_CONFIG_ID_90, getFrameRate(LayerVoteType::ExplicitDefault, 90.f, /*touch=*/true));
-    EXPECT_EQ(HWC_CONFIG_ID_90,
+    EXPECT_EQ(HWC_CONFIG_ID_60,
               getFrameRate(LayerVoteType::ExplicitExactOrMultiple, 90.f, /*touch=*/true));
 
     ASSERT_GE(refreshRateConfigs->setDisplayManagerPolicy(
diff --git a/services/surfaceflinger/tests/unittests/VSyncDispatchRealtimeTest.cpp b/services/surfaceflinger/tests/unittests/VSyncDispatchRealtimeTest.cpp
index be49ef3..c2a7752 100644
--- a/services/surfaceflinger/tests/unittests/VSyncDispatchRealtimeTest.cpp
+++ b/services/surfaceflinger/tests/unittests/VSyncDispatchRealtimeTest.cpp
@@ -51,6 +51,7 @@
 
     void setPeriod(nsecs_t) final {}
     void resetModel() final {}
+    bool needsMoreSamples() const final { return false; }
     void dump(std::string&) const final {}
 
 private:
@@ -86,6 +87,7 @@
 
     void setPeriod(nsecs_t) final {}
     void resetModel() final {}
+    bool needsMoreSamples() const final { return false; }
     void dump(std::string&) const final {}
 
 private:
diff --git a/services/surfaceflinger/tests/unittests/VSyncDispatchTimerQueueTest.cpp b/services/surfaceflinger/tests/unittests/VSyncDispatchTimerQueueTest.cpp
index d940dc5..65c391d 100644
--- a/services/surfaceflinger/tests/unittests/VSyncDispatchTimerQueueTest.cpp
+++ b/services/surfaceflinger/tests/unittests/VSyncDispatchTimerQueueTest.cpp
@@ -47,6 +47,7 @@
     MOCK_CONST_METHOD0(currentPeriod, nsecs_t());
     MOCK_METHOD1(setPeriod, void(nsecs_t));
     MOCK_METHOD0(resetModel, void());
+    MOCK_CONST_METHOD0(needsMoreSamples, bool());
     MOCK_CONST_METHOD1(dump, void(std::string&));
 
     nsecs_t nextVSyncTime(nsecs_t timePoint) const {
diff --git a/services/surfaceflinger/tests/unittests/VSyncPredictorTest.cpp b/services/surfaceflinger/tests/unittests/VSyncPredictorTest.cpp
index fc39235..d4cd11d 100644
--- a/services/surfaceflinger/tests/unittests/VSyncPredictorTest.cpp
+++ b/services/surfaceflinger/tests/unittests/VSyncPredictorTest.cpp
@@ -73,27 +73,27 @@
 
 TEST_F(VSyncPredictorTest, reportsSamplesNeededWhenHasNoDataPoints) {
     for (auto i = 0u; i < kMinimumSamplesForPrediction; i++) {
-        EXPECT_TRUE(tracker.needsMoreSamples(mNow += mPeriod));
-        tracker.addVsyncTimestamp(mNow);
+        EXPECT_TRUE(tracker.needsMoreSamples());
+        tracker.addVsyncTimestamp(mNow += mPeriod);
     }
-    EXPECT_FALSE(tracker.needsMoreSamples(mNow));
+    EXPECT_FALSE(tracker.needsMoreSamples());
 }
 
 TEST_F(VSyncPredictorTest, reportsSamplesNeededAfterExplicitRateChange) {
     for (auto i = 0u; i < kMinimumSamplesForPrediction; i++) {
         tracker.addVsyncTimestamp(mNow += mPeriod);
     }
-    EXPECT_FALSE(tracker.needsMoreSamples(mNow));
+    EXPECT_FALSE(tracker.needsMoreSamples());
 
     auto const changedPeriod = mPeriod * 2;
     tracker.setPeriod(changedPeriod);
-    EXPECT_TRUE(tracker.needsMoreSamples(mNow));
+    EXPECT_TRUE(tracker.needsMoreSamples());
 
     for (auto i = 0u; i < kMinimumSamplesForPrediction; i++) {
-        EXPECT_TRUE(tracker.needsMoreSamples(mNow += changedPeriod));
-        tracker.addVsyncTimestamp(mNow);
+        EXPECT_TRUE(tracker.needsMoreSamples());
+        tracker.addVsyncTimestamp(mNow += changedPeriod);
     }
-    EXPECT_FALSE(tracker.needsMoreSamples(mNow));
+    EXPECT_FALSE(tracker.needsMoreSamples());
 }
 
 TEST_F(VSyncPredictorTest, transitionsToModelledPointsAfterSynthetic) {
@@ -320,20 +320,6 @@
     EXPECT_THAT(intercept, Eq(0));
 }
 
-TEST_F(VSyncPredictorTest, willBecomeInaccurateAfterA_longTimeWithNoSamples) {
-    auto const simulatedVsyncs = generateVsyncTimestamps(kMinimumSamplesForPrediction, mPeriod, 0);
-
-    for (auto const& timestamp : simulatedVsyncs) {
-        tracker.addVsyncTimestamp(timestamp);
-    }
-    auto const mNow = *simulatedVsyncs.rbegin();
-    EXPECT_FALSE(tracker.needsMoreSamples(mNow));
-
-    // TODO: would be better to decay this as a result of the variance of the samples
-    static auto constexpr aLongTimeOut = 1000000000;
-    EXPECT_TRUE(tracker.needsMoreSamples(mNow + aLongTimeOut));
-}
-
 TEST_F(VSyncPredictorTest, idealModelPredictionsBeforeRegressionModelIsBuilt) {
     auto const simulatedVsyncs =
             generateVsyncTimestamps(kMinimumSamplesForPrediction + 1, mPeriod, 0);
@@ -443,7 +429,7 @@
         // When VsyncPredictor returns the period it means that it doesn't know how to predict and
         // it needs to get more samples
         if (slope == mPeriod && intercept == 0) {
-            EXPECT_TRUE(tracker.needsMoreSamples(now));
+            EXPECT_TRUE(tracker.needsMoreSamples());
         }
     }
 }
diff --git a/services/surfaceflinger/tests/unittests/VSyncReactorTest.cpp b/services/surfaceflinger/tests/unittests/VSyncReactorTest.cpp
index a972562..6856612 100644
--- a/services/surfaceflinger/tests/unittests/VSyncReactorTest.cpp
+++ b/services/surfaceflinger/tests/unittests/VSyncReactorTest.cpp
@@ -41,6 +41,7 @@
     MOCK_CONST_METHOD0(currentPeriod, nsecs_t());
     MOCK_METHOD1(setPeriod, void(nsecs_t));
     MOCK_METHOD0(resetModel, void());
+    MOCK_CONST_METHOD0(needsMoreSamples, bool());
     MOCK_CONST_METHOD1(dump, void(std::string&));
 };
 
@@ -57,6 +58,7 @@
     nsecs_t currentPeriod() const final { return mTracker->currentPeriod(); }
     void setPeriod(nsecs_t period) final { mTracker->setPeriod(period); }
     void resetModel() final { mTracker->resetModel(); }
+    bool needsMoreSamples() const final { return mTracker->needsMoreSamples(); }
     void dump(std::string& result) const final { mTracker->dump(result); }
 
 private:
@@ -455,6 +457,83 @@
     EXPECT_FALSE(mReactor.addPresentFence(generateSignalledFenceWithTime(0)));
 }
 
+TEST_F(VSyncReactorTest, hwVsyncIsRequestedForTracker) {
+    auto time = 0;
+    bool periodFlushed = false;
+    nsecs_t const newPeriod = 4000;
+    mReactor.setPeriod(newPeriod);
+
+    static auto constexpr numSamplesWithNewPeriod = 4;
+    Sequence seq;
+    EXPECT_CALL(*mMockTracker, needsMoreSamples())
+            .Times(numSamplesWithNewPeriod - 2)
+            .InSequence(seq)
+            .WillRepeatedly(Return(true));
+    EXPECT_CALL(*mMockTracker, needsMoreSamples())
+            .Times(1)
+            .InSequence(seq)
+            .WillRepeatedly(Return(false));
+    EXPECT_CALL(*mMockTracker, addVsyncTimestamp(_)).Times(numSamplesWithNewPeriod);
+
+    EXPECT_TRUE(mReactor.addResyncSample(time += period, std::nullopt, &periodFlushed));
+
+    EXPECT_TRUE(mReactor.addResyncSample(time += period, std::nullopt, &periodFlushed));
+    // confirmed period, but predictor wants numRequest samples. This one and prior are valid.
+    EXPECT_TRUE(mReactor.addResyncSample(time += newPeriod, std::nullopt, &periodFlushed));
+    EXPECT_TRUE(mReactor.addResyncSample(time += newPeriod, std::nullopt, &periodFlushed));
+    EXPECT_FALSE(mReactor.addResyncSample(time += newPeriod, std::nullopt, &periodFlushed));
+}
+
+TEST_F(VSyncReactorTest, hwVsyncturnsOffOnConfirmationWhenTrackerDoesntRequest) {
+    auto time = 0;
+    bool periodFlushed = false;
+    nsecs_t const newPeriod = 4000;
+    mReactor.setPeriod(newPeriod);
+
+    Sequence seq;
+    EXPECT_CALL(*mMockTracker, needsMoreSamples())
+            .Times(1)
+            .InSequence(seq)
+            .WillRepeatedly(Return(false));
+    EXPECT_CALL(*mMockTracker, addVsyncTimestamp(_)).Times(2);
+
+    EXPECT_TRUE(mReactor.addResyncSample(time += period, std::nullopt, &periodFlushed));
+    EXPECT_TRUE(mReactor.addResyncSample(time += period, std::nullopt, &periodFlushed));
+    EXPECT_FALSE(mReactor.addResyncSample(time += newPeriod, std::nullopt, &periodFlushed));
+}
+
+TEST_F(VSyncReactorTest, hwVsyncIsRequestedForTrackerMultiplePeriodChanges) {
+    auto time = 0;
+    bool periodFlushed = false;
+    nsecs_t const newPeriod1 = 4000;
+    nsecs_t const newPeriod2 = 7000;
+
+    mReactor.setPeriod(newPeriod1);
+
+    Sequence seq;
+    EXPECT_CALL(*mMockTracker, needsMoreSamples())
+            .Times(4)
+            .InSequence(seq)
+            .WillRepeatedly(Return(true));
+    EXPECT_CALL(*mMockTracker, needsMoreSamples())
+            .Times(1)
+            .InSequence(seq)
+            .WillRepeatedly(Return(false));
+    EXPECT_CALL(*mMockTracker, addVsyncTimestamp(_)).Times(7);
+
+    EXPECT_TRUE(mReactor.addResyncSample(time += period, std::nullopt, &periodFlushed));
+    EXPECT_TRUE(mReactor.addResyncSample(time += period, std::nullopt, &periodFlushed));
+    // confirmed period, but predictor wants numRequest samples. This one and prior are valid.
+    EXPECT_TRUE(mReactor.addResyncSample(time += newPeriod1, std::nullopt, &periodFlushed));
+    EXPECT_TRUE(mReactor.addResyncSample(time += newPeriod1, std::nullopt, &periodFlushed));
+
+    mReactor.setPeriod(newPeriod2);
+    EXPECT_TRUE(mReactor.addResyncSample(time += newPeriod1, std::nullopt, &periodFlushed));
+    EXPECT_TRUE(mReactor.addResyncSample(time += newPeriod2, std::nullopt, &periodFlushed));
+    EXPECT_TRUE(mReactor.addResyncSample(time += newPeriod2, std::nullopt, &periodFlushed));
+    EXPECT_FALSE(mReactor.addResyncSample(time += newPeriod2, std::nullopt, &periodFlushed));
+}
+
 static nsecs_t computeWorkload(nsecs_t period, nsecs_t phase) {
     return period - phase;
 }
@@ -648,7 +727,7 @@
 
 TEST_F(VSyncReactorTest, periodChangeWithGivenVsyncPeriod) {
     bool periodFlushed = true;
-    EXPECT_CALL(*mMockTracker, addVsyncTimestamp(_)).Times(3);
+    EXPECT_CALL(*mMockTracker, addVsyncTimestamp(_)).Times(2);
     mReactor.setIgnorePresentFences(true);
 
     nsecs_t const newPeriod = 5000;
@@ -672,7 +751,7 @@
                                     kPendingLimit, true /* supportKernelIdleTimer */);
 
     bool periodFlushed = true;
-    EXPECT_CALL(*mMockTracker, addVsyncTimestamp(_)).Times(5);
+    EXPECT_CALL(*mMockTracker, addVsyncTimestamp(_)).Times(4);
     idleReactor.setIgnorePresentFences(true);
 
     // First, set the same period, which should only be confirmed when we receive two
diff --git a/vulkan/libvulkan/api.h b/vulkan/libvulkan/api.h
index 416cba0..2a215d7 100644
--- a/vulkan/libvulkan/api.h
+++ b/vulkan/libvulkan/api.h
@@ -24,17 +24,34 @@
 namespace vulkan {
 namespace api {
 
