gts3l-common: livedisplay: Add LiveDisplay HIDL implements

From LineageOS/android_hardware_samsung, excepts Exynos things

Signed-off-by: Deokgyu Yang <secugyu@gmail.com>
Change-Id: I68a86b8ccc8ae031a8c7b7aaccdeba68a9df256a

livedisplay/AdaptiveBacklight.cpp

@@ -0,0 +1,61 @@
+/*
+ * 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.
+ */
+
+#include <android-base/file.h>
+#include <android-base/strings.h>
+
+#include <fstream>
+
+#include "AdaptiveBacklight.h"
+
+using android::base::ReadFileToString;
+using android::base::Trim;
+using android::base::WriteStringToFile;
+
+namespace vendor {
+namespace lineage {
+namespace livedisplay {
+namespace V2_0 {
+namespace samsung {
+
+static constexpr const char* kBacklightPath = "/sys/class/lcd/panel/power_reduce";
+
+bool AdaptiveBacklight::isSupported() {
+    std::fstream backlight(kBacklightPath, backlight.in | backlight.out);
+    return backlight.good();
+}
+
+// Methods from ::vendor::lineage::livedisplay::V2_0::IAdaptiveBacklight follow.
+Return<bool> AdaptiveBacklight::isEnabled() {
+    std::string tmp;
+    int32_t contents = 0;
+
+    if (ReadFileToString(kBacklightPath, &tmp)) {
+        contents = std::stoi(Trim(tmp));
+    }
+
+    return contents > 0;
+}
+
+Return<bool> AdaptiveBacklight::setEnabled(bool enabled) {
+    return WriteStringToFile(enabled ? "1" : "0", kBacklightPath, true);
+}
+
+}  // namespace samsung
+}  // namespace V2_0
+}  // namespace livedisplay
+}  // namespace lineage
+}  // namespace vendor

livedisplay/AdaptiveBacklight.h

@@ -0,0 +1,55 @@
+/*
+ * 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_LIVEDISPLAY_V2_0_ADAPTIVEBACKLIGHT_H
+#define VENDOR_LINEAGE_LIVEDISPLAY_V2_0_ADAPTIVEBACKLIGHT_H
+
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+#include <vendor/lineage/livedisplay/2.0/IAdaptiveBacklight.h>
+
+namespace vendor {
+namespace lineage {
+namespace livedisplay {
+namespace V2_0 {
+namespace samsung {
+
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+
+class AdaptiveBacklight : public IAdaptiveBacklight {
+  public:
+    bool isSupported();
+
+    // Methods from ::vendor::lineage::livedisplay::V2_0::IAdaptiveBacklight follow.
+    Return<bool> isEnabled() override;
+    Return<bool> setEnabled(bool enabled) override;
+
+    // Methods from ::android::hidl::base::V1_0::IBase follow.
+};
+
+}  // namespace samsung
+}  // namespace V2_0
+}  // namespace livedisplay
+}  // namespace lineage
+}  // namespace vendor
+
+#endif  // VENDOR_LINEAGE_LIVEDISPLAY_V2_0_ADAPTIVEBACKLIGHT_H

livedisplay/Android.bp

@@ -0,0 +1,48 @@
+// 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_defaults {
+    name: "livedisplay_samsung_qcom_defaults",
+    defaults: ["hidl_defaults"],
+    relative_install_path: "hw",
+    srcs: [
+        "AdaptiveBacklight.cpp",
+        "DisplayColorCalibration.cpp",
+        "DisplayModes.cpp",
+        "ReadingEnhancement.cpp",
+        "SunlightEnhancement.cpp",
+        "service.cpp",
+    ],
+    shared_libs: [
+        "libbase",
+        "libbinder",
+        "libhidlbase",
+        "libutils",
+        "vendor.lineage.livedisplay@2.0",
+    ],
+}
+
+cc_binary {
+    name: "lineage.livedisplay@2.0-service.samsung-qcom",
+    init_rc: ["lineage.livedisplay@2.0-service.samsung-qcom.rc"],
+    defaults: ["livedisplay_samsung_qcom_defaults"],
+    cflags: ["-DLIVES_IN_SYSTEM"],
+}
+
+cc_binary {
+    name: "vendor.lineage.livedisplay@2.0-service.samsung-qcom",
+    init_rc: ["vendor.lineage.livedisplay@2.0-service.samsung-qcom.rc"],
+    defaults: ["livedisplay_samsung_qcom_defaults"],
+    vendor: true,
+}

