Bookatz | 92da283 | 2018-11-01 18:10:03 -0700 | [diff] [blame] | 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 DEBUG false // STOPSHIP if true |
| 18 | #include "Log.h" |
| 19 | |
| 20 | #include <android/hardware/power/stats/1.0/IPowerStats.h> |
| 21 | |
| 22 | #include <vector> |
| 23 | |
| 24 | #include "PowerStatsPuller.h" |
Muhammad Qureshi | c8e2266 | 2019-11-20 17:18:03 -0800 | [diff] [blame] | 25 | #include "statslog.h" |
Bookatz | 92da283 | 2018-11-01 18:10:03 -0700 | [diff] [blame] | 26 | #include "stats_log_util.h" |
| 27 | |
| 28 | using android::hardware::hidl_vec; |
| 29 | using android::hardware::power::stats::V1_0::IPowerStats; |
| 30 | using android::hardware::power::stats::V1_0::EnergyData; |
| 31 | using android::hardware::power::stats::V1_0::RailInfo; |
| 32 | using android::hardware::power::stats::V1_0::Status; |
| 33 | using android::hardware::Return; |
| 34 | using android::hardware::Void; |
| 35 | |
| 36 | using std::make_shared; |
| 37 | using std::shared_ptr; |
| 38 | |
| 39 | namespace android { |
| 40 | namespace os { |
| 41 | namespace statsd { |
| 42 | |
Benjamin Schwartz | b7e22e2 | 2019-02-25 15:18:55 -0800 | [diff] [blame] | 43 | static sp<android::hardware::power::stats::V1_0::IPowerStats> gPowerStatsHal = nullptr; |
| 44 | static std::mutex gPowerStatsHalMutex; |
| 45 | static bool gPowerStatsExist = true; // Initialized to ensure making a first attempt. |
| 46 | static std::vector<RailInfo> gRailInfo; |
Bookatz | 92da283 | 2018-11-01 18:10:03 -0700 | [diff] [blame] | 47 | |
Benjamin Schwartz | b7e22e2 | 2019-02-25 15:18:55 -0800 | [diff] [blame] | 48 | struct PowerStatsPullerDeathRecipient : virtual public hardware::hidl_death_recipient { |
| 49 | virtual void serviceDied(uint64_t cookie, |
| 50 | const wp<android::hidl::base::V1_0::IBase>& who) override { |
| 51 | // The HAL just died. Reset all handles to HAL services. |
| 52 | std::lock_guard<std::mutex> lock(gPowerStatsHalMutex); |
| 53 | gPowerStatsHal = nullptr; |
| 54 | } |
| 55 | }; |
| 56 | |
| 57 | static sp<PowerStatsPullerDeathRecipient> gDeathRecipient = new PowerStatsPullerDeathRecipient(); |
| 58 | |
| 59 | static bool getPowerStatsHalLocked() { |
Bookatz | 92da283 | 2018-11-01 18:10:03 -0700 | [diff] [blame] | 60 | if (gPowerStatsHal == nullptr && gPowerStatsExist) { |
| 61 | gPowerStatsHal = android::hardware::power::stats::V1_0::IPowerStats::getService(); |
| 62 | if (gPowerStatsHal == nullptr) { |
| 63 | ALOGW("Couldn't load power.stats HAL service"); |
| 64 | gPowerStatsExist = false; |
Benjamin Schwartz | b7e22e2 | 2019-02-25 15:18:55 -0800 | [diff] [blame] | 65 | } else { |
| 66 | // Link death recipient to power.stats service handle |
| 67 | hardware::Return<bool> linked = gPowerStatsHal->linkToDeath(gDeathRecipient, 0); |
| 68 | if (!linked.isOk()) { |
| 69 | ALOGE("Transaction error in linking to power.stats HAL death: %s", |
| 70 | linked.description().c_str()); |
| 71 | gPowerStatsHal = nullptr; |
| 72 | return false; |
| 73 | } else if (!linked) { |
| 74 | ALOGW("Unable to link to power.stats HAL death notifications"); |
| 75 | // We should still continue even though linking failed |
| 76 | } |
Bookatz | 92da283 | 2018-11-01 18:10:03 -0700 | [diff] [blame] | 77 | } |
| 78 | } |
| 79 | return gPowerStatsHal != nullptr; |
| 80 | } |
| 81 | |
| 82 | PowerStatsPuller::PowerStatsPuller() : StatsPuller(android::util::ON_DEVICE_POWER_MEASUREMENT) { |
| 83 | } |
| 84 | |
| 85 | bool PowerStatsPuller::PullInternal(vector<shared_ptr<LogEvent>>* data) { |
| 86 | std::lock_guard<std::mutex> lock(gPowerStatsHalMutex); |
