dolby: Switch to XiaomiDolby

Based on hardware/xiaomi History - - Enable TARGET_USES_DOLBY - Add intelligent equalizer setting - Remove deprecated PlainTooltipBox - Introduce graphical equalizer - Add launcher icon - fixup! Restore all settings upon bootup - Override AudioFx - Use all shared resources from devicesettings - Fix build with kotlinc 1.9.0 - Restore current profile _after_ resetting profiles - Do not set volume leveler amount - Restore all settings upon bootup - Rewrite in Kotlin - Revert "Re-enable speaker virtualization after bootup" - Convert to SwitchPreferenceCompat - Migrate to CompoundButton.OnCheckedChangeListener - Enable use_resource_processor for all sysui deps - Introduce Dolby Atmos Co-authored-by: Henrique Silva <jhenrique09.mcz@hotmail.com> Co-authored-by: Pranav Vashi <neobuddy89@gmail.com> Co-authored-by: Fabian Leutenegger <fabian.leutenegger@bluewin.ch> Co-authored-by: basamaryan <basam.aryan@gmail.com>
2024-10-06 12:01:21 +05:30 · 2024-10-06 12:01:21 +05:30 · 1f2bc3d255
commit 1f2bc3d255
parent 7870b8a0c7
45 changed files with 2731 additions and 3 deletions
--- a/XiaomiDolby/Android.bp
+++ b/XiaomiDolby/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: "XiaomiDolby",
+
+    srcs: ["src/**/*.kt"],
+    resource_dirs: ["res"],
+    certificate: "platform",
+    platform_apis: true,
+    system_ext_specific: true,
+    privileged: true,
+
+    overrides: ["MusicFX", "AudioFX"],
+    static_libs: [
+        "SettingsLib",
+        "SpaLib",
+        "androidx.activity_activity-compose",
+        "androidx.compose.material3_material3",
+        "androidx.compose.runtime_runtime",
+        "androidx.preference_preference",
+        "org.lineageos.settings.resources",
+    ],
+}
--- a/XiaomiDolby/AndroidManifest.xml
+++ b/XiaomiDolby/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.xiaomi"
+    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.xiaomi.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.xiaomi.summary">
+        </provider>
+
+    </application>
+</manifest>
+
--- a/XiaomiDolby/res/drawable/ic_dolby.xml
+++ b/XiaomiDolby/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">
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+</vector>
--- a/XiaomiDolby/res/drawable/ic_dolby_qs.xml
+++ b/XiaomiDolby/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">
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+    </group>
+</vector>
--- a/XiaomiDolby/res/drawable/ic_ieq_balanced.xml
+++ b/XiaomiDolby/res/drawable/ic_ieq_balanced.xml
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--- a/XiaomiDolby/res/drawable/ic_ieq_detailed.xml
+++ b/XiaomiDolby/res/drawable/ic_ieq_detailed.xml
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--- a/XiaomiDolby/res/drawable/ic_ieq_off.xml
+++ b/XiaomiDolby/res/drawable/ic_ieq_off.xml
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+    xmlns:android="http://schemas.android.com/apk/res/android"
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--- a/XiaomiDolby/res/drawable/ic_ieq_warm.xml
+++ b/XiaomiDolby/res/drawable/ic_ieq_warm.xml
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--- a/XiaomiDolby/res/drawable/ic_launcher_background.xml
+++ b/XiaomiDolby/res/drawable/ic_launcher_background.xml
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--- a/XiaomiDolby/res/drawable/ic_launcher_background__0.xml
+++ b/XiaomiDolby/res/drawable/ic_launcher_background__0.xml
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--- a/XiaomiDolby/res/drawable/ic_launcher_background__1.xml
+++ b/XiaomiDolby/res/drawable/ic_launcher_background__1.xml
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+    <item android:color="#ff9fa8da" android:offset="1.0" />
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--- a/XiaomiDolby/res/drawable/ic_launcher_foreground.xml
+++ b/XiaomiDolby/res/drawable/ic_launcher_foreground.xml
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--- a/XiaomiDolby/res/drawable/ic_launcher_mono.xml
+++ b/XiaomiDolby/res/drawable/ic_launcher_mono.xml
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--- a/XiaomiDolby/res/drawable/reset_settings_24px.xml
+++ b/XiaomiDolby/res/drawable/reset_settings_24px.xml
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+    <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>
--- a/XiaomiDolby/res/drawable/save_as_24px.xml
