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复制库，删除未使用函数：

Browse Source 
https://github.com/elechouse/PN532
https://github.com/spicetools/spicetools
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Sucareto 2023-02-04 18:04:36 +08:00
parent abaf6d5fe3
commit 7a279737d3
7 changed files with 859 additions and 681 deletions
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717
src/PN532.cpp
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199
src/PN532.h
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@ -16,139 +16,138 @@
#include "PN532Interface.h" #include "PN532Interface.h"
// PN532 Commands // PN532 Commands
#define PN532_COMMAND_DIAGNOSE (0x00) #define PN532_COMMAND_DIAGNOSE (0x00)
#define PN532_COMMAND_GETFIRMWAREVERSION (0x02) #define PN532_COMMAND_GETFIRMWAREVERSION (0x02)
#define PN532_COMMAND_GETGENERALSTATUS (0x04) #define PN532_COMMAND_GETGENERALSTATUS (0x04)
#define PN532_COMMAND_READREGISTER (0x06) #define PN532_COMMAND_READREGISTER (0x06)
#define PN532_COMMAND_WRITEREGISTER (0x08) #define PN532_COMMAND_WRITEREGISTER (0x08)
#define PN532_COMMAND_READGPIO (0x0C) #define PN532_COMMAND_READGPIO (0x0C)
#define PN532_COMMAND_WRITEGPIO (0x0E) #define PN532_COMMAND_WRITEGPIO (0x0E)
#define PN532_COMMAND_SETSERIALBAUDRATE (0x10) #define PN532_COMMAND_SETSERIALBAUDRATE (0x10)
#define PN532_COMMAND_SETPARAMETERS (0x12) #define PN532_COMMAND_SETPARAMETERS (0x12)
#define PN532_COMMAND_SAMCONFIGURATION (0x14) #define PN532_COMMAND_SAMCONFIGURATION (0x14)
#define PN532_COMMAND_POWERDOWN (0x16) #define PN532_COMMAND_POWERDOWN (0x16)
#define PN532_COMMAND_RFCONFIGURATION (0x32) #define PN532_COMMAND_RFCONFIGURATION (0x32)
#define PN532_COMMAND_RFREGULATIONTEST (0x58) #define PN532_COMMAND_RFREGULATIONTEST (0x58)
#define PN532_COMMAND_INJUMPFORDEP (0x56) #define PN532_COMMAND_INJUMPFORDEP (0x56)
#define PN532_COMMAND_INJUMPFORPSL (0x46) #define PN532_COMMAND_INJUMPFORPSL (0x46)
#define PN532_COMMAND_INLISTPASSIVETARGET (0x4A) #define PN532_COMMAND_INLISTPASSIVETARGET (0x4A)
#define PN532_COMMAND_INATR (0x50) #define PN532_COMMAND_INATR (0x50)
#define PN532_COMMAND_INPSL (0x4E) #define PN532_COMMAND_INPSL (0x4E)
#define PN532_COMMAND_INDATAEXCHANGE (0x40) #define PN532_COMMAND_INDATAEXCHANGE (0x40)
#define PN532_COMMAND_INCOMMUNICATETHRU (0x42) #define PN532_COMMAND_INCOMMUNICATETHRU (0x42)
#define PN532_COMMAND_INDESELECT (0x44) #define PN532_COMMAND_INDESELECT (0x44)
#define PN532_COMMAND_INRELEASE (0x52) #define PN532_COMMAND_INRELEASE (0x52)
#define PN532_COMMAND_INSELECT (0x54) #define PN532_COMMAND_INSELECT (0x54)
#define PN532_COMMAND_INAUTOPOLL (0x60) #define PN532_COMMAND_INAUTOPOLL (0x60)
#define PN532_COMMAND_TGINITASTARGET (0x8C) #define PN532_COMMAND_TGINITASTARGET (0x8C)
#define PN532_COMMAND_TGSETGENERALBYTES (0x92) #define PN532_COMMAND_TGSETGENERALBYTES (0x92)
#define PN532_COMMAND_TGGETDATA (0x86) #define PN532_COMMAND_TGGETDATA (0x86)
#define PN532_COMMAND_TGSETDATA (0x8E) #define PN532_COMMAND_TGSETDATA (0x8E)
#define PN532_COMMAND_TGSETMETADATA (0x94) #define PN532_COMMAND_TGSETMETADATA (0x94)
#define PN532_COMMAND_TGGETINITIATORCOMMAND (0x88) #define PN532_COMMAND_TGGETINITIATORCOMMAND (0x88)
#define PN532_COMMAND_TGRESPONSETOINITIATOR (0x90) #define PN532_COMMAND_TGRESPONSETOINITIATOR (0x90)
