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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 | 41 | ||
42 | /** |
42 | /** |
43 | * i8042 processor driver. |
43 | * i8042 processor driver. |
44 | * It takes care of low-level keyboard functions. |
44 | * It takes care of low-level keyboard functions. |
45 | */ |
45 | */ |
46 | 46 | ||
47 | #define i8042_DATA 0x60 |
47 | #define i8042_DATA 0x60 |
48 | #define i8042_STATUS 0x64 |
48 | #define i8042_STATUS 0x64 |
49 | 49 | ||
50 | /** Keyboard commands. */ |
50 | /** Keyboard commands. */ |
51 | #define KBD_ENABLE 0xf4 |
51 | #define KBD_ENABLE 0xf4 |
52 | #define KBD_DISABLE 0xf5 |
52 | #define KBD_DISABLE 0xf5 |
53 | #define KBD_ACK 0xfa |
53 | #define KBD_ACK 0xfa |
54 | 54 | ||
55 | #define SPECIAL '?' |
55 | #define SPECIAL '?' |
56 | #define KEY_RELEASE 0x80 |
56 | #define KEY_RELEASE 0x80 |
57 | 57 | ||
58 | static void key_released(__u8 sc); |
58 | static void key_released(__u8 sc); |
59 | static void key_pressed(__u8 sc); |
59 | static void key_pressed(__u8 sc); |
60 | 60 | ||
61 | #define PRESSED_SHIFT (1<<0) |
61 | #define PRESSED_SHIFT (1<<0) |
62 | #define PRESSED_CAPSLOCK (1<<1) |
62 | #define PRESSED_CAPSLOCK (1<<1) |
63 | #define LOCKED_CAPSLOCK (1<<0) |
63 | #define LOCKED_CAPSLOCK (1<<0) |
64 | 64 | ||
65 | static spinlock_t keylock; /**< keylock protects keyflags and lockflags. */ |
65 | static spinlock_t keylock; /**< keylock protects keyflags and lockflags. */ |
66 | static volatile int keyflags; /**< Tracking of multiple keypresses. */ |
66 | static volatile int keyflags; /**< Tracking of multiple keypresses. */ |
67 | static volatile int lockflags; /**< Tracking of multiple keys lockings. */ |
67 | static volatile int lockflags; /**< Tracking of multiple keys lockings. */ |
68 | 68 | ||
69 | static void i8042_suspend(void); |
69 | static void i8042_suspend(chardev_t *); |
70 | static void i8042_resume(void); |
70 | static void i8042_resume(chardev_t *); |
71 | 71 | ||
72 | static chardev_t kbrd; |
72 | static chardev_t kbrd; |
73 | static chardev_operations_t ops = { |
73 | static chardev_operations_t ops = { |
74 | .suspend = i8042_suspend, |
74 | .suspend = i8042_suspend, |
75 | .resume = i8042_resume |
75 | .resume = i8042_resume |
76 | }; |
76 | }; |
77 | 77 | ||
78 | /** Primary meaning of scancodes. */ |
78 | /** Primary meaning of scancodes. */ |
79 | static char sc_primary_map[] = { |
79 | static char sc_primary_map[] = { |
80 | SPECIAL, /* 0x00 */ |
80 | SPECIAL, /* 0x00 */ |
81 | SPECIAL, /* 0x01 - Esc */ |
81 | SPECIAL, /* 0x01 - Esc */ |
82 | '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=', |
82 | '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=', |
83 | SPECIAL, /* 0x0e - Backspace */ |
83 | SPECIAL, /* 0x0e - Backspace */ |
84 | '\t', 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']', '\n', |
