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Merge "Merge branch gingerbread-nfc into gingerbread." into gingerbread

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This commit is contained in:
Nick Pelly
2010-12-05 14:46:29 -08:00
committed by Android (Google) Code Review
parent bd3dd73b36 16ec9c5bb5
commit d8c323321c
20 changed files with 1162 additions and 579 deletions
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3
Android.mk
View File

@@ -119,11 +119,11 @@ LOCAL_SRC_FILES += \
core/java/android/nfc/ILlcpConnectionlessSocket.aidl \
core/java/android/nfc/ILlcpServiceSocket.aidl \
core/java/android/nfc/ILlcpSocket.aidl \
core/java/android/nfc/INdefTag.aidl \
core/java/android/nfc/INfcAdapter.aidl \
core/java/android/nfc/INfcTag.aidl \
core/java/android/nfc/IP2pInitiator.aidl \
core/java/android/nfc/IP2pTarget.aidl \
core/java/android/nfc/INfcSecureElement.aidl \
core/java/android/os/IHardwareService.aidl \
core/java/android/os/IMessenger.aidl \
core/java/android/os/INetworkManagementService.aidl \
@@ -252,7 +252,6 @@ aidl_files := \
frameworks/base/core/java/android/nfc/NdefMessage.aidl \
frameworks/base/core/java/android/nfc/NdefRecord.aidl \
frameworks/base/core/java/android/nfc/Tag.aidl \
frameworks/base/core/java/android/nfc/NdefTag.aidl \
frameworks/base/core/java/android/os/Bundle.aidl \
frameworks/base/core/java/android/os/DropBoxManager.aidl \
frameworks/base/core/java/android/os/ParcelFileDescriptor.aidl \

1
CleanSpec.mk
View File

@@ -72,6 +72,7 @@ $(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/JAVA_LIBRARIES/framew
$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/JAVA_LIBRARIES/android_stubs_current_intermediates/src/com/trustedlogic)
$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/JAVA_LIBRARIES/framework_intermediates/src/core/java/com/trustedlogic)
$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/JAVA_LIBRARIES/android_stubs_current_intermediates/src/com/trustedlogic)
$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/JAVA_LIBRARIES/framework_intermediates/src/core/java/android/nfc/INdefTag.java)
# ************************************************
# NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST

4
core/java/android/nfc/INfcAdapter.aidl
View File

@@ -24,6 +24,7 @@ import android.nfc.ILlcpConnectionlessSocket;
import android.nfc.INfcTag;
import android.nfc.IP2pTarget;
import android.nfc.IP2pInitiator;
import android.nfc.INfcSecureElement;
/**
* @hide
@@ -36,9 +37,12 @@ interface INfcAdapter
INfcTag getNfcTagInterface();
IP2pTarget getP2pTargetInterface();
IP2pInitiator getP2pInitiatorInterface();
INfcSecureElement getNfcSecureElementInterface();
// NfcAdapter-class related methods
boolean isEnabled();
NdefMessage localGet();
void localSet(in NdefMessage message);
void openTagConnection(in Tag tag);
// Non-public methods

14
core/java/android/nfc/INdefTag.aidl → core/java/android/nfc/INfcSecureElement.aidl Normal file → Executable file
View File

@@ -16,13 +16,13 @@
package android.nfc;
import android.nfc.NdefMessage;
/**
* @hide
* {@hide}
*/
interface INdefTag
{
NdefMessage read(int nativeHandle);
boolean write(int nativeHandle, in NdefMessage msg);
interface INfcSecureElement {
int openSecureElementConnection();
int closeSecureElementConnection(int nativeHandle);
byte[] exchangeAPDU(int nativeHandle, in byte[] data);
int[] getSecureElementTechList(int nativeHandle);
byte[] getSecureElementUid(int nativeHandle);
}

2
core/java/android/nfc/INfcTag.aidl
View File

@@ -25,7 +25,7 @@ interface INfcTag
{
int close(int nativeHandle);
int connect(int nativeHandle);
String getType(int nativeHandle);
int[] getTechList(int nativeHandle);
byte[] getUid(int nativeHandle);
boolean isNdef(int nativeHandle);
boolean isPresent(int nativeHandle);

19
core/java/android/nfc/NdefTag.aidl
View File

@@ -1,19 +0,0 @@
/*
* 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.
*/
package android.nfc;
parcelable NdefTag;

