PN532 NFC library for Seeed Studio's NFC Shield
Fork of PN532 by
PN532.cpp@4:0774b8298eb8, 2013-11-21 (annotated)
- Committer:
- yihui
- Date:
- Thu Nov 21 04:41:47 2013 +0000
- Revision:
- 4:0774b8298eb8
- Parent:
- 3:4189a10038e6
- Child:
- 5:51f820fbd18a
- Child:
- 7:26c1b3b6c192
include stdio.h
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
yihui | 1:b8cab5222fd0 | 1 | /**************************************************************************/ |
yihui | 1:b8cab5222fd0 | 2 | /*! |
yihui | 1:b8cab5222fd0 | 3 | @file PN532.cpp |
yihui | 3:4189a10038e6 | 4 | @author Adafruit Industries & Seeed Studio |
yihui | 3:4189a10038e6 | 5 | @license BSD |
yihui | 1:b8cab5222fd0 | 6 | */ |
yihui | 1:b8cab5222fd0 | 7 | /**************************************************************************/ |
yihui | 0:9c6b9280c0e1 | 8 | |
yihui | 3:4189a10038e6 | 9 | #include "PN532.h" |
yihui | 3:4189a10038e6 | 10 | #include "PN532_debug.h" |
yihui | 0:9c6b9280c0e1 | 11 | #include <string.h> |
yihui | 0:9c6b9280c0e1 | 12 | |
yihui | 4:0774b8298eb8 | 13 | #ifndef ARDUINO |
yihui | 4:0774b8298eb8 | 14 | #include <stdio.h> |
yihui | 4:0774b8298eb8 | 15 | #endif |
yihui | 4:0774b8298eb8 | 16 | |
yihui | 0:9c6b9280c0e1 | 17 | #define HAL(func) (_interface->func) |
yihui | 0:9c6b9280c0e1 | 18 | |
yihui | 0:9c6b9280c0e1 | 19 | PN532::PN532(PN532Interface &interface) |
yihui | 0:9c6b9280c0e1 | 20 | { |
yihui | 1:b8cab5222fd0 | 21 | _interface = &interface; |
yihui | 0:9c6b9280c0e1 | 22 | } |
yihui | 0:9c6b9280c0e1 | 23 | |
yihui | 0:9c6b9280c0e1 | 24 | /**************************************************************************/ |
yihui | 1:b8cab5222fd0 | 25 | /*! |
yihui | 0:9c6b9280c0e1 | 26 | @brief Setups the HW |
yihui | 0:9c6b9280c0e1 | 27 | */ |
yihui | 0:9c6b9280c0e1 | 28 | /**************************************************************************/ |
yihui | 0:9c6b9280c0e1 | 29 | void PN532::begin() |
yihui | 0:9c6b9280c0e1 | 30 | { |
yihui | 0:9c6b9280c0e1 | 31 | HAL(begin)(); |
yihui | 0:9c6b9280c0e1 | 32 | HAL(wakeup)(); |
yihui | 0:9c6b9280c0e1 | 33 | } |
yihui | 1:b8cab5222fd0 | 34 | |
yihui | 0:9c6b9280c0e1 | 35 | /**************************************************************************/ |
yihui | 1:b8cab5222fd0 | 36 | /*! |
yihui | 0:9c6b9280c0e1 | 37 | @brief Prints a hexadecimal value in plain characters |
yihui | 0:9c6b9280c0e1 | 38 | |
yihui | 0:9c6b9280c0e1 | 39 | @param data Pointer to the uint8_t data |
yihui | 0:9c6b9280c0e1 | 40 | @param numBytes Data length in bytes |
yihui | 0:9c6b9280c0e1 | 41 | */ |
yihui | 0:9c6b9280c0e1 | 42 | /**************************************************************************/ |
yihui | 1:b8cab5222fd0 | 43 | void PN532::PrintHex(const uint8_t *data, const uint32_t numBytes) |
yihui | 0:9c6b9280c0e1 | 44 | { |
yihui | 3:4189a10038e6 | 45 | #ifdef ARDUINO |
yihui | 1:b8cab5222fd0 | 46 | for (uint8_t i = 0; i < numBytes; i++) { |
yihui | 3:4189a10038e6 | 47 | if (data[i] < 0x10) { |
yihui | 3:4189a10038e6 | 48 | Serial.print(" 0"); |
yihui | 3:4189a10038e6 | 49 | } else { |
yihui | 3:4189a10038e6 | 50 | Serial.print(' '); |
yihui | 3:4189a10038e6 | 51 | } |
yihui | 3:4189a10038e6 | 52 | Serial.print(data[i], HEX); |
yihui | 1:b8cab5222fd0 | 53 | } |
yihui | 3:4189a10038e6 | 54 | Serial.println(""); |
yihui | 3:4189a10038e6 | 55 | #else |
yihui | 3:4189a10038e6 | 56 | for (uint8_t i = 0; i < numBytes; i++) { |
yihui | 3:4189a10038e6 | 57 | printf(" %2X", data[i]); |
yihui | 3:4189a10038e6 | 58 | } |
yihui | 3:4189a10038e6 | 59 | printf("\n"); |
yihui | 3:4189a10038e6 | 60 | #endif |
yihui | 0:9c6b9280c0e1 | 61 | } |
yihui | 0:9c6b9280c0e1 | 62 | |
yihui | 0:9c6b9280c0e1 | 63 | /**************************************************************************/ |
yihui | 1:b8cab5222fd0 | 64 | /*! |
yihui | 0:9c6b9280c0e1 | 65 | @brief Prints a hexadecimal value in plain characters, along with |
yihui | 0:9c6b9280c0e1 | 66 | the char equivalents in the following format |
yihui | 0:9c6b9280c0e1 | 67 | |
yihui | 0:9c6b9280c0e1 | 68 | 00 00 00 00 00 00 ...... |
yihui | 0:9c6b9280c0e1 | 69 | |
yihui | 1:b8cab5222fd0 | 70 | @param data Pointer to the data |
yihui | 0:9c6b9280c0e1 | 71 | @param numBytes Data length in bytes |
yihui | 0:9c6b9280c0e1 | 72 | */ |
yihui | 0:9c6b9280c0e1 | 73 | /**************************************************************************/ |
yihui | 1:b8cab5222fd0 | 74 | void PN532::PrintHexChar(const uint8_t *data, const uint32_t numBytes) |
yihui | 0:9c6b9280c0e1 | 75 | { |
yihui | 3:4189a10038e6 | 76 | #ifdef ARDUINO |
yihui | 1:b8cab5222fd0 | 77 | for (uint8_t i = 0; i < numBytes; i++) { |
yihui | 3:4189a10038e6 | 78 | if (data[i] < 0x10) { |
yihui | 3:4189a10038e6 | 79 | Serial.print(" 0"); |
yihui | 3:4189a10038e6 | 80 | } else { |
yihui | 3:4189a10038e6 | 81 | Serial.print(' '); |
yihui | 3:4189a10038e6 | 82 | } |
yihui | 3:4189a10038e6 | 83 | Serial.print(data[i], HEX); |
yihui | 3:4189a10038e6 | 84 | } |
yihui | 3:4189a10038e6 | 85 | Serial.print(" "); |
yihui | 3:4189a10038e6 | 86 | for (uint8_t i = 0; i < numBytes; i++) { |
yihui | 3:4189a10038e6 | 87 | char c = data[i]; |
yihui | 3:4189a10038e6 | 88 | if (c <= 0x1f || c > 0x7f) { |
yihui | 3:4189a10038e6 | 89 | Serial.print('.'); |
yihui | 3:4189a10038e6 | 90 | } else { |
yihui | 3:4189a10038e6 | 91 | Serial.print(c); |
yihui | 3:4189a10038e6 | 92 | } |
yihui | 1:b8cab5222fd0 | 93 | } |
yihui | 3:4189a10038e6 | 94 | Serial.println(""); |
yihui | 3:4189a10038e6 | 95 | #else |
yihui | 3:4189a10038e6 | 96 | for (uint8_t i = 0; i < numBytes; i++) { |
yihui | 3:4189a10038e6 | 97 | printf(" %2X", data[i]); |
yihui | 3:4189a10038e6 | 98 | } |
yihui | 3:4189a10038e6 | 99 | printf(" "); |
yihui | 3:4189a10038e6 | 100 | for (uint8_t i = 0; i < numBytes; i++) { |
yihui | 3:4189a10038e6 | 101 | char c = data[i]; |
yihui | 3:4189a10038e6 | 102 | if (c <= 0x1f || c > 0x7f) { |
yihui | 3:4189a10038e6 | 103 | printf("."); |
yihui | 3:4189a10038e6 | 104 | } else { |
yihui | 3:4189a10038e6 | 105 | printf("%c", c); |
yihui | 3:4189a10038e6 | 106 | } |
yihui | 3:4189a10038e6 | 107 | printf("\n"); |
yihui | 3:4189a10038e6 | 108 | } |
yihui | 3:4189a10038e6 | 109 | #endif |
yihui | 0:9c6b9280c0e1 | 110 | } |
yihui | 1:b8cab5222fd0 | 111 | |
yihui | 0:9c6b9280c0e1 | 112 | /**************************************************************************/ |
yihui | 1:b8cab5222fd0 | 113 | /*! |
yihui | 0:9c6b9280c0e1 | 114 | @brief Checks the firmware version of the PN5xx chip |
