PortIO.h
#if !defined(PortIOH)
#define PortIOH
#ifndef SYSTEMH
#include "GSYSTEM.h"
#endif
/*
Title : PortIO
Author : Gaius Mulley
System : UNIX (gm2)
Date : Tue Jul 23 15:55:15 1996
Last edit : Tue Jul 23 15:55:15 1996
Description: provides a separate module for In and Out instructions.
*/
/*
SlowDownIO - linux mechanism for slowing down port accesses.
*/
extern void PortIO_SlowDownIO (void);
/*
In8 - returns a BYTE from port, Port.
*/
extern uchar PortIO_In8 (unsigned int Port);
/*
Out8 - sends a byte, Value, to port, Port.
*/
extern void PortIO_Out8 (unsigned int Port, uchar Value);
/*
In16 - returns a WORD from port, Port.
The top 16 bits are 0, the bottom 16 bits are assigned from
the value of the port.
*/
extern int PortIO_In16 (unsigned int Port);
/*
Out16 - sends a 16 bit value, Value, to port, Port.
Value is actually a 32 bit entity but the top
16 bits are ignored.
*/
extern void PortIO_Out16 (unsigned int Port, int Value);
/*
InS8 - reads, n, bytes in from port, Port, to address, a.
*/
extern void PortIO_InS8 (unsigned int Port, void *a, unsigned int n);
/*
InS16 - reads, n, 16 bit words in from port, Port, to address, a.
*/
extern void PortIO_InS16 (unsigned int Port, void *a, unsigned int n);
/*
InS32 - reads, n, 32 bit words in from port, Port, to address, a.
*/
extern void PortIO_InS32 (unsigned int Port, void *a, unsigned int n);
/*
OutS8 - writes, n, bytes to port, Port, from address, a.
*/
extern void PortIO_OutS8 (unsigned int Port, void *a, unsigned int n);
/*
OutS16 - writes, n, 16 bit words to port, Port, from address, a.
*/
extern void PortIO_OutS16 (unsigned int Port, void *a, unsigned int n);
/*
OutS32 - writes, n, 32 bit words to port, Port, from address, a.
*/
extern void PortIO_OutS32 (unsigned int Port, void *a, unsigned int n);
#endif
