sepolicy: qti: Allow system server to detect oem charging

Signed-off-by: AnierinB <anierin@evolution-x.org>

DSPVolumeSynchronizer/Android.bp

@@ -0,0 +1,39 @@
+//
+// Copyright (C) 2024-2025 The LineageOS Project
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+android_app {
+    name: "DSPVolumeSynchronizer",
+    certificate: "platform",
+    srcs: ["src/**/*.java"],
+    platform_apis: true,
+    privileged: true,
+    system_ext_specific: true,
+    static_libs: [
+        "androidx.core_core",
+        "SettingsLib",
+    ],
+
+    required: [
+        "privapp-permissions-dspvolume",
+        "config-dspvolume",
+    ],
+}
+
+prebuilt_etc {
+    name: "privapp-permissions-dspvolume",
+    relative_install_path: "permissions",
+    src: "privapp-permissions-dspvolume.xml",
+    system_ext_specific: true,
+    filename_from_src: true,
+}
+
+prebuilt_etc {
+    name: "config-dspvolume",
+    relative_install_path: "sysconfig",
+    src: "config-dspvolume.xml",
+    system_ext_specific: true,
+    filename_from_src: true,
+}

DSPVolumeSynchronizer/AndroidManifest.xml

@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="org.lineageos.dspvolume.xiaomi"
+    android:versionCode="1"
+    android:versionName="1.0"
+    android:sharedUserId="android.uid.system">
+
+    <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />
+
+    <application
+        android:label="@string/app_name"
+        android:persistent="true"
+        android:defaultToDeviceProtectedStorage="true"
+        android:directBootAware="true">
+
+        <receiver
+            android:name=".BootReceiver"
+            android:exported="true"
+            android:permission="android.permission.RECEIVE_BOOT_COMPLETED">
+            <intent-filter android:priority="999">
+                <action android:name="android.intent.action.BOOT_COMPLETED" />
+                <category android:name="android.intent.category.DEFAULT" />
+            </intent-filter>
+        </receiver>
+
+        <service
+            android:name=".VolumeListenerService" />
+    </application>
+</manifest>
+

DSPVolumeSynchronizer/config-dspvolume.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
+<config>
+    <allow-in-power-save package="org.lineageos.dspvolume.xiaomi" />
+    <hidden-api-whitelisted-app package="org.lineageos.dspvolume.xiaomi" />
+</config>

DSPVolumeSynchronizer/privapp-permissions-dspvolume.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<permissions>
+    <privapp-permissions package="org.lineageos.dspvolume.xiaomi">
+        <permission name="android.permission.INTERACT_ACROSS_USERS" />
+        <permission name="android.permission.INTERACT_ACROSS_USERS_FULL" />
+        <permission name="android.permission.MODIFY_AUDIO_SETTINGS" />
+        <permission name="android.permission.RECEIVE_BOOT_COMPLETED" />
+    </privapp-permissions>
+</permissions>

DSPVolumeSynchronizer/res/values/strings.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- App Name -->
+    <string name="app_name">DSP Volume Synchronizer</string>
+</resources>

DSPVolumeSynchronizer/src/org/lineageos/dspvolume/xiaomi/BootReceiver.java

@@ -0,0 +1,16 @@
+package org.lineageos.dspvolume.xiaomi;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+
+
+public class BootReceiver extends BroadcastReceiver {
+    @Override
+    public void onReceive(final Context context, Intent intent) {
+        if (context == null) {
+            return;
+        }
+        context.startService(new Intent(context, VolumeListenerService.class));
+    }
+}

DSPVolumeSynchronizer/src/org/lineageos/dspvolume/xiaomi/VolumeListenerReceiver.java

@@ -0,0 +1,28 @@
+package org.lineageos.dspvolume.xiaomi;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.media.AudioManager;
+import android.util.Log;
+
+import android.os.Bundle;
+
+public class VolumeListenerReceiver extends BroadcastReceiver {
+
+    @Override
+    public void onReceive(Context context, Intent intent) {
+        if (context == null) {
+            return;
+        }
+
+        if(intent.getIntExtra("android.media.EXTRA_VOLUME_STREAM_TYPE", 0) == AudioManager.STREAM_MUSIC) {
+            AudioManager audioManager = context.getSystemService(AudioManager.class);
+            int current = intent.getIntExtra(
+                            "android.media.EXTRA_VOLUME_STREAM_VALUE",
+                            0
+                          );
+            audioManager.setParameters("volume_change=" + current + ";flags=8");
+        }
+    }
+}

DSPVolumeSynchronizer/src/org/lineageos/dspvolume/xiaomi/VolumeListenerService.java

@@ -0,0 +1,30 @@
+package org.lineageos.dspvolume.xiaomi;
+
+import android.app.Service;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.media.AudioManager;
+import android.os.IBinder;
+
+import androidx.annotation.Nullable;
+
+public class VolumeListenerService extends Service {
+    @Nullable
+    @Override
+    public IBinder onBind(Intent intent) {
+        return null;
+    }
+
+    @Override
+    public int onStartCommand(Intent intent, int flags, int startId) {
+        IntentFilter intentFilter = new IntentFilter();
+        intentFilter.addAction("android.media.VOLUME_CHANGED_ACTION");
+        registerReceiver(new VolumeListenerReceiver(), intentFilter);
+
+        AudioManager audioManager = getSystemService(AudioManager.class);
+        int current = audioManager.getStreamVolume(AudioManager.STREAM_MUSIC);
+        audioManager.setParameters("volume_change=" + current + ";flags=8");
+
+        return super.onStartCommand(intent, flags, startId);
+    }
+}

KeyHandler/AndroidManifest.xml

@@ -42,17 +42,19 @@
         <!-- Additional button settings (Button settings) -->
         <activity
             android:name=".ButtonSettingsActivity"
-            android:label="@string/button_panel_title"
-            android:exported="false">
+            android:label="@string/alert_slider_category_title"
+            android:exported="true">
             <intent-filter>
-                <action android:name="org.lineageos.settings.device.ADDITIONAL_BUTTONS_SETTINGS" />
-                <category android:name="android.intent.category.DEFAULT" />
+                <action android:name="com.android.settings.action.IA_SETTINGS" />
             </intent-filter>
+            <meta-data
+                android:name="com.android.settings.category"
+                android:value="com.android.settings.category.ia.sound" />
         </activity>
 
         <service
             android:name=".KeyHandler"
             android:permission="KeyHandlerService"
-            android:exported="false" />
+            android:exported="true" />
     </application>
 </manifest>

KeyHandler/res/values/strings.xml

@@ -5,7 +5,7 @@
 -->
 <resources>
     <!-- Alert slider -->
-    <string name="alert_slider_category_title">Alert slider</string>
+    <string name="alert_slider_category_title">Alert slider settings</string>
     <string name="alert_slider_selection_dialog_title">Action</string>
     <string name="alert_slider_top_position">Top position</string>
     <string name="alert_slider_middle_position">Middle position</string>

aidl/sensors/.clang-format

@@ -0,0 +1 @@
+../../../../build/soong/scripts/system-clang-format

aidl/sensors/Android.bp

@@ -0,0 +1,57 @@
+//
+// Copyright (C) 2021 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 {
+    // See: http://go/android-license-faq
+    default_applicable_licenses: ["Android-Apache-2.0"],
+}
+
+cc_binary {
+    name: "android.hardware.sensors-service.oplus-multihal",
+    vendor: true,
+    relative_install_path: "hw",
+    srcs: [
+        "service.cpp",
+        "HalProxy.cpp",
+        "HalProxyCallback.cpp",
+    ],
+    header_libs: [
+        "android.hardware.sensors@2.X-multihal.header",
+        "android.hardware.sensors@2.X-shared-utils",
+    ],
+    init_rc: ["android.hardware.sensors-service.oplus-multihal.rc"],
+    vintf_fragments: ["android.hardware.sensors.oplus-multihal.xml"],
+    shared_libs: [
+        "android.hardware.sensors@2.0-ScopedWakelock",
+        "android.hardware.sensors@2.0",
+        "android.hardware.sensors@2.1",
+        "android.hardware.sensors-V3-ndk",
+        "libbase",
+        "libcutils",
+        "libfmq",
+        "liblog",
+        "libpower",
+        "libutils",
+        "libbinder_ndk",
+        "libhidlbase",
+    ],
+    static_libs: [
+        "libaidlcommonsupport",
+        "android.hardware.sensors@1.0-convert",
+        "android.hardware.sensors@2.X-multihal",
+        "android.hardware.sensors@aidl-multihal",
+    ],
+}

aidl/sensors/HalProxy.cpp

@@ -0,0 +1,810 @@
+/*
+ * 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 "HalProxy.h"
+
+#include <android/hardware/sensors/2.0/types.h>
+
+#include <android-base/file.h>
+#include "hardware_legacy/power.h"
+
+#include <dlfcn.h>
+
+#include <cinttypes>
+#include <cmath>
+#include <fstream>
+#include <functional>
+#include <thread>
+
+namespace android {
+namespace hardware {
+namespace sensors {
+namespace V2_1 {
+namespace implementation {
+
+using ::android::hardware::sensors::V1_0::Result;
+using ::android::hardware::sensors::V2_0::EventQueueFlagBits;
+using ::android::hardware::sensors::V2_0::WakeLockQueueFlagBits;
+using ::android::hardware::sensors::V2_0::implementation::getTimeNow;
+using ::android::hardware::sensors::V2_0::implementation::kWakelockTimeoutNs;
+
+typedef V2_0::implementation::ISensorsSubHal*(SensorsHalGetSubHalFunc)(uint32_t*);
+typedef V2_1::implementation::ISensorsSubHal*(SensorsHalGetSubHalV2_1Func)(uint32_t*);
+
+static constexpr int32_t kBitsAfterSubHalIndex = 24;
+
+/**
+ * Set the subhal index as first byte of sensor handle and return this modified version.
+ *
+ * @param sensorHandle The sensor handle to modify.
+ * @param subHalIndex The index in the hal proxy of the sub hal this sensor belongs to.
+ *
+ * @return The modified sensor handle.
+ */
+int32_t setSubHalIndex(int32_t sensorHandle, size_t subHalIndex) {
+    return sensorHandle | (static_cast<int32_t>(subHalIndex) << kBitsAfterSubHalIndex);
+}
+
+/**
+ * Extract the subHalIndex from sensorHandle.
+ *
+ * @param sensorHandle The sensorHandle to extract from.
+ *
+ * @return The subhal index.
+ */
+size_t extractSubHalIndex(int32_t sensorHandle) {
+    return static_cast<size_t>(sensorHandle >> kBitsAfterSubHalIndex);
+}
+
+/**
+ * Convert nanoseconds to milliseconds.
+ *
+ * @param nanos The nanoseconds input.
+ *
+ * @return The milliseconds count.
+ */
+int64_t msFromNs(int64_t nanos) {
+    constexpr int64_t nanosecondsInAMillsecond = 1000000;
+    return nanos / nanosecondsInAMillsecond;
+}
+
+bool patchOplusGlanceSensor(V2_1::SensorInfo& sensor) {
+    if (sensor.typeAsString != "qti.sensor.amd") {
+        return true;
+    }
+    /*
+     * Implement only the wake-up version of this sensor.
+     */
+    if (!(sensor.flags & V1_0::SensorFlagBits::WAKE_UP)) {
+        return false;
+    }
+    sensor.type = V2_1::SensorType::GLANCE_GESTURE;
+    sensor.typeAsString = SENSOR_STRING_TYPE_GLANCE_GESTURE;
+    sensor.maxRange = 2;
+    return true;
+}
+
+bool patchOplusPickupSensor(V2_1::SensorInfo& sensor) {
+    if (sensor.typeAsString != "android.sensor.tilt_detector") {
+        return true;
+    }
+
+    /*
+     * Implement only the wake-up version of this sensor.
+     */
+    if (!(sensor.flags & V1_0::SensorFlagBits::WAKE_UP)) {
+        return false;
+    }
+
+    sensor.type = V2_1::SensorType::PICK_UP_GESTURE;
+    sensor.typeAsString = SENSOR_STRING_TYPE_PICK_UP_GESTURE;
+    sensor.maxRange = 1;
+
+    return true;
+}
+
+HalProxy::HalProxy() {
+    static const std::string kMultiHalConfigFiles[] = {"/vendor/etc/sensors/hals.conf",
+                                                       "/odm/etc/sensors/hals.conf"};
+    for (const std::string& configFile : kMultiHalConfigFiles) {
+        initializeSubHalListFromConfigFile(configFile.c_str());
+    }
+    init();
+}
+
+HalProxy::HalProxy(std::vector<ISensorsSubHalV2_0*>& subHalList) {
+    for (ISensorsSubHalV2_0* subHal : subHalList) {
+        mSubHalList.push_back(std::make_unique<SubHalWrapperV2_0>(subHal));
+    }
+
+    init();
+}
+
+HalProxy::HalProxy(std::vector<ISensorsSubHalV2_0*>& subHalList,
+                   std::vector<ISensorsSubHalV2_1*>& subHalListV2_1) {
+    for (ISensorsSubHalV2_0* subHal : subHalList) {
+        mSubHalList.push_back(std::make_unique<SubHalWrapperV2_0>(subHal));
+    }
+
+    for (ISensorsSubHalV2_1* subHal : subHalListV2_1) {
+        mSubHalList.push_back(std::make_unique<SubHalWrapperV2_1>(subHal));
+    }
+
+    init();
+}
+
+HalProxy::~HalProxy() {
+    stopThreads();
+}
+
+Return<void> HalProxy::getSensorsList_2_1(ISensorsV2_1::getSensorsList_2_1_cb _hidl_cb) {
+    std::vector<V2_1::SensorInfo> sensors;
+    for (const auto& iter : mSensors) {
+        sensors.push_back(iter.second);
+    }
+    _hidl_cb(sensors);
+    return Void();
+}
+
+Return<void> HalProxy::getSensorsList(ISensorsV2_0::getSensorsList_cb _hidl_cb) {
+    std::vector<V1_0::SensorInfo> sensors;
+    for (const auto& iter : mSensors) {
+      if (iter.second.type != SensorType::HINGE_ANGLE) {
+        sensors.push_back(convertToOldSensorInfo(iter.second));
+      }
+    }
+    _hidl_cb(sensors);
+    return Void();
+}
+
+Return<Result> HalProxy::setOperationMode(OperationMode mode) {
+    Result result = Result::OK;
+    size_t subHalIndex;
+    for (subHalIndex = 0; subHalIndex < mSubHalList.size(); subHalIndex++) {
+        result = mSubHalList[subHalIndex]->setOperationMode(mode);
+        if (result != Result::OK) {
+            ALOGE("setOperationMode failed for SubHal: %s",
+                  mSubHalList[subHalIndex]->getName().c_str());
+            break;
+        }
+    }
+
+    if (result != Result::OK) {
+        // Reset the subhal operation modes that have been flipped
+        for (size_t i = 0; i < subHalIndex; i++) {
+            mSubHalList[i]->setOperationMode(mCurrentOperationMode);
+        }
+    } else {
+        mCurrentOperationMode = mode;
+    }
+    return result;
+}
+
+Return<Result> HalProxy::activate(int32_t sensorHandle, bool enabled) {
+    if (!isSubHalIndexValid(sensorHandle)) {
+        return Result::BAD_VALUE;
+    }
+    return getSubHalForSensorHandle(sensorHandle)
+            ->activate(clearSubHalIndex(sensorHandle), enabled);
+}
+
+Return<Result> HalProxy::initialize_2_1(
+        const ::android::hardware::MQDescriptorSync<V2_1::Event>& eventQueueDescriptor,
+        const ::android::hardware::MQDescriptorSync<uint32_t>& wakeLockDescriptor,
+        const sp<V2_1::ISensorsCallback>& sensorsCallback) {
+    sp<ISensorsCallbackWrapperBase> dynamicCallback =
+            new ISensorsCallbackWrapperV2_1(sensorsCallback);
+
+    // Create the Event FMQ from the eventQueueDescriptor. Reset the read/write positions.
+    auto eventQueue =
+            std::make_unique<EventMessageQueueV2_1>(eventQueueDescriptor, true /* resetPointers */);
+    std::unique_ptr<EventMessageQueueWrapperBase> queue =
+            std::make_unique<EventMessageQueueWrapperV2_1>(eventQueue);
+
+    // Create the Wake Lock FMQ from the wakeLockDescriptor. Reset the read/write positions.
+    auto hidlWakeLockQueue =
+            std::make_unique<WakeLockMessageQueue>(wakeLockDescriptor, true /* resetPointers */);
+    std::unique_ptr<WakeLockMessageQueueWrapperBase> wakeLockQueue =
+            std::make_unique<WakeLockMessageQueueWrapperHidl>(hidlWakeLockQueue);
+
+    return initializeCommon(queue, wakeLockQueue, dynamicCallback);
+}
+
+Return<Result> HalProxy::initialize(
+        const ::android::hardware::MQDescriptorSync<V1_0::Event>& eventQueueDescriptor,
+        const ::android::hardware::MQDescriptorSync<uint32_t>& wakeLockDescriptor,
+        const sp<V2_0::ISensorsCallback>& sensorsCallback) {
+    sp<ISensorsCallbackWrapperBase> dynamicCallback =
+            new ISensorsCallbackWrapperV2_0(sensorsCallback);
+
+    // Create the Event FMQ from the eventQueueDescriptor. Reset the read/write positions.
+    auto eventQueue =
+            std::make_unique<EventMessageQueueV2_0>(eventQueueDescriptor, true /* resetPointers */);
+    std::unique_ptr<EventMessageQueueWrapperBase> queue =
+            std::make_unique<EventMessageQueueWrapperV1_0>(eventQueue);
+
+    // Create the Wake Lock FMQ from the wakeLockDescriptor. Reset the read/write positions.
+    auto hidlWakeLockQueue =
+            std::make_unique<WakeLockMessageQueue>(wakeLockDescriptor, true /* resetPointers */);
+    std::unique_ptr<WakeLockMessageQueueWrapperBase> wakeLockQueue =
+            std::make_unique<WakeLockMessageQueueWrapperHidl>(hidlWakeLockQueue);
+
+    return initializeCommon(queue, wakeLockQueue, dynamicCallback);
+}
+
+Return<Result> HalProxy::initializeCommon(
+        std::unique_ptr<EventMessageQueueWrapperBase>& eventQueue,
+        std::unique_ptr<WakeLockMessageQueueWrapperBase>& wakeLockQueue,
+        const sp<ISensorsCallbackWrapperBase>& sensorsCallback) {
+    Result result = Result::OK;
+
+    stopThreads();
+    resetSharedWakelock();
+
+    // So that the pending write events queue can be cleared safely and when we start threads
+    // again we do not get new events until after initialize resets the subhals.
+    disableAllSensors();
+
+    // Clears the queue if any events were pending write before.
+    mPendingWriteEventsQueue = std::queue<std::pair<std::vector<V2_1::Event>, size_t>>();
+    mSizePendingWriteEventsQueue = 0;
+
+    // Clears previously connected dynamic sensors
+    mDynamicSensors.clear();
+
+    mDynamicSensorsCallback = sensorsCallback;
+
+    // Create the Event FMQ from the eventQueueDescriptor. Reset the read/write positions.
+    mEventQueue = std::move(eventQueue);
+
+    // Create the Wake Lock FMQ that is used by the framework to communicate whenever WAKE_UP
+    // events have been successfully read and handled by the framework.
+    mWakeLockQueue = std::move(wakeLockQueue);
+
+    if (mEventQueueFlag != nullptr) {
+        EventFlag::deleteEventFlag(&mEventQueueFlag);
+    }
+    if (mWakelockQueueFlag != nullptr) {
+        EventFlag::deleteEventFlag(&mWakelockQueueFlag);
+    }
+    if (EventFlag::createEventFlag(mEventQueue->getEventFlagWord(), &mEventQueueFlag) != OK) {
+        result = Result::BAD_VALUE;
+    }
+    if (EventFlag::createEventFlag(mWakeLockQueue->getEventFlagWord(), &mWakelockQueueFlag) != OK) {
+        result = Result::BAD_VALUE;
+    }
+    if (!mDynamicSensorsCallback || !mEventQueue || !mWakeLockQueue || mEventQueueFlag == nullptr) {
+        result = Result::BAD_VALUE;
+    }
+
+    mThreadsRun.store(true);
+
+    mPendingWritesThread = std::thread(startPendingWritesThread, this);
+    mWakelockThread = std::thread(startWakelockThread, this);
+
+    for (size_t i = 0; i < mSubHalList.size(); i++) {
+        Result currRes = mSubHalList[i]->initialize(this, this, i);
+        if (currRes != Result::OK) {
+            result = currRes;
+            ALOGE("Subhal '%s' failed to initialize with reason %" PRId32 ".",
+                  mSubHalList[i]->getName().c_str(), static_cast<int32_t>(currRes));
+        }
+    }
+
+    mCurrentOperationMode = OperationMode::NORMAL;
+
+    return result;
+}
+
+Return<Result> HalProxy::batch(int32_t sensorHandle, int64_t samplingPeriodNs,
+                               int64_t maxReportLatencyNs) {
+    if (!isSubHalIndexValid(sensorHandle)) {
+        return Result::BAD_VALUE;
+    }
+    return getSubHalForSensorHandle(sensorHandle)
+            ->batch(clearSubHalIndex(sensorHandle), samplingPeriodNs, maxReportLatencyNs);
+}
+
+Return<Result> HalProxy::flush(int32_t sensorHandle) {
+    if (!isSubHalIndexValid(sensorHandle)) {
+        return Result::BAD_VALUE;
+    }
+    return getSubHalForSensorHandle(sensorHandle)->flush(clearSubHalIndex(sensorHandle));
+}
+
+Return<Result> HalProxy::injectSensorData_2_1(const V2_1::Event& event) {
+    return injectSensorData(convertToOldEvent(event));
+}
+
+Return<Result> HalProxy::injectSensorData(const V1_0::Event& event) {
+    Result result = Result::OK;
+    if (mCurrentOperationMode == OperationMode::NORMAL &&
+        event.sensorType != V1_0::SensorType::ADDITIONAL_INFO) {
+        ALOGE("An event with type != ADDITIONAL_INFO passed to injectSensorData while operation"
+              " mode was NORMAL.");
+        result = Result::BAD_VALUE;
+    }
+    if (result == Result::OK) {
+        V1_0::Event subHalEvent = event;
+        if (!isSubHalIndexValid(event.sensorHandle)) {
+            return Result::BAD_VALUE;
+        }
+        subHalEvent.sensorHandle = clearSubHalIndex(event.sensorHandle);
+        result = getSubHalForSensorHandle(event.sensorHandle)
+                         ->injectSensorData(convertToNewEvent(subHalEvent));
+    }
+    return result;
+}
+
+Return<void> HalProxy::registerDirectChannel(const SharedMemInfo& mem,
+                                             ISensorsV2_0::registerDirectChannel_cb _hidl_cb) {
+    if (mDirectChannelSubHal == nullptr) {
+        _hidl_cb(Result::INVALID_OPERATION, -1 /* channelHandle */);
+    } else {
+        mDirectChannelSubHal->registerDirectChannel(mem, _hidl_cb);
+    }
+    return Return<void>();
+}
+
+Return<Result> HalProxy::unregisterDirectChannel(int32_t channelHandle) {
+    Result result;
+    if (mDirectChannelSubHal == nullptr) {
+        result = Result::INVALID_OPERATION;
+    } else {
+        result = mDirectChannelSubHal->unregisterDirectChannel(channelHandle);
+    }
+    return result;
+}
+
+Return<void> HalProxy::configDirectReport(int32_t sensorHandle, int32_t channelHandle,
+                                          RateLevel rate,
+                                          ISensorsV2_0::configDirectReport_cb _hidl_cb) {
+    if (mDirectChannelSubHal == nullptr) {
+        _hidl_cb(Result::INVALID_OPERATION, -1 /* reportToken */);
+    } else if (sensorHandle == -1 && rate != RateLevel::STOP) {
+        _hidl_cb(Result::BAD_VALUE, -1 /* reportToken */);
+    } else {
+        // -1 denotes all sensors should be disabled
+        if (sensorHandle != -1) {
+            sensorHandle = clearSubHalIndex(sensorHandle);
+        }
+        mDirectChannelSubHal->configDirectReport(sensorHandle, channelHandle, rate, _hidl_cb);
+    }
+    return Return<void>();
+}
+
+Return<void> HalProxy::debug(const hidl_handle& fd, const hidl_vec<hidl_string>& args) {
+    if (fd.getNativeHandle() == nullptr || fd->numFds < 1) {
+        ALOGE("%s: missing fd for writing", __FUNCTION__);
+        return Void();
+    }
+
+    int writeFd = fd->data[0];
+
+    std::ostringstream stream;
+    stream << "===HalProxy===" << std::endl;
+    stream << "Internal values:" << std::endl;
+    stream << "  Threads are running: " << (mThreadsRun.load() ? "true" : "false") << std::endl;
+    int64_t now = getTimeNow();
+    stream << "  Wakelock timeout start time: " << msFromNs(now - mWakelockTimeoutStartTime)
+           << " ms ago" << std::endl;
+    stream << "  Wakelock timeout reset time: " << msFromNs(now - mWakelockTimeoutResetTime)
+           << " ms ago" << std::endl;
+    // TODO(b/142969448): Add logging for history of wakelock acquisition per subhal.
+    stream << "  Wakelock ref count: " << mWakelockRefCount << std::endl;
+    stream << "  # of events on pending write writes queue: " << mSizePendingWriteEventsQueue
+           << std::endl;
+    stream << " Most events seen on pending write events queue: "
+           << mMostEventsObservedPendingWriteEventsQueue << std::endl;
+    if (!mPendingWriteEventsQueue.empty()) {
+        stream << "  Size of events list on front of pending writes queue: "
+               << mPendingWriteEventsQueue.front().first.size() << std::endl;
+    }
+    stream << "  # of non-dynamic sensors across all subhals: " << mSensors.size() << std::endl;
+    stream << "  # of dynamic sensors across all subhals: " << mDynamicSensors.size() << std::endl;
+    stream << "SubHals (" << mSubHalList.size() << "):" << std::endl;
+    for (auto& subHal : mSubHalList) {
+        stream << "  Name: " << subHal->getName() << std::endl;
+        stream << "  Debug dump: " << std::endl;
+        android::base::WriteStringToFd(stream.str(), writeFd);
+        subHal->debug(fd, args);
+        stream.str("");
+        stream << std::endl;
+    }
+    android::base::WriteStringToFd(stream.str(), writeFd);
+    return Return<void>();
+}
+
+Return<void> HalProxy::onDynamicSensorsConnected(const hidl_vec<SensorInfo>& dynamicSensorsAdded,
+                                                 int32_t subHalIndex) {
+    std::vector<SensorInfo> sensors;
+    {
+        std::lock_guard<std::mutex> lock(mDynamicSensorsMutex);
+        for (SensorInfo sensor : dynamicSensorsAdded) {
+            if (!subHalIndexIsClear(sensor.sensorHandle)) {
+                ALOGE("Dynamic sensor added %s had sensorHandle with first byte not 0.",
+                      sensor.name.c_str());
+            } else {
+                sensor.sensorHandle = setSubHalIndex(sensor.sensorHandle, subHalIndex);
+                mDynamicSensors[sensor.sensorHandle] = sensor;
+                sensors.push_back(sensor);
+            }
+        }
+    }
+    mDynamicSensorsCallback->onDynamicSensorsConnected(sensors);
+    return Return<void>();
+}
+
+Return<void> HalProxy::onDynamicSensorsDisconnected(
+        const hidl_vec<int32_t>& dynamicSensorHandlesRemoved, int32_t subHalIndex) {
+    // TODO(b/143302327): Block this call until all pending events are flushed from queue
+    std::vector<int32_t> sensorHandles;
+    {
+        std::lock_guard<std::mutex> lock(mDynamicSensorsMutex);
+        for (int32_t sensorHandle : dynamicSensorHandlesRemoved) {
+            if (!subHalIndexIsClear(sensorHandle)) {
+                ALOGE("Dynamic sensorHandle removed had first byte not 0.");
+            } else {
+                sensorHandle = setSubHalIndex(sensorHandle, subHalIndex);
+                if (mDynamicSensors.find(sensorHandle) != mDynamicSensors.end()) {
+                    mDynamicSensors.erase(sensorHandle);
+                    sensorHandles.push_back(sensorHandle);
+                }
+            }
+        }
+    }
+    mDynamicSensorsCallback->onDynamicSensorsDisconnected(sensorHandles);
+    return Return<void>();
+}
+
+void HalProxy::initializeSubHalListFromConfigFile(const char* configFileName) {
+    std::ifstream subHalConfigStream(configFileName);
+    if (!subHalConfigStream) {
+        ALOGE("Failed to load subHal config file: %s", configFileName);
+    } else {
+        std::string subHalLibraryFile;
+        while (subHalConfigStream >> subHalLibraryFile) {
+            void* handle = getHandleForSubHalSharedObject(subHalLibraryFile);
+            if (handle == nullptr) {
+                ALOGE("dlopen failed for library: %s", subHalLibraryFile.c_str());
+            } else {
+                SensorsHalGetSubHalFunc* sensorsHalGetSubHalPtr =
+                        (SensorsHalGetSubHalFunc*)dlsym(handle, "sensorsHalGetSubHal");
+                if (sensorsHalGetSubHalPtr != nullptr) {
+                    std::function<SensorsHalGetSubHalFunc> sensorsHalGetSubHal =
+                            *sensorsHalGetSubHalPtr;
+                    uint32_t version;
+                    ISensorsSubHalV2_0* subHal = sensorsHalGetSubHal(&version);
+                    if (version != SUB_HAL_2_0_VERSION) {
+                        ALOGE("SubHal version was not 2.0 for library: %s",
+                              subHalLibraryFile.c_str());
+                    } else {
+                        ALOGV("Loaded SubHal from library: %s", subHalLibraryFile.c_str());
+                        mSubHalList.push_back(std::make_unique<SubHalWrapperV2_0>(subHal));
+                    }
+                } else {
+                    SensorsHalGetSubHalV2_1Func* getSubHalV2_1Ptr =
+                            (SensorsHalGetSubHalV2_1Func*)dlsym(handle, "sensorsHalGetSubHal_2_1");
+
+                    if (getSubHalV2_1Ptr == nullptr) {
+                        ALOGE("Failed to locate sensorsHalGetSubHal function for library: %s",
+                              subHalLibraryFile.c_str());
+                    } else {
+                        std::function<SensorsHalGetSubHalV2_1Func> sensorsHalGetSubHal_2_1 =
+                                *getSubHalV2_1Ptr;
+                        uint32_t version;
+                        ISensorsSubHalV2_1* subHal = sensorsHalGetSubHal_2_1(&version);
+                        if (version != SUB_HAL_2_1_VERSION) {
+                            ALOGE("SubHal version was not 2.1 for library: %s",
+                                  subHalLibraryFile.c_str());
+                        } else {
+                            ALOGV("Loaded SubHal from library: %s", subHalLibraryFile.c_str());
+                            mSubHalList.push_back(std::make_unique<SubHalWrapperV2_1>(subHal));
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
+
+void HalProxy::initializeSensorList() {
+    for (size_t subHalIndex = 0; subHalIndex < mSubHalList.size(); subHalIndex++) {
+        auto result = mSubHalList[subHalIndex]->getSensorsList([&](const auto& list) {
+            for (SensorInfo sensor : list) {
+                if (!subHalIndexIsClear(sensor.sensorHandle)) {
+                    ALOGE("SubHal sensorHandle's first byte was not 0");
+                } else {
+                    ALOGV("Loaded sensor: %s", sensor.name.c_str());
+                    sensor.sensorHandle = setSubHalIndex(sensor.sensorHandle, subHalIndex);
+                    setDirectChannelFlags(&sensor, mSubHalList[subHalIndex]);
+                    bool keep = patchOplusPickupSensor(sensor) && patchOplusGlanceSensor(sensor);
+                    if (!keep) {
+                        continue;
+                    }
+
+                    mSensors[sensor.sensorHandle] = sensor;
+                }
+            }
+        });
+        if (!result.isOk()) {
+            ALOGE("getSensorsList call failed for SubHal: %s",
+                  mSubHalList[subHalIndex]->getName().c_str());
+        }
+    }
+}
+
+void* HalProxy::getHandleForSubHalSharedObject(const std::string& filename) {
+    static const std::string kSubHalShareObjectLocations[] = {
+            "",  // Default locations will be searched
+#ifdef __LP64__
+            "/vendor/lib64/hw/", "/odm/lib64/hw/"
+#else
+            "/vendor/lib/hw/", "/odm/lib/hw/"
+#endif
+    };
+
+    for (const std::string& dir : kSubHalShareObjectLocations) {
+        void* handle = dlopen((dir + filename).c_str(), RTLD_NOW);
+        if (handle != nullptr) {
+            return handle;
+        }
+    }
+    return nullptr;
+}
+
+void HalProxy::init() {
+    initializeSensorList();
+}
+
+void HalProxy::stopThreads() {
+    mThreadsRun.store(false);
+    if (mEventQueueFlag != nullptr && mEventQueue != nullptr) {
+        size_t numToRead = mEventQueue->availableToRead();
+        std::vector<Event> events(numToRead);
+        mEventQueue->read(events.data(), numToRead);
+        mEventQueueFlag->wake(static_cast<uint32_t>(EventQueueFlagBits::EVENTS_READ));
+    }
+    if (mWakelockQueueFlag != nullptr && mWakeLockQueue != nullptr) {
+        uint32_t kZero = 0;
+        mWakeLockQueue->write(&kZero);
+        mWakelockQueueFlag->wake(static_cast<uint32_t>(WakeLockQueueFlagBits::DATA_WRITTEN));
+    }
+    mWakelockCV.notify_one();
+    mEventQueueWriteCV.notify_one();
+    if (mPendingWritesThread.joinable()) {
+        mPendingWritesThread.join();
+    }
+    if (mWakelockThread.joinable()) {
+        mWakelockThread.join();
+    }
+}
+
+void HalProxy::disableAllSensors() {
+    for (const auto& sensorEntry : mSensors) {
+        int32_t sensorHandle = sensorEntry.first;
+        activate(sensorHandle, false /* enabled */);
+    }
+    std::lock_guard<std::mutex> dynamicSensorsLock(mDynamicSensorsMutex);
+    for (const auto& sensorEntry : mDynamicSensors) {
+        int32_t sensorHandle = sensorEntry.first;
+        activate(sensorHandle, false /* enabled */);
+    }
+}
+
+void HalProxy::startPendingWritesThread(HalProxy* halProxy) {
+    halProxy->handlePendingWrites();
+}
+
+void HalProxy::handlePendingWrites() {
+    // TODO(b/143302327): Find a way to optimize locking strategy maybe using two mutexes instead of
+    // one.
+    std::unique_lock<std::mutex> lock(mEventQueueWriteMutex);
+    while (mThreadsRun.load()) {
+        mEventQueueWriteCV.wait(
+                lock, [&] { return !mPendingWriteEventsQueue.empty() || !mThreadsRun.load(); });
+        if (mThreadsRun.load()) {
+            std::vector<Event>& pendingWriteEvents = mPendingWriteEventsQueue.front().first;
+            size_t numWakeupEvents = mPendingWriteEventsQueue.front().second;
+            size_t eventQueueSize = mEventQueue->getQuantumCount();
+            size_t numToWrite = std::min(pendingWriteEvents.size(), eventQueueSize);
+            lock.unlock();
+            if (!mEventQueue->writeBlocking(
+                        pendingWriteEvents.data(), numToWrite,
+                        static_cast<uint32_t>(EventQueueFlagBits::EVENTS_READ),
+                        static_cast<uint32_t>(EventQueueFlagBits::READ_AND_PROCESS),
+                        kPendingWriteTimeoutNs, mEventQueueFlag)) {
+                ALOGE("Dropping %zu events after blockingWrite failed.", numToWrite);
+                if (numWakeupEvents > 0) {
+                    if (pendingWriteEvents.size() > eventQueueSize) {
+                        decrementRefCountAndMaybeReleaseWakelock(
+                                countNumWakeupEvents(pendingWriteEvents, eventQueueSize));
+                    } else {
+                        decrementRefCountAndMaybeReleaseWakelock(numWakeupEvents);
+                    }
+                }
+            }
+            lock.lock();
+            mSizePendingWriteEventsQueue -= numToWrite;
+            if (pendingWriteEvents.size() > eventQueueSize) {
+                // TODO(b/143302327): Check if this erase operation is too inefficient. It will copy
+                // all the events ahead of it down to fill gap off array at front after the erase.
+                pendingWriteEvents.erase(pendingWriteEvents.begin(),
+                                         pendingWriteEvents.begin() + eventQueueSize);
+            } else {
+                mPendingWriteEventsQueue.pop();
+            }
+        }
+    }
+}
+
+void HalProxy::startWakelockThread(HalProxy* halProxy) {
+    halProxy->handleWakelocks();
+}
+
+void HalProxy::handleWakelocks() {
+    std::unique_lock<std::recursive_mutex> lock(mWakelockMutex);
+    while (mThreadsRun.load()) {
+        mWakelockCV.wait(lock, [&] { return mWakelockRefCount > 0 || !mThreadsRun.load(); });
+        if (mThreadsRun.load()) {
+            int64_t timeLeft;
+            if (sharedWakelockDidTimeout(&timeLeft)) {
+                resetSharedWakelock();
+            } else {
+                uint32_t numWakeLocksProcessed;
+                lock.unlock();
+                bool success = mWakeLockQueue->readBlocking(
+                        &numWakeLocksProcessed, 1, 0,
+                        static_cast<uint32_t>(WakeLockQueueFlagBits::DATA_WRITTEN), timeLeft);
+                lock.lock();
+                if (success) {
+                    decrementRefCountAndMaybeReleaseWakelock(
+                            static_cast<size_t>(numWakeLocksProcessed));
+                }
+            }
+        }
+    }
+    resetSharedWakelock();
+}
+
+bool HalProxy::sharedWakelockDidTimeout(int64_t* timeLeft) {
+    bool didTimeout;
+    int64_t duration = getTimeNow() - mWakelockTimeoutStartTime;
+    if (duration > kWakelockTimeoutNs) {
+        didTimeout = true;
+    } else {
+        didTimeout = false;
+        *timeLeft = kWakelockTimeoutNs - duration;
+    }
+    return didTimeout;
+}
+
+void HalProxy::resetSharedWakelock() {
+    std::lock_guard<std::recursive_mutex> lockGuard(mWakelockMutex);
+    decrementRefCountAndMaybeReleaseWakelock(mWakelockRefCount);
+    mWakelockTimeoutResetTime = getTimeNow();
+}
+
+void HalProxy::postEventsToMessageQueue(const std::vector<Event>& events, size_t numWakeupEvents,
+                                        V2_0::implementation::ScopedWakelock wakelock) {
+    size_t numToWrite = 0;
+    std::lock_guard<std::mutex> lock(mEventQueueWriteMutex);
+    if (wakelock.isLocked()) {
+        incrementRefCountAndMaybeAcquireWakelock(numWakeupEvents);
+    }
+    if (mPendingWriteEventsQueue.empty()) {
+        numToWrite = std::min(events.size(), mEventQueue->availableToWrite());
+        if (numToWrite > 0) {
+            if (mEventQueue->write(events.data(), numToWrite)) {
+                // TODO(b/143302327): While loop if mEventQueue->avaiableToWrite > 0 to possibly fit
+                // in more writes immediately
+                mEventQueueFlag->wake(static_cast<uint32_t>(EventQueueFlagBits::READ_AND_PROCESS));
+            } else {
+                numToWrite = 0;
+            }
+        }
+    }
+    size_t numLeft = events.size() - numToWrite;
+    if (numToWrite < events.size() &&
+        mSizePendingWriteEventsQueue + numLeft <= kMaxSizePendingWriteEventsQueue) {
+        std::vector<Event> eventsLeft(events.begin() + numToWrite, events.end());
+        mPendingWriteEventsQueue.push({eventsLeft, numWakeupEvents});
+        mSizePendingWriteEventsQueue += numLeft;
+        mMostEventsObservedPendingWriteEventsQueue =
+                std::max(mMostEventsObservedPendingWriteEventsQueue, mSizePendingWriteEventsQueue);
+        mEventQueueWriteCV.notify_one();
+    }
+}
+
+bool HalProxy::incrementRefCountAndMaybeAcquireWakelock(size_t delta,
+                                                        int64_t* timeoutStart /* = nullptr */) {
+    if (!mThreadsRun.load()) return false;
+    std::lock_guard<std::recursive_mutex> lockGuard(mWakelockMutex);
+    if (mWakelockRefCount == 0) {
+        acquire_wake_lock(PARTIAL_WAKE_LOCK, kWakelockName);
+        mWakelockCV.notify_one();
+    }
+    mWakelockTimeoutStartTime = getTimeNow();
+    mWakelockRefCount += delta;
+    if (timeoutStart != nullptr) {
+        *timeoutStart = mWakelockTimeoutStartTime;
+    }
+    return true;
+}
+
+void HalProxy::decrementRefCountAndMaybeReleaseWakelock(size_t delta,
+                                                        int64_t timeoutStart /* = -1 */) {
+    if (!mThreadsRun.load()) return;
+    std::lock_guard<std::recursive_mutex> lockGuard(mWakelockMutex);
+    if (delta > mWakelockRefCount) {
+        ALOGE("Decrementing wakelock ref count by %zu when count is %zu",
+              delta, mWakelockRefCount);
+    }
+    if (timeoutStart == -1) timeoutStart = mWakelockTimeoutResetTime;
+    if (mWakelockRefCount == 0 || timeoutStart < mWakelockTimeoutResetTime) return;
+    mWakelockRefCount -= std::min(mWakelockRefCount, delta);
+    if (mWakelockRefCount == 0) {
+        release_wake_lock(kWakelockName);
+    }
+}
+
+void HalProxy::setDirectChannelFlags(SensorInfo* sensorInfo,
+                                     std::shared_ptr<ISubHalWrapperBase> subHal) {
+    bool sensorSupportsDirectChannel =
+            (sensorInfo->flags & (V1_0::SensorFlagBits::MASK_DIRECT_REPORT |
+                                  V1_0::SensorFlagBits::MASK_DIRECT_CHANNEL)) != 0;
+    if (mDirectChannelSubHal == nullptr && sensorSupportsDirectChannel) {
+        mDirectChannelSubHal = subHal;
+    } else if (mDirectChannelSubHal != nullptr && subHal != mDirectChannelSubHal) {
+        // disable direct channel capability for sensors in subHals that are not
+        // the only one we will enable
+        sensorInfo->flags &= ~(V1_0::SensorFlagBits::MASK_DIRECT_REPORT |
+                               V1_0::SensorFlagBits::MASK_DIRECT_CHANNEL);
+    }
+}
+
+std::shared_ptr<ISubHalWrapperBase> HalProxy::getSubHalForSensorHandle(int32_t sensorHandle) {
+    return mSubHalList[extractSubHalIndex(sensorHandle)];
+}
+
+bool HalProxy::isSubHalIndexValid(int32_t sensorHandle) {
+    return extractSubHalIndex(sensorHandle) < mSubHalList.size();
+}
+
+size_t HalProxy::countNumWakeupEvents(const std::vector<Event>& events, size_t n) {
+    size_t numWakeupEvents = 0;
+    for (size_t i = 0; i < n; i++) {
+        int32_t sensorHandle = events[i].sensorHandle;
+        if (mSensors[sensorHandle].flags & static_cast<uint32_t>(V1_0::SensorFlagBits::WAKE_UP)) {
+            numWakeupEvents++;
+        }
+    }
+    return numWakeupEvents;
+}
+
+int32_t HalProxy::clearSubHalIndex(int32_t sensorHandle) {
+    return sensorHandle & (~kSensorHandleSubHalIndexMask);
+}
+
+bool HalProxy::subHalIndexIsClear(int32_t sensorHandle) {
+    return (sensorHandle & kSensorHandleSubHalIndexMask) == 0;
+}
+
+}  // namespace implementation
+}  // namespace V2_1
+}  // namespace sensors
+}  // namespace hardware
+}  // namespace android

