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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> |
|
- | 39 | #include <console/console.h> |
|
38 | 40 | ||
39 | /** |
41 | /** |
40 | * i8042 processor driver. |
42 | * i8042 processor driver. |
41 | * It takes care of low-level keyboard functions. |
43 | * It takes care of low-level keyboard functions. |
42 | */ |
44 | */ |
43 | 45 | ||
44 | #define SPECIAL '?' |
46 | #define SPECIAL '?' |
45 | #define KEY_RELEASE 0x80 |
47 | #define KEY_RELEASE 0x80 |
46 | 48 | ||
47 | static void key_released(__u8 sc); |
49 | static void key_released(__u8 sc); |
48 | static void key_pressed(__u8 sc); |
50 | static void key_pressed(__u8 sc); |
49 | 51 | ||
50 | #define PRESSED_SHIFT (1<<0) |
52 | #define PRESSED_SHIFT (1<<0) |
51 | #define PRESSED_CAPSLOCK (1<<1) |
53 | #define PRESSED_CAPSLOCK (1<<1) |
52 | #define LOCKED_CAPSLOCK (1<<0) |
54 | #define LOCKED_CAPSLOCK (1<<0) |
53 | 55 | ||
54 | static spinlock_t keylock; /**< keylock protects keyflags and lockflags. */ |
56 | static spinlock_t keylock; /**< keylock protects keyflags and lockflags. */ |
55 | static volatile int keyflags; /**< Tracking of multiple keypresses. */ |
57 | static volatile int keyflags; /**< Tracking of multiple keypresses. */ |
56 | static volatile int lockflags; /**< Tracking of multiple keys lockings. */ |
58 | static volatile int lockflags; /**< Tracking of multiple keys lockings. */ |
57 | 59 | ||
- | 60 | static void i8042_suspend(void); |
|
- | 61 | static void i8042_resume(void); |
|
- | 62 | ||
- | 63 | static chardev_t kbrd; |
|
- | 64 | static chardev_operations_t ops = { |
|
- | 65 | .suspend = i8042_suspend, |
|
- | 66 | .resume = i8042_resume |
|
- | 67 | }; |
|
- | 68 | ||
58 | /** Primary meaning of scancodes. */ |
69 | /** Primary meaning of scancodes. */ |
59 | static char sc_primary_map[] = { |
70 | static char sc_primary_map[] = { |
60 | SPECIAL, /* 0x00 */ |
71 | SPECIAL, /* 0x00 */ |
61 | SPECIAL, /* 0x01 - Esc */ |
72 | SPECIAL, /* 0x01 - Esc */ |
62 | '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=', |
73 | '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=', |
63 | SPECIAL, /* 0x0e - Backspace */ |
74 | SPECIAL, /* 0x0e - Backspace */ |
64 | '\t', 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']', '\n', |
75 | '\t', 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']', '\n', |
65 | SPECIAL, /* 0x1d - LCtrl */ |
76 | SPECIAL, /* 0x1d - LCtrl */ |
66 | 'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'', |
77 | 'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'', |
67 | '`', |
78 | '`', |
68 | SPECIAL, /* 0x2a - LShift */ |
79 | SPECIAL, /* 0x2a - LShift */ |
69 | '\\', |
80 | '\\', |
