]>
Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
1da177e4 LT |
2 | * Written for linux by Johan Myreen as a translation from |
3 | * the assembly version by Linus (with diacriticals added) | |
4 | * | |
5 | * Some additional features added by Christoph Niemann (ChN), March 1993 | |
6 | * | |
7 | * Loadable keymaps by Risto Kankkunen, May 1993 | |
8 | * | |
9 | * Diacriticals redone & other small changes, aeb@cwi.nl, June 1993 | |
10 | * Added decr/incr_console, dynamic keymaps, Unicode support, | |
11 | * dynamic function/string keys, led setting, Sept 1994 | |
12 | * `Sticky' modifier keys, 951006. | |
13 | * | |
14 | * 11-11-96: SAK should now work in the raw mode (Martin Mares) | |
fe1e8604 | 15 | * |
1da177e4 LT |
16 | * Modified to provide 'generic' keyboard support by Hamish Macdonald |
17 | * Merge with the m68k keyboard driver and split-off of the PC low-level | |
18 | * parts by Geert Uytterhoeven, May 1997 | |
19 | * | |
20 | * 27-05-97: Added support for the Magic SysRq Key (Martin Mares) | |
21 | * 30-07-98: Dead keys redone, aeb@cwi.nl. | |
22 | * 21-08-02: Converted to input API, major cleanup. (Vojtech Pavlik) | |
23 | */ | |
24 | ||
9272e9a2 DT |
25 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
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> | |
1da177e4 | 41 | #include <linux/input.h> |
83cc5ed3 | 42 | #include <linux/reboot.h> |
41ab4396 | 43 | #include <linux/notifier.h> |
b39b0440 | 44 | #include <linux/jiffies.h> |
1da177e4 | 45 | |
1da177e4 LT |
46 | extern void ctrl_alt_del(void); |
47 | ||
48 | /* | |
49 | * Exported functions/variables | |
50 | */ | |
51 | ||
52 | #define KBD_DEFMODE ((1 << VC_REPEAT) | (1 << VC_META)) | |
53 | ||
54 | /* | |
55 | * Some laptops take the 789uiojklm,. keys as number pad when NumLock is on. | |
56 | * This seems a good reason to start with NumLock off. On HIL keyboards | |
fe1e8604 | 57 | * of PARISC machines however there is no NumLock key and everyone expects the keypad |
1da177e4 LT |
58 | * to be used for numbers. |
59 | */ | |
60 | ||
61 | #if defined(CONFIG_PARISC) && (defined(CONFIG_KEYBOARD_HIL) || defined(CONFIG_KEYBOARD_HIL_OLD)) | |
62 | #define KBD_DEFLEDS (1 << VC_NUMLOCK) | |
63 | #else | |
64 | #define KBD_DEFLEDS 0 | |
65 | #endif | |
66 | ||
67 | #define KBD_DEFLOCK 0 | |
68 | ||
69 | void compute_shiftstate(void); | |
70 | ||
71 | /* | |
72 | * Handler Tables. | |
73 | */ | |
74 | ||
75 | #define K_HANDLERS\ | |
76 | k_self, k_fn, k_spec, k_pad,\ | |
77 | k_dead, k_cons, k_cur, k_shift,\ | |
78 | k_meta, k_ascii, k_lock, k_lowercase,\ | |
b9ec4e10 | 79 | k_slock, k_dead2, k_brl, k_ignore |
1da177e4 | 80 | |
fe1e8604 | 81 | typedef void (k_handler_fn)(struct vc_data *vc, unsigned char value, |
7d12e780 | 82 | char up_flag); |
1da177e4 | 83 | static k_handler_fn K_HANDLERS; |
97f5f0cd | 84 | static k_handler_fn *k_handler[16] = { K_HANDLERS }; |
1da177e4 LT |
85 | |
86 | #define FN_HANDLERS\ | |
fe1e8604 DT |
87 | fn_null, fn_enter, fn_show_ptregs, fn_show_mem,\ |
88 | fn_show_state, fn_send_intr, fn_lastcons, fn_caps_toggle,\ | |
89 | fn_num, fn_hold, fn_scroll_forw, fn_scroll_back,\ | |
90 | fn_boot_it, fn_caps_on, fn_compose, fn_SAK,\ | |
91 | fn_dec_console, fn_inc_console, fn_spawn_con, fn_bare_num | |
1da177e4 | 92 | |
7d12e780 | 93 | typedef void (fn_handler_fn)(struct vc_data *vc); |
1da177e4 LT |
94 | static fn_handler_fn FN_HANDLERS; |
95 | static fn_handler_fn *fn_handler[] = { FN_HANDLERS }; | |
96 | ||
97 | /* | |
98 | * Variables exported for vt_ioctl.c | |
99 | */ | |
100 | ||
101 | /* maximum values each key_handler can handle */ | |
102 | const int max_vals[] = { | |
103 | 255, ARRAY_SIZE(func_table) - 1, ARRAY_SIZE(fn_handler) - 1, NR_PAD - 1, | |
104 | NR_DEAD - 1, 255, 3, NR_SHIFT - 1, 255, NR_ASCII - 1, NR_LOCK - 1, | |
b9ec4e10 | 105 | 255, NR_LOCK - 1, 255, NR_BRL - 1 |
1da177e4 LT |
106 | }; |
107 | ||
108 | const int NR_TYPES = ARRAY_SIZE(max_vals); | |
109 | ||
110 | struct kbd_struct kbd_table[MAX_NR_CONSOLES]; | |
f7511d5f | 111 | EXPORT_SYMBOL_GPL(kbd_table); |
1da177e4 | 112 | static struct kbd_struct *kbd = kbd_table; |
1da177e4 | 113 | |
81af8d67 | 114 | struct vt_spawn_console vt_spawn_con = { |
ccc94256 | 115 | .lock = __SPIN_LOCK_UNLOCKED(vt_spawn_con.lock), |
81af8d67 EB |
116 | .pid = NULL, |
117 | .sig = 0, | |
118 | }; | |
1da177e4 LT |
119 | |
120 | /* | |
121 | * Variables exported for vt.c | |
122 | */ | |
123 | ||
124 | int shift_state = 0; | |
125 | ||
126 | /* | |
127 | * Internal Data. | |
128 | */ | |
129 | ||
130 | static struct input_handler kbd_handler; | |
21cea58e | 131 | static DEFINE_SPINLOCK(kbd_event_lock); |
7b19ada2 | 132 | static unsigned long key_down[BITS_TO_LONGS(KEY_CNT)]; /* keyboard key bitmap */ |
1da177e4 | 133 | static unsigned char shift_down[NR_SHIFT]; /* shift state counters.. */ |
e0785572 | 134 | static bool dead_key_next; |
1da177e4 | 135 | static int npadch = -1; /* -1 or number assembled on pad */ |
b9ec4e10 | 136 | static unsigned int diacr; |
1da177e4 LT |
137 | static char rep; /* flag telling character repeat */ |
138 | ||
139 | static unsigned char ledstate = 0xff; /* undefined */ | |
140 | static unsigned char ledioctl; | |
141 | ||
142 | static struct ledptr { | |
143 | unsigned int *addr; | |
144 | unsigned int mask; | |
145 | unsigned char valid:1; | |
146 | } ledptrs[3]; | |
147 | ||
41ab4396 ST |
148 | /* |
149 | * Notifier list for console keyboard events | |
150 | */ | |
151 | static ATOMIC_NOTIFIER_HEAD(keyboard_notifier_list); | |
152 | ||
153 | int register_keyboard_notifier(struct notifier_block *nb) | |
154 | { | |
155 | return atomic_notifier_chain_register(&keyboard_notifier_list, nb); | |
156 | } | |
157 | EXPORT_SYMBOL_GPL(register_keyboard_notifier); | |
158 | ||
159 | int unregister_keyboard_notifier(struct notifier_block *nb) | |
160 | { | |
161 | return atomic_notifier_chain_unregister(&keyboard_notifier_list, nb); | |
162 | } | |