livedisplay/DisplayColorCalibration.cpp

@@ -0,0 +1,79 @@
+/*
+ * 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.
+ */
+
+#include <android-base/file.h>
+#include <android-base/strings.h>
+
+#include <fstream>
+
+#include "DisplayColorCalibration.h"
+
+using android::base::ReadFileToString;
+using android::base::Split;
+using android::base::Trim;
+using android::base::WriteStringToFile;
+
+namespace vendor {
+namespace lineage {
+namespace livedisplay {
+namespace V2_0 {
+namespace samsung {
+
+bool DisplayColorCalibration::isSupported() {
+    std::fstream rgb(FILE_RGB, rgb.in | rgb.out);
+
+    return rgb.good();
+}
+
+// Methods from ::vendor::lineage::livedisplay::V2_0::IDisplayColorCalibration follow.
+Return<int32_t> DisplayColorCalibration::getMaxValue() {
+    return 32768;
+}
+
+Return<int32_t> DisplayColorCalibration::getMinValue() {
+    return 255;
+}
+
+Return<void> DisplayColorCalibration::getCalibration(getCalibration_cb _hidl_cb) {
+    std::vector<int32_t> rgb;
+    std::string tmp;
+
+    if (ReadFileToString(FILE_RGB, &tmp)) {
+        std::vector<std::string> colors = Split(Trim(tmp), " ");
+        for (const std::string& color : colors) {
+            rgb.push_back(std::stoi(color));
+        }
+    }
+
+    _hidl_cb(rgb);
+    return Void();
+}
+
+Return<bool> DisplayColorCalibration::setCalibration(const hidl_vec<int32_t>& rgb) {
+    std::string contents;
+
+    for (const int32_t& color : rgb) {
+        contents += std::to_string(color) + " ";
+    }
+
+    return WriteStringToFile(Trim(contents), FILE_RGB, true);
+}
+
+}  // namespace samsung
+}  // namespace V2_0
+}  // namespace livedisplay
+}  // namespace lineage
+}  // namespace vendor

livedisplay/DisplayColorCalibration.h

@@ -0,0 +1,51 @@
+/*
+ * 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_LIVEDISPLAY_V2_0_DISPLAYCOLORCALIBRATION_H
+#define VENDOR_LINEAGE_LIVEDISPLAY_V2_0_DISPLAYCOLORCALIBRATION_H
+
+#include <vendor/lineage/livedisplay/2.0/IDisplayColorCalibration.h>
+
+namespace vendor {
+namespace lineage {
+namespace livedisplay {
+namespace V2_0 {
+namespace samsung {
+
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+
+#define FILE_RGB "/sys/class/graphics/fb0/rgb"
+
+class DisplayColorCalibration : public IDisplayColorCalibration {
+  public:
+    bool isSupported();
+
+    // Methods from ::vendor::lineage::livedisplay::V2_0::IDisplayColorCalibration follow.
+    Return<int32_t> getMaxValue() override;
+    Return<int32_t> getMinValue() override;
+    Return<void> getCalibration(getCalibration_cb _hidl_cb) override;
+    Return<bool> setCalibration(const hidl_vec<int32_t>& rgb) override;
+};
+
+}  // namespace samsung
+}  // namespace V2_0
+}  // namespace livedisplay
+}  // namespace lineage
+}  // namespace vendor
+
+#endif  // VENDOR_LINEAGE_LIVEDISPLAY_V2_0_DISPLAYCOLORCALIBRATION_H

