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Diffstat (limited to 'nxp/src/com/android/nfc/dhimpl/NativeNfcTag.java')
-rwxr-xr-xnxp/src/com/android/nfc/dhimpl/NativeNfcTag.java803
1 files changed, 0 insertions, 803 deletions
diff --git a/nxp/src/com/android/nfc/dhimpl/NativeNfcTag.java b/nxp/src/com/android/nfc/dhimpl/NativeNfcTag.java
deleted file mode 100755
index eddde94..0000000
--- a/nxp/src/com/android/nfc/dhimpl/NativeNfcTag.java
+++ /dev/null
@@ -1,803 +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 com.android.nfc.dhimpl;
-
-import com.android.nfc.DeviceHost.TagEndpoint;
-
-import android.nfc.FormatException;
-import android.nfc.NdefMessage;
-import android.nfc.tech.IsoDep;
-import android.nfc.tech.MifareClassic;
-import android.nfc.tech.MifareUltralight;
-import android.nfc.tech.Ndef;
-import android.nfc.tech.NfcA;
-import android.nfc.tech.NfcB;
-import android.nfc.tech.NfcF;
-import android.nfc.tech.NfcV;
-import android.nfc.tech.TagTechnology;
-import android.os.Bundle;
-import android.util.Log;
-
-/**
- * Native interface to the NFC tag functions
- */
-public class NativeNfcTag implements TagEndpoint {
- static final boolean DBG = false;
-
- static final int STATUS_CODE_TARGET_LOST = 146;
-
- private int[] mTechList;
- private int[] mTechHandles;
- private int[] mTechLibNfcTypes;
- private Bundle[] mTechExtras;
- private byte[][] mTechPollBytes;
- private byte[][] mTechActBytes;
- private byte[] mUid;
-
- // mConnectedHandle stores the *real* libnfc handle
- // that we're connected to.
- private int mConnectedHandle;
-
- // mConnectedTechIndex stores to which technology
- // the upper layer stack is connected. Note that
- // we may be connected to a libnfchandle without being
- // connected to a technology - technology changes
- // may occur runtime, whereas the underlying handle
- // could stay present. Usually all technologies are on the
- // same handle, with the exception of multi-protocol
- // tags.
- private int mConnectedTechIndex; // Index in mTechHandles
-
- private final String TAG = "NativeNfcTag";
-
- private boolean mIsPresent; // Whether the tag is known to be still present
-
- private PresenceCheckWatchdog mWatchdog;
- class PresenceCheckWatchdog extends Thread {
-
- private int watchdogTimeout = 125;
-
- private boolean isPresent = true;
- private boolean isStopped = false;
- private boolean isPaused = false;
- private boolean doCheck = true;
-
- public synchronized void pause() {
- isPaused = true;
- doCheck = false;
- this.notifyAll();
- }
-
- public synchronized void doResume() {
- isPaused = false;
- // We don't want to resume presence checking immediately,
- // but go through at least one more wait period.
- doCheck = false;
- this.notifyAll();
- }
-
- public synchronized void end() {
- isStopped = true;
- doCheck = false;
- this.notifyAll();
- }
-
- public synchronized void setTimeout(int timeout) {
- watchdogTimeout = timeout;
- doCheck = false; // Do it only after we have waited "timeout" ms again
- this.notifyAll();
- }
-
- @Override
- public synchronized void run() {
- if (DBG) Log.d(TAG, "Starting background presence check");
- while (isPresent && !isStopped) {
- try {
- if (!isPaused) {
- doCheck = true;
- }
- this.wait(watchdogTimeout);
- if (doCheck) {
- isPresent = doPresenceCheck();
- } else {
- // 1) We are paused, waiting for unpause
- // 2) We just unpaused, do pres check in next iteration
- // (after watchdogTimeout ms sleep)
- // 3) We just set the timeout, wait for this timeout
- // to expire once first.
- // 4) We just stopped, exit loop anyway
- }
- } catch (InterruptedException e) {
- // Activity detected, loop
- }
- }
- mIsPresent = false;
- // Restart the polling loop
-
- Log.d(TAG, "Tag lost, restarting polling loop");
- doDisconnect();
- if (DBG) Log.d(TAG, "Stopping background presence check");
- }
- }
-
- private native int doConnect(int handle);
- public synchronized int connectWithStatus(int technology) {
- if (mWatchdog != null) {
- mWatchdog.pause();
- }
- int status = -1;
- for (int i = 0; i < mTechList.length; i++) {
- if (mTechList[i] == technology) {
- // Get the handle and connect, if not already connected
- if (mConnectedHandle != mTechHandles[i]) {
- // We're not yet connected to this handle, there are
- // a few scenario's here:
- // 1) We are not connected to anything yet - allow
- // 2) We are connected to a technology which has
- // a different handle (multi-protocol tag); we support
- // switching to that.
- if (mConnectedHandle == -1) {
- // Not connected yet
- status = doConnect(mTechHandles[i]);
- } else {
- // Connect to a tech with a different handle
- status = reconnectWithStatus(mTechHandles[i]);
- }
- if (status == 0) {
- mConnectedHandle = mTechHandles[i];
- mConnectedTechIndex = i;
- }
- } else {
- // 1) We are connected to a technology which has the same
- // handle; we do not support connecting at a different
- // level (libnfc auto-activates to the max level on
- // any handle).
- // 2) We are connecting to the ndef technology - always
- // allowed.
- if ((technology == TagTechnology.NDEF) ||
- (technology == TagTechnology.NDEF_FORMATABLE)) {
- status = 0;
- } else {
- if ((technology != TagTechnology.ISO_DEP) &&
- (hasTechOnHandle(TagTechnology.ISO_DEP, mTechHandles[i]))) {
- // Don't allow to connect a -4 tag at a different level
- // than IsoDep, as this is not supported by
- // libNFC.
- status = -1;
- } else {
- status = 0;
- }
- }
- if (status == 0) {
- mConnectedTechIndex = i;
- // Handle was already identical
- }
- }
- break;
- }
- }
- if (mWatchdog != null) {
- mWatchdog.doResume();
- }
- return status;
- }
- @Override
- public synchronized boolean connect(int technology) {
- return connectWithStatus(technology) == 0;
- }
-
- @Override
- public synchronized void startPresenceChecking() {
- // Once we start presence checking, we allow the upper layers
- // to know the tag is in the field.
- mIsPresent = true;
- if (mWatchdog == null) {
- mWatchdog = new PresenceCheckWatchdog();
- mWatchdog.start();
- }
- }
-
- @Override
- public synchronized boolean isPresent() {
- // Returns whether the tag is still in the field to the best
- // of our knowledge.
- return mIsPresent;
- }
- native boolean doDisconnect();
- @Override
- public synchronized boolean disconnect() {
- boolean result = false;
-
- mIsPresent = false;
- if (mWatchdog != null) {
- // Watchdog has already disconnected or will do it
- mWatchdog.end();
- try {
- mWatchdog.join();
- } catch (InterruptedException e) {
- // Should never happen.
- }
- mWatchdog = null;
- result = true;
- } else {
- result = doDisconnect();
- }
-
- mConnectedTechIndex = -1;
- mConnectedHandle = -1;
- return result;
- }
-
- native int doReconnect();
- public synchronized int reconnectWithStatus() {
- if (mWatchdog != null) {
- mWatchdog.pause();
- }
- int status = doReconnect();
- if (mWatchdog != null) {
- mWatchdog.doResume();
- }
- return status;
- }
- @Override
- public synchronized boolean reconnect() {
- return reconnectWithStatus() == 0;
- }
-
- native int doHandleReconnect(int handle);
- public synchronized int reconnectWithStatus(int handle) {
- if (mWatchdog != null) {
- mWatchdog.pause();
- }
- int status = doHandleReconnect(handle);
- if (mWatchdog != null) {
- mWatchdog.doResume();
- }
- return status;
- }
-
- private native byte[] doTransceive(byte[] data, boolean raw, int[] returnCode);
- @Override
- public synchronized byte[] transceive(byte[] data, boolean raw, int[] returnCode) {
- if (mWatchdog != null) {
- mWatchdog.pause();
- }
- byte[] result = doTransceive(data, raw, returnCode);
