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
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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.
RecordHeader.h@20:31f727872290, 2017-07-12 (annotated)
- Committer:
- Davidroid
- Date:
- Wed Jul 12 12:33:42 2017 +0000
- Revision:
- 20:31f727872290
- Parent:
- 19:13d84b136a62
Updated to fit ARM mbed coding style.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
giovannivisentini | 6:739e3211749d | 1 | /** |
giovannivisentini | 6:739e3211749d | 2 | ****************************************************************************** |
giovannivisentini | 6:739e3211749d | 3 | * @file RecordHeader.h |
giovannivisentini | 8:473f6e0b03df | 4 | * @author ST / Central Labs |
giovannivisentini | 19:13d84b136a62 | 5 | * @version V2.0.0 |
giovannivisentini | 19:13d84b136a62 | 6 | * @date 28 Apr 2017 |
giovannivisentini | 6:739e3211749d | 7 | * @brief Record header class |
giovannivisentini | 6:739e3211749d | 8 | ****************************************************************************** |
giovannivisentini | 6:739e3211749d | 9 | * @attention |
giovannivisentini | 6:739e3211749d | 10 | * |
giovannivisentini | 6:739e3211749d | 11 | * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2> |
giovannivisentini | 4:eaf6c49a86e4 | 12 | * |
giovannivisentini | 6:739e3211749d | 13 | * Redistribution and use in source and binary forms, with or without modification, |
giovannivisentini | 6:739e3211749d | 14 | * are permitted provided that the following conditions are met: |
giovannivisentini | 6:739e3211749d | 15 | * 1. Redistributions of source code must retain the above copyright notice, |
giovannivisentini | 6:739e3211749d | 16 | * this list of conditions and the following disclaimer. |
giovannivisentini | 6:739e3211749d | 17 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
giovannivisentini | 6:739e3211749d | 18 | * this list of conditions and the following disclaimer in the documentation |
giovannivisentini | 6:739e3211749d | 19 | * and/or other materials provided with the distribution. |
giovannivisentini | 6:739e3211749d | 20 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
giovannivisentini | 6:739e3211749d | 21 | * may be used to endorse or promote products derived from this software |
giovannivisentini | 6:739e3211749d | 22 | * without specific prior written permission. |
giovannivisentini | 6:739e3211749d | 23 | * |
giovannivisentini | 6:739e3211749d | 24 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
giovannivisentini | 6:739e3211749d | 25 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
giovannivisentini | 6:739e3211749d | 26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
giovannivisentini | 6:739e3211749d | 27 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
giovannivisentini | 6:739e3211749d | 28 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
giovannivisentini | 6:739e3211749d | 29 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
giovannivisentini | 6:739e3211749d | 30 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
giovannivisentini | 6:739e3211749d | 31 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
giovannivisentini | 6:739e3211749d | 32 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
