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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> |
b39b0440 | 45 | #include <linux/jiffies.h> |
1da177e4 | 46 | |
1da177e4 LT |
47 | extern void ctrl_alt_del(void); |
48 | ||
49 | /* | |
50 | * Exported functions/variables | |
51 | */ | |
52 | ||
53 | #define KBD_DEFMODE ((1 << VC_REPEAT) | (1 << VC_META)) | |
54 | ||
55 | /* | |
56 | * Some laptops take the 789uiojklm,. keys as number pad when NumLock is on. | |
57 | * This seems a good reason to start with NumLock off. On HIL keyboards | |
fe1e8604 | 58 | * of PARISC machines however there is no NumLock key and everyone expects the keypad |
1da177e4 LT |
59 | * to be used for numbers. |
60 | */ | |
61 | ||
62 | #if defined(CONFIG_PARISC) && (defined(CONFIG_KEYBOARD_HIL) || defined(CONFIG_KEYBOARD_HIL_OLD)) | |
63 | #define KBD_DEFLEDS (1 << VC_NUMLOCK) | |
64 | #else | |
65 | #define KBD_DEFLEDS 0 | |
66 | #endif | |
67 | ||
68 | #define KBD_DEFLOCK 0 | |
69 | ||
70 | void compute_shiftstate(void); | |
71 | ||
72 | /* | |
73 | * Handler Tables. | |
74 | */ | |
75 | ||
76 | #define K_HANDLERS\ | |
77 | k_self, k_fn, k_spec, k_pad,\ | |
78 | k_dead, k_cons, k_cur, k_shift,\ | |
79 | k_meta, k_ascii, k_lock, k_lowercase,\ | |
b9ec4e10 | 80 | k_slock, k_dead2, k_brl, k_ignore |
1da177e4 | 81 | |
fe1e8604 | 82 | typedef void (k_handler_fn)(struct vc_data *vc, unsigned char value, |
7d12e780 | 83 | char up_flag); |
1da177e4 | 84 | static k_handler_fn K_HANDLERS; |
41ab4396 ST |
85 | k_handler_fn *k_handler[16] = { K_HANDLERS }; |
86 | EXPORT_SYMBOL_GPL(k_handler); | |
1da177e4 LT |
87 | |
88 | #define FN_HANDLERS\ | |
fe1e8604 DT |
89 | fn_null, fn_enter, fn_show_ptregs, fn_show_mem,\ |
90 | fn_show_state, fn_send_intr, fn_lastcons, fn_caps_toggle,\ | |
91 | fn_num, fn_hold, fn_scroll_forw, fn_scroll_back,\ | |
92 | fn_boot_it, fn_caps_on, fn_compose, fn_SAK,\ | |
93 | fn_dec_console, fn_inc_console, fn_spawn_con, fn_bare_num | |
1da177e4 | 94 | |
7d12e780 | 95 | typedef void (fn_handler_fn)(struct vc_data *vc); |
1da177e4 LT |
96 | static fn_handler_fn FN_HANDLERS; |
97 | static fn_handler_fn *fn_handler[] = { FN_HANDLERS }; | |
98 | ||
99 | /* | |
100 | * Variables exported for vt_ioctl.c | |
101 | */ | |
102 | ||
103 | /* maximum values each key_handler can handle */ | |
104 | const int max_vals[] = { | |
105 | 255, ARRAY_SIZE(func_table) - 1, ARRAY_SIZE(fn_handler) - 1, NR_PAD - 1, | |
106 | NR_DEAD - 1, 255, 3, NR_SHIFT - 1, 255, NR_ASCII - 1, NR_LOCK - 1, | |
b9ec4e10 | 107 | 255, NR_LOCK - 1, 255, NR_BRL - 1 |
1da177e4 LT |
108 | }; |
109 | ||
110 | const int NR_TYPES = ARRAY_SIZE(max_vals); | |
111 | ||
112 | struct kbd_struct kbd_table[MAX_NR_CONSOLES]; | |
f7511d5f | 113 | EXPORT_SYMBOL_GPL(kbd_table); |
1da177e4 | 114 | static struct kbd_struct *kbd = kbd_table; |
1da177e4 | 115 | |
81af8d67 | 116 | struct vt_spawn_console vt_spawn_con = { |
ccc94256 | 117 | .lock = __SPIN_LOCK_UNLOCKED(vt_spawn_con.lock), |
81af8d67 EB |
118 | .pid = NULL, |
119 | .sig = 0, | |
120 | }; | |
1da177e4 LT |
121 | |
122 | /* | |
123 | * Variables exported for vt.c | |
124 | */ | |
125 | ||
126 | int shift_state = 0; | |
127 | ||
128 | /* | |
129 | * Internal Data. | |
130 | */ | |
131 | ||
132 | static struct input_handler kbd_handler; | |
21cea58e | 133 | static DEFINE_SPINLOCK(kbd_event_lock); |
7b19ada2 | 134 | static unsigned long key_down[BITS_TO_LONGS(KEY_CNT)]; /* keyboard key bitmap */ |
1da177e4 LT |
135 | static unsigned char shift_down[NR_SHIFT]; /* shift state counters.. */ |
136 | static int dead_key_next; | |
137 | static int npadch = -1; /* -1 or number assembled on pad */ | |
b9ec4e10 | 138 | static unsigned int diacr; |
1da177e4 LT |
139 | static char rep; /* flag telling character repeat */ |
140 | ||
141 | static unsigned char ledstate = 0xff; /* undefined */ | |
142 | static unsigned char ledioctl; | |
143 | ||
144 | static struct ledptr { | |
145 | unsigned int *addr; | |
146 | unsigned int mask; | |
147 | unsigned char valid:1; | |
148 | } ledptrs[3]; | |
149 | ||
150 | /* Simple translation table for the SysRq keys */ | |
151 | ||
152 | #ifdef CONFIG_MAGIC_SYSRQ | |
153 | unsigned char kbd_sysrq_xlate[KEY_MAX + 1] = | |
154 | "\000\0331234567890-=\177\t" /* 0x00 - 0x0f */ | |
155 | "qwertyuiop[]\r\000as" /* 0x10 - 0x1f */ | |
156 | "dfghjkl;'`\000\\zxcv" /* 0x20 - 0x2f */ | |
157 | "bnm,./\000*\000 \000\201\202\203\204\205" /* 0x30 - 0x3f */ | |
158 | "\206\207\210\211\212\000\000789-456+1" /* 0x40 - 0x4f */ | |
159 | "230\177\000\000\213\214\000\000\000\000\000\000\000\000\000\000" /* 0x50 - 0x5f */ | |
160 | "\r\000/"; /* 0x60 - 0x6f */ | |
161 | static int sysrq_down; | |
d2be8ee5 | 162 | static int sysrq_alt_use; |
1da177e4 LT |
163 | #endif |
164 | static int sysrq_alt; | |
165 | ||
41ab4396 ST |
166 | /* |
167 | * Notifier list for console keyboard events | |
168 | */ | |
169 | static ATOMIC_NOTIFIER_HEAD(keyboard_notifier_list); | |
170 | ||
171 | int register_keyboard_notifier(struct notifier_block *nb) | |
172 | { | |
173 | return atomic_notifier_chain_register(&keyboard_notifier_list, nb); | |
174 | } | |
175 | EXPORT_SYMBOL_GPL(register_keyboard_notifier); | |
176 | ||
177 | int unregister_keyboard_notifier(struct notifier_block *nb) | |
178 | { | |
179 | return atomic_notifier_chain_unregister(&keyboard_notifier_list, nb); | |
180 | } | |
181 | EXPORT_SYMBOL_GPL(unregister_keyboard_notifier); | |
182 | ||
1da177e4 | 183 | /* |
c8e4c772 MR |
184 | * Translation of scancodes to keycodes. We set them on only the first |
185 | * keyboard in the list that accepts the scancode and keycode. | |
186 | * Explanation for not choosing the first attached keyboard anymore: | |
187 | * USB keyboards for example have two event devices: one for all "normal" | |
188 | * keys and one for extra function keys (like "volume up", "make coffee", | |
189 | * etc.). So this means that scancodes for the extra function keys won't | |
190 | * be valid for the first event device, but will be for the second. | |
1da177e4 | 191 | */ |
66d2a595 DT |
192 | |
193 | struct getset_keycode_data { | |
194 | unsigned int scancode; | |