163 | EXPORT_SYMBOL_GPL(unregister_keyboard_notifier); | |
164 | ||
1da177e4 | 165 | /* |
c8e4c772 MR |
166 | * Translation of scancodes to keycodes. We set them on only the first |
167 | * keyboard in the list that accepts the scancode and keycode. | |
168 | * Explanation for not choosing the first attached keyboard anymore: | |
169 | * USB keyboards for example have two event devices: one for all "normal" | |
170 | * keys and one for extra function keys (like "volume up", "make coffee", | |
171 | * etc.). So this means that scancodes for the extra function keys won't | |
172 | * be valid for the first event device, but will be for the second. | |
1da177e4 | 173 | */ |
66d2a595 DT |
174 | |
175 | struct getset_keycode_data { | |
8613e4c2 | 176 | struct input_keymap_entry ke; |
66d2a595 DT |
177 | int error; |
178 | }; | |
179 | ||
180 | static int getkeycode_helper(struct input_handle *handle, void *data) | |
181 | { | |
182 | struct getset_keycode_data *d = data; | |
183 | ||
8613e4c2 | 184 | d->error = input_get_keycode(handle->dev, &d->ke); |
66d2a595 DT |
185 | |
186 | return d->error == 0; /* stop as soon as we successfully get one */ | |
187 | } | |
188 | ||
1da177e4 LT |
189 | int getkeycode(unsigned int scancode) |
190 | { | |
8613e4c2 MCC |
191 | struct getset_keycode_data d = { |
192 | .ke = { | |
193 | .flags = 0, | |
194 | .len = sizeof(scancode), | |
195 | .keycode = 0, | |
196 | }, | |
197 | .error = -ENODEV, | |
198 | }; | |
199 | ||
200 | memcpy(d.ke.scancode, &scancode, sizeof(scancode)); | |
c8e4c772 | 201 | |
66d2a595 | 202 | input_handler_for_each_handle(&kbd_handler, &d, getkeycode_helper); |
1da177e4 | 203 | |
8613e4c2 | 204 | return d.error ?: d.ke.keycode; |
66d2a595 DT |
205 | } |
206 | ||
207 | static int setkeycode_helper(struct input_handle *handle, void *data) | |
208 | { | |
209 | struct getset_keycode_data *d = data; | |
210 | ||
8613e4c2 | 211 | d->error = input_set_keycode(handle->dev, &d->ke); |
66d2a595 DT |
212 | |
213 | return d->error == 0; /* stop as soon as we successfully set one */ | |
1da177e4 LT |
214 | } |
215 | ||
216 | int setkeycode(unsigned int scancode, unsigned int keycode) | |
217 | { | |
8613e4c2 MCC |
218 | struct getset_keycode_data d = { |
219 | .ke = { | |
220 | .flags = 0, | |
221 | .len = sizeof(scancode), | |
222 | .keycode = keycode, | |
223 | }, | |
224 | .error = -ENODEV, | |
225 | }; | |
226 | ||
227 | memcpy(d.ke.scancode, &scancode, sizeof(scancode)); | |
c8e4c772 | 228 | |
66d2a595 | 229 | input_handler_for_each_handle(&kbd_handler, &d, setkeycode_helper); |
1da177e4 | 230 | |
66d2a595 | 231 | return d.error; |
1da177e4 LT |
232 | } |
233 | ||
234 | /* | |
18f7ad59 DT |
235 | * Making beeps and bells. Note that we prefer beeps to bells, but when |
236 | * shutting the sound off we do both. | |
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 | 244 | if (test_bit(EV_SND, dev->evbit)) { |
18f7ad59 | 245 | if (test_bit(SND_TONE, dev->sndbit)) { |
66d2a595 | 246 | input_inject_event(handle, EV_SND, SND_TONE, *hz); |
18f7ad59 DT |
247 | if (*hz) |
248 | return 0; | |
249 | } | |
250 | if (test_bit(SND_BELL, dev->sndbit)) | |
66d2a595 | 251 | input_inject_event(handle, EV_SND, SND_BELL, *hz ? 1 : 0); |
1da177e4 | 252 | } |
66d2a595 DT |
253 | |
254 | return 0; | |
255 | } | |
256 | ||
257 | static void kd_nosound(unsigned long ignored) | |
258 | { | |
259 | static unsigned int zero; | |
260 | ||
261 | input_handler_for_each_handle(&kbd_handler, &zero, kd_sound_helper); | |
1da177e4 LT |
262 | } |
263 | ||
8d06afab | 264 | static DEFINE_TIMER(kd_mksound_timer, kd_nosound, 0, 0); |
1da177e4 LT |
265 | |
266 | void kd_mksound(unsigned int hz, unsigned int ticks) | |
267 | { | |
66d2a595 | 268 | del_timer_sync(&kd_mksound_timer); |
1da177e4 | 269 | |
66d2a595 | 270 | input_handler_for_each_handle(&kbd_handler, &hz, kd_sound_helper); |
1da177e4 | 271 | |
66d2a595 DT |
272 | if (hz && ticks) |
273 | mod_timer(&kd_mksound_timer, jiffies + ticks); | |
1da177e4 | 274 | } |
f7511d5f | 275 | EXPORT_SYMBOL(kd_mksound); |
1da177e4 LT |
276 | |
277 | /* | |
278 | * Setting the keyboard rate. | |
279 | */ | |
280 | ||
66d2a595 | 281 | static int kbd_rate_helper(struct input_handle *handle, void *data) |
1da177e4 | 282 | { |
66d2a595 DT |
283 | struct input_dev *dev = handle->dev; |
284 | struct kbd_repeat *rep = data; | |
285 | ||
286 | if (test_bit(EV_REP, dev->evbit)) { | |
287 | ||
288 | if (rep[0].delay > 0) | |
289 | input_inject_event(handle, | |
290 | EV_REP, REP_DELAY, rep[0].delay); | |
291 | if (rep[0].period > 0) | |
292 | input_inject_event(handle, | |
293 | EV_REP, REP_PERIOD, rep[0].period); | |
294 | ||
295 | rep[1].delay = dev->rep[REP_DELAY]; | |
296 | rep[1].period = dev->rep[REP_PERIOD]; | |
1da177e4 | 297 | } |
66d2a595 DT |
298 | |
299 | return 0; | |
300 | } | |
301 | ||
302 | int kbd_rate(struct kbd_repeat *rep) | |
303 | { | |
304 | struct kbd_repeat data[2] = { *rep }; | |
305 | ||
306 | input_handler_for_each_handle(&kbd_handler, data, kbd_rate_helper); | |
307 | *rep = data[1]; /* Copy currently used settings */ | |
308 | ||
1da177e4 LT |
309 | return 0; |
310 | } | |
311 | ||
312 | /* | |
313 | * Helper Functions. | |
314 | */ | |
315 | static void put_queue(struct vc_data *vc, int ch) | |
316 | { | |
8ce73264 | 317 | struct tty_struct *tty = vc->port.tty; |
1da177e4 LT |
318 | |
319 | if (tty) { | |
320 | tty_insert_flip_char(tty, ch, 0); | |
321 | con_schedule_flip(tty); | |
322 | } | |
323 | } | |
324 | ||
325 | static void puts_queue(struct vc_data *vc, char *cp) | |
326 | { | |
8ce73264 | 327 | struct tty_struct *tty = vc->port.tty; |
1da177e4 LT |
328 | |
329 | if (!tty) | |
330 | return; | |
331 | ||
332 | while (*cp) { | |
333 | tty_insert_flip_char(tty, *cp, 0); | |
334 | cp++; | |
335 | } | |
336 | con_schedule_flip(tty); | |
337 | } | |
338 | ||
339 | static void applkey(struct vc_data *vc, int key, char mode) | |
340 | { | |