#define PN532_COMMAND_TGGETTARGETSTATUS (0x8A) #define PN532_COMMAND_TGGETTARGETSTATUS (0x8A)
#define PN532_RESPONSE_INDATAEXCHANGE (0x41) #define PN532_RESPONSE_INDATAEXCHANGE (0x41)
#define PN532_RESPONSE_INLISTPASSIVETARGET (0x4B) #define PN532_RESPONSE_INLISTPASSIVETARGET (0x4B)
#define PN532_MIFARE_ISO14443A (0x00) #define PN532_MIFARE_ISO14443A (0x00)
// Mifare Commands // Mifare Commands
#define MIFARE_CMD_AUTH_A (0x60) #define MIFARE_CMD_AUTH_A (0x60)
#define MIFARE_CMD_AUTH_B (0x61) #define MIFARE_CMD_AUTH_B (0x61)
#define MIFARE_CMD_READ (0x30) #define MIFARE_CMD_READ (0x30)
#define MIFARE_CMD_WRITE (0xA0) #define MIFARE_CMD_WRITE (0xA0)
#define MIFARE_CMD_WRITE_ULTRALIGHT (0xA2) #define MIFARE_CMD_WRITE_ULTRALIGHT (0xA2)
#define MIFARE_CMD_TRANSFER (0xB0) #define MIFARE_CMD_TRANSFER (0xB0)
#define MIFARE_CMD_DECREMENT (0xC0) #define MIFARE_CMD_DECREMENT (0xC0)
#define MIFARE_CMD_INCREMENT (0xC1) #define MIFARE_CMD_INCREMENT (0xC1)
#define MIFARE_CMD_STORE (0xC2) #define MIFARE_CMD_STORE (0xC2)
// FeliCa Commands // FeliCa Commands
#define FELICA_CMD_POLLING (0x00) #define FELICA_CMD_POLLING (0x00)
#define FELICA_CMD_REQUEST_SERVICE (0x02) #define FELICA_CMD_REQUEST_SERVICE (0x02)
#define FELICA_CMD_REQUEST_RESPONSE (0x04) #define FELICA_CMD_REQUEST_RESPONSE (0x04)
#define FELICA_CMD_READ_WITHOUT_ENCRYPTION (0x06) #define FELICA_CMD_READ_WITHOUT_ENCRYPTION (0x06)
#define FELICA_CMD_WRITE_WITHOUT_ENCRYPTION (0x08) #define FELICA_CMD_WRITE_WITHOUT_ENCRYPTION (0x08)
#define FELICA_CMD_REQUEST_SYSTEM_CODE (0x0C) #define FELICA_CMD_REQUEST_SYSTEM_CODE (0x0C)
// FeliCa consts // FeliCa consts
#define FELICA_READ_MAX_SERVICE_NUM 16 #define FELICA_READ_MAX_SERVICE_NUM 16
#define FELICA_READ_MAX_BLOCK_NUM 12 // for typical FeliCa card #define FELICA_READ_MAX_BLOCK_NUM 12 // for typical FeliCa card
#define FELICA_WRITE_MAX_SERVICE_NUM 16 #define FELICA_WRITE_MAX_SERVICE_NUM 16
#define FELICA_WRITE_MAX_BLOCK_NUM 10 // for typical FeliCa card #define FELICA_WRITE_MAX_BLOCK_NUM 10 // for typical FeliCa card
#define FELICA_REQ_SERVICE_MAX_NODE_NUM 32 #define FELICA_REQ_SERVICE_MAX_NODE_NUM 32
class PN532 class PN532 {
{
public: public:
PN532(PN532Interface &interface); PN532(PN532Interface &interface);
void begin(void); void begin(void);
// Generic PN532 functions // Generic PN532 functions
bool SAMConfig(void); bool SAMConfig(void);
uint32_t getFirmwareVersion(void); uint32_t getFirmwareVersion(void);
uint32_t readRegister(uint16_t reg); uint32_t readRegister(uint16_t reg);
uint32_t writeRegister(uint16_t reg, uint8_t val); uint32_t writeRegister(uint16_t reg, uint8_t val);
bool setPassiveActivationRetries(uint8_t maxRetries); bool setPassiveActivationRetries(uint8_t maxRetries);
bool setRFField(uint8_t autoRFCA, uint8_t rFOnOff); bool setRFField(uint8_t autoRFCA, uint8_t rFOnOff);
/** /**
* @brief Init PN532 as a target * @brief Init PN532 as a target
* @param timeout max time to wait, 0 means no timeout * @param timeout max time to wait, 0 means no timeout
* @return > 0 success * @return > 0 success
* = 0 timeout * = 0 timeout
* < 0 failed * < 0 failed
*/ */
int8_t tgInitAsTarget(uint16_t timeout = 0); int8_t tgInitAsTarget(uint16_t timeout = 0);
