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nfc_initiator_target_is_present(): Support B'

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This commit is contained in:
Philippe Teuwen 2014-02-07 00:31:31 +01:00
parent 7254e1b2ea
commit a3a7111210
1 changed files with 34 additions and 3 deletions
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37
libnfc/chips/pn53x.c
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@ -1935,6 +1935,35 @@ static int pn53x_ISO14443B_4_is_present(struct nfc_device *pnd)
return ret;
}
static int pn53x_ISO14443B_I_is_present(struct nfc_device *pnd)
{
int ret;
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_DEBUG, "%s", "target_is_present(): Ping B'");
// Sending R(NACK) in raw:
if ((ret = pn53x_set_property_bool(pnd, NP_EASY_FRAMING, false)) < 0)
return ret;
uint8_t abtCmd[6] = {0x01, 0x0f}; // ATTRIB
memcpy(abtCmd+2, CHIP_DATA(pnd)->current_target->nti.nii.abtDIV, 4);
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;
}
}
int ret2;
if ((ret2 = pn53x_set_property_bool(pnd, NP_EASY_FRAMING, true)) < 0)
ret = ret2;
return ret;
}
int
pn53x_initiator_target_is_present(struct nfc_device *pnd, const nfc_target *pnt)
{
@ -1973,13 +2002,15 @@ pn53x_initiator_target_is_present(struct nfc_device *pnd, const nfc_target *pnt)
case NMT_FELICA:
ret = pn53x_Felica_is_present(pnd);
break;
case NMT_ISO14443B:
ret = pn53x_ISO14443B_4_is_present(pnd);
break;
case NMT_JEWEL:
ret = pn53x_ISO14443A_Jewel_is_present(pnd);
break;
case NMT_ISO14443B:
ret = pn53x_ISO14443B_4_is_present(pnd);
break;
case NMT_ISO14443BI:
ret = pn53x_ISO14443B_I_is_present(pnd);
break;
case NMT_ISO14443B2SR:
case NMT_ISO14443B2CT:
default: