File content as of revision 14:3b604972b89f:

/**
  ******************************************************************************
  * @file       Sample_writeAndChangeAll.cpp
  * @author     ST / Central Labs
  * @date       03 Dic 2015
  * @brief      This demo write an ndef message different records, when the user press the buttun
  *             read the tag, change some data and write it again
  ******************************************************************************
  *
  * COPYRIGHT(c) 2015 STMicroelectronics
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:
  *   1. Redistributions of source code must retain the above copyright notice,
  *      this list of conditions and the following disclaimer.
  *   2. Redistributions in binary form must reproduce the above copyright notice,
  *      this list of conditions and the following disclaimer in the documentation
  *      and/or other materials provided with the distribution.
  *   3. Neither the name of STMicroelectronics nor the names of its contributors
  *      may be used to endorse or promote products derived from this software
  *      without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  ******************************************************************************
  */
  
#include "mbed.h"

#include "NDefLib/NDefNfcTag.h"

#include "NDefLib/RecordType/RecordAAR.h"
#include "NDefLib/RecordType/RecordSMS.h"
#include "NDefLib/RecordType/RecordGeo.h"
#include "NDefLib/RecordType/RecordURI.h"
#include "NDefLib/RecordType/RecordMail.h"
#include "NDefLib/RecordType/RecordText.h"
#include "NDefLib/RecordType/RecordMimeType.h"
#include "NDefLib/RecordType/RecordVCard.h"

#include "X_NUCLEO_NFC01A1.h"

/**
 * Shift the led status between the 3 leds.
 */
static void shiftLed(DigitalOut &led1,DigitalOut &led2,DigitalOut &led3){
    const uint8_t prevLed1=led1;
    const uint8_t prevLed2=led2;
    const uint8_t prevLed3=led3;
    led1=prevLed3;
    led2=prevLed1;
    led3=prevLed2;
}

/**
 * Print in the console some data about the record.
 * @param r Record to print.
 */
static void printRecord(NDefLib::Record *const r){
    using namespace NDefLib;
    switch(r->getType()){
        case Record::TYPE_TEXT: {
            const RecordText *const temp = ( RecordText* )r;
            printf("Read Text: %s\r\n",temp->getText().c_str());
            break; }
        case Record::TYPE_AAR:{
            const RecordAAR *const temp = ( RecordAAR* )r;
            printf("Read ARR: %s\r\n",temp->getPackage().c_str());
            break; }
        case Record::TYPE_MIME:{
            const RecordMimeType *const temp = ( RecordMimeType* )r;
            printf("Read mimeType: %s\r\n",temp->getMimeType().c_str());
            printf("Read mimeData: %s\r\n",
                    std::string((const char*)temp->getMimeData(),
                            temp->getMimeDataLenght()).c_str());
            break;}
        case Record::TYPE_URI:{
            RecordURI *const temp = (RecordURI*)r;
            printf("Read uriId: %d\r\n",temp->getUriId());
            printf("Read uriType: %s\r\n",temp->getUriType().c_str());
            printf("Read uriContent: %s\r\n",temp->getContent().c_str());
            break;}
        case Record::TYPE_URI_MAIL:{
            const RecordMail*const temp = (RecordMail*)r;
            printf("Read Dest: %s\r\n",temp->getToAddress().c_str());
            printf("Read Subject: %s\r\n",temp->getSubject().c_str());
            printf("Read Body: %s\r\n",temp->getBody().c_str());
            break;}
        case Record::TYPE_URI_SMS:{
            const RecordSMS*const temp = (RecordSMS*)r;
            printf("Read number: %s\r\n",temp->getNumber().c_str());
            printf("Read message: %s\r\n",temp->getMessagge().c_str());
            break;}
        case Record::TYPE_URI_GEOLOCATION:{
            const RecordGeo*const temp = (RecordGeo*)r;
            printf("Read lat: %f\r\n",temp->getLatitude());
            printf("Read long: %f\r\n",temp->getLongitude());
            break;}
        case Record::TYPE_MIME_VCARD:{
            const RecordVCard *const temp = (RecordVCard*)r;
            printf("Read Name: %s\r\n",(*temp)[RecordVCard::NAME].c_str());
            printf("Read Mail: %s\r\n",(*temp)[RecordVCard::EMAIL_WORK].c_str());
            printf("Read ORG: %s\r\n",(*temp)[RecordVCard::ORGANIZATION].c_str());
            break;}
        case Record::TYPE_UNKNOWN:{
            printf("Unknown record\r\n");
            break;}
    }//switch
}//printRecord

