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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 | ||
9272e9a2 DT |
27 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
28 | ||
759448f4 | 29 | #include <linux/consolemap.h> |
1da177e4 LT |
30 | #include <linux/module.h> |
31 | #include <linux/sched.h> | |
32 | #include <linux/tty.h> | |
33 | #include <linux/tty_flip.h> | |
34 | #include <linux/mm.h> | |
35 | #include <linux/string.h> | |
36 | #include <linux/init.h> | |
37 | #include <linux/slab.h> | |
7d12e780 | 38 | #include <linux/irq.h> |
1da177e4 LT |
39 | |
40 | #include <linux/kbd_kern.h> | |
41 | #include <linux/kbd_diacr.h> | |
42 | #include <linux/vt_kern.h> | |
1da177e4 | 43 | #include <linux/input.h> |
83cc5ed3 | 44 | #include <linux/reboot.h> |
41ab4396 | 45 | #include <linux/notifier.h> |
b39b0440 | 46 | #include <linux/jiffies.h> |
1da177e4 | 47 | |
1da177e4 LT |
48 | extern void ctrl_alt_del(void); |
49 | ||
50 | /* | |
51 | * Exported functions/variables | |
52 | */ | |
53 | ||
54 | #define KBD_DEFMODE ((1 << VC_REPEAT) | (1 << VC_META)) | |
55 | ||
56 | /* | |
57 | * Some laptops take the 789uiojklm,. keys as number pad when NumLock is on. | |
58 | * This seems a good reason to start with NumLock off. On HIL keyboards | |
fe1e8604 | 59 | * of PARISC machines however there is no NumLock key and everyone expects the keypad |
1da177e4 LT |
60 | * to be used for numbers. |
61 | */ | |
62 | ||
63 | #if defined(CONFIG_PARISC) && (defined(CONFIG_KEYBOARD_HIL) || defined(CONFIG_KEYBOARD_HIL_OLD)) | |
64 | #define KBD_DEFLEDS (1 << VC_NUMLOCK) | |
65 | #else | |
66 | #define KBD_DEFLEDS 0 | |
67 | #endif | |
68 | ||
69 | #define KBD_DEFLOCK 0 | |
70 | ||
71 | void compute_shiftstate(void); | |
72 | ||
73 | /* | |
74 | * Handler Tables. | |
75 | */ | |
76 | ||
77 | #define K_HANDLERS\ | |
78 | k_self, k_fn, k_spec, k_pad,\ | |
79 | k_dead, k_cons, k_cur, k_shift,\ | |
80 | k_meta, k_ascii, k_lock, k_lowercase,\ | |
b9ec4e10 | 81 | k_slock, k_dead2, k_brl, k_ignore |
1da177e4 | 82 | |
fe1e8604 | 83 | typedef void (k_handler_fn)(struct vc_data *vc, unsigned char value, |
7d12e780 | 84 | char up_flag); |
1da177e4 | 85 | static k_handler_fn K_HANDLERS; |
97f5f0cd | 86 | static k_handler_fn *k_handler[16] = { K_HANDLERS }; |
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 | 135 | static unsigned char shift_down[NR_SHIFT]; /* shift state counters.. */ |
e0785572 | 136 | static bool dead_key_next; |
1da177e4 | 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 | ||
41ab4396 ST |
150 | /* |
151 | * Notifier list for console keyboard events | |
152 | */ | |
153 | static ATOMIC_NOTIFIER_HEAD(keyboard_notifier_list); | |
154 | ||
155 | int register_keyboard_notifier(struct notifier_block *nb) | |
156 | { | |
157 | return atomic_notifier_chain_register(&keyboard_notifier_list, nb); | |
158 | } | |
159 | EXPORT_SYMBOL_GPL(register_keyboard_notifier); | |
160 | ||
161 | int unregister_keyboard_notifier(struct notifier_block *nb) | |
162 | { | |
163 | return atomic_notifier_chain_unregister(&keyboard_notifier_list, nb); | |
164 | } | |
165 | EXPORT_SYMBOL_GPL(unregister_keyboard_notifier); | |
166 | ||
1da177e4 | 167 | /* |
c8e4c772 MR |
168 | * Translation of scancodes to keycodes. We set them on only the first |
169 | * keyboard in the list that accepts the scancode and keycode. | |
170 | * Explanation for not choosing the first attached keyboard anymore: | |
171 | * USB keyboards for example have two event devices: one for all "normal" | |
172 | * keys and one for extra function keys (like "volume up", "make coffee", | |
173 | * etc.). So this means that scancodes for the extra function keys won't | |
174 | * be valid for the first event device, but will be for the second. | |
1da177e4 | 175 | */ |
66d2a595 DT |
176 | |
177 | struct getset_keycode_data { | |
8613e4c2 | 178 | struct input_keymap_entry ke; |
66d2a595 DT |
179 | int error; |
180 | }; | |
181 | ||
182 | static int getkeycode_helper(struct input_handle *handle, void *data) | |
183 | { | |
184 | struct getset_keycode_data *d = data; | |
185 | ||
8613e4c2 | 186 | d->error = input_get_keycode(handle->dev, &d->ke); |
66d2a595 DT |
187 | |
188 | return d->error == 0; /* stop as soon as we successfully get one */ | |
189 | } | |
190 | ||
1da177e4 LT |
191 | int getkeycode(unsigned int scancode) |
192 | { | |
8613e4c2 MCC |
193 | struct getset_keycode_data d = { |
194 | .ke = { | |
195 | .flags = 0, | |
196 | .len = sizeof(scancode), | |
197 | .keycode = 0, | |
198 | }, | |
199 | .error = -ENODEV, | |
200 | }; | |
201 | ||
202 | memcpy(d.ke.scancode, &scancode, sizeof(scancode)); | |
c8e4c772 | 203 | |
66d2a595 | 204 | input_handler_for_each_handle(&kbd_handler, &d, getkeycode_helper); |
1da177e4 | 205 | |
8613e4c2 | 206 | return d.error ?: d.ke.keycode; |
66d2a595 DT |
207 | } |
208 | ||
209 | static int setkeycode_helper(struct input_handle *handle, void *data) | |
210 | { | |
211 | struct getset_keycode_data *d = data; | |
212 | ||
8613e4c2 | 213 | d->error = input_set_keycode(handle->dev, &d->ke); |
66d2a595 DT |
214 | |
215 | return d->error == 0; /* stop as soon as we successfully set one */ | |
1da177e4 LT |
216 | } |
217 | ||
218 | int setkeycode(unsigned int scancode, unsigned int keycode) | |
219 | { | |
8613e4c2 MCC |
220 | struct getset_keycode_data d = { |
221 | .ke = { | |
222 | .flags = 0, | |
223 | .len = sizeof(scancode), | |
224 | .keycode = keycode, | |
225 | }, | |
226 | .error = -ENODEV, | |
227 | }; | |
228 | ||
229 | memcpy(d.ke.scancode, &scancode, sizeof(scancode)); | |
c8e4c772 | 230 | |
66d2a595 | 231 | input_handler_for_each_handle(&kbd_handler, &d, setkeycode_helper); |
1da177e4 | 232 | |
66d2a595 | 233 | return d.error; |
1da177e4 LT |
234 | } |
235 | ||
236 | /* | |
18f7ad59 DT |
237 | * Making beeps and bells. Note that we prefer beeps to bells, but when |
238 | * shutting the sound off we do both. | |
1da177e4 | 239 | */ |
66d2a595 DT |
240 | |
