Tasmota/tasmota/tasmota_xsns_sensor/xsns_40_pn532.ino

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/*
xsns_40_pn532.ino - Support for PN532 (HSU) NFC Tag Reader on Tasmota
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2021-01-01 12:44:04 +00:00
Copyright (C) 2021 Andre Thomas and Theo Arends
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This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#define USE_PN532_HSU // Add support for PN532 using HSU (Serial) interface (+1k8 code, 140 bytes mem)
#define USE_PN532_DATA_FUNCTION // Add sensor40 command support for erase, setting data block content (+1k7 code, 388 bytes mem)
// #define USE_PN532_DATA_RAW // Allow DATA block to be used by non-alpha-numberic data (+ 80 bytes code, 48 bytes ram)
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#ifdef USE_PN532_HSU
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/*********************************************************************************************\
* PN532 - 13.56 MHz RFID and NFC reader
\*********************************************************************************************/
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#define XSNS_40 40
#include <TasmotaSerial.h>
TasmotaSerial *PN532_Serial;
#define PN532_INVALID_ACK -1
#define PN532_TIMEOUT -2
#define PN532_INVALID_FRAME -3
#define PN532_NO_SPACE -4
#define PN532_PREAMBLE 0x00
#define PN532_STARTCODE1 0x00
#define PN532_STARTCODE2 0xFF
#define PN532_POSTAMBLE 0x00
#define PN532_HOSTTOPN532 0xD4
#define PN532_PN532TOHOST 0xD5
#define PN532_ACK_WAIT_TIME 0x0A
#define PN532_COMMAND_GETFIRMWAREVERSION 0x02
#define PN532_COMMAND_SAMCONFIGURATION 0x14
#define PN532_COMMAND_RFCONFIGURATION 0x32
#define PN532_COMMAND_INDATAEXCHANGE 0x40
#define PN532_COMMAND_INCOMMUNICATETHRU 0x42
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#define PN532_COMMAND_INLISTPASSIVETARGET 0x4A
#define PN532_COMMAND_INRELEASE 0x52
#define PN532_COMMAND_INSELECT 0x54
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#define PN532_MIFARE_ISO14443A 0x00
#define MIFARE_CMD_READ 0x30
#define MIFARE_CMD_AUTH_A 0x60
#define MIFARE_CMD_AUTH_B 0x61
#define MIFARE_CMD_WRITE 0xA0
#define NTAG21X_CMD_GET_VERSION 0x60
#define NTAG21X_CMD_READ 0x30
#define NTAG21X_CMD_FAST_READ 0x3A
#define NTAG21X_CMD_PWD_AUTH 0x1B
const struct {
uint8_t version[6];
uint8_t confPage;
} NTAG[] PROGMEM ={
{.version={0x04, 0x02, 0x01, 0x00, 0x0f, 0x03},.confPage=0x29}, /* NTAG213 */
{.version={0x04, 0x02, 0x01, 0x00, 0x11, 0x03},.confPage=0x83}, /* NTAG215 */
{.version={0x04, 0x02, 0x01, 0x00, 0x13, 0x03},.confPage=0xe3}, /* NTAG216 */
{.version={0x04, 0x05, 0x02, 0x02, 0x13, 0x03},.confPage=0xe3}, /* NT3H2111 */
{.version={0x04, 0x05, 0x02, 0x02, 0x15, 0x03},.confPage=0xe3}, /* NT3H2211 */
};
#define NTAG_CNT (sizeof(NTAG)/7) // num records in NTAG array
struct PN532 {
char uids[21]; // Number of bytes in the UID. 4, 7 or 10
uint8_t packetbuffer[64]; // Global buffer used to store packet
uint8_t command = 0; // Carry command code between functions
uint8_t scantimer = 0; // Prevent multiple successful reads within 2 second window
bool present = false; // Maintain detection flag
uint16_t atqa;
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#ifdef USE_PN532_DATA_FUNCTION
uint8_t newdata[33];
uint8_t function = 0;
// uint8_t newdata_len = 0;
uint32_t pwd_auth=0x64636261;
uint16_t pwd_pack=0x6665;
uint32_t pwd_auth_new;
