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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * linux/drivers/char/keyboard.c | |
3 | * | |
4 | * Written for linux by Johan Myreen as a translation from | |
5 | * the assembly version by Linus (with diacriticals added) | |
6 | * | |
7 | * Some additional features added by Christoph Niemann (ChN), March 1993 | |
8 | * | |
9 | * Loadable keymaps by Risto Kankkunen, May 1993 | |
10 | * | |
11 | * Diacriticals redone & other small changes, aeb@cwi.nl, June 1993 | |
12 | * Added decr/incr_console, dynamic keymaps, Unicode support, | |
13 | * dynamic function/string keys, led setting, Sept 1994 | |
14 | * `Sticky' modifier keys, 951006. | |
15 | * | |
16 | * 11-11-96: SAK should now work in the raw mode (Martin Mares) | |
fe1e8604 | 17 | * |
1da177e4 LT |
18 | * Modified to provide 'generic' keyboard support by Hamish Macdonald |
19 | * Merge with the m68k keyboard driver and split-off of the PC low-level | |
20 | * parts by Geert Uytterhoeven, May 1997 | |
21 | * | |
22 | * 27-05-97: Added support for the Magic SysRq Key (Martin Mares) | |
23 | * 30-07-98: Dead keys redone, aeb@cwi.nl. | |
24 | * 21-08-02: Converted to input API, major cleanup. (Vojtech Pavlik) | |
25 | */ | |
26 | ||
759448f4 | 27 | #include <linux/consolemap.h> |
1da177e4 LT |
28 | #include <linux/module.h> |
29 | #include <linux/sched.h> | |
30 | #include <linux/tty.h> | |
31 | #include <linux/tty_flip.h> | |
32 | #include <linux/mm.h> | |
33 | #include <linux/string.h> | |
34 | #include <linux/init.h> | |
35 | #include <linux/slab.h> | |
7d12e780 | 36 | #include <linux/irq.h> |
1da177e4 LT |
37 | |
38 | #include <linux/kbd_kern.h> | |
39 | #include <linux/kbd_diacr.h> | |
40 | #include <linux/vt_kern.h> | |
41 | #include <linux/sysrq.h> | |
42 | #include <linux/input.h> | |
83cc5ed3 | 43 | #include <linux/reboot.h> |
41ab4396 | 44 | #include <linux/notifier.h> |
1da177e4 | 45 | |
1da177e4 LT |
46 | extern void ctrl_alt_del(void); |
47 | ||
48 | /* | |
49 | * Exported functions/variables | |
50 | */ | |
51 | ||
52 | #define KBD_DEFMODE ((1 << VC_REPEAT) | (1 << VC_META)) | |
53 | ||
54 | /* | |
55 | * Some laptops take the 789uiojklm,. keys as number pad when NumLock is on. | |
56 | * This seems a good reason to start with NumLock off. On HIL keyboards | |
fe1e8604 | 57 | * of PARISC machines however there is no NumLock key and everyone expects the keypad |
1da177e4 LT |
58 | * to be used for numbers. |
59 | */ | |
60 | ||
61 | #if defined(CONFIG_PARISC) && (defined(CONFIG_KEYBOARD_HIL) || defined(CONFIG_KEYBOARD_HIL_OLD)) | |
62 | #define KBD_DEFLEDS (1 << VC_NUMLOCK) | |
63 | #else | |
64 | #define KBD_DEFLEDS 0 | |
65 | #endif | |
66 | ||
67 | #define KBD_DEFLOCK 0 | |
68 | ||
69 | void compute_shiftstate(void); | |
70 | ||
71 | /* | |
72 | * Handler Tables. | |
73 | */ | |
74 | ||
75 | #define K_HANDLERS\ | |
76 | k_self, k_fn, k_spec, k_pad,\ | |
77 | k_dead, k_cons, k_cur, k_shift,\ | |
78 | k_meta, k_ascii, k_lock, k_lowercase,\ | |
b9ec4e10 | 79 | k_slock, k_dead2, k_brl, k_ignore |
1da177e4 | 80 | |
fe1e8604 | 81 | typedef void (k_handler_fn)(struct vc_data *vc, unsigned char value, |
7d12e780 | 82 | char up_flag); |
1da177e4 | 83 | static k_handler_fn K_HANDLERS; |
41ab4396 ST |
84 | k_handler_fn *k_handler[16] = { K_HANDLERS }; |
85 | EXPORT_SYMBOL_GPL(k_handler); | |
1da177e4 LT |
86 | |
87 | #define FN_HANDLERS\ | |
fe1e8604 DT |
88 | fn_null, fn_enter, fn_show_ptregs, fn_show_mem,\ |
89 | fn_show_state, fn_send_intr, fn_lastcons, fn_caps_toggle,\ | |
90 | fn_num, fn_hold, fn_scroll_forw, fn_scroll_back,\ | |
91 | fn_boot_it, fn_caps_on, fn_compose, fn_SAK,\ | |
92 | fn_dec_console, fn_inc_console, fn_spawn_con, fn_bare_num | |
1da177e4 | 93 | |
7d12e780 | 94 | typedef void (fn_handler_fn)(struct vc_data *vc); |
1da177e4 LT |
95 | static fn_handler_fn FN_HANDLERS; |
96 | static fn_handler_fn *fn_handler[] = { FN_HANDLERS }; | |
97 | ||
98 | /* | |
99 | * Variables exported for vt_ioctl.c | |
100 | */ | |
101 | ||
102 | /* maximum values each key_handler can handle */ | |
103 | const int max_vals[] = { | |
104 | 255, ARRAY_SIZE(func_table) - 1, ARRAY_SIZE(fn_handler) - 1, NR_PAD - 1, | |
105 | NR_DEAD - 1, 255, 3, NR_SHIFT - 1, 255, NR_ASCII - 1, NR_LOCK - 1, | |
b9ec4e10 | 106 | 255, NR_LOCK - 1, 255, NR_BRL - 1 |
1da177e4 LT |
107 | }; |
108 | ||
109 | const int NR_TYPES = ARRAY_SIZE(max_vals); | |
110 | ||
111 | struct kbd_struct kbd_table[MAX_NR_CONSOLES]; | |
112 | static struct kbd_struct *kbd = kbd_table; | |
1da177e4 | 113 | |
81af8d67 | 114 | struct vt_spawn_console vt_spawn_con = { |
ccc94256 | 115 | .lock = __SPIN_LOCK_UNLOCKED(vt_spawn_con.lock), |
81af8d67 EB |
116 | .pid = NULL, |
117 | .sig = 0, | |
118 | }; | |
1da177e4 LT |
119 | |
120 | /* | |
121 | * Variables exported for vt.c | |
122 | */ | |
123 | ||
124 | int shift_state = 0; | |
125 | ||
126 | /* | |
127 | * Internal Data. | |
128 | */ | |
129 | ||
130 | static struct input_handler kbd_handler; | |
7b19ada2 | 131 | static unsigned long key_down[BITS_TO_LONGS(KEY_CNT)]; /* keyboard key bitmap */ |
1da177e4 LT |
132 | static unsigned char shift_down[NR_SHIFT]; /* shift state counters.. */ |
133 | static int dead_key_next; | |
134 | static int npadch = -1; /* -1 or number assembled on pad */ | |
b9ec4e10 | 135 | static unsigned int diacr; |
1da177e4 LT |
136 | static char rep; /* flag telling character repeat */ |
137 | ||
138 | static unsigned char ledstate = 0xff; /* undefined */ | |
139 | static unsigned char ledioctl; | |
140 | ||
141 | static struct ledptr { | |
142 | unsigned int *addr; | |
143 | unsigned int mask; | |
144 | unsigned char valid:1; | |
145 | } ledptrs[3]; | |
146 | ||
147 | /* Simple translation table for the SysRq keys */ | |
148 | ||
149 | #ifdef CONFIG_MAGIC_SYSRQ | |
150 | unsigned char kbd_sysrq_xlate[KEY_MAX + 1] = | |
151 | "\000\0331234567890-=\177\t" /* 0x00 - 0x0f */ | |
152 | "qwertyuiop[]\r\000as" /* 0x10 - 0x1f */ | |
153 | "dfghjkl;'`\000\\zxcv" /* 0x20 - 0x2f */ | |
154 | "bnm,./\000*\000 \000\201\202\203\204\205" /* 0x30 - 0x3f */ | |
155 | "\206\207\210\211\212\000\000789-456+1" /* 0x40 - 0x4f */ | |
156 | "230\177\000\000\213\214\000\000\000\000\000\000\000\000\000\000" /* 0x50 - 0x5f */ | |
157 | "\r\000/"; /* 0x60 - 0x6f */ | |
