AppNearMe µNFC stack for the NXP PN532 chip License: You can use the stack free of charge to prototype with mbed; if you want to use the stack with your commercial product, get in touch!
Dependents: IOT_sensor_nfc AppNearMe_MuNFC_PN532_Test p2p_nfc_test NFCMoodLamp ... more
License
You can use the stack free of charge to prototype with mbed; if you want to use the stack with your commercial product, get in touch!
PN532/TLVList.cpp@0:480387549d89, 2012-07-26 (annotated)
- Committer:
- AppNearMe
- Date:
- Thu Jul 26 09:12:27 2012 +0000
- Revision:
- 0:480387549d89
- Child:
- 1:1074716d0111
Initial commit
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
AppNearMe | 0:480387549d89 | 1 | /* |
AppNearMe | 0:480387549d89 | 2 | TLVList.cpp |
AppNearMe | 0:480387549d89 | 3 | Copyright (c) Donatien Garnier 2012 |
AppNearMe | 0:480387549d89 | 4 | donatien.garnier@appnearme.com |
AppNearMe | 0:480387549d89 | 5 | http://www.appnearme.com/ |
AppNearMe | 0:480387549d89 | 6 | */ |
AppNearMe | 0:480387549d89 | 7 | |
AppNearMe | 0:480387549d89 | 8 | #include "TLVList.h" |
AppNearMe | 0:480387549d89 | 9 | |
AppNearMe | 0:480387549d89 | 10 | #include "munfc/core/fwk.h" |
AppNearMe | 0:480387549d89 | 11 | #include "munfc/ndef/appnearme_ndef_tlv.h" |
AppNearMe | 0:480387549d89 | 12 | |
AppNearMe | 0:480387549d89 | 13 | #include <cstring> //For memcpy, strlen |
AppNearMe | 0:480387549d89 | 14 | using std::memcpy; |
AppNearMe | 0:480387549d89 | 15 | using std::strlen; |
AppNearMe | 0:480387549d89 | 16 | |
AppNearMe | 0:480387549d89 | 17 | TLVList::TLVList() : m_tlvList(NULL) |
AppNearMe | 0:480387549d89 | 18 | { |
AppNearMe | 0:480387549d89 | 19 | |
AppNearMe | 0:480387549d89 | 20 | } |
AppNearMe | 0:480387549d89 | 21 | |
AppNearMe | 0:480387549d89 | 22 | void TLVList::wrap(tlv_list* payload) |
AppNearMe | 0:480387549d89 | 23 | { |
AppNearMe | 0:480387549d89 | 24 | m_tlvList = payload; |
AppNearMe | 0:480387549d89 | 25 | m_space = true; |
AppNearMe | 0:480387549d89 | 26 | m_type = NONE; |
AppNearMe | 0:480387549d89 | 27 | } |
AppNearMe | 0:480387549d89 | 28 | |
AppNearMe | 0:480387549d89 | 29 | |
AppNearMe | 0:480387549d89 | 30 | |
AppNearMe | 0:480387549d89 | 31 | /* Getters */ |
AppNearMe | 0:480387549d89 | 32 | |
AppNearMe | 0:480387549d89 | 33 | /** Iterate to next item |
AppNearMe | 0:480387549d89 | 34 | * @return type if next item exists, NONE otherwise |
AppNearMe | 0:480387549d89 | 35 | */ |
AppNearMe | 0:480387549d89 | 36 | TLVList::TLVType TLVList::getNext() |
AppNearMe | 0:480387549d89 | 37 | { |
AppNearMe | 0:480387549d89 | 38 | if(!m_tlvList) |
AppNearMe | 0:480387549d89 | 39 | { |
AppNearMe | 0:480387549d89 | 40 | return NONE; |
AppNearMe | 0:480387549d89 | 41 | } |
AppNearMe | 0:480387549d89 | 42 | |
AppNearMe | 0:480387549d89 | 43 | m_type = (TLVList::TLVType) appnearme_ndef_tlv_next_type(m_tlvList); //Explicit cast, this is the same enum |
AppNearMe | 0:480387549d89 | 44 | switch(m_type) |
AppNearMe | 0:480387549d89 | 45 | { |
AppNearMe | 0:480387549d89 | 46 | case UINT8: |
AppNearMe | 0:480387549d89 | 47 | m_arrayLen = 0; |
AppNearMe | 0:480387549d89 | 48 | m_uint8 = appnearme_ndef_tlv_get_uint8(m_tlvList); |
AppNearMe | 0:480387549d89 | 49 | break; |
AppNearMe | 0:480387549d89 | 50 | case UINT32: |
AppNearMe | 0:480387549d89 | 51 | m_arrayLen = 0; |
AppNearMe | 0:480387549d89 | 52 | m_uint32 = appnearme_ndef_tlv_get_uint32(m_tlvList); |
