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Implement PN53x extended information frames with USB devices. (Fixes Issue 158)

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This commit is contained in:
Romuald Conty 2011-05-06 15:03:08 +00:00
parent 11a91af749
commit 805d738b24
3 changed files with 12 additions and 3 deletions
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2
libnfc/drivers/arygon.c
View file

@ -324,7 +324,7 @@ arygon_tama_receive (nfc_device_t * pnd, byte_t * pbtData, const size_t szDataLe
return -1;
} else if ((0xff == abtRxBuf[3]) && (0xff == abtRxBuf[4])) {
// Extended frame
// FIXME: Code this
// ARYGON devices does not support extended frame sending
abort ();
} else {
// Normal frame

1
libnfc/drivers/pn532_uart.c
View file

@ -309,6 +309,7 @@ pn532_uart_receive (nfc_device_t * pnd, byte_t * pbtData, const size_t szDataLen
} else if ((0xff == abtRxBuf[3]) && (0xff == abtRxBuf[4])) {
// Extended frame
pnd->iLastError = uart_receive (DRIVER_DATA(pnd)->port, abtRxBuf, 3, 0);
if (pnd->iLastError) return -1;
// (abtRxBuf[0] << 8) + abtRxBuf[1] (LEN) include TFI + (CC+1)
len = (abtRxBuf[0] << 8) + abtRxBuf[1] - 2;

12
libnfc/drivers/pn53x_usb.c
View file

@ -461,8 +461,16 @@ read:
return -1;
} else if ((0xff == abtRxBuf[offset]) && (0xff == abtRxBuf[offset + 1])) {
// Extended frame
// FIXME: Code this
abort ();
offset += 2;
// (abtRxBuf[offset] << 8) + abtRxBuf[offset + 1] (LEN) include TFI + (CC+1)
len = (abtRxBuf[offset] << 8) + abtRxBuf[offset + 1] - 2;
if (((abtRxBuf[offset] + abtRxBuf[offset + 1] + abtRxBuf[offset + 2]) % 256) != 0) {
// TODO: Retry
ERR ("%s", "Length checksum mismatch");
pnd->iLastError = DEIO;
return -1;
}
offset += 3;
} else {
// Normal frame