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1 | /* |
1 | /* |
2 | * Copyright (C) 2001-2004 Jakub Jermar |
2 | * Copyright (C) 2001-2004 Jakub Jermar |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | #include <arch/i8042.h> |
29 | #include <arch/i8042.h> |
30 | #include <arch/i8259.h> |
30 | #include <arch/i8259.h> |
31 | #include <arch/interrupt.h> |
31 | #include <arch/interrupt.h> |
32 | #include <cpu.h> |
32 | #include <cpu.h> |
33 | #include <arch/asm.h> |
33 | #include <arch/asm.h> |
34 | #include <arch.h> |
34 | #include <arch.h> |
35 | #include <print.h> |
35 | #include <print.h> |
36 | #include <synch/spinlock.h> |
36 | #include <synch/spinlock.h> |
37 | #include <typedefs.h> |
37 | #include <typedefs.h> |
38 | #include <console/chardev.h> |
38 | #include <console/chardev.h> |
39 | #include <console/console.h> |
39 | #include <console/console.h> |
40 | #include <macros.h> |
40 | #include <macros.h> |
41 | #include <interrupt.h> |
41 | #include <interrupt.h> |
42 | 42 | ||
43 | /** |
43 | /** |
44 | * i8042 processor driver. |
44 | * i8042 processor driver. |
45 | * It takes care of low-level keyboard functions. |
45 | * It takes care of low-level keyboard functions. |
46 | */ |
46 | */ |
47 | 47 | ||
48 | #define i8042_DATA 0x60 |
48 | #define i8042_DATA 0x60 |
49 | #define i8042_STATUS 0x64 |
49 | #define i8042_STATUS 0x64 |
50 | 50 | ||
51 | /** Keyboard commands. */ |
51 | /** Keyboard commands. */ |
52 | #define KBD_ENABLE 0xf4 |
52 | #define KBD_ENABLE 0xf4 |
53 | #define KBD_DISABLE 0xf5 |
53 | #define KBD_DISABLE 0xf5 |
54 | #define KBD_ACK 0xfa |
54 | #define KBD_ACK 0xfa |
55 | 55 | ||
56 | #define SPECIAL '?' |
56 | #define SPECIAL '?' |
57 | #define KEY_RELEASE 0x80 |
57 | #define KEY_RELEASE 0x80 |
58 | 58 | ||
59 | static void key_released(__u8 sc); |
59 | static void key_released(__u8 sc); |
60 | static void key_pressed(__u8 sc); |
60 | static void key_pressed(__u8 sc); |
61 | 61 | ||
62 | #define PRESSED_SHIFT (1<<0) |
62 | #define PRESSED_SHIFT (1<<0) |
63 | #define PRESSED_CAPSLOCK (1<<1) |
63 | #define PRESSED_CAPSLOCK (1<<1) |
64 | #define LOCKED_CAPSLOCK (1<<0) |
64 | #define LOCKED_CAPSLOCK (1<<0) |
65 | 65 | ||
66 | static spinlock_t keylock; /**< keylock protects keyflags and lockflags. */ |
66 | SPINLOCK_INITIALIZE(keylock); /**< keylock protects keyflags and lockflags. */ |
67 | static volatile int keyflags; /**< Tracking of multiple keypresses. */ |
67 | static volatile int keyflags; /**< Tracking of multiple keypresses. */ |
68 | static volatile int lockflags; /**< Tracking of multiple keys lockings. */ |