158 | static int sysrq_down; | |
d2be8ee5 | 159 | static int sysrq_alt_use; |
1da177e4 LT |
160 | #endif |
161 | static int sysrq_alt; | |
162 | ||
41ab4396 ST |
163 | /* |
164 | * Notifier list for console keyboard events | |
165 | */ | |
166 | static ATOMIC_NOTIFIER_HEAD(keyboard_notifier_list); | |
167 | ||
168 | int register_keyboard_notifier(struct notifier_block *nb) | |
169 | { | |
170 | return atomic_notifier_chain_register(&keyboard_notifier_list, nb); | |
171 | } | |
172 | EXPORT_SYMBOL_GPL(register_keyboard_notifier); | |
173 | ||
174 | int unregister_keyboard_notifier(struct notifier_block *nb) | |
175 | { | |
176 | return atomic_notifier_chain_unregister(&keyboard_notifier_list, nb); | |
177 | } | |
178 | EXPORT_SYMBOL_GPL(unregister_keyboard_notifier); | |
179 | ||
1da177e4 | 180 | /* |
c8e4c772 MR |
181 | * Translation of scancodes to keycodes. We set them on only the first |
182 | * keyboard in the list that accepts the scancode and keycode. | |
183 | * Explanation for not choosing the first attached keyboard anymore: | |
184 | * USB keyboards for example have two event devices: one for all "normal" | |
185 | * keys and one for extra function keys (like "volume up", "make coffee", | |
186 | * etc.). So this means that scancodes for the extra function keys won't | |
187 | * be valid for the first event device, but will be for the second. | |
1da177e4 LT |
188 | */ |
189 | int getkeycode(unsigned int scancode) | |
190 | { | |
c8e4c772 MR |
191 | struct input_handle *handle; |
192 | int keycode; | |
193 | int error = -ENODEV; | |
194 | ||
195 | list_for_each_entry(handle, &kbd_handler.h_list, h_node) { | |
f4f37c8e | 196 | error = input_get_keycode(handle->dev, scancode, &keycode); |
c8e4c772 MR |
197 | if (!error) |
198 | return keycode; | |
1da177e4 LT |
199 | } |
200 | ||
c8e4c772 | 201 | return error; |
1da177e4 LT |
202 | } |
203 | ||
204 | int setkeycode(unsigned int scancode, unsigned int keycode) | |
205 | { | |
c8e4c772 MR |
206 | struct input_handle *handle; |
207 | int error = -ENODEV; | |
208 | ||
209 | list_for_each_entry(handle, &kbd_handler.h_list, h_node) { | |
f4f37c8e | 210 | error = input_set_keycode(handle->dev, scancode, keycode); |
c8e4c772 | 211 | if (!error) |
fe1e8604 | 212 | break; |
1da177e4 LT |
213 | } |
214 | ||
c8e4c772 | 215 | return error; |
1da177e4 LT |
216 | } |
217 | ||
218 | /* | |
fe1e8604 | 219 | * Making beeps and bells. |
1da177e4 LT |
220 | */ |
221 | static void kd_nosound(unsigned long ignored) | |
222 | { | |
c8e4c772 | 223 | struct input_handle *handle; |
1da177e4 | 224 | |
c8e4c772 | 225 | list_for_each_entry(handle, &kbd_handler.h_list, h_node) { |
1da177e4 LT |
226 | if (test_bit(EV_SND, handle->dev->evbit)) { |
227 | if (test_bit(SND_TONE, handle->dev->sndbit)) | |
0e739d28 | 228 | input_inject_event(handle, EV_SND, SND_TONE, 0); |
1da177e4 | 229 | if (test_bit(SND_BELL, handle->dev->sndbit)) |
0e739d28 | 230 | input_inject_event(handle, EV_SND, SND_BELL, 0); |
1da177e4 LT |
231 | } |
232 | } | |
233 | } | |
234 | ||
8d06afab | 235 | static DEFINE_TIMER(kd_mksound_timer, kd_nosound, 0, 0); |
1da177e4 LT |
236 | |
237 | void kd_mksound(unsigned int hz, unsigned int ticks) | |
238 | { | |
fe1e8604 | 239 | struct list_head *node; |
1da177e4 LT |
240 | |
241 | del_timer(&kd_mksound_timer); | |
242 | ||
243 | if (hz) { | |
fe1e8604 | 244 | list_for_each_prev(node, &kbd_handler.h_list) { |
1da177e4 LT |
245 | struct input_handle *handle = to_handle_h(node); |
246 | if (test_bit(EV_SND, handle->dev->evbit)) { | |
247 | if (test_bit(SND_TONE, handle->dev->sndbit)) { | |
0e739d28 | 248 | input_inject_event(handle, EV_SND, SND_TONE, hz); |
1da177e4 LT |
249 | break; |
250 | } | |
251 | if (test_bit(SND_BELL, handle->dev->sndbit)) { | |
0e739d28 | 252 | input_inject_event(handle, EV_SND, SND_BELL, 1); |
1da177e4 LT |
253 | break; |
254 | } | |
255 | } | |
256 | } | |
257 | if (ticks) | |
258 | mod_timer(&kd_mksound_timer, jiffies + ticks); | |
259 | } else | |
260 | kd_nosound(0); | |
261 | } | |
262 | ||
263 | /* | |
264 | * Setting the keyboard rate. | |
265 | */ | |
266 | ||
267 | int kbd_rate(struct kbd_repeat *rep) | |
268 | { | |
269 | struct list_head *node; | |
270 | unsigned int d = 0; | |
271 | unsigned int p = 0; | |
272 | ||
0e739d28 | 273 | list_for_each(node, &kbd_handler.h_list) { |
1da177e4 LT |
274 | struct input_handle *handle = to_handle_h(node); |
275 | struct input_dev *dev = handle->dev; | |
276 | ||
277 | if (test_bit(EV_REP, dev->evbit)) { | |
278 | if (rep->delay > 0) | |
0e739d28 | 279 | input_inject_event(handle, EV_REP, REP_DELAY, rep->delay); |
1da177e4 | 280 | if (rep->period > 0) |
0e739d28 | 281 | input_inject_event(handle, EV_REP, REP_PERIOD, rep->period); |
1da177e4 LT |
282 | d = dev->rep[REP_DELAY]; |
283 | p = dev->rep[REP_PERIOD]; | |
284 | } | |
285 | } | |
286 | rep->delay = d; | |
287 | rep->period = p; | |
288 | return 0; | |
289 | } | |
290 | ||
291 | /* | |
292 | * Helper Functions. | |
293 | */ | |
294 | static void put_queue(struct vc_data *vc, int ch) | |
295 | { | |
296 | struct tty_struct *tty = vc->vc_tty; | |
297 | ||
298 | if (tty) { | |
299 | tty_insert_flip_char(tty, ch, 0); | |
300 | con_schedule_flip(tty); | |
301 | } | |
302 | } | |
303 | ||
304 | static void puts_queue(struct vc_data *vc, char *cp) | |
305 | { | |
306 | struct tty_struct *tty = vc->vc_tty; | |
307 | ||
308 | if (!tty) | |
309 | return; | |
310 | ||
311 | while (*cp) { | |
312 | tty_insert_flip_char(tty, *cp, 0); | |
313 | cp++; | |
314 | } | |
315 | con_schedule_flip(tty); | |
316 | } | |
317 | ||
318 | static void applkey(struct vc_data *vc, int key, char mode) | |
319 | { | |
320 | static char buf[] = { 0x1b, 'O', 0x00, 0x00 }; | |
321 | ||
322 | buf[1] = (mode ? 'O' : '['); | |
323 | buf[2] = key; | |
324 | puts_queue(vc, buf); | |
325 | } | |
326 | ||
327 | /* | |
328 | * Many other routines do put_queue, but I think either | |
329 | * they produce ASCII, or they produce some user-assigned | |
330 | * string, and in both cases we might assume that it is | |
759448f4 | 331 | * in utf-8 already. |
1da177e4 | 332 | */ |
759448f4 | 333 | static void to_utf8(struct vc_data *vc, uint c) |
1da177e4 LT |
334 | { |
335 | if (c < 0x80) | |
336 | /* 0******* */ | |
337 | put_queue(vc, c); | |
fe1e8604 | 338 | else if (c < 0x800) { |
