Shawn McCarney | 03a25f1 | 2021-04-24 17:02:04 -0500 | [diff] [blame] | 1 | /** |
| 2 | * Copyright © 2021 IBM Corporation |
| 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 | #include "dbus_sensors.hpp" |
| 18 | |
| 19 | #include <utility> |
| 20 | |
| 21 | namespace phosphor::power::regulators |
| 22 | { |
| 23 | |
Shawn McCarney | c9c6951 | 2021-04-27 18:00:05 -0500 | [diff] [blame] | 24 | void DBusSensors::enable() |
Shawn McCarney | 03a25f1 | 2021-04-24 17:02:04 -0500 | [diff] [blame] | 25 | { |
| 26 | // Currently nothing to do here. The next monitoring cycle will set the |
| 27 | // values of all sensors, and that will set them to the enabled state. |
| 28 | } |
| 29 | |
Shawn McCarney | c9c6951 | 2021-04-27 18:00:05 -0500 | [diff] [blame] | 30 | void DBusSensors::endCycle() |
Shawn McCarney | 03a25f1 | 2021-04-24 17:02:04 -0500 | [diff] [blame] | 31 | { |
| 32 | // Delete any sensors that were not updated during this monitoring cycle. |
| 33 | // This can happen if the hardware device producing the sensors was removed |
| 34 | // or replaced with a different version. |
| 35 | auto it = sensors.begin(); |
| 36 | while (it != sensors.end()) |
| 37 | { |
| 38 | // Increment iterator before potentially deleting the sensor. |
| 39 | // map::erase() invalidates iterators/references to the erased element. |
| 40 | auto& [sensorName, sensor] = *it; |
| 41 | ++it; |
| 42 | |
| 43 | // Check if last update time for sensor is before cycle start time |
| 44 | if (sensor->getLastUpdateTime() < cycleStartTime) |
| 45 | { |
Shawn McCarney | 03a25f1 | 2021-04-24 17:02:04 -0500 | [diff] [blame] | 46 | sensors.erase(sensorName); |
| 47 | } |
| 48 | } |
| 49 | } |
| 50 | |
Shawn McCarney | c9c6951 | 2021-04-27 18:00:05 -0500 | [diff] [blame] | 51 | void DBusSensors::endRail(bool errorOccurred) |
Shawn McCarney | 03a25f1 | 2021-04-24 17:02:04 -0500 | [diff] [blame] | 52 | { |
| 53 | // If an error occurred, set all sensors for current rail to the error state |
| 54 | if (errorOccurred) |
| 55 | { |
| 56 | for (auto& [sensorName, sensor] : sensors) |
| 57 | { |
| 58 | if (sensor->getRail() == rail) |
| 59 | { |
| 60 | sensor->setToErrorState(); |
| 61 | } |
| 62 | } |
| 63 | } |
| 64 | |
| 65 | // Clear current rail information |
| 66 | rail.clear(); |
| 67 | deviceInventoryPath.clear(); |
| 68 | chassisInventoryPath.clear(); |
| 69 | } |
| 70 | |
Shawn McCarney | c9c6951 | 2021-04-27 18:00:05 -0500 | [diff] [blame] | 71 | void DBusSensors::disable() |
Shawn McCarney | 03a25f1 | 2021-04-24 17:02:04 -0500 | [diff] [blame] | 72 | { |
| 73 | // Disable all sensors |
| 74 | for (auto& [sensorName, sensor] : sensors) |
| 75 | { |
| 76 | sensor->disable(); |
| 77 | } |
| 78 | } |
| 79 | |
Shawn McCarney | c9c6951 | 2021-04-27 18:00:05 -0500 | [diff] [blame] | 80 | void DBusSensors::setValue(SensorType type, double value) |
Shawn McCarney | 03a25f1 | 2021-04-24 17:02:04 -0500 | [diff] [blame] | 81 | { |
| 82 | // Build unique sensor name based on rail and sensor type |
| 83 | std::string sensorName{rail + '_' + sensors::toString(type)}; |
| 84 | |
| 85 | // Check to see if the sensor already exists |
| 86 | auto it = sensors.find(sensorName); |
| 87 | if (it != sensors.end()) |
| 88 | { |
| 89 | // Sensor exists; update value |
| 90 | it->second->setValue(value); |
| 91 | } |
| 92 | else |
| 93 | { |
| 94 | // Sensor doesn't exist; create it and add it to the map |
| 95 | auto sensor = std::make_unique<DBusSensor>(bus, sensorName, type, value, |
| 96 | rail, deviceInventoryPath, |
| 97 | chassisInventoryPath); |
| 98 | sensors.emplace(sensorName, std::move(sensor)); |
Shawn McCarney | 03a25f1 | 2021-04-24 17:02:04 -0500 | [diff] [blame] | 99 | } |
| 100 | } |
| 101 | |
Shawn McCarney | c9c6951 | 2021-04-27 18:00:05 -0500 | [diff] [blame] | 102 | void DBusSensors::startCycle() |
Shawn McCarney | 03a25f1 | 2021-04-24 17:02:04 -0500 | [diff] [blame] | 103 | { |
| 104 | // Store the time when this monitoring cycle started. This is used to |
| 105 | // detect sensors that were not updated during this cycle. |
| 106 | cycleStartTime = std::chrono::system_clock::now(); |
| 107 | } |
| 108 | |
| 109 | void DBusSensors::startRail(const std::string& rail, |
| 110 | const std::string& deviceInventoryPath, |
Shawn McCarney | c9c6951 | 2021-04-27 18:00:05 -0500 | [diff] [blame] | 111 | const std::string& chassisInventoryPath) |
Shawn McCarney | 03a25f1 | 2021-04-24 17:02:04 -0500 | [diff] [blame] | 112 | { |
| 113 | // Store current rail information; used later by setValue() and endRail() |
| 114 | this->rail = rail; |
| 115 | this->deviceInventoryPath = deviceInventoryPath; |
| 116 | this->chassisInventoryPath = chassisInventoryPath; |
| 117 | } |
| 118 | |
| 119 | } // namespace phosphor::power::regulators |