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/*
* 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().postEventOrDie(
CHRE_EVENT_WWAN_CELL_INFO_RESULT, result, freeCellInfoResultCallback,
mCellInfoRequestingNanoappInstanceId.value());
} else {
LOGE("Cell info results received unexpectedly");
}
}
void WwanRequestManager::logStateToBuffer(DebugDumpWrapper &debugDump) const {
debugDump.print("\nWWAN:\n");
if (mCellInfoRequestingNanoappInstanceId.has_value()) {
debugDump.print(" WWAN request pending nanoappId=%" PRIu32 "\n",
mCellInfoRequestingNanoappInstanceId.value());
}
}
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
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