yihui | 0:9c6b9280c0e1 | 115 | |
yihui | 0:9c6b9280c0e1 | 116 | @returns The chip's firmware version and ID |
yihui | 0:9c6b9280c0e1 | 117 | */ |
yihui | 0:9c6b9280c0e1 | 118 | /**************************************************************************/ |
yihui | 1:b8cab5222fd0 | 119 | uint32_t PN532::getFirmwareVersion(void) |
yihui | 1:b8cab5222fd0 | 120 | { |
yihui | 1:b8cab5222fd0 | 121 | uint32_t response; |
yihui | 0:9c6b9280c0e1 | 122 | |
yihui | 1:b8cab5222fd0 | 123 | pn532_packetbuffer[0] = PN532_COMMAND_GETFIRMWAREVERSION; |
yihui | 1:b8cab5222fd0 | 124 | |
yihui | 1:b8cab5222fd0 | 125 | if (HAL(writeCommand)(pn532_packetbuffer, 1)) { |
yihui | 1:b8cab5222fd0 | 126 | return 0; |
yihui | 1:b8cab5222fd0 | 127 | } |
yihui | 0:9c6b9280c0e1 | 128 | |
yihui | 1:b8cab5222fd0 | 129 | // read data packet |
yihui | 1:b8cab5222fd0 | 130 | int16_t status = HAL(readResponse)(pn532_packetbuffer, sizeof(pn532_packetbuffer)); |
yihui | 1:b8cab5222fd0 | 131 | if (0 > status) { |
yihui | 1:b8cab5222fd0 | 132 | return 0; |
yihui | 1:b8cab5222fd0 | 133 | } |
yihui | 0:9c6b9280c0e1 | 134 | |
yihui | 1:b8cab5222fd0 | 135 | response = pn532_packetbuffer[0]; |
yihui | 1:b8cab5222fd0 | 136 | response <<= 8; |
yihui | 1:b8cab5222fd0 | 137 | response |= pn532_packetbuffer[1]; |
yihui | 1:b8cab5222fd0 | 138 | response <<= 8; |
yihui | 1:b8cab5222fd0 | 139 | response |= pn532_packetbuffer[2]; |
yihui | 1:b8cab5222fd0 | 140 | response <<= 8; |
yihui | 1:b8cab5222fd0 | 141 | response |= pn532_packetbuffer[3]; |
yihui | 1:b8cab5222fd0 | 142 | |
yihui | 1:b8cab5222fd0 | 143 | return response; |
yihui | 0:9c6b9280c0e1 | 144 | } |
yihui | 0:9c6b9280c0e1 | 145 | |
yihui | 0:9c6b9280c0e1 | 146 | |
yihui | 0:9c6b9280c0e1 | 147 | /**************************************************************************/ |
yihui | 1:b8cab5222fd0 | 148 | /*! |
yihui | 0:9c6b9280c0e1 | 149 | Writes an 8-bit value that sets the state of the PN532's GPIO pins |
yihui | 1:b8cab5222fd0 | 150 | |
yihui | 0:9c6b9280c0e1 | 151 | @warning This function is provided exclusively for board testing and |
yihui | 0:9c6b9280c0e1 | 152 | is dangerous since it will throw an error if any pin other |
yihui | 0:9c6b9280c0e1 | 153 | than the ones marked "Can be used as GPIO" are modified! All |
yihui | 0:9c6b9280c0e1 | 154 | pins that can not be used as GPIO should ALWAYS be left high |
yihui | 0:9c6b9280c0e1 | 155 | (value = 1) or the system will become unstable and a HW reset |
yihui | 0:9c6b9280c0e1 | 156 | will be required to recover the PN532. |
yihui | 1:b8cab5222fd0 | 157 | |
yihui | 0:9c6b9280c0e1 | 158 | pinState[0] = P30 Can be used as GPIO |
yihui | 0:9c6b9280c0e1 | 159 | pinState[1] = P31 Can be used as GPIO |
yihui | 0:9c6b9280c0e1 | 160 | pinState[2] = P32 *** RESERVED (Must be 1!) *** |
yihui | 0:9c6b9280c0e1 | 161 | pinState[3] = P33 Can be used as GPIO |
yihui | 0:9c6b9280c0e1 | 162 | pinState[4] = P34 *** RESERVED (Must be 1!) *** |
yihui | 0:9c6b9280c0e1 | 163 | pinState[5] = P35 Can be used as GPIO |
yihui | 1:b8cab5222fd0 | 164 | |
yihui | 0:9c6b9280c0e1 | 165 | @returns 1 if everything executed properly, 0 for an error |
yihui | 0:9c6b9280c0e1 | 166 | */ |
yihui | 0:9c6b9280c0e1 | 167 | /**************************************************************************/ |
yihui | 1:b8cab5222fd0 | 168 | bool PN532::writeGPIO(uint8_t pinstate) |
yihui | 1:b8cab5222fd0 | 169 | { |
yihui | 1:b8cab5222fd0 | 170 | // Make sure pinstate does not try to toggle P32 or P34 |
yihui | 1:b8cab5222fd0 | 171 | pinstate |= (1 << PN532_GPIO_P32) | (1 << PN532_GPIO_P34); |
yihui | 1:b8cab5222fd0 | 172 | |
yihui | 1:b8cab5222fd0 | 173 | // Fill command buffer |
yihui | 1:b8cab5222fd0 | 174 | pn532_packetbuffer[0] = PN532_COMMAND_WRITEGPIO; |
yihui | 1:b8cab5222fd0 | 175 | pn532_packetbuffer[1] = PN532_GPIO_VALIDATIONBIT | pinstate; // P3 Pins |
yihui | 1:b8cab5222fd0 | 176 | pn532_packetbuffer[2] = 0x00; // P7 GPIO Pins (not used ... taken by I2C) |
yihui | 0:9c6b9280c0e1 | 177 | |
yihui | 1:b8cab5222fd0 | 178 | DMSG("Writing P3 GPIO: "); |
yihui | 1:b8cab5222fd0 | 179 | DMSG_HEX(pn532_packetbuffer[1]); |
yihui | 1:b8cab5222fd0 | 180 | DMSG("\n"); |
yihui | 0:9c6b9280c0e1 | 181 | |
yihui | 1:b8cab5222fd0 | 182 | // Send the WRITEGPIO command (0x0E) |
yihui | 1:b8cab5222fd0 | 183 | if (HAL(writeCommand)(pn532_packetbuffer, 3)) |
yihui | 1:b8cab5222fd0 | 184 | return 0; |
yihui | 0:9c6b9280c0e1 | 185 | |
yihui | 1:b8cab5222fd0 | 186 | return (0 < HAL(readResponse)(pn532_packetbuffer, sizeof(pn532_packetbuffer))); |
yihui | 0:9c6b9280c0e1 | 187 | } |
yihui | 0:9c6b9280c0e1 | 188 | |
yihui | 0:9c6b9280c0e1 | 189 | /**************************************************************************/ |
yihui | 1:b8cab5222fd0 | 190 | /*! |
yihui | 0:9c6b9280c0e1 | 191 | Reads the state of the PN532's GPIO pins |
yihui | 1:b8cab5222fd0 | 192 | |
yihui | 0:9c6b9280c0e1 | 193 | @returns An 8-bit value containing the pin state where: |
yihui | 1:b8cab5222fd0 | 194 | |
yihui | 1:b8cab5222fd0 | 195 | pinState[0] = P30 |
yihui | 1:b8cab5222fd0 | 196 | pinState[1] = P31 |
yihui | 1:b8cab5222fd0 | 197 | pinState[2] = P32 |
yihui | 1:b8cab5222fd0 | 198 | pinState[3] = P33 |
yihui | 1:b8cab5222fd0 | 199 | pinState[4] = P34 |
yihui | 1:b8cab5222fd0 | 200 | pinState[5] = P35 |
yihui | 0:9c6b9280c0e1 | 201 | */ |
yihui | 0:9c6b9280c0e1 | 202 | /**************************************************************************/ |
yihui | 1:b8cab5222fd0 | 203 | uint8_t PN532::readGPIO(void) |
yihui | 1:b8cab5222fd0 | 204 | { |
yihui | 1:b8cab5222fd0 | 205 | pn532_packetbuffer[0] = PN532_COMMAND_READGPIO; |
yihui | 0:9c6b9280c0e1 | 206 | |
yihui | 1:b8cab5222fd0 | 207 | // Send the READGPIO command (0x0C) |
yihui | 1:b8cab5222fd0 | 208 | if (HAL(writeCommand)(pn532_packetbuffer, 1)) |
yihui | 1:b8cab5222fd0 | 209 | return 0x0; |
yihui | 1:b8cab5222fd0 | 210 | |
yihui | 1:b8cab5222fd0 | 211 | HAL(readResponse)(pn532_packetbuffer, sizeof(pn532_packetbuffer)); |
yihui | 1:b8cab5222fd0 | 212 | |
yihui | 1:b8cab5222fd0 | 213 | /* READGPIO response without prefix and suffix should be in the following format: |
yihui | 0:9c6b9280c0e1 | 214 | |
yihui | 1:b8cab5222fd0 | 215 | byte Description |
yihui | 1:b8cab5222fd0 | 216 | ------------- ------------------------------------------ |
yihui | 1:b8cab5222fd0 | 217 | b0 P3 GPIO Pins |
yihui | 1:b8cab5222fd0 | 218 | b1 P7 GPIO Pins (not used ... taken by I2C) |
yihui | 1:b8cab5222fd0 | 219 | b2 Interface Mode Pins (not used ... bus select pins) |
yihui | 1:b8cab5222fd0 | 220 | */ |
yihui | 0:9c6b9280c0e1 | 221 | |
yihui | 0:9c6b9280c0e1 | 222 | |
yihui | 1:b8cab5222fd0 | 223 | DMSG("P3 GPIO: "); DMSG_HEX(pn532_packetbuffer[7]); |
yihui | 1:b8cab5222fd0 | 224 | DMSG("P7 GPIO: "); DMSG_HEX(pn532_packetbuffer[8]); |
yihui | 1:b8cab5222fd0 | 225 | DMSG("I0I1 GPIO: "); DMSG_HEX(pn532_packetbuffer[9]); |
yihui | 1:b8cab5222fd0 | 226 | DMSG("\n"); |
yihui | 1:b8cab5222fd0 | 227 | |
yihui | 1:b8cab5222fd0 | 228 | return pn532_packetbuffer[0]; |
yihui | 0:9c6b9280c0e1 | 229 | } |
yihui | 0:9c6b9280c0e1 | 230 | |
yihui | 0:9c6b9280c0e1 | 231 | /**************************************************************************/ |
yihui | 1:b8cab5222fd0 | 232 | /*! |
yihui | 0:9c6b9280c0e1 | 233 | @brief Configures the SAM (Secure Access Module) |
yihui | 0:9c6b9280c0e1 | 234 | */ |
yihui | 0:9c6b9280c0e1 | 235 | /**************************************************************************/ |
yihui | 1:b8cab5222fd0 | 236 | bool PN532::SAMConfig(void) |
yihui | 1:b8cab5222fd0 | 237 | { |
yihui | 1:b8cab5222fd0 | 238 | pn532_packetbuffer[0] = PN532_COMMAND_SAMCONFIGURATION; |
yihui | 1:b8cab5222fd0 | 239 | pn532_packetbuffer[1] = 0x01; // normal mode; |
yihui | 1:b8cab5222fd0 | 240 | pn532_packetbuffer[2] = 0x14; // timeout 50ms * 20 = 1 second |
yihui | 1:b8cab5222fd0 | 241 | pn532_packetbuffer[3] = 0x01; // use IRQ pin! |
yihui | 0:9c6b9280c0e1 | 242 | |
yihui | 3:4189a10038e6 | 243 | DMSG("SAMConfig\n"); |
yihui | 3:4189a10038e6 | 244 | |
yihui | 1:b8cab5222fd0 | 245 | if (HAL(writeCommand)(pn532_packetbuffer, 4)) |
yihui | 1:b8cab5222fd0 | 246 | return false; |
yihui | 1:b8cab5222fd0 | 247 | |
yihui | 1:b8cab5222fd0 | 248 | return (0 < HAL(readResponse)(pn532_packetbuffer, sizeof(pn532_packetbuffer))); |
yihui | 0:9c6b9280c0e1 | 249 | } |
yihui | 0:9c6b9280c0e1 | 250 | |
yihui | 0:9c6b9280c0e1 | 251 | /**************************************************************************/ |
yihui | 1:b8cab5222fd0 | 252 | /*! |
yihui | 0:9c6b9280c0e1 | 253 | Sets the MxRtyPassiveActivation uint8_t of the RFConfiguration register |
yihui | 1:b8cab5222fd0 | 254 | |
yihui | 0:9c6b9280c0e1 | 255 | @param maxRetries 0xFF to wait forever, 0x00..0xFE to timeout |
yihui | 0:9c6b9280c0e1 | 256 | after mxRetries |
yihui | 1:b8cab5222fd0 | 257 | |
yihui | 0:9c6b9280c0e1 | 258 | @returns 1 if everything executed properly, 0 for an error |
yihui | 0:9c6b9280c0e1 | 259 | */ |
yihui | 0:9c6b9280c0e1 | 260 | /**************************************************************************/ |
yihui | 1:b8cab5222fd0 | 261 | bool PN532::setPassiveActivationRetries(uint8_t maxRetries) |
yihui | 1:b8cab5222fd0 | 262 | { |
yihui | 1:b8cab5222fd0 | 263 | pn532_packetbuffer[0] = PN532_COMMAND_RFCONFIGURATION; |
yihui | 1:b8cab5222fd0 | 264 | pn532_packetbuffer[1] = 5; // Config item 5 (MaxRetries) |
yihui | 1:b8cab5222fd0 | 265 | pn532_packetbuffer[2] = 0xFF; // MxRtyATR (default = 0xFF) |
yihui | 1:b8cab5222fd0 | 266 | pn532_packetbuffer[3] = 0x01; // MxRtyPSL (default = 0x01) |
yihui | 1:b8cab5222fd0 | 267 | pn532_packetbuffer[4] = maxRetries; |
yihui | 1:b8cab5222fd0 | 268 | |
yihui | 1:b8cab5222fd0 | 269 | if (HAL(writeCommand)(pn532_packetbuffer, 5)) |
yihui | 1:b8cab5222fd0 | 270 | return 0x0; // no ACK |
yihui | 1:b8cab5222fd0 | 271 | |
yihui | 3:4189a10038e6 | 272 | return (0 < HAL(readResponse)(pn532_packetbuffer, sizeof(pn532_packetbuffer))); |
yihui | 0:9c6b9280c0e1 | 273 | } |
yihui | 0:9c6b9280c0e1 | 274 | |
yihui | 0:9c6b9280c0e1 | 275 | /***** ISO14443A Commands ******/ |
yihui | 0:9c6b9280c0e1 | 276 | |
yihui | 0:9c6b9280c0e1 | 277 | /**************************************************************************/ |
yihui | 1:b8cab5222fd0 | 278 | /*! |
yihui | 0:9c6b9280c0e1 | 279 | Waits for an ISO14443A target to enter the field |
yihui | 1:b8cab5222fd0 | 280 | |
yihui | 0:9c6b9280c0e1 | 281 | @param cardBaudRate Baud rate of the card |
yihui | 0:9c6b9280c0e1 | 282 | @param uid Pointer to the array that will be populated |
yihui | 0:9c6b9280c0e1 | 283 | with the card's UID (up to 7 bytes) |
yihui | 0:9c6b9280c0e1 | 284 | @param uidLength Pointer to the variable that will hold the |
yihui | 0:9c6b9280c0e1 | 285 | length of the card's UID. |
yihui | 1:b8cab5222fd0 | 286 | |
yihui | 0:9c6b9280c0e1 | 287 | @returns 1 if everything executed properly, 0 for an error |
yihui | 0:9c6b9280c0e1 | 288 | */ |
yihui | 0:9c6b9280c0e1 | 289 | /**************************************************************************/ |
yihui | 2:f618fb2169c4 | 290 | bool PN532::readPassiveTargetID(uint8_t cardbaudrate, uint8_t *uid, uint8_t *uidLength, uint16_t timeout) |
yihui | 1:b8cab5222fd0 | 291 | { |
yihui | 1:b8cab5222fd0 | 292 | pn532_packetbuffer[0] = PN532_COMMAND_INLISTPASSIVETARGET; |
yihui | 1:b8cab5222fd0 | 293 | pn532_packetbuffer[1] = 1; // max 1 cards at once (we can set this to 2 later) |
yihui | 1:b8cab5222fd0 | 294 | pn532_packetbuffer[2] = cardbaudrate; |
yihui | 1:b8cab5222fd0 | 295 | |
yihui | 1:b8cab5222fd0 | 296 | if (HAL(writeCommand)(pn532_packetbuffer, 3)) { |
yihui | 1:b8cab5222fd0 | 297 | return 0x0; // command failed |
yihui | 1:b8cab5222fd0 | 298 | } |
yihui | 1:b8cab5222fd0 | 299 | |
yihui | 1:b8cab5222fd0 | 300 | // read data packet |
yihui | 2:f618fb2169c4 | 301 | if (HAL(readResponse)(pn532_packetbuffer, sizeof(pn532_packetbuffer), timeout) < 0) { |
yihui | 2:f618fb2169c4 | 302 | return 0x0; |
yihui | 2:f618fb2169c4 | 303 | } |
yihui | 1:b8cab5222fd0 | 304 | |
yihui | 1:b8cab5222fd0 | 305 | // check some basic stuff |
yihui | 1:b8cab5222fd0 | 306 | /* ISO14443A card response should be in the following format: |
yihui | 0:9c6b9280c0e1 | 307 | |
yihui | 1:b8cab5222fd0 | 308 | byte Description |
yihui | 1:b8cab5222fd0 | 309 | ------------- ------------------------------------------ |
yihui | 1:b8cab5222fd0 | 310 | b0 Tags Found |
yihui | 1:b8cab5222fd0 | 311 | b1 Tag Number (only one used in this example) |
yihui | 1:b8cab5222fd0 | 312 | b2..3 SENS_RES |
yihui | 1:b8cab5222fd0 | 313 | b4 SEL_RES |
yihui | 1:b8cab5222fd0 | 314 | b5 NFCID Length |
yihui | 1:b8cab5222fd0 | 315 | b6..NFCIDLen NFCID |
yihui | 1:b8cab5222fd0 | 316 | */ |
yihui | 1:b8cab5222fd0 | 317 | |
yihui | 1:b8cab5222fd0 | 318 | if (pn532_packetbuffer[0] != 1) |
yihui | 1:b8cab5222fd0 | 319 | return 0; |
yihui | 0:9c6b9280c0e1 | 320 | |
yihui | 1:b8cab5222fd0 | 321 | uint16_t sens_res = pn532_packetbuffer[2]; |
yihui | 1:b8cab5222fd0 | 322 | sens_res <<= 8; |
yihui | 1:b8cab5222fd0 | 323 | sens_res |= pn532_packetbuffer[3]; |
yihui | 1:b8cab5222fd0 | 324 | |
yihui | 1:b8cab5222fd0 | 325 | DMSG("ATQA: 0x"); DMSG_HEX(sens_res); |
yihui | 1:b8cab5222fd0 | 326 | DMSG("SAK: 0x"); DMSG_HEX(pn532_packetbuffer[4]); |
yihui | 1:b8cab5222fd0 | 327 | DMSG("\n"); |
yihui | 0:9c6b9280c0e1 | 328 | |
yihui | 1:b8cab5222fd0 | 329 | /* Card appears to be Mifare Classic */ |
yihui | 1:b8cab5222fd0 | 330 | *uidLength = pn532_packetbuffer[5]; |
yihui | 0:9c6b9280c0e1 | 331 | |
yihui | 1:b8cab5222fd0 | 332 | for (uint8_t i = 0; i < pn532_packetbuffer[5]; i++) { |
yihui | 1:b8cab5222fd0 | 333 | uid[i] = pn532_packetbuffer[6 + i]; |
yihui | 1:b8cab5222fd0 | 334 | } |
yihui | 1:b8cab5222fd0 | 335 | |
yihui | 1:b8cab5222fd0 | 336 | return 1; |
yihui | 0:9c6b9280c0e1 | 337 | } |
yihui | 0:9c6b9280c0e1 | 338 | |
yihui | 0:9c6b9280c0e1 | 339 | |
yihui | 0:9c6b9280c0e1 | 340 | /***** Mifare Classic Functions ******/ |
yihui | 0:9c6b9280c0e1 | 341 | |
yihui | 0:9c6b9280c0e1 | 342 | /**************************************************************************/ |
yihui | 1:b8cab5222fd0 | 343 | /*! |
yihui | 0:9c6b9280c0e1 | 344 | Indicates whether the specified block number is the first block |
yihui | 0:9c6b9280c0e1 | 345 | in the sector (block 0 relative to the current sector) |
yihui | 0:9c6b9280c0e1 | 346 | */ |
yihui | 0:9c6b9280c0e1 | 347 | /**************************************************************************/ |
yihui | 0:9c6b9280c0e1 | 348 | bool PN532::mifareclassic_IsFirstBlock (uint32_t uiBlock) |
yihui | 0:9c6b9280c0e1 | 349 | { |
yihui | 1:b8cab5222fd0 | 350 | // Test if we are in the small or big sectors |
yihui | 1:b8cab5222fd0 | 351 | if (uiBlock < 128) |
yihui | 1:b8cab5222fd0 | 352 | return ((uiBlock) % 4 == 0); |
yihui | 1:b8cab5222fd0 | 353 | else |
yihui | 1:b8cab5222fd0 | 354 | return ((uiBlock) % 16 == 0); |
yihui | 0:9c6b9280c0e1 | 355 | } |
yihui | 0:9c6b9280c0e1 | 356 | |
yihui | 0:9c6b9280c0e1 | 357 | /**************************************************************************/ |
yihui | 1:b8cab5222fd0 | 358 | /*! |
yihui | 0:9c6b9280c0e1 | 359 | Indicates whether the specified block number is the sector trailer |
yihui | 0:9c6b9280c0e1 | 360 | */ |
yihui | 0:9c6b9280c0e1 | 361 | /**************************************************************************/ |
yihui | 0:9c6b9280c0e1 | 362 | bool PN532::mifareclassic_IsTrailerBlock (uint32_t uiBlock) |
yihui | 0:9c6b9280c0e1 | 363 | { |
yihui | 1:b8cab5222fd0 | 364 | // Test if we are in the small or big sectors |
yihui | 1:b8cab5222fd0 | 365 | if (uiBlock < 128) |
yihui | 1:b8cab5222fd0 | 366 | return ((uiBlock + 1) % 4 == 0); |
yihui | 1:b8cab5222fd0 | 367 | else |
yihui | 1:b8cab5222fd0 | 368 | return ((uiBlock + 1) % 16 == 0); |
yihui | 0:9c6b9280c0e1 | 369 | } |
yihui | 0:9c6b9280c0e1 | 370 | |
yihui | 0:9c6b9280c0e1 | 371 | /**************************************************************************/ |
yihui | 1:b8cab5222fd0 | 372 | /*! |
yihui | 0:9c6b9280c0e1 | 373 | Tries to authenticate a block of memory on a MIFARE card using the |
yihui | 0:9c6b9280c0e1 | 374 | INDATAEXCHANGE command. See section 7.3.8 of the PN532 User Manual |
yihui | 0:9c6b9280c0e1 | 375 | for more information on sending MIFARE and other commands. |
yihui | 0:9c6b9280c0e1 | 376 | |
yihui | 1:b8cab5222fd0 | 377 | @param uid Pointer to a byte array containing the card UID |
yihui | 0:9c6b9280c0e1 | 378 | @param uidLen The length (in bytes) of the card's UID (Should |
yihui | 0:9c6b9280c0e1 | 379 | be 4 for MIFARE Classic) |
yihui | 0:9c6b9280c0e1 | 380 | @param blockNumber The block number to authenticate. (0..63 for |
yihui | 0:9c6b9280c0e1 | 381 | 1KB cards, and 0..255 for 4KB cards). |
yihui | 0:9c6b9280c0e1 | 382 | @param keyNumber Which key type to use during authentication |
yihui | 0:9c6b9280c0e1 | 383 | (0 = MIFARE_CMD_AUTH_A, 1 = MIFARE_CMD_AUTH_B) |
yihui | 1:b8cab5222fd0 | 384 | @param keyData Pointer to a byte array containing the 6 bytes |
yihui | 0:9c6b9280c0e1 | 385 | key value |
yihui | 1:b8cab5222fd0 | 386 | |
yihui | 0:9c6b9280c0e1 | 387 | @returns 1 if everything executed properly, 0 for an error |
yihui | 0:9c6b9280c0e1 | 388 | */ |
yihui | 0:9c6b9280c0e1 | 389 | /**************************************************************************/ |
yihui | 1:b8cab5222fd0 | 390 | uint8_t PN532::mifareclassic_AuthenticateBlock (uint8_t *uid, uint8_t uidLen, uint32_t blockNumber, uint8_t keyNumber, uint8_t *keyData) |
yihui | 0:9c6b9280c0e1 | 391 | { |
yihui | 1:b8cab5222fd0 | 392 | uint8_t i; |
yihui | 1:b8cab5222fd0 | 393 | |
yihui | 1:b8cab5222fd0 | 394 | // Hang on to the key and uid data |
yihui | 1:b8cab5222fd0 | 395 | memcpy (_key, keyData, 6); |
yihui | 1:b8cab5222fd0 | 396 | memcpy (_uid, uid, uidLen); |
yihui | 1:b8cab5222fd0 | 397 | _uidLen = uidLen; |
yihui | 0:9c6b9280c0e1 | 398 | |
yihui | 1:b8cab5222fd0 | 399 | // Prepare the authentication command // |
yihui | 1:b8cab5222fd0 | 400 | pn532_packetbuffer[0] = PN532_COMMAND_INDATAEXCHANGE; /* Data Exchange Header */ |
yihui | 1:b8cab5222fd0 | 401 | pn532_packetbuffer[1] = 1; /* Max card numbers */ |
yihui | 1:b8cab5222fd0 | 402 | pn532_packetbuffer[2] = (keyNumber) ? MIFARE_CMD_AUTH_B : MIFARE_CMD_AUTH_A; |
yihui | 1:b8cab5222fd0 | 403 | pn532_packetbuffer[3] = blockNumber; /* Block Number (1K = 0..63, 4K = 0..255 */ |
yihui | 1:b8cab5222fd0 | 404 | memcpy (pn532_packetbuffer + 4, _key, 6); |
yihui | 1:b8cab5222fd0 | 405 | for (i = 0; i < _uidLen; i++) { |
yihui | 1:b8cab5222fd0 | 406 | pn532_packetbuffer[10 + i] = _uid[i]; /* 4 bytes card ID */ |
yihui | 1:b8cab5222fd0 | 407 | } |
yihui | 1:b8cab5222fd0 | 408 | |
yihui | 1:b8cab5222fd0 | 409 | if (HAL(writeCommand)(pn532_packetbuffer, 10 + _uidLen)) |
yihui | 1:b8cab5222fd0 | 410 | return 0; |
yihui | 0:9c6b9280c0e1 | 411 | |
yihui | 1:b8cab5222fd0 | 412 | // Read the response packet |
yihui | 1:b8cab5222fd0 | 413 | HAL(readResponse)(pn532_packetbuffer, sizeof(pn532_packetbuffer)); |
yihui | 0:9c6b9280c0e1 | 414 | |
yihui | 1:b8cab5222fd0 | 415 | // Check if the response is valid and we are authenticated??? |
yihui | 1:b8cab5222fd0 | 416 | // for an auth success it should be bytes 5-7: 0xD5 0x41 0x00 |
yihui | 1:b8cab5222fd0 | 417 | // Mifare auth error is technically byte 7: 0x14 but anything other and 0x00 is not good |
yihui | 1:b8cab5222fd0 | 418 | if (pn532_packetbuffer[0] != 0x00) { |
yihui | 1:b8cab5222fd0 | 419 | DMSG("Authentification failed\n"); |
yihui | 1:b8cab5222fd0 | 420 | return 0; |
