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| 1 | /* |
1 | /* |
| 2 | * Copyright (C) 2003 Josef Cejka |
2 | * Copyright (C) 2003 Josef Cejka |
| 3 | * Copyright (C) 2005 Jakub Jermar |
3 | * Copyright (C) 2005 Jakub Jermar |
| - | 4 | * Copyright (C) 2005 Jakub Vana |
|
| 4 | * All rights reserved. |
5 | * All rights reserved. |
| 5 | * |
6 | * |
| 6 | * Redistribution and use in source and binary forms, with or without |
7 | * Redistribution and use in source and binary forms, with or without |
| 7 | * modification, are permitted provided that the following conditions |
8 | * modification, are permitted provided that the following conditions |
| 8 | * are met: |
9 | * are met: |
| 9 | * |
10 | * |
| 10 | * - Redistributions of source code must retain the above copyright |
11 | * - Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
12 | * notice, this list of conditions and the following disclaimer. |
| 12 | * - Redistributions in binary form must reproduce the above copyright |
13 | * - Redistributions in binary form must reproduce the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer in the |
14 | * notice, this list of conditions and the following disclaimer in the |
| 14 | * documentation and/or other materials provided with the distribution. |
15 | * documentation and/or other materials provided with the distribution. |
| 15 | * - The name of the author may not be used to endorse or promote products |
16 | * - The name of the author may not be used to endorse or promote products |
| 16 | * derived from this software without specific prior written permission. |
17 | * derived from this software without specific prior written permission. |
| 17 | * |
18 | * |
| 18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
19 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
20 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
21 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
22 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
23 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
24 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
25 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
26 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
27 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
28 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 28 | */ |
29 | */ |
| 29 | 30 | ||
| 30 | #include <arch/drivers/keyboard.h> |
31 | #include <arch/drivers/keyboard.h> |
| 31 | #include <console/chardev.h> |
32 | #include <console/chardev.h> |
| 32 | #include <console/console.h> |
33 | #include <console/console.h> |
| 33 | #include <putchar.h> |
34 | #include <putchar.h> |
| 34 | #include <synch/spinlock.h> |
35 | #include <synch/spinlock.h> |
| 35 | #include <synch/waitq.h> |
36 | #include <synch/waitq.h> |
| 36 | #include <typedefs.h> |
37 | #include <typedefs.h> |
| 37 | #include <print.h> |
38 | #include <print.h> |
| 38 | 39 | ||
| 39 | static void keyboard_enable(void); |
40 | static void keyboard_enable(void); |
| 40 | static void keyboard_disable(void); |
41 | static void keyboard_disable(void); |
| 41 | 42 | ||
| 42 | static chardev_t kbrd; |
43 | static chardev_t kbrd; |
| 43 | static chardev_operations_t ops = { |
44 | static chardev_operations_t ops = { |
| 44 | .resume = keyboard_enable, |
45 | .resume = keyboard_enable, |
| 45 | .suspend = keyboard_disable |
46 | .suspend = keyboard_disable |
| 46 | }; |
47 | }; |
| 47 | 48 | ||
| 48 | 49 | ||
| 49 | int kb_disable; |
50 | int kb_disable; |
| 50 | 51 | ||
| 51 | 52 | ||
| 52 | /** Initialize keyboard subsystem. */ |
53 | /** Initialize keyboard subsystem. */ |
| 53 | void keyboard_init(void) |
54 | void keyboard_init(void) |
| 54 | { |
55 | { |
| 55 | chardev_initialize(&kbrd, &ops); |
56 | chardev_initialize(&kbrd, &ops); |
| 56 | stdin = &kbrd; |
57 | stdin = &kbrd; |
| 57 | kb_disable = 0; |
58 | kb_disable = false; |
| 58 | } |
59 | } |
| 59 | 60 | ||
| 60 | /** Process keyboard interrupt. */ |
61 | /** Process keyboard interrupt. */ |
| 61 | void keyboard(void) |
62 | void poll_keyboard(void) |
| 62 | { |
63 | { |
| 63 | if(kb_disable) return; |
64 | if(kb_disable) return; |
| 64 | char ch; |
65 | char ch; |
| 65 | 66 | ||
| 66 | ch = ski_getchar(); |
67 | ch = ski_getchar(); |
| 67 | if(ch==13) ch=10; |
68 | if(ch=='\r') ch='\n'; |
| 68 | if(ch) chardev_push_character(&kbrd, ch); |
69 | if(ch) chardev_push_character(&kbrd, ch); |
| 69 | 70 | ||
| 70 | } |
71 | } |
| 71 | 72 | ||
| 72 | /* Called from getc(). */ |
73 | /* Called from getc(). */ |
| 73 | void keyboard_enable(void) |
74 | void keyboard_enable(void) |
| 74 | { |
75 | { |
| 75 | kb_disable=0; |
76 | kb_disable=false; |
| 76 | } |
77 | } |
| 77 | 78 | ||
| 78 | /* Called from getc(). */ |
79 | /* Called from getc(). */ |
| 79 | void keyboard_disable(void) |
80 | void keyboard_disable(void) |
| 80 | { |
81 | { |
| 81 | kb_disable=1; |
82 | kb_disable=true; |
| 82 | } |
83 | } |
| 83 | 84 | ||