uint16_t pwd_pack_new;
#endif // USE_PN532_DATA_FUNCTION
} Pn532;
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void PN532_Init(void) {
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if (PinUsed(GPIO_PN532_RXD) && PinUsed(GPIO_PN532_TXD)) {
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PN532_Serial = new TasmotaSerial(Pin(GPIO_PN532_RXD), Pin(GPIO_PN532_TXD), 1);
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if (PN532_Serial->begin(115200)) {
if (PN532_Serial->hardwareSerial()) { ClaimSerial(); }
PN532_wakeup();
uint32_t ver = PN532_getFirmwareVersion();
if (ver) {
uint8_t empty_uid[4] = { 0 };
ToHex_P((unsigned char*)empty_uid, sizeof(empty_uid), Pn532.uids, sizeof(Pn532.uids));
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PN532_setPassiveActivationRetries(0xFF);
PN532_SAMConfig();
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AddLog(LOG_LEVEL_INFO,"NFC: PN532 NFC Reader detected v%u.%u",(ver>>16) & 0xFF, (ver>>8) & 0xFF);
Pn532.present = true;
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}
}
}
}
int8_t PN532_receive(uint8_t *buf, int len, uint16_t timeout) {
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int read_bytes = 0;
int ret;
unsigned long start_millis;
while (read_bytes < len) {
start_millis = millis();
do {
ret = PN532_Serial->read();
if (ret >= 0) {
break;
}
} while((timeout == 0) || ((millis()- start_millis ) < timeout));
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if (ret < 0) {
if (read_bytes) {
return read_bytes;
} else {
return PN532_TIMEOUT;
}
}
buf[read_bytes] = (uint8_t)ret;
read_bytes++;
}
return read_bytes;
}
int8_t PN532_readAckFrame(void) {
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const uint8_t PN532_ACK[] = {0, 0, 0xFF, 0, 0xFF, 0};
uint8_t ackBuf[sizeof(PN532_ACK)];
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if (PN532_receive(ackBuf, sizeof(PN532_ACK), PN532_ACK_WAIT_TIME) <= 0) {
return PN532_TIMEOUT;
}
if (memcmp(&ackBuf, &PN532_ACK, sizeof(PN532_ACK))) {
return PN532_INVALID_ACK;
}
return 0;
}
int8_t PN532_writeCommand(const uint8_t *header, uint8_t hlen, const uint8_t *body = 0, uint8_t blen = 0) {
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// Clear the serial buffer just in case
PN532_Serial->flush();
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Pn532.command = header[0];
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PN532_Serial->write((uint8_t)PN532_PREAMBLE);
PN532_Serial->write((uint8_t)PN532_STARTCODE1);
PN532_Serial->write(PN532_STARTCODE2);
uint8_t length = hlen + blen + 1; // length of data field: TFI + DATA
PN532_Serial->write(length);
PN532_Serial->write(~length + 1); // checksum of length
PN532_Serial->write(PN532_HOSTTOPN532);
uint8_t sum = PN532_HOSTTOPN532; // sum of TFI + DATA
PN532_Serial->write(header, hlen);
for (uint32_t i = 0; i < hlen; i++) {
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sum += header[i];
}
PN532_Serial->write(body, blen);
for (uint32_t i = 0; i < blen; i++) {
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sum += body[i];
}
uint8_t checksum = ~sum + 1; // checksum of TFI + DATA
PN532_Serial->write(checksum);
PN532_Serial->write((uint8_t)PN532_POSTAMBLE);
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return PN532_readAckFrame();
}
int16_t PN532_readResponse(uint8_t buf[], uint8_t len, uint16_t timeout = 50) {
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uint8_t tmp[3];
