Source code of Windows XP (NT5)
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/*++
Copyright (c) 1997 SCM Microsystems, Inc.
Module Name:
StcCmd.c
Abstract:
Basic command functions for STC smartcard reader
Environment:
Revision History:
PP 01.19.1999 1.01 Modification for PC/SC
YL 1.00 Initial Version
--*/
#include "common.h"
#include "StcCmd.h"
#include "usbcom.h"
#include "stcusbnt.h"
const STC_REGISTER STCInitialize[] =
{
{ ADR_SC_CONTROL, 0x01, 0x00 }, // reset
{ ADR_CLOCK_CONTROL, 0x01, 0x01 },
{ ADR_CLOCK_CONTROL, 0x01, 0x03 },
{ ADR_UART_CONTROL, 0x01, 0x27 },
{ ADR_UART_CONTROL, 0x01, 0x4F },
{ ADR_IO_CONFIG, 0x01, 0x02 }, // 0x10 eva board
{ ADR_FIFO_CONFIG, 0x01, 0x81 },
{ ADR_INT_CONTROL, 0x01, 0x11 },
{ 0x0E, 0x01, 0xC0 },
{ 0x00, 0x00, 0x00 },
};
const STC_REGISTER STCClose[] =
{
{ ADR_INT_CONTROL, 0x01, 0x00 },
{ ADR_SC_CONTROL, 0x01, 0x00 }, // reset
{ ADR_UART_CONTROL, 0x01, 0x40 },
{ ADR_CLOCK_CONTROL, 0x01, 0x01 },
{ ADR_CLOCK_CONTROL, 0x01, 0x00 },
{ 0x00, 0x00, 0x00 },
};
NTSTATUS
STCResetInterface(
PREADER_EXTENSION ReaderExtension)
/*++
Description:
Arguments:
ReaderExtension context of call
Return Value:
--*/
{
NTSTATUS NtStatus = STATUS_SUCCESS;
DWORD dwETU;
dwETU = 0x7401 | 0x0080;
NtStatus=IFWriteSTCRegister(
ReaderExtension,
ADR_ETULENGTH15,
2,
(UCHAR *)&dwETU);
return(NtStatus);
}
NTSTATUS
STCReset(
PREADER_EXTENSION ReaderExtension,
UCHAR Device,
BOOLEAN WarmReset,
PUCHAR pATR,
PULONG pATRLength)
/*++
Description:
performs a reset of ICC
Arguments:
ReaderExtension context of call
Device device requested
WarmReset kind of ICC reset
pATR ptr to ATR buffer, NULL if no ATR required
pATRLength size of ATR buffer / length of ATR
Return Value:
STATUS_SUCCESS
STATUS_NO_MEDIA
STATUS_UNRECOGNIZED_MEDIA
error values from IFRead / IFWrite
--*/
{
NTSTATUS NTStatus = STATUS_SUCCESS;
// set UART to autolearn mode
NTStatus = STCInitUART( ReaderExtension, TRUE );
if( NTStatus == STATUS_SUCCESS)
{
//
// set default frequency for ATR
//
NTStatus = STCSetFDIV( ReaderExtension, FREQ_DIV );
if( NTStatus == STATUS_SUCCESS && ( !WarmReset ))
{
//
// deactivate contacts
//
NTStatus = STCPowerOff( ReaderExtension );
}
//
// set power to card
//
if( NTStatus == STATUS_SUCCESS)
{
NTStatus = STCPowerOn( ReaderExtension );
if( NTStatus == STATUS_SUCCESS)
{
NTStatus = STCReadATR( ReaderExtension, pATR, pATRLength );
}
}
}
if( NTStatus != STATUS_SUCCESS )
{
STCPowerOff( ReaderExtension );
}
return( NTStatus );
}
NTSTATUS
STCReadATR(
PREADER_EXTENSION ReaderExtension,
PUCHAR pATR,
PULONG pATRLen)
/*++
Description:
Read and analize the ATR
Arguments:
ReaderExtension context of call
pATR ptr to ATR buffer,
pATRLen size of ATR buffer / length of ATR
Return Value:
--*/
{
NTSTATUS NTStatus = STATUS_SUCCESS;
UCHAR T0_Yx,
T0_K, // number of historical bytes
Protocol;
ULONG ATRLen;
//
// set read timeout for ATR
//
ReaderExtension->ReadTimeout = 250; // only 250ms for this firs ATR
//
// read TS if active low reset
//
NTStatus = IFReadSTCData( ReaderExtension, pATR, 1 );
if( NTStatus == STATUS_IO_TIMEOUT )
{
ReaderExtension->ReadTimeout = 2500;