-// clang-format off
-VKAPI_ATTR VkResult CreateInstance(const VkInstanceCreateInfo* pCreateInfo, const VkAllocationCallbacks* pAllocator, VkInstance* pInstance);
-VKAPI_ATTR void DestroyInstance(VkInstance instance, const VkAllocationCallbacks* pAllocator);
-VKAPI_ATTR VkResult CreateDevice(VkPhysicalDevice physicalDevice, const VkDeviceCreateInfo* pCreateInfo, const VkAllocationCallbacks* pAllocator, VkDevice* pDevice);
-VKAPI_ATTR void DestroyDevice(VkDevice device, const VkAllocationCallbacks* pAllocator);
-VKAPI_ATTR VkResult EnumerateInstanceLayerProperties(uint32_t* pPropertyCount, VkLayerProperties* pProperties);
-VKAPI_ATTR VkResult EnumerateInstanceExtensionProperties(const char* pLayerName, uint32_t* pPropertyCount, VkExtensionProperties* pProperties);
-VKAPI_ATTR VkResult EnumerateDeviceLayerProperties(VkPhysicalDevice physicalDevice, uint32_t* pPropertyCount, VkLayerProperties* pProperties);
-VKAPI_ATTR VkResult EnumerateDeviceExtensionProperties(VkPhysicalDevice physicalDevice, const char* pLayerName, uint32_t* pPropertyCount, VkExtensionProperties* pProperties);
+VKAPI_ATTR VkResult CreateInstance(const VkInstanceCreateInfo* pCreateInfo,
+                                   const VkAllocationCallbacks* pAllocator,
+                                   VkInstance* pInstance);
+VKAPI_ATTR void DestroyInstance(VkInstance instance,
+                                const VkAllocationCallbacks* pAllocator);
+VKAPI_ATTR VkResult CreateDevice(VkPhysicalDevice physicalDevice,
+                                 const VkDeviceCreateInfo* pCreateInfo,
+                                 const VkAllocationCallbacks* pAllocator,
+                                 VkDevice* pDevice);
+VKAPI_ATTR void DestroyDevice(VkDevice device,
+                              const VkAllocationCallbacks* pAllocator);
+VKAPI_ATTR VkResult
+EnumerateInstanceLayerProperties(uint32_t* pPropertyCount,
+                                 VkLayerProperties* pProperties);
+VKAPI_ATTR VkResult
+EnumerateInstanceExtensionProperties(const char* pLayerName,
+                                     uint32_t* pPropertyCount,
+                                     VkExtensionProperties* pProperties);
+VKAPI_ATTR VkResult
+EnumerateDeviceLayerProperties(VkPhysicalDevice physicalDevice,
+                               uint32_t* pPropertyCount,
+                               VkLayerProperties* pProperties);
+VKAPI_ATTR VkResult
+EnumerateDeviceExtensionProperties(VkPhysicalDevice physicalDevice,
+                                   const char* pLayerName,
+                                   uint32_t* pPropertyCount,
+                                   VkExtensionProperties* pProperties);
 VKAPI_ATTR VkResult EnumerateInstanceVersion(uint32_t* pApiVersion);
-// clang-format on
 
 inline InstanceData& GetData(VkInstance instance) {
     return driver::GetData(instance).opaque_api_data;
diff --git a/vulkan/libvulkan/driver.cpp b/vulkan/libvulkan/driver.cpp
index 74ef0e7..e3fc67e 100644
--- a/vulkan/libvulkan/driver.cpp
+++ b/vulkan/libvulkan/driver.cpp
@@ -95,15 +95,15 @@
 class CreateInfoWrapper {
    public:
     CreateInfoWrapper(const VkInstanceCreateInfo& create_info,
+                      uint32_t icd_api_version,
                       const VkAllocationCallbacks& allocator);
     CreateInfoWrapper(VkPhysicalDevice physical_dev,
                       const VkDeviceCreateInfo& create_info,
+                      uint32_t icd_api_version,
                       const VkAllocationCallbacks& allocator);
     ~CreateInfoWrapper();
 
     VkResult Validate();
-    void DowngradeApiVersion();
-    void UpgradeDeviceCoreApiVersion(uint32_t api_version);
 
     const std::bitset<ProcHook::EXTENSION_COUNT>& GetHookExtensions() const;
     const std::bitset<ProcHook::EXTENSION_COUNT>& GetHalExtensions() const;
@@ -120,8 +120,8 @@
         uint32_t name_count;
     };
 
+    VkResult SanitizeApiVersion();
     VkResult SanitizePNext();
-
     VkResult SanitizeLayers();
     VkResult SanitizeExtensions();
 
@@ -133,6 +133,8 @@
 
     const bool is_instance_;
     const VkAllocationCallbacks& allocator_;
+    const uint32_t loader_api_version_;
+    const uint32_t icd_api_version_;
 
     VkPhysicalDevice physical_dev_;
 
@@ -324,32 +326,27 @@
 }
 
 CreateInfoWrapper::CreateInfoWrapper(const VkInstanceCreateInfo& create_info,
+                                     uint32_t icd_api_version,
                                      const VkAllocationCallbacks& allocator)
     : is_instance_(true),
       allocator_(allocator),
+      loader_api_version_(VK_API_VERSION_1_1),
+      icd_api_version_(icd_api_version),
       physical_dev_(VK_NULL_HANDLE),
       instance_info_(create_info),
-      extension_filter_() {
-    // instance core versions need to match the loader api version
-    for (uint32_t i = ProcHook::EXTENSION_CORE_1_0;
-         i != ProcHook::EXTENSION_COUNT; ++i) {
-        hook_extensions_.set(i);
-        hal_extensions_.set(i);
-    }
-}
+      extension_filter_() {}
 
 CreateInfoWrapper::CreateInfoWrapper(VkPhysicalDevice physical_dev,
                                      const VkDeviceCreateInfo& create_info,
+                                     uint32_t icd_api_version,
                                      const VkAllocationCallbacks& allocator)
     : is_instance_(false),
       allocator_(allocator),
+      loader_api_version_(VK_API_VERSION_1_1),
+      icd_api_version_(icd_api_version),
       physical_dev_(physical_dev),
       dev_info_(create_info),
-      extension_filter_() {
-    // initialize with baseline core API version
-    hook_extensions_.set(ProcHook::EXTENSION_CORE_1_0);
-    hal_extensions_.set(ProcHook::EXTENSION_CORE_1_0);
-}
+      extension_filter_() {}
 
 CreateInfoWrapper::~CreateInfoWrapper() {
     allocator_.pfnFree(allocator_.pUserData, extension_filter_.exts);
@@ -357,7 +354,9 @@
 }
 
 VkResult CreateInfoWrapper::Validate() {
-    VkResult result = SanitizePNext();
+    VkResult result = SanitizeApiVersion();
+    if (result == VK_SUCCESS)
+        result = SanitizePNext();
     if (result == VK_SUCCESS)
         result = SanitizeLayers();
     if (result == VK_SUCCESS)
@@ -384,6 +383,22 @@
     return &dev_info_;
 }
 
+VkResult CreateInfoWrapper::SanitizeApiVersion() {
+    if (!is_instance_ || !instance_info_.pApplicationInfo)
+        return VK_SUCCESS;
+
+    if (icd_api_version_ > VK_API_VERSION_1_0 ||
+        instance_info_.pApplicationInfo->apiVersion < VK_API_VERSION_1_1)
+        return VK_SUCCESS;
+
+    // override apiVersion to avoid error return from 1.0 icd
+    application_info_ = *instance_info_.pApplicationInfo;
+    application_info_.apiVersion = VK_API_VERSION_1_0;
+    instance_info_.pApplicationInfo = &application_info_;
+
+    return VK_SUCCESS;
+}
+
 VkResult CreateInfoWrapper::SanitizePNext() {
     const struct StructHeader {
         VkStructureType type;
@@ -431,15 +446,33 @@
                                      : dev_info_.ppEnabledExtensionNames;
     auto& ext_count = (is_instance_) ? instance_info_.enabledExtensionCount
                                      : dev_info_.enabledExtensionCount;
-    if (!ext_count)
-        return VK_SUCCESS;
 
     VkResult result = InitExtensionFilter();
     if (result != VK_SUCCESS)
         return result;
 
-    for (uint32_t i = 0; i < ext_count; i++)
-        FilterExtension(ext_names[i]);
+    if (is_instance_ && icd_api_version_ < loader_api_version_) {
+        for (uint32_t i = 0; i < ext_count; i++) {
+            // Upon api downgrade, skip the promoted instance extensions in the
+            // first pass to avoid duplicate extensions.
+            const std::optional<uint32_t> version =
+                GetInstanceExtensionPromotedVersion(ext_names[i]);
+            if (version && *version > icd_api_version_ &&
+                *version <= loader_api_version_)
+                continue;
+
+            FilterExtension(ext_names[i]);
+        }
+
+        // Enable the required extensions to support core functionalities.
+        const auto promoted_extensions = GetPromotedInstanceExtensions(
+            icd_api_version_, loader_api_version_);
+        for (const auto& promoted_extension : promoted_extensions)
+            FilterExtension(promoted_extension);
+    } else {
+        for (uint32_t i = 0; i < ext_count; i++)
+            FilterExtension(ext_names[i]);
+    }
 
     // Enable device extensions that contain physical-device commands, so that
     // vkGetInstanceProcAddr will return those physical-device commands.
@@ -447,6 +480,23 @@
         hook_extensions_.set(ProcHook::KHR_swapchain);
     }
 
+    const uint32_t api_version =
+        is_instance_ ? loader_api_version_
+                     : std::min(icd_api_version_, loader_api_version_);
+    switch (api_version) {
+        case VK_API_VERSION_1_1:
+            hook_extensions_.set(ProcHook::EXTENSION_CORE_1_1);
+            hal_extensions_.set(ProcHook::EXTENSION_CORE_1_1);
+            [[clang::fallthrough]];
+        case VK_API_VERSION_1_0:
+            hook_extensions_.set(ProcHook::EXTENSION_CORE_1_0);
+            hal_extensions_.set(ProcHook::EXTENSION_CORE_1_0);
+            break;
+        default:
+            ALOGE("Unknown API version[%u]", api_version);
+            break;
+    }
+
     ext_names = extension_filter_.names;
     ext_count = extension_filter_.name_count;
 
@@ -504,10 +554,20 @@
     filter.ext_count = count;
 
     // allocate name array
-    uint32_t enabled_ext_count = (is_instance_)
-                                     ? instance_info_.enabledExtensionCount
-                                     : dev_info_.enabledExtensionCount;
-    count = std::min(filter.ext_count, enabled_ext_count);
+    if (is_instance_) {
+        uint32_t enabled_ext_count = instance_info_.enabledExtensionCount;
+
+        // It requires enabling additional promoted extensions to downgrade api,
+        // so we reserve enough space here.
+        if (icd_api_version_ < loader_api_version_) {
+            enabled_ext_count += CountPromotedInstanceExtensions(
+                icd_api_version_, loader_api_version_);
+        }
+
+        count = std::min(filter.ext_count, enabled_ext_count);
+    } else {
+        count = std::min(filter.ext_count, dev_info_.enabledExtensionCount);
+    }
     filter.names = reinterpret_cast<const char**>(allocator_.pfnAllocation(
         allocator_.pUserData, sizeof(const char*) * count, alignof(const char*),
         VK_SYSTEM_ALLOCATION_SCOPE_COMMAND));
@@ -535,6 +595,10 @@
                 hook_extensions_.set(ext_bit);
                 break;
             case ProcHook::KHR_get_physical_device_properties2:
+            case ProcHook::KHR_device_group_creation:
+            case ProcHook::KHR_external_memory_capabilities:
+            case ProcHook::KHR_external_semaphore_capabilities:
+            case ProcHook::KHR_external_fence_capabilities:
             case ProcHook::EXTENSION_UNKNOWN:
                 // Extensions we don't need to do anything about at this level
                 break;
@@ -591,6 +655,10 @@
 
             case ProcHook::KHR_android_surface:
             case ProcHook::KHR_get_physical_device_properties2:
+            case ProcHook::KHR_device_group_creation:
+            case ProcHook::KHR_external_memory_capabilities:
+            case ProcHook::KHR_external_semaphore_capabilities:
+            case ProcHook::KHR_external_fence_capabilities:
             case ProcHook::KHR_get_surface_capabilities2:
             case ProcHook::KHR_surface:
             case ProcHook::EXT_debug_report:
@@ -636,40 +704,6 @@
     }
 }
 
