davinci: Implement SunlightEnhancement LiveDisplay HAL

Change-Id: I17b0215ad78d86989c146291552c5e6e7b6a689d

configs/hidl/manifest.xml

@@ -431,15 +431,6 @@
         </interface>
         <fqname>@2.1::IGoodixFingerprintDaemon/default</fqname>
     </hal>
-    <hal format="hidl">
-        <name>vendor.lineage.livedisplay</name>
-        <transport>hwbinder</transport>
-        <version>2.0</version>
-        <interface>
-            <name>IPictureAdjustment</name>
-            <instance>default</instance>
-        </interface>
-    </hal>
     <hal format="hidl">
         <name>vendor.lineage.power</name>
         <transport>hwbinder</transport>

device.mk

@@ -197,7 +197,8 @@ PRODUCT_PACKAGES += \
 
 # LiveDisplay
 PRODUCT_PACKAGES += \
-    vendor.lineage.livedisplay@2.0-service-sdm
+    vendor.lineage.livedisplay@2.0-service-sdm \
+    vendor.lineage.livedisplay@2.0-service.davinci
 
 # Media
 PRODUCT_PACKAGES += \

livedisplay/Android.bp

@@ -0,0 +1,35 @@
+//
+// Copyright (C) 2019-2020 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 {
+    name: "vendor.lineage.livedisplay@2.0-service.davinci",
+    defaults: ["hidl_defaults"],
+    vintf_fragments: ["vendor.lineage.livedisplay@2.0-service.davinci.xml"],
+    init_rc: ["vendor.lineage.livedisplay@2.0-service.davinci.rc"],
+    relative_install_path: "hw",
+    srcs: [
+        "SunlightEnhancement.cpp",
+        "service.cpp",
+    ],
+    vendor: true,
+    shared_libs: [
+        "libbase",
+        "libbinder",
+        "libhidlbase",
+        "libhidltransport",
+        "libutils",
+        "vendor.lineage.livedisplay@2.0",
+    ],
+}

livedisplay/SunlightEnhancement.cpp

@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2019-2020 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 "SunlightEnhancementService"
+
+#include <android-base/file.h>
+#include <android-base/logging.h>
+#include <android-base/strings.h>
+
+#include "SunlightEnhancement.h"
+
+namespace vendor {
+namespace lineage {
+namespace livedisplay {
+namespace V2_0 {
+namespace implementation {
+
+static constexpr const char* kHbmStatusPath = "/sys/devices/platform/soc/soc:qcom,dsi-display/hbm";
+
+Return<bool> SunlightEnhancement::isEnabled() {
+    std::string buf;
+    if (!android::base::ReadFileToString(kHbmStatusPath, &buf)) {
+        LOG(ERROR) << "Failed to read " << kHbmStatusPath;
+        return false;
+    }
+    return std::stoi(android::base::Trim(buf)) == 1;
+}
+
+Return<bool> SunlightEnhancement::setEnabled(bool enabled) {
+    if (!android::base::WriteStringToFile((enabled ? "1" : "0"), kHbmStatusPath)) {
+        LOG(ERROR) << "Failed to write " << kHbmStatusPath;
+        return false;
+    }
+    return true;
+}
+
+}  // namespace implementation
+}  // namespace V2_0
+}  // namespace livedisplay
+}  // namespace lineage
+}  // namespace vendor

livedisplay/SunlightEnhancement.h

@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2019-2020 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::sp;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+
+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

livedisplay/service.cpp

@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2019-2020 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 "vendor.lineage.livedisplay@2.0-service.davinci"
+
+#include <android-base/logging.h>
+#include <binder/ProcessState.h>
+#include <hidl/HidlTransportSupport.h>
+
+#include "SunlightEnhancement.h"
+
+using ::vendor::lineage::livedisplay::V2_0::ISunlightEnhancement;
+using ::vendor::lineage::livedisplay::V2_0::implementation::SunlightEnhancement;
+
+int main() {
+    android::sp<ISunlightEnhancement> sunlightEnhancement = new SunlightEnhancement();
+
+    android::hardware::configureRpcThreadpool(1, true /*callerWillJoin*/);
+
+    if (sunlightEnhancement->registerAsService() != android::OK) {
+        LOG(ERROR) << "Cannot register sunlight enhancement HAL service.";
+        return 1;
+    }
+
+    LOG(INFO) << "LiveDisplay HAL service is ready.";
+
+    android::hardware::joinRpcThreadpool();
+
+    LOG(ERROR) << "LiveDisplay HAL service failed to join thread pool.";
+    return 1;
+}

livedisplay/vendor.lineage.livedisplay@2.0-service.davinci.rc

@@ -0,0 +1,8 @@
+on boot
+    chown system system /sys/devices/platform/soc/soc:qcom,dsi-display/hbm
+    chmod 0660 /sys/devices/platform/soc/soc:qcom,dsi-display/hbm
+
+service vendor.livedisplay-hal-2-0 /vendor/bin/hw/vendor.lineage.livedisplay@2.0-service.davinci
+    class hal
+    user system
+    group system

livedisplay/vendor.lineage.livedisplay@2.0-service.davinci.xml

@@ -0,0 +1,15 @@
+<manifest version="1.0" type="device">
+    <hal format="hidl">
+        <name>vendor.lineage.livedisplay</name>
+        <transport>hwbinder</transport>
+        <version>2.0</version>
+        <interface>
+            <name>IPictureAdjustment</name>
+            <instance>default</instance>
+        </interface>
+        <interface>
+            <name>ISunlightEnhancement</name>
+            <instance>default</instance>
+        </interface>
+    </hal>
+</manifest>

sepolicy/vendor/file_contexts

@@ -15,8 +15,12 @@
 # HALs
 /vendor/bin/hw/android\.hardware\.light@2\.0-service\.davinci        u:object_r:hal_light_default_exec:s0
 /vendor/bin/hw/vendor\.lineage\.biometrics\.fingerprint\.inscreen@1\.0-service\.davinci u:object_r:hal_lineage_fod_default_exec:s0
+/vendor/bin/hw/vendor\.lineage\.livedisplay@2\.0-service\.davinci    u:object_r:hal_lineage_livedisplay_qti_exec:s0
 /vendor/bin/hw/vendor\.xiaomi\.hardware\.motor@1\.0-service          u:object_r:hal_motor_default_exec:s0
 
+# HBM
+/sys/devices/platform/soc/soc:qcom,dsi-display/hbm                   u:object_r:sysfs_hbm:s0
+
 # Motor
 /dev/akm09970                                                        u:object_r:hall_device:s0
 /dev/drv8846_dev                                                     u:object_r:motor_device:s0

sepolicy/vendor/hal_lineage_livedisplay_qti.te

@@ -0,0 +1,3 @@
+type sysfs_hbm, sysfs_type, fs_type;
+
+allow hal_lineage_livedisplay_qti sysfs_hbm:file rw_file_perms;