void NFCReaderUnit::writeChipUid(std::shared_ptr<Chip> c,
const std::vector<uint8_t> &new_uid)
{
WriteUIDConfigGuard config_guard(*this);
assert(new_uid.size() == 4);
LOG(DEBUGS) << "Attempting to change the UID of a card. "
"This will work only on some non-original \"backup card\"";
std::vector<uint8_t> abtHalt = {0x50, 0x00, 0x00, 0x00};
uint8_t wakeUp[1] = {0x52};
// special unlock command
uint8_t abtUnlock1[1] = {0x40};
std::vector<uint8_t> abtUnlock2 = {0x43};
std::vector<uint8_t> abtWrite = {0xa0, 0x00, 0x5f, 0xb1};
std::vector<uint8_t> abtData = {0x01, 0x23, 0x45, 0x67, 0x00, 0x08, 0x04, 0x00, 0x46, 0x59, 0x25, 0x58, 0x49, 0x10, 0x23, 0x02, 0x23, 0xeb};
iso14443a_crc_append(&abtHalt[0], 2);
getDefaultNFCReaderCardAdapter()->sendCommand(abtHalt);
// write user-provided UID and compute the checksum
std::copy(new_uid.begin(), new_uid.end(), abtData.begin());
abtData[4] = abtData[0] ^ abtData[1] ^ abtData[2] ^ abtData[3];
iso14443a_crc_append(&abtData[0], 16);
transmitBits(abtUnlock1, 7);
getDefaultNFCReaderCardAdapter()->sendCommand(abtUnlock2);
getDefaultNFCReaderCardAdapter()->sendCommand(abtWrite);
getDefaultNFCReaderCardAdapter()->sendCommand(abtData);
getDefaultNFCReaderCardAdapter()->sendCommand(abtHalt);
transmitBits(wakeUp, 7);
// if we reach this point, the UID was changed. However since error are
// disabled, we a are very likely to reach this point...
// We need to fix up our internals to match the new UID.
nfc_target nfct = d_chips[c];
for (int i = 0; i < 4; ++i)
nfct.nti.nai.abtUid[i] = new_uid[i];
d_chips[c] = nfct;
c->setChipIdentifier(new_uid);
}
void CSoundCardRepeaterTXThread::transmitNetwork()
{
if (m_networkBuffer.isEmpty() && m_outBuffer.isEmpty()) {
#if defined(TX_TO_WAV_FILE)
if (m_writer != NULL) {
wxLogMessage(wxT("Closing the output WAV file"));
m_writer->close();
delete m_writer;
m_writer = NULL;
}
#endif
m_networkStarted = false;
m_networkRun = 0U;
// Switch off the transmitter?
if (m_tx) {
// If no hang time, switch off the TX immediately
if (m_hangTimer.getTimeout() == 0U) {
m_tx = false;
} else {
// Start the hang timer if not already running
if (!m_hangTimer.isRunning())
m_hangTimer.start();
if (m_hangTimer.isRunning() && m_hangTimer.hasExpired()) {
m_hangTimer.stop();
m_tx = false;
}
}
}
} else if (!m_networkBuffer.isEmpty() && m_outBuffer.isEmpty()) {
// Switch on the transmitter
m_networkStarted = true;
m_tx = true;
#if defined(TX_TO_WAV_FILE)
wxDateTime time;
time.SetToCurrent();
// This is for logging the output audio to a WAV file
wxString fileName = time.Format(wxT("%Y%m%d-%H%M%S.wav"));
CWAVFileWriter* writer = new CWAVFileWriter(fileName, DSTAR_RADIO_SAMPLE_RATE, 1U, 16U, DSTAR_RADIO_BLOCK_SIZE);
bool res = writer->open();
if (!res) {
wxLogError(wxT("Cannot open the output WAV file - %s"), fileName.c_str());
delete writer;
} else {
wxLogMessage(wxT("Opened the output WAV file - %s"), fileName.c_str());
m_writer = writer;
}
#endif
// Put quite a lot of data into the buffer to allow for slow downs
bool bits[DV_FRAME_LENGTH_BITS * 3U];
unsigned int length = m_networkBuffer.getData(bits, DV_FRAME_LENGTH_BITS * 3U);
transmitBits(bits, length);
} else if (!m_networkBuffer.isEmpty() && !m_outBuffer.isEmpty()) {
m_networkStarted = true;
m_tx = true;
bool bits[DV_FRAME_LENGTH_BITS];
unsigned int length = m_networkBuffer.getData(bits, DV_FRAME_LENGTH_BITS);
transmitBits(bits, length);
} else { // m_networkBuffer.isEmpty() && !m_outBuffer.isEmpty()
m_networkStarted = true;
m_tx = true;
}
if (m_pttDelay != NULL)
m_controller->setRadioTransmit(m_pttDelay->delay(m_tx));
else
m_controller->setRadioTransmit(m_tx);
}