/**
 * Change the record content.
 * @param r Record to change.
 */
static void changeRecord(NDefLib::Record const* r){
    using namespace NDefLib;
    switch(r->getType()){
        case Record::TYPE_TEXT: {
            RecordText *temp = (RecordText*)r;
            temp->setText("Hello");
            break; }
        case Record::TYPE_AAR:{
            RecordAAR *temp = (RecordAAR*)r;
            temp->setPackage("set Package Ok");
            break; }
        case Record::TYPE_MIME:{
            RecordMimeType *temp = (RecordMimeType*)r;
            temp->copyMimeData((const uint8_t *)"String2",sizeof("String2"));
            break;}
        case Record::TYPE_URI:{
            RecordURI *temp = (RecordURI*)r;
            temp->setContent("google.it");
            break;}
        case Record::TYPE_URI_MAIL:{
            RecordMail *temp = (RecordMail*)r;
            temp->setToAddress("newMail@st.com");
            temp->setSubject("tag change");
            temp->setBody("read/change Works!");
            break;}
        case Record::TYPE_URI_SMS:{
            RecordSMS *temp = (RecordSMS*)r;
            temp->setMessage("Message Change");
            temp->setNumber("0987654321");
            break;}
        case Record::TYPE_URI_GEOLOCATION:{
            RecordGeo *temp = (RecordGeo*)r;
            temp->setLatitude(-temp->getLatitude());
            temp->setLongitude(-temp->getLongitude());
            break;}
        case Record::TYPE_MIME_VCARD:{
            RecordVCard *temp = (RecordVCard*)r;
            (*temp)[RecordVCard::NAME]="name change";
            (*temp)[RecordVCard::NICKNAME]="nic change";
            break;}
        case Record::TYPE_UNKNOWN:{
            printf("Unknown record\r\n");
            break;}
    }//switch
}//changeRecord


/**
 * Class that print read a message and print it on console,
 * and enable the user button when it finish
 */
class ReadMessageCallback : public NDefLib::NDefNfcTag::Callbacks{

	NDefLib::Message *mMsg; /// Message where read
	bool *mDisableButton; /// enable the user button

	void onFinish(char *msg){
		printf(msg);
		*mDisableButton=false;
	}

public:
	/**
	 *
	 * @param disableEnable set to false when the read finish
	 */
	ReadMessageCallback(bool *disableEnable):mMsg(NULL),
		mDisableButton(disableEnable){}

	/**
	 * Create the message and ask to read it
	 */
	virtual void onSessionOpen(NDefLib::NDefNfcTag *tag,bool success){
		if(!success){
			return onFinish("Error Opening Session\r\n");
		}//if
		mMsg = new NDefLib::Message;
		tag->read(mMsg);
	}

	/**
	 * Print all the record inside the message
	 */
	virtual void onMessageRead(NDefLib::NDefNfcTag *tag,bool success,
			const NDefLib::Message *readMsg){
		if(!success || readMsg->getNRecords()==0){
			delete mMsg;
			return onFinish("Error Reading\r\n");
		}else{
			for(uint32_t i=0;i<readMsg->getNRecords();i++){
				NDefLib::Record *r = (*readMsg)[i];
				printRecord(r);
				delete r;
			}//for
			delete mMsg;
		}//if-else
		tag->closeSession();
	}

	/**
	 * Enable the button
	 */
	virtual void onSessionClose(NDefLib::NDefNfcTag *,bool success){
		if(success)
			onFinish("Read Session close\r\n");
		else
			onFinish("Read Session close Error\r\n");
	}

};

/**
 * Read the message, change some data and write it back
 */
class ChangeMessageCallback : public NDefLib::NDefNfcTag::Callbacks{

	ReadMessageCallback* mReadMessage;
	NDefLib::Message *mMsg;

