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/*
* $Id: GCUSBTransport.c,v 1.5 2004-07-03 21:42:47 rousseau Exp $
* ifd-GemPC
*
* Created by JL Giraud <jl.giraud@free.fr> on Sun Nov 19 2000.
* Updated by Ludovic Rousseau <ludovic.rousseau@free.fr>, Oct 2001
*
* Transport level for the GemPC430 of Gemplus.
*
* License: See file COPYING
*
*/
#include <string.h>
#include "gempc_ifdhandler.h"
#include "Config.h"
#include "GCTransport.h"
#include "usbserial.h"
status_t GCSendCommand(DWORD Lun, DWORD nLengthIn,
const UCHAR pcBufferCmd[], PDWORD pnLengthOut, UCHAR pcBufferOut[])
{
UCHAR pctr_to_card_buffer[GC_TR_BUF_SIZE];
status_t creturn_value;
DWORD nlength;
creturn_value = STATUS_SUCCESS;
if (GC_TR_BUF_SIZE <= nLengthIn)
{
/* Buffer is too small (should not happen) */
creturn_value = STATUS_DEVICE_PROTOCOL_ERROR;
goto finally;
}
memcpy(pctr_to_card_buffer+1, pcBufferCmd, nLengthIn);
pctr_to_card_buffer[TR_OFFSET_LNG] = nLengthIn;
if (WriteUSB(Lun, nLengthIn+1, pctr_to_card_buffer) != STATUS_SUCCESS)
{
creturn_value = STATUS_DEVICE_PROTOCOL_ERROR;
goto finally;
}
nlength = sizeof(pctr_to_card_buffer);
if (ReadUSB(Lun, &nlength, pctr_to_card_buffer) != STATUS_SUCCESS)
{
creturn_value = STATUS_DEVICE_PROTOCOL_ERROR;
goto finally;
}
if ( nlength < 1 )
{
/* length byte not received */
creturn_value = STATUS_DEVICE_PROTOCOL_ERROR;
goto finally;
}
nlength--;
*pnLengthOut = (*pnLengthOut<nlength) ? *pnLengthOut : nlength;
memcpy(pcBufferOut, pctr_to_card_buffer+1, *pnLengthOut);
finally:
if ( creturn_value != STATUS_SUCCESS )
*pnLengthOut = 0;
/* Clear buffer */
bzero(pctr_to_card_buffer, sizeof(pctr_to_card_buffer));
return creturn_value;
} /* GCSendCommand */
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