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Implement abort for pn532_uart driver.

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This commit is contained in:
Romain Tartiere 2011-03-04 20:17:28 +00:00
parent 4b6060aeeb
commit 97dd0b63d7
2 changed files with 22 additions and 5 deletions
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25
libnfc/drivers/pn532_uart.c
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@ -48,7 +48,7 @@
// TODO Move this one level up for libnfc-1.6 // TODO Move this one level up for libnfc-1.6
static const byte_t ack_frame[] = { 0x00, 0x00, 0xff, 0x00, 0xff, 0x00 }; static const byte_t ack_frame[] = { 0x00, 0x00, 0xff, 0x00, 0xff, 0x00 };
void pn532_uart_ack (nfc_device_t * pnd); int pn532_uart_ack (nfc_device_t * pnd);
// void pn532_uart_wakeup (const nfc_device_spec_t nds); // void pn532_uart_wakeup (const nfc_device_spec_t nds);
struct pn532_uart_data { struct pn532_uart_data {
@ -223,8 +223,24 @@ pn532_uart_receive (nfc_device_t * pnd, byte_t * pbtData, const size_t szDataLen
{ {
byte_t abtRxBuf[5]; byte_t abtRxBuf[5];
size_t len; size_t len;
int abort_fd = 0;
switch (pnd->iLastCommand) {
case InAutoPoll:
case TgInitAsTarget:
case TgGetData:
abort_fd = pnd->iAbortFds[1];
break;
default:
break;
}
int res = uart_receive (((struct pn532_uart_data*)(pnd->driver_data))->port, abtRxBuf, 5, abort_fd);
if (abort_fd && (DEABORT == res)) {
return pn532_uart_ack (pnd);
}
int res = uart_receive (((struct pn532_uart_data*)(pnd->driver_data))->port, abtRxBuf, 5, 0);
if (res != 0) { if (res != 0) {
ERR ("%s", "Unable to receive data. (RX)"); ERR ("%s", "Unable to receive data. (RX)");
pnd->iLastError = res; pnd->iLastError = res;
@ -324,10 +340,11 @@ pn532_uart_receive (nfc_device_t * pnd, byte_t * pbtData, const size_t szDataLen
return len; return len;
} }
void int
pn532_uart_ack (nfc_device_t * pnd) pn532_uart_ack (nfc_device_t * pnd)
{ {
uart_send (((struct pn532_uart_data*)(pnd->driver_data))->port, ack_frame, sizeof (ack_frame)); ((struct pn53x_data*)(pnd->chip_data))->state = NORMAL;
return (0 == uart_send (((struct pn532_uart_data*)(pnd->driver_data))->port, ack_frame, sizeof (ack_frame))) ? 0 : -1;
} }
const struct nfc_driver_t pn532_uart_driver = { const struct nfc_driver_t pn532_uart_driver = {