aidl/sensors/HalProxyCallback.cpp

@@ -0,0 +1,109 @@
+/*
+ * 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 "HalProxyCallback.h"
+
+#include <cinttypes>
+#include <fstream>
+
+namespace android {
+namespace hardware {
+namespace sensors {
+namespace V2_0 {
+namespace implementation {
+
+static constexpr int32_t kBitsAfterSubHalIndex = 24;
+
+/**
+ * Set the subhal index as first byte of sensor handle and return this modified version.
+ *
+ * @param sensorHandle The sensor handle to modify.
+ * @param subHalIndex The index in the hal proxy of the sub hal this sensor belongs to.
+ *
+ * @return The modified sensor handle.
+ */
+int32_t setSubHalIndex(int32_t sensorHandle, size_t subHalIndex) {
+    return sensorHandle | (static_cast<int32_t>(subHalIndex) << kBitsAfterSubHalIndex);
+}
+
+void HalProxyCallbackBase::postEvents(const std::vector<V2_1::Event>& events,
+                                      ScopedWakelock wakelock) {
+    if (events.empty() || !mCallback->areThreadsRunning()) return;
+    size_t numWakeupEvents;
+    std::vector<V2_1::Event> processedEvents = processEvents(events, &numWakeupEvents);
+    if (numWakeupEvents > 0) {
+        ALOG_ASSERT(wakelock.isLocked(),
+                    "Wakeup events posted while wakelock unlocked for subhal"
+                    " w/ index %" PRId32 ".",
+                    mSubHalIndex);
+    } else {
+        ALOG_ASSERT(!wakelock.isLocked(),
+                    "No Wakeup events posted but wakelock locked for subhal"
+                    " w/ index %" PRId32 ".",
+                    mSubHalIndex);
+    }
+    mCallback->postEventsToMessageQueue(processedEvents, numWakeupEvents, std::move(wakelock));
+}
+
+ScopedWakelock HalProxyCallbackBase::createScopedWakelock(bool lock) {
+    ScopedWakelock wakelock(mRefCounter, lock);
+    return wakelock;
+}
+
+std::vector<V2_1::Event> HalProxyCallbackBase::processEvents(const std::vector<V2_1::Event>& events,
+                                                             size_t* numWakeupEvents) const {
+    *numWakeupEvents = 0;
+    std::vector<V2_1::Event> eventsOut;
+    const char* aodLightModeNode = "/sys/kernel/oplus_display/aod_light_mode_set";
+    for (V2_1::Event event : events) {
+        event.sensorHandle = setSubHalIndex(event.sensorHandle, mSubHalIndex);
+        if (event.sensorType == V2_1::SensorType::DYNAMIC_SENSOR_META) {
+            event.u.dynamic.sensorHandle =
+                    setSubHalIndex(event.u.dynamic.sensorHandle, mSubHalIndex);
+        }
+        const V2_1::SensorInfo& sensor = mCallback->getSensorInfo(event.sensorHandle);
+
+        if (sensor.type == V2_1::SensorType::GLANCE_GESTURE
+            && event.u.scalar != 2) {
+            continue;
+        }
+
+        if (sensor.type == V2_1::SensorType::PICK_UP_GESTURE
+            && event.u.scalar != 0) {
+            continue;
+        }
+
+        if (sensor.typeAsString == "qti.sensor.lux_aod") {
+            std::ofstream nodeFile(aodLightModeNode);
+            if (nodeFile.is_open()) {
+                nodeFile << !event.u.scalar;
+                nodeFile.close();
+            }
+        }
+
+        if ((sensor.flags & V1_0::SensorFlagBits::WAKE_UP) != 0) {
+            (*numWakeupEvents)++;
+        }
+        eventsOut.push_back(event);
+    }
+    return eventsOut;
+}
+
+}  // namespace implementation
+}  // namespace V2_0
+}  // namespace sensors
+}  // namespace hardware
+}  // namespace android

aidl/sensors/android.hardware.sensors-service.oplus-multihal.rc

@@ -0,0 +1,10 @@
+on boot
+    chmod 666 /sys/kernel/oplus_display/aod_light_mode_set
+
+service vendor.sensors-hal-multihal /vendor/bin/hw/android.hardware.sensors-service.oplus-multihal
+    class hal
+    user system
+    group system wakelock context_hub input uhid
+    task_profiles ServiceCapacityLow
+    capabilities BLOCK_SUSPEND
+    rlimit rtprio 10 10

aidl/sensors/android.hardware.sensors.oplus-multihal.xml

@@ -0,0 +1,23 @@
+<!--
+  ~ Copyright (C) 2021 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.
+  -->
+
+<manifest version="1.0" type="device">
+    <hal format="aidl">
+        <name>android.hardware.sensors</name>
+        <version>2</version>
+        <fqname>ISensors/default</fqname>
+    </hal>
+</manifest>

aidl/sensors/service.cpp

@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2021 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 <android-base/logging.h>
+#include <android/binder_manager.h>
+#include <android/binder_process.h>
+#include "HalProxyAidl.h"
+
+using ::aidl::android::hardware::sensors::implementation::HalProxyAidl;
+
+int main() {
+    ABinderProcess_setThreadPoolMaxThreadCount(0);
+
+    // Make a default multihal sensors service
+    auto halProxy = ndk::SharedRefBase::make<HalProxyAidl>();
+    const std::string halProxyName = std::string() + HalProxyAidl::descriptor + "/default";
+    binder_status_t status =
+            AServiceManager_addService(halProxy->asBinder().get(), halProxyName.c_str());
+    CHECK_EQ(status, STATUS_OK);
+
+    ABinderProcess_joinThreadPool();
+    return EXIT_FAILURE;  // should not reach
+}

aidl/vibrator/qti/Vibrator.cpp

@@ -396,6 +396,7 @@ int LedVibratorDevice::on(int32_t timeoutMs) {
     ret |= write_value(LED_DEVICE "/duration", timeoutMs);
     ret |= write_value(LED_DEVICE "/state", "1");
     ret |= write_value(LED_DEVICE "/activate", "1");
+    usleep(100 * 1000);
     ret |= write_value(LED_DEVICE "/activate", "0");
 
     return ret;
@@ -403,11 +404,9 @@ int LedVibratorDevice::on(int32_t timeoutMs) {
 
 int LedVibratorDevice::onWaveform(int waveformIndex) {
     int ret = 0;
-    ret |= write_value(LED_DEVICE "/rtp", "0");
     ret |= write_value(LED_DEVICE "/vmax", "1600");
     ret |= write_value(LED_DEVICE "/waveform_index", waveformIndex);
     ret |= write_value(LED_DEVICE "/brightness", "1");
-    ret |= write_value(LED_DEVICE "/rtp", "0");
     return ret;
 }
 
@@ -491,50 +490,37 @@ ndk::ScopedAStatus Vibrator::perform(Effect effect, EffectStrength es, const std
     if (ledVib.mDetected) {
         switch (effect) {
         case Effect::CLICK:
-            ledVib.write_value(LED_DEVICE "/rtp", "0");
             ledVib.write_value(LED_DEVICE "/vmax", "2500");
             ledVib.write_value(LED_DEVICE "/waveform_index", "1");
-            ledVib.write_value(LED_DEVICE "/brightness", "1");
-            ledVib.write_value(LED_DEVICE "/rtp", "0");
             break;
         case Effect::DOUBLE_CLICK:
-            ledVib.write_value(LED_DEVICE "/rtp", "0");
             ledVib.write_value(LED_DEVICE "/vmax", "2500");
             ledVib.write_value(LED_DEVICE "/waveform_index", "1");
-            ledVib.write_value(LED_DEVICE "/brightness", "1");
-            ledVib.write_value(LED_DEVICE "/rtp", "0");
-            usleep(100 * 1000);
-            ledVib.write_value(LED_DEVICE "/rtp", "0");
-            ledVib.write_value(LED_DEVICE "/vmax", "2500");
-            ledVib.write_value(LED_DEVICE "/waveform_index", "1");
-            ledVib.write_value(LED_DEVICE "/brightness", "1");
-            ledVib.write_value(LED_DEVICE "/rtp", "0");
             break;
         case Effect::TICK:
-            ledVib.write_value(LED_DEVICE "/rtp", "0");
             ledVib.write_value(LED_DEVICE "/vmax", "1400");
             ledVib.write_value(LED_DEVICE "/waveform_index", "1");
-            ledVib.write_value(LED_DEVICE "/brightness", "1");
-            ledVib.write_value(LED_DEVICE "/rtp", "0");
             break;
         case Effect::HEAVY_CLICK:
-            ledVib.write_value(LED_DEVICE "/rtp", "0");
             ledVib.write_value(LED_DEVICE "/vmax", "2500");
             ledVib.write_value(LED_DEVICE "/waveform_index", "4");
-            ledVib.write_value(LED_DEVICE "/brightness", "1");
-            ledVib.write_value(LED_DEVICE "/rtp", "0");
             break;
         case Effect::TEXTURE_TICK:
-            ledVib.write_value(LED_DEVICE "/rtp", "0");
             ledVib.write_value(LED_DEVICE "/vmax", "60");
             ledVib.write_value(LED_DEVICE "/waveform_index", "2");
-            ledVib.write_value(LED_DEVICE "/brightness", "1");
-            ledVib.write_value(LED_DEVICE "/rtp", "0");
             break;
         default:
             return ndk::ScopedAStatus(AStatus_fromExceptionCode(EX_UNSUPPORTED_OPERATION));
         }
 
+        if (effect == Effect::DOUBLE_CLICK) {
+            ledVib.write_value(LED_DEVICE "/brightness", "1");
+            usleep(100 * 1000);
+            ledVib.write_value(LED_DEVICE "/brightness", "1");
+        } else {
+            ledVib.write_value(LED_DEVICE "/brightness", "1");
+        }
+
         // Return magic value for play length so that we won't end up calling on() / off()
         playLengthMs = 150;
     } else {

aidl/vibrator/qti/effect/VibrationEffectConfig.h

@@ -27,28 +27,107 @@
  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+/* Wly THUD as DOUBLE_CLICK */
 static const int8_t effect_1[] = {
-    1,    1,    1,    1,    1,    1,    2,    2,    2,    3,    3,    4,
-    4,    5,    6,    7,    8,    9,    10,   11,   13,   15,   17,   20,
-    22,   26,   29,   33,   38,   43,   49,   56,   64,   71,   76,   81,
-    85,   88,   90,   92,   93,   93,   93,   92,   91,   90,   88,   86,
-    84,   81,   78,   75,   72,   68,   65,   61,   57,   53,   49,   44,
-    40,   36,   31,   27,   22,   17,   12,   7,    2,    -3,   -9,   -15,
-    -21,  -28,  -35,  -43,  -51,  -60,  -71,  -82,  -94,  -103, -112, -118,
-    -123, -126, -127, -127, -127, -127, -124, -121, -117, -112, -107, -101,
-    -94,  -87,  -80,  -72,  -64,  -55,  -47,  -38,  -30,  -21,  -12,  -4,
-    5,    13,   21,   29,   37,   44,   51,   57,   63,   68,   73,   77,
-    81,   84,   86,   88,   89,   89,   88,   86,   84,   81,   78,   75,
-    72,   68,   64,   59,   54,   49,   44,   38,   32,   25,   19,   12,
-    5,    -2,   -9,   -17,  -24,  -32,  -40,  -47,  -55,  -62,  -69,  -76,
-    -83,  -89,  -95,  -101, -106, -111, -115, -119, -122, -124, -125, -125,
-    -125, -123, -120, -116, -111, -104, -95,  -85,  -74,  -65,  -56,  -49,
-    -42,  -35,  -30,  -24,  -19,  -15,  -10,  -6,   -3,   1,    5,    8,
-    11,   15,   18,   21,   24,   26,   29,   32,   34,   37,   39,   41,
-    43,   45,   47,   49,   50,   51,   52,   53,   54,   54,   54,   54,
-    53,   52,   50,   48,   45,   42,   38,   33,   29,   25,   22,   19,
-    17,   14,   12,   11,   9,    8,    7,    6,    5,    4,    4,    3,
-    3,    2,    2,    2,    1,    1,    1,    1,    1,    0
+    0,   5,   10,  15,  20,  25,  29,  34,  38,  43,  47,  51,  55,  58,  62,
+    65,  68,  70,  73,  75,  77,  78,  79,  80,  81,  81,  81,  81,  80,  79,
+    78,  77,  75,  73,  70,  68,  65,  62,  59,  55,  51,  47,  43,  39,  34,
+    30,  25,  20,  15,  10,  5,   0,   -5,  -10, -15, -19, -24, -29, -34, -38,
+    -42, -47, -51, -54, -58, -61, -65, -68, -70, -73, -75, -77, -78, -79, -80,
+    -81, -81, -81, -81, -80, -79, -78, -77, -75, -73, -71, -68, -65, -62, -59,
+    -55, -51, -47, -43, -39, -35, -30, -25, -20, -16, -11, -6,  -1,  4,   9,
+    14,  19,  24,  29,  33,  38,  42,  46,  50,  54,  58,  61,  64,  67,  70,
+    72,  75,  76,  78,  79,  80,  81,  81,  81,  81,  80,  80,  78,  77,  75,
+    73,  71,  68,  65,  62,  59,  55,  52,  48,  44,  39,  35,  30,  26,  21,
+    16,  11,  6,   1,   -4,  -9,  -14, -19, -24, -28, -33, -38, -42, -46, -50,
+    -54, -58, -61, -64, -67, -70, -72, -74, -76, -78, -79, -80, -81, -81, -81,
+    -81, -80, -80, -78, -77, -75, -73, -71, -68, -66, -62, -59, -56, -52, -48,
+    -44, -40, -35, -31, -26, -21, -16, -11, -6,  -1,  4,   9,   14,  19,  23,
+    28,  33,  37,  42,  46,  50,  54,  57,  61,  64,  67,  70,  72,  74,  76,
+    78,  79,  80,  81,  81,  81,  81,  81,  80,  79,  77,  75,  73,  71,  69,
+    66,  63,  59,  56,  52,  48,  44,  40,  35,  31,  26,  21,  16,  12,  7,
+    2,   -3,  -8,  -13, -18, -23, -28, -32, -37, -41, -46, -50, -54, -57, -61,
+    -64, -67, -70, -72, -74, -76, -78, -79, -80, -81, -81, -81, -81, -81, -80,
+    -79, -77, -76, -74, -71, -69, -66, -63, -60, -56, -52, -48, -44, -40, -36,
+    -31, -26, -22, -17, -12, -7,  0,   2,   3,   5,   7,   8,   10,  12,  13,
+    15,  16,  17,  19,  20,  21,  22,  23,  24,  25,  26,  26,  27,  27,  28,
+    28,  28,  28,  28,  28,  27,  27,  26,  26,  25,  24,  23,  22,  21,  20,
+    19,  18,  16,  15,  13,  12,  10,  9,   7,   5,   4,   2,   0,   -2,  -3,
+    -5,  -7,  -8,  -10, -12, -13, -15, -16, -17, -19, -20, -21, -22, -23, -24,
+    -25, -26, -26, -27, -27, -28, -28, -28, -28, -28, -28, -27, -27, -26, -26,
+    -25, -24, -23, -22, -21, -20, -19, -18, -16, -15, -13, -12, -10, -9,  -7,
+    -5,  -4,  -2,  0,   1,   3,   5,   7,   8,   10,  11,  13,  15,  16,  17,
+    19,  20,  21,  22,  23,  24,  25,  26,  26,  27,  27,  28,  28,  28,  28,
+    28,  28,  27,  27,  26,  26,  25,  24,  23,  22,  21,  20,  19,  18,  16,
+    15,  13,  12,  10,  9,   7,   5,   4,   2,   0,   -1,  -3,  -5,  -6,  -8,
+    -10, -11, -13, -14, -16, -17, -19, -20, -21, -22, -23, -24, -25, -26, -26,
+    -27, -27, -28, -28, -28, -28, -28, -28, -27, -27, -26, -26, -25, -24, -24,
+    -23, -21, -20, -19, -18, -16, -15, -14, -12, -10, -9,  -7,  -6,  -4,  -2,
+    0,   1,   3,   5,   6,   8,   10,  11,  13,  14,  16,  17,  18,  20,  21,
+    22,  23,  24,  25,  26,  26,  27,  27,  28,  28,  28,  28,  28,  28,  27,
+    27,  27,  26,  25,  24,  24,  23,  22,  20,  19,  18,  17,  15,  14,  12,
+    11,  9,   7,   6,   4,   2,   1,   -1,  -3,  -5,  -6,  -8,  -10, -11, -13,
+    -14, -16, -17, -18, -20, -21, -22, -23, -24, -25, -25, -26, -27, -27, -28,
+    -28, -28, -28, -28, -28, -27, -27, -27, -26, -25, -24, -24, -23, -22, -20,
+    -19, -18, -17, -15, -14, -12, -11, -9,  -7,  -6,  -4,  -2,  -1,  1,   3,
+    4,   6,   8,   9,   11,  13,  14,  16,  17,  18,  20,  21,  22,  23,  24,
+    25,  25,  26,  27,  27,  27,  28,  28,  28,  28,  28,  27,  27,  27,  26,
+    25,  25,  24,  23,  22,  21,  19,  18,  17,  15,  14,  12,  11,  9,   8,
+    6,   4,   2,   1,   -1,  -3,  -4,  -6,  -8,  -9,  -11, -13, -14, -15, -17,
+    -18, -19, -21, -22, -23, -24, -25, -25, -26, -27, -27, -27, -28, -28, -28,
+    -28, -28, -27, -27, -27, -26, -25, -25, -24, -23, -22, -21, -19, -18, -17,
+    -15, -14, -12, -11, -9,  -8,  -6,  -4,  -3,  -1,  1,   3,   4,   6,   8,
+    9,   11,  12,  14,  15,  17,  18,  19,  21,  22,  23,  24,  25,  25,  26,
+    27,  27,  27,  28,  28,  28,  28,  28,  27,  27,  27,  26,  25,  25,  24,
+    23,  22,  21,  20,  18,  17,  16,  14,  13,  11,  9,   8,   6,   4,   3,
+    1,   -1,  -2,  -4,  -6,  -8,  -9,  -11, -12, -14, -15, -17, -18, -19, -21,
+    -22, -23, -24, -25, -25, -26, -27, -27, -27, -28, -28, -28, -28, -28, -27,
+    -27, -27, -26, -25, -25, -24, -23, -22, -21, -20, -18, -17, -16, -14, -13,
+    -11, -9,  -8,  -6,  -5,  -3,  -1,  1,   2,   4,   6,   7,   9,   11,  12,
+    14,  15,  17,  18,  19,  20,  22,  23,  24,  24,  25,  26,  27,  27,  27,
+    28,  28,  28,  28,  28,  28,  27,  27,  26,  26,  25,  24,  23,  22,  21,
+    20,  18,  17,  16,  14,  13,  11,  10,  8,   6,   5,   3,   1,   -1,  -2,
+    -4,  -6,  -7,  -9,  -11, -12, -14, -15, -17, -18, -19, -20, -22, -23, -24,
+    -24, -25, -26, -27, -27, -27, -28, -28, -28, -28, -28, -28, -27, -27, -26,
+    -26, -25, -24, -23, -22, -21, -20, -19, -17, -16, -14, -13, -11, -10, -8,
+    -6,  -5,  -3,  -1,  0,   2,   4,   6,   7,   9,   10,  12,  14,  15,  16,
+    18,  19,  20,  21,  23,  23,  24,  25,  26,  26,  27,  27,  28,  28,  28,
+    28,  28,  28,  27,  27,  26,  26,  25,  24,  23,  22,  21,  20,  19,  17,
+    16,  14,  13,  11,  10,  8,   7,   5,   3,   1,   0,   -2,  -4,  -5,  -7,
+    -9,  -10, -12, -13, -15, -16, -18, -19, -20, -21, -22, -23, -24, -25, -26,
+    -26, -27, -27, -28, -28, -28, -28, -28, -28, -27, -27, -26, -26, -25, -24,
+    -23, -22, -21, -20, -19, -17, -16, -15, -13, -11, -10, -8,  -7,  -5,  -3,
+    -2,  0,   2,   4,   5,   7,   9,   10,  12,  13,  15,  16,  18,  19,  20,
+    21,  22,  23,  24,  25,  26,  26,  27,  27,  28,  28,  28,  28,  28,  28,
+    27,  27,  26,  26,  25,  24,  23,  22,  21,  20,  19,  17,  16,  15,  13,
+    12,  10,  8,   7,   5,   3,   2,   0,   -2,  -3,  -5,  -7,  -9,  -10, -12,
+    -13, -15, -16, -18, -19, -20, -21, -22, -23, -24, -25, -26, -26, -27, -27,
+    -28, -28, -28, -28, -28, -28, -27, -27, -26, -26, -25, -24, -23, -22, -21,
+    -20, -19, -18, -16, -15, -13, -12, -10, -8,  -7,  -5,  -3,  -2,  0,   2,
+    3,   5,   7,   8,   10,  12,  13,  15,  16,  17,  19,  20,  21,  22,  23,
+    24,  25,  26,  26,  27,  27,  28,  28,  28,  28,  28,  28,  27,  27,  26,
+    26,  25,  24,  23,  22,  21,  20,  19,  18,  16,  15,  13,  12,  10,  9,
+    7,   5,   4,   2,   0,   -2,  -3,  -5,  -7,  -8,  -10, -12, -13, -15, -16,
+    -17, -19, -20, -21, -22, -23, -24, -25, -26, -26, -27, -27, -28, -28, -28,
+    -28, -28, -28, -27, -27, -26, -26, -25, -24, -23, -22, -21, -20, -19, -18,
+    -16, -15, -13, -12, -10, -9,  -7,  -5,  -4,  -2,  0,   -6,  -12, -18, -24,
+    -30, -35, -41, -46, -51, -56, -61, -66, -70, -74, -78, -81, -85, -87, -90,
+    -92, -94, -95, -97, -97, -98, -98, -97, -97, -96, -94, -92, -90, -88, -85,
+    -82, -78, -74, -70, -66, -62, -57, -52, -47, -41, -36, -30, -24, -18, -12,
+    -6,  0,   6,   12,  18,  23,  29,  35,  40,  46,  51,  56,  61,  66,  70,
+    74,  78,  81,  84,  87,  90,  92,  94,  95,  97,  97,  98,  98,  97,  97,
+    96,  94,  92,  90,  88,  85,  82,  78,  75,  71,  66,  62,  57,  52,  47,
+    42,  36,  30,  25,  19,  13,  7,   1,   -5,  -11, -17, -23, -29, -35, -40,
+    -46, -51, -56, -61, -65, -70, -74, -77, -81, -84, -87, -90, -92, -94, -95,
+    -96, -97, -98, -98, -97, -97, -96, -94, -93, -90, -88, -85, -82, -79, -75,
+    -71, -67, -62, -57, -52, -47, -42, -36, -31, -25, -19, -13, -7,  -1,  5,
+    11,  17,  23,  29,  34,  40,  45,  50,  55,  60,  65,  69,  73,  77,  81,
+    84,  87,  90,  92,  94,  95,  96,  97,  98,  98,  97,  97,  96,  94,  93,
+    91,  88,  85,  82,  79,  75,  71,  67,  62,  58,  53,  48,  42,  37,  31,
+    25,  19,  14,  8,   2,   -4,  -10, -16, -22, -28, -34, -39, -45, -50, -55,
+    -60, -65, -69, -73, -77, -81, -84, -87, -89, -92, -94, -95, -96, -97, -98,
+    -98, -98, -97, -96, -95, -93, -91, -88, -86, -82, -79, -75, -71, -67, -63,
+    -58, -53, -48, -43, -37, -31, -26, -20, -14, -8,  0
 };
 