245
core/java/android/nfc/NdefTag.java
View File

@@ -1,245 +0,0 @@
/*
* 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.
*/
package android.nfc;
import android.os.Parcel;
import android.os.Parcelable;
/**
* Represents a discovered tag that contains {@link NdefMessage}s (or a tag that can store them).
* In practice, a tag is a thing that an NFC-enabled device can communicate with. This
* class is a representation of such a tag and can contain the NDEF messages shared by the tag.
* <p>An NDEF tag can contain zero or more NDEF messages (represented by {@link NdefMessage}
* objects) in addition to the basic tag properties of UID and Type.
* <p>
* {@link NdefTag}s that have been initialized will usually contain a single {@link NdefMessage}
* (and that Message can contain multiple {@link NdefRecord}s). However it
* is possible for {@link NdefTag}s to contain multiple {@link NdefMessage}s.
* <p>{@link NfcAdapter#createNdefTagConnection createNdefTagConnection()} can be used to modify the
* contents of some tags.
* <p>This is an immutable data class. All properties are set at Tag discovery
* time and calls on this class will retrieve those read-only properties, and
* not cause any further RF activity or block. Note however that arrays passed to and
* returned by this class are *not* cloned, so be careful not to modify them.
* @hide
*/
public class NdefTag extends Tag implements Parcelable {
/**
* Target for NFC Forum Type 1 compliant tag.
* <p>This is based on Jewel/Topaz technology
*/
public static final String TARGET_TYPE_1 = "type_1";
/**
* Target for NFC Forum Type 2 compliant tag.
* <p>This is based on Mifare Ultralight technology.
*/
public static final String TARGET_TYPE_2 = "type_2";
/**
* Target for NFC Forum Type 3 compliant tag.
* <p>This is based on Felica technology.
*/
public static final String TARGET_TYPE_3 = "type_3";
/**
* Target for NFC Forum Type 4 compliant tag.
* <p>This is based on Mifare Desfire technology.
*/
public static final String TARGET_TYPE_4 = "type_4";
/**
* Target for NFC Forum Enabled: Mifare Classic tag.
* <p>This is not strictly a NFC Forum tag type, but is a common
* NDEF message container.
*/
public static final String TARGET_MIFARE_CLASSIC = "type_mifare_classic";
/**
* Any other target.
*/
public static final String TARGET_OTHER = "other";
private final String[] mNdefTargets;
private final NdefMessage[][] mMessages; // one NdefMessage[] per NDEF target
private NdefMessage[] mFlatMessages; // collapsed mMessages, built lazily, protected by (this)
/**
* Hidden constructor to be used by NFC service only.
* @hide
*/
public NdefTag(byte[] id, String[] rawTargets, byte[] pollBytes, byte[] activationBytes,
int serviceHandle, String[] ndefTargets, NdefMessage[][] messages) {
super(id, true, rawTargets, pollBytes, activationBytes, serviceHandle);
if (ndefTargets == null || messages == null) {
throw new IllegalArgumentException("ndefTargets or messages cannot be null");
}
if (ndefTargets.length != messages.length){
throw new IllegalArgumentException("ndefTargets and messages arrays must match");
}
for (NdefMessage[] ms : messages) {
if (ms == null) {
throw new IllegalArgumentException("messages elements cannot be null");
}
}
mNdefTargets = ndefTargets;
mMessages = messages;
}
/**
* Construct a mock NdefTag.
* <p>This is an application constructed tag, so NfcAdapter methods on this
* Tag such as {@link NfcAdapter#createRawTagConnection} will fail with
* {@link IllegalArgumentException} since it does not represent a physical Tag.
* <p>This constructor might be useful for mock testing.
* @param id The tag identifier, can be null
* @param rawTargets must not be null
* @param pollBytes can be null
* @param activationBytes can be null
* @param ndefTargets NDEF target array, such as {TARGET_TYPE_2}, cannot be null
* @param messages messages, one array per NDEF target, cannot be null
* @return freshly constructed NdefTag
*/
public static NdefTag createMockNdefTag(byte[] id, String[] rawTargets, byte[] pollBytes,
byte[] activationBytes, String[] ndefTargets, NdefMessage[][] messages) {
// set serviceHandle to 0 to indicate mock tag
return new NdefTag(id, rawTargets, pollBytes, activationBytes, 0, ndefTargets, messages);
}
/**
* Get all NDEF Messages.
* <p>
* This retrieves the NDEF Messages that were found on the Tag at discovery
* time. It does not cause any further RF activity, and does not block.
* <p>
* Most tags only contain a single NDEF message.
*
* @return NDEF Messages found at Tag discovery
*/
public NdefMessage[] getNdefMessages() {
// common-case optimization
if (mMessages.length == 1) {
return mMessages[0];
}
// return cached flat array
synchronized(this) {
if (mFlatMessages != null) {
return mFlatMessages;
}
// not cached - build a flat array
int sz = 0;
for (NdefMessage[] ms : mMessages) {
sz += ms.length;
}
mFlatMessages = new NdefMessage[sz];
int i = 0;
for (NdefMessage[] ms : mMessages) {
System.arraycopy(ms, 0, mFlatMessages, i, ms.length);
i += ms.length;
}
return mFlatMessages;
}
}
/**
* Get only the NDEF Messages from a single NDEF target on a tag.
* <p>
* This retrieves the NDEF Messages that were found on the Tag at discovery
* time. It does not cause any further RF activity, and does not block.
* <p>
* Most tags only contain a single NDEF message.
*
* @param target one of targets strings provided by getNdefTargets()
* @return NDEF Messages found at Tag discovery
*/
public NdefMessage[] getNdefMessages(String target) {
for (int i=0; i<mNdefTargets.length; i++) {
if (target.equals(mNdefTargets[i])) {
return mMessages[i];
}
}
throw new IllegalArgumentException("target (" + target + ") not found");
}
/**
* Return the NDEF targets on this Tag that support NDEF messages.
*
* @return
*/
public String[] getNdefTargets() {
return mNdefTargets;
}
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(Parcel dest, int flags) {
// Tag fields
dest.writeInt(mIsNdef ? 1 : 0);
writeBytesWithNull(dest, mId);
dest.writeInt(mRawTargets.length);
dest.writeStringArray(mRawTargets);
writeBytesWithNull(dest, mPollBytes);
writeBytesWithNull(dest, mActivationBytes);
dest.writeInt(mServiceHandle);
// NdefTag fields
dest.writeInt(mNdefTargets.length);
dest.writeStringArray(mNdefTargets);
dest.writeInt(mMessages.length);
for (NdefMessage[] ms : mMessages) {
dest.writeInt(ms.length);
dest.writeTypedArray(ms, flags);
}
}
public static final Parcelable.Creator<NdefTag> CREATOR =
new Parcelable.Creator<NdefTag>() {
public NdefTag createFromParcel(Parcel in) {
boolean isNdef = (in.readInt() == 1);
if (!isNdef) {
throw new IllegalArgumentException("Creating NdefTag from Tag parcel");
}
// Tag fields
byte[] id = readBytesWithNull(in);
String[] rawTargets = new String[in.readInt()];
in.readStringArray(rawTargets);
byte[] pollBytes = readBytesWithNull(in);
byte[] activationBytes = readBytesWithNull(in);
int serviceHandle = in.readInt();
// NdefTag fields
String[] ndefTargets = new String[in.readInt()];
in.readStringArray(ndefTargets);
NdefMessage[][] messages = new NdefMessage[in.readInt()][];
for (int i=0; i<messages.length; i++) {
messages[i] = new NdefMessage[in.readInt()];
in.readTypedArray(messages[i], NdefMessage.CREATOR);
}
return new NdefTag(id, rawTargets, pollBytes, activationBytes, serviceHandle,
ndefTargets, messages);
}
public NdefTag[] newArray(int size) {
return new NdefTag[size];
}
};
}

129
core/java/android/nfc/NfcAdapter.java
View File

@@ -1,25 +1,26 @@
/*
* 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.
* 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.
*/
package android.nfc;
import java.lang.UnsupportedOperationException;
import android.annotation.SdkConstant;
import android.annotation.SdkConstant.SdkConstantType;
import android.app.ActivityThread;
import android.content.Context;
import android.content.pm.IPackageManager;
import android.content.pm.PackageManager;
import android.nfc.INfcAdapter;
import android.os.IBinder;
import android.os.RemoteException;
import android.os.ServiceManager;
@@ -39,6 +40,12 @@ public final class NfcAdapter {
@SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
public static final String ACTION_TAG_DISCOVERED = "android.nfc.action.TAG_DISCOVERED";
/**
* Broadcast to only the activity that handles ACTION_TAG_DISCOVERED
* @hide
*/
public static final String ACTION_TAG_LEFT_FIELD = "android.nfc.action.TAG_LOST";
/**
* Mandatory Tag extra for the ACTION_TAG intents.
* @hide
@@ -169,6 +176,14 @@ public final class NfcAdapter {
mService = service;
}
/**
* Returns the binder interface to the service.
* @hide
*/
public INfcAdapter getService() {
return mService;
}
/**
* Helper to check if this device has FEATURE_NFC, but without using
* a context.
@@ -230,8 +245,11 @@ public final class NfcAdapter {
}
}
/** NFC service dead - attempt best effort recovery */
/*package*/ void attemptDeadServiceRecovery(Exception e) {
/**
* NFC service dead - attempt best effort recovery
* @hide
*/
public void attemptDeadServiceRecovery(Exception e) {
Log.e(TAG, "NFC service dead - attempting to recover", e);
INfcAdapter service = getServiceInterface();
if (service == null) {
@@ -301,16 +319,41 @@ public final class NfcAdapter {
}
/**
* Create a raw tag connection to the default Target
* Set the NDEF Message that this NFC adapter should appear as to Tag
* readers.
* <p>
* Any Tag reader can read the contents of the local tag when it is in
* proximity, without any further user confirmation.
* <p>
* The implementation of this method must either
* <ul>
* <li>act as a passive tag containing this NDEF message
* <li>provide the NDEF message on over LLCP to peer NFC adapters
* </ul>
* The NDEF message is preserved across reboot.
* <p>Requires {@link android.Manifest.permission#NFC} permission.
*
* @param message NDEF message to make public
* @hide
*/
public RawTagConnection createRawTagConnection(Tag tag) {
if (tag.mServiceHandle == 0) {
throw new IllegalArgumentException("mock tag cannot be used for connections");
}
public void setLocalNdefMessage(NdefMessage message) {
try {
return new RawTagConnection(this, tag);
mService.localSet(message);
} catch (RemoteException e) {
attemptDeadServiceRecovery(e);
}
}
/**
* Get the NDEF Message that this adapter appears as to Tag readers.
* <p>Requires {@link android.Manifest.permission#NFC} permission.
*
* @return NDEF Message that is publicly readable
* @hide
*/
public NdefMessage getLocalNdefMessage() {
try {
return mService.localGet();
} catch (RemoteException e) {
attemptDeadServiceRecovery(e);
return null;
@@ -318,52 +361,14 @@ public final class NfcAdapter {
}
/**
* Create a raw tag connection to the specified Target
* <p>Requires {@link android.Manifest.permission#NFC} permission.
* Create an Nfc Secure Element Connection
* @hide
*/
public RawTagConnection createRawTagConnection(Tag tag, String target) {
if (tag.mServiceHandle == 0) {
throw new IllegalArgumentException("mock tag cannot be used for connections");
}
public NfcSecureElement createNfcSecureElementConnection() {
try {
return new RawTagConnection(this, tag, target);
return new NfcSecureElement(mService.getNfcSecureElementInterface());
} catch (RemoteException e) {
attemptDeadServiceRecovery(e);
return null;
}
}
/**
* Create an NDEF tag connection to the default Target
* <p>Requires {@link android.Manifest.permission#NFC} permission.
* @hide
*/
public NdefTagConnection createNdefTagConnection(NdefTag tag) {
if (tag.mServiceHandle == 0) {
throw new IllegalArgumentException("mock tag cannot be used for connections");
}
try {
return new NdefTagConnection(this, tag);
} catch (RemoteException e) {
attemptDeadServiceRecovery(e);
return null;
}
}
/**
* Create an NDEF tag connection to the specified Target
* <p>Requires {@link android.Manifest.permission#NFC} permission.
* @hide
*/
public NdefTagConnection createNdefTagConnection(NdefTag tag, String target) {
if (tag.mServiceHandle == 0) {
throw new IllegalArgumentException("mock tag cannot be used for connections");
}
try {
return new NdefTagConnection(this, tag, target);
} catch (RemoteException e) {
attemptDeadServiceRecovery(e);
Log.e(TAG, "createNfcSecureElementConnection failed", e);
return null;
}
}