70 | 'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/', |
81 | 'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/', |
71 | SPECIAL, /* 0x36 - RShift */ |
82 | SPECIAL, /* 0x36 - RShift */ |
72 | '*', |
83 | '*', |
73 | SPECIAL, /* 0x38 - LAlt */ |
84 | SPECIAL, /* 0x38 - LAlt */ |
74 | ' ', |
85 | ' ', |
75 | SPECIAL, /* 0x3a - CapsLock */ |
86 | SPECIAL, /* 0x3a - CapsLock */ |
76 | SPECIAL, /* 0x3b - F1 */ |
87 | SPECIAL, /* 0x3b - F1 */ |
77 | SPECIAL, /* 0x3c - F2 */ |
88 | SPECIAL, /* 0x3c - F2 */ |
78 | SPECIAL, /* 0x3d - F3 */ |
89 | SPECIAL, /* 0x3d - F3 */ |
79 | SPECIAL, /* 0x3e - F4 */ |
90 | SPECIAL, /* 0x3e - F4 */ |
80 | SPECIAL, /* 0x3f - F5 */ |
91 | SPECIAL, /* 0x3f - F5 */ |
81 | SPECIAL, /* 0x40 - F6 */ |
92 | SPECIAL, /* 0x40 - F6 */ |
82 | SPECIAL, /* 0x41 - F7 */ |
93 | SPECIAL, /* 0x41 - F7 */ |
83 | SPECIAL, /* 0x42 - F8 */ |
94 | SPECIAL, /* 0x42 - F8 */ |
84 | SPECIAL, /* 0x43 - F9 */ |
95 | SPECIAL, /* 0x43 - F9 */ |
85 | SPECIAL, /* 0x44 - F10 */ |
96 | SPECIAL, /* 0x44 - F10 */ |
86 | SPECIAL, /* 0x45 - NumLock */ |
97 | SPECIAL, /* 0x45 - NumLock */ |
87 | SPECIAL, /* 0x46 - ScrollLock */ |
98 | SPECIAL, /* 0x46 - ScrollLock */ |
88 | '7', '8', '9', '-', |
99 | '7', '8', '9', '-', |
89 | '4', '5', '6', '+', |
100 | '4', '5', '6', '+', |
90 | '1', '2', '3', |
101 | '1', '2', '3', |
91 | '0', '.', |
102 | '0', '.', |
92 | SPECIAL, /* 0x54 - Alt-SysRq */ |
103 | SPECIAL, /* 0x54 - Alt-SysRq */ |
93 | SPECIAL, /* 0x55 - F11/F12/PF1/FN */ |
104 | SPECIAL, /* 0x55 - F11/F12/PF1/FN */ |
94 | SPECIAL, /* 0x56 - unlabelled key next to LAlt */ |
105 | SPECIAL, /* 0x56 - unlabelled key next to LAlt */ |
95 | SPECIAL, /* 0x57 - F11 */ |
106 | SPECIAL, /* 0x57 - F11 */ |
96 | SPECIAL, /* 0x58 - F12 */ |
107 | SPECIAL, /* 0x58 - F12 */ |
97 | SPECIAL, /* 0x59 */ |
108 | SPECIAL, /* 0x59 */ |
98 | SPECIAL, /* 0x5a */ |
109 | SPECIAL, /* 0x5a */ |
99 | SPECIAL, /* 0x5b */ |
110 | SPECIAL, /* 0x5b */ |
100 | SPECIAL, /* 0x5c */ |
111 | SPECIAL, /* 0x5c */ |
101 | SPECIAL, /* 0x5d */ |
112 | SPECIAL, /* 0x5d */ |
102 | SPECIAL, /* 0x5e */ |
113 | SPECIAL, /* 0x5e */ |
103 | SPECIAL, /* 0x5f */ |
114 | SPECIAL, /* 0x5f */ |
104 | SPECIAL, /* 0x60 */ |
115 | SPECIAL, /* 0x60 */ |
105 | SPECIAL, /* 0x61 */ |
116 | SPECIAL, /* 0x61 */ |
106 | SPECIAL, /* 0x62 */ |
117 | SPECIAL, /* 0x62 */ |
107 | SPECIAL, /* 0x63 */ |
118 | SPECIAL, /* 0x63 */ |
108 | SPECIAL, /* 0x64 */ |
119 | SPECIAL, /* 0x64 */ |
109 | SPECIAL, /* 0x65 */ |
120 | SPECIAL, /* 0x65 */ |
110 | SPECIAL, /* 0x66 */ |
121 | SPECIAL, /* 0x66 */ |
111 | SPECIAL, /* 0x67 */ |
122 | SPECIAL, /* 0x67 */ |
112 | SPECIAL, /* 0x68 */ |
123 | SPECIAL, /* 0x68 */ |
113 | SPECIAL, /* 0x69 */ |
124 | SPECIAL, /* 0x69 */ |
