Merge "powerstats: introduce display MRR state residency data provider" into main
diff --git a/powerstats/DisplayMrrStateResidencyDataProvider.cpp b/powerstats/DisplayMrrStateResidencyDataProvider.cpp
new file mode 100644
index 0000000..8ab9af4
--- /dev/null
+++ b/powerstats/DisplayMrrStateResidencyDataProvider.cpp
@@ -0,0 +1,169 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include "DisplayMrrStateResidencyDataProvider.h"
+
+#include <android-base/logging.h>
+#include <android-base/parseint.h>
+#include <android-base/strings.h>
+
+using android::base::ParseInt;
+using android::base::ParseUint;
+using android::base::Split;
+using android::base::Trim;
+
+static const std::string TIME_IN_STATE = "time_in_state";
+static const std::string AVAILABLE_STATE = "available_disp_stats";
+static const std::vector<std::string> DISP_STATE = { "On", "HBM", "LP", "Off" };
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace power {
+namespace stats {
+
+DisplayMrrStateResidencyDataProvider::DisplayMrrStateResidencyDataProvider(
+ const std::string& name, const std::string& path) : mName(name), mPath(path) {
+ mConfigs = std::vector<Config>();
+ std::string statePath = mPath + AVAILABLE_STATE;
+ std::unique_ptr<FILE, decltype(&fclose)> fp(fopen(statePath.c_str(), "r"), fclose);
+ if (fp) {
+ char *line = nullptr;
+ size_t len = 0;
+ Config config = { .state = 0, .resX = 0, .resY = 0, .rr = 0 };
+ while (getline(&line, &len, fp.get()) != -1) {
+ if (parseAvailableState(line, &config)) {
+ mConfigs.push_back(config);
+ } else {
+ PLOG(ERROR) << "Failed to parse display config for [" << std::string(line)
+ << "] from " << statePath;
+ mConfigs.clear();
+ break;
+ }
+ }
+ free(line);
+ } else {
+ PLOG(ERROR) << "Failed to open file " << statePath;
+ }
+}
+
+bool DisplayMrrStateResidencyDataProvider::parseConfig(
+ char const *line, Config *config, uint64_t *duration) {
+ std::vector<std::string> parts = Split(line, " ");
+
+ if (duration == nullptr) {
+ if (parts.size() != 4) return false;
+ } else {
+ if (parts.size() != 5) return false;
+
+ if (!ParseUint(Trim(parts[4]), duration)) return false;
+ }
+
+ if (!ParseInt(Trim(parts[0]), &config->state)) return false;
+ if (!ParseInt(Trim(parts[1]), &config->resX)) return false;
+ if (!ParseInt(Trim(parts[2]), &config->resY)) return false;
+ if (!ParseInt(Trim(parts[3]), &config->rr)) return false;
+
+ return true;
+}
+
+bool DisplayMrrStateResidencyDataProvider::parseAvailableState(
+ char const *line, Config *config) {
+ return parseConfig(line, config, nullptr);
+}
+
+bool DisplayMrrStateResidencyDataProvider::parseTimeInState(
+ char const *line, Config *config, uint64_t *duration) {
+ return parseConfig(line, config, duration);
+}
+
+bool DisplayMrrStateResidencyDataProvider::getStateResidencies(
+ std::unordered_map<std::string, std::vector<StateResidency>> *residencies) {
+ if (mConfigs.empty()) {
+ LOG(ERROR) << "Display MRR state list is empty!";
+ return false;
+ }
+
+ std::string path = mPath + TIME_IN_STATE;
+ std::unique_ptr<FILE, decltype(&fclose)> fp(fopen(path.c_str(), "r"), fclose);
+ if (!fp) {
+ PLOG(ERROR) << "Failed to open file " << path;
+ return false;
+ }
+
+ std::vector<StateResidency> stateResidencies;
+ for (int i = 0; i < mConfigs.size(); i++) {
+ StateResidency s = {.id = i, .totalTimeInStateMs = 0};
+ stateResidencies.push_back(s);
+ }
