RESPONSECODE IFDHPowerICC ( DWORD Lun, DWORD Action,
PUCHAR Atr, PDWORD AtrLength ) {
/* This function controls the power and reset signals of the smartcard reader
at the particular reader/slot specified by Lun.
Action - Action to be taken on the card.
IFD_POWER_UP - Power and reset the card if not done so
(store the ATR and return it and it's length).
IFD_POWER_DOWN - Power down the card if not done already
(Atr/AtrLength should
be zero'd)
IFD_RESET - Perform a quick reset on the card. If the card is not powered
power up the card. (Store and return the Atr/Length)
Atr - Answer to Reset of the card. The driver is responsible for caching
this value in case IFDHGetCapabilities is called requesting the ATR and it's
length. This should not exceed MAX_ATR_SIZE.
AtrLength - Length of the Atr. This should not exceed MAX_ATR_SIZE.
Notes:
Memory cards without an ATR should return IFD_SUCCESS on reset
but the Atr should be zero'd and the length should be zero
Reset errors should return zero for the AtrLength and return
IFD_ERROR_POWER_ACTION.
returns:
IFD_SUCCESS
IFD_ERROR_POWER_ACTION
IFD_COMMUNICATION_ERROR
IFD_NOT_SUPPORTED
*/
Log1(PCSC_LOG_DEBUG, "IFDHPowerICC");
RESPONSECODE rv;
switch (Action)
{
case IFD_RESET:
case IFD_POWER_UP:
readUID(AtrLength, Atr);
rv = IFD_SUCCESS;
break;
default:
*AtrLength = 0;
Atr = 0;
rv = IFD_NOT_SUPPORTED;
break;
}
return rv;
}
int main(void)
{
char uid[25]={0};
//All system related settings
SystemCoreClockUpdate(); //Set System MAIN Clock to 48Mhz
while(1)
{
readUID(uid);
}
}
RESPONSECODE IFDHGetCapabilities ( DWORD Lun, DWORD Tag,
PDWORD Length, PUCHAR Value ) {
/* This function should get the slot/card capabilities for a particular
slot/card specified by Lun. Again, if you have only 1 card slot and don't mind
loading a new driver for each reader then ignore Lun.
Tag - the tag for the information requested
example: TAG_IFD_ATR - return the Atr and it's size (required).
these tags are defined in ifdhandler.h
Length - the length of the returned data
Value - the value of the data
returns:
IFD_SUCCESS
IFD_ERROR_TAG
*/
Log1(PCSC_LOG_DEBUG, "IFDHGetCapabilities");
RESPONSECODE rv;
switch (Tag)
{
case TAG_IFD_ATR:
readUID(Length, Value);
rv = IFD_SUCCESS;
break;
case TAG_IFD_SLOTS_NUMBER:
(*Length) = 1;
(*Value) = IFDH_MAX_SLOTS;
rv = IFD_SUCCESS;
break;
case TAG_IFD_SIMULTANEOUS_ACCESS:
(*Length) = 1;
(*Value) = IFDH_MAX_READERS;
rv = IFD_SUCCESS;
break;
default:
(*Length) = 0;
rv = IFD_ERROR_TAG;
}
return rv;
}
