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PN532_UART: prevent from blocking when device doesn't reply correctly to wakeup command.

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This commit is contained in:
Romuald Conty 2010-04-20 15:05:57 +00:00
parent e3ff11eb46
commit 942dcfa631
1 changed files with 2 additions and 2 deletions
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4
libnfc/drivers/pn532_uart.c
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@ -233,7 +233,6 @@ bool pn532_uart_transceive(const nfc_device_spec_t nds, const byte_t* pbtTx, con
print_hex(abtRxBuf,szRxBufLen); print_hex(abtRxBuf,szRxBufLen);
#endif #endif
const byte_t pn53x_ack_frame[] = { 0x00,0x00,0xff,0x00,0xff,0x00 }; const byte_t pn53x_ack_frame[] = { 0x00,0x00,0xff,0x00,0xff,0x00 };
const byte_t pn53x_nack_frame[] = { 0x00,0x00,0xff,0xff,0x00,0x00 }; const byte_t pn53x_nack_frame[] = { 0x00,0x00,0xff,0xff,0x00,0x00 };
if(szRxBufLen >= sizeof(pn53x_ack_frame)) { if(szRxBufLen >= sizeof(pn53x_ack_frame)) {
@ -298,7 +297,8 @@ pn532_uart_wakeup(const nfc_device_spec_t nds)
#endif #endif
uart_send((serial_port)nds, pncmd_pn532c106_wakeup, sizeof(pncmd_pn532c106_wakeup)); uart_send((serial_port)nds, pncmd_pn532c106_wakeup, sizeof(pncmd_pn532c106_wakeup));
while (!uart_receive((serial_port)nds,abtRx,&szRxLen)) { if(!uart_receive((serial_port)nds,abtRx,&szRxLen)) {
return false;
} }
#ifdef DEBUG #ifdef DEBUG
printf(" RX: "); printf(" RX: ");