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      1 /*
      2  * Copyright (C) 2010 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 package com.android.nfc.nxp;
     18 
     19 import android.content.Context;
     20 import android.content.SharedPreferences;
     21 
     22 
     23 /**
     24  * Native interface to the NFC Secure Element functions
     25  *
     26  * {@hide}
     27  */
     28 public class NativeNfcSecureElement {
     29 
     30     static final String PREF_SE_WIRED = "se_wired";
     31 
     32     private final Context mContext;
     33 
     34     SharedPreferences mPrefs;
     35     SharedPreferences.Editor mPrefsEditor;
     36 
     37     public NativeNfcSecureElement(Context context) {
     38         mContext = context;
     39 
     40         mPrefs = mContext.getSharedPreferences(NativeNfcManager.PREF, Context.MODE_PRIVATE);
     41         mPrefsEditor = mPrefs.edit();
     42     }
     43 
     44     private native int doNativeOpenSecureElementConnection();
     45 
     46     public int doOpenSecureElementConnection() {
     47         mPrefsEditor.putBoolean(PREF_SE_WIRED, true);
     48         mPrefsEditor.apply();
     49 
     50         return doNativeOpenSecureElementConnection();
     51     }
     52 
     53     private native boolean doNativeDisconnectSecureElementConnection(int handle);
     54 
     55     public boolean doDisconnect(int handle) {
     56         mPrefsEditor.putBoolean(PREF_SE_WIRED, false);
     57         mPrefsEditor.apply();
     58 
     59         return doNativeDisconnectSecureElementConnection(handle);
     60     }
     61 
     62     public native byte[] doTransceive(int handle, byte[] data);
     63 
     64     public native int[] doGetTechList(int handle);
     65 
     66     public native byte [] doGetUid(int handle);
     67 }
     68