114 | SPECIAL, /* 0x6a */ |
125 | SPECIAL, /* 0x6a */ |
115 | SPECIAL, /* 0x6b */ |
126 | SPECIAL, /* 0x6b */ |
116 | SPECIAL, /* 0x6c */ |
127 | SPECIAL, /* 0x6c */ |
117 | SPECIAL, /* 0x6d */ |
128 | SPECIAL, /* 0x6d */ |
118 | SPECIAL, /* 0x6e */ |
129 | SPECIAL, /* 0x6e */ |
119 | SPECIAL, /* 0x6f */ |
130 | SPECIAL, /* 0x6f */ |
120 | SPECIAL, /* 0x70 */ |
131 | SPECIAL, /* 0x70 */ |
121 | SPECIAL, /* 0x71 */ |
132 | SPECIAL, /* 0x71 */ |
122 | SPECIAL, /* 0x72 */ |
133 | SPECIAL, /* 0x72 */ |
123 | SPECIAL, /* 0x73 */ |
134 | SPECIAL, /* 0x73 */ |
124 | SPECIAL, /* 0x74 */ |
135 | SPECIAL, /* 0x74 */ |
125 | SPECIAL, /* 0x75 */ |
136 | SPECIAL, /* 0x75 */ |
126 | SPECIAL, /* 0x76 */ |
137 | SPECIAL, /* 0x76 */ |
127 | SPECIAL, /* 0x77 */ |
138 | SPECIAL, /* 0x77 */ |
128 | SPECIAL, /* 0x78 */ |
139 | SPECIAL, /* 0x78 */ |
129 | SPECIAL, /* 0x79 */ |
140 | SPECIAL, /* 0x79 */ |
130 | SPECIAL, /* 0x7a */ |
141 | SPECIAL, /* 0x7a */ |
131 | SPECIAL, /* 0x7b */ |
142 | SPECIAL, /* 0x7b */ |
132 | SPECIAL, /* 0x7c */ |
143 | SPECIAL, /* 0x7c */ |
133 | SPECIAL, /* 0x7d */ |
144 | SPECIAL, /* 0x7d */ |
134 | SPECIAL, /* 0x7e */ |
145 | SPECIAL, /* 0x7e */ |
135 | SPECIAL, /* 0x7f */ |
146 | SPECIAL, /* 0x7f */ |
136 | }; |
147 | }; |
137 | 148 | ||
138 | /** Secondary meaning of scancodes. */ |
149 | /** Secondary meaning of scancodes. */ |
139 | static char sc_secondary_map[] = { |
150 | static char sc_secondary_map[] = { |
140 | SPECIAL, /* 0x00 */ |
151 | SPECIAL, /* 0x00 */ |
141 | SPECIAL, /* 0x01 - Esc */ |
152 | SPECIAL, /* 0x01 - Esc */ |
142 | '!', '@', '#', '$', '%', '^', '&', '*', '(', ')', '_', '+', |
153 | '!', '@', '#', '$', '%', '^', '&', '*', '(', ')', '_', '+', |
143 | SPECIAL, /* 0x0e - Backspace */ |
154 | SPECIAL, /* 0x0e - Backspace */ |
144 | '\t', 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '{', '}', '\n', |
155 | '\t', 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '{', '}', '\n', |
145 | SPECIAL, /* 0x1d - LCtrl */ |
156 | SPECIAL, /* 0x1d - LCtrl */ |
146 | 'A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', '"', |
157 | 'A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', '"', |
147 | '~', |
158 | '~', |
148 | SPECIAL, /* 0x2a - LShift */ |
159 | SPECIAL, /* 0x2a - LShift */ |
149 | '|', |
160 | '|', |
150 | 'Z', 'X', 'C', 'V', 'B', 'N', 'M', '<', '>', '?', |
161 | 'Z', 'X', 'C', 'V', 'B', 'N', 'M', '<', '>', '?', |
151 | SPECIAL, /* 0x36 - RShift */ |
162 | SPECIAL, /* 0x36 - RShift */ |
152 | '*', |
163 | '*', |
153 | SPECIAL, /* 0x38 - LAlt */ |
164 | SPECIAL, /* 0x38 - LAlt */ |
154 | ' ', |
165 | ' ', |
155 | SPECIAL, /* 0x3a - CapsLock */ |
166 | SPECIAL, /* 0x3a - CapsLock */ |
156 | SPECIAL, /* 0x3b - F1 */ |
167 | SPECIAL, /* 0x3b - F1 */ |
