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      1 /*
      2 **
      3 ** Copyright 2013, The Android Open Source Project
      4 **
      5 ** Licensed under the Apache License, Version 2.0 (the "License");
      6 ** you may not use this file except in compliance with the License.
      7 ** You may obtain a copy of the License at
      8 **
      9 **     http://www.apache.org/licenses/LICENSE-2.0
     10 **
     11 ** Unless required by applicable law or agreed to in writing, software
     12 ** distributed under the License is distributed on an "AS IS" BASIS,
     13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     14 ** See the License for the specific language governing permissions and
     15 ** limitations under the License.
     16 */
     17 
     18 #include <stdint.h>
     19 #include <sys/types.h>
     20 
     21 #include <binder/Parcel.h>
     22 #include <binder/IPCThreadState.h>
     23 #include <binder/IServiceManager.h>
     24 
     25 #include <camera/ICameraServiceListener.h>
     26 
     27 namespace android {
     28 
     29 namespace {
     30     enum {
     31         STATUS_CHANGED = IBinder::FIRST_CALL_TRANSACTION,
     32     };
     33 }; // namespace anonymous
     34 
     35 class BpCameraServiceListener: public BpInterface<ICameraServiceListener>
     36 {
     37 
     38 public:
     39     BpCameraServiceListener(const sp<IBinder>& impl)
     40         : BpInterface<ICameraServiceListener>(impl)
     41     {
     42     }
     43 
     44     virtual void onStatusChanged(Status status, int32_t cameraId)
     45     {
     46         Parcel data, reply;
     47         data.writeInterfaceToken(
     48                               ICameraServiceListener::getInterfaceDescriptor());
     49 
     50         data.writeInt32(static_cast<int32_t>(status));
     51         data.writeInt32(cameraId);
     52 
     53         remote()->transact(STATUS_CHANGED,
     54                            data,
     55                            &reply,
     56                            IBinder::FLAG_ONEWAY);
     57 
     58         reply.readExceptionCode();
     59     }
     60 };
     61 
     62 IMPLEMENT_META_INTERFACE(CameraServiceListener,
     63                          "android.hardware.ICameraServiceListener");
     64 
     65 // ----------------------------------------------------------------------
     66 
     67 status_t BnCameraServiceListener::onTransact(
     68     uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
     69 {
     70     switch(code) {
     71         case STATUS_CHANGED: {
     72             CHECK_INTERFACE(ICameraServiceListener, data, reply);
     73 
     74             Status status = static_cast<Status>(data.readInt32());
     75             int32_t cameraId = data.readInt32();
     76 
     77             onStatusChanged(status, cameraId);
     78             reply->writeNoException();
     79 
     80             return NO_ERROR;
     81         } break;
     82         default:
     83             return BBinder::onTransact(code, data, reply, flags);
     84     }
     85 }
     86 
     87 // ----------------------------------------------------------------------------
     88 
     89 }; // namespace android
     90