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/* w89k-io.c -- I/O code for the Winbond Cougar board.
*
* Copyright (c) 1995 Cygnus Support
*
* The authors hereby grant permission to use, copy, modify, distribute,
* and license this software and its documentation for any purpose, provided
* that existing copyright notices are retained in all copies and that this
* notice is included verbatim in any distributions. No written agreement,
* license, or royalty fee is required for any of the authorized uses.
* Modifications to this software may be copyrighted by their authors
* and need not follow the licensing terms described here, provided that
* the new terms are clearly indicated on the first page of each file where
* they apply.
*/
#include "w89k.h"
void zylons();
void led_putnum();
void delay();
/*
* outbyte -- shove a byte out the serial port. We wait till the byte
*/
void
outbyte (byte)
unsigned char byte;
{
while ((inp(COM1_LSR) & TRANSMIT) == 0x0) ;
outp (COM1_DATA, byte);
return;
}
/*
* inbyte -- get a byte from the serial port
*/
unsigned char
inbyte ()
{
while ((inp(COM1_LSR) & RECEIVE) == 0x0) ;
return (inp(COM1_DATA));
}
/*
* led_putnum -- print a hex number on the LED. the value of num must be a byte.
* The max number 15, since the front panel only has 4 LEDs.
*/
void
led_putnum ( num )
char num;
{
print ("Sorry, no LED's on the WinBond W89k board, using putnum instead\r\n");
putnum (num);
}
/*
* zylons -- draw a rotating pattern. NOTE: this function never returns.
*/
void
zylons()
{
print ("Sorry, no LED's on the WinBond W89k board\r\n");
}
void
delay (x)
int x;
{
int y = 17;
while (x-- !=0)
y = y^2;
}
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