-void CreateInfoWrapper::DowngradeApiVersion() {
-    // If pApplicationInfo is NULL, apiVersion is assumed to be 1.0:
-    if (instance_info_.pApplicationInfo) {
-        application_info_ = *instance_info_.pApplicationInfo;
-        instance_info_.pApplicationInfo = &application_info_;
-        application_info_.apiVersion = VK_API_VERSION_1_0;
-    }
-}
-
-void CreateInfoWrapper::UpgradeDeviceCoreApiVersion(uint32_t api_version) {
-    ALOG_ASSERT(!is_instance_, "Device only API called by instance wrapper.");
-
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wold-style-cast"
-    api_version ^= VK_VERSION_PATCH(api_version);
-#pragma clang diagnostic pop
-
-    // cap the API version to the loader supported highest version
-    if (api_version > VK_API_VERSION_1_1)
-        api_version = VK_API_VERSION_1_1;
-
-    switch (api_version) {
-        case VK_API_VERSION_1_1:
-            hook_extensions_.set(ProcHook::EXTENSION_CORE_1_1);
-            hal_extensions_.set(ProcHook::EXTENSION_CORE_1_1);
-            [[clang::fallthrough]];
-        case VK_API_VERSION_1_0:
-            break;
-        default:
-            ALOGD("Unknown upgrade API version[%u]", api_version);
-            break;
-    }
-}
-
 VKAPI_ATTR void* DefaultAllocate(void*,
                                  size_t size,
                                  size_t alignment,
@@ -901,21 +935,14 @@
     return result;
 }
 
-bool QueryPresentationProperties(
+void QueryPresentationProperties(
     VkPhysicalDevice physicalDevice,
-    VkPhysicalDevicePresentationPropertiesANDROID *presentation_properties) {
-    const InstanceData& data = GetData(physicalDevice);
-
-    // GPDP2 must be present and enabled on the instance.
-    if (!data.driver.GetPhysicalDeviceProperties2KHR &&
-        !data.driver.GetPhysicalDeviceProperties2)
-        return false;
-
+    VkPhysicalDevicePresentationPropertiesANDROID* presentation_properties) {
     // Request the android-specific presentation properties via GPDP2
-    VkPhysicalDeviceProperties2KHR properties = {
-        VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PROPERTIES_2_KHR,
+    VkPhysicalDeviceProperties2 properties = {
+        VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PROPERTIES_2,
         presentation_properties,
-        {}
+        {},
     };
 
 #pragma clang diagnostic push
@@ -926,14 +953,7 @@
     presentation_properties->pNext = nullptr;
     presentation_properties->sharedImage = VK_FALSE;
 
-    if (data.driver.GetPhysicalDeviceProperties2KHR) {
-        data.driver.GetPhysicalDeviceProperties2KHR(physicalDevice,
-                                                    &properties);
-    } else {
-        data.driver.GetPhysicalDeviceProperties2(physicalDevice, &properties);
-    }
-
-    return true;
+    GetPhysicalDeviceProperties2(physicalDevice, &properties);
 }
 
 VkResult EnumerateDeviceExtensionProperties(
@@ -955,8 +975,8 @@
     }
 
     VkPhysicalDevicePresentationPropertiesANDROID presentation_properties;
-    if (QueryPresentationProperties(physicalDevice, &presentation_properties) &&
-        presentation_properties.sharedImage) {
+    QueryPresentationProperties(physicalDevice, &presentation_properties);
+    if (presentation_properties.sharedImage) {
         loader_extensions.push_back({
             VK_KHR_SHARED_PRESENTABLE_IMAGE_EXTENSION_NAME,
             VK_KHR_SHARED_PRESENTABLE_IMAGE_SPEC_VERSION});
@@ -1027,49 +1047,32 @@
     const VkAllocationCallbacks& data_allocator =
         (pAllocator) ? *pAllocator : GetDefaultAllocator();
 
-    CreateInfoWrapper wrapper(*pCreateInfo, data_allocator);
-    VkResult result = wrapper.Validate();
-    if (result != VK_SUCCESS)
-        return result;
-
-    ATRACE_BEGIN("AllocateInstanceData");
-    InstanceData* data = AllocateInstanceData(data_allocator);
-    ATRACE_END();
-    if (!data)
-        return VK_ERROR_OUT_OF_HOST_MEMORY;
-
-    data->hook_extensions |= wrapper.GetHookExtensions();
-
-    ATRACE_BEGIN("autoDowngradeApiVersion");
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wold-style-cast"
-    uint32_t api_version = ((pCreateInfo->pApplicationInfo)
-                                ? pCreateInfo->pApplicationInfo->apiVersion
-                                : VK_API_VERSION_1_0);
-    uint32_t api_major_version = VK_VERSION_MAJOR(api_version);
-    uint32_t api_minor_version = VK_VERSION_MINOR(api_version);
-    uint32_t icd_api_version;
+    VkResult result = VK_SUCCESS;
+    uint32_t icd_api_version = VK_API_VERSION_1_0;
     PFN_vkEnumerateInstanceVersion pfn_enumerate_instance_version =
         reinterpret_cast<PFN_vkEnumerateInstanceVersion>(
             Hal::Device().GetInstanceProcAddr(nullptr,
                                               "vkEnumerateInstanceVersion"));
-    if (!pfn_enumerate_instance_version) {
-        icd_api_version = VK_API_VERSION_1_0;
-    } else {
+    if (pfn_enumerate_instance_version) {
         ATRACE_BEGIN("pfn_enumerate_instance_version");
         result = (*pfn_enumerate_instance_version)(&icd_api_version);
         ATRACE_END();
-    }
-    uint32_t icd_api_major_version = VK_VERSION_MAJOR(icd_api_version);
-    uint32_t icd_api_minor_version = VK_VERSION_MINOR(icd_api_version);
+        if (result != VK_SUCCESS)
+            return result;
 
-    if ((icd_api_major_version == 1) && (icd_api_minor_version == 0) &&
-        ((api_major_version > 1) || (api_minor_version > 0))) {
-        api_version = VK_API_VERSION_1_0;
-        wrapper.DowngradeApiVersion();
+        icd_api_version ^= VK_VERSION_PATCH(icd_api_version);
     }
-#pragma clang diagnostic pop
-    ATRACE_END();
+
+    CreateInfoWrapper wrapper(*pCreateInfo, icd_api_version, data_allocator);
+    result = wrapper.Validate();
+    if (result != VK_SUCCESS)
+        return result;
+
+    InstanceData* data = AllocateInstanceData(data_allocator);
+    if (!data)
+        return VK_ERROR_OUT_OF_HOST_MEMORY;
+
+    data->hook_extensions |= wrapper.GetHookExtensions();
 
     // call into the driver
     VkInstance instance;
@@ -1133,7 +1136,16 @@
     const VkAllocationCallbacks& data_allocator =
         (pAllocator) ? *pAllocator : instance_data.allocator;
 
-    CreateInfoWrapper wrapper(physicalDevice, *pCreateInfo, data_allocator);
+    VkPhysicalDeviceProperties properties;
+    ATRACE_BEGIN("driver.GetPhysicalDeviceProperties");
+    instance_data.driver.GetPhysicalDeviceProperties(physicalDevice,
+                                                     &properties);
+    ATRACE_END();
+
+    CreateInfoWrapper wrapper(
+        physicalDevice, *pCreateInfo,
+        properties.apiVersion ^ VK_VERSION_PATCH(properties.apiVersion),
+        data_allocator);
     VkResult result = wrapper.Validate();
     if (result != VK_SUCCESS)
         return result;
@@ -1145,13 +1157,6 @@
     if (!data)
         return VK_ERROR_OUT_OF_HOST_MEMORY;
 
-    VkPhysicalDeviceProperties properties;
-    ATRACE_BEGIN("driver.GetPhysicalDeviceProperties");
-    instance_data.driver.GetPhysicalDeviceProperties(physicalDevice,
-                                                     &properties);
-    ATRACE_END();
-
-    wrapper.UpgradeDeviceCoreApiVersion(properties.apiVersion);
     data->hook_extensions |= wrapper.GetHookExtensions();
 
     // call into the driver
@@ -1248,7 +1253,8 @@
     VkResult result = VK_SUCCESS;
     const auto& data = GetData(instance);
 
-    if (!data.driver.EnumeratePhysicalDeviceGroups) {
+    if (!data.driver.EnumeratePhysicalDeviceGroups &&
+        !data.driver.EnumeratePhysicalDeviceGroupsKHR) {
         uint32_t device_count = 0;
         result = EnumeratePhysicalDevices(instance, &device_count, nullptr);
         if (result < 0)
@@ -1280,9 +1286,15 @@
             pPhysicalDeviceGroupProperties[i].subsetAllocation = 0;
         }
     } else {
-        result = data.driver.EnumeratePhysicalDeviceGroups(
-            instance, pPhysicalDeviceGroupCount,
-            pPhysicalDeviceGroupProperties);
+        if (data.driver.EnumeratePhysicalDeviceGroups) {
+            result = data.driver.EnumeratePhysicalDeviceGroups(
+                instance, pPhysicalDeviceGroupCount,
+                pPhysicalDeviceGroupProperties);
+        } else {
+            result = data.driver.EnumeratePhysicalDeviceGroupsKHR(
+                instance, pPhysicalDeviceGroupCount,
+                pPhysicalDeviceGroupProperties);
+        }
         if ((result == VK_SUCCESS || result == VK_INCOMPLETE) &&
             *pPhysicalDeviceGroupCount && pPhysicalDeviceGroupProperties) {
             for (uint32_t i = 0; i < *pPhysicalDeviceGroupCount; i++) {
@@ -1323,10 +1335,10 @@
     if (*pQueue != VK_NULL_HANDLE) SetData(*pQueue, data);
 }
 
-VKAPI_ATTR VkResult
-AllocateCommandBuffers(VkDevice device,
-                       const VkCommandBufferAllocateInfo* pAllocateInfo,
-                       VkCommandBuffer* pCommandBuffers) {
+VkResult AllocateCommandBuffers(
+    VkDevice device,
+    const VkCommandBufferAllocateInfo* pAllocateInfo,
+    VkCommandBuffer* pCommandBuffers) {
     ATRACE_CALL();
 
     const auto& data = GetData(device);
@@ -1341,10 +1353,10 @@
     return result;
 }
 
-VKAPI_ATTR VkResult QueueSubmit(VkQueue queue,
-                                uint32_t submitCount,
-                                const VkSubmitInfo* pSubmits,
-                                VkFence fence) {
+VkResult QueueSubmit(VkQueue queue,
+                     uint32_t submitCount,
+                     const VkSubmitInfo* pSubmits,
+                     VkFence fence) {
     ATRACE_CALL();
 
     const auto& data = GetData(queue);
@@ -1352,5 +1364,198 @@
     return data.driver.QueueSubmit(queue, submitCount, pSubmits, fence);
 }
 
+void GetPhysicalDeviceFeatures2(VkPhysicalDevice physicalDevice,
+                                VkPhysicalDeviceFeatures2* pFeatures) {
+    ATRACE_CALL();
+
+    const auto& driver = GetData(physicalDevice).driver;
+
+    if (driver.GetPhysicalDeviceFeatures2) {
+        driver.GetPhysicalDeviceFeatures2(physicalDevice, pFeatures);
+        return;
+    }
+
+    driver.GetPhysicalDeviceFeatures2KHR(physicalDevice, pFeatures);
+}
+
+void GetPhysicalDeviceProperties2(VkPhysicalDevice physicalDevice,
+                                  VkPhysicalDeviceProperties2* pProperties) {
+    ATRACE_CALL();
+
+    const auto& driver = GetData(physicalDevice).driver;
+
+    if (driver.GetPhysicalDeviceProperties2) {
+        driver.GetPhysicalDeviceProperties2(physicalDevice, pProperties);
+        return;
+    }
+
+    driver.GetPhysicalDeviceProperties2KHR(physicalDevice, pProperties);
+}
+
+void GetPhysicalDeviceFormatProperties2(
+    VkPhysicalDevice physicalDevice,
+    VkFormat format,
+    VkFormatProperties2* pFormatProperties) {
+    ATRACE_CALL();
+
+    const auto& driver = GetData(physicalDevice).driver;
+
+    if (driver.GetPhysicalDeviceFormatProperties2) {
+        driver.GetPhysicalDeviceFormatProperties2(physicalDevice, format,
+                                                  pFormatProperties);
+        return;
+    }
+
+    driver.GetPhysicalDeviceFormatProperties2KHR(physicalDevice, format,
+                                                 pFormatProperties);
+}
+
+VkResult GetPhysicalDeviceImageFormatProperties2(
+    VkPhysicalDevice physicalDevice,
+    const VkPhysicalDeviceImageFormatInfo2* pImageFormatInfo,
+    VkImageFormatProperties2* pImageFormatProperties) {
+    ATRACE_CALL();
+
+    const auto& driver = GetData(physicalDevice).driver;
+
+    if (driver.GetPhysicalDeviceImageFormatProperties2) {
+        return driver.GetPhysicalDeviceImageFormatProperties2(
+            physicalDevice, pImageFormatInfo, pImageFormatProperties);
+    }
+
+    return driver.GetPhysicalDeviceImageFormatProperties2KHR(
+        physicalDevice, pImageFormatInfo, pImageFormatProperties);
+}
+
+void GetPhysicalDeviceQueueFamilyProperties2(
+    VkPhysicalDevice physicalDevice,
+    uint32_t* pQueueFamilyPropertyCount,
+    VkQueueFamilyProperties2* pQueueFamilyProperties) {
+    ATRACE_CALL();
+
+    const auto& driver = GetData(physicalDevice).driver;
+
+    if (driver.GetPhysicalDeviceQueueFamilyProperties2) {
+        driver.GetPhysicalDeviceQueueFamilyProperties2(
+            physicalDevice, pQueueFamilyPropertyCount, pQueueFamilyProperties);
+        return;
+    }
+
+    driver.GetPhysicalDeviceQueueFamilyProperties2KHR(
+        physicalDevice, pQueueFamilyPropertyCount, pQueueFamilyProperties);
+}
+
+void GetPhysicalDeviceMemoryProperties2(
+    VkPhysicalDevice physicalDevice,
+    VkPhysicalDeviceMemoryProperties2* pMemoryProperties) {
+    ATRACE_CALL();
+
+    const auto& driver = GetData(physicalDevice).driver;
+
+    if (driver.GetPhysicalDeviceMemoryProperties2) {
+        driver.GetPhysicalDeviceMemoryProperties2(physicalDevice,
+                                                  pMemoryProperties);
+        return;
+    }
+
+    driver.GetPhysicalDeviceMemoryProperties2KHR(physicalDevice,
+                                                 pMemoryProperties);
+}
+
+void GetPhysicalDeviceSparseImageFormatProperties2(
+    VkPhysicalDevice physicalDevice,
+    const VkPhysicalDeviceSparseImageFormatInfo2* pFormatInfo,
+    uint32_t* pPropertyCount,
+    VkSparseImageFormatProperties2* pProperties) {
+    ATRACE_CALL();
+
+    const auto& driver = GetData(physicalDevice).driver;
+
+    if (driver.GetPhysicalDeviceSparseImageFormatProperties2) {
+        driver.GetPhysicalDeviceSparseImageFormatProperties2(
+            physicalDevice, pFormatInfo, pPropertyCount, pProperties);
+        return;
+    }
+
+    driver.GetPhysicalDeviceSparseImageFormatProperties2KHR(
+        physicalDevice, pFormatInfo, pPropertyCount, pProperties);
+}
+
+void GetPhysicalDeviceExternalBufferProperties(
+    VkPhysicalDevice physicalDevice,
+    const VkPhysicalDeviceExternalBufferInfo* pExternalBufferInfo,
+    VkExternalBufferProperties* pExternalBufferProperties) {
+    ATRACE_CALL();
+
+    const auto& driver = GetData(physicalDevice).driver;
+
+    if (driver.GetPhysicalDeviceExternalBufferProperties) {
+        driver.GetPhysicalDeviceExternalBufferProperties(
+            physicalDevice, pExternalBufferInfo, pExternalBufferProperties);
+        return;
+    }
+
+    if (driver.GetPhysicalDeviceExternalBufferPropertiesKHR) {
+        driver.GetPhysicalDeviceExternalBufferPropertiesKHR(
+            physicalDevice, pExternalBufferInfo, pExternalBufferProperties);
+        return;
+    }
+
+    memset(&pExternalBufferProperties->externalMemoryProperties, 0,
+           sizeof(VkExternalMemoryProperties));
+}
+
+void GetPhysicalDeviceExternalSemaphoreProperties(
+    VkPhysicalDevice physicalDevice,
+    const VkPhysicalDeviceExternalSemaphoreInfo* pExternalSemaphoreInfo,
+    VkExternalSemaphoreProperties* pExternalSemaphoreProperties) {
+    ATRACE_CALL();
+
+    const auto& driver = GetData(physicalDevice).driver;
+
+    if (driver.GetPhysicalDeviceExternalSemaphoreProperties) {
+        driver.GetPhysicalDeviceExternalSemaphoreProperties(
+            physicalDevice, pExternalSemaphoreInfo,
+            pExternalSemaphoreProperties);
+        return;
+    }
+
+    if (driver.GetPhysicalDeviceExternalSemaphorePropertiesKHR) {
+        driver.GetPhysicalDeviceExternalSemaphorePropertiesKHR(
+            physicalDevice, pExternalSemaphoreInfo,
+            pExternalSemaphoreProperties);
+        return;
+    }
+
+    pExternalSemaphoreProperties->exportFromImportedHandleTypes = 0;
+    pExternalSemaphoreProperties->compatibleHandleTypes = 0;
+    pExternalSemaphoreProperties->externalSemaphoreFeatures = 0;
+}
+
+void GetPhysicalDeviceExternalFenceProperties(
+    VkPhysicalDevice physicalDevice,
+    const VkPhysicalDeviceExternalFenceInfo* pExternalFenceInfo,
+    VkExternalFenceProperties* pExternalFenceProperties) {
+    ATRACE_CALL();
+
+    const auto& driver = GetData(physicalDevice).driver;
+
+    if (driver.GetPhysicalDeviceExternalFenceProperties) {
+        driver.GetPhysicalDeviceExternalFenceProperties(
+            physicalDevice, pExternalFenceInfo, pExternalFenceProperties);
+        return;
+    }
+
+    if (driver.GetPhysicalDeviceExternalFencePropertiesKHR) {
+        driver.GetPhysicalDeviceExternalFencePropertiesKHR(
+            physicalDevice, pExternalFenceInfo, pExternalFenceProperties);
+        return;
+    }
+
+    pExternalFenceProperties->exportFromImportedHandleTypes = 0;
+    pExternalFenceProperties->compatibleHandleTypes = 0;
+    pExternalFenceProperties->externalFenceFeatures = 0;
+}
+
 }  // namespace driver
 }  // namespace vulkan
diff --git a/vulkan/libvulkan/driver.h b/vulkan/libvulkan/driver.h
index 23c717c..14c516b 100644
--- a/vulkan/libvulkan/driver.h
+++ b/vulkan/libvulkan/driver.h
@@ -103,30 +103,95 @@
 bool OpenHAL();
 const VkAllocationCallbacks& GetDefaultAllocator();
 
-bool QueryPresentationProperties(
+void QueryPresentationProperties(
     VkPhysicalDevice physicalDevice,
-    VkPhysicalDevicePresentationPropertiesANDROID *presentation_properties);
+    VkPhysicalDevicePresentationPropertiesANDROID* presentation_properties);
 
-// clang-format off
-VKAPI_ATTR PFN_vkVoidFunction GetInstanceProcAddr(VkInstance instance, const char* pName);
-VKAPI_ATTR PFN_vkVoidFunction GetDeviceProcAddr(VkDevice device, const char* pName);
-VKAPI_ATTR VkResult EnumerateInstanceExtensionProperties(const char* pLayerName, uint32_t* pPropertyCount, VkExtensionProperties* pProperties);
-
-VKAPI_ATTR VkResult EnumerateDeviceExtensionProperties(VkPhysicalDevice physicalDevice, const char* pLayerName, uint32_t* pPropertyCount, VkExtensionProperties* pProperties);
-
-VKAPI_ATTR VkResult CreateInstance(const VkInstanceCreateInfo* pCreateInfo, const VkAllocationCallbacks* pAllocator, VkInstance* pInstance);
-VKAPI_ATTR void DestroyInstance(VkInstance instance, const VkAllocationCallbacks* pAllocator);
-VKAPI_ATTR VkResult CreateDevice(VkPhysicalDevice physicalDevice, const VkDeviceCreateInfo* pCreateInfo, const VkAllocationCallbacks* pAllocator, VkDevice* pDevice);
-VKAPI_ATTR void DestroyDevice(VkDevice device, const VkAllocationCallbacks* pAllocator);
-
-VKAPI_ATTR VkResult EnumeratePhysicalDevices(VkInstance instance, uint32_t* pPhysicalDeviceCount, VkPhysicalDevice* pPhysicalDevices);
-VKAPI_ATTR VkResult EnumeratePhysicalDeviceGroups(VkInstance instance, uint32_t* pPhysicalDeviceGroupCount, VkPhysicalDeviceGroupProperties* pPhysicalDeviceGroupProperties);
-
-VKAPI_ATTR void GetDeviceQueue(VkDevice device, uint32_t queueFamilyIndex, uint32_t queueIndex, VkQueue* pQueue);
-VKAPI_ATTR void GetDeviceQueue2(VkDevice device, const VkDeviceQueueInfo2* pQueueInfo, VkQueue* pQueue);
-VKAPI_ATTR VkResult AllocateCommandBuffers(VkDevice device, const VkCommandBufferAllocateInfo* pAllocateInfo, VkCommandBuffer* pCommandBuffers);
-VKAPI_ATTR VkResult QueueSubmit(VkQueue queue, uint32_t submitCount, const VkSubmitInfo* pSubmits, VkFence fence);
-// clang-format on
+VKAPI_ATTR PFN_vkVoidFunction GetInstanceProcAddr(VkInstance instance,
+                                                  const char* pName);
+VKAPI_ATTR PFN_vkVoidFunction GetDeviceProcAddr(VkDevice device,
+                                                const char* pName);
+VKAPI_ATTR VkResult
+EnumerateInstanceExtensionProperties(const char* pLayerName,
+                                     uint32_t* pPropertyCount,
+                                     VkExtensionProperties* pProperties);
+VKAPI_ATTR VkResult
+EnumerateDeviceExtensionProperties(VkPhysicalDevice physicalDevice,
+                                   const char* pLayerName,
+                                   uint32_t* pPropertyCount,
+                                   VkExtensionProperties* pProperties);
+VKAPI_ATTR VkResult CreateInstance(const VkInstanceCreateInfo* pCreateInfo,
+                                   const VkAllocationCallbacks* pAllocator,
+                                   VkInstance* pInstance);
+VKAPI_ATTR void DestroyInstance(VkInstance instance,
+                                const VkAllocationCallbacks* pAllocator);
+VKAPI_ATTR VkResult CreateDevice(VkPhysicalDevice physicalDevice,
+                                 const VkDeviceCreateInfo* pCreateInfo,
+                                 const VkAllocationCallbacks* pAllocator,
+                                 VkDevice* pDevice);
+VKAPI_ATTR void DestroyDevice(VkDevice device,
+                              const VkAllocationCallbacks* pAllocator);
+VKAPI_ATTR VkResult
+EnumeratePhysicalDevices(VkInstance instance,
+                         uint32_t* pPhysicalDeviceCount,
+                         VkPhysicalDevice* pPhysicalDevices);
+VKAPI_ATTR VkResult EnumeratePhysicalDeviceGroups(
+    VkInstance instance,
+    uint32_t* pPhysicalDeviceGroupCount,
+    VkPhysicalDeviceGroupProperties* pPhysicalDeviceGroupProperties);
+VKAPI_ATTR void GetDeviceQueue(VkDevice device,
+                               uint32_t queueFamilyIndex,
+                               uint32_t queueIndex,
+                               VkQueue* pQueue);
+VKAPI_ATTR void GetDeviceQueue2(VkDevice device,
+                                const VkDeviceQueueInfo2* pQueueInfo,
+                                VkQueue* pQueue);
+VKAPI_ATTR VkResult
+AllocateCommandBuffers(VkDevice device,
+                       const VkCommandBufferAllocateInfo* pAllocateInfo,
+                       VkCommandBuffer* pCommandBuffers);
+VKAPI_ATTR VkResult QueueSubmit(VkQueue queue,
+                                uint32_t submitCount,
+                                const VkSubmitInfo* pSubmits,
+                                VkFence fence);
+VKAPI_ATTR void GetPhysicalDeviceFeatures2(
+    VkPhysicalDevice physicalDevice,
+    VkPhysicalDeviceFeatures2* pFeatures);
+VKAPI_ATTR void GetPhysicalDeviceProperties2(
+    VkPhysicalDevice physicalDevice,
+    VkPhysicalDeviceProperties2* pProperties);
+VKAPI_ATTR void GetPhysicalDeviceFormatProperties2(
+    VkPhysicalDevice physicalDevice,
+    VkFormat format,
+    VkFormatProperties2* pFormatProperties);
+VKAPI_ATTR VkResult GetPhysicalDeviceImageFormatProperties2(
+    VkPhysicalDevice physicalDevice,
+    const VkPhysicalDeviceImageFormatInfo2* pImageFormatInfo,
+    VkImageFormatProperties2* pImageFormatProperties);
+VKAPI_ATTR void GetPhysicalDeviceQueueFamilyProperties2(
+    VkPhysicalDevice physicalDevice,
+    uint32_t* pQueueFamilyPropertyCount,
+    VkQueueFamilyProperties2* pQueueFamilyProperties);
+VKAPI_ATTR void GetPhysicalDeviceMemoryProperties2(
+    VkPhysicalDevice physicalDevice,
+    VkPhysicalDeviceMemoryProperties2* pMemoryProperties);
+VKAPI_ATTR void GetPhysicalDeviceSparseImageFormatProperties2(
+    VkPhysicalDevice physicalDevice,
+    const VkPhysicalDeviceSparseImageFormatInfo2* pFormatInfo,
+    uint32_t* pPropertyCount,
+    VkSparseImageFormatProperties2* pProperties);
+VKAPI_ATTR void GetPhysicalDeviceExternalBufferProperties(
+    VkPhysicalDevice physicalDevice,
+    const VkPhysicalDeviceExternalBufferInfo* pExternalBufferInfo,
+    VkExternalBufferProperties* pExternalBufferProperties);
+VKAPI_ATTR void GetPhysicalDeviceExternalSemaphoreProperties(
+    VkPhysicalDevice physicalDevice,
+    const VkPhysicalDeviceExternalSemaphoreInfo* pExternalSemaphoreInfo,
+    VkExternalSemaphoreProperties* pExternalSemaphoreProperties);
+VKAPI_ATTR void GetPhysicalDeviceExternalFenceProperties(
+    VkPhysicalDevice physicalDevice,
+    const VkPhysicalDeviceExternalFenceInfo* pExternalFenceInfo,
+    VkExternalFenceProperties* pExternalFenceProperties);
 
