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/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* File : NativeNfcManager.java
* Original-Author : Trusted Logic S.A. (Sylvain Fonteneau)
* Created : 18-02-2010
*/
package com.trustedlogic.trustednfc.android.internal;
import android.annotation.SdkConstant;
import android.annotation.SdkConstant.SdkConstantType;
import android.content.Context;
import android.content.Intent;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import com.trustedlogic.trustednfc.android.NfcManager;
import com.trustedlogic.trustednfc.android.NdefMessage;
import com.trustedlogic.trustednfc.android.NfcTag;
/**
* Native interface to the NFC Manager functions {@hide}
*/
public class NativeNfcManager {
@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
public static final String INTERNAL_LLCP_LINK_STATE_CHANGED_EXTRA = "com.trustedlogic.trustednfc.android.extra.INTERNAL_LLCP_LINK_STATE";
@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
public static final String INTERNAL_LLCP_LINK_STATE_CHANGED_ACTION = "com.trustedlogic.trustednfc.android.action.INTERNAL_LLCP_LINK_STATE_CHANGED";
@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
public static final String INTERNAL_TARGET_DESELECTED_ACTION = "com.trustedlogic.trustednfc.android.action.INTERNAL_TARGET_DESELECTED";
/* Native structure */
private int mNative;
private Context mContext;
private Handler mNfcHandler;
private static final String TAG = "NativeNfcManager";
private static final int MSG_NDEF_TAG = 0;
private static final int MSG_CARD_EMULATION = 1;
private static final int MSG_LLCP_LINK_ACTIVATION = 2;
private static final int MSG_LLCP_LINK_DEACTIVATED = 3;
private static final int MSG_TARGET_DESELECTED = 4;
public NativeNfcManager(Context context) {
mNfcHandler = new NfcHandler();
mContext = context;
}
/**
* Initializes Native structure
*/
public native boolean initializeNativeStructure();
/**
* Initializes NFC stack.
*/
public native boolean initialize();
/**
* Deinitializes NFC stack.
*/
public native boolean deinitialize();
/**
* Enable discory for the NdefMessage and Transaction notification
*/
public native void enableDiscovery(int mode);
/**
* Disables an NFCManager mode of operation. Allows to disable tag reader,
* peer to peer initiator or target modes.
*
* @param mode discovery mode to enable. Must be one of the provided
* NFCManager.DISCOVERY_MODE_* constants.
*/
public native void disableDiscoveryMode(int mode);
public native int[] doGetSecureElementList();
public native void doSelectSecureElement(int seID);
public native void doDeselectSecureElement(int seID);
public native NativeP2pDevice doOpenP2pConnection(int timeout);
public native NativeNfcTag doOpenTagConnection(int timeout);
public native int doGetLastError();
public native void doSetProperties(int param, int value);
public native void doCancel();
public native NativeLlcpConnectionlessSocket doCreateLlcpConnectionlessSocket(int nSap);
public native NativeLlcpServiceSocket doCreateLlcpServiceSocket(int nSap, String sn, int miu,
int rw, int linearBufferLength);
public native NativeLlcpSocket doCreateLlcpSocket(int sap, int miu, int rw,
int linearBufferLength);
public native boolean doCheckLlcp();
public native boolean doActivateLlcp();
private class NfcHandler extends Handler {
@Override
public void handleMessage(Message msg) {
try {
switch (msg.what) {
case MSG_NDEF_TAG:
Log.d(TAG, "Checking for NDEF tag message");
NativeNfcTag tag = (NativeNfcTag) msg.obj;
if (tag.doConnect()) {
if (tag.checkNDEF()) {
byte[] buff = tag.doRead();
if (buff != null) {
NdefMessage msgNdef = new NdefMessage(buff);
if (msgNdef != null) {
/* Send broadcast ordered */
Intent NdefMessageIntent = new Intent();
NdefMessageIntent
.setAction(NfcManager.NDEF_TAG_DISCOVERED_ACTION);
NdefMessageIntent.putExtra(NfcManager.NDEF_MESSAGE_EXTRA,
msgNdef);
Log.d(TAG, "NDEF message found, broadcasting to applications");
mContext.sendOrderedBroadcast(NdefMessageIntent,
android.Manifest.permission.NFC_NOTIFY);
/* Disconnect tag */
tag.doAsyncDisconnect();
}
} else {
