NFC library using PN532 to read/write NDEF Messages to NFC tags
Dependents: Seeed_NFC_Shield_write Nucleo_test_nfc
Fork of PN532 by
NfcTag.cpp@6:26c1b3b6c192, 2014-03-25 (annotated)
- Committer:
- screamer
- Date:
- Tue Mar 25 16:48:10 2014 +0000
- Revision:
- 6:26c1b3b6c192
- Parent:
- 3:4189a10038e6
Fixed compile warnings
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
yihui | 3:4189a10038e6 | 1 | #include <NfcTag.h> |
yihui | 3:4189a10038e6 | 2 | #include <string.h> |
yihui | 3:4189a10038e6 | 3 | #include <PN532_debug.h> |
yihui | 3:4189a10038e6 | 4 | |
yihui | 3:4189a10038e6 | 5 | NfcTag::NfcTag() |
yihui | 3:4189a10038e6 | 6 | { |
yihui | 3:4189a10038e6 | 7 | _uid = 0; |
yihui | 3:4189a10038e6 | 8 | _uidLength = 0; |
yihui | 3:4189a10038e6 | 9 | _tagType = "Unknown"; |
yihui | 3:4189a10038e6 | 10 | _ndefMessage = (NdefMessage*)NULL; |
yihui | 3:4189a10038e6 | 11 | } |
yihui | 3:4189a10038e6 | 12 | |
yihui | 3:4189a10038e6 | 13 | NfcTag::NfcTag(uint8_t *uid, unsigned int uidLength) |
yihui | 3:4189a10038e6 | 14 | { |
yihui | 3:4189a10038e6 | 15 | _uid = uid; |
yihui | 3:4189a10038e6 | 16 | _uidLength = uidLength; |
yihui | 3:4189a10038e6 | 17 | _tagType = "Unknown"; |
yihui | 3:4189a10038e6 | 18 | _ndefMessage = (NdefMessage*)NULL; |
yihui | 3:4189a10038e6 | 19 | } |
yihui | 3:4189a10038e6 | 20 | |
yihui | 3:4189a10038e6 | 21 | NfcTag::NfcTag(uint8_t *uid, unsigned int uidLength, string tagType) |
yihui | 3:4189a10038e6 | 22 | { |
yihui | 3:4189a10038e6 | 23 | _uid = uid; |
yihui | 3:4189a10038e6 | 24 | _uidLength = uidLength; |
yihui | 3:4189a10038e6 | 25 | _tagType = tagType; |
yihui | 3:4189a10038e6 | 26 | _ndefMessage = (NdefMessage*)NULL; |
yihui | 3:4189a10038e6 | 27 | } |
yihui | 3:4189a10038e6 | 28 | |
yihui | 3:4189a10038e6 | 29 | NfcTag::NfcTag(uint8_t *uid, unsigned int uidLength, string tagType, NdefMessage& ndefMessage) |
yihui | 3:4189a10038e6 | 30 | { |
yihui | 3:4189a10038e6 | 31 | _uid = uid; |
yihui | 3:4189a10038e6 | 32 | _uidLength = uidLength; |
yihui | 3:4189a10038e6 | 33 | _tagType = tagType; |
yihui | 3:4189a10038e6 | 34 | _ndefMessage = new NdefMessage(ndefMessage); |
yihui | 3:4189a10038e6 | 35 | } |
yihui | 3:4189a10038e6 | 36 | |
yihui | 3:4189a10038e6 | 37 | // I don't like this version, but it will use less memory |
yihui | 3:4189a10038e6 | 38 | NfcTag::NfcTag(uint8_t *uid, unsigned int uidLength, string tagType, const uint8_t *ndefData, const int ndefDataLength) |
yihui | 3:4189a10038e6 | 39 | { |
yihui | 3:4189a10038e6 | 40 | _uid = uid; |
yihui | 3:4189a10038e6 | 41 | _uidLength = uidLength; |
yihui | 3:4189a10038e6 | 42 | _tagType = tagType; |
yihui | 3:4189a10038e6 | 43 | _ndefMessage = new NdefMessage(ndefData, ndefDataLength); |
yihui | 3:4189a10038e6 | 44 | } |
yihui | 3:4189a10038e6 | 45 | |
yihui | 3:4189a10038e6 | 46 | NfcTag::~NfcTag() |
yihui | 3:4189a10038e6 | 47 | { |
yihui | 3:4189a10038e6 | 48 | delete _ndefMessage; |
yihui | 3:4189a10038e6 | 49 | } |
yihui | 3:4189a10038e6 | 50 | |
yihui | 3:4189a10038e6 | 51 | NfcTag& NfcTag::operator=(const NfcTag& rhs) |
yihui | 3:4189a10038e6 | 52 | { |
yihui | 3:4189a10038e6 | 53 | if (this != &rhs) |
yihui | 3:4189a10038e6 | 54 | { |
yihui | 3:4189a10038e6 | 55 | delete _ndefMessage; |