giovannivisentini | 6:739e3211749d | 33 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
giovannivisentini | 6:739e3211749d | 34 | * |
giovannivisentini | 6:739e3211749d | 35 | ****************************************************************************** |
giovannivisentini | 4:eaf6c49a86e4 | 36 | */ |
giovannivisentini | 4:eaf6c49a86e4 | 37 | |
giovannivisentini | 4:eaf6c49a86e4 | 38 | #ifndef NDEFLIB_RECORDHEADER_H_ |
giovannivisentini | 4:eaf6c49a86e4 | 39 | #define NDEFLIB_RECORDHEADER_H_ |
giovannivisentini | 4:eaf6c49a86e4 | 40 | |
giovannivisentini | 4:eaf6c49a86e4 | 41 | #include <stdint.h> |
giovannivisentini | 4:eaf6c49a86e4 | 42 | |
giovannivisentini | 4:eaf6c49a86e4 | 43 | namespace NDefLib { |
giovannivisentini | 4:eaf6c49a86e4 | 44 | |
giovannivisentini | 4:eaf6c49a86e4 | 45 | /** |
giovannivisentini | 12:ed4d9b8d1410 | 46 | * Record header class. |
giovannivisentini | 4:eaf6c49a86e4 | 47 | * @see NFC Data Exchange Format (NDEF) Technical Specification NDEF 1.0 |
giovannivisentini | 4:eaf6c49a86e4 | 48 | */ |
giovannivisentini | 4:eaf6c49a86e4 | 49 | class RecordHeader { |
giovannivisentini | 4:eaf6c49a86e4 | 50 | |
giovannivisentini | 4:eaf6c49a86e4 | 51 | public: |
giovannivisentini | 4:eaf6c49a86e4 | 52 | |
giovannivisentini | 4:eaf6c49a86e4 | 53 | /** |
giovannivisentini | 12:ed4d9b8d1410 | 54 | * Record type format |
giovannivisentini | 4:eaf6c49a86e4 | 55 | */ |
giovannivisentini | 4:eaf6c49a86e4 | 56 | typedef enum TypeNameFormat { |
giovannivisentini | 4:eaf6c49a86e4 | 57 | Empty = 0x00, //!< Empty |
giovannivisentini | 4:eaf6c49a86e4 | 58 | NFC_well_known = 0x01, //!< NFC_well_known |
giovannivisentini | 4:eaf6c49a86e4 | 59 | Mime_media_type = 0x02,//!< Mime_media_type |
giovannivisentini | 4:eaf6c49a86e4 | 60 | Absolute_URI = 0x03, //!< Absolute_URI |
giovannivisentini | 4:eaf6c49a86e4 | 61 | NFC_external = 0x04, //!< NFC_external |
giovannivisentini | 4:eaf6c49a86e4 | 62 | Unknown = 0x05, //!< Unknown |
giovannivisentini | 4:eaf6c49a86e4 | 63 | Unchanged = 0x06, //!< Unchanged |
giovannivisentini | 4:eaf6c49a86e4 | 64 | Reserved = 0x07 //!< Reserved |
giovannivisentini | 4:eaf6c49a86e4 | 65 | } TypeNameFormat_t; |
giovannivisentini | 4:eaf6c49a86e4 | 66 | |
giovannivisentini | 4:eaf6c49a86e4 | 67 | |
giovannivisentini | 4:eaf6c49a86e4 | 68 | RecordHeader() : |
giovannivisentini | 7:1ebd6049fa57 | 69 | headerFlags(0), typeLength(0), payloadLength(0) { |
giovannivisentini | 19:13d84b136a62 | 70 | set_SR(true); |
giovannivisentini | 4:eaf6c49a86e4 | 71 | } |
giovannivisentini | 4:eaf6c49a86e4 | 72 | |
giovannivisentini | 4:eaf6c49a86e4 | 73 | /** |
giovannivisentini | 12:ed4d9b8d1410 | 74 | * Set the 'message begin' flag. |
giovannivisentini | 12:ed4d9b8d1410 | 75 | * @param value True if the record is the first within the message. |
giovannivisentini | 4:eaf6c49a86e4 | 76 | */ |
giovannivisentini | 19:13d84b136a62 | 77 | void set_MB(bool value) { |
Davidroid | 20:31f727872290 | 78 | if (value) { |
giovannivisentini | 4:eaf6c49a86e4 | 79 | headerFlags |= 0x80; |
Davidroid | 20:31f727872290 | 80 | } else { |
giovannivisentini | 7:1ebd6049fa57 | 81 | headerFlags &= ~0x80; |
Davidroid | 20:31f727872290 | 82 | } |
giovannivisentini | 19:13d84b136a62 | 83 | }//set_MB |
giovannivisentini | 4:eaf6c49a86e4 | 84 | |