livedisplay/DisplayModes.cpp

@@ -0,0 +1,136 @@
+/*
+ * 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 "DisplayModesService"
+
+#include "DisplayModes.h"
+#include <android-base/logging.h>
+#include <fstream>
+
+namespace vendor {
+namespace lineage {
+namespace livedisplay {
+namespace V2_0 {
+namespace samsung {
+
+static constexpr const char* kModePath = "/sys/class/mdnie/mdnie/mode";
+static constexpr const char* kModeMaxPath = "/sys/class/mdnie/mdnie/mode_max";
+static constexpr const char* kDefaultPath = "/data/vendor/display/.displaymodedefault";
+
+const std::map<int32_t, std::string> DisplayModes::kModeMap = {
+    // clang-format off
+    {0, "Dynamic"},
+    {1, "Standard"},
+    {2, "Natural"},
+    {3, "Cinema"},
+    {4, "Adaptive"},
+    {5, "Reading"},
+    // clang-format on
+};
+
+DisplayModes::DisplayModes() : mDefaultModeId(0) {
+    std::ifstream defaultFile(kDefaultPath);
+    int value;
+
+    defaultFile >> value;
+    LOG(DEBUG) << "Default file read result " << value << " fail " << defaultFile.fail();
+    if (defaultFile.fail()) {
+        return;
+    }
+
+    for (const auto& entry : kModeMap) {
+        if (value == entry.first) {
+            mDefaultModeId = entry.first;
+            break;
+        }
+    }
+
+    setDisplayMode(mDefaultModeId, false);
+}
+
+bool DisplayModes::isSupported() {
+    std::ofstream modeFile(kModePath);
+    return modeFile.good();
+}
+
+// Methods from ::vendor::lineage::livedisplay::V2_0::IDisplayModes follow.
+Return<void> DisplayModes::getDisplayModes(getDisplayModes_cb resultCb) {
+    std::ifstream maxModeFile(kModeMaxPath);
+    int value;
+    std::vector<DisplayMode> modes;
+    if (!maxModeFile.fail()) {
+        maxModeFile >> value;
+    } else {
+        value = kModeMap.size();
+    }
+    for (const auto& entry : kModeMap) {
+        if (entry.first < value) modes.push_back({entry.first, entry.second});
+    }
+    resultCb(modes);
+    return Void();
+}
+
+Return<void> DisplayModes::getCurrentDisplayMode(getCurrentDisplayMode_cb resultCb) {
+    int32_t currentModeId = mDefaultModeId;
+    std::ifstream modeFile(kModePath);
+    int value;
+    modeFile >> value;
+    if (!modeFile.fail()) {
+        for (const auto& entry : kModeMap) {
+            if (value == entry.first) {
+                currentModeId = entry.first;
+                break;
+            }
+        }
+    }
+    resultCb({currentModeId, kModeMap.at(currentModeId)});
+    return Void();
+}
+
+Return<void> DisplayModes::getDefaultDisplayMode(getDefaultDisplayMode_cb resultCb) {
+    resultCb({mDefaultModeId, kModeMap.at(mDefaultModeId)});
+    return Void();
+}
+
+Return<bool> DisplayModes::setDisplayMode(int32_t modeID, bool makeDefault) {
+    const auto iter = kModeMap.find(modeID);
+    if (iter == kModeMap.end()) {
+        return false;
+    }
+    std::ofstream modeFile(kModePath);
+    modeFile << iter->first;
+    if (modeFile.fail()) {
+        return false;
+    }
+
+    if (makeDefault) {
+        std::ofstream defaultFile(kDefaultPath);
+        defaultFile << iter->first;
+        if (defaultFile.fail()) {
+            return false;
+        }
+        mDefaultModeId = iter->first;
+    }
+    return true;
+}
+
+// Methods from ::android::hidl::base::V1_0::IBase follow.
+
+}  // namespace samsung
+}  // namespace V2_0
+}  // namespace livedisplay
+}  // namespace lineage
+}  // namespace vendor

livedisplay/DisplayModes.h

@@ -0,0 +1,61 @@
+/*
+ * 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_LIVEDISPLAY_V2_0_DISPLAYMODES_H
+#define VENDOR_LINEAGE_LIVEDISPLAY_V2_0_DISPLAYMODES_H
+
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+#include <vendor/lineage/livedisplay/2.0/IDisplayModes.h>
+
+namespace vendor {
+namespace lineage {
+namespace livedisplay {
+namespace V2_0 {
+namespace samsung {
+
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+
+class DisplayModes : public IDisplayModes {
+  public:
+    DisplayModes();
+    bool isSupported();
+
+    // Methods from ::vendor::lineage::livedisplay::V2_0::IDisplayModes follow.
+    Return<void> getDisplayModes(getDisplayModes_cb resultCb) override;
+    Return<void> getCurrentDisplayMode(getCurrentDisplayMode_cb resultCb) override;
+    Return<void> getDefaultDisplayMode(getDefaultDisplayMode_cb resultCb) override;
+    Return<bool> setDisplayMode(int32_t modeID, bool makeDefault) override;
+
+    // Methods from ::android::hidl::base::V1_0::IBase follow.
+  private:
+    static const std::map<int32_t, std::string> kModeMap;
+    int32_t mDefaultModeId;
+};
+
+}  // namespace samsung
+}  // namespace V2_0
+}  // namespace livedisplay
+}  // namespace lineage
+}  // namespace vendor
+
+#endif  // VENDOR_LINEAGE_LIVEDISPLAY_V2_0_DISPLAYMODES_H