241 | static int kd_sound_helper(struct input_handle *handle, void *data) | |
1da177e4 | 242 | { |
66d2a595 DT |
243 | unsigned int *hz = data; |
244 | struct input_dev *dev = handle->dev; | |
1da177e4 | 245 | |
66d2a595 | 246 | if (test_bit(EV_SND, dev->evbit)) { |
18f7ad59 | 247 | if (test_bit(SND_TONE, dev->sndbit)) { |
66d2a595 | 248 | input_inject_event(handle, EV_SND, SND_TONE, *hz); |
18f7ad59 DT |
249 | if (*hz) |
250 | return 0; | |
251 | } | |
252 | if (test_bit(SND_BELL, dev->sndbit)) | |
66d2a595 | 253 | input_inject_event(handle, EV_SND, SND_BELL, *hz ? 1 : 0); |
1da177e4 | 254 | } |
66d2a595 DT |
255 | |
256 | return 0; | |
257 | } | |
258 | ||
259 | static void kd_nosound(unsigned long ignored) | |
260 | { | |
261 | static unsigned int zero; | |
262 | ||
263 | input_handler_for_each_handle(&kbd_handler, &zero, kd_sound_helper); | |
1da177e4 LT |
264 | } |
265 | ||
8d06afab | 266 | static DEFINE_TIMER(kd_mksound_timer, kd_nosound, 0, 0); |
1da177e4 LT |
267 | |
268 | void kd_mksound(unsigned int hz, unsigned int ticks) | |
269 | { | |
66d2a595 | 270 | del_timer_sync(&kd_mksound_timer); |
1da177e4 | 271 | |
66d2a595 | 272 | input_handler_for_each_handle(&kbd_handler, &hz, kd_sound_helper); |
1da177e4 | 273 | |
66d2a595 DT |
274 | if (hz && ticks) |
275 | mod_timer(&kd_mksound_timer, jiffies + ticks); | |
1da177e4 | 276 | } |
f7511d5f | 277 | EXPORT_SYMBOL(kd_mksound); |
1da177e4 LT |
278 | |
279 | /* | |
280 | * Setting the keyboard rate. | |
281 | */ | |
282 | ||
66d2a595 | 283 | static int kbd_rate_helper(struct input_handle *handle, void *data) |
1da177e4 | 284 | { |
66d2a595 DT |
285 | struct input_dev *dev = handle->dev; |
286 | struct kbd_repeat *rep = data; | |
287 | ||
288 | if (test_bit(EV_REP, dev->evbit)) { | |
289 | ||
290 | if (rep[0].delay > 0) | |
291 | input_inject_event(handle, | |
292 | EV_REP, REP_DELAY, rep[0].delay); | |
293 | if (rep[0].period > 0) | |
294 | input_inject_event(handle, | |
295 | EV_REP, REP_PERIOD, rep[0].period); | |
296 | ||
297 | rep[1].delay = dev->rep[REP_DELAY]; | |
298 | rep[1].period = dev->rep[REP_PERIOD]; | |
1da177e4 | 299 | } |
66d2a595 DT |
300 | |
301 | return 0; | |
302 | } | |
303 | ||
304 | int kbd_rate(struct kbd_repeat *rep) | |
305 | { | |
306 | struct kbd_repeat data[2] = { *rep }; | |
307 | ||
308 | input_handler_for_each_handle(&kbd_handler, data, kbd_rate_helper); | |
309 | *rep = data[1]; /* Copy currently used settings */ | |
310 | ||
1da177e4 LT |
311 | return 0; |
312 | } | |
313 | ||
314 | /* | |
315 | * Helper Functions. | |
316 | */ | |
317 | static void put_queue(struct vc_data *vc, int ch) | |
318 | { | |
8ce73264 | 319 | struct tty_struct *tty = vc->port.tty; |
1da177e4 LT |
320 | |
321 | if (tty) { | |
322 | tty_insert_flip_char(tty, ch, 0); | |
323 | con_schedule_flip(tty); | |
324 | } | |
325 | } | |
326 | ||
327 | static void puts_queue(struct vc_data *vc, char *cp) | |
328 | { | |
8ce73264 | 329 | struct tty_struct *tty = vc->port.tty; |
1da177e4 LT |
330 | |
331 | if (!tty) | |
332 | return; | |
333 | ||
334 | while (*cp) { | |
335 | tty_insert_flip_char(tty, *cp, 0); | |
336 | cp++; | |
337 | } | |
338 | con_schedule_flip(tty); | |
339 | } | |
340 | ||
341 | static void applkey(struct vc_data *vc, int key, char mode) | |
342 | { | |
343 | static char buf[] = { 0x1b, 'O', 0x00, 0x00 }; | |
344 | ||
345 | buf[1] = (mode ? 'O' : '['); | |
346 | buf[2] = key; | |
347 | puts_queue(vc, buf); | |
348 | } | |
349 | ||
350 | /* | |
351 | * Many other routines do put_queue, but I think either | |
352 | * they produce ASCII, or they produce some user-assigned | |
353 | * string, and in both cases we might assume that it is | |
759448f4 | 354 | * in utf-8 already. |
1da177e4 | 355 | */ |
759448f4 | 356 | static void to_utf8(struct vc_data *vc, uint c) |
1da177e4 LT |
357 | { |
358 | if (c < 0x80) | |
359 | /* 0******* */ | |
360 | put_queue(vc, c); | |
fe1e8604 | 361 | else if (c < 0x800) { |
1da177e4 | 362 | /* 110***** 10****** */ |
fe1e8604 | 363 | put_queue(vc, 0xc0 | (c >> 6)); |
1da177e4 | 364 | put_queue(vc, 0x80 | (c & 0x3f)); |
e0785572 DT |
365 | } else if (c < 0x10000) { |
366 | if (c >= 0xD800 && c < 0xE000) | |
759448f4 JE |
367 | return; |
368 | if (c == 0xFFFF) | |
369 | return; | |
1da177e4 LT |
370 | /* 1110**** 10****** 10****** */ |
371 | put_queue(vc, 0xe0 | (c >> 12)); | |
372 | put_queue(vc, 0x80 | ((c >> 6) & 0x3f)); | |
373 | put_queue(vc, 0x80 | (c & 0x3f)); | |
e0785572 | 374 | } else if (c < 0x110000) { |
759448f4 JE |
375 | /* 11110*** 10****** 10****** 10****** */ |
376 | put_queue(vc, 0xf0 | (c >> 18)); | |
377 | put_queue(vc, 0x80 | ((c >> 12) & 0x3f)); | |
378 | put_queue(vc, 0x80 | ((c >> 6) & 0x3f)); | |
379 | put_queue(vc, 0x80 | (c & 0x3f)); | |
fe1e8604 | 380 | } |
1da177e4 LT |
381 | } |
382 | ||
fe1e8604 | 383 | /* |
1da177e4 LT |
384 | * Called after returning from RAW mode or when changing consoles - recompute |
385 | * shift_down[] and shift_state from key_down[] maybe called when keymap is | |
386 | * undefined, so that shiftkey release is seen | |
387 | */ | |
388 | void compute_shiftstate(void) | |
389 | { | |
390 | unsigned int i, j, k, sym, val; | |
391 | ||
392 | shift_state = 0; | |
393 | memset(shift_down, 0, sizeof(shift_down)); | |
fe1e8604 | 394 | |
1da177e4 LT |
395 | for (i = 0; i < ARRAY_SIZE(key_down); i++) { |
396 | ||
397 | if (!key_down[i]) | |
398 | continue; | |
399 | ||
400 | k = i * BITS_PER_LONG; | |
401 | ||
402 | for (j = 0; j < BITS_PER_LONG; j++, k++) { | |
403 | ||
404 | if (!test_bit(k, key_down)) | |
405 | continue; | |
406 | ||
407 | sym = U(key_maps[0][k]); | |
408 | if (KTYP(sym) != KT_SHIFT && KTYP(sym) != KT_SLOCK) | |
409 | continue; | |
410 | ||
411 | val = KVAL(sym); | |
412 | if (val == KVAL(K_CAPSSHIFT)) | |
413 | val = KVAL(K_SHIFT); | |
414 | ||
415 | shift_down[val]++; | |
416 | shift_state |= (1 << val); | |
417 | } | |
418 | } | |
419 | } | |
420 | ||
421 | /* | |
