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DEVELOPING A USB SMARTCARD READER WITH ST7SCR

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void CcidClassRequestAbort(void)

This function is called from the USER_USB_Setup() function to process an Abort request.

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unsigned char PC_to_RDR_IccPowerOn(void)

This function verifies the PC_TO_RDR_ICCPOWERON command format and calls the

IFD_IccPowerOn() function (from Interface Device level). If IFD_IccPowerOn() returns no

error, the message header is filled with the ATR length. This PC_to_RDR function returns an

error code.

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unsigned char PC_to_RDR_IccPowerOff(void)

This function verifies the PC_TO_RDR_ICCPOWEROFF command format, switches off the

smartcard power supply and returns the NOERROR code.

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unsigned char PC_to_RDR_GetSlotStatus(void)

This function verifies the PC_TO_RDR_GETSLOTSTATUS command format, verifies the slot

hardware state and returns the corresponding error code.

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unsigned char PC_to_RDR_XfrBlock(void)

This function verifies the PC_TO_RDR_XFRBLOCK command format, checks the slot status

and returns an error if needed. If there is no error, it calls the IFD_XfrBlock() function (from the

Interface Device level). The message buffer contains the data to be transferred and is updated

by this IFD function. This PC_to_RDR function returns an error code.

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unsigned char PC_to_RDR_GetParameters(void)

This function verifies the PC_TO_RDR_GETPARAMETERS command format, checks the

slot hardware state and returns the corresponding error code.

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unsigned char PC_to_RDR_ResetParameters(void)

This function verifies the PC_TO_RDR_RESETPARAMETERS command format, fills the

m e ssage buffe r w ith the default v a lues of the r eader par a m e ters and c a lls the

IFD_SetParameters() function (from the Interface Device level). This PC_to_RDR function re-

turns an error code.

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unsigned char PC_to_RDR_SetParameters(void)

This function verifies the PC_TO_RDR_SETPARAMETERS command format and calls the

IFD_SetParameters() function (from the Interface Device level). This PC_to_RDR function re-

turns an error code.