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      1 /*
      2  * Copyright (C) 2012 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 #include <binder/IInterface.h>
     18 #include <media/hardware/HDCPAPI.h>
     19 #include <media/stagefright/foundation/ABase.h>
     20 
     21 namespace android {
     22 
     23 struct IHDCPObserver : public IInterface {
     24     DECLARE_META_INTERFACE(HDCPObserver);
     25 
     26     virtual void notify(
     27             int msg, int ext1, int ext2, const Parcel *obj) = 0;
     28 
     29 private:
     30     DISALLOW_EVIL_CONSTRUCTORS(IHDCPObserver);
     31 };
     32 
     33 struct IHDCP : public IInterface {
     34     DECLARE_META_INTERFACE(HDCP);
     35 
     36     // Called to specify the observer that receives asynchronous notifications
     37     // from the HDCP implementation to signal completion/failure of asynchronous
     38     // operations (such as initialization) or out of band events.
     39     virtual status_t setObserver(const sp<IHDCPObserver> &observer) = 0;
     40 
     41     // Request to setup an HDCP session with the specified host listening
     42     // on the specified port.
     43     virtual status_t initAsync(const char *host, unsigned port) = 0;
     44 
     45     // Request to shutdown the active HDCP session.
     46     virtual status_t shutdownAsync() = 0;
     47 
     48     // Encrypt a data according to the HDCP spec. The data is to be
     49     // encrypted in-place, only size bytes of data should be read/write,
     50     // even if the size is not a multiple of 128 bit (16 bytes).
     51     // This operation is to be synchronous, i.e. this call does not return
     52     // until outData contains size bytes of encrypted data.
     53     // streamCTR will be assigned by the caller (to 0 for the first PES stream,
     54     // 1 for the second and so on)
     55     // inputCTR will be maintained by the callee for each PES stream.
     56     virtual status_t encrypt(
     57             const void *inData, size_t size, uint32_t streamCTR,
     58             uint64_t *outInputCTR, void *outData) = 0;
     59 
     60 private:
     61     DISALLOW_EVIL_CONSTRUCTORS(IHDCP);
     62 };
     63 
     64 struct BnHDCPObserver : public BnInterface<IHDCPObserver> {
     65     virtual status_t onTransact(
     66             uint32_t code, const Parcel &data, Parcel *reply,
     67             uint32_t flags = 0);
     68 };
     69 
     70 struct BnHDCP : public BnInterface<IHDCP> {
     71     virtual status_t onTransact(
     72             uint32_t code, const Parcel &data, Parcel *reply,
     73             uint32_t flags = 0);
     74 };
     75 
     76 }  // namespace android
     77 
     78 
     79