1da177e4 | 339 | /* 110***** 10****** */ |
fe1e8604 | 340 | put_queue(vc, 0xc0 | (c >> 6)); |
1da177e4 | 341 | put_queue(vc, 0x80 | (c & 0x3f)); |
759448f4 JE |
342 | } else if (c < 0x10000) { |
343 | if (c >= 0xD800 && c < 0xE000) | |
344 | return; | |
345 | if (c == 0xFFFF) | |
346 | return; | |
1da177e4 LT |
347 | /* 1110**** 10****** 10****** */ |
348 | put_queue(vc, 0xe0 | (c >> 12)); | |
349 | put_queue(vc, 0x80 | ((c >> 6) & 0x3f)); | |
350 | put_queue(vc, 0x80 | (c & 0x3f)); | |
759448f4 JE |
351 | } else if (c < 0x110000) { |
352 | /* 11110*** 10****** 10****** 10****** */ | |
353 | put_queue(vc, 0xf0 | (c >> 18)); | |
354 | put_queue(vc, 0x80 | ((c >> 12) & 0x3f)); | |
355 | put_queue(vc, 0x80 | ((c >> 6) & 0x3f)); | |
356 | put_queue(vc, 0x80 | (c & 0x3f)); | |
fe1e8604 | 357 | } |
1da177e4 LT |
358 | } |
359 | ||
fe1e8604 | 360 | /* |
1da177e4 LT |
361 | * Called after returning from RAW mode or when changing consoles - recompute |
362 | * shift_down[] and shift_state from key_down[] maybe called when keymap is | |
363 | * undefined, so that shiftkey release is seen | |
364 | */ | |
365 | void compute_shiftstate(void) | |
366 | { | |
367 | unsigned int i, j, k, sym, val; | |
368 | ||
369 | shift_state = 0; | |
370 | memset(shift_down, 0, sizeof(shift_down)); | |
fe1e8604 | 371 | |
1da177e4 LT |
372 | for (i = 0; i < ARRAY_SIZE(key_down); i++) { |
373 | ||
374 | if (!key_down[i]) | |
375 | continue; | |
376 | ||
377 | k = i * BITS_PER_LONG; | |
378 | ||
379 | for (j = 0; j < BITS_PER_LONG; j++, k++) { | |
380 | ||
381 | if (!test_bit(k, key_down)) | |
382 | continue; | |
383 | ||
384 | sym = U(key_maps[0][k]); | |
385 | if (KTYP(sym) != KT_SHIFT && KTYP(sym) != KT_SLOCK) | |
386 | continue; | |
387 | ||
388 | val = KVAL(sym); | |
389 | if (val == KVAL(K_CAPSSHIFT)) | |
390 | val = KVAL(K_SHIFT); | |
391 | ||
392 | shift_down[val]++; | |
393 | shift_state |= (1 << val); | |
394 | } | |
395 | } | |
396 | } | |
397 | ||
398 | /* | |
399 | * We have a combining character DIACR here, followed by the character CH. | |
400 | * If the combination occurs in the table, return the corresponding value. | |
401 | * Otherwise, if CH is a space or equals DIACR, return DIACR. | |
402 | * Otherwise, conclude that DIACR was not combining after all, | |
403 | * queue it and return CH. | |
404 | */ | |
b9ec4e10 | 405 | static unsigned int handle_diacr(struct vc_data *vc, unsigned int ch) |
1da177e4 | 406 | { |
b9ec4e10 | 407 | unsigned int d = diacr; |
1da177e4 LT |
408 | unsigned int i; |
409 | ||
410 | diacr = 0; | |
411 | ||
b9ec4e10 ST |
412 | if ((d & ~0xff) == BRL_UC_ROW) { |
413 | if ((ch & ~0xff) == BRL_UC_ROW) | |
414 | return d | ch; | |
415 | } else { | |
416 | for (i = 0; i < accent_table_size; i++) | |
417 | if (accent_table[i].diacr == d && accent_table[i].base == ch) | |
418 | return accent_table[i].result; | |
1da177e4 LT |
419 | } |
420 | ||
b9ec4e10 | 421 | if (ch == ' ' || ch == (BRL_UC_ROW|0) || ch == d) |
1da177e4 LT |
422 | return d; |
423 | ||
b9ec4e10 | 424 | if (kbd->kbdmode == VC_UNICODE) |
04c71976 ST |
425 | to_utf8(vc, d); |
426 | else { | |
427 | int c = conv_uni_to_8bit(d); | |
428 | if (c != -1) | |
429 | put_queue(vc, c); | |
430 | } | |
b9ec4e10 | 431 | |
1da177e4 LT |
432 | return ch; |
433 | } | |
434 | ||
435 | /* | |
436 | * Special function handlers | |
437 | */ | |
7d12e780 | 438 | static void fn_enter(struct vc_data *vc) |
1da177e4 LT |
439 | { |
440 | if (diacr) { | |
b9ec4e10 | 441 | if (kbd->kbdmode == VC_UNICODE) |
04c71976 ST |
442 | to_utf8(vc, diacr); |
443 | else { | |
444 | int c = conv_uni_to_8bit(diacr); | |
445 | if (c != -1) | |
446 | put_queue(vc, c); | |
447 | } | |
1da177e4 LT |
448 | diacr = 0; |
449 | } | |
450 | put_queue(vc, 13); | |
451 | if (vc_kbd_mode(kbd, VC_CRLF)) | |
452 | put_queue(vc, 10); | |
453 | } | |
454 | ||
7d12e780 | 455 | static void fn_caps_toggle(struct vc_data *vc) |
1da177e4 LT |
456 | { |
457 | if (rep) | |
458 | return; | |
459 | chg_vc_kbd_led(kbd, VC_CAPSLOCK); | |
460 | } | |
461 | ||
7d12e780 | 462 | static void fn_caps_on(struct vc_data *vc) |
1da177e4 LT |
463 | { |
464 | if (rep) | |
465 | return; | |
466 | set_vc_kbd_led(kbd, VC_CAPSLOCK); | |
467 | } | |
468 | ||
7d12e780 | 469 | static void fn_show_ptregs(struct vc_data *vc) |
1da177e4 | 470 | { |
7d12e780 | 471 | struct pt_regs *regs = get_irq_regs(); |
1da177e4 LT |
472 | if (regs) |
473 | show_regs(regs); | |
474 | } | |
475 | ||
7d12e780 | 476 | static void fn_hold(struct vc_data *vc) |
1da177e4 LT |
477 | { |
478 | struct tty_struct *tty = vc->vc_tty; | |
479 | ||
480 | if (rep || !tty) | |
481 | return; | |
482 | ||
483 | /* | |
484 | * Note: SCROLLOCK will be set (cleared) by stop_tty (start_tty); | |
485 | * these routines are also activated by ^S/^Q. | |
486 | * (And SCROLLOCK can also be set by the ioctl KDSKBLED.) | |
487 | */ | |
488 | if (tty->stopped) | |
489 | start_tty(tty); | |
490 | else | |
491 | stop_tty(tty); | |
492 | } | |
493 | ||
7d12e780 | 494 | static void fn_num(struct vc_data *vc) |
1da177e4 LT |
495 | { |
496 | if (vc_kbd_mode(kbd,VC_APPLIC)) | |
497 | applkey(vc, 'P', 1); | |
498 | else | |
7d12e780 | 499 | fn_bare_num(vc); |
1da177e4 LT |
500 | } |
501 | ||
502 | /* | |
503 | * Bind this to Shift-NumLock if you work in application keypad mode | |
504 | * but want to be able to change the NumLock flag. | |
505 | * Bind this to NumLock if you prefer that the NumLock key always | |
506 | * changes the NumLock flag. | |
507 | */ | |
7d12e780 | 508 | static void fn_bare_num(struct vc_data *vc) |
1da177e4 LT |
509 | { |
510 | if (!rep) | |
511 | chg_vc_kbd_led(kbd, VC_NUMLOCK); | |
512 | } | |
513 | ||
7d12e780 | 514 | static void fn_lastcons(struct vc_data *vc) |
1da177e4 LT |
515 | { |
516 | /* switch to the last used console, ChN */ | |
517 | set_console(last_console); | |
518 | } | |
519 | ||
7d12e780 | 520 | static void fn_dec_console(struct vc_data *vc) |
1da177e4 LT |
521 | { |
522 | int i, cur = fg_console; | |
523 | ||
524 | /* Currently switching? Queue this next switch relative to that. */ | |
525 | if (want_console != -1) | |
526 | cur = want_console; | |
527 | ||
fe1e8604 | 528 | for (i = cur - 1; i != cur; i--) { |
1da177e4 | 529 | if (i == -1) |
fe1e8604 | 530 | i = MAX_NR_CONSOLES - 1; |
1da177e4 LT |
