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