84 | '\t', 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']', '\n', |
85 | SPECIAL, /* 0x1d - LCtrl */ |
85 | SPECIAL, /* 0x1d - LCtrl */ |
86 | 'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'', |
86 | 'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'', |
87 | '`', |
87 | '`', |
88 | SPECIAL, /* 0x2a - LShift */ |
88 | SPECIAL, /* 0x2a - LShift */ |
89 | '\\', |
89 | '\\', |
90 | 'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/', |
90 | 'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/', |
91 | SPECIAL, /* 0x36 - RShift */ |
91 | SPECIAL, /* 0x36 - RShift */ |
92 | '*', |
92 | '*', |
93 | SPECIAL, /* 0x38 - LAlt */ |
93 | SPECIAL, /* 0x38 - LAlt */ |
94 | ' ', |
94 | ' ', |
95 | SPECIAL, /* 0x3a - CapsLock */ |
95 | SPECIAL, /* 0x3a - CapsLock */ |
96 | SPECIAL, /* 0x3b - F1 */ |
96 | SPECIAL, /* 0x3b - F1 */ |
97 | SPECIAL, /* 0x3c - F2 */ |
97 | SPECIAL, /* 0x3c - F2 */ |
98 | SPECIAL, /* 0x3d - F3 */ |
98 | SPECIAL, /* 0x3d - F3 */ |
99 | SPECIAL, /* 0x3e - F4 */ |
99 | SPECIAL, /* 0x3e - F4 */ |
100 | SPECIAL, /* 0x3f - F5 */ |
100 | SPECIAL, /* 0x3f - F5 */ |
101 | SPECIAL, /* 0x40 - F6 */ |
101 | SPECIAL, /* 0x40 - F6 */ |
102 | SPECIAL, /* 0x41 - F7 */ |
102 | SPECIAL, /* 0x41 - F7 */ |
103 | SPECIAL, /* 0x42 - F8 */ |
103 | SPECIAL, /* 0x42 - F8 */ |
104 | SPECIAL, /* 0x43 - F9 */ |
104 | SPECIAL, /* 0x43 - F9 */ |
105 | SPECIAL, /* 0x44 - F10 */ |
105 | SPECIAL, /* 0x44 - F10 */ |
106 | SPECIAL, /* 0x45 - NumLock */ |
106 | SPECIAL, /* 0x45 - NumLock */ |
107 | SPECIAL, /* 0x46 - ScrollLock */ |
107 | SPECIAL, /* 0x46 - ScrollLock */ |
108 | '7', '8', '9', '-', |
108 | '7', '8', '9', '-', |
109 | '4', '5', '6', '+', |
109 | '4', '5', '6', '+', |
110 | '1', '2', '3', |
110 | '1', '2', '3', |
111 | '0', '.', |
111 | '0', '.', |
112 | SPECIAL, /* 0x54 - Alt-SysRq */ |
112 | SPECIAL, /* 0x54 - Alt-SysRq */ |
113 | SPECIAL, /* 0x55 - F11/F12/PF1/FN */ |
113 | SPECIAL, /* 0x55 - F11/F12/PF1/FN */ |
114 | SPECIAL, /* 0x56 - unlabelled key next to LAlt */ |
114 | SPECIAL, /* 0x56 - unlabelled key next to LAlt */ |
115 | SPECIAL, /* 0x57 - F11 */ |
115 | SPECIAL, /* 0x57 - F11 */ |
116 | SPECIAL, /* 0x58 - F12 */ |
116 | SPECIAL, /* 0x58 - F12 */ |
117 | SPECIAL, /* 0x59 */ |
117 | SPECIAL, /* 0x59 */ |
118 | SPECIAL, /* 0x5a */ |
118 | SPECIAL, /* 0x5a */ |
119 | SPECIAL, /* 0x5b */ |
119 | SPECIAL, /* 0x5b */ |
120 | SPECIAL, /* 0x5c */ |
120 | SPECIAL, /* 0x5c */ |
121 | SPECIAL, /* 0x5d */ |
121 | SPECIAL, /* 0x5d */ |
122 | SPECIAL, /* 0x5e */ |
122 | SPECIAL, /* 0x5e */ |
123 | SPECIAL, /* 0x5f */ |
123 | SPECIAL, /* 0x5f */ |
124 | SPECIAL, /* 0x60 */ |
124 | SPECIAL, /* 0x60 */ |
125 | SPECIAL, /* 0x61 */ |
125 | SPECIAL, /* 0x61 */ |
126 | SPECIAL, /* 0x62 */ |
126 | SPECIAL, /* 0x62 */ |
127 | SPECIAL, /* 0x63 */ |
127 | SPECIAL, /* 0x63 */ |
128 | SPECIAL, /* 0x64 */ |
128 | SPECIAL, /* 0x64 */ |