68 | static volatile int lockflags; /**< Tracking of multiple keys lockings. */ |
69 | 69 | ||
70 | static void i8042_suspend(chardev_t *); |
70 | static void i8042_suspend(chardev_t *); |
71 | static void i8042_resume(chardev_t *); |
71 | static void i8042_resume(chardev_t *); |
72 | 72 | ||
73 | static chardev_t kbrd; |
73 | static chardev_t kbrd; |
74 | static chardev_operations_t ops = { |
74 | static chardev_operations_t ops = { |
75 | .suspend = i8042_suspend, |
75 | .suspend = i8042_suspend, |
76 | .resume = i8042_resume |
76 | .resume = i8042_resume |
77 | }; |
77 | }; |
78 | 78 | ||
79 | /** Primary meaning of scancodes. */ |
79 | /** Primary meaning of scancodes. */ |
80 | static char sc_primary_map[] = { |
80 | static char sc_primary_map[] = { |
81 | SPECIAL, /* 0x00 */ |
81 | SPECIAL, /* 0x00 */ |
82 | SPECIAL, /* 0x01 - Esc */ |
82 | SPECIAL, /* 0x01 - Esc */ |
83 | '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=', |
83 | '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=', |
84 | '\b', /* 0x0e - Backspace */ |
84 | '\b', /* 0x0e - Backspace */ |
85 | '\t', 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']', '\n', |
85 | '\t', 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']', '\n', |
86 | SPECIAL, /* 0x1d - LCtrl */ |
86 | SPECIAL, /* 0x1d - LCtrl */ |
87 | 'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'', |
87 | 'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'', |
88 | '`', |
88 | '`', |
89 | SPECIAL, /* 0x2a - LShift */ |
89 | SPECIAL, /* 0x2a - LShift */ |
90 | '\\', |
90 | '\\', |
91 | 'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/', |
91 | 'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/', |
92 | SPECIAL, /* 0x36 - RShift */ |
92 | SPECIAL, /* 0x36 - RShift */ |
93 | '*', |
93 | '*', |
94 | SPECIAL, /* 0x38 - LAlt */ |
94 | SPECIAL, /* 0x38 - LAlt */ |
95 | ' ', |
95 | ' ', |
96 | SPECIAL, /* 0x3a - CapsLock */ |
96 | SPECIAL, /* 0x3a - CapsLock */ |
97 | SPECIAL, /* 0x3b - F1 */ |
97 | SPECIAL, /* 0x3b - F1 */ |
98 | SPECIAL, /* 0x3c - F2 */ |
98 | SPECIAL, /* 0x3c - F2 */ |
99 | SPECIAL, /* 0x3d - F3 */ |
99 | SPECIAL, /* 0x3d - F3 */ |
100 | SPECIAL, /* 0x3e - F4 */ |
100 | SPECIAL, /* 0x3e - F4 */ |
101 | SPECIAL, /* 0x3f - F5 */ |
101 | SPECIAL, /* 0x3f - F5 */ |
102 | SPECIAL, /* 0x40 - F6 */ |
102 | SPECIAL, /* 0x40 - F6 */ |
103 | SPECIAL, /* 0x41 - F7 */ |
103 | SPECIAL, /* 0x41 - F7 */ |
104 | SPECIAL, /* 0x42 - F8 */ |
104 | SPECIAL, /* 0x42 - F8 */ |
105 | SPECIAL, /* 0x43 - F9 */ |
105 | SPECIAL, /* 0x43 - F9 */ |
106 | SPECIAL, /* 0x44 - F10 */ |
106 | SPECIAL, /* 0x44 - F10 */ |
107 | SPECIAL, /* 0x45 - NumLock */ |
