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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 #ifndef HDCP_H_
     18 
     19 #define HDCP_H_
     20 
     21 #include <media/IHDCP.h>
     22 #include <utils/Mutex.h>
     23 
     24 namespace android {
     25 
     26 struct HDCP : public BnHDCP {
     27     HDCP(bool createEncryptionModule);
     28     virtual ~HDCP();
     29 
     30     virtual status_t setObserver(const sp<IHDCPObserver> &observer);
     31     virtual status_t initAsync(const char *host, unsigned port);
     32     virtual status_t shutdownAsync();
     33     virtual uint32_t getCaps();
     34 
     35     virtual status_t encrypt(
     36             const void *inData, size_t size, uint32_t streamCTR,
     37             uint64_t *outInputCTR, void *outData);
     38 
     39     virtual status_t encryptNative(
     40             const sp<GraphicBuffer> &graphicBuffer,
     41             size_t offset, size_t size, uint32_t streamCTR,
     42             uint64_t *outInputCTR, void *outData);
     43 
     44     virtual status_t decrypt(
     45             const void *inData, size_t size,
     46             uint32_t streamCTR, uint64_t outInputCTR, void *outData);
     47 
     48 private:
     49     Mutex mLock;
     50 
     51     bool mIsEncryptionModule;
     52 
     53     void *mLibHandle;
     54     HDCPModule *mHDCPModule;
     55     sp<IHDCPObserver> mObserver;
     56 
     57     static void ObserveWrapper(void *me, int msg, int ext1, int ext2);
     58     void observe(int msg, int ext1, int ext2);
     59 
     60     DISALLOW_EVIL_CONSTRUCTORS(HDCP);
     61 };
     62 
     63 }  // namespace android
     64 
     65 #endif  // HDCP_H_
     66 
     67