 static const int8_t effect_2[] = {

dolby/Android.bp

@@ -0,0 +1,28 @@
+//
+// Copyright (C) 2017-2021 The LineageOS Project
+//           (C) 2023-24 Paranoid Android
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+android_app {
+    name: "OplusDolby",
+
+    srcs: ["src/**/*.kt"],
+    resource_dirs: ["res"],
+    certificate: "platform",
+    platform_apis: true,
+    system_ext_specific: true,
+    privileged: true,
+
+    overrides: ["MusicFX"],
+    static_libs: [
+        "SettingsLib",
+        "SpaLib",
+        "androidx.activity_activity-compose",
+        "androidx.compose.material3_material3",
+        "androidx.compose.runtime_runtime",
+        "androidx.preference_preference",
+        "org.lineageos.settings.resources",
+    ],
+}

dolby/AndroidManifest.xml

@@ -0,0 +1,79 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright (C) 2023-24 Paranoid Android
+     SPDX-License-Identifier: Apache-2.0
+-->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="co.aospa.dolby.oplus"
+    android:sharedUserId="android.uid.system">
+
+    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
+
+    <application
+        android:icon="@mipmap/ic_launcher"
+        android:allowBackup="false"
+        android:label="@string/dolby_title"
+        android:persistent="true">
+
+        <receiver
+            android:name=".BootCompletedReceiver"
+            android:exported="true">
+            <intent-filter android:priority="1000">
+                <action android:name="android.intent.action.BOOT_COMPLETED" />
+            </intent-filter>
+        </receiver>
+
+        <activity
+            android:name=".DolbyActivity"
+            android:label="@string/dolby_title"
+            android:theme="@style/Theme.SubSettingsBase"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="com.android.settings.action.IA_SETTINGS" />
+                <action android:name="android.service.quicksettings.action.QS_TILE_PREFERENCES"/>
+            </intent-filter>
+            <intent-filter>
+                <action android:name="android.media.action.DISPLAY_AUDIO_EFFECT_CONTROL_PANEL" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.CATEGORY_CONTENT_MUSIC" />
+            </intent-filter>
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+            <meta-data android:name="com.android.settings.category"
+                       android:value="com.android.settings.category.ia.sound" />
+            <meta-data android:name="com.android.settings.summary_uri"
+                       android:value="content://co.aospa.dolby.oplus.summary/dolby" />
+        </activity>
+
+        <activity
+            android:name=".geq.EqualizerActivity"
+            android:label="@string/dolby_preset"
+            android:theme="@style/Theme.SubSettingsBase"
+            android:exported="true" >
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.DEFAULT" />
+            </intent-filter>
+        </activity>
+
+        <service
+            android:name=".DolbyTileService"
+            android:icon="@drawable/ic_dolby_qs"
+            android:label="@string/dolby_title"
+            android:permission="android.permission.BIND_QUICK_SETTINGS_TILE"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.service.quicksettings.action.QS_TILE"/>
+            </intent-filter>
+        </service>
+
+        <provider
+            android:name=".SummaryProvider"
+            android:authorities="co.aospa.dolby.oplus.summary">
+        </provider>
+
+    </application>
+</manifest>
+

dolby/dolby.mk

@@ -0,0 +1,5 @@
+# DolbyManager
+PRODUCT_PACKAGES += \
+    OplusDolby
+
+BOARD_VENDOR_SEPOLICY_DIRS += hardware/oplus/sepolicy/qti/dolby

dolby/res/drawable/ic_dolby.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android" android:height="24dp" android:width="24dp" android:viewportWidth="24" android:viewportHeight="24" android:tint="?android:attr/colorControlNormal">
+    <path android:fillColor="#000000" android:pathData="M1,4.0214C2.2767,4.0743 3.5798,3.9866 4.8252,4.2063C8.8352,4.9133 11.4129,8.3489 11.0507,12.3402C10.7124,16.0695 7.3661,18.9511 3.3484,18.9651C2.5657,18.9678 1.7827,18.9441 1,18.9324L1,4.0214Z" android:strokeColor="#00000000" android:strokeWidth="1" android:fillType="evenOdd"/>
+    <group>
+        <clip-path android:pathData="M12.9332,4l10.0668,0l0,15l-10.0668,0z"/>
+        <path android:fillColor="#000000" android:pathData="M23,4.0924L23,18.8825C19.4973,19.298 16.399,18.6968 14.3366,15.6947C12.5148,13.043 12.4594,10.2265 14.2129,7.5241C16.244,4.394 19.3953,3.7204 23,4.0924" android:strokeColor="#00000000" android:strokeWidth="1" android:fillType="evenOdd"/>
+    </group>
+</vector>

dolby/res/drawable/ic_dolby_qs.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android" android:height="24dp" android:width="24dp" android:viewportWidth="24" android:viewportHeight="24">
+    <path android:fillColor="#191c1e" android:pathData="M1,4.0214C2.2767,4.0743 3.5798,3.9866 4.8252,4.2063C8.8352,4.9133 11.4129,8.3489 11.0507,12.3402C10.7124,16.0695 7.3661,18.9511 3.3484,18.9651C2.5657,18.9678 1.7827,18.9441 1,18.9324L1,4.0214Z" android:strokeColor="#00000000" android:strokeWidth="1" android:fillType="evenOdd"/>
+    <group>
+        <clip-path android:pathData="M12.9332,4l10.0668,0l0,15l-10.0668,0z"/>
+        <path android:fillColor="#191c1e" android:pathData="M23,4.0924L23,18.8825C19.4973,19.298 16.399,18.6968 14.3366,15.6947C12.5148,13.043 12.4594,10.2265 14.2129,7.5241C16.244,4.394 19.3953,3.7204 23,4.0924" android:strokeColor="#00000000" android:strokeWidth="1" android:fillType="evenOdd"/>
+    </group>
+</vector>

dolby/res/drawable/ic_ieq_balanced.xml

@@ -0,0 +1,24 @@
+<vector
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="192dp"
+    android:height="192dp"
+    android:viewportWidth="192"
+    android:viewportHeight="192"
+    android:tint="?android:attr/colorControlNormal">
+    <path
+        android:fillColor="#000000"
+        android:pathData="M 69.584 66.547 L 63.792 70.797 L 38.646 71.697 L 13.5 72.597 L 13.5 89.723 C 13.5 99.143 13.865 111.999 14.313 118.292 L 15.124 129.734 L 178.5 129.734 L 178.5 102.234 L 121.248 102.234 L 99.203 82.234 C 87.078 71.234 76.756 62.248 76.266 62.266 C 75.776 62.282 72.769 64.209 69.584 66.547"
+        android:strokeWidth="1.25"/>
+    <path
+        android:fillColor="#000000"
+        android:pathData="M 69.125 67.065 L 62.875 71.921 L 38.188 71.99 L 13.5 72.06 L 13.504 81.122 C 13.506 86.106 13.876 99.044 14.325 109.872 L 15.141 129.56 L 178.5 129.56 L 178.5 103.31 L 122.126 103.31 L 99.675 82.997 C 87.326 71.826 76.808 62.577 76.299 62.446 C 75.791 62.315 72.563 64.394 69.125 67.065"
+        android:strokeWidth="1.25"/>
+    <path
+        android:fillColor="#000000"
+        android:pathData="M 69.854 67.249 L 63.237 72.187 L 13.311 72.187 L 14.119 84.374 C 14.562 91.077 14.929 104.016 14.932 113.124 L 14.939 129.687 L 178.689 129.687 L 178.689 103.437 L 150.251 103.428 L 121.814 103.418 L 99.143 82.865 L 76.471 62.313 L 69.854 67.249"
+        android:strokeWidth="1.25"/>
+    <path
+        android:fillColor="#000000"
+        android:pathData="M 69.141 67.266 L 63.221 71.609 L 45.888 71.609 C 36.354 71.609 25.238 71.956 21.184 72.378 L 13.813 73.147 L 14.115 93.316 C 14.281 104.408 14.748 117.001 15.151 121.297 L 15.886 129.109 L 178.188 129.109 L 178.188 102.859 L 120.703 102.859 L 98.696 82.859 C 86.594 71.859 76.324 62.873 75.876 62.891 C 75.429 62.907 72.399 64.876 69.141 67.266"
+        android:strokeWidth="1.25"/>
+</vector>

dolby/res/drawable/ic_ieq_detailed.xml

@@ -0,0 +1,24 @@
+<vector
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="192dp"
+    android:height="192dp"
+    android:viewportWidth="192"
+    android:viewportHeight="192"
+    android:tint="?android:attr/colorControlNormal">
+    <path
+        android:fillColor="#000000"
+        android:pathData="M 126.625 63.749 C 120.886 65.812 115.12 69.774 103.5 79.643 C 85.566 94.873 77.207 98.716 62.179 98.637 C 51.344 98.582 42.841 96.091 34.946 90.659 C 29.282 86.763 22.25 77.097 22.25 73.209 C 22.25 71.466 21.259 70.954 17.875 70.954 L 13.5 70.954 L 13.5 129.704 L 178.5 129.704 L 178.5 86.329 L 174.915 81.381 C 169.567 73.999 161.404 67.534 153.865 64.714 C 146.447 61.939 132.988 61.463 126.625 63.749"
+        android:strokeWidth="1.25"/>
+    <path
+        android:fillColor="#000000"
+        android:pathData="M 128.493 63.479 C 122.229 65.384 117.026 68.819 104.59 79.26 C 89.19 92.189 83.945 95.359 73.54 98.024 C 60.438 101.381 44.281 98.268 33.966 90.4 C 28.19 85.994 22.25 77.679 22.25 73.999 C 22.25 71.475 21.634 71.061 17.875 71.061 L 13.5 71.061 L 13.5 129.811 L 178.5 129.811 L 178.494 108.249 L 178.488 86.686 L 173.807 80.541 C 163.119 66.51 143.193 59.008 128.493 63.479"
+        android:strokeWidth="1.25"/>
+    <path
+        android:fillColor="#000000"
+        android:pathData="M 129.75 63.348 C 122.865 65.451 115.829 70.014 103.442 80.413 C 96.136 86.547 86.969 92.947 82.48 95.048 C 60.304 105.426 32.044 97.046 23.267 77.492 C 21.242 72.979 20.328 72.179 17.191 72.179 L 13.5 72.179 L 13.5 129.679 L 178.5 129.679 L 178.456 108.742 C 178.41 86.981 178.329 86.587 172.313 78.669 C 163.463 67.022 142.469 59.466 129.75 63.348"
+        android:strokeWidth="1.25"/>
+    <path
+        android:fillColor="#000000"
+        android:pathData="M 131.184 63.546 C 123.825 64.992 117.559 68.919 103.5 80.894 C 96.969 86.458 87.98 92.824 83.526 95.043 C 75.941 98.821 74.591 99.077 62.25 99.077 C 49.875 99.077 48.564 98.827 40.714 94.962 C 31.655 90.503 24.469 83.298 22.19 76.396 C 21.04 72.909 20.19 72.202 17.152 72.202 L 13.5 72.202 L 13.5 129.702 L 178.5 129.702 L 178.5 87.577 L 174.965 82.702 C 170.49 76.532 163.525 70.403 157.488 67.323 C 153.545 65.312 139.684 61.884 137.333 62.339 C 136.944 62.414 134.176 62.957 131.184 63.546"
+        android:strokeWidth="1.25"/>
+</vector>

dolby/res/drawable/ic_ieq_off.xml

@@ -0,0 +1,13 @@
+<vector
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="192dp"
+    android:height="192dp"
+    android:viewportWidth="192"
+    android:viewportHeight="192"
+    android:tint="?android:attr/colorControlNormal">
+    <path
+        android:fillColor="#000000"
+        android:pathData="M 13.5 96 L 13.5 103.5 L 178.5 103.5 L 178.5 88.5 L 13.5 88.5 L 13.5 96"
+        android:strokeWidth="1.25"
+        android:fillType="evenOdd"/>
+</vector>

dolby/res/drawable/ic_ieq_warm.xml

@@ -0,0 +1,28 @@
+<vector
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="192dp"
+    android:height="192dp"
+    android:viewportWidth="192"
+    android:viewportHeight="192"
+    android:tint="?android:attr/colorControlNormal">
+    <path
+        android:fillColor="#000000"
+        android:pathData="M 48.789 64.919 C 45.865 66.366 40.885 70.429 37.721 73.948 C 28.465 84.243 13.479 116.446 13.479 126.041 L 13.479 129.786 L 95.979 129.786 C 141.354 129.786 178.479 129.486 178.479 129.12 C 178.479 128.753 177.131 125.8 175.483 122.558 C 170.413 112.579 162.723 104.006 155.705 100.509 C 149.673 97.503 148.053 97.286 131.582 97.286 C 105.944 97.286 102.89 95.881 86.335 76.454 C 74.977 63.124 61.056 58.848 48.789 64.919"
+        android:strokeWidth="1.25"
+        android:fillType="evenOdd"/>
+    <path
+        android:fillColor="#000000"
+        android:pathData="M 49.712 64.871 C 40.942 68.842 33.167 78.157 25.45 93.941 C 18.063 109.047 13.462 121.585 13.462 126.604 L 13.462 129.769 L 178.496 129.769 L 176.673 125.407 C 171.895 113.971 159.81 101.317 151.203 98.739 C 148.476 97.921 138.591 97.264 128.942 97.256 C 107.671 97.241 102.106 95.265 93.347 84.617 C 76.128 63.684 64.227 58.297 49.712 64.871"
+        android:strokeWidth="1.25"
+        android:fillType="evenOdd"/>
+    <path
+        android:fillColor="#000000"
+        android:pathData="M 52.781 63.452 C 47.321 65.482 40.256 70.907 35.792 76.496 C 27.971 86.29 13.406 119.09 13.406 126.91 L 13.406 129.502 L 178.552 129.502 L 174.586 122.06 C 169.31 112.162 163.213 105.23 156.113 101.056 C 150.453 97.729 149.705 97.625 130.807 97.53 C 107.81 97.414 103.646 96.04 94.012 85.387 C 80.912 70.9 77.898 68.045 73.171 65.632 C 67.157 62.565 57.846 61.569 52.781 63.452"
+        android:strokeWidth="1.25"
+        android:fillType="evenOdd"/>
+    <path
+        android:fillColor="#000000"
+        android:pathData="M 56.078 63.069 C 44.607 65.852 35.711 75.314 26.246 94.802 C 19.707 108.263 16.537 116.731 14.817 125.334 L 14.005 129.397 L 95.98 129.397 C 165.857 129.397 177.953 129.136 177.953 127.627 C 177.953 124.146 165.22 106.857 160.048 103.314 C 152.515 98.156 150.572 97.791 129.828 97.641 C 111.478 97.507 110.935 97.424 104.33 93.776 C 99.905 91.331 95.316 87.208 91 81.798 C 80.578 68.737 74.351 64.324 64.203 62.812 C 61.797 62.453 58.141 62.568 56.078 63.069"
+        android:strokeWidth="1.25"
+        android:fillType="evenOdd"/>
+</vector>

dolby/res/drawable/ic_launcher_background.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector android:height="108.0dip" android:width="108.0dip" android:viewportWidth="108.0" android:viewportHeight="108.0"
+  xmlns:android="http://schemas.android.com/apk/res/android" xmlns:aapt="http://schemas.android.com/aapt">
+    <group android:scaleX="1.3544992" android:scaleY="1.3544992" android:translateX="-23.22" android:translateY="-23.22">
+        <group>
+            <clip-path android:pathData="M57.01,57.01m-54,0a54,54 0,1 1,108 0a54,54 0,1 1,-108 0" />
+            <path android:fillColor="#ffeaedef" android:pathData="M-1.9,-1.9h117.82v117.82h-117.82z" />
+            <path android:fillColor="@drawable/ic_launcher_background__0" android:pathData="M-1.9,115.92l0,-117.82l117.82,0l-117.82,117.82z" />
+            <path android:fillColor="@drawable/ic_launcher_background__1" android:pathData="M-1.9,-1.9h117.82v117.82h-117.82z" android:strokeAlpha="0.2" android:fillAlpha="0.2" />
+        </group>
+    </group>
+</vector>

dolby/res/drawable/ic_launcher_background__0.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<gradient android:angle="0.0" android:type="linear" android:startX="57.01" android:startY="56.4" android:endX="57.01" android:endY="-1.58"
+  xmlns:android="http://schemas.android.com/apk/res/android" xmlns:aapt="http://schemas.android.com/aapt">
+    <item android:color="#ffffffff" android:offset="0.0" />
+    <item android:color="#fff3f5f6" android:offset="1.0" />
+</gradient>

dolby/res/drawable/ic_launcher_background__1.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<gradient android:angle="0.0" android:type="linear" android:startX="-1.9" android:startY="115.92" android:endX="115.92" android:endY="-1.9"
+  xmlns:android="http://schemas.android.com/apk/res/android" xmlns:aapt="http://schemas.android.com/aapt">
+    <item android:color="#ff80d0ce" android:offset="0.0" />
+    <item android:color="#ff9fa8da" android:offset="1.0" />
+</gradient>

dolby/res/drawable/ic_launcher_foreground.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector android:height="108.0dip" android:width="108.0dip" android:viewportWidth="108.0" android:viewportHeight="108.0"
+  xmlns:android="http://schemas.android.com/apk/res/android">
+    <group android:scaleX="0.84" android:scaleY="0.84" android:translateX="23.76" android:translateY="23.76">
+        <path android:fillColor="#ff465461" android:pathData="M12,19.13h5a16.87,16.87 0,0 1,0 33.74H12Z" />
+        <path android:fillColor="#ff465461" android:pathData="M60,52.87H55a16.87,16.87 0,0 1,0 -33.74h5Z" />
+    </group>
+</vector>

dolby/res/drawable/ic_launcher_mono.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android" android:height="108dp" android:width="108dp" android:viewportWidth="108" android:viewportHeight="108">
+    <path android:fillColor="#000000" android:pathData="M36.6305484,38 C45.6078241,38.1592687 52.837468,45.7082857 52.837468,54.9974325 C52.837468,64.2865794 45.6078241,71.8355964 36.6307694,71.9948651 L32,72 L32,38 L36.6305484,38 Z M36.999,43.017 L36.999,66.977 L37.1225728,66.9701894 C42.9872179,66.559014 47.6837958,61.5395304 47.8337726,55.3050128 L47.837468,54.9974325 C47.837468,48.6211219 43.0833381,43.4425908 37.1223719,43.0246757 L36.999,43.017 Z M71.3694516,38 C62.3921759,38.1592687 55.162532,45.7082857 55.162532,54.9974325 C55.162532,64.2865794 62.3921759,71.8355964 71.3692306,71.9948651 L76,72 L76,38 L71.3694516,38 Z M71.000532,43.017 L71.000532,66.977 L70.8774272,66.9701894 C65.0127821,66.559014 60.3162042,61.5395304 60.1662274,55.3050128 L60.162532,54.9974325 C60.162532,48.6211219 64.9166619,43.4425908 70.8776281,43.0246757 L71.000532,43.017 Z" android:strokeWidth="1"/>
+</vector>

dolby/res/drawable/reset_settings_24px.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="960"
+    android:viewportHeight="960">
+    <path
+        android:fillColor="?android:attr/colorControlNormal"
+        android:pathData="M520,630L520,570L680,570L680,630L520,630ZM580,840L580,790L520,790L520,730L580,730L580,680L640,680L640,840L580,840ZM680,790L680,730L840,730L840,790L680,790ZM720,680L720,520L780,520L780,570L840,570L840,630L780,630L780,680L720,680ZM831,400L748,400Q722,312 649,256Q576,200 480,200Q363,200 281.5,281.5Q200,363 200,480Q200,552 232.5,612Q265,672 320,710L320,600L400,600L400,840L160,840L160,760L254,760Q192,710 156,637.5Q120,565 120,480Q120,405 148.5,339.5Q177,274 225.5,225.5Q274,177 339.5,148.5Q405,120 480,120Q609,120 706.5,199.5Q804,279 831,400Z" />
+</vector>

dolby/res/drawable/save_as_24px.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="960"
+    android:viewportHeight="960">
+  <path
+      android:fillColor="?android:attr/colorControlNormal"
+      android:pathData="M200,840Q167,840 143.5,816.5Q120,793 120,760L120,200Q120,167 143.5,143.5Q167,120 200,120L680,120L840,280L840,492Q821,484 800.5,481.5Q780,479 760,482L760,313L647,200L200,200Q200,200 200,200Q200,200 200,200L200,760Q200,760 200,760Q200,760 200,760L440,760L440,764L440,840L200,840ZM200,200L200,313L200,482Q200,485 200,494.5Q200,504 200,519L200,760L200,760L200,760Q200,760 200,760Q200,760 200,760L200,200Q200,200 200,200Q200,200 200,200ZM520,920L520,797L741,577Q750,568 761,564Q772,560 783,560Q795,560 806,564.5Q817,569 826,578L863,615Q871,624 875.5,635Q880,646 880,657Q880,668 876,679.5Q872,691 863,700L643,920L520,920ZM820,657L820,657L783,620L783,620L820,657ZM580,860L618,860L739,738L721,719L702,701L580,822L580,860ZM721,719L702,701L702,701L739,738L739,738L721,719ZM240,400L600,400L600,240L240,240L240,400ZM480,720Q481,720 482,720Q483,720 484,720L600,605Q600,603 600,602.5Q600,602 600,600Q600,550 565,515Q530,480 480,480Q430,480 395,515Q360,550 360,600Q360,650 395,685Q430,720 480,720Z"/>
+</vector>