int8_t tgInitAsTarget(const uint8_t* command, const uint8_t len, const uint16_t timeout = 0); int8_t tgInitAsTarget(const uint8_t *command, const uint8_t len, const uint16_t timeout = 0);
int16_t tgGetData(uint8_t *buf, uint8_t len); int16_t tgGetData(uint8_t *buf, uint8_t len);
bool tgSetData(const uint8_t *header, uint8_t hlen, const uint8_t *body = 0, uint8_t blen = 0); bool tgSetData(const uint8_t *header, uint8_t hlen, const uint8_t *body = 0, uint8_t blen = 0);
int16_t inRelease(const uint8_t relevantTarget = 0); int16_t inRelease(const uint8_t relevantTarget = 0);
// ISO14443A functions // ISO14443A functions
bool inListPassiveTarget(); bool inListPassiveTarget();
bool readPassiveTargetID(uint8_t cardbaudrate, uint8_t *uid, uint8_t *uidLength, uint16_t timeout = 1000); bool readPassiveTargetID(uint8_t cardbaudrate, uint8_t *uid, uint8_t *uidLength, uint16_t timeout = 1000);
bool inDataExchange(uint8_t *send, uint8_t sendLength, uint8_t *response, uint8_t *responseLength); bool inDataExchange(uint8_t *send, uint8_t sendLength, uint8_t *response, uint8_t *responseLength);
// Mifare Classic functions // Mifare Classic functions
bool mifareclassic_IsFirstBlock (uint32_t uiBlock); bool mifareclassic_IsFirstBlock(uint32_t uiBlock);
bool mifareclassic_IsTrailerBlock (uint32_t uiBlock); bool mifareclassic_IsTrailerBlock(uint32_t uiBlock);
uint8_t mifareclassic_AuthenticateBlock (uint8_t *uid, uint8_t uidLen, uint32_t blockNumber, uint8_t keyNumber, uint8_t *keyData); uint8_t mifareclassic_AuthenticateBlock(uint8_t *uid, uint8_t uidLen, uint32_t blockNumber, uint8_t keyNumber, uint8_t *keyData);
uint8_t mifareclassic_ReadDataBlock (uint8_t blockNumber, uint8_t *data); uint8_t mifareclassic_ReadDataBlock(uint8_t blockNumber, uint8_t *data);
uint8_t mifareclassic_WriteDataBlock (uint8_t blockNumber, uint8_t *data); uint8_t mifareclassic_WriteDataBlock(uint8_t blockNumber, uint8_t *data);
// FeliCa Functions // FeliCa Functions
int8_t felica_Polling(uint16_t systemCode, uint8_t requestCode, uint8_t *idm, uint8_t *pmm, uint16_t *systemCodeResponse, uint16_t timeout=1000); int8_t felica_Polling(uint16_t systemCode, uint8_t requestCode, uint8_t *idm, uint8_t *pmm, uint16_t *systemCodeResponse, uint16_t timeout = 1000);
int8_t felica_SendCommand (const uint8_t * command, uint8_t commandlength, uint8_t * response, uint8_t * responseLength); int8_t felica_SendCommand(const uint8_t *command, uint8_t commandlength, uint8_t *response, uint8_t *responseLength);
int8_t felica_RequestService(uint8_t numNode, uint16_t *nodeCodeList, uint16_t *keyVersions) ; int8_t felica_RequestService(uint8_t numNode, uint16_t *nodeCodeList, uint16_t *keyVersions);
int8_t felica_RequestResponse(uint8_t *mode); int8_t felica_RequestResponse(uint8_t *mode);
int8_t felica_ReadWithoutEncryption (uint8_t numService, const uint16_t *serviceCodeList, uint8_t numBlock, const uint16_t *blockList, uint8_t blockData[][16]); int8_t felica_ReadWithoutEncryption(uint8_t numService, const uint16_t *serviceCodeList, uint8_t numBlock, const uint16_t *blockList, uint8_t blockData[][16]);
int8_t felica_WriteWithoutEncryption (uint8_t numService, const uint16_t *serviceCodeList, uint8_t numBlock, const uint16_t *blockList, uint8_t blockData[][16]); int8_t felica_WriteWithoutEncryption(uint8_t numService, const uint16_t *serviceCodeList, uint8_t numBlock, const uint16_t *blockList, uint8_t blockData[][16]);