giovannivisentini | 4:eaf6c49a86e4 | 85 | /** |
giovannivisentini | 12:ed4d9b8d1410 | 86 | * Check the 'message begin' flag. |
giovannivisentini | 4:eaf6c49a86e4 | 87 | * @return true if it is the first record in the message |
giovannivisentini | 4:eaf6c49a86e4 | 88 | */ |
giovannivisentini | 19:13d84b136a62 | 89 | bool get_MB() const { |
giovannivisentini | 4:eaf6c49a86e4 | 90 | return (headerFlags & 0x80) != 0; |
giovannivisentini | 19:13d84b136a62 | 91 | }//get_MB |
giovannivisentini | 4:eaf6c49a86e4 | 92 | |
giovannivisentini | 4:eaf6c49a86e4 | 93 | /** |
giovannivisentini | 12:ed4d9b8d1410 | 94 | * Set the 'message end' flag. |
giovannivisentini | 12:ed4d9b8d1410 | 95 | * @param value True if it is the last record in the message. |
giovannivisentini | 4:eaf6c49a86e4 | 96 | */ |
giovannivisentini | 19:13d84b136a62 | 97 | void set_ME(bool value) { |
Davidroid | 20:31f727872290 | 98 | if (value) { |
giovannivisentini | 4:eaf6c49a86e4 | 99 | headerFlags |= 0x40; |
Davidroid | 20:31f727872290 | 100 | } else { |
giovannivisentini | 7:1ebd6049fa57 | 101 | headerFlags &= ~0x40; |
Davidroid | 20:31f727872290 | 102 | } |
giovannivisentini | 19:13d84b136a62 | 103 | }//set_ME |
giovannivisentini | 4:eaf6c49a86e4 | 104 | |
giovannivisentini | 4:eaf6c49a86e4 | 105 | /** |
giovannivisentini | 12:ed4d9b8d1410 | 106 | * Check the 'message end' flag. |
giovannivisentini | 4:eaf6c49a86e4 | 107 | * @return true if it is the last record in the message |
giovannivisentini | 4:eaf6c49a86e4 | 108 | */ |
giovannivisentini | 19:13d84b136a62 | 109 | bool get_ME() const { |
giovannivisentini | 4:eaf6c49a86e4 | 110 | return (headerFlags & 0x40) != 0; |
giovannivisentini | 19:13d84b136a62 | 111 | }//get_ME |
giovannivisentini | 4:eaf6c49a86e4 | 112 | |
giovannivisentini | 4:eaf6c49a86e4 | 113 | /** |
giovannivisentini | 12:ed4d9b8d1410 | 114 | * Set the 'Chunk' flag. |
giovannivisentini | 12:ed4d9b8d1410 | 115 | * @param value True if the record is in the first record chunk or in a middle record |
giovannivisentini | 12:ed4d9b8d1410 | 116 | * chunk of a chunked payload. |
giovannivisentini | 4:eaf6c49a86e4 | 117 | */ |
giovannivisentini | 19:13d84b136a62 | 118 | void set_CF(bool value) { |
Davidroid | 20:31f727872290 | 119 | if (value) { |
giovannivisentini | 4:eaf6c49a86e4 | 120 | headerFlags |= 0x20; |
Davidroid | 20:31f727872290 | 121 | } else { |
giovannivisentini | 7:1ebd6049fa57 | 122 | headerFlags &= ~0x20; |
Davidroid | 20:31f727872290 | 123 | } |
giovannivisentini | 19:13d84b136a62 | 124 | }//set_CF |
giovannivisentini | 4:eaf6c49a86e4 | 125 | |
giovannivisentini | 4:eaf6c49a86e4 | 126 | /** |
giovannivisentini | 12:ed4d9b8d1410 | 127 | * Check the 'Chunk' flag value. |
giovannivisentini | 12:ed4d9b8d1410 | 128 | * @return true if the record is in the first record chunk or in a middle record |
giovannivisentini | 4:eaf6c49a86e4 | 129 | * chunk of a chunked payload |
giovannivisentini | 4:eaf6c49a86e4 | 130 | */ |
giovannivisentini | 19:13d84b136a62 | 131 | bool get_CF() const { |
giovannivisentini | 4:eaf6c49a86e4 | 132 | return (headerFlags & 0x20) != 0; |
giovannivisentini | 19:13d84b136a62 | 133 | }//get_CF |
giovannivisentini | 4:eaf6c49a86e4 | 134 | |
giovannivisentini | 4:eaf6c49a86e4 | 135 | /** |
