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 <thread>
20
21 #include <android-base/logging.h>
22 #include <android-base/properties.h>
23 #include <android/binder_manager.h>
24 #include <android/binder_process.h>
25
26 #include "Power.h"
27 #include "PowerExt.h"
28 #include "PowerSessionManager.h"
29 #include "disp-power/DisplayLowPower.h"
30
31 using aidl::google::hardware::power::impl::pixel::DisplayLowPower;
32 using aidl::google::hardware::power::impl::pixel::Power;
33 using aidl::google::hardware::power::impl::pixel::PowerExt;
34 using aidl::google::hardware::power::impl::pixel::PowerHintMonitor;
35 using aidl::google::hardware::power::impl::pixel::PowerSessionManager;
36 using ::android::perfmgr::HintManager;
37
38 constexpr std::string_view kPowerHalInitProp("vendor.powerhal.init");
39 constexpr std::string_view kConfigProperty("vendor.powerhal.config");
40 constexpr std::string_view kConfigDefaultFileName("powerhint.json");
41
main()42 int main() {
43 const std::string config_path =
44 "/vendor/etc/" +
45 android::base::GetProperty(kConfigProperty.data(), kConfigDefaultFileName.data());
46 LOG(INFO) << "Pixel Power HAL AIDL Service with Extension is starting with config: "
47 << config_path;
48
49 // Parse config but do not start the looper
50 std::shared_ptr<HintManager> hm = HintManager::GetFromJSON(config_path, false);
51 if (!hm) {
52 LOG(FATAL) << "Invalid config: " << config_path;
53 }
54
55 std::shared_ptr<DisplayLowPower> dlpw = std::make_shared<DisplayLowPower>();
56
57 // single thread
58 ABinderProcess_setThreadPoolMaxThreadCount(0);
59
60 // core service
61 std::shared_ptr<Power> pw = ndk::SharedRefBase::make<Power>(hm, dlpw);
62 ndk::SpAIBinder pwBinder = pw->asBinder();
63
64 // extension service
65 std::shared_ptr<PowerExt> pwExt = ndk::SharedRefBase::make<PowerExt>(hm, dlpw);
66
67 // attach the extension to the same binder we will be registering
68 CHECK(STATUS_OK == AIBinder_setExtension(pwBinder.get(), pwExt->asBinder().get()));
69
70 const std::string instance = std::string() + Power::descriptor + "/default";
71 binder_status_t status = AServiceManager_addService(pw->asBinder().get(), instance.c_str());
72 CHECK(status == STATUS_OK);
73 LOG(INFO) << "Pixel Power HAL AIDL Service with Extension is started.";
74
75 if (::android::base::GetIntProperty("vendor.powerhal.adpf.rate", -1) != -1) {
76 PowerHintMonitor::getInstance()->start();
77 PowerSessionManager::getInstance()->setHintManager(hm);
78 }
79
80 std::thread initThread([&]() {
81 ::android::base::WaitForProperty(kPowerHalInitProp.data(), "1");
82 hm->Start();
83 dlpw->Init();
84 });
85 initThread.detach();
86
87 ABinderProcess_joinThreadPool();
88
89 // should not reach
90 LOG(ERROR) << "Pixel Power HAL AIDL Service with Extension just died.";
91 return EXIT_FAILURE;
92 }
93