1 /*
2 **
3 ** Copyright 2015, 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/IMemory.h>
23 #include <media/ICrypto.h>
24 #include <media/IDrm.h>
25 #include <media/IMediaDrmService.h>
26
27 #include <utils/Errors.h> // for status_t
28 #include <utils/String8.h>
29
30 namespace android {
31
32 enum {
33 MAKE_CRYPTO = IBinder::FIRST_CALL_TRANSACTION,
34 MAKE_DRM,
35 };
36
37 class BpMediaDrmService: public BpInterface<IMediaDrmService>
38 {
39 public:
BpMediaDrmService(const sp<IBinder> & impl)40 explicit BpMediaDrmService(const sp<IBinder>& impl)
41 : BpInterface<IMediaDrmService>(impl)
42 {
43 }
44
makeCrypto()45 virtual sp<ICrypto> makeCrypto() {
46 Parcel data, reply;
47 data.writeInterfaceToken(IMediaDrmService::getInterfaceDescriptor());
48 remote()->transact(MAKE_CRYPTO, data, &reply);
49 return interface_cast<ICrypto>(reply.readStrongBinder());
50 }
51
makeDrm()52 virtual sp<IDrm> makeDrm() {
53 Parcel data, reply;
54 data.writeInterfaceToken(IMediaDrmService::getInterfaceDescriptor());
55 remote()->transact(MAKE_DRM, data, &reply);
56 return interface_cast<IDrm>(reply.readStrongBinder());
57 }
58
59 };
60
61 IMPLEMENT_META_INTERFACE(MediaDrmService, "android.media.IMediaDrmService");
62
63 // ----------------------------------------------------------------------
64
onTransact(uint32_t code,const Parcel & data,Parcel * reply,uint32_t flags)65 status_t BnMediaDrmService::onTransact(
66 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
67 {
68 switch (code) {
69 case MAKE_CRYPTO: {
70 CHECK_INTERFACE(IMediaDrmService, data, reply);
71 sp<ICrypto> crypto = makeCrypto();
72 reply->writeStrongBinder(IInterface::asBinder(crypto));
73 return NO_ERROR;
74 } break;
75 case MAKE_DRM: {
76 CHECK_INTERFACE(IMediaDrmService, data, reply);
77 sp<IDrm> drm = makeDrm();
78 reply->writeStrongBinder(IInterface::asBinder(drm));
79 return NO_ERROR;
80 } break;
81 default:
82 return BBinder::onTransact(code, data, reply, flags);
83 }
84 }
85
86 // ----------------------------------------------------------------------------
87
88 } // namespace android
89