341 | static char buf[] = { 0x1b, 'O', 0x00, 0x00 }; | |
342 | ||
343 | buf[1] = (mode ? 'O' : '['); | |
344 | buf[2] = key; | |
345 | puts_queue(vc, buf); | |
346 | } | |
347 | ||
348 | /* | |
349 | * Many other routines do put_queue, but I think either | |
350 | * they produce ASCII, or they produce some user-assigned | |
351 | * string, and in both cases we might assume that it is | |
759448f4 | 352 | * in utf-8 already. |
1da177e4 | 353 | */ |
759448f4 | 354 | static void to_utf8(struct vc_data *vc, uint c) |
1da177e4 LT |
355 | { |
356 | if (c < 0x80) | |
357 | /* 0******* */ | |
358 | put_queue(vc, c); | |
fe1e8604 | 359 | else if (c < 0x800) { |
1da177e4 | 360 | /* 110***** 10****** */ |
fe1e8604 | 361 | put_queue(vc, 0xc0 | (c >> 6)); |
1da177e4 | 362 | put_queue(vc, 0x80 | (c & 0x3f)); |
e0785572 DT |
363 | } else if (c < 0x10000) { |
364 | if (c >= 0xD800 && c < 0xE000) | |
759448f4 JE |
365 | return; |
366 | if (c == 0xFFFF) | |
367 | return; | |
1da177e4 LT |
368 | /* 1110**** 10****** 10****** */ |
369 | put_queue(vc, 0xe0 | (c >> 12)); | |
370 | put_queue(vc, 0x80 | ((c >> 6) & 0x3f)); | |
371 | put_queue(vc, 0x80 | (c & 0x3f)); | |
e0785572 | 372 | } else if (c < 0x110000) { |
759448f4 JE |
373 | /* 11110*** 10****** 10****** 10****** */ |
374 | put_queue(vc, 0xf0 | (c >> 18)); | |
375 | put_queue(vc, 0x80 | ((c >> 12) & 0x3f)); | |
376 | put_queue(vc, 0x80 | ((c >> 6) & 0x3f)); | |
377 | put_queue(vc, 0x80 | (c & 0x3f)); | |
fe1e8604 | 378 | } |
1da177e4 LT |
379 | } |
380 | ||
fe1e8604 | 381 | /* |
1da177e4 LT |
382 | * Called after returning from RAW mode or when changing consoles - recompute |
383 | * shift_down[] and shift_state from key_down[] maybe called when keymap is | |
384 | * undefined, so that shiftkey release is seen | |
385 | */ | |
386 | void compute_shiftstate(void) | |
387 | { | |
388 | unsigned int i, j, k, sym, val; | |
389 | ||
390 | shift_state = 0; | |
391 | memset(shift_down, 0, sizeof(shift_down)); | |
fe1e8604 | 392 | |
1da177e4 LT |
393 | for (i = 0; i < ARRAY_SIZE(key_down); i++) { |
394 | ||
395 | if (!key_down[i]) | |
396 | continue; | |
397 | ||
398 | k = i * BITS_PER_LONG; | |
399 | ||
400 | for (j = 0; j < BITS_PER_LONG; j++, k++) { | |
401 | ||
402 | if (!test_bit(k, key_down)) | |
403 | continue; | |
404 | ||
405 | sym = U(key_maps[0][k]); | |
406 | if (KTYP(sym) != KT_SHIFT && KTYP(sym) != KT_SLOCK) | |
407 | continue; | |
408 | ||
409 | val = KVAL(sym); | |
410 | if (val == KVAL(K_CAPSSHIFT)) | |
411 | val = KVAL(K_SHIFT); | |
412 | ||
413 | shift_down[val]++; | |
414 | shift_state |= (1 << val); | |
415 | } | |
416 | } | |
417 | } | |
418 | ||
419 | /* | |
420 | * We have a combining character DIACR here, followed by the character CH. | |
421 | * If the combination occurs in the table, return the corresponding value. | |
422 | * Otherwise, if CH is a space or equals DIACR, return DIACR. | |
423 | * Otherwise, conclude that DIACR was not combining after all, | |
424 | * queue it and return CH. | |
425 | */ | |
b9ec4e10 | 426 | static unsigned int handle_diacr(struct vc_data *vc, unsigned int ch) |
1da177e4 | 427 | { |
b9ec4e10 | 428 | unsigned int d = diacr; |
1da177e4 LT |
429 | unsigned int i; |
430 | ||
431 | diacr = 0; | |
432 | ||
b9ec4e10 ST |
433 | if ((d & ~0xff) == BRL_UC_ROW) { |
434 | if ((ch & ~0xff) == BRL_UC_ROW) | |
435 | return d | ch; | |
436 | } else { | |
437 | for (i = 0; i < accent_table_size; i++) | |
438 | if (accent_table[i].diacr == d && accent_table[i].base == ch) | |
439 | return accent_table[i].result; | |
1da177e4 LT |
440 | } |
441 | ||
b9ec4e10 | 442 | if (ch == ' ' || ch == (BRL_UC_ROW|0) || ch == d) |
1da177e4 LT |
443 | return d; |
444 | ||
b9ec4e10 | 445 | if (kbd->kbdmode == VC_UNICODE) |
04c71976 ST |
446 | to_utf8(vc, d); |
447 | else { | |
448 | int c = conv_uni_to_8bit(d); | |
449 | if (c != -1) | |
450 | put_queue(vc, c); | |
451 | } | |
b9ec4e10 | 452 | |
1da177e4 LT |
453 | return ch; |
454 | } | |
455 | ||
456 | /* | |
457 | * Special function handlers | |
458 | */ | |
7d12e780 | 459 | static void fn_enter(struct vc_data *vc) |
1da177e4 LT |
460 | { |
461 | if (diacr) { | |
b9ec4e10 | 462 | if (kbd->kbdmode == VC_UNICODE) |
04c71976 ST |
463 | to_utf8(vc, diacr); |
464 | else { | |
465 | int c = conv_uni_to_8bit(diacr); | |
466 | if (c != -1) | |
467 | put_queue(vc, c); | |
468 | } | |
1da177e4 LT |
469 | diacr = 0; |
470 | } | |
e0785572 | 471 | |
1da177e4 LT |
472 | put_queue(vc, 13); |
473 | if (vc_kbd_mode(kbd, VC_CRLF)) | |
474 | put_queue(vc, 10); | |
475 | } | |
476 | ||
7d12e780 | 477 | static void fn_caps_toggle(struct vc_data *vc) |
1da177e4 LT |
478 | { |
479 | if (rep) | |
480 | return; | |
e0785572 | 481 | |
1da177e4 LT |
482 | chg_vc_kbd_led(kbd, VC_CAPSLOCK); |
483 | } | |
484 | ||
7d12e780 | 485 | static void fn_caps_on(struct vc_data *vc) |
1da177e4 LT |
486 | { |
487 | if (rep) | |
488 | return; | |
e0785572 | 489 | |
1da177e4 LT |
490 | set_vc_kbd_led(kbd, VC_CAPSLOCK); |
491 | } | |
492 | ||
7d12e780 | 493 | static void fn_show_ptregs(struct vc_data *vc) |
1da177e4 | 494 | { |
7d12e780 | 495 | struct pt_regs *regs = get_irq_regs(); |
e0785572 | 496 | |
1da177e4 LT |
497 | if (regs) |
498 | show_regs(regs); | |
499 | } | |
500 | ||
7d12e780 | 501 | static void fn_hold(struct vc_data *vc) |
1da177e4 | 502 | { |
8ce73264 | 503 | struct tty_struct *tty = vc->port.tty; |
1da177e4 LT |
504 | |
505 | if (rep || !tty) | |
506 | return; | |
507 | ||
508 | /* | |
509 | * Note: SCROLLOCK will be set (cleared) by stop_tty (start_tty); | |
510 | * these routines are also activated by ^S/^Q. | |
511 | * (And SCROLLOCK can also be set by the ioctl KDSKBLED.) | |
512 | */ | |
513 | if (tty->stopped) | |
514 | start_tty(tty); | |
515 | else | |
516 | stop_tty(tty); | |
517 | } | |
518 | ||
7d12e780 | 519 | static void fn_num(struct vc_data *vc) |
1da177e4 | 520 | { |
e0785572 | 521 | if (vc_kbd_mode(kbd, VC_APPLIC)) |
1da177e4 LT |
522 | applkey(vc, 'P', 1); |