138
core/java/android/nfc/NfcSecureElement.java Executable file
View File

@@ -0,0 +1,138 @@
/*
* 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.
*/
package android.nfc;
import android.nfc.technology.TagTechnology;
import android.os.RemoteException;
import android.util.Log;
import java.io.IOException;
//import android.util.Log;
/**
* This class provides the primary API for managing all aspects Secure Element.
* Get an instance of this class by calling
* Context.getSystemService(Context.NFC_SERVICE).
* @hide
*/
public final class NfcSecureElement {
private static final String TAG = "NfcSecureElement";
private INfcSecureElement mService;
/**
* @hide
*/
public NfcSecureElement(INfcSecureElement mSecureElementService) {
mService = mSecureElementService;
}
public int openSecureElementConnection(String seType) throws IOException {
if (seType.equals("SmartMX")) {
try {
int handle = mService.openSecureElementConnection();
// Handle potential errors
if (handle != 0) {
return handle;
} else {
throw new IOException("SmartMX connection not allowed");
}
} catch (RemoteException e) {
Log.e(TAG, "RemoteException in openSecureElementConnection(): ", e);
return 0;
}
} else if (seType.equals("UICC")) {
return 0;
} else {
throw new IOException("Wrong Secure Element type");
}
}
public byte [] exchangeAPDU(int handle,byte [] data) throws IOException {
// Perform exchange APDU
try {
byte[] response = mService.exchangeAPDU(handle, data);
// Handle potential errors
if (response == null) {
throw new IOException("Exchange APDU failed");
}
return response;
} catch (RemoteException e) {
Log.e(TAG, "RemoteException in exchangeAPDU(): ", e);
return null;
}
}
public void closeSecureElementConnection(int handle) throws IOException {
try {
int status = mService.closeSecureElementConnection(handle);
// Handle potential errors
if (ErrorCodes.isError(status)) {
throw new IOException("Error during the conection close");
};
} catch (RemoteException e) {
Log.e(TAG, "RemoteException in closeSecureElement(): ", e);
}
}
/**
* Returns target type. constants.
*
* @return Secure Element technology type. The possible values are defined in
* {@link TagTechnology}
*
*/
public int[] getSecureElementTechList(int handle) throws IOException {
try {
return mService.getSecureElementTechList(handle);
} catch (RemoteException e) {
Log.e(TAG, "RemoteException in getType(): ", e);
return null;
}
}
/**
* Returns Secure Element UID.
*
* @return Secure Element UID.
*/
public byte[] getSecureElementUid(int handle) throws IOException {
byte[] uid = null;
try {
uid = mService.getSecureElementUid(handle);
// Handle potential errors
if (uid == null) {
throw new IOException("Get Secure Element UID failed");
}
return uid;
} catch (RemoteException e) {
Log.e(TAG, "RemoteException in getType(): ", e);
return null;
}
}
}