195 | unsigned int keycode; | |
196 | int error; | |
197 | }; | |
198 | ||
199 | static int getkeycode_helper(struct input_handle *handle, void *data) | |
200 | { | |
201 | struct getset_keycode_data *d = data; | |
202 | ||
203 | d->error = input_get_keycode(handle->dev, d->scancode, &d->keycode); | |
204 | ||
205 | return d->error == 0; /* stop as soon as we successfully get one */ | |
206 | } | |
207 | ||
1da177e4 LT |
208 | int getkeycode(unsigned int scancode) |
209 | { | |
66d2a595 | 210 | struct getset_keycode_data d = { scancode, 0, -ENODEV }; |
c8e4c772 | 211 | |
66d2a595 | 212 | input_handler_for_each_handle(&kbd_handler, &d, getkeycode_helper); |
1da177e4 | 213 | |
66d2a595 DT |
214 | return d.error ?: d.keycode; |
215 | } | |
216 | ||
217 | static int setkeycode_helper(struct input_handle *handle, void *data) | |
218 | { | |
219 | struct getset_keycode_data *d = data; | |
220 | ||
221 | d->error = input_set_keycode(handle->dev, d->scancode, d->keycode); | |
222 | ||
223 | return d->error == 0; /* stop as soon as we successfully set one */ | |
1da177e4 LT |
224 | } |
225 | ||
226 | int setkeycode(unsigned int scancode, unsigned int keycode) | |
227 | { | |
66d2a595 | 228 | struct getset_keycode_data d = { scancode, keycode, -ENODEV }; |
c8e4c772 | 229 | |
66d2a595 | 230 | input_handler_for_each_handle(&kbd_handler, &d, setkeycode_helper); |
1da177e4 | 231 | |
66d2a595 | 232 | return d.error; |
1da177e4 LT |
233 | } |
234 | ||
235 | /* | |
fe1e8604 | 236 | * Making beeps and bells. |
1da177e4 | 237 | */ |
66d2a595 DT |
238 | |
239 | static int kd_sound_helper(struct input_handle *handle, void *data) | |
1da177e4 | 240 | { |
66d2a595 DT |
241 | unsigned int *hz = data; |
242 | struct input_dev *dev = handle->dev; | |
1da177e4 | 243 | |
66d2a595 DT |
244 | if (test_bit(EV_SND, dev->evbit)) { |
245 | if (test_bit(SND_TONE, dev->sndbit)) | |
246 | input_inject_event(handle, EV_SND, SND_TONE, *hz); | |
247 | if (test_bit(SND_BELL, handle->dev->sndbit)) | |
248 | input_inject_event(handle, EV_SND, SND_BELL, *hz ? 1 : 0); | |
1da177e4 | 249 | } |
66d2a595 DT |
250 | |
251 | return 0; | |
252 | } | |
253 | ||
254 | static void kd_nosound(unsigned long ignored) | |
255 | { | |
256 | static unsigned int zero; | |
257 | ||
258 | input_handler_for_each_handle(&kbd_handler, &zero, kd_sound_helper); | |
1da177e4 LT |
259 | } |
260 | ||
8d06afab | 261 | static DEFINE_TIMER(kd_mksound_timer, kd_nosound, 0, 0); |
1da177e4 LT |
262 | |
263 | void kd_mksound(unsigned int hz, unsigned int ticks) | |
264 | { | |
66d2a595 | 265 | del_timer_sync(&kd_mksound_timer); |
1da177e4 | 266 | |
66d2a595 | 267 | input_handler_for_each_handle(&kbd_handler, &hz, kd_sound_helper); |
1da177e4 | 268 | |
66d2a595 DT |
269 | if (hz && ticks) |
270 | mod_timer(&kd_mksound_timer, jiffies + ticks); | |
1da177e4 | 271 | } |
f7511d5f | 272 | EXPORT_SYMBOL(kd_mksound); |
1da177e4 LT |
273 | |
274 | /* | |
275 | * Setting the keyboard rate. | |
276 | */ | |
277 | ||
66d2a595 | 278 | static int kbd_rate_helper(struct input_handle *handle, void *data) |
1da177e4 | 279 | { |
66d2a595 DT |
280 | struct input_dev *dev = handle->dev; |
281 | struct kbd_repeat *rep = data; | |
282 | ||
283 | if (test_bit(EV_REP, dev->evbit)) { | |
284 | ||
285 | if (rep[0].delay > 0) | |
286 | input_inject_event(handle, | |
287 | EV_REP, REP_DELAY, rep[0].delay); | |
288 | if (rep[0].period > 0) | |
289 | input_inject_event(handle, | |
290 | EV_REP, REP_PERIOD, rep[0].period); | |
291 | ||
292 | rep[1].delay = dev->rep[REP_DELAY]; | |
293 | rep[1].period = dev->rep[REP_PERIOD]; | |
1da177e4 | 294 | } |
66d2a595 DT |
295 | |
296 | return 0; | |
297 | } | |
298 | ||
299 | int kbd_rate(struct kbd_repeat *rep) | |
300 | { | |
301 | struct kbd_repeat data[2] = { *rep }; | |
302 | ||
303 | input_handler_for_each_handle(&kbd_handler, data, kbd_rate_helper); | |
304 | *rep = data[1]; /* Copy currently used settings */ | |
305 | ||
1da177e4 LT |
306 | return 0; |
307 | } | |
308 | ||
309 | /* | |
310 | * Helper Functions. | |
311 | */ | |
312 | static void put_queue(struct vc_data *vc, int ch) | |
313 | { | |
314 | struct tty_struct *tty = vc->vc_tty; | |
315 | ||
316 | if (tty) { | |
317 | tty_insert_flip_char(tty, ch, 0); | |
318 | con_schedule_flip(tty); | |
319 | } | |
320 | } | |
321 | ||
322 | static void puts_queue(struct vc_data *vc, char *cp) | |
323 | { | |
324 | struct tty_struct *tty = vc->vc_tty; | |
325 | ||
326 | if (!tty) | |
327 | return; | |
328 | ||
329 | while (*cp) { | |
330 | tty_insert_flip_char(tty, *cp, 0); | |
331 | cp++; | |
332 | } | |
333 | con_schedule_flip(tty); | |
334 | } | |
335 | ||
336 | static void applkey(struct vc_data *vc, int key, char mode) | |
337 | { | |
338 | static char buf[] = { 0x1b, 'O', 0x00, 0x00 }; | |
339 | ||
340 | buf[1] = (mode ? 'O' : '['); | |
341 | buf[2] = key; | |
342 | puts_queue(vc, buf); | |
343 | } | |
344 | ||
345 | /* | |
346 | * Many other routines do put_queue, but I think either | |
347 | * they produce ASCII, or they produce some user-assigned | |
348 | * string, and in both cases we might assume that it is | |
759448f4 | 349 | * in utf-8 already. |
1da177e4 | 350 | */ |
759448f4 | 351 | static void to_utf8(struct vc_data *vc, uint c) |
1da177e4 LT |
352 | { |
353 | if (c < 0x80) | |
354 | /* 0******* */ | |
355 | put_queue(vc, c); | |
fe1e8604 | 356 | else if (c < 0x800) { |
1da177e4 | 357 | /* 110***** 10****** */ |
fe1e8604 | 358 | put_queue(vc, 0xc0 | (c >> 6)); |
1da177e4 | 359 | put_queue(vc, 0x80 | (c & 0x3f)); |
759448f4 JE |
360 | } else if (c < 0x10000) { |
361 | if (c >= 0xD800 && c < 0xE000) | |
362 | return; | |
363 | if (c == 0xFFFF) | |
364 | return; | |
1da177e4 LT |
365 | /* 1110**** 10****** 10****** */ |
366 | put_queue(vc, 0xe0 | (c >> 12)); | |
367 | put_queue(vc, 0x80 | ((c >> 6) & 0x3f)); | |
368 | put_queue(vc, 0x80 | (c & 0x3f)); | |
759448f4 JE |
369 | } else if (c < 0x110000) { |
370 | /* 11110*** 10****** 10****** 10****** */ | |
371 | put_queue(vc, 0xf0 | (c >> 18)); | |
372 | put_queue(vc, 0x80 | ((c >> 12) & 0x3f)); | |
373 | put_queue(vc, 0x80 | ((c >> 6) & 0x3f)); | |
374 | put_queue(vc, 0x80 | (c & 0x3f)); | |
