static int
pn532_uart_send(nfc_device *pnd, const uint8_t *pbtData, const size_t szData, int timeout)
{
int res = 0;
// Before sending anything, we need to discard from any junk bytes
uart_flush_input(DRIVER_DATA(pnd)->port);
switch (CHIP_DATA(pnd)->power_mode) {
case LOWVBAT: {
/** PN532C106 wakeup. */
if ((res = pn532_uart_wakeup(pnd)) < 0) {
return res;
}
// According to PN532 application note, C106 appendix: to go out Low Vbat mode and enter in normal mode we need to send a SAMConfiguration command
if ((res = pn532_SAMConfiguration(pnd, PSM_NORMAL, 1000)) < 0) {
return res;
}
}
break;
case POWERDOWN: {
if ((res = pn532_uart_wakeup(pnd)) < 0) {
return res;
}
}
break;
case NORMAL:
// Nothing to do :)
break;
};
uint8_t abtFrame[PN532_BUFFER_LEN] = { 0x00, 0x00, 0xff }; // Every packet must start with "00 00 ff"
size_t szFrame = 0;
if ((res = pn53x_build_frame(abtFrame, &szFrame, pbtData, szData)) < 0) {
pnd->last_error = res;
return pnd->last_error;
}
res = uart_send(DRIVER_DATA(pnd)->port, abtFrame, szFrame, timeout);
if (res != 0) {
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_ERROR, "%s", "Unable to transmit data. (TX)");
pnd->last_error = res;
return pnd->last_error;
}
uint8_t abtRxBuf[6];
res = uart_receive(DRIVER_DATA(pnd)->port, abtRxBuf, 6, 0, timeout);
if (res != 0) {
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_DEBUG, "%s", "Unable to read ACK");
pnd->last_error = res;
return pnd->last_error;
}
if (pn53x_check_ack_frame(pnd, abtRxBuf, sizeof(abtRxBuf)) == 0) {
// The PN53x is running the sent command
} else {
return pnd->last_error;
}
return NFC_SUCCESS;
}
static int
arygon_tama_send(nfc_device *pnd, const uint8_t *pbtData, const size_t szData, int timeout)
{
int res = 0;
// Before sending anything, we need to discard from any junk bytes
uart_flush_input(DRIVER_DATA(pnd)->port, false);
uint8_t abtFrame[ARYGON_TX_BUFFER_LEN] = { DEV_ARYGON_PROTOCOL_TAMA, 0x00, 0x00, 0xff }; // Every packet must start with "0x32 0x00 0x00 0xff"
size_t szFrame = 0;
if (szData > PN53x_NORMAL_FRAME__DATA_MAX_LEN) {
// ARYGON Reader with PN532 equipped does not support extended frame (bug in ARYGON firmware?)
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_DEBUG, "ARYGON device does not support more than %d bytes as payload (requested: %" PRIdPTR ")", PN53x_NORMAL_FRAME__DATA_MAX_LEN, szData);
pnd->last_error = NFC_EDEVNOTSUPP;
return pnd->last_error;
}
if ((res = pn53x_build_frame(abtFrame + 1, &szFrame, pbtData, szData)) < 0) {
pnd->last_error = res;
return pnd->last_error;
}
if ((res = uart_send(DRIVER_DATA(pnd)->port, abtFrame, szFrame + 1, timeout)) != 0) {
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_ERROR, "%s", "Unable to transmit data. (TX)");
pnd->last_error = res;
return pnd->last_error;
}
uint8_t abtRxBuf[PN53x_ACK_FRAME__LEN];
if ((res = uart_receive(DRIVER_DATA(pnd)->port, abtRxBuf, sizeof(abtRxBuf), 0, timeout)) != 0) {
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_ERROR, "%s", "Unable to read ACK");
pnd->last_error = res;
return pnd->last_error;
}
if (pn53x_check_ack_frame(pnd, abtRxBuf, sizeof(abtRxBuf)) == 0) {
// The PN53x is running the sent command
} else if (0 == memcmp(arygon_error_unknown_mode, abtRxBuf, sizeof(abtRxBuf))) {
log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_ERROR, "%s", "Bad frame format.");
// We have already read 6 bytes and arygon_error_unknown_mode is 10 bytes long
// so we have to read 4 remaining bytes to be synchronized at the next receiving pass.
pnd->last_error = uart_receive(DRIVER_DATA(pnd)->port, abtRxBuf, 4, 0, timeout);
return pnd->last_error;
} else {
return pnd->last_error;
}
return NFC_SUCCESS;
}
static int
pn53x_usb_send(nfc_device *pnd, const uint8_t *pbtData, const size_t szData, const int timeout)
{
uint8_t abtFrame[PN53X_USB_BUFFER_LEN] = { 0x00, 0x00, 0xff }; // Every packet must start with "00 00 ff"
size_t szFrame = 0;
int res = 0;
if ((res = pn53x_build_frame(abtFrame, &szFrame, pbtData, szData)) < 0) {
pnd->last_error = res;
return pnd->last_error;
}
if ((res = pn53x_usb_bulk_write(DRIVER_DATA(pnd), abtFrame, szFrame, timeout)) < 0) {
pnd->last_error = res;
return pnd->last_error;
}
uint8_t abtRxBuf[PN53X_USB_BUFFER_LEN];
if ((res = pn53x_usb_bulk_read(DRIVER_DATA(pnd), abtRxBuf, sizeof(abtRxBuf), timeout)) < 0) {
// try to interrupt current device state
pn53x_usb_ack(pnd);
pnd->last_error = res;
return pnd->last_error;
}
if (pn53x_check_ack_frame(pnd, abtRxBuf, res) == 0) {
// The PN53x is running the sent command
} else {
// For some reasons (eg. send another command while a previous one is
// running), the PN533 sometimes directly replies the response packet
// instead of ACK frame, so we send a NACK frame to force PN533 to resend
// response packet. With this hack, the nextly executed function (ie.
// pn53x_usb_receive()) will be able to retreive the correct response
// packet.
// FIXME Sony reader is also affected by this bug but NACK is not supported
if ((res = pn53x_usb_bulk_write(DRIVER_DATA(pnd), (uint8_t *)pn53x_nack_frame, sizeof(pn53x_nack_frame), timeout)) < 0) {
pnd->last_error = res;
// try to interrupt current device state
pn53x_usb_ack(pnd);
return pnd->last_error;
}
}
return NFC_SUCCESS;
}