// Read preamble and start code
if (PN532_receive(tmp, 3, timeout)<=0) {
return PN532_TIMEOUT;
}
if (0 != tmp[0] || 0!= tmp[1] || 0xFF != tmp[2]) {
return PN532_INVALID_FRAME;
}
// Get length of data to be received
uint8_t length[2];
if (PN532_receive(length, 2, timeout) <= 0) {
return PN532_TIMEOUT;
}
// Validate that frame is valid
if (0 != (uint8_t)(length[0] + length[1])) {
return PN532_INVALID_FRAME;
}
length[0] -= 2;
if (length[0] > len) { // If this happens, then Pn532.packetbuffer is not large enough
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return PN532_NO_SPACE;
}
// Get the command byte
uint8_t cmd = Pn532.command + 1;
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if (PN532_receive(tmp, 2, timeout) <= 0) { // Time out while receiving
return PN532_TIMEOUT;
}
if (PN532_PN532TOHOST != tmp[0] || cmd != tmp[1]) { // Invalid frame received
return PN532_INVALID_FRAME;
}
if (PN532_receive(buf, length[0], timeout) != length[0]) { // Timed out
return PN532_TIMEOUT;
}
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uint8_t sum = PN532_PN532TOHOST + cmd;
for (uint32_t i=0; i<length[0]; i++) {
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sum += buf[i];
}
// Checksum & postamble
if (PN532_receive(tmp, 2, timeout) <= 0) {
return PN532_TIMEOUT;
}
if (0 != (uint8_t)(sum + tmp[0]) || 0 != tmp[1]) { // Checksum fail, so frame must be invalid
return PN532_INVALID_FRAME;
}
return length[0];
}
uint32_t PN532_getFirmwareVersion(void) {
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uint32_t response;
Pn532.packetbuffer[0] = PN532_COMMAND_GETFIRMWAREVERSION;
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if (PN532_writeCommand(Pn532.packetbuffer, 1)) {
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return 0;
}
// Read data packet
int16_t status = PN532_readResponse(Pn532.packetbuffer, sizeof(Pn532.packetbuffer));
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if (0 > status) {
return 0;
}
response = Pn532.packetbuffer[0];
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response <<= 8;
response |= Pn532.packetbuffer[1];
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response <<= 8;
response |= Pn532.packetbuffer[2];
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response <<= 8;
response |= Pn532.packetbuffer[3];
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return response;
}
void PN532_wakeup(void) {
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uint8_t wakeup[5] = {0x55, 0x55, 0, 0, 0 };
PN532_Serial->write(wakeup,sizeof(wakeup));
// Flush the serial buffer just in case there's garbage in there
PN532_Serial->flush();
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}
bool PN532_readPassiveTargetID(uint8_t cardbaudrate, uint8_t *uid, uint8_t *uidLength, uint16_t timeout = 50) {
Pn532.packetbuffer[0] = PN532_COMMAND_INLISTPASSIVETARGET;
Pn532.packetbuffer[1] = 1; // max 1 cards at once (we can set this to 2 later)
Pn532.packetbuffer[2] = cardbaudrate;
if (PN532_writeCommand(Pn532.packetbuffer, 3)) {
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return 0x0; // command failed
}
// read data packet
if (PN532_readResponse(Pn532.packetbuffer, sizeof(Pn532.packetbuffer), timeout) < 0) {
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return 0x0;
}
/* Check some basic stuff
b0 Tags Found
b1 Tag Number (only one used in this example)
b2..3 SENS_RES
b4 SEL_RES
b5 NFCID Length
b6..NFCIDLen NFCID
*/
