NFC API for mbed using the MicroNFCBoard as a peripheral
Dependents: MicroNFCBoardAPI_P2P_Client MicroNFCBoardAPI_Blink MicroNFCBoardAPI_Tag_Emulator MicroNFCBoardAPI_Tag_Reader ... more
micronfcboard.cpp@1:1d246e0872c6, 2015-04-24 (annotated)
- Committer:
- AppNearMe
- Date:
- Fri Apr 24 12:59:31 2015 +0000
- Revision:
- 1:1d246e0872c6
- Parent:
- 0:07fa9c0dd549
- Child:
- 2:9b0733b8fa95
Set license to Apache 2
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
AppNearMe | 1:1d246e0872c6 | 1 | /* |
AppNearMe | 1:1d246e0872c6 | 2 | MicroNFCBoard mbed API |
AppNearMe | 1:1d246e0872c6 | 3 | |
AppNearMe | 1:1d246e0872c6 | 4 | Copyright (c) 2014-2015 AppNearMe Ltd |
AppNearMe | 1:1d246e0872c6 | 5 | |
AppNearMe | 1:1d246e0872c6 | 6 | Licensed under the Apache License, Version 2.0 (the "License"); |
AppNearMe | 1:1d246e0872c6 | 7 | you may not use this file except in compliance with the License. |
AppNearMe | 1:1d246e0872c6 | 8 | You may obtain a copy of the License at |
AppNearMe | 1:1d246e0872c6 | 9 | |
AppNearMe | 1:1d246e0872c6 | 10 | http://www.apache.org/licenses/LICENSE-2.0 |
AppNearMe | 1:1d246e0872c6 | 11 | |
AppNearMe | 1:1d246e0872c6 | 12 | Unless required by applicable law or agreed to in writing, software |
AppNearMe | 1:1d246e0872c6 | 13 | distributed under the License is distributed on an "AS IS" BASIS, |
AppNearMe | 1:1d246e0872c6 | 14 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
AppNearMe | 1:1d246e0872c6 | 15 | See the License for the specific language governing permissions and |
AppNearMe | 1:1d246e0872c6 | 16 | limitations under the License. |
AppNearMe | 0:07fa9c0dd549 | 17 | */ |
AppNearMe | 0:07fa9c0dd549 | 18 | |
AppNearMe | 0:07fa9c0dd549 | 19 | #include "micronfcboard.h" |
AppNearMe | 0:07fa9c0dd549 | 20 | |
AppNearMe | 0:07fa9c0dd549 | 21 | #define STATUS_POLLING (1 << 0) |
AppNearMe | 0:07fa9c0dd549 | 22 | #define STATUS_CONNECTED (1 << 1) |
AppNearMe | 0:07fa9c0dd549 | 23 | #define STATUS_NDEF_PRESENT (1 << 2) |
AppNearMe | 0:07fa9c0dd549 | 24 | #define STATUS_NDEF_READABLE (1 << 3) |
AppNearMe | 0:07fa9c0dd549 | 25 | #define STATUS_NDEF_WRITEABLE (1 << 4) |
AppNearMe | 0:07fa9c0dd549 | 26 | #define STATUS_NDEF_BUSY (1 << 5) |
AppNearMe | 0:07fa9c0dd549 | 27 | #define STATUS_NDEF_SUCCESS (1 << 6) |
AppNearMe | 0:07fa9c0dd549 | 28 | |
AppNearMe | 0:07fa9c0dd549 | 29 | #define STATUS_TYPE_MASK (0xFF << 8) |
AppNearMe | 0:07fa9c0dd549 | 30 | #define STATUS_TYPE2 (2 << 8) |
AppNearMe | 0:07fa9c0dd549 | 31 | #define STATUS_P2P (8 << 8) |
AppNearMe | 0:07fa9c0dd549 | 32 | |
AppNearMe | 0:07fa9c0dd549 | 33 | #define RECORD_URI 1 |
AppNearMe | 0:07fa9c0dd549 | 34 | #define RECORD_TEXT 2 |
AppNearMe | 0:07fa9c0dd549 | 35 | #define RECORD_SP 3 |
AppNearMe | 0:07fa9c0dd549 | 36 | |
AppNearMe | 0:07fa9c0dd549 | 37 | MicroNFCBoard::MicroNFCBoard(PinName mosi, PinName miso, PinName sck, PinName cs, PinName irq) : _transport(mosi, miso, sck, cs, irq) |
AppNearMe | 0:07fa9c0dd549 | 38 | { |
AppNearMe | 0:07fa9c0dd549 | 39 | |
AppNearMe | 0:07fa9c0dd549 | 40 | } |
AppNearMe | 0:07fa9c0dd549 | 41 | |
AppNearMe | 0:07fa9c0dd549 | 42 | void MicroNFCBoard::init() |
AppNearMe | 0:07fa9c0dd549 | 43 | { |
AppNearMe | 0:07fa9c0dd549 | 44 | _transport.init(); |
AppNearMe | 0:07fa9c0dd549 | 45 | _status = _transport.status(); |
AppNearMe | 0:07fa9c0dd549 | 46 | } |
AppNearMe | 0:07fa9c0dd549 | 47 | |
AppNearMe | 0:07fa9c0dd549 | 48 | void MicroNFCBoard::setLeds(bool led1, bool led2) |
AppNearMe | 0:07fa9c0dd549 | 49 | { |
AppNearMe | 0:07fa9c0dd549 | 50 | _transport.leds(led1, led2); |
AppNearMe | 0:07fa9c0dd549 | 51 | } |
AppNearMe | 0:07fa9c0dd549 | 52 | |
AppNearMe | 0:07fa9c0dd549 | 53 | void MicroNFCBoard::updateStatus() |
AppNearMe | 0:07fa9c0dd549 | 54 | { |
AppNearMe | 0:07fa9c0dd549 | 55 | if(_transport.statusChanged()) |
AppNearMe | 0:07fa9c0dd549 | 56 | { |
AppNearMe | 0:07fa9c0dd549 | 57 | _status = _transport.status(); |
AppNearMe | 0:07fa9c0dd549 | 58 | } |
AppNearMe | 0:07fa9c0dd549 | 59 | } |
AppNearMe | 0:07fa9c0dd549 | 60 | |
AppNearMe | 0:07fa9c0dd549 | 61 | bool MicroNFCBoard::connected() |
AppNearMe | 0:07fa9c0dd549 | 62 | { |
AppNearMe | 0:07fa9c0dd549 | 63 | updateStatus(); |
AppNearMe | 0:07fa9c0dd549 | 64 | return _status & STATUS_CONNECTED; |
AppNearMe | 0:07fa9c0dd549 | 65 | } |
AppNearMe | 0:07fa9c0dd549 | 66 | |
AppNearMe | 0:07fa9c0dd549 | 67 | bool MicroNFCBoard::type2() |
AppNearMe | 0:07fa9c0dd549 | 68 | { |
AppNearMe | 0:07fa9c0dd549 | 69 | updateStatus(); |
AppNearMe | 0:07fa9c0dd549 | 70 | return (_status & STATUS_TYPE_MASK) == STATUS_TYPE2; |
AppNearMe | 0:07fa9c0dd549 | 71 | } |
AppNearMe | 0:07fa9c0dd549 | 72 | |
AppNearMe | 0:07fa9c0dd549 | 73 | bool MicroNFCBoard::p2p() |
AppNearMe | 0:07fa9c0dd549 | 74 | { |
AppNearMe | 0:07fa9c0dd549 | 75 | updateStatus(); |
AppNearMe | 0:07fa9c0dd549 | 76 | return (_status & STATUS_TYPE_MASK) == STATUS_P2P; |
AppNearMe | 0:07fa9c0dd549 | 77 | } |
AppNearMe | 0:07fa9c0dd549 | 78 | |
AppNearMe | 0:07fa9c0dd549 | 79 | bool MicroNFCBoard::polling() |
AppNearMe | 0:07fa9c0dd549 | 80 | { |
AppNearMe | 0:07fa9c0dd549 | 81 | updateStatus(); |
AppNearMe | 0:07fa9c0dd549 | 82 | return _status & STATUS_POLLING; |
AppNearMe | 0:07fa9c0dd549 | 83 | } |
AppNearMe | 0:07fa9c0dd549 | 84 | |
AppNearMe | 0:07fa9c0dd549 | 85 | bool MicroNFCBoard::ndefReadable() |
AppNearMe | 0:07fa9c0dd549 | 86 | { |
AppNearMe | 0:07fa9c0dd549 | 87 | updateStatus(); |
AppNearMe | 0:07fa9c0dd549 | 88 | return _status & STATUS_NDEF_READABLE; |
AppNearMe | 0:07fa9c0dd549 | 89 | } |
AppNearMe | 0:07fa9c0dd549 | 90 | |
AppNearMe | 0:07fa9c0dd549 | 91 | bool MicroNFCBoard::ndefWriteable() |
AppNearMe | 0:07fa9c0dd549 | 92 | { |
AppNearMe | 0:07fa9c0dd549 | 93 | updateStatus(); |
AppNearMe | 0:07fa9c0dd549 | 94 | return _status & STATUS_NDEF_WRITEABLE; |
AppNearMe | 0:07fa9c0dd549 | 95 | } |
AppNearMe | 0:07fa9c0dd549 | 96 | |
AppNearMe | 0:07fa9c0dd549 | 97 | bool MicroNFCBoard::ndefPresent() |
AppNearMe | 0:07fa9c0dd549 | 98 | { |
AppNearMe | 0:07fa9c0dd549 | 99 | updateStatus(); |
AppNearMe | 0:07fa9c0dd549 | 100 | return _status & STATUS_NDEF_PRESENT; |
AppNearMe | 0:07fa9c0dd549 | 101 | } |
AppNearMe | 0:07fa9c0dd549 | 102 | |
AppNearMe | 0:07fa9c0dd549 | 103 | bool MicroNFCBoard::ndefBusy() |
AppNearMe | 0:07fa9c0dd549 | 104 | { |
AppNearMe | 0:07fa9c0dd549 | 105 | updateStatus(); |
AppNearMe | 0:07fa9c0dd549 | 106 | return _status & STATUS_NDEF_BUSY; |
AppNearMe | 0:07fa9c0dd549 | 107 | } |
AppNearMe | 0:07fa9c0dd549 | 108 | |
AppNearMe | 0:07fa9c0dd549 | 109 | bool MicroNFCBoard::ndefSuccess() |
AppNearMe | 0:07fa9c0dd549 | 110 | { |
AppNearMe | 0:07fa9c0dd549 | 111 | updateStatus(); |
AppNearMe | 0:07fa9c0dd549 | 112 | return _status & STATUS_NDEF_SUCCESS; |
AppNearMe | 0:07fa9c0dd549 | 113 | } |
AppNearMe | 0:07fa9c0dd549 | 114 | |
AppNearMe | 0:07fa9c0dd549 | 115 | void MicroNFCBoard::startPolling() |
AppNearMe | 0:07fa9c0dd549 | 116 | { |
AppNearMe | 0:07fa9c0dd549 | 117 | _transport.nfcPoll(true); |
AppNearMe | 0:07fa9c0dd549 | 118 | } |
AppNearMe | 0:07fa9c0dd549 | 119 | |
AppNearMe | 0:07fa9c0dd549 | 120 | void MicroNFCBoard::stopPolling() |
AppNearMe | 0:07fa9c0dd549 | 121 | { |
AppNearMe | 0:07fa9c0dd549 | 122 | _transport.nfcPoll(false); |
AppNearMe | 0:07fa9c0dd549 | 123 | } |
AppNearMe | 0:07fa9c0dd549 | 124 | |
AppNearMe | 0:07fa9c0dd549 | 125 | void MicroNFCBoard::ndefRead() |
AppNearMe | 0:07fa9c0dd549 | 126 | { |
AppNearMe | 0:07fa9c0dd549 | 127 | _transport.nfcOperation(true, false); |
AppNearMe | 0:07fa9c0dd549 | 128 | } |
AppNearMe | 0:07fa9c0dd549 | 129 | |
AppNearMe | 0:07fa9c0dd549 | 130 | void MicroNFCBoard::ndefWrite() |
AppNearMe | 0:07fa9c0dd549 | 131 | { |
AppNearMe | 0:07fa9c0dd549 | 132 | _transport.nfcOperation(false, true); |
AppNearMe | 0:07fa9c0dd549 | 133 | } |
AppNearMe | 0:07fa9c0dd549 | 134 | |
AppNearMe | 0:07fa9c0dd549 | 135 | bool MicroNFCBoard::readNdefUri(char* uri, size_t maxUriLength) |
AppNearMe | 0:07fa9c0dd549 | 136 | { |
AppNearMe | 0:07fa9c0dd549 | 137 | if(!ndefPresent()) |
AppNearMe | 0:07fa9c0dd549 | 138 | { |
AppNearMe | 0:07fa9c0dd549 | 139 | return false; |
AppNearMe | 0:07fa9c0dd549 | 140 | } |
AppNearMe | 0:07fa9c0dd549 | 141 | |
AppNearMe | 0:07fa9c0dd549 | 142 | size_t recordCount = 0; |
AppNearMe | 0:07fa9c0dd549 | 143 | _transport.nfcGetMessageInfo(&recordCount); |
AppNearMe | 0:07fa9c0dd549 | 144 | |
AppNearMe | 0:07fa9c0dd549 | 145 | |
AppNearMe | 0:07fa9c0dd549 | 146 | size_t recordNumber = 0; |
AppNearMe | 0:07fa9c0dd549 | 147 | uint16_t info[4]; |
AppNearMe | 0:07fa9c0dd549 | 148 | uint16_t type; |
AppNearMe | 0:07fa9c0dd549 | 149 | size_t infoCount = 4; |
AppNearMe | 0:07fa9c0dd549 | 150 | |
AppNearMe | 0:07fa9c0dd549 | 151 | for(recordNumber = 0; recordNumber < recordCount; recordNumber++) |
AppNearMe | 0:07fa9c0dd549 | 152 | { |
AppNearMe | 0:07fa9c0dd549 | 153 | _transport.nfcGetRecordInfo(recordNumber, &type, info, infoCount); |
AppNearMe | 0:07fa9c0dd549 | 154 | if(type == RECORD_URI) |
AppNearMe | 0:07fa9c0dd549 | 155 | { |
AppNearMe | 0:07fa9c0dd549 | 156 | break; |
AppNearMe | 0:07fa9c0dd549 | 157 | } |
AppNearMe | 0:07fa9c0dd549 | 158 | if(type == RECORD_SP) |
AppNearMe | 0:07fa9c0dd549 | 159 | { |
AppNearMe | 0:07fa9c0dd549 | 160 | recordCount += info[1]; |
AppNearMe | 0:07fa9c0dd549 | 161 | } |
AppNearMe | 0:07fa9c0dd549 | 162 | } |
AppNearMe | 0:07fa9c0dd549 | 163 | if(recordNumber == recordCount) |
AppNearMe | 0:07fa9c0dd549 | 164 | { |
AppNearMe | 0:07fa9c0dd549 | 165 | return false; |
AppNearMe | 0:07fa9c0dd549 | 166 | } |
AppNearMe | 0:07fa9c0dd549 | 167 | |
AppNearMe | 0:07fa9c0dd549 | 168 | //Recover prefix |
AppNearMe | 0:07fa9c0dd549 | 169 | size_t length = maxUriLength - 1; |
AppNearMe | 0:07fa9c0dd549 | 170 | _transport.nfcDecodePrefix(info[0], uri, &length); |
AppNearMe | 0:07fa9c0dd549 | 171 | |
AppNearMe | 0:07fa9c0dd549 | 172 | maxUriLength -= length; |
AppNearMe | 0:07fa9c0dd549 | 173 | uri += length; |
AppNearMe | 0:07fa9c0dd549 | 174 | |
AppNearMe | 0:07fa9c0dd549 | 175 | if(maxUriLength <= 1) |
AppNearMe | 0:07fa9c0dd549 | 176 | { |
AppNearMe | 0:07fa9c0dd549 | 177 | return false; |
AppNearMe | 0:07fa9c0dd549 | 178 | } |
AppNearMe | 0:07fa9c0dd549 | 179 | |
AppNearMe | 0:07fa9c0dd549 | 180 | length = info[1]; |
AppNearMe | 0:07fa9c0dd549 | 181 | if(length > maxUriLength - 1) |
AppNearMe | 0:07fa9c0dd549 | 182 | { |
AppNearMe | 0:07fa9c0dd549 | 183 | return false; |
AppNearMe | 0:07fa9c0dd549 | 184 | } |
AppNearMe | 0:07fa9c0dd549 | 185 | |
AppNearMe | 0:07fa9c0dd549 | 186 | size_t off = 0; |
AppNearMe | 0:07fa9c0dd549 | 187 | while(length > 0) |
AppNearMe | 0:07fa9c0dd549 | 188 | { |
AppNearMe | 0:07fa9c0dd549 | 189 | size_t cpyLength = length; |
AppNearMe | 0:07fa9c0dd549 | 190 | if(cpyLength > 32) |
AppNearMe | 0:07fa9c0dd549 | 191 | { |
AppNearMe | 0:07fa9c0dd549 | 192 | cpyLength = 32; |
AppNearMe | 0:07fa9c0dd549 | 193 | } |
AppNearMe | 0:07fa9c0dd549 | 194 | _transport.nfcGetRecordData(recordNumber, 0, off, (uint8_t*)uri, cpyLength); |
AppNearMe | 0:07fa9c0dd549 | 195 | length -= cpyLength; |
AppNearMe | 0:07fa9c0dd549 | 196 | off += cpyLength; |
AppNearMe | 0:07fa9c0dd549 | 197 | uri += cpyLength; |
AppNearMe | 0:07fa9c0dd549 | 198 | } |
AppNearMe | 0:07fa9c0dd549 | 199 | |
AppNearMe | 0:07fa9c0dd549 | 200 | uri[0] = '\0'; |
AppNearMe | 0:07fa9c0dd549 | 201 | |
AppNearMe | 0:07fa9c0dd549 | 202 | return true; |
AppNearMe | 0:07fa9c0dd549 | 203 | } |
AppNearMe | 0:07fa9c0dd549 | 204 | |
AppNearMe | 0:07fa9c0dd549 | 205 | bool MicroNFCBoard::readNdefText(char* text, size_t maxTextLength) |
AppNearMe | 0:07fa9c0dd549 | 206 | { |
AppNearMe | 0:07fa9c0dd549 | 207 | if(!ndefPresent()) |
AppNearMe | 0:07fa9c0dd549 | 208 | { |
AppNearMe | 0:07fa9c0dd549 | 209 | return false; |
AppNearMe | 0:07fa9c0dd549 | 210 | } |
AppNearMe | 0:07fa9c0dd549 | 211 | |
AppNearMe | 0:07fa9c0dd549 | 212 | size_t recordCount = 0; |
AppNearMe | 0:07fa9c0dd549 | 213 | _transport.nfcGetMessageInfo(&recordCount); |
AppNearMe | 0:07fa9c0dd549 | 214 | |
AppNearMe | 0:07fa9c0dd549 | 215 | |
AppNearMe | 0:07fa9c0dd549 | 216 | size_t recordNumber = 0; |
AppNearMe | 0:07fa9c0dd549 | 217 | uint16_t info[4]; |
AppNearMe | 0:07fa9c0dd549 | 218 | uint16_t type; |
AppNearMe | 0:07fa9c0dd549 | 219 | size_t infoCount = 4; |
AppNearMe | 0:07fa9c0dd549 | 220 | |
AppNearMe | 0:07fa9c0dd549 | 221 | for(recordNumber = 0; recordNumber < recordCount; recordNumber++) |
AppNearMe | 0:07fa9c0dd549 | 222 | { |
AppNearMe | 0:07fa9c0dd549 | 223 | _transport.nfcGetRecordInfo(recordNumber, &type, info, infoCount); |
AppNearMe | 0:07fa9c0dd549 | 224 | if(type == RECORD_TEXT) |
AppNearMe | 0:07fa9c0dd549 | 225 | { |
AppNearMe | 0:07fa9c0dd549 | 226 | break; |
AppNearMe | 0:07fa9c0dd549 | 227 | } |
AppNearMe | 0:07fa9c0dd549 | 228 | if(type == RECORD_SP) |
AppNearMe | 0:07fa9c0dd549 | 229 | { |
AppNearMe | 0:07fa9c0dd549 | 230 | recordCount += info[1]; |
AppNearMe | 0:07fa9c0dd549 | 231 | } |
AppNearMe | 0:07fa9c0dd549 | 232 | } |
AppNearMe | 0:07fa9c0dd549 | 233 | if(recordNumber == recordCount) |
AppNearMe | 0:07fa9c0dd549 | 234 | { |
AppNearMe | 0:07fa9c0dd549 | 235 | return false; |
AppNearMe | 0:07fa9c0dd549 | 236 | } |
AppNearMe | 0:07fa9c0dd549 | 237 | |
AppNearMe | 0:07fa9c0dd549 | 238 | size_t length = info[2]; |
AppNearMe | 0:07fa9c0dd549 | 239 | if(length > maxTextLength - 1) |
AppNearMe | 0:07fa9c0dd549 | 240 | { |
AppNearMe | 0:07fa9c0dd549 | 241 | return false; |
AppNearMe | 0:07fa9c0dd549 | 242 | } |
AppNearMe | 0:07fa9c0dd549 | 243 | |
AppNearMe | 0:07fa9c0dd549 | 244 | size_t off = 0; |
AppNearMe | 0:07fa9c0dd549 | 245 | while(length > 0) |
AppNearMe | 0:07fa9c0dd549 | 246 | { |
AppNearMe | 0:07fa9c0dd549 | 247 | size_t cpyLength = length; |
AppNearMe | 0:07fa9c0dd549 | 248 | if(cpyLength > 32) |
AppNearMe | 0:07fa9c0dd549 | 249 | { |
AppNearMe | 0:07fa9c0dd549 | 250 | cpyLength = 32; |
AppNearMe | 0:07fa9c0dd549 | 251 | } |
AppNearMe | 0:07fa9c0dd549 | 252 | _transport.nfcGetRecordData(recordNumber, 1, off, (uint8_t*)text, cpyLength); |
AppNearMe | 0:07fa9c0dd549 | 253 | length -= cpyLength; |
AppNearMe | 0:07fa9c0dd549 | 254 | off += cpyLength; |
AppNearMe | 0:07fa9c0dd549 | 255 | text += cpyLength; |
AppNearMe | 0:07fa9c0dd549 | 256 | } |
AppNearMe | 0:07fa9c0dd549 | 257 | |
AppNearMe | 0:07fa9c0dd549 | 258 | text[0] = '\0'; |
AppNearMe | 0:07fa9c0dd549 | 259 | |
AppNearMe | 0:07fa9c0dd549 | 260 | return true; |
AppNearMe | 0:07fa9c0dd549 | 261 | } |
AppNearMe | 0:07fa9c0dd549 | 262 | |
AppNearMe | 0:07fa9c0dd549 | 263 | |
AppNearMe | 0:07fa9c0dd549 | 264 |