+++ b/XiaomiDolby/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>
--- a/XiaomiDolby/res/layout/ieq_icon_layout.xml
+++ b/XiaomiDolby/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>
--- a/XiaomiDolby/res/mipmap-anydpi/ic_launcher.xml
+++ b/XiaomiDolby/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>
--- a/XiaomiDolby/res/values/arrays.xml
+++ b/XiaomiDolby/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>
--- a/XiaomiDolby/res/values/strings.xml
+++ b/XiaomiDolby/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>
--- a/XiaomiDolby/res/xml/dolby_settings.xml
+++ b/XiaomiDolby/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.xiaomi"
+                android:targetClass="co.aospa.dolby.xiaomi.geq.EqualizerActivity" />
+        </Preference>
+
+        <co.aospa.dolby.xiaomi.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>
--- a/XiaomiDolby/src/co/aospa/dolby/xiaomi/BootCompletedReceiver.kt
+++ b/XiaomiDolby/src/co/aospa/dolby/xiaomi/BootCompletedReceiver.kt
@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2023-24 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.xiaomi
+
+import android.content.BroadcastReceiver
+import android.content.Context
+import android.content.Intent
+import android.util.Log
+
+private const val TAG = "XiaomiDolby-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()
+    }
+}
--- a/XiaomiDolby/src/co/aospa/dolby/xiaomi/DolbyActivity.kt
+++ b/XiaomiDolby/src/co/aospa/dolby/xiaomi/DolbyActivity.kt
@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2023-24 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.xiaomi
+
+import android.os.Bundle
+import co.aospa.dolby.xiaomi.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()
+    }
+}
--- a/XiaomiDolby/src/co/aospa/dolby/xiaomi/DolbyAudioEffect.kt
+++ b/XiaomiDolby/src/co/aospa/dolby/xiaomi/DolbyAudioEffect.kt
@ -0,0 +1,136 @@
+/*
+ * Copyright (C) 2023-24 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.xiaomi
+
+import android.media.audiofx.AudioEffect
+import co.aospa.dolby.xiaomi.DolbyConstants.Companion.dlog
+import co.aospa.dolby.xiaomi.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
+        }
+    }
+}
--- a/XiaomiDolby/src/co/aospa/dolby/xiaomi/DolbyConstants.kt
+++ b/XiaomiDolby/src/co/aospa/dolby/xiaomi/DolbyConstants.kt
@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2023-24 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.xiaomi
+
+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 = "XiaomiDolby"
+        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)
+            }
+        }
+    }
+}
--- a/XiaomiDolby/src/co/aospa/dolby/xiaomi/DolbyController.kt
+++ b/XiaomiDolby/src/co/aospa/dolby/xiaomi/DolbyController.kt
@ -0,0 +1,316 @@
+/*
+ * Copyright (C) 2023-24 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.xiaomi
+
+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.xiaomi.DolbyConstants.Companion.dlog
+import co.aospa.dolby.xiaomi.DolbyConstants.DsParam
+import co.aospa.dolby.xiaomi.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 }
+            }
+    }
+}
--- a/XiaomiDolby/src/co/aospa/dolby/xiaomi/DolbyTileService.kt
+++ b/XiaomiDolby/src/co/aospa/dolby/xiaomi/DolbyTileService.kt
@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2023-24 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.xiaomi
+
+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()
+    }
+}
--- a/XiaomiDolby/src/co/aospa/dolby/xiaomi/SummaryProvider.kt
+++ b/XiaomiDolby/src/co/aospa/dolby/xiaomi/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.xiaomi
+
+import android.content.ContentProvider
+import android.content.ContentValues
+import android.database.Cursor
+import android.net.Uri
+import android.os.Bundle
+import co.aospa.dolby.xiaomi.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)
+    }
+
+}
--- a/XiaomiDolby/src/co/aospa/dolby/xiaomi/geq/EqualizerActivity.kt
+++ b/XiaomiDolby/src/co/aospa/dolby/xiaomi/geq/EqualizerActivity.kt
@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2024 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.xiaomi.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.xiaomi.R
+import co.aospa.dolby.xiaomi.geq.ui.EqualizerScreen
+import co.aospa.dolby.xiaomi.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)
+                )
+            }
+        }
+    }
+}
--- a/XiaomiDolby/src/co/aospa/dolby/xiaomi/geq/data/BandGain.kt
+++ b/XiaomiDolby/src/co/aospa/dolby/xiaomi/geq/data/BandGain.kt
@ -0,0 +1,12 @@
+/*
+ * Copyright (C) 2024 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.xiaomi.geq.data
+
+data class BandGain(
+    val band: Int,
+    var gain: Int = 0
+)
--- a/XiaomiDolby/src/co/aospa/dolby/xiaomi/geq/data/EqualizerRepository.kt
+++ b/XiaomiDolby/src/co/aospa/dolby/xiaomi/geq/data/EqualizerRepository.kt
@ -0,0 +1,183 @@
+/*
+ * Copyright (C) 2024 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.xiaomi.geq.data
+
+import android.content.Context
+import android.content.SharedPreferences
+import android.util.Log
+import co.aospa.dolby.xiaomi.DolbyConstants.Companion.PREF_PRESET
+import co.aospa.dolby.xiaomi.DolbyConstants.Companion.dlog
+import co.aospa.dolby.xiaomi.DolbyController
+import co.aospa.dolby.xiaomi.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 }
+    }
+}
--- a/XiaomiDolby/src/co/aospa/dolby/xiaomi/geq/data/Preset.kt
+++ b/XiaomiDolby/src/co/aospa/dolby/xiaomi/geq/data/Preset.kt
@ -0,0 +1,14 @@
+/*
+ * Copyright (C) 2024 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.xiaomi.geq.data
+
+data class Preset(
+    var name: String,
+    val bandGains: List<BandGain>,
+    var isUserDefined: Boolean = false,
+    var isMutated: Boolean = false
+)
--- a/XiaomiDolby/src/co/aospa/dolby/xiaomi/geq/ui/BandGainSlider.kt
+++ b/XiaomiDolby/src/co/aospa/dolby/xiaomi/geq/ui/BandGainSlider.kt
@ -0,0 +1,101 @@
+/*
+ * Copyright (C) 2024 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.xiaomi.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.xiaomi.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
+    )
+}
--- a/XiaomiDolby/src/co/aospa/dolby/xiaomi/geq/ui/BandGainSliderLabels.kt
+++ b/XiaomiDolby/src/co/aospa/dolby/xiaomi/geq/ui/BandGainSliderLabels.kt
@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2024 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.xiaomi.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.xiaomi.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
+    )
+}
--- a/XiaomiDolby/src/co/aospa/dolby/xiaomi/geq/ui/ConfirmationDialog.kt
+++ b/XiaomiDolby/src/co/aospa/dolby/xiaomi/geq/ui/ConfirmationDialog.kt
@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2024 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.xiaomi.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)
+        }
+    )
+}
--- a/XiaomiDolby/src/co/aospa/dolby/xiaomi/geq/ui/EqualizerBands.kt
+++ b/XiaomiDolby/src/co/aospa/dolby/xiaomi/geq/ui/EqualizerBands.kt
@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2024 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.xiaomi.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)
+                }
+            )
+        }
+    }
+}
--- a/XiaomiDolby/src/co/aospa/dolby/xiaomi/geq/ui/EqualizerScreen.kt
+++ b/XiaomiDolby/src/co/aospa/dolby/xiaomi/geq/ui/EqualizerScreen.kt
@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2024 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.xiaomi.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.Surface
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.dp
+import com.android.settingslib.spa.framework.theme.SettingsDimension
+import com.android.settingslib.spa.framework.theme.SettingsTheme
+
+@Composable
+fun EqualizerScreen(
+    viewModel: EqualizerViewModel,
+    modifier: Modifier = Modifier
+) {
+    Surface(
+        modifier = Modifier
+            .fillMaxSize()
+            .padding(SettingsDimension.itemPadding)
+            .then(modifier),
+        color = SettingsTheme.colorScheme.background
+    ) {
+        Column(
+            verticalArrangement = Arrangement.Top,
+            modifier = Modifier.fillMaxHeight()
+        ) {
+            PresetSelector(viewModel = viewModel)
+            EqualizerBands(viewModel = viewModel)
+        }
+    }
+}
--- a/XiaomiDolby/src/co/aospa/dolby/xiaomi/geq/ui/EqualizerViewModel.kt
+++ b/XiaomiDolby/src/co/aospa/dolby/xiaomi/geq/ui/EqualizerViewModel.kt
@ -0,0 +1,175 @@
+/*
+ * Copyright (C) 2024 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.xiaomi.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.xiaomi.geq.data.EqualizerRepository
+import co.aospa.dolby.xiaomi.geq.data.Preset
+import co.aospa.dolby.xiaomi.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]!!
+                    )
+                )
+            }
+        }
+    }
+}
--- a/XiaomiDolby/src/co/aospa/dolby/xiaomi/geq/ui/PresetNameDialog.kt
+++ b/XiaomiDolby/src/co/aospa/dolby/xiaomi/geq/ui/PresetNameDialog.kt
@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2024 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.xiaomi.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.xiaomi.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)
+                    )
+                }
+            }
+        }
+    )
+}
--- a/XiaomiDolby/src/co/aospa/dolby/xiaomi/geq/ui/PresetNameValidationError.kt
+++ b/XiaomiDolby/src/co/aospa/dolby/xiaomi/geq/ui/PresetNameValidationError.kt
@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2024 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.xiaomi.geq.ui
+
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.res.stringResource
+import co.aospa.dolby.xiaomi.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
+            }
+        )
+}
--- a/XiaomiDolby/src/co/aospa/dolby/xiaomi/geq/ui/PresetSelector.kt
+++ b/XiaomiDolby/src/co/aospa/dolby/xiaomi/geq/ui/PresetSelector.kt
@ -0,0 +1,176 @@
+/*
+ * Copyright (C) 2024 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.xiaomi.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.xiaomi.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 }
+        )
+    }
+}
--- a/XiaomiDolby/src/co/aospa/dolby/xiaomi/geq/ui/TooltipIconButton.kt
+++ b/XiaomiDolby/src/co/aospa/dolby/xiaomi/geq/ui/TooltipIconButton.kt
@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2024 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.xiaomi.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.rememberPlainTooltipPositionProvider(),
+        tooltip = {
+            Text(text)
+        },
+        state = rememberTooltipState()
+    ) {
+        IconButton(
+            onClick = onClick
+        ) {
+            Icon(
+                imageVector = icon,
+                contentDescription = text,
+                modifier = Modifier.size(24.dp)
+            )
+        }
+    }
+}
--- a/XiaomiDolby/src/co/aospa/dolby/xiaomi/preference/DolbyIeqPreference.kt
+++ b/XiaomiDolby/src/co/aospa/dolby/xiaomi/preference/DolbyIeqPreference.kt
@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2024 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.xiaomi.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.xiaomi.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!
+        }
+    }
+}
--- a/XiaomiDolby/src/co/aospa/dolby/xiaomi/preference/DolbyPreferenceStore.kt
+++ b/XiaomiDolby/src/co/aospa/dolby/xiaomi/preference/DolbyPreferenceStore.kt
@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2024 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.xiaomi.preference
+
+import android.content.Context
+import android.content.SharedPreferences
+import androidx.preference.PreferenceDataStore
+import androidx.preference.PreferenceManager
+import co.aospa.dolby.xiaomi.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)
+}
--- a/XiaomiDolby/src/co/aospa/dolby/xiaomi/preference/DolbySettingsFragment.kt
+++ b/XiaomiDolby/src/co/aospa/dolby/xiaomi/preference/DolbySettingsFragment.kt
@ -0,0 +1,299 @@
+/*
+ * Copyright (C) 2023-24 Paranoid Android
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package co.aospa.dolby.xiaomi.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.xiaomi.DolbyConstants
+import co.aospa.dolby.xiaomi.DolbyConstants.Companion.PREF_BASS
+import co.aospa.dolby.xiaomi.DolbyConstants.Companion.PREF_DIALOGUE
+import co.aospa.dolby.xiaomi.DolbyConstants.Companion.PREF_ENABLE
+import co.aospa.dolby.xiaomi.DolbyConstants.Companion.PREF_HP_VIRTUALIZER
+import co.aospa.dolby.xiaomi.DolbyConstants.Companion.PREF_IEQ
+import co.aospa.dolby.xiaomi.DolbyConstants.Companion.PREF_PRESET
+import co.aospa.dolby.xiaomi.DolbyConstants.Companion.PREF_PROFILE
+import co.aospa.dolby.xiaomi.DolbyConstants.Companion.PREF_RESET
+import co.aospa.dolby.xiaomi.DolbyConstants.Companion.PREF_SPK_VIRTUALIZER
+import co.aospa.dolby.xiaomi.DolbyConstants.Companion.PREF_STEREO
+import co.aospa.dolby.xiaomi.DolbyConstants.Companion.PREF_VOLUME
+import co.aospa.dolby.xiaomi.DolbyConstants.Companion.dlog
+import co.aospa.dolby.xiaomi.DolbyController
+import co.aospa.dolby.xiaomi.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()
+    }
+}
--- a/dolby.mk
+++ b/dolby.mk
@ -49,6 +49,7 @@ PRODUCT_PACKAGES += \
    libstagefright_softomx_plugin.vendor \

 # Dolby Props
+TARGET_USES_DOLBY := true
 PRODUCT_VENDOR_PROPERTIES += \
 ro.audio.spatializer_enabled=true \
 ro.vendor.dolby.dax.version=DAX3_3.6.0.12_r1 \
@ -60,10 +61,10 @@ ro.audio.monitorRotation=true \
 PRODUCT_PACKAGES += \
    RemovePackagesDolby

-# DaxUI and daxService
+# XiaomiDolby and daxService
 PRODUCT_PACKAGES += \
-    DaxUI \
-    daxService
+    XiaomiDolby \
+    daxService \
   
 # Dolby Permissions
 PRODUCT_COPY_FILES += \