107 | SPECIAL, /* 0x45 - NumLock */ |
108 | SPECIAL, /* 0x46 - ScrollLock */ |
108 | SPECIAL, /* 0x46 - ScrollLock */ |
109 | '7', '8', '9', '-', |
109 | '7', '8', '9', '-', |
110 | '4', '5', '6', '+', |
110 | '4', '5', '6', '+', |
111 | '1', '2', '3', |
111 | '1', '2', '3', |
112 | '0', '.', |
112 | '0', '.', |
113 | SPECIAL, /* 0x54 - Alt-SysRq */ |
113 | SPECIAL, /* 0x54 - Alt-SysRq */ |
114 | SPECIAL, /* 0x55 - F11/F12/PF1/FN */ |
114 | SPECIAL, /* 0x55 - F11/F12/PF1/FN */ |
115 | SPECIAL, /* 0x56 - unlabelled key next to LAlt */ |
115 | SPECIAL, /* 0x56 - unlabelled key next to LAlt */ |
116 | SPECIAL, /* 0x57 - F11 */ |
116 | SPECIAL, /* 0x57 - F11 */ |
117 | SPECIAL, /* 0x58 - F12 */ |
117 | SPECIAL, /* 0x58 - F12 */ |
118 | SPECIAL, /* 0x59 */ |
118 | SPECIAL, /* 0x59 */ |
119 | SPECIAL, /* 0x5a */ |
119 | SPECIAL, /* 0x5a */ |
120 | SPECIAL, /* 0x5b */ |
120 | SPECIAL, /* 0x5b */ |
121 | SPECIAL, /* 0x5c */ |
121 | SPECIAL, /* 0x5c */ |
122 | SPECIAL, /* 0x5d */ |
122 | SPECIAL, /* 0x5d */ |
123 | SPECIAL, /* 0x5e */ |
123 | SPECIAL, /* 0x5e */ |
124 | SPECIAL, /* 0x5f */ |
124 | SPECIAL, /* 0x5f */ |
125 | SPECIAL, /* 0x60 */ |
125 | SPECIAL, /* 0x60 */ |
126 | SPECIAL, /* 0x61 */ |
126 | SPECIAL, /* 0x61 */ |
127 | SPECIAL, /* 0x62 */ |
127 | SPECIAL, /* 0x62 */ |
128 | SPECIAL, /* 0x63 */ |
128 | SPECIAL, /* 0x63 */ |
129 | SPECIAL, /* 0x64 */ |
129 | SPECIAL, /* 0x64 */ |
130 | SPECIAL, /* 0x65 */ |
130 | SPECIAL, /* 0x65 */ |
131 | SPECIAL, /* 0x66 */ |
131 | SPECIAL, /* 0x66 */ |
132 | SPECIAL, /* 0x67 */ |
132 | SPECIAL, /* 0x67 */ |
133 | SPECIAL, /* 0x68 */ |
133 | SPECIAL, /* 0x68 */ |
134 | SPECIAL, /* 0x69 */ |
134 | SPECIAL, /* 0x69 */ |
135 | SPECIAL, /* 0x6a */ |
135 | SPECIAL, /* 0x6a */ |
136 | SPECIAL, /* 0x6b */ |
136 | SPECIAL, /* 0x6b */ |
137 | SPECIAL, /* 0x6c */ |
137 | SPECIAL, /* 0x6c */ |
138 | SPECIAL, /* 0x6d */ |
138 | SPECIAL, /* 0x6d */ |
139 | SPECIAL, /* 0x6e */ |
139 | SPECIAL, /* 0x6e */ |
140 | SPECIAL, /* 0x6f */ |
140 | SPECIAL, /* 0x6f */ |
141 | SPECIAL, /* 0x70 */ |
141 | SPECIAL, /* 0x70 */ |
142 | SPECIAL, /* 0x71 */ |
142 | SPECIAL, /* 0x71 */ |
143 | SPECIAL, /* 0x72 */ |
143 | SPECIAL, /* 0x72 */ |
144 | SPECIAL, /* 0x73 */ |
144 | SPECIAL, /* 0x73 */ |
145 | SPECIAL, /* 0x74 */ |
145 | SPECIAL, /* 0x74 */ |
146 | SPECIAL, /* 0x75 */ |
146 | SPECIAL, /* 0x75 */ |
147 | SPECIAL, /* 0x76 */ |
147 | SPECIAL, /* 0x76 */ |
148 | SPECIAL, /* 0x77 */ |
148 | SPECIAL, /* 0x77 */ |
149 | SPECIAL, /* 0x78 */ |
149 | SPECIAL, /* 0x78 */ |
150 | SPECIAL, /* 0x79 */ |
150 | SPECIAL, /* 0x79 */ |
151 | SPECIAL, /* 0x7a */ |