livedisplay/ReadingEnhancement.cpp

@@ -0,0 +1,63 @@
+/*
+ * 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.
+ */
+
+#include <android-base/file.h>
+#include <android-base/strings.h>
+
+#include <fstream>
+
+#include "ReadingEnhancement.h"
+
+using android::base::ReadFileToString;
+using android::base::Trim;
+using android::base::WriteStringToFile;
+
+namespace vendor {
+namespace lineage {
+namespace livedisplay {
+namespace V2_0 {
+namespace samsung {
+
+static constexpr const char* kREPath = "/sys/class/mdnie/mdnie/accessibility";
+
+// Methods from ::vendor::lineage::livedisplay::V2_0::ISunlightEnhancement follow.
+bool ReadingEnhancement::isSupported() {
+    std::fstream re(kREPath, re.in | re.out);
+    return re.good();
+}
+
+// Methods from ::vendor::lineage::livedisplay::V2_0::IReadingEnhancement follow.
+Return<bool> ReadingEnhancement::isEnabled() {
+    std::string contents;
+
+    if (ReadFileToString(kREPath, &contents)) {
+        contents = Trim(contents);
+    }
+
+    return !contents.compare("Current accessibility : DSI0 : GRAYSCALE") || !contents.compare("4");
+}
+
+Return<bool> ReadingEnhancement::setEnabled(bool enabled) {
+    return WriteStringToFile(enabled ? "4" : "0", kREPath, true);
+}
+
+// Methods from ::android::hidl::base::V1_0::IBase follow.
+
+}  // namespace samsung
+}  // namespace V2_0
+}  // namespace livedisplay
+}  // namespace lineage
+}  // namespace vendor

livedisplay/ReadingEnhancement.h

@@ -0,0 +1,55 @@
+/*
+ * 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_LIVEDISPLAY_V2_0_READINGENHANCEMENT_H
+#define VENDOR_LINEAGE_LIVEDISPLAY_V2_0_READINGENHANCEMENT_H
+
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+#include <vendor/lineage/livedisplay/2.0/IReadingEnhancement.h>
+
+namespace vendor {
+namespace lineage {
+namespace livedisplay {
+namespace V2_0 {
+namespace samsung {
+
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+
+class ReadingEnhancement : public IReadingEnhancement {
+  public:
+    bool isSupported();
+
+    // Methods from ::vendor::lineage::livedisplay::V2_0::IReadingEnhancement follow.
+    Return<bool> isEnabled() override;
+    Return<bool> setEnabled(bool) override;
+
+    // Methods from ::android::hidl::base::V1_0::IBase follow.
+};
+
+}  // namespace samsung
+}  // namespace V2_0
+}  // namespace livedisplay
+}  // namespace lineage
+}  // namespace vendor
+
+#endif  // VENDOR_LINEAGE_LIVEDISPLAY_V2_0_READINGENHANCEMENT_H

livedisplay/SunlightEnhancement.cpp

@@ -0,0 +1,77 @@
+/*
+ * 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.
+ */
+
+#include <android-base/file.h>
+#include <android-base/strings.h>
+
+#include <fstream>
+
+#include "SunlightEnhancement.h"
+
+using android::base::ReadFileToString;
+using android::base::Trim;
+using android::base::WriteStringToFile;
+
+namespace vendor {
+namespace lineage {
+namespace livedisplay {
+namespace V2_0 {
+namespace samsung {
+
+static constexpr const char* kHBMPath = "/sys/class/lcd/panel/panel/auto_brightness";
+static constexpr const char* kSREPath = "/sys/class/mdnie/mdnie/outdoor";
+
+// Methods from ::vendor::lineage::livedisplay::V2_0::ISunlightEnhancement follow.
+bool SunlightEnhancement::isSupported() {
+    std::fstream sre(kSREPath, sre.in | sre.out);
+    std::fstream hbm(kHBMPath, hbm.in | hbm.out);
+
+    if (hbm.good()) {
+        mHasHBM = true;
+    }
+
+    return sre.good();
+}
+
+// Methods from ::vendor::lineage::livedisplay::V2_0::IAdaptiveBacklight follow.
+Return<bool> SunlightEnhancement::isEnabled() {
+    std::string tmp;
+    int32_t statusSRE = 0;
+    int32_t statusHBM = 0;
+    if (ReadFileToString(kSREPath, &tmp)) {
+        statusSRE = std::stoi(Trim(tmp));
+    }
+
+    if (mHasHBM && ReadFileToString(kHBMPath, &tmp)) {
+        statusHBM = std::stoi(Trim(tmp));
+    }
+
+    return ((statusSRE == 1 && statusHBM == 6) || statusSRE == 1);
+}
+
+Return<bool> SunlightEnhancement::setEnabled(bool enabled) {
+    if (mHasHBM) {
+        WriteStringToFile(enabled ? "6" : "0", kHBMPath, true);
+    }
+
+    return WriteStringToFile(enabled ? "1" : "0", kSREPath, true);
+}
+
+}  // namespace samsung
+}  // namespace V2_0
+}  // namespace livedisplay
+}  // namespace lineage
+}  // namespace vendor

