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      1 /*
      2 **
      3 ** Copyright 2008, 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/ICameraService.h>
     26 
     27 namespace android {
     28 
     29 class BpCameraService: public BpInterface<ICameraService>
     30 {
     31 public:
     32     BpCameraService(const sp<IBinder>& impl)
     33         : BpInterface<ICameraService>(impl)
     34     {
     35     }
     36 
     37     // connect to camera service
     38     virtual sp<ICamera> connect(const sp<ICameraClient>& cameraClient)
     39     {
     40         Parcel data, reply;
     41         data.writeInterfaceToken(ICameraService::getInterfaceDescriptor());
     42         data.writeStrongBinder(cameraClient->asBinder());
     43         remote()->transact(BnCameraService::CONNECT, data, &reply);
     44         return interface_cast<ICamera>(reply.readStrongBinder());
     45     }
     46 };
     47 
     48 IMPLEMENT_META_INTERFACE(CameraService, "android.hardware.ICameraService");
     49 
     50 // ----------------------------------------------------------------------
     51 
     52 status_t BnCameraService::onTransact(
     53     uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
     54 {
     55     switch(code) {
     56         case CONNECT: {
     57             CHECK_INTERFACE(ICameraService, data, reply);
     58             sp<ICameraClient> cameraClient = interface_cast<ICameraClient>(data.readStrongBinder());
     59             sp<ICamera> camera = connect(cameraClient);
     60             reply->writeStrongBinder(camera->asBinder());
     61             return NO_ERROR;
     62         } break;
     63         default:
     64             return BBinder::onTransact(code, data, reply, flags);
     65     }
     66 }
     67 
     68 // ----------------------------------------------------------------------------
     69 
     70 }; // namespace android
     71 
     72