nxp/src/com/android/nfc/dhimpl/NativeNfcManager.java - platform/packages/apps/Nfc - Git at Google

 /*
  * 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;
 import com.android.nfc.LlcpException;

 import android.annotation.SdkConstant;
 import android.annotation.SdkConstant.SdkConstantType;
 import android.content.Context;
 import android.content.SharedPreferences;
 import android.nfc.ErrorCodes;
 import android.nfc.tech.Ndef;
 import android.nfc.tech.TagTechnology;
 import android.util.Log;
 import com.android.nfc.NfcDiscoveryParameters;

 import java.io.File;

 /**
  * Native interface to the NFC Manager functions
  */
 public class NativeNfcManager implements DeviceHost {
     private static final String TAG = "NativeNfcManager";

     private static final String NFC_CONTROLLER_FIRMWARE_FILE_NAME = "/vendor/firmware/libpn544_fw.so";

     static final String PREF = "NxpDeviceHost";

     private static final String PREF_FIRMWARE_MODTIME = "firmware_modtime";
     private static final long FIRMWARE_MODTIME_DEFAULT = -1;

     static final String DRIVER_NAME = "nxp";

     static final int DEFAULT_LLCP_MIU = 128;
     static final int DEFAULT_LLCP_RWSIZE = 1;

     static {
         System.loadLibrary("nfc_jni");
     }

     /* Native structure */
     private long mNative;

     private final DeviceHostListener mListener;
     private final Context mContext;

     public NativeNfcManager(Context context, DeviceHostListener listener) {
         mListener = listener;
         initializeNativeStructure();
         mContext = context;
     }

     public native boolean initializeNativeStructure();

     private native boolean doDownload();

     public native int doGetLastError();

     @Override
     public void checkFirmware() {
         // Check that the NFC controller firmware is up to date.  This
         // ensures that firmware updates are applied in a timely fashion,
         // and makes it much less likely that the user will have to wait
         // for a firmware download when they enable NFC in the settings
         // app.  Firmware download can take some time, so this should be
         // run in a separate thread.

         // check the timestamp of the firmware file
         File firmwareFile;
         int nbRetry = 0;
         try {
             firmwareFile = new File(NFC_CONTROLLER_FIRMWARE_FILE_NAME);
         } catch(NullPointerException npe) {
             Log.e(TAG,"path to firmware file was null");
             return;
         }

         long modtime = firmwareFile.lastModified();

         SharedPreferences prefs = mContext.getSharedPreferences(PREF, Context.MODE_PRIVATE);
         long prev_fw_modtime = prefs.getLong(PREF_FIRMWARE_MODTIME, FIRMWARE_MODTIME_DEFAULT);
         Log.d(TAG,"prev modtime: " + prev_fw_modtime);
         Log.d(TAG,"new modtime: " + modtime);
         if (prev_fw_modtime == modtime) {
             return;
         }

         // FW download.
         while(nbRetry < 5) {
             Log.d(TAG,"Perform Download");
             if(doDownload()) {
                 Log.d(TAG,"Download Success");
                 // Now that we've finished updating the firmware, save the new modtime.
                 prefs.edit().putLong(PREF_FIRMWARE_MODTIME, modtime).apply();
                 break;
             } else {
                 Log.d(TAG,"Download Failed");
                 nbRetry++;
             }
         }
     }

     private native boolean doInitialize();

     @Override
     public boolean initialize() {
         return doInitialize();
     }

     private native boolean doDeinitialize();

     @Override
     public boolean deinitialize() {
         return doDeinitialize();
     }

     @Override
     public String getName() {
         return DRIVER_NAME;
     }

     @Override
     public boolean sendRawFrame(byte[] data)
     {
         return false;
     }

     @Override
     public boolean routeAid(byte[] aid, int route)
     {
         return false;
     }

     @Override
     public boolean unrouteAid(byte[] aid)
     {
        return false;
     }

     @Override
     public boolean commitRouting()
     {
         return false;
     }

     private native void doEnableDiscovery(int techMask,
                                           boolean enableLowPowerPolling,
                                           boolean enableReaderMode,
                                           boolean enableP2p,
                                           boolean restart);
     @Override
     public void enableDiscovery(NfcDiscoveryParameters params, boolean restart) {
         doEnableDiscovery(params.getTechMask(), params.shouldEnableLowPowerDiscovery(),
                 params.shouldEnableReaderMode(), params.shouldEnableP2p(), restart);
     }

