sm6250-common: Update thermal HAL

* From hardware/google/pixel at d774cbb949e98627e4172bf8fc11e8d954599aa7.

Change-Id: I3a3a0c29575d0595e71a30f1e64e33ca34d2eb27

thermal/utils/power_files.h

@@ -0,0 +1,127 @@
+/*
+ * Copyright (C) 2021 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 <queue>
+#include <shared_mutex>
+#include <string>
+#include <unordered_map>
+#include <unordered_set>
+
+#include "config_parser.h"
+
+namespace android {
+namespace hardware {
+namespace thermal {
+namespace V2_0 {
+namespace implementation {
+
+struct PowerSample {
+    uint64_t energy_counter;
+    uint64_t duration;
+};
+
+struct ReleaseStatus {
+    int release_step;
+    int max_release_step;
+};
+
+struct PowerStatus {
+    std::chrono::milliseconds time_remaining;
+    // A vector to record the queues of power sample history.
+    std::vector<std::queue<PowerSample>> power_history;
+    float last_updated_avg_power;
+};
+
+using CdevReleaseStatus = std::unordered_map<std::string, ReleaseStatus>;
+using PowerStatusMap = std::unordered_map<std::string, PowerStatus>;
+
+// A helper class for monitoring power rails.
+class PowerFiles {
+  public:
+    PowerFiles() = default;
+    ~PowerFiles() = default;
+    // Disallow copy and assign.
+    PowerFiles(const PowerFiles &) = delete;
+    void operator=(const PowerFiles &) = delete;
+
+    // Register a map for the throttling release decision of target power rail
+    // Return false if the power_rail is not supported.
+    bool registerPowerRailsToWatch(std::string_view sensor_name, std::string_view cdev_name,
+                                   const BindedCdevInfo &binded_cdev_info,
+                                   const CdevInfo &cdev_info, const PowerRailInfo &power_rail_info);
+
+    // Find the energy source path, return false if no energy source found.
+    bool findEnergySourceToWatch(void);
+
+    // Clear the data of energy_info_map_.
+    void clearEnergyInfoMap(void);
+
+    // Update energy value to energy_info_map_, return false if the value is failed to update.
+    bool updateEnergyValues(void);
+
+    bool getAveragePower(std::string_view power_rail, std::queue<PowerSample> *power_history,
+                         bool power_sample_update, float *avg_power);
+    bool computeAveragePower(const PowerRailInfo &power_rail_info, PowerStatus *power_status,
+                             bool power_sample_update, float *avg_power);
+
+    // Update the throttling release status according to the average power, return true if power
+    // rail is updated.
+    bool throttlingReleaseUpdate(std::string_view sensor_name, std::string_view cdev_name,
+                                 const ThrottlingSeverity severity,
+                                 const std::chrono::milliseconds time_elapsed_ms,
+                                 const BindedCdevInfo &binded_cdev_info,
+                                 const PowerRailInfo &power_rail_info, bool power_sample_update,
+                                 bool severity_changed);
+
+    // Get the throttling release status for the targer power rail which is binded in specific
+    // sensor.
+    int getReleaseStep(std::string_view sensor_name, std::string_view cdev_name);
+
+    // Clear the data of throttling_release_map_.
+    void setPowerDataToDefault(std::string_view sensor_name);
+
+    // Get throttling release status map
+    const std::unordered_map<std::string, CdevReleaseStatus> &GetThrottlingReleaseMap() const {
+        std::shared_lock<std::shared_mutex> _lock(throttling_release_map_mutex_);
+        return throttling_release_map_;
+    }
+
+    // Get Power status map
+    const std::unordered_map<std::string, PowerStatusMap> &GetPowerStatusMap() const {
+        std::shared_lock<std::shared_mutex> _lock(power_status_map_mutex_);
+        return power_status_map_;
+    }
+
+  private:
+    // The map to record the energy info for each power rail.
+    std::unordered_map<std::string, PowerSample> energy_info_map_;
+    // The map to record the throttling release status for each thermal sensor.
+    std::unordered_map<std::string, CdevReleaseStatus> throttling_release_map_;
+    mutable std::shared_mutex throttling_release_map_mutex_;
+    // The map to record the power data for each thermal sensor.
+    std::unordered_map<std::string, PowerStatusMap> power_status_map_;
+    mutable std::shared_mutex power_status_map_mutex_;
+    // The set to store the energy source paths
+    std::unordered_set<std::string> energy_path_set_;
+};
+
+}  // namespace implementation
+}  // namespace V2_0
+}  // namespace thermal
+}  // namespace hardware
+}  // namespace android