207
core/java/android/nfc/Tag.java
View File

@@ -16,8 +16,20 @@
package android.nfc;
import android.nfc.technology.IsoDep;
import android.nfc.technology.MifareClassic;
import android.nfc.technology.NfcV;
import android.nfc.technology.Ndef;
import android.nfc.technology.NfcA;
import android.nfc.technology.NfcB;
import android.nfc.technology.NfcF;
import android.nfc.technology.TagTechnology;
import android.os.Bundle;
import android.os.Parcel;
import android.os.Parcelable;
import android.os.RemoteException;
import java.util.Arrays;
/**
* Represents a (generic) discovered tag.
@@ -30,13 +42,13 @@ import android.os.Parcelable;
* {@link Tag} objects are passed to applications via the {@link NfcAdapter#EXTRA_TAG} extra
* in {@link NfcAdapter#ACTION_TAG_DISCOVERED} intents. A {@link Tag} object is immutable
* and represents the state of the tag at the time of discovery. It can be
* directly queried for its UID and Type, or used to create a {@link RawTagConnection}
* (with {@link NfcAdapter#createRawTagConnection createRawTagConnection()}).
* directly queried for its UID and Type, or used to create a {@link TagTechnology}
* (with {@link Tag#getTechnology(int)}).
* <p>
* A {@link Tag} can be used to create a {@link RawTagConnection} only while the tag is in
* A {@link Tag} can be used to create a {@link TagTechnology} only while the tag is in
* range. If it is removed and then returned to range, then the most recent
* {@link Tag} object (in {@link NfcAdapter#ACTION_TAG_DISCOVERED}) should be used to create a
* {@link RawTagConnection}.
* {@link TagTechnology}.
* <p>This is an immutable data class. All properties are set at Tag discovery
* time and calls on this class will retrieve those read-only properties, and
* not cause any further RF activity or block. Note however that arrays passed to and
@@ -44,78 +56,39 @@ import android.os.Parcelable;
* @hide
*/
public class Tag implements Parcelable {
/**
* ISO 14443-3A technology.
* <p>
* Includes Topaz (which is -3A compatible)
*/
public static final String TARGET_ISO_14443_3A = "iso14443_3a";
/**
* ISO 14443-3B technology.
*/
public static final String TARGET_ISO_14443_3B = "iso14443_3b";
/**
* ISO 14443-4 technology.
*/
public static final String TARGET_ISO_14443_4 = "iso14443_4";
/**
* ISO 15693 technology, commonly known as RFID.
*/
public static final String TARGET_ISO_15693 = "iso15693";
/**
* JIS X-6319-4 technology, commonly known as Felica.
*/
public static final String TARGET_JIS_X_6319_4 = "jis_x_6319_4";
/**
* Any other technology.
*/
public static final String TARGET_OTHER = "other";
/*package*/ final boolean mIsNdef;
/*package*/ final byte[] mId;
/*package*/ final String[] mRawTargets;
/*package*/ final byte[] mPollBytes;
/*package*/ final byte[] mActivationBytes;
/*package*/ final int[] mTechList;
/*package*/ final Bundle[] mTechExtras;
/*package*/ final int mServiceHandle; // for use by NFC service, 0 indicates a mock
/**
* Hidden constructor to be used by NFC service and internal classes.
* @hide
*/
public Tag(byte[] id, boolean isNdef, String[] rawTargets, byte[] pollBytes,
byte[] activationBytes, int serviceHandle) {
if (rawTargets == null) {
public Tag(byte[] id, int[] techList, Bundle[] techListExtras, int serviceHandle) {
if (techList == null) {
throw new IllegalArgumentException("rawTargets cannot be null");
}
mIsNdef = isNdef;
mId = id;
mRawTargets = rawTargets;
mPollBytes = pollBytes;
mActivationBytes = activationBytes;
mTechList = Arrays.copyOf(techList, techList.length);
// Ensure mTechExtras is as long as mTechList
mTechExtras = Arrays.copyOf(techListExtras, techList.length);
mServiceHandle = serviceHandle;
}
/**
* Construct a mock Tag.
* <p>This is an application constructed tag, so NfcAdapter methods on this
* Tag such as {@link NfcAdapter#createRawTagConnection} will fail with
* Tag such as {@link #getTechnology} may fail with
* {@link IllegalArgumentException} since it does not represent a physical Tag.
* <p>This constructor might be useful for mock testing.
* @param id The tag identifier, can be null
* @param rawTargets must not be null
* @param pollBytes can be null
* @param activationBytes can be null
* @param techList must not be null
* @return freshly constructed tag
*/
public static Tag createMockTag(byte[] id, String[] rawTargets, byte[] pollBytes,
byte[] activationBytes) {
public static Tag createMockTag(byte[] id, int[] techList, Bundle[] techListExtras) {
// set serviceHandle to 0 to indicate mock tag
return new Tag(id, false, rawTargets, pollBytes, activationBytes, 0);
return new Tag(id, techList, techListExtras, 0);
}
/**
@@ -126,16 +99,6 @@ public class Tag implements Parcelable {
return mServiceHandle;
}
/**
* Return the available targets that this NFC adapter can use to create
* a RawTagConnection.
*
* @return raw targets, will not be null
*/
public String[] getRawTargets() {
return mRawTargets;
}
/**
* Get the Tag Identifier (if it has one).
* <p>Tag ID is usually a serial number for the tag.
@@ -147,37 +110,64 @@ public class Tag implements Parcelable {
}
/**
* Get the low-level bytes returned by this Tag at poll-time.
* <p>These can be used to help with advanced identification of a Tag.
* <p>The meaning of these bytes depends on the Tag technology.
* <p>ISO14443-3A: ATQA/SENS_RES
* <p>ISO14443-3B: Application data (4 bytes) and Protocol Info (3 bytes) from ATQB/SENSB_RES
* <p>JIS_X_6319_4: PAD0 (2 byte), PAD1 (2 byte), MRTI(2 byte), PAD2 (1 byte), RC (2 byte)
* <p>ISO15693: response flags (1 byte), DSFID (1 byte)
* from SENSF_RES
*
* @return poll bytes, or null if they do not exist for this Tag technology
* @hide
* Returns technologies present in the tag that this implementation understands,
* or a zero length array if there are no supported technologies on this tag.
*/
public byte[] getPollBytes() {
return mPollBytes;
public int[] getTechnologyList() {
return Arrays.copyOf(mTechList, mTechList.length);
}
/**
* Get the low-level bytes returned by this Tag at activation-time.
* <p>These can be used to help with advanced identification of a Tag.
* <p>The meaning of these bytes depends on the Tag technology.
* <p>ISO14443-3A: SAK/SEL_RES
* <p>ISO14443-3B: null
* <p>ISO14443-3A & ISO14443-4: SAK/SEL_RES, historical bytes from ATS <TODO: confirm>
* <p>ISO14443-3B & ISO14443-4: ATTRIB response
* <p>JIS_X_6319_4: null
* <p>ISO15693: response flags (1 byte), DSFID (1 byte): null
* @return activation bytes, or null if they do not exist for this Tag technology
* @hide
* Returns the technology, or null if not present
*/
public byte[] getActivationBytes() {
return mActivationBytes;
public TagTechnology getTechnology(int tech) {
int pos = -1;
for (int idx = 0; idx < mTechList.length; idx++) {
if (mTechList[idx] == tech) {
pos = idx;
break;
}
}
if (pos < 0) {
return null;
}
Bundle extras = mTechExtras[pos];
NfcAdapter adapter = NfcAdapter.getDefaultAdapter();
try {
switch (tech) {
case TagTechnology.NFC_A: {
return new NfcA(adapter, this, extras);
}
case TagTechnology.NFC_B: {
return new NfcB(adapter, this, extras);
}
case TagTechnology.ISO_DEP: {
return new IsoDep(adapter, this, extras);
}
case TagTechnology.NFC_V: {
return new NfcV(adapter, this, extras);
}
case TagTechnology.TYPE_1:
case TagTechnology.TYPE_2:
case TagTechnology.TYPE_3:
case TagTechnology.TYPE_4: {
return new Ndef(adapter, this, tech, extras);
}
case TagTechnology.NFC_F: {
return new NfcF(adapter, this, extras);
}
case TagTechnology.MIFARE_CLASSIC: {
return new MifareClassic(adapter, this, extras);
}
default: {
throw new UnsupportedOperationException("Tech " + tech + " not supported");
}
}
} catch (RemoteException e) {
return null;
}
}
@Override
@@ -185,13 +175,9 @@ public class Tag implements Parcelable {
StringBuilder sb = new StringBuilder("TAG ")
.append("uid = ")
.append(mId)
.append(" poll ")
.append(mPollBytes)
.append(" activation ")
.append(mActivationBytes)
.append(" Raw [");
for (String s : mRawTargets) {
sb.append(s)
.append(" Tech [");
for (int i : mTechList) {
sb.append(i)
.append(", ");
}
return sb.toString();
@@ -221,37 +207,32 @@ public class Tag implements Parcelable {
return 0;
}
@Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeInt(mIsNdef ? 1 : 0);
writeBytesWithNull(dest, mId);
dest.writeInt(mRawTargets.length);
dest.writeStringArray(mRawTargets);
writeBytesWithNull(dest, mPollBytes);
writeBytesWithNull(dest, mActivationBytes);
dest.writeInt(mTechList.length);
dest.writeIntArray(mTechList);
dest.writeTypedArray(mTechExtras, 0);
dest.writeInt(mServiceHandle);
}
public static final Parcelable.Creator<Tag> CREATOR =
new Parcelable.Creator<Tag>() {
@Override
public Tag createFromParcel(Parcel in) {
boolean isNdef = (in.readInt() == 1);
if (isNdef) {
throw new IllegalArgumentException("Creating Tag from NdefTag parcel");
}
// Tag fields
byte[] id = Tag.readBytesWithNull(in);
String[] rawTargets = new String[in.readInt()];
in.readStringArray(rawTargets);
byte[] pollBytes = Tag.readBytesWithNull(in);
byte[] activationBytes = Tag.readBytesWithNull(in);
int[] techList = new int[in.readInt()];
in.readIntArray(techList);
Bundle[] techExtras = in.createTypedArray(Bundle.CREATOR);
int serviceHandle = in.readInt();
return new Tag(id, isNdef, rawTargets, pollBytes, activationBytes, serviceHandle);
return new Tag(id, techList, techExtras, serviceHandle);
}
@Override
public Tag[] newArray(int size) {
return new Tag[size];
}
};
}
}

72
core/java/android/nfc/RawTagConnection.java → core/java/android/nfc/technology/BasicTagTechnology.java
View File