yihui | 1:b8cab5222fd0 | 421 | } |
yihui | 1:b8cab5222fd0 | 422 | |
yihui | 1:b8cab5222fd0 | 423 | return 1; |
yihui | 0:9c6b9280c0e1 | 424 | } |
yihui | 0:9c6b9280c0e1 | 425 | |
yihui | 0:9c6b9280c0e1 | 426 | /**************************************************************************/ |
yihui | 1:b8cab5222fd0 | 427 | /*! |
yihui | 1:b8cab5222fd0 | 428 | Tries to read an entire 16-bytes data block at the specified block |
yihui | 0:9c6b9280c0e1 | 429 | address. |
yihui | 0:9c6b9280c0e1 | 430 | |
yihui | 0:9c6b9280c0e1 | 431 | @param blockNumber The block number to authenticate. (0..63 for |
yihui | 0:9c6b9280c0e1 | 432 | 1KB cards, and 0..255 for 4KB cards). |
yihui | 1:b8cab5222fd0 | 433 | @param data Pointer to the byte array that will hold the |
yihui | 0:9c6b9280c0e1 | 434 | retrieved data (if any) |
yihui | 1:b8cab5222fd0 | 435 | |
yihui | 0:9c6b9280c0e1 | 436 | @returns 1 if everything executed properly, 0 for an error |
yihui | 0:9c6b9280c0e1 | 437 | */ |
yihui | 0:9c6b9280c0e1 | 438 | /**************************************************************************/ |
yihui | 1:b8cab5222fd0 | 439 | uint8_t PN532::mifareclassic_ReadDataBlock (uint8_t blockNumber, uint8_t *data) |
yihui | 0:9c6b9280c0e1 | 440 | { |
yihui | 1:b8cab5222fd0 | 441 | DMSG("Trying to read 16 bytes from block "); |
yihui | 1:b8cab5222fd0 | 442 | DMSG_INT(blockNumber); |
yihui | 1:b8cab5222fd0 | 443 | |
yihui | 1:b8cab5222fd0 | 444 | /* Prepare the command */ |
yihui | 1:b8cab5222fd0 | 445 | pn532_packetbuffer[0] = PN532_COMMAND_INDATAEXCHANGE; |
yihui | 1:b8cab5222fd0 | 446 | pn532_packetbuffer[1] = 1; /* Card number */ |
yihui | 1:b8cab5222fd0 | 447 | pn532_packetbuffer[2] = MIFARE_CMD_READ; /* Mifare Read command = 0x30 */ |
yihui | 1:b8cab5222fd0 | 448 | pn532_packetbuffer[3] = blockNumber; /* Block Number (0..63 for 1K, 0..255 for 4K) */ |
yihui | 0:9c6b9280c0e1 | 449 | |
yihui | 1:b8cab5222fd0 | 450 | /* Send the command */ |
yihui | 1:b8cab5222fd0 | 451 | if (HAL(writeCommand)(pn532_packetbuffer, 4)) { |
yihui | 1:b8cab5222fd0 | 452 | return 0; |
yihui | 1:b8cab5222fd0 | 453 | } |
yihui | 0:9c6b9280c0e1 | 454 | |
yihui | 1:b8cab5222fd0 | 455 | /* Read the response packet */ |
yihui | 1:b8cab5222fd0 | 456 | HAL(readResponse)(pn532_packetbuffer, sizeof(pn532_packetbuffer)); |
yihui | 0:9c6b9280c0e1 | 457 | |
yihui | 1:b8cab5222fd0 | 458 | /* If byte 8 isn't 0x00 we probably have an error */ |
yihui | 1:b8cab5222fd0 | 459 | if (pn532_packetbuffer[0] != 0x00) { |
yihui | 1:b8cab5222fd0 | 460 | return 0; |
yihui | 1:b8cab5222fd0 | 461 | } |
yihui | 0:9c6b9280c0e1 | 462 | |
yihui | 1:b8cab5222fd0 | 463 | /* Copy the 16 data bytes to the output buffer */ |
yihui | 1:b8cab5222fd0 | 464 | /* Block content starts at byte 9 of a valid response */ |
yihui | 1:b8cab5222fd0 | 465 | memcpy (data, pn532_packetbuffer + 1, 16); |
yihui | 1:b8cab5222fd0 | 466 | |
yihui | 1:b8cab5222fd0 | 467 | return 1; |
yihui | 0:9c6b9280c0e1 | 468 | } |
yihui | 0:9c6b9280c0e1 | 469 | |
yihui | 0:9c6b9280c0e1 | 470 | /**************************************************************************/ |
yihui | 1:b8cab5222fd0 | 471 | /*! |
yihui | 1:b8cab5222fd0 | 472 | Tries to write an entire 16-bytes data block at the specified block |
yihui | 0:9c6b9280c0e1 | 473 | address. |
yihui | 0:9c6b9280c0e1 | 474 | |
yihui | 0:9c6b9280c0e1 | 475 | @param blockNumber The block number to authenticate. (0..63 for |
yihui | 0:9c6b9280c0e1 | 476 | 1KB cards, and 0..255 for 4KB cards). |
yihui | 1:b8cab5222fd0 | 477 | @param data The byte array that contains the data to write. |
yihui | 1:b8cab5222fd0 | 478 | |
yihui | 0:9c6b9280c0e1 | 479 | @returns 1 if everything executed properly, 0 for an error |
yihui | 0:9c6b9280c0e1 | 480 | */ |
yihui | 0:9c6b9280c0e1 | 481 | /**************************************************************************/ |
yihui | 1:b8cab5222fd0 | 482 | uint8_t PN532::mifareclassic_WriteDataBlock (uint8_t blockNumber, uint8_t *data) |
yihui | 0:9c6b9280c0e1 | 483 | { |
yihui | 1:b8cab5222fd0 | 484 | /* Prepare the first command */ |
yihui | 1:b8cab5222fd0 | 485 | pn532_packetbuffer[0] = PN532_COMMAND_INDATAEXCHANGE; |
yihui | 1:b8cab5222fd0 | 486 | pn532_packetbuffer[1] = 1; /* Card number */ |
yihui | 1:b8cab5222fd0 | 487 | pn532_packetbuffer[2] = MIFARE_CMD_WRITE; /* Mifare Write command = 0xA0 */ |
yihui | 1:b8cab5222fd0 | 488 | pn532_packetbuffer[3] = blockNumber; /* Block Number (0..63 for 1K, 0..255 for 4K) */ |
yihui | 1:b8cab5222fd0 | 489 | memcpy (pn532_packetbuffer + 4, data, 16); /* Data Payload */ |
yihui | 0:9c6b9280c0e1 | 490 | |
yihui | 1:b8cab5222fd0 | 491 | /* Send the command */ |
yihui | 1:b8cab5222fd0 | 492 | if (HAL(writeCommand)(pn532_packetbuffer, 20)) { |
yihui | 1:b8cab5222fd0 | 493 | return 0; |
yihui | 1:b8cab5222fd0 | 494 | } |
yihui | 1:b8cab5222fd0 | 495 | |
yihui | 1:b8cab5222fd0 | 496 | /* Read the response packet */ |
yihui | 1:b8cab5222fd0 | 497 | return (0 < HAL(readResponse)(pn532_packetbuffer, sizeof(pn532_packetbuffer))); |
yihui | 0:9c6b9280c0e1 | 498 | } |
yihui | 0:9c6b9280c0e1 | 499 | |
yihui | 0:9c6b9280c0e1 | 500 | /**************************************************************************/ |
yihui | 1:b8cab5222fd0 | 501 | /*! |
yihui | 1:b8cab5222fd0 | 502 | Formats a Mifare Classic card to store NDEF Records |
yihui | 1:b8cab5222fd0 | 503 | |
yihui | 0:9c6b9280c0e1 | 504 | @returns 1 if everything executed properly, 0 for an error |
yihui | 0:9c6b9280c0e1 | 505 | */ |
yihui | 0:9c6b9280c0e1 | 506 | /**************************************************************************/ |
yihui | 0:9c6b9280c0e1 | 507 | uint8_t PN532::mifareclassic_FormatNDEF (void) |
yihui | 0:9c6b9280c0e1 | 508 | { |
yihui | 1:b8cab5222fd0 | 509 | uint8_t sectorbuffer1[16] = {0x14, 0x01, 0x03, 0xE1, 0x03, 0xE1, 0x03, 0xE1, 0x03, 0xE1, 0x03, 0xE1, 0x03, 0xE1, 0x03, 0xE1}; |
yihui | 1:b8cab5222fd0 | 510 | uint8_t sectorbuffer2[16] = {0x03, 0xE1, 0x03, 0xE1, 0x03, 0xE1, 0x03, 0xE1, 0x03, 0xE1, 0x03, 0xE1, 0x03, 0xE1, 0x03, 0xE1}; |
yihui | 1:b8cab5222fd0 | 511 | uint8_t sectorbuffer3[16] = {0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0x78, 0x77, 0x88, 0xC1, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; |
yihui | 1:b8cab5222fd0 | 512 | |
yihui | 1:b8cab5222fd0 | 513 | // Note 0xA0 0xA1 0xA2 0xA3 0xA4 0xA5 must be used for key A |
yihui | 1:b8cab5222fd0 | 514 | // for the MAD sector in NDEF records (sector 0) |
yihui | 0:9c6b9280c0e1 | 515 | |
yihui | 1:b8cab5222fd0 | 516 | // Write block 1 and 2 to the card |
