Diff: Samples/sample_lockWriteTag.cpp

Revision:

8:a9ecd7687de7

Child:

9:9742acd0c015

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Samples/sample_lockWriteTag.cpp	Mon Dec 21 13:01:41 2015 +0000
@@ -0,0 +1,151 @@
+/**
+  ******************************************************************************
+  * @file       Sample_lockWriteTag.cpp
+  * @date       03/12/2015
+  * @brief      This demo define a lock/unlock the tag content when the user press
+  *  the user button
+  ******************************************************************************
+  *
+  * 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 "X_NUCLEO_NFC01A1.h"
+#include "Type4NfcTagM24SR.h"
+#include "NDefLib/RecordType/RecordText.h"
+
+static volatile bool buttonPress=false;
+
+static void setButtonPress(){
+    buttonPress=true;
+}//if buttonPress
+
+/**
+ * return the led that tell if the tag is read only
+ * @param nfcNucleo board where the lead lives
+ * @return let to switch on if the tag is read only
+ */
+static inline DigitalOut& getReadOnlyLed(X_NUCLEO_NFC01A1 *nfcNucleo){
+	return nfcNucleo->getLed2();
+}
+
+/**
+ * return the led that tell if the tag is write only
+ * @param nfcNucleo board where the lead lives
+ * @return let to switch on if the tag is write only
+ */
+static inline DigitalOut& getWriteableLed(X_NUCLEO_NFC01A1 *nfcNucleo){
+	return nfcNucleo->getLed3();
+}
+
+/**
+ * set the tag as read only and switch the led on
+ * @param nfcNucleo board where the lead lives
+ * @param tag helper class for manage the nfc tag
+ * @return true if the change has effect
+ */
+bool enableReadOnly( X_NUCLEO_NFC01A1 *nfcNucleo,Type4NfcTagM24SR &tag){
+
+	if(tag.enableReadOnly()){
+		getReadOnlyLed(nfcNucleo)=true;
+		getWriteableLed(nfcNucleo)=false;
+		return true;
+	}else
+		return false;
+}
+
+/**
+ * set the tag as read/write and switch the led on
+ * @param nfcNucleo board where the lead lives
+ * @param tag helper class for manage the nfc tag
+ * @return true if the change has effect
+ */
+bool disableReadOnly( X_NUCLEO_NFC01A1 *nfcNucleo,Type4NfcTagM24SR &tag){
+
+	if(tag.disableReadOnly()){
+		getReadOnlyLed(nfcNucleo)=false;
+		getWriteableLed(nfcNucleo)=true;
+		return true;
+	}else
+		return false;
+}
+
+void sample_lockTagContent() {
+	Serial console(SERIAL_TX, SERIAL_RX);
+
+    I2C i2cChannel(X_NUCLEO_NFC01A1::DEFAULT_SDA_PIN,X_NUCLEO_NFC01A1::DEFAULT_SDL_PIN);
+
+    X_NUCLEO_NFC01A1 *nfcNucleo = X_NUCLEO_NFC01A1::Instance(i2cChannel);
+    //create the wrapper for use the NdefLib
+    Type4NfcTagM24SR tag(nfcNucleo->getM24SR());
+
+    //when the user press the button set buttonPress to true
+    InterruptIn userButton(USER_BUTTON);
+    userButton.fall(setButtonPress);
+
+    //restore the board as read/write
+    tag.openSession(true);
+    nfcNucleo->getLed1()=tag.disableAllPassword();
+    tag.closeSession();
+    getReadOnlyLed(nfcNucleo)=false;
+    getWriteableLed(nfcNucleo)=true;
+    bool tagIsLock=false;
+
+
+    while(true){
+
+        if(buttonPress){
+        	if(tag.openSession()){
+        		bool changeStatusResult;
+
+				if(tagIsLock)
+					changeStatusResult=enableReadOnly(nfcNucleo,tag);
+				else
+					changeStatusResult=disableReadOnly(nfcNucleo,tag);
+
+				if(changeStatusResult)
+					tagIsLock=!tagIsLock;
+				else
+					console.printf("Error change the tag status");
+				tag.closeSession();
+        	}else{
+        		console.printf("Error opening the session, tag is in use");
+        	}
+        	buttonPress=false;
+        }//if
+
+        //wait next event
+        __WFE();
+    }//while
+
+}//sample_countClick
+
+
+
+
+