@@ -14,31 +14,25 @@
* limitations under the License.
*/
package android.nfc;
package android.nfc.technology;
import java.io.IOException;
import android.nfc.INfcAdapter;
import android.nfc.INfcTag;
import android.nfc.NfcAdapter;
import android.nfc.Tag;
import android.os.RemoteException;
import android.util.Log;
/**
* A low-level connection to a {@link Tag} target.
* <p>You can acquire this kind of connection with {@link NfcAdapter#createRawTagConnection
* createRawTagConnection()}. Use the connection to send and receive data with {@link #transceive
* transceive()}.
* <p>
* Applications must implement their own protocol stack on top of {@link #transceive transceive()}.
*
* <p class="note"><strong>Note:</strong>
* Use of this class requires the {@link android.Manifest.permission#NFC}
* permission.
* @hide
* A base class for tag technologies that are built on top of transceive().
*/
public class RawTagConnection {
/* package */ abstract class BasicTagTechnology implements TagTechnology {
/*package*/ final Tag mTag;
/*package*/ boolean mIsConnected;
/*package*/ String mSelectedTarget;
/*package*/ int mSelectedTechnology;
private final NfcAdapter mAdapter;
// Following fields are final after construction, except for
@@ -49,30 +43,40 @@ public class RawTagConnection {
private static final String TAG = "NFC";
/*package*/ RawTagConnection(NfcAdapter adapter, Tag tag, String target) throws RemoteException {
String[] targets = tag.getRawTargets();
/**
* @hide
*/
public BasicTagTechnology(NfcAdapter adapter, Tag tag, int tech) throws RemoteException {
int[] techList = tag.getTechnologyList();
int i;
// Check target validity
for (i=0;i<targets.length;i++) {
if (target.equals(targets[i])) {
for (i = 0; i < techList.length; i++) {
if (tech == techList[i]) {
break;
}
}
if (i >= targets.length) {
// Target not found
throw new IllegalArgumentException();
if (i >= techList.length) {
// Technology not found
throw new IllegalArgumentException("Technology " + tech + " not present on tag " + tag);
}
mAdapter = adapter;
mService = mAdapter.mService;
mTagService = mService.getNfcTagInterface();
mService = mAdapter.getService();
try {
mTagService = mService.getNfcTagInterface();
} catch (RemoteException e) {
attemptDeadServiceRecovery(e);
}
mTag = tag;
mSelectedTarget = target;
mSelectedTechnology = tech;
}
/*package*/ RawTagConnection(NfcAdapter adapter, Tag tag) throws RemoteException {
this(adapter, tag, tag.getRawTargets()[0]);
/**
* @hide
*/
public BasicTagTechnology(NfcAdapter adapter, Tag tag) throws RemoteException {
this(adapter, tag, tag.getTechnologyList()[0]);
}
/** NFC service dead - attempt best effort recovery */
@@ -80,7 +84,7 @@ public class RawTagConnection {
mAdapter.attemptDeadServiceRecovery(e);
/* assigning to mService is not thread-safe, but this is best-effort code
* and on a well-behaved system should never happen */
mService = mAdapter.mService;
mService = mAdapter.getService();
try {
mTagService = mService.getNfcTagInterface();
} catch (RemoteException e2) {
@@ -92,6 +96,7 @@ public class RawTagConnection {
* Get the {@link Tag} this connection is associated with.
* <p>Requires {@link android.Manifest.permission#NFC} permission.
*/
@Override
public Tag getTag() {
return mTag;
}
@@ -99,8 +104,9 @@ public class RawTagConnection {
/**
* <p>Requires {@link android.Manifest.permission#NFC} permission.
*/
public String getTagTarget() {
return mSelectedTarget;
@Override
public int getTechnologyId() {
return mSelectedTechnology;
}
/**
@@ -119,7 +125,7 @@ public class RawTagConnection {
}
try {
return mTagService.isPresent(mTag.mServiceHandle);
return mTagService.isPresent(mTag.getServiceHandle());
} catch (RemoteException e) {
attemptDeadServiceRecovery(e);
return false;
@@ -136,6 +142,7 @@ public class RawTagConnection {
* <p>Requires {@link android.Manifest.permission#NFC} permission.
* @throws IOException if the target is lost, or connect canceled
*/
@Override
public void connect() throws IOException {
//TODO(nxp): enforce exclusivity
mIsConnected = true;
@@ -151,10 +158,11 @@ public class RawTagConnection {
* calls to {@link #transceive transceive()} or {@link #connect} will fail.
* <p>Requires {@link android.Manifest.permission#NFC} permission.
*/
@Override
public void close() {
mIsConnected = false;
try {
mTagService.close(mTag.mServiceHandle);
mTagService.close(mTag.getServiceHandle());
} catch (RemoteException e) {
attemptDeadServiceRecovery(e);
}
@@ -173,7 +181,7 @@ public class RawTagConnection {
*/
public byte[] transceive(byte[] data) throws IOException {
try {
byte[] response = mTagService.transceive(mTag.mServiceHandle, data);
byte[] response = mTagService.transceive(mTag.getServiceHandle(), data);
if (response == null) {
throw new IOException("transcieve failed");
}

80
core/java/android/nfc/technology/IsoDep.java Normal file
View File

@@ -0,0 +1,80 @@
/*
* 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.
*/
package android.nfc.technology;
import android.nfc.NfcAdapter;
import android.nfc.Tag;
import android.os.Bundle;
import android.os.RemoteException;
import java.io.IOException;
/**
* A low-level connection to a {@link Tag} using the ISO-DEP technology, also known as
* ISO1443-4.
*
* <p>You can acquire this kind of connection with {@link Tag#getTechnology(int)}.
* Use this class to send and receive data with {@link #transceive transceive()}.
*
* <p>Applications must implement their own protocol stack on top of
* {@link #transceive transceive()}.
*
* <p class="note"><strong>Note:</strong>
* Use of this class requires the {@link android.Manifest.permission#NFC}
* permission.
*/
public final class IsoDep extends BasicTagTechnology {
/** @hide */
public static final String EXTRA_ATTRIB = "attrib";
/** @hide */
public static final String EXTRA_HIST_BYTES = "histbytes";
private byte[] mAttrib = null;
private byte[] mHistBytes = null;
public IsoDep(NfcAdapter adapter, Tag tag, Bundle extras)
throws RemoteException {
super(adapter, tag, TagTechnology.ISO_DEP);
if (extras != null) {
mAttrib = extras.getByteArray(EXTRA_ATTRIB);
mHistBytes = extras.getByteArray(EXTRA_HIST_BYTES);
}
}
/**
* 3A only
*/
public byte[] getHistoricalBytes() { return mHistBytes; }
/**
* 3B only
*/
public byte[] getAttrib() { return mAttrib; }
/**
* Attempts to select the given application on the tag. Note that this only works
* if the tag supports ISO7816-4, which not all IsoDep tags support. If the tag doesn't
* support ISO7816-4 this will throw {@link UnsupportedOperationException}.
*
* This method requires that you call {@link #connect} before calling it.
*
* @throws IOException, UnsupportedOperationException
*/
public void selectAid(byte[] aid) throws IOException, UnsupportedOperationException {
throw new UnsupportedOperationException();
}
}

