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//-------------------------------------------------------------------------
//
// File: PORTIO.C
//
// Contains generic port access routines for I/O cards.
//
// Revisions:
// 02-24-93 KJB First.
// 03-22-93 KJB Reorged for stub function library.
// 03-25-93 JAP Fixed up typedef and prototype inconsistencies
// 04-05-93 KJB Added functions for word io. Changed PUCHAR to
// PBASE_REGISTER.
//
//-------------------------------------------------------------------------
#include CARDTXXX_H
//
// PortIOSet
//
// 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 PortIOSet(PBASE_REGISTER baseIoAddress, UCHAR mask)
{
UCHAR tmp;
PortIOGet(baseIoAddress,&tmp);
tmp = tmp | mask;
PortIOPut(baseIoAddress,tmp);
}
VOID PortIOSetWord(PBASE_REGISTER baseIoAddress, USHORT mask)
{
USHORT tmp;
PortIOGetWord(baseIoAddress,&tmp);
tmp = tmp | mask;
PortIOPutWord(baseIoAddress,tmp);
}
//
// PortIOClear
//
// 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 PortIOClear(PBASE_REGISTER baseIoAddress, UCHAR mask)
{
UCHAR tmp;
PortIOGet(baseIoAddress,&tmp);
tmp = tmp & (0xff ^ mask);
PortIOPut(baseIoAddress,tmp);
}
VOID PortIOClearWord(PBASE_REGISTER baseIoAddress, USHORT mask)
{
USHORT tmp;
PortIOGetWord(baseIoAddress,&tmp);
tmp = tmp & (0xff ^ mask);
PortIOPutWord(baseIoAddress,tmp);
}
//
// PortIOTest
//
// 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 PortIOTest(PBASE_REGISTER baseIoAddress, UCHAR mask)
{
UCHAR tmp;
PortIOGet(baseIoAddress,&tmp);
return (tmp & mask);
}
BOOLEAN PortIOTestWord(PBASE_REGISTER baseIoAddress, USHORT theval)
{
USHORT tmpw;
PortIOGetWord(baseIoAddress, &tmpw);
return tmpw & theval;
}
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