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#ifdef i386
//------------------------------------------------------------------------
//
// File: PORTMEM.C
//
// Contains generic memory mapped port access routines.
//
// Revisions:
// 01-08-93 KJB First.
// 02-25-93 KJB Renamed routines from CardPort to PortMem.
//
//------------------------------------------------------------------------
#include CARDTXXX_H
//
// PortMemSet
//
// This routine sets a mask on a certain port. It or's the mask with
// the value currently at the port. Works only for ports where all bits
// are readable and writable.
//
VOID PortMemSet (PUCHAR baseIoAddress, UCHAR mask)
{
UCHAR tmp;
PortMemGet (baseIoAddress, &tmp);
tmp = tmp | mask;
PortMemPut (baseIoAddress, tmp);
}
//
// PortMemClear
//
// This routine clears a mask on a certain port. It and's the inverse with
// the value currently at the port. Works only for ports where all bits
// are readable and writable.
//
VOID PortMemClear (PUCHAR baseIoAddress, UCHAR mask)
{
UCHAR tmp;
PortMemGet (baseIoAddress, &tmp);
tmp = tmp & (0xff ^ mask);
PortMemPut (baseIoAddress, tmp);
}
//
// PortMemTest
//
// This routine clears a mask on a certain port. It and's the mask with
// the value currently at the port. This result is returned.
//
BOOLEAN PortMemTest (PUCHAR baseIoAddress, UCHAR mask)
{
UCHAR tmp;
PortMemGet (baseIoAddress, &tmp);
return (tmp & mask);
}
#endif
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