 template <typename DispatchableType>
 void StaticAssertDispatchable(DispatchableType) {
diff --git a/vulkan/libvulkan/driver_gen.cpp b/vulkan/libvulkan/driver_gen.cpp
index 52205e9..5f37a50 100644
--- a/vulkan/libvulkan/driver_gen.cpp
+++ b/vulkan/libvulkan/driver_gen.cpp
@@ -363,6 +363,55 @@
         reinterpret_cast<PFN_vkVoidFunction>(checkedGetPastPresentationTimingGOOGLE),
     },
     {
+        "vkGetPhysicalDeviceExternalBufferProperties",
+        ProcHook::INSTANCE,
+        ProcHook::EXTENSION_CORE_1_1,
+        reinterpret_cast<PFN_vkVoidFunction>(GetPhysicalDeviceExternalBufferProperties),
+        nullptr,
+    },
+    {
+        "vkGetPhysicalDeviceExternalFenceProperties",
+        ProcHook::INSTANCE,
+        ProcHook::EXTENSION_CORE_1_1,
+        reinterpret_cast<PFN_vkVoidFunction>(GetPhysicalDeviceExternalFenceProperties),
+        nullptr,
+    },
+    {
+        "vkGetPhysicalDeviceExternalSemaphoreProperties",
+        ProcHook::INSTANCE,
+        ProcHook::EXTENSION_CORE_1_1,
+        reinterpret_cast<PFN_vkVoidFunction>(GetPhysicalDeviceExternalSemaphoreProperties),
+        nullptr,
+    },
+    {
+        "vkGetPhysicalDeviceFeatures2",
+        ProcHook::INSTANCE,
+        ProcHook::EXTENSION_CORE_1_1,
+        reinterpret_cast<PFN_vkVoidFunction>(GetPhysicalDeviceFeatures2),
+        nullptr,
+    },
+    {
+        "vkGetPhysicalDeviceFormatProperties2",
+        ProcHook::INSTANCE,
+        ProcHook::EXTENSION_CORE_1_1,
+        reinterpret_cast<PFN_vkVoidFunction>(GetPhysicalDeviceFormatProperties2),
+        nullptr,
+    },
+    {
+        "vkGetPhysicalDeviceImageFormatProperties2",
+        ProcHook::INSTANCE,
+        ProcHook::EXTENSION_CORE_1_1,
+        reinterpret_cast<PFN_vkVoidFunction>(GetPhysicalDeviceImageFormatProperties2),
+        nullptr,
+    },
+    {
+        "vkGetPhysicalDeviceMemoryProperties2",
+        ProcHook::INSTANCE,
+        ProcHook::EXTENSION_CORE_1_1,
+        reinterpret_cast<PFN_vkVoidFunction>(GetPhysicalDeviceMemoryProperties2),
+        nullptr,
+    },
+    {
         "vkGetPhysicalDevicePresentRectanglesKHR",
         ProcHook::INSTANCE,
         ProcHook::KHR_swapchain,
@@ -370,6 +419,27 @@
         nullptr,
     },
     {
+        "vkGetPhysicalDeviceProperties2",
+        ProcHook::INSTANCE,
+        ProcHook::EXTENSION_CORE_1_1,
+        reinterpret_cast<PFN_vkVoidFunction>(GetPhysicalDeviceProperties2),
+        nullptr,
+    },
+    {
+        "vkGetPhysicalDeviceQueueFamilyProperties2",
+        ProcHook::INSTANCE,
+        ProcHook::EXTENSION_CORE_1_1,
+        reinterpret_cast<PFN_vkVoidFunction>(GetPhysicalDeviceQueueFamilyProperties2),
+        nullptr,
+    },
+    {
+        "vkGetPhysicalDeviceSparseImageFormatProperties2",
+        ProcHook::INSTANCE,
+        ProcHook::EXTENSION_CORE_1_1,
+        reinterpret_cast<PFN_vkVoidFunction>(GetPhysicalDeviceSparseImageFormatProperties2),
+        nullptr,
+    },
+    {
         "vkGetPhysicalDeviceSurfaceCapabilities2KHR",
         ProcHook::INSTANCE,
         ProcHook::KHR_get_surface_capabilities2,
@@ -480,10 +550,9 @@
 }  // namespace
 
 const ProcHook* GetProcHook(const char* name) {
-    const auto& begin = g_proc_hooks;
-    const auto& end =
-        g_proc_hooks + sizeof(g_proc_hooks) / sizeof(g_proc_hooks[0]);
-    const auto hook = std::lower_bound(
+    auto begin = std::cbegin(g_proc_hooks);
+    auto end = std::cend(g_proc_hooks);
+    auto hook = std::lower_bound(
         begin, end, name,
         [](const ProcHook& e, const char* n) { return strcmp(e.name, n) < 0; });
     return (hook < end && strcmp(hook->name, name) == 0) ? hook : nullptr;
@@ -505,6 +574,10 @@
     if (strcmp(name, "VK_ANDROID_external_memory_android_hardware_buffer") == 0) return ProcHook::ANDROID_external_memory_android_hardware_buffer;
     if (strcmp(name, "VK_KHR_bind_memory2") == 0) return ProcHook::KHR_bind_memory2;
     if (strcmp(name, "VK_KHR_get_physical_device_properties2") == 0) return ProcHook::KHR_get_physical_device_properties2;
+    if (strcmp(name, "VK_KHR_device_group_creation") == 0) return ProcHook::KHR_device_group_creation;
+    if (strcmp(name, "VK_KHR_external_memory_capabilities") == 0) return ProcHook::KHR_external_memory_capabilities;
+    if (strcmp(name, "VK_KHR_external_semaphore_capabilities") == 0) return ProcHook::KHR_external_semaphore_capabilities;
+    if (strcmp(name, "VK_KHR_external_fence_capabilities") == 0) return ProcHook::KHR_external_fence_capabilities;
     // clang-format on
     return ProcHook::EXTENSION_UNKNOWN;
 }
@@ -543,9 +616,28 @@
     INIT_PROC_EXT(EXT_debug_report, true, instance, CreateDebugReportCallbackEXT);
     INIT_PROC_EXT(EXT_debug_report, true, instance, DestroyDebugReportCallbackEXT);
     INIT_PROC_EXT(EXT_debug_report, true, instance, DebugReportMessageEXT);
+    INIT_PROC(false, instance, GetPhysicalDeviceFeatures2);
+    INIT_PROC_EXT(KHR_get_physical_device_properties2, true, instance, GetPhysicalDeviceFeatures2KHR);
     INIT_PROC(false, instance, GetPhysicalDeviceProperties2);
     INIT_PROC_EXT(KHR_get_physical_device_properties2, true, instance, GetPhysicalDeviceProperties2KHR);
+    INIT_PROC(false, instance, GetPhysicalDeviceFormatProperties2);
+    INIT_PROC_EXT(KHR_get_physical_device_properties2, true, instance, GetPhysicalDeviceFormatProperties2KHR);
+    INIT_PROC(false, instance, GetPhysicalDeviceImageFormatProperties2);
+    INIT_PROC_EXT(KHR_get_physical_device_properties2, true, instance, GetPhysicalDeviceImageFormatProperties2KHR);
+    INIT_PROC(false, instance, GetPhysicalDeviceQueueFamilyProperties2);
+    INIT_PROC_EXT(KHR_get_physical_device_properties2, true, instance, GetPhysicalDeviceQueueFamilyProperties2KHR);
+    INIT_PROC(false, instance, GetPhysicalDeviceMemoryProperties2);
+    INIT_PROC_EXT(KHR_get_physical_device_properties2, true, instance, GetPhysicalDeviceMemoryProperties2KHR);
+    INIT_PROC(false, instance, GetPhysicalDeviceSparseImageFormatProperties2);
+    INIT_PROC_EXT(KHR_get_physical_device_properties2, true, instance, GetPhysicalDeviceSparseImageFormatProperties2KHR);
+    INIT_PROC(false, instance, GetPhysicalDeviceExternalBufferProperties);
+    INIT_PROC_EXT(KHR_external_memory_capabilities, true, instance, GetPhysicalDeviceExternalBufferPropertiesKHR);
+    INIT_PROC(false, instance, GetPhysicalDeviceExternalSemaphoreProperties);
+    INIT_PROC_EXT(KHR_external_semaphore_capabilities, true, instance, GetPhysicalDeviceExternalSemaphorePropertiesKHR);
+    INIT_PROC(false, instance, GetPhysicalDeviceExternalFenceProperties);
+    INIT_PROC_EXT(KHR_external_fence_capabilities, true, instance, GetPhysicalDeviceExternalFencePropertiesKHR);
     INIT_PROC(false, instance, EnumeratePhysicalDeviceGroups);
+    INIT_PROC_EXT(KHR_device_group_creation, true, instance, EnumeratePhysicalDeviceGroupsKHR);
     // clang-format on
 
     return success;
@@ -577,5 +669,53 @@
     return success;
 }
 
+const std::pair<const char*, uint32_t> g_promoted_instance_extensions[] = {
+    // clang-format off
+    std::make_pair("VK_KHR_device_group_creation", VK_API_VERSION_1_1),
+    std::make_pair("VK_KHR_external_fence_capabilities", VK_API_VERSION_1_1),
+    std::make_pair("VK_KHR_external_memory_capabilities", VK_API_VERSION_1_1),
+    std::make_pair("VK_KHR_external_semaphore_capabilities", VK_API_VERSION_1_1),
+    std::make_pair("VK_KHR_get_physical_device_properties2", VK_API_VERSION_1_1),
+    // clang-format on
+};
+
+std::optional<uint32_t> GetInstanceExtensionPromotedVersion(const char* name) {
+    auto begin = std::cbegin(g_promoted_instance_extensions);
+    auto end = std::cend(g_promoted_instance_extensions);
+    auto iter =
+        std::lower_bound(begin, end, name,
+                         [](const std::pair<const char*, uint32_t>& e,
+                            const char* n) { return strcmp(e.first, n) < 0; });
+    return (iter < end && strcmp(iter->first, name) == 0)
+               ? std::optional<uint32_t>(iter->second)
+               : std::nullopt;
+}
+
+uint32_t CountPromotedInstanceExtensions(uint32_t begin_version,
+                                         uint32_t end_version) {
+    auto begin = std::cbegin(g_promoted_instance_extensions);
+    auto end = std::cend(g_promoted_instance_extensions);
+    uint32_t count = 0;
+
+    for (auto iter = begin; iter != end; iter++)
+        if (iter->second > begin_version && iter->second <= end_version)
+            count++;
+
+    return count;
+}
+
+std::vector<const char*> GetPromotedInstanceExtensions(uint32_t begin_version,
+                                                       uint32_t end_version) {
+    auto begin = std::cbegin(g_promoted_instance_extensions);
+    auto end = std::cend(g_promoted_instance_extensions);
+    std::vector<const char*> extensions;
+
+    for (auto iter = begin; iter != end; iter++)
+        if (iter->second > begin_version && iter->second <= end_version)
+            extensions.emplace_back(iter->first);
+
+    return extensions;
+}
+
 }  // namespace driver
 }  // namespace vulkan
diff --git a/vulkan/libvulkan/driver_gen.h b/vulkan/libvulkan/driver_gen.h
index 43c4d14..1aba674 100644
--- a/vulkan/libvulkan/driver_gen.h
+++ b/vulkan/libvulkan/driver_gen.h
@@ -23,6 +23,8 @@
 #include <vulkan/vulkan.h>
 
 #include <bitset>
+#include <optional>
+#include <vector>
 
 namespace vulkan {
 namespace driver {
@@ -48,6 +50,10 @@
         ANDROID_external_memory_android_hardware_buffer,
         KHR_bind_memory2,
         KHR_get_physical_device_properties2,
+        KHR_device_group_creation,
+        KHR_external_memory_capabilities,
+        KHR_external_semaphore_capabilities,
+        KHR_external_fence_capabilities,
 