531 | if (vc_cons_allocated(i)) |
532 | break; | |
533 | } | |
534 | set_console(i); | |
535 | } | |
536 | ||
7d12e780 | 537 | static void fn_inc_console(struct vc_data *vc) |
1da177e4 LT |
538 | { |
539 | int i, cur = fg_console; | |
540 | ||
541 | /* Currently switching? Queue this next switch relative to that. */ | |
542 | if (want_console != -1) | |
543 | cur = want_console; | |
544 | ||
545 | for (i = cur+1; i != cur; i++) { | |
546 | if (i == MAX_NR_CONSOLES) | |
547 | i = 0; | |
548 | if (vc_cons_allocated(i)) | |
549 | break; | |
550 | } | |
551 | set_console(i); | |
552 | } | |
553 | ||
7d12e780 | 554 | static void fn_send_intr(struct vc_data *vc) |
1da177e4 LT |
555 | { |
556 | struct tty_struct *tty = vc->vc_tty; | |
557 | ||
558 | if (!tty) | |
559 | return; | |
560 | tty_insert_flip_char(tty, 0, TTY_BREAK); | |
561 | con_schedule_flip(tty); | |
562 | } | |
563 | ||
7d12e780 | 564 | static void fn_scroll_forw(struct vc_data *vc) |
1da177e4 LT |
565 | { |
566 | scrollfront(vc, 0); | |
567 | } | |
568 | ||
7d12e780 | 569 | static void fn_scroll_back(struct vc_data *vc) |
1da177e4 LT |
570 | { |
571 | scrollback(vc, 0); | |
572 | } | |
573 | ||
7d12e780 | 574 | static void fn_show_mem(struct vc_data *vc) |
1da177e4 LT |
575 | { |
576 | show_mem(); | |
577 | } | |
578 | ||
7d12e780 | 579 | static void fn_show_state(struct vc_data *vc) |
1da177e4 LT |
580 | { |
581 | show_state(); | |
582 | } | |
583 | ||
7d12e780 | 584 | static void fn_boot_it(struct vc_data *vc) |
1da177e4 LT |
585 | { |
586 | ctrl_alt_del(); | |
587 | } | |
588 | ||
7d12e780 | 589 | static void fn_compose(struct vc_data *vc) |
1da177e4 LT |
590 | { |
591 | dead_key_next = 1; | |
592 | } | |
593 | ||
7d12e780 | 594 | static void fn_spawn_con(struct vc_data *vc) |
1da177e4 | 595 | { |
81af8d67 EB |
596 | spin_lock(&vt_spawn_con.lock); |
597 | if (vt_spawn_con.pid) | |
598 | if (kill_pid(vt_spawn_con.pid, vt_spawn_con.sig, 1)) { | |
599 | put_pid(vt_spawn_con.pid); | |
600 | vt_spawn_con.pid = NULL; | |
601 | } | |
602 | spin_unlock(&vt_spawn_con.lock); | |
1da177e4 LT |
603 | } |
604 | ||
7d12e780 | 605 | static void fn_SAK(struct vc_data *vc) |
1da177e4 | 606 | { |
8b6312f4 | 607 | struct work_struct *SAK_work = &vc_cons[fg_console].SAK_work; |
8b6312f4 | 608 | schedule_work(SAK_work); |
1da177e4 LT |
609 | } |
610 | ||
7d12e780 | 611 | static void fn_null(struct vc_data *vc) |
1da177e4 LT |
612 | { |
613 | compute_shiftstate(); | |
614 | } | |
615 | ||
616 | /* | |
617 | * Special key handlers | |
618 | */ | |
7d12e780 | 619 | static void k_ignore(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
620 | { |
621 | } | |
622 | ||
7d12e780 | 623 | static void k_spec(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
624 | { |
625 | if (up_flag) | |
626 | return; | |
627 | if (value >= ARRAY_SIZE(fn_handler)) | |
628 | return; | |
fe1e8604 DT |
629 | if ((kbd->kbdmode == VC_RAW || |
630 | kbd->kbdmode == VC_MEDIUMRAW) && | |
1da177e4 LT |
631 | value != KVAL(K_SAK)) |
632 | return; /* SAK is allowed even in raw mode */ | |
7d12e780 | 633 | fn_handler[value](vc); |
1da177e4 LT |
634 | } |
635 | ||
7d12e780 | 636 | static void k_lowercase(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
637 | { |
638 | printk(KERN_ERR "keyboard.c: k_lowercase was called - impossible\n"); | |
639 | } | |
640 | ||
7d12e780 | 641 | static void k_unicode(struct vc_data *vc, unsigned int value, char up_flag) |
1da177e4 LT |
642 | { |
643 | if (up_flag) | |
644 | return; /* no action, if this is a key release */ | |
645 | ||
646 | if (diacr) | |
647 | value = handle_diacr(vc, value); | |
648 | ||
649 | if (dead_key_next) { | |
650 | dead_key_next = 0; | |
651 | diacr = value; | |
652 | return; | |
653 | } | |
b9ec4e10 | 654 | if (kbd->kbdmode == VC_UNICODE) |
04c71976 ST |
655 | to_utf8(vc, value); |
656 | else { | |
657 | int c = conv_uni_to_8bit(value); | |
658 | if (c != -1) | |
659 | put_queue(vc, c); | |
660 | } | |
1da177e4 LT |
661 | } |
662 | ||
663 | /* | |
664 | * Handle dead key. Note that we now may have several | |
665 | * dead keys modifying the same character. Very useful | |
666 | * for Vietnamese. | |
667 | */ | |
7d12e780 | 668 | static void k_deadunicode(struct vc_data *vc, unsigned int value, char up_flag) |
1da177e4 LT |
669 | { |
670 | if (up_flag) | |
671 | return; | |
672 | diacr = (diacr ? handle_diacr(vc, value) : value); | |
673 | } | |
674 | ||
7d12e780 | 675 | static void k_self(struct vc_data *vc, unsigned char value, char up_flag) |
b9ec4e10 | 676 | { |
04c71976 ST |
677 | unsigned int uni; |
678 | if (kbd->kbdmode == VC_UNICODE) | |
679 | uni = value; | |
680 | else | |
681 | uni = conv_8bit_to_uni(value); | |
682 | k_unicode(vc, uni, up_flag); | |
b9ec4e10 ST |
683 | } |
684 | ||
7d12e780 | 685 | static void k_dead2(struct vc_data *vc, unsigned char value, char up_flag) |
b9ec4e10 | 686 | { |
7d12e780 | 687 | k_deadunicode(vc, value, up_flag); |
b9ec4e10 ST |
688 | } |
689 | ||
1da177e4 LT |
690 | /* |
691 | * Obsolete - for backwards compatibility only | |
692 | */ | |
7d12e780 | 693 | static void k_dead(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 694 | { |
0f5e560e | 695 | static const unsigned char ret_diacr[NR_DEAD] = {'`', '\'', '^', '~', '"', ',' }; |
1da177e4 | 696 | value = ret_diacr[value]; |
7d12e780 | 697 | k_deadunicode(vc, value, up_flag); |
1da177e4 LT |
698 | } |
699 | ||
7d12e780 | 700 | static void k_cons(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
701 | { |
702 | if (up_flag) | |
703 | return; | |
704 | set_console(value); | |
705 | } | |
706 | ||
7d12e780 | 707 | static void k_fn(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
708 | { |
709 | unsigned v; | |
710 | ||
711 | if (up_flag) | |
712 | return; | |
713 | v = value; | |
714 | if (v < ARRAY_SIZE(func_table)) { | |
715 | if (func_table[value]) | |
716 | puts_queue(vc, func_table[value]); | |
717 | } else | |
718 | printk(KERN_ERR "k_fn called with value=%d\n", value); | |
719 | } | |
720 | ||
7d12e780 | 721 | static void k_cur(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 722 | { |
e52b29c2 | 723 | static const char cur_chars[] = "BDCA"; |
1da177e4 LT |
724 | |
725 | if (up_flag) | |
726 | return; | |
727 | applkey(vc, cur_chars[value], vc_kbd_mode(kbd, VC_CKMODE)); | |
728 | } | |
729 | ||