fe1e8604 | 375 | } |
1da177e4 LT |
376 | } |
377 | ||
fe1e8604 | 378 | /* |
1da177e4 LT |
379 | * Called after returning from RAW mode or when changing consoles - recompute |
380 | * shift_down[] and shift_state from key_down[] maybe called when keymap is | |
381 | * undefined, so that shiftkey release is seen | |
382 | */ | |
383 | void compute_shiftstate(void) | |
384 | { | |
385 | unsigned int i, j, k, sym, val; | |
386 | ||
387 | shift_state = 0; | |
388 | memset(shift_down, 0, sizeof(shift_down)); | |
fe1e8604 | 389 | |
1da177e4 LT |
390 | for (i = 0; i < ARRAY_SIZE(key_down); i++) { |
391 | ||
392 | if (!key_down[i]) | |
393 | continue; | |
394 | ||
395 | k = i * BITS_PER_LONG; | |
396 | ||
397 | for (j = 0; j < BITS_PER_LONG; j++, k++) { | |
398 | ||
399 | if (!test_bit(k, key_down)) | |
400 | continue; | |
401 | ||
402 | sym = U(key_maps[0][k]); | |
403 | if (KTYP(sym) != KT_SHIFT && KTYP(sym) != KT_SLOCK) | |
404 | continue; | |
405 | ||
406 | val = KVAL(sym); | |
407 | if (val == KVAL(K_CAPSSHIFT)) | |
408 | val = KVAL(K_SHIFT); | |
409 | ||
410 | shift_down[val]++; | |
411 | shift_state |= (1 << val); | |
412 | } | |
413 | } | |
414 | } | |
415 | ||
416 | /* | |
417 | * We have a combining character DIACR here, followed by the character CH. | |
418 | * If the combination occurs in the table, return the corresponding value. | |
419 | * Otherwise, if CH is a space or equals DIACR, return DIACR. | |
420 | * Otherwise, conclude that DIACR was not combining after all, | |
421 | * queue it and return CH. | |
422 | */ | |
b9ec4e10 | 423 | static unsigned int handle_diacr(struct vc_data *vc, unsigned int ch) |
1da177e4 | 424 | { |
b9ec4e10 | 425 | unsigned int d = diacr; |
1da177e4 LT |
426 | unsigned int i; |
427 | ||
428 | diacr = 0; | |
429 | ||
b9ec4e10 ST |
430 | if ((d & ~0xff) == BRL_UC_ROW) { |
431 | if ((ch & ~0xff) == BRL_UC_ROW) | |
432 | return d | ch; | |
433 | } else { | |
434 | for (i = 0; i < accent_table_size; i++) | |
435 | if (accent_table[i].diacr == d && accent_table[i].base == ch) | |
436 | return accent_table[i].result; | |
1da177e4 LT |
437 | } |
438 | ||
b9ec4e10 | 439 | if (ch == ' ' || ch == (BRL_UC_ROW|0) || ch == d) |
1da177e4 LT |
440 | return d; |
441 | ||
b9ec4e10 | 442 | if (kbd->kbdmode == VC_UNICODE) |
04c71976 ST |
443 | to_utf8(vc, d); |
444 | else { | |
445 | int c = conv_uni_to_8bit(d); | |
446 | if (c != -1) | |
447 | put_queue(vc, c); | |
448 | } | |
b9ec4e10 | 449 | |
1da177e4 LT |
450 | return ch; |
451 | } | |
452 | ||
453 | /* | |
454 | * Special function handlers | |
455 | */ | |
7d12e780 | 456 | static void fn_enter(struct vc_data *vc) |
1da177e4 LT |
457 | { |
458 | if (diacr) { | |
b9ec4e10 | 459 | if (kbd->kbdmode == VC_UNICODE) |
04c71976 ST |
460 | to_utf8(vc, diacr); |
461 | else { | |
462 | int c = conv_uni_to_8bit(diacr); | |
463 | if (c != -1) | |
464 | put_queue(vc, c); | |
465 | } | |
1da177e4 LT |
466 | diacr = 0; |
467 | } | |
468 | put_queue(vc, 13); | |
469 | if (vc_kbd_mode(kbd, VC_CRLF)) | |
470 | put_queue(vc, 10); | |
471 | } | |
472 | ||
7d12e780 | 473 | static void fn_caps_toggle(struct vc_data *vc) |
1da177e4 LT |
474 | { |
475 | if (rep) | |
476 | return; | |
477 | chg_vc_kbd_led(kbd, VC_CAPSLOCK); | |
478 | } | |
479 | ||
7d12e780 | 480 | static void fn_caps_on(struct vc_data *vc) |
1da177e4 LT |
481 | { |
482 | if (rep) | |
483 | return; | |
484 | set_vc_kbd_led(kbd, VC_CAPSLOCK); | |
485 | } | |
486 | ||
7d12e780 | 487 | static void fn_show_ptregs(struct vc_data *vc) |
1da177e4 | 488 | { |
7d12e780 | 489 | struct pt_regs *regs = get_irq_regs(); |
1da177e4 LT |
490 | if (regs) |
491 | show_regs(regs); | |
492 | } | |
493 | ||
7d12e780 | 494 | static void fn_hold(struct vc_data *vc) |
1da177e4 LT |
495 | { |
496 | struct tty_struct *tty = vc->vc_tty; | |
497 | ||
498 | if (rep || !tty) | |
499 | return; | |
500 | ||
501 | /* | |
502 | * Note: SCROLLOCK will be set (cleared) by stop_tty (start_tty); | |
503 | * these routines are also activated by ^S/^Q. | |
504 | * (And SCROLLOCK can also be set by the ioctl KDSKBLED.) | |
505 | */ | |
506 | if (tty->stopped) | |
507 | start_tty(tty); | |
508 | else | |
509 | stop_tty(tty); | |
510 | } | |
511 | ||
7d12e780 | 512 | static void fn_num(struct vc_data *vc) |
1da177e4 LT |
513 | { |
514 | if (vc_kbd_mode(kbd,VC_APPLIC)) | |
515 | applkey(vc, 'P', 1); | |
516 | else | |
7d12e780 | 517 | fn_bare_num(vc); |
1da177e4 LT |
518 | } |
519 | ||
520 | /* | |
521 | * Bind this to Shift-NumLock if you work in application keypad mode | |
522 | * but want to be able to change the NumLock flag. | |
523 | * Bind this to NumLock if you prefer that the NumLock key always | |
524 | * changes the NumLock flag. | |
525 | */ | |
7d12e780 | 526 | static void fn_bare_num(struct vc_data *vc) |
1da177e4 LT |
527 | { |
528 | if (!rep) | |
529 | chg_vc_kbd_led(kbd, VC_NUMLOCK); | |
530 | } | |
531 | ||
7d12e780 | 532 | static void fn_lastcons(struct vc_data *vc) |
1da177e4 LT |
533 | { |
534 | /* switch to the last used console, ChN */ | |
535 | set_console(last_console); | |
536 | } | |
537 | ||
7d12e780 | 538 | static void fn_dec_console(struct vc_data *vc) |
1da177e4 LT |
539 | { |
540 | int i, cur = fg_console; | |
541 | ||
542 | /* Currently switching? Queue this next switch relative to that. */ | |
543 | if (want_console != -1) | |
544 | cur = want_console; | |
545 | ||
fe1e8604 | 546 | for (i = cur - 1; i != cur; i--) { |
1da177e4 | 547 | if (i == -1) |
fe1e8604 | 548 | i = MAX_NR_CONSOLES - 1; |
1da177e4 LT |
549 | if (vc_cons_allocated(i)) |
550 | break; | |
551 | } | |
552 | set_console(i); | |
553 | } | |
554 | ||
7d12e780 | 555 | static void fn_inc_console(struct vc_data *vc) |
1da177e4 LT |
556 | { |
557 | int i, cur = fg_console; | |
558 | ||
559 | /* Currently switching? Queue this next switch relative to that. */ | |
560 | if (want_console != -1) | |
561 | cur = want_console; | |
562 | ||
563 | for (i = cur+1; i != cur; i++) { | |
564 | if (i == MAX_NR_CONSOLES) | |
565 | i = 0; | |
566 | if (vc_cons_allocated(i)) | |
567 | break; | |
568 | } | |
569 | set_console(i); | |
570 | } | |
571 | ||
7d12e780 | 572 | static void fn_send_intr(struct vc_data *vc) |