yihui | 1:b8cab5222fd0 | 517 | if (!(mifareclassic_WriteDataBlock (1, sectorbuffer1))) |
yihui | 1:b8cab5222fd0 | 518 | return 0; |
yihui | 1:b8cab5222fd0 | 519 | if (!(mifareclassic_WriteDataBlock (2, sectorbuffer2))) |
yihui | 1:b8cab5222fd0 | 520 | return 0; |
yihui | 1:b8cab5222fd0 | 521 | // Write key A and access rights card |
yihui | 1:b8cab5222fd0 | 522 | if (!(mifareclassic_WriteDataBlock (3, sectorbuffer3))) |
yihui | 1:b8cab5222fd0 | 523 | return 0; |
yihui | 0:9c6b9280c0e1 | 524 | |
yihui | 1:b8cab5222fd0 | 525 | // Seems that everything was OK (?!) |
yihui | 1:b8cab5222fd0 | 526 | return 1; |
yihui | 0:9c6b9280c0e1 | 527 | } |
yihui | 0:9c6b9280c0e1 | 528 | |
yihui | 0:9c6b9280c0e1 | 529 | /**************************************************************************/ |
yihui | 1:b8cab5222fd0 | 530 | /*! |
yihui | 0:9c6b9280c0e1 | 531 | Writes an NDEF URI Record to the specified sector (1..15) |
yihui | 1:b8cab5222fd0 | 532 | |
yihui | 0:9c6b9280c0e1 | 533 | Note that this function assumes that the Mifare Classic card is |
yihui | 0:9c6b9280c0e1 | 534 | already formatted to work as an "NFC Forum Tag" and uses a MAD1 |
yihui | 0:9c6b9280c0e1 | 535 | file system. You can use the NXP TagWriter app on Android to |
yihui | 0:9c6b9280c0e1 | 536 | properly format cards for this. |
yihui | 0:9c6b9280c0e1 | 537 | |
yihui | 0:9c6b9280c0e1 | 538 | @param sectorNumber The sector that the URI record should be written |
yihui | 0:9c6b9280c0e1 | 539 | to (can be 1..15 for a 1K card) |
yihui | 1:b8cab5222fd0 | 540 | @param uriIdentifier The uri identifier code (0 = none, 0x01 = |
yihui | 0:9c6b9280c0e1 | 541 | "http://www.", etc.) |
yihui | 0:9c6b9280c0e1 | 542 | @param url The uri text to write (max 38 characters). |
yihui | 1:b8cab5222fd0 | 543 | |
yihui | 0:9c6b9280c0e1 | 544 | @returns 1 if everything executed properly, 0 for an error |
yihui | 0:9c6b9280c0e1 | 545 | */ |
yihui | 0:9c6b9280c0e1 | 546 | /**************************************************************************/ |
yihui | 1:b8cab5222fd0 | 547 | uint8_t PN532::mifareclassic_WriteNDEFURI (uint8_t sectorNumber, uint8_t uriIdentifier, const char *url) |
yihui | 0:9c6b9280c0e1 | 548 | { |
yihui | 1:b8cab5222fd0 | 549 | // Figure out how long the string is |
yihui | 1:b8cab5222fd0 | 550 | uint8_t len = strlen(url); |
yihui | 1:b8cab5222fd0 | 551 | |
yihui | 1:b8cab5222fd0 | 552 | // Make sure we're within a 1K limit for the sector number |
yihui | 1:b8cab5222fd0 | 553 | if ((sectorNumber < 1) || (sectorNumber > 15)) |
yihui | 1:b8cab5222fd0 | 554 | return 0; |
yihui | 1:b8cab5222fd0 | 555 | |
yihui | 1:b8cab5222fd0 | 556 | // Make sure the URI payload is between 1 and 38 chars |
yihui | 1:b8cab5222fd0 | 557 | if ((len < 1) || (len > 38)) |
yihui | 1:b8cab5222fd0 | 558 | return 0; |
yihui | 1:b8cab5222fd0 | 559 | |
yihui | 1:b8cab5222fd0 | 560 | // Note 0xD3 0xF7 0xD3 0xF7 0xD3 0xF7 must be used for key A |
yihui | 1:b8cab5222fd0 | 561 | // in NDEF records |
yihui | 0:9c6b9280c0e1 | 562 | |
yihui | 1:b8cab5222fd0 | 563 | // Setup the sector buffer (w/pre-formatted TLV wrapper and NDEF message) |
yihui | 1:b8cab5222fd0 | 564 | uint8_t sectorbuffer1[16] = {0x00, 0x00, 0x03, len + 5, 0xD1, 0x01, len + 1, 0x55, uriIdentifier, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; |
yihui | 1:b8cab5222fd0 | 565 | uint8_t sectorbuffer2[16] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; |
yihui | 1:b8cab5222fd0 | 566 | uint8_t sectorbuffer3[16] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; |
yihui | 1:b8cab5222fd0 | 567 | uint8_t sectorbuffer4[16] = {0xD3, 0xF7, 0xD3, 0xF7, 0xD3, 0xF7, 0x7F, 0x07, 0x88, 0x40, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; |
yihui | 1:b8cab5222fd0 | 568 | if (len <= 6) { |
yihui | 1:b8cab5222fd0 | 569 | // Unlikely we'll get a url this short, but why not ... |
yihui | 1:b8cab5222fd0 | 570 | memcpy (sectorbuffer1 + 9, url, len); |
yihui | 1:b8cab5222fd0 | 571 | sectorbuffer1[len + 9] = 0xFE; |
yihui | 1:b8cab5222fd0 | 572 | } else if (len == 7) { |
yihui | 1:b8cab5222fd0 | 573 | // 0xFE needs to be wrapped around to next block |
yihui | 1:b8cab5222fd0 | 574 | memcpy (sectorbuffer1 + 9, url, len); |
yihui | 1:b8cab5222fd0 | 575 | sectorbuffer2[0] = 0xFE; |
yihui | 1:b8cab5222fd0 | 576 | } else if ((len > 7) || (len <= 22)) { |
yihui | 1:b8cab5222fd0 | 577 | // Url fits in two blocks |
yihui | 1:b8cab5222fd0 | 578 | memcpy (sectorbuffer1 + 9, url, 7); |
yihui | 1:b8cab5222fd0 | 579 | memcpy (sectorbuffer2, url + 7, len - 7); |
yihui | 1:b8cab5222fd0 | 580 | sectorbuffer2[len - 7] = 0xFE; |
yihui | 1:b8cab5222fd0 | 581 | } else if (len == 23) { |
yihui | 1:b8cab5222fd0 | 582 | // 0xFE needs to be wrapped around to final block |
yihui | 1:b8cab5222fd0 | 583 | memcpy (sectorbuffer1 + 9, url, 7); |
yihui | 1:b8cab5222fd0 | 584 | memcpy (sectorbuffer2, url + 7, len - 7); |
yihui | 1:b8cab5222fd0 | 585 | sectorbuffer3[0] = 0xFE; |
yihui | 1:b8cab5222fd0 | 586 | } else { |
yihui | 1:b8cab5222fd0 | 587 | // Url fits in three blocks |
yihui | 1:b8cab5222fd0 | 588 | memcpy (sectorbuffer1 + 9, url, 7); |
yihui | 1:b8cab5222fd0 | 589 | memcpy (sectorbuffer2, url + 7, 16); |
yihui | 1:b8cab5222fd0 | 590 | memcpy (sectorbuffer3, url + 23, len - 24); |
yihui | 1:b8cab5222fd0 | 591 | sectorbuffer3[len - 22] = 0xFE; |
yihui | 1:b8cab5222fd0 | 592 | } |
yihui | 1:b8cab5222fd0 | 593 | |
yihui | 1:b8cab5222fd0 | 594 | // Now write all three blocks back to the card |
yihui | 1:b8cab5222fd0 | 595 | if (!(mifareclassic_WriteDataBlock (sectorNumber * 4, sectorbuffer1))) |
yihui | 1:b8cab5222fd0 | 596 | return 0; |
yihui | 1:b8cab5222fd0 | 597 | if (!(mifareclassic_WriteDataBlock ((sectorNumber * 4) + 1, sectorbuffer2))) |
yihui | 1:b8cab5222fd0 | 598 | return 0; |
yihui | 1:b8cab5222fd0 | 599 | if (!(mifareclassic_WriteDataBlock ((sectorNumber * 4) + 2, sectorbuffer3))) |
yihui | 1:b8cab5222fd0 | 600 | return 0; |
yihui | 1:b8cab5222fd0 | 601 | if (!(mifareclassic_WriteDataBlock ((sectorNumber * 4) + 3, sectorbuffer4))) |
yihui | 1:b8cab5222fd0 | 602 | return 0; |
yihui | 1:b8cab5222fd0 | 603 | |
yihui | 1:b8cab5222fd0 | 604 | // Seems that everything was OK (?!) |
yihui | 1:b8cab5222fd0 | 605 | return 1; |
yihui | 0:9c6b9280c0e1 | 606 | } |
yihui | 0:9c6b9280c0e1 | 607 | |
yihui | 0:9c6b9280c0e1 | 608 | /***** Mifare Ultralight Functions ******/ |
yihui | 0:9c6b9280c0e1 | 609 | |
yihui | 0:9c6b9280c0e1 | 610 | /**************************************************************************/ |