7d12e780 | 730 | static void k_pad(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 731 | { |
0f5e560e AM |
732 | static const char pad_chars[] = "0123456789+-*/\015,.?()#"; |
733 | static const char app_map[] = "pqrstuvwxylSRQMnnmPQS"; | |
1da177e4 LT |
734 | |
735 | if (up_flag) | |
736 | return; /* no action, if this is a key release */ | |
737 | ||
738 | /* kludge... shift forces cursor/number keys */ | |
739 | if (vc_kbd_mode(kbd, VC_APPLIC) && !shift_down[KG_SHIFT]) { | |
740 | applkey(vc, app_map[value], 1); | |
741 | return; | |
742 | } | |
743 | ||
744 | if (!vc_kbd_led(kbd, VC_NUMLOCK)) | |
745 | switch (value) { | |
746 | case KVAL(K_PCOMMA): | |
747 | case KVAL(K_PDOT): | |
7d12e780 | 748 | k_fn(vc, KVAL(K_REMOVE), 0); |
1da177e4 LT |
749 | return; |
750 | case KVAL(K_P0): | |
7d12e780 | 751 | k_fn(vc, KVAL(K_INSERT), 0); |
1da177e4 LT |
752 | return; |
753 | case KVAL(K_P1): | |
7d12e780 | 754 | k_fn(vc, KVAL(K_SELECT), 0); |
1da177e4 LT |
755 | return; |
756 | case KVAL(K_P2): | |
7d12e780 | 757 | k_cur(vc, KVAL(K_DOWN), 0); |
1da177e4 LT |
758 | return; |
759 | case KVAL(K_P3): | |
7d12e780 | 760 | k_fn(vc, KVAL(K_PGDN), 0); |
1da177e4 LT |
761 | return; |
762 | case KVAL(K_P4): | |
7d12e780 | 763 | k_cur(vc, KVAL(K_LEFT), 0); |
1da177e4 LT |
764 | return; |
765 | case KVAL(K_P6): | |
7d12e780 | 766 | k_cur(vc, KVAL(K_RIGHT), 0); |
1da177e4 LT |
767 | return; |
768 | case KVAL(K_P7): | |
7d12e780 | 769 | k_fn(vc, KVAL(K_FIND), 0); |
1da177e4 LT |
770 | return; |
771 | case KVAL(K_P8): | |
7d12e780 | 772 | k_cur(vc, KVAL(K_UP), 0); |
1da177e4 LT |
773 | return; |
774 | case KVAL(K_P9): | |
7d12e780 | 775 | k_fn(vc, KVAL(K_PGUP), 0); |
1da177e4 LT |
776 | return; |
777 | case KVAL(K_P5): | |
778 | applkey(vc, 'G', vc_kbd_mode(kbd, VC_APPLIC)); | |
779 | return; | |
780 | } | |
781 | ||
782 | put_queue(vc, pad_chars[value]); | |
783 | if (value == KVAL(K_PENTER) && vc_kbd_mode(kbd, VC_CRLF)) | |
784 | put_queue(vc, 10); | |
785 | } | |
786 | ||
7d12e780 | 787 | static void k_shift(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
788 | { |
789 | int old_state = shift_state; | |
790 | ||
791 | if (rep) | |
792 | return; | |
793 | /* | |
794 | * Mimic typewriter: | |
795 | * a CapsShift key acts like Shift but undoes CapsLock | |
796 | */ | |
797 | if (value == KVAL(K_CAPSSHIFT)) { | |
798 | value = KVAL(K_SHIFT); | |
799 | if (!up_flag) | |
800 | clr_vc_kbd_led(kbd, VC_CAPSLOCK); | |
801 | } | |
802 | ||
803 | if (up_flag) { | |
804 | /* | |
805 | * handle the case that two shift or control | |
806 | * keys are depressed simultaneously | |
807 | */ | |
808 | if (shift_down[value]) | |
809 | shift_down[value]--; | |
810 | } else | |
811 | shift_down[value]++; | |
812 | ||
813 | if (shift_down[value]) | |
814 | shift_state |= (1 << value); | |
815 | else | |
816 | shift_state &= ~(1 << value); | |
817 | ||
818 | /* kludge */ | |
819 | if (up_flag && shift_state != old_state && npadch != -1) { | |
820 | if (kbd->kbdmode == VC_UNICODE) | |
759448f4 | 821 | to_utf8(vc, npadch); |
1da177e4 LT |
822 | else |
823 | put_queue(vc, npadch & 0xff); | |
824 | npadch = -1; | |
825 | } | |
826 | } | |
827 | ||
7d12e780 | 828 | static void k_meta(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
829 | { |
830 | if (up_flag) | |
831 | return; | |
832 | ||
833 | if (vc_kbd_mode(kbd, VC_META)) { | |
834 | put_queue(vc, '\033'); | |
835 | put_queue(vc, value); | |
836 | } else | |
837 | put_queue(vc, value | 0x80); | |
838 | } | |
839 | ||
7d12e780 | 840 | static void k_ascii(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
841 | { |
842 | int base; | |
843 | ||
844 | if (up_flag) | |
845 | return; | |
846 | ||
847 | if (value < 10) { | |
848 | /* decimal input of code, while Alt depressed */ | |
849 | base = 10; | |
850 | } else { | |
851 | /* hexadecimal input of code, while AltGr depressed */ | |
852 | value -= 10; | |
853 | base = 16; | |
854 | } | |
855 | ||
856 | if (npadch == -1) | |
857 | npadch = value; | |
858 | else | |
859 | npadch = npadch * base + value; | |
860 | } | |
861 | ||
7d12e780 | 862 | static void k_lock(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
863 | { |
864 | if (up_flag || rep) | |
865 | return; | |
866 | chg_vc_kbd_lock(kbd, value); | |
867 | } | |
868 | ||
7d12e780 | 869 | static void k_slock(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 870 | { |
7d12e780 | 871 | k_shift(vc, value, up_flag); |
1da177e4 LT |
872 | if (up_flag || rep) |
873 | return; | |
874 | chg_vc_kbd_slock(kbd, value); | |
875 | /* try to make Alt, oops, AltGr and such work */ | |
876 | if (!key_maps[kbd->lockstate ^ kbd->slockstate]) { | |
877 | kbd->slockstate = 0; | |
878 | chg_vc_kbd_slock(kbd, value); | |
879 | } | |
880 | } | |
881 | ||
b9ec4e10 | 882 | /* by default, 300ms interval for combination release */ |
77426d72 ST |
883 | static unsigned brl_timeout = 300; |
884 | MODULE_PARM_DESC(brl_timeout, "Braille keys release delay in ms (0 for commit on first key release)"); | |
885 | module_param(brl_timeout, uint, 0644); | |
886 | ||
887 | static unsigned brl_nbchords = 1; | |
888 | MODULE_PARM_DESC(brl_nbchords, "Number of chords that produce a braille pattern (0 for dead chords)"); | |
889 | module_param(brl_nbchords, uint, 0644); | |
890 | ||
7d12e780 | 891 | static void k_brlcommit(struct vc_data *vc, unsigned int pattern, char up_flag) |
77426d72 ST |
892 | { |
893 | static unsigned long chords; | |
894 | static unsigned committed; | |
895 | ||
896 | if (!brl_nbchords) | |
7d12e780 | 897 | k_deadunicode(vc, BRL_UC_ROW | pattern, up_flag); |
77426d72 ST |
898 | else { |
899 | committed |= pattern; | |
900 | chords++; | |
901 | if (chords == brl_nbchords) { | |
7d12e780 | 902 | k_unicode(vc, BRL_UC_ROW | committed, up_flag); |
77426d72 ST |
903 | chords = 0; |
904 | committed = 0; | |
905 | } | |
906 | } | |
907 | } | |
908 | ||
7d12e780 | 909 | static void k_brl(struct vc_data *vc, unsigned char value, char up_flag) |
b9ec4e10 ST |
910 | { |
911 | static unsigned pressed,committing; | |
912 | static unsigned long releasestart; | |
913 | ||
914 | if (kbd->kbdmode != VC_UNICODE) { | |
915 | if (!up_flag) | |
916 | printk("keyboard mode must be unicode for braille patterns\n"); | |
917 | return; | |
918 | } | |
919 | ||
920 | if (!value) { | |
