1 /*
2  * Copyright (C) 2021 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 package com.android.server.uwb.secure.omapi;
17 
18 import androidx.annotation.WorkerThread;
19 
20 import com.android.server.uwb.secure.iso7816.CommandApdu;
21 import com.android.server.uwb.secure.iso7816.ResponseApdu;
22 
23 import java.io.IOException;
24 
25 /** Interface for using OMAPI to communicate with a secure element applet with APDUs */
26 @WorkerThread
27 public interface OmapiConnection {
28     /** Callback for listening to initialization completion event. */
29     @WorkerThread
30     public interface InitCompletionCallback {
31         /** Called when initializtion is completed. */
onInitCompletion()32         void onInitCompletion();
33     }
34 
35     /** Initialize the connection. */
init(InitCompletionCallback callback)36     void init(InitCompletionCallback callback);
37 
38     /** Transmits the given CommandApdu to the secure element */
transmit(CommandApdu command)39     ResponseApdu transmit(CommandApdu command) throws IOException;
40 
41     /** Opens a logical channel to the FiRa applet. */
openChannel()42     ResponseApdu openChannel() throws IOException;
43 
44     /** Closes all channels to the SE. */
closeChannel()45     void closeChannel() throws IOException;
46 }
47