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      1 /*
      2  * Copyright (C) 2017 The Android Open Source Project
      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 "chre/platform/platform_wwan.h"
     18 
     19 #include <cinttypes>
     20 
     21 #include "chre/core/event_loop_manager.h"
     22 #include "chre/platform/shared/pal_system_api.h"
     23 #include "chre/platform/log.h"
     24 
     25 namespace chre {
     26 
     27 PlatformWwan::~PlatformWwan() {
     28   if (mWwanApi != nullptr) {
     29     LOGD("Platform WWAN closing");
     30     prePalApiCall();
     31     mWwanApi->close();
     32     LOGD("Platform WWAN closed");
     33   }
     34 }
     35 
     36 void PlatformWwan::init() {
     37   prePalApiCall();
     38   mWwanApi = chrePalWwanGetApi(CHRE_PAL_WWAN_API_CURRENT_VERSION);
     39   if (mWwanApi != nullptr) {
     40     mWwanCallbacks.cellInfoResultCallback =
     41         PlatformWwanBase::cellInfoResultCallback;
     42     if (!mWwanApi->open(&gChrePalSystemApi, &mWwanCallbacks)) {
     43       LOGE("WWAN PAL open returned false");
     44       mWwanApi = nullptr;
     45     }
     46   } else {
     47     LOGW("Requested WWAN PAL (version %08" PRIx32 ") not found",
     48          CHRE_PAL_WWAN_API_CURRENT_VERSION);
     49   }
     50 }
     51 
     52 uint32_t PlatformWwan::getCapabilities() {
     53   if (mWwanApi != nullptr) {
     54     prePalApiCall();
     55     return mWwanApi->getCapabilities();
     56   } else {
     57     return CHRE_WWAN_CAPABILITIES_NONE;
     58   }
     59 }
     60 
     61 bool PlatformWwan::requestCellInfo() {
     62   if (mWwanApi != nullptr) {
     63     prePalApiCall();
     64     return mWwanApi->requestCellInfo();
     65   } else {
     66     return false;
     67   }
     68 }
     69 
     70 void PlatformWwan::releaseCellInfoResult(chreWwanCellInfoResult *result) {
     71   if (mWwanApi != nullptr) {
     72     prePalApiCall();
     73     mWwanApi->releaseCellInfoResult(result);
     74   }
     75 }
     76 
     77 void PlatformWwanBase::cellInfoResultCallback(
     78     struct chreWwanCellInfoResult *result) {
     79   EventLoopManagerSingleton::get()->getWwanRequestManager()
     80       .handleCellInfoResult(result);
     81 }
     82 
     83 }  // namespace chre
     84