291
core/java/android/nfc/technology/MifareClassic.java Normal file
View File

@@ -0,0 +1,291 @@
/*
* 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.
*/
package android.nfc.technology;
import android.nfc.NfcAdapter;
import android.nfc.Tag;
import android.os.Bundle;
import android.os.RemoteException;
import java.io.IOException;
/**
* Concrete class for TagTechnology.MIFARE_CLASSIC
*
* Mifare classic has n sectors, with varying sizes, although
* they are at least the same pattern for any one mifare classic
* product. Each sector has two keys. Authentication with the correct
* key is needed before access to any sector.
*
* Each sector has k blocks.
* Block size is constant across the whole mifare classic family.
*/
public final class MifareClassic extends BasicTagTechnology {
/**
* The well-known, default factory MIFARE read key.
* Use this key to effectively make the payload in this sector
* public.
*/
public static final byte[] DEFAULT_KEY_FACTORY =
{(byte)0xFF,(byte)0xFF,(byte)0xFF,(byte)0xFF,(byte)0xFF,(byte)0xFF};
public static final byte[] DEFAULT_KEY_ZERO =
{(byte)0x00,(byte)0x00,(byte)0x00,(byte)0x00,(byte)0x00,(byte)0x00};
/**
* The well-known, default Mifare Application Directory read key.
*/
public static final byte[] DEFAULT_KEY_MAD =
{(byte)0xA0,(byte)0xA1,(byte)0xA2,(byte)0xA3,(byte)0xA4,(byte)0xA5};
/**
* The well-known, default read key for NDEF data on a Mifare Classic
*/
public static final byte[] DEFAULT_KEY_NFC_FORUM =
{(byte)0xD3,(byte)0xF7,(byte)0xD3,(byte)0xF7,(byte)0xD3,(byte)0xF7};
public static final int TYPE_CLASSIC = 0;
public static final int TYPE_PLUS = 1;
public static final int TYPE_PRO = 2;
public static final int TYPE_DESFIRE = 3;
public static final int TYPE_ULTRALIGHT = 4;
public static final int TYPE_UNKNOWN = 5;
public static final int SIZE_1K = 1024;
public static final int SIZE_2K = 2048;
public static final int SIZE_4K = 4096;
public static final int SIZE_MINI = 320;
public static final int SIZE_UNKNOWN = 0;
private boolean mIsEmulated;
private int mType;
private int mSize;
public MifareClassic(NfcAdapter adapter, Tag tag, Bundle extras) throws RemoteException {
super(adapter, tag, TagTechnology.MIFARE_CLASSIC);
// Check if this could actually be a Mifare
NfcA a = (NfcA) tag.getTechnology(TagTechnology.NFC_A);
//short[] ATQA = getATQA(tag);
mIsEmulated = false;
mType = TYPE_UNKNOWN;
mSize = SIZE_UNKNOWN;
switch (a.getSak()) {
case 0x00:
// could be UL or UL-C
mType = TYPE_ULTRALIGHT;
break;
case 0x08:
// Type == classic
// Size = 1K
mType = TYPE_CLASSIC;
mSize = SIZE_1K;
break;
case 0x09:
// Type == classic mini
// Size == ?
mType = TYPE_CLASSIC;
mSize = SIZE_MINI;
break;
case 0x10:
// Type == MF+
// Size == 2K
// SecLevel = SL2
mType = TYPE_PLUS;
mSize = SIZE_2K;
break;
case 0x11:
// Type == MF+
// Size == 4K
// Seclevel = SL2
mType = TYPE_PLUS;
mSize = SIZE_4K;
break;
case 0x18:
// Type == classic
// Size == 4k
mType = TYPE_CLASSIC;
mSize = SIZE_4K;
break;
case 0x20:
// TODO this really should be a short, not byte
if (a.getAtqa()[0] == 0x03) {
// Type == DESFIRE
mType = TYPE_DESFIRE;
} else {
// Type == MF+
// SL = SL3
mType = TYPE_PLUS;
mSize = SIZE_UNKNOWN;
}
break;
case 0x28:
// Type == MF Classic
// Size == 1K
// Emulated == true
mType = TYPE_CLASSIC;
mSize = SIZE_1K;
mIsEmulated = true;
break;
case 0x38:
// Type == MF Classic
// Size == 4K
// Emulated == true
mType = TYPE_CLASSIC;
mSize = SIZE_4K;
mIsEmulated = true;
break;
case 0x88:
// Type == MF Classic
// Size == 1K
// NXP-tag: false
mType = TYPE_CLASSIC;
mSize = SIZE_1K;
break;
case 0x98:
case 0xB8:
// Type == MF Pro
// Size == 4K
mType = TYPE_PRO;
mSize = SIZE_4K;
break;
default:
// Unknown, not MIFARE
break;
}
}
// Immutable data known at discovery time
public int getSize() {
return mSize;
}
public int getType() {
return mType;
}
public boolean isEmulated() {
return mIsEmulated;
}
public int getSectorCount() {
switch (mSize) {
case SIZE_1K: {
return 16;
}
case SIZE_2K: {
return 32;
}
case SIZE_4K: {
return 40;
}
case SIZE_MINI: {
return 5;
}
default: {
return 0;
}
}
}
public int getSectorSize(int sector) {
return getBlockCount(sector) * 16;
}
public int getBlockCount(int sector) {
if (sector >= getSectorCount()) {
throw new IllegalArgumentException("this card only has " + getSectorCount() +
" sectors");
}
if (sector <= 32) {
return 4;
} else {
return 16;
}
}
private byte firstBlockInSector(int sector) {
if (sector < 32) {
return (byte) ((sector * 4) & 0xff);
} else {
return (byte) ((32 * 4 + ((sector - 32) * 16)) & 0xff);
}
}
// Methods that require connect()
/**
* Authenticate for a given sector.
*/
public boolean authenticateSector(int sector, byte[] key, boolean keyA) {
byte[] cmd = new byte[12];
// First byte is the command
if (keyA) {
cmd[0] = 0x60; // phHal_eMifareAuthentA
} else {
cmd[0] = 0x61; // phHal_eMifareAuthentB
}
// Second byte is block address
cmd[1] = firstBlockInSector(sector);
// Next 4 bytes are last 4 bytes of UID
byte[] uid = getTag().getId();
System.arraycopy(uid, uid.length - 4, cmd, 2, 4);
// Next 6 bytes are key
System.arraycopy(key, 0, cmd, 6, 6);
try {
if ((transceive(cmd) != null)) {
return true;
}
} catch (IOException e) {
// No need to deal with, will return false anyway
}
return false;
}
/**
* Sector indexing starts at 0.
* Block indexing starts at 0, and resets in each sector.
* @throws IOException
*/
public byte[] readBlock(int sector, int block) throws IOException {
byte addr = (byte) ((firstBlockInSector(sector) + block) & 0xff);
byte[] blockread_cmd = { 0x30, addr }; // phHal_eMifareRead
// TODO deal with authentication problems
return transceive(blockread_cmd);
}
// public byte[] readSector(int sector);
//TODO: define an enumeration for access control settings
// public int readSectorAccessControl(int sector);
/**
* @throws IOException
* @throws NotAuthenticatedException
*/
/*
public void writeBlock(int block, byte[] data);
public void writeSector(int block, byte[] sector);
public void writeSectorAccessControl(int sector, int access);
public void increment(int block);
public void decrement(int block);
*/
}

195
core/java/android/nfc/NdefTagConnection.java → core/java/android/nfc/technology/Ndef.java
View File

