Chris Evich / PN532

Generic library for working with PN532-like chips

Fork of PN532 by Seeed

emulatetag.h@11:5b8afec8bee6, 2015-02-04 (annotated)

Committer:
r4z0r7o3
Date:
Wed Feb 04 19:26:03 2015 +0000
Revision:
11:5b8afec8bee6
Parent:
3:4189a10038e6 
Fix missing space in tag print()

Who changed what in which revision?

UserRevisionLine numberNew contents of line
yihui 3:4189a10038e6 1 /**************************************************************************/
yihui 3:4189a10038e6 2 /*!
yihui 3:4189a10038e6 3 @file emulatetag.h
yihui 3:4189a10038e6 4 @author Armin Wieser
yihui 3:4189a10038e6 5 @license BSD
yihui 3:4189a10038e6 6
yihui 3:4189a10038e6 7 Implemented using NFC forum documents & library of libnfc
yihui 3:4189a10038e6 8 */
yihui 3:4189a10038e6 9 /**************************************************************************/
yihui 3:4189a10038e6 10
yihui 3:4189a10038e6 11
yihui 3:4189a10038e6 12 #ifndef __EMULATETAG_H__
yihui 3:4189a10038e6 13 #define __EMULATETAG_H__
yihui 3:4189a10038e6 14
yihui 3:4189a10038e6 15 #include "PN532.h"
yihui 3:4189a10038e6 16
yihui 3:4189a10038e6 17 #define NDEF_MAX_LENGTH 128 // altough ndef can handle up to 0xfffe in size, arduino cannot.
yihui 3:4189a10038e6 18 typedef enum {COMMAND_COMPLETE, TAG_NOT_FOUND, FUNCTION_NOT_SUPPORTED, MEMORY_FAILURE, END_OF_FILE_BEFORE_REACHED_LE_BYTES} responseCommand;
yihui 3:4189a10038e6 19
yihui 3:4189a10038e6 20 class EmulateTag{
yihui 3:4189a10038e6 21
yihui 3:4189a10038e6 22 public:
yihui 3:4189a10038e6 23 EmulateTag(PN532Interface &interface) : pn532(interface), uidPtr(0), tagWrittenByInitiator(false) { }
yihui 3:4189a10038e6 24
yihui 3:4189a10038e6 25 bool init();
yihui 3:4189a10038e6 26
yihui 3:4189a10038e6 27 bool emulate(const uint16_t tgInitAsTargetTimeout = 0);
yihui 3:4189a10038e6 28
yihui 3:4189a10038e6 29 /*
yihui 3:4189a10038e6 30 * @param uid pointer to byte array of length 3 (uid is 4 bytes - first byte is fixed) or zero for uid
yihui 3:4189a10038e6 31 */
yihui 3:4189a10038e6 32 void setUid(uint8_t* uid = 0);
yihui 3:4189a10038e6 33
yihui 3:4189a10038e6 34 void setNdefFile(const uint8_t* ndef, const int16_t ndefLength);
yihui 3:4189a10038e6 35
yihui 3:4189a10038e6 36 void getContent(uint8_t** buf, uint16_t* length){
yihui 3:4189a10038e6 37 *buf = ndef_file + 2; // first 2 bytes = length
yihui 3:4189a10038e6 38 *length = (ndef_file[1] << 8) + ndef_file[0];
yihui 3:4189a10038e6 39 }
yihui 3:4189a10038e6 40
yihui 3:4189a10038e6 41 bool writeOccured(){
yihui 3:4189a10038e6 42 return tagWrittenByInitiator;
yihui 3:4189a10038e6 43 }
yihui 3:4189a10038e6 44
yihui 3:4189a10038e6 45 private:
yihui 3:4189a10038e6 46 PN532 pn532;
yihui 3:4189a10038e6 47 uint8_t ndef_file[NDEF_MAX_LENGTH];
yihui 3:4189a10038e6 48 uint8_t* uidPtr;
yihui 3:4189a10038e6 49 void setResponse(responseCommand cmd, uint8_t* buf, uint8_t* sendlen, uint8_t sendlenOffset =0);
yihui 3:4189a10038e6 50 bool tagWrittenByInitiator;
yihui 3:4189a10038e6 51 };
yihui 3:4189a10038e6 52
yihui 3:4189a10038e6 53 #endif