         EXTENSION_CORE_1_0,
         EXTENSION_CORE_1_1,
@@ -74,9 +80,28 @@
     PFN_vkCreateDebugReportCallbackEXT CreateDebugReportCallbackEXT;
     PFN_vkDestroyDebugReportCallbackEXT DestroyDebugReportCallbackEXT;
     PFN_vkDebugReportMessageEXT DebugReportMessageEXT;
+    PFN_vkGetPhysicalDeviceFeatures2 GetPhysicalDeviceFeatures2;
+    PFN_vkGetPhysicalDeviceFeatures2KHR GetPhysicalDeviceFeatures2KHR;
     PFN_vkGetPhysicalDeviceProperties2 GetPhysicalDeviceProperties2;
     PFN_vkGetPhysicalDeviceProperties2KHR GetPhysicalDeviceProperties2KHR;
+    PFN_vkGetPhysicalDeviceFormatProperties2 GetPhysicalDeviceFormatProperties2;
+    PFN_vkGetPhysicalDeviceFormatProperties2KHR GetPhysicalDeviceFormatProperties2KHR;
+    PFN_vkGetPhysicalDeviceImageFormatProperties2 GetPhysicalDeviceImageFormatProperties2;
+    PFN_vkGetPhysicalDeviceImageFormatProperties2KHR GetPhysicalDeviceImageFormatProperties2KHR;
+    PFN_vkGetPhysicalDeviceQueueFamilyProperties2 GetPhysicalDeviceQueueFamilyProperties2;
+    PFN_vkGetPhysicalDeviceQueueFamilyProperties2KHR GetPhysicalDeviceQueueFamilyProperties2KHR;
+    PFN_vkGetPhysicalDeviceMemoryProperties2 GetPhysicalDeviceMemoryProperties2;
+    PFN_vkGetPhysicalDeviceMemoryProperties2KHR GetPhysicalDeviceMemoryProperties2KHR;
+    PFN_vkGetPhysicalDeviceSparseImageFormatProperties2 GetPhysicalDeviceSparseImageFormatProperties2;
+    PFN_vkGetPhysicalDeviceSparseImageFormatProperties2KHR GetPhysicalDeviceSparseImageFormatProperties2KHR;
+    PFN_vkGetPhysicalDeviceExternalBufferProperties GetPhysicalDeviceExternalBufferProperties;
+    PFN_vkGetPhysicalDeviceExternalBufferPropertiesKHR GetPhysicalDeviceExternalBufferPropertiesKHR;
+    PFN_vkGetPhysicalDeviceExternalSemaphoreProperties GetPhysicalDeviceExternalSemaphoreProperties;
+    PFN_vkGetPhysicalDeviceExternalSemaphorePropertiesKHR GetPhysicalDeviceExternalSemaphorePropertiesKHR;
+    PFN_vkGetPhysicalDeviceExternalFenceProperties GetPhysicalDeviceExternalFenceProperties;
+    PFN_vkGetPhysicalDeviceExternalFencePropertiesKHR GetPhysicalDeviceExternalFencePropertiesKHR;
     PFN_vkEnumeratePhysicalDeviceGroups EnumeratePhysicalDeviceGroups;
+    PFN_vkEnumeratePhysicalDeviceGroupsKHR EnumeratePhysicalDeviceGroupsKHR;
     // clang-format on
 };
 
@@ -109,6 +134,12 @@
                      PFN_vkGetDeviceProcAddr get_proc,
                      const std::bitset<ProcHook::EXTENSION_COUNT>& extensions);
 
+std::optional<uint32_t> GetInstanceExtensionPromotedVersion(const char* name);
+uint32_t CountPromotedInstanceExtensions(uint32_t begin_version,
+                                         uint32_t end_version);
+std::vector<const char*> GetPromotedInstanceExtensions(uint32_t begin_version,
+                                                       uint32_t end_version);
+
 }  // namespace driver
 }  // namespace vulkan
 
diff --git a/vulkan/libvulkan/swapchain.cpp b/vulkan/libvulkan/swapchain.cpp
index c7ff640..0f791c9 100644
--- a/vulkan/libvulkan/swapchain.cpp
+++ b/vulkan/libvulkan/swapchain.cpp
@@ -881,11 +881,10 @@
     present_modes.push_back(VK_PRESENT_MODE_FIFO_KHR);
 
     VkPhysicalDevicePresentationPropertiesANDROID present_properties;
-    if (QueryPresentationProperties(pdev, &present_properties)) {
-        if (present_properties.sharedImage) {
-            present_modes.push_back(VK_PRESENT_MODE_SHARED_DEMAND_REFRESH_KHR);
-            present_modes.push_back(VK_PRESENT_MODE_SHARED_CONTINUOUS_REFRESH_KHR);
-        }
+    QueryPresentationProperties(pdev, &present_properties);
+    if (present_properties.sharedImage) {
+        present_modes.push_back(VK_PRESENT_MODE_SHARED_DEMAND_REFRESH_KHR);
+        present_modes.push_back(VK_PRESENT_MODE_SHARED_CONTINUOUS_REFRESH_KHR);
     }
 
     uint32_t num_modes = uint32_t(present_modes.size());
diff --git a/vulkan/scripts/driver_generator.py b/vulkan/scripts/driver_generator.py
index a64a702..6a73023 100644
--- a/vulkan/scripts/driver_generator.py
+++ b/vulkan/scripts/driver_generator.py
@@ -40,6 +40,10 @@
     'VK_ANDROID_external_memory_android_hardware_buffer',
     'VK_KHR_bind_memory2',
     'VK_KHR_get_physical_device_properties2',
+    'VK_KHR_device_group_creation',
+    'VK_KHR_external_memory_capabilities',
+    'VK_KHR_external_semaphore_capabilities',
+    'VK_KHR_external_fence_capabilities',
 ]
 
 # Functions needed at vulkan::driver level.
@@ -71,12 +75,41 @@
     'vkDestroyImage',
 
     'vkGetPhysicalDeviceProperties',
-    'vkGetPhysicalDeviceProperties2',
-    'vkGetPhysicalDeviceProperties2KHR',
 
     # VK_KHR_swapchain v69 requirement
     'vkBindImageMemory2',
     'vkBindImageMemory2KHR',
+
+    # For promoted VK_KHR_device_group_creation
+    'vkEnumeratePhysicalDeviceGroupsKHR',
+
+    # For promoted VK_KHR_get_physical_device_properties2
+    'vkGetPhysicalDeviceFeatures2',
+    'vkGetPhysicalDeviceFeatures2KHR',
+    'vkGetPhysicalDeviceProperties2',
+    'vkGetPhysicalDeviceProperties2KHR',
+    'vkGetPhysicalDeviceFormatProperties2',
+    'vkGetPhysicalDeviceFormatProperties2KHR',
+    'vkGetPhysicalDeviceImageFormatProperties2',
+    'vkGetPhysicalDeviceImageFormatProperties2KHR',
+    'vkGetPhysicalDeviceQueueFamilyProperties2',
+    'vkGetPhysicalDeviceQueueFamilyProperties2KHR',
+    'vkGetPhysicalDeviceMemoryProperties2',
+    'vkGetPhysicalDeviceMemoryProperties2KHR',
+    'vkGetPhysicalDeviceSparseImageFormatProperties2',
+    'vkGetPhysicalDeviceSparseImageFormatProperties2KHR',
+
+    # For promoted VK_KHR_external_memory_capabilities
+    'vkGetPhysicalDeviceExternalBufferProperties',
+    'vkGetPhysicalDeviceExternalBufferPropertiesKHR',
+
+    # For promoted VK_KHR_external_semaphore_capabilities
+    'vkGetPhysicalDeviceExternalSemaphoreProperties',
+    'vkGetPhysicalDeviceExternalSemaphorePropertiesKHR',
+
+    # For promoted VK_KHR_external_fence_capabilities
+    'vkGetPhysicalDeviceExternalFenceProperties',
+    'vkGetPhysicalDeviceExternalFencePropertiesKHR',
 ]
 
 # Functions intercepted at vulkan::driver level.
@@ -106,6 +139,24 @@
     # VK_KHR_swapchain v69 requirement
     'vkBindImageMemory2',
     'vkBindImageMemory2KHR',
+
+    # For promoted VK_KHR_get_physical_device_properties2
+    'vkGetPhysicalDeviceFeatures2',
+    'vkGetPhysicalDeviceProperties2',
+    'vkGetPhysicalDeviceFormatProperties2',
+    'vkGetPhysicalDeviceImageFormatProperties2',
+    'vkGetPhysicalDeviceQueueFamilyProperties2',
+    'vkGetPhysicalDeviceMemoryProperties2',
+    'vkGetPhysicalDeviceSparseImageFormatProperties2',
+
+    # For promoted VK_KHR_external_memory_capabilities
+    'vkGetPhysicalDeviceExternalBufferProperties',
+
+    # For promoted VK_KHR_external_semaphore_capabilities
+    'vkGetPhysicalDeviceExternalSemaphoreProperties',
+
+    # For promoted VK_KHR_external_fence_capabilities
+    'vkGetPhysicalDeviceExternalFenceProperties',
 ]
 
 
@@ -162,6 +213,8 @@
 #include <vulkan/vulkan.h>
 
 #include <bitset>
+#include <optional>
+#include <vector>
 
 namespace vulkan {
 namespace driver {
@@ -229,6 +282,12 @@
                      PFN_vkGetDeviceProcAddr get_proc,
                      const std::bitset<ProcHook::EXTENSION_COUNT>& extensions);
 
+std::optional<uint32_t> GetInstanceExtensionPromotedVersion(const char* name);
+uint32_t CountPromotedInstanceExtensions(uint32_t begin_version,
+                                         uint32_t end_version);
+std::vector<const char*> GetPromotedInstanceExtensions(uint32_t begin_version,
+                                                       uint32_t end_version);
+
 }  // namespace driver
 }  // namespace vulkan
 
@@ -464,10 +523,9 @@
 }  // namespace
 
 const ProcHook* GetProcHook(const char* name) {
-    const auto& begin = g_proc_hooks;
-    const auto& end =
-        g_proc_hooks + sizeof(g_proc_hooks) / sizeof(g_proc_hooks[0]);
-    const auto hook = std::lower_bound(
+    auto begin = std::cbegin(g_proc_hooks);
+    auto end = std::cend(g_proc_hooks);
+    auto hook = std::lower_bound(
         begin, end, name,
         [](const ProcHook& e, const char* n) { return strcmp(e.name, n) < 0; });
     return (hook < end && strcmp(hook->name, name) == 0) ? hook : nullptr;
@@ -539,6 +597,54 @@
     return success;
 }
 
+const std::pair<const char*, uint32_t> g_promoted_instance_extensions[] = {
+    // clang-format off\n""")
+
+    for key, value in sorted(gencom.promoted_inst_ext_dict.items()):
+      f.write(gencom.indent(1) + 'std::make_pair("' + key + '", ' + value + '),\n')
+
+    f.write("""\
+    // clang-format on
+};
+
+std::optional<uint32_t> GetInstanceExtensionPromotedVersion(const char* name) {
+    auto begin = std::cbegin(g_promoted_instance_extensions);
+    auto end = std::cend(g_promoted_instance_extensions);
+    auto iter =
+        std::lower_bound(begin, end, name,
+                         [](const std::pair<const char*, uint32_t>& e,
+                            const char* n) { return strcmp(e.first, n) < 0; });
+    return (iter < end && strcmp(iter->first, name) == 0)
+               ? std::optional<uint32_t>(iter->second)
+               : std::nullopt;
+}
+
+uint32_t CountPromotedInstanceExtensions(uint32_t begin_version,
+                                         uint32_t end_version) {
+    auto begin = std::cbegin(g_promoted_instance_extensions);
+    auto end = std::cend(g_promoted_instance_extensions);
+    uint32_t count = 0;
+
+    for (auto iter = begin; iter != end; iter++)
+        if (iter->second > begin_version && iter->second <= end_version)
+            count++;
+
+    return count;
+}
+
+std::vector<const char*> GetPromotedInstanceExtensions(uint32_t begin_version,
+                                                       uint32_t end_version) {
+    auto begin = std::cbegin(g_promoted_instance_extensions);
+    auto end = std::cend(g_promoted_instance_extensions);
+    std::vector<const char*> extensions;
+
+    for (auto iter = begin; iter != end; iter++)
+        if (iter->second > begin_version && iter->second <= end_version)
+            extensions.emplace_back(iter->first);
+
+    return extensions;
+}
+
 }  // namespace driver
 }  // namespace vulkan\n""")
 
diff --git a/vulkan/scripts/generator_common.py b/vulkan/scripts/generator_common.py
index ef0719d..ef021f2 100644
--- a/vulkan/scripts/generator_common.py
+++ b/vulkan/scripts/generator_common.py
@@ -97,6 +97,9 @@
 # Dict for mapping a function to the core Vulkan API version.
 version_dict = {}
 
+# Dict for mapping a promoted instance extension to the core Vulkan API version.
+promoted_inst_ext_dict = {}
+
 
 def indent(num):
   """Returns the requested indents.
@@ -183,6 +186,15 @@
   return version[11:]
 
 
+def version_2_api_version(version):
+  """Returns the api version from a version string.
+
+  Args:
+    version: Vulkan version string.
+  """
+  return 'VK_API' + version[2:]
+
+
 def is_function_supported(cmd):
   """Returns true if a function is core or from a supportable extension.
 