523 | else | |
7d12e780 | 524 | fn_bare_num(vc); |
1da177e4 LT |
525 | } |
526 | ||
527 | /* | |
528 | * Bind this to Shift-NumLock if you work in application keypad mode | |
529 | * but want to be able to change the NumLock flag. | |
530 | * Bind this to NumLock if you prefer that the NumLock key always | |
531 | * changes the NumLock flag. | |
532 | */ | |
7d12e780 | 533 | static void fn_bare_num(struct vc_data *vc) |
1da177e4 LT |
534 | { |
535 | if (!rep) | |
536 | chg_vc_kbd_led(kbd, VC_NUMLOCK); | |
537 | } | |
538 | ||
7d12e780 | 539 | static void fn_lastcons(struct vc_data *vc) |
1da177e4 LT |
540 | { |
541 | /* switch to the last used console, ChN */ | |
542 | set_console(last_console); | |
543 | } | |
544 | ||
7d12e780 | 545 | static void fn_dec_console(struct vc_data *vc) |
1da177e4 LT |
546 | { |
547 | int i, cur = fg_console; | |
548 | ||
549 | /* Currently switching? Queue this next switch relative to that. */ | |
550 | if (want_console != -1) | |
551 | cur = want_console; | |
552 | ||
fe1e8604 | 553 | for (i = cur - 1; i != cur; i--) { |
1da177e4 | 554 | if (i == -1) |
fe1e8604 | 555 | i = MAX_NR_CONSOLES - 1; |
1da177e4 LT |
556 | if (vc_cons_allocated(i)) |
557 | break; | |
558 | } | |
559 | set_console(i); | |
560 | } | |
561 | ||
7d12e780 | 562 | static void fn_inc_console(struct vc_data *vc) |
1da177e4 LT |
563 | { |
564 | int i, cur = fg_console; | |
565 | ||
566 | /* Currently switching? Queue this next switch relative to that. */ | |
567 | if (want_console != -1) | |
568 | cur = want_console; | |
569 | ||
570 | for (i = cur+1; i != cur; i++) { | |
571 | if (i == MAX_NR_CONSOLES) | |
572 | i = 0; | |
573 | if (vc_cons_allocated(i)) | |
574 | break; | |
575 | } | |
576 | set_console(i); | |
577 | } | |
578 | ||
7d12e780 | 579 | static void fn_send_intr(struct vc_data *vc) |
1da177e4 | 580 | { |
8ce73264 | 581 | struct tty_struct *tty = vc->port.tty; |
1da177e4 LT |
582 | |
583 | if (!tty) | |
584 | return; | |
585 | tty_insert_flip_char(tty, 0, TTY_BREAK); | |
586 | con_schedule_flip(tty); | |
587 | } | |
588 | ||
7d12e780 | 589 | static void fn_scroll_forw(struct vc_data *vc) |
1da177e4 LT |
590 | { |
591 | scrollfront(vc, 0); | |
592 | } | |
593 | ||
7d12e780 | 594 | static void fn_scroll_back(struct vc_data *vc) |
1da177e4 LT |
595 | { |
596 | scrollback(vc, 0); | |
597 | } | |
598 | ||
7d12e780 | 599 | static void fn_show_mem(struct vc_data *vc) |
1da177e4 | 600 | { |
b2b755b5 | 601 | show_mem(0); |
1da177e4 LT |
602 | } |
603 | ||
7d12e780 | 604 | static void fn_show_state(struct vc_data *vc) |
1da177e4 LT |
605 | { |
606 | show_state(); | |
607 | } | |
608 | ||
7d12e780 | 609 | static void fn_boot_it(struct vc_data *vc) |
1da177e4 LT |
610 | { |
611 | ctrl_alt_del(); | |
612 | } | |
613 | ||
7d12e780 | 614 | static void fn_compose(struct vc_data *vc) |
1da177e4 | 615 | { |
e0785572 | 616 | dead_key_next = true; |
1da177e4 LT |
617 | } |
618 | ||
7d12e780 | 619 | static void fn_spawn_con(struct vc_data *vc) |
1da177e4 | 620 | { |
81af8d67 EB |
621 | spin_lock(&vt_spawn_con.lock); |
622 | if (vt_spawn_con.pid) | |
623 | if (kill_pid(vt_spawn_con.pid, vt_spawn_con.sig, 1)) { | |
624 | put_pid(vt_spawn_con.pid); | |
625 | vt_spawn_con.pid = NULL; | |
626 | } | |
627 | spin_unlock(&vt_spawn_con.lock); | |
1da177e4 LT |
628 | } |
629 | ||
7d12e780 | 630 | static void fn_SAK(struct vc_data *vc) |
1da177e4 | 631 | { |
8b6312f4 | 632 | struct work_struct *SAK_work = &vc_cons[fg_console].SAK_work; |
8b6312f4 | 633 | schedule_work(SAK_work); |
1da177e4 LT |
634 | } |
635 | ||
7d12e780 | 636 | static void fn_null(struct vc_data *vc) |
1da177e4 LT |
637 | { |
638 | compute_shiftstate(); | |
639 | } | |
640 | ||
641 | /* | |
642 | * Special key handlers | |
643 | */ | |
7d12e780 | 644 | static void k_ignore(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
645 | { |
646 | } | |
647 | ||
7d12e780 | 648 | static void k_spec(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
649 | { |
650 | if (up_flag) | |
651 | return; | |
652 | if (value >= ARRAY_SIZE(fn_handler)) | |
653 | return; | |
fe1e8604 | 654 | if ((kbd->kbdmode == VC_RAW || |
9fc3de9c AT |
655 | kbd->kbdmode == VC_MEDIUMRAW || |
656 | kbd->kbdmode == VC_OFF) && | |
1da177e4 LT |
657 | value != KVAL(K_SAK)) |
658 | return; /* SAK is allowed even in raw mode */ | |
7d12e780 | 659 | fn_handler[value](vc); |
1da177e4 LT |
660 | } |
661 | ||
7d12e780 | 662 | static void k_lowercase(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 663 | { |
9272e9a2 | 664 | pr_err("k_lowercase was called - impossible\n"); |
1da177e4 LT |
665 | } |
666 | ||
7d12e780 | 667 | static void k_unicode(struct vc_data *vc, unsigned int value, char up_flag) |
1da177e4 LT |
668 | { |
669 | if (up_flag) | |
670 | return; /* no action, if this is a key release */ | |
671 | ||
672 | if (diacr) | |
673 | value = handle_diacr(vc, value); | |
674 | ||
675 | if (dead_key_next) { | |
e0785572 | 676 | dead_key_next = false; |
1da177e4 LT |
677 | diacr = value; |
678 | return; | |
679 | } | |
b9ec4e10 | 680 | if (kbd->kbdmode == VC_UNICODE) |
04c71976 ST |
681 | to_utf8(vc, value); |
682 | else { | |
683 | int c = conv_uni_to_8bit(value); | |
684 | if (c != -1) | |
685 | put_queue(vc, c); | |
686 | } | |
1da177e4 LT |
687 | } |
688 | ||
689 | /* | |
690 | * Handle dead key. Note that we now may have several | |
691 | * dead keys modifying the same character. Very useful | |
692 | * for Vietnamese. | |
693 | */ | |
7d12e780 | 694 | static void k_deadunicode(struct vc_data *vc, unsigned int value, char up_flag) |
1da177e4 LT |
695 | { |
696 | if (up_flag) | |
697 | return; | |
e0785572 | 698 | |
1da177e4 LT |
699 | diacr = (diacr ? handle_diacr(vc, value) : value); |
700 | } | |
701 | ||
7d12e780 | 702 | static void k_self(struct vc_data *vc, unsigned char value, char up_flag) |
b9ec4e10 | 703 | { |
d2187ebd | 704 | k_unicode(vc, conv_8bit_to_uni(value), up_flag); |
b9ec4e10 ST |
705 | } |