1da177e4 LT |
573 | { |
574 | struct tty_struct *tty = vc->vc_tty; | |
575 | ||
576 | if (!tty) | |
577 | return; | |
578 | tty_insert_flip_char(tty, 0, TTY_BREAK); | |
579 | con_schedule_flip(tty); | |
580 | } | |
581 | ||
7d12e780 | 582 | static void fn_scroll_forw(struct vc_data *vc) |
1da177e4 LT |
583 | { |
584 | scrollfront(vc, 0); | |
585 | } | |
586 | ||
7d12e780 | 587 | static void fn_scroll_back(struct vc_data *vc) |
1da177e4 LT |
588 | { |
589 | scrollback(vc, 0); | |
590 | } | |
591 | ||
7d12e780 | 592 | static void fn_show_mem(struct vc_data *vc) |
1da177e4 LT |
593 | { |
594 | show_mem(); | |
595 | } | |
596 | ||
7d12e780 | 597 | static void fn_show_state(struct vc_data *vc) |
1da177e4 LT |
598 | { |
599 | show_state(); | |
600 | } | |
601 | ||
7d12e780 | 602 | static void fn_boot_it(struct vc_data *vc) |
1da177e4 LT |
603 | { |
604 | ctrl_alt_del(); | |
605 | } | |
606 | ||
7d12e780 | 607 | static void fn_compose(struct vc_data *vc) |
1da177e4 LT |
608 | { |
609 | dead_key_next = 1; | |
610 | } | |
611 | ||
7d12e780 | 612 | static void fn_spawn_con(struct vc_data *vc) |
1da177e4 | 613 | { |
81af8d67 EB |
614 | spin_lock(&vt_spawn_con.lock); |
615 | if (vt_spawn_con.pid) | |
616 | if (kill_pid(vt_spawn_con.pid, vt_spawn_con.sig, 1)) { | |
617 | put_pid(vt_spawn_con.pid); | |
618 | vt_spawn_con.pid = NULL; | |
619 | } | |
620 | spin_unlock(&vt_spawn_con.lock); | |
1da177e4 LT |
621 | } |
622 | ||
7d12e780 | 623 | static void fn_SAK(struct vc_data *vc) |
1da177e4 | 624 | { |
8b6312f4 | 625 | struct work_struct *SAK_work = &vc_cons[fg_console].SAK_work; |
8b6312f4 | 626 | schedule_work(SAK_work); |
1da177e4 LT |
627 | } |
628 | ||
7d12e780 | 629 | static void fn_null(struct vc_data *vc) |
1da177e4 LT |
630 | { |
631 | compute_shiftstate(); | |
632 | } | |
633 | ||
634 | /* | |
635 | * Special key handlers | |
636 | */ | |
7d12e780 | 637 | static void k_ignore(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
638 | { |
639 | } | |
640 | ||
7d12e780 | 641 | static void k_spec(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
642 | { |
643 | if (up_flag) | |
644 | return; | |
645 | if (value >= ARRAY_SIZE(fn_handler)) | |
646 | return; | |
fe1e8604 DT |
647 | if ((kbd->kbdmode == VC_RAW || |
648 | kbd->kbdmode == VC_MEDIUMRAW) && | |
1da177e4 LT |
649 | value != KVAL(K_SAK)) |
650 | return; /* SAK is allowed even in raw mode */ | |
7d12e780 | 651 | fn_handler[value](vc); |
1da177e4 LT |
652 | } |
653 | ||
7d12e780 | 654 | static void k_lowercase(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
655 | { |
656 | printk(KERN_ERR "keyboard.c: k_lowercase was called - impossible\n"); | |
657 | } | |
658 | ||
7d12e780 | 659 | static void k_unicode(struct vc_data *vc, unsigned int value, char up_flag) |
1da177e4 LT |
660 | { |
661 | if (up_flag) | |
662 | return; /* no action, if this is a key release */ | |
663 | ||
664 | if (diacr) | |
665 | value = handle_diacr(vc, value); | |
666 | ||
667 | if (dead_key_next) { | |
668 | dead_key_next = 0; | |
669 | diacr = value; | |
670 | return; | |
671 | } | |
b9ec4e10 | 672 | if (kbd->kbdmode == VC_UNICODE) |
04c71976 ST |
673 | to_utf8(vc, value); |
674 | else { | |
675 | int c = conv_uni_to_8bit(value); | |
676 | if (c != -1) | |
677 | put_queue(vc, c); | |
678 | } | |
1da177e4 LT |
679 | } |
680 | ||
681 | /* | |
682 | * Handle dead key. Note that we now may have several | |
683 | * dead keys modifying the same character. Very useful | |
684 | * for Vietnamese. | |
685 | */ | |
7d12e780 | 686 | static void k_deadunicode(struct vc_data *vc, unsigned int value, char up_flag) |
1da177e4 LT |
687 | { |
688 | if (up_flag) | |
689 | return; | |
690 | diacr = (diacr ? handle_diacr(vc, value) : value); | |
691 | } | |
692 | ||
7d12e780 | 693 | static void k_self(struct vc_data *vc, unsigned char value, char up_flag) |
b9ec4e10 | 694 | { |
d2187ebd | 695 | k_unicode(vc, conv_8bit_to_uni(value), up_flag); |
b9ec4e10 ST |
696 | } |
697 | ||
7d12e780 | 698 | static void k_dead2(struct vc_data *vc, unsigned char value, char up_flag) |
b9ec4e10 | 699 | { |
7d12e780 | 700 | k_deadunicode(vc, value, up_flag); |
b9ec4e10 ST |
701 | } |
702 | ||
1da177e4 LT |
703 | /* |
704 | * Obsolete - for backwards compatibility only | |
705 | */ | |
7d12e780 | 706 | static void k_dead(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 707 | { |
0f5e560e | 708 | static const unsigned char ret_diacr[NR_DEAD] = {'`', '\'', '^', '~', '"', ',' }; |
1da177e4 | 709 | value = ret_diacr[value]; |
7d12e780 | 710 | k_deadunicode(vc, value, up_flag); |
1da177e4 LT |
711 | } |
712 | ||
7d12e780 | 713 | static void k_cons(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
714 | { |
715 | if (up_flag) | |
716 | return; | |
717 | set_console(value); | |
718 | } | |
719 | ||
7d12e780 | 720 | static void k_fn(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
721 | { |
722 | unsigned v; | |
723 | ||
724 | if (up_flag) | |
725 | return; | |
726 | v = value; | |
727 | if (v < ARRAY_SIZE(func_table)) { | |
728 | if (func_table[value]) | |
729 | puts_queue(vc, func_table[value]); | |
730 | } else | |
731 | printk(KERN_ERR "k_fn called with value=%d\n", value); | |
732 | } | |
733 | ||
7d12e780 | 734 | static void k_cur(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 735 | { |
e52b29c2 | 736 | static const char cur_chars[] = "BDCA"; |
1da177e4 LT |
737 | |
738 | if (up_flag) | |
739 | return; | |
740 | applkey(vc, cur_chars[value], vc_kbd_mode(kbd, VC_CKMODE)); | |
741 | } | |
742 | ||
7d12e780 | 743 | static void k_pad(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 744 | { |
0f5e560e AM |
745 | static const char pad_chars[] = "0123456789+-*/\015,.?()#"; |
746 | static const char app_map[] = "pqrstuvwxylSRQMnnmPQS"; | |
1da177e4 LT |
747 | |
748 | if (up_flag) | |
749 | return; /* no action, if this is a key release */ | |
750 | ||
751 | /* kludge... shift forces cursor/number keys */ | |
752 | if (vc_kbd_mode(kbd, VC_APPLIC) && !shift_down[KG_SHIFT]) { | |
753 | applkey(vc, app_map[value], 1); | |
754 | return; | |
755 | } | |
756 | ||
757 | if (!vc_kbd_led(kbd, VC_NUMLOCK)) | |