NTStatus = STCSetRST( ReaderExtension, TRUE );
if( NTStatus == STATUS_SUCCESS )
{
NTStatus = IFReadSTCData( ReaderExtension, pATR, 1 );
}
}
Protocol = PROTOCOL_TO;
ATRLen = 1;
if( NTStatus == STATUS_SUCCESS )
{
// T0
NTStatus = IFReadSTCData( ReaderExtension, pATR + ATRLen, 1 );
ATRLen++;
/* Convention management */
if ( pATR[0] == 0x03 ) /* Direct convention */
{
pATR[0] = 0x3F;
}
if ( ( pATR[0] != 0x3F ) && ( pATR[0] != 0x3B ) )
{
NTStatus = STATUS_DATA_ERROR;
}
if( NTStatus == STATUS_SUCCESS )
{
ULONG Request;
// number of historical bytes
T0_K = (UCHAR) ( pATR[ATRLen-1] & 0x0F );
// coding of TA, TB, TC, TD
T0_Yx = (UCHAR) ( pATR[ATRLen-1] & 0xF0 ) >> 4;
while(( NTStatus == STATUS_SUCCESS ) && T0_Yx )
{
UCHAR Mask;
// evaluate presence of TA, TB, TC, TD
Mask = T0_Yx;
Request = 0;
while( Mask )
{
if( Mask & 1 )
{
Request++;
}
Mask >>= 1;
}
NTStatus = IFReadSTCData( ReaderExtension, pATR + ATRLen, Request );
ATRLen += Request;
if( T0_Yx & TDx )
{
// high nibble of TD codes the next set of TA, TB, TC, TD
T0_Yx = ( pATR[ATRLen-1] & 0xF0 ) >> 4;
// low nibble of TD codes the protocol
Protocol = pATR[ATRLen-1] & 0x0F;
}
else
{
break;
}
}
if( NTStatus == STATUS_SUCCESS )
{
// historical bytes
NTStatus = IFReadSTCData( ReaderExtension, pATR + ATRLen, T0_K );
// check sum
if( NTStatus == STATUS_SUCCESS )
{
ATRLen += T0_K;
if( Protocol >= PROTOCOL_T1 )
{
NTStatus = IFReadSTCData( ReaderExtension, pATR + ATRLen, 1 );
if( NTStatus == STATUS_SUCCESS )
{
ATRLen++;
}
else if( NTStatus == STATUS_IO_TIMEOUT )
{
// some cards don't support the TCK
NTStatus = STATUS_SUCCESS;
}
}
}
}
}
}
if( NTStatus == STATUS_IO_TIMEOUT )
{
NTStatus = STATUS_UNRECOGNIZED_MEDIA;
}
if(( NTStatus == STATUS_SUCCESS ) && ( pATRLen != NULL ))
{
*pATRLen = ATRLen;
}
return( NTStatus );
}
NTSTATUS
STCPowerOff(
PREADER_EXTENSION ReaderExtension )
/*++
Description:
Deactivates the requested device
Arguments:
ReaderExtension context of call
Return Value:
STATUS_SUCCESS
error values from IFRead / IFWrite
--*/
{
NTSTATUS NTStatus = STATUS_SUCCESS;
UCHAR SCCtrl;
// clear SIM
SCCtrl=0x11;
NTStatus=IFWriteSTCRegister(
ReaderExtension,
ADR_INT_CONTROL,
1,
&SCCtrl);
SCCtrl = 0x00;
NTStatus = IFWriteSTCRegister( ReaderExtension, ADR_SC_CONTROL, 1, &SCCtrl );
return( NTStatus );
}
NTSTATUS
STCPowerOn(
PREADER_EXTENSION ReaderExtension )
/*++
Description:
Deactivates the requested device
Arguments:
ReaderExtension context of call
Return Value:
STATUS_SUCCESS
error values from IFRead / IFWrite
--*/
{
NTSTATUS NTStatus = STATUS_SUCCESS;
UCHAR SCCtrl,Byte;
Byte = 0x02;
NTStatus = IFWriteSTCRegister(
ReaderExtension,
ADR_IO_CONFIG,
1,
&Byte
);
SCCtrl = 0x40; // vcc
NTStatus = IFWriteSTCRegister( ReaderExtension, ADR_SC_CONTROL, 1, &SCCtrl );
if( NTStatus == STATUS_SUCCESS )
{
SCCtrl = 0x41; // vpp
NTStatus = IFWriteSTCRegister(
ReaderExtension,
ADR_SC_CONTROL,
1,
&SCCtrl
);
// set SIM
SCCtrl = 0x13;
NTStatus=IFWriteSTCRegister(
ReaderExtension,
ADR_INT_CONTROL,
1,
&SCCtrl);
if( NTStatus == STATUS_SUCCESS )
{
SCCtrl = 0xD1; // vcc, clk, io
NTStatus = IFWriteSTCRegister(