157 | SPECIAL, /* 0x3c - F2 */ |
168 | SPECIAL, /* 0x3c - F2 */ |
158 | SPECIAL, /* 0x3d - F3 */ |
169 | SPECIAL, /* 0x3d - F3 */ |
159 | SPECIAL, /* 0x3e - F4 */ |
170 | SPECIAL, /* 0x3e - F4 */ |
160 | SPECIAL, /* 0x3f - F5 */ |
171 | SPECIAL, /* 0x3f - F5 */ |
161 | SPECIAL, /* 0x40 - F6 */ |
172 | SPECIAL, /* 0x40 - F6 */ |
162 | SPECIAL, /* 0x41 - F7 */ |
173 | SPECIAL, /* 0x41 - F7 */ |
163 | SPECIAL, /* 0x42 - F8 */ |
174 | SPECIAL, /* 0x42 - F8 */ |
164 | SPECIAL, /* 0x43 - F9 */ |
175 | SPECIAL, /* 0x43 - F9 */ |
165 | SPECIAL, /* 0x44 - F10 */ |
176 | SPECIAL, /* 0x44 - F10 */ |
166 | SPECIAL, /* 0x45 - NumLock */ |
177 | SPECIAL, /* 0x45 - NumLock */ |
167 | SPECIAL, /* 0x46 - ScrollLock */ |
178 | SPECIAL, /* 0x46 - ScrollLock */ |
168 | '7', '8', '9', '-', |
179 | '7', '8', '9', '-', |
169 | '4', '5', '6', '+', |
180 | '4', '5', '6', '+', |
170 | '1', '2', '3', |
181 | '1', '2', '3', |
171 | '0', '.', |
182 | '0', '.', |
172 | SPECIAL, /* 0x54 - Alt-SysRq */ |
183 | SPECIAL, /* 0x54 - Alt-SysRq */ |
173 | SPECIAL, /* 0x55 - F11/F12/PF1/FN */ |
184 | SPECIAL, /* 0x55 - F11/F12/PF1/FN */ |
174 | SPECIAL, /* 0x56 - unlabelled key next to LAlt */ |
185 | SPECIAL, /* 0x56 - unlabelled key next to LAlt */ |
175 | SPECIAL, /* 0x57 - F11 */ |
186 | SPECIAL, /* 0x57 - F11 */ |
176 | SPECIAL, /* 0x58 - F12 */ |
187 | SPECIAL, /* 0x58 - F12 */ |
177 | SPECIAL, /* 0x59 */ |
188 | SPECIAL, /* 0x59 */ |
178 | SPECIAL, /* 0x5a */ |
189 | SPECIAL, /* 0x5a */ |
179 | SPECIAL, /* 0x5b */ |
190 | SPECIAL, /* 0x5b */ |
180 | SPECIAL, /* 0x5c */ |
191 | SPECIAL, /* 0x5c */ |
181 | SPECIAL, /* 0x5d */ |
192 | SPECIAL, /* 0x5d */ |
182 | SPECIAL, /* 0x5e */ |
193 | SPECIAL, /* 0x5e */ |
183 | SPECIAL, /* 0x5f */ |
194 | SPECIAL, /* 0x5f */ |
184 | SPECIAL, /* 0x60 */ |
195 | SPECIAL, /* 0x60 */ |
185 | SPECIAL, /* 0x61 */ |
196 | SPECIAL, /* 0x61 */ |
186 | SPECIAL, /* 0x62 */ |
197 | SPECIAL, /* 0x62 */ |
187 | SPECIAL, /* 0x63 */ |
198 | SPECIAL, /* 0x63 */ |
188 | SPECIAL, /* 0x64 */ |
199 | SPECIAL, /* 0x64 */ |
189 | SPECIAL, /* 0x65 */ |
200 | SPECIAL, /* 0x65 */ |
190 | SPECIAL, /* 0x66 */ |
201 | SPECIAL, /* 0x66 */ |
191 | SPECIAL, /* 0x67 */ |
202 | SPECIAL, /* 0x67 */ |
192 | SPECIAL, /* 0x68 */ |
203 | SPECIAL, /* 0x68 */ |
193 | SPECIAL, /* 0x69 */ |
204 | SPECIAL, /* 0x69 */ |
194 | SPECIAL, /* 0x6a */ |
205 | SPECIAL, /* 0x6a */ |
195 | SPECIAL, /* 0x6b */ |
206 | SPECIAL, /* 0x6b */ |
196 | SPECIAL, /* 0x6c */ |
207 | SPECIAL, /* 0x6c */ |
197 | SPECIAL, /* 0x6d */ |
208 | SPECIAL, /* 0x6d */ |
198 | SPECIAL, /* 0x6e */ |
209 | SPECIAL, /* 0x6e */ |
199 | SPECIAL, /* 0x6f */ |
210 | SPECIAL, /* 0x6f */ |
200 | SPECIAL, /* 0x70 */ |
211 | SPECIAL, /* 0x70 */ |
