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rework the way to determine which command is needed to send/receive a frame as target.

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This commit is contained in:
Romuald Conty 2011-06-30 17:05:59 +00:00
parent 3a1cb72681
commit 676477e20c
1 changed files with 44 additions and 18 deletions
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42
libnfc/chips/pn53x.c
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@ -1684,17 +1684,30 @@ pn53x_target_receive_bytes (nfc_device_t * pnd, byte_t * pbtRx, size_t * pszRx)
{ {
byte_t abtCmd[1]; byte_t abtCmd[1];
// XXX I think this is not a clean way to provide some kind of "EasyFraming"
// but at the moment I have no more better than this
if (pnd->bEasyFraming) { if (pnd->bEasyFraming) {
if ((CHIP_DATA (pnd)->current_target->nm.nmt == NMT_DEP) || // If DEP mode switch (CHIP_DATA (pnd)->current_target->nm.nmt) {
((CHIP_DATA(pnd)->type == PN532) && (pnd->bAutoIso14443_4) && case NMT_DEP:
(CHIP_DATA (pnd)->current_target->nm.nmt == NMT_ISO14443A) && (CHIP_DATA (pnd)->current_target->nti.nai.btSak & SAK_ISO14443_4_COMPLIANT)) // If ISO14443-4 PICC emulation
) {
abtCmd[0] = TgGetData; abtCmd[0] = TgGetData;
break;
case NMT_ISO14443A:
if (CHIP_DATA (pnd)->current_target->nti.nai.btSak & SAK_ISO14443_4_COMPLIANT) {
// We are dealing with a ISO/IEC 14443-4 compliant target
if ((CHIP_DATA(pnd)->type == PN532) && (pnd->bAutoIso14443_4)) {
// We are using ISO/IEC 14443-4 PICC emulation capability from the PN532
abtCmd[0] = TgGetData;
break;
} else { } else {
// TODO Support EasyFraming for other cases by software // TODO Support EasyFraming for other cases by software
pnd->iLastError = ENOTIMPL; pnd->iLastError = ENOTIMPL;
return false; return false;
} }
}
default:
abtCmd[0] = TgGetInitiatorCommand;
break;
}
} else { } else {
abtCmd[0] = TgGetInitiatorCommand; abtCmd[0] = TgGetInitiatorCommand;
} }
@ -1762,17 +1775,30 @@ pn53x_target_send_bytes (nfc_device_t * pnd, const byte_t * pbtTx, const size_t
if (!pnd->bPar) if (!pnd->bPar)
return false; return false;
// XXX I think this is not a clean way to provide some kind of "EasyFraming"
// but at the moment I have no more better than this
if (pnd->bEasyFraming) { if (pnd->bEasyFraming) {
if ((CHIP_DATA (pnd)->current_target->nm.nmt == NMT_DEP) || // If DEP mode switch (CHIP_DATA (pnd)->current_target->nm.nmt) {
((CHIP_DATA(pnd)->type == PN532) && (pnd->bAutoIso14443_4) && case NMT_DEP:
(CHIP_DATA (pnd)->current_target->nm.nmt == NMT_ISO14443A) && (CHIP_DATA (pnd)->current_target->nti.nai.btSak & SAK_ISO14443_4_COMPLIANT)) // If ISO14443-4 PICC emulation
) {
abtCmd[0] = TgSetData; abtCmd[0] = TgSetData;
break;
case NMT_ISO14443A:
if (CHIP_DATA (pnd)->current_target->nti.nai.btSak & SAK_ISO14443_4_COMPLIANT) {
// We are dealing with a ISO/IEC 14443-4 compliant target
if ((CHIP_DATA(pnd)->type == PN532) && (pnd->bAutoIso14443_4)) {
// We are using ISO/IEC 14443-4 PICC emulation capability from the PN532
abtCmd[0] = TgSetData;
break;
} else { } else {
// TODO Support EasyFraming for other cases by software // TODO Support EasyFraming for other cases by software
pnd->iLastError = ENOTIMPL; pnd->iLastError = ENOTIMPL;
return false; return false;
} }
}
default:
abtCmd[0] = TgResponseToInitiator;
break;
}
} else { } else {
abtCmd[0] = TgResponseToInitiator; abtCmd[0] = TgResponseToInitiator;
} }