int8_t felica_RequestSystemCode(uint8_t *numSystemCode, uint16_t *systemCodeList); int8_t felica_RequestSystemCode(uint8_t *numSystemCode, uint16_t *systemCodeList);
int8_t felica_Release(); int8_t felica_Release();
uint8_t *getBuffer(uint8_t *len) { uint8_t *getBuffer(uint8_t *len) {
*len = sizeof(pn532_packetbuffer) - 4; *len = sizeof(pn532_packetbuffer) - 4;
return pn532_packetbuffer; return pn532_packetbuffer;
}; };
private: private:
uint8_t _uid[7]; // ISO14443A uid uint8_t _uid[7]; // ISO14443A uid
uint8_t _uidLen; // uid len uint8_t _uidLen; // uid len
uint8_t _key[6]; // Mifare Classic key uint8_t _key[6]; // Mifare Classic key
uint8_t inListedTag; // Tg number of inlisted tag. uint8_t inListedTag; // Tg number of inlisted tag.
uint8_t _felicaIDm[8]; // FeliCa IDm (NFCID2) uint8_t _felicaIDm[8]; // FeliCa IDm (NFCID2)
uint8_t _felicaPMm[8]; // FeliCa PMm (PAD) uint8_t _felicaPMm[8]; // FeliCa PMm (PAD)
uint8_t pn532_packetbuffer[64]; uint8_t pn532_packetbuffer[64];
PN532Interface *_interface; PN532Interface *_interface;
}; };
#endif #endif

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src/PN532Interface.h
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@ -5,32 +5,32 @@
#ifndef __PN532_INTERFACE_H__ #ifndef __PN532_INTERFACE_H__
#define __PN532_INTERFACE_H__ #define __PN532_INTERFACE_H__
#define PN532_PREAMBLE (0x00) #define PN532_PREAMBLE (0x00)
#define PN532_STARTCODE1 (0x00) #define PN532_STARTCODE1 (0x00)
#define PN532_STARTCODE2 (0xFF) #define PN532_STARTCODE2 (0xFF)
#define PN532_POSTAMBLE (0x00) #define PN532_POSTAMBLE (0x00)
#define PN532_HOSTTOPN532 (0xD4) #define PN532_HOSTTOPN532 (0xD4)
#define PN532_PN532TOHOST (0xD5) #define PN532_PN532TOHOST (0xD5)
#define PN532_ACK_WAIT_TIME (10) // ms, timeout of waiting for ACK #define PN532_ACK_WAIT_TIME (10) // ms, timeout of waiting for ACK
#define PN532_INVALID_ACK (-1) #define PN532_INVALID_ACK (-1)
#define PN532_TIMEOUT (-2) #define PN532_TIMEOUT (-2)
#define PN532_INVALID_FRAME (-3) #define PN532_INVALID_FRAME (-3)
#define PN532_NO_SPACE (-4) #define PN532_NO_SPACE (-4)
#define REVERSE_BITS_ORDER(b) b = (b & 0xF0) >> 4 | (b & 0x0F) << 4; \ #define REVERSE_BITS_ORDER(b) \
b = (b & 0xCC) >> 2 | (b & 0x33) << 2; \ b = (b & 0xF0) >> 4 | (b & 0x0F) << 4; \
b = (b & 0xAA) >> 1 | (b & 0x55) << 1 b = (b & 0xCC) >> 2 | (b & 0x33) << 2; \
b = (b & 0xAA) >> 1 | (b & 0x55) << 1
class PN532Interface class PN532Interface {
{
public: public:
virtual void begin() = 0; virtual void begin() = 0;
virtual void wakeup() = 0; virtual void wakeup() = 0;
/** /**
* @brief write a command and check ack * @brief write a command and check ack
* @param header packet header * @param header packet header
* @param hlen length of header * @param hlen length of header
@ -39,9 +39,9 @@ public:
* @return 0 success * @return 0 success
* not 0 failed * not 0 failed
*/ */
virtual int8_t writeCommand(const uint8_t *header, uint8_t hlen, const uint8_t *body = 0, uint8_t blen = 0) = 0; virtual int8_t writeCommand(const uint8_t *header, uint8_t hlen, const uint8_t *body = 0, uint8_t blen = 0) = 0;
/** /**
* @brief read the response of a command, strip prefix and suffix * @brief read the response of a command, strip prefix and suffix
