pipa: Add Xiaomi Peripheral Manager

* right now keyboardutils just does disable the keyboard input device after boot

Change-Id: I7020b043e9e643d125e9641b18f3f0e71d8343b1

device.mk

@@ -34,6 +34,10 @@ DEVICE_PACKAGE_OVERLAYS += \
     $(LOCAL_PATH)/overlay \
     $(LOCAL_PATH)/overlay-lineage
 
+# Peripheral Manager
+PRODUCT_PACKAGES += \
+    XiaomiPeripheralManager
+
 # Permissions
 PRODUCT_COPY_FILES += \
     frameworks/native/data/etc/handheld_core_hardware.xml:$(TARGET_COPY_OUT_VENDOR)/etc/permissions/handheld_core_hardware.xml

peripheralmanager/Android.bp

@@ -0,0 +1,17 @@
+//
+// Copyright (C) 2023 The LineageOS Project
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+android_app {
+    name: "XiaomiPeripheralManager",
+    certificate: "platform",
+    srcs: ["src/**/*.java"],
+    platform_apis: true,
+    privileged: true,
+    system_ext_specific: true,
+    static_libs: [
+        "androidx.core_core",
+    ],
+}

peripheralmanager/AndroidManifest.xml

@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright (C) 2023 The LineageOS Project
+
+     SPDX-License-Identifier: Apache-2.0
+-->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="org.lineageos.xiaomiperipheralmanager"
+    android:versionCode="1"
+    android:versionName="1.0"
+    android:sharedUserId="android.uid.system">
+
+    <uses-sdk
+        android:minSdkVersion="31"
+        android:targetSdkVersion="31"/>
+
+    <application
+        android:label="@string/app_name"
+        android:persistent="true"
+        android:defaultToDeviceProtectedStorage="true"
+        android:directBootAware="true">
+
+        <receiver
+            android:name=".BootCompletedReceiver"
+            android:exported="true"
+            android:permission="android.permission.RECEIVE_BOOT_COMPLETED">
+            <intent-filter>
+                <action android:name="android.intent.action.LOCKED_BOOT_COMPLETED" />
+                <category android:name="android.intent.category.DEFAULT" />
+            </intent-filter>
+        </receiver>
+
+    </application>
+</manifest>

peripheralmanager/res/values/strings.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright (C) 2023 The LineageOS Project
+
+     SPDX-License-Identifier: Apache-2.0
+-->
+<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+    <!-- App Name -->
+    <string name="app_name">Xiaomi Peripheral Manager</string>
+</resources>

peripheralmanager/src/org/lineageos/xiaomiperipheralmanager/BootCompletedReceiver.java

@@ -0,0 +1,24 @@
+/*
+ * Copyright (C) 2023 The LineageOS Project
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.lineageos.xiaomiperipheralmanager;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.util.Log;
+
+public class BootCompletedReceiver extends BroadcastReceiver {
+
+    private static final String TAG = "XiaomiPeripheralManager";
+    private static final boolean DEBUG = false;
+
+    @Override
+    public void onReceive(final Context context, Intent intent) {
+        if (DEBUG) Log.d(TAG, "Received boot completed intent");
+        KeyboardUtils.setup(context);
+    }
+}

peripheralmanager/src/org/lineageos/xiaomiperipheralmanager/KeyboardUtils.java

@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2023 The LineageOS Project
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.lineageos.xiaomiperipheralmanager;
+
+import android.content.Context;
+import android.hardware.input.InputManager;
+import android.util.Log;
+import android.view.InputDevice;
+
+public class KeyboardUtils {
+
+    private static final String TAG = "XiaomiPeripheralManagerKeyboardUtils";
+    private static final boolean DEBUG = false;
+
+    private static final int kbVendorId = 5593;
+    private static final int kbProductId = 163;
+
+    private static InputManager mInputManager;
+
+    public static void setup(Context context) {
+        if (mInputManager == null) {
+            mInputManager = (InputManager) context.getSystemService(Context.INPUT_SERVICE);
+        }
+        setKeyboardEnabled(false);
+    }
+
+    public static void setKeyboardEnabled(boolean enabled) {
+        if (DEBUG) Log.d(TAG, "setKeyboardEnabled: " + enabled);
+        for (int id : mInputManager.getInputDeviceIds()) {
+            if (isDeviceXiaomiKeyboard(id)) {
+                if (DEBUG) Log.d(TAG, "setKeyboardEnabled: Found Xiaomi Keyboard with id: " + id);
+                if (enabled) {
+                    if (DEBUG) Log.d(TAG, "setKeyboardEnabled: Enabling Xiaomi Keyboard");
+                    mInputManager.enableInputDevice(id);
+                } else {
+                    if (DEBUG) Log.d(TAG, "setKeyboardEnabled: Disabling Xiaomi Keyboard");
+                    mInputManager.disableInputDevice(id);
+                }
+            }
+        }
+    }
+
+    private static boolean isDeviceXiaomiKeyboard(int id) {
+        InputDevice inputDevice = mInputManager.getInputDevice(id);
+        return inputDevice.getVendorId() == kbVendorId && inputDevice.getProductId() == kbProductId;
+    }
+}