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nfc_initiator_target_is_present(): Support B2 ST SRx

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This commit is contained in:
Philippe Teuwen 2014-02-07 01:11:19 +01:00
parent 9fd11d331b
commit 1e4fe3bd27
1 changed files with 27 additions and 2 deletions
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29
libnfc/chips/pn53x.c
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@ -1964,10 +1964,33 @@ static int pn53x_ISO14443B_I_is_present(struct nfc_device *pnd)
return ret;
}
static int pn53x_ISO14443B_SR_is_present(struct nfc_device *pnd)
{
int ret;
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_DEBUG, "%s", "target_is_present(): Ping B2 ST SRx");
// Sending Get_UID in raw: (EASY_FRAMING is already supposed to be false)
uint8_t abtCmd[1] = {0x0b};
int failures = 0;
while (failures < 2) {
if ((ret = nfc_initiator_transceive_bytes(pnd, abtCmd, sizeof(abtCmd), NULL, 0, 300)) < 1) {
if ((ret == NFC_ERFTRANS) && (CHIP_DATA(pnd)->last_status_byte == 0x01)) { // Timeout
ret = NFC_ETGRELEASED;
break;
} else { // Other errors can appear when card is tired-off, let's try again
failures++;
}
} else {
ret = NFC_SUCCESS;
break;
}
}
return ret;
}
static int pn53x_ISO14443B_CT_is_present(struct nfc_device *pnd)
{
int ret;
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_DEBUG, "%s", "target_is_present(): Ping B2 ASK CT");
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_DEBUG, "%s", "target_is_present(): Ping B2 ASK CTx");
// Sending SELECT in raw: (EASY_FRAMING is already supposed to be false)
uint8_t abtCmd[3] = {0x9f};
memcpy(abtCmd + 1, CHIP_DATA(pnd)->current_target->nti.nci.abtUID, 2);
@ -2035,10 +2058,12 @@ pn53x_initiator_target_is_present(struct nfc_device *pnd, const nfc_target *pnt)
case NMT_ISO14443BI:
ret = pn53x_ISO14443B_I_is_present(pnd);
break;
case NMT_ISO14443B2SR:
ret = pn53x_ISO14443B_SR_is_present(pnd);
break;
case NMT_ISO14443B2CT:
ret = pn53x_ISO14443B_CT_is_present(pnd);
break;
case NMT_ISO14443B2SR:
default:
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_DEBUG, "%s", "target_is_present(): card type not supported");
ret = NFC_EDEVNOTSUPP;