dolby/res/layout/ieq_icon_layout.xml

@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+    Copyright (C) 2021 The Android Open Source Project
+              (C) 2024 Paranoid Android
+
+    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.
+  -->
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:id="@android:id/widget_frame"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:minWidth="56dp"
+    android:gravity="end|center_vertical"
+    android:orientation="horizontal"
+    android:paddingLeft="8dp"
+    android:paddingStart="8dp"
+    android:paddingRight="0dp"
+    android:paddingEnd="0dp"
+    android:paddingTop="4dp"
+    android:paddingBottom="4dp">
+
+    <androidx.preference.internal.PreferenceImageView
+        android:id="@+id/ieq_icon"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        app:maxWidth="56dp"
+        app:maxHeight="56dp"/>
+
+</LinearLayout>

dolby/res/mipmap-anydpi/ic_launcher.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon
+  xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+    <monochrome android:drawable="@drawable/ic_launcher_mono" />
+</adaptive-icon>

dolby/res/values/arrays.xml

@@ -0,0 +1,102 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright (C) 2023-24 Paranoid Android
+     SPDX-License-Identifier: Apache-2.0
+-->
+<resources>
+
+    <!-- Dolby Atmos -->
+    <string-array name="dolby_profile_entries">
+        <item>@string/dolby_profile_dynamic</item>
+        <item>@string/dolby_profile_video</item>
+        <item>@string/dolby_profile_music</item>
+        <item>@string/dolby_profile_voice</item>
+    </string-array>
+
+    <string-array name="dolby_profile_values">
+        <item>0</item>
+        <item>1</item>
+        <item>2</item>
+        <item>8</item>
+    </string-array>
+
+    <string-array name="dolby_preset_entries" translatable="false">
+        <item>@string/dolby_preset_default</item>
+        <item>@string/dolby_preset_rock</item>
+        <item>@string/dolby_preset_jazz</item>
+        <item>@string/dolby_preset_pop</item>
+        <item>@string/dolby_preset_classical</item>
+        <item>@string/dolby_preset_hiphop</item>
+        <item>@string/dolby_preset_blues</item>
+        <item>@string/dolby_preset_electronic</item>
+        <item>@string/dolby_preset_metal</item>
+    </string-array>
+
+     <string-array name="dolby_preset_values">
+        <!--
+        <item>0,0,0,0,0,0,0,0,0,0</item>
+        <item>4,1,-2,-0.25,0,-2,0,-2,0.5,4</item>
+        <item>0,0,0,-1,-1,-3,-0.5,0,0,0</item>
+        <item>-2,-0.5,-5,-1,0,0,-0.5,-3,-0.5,0</item>
+        <item>0,0,0,0,0.5,3,1,6,2,6</item>
+        <item>3,0,-3,-0.5,-0.5,-3,-0.5,0,0,2</item>
+        <item>2,2,-6,-2,3,1,0,1,0,2</item>
+        <item>3,1,-1,0,-0.5,-3,-0.5,0,0,0</item>
+        <item>2,0,0,-1.25,-1,-4,0,0,0,0</item>
+        -->
+        <item>0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0</item>
+        <item>60,36,12,-12,-36,-24,-12,-8,-4,-20,-36,-20,-4,-20,-36,-16,4,32,60,60</item>
+        <item>8,8,8,8,8,0,-8,-8,-8,-24,-40,-20,0,4,8,8,8,8,8,8</item>
+        <item>-13,-1,11,-25,-61,-29,3,11,19,19,19,15,11,-9,-29,-9,11,15,19,19</item>
+        <item>-32,-32,-32,-32,-32,-32,-32,-28,-24,-4,16,0,-16,24,64,32,0,32,64,64</item>
+        <item>52,28,4,-20,-44,-24,-4,-4,-4,-24,-44,-24,-4,0,4,4,4,20,36,36</item>
+        <item>28,28,28,-36,-100,-68,-36,4,44,28,12,4,-4,4,12,4,-4,12,28,28</item>
+        <item>50,34,18,2,-14,-6,2,-2,-6,-26,-46,-26,-6,-2,2,2,2,2,2,2</item>
+        <item>40,24,8,8,8,-4,-16,-12,-8,-32,-56,-24,8,8,8,8,8,8,8,8</item>
+    </string-array>
+
+    <string-array name="dolby_dialogue_entries">
+        <item>@string/dolby_off</item>
+        <item>@string/dolby_low</item>
+        <item>@string/dolby_medium</item>
+        <item>@string/dolby_high</item>
+        <item>@string/dolby_max</item>
+    </string-array>
+
+    <string-array name="dolby_dialogue_values">
+        <item>0</item>
+        <item>2</item>
+        <item>6</item>
+        <item>9</item>
+        <item>12</item>
+    </string-array>
+
+    <string-array name="dolby_stereo_entries">
+        <item>@string/dolby_low</item>
+        <item>@string/dolby_medium</item>
+        <item>@string/dolby_high</item>
+        <item>@string/dolby_max</item>
+    </string-array>
+
+    <string-array name="dolby_stereo_values">
+        <item>4</item>
+        <item>24</item>
+        <item>44</item>
+        <item>64</item>
+    </string-array>
+
+    <string-array name="dolby_ieq_entries">
+        <item>@string/dolby_off</item>
+        <item>@string/dolby_balanced</item>
+        <item>@string/dolby_warm</item>
+        <item>@string/dolby_detailed</item>
+    </string-array>
+
+    <string-array name="dolby_ieq_values">
+        <item>0</item>
+        <item>1</item>
+        <item>2</item>
+        <item>3</item>
+    </string-array>
+
+</resources>

dolby/res/values/strings.xml

@@ -0,0 +1,70 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright (C) 2023-24 Paranoid Android
+     SPDX-License-Identifier: Apache-2.0
+-->
+<resources>
+
+    <!-- Dolby Atmos -->
+    <string name="dolby_title">Dolby Atmos</string>
+    <string name="dolby_enable">Use Dolby Atmos</string>
+    <string name="dolby_profile_title">Choose a profile</string>
+    <string name="dolby_preset">Graphic equalizer</string>
+    <string name="dolby_off">Off</string>
+    <string name="dolby_on">On</string>
+    <string name="dolby_low">Low</string>
+    <string name="dolby_medium">Medium</string>
+    <string name="dolby_high">High</string>
+    <string name="dolby_max">Max</string>
+    <string name="dolby_unknown">Unknown</string>
+    <string name="dolby_on_with_profile">On (%1$s)</string>
+    <string name="dolby_category_settings">Settings</string>
+    <string name="dolby_bass_enhancer">Bass enhancer</string>
+    <string name="dolby_dialogue_enhancer">Dialogue enhancer</string>
+    <string name="dolby_spk_virtualizer">Speaker virtualization</string>
+    <string name="dolby_hp_virtualizer">Headphone virtualization</string>
+    <string name="dolby_stereo_widening">Stereo widening</string>
+    <string name="dolby_volume_leveler">Volume leveler</string>
+    <string name="dolby_connect_headphones">Connect headphones</string>
+    <string name="dolby_reset_profile">Reset to defaults</string>
+    <string name="dolby_reset_profile_toast">Succesfully reset settings for %1$s profile</string>
+
+    <!-- Dolby profiles -->
+    <string name="dolby_profile_dynamic">Dynamic</string>
+    <string name="dolby_profile_video">Movie/Video</string>
+    <string name="dolby_profile_music">Music</string>
+    <string name="dolby_profile_voice">Voice</string>
+
+    <!-- Dolby equalizer presets -->
+    <string name="dolby_preset_default">Flat (off)</string>
+    <string name="dolby_preset_rock">Rock</string>
+    <string name="dolby_preset_jazz">Jazz</string>
+    <string name="dolby_preset_pop">Pop</string>
+    <string name="dolby_preset_classical">Classical</string>
+    <string name="dolby_preset_hiphop">Hip Hop</string>
+    <string name="dolby_preset_blues">Blues</string>
+    <string name="dolby_preset_electronic">Electronic</string>
+    <string name="dolby_preset_country">Country</string>
+    <string name="dolby_preset_dance">Dance</string>
+    <string name="dolby_preset_metal">Metal</string>
+
+    <!-- Dolby equalizer UI -->
+    <string name="dolby_geq_slider_label_gain">Gain</string>
+    <string name="dolby_geq_preset">Preset</string>
+    <string name="dolby_geq_preset_name">Preset name</string>
+    <string name="dolby_geq_new_preset">New preset</string>
+    <string name="dolby_geq_rename_preset">Rename preset</string>
+    <string name="dolby_geq_delete_preset">Delete preset</string>
+    <string name="dolby_geq_delete_preset_prompt">Do you want to delete this preset?</string>
+    <string name="dolby_geq_reset_gains">Reset gains</string>
+    <string name="dolby_geq_reset_gains_prompt">Do you want to reset this preset to defaults?</string>
+    <string name="dolby_geq_preset_name_exists">Preset name already exists!</string>
+    <string name="dolby_geq_preset_name_too_long">Preset name is too long!</string>
+
+    <!-- Dolby intelligent EQ -->
+    <string name="dolby_ieq">Intelligent equalizer</string>
+    <string name="dolby_balanced">Balanced</string>
+    <string name="dolby_warm">Warm</string>
+    <string name="dolby_detailed">Detailed</string>
+
+</resources>

dolby/res/xml/dolby_settings.xml

@@ -0,0 +1,77 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright (C) 2023-24 Paranoid Android
+     SPDX-License-Identifier: Apache-2.0
+-->
+<PreferenceScreen
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:title="@string/dolby_title">
+
+    <com.android.settingslib.widget.MainSwitchPreference
+        android:defaultValue="true"
+        android:key="dolby_enable"
+        android:title="@string/dolby_enable" />
+
+    <ListPreference
+        android:key="dolby_profile"
+        android:entries="@array/dolby_profile_entries"
+        android:entryValues="@array/dolby_profile_values"
+        android:defaultValue="0"
+        android:title="@string/dolby_profile_title"
+        android:summary="%s"
+        android:icon="@drawable/ic_dolby" />
+
+    <PreferenceCategory
+        android:title="@string/dolby_category_settings">
+
+        <Preference
+            android:key="dolby_preset"
+            android:title="@string/dolby_preset">
+            <intent
+                android:action="android.intent.action.MAIN"
+                android:targetPackage="co.aospa.dolby.oplus"
+                android:targetClass="co.aospa.dolby.oplus.geq.EqualizerActivity" />
+        </Preference>
+
+        <co.aospa.dolby.oplus.preference.DolbyIeqPreference
+            android:key="dolby_ieq"
+            android:entries="@array/dolby_ieq_entries"
+            android:entryValues="@array/dolby_ieq_values"
+            android:title="@string/dolby_ieq" />
+
+        <SwitchPreferenceCompat
+            android:key="dolby_spk_virtualizer"
+            android:title="@string/dolby_spk_virtualizer" />
+
+        <SwitchPreferenceCompat
+            android:key="dolby_virtualizer"
+            android:title="@string/dolby_hp_virtualizer" />
+
+        <ListPreference
+            android:key="dolby_stereo"
+            android:entries="@array/dolby_stereo_entries"
+            android:entryValues="@array/dolby_stereo_values"
+            android:title="@string/dolby_stereo_widening"
+            android:dependency="dolby_virtualizer" />
+
+        <ListPreference
+            android:key="dolby_dialogue"
+            android:entries="@array/dolby_dialogue_entries"
+            android:entryValues="@array/dolby_dialogue_values"
+            android:title="@string/dolby_dialogue_enhancer" />
+
+        <SwitchPreferenceCompat
+            android:key="dolby_bass"
+            android:title="@string/dolby_bass_enhancer" />
+
+        <SwitchPreferenceCompat
+            android:key="dolby_volume"
+            android:title="@string/dolby_volume_leveler" />
+
+        <Preference
+            android:key="dolby_reset"
+            android:title="@string/dolby_reset_profile" />
+
+    </PreferenceCategory>
+
+</PreferenceScreen>

dolby/src/co/aospa/dolby/oplus/BootCompletedReceiver.kt

@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2023-24 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.oplus
+
+import android.content.BroadcastReceiver
+import android.content.Context
+import android.content.Intent
+import android.util.Log
+
+private const val TAG = "OplusDolby-Boot"
+
+class BootCompletedReceiver : BroadcastReceiver() {
+
+    override fun onReceive(context: Context, intent: Intent) {
+        Log.d(TAG, "Received intent: ${intent.action}")
+        if (intent.action != Intent.ACTION_BOOT_COMPLETED) {
+            return
+        }
+
+        Log.i(TAG, "Boot completed, starting dolby")
+        DolbyController.getInstance(context).onBootCompleted()
+    }
+}

dolby/src/co/aospa/dolby/oplus/DolbyActivity.kt

@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2023-24 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.oplus
+
+import android.os.Bundle
+import co.aospa.dolby.oplus.preference.DolbySettingsFragment
+import com.android.settingslib.collapsingtoolbar.CollapsingToolbarBaseActivity
+
+private const val TAG = "DolbyActivity"
+
+class DolbyActivity : CollapsingToolbarBaseActivity() {
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        fragmentManager.beginTransaction()
+            .replace(com.android.settingslib.collapsingtoolbar.R.id.content_frame, DolbySettingsFragment(), TAG)
+            .commit()
+    }
+}

dolby/src/co/aospa/dolby/oplus/DolbyAudioEffect.kt

@@ -0,0 +1,136 @@
+/*
+ * Copyright (C) 2023-24 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.oplus
+
+import android.media.audiofx.AudioEffect
+import co.aospa.dolby.oplus.DolbyConstants.Companion.dlog
+import co.aospa.dolby.oplus.DolbyConstants.DsParam
+import java.util.UUID
+
+class DolbyAudioEffect(priority: Int, audioSession: Int) : AudioEffect(
+    EFFECT_TYPE_NULL, EFFECT_TYPE_DAP, priority, audioSession
+) {
+
+    var dsOn: Boolean
+        get() = getIntParam(EFFECT_PARAM_ENABLE) == 1
+        set(value) {
+            setIntParam(EFFECT_PARAM_ENABLE, if (value) 1 else 0)
+            enabled = value
+        }
+
+    var profile: Int
+        get() = getIntParam(EFFECT_PARAM_PROFILE)
+        set(value) {
+            setIntParam(EFFECT_PARAM_PROFILE, value)
+        }
+
+    private fun setIntParam(param: Int, value: Int) {
+        dlog(TAG, "setIntParam($param, $value)")
+        val buf = ByteArray(12)
+        int32ToByteArray(param, buf, 0)
+        int32ToByteArray(1, buf, 4)
+        int32ToByteArray(value, buf, 8)
+        checkStatus(setParameter(EFFECT_PARAM_CPDP_VALUES, buf))
+    }
+
+    private fun getIntParam(param: Int): Int {
+        val buf = ByteArray(12)
+        int32ToByteArray(param, buf, 0)
+        checkStatus(getParameter(EFFECT_PARAM_CPDP_VALUES + param, buf))
+        return byteArrayToInt32(buf).also {
+            dlog(TAG, "getIntParam($param): $it")
+        }
+    }
+
+    fun resetProfileSpecificSettings(profile: Int = this.profile) {
+        dlog(TAG, "resetProfileSpecificSettings: profile=$profile")
+        setIntParam(EFFECT_PARAM_RESET_PROFILE_SETTINGS, profile)
+    }
+
+    fun setDapParameter(param: DsParam, values: IntArray, profile: Int = this.profile) {
+        dlog(TAG, "setDapParameter: profile=$profile param=$param")
+        val length = values.size
+        val buf = ByteArray((length + 4) * 4)
+        int32ToByteArray(EFFECT_PARAM_SET_PROFILE_PARAMETER, buf, 0)
+        int32ToByteArray(length + 1, buf, 4)
+        int32ToByteArray(profile, buf, 8)
+        int32ToByteArray(param.id, buf, 12)
+        int32ArrayToByteArray(values, buf, 16)
+        checkStatus(setParameter(EFFECT_PARAM_CPDP_VALUES, buf))
+    }
+
+    fun setDapParameter(param: DsParam, enable: Boolean, profile: Int = this.profile) =
+        setDapParameter(param, intArrayOf(if (enable) 1 else 0), profile)
+
+    fun setDapParameter(param: DsParam, value: Int, profile: Int = this.profile) =
+        setDapParameter(param, intArrayOf(value), profile)
+
+    fun getDapParameter(param: DsParam, profile: Int = this.profile): IntArray {
+        dlog(TAG, "getDapParameter: profile=$profile param=$param")
+        val length = param.length
+        val buf = ByteArray((length + 2) * 4)
+        val p = (param.id shl 16) + (profile shl 8) + EFFECT_PARAM_GET_PROFILE_PARAMETER
+        checkStatus(getParameter(p, buf))
+        return byteArrayToInt32Array(buf, length)
+    }
+
+    fun getDapParameterBool(param: DsParam, profile: Int = this.profile): Boolean =
+        getDapParameter(param, profile)[0] == 1
+
+    fun getDapParameterInt(param: DsParam, profile: Int = this.profile): Int =
+        getDapParameter(param, profile)[0]
+
+    companion object {
+        private const val TAG = "DolbyAudioEffect"
+        private val EFFECT_TYPE_DAP =
+            UUID.fromString("9d4921da-8225-4f29-aefa-39537a04bcaa")
+
+        private const val EFFECT_PARAM_ENABLE = 0
+        private const val EFFECT_PARAM_CPDP_VALUES = 5
+        private const val EFFECT_PARAM_PROFILE = 0xA000000
+        private const val EFFECT_PARAM_SET_PROFILE_PARAMETER = 0x1000000
+        private const val EFFECT_PARAM_GET_PROFILE_PARAMETER = 0x1000005
+        private const val EFFECT_PARAM_RESET_PROFILE_SETTINGS = 0xC000000
+
+        private fun int32ToByteArray(value: Int, dst: ByteArray, index: Int) {
+            var idx = index
+            dst[idx++] = (value and 0xff).toByte()
+            dst[idx++] = ((value ushr 8) and 0xff).toByte()
+            dst[idx++] = ((value ushr 16) and 0xff).toByte()
+            dst[idx] = ((value ushr 24) and 0xff).toByte()
+        }
+
+        private fun byteArrayToInt32(ba: ByteArray): Int {
+            return ((ba[3].toInt() and 0xff) shl 24) or
+                    ((ba[2].toInt() and 0xff) shl 16) or
+                    ((ba[1].toInt() and 0xff) shl 8) or
+                    (ba[0].toInt() and 0xff)
+        }
+
+        private fun int32ArrayToByteArray(src: IntArray, dst: ByteArray, index: Int) {
+            var idx = index
+            for (x in src) {
+                dst[idx++] = (x and 0xff).toByte()
+                dst[idx++] = ((x ushr 8) and 0xff).toByte()
+                dst[idx++] = ((x ushr 16) and 0xff).toByte()
+                dst[idx++] = ((x ushr 24) and 0xff).toByte()
+            }
+        }
+
+        private fun byteArrayToInt32Array(ba: ByteArray, dstLength: Int): IntArray {
+            val srcLength = ba.size shr 2
+            val dst = IntArray(dstLength.coerceAtMost(srcLength))
+            for (i in dst.indices) {
+                dst[i] = ((ba[i * 4 + 3].toInt() and 0xff) shl 24) or
+                        ((ba[i * 4 + 2].toInt() and 0xff) shl 16) or
+                        ((ba[i * 4 + 1].toInt() and 0xff) shl 8) or
+                        (ba[i * 4].toInt() and 0xff)
+            }
+            return dst
+        }
+    }
+}

dolby/src/co/aospa/dolby/oplus/DolbyConstants.kt

@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2023-24 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.oplus
+
+import android.util.Log
+
+class DolbyConstants {
+
+    enum class DsParam(val id: Int, val length: Int = 1) {
+        HEADPHONE_VIRTUALIZER(101),
+        SPEAKER_VIRTUALIZER(102),
+        VOLUME_LEVELER_ENABLE(103),
+        IEQ_PRESET(104),
+        DIALOGUE_ENHANCER_ENABLE(105),
+        DIALOGUE_ENHANCER_AMOUNT(108),
+        GEQ_BAND_GAINS(110, 20),
+        BASS_ENHANCER_ENABLE(111),
+        STEREO_WIDENING_AMOUNT(113);
+
+        override fun toString(): String {
+            return "${name}(${id})"
+        }
+    }
+
+    companion object {
+        const val TAG = "OplusDolby"
+        const val PREF_ENABLE = "dolby_enable"
+        const val PREF_PROFILE = "dolby_profile"
+        const val PREF_PRESET = "dolby_preset"
+        const val PREF_IEQ = "dolby_ieq"
+        const val PREF_HP_VIRTUALIZER = "dolby_virtualizer"
+        const val PREF_SPK_VIRTUALIZER = "dolby_spk_virtualizer"
+        const val PREF_STEREO = "dolby_stereo"
+        const val PREF_DIALOGUE = "dolby_dialogue"
+        const val PREF_BASS = "dolby_bass"
+        const val PREF_VOLUME = "dolby_volume"
+        const val PREF_RESET = "dolby_reset"
+
+        val PROFILE_SPECIFIC_PREFS = setOf(
+            PREF_PRESET,
+            PREF_IEQ,
+            PREF_HP_VIRTUALIZER,
+            PREF_SPK_VIRTUALIZER,
+            PREF_STEREO,
+            PREF_DIALOGUE,
+            PREF_BASS,
+            PREF_VOLUME
+        )
+
+        fun dlog(tag: String, msg: String) {
+            if (Log.isLoggable(TAG, Log.DEBUG)) {
+                Log.d(tag, msg)
+            }
+        }
+    }
+}

dolby/src/co/aospa/dolby/oplus/DolbyController.kt

@@ -0,0 +1,316 @@
+/*
+ * Copyright (C) 2023-24 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.oplus
+
+import android.content.Context
+import android.media.AudioDeviceCallback
+import android.media.AudioDeviceInfo
+import android.media.AudioManager
+import android.media.AudioManager.AudioPlaybackCallback
+import android.media.AudioPlaybackConfiguration
+import android.os.Handler
+import android.util.Log
+import androidx.preference.PreferenceManager
+import co.aospa.dolby.oplus.DolbyConstants.Companion.dlog
+import co.aospa.dolby.oplus.DolbyConstants.DsParam
+import co.aospa.dolby.oplus.R
+
+internal class DolbyController private constructor(
+    private val context: Context
+) {
+    private var dolbyEffect = DolbyAudioEffect(EFFECT_PRIORITY, audioSession = 0)
+    private val audioManager = context.getSystemService(AudioManager::class.java)
+    private val handler = Handler(context.mainLooper)
+
+    // Restore current profile on every media session
+    private val playbackCallback = object : AudioPlaybackCallback() {
+        override fun onPlaybackConfigChanged(configs: List<AudioPlaybackConfiguration>) {
+            val isPlaying = configs.any {
+                it.playerState == AudioPlaybackConfiguration.PLAYER_STATE_STARTED
+            }
+            dlog(TAG, "onPlaybackConfigChanged: isPlaying=$isPlaying")
+            if (isPlaying)
+                setCurrentProfile()
+        }
+    }
+
+    // Restore current profile on audio device change
+    private val audioDeviceCallback = object : AudioDeviceCallback() {
+        override fun onAudioDevicesAdded(addedDevices: Array<AudioDeviceInfo>) {
+            dlog(TAG, "onAudioDevicesAdded")
+            setCurrentProfile()
+        }
+
+        override fun onAudioDevicesRemoved(removedDevices: Array<AudioDeviceInfo>) {
+            dlog(TAG, "onAudioDevicesRemoved")
+            setCurrentProfile()
+        }
+    }
+
+    private var registerCallbacks = false
+        set(value) {
+            if (field == value) return
+            field = value
+            dlog(TAG, "setRegisterCallbacks($value)")
+            if (value) {
+                audioManager!!.registerAudioPlaybackCallback(playbackCallback, handler)
+                audioManager.registerAudioDeviceCallback(audioDeviceCallback, handler)
+            } else {
+                audioManager!!.unregisterAudioPlaybackCallback(playbackCallback)
+                audioManager.unregisterAudioDeviceCallback(audioDeviceCallback)
+            }
+        }
+
+    var dsOn: Boolean
+        get() =
+            dolbyEffect.dsOn.also {
+                dlog(TAG, "getDsOn: $it")
+            }
+        set(value) {
+            dlog(TAG, "setDsOn: $value")
+            checkEffect()
+            dolbyEffect.dsOn = value
+            registerCallbacks = value
+            if (value)
+                setCurrentProfile()
+        }
+
+    var profile: Int
+        get() =
+            dolbyEffect.profile.also {
+                dlog(TAG, "getProfile: $it")
+            }
+        set(value) {
+            dlog(TAG, "setProfile: $value")
+            checkEffect()
+            dolbyEffect.profile = value
+        }
+
+    init {
+        dlog(TAG, "initialized")
+    }
+
+    fun onBootCompleted() {
+        dlog(TAG, "onBootCompleted")
+
+        // Restore our main settings
+        val prefs = PreferenceManager.getDefaultSharedPreferences(context)
+        dsOn = prefs.getBoolean(DolbyConstants.PREF_ENABLE, true)
+
+        context.resources.getStringArray(R.array.dolby_profile_values)
+            .map { it.toInt() }
+            .forEach { profile ->
+                // Reset dolby first to prevent it from loading bad settings
+                dolbyEffect.resetProfileSpecificSettings(profile)
+                // Now restore our profile-specific settings
+                restoreSettings(profile)
+            }
+
+        // Finally restore the current profile.
+        setCurrentProfile()
+    }
+
+    private fun restoreSettings(profile: Int) {
+        dlog(TAG, "restoreSettings(profile=$profile)")
+        val prefs = context.getSharedPreferences("profile_$profile", Context.MODE_PRIVATE)
+        setPreset(
+            prefs.getString(DolbyConstants.PREF_PRESET, getPreset(profile))!!,
+            profile
+        )
+        setIeqPreset(
+            prefs.getString(
+                DolbyConstants.PREF_IEQ,
+                getIeqPreset(profile).toString()
+            )!!.toInt(),
+            profile
+        )
+        setHeadphoneVirtEnabled(
+            prefs.getBoolean(DolbyConstants.PREF_HP_VIRTUALIZER, getHeadphoneVirtEnabled(profile)),
+            profile
+        )
+        setSpeakerVirtEnabled(
+            prefs.getBoolean(DolbyConstants.PREF_SPK_VIRTUALIZER, getSpeakerVirtEnabled(profile)),
+            profile
+        )
+        setStereoWideningAmount(
+            prefs.getString(
+                DolbyConstants.PREF_STEREO,
+                getStereoWideningAmount(profile).toString()
+            )!!.toInt(),
+            profile
+        )
+        setDialogueEnhancerAmount(
+            prefs.getString(
+                DolbyConstants.PREF_DIALOGUE,
+                getDialogueEnhancerAmount(profile).toString()
+            )!!.toInt(),
+            profile
+        )
+        setBassEnhancerEnabled(
+            prefs.getBoolean(DolbyConstants.PREF_BASS, getBassEnhancerEnabled(profile)),
+            profile
+        )
+        setVolumeLevelerEnabled(
+            prefs.getBoolean(DolbyConstants.PREF_VOLUME, getVolumeLevelerEnabled(profile)),
+            profile
+        )
+    }
+
+    private fun checkEffect() {
+        if (!dolbyEffect.hasControl()) {
+            Log.w(TAG, "lost control, recreating effect")
+            dolbyEffect.release()
+            dolbyEffect = DolbyAudioEffect(EFFECT_PRIORITY, audioSession = 0)
+        }
+    }
+
+    private fun setCurrentProfile() {
+        dlog(TAG, "setCurrentProfile")
+        val prefs = PreferenceManager.getDefaultSharedPreferences(context)
+        profile = prefs.getString(DolbyConstants.PREF_PROFILE, "0" /*dynamic*/)!!.toInt()
+    }
+
+    fun getProfileName(): String? {
+        val profile = dolbyEffect.profile.toString()
+        val profiles = context.resources.getStringArray(R.array.dolby_profile_values)
+        val profileIndex = profiles.indexOf(profile)
+        dlog(TAG, "getProfileName: profile=$profile index=$profileIndex")
+        return if (profileIndex == -1) null else context.resources.getStringArray(
+            R.array.dolby_profile_entries
+        )[profileIndex]
+    }
+
+    fun resetProfileSpecificSettings() {
+        dlog(TAG, "resetProfileSpecificSettings")
+        checkEffect()
+        dolbyEffect.resetProfileSpecificSettings()
+        context.deleteSharedPreferences("profile_$profile")
+    }
+
+    fun getPreset(profile: Int = this.profile): String {
+        val gains = dolbyEffect.getDapParameter(DsParam.GEQ_BAND_GAINS, profile)
+        return gains.joinToString(separator = ",").also {
+            dlog(TAG, "getPreset: $it")
+        }
+    }
+
+    fun setPreset(value: String, profile: Int = this.profile) {
+        dlog(TAG, "setPreset: $value")
+        checkEffect()
+        val gains = value.split(",")
+            .map { it.toInt() }
+            .toIntArray()
+        dolbyEffect.setDapParameter(DsParam.GEQ_BAND_GAINS, gains, profile)
+    }
+
+    fun getPresetName(): String {
+        val presets = context.resources.getStringArray(R.array.dolby_preset_values)
+        val presetIndex = presets.indexOf(getPreset())
+        return if (presetIndex == -1) {
+            "Custom"
+        } else {
+            context.resources.getStringArray(
+                R.array.dolby_preset_entries
+            )[presetIndex]
+        }
+    }
+
+    fun getHeadphoneVirtEnabled(profile: Int = this.profile) =
+        dolbyEffect.getDapParameterBool(DsParam.HEADPHONE_VIRTUALIZER, profile).also {
+            dlog(TAG, "getHeadphoneVirtEnabled: $it")
+        }
+
+    fun setHeadphoneVirtEnabled(value: Boolean, profile: Int = this.profile) {
+        dlog(TAG, "setHeadphoneVirtEnabled: $value")
+        checkEffect()
+        dolbyEffect.setDapParameter(DsParam.HEADPHONE_VIRTUALIZER, value, profile)
+    }
+
+    fun getSpeakerVirtEnabled(profile: Int = this.profile) =
+        dolbyEffect.getDapParameterBool(DsParam.SPEAKER_VIRTUALIZER, profile).also {
+            dlog(TAG, "getSpeakerVirtEnabled: $it")
+        }
+
+    fun setSpeakerVirtEnabled(value: Boolean, profile: Int = this.profile) {
+        dlog(TAG, "setSpeakerVirtEnabled: $value")
+        checkEffect()
+        dolbyEffect.setDapParameter(DsParam.SPEAKER_VIRTUALIZER, value, profile)
+    }
+
+    fun getBassEnhancerEnabled(profile: Int = this.profile) =
+        dolbyEffect.getDapParameterBool(DsParam.BASS_ENHANCER_ENABLE, profile).also {
+            dlog(TAG, "getBassEnhancerEnabled: $it")
+        }
+
+    fun setBassEnhancerEnabled(value: Boolean, profile: Int = this.profile) {
+        dlog(TAG, "setBassEnhancerEnabled: $value")
+        checkEffect()
+        dolbyEffect.setDapParameter(DsParam.BASS_ENHANCER_ENABLE, value, profile)
+    }
+
+    fun getVolumeLevelerEnabled(profile: Int = this.profile) =
+        dolbyEffect.getDapParameterBool(DsParam.VOLUME_LEVELER_ENABLE, profile).also {
+            dlog(TAG, "getVolumeLevelerEnabled: $it")
+        }
+
+    fun setVolumeLevelerEnabled(value: Boolean, profile: Int = this.profile) {
+        dlog(TAG, "setVolumeLevelerEnabled: $value")
+        checkEffect()
+        dolbyEffect.setDapParameter(DsParam.VOLUME_LEVELER_ENABLE, value, profile)
+    }
+
+    fun getStereoWideningAmount(profile: Int = this.profile) =
+        dolbyEffect.getDapParameterInt(DsParam.STEREO_WIDENING_AMOUNT, profile).also {
+            dlog(TAG, "getStereoWideningAmount: $it")
+        }
+
+    fun setStereoWideningAmount(value: Int, profile: Int = this.profile) {
+        dlog(TAG, "setStereoWideningAmount: $value")
+        checkEffect()
+        dolbyEffect.setDapParameter(DsParam.STEREO_WIDENING_AMOUNT, value, profile)
+    }
+
+    fun getDialogueEnhancerAmount(profile: Int = this.profile): Int {
+        val enabled = dolbyEffect.getDapParameterBool(DsParam.DIALOGUE_ENHANCER_ENABLE, profile)
+        val amount = if (enabled) {
+            dolbyEffect.getDapParameterInt(DsParam.DIALOGUE_ENHANCER_AMOUNT, profile)
+        } else 0
+        dlog(TAG, "getDialogueEnhancerAmount: enabled=$enabled amount=$amount")
+        return amount
+    }
+
+    fun setDialogueEnhancerAmount(value: Int, profile: Int = this.profile) {
+        dlog(TAG, "setDialogueEnhancerAmount: $value")
+        checkEffect()
+        dolbyEffect.setDapParameter(DsParam.DIALOGUE_ENHANCER_ENABLE, (value > 0), profile)
+        dolbyEffect.setDapParameter(DsParam.DIALOGUE_ENHANCER_AMOUNT, value, profile)
+    }
+
+    fun getIeqPreset(profile: Int = this.profile) =
+        dolbyEffect.getDapParameterInt(DsParam.IEQ_PRESET, profile).also {
+            dlog(TAG, "getIeqPreset: $it")
+        }
+
+    fun setIeqPreset(value: Int, profile: Int = this.profile) {
+        dlog(TAG, "setIeqPreset: $value")
+        checkEffect()
+        dolbyEffect.setDapParameter(DsParam.IEQ_PRESET, value, profile)
+    }
+
+    companion object {
+        private const val TAG = "DolbyController"
+        private const val EFFECT_PRIORITY = 100
+
+        @Volatile
+        private var instance: DolbyController? = null
+
+        fun getInstance(context: Context) =
+            instance ?: synchronized(this) {
+                instance ?: DolbyController(context).also { instance = it }
+            }
+    }
+}

dolby/src/co/aospa/dolby/oplus/DolbyTileService.kt

@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2023-24 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.oplus
+
+import android.service.quicksettings.Tile
+import android.service.quicksettings.TileService
+
+private const val TAG = "DolbyTileService"
+
+class DolbyTileService : TileService() {
+
+    private val dolbyController by lazy { DolbyController.getInstance(applicationContext) }
+
+    override fun onStartListening() {
+        qsTile.apply {
+            state = if (dolbyController.dsOn) Tile.STATE_ACTIVE else Tile.STATE_INACTIVE
+            subtitle = dolbyController.getProfileName() ?: getString(R.string.dolby_unknown)
+            updateTile()
+        }
+        super.onStartListening()
+    }
+
+    override fun onClick() {
+        val isDsOn = dolbyController.dsOn
+        dolbyController.dsOn = !isDsOn
+        qsTile.apply {
+            state = if (isDsOn) Tile.STATE_INACTIVE else Tile.STATE_ACTIVE
+            updateTile()
+        }
+        super.onClick()
+    }
+}

dolby/src/co/aospa/dolby/oplus/SummaryProvider.kt

@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *           (C) 2023-24 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.oplus
+
+import android.content.ContentProvider
+import android.content.ContentValues
+import android.database.Cursor
+import android.net.Uri
+import android.os.Bundle
+import co.aospa.dolby.oplus.R
+import com.android.settingslib.drawer.TileUtils.META_DATA_PREFERENCE_SUMMARY
+
+private const val KEY_DOLBY = "dolby"
+
+/** Provide preference summary for injected items. */
+class SummaryProvider : ContentProvider() {
+
+    override fun call(
+        method: String,
+        arg: String?,
+        extras: Bundle?
+    ): Bundle? {
+        val summary = when (method) {
+            KEY_DOLBY -> getDolbySummary()
+            else -> return null
+        }
+        return Bundle().apply {
+            putString(META_DATA_PREFERENCE_SUMMARY, summary)
+        }
+    }
+
+    override fun onCreate(): Boolean = true
+
+    override fun query(
+        uri: Uri,
+        projection: Array<String>?,
+        selection: String?,
+        selectionArgs: Array<String>?,
+        sortOrder: String?
+    ): Cursor? = null
+
+    override fun getType(uri: Uri): String? = null
+
+    override fun insert(uri: Uri, values: ContentValues?): Uri? = null
+
+    override fun delete(uri: Uri, selection: String?, selectionArgs: Array<String>?): Int = 0
+
+    override fun update(
+        uri: Uri,
+        values: ContentValues?,
+        selection: String?,
+        selectionArgs: Array<String>?
+    ): Int = 0
+
+    private fun getDolbySummary(): String {
+        val dolbyController = DolbyController.getInstance(context!!)
+        if (!dolbyController.dsOn) {
+            return context!!.getString(R.string.dolby_off)
+        }
+        return dolbyController.getProfileName()?.let {
+            context!!.getString(R.string.dolby_on_with_profile, it)
+        } ?: context!!.getString(R.string.dolby_on)
+    }
+
+}

dolby/src/co/aospa/dolby/oplus/geq/EqualizerActivity.kt

@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2024 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.oplus.geq
+
+import android.os.Bundle
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.setContent
+import androidx.activity.viewModels
+import androidx.compose.foundation.layout.padding
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.CompositionLocalProvider
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
+import androidx.navigation.compose.rememberNavController
+import co.aospa.dolby.oplus.R
+import co.aospa.dolby.oplus.geq.ui.EqualizerScreen
+import co.aospa.dolby.oplus.geq.ui.EqualizerViewModel
+import com.android.settingslib.spa.framework.compose.localNavController
+import com.android.settingslib.spa.framework.theme.SettingsTheme
+import com.android.settingslib.spa.widget.scaffold.SettingsScaffold
+
+class EqualizerActivity : ComponentActivity() {
+
+    private val viewModel: EqualizerViewModel by viewModels { EqualizerViewModel.Factory }
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContent {
+            SettingsTheme {
+                MainContent()
+            }
+        }
+    }
+
+    @Composable
+    private fun MainContent() {
+        val navController = rememberNavController()
+        CompositionLocalProvider(navController.localNavController()) {
+            SettingsScaffold(
+                title = stringResource(id = R.string.dolby_preset)
+            ) { paddingValues ->
+                EqualizerScreen(
+                    viewModel = viewModel,
+                    modifier = Modifier.padding(paddingValues)
+                )
+            }
+        }
+    }
+}

dolby/src/co/aospa/dolby/oplus/geq/data/BandGain.kt

@@ -0,0 +1,12 @@
+/*
+ * Copyright (C) 2024 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.oplus.geq.data
+
+data class BandGain(
+    val band: Int,
+    var gain: Int = 0
+)

dolby/src/co/aospa/dolby/oplus/geq/data/EqualizerRepository.kt

@@ -0,0 +1,183 @@
+/*
+ * Copyright (C) 2024 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.oplus.geq.data
+
+import android.content.Context
+import android.content.SharedPreferences
+import android.util.Log
+import co.aospa.dolby.oplus.DolbyConstants.Companion.PREF_PRESET
+import co.aospa.dolby.oplus.DolbyConstants.Companion.dlog
+import co.aospa.dolby.oplus.DolbyController
+import co.aospa.dolby.oplus.R
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.channels.awaitClose
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.callbackFlow
+import kotlinx.coroutines.withContext
+
+class EqualizerRepository(
+    private val context: Context
+) {
+
+    private val dolbyController by lazy { DolbyController.getInstance(context) }
+
+    // Preset is saved as a string of comma separated gains in SharedPreferences
+    // and is unique to each profile ID
+    private val profile = dolbyController.profile
+    private val profileSharedPrefs by lazy {
+        context.getSharedPreferences(
+            "profile_$profile",
+            Context.MODE_PRIVATE
+        )
+    }
+
+    private val presetsSharedPrefs by lazy {
+        context.getSharedPreferences(
+            "presets",
+            Context.MODE_PRIVATE
+        )
+    }
+
+    val builtInPresets: List<Preset> by lazy {
+        val names = context.resources.getStringArray(
+            R.array.dolby_preset_entries
+        )
+        val presets = context.resources.getStringArray(
+            R.array.dolby_preset_values
+        )
+        List(names.size) { index ->
+            Preset(
+                name = names[index],
+                bandGains = deserializeGains(presets[index]),
+            )
+        }
+    }
+
+    val defaultPreset by lazy { builtInPresets[0] } // Flat
+
+    // User defined presets are stored in a SharedPreferences as
+    // key - preset name
+    // value - comma separated string of gains
+    val userPresets: Flow<List<Preset>> = callbackFlow {
+        val listener = SharedPreferences.OnSharedPreferenceChangeListener { _, _ ->
+            dlog(TAG, "presetsSharedPrefs changed")
+            trySend(
+                presetsSharedPrefs.all.map { (key, value) ->
+                    Preset(
+                        name = key,
+                        bandGains = deserializeGains(value.toString()),
+                        isUserDefined = true
+                    )
+                }
+            )
+        }
+
+        presetsSharedPrefs.registerOnSharedPreferenceChangeListener(listener)
+        dlog(TAG, "presetsSharedPrefs registered listener")
+        // trigger an initial emission
+        listener.onSharedPreferenceChanged(presetsSharedPrefs, null)
+
+        awaitClose {
+            presetsSharedPrefs.unregisterOnSharedPreferenceChangeListener(listener)
+            dlog(TAG, "presetsSharedPrefs unregistered listener")
+        }
+    }
+
+    suspend fun getBandGains(): List<BandGain> = withContext(Dispatchers.IO) {
+        val gains = profileSharedPrefs.getString(PREF_PRESET, dolbyController.getPreset())
+        return@withContext if (gains.isNullOrEmpty()) {
+            defaultPreset.bandGains
+        } else {
+            deserializeGains(gains)
+        }.also {
+            dlog(TAG, "getBandGains: $it")
+        }
+    }
+
+    suspend fun setBandGains(bandGains: List<BandGain>) = withContext(Dispatchers.IO) {
+        dlog(TAG, "setBandGains($bandGains)")
+        val gains = serializeGains(bandGains)
+        dolbyController.setPreset(gains)
+        profileSharedPrefs.edit()
+            .putString(PREF_PRESET, gains)
+            .apply()
+    }
+
+    suspend fun addPreset(preset: Preset) = withContext(Dispatchers.IO) {
+        dlog(TAG, "addPreset($preset)")
+        presetsSharedPrefs.edit()
+            .putString(preset.name, serializeGains(preset.bandGains))
+            .apply()
+    }
+
+    suspend fun removePreset(preset: Preset) = withContext(Dispatchers.IO) {
+        dlog(TAG, "removePreset($preset)")
+        presetsSharedPrefs.edit()
+            .remove(preset.name)
+            .apply()
+    }
+
+    private companion object {
+        const val TAG = "EqRepository"
+
+        val tenBandFreqs = intArrayOf(
+            32,
+            64,
+            125,
+            250,
+            500,
+            1000,
+            2000,
+            4000,
+            8000,
+            16000
+        )
+
+        fun deserializeGains(bandGains: String): List<BandGain> {
+            val gains: List<Int> =
+                bandGains.split(",").runCatching {
+                    require(size == 20) {
+                        "Preset must have 20 elements, has only $size!"
+                    }
+                    map { it.toInt() }
+                        .twentyToTenBandGains()
+                }.onFailure { exception ->
+                    Log.e(TAG, "Failed to parse preset", exception)
+                }.getOrDefault(
+                    // fallback to flat
+                    List<Int>(10) { 0 }
+                )
+            return List(10) { index ->
+                BandGain(
+                    band = tenBandFreqs[index],
+                    gain = gains[index]
+                )
+            }
+        }
+
+        fun serializeGains(bandGains: List<BandGain>): String {
+            return bandGains.map { it.gain }
+                .tenToTwentyBandGains()
+                .joinToString(",")
+        }
+
+        // we show only 10 bands in UI however backend requires 20 bands
+        fun List<Int>.tenToTwentyBandGains() =
+            List<Int>(20) { index ->
+                if (index % 2 == 1 && index < 19) {
+                    // every odd element is the average of its surrounding elements
+                    (this[(index - 1) / 2] + this[(index + 1) / 2]) / 2
+                } else {
+                    this[index / 2]
+                }
+            }
+
+        fun List<Int>.twentyToTenBandGains() =
+            // skip every odd element
+            filterIndexed { index, _ -> index % 2 == 0 }
+    }
+}

dolby/src/co/aospa/dolby/oplus/geq/data/Preset.kt

@@ -0,0 +1,14 @@
+/*
+ * Copyright (C) 2024 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.oplus.geq.data
+
+data class Preset(
+    var name: String,
+    val bandGains: List<BandGain>,
+    var isUserDefined: Boolean = false,
+    var isMutated: Boolean = false
+)