| 87 | |
Benjamin Schwartz | b7e22e2 | 2019-02-25 15:18:55 -0800 | [diff] [blame] | 88 | if (!getPowerStatsHalLocked()) { |
Bookatz | 92da283 | 2018-11-01 18:10:03 -0700 | [diff] [blame] | 89 | return false; |
| 90 | } |
| 91 | |
| 92 | int64_t wallClockTimestampNs = getWallClockNs(); |
| 93 | int64_t elapsedTimestampNs = getElapsedRealtimeNs(); |
| 94 | |
| 95 | data->clear(); |
| 96 | |
| 97 | // Pull getRailInfo if necessary |
| 98 | if (gRailInfo.empty()) { |
| 99 | bool resultSuccess = true; |
| 100 | Return<void> ret = gPowerStatsHal->getRailInfo( |
| 101 | [&resultSuccess](const hidl_vec<RailInfo> &list, Status status) { |
| 102 | resultSuccess = (status == Status::SUCCESS || status == Status::NOT_SUPPORTED); |
| 103 | if (status != Status::SUCCESS) return; |
| 104 | |
| 105 | gRailInfo.reserve(list.size()); |
| 106 | for (size_t i = 0; i < list.size(); ++i) { |
| 107 | gRailInfo.push_back(list[i]); |
| 108 | } |
| 109 | }); |
| 110 | if (!resultSuccess || !ret.isOk()) { |
| 111 | ALOGE("power.stats getRailInfo() failed. Description: %s", ret.description().c_str()); |
| 112 | gPowerStatsHal = nullptr; |
| 113 | return false; |
| 114 | } |
| 115 | // If SUCCESS but empty, or if NOT_SUPPORTED, then never try again. |
| 116 | if (gRailInfo.empty()) { |
| 117 | ALOGE("power.stats has no rail information"); |
| 118 | gPowerStatsExist = false; // No rail info, so never try again. |
Benjamin Schwartz | c0bb3fe | 2019-05-28 17:09:44 -0700 | [diff] [blame] | 119 | gPowerStatsHal = nullptr; |
Bookatz | 92da283 | 2018-11-01 18:10:03 -0700 | [diff] [blame] | 120 | return false; |
| 121 | } |
| 122 | } |
| 123 | |
| 124 | // Pull getEnergyData and write the data out |
| 125 | const hidl_vec<uint32_t> desiredRailIndices; // Empty vector indicates we want all. |
| 126 | bool resultSuccess = true; |
| 127 | Return<void> ret = gPowerStatsHal->getEnergyData(desiredRailIndices, |
| 128 | [&data, wallClockTimestampNs, elapsedTimestampNs, &resultSuccess] |
| 129 | (hidl_vec<EnergyData> energyDataList, Status status) { |
| 130 | resultSuccess = (status == Status::SUCCESS); |
| 131 | if (!resultSuccess) return; |
| 132 | |
| 133 | for (size_t i = 0; i < energyDataList.size(); i++) { |
| 134 | const EnergyData& energyData = energyDataList[i]; |
| 135 | |
| 136 | if (energyData.index >= gRailInfo.size()) { |
| 137 | ALOGE("power.stats getEnergyData() returned an invalid rail index %u.", |
| 138 | energyData.index); |
| 139 | resultSuccess = false; |
| 140 | return; |
| 141 | } |
| 142 | const RailInfo& rail = gRailInfo[energyData.index]; |
| 143 | |
| 144 | auto ptr = make_shared<LogEvent>(android::util::ON_DEVICE_POWER_MEASUREMENT, |
| 145 | wallClockTimestampNs, elapsedTimestampNs); |
| 146 | ptr->write(rail.subsysName); |
| 147 | ptr->write(rail.railName); |
| 148 | ptr->write(energyData.timestamp); |
| 149 | ptr->write(energyData.energy); |
| 150 | ptr->init(); |
| 151 | data->push_back(ptr); |
| 152 | |
| 153 | VLOG("power.stat: %s.%s: %llu, %llu", |
| 154 | rail.subsysName.c_str(), |
| 155 | rail.railName.c_str(), |
| 156 | (unsigned long long)energyData.timestamp, |
| 157 | (unsigned long long)energyData.energy); |
| 158 | } |
| 159 | }); |
| 160 | if (!resultSuccess || !ret.isOk()) { |
| 161 | ALOGE("power.stats getEnergyData() failed. Description: %s", ret.description().c_str()); |
| 162 | gPowerStatsHal = nullptr; |
| 163 | return false; |
| 164 | } |
| 165 | return true; |
| 166 | } |
| 167 | |
| 168 | } // namespace statsd |
| 169 | } // namespace os |
| 170 | } // namespace android |