giovannivisentini | 12:ed4d9b8d1410 | 136 | * Set the 'Short record' flag value. |
giovannivisentini | 12:ed4d9b8d1410 | 137 | * @param value True if the record size can be encoded with 8 bits. |
giovannivisentini | 4:eaf6c49a86e4 | 138 | */ |
giovannivisentini | 19:13d84b136a62 | 139 | void set_SR(bool value) { |
Davidroid | 20:31f727872290 | 140 | if (value) { |
giovannivisentini | 4:eaf6c49a86e4 | 141 | headerFlags |= 0x10; |
Davidroid | 20:31f727872290 | 142 | } else { |
giovannivisentini | 7:1ebd6049fa57 | 143 | headerFlags &= ~0x10; |
Davidroid | 20:31f727872290 | 144 | } |
giovannivisentini | 4:eaf6c49a86e4 | 145 | }//setSR |
giovannivisentini | 4:eaf6c49a86e4 | 146 | |
giovannivisentini | 4:eaf6c49a86e4 | 147 | /** |
giovannivisentini | 12:ed4d9b8d1410 | 148 | * Check the 'Short record' flag. |
giovannivisentini | 12:ed4d9b8d1410 | 149 | * @return true if the short range header format is set |
giovannivisentini | 4:eaf6c49a86e4 | 150 | */ |
giovannivisentini | 19:13d84b136a62 | 151 | bool get_SR() const { |
giovannivisentini | 4:eaf6c49a86e4 | 152 | return (headerFlags & 0x10) != 0; |
giovannivisentini | 4:eaf6c49a86e4 | 153 | }//getSR |
giovannivisentini | 4:eaf6c49a86e4 | 154 | |
giovannivisentini | 4:eaf6c49a86e4 | 155 | /** |
giovannivisentini | 12:ed4d9b8d1410 | 156 | * Set the 'ID length' flag. |
giovannivisentini | 12:ed4d9b8d1410 | 157 | * @param value True if the 'ID length' value is used. |
giovannivisentini | 4:eaf6c49a86e4 | 158 | */ |
giovannivisentini | 19:13d84b136a62 | 159 | void set_IL(bool value) { |
Davidroid | 20:31f727872290 | 160 | if (value) { |
giovannivisentini | 4:eaf6c49a86e4 | 161 | headerFlags |= 0x08; |
Davidroid | 20:31f727872290 | 162 | } else { |
giovannivisentini | 7:1ebd6049fa57 | 163 | headerFlags &= ~0x08; |
Davidroid | 20:31f727872290 | 164 | } |
giovannivisentini | 4:eaf6c49a86e4 | 165 | }//setIL |
giovannivisentini | 4:eaf6c49a86e4 | 166 | |
giovannivisentini | 4:eaf6c49a86e4 | 167 | /** |
giovannivisentini | 12:ed4d9b8d1410 | 168 | * Check the 'ID length' flag. |
giovannivisentini | 12:ed4d9b8d1410 | 169 | * @param value True if 'ID length' is set. |
giovannivisentini | 4:eaf6c49a86e4 | 170 | */ |
giovannivisentini | 19:13d84b136a62 | 171 | bool get_IL() const { |
giovannivisentini | 4:eaf6c49a86e4 | 172 | return (headerFlags & 0x08) != 0; |
giovannivisentini | 4:eaf6c49a86e4 | 173 | }//getIL |
giovannivisentini | 4:eaf6c49a86e4 | 174 | |
giovannivisentini | 4:eaf6c49a86e4 | 175 | /** |
giovannivisentini | 12:ed4d9b8d1410 | 176 | * Set the type name format field. |
giovannivisentini | 12:ed4d9b8d1410 | 177 | * @param value Record type name format. |
giovannivisentini | 4:eaf6c49a86e4 | 178 | */ |
giovannivisentini | 19:13d84b136a62 | 179 | void set_FNT(const TypeNameFormat_t value) { |
giovannivisentini | 4:eaf6c49a86e4 | 180 | uint8_t temp = (uint8_t) value; |
giovannivisentini | 4:eaf6c49a86e4 | 181 | temp &= 0x07; //keep the first 3 bits |
giovannivisentini | 4:eaf6c49a86e4 | 182 | headerFlags &= 0xF8; //clean the fist 3 bits |
giovannivisentini | 4:eaf6c49a86e4 | 183 | headerFlags |= temp; //set the fist 3 bits |
giovannivisentini | 4:eaf6c49a86e4 | 184 | }//setFNT |
giovannivisentini | 4:eaf6c49a86e4 | 185 | |
giovannivisentini | 4:eaf6c49a86e4 | 186 | /** |
giovannivisentini | 12:ed4d9b8d1410 | 187 | * Get the record type name. |