151 | SPECIAL, /* 0x7a */ |
152 | SPECIAL, /* 0x7b */ |
152 | SPECIAL, /* 0x7b */ |
153 | SPECIAL, /* 0x7c */ |
153 | SPECIAL, /* 0x7c */ |
154 | SPECIAL, /* 0x7d */ |
154 | SPECIAL, /* 0x7d */ |
155 | SPECIAL, /* 0x7e */ |
155 | SPECIAL, /* 0x7e */ |
156 | SPECIAL, /* 0x7f */ |
156 | SPECIAL, /* 0x7f */ |
157 | }; |
157 | }; |
158 | 158 | ||
159 | /** Secondary meaning of scancodes. */ |
159 | /** Secondary meaning of scancodes. */ |
160 | static char sc_secondary_map[] = { |
160 | static char sc_secondary_map[] = { |
161 | SPECIAL, /* 0x00 */ |
161 | SPECIAL, /* 0x00 */ |
162 | SPECIAL, /* 0x01 - Esc */ |
162 | SPECIAL, /* 0x01 - Esc */ |
163 | '!', '@', '#', '$', '%', '^', '&', '*', '(', ')', '_', '+', |
163 | '!', '@', '#', '$', '%', '^', '&', '*', '(', ')', '_', '+', |
164 | SPECIAL, /* 0x0e - Backspace */ |
164 | SPECIAL, /* 0x0e - Backspace */ |
165 | '\t', 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '{', '}', '\n', |
165 | '\t', 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '{', '}', '\n', |
166 | SPECIAL, /* 0x1d - LCtrl */ |
166 | SPECIAL, /* 0x1d - LCtrl */ |
167 | 'A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', '"', |
167 | 'A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', '"', |
168 | '~', |
168 | '~', |
169 | SPECIAL, /* 0x2a - LShift */ |
169 | SPECIAL, /* 0x2a - LShift */ |
170 | '|', |
170 | '|', |
171 | 'Z', 'X', 'C', 'V', 'B', 'N', 'M', '<', '>', '?', |
171 | 'Z', 'X', 'C', 'V', 'B', 'N', 'M', '<', '>', '?', |
172 | SPECIAL, /* 0x36 - RShift */ |
172 | SPECIAL, /* 0x36 - RShift */ |
173 | '*', |
173 | '*', |
174 | SPECIAL, /* 0x38 - LAlt */ |
174 | SPECIAL, /* 0x38 - LAlt */ |
175 | ' ', |
175 | ' ', |
176 | SPECIAL, /* 0x3a - CapsLock */ |
176 | SPECIAL, /* 0x3a - CapsLock */ |
177 | SPECIAL, /* 0x3b - F1 */ |
177 | SPECIAL, /* 0x3b - F1 */ |
178 | SPECIAL, /* 0x3c - F2 */ |
178 | SPECIAL, /* 0x3c - F2 */ |
179 | SPECIAL, /* 0x3d - F3 */ |
179 | SPECIAL, /* 0x3d - F3 */ |
180 | SPECIAL, /* 0x3e - F4 */ |
180 | SPECIAL, /* 0x3e - F4 */ |
181 | SPECIAL, /* 0x3f - F5 */ |
181 | SPECIAL, /* 0x3f - F5 */ |
182 | SPECIAL, /* 0x40 - F6 */ |
182 | SPECIAL, /* 0x40 - F6 */ |
183 | SPECIAL, /* 0x41 - F7 */ |
183 | SPECIAL, /* 0x41 - F7 */ |
184 | SPECIAL, /* 0x42 - F8 */ |
184 | SPECIAL, /* 0x42 - F8 */ |
185 | SPECIAL, /* 0x43 - F9 */ |
185 | SPECIAL, /* 0x43 - F9 */ |
186 | SPECIAL, /* 0x44 - F10 */ |
186 | SPECIAL, /* 0x44 - F10 */ |
187 | SPECIAL, /* 0x45 - NumLock */ |
187 | SPECIAL, /* 0x45 - NumLock */ |
188 | SPECIAL, /* 0x46 - ScrollLock */ |
188 | SPECIAL, /* 0x46 - ScrollLock */ |
189 | '7', '8', '9', '-', |