if (Pn532.packetbuffer[0] != 1) {
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return 0;
}
Pn532.atqa = Pn532.packetbuffer[2];
Pn532.atqa <<= 8;
Pn532.atqa |= Pn532.packetbuffer[3];
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/* Card appears to be Mifare Classic */
*uidLength = Pn532.packetbuffer[5];
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for (uint32_t i = 0; i < Pn532.packetbuffer[5]; i++) {
uid[i] = Pn532.packetbuffer[6 + i];
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}
return 1;
}
bool PN532_setPassiveActivationRetries(uint8_t maxRetries) {
Pn532.packetbuffer[0] = PN532_COMMAND_RFCONFIGURATION;
Pn532.packetbuffer[1] = 5; // Config item 5 (MaxRetries)
Pn532.packetbuffer[2] = 0xFF; // MxRtyATR (default = 0xFF)
Pn532.packetbuffer[3] = 0x01; // MxRtyPSL (default = 0x01)
Pn532.packetbuffer[4] = maxRetries;
if (PN532_writeCommand(Pn532.packetbuffer, 5)) {
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return 0; // no ACK
}
return (0 < PN532_readResponse(Pn532.packetbuffer, sizeof(Pn532.packetbuffer)));
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}
bool PN532_SAMConfig(void) {
Pn532.packetbuffer[0] = PN532_COMMAND_SAMCONFIGURATION;
Pn532.packetbuffer[1] = 0x01; // normal mode
Pn532.packetbuffer[2] = 0x14; // timeout 50ms * 20 = 1 second
Pn532.packetbuffer[3] = 0x00; // we don't need the external IRQ pin
if (PN532_writeCommand(Pn532.packetbuffer, 4)) {
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return false;
}
return (0 < PN532_readResponse(Pn532.packetbuffer, sizeof(Pn532.packetbuffer)));
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}
void PN532_inRelease(void) {
Pn532.packetbuffer[0] = PN532_COMMAND_INRELEASE;
Pn532.packetbuffer[1] = 1;
if (PN532_writeCommand(Pn532.packetbuffer, 2)) {
return;
}
PN532_readResponse(Pn532.packetbuffer, sizeof(Pn532.packetbuffer));
}
void PN532_inSelect(void) {
Pn532.packetbuffer[0] = PN532_COMMAND_INSELECT;
Pn532.packetbuffer[1] = 1;
if (PN532_writeCommand(Pn532.packetbuffer, 2)) {
return ;
}
int16_t res = PN532_readResponse(Pn532.packetbuffer, sizeof(Pn532.packetbuffer));
AddLog(LOG_LEVEL_DEBUG_MORE, PSTR("NFC: Select %d %x"), res, Pn532.packetbuffer[0]);
}
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#ifdef USE_PN532_DATA_FUNCTION
uint8_t mifareclassic_AuthenticateBlock (uint8_t *uid, uint8_t uidLen, uint32_t blockNumber, uint8_t keyNumber, uint8_t *keyData) {
uint8_t i;
uint8_t _key[6];
uint8_t _uid[7];
uint8_t _uidLen;
// Hang on to the key and uid data
memcpy(&_key, keyData, 6);
memcpy(&_uid, uid, uidLen);
_uidLen = uidLen;
// Prepare the authentication command //
Pn532.packetbuffer[0] = PN532_COMMAND_INDATAEXCHANGE; /* Data Exchange Header */
Pn532.packetbuffer[1] = 1; /* Max card numbers */
Pn532.packetbuffer[2] = (keyNumber) ? MIFARE_CMD_AUTH_B : MIFARE_CMD_AUTH_A;
Pn532.packetbuffer[3] = blockNumber; /* Block Number (1K = 0..63, 4K = 0..255 */
memcpy(&Pn532.packetbuffer[4], &_key, 6);
for (i = 0; i < _uidLen; i++) {
Pn532.packetbuffer[10 + i] = _uid[i]; /* 4 bytes card ID */
}
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if (PN532_writeCommand(Pn532.packetbuffer, 10 + _uidLen)) { return 0; }
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// Read the response packet
PN532_readResponse(Pn532.packetbuffer, sizeof(Pn532.packetbuffer));
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// Check if the response is valid and we are authenticated???
// for an auth success it should be bytes 5-7: 0xD5 0x41 0x00
// Mifare auth error is technically byte 7: 0x14 but anything other and 0x00 is not good
if (Pn532.packetbuffer[0] != 0x00) {
// Authentification failed
return 0;
}
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return 1;
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}
uint8_t mifareclassic_ReadDataBlock (uint8_t blockNumber, uint8_t *data) {
/* Prepare the command */
Pn532.packetbuffer[0] = PN532_COMMAND_INDATAEXCHANGE;
Pn532.packetbuffer[1] = 1; /* Card number */
Pn532.packetbuffer[2] = MIFARE_CMD_READ; /* Mifare Read command = 0x30 */
Pn532.packetbuffer[3] = blockNumber; /* Block Number (0..63 for 1K, 0..255 for 4K) */
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/* Send the command */
if (PN532_writeCommand(Pn532.packetbuffer, 4)) {
return 0;
}
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/* Read the response packet */
PN532_readResponse(Pn532.packetbuffer, sizeof(Pn532.packetbuffer));
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/* If byte 8 isn't 0x00 we probably have an error */
if (Pn532.packetbuffer[0] != 0x00) {
return 0;
}
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/* Copy the 16 data bytes to the output buffer */
/* Block content starts at byte 9 of a valid response */
memcpy (data, &Pn532.packetbuffer[1], 16);
return 1;
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}
uint8_t mifareclassic_WriteDataBlock (uint8_t blockNumber, uint8_t *data) {
/* Prepare the first command */
Pn532.packetbuffer[0] = PN532_COMMAND_INDATAEXCHANGE;
Pn532.packetbuffer[1] = 1; /* Card number */
Pn532.packetbuffer[2] = MIFARE_CMD_WRITE; /* Mifare Write command = 0xA0 */
Pn532.packetbuffer[3] = blockNumber; /* Block Number (0..63 for 1K, 0..255 for 4K) */
memcpy(&Pn532.packetbuffer[4], data, 16); /* Data Payload */
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/* Send the command */
if (PN532_writeCommand(Pn532.packetbuffer, 20)) {
return 0;
}
/* Read the response packet */
return (0 < PN532_readResponse(Pn532.packetbuffer, sizeof(Pn532.packetbuffer)));
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}
uint8_t ntag21x_probe (void) {
uint8_t result=0;
Pn532.packetbuffer[0] = PN532_COMMAND_INCOMMUNICATETHRU;
Pn532.packetbuffer[1] = NTAG21X_CMD_GET_VERSION;
if (PN532_writeCommand(Pn532.packetbuffer, 2)) {
return result;
}
if (PN532_readResponse(Pn532.packetbuffer, sizeof(Pn532.packetbuffer))<9){
return result;
}
/* AddLog(LOG_LEVEL_DEBUG_MORE, PSTR("NFC: NTAG Version %02x %02x %02x %02x %02x %02x %02x %02x %02x"),
Pn532.packetbuffer[0],Pn532.packetbuffer[1],Pn532.packetbuffer[2],Pn532.packetbuffer[3],
Pn532.packetbuffer[4],Pn532.packetbuffer[5],Pn532.packetbuffer[6],Pn532.packetbuffer[7],
Pn532.packetbuffer[8]);
*/
if (Pn532.packetbuffer[3] != 4) { // not NTAG type
return result;
}
for (uint8_t i=0; i<NTAG_CNT; i++) {
if (0 == memcmp_P(&Pn532.packetbuffer[3],&NTAG[i].version[0],6)) memcpy_P(&result,&NTAG[i].confPage,sizeof(result));
}
return result; //Return configuration page address
}
bool ntag21x_read32(char *out, uint8_t out_len) {
if (out_len<33) return false;
Pn532.packetbuffer[0] = PN532_COMMAND_INCOMMUNICATETHRU;
Pn532.packetbuffer[1] = NTAG21X_CMD_FAST_READ;
Pn532.packetbuffer[2] = 0x04; // first page
Pn532.packetbuffer[3] = 0x0b; // last page
if (PN532_writeCommand(Pn532.packetbuffer, 4)) {
return false;
}
if ((PN532_readResponse(Pn532.packetbuffer, sizeof(Pn532.packetbuffer)))<33){
return false;
}
if (Pn532.packetbuffer[0]!=0) {
return false;
}
memcpy(out,&Pn532.packetbuffer[1],out_len);
out[32]=0;
return true;
}
bool ntag21x_auth(void) {
Pn532.packetbuffer[0] = PN532_COMMAND_INCOMMUNICATETHRU;
Pn532.packetbuffer[1] = NTAG21X_CMD_PWD_AUTH;
memcpy(&Pn532.packetbuffer[2],&Pn532.pwd_auth,4);
if (PN532_writeCommand(Pn532.packetbuffer, 6)) {
return false;
}
if ((PN532_readResponse(Pn532.packetbuffer, sizeof(Pn532.packetbuffer)))<3){
return false;
}
if (Pn532.packetbuffer[0]) { //PN532 return any error
return false;
}
return memcmp(&Pn532.packetbuffer[1],&Pn532.pwd_pack,2)==0;
}
bool ntag20x_read32(char *out, uint8_t out_len) {
if (out_len<33) return false;
Pn532.packetbuffer[0] = PN532_COMMAND_INCOMMUNICATETHRU;
Pn532.packetbuffer[1] = NTAG21X_CMD_READ;
Pn532.packetbuffer[2] = 0x04; // first page
if (PN532_writeCommand(Pn532.packetbuffer, 3)) {
return false;
}
if ((PN532_readResponse(Pn532.packetbuffer, sizeof(Pn532.packetbuffer)))<17){
return false;
}
if (Pn532.packetbuffer[0]!=0) {
return false;
}
memcpy(out,&Pn532.packetbuffer[1],16);
Pn532.packetbuffer[0] = PN532_COMMAND_INCOMMUNICATETHRU;
Pn532.packetbuffer[1] = NTAG21X_CMD_READ;
Pn532.packetbuffer[2] = 0x08; // first page
if (PN532_writeCommand(Pn532.packetbuffer, 3)) {
return false;
}
if ((PN532_readResponse(Pn532.packetbuffer, sizeof(Pn532.packetbuffer)))<17){
return false;
}
if (Pn532.packetbuffer[0]!=0) {
return false;
}
memcpy(&out[16],&Pn532.packetbuffer[1],16);
out[32]=0;
return true;
}
#endif // USE_PN532_DATA_FUNCTION
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void PN532_ScanForTag(void) {
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uint8_t uid[] = { 0, 0, 0, 0, 0, 0, 0 };
uint8_t uid_len = 0;
if (PN532_readPassiveTargetID(PN532_MIFARE_ISO14443A, uid, &uid_len)) {
ToHex_P((unsigned char*)uid, uid_len, Pn532.uids, sizeof(Pn532.uids));
#ifdef USE_PN532_DATA_FUNCTION
bool success = false;
char card_datas[34]={0};
enum {NOPWD, PWD_NONE, PWD_OK, PWD_NOK} str_pwd=NOPWD;
if (Pn532.atqa == 0x44) {
uint8_t confPage=0;
uint8_t nuid[] = { 0, 0, 0, 0, 0, 0, 0 };
uint8_t nuid_len = 0;
if ((confPage=ntag21x_probe())>0) {
/* NTAG EV1 found*/
str_pwd=PWD_NONE;
if (!ntag21x_read32(card_datas, sizeof(card_datas))) {
if (PN532_readPassiveTargetID(PN532_MIFARE_ISO14443A, nuid, &nuid_len)) {
if (memcmp(uid, nuid, sizeof(uid))==0) {
if (ntag21x_auth()) {str_pwd=PWD_OK;} else {str_pwd=PWD_NOK;}
if (!ntag21x_read32(card_datas, sizeof(card_datas))) card_datas[0]=0;
}
}
}
} else {
if (PN532_readPassiveTargetID(PN532_MIFARE_ISO14443A, nuid, &nuid_len)) {
if (memcmp(uid, nuid, sizeof(uid))==0) {
if (!ntag20x_read32(card_datas, sizeof(card_datas))) card_datas[0]=0;
}
}
}
} else
if (uid_len == 4) { // Lets try to read block 1 of the mifare classic card for more information
uint8_t keyuniversal[6] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
if (mifareclassic_AuthenticateBlock (uid, uid_len, 1, 1, keyuniversal)) {
uint8_t card_data[16];
if (mifareclassic_ReadDataBlock(1, card_data)) {
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#ifdef USE_PN532_DATA_RAW
memcpy(&card_datas,&card_data,sizeof(card_data));
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#else
for (uint32_t i = 0;i < sizeof(card_data);i++) {
if (isprint(card_data[i])) {
card_datas[i] = char(card_data[i]);
} else {
card_datas[i] = '\0';
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}
}
#endif // USE_PN532_DATA_RAW
}
if (Pn532.function == 1) { // erase block 1 of card
//TODO : Test
for (uint32_t i = 0;i<16;i++) {
card_data[i] = 0x00;
}
if (mifareclassic_WriteDataBlock(1, card_data)) {
success = true;
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AddLog(LOG_LEVEL_INFO, PSTR("NFC: PN532 NFC - Erase success"));
memcpy(&card_datas,&card_data,sizeof(card_data)); // Cast block 1 to a string
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}
}
if (Pn532.function == 2) {
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#ifdef USE_PN532_DATA_RAW
memcpy(&card_data,&Pn532.newdata,sizeof(card_data));
if (mifareclassic_WriteDataBlock(1, card_data)) {
success = true;
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AddLog(LOG_LEVEL_INFO, PSTR("NFC: PN532 NFC - Data write successful"));
memcpy(&card_datas,&card_data,sizeof(card_data)); // Cast block 1 to a string
}
#else
bool IsAlphaNumeric = true;
for (uint32_t i = 0;i < Pn532.newdata_len;i++) {
if (!isprint(Pn532.newdata[i])) {
IsAlphaNumeric = false;
}
}
if (IsAlphaNumeric) {
memcpy(&card_data,&Pn532.newdata,Pn532.newdata_len);
card_data[Pn532.newdata_len] = '\0'; // Enforce null termination
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if (mifareclassic_WriteDataBlock(1, card_data)) {
success = true;
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AddLog(LOG_LEVEL_INFO, PSTR("NFC: PN532 NFC - Data write successful"));
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memcpy(&card_datas,&card_data,sizeof(card_data)); // Cast block 1 to a string
}
} else {
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AddLog(LOG_LEVEL_INFO, PSTR("NFC: PN532 NFC - Data must be alphanumeric"));
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}
#endif // USE_PN532_DATA_RAW
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}
} else {
sprintf_P(card_datas, PSTR("AUTHFAIL"));
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}
}
switch (Pn532.function) {
case 0x01:
if (!success) {
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AddLog(LOG_LEVEL_INFO, PSTR("NFC: PN532 NFC - Erase fail - exiting erase mode"));
}
break;
case 0x02:
if (!success) {
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AddLog(LOG_LEVEL_INFO, PSTR("NFC: PN532 NFC - Write failed - exiting set mode"));
}
default:
break;
}
Pn532.function = 0;
ResponseTime_P(PSTR(",\"PN532\":{\"UID\":\"%s\",\"" D_JSON_DATA "\":\"%s\""), Pn532.uids, card_datas);
if (str_pwd == PWD_NONE) {
ResponseAppend_P(PSTR(",\"Auth\":\"None\""));
} else
if (str_pwd == PWD_OK) {
ResponseAppend_P(PSTR(",\"Auth\":\"Ok\""));
} else
if (str_pwd == PWD_NOK) {
ResponseAppend_P(PSTR(",\"Auth\":\"NOk\""));
}
ResponseAppend_P(PSTR("}}"));
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#else
ResponseTime_P(PSTR(",\"PN532\":{\"UID\":\"%s\"}}"), Pn532.uids);
#endif // USE_PN532_DATA_FUNCTION
MqttPublishTeleSensor();
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PN532_inRelease();
Pn532.scantimer = 7; // Ignore tags found for two seconds
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}
}
#ifdef USE_PN532_DATA_FUNCTION
bool PN532_Command(void) {
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bool serviced = true;
uint8_t paramcount = 0;
if (XdrvMailbox.data_len > 0) {
paramcount=1;
} else {
serviced = false;
return serviced;
}
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char argument[XdrvMailbox.data_len];
/*
for (uint32_t ca=0;ca<XdrvMailbox.data_len;ca++) {
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if ((' ' == XdrvMailbox.data[ca]) || ('=' == XdrvMailbox.data[ca])) { XdrvMailbox.data[ca] = ','; }
if (',' == XdrvMailbox.data[ca]) { paramcount++; }
}
*/
// UpperCase(XdrvMailbox.data,XdrvMailbox.data);
ArgV(argument, 1);
UpperCase(argument,argument);
if (!strcmp(argument,"E")) {
Pn532.function = 1; // Block 1 of next card/tag will be reset to 0x00...