422 | * We have a combining character DIACR here, followed by the character CH. | |
423 | * If the combination occurs in the table, return the corresponding value. | |
424 | * Otherwise, if CH is a space or equals DIACR, return DIACR. | |
425 | * Otherwise, conclude that DIACR was not combining after all, | |
426 | * queue it and return CH. | |
427 | */ | |
b9ec4e10 | 428 | static unsigned int handle_diacr(struct vc_data *vc, unsigned int ch) |
1da177e4 | 429 | { |
b9ec4e10 | 430 | unsigned int d = diacr; |
1da177e4 LT |
431 | unsigned int i; |
432 | ||
433 | diacr = 0; | |
434 | ||
b9ec4e10 ST |
435 | if ((d & ~0xff) == BRL_UC_ROW) { |
436 | if ((ch & ~0xff) == BRL_UC_ROW) | |
437 | return d | ch; | |
438 | } else { | |
439 | for (i = 0; i < accent_table_size; i++) | |
440 | if (accent_table[i].diacr == d && accent_table[i].base == ch) | |
441 | return accent_table[i].result; | |
1da177e4 LT |
442 | } |
443 | ||
b9ec4e10 | 444 | if (ch == ' ' || ch == (BRL_UC_ROW|0) || ch == d) |
1da177e4 LT |
445 | return d; |
446 | ||
b9ec4e10 | 447 | if (kbd->kbdmode == VC_UNICODE) |
04c71976 ST |
448 | to_utf8(vc, d); |
449 | else { | |
450 | int c = conv_uni_to_8bit(d); | |
451 | if (c != -1) | |
452 | put_queue(vc, c); | |
453 | } | |
b9ec4e10 | 454 | |
1da177e4 LT |
455 | return ch; |
456 | } | |
457 | ||
458 | /* | |
459 | * Special function handlers | |
460 | */ | |
7d12e780 | 461 | static void fn_enter(struct vc_data *vc) |
1da177e4 LT |
462 | { |
463 | if (diacr) { | |
b9ec4e10 | 464 | if (kbd->kbdmode == VC_UNICODE) |
04c71976 ST |
465 | to_utf8(vc, diacr); |
466 | else { | |
467 | int c = conv_uni_to_8bit(diacr); | |
468 | if (c != -1) | |
469 | put_queue(vc, c); | |
470 | } | |
1da177e4 LT |
471 | diacr = 0; |
472 | } | |
e0785572 | 473 | |
1da177e4 LT |
474 | put_queue(vc, 13); |
475 | if (vc_kbd_mode(kbd, VC_CRLF)) | |
476 | put_queue(vc, 10); | |
477 | } | |
478 | ||
7d12e780 | 479 | static void fn_caps_toggle(struct vc_data *vc) |
1da177e4 LT |
480 | { |
481 | if (rep) | |
482 | return; | |
e0785572 | 483 | |
1da177e4 LT |
484 | chg_vc_kbd_led(kbd, VC_CAPSLOCK); |
485 | } | |
486 | ||
7d12e780 | 487 | static void fn_caps_on(struct vc_data *vc) |
1da177e4 LT |
488 | { |
489 | if (rep) | |
490 | return; | |
e0785572 | 491 | |
1da177e4 LT |
492 | set_vc_kbd_led(kbd, VC_CAPSLOCK); |
493 | } | |
494 | ||
7d12e780 | 495 | static void fn_show_ptregs(struct vc_data *vc) |
1da177e4 | 496 | { |
7d12e780 | 497 | struct pt_regs *regs = get_irq_regs(); |
e0785572 | 498 | |
1da177e4 LT |
499 | if (regs) |
500 | show_regs(regs); | |
501 | } | |
502 | ||
7d12e780 | 503 | static void fn_hold(struct vc_data *vc) |
1da177e4 | 504 | { |
8ce73264 | 505 | struct tty_struct *tty = vc->port.tty; |
1da177e4 LT |
506 | |
507 | if (rep || !tty) | |
508 | return; | |
509 | ||
510 | /* | |
511 | * Note: SCROLLOCK will be set (cleared) by stop_tty (start_tty); | |
512 | * these routines are also activated by ^S/^Q. | |
513 | * (And SCROLLOCK can also be set by the ioctl KDSKBLED.) | |
514 | */ | |
515 | if (tty->stopped) | |
516 | start_tty(tty); | |
517 | else | |
518 | stop_tty(tty); | |
519 | } | |
520 | ||
7d12e780 | 521 | static void fn_num(struct vc_data *vc) |
1da177e4 | 522 | { |
e0785572 | 523 | if (vc_kbd_mode(kbd, VC_APPLIC)) |
1da177e4 LT |
524 | applkey(vc, 'P', 1); |
525 | else | |
7d12e780 | 526 | fn_bare_num(vc); |
1da177e4 LT |
527 | } |
528 | ||
529 | /* | |
530 | * Bind this to Shift-NumLock if you work in application keypad mode | |
531 | * but want to be able to change the NumLock flag. | |
532 | * Bind this to NumLock if you prefer that the NumLock key always | |
533 | * changes the NumLock flag. | |
534 | */ | |
7d12e780 | 535 | static void fn_bare_num(struct vc_data *vc) |
1da177e4 LT |
536 | { |
537 | if (!rep) | |
538 | chg_vc_kbd_led(kbd, VC_NUMLOCK); | |
539 | } | |
540 | ||
7d12e780 | 541 | static void fn_lastcons(struct vc_data *vc) |
1da177e4 LT |
542 | { |
543 | /* switch to the last used console, ChN */ | |
544 | set_console(last_console); | |
545 | } | |
546 | ||
7d12e780 | 547 | static void fn_dec_console(struct vc_data *vc) |
1da177e4 LT |
548 | { |
549 | int i, cur = fg_console; | |
550 | ||
551 | /* Currently switching? Queue this next switch relative to that. */ | |
552 | if (want_console != -1) | |
553 | cur = want_console; | |
554 | ||
fe1e8604 | 555 | for (i = cur - 1; i != cur; i--) { |
1da177e4 | 556 | if (i == -1) |
fe1e8604 | 557 | i = MAX_NR_CONSOLES - 1; |
1da177e4 LT |
558 | if (vc_cons_allocated(i)) |
559 | break; | |
560 | } | |
561 | set_console(i); | |
562 | } | |
563 | ||
7d12e780 | 564 | static void fn_inc_console(struct vc_data *vc) |
1da177e4 LT |
565 | { |
566 | int i, cur = fg_console; | |
567 | ||
568 | /* Currently switching? Queue this next switch relative to that. */ | |
569 | if (want_console != -1) | |
570 | cur = want_console; | |
571 | ||
572 | for (i = cur+1; i != cur; i++) { | |
573 | if (i == MAX_NR_CONSOLES) | |
574 | i = 0; | |
575 | if (vc_cons_allocated(i)) | |
576 | break; | |
577 | } | |
578 | set_console(i); | |
579 | } | |
580 | ||
7d12e780 | 581 | static void fn_send_intr(struct vc_data *vc) |
1da177e4 | 582 | { |
8ce73264 | 583 | struct tty_struct *tty = vc->port.tty; |
1da177e4 LT |
584 | |
585 | if (!tty) | |
586 | return; | |
587 | tty_insert_flip_char(tty, 0, TTY_BREAK); | |
588 | con_schedule_flip(tty); | |
589 | } | |
590 | ||
7d12e780 | 591 | static void fn_scroll_forw(struct vc_data *vc) |
1da177e4 LT |
592 | { |
593 | scrollfront(vc, 0); | |
594 | } | |
595 | ||
7d12e780 | 596 | static void fn_scroll_back(struct vc_data *vc) |
1da177e4 LT |
597 | { |
598 | scrollback(vc, 0); | |
599 | } | |
600 | ||
7d12e780 | 601 | static void fn_show_mem(struct vc_data *vc) |
1da177e4 LT |
602 | { |
603 | show_mem(); | |
604 | } | |
605 | ||
7d12e780 | 606 | static void fn_show_state(struct vc_data *vc) |
1da177e4 LT |
607 | { |
608 | show_state(); | |
609 | } | |
610 | ||
7d12e780 | 611 | static void fn_boot_it(struct vc_data *vc) |
