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Add ISO/IEC 14443 B' aka Type B' modulation partial support

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This commit is contained in:
Romuald Conty
2011-05-06 14:14:06 +00:00
parent 77e522aade
commit cd6946e751
7 changed files with 172 additions and 1 deletions
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13
libnfc/nfc.c
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@@ -83,6 +83,7 @@ const struct nfc_driver_t *nfc_drivers[] = {
* - Invalid frames are not accepted (NDO_ACCEPT_INVALID_FRAMES = false)
* - Multiple frames are not accepted (NDO_ACCEPT_MULTIPLE_FRAMES = false)
* - 14443-A mode is activated (NDO_FORCE_ISO14443_A = true)
* - speed is set to 106 kbps (NDO_FORCE_SPEED_106 = true)
* - Let the device try forever to find a target (NDO_INFINITE_SELECT = true)
* - RF field is shortly dropped (if it was enabled) then activated again
*/
@@ -241,6 +242,9 @@ nfc_initiator_init (nfc_device_t * pnd)
// Force 14443-A mode
if (!nfc_configure (pnd, NDO_FORCE_ISO14443_A, true))
return false;
// Force speed at 106kbps
if (!nfc_configure (pnd, NDO_FORCE_SPEED_106, true))
return false;
// Disallow invalid frame
if (!nfc_configure (pnd, NDO_ACCEPT_INVALID_FRAMES, false))
return false;
@@ -376,6 +380,12 @@ nfc_initiator_list_passive_targets (nfc_device_t * pnd,
szInitDataLen = 1;
}
break;
case NMT_ISO14443BI: {
// APGEN
pbtInitData = (byte_t *) "\x01\x0b\x3f\x80";
szInitDataLen = 4;
}
break;
case NMT_FELICA: {
// polling payload must be present (see ISO/IEC 18092 11.2.2.5)
pbtInitData = (byte_t *) "\x00\xff\xff\x01\x00";
@@ -396,7 +406,8 @@ nfc_initiator_list_passive_targets (nfc_device_t * pnd,
}
szTargetFound++;
// deselect has no effect on FeliCa and Jewel cards so we'll stop after one...
if ((nm.nmt == NMT_FELICA) || (nm.nmt == NMT_JEWEL)) {
// ISO/IEC 14443 B' cards are polled at 100% probability so it's not possible to detect correctly two cards at the same time
if ((nm.nmt == NMT_FELICA) || (nm.nmt == NMT_JEWEL) || (nm.nmt == NMT_ISO14443BI)) {
break;
}
}