| /* |
| * |
| * Copyright (c) 2020-2022 Project CHIP Authors |
| * Copyright (c) 2019 Nest Labs, Inc. |
| * |
| * 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. |
| */ |
| |
| /** |
| * @file |
| * Utilities for accessing persisted device configuration on |
| * platforms based on the Silicon Labs SDK. |
| */ |
| |
| #pragma once |
| |
| #include <functional> |
| |
| #include "nvm3.h" |
| #include "nvm3_hal_flash.h" |
| |
| #ifndef KVS_MAX_ENTRIES |
| #define KVS_MAX_ENTRIES 255 // Available key slot count for Kvs Key mapping. |
| #endif |
| |
| // Delay before Key/Value is actually saved in NVM |
| #define SILABS_KVS_SAVE_DELAY_SECONDS 5 |
| |
| static_assert((KVS_MAX_ENTRIES <= 255), "Implementation supports up to 255 Kvs entries"); |
| static_assert((KVS_MAX_ENTRIES >= 30), "Mininimal Kvs entries requirement is not met"); |
| |
| namespace chip { |
| namespace DeviceLayer { |
| namespace Internal { |
| |
| /** |
| * |
| * This implementation uses the Silicon Labs Silabs NVM3 flash data storage library |
| * as the underlying storage layer. |
| * |
| * NOTE: This class is designed to be mixed-in to the concrete subclass of the |
| * GenericConfigurationManagerImpl<> template. When used this way, the class |
| * naturally provides implementations for the delegated members referenced by |
| * the template class (e.g. the ReadConfigValue() method). |
| */ |
| |
| // Silabs NVM3 objects use a 20-bit number, |
| // NVM3 Key 19:16 Stack region |
| // NVM3 Key 15:0 Available NVM3 keys 0x0000 -> 0xFFFF. |
| // Matter stack reserved region ranges from 0x087200 to 0x087FFF |
| // e.g. key = 0x087201 |
| // '08' = Matter nvm3 region |
| // '72' = the sub region group base offset (Factory, Config, Counter or KVS) |
| // '01' = the id offset inside the group. |
| constexpr uint32_t kUserNvm3KeyDomainLoLimit = 0x000000U; // User Domain NVM3 Key Range lower limit |
| constexpr uint32_t kUserNvm3KeyDomainHiLimit = 0x00FFFFU; // User Domain NVM3 Key Range Maximum limit |
| constexpr uint32_t kMatterNvm3KeyDomain = 0x080000U; |
| constexpr uint32_t kMatterNvm3KeyLoLimit = 0x087200U; // Do not modify without Silabs GSDK team approval |
| constexpr uint32_t kMatterNvm3KeyHiLimit = 0x087FFFU; // Do not modify without Silabs GSDK team approval |
| constexpr inline uint32_t SilabsConfigKey(uint8_t keyBaseOffset, uint8_t id) |
| { |
| return kMatterNvm3KeyDomain | static_cast<uint32_t>(keyBaseOffset) << 8 | id; |
| } |
| |
| class SilabsConfig |
| { |
| public: |
| // Definitions for Silicon Labs EFR32 NVM3 driver:- |
| |
| using Key = uint32_t; |
| |
| // NVM3 key base offsets used by the CHIP Device Layer. |
| // ** Key base can range from 0x72 to 0x7F ** |
| // Persistent config values set at manufacturing time. Retained during factory reset. |
| static constexpr uint8_t kMatterFactory_KeyBase = 0x72; |
| // Persistent config values set at runtime. Cleared during factory reset. |
| static constexpr uint8_t kMatterConfig_KeyBase = 0x73; |
| // Persistent counter values set at runtime. Retained during factory reset. |
| static constexpr uint8_t kMatterCounter_KeyBase = 0x74; |
| // Persistent config values set at runtime. Cleared during factory reset. |
| static constexpr uint8_t kMatterKvs_KeyBase = 0x75; |
| |
| // Key definitions for well-known configuration values. |
| // Factory config keys |
| static constexpr Key kConfigKey_SerialNum = SilabsConfigKey(kMatterFactory_KeyBase, 0x00); |
| static constexpr Key kConfigKey_MfrDeviceId = SilabsConfigKey(kMatterFactory_KeyBase, 0x01); |
| static constexpr Key kConfigKey_MfrDeviceCert = SilabsConfigKey(kMatterFactory_KeyBase, 0x02); |
| static constexpr Key kConfigKey_MfrDevicePrivateKey = SilabsConfigKey(kMatterFactory_KeyBase, 0x03); |
| static constexpr Key kConfigKey_ManufacturingDate = SilabsConfigKey(kMatterFactory_KeyBase, 0x04); |
| static constexpr Key kConfigKey_SetupPayloadBitSet = SilabsConfigKey(kMatterFactory_KeyBase, 0x05); |
| static constexpr Key kConfigKey_MfrDeviceICACerts = SilabsConfigKey(kMatterFactory_KeyBase, 0x06); |
| static constexpr Key kConfigKey_SetupDiscriminator = SilabsConfigKey(kMatterFactory_KeyBase, 0x07); |
| static constexpr Key kConfigKey_Spake2pIterationCount = SilabsConfigKey(kMatterFactory_KeyBase, 0x08); |
| static constexpr Key kConfigKey_Spake2pSalt = SilabsConfigKey(kMatterFactory_KeyBase, 0x09); |
| static constexpr Key kConfigKey_Spake2pVerifier = SilabsConfigKey(kMatterFactory_KeyBase, 0x0A); |
| static constexpr Key kConfigKey_ProductId = SilabsConfigKey(kMatterFactory_KeyBase, 0x0B); |
| static constexpr Key kConfigKey_VendorId = SilabsConfigKey(kMatterFactory_KeyBase, 0x0C); |
| static constexpr Key kConfigKey_VendorName = SilabsConfigKey(kMatterFactory_KeyBase, 0x0D); |
| static constexpr Key kConfigKey_ProductName = SilabsConfigKey(kMatterFactory_KeyBase, 0x0E); |
| static constexpr Key kConfigKey_HardwareVersionString = SilabsConfigKey(kMatterFactory_KeyBase, 0x0F); |
| static constexpr Key KConfigKey_ProductLabel = SilabsConfigKey(kMatterFactory_KeyBase, 0x10); |
| static constexpr Key kConfigKey_ProductURL = SilabsConfigKey(kMatterFactory_KeyBase, 0x11); |
| static constexpr Key kConfigKey_PartNumber = SilabsConfigKey(kMatterFactory_KeyBase, 0x12); |
| static constexpr Key kConfigKey_UniqueId = SilabsConfigKey(kMatterFactory_KeyBase, 0x1F); |
| // Matter Config Keys |
| static constexpr Key kConfigKey_ServiceConfig = SilabsConfigKey(kMatterConfig_KeyBase, 0x01); |
| static constexpr Key kConfigKey_PairedAccountId = SilabsConfigKey(kMatterConfig_KeyBase, 0x02); |
| static constexpr Key kConfigKey_ServiceId = SilabsConfigKey(kMatterConfig_KeyBase, 0x03); |
| static constexpr Key kConfigKey_LastUsedEpochKeyId = SilabsConfigKey(kMatterConfig_KeyBase, 0x05); |
| static constexpr Key kConfigKey_FailSafeArmed = SilabsConfigKey(kMatterConfig_KeyBase, 0x06); |
| static constexpr Key kConfigKey_GroupKey = SilabsConfigKey(kMatterConfig_KeyBase, 0x07); |
| static constexpr Key kConfigKey_HardwareVersion = SilabsConfigKey(kMatterConfig_KeyBase, 0x08); |