- if (mWatchdog != null) {
- mWatchdog.doResume();
- }
- return result;
- }
-
- private native int doCheckNdef(int[] ndefinfo);
- private synchronized int checkNdefWithStatus(int[] ndefinfo) {
- if (mWatchdog != null) {
- mWatchdog.pause();
- }
- int status = doCheckNdef(ndefinfo);
- if (mWatchdog != null) {
- mWatchdog.doResume();
- }
- return status;
- }
- @Override
- public synchronized boolean checkNdef(int[] ndefinfo) {
- return checkNdefWithStatus(ndefinfo) == 0;
- }
-
- private native byte[] doRead();
- @Override
- public synchronized byte[] readNdef() {
- if (mWatchdog != null) {
- mWatchdog.pause();
- }
- byte[] result = doRead();
- if (mWatchdog != null) {
- mWatchdog.doResume();
- }
- return result;
- }
-
- private native boolean doWrite(byte[] buf);
- @Override
- public synchronized boolean writeNdef(byte[] buf) {
- if (mWatchdog != null) {
- mWatchdog.pause();
- }
- boolean result = doWrite(buf);
- if (mWatchdog != null) {
- mWatchdog.doResume();
- }
- return result;
- }
-
- native boolean doPresenceCheck();
- @Override
- public synchronized boolean presenceCheck() {
- if (mWatchdog != null) {
- mWatchdog.pause();
- }
- boolean result = doPresenceCheck();
- if (mWatchdog != null) {
- mWatchdog.doResume();
- }
- return result;
- }
-
- native boolean doNdefFormat(byte[] key);
- @Override
- public synchronized boolean formatNdef(byte[] key) {
- if (mWatchdog != null) {
- mWatchdog.pause();
- }
- boolean result = doNdefFormat(key);
- if (mWatchdog != null) {
- mWatchdog.doResume();
- }
- return result;
- }
-
- native boolean doMakeReadonly(byte[] key);
- @Override
- public synchronized boolean makeReadOnly() {
- if (mWatchdog != null) {
- mWatchdog.pause();
- }
- boolean result;
- if (hasTech(TagTechnology.MIFARE_CLASSIC)) {
- result = doMakeReadonly(MifareClassic.KEY_DEFAULT);
- } else {
- // No key needed for other technologies
- result = doMakeReadonly(new byte[] {});
- }
- if (mWatchdog != null) {
- mWatchdog.doResume();
- }
- return result;
- }
-
- native boolean doIsIsoDepNdefFormatable(byte[] poll, byte[] act);
- @Override
- public synchronized boolean isNdefFormatable() {
- if (hasTech(TagTechnology.MIFARE_CLASSIC) || hasTech(TagTechnology.MIFARE_ULTRALIGHT)) {
- // These are always formatable
- return true;
- }
- if (hasTech(TagTechnology.NFC_V)) {
- // Currently libnfc only formats NXP NFC-V tags
- if (mUid[5] >= 1 && mUid[5] <= 3 && mUid[6] == 0x04) {
- return true;
- } else {
- return false;
- }
- }
- // For ISO-DEP, call native code to determine at lower level if format
- // is possible. It will need NFC-A poll/activation time bytes for this.
- if (hasTech(TagTechnology.ISO_DEP)) {
- int nfcaTechIndex = getTechIndex(TagTechnology.NFC_A);
- if (nfcaTechIndex != -1) {
- return doIsIsoDepNdefFormatable(mTechPollBytes[nfcaTechIndex],
- mTechActBytes[nfcaTechIndex]);
- } else {
- return false;
- }
- } else {
- // Formatting not supported by libNFC
- return false;
- }
- }
-
- @Override
- public int getHandle() {
- // This is just a handle for the clients; it can simply use the first
- // technology handle we have.