706 | ||
7d12e780 | 707 | static void k_dead2(struct vc_data *vc, unsigned char value, char up_flag) |
b9ec4e10 | 708 | { |
7d12e780 | 709 | k_deadunicode(vc, value, up_flag); |
b9ec4e10 ST |
710 | } |
711 | ||
1da177e4 LT |
712 | /* |
713 | * Obsolete - for backwards compatibility only | |
714 | */ | |
7d12e780 | 715 | static void k_dead(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 716 | { |
0f5e560e | 717 | static const unsigned char ret_diacr[NR_DEAD] = {'`', '\'', '^', '~', '"', ',' }; |
e0785572 DT |
718 | |
719 | k_deadunicode(vc, ret_diacr[value], up_flag); | |
1da177e4 LT |
720 | } |
721 | ||
7d12e780 | 722 | static void k_cons(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
723 | { |
724 | if (up_flag) | |
725 | return; | |
e0785572 | 726 | |
1da177e4 LT |
727 | set_console(value); |
728 | } | |
729 | ||
7d12e780 | 730 | static void k_fn(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 731 | { |
1da177e4 LT |
732 | if (up_flag) |
733 | return; | |
e0785572 DT |
734 | |
735 | if ((unsigned)value < ARRAY_SIZE(func_table)) { | |
1da177e4 LT |
736 | if (func_table[value]) |
737 | puts_queue(vc, func_table[value]); | |
738 | } else | |
9272e9a2 | 739 | pr_err("k_fn called with value=%d\n", value); |
1da177e4 LT |
740 | } |
741 | ||
7d12e780 | 742 | static void k_cur(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 743 | { |
e52b29c2 | 744 | static const char cur_chars[] = "BDCA"; |
1da177e4 LT |
745 | |
746 | if (up_flag) | |
747 | return; | |
e0785572 | 748 | |
1da177e4 LT |
749 | applkey(vc, cur_chars[value], vc_kbd_mode(kbd, VC_CKMODE)); |
750 | } | |
751 | ||
7d12e780 | 752 | static void k_pad(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 753 | { |
0f5e560e AM |
754 | static const char pad_chars[] = "0123456789+-*/\015,.?()#"; |
755 | static const char app_map[] = "pqrstuvwxylSRQMnnmPQS"; | |
1da177e4 LT |
756 | |
757 | if (up_flag) | |
758 | return; /* no action, if this is a key release */ | |
759 | ||
760 | /* kludge... shift forces cursor/number keys */ | |
761 | if (vc_kbd_mode(kbd, VC_APPLIC) && !shift_down[KG_SHIFT]) { | |
762 | applkey(vc, app_map[value], 1); | |
763 | return; | |
764 | } | |
765 | ||
e0785572 DT |
766 | if (!vc_kbd_led(kbd, VC_NUMLOCK)) { |
767 | ||
1da177e4 | 768 | switch (value) { |
e0785572 DT |
769 | case KVAL(K_PCOMMA): |
770 | case KVAL(K_PDOT): | |
771 | k_fn(vc, KVAL(K_REMOVE), 0); | |
772 | return; | |
773 | case KVAL(K_P0): | |
774 | k_fn(vc, KVAL(K_INSERT), 0); | |
775 | return; | |
776 | case KVAL(K_P1): | |
777 | k_fn(vc, KVAL(K_SELECT), 0); | |
778 | return; | |
779 | case KVAL(K_P2): | |
780 | k_cur(vc, KVAL(K_DOWN), 0); | |
781 | return; | |
782 | case KVAL(K_P3): | |
783 | k_fn(vc, KVAL(K_PGDN), 0); | |
784 | return; | |
785 | case KVAL(K_P4): | |
786 | k_cur(vc, KVAL(K_LEFT), 0); | |
787 | return; | |
788 | case KVAL(K_P6): | |
789 | k_cur(vc, KVAL(K_RIGHT), 0); | |
790 | return; | |
791 | case KVAL(K_P7): | |
792 | k_fn(vc, KVAL(K_FIND), 0); | |
793 | return; | |
794 | case KVAL(K_P8): | |
795 | k_cur(vc, KVAL(K_UP), 0); | |
796 | return; | |
797 | case KVAL(K_P9): | |
798 | k_fn(vc, KVAL(K_PGUP), 0); | |
799 | return; | |
800 | case KVAL(K_P5): | |
801 | applkey(vc, 'G', vc_kbd_mode(kbd, VC_APPLIC)); | |
802 | return; | |
1da177e4 | 803 | } |
e0785572 | 804 | } |
1da177e4 LT |
805 | |
806 | put_queue(vc, pad_chars[value]); | |
807 | if (value == KVAL(K_PENTER) && vc_kbd_mode(kbd, VC_CRLF)) | |
808 | put_queue(vc, 10); | |
809 | } | |
810 | ||
7d12e780 | 811 | static void k_shift(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
812 | { |
813 | int old_state = shift_state; | |
814 | ||
815 | if (rep) | |
816 | return; | |
817 | /* | |
818 | * Mimic typewriter: | |
819 | * a CapsShift key acts like Shift but undoes CapsLock | |
820 | */ | |
821 | if (value == KVAL(K_CAPSSHIFT)) { | |
822 | value = KVAL(K_SHIFT); | |
823 | if (!up_flag) | |
824 | clr_vc_kbd_led(kbd, VC_CAPSLOCK); | |
825 | } | |
826 | ||
827 | if (up_flag) { | |
828 | /* | |
829 | * handle the case that two shift or control | |
830 | * keys are depressed simultaneously | |
831 | */ | |
832 | if (shift_down[value]) | |
833 | shift_down[value]--; | |
834 | } else | |
835 | shift_down[value]++; | |
836 | ||
837 | if (shift_down[value]) | |
838 | shift_state |= (1 << value); | |
839 | else | |
840 | shift_state &= ~(1 << value); | |
841 | ||
842 | /* kludge */ | |
843 | if (up_flag && shift_state != old_state && npadch != -1) { | |
844 | if (kbd->kbdmode == VC_UNICODE) | |
759448f4 | 845 | to_utf8(vc, npadch); |
1da177e4 LT |
846 | else |
847 | put_queue(vc, npadch & 0xff); | |
848 | npadch = -1; | |
849 | } | |
850 | } | |
851 | ||
7d12e780 | 852 | static void k_meta(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
853 | { |
854 | if (up_flag) | |
855 | return; | |
856 | ||
857 | if (vc_kbd_mode(kbd, VC_META)) { | |
858 | put_queue(vc, '\033'); | |
859 | put_queue(vc, value); | |
860 | } else | |
861 | put_queue(vc, value | 0x80); | |
862 | } | |
863 | ||
7d12e780 | 864 | static void k_ascii(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
865 | { |
866 | int base; | |
867 | ||
868 | if (up_flag) | |
869 | return; | |
870 | ||
871 | if (value < 10) { | |
872 | /* decimal input of code, while Alt depressed */ | |
873 | base = 10; | |
874 | } else { | |
875 | /* hexadecimal input of code, while AltGr depressed */ | |
876 | value -= 10; | |
877 | base = 16; | |
878 | } | |
879 | ||
880 | if (npadch == -1) | |
881 | npadch = value; | |
882 | else | |
883 | npadch = npadch * base + value; | |
884 | } | |
885 | ||
7d12e780 | 886 | static void k_lock(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
887 | { |
888 | if (up_flag || rep) | |
889 | return; | |
e0785572 | 890 | |
1da177e4 LT |
891 | chg_vc_kbd_lock(kbd, value); |
892 | } | |
893 | ||
7d12e780 | 894 | static void k_slock(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 895 | { |
7d12e780 | 896 | k_shift(vc, value, up_flag); |
