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      1 /*
      2  * Copyright (C) 2010 The Android Open Source Project
      3  * Copyright (C) 2012-2013, The Linux Foundation. All rights reserved.
      4  *
      5  * Not a Contribution, Apache license notifications and license are
      6  * retained for attribution purposes only.
      7 
      8  * Licensed under the Apache License, Version 2.0 (the "License");
      9  * you may not use this file except in compliance with the License.
     10  * You may obtain a copy of the License at
     11  *
     12  *      http://www.apache.org/licenses/LICENSE-2.0
     13  *
     14  * Unless required by applicable law or agreed to in writing, software
     15  * distributed under the License is distributed on an "AS IS" BASIS,
     16  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     17  * See the License for the specific language governing permissions and
     18  * limitations under the License.
     19  */
     20 
     21 #include <sys/types.h>
     22 #include <binder/Parcel.h>
     23 #include <binder/IBinder.h>
     24 #include <binder/IInterface.h>
     25 #include <utils/Errors.h>
     26 #include <IQClient.h>
     27 
     28 using namespace android;
     29 
     30 // ---------------------------------------------------------------------------
     31 
     32 namespace qClient {
     33 
     34 enum {
     35     NOTIFY_CALLBACK = IBinder::FIRST_CALL_TRANSACTION,
     36 };
     37 
     38 class BpQClient : public BpInterface<IQClient>
     39 {
     40 public:
     41     BpQClient(const sp<IBinder>& impl)
     42         : BpInterface<IQClient>(impl) {}
     43 
     44     virtual status_t notifyCallback(uint32_t msg, uint32_t value) {
     45         Parcel data, reply;
     46         data.writeInterfaceToken(IQClient::getInterfaceDescriptor());
     47         data.writeInt32(msg);
     48         data.writeInt32(value);
     49         remote()->transact(NOTIFY_CALLBACK, data, &reply);
     50         status_t result = reply.readInt32();
     51         return result;
     52     }
     53 };
     54 
     55 IMPLEMENT_META_INTERFACE(QClient, "android.display.IQClient");
     56 
     57 // ----------------------------------------------------------------------
     58 
     59 status_t BnQClient::onTransact(
     60     uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
     61 {
     62     switch(code) {
     63         case NOTIFY_CALLBACK: {
     64             CHECK_INTERFACE(IQClient, data, reply);
     65             uint32_t msg = data.readInt32();
     66             uint32_t value = data.readInt32();
     67             notifyCallback(msg, value);
     68             return NO_ERROR;
     69         } break;
     70         default:
     71             return BBinder::onTransact(code, data, reply, flags);
     72     }
     73 }
     74 
     75 }; // namespace qClient
     76