129 | SPECIAL, /* 0x65 */ |
129 | SPECIAL, /* 0x65 */ |
130 | SPECIAL, /* 0x66 */ |
130 | SPECIAL, /* 0x66 */ |
131 | SPECIAL, /* 0x67 */ |
131 | SPECIAL, /* 0x67 */ |
132 | SPECIAL, /* 0x68 */ |
132 | SPECIAL, /* 0x68 */ |
133 | SPECIAL, /* 0x69 */ |
133 | SPECIAL, /* 0x69 */ |
134 | SPECIAL, /* 0x6a */ |
134 | SPECIAL, /* 0x6a */ |
135 | SPECIAL, /* 0x6b */ |
135 | SPECIAL, /* 0x6b */ |
136 | SPECIAL, /* 0x6c */ |
136 | SPECIAL, /* 0x6c */ |
137 | SPECIAL, /* 0x6d */ |
137 | SPECIAL, /* 0x6d */ |
138 | SPECIAL, /* 0x6e */ |
138 | SPECIAL, /* 0x6e */ |
139 | SPECIAL, /* 0x6f */ |
139 | SPECIAL, /* 0x6f */ |
140 | SPECIAL, /* 0x70 */ |
140 | SPECIAL, /* 0x70 */ |
141 | SPECIAL, /* 0x71 */ |
141 | SPECIAL, /* 0x71 */ |
142 | SPECIAL, /* 0x72 */ |
142 | SPECIAL, /* 0x72 */ |
143 | SPECIAL, /* 0x73 */ |
143 | SPECIAL, /* 0x73 */ |
144 | SPECIAL, /* 0x74 */ |
144 | SPECIAL, /* 0x74 */ |
145 | SPECIAL, /* 0x75 */ |
145 | SPECIAL, /* 0x75 */ |
146 | SPECIAL, /* 0x76 */ |
146 | SPECIAL, /* 0x76 */ |
147 | SPECIAL, /* 0x77 */ |
147 | SPECIAL, /* 0x77 */ |
148 | SPECIAL, /* 0x78 */ |
148 | SPECIAL, /* 0x78 */ |
149 | SPECIAL, /* 0x79 */ |
149 | SPECIAL, /* 0x79 */ |
150 | SPECIAL, /* 0x7a */ |
150 | SPECIAL, /* 0x7a */ |
151 | SPECIAL, /* 0x7b */ |
151 | SPECIAL, /* 0x7b */ |
152 | SPECIAL, /* 0x7c */ |
152 | SPECIAL, /* 0x7c */ |
153 | SPECIAL, /* 0x7d */ |
153 | SPECIAL, /* 0x7d */ |
154 | SPECIAL, /* 0x7e */ |
154 | SPECIAL, /* 0x7e */ |
155 | SPECIAL, /* 0x7f */ |
155 | SPECIAL, /* 0x7f */ |
156 | }; |
156 | }; |
157 | 157 | ||
158 | /** Secondary meaning of scancodes. */ |
158 | /** Secondary meaning of scancodes. */ |
159 | static char sc_secondary_map[] = { |
159 | static char sc_secondary_map[] = { |
160 | SPECIAL, /* 0x00 */ |
160 | SPECIAL, /* 0x00 */ |
161 | SPECIAL, /* 0x01 - Esc */ |
161 | SPECIAL, /* 0x01 - Esc */ |
162 | '!', '@', '#', '$', '%', '^', '&', '*', '(', ')', '_', '+', |
162 | '!', '@', '#', '$', '%', '^', '&', '*', '(', ')', '_', '+', |
163 | SPECIAL, /* 0x0e - Backspace */ |
163 | SPECIAL, /* 0x0e - Backspace */ |
164 | '\t', 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '{', '}', '\n', |
164 | '\t', 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '{', '}', '\n', |
165 | SPECIAL, /* 0x1d - LCtrl */ |
165 | SPECIAL, /* 0x1d - LCtrl */ |
166 | 'A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', '"', |
166 | 'A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', '"', |
167 | '~', |
167 | '~', |
168 | SPECIAL, /* 0x2a - LShift */ |
168 | SPECIAL, /* 0x2a - LShift */ |
169 | '|', |
169 | '|', |
170 | 'Z', 'X', 'C', 'V', 'B', 'N', 'M', '<', '>', '?', |
170 | 'Z', 'X', 'C', 'V', 'B', 'N', 'M', '<', '>', '?', |
171 | SPECIAL, /* 0x36 - RShift */ |
171 | SPECIAL, /* 0x36 - RShift */ |
172 | '*', |
172 | '*', |
173 | SPECIAL, /* 0x38 - LAlt */ |
173 | SPECIAL, /* 0x38 - LAlt */ |
174 | ' ', |
174 | ' ', |
