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 emvTypeBCardPresent()
{
u8 wupb[3];
u8 atqb[13+2];
s8 error = EMV_HAL_ERR_OK;
u32 responseLength = 0;
emvHalSetStandard(EMV_HAL_TYPE_B);
emvHalSetErrorHandling(EMV_HAL_PREACTIVATION_ERROR_HANDLING);
/* Setup WUPB command according to section 6.3.1 of the EMV standard. */
wupb[0] = 0x05;
wupb[1] = 0x00;
wupb[2] = 0x08;
error = emvHalTransceive(wupb, sizeof(wupb), atqb, sizeof(atqb), &responseLength, EMV_FWT_ATQB_PCD, EMV_HAL_TRANSCEIVE_WITH_CRC);
/* Any response shall be taken as a card presence indication. */
if (EMV_HAL_ERR_TIMEOUT == error)
return 0;
else
return 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;
}