+
+ char *line = nullptr;
+ size_t len = 0;
+ Config config = { .state = 0, .resX = 0, .resY = 0, .rr = 0 };
+ uint64_t duration;
+ std::vector<Config>::const_iterator found;
+ while (getline(&line, &len, fp.get()) != -1) {
+ if (parseTimeInState(line, &config, &duration)) {
+ found = std::find(mConfigs.begin(), mConfigs.end(), config);
+ if (found != mConfigs.end()) {
+ stateResidencies[found - mConfigs.begin()].totalTimeInStateMs = duration;
+ } else {
+ LOG(ERROR) << "Failed to find config for [" << std::string(line)
+ << "] in display MRR state list";
+ }
+ } else {
+ LOG(ERROR) << "Failed to parse state and duration from [" << std::string(line) << "]";
+ free(line);
+ return false;
+ }
+ }
+
+ residencies->emplace(mName, stateResidencies);
+
+ free(line);
+
+ return true;
+}
+
+std::unordered_map<std::string, std::vector<State>> DisplayMrrStateResidencyDataProvider::getInfo()
+{
+ int32_t dispId;
+ std::string name;
+ std::vector<State> states;
+ for (int32_t id = 0; id < mConfigs.size(); id++) {
+ dispId = mConfigs[id].state;
+ if (dispId >= DISP_STATE.size()) {
+ LOG(ERROR) << "Display state id " << dispId << " is out of bound";
+ return {};
+ }
+
+ name = DISP_STATE[dispId];
+ if (dispId != DISP_STATE.size() - 1) {
+ name += ": " + std::to_string(mConfigs[id].resX) +
+ "x" + std::to_string(mConfigs[id].resY) +
+ "@" + std::to_string(mConfigs[id].rr);
+ }
+ State s = { .id = id, .name = name };
+ states.push_back(s);
+ }
+
+ return {{ mName, states }};
+}
+
+} // namespace stats
+} // namespace power
+} // namespace hardware
+} // namespace android
+} // namespace aidl
diff --git a/powerstats/include/DisplayMrrStateResidencyDataProvider.h b/powerstats/include/DisplayMrrStateResidencyDataProvider.h
new file mode 100644
index 0000000..81ea17e
--- /dev/null
+++ b/powerstats/include/DisplayMrrStateResidencyDataProvider.h
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#pragma once
+
+#include <PowerStatsAidl.h>
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace power {
+namespace stats {
+
+class DisplayMrrStateResidencyDataProvider : public PowerStats::IStateResidencyDataProvider {
+ public:
+ DisplayMrrStateResidencyDataProvider(const std::string& name, const std::string& path);
+ ~DisplayMrrStateResidencyDataProvider() = default;
+
+ /*
+ * See IStateResidencyDataProvider::getStateResidencies
+ */
+ bool getStateResidencies(
+ std::unordered_map<std::string, std::vector<StateResidency>> *residencies) override;
+
+ /*
+ * See IStateResidencyDataProvider::getInfo
+ */
+ std::unordered_map<std::string, std::vector<State>> getInfo() override;
+
+ private:
+ struct Config {
+ int32_t state; // Display state (On, HBM, LP, Off)
+ int32_t resX; // Resolution X
+ int32_t resY; // Resolution Y
+ int32_t rr; // Refresh rate
+
+ bool operator==(const Config& r) const {
+ return state == r.state && resX == r.resX && resY == r.resY && rr == r.rr;
+ }
+ };
+
+ bool parseConfig(char const *line, Config *config, uint64_t *duration);
+ bool parseAvailableState(char const *line, Config *config);
+ bool parseTimeInState(char const *line, Config *config, uint64_t *duration);
+ bool loadAvailableState();
+
+ const std::string mName;
+ const std::string mPath;
+ std::vector<Config> mConfigs;
+};
+
+} // namespace stats
+} // namespace power
+} // namespace hardware
+} // namespace android
+} // namespace aidl