175 | SPECIAL, /* 0x3a - CapsLock */ |
175 | SPECIAL, /* 0x3a - CapsLock */ |
176 | SPECIAL, /* 0x3b - F1 */ |
176 | SPECIAL, /* 0x3b - F1 */ |
177 | SPECIAL, /* 0x3c - F2 */ |
177 | SPECIAL, /* 0x3c - F2 */ |
178 | SPECIAL, /* 0x3d - F3 */ |
178 | SPECIAL, /* 0x3d - F3 */ |
179 | SPECIAL, /* 0x3e - F4 */ |
179 | SPECIAL, /* 0x3e - F4 */ |
180 | SPECIAL, /* 0x3f - F5 */ |
180 | SPECIAL, /* 0x3f - F5 */ |
181 | SPECIAL, /* 0x40 - F6 */ |
181 | SPECIAL, /* 0x40 - F6 */ |
182 | SPECIAL, /* 0x41 - F7 */ |
182 | SPECIAL, /* 0x41 - F7 */ |
183 | SPECIAL, /* 0x42 - F8 */ |
183 | SPECIAL, /* 0x42 - F8 */ |
184 | SPECIAL, /* 0x43 - F9 */ |
184 | SPECIAL, /* 0x43 - F9 */ |
185 | SPECIAL, /* 0x44 - F10 */ |
185 | SPECIAL, /* 0x44 - F10 */ |
186 | SPECIAL, /* 0x45 - NumLock */ |
186 | SPECIAL, /* 0x45 - NumLock */ |
187 | SPECIAL, /* 0x46 - ScrollLock */ |
187 | SPECIAL, /* 0x46 - ScrollLock */ |
188 | '7', '8', '9', '-', |
188 | '7', '8', '9', '-', |
189 | '4', '5', '6', '+', |
189 | '4', '5', '6', '+', |
190 | '1', '2', '3', |
190 | '1', '2', '3', |
191 | '0', '.', |
191 | '0', '.', |
192 | SPECIAL, /* 0x54 - Alt-SysRq */ |
192 | SPECIAL, /* 0x54 - Alt-SysRq */ |
193 | SPECIAL, /* 0x55 - F11/F12/PF1/FN */ |
193 | SPECIAL, /* 0x55 - F11/F12/PF1/FN */ |
194 | SPECIAL, /* 0x56 - unlabelled key next to LAlt */ |
194 | SPECIAL, /* 0x56 - unlabelled key next to LAlt */ |
195 | SPECIAL, /* 0x57 - F11 */ |
195 | SPECIAL, /* 0x57 - F11 */ |
196 | SPECIAL, /* 0x58 - F12 */ |
196 | SPECIAL, /* 0x58 - F12 */ |
197 | SPECIAL, /* 0x59 */ |
197 | SPECIAL, /* 0x59 */ |
198 | SPECIAL, /* 0x5a */ |
198 | SPECIAL, /* 0x5a */ |
199 | SPECIAL, /* 0x5b */ |
199 | SPECIAL, /* 0x5b */ |
200 | SPECIAL, /* 0x5c */ |
200 | SPECIAL, /* 0x5c */ |
201 | SPECIAL, /* 0x5d */ |
201 | SPECIAL, /* 0x5d */ |
202 | SPECIAL, /* 0x5e */ |
202 | SPECIAL, /* 0x5e */ |
203 | SPECIAL, /* 0x5f */ |
203 | SPECIAL, /* 0x5f */ |
204 | SPECIAL, /* 0x60 */ |
204 | SPECIAL, /* 0x60 */ |
205 | SPECIAL, /* 0x61 */ |
205 | SPECIAL, /* 0x61 */ |
206 | SPECIAL, /* 0x62 */ |
206 | SPECIAL, /* 0x62 */ |
207 | SPECIAL, /* 0x63 */ |
207 | SPECIAL, /* 0x63 */ |
208 | SPECIAL, /* 0x64 */ |
208 | SPECIAL, /* 0x64 */ |
209 | SPECIAL, /* 0x65 */ |
209 | SPECIAL, /* 0x65 */ |
210 | SPECIAL, /* 0x66 */ |
210 | SPECIAL, /* 0x66 */ |
211 | SPECIAL, /* 0x67 */ |
211 | SPECIAL, /* 0x67 */ |
212 | SPECIAL, /* 0x68 */ |
212 | SPECIAL, /* 0x68 */ |
213 | SPECIAL, /* 0x69 */ |
213 | SPECIAL, /* 0x69 */ |
214 | SPECIAL, /* 0x6a */ |
214 | SPECIAL, /* 0x6a */ |
215 | SPECIAL, /* 0x6b */ |
215 | SPECIAL, /* 0x6b */ |
216 | SPECIAL, /* 0x6c */ |
216 | SPECIAL, /* 0x6c */ |
217 | SPECIAL, /* 0x6d */ |
217 | SPECIAL, /* 0x6d */ |
218 | SPECIAL, /* 0x6e */ |
218 | SPECIAL, /* 0x6e */ |
219 | SPECIAL, /* 0x6f */ |
219 | SPECIAL, /* 0x6f */ |
220 | SPECIAL, /* 0x70 */ |
220 | SPECIAL, /* 0x70 */ |
221 | SPECIAL, /* 0x71 */ |