7d12e780 | 921 | k_unicode(vc, BRL_UC_ROW, up_flag); |
b9ec4e10 ST |
922 | return; |
923 | } | |
924 | ||
925 | if (value > 8) | |
926 | return; | |
927 | ||
b9ec4e10 ST |
928 | if (up_flag) { |
929 | if (brl_timeout) { | |
930 | if (!committing || | |
931 | jiffies - releasestart > (brl_timeout * HZ) / 1000) { | |
932 | committing = pressed; | |
933 | releasestart = jiffies; | |
934 | } | |
935 | pressed &= ~(1 << (value - 1)); | |
936 | if (!pressed) { | |
937 | if (committing) { | |
7d12e780 | 938 | k_brlcommit(vc, committing, 0); |
b9ec4e10 ST |
939 | committing = 0; |
940 | } | |
941 | } | |
942 | } else { | |
943 | if (committing) { | |
7d12e780 | 944 | k_brlcommit(vc, committing, 0); |
b9ec4e10 ST |
945 | committing = 0; |
946 | } | |
947 | pressed &= ~(1 << (value - 1)); | |
948 | } | |
949 | } else { | |
950 | pressed |= 1 << (value - 1); | |
951 | if (!brl_timeout) | |
952 | committing = pressed; | |
953 | } | |
954 | } | |
955 | ||
1da177e4 LT |
956 | /* |
957 | * The leds display either (i) the status of NumLock, CapsLock, ScrollLock, | |
958 | * or (ii) whatever pattern of lights people want to show using KDSETLED, | |
959 | * or (iii) specified bits of specified words in kernel memory. | |
960 | */ | |
961 | unsigned char getledstate(void) | |
962 | { | |
963 | return ledstate; | |
964 | } | |
965 | ||
966 | void setledstate(struct kbd_struct *kbd, unsigned int led) | |
967 | { | |
968 | if (!(led & ~7)) { | |
969 | ledioctl = led; | |
970 | kbd->ledmode = LED_SHOW_IOCTL; | |
971 | } else | |
972 | kbd->ledmode = LED_SHOW_FLAGS; | |
973 | set_leds(); | |
974 | } | |
975 | ||
976 | static inline unsigned char getleds(void) | |
977 | { | |
978 | struct kbd_struct *kbd = kbd_table + fg_console; | |
979 | unsigned char leds; | |
980 | int i; | |
981 | ||
982 | if (kbd->ledmode == LED_SHOW_IOCTL) | |
983 | return ledioctl; | |
984 | ||
985 | leds = kbd->ledflagstate; | |
986 | ||
987 | if (kbd->ledmode == LED_SHOW_MEM) { | |
988 | for (i = 0; i < 3; i++) | |
989 | if (ledptrs[i].valid) { | |
990 | if (*ledptrs[i].addr & ledptrs[i].mask) | |
991 | leds |= (1 << i); | |
992 | else | |
993 | leds &= ~(1 << i); | |
994 | } | |
995 | } | |
996 | return leds; | |
997 | } | |
998 | ||
999 | /* | |
1000 | * This routine is the bottom half of the keyboard interrupt | |
1001 | * routine, and runs with all interrupts enabled. It does | |
1002 | * console changing, led setting and copy_to_cooked, which can | |
1003 | * take a reasonably long time. | |
1004 | * | |
1005 | * Aside from timing (which isn't really that important for | |
1006 | * keyboard interrupts as they happen often), using the software | |
1007 | * interrupt routines for this thing allows us to easily mask | |
1008 | * this when we don't want any of the above to happen. | |
1009 | * This allows for easy and efficient race-condition prevention | |
0e739d28 | 1010 | * for kbd_start => input_inject_event(dev, EV_LED, ...) => ... |
1da177e4 LT |
1011 | */ |
1012 | ||
1013 | static void kbd_bh(unsigned long dummy) | |
1014 | { | |
fe1e8604 | 1015 | struct list_head *node; |
1da177e4 LT |
1016 | unsigned char leds = getleds(); |
1017 | ||
1018 | if (leds != ledstate) { | |
fe1e8604 | 1019 | list_for_each(node, &kbd_handler.h_list) { |
0e739d28 DT |
1020 | struct input_handle *handle = to_handle_h(node); |
1021 | input_inject_event(handle, EV_LED, LED_SCROLLL, !!(leds & 0x01)); | |
1022 | input_inject_event(handle, EV_LED, LED_NUML, !!(leds & 0x02)); | |
1023 | input_inject_event(handle, EV_LED, LED_CAPSL, !!(leds & 0x04)); | |
1024 | input_inject_event(handle, EV_SYN, SYN_REPORT, 0); | |
1da177e4 LT |
1025 | } |
1026 | } | |
1027 | ||
1028 | ledstate = leds; | |
1029 | } | |
1030 | ||
1031 | DECLARE_TASKLET_DISABLED(keyboard_tasklet, kbd_bh, 0); | |
1032 | ||
1da177e4 | 1033 | #if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_ALPHA) ||\ |
0b57ee9e AB |
1034 | defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_SPARC) ||\ |
1035 | defined(CONFIG_PARISC) || defined(CONFIG_SUPERH) ||\ | |
1da177e4 LT |
1036 | (defined(CONFIG_ARM) && defined(CONFIG_KEYBOARD_ATKBD) && !defined(CONFIG_ARCH_RPC)) |
1037 | ||
1038 | #define HW_RAW(dev) (test_bit(EV_MSC, dev->evbit) && test_bit(MSC_RAW, dev->mscbit) &&\ | |
1039 | ((dev)->id.bustype == BUS_I8042) && ((dev)->id.vendor == 0x0001) && ((dev)->id.product == 0x0001)) | |
1040 | ||
0f5e560e | 1041 | static const unsigned short x86_keycodes[256] = |
1da177e4 LT |
1042 | { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, |
1043 | 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, | |
1044 | 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, | |
1045 | 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, | |
1046 | 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, | |
1047 | 80, 81, 82, 83, 84,118, 86, 87, 88,115,120,119,121,112,123, 92, | |
896cdc7b | 1048 | 284,285,309, 0,312, 91,327,328,329,331,333,335,336,337,338,339, |
1da177e4 LT |
1049 | 367,288,302,304,350, 89,334,326,267,126,268,269,125,347,348,349, |
1050 | 360,261,262,263,268,376,100,101,321,316,373,286,289,102,351,355, | |
72a42f24 HG |
1051 | 103,104,105,275,287,279,258,106,274,107,294,364,358,363,362,361, |
1052 | 291,108,381,281,290,272,292,305,280, 99,112,257,306,359,113,114, | |
1da177e4 LT |
1053 | 264,117,271,374,379,265,266, 93, 94, 95, 85,259,375,260, 90,116, |
1054 | 377,109,111,277,278,282,283,295,296,297,299,300,301,293,303,307, | |
1055 | 308,310,313,314,315,317,318,319,320,357,322,323,324,325,276,330, | |
1056 | 332,340,365,342,343,344,345,346,356,270,341,368,369,370,371,372 }; | |
1057 | ||
0b57ee9e | 1058 | #ifdef CONFIG_SPARC |
1da177e4 LT |
1059 | static int sparc_l1_a_state = 0; |
1060 | extern void sun_do_break(void); | |
1061 | #endif | |
1062 | ||
fe1e8604 | 1063 | static int emulate_raw(struct vc_data *vc, unsigned int keycode, |
1da177e4 LT |
1064 | unsigned char up_flag) |
1065 | { | |
896cdc7b | 1066 | int code; |
1da177e4 LT |
1067 | |
1068 | switch (keycode) { | |
1069 | case KEY_PAUSE: | |
1070 | put_queue(vc, 0xe1); | |
1071 | put_queue(vc, 0x1d | up_flag); | |
1072 | put_queue(vc, 0x45 | up_flag); | |
896cdc7b DT |
1073 | break; |
1074 | ||
b9ab58dd | 1075 | case KEY_HANGEUL: |
0ae051a1 DT |
1076 | if (!up_flag) |
1077 | put_queue(vc, 0xf2); | |
896cdc7b DT |
1078 | break; |
1079 | ||
