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Start of work on error handling.

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This commit is contained in:
Romain Tartiere 2010-07-26 12:41:46 +00:00
parent 9a7ffc38a1
commit 9984e1bdcb
7 changed files with 109 additions and 31 deletions
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86
libnfc/chips/pn53x.c
View file

@ -60,8 +60,10 @@ const byte_t pncmd_target_receive [ 2] = { 0xD4,0x88 };
const byte_t pncmd_target_send [264] = { 0xD4,0x90 };
const byte_t pncmd_target_get_status [ 2] = { 0xD4,0x8A };
const char *
pn53x_err2string (int iError, char const **ppcDescription);
bool pn53x_transceive(const nfc_device_t* pnd, const byte_t* pbtTx, const size_t szTxLen, byte_t* pbtRx, size_t* pszRxLen)
bool pn53x_transceive(nfc_device_t* pnd, const byte_t* pbtTx, const size_t szTxLen, byte_t* pbtRx, size_t* pszRxLen)
{
byte_t abtRx[MAX_FRAME_LEN];
size_t szRxLen;
@ -75,14 +77,24 @@ bool pn53x_transceive(const nfc_device_t* pnd, const byte_t* pbtTx, const size_t
*pszRxLen = MAX_FRAME_LEN;
// Call the tranceive callback function of the current device
printf ("Entering transceive (bsin = %lu, bsout = %lu)\n", szTxLen, *pszRxLen);
if (!pnd->pdc->transceive(pnd->nds,pbtTx,szTxLen,pbtRx,pszRxLen)) return false;
printf ("Leaving transceive (bsin = %lu, bsout = %lu)\n", szTxLen, *pszRxLen);
pnd->iErrorCode = pbtRx[0] & 0x2f;
// Make sure there was no failure reported by the PN53X chip (0x00 == OK)
// FIXME (0x00 == OK) is not always true...
if (pbtRx[0] != 0) return false;
if (pnd->iErrorCode != 0) {
const char *s, *l;
s = pn53x_err2string (pnd->iErrorCode, &l);
if (s) {
printf (" s = %s\n l = %s\n", s, l);
}
}
// Succesful transmission
return true;
return (0 == pnd->iErrorCode);
}
byte_t pn53x_get_reg(const nfc_device_t* pnd, uint16_t ui16Reg)
@ -302,7 +314,7 @@ pn53x_InListPassiveTarget(const nfc_device_t* pnd,
}
bool
pn53x_InDeselect(const nfc_device_t* pnd, const uint8_t ui8Target)
pn53x_InDeselect(nfc_device_t* pnd, const uint8_t ui8Target)
{
byte_t abtCmd[sizeof(pncmd_initiator_deselect)];
memcpy(abtCmd,pncmd_initiator_deselect,sizeof(pncmd_initiator_deselect));
@ -310,3 +322,67 @@ pn53x_InDeselect(const nfc_device_t* pnd, const uint8_t ui8Target)
return(pn53x_transceive(pnd,abtCmd,sizeof(abtCmd),NULL,NULL));
}
struct sErrorMessage {
int iError;
const char *pcErrorMsg;
const char *pcErrorDescription;
} sErrorMessages[] = {
{ 0x00, "success", "The request was successful." },
{ 0x01, "timout", "Time Out, the target has not answered." },
{ 0x02, "crc error", "A CRC error has been detected by the CIU." },
{ 0x03, "parity error", "A Parity error has been detected by the CIU." },
{ 0x04, "wrong bit count", "During an anti-collision/select operation (ISO/IEC14443-3 Type A and ISO/"
"IEC18092 106 kbps passive mode), an erroneous Bit Count has been detected." },
{ 0x05, "framing error", "Framing error during Mifare operation." },
{ 0x06, "bit-collision", "An abnormal bit-collision has been detected during bit wise anti-collision"
" at 106 kbps." },
{ 0x07, "buffer too small", "Communication buffer size insufficient." },
{ 0x09, "buffer overflow", "RF Buffer overflow has been detected by the CIU (bit BufferOvfl of the register"
" CIU_Error)." },
{ 0x0a, "timout", "In active communication mode, the RF field has not been switched on in time by"
" the counterpart (as defined in NFCIP-1 standard)." },
{ 0x0b, "protocol error", "RF Protocol error." },
{ 0x0d, "temerature", "The internal temperature sensor has detected overheating, and therefore has"
" automatically switched off the antenna drivers." },
{ 0x0e, "overflow", "Internal buffer overflow." },
{ 0x10, "invalid parameter", "Invalid parameter."},
/* DEP Errors */
{ 0x12, "unknown command", "The PN532 configured in target mode does not support the command received from"
" the initiator." },
{ 0x13, "invalid parameter", "The data format does not match to the specification." },
/* MIFARE */
{ 0x14, "authentication", "Authentication error." },
{ 0x23, "check byte", "ISO/IEC14443-3: UID Check byte is wrong." },
{ 0x25, "invalid state", "The system is in a state which does not allow the operation." },
{ 0x26, "operation not allowed", "Operation not allowed in this configuration (host controller interface)." },
{ 0x27, "command not acceptable", "This command is not acceptable due to the current context of the PN532"
" (Initiator vs. Target, unknown target number, Target not in the good state,"
" ...)" },
{ 0x29, "target released", "The PN532 configured as target has been released by its initiator." },
{ 0x2a, "card id mismatch", "PN532 and ISO/IEC14443-3B only: the ID of the card does not match, meaning "
"that the expected card has been exchanged with another one." },
{ 0x2B, "card discarded", "PN532 and ISO/IEC14443-3B only: the card previously activated has disappeared." },
{ 0x2C, "NFCID3 mismatch", "Mismatch between the NFCID3 initiator and the NFCID3 target in DEP 212/424 kbps"
" passive." },
{ 0x2D, "over current", "An over-current event has been detected." },
{ 0x2E, "NAD missing", "NAD missing in DEP frame." },
};
const char *
pn53x_err2string (int iError, char const **ppcDescription)
{
const char *pcRes = NULL;
for (size_t i=0; i < (sizeof (sErrorMessages) / sizeof (struct sErrorMessage)); i++) {
if (sErrorMessages[i].iError == iError) {
pcRes = sErrorMessages[i].pcErrorMsg;
if (ppcDescription)
*ppcDescription = sErrorMessages[i].pcErrorDescription;
break;
}
}
return pcRes;
}

4
libnfc/chips/pn53x.h
View file

@ -69,7 +69,7 @@
#define RFCI_ANALOG_TYPE_B 0x0C // 3
#define RFCI_ANALOG_TYPE_14443_4 0x0D // 9
bool pn53x_transceive(const nfc_device_t* pnd, const byte_t* pbtTx, const size_t szTxLen, byte_t* pbtRx, size_t* pszRxLen);
bool pn53x_transceive(nfc_device_t* pnd, const byte_t* pbtTx, const size_t szTxLen, byte_t* pbtRx, size_t* pszRxLen);
byte_t pn53x_get_reg(const nfc_device_t* pnd, uint16_t ui16Reg);
bool pn53x_set_reg(const nfc_device_t* pnd, uint16_t ui16Reg, uint8_t ui8SybmolMask, uint8_t ui8Value);
bool pn53x_set_parameters(const nfc_device_t* pnd, uint8_t ui8Value);
@ -79,7 +79,7 @@ bool pn53x_unwrap_frame(const byte_t* pbtFrame, const size_t szFrameBits, byte_t
bool pn53x_decode_target_data(const byte_t* pbtRawData, size_t szDataLen, nfc_chip_t nc, nfc_target_type_t ntt, nfc_target_info_t* pnti);
bool pn53x_InListPassiveTarget(const nfc_device_t* pnd, const nfc_modulation_t nmInitModulation, const byte_t szMaxTargets, const byte_t* pbtInitiatorData, const size_t szInitiatorDataLen, byte_t* pbtTargetsData, size_t* pszTargetsData);
bool pn53x_InDeselect(const nfc_device_t* pnd, const uint8_t ui8Target);
bool pn53x_InDeselect(nfc_device_t* pnd, const uint8_t ui8Target);
#endif // __NFC_CHIPS_PN53X_H__