@@ -327,6 +339,7 @@
   return_type_dict
   version_code_list
   version_dict
+  promoted_inst_ext_dict
   """
   registry = os.path.join(os.path.dirname(__file__), '..', '..', '..', '..',
                           'external', 'vulkan-headers', 'registry', 'vk.xml')
@@ -379,6 +392,10 @@
       apiversion = ''
       if extension.tag == 'extension':
         extname = extension.get('name')
+        if (extension.get('type') == 'instance' and
+            extension.get('promotedto') is not None):
+          promoted_inst_ext_dict[extname] = \
+              version_2_api_version(extension.get('promotedto'))
         for req in extension:
           if req.get('feature') is not None:
             apiversion = req.get('feature')
diff --git a/vulkan/vkjson/vkjson.h b/vulkan/vkjson/vkjson.h
index a283b83..52e7bee 100644
--- a/vulkan/vkjson/vkjson.h
+++ b/vulkan/vkjson/vkjson.h
@@ -158,10 +158,7 @@
                             VkJsonInstance* instance,
                             std::string* errors);
 
-VkJsonDevice VkJsonGetDevice(VkInstance instance,
-                             VkPhysicalDevice device,
-                             uint32_t instanceExtensionCount,
-                             const char* const* instanceExtensions);
+VkJsonDevice VkJsonGetDevice(VkPhysicalDevice device);
 std::string VkJsonDeviceToJson(const VkJsonDevice& device);
 bool VkJsonDeviceFromJson(const std::string& json,
                           VkJsonDevice* device,
@@ -177,7 +174,7 @@
 typedef VkJsonDevice VkJsonAllProperties;
 inline VkJsonAllProperties VkJsonGetAllProperties(
     VkPhysicalDevice physicalDevice) {
-  return VkJsonGetDevice(VK_NULL_HANDLE, physicalDevice, 0, nullptr);
+  return VkJsonGetDevice(physicalDevice);
 }
 inline std::string VkJsonAllPropertiesToJson(
     const VkJsonAllProperties& properties) {
diff --git a/vulkan/vkjson/vkjson_instance.cc b/vulkan/vkjson/vkjson_instance.cc
index 84cfe5e..ace713b 100644
--- a/vulkan/vkjson/vkjson_instance.cc
+++ b/vulkan/vkjson/vkjson_instance.cc
@@ -28,8 +28,6 @@
 #include <utility>
 
 namespace {
-const char* kSupportedInstanceExtensions[] = {
-    "VK_KHR_get_physical_device_properties2"};
 
 bool EnumerateExtensions(const char* layer_name,
                          std::vector<VkExtensionProperties>* extensions) {
@@ -47,15 +45,6 @@
 }
 
 bool HasExtension(const char* extension_name,
-                  uint32_t count,
-                  const char* const* extensions) {
-  return std::find_if(extensions, extensions + count,
-                      [extension_name](const char* extension) {
-                        return strcmp(extension, extension_name) == 0;
-                      }) != extensions + count;
-}
-
-bool HasExtension(const char* extension_name,
                   const std::vector<VkExtensionProperties>& extensions) {
   return std::find_if(extensions.cbegin(), extensions.cend(),
                       [extension_name](const VkExtensionProperties& extension) {
@@ -65,27 +54,9 @@
 }
 }  // anonymous namespace
 
-VkJsonDevice VkJsonGetDevice(VkInstance instance,
-                             VkPhysicalDevice physical_device,
-                             uint32_t instance_extension_count,
-                             const char* const* instance_extensions) {
+VkJsonDevice VkJsonGetDevice(VkPhysicalDevice physical_device) {
   VkJsonDevice device;
 
-  PFN_vkGetPhysicalDeviceProperties2KHR vkpGetPhysicalDeviceProperties2KHR =
-      nullptr;
-  PFN_vkGetPhysicalDeviceFeatures2KHR vkpGetPhysicalDeviceFeatures2KHR =
-      nullptr;
-  if (instance != VK_NULL_HANDLE &&
-      HasExtension("VK_KHR_get_physical_device_properties2",
-                   instance_extension_count, instance_extensions)) {
-    vkpGetPhysicalDeviceProperties2KHR =
-        reinterpret_cast<PFN_vkGetPhysicalDeviceProperties2KHR>(
-            vkGetInstanceProcAddr(instance, "vkGetPhysicalDeviceProperties2KHR"));
-    vkpGetPhysicalDeviceFeatures2KHR =
-        reinterpret_cast<PFN_vkGetPhysicalDeviceFeatures2KHR>(
-            vkGetInstanceProcAddr(instance, "vkGetPhysicalDeviceFeatures2KHR"));
-  }
-
   uint32_t extension_count = 0;
   vkEnumerateDeviceExtensionProperties(physical_device, nullptr,
                                        &extension_count, nullptr);
@@ -103,55 +74,48 @@
                                      device.layers.data());
   }
 
-  if (HasExtension("VK_KHR_get_physical_device_properties2",
-                   instance_extension_count, instance_extensions)) {
-    VkPhysicalDeviceProperties2KHR properties = {
-        VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PROPERTIES_2_KHR,
-        nullptr,
-        {} // properties
-    };
-    if (HasExtension("VK_KHR_driver_properties", device.extensions)) {
-      device.ext_driver_properties.reported = true;
-      device.ext_driver_properties.driver_properties_khr.sType =
-          VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_DRIVER_PROPERTIES_KHR;
-      device.ext_driver_properties.driver_properties_khr.pNext =
-          properties.pNext;
-      properties.pNext =
-          &device.ext_driver_properties.driver_properties_khr;
-    }
-    vkpGetPhysicalDeviceProperties2KHR(physical_device, &properties);
-    device.properties = properties.properties;
-
-    VkPhysicalDeviceFeatures2KHR features = {
-        VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2_KHR,
-        nullptr,
-        {}  // features
-    };
-    if (HasExtension("VK_KHR_variable_pointers", device.extensions)) {
-      device.ext_variable_pointer_features.reported = true;
-      device.ext_variable_pointer_features.variable_pointer_features_khr.sType =
-          VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VARIABLE_POINTER_FEATURES_KHR;
-      device.ext_variable_pointer_features.variable_pointer_features_khr.pNext =
-          features.pNext;
-      features.pNext =
-          &device.ext_variable_pointer_features.variable_pointer_features_khr;
-    }
-    if (HasExtension("VK_KHR_shader_float16_int8", device.extensions)) {
-      device.ext_shader_float16_int8_features.reported = true;
-      device.ext_shader_float16_int8_features.shader_float16_int8_features_khr
-          .sType =
-          VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_FLOAT16_INT8_FEATURES_KHR;
-      device.ext_shader_float16_int8_features.shader_float16_int8_features_khr
-          .pNext = features.pNext;
-      features.pNext = &device.ext_shader_float16_int8_features
-                            .shader_float16_int8_features_khr;
-    }
-    vkpGetPhysicalDeviceFeatures2KHR(physical_device, &features);
-    device.features = features.features;
-  } else {
-    vkGetPhysicalDeviceProperties(physical_device, &device.properties);
-    vkGetPhysicalDeviceFeatures(physical_device, &device.features);
+  VkPhysicalDeviceProperties2 properties = {
+      VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PROPERTIES_2,
+      nullptr,
+      {},
+  };
+  if (HasExtension("VK_KHR_driver_properties", device.extensions)) {
+    device.ext_driver_properties.reported = true;
+    device.ext_driver_properties.driver_properties_khr.sType =
+        VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_DRIVER_PROPERTIES_KHR;
+    device.ext_driver_properties.driver_properties_khr.pNext = properties.pNext;
+    properties.pNext = &device.ext_driver_properties.driver_properties_khr;
   }
+  vkGetPhysicalDeviceProperties2(physical_device, &properties);
+  device.properties = properties.properties;
+
+  VkPhysicalDeviceFeatures2 features = {
+      VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2,
+      nullptr,
+      {},
+  };
+  if (HasExtension("VK_KHR_variable_pointers", device.extensions)) {
+    device.ext_variable_pointer_features.reported = true;
+    device.ext_variable_pointer_features.variable_pointer_features_khr.sType =
+        VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VARIABLE_POINTER_FEATURES_KHR;
+    device.ext_variable_pointer_features.variable_pointer_features_khr.pNext =
+        features.pNext;
+    features.pNext =
+        &device.ext_variable_pointer_features.variable_pointer_features_khr;
+  }
+  if (HasExtension("VK_KHR_shader_float16_int8", device.extensions)) {
+    device.ext_shader_float16_int8_features.reported = true;
+    device.ext_shader_float16_int8_features.shader_float16_int8_features_khr
+        .sType =
+        VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_FLOAT16_INT8_FEATURES_KHR;
+    device.ext_shader_float16_int8_features.shader_float16_int8_features_khr
+        .pNext = features.pNext;
+    features.pNext = &device.ext_shader_float16_int8_features
+                          .shader_float16_int8_features_khr;
+  }
+  vkGetPhysicalDeviceFeatures2(physical_device, &features);
+  device.features = features.features;
+
   vkGetPhysicalDeviceMemoryProperties(physical_device, &device.memory);
 
   uint32_t queue_family_count = 0;
@@ -189,135 +153,117 @@
       }
     }
 
-    PFN_vkGetPhysicalDeviceProperties2 vkpGetPhysicalDeviceProperties2 =
-        reinterpret_cast<PFN_vkGetPhysicalDeviceProperties2>(
-            vkGetInstanceProcAddr(instance, "vkGetPhysicalDeviceProperties2"));
-    if (vkpGetPhysicalDeviceProperties2) {
-      VkPhysicalDeviceProperties2 properties2 = {
-          VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PROPERTIES_2, nullptr, {}};
+    VkPhysicalDeviceProperties2 properties2 = {
+        VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PROPERTIES_2,
+        nullptr,
+        {},
+    };
 
-      device.subgroup_properties.sType =
-          VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SUBGROUP_PROPERTIES;
-      device.subgroup_properties.pNext = properties2.pNext;
-      properties2.pNext = &device.subgroup_properties;
+    device.subgroup_properties.sType =
+        VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SUBGROUP_PROPERTIES;
+    device.subgroup_properties.pNext = properties2.pNext;
+    properties2.pNext = &device.subgroup_properties;
 
-      device.point_clipping_properties.sType =
-          VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_POINT_CLIPPING_PROPERTIES;
-      device.point_clipping_properties.pNext = properties2.pNext;
-      properties2.pNext = &device.point_clipping_properties;
+    device.point_clipping_properties.sType =
+        VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_POINT_CLIPPING_PROPERTIES;
+    device.point_clipping_properties.pNext = properties2.pNext;
+    properties2.pNext = &device.point_clipping_properties;
 
-      device.multiview_properties.sType =
-          VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MULTIVIEW_PROPERTIES;
-      device.multiview_properties.pNext = properties2.pNext;
-      properties2.pNext = &device.multiview_properties;
+    device.multiview_properties.sType =
+        VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MULTIVIEW_PROPERTIES;
+    device.multiview_properties.pNext = properties2.pNext;
+    properties2.pNext = &device.multiview_properties;
 
-      device.id_properties.sType =
-          VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_ID_PROPERTIES;
-      device.id_properties.pNext = properties2.pNext;
-      properties2.pNext = &device.id_properties;
+    device.id_properties.sType =
+        VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_ID_PROPERTIES;
+    device.id_properties.pNext = properties2.pNext;
+    properties2.pNext = &device.id_properties;
 
-      device.maintenance3_properties.sType =
-          VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MAINTENANCE_3_PROPERTIES;
-      device.maintenance3_properties.pNext = properties2.pNext;
-      properties2.pNext = &device.maintenance3_properties;
+    device.maintenance3_properties.sType =
+        VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MAINTENANCE_3_PROPERTIES;
+    device.maintenance3_properties.pNext = properties2.pNext;
+    properties2.pNext = &device.maintenance3_properties;
 
-      (*vkpGetPhysicalDeviceProperties2)(physical_device, &properties2);
-    }
+    vkGetPhysicalDeviceProperties2(physical_device, &properties2);
 
-    PFN_vkGetPhysicalDeviceFeatures2 vkpGetPhysicalDeviceFeatures2 =
-        reinterpret_cast<PFN_vkGetPhysicalDeviceFeatures2>(
-            vkGetInstanceProcAddr(instance, "vkGetPhysicalDeviceFeatures2"));
-    if (vkpGetPhysicalDeviceFeatures2) {
-      VkPhysicalDeviceFeatures2 features2 = {
-          VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2, nullptr, {}};
+    VkPhysicalDeviceFeatures2 features2 = {
+        VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2,
+        nullptr,
+        {},
+    };
 
-      device.bit16_storage_features.sType =
-          VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_16BIT_STORAGE_FEATURES;
-      device.bit16_storage_features.pNext = features2.pNext;
-      features2.pNext = &device.bit16_storage_features;
+    device.bit16_storage_features.sType =
+        VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_16BIT_STORAGE_FEATURES;
+    device.bit16_storage_features.pNext = features2.pNext;
+    features2.pNext = &device.bit16_storage_features;
 