livedisplay/SunlightEnhancement.h

@@ -0,0 +1,57 @@
+/*
+ * 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_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 samsung {
+
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+
+class SunlightEnhancement : public ISunlightEnhancement {
+  public:
+    bool isSupported();
+
+    // Methods from ::vendor::lineage::livedisplay::V2_0::ISunlightEnhancement follow.
+    Return<bool> isEnabled() override;
+    Return<bool> setEnabled(bool enabled) override;
+
+    // Methods from ::android::hidl::base::V1_0::IBase follow.
+  private:
+    bool mHasHBM = false;
+};
+
+}  // namespace samsung
+}  // namespace V2_0
+}  // namespace livedisplay
+}  // namespace lineage
+}  // namespace vendor
+
+#endif  // VENDOR_LINEAGE_LIVEDISPLAY_V2_0_SUNLIGHTENHANCEMENT_H

livedisplay/lineage.livedisplay@2.0-service.samsung-qcom.rc

@@ -0,0 +1,7 @@
+on post-fs-data
+    mkdir /data/vendor/display 0770 system system
+
+service livedisplay-hal-2-0-samsung-qcom /system/bin/hw/lineage.livedisplay@2.0-service.samsung-qcom
+    class late_start
+    user system
+    group system

livedisplay/service.cpp

@@ -0,0 +1,147 @@
+/*
+ * 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.
+ */
+
+#ifdef LIVES_IN_SYSTEM
+#define LOG_TAG "lineage.livedisplay@2.0-service.samsung-qcom"
+#else
+#define LOG_TAG "vendor.lineage.livedisplay@2.0-service.samsung-qcom"
+#endif
+
+#include <android-base/logging.h>
+#include <binder/ProcessState.h>
+#include <hidl/HidlTransportSupport.h>
+
+#include "AdaptiveBacklight.h"
+#include "DisplayColorCalibration.h"
+#include "DisplayModes.h"
+#include "ReadingEnhancement.h"
+#include "SunlightEnhancement.h"
+
+using android::hardware::configureRpcThreadpool;
+using android::hardware::joinRpcThreadpool;
+using android::sp;
+using android::status_t;
+using android::OK;
+
+using vendor::lineage::livedisplay::V2_0::samsung::AdaptiveBacklight;
+using vendor::lineage::livedisplay::V2_0::samsung::DisplayColorCalibration;
+using vendor::lineage::livedisplay::V2_0::samsung::DisplayModes;
+using vendor::lineage::livedisplay::V2_0::samsung::ReadingEnhancement;
+using vendor::lineage::livedisplay::V2_0::samsung::SunlightEnhancement;
+
+int main() {
+    sp<AdaptiveBacklight> adaptiveBacklight;
+    sp<DisplayColorCalibration> displayColorCalibration;
+    sp<DisplayModes> displayModes;
+    sp<ReadingEnhancement> readingEnhancement;
+    sp<SunlightEnhancement> sunlightEnhancement;
+    status_t status;
+
+    LOG(INFO) << "LiveDisplay HAL service is starting.";
+
+    adaptiveBacklight = new AdaptiveBacklight();
+    if (adaptiveBacklight == nullptr) {
+        LOG(ERROR)
+            << "Can not create an instance of LiveDisplay HAL AdaptiveBacklight Iface, exiting.";
+        goto shutdown;
+    }
+
+    displayColorCalibration = new DisplayColorCalibration();
+    if (displayColorCalibration == nullptr) {
+        LOG(ERROR) << "Can not create an instance of LiveDisplay HAL DisplayColorCalibration "
+                      "Iface, exiting.";
+        goto shutdown;
+    }
+
+    displayModes = new DisplayModes();
+    if (displayModes == nullptr) {
+        LOG(ERROR) << "Can not create an instance of LiveDisplay HAL DisplayModes Iface, exiting.";
+        goto shutdown;
+    }
+
+    readingEnhancement = new ReadingEnhancement();
+    if (readingEnhancement == nullptr) {
+        LOG(ERROR)
