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Rev | Author | Line No. | Line |
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520 | vana | 1 | /* |
2 | * Copyright (C) 2003 Josef Cejka |
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3 | * Copyright (C) 2005 Jakub Jermar |
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521 | vana | 4 | * Copyright (C) 2005 Jakub Vana |
520 | vana | 5 | * All rights reserved. |
6 | * |
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7 | * Redistribution and use in source and binary forms, with or without |
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8 | * modification, are permitted provided that the following conditions |
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9 | * are met: |
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10 | * |
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11 | * - Redistributions of source code must retain the above copyright |
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12 | * notice, this list of conditions and the following disclaimer. |
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13 | * - Redistributions in binary form must reproduce the above copyright |
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14 | * notice, this list of conditions and the following disclaimer in the |
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15 | * documentation and/or other materials provided with the distribution. |
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16 | * - The name of the author may not be used to endorse or promote products |
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17 | * derived from this software without specific prior written permission. |
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18 | * |
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19 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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20 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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21 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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22 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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23 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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24 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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25 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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26 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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27 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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28 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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29 | */ |
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30 | |||
31 | #include <arch/drivers/keyboard.h> |
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32 | #include <console/chardev.h> |
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33 | #include <console/console.h> |
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34 | #include <putchar.h> |
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35 | #include <synch/spinlock.h> |
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36 | #include <synch/waitq.h> |
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37 | #include <typedefs.h> |
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38 | #include <print.h> |
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39 | |||
40 | static void keyboard_enable(void); |
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41 | static void keyboard_disable(void); |
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42 | |||
43 | static chardev_t kbrd; |
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44 | static chardev_operations_t ops = { |
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45 | .resume = keyboard_enable, |
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46 | .suspend = keyboard_disable |
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47 | }; |
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48 | |||
49 | |||
50 | int kb_disable; |
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51 | |||
52 | |||
53 | /** Initialize keyboard subsystem. */ |
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54 | void keyboard_init(void) |
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55 | { |
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56 | chardev_initialize(&kbrd, &ops); |
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57 | stdin = &kbrd; |
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521 | vana | 58 | kb_disable = false; |
520 | vana | 59 | } |
60 | |||
61 | /** Process keyboard interrupt. */ |
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521 | vana | 62 | void poll_keyboard(void) |
520 | vana | 63 | { |
64 | if(kb_disable) return; |
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65 | char ch; |
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66 | |||
67 | ch = ski_getchar(); |
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521 | vana | 68 | if(ch=='\r') ch='\n'; |
520 | vana | 69 | if(ch) chardev_push_character(&kbrd, ch); |
70 | |||
71 | } |
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72 | |||
73 | /* Called from getc(). */ |
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74 | void keyboard_enable(void) |
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75 | { |
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521 | vana | 76 | kb_disable=false; |
520 | vana | 77 | } |
78 | |||
79 | /* Called from getc(). */ |
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80 | void keyboard_disable(void) |
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81 | { |
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521 | vana | 82 | kb_disable=true; |
520 | vana | 83 | } |