1da177e4 LT |
612 | { |
613 | ctrl_alt_del(); | |
614 | } | |
615 | ||
7d12e780 | 616 | static void fn_compose(struct vc_data *vc) |
1da177e4 | 617 | { |
e0785572 | 618 | dead_key_next = true; |
1da177e4 LT |
619 | } |
620 | ||
7d12e780 | 621 | static void fn_spawn_con(struct vc_data *vc) |
1da177e4 | 622 | { |
81af8d67 EB |
623 | spin_lock(&vt_spawn_con.lock); |
624 | if (vt_spawn_con.pid) | |
625 | if (kill_pid(vt_spawn_con.pid, vt_spawn_con.sig, 1)) { | |
626 | put_pid(vt_spawn_con.pid); | |
627 | vt_spawn_con.pid = NULL; | |
628 | } | |
629 | spin_unlock(&vt_spawn_con.lock); | |
1da177e4 LT |
630 | } |
631 | ||
7d12e780 | 632 | static void fn_SAK(struct vc_data *vc) |
1da177e4 | 633 | { |
8b6312f4 | 634 | struct work_struct *SAK_work = &vc_cons[fg_console].SAK_work; |
8b6312f4 | 635 | schedule_work(SAK_work); |
1da177e4 LT |
636 | } |
637 | ||
7d12e780 | 638 | static void fn_null(struct vc_data *vc) |
1da177e4 LT |
639 | { |
640 | compute_shiftstate(); | |
641 | } | |
642 | ||
643 | /* | |
644 | * Special key handlers | |
645 | */ | |
7d12e780 | 646 | static void k_ignore(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
647 | { |
648 | } | |
649 | ||
7d12e780 | 650 | static void k_spec(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
651 | { |
652 | if (up_flag) | |
653 | return; | |
654 | if (value >= ARRAY_SIZE(fn_handler)) | |
655 | return; | |
fe1e8604 DT |
656 | if ((kbd->kbdmode == VC_RAW || |
657 | kbd->kbdmode == VC_MEDIUMRAW) && | |
1da177e4 LT |
658 | value != KVAL(K_SAK)) |
659 | return; /* SAK is allowed even in raw mode */ | |
7d12e780 | 660 | fn_handler[value](vc); |
1da177e4 LT |
661 | } |
662 | ||
7d12e780 | 663 | static void k_lowercase(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 664 | { |
9272e9a2 | 665 | pr_err("k_lowercase was called - impossible\n"); |
1da177e4 LT |
666 | } |
667 | ||
7d12e780 | 668 | static void k_unicode(struct vc_data *vc, unsigned int value, char up_flag) |
1da177e4 LT |
669 | { |
670 | if (up_flag) | |
671 | return; /* no action, if this is a key release */ | |
672 | ||
673 | if (diacr) | |
674 | value = handle_diacr(vc, value); | |
675 | ||
676 | if (dead_key_next) { | |
e0785572 | 677 | dead_key_next = false; |
1da177e4 LT |
678 | diacr = value; |
679 | return; | |
680 | } | |
b9ec4e10 | 681 | if (kbd->kbdmode == VC_UNICODE) |
04c71976 ST |
682 | to_utf8(vc, value); |
683 | else { | |
684 | int c = conv_uni_to_8bit(value); | |
685 | if (c != -1) | |
686 | put_queue(vc, c); | |
687 | } | |
1da177e4 LT |
688 | } |
689 | ||
690 | /* | |
691 | * Handle dead key. Note that we now may have several | |
692 | * dead keys modifying the same character. Very useful | |
693 | * for Vietnamese. | |
694 | */ | |
7d12e780 | 695 | static void k_deadunicode(struct vc_data *vc, unsigned int value, char up_flag) |
1da177e4 LT |
696 | { |
697 | if (up_flag) | |
698 | return; | |
e0785572 | 699 | |
1da177e4 LT |
700 | diacr = (diacr ? handle_diacr(vc, value) : value); |
701 | } | |
702 | ||
7d12e780 | 703 | static void k_self(struct vc_data *vc, unsigned char value, char up_flag) |
b9ec4e10 | 704 | { |
d2187ebd | 705 | k_unicode(vc, conv_8bit_to_uni(value), up_flag); |
b9ec4e10 ST |
706 | } |
707 | ||
7d12e780 | 708 | static void k_dead2(struct vc_data *vc, unsigned char value, char up_flag) |
b9ec4e10 | 709 | { |
7d12e780 | 710 | k_deadunicode(vc, value, up_flag); |
b9ec4e10 ST |
711 | } |
712 | ||
1da177e4 LT |
713 | /* |
714 | * Obsolete - for backwards compatibility only | |
715 | */ | |
7d12e780 | 716 | static void k_dead(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 717 | { |
0f5e560e | 718 | static const unsigned char ret_diacr[NR_DEAD] = {'`', '\'', '^', '~', '"', ',' }; |
e0785572 DT |
719 | |
720 | k_deadunicode(vc, ret_diacr[value], up_flag); | |
1da177e4 LT |
721 | } |
722 | ||
7d12e780 | 723 | static void k_cons(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
724 | { |
725 | if (up_flag) | |
726 | return; | |
e0785572 | 727 | |
1da177e4 LT |
728 | set_console(value); |
729 | } | |
730 | ||
7d12e780 | 731 | static void k_fn(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 732 | { |
1da177e4 LT |
733 | if (up_flag) |
734 | return; | |
e0785572 DT |
735 | |
736 | if ((unsigned)value < ARRAY_SIZE(func_table)) { | |
1da177e4 LT |
737 | if (func_table[value]) |
738 | puts_queue(vc, func_table[value]); | |
739 | } else | |
9272e9a2 | 740 | pr_err("k_fn called with value=%d\n", value); |
1da177e4 LT |
741 | } |
742 | ||
7d12e780 | 743 | static void k_cur(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 744 | { |
e52b29c2 | 745 | static const char cur_chars[] = "BDCA"; |
1da177e4 LT |
746 | |
747 | if (up_flag) | |
748 | return; | |
e0785572 | 749 | |
1da177e4 LT |
750 | applkey(vc, cur_chars[value], vc_kbd_mode(kbd, VC_CKMODE)); |
751 | } | |
752 | ||
7d12e780 | 753 | static void k_pad(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 754 | { |
0f5e560e AM |
755 | static const char pad_chars[] = "0123456789+-*/\015,.?()#"; |
756 | static const char app_map[] = "pqrstuvwxylSRQMnnmPQS"; | |
1da177e4 LT |
757 | |
758 | if (up_flag) | |
759 | return; /* no action, if this is a key release */ | |
760 | ||
761 | /* kludge... shift forces cursor/number keys */ | |
762 | if (vc_kbd_mode(kbd, VC_APPLIC) && !shift_down[KG_SHIFT]) { | |
763 | applkey(vc, app_map[value], 1); | |
764 | return; | |
765 | } | |
766 | ||
e0785572 DT |
767 | if (!vc_kbd_led(kbd, VC_NUMLOCK)) { |
768 | ||
1da177e4 | 769 | switch (value) { |
e0785572 DT |
770 | case KVAL(K_PCOMMA): |
771 | case KVAL(K_PDOT): | |
772 | k_fn(vc, KVAL(K_REMOVE), 0); | |
773 | return; | |
774 | case KVAL(K_P0): | |
775 | k_fn(vc, KVAL(K_INSERT), 0); | |
776 | return; | |
777 | case KVAL(K_P1): | |
778 | k_fn(vc, KVAL(K_SELECT), 0); | |
779 | return; | |
780 | case KVAL(K_P2): | |
781 | k_cur(vc, KVAL(K_DOWN), 0); | |
782 | return; | |
783 | case KVAL(K_P3): | |
784 | k_fn(vc, KVAL(K_PGDN), 0); | |
785 | return; | |
786 | case KVAL(K_P4): | |
