| /* |
| * Copyright (C) 2017 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. |
| */ |
| |
| #include "chre/core/wwan_request_manager.h" |
| |
| #include "chre/core/event_loop_manager.h" |
| #include "chre/platform/fatal_error.h" |
| #include "chre/platform/log.h" |
| #include "chre/util/system/debug_dump.h" |
| |
| namespace chre { |
| |
| void WwanRequestManager::init() { |
| return mPlatformWwan.init(); |
| } |
| |
| uint32_t WwanRequestManager::getCapabilities() { |
| return mPlatformWwan.getCapabilities(); |
| } |
| |
| bool WwanRequestManager::requestCellInfo(Nanoapp *nanoapp, |
| const void *cookie) { |
| CHRE_ASSERT(nanoapp); |
| |
| bool success = false; |
| if (!mCellInfoRequestingNanoappInstanceId.has_value()) { |
| success = mPlatformWwan.requestCellInfo(); |
| if (success) { |
| nanoapp->registerForBroadcastEvent(CHRE_EVENT_WWAN_CELL_INFO_RESULT); |
| mCellInfoRequestingNanoappInstanceId = nanoapp->getInstanceId(); |
| mCellInfoRequestingNanoappCookie = cookie; |
| } |
| } else { |
| LOGE("Cell info request made while a request is in flight"); |
| } |
| |
| return success; |
| } |
| |
| void WwanRequestManager::handleCellInfoResult(chreWwanCellInfoResult *result) { |
| auto callback = [](uint16_t /* eventType */, void *eventData) { |
| auto *cellInfoResult = static_cast<chreWwanCellInfoResult *>(eventData); |
| EventLoopManagerSingleton::get()->getWwanRequestManager() |
| .handleCellInfoResultSync(cellInfoResult); |
| }; |
| |
| EventLoopManagerSingleton::get()->deferCallback( |
| SystemCallbackType::WwanHandleCellInfoResult, result, callback); |
| } |
| |
| void WwanRequestManager::handleCellInfoResultSync( |
| chreWwanCellInfoResult *result) { |
| if (mCellInfoRequestingNanoappInstanceId.has_value()) { |
| result->cookie = mCellInfoRequestingNanoappCookie; |
| EventLoopManagerSingleton::get()->getEventLoop() |
| .postEvent(CHRE_EVENT_WWAN_CELL_INFO_RESULT, result, |
| freeCellInfoResultCallback, kSystemInstanceId, |
| mCellInfoRequestingNanoappInstanceId.value()); |
| } else { |
| LOGE("Cell info results received unexpectedly"); |
| } |
| } |
| |
| bool WwanRequestManager::logStateToBuffer(char *buffer, size_t *bufferPos, |
| size_t bufferSize) const { |
| bool success = debugDumpPrint(buffer, bufferPos, bufferSize, "\nWWAN:\n"); |
| if (mCellInfoRequestingNanoappInstanceId.has_value()) { |
| success &= debugDumpPrint(buffer, bufferPos, bufferSize, |
| " WWAN request pending nanoappId=%" PRIu32 "\n", |
| mCellInfoRequestingNanoappInstanceId.value()); |
| } |
| return success; |
| } |
| |
| void WwanRequestManager::handleFreeCellInfoResult( |
| chreWwanCellInfoResult *result) { |
| if (mCellInfoRequestingNanoappInstanceId.has_value()) { |
| Nanoapp *nanoapp = EventLoopManagerSingleton::get()->getEventLoop() |
| .findNanoappByInstanceId(*mCellInfoRequestingNanoappInstanceId); |
| if (nanoapp != nullptr) { |
| nanoapp->unregisterForBroadcastEvent(CHRE_EVENT_WWAN_CELL_INFO_RESULT); |
| } else { |
| LOGE("Freeing cell info for non-existent nanoapp"); |
| } |
| |
| mCellInfoRequestingNanoappInstanceId.reset(); |
| } else { |
| LOGE("Cell info released with no pending request"); |
| } |
| |
| mPlatformWwan.releaseCellInfoResult(result); |
| } |
| |
| void WwanRequestManager::freeCellInfoResultCallback(uint16_t eventType, |
| void *eventData) { |
| auto *result = static_cast<chreWwanCellInfoResult *>(eventData); |
| EventLoopManagerSingleton::get()->getWwanRequestManager() |
| .handleFreeCellInfoResult(result); |
| } |
| |
| } // namespace chre |