giovannivisentini | 4:eaf6c49a86e4 | 188 | * @return type name format of the record |
giovannivisentini | 4:eaf6c49a86e4 | 189 | */ |
giovannivisentini | 19:13d84b136a62 | 190 | TypeNameFormat_t get_FNT() const { |
giovannivisentini | 4:eaf6c49a86e4 | 191 | return (TypeNameFormat_t) (headerFlags & 0x07); |
giovannivisentini | 4:eaf6c49a86e4 | 192 | } |
giovannivisentini | 4:eaf6c49a86e4 | 193 | |
giovannivisentini | 4:eaf6c49a86e4 | 194 | /** |
giovannivisentini | 12:ed4d9b8d1410 | 195 | * Set the record payload length. |
giovannivisentini | 12:ed4d9b8d1410 | 196 | * @par This function will update the SR field as needed. |
giovannivisentini | 7:1ebd6049fa57 | 197 | * @param length payload length |
giovannivisentini | 4:eaf6c49a86e4 | 198 | */ |
giovannivisentini | 19:13d84b136a62 | 199 | void set_payload_length(uint32_t length) { |
giovannivisentini | 7:1ebd6049fa57 | 200 | payloadLength = length; |
giovannivisentini | 19:13d84b136a62 | 201 | set_SR(payloadLength <= 255); |
giovannivisentini | 4:eaf6c49a86e4 | 202 | } |
giovannivisentini | 4:eaf6c49a86e4 | 203 | |
giovannivisentini | 4:eaf6c49a86e4 | 204 | /** |
giovannivisentini | 12:ed4d9b8d1410 | 205 | * Get the payload length. |
giovannivisentini | 7:1ebd6049fa57 | 206 | * @return payload length |
giovannivisentini | 4:eaf6c49a86e4 | 207 | */ |
giovannivisentini | 19:13d84b136a62 | 208 | uint32_t get_payload_length() const { |
giovannivisentini | 7:1ebd6049fa57 | 209 | return payloadLength; |
giovannivisentini | 4:eaf6c49a86e4 | 210 | } |
giovannivisentini | 4:eaf6c49a86e4 | 211 | |
giovannivisentini | 4:eaf6c49a86e4 | 212 | /** |
giovannivisentini | 12:ed4d9b8d1410 | 213 | * Set the type length. |
giovannivisentini | 12:ed4d9b8d1410 | 214 | * @param size. |
giovannivisentini | 4:eaf6c49a86e4 | 215 | */ |
giovannivisentini | 19:13d84b136a62 | 216 | void set_type_length(uint8_t size) { |
giovannivisentini | 4:eaf6c49a86e4 | 217 | typeLength = size; |
giovannivisentini | 4:eaf6c49a86e4 | 218 | } |
giovannivisentini | 4:eaf6c49a86e4 | 219 | |
giovannivisentini | 4:eaf6c49a86e4 | 220 | /** |
giovannivisentini | 12:ed4d9b8d1410 | 221 | * Get the type length. |
giovannivisentini | 12:ed4d9b8d1410 | 222 | * @return type length |
giovannivisentini | 4:eaf6c49a86e4 | 223 | */ |
giovannivisentini | 19:13d84b136a62 | 224 | uint8_t get_type_length() const { |
giovannivisentini | 4:eaf6c49a86e4 | 225 | return typeLength; |
giovannivisentini | 4:eaf6c49a86e4 | 226 | } |
giovannivisentini | 4:eaf6c49a86e4 | 227 | |
giovannivisentini | 4:eaf6c49a86e4 | 228 | /** |
giovannivisentini | 18:cf1dd5c931c2 | 229 | * Set the id length. |
giovannivisentini | 18:cf1dd5c931c2 | 230 | * @param size. |
giovannivisentini | 18:cf1dd5c931c2 | 231 | */ |
giovannivisentini | 19:13d84b136a62 | 232 | void set_id_length(uint8_t size) { |
Davidroid | 20:31f727872290 | 233 | if (size!=0) { |
giovannivisentini | 18:cf1dd5c931c2 | 234 | idLength = size; |
giovannivisentini | 19:13d84b136a62 | 235 | set_IL(true); |
Davidroid | 20:31f727872290 | 236 | } else { |
giovannivisentini | 19:13d84b136a62 | 237 | set_IL(false); |
Davidroid | 20:31f727872290 | 238 | } |
giovannivisentini | 18:cf1dd5c931c2 | 239 | } |
giovannivisentini | 18:cf1dd5c931c2 | 240 | |
