libgloss/mips/array-io.c

   1 /* array-io.c -- I/O code for the Array Tech RAID disk controller.
   2  *
   3  * Copyright (c) 1995 Cygnus Support
   4  *
   5  * The authors hereby grant permission to use, copy, modify, distribute,
   6  * and license this software and its documentation for any purpose, provided
   7  * that existing copyright notices are retained in all copies and that this
   8  * notice is included verbatim in any distributions. No written agreement,
   9  * license, or royalty fee is required for any of the authorized uses.
  10  * Modifications to this software may be copyrighted by their authors
  11  * and need not follow the licensing terms described here, provided that
  12  * the new terms are clearly indicated on the first page of each file where
  13  * they apply.
  14  */
  15 #include "mips.h"
  16
  17 /*
  18  * outbyte -- shove a byte out the serial port. We wait till the byte
  19  */
  20 int
  21 outbyte(byte)
  22      unsigned char byte;
  23 {
  24   return (PUTCHAR(byte));
  25 }
  26
  27 /*
  28  * inbyte -- get a byte from the serial port
  29  */
  30 unsigned char
  31 inbyte()
  32 {
  33   return ((unsigned char)GETCHAR);
  34 }
  35
  36 /*
  37  * led_putnum -- print a hex number on the LED. the value of num must be a byte.
  38
  39  *               The max number 15, since the front panel only has 4 LEDs.
  40  */
  41 void
  42 led_putnum ( num )
  43 char num;
  44 {
  45   print ("Sorry, unimplemented, using putnum instead\r\n");
  46   putnum (num);
  47 }
  48
  49 /*
  50  * zylons -- draw a rotating pattern. NOTE: this function never returns.
  51  */
  52 void
  53 zylons()
  54 {
  55   print ("Sorry, unimplemented\r\n");
  56 }
  57
  58 /*
  59  * delay -- a really gross, ugly hack for simple time delays
  60  */
  61 void
  62 delay (x)
  63      int x;
  64 {
  65   int  y = 17;
  66   while (x-- !=0)
  67     y = y^2;
  68 }