787 | k_cur(vc, KVAL(K_LEFT), 0); | |
788 | return; | |
789 | case KVAL(K_P6): | |
790 | k_cur(vc, KVAL(K_RIGHT), 0); | |
791 | return; | |
792 | case KVAL(K_P7): | |
793 | k_fn(vc, KVAL(K_FIND), 0); | |
794 | return; | |
795 | case KVAL(K_P8): | |
796 | k_cur(vc, KVAL(K_UP), 0); | |
797 | return; | |
798 | case KVAL(K_P9): | |
799 | k_fn(vc, KVAL(K_PGUP), 0); | |
800 | return; | |
801 | case KVAL(K_P5): | |
802 | applkey(vc, 'G', vc_kbd_mode(kbd, VC_APPLIC)); | |
803 | return; | |
1da177e4 | 804 | } |
e0785572 | 805 | } |
1da177e4 LT |
806 | |
807 | put_queue(vc, pad_chars[value]); | |
808 | if (value == KVAL(K_PENTER) && vc_kbd_mode(kbd, VC_CRLF)) | |
809 | put_queue(vc, 10); | |
810 | } | |
811 | ||
7d12e780 | 812 | static void k_shift(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
813 | { |
814 | int old_state = shift_state; | |
815 | ||
816 | if (rep) | |
817 | return; | |
818 | /* | |
819 | * Mimic typewriter: | |
820 | * a CapsShift key acts like Shift but undoes CapsLock | |
821 | */ | |
822 | if (value == KVAL(K_CAPSSHIFT)) { | |
823 | value = KVAL(K_SHIFT); | |
824 | if (!up_flag) | |
825 | clr_vc_kbd_led(kbd, VC_CAPSLOCK); | |
826 | } | |
827 | ||
828 | if (up_flag) { | |
829 | /* | |
830 | * handle the case that two shift or control | |
831 | * keys are depressed simultaneously | |
832 | */ | |
833 | if (shift_down[value]) | |
834 | shift_down[value]--; | |
835 | } else | |
836 | shift_down[value]++; | |
837 | ||
838 | if (shift_down[value]) | |
839 | shift_state |= (1 << value); | |
840 | else | |
841 | shift_state &= ~(1 << value); | |
842 | ||
843 | /* kludge */ | |
844 | if (up_flag && shift_state != old_state && npadch != -1) { | |
845 | if (kbd->kbdmode == VC_UNICODE) | |
759448f4 | 846 | to_utf8(vc, npadch); |
1da177e4 LT |
847 | else |
848 | put_queue(vc, npadch & 0xff); | |
849 | npadch = -1; | |
850 | } | |
851 | } | |
852 | ||
7d12e780 | 853 | static void k_meta(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
854 | { |
855 | if (up_flag) | |
856 | return; | |
857 | ||
858 | if (vc_kbd_mode(kbd, VC_META)) { | |
859 | put_queue(vc, '\033'); | |
860 | put_queue(vc, value); | |
861 | } else | |
862 | put_queue(vc, value | 0x80); | |
863 | } | |
864 | ||
7d12e780 | 865 | static void k_ascii(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
866 | { |
867 | int base; | |
868 | ||
869 | if (up_flag) | |
870 | return; | |
871 | ||
872 | if (value < 10) { | |
873 | /* decimal input of code, while Alt depressed */ | |
874 | base = 10; | |
875 | } else { | |
876 | /* hexadecimal input of code, while AltGr depressed */ | |
877 | value -= 10; | |
878 | base = 16; | |
879 | } | |
880 | ||
881 | if (npadch == -1) | |
882 | npadch = value; | |
883 | else | |
884 | npadch = npadch * base + value; | |
885 | } | |
886 | ||
7d12e780 | 887 | static void k_lock(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
888 | { |
889 | if (up_flag || rep) | |
890 | return; | |
e0785572 | 891 | |
1da177e4 LT |
892 | chg_vc_kbd_lock(kbd, value); |
893 | } | |
894 | ||
7d12e780 | 895 | static void k_slock(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 896 | { |
7d12e780 | 897 | k_shift(vc, value, up_flag); |
1da177e4 LT |
898 | if (up_flag || rep) |
899 | return; | |
e0785572 | 900 | |
1da177e4 LT |
901 | chg_vc_kbd_slock(kbd, value); |
902 | /* try to make Alt, oops, AltGr and such work */ | |
903 | if (!key_maps[kbd->lockstate ^ kbd->slockstate]) { | |
904 | kbd->slockstate = 0; | |
905 | chg_vc_kbd_slock(kbd, value); | |
906 | } | |
907 | } | |
908 | ||
b9ec4e10 | 909 | /* by default, 300ms interval for combination release */ |
77426d72 ST |
910 | static unsigned brl_timeout = 300; |
911 | MODULE_PARM_DESC(brl_timeout, "Braille keys release delay in ms (0 for commit on first key release)"); | |
912 | module_param(brl_timeout, uint, 0644); | |
913 | ||
914 | static unsigned brl_nbchords = 1; | |
915 | MODULE_PARM_DESC(brl_nbchords, "Number of chords that produce a braille pattern (0 for dead chords)"); | |
916 | module_param(brl_nbchords, uint, 0644); | |
917 | ||
7d12e780 | 918 | static void k_brlcommit(struct vc_data *vc, unsigned int pattern, char up_flag) |
77426d72 ST |
919 | { |
920 | static unsigned long chords; | |
921 | static unsigned committed; | |
922 | ||
923 | if (!brl_nbchords) | |
7d12e780 | 924 | k_deadunicode(vc, BRL_UC_ROW | pattern, up_flag); |
77426d72 ST |
925 | else { |
926 | committed |= pattern; | |
927 | chords++; | |
928 | if (chords == brl_nbchords) { | |
7d12e780 | 929 | k_unicode(vc, BRL_UC_ROW | committed, up_flag); |
77426d72 ST |
930 | chords = 0; |
931 | committed = 0; | |
932 | } | |
933 | } | |
934 | } | |
935 | ||
7d12e780 | 936 | static void k_brl(struct vc_data *vc, unsigned char value, char up_flag) |
b9ec4e10 | 937 | { |
e0785572 | 938 | static unsigned pressed, committing; |
b9ec4e10 ST |
939 | static unsigned long releasestart; |
940 | ||
941 | if (kbd->kbdmode != VC_UNICODE) { | |
942 | if (!up_flag) | |
9272e9a2 | 943 | pr_warning("keyboard mode must be unicode for braille patterns\n"); |
b9ec4e10 ST |
944 | return; |
945 | } | |
946 | ||
947 | if (!value) { | |
7d12e780 | 948 | k_unicode(vc, BRL_UC_ROW, up_flag); |
b9ec4e10 ST |
949 | return; |
950 | } | |
951 | ||
952 | if (value > 8) | |
953 | return; | |
954 | ||
e0785572 | 955 | if (!up_flag) { |
b9ec4e10 ST |
956 | pressed |= 1 << (value - 1); |
957 | if (!brl_timeout) | |
958 | committing = pressed; | |
e0785572 DT |
959 | } else if (brl_timeout) { |
960 | if (!committing || | |
961 | time_after(jiffies, | |
962 | releasestart + msecs_to_jiffies(brl_timeout))) { | |
963 | committing = pressed; | |
964 | releasestart = jiffies; | |
965 | } | |
966 | pressed &= ~(1 << (value - 1)); | |
967 | if (!pressed && committing) { | |
968 | k_brlcommit(vc, committing, 0); | |
969 | committing = 0; | |
970 | } | |
971 | } else { | |
972 | if (committing) { | |
973 | k_brlcommit(vc, committing, 0); | |
974 | committing = 0; | |
975 | } | |