giovannivisentini | 18:cf1dd5c931c2 | 241 | /** |
giovannivisentini | 18:cf1dd5c931c2 | 242 | * Get the id length. |
giovannivisentini | 18:cf1dd5c931c2 | 243 | * @return id length |
giovannivisentini | 18:cf1dd5c931c2 | 244 | */ |
giovannivisentini | 19:13d84b136a62 | 245 | uint8_t get_id_length() const { |
giovannivisentini | 18:cf1dd5c931c2 | 246 | return idLength; |
giovannivisentini | 18:cf1dd5c931c2 | 247 | } |
giovannivisentini | 18:cf1dd5c931c2 | 248 | |
giovannivisentini | 18:cf1dd5c931c2 | 249 | /** |
giovannivisentini | 12:ed4d9b8d1410 | 250 | * Get the number of bytes needed to store this record. |
giovannivisentini | 4:eaf6c49a86e4 | 251 | * @return 3 or 6 |
giovannivisentini | 4:eaf6c49a86e4 | 252 | */ |
giovannivisentini | 19:13d84b136a62 | 253 | uint16_t get_record_length() const { |
giovannivisentini | 19:13d84b136a62 | 254 | return (get_SR() ? 3 : 6) + (get_IL() ? idLength : 0)+typeLength + payloadLength; |
giovannivisentini | 4:eaf6c49a86e4 | 255 | } |
giovannivisentini | 4:eaf6c49a86e4 | 256 | |
giovannivisentini | 4:eaf6c49a86e4 | 257 | /** |
giovannivisentini | 12:ed4d9b8d1410 | 258 | * Store the header information in the buffer. |
giovannivisentini | 12:ed4d9b8d1410 | 259 | * @param[out] outBuffer Buffer to write the header into. |
giovannivisentini | 4:eaf6c49a86e4 | 260 | * @return number of write bytes |
giovannivisentini | 4:eaf6c49a86e4 | 261 | */ |
giovannivisentini | 19:13d84b136a62 | 262 | uint8_t write_header(uint8_t *outBuffer) const { |
giovannivisentini | 4:eaf6c49a86e4 | 263 | |
giovannivisentini | 4:eaf6c49a86e4 | 264 | uint32_t index = 0; |
giovannivisentini | 4:eaf6c49a86e4 | 265 | |
giovannivisentini | 4:eaf6c49a86e4 | 266 | outBuffer[index++] = headerFlags; |
giovannivisentini | 4:eaf6c49a86e4 | 267 | outBuffer[index++] = typeLength; |
giovannivisentini | 19:13d84b136a62 | 268 | if (get_SR()) { |
giovannivisentini | 7:1ebd6049fa57 | 269 | outBuffer[index++] = (uint8_t) payloadLength; |
giovannivisentini | 4:eaf6c49a86e4 | 270 | } else { |
giovannivisentini | 7:1ebd6049fa57 | 271 | outBuffer[index++] = (uint8_t) ((payloadLength & 0xFF000000) |
giovannivisentini | 4:eaf6c49a86e4 | 272 | >> 24); |
giovannivisentini | 7:1ebd6049fa57 | 273 | outBuffer[index++] = (uint8_t) ((payloadLength & 0x00FF0000) |
giovannivisentini | 4:eaf6c49a86e4 | 274 | >> 16); |
giovannivisentini | 7:1ebd6049fa57 | 275 | outBuffer[index++] = (uint8_t) ((payloadLength & 0x0000FF00) |
giovannivisentini | 4:eaf6c49a86e4 | 276 | >> 8); |
giovannivisentini | 7:1ebd6049fa57 | 277 | outBuffer[index++] = (uint8_t) (payloadLength & 0x000000FF); |
giovannivisentini | 4:eaf6c49a86e4 | 278 | } //if-else |
Davidroid | 20:31f727872290 | 279 | if (get_IL()) { |
giovannivisentini | 18:cf1dd5c931c2 | 280 | outBuffer[index++] =idLength; |
Davidroid | 20:31f727872290 | 281 | } |
Davidroid | 20:31f727872290 | 282 | |
giovannivisentini | 4:eaf6c49a86e4 | 283 | return index; |
giovannivisentini | 4:eaf6c49a86e4 | 284 | } //writeHeader |
giovannivisentini | 4:eaf6c49a86e4 | 285 | |
giovannivisentini | 4:eaf6c49a86e4 | 286 | /** |
giovannivisentini | 12:ed4d9b8d1410 | 287 | * Load an header from a buffer. |
giovannivisentini | 12:ed4d9b8d1410 | 288 | * @param buffer Buffer to load the header from. |
giovannivisentini | 4:eaf6c49a86e4 | 289 | * @return number of read bytes |