ReaderExtension,
ADR_SC_CONTROL,
1,
&SCCtrl
);
}
}
return( NTStatus );
}
NTSTATUS
STCSetRST(
PREADER_EXTENSION ReaderExtension,
BOOLEAN On)
/*++
Description:
Arguments:
ReaderExtension context of call
Return Value:
STATUS_SUCCESS
error values from IFRead / IFWrite
--*/
{
NTSTATUS NTStatus = STATUS_SUCCESS;
UCHAR SCCtrl = 0;
NTStatus = IFReadSTCRegister( ReaderExtension, ADR_SC_CONTROL, 1,&SCCtrl );
if( NTStatus == STATUS_SUCCESS )
{
if( On )
{
SCCtrl |= 0x20;
}
else
{
SCCtrl &= ~0x20;
}
NTStatus = IFWriteSTCRegister(
ReaderExtension,
ADR_SC_CONTROL,
1,
&SCCtrl
);
}
return(NTStatus);
}
NTSTATUS
STCConfigureSTC(
PREADER_EXTENSION ReaderExtension,
PSTC_REGISTER pConfiguration
)
{
NTSTATUS NTStatus = STATUS_SUCCESS;
UCHAR Value;
do
{
if( pConfiguration->Register == ADR_INT_CONTROL )
{
// Read interrupt status register to acknoledge wrong states
NTStatus = IFReadSTCRegister(
ReaderExtension,
ADR_INT_STATUS,
1,
&Value
);
}
Value = (UCHAR) pConfiguration->Value;
NTStatus = IFWriteSTCRegister(
ReaderExtension,
pConfiguration->Register,
pConfiguration->Size,
(PUCHAR)&pConfiguration->Value
);
if (NTStatus == STATUS_NO_MEDIA)
{
// ignore that no card is in the reader
NTStatus = STATUS_SUCCESS;
}
// delay to stabilize the oscilator clock:
if( pConfiguration->Register == ADR_CLOCK_CONTROL )
{
SysDelay( 100 );
}
pConfiguration++;
} while(NTStatus == STATUS_SUCCESS && pConfiguration->Size);
return NTStatus;
}
NTSTATUS
STCSetETU(
PREADER_EXTENSION ReaderExtension,
ULONG NewETU)
/*++
Description:
Arguments:
ReaderExtension context of call
Return Value:
STATUS_SUCCESS
error values from IFRead / IFWrite
--*/
{
NTSTATUS NTStatus = STATUS_DATA_ERROR;
UCHAR ETU[2];
SmartcardDebug(
DEBUG_TRACE,
("%s!STCSetETU %d\n",
DRIVER_NAME,
NewETU));
if( NewETU < 0x0FFF )
{
NTStatus = IFReadSTCRegister(
ReaderExtension,
ADR_ETULENGTH15,
2,
ETU);
if( NTStatus == STATUS_SUCCESS )
{
//
// save all RFU bits
//
ETU[1] = (UCHAR) NewETU;
ETU[0] = (UCHAR)(( ETU[0] & 0xF0 ) | ( NewETU >> 8 ));
NTStatus = IFWriteSTCRegister(
ReaderExtension,
ADR_ETULENGTH15,
2,
ETU);
}
}
return(NTStatus);
}
NTSTATUS
STCSetCGT(
PREADER_EXTENSION ReaderExtension,
ULONG NewCGT)
/*++
Description:
Arguments:
ReaderExtension context of call
Return Value:
STATUS_SUCCESS
error values from IFRead / IFWrite
--*/
{
NTSTATUS NTStatus = STATUS_DATA_ERROR;
UCHAR CGT[2];
SmartcardDebug(
DEBUG_TRACE,
("%s!STCSetCGT %d\n",
DRIVER_NAME,
NewCGT));
if( NewCGT < 0x01FF )
{
NTStatus = IFReadSTCRegister(
ReaderExtension,
ADR_CGT8,
2,
CGT);
if( NTStatus == STATUS_SUCCESS )
{
//
// save all RFU bits
//
CGT[1] = ( UCHAR )NewCGT;
CGT[0] = (UCHAR)(( CGT[0] & 0xFE ) | ( NewCGT >> 8 ));
NTStatus = IFWriteSTCRegister(
ReaderExtension,
ADR_CGT8,
2,
CGT);
}
}
return(NTStatus);
}
NTSTATUS
STCSetCWT(
PREADER_EXTENSION ReaderExtension,
ULONG NewCWT)
/*++
Description:
Arguments:
ReaderExtension context of call
Return Value:
STATUS_SUCCESS
error values from IFRead / IFWrite
--*/
{
NTSTATUS NTStatus = STATUS_SUCCESS;
UCHAR CWT[4];
SmartcardDebug(
DEBUG_TRACE,
("%s!STCSetCWT %d\n",
DRIVER_NAME,
NewCWT));
// little indians...