976 | pressed &= ~(1 << (value - 1)); | |
b9ec4e10 ST |
977 | } |
978 | } | |
979 | ||
1da177e4 LT |
980 | /* |
981 | * The leds display either (i) the status of NumLock, CapsLock, ScrollLock, | |
982 | * or (ii) whatever pattern of lights people want to show using KDSETLED, | |
983 | * or (iii) specified bits of specified words in kernel memory. | |
984 | */ | |
985 | unsigned char getledstate(void) | |
986 | { | |
987 | return ledstate; | |
988 | } | |
989 | ||
990 | void setledstate(struct kbd_struct *kbd, unsigned int led) | |
991 | { | |
992 | if (!(led & ~7)) { | |
993 | ledioctl = led; | |
994 | kbd->ledmode = LED_SHOW_IOCTL; | |
995 | } else | |
996 | kbd->ledmode = LED_SHOW_FLAGS; | |
e0785572 | 997 | |
1da177e4 LT |
998 | set_leds(); |
999 | } | |
1000 | ||
1001 | static inline unsigned char getleds(void) | |
1002 | { | |
1003 | struct kbd_struct *kbd = kbd_table + fg_console; | |
1004 | unsigned char leds; | |
1005 | int i; | |
1006 | ||
1007 | if (kbd->ledmode == LED_SHOW_IOCTL) | |
1008 | return ledioctl; | |
1009 | ||
1010 | leds = kbd->ledflagstate; | |
1011 | ||
1012 | if (kbd->ledmode == LED_SHOW_MEM) { | |
1013 | for (i = 0; i < 3; i++) | |
1014 | if (ledptrs[i].valid) { | |
1015 | if (*ledptrs[i].addr & ledptrs[i].mask) | |
1016 | leds |= (1 << i); | |
1017 | else | |
1018 | leds &= ~(1 << i); | |
1019 | } | |
1020 | } | |
1021 | return leds; | |
1022 | } | |
1023 | ||
66d2a595 DT |
1024 | static int kbd_update_leds_helper(struct input_handle *handle, void *data) |
1025 | { | |
1026 | unsigned char leds = *(unsigned char *)data; | |
1027 | ||
1028 | if (test_bit(EV_LED, handle->dev->evbit)) { | |
1029 | input_inject_event(handle, EV_LED, LED_SCROLLL, !!(leds & 0x01)); | |
1030 | input_inject_event(handle, EV_LED, LED_NUML, !!(leds & 0x02)); | |
1031 | input_inject_event(handle, EV_LED, LED_CAPSL, !!(leds & 0x04)); | |
1032 | input_inject_event(handle, EV_SYN, SYN_REPORT, 0); | |
1033 | } | |
1034 | ||
1035 | return 0; | |
1036 | } | |
1037 | ||
1da177e4 | 1038 | /* |
66d2a595 DT |
1039 | * This is the tasklet that updates LED state on all keyboards |
1040 | * attached to the box. The reason we use tasklet is that we | |
1041 | * need to handle the scenario when keyboard handler is not | |
1042 | * registered yet but we already getting updates form VT to | |
1043 | * update led state. | |
1da177e4 | 1044 | */ |
1da177e4 LT |
1045 | static void kbd_bh(unsigned long dummy) |
1046 | { | |
1da177e4 LT |
1047 | unsigned char leds = getleds(); |
1048 | ||
1049 | if (leds != ledstate) { | |
66d2a595 DT |
1050 | input_handler_for_each_handle(&kbd_handler, &leds, |
1051 | kbd_update_leds_helper); | |
1052 | ledstate = leds; | |
1da177e4 | 1053 | } |
1da177e4 LT |
1054 | } |
1055 | ||
1056 | DECLARE_TASKLET_DISABLED(keyboard_tasklet, kbd_bh, 0); | |
1057 | ||
1da177e4 | 1058 | #if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_ALPHA) ||\ |
0b57ee9e AB |
1059 | defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_SPARC) ||\ |
1060 | defined(CONFIG_PARISC) || defined(CONFIG_SUPERH) ||\ | |
3a4e832c HCE |
1061 | (defined(CONFIG_ARM) && defined(CONFIG_KEYBOARD_ATKBD) && !defined(CONFIG_ARCH_RPC)) ||\ |
1062 | defined(CONFIG_AVR32) | |
1da177e4 LT |
1063 | |
1064 | #define HW_RAW(dev) (test_bit(EV_MSC, dev->evbit) && test_bit(MSC_RAW, dev->mscbit) &&\ | |
1065 | ((dev)->id.bustype == BUS_I8042) && ((dev)->id.vendor == 0x0001) && ((dev)->id.product == 0x0001)) | |
1066 | ||
0f5e560e | 1067 | static const unsigned short x86_keycodes[256] = |
1da177e4 LT |
1068 | { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, |
1069 | 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, | |
1070 | 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, | |
1071 | 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, | |
1072 | 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, | |
1073 | 80, 81, 82, 83, 84,118, 86, 87, 88,115,120,119,121,112,123, 92, | |
896cdc7b | 1074 | 284,285,309, 0,312, 91,327,328,329,331,333,335,336,337,338,339, |
1da177e4 LT |
1075 | 367,288,302,304,350, 89,334,326,267,126,268,269,125,347,348,349, |
1076 | 360,261,262,263,268,376,100,101,321,316,373,286,289,102,351,355, | |
72a42f24 HG |
1077 | 103,104,105,275,287,279,258,106,274,107,294,364,358,363,362,361, |
1078 | 291,108,381,281,290,272,292,305,280, 99,112,257,306,359,113,114, | |
1da177e4 LT |
1079 | 264,117,271,374,379,265,266, 93, 94, 95, 85,259,375,260, 90,116, |
1080 | 377,109,111,277,278,282,283,295,296,297,299,300,301,293,303,307, | |
1081 | 308,310,313,314,315,317,318,319,320,357,322,323,324,325,276,330, | |
1082 | 332,340,365,342,343,344,345,346,356,270,341,368,369,370,371,372 }; | |
1083 | ||
0b57ee9e | 1084 | #ifdef CONFIG_SPARC |
e0785572 | 1085 | static int sparc_l1_a_state; |
1da177e4 LT |
1086 | extern void sun_do_break(void); |
1087 | #endif | |
1088 | ||
fe1e8604 | 1089 | static int emulate_raw(struct vc_data *vc, unsigned int keycode, |
1da177e4 LT |
1090 | unsigned char up_flag) |
1091 | { | |
896cdc7b | 1092 | int code; |
1da177e4 LT |
1093 | |
1094 | switch (keycode) { | |
896cdc7b | 1095 | |
e0785572 DT |
1096 | case KEY_PAUSE: |
1097 | put_queue(vc, 0xe1); | |
1098 | put_queue(vc, 0x1d | up_flag); | |
1099 | put_queue(vc, 0x45 | up_flag); | |
1100 | break; | |
896cdc7b | 1101 | |
e0785572 DT |
1102 | case KEY_HANGEUL: |
1103 | if (!up_flag) | |
1104 | put_queue(vc, 0xf2); | |
1105 | break; | |
1da177e4 | 1106 | |
e0785572 DT |
1107 | case KEY_HANJA: |
1108 | if (!up_flag) | |
1109 | put_queue(vc, 0xf1); | |
1110 | break; | |
896cdc7b | 1111 | |
e0785572 DT |
1112 | case KEY_SYSRQ: |
1113 | /* | |
1114 | * Real AT keyboards (that's what we're trying | |
1115 | * to emulate here emit 0xe0 0x2a 0xe0 0x37 when | |
1116 | * pressing PrtSc/SysRq alone, but simply 0x54 | |
1117 | * when pressing Alt+PrtSc/SysRq. | |
1118 | */ | |
1119 | if (test_bit(KEY_LEFTALT, key_down) || | |
1120 | test_bit(KEY_RIGHTALT, key_down)) { | |
1121 | put_queue(vc, 0x54 | up_flag); | |