- if (mTechHandles.length > 0) {
- return mTechHandles[0];
- } else {
- return 0;
- }
- }
-
- @Override
- public byte[] getUid() {
- return mUid;
- }
-
- @Override
- public int[] getTechList() {
- return mTechList;
- }
-
- private int getConnectedHandle() {
- return mConnectedHandle;
- }
-
- private int getConnectedLibNfcType() {
- if (mConnectedTechIndex != -1 && mConnectedTechIndex < mTechLibNfcTypes.length) {
- return mTechLibNfcTypes[mConnectedTechIndex];
- } else {
- return 0;
- }
- }
-
- @Override
- public int getConnectedTechnology() {
- if (mConnectedTechIndex != -1 && mConnectedTechIndex < mTechList.length) {
- return mTechList[mConnectedTechIndex];
- } else {
- return 0;
- }
- }
- native int doGetNdefType(int libnfctype, int javatype);
- private int getNdefType(int libnfctype, int javatype) {
- return doGetNdefType(libnfctype, javatype);
- }
-
- private void addTechnology(int tech, int handle, int libnfctype) {
- int[] mNewTechList = new int[mTechList.length + 1];
- System.arraycopy(mTechList, 0, mNewTechList, 0, mTechList.length);
- mNewTechList[mTechList.length] = tech;
- mTechList = mNewTechList;
-
- int[] mNewHandleList = new int[mTechHandles.length + 1];
- System.arraycopy(mTechHandles, 0, mNewHandleList, 0, mTechHandles.length);
- mNewHandleList[mTechHandles.length] = handle;
- mTechHandles = mNewHandleList;
-
- int[] mNewTypeList = new int[mTechLibNfcTypes.length + 1];
- System.arraycopy(mTechLibNfcTypes, 0, mNewTypeList, 0, mTechLibNfcTypes.length);
- mNewTypeList[mTechLibNfcTypes.length] = libnfctype;
- mTechLibNfcTypes = mNewTypeList;
- }
-
- @Override
- public void removeTechnology(int tech) {
- synchronized (this) {
- int techIndex = getTechIndex(tech);
- if (techIndex != -1) {
- int[] mNewTechList = new int[mTechList.length - 1];
- System.arraycopy(mTechList, 0, mNewTechList, 0, techIndex);
- System.arraycopy(mTechList, techIndex + 1, mNewTechList, techIndex,
- mTechList.length - techIndex - 1);
- mTechList = mNewTechList;
-
- int[] mNewHandleList = new int[mTechHandles.length - 1];
- System.arraycopy(mTechHandles, 0, mNewHandleList, 0, techIndex);
- System.arraycopy(mTechHandles, techIndex + 1, mNewTechList, techIndex,
- mTechHandles.length - techIndex - 1);
- mTechHandles = mNewHandleList;
-
- int[] mNewTypeList = new int[mTechLibNfcTypes.length - 1];
- System.arraycopy(mTechLibNfcTypes, 0, mNewTypeList, 0, techIndex);
- System.arraycopy(mTechLibNfcTypes, techIndex + 1, mNewTypeList, techIndex,
- mTechLibNfcTypes.length - techIndex - 1);
- mTechLibNfcTypes = mNewTypeList;
- }
- }
- }
-
- public void addNdefFormatableTechnology(int handle, int libnfcType) {
- synchronized (this) {
- addTechnology(TagTechnology.NDEF_FORMATABLE, handle, libnfcType);
- }
- }
-
- // This method exists to "patch in" the ndef technologies,
- // which is done inside Java instead of the native JNI code.
- // To not create some nasty dependencies on the order on which things
- // are called (most notably getTechExtras()), it needs some additional
- // checking.
- public void addNdefTechnology(NdefMessage msg, int handle, int libnfcType,
- int javaType, int maxLength, int cardState) {
- synchronized (this) {
- addTechnology(TagTechnology.NDEF, handle, libnfcType);
-
- Bundle extras = new Bundle();
- extras.putParcelable(Ndef.EXTRA_NDEF_MSG, msg);
- extras.putInt(Ndef.EXTRA_NDEF_MAXLENGTH, maxLength);
- extras.putInt(Ndef.EXTRA_NDEF_CARDSTATE, cardState);
- extras.putInt(Ndef.EXTRA_NDEF_TYPE, getNdefType(libnfcType, javaType));
-
- if (mTechExtras == null) {
- // This will build the tech extra's for the first time,
- // including a NULL ref for the NDEF tech we generated above.
- Bundle[] builtTechExtras = getTechExtras();
- builtTechExtras[builtTechExtras.length - 1] = extras;
- }
- else {
- // Tech extras were built before, patch the NDEF one in
- Bundle[] oldTechExtras = getTechExtras();
- Bundle[] newTechExtras = new Bundle[oldTechExtras.length + 1];
- System.arraycopy(oldTechExtras, 0, newTechExtras, 0, oldTechExtras.length);
- newTechExtras[oldTechExtras.length] = extras;
- mTechExtras = newTechExtras;
- }
-
-
- }
- }
-
- private int getTechIndex(int tech) {
- int techIndex = -1;
- for (int i = 0; i < mTechList.length; i++) {
- if (mTechList[i] == tech) {
- techIndex = i;
- break;
- }
- }
- return techIndex;
- }
-
- private boolean hasTech(int tech) {
- boolean hasTech = false;
- for (int i = 0; i < mTechList.length; i++) {
- if (mTechList[i] == tech) {
- hasTech = true;
- break;
- }
- }
- return hasTech;
- }
-
- private boolean hasTechOnHandle(int tech, int handle) {
- boolean hasTech = false;
- for (int i = 0; i < mTechList.length; i++) {
- if (mTechList[i] == tech && mTechHandles[i] == handle) {
- hasTech = true;
- break;
- }
- }
- return hasTech;
-
- }
-
- private boolean isUltralightC() {
- /* Make a best-effort attempt at classifying ULTRALIGHT
- * vs ULTRALIGHT-C (based on NXP's public AN1303).