     @Override
     public native void disableDiscovery();

     private native NativeLlcpConnectionlessSocket doCreateLlcpConnectionlessSocket(int nSap,
             String sn);

     @Override
     public LlcpConnectionlessSocket createLlcpConnectionlessSocket(int nSap, String sn)
             throws LlcpException {
         LlcpConnectionlessSocket socket = doCreateLlcpConnectionlessSocket(nSap, sn);
         if (socket != null) {
             return socket;
         } else {
             /* Get Error Status */
             int error = doGetLastError();

             Log.d(TAG, "failed to create llcp socket: " + ErrorCodes.asString(error));

             switch (error) {
                 case ErrorCodes.ERROR_BUFFER_TO_SMALL:
                 case ErrorCodes.ERROR_INSUFFICIENT_RESOURCES:
                     throw new LlcpException(error);
                 default:
                     throw new LlcpException(ErrorCodes.ERROR_SOCKET_CREATION);
             }
         }
     }

     private native NativeLlcpServiceSocket doCreateLlcpServiceSocket(int nSap, String sn, int miu,
             int rw, int linearBufferLength);
     @Override
     public LlcpServerSocket createLlcpServerSocket(int nSap, String sn, int miu,
             int rw, int linearBufferLength) throws LlcpException {
         LlcpServerSocket socket = doCreateLlcpServiceSocket(nSap, sn, miu, rw, linearBufferLength);
         if (socket != null) {
             return socket;
         } else {
             /* Get Error Status */
             int error = doGetLastError();

             Log.d(TAG, "failed to create llcp socket: " + ErrorCodes.asString(error));

             switch (error) {
                 case ErrorCodes.ERROR_BUFFER_TO_SMALL:
                 case ErrorCodes.ERROR_INSUFFICIENT_RESOURCES:
                     throw new LlcpException(error);
                 default:
                     throw new LlcpException(ErrorCodes.ERROR_SOCKET_CREATION);
             }
         }
     }

     private native NativeLlcpSocket doCreateLlcpSocket(int sap, int miu, int rw,
             int linearBufferLength);
     @Override
     public LlcpSocket createLlcpSocket(int sap, int miu, int rw,
             int linearBufferLength) throws LlcpException {
         LlcpSocket socket = doCreateLlcpSocket(sap, miu, rw, linearBufferLength);
         if (socket != null) {
             return socket;
         } else {
             /* Get Error Status */
             int error = doGetLastError();

             Log.d(TAG, "failed to create llcp socket: " + ErrorCodes.asString(error));

             switch (error) {
                 case ErrorCodes.ERROR_BUFFER_TO_SMALL:
                 case ErrorCodes.ERROR_INSUFFICIENT_RESOURCES:
                     throw new LlcpException(error);
                 default:
                     throw new LlcpException(ErrorCodes.ERROR_SOCKET_CREATION);
             }
         }
     }

     @Override
     public native boolean doCheckLlcp();

     @Override
     public native boolean doActivateLlcp();

     private native void doResetTimeouts();

     @Override
     public void resetTimeouts() {
         doResetTimeouts();
     }

     @Override
     public native void doAbort();

     private native boolean doSetTimeout(int tech, int timeout);
     @Override
     public boolean setTimeout(int tech, int timeout) {
         return doSetTimeout(tech, timeout);
     }

     private native int doGetTimeout(int tech);
     @Override
     public int getTimeout(int tech) {
         return doGetTimeout(tech);
     }


     @Override
     public boolean canMakeReadOnly(int ndefType) {
         return (ndefType == Ndef.TYPE_1 || ndefType == Ndef.TYPE_2 ||
                 ndefType == Ndef.TYPE_MIFARE_CLASSIC);
     }

     @Override
     public int getMaxTransceiveLength(int technology) {
         switch (technology) {
             case (TagTechnology.NFC_A):
             case (TagTechnology.MIFARE_CLASSIC):
             case (TagTechnology.MIFARE_ULTRALIGHT):
                 return 253; // PN544 RF buffer = 255 bytes, subtract two for CRC
             case (TagTechnology.NFC_B):
                 return 0; // PN544 does not support transceive of raw NfcB
             case (TagTechnology.NFC_V):
                 return 253; // PN544 RF buffer = 255 bytes, subtract two for CRC
             case (TagTechnology.ISO_DEP):
                 /* The maximum length of a normal IsoDep frame consists of:
                  * CLA, INS, P1, P2, LC, LE + 255 payload bytes = 261 bytes
                  * such a frame is supported. Extended length frames however
                  * are not supported.
                  */
                 return 261; // Will be automatically split in two frames on the RF layer
             case (TagTechnology.NFC_F):
                 return 252; // PN544 RF buffer = 255 bytes, subtract one for SoD, two for CRC
             default:
                 return 0;
         }