@@ -14,77 +14,54 @@
* limitations under the License.
*/
package android.nfc;
package android.nfc.technology;
import android.nfc.ErrorCodes;
import android.nfc.FormatException;
import android.nfc.NdefMessage;
import android.nfc.NfcAdapter;
import android.nfc.Tag;
import android.os.Bundle;
import android.os.RemoteException;
import java.io.IOException;
import android.os.RemoteException;
import android.util.Log;
/**
* A connection to an NDEF target on an {@link NdefTag}.
* <p>You can acquire this kind of connection with {@link NfcAdapter#createNdefTagConnection
* createNdefTagConnection()}. Use the connection to read or write {@link NdefMessage}s.
* A high-level connection to a {@link Tag} using one of the NFC type 1, 2, 3, or 4 technologies
* to interact with NDEF data. MiFare Classic cards that present NDEF data may also be used
* via this class. To determine the exact technology being used call {@link #getTechnologyId()}
*
* <p>You can acquire this kind of connection with {@link Tag#getTechnology(int)}.
*
* <p class="note"><strong>Note:</strong>
* Use of this class requires the {@link android.Manifest.permission#NFC}
* permission.
* @hide
*/
public class NdefTagConnection extends RawTagConnection {
public final class Ndef extends BasicTagTechnology {
public static final int NDEF_MODE_READ_ONCE = 1;
public static final int NDEF_MODE_READ_ONLY = 2;
public static final int NDEF_MODE_WRITE_ONCE = 3;
public static final int NDEF_MODE_WRITE_MANY = 4;
public static final int NDEF_MODE_UNKNOWN = 5;
private static final String TAG = "NFC";
/**
* Internal constructor, to be used by NfcAdapter
* @hide
*/
/* package private */ NdefTagConnection(NfcAdapter adapter, NdefTag tag, String target) throws RemoteException {
super(adapter, tag);
String[] targets = tag.getNdefTargets();
int i;
// Check target validity
for (i=0; i<targets.length; i++) {
if (target.equals(targets[i])) {
break;
}
}
if (i >= targets.length) {
// Target not found
throw new IllegalArgumentException();
}
public Ndef(NfcAdapter adapter, Tag tag, int tech, Bundle extras) throws RemoteException {
super(adapter, tag, tech);
}
/**
* Internal constructor, to be used by NfcAdapter
* @hide
* Get the primary NDEF message on this tag. This data is read at discovery time
* and does not require a connection.
*/
/* package private */ NdefTagConnection(NfcAdapter adapter, NdefTag tag) throws RemoteException {
this(adapter, tag, tag.getNdefTargets()[0]);
}
/**
* Read NDEF message(s).
* This will always return the most up to date payload, and can block.
* It can be canceled with {@link RawTagConnection#close}.
* Most NDEF tags will contain just one NDEF message.
* <p>Requires {@link android.Manifest.permission#NFC} permission.
* @throws FormatException if the tag is not NDEF formatted
* @throws IOException if the target is lost or connection closed
* @throws FormatException
*/
public NdefMessage[] readNdefMessages() throws IOException, FormatException {
//TODO(nxp): do not use getLastError(), it is racy
public NdefMessage getNdefMessage() throws IOException, FormatException {
try {
NdefMessage[] msgArray = new NdefMessage[1];
NdefMessage msg = mTagService.read(mTag.mServiceHandle);
int serviceHandle = mTag.getServiceHandle();
NdefMessage msg = mTagService.read(serviceHandle);
if (msg == null) {
int errorCode = mTagService.getLastError(mTag.mServiceHandle);
int errorCode = mTagService.getLastError(serviceHandle);
switch (errorCode) {
case ErrorCodes.ERROR_IO:
throw new IOException();
@@ -95,8 +72,7 @@ public class NdefTagConnection extends RawTagConnection {
throw new IOException();
}
}
msgArray[0] = msg;
return msgArray;
return msg;
} catch (RemoteException e) {
attemptDeadServiceRecovery(e);
return null;
@@ -104,25 +80,56 @@ public class NdefTagConnection extends RawTagConnection {
}
/**
* Attempt to write an NDEF message to a tag.
* This method will block until the data is written. It can be canceled
* with {@link RawTagConnection#close}.
* Many tags are write-once, so use this method carefully.
* Specification allows for multiple NDEF messages per NDEF tag, but it is
* encourage to only write one message, this so API only takes a single
* message. Use {@link NdefRecord} to write several records to a single tag.
* For write-many tags, use {@link #makeReadOnly} after this method to attempt
* to prevent further modification. For write-once tags this is not
* necessary.
* <p>Requires {@link android.Manifest.permission#NFC} permission.
*
* @throws FormatException if the tag is not suitable for NDEF messages
* @throws IOException if the target is lost or connection closed or the
* write failed
* Get optional extra NDEF messages.
* Some tags may contain extra NDEF messages, but not all
* implementations will be able to read them.
*/
public void writeNdefMessage(NdefMessage message) throws IOException, FormatException {
public NdefMessage[] getExtraNdefMessage() throws IOException, FormatException {
throw new UnsupportedOperationException();
}
/**
* Get maximum NDEF message size in bytes
*/
public int getSize() {
throw new UnsupportedOperationException();
}
/**
* Read/Write mode hint.
* Provides a hint if further reads or writes are likely to succeed.
* <p>Requires {@link android.Manifest.permission#NFC} permission.
* @return one of NDEF_MODE
* @throws IOException if the target is lost or connection closed
*/
public int getModeHint() throws IOException {
try {
int errorCode = mTagService.write(mTag.mServiceHandle, message);
int result = mTagService.getModeHint(mTag.getServiceHandle());
if (ErrorCodes.isError(result)) {
switch (result) {
case ErrorCodes.ERROR_IO:
throw new IOException();
default:
// Should not happen
throw new IOException();
}
}
return result;
} catch (RemoteException e) {
attemptDeadServiceRecovery(e);
return NDEF_MODE_UNKNOWN;
}
}
// Methods that require connect()
/**
* Overwrite the primary NDEF message
* @throws IOException
*/
public void writeNdefMessage(NdefMessage msg) throws IOException, FormatException {
try {
int errorCode = mTagService.write(mTag.getServiceHandle(), msg);
switch (errorCode) {
case ErrorCodes.SUCCESS:
break;
@@ -140,16 +147,26 @@ public class NdefTagConnection extends RawTagConnection {
}
/**
* Attempts to make the NDEF data in this tag read-only.
* This method will block until the action is complete. It can be canceled
* with {@link RawTagConnection#close}.
* <p>Requires {@link android.Manifest.permission#NFC} permission.
* @return true if the tag is now read-only
* @throws IOException if the target is lost, or connection closed
* Attempt to write extra NDEF messages.
* Implementations may be able to write extra NDEF
* message after the first primary message, but it is not
* guaranteed. Even if it can be written, other implementations
* may not be able to read NDEF messages after the primary message.
* It is recommended to use additional NDEF records instead.
*
* @throws IOException
*/
public boolean makeReadOnly() throws IOException {
public void writeExtraNdefMessage(int i, NdefMessage msg) throws IOException, FormatException {
throw new UnsupportedOperationException();
}
/**
* Set the CC field to indicate this tag is read-only
* @throws IOException
*/
public boolean makeReadonly() throws IOException {
try {
int errorCode = mTagService.makeReadOnly(mTag.mServiceHandle);
int errorCode = mTagService.makeReadOnly(mTag.getServiceHandle());
switch (errorCode) {
case ErrorCodes.SUCCESS:
return true;
@@ -168,29 +185,11 @@ public class NdefTagConnection extends RawTagConnection {
}
/**
* Read/Write mode hint.
* Provides a hint if further reads or writes are likely to succeed.
* <p>Requires {@link android.Manifest.permission#NFC} permission.
* @return one of NDEF_MODE
* @throws IOException if the target is lost or connection closed
* Attempt to use tag specific technology to really make
* the tag read-only
* For NFC Forum Type 1 and 2 only.
*/
public int getModeHint() throws IOException {
try {
int result = mTagService.getModeHint(mTag.mServiceHandle);
if (ErrorCodes.isError(result)) {
switch (result) {
case ErrorCodes.ERROR_IO:
throw new IOException();
default:
// Should not happen
throw new IOException();
}
}
return result;
} catch (RemoteException e) {
attemptDeadServiceRecovery(e);
return NDEF_MODE_UNKNOWN;
}
public void makeLowLevelReadonly() {
throw new UnsupportedOperationException();
}
}
}