+            << "Can not create an instance of LiveDisplay HAL ReadingEnhancement Iface, exiting.";
+        goto shutdown;
+    }
+
+    sunlightEnhancement = new SunlightEnhancement();
+    if (sunlightEnhancement == nullptr) {
+        LOG(ERROR)
+            << "Can not create an instance of LiveDisplay HAL SunlightEnhancement Iface, exiting.";
+        goto shutdown;
+    }
+
+    configureRpcThreadpool(1, true /*callerWillJoin*/);
+
+    if (adaptiveBacklight->isSupported()) {
+        status = adaptiveBacklight->registerAsService();
+        if (status != OK) {
+            LOG(ERROR) << "Could not register service for LiveDisplay HAL AdaptiveBacklight Iface ("
+                       << status << ")";
+            goto shutdown;
+        }
+    }
+
+    if (displayColorCalibration->isSupported()) {
+        status = displayColorCalibration->registerAsService();
+        if (status != OK) {
+            LOG(ERROR)
+                << "Could not register service for LiveDisplay HAL DisplayColorCalibration Iface ("
+                << status << ")";
+            goto shutdown;
+        }
+    }
+
+    if (displayModes->isSupported()) {
+        status = displayModes->registerAsService();
+        if (status != OK) {
+            LOG(ERROR) << "Could not register service for LiveDisplay HAL DisplayModes Iface ("
+                       << status << ")";
+            goto shutdown;
+        }
+    }
+
+    if (readingEnhancement->isSupported()) {
+        status = readingEnhancement->registerAsService();
+        if (status != OK) {
+            LOG(ERROR)
+                << "Could not register service for LiveDisplay HAL ReadingEnhancement Iface ("
+                << status << ")";
+            goto shutdown;
+        }
+    }
+
+    if (sunlightEnhancement->isSupported()) {
+        status = sunlightEnhancement->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
+
+shutdown:
+    // In normal operation, we don't expect the thread pool to shutdown
+    LOG(ERROR) << "LiveDisplay HAL service is shutting down.";
+    return 1;
+}

livedisplay/vendor.lineage.livedisplay@2.0-service.samsung-qcom.rc

@@ -0,0 +1,26 @@
+on init
+    # LiveDisplay sysfs
+    chown system system /sys/devices/virtual/graphics/fb0/acl
+    chmod 0660 /sys/devices/virtual/graphics/fb0/acl
+    chown system system /sys/devices/virtual/graphics/fb0/aco
+    chmod 0660 /sys/devices/virtual/graphics/fb0/aco
+    chown system system /sys/devices/virtual/graphics/fb0/cabc
+    chmod 0660 /sys/devices/virtual/graphics/fb0/cabc
+    chown system system /sys/devices/virtual/graphics/fb0/hbm
+    chmod 0660 /sys/devices/virtual/graphics/fb0/hbm
+    chown system system /sys/devices/virtual/graphics/fb0/rgb
+    chmod 0660 /sys/devices/virtual/graphics/fb0/rgb
+    chown system system /sys/devices/virtual/graphics/fb0/sre
+    chmod 0660 /sys/devices/virtual/graphics/fb0/sre
+    chown system system /sys/devices/virtual/graphics/fb0/color_enhance
+    chmod 0660 /sys/devices/virtual/graphics/fb0/color_enhance
+    chown system system /sys/devices/virtual/graphics/fb0/reading_mode
+    chmod 0660 /sys/devices/virtual/graphics/fb0/reading_mode
+
+on post-fs-data
+    mkdir /data/vendor/display 0770 system system
+
+service vendor.livedisplay-hal-2-0-samsung-qcom /vendor/bin/hw/vendor.lineage.livedisplay@2.0-service.samsung-qcom
+    class late_start
+    user system
+    group system