AppNearMe | 0:480387549d89 | 53 | break; |
AppNearMe | 0:480387549d89 | 54 | case UINT8_ARRAY: |
AppNearMe | 0:480387549d89 | 55 | //In this order, otherwise would break state-machine |
AppNearMe | 0:480387549d89 | 56 | m_arrayLen = appnearme_ndef_tlv_get_array_length(m_tlvList); |
AppNearMe | 0:480387549d89 | 57 | m_array = appnearme_ndef_tlv_get_array(m_tlvList); |
AppNearMe | 0:480387549d89 | 58 | break; |
AppNearMe | 0:480387549d89 | 59 | case STRING: |
AppNearMe | 0:480387549d89 | 60 | //In this order, otherwise would break state-machine |
AppNearMe | 0:480387549d89 | 61 | m_strLen = appnearme_ndef_tlv_get_string_length(m_tlvList); |
AppNearMe | 0:480387549d89 | 62 | m_str = appnearme_ndef_tlv_get_string(m_tlvList); |
AppNearMe | 0:480387549d89 | 63 | break; |
AppNearMe | 0:480387549d89 | 64 | } |
AppNearMe | 0:480387549d89 | 65 | return m_type; |
AppNearMe | 0:480387549d89 | 66 | } |
AppNearMe | 0:480387549d89 | 67 | |
AppNearMe | 0:480387549d89 | 68 | /** Get uint8_t value |
AppNearMe | 0:480387549d89 | 69 | * If the current item's type is uint32_t, the value will be masked with 0xFF |
AppNearMe | 0:480387549d89 | 70 | * @return uint8_t value OR 0 if the type is incompatible |
AppNearMe | 0:480387549d89 | 71 | */ |
AppNearMe | 0:480387549d89 | 72 | uint8_t TLVList::getUInt8() |
AppNearMe | 0:480387549d89 | 73 | { |
AppNearMe | 0:480387549d89 | 74 | switch(m_type) |
AppNearMe | 0:480387549d89 | 75 | { |
AppNearMe | 0:480387549d89 | 76 | case UINT8: |
AppNearMe | 0:480387549d89 | 77 | return m_uint8; |
AppNearMe | 0:480387549d89 | 78 | case UINT32: |
AppNearMe | 0:480387549d89 | 79 | return m_uint32 & 0xFF; |
AppNearMe | 0:480387549d89 | 80 | default: |
AppNearMe | 0:480387549d89 | 81 | return 0; |
AppNearMe | 0:480387549d89 | 82 | } |
AppNearMe | 0:480387549d89 | 83 | } |
AppNearMe | 0:480387549d89 | 84 | |
AppNearMe | 0:480387549d89 | 85 | /** Get uint32_t value |
AppNearMe | 0:480387549d89 | 86 | * If the current item's type is uint8_t, the value will be casted to uint32_t |
AppNearMe | 0:480387549d89 | 87 | * @return uint32_t value OR 0 if the type is incompatible |
AppNearMe | 0:480387549d89 | 88 | */ |
AppNearMe | 0:480387549d89 | 89 | uint32_t TLVList::getUInt32() |
AppNearMe | 0:480387549d89 | 90 | { |
AppNearMe | 0:480387549d89 | 91 | switch(m_type) |
AppNearMe | 0:480387549d89 | 92 | { |
AppNearMe | 0:480387549d89 | 93 | case UINT32: |
AppNearMe | 0:480387549d89 | 94 | return m_uint32; |
AppNearMe | 0:480387549d89 | 95 | case UINT8: |
AppNearMe | 0:480387549d89 | 96 | return m_uint8 & 0xFF; |
AppNearMe | 0:480387549d89 | 97 | default: |
AppNearMe | 0:480387549d89 | 98 | return 0; |
AppNearMe | 0:480387549d89 | 99 | } |
AppNearMe | 0:480387549d89 | 100 | } |
AppNearMe | 0:480387549d89 | 101 | |
AppNearMe | 0:480387549d89 | 102 | /** Get array length |
AppNearMe | 0:480387549d89 | 103 | * @return bytes array length |
AppNearMe | 0:480387549d89 | 104 | */ |
AppNearMe | 0:480387549d89 | 105 | size_t TLVList::getArrayLength() |
AppNearMe | 0:480387549d89 | 106 | { |
AppNearMe | 0:480387549d89 | 107 | switch(m_type) |
AppNearMe | 0:480387549d89 | 108 | { |
AppNearMe | 0:480387549d89 | 109 | case UINT8_ARRAY: |
AppNearMe | 0:480387549d89 | 110 | return m_arrayLen; |
AppNearMe | 0:480387549d89 | 111 | default: |
AppNearMe | 0:480387549d89 | 112 | return 0; |