dolby/src/co/aospa/dolby/oplus/geq/ui/BandGainSlider.kt

@@ -0,0 +1,101 @@
+/*
+ * Copyright (C) 2024 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.oplus.geq.ui
+
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.width
+import androidx.compose.material3.Slider
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableFloatStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.TransformOrigin
+import androidx.compose.ui.graphics.graphicsLayer
+import androidx.compose.ui.layout.layout
+import androidx.compose.ui.unit.Constraints
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import co.aospa.dolby.oplus.geq.data.BandGain
+
+@Composable
+fun BandGainSlider(
+    bandGain: BandGain,
+    onValueChangeFinished: (Int) -> Unit
+) {
+    // Gain range is of -1->1 in UI, -100->100 in backend, but actually is -10->10 dB.
+
+    // Ensure we update the slider when gain is changed,
+    // for eg. when changing the preset
+    var sliderPosition by remember(bandGain.gain) {
+        mutableFloatStateOf(bandGain.gain / 100f)
+    }
+
+    Column(
+        horizontalAlignment = Alignment.CenterHorizontally,
+    ) {
+        SliderText(
+            "%.1f".format(sliderPosition * 10f)
+        )
+        Slider(
+            value = sliderPosition,
+            onValueChange = { sliderPosition = it },
+            onValueChangeFinished = {
+                onValueChangeFinished((sliderPosition * 100f).toInt())
+            },
+            valueRange = -1f..1f,
+            modifier = Modifier
+                .graphicsLayer {
+                    rotationZ = 270f
+                    transformOrigin = TransformOrigin(0f, 0f)
+                }
+                .layout { measurable, constraints ->
+                    val placeable = measurable.measure(
+                        Constraints(
+                            minWidth = constraints.minHeight,
+                            maxWidth = constraints.maxHeight,
+                            minHeight = constraints.minWidth,
+                            maxHeight = constraints.maxHeight,
+                        )
+                    )
+                    layout(placeable.height, placeable.width) {
+                        placeable.place(-placeable.width, 0)
+                    }
+                }
+                // horizontal and vertical dimensions are inverted due to rotation
+                .width(200.dp)
+                .height(40.dp)
+                .padding(8.dp)
+        )
+        SliderText(
+            with(bandGain.band) {
+                if (this >= 1000) {
+                    "${this / 1000}k"
+                } else {
+                    "$this"
+                }
+            }
+        )
+    }
+}
+
+@Composable
+fun SliderText(
+    text: String,
+    modifier: Modifier = Modifier
+) {
+    Text(
+        text = text,
+        modifier = modifier,
+        fontSize = 12.sp
+    )
+}

dolby/src/co/aospa/dolby/oplus/geq/ui/BandGainSliderLabels.kt

@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2024 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.oplus.geq.ui
+
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import co.aospa.dolby.oplus.R
+
+@Composable
+fun BandGainSliderLabels() {
+    Column(
+        horizontalAlignment = Alignment.End,
+        modifier = Modifier.padding(end = 8.dp)
+    ) {
+        LabelText(
+            stringResource(id = R.string.dolby_geq_slider_label_gain)
+        )
+        Column(
+            modifier = Modifier.height(200.dp),
+            horizontalAlignment = Alignment.End
+        ) {
+            LabelText(
+                "+10 dB",
+                modifier = Modifier.padding(
+                    top = 10.dp
+                )
+            )
+            Spacer(
+                modifier = Modifier.weight(1f)
+            )
+            LabelText("0 dB")
+            Spacer(
+                modifier = Modifier.weight(1f)
+            )
+            LabelText(
+                "-10 dB",
+                modifier = Modifier.padding(
+                    bottom = 10.dp
+                )
+            )
+        }
+        LabelText("Hz")
+    }
+}
+
+@Composable
+fun LabelText(
+    text: String,
+    modifier: Modifier = Modifier
+) {
+    Text(
+        text = text,
+        modifier = modifier,
+        color = MaterialTheme.colorScheme.secondary,
+        fontSize = 12.sp
+    )
+}

dolby/src/co/aospa/dolby/oplus/geq/ui/ConfirmationDialog.kt

@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2024 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.oplus.geq.ui
+
+import androidx.compose.material3.AlertDialog
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.res.stringResource
+
+@Composable
+fun ConfirmationDialog(
+    text: String,
+    onConfirm: () -> Unit,
+    onDismiss: () -> Unit
+) {
+    var showDialog by remember { mutableStateOf(true) }
+    if (!showDialog) {
+        onDismiss()
+        return
+    }
+
+    AlertDialog(
+        onDismissRequest = { showDialog = false },
+        confirmButton = {
+            TextButton(
+                onClick = {
+                    showDialog = false
+                    onConfirm()
+                }
+            ) {
+                Text(
+                    stringResource(id = android.R.string.ok)
+                )
+            }
+        },
+        dismissButton = {
+            TextButton(
+                onClick = { showDialog = false }
+            ) {
+                Text(
+                    stringResource(id = android.R.string.cancel)
+                )
+            }
+        },
+        text = {
+            Text(text)
+        }
+    )
+}

dolby/src/co/aospa/dolby/oplus/geq/ui/EqualizerBands.kt

@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2024 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.oplus.geq.ui
+
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.lazy.LazyRow
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+
+@Composable
+fun EqualizerBands(viewModel: EqualizerViewModel) {
+    val preset by viewModel.preset.collectAsState()
+    val bandGains = preset.bandGains
+
+    LazyRow(
+        verticalAlignment = Alignment.CenterVertically,
+        modifier = Modifier.fillMaxWidth()
+    ) {
+        item {
+            BandGainSliderLabels()
+        }
+        items(bandGains.size) { index ->
+            BandGainSlider(
+                bandGains[index],
+                onValueChangeFinished = {
+                    viewModel.setGain(index, it)
+                }
+            )
+        }
+    }
+}

dolby/src/co/aospa/dolby/oplus/geq/ui/EqualizerScreen.kt

@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2024 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.oplus.geq.ui
+
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxHeight
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.dp
+import com.android.settingslib.spa.framework.theme.settingsBackground
+import com.android.settingslib.spa.framework.theme.SettingsDimension
+
+@Composable
+fun EqualizerScreen(
+    viewModel: EqualizerViewModel,
+    modifier: Modifier = Modifier
+) {
+    Surface(
+        modifier = Modifier
+            .fillMaxSize()
+            .padding(SettingsDimension.itemPadding)
+            .then(modifier),
+        color = MaterialTheme.colorScheme.settingsBackground
+    ) {
+        Column(
+            verticalArrangement = Arrangement.Top,
+            modifier = Modifier.fillMaxHeight()
+        ) {
+            PresetSelector(viewModel = viewModel)
+            EqualizerBands(viewModel = viewModel)
+        }
+    }
+}

dolby/src/co/aospa/dolby/oplus/geq/ui/EqualizerViewModel.kt

@@ -0,0 +1,175 @@
+/*
+ * Copyright (C) 2024 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.oplus.geq.ui
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.ViewModelProvider
+import androidx.lifecycle.viewModelScope
+import androidx.lifecycle.viewmodel.initializer
+import androidx.lifecycle.viewmodel.viewModelFactory
+import co.aospa.dolby.oplus.geq.data.EqualizerRepository
+import co.aospa.dolby.oplus.geq.data.Preset
+import co.aospa.dolby.oplus.DolbyConstants.Companion.dlog
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.drop
+import kotlinx.coroutines.flow.launchIn
+import kotlinx.coroutines.flow.onEach
+import kotlinx.coroutines.launch
+
+const val TAG = "EqViewModel"
+
+class EqualizerViewModel(
+    private val repository: EqualizerRepository
+) : ViewModel() {
+
+    private val _presets = MutableStateFlow(repository.builtInPresets)
+    val presets = _presets.asStateFlow()
+
+    private val _preset = MutableStateFlow(repository.defaultPreset)
+    val preset = _preset.asStateFlow()
+
+    private var presetRestored = false
+
+    init {
+        // Update the list of presets: combined list of user defined presets if any,
+        // and then the built in presets.
+        repository.userPresets
+            .onEach { presets ->
+                dlog(TAG, "updated userPresets: $presets")
+                _presets.value = mutableListOf<Preset>().apply {
+                    addAll(presets)
+                    addAll(repository.builtInPresets)
+                }.toList()
+
+                // We can restore the active preset only after the presets list is populated,
+                // since we do not save the preset name but only its gains.
+                if (!presetRestored) {
+                    val bandGains = repository.getBandGains()
+                    _preset.value = _presets.value.find {
+                        bandGains == it.bandGains
+                    } ?: Preset(
+                        name = "Custom",
+                        bandGains = bandGains
+                    )
+                    dlog(TAG, "restored preset: ${_preset.value}")
+                    presetRestored = true
+                }
+            }
+            .launchIn(viewModelScope)
+
+        // Update the preset in repository everytime we set it here
+        _preset
+            .drop(1) // skip the initial value
+            .onEach {
+                // wait till the active preset is restored
+                if (!presetRestored) {
+                    return@onEach
+                }
+                dlog(TAG, "updated preset: $it")
+                repository.setBandGains(it.bandGains)
+                if (it.isUserDefined) {
+                    repository.addPreset(it)
+                }
+            }
+            .launchIn(viewModelScope)
+    }
+
+    fun reset() {
+        dlog(TAG, "reset()")
+        if (_preset.value.isUserDefined) {
+            // Reset gains to 0
+            _preset.value = _preset.value.copy(
+                bandGains = repository.defaultPreset.bandGains
+            )
+        } else {
+            // Switch to flat preset
+            _preset.value = repository.defaultPreset
+        }
+    }
+
+    fun setPreset(preset: Preset) {
+        dlog(TAG, "setPreset($preset)")
+        _preset.value = preset
+    }
+
+    fun setGain(index: Int, gain: Int) {
+        dlog(TAG, "setGain($index, $gain)")
+        _preset.value = _preset.value.run {
+            copy(
+                name = if (!isUserDefined) "Custom" else name,
+                bandGains = bandGains
+                    .toMutableList()
+                    // create a new object to ensure the flow emits an update.
+                    .apply { this[index] = this[index].copy(gain = gain) }
+                    .toList(),
+                isMutated = true
+            )
+        }
+    }
+
+    // Returns string containing the error message if it failed, otherwise null
+    private fun validatePresetName(name: String): PresetNameValidationError? {
+        // Ensure we don't have another preset with the same name
+        return if (
+            _presets.value
+            .any { it.name.equals(name.trim(), ignoreCase = true) }
+        ) {
+            PresetNameValidationError.NAME_EXISTS
+        } else if (name.length > 50) {
+            PresetNameValidationError.NAME_TOO_LONG
+        } else null
+    }
+
+    fun createNewPreset(name: String): PresetNameValidationError? {
+        dlog(TAG, "createNewPreset($name)")
+        validatePresetName(name)?.let {
+            dlog(TAG, "createNewPreset failed: $it")
+            return it
+        }
+        _preset.value = _preset.value.copy(
+            name = name.trim(),
+            isUserDefined = true,
+            isMutated = false
+        )
+        return null
+    }
+
+    fun renamePreset(preset: Preset, name: String): PresetNameValidationError? {
+        dlog(TAG, "renamePreset($preset, $name)")
+        // create a preset with the new name and same gains
+        createNewPreset(name = name)?.let {
+            dlog(TAG, "renamePreset failed")
+            return it
+        }
+        // and delete the old one.
+        deletePreset(preset, shouldReset = false)
+        return null
+    }
+
+    fun deletePreset(preset: Preset, shouldReset: Boolean = true) {
+        dlog(TAG, "deletePreset($preset)")
+        viewModelScope.launch {
+            repository.removePreset(preset)
+        }
+        if (shouldReset) {
+            _preset.value = repository.defaultPreset
+        }
+    }
+
+    companion object {
+        val Factory = viewModelFactory {
+            initializer {
+                EqualizerViewModel(
+                    repository = EqualizerRepository(
+                        this[ViewModelProvider.AndroidViewModelFactory.APPLICATION_KEY]!!
+                    )
+                )
+            }
+        }
+    }
+}

dolby/src/co/aospa/dolby/oplus/geq/ui/PresetNameDialog.kt

@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2024 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.oplus.geq.ui
+
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material3.AlertDialog
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.unit.dp
+import co.aospa.dolby.oplus.R
+
+@Composable
+fun PresetNameDialog(
+    title: String,
+    presetName: String = "",
+    onPresetNameSet: (String) -> PresetNameValidationError?,
+    onDismissDialog: () -> Unit
+) {
+    var showDialog by remember { mutableStateOf(true) }
+    if (!showDialog) {
+        onDismissDialog()
+        return
+    }
+    var text by remember { mutableStateOf(presetName) }
+    var error by remember { mutableStateOf<PresetNameValidationError?>(null) }
+
+    AlertDialog(
+        onDismissRequest = { showDialog = false },
+        confirmButton = {
+            TextButton(
+                onClick = {
+                    onPresetNameSet(text)?.let {
+                        // validation failed
+                        error = it
+                        return@TextButton
+                    }
+                    // succeeded
+                    showDialog = false
+                    error = null
+                }
+            ) {
+                Text(
+                    stringResource(id = android.R.string.ok)
+                )
+            }
+        },
+        dismissButton = {
+            TextButton(
+                onClick = { showDialog = false }
+            ) {
+                Text(
+                    stringResource(id = android.R.string.cancel)
+                )
+            }
+        },
+        title = { Text(title) },
+        text = {
+            Column {
+                OutlinedTextField(
+                    value = text,
+                    onValueChange = { text = it },
+                    label = {
+                        Text(
+                            stringResource(id = R.string.dolby_geq_preset_name)
+                        )
+                    },
+                    isError = error != null,
+                    singleLine = true
+                )
+                error?.let {
+                    Text(
+                        text = it.toErrorMessage(),
+                        color = MaterialTheme.colorScheme.error,
+                        modifier = Modifier.padding(top = 8.dp)
+                    )
+                }
+            }
+        }
+    )
+}

dolby/src/co/aospa/dolby/oplus/geq/ui/PresetNameValidationError.kt

@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2024 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.oplus.geq.ui
+
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.res.stringResource
+import co.aospa.dolby.oplus.R
+
+enum class PresetNameValidationError {
+    NAME_EXISTS,
+    NAME_TOO_LONG;
+
+    @Composable
+    fun toErrorMessage() =
+        stringResource(
+            id = when (this) {
+                NAME_EXISTS -> R.string.dolby_geq_preset_name_exists
+                NAME_TOO_LONG -> R.string.dolby_geq_preset_name_too_long
+            }
+        )
+}

dolby/src/co/aospa/dolby/oplus/geq/ui/PresetSelector.kt

@@ -0,0 +1,176 @@
+/*
+ * Copyright (C) 2024 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.oplus.geq.ui
+
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Add
+import androidx.compose.material.icons.filled.Delete
+import androidx.compose.material.icons.filled.Edit
+import androidx.compose.material3.DropdownMenuItem
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.ExposedDropdownMenuBox
+import androidx.compose.material3.ExposedDropdownMenuDefaults
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextField
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.focus.focusProperties
+import androidx.compose.ui.graphics.vector.ImageVector
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.res.vectorResource
+import androidx.compose.ui.unit.dp
+import co.aospa.dolby.oplus.R
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun PresetSelector(viewModel: EqualizerViewModel) {
+    val presets by viewModel.presets.collectAsState()
+    val currentPreset by viewModel.preset.collectAsState()
+    var expanded by remember { mutableStateOf(false) }
+    var showNewPresetDialog by remember { mutableStateOf(false) }
+    var showRenamePresetDialog by remember { mutableStateOf(false) }
+    var showDeleteConfirmDialog by remember { mutableStateOf(false) }
+    var showResetConfirmDialog by remember { mutableStateOf(false) }
+
+    Row(
+        modifier = Modifier
+            .fillMaxWidth()
+            .padding(bottom = 24.dp),
+        horizontalArrangement = Arrangement.Start,
+        verticalAlignment = Alignment.CenterVertically
+    ) {
+        ExposedDropdownMenuBox(
+            expanded = expanded,
+            onExpandedChange = { expanded = !expanded },
+            modifier = Modifier
+                .padding(end = 8.dp)
+                .weight(1f)
+        ) {
+            TextField(
+                value = currentPreset.name,
+                onValueChange = { },
+                readOnly = true,
+                label = {
+                    Text(
+                        stringResource(id = R.string.dolby_geq_preset)
+                    )
+                },
+                singleLine = true,
+                trailingIcon = {
+                    ExposedDropdownMenuDefaults.TrailingIcon(
+                        expanded = expanded
+                    )
+                },
+                colors = ExposedDropdownMenuDefaults.textFieldColors(),
+                modifier = Modifier.menuAnchor()
+                    // prevent keyboard from popping up
+                    .focusProperties { canFocus = false }
+            )
+            ExposedDropdownMenu(
+                expanded = expanded,
+                onDismissRequest = { expanded = false }
+            ) {
+                presets.forEach { preset ->
+                    DropdownMenuItem(
+                        text = { Text(text = preset.name) },
+                        onClick = {
+                            viewModel.setPreset(preset)
+                            expanded = false
+                        }
+                    )
+                }
+            }
+        }
+
+        TooltipIconButton(
+            icon = ImageVector.vectorResource(
+                id = R.drawable.save_as_24px
+            ),
+            text = stringResource(id = R.string.dolby_geq_new_preset),
+            onClick = { showNewPresetDialog = true }
+        )
+
+        if (currentPreset.isUserDefined) {
+            TooltipIconButton(
+                icon = Icons.Default.Edit,
+                text = stringResource(id = R.string.dolby_geq_rename_preset),
+                onClick = { showRenamePresetDialog = true }
+            )
+            TooltipIconButton(
+                icon = Icons.Default.Delete,
+                text = stringResource(id = R.string.dolby_geq_delete_preset),
+                onClick = { showDeleteConfirmDialog = true }
+            )
+        }
+
+        TooltipIconButton(
+            icon = ImageVector.vectorResource(
+                id = R.drawable.reset_settings_24px
+            ),
+            text = stringResource(id = R.string.dolby_geq_reset_gains),
+            onClick = {
+                if (currentPreset.isUserDefined) {
+                    showResetConfirmDialog = true
+                } else {
+                    viewModel.reset()
+                }
+            }
+        )
+    }
+
+    // Dialogs
+
+    if (showNewPresetDialog) {
+        PresetNameDialog(
+            title = stringResource(id = R.string.dolby_geq_new_preset),
+            onPresetNameSet = {
+                return@PresetNameDialog viewModel.createNewPreset(name = it)
+            },
+            onDismissDialog = { showNewPresetDialog = false }
+        )
+    }
+
+    if (showRenamePresetDialog) {
+        PresetNameDialog(
+            title = stringResource(id = R.string.dolby_geq_rename_preset),
+            presetName = currentPreset.name,
+            onPresetNameSet = {
+                return@PresetNameDialog viewModel.renamePreset(
+                    preset = currentPreset,
+                    name = it
+                )
+            },
+            onDismissDialog = { showRenamePresetDialog = false }
+        )
+    }
+
+    if (showDeleteConfirmDialog) {
+        ConfirmationDialog(
+            text = stringResource(id = R.string.dolby_geq_delete_preset_prompt),
+            onConfirm = { viewModel.deletePreset(currentPreset) },
+            onDismiss = { showDeleteConfirmDialog = false }
+        )
+    }
+
+    if (showResetConfirmDialog) {
+        ConfirmationDialog(
+            text = stringResource(id = R.string.dolby_geq_reset_gains_prompt),
+            onConfirm = { viewModel.reset() },
+            onDismiss = { showResetConfirmDialog = false }
+        )
+    }
+}

dolby/src/co/aospa/dolby/oplus/geq/ui/TooltipIconButton.kt

@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2024 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.oplus.geq.ui
+
+import androidx.compose.foundation.layout.size
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.Text
+import androidx.compose.material3.TooltipBox
+import androidx.compose.material3.TooltipDefaults
+import androidx.compose.material3.rememberTooltipState
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.vector.ImageVector
+import androidx.compose.ui.unit.dp
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun TooltipIconButton(
+    icon: ImageVector,
+    text: String,
+    onClick: () -> Unit
+) {
+    TooltipBox(
+        positionProvider = TooltipDefaults.rememberTooltipPositionProvider(),
+        tooltip = {
+            Text(text)
+        },
+        state = rememberTooltipState()
+    ) {
+        IconButton(
+            onClick = onClick
+        ) {
+            Icon(
+                imageVector = icon,
+                contentDescription = text,
+                modifier = Modifier.size(24.dp)
+            )
+        }
+    }
+}

dolby/src/co/aospa/dolby/oplus/preference/DolbyIeqPreference.kt

@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2024 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.oplus.preference
+
+import android.content.Context
+import android.util.AttributeSet
+import android.view.View
+import android.widget.ImageView
+import androidx.appcompat.content.res.AppCompatResources
+import androidx.preference.ListPreference
+import androidx.preference.PreferenceViewHolder
+import co.aospa.dolby.oplus.R
+
+// Preference with icon on the right side
+class DolbyIeqPreference(
+    context: Context,
+    attrs: AttributeSet?,
+) : ListPreference(context, attrs) {
+
+    init {
+        widgetLayoutResource = R.layout.ieq_icon_layout
+    }
+
+    override fun onBindViewHolder(holder: PreferenceViewHolder) {
+        super.onBindViewHolder(holder)
+        val iconView = holder.findViewById(R.id.ieq_icon)!! as ImageView
+        val icon = AppCompatResources.getDrawable(context, getIeqIconResId())
+        iconView.setImageDrawable(icon)
+    }
+
+    private fun getIeqIconResId(): Int {
+        val ieqValue = value?.toIntOrNull() ?: 0
+        return when (ieqValue) {
+            0 -> R.drawable.ic_ieq_off
+            1 -> R.drawable.ic_ieq_balanced
+            2 -> R.drawable.ic_ieq_warm
+            3 -> R.drawable.ic_ieq_detailed
+            else -> 0 // should never hit this!
+        }
+    }
+}

