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; 18 19 import android.annotation.SdkConstant; 20 import android.annotation.SdkConstant.SdkConstantType; 21 import android.content.Context; 22 import android.content.Intent; 23 import android.nfc.NdefTag; 24 import android.nfc.NfcAdapter; 25 import android.nfc.NdefMessage; 26 import android.nfc.Tag; 27 import android.os.Handler; 28 import android.os.Message; 29 import android.util.Log; 30 31 /** 32 * Native interface to the NFC Manager functions 33 */ 34 public class NativeNfcManager { 35 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 36 public static final String INTERNAL_LLCP_LINK_STATE_CHANGED_ACTION = "com.android.nfc.action.INTERNAL_LLCP_LINK_STATE_CHANGED"; 37 38 public static final String INTERNAL_LLCP_LINK_STATE_CHANGED_EXTRA = "com.android.nfc.extra.INTERNAL_LLCP_LINK_STATE"; 39 40 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 41 public static final String INTERNAL_TARGET_DESELECTED_ACTION = "com.android.nfc.action.INTERNAL_TARGET_DESELECTED"; 42 43 private static final String NFC_PERM = android.Manifest.permission.NFC; 44 45 /* Native structure */ 46 private int mNative; 47 48 private final Context mContext; 49 50 private final NfcService mNfcService; 51 52 private static final String TAG = "NativeNfcManager"; 53 54 public NativeNfcManager(Context context, NfcService service) { 55 mContext = context; 56 mNfcService = service; 57 } 58 59 /** 60 * Initializes Native structure 61 */ 62 public native boolean initializeNativeStructure(); 63 64 /** 65 * Initializes NFC stack. 66 */ 67 public native boolean initialize(); 68 69 /** 70 * Deinitializes NFC stack. 71 */ 72 public native boolean deinitialize(); 73 74 /** 75 * Enable discory for the NdefMessage and Transaction notification 76 */ 77 public native void enableDiscovery(int mode); 78 79 public native void disableDiscovery(); 80 81 public native int[] doGetSecureElementList(); 82 83 public native void doSelectSecureElement(int seID); 84 85 public native void doDeselectSecureElement(int seID); 86 87 public native int doGetLastError(); 88 89 public native void doSetProperties(int param, int value); 90 91 public native void doCancel(); 92 93 public native NativeLlcpConnectionlessSocket doCreateLlcpConnectionlessSocket(int nSap); 94 95 public native NativeLlcpServiceSocket doCreateLlcpServiceSocket(int nSap, String sn, int miu, 96 int rw, int linearBufferLength); 97 98 public native NativeLlcpSocket doCreateLlcpSocket(int sap, int miu, int rw, 99 int linearBufferLength); 100 101 public native boolean doCheckLlcp(); 102 103 public native boolean doActivateLlcp(); 104 105 106 /** 107 * Notifies Ndef Message (TODO: rename into notifyTargetDiscovered) 108 */ 109 private void notifyNdefMessageListeners(NativeNfcTag tag) { 110 mNfcService.sendMessage(NfcService.MSG_NDEF_TAG, tag); 111 } 112 113 /** 114 * Notifies transaction 115 */ 116 private void notifyTargetDeselected() { 117 mNfcService.sendMessage(NfcService.MSG_TARGET_DESELECTED, null); 118 } 119 120 /** 121 * Notifies transaction 122 */ 123 private void notifyTransactionListeners(byte[] aid) { 124 mNfcService.sendMessage(NfcService.MSG_CARD_EMULATION, aid); 125 } 126 127 /** 128 * Notifies P2P Device detected, to activate LLCP link 129 */ 130 private void notifyLlcpLinkActivation(NativeP2pDevice device) { 131 mNfcService.sendMessage(NfcService.MSG_LLCP_LINK_ACTIVATION, device); 132 } 133 134 /** 135 * Notifies P2P Device detected, to activate LLCP link 136 */ 137 private void notifyLlcpLinkDeactivated(NativeP2pDevice device) { 138 mNfcService.sendMessage(NfcService.MSG_LLCP_LINK_DEACTIVATED, device); 139 } 140 141 } 142