221 | SPECIAL, /* 0x71 */ |
222 | SPECIAL, /* 0x72 */ |
222 | SPECIAL, /* 0x72 */ |
223 | SPECIAL, /* 0x73 */ |
223 | SPECIAL, /* 0x73 */ |
224 | SPECIAL, /* 0x74 */ |
224 | SPECIAL, /* 0x74 */ |
225 | SPECIAL, /* 0x75 */ |
225 | SPECIAL, /* 0x75 */ |
226 | SPECIAL, /* 0x76 */ |
226 | SPECIAL, /* 0x76 */ |
227 | SPECIAL, /* 0x77 */ |
227 | SPECIAL, /* 0x77 */ |
228 | SPECIAL, /* 0x78 */ |
228 | SPECIAL, /* 0x78 */ |
229 | SPECIAL, /* 0x79 */ |
229 | SPECIAL, /* 0x79 */ |
230 | SPECIAL, /* 0x7a */ |
230 | SPECIAL, /* 0x7a */ |
231 | SPECIAL, /* 0x7b */ |
231 | SPECIAL, /* 0x7b */ |
232 | SPECIAL, /* 0x7c */ |
232 | SPECIAL, /* 0x7c */ |
233 | SPECIAL, /* 0x7d */ |
233 | SPECIAL, /* 0x7d */ |
234 | SPECIAL, /* 0x7e */ |
234 | SPECIAL, /* 0x7e */ |
235 | SPECIAL, /* 0x7f */ |
235 | SPECIAL, /* 0x7f */ |
236 | }; |
236 | }; |
237 | 237 | ||
238 | /** Initialize i8042. */ |
238 | /** Initialize i8042. */ |
239 | void i8042_init(void) |
239 | void i8042_init(void) |
240 | { |
240 | { |
241 | trap_register(VECTOR_KBD, i8042_interrupt); |
241 | trap_register(VECTOR_KBD, i8042_interrupt); |
242 | trap_virtual_enable_irqs(1<<IRQ_KBD); |
242 | trap_virtual_enable_irqs(1<<IRQ_KBD); |
243 | spinlock_initialize(&keylock, "i8042_lock"); |
243 | spinlock_initialize(&keylock, "i8042_lock"); |
244 | chardev_initialize(&kbrd, &ops); |
244 | chardev_initialize("i8042_kbd", &kbrd, &ops); |
245 | stdin = &kbrd; |
245 | stdin = &kbrd; |
246 | } |
246 | } |
247 | 247 | ||
248 | /** Process i8042 interrupt. |
248 | /** Process i8042 interrupt. |
249 | * |
249 | * |
250 | * @param n Interrupt vector. |
250 | * @param n Interrupt vector. |
251 | * @param stack Interrupted stack. |
251 | * @param stack Interrupted stack. |
252 | */ |
252 | */ |
253 | void i8042_interrupt(__u8 n, __native stack[]) |
253 | void i8042_interrupt(__u8 n, __native stack[]) |
254 | { |
254 | { |
255 | __u8 x; |
255 | __u8 x; |
256 | 256 | ||
257 | trap_virtual_eoi(); |
257 | trap_virtual_eoi(); |
258 | x = inb(i8042_DATA); |
258 | x = inb(i8042_DATA); |
259 | if (x & KEY_RELEASE) |
259 | if (x & KEY_RELEASE) |
260 | key_released(x ^ KEY_RELEASE); |
260 | key_released(x ^ KEY_RELEASE); |
261 | else |
261 | else |
262 | key_pressed(x); |
262 | key_pressed(x); |
263 | } |
263 | } |
264 | 264 | ||
265 | /** Process release of key. |
265 | /** Process release of key. |
266 | * |
266 | * |
267 | * @param sc Scancode of the key being released. |
267 | * @param sc Scancode of the key being released. |
268 | */ |
268 | */ |
269 | void key_released(__u8 sc) |
269 | void key_released(__u8 sc) |
270 | { |
270 | { |
271 | spinlock_lock(&keylock); |
271 | spinlock_lock(&keylock); |
272 | switch (sc) { |
272 | switch (sc) { |
273 | case SC_LSHIFT: |
273 | case SC_LSHIFT: |
274 | case SC_RSHIFT: |
274 | case SC_RSHIFT: |
275 | keyflags &= ~PRESSED_SHIFT; |
275 | keyflags &= ~PRESSED_SHIFT; |
276 | break; |