758 | switch (value) { | |
759 | case KVAL(K_PCOMMA): | |
760 | case KVAL(K_PDOT): | |
7d12e780 | 761 | k_fn(vc, KVAL(K_REMOVE), 0); |
1da177e4 LT |
762 | return; |
763 | case KVAL(K_P0): | |
7d12e780 | 764 | k_fn(vc, KVAL(K_INSERT), 0); |
1da177e4 LT |
765 | return; |
766 | case KVAL(K_P1): | |
7d12e780 | 767 | k_fn(vc, KVAL(K_SELECT), 0); |
1da177e4 LT |
768 | return; |
769 | case KVAL(K_P2): | |
7d12e780 | 770 | k_cur(vc, KVAL(K_DOWN), 0); |
1da177e4 LT |
771 | return; |
772 | case KVAL(K_P3): | |
7d12e780 | 773 | k_fn(vc, KVAL(K_PGDN), 0); |
1da177e4 LT |
774 | return; |
775 | case KVAL(K_P4): | |
7d12e780 | 776 | k_cur(vc, KVAL(K_LEFT), 0); |
1da177e4 LT |
777 | return; |
778 | case KVAL(K_P6): | |
7d12e780 | 779 | k_cur(vc, KVAL(K_RIGHT), 0); |
1da177e4 LT |
780 | return; |
781 | case KVAL(K_P7): | |
7d12e780 | 782 | k_fn(vc, KVAL(K_FIND), 0); |
1da177e4 LT |
783 | return; |
784 | case KVAL(K_P8): | |
7d12e780 | 785 | k_cur(vc, KVAL(K_UP), 0); |
1da177e4 LT |
786 | return; |
787 | case KVAL(K_P9): | |
7d12e780 | 788 | k_fn(vc, KVAL(K_PGUP), 0); |
1da177e4 LT |
789 | return; |
790 | case KVAL(K_P5): | |
791 | applkey(vc, 'G', vc_kbd_mode(kbd, VC_APPLIC)); | |
792 | return; | |
793 | } | |
794 | ||
795 | put_queue(vc, pad_chars[value]); | |
796 | if (value == KVAL(K_PENTER) && vc_kbd_mode(kbd, VC_CRLF)) | |
797 | put_queue(vc, 10); | |
798 | } | |
799 | ||
7d12e780 | 800 | static void k_shift(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
801 | { |
802 | int old_state = shift_state; | |
803 | ||
804 | if (rep) | |
805 | return; | |
806 | /* | |
807 | * Mimic typewriter: | |
808 | * a CapsShift key acts like Shift but undoes CapsLock | |
809 | */ | |
810 | if (value == KVAL(K_CAPSSHIFT)) { | |
811 | value = KVAL(K_SHIFT); | |
812 | if (!up_flag) | |
813 | clr_vc_kbd_led(kbd, VC_CAPSLOCK); | |
814 | } | |
815 | ||
816 | if (up_flag) { | |
817 | /* | |
818 | * handle the case that two shift or control | |
819 | * keys are depressed simultaneously | |
820 | */ | |
821 | if (shift_down[value]) | |
822 | shift_down[value]--; | |
823 | } else | |
824 | shift_down[value]++; | |
825 | ||
826 | if (shift_down[value]) | |
827 | shift_state |= (1 << value); | |
828 | else | |
829 | shift_state &= ~(1 << value); | |
830 | ||
831 | /* kludge */ | |
832 | if (up_flag && shift_state != old_state && npadch != -1) { | |
833 | if (kbd->kbdmode == VC_UNICODE) | |
759448f4 | 834 | to_utf8(vc, npadch); |
1da177e4 LT |
835 | else |
836 | put_queue(vc, npadch & 0xff); | |
837 | npadch = -1; | |
838 | } | |
839 | } | |
840 | ||
7d12e780 | 841 | static void k_meta(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
842 | { |
843 | if (up_flag) | |
844 | return; | |
845 | ||
846 | if (vc_kbd_mode(kbd, VC_META)) { | |
847 | put_queue(vc, '\033'); | |
848 | put_queue(vc, value); | |
849 | } else | |
850 | put_queue(vc, value | 0x80); | |
851 | } | |
852 | ||
7d12e780 | 853 | static void k_ascii(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
854 | { |
855 | int base; | |
856 | ||
857 | if (up_flag) | |
858 | return; | |
859 | ||
860 | if (value < 10) { | |
861 | /* decimal input of code, while Alt depressed */ | |
862 | base = 10; | |
863 | } else { | |
864 | /* hexadecimal input of code, while AltGr depressed */ | |
865 | value -= 10; | |
866 | base = 16; | |
867 | } | |
868 | ||
869 | if (npadch == -1) | |
870 | npadch = value; | |
871 | else | |
872 | npadch = npadch * base + value; | |
873 | } | |
874 | ||
7d12e780 | 875 | static void k_lock(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
876 | { |
877 | if (up_flag || rep) | |
878 | return; | |
879 | chg_vc_kbd_lock(kbd, value); | |
880 | } | |
881 | ||
7d12e780 | 882 | static void k_slock(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 883 | { |
7d12e780 | 884 | k_shift(vc, value, up_flag); |
1da177e4 LT |
885 | if (up_flag || rep) |
886 | return; | |
887 | chg_vc_kbd_slock(kbd, value); | |
888 | /* try to make Alt, oops, AltGr and such work */ | |
889 | if (!key_maps[kbd->lockstate ^ kbd->slockstate]) { | |
890 | kbd->slockstate = 0; | |
891 | chg_vc_kbd_slock(kbd, value); | |
892 | } | |
893 | } | |
894 | ||
b9ec4e10 | 895 | /* by default, 300ms interval for combination release */ |
77426d72 ST |
896 | static unsigned brl_timeout = 300; |
897 | MODULE_PARM_DESC(brl_timeout, "Braille keys release delay in ms (0 for commit on first key release)"); | |
898 | module_param(brl_timeout, uint, 0644); | |
899 | ||
900 | static unsigned brl_nbchords = 1; | |
901 | MODULE_PARM_DESC(brl_nbchords, "Number of chords that produce a braille pattern (0 for dead chords)"); | |
902 | module_param(brl_nbchords, uint, 0644); | |
903 | ||
7d12e780 | 904 | static void k_brlcommit(struct vc_data *vc, unsigned int pattern, char up_flag) |
77426d72 ST |
905 | { |
906 | static unsigned long chords; | |
907 | static unsigned committed; | |
908 | ||
909 | if (!brl_nbchords) | |
7d12e780 | 910 | k_deadunicode(vc, BRL_UC_ROW | pattern, up_flag); |
77426d72 ST |
911 | else { |
912 | committed |= pattern; | |
913 | chords++; | |
914 | if (chords == brl_nbchords) { | |
7d12e780 | 915 | k_unicode(vc, BRL_UC_ROW | committed, up_flag); |
77426d72 ST |
916 | chords = 0; |
917 | committed = 0; | |
918 | } | |
919 | } | |
920 | } | |
921 | ||
7d12e780 | 922 | static void k_brl(struct vc_data *vc, unsigned char value, char up_flag) |
b9ec4e10 ST |
923 | { |
924 | static unsigned pressed,committing; | |
925 | static unsigned long releasestart; | |
926 | ||
927 | if (kbd->kbdmode != VC_UNICODE) { | |
928 | if (!up_flag) | |
929 | printk("keyboard mode must be unicode for braille patterns\n"); | |
930 | return; | |
931 | } | |
932 | ||
933 | if (!value) { | |
7d12e780 | 934 | k_unicode(vc, BRL_UC_ROW, up_flag); |
b9ec4e10 ST |
935 | return; |
936 | } | |
937 | ||
938 | if (value > 8) | |
939 | return; | |
940 | ||
b9ec4e10 ST |
941 | if (up_flag) { |
942 | if (brl_timeout) { | |
943 | if (!committing || | |
b39b0440 JL |
944 | time_after(jiffies, |
945 | releasestart + msecs_to_jiffies(brl_timeout))) { | |
b9ec4e10 ST |
946 | committing = pressed; |
947 | releasestart = jiffies; | |
948 | } | |
949 | pressed &= ~(1 << (value - 1)); | |