| static constexpr Key kConfigKey_RegulatoryLocation = SilabsConfigKey(kMatterConfig_KeyBase, 0x09); |
| static constexpr Key kConfigKey_CountryCode = SilabsConfigKey(kMatterConfig_KeyBase, 0x0A); |
| static constexpr Key kConfigKey_WiFiSSID = SilabsConfigKey(kMatterConfig_KeyBase, 0x0C); |
| static constexpr Key kConfigKey_WiFiPSK = SilabsConfigKey(kMatterConfig_KeyBase, 0x0D); |
| static constexpr Key kConfigKey_WiFiSEC = SilabsConfigKey(kMatterConfig_KeyBase, 0x0E); |
| static constexpr Key kConfigKey_GroupKeyBase = SilabsConfigKey(kMatterConfig_KeyBase, 0x0F); |
| static constexpr Key kConfigKey_LockUser = SilabsConfigKey(kMatterConfig_KeyBase, 0x10); |
| static constexpr Key kConfigKey_Credential = SilabsConfigKey(kMatterConfig_KeyBase, 0x11); |
| static constexpr Key kConfigKey_LockUserName = SilabsConfigKey(kMatterConfig_KeyBase, 0x12); |
| static constexpr Key kConfigKey_CredentialData = SilabsConfigKey(kMatterConfig_KeyBase, 0x13); |
| static constexpr Key kConfigKey_UserCredentials = SilabsConfigKey(kMatterConfig_KeyBase, 0x14); |
| static constexpr Key kConfigKey_WeekDaySchedules = SilabsConfigKey(kMatterConfig_KeyBase, 0x15); |
| static constexpr Key kConfigKey_YearDaySchedules = SilabsConfigKey(kMatterConfig_KeyBase, 0x16); |
| static constexpr Key kConfigKey_HolidaySchedules = SilabsConfigKey(kMatterConfig_KeyBase, 0x17); |
| static constexpr Key kConfigKey_OpKeyMap = SilabsConfigKey(kMatterConfig_KeyBase, 0x20); |
| static constexpr Key kConfigKey_Creds_KeyId = SilabsConfigKey(kMatterConfig_KeyBase, 0x21); |
| static constexpr Key kConfigKey_Creds_Base_Addr = SilabsConfigKey(kMatterConfig_KeyBase, 0x22); |
| static constexpr Key kConfigKey_Creds_DAC_Offset = SilabsConfigKey(kMatterConfig_KeyBase, 0x23); |
| static constexpr Key kConfigKey_Creds_DAC_Size = SilabsConfigKey(kMatterConfig_KeyBase, 0x24); |
| static constexpr Key kConfigKey_Creds_PAI_Offset = SilabsConfigKey(kMatterConfig_KeyBase, 0x25); |
| static constexpr Key kConfigKey_Creds_PAI_Size = SilabsConfigKey(kMatterConfig_KeyBase, 0x26); |
| static constexpr Key kConfigKey_Creds_CD_Offset = SilabsConfigKey(kMatterConfig_KeyBase, 0x27); |
| static constexpr Key kConfigKey_Creds_CD_Size = SilabsConfigKey(kMatterConfig_KeyBase, 0x28); |
| |
| static constexpr Key kConfigKey_GroupKeyMax = |
| SilabsConfigKey(kMatterConfig_KeyBase, 0x1E); // Allows 16 Group Keys to be created. |
| |
| // Matter Counter Keys |
| static constexpr Key kConfigKey_BootCount = SilabsConfigKey(kMatterCounter_KeyBase, 0x00); |
| static constexpr Key kConfigKey_TotalOperationalHours = SilabsConfigKey(kMatterCounter_KeyBase, 0x01); |
| static constexpr Key kConfigKey_LifeTimeCounter = SilabsConfigKey(kMatterCounter_KeyBase, 0x02); |
| static constexpr Key kConfigKey_MigrationCounter = SilabsConfigKey(kMatterCounter_KeyBase, 0x03); |
| |
| // Matter KVS storage Keys |
| static constexpr Key kConfigKey_KvsStringKeyMap = SilabsConfigKey(kMatterKvs_KeyBase, 0x00); |