1da177e4 | 1080 | case KEY_HANJA: |
0ae051a1 DT |
1081 | if (!up_flag) |
1082 | put_queue(vc, 0xf1); | |
896cdc7b | 1083 | break; |
1da177e4 | 1084 | |
896cdc7b DT |
1085 | case KEY_SYSRQ: |
1086 | /* | |
1087 | * Real AT keyboards (that's what we're trying | |
1088 | * to emulate here emit 0xe0 0x2a 0xe0 0x37 when | |
1089 | * pressing PrtSc/SysRq alone, but simply 0x54 | |
1090 | * when pressing Alt+PrtSc/SysRq. | |
1091 | */ | |
1092 | if (sysrq_alt) { | |
1093 | put_queue(vc, 0x54 | up_flag); | |
1094 | } else { | |
1095 | put_queue(vc, 0xe0); | |
1096 | put_queue(vc, 0x2a | up_flag); | |
1097 | put_queue(vc, 0xe0); | |
1098 | put_queue(vc, 0x37 | up_flag); | |
1099 | } | |
1100 | break; | |
1101 | ||
1102 | default: | |
1103 | if (keycode > 255) | |
1104 | return -1; | |
1da177e4 | 1105 | |
896cdc7b DT |
1106 | code = x86_keycodes[keycode]; |
1107 | if (!code) | |
1108 | return -1; | |
1da177e4 | 1109 | |
896cdc7b DT |
1110 | if (code & 0x100) |
1111 | put_queue(vc, 0xe0); | |
1112 | put_queue(vc, (code & 0x7f) | up_flag); | |
1da177e4 | 1113 | |
896cdc7b | 1114 | break; |
1da177e4 LT |
1115 | } |
1116 | ||
1117 | return 0; | |
1118 | } | |
1119 | ||
1120 | #else | |
1121 | ||
1122 | #define HW_RAW(dev) 0 | |
1123 | ||
1124 | #warning "Cannot generate rawmode keyboard for your architecture yet." | |
1125 | ||
1126 | static int emulate_raw(struct vc_data *vc, unsigned int keycode, unsigned char up_flag) | |
1127 | { | |
1128 | if (keycode > 127) | |
1129 | return -1; | |
1130 | ||
1131 | put_queue(vc, keycode | up_flag); | |
1132 | return 0; | |
1133 | } | |
1134 | #endif | |
1135 | ||
1136 | static void kbd_rawcode(unsigned char data) | |
1137 | { | |
1138 | struct vc_data *vc = vc_cons[fg_console].d; | |
1139 | kbd = kbd_table + fg_console; | |
1140 | if (kbd->kbdmode == VC_RAW) | |
1141 | put_queue(vc, data); | |
1142 | } | |
1143 | ||
7d12e780 | 1144 | static void kbd_keycode(unsigned int keycode, int down, int hw_raw) |
1da177e4 LT |
1145 | { |
1146 | struct vc_data *vc = vc_cons[fg_console].d; | |
1147 | unsigned short keysym, *key_map; | |
1148 | unsigned char type, raw_mode; | |
1149 | struct tty_struct *tty; | |
1150 | int shift_final; | |
41ab4396 | 1151 | struct keyboard_notifier_param param = { .vc = vc, .value = keycode, .down = down }; |
1da177e4 LT |
1152 | |
1153 | tty = vc->vc_tty; | |
1154 | ||
1155 | if (tty && (!tty->driver_data)) { | |
1156 | /* No driver data? Strange. Okay we fix it then. */ | |
1157 | tty->driver_data = vc; | |
1158 | } | |
1159 | ||
1160 | kbd = kbd_table + fg_console; | |
1161 | ||
1162 | if (keycode == KEY_LEFTALT || keycode == KEY_RIGHTALT) | |
d2be8ee5 | 1163 | sysrq_alt = down ? keycode : 0; |
0b57ee9e | 1164 | #ifdef CONFIG_SPARC |
1da177e4 LT |
1165 | if (keycode == KEY_STOP) |
1166 | sparc_l1_a_state = down; | |
1167 | #endif | |
1168 | ||
1169 | rep = (down == 2); | |
1170 | ||
1171 | #ifdef CONFIG_MAC_EMUMOUSEBTN | |
1172 | if (mac_hid_mouse_emulate_buttons(1, keycode, down)) | |
1173 | return; | |
1174 | #endif /* CONFIG_MAC_EMUMOUSEBTN */ | |
1175 | ||
1176 | if ((raw_mode = (kbd->kbdmode == VC_RAW)) && !hw_raw) | |
1177 | if (emulate_raw(vc, keycode, !down << 7)) | |
9e35d206 | 1178 | if (keycode < BTN_MISC && printk_ratelimit()) |
1da177e4 LT |
1179 | printk(KERN_WARNING "keyboard.c: can't emulate rawmode for keycode %d\n", keycode); |
1180 | ||
1181 | #ifdef CONFIG_MAGIC_SYSRQ /* Handle the SysRq Hack */ | |
1182 | if (keycode == KEY_SYSRQ && (sysrq_down || (down == 1 && sysrq_alt))) { | |
d2be8ee5 FR |
1183 | if (!sysrq_down) { |
1184 | sysrq_down = down; | |
1185 | sysrq_alt_use = sysrq_alt; | |
1186 | } | |
1da177e4 LT |
1187 | return; |
1188 | } | |
d2be8ee5 FR |
1189 | if (sysrq_down && !down && keycode == sysrq_alt_use) |
1190 | sysrq_down = 0; | |
1da177e4 | 1191 | if (sysrq_down && down && !rep) { |
7d12e780 | 1192 | handle_sysrq(kbd_sysrq_xlate[keycode], tty); |
1da177e4 LT |
1193 | return; |
1194 | } | |
1195 | #endif | |
0b57ee9e | 1196 | #ifdef CONFIG_SPARC |
1da177e4 LT |
1197 | if (keycode == KEY_A && sparc_l1_a_state) { |
1198 | sparc_l1_a_state = 0; | |
1199 | sun_do_break(); | |
1200 | } | |
1201 | #endif | |
1202 | ||
1203 | if (kbd->kbdmode == VC_MEDIUMRAW) { | |
1204 | /* | |
1205 | * This is extended medium raw mode, with keys above 127 | |
1206 | * encoded as 0, high 7 bits, low 7 bits, with the 0 bearing | |
1207 | * the 'up' flag if needed. 0 is reserved, so this shouldn't | |
1208 | * interfere with anything else. The two bytes after 0 will | |
1209 | * always have the up flag set not to interfere with older | |
1210 | * applications. This allows for 16384 different keycodes, | |
1211 | * which should be enough. | |
1212 | */ | |
1213 | if (keycode < 128) { | |
1214 | put_queue(vc, keycode | (!down << 7)); | |
1215 | } else { | |
1216 | put_queue(vc, !down << 7); | |
1217 | put_queue(vc, (keycode >> 7) | 0x80); | |
1218 | put_queue(vc, keycode | 0x80); | |
1219 | } | |
1220 | raw_mode = 1; | |
1221 | } | |
1222 | ||
1223 | if (down) | |
1224 | set_bit(keycode, key_down); | |
1225 | else | |
1226 | clear_bit(keycode, key_down); | |
1227 | ||
fe1e8604 DT |
1228 | if (rep && |
1229 | (!vc_kbd_mode(kbd, VC_REPEAT) || | |
1230 | (tty && !L_ECHO(tty) && tty->driver->chars_in_buffer(tty)))) { | |
1da177e4 LT |
1231 | /* |
1232 | * Don't repeat a key if the input buffers are not empty and the | |
fe1e8604 | 1233 | * characters get aren't echoed locally. This makes key repeat |
1da177e4 LT |
1234 | * usable with slow applications and under heavy loads. |
1235 | */ | |
1236 | return; | |
1237 | } | |
1238 | ||
41ab4396 | 1239 | param.shift = shift_final = (shift_state | kbd->slockstate) ^ kbd->lockstate; |
1da177e4 LT |
1240 | key_map = key_maps[shift_final]; |
1241 | ||
41ab4396 ST |
1242 | if (atomic_notifier_call_chain(&keyboard_notifier_list, KBD_KEYCODE, ¶m) == NOTIFY_STOP || !key_map) { |
1243 | atomic_notifier_call_chain(&keyboard_notifier_list, KBD_UNBOUND_KEYCODE, ¶m); | |
1da177e4 LT |
1244 | compute_shiftstate(); |
1245 | kbd->slockstate = 0; | |
1246 | return; | |
1247 | } | |
1248 | ||
1249 | if (keycode > NR_KEYS) | |
b9ec4e10 ST |
1250 | if (keycode >= KEY_BRL_DOT1 && keycode <= KEY_BRL_DOT8) |
1251 | keysym = K(KT_BRL, keycode - KEY_BRL_DOT1 + 1); | |
1252 | else | |
1253 | return; | |
