ST / NDefLib

Utility library to read and write Ndef messages from/to a Type4 NFC tag

Dependents:   NFC M2M_2016_STM32 MyongjiElec_capstone1 IDW01M1_Cloud_IBM ... more

Fork of NDefLib by ST Expansion SW Team

NDEF NFC library

This library provides an abstract API to create NDEF formatted messages and records and to read/write them from/to a Type4 NFC Tag.

Implementations

At the moment, the NDEF API is implemented by X_NUCLEO_NFC01A1 and X_NUCLEO_NFC02A1 Dynamic NFC Tag libraries respectively driving the X-NUCLEO-NFC01A1 and X-NUCLEO-NFC02A1 boards.

RecordType/RecordText.h@0:04b82ae7aa43, 2015-11-19 (annotated)

Committer:
giovannivisentini
Date:
Thu Nov 19 08:49:47 2015 +0000
Revision:
0:04b82ae7aa43
Child:
1:a0eeb478a45a
First Version, the tag is only write

Who changed what in which revision?

UserRevisionLine numberNew contents of line
giovannivisentini 0:04b82ae7aa43 1 /*
giovannivisentini 0:04b82ae7aa43 2 * RecordText.h
giovannivisentini 0:04b82ae7aa43 3 *
giovannivisentini 0:04b82ae7aa43 4 * Created on: Nov 17, 2015
giovannivisentini 0:04b82ae7aa43 5 * Author: giovanni visentini
giovannivisentini 0:04b82ae7aa43 6 */
giovannivisentini 0:04b82ae7aa43 7
giovannivisentini 0:04b82ae7aa43 8 #ifndef NDEFLIB_RECORDTYPE_RECORDTEXT_H_
giovannivisentini 0:04b82ae7aa43 9 #define NDEFLIB_RECORDTYPE_RECORDTEXT_H_
giovannivisentini 0:04b82ae7aa43 10 #include <string>
giovannivisentini 0:04b82ae7aa43 11 #include <NDefLib/Record.h>
giovannivisentini 0:04b82ae7aa43 12
giovannivisentini 0:04b82ae7aa43 13 namespace NDefLib {
giovannivisentini 0:04b82ae7aa43 14
giovannivisentini 0:04b82ae7aa43 15 class RecordText: public Record {
giovannivisentini 0:04b82ae7aa43 16 public:
giovannivisentini 0:04b82ae7aa43 17
giovannivisentini 0:04b82ae7aa43 18 static RecordText* parse(uint8_t *buffer);
giovannivisentini 0:04b82ae7aa43 19
giovannivisentini 0:04b82ae7aa43 20 typedef enum {
giovannivisentini 0:04b82ae7aa43 21 UTF8,
giovannivisentini 0:04b82ae7aa43 22 UTF16,
giovannivisentini 0:04b82ae7aa43 23 }TextEncoding;
giovannivisentini 0:04b82ae7aa43 24
giovannivisentini 0:04b82ae7aa43 25 /**
giovannivisentini 0:04b82ae7aa43 26 * utf8 en message
giovannivisentini 0:04b82ae7aa43 27 */
giovannivisentini 0:04b82ae7aa43 28 RecordText(const std::string &text);
giovannivisentini 0:04b82ae7aa43 29 RecordText(const TextEncoding encoding,const std::string &language,const std::string &text);
giovannivisentini 0:04b82ae7aa43 30 virtual uint16_t write(uint8_t *buffer);
giovannivisentini 0:04b82ae7aa43 31 virtual ~RecordText(){};
giovannivisentini 0:04b82ae7aa43 32 private:
giovannivisentini 0:04b82ae7aa43 33
giovannivisentini 0:04b82ae7aa43 34 void setRecordHeader();
giovannivisentini 0:04b82ae7aa43 35
giovannivisentini 0:04b82ae7aa43 36 static uint8_t getTextStatus(TextEncoding enc,const std::string &language){
giovannivisentini 0:04b82ae7aa43 37 uint8_t status = language.size();
giovannivisentini 0:04b82ae7aa43 38 if (enc == UTF16){
giovannivisentini 0:04b82ae7aa43 39 status &= 0x80; // set to 1 the bit 7
giovannivisentini 0:04b82ae7aa43 40 }//if
giovannivisentini 0:04b82ae7aa43 41 return status;
giovannivisentini 0:04b82ae7aa43 42 }//getTextStatus
giovannivisentini 0:04b82ae7aa43 43
giovannivisentini 0:04b82ae7aa43 44 static TextEncoding getEncoding(const uint8_t textStatus){
giovannivisentini 0:04b82ae7aa43 45 if((textStatus & 0x80)==0)
giovannivisentini 0:04b82ae7aa43 46 return UTF8;
giovannivisentini 0:04b82ae7aa43 47 else
giovannivisentini 0:04b82ae7aa43 48 return UTF16;
giovannivisentini 0:04b82ae7aa43 49 }
giovannivisentini 0:04b82ae7aa43 50
giovannivisentini 0:04b82ae7aa43 51 static uint8_t getLanguageLength(const uint8_t textStatus){
giovannivisentini 0:04b82ae7aa43 52 //take the fist 5 bits
giovannivisentini 0:04b82ae7aa43 53 return textStatus & 0x1F;
giovannivisentini 0:04b82ae7aa43 54 }
giovannivisentini 0:04b82ae7aa43 55
giovannivisentini 0:04b82ae7aa43 56 const TextEncoding mEncode;
giovannivisentini 0:04b82ae7aa43 57 const std::string mLanguage;
giovannivisentini 0:04b82ae7aa43 58 const std::string mText;
giovannivisentini 0:04b82ae7aa43 59 uint8_t mTextStatus;
giovannivisentini 0:04b82ae7aa43 60
giovannivisentini 0:04b82ae7aa43 61 static const uint8_t NDEFTextIdCode;
giovannivisentini 0:04b82ae7aa43 62
giovannivisentini 0:04b82ae7aa43 63 };
giovannivisentini 0:04b82ae7aa43 64
giovannivisentini 0:04b82ae7aa43 65 } /* namespace NDefLib */
giovannivisentini 0:04b82ae7aa43 66
giovannivisentini 0:04b82ae7aa43 67 #endif /* NDEFLIB_RECORDTYPE_RECORDTEXT_H_ */
giovannivisentini 0:04b82ae7aa43 68