	/**
	 * Change all the record in the message.
	 * @param readMsg Message to change.
	 */
	static void changeContent(const NDefLib::Message *readMsg){
		for(uint32_t i=0;i<readMsg->getNRecords();i++){
			changeRecord((*readMsg)[i]);
		}//for
	}//changeContent

	/**
	 * Delete all the record and the message.
	 */
	void deleteMessage(){
		for(uint32_t i=0;i<mMsg->getNRecords();i++){
			delete (*mMsg)[i];
		}//for
		delete mMsg;
	}//deleteMessage

public:

	/**
	 * @param readCallback Callback needed to print the tag content after the change
	 */
	ChangeMessageCallback(ReadMessageCallback* readCallback):
		mReadMessage(readCallback),mMsg(NULL){}

	/**
	 * Ask to read the tag content
	 */
	virtual void onSessionOpen(NDefLib::NDefNfcTag *tag,bool success){
		if(!success){
			printf("Error Opening the session");
			return;
		}//else
		mMsg = new NDefLib::Message;
		tag->read(mMsg);
	}

	/**
	 * Change the message content and write it back
	 */
	virtual void onMessageRead(NDefLib::NDefNfcTag *tag,bool success,
			const NDefLib::Message *readMsg){
		if(!success || readMsg->getNRecords()==0){
			printf("Error Reading\r\n");
			deleteMessage();
		}else{
			changeContent(readMsg);
			tag->write(*mMsg);
		}//if-else
	}

	/**
	 * Delete the Message and close the session
	 */
	virtual void onMessageWrite(NDefLib::NDefNfcTag *tag,bool success,
							const NDefLib::Message &){
		deleteMessage();
		if(success)
			tag->closeSession();
		else
			printf("Error Writing\r\n");
	}//onMessageWrite

	/**
	 * Set the callback for print the tag content and open a new session
	 */
	virtual void onSessionClose(NDefLib::NDefNfcTag *tag,bool success){
		if(success){
			printf("Change Session close\r\n");
			tag->setCallback(mReadMessage);
			tag->openSession();
		}else
			printf("Change Session close Error\r\n");
	}

};

/**
 * Create and write a message in a nfc tag
 */
class WriteMessageCallback : public NDefLib::NDefNfcTag::Callbacks{

	ReadMessageCallback* mReadMessage;

public:

	/**
	 *
	 * @param readCallback Callbacks to use for print the tag content
	 */
	WriteMessageCallback(ReadMessageCallback* readCallback):
		mReadMessage(readCallback){}

	/**
	 *
	 */
	virtual void onSessionOpen(NDefLib::NDefNfcTag *tag,bool success){
		if(!success){
			printf("Error Opening the Session\r\n");
			return;
		}//else

		//create the message
		 NDefLib::Message msg;

		NDefLib::RecordAAR rAAR("com.st.BlueMS");
		msg.addRecord(&rAAR);

		NDefLib::RecordSMS rSMS("123456789","st.com.BlueMS");
		msg.addRecord(&rSMS);

		NDefLib::RecordGeo rGeo(123.123,-456.789);
		msg.addRecord(&rGeo);

		NDefLib::RecordURI rUri(NDefLib::RecordURI::HTTP_WWW,"http://www.st.com");
		msg.addRecord(&rUri);

		NDefLib::RecordMail rMail("mail@st.com","ciao","da nfc tag");
		msg.addRecord(&rMail);

		NDefLib::RecordMimeType rText1("text/plain",(const uint8_t*)"Ciao",4);
		msg.addRecord(&rText1);

		NDefLib::RecordText rText3(NDefLib::RecordText::UTF8,"it","ciao");
		msg.addRecord(&rText3);