276 | break; |
277 | case SC_CAPSLOCK: |
277 | case SC_CAPSLOCK: |
278 | keyflags &= ~PRESSED_CAPSLOCK; |
278 | keyflags &= ~PRESSED_CAPSLOCK; |
279 | if (lockflags & LOCKED_CAPSLOCK) |
279 | if (lockflags & LOCKED_CAPSLOCK) |
280 | lockflags &= ~LOCKED_CAPSLOCK; |
280 | lockflags &= ~LOCKED_CAPSLOCK; |
281 | else |
281 | else |
282 | lockflags |= LOCKED_CAPSLOCK; |
282 | lockflags |= LOCKED_CAPSLOCK; |
283 | break; |
283 | break; |
284 | default: |
284 | default: |
285 | break; |
285 | break; |
286 | } |
286 | } |
287 | spinlock_unlock(&keylock); |
287 | spinlock_unlock(&keylock); |
288 | } |
288 | } |
289 | 289 | ||
290 | /** Process keypress. |
290 | /** Process keypress. |
291 | * |
291 | * |
292 | * @param sc Scancode of the key being pressed. |
292 | * @param sc Scancode of the key being pressed. |
293 | */ |
293 | */ |
294 | void key_pressed(__u8 sc) |
294 | void key_pressed(__u8 sc) |
295 | { |
295 | { |
296 | char *map = sc_primary_map; |
296 | char *map = sc_primary_map; |
297 | char ascii = sc_primary_map[sc]; |
297 | char ascii = sc_primary_map[sc]; |
298 | bool shift, capslock; |
298 | bool shift, capslock; |
299 | bool letter = false; |
299 | bool letter = false; |
300 | 300 | ||
301 | spinlock_lock(&keylock); |
301 | spinlock_lock(&keylock); |
302 | switch (sc) { |
302 | switch (sc) { |
303 | case SC_LSHIFT: |
303 | case SC_LSHIFT: |
304 | case SC_RSHIFT: |
304 | case SC_RSHIFT: |
305 | keyflags |= PRESSED_SHIFT; |
305 | keyflags |= PRESSED_SHIFT; |
306 | break; |
306 | break; |
307 | case SC_CAPSLOCK: |
307 | case SC_CAPSLOCK: |
308 | keyflags |= PRESSED_CAPSLOCK; |
308 | keyflags |= PRESSED_CAPSLOCK; |
309 | break; |
309 | break; |
310 | default: |
310 | default: |
311 | letter = is_lower(ascii); |
311 | letter = is_lower(ascii); |
312 | capslock = (keyflags & PRESSED_CAPSLOCK) || (lockflags & LOCKED_CAPSLOCK); |
312 | capslock = (keyflags & PRESSED_CAPSLOCK) || (lockflags & LOCKED_CAPSLOCK); |
313 | shift = keyflags & PRESSED_SHIFT; |
313 | shift = keyflags & PRESSED_SHIFT; |
314 | if (letter && capslock) |
314 | if (letter && capslock) |
315 | shift = !shift; |
315 | shift = !shift; |
316 | if (shift) |
316 | if (shift) |
317 | map = sc_secondary_map; |
317 | map = sc_secondary_map; |
318 | chardev_push_character(&kbrd, map[sc]); |
318 | chardev_push_character(&kbrd, map[sc]); |
319 | break; |
319 | break; |
320 | } |
320 | } |
321 | spinlock_unlock(&keylock); |
321 | spinlock_unlock(&keylock); |
322 | } |
322 | } |
323 | 323 | ||
324 | /* Called from getc(). */ |
324 | /* Called from getc(). */ |
325 | void i8042_resume(void) |
325 | void i8042_resume(chardev_t *d) |
326 | { |
326 | { |
327 | } |
327 | } |
328 | 328 | ||
329 | /* Called from getc(). */ |
329 | /* Called from getc(). */ |
330 | void i8042_suspend(void) |
330 | void i8042_suspend(chardev_t *d) |
331 | { |
331 | { |
332 | } |
332 | } |
333 | 333 |