sdm845-common: Add and build trust HAL

Change-Id: I6ffdcd0cae2afb1b1e872152f7997da704ad74dc

trust/service.cpp

@@ -0,0 +1,64 @@
+/*
+ * 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 "vendor.lineage.trust@1.0-service"
+
+#include <android-base/logging.h>
+#include <binder/ProcessState.h>
+#include <hidl/HidlTransportSupport.h>
+
+#include "UsbRestrict.h"
+
+using android::OK;
+using android::sp;
+using android::status_t;
+
+// libhwbinder:
+using android::hardware::configureRpcThreadpool;
+using android::hardware::joinRpcThreadpool;
+
+using ::vendor::lineage::trust::V1_0::IUsbRestrict;
+using ::vendor::lineage::trust::V1_0::implementation::UsbRestrict;
+
+int main() {
+    sp<IUsbRestrict> usbRestrict;
+    status_t status;
+
+    LOG(INFO) << "Trust HAL service is starting.";
+
+    usbRestrict = new UsbRestrict();
+    if (usbRestrict == nullptr) {
+        LOG(ERROR) << "Can not create an instance of Trust HAL UsbRestricted Iface, exiting.";
+        goto shutdown;
+    }
+
+    configureRpcThreadpool(1, true /*callerWillJoin*/);
+
+    status = usbRestrict->registerAsService();
+    if (status != OK) {
+        LOG(ERROR) << "Could not register service for Trust HAL UsbRestricted Iface (" << status
+                   << ").";
+    }
+
+    LOG(INFO) << "Trust 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) << "Trust HAL service is shutting down.";
+    return 1;
+}