950 | if (!pressed) { | |
951 | if (committing) { | |
7d12e780 | 952 | k_brlcommit(vc, committing, 0); |
b9ec4e10 ST |
953 | committing = 0; |
954 | } | |
955 | } | |
956 | } else { | |
957 | if (committing) { | |
7d12e780 | 958 | k_brlcommit(vc, committing, 0); |
b9ec4e10 ST |
959 | committing = 0; |
960 | } | |
961 | pressed &= ~(1 << (value - 1)); | |
962 | } | |
963 | } else { | |
964 | pressed |= 1 << (value - 1); | |
965 | if (!brl_timeout) | |
966 | committing = pressed; | |
967 | } | |
968 | } | |
969 | ||
1da177e4 LT |
970 | /* |
971 | * The leds display either (i) the status of NumLock, CapsLock, ScrollLock, | |
972 | * or (ii) whatever pattern of lights people want to show using KDSETLED, | |
973 | * or (iii) specified bits of specified words in kernel memory. | |
974 | */ | |
975 | unsigned char getledstate(void) | |
976 | { | |
977 | return ledstate; | |
978 | } | |
979 | ||
980 | void setledstate(struct kbd_struct *kbd, unsigned int led) | |
981 | { | |
982 | if (!(led & ~7)) { | |
983 | ledioctl = led; | |
984 | kbd->ledmode = LED_SHOW_IOCTL; | |
985 | } else | |
986 | kbd->ledmode = LED_SHOW_FLAGS; | |
987 | set_leds(); | |
988 | } | |
989 | ||
990 | static inline unsigned char getleds(void) | |
991 | { | |
992 | struct kbd_struct *kbd = kbd_table + fg_console; | |
993 | unsigned char leds; | |
994 | int i; | |
995 | ||
996 | if (kbd->ledmode == LED_SHOW_IOCTL) | |
997 | return ledioctl; | |
998 | ||
999 | leds = kbd->ledflagstate; | |
1000 | ||
1001 | if (kbd->ledmode == LED_SHOW_MEM) { | |
1002 | for (i = 0; i < 3; i++) | |
1003 | if (ledptrs[i].valid) { | |
1004 | if (*ledptrs[i].addr & ledptrs[i].mask) | |
1005 | leds |= (1 << i); | |
1006 | else | |
1007 | leds &= ~(1 << i); | |
1008 | } | |
1009 | } | |
1010 | return leds; | |
1011 | } | |
1012 | ||
66d2a595 DT |
1013 | static int kbd_update_leds_helper(struct input_handle *handle, void *data) |
1014 | { | |
1015 | unsigned char leds = *(unsigned char *)data; | |
1016 | ||
1017 | if (test_bit(EV_LED, handle->dev->evbit)) { | |
1018 | input_inject_event(handle, EV_LED, LED_SCROLLL, !!(leds & 0x01)); | |
1019 | input_inject_event(handle, EV_LED, LED_NUML, !!(leds & 0x02)); | |
1020 | input_inject_event(handle, EV_LED, LED_CAPSL, !!(leds & 0x04)); | |
1021 | input_inject_event(handle, EV_SYN, SYN_REPORT, 0); | |
1022 | } | |
1023 | ||
1024 | return 0; | |
1025 | } | |
1026 | ||
1da177e4 | 1027 | /* |
66d2a595 DT |
1028 | * This is the tasklet that updates LED state on all keyboards |
1029 | * attached to the box. The reason we use tasklet is that we | |
1030 | * need to handle the scenario when keyboard handler is not | |
1031 | * registered yet but we already getting updates form VT to | |
1032 | * update led state. | |
1da177e4 | 1033 | */ |
1da177e4 LT |
1034 | static void kbd_bh(unsigned long dummy) |
1035 | { | |
1da177e4 LT |
1036 | unsigned char leds = getleds(); |
1037 | ||
1038 | if (leds != ledstate) { | |
66d2a595 DT |
1039 | input_handler_for_each_handle(&kbd_handler, &leds, |
1040 | kbd_update_leds_helper); | |
1041 | ledstate = leds; | |
1da177e4 | 1042 | } |
1da177e4 LT |
1043 | } |
1044 | ||
1045 | DECLARE_TASKLET_DISABLED(keyboard_tasklet, kbd_bh, 0); | |
1046 | ||
1da177e4 | 1047 | #if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_ALPHA) ||\ |
0b57ee9e AB |
1048 | defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_SPARC) ||\ |
1049 | defined(CONFIG_PARISC) || defined(CONFIG_SUPERH) ||\ | |
3a4e832c HCE |
1050 | (defined(CONFIG_ARM) && defined(CONFIG_KEYBOARD_ATKBD) && !defined(CONFIG_ARCH_RPC)) ||\ |
1051 | defined(CONFIG_AVR32) | |
1da177e4 LT |
1052 | |
1053 | #define HW_RAW(dev) (test_bit(EV_MSC, dev->evbit) && test_bit(MSC_RAW, dev->mscbit) &&\ | |
1054 | ((dev)->id.bustype == BUS_I8042) && ((dev)->id.vendor == 0x0001) && ((dev)->id.product == 0x0001)) | |
1055 | ||
0f5e560e | 1056 | static const unsigned short x86_keycodes[256] = |
1da177e4 LT |
1057 | { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, |
1058 | 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, | |
1059 | 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, | |
1060 | 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, | |
1061 | 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, | |
1062 | 80, 81, 82, 83, 84,118, 86, 87, 88,115,120,119,121,112,123, 92, | |
896cdc7b | 1063 | 284,285,309, 0,312, 91,327,328,329,331,333,335,336,337,338,339, |
1da177e4 LT |
1064 | 367,288,302,304,350, 89,334,326,267,126,268,269,125,347,348,349, |
1065 | 360,261,262,263,268,376,100,101,321,316,373,286,289,102,351,355, | |
72a42f24 HG |
1066 | 103,104,105,275,287,279,258,106,274,107,294,364,358,363,362,361, |
1067 | 291,108,381,281,290,272,292,305,280, 99,112,257,306,359,113,114, | |
1da177e4 LT |
1068 | 264,117,271,374,379,265,266, 93, 94, 95, 85,259,375,260, 90,116, |
1069 | 377,109,111,277,278,282,283,295,296,297,299,300,301,293,303,307, | |
1070 | 308,310,313,314,315,317,318,319,320,357,322,323,324,325,276,330, | |
1071 | 332,340,365,342,343,344,345,346,356,270,341,368,369,370,371,372 }; | |
1072 | ||
0b57ee9e | 1073 | #ifdef CONFIG_SPARC |
1da177e4 LT |
1074 | static int sparc_l1_a_state = 0; |
1075 | extern void sun_do_break(void); | |
1076 | #endif | |
1077 | ||
fe1e8604 | 1078 | static int emulate_raw(struct vc_data *vc, unsigned int keycode, |
1da177e4 LT |
1079 | unsigned char up_flag) |
1080 | { | |
896cdc7b | 1081 | int code; |
1da177e4 LT |
1082 | |
1083 | switch (keycode) { | |
1084 | case KEY_PAUSE: | |
1085 | put_queue(vc, 0xe1); | |
1086 | put_queue(vc, 0x1d | up_flag); | |
1087 | put_queue(vc, 0x45 | up_flag); | |
896cdc7b DT |
1088 | break; |
1089 | ||
b9ab58dd | 1090 | case KEY_HANGEUL: |
0ae051a1 DT |
1091 | if (!up_flag) |
1092 | put_queue(vc, 0xf2); | |
896cdc7b DT |
1093 | break; |
1094 | ||
1da177e4 | 1095 | case KEY_HANJA: |
0ae051a1 DT |
1096 | if (!up_flag) |
1097 | put_queue(vc, 0xf1); | |
896cdc7b | 1098 | break; |
1da177e4 | 1099 | |
896cdc7b DT |
1100 | case KEY_SYSRQ: |
1101 | /* | |
1102 | * Real AT keyboards (that's what we're trying | |
1103 | * to emulate here emit 0xe0 0x2a 0xe0 0x37 when | |
1104 | * pressing PrtSc/SysRq alone, but simply 0x54 | |