     }

     private native void doSetP2pInitiatorModes(int modes);
     @Override
     public void setP2pInitiatorModes(int modes) {
         doSetP2pInitiatorModes(modes);
     }

     private native void doSetP2pTargetModes(int modes);
     @Override
     public void setP2pTargetModes(int modes) {
         doSetP2pTargetModes(modes);
     }

     @Override
     public boolean enableScreenOffSuspend() {
         // Snooze mode not supported on NXP silicon
         Log.i(TAG, "Snooze mode is not supported on NXP NFCC");
         return false;
     }

     @Override
     public boolean disableScreenOffSuspend() {
         // Snooze mode not supported on NXP silicon
         Log.i(TAG, "Snooze mode is not supported on NXP NFCC");
         return true;
     }

     @Override
     public boolean getExtendedLengthApdusSupported() {
         // Not supported on the PN544
         return false;
     }

     @Override
     public int getDefaultLlcpMiu() {
         return DEFAULT_LLCP_MIU;
     }

     @Override
     public int getDefaultLlcpRwSize() {
         return DEFAULT_LLCP_RWSIZE;
     }

     private native String doDump();
     @Override
     public String dump() {
         return doDump();
     }

     /**
      * Notifies Ndef Message (TODO: rename into notifyTargetDiscovered)
      */
     private void notifyNdefMessageListeners(NativeNfcTag tag) {
         mListener.onRemoteEndpointDiscovered(tag);
     }

     /**
      * Notifies P2P Device detected, to activate LLCP link
      */
     private void notifyLlcpLinkActivation(NativeP2pDevice device) {
         mListener.onLlcpLinkActivated(device);
     }

     /**
      * Notifies P2P Device detected, to activate LLCP link
      */
     private void notifyLlcpLinkDeactivated(NativeP2pDevice device) {
         mListener.onLlcpLinkDeactivated(device);
     }

     private void notifyRfFieldActivated() {
         mListener.onRemoteFieldActivated();
     }

     private void notifyRfFieldDeactivated() {
         mListener.onRemoteFieldDeactivated();
     }
 }
	/*
	* 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;
	import com.android.nfc.LlcpException;

	import android.annotation.SdkConstant;
	import android.annotation.SdkConstant.SdkConstantType;
	import android.content.Context;
	import android.content.SharedPreferences;
	import android.nfc.ErrorCodes;
	import android.nfc.tech.Ndef;
	import android.nfc.tech.TagTechnology;
	import android.util.Log;
	import com.android.nfc.NfcDiscoveryParameters;

	import java.io.File;

	/**
	* Native interface to the NFC Manager functions
	*/
	public class NativeNfcManager implements DeviceHost {
	private static final String TAG = "NativeNfcManager";

	private static final String NFC_CONTROLLER_FIRMWARE_FILE_NAME = "/vendor/firmware/libpn544_fw.so";

	static final String PREF = "NxpDeviceHost";

	private static final String PREF_FIRMWARE_MODTIME = "firmware_modtime";
	private static final long FIRMWARE_MODTIME_DEFAULT = -1;

	static final String DRIVER_NAME = "nxp";

	static final int DEFAULT_LLCP_MIU = 128;
	static final int DEFAULT_LLCP_RWSIZE = 1;

	static {
	System.loadLibrary("nfc_jni");
	}

	/* Native structure */
	private long mNative;

	private final DeviceHostListener mListener;
	private final Context mContext;

	public NativeNfcManager(Context context, DeviceHostListener listener) {
	mListener = listener;
	initializeNativeStructure();
	mContext = context;
	}

	public native boolean initializeNativeStructure();

	private native boolean doDownload();

	public native int doGetLastError();

	@Override
	public void checkFirmware() {
	// Check that the NFC controller firmware is up to date. This
	// ensures that firmware updates are applied in a timely fashion,
	// and makes it much less likely that the user will have to wait
	// for a firmware download when they enable NFC in the settings
	// app. Firmware download can take some time, so this should be
	// run in a separate thread.

	// check the timestamp of the firmware file
	File firmwareFile;
	int nbRetry = 0;
	try {
	firmwareFile = new File(NFC_CONTROLLER_FIRMWARE_FILE_NAME);
	} catch(NullPointerException npe) {
	Log.e(TAG,"path to firmware file was null");
	return;
	}

	long modtime = firmwareFile.lastModified();

	SharedPreferences prefs = mContext.getSharedPreferences(PREF, Context.MODE_PRIVATE);
	long prev_fw_modtime = prefs.getLong(PREF_FIRMWARE_MODTIME, FIRMWARE_MODTIME_DEFAULT);
	Log.d(TAG,"prev modtime: " + prev_fw_modtime);
	Log.d(TAG,"new modtime: " + modtime);
	if (prev_fw_modtime == modtime) {
	return;
	}

	// FW download.
	while(nbRetry < 5) {
	Log.d(TAG,"Perform Download");
	if(doDownload()) {
	Log.d(TAG,"Download Success");
	// Now that we've finished updating the firmware, save the new modtime.
	prefs.edit().putLong(PREF_FIRMWARE_MODTIME, modtime).apply();
	break;
	} else {
	Log.d(TAG,"Download Failed");
	nbRetry++;
	}
	}
	}

	private native boolean doInitialize();

	@Override
	public boolean initialize() {
	return doInitialize();
	}

	private native boolean doDeinitialize();

	@Override
	public boolean deinitialize() {
	return doDeinitialize();
	}

	@Override
	public String getName() {
	return DRIVER_NAME;
	}

	@Override
	public boolean sendRawFrame(byte[] data)
	{
	return false;
	}

	@Override
	public boolean routeAid(byte[] aid, int route)
	{
	return false;
	}

	@Override
	public boolean unrouteAid(byte[] aid)
	{
	return false;
	}

	@Override
	public boolean commitRouting()
	{
	return false;
	}

	private native void doEnableDiscovery(int techMask,
	boolean enableLowPowerPolling,
	boolean enableReaderMode,
	boolean enableP2p,
	boolean restart);
	@Override
	public void enableDiscovery(NfcDiscoveryParameters params, boolean restart) {
	doEnableDiscovery(params.getTechMask(), params.shouldEnableLowPowerDiscovery(),
	params.shouldEnableReaderMode(), params.shouldEnableP2p(), restart);
	}

	@Override
	public native void disableDiscovery();

	private native NativeLlcpConnectionlessSocket doCreateLlcpConnectionlessSocket(int nSap,
	String sn);

	@Override
	public LlcpConnectionlessSocket createLlcpConnectionlessSocket(int nSap, String sn)
	throws LlcpException {
	LlcpConnectionlessSocket socket = doCreateLlcpConnectionlessSocket(nSap, sn);
	if (socket != null) {
	return socket;
	} else {
	/* Get Error Status */
	int error = doGetLastError();

	Log.d(TAG, "failed to create llcp socket: " + ErrorCodes.asString(error));

	switch (error) {
	case ErrorCodes.ERROR_BUFFER_TO_SMALL:
	case ErrorCodes.ERROR_INSUFFICIENT_RESOURCES:
	throw new LlcpException(error);
	default:
	throw new LlcpException(ErrorCodes.ERROR_SOCKET_CREATION);
	}
	}
	}

	private native NativeLlcpServiceSocket doCreateLlcpServiceSocket(int nSap, String sn, int miu,
	int rw, int linearBufferLength);
	@Override
	public LlcpServerSocket createLlcpServerSocket(int nSap, String sn, int miu,
	int rw, int linearBufferLength) throws LlcpException {
	LlcpServerSocket socket = doCreateLlcpServiceSocket(nSap, sn, miu, rw, linearBufferLength);
	if (socket != null) {
	return socket;
	} else {
	/* Get Error Status */
	int error = doGetLastError();

	Log.d(TAG, "failed to create llcp socket: " + ErrorCodes.asString(error));

	switch (error) {
	case ErrorCodes.ERROR_BUFFER_TO_SMALL:
	case ErrorCodes.ERROR_INSUFFICIENT_RESOURCES:
	throw new LlcpException(error);
	default:
	throw new LlcpException(ErrorCodes.ERROR_SOCKET_CREATION);
	}
	}
	}

	private native NativeLlcpSocket doCreateLlcpSocket(int sap, int miu, int rw,
	int linearBufferLength);
	@Override
	public LlcpSocket createLlcpSocket(int sap, int miu, int rw,
	int linearBufferLength) throws LlcpException {
	LlcpSocket socket = doCreateLlcpSocket(sap, miu, rw, linearBufferLength);
	if (socket != null) {
	return socket;
	} else {
	/* Get Error Status */
	int error = doGetLastError();

	Log.d(TAG, "failed to create llcp socket: " + ErrorCodes.asString(error));

	switch (error) {
	case ErrorCodes.ERROR_BUFFER_TO_SMALL:
	case ErrorCodes.ERROR_INSUFFICIENT_RESOURCES:
	throw new LlcpException(error);
	default:
	throw new LlcpException(ErrorCodes.ERROR_SOCKET_CREATION);
	}
	}
	}

	@Override
	public native boolean doCheckLlcp();

	@Override
	public native boolean doActivateLlcp();

	private native void doResetTimeouts();

	@Override
	public void resetTimeouts() {
	doResetTimeouts();
	}

	@Override
	public native void doAbort();

	private native boolean doSetTimeout(int tech, int timeout);
	@Override
	public boolean setTimeout(int tech, int timeout) {
	return doSetTimeout(tech, timeout);
	}

	private native int doGetTimeout(int tech);
	@Override
	public int getTimeout(int tech) {
	return doGetTimeout(tech);
	}


	@Override
	public boolean canMakeReadOnly(int ndefType) {
	return (ndefType == Ndef.TYPE_1 \|\| ndefType == Ndef.TYPE_2 \|\|
	ndefType == Ndef.TYPE_MIFARE_CLASSIC);
	}

	@Override
	public int getMaxTransceiveLength(int technology) {
	switch (technology) {
	case (TagTechnology.NFC_A):
	case (TagTechnology.MIFARE_CLASSIC):
	case (TagTechnology.MIFARE_ULTRALIGHT):
	return 253; // PN544 RF buffer = 255 bytes, subtract two for CRC
	case (TagTechnology.NFC_B):
	return 0; // PN544 does not support transceive of raw NfcB
	case (TagTechnology.NFC_V):
	return 253; // PN544 RF buffer = 255 bytes, subtract two for CRC
	case (TagTechnology.ISO_DEP):
	/* The maximum length of a normal IsoDep frame consists of:
	* CLA, INS, P1, P2, LC, LE + 255 payload bytes = 261 bytes
	* such a frame is supported. Extended length frames however
	* are not supported.
	*/
	return 261; // Will be automatically split in two frames on the RF layer
	case (TagTechnology.NFC_F):
	return 252; // PN544 RF buffer = 255 bytes, subtract one for SoD, two for CRC
	default:
	return 0;
	}

	}

	private native void doSetP2pInitiatorModes(int modes);
	@Override
	public void setP2pInitiatorModes(int modes) {
	doSetP2pInitiatorModes(modes);
	}

	private native void doSetP2pTargetModes(int modes);
	@Override
	public void setP2pTargetModes(int modes) {
	doSetP2pTargetModes(modes);
	}

	@Override
	public boolean enableScreenOffSuspend() {
	// Snooze mode not supported on NXP silicon
	Log.i(TAG, "Snooze mode is not supported on NXP NFCC");
	return false;
	}

	@Override
	public boolean disableScreenOffSuspend() {
	// Snooze mode not supported on NXP silicon
	Log.i(TAG, "Snooze mode is not supported on NXP NFCC");
	return true;
	}

	@Override
	public boolean getExtendedLengthApdusSupported() {
	// Not supported on the PN544
	return false;
	}

	@Override
	public int getDefaultLlcpMiu() {
	return DEFAULT_LLCP_MIU;
	}

	@Override
	public int getDefaultLlcpRwSize() {
	return DEFAULT_LLCP_RWSIZE;
	}

	private native String doDump();
	@Override
	public String dump() {
	return doDump();
	}

	/**
	* Notifies Ndef Message (TODO: rename into notifyTargetDiscovered)
	*/
	private void notifyNdefMessageListeners(NativeNfcTag tag) {
	mListener.onRemoteEndpointDiscovered(tag);
	}

	/**
	* Notifies P2P Device detected, to activate LLCP link
	*/
	private void notifyLlcpLinkActivation(NativeP2pDevice device) {
	mListener.onLlcpLinkActivated(device);
	}

	/**
	* Notifies P2P Device detected, to activate LLCP link
	*/
	private void notifyLlcpLinkDeactivated(NativeP2pDevice device) {
	mListener.onLlcpLinkDeactivated(device);
	}

	private void notifyRfFieldActivated() {
	mListener.onRemoteFieldActivated();
	}

	private void notifyRfFieldDeactivated() {
	mListener.onRemoteFieldDeactivated();
	}
	}