| /* |
| * |
| * Copyright (c) 2021 Project CHIP Authors |
| * All rights reserved. |
| * |
| * 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 |
| * Platform-specific key value storage implementation for MW320 |
| */ |
| /* this file behaves like a config.h, comes first */ |
| #include <platform/internal/CHIPDeviceLayerInternal.h> |
| |
| #include "lib/support/CHIPMem.h" |
| #include <platform/KeyValueStoreManager.h> |
| #include <platform/nxp/mw320/MW320Config.h> |
| #include <string> |
| extern "C" { |
| #include <network_flash_storage.h> |
| } |
| |
| namespace chip { |
| namespace DeviceLayer { |
| namespace PersistedStorage { |
| |
| /* TODO: adjust this value */ |
| #define MAX_NO_OF_KEYS 255 |
| |
| KeyValueStoreManagerImpl KeyValueStoreManagerImpl::sInstance; |
| |
| #define kMaxKeyValueBytes 2048 |
| CHIP_ERROR KeyValueStoreManagerImpl::_Get(const char * key, void * value, size_t value_size, size_t * read_bytes_size, |
| size_t offset_bytes) |
| { |
| uint32_t ret; |
| uint32_t read_size = kMaxKeyValueBytes; |
| uint8_t buf[kMaxKeyValueBytes]; |
| |
| VerifyOrReturnError(key != nullptr, CHIP_ERROR_INVALID_ARGUMENT); |
| VerifyOrReturnError(read_bytes_size != nullptr, CHIP_ERROR_INVALID_ARGUMENT); |
| |
| // 1. Casting away the "const" because of the difference of the interface definition. The API won't change the value |
| // 2. read_size is always less than kMaxKeyValueBytes |
| ret = ::get_saved_wifi_network((char *) key, buf, &read_size); |
| VerifyOrReturnError(ret == 0, CHIP_ERROR_PERSISTED_STORAGE_VALUE_NOT_FOUND); |
| |
| if ((value == nullptr) || (value_size == 0)) |
| { |
| *read_bytes_size = read_size; |
| return CHIP_ERROR_BUFFER_TOO_SMALL; |
| } |
| |
| VerifyOrReturnError(value != nullptr, CHIP_ERROR_INVALID_ARGUMENT); |
| |
| size_t copy_size = std::min(value_size, (size_t)(read_size - offset_bytes)); |
| ::memcpy(value, &buf[offset_bytes], copy_size); |
| |
| *read_bytes_size = copy_size; |
| |
| if ((read_size - offset_bytes) > value_size) |
| { |
| return CHIP_ERROR_BUFFER_TOO_SMALL; |
| } |
| |
| return CHIP_NO_ERROR; |
| } |
| |
| CHIP_ERROR KeyValueStoreManagerImpl::_Put(const char * key, const void * value, size_t value_size) |
| { |
| uint32_t ret; |
| ret = ::save_wifi_network((char *) key, (uint8_t *) value, value_size); |
| VerifyOrReturnError(ret == 0, CHIP_ERROR_PERSISTED_STORAGE_FAILED); |
| |
| return CHIP_NO_ERROR; |
| } |
| |
| CHIP_ERROR KeyValueStoreManagerImpl::_Delete(const char * key) |
| { |
| uint32_t ret; |
| ret = ::reset_saved_wifi_network((char *) key); |
| VerifyOrReturnError(ret == 0, CHIP_ERROR_PERSISTED_STORAGE_VALUE_NOT_FOUND); |
| |
| return CHIP_NO_ERROR; |
| } |
| |
| } // namespace PersistedStorage |
| } // namespace DeviceLayer |
| } // namespace chip |