189 | '7', '8', '9', '-', |
190 | '4', '5', '6', '+', |
190 | '4', '5', '6', '+', |
191 | '1', '2', '3', |
191 | '1', '2', '3', |
192 | '0', '.', |
192 | '0', '.', |
193 | SPECIAL, /* 0x54 - Alt-SysRq */ |
193 | SPECIAL, /* 0x54 - Alt-SysRq */ |
194 | SPECIAL, /* 0x55 - F11/F12/PF1/FN */ |
194 | SPECIAL, /* 0x55 - F11/F12/PF1/FN */ |
195 | SPECIAL, /* 0x56 - unlabelled key next to LAlt */ |
195 | SPECIAL, /* 0x56 - unlabelled key next to LAlt */ |
196 | SPECIAL, /* 0x57 - F11 */ |
196 | SPECIAL, /* 0x57 - F11 */ |
197 | SPECIAL, /* 0x58 - F12 */ |
197 | SPECIAL, /* 0x58 - F12 */ |
198 | SPECIAL, /* 0x59 */ |
198 | SPECIAL, /* 0x59 */ |
199 | SPECIAL, /* 0x5a */ |
199 | SPECIAL, /* 0x5a */ |
200 | SPECIAL, /* 0x5b */ |
200 | SPECIAL, /* 0x5b */ |
201 | SPECIAL, /* 0x5c */ |
201 | SPECIAL, /* 0x5c */ |
202 | SPECIAL, /* 0x5d */ |
202 | SPECIAL, /* 0x5d */ |
203 | SPECIAL, /* 0x5e */ |
203 | SPECIAL, /* 0x5e */ |
204 | SPECIAL, /* 0x5f */ |
204 | SPECIAL, /* 0x5f */ |
205 | SPECIAL, /* 0x60 */ |
205 | SPECIAL, /* 0x60 */ |
206 | SPECIAL, /* 0x61 */ |
206 | SPECIAL, /* 0x61 */ |
207 | SPECIAL, /* 0x62 */ |
207 | SPECIAL, /* 0x62 */ |
208 | SPECIAL, /* 0x63 */ |
208 | SPECIAL, /* 0x63 */ |
209 | SPECIAL, /* 0x64 */ |
209 | SPECIAL, /* 0x64 */ |
210 | SPECIAL, /* 0x65 */ |
210 | SPECIAL, /* 0x65 */ |
211 | SPECIAL, /* 0x66 */ |
211 | SPECIAL, /* 0x66 */ |
212 | SPECIAL, /* 0x67 */ |
212 | SPECIAL, /* 0x67 */ |
213 | SPECIAL, /* 0x68 */ |
213 | SPECIAL, /* 0x68 */ |
214 | SPECIAL, /* 0x69 */ |
214 | SPECIAL, /* 0x69 */ |
215 | SPECIAL, /* 0x6a */ |
215 | SPECIAL, /* 0x6a */ |
216 | SPECIAL, /* 0x6b */ |
216 | SPECIAL, /* 0x6b */ |
217 | SPECIAL, /* 0x6c */ |
217 | SPECIAL, /* 0x6c */ |
218 | SPECIAL, /* 0x6d */ |
218 | SPECIAL, /* 0x6d */ |
219 | SPECIAL, /* 0x6e */ |
219 | SPECIAL, /* 0x6e */ |
220 | SPECIAL, /* 0x6f */ |
220 | SPECIAL, /* 0x6f */ |
221 | SPECIAL, /* 0x70 */ |
221 | SPECIAL, /* 0x70 */ |
222 | SPECIAL, /* 0x71 */ |
222 | SPECIAL, /* 0x71 */ |
223 | SPECIAL, /* 0x72 */ |
223 | SPECIAL, /* 0x72 */ |
224 | SPECIAL, /* 0x73 */ |
224 | SPECIAL, /* 0x73 */ |
225 | SPECIAL, /* 0x74 */ |
225 | SPECIAL, /* 0x74 */ |
226 | SPECIAL, /* 0x75 */ |
226 | SPECIAL, /* 0x75 */ |
227 | SPECIAL, /* 0x76 */ |
227 | SPECIAL, /* 0x76 */ |
228 | SPECIAL, /* 0x77 */ |
228 | SPECIAL, /* 0x77 */ |
229 | SPECIAL, /* 0x78 */ |
229 | SPECIAL, /* 0x78 */ |
230 | SPECIAL, /* 0x79 */ |
230 | SPECIAL, /* 0x79 */ |
231 | SPECIAL, /* 0x7a */ |
231 | SPECIAL, /* 0x7a */ |
232 | SPECIAL, /* 0x7b */ |
232 | SPECIAL, /* 0x7b */ |
233 | SPECIAL, /* 0x7c */ |
233 | SPECIAL, /* 0x7c */ |
234 | SPECIAL, /* 0x7d */ |