1122 | } else { | |
1123 | put_queue(vc, 0xe0); | |
1124 | put_queue(vc, 0x2a | up_flag); | |
1125 | put_queue(vc, 0xe0); | |
1126 | put_queue(vc, 0x37 | up_flag); | |
1127 | } | |
1128 | break; | |
1da177e4 | 1129 | |
e0785572 DT |
1130 | default: |
1131 | if (keycode > 255) | |
1132 | return -1; | |
1da177e4 | 1133 | |
e0785572 DT |
1134 | code = x86_keycodes[keycode]; |
1135 | if (!code) | |
1136 | return -1; | |
1da177e4 | 1137 | |
e0785572 DT |
1138 | if (code & 0x100) |
1139 | put_queue(vc, 0xe0); | |
1140 | put_queue(vc, (code & 0x7f) | up_flag); | |
1141 | ||
1142 | break; | |
1da177e4 LT |
1143 | } |
1144 | ||
1145 | return 0; | |
1146 | } | |
1147 | ||
1148 | #else | |
1149 | ||
1150 | #define HW_RAW(dev) 0 | |
1151 | ||
1da177e4 LT |
1152 | static int emulate_raw(struct vc_data *vc, unsigned int keycode, unsigned char up_flag) |
1153 | { | |
1154 | if (keycode > 127) | |
1155 | return -1; | |
1156 | ||
1157 | put_queue(vc, keycode | up_flag); | |
1158 | return 0; | |
1159 | } | |
1160 | #endif | |
1161 | ||
1162 | static void kbd_rawcode(unsigned char data) | |
1163 | { | |
1164 | struct vc_data *vc = vc_cons[fg_console].d; | |
e0785572 | 1165 | |
0c09b2ac | 1166 | kbd = kbd_table + vc->vc_num; |
1da177e4 LT |
1167 | if (kbd->kbdmode == VC_RAW) |
1168 | put_queue(vc, data); | |
1169 | } | |
1170 | ||
7d12e780 | 1171 | static void kbd_keycode(unsigned int keycode, int down, int hw_raw) |
1da177e4 LT |
1172 | { |
1173 | struct vc_data *vc = vc_cons[fg_console].d; | |
1174 | unsigned short keysym, *key_map; | |
e0785572 DT |
1175 | unsigned char type; |
1176 | bool raw_mode; | |
1da177e4 LT |
1177 | struct tty_struct *tty; |
1178 | int shift_final; | |
41ab4396 | 1179 | struct keyboard_notifier_param param = { .vc = vc, .value = keycode, .down = down }; |
e0785572 | 1180 | int rc; |
1da177e4 | 1181 | |
8ce73264 | 1182 | tty = vc->port.tty; |
1da177e4 LT |
1183 | |
1184 | if (tty && (!tty->driver_data)) { | |
1185 | /* No driver data? Strange. Okay we fix it then. */ | |
1186 | tty->driver_data = vc; | |
1187 | } | |
1188 | ||
0c09b2ac | 1189 | kbd = kbd_table + vc->vc_num; |
1da177e4 | 1190 | |
0b57ee9e | 1191 | #ifdef CONFIG_SPARC |
1da177e4 LT |
1192 | if (keycode == KEY_STOP) |
1193 | sparc_l1_a_state = down; | |
1194 | #endif | |
1195 | ||
1196 | rep = (down == 2); | |
1197 | ||
e0785572 DT |
1198 | raw_mode = (kbd->kbdmode == VC_RAW); |
1199 | if (raw_mode && !hw_raw) | |
1da177e4 | 1200 | if (emulate_raw(vc, keycode, !down << 7)) |
9e35d206 | 1201 | if (keycode < BTN_MISC && printk_ratelimit()) |
9272e9a2 DT |
1202 | pr_warning("can't emulate rawmode for keycode %d\n", |
1203 | keycode); | |
1da177e4 | 1204 | |
0b57ee9e | 1205 | #ifdef CONFIG_SPARC |
1da177e4 | 1206 | if (keycode == KEY_A && sparc_l1_a_state) { |
e0785572 | 1207 | sparc_l1_a_state = false; |
1da177e4 LT |
1208 | sun_do_break(); |
1209 | } | |
1210 | #endif | |
1211 | ||
1212 | if (kbd->kbdmode == VC_MEDIUMRAW) { | |
1213 | /* | |
1214 | * This is extended medium raw mode, with keys above 127 | |
1215 | * encoded as 0, high 7 bits, low 7 bits, with the 0 bearing | |
1216 | * the 'up' flag if needed. 0 is reserved, so this shouldn't | |
1217 | * interfere with anything else. The two bytes after 0 will | |
1218 | * always have the up flag set not to interfere with older | |
1219 | * applications. This allows for 16384 different keycodes, | |
1220 | * which should be enough. | |
1221 | */ | |
1222 | if (keycode < 128) { | |
1223 | put_queue(vc, keycode | (!down << 7)); | |
1224 | } else { | |
1225 | put_queue(vc, !down << 7); | |
1226 | put_queue(vc, (keycode >> 7) | 0x80); | |
1227 | put_queue(vc, keycode | 0x80); | |
1228 | } | |
e0785572 | 1229 | raw_mode = true; |
1da177e4 LT |
1230 | } |
1231 | ||
1232 | if (down) | |
1233 | set_bit(keycode, key_down); | |
1234 | else | |
1235 | clear_bit(keycode, key_down); | |
1236 | ||
fe1e8604 DT |
1237 | if (rep && |
1238 | (!vc_kbd_mode(kbd, VC_REPEAT) || | |
f34d7a5b | 1239 | (tty && !L_ECHO(tty) && tty_chars_in_buffer(tty)))) { |
1da177e4 LT |
1240 | /* |
1241 | * Don't repeat a key if the input buffers are not empty and the | |
fe1e8604 | 1242 | * characters get aren't echoed locally. This makes key repeat |
1da177e4 LT |
1243 | * usable with slow applications and under heavy loads. |
1244 | */ | |
1245 | return; | |
1246 | } | |
1247 | ||
41ab4396 | 1248 | param.shift = shift_final = (shift_state | kbd->slockstate) ^ kbd->lockstate; |
0beb4f6f | 1249 | param.ledstate = kbd->ledflagstate; |
1da177e4 LT |
1250 | key_map = key_maps[shift_final]; |
1251 | ||
e0785572 DT |
1252 | rc = atomic_notifier_call_chain(&keyboard_notifier_list, |
1253 | KBD_KEYCODE, ¶m); | |
1254 | if (rc == NOTIFY_STOP || !key_map) { | |
1255 | atomic_notifier_call_chain(&keyboard_notifier_list, | |
1256 | KBD_UNBOUND_KEYCODE, ¶m); | |
1da177e4 LT |
1257 | compute_shiftstate(); |
1258 | kbd->slockstate = 0; | |
1259 | return; | |
1260 | } | |
1261 | ||
e0785572 | 1262 | if (keycode < NR_KEYS) |
b9ec4e10 | 1263 | keysym = key_map[keycode]; |
e0785572 DT |
1264 | else if (keycode >= KEY_BRL_DOT1 && keycode <= KEY_BRL_DOT8) |
1265 | keysym = U(K(KT_BRL, keycode - KEY_BRL_DOT1 + 1)); | |
1266 | else | |
1267 | return; | |
1da177e4 | 1268 | |
1da177e4 LT |
1269 | type = KTYP(keysym); |
1270 | ||
1271 | if (type < 0xf0) { | |
41ab4396 | 1272 | param.value = keysym; |
e0785572 DT |
1273 | rc = atomic_notifier_call_chain(&keyboard_notifier_list, |
1274 | KBD_UNICODE, ¶m); | |
1275 | if (rc != NOTIFY_STOP) | |
1276 | if (down && !raw_mode) | |
1277 | to_utf8(vc, keysym); | |
1da177e4 LT |
1278 | return; |
1279 | } | |
1280 | ||
1281 | type -= 0xf0; | |
1282 | ||
1da177e4 LT |
1283 | if (type == KT_LETTER) { |
1284 | type = KT_LATIN; | |
1285 | if (vc_kbd_led(kbd, VC_CAPSLOCK)) { | |
1286 | key_map = key_maps[shift_final ^ (1 << KG_SHIFT)]; | |
1287 | if (key_map) | |
1288 | keysym = key_map[keycode]; | |
1289 | } | |
1290 | } | |
41ab4396 | 1291 | |
e0785572 DT |