1105 | * when pressing Alt+PrtSc/SysRq. | |
1106 | */ | |
1107 | if (sysrq_alt) { | |
1108 | put_queue(vc, 0x54 | up_flag); | |
1109 | } else { | |
1110 | put_queue(vc, 0xe0); | |
1111 | put_queue(vc, 0x2a | up_flag); | |
1112 | put_queue(vc, 0xe0); | |
1113 | put_queue(vc, 0x37 | up_flag); | |
1114 | } | |
1115 | break; | |
1116 | ||
1117 | default: | |
1118 | if (keycode > 255) | |
1119 | return -1; | |
1da177e4 | 1120 | |
896cdc7b DT |
1121 | code = x86_keycodes[keycode]; |
1122 | if (!code) | |
1123 | return -1; | |
1da177e4 | 1124 | |
896cdc7b DT |
1125 | if (code & 0x100) |
1126 | put_queue(vc, 0xe0); | |
1127 | put_queue(vc, (code & 0x7f) | up_flag); | |
1da177e4 | 1128 | |
896cdc7b | 1129 | break; |
1da177e4 LT |
1130 | } |
1131 | ||
1132 | return 0; | |
1133 | } | |
1134 | ||
1135 | #else | |
1136 | ||
1137 | #define HW_RAW(dev) 0 | |
1138 | ||
1da177e4 LT |
1139 | static int emulate_raw(struct vc_data *vc, unsigned int keycode, unsigned char up_flag) |
1140 | { | |
1141 | if (keycode > 127) | |
1142 | return -1; | |
1143 | ||
1144 | put_queue(vc, keycode | up_flag); | |
1145 | return 0; | |
1146 | } | |
1147 | #endif | |
1148 | ||
1149 | static void kbd_rawcode(unsigned char data) | |
1150 | { | |
1151 | struct vc_data *vc = vc_cons[fg_console].d; | |
0c09b2ac | 1152 | kbd = kbd_table + vc->vc_num; |
1da177e4 LT |
1153 | if (kbd->kbdmode == VC_RAW) |
1154 | put_queue(vc, data); | |
1155 | } | |
1156 | ||
7d12e780 | 1157 | static void kbd_keycode(unsigned int keycode, int down, int hw_raw) |
1da177e4 LT |
1158 | { |
1159 | struct vc_data *vc = vc_cons[fg_console].d; | |
1160 | unsigned short keysym, *key_map; | |
1161 | unsigned char type, raw_mode; | |
1162 | struct tty_struct *tty; | |
1163 | int shift_final; | |
41ab4396 | 1164 | struct keyboard_notifier_param param = { .vc = vc, .value = keycode, .down = down }; |
1da177e4 LT |
1165 | |
1166 | tty = vc->vc_tty; | |
1167 | ||
1168 | if (tty && (!tty->driver_data)) { | |
1169 | /* No driver data? Strange. Okay we fix it then. */ | |
1170 | tty->driver_data = vc; | |
1171 | } | |
1172 | ||
0c09b2ac | 1173 | kbd = kbd_table + vc->vc_num; |
1da177e4 LT |
1174 | |
1175 | if (keycode == KEY_LEFTALT || keycode == KEY_RIGHTALT) | |
d2be8ee5 | 1176 | sysrq_alt = down ? keycode : 0; |
0b57ee9e | 1177 | #ifdef CONFIG_SPARC |
1da177e4 LT |
1178 | if (keycode == KEY_STOP) |
1179 | sparc_l1_a_state = down; | |
1180 | #endif | |
1181 | ||
1182 | rep = (down == 2); | |
1183 | ||
1184 | #ifdef CONFIG_MAC_EMUMOUSEBTN | |
1185 | if (mac_hid_mouse_emulate_buttons(1, keycode, down)) | |
1186 | return; | |
1187 | #endif /* CONFIG_MAC_EMUMOUSEBTN */ | |
1188 | ||
1189 | if ((raw_mode = (kbd->kbdmode == VC_RAW)) && !hw_raw) | |
1190 | if (emulate_raw(vc, keycode, !down << 7)) | |
9e35d206 | 1191 | if (keycode < BTN_MISC && printk_ratelimit()) |
1da177e4 LT |
1192 | printk(KERN_WARNING "keyboard.c: can't emulate rawmode for keycode %d\n", keycode); |
1193 | ||
1194 | #ifdef CONFIG_MAGIC_SYSRQ /* Handle the SysRq Hack */ | |
1195 | if (keycode == KEY_SYSRQ && (sysrq_down || (down == 1 && sysrq_alt))) { | |
d2be8ee5 FR |
1196 | if (!sysrq_down) { |
1197 | sysrq_down = down; | |
1198 | sysrq_alt_use = sysrq_alt; | |
1199 | } | |
1da177e4 LT |
1200 | return; |
1201 | } | |
d2be8ee5 FR |
1202 | if (sysrq_down && !down && keycode == sysrq_alt_use) |
1203 | sysrq_down = 0; | |
1da177e4 | 1204 | if (sysrq_down && down && !rep) { |
7d12e780 | 1205 | handle_sysrq(kbd_sysrq_xlate[keycode], tty); |
1da177e4 LT |
1206 | return; |
1207 | } | |
1208 | #endif | |
0b57ee9e | 1209 | #ifdef CONFIG_SPARC |
1da177e4 LT |
1210 | if (keycode == KEY_A && sparc_l1_a_state) { |
1211 | sparc_l1_a_state = 0; | |
1212 | sun_do_break(); | |
1213 | } | |
1214 | #endif | |
1215 | ||
1216 | if (kbd->kbdmode == VC_MEDIUMRAW) { | |
1217 | /* | |
1218 | * This is extended medium raw mode, with keys above 127 | |
1219 | * encoded as 0, high 7 bits, low 7 bits, with the 0 bearing | |
1220 | * the 'up' flag if needed. 0 is reserved, so this shouldn't | |
1221 | * interfere with anything else. The two bytes after 0 will | |
1222 | * always have the up flag set not to interfere with older | |
1223 | * applications. This allows for 16384 different keycodes, | |
1224 | * which should be enough. | |
1225 | */ | |
1226 | if (keycode < 128) { | |
1227 | put_queue(vc, keycode | (!down << 7)); | |
1228 | } else { | |
1229 | put_queue(vc, !down << 7); | |
1230 | put_queue(vc, (keycode >> 7) | 0x80); | |
1231 | put_queue(vc, keycode | 0x80); | |
1232 | } | |
1233 | raw_mode = 1; | |
1234 | } | |
1235 | ||
1236 | if (down) | |
1237 | set_bit(keycode, key_down); | |
1238 | else | |
1239 | clear_bit(keycode, key_down); | |
1240 | ||
fe1e8604 DT |
1241 | if (rep && |
1242 | (!vc_kbd_mode(kbd, VC_REPEAT) || | |
f34d7a5b | 1243 | (tty && !L_ECHO(tty) && tty_chars_in_buffer(tty)))) { |
1da177e4 LT |
1244 | /* |
1245 | * Don't repeat a key if the input buffers are not empty and the | |
fe1e8604 | 1246 | * characters get aren't echoed locally. This makes key repeat |
1da177e4 LT |
1247 | * usable with slow applications and under heavy loads. |
1248 | */ | |
1249 | return; | |
1250 | } | |
1251 | ||
41ab4396 | 1252 | param.shift = shift_final = (shift_state | kbd->slockstate) ^ kbd->lockstate; |
0beb4f6f | 1253 | param.ledstate = kbd->ledflagstate; |
1da177e4 LT |
1254 | key_map = key_maps[shift_final]; |
1255 | ||
41ab4396 ST |
1256 | if (atomic_notifier_call_chain(&keyboard_notifier_list, KBD_KEYCODE, ¶m) == NOTIFY_STOP || !key_map) { |
1257 | atomic_notifier_call_chain(&keyboard_notifier_list, KBD_UNBOUND_KEYCODE, ¶m); | |
1da177e4 LT |
1258 | compute_shiftstate(); |
1259 | kbd->slockstate = 0; | |
1260 | return; | |
1261 | } | |
1262 | ||
161c6091 | 1263 | if (keycode >= NR_KEYS) |
b9ec4e10 | 1264 | if (keycode >= KEY_BRL_DOT1 && keycode <= KEY_BRL_DOT8) |
46a96546 | 1265 | keysym = U(K(KT_BRL, keycode - KEY_BRL_DOT1 + 1)); |
b9ec4e10 ST |
1266 | else |
1267 | return; | |
1268 | else | |
1269 | keysym = key_map[keycode]; | |
1da177e4 | 1270 | |
1da177e4 LT |
1271 | type = KTYP(keysym); |
1272 | ||
1273 | if (type < 0xf0) { | |
41ab4396 ST |