yihui | 3:4189a10038e6 | 56 | _uid = rhs._uid; |
yihui | 3:4189a10038e6 | 57 | _uidLength = rhs._uidLength; |
yihui | 3:4189a10038e6 | 58 | _tagType = rhs._tagType; |
yihui | 3:4189a10038e6 | 59 | // TODO do I need a copy here? |
yihui | 3:4189a10038e6 | 60 | _ndefMessage = rhs._ndefMessage; |
yihui | 3:4189a10038e6 | 61 | } |
yihui | 3:4189a10038e6 | 62 | return *this; |
yihui | 3:4189a10038e6 | 63 | } |
yihui | 3:4189a10038e6 | 64 | |
yihui | 3:4189a10038e6 | 65 | uint8_t NfcTag::getUidLength() |
yihui | 3:4189a10038e6 | 66 | { |
yihui | 3:4189a10038e6 | 67 | return _uidLength; |
yihui | 3:4189a10038e6 | 68 | } |
yihui | 3:4189a10038e6 | 69 | |
yihui | 3:4189a10038e6 | 70 | void NfcTag::getUid(uint8_t *uid, unsigned int uidLength) |
yihui | 3:4189a10038e6 | 71 | { |
yihui | 3:4189a10038e6 | 72 | memcpy(_uid, uid, uidLength); |
yihui | 3:4189a10038e6 | 73 | } |
yihui | 3:4189a10038e6 | 74 | |
yihui | 3:4189a10038e6 | 75 | string NfcTag::getUidString() |
yihui | 3:4189a10038e6 | 76 | { |
yihui | 3:4189a10038e6 | 77 | string uidString = ""; |
yihui | 3:4189a10038e6 | 78 | #if 0 |
yihui | 3:4189a10038e6 | 79 | for (int i = 0; i < _uidLength; i++) |
yihui | 3:4189a10038e6 | 80 | { |
yihui | 3:4189a10038e6 | 81 | if (i > 0) |
yihui | 3:4189a10038e6 | 82 | { |
yihui | 3:4189a10038e6 | 83 | uidString += " "; |
yihui | 3:4189a10038e6 | 84 | } |
yihui | 3:4189a10038e6 | 85 | |
yihui | 3:4189a10038e6 | 86 | if (_uid[i] < 0xF) |
yihui | 3:4189a10038e6 | 87 | { |
yihui | 3:4189a10038e6 | 88 | uidString += "0"; |
yihui | 3:4189a10038e6 | 89 | } |
yihui | 3:4189a10038e6 | 90 | |
yihui | 3:4189a10038e6 | 91 | uidString += string((unsigned int)_uid[i], 16); |
yihui | 3:4189a10038e6 | 92 | } |
yihui | 3:4189a10038e6 | 93 | uidString.toUpperCase(); |
yihui | 3:4189a10038e6 | 94 | #endif |
yihui | 3:4189a10038e6 | 95 | return uidString; |
yihui | 3:4189a10038e6 | 96 | } |
yihui | 3:4189a10038e6 | 97 | |
yihui | 3:4189a10038e6 | 98 | string NfcTag::getTagType() |
yihui | 3:4189a10038e6 | 99 | { |
yihui | 3:4189a10038e6 | 100 | return _tagType; |
yihui | 3:4189a10038e6 | 101 | } |
yihui | 3:4189a10038e6 | 102 | |
yihui | 3:4189a10038e6 | 103 | bool NfcTag::hasNdefMessage() |
yihui | 3:4189a10038e6 | 104 | { |
yihui | 3:4189a10038e6 | 105 | return (_ndefMessage != NULL); |
yihui | 3:4189a10038e6 | 106 | } |
yihui | 3:4189a10038e6 | 107 | |
yihui | 3:4189a10038e6 | 108 | NdefMessage NfcTag::getNdefMessage() |
yihui | 3:4189a10038e6 | 109 | { |
yihui | 3:4189a10038e6 | 110 | return *_ndefMessage; |
yihui | 3:4189a10038e6 | 111 | } |
yihui | 3:4189a10038e6 | 112 | |
yihui | 3:4189a10038e6 | 113 | void NfcTag::print() |
yihui | 3:4189a10038e6 | 114 | { |
yihui | 3:4189a10038e6 | 115 | DMSG("NFC Tag - "); |
yihui | 3:4189a10038e6 | 116 | DMSG_INT(_tagType); |
yihui | 3:4189a10038e6 | 117 | DMSG("UID - "); |
yihui | 3:4189a10038e6 | 118 | DMSG(getUidString().c_str()); |
yihui | 3:4189a10038e6 | 119 | if (_ndefMessage == NULL) |
yihui | 3:4189a10038e6 | 120 | { |
yihui | 3:4189a10038e6 | 121 | DMSG("\nNo NDEF Message"); |
yihui | 3:4189a10038e6 | 122 | } |
yihui | 3:4189a10038e6 | 123 | else |
yihui | 3:4189a10038e6 | 124 | { |
yihui | 3:4189a10038e6 | 125 | _ndefMessage->print(); |
yihui | 3:4189a10038e6 | 126 | } |
yihui | 3:4189a10038e6 | 127 | } |