66
core/java/android/nfc/technology/NfcA.java Normal file
View File

@@ -0,0 +1,66 @@
/*
* 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.
*/
package android.nfc.technology;
import android.nfc.NfcAdapter;
import android.nfc.Tag;
import android.os.Bundle;
import android.os.RemoteException;
/**
* A low-level connection to a {@link Tag} using the NFC-A technology, also known as
* ISO1443-3A.
*
* <p>You can acquire this kind of connection with {@link Tag#getTechnology(int)}.
* Use this class to send and receive data with {@link #transceive transceive()}.
*
* <p>Applications must implement their own protocol stack on top of
* {@link #transceive transceive()}.
*
* <p class="note"><strong>Note:</strong>
* Use of this class requires the {@link android.Manifest.permission#NFC}
* permission.
*/
public final class NfcA extends BasicTagTechnology {
/** @hide */
public static final String EXTRA_SAK = "sak";
/** @hide */
public static final String EXTRA_ATQA = "atqa";
private short mSak;
private byte[] mAtqa;
public NfcA(NfcAdapter adapter, Tag tag, Bundle extras) throws RemoteException {
super(adapter, tag, TagTechnology.NFC_A);
mSak = extras.getShort(EXTRA_SAK);
mAtqa = extras.getByteArray(EXTRA_ATQA);
}
/**
* Returns the ATQA/SENS_RES bytes discovered at tag discovery.
*/
public byte[] getAtqa() {
return mAtqa;
}
/**
* Returns the SAK/SEL_RES discovered at tag discovery.
*/
public short getSak() {
return mSak;
}
}

55
core/java/android/nfc/technology/NfcB.java Normal file
View File

@@ -0,0 +1,55 @@
/*
* 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.
*/
package android.nfc.technology;
import android.nfc.NfcAdapter;
import android.nfc.Tag;
import android.os.Bundle;
import android.os.RemoteException;
/**
* A low-level connection to a {@link Tag} using the NFC-B technology, also known as
* ISO1443-3B.
*
* <p>You can acquire this kind of connection with {@link Tag#getTechnology(int)}.
* Use this class to send and receive data with {@link #transceive transceive()}.
*
* <p>Applications must implement their own protocol stack on top of
* {@link #transceive transceive()}.
*
* <p class="note"><strong>Note:</strong>
* Use of this class requires the {@link android.Manifest.permission#NFC}
* permission.
*/
public final class NfcB extends BasicTagTechnology {
/** @hide */
public static final String EXTRA_ATQB = "atqb";
private byte[] mAtqb;
public NfcB(NfcAdapter adapter, Tag tag, Bundle extras)
throws RemoteException {
super(adapter, tag, TagTechnology.NFC_B);
}
/**
* Returns the ATQB/SENSB_RES bytes discovered at tag discovery.
*/
public byte[] getAtqb() {
return mAtqb;
}
}

63
core/java/android/nfc/technology/NfcF.java Normal file
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@@ -0,0 +1,63 @@
/*
* 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.
*/
package android.nfc.technology;
import android.nfc.NfcAdapter;
import android.nfc.Tag;
import android.os.Bundle;
import android.os.RemoteException;
/**
* A low-level connection to a {@link Tag} using the NFC-F technology, also known as
* JIS6319-4.
*
* <p>You can acquire this kind of connection with {@link Tag#getTechnology(int)}.
* Use this class to send and receive data with {@link #transceive transceive()}.
*
* <p>Applications must implement their own protocol stack on top of
* {@link #transceive transceive()}.
*
* <p class="note"><strong>Note:</strong>
* Use of this class requires the {@link android.Manifest.permission#NFC}
* permission.
*/
public final class NfcF extends BasicTagTechnology {
/** @hide */
public static final String EXTRA_SC = "systemcode";
/** @hide */
public static final String EXTRA_PMM = "pmm";
private byte[] mSystemCode = null;
private byte[] mManufacturer = null;
public NfcF(NfcAdapter adapter, Tag tag, Bundle extras)
throws RemoteException {
super(adapter, tag, TagTechnology.NFC_F);
if (extras != null) {
mSystemCode = extras.getByteArray(EXTRA_SC);
mManufacturer = extras.getByteArray(EXTRA_PMM);
}
}
public byte[] getSystemCode() {
return mSystemCode;
}
public byte[] getManufacturer() {
return mManufacturer;
}
}

43
core/java/android/nfc/technology/NfcV.java Normal file
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@@ -0,0 +1,43 @@
/*
* 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.
*/
package android.nfc.technology;
import android.nfc.NfcAdapter;
import android.nfc.Tag;
import android.os.Bundle;
import android.os.RemoteException;
/**
* A low-level connection to a {@link Tag} using the NFC-V technology, also known as
* ISO15693.
*
* <p>You can acquire this kind of connection with {@link Tag#getTechnology(int)}.
* Use this class to send and receive data with {@link #transceive transceive()}.
*
* <p>Applications must implement their own protocol stack on top of
* {@link #transceive transceive()}.
*
* <p class="note"><strong>Note:</strong>
* Use of this class requires the {@link android.Manifest.permission#NFC}
* permission.
*/
public final class NfcV extends BasicTagTechnology {
public NfcV(NfcAdapter adapter, Tag tag, Bundle extras)
throws RemoteException {
super(adapter, tag, TagTechnology.NFC_V);
}
}

109
core/java/android/nfc/technology/TagTechnology.java Normal file
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@@ -0,0 +1,109 @@
/*
* 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.
*/
package android.nfc.technology;
import android.nfc.Tag;
import java.io.IOException;
public interface TagTechnology {
/**
* This object is an instance of {@link NfcA}
*/
public static final int NFC_A = 1;
/**
* This object is an instance of {@link NfcB}
*/
public static final int NFC_B = 2;
/**
* This object is an instance of {@link IsoDep}
*/
public static final int ISO_DEP = 3;
/**
* This object is an instance of {@link NfcF}
*/
public static final int NFC_F = 11;
/**
* This object is an instance of {@link NfcV}
*/
public static final int NFC_V = 21;
/**
* This object is an instance of {@link Ndef}
*/
public static final int TYPE_1 = 101;
/**
* This object is an instance of {@link Ndef}
*/
public static final int TYPE_2 = 102;
/**
* This object is an instance of {@link Ndef}
*/
public static final int TYPE_3 = 103;
/**
* This object is an instance of {@link Ndef}
*/
public static final int TYPE_4 = 104;
/**
* This object is an instance of {@link MifareClassic}
*/
public static final int MIFARE_CLASSIC = 200;
/**
* A Mifare Classic tag with NDEF data
*/
public static final int MIFARE_CLASSIC_NDEF = 201;
/**
* A Mifare Ultralight tag
*/
public static final int MIFARE_ULTRALIGHT = 202;
/**
* A Mifare DESFire tag
*/
public static final int MIFARE_DESFIRE = 203;
/**
* Returns the technology type for this tag connection.
*/
public int getTechnologyId();
/**
* Get the backing tag object.
*/
public Tag getTag();
/**
* @throws IOException
*/
public void connect() throws IOException;
/**
* Non-blocking. Immediately causes all blocking calls
* to throw IOException.
*/
public void close();
}

5
core/java/android/nfc/technology/package.html Normal file
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@@ -0,0 +1,5 @@
<HTML>
<BODY>
{@hide}
</BODY>
</HTML>