1da177e4 LT |
897 | if (up_flag || rep) |
898 | return; | |
e0785572 | 899 | |
1da177e4 LT |
900 | chg_vc_kbd_slock(kbd, value); |
901 | /* try to make Alt, oops, AltGr and such work */ | |
902 | if (!key_maps[kbd->lockstate ^ kbd->slockstate]) { | |
903 | kbd->slockstate = 0; | |
904 | chg_vc_kbd_slock(kbd, value); | |
905 | } | |
906 | } | |
907 | ||
b9ec4e10 | 908 | /* by default, 300ms interval for combination release */ |
77426d72 ST |
909 | static unsigned brl_timeout = 300; |
910 | MODULE_PARM_DESC(brl_timeout, "Braille keys release delay in ms (0 for commit on first key release)"); | |
911 | module_param(brl_timeout, uint, 0644); | |
912 | ||
913 | static unsigned brl_nbchords = 1; | |
914 | MODULE_PARM_DESC(brl_nbchords, "Number of chords that produce a braille pattern (0 for dead chords)"); | |
915 | module_param(brl_nbchords, uint, 0644); | |
916 | ||
7d12e780 | 917 | static void k_brlcommit(struct vc_data *vc, unsigned int pattern, char up_flag) |
77426d72 ST |
918 | { |
919 | static unsigned long chords; | |
920 | static unsigned committed; | |
921 | ||
922 | if (!brl_nbchords) | |
7d12e780 | 923 | k_deadunicode(vc, BRL_UC_ROW | pattern, up_flag); |
77426d72 ST |
924 | else { |
925 | committed |= pattern; | |
926 | chords++; | |
927 | if (chords == brl_nbchords) { | |
7d12e780 | 928 | k_unicode(vc, BRL_UC_ROW | committed, up_flag); |
77426d72 ST |
929 | chords = 0; |
930 | committed = 0; | |
931 | } | |
932 | } | |
933 | } | |
934 | ||
7d12e780 | 935 | static void k_brl(struct vc_data *vc, unsigned char value, char up_flag) |
b9ec4e10 | 936 | { |
e0785572 | 937 | static unsigned pressed, committing; |
b9ec4e10 ST |
938 | static unsigned long releasestart; |
939 | ||
940 | if (kbd->kbdmode != VC_UNICODE) { | |
941 | if (!up_flag) | |
9272e9a2 | 942 | pr_warning("keyboard mode must be unicode for braille patterns\n"); |
b9ec4e10 ST |
943 | return; |
944 | } | |
945 | ||
946 | if (!value) { | |
7d12e780 | 947 | k_unicode(vc, BRL_UC_ROW, up_flag); |
b9ec4e10 ST |
948 | return; |
949 | } | |
950 | ||
951 | if (value > 8) | |
952 | return; | |
953 | ||
e0785572 | 954 | if (!up_flag) { |
b9ec4e10 ST |
955 | pressed |= 1 << (value - 1); |
956 | if (!brl_timeout) | |
957 | committing = pressed; | |
e0785572 DT |
958 | } else if (brl_timeout) { |
959 | if (!committing || | |
960 | time_after(jiffies, | |
961 | releasestart + msecs_to_jiffies(brl_timeout))) { | |
962 | committing = pressed; | |
963 | releasestart = jiffies; | |
964 | } | |
965 | pressed &= ~(1 << (value - 1)); | |
966 | if (!pressed && committing) { | |
967 | k_brlcommit(vc, committing, 0); | |
968 | committing = 0; | |
969 | } | |
970 | } else { | |
971 | if (committing) { | |
972 | k_brlcommit(vc, committing, 0); | |
973 | committing = 0; | |
974 | } | |
975 | pressed &= ~(1 << (value - 1)); | |
b9ec4e10 ST |
976 | } |
977 | } | |
978 | ||
1da177e4 LT |
979 | /* |
980 | * The leds display either (i) the status of NumLock, CapsLock, ScrollLock, | |
981 | * or (ii) whatever pattern of lights people want to show using KDSETLED, | |
982 | * or (iii) specified bits of specified words in kernel memory. | |
983 | */ | |
984 | unsigned char getledstate(void) | |
985 | { | |
986 | return ledstate; | |
987 | } | |
988 | ||
989 | void setledstate(struct kbd_struct *kbd, unsigned int led) | |
990 | { | |
991 | if (!(led & ~7)) { | |
992 | ledioctl = led; | |
993 | kbd->ledmode = LED_SHOW_IOCTL; | |
994 | } else | |
995 | kbd->ledmode = LED_SHOW_FLAGS; | |
e0785572 | 996 | |
1da177e4 LT |
997 | set_leds(); |
998 | } | |
999 | ||
1000 | static inline unsigned char getleds(void) | |
1001 | { | |
1002 | struct kbd_struct *kbd = kbd_table + fg_console; | |
1003 | unsigned char leds; | |
1004 | int i; | |
1005 | ||
1006 | if (kbd->ledmode == LED_SHOW_IOCTL) | |
1007 | return ledioctl; | |
1008 | ||
1009 | leds = kbd->ledflagstate; | |
1010 | ||
1011 | if (kbd->ledmode == LED_SHOW_MEM) { | |
1012 | for (i = 0; i < 3; i++) | |
1013 | if (ledptrs[i].valid) { | |
1014 | if (*ledptrs[i].addr & ledptrs[i].mask) | |
1015 | leds |= (1 << i); | |
1016 | else | |
1017 | leds &= ~(1 << i); | |
1018 | } | |
1019 | } | |
1020 | return leds; | |
1021 | } | |
1022 | ||
66d2a595 DT |
1023 | static int kbd_update_leds_helper(struct input_handle *handle, void *data) |
1024 | { | |
1025 | unsigned char leds = *(unsigned char *)data; | |
1026 | ||
1027 | if (test_bit(EV_LED, handle->dev->evbit)) { | |
1028 | input_inject_event(handle, EV_LED, LED_SCROLLL, !!(leds & 0x01)); | |
1029 | input_inject_event(handle, EV_LED, LED_NUML, !!(leds & 0x02)); | |
1030 | input_inject_event(handle, EV_LED, LED_CAPSL, !!(leds & 0x04)); | |
1031 | input_inject_event(handle, EV_SYN, SYN_REPORT, 0); | |
1032 | } | |
1033 | ||
1034 | return 0; | |
1035 | } | |
1036 | ||
1da177e4 | 1037 | /* |
66d2a595 DT |
1038 | * This is the tasklet that updates LED state on all keyboards |
1039 | * attached to the box. The reason we use tasklet is that we | |
1040 | * need to handle the scenario when keyboard handler is not | |
1041 | * registered yet but we already getting updates form VT to | |
1042 | * update led state. | |
1da177e4 | 1043 | */ |
1da177e4 LT |
1044 | static void kbd_bh(unsigned long dummy) |
1045 | { | |
1da177e4 LT |
1046 | unsigned char leds = getleds(); |
1047 | ||
1048 | if (leds != ledstate) { | |
66d2a595 DT |
1049 | input_handler_for_each_handle(&kbd_handler, &leds, |
1050 | kbd_update_leds_helper); | |
1051 | ledstate = leds; | |
1da177e4 | 1052 | } |
1da177e4 LT |
1053 | } |
1054 | ||
1055 | DECLARE_TASKLET_DISABLED(keyboard_tasklet, kbd_bh, 0); | |
1056 | ||
1da177e4 | 1057 | #if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_ALPHA) ||\ |
0b57ee9e AB |
1058 | defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_SPARC) ||\ |
1059 | defined(CONFIG_PARISC) || defined(CONFIG_SUPERH) ||\ | |
3a4e832c HCE |
1060 | (defined(CONFIG_ARM) && defined(CONFIG_KEYBOARD_ATKBD) && !defined(CONFIG_ARCH_RPC)) ||\ |
