1 /*
2 * Copyright (C) 2021 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 "android.hardware.power.stats-service.pixel"
18
19 #include <dataproviders/DisplayStateResidencyDataProvider.h>
20 #include <dataproviders/PowerStatsEnergyConsumer.h>
21 #include <ZumaCommonDataProviders.h>
22 #include <PowerStatsAidl.h>
23
24 #include <android-base/logging.h>
25 #include <android-base/properties.h>
26 #include <android/binder_manager.h>
27 #include <android/binder_process.h>
28 #include <log/log.h>
29 #include <sys/stat.h>
30
31 using aidl::android::hardware::power::stats::DisplayStateResidencyDataProvider;
32 using aidl::android::hardware::power::stats::EnergyConsumerType;
33 using aidl::android::hardware::power::stats::PowerStatsEnergyConsumer;
34
addDisplay(std::shared_ptr<PowerStats> p)35 void addDisplay(std::shared_ptr<PowerStats> p) {
36 // Add display residency stats
37 struct stat buffer;
38 if (stat("/sys/class/drm/card0/device/primary-panel/time_in_state", &buffer)) {
39 // time_in_state doesn't exist
40 std::vector<std::string> states = {
41 "Off",
42 "LP: 1080x2400@30",
43 "On: 1080x2400@60",
44 "On: 1080x2400@120",
45 "HBM: 1080x2400@60",
46 "HBM: 1080x2400@120"};
47
48 p->addStateResidencyDataProvider(std::make_unique<DisplayStateResidencyDataProvider>(
49 "Display",
50 "/sys/class/backlight/panel0-backlight/state",
51 states));
52 } else {
53 // time_in_state exists
54 addDisplayMRR(p);
55 }
56
57 // Add display energy consumer
58 p->addEnergyConsumer(PowerStatsEnergyConsumer::createMeterConsumer(
59 p,
60 EnergyConsumerType::DISPLAY,
61 "DISPLAY",
62 {"VSYS_PWR_DISPLAY"}));
63 }
64
main()65 int main() {
66 LOG(INFO) << "Pixel PowerStats HAL AIDL Service is starting.";
67
68 // single thread
69 ABinderProcess_setThreadPoolMaxThreadCount(0);
70
71 std::shared_ptr<PowerStats> p = ndk::SharedRefBase::make<PowerStats>();
72
73 addZumaCommonDataProviders(p);
74 addDisplay(p);
75
76 const std::string instance = std::string() + PowerStats::descriptor + "/default";
77 binder_status_t status = AServiceManager_addService(p->asBinder().get(), instance.c_str());
78 LOG_ALWAYS_FATAL_IF(status != STATUS_OK);
79
80 ABinderProcess_joinThreadPool();
81 return EXIT_FAILURE; // should not reach
82 }
83