1274 | param.value = keysym; |
1275 | if (atomic_notifier_call_chain(&keyboard_notifier_list, KBD_UNICODE, ¶m) == NOTIFY_STOP) | |
1276 | return; | |
fe1e8604 DT |
1277 | if (down && !raw_mode) |
1278 | to_utf8(vc, keysym); | |
1da177e4 LT |
1279 | return; |
1280 | } | |
1281 | ||
1282 | type -= 0xf0; | |
1283 | ||
1da177e4 LT |
1284 | if (type == KT_LETTER) { |
1285 | type = KT_LATIN; | |
1286 | if (vc_kbd_led(kbd, VC_CAPSLOCK)) { | |
1287 | key_map = key_maps[shift_final ^ (1 << KG_SHIFT)]; | |
1288 | if (key_map) | |
1289 | keysym = key_map[keycode]; | |
1290 | } | |
1291 | } | |
41ab4396 ST |
1292 | param.value = keysym; |
1293 | ||
1294 | if (atomic_notifier_call_chain(&keyboard_notifier_list, KBD_KEYSYM, ¶m) == NOTIFY_STOP) | |
1295 | return; | |
1296 | ||
1297 | if (raw_mode && type != KT_SPEC && type != KT_SHIFT) | |
1298 | return; | |
1da177e4 | 1299 | |
7d12e780 | 1300 | (*k_handler[type])(vc, keysym & 0xff, !down); |
1da177e4 | 1301 | |
0beb4f6f | 1302 | param.ledstate = kbd->ledflagstate; |
41ab4396 ST |
1303 | atomic_notifier_call_chain(&keyboard_notifier_list, KBD_POST_KEYSYM, ¶m); |
1304 | ||
1da177e4 LT |
1305 | if (type != KT_SLOCK) |
1306 | kbd->slockstate = 0; | |
1307 | } | |
1308 | ||
fe1e8604 | 1309 | static void kbd_event(struct input_handle *handle, unsigned int event_type, |
1da177e4 LT |
1310 | unsigned int event_code, int value) |
1311 | { | |
21cea58e DT |
1312 | /* We are called with interrupts disabled, just take the lock */ |
1313 | spin_lock(&kbd_event_lock); | |
1314 | ||
1da177e4 LT |
1315 | if (event_type == EV_MSC && event_code == MSC_RAW && HW_RAW(handle->dev)) |
1316 | kbd_rawcode(value); | |
1317 | if (event_type == EV_KEY) | |
7d12e780 | 1318 | kbd_keycode(event_code, value, HW_RAW(handle->dev)); |
21cea58e DT |
1319 | |
1320 | spin_unlock(&kbd_event_lock); | |
1321 | ||
1da177e4 LT |
1322 | tasklet_schedule(&keyboard_tasklet); |
1323 | do_poke_blanked_console = 1; | |
1324 | schedule_console_callback(); | |
1325 | } | |
1326 | ||
1da177e4 LT |
1327 | /* |
1328 | * When a keyboard (or other input device) is found, the kbd_connect | |
1329 | * function is called. The function then looks at the device, and if it | |
1330 | * likes it, it can open it and get events from it. In this (kbd_connect) | |
1331 | * function, we should decide which VT to bind that keyboard to initially. | |
1332 | */ | |
5b2a0826 DT |
1333 | static int kbd_connect(struct input_handler *handler, struct input_dev *dev, |
1334 | const struct input_device_id *id) | |
1da177e4 LT |
1335 | { |
1336 | struct input_handle *handle; | |
5b2a0826 | 1337 | int error; |
1da177e4 LT |
1338 | int i; |
1339 | ||
1340 | for (i = KEY_RESERVED; i < BTN_MISC; i++) | |
fe1e8604 DT |
1341 | if (test_bit(i, dev->keybit)) |
1342 | break; | |
1da177e4 | 1343 | |
fe1e8604 | 1344 | if (i == BTN_MISC && !test_bit(EV_SND, dev->evbit)) |
5b2a0826 | 1345 | return -ENODEV; |
1da177e4 | 1346 | |
22479e1c DT |
1347 | handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL); |
1348 | if (!handle) | |
5b2a0826 | 1349 | return -ENOMEM; |
1da177e4 LT |
1350 | |
1351 | handle->dev = dev; | |
1352 | handle->handler = handler; | |
fe1e8604 | 1353 | handle->name = "kbd"; |
1da177e4 | 1354 | |
5b2a0826 DT |
1355 | error = input_register_handle(handle); |
1356 | if (error) | |
1357 | goto err_free_handle; | |
1da177e4 | 1358 | |
5b2a0826 DT |
1359 | error = input_open_device(handle); |
1360 | if (error) | |
1361 | goto err_unregister_handle; | |
1362 | ||
1363 | return 0; | |
1364 | ||
1365 | err_unregister_handle: | |
1366 | input_unregister_handle(handle); | |
1367 | err_free_handle: | |
1368 | kfree(handle); | |
1369 | return error; | |
1da177e4 LT |
1370 | } |
1371 | ||
1372 | static void kbd_disconnect(struct input_handle *handle) | |
1373 | { | |
1374 | input_close_device(handle); | |
5b2a0826 | 1375 | input_unregister_handle(handle); |
1da177e4 LT |
1376 | kfree(handle); |
1377 | } | |
1378 | ||
c7e8dc6e DT |
1379 | /* |
1380 | * Start keyboard handler on the new keyboard by refreshing LED state to | |
1381 | * match the rest of the system. | |
1382 | */ | |
1383 | static void kbd_start(struct input_handle *handle) | |
1384 | { | |
c7e8dc6e | 1385 | tasklet_disable(&keyboard_tasklet); |
66d2a595 DT |
1386 | |
1387 | if (ledstate != 0xff) | |
1388 | kbd_update_leds_helper(handle, &ledstate); | |
1389 | ||
c7e8dc6e DT |
1390 | tasklet_enable(&keyboard_tasklet); |
1391 | } | |
1392 | ||
66e66118 | 1393 | static const struct input_device_id kbd_ids[] = { |
1da177e4 LT |
1394 | { |
1395 | .flags = INPUT_DEVICE_ID_MATCH_EVBIT, | |
7b19ada2 | 1396 | .evbit = { BIT_MASK(EV_KEY) }, |
1da177e4 | 1397 | }, |
fe1e8604 | 1398 | |
1da177e4 LT |
1399 | { |
1400 | .flags = INPUT_DEVICE_ID_MATCH_EVBIT, | |
7b19ada2 | 1401 | .evbit = { BIT_MASK(EV_SND) }, |
fe1e8604 | 1402 | }, |
1da177e4 LT |
1403 | |
1404 | { }, /* Terminating entry */ | |
1405 | }; | |
1406 | ||
1407 | MODULE_DEVICE_TABLE(input, kbd_ids); | |
1408 | ||
1409 | static struct input_handler kbd_handler = { | |
1410 | .event = kbd_event, | |
1411 | .connect = kbd_connect, | |
1412 | .disconnect = kbd_disconnect, | |
c7e8dc6e | 1413 | .start = kbd_start, |
1da177e4 LT |
1414 | .name = "kbd", |
1415 | .id_table = kbd_ids, | |
1416 | }; | |
1417 | ||
1418 | int __init kbd_init(void) | |
1419 | { | |
1420 | int i; | |
4263cf0f | 1421 | int error; |
1da177e4 | 1422 | |
2b192908 DT |
1423 | for (i = 0; i < MAX_NR_CONSOLES; i++) { |
1424 | kbd_table[i].ledflagstate = KBD_DEFLEDS; | |
1425 | kbd_table[i].default_ledflagstate = KBD_DEFLEDS; | |
1426 | kbd_table[i].ledmode = LED_SHOW_FLAGS; | |
1427 | kbd_table[i].lockstate = KBD_DEFLOCK; | |
1428 | kbd_table[i].slockstate = 0; | |
1429 | kbd_table[i].modeflags = KBD_DEFMODE; | |
2e8ecb9d | 1430 | kbd_table[i].kbdmode = default_utf8 ? VC_UNICODE : VC_XLATE; |
2b192908 | 1431 | } |
1da177e4 | 1432 | |
4263cf0f DT |
1433 | error = input_register_handler(&kbd_handler); |
1434 | if (error) | |
1435 | return error; | |
1da177e4 LT |
1436 | |
1437 | tasklet_enable(&keyboard_tasklet); | |
1438 | tasklet_schedule(&keyboard_tasklet); | |
1439 | ||
1440 | return 0; | |
1441 | } |