* @param buf to contain the response data * @param buf to contain the response data
* @param len lenght to read * @param len lenght to read
@ -49,8 +49,7 @@ public:
* @return >=0 length of response without prefix and suffix * @return >=0 length of response without prefix and suffix
* <0 failed to read response * <0 failed to read response
*/ */
virtual int16_t readResponse(uint8_t buf[], uint8_t len, uint16_t timeout = 1000) = 0; virtual int16_t readResponse(uint8_t buf[], uint8_t len, uint16_t timeout = 1000) = 0;
}; };
#endif #endif

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src/PN532_SPI.cpp
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@ -5,195 +5,182 @@
#include "PN532_SPI.h" #include "PN532_SPI.h"
#include "Arduino.h" #include "Arduino.h"
#define STATUS_READ 2 #define STATUS_READ 2
#define DATA_WRITE 1 #define DATA_WRITE 1
#define DATA_READ 3 #define DATA_READ 3
PN532_SPI::PN532_SPI(SPIClass &spi, uint8_t ss) PN532_SPI::PN532_SPI(SPIClass &spi, uint8_t ss) {
{ command = 0;
command = 0; _spi = &spi;
_spi = &spi; _ss = ss;
_ss = ss;
} }
void PN532_SPI::begin() void PN532_SPI::begin() {
{ pinMode(_ss, OUTPUT);
pinMode(_ss, OUTPUT);
_spi->begin(); _spi->begin();
_spi->setDataMode(SPI_MODE0); // PN532 only supports mode0 _spi->setDataMode(SPI_MODE0); // PN532 only supports mode0
_spi->setBitOrder(LSBFIRST); _spi->setBitOrder(LSBFIRST);
#ifndef __SAM3X8E__ #ifndef __SAM3X8E__
_spi->setClockDivider(SPI_CLOCK_DIV8); // set clock 2MHz(max: 5MHz) _spi->setClockDivider(SPI_CLOCK_DIV8); // set clock 2MHz(max: 5MHz)
#else #else
/** DUE spi library does not support SPI_CLOCK_DIV8 macro */ /** DUE spi library does not support SPI_CLOCK_DIV8 macro */
_spi->setClockDivider(42); // set clock 2MHz(max: 5MHz) _spi->setClockDivider(42); // set clock 2MHz(max: 5MHz)
#endif #endif
} }
void PN532_SPI::wakeup() void PN532_SPI::wakeup() {
{ digitalWrite(_ss, LOW);
digitalWrite(_ss, LOW); delay(2);
delay(2); digitalWrite(_ss, HIGH);
digitalWrite(_ss, HIGH);
} }
int8_t PN532_SPI::writeCommand(const uint8_t *header, uint8_t hlen, const uint8_t *body, uint8_t blen) int8_t PN532_SPI::writeCommand(const uint8_t *header, uint8_t hlen, const uint8_t *body, uint8_t blen) {
{ command = header[0];
command = header[0]; writeFrame(header, hlen, body, blen);
writeFrame(header, hlen, body, blen);
uint8_t timeout = PN532_ACK_WAIT_TIME;
while (!isReady()) {
delay(1);
timeout--;
if (0 == timeout) {
return -2;
}
}
if (readAckFrame()) {
return PN532_INVALID_ACK;
}
return 0;
}
int16_t PN532_SPI::readResponse(uint8_t buf[], uint8_t len, uint16_t timeout) uint8_t timeout = PN532_ACK_WAIT_TIME;
{ while (!isReady()) {
uint16_t time = 0;
while (!isReady()) {
delay(1);
time++;
if (timeout > 0 && time > timeout) {
return PN532_TIMEOUT;
}
}
digitalWrite(_ss, LOW);
delay(1); delay(1);
timeout--;
int16_t result; if (0 == timeout) {
do { return -2;
write(DATA_READ);
if (0x00 != read() || // PREAMBLE
0x00 != read() || // STARTCODE1
0xFF != read() // STARTCODE2
) {
result = PN532_INVALID_FRAME;
break;
}
uint8_t length = read();
if (0 != (uint8_t)(length + read())) { // checksum of length
result = PN532_INVALID_FRAME;
break;
}
uint8_t cmd = command + 1; // response command
if (PN532_PN532TOHOST != read() || (cmd) != read()) {
