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 // XXX: Since qservice currently runs as part of hwc instead of a standalone
32 // process, the implementation below is overridden and the notifyCallback in
33 // hwc_qclient is directly called.
34 
35 namespace qClient {
36 
37 enum {
38     NOTIFY_CALLBACK = IBinder::FIRST_CALL_TRANSACTION,
39 };
40 
41 class BpQClient : public BpInterface<IQClient>
42 {
43 public:
44     BpQClient(const sp<IBinder>& impl)
45         : BpInterface<IQClient>(impl) {}
46 
47     virtual status_t notifyCallback(uint32_t command,
48             const Parcel* inParcel,
49             Parcel* outParcel) {
50         Parcel data;
51         Parcel *reply = outParcel;
52         data.writeInterfaceToken(IQClient::getInterfaceDescriptor());
53         data.writeInt32(command);
54         if (inParcel->dataAvail())
55             data.appendFrom(inParcel, inParcel->dataPosition(),
56                     inParcel->dataAvail());
57         status_t result = remote()->transact(NOTIFY_CALLBACK, data, reply);
58         return result;
59     }
60 };
61 
62 IMPLEMENT_META_INTERFACE(QClient, "android.display.IQClient");
63 
64 // ----------------------------------------------------------------------
65 //Stub implementation - nothing needed here
66 status_t BnQClient::onTransact(
67     uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
68 {
69     switch(code) {
70         case NOTIFY_CALLBACK: {
71             CHECK_INTERFACE(IQClient, data, reply);
72             uint32_t command = data.readInt32();
73             notifyCallback(command, &data, reply);
74             return NO_ERROR;
75         } break;
76         default:
77             return BBinder::onTransact(code, data, reply, flags);
78     }
79 
80 }
81 
82 }; // namespace qClient
83