sdm845-common: Import pocketmode app and SELinux rules for it

* Based off android_device_oneplus_msm8998-common pocketmode
  app but without fpc10xx support and using actual OnePlus
  pocketmode sensor.

Change-Id: I73eaf7e00afd08cdad71d323b6821eb8a0160cd2

common.mk

@@ -107,6 +107,10 @@ PRODUCT_PACKAGES += \
     Tag \
     com.android.nfc_extras
 
+# Pocket mode
+PRODUCT_PACKAGES += \
+    OnePlusPocketMode
+
 # Power
 PRODUCT_PACKAGES += \
     power.qcom

pocketmode/Android.mk

@@ -0,0 +1,18 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_MODULE_TAGS := optional
+
+LOCAL_SRC_FILES := $(call all-java-files-under, src)
+
+LOCAL_PACKAGE_NAME := OnePlusPocketMode
+LOCAL_CERTIFICATE := platform
+LOCAL_PRIVILEGED_MODULE := true
+
+LOCAL_STATIC_JAVA_LIBRARIES := \
+    org.lineageos.platform.internal
+
+LOCAL_PROGUARD_FLAG_FILES := proguard.flags
+
+include $(BUILD_PACKAGE)

pocketmode/AndroidManifest.xml

@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="org.lineageos.pocketmode"
+    android:versionCode="1"
+    android:versionName="1.0"
+    android:sharedUserId="android.uid.system">
+
+    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
+
+    <uses-sdk
+        android:minSdkVersion="21"
+        android:targetSdkVersion="21"/>
+
+    <application
+        android:label="OnePlusPocketMode"
+        android:persistent="true">
+
+        <receiver android:name="org.lineageos.pocketmode.BootCompletedReceiver">
+            <intent-filter>
+                <action android:name="android.intent.action.BOOT_COMPLETED" />
+                <category android:name="android.intent.category.DEFAULT" />
+            </intent-filter>
+        </receiver>
+
+        <service android:name="org.lineageos.pocketmode.PocketModeService"
+                 android:permission="OnePlusPocketModeService">
+        </service>
+
+    </application>
+</manifest>

pocketmode/proguard.flags

@@ -0,0 +1,3 @@
+-keep class org.lineageos.pocketmode.* {
+  *;
+}

pocketmode/src/org/lineageos/pocketmode/BootCompletedReceiver.java

@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2016 The CyanogenMod Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.lineageos.pocketmode;
+
+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 = "OnePlusPocketMode";
+
+    @Override
+    public void onReceive(final Context context, Intent intent) {
+        Log.d(TAG, "Starting");
+        context.startService(new Intent(context, PocketModeService.class));
+    }
+}

pocketmode/src/org/lineageos/pocketmode/PocketModeService.java

@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2016 The CyanogenMod Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.lineageos.pocketmode;
+
+import android.app.Service;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.os.IBinder;
+import android.util.Log;
+
+public class PocketModeService extends Service {
+    private static final String TAG = "PocketModeService";
+    private static final boolean DEBUG = false;
+
+    private PocketSensor mPocketSensor;
+
+    @Override
+    public void onCreate() {
+        if (DEBUG) Log.d(TAG, "Creating service");
+        mPocketSensor = new PocketSensor(this);
+
+        IntentFilter screenStateFilter = new IntentFilter();
+        screenStateFilter.addAction(Intent.ACTION_SCREEN_ON);
+        screenStateFilter.addAction(Intent.ACTION_SCREEN_OFF);
+        registerReceiver(mScreenStateReceiver, screenStateFilter);
+    }
+
+    @Override
+    public int onStartCommand(Intent intent, int flags, int startId) {
+        if (DEBUG) Log.d(TAG, "Starting service");
+        return START_STICKY;
+    }
+
+    @Override
+    public void onDestroy() {
+        if (DEBUG) Log.d(TAG, "Destroying service");
+        this.unregisterReceiver(mScreenStateReceiver);
+        mPocketSensor.disable();
+        super.onDestroy();
+    }
+
+    @Override
+    public IBinder onBind(Intent intent) {
+        return null;
+    }
+
+    private BroadcastReceiver mScreenStateReceiver = new BroadcastReceiver() {
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            if (intent.getAction().equals(Intent.ACTION_SCREEN_ON)) {
+                if (DEBUG) Log.d(TAG, "Display on");
+                mPocketSensor.disable();
+            } else if (intent.getAction().equals(Intent.ACTION_SCREEN_OFF)) {
+                if (DEBUG) Log.d(TAG, "Display off");
+                mPocketSensor.enable();
+            }
+        }
+    };
+}

pocketmode/src/org/lineageos/pocketmode/PocketSensor.java

@@ -0,0 +1,89 @@
+/*
+ * Copyright (c) 2016 The CyanogenMod Project
+ * Copyright (c) 2018 The LineageOS Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.lineageos.pocketmode;
+
+import android.content.Context;
+import android.hardware.Sensor;
+import android.hardware.SensorEvent;
+import android.hardware.SensorEventListener;
+import android.hardware.SensorManager;
+import android.text.TextUtils;
+import android.util.Log;
+
+import org.lineageos.internal.util.FileUtils;
+
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+
+public class PocketSensor implements SensorEventListener {
+    private static final boolean DEBUG = false;
+    private static final String TAG = "PocketSensor";
+
+    private static final String GOODIX_FILE =
+            "/sys/devices/platform/soc/soc:goodix_fp/proximity_state";
+
+    private ExecutorService mExecutorService;
+    private SensorManager mSensorManager;
+    private Sensor mSensor;
+    private Context mContext;
+
+    public PocketSensor(Context context) {
+        mContext = context;
+        mSensorManager = mContext.getSystemService(SensorManager.class);
+        mExecutorService = Executors.newSingleThreadExecutor();
+
+        for (Sensor sensor : mSensorManager.getSensorList(Sensor.TYPE_ALL)) {
+            if (TextUtils.equals(sensor.getStringType(), "oneplus.sensor.pocket")) {
+                mSensor = sensor;
+                break;
+            }
+        }
+    }
+
+    @Override
+    public void onSensorChanged(SensorEvent event) {
+        setFPProximityState(event.values[0] == 1.0);
+    }
+
+    @Override
+    public void onAccuracyChanged(Sensor sensor, int accuracy) {
+        /* Empty */
+    }
+
+    private void setFPProximityState(boolean isNear) {
+        if (!FileUtils.writeLine(GOODIX_FILE, isNear ? "1" : "0")) {
+            Log.e(TAG, "Proximity state file " + GOODIX_FILE + " is not writable!");
+        }
+    }
+
+    void enable() {
+        if (DEBUG) Log.d(TAG, "Enabling");
+        mExecutorService.submit(() -> {
+            mSensorManager.registerListener(this, mSensor, SensorManager.SENSOR_DELAY_NORMAL);
+        });
+    }
+
+    void disable() {
+        if (DEBUG) Log.d(TAG, "Disabling");
+        mExecutorService.submit(() -> {
+            mSensorManager.unregisterListener(this, mSensor);
+            // Ensure FP is left enabled
+            setFPProximityState(/* isNear */ false);
+        });
+    }
+}

rootdir/etc/init.qcom.rc

@@ -6,6 +6,9 @@ on init
     mount none /system/lib/modules/wlan.ko /vendor/lib/modules/qca_cld3_wlan.ko bind
 
 on boot
+    # Fingerprint
+    chown system system /sys/devices/platform/soc/soc:goodix_fp/proximity_state
+
     # Touchpanel
     chmod 0660 /proc/touchpanel/double_swipe_enable
     chmod 0660 /proc/touchpanel/down_arrow_enable

sepolicy/private/file.te

@@ -5,3 +5,4 @@ type op1_file, file_type;
 type op2_file, file_type;
 type persist_file, file_type;
 type proc_touchpanel, fs_type;
+type sysfs_fpc_proximity, sysfs_type, fs_type;

sepolicy/private/file_contexts

@@ -6,6 +6,9 @@
 /op2(/.*)?               u:object_r:op2_file:s0
 /persist(/.*)?           u:object_r:persist_file:s0
 
+# Files in sysfs
+/sys/devices/platform/soc/soc:goodix_fp/proximity_state    u:object_r:sysfs_fpc_proximity:s0
+
 # Lights
 /system/bin/hw/android\.hardware\.light@2\.0-service\.oneplus_sdm845    u:object_r:hal_light_sdm845_exec:s0
 

sepolicy/private/system_app.te

@@ -0,0 +1 @@
+allow system_app sysfs_fpc_proximity:file w_file_perms;