result = PN532_INVALID_FRAME;
break;
}
length -= 2;
if (length > len) {
for (uint8_t i = 0; i < length; i++) {
}
read();
read();
result = PN532_NO_SPACE; // not enough space
break;
}
uint8_t sum = PN532_PN532TOHOST + cmd;
for (uint8_t i = 0; i < length; i++) {
buf[i] = read();
sum += buf[i];
}
uint8_t checksum = read();
if (0 != (uint8_t)(sum + checksum)) {
result = PN532_INVALID_FRAME;
break;
}
read(); // POSTAMBLE
result = length;
} while (0);
digitalWrite(_ss, HIGH);
return result;
}
bool PN532_SPI::isReady()
{
digitalWrite(_ss, LOW);
write(STATUS_READ);
uint8_t status = read() & 1;
digitalWrite(_ss, HIGH);
return status;
}
void PN532_SPI::writeFrame(const uint8_t *header, uint8_t hlen, const uint8_t *body, uint8_t blen)
{
digitalWrite(_ss, LOW);
delay(2); // wake up PN532
write(DATA_WRITE);
write(PN532_PREAMBLE);
write(PN532_STARTCODE1);
write(PN532_STARTCODE2);
uint8_t length = hlen + blen + 1; // length of data field: TFI + DATA
write(length);
write(~length + 1); // checksum of length
write(PN532_HOSTTOPN532);
uint8_t sum = PN532_HOSTTOPN532; // sum of TFI + DATA
for (uint8_t i = 0; i < hlen; i++) {
write(header[i]);
sum += header[i];
} }
for (uint8_t i = 0; i < blen; i++) { }
write(body[i]); if (readAckFrame()) {
sum += body[i]; return PN532_INVALID_ACK;
}
} return 0;
uint8_t checksum = ~sum + 1; // checksum of TFI + DATA
write(checksum);
write(PN532_POSTAMBLE);
digitalWrite(_ss, HIGH);
} }
int8_t PN532_SPI::readAckFrame() int16_t PN532_SPI::readResponse(uint8_t buf[], uint8_t len, uint16_t timeout) {
{ uint16_t time = 0;
const uint8_t PN532_ACK[] = {0, 0, 0xFF, 0, 0xFF, 0}; while (!isReady()) {
uint8_t ackBuf[sizeof(PN532_ACK)];
digitalWrite(_ss, LOW);
delay(1); delay(1);
time++;
if (timeout > 0 && time > timeout) {
return PN532_TIMEOUT;
}
}
digitalWrite(_ss, LOW);
delay(1);
int16_t result;
do {
write(DATA_READ); write(DATA_READ);
for (uint8_t i = 0; i < sizeof(PN532_ACK); i++) { if (0x00 != read() || // PREAMBLE
ackBuf[i] = read(); 0x00 != read() || // STARTCODE1
0xFF != read() // STARTCODE2
) {
result = PN532_INVALID_FRAME;
break;
} }
digitalWrite(_ss, HIGH); uint8_t length = read();
if (0 != (uint8_t)(length + read())) { // checksum of length
result = PN532_INVALID_FRAME;
break;
}
return memcmp(ackBuf, PN532_ACK, sizeof(PN532_ACK)); uint8_t cmd = command + 1; // response command
if (PN532_PN532TOHOST != read() || (cmd) != read()) {
result = PN532_INVALID_FRAME;
break;
}
length -= 2;
if (length > len) {
for (uint8_t i = 0; i < length; i++) {
}
read();
read();
result = PN532_NO_SPACE; // not enough space
break;
}
uint8_t sum = PN532_PN532TOHOST + cmd;
for (uint8_t i = 0; i < length; i++) {
buf[i] = read();
sum += buf[i];
}
uint8_t checksum = read();
if (0 != (uint8_t)(sum + checksum)) {
result = PN532_INVALID_FRAME;
break;
}
read(); // POSTAMBLE
result = length;
} while (0);
digitalWrite(_ss, HIGH);
return result;
}
bool PN532_SPI::isReady() {
digitalWrite(_ss, LOW);
write(STATUS_READ);
uint8_t status = read() & 1;
digitalWrite(_ss, HIGH);
return status;
}
void PN532_SPI::writeFrame(const uint8_t *header, uint8_t hlen, const uint8_t *body, uint8_t blen) {
digitalWrite(_ss, LOW);
delay(2); // wake up PN532
write(DATA_WRITE);
write(PN532_PREAMBLE);
write(PN532_STARTCODE1);
write(PN532_STARTCODE2);