		NDefLib::RecordVCard::VCardInfo_t cardInfo;
		cardInfo[NDefLib::RecordVCard::FORMATTED_NAME]="prova prova1";
		cardInfo[NDefLib::RecordVCard::ADDRESS_HOME]=";;1 Main St.;Springfield;IL;12345;USA";
		cardInfo[NDefLib::RecordVCard::ADDRESS_WORK]=";;2 Main St.;Springfield;IL;12345;USA";
		cardInfo[NDefLib::RecordVCard::EMAIL_WORK]="workmail@st.com";
		cardInfo[NDefLib::RecordVCard::EMAIL_HOME]="homemail@st.com";
		cardInfo[NDefLib::RecordVCard::GEO]="39.95;-75.1667";
		cardInfo[NDefLib::RecordVCard::IMPP]="aim:johndoe@aol.com";
		cardInfo[NDefLib::RecordVCard::NAME]="prova2;prova3";
		cardInfo[NDefLib::RecordVCard::NICKNAME]="test";
		cardInfo[NDefLib::RecordVCard::NOTE]="A good test";
		cardInfo[NDefLib::RecordVCard::ORGANIZATION]="STM";
		cardInfo[NDefLib::RecordVCard::TEL_HOME]="123";
		cardInfo[NDefLib::RecordVCard::TEL_MOBILE]="456";
		cardInfo[NDefLib::RecordVCard::TEL_WORK]="789";
		cardInfo[NDefLib::RecordVCard::TITLE]="King";
		cardInfo[NDefLib::RecordVCard::URL]="www.st.com";
		cardInfo[NDefLib::RecordVCard::PHOTO_URI]="http://www.st.com/st-web-ui/static/active/en/fragment/multimedia/image/picture/customer_focus.jpg";
		NDefLib::RecordVCard rVCard(cardInfo);
		msg.addRecord(&rVCard);

		//write it
		tag->write(msg);
	}


	/**
	 * Close the session
	 */
	virtual void onMessageWrite(NDefLib::NDefNfcTag *tag,bool success,
						const NDefLib::Message &){
		if(!success)
			printf("Error Writing\r\n");

		tag->closeSession();
	}

	/**
	 * Set the callback to print the tag content and open a new session
	 */
	virtual void onSessionClose(NDefLib::NDefNfcTag *tag,bool success){
		if(success){
			printf("Write Session close\r\n");
			tag->setCallback(mReadMessage);
			tag->openSession();
		}else
			printf("Write Session close Error\r\n");
	}//onSessionClose

};


static volatile bool buttonPress=false; /// true when the user press the message

/**
 * Call back called when the user press the button
 */
static void setButtonPress(){
    buttonPress=true;
}//if buttonPress

static volatile bool nfcEvent=false; /// true if there is an nfc interrupt

/**
 * Call back called when the user press the button
 */
static void setNfcEvent(){
	nfcEvent=true;
}//if buttonPress

/**
 * Write a message and when the user press the button it read the message, change it and update it.
 */
void sampleAsync_writeAndChangeAll() {
    DigitalOut nucleoLed(LED1);
    
    //instance the board with the default parameters
    I2C i2cChannel(X_NUCLEO_NFC01A1::DEFAULT_SDA_PIN,X_NUCLEO_NFC01A1::DEFAULT_SDL_PIN);
    X_NUCLEO_NFC01A1 *nfcNucleo = X_NUCLEO_NFC01A1::Instance(i2cChannel,&setNfcEvent);

    //retrieve the Nfc component
    M24SR &nfc = nfcNucleo->getM24SR();
    //retrieve the NdefLib interface
    NDefLib::NDefNfcTag& tag = nfc.getNDefTag();

    //switch on the first led    
    nfcNucleo->getLed1()=1;
    nfcNucleo->getLed2()=0;
    nfcNucleo->getLed3()=0;

    ReadMessageCallback readMessageCallback(&buttonPress);
    WriteMessageCallback writeBigMessageCallback(&readMessageCallback);
    ChangeMessageCallback changeMessageCallback(&readMessageCallback);

    //Enable async mode
    if(nfcNucleo->getM24SR().GetSession()!=NFC_SUCCESS)
        	nfcNucleo->getM24SR().ManageI2CGPO(I2C_ANSWER_READY);

    //write the message
    tag.setCallback(&writeBigMessageCallback);
    tag.openSession();

    //enable the button
    InterruptIn mybutton(USER_BUTTON);
    mybutton.fall(setButtonPress);

    while(true) {
        if(buttonPress){
        	shiftLed(nfcNucleo->getLed1(),nfcNucleo->getLed2(),nfcNucleo->getLed3());
        	tag.setCallback(&changeMessageCallback);
        	tag.openSession();
        }else if (nfcEvent){
        	nucleoLed=!nucleoLed;
        	nfcNucleo->getM24SR().ManageEvent();
        }//if-else
        __WFE();
    }//while
}