201 | SPECIAL, /* 0x71 */ |
212 | SPECIAL, /* 0x71 */ |
202 | SPECIAL, /* 0x72 */ |
213 | SPECIAL, /* 0x72 */ |
203 | SPECIAL, /* 0x73 */ |
214 | SPECIAL, /* 0x73 */ |
204 | SPECIAL, /* 0x74 */ |
215 | SPECIAL, /* 0x74 */ |
205 | SPECIAL, /* 0x75 */ |
216 | SPECIAL, /* 0x75 */ |
206 | SPECIAL, /* 0x76 */ |
217 | SPECIAL, /* 0x76 */ |
207 | SPECIAL, /* 0x77 */ |
218 | SPECIAL, /* 0x77 */ |
208 | SPECIAL, /* 0x78 */ |
219 | SPECIAL, /* 0x78 */ |
209 | SPECIAL, /* 0x79 */ |
220 | SPECIAL, /* 0x79 */ |
210 | SPECIAL, /* 0x7a */ |
221 | SPECIAL, /* 0x7a */ |
211 | SPECIAL, /* 0x7b */ |
222 | SPECIAL, /* 0x7b */ |
212 | SPECIAL, /* 0x7c */ |
223 | SPECIAL, /* 0x7c */ |
213 | SPECIAL, /* 0x7d */ |
224 | SPECIAL, /* 0x7d */ |
214 | SPECIAL, /* 0x7e */ |
225 | SPECIAL, /* 0x7e */ |
215 | SPECIAL, /* 0x7f */ |
226 | SPECIAL, /* 0x7f */ |
216 | }; |
227 | }; |
217 | 228 | ||
218 | /** Initialize i8042. */ |
229 | /** Initialize i8042. */ |
219 | void i8042_init(void) |
230 | void i8042_init(void) |
220 | { |
231 | { |
221 | trap_register(VECTOR_KBD, i8042_interrupt); |
232 | trap_register(VECTOR_KBD, i8042_interrupt); |
222 | spinlock_initialize(&keylock); |
233 | spinlock_initialize(&keylock); |
- | 234 | chardev_initialize(&kbrd, &ops); |
|
- | 235 | stdin = &kbrd; |
|
223 | } |
236 | } |
224 | 237 | ||
225 | /** Process i8042 interrupt. |
238 | /** Process i8042 interrupt. |
226 | * |
239 | * |
227 | * @param n Interrupt vector. |
240 | * @param n Interrupt vector. |
228 | * @param stack Interrupted stack. |
241 | * @param stack Interrupted stack. |
229 | */ |
242 | */ |
230 | void i8042_interrupt(__u8 n, __native stack[]) |
243 | void i8042_interrupt(__u8 n, __native stack[]) |
231 | { |
244 | { |
232 | __u8 x; |
245 | __u8 x; |
233 | 246 | ||
234 | trap_virtual_eoi(); |
247 | trap_virtual_eoi(); |
235 | x = inb(0x60); |
248 | x = inb(0x60); |
236 | if (x & KEY_RELEASE) |
249 | if (x & KEY_RELEASE) |
237 | key_released(x ^ KEY_RELEASE); |
250 | key_released(x ^ KEY_RELEASE); |
238 | else |
251 | else |
239 | key_pressed(x); |
252 | key_pressed(x); |
240 | } |
253 | } |
241 | 254 | ||
242 | /** Process release of key. |
255 | /** Process release of key. |
243 | * |
256 | * |
244 | * @param sc Scancode of the key being released. |
257 | * @param sc Scancode of the key being released. |
245 | */ |
258 | */ |
246 | void key_released(__u8 sc) |
259 | void key_released(__u8 sc) |
247 | { |
260 | { |
248 | spinlock_lock(&keylock); |
261 | spinlock_lock(&keylock); |
249 | switch (sc) { |
262 | switch (sc) { |
250 | case SC_LSHIFT: |
263 | case SC_LSHIFT: |
251 | case SC_RSHIFT: |
264 | case SC_RSHIFT: |
252 | keyflags &= ~PRESSED_SHIFT; |
265 | keyflags &= ~PRESSED_SHIFT; |
253 | break; |
266 | break; |