dolby/src/co/aospa/dolby/oplus/preference/DolbyPreferenceStore.kt

@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2024 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.oplus.preference
+
+import android.content.Context
+import android.content.SharedPreferences
+import androidx.preference.PreferenceDataStore
+import androidx.preference.PreferenceManager
+import co.aospa.dolby.oplus.DolbyConstants
+
+class DolbyPreferenceStore(
+    private val context: Context
+) : PreferenceDataStore() {
+
+    private val defaultSharedPrefs by lazy {
+        PreferenceManager.getDefaultSharedPreferences(context)
+    }
+
+    private lateinit var profileSharedPrefs: SharedPreferences
+
+    var profile = 0
+        set(value) {
+            field = value
+            profileSharedPrefs = context.getSharedPreferences(
+                "profile_$value",
+                Context.MODE_PRIVATE
+            )
+        }
+
+    private fun getSharedPreferences(key: String) =
+        if (DolbyConstants.PROFILE_SPECIFIC_PREFS.contains(key)) {
+            profileSharedPrefs
+        } else {
+            defaultSharedPrefs
+        }
+
+    override fun putBoolean(key: String, value: Boolean) =
+        getSharedPreferences(key).edit()
+            .putBoolean(key, value)
+            .apply()
+
+    override fun getBoolean(key: String, defValue: Boolean) =
+        getSharedPreferences(key).getBoolean(key, defValue)
+
+    override fun putInt(key: String, value: Int) =
+        getSharedPreferences(key).edit()
+            .putInt(key, value)
+            .apply()
+
+    override fun getInt(key: String, defValue: Int) =
+        getSharedPreferences(key).getInt(key, defValue)
+
+    override fun putString(key: String, value: String?) =
+        getSharedPreferences(key).edit()
+            .putString(key, value)
+            .apply()
+
+    override fun getString(key: String, defValue: String?) =
+        getSharedPreferences(key).getString(key, defValue)
+}

dolby/src/co/aospa/dolby/oplus/preference/DolbySettingsFragment.kt

@@ -0,0 +1,299 @@
+/*
+ * Copyright (C) 2023-24 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.oplus.preference
+
+import android.media.AudioAttributes
+import android.media.AudioDeviceCallback
+import android.media.AudioDeviceInfo
+import android.media.AudioManager
+import android.os.Bundle
+import android.os.Handler
+import android.widget.CompoundButton
+import android.widget.CompoundButton.OnCheckedChangeListener
+import android.widget.Toast
+import androidx.preference.ListPreference
+import androidx.preference.Preference
+import androidx.preference.Preference.OnPreferenceChangeListener
+import androidx.preference.PreferenceFragment
+import androidx.preference.SwitchPreferenceCompat
+import co.aospa.dolby.oplus.DolbyConstants
+import co.aospa.dolby.oplus.DolbyConstants.Companion.PREF_BASS
+import co.aospa.dolby.oplus.DolbyConstants.Companion.PREF_DIALOGUE
+import co.aospa.dolby.oplus.DolbyConstants.Companion.PREF_ENABLE
+import co.aospa.dolby.oplus.DolbyConstants.Companion.PREF_HP_VIRTUALIZER
+import co.aospa.dolby.oplus.DolbyConstants.Companion.PREF_IEQ
+import co.aospa.dolby.oplus.DolbyConstants.Companion.PREF_PRESET
+import co.aospa.dolby.oplus.DolbyConstants.Companion.PREF_PROFILE
+import co.aospa.dolby.oplus.DolbyConstants.Companion.PREF_RESET
+import co.aospa.dolby.oplus.DolbyConstants.Companion.PREF_SPK_VIRTUALIZER
+import co.aospa.dolby.oplus.DolbyConstants.Companion.PREF_STEREO
+import co.aospa.dolby.oplus.DolbyConstants.Companion.PREF_VOLUME
+import co.aospa.dolby.oplus.DolbyConstants.Companion.dlog
+import co.aospa.dolby.oplus.DolbyController
+import co.aospa.dolby.oplus.R
+import com.android.settingslib.widget.MainSwitchPreference
+
+class DolbySettingsFragment : PreferenceFragment(),
+    OnPreferenceChangeListener, CompoundButton.OnCheckedChangeListener {
+
+    private val switchBar by lazy {
+        findPreference<MainSwitchPreference>(PREF_ENABLE)!!
+    }
+    private val profilePref by lazy {
+        findPreference<ListPreference>(PREF_PROFILE)!!
+    }
+    private val presetPref by lazy {
+        findPreference<Preference>(PREF_PRESET)!!
+    }
+    private val ieqPref by lazy {
+        findPreference<DolbyIeqPreference>(PREF_IEQ)!!
+    }
+    private val stereoPref by lazy {
+        findPreference<ListPreference>(PREF_STEREO)!!
+    }
+    private val dialoguePref by lazy {
+        findPreference<ListPreference>(PREF_DIALOGUE)!!
+    }
+    private val bassPref by lazy {
+        findPreference<SwitchPreferenceCompat>(PREF_BASS)!!
+    }
+    private val hpVirtPref by lazy {
+        findPreference<SwitchPreferenceCompat>(PREF_HP_VIRTUALIZER)!!
+    }
+    private val spkVirtPref by lazy {
+        findPreference<SwitchPreferenceCompat>(PREF_SPK_VIRTUALIZER)!!
+    }
+    private val volumePref by lazy {
+        findPreference<SwitchPreferenceCompat>(PREF_VOLUME)!!
+    }
+    private val resetPref by lazy {
+        findPreference<Preference>(PREF_RESET)!!
+    }
+
+    private val dolbyController by lazy { DolbyController.getInstance(context) }
+    private val audioManager by lazy { context.getSystemService(AudioManager::class.java) }
+    private val handler = Handler()
+
+    private var isOnSpeaker = true
+        set(value) {
+            if (field == value) return
+            field = value
+            dlog(TAG, "setIsOnSpeaker($value)")
+            updateProfileSpecificPrefs()
+        }
+
+    private val audioDeviceCallback = object : AudioDeviceCallback() {
+        override fun onAudioDevicesAdded(addedDevices: Array<AudioDeviceInfo>) {
+            dlog(TAG, "onAudioDevicesAdded")
+            updateSpeakerState()
+        }
+
+        override fun onAudioDevicesRemoved(removedDevices: Array<AudioDeviceInfo>) {
+            dlog(TAG, "onAudioDevicesRemoved")
+            updateSpeakerState()
+        }
+    }
+
+    override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
+        dlog(TAG, "onCreatePreferences")
+        addPreferencesFromResource(R.xml.dolby_settings)
+
+        val profile = dolbyController.profile
+        preferenceManager.preferenceDataStore = DolbyPreferenceStore(context).also {
+            it.profile = profile
+        }
+
+        val dsOn = dolbyController.dsOn
+        switchBar.addOnSwitchChangeListener(this)
+        switchBar.setChecked(dsOn)
+
+        profilePref.onPreferenceChangeListener = this
+        profilePref.setEnabled(dsOn)
+        profilePref.apply {
+            if (entryValues.contains(profile.toString())) {
+                summary = "%s"
+                value = profile.toString()
+            } else {
+                summary = context.getString(R.string.dolby_unknown)
+            }
+        }
+
+        hpVirtPref.onPreferenceChangeListener = this
+        spkVirtPref.onPreferenceChangeListener = this
+        stereoPref.onPreferenceChangeListener = this
+        dialoguePref.onPreferenceChangeListener = this
+        bassPref.onPreferenceChangeListener = this
+        volumePref.onPreferenceChangeListener = this
+        ieqPref.onPreferenceChangeListener = this
+
+        resetPref.setOnPreferenceClickListener {
+            dolbyController.resetProfileSpecificSettings()
+            updateProfileSpecificPrefs()
+            Toast.makeText(
+                context,
+                context.getString(R.string.dolby_reset_profile_toast, profilePref.summary),
+                Toast.LENGTH_SHORT
+            ).show()
+            true
+        }
+
+        audioManager!!.registerAudioDeviceCallback(audioDeviceCallback, handler)
+        updateSpeakerState()
+        updateProfileSpecificPrefs()
+    }
+
+    override fun onDestroyView() {
+        dlog(TAG, "onDestroyView")
+        audioManager!!.unregisterAudioDeviceCallback(audioDeviceCallback)
+        super.onDestroyView()
+    }
+
+    override fun onResume() {
+        super.onResume()
+        updateProfileSpecificPrefs()
+    }
+
+    override fun onPreferenceChange(preference: Preference, newValue: Any): Boolean {
+        dlog(TAG, "onPreferenceChange: key=${preference.key} value=$newValue")
+        when (preference.key) {
+            PREF_PROFILE -> {
+                val profile = newValue.toString().toInt()
+                dolbyController.profile = profile
+                (preferenceManager.preferenceDataStore as DolbyPreferenceStore).profile = profile
+                updateProfileSpecificPrefs()
+            }
+
+            PREF_SPK_VIRTUALIZER -> {
+                dolbyController.setSpeakerVirtEnabled(newValue as Boolean)
+            }
+
+            PREF_HP_VIRTUALIZER -> {
+                dolbyController.setHeadphoneVirtEnabled(newValue as Boolean)
+            }
+
+            PREF_STEREO -> {
+                dolbyController.setStereoWideningAmount(newValue.toString().toInt())
+            }
+
+            PREF_DIALOGUE -> {
+                dolbyController.setDialogueEnhancerAmount(newValue.toString().toInt())
+            }
+
+            PREF_BASS -> {
+                dolbyController.setBassEnhancerEnabled(newValue as Boolean)
+            }
+
+            PREF_VOLUME -> {
+                dolbyController.setVolumeLevelerEnabled(newValue as Boolean)
+            }
+
+            PREF_IEQ -> {
+                dolbyController.setIeqPreset(newValue.toString().toInt())
+            }
+
+            else -> return false
+        }
+        return true
+    }
+
+    override fun onCheckedChanged(buttonView: CompoundButton, isChecked: Boolean) {
+        dlog(TAG, "onCheckedChanged($isChecked)")
+        dolbyController.dsOn = isChecked
+        profilePref.setEnabled(isChecked)
+        updateProfileSpecificPrefs()
+    }
+
+    private fun updateSpeakerState() {
+        val device = audioManager!!.getDevicesForAttributes(ATTRIBUTES_MEDIA)[0]
+        isOnSpeaker = (device.type == AudioDeviceInfo.TYPE_BUILTIN_SPEAKER)
+    }
+
+    private fun updateProfileSpecificPrefs() {
+        val unknownRes = context.getString(R.string.dolby_unknown)
+        val headphoneRes = context.getString(R.string.dolby_connect_headphones)
+        val dsOn = dolbyController.dsOn
+        val currentProfile = dolbyController.profile
+
+        dlog(
+            TAG, "updateProfileSpecificPrefs: dsOn=$dsOn currentProfile=$currentProfile"
+                    + " isOnSpeaker=$isOnSpeaker"
+        )
+
+        val enable = dsOn && (currentProfile != -1)
+        presetPref.setEnabled(enable)
+        spkVirtPref.setEnabled(enable)
+        ieqPref.setEnabled(enable)
+        dialoguePref.setEnabled(enable)
+        volumePref.setEnabled(enable)
+        resetPref.setEnabled(enable)
+        hpVirtPref.setEnabled(enable && !isOnSpeaker)
+        stereoPref.setEnabled(enable && !isOnSpeaker)
+        bassPref.setEnabled(enable && !isOnSpeaker)
+
+        if (!enable) return
+
+        presetPref.summary = dolbyController.getPresetName()
+
+        val ieqValue = dolbyController.getIeqPreset(currentProfile)
+        ieqPref.apply {
+            if (entryValues.contains(ieqValue.toString())) {
+                summary = "%s"
+                value = ieqValue.toString()
+            } else {
+                summary = unknownRes
+            }
+        }
+
+        val deValue = dolbyController.getDialogueEnhancerAmount(currentProfile).toString()
+        dialoguePref.apply {
+            if (entryValues.contains(deValue)) {
+                summary = "%s"
+                value = deValue
+            } else {
+                summary = unknownRes
+            }
+        }
+
+        spkVirtPref.setChecked(dolbyController.getSpeakerVirtEnabled(currentProfile))
+        volumePref.setChecked(dolbyController.getVolumeLevelerEnabled(currentProfile))
+
+        // below prefs are not enabled on loudspeaker
+        if (isOnSpeaker) {
+            stereoPref.summary = headphoneRes
+            bassPref.summary = headphoneRes
+            hpVirtPref.summary = headphoneRes
+            return
+        }
+
+        val swValue = dolbyController.getStereoWideningAmount(currentProfile).toString()
+        stereoPref.apply {
+            if (entryValues.contains(swValue)) {
+                summary = "%s"
+                value = swValue
+            } else {
+                summary = unknownRes
+            }
+        }
+
+        bassPref.apply {
+            setChecked(dolbyController.getBassEnhancerEnabled(currentProfile))
+            summary = null
+        }
+
+        hpVirtPref.apply {
+            setChecked(dolbyController.getHeadphoneVirtEnabled(currentProfile))
+            summary = null
+        }
+    }
+
+    companion object {
+        private const val TAG = "DolbySettingsFragment"
+        private val ATTRIBUTES_MEDIA = AudioAttributes.Builder()
+            .setUsage(AudioAttributes.USAGE_MEDIA)
+            .build()
+    }
+}

overlay/qssi/FrameworksResCommon/res/values/config.xml

@@ -27,12 +27,18 @@
          turned off and the screen off animation has been performed. -->
     <bool name="config_dozeAfterScreenOffByDefault">true</bool>
 
+    <!-- Doze: should the TYPE_PICK_UP_GESTURE sensor be used as a pulse signal. -->
+    <bool name="config_dozePulsePickup">true</bool>
+
     <!-- Whether UI for multi user should be shown -->
     <bool name="config_enableMultiUserUI">true</bool>
 
     <!-- Is the device capable of hot swapping an UICC Card -->
     <bool name="config_hotswapCapable">true</bool>
 
+    <!-- Type of the quick pickup sensor. Empty if quick pickup is not supported. -->
+    <string name="config_quickPickupSensorType" translatable="false">android.sensor.glance_gesture</string>
+
     <!-- Boolean indicating whether the HWC setColorTransform function can be performed efficiently
          in hardware. -->
     <bool name="config_setColorTransformAccelerated">true</bool>

overlay/qssi/SystemUIResCommon/res/values/config.xml

@@ -5,9 +5,30 @@
 -->
 <resources>
 
+    <!-- Type of a sensor that provides a low-power estimate of the desired display
+     brightness, suitable to listen to while the device is asleep (e.g. during
+         always-on display) -->
+    <string name="doze_brightness_sensor_type" translatable="false">qti.sensor.lux_aod</string>
+
     <!-- Doze: does this device support STATE_DOZE?  -->
     <bool name="doze_display_state_supported">true</bool>
 
+    <!-- Doze: Table that translates sensor values from the doze_brightness_sensor_type sensor
+                    to brightness values; -1 means keeping the current brightness. -->
+    <integer-array name="config_doze_brightness_sensor_to_brightness">
+        <item>-1</item>
+        <item>-1</item>
+    </integer-array>
+
+    <!-- Doze: Table that translates sensor values from the doze_brightness_sensor_type sensor
+                    to an opacity value for a black scrim that is overlayed in AOD1.
+                    Valid range is from 0 (transparent) to 255 (opaque).
+                    -1 means keeping the current opacity. -->
+    <integer-array name="config_doze_brightness_sensor_to_scrim_opacity">
+        <item>-1</item>
+        <item>-1</item>
+    </integer-array>
+
     <!-- Tiles to auto add to Quick Settings upon first change of a given secure setting.
          The syntax is setting-name:spec. If the tile is a TileService, the spec should be specified
          as custom(package/class). Relative class name is supported. -->

sepolicy/qti/dolby/attributes

@@ -0,0 +1,4 @@
+# Dolby
+attribute hal_dms;
+attribute hal_dms_client;
+attribute hal_dms_server;

sepolicy/qti/dolby/file_contexts

@@ -0,0 +1,5 @@
+# Dolby
+/data/vendor/dolby(/.*)?                                                                            u:object_r:vendor_data_file:s0
+/(odm|vendor/odm)/bin/hw/vendor\.dolby_v3_6\.hardware\.dms360@2\.0-service                          u:object_r:hal_dms_default_exec:s0
+/(odm|vendor/odm)/bin/hw/vendor\.dolby_sp\.hardware\.dmssp@2\.0-service                             u:object_r:hal_dms_default_exec:s0
+/(vendor|odm)/bin/hw/vendor\.dolby_sp\.media\.c2@1\.0-service                                       u:object_r:mediacodec_exec:s0

sepolicy/qti/dolby/hal_dms.te

@@ -0,0 +1,20 @@
+type hal_dms_hwservice, hwservice_manager_type, protected_hwservice;
+
+type hal_dms_default, domain;
+hal_server_domain(hal_dms_default, hal_dms)
+
+type hal_dms_default_exec, exec_type, vendor_file_type, file_type;
+init_daemon_domain(hal_dms_default)
+
+hal_attribute_hwservice(hal_dms, hal_dms_hwservice)
+
+binder_call(hal_dms_client, hal_dms_server)
+binder_call(hal_dms_server, hal_dms_client)
+
+hal_client_domain(hal_audio_default, hal_dms)
+hal_client_domain(mediacodec, hal_dms)
+
+allow hal_dms_default vendor_data_file:dir rw_dir_perms;
+allow hal_dms_default vendor_data_file:file create_file_perms;
+
+set_prop(hal_dms_default, vendor_audio_prop)

sepolicy/qti/dolby/hwservice_contexts

@@ -0,0 +1,3 @@
+# Dolby
+vendor.dolby_v3_6.hardware.dms360::IDms                 u:object_r:hal_dms_hwservice:s0
+vendor.dolby_sp.hardware.dmssp::IDms                    u:object_r:hal_dms_hwservice:s0

sepolicy/qti/vendor/file_contexts

@@ -151,6 +151,7 @@
 /(odm|vendor/odm)/bin/hw/vendor\.oplus\.hardware\.oplusSensor@1\.0-service    u:object_r:vendor_hal_oplus_sensor_default_exec:s0
 /(odm|vendor/odm)/bin/oplus_sensor_fb                                         u:object_r:vendor_sensors_exec:s0
 /dev/ssc_interactive                                                          u:object_r:ssc_interactive_device:s0
+/vendor/bin/hw/android\.hardware\.sensors-service\.oplus-multihal             u:object_r:hal_sensors_default_exec:s0
 
 # Spunvm
 /dev/block/platform/soc/1d84000\.ufshc/by-name/spunvm    u:object_r:vendor_efs_boot_dev:s0

sepolicy/qti/vendor/genfs_contexts

@@ -19,6 +19,7 @@ genfscon sysfs /devices/platform/soc/soc:oplus,mms_gauge/oplus_mms        u:obje
 genfscon sysfs /devices/platform/soc/soc:oplus,mms_wired/oplus_mms        u:object_r:vendor_sysfs_usb_supply:s0
 genfscon sysfs /devices/platform/soc/soc:qcom,pmic_glink/soc:qcom,pmic_glink:qcom,battery_charger/soc:qcom,pmic_glink:qcom,battery_charger:oplus,pm8350_charger:oplus,mms_wired/oplus_mms    u:object_r:vendor_sysfs_usb_supply:s0
 genfscon sysfs /devices/virtual/oplus_chg                                 u:object_r:vendor_sysfs_usb_supply:s0
+genfscon sysfs /class/power_supply/battery                                u:object_r:vendor_sysfs_battery_supply:s0
 
 # Camera
 genfscon proc /boost_pool/camera_pages           u:object_r:vendor_proc_camera:s0

sepolicy/qti/vendor/hal_fingerprint_default.te

@@ -22,6 +22,21 @@ allow hal_fingerprint_default uhid_device:chr_file rw_file_perms;
 
 allow hal_fingerprint_default mnt_vendor_file:dir search;
 
+# Allow hal_fingerprint_default to write to the proc filesystem
+allow hal_fingerprint_default proc:file write;
+
+# Allow the tee context to write to debase_context on sda2
+allow tee vendor_persist_fingerprint_file:file write;
+
+# Allow hal_fingerprint_default to create directories in fingerprint_vendor_data_file
+allow hal_fingerprint_default fingerprint_vendor_data_file:dir create;
+
+# Allow hal_fingerprint_default to open /proc/tee_bind_core
+allow hal_fingerprint_default proc:file open;
+
+# Allow hal_fingerprint_default to read the file with the serialno_prop context on tmpfs
+allow hal_fingerprint_default tmpfs:file { read };
+
 rw_dir_file(hal_fingerprint_default, vendor_persist_fingerprint_file)
 rw_dir_file(hal_fingerprint_default, vendor_proc_display)
 rw_dir_file(hal_fingerprint_default, vendor_sysfs_graphics)

sepolicy/qti/vendor/hal_power_default.te

@@ -4,5 +4,6 @@ hal_client_domain(hal_power_default, vendor_hal_oplus_touch)
 allow hal_power_default hal_oplus_touch_aidl_service:service_manager find;
 binder_call(hal_power_default, hal_oplus_touch_aidl);
 
+rw_dir_file(hal_power_default, proc)
 rw_dir_file(hal_power_default, vendor_proc_display)
 rw_dir_file(hal_power_default, vendor_sysfs_sde_crtc)

sepolicy/qti/vendor/hal_sensors_default.te

@@ -1,6 +1,8 @@
 allow hal_sensors_default ssc_interactive_device:chr_file rw_file_perms;
 allow hal_sensors_default ultrasound_device:chr_file rw_file_perms;
 
+binder_call(hal_sensors_default, system_server)
+
 r_dir_file(hal_sensors_default, vendor_proc_eng_cali_file)
 r_dir_file(hal_sensors_default, vendor_proc_oplus_als_file)
 r_dir_file(hal_sensors_default, vendor_proc_oplus_version)

sepolicy/qti/vendor/init.te

@@ -0,0 +1,2 @@
+allow init vendor_sysfs_usb_supply:file w_file_perms;
+

sepolicy/qti/vendor/system_server.te

@@ -1,2 +1,3 @@
 rw_dir_file(system_server, vendor_proc_oplus_scheduler)
 rw_dir_file(system_server, vendor_proc_tri_state_key)
+rw_dir_file(system_server, vendor_sysfs_usb_supply)

vintf/device_framework_matrix.xml

@@ -1,4 +1,20 @@
 <compatibility-matrix version="4.0" type="framework">
+    <hal format="hidl" optional="true">
+        <name>vendor.dolby_v3_6.hardware.dms360</name>
+        <version>2.0</version>
+        <interface>
+            <name>IDms</name>
+            <instance>default</instance>
+        </interface>
+    </hal>
+    <hal format="hidl" optional="true">
+        <name>vendor.dolby_sp.hardware.dmssp</name>
+        <version>2.0</version>
+        <interface>
+            <name>IDms</name>
+            <instance>default</instance>
+        </interface>
+    </hal>
     <hal format="aidl" optional="true">
         <name>vendor.oplus.hardware.appradioaidl</name>
         <version>1</version>