fajita: Introduce in-screen fingerprint HAL

Change-Id: I0c034def5803ab80e6158a4c4d1caf1eeaa92841

BoardConfig.mk

@@ -22,6 +22,9 @@ DEVICE_PATH := device/oneplus/fajita
 # Bluetooth
 BOARD_BLUETOOTH_BDROID_BUILDCFG_INCLUDE_DIR := $(DEVICE_PATH)/bluetooth/include
 
+# HIDL
+DEVICE_FRAMEWORK_MANIFEST_FILE += $(DEVICE_PATH)/framework_manifest.xml
+
 # Kernel
 TARGET_KERNEL_CONFIG := enchilada_defconfig
 

device.mk

@@ -29,6 +29,10 @@ DEVICE_PACKAGE_OVERLAYS += \
     $(LOCAL_PATH)/overlay \
     $(LOCAL_PATH)/overlay-lineage
 
+# Permissions
+PRODUCT_COPY_FILES += \
+    vendor/lineage/config/permissions/vendor.lineage.biometrics.fingerprint.inscreen.xml:system/etc/permissions/vendor.lineage.biometrics.fingerprint.inscreen.xml
+
 # Device uses high-density artwork where available
 PRODUCT_AAPT_CONFIG := normal
 PRODUCT_AAPT_PREF_CONFIG := xxhdpi
@@ -37,6 +41,10 @@ PRODUCT_AAPT_PREF_CONFIG := xxhdpi
 TARGET_SCREEN_HEIGHT := 2340
 TARGET_SCREEN_WIDTH := 1080
 
+# Fingerprint
+PRODUCT_PACKAGES += \
+    [email protected]_fajita
+
 # Inherit from oneplus sdm845-common
 $(call inherit-product, device/oneplus/sdm845-common/common.mk)
 

fod/Android.bp

@@ -0,0 +1,34 @@
+//
+// Copyright (C) 2019 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.
+
+cc_binary {
+    relative_install_path: "hw",
+    defaults: ["hidl_defaults"],
+    name: "[email protected]_fajita",
+    init_rc: ["[email protected]_fajita.rc"],
+    srcs: ["service.cpp", "FingerprintInscreen.cpp"],
+    shared_libs: [
+        "libbase",
+        "libhardware",
+        "libhidlbase",
+        "libhidltransport",
+        "liblog",
+        "libhwbinder",
+        "libutils",
+        "[email protected]",
+        "[email protected]",
+        "[email protected]",
+    ],
+}

