guacamole: add support for under-screen fingerprint scanner

* Needs corresponding frameworks commit.
* Imported all vendor interfaces to the device tree. This is dirty and
should be fixed from the frameworks side first, e.g. maybe load a .jar
library for FOD, but the code of that .jar library is only present in
device tree.

Android.bp

@@ -1,3 +1,3 @@
 subdirs = [
-	"lights",
+	"lights", "interfaces",
 ]

device.mk

@@ -15,6 +15,7 @@ $(call inherit-product-if-exists, vendor/oneplus/guacamole/guacamole-vendor.mk)
 # Overlays
 DEVICE_PACKAGE_OVERLAYS += \
 	$(LOCAL_PATH)/overlay \
+	$(LOCAL_PATH)/overlay-lineage \
 
 # AID/fs configs
 PRODUCT_PACKAGES += \

interfaces/Android.bp

@@ -0,0 +1,6 @@
+hidl_package_root {
+    name: "vendor",
+    path: "device/oneplus/guacamole/interfaces/vendor",
+}
+
+subdirs = [ "vendor" ]

interfaces/vendor/oneplus/camera/CameraHIDL/1.0/Android.bp

@@ -0,0 +1,14 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "vendor.oneplus.camera.CameraHIDL@1.0",
+    root: "vendor",
+    srcs: [
+        "IOnePlusCameraProvider.hal",
+    ],
+    interfaces: [
+        "android.hidl.base@1.0",
+    ],
+    gen_java: true,
+}
+

interfaces/vendor/oneplus/camera/CameraHIDL/1.0/IOnePlusCameraProvider.hal

@@ -0,0 +1,14 @@
+package vendor.oneplus.camera.CameraHIDL@1.0;
+
+interface IOnePlusCameraProvider {
+	setCameraId(int32_t name) generates (bool status);
+	setPackageName(string name) generates (bool status);
+	getPackageName() generates (string cameraDeviceNames);
+	file_access(string path) generates (bool status);
+	file_delete(string path) generates (bool status);
+	file_open(string path) generates (int32_t fd);
+	file_write(int32_t fd, vec<int8_t> buffer, int32_t size) generates (bool status2);
+	file_read(int32_t fd, int32_t size) generates (bool status, vec<int8_t> buffer, int32_t size);
+	file_close(int32_t fd) generates (bool status);
+};	
+	

interfaces/vendor/oneplus/fingerprint/extension/1.0/Android.bp

@@ -0,0 +1,19 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "vendor.oneplus.fingerprint.extension@1.0",
+    root: "vendor",
+    srcs: [
+        "types.hal",
+        "IVendorFingerprintExtensions.hal",
+        "IVendorFingerprintExtensionsCallback.hal",
+    ],
+    interfaces: [
+        "android.hidl.base@1.0",
+    ],
+    types: [
+        "FpTest",
+    ],
+    gen_java: true,
+}
+

interfaces/vendor/oneplus/fingerprint/extension/1.0/IVendorFingerprintExtensions.hal

@@ -0,0 +1,15 @@
+package vendor.oneplus.fingerprint.extension@1.0;
+
+import vendor.oneplus.fingerprint.extension@1.0::types;
+import vendor.oneplus.fingerprint.extension@1.0::IVendorFingerprintExtensionsCallback;
+
+interface IVendorFingerprintExtensions {
+	updateStatus(int32_t status) generates (int32_t debugErrno);
+	getStatus() generates (int32_t debugErrno2);
+	getEngTest() generates (vec<FpTest> FpTests);
+	setEngCallback(IVendorFingerprintExtensionsCallback Callback) generates (int32_t debugErrno);
+	startEngTest(int32_t cmdId) generates (int32_t debugErrno);
+	stopEngTest(int32_t cmdId) generates (int32_t debugErrno);
+	stopAllEngTest() generates (int32_t debugErrno2);
+	setParam(int32_t level) generates (int32_t debugErrno);
+};

interfaces/vendor/oneplus/fingerprint/extension/1.0/IVendorFingerprintExtensionsCallback.hal