234 | SPECIAL, /* 0x7d */ |
235 | SPECIAL, /* 0x7e */ |
235 | SPECIAL, /* 0x7e */ |
236 | SPECIAL, /* 0x7f */ |
236 | SPECIAL, /* 0x7f */ |
237 | }; |
237 | }; |
238 | 238 | ||
239 | static void i8042_interrupt(int n, void *stack); |
239 | static void i8042_interrupt(int n, void *stack); |
240 | 240 | ||
241 | /** Initialize i8042. */ |
241 | /** Initialize i8042. */ |
242 | void i8042_init(void) |
242 | void i8042_init(void) |
243 | { |
243 | { |
244 | exc_register(VECTOR_KBD, "i8042_interrupt", i8042_interrupt); |
244 | exc_register(VECTOR_KBD, "i8042_interrupt", i8042_interrupt); |
245 | trap_virtual_enable_irqs(1<<IRQ_KBD); |
245 | trap_virtual_enable_irqs(1<<IRQ_KBD); |
246 | spinlock_initialize(&keylock, "i8042_lock"); |
- | |
247 | chardev_initialize("i8042_kbd", &kbrd, &ops); |
246 | chardev_initialize("i8042_kbd", &kbrd, &ops); |
248 | stdin = &kbrd; |
247 | stdin = &kbrd; |
249 | } |
248 | } |
250 | 249 | ||
251 | /** Process i8042 interrupt. |
250 | /** Process i8042 interrupt. |
252 | * |
251 | * |
253 | * @param n Interrupt vector. |
252 | * @param n Interrupt vector. |
254 | * @param stack Interrupted stack. |
253 | * @param stack Interrupted stack. |
255 | */ |
254 | */ |
256 | void i8042_interrupt(int n, void *stack) |
255 | void i8042_interrupt(int n, void *stack) |
257 | { |
256 | { |
258 | __u8 x; |
257 | __u8 x; |
259 | 258 | ||
260 | trap_virtual_eoi(); |
259 | trap_virtual_eoi(); |
261 | x = inb(i8042_DATA); |
260 | x = inb(i8042_DATA); |
262 | if (x & KEY_RELEASE) |
261 | if (x & KEY_RELEASE) |
263 | key_released(x ^ KEY_RELEASE); |
262 | key_released(x ^ KEY_RELEASE); |
264 | else |
263 | else |
265 | key_pressed(x); |
264 | key_pressed(x); |
266 | } |
265 | } |
267 | 266 | ||
268 | /** Process release of key. |
267 | /** Process release of key. |
269 | * |
268 | * |
270 | * @param sc Scancode of the key being released. |
269 | * @param sc Scancode of the key being released. |
271 | */ |
270 | */ |
272 | void key_released(__u8 sc) |
271 | void key_released(__u8 sc) |
273 | { |
272 | { |
274 | spinlock_lock(&keylock); |
273 | spinlock_lock(&keylock); |
275 | switch (sc) { |
274 | switch (sc) { |
276 | case SC_LSHIFT: |
275 | case SC_LSHIFT: |
277 | case SC_RSHIFT: |
276 | case SC_RSHIFT: |
278 | keyflags &= ~PRESSED_SHIFT; |
277 | keyflags &= ~PRESSED_SHIFT; |
279 | break; |
278 | break; |
280 | case SC_CAPSLOCK: |
279 | case SC_CAPSLOCK: |
281 | keyflags &= ~PRESSED_CAPSLOCK; |
280 | keyflags &= ~PRESSED_CAPSLOCK; |
282 | if (lockflags & LOCKED_CAPSLOCK) |
281 | if (lockflags & LOCKED_CAPSLOCK) |
283 | lockflags &= ~LOCKED_CAPSLOCK; |
