powerstats: introduce AdaptiveDvfsStateResidency data provider

This is a new data provider to get state residency from fvp_stats,
which is similar with DVFS data provider. But the difference is that
CPU frequency table is read from cpufreq sysfs and not predefined in
the config.

Bug: 272642210
Bug: 267638537
Test: dumpsys android.hardware.power.stats.IPowerStats/default
Change-Id: I22451b55dee5dfb0a1b36497533c2063984d5483
Signed-off-by: Darren Hsu <darrenhsu@google.com>

powerstats/include/AdaptiveDvfsStateResidencyDataProvider.h

@@ -0,0 +1,57 @@
+/*
+ * 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 "DvfsStateResidencyDataProvider.h"
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace power {
+namespace stats {
+
+class AdaptiveDvfsStateResidencyDataProvider : public DvfsStateResidencyDataProvider {
+  public:
+    /*
+     * path - path to dvfs sysfs node.
+     * clockRate - clock rate in KHz.
+     * powerEntityName - power entity name to parse.
+     * freqPath - path to frequency table.
+     */
+    AdaptiveDvfsStateResidencyDataProvider(
+        std::string path,
+        uint64_t clockRate,
+        std::string powerEntityName,
+        std::string freqPath);
+    ~AdaptiveDvfsStateResidencyDataProvider() = 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;
+};
+
+}  // namespace stats
+}  // namespace power
+}  // namespace hardware
+}  // namespace android
+}  // namespace aidl