Log.w(TAG, "Unable to read NDEF message (tag empty or not well formated)");
/* Disconnect tag */
tag.doAsyncDisconnect();
}
} else {
Log.d(TAG, "Tag is *not* NDEF compliant");
/* Disconnect tag */
tag.doAsyncDisconnect();
}
} else {
/* Disconnect tag */
tag.doAsyncDisconnect();
}
break;
case MSG_CARD_EMULATION:
Log.d(TAG, "Card Emulation message");
byte[] aid = (byte[]) msg.obj;
/* Send broadcast ordered */
Intent TransactionIntent = new Intent();
TransactionIntent.setAction(NfcManager.TRANSACTION_DETECTED_ACTION);
TransactionIntent.putExtra(NfcManager.AID_EXTRA, aid);
Log.d(TAG, "Broadcasting Card Emulation event");
mContext.sendOrderedBroadcast(TransactionIntent,
android.Manifest.permission.NFC_NOTIFY);
break;
case MSG_LLCP_LINK_ACTIVATION:
NativeP2pDevice device = (NativeP2pDevice) msg.obj;
Log.d(TAG, "LLCP Activation message");
if (device.getMode() == NativeP2pDevice.MODE_P2P_TARGET) {
if (device.doConnect()) {
/* Check Llcp compliancy */
if (doCheckLlcp()) {
/* Activate Llcp Link */
if (doActivateLlcp()) {
Log.d(TAG, "Initiator Activate LLCP OK");
/* Broadcast Intent Link LLCP activated */
Intent LlcpLinkIntent = new Intent();
LlcpLinkIntent
.setAction(INTERNAL_LLCP_LINK_STATE_CHANGED_ACTION);
LlcpLinkIntent.putExtra(
INTERNAL_LLCP_LINK_STATE_CHANGED_EXTRA,
NfcManager.LLCP_LINK_STATE_ACTIVATED);
Log.d(TAG, "Broadcasting internal LLCP activation");
mContext.sendBroadcast(LlcpLinkIntent);
}
} else {
device.doDisconnect();
}
}
} else if (device.getMode() == NativeP2pDevice.MODE_P2P_INITIATOR) {
/* Check Llcp compliancy */
if (doCheckLlcp()) {
/* Activate Llcp Link */
if (doActivateLlcp()) {
Log.d(TAG, "Target Activate LLCP OK");
/* Broadcast Intent Link LLCP activated */
Intent LlcpLinkIntent = new Intent();
LlcpLinkIntent
.setAction(INTERNAL_LLCP_LINK_STATE_CHANGED_ACTION);
LlcpLinkIntent.putExtra(INTERNAL_LLCP_LINK_STATE_CHANGED_EXTRA,
NfcManager.LLCP_LINK_STATE_ACTIVATED);
Log.d(TAG, "Broadcasting internal LLCP activation");
mContext.sendBroadcast(LlcpLinkIntent);
}
}
}
break;
case MSG_LLCP_LINK_DEACTIVATED:
/* Broadcast Intent Link LLCP activated */
Log.d(TAG, "LLCP Link Deactivated message");
Intent LlcpLinkIntent = new Intent();
LlcpLinkIntent.setAction(NfcManager.LLCP_LINK_STATE_CHANGED_ACTION);
LlcpLinkIntent.putExtra(NfcManager.LLCP_LINK_STATE_CHANGED_EXTRA,
NfcManager.LLCP_LINK_STATE_DEACTIVATED);
Log.d(TAG, "Broadcasting LLCP deactivation");
mContext.sendOrderedBroadcast(LlcpLinkIntent,
android.Manifest.permission.NFC_LLCP);
break;
case MSG_TARGET_DESELECTED:
/* Broadcast Intent Target Deselected */
Log.d(TAG, "Target Deselected");
Intent TargetDeselectedIntent = new Intent();
TargetDeselectedIntent.setAction(INTERNAL_TARGET_DESELECTED_ACTION);
Log.d(TAG, "Broadcasting Intent");
mContext.sendOrderedBroadcast(TargetDeselectedIntent,
android.Manifest.permission.NFC_LLCP);
break;
default:
Log.e(TAG, "Unknown message received");
break;
}
} catch (Exception e) {
// Log, don't crash!
Log.e(TAG, "Exception in NfcHandler.handleMessage:", e);
}
}
};
/**
* Notifies Ndef Message
*/
private void notifyNdefMessageListeners(NativeNfcTag tag) {
Message msg = mNfcHandler.obtainMessage();
msg.what = MSG_NDEF_TAG;
msg.obj = tag;
mNfcHandler.sendMessage(msg);
}
/**
* Notifies transaction
*/
private void notifyTargetDeselected() {
Message msg = mNfcHandler.obtainMessage();
msg.what = MSG_TARGET_DESELECTED;
mNfcHandler.sendMessage(msg);
}
/**
* Notifies transaction
*/
private void notifyTransactionListeners(byte[] aid) {
Message msg = mNfcHandler.obtainMessage();
msg.what = MSG_CARD_EMULATION;
msg.obj = aid;
mNfcHandler.sendMessage(msg);
}
/**
* Notifies P2P Device detected, to activate LLCP link
*/
private void notifyLlcpLinkActivation(NativeP2pDevice device) {
Message msg = mNfcHandler.obtainMessage();
msg.what = MSG_LLCP_LINK_ACTIVATION;
msg.obj = device;
mNfcHandler.sendMessage(msg);
}
/**
* Notifies P2P Device detected, to activate LLCP link
*/
private void notifyLlcpLinkDeactivated() {
Message msg = mNfcHandler.obtainMessage();
msg.what = MSG_LLCP_LINK_DEACTIVATED;
mNfcHandler.sendMessage(msg);
}
}
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