282 | lockflags &= ~LOCKED_CAPSLOCK; |
284 | else |
283 | else |
285 | lockflags |= LOCKED_CAPSLOCK; |
284 | lockflags |= LOCKED_CAPSLOCK; |
286 | break; |
285 | break; |
287 | default: |
286 | default: |
288 | break; |
287 | break; |
289 | } |
288 | } |
290 | spinlock_unlock(&keylock); |
289 | spinlock_unlock(&keylock); |
291 | } |
290 | } |
292 | 291 | ||
293 | /** Process keypress. |
292 | /** Process keypress. |
294 | * |
293 | * |
295 | * @param sc Scancode of the key being pressed. |
294 | * @param sc Scancode of the key being pressed. |
296 | */ |
295 | */ |
297 | void key_pressed(__u8 sc) |
296 | void key_pressed(__u8 sc) |
298 | { |
297 | { |
299 | char *map = sc_primary_map; |
298 | char *map = sc_primary_map; |
300 | char ascii = sc_primary_map[sc]; |
299 | char ascii = sc_primary_map[sc]; |
301 | bool shift, capslock; |
300 | bool shift, capslock; |
302 | bool letter = false; |
301 | bool letter = false; |
303 | 302 | ||
304 | spinlock_lock(&keylock); |
303 | spinlock_lock(&keylock); |
305 | switch (sc) { |
304 | switch (sc) { |
306 | case SC_LSHIFT: |
305 | case SC_LSHIFT: |
307 | case SC_RSHIFT: |
306 | case SC_RSHIFT: |
308 | keyflags |= PRESSED_SHIFT; |
307 | keyflags |= PRESSED_SHIFT; |
309 | break; |
308 | break; |
310 | case SC_CAPSLOCK: |
309 | case SC_CAPSLOCK: |
311 | keyflags |= PRESSED_CAPSLOCK; |
310 | keyflags |= PRESSED_CAPSLOCK; |
312 | break; |
311 | break; |
313 | case SC_SPEC_ESCAPE: |
312 | case SC_SPEC_ESCAPE: |
314 | break; |
313 | break; |
315 | case SC_LEFTARR: |
314 | case SC_LEFTARR: |
316 | chardev_push_character(&kbrd, 0x1b); |
315 | chardev_push_character(&kbrd, 0x1b); |
317 | chardev_push_character(&kbrd, 0x5b); |
316 | chardev_push_character(&kbrd, 0x5b); |
318 | chardev_push_character(&kbrd, 0x44); |
317 | chardev_push_character(&kbrd, 0x44); |
319 | break; |
318 | break; |
320 | case SC_RIGHTARR: |
319 | case SC_RIGHTARR: |
321 | chardev_push_character(&kbrd, 0x1b); |
320 | chardev_push_character(&kbrd, 0x1b); |
322 | chardev_push_character(&kbrd, 0x5b); |
321 | chardev_push_character(&kbrd, 0x5b); |
323 | chardev_push_character(&kbrd, 0x43); |
322 | chardev_push_character(&kbrd, 0x43); |
324 | break; |
323 | break; |
325 | case SC_UPARR: |
324 | case SC_UPARR: |
326 | chardev_push_character(&kbrd, 0x1b); |
325 | chardev_push_character(&kbrd, 0x1b); |
327 | chardev_push_character(&kbrd, 0x5b); |
326 | chardev_push_character(&kbrd, 0x5b); |
328 | chardev_push_character(&kbrd, 0x41); |
327 | chardev_push_character(&kbrd, 0x41); |
329 | break; |
328 | break; |
330 | case SC_DOWNARR: |
329 | case SC_DOWNARR: |
331 | chardev_push_character(&kbrd, 0x1b); |
