livedisplay: Implement ISunlightEnhancement interface

Change-Id: I728653099f9a57a85f1ce2ffa93b4e62981208fa

hidl/livedisplay/Android.bp

@@ -21,6 +21,7 @@ cc_binary {
     srcs: [
         ":vendor.lineage.livedisplay@2.0-sdm-pa",
         ":vendor.lineage.livedisplay@2.0-sdm-utils",
+        "SunlightEnhancement.cpp",
         "service.cpp",
     ],
     shared_libs: [

hidl/livedisplay/SunlightEnhancement.cpp

@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+
+#include "SunlightEnhancement.h"
+#include <android-base/file.h>
+#include <android-base/strings.h>
+
+using ::android::base::ReadFileToString;
+using ::android::base::Trim;
+using ::android::base::WriteStringToFile;
+
+namespace {
+
+constexpr const char* kHbmPath = "/sys/kernel/oplus_display/hbm";
+
+}  // anonymous namespace
+
+namespace vendor {
+namespace lineage {
+namespace livedisplay {
+namespace V2_0 {
+namespace implementation {
+
+Return<bool> SunlightEnhancement::isEnabled() {
+    std::string tmp;
+    int32_t contents = 0;
+
+    if (ReadFileToString(kHbmPath, &tmp)) {
+        contents = std::stoi(Trim(tmp));
+    }
+
+    return contents > 0;
+}
+
+Return<bool> SunlightEnhancement::setEnabled(bool enabled) {
+    return WriteStringToFile(std::to_string(enabled), kHbmPath, true);
+}
+
+}  // namespace implementation
+}  // namespace V2_0
+}  // namespace livedisplay
+}  // namespace lineage
+}  // namespace vendor

hidl/livedisplay/SunlightEnhancement.h

@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2019-2021 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_LIVEDISPLAY_V2_0_SUNLIGHTENHANCEMENT_H
+#define VENDOR_LINEAGE_LIVEDISPLAY_V2_0_SUNLIGHTENHANCEMENT_H
+
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+#include <vendor/lineage/livedisplay/2.0/ISunlightEnhancement.h>
+
+namespace vendor {
+namespace lineage {
+namespace livedisplay {
+namespace V2_0 {
+namespace implementation {
+
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+
+class SunlightEnhancement : public ISunlightEnhancement {
+  public:
+    // Methods from ::vendor::lineage::livedisplay::V2_0::ISunlightEnhancement follow.
+    Return<bool> isEnabled() override;
+    Return<bool> setEnabled(bool enabled) override;
+};
+
+}  // namespace implementation
+}  // namespace V2_0
+}  // namespace livedisplay
+}  // namespace lineage
+}  // namespace vendor
+
+#endif  // VENDOR_LINEAGE_LIVEDISPLAY_V2_0_SUNLIGHTENHANCEMENT_H

hidl/livedisplay/service.cpp

@@ -21,6 +21,8 @@
 #include <hidl/HidlTransportSupport.h>
 #include <livedisplay/sdm/PictureAdjustment.h>
 
+#include "SunlightEnhancement.h"
+
 using ::android::OK;
 using ::android::sp;
 using ::android::status_t;
@@ -29,6 +31,8 @@ using ::android::hardware::joinRpcThreadpool;
 
 using ::vendor::lineage::livedisplay::V2_0::sdm::PictureAdjustment;
 using ::vendor::lineage::livedisplay::V2_0::sdm::SDMController;
+using ::vendor::lineage::livedisplay::V2_0::ISunlightEnhancement;
+using ::vendor::lineage::livedisplay::V2_0::implementation::SunlightEnhancement;
 
 int main() {
     status_t status = OK;
@@ -40,6 +44,7 @@ int main() {
     std::shared_ptr<SDMController> controller = std::make_shared<SDMController>();
 
     sp<PictureAdjustment> pa = new PictureAdjustment(controller);
+    sp<SunlightEnhancement> se = new SunlightEnhancement();
 
     configureRpcThreadpool(1, true /*callerWillJoin*/);
 
@@ -50,6 +55,13 @@ int main() {
         goto shutdown;
     }
 
+    status = se->registerAsService();
+    if (status != OK) {
+        LOG(ERROR) << "Could not register service for LiveDisplay HAL SunlightEnhancement Iface ("
+                   << status << ")";
+        goto shutdown;
+    }
+
     LOG(INFO) << "LiveDisplay HAL service is ready.";
     joinRpcThreadpool();
     // Should not pass this line

hidl/livedisplay/vendor.lineage.livedisplay@2.0-service.oplus.xml

@@ -3,5 +3,9 @@
         <name>vendor.lineage.livedisplay</name>
         <transport>hwbinder</transport>
         <version>2.0</version>
+       <interface>
+            <name>ISunlightEnhancement</name>
+            <instance>default</instance>
+        </interface>
     </hal>
 </manifest>