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      1 /*
      2  * Copyright (C) 2015 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 #define LOG_TAG "BpCameraServiceProxy"
     18 
     19 #include <stdint.h>
     20 
     21 #include <binder/Parcel.h>
     22 
     23 #include <camera/ICameraServiceProxy.h>
     24 
     25 namespace android {
     26 
     27 class BpCameraServiceProxy: public BpInterface<ICameraServiceProxy> {
     28 public:
     29     explicit BpCameraServiceProxy(const sp<IBinder>& impl)
     30         : BpInterface<ICameraServiceProxy>(impl) {}
     31 
     32     virtual void pingForUserUpdate() {
     33         Parcel data;
     34         data.writeInterfaceToken(ICameraServiceProxy::getInterfaceDescriptor());
     35         remote()->transact(BnCameraServiceProxy::PING_FOR_USER_UPDATE, data, nullptr,
     36                 IBinder::FLAG_ONEWAY);
     37     }
     38 
     39     virtual void notifyCameraState(String16 cameraId, CameraState newCameraState) {
     40         Parcel data;
     41         data.writeInterfaceToken(ICameraServiceProxy::getInterfaceDescriptor());
     42         data.writeString16(cameraId);
     43         data.writeInt32(newCameraState);
     44         remote()->transact(BnCameraServiceProxy::NOTIFY_CAMERA_STATE, data, nullptr,
     45                 IBinder::FLAG_ONEWAY);
     46     }
     47 
     48 };
     49 
     50 
     51 IMPLEMENT_META_INTERFACE(CameraServiceProxy, "android.hardware.ICameraServiceProxy");
     52 
     53 status_t BnCameraServiceProxy::onTransact(uint32_t code, const Parcel& data, Parcel* reply,
     54         uint32_t flags) {
     55     switch(code) {
     56         case PING_FOR_USER_UPDATE: {
     57             CHECK_INTERFACE(ICameraServiceProxy, data, reply);
     58             pingForUserUpdate();
     59             return NO_ERROR;
     60         } break;
     61         case NOTIFY_CAMERA_STATE: {
     62             CHECK_INTERFACE(ICameraServiceProxy, data, reply);
     63             String16 cameraId = data.readString16();
     64             CameraState newCameraState =
     65                 static_cast<CameraState>(data.readInt32());
     66             notifyCameraState(cameraId, newCameraState);
     67             return NO_ERROR;
     68         } break;
     69         default:
     70             return BBinder::onTransact(code, data, reply, flags);
     71     }
     72 }
     73 }; // namespace android
     74