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
17 #define LOG_TAG "powerhal-libperfmgr"
18
19 #include <android-base/logging.h>
20 #include <android-base/properties.h>
21 #include <android/binder_ibinder_platform.h>
22 #include <android/binder_manager.h>
23 #include <android/binder_process.h>
24 #include <perfmgr/HintManager.h>
25
26 #include <thread>
27
28 #include "Power.h"
29 #include "PowerExt.h"
30 #include "PowerSessionManager.h"
31 #include "disp-power/DisplayLowPower.h"
32
33 using aidl::google::hardware::power::impl::pixel::DisplayLowPower;
34 using aidl::google::hardware::power::impl::pixel::Power;
35 using aidl::google::hardware::power::impl::pixel::PowerExt;
36 using ::android::perfmgr::HintManager;
37
38 constexpr std::string_view kPowerHalInitProp("vendor.powerhal.init");
39
main()40 int main() {
41 android::base::SetDefaultTag(LOG_TAG);
42 // Parse config but do not start the looper
43 HintManager *hm = HintManager::GetInstance();
44 if (!hm) {
45 LOG(FATAL) << "HintManager Init failed";
46 }
47
48 std::shared_ptr<DisplayLowPower> dlpw = std::make_shared<DisplayLowPower>();
49
50 // single thread
51 ABinderProcess_setThreadPoolMaxThreadCount(0);
52
53 // core service
54 std::shared_ptr<Power> pw = ndk::SharedRefBase::make<Power>(dlpw);
55 ndk::SpAIBinder pwBinder = pw->asBinder();
56 AIBinder_setMinSchedulerPolicy(pwBinder.get(), SCHED_NORMAL, -20);
57
58 // extension service
59 std::shared_ptr<PowerExt> pwExt = ndk::SharedRefBase::make<PowerExt>(dlpw);
60 auto pwExtBinder = pwExt->asBinder();
61 AIBinder_setMinSchedulerPolicy(pwExtBinder.get(), SCHED_NORMAL, -20);
62
63 // attach the extension to the same binder we will be registering
64 CHECK(STATUS_OK == AIBinder_setExtension(pwBinder.get(), pwExt->asBinder().get()));
65
66 const std::string instance = std::string() + Power::descriptor + "/default";
67 binder_status_t status = AServiceManager_addService(pw->asBinder().get(), instance.c_str());
68 CHECK(status == STATUS_OK);
69 LOG(INFO) << "Pixel Power HAL AIDL Service with Extension is started.";
70
71 std::thread initThread([&]() {
72 ::android::base::WaitForProperty(kPowerHalInitProp.data(), "1");
73 HintManager::GetInstance()->Start();
74 dlpw->Init();
75 });
76 initThread.detach();
77
78 ABinderProcess_joinThreadPool();
79
80 // should not reach
81 LOG(ERROR) << "Pixel Power HAL AIDL Service with Extension just died.";
82 return EXIT_FAILURE;
83 }
84