yihui | 1:b8cab5222fd0 | 611 | /*! |
yihui | 1:b8cab5222fd0 | 612 | Tries to read an entire 4-bytes page at the specified address. |
yihui | 0:9c6b9280c0e1 | 613 | |
yihui | 0:9c6b9280c0e1 | 614 | @param page The page number (0..63 in most cases) |
yihui | 1:b8cab5222fd0 | 615 | @param buffer Pointer to the byte array that will hold the |
yihui | 0:9c6b9280c0e1 | 616 | retrieved data (if any) |
yihui | 0:9c6b9280c0e1 | 617 | */ |
yihui | 0:9c6b9280c0e1 | 618 | /**************************************************************************/ |
yihui | 1:b8cab5222fd0 | 619 | uint8_t PN532::mifareultralight_ReadPage (uint8_t page, uint8_t *buffer) |
yihui | 0:9c6b9280c0e1 | 620 | { |
yihui | 1:b8cab5222fd0 | 621 | if (page >= 64) { |
yihui | 1:b8cab5222fd0 | 622 | DMSG("Page value out of range\n"); |
yihui | 1:b8cab5222fd0 | 623 | return 0; |
yihui | 1:b8cab5222fd0 | 624 | } |
yihui | 0:9c6b9280c0e1 | 625 | |
yihui | 1:b8cab5222fd0 | 626 | /* Prepare the command */ |
yihui | 1:b8cab5222fd0 | 627 | pn532_packetbuffer[0] = PN532_COMMAND_INDATAEXCHANGE; |
yihui | 1:b8cab5222fd0 | 628 | pn532_packetbuffer[1] = 1; /* Card number */ |
yihui | 1:b8cab5222fd0 | 629 | pn532_packetbuffer[2] = MIFARE_CMD_READ; /* Mifare Read command = 0x30 */ |
yihui | 1:b8cab5222fd0 | 630 | pn532_packetbuffer[3] = page; /* Page Number (0..63 in most cases) */ |
yihui | 1:b8cab5222fd0 | 631 | |
yihui | 1:b8cab5222fd0 | 632 | /* Send the command */ |
yihui | 1:b8cab5222fd0 | 633 | if (HAL(writeCommand)(pn532_packetbuffer, 4)) { |
yihui | 1:b8cab5222fd0 | 634 | return 0; |
yihui | 1:b8cab5222fd0 | 635 | } |
yihui | 0:9c6b9280c0e1 | 636 | |
yihui | 1:b8cab5222fd0 | 637 | /* Read the response packet */ |
yihui | 1:b8cab5222fd0 | 638 | HAL(readResponse)(pn532_packetbuffer, sizeof(pn532_packetbuffer)); |
yihui | 0:9c6b9280c0e1 | 639 | |
yihui | 1:b8cab5222fd0 | 640 | /* If byte 8 isn't 0x00 we probably have an error */ |
yihui | 1:b8cab5222fd0 | 641 | if (pn532_packetbuffer[0] == 0x00) { |
yihui | 1:b8cab5222fd0 | 642 | /* Copy the 4 data bytes to the output buffer */ |
yihui | 1:b8cab5222fd0 | 643 | /* Block content starts at byte 9 of a valid response */ |
yihui | 1:b8cab5222fd0 | 644 | /* Note that the command actually reads 16 bytes or 4 */ |
yihui | 1:b8cab5222fd0 | 645 | /* pages at a time ... we simply discard the last 12 */ |
yihui | 1:b8cab5222fd0 | 646 | /* bytes */ |
yihui | 1:b8cab5222fd0 | 647 | memcpy (buffer, pn532_packetbuffer + 1, 4); |
yihui | 1:b8cab5222fd0 | 648 | } else { |
yihui | 1:b8cab5222fd0 | 649 | return 0; |
yihui | 1:b8cab5222fd0 | 650 | } |
yihui | 0:9c6b9280c0e1 | 651 | |
yihui | 1:b8cab5222fd0 | 652 | // Return OK signal |
yihui | 1:b8cab5222fd0 | 653 | return 1; |
yihui | 0:9c6b9280c0e1 | 654 | } |
yihui | 0:9c6b9280c0e1 | 655 | |
yihui | 0:9c6b9280c0e1 | 656 | /**************************************************************************/ |
yihui | 1:b8cab5222fd0 | 657 | /*! |
yihui | 0:9c6b9280c0e1 | 658 | @brief Exchanges an APDU with the currently inlisted peer |
yihui | 0:9c6b9280c0e1 | 659 | |
yihui | 0:9c6b9280c0e1 | 660 | @param send Pointer to data to send |
yihui | 0:9c6b9280c0e1 | 661 | @param sendLength Length of the data to send |
yihui | 0:9c6b9280c0e1 | 662 | @param response Pointer to response data |
yihui | 0:9c6b9280c0e1 | 663 | @param responseLength Pointer to the response data length |
yihui | 0:9c6b9280c0e1 | 664 | */ |
yihui | 0:9c6b9280c0e1 | 665 | /**************************************************************************/ |
yihui | 1:b8cab5222fd0 | 666 | bool PN532::inDataExchange(uint8_t *send, uint8_t sendLength, uint8_t *response, uint8_t *responseLength) |
yihui | 1:b8cab5222fd0 | 667 | { |
yihui | 1:b8cab5222fd0 | 668 | uint8_t i; |
yihui | 0:9c6b9280c0e1 | 669 | |
yihui | 1:b8cab5222fd0 | 670 | pn532_packetbuffer[0] = 0x40; // PN532_COMMAND_INDATAEXCHANGE; |
yihui | 1:b8cab5222fd0 | 671 | pn532_packetbuffer[1] = inListedTag; |
yihui | 1:b8cab5222fd0 | 672 | |
yihui | 3:4189a10038e6 | 673 | if (HAL(writeCommand)(pn532_packetbuffer, 2, send, sendLength)) { |
yihui | 1:b8cab5222fd0 | 674 | return false; |
yihui | 1:b8cab5222fd0 | 675 | } |
yihui | 0:9c6b9280c0e1 | 676 | |
yihui | 3:4189a10038e6 | 677 | int16_t status = HAL(readResponse)(response, *responseLength, 1000); |
yihui | 1:b8cab5222fd0 | 678 | if (status < 0) { |
yihui | 1:b8cab5222fd0 | 679 | return false; |
yihui | 1:b8cab5222fd0 | 680 | } |
yihui | 1:b8cab5222fd0 | 681 | |
yihui | 3:4189a10038e6 | 682 | if ((response[0] & 0x3f) != 0) { |
yihui | 1:b8cab5222fd0 | 683 | DMSG("Status code indicates an error\n"); |
yihui | 1:b8cab5222fd0 | 684 | return false; |
yihui | 1:b8cab5222fd0 | 685 | } |
yihui | 0:9c6b9280c0e1 | 686 | |
yihui | 3:4189a10038e6 | 687 | uint8_t length = status; |
yihui | 1:b8cab5222fd0 | 688 | length -= 1; |
yihui | 1:b8cab5222fd0 | 689 | |
yihui | 1:b8cab5222fd0 | 690 | if (length > *responseLength) { |
yihui | 1:b8cab5222fd0 | 691 | length = *responseLength; // silent truncation... |
yihui | 1:b8cab5222fd0 | 692 | } |
yihui | 1:b8cab5222fd0 | 693 | |
yihui | 3:4189a10038e6 | 694 | for (uint8_t i = 0; i < length; i++) { |
yihui | 3:4189a10038e6 | 695 | response[i] = response[i + 1]; |
yihui | 1:b8cab5222fd0 | 696 | } |
yihui | 1:b8cab5222fd0 | 697 | *responseLength = length; |
yihui | 1:b8cab5222fd0 | 698 | |
yihui | 1:b8cab5222fd0 | 699 | return true; |
yihui | 0:9c6b9280c0e1 | 700 | } |
yihui | 0:9c6b9280c0e1 | 701 | |
yihui | 0:9c6b9280c0e1 | 702 | /**************************************************************************/ |
yihui | 1:b8cab5222fd0 | 703 | /*! |
yihui | 0:9c6b9280c0e1 | 704 | @brief 'InLists' a passive target. PN532 acting as reader/initiator, |
yihui | 0:9c6b9280c0e1 | 705 | peer acting as card/responder. |
yihui | 0:9c6b9280c0e1 | 706 | */ |
yihui | 0:9c6b9280c0e1 | 707 | /**************************************************************************/ |
yihui | 1:b8cab5222fd0 | 708 | bool PN532::inListPassiveTarget() |
yihui | 1:b8cab5222fd0 | 709 | { |
yihui | 1:b8cab5222fd0 | 710 | pn532_packetbuffer[0] = PN532_COMMAND_INLISTPASSIVETARGET; |
yihui | 1:b8cab5222fd0 | 711 | pn532_packetbuffer[1] = 1; |
yihui | 1:b8cab5222fd0 | 712 | pn532_packetbuffer[2] = 0; |
yihui | 0:9c6b9280c0e1 | 713 | |
yihui | 1:b8cab5222fd0 | 714 | DMSG("inList passive target\n"); |
yihui | 1:b8cab5222fd0 | 715 | |
yihui | 1:b8cab5222fd0 | 716 | if (HAL(writeCommand)(pn532_packetbuffer, 3)) { |
yihui | 1:b8cab5222fd0 | 717 | return false; |
yihui | 1:b8cab5222fd0 | 718 | } |
yihui | 0:9c6b9280c0e1 | 719 | |
yihui | 1:b8cab5222fd0 | 720 | int16_t status = HAL(readResponse)(pn532_packetbuffer, sizeof(pn532_packetbuffer), 30000); |
yihui | 1:b8cab5222fd0 | 721 | if (status < 0) { |
yihui | 1:b8cab5222fd0 | 722 | return false; |
yihui | 1:b8cab5222fd0 | 723 | } |
yihui | 0:9c6b9280c0e1 | 724 | |
yihui | 1:b8cab5222fd0 | 725 | if (pn532_packetbuffer[0] != 1) { |
yihui | 1:b8cab5222fd0 | 726 | return false; |
yihui | 1:b8cab5222fd0 | 727 | } |
yihui | 1:b8cab5222fd0 | 728 | |
yihui | 1:b8cab5222fd0 | 729 | inListedTag = pn532_packetbuffer[1]; |
yihui | 1:b8cab5222fd0 | 730 | |
yihui | 1:b8cab5222fd0 | 731 | return true; |
yihui | 0:9c6b9280c0e1 | 732 | } |
yihui | 0:9c6b9280c0e1 | 733 | |
yihui | 3:4189a10038e6 | 734 | int8_t PN532::tgInitAsTarget(const uint8_t* command, const uint8_t len, const uint16_t timeout){ |
yihui | 3:4189a10038e6 | 735 | |
yihui | 3:4189a10038e6 | 736 | int8_t status = HAL(writeCommand)(command, len); |
yihui | 3:4189a10038e6 | 737 | if (status < 0) { |
yihui | 3:4189a10038e6 | 738 | return -1; |
yihui | 3:4189a10038e6 | 739 | } |
yihui | 3:4189a10038e6 | 740 | |
yihui | 3:4189a10038e6 | 741 | status = HAL(readResponse)(pn532_packetbuffer, sizeof(pn532_packetbuffer), timeout); |
yihui | 3:4189a10038e6 | 742 | if (status > 0) { |
yihui | 3:4189a10038e6 | 743 | return 1; |
yihui | 3:4189a10038e6 | 744 | } else if (PN532_TIMEOUT == status) { |
yihui | 3:4189a10038e6 | 745 | return 0; |
yihui | 3:4189a10038e6 | 746 | } else { |
yihui | 3:4189a10038e6 | 747 | return -2; |
yihui | 3:4189a10038e6 | 748 | } |
yihui | 3:4189a10038e6 | 749 | } |
yihui | 3:4189a10038e6 | 750 | |
yihui | 0:9c6b9280c0e1 | 751 | /** |
yihui | 0:9c6b9280c0e1 | 752 | * Peer to Peer |
yihui | 0:9c6b9280c0e1 | 753 | */ |
yihui | 3:4189a10038e6 | 754 | int8_t PN532::tgInitAsTarget(uint16_t timeout) |
yihui | 0:9c6b9280c0e1 | 755 | { |
yihui | 3:4189a10038e6 | 756 | const uint8_t command[] = { |
yihui | 1:b8cab5222fd0 | 757 | PN532_COMMAND_TGINITASTARGET, |
yihui | 1:b8cab5222fd0 | 758 | 0, |
yihui | 1:b8cab5222fd0 | 759 | 0x00, 0x00, //SENS_RES |
yihui | 1:b8cab5222fd0 | 760 | 0x00, 0x00, 0x00, //NFCID1 |
yihui | 1:b8cab5222fd0 | 761 | 0x40, //SEL_RES |
yihui | 0:9c6b9280c0e1 | 762 | |
yihui | 1:b8cab5222fd0 | 763 | 0x01, 0xFE, 0x0F, 0xBB, 0xBA, 0xA6, 0xC9, 0x89, // POL_RES |
yihui | 1:b8cab5222fd0 | 764 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
yihui | 1:b8cab5222fd0 | 765 | 0xFF, 0xFF, |
yihui | 0:9c6b9280c0e1 | 766 | |
yihui | 1:b8cab5222fd0 | 767 | 0x01, 0xFE, 0x0F, 0xBB, 0xBA, 0xA6, 0xC9, 0x89, 0x00, 0x00, //NFCID3t: Change this to desired value |
yihui | 0:9c6b9280c0e1 | 768 | |
yihui | 1:b8cab5222fd0 | 769 | 0x06, 0x46, 0x66, 0x6D, 0x01, 0x01, 0x10, 0x00// LLCP magic number and version parameter |
yihui | 1:b8cab5222fd0 | 770 | }; |
yihui | 3:4189a10038e6 | 771 | return tgInitAsTarget(command, sizeof(command), timeout); |
yihui | 3:4189a10038e6 | 772 | } |
yihui | 1:b8cab5222fd0 | 773 | |
yihui | 3:4189a10038e6 | 774 | int16_t PN532::tgGetData(uint8_t *buf, uint8_t len) |
yihui | 3:4189a10038e6 | 775 | { |
yihui | 3:4189a10038e6 | 776 | buf[0] = PN532_COMMAND_TGGETDATA; |
yihui | 3:4189a10038e6 | 777 | |
yihui | 3:4189a10038e6 | 778 | if (HAL(writeCommand)(buf, 1)) { |
yihui | 3:4189a10038e6 | 779 | return -1; |
yihui | 3:4189a10038e6 | 780 | } |
yihui | 3:4189a10038e6 | 781 | |
yihui | 3:4189a10038e6 | 782 | int16_t status = HAL(readResponse)(buf, len, 3000); |
yihui | 3:4189a10038e6 | 783 | if (0 >= status) { |
yihui | 0:9c6b9280c0e1 | 784 | return status; |
yihui | 0:9c6b9280c0e1 | 785 | } |
yihui | 1:b8cab5222fd0 | 786 | |
yihui | 3:4189a10038e6 | 787 | uint16_t length = status - 1; |
yihui | 1:b8cab5222fd0 | 788 | |
yihui | 1:b8cab5222fd0 | 789 | |
yihui | 3:4189a10038e6 | 790 | if (buf[0] != 0) { |
yihui | 0:9c6b9280c0e1 | 791 | DMSG("status is not ok\n"); |
yihui | 0:9c6b9280c0e1 | 792 | return -5; |
yihui | 0:9c6b9280c0e1 | 793 | } |
yihui | 1:b8cab5222fd0 | 794 | |
yihui | 3:4189a10038e6 | 795 | for (uint8_t i = 0; i < length; i++) { |
yihui | 3:4189a10038e6 | 796 | buf[i] = buf[i + 1]; |
yihui | 3:4189a10038e6 | 797 | } |
yihui | 0:9c6b9280c0e1 | 798 | |
yihui | 3:4189a10038e6 | 799 | return length; |
yihui | 0:9c6b9280c0e1 | 800 | } |
yihui | 0:9c6b9280c0e1 | 801 | |
yihui | 3:4189a10038e6 | 802 | bool PN532::tgSetData(const uint8_t *header, uint8_t hlen, const uint8_t *body, uint8_t blen) |
yihui | 0:9c6b9280c0e1 | 803 | { |
yihui | 3:4189a10038e6 | 804 | if (hlen > (sizeof(pn532_packetbuffer) - 1)) { |
yihui | 0:9c6b9280c0e1 | 805 | return false; |
yihui | 0:9c6b9280c0e1 | 806 | } |
yihui | 1:b8cab5222fd0 | 807 | |
yihui | 3:4189a10038e6 | 808 | for (int8_t i = hlen - 1; i >= 0; i--){ |
yihui | 3:4189a10038e6 | 809 | pn532_packetbuffer[i + 1] = header[i]; |
yihui | 3:4189a10038e6 | 810 | } |
yihui | 3:4189a10038e6 | 811 | pn532_packetbuffer[0] = PN532_COMMAND_TGSETDATA; |
yihui | 1:b8cab5222fd0 | 812 | |
yihui | 3:4189a10038e6 | 813 | if (HAL(writeCommand)(pn532_packetbuffer, hlen + 1, body, blen)) { |
yihui | 0:9c6b9280c0e1 | 814 | return false; |
yihui | 0:9c6b9280c0e1 | 815 | } |
yihui | 1:b8cab5222fd0 | 816 | |
yihui | 0:9c6b9280c0e1 | 817 | if (0 > HAL(readResponse)(pn532_packetbuffer, sizeof(pn532_packetbuffer), 3000)) { |
yihui | 0:9c6b9280c0e1 | 818 | return false; |
yihui | 0:9c6b9280c0e1 | 819 | } |
yihui | 1:b8cab5222fd0 | 820 | |
yihui | 0:9c6b9280c0e1 | 821 | if (0 != pn532_packetbuffer[0]) { |
yihui | 0:9c6b9280c0e1 | 822 | return false; |
yihui | 0:9c6b9280c0e1 | 823 | } |
yihui | 1:b8cab5222fd0 | 824 | |
yihui | 0:9c6b9280c0e1 | 825 | return true; |
yihui | 0:9c6b9280c0e1 | 826 | } |
yihui | 3:4189a10038e6 | 827 | |
yihui | 3:4189a10038e6 | 828 | int16_t PN532::inRelease(const uint8_t relevantTarget){ |
yihui | 3:4189a10038e6 | 829 | |
yihui | 3:4189a10038e6 | 830 | pn532_packetbuffer[0] = PN532_COMMAND_INRELEASE; |
yihui | 3:4189a10038e6 | 831 | pn532_packetbuffer[1] = relevantTarget; |
yihui | 3:4189a10038e6 | 832 | |
yihui | 3:4189a10038e6 | 833 | if (HAL(writeCommand)(pn532_packetbuffer, 2)) { |
yihui | 3:4189a10038e6 | 834 | return 0; |
yihui | 3:4189a10038e6 | 835 | } |
yihui | 3:4189a10038e6 | 836 | |
yihui | 3:4189a10038e6 | 837 | // read data packet |
yihui | 3:4189a10038e6 | 838 | return HAL(readResponse)(pn532_packetbuffer, sizeof(pn532_packetbuffer)); |
yihui | 3:4189a10038e6 | 839 | } |
yihui | 3:4189a10038e6 | 840 | |
yihui | 3:4189a10038e6 | 841 |