giovannivisentini | 4:eaf6c49a86e4 | 290 | */ |
giovannivisentini | 19:13d84b136a62 | 291 | uint16_t load_header(const uint8_t * const buffer) { |
giovannivisentini | 4:eaf6c49a86e4 | 292 | uint32_t index = 0; |
giovannivisentini | 4:eaf6c49a86e4 | 293 | headerFlags = buffer[index++]; |
giovannivisentini | 4:eaf6c49a86e4 | 294 | typeLength = buffer[index++]; |
giovannivisentini | 19:13d84b136a62 | 295 | if (get_SR()) { |
giovannivisentini | 7:1ebd6049fa57 | 296 | payloadLength = buffer[index++]; |
giovannivisentini | 4:eaf6c49a86e4 | 297 | } else { |
giovannivisentini | 7:1ebd6049fa57 | 298 | payloadLength = (((uint32_t) buffer[index + 0]) << 24) |
Davidroid | 20:31f727872290 | 299 | | (((uint32_t) buffer[index + 1]) << 16) |
Davidroid | 20:31f727872290 | 300 | | (((uint32_t) buffer[index + 2]) << 8) |
Davidroid | 20:31f727872290 | 301 | | ((uint32_t) buffer[index + 3]); |
giovannivisentini | 4:eaf6c49a86e4 | 302 | index += 4; |
giovannivisentini | 4:eaf6c49a86e4 | 303 | } //if-else |
Davidroid | 20:31f727872290 | 304 | if (get_IL()) { |
Davidroid | 20:31f727872290 | 305 | idLength = buffer[index++]; |
Davidroid | 20:31f727872290 | 306 | } else { |
Davidroid | 20:31f727872290 | 307 | idLength = 0; |
Davidroid | 20:31f727872290 | 308 | } |
Davidroid | 20:31f727872290 | 309 | |
giovannivisentini | 4:eaf6c49a86e4 | 310 | return index; |
giovannivisentini | 4:eaf6c49a86e4 | 311 | } //loadHeader |
giovannivisentini | 4:eaf6c49a86e4 | 312 | |
giovannivisentini | 7:1ebd6049fa57 | 313 | /** |
giovannivisentini | 12:ed4d9b8d1410 | 314 | * Equal operator. |
giovannivisentini | 12:ed4d9b8d1410 | 315 | * @param other Other object to compare with. |
giovannivisentini | 12:ed4d9b8d1410 | 316 | * @return true if the two record headers are equal |
giovannivisentini | 7:1ebd6049fa57 | 317 | */ |
giovannivisentini | 7:1ebd6049fa57 | 318 | bool operator==(const RecordHeader &other) const{ |
giovannivisentini | 7:1ebd6049fa57 | 319 | return (headerFlags==other.headerFlags) && |
Davidroid | 20:31f727872290 | 320 | (typeLength==other.typeLength) && |
Davidroid | 20:31f727872290 | 321 | (payloadLength==other.payloadLength); |
giovannivisentini | 7:1ebd6049fa57 | 322 | } |
giovannivisentini | 7:1ebd6049fa57 | 323 | |
giovannivisentini | 7:1ebd6049fa57 | 324 | bool operator!=(const RecordHeader &other) const{ |
giovannivisentini | 7:1ebd6049fa57 | 325 | return !(*this==other); |
giovannivisentini | 7:1ebd6049fa57 | 326 | } |
giovannivisentini | 4:eaf6c49a86e4 | 327 | |
giovannivisentini | 4:eaf6c49a86e4 | 328 | private: |
giovannivisentini | 18:cf1dd5c931c2 | 329 | uint8_t idLength; |
giovannivisentini | 4:eaf6c49a86e4 | 330 | uint8_t headerFlags; |
giovannivisentini | 4:eaf6c49a86e4 | 331 | uint8_t typeLength; |
giovannivisentini | 7:1ebd6049fa57 | 332 | uint32_t payloadLength; |
giovannivisentini | 4:eaf6c49a86e4 | 333 | }; |
giovannivisentini | 4:eaf6c49a86e4 | 334 | |
giovannivisentini | 4:eaf6c49a86e4 | 335 | } /* namespace NDefLib */ |
giovannivisentini | 4:eaf6c49a86e4 | 336 | |
giovannivisentini | 4:eaf6c49a86e4 | 337 | #endif /* NDEFLIB_RECORDHEADER_H_ */ |
Davidroid | 20:31f727872290 | 338 | |
Davidroid | 20:31f727872290 | 339 | |
Davidroid | 20:31f727872290 | 340 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |