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 "vpd.hpp" 18 19 #include "types.hpp" 20 #include "utility.hpp" 21 22 namespace phosphor::power::regulators 23 { 24 25 std::vector<uint8_t> DBusVPD::getValue(const std::string& inventoryPath, 26 const std::string& keyword) 27 { 28 std::vector<uint8_t> value{}; 29 30 // Get cached keywords for the inventory path 31 KeywordMap& cachedKeywords = cache[inventoryPath]; 32 33 // Check if the keyword value is already cached 34 auto it = cachedKeywords.find(keyword); 35 if (it != cachedKeywords.end()) 36 { 37 value = it->second; 38 } 39 else 40 { 41 if (keyword == "HW") 42 { 43 // HW is a vector<uint8_t>, the others are a string. 44 util::getProperty("com.ibm.ipzvpd.VINI", "HW", inventoryPath, 45 INVENTORY_MGR_IFACE, bus, value); 46 } 47 else 48 { 49 // Get keyword value from D-Bus interface/property. The property 50 // name is normally the same as the VPD keyword name. However, the 51 // CCIN keyword is stored in the Model property. 52 std::string property{(keyword == "CCIN") ? "Model" : keyword}; 53 std::string stringValue; 54 util::getProperty(ASSET_IFACE, property, inventoryPath, 55 INVENTORY_MGR_IFACE, bus, stringValue); 56 57 if (!stringValue.empty()) 58 { 59 value.insert(value.begin(), stringValue.begin(), 60 stringValue.end()); 61 } 62 } 63 64 // Cache keyword value 65 cachedKeywords[keyword] = value; 66 } 67 68 return value; 69 } 70 71 } // namespace phosphor::power::regulators 72