1292 | param.value = keysym; |
1293 | rc = atomic_notifier_call_chain(&keyboard_notifier_list, | |
1294 | KBD_KEYSYM, ¶m); | |
1295 | if (rc == NOTIFY_STOP) | |
41ab4396 ST |
1296 | return; |
1297 | ||
1298 | if (raw_mode && type != KT_SPEC && type != KT_SHIFT) | |
1299 | return; | |
1da177e4 | 1300 | |
7d12e780 | 1301 | (*k_handler[type])(vc, keysym & 0xff, !down); |
1da177e4 | 1302 | |
0beb4f6f | 1303 | param.ledstate = kbd->ledflagstate; |
41ab4396 ST |
1304 | atomic_notifier_call_chain(&keyboard_notifier_list, KBD_POST_KEYSYM, ¶m); |
1305 | ||
1da177e4 LT |
1306 | if (type != KT_SLOCK) |
1307 | kbd->slockstate = 0; | |
1308 | } | |
1309 | ||
fe1e8604 | 1310 | static void kbd_event(struct input_handle *handle, unsigned int event_type, |
1da177e4 LT |
1311 | unsigned int event_code, int value) |
1312 | { | |
21cea58e DT |
1313 | /* We are called with interrupts disabled, just take the lock */ |
1314 | spin_lock(&kbd_event_lock); | |
1315 | ||
1da177e4 LT |
1316 | if (event_type == EV_MSC && event_code == MSC_RAW && HW_RAW(handle->dev)) |
1317 | kbd_rawcode(value); | |
1318 | if (event_type == EV_KEY) | |
7d12e780 | 1319 | kbd_keycode(event_code, value, HW_RAW(handle->dev)); |
21cea58e DT |
1320 | |
1321 | spin_unlock(&kbd_event_lock); | |
1322 | ||
1da177e4 LT |
1323 | tasklet_schedule(&keyboard_tasklet); |
1324 | do_poke_blanked_console = 1; | |
1325 | schedule_console_callback(); | |
1326 | } | |
1327 | ||
0b7024ac DT |
1328 | static bool kbd_match(struct input_handler *handler, struct input_dev *dev) |
1329 | { | |
1330 | int i; | |
1331 | ||
1332 | if (test_bit(EV_SND, dev->evbit)) | |
1333 | return true; | |
1334 | ||
53c1f764 | 1335 | if (test_bit(EV_KEY, dev->evbit)) { |
0b7024ac DT |
1336 | for (i = KEY_RESERVED; i < BTN_MISC; i++) |
1337 | if (test_bit(i, dev->keybit)) | |
1338 | return true; | |
53c1f764 ST |
1339 | for (i = KEY_BRL_DOT1; i <= KEY_BRL_DOT10; i++) |
1340 | if (test_bit(i, dev->keybit)) | |
1341 | return true; | |
1342 | } | |
0b7024ac DT |
1343 | |
1344 | return false; | |
1345 | } | |
1346 | ||
1da177e4 LT |
1347 | /* |
1348 | * When a keyboard (or other input device) is found, the kbd_connect | |
1349 | * function is called. The function then looks at the device, and if it | |
1350 | * likes it, it can open it and get events from it. In this (kbd_connect) | |
1351 | * function, we should decide which VT to bind that keyboard to initially. | |
1352 | */ | |
5b2a0826 DT |
1353 | static int kbd_connect(struct input_handler *handler, struct input_dev *dev, |
1354 | const struct input_device_id *id) | |
1da177e4 LT |
1355 | { |
1356 | struct input_handle *handle; | |
5b2a0826 | 1357 | int error; |
1da177e4 | 1358 | |
22479e1c DT |
1359 | handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL); |
1360 | if (!handle) | |
5b2a0826 | 1361 | return -ENOMEM; |
1da177e4 LT |
1362 | |
1363 | handle->dev = dev; | |
1364 | handle->handler = handler; | |
fe1e8604 | 1365 | handle->name = "kbd"; |
1da177e4 | 1366 | |
5b2a0826 DT |
1367 | error = input_register_handle(handle); |
1368 | if (error) | |
1369 | goto err_free_handle; | |
1da177e4 | 1370 | |
5b2a0826 DT |
1371 | error = input_open_device(handle); |
1372 | if (error) | |
1373 | goto err_unregister_handle; | |
1374 | ||
1375 | return 0; | |
1376 | ||
1377 | err_unregister_handle: | |
1378 | input_unregister_handle(handle); | |
1379 | err_free_handle: | |
1380 | kfree(handle); | |
1381 | return error; | |
1da177e4 LT |
1382 | } |
1383 | ||
1384 | static void kbd_disconnect(struct input_handle *handle) | |
1385 | { | |
1386 | input_close_device(handle); | |
5b2a0826 | 1387 | input_unregister_handle(handle); |
1da177e4 LT |
1388 | kfree(handle); |
1389 | } | |
1390 | ||
c7e8dc6e DT |
1391 | /* |
1392 | * Start keyboard handler on the new keyboard by refreshing LED state to | |
1393 | * match the rest of the system. | |
1394 | */ | |
1395 | static void kbd_start(struct input_handle *handle) | |
1396 | { | |
c7e8dc6e | 1397 | tasklet_disable(&keyboard_tasklet); |
66d2a595 DT |
1398 | |
1399 | if (ledstate != 0xff) | |
1400 | kbd_update_leds_helper(handle, &ledstate); | |
1401 | ||
c7e8dc6e DT |
1402 | tasklet_enable(&keyboard_tasklet); |
1403 | } | |
1404 | ||
66e66118 | 1405 | static const struct input_device_id kbd_ids[] = { |
1da177e4 LT |
1406 | { |
1407 | .flags = INPUT_DEVICE_ID_MATCH_EVBIT, | |
7b19ada2 | 1408 | .evbit = { BIT_MASK(EV_KEY) }, |
1da177e4 | 1409 | }, |
fe1e8604 | 1410 | |
1da177e4 LT |
1411 | { |
1412 | .flags = INPUT_DEVICE_ID_MATCH_EVBIT, | |
7b19ada2 | 1413 | .evbit = { BIT_MASK(EV_SND) }, |
fe1e8604 | 1414 | }, |
1da177e4 LT |
1415 | |
1416 | { }, /* Terminating entry */ | |
1417 | }; | |
1418 | ||
1419 | MODULE_DEVICE_TABLE(input, kbd_ids); | |
1420 | ||
1421 | static struct input_handler kbd_handler = { | |
1422 | .event = kbd_event, | |
0b7024ac | 1423 | .match = kbd_match, |
1da177e4 LT |
1424 | .connect = kbd_connect, |
1425 | .disconnect = kbd_disconnect, | |
c7e8dc6e | 1426 | .start = kbd_start, |
1da177e4 LT |
1427 | .name = "kbd", |
1428 | .id_table = kbd_ids, | |
1429 | }; | |
1430 | ||
1431 | int __init kbd_init(void) | |
1432 | { | |
1433 | int i; | |
4263cf0f | 1434 | int error; |
1da177e4 | 1435 | |
2b192908 DT |
1436 | for (i = 0; i < MAX_NR_CONSOLES; i++) { |
1437 | kbd_table[i].ledflagstate = KBD_DEFLEDS; | |
1438 | kbd_table[i].default_ledflagstate = KBD_DEFLEDS; | |
1439 | kbd_table[i].ledmode = LED_SHOW_FLAGS; | |
1440 | kbd_table[i].lockstate = KBD_DEFLOCK; | |
1441 | kbd_table[i].slockstate = 0; | |
1442 | kbd_table[i].modeflags = KBD_DEFMODE; | |
2e8ecb9d | 1443 | kbd_table[i].kbdmode = default_utf8 ? VC_UNICODE : VC_XLATE; |
2b192908 | 1444 | } |
1da177e4 | 1445 | |
4263cf0f DT |
1446 | error = input_register_handler(&kbd_handler); |
1447 | if (error) | |
1448 | return error; | |
1da177e4 LT |
1449 | |
1450 | tasklet_enable(&keyboard_tasklet); | |
1451 | tasklet_schedule(&keyboard_tasklet); | |
1452 | ||
1453 | return 0; | |
1454 | } |