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AddLog(LOG_LEVEL_INFO, PSTR("NFC: PN532 NFC - Next scanned tag data block 1 will be erased"));
ResponseTime_P(PSTR(",\"PN532\":{\"COMMAND\":\"E\"}}"));
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return serviced;
} else
if (!strcmp(argument,"S")) {
if (ArgC() > 1) {
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if (XdrvMailbox.data[XdrvMailbox.data_len-1] == ',') {
serviced = false;
return serviced;
}
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ArgV(argument, 2);
Pn532.newdata_len = strlen(argument);
if (Pn532.newdata_len > 15) { Pn532.newdata_len = 15; }
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memcpy(&Pn532.newdata,&argument,Pn532.newdata_len);
Pn532.newdata[Pn532.newdata_len] = 0x00; // Null terminate the string
Pn532.function = 2;
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AddLog(LOG_LEVEL_INFO, PSTR("NFC: PN532 NFC - Next scanned tag data block 1 will be set to '%s'"), Pn532.newdata);
ResponseTime_P(PSTR(",\"PN532\":{\"COMMAND\":\"S\"}}"));
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return serviced;
}
} else
if (!strncmp_P(argument,PSTR("AUTH"),4)) {
if (ArgC() > 1) {
Pn532.pwd_auth=strtoul(ArgV(argument,2),nullptr,0);
AddLog(LOG_LEVEL_DEBUG, PSTR("%08x"), Pn532.pwd_auth);
ResponseTime_P(PSTR(",\"PN532\":{\"COMMAND\":\"NTAG_PWD\"}}"));
}
if (ArgC() > 2) {
Pn532.pwd_pack=strtoul(ArgV(argument,3),nullptr,0);
AddLog(LOG_LEVEL_DEBUG, PSTR("%08x"), Pn532.pwd_pack);
}
return true;
} else
if (!strncmp_P(argument,PSTR("SET_PWD"),7)) {
ResponseTime_P(PSTR(",\"PN532\":{\"COMMAND\":\"SET_PWD\"}}"));
Pn532.pwd_auth_new=Pn532.pwd_auth;
Pn532.pwd_pack_new=Pn532.pwd_pack;
if (ArgC() > 1) {
Pn532.pwd_auth_new=strtoul(ArgV(argument,2),nullptr,0);
}
if (ArgC() > 2) {
Pn532.pwd_pack_new=strtoul(ArgV(argument,3),nullptr,0);
}
Pn532.function = 3;
return true;
} else
if (!strncmp_P(argument,PSTR("UNSET_PWD"),9)) {
ResponseTime_P(PSTR(",\"PN532\":{\"COMMAND\":\"UNSET_PWD\"}}"));
Pn532.function = 4;
return true;
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}
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return false;
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}
#endif // USE_PN532_DATA_FUNCTION
#ifdef USE_WEBSERVER
void PN532_Show(void) {
WSContentSend_PD(PSTR("{s}PN532 UID{m}%s{e}"), Pn532.uids);
}
#endif // USE_WEBSERVER
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/*********************************************************************************************\
* Interface
\*********************************************************************************************/
bool Xsns40(uint8_t function) {
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bool result = false;
if (FUNC_INIT == function) {
PN532_Init();
}
else if (Pn532.present) {
switch (function) {
case FUNC_EVERY_250_MSECOND:
if (Pn532.scantimer > 0) {
Pn532.scantimer--;
} else {
PN532_ScanForTag();
}
break;
#ifdef USE_WEBSERVER
case FUNC_WEB_SENSOR:
PN532_Show();
break;
#endif // USE_WEBSERVER
#ifdef USE_PN532_DATA_FUNCTION
case FUNC_COMMAND_SENSOR:
if (XSNS_40 == XdrvMailbox.index) {
result = PN532_Command();
}
break;
#endif // USE_PN532_DATA_FUNCTION
}
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}
return result;
}
#endif // USE_PN532_HSU