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Diffstat (limited to 'nci/jni/NfcTag.h')
| -rwxr-xr-x | nci/jni/NfcTag.h | 419 |
1 files changed, 419 insertions, 0 deletions
diff --git a/nci/jni/NfcTag.h b/nci/jni/NfcTag.h new file mode 100755 index 0000000..7fa56ee --- /dev/null +++ b/nci/jni/NfcTag.h @@ -0,0 +1,419 @@ +/* + * Copyright (C) 2012 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. + */ + +/* + * Tag-reading, tag-writing operations. + */ + +#pragma once +#include "SyncEvent.h" +#include "NfcJniUtil.h" +extern "C" +{ + #include "nfa_rw_api.h" +} + + +class NfcTag +{ +public: + enum ActivationState {Idle, Sleep, Active}; + static const int MAX_NUM_TECHNOLOGY = 10; //max number of technologies supported by one or more tags + int mTechList [MAX_NUM_TECHNOLOGY]; //array of NFC technologies according to NFC service + int mTechHandles [MAX_NUM_TECHNOLOGY]; //array of tag handles according to NFC service + int mTechLibNfcTypes [MAX_NUM_TECHNOLOGY]; //array of detailed tag types according to NFC service + int mNumTechList; //current number of NFC technologies in the list + + /******************************************************************************* + ** + ** Function: NfcTag + ** + ** Description: Initialize member variables. + ** + ** Returns: None + ** + *******************************************************************************/ + NfcTag (); + + + /******************************************************************************* + ** + ** Function: getInstance + ** + ** Description: Get a reference to the singleton NfcTag object. + ** + ** Returns: Reference to NfcTag object. + ** + *******************************************************************************/ + static NfcTag& getInstance (); + + + /******************************************************************************* + ** + ** Function: initialize + ** + ** Description: Reset member variables. + ** native: Native data. + ** Returns: None + ** + *******************************************************************************/ + void initialize (nfc_jni_native_data* native); + + + /******************************************************************************* + ** + ** Function: abort + ** + ** Description: Unblock all operations. + ** + ** Returns: None + ** + *******************************************************************************/ + void abort (); + + + /******************************************************************************* + ** + ** Function: connectionEventHandler + ** + ** Description: Handle connection-related events. + ** event: event code. + ** data: pointer to event data. + ** + ** Returns: None + ** + *******************************************************************************/ + void connectionEventHandler (UINT8 event, tNFA_CONN_EVT_DATA* data); + + + /******************************************************************************* + ** + ** Function: getActivationState + ** + ** Description: What is the current state: Idle, Sleep, or Activated. + ** + ** Returns: Idle, Sleep, or Activated. + ** + *******************************************************************************/ + ActivationState getActivationState (); + + + /******************************************************************************* + ** + ** Function: setDeactivationState + ** + ** Description: Set the current state: Idle or Sleep. + ** deactivated: state of deactivation. + ** + ** Returns: None. + ** + *******************************************************************************/ + void setDeactivationState (tNFA_DEACTIVATED& deactivated); + + + /******************************************************************************* + ** + ** Function: setActivationState + ** + ** Description: Set the current state to Active. + ** + ** Returns: None. + ** + *******************************************************************************/ + void setActivationState (); + + /******************************************************************************* + ** + ** Function: getProtocol + ** + ** Description: Get the protocol of the current tag. + ** + ** Returns: Protocol number. + ** + *******************************************************************************/ + tNFC_PROTOCOL getProtocol (); + + + /******************************************************************************* + ** + ** Function: isP2pDiscovered + ** + ** Description: Does the peer support P2P? + ** + ** Returns: True if the peer supports P2P. + ** + *******************************************************************************/ + bool isP2pDiscovered (); + + + /******************************************************************************* + ** + ** Function: selectP2p + ** + ** Description: Select the preferred P2P technology if there is a choice. + ** + ** Returns: None + ** + *******************************************************************************/ + void selectP2p (); + + + /******************************************************************************* + ** + ** Function: selectFirstTag + ** + ** Description: When multiple tags are discovered, just select the first one to activate. + ** + ** Returns: None + ** + *******************************************************************************/ + void selectFirstTag (); + + + /******************************************************************************* + ** + ** Function: getT1tMaxMessageSize + ** + ** Description: Get the maximum size (octet) that a T1T can store. + ** + ** Returns: Maximum size in octets. + ** + *******************************************************************************/ + int getT1tMaxMessageSize (); + + + /******************************************************************************* + ** + ** Function: isMifareUltralight + ** + ** Description: Whether the currently activated tag is Mifare Ultralight. + ** + ** Returns: True if tag is Mifare Ultralight. + ** + *******************************************************************************/ + bool isMifareUltralight (); + + + /******************************************************************************* + ** + ** Function: isT2tNackResponse + ** + ** Description: Whether the response is a T2T NACK response. + ** See NFC Digital Protocol Technical Specification (2010-11-17). + ** Chapter 9 (Type 2 Tag Platform), section 9.6 (READ). + ** response: buffer contains T2T response. + ** responseLen: length of the response. + ** + ** Returns: True if the response is NACK + ** + *******************************************************************************/ + bool isT2tNackResponse (const UINT8* response, UINT32 responseLen); + + /******************************************************************************* + ** + ** Function: isNdefDetectionTimedOut + ** + ** Description: Whether NDEF-detection algorithm has timed out. + ** + ** Returns: True if NDEF-detection algorithm timed out. + ** + *******************************************************************************/ + bool isNdefDetectionTimedOut (); + +private: + nfc_jni_native_data* mNativeData; + ActivationState mActivationState; + tNFC_PROTOCOL mProtocol; + int mtT1tMaxMessageSize; //T1T max NDEF message size + tNFA_STATUS mReadCompletedStatus; + int mLastKovioUidLen; // len of uid of last Kovio tag activated + bool mNdefDetectionTimedOut; // whether NDEF detection algorithm timed out + tNFC_RF_TECH_PARAMS mTechParams [MAX_NUM_TECHNOLOGY]; //array of technology parameters + SyncEvent mReadCompleteEvent; + struct timespec mLastKovioTime; // time of last Kovio tag activation + UINT8 mLastKovioUid[NFC_KOVIO_MAX_LEN]; // uid of last Kovio tag activated + + + /******************************************************************************* + ** + ** Function: IsSameKovio + ** + ** Description: Checks if tag activate is the same (UID) Kovio tag previously + ** activated. This is needed due to a problem with some Kovio + ** tags re-activating multiple times. + ** activationData: data from activation. + ** + ** Returns: true if the activation is from the same tag previously + ** activated, false otherwise + ** + *******************************************************************************/ + bool IsSameKovio(tNFA_ACTIVATED& activationData); + + /******************************************************************************* + ** + ** Function: discoverTechnologies + ** + ** Description: Discover the technologies that NFC service needs by interpreting + ** the data strucutures from the stack. + ** activationData: data from activation. + ** + ** Returns: None + ** + *******************************************************************************/ + void discoverTechnologies (tNFA_ACTIVATED& activationData); + + + /******************************************************************************* + ** + ** Function: discoverTechnologies + ** + ** Description: Discover the technologies that NFC service needs by interpreting + ** the data strucutures from the stack. + ** discoveryData: data from discovery events(s). + ** + ** Returns: None + ** + *******************************************************************************/ + void discoverTechnologies (tNFA_DISC_RESULT& discoveryData); + + + /******************************************************************************* + ** + ** Function: createNativeNfcTag + ** + ** Description: Create a brand new Java NativeNfcTag object; + ** fill the objects's member variables with data; + ** notify NFC service; + ** activationData: data from activation. + ** + ** Returns: None + ** + *******************************************************************************/ + void createNativeNfcTag (tNFA_ACTIVATED& activationData); + + + /******************************************************************************* + ** + ** Function: fillNativeNfcTagMembers1 + ** + ** Description: Fill NativeNfcTag's members: mProtocols, mTechList, mTechHandles, mTechLibNfcTypes. + ** e: JVM environment. + ** tag_cls: Java NativeNfcTag class. + ** tag: Java NativeNfcTag object. + ** + ** Returns: None + ** + *******************************************************************************/ + void fillNativeNfcTagMembers1 (JNIEnv* e, jclass tag_cls, jobject tag); + + + /******************************************************************************* + ** + ** Function: fillNativeNfcTagMembers2 + ** + ** Description: Fill NativeNfcTag's members: mConnectedTechIndex or mConnectedTechnology. + ** The original Google's implementation is in set_target_pollBytes( + ** in com_android_nfc_NativeNfcTag.cpp; + ** e: JVM environment. + ** tag_cls: Java NativeNfcTag class. + ** tag: Java NativeNfcTag object. + ** activationData: data from activation. + ** + ** Returns: None + ** + *******************************************************************************/ + void fillNativeNfcTagMembers2 (JNIEnv* e, jclass tag_cls, jobject tag, tNFA_ACTIVATED& activationData); + + + /******************************************************************************* + ** + ** Function: fillNativeNfcTagMembers3 + ** + ** Description: Fill NativeNfcTag's members: mTechPollBytes. + ** The original Google's implementation is in set_target_pollBytes( + ** in com_android_nfc_NativeNfcTag.cpp; + ** e: JVM environment. + ** tag_cls: Java NativeNfcTag class. + ** tag: Java NativeNfcTag object. + ** activationData: data from activation. + ** + ** Returns: None + ** + *******************************************************************************/ + void fillNativeNfcTagMembers3 (JNIEnv* e, jclass tag_cls, jobject tag, tNFA_ACTIVATED& activationData); + + + /******************************************************************************* + ** + ** Function: fillNativeNfcTagMembers4 + ** + ** Description: Fill NativeNfcTag's members: mTechActBytes. + ** The original Google's implementation is in set_target_activationBytes() + ** in com_android_nfc_NativeNfcTag.cpp; + ** e: JVM environment. + ** tag_cls: Java NativeNfcTag class. + ** tag: Java NativeNfcTag object. + ** activationData: data from activation. + ** + ** Returns: None + ** + *******************************************************************************/ + void fillNativeNfcTagMembers4 (JNIEnv* e, jclass tag_cls, jobject tag, tNFA_ACTIVATED& activationData); + + + /******************************************************************************* + ** + ** Function: fillNativeNfcTagMembers5 + ** + ** Description: Fill NativeNfcTag's members: mUid. + ** The original Google's implementation is in nfc_jni_Discovery_notification_callback() + ** in com_android_nfc_NativeNfcManager.cpp; + ** e: JVM environment. + ** tag_cls: Java NativeNfcTag class. + ** tag: Java NativeNfcTag object. + ** activationData: data from activation. + ** + ** Returns: None + ** + *******************************************************************************/ + void fillNativeNfcTagMembers5 (JNIEnv* e, jclass tag_cls, jobject tag, tNFA_ACTIVATED& activationData); + + + /******************************************************************************* + ** + ** Function: resetTechnologies + ** + ** Description: Clear all data related to the technology, protocol of the tag. + ** + ** Returns: None + ** + *******************************************************************************/ + void resetTechnologies (); + + + /******************************************************************************* + ** + ** Function: calculateT1tMaxMessageSize + ** + ** Description: Calculate type-1 tag's max message size based on header ROM bytes. + ** activate: reference to activation data. + ** + ** Returns: None + ** + *******************************************************************************/ + void calculateT1tMaxMessageSize (tNFA_ACTIVATED& activate); +}; + |