uint8_t length = hlen + blen + 1; // length of data field: TFI + DATA
write(length);
write(~length + 1); // checksum of length
write(PN532_HOSTTOPN532);
uint8_t sum = PN532_HOSTTOPN532; // sum of TFI + DATA
for (uint8_t i = 0; i < hlen; i++) {
write(header[i]);
sum += header[i];
}
for (uint8_t i = 0; i < blen; i++) {
write(body[i]);
sum += body[i];
}
uint8_t checksum = ~sum + 1; // checksum of TFI + DATA
write(checksum);
write(PN532_POSTAMBLE);
digitalWrite(_ss, HIGH);
}
int8_t PN532_SPI::readAckFrame() {
const uint8_t PN532_ACK[] = { 0, 0, 0xFF, 0, 0xFF, 0 };
uint8_t ackBuf[sizeof(PN532_ACK)];
digitalWrite(_ss, LOW);
delay(1);
write(DATA_READ);
for (uint8_t i = 0; i < sizeof(PN532_ACK); i++) {
ackBuf[i] = read();
}
digitalWrite(_ss, HIGH);
return memcmp(ackBuf, PN532_ACK, sizeof(PN532_ACK));
} }

42
src/PN532_SPI.h
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@ -9,30 +9,30 @@
#include "PN532Interface.h" #include "PN532Interface.h"
class PN532_SPI : public PN532Interface { class PN532_SPI : public PN532Interface {
public: public:
PN532_SPI(SPIClass &spi, uint8_t ss); PN532_SPI(SPIClass &spi, uint8_t ss);
void begin(); void begin();
void wakeup(); void wakeup();
int8_t writeCommand(const uint8_t *header, uint8_t hlen, const uint8_t *body = 0, uint8_t blen = 0); int8_t writeCommand(const uint8_t *header, uint8_t hlen, const uint8_t *body = 0, uint8_t blen = 0);
int16_t readResponse(uint8_t buf[], uint8_t len, uint16_t timeout);
int16_t readResponse(uint8_t buf[], uint8_t len, uint16_t timeout);
private: private:
SPIClass* _spi; SPIClass *_spi;
uint8_t _ss; uint8_t _ss;
uint8_t command; uint8_t command;
bool isReady();
void writeFrame(const uint8_t *header, uint8_t hlen, const uint8_t *body = 0, uint8_t blen = 0);
int8_t readAckFrame();
inline void write(uint8_t data) {
_spi->transfer(data);
};
inline uint8_t read() { bool isReady();
return _spi->transfer(0); void writeFrame(const uint8_t *header, uint8_t hlen, const uint8_t *body = 0, uint8_t blen = 0);
}; int8_t readAckFrame();
inline void write(uint8_t data) {
_spi->transfer(data);
};
inline uint8_t read() {
return _spi->transfer(0);
};
}; };
#endif #endif

76
src/connection.h Normal file
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@ -0,0 +1,76 @@
/*
库代码来自：https://github.com/spicetools/spicetools/tree/master/api/resources/arduino
删除了未使用的函数。
*/
#ifndef SPICEAPI_CONNECTION_H
#define SPICEAPI_CONNECTION_H
#include <stdint.h>
#ifndef SPICEAPI_INTERFACE
#define SPICEAPI_INTERFACE Serial
#endif
namespace spiceapi {
class Connection {
private:
uint8_t* receive_buffer;
size_t receive_buffer_size;
public:
Connection(size_t receive_buffer_size);
void reset();
const char* request(char* json);
};
}
spiceapi::Connection::Connection(size_t receive_buffer_size) {
this->receive_buffer = new uint8_t[receive_buffer_size];
this->receive_buffer_size = receive_buffer_size;
this->reset();
}
void spiceapi::Connection::reset() {
// drop all input
while (SPICEAPI_INTERFACE.available()) {
SPICEAPI_INTERFACE.read();
}
}
const char* spiceapi::Connection::request(char* json_data) {
auto json_len = strlen(json_data) + 1;
// send
auto send_result = SPICEAPI_INTERFACE.write((const char*)json_data, (int)json_len);
SPICEAPI_INTERFACE.flush();
if (send_result < (int)json_len) {
return "";
}
// receive