AppNearMe | 0:480387549d89 | 113 | } |
AppNearMe | 0:480387549d89 | 114 | } |
AppNearMe | 0:480387549d89 | 115 | |
AppNearMe | 0:480387549d89 | 116 | /** Get array |
AppNearMe | 0:480387549d89 | 117 | * @param buf pointer to buffer's start |
AppNearMe | 0:480387549d89 | 118 | * @param maxLen maximum number of bytes to copy |
AppNearMe | 0:480387549d89 | 119 | * @return number of copied bytes |
AppNearMe | 0:480387549d89 | 120 | */ |
AppNearMe | 0:480387549d89 | 121 | size_t TLVList::getArray(uint8_t* buf, size_t maxLen) |
AppNearMe | 0:480387549d89 | 122 | { |
AppNearMe | 0:480387549d89 | 123 | if(m_type != UINT8_ARRAY) |
AppNearMe | 0:480387549d89 | 124 | { |
AppNearMe | 0:480387549d89 | 125 | return 0; |
AppNearMe | 0:480387549d89 | 126 | } |
AppNearMe | 0:480387549d89 | 127 | size_t len = MIN(maxLen, m_arrayLen); |
AppNearMe | 0:480387549d89 | 128 | memcpy(buf, m_array, len); |
AppNearMe | 0:480387549d89 | 129 | return len; |
AppNearMe | 0:480387549d89 | 130 | } |
AppNearMe | 0:480387549d89 | 131 | |
AppNearMe | 0:480387549d89 | 132 | /** Get string length |
AppNearMe | 0:480387549d89 | 133 | * @return string length |
AppNearMe | 0:480387549d89 | 134 | */ |
AppNearMe | 0:480387549d89 | 135 | size_t TLVList::getStringLength() |
AppNearMe | 0:480387549d89 | 136 | { |
AppNearMe | 0:480387549d89 | 137 | switch(m_type) |
AppNearMe | 0:480387549d89 | 138 | { |
AppNearMe | 0:480387549d89 | 139 | case STRING: |
AppNearMe | 0:480387549d89 | 140 | return m_strLen; |
AppNearMe | 0:480387549d89 | 141 | default: |
AppNearMe | 0:480387549d89 | 142 | return 0; |
AppNearMe | 0:480387549d89 | 143 | } |
AppNearMe | 0:480387549d89 | 144 | } |
AppNearMe | 0:480387549d89 | 145 | |
AppNearMe | 0:480387549d89 | 146 | |
AppNearMe | 0:480387549d89 | 147 | /** Get string |
AppNearMe | 0:480387549d89 | 148 | * Copy string to buffer (including null-terminating char) |
AppNearMe | 0:480387549d89 | 149 | * @param str pointer to string's start |
AppNearMe | 0:480387549d89 | 150 | * @param maxLen maximum number of chars to copy (not including null-terminating char) |
AppNearMe | 0:480387549d89 | 151 | * @return number of copied chars |
AppNearMe | 0:480387549d89 | 152 | */ |
AppNearMe | 0:480387549d89 | 153 | size_t TLVList::getString(char* str, size_t maxLen) |
AppNearMe | 0:480387549d89 | 154 | { |
AppNearMe | 0:480387549d89 | 155 | if(m_type != STRING) |
AppNearMe | 0:480387549d89 | 156 | { |
AppNearMe | 0:480387549d89 | 157 | return 0; |
AppNearMe | 0:480387549d89 | 158 | } |
AppNearMe | 0:480387549d89 | 159 | size_t len = MIN(maxLen, m_strLen); |
AppNearMe | 0:480387549d89 | 160 | memcpy(str, m_str, len); |
AppNearMe | 0:480387549d89 | 161 | return len; |
AppNearMe | 0:480387549d89 | 162 | } |
AppNearMe | 0:480387549d89 | 163 | |
AppNearMe | 0:480387549d89 | 164 | /* Setters */ |
AppNearMe | 0:480387549d89 | 165 | |
AppNearMe | 0:480387549d89 | 166 | /** Check whether there is space left in list |
AppNearMe | 0:480387549d89 | 167 | * @return true if there is space left, false otherwise |
AppNearMe | 0:480387549d89 | 168 | */ |
AppNearMe | 0:480387549d89 | 169 | bool TLVList::isSpace() |
AppNearMe | 0:480387549d89 | 170 | { |
AppNearMe | 0:480387549d89 | 171 | return m_space; |
AppNearMe | 0:480387549d89 | 172 | } |
AppNearMe | 0:480387549d89 | 173 | |
AppNearMe | 0:480387549d89 | 174 | /** Put uint8_t value |
AppNearMe | 0:480387549d89 | 175 | * @param value uint8_t value |