@@ -0,0 +1,5 @@
+package vendor.oneplus.fingerprint.extension@1.0;
+
+interface IVendorFingerprintExtensionsCallback {
+	oneway onResult(int32_t cmdId, int32_t result, string info);
+};

interfaces/vendor/oneplus/fingerprint/extension/1.0/README.md

@@ -0,0 +1,30 @@
+Here are few things I've found while reverse-engineering fingerprint code.
+
+Everything seems to boil down to calls to
+vendor.oneplus.fingerprint.extension@1.0.updateStatus()
+
+The value set is output in stock ROM with FingerprintService logcat TAG:
+12-27 12:24:07.631   907  1509 D FingerprintService: updateStatus , 8
+
+In real life firmware, the following values have been found:
+- 3
+- 4
+- 8
+- 9
+
+Here are few places, and values found in the code:
+
+- services-decompile/sources/com/android/server/fingerprint/FingerprintService.java:
+startClient can set status to 3 if client == keyguard, else to 4
+It also centralizes statuses (cf next entry).
+This indicates some extra values: 8 or 9, though it doesn't set those.
+8 and 9 seem to be specific to enrolling
+
+- OPSystemUI/sources/com/android/keyguard/KeyguardUpdateMonitor.java
+the mPocketListener can set status to 1 or 2 (probably to suspend the sensor when the phone is in pocket), or event 0
+
+When reading stock ROM logcat, it seems this is the behaviour:
+Authentication by SystemUI (== keyguard) sets value to 3
+End of auth set values to 4
+Settings seem to set status to 8 BEFORE starting enrollment, then when enrolling is called, FingerprintService calls updateStatus to 4
+When enrollment is paused, status is set to 9, then back to 8 to resume

interfaces/vendor/oneplus/fingerprint/extension/1.0/types.hal

@@ -0,0 +1,6 @@
+package vendor.oneplus.fingerprint.extension@1.0;
+
+struct FpTest {
+	string name;
+	int32_t cmdId;
+};

interfaces/vendor/oneplus/hardware/display/1.0/Android.bp

@@ -0,0 +1,14 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "vendor.oneplus.hardware.display@1.0",
+    root: "vendor",
+    srcs: [
+        "IOneplusDisplay.hal",
+    ],
+    interfaces: [
+        "android.hidl.base@1.0",
+    ],
+    gen_java: true,
+}
+

interfaces/vendor/oneplus/hardware/display/1.0/IOneplusDisplay.hal

@@ -0,0 +1,5 @@
+package vendor.oneplus.hardware.display@1.0;
+
+interface IOneplusDisplay {
+	setMode(int32_t mode, int32_t enable);
+};

overlay-lineage/frameworks/base/core/res/res/values/config.xml

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 2012, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+-->
+
+<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+    <!-- FOD fingerprint scanner -->
+    <bool name="config_needCustomFODView">true</bool>
+    <bool name="config_usesOnePlusFOD">true</bool>
+</resources>

overlay/packages/apps/Settings/res/values/config.xml

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2007 The Android Open Source Project
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+          http://www.apache.org/licenses/LICENSE-2.0
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+
+    <!-- Defines the location of the fingerprint sensor on the device
+       0 = back
+       1 = front
+       2 = left side
+       3 = right side
+    -->
+    <integer name="config_fingerprintSensorLocation">1</integer>
+
+</resources>

overlay/packages/apps/Settings/res/values/dimens.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2009 The Android Open Source Project
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+          http://www.apache.org/licenses/LICENSE-2.0
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<resources>
+    <dimen name="fingerprint_dot_radius">8dp</dimen>
+    <item name="fingerprint_sensor_location_fraction_y" type="fraction">85%</item>
+</resources>

proprietary-files.txt

@@ -151,6 +151,9 @@ lib64/libsdm-disp-apis.so
 lib64/vendor.display.color@1.0.so
 
 # Fingerprint extensions
--framework/vendor.oneplus.fingerprint.extension-V1.0-java.jar
 lib64/vendor.oneplus.fingerprint.extension@1.0.so
 lib/vendor.oneplus.fingerprint.extension@1.0.so
+
+# Display extensions (mostly for under-screen fingerprint scanner)
+lib64/vendor.oneplus.hardware.display@1.0.so
+lib/vendor.oneplus.hardware.display@1.0.so

system.prop

@@ -5,6 +5,10 @@ ro.build.characteristics=nosdcard
 ro.setupwizard.mode=OPTIONAL
 ro.control_privapp_permissions=log
 
+# Fingerprint
+persist.vendor.sys.fp.fod.location.X_Y=595,2527
+persist.vendor.sys.fp.fod.size.width_height=250,250
+
 #
 # system.prop for sdm845
 #