| static constexpr Key kConfigKey_KvsFirstKeySlot = SilabsConfigKey(kMatterKvs_KeyBase, 0x01); |
| static constexpr Key kConfigKey_KvsLastKeySlot = SilabsConfigKey(kMatterKvs_KeyBase, KVS_MAX_ENTRIES); |
| |
| // Set key id limits for each group. |
| static constexpr Key kMinConfigKey_MatterFactory = SilabsConfigKey(kMatterFactory_KeyBase, 0x00); |
| static constexpr Key kMaxConfigKey_MatterFactory = SilabsConfigKey(kMatterFactory_KeyBase, 0x1F); |
| static constexpr Key kMinConfigKey_MatterConfig = SilabsConfigKey(kMatterConfig_KeyBase, 0x00); |
| static constexpr Key kMaxConfigKey_MatterConfig = SilabsConfigKey(kMatterConfig_KeyBase, 0x20); |
| |
| // Allows 32 Counters to be created. |
| static constexpr Key kMinConfigKey_MatterCounter = SilabsConfigKey(kMatterCounter_KeyBase, 0x00); |
| static constexpr Key kMaxConfigKey_MatterCounter = SilabsConfigKey(kMatterCounter_KeyBase, 0x1F); |
| |
| static constexpr Key kMinConfigKey_MatterKvs = kConfigKey_KvsStringKeyMap; |
| static constexpr Key kMaxConfigKey_MatterKvs = kConfigKey_KvsLastKeySlot; |
| |
| static CHIP_ERROR Init(void); |
| static void DeInit(void); |
| |
| // Configuration methods used by the GenericConfigurationManagerImpl<> template. |
| static CHIP_ERROR ReadConfigValue(Key key, bool & val); |
| static CHIP_ERROR ReadConfigValue(Key key, uint32_t & val); |
| static CHIP_ERROR ReadConfigValue(Key key, uint64_t & val); |
| static CHIP_ERROR ReadConfigValueStr(Key key, char * buf, size_t bufSize, size_t & outLen); |
| static CHIP_ERROR ReadConfigValueBin(Key key, uint8_t * buf, size_t bufSize, size_t & outLen); |
| static CHIP_ERROR ReadConfigValueBin(Key key, uint8_t * buf, size_t bufSize, size_t & outLen, size_t offset); |
| static CHIP_ERROR ReadConfigValueCounter(uint8_t counterIdx, uint32_t & val); |
| static CHIP_ERROR WriteConfigValue(Key key, bool val); |
| static CHIP_ERROR WriteConfigValue(Key key, uint32_t val); |
| static CHIP_ERROR WriteConfigValue(Key key, uint64_t val); |
| static CHIP_ERROR WriteConfigValueStr(Key key, const char * str); |
| static CHIP_ERROR WriteConfigValueStr(Key key, const char * str, size_t strLen); |
| static CHIP_ERROR WriteConfigValueBin(Key key, const uint8_t * data, size_t dataLen); |
| static CHIP_ERROR WriteConfigValueCounter(uint8_t counterIdx, uint32_t val); |
| static CHIP_ERROR ClearConfigValue(Key key); |
| static bool ConfigValueExists(Key key); |
| static bool ConfigValueExists(Key key, size_t & dataLen); |
| static CHIP_ERROR FactoryResetConfig(void); |
| static bool ValidConfigKey(Key key); |
| |
| static void RunConfigUnitTest(void); |
| static void RepackNvm3Flash(void); |
| |
| protected: |
| using ForEachRecordFunct = std::function<CHIP_ERROR(const Key & nvm3Key, const size_t & length)>; |
| static CHIP_ERROR ForEachRecord(Key firstKey, Key lastKey, bool addNewRecord, ForEachRecordFunct funct); |
| |
| private: |
| static CHIP_ERROR MapNvm3Error(Ecode_t nvm3Res); |
| }; |
| |
| } // namespace Internal |
| } // namespace DeviceLayer |
| } // namespace chip |