1254 | else | |
1255 | keysym = key_map[keycode]; | |
1da177e4 | 1256 | |
1da177e4 LT |
1257 | type = KTYP(keysym); |
1258 | ||
1259 | if (type < 0xf0) { | |
41ab4396 ST |
1260 | param.value = keysym; |
1261 | if (atomic_notifier_call_chain(&keyboard_notifier_list, KBD_UNICODE, ¶m) == NOTIFY_STOP) | |
1262 | return; | |
fe1e8604 DT |
1263 | if (down && !raw_mode) |
1264 | to_utf8(vc, keysym); | |
1da177e4 LT |
1265 | return; |
1266 | } | |
1267 | ||
1268 | type -= 0xf0; | |
1269 | ||
1da177e4 LT |
1270 | if (type == KT_LETTER) { |
1271 | type = KT_LATIN; | |
1272 | if (vc_kbd_led(kbd, VC_CAPSLOCK)) { | |
1273 | key_map = key_maps[shift_final ^ (1 << KG_SHIFT)]; | |
1274 | if (key_map) | |
1275 | keysym = key_map[keycode]; | |
1276 | } | |
1277 | } | |
41ab4396 ST |
1278 | param.value = keysym; |
1279 | ||
1280 | if (atomic_notifier_call_chain(&keyboard_notifier_list, KBD_KEYSYM, ¶m) == NOTIFY_STOP) | |
1281 | return; | |
1282 | ||
1283 | if (raw_mode && type != KT_SPEC && type != KT_SHIFT) | |
1284 | return; | |
1da177e4 | 1285 | |
7d12e780 | 1286 | (*k_handler[type])(vc, keysym & 0xff, !down); |
1da177e4 | 1287 | |
41ab4396 ST |
1288 | atomic_notifier_call_chain(&keyboard_notifier_list, KBD_POST_KEYSYM, ¶m); |
1289 | ||
1da177e4 LT |
1290 | if (type != KT_SLOCK) |
1291 | kbd->slockstate = 0; | |
1292 | } | |
1293 | ||
fe1e8604 | 1294 | static void kbd_event(struct input_handle *handle, unsigned int event_type, |
1da177e4 LT |
1295 | unsigned int event_code, int value) |
1296 | { | |
1297 | if (event_type == EV_MSC && event_code == MSC_RAW && HW_RAW(handle->dev)) | |
1298 | kbd_rawcode(value); | |
1299 | if (event_type == EV_KEY) | |
7d12e780 | 1300 | kbd_keycode(event_code, value, HW_RAW(handle->dev)); |
1da177e4 LT |
1301 | tasklet_schedule(&keyboard_tasklet); |
1302 | do_poke_blanked_console = 1; | |
1303 | schedule_console_callback(); | |
1304 | } | |
1305 | ||
1da177e4 LT |
1306 | /* |
1307 | * When a keyboard (or other input device) is found, the kbd_connect | |
1308 | * function is called. The function then looks at the device, and if it | |
1309 | * likes it, it can open it and get events from it. In this (kbd_connect) | |
1310 | * function, we should decide which VT to bind that keyboard to initially. | |
1311 | */ | |
5b2a0826 DT |
1312 | static int kbd_connect(struct input_handler *handler, struct input_dev *dev, |
1313 | const struct input_device_id *id) | |
1da177e4 LT |
1314 | { |
1315 | struct input_handle *handle; | |
5b2a0826 | 1316 | int error; |
1da177e4 LT |
1317 | int i; |
1318 | ||
1319 | for (i = KEY_RESERVED; i < BTN_MISC; i++) | |
fe1e8604 DT |
1320 | if (test_bit(i, dev->keybit)) |
1321 | break; | |
1da177e4 | 1322 | |
fe1e8604 | 1323 | if (i == BTN_MISC && !test_bit(EV_SND, dev->evbit)) |
5b2a0826 | 1324 | return -ENODEV; |
1da177e4 | 1325 | |
22479e1c DT |
1326 | handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL); |
1327 | if (!handle) | |
5b2a0826 | 1328 | return -ENOMEM; |
1da177e4 LT |
1329 | |
1330 | handle->dev = dev; | |
1331 | handle->handler = handler; | |
fe1e8604 | 1332 | handle->name = "kbd"; |
1da177e4 | 1333 | |
5b2a0826 DT |
1334 | error = input_register_handle(handle); |
1335 | if (error) | |
1336 | goto err_free_handle; | |
1da177e4 | 1337 | |
5b2a0826 DT |
1338 | error = input_open_device(handle); |
1339 | if (error) | |
1340 | goto err_unregister_handle; | |
1341 | ||
1342 | return 0; | |
1343 | ||
1344 | err_unregister_handle: | |
1345 | input_unregister_handle(handle); | |
1346 | err_free_handle: | |
1347 | kfree(handle); | |
1348 | return error; | |
1da177e4 LT |
1349 | } |
1350 | ||
1351 | static void kbd_disconnect(struct input_handle *handle) | |
1352 | { | |
1353 | input_close_device(handle); | |
5b2a0826 | 1354 | input_unregister_handle(handle); |
1da177e4 LT |
1355 | kfree(handle); |
1356 | } | |
1357 | ||
c7e8dc6e DT |
1358 | /* |
1359 | * Start keyboard handler on the new keyboard by refreshing LED state to | |
1360 | * match the rest of the system. | |
1361 | */ | |
1362 | static void kbd_start(struct input_handle *handle) | |
1363 | { | |
1364 | unsigned char leds = ledstate; | |
1365 | ||
1366 | tasklet_disable(&keyboard_tasklet); | |
1367 | if (leds != 0xff) { | |
0e739d28 DT |
1368 | input_inject_event(handle, EV_LED, LED_SCROLLL, !!(leds & 0x01)); |
1369 | input_inject_event(handle, EV_LED, LED_NUML, !!(leds & 0x02)); | |
1370 | input_inject_event(handle, EV_LED, LED_CAPSL, !!(leds & 0x04)); | |
1371 | input_inject_event(handle, EV_SYN, SYN_REPORT, 0); | |
c7e8dc6e DT |
1372 | } |
1373 | tasklet_enable(&keyboard_tasklet); | |
1374 | } | |
1375 | ||
66e66118 | 1376 | static const struct input_device_id kbd_ids[] = { |
1da177e4 LT |
1377 | { |
1378 | .flags = INPUT_DEVICE_ID_MATCH_EVBIT, | |
7b19ada2 | 1379 | .evbit = { BIT_MASK(EV_KEY) }, |
1da177e4 | 1380 | }, |
fe1e8604 | 1381 | |
1da177e4 LT |
1382 | { |
1383 | .flags = INPUT_DEVICE_ID_MATCH_EVBIT, | |
7b19ada2 | 1384 | .evbit = { BIT_MASK(EV_SND) }, |
fe1e8604 | 1385 | }, |
1da177e4 LT |
1386 | |
1387 | { }, /* Terminating entry */ | |
1388 | }; | |
1389 | ||
1390 | MODULE_DEVICE_TABLE(input, kbd_ids); | |
1391 | ||
1392 | static struct input_handler kbd_handler = { | |
1393 | .event = kbd_event, | |
1394 | .connect = kbd_connect, | |
1395 | .disconnect = kbd_disconnect, | |
c7e8dc6e | 1396 | .start = kbd_start, |
1da177e4 LT |
1397 | .name = "kbd", |
1398 | .id_table = kbd_ids, | |
1399 | }; | |
1400 | ||
1401 | int __init kbd_init(void) | |
1402 | { | |
1403 | int i; | |
4263cf0f | 1404 | int error; |
1da177e4 | 1405 | |
2b192908 DT |
1406 | for (i = 0; i < MAX_NR_CONSOLES; i++) { |
1407 | kbd_table[i].ledflagstate = KBD_DEFLEDS; | |
1408 | kbd_table[i].default_ledflagstate = KBD_DEFLEDS; | |
1409 | kbd_table[i].ledmode = LED_SHOW_FLAGS; | |
1410 | kbd_table[i].lockstate = KBD_DEFLOCK; | |
1411 | kbd_table[i].slockstate = 0; | |
1412 | kbd_table[i].modeflags = KBD_DEFMODE; | |
2e8ecb9d | 1413 | kbd_table[i].kbdmode = default_utf8 ? VC_UNICODE : VC_XLATE; |
2b192908 | 1414 | } |
1da177e4 | 1415 | |
4263cf0f DT |
1416 | error = input_register_handler(&kbd_handler); |
1417 | if (error) | |
1418 | return error; | |
1da177e4 LT |
1419 | |
1420 | tasklet_enable(&keyboard_tasklet); | |
1421 | tasklet_schedule(&keyboard_tasklet); | |
1422 | ||
1423 | return 0; | |
1424 | } |