size_t receive_data_len = 0;
while (SPICEAPI_INTERFACE) {
// read single byte
auto b = SPICEAPI_INTERFACE.read();
if (b < 0) continue;
receive_buffer[receive_data_len++] = b;
// check for buffer overflow
if (receive_data_len >= receive_buffer_size) {
this->reset();
return "";
}
// check for message end
if (receive_buffer[receive_data_len - 1] == 0)
break;
}
// return resulting json
return (const char*)&receive_buffer[0];
}
#endif //SPICEAPI_CONNECTION_H

140
src/wrappers.h Normal file
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@ -0,0 +1,140 @@
/*
库代码来自：https://github.com/spicetools/spicetools/tree/master/api/resources/arduino
删除了未使用的函数。
*/
#ifndef SPICEAPI_WRAPPERS_H
#define SPICEAPI_WRAPPERS_H
#define ARDUINOJSON_USE_LONG_LONG 1
#include "ArduinoJson.h"
#include <Arduino.h>
#include "connection.h"
// default buffer sizes
#ifndef SPICEAPI_WRAPPER_BUFFER_SIZE
#define SPICEAPI_WRAPPER_BUFFER_SIZE 256
#endif
#ifndef SPICEAPI_WRAPPER_BUFFER_SIZE_STR
#define SPICEAPI_WRAPPER_BUFFER_SIZE_STR 256
#endif
namespace spiceapi {
/*
* Structs
*/
struct InfoAvs {
String model, dest, spec, rev, ext;
};
// static storage
char JSON_BUFFER_STR[SPICEAPI_WRAPPER_BUFFER_SIZE_STR];
/*
* Helpers
*/
uint64_t msg_gen_id() {
static uint64_t id_global = 0;
return ++id_global;
}
char *doc2str(DynamicJsonDocument *doc) {
char *buf = JSON_BUFFER_STR;
serializeJson(*doc, buf, SPICEAPI_WRAPPER_BUFFER_SIZE_STR);
return buf;
}
DynamicJsonDocument *request_gen(const char *module, const char *function) {
// create document
auto doc = new DynamicJsonDocument(SPICEAPI_WRAPPER_BUFFER_SIZE);
// add attributes
(*doc)["id"] = msg_gen_id();
(*doc)["module"] = module;
(*doc)["function"] = function;
// add params
(*doc).createNestedArray("params");
// return document
return doc;
}
DynamicJsonDocument *response_get(Connection &con, const char *json) {
// parse document
DynamicJsonDocument *doc = new DynamicJsonDocument(SPICEAPI_WRAPPER_BUFFER_SIZE);
auto err = deserializeJson(*doc, (char *)json);
// check for parse error
if (err) {
delete doc;
return nullptr;
}
// check id
if (!(*doc)["id"].is<int64_t>()) {
delete doc;
return nullptr;
}
// check errors
auto errors = (*doc)["errors"];
if (!errors.is<JsonArray>()) {
delete doc;
return nullptr;
}
// check error count
if (errors.as<JsonArray>().size() > 0) {
delete doc;
return nullptr;
}
// check data
if (!(*doc)["data"].is<JsonArray>()) {
delete doc;
return nullptr;
}
// return document
return doc;
}
bool card_insert(Connection &con, size_t index, const char *card_id) {
auto req = request_gen("card", "insert");
auto params = (*req)["params"].as<JsonArray>();
params.add(index);
params.add(card_id);
auto req_str = doc2str(req);
delete req;
auto res = response_get(con, con.request(req_str));
if (!res)
return false;
delete res;
return true;
}
bool info_avs(Connection &con, InfoAvs &info) {
auto req = request_gen("info", "avs");
auto req_str = doc2str(req);
delete req;
auto res = response_get(con, con.request(req_str));
if (!res)
return false;
auto data = (*res)["data"][0];
info.model = (const char *)data["model"];
info.dest = (const char *)data["dest"];
info.spec = (const char *)data["spec"];
info.rev = (const char *)data["rev"];
info.ext = (const char *)data["ext"];
delete res;
return true;
}
}
#endif //SPICEAPI_WRAPPERS_H