fod/FingerprintInscreen.cpp

@@ -0,0 +1,190 @@
+/*
+ * Copyright (C) 2019 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.
+ */
+
+#define LOG_TAG "FingerprintInscreenService"
+
+#include "FingerprintInscreen.h"
+#include <android-base/logging.h>
+#include <hidl/HidlTransportSupport.h>
+#include <fstream>
+
+#define FINGERPRINT_ACQUIRED_VENDOR 6
+
+#define OP_ENABLE_FP_LONGPRESS 3
+#define OP_DISABLE_FP_LONGPRESS 4
+#define OP_RESUME_FP_ENROLL 8
+#define OP_FINISH_FP_ENROLL 10
+
+#define OP_DISPLAY_AOD_MODE 8
+#define OP_DISPLAY_NOTIFY_PRESS 9
+#define OP_DISPLAY_SET_DIM 10
+
+// This is not a typo by me. It's by OnePlus.
+#define HBM_ENABLE_PATH "/sys/class/drm/card0-DSI-1/op_friginer_print_hbm"
+#define DIM_AMOUNT_PATH "/sys/class/drm/card0-DSI-1/dim_alpha"
+
+namespace vendor {
+namespace lineage {
+namespace biometrics {
+namespace fingerprint {
+namespace inscreen {
+namespace V1_0 {
+namespace implementation {
+
+/*
+ * Write value to path and close file.
+ */
+template <typename T>
+static void set(const std::string& path, const T& value) {
+    std::ofstream file(path);
+    file << value;
+}
+
+template <typename T>
+static T get(const std::string& path, const T& def) {
+    std::ifstream file(path);
+    T result;
+
+    file >> result;
+    return file.fail() ? def : result;
+}
+
+FingerprintInscreen::FingerprintInscreen() {
+    this->mVendorFpService = IVendorFingerprintExtensions::getService();
+    this->mVendorDisplayService = IOneplusDisplay::getService();
+}
+
+Return<void> FingerprintInscreen::onStartEnroll() {
+    this->mVendorFpService->updateStatus(OP_DISABLE_FP_LONGPRESS);
+    this->mVendorFpService->updateStatus(OP_RESUME_FP_ENROLL);
+
+    return Void();
+}
+
+Return<void> FingerprintInscreen::onFinishEnroll() {
+    this->mVendorFpService->updateStatus(OP_FINISH_FP_ENROLL);
+
+    return Void();
+}
+
+Return<void> FingerprintInscreen::onPress() {
+    this->mVendorDisplayService->setMode(OP_DISPLAY_AOD_MODE, 2);
+    this->mVendorDisplayService->setMode(OP_DISPLAY_SET_DIM, 1);
+    set(HBM_ENABLE_PATH, 1);
+    this->mVendorDisplayService->setMode(OP_DISPLAY_NOTIFY_PRESS, 1);
+
+    return Void();
+}
+
+Return<void> FingerprintInscreen::onRelease() {
+    this->mVendorDisplayService->setMode(OP_DISPLAY_AOD_MODE, 0);
+    this->mVendorDisplayService->setMode(OP_DISPLAY_SET_DIM, 0);
+    set(HBM_ENABLE_PATH, 0);
+    this->mVendorDisplayService->setMode(OP_DISPLAY_NOTIFY_PRESS, 0);
+
+    return Void();
+}
+
+Return<void> FingerprintInscreen::onShowFODView() {
+    return Void();
+}
+
+Return<void> FingerprintInscreen::onHideFODView() {
+    this->mVendorDisplayService->setMode(OP_DISPLAY_AOD_MODE, 0);
+    this->mVendorDisplayService->setMode(OP_DISPLAY_SET_DIM, 0);
+    set(HBM_ENABLE_PATH, 0);
+    this->mVendorDisplayService->setMode(OP_DISPLAY_NOTIFY_PRESS, 0);
+
+    return Void();
+}
+
+Return<bool> FingerprintInscreen::handleAcquired(int32_t acquiredInfo, int32_t vendorCode) {
+    std::lock_guard<std::mutex> _lock(mCallbackLock);
+    if (mCallback == nullptr) {
+        return false;
+    }
+
+    if (acquiredInfo == FINGERPRINT_ACQUIRED_VENDOR) {
+        if (vendorCode == 0) {
+            Return<void> ret = mCallback->onFingerDown();
+            if (!ret.isOk()) {
+                LOG(ERROR) << "FingerDown() error: " << ret.description();
+            }
+            return true;
+        }
+
+        if (vendorCode == 1) {
+            Return<void> ret = mCallback->onFingerUp();
+            if (!ret.isOk()) {
+                LOG(ERROR) << "FingerUp() error: " << ret.description();
+            }
+            return true;
+        }
+    }
+
+    return false;
+}
+
+Return<bool> FingerprintInscreen::handleError(int32_t, int32_t) {
+    return false;
+}
+
+Return<void> FingerprintInscreen::setLongPressEnabled(bool enabled) {
+    this->mVendorFpService->updateStatus(
+            enabled ? OP_ENABLE_FP_LONGPRESS : OP_DISABLE_FP_LONGPRESS);
+
+    return Void();
+}
+
+Return<int32_t> FingerprintInscreen::getDimAmount(int32_t) {
+    int dimAmount = get(DIM_AMOUNT_PATH, 0);
+    LOG(INFO) << "dimAmount = " << dimAmount;
+
+    return dimAmount;
+}
+
+Return<bool> FingerprintInscreen::shouldBoostBrightness() {
+    return false;
+}
+
+Return<void> FingerprintInscreen::setCallback(const sp<IFingerprintInscreenCallback>& callback) {
+    {
+        std::lock_guard<std::mutex> _lock(mCallbackLock);
+        mCallback = callback;
+    }
+
+    return Void();
+}
+
+Return<int32_t> FingerprintInscreen::getPositionX() {
+    return 444;
+}
+
+Return<int32_t> FingerprintInscreen::getPositionY() {
+    return 1966;
+}
+
+Return<int32_t> FingerprintInscreen::getSize() {
+    return 190;
+}
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace inscreen
+}  // namespace fingerprint
+}  // namespace biometrics
+}  // namespace lineage
+}  // namespace vendor