330 | chardev_push_character(&kbrd, 0x1b); |
332 | chardev_push_character(&kbrd, 0x5b); |
331 | chardev_push_character(&kbrd, 0x5b); |
333 | chardev_push_character(&kbrd, 0x42); |
332 | chardev_push_character(&kbrd, 0x42); |
334 | break; |
333 | break; |
335 | case SC_HOME: |
334 | case SC_HOME: |
336 | chardev_push_character(&kbrd, 0x1b); |
335 | chardev_push_character(&kbrd, 0x1b); |
337 | chardev_push_character(&kbrd, 0x4f); |
336 | chardev_push_character(&kbrd, 0x4f); |
338 | chardev_push_character(&kbrd, 0x48); |
337 | chardev_push_character(&kbrd, 0x48); |
339 | break; |
338 | break; |
340 | case SC_END: |
339 | case SC_END: |
341 | chardev_push_character(&kbrd, 0x1b); |
340 | chardev_push_character(&kbrd, 0x1b); |
342 | chardev_push_character(&kbrd, 0x4f); |
341 | chardev_push_character(&kbrd, 0x4f); |
343 | chardev_push_character(&kbrd, 0x46); |
342 | chardev_push_character(&kbrd, 0x46); |
344 | break; |
343 | break; |
345 | case SC_DELETE: |
344 | case SC_DELETE: |
346 | chardev_push_character(&kbrd, 0x1b); |
345 | chardev_push_character(&kbrd, 0x1b); |
347 | chardev_push_character(&kbrd, 0x5b); |
346 | chardev_push_character(&kbrd, 0x5b); |
348 | chardev_push_character(&kbrd, 0x33); |
347 | chardev_push_character(&kbrd, 0x33); |
349 | chardev_push_character(&kbrd, 0x7e); |
348 | chardev_push_character(&kbrd, 0x7e); |
350 | break; |
349 | break; |
351 | default: |
350 | default: |
352 | letter = is_lower(ascii); |
351 | letter = is_lower(ascii); |
353 | capslock = (keyflags & PRESSED_CAPSLOCK) || (lockflags & LOCKED_CAPSLOCK); |
352 | capslock = (keyflags & PRESSED_CAPSLOCK) || (lockflags & LOCKED_CAPSLOCK); |
354 | shift = keyflags & PRESSED_SHIFT; |
353 | shift = keyflags & PRESSED_SHIFT; |
355 | if (letter && capslock) |
354 | if (letter && capslock) |
356 | shift = !shift; |
355 | shift = !shift; |
357 | if (shift) |
356 | if (shift) |
358 | map = sc_secondary_map; |
357 | map = sc_secondary_map; |
359 | chardev_push_character(&kbrd, map[sc]); |
358 | chardev_push_character(&kbrd, map[sc]); |
360 | break; |
359 | break; |
361 | } |
360 | } |
362 | spinlock_unlock(&keylock); |
361 | spinlock_unlock(&keylock); |
363 | } |
362 | } |
364 | 363 | ||
365 | /* Called from getc(). */ |
364 | /* Called from getc(). */ |
366 | void i8042_resume(chardev_t *d) |
365 | void i8042_resume(chardev_t *d) |
367 | { |
366 | { |
368 | } |
367 | } |
369 | 368 | ||
370 | /* Called from getc(). */ |
369 | /* Called from getc(). */ |
371 | void i8042_suspend(chardev_t *d) |
370 | void i8042_suspend(chardev_t *d) |
372 | { |
371 | { |
373 | } |
372 | } |
374 | 373 |