AppNearMe | 0:480387549d89 | 176 | * @return true on success, false if there is not enough space in buffer |
AppNearMe | 0:480387549d89 | 177 | */ |
AppNearMe | 0:480387549d89 | 178 | bool TLVList::putUInt8(uint8_t value) |
AppNearMe | 0:480387549d89 | 179 | { |
AppNearMe | 0:480387549d89 | 180 | int res = appnearme_ndef_tlv_put_uint8(m_tlvList, value); |
AppNearMe | 0:480387549d89 | 181 | if( !res ) |
AppNearMe | 0:480387549d89 | 182 | { |
AppNearMe | 0:480387549d89 | 183 | m_space = false; |
AppNearMe | 0:480387549d89 | 184 | return false; |
AppNearMe | 0:480387549d89 | 185 | } |
AppNearMe | 0:480387549d89 | 186 | return true; |
AppNearMe | 0:480387549d89 | 187 | } |
AppNearMe | 0:480387549d89 | 188 | |
AppNearMe | 0:480387549d89 | 189 | /** Put uint32_t value |
AppNearMe | 0:480387549d89 | 190 | * @param value uint32_t value |
AppNearMe | 0:480387549d89 | 191 | * @return true on success, false if there is not enough space in buffer |
AppNearMe | 0:480387549d89 | 192 | */ |
AppNearMe | 0:480387549d89 | 193 | bool TLVList::putUInt32(uint32_t value) |
AppNearMe | 0:480387549d89 | 194 | { |
AppNearMe | 0:480387549d89 | 195 | int res = appnearme_ndef_tlv_put_uint32(m_tlvList, value); |
AppNearMe | 0:480387549d89 | 196 | if( !res ) |
AppNearMe | 0:480387549d89 | 197 | { |
AppNearMe | 0:480387549d89 | 198 | m_space = false; |
AppNearMe | 0:480387549d89 | 199 | return false; |
AppNearMe | 0:480387549d89 | 200 | } |
AppNearMe | 0:480387549d89 | 201 | return true; |
AppNearMe | 0:480387549d89 | 202 | } |
AppNearMe | 0:480387549d89 | 203 | |
AppNearMe | 0:480387549d89 | 204 | /** Put array |
AppNearMe | 0:480387549d89 | 205 | * @param buf pointer to buffer's start |
AppNearMe | 0:480387549d89 | 206 | * @param len number of bytes to copy |
AppNearMe | 0:480387549d89 | 207 | * @return number of copied bytes |
AppNearMe | 0:480387549d89 | 208 | */ |
AppNearMe | 0:480387549d89 | 209 | size_t TLVList::putArray(uint8_t* buf, size_t len) |
AppNearMe | 0:480387549d89 | 210 | { |
AppNearMe | 0:480387549d89 | 211 | int res = appnearme_ndef_tlv_put_array(m_tlvList, buf, len); |
AppNearMe | 0:480387549d89 | 212 | if( !res ) |
AppNearMe | 0:480387549d89 | 213 | { |
AppNearMe | 0:480387549d89 | 214 | m_space = false; |
AppNearMe | 0:480387549d89 | 215 | return 0; |
AppNearMe | 0:480387549d89 | 216 | } |
AppNearMe | 0:480387549d89 | 217 | return len; |
AppNearMe | 0:480387549d89 | 218 | } |
AppNearMe | 0:480387549d89 | 219 | |
AppNearMe | 0:480387549d89 | 220 | /** Put string |
AppNearMe | 0:480387549d89 | 221 | * @param str pointer to null-terminated string's start |
AppNearMe | 0:480387549d89 | 222 | * @return number of copied bytes |
AppNearMe | 0:480387549d89 | 223 | */ |
AppNearMe | 0:480387549d89 | 224 | size_t TLVList::putString(char* str) |
AppNearMe | 0:480387549d89 | 225 | { |
AppNearMe | 0:480387549d89 | 226 | int res = appnearme_ndef_tlv_put_string(m_tlvList, str); |
AppNearMe | 0:480387549d89 | 227 | if( !res ) |
AppNearMe | 0:480387549d89 | 228 | { |
AppNearMe | 0:480387549d89 | 229 | m_space = false; |
AppNearMe | 0:480387549d89 | 230 | return 0; |
AppNearMe | 0:480387549d89 | 231 | } |
AppNearMe | 0:480387549d89 | 232 | return strlen(str); |
AppNearMe | 0:480387549d89 | 233 | } |
AppNearMe | 0:480387549d89 | 234 | |
AppNearMe | 0:480387549d89 | 235 | |
AppNearMe | 0:480387549d89 | 236 |