-      device.multiview_features.sType =
-          VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MULTIVIEW_FEATURES;
-      device.multiview_features.pNext = features2.pNext;
-      features2.pNext = &device.multiview_features;
+    device.multiview_features.sType =
+        VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MULTIVIEW_FEATURES;
+    device.multiview_features.pNext = features2.pNext;
+    features2.pNext = &device.multiview_features;
 
-      device.variable_pointer_features.sType =
-          VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VARIABLE_POINTER_FEATURES;
-      device.variable_pointer_features.pNext = features2.pNext;
-      features2.pNext = &device.variable_pointer_features;
+    device.variable_pointer_features.sType =
+        VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VARIABLE_POINTER_FEATURES;
+    device.variable_pointer_features.pNext = features2.pNext;
+    features2.pNext = &device.variable_pointer_features;
 
-      device.protected_memory_features.sType =
-          VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PROTECTED_MEMORY_FEATURES;
-      device.protected_memory_features.pNext = features2.pNext;
-      features2.pNext = &device.protected_memory_features;
+    device.protected_memory_features.sType =
+        VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PROTECTED_MEMORY_FEATURES;
+    device.protected_memory_features.pNext = features2.pNext;
+    features2.pNext = &device.protected_memory_features;
 
-      device.sampler_ycbcr_conversion_features.sType =
-          VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SAMPLER_YCBCR_CONVERSION_FEATURES;
-      device.sampler_ycbcr_conversion_features.pNext = features2.pNext;
-      features2.pNext = &device.sampler_ycbcr_conversion_features;
+    device.sampler_ycbcr_conversion_features.sType =
+        VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SAMPLER_YCBCR_CONVERSION_FEATURES;
+    device.sampler_ycbcr_conversion_features.pNext = features2.pNext;
+    features2.pNext = &device.sampler_ycbcr_conversion_features;
 
-      device.shader_draw_parameter_features.sType =
-          VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_DRAW_PARAMETER_FEATURES;
-      device.shader_draw_parameter_features.pNext = features2.pNext;
-      features2.pNext = &device.shader_draw_parameter_features;
+    device.shader_draw_parameter_features.sType =
+        VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_DRAW_PARAMETER_FEATURES;
+    device.shader_draw_parameter_features.pNext = features2.pNext;
+    features2.pNext = &device.shader_draw_parameter_features;
 
-      (*vkpGetPhysicalDeviceFeatures2)(physical_device, &features2);
-    }
+    vkGetPhysicalDeviceFeatures2(physical_device, &features2);
 
-    PFN_vkGetPhysicalDeviceExternalFenceProperties
-        vkpGetPhysicalDeviceExternalFenceProperties =
-            reinterpret_cast<PFN_vkGetPhysicalDeviceExternalFenceProperties>(
-                vkGetInstanceProcAddr(
-                    instance, "vkGetPhysicalDeviceExternalFenceProperties"));
-    if (vkpGetPhysicalDeviceExternalFenceProperties) {
-      VkPhysicalDeviceExternalFenceInfo external_fence_info = {
-          VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_EXTERNAL_FENCE_INFO, nullptr,
-          VK_EXTERNAL_FENCE_HANDLE_TYPE_OPAQUE_FD_BIT};
-      VkExternalFenceProperties external_fence_properties = {};
+    VkPhysicalDeviceExternalFenceInfo external_fence_info = {
+        VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_EXTERNAL_FENCE_INFO, nullptr,
+        VK_EXTERNAL_FENCE_HANDLE_TYPE_OPAQUE_FD_BIT};
+    VkExternalFenceProperties external_fence_properties = {};
 
-      for (VkExternalFenceHandleTypeFlagBits handle_type =
-               VK_EXTERNAL_FENCE_HANDLE_TYPE_OPAQUE_FD_BIT;
-           handle_type <= VK_EXTERNAL_FENCE_HANDLE_TYPE_SYNC_FD_BIT;
-           handle_type = static_cast<VkExternalFenceHandleTypeFlagBits>(
-               handle_type << 1)) {
-        external_fence_info.handleType = handle_type;
-        (*vkpGetPhysicalDeviceExternalFenceProperties)(
-            physical_device, &external_fence_info, &external_fence_properties);
-        if (external_fence_properties.exportFromImportedHandleTypes ||
-            external_fence_properties.compatibleHandleTypes ||
-            external_fence_properties.externalFenceFeatures) {
-          device.external_fence_properties.insert(
-              std::make_pair(handle_type, external_fence_properties));
-        }
+    for (VkExternalFenceHandleTypeFlagBits handle_type =
+             VK_EXTERNAL_FENCE_HANDLE_TYPE_OPAQUE_FD_BIT;
+         handle_type <= VK_EXTERNAL_FENCE_HANDLE_TYPE_SYNC_FD_BIT;
+         handle_type =
+             static_cast<VkExternalFenceHandleTypeFlagBits>(handle_type << 1)) {
+      external_fence_info.handleType = handle_type;
+      vkGetPhysicalDeviceExternalFenceProperties(
+          physical_device, &external_fence_info, &external_fence_properties);
+      if (external_fence_properties.exportFromImportedHandleTypes ||
+          external_fence_properties.compatibleHandleTypes ||
+          external_fence_properties.externalFenceFeatures) {
+        device.external_fence_properties.insert(
+            std::make_pair(handle_type, external_fence_properties));
       }
     }
 
-    PFN_vkGetPhysicalDeviceExternalSemaphoreProperties
-        vkpGetPhysicalDeviceExternalSemaphoreProperties = reinterpret_cast<
-            PFN_vkGetPhysicalDeviceExternalSemaphoreProperties>(
-            vkGetInstanceProcAddr(
-                instance, "vkGetPhysicalDeviceExternalSemaphoreProperties"));
-    if (vkpGetPhysicalDeviceExternalSemaphoreProperties) {
-      VkPhysicalDeviceExternalSemaphoreInfo external_semaphore_info = {
-          VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_EXTERNAL_SEMAPHORE_INFO, nullptr,
-          VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_OPAQUE_FD_BIT};
-      VkExternalSemaphoreProperties external_semaphore_properties = {};
+    VkPhysicalDeviceExternalSemaphoreInfo external_semaphore_info = {
+        VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_EXTERNAL_SEMAPHORE_INFO, nullptr,
+        VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_OPAQUE_FD_BIT};
+    VkExternalSemaphoreProperties external_semaphore_properties = {};
 
-      for (VkExternalSemaphoreHandleTypeFlagBits handle_type =
-               VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_OPAQUE_FD_BIT;
-           handle_type <= VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_SYNC_FD_BIT;
-           handle_type = static_cast<VkExternalSemaphoreHandleTypeFlagBits>(
-               handle_type << 1)) {
-        external_semaphore_info.handleType = handle_type;
-        (*vkpGetPhysicalDeviceExternalSemaphoreProperties)(
-            physical_device, &external_semaphore_info,
-            &external_semaphore_properties);
-        if (external_semaphore_properties.exportFromImportedHandleTypes ||
-            external_semaphore_properties.compatibleHandleTypes ||
-            external_semaphore_properties.externalSemaphoreFeatures) {
-          device.external_semaphore_properties.insert(
-              std::make_pair(handle_type, external_semaphore_properties));
-        }
+    for (VkExternalSemaphoreHandleTypeFlagBits handle_type =
+             VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_OPAQUE_FD_BIT;
+         handle_type <= VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_SYNC_FD_BIT;
+         handle_type = static_cast<VkExternalSemaphoreHandleTypeFlagBits>(
+             handle_type << 1)) {
+      external_semaphore_info.handleType = handle_type;
+      vkGetPhysicalDeviceExternalSemaphoreProperties(
+          physical_device, &external_semaphore_info,
+          &external_semaphore_properties);
+      if (external_semaphore_properties.exportFromImportedHandleTypes ||
+          external_semaphore_properties.compatibleHandleTypes ||
+          external_semaphore_properties.externalSemaphoreFeatures) {
+        device.external_semaphore_properties.insert(
+            std::make_pair(handle_type, external_semaphore_properties));
       }
     }
   }
@@ -351,19 +297,15 @@
   if (!EnumerateExtensions(nullptr, &instance.extensions))
     return VkJsonInstance();
 
-  std::vector<const char*> instance_extensions;
-  for (const auto extension : kSupportedInstanceExtensions) {
-    if (HasExtension(extension, instance.extensions))
-      instance_extensions.push_back(extension);
-  }
-
-  const VkApplicationInfo app_info = {VK_STRUCTURE_TYPE_APPLICATION_INFO,
-                                      nullptr,
-                                      "vkjson_info",
-                                      1,
-                                      "",
-                                      0,
-                                      VK_API_VERSION_1_1};
+  const VkApplicationInfo app_info = {
+      VK_STRUCTURE_TYPE_APPLICATION_INFO,
+      nullptr,
+      "vkjson_info",
+      1,
+      "",
+      0,
+      VK_API_VERSION_1_1,
+  };
   VkInstanceCreateInfo instance_info = {
       VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO,
       nullptr,
@@ -371,8 +313,9 @@
       &app_info,
       0,
       nullptr,
-      static_cast<uint32_t>(instance_extensions.size()),
-      instance_extensions.data()};
+      0,
+      nullptr,
+  };
   VkInstance vkinstance;
   result = vkCreateInstance(&instance_info, nullptr, &vkinstance);
   if (result != VK_SUCCESS)
@@ -397,52 +340,38 @@
   instance.devices.reserve(sz);
   for (uint32_t i = 0; i < sz; ++i) {
     device_map.insert(std::make_pair(devices[i], i));
-    instance.devices.emplace_back(VkJsonGetDevice(vkinstance, devices[i],
-                                                  instance_extensions.size(),
-                                                  instance_extensions.data()));
+    instance.devices.emplace_back(VkJsonGetDevice(devices[i]));
   }
 
-  PFN_vkEnumerateInstanceVersion vkpEnumerateInstanceVersion =
-      reinterpret_cast<PFN_vkEnumerateInstanceVersion>(
-          vkGetInstanceProcAddr(nullptr, "vkEnumerateInstanceVersion"));
-  if (!vkpEnumerateInstanceVersion) {
-    instance.api_version = VK_API_VERSION_1_0;
-  } else {
-    result = (*vkpEnumerateInstanceVersion)(&instance.api_version);
-    if (result != VK_SUCCESS) {
-      vkDestroyInstance(vkinstance, nullptr);
-      return VkJsonInstance();
-    }
+  result = vkEnumerateInstanceVersion(&instance.api_version);
+  if (result != VK_SUCCESS) {
+    vkDestroyInstance(vkinstance, nullptr);
+    return VkJsonInstance();
   }
 
-  PFN_vkEnumeratePhysicalDeviceGroups vkpEnumeratePhysicalDeviceGroups =
-      reinterpret_cast<PFN_vkEnumeratePhysicalDeviceGroups>(
-          vkGetInstanceProcAddr(vkinstance, "vkEnumeratePhysicalDeviceGroups"));
-  if (vkpEnumeratePhysicalDeviceGroups) {
-    count = 0;
-    result = (*vkpEnumeratePhysicalDeviceGroups)(vkinstance, &count, nullptr);
-    if (result != VK_SUCCESS) {
-      vkDestroyInstance(vkinstance, nullptr);
-      return VkJsonInstance();
-    }
+  count = 0;
+  result = vkEnumeratePhysicalDeviceGroups(vkinstance, &count, nullptr);
+  if (result != VK_SUCCESS) {
+    vkDestroyInstance(vkinstance, nullptr);
+    return VkJsonInstance();
+  }
 
-    VkJsonDeviceGroup device_group;
-    std::vector<VkPhysicalDeviceGroupProperties> group_properties;
-    group_properties.resize(count);
-    result = (*vkpEnumeratePhysicalDeviceGroups)(vkinstance, &count,
-                                                 group_properties.data());
-    if (result != VK_SUCCESS) {
-      vkDestroyInstance(vkinstance, nullptr);
-      return VkJsonInstance();
+  VkJsonDeviceGroup device_group;
+  std::vector<VkPhysicalDeviceGroupProperties> group_properties;
+  group_properties.resize(count);
+  result = vkEnumeratePhysicalDeviceGroups(vkinstance, &count,
+                                           group_properties.data());
+  if (result != VK_SUCCESS) {
+    vkDestroyInstance(vkinstance, nullptr);
+    return VkJsonInstance();
+  }
+  for (auto properties : group_properties) {
+    device_group.properties = properties;
+    for (uint32_t i = 0; i < properties.physicalDeviceCount; ++i) {
+      device_group.device_inds.push_back(
+          device_map[properties.physicalDevices[i]]);
     }
-    for (auto properties : group_properties) {
-      device_group.properties = properties;
-      for (uint32_t i = 0; i < properties.physicalDeviceCount; ++i) {
-        device_group.device_inds.push_back(
-            device_map[properties.physicalDevices[i]]);
-      }
-      instance.device_groups.push_back(device_group);
-    }
+    instance.device_groups.push_back(device_group);
   }
 
   vkDestroyInstance(vkinstance, nullptr);