254 | case SC_CAPSLOCK: |
267 | case SC_CAPSLOCK: |
255 | keyflags &= ~PRESSED_CAPSLOCK; |
268 | keyflags &= ~PRESSED_CAPSLOCK; |
256 | if (lockflags & LOCKED_CAPSLOCK) |
269 | if (lockflags & LOCKED_CAPSLOCK) |
257 | lockflags &= ~LOCKED_CAPSLOCK; |
270 | lockflags &= ~LOCKED_CAPSLOCK; |
258 | else |
271 | else |
259 | lockflags |= LOCKED_CAPSLOCK; |
272 | lockflags |= LOCKED_CAPSLOCK; |
260 | break; |
273 | break; |
261 | default: |
274 | default: |
262 | break; |
275 | break; |
263 | } |
276 | } |
264 | spinlock_unlock(&keylock); |
277 | spinlock_unlock(&keylock); |
265 | } |
278 | } |
266 | 279 | ||
267 | /** Process keypress. |
280 | /** Process keypress. |
268 | * |
281 | * |
269 | * @param sc Scancode of the key being pressed. |
282 | * @param sc Scancode of the key being pressed. |
270 | */ |
283 | */ |
271 | void key_pressed(__u8 sc) |
284 | void key_pressed(__u8 sc) |
272 | { |
285 | { |
273 | char *map = sc_primary_map; |
286 | char *map = sc_primary_map; |
274 | char ascii = sc_primary_map[sc]; |
287 | char ascii = sc_primary_map[sc]; |
275 | bool shift, capslock; |
288 | bool shift, capslock; |
276 | bool letter = false; |
289 | bool letter = false; |
277 | 290 | ||
278 | spinlock_lock(&keylock); |
291 | spinlock_lock(&keylock); |
279 | switch (sc) { |
292 | switch (sc) { |
280 | case SC_LSHIFT: |
293 | case SC_LSHIFT: |
281 | case SC_RSHIFT: |
294 | case SC_RSHIFT: |
282 | keyflags |= PRESSED_SHIFT; |
295 | keyflags |= PRESSED_SHIFT; |
283 | break; |
296 | break; |
284 | case SC_CAPSLOCK: |
297 | case SC_CAPSLOCK: |
285 | keyflags |= PRESSED_CAPSLOCK; |
298 | keyflags |= PRESSED_CAPSLOCK; |
286 | break; |
299 | break; |
287 | default: |
300 | default: |
288 | letter = (ascii >= 'a') && (ascii <= 'z'); |
301 | letter = (ascii >= 'a') && (ascii <= 'z'); |
289 | capslock = (keyflags & PRESSED_CAPSLOCK) || (lockflags & LOCKED_CAPSLOCK); |
302 | capslock = (keyflags & PRESSED_CAPSLOCK) || (lockflags & LOCKED_CAPSLOCK); |
290 | shift = keyflags & PRESSED_SHIFT; |
303 | shift = keyflags & PRESSED_SHIFT; |
291 | if (letter && capslock) |
304 | if (letter && capslock) |
292 | shift = !shift; |
305 | shift = !shift; |
293 | if (shift) |
306 | if (shift) |
294 | map = sc_secondary_map; |
307 | map = sc_secondary_map; |
295 | putchar(map[sc]); |
308 | chardev_push_character(&kbrd, map[sc]); |
296 | break; |
309 | break; |
297 | } |
310 | } |
298 | spinlock_unlock(&keylock); |
311 | spinlock_unlock(&keylock); |
299 | } |
312 | } |
- | 313 | ||
- | 314 | /* Called from getc(). */ |
|
- | 315 | void i8042_resume(void) |
|
- | 316 | { |
|
- | 317 | } |
|
- | 318 | ||
- | 319 | /* Called from getc(). */ |
|
- | 320 | void i8042_suspend(void) |
|
- | 321 | { |
|
- | 322 | } |
|
300 | 323 |