fod/FingerprintInscreen.h

@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2019 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.
+ */
+#ifndef VENDOR_LINEAGE_BIOMETRICS_FINGERPRINT_INSCREEN_V1_0_FINGERPRINTINSCREEN_H
+#define VENDOR_LINEAGE_BIOMETRICS_FINGERPRINT_INSCREEN_V1_0_FINGERPRINTINSCREEN_H
+
+#include <vendor/lineage/biometrics/fingerprint/inscreen/1.0/IFingerprintInscreen.h>
+#include <vendor/oneplus/fingerprint/extension/1.0/IVendorFingerprintExtensions.h>
+#include <vendor/oneplus/hardware/display/1.0/IOneplusDisplay.h>
+
+namespace vendor {
+namespace lineage {
+namespace biometrics {
+namespace fingerprint {
+namespace inscreen {
+namespace V1_0 {
+namespace implementation {
+
+using ::android::sp;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::vendor::oneplus::fingerprint::extension::V1_0::IVendorFingerprintExtensions;
+using ::vendor::oneplus::hardware::display::V1_0::IOneplusDisplay;
+
+class FingerprintInscreen : public IFingerprintInscreen {
+  public:
+    FingerprintInscreen();
+
+    Return<void> onStartEnroll() override;
+    Return<void> onFinishEnroll() override;
+    Return<void> onPress() override;
+    Return<void> onRelease() override;
+    Return<void> onShowFODView() override;
+    Return<void> onHideFODView() override;
+    Return<bool> handleAcquired(int32_t acquiredInfo, int32_t vendorCode) override;
+    Return<bool> handleError(int32_t error, int32_t vendorCode) override;
+    Return<void> setLongPressEnabled(bool enabled) override;
+    Return<int32_t> getDimAmount(int32_t cur_brightness) override;
+    Return<bool> shouldBoostBrightness() override;
+    Return<void> setCallback(const sp<IFingerprintInscreenCallback>& callback) override;
+    Return<int32_t> getPositionX() override;
+    Return<int32_t> getPositionY() override;
+    Return<int32_t> getSize() override;
+
+  private:
+    sp<IOneplusDisplay> mVendorDisplayService;
+    sp<IVendorFingerprintExtensions> mVendorFpService;
+
+    std::mutex mCallbackLock;
+    sp<IFingerprintInscreenCallback> mCallback;
+};
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace inscreen
+}  // namespace fingerprint
+}  // namespace biometrics
+}  // namespace lineage
+}  // namespace vendor
+
+#endif  // VENDOR_LINEAGE_BIOMETRICS_FINGERPRINT_INSCREEN_V1_0_FINGERPRINTINSCREEN_H

fod/lineage.biometrics.fingerprint.inscreen@1.0-service.oneplus_fajita.rc

@@ -0,0 +1,10 @@
+on init
+    chown system system /sys/class/drm/card0-DSI-1/op_friginer_print_hbm
+    chmod 0660 /sys/class/drm/card0-DSI-1/op_friginer_print_hbm
+
+service fingerprint-inscreen-1-0 /system/bin/hw/[email protected]_fajita
+    interface [email protected]::IFingerprintInscreen default
+    class hal
+    user system
+    group system
+    shutdown critical

fod/service.cpp

@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2019 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.
+ */
+
+#define LOG_TAG "[email protected]_fajita"
+
+#include <android-base/logging.h>
+#include <hidl/HidlTransportSupport.h>
+
+#include "FingerprintInscreen.h"
+
+using android::hardware::configureRpcThreadpool;
+using android::hardware::joinRpcThreadpool;
+
+using vendor::lineage::biometrics::fingerprint::inscreen::V1_0::IFingerprintInscreen;
+using vendor::lineage::biometrics::fingerprint::inscreen::V1_0::implementation::FingerprintInscreen;
+
+using android::OK;
+using android::status_t;
+
+int main() {
+    android::sp<IFingerprintInscreen> service = new FingerprintInscreen();
+
+    configureRpcThreadpool(1, true);
+
+    status_t status = service->registerAsService();
+    if (status != OK) {
+        LOG(ERROR) << "Cannot register FOD HAL service.";
+        return 1;
+    }
+
+    LOG(INFO) << "FOD HAL service ready.";
+
+    joinRpcThreadpool();
+
+    LOG(ERROR) << "FOD HAL service failed to join thread pool.";
+    return 1;
+}