- * The memory layout is as follows:
- * Page # BYTE1 BYTE2 BYTE3 BYTE4
- * 2 INT1 INT2 LOCK LOCK
- * 3 OTP OTP OTP OTP (NDEF CC if NDEF-formatted)
- * 4 DATA DATA DATA DATA (version info if factory-state)
- *
- * Read four blocks from page 2, which will get us both
- * the lock page, the OTP page and the version info.
- */
- boolean isUltralightC = false;
- byte[] readCmd = { 0x30, 0x02 };
- int[] retCode = new int[2];
- byte[] respData = transceive(readCmd, false, retCode);
- if (respData != null && respData.length == 16) {
- // Check the lock bits (last 2 bytes in page2)
- // and the OTP bytes (entire page 3)
- if (respData[2] == 0 && respData[3] == 0 && respData[4] == 0 &&
- respData[5] == 0 && respData[6] == 0 && respData[7] == 0) {
- // Very likely to be a blank card, look at version info
- // in page 4.
- if ((respData[8] == (byte)0x02) && respData[9] == (byte)0x00) {
- // This is Ultralight-C
- isUltralightC = true;
- } else {
- // 0xFF 0xFF would indicate Ultralight, but we also use Ultralight
- // as a fallback if it's anything else
- isUltralightC = false;
- }
- } else {
- // See if we can find the NDEF CC in the OTP page and if it's
- // smaller than major version two
- if (respData[4] == (byte)0xE1 && ((respData[5] & 0xff) < 0x20)) {
- // OK, got NDEF. Technically we'd have to search for the
- // NDEF TLV as well. However, this would add too much
- // time for discovery and we can make already make a good guess
- // with the data we have here. Byte 2 of the OTP page
- // indicates the size of the tag - 0x06 is UL, anything
- // above indicates UL-C.
- if ((respData[6] & 0xff) > 0x06) {
- isUltralightC = true;
- }
- } else {
- // Fall back to ultralight
- isUltralightC = false;
- }
- }
- }
- return isUltralightC;
- }
-
- @Override
- public Bundle[] getTechExtras() {
- synchronized (this) {
- if (mTechExtras != null) return mTechExtras;
- mTechExtras = new Bundle[mTechList.length];
- for (int i = 0; i < mTechList.length; i++) {
- Bundle extras = new Bundle();
- switch (mTechList[i]) {
- case TagTechnology.NFC_A: {
- byte[] actBytes = mTechActBytes[i];
- if ((actBytes != null) && (actBytes.length > 0)) {
- extras.putShort(NfcA.EXTRA_SAK, (short) (actBytes[0] & (short) 0xFF));
- } else {
- // Unfortunately Jewel doesn't have act bytes,
- // ignore this case.
- }
- extras.putByteArray(NfcA.EXTRA_ATQA, mTechPollBytes[i]);
- break;
- }
-
- case TagTechnology.NFC_B: {
- // What's returned from the PN544 is actually:
- // 4 bytes app data
- // 3 bytes prot info
- byte[] appData = new byte[4];
- byte[] protInfo = new byte[3];
- if (mTechPollBytes[i].length >= 7) {
- System.arraycopy(mTechPollBytes[i], 0, appData, 0, 4);
- System.arraycopy(mTechPollBytes[i], 4, protInfo, 0, 3);
-
- extras.putByteArray(NfcB.EXTRA_APPDATA, appData);
- extras.putByteArray(NfcB.EXTRA_PROTINFO, protInfo);
- }
- break;
- }
-
- case TagTechnology.NFC_F: {
- byte[] pmm = new byte[8];
- byte[] sc = new byte[2];
- if (mTechPollBytes[i].length >= 8) {
- // At least pmm is present
- System.arraycopy(mTechPollBytes[i], 0, pmm, 0, 8);
- extras.putByteArray(NfcF.EXTRA_PMM, pmm);
- }
- if (mTechPollBytes[i].length == 10) {
- System.arraycopy(mTechPollBytes[i], 8, sc, 0, 2);
- extras.putByteArray(NfcF.EXTRA_SC, sc);
- }
- break;
- }
-
- case TagTechnology.ISO_DEP: {
- if (hasTech(TagTechnology.NFC_A)) {
- extras.putByteArray(IsoDep.EXTRA_HIST_BYTES, mTechActBytes[i]);
- }
- else {
- extras.putByteArray(IsoDep.EXTRA_HI_LAYER_RESP, mTechActBytes[i]);
- }
- break;
- }
-
- case TagTechnology.NFC_V: {
- // First byte response flags, second byte DSFID
- if (mTechPollBytes[i] != null && mTechPollBytes[i].length >= 2) {
- extras.putByte(NfcV.EXTRA_RESP_FLAGS, mTechPollBytes[i][0]);
- extras.putByte(NfcV.EXTRA_DSFID, mTechPollBytes[i][1]);
- }
- break;
- }
-
- case TagTechnology.MIFARE_ULTRALIGHT: {
- boolean isUlc = isUltralightC();
- extras.putBoolean(MifareUltralight.EXTRA_IS_UL_C, isUlc);
- break;
- }
-
- default: {
- // Leave the entry in the array null
- continue;
- }
- }
- mTechExtras[i] = extras;
- }
- return mTechExtras;
- }
- }
-
- @Override
- public NdefMessage findAndReadNdef() {
- // Try to find NDEF on any of the technologies.
- int[] technologies = getTechList();
- int[] handles = mTechHandles;
- NdefMessage ndefMsg = null;
- boolean foundFormattable = false;
- int formattableHandle = 0;
- int formattableLibNfcType = 0;
- int status;
-
- for (int techIndex = 0; techIndex < technologies.length; techIndex++) {
- // have we seen this handle before?
- for (int i = 0; i < techIndex; i++) {
- if (handles[i] == handles[techIndex]) {
- continue; // don't check duplicate handles
- }
- }
-
- status = connectWithStatus(technologies[techIndex]);
- if (status != 0) {
- Log.d(TAG, "Connect Failed - status = "+ status);
- if (status == STATUS_CODE_TARGET_LOST) {
- break;
- }
- continue; // try next handle
- }
- // Check if this type is NDEF formatable
- if (!foundFormattable) {
- if (isNdefFormatable()) {
- foundFormattable = true;
- formattableHandle = getConnectedHandle();
- formattableLibNfcType = getConnectedLibNfcType();
- // We'll only add formattable tech if no ndef is
- // found - this is because libNFC refuses to format
- // an already NDEF formatted tag.
- }
- reconnect();
- }
-
- int[] ndefinfo = new int[2];
- status = checkNdefWithStatus(ndefinfo);
- if (status != 0) {
- Log.d(TAG, "Check NDEF Failed - status = " + status);
- if (status == STATUS_CODE_TARGET_LOST) {
- break;
- }
- continue; // try next handle
- }
-
- // found our NDEF handle
- boolean generateEmptyNdef = false;
-
- int supportedNdefLength = ndefinfo[0];
- int cardState = ndefinfo[1];
- byte[] buff = readNdef();
- if (buff != null) {
- try {
- ndefMsg = new NdefMessage(buff);
- addNdefTechnology(ndefMsg,
- getConnectedHandle(),
- getConnectedLibNfcType(),
- getConnectedTechnology(),
- supportedNdefLength, cardState);
- reconnect();
- } catch (FormatException e) {
- // Create an intent anyway, without NDEF messages
- generateEmptyNdef = true;
- }
- } else {
- generateEmptyNdef = true;
- }
-
- if (generateEmptyNdef) {
- ndefMsg = null;
- addNdefTechnology(null,
- getConnectedHandle(),
- getConnectedLibNfcType(),
- getConnectedTechnology(),
- supportedNdefLength, cardState);
- reconnect();
- }
- break;
- }
-
- if (ndefMsg == null && foundFormattable) {
- // Tag is not NDEF yet, and found a formattable target,
- // so add formattable tech to tech list.
- addNdefFormatableTechnology(
- formattableHandle,
- formattableLibNfcType);
- }
-
- return ndefMsg;
- }
-}
generated by cgit v1.1 at 2024-06-11 01:22:24 +0000