1 /*
2 * Copyright (C) 2020 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 #include <unistd.h>
17
18 #include <android-base/logging.h>
19 #include <android/binder_process.h>
20 #include <hidl/HidlTransportSupport.h>
21 #include <utils/Errors.h>
22 #include <utils/Looper.h>
23 #include <utils/StrongPointer.h>
24
25 #include "AudioControl.h"
26 #include "WatchdogClient.h"
27 #include "vsockinfo.h"
28
29 // libhidl:
30 using android::hardware::configureRpcThreadpool;
31 using android::hardware::joinRpcThreadpool;
32
33 // Generated HIDL files
34 using android::hardware::automotive::audiocontrol::V2_0::IAudioControl;
35
36 using android::Looper;
37 using android::OK;
38 using android::hardware::automotive::audiocontrol::V2_0::implementation::AudioControl;
39 using android::hardware::automotive::audiocontrol::V2_0::implementation::WatchdogClient;
40 using android::hardware::automotive::utils::VsockConnectionInfo;
41
42 // Main service entry point
main()43 int main() {
44 const auto si = VsockConnectionInfo::fromRoPropertyStore(
45 {
46 "ro.boot.vendor.audiocontrol.server.cid",
47 "ro.vendor.audiocontrol.server.cid",
48 },
49 {
50 "ro.boot.vendor.audiocontrol.server.port",
51 "ro.vendor.audiocontrol.server.port",
52 });
53
54 if (!si) {
55 LOG(ERROR) << "failed to get server connection cid/port; audio control server disabled.";
56 } else {
57 LOG(INFO) << "Creating audio control server at " << si->str();
58 }
59
60 // Create an instance of our service class
61 android::sp<AudioControl> service = new AudioControl(si ? si->str() : "");
62 configureRpcThreadpool(4, false /*callerWillJoin*/);
63
64 if (service->registerAsService() != OK) {
65 LOG(ERROR) << "registerAsService failed";
66 return 1;
67 }
68
69 // Start audio control server
70 service->ServerStart();
71
72 // Setup a binder thread pool to be a car watchdog client.
73 ABinderProcess_setThreadPoolMaxThreadCount(1);
74 ABinderProcess_startThreadPool();
75 android::sp<Looper> looper(Looper::prepare(0 /* opts */));
76 std::shared_ptr<WatchdogClient> watchdogClient =
77 ndk::SharedRefBase::make<WatchdogClient>(looper, service.get());
78 if (!watchdogClient->initialize()) {
79 ALOGE("Failed to initialize car watchdog client");
80 return 1;
81 }
82
83 while (true) {
84 looper->pollAll(-1 /* timeoutMillis */);
85 }
86 service->ServerJoin();
87
88 // We don't ever actually expect to return, so return an error if we do get here
89 return 2;
90 }
91