CWT[0] = (( PUCHAR )&NewCWT )[3];
CWT[1] = (( PUCHAR )&NewCWT )[2];
CWT[2] = (( PUCHAR )&NewCWT )[1];
CWT[3] = (( PUCHAR )&NewCWT )[0];
NTStatus = IFWriteSTCRegister(
ReaderExtension,
ADR_CWT31,
4,
CWT );
return(NTStatus);
}
NTSTATUS
STCSetBWT(
PREADER_EXTENSION ReaderExtension,
ULONG NewBWT)
/*++
Description:
Arguments:
ReaderExtension context of call
Return Value:
STATUS_SUCCESS
error values from IFRead / IFWrite
--*/
{
NTSTATUS NTStatus = STATUS_SUCCESS;
UCHAR BWT[4];
SmartcardDebug(
DEBUG_TRACE,
("%s!STCSetBWT %d\n",
DRIVER_NAME,
NewBWT));
// little indians...
BWT[0] = (( PUCHAR )&NewBWT )[3];
BWT[1] = (( PUCHAR )&NewBWT )[2];
BWT[2] = (( PUCHAR )&NewBWT )[1];
BWT[3] = (( PUCHAR )&NewBWT )[0];
NTStatus = IFWriteSTCRegister(
ReaderExtension,
ADR_BWT31,
4,
BWT );
return(NTStatus);
}
NTSTATUS
STCSetFDIV(
PREADER_EXTENSION ReaderExtension,
ULONG Factor)
/*++
Description:
Arguments:
ReaderExtension context of call
Return Value:
STATUS_SUCCESS
error values from IFRead / IFWrite
--*/
{
NTSTATUS NTStatus = STATUS_SUCCESS;
UCHAR DIV = 0;
NTStatus = IFReadSTCRegister(
ReaderExtension,
ADR_ETULENGTH15,
1,
&DIV );
if( NTStatus == STATUS_SUCCESS )
{
switch( Factor )
{
case 1:
DIV &= ~M_DIV0;
DIV &= ~M_DIV1;
break;
case 2:
DIV |= M_DIV0;
DIV &= ~M_DIV1;
break;
case 4 :
DIV &= ~M_DIV0;
DIV |= M_DIV1;
break;
case 8 :
DIV |= M_DIV0;
DIV |= M_DIV1;
break;
default :
NTStatus = STATUS_DATA_ERROR;
}
if( NTStatus == STATUS_SUCCESS )
{
NTStatus = IFWriteSTCRegister(
ReaderExtension,
ADR_ETULENGTH15,
1,
&DIV );
}
}
return(NTStatus);
}
NTSTATUS
STCInitUART(
PREADER_EXTENSION ReaderExtension,
BOOLEAN AutoLearn)
/*++
Description:
Arguments:
ReaderExtension context of call
Return Value:
STATUS_SUCCESS
error values from IFRead / IFWrite
--*/
{
NTSTATUS NTStatus = STATUS_SUCCESS;
UCHAR Value;
Value = AutoLearn ? 0x6F : 0x66;
NTStatus = IFWriteSTCRegister(
ReaderExtension,
ADR_UART_CONTROL,
1,
&Value );
return( NTStatus );
}
//---------------------------------------- END OF FILE ----------------------------------------