1 /*
2  * Copyright (C) 2018 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 "[email protected]"
18 
19 #include <android/log.h>
20 #include <binder/IPCThreadState.h>
21 #include <binder/IServiceManager.h>
22 #include <binder/ProcessState.h>
23 #include <hidl/HidlTransportSupport.h>
24 
25 #include <pixelpowerstats/AidlStateResidencyDataProvider.h>
26 #include <pixelpowerstats/GenericStateResidencyDataProvider.h>
27 #include <pixelpowerstats/PowerStats.h>
28 #include <pixelpowerstats/WlanStateResidencyDataProvider.h>
29 
30 #include "RailDataProvider.h"
31 
32 using android::OK;
33 using android::sp;
34 using android::status_t;
35 
36 // libhwbinder:
37 using android::hardware::configureRpcThreadpool;
38 using android::hardware::joinRpcThreadpool;
39 
40 // Generated HIDL files
41 using android::hardware::power::stats::V1_0::IPowerStats;
42 using android::hardware::power::stats::V1_0::PowerEntityInfo;
43 using android::hardware::power::stats::V1_0::PowerEntityStateSpace;
44 using android::hardware::power::stats::V1_0::PowerEntityType;
45 using android::hardware::power::stats::V1_0::implementation::PowerStats;
46 
47 // Pixel specific
48 using android::hardware::google::pixel::powerstats::AidlStateResidencyDataProvider;
49 using android::hardware::google::pixel::powerstats::generateGenericStateResidencyConfigs;
50 using android::hardware::google::pixel::powerstats::GenericStateResidencyDataProvider;
51 using android::hardware::google::pixel::powerstats::PowerEntityConfig;
52 using android::hardware::google::pixel::powerstats::StateResidencyConfig;
53 using android::hardware::google::pixel::powerstats::RailDataProvider;
54 using android::hardware::google::pixel::powerstats::WlanStateResidencyDataProvider;
55 
main(int,char **)56 int main(int /* argc */, char ** /* argv */) {
57     ALOGE("power.stats service 1.0 is starting.");
58 
59 
60     PowerStats *service = new PowerStats();
61 
62     // Add rail data provider
63     service->setRailDataProvider(std::make_unique<RailDataProvider>());
64 
65     // Add power entities related to rpmh
66     const uint64_t RPM_CLK = 19200;  // RPM runs at 19.2Mhz. Divide by 19200 for msec
67     std::function<uint64_t(uint64_t)> rpmConvertToMs = [](uint64_t a) { return a / RPM_CLK; };
68     std::vector<StateResidencyConfig> rpmStateResidencyConfigs = {
69         {.name = "Sleep",
70          .entryCountSupported = true,
71          .entryCountPrefix = "Sleep Count:",
72          .totalTimeSupported = true,
73          .totalTimePrefix = "Sleep Accumulated Duration:",
74          .totalTimeTransform = rpmConvertToMs,
75          .lastEntrySupported = true,
76          .lastEntryPrefix = "Sleep Last Entered At:",
77          .lastEntryTransform = rpmConvertToMs}};
78 
79     sp<GenericStateResidencyDataProvider> rpmSdp =
80         new GenericStateResidencyDataProvider("/sys/power/rpmh_stats/master_stats");
81 
82     uint32_t apssId = service->addPowerEntity("APSS", PowerEntityType::SUBSYSTEM);
83     rpmSdp->addEntity(apssId, PowerEntityConfig("APSS", rpmStateResidencyConfigs));
84 
85     uint32_t mpssId = service->addPowerEntity("MPSS", PowerEntityType::SUBSYSTEM);
86     rpmSdp->addEntity(mpssId, PowerEntityConfig("MPSS", rpmStateResidencyConfigs));
87 
88     uint32_t adspId = service->addPowerEntity("ADSP", PowerEntityType::SUBSYSTEM);
89     rpmSdp->addEntity(adspId, PowerEntityConfig("ADSP", rpmStateResidencyConfigs));
90 
91     uint32_t cdspId = service->addPowerEntity("CDSP", PowerEntityType::SUBSYSTEM);
92     rpmSdp->addEntity(cdspId, PowerEntityConfig("CDSP", rpmStateResidencyConfigs));
93 
94     service->addStateResidencyDataProvider(rpmSdp);
95 
96     // Add SoC power entity
97     StateResidencyConfig socStateConfig = {
98         .entryCountSupported = true,
99         .entryCountPrefix = "count:",
100         .totalTimeSupported = true,
101         .totalTimePrefix = "actual last sleep(msec):",
102         .lastEntrySupported = false
103     };
104     std::vector<std::pair<std::string, std::string>> socStateHeaders = {
105         std::make_pair("AOSD", "RPM Mode:aosd"),
106         std::make_pair("CXSD", "RPM Mode:cxsd"),
107         std::make_pair("DDR", "RPM Mode:ddr"),
108     };
109 
110     sp<GenericStateResidencyDataProvider> socSdp =
111         new GenericStateResidencyDataProvider("/sys/power/system_sleep/stats");
112 
113     uint32_t socId = service->addPowerEntity("SoC", PowerEntityType::POWER_DOMAIN);
114     socSdp->addEntity(socId,
115         PowerEntityConfig(generateGenericStateResidencyConfigs(socStateConfig, socStateHeaders)));
116 
117     service->addStateResidencyDataProvider(socSdp);
118 
119     // Add WLAN power entity
120     uint32_t wlanId = service->addPowerEntity("WLAN", PowerEntityType::SUBSYSTEM);
121     sp<WlanStateResidencyDataProvider> wlanSdp =
122             new WlanStateResidencyDataProvider(wlanId, "/sys/kernel/wlan/power_stats");
123     service->addStateResidencyDataProvider(wlanSdp);
124 
125     // Add Power Entities that require the Aidl data provider
126     sp<AidlStateResidencyDataProvider> aidlSdp = new AidlStateResidencyDataProvider();
127     uint32_t citadelId = service->addPowerEntity("Citadel", PowerEntityType::SUBSYSTEM);
128     aidlSdp->addEntity(citadelId, "Citadel", {"Last-Reset", "Active", "Deep-Sleep"});
129 
130     auto serviceStatus = android::defaultServiceManager()->addService(
131         android::String16("power.stats-vendor"), aidlSdp);
132     if (serviceStatus != android::OK) {
133         ALOGE("Unable to register power.stats-vendor service %d", serviceStatus);
134         return 1;
135     }
136     sp<android::ProcessState> ps{android::ProcessState::self()};  // Create non-HW binder threadpool
137     ps->startThreadPool();
138 
139     service->addStateResidencyDataProvider(aidlSdp);
140 
141     // Configure the threadpool
142     configureRpcThreadpool(1, true /*callerWillJoin*/);
143 
144     status_t status = service->registerAsService();
145     if (status != OK) {
146         ALOGE("Could not register service for power.stats HAL Iface (%d), exiting.", status);
147         return 1;
148     }
149 
150     ALOGI("power.stats service is ready");
151     joinRpcThreadpool();
152 
153     // In normal operation, we don't expect the thread pool to exit
154     ALOGE("power.stats service is shutting down");
155     return 1;
156 }
157