s16 emvPoll()
{
emvTypeA = 0;
emvTypeB = 0;
/* Poll as long as no cards are found. */
while (1)
{
if (emvStopRequestReceived())
return EMV_ERR_STOPPED;
if (emvTypeA != 0)
{
LOG("has a A card");
break;
}
/* Wait for t_p. */
emvHalSleepMilliseconds(EMV_T_P);
if (emvTypeACardPresent())
{
/* ISO14443-A card(s) found. */
emvTypeA = 1;
/* Send HLTA command. */
u8 hltaCommand[2] = { 0x50, 0x00 };
emvHalTransceive(hltaCommand, sizeof(hltaCommand), NULL, 0, NULL, EMV_HLTA_FDT, EMV_HAL_TRANSCEIVE_WITH_CRC);
}
if (emvTypeB != 0)
{
LOG("has a B card");
break;
}
/* Wait for t_p. */
emvHalSleepMilliseconds (EMV_T_P);
if (emvTypeBCardPresent())
{
/* ISO14443-B card(s) found. */
emvTypeB = 1;
}
}
return EMV_ERR_OK;
}
void emvPollSingleIteration()
{
emvTypeA = 0;
emvTypeB = 0;
emvHalSleepMilliseconds(EMV_T_P);
if (emvTypeACardPresent())
{
/* ISO14443-A card(s) found. */
emvTypeA = 1;
/* Send HLTA command. */
u8 hltaCommand[2] = { 0x50, 0x00 };
emvHalTransceive(hltaCommand, sizeof(hltaCommand), NULL, 0, NULL, EMV_HLTA_FDT, EMV_HAL_TRANSCEIVE_WITH_CRC);
}
emvHalSleepMilliseconds(EMV_T_P);
if (emvTypeBCardPresent())
{
/* ISO14443-B card(s) found. */
emvTypeB = 1;
}
}
s16 emvPollSingleIteration()
{
int count = 1;
emvTypeA = 0;
emvTypeB = 0;
while(count--)
{
//sxl 13/10/08 每100ms开一次场强，发送一次命令
emvHalActivateField(FALSE);
DelayMs(100);
emvHalActivateField(TRUE);
if (emvStopRequestReceived())
return EMV_ERR_STOPPED;
if (emvTypeA != 0)
{
return EMV_ERR_OK;
}
emvHalSleepMilliseconds(EMV_T_P);
//s_UartPrint("emvTypeACardPresent = %d\r\n", emvTypeACardPresent());//sxl
if (emvTypeACardPresent())
{
emvTypeA = 1;
LOG("has a A card");
/* Send HLTA command. */
u8 hltaCommand[2] = { 0x50, 0x00 };
emvHalTransceive(hltaCommand, sizeof(hltaCommand), NULL, 0, NULL, EMV_HLTA_FDT, EMV_HAL_TRANSCEIVE_WITH_CRC);
}
if (emvTypeB != 0)
{
;
return EMV_ERR_OK;
}
emvHalSleepMilliseconds (EMV_T_P);
//s_UartPrint("emvTypeBCardPresent = %d\r\n", emvTypeBCardPresent());//sxl
if (emvTypeBCardPresent())
{
emvTypeB = 1;
LOG("has a B card");
}
}
if (emvTypeB != 0 || emvTypeA != 0)
{
return EMV_ERR_OK;
}
return EMV_ERR_TIMEOUT;
}