1061 | defined(CONFIG_AVR32) | |
1da177e4 LT |
1062 | |
1063 | #define HW_RAW(dev) (test_bit(EV_MSC, dev->evbit) && test_bit(MSC_RAW, dev->mscbit) &&\ | |
1064 | ((dev)->id.bustype == BUS_I8042) && ((dev)->id.vendor == 0x0001) && ((dev)->id.product == 0x0001)) | |
1065 | ||
0f5e560e | 1066 | static const unsigned short x86_keycodes[256] = |
1da177e4 LT |
1067 | { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, |
1068 | 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, | |
1069 | 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, | |
1070 | 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, | |
1071 | 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, | |
1072 | 80, 81, 82, 83, 84,118, 86, 87, 88,115,120,119,121,112,123, 92, | |
896cdc7b | 1073 | 284,285,309, 0,312, 91,327,328,329,331,333,335,336,337,338,339, |
1da177e4 LT |
1074 | 367,288,302,304,350, 89,334,326,267,126,268,269,125,347,348,349, |
1075 | 360,261,262,263,268,376,100,101,321,316,373,286,289,102,351,355, | |
72a42f24 HG |
1076 | 103,104,105,275,287,279,258,106,274,107,294,364,358,363,362,361, |
1077 | 291,108,381,281,290,272,292,305,280, 99,112,257,306,359,113,114, | |
1da177e4 LT |
1078 | 264,117,271,374,379,265,266, 93, 94, 95, 85,259,375,260, 90,116, |
1079 | 377,109,111,277,278,282,283,295,296,297,299,300,301,293,303,307, | |
1080 | 308,310,313,314,315,317,318,319,320,357,322,323,324,325,276,330, | |
1081 | 332,340,365,342,343,344,345,346,356,270,341,368,369,370,371,372 }; | |
1082 | ||
0b57ee9e | 1083 | #ifdef CONFIG_SPARC |
e0785572 | 1084 | static int sparc_l1_a_state; |
1da177e4 LT |
1085 | extern void sun_do_break(void); |
1086 | #endif | |
1087 | ||
fe1e8604 | 1088 | static int emulate_raw(struct vc_data *vc, unsigned int keycode, |
1da177e4 LT |
1089 | unsigned char up_flag) |
1090 | { | |
896cdc7b | 1091 | int code; |
1da177e4 LT |
1092 | |
1093 | switch (keycode) { | |
896cdc7b | 1094 | |
e0785572 DT |
1095 | case KEY_PAUSE: |
1096 | put_queue(vc, 0xe1); | |
1097 | put_queue(vc, 0x1d | up_flag); | |
1098 | put_queue(vc, 0x45 | up_flag); | |
1099 | break; | |
896cdc7b | 1100 | |
e0785572 DT |
1101 | case KEY_HANGEUL: |
1102 | if (!up_flag) | |
1103 | put_queue(vc, 0xf2); | |
1104 | break; | |
1da177e4 | 1105 | |
e0785572 DT |
1106 | case KEY_HANJA: |
1107 | if (!up_flag) | |
1108 | put_queue(vc, 0xf1); | |
1109 | break; | |
896cdc7b | 1110 | |
e0785572 DT |
1111 | case KEY_SYSRQ: |
1112 | /* | |
1113 | * Real AT keyboards (that's what we're trying | |
1114 | * to emulate here emit 0xe0 0x2a 0xe0 0x37 when | |
1115 | * pressing PrtSc/SysRq alone, but simply 0x54 | |
1116 | * when pressing Alt+PrtSc/SysRq. | |
1117 | */ | |
1118 | if (test_bit(KEY_LEFTALT, key_down) || | |
1119 | test_bit(KEY_RIGHTALT, key_down)) { | |
1120 | put_queue(vc, 0x54 | up_flag); | |
1121 | } else { | |
1122 | put_queue(vc, 0xe0); | |
1123 | put_queue(vc, 0x2a | up_flag); | |
1124 | put_queue(vc, 0xe0); | |
1125 | put_queue(vc, 0x37 | up_flag); | |
1126 | } | |
1127 | break; | |
1da177e4 | 1128 | |
e0785572 DT |
1129 | default: |
1130 | if (keycode > 255) | |
1131 | return -1; | |
1da177e4 | 1132 | |
e0785572 DT |
1133 | code = x86_keycodes[keycode]; |
1134 | if (!code) | |
1135 | return -1; | |
1da177e4 | 1136 | |
e0785572 DT |
1137 | if (code & 0x100) |
1138 | put_queue(vc, 0xe0); | |
1139 | put_queue(vc, (code & 0x7f) | up_flag); | |
1140 | ||
1141 | break; | |
1da177e4 LT |
1142 | } |
1143 | ||
1144 | return 0; | |
1145 | } | |
1146 | ||
1147 | #else | |
1148 | ||
1149 | #define HW_RAW(dev) 0 | |
1150 | ||
1da177e4 LT |
1151 | static int emulate_raw(struct vc_data *vc, unsigned int keycode, unsigned char up_flag) |
1152 | { | |
1153 | if (keycode > 127) | |
1154 | return -1; | |
1155 | ||
1156 | put_queue(vc, keycode | up_flag); | |
1157 | return 0; | |
1158 | } | |
1159 | #endif | |
1160 | ||
1161 | static void kbd_rawcode(unsigned char data) | |
1162 | { | |
1163 | struct vc_data *vc = vc_cons[fg_console].d; | |
e0785572 | 1164 | |
0c09b2ac | 1165 | kbd = kbd_table + vc->vc_num; |
1da177e4 LT |
1166 | if (kbd->kbdmode == VC_RAW) |
1167 | put_queue(vc, data); | |
1168 | } | |
1169 | ||
7d12e780 | 1170 | static void kbd_keycode(unsigned int keycode, int down, int hw_raw) |
1da177e4 LT |
1171 | { |
1172 | struct vc_data *vc = vc_cons[fg_console].d; | |
1173 | unsigned short keysym, *key_map; | |
e0785572 DT |
1174 | unsigned char type; |
1175 | bool raw_mode; | |
1da177e4 LT |
1176 | struct tty_struct *tty; |
1177 | int shift_final; | |
41ab4396 | 1178 | struct keyboard_notifier_param param = { .vc = vc, .value = keycode, .down = down }; |
e0785572 | 1179 | int rc; |
1da177e4 | 1180 | |
8ce73264 | 1181 | tty = vc->port.tty; |
1da177e4 LT |
1182 | |
1183 | if (tty && (!tty->driver_data)) { | |
1184 | /* No driver data? Strange. Okay we fix it then. */ | |
1185 | tty->driver_data = vc; | |
1186 | } | |
1187 | ||
0c09b2ac | 1188 | kbd = kbd_table + vc->vc_num; |
1da177e4 | 1189 | |
0b57ee9e | 1190 | #ifdef CONFIG_SPARC |
1da177e4 LT |
1191 | if (keycode == KEY_STOP) |
1192 | sparc_l1_a_state = down; | |
1193 | #endif | |
1194 | ||
1195 | rep = (down == 2); | |
1196 | ||
e0785572 DT |
1197 | raw_mode = (kbd->kbdmode == VC_RAW); |
1198 | if (raw_mode && !hw_raw) | |
1da177e4 | 1199 | if (emulate_raw(vc, keycode, !down << 7)) |
9e35d206 | 1200 | if (keycode < BTN_MISC && printk_ratelimit()) |
9272e9a2 DT |
1201 | pr_warning("can't emulate rawmode for keycode %d\n", |
1202 | keycode); | |
1da177e4 | 1203 | |
0b57ee9e | 1204 | #ifdef CONFIG_SPARC |
1da177e4 | 1205 | if (keycode == KEY_A && sparc_l1_a_state) { |
e0785572 | 1206 | sparc_l1_a_state = false; |
1da177e4 LT |
1207 | sun_do_break(); |
1208 | } | |
1209 | #endif | |
1210 | ||
1211 | if (kbd->kbdmode == VC_MEDIUMRAW) { | |
1212 | /* | |
1213 | * This is extended medium raw mode, with keys above 127 | |
1214 | * encoded as 0, high 7 bits, low 7 bits, with the 0 bearing | |
1215 | * the 'up' flag if needed. 0 is reserved, so this shouldn't | |
1216 | * interfere with anything else. The two bytes after 0 will | |
1217 | * always have the up flag set not to interfere with older | |
1218 | * applications. This allows for 16384 different keycodes, | |
1219 | * which should be enough. | |
1220 | */ | |
1221 | if (keycode < 128) { | |
1222 | put_queue(vc, keycode | (!down << 7)); | |
1223 | } else { | |
1224 | put_queue(vc, !down << 7); | |
1225 | put_queue(vc, (keycode >> 7) | 0x80); | |
1226 | put_queue(vc, keycode | 0x80); | |
1227 | } | |
e0785572 | 1228 | raw_mode = true; |
1da177e4 LT |
1229 | } |
1230 | ||
1231 | if (down) | |
1232 | set_bit(keycode, key_down); | |
1233 | else | |
1234 | clear_bit(keycode, key_down); | |
1235 | ||
fe1e8604 DT |
1236 | if (rep && |
1237 | (!vc_kbd_mode(kbd, VC_REPEAT) || | |
f34d7a5b | 1238 | (tty && !L_ECHO(tty) && tty_chars_in_buffer(tty)))) { |
1da177e4 LT |
1239 | /* |
1240 | * Don't repeat a key if the input buffers are not empty and the | |
fe1e8604 | 1241 | * characters get aren't echoed locally. This makes key repeat |
1da177e4 LT |
1242 | * usable with slow applications and under heavy loads. |
1243 | */ | |
1244 | return; | |
1245 | } | |
1246 | ||
41ab4396 | 1247 | param.shift = shift_final = (shift_state | kbd->slockstate) ^ kbd->lockstate; |
0beb4f6f | 1248 | param.ledstate = kbd->ledflagstate; |
1da177e4 LT |
1249 | key_map = key_maps[shift_final]; |
1250 | ||
e0785572 DT |
1251 | rc = atomic_notifier_call_chain(&keyboard_notifier_list, |
1252 | KBD_KEYCODE, ¶m); | |
1253 | if (rc == NOTIFY_STOP || !key_map) { | |
1254 | atomic_notifier_call_chain(&keyboard_notifier_list, | |
1255 | KBD_UNBOUND_KEYCODE, ¶m); | |
1da177e4 LT |
1256 | compute_shiftstate(); |
1257 | kbd->slockstate = 0; | |
1258 | return; | |
1259 | } | |
1260 | ||
e0785572 | 1261 | if (keycode < NR_KEYS) |
b9ec4e10 | 1262 | keysym = key_map[keycode]; |
e0785572 DT |
1263 | else if (keycode >= KEY_BRL_DOT1 && keycode <= KEY_BRL_DOT8) |
1264 | keysym = U(K(KT_BRL, keycode - KEY_BRL_DOT1 + 1)); | |
1265 | else | |
1266 | return; | |
1da177e4 | 1267 | |
1da177e4 LT |
1268 | type = KTYP(keysym); |
1269 | ||
1270 | if (type < 0xf0) { | |
41ab4396 | 1271 | param.value = keysym; |
e0785572 DT |
1272 | rc = atomic_notifier_call_chain(&keyboard_notifier_list, |
1273 | KBD_UNICODE, ¶m); | |
1274 | if (rc != NOTIFY_STOP) | |
1275 | if (down && !raw_mode) | |
1276 | to_utf8(vc, keysym); | |
1da177e4 LT |
1277 | return; |
1278 | } | |
1279 | ||
1280 | type -= 0xf0; | |
1281 | ||
1da177e4 LT |
1282 | if (type == KT_LETTER) { |
1283 | type = KT_LATIN; | |
1284 | if (vc_kbd_led(kbd, VC_CAPSLOCK)) { | |
1285 | key_map = key_maps[shift_final ^ (1 << KG_SHIFT)]; | |
1286 | if (key_map) | |
1287 | keysym = key_map[keycode]; | |
1288 | } | |
1289 | } | |
41ab4396 | 1290 | |
e0785572 DT |
1291 | param.value = keysym; |
1292 | rc = atomic_notifier_call_chain(&keyboard_notifier_list, | |
1293 | KBD_KEYSYM, ¶m); | |
1294 | if (rc == NOTIFY_STOP) | |
41ab4396 ST |
1295 | return; |
1296 | ||
9fc3de9c | 1297 | if ((raw_mode || kbd->kbdmode == VC_OFF) && type != KT_SPEC && type != KT_SHIFT) |
41ab4396 | 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 | ||
0b7024ac DT |
1327 | static bool kbd_match(struct input_handler *handler, struct input_dev *dev) |
1328 | { | |
1329 | int i; | |
1330 | ||
1331 | if (test_bit(EV_SND, dev->evbit)) | |
1332 | return true; | |
1333 | ||
53c1f764 | 1334 | if (test_bit(EV_KEY, dev->evbit)) { |
0b7024ac DT |
1335 | for (i = KEY_RESERVED; i < BTN_MISC; i++) |
1336 | if (test_bit(i, dev->keybit)) | |
1337 | return true; | |
53c1f764 ST |
1338 | for (i = KEY_BRL_DOT1; i <= KEY_BRL_DOT10; i++) |
1339 | if (test_bit(i, dev->keybit)) | |
1340 | return true; | |
1341 | } | |
0b7024ac DT |
1342 | |
1343 | return false; | |
1344 | } | |
1345 | ||
1da177e4 LT |
1346 | /* |
1347 | * When a keyboard (or other input device) is found, the kbd_connect | |
1348 | * function is called. The function then looks at the device, and if it | |
1349 | * likes it, it can open it and get events from it. In this (kbd_connect) | |
1350 | * function, we should decide which VT to bind that keyboard to initially. | |
1351 | */ | |
5b2a0826 DT |
1352 | static int kbd_connect(struct input_handler *handler, struct input_dev *dev, |
1353 | const struct input_device_id *id) | |
1da177e4 LT |
1354 | { |
1355 | struct input_handle *handle; | |
5b2a0826 | 1356 | int error; |
1da177e4 | 1357 | |
22479e1c DT |
1358 | handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL); |
1359 | if (!handle) | |
5b2a0826 | 1360 | return -ENOMEM; |
1da177e4 LT |
1361 | |
1362 | handle->dev = dev; | |
1363 | handle->handler = handler; | |
fe1e8604 | 1364 | handle->name = "kbd"; |
1da177e4 | 1365 | |
5b2a0826 DT |
1366 | error = input_register_handle(handle); |
1367 | if (error) | |
1368 | goto err_free_handle; | |
1da177e4 | 1369 | |
5b2a0826 DT |
1370 | error = input_open_device(handle); |
1371 | if (error) | |
1372 | goto err_unregister_handle; | |
1373 | ||
1374 | return 0; | |
1375 | ||
1376 | err_unregister_handle: | |
1377 | input_unregister_handle(handle); | |
1378 | err_free_handle: | |
1379 | kfree(handle); | |
1380 | return error; | |
1da177e4 LT |
1381 | } |
1382 | ||
1383 | static void kbd_disconnect(struct input_handle *handle) | |
1384 | { | |
1385 | input_close_device(handle); | |
5b2a0826 | 1386 | input_unregister_handle(handle); |
1da177e4 LT |
1387 | kfree(handle); |
1388 | } | |
1389 | ||
c7e8dc6e DT |
1390 | /* |
1391 | * Start keyboard handler on the new keyboard by refreshing LED state to | |
1392 | * match the rest of the system. | |
1393 | */ | |
1394 | static void kbd_start(struct input_handle *handle) | |
1395 | { | |
c7e8dc6e | 1396 | tasklet_disable(&keyboard_tasklet); |
66d2a595 DT |
1397 | |
1398 | if (ledstate != 0xff) | |
1399 | kbd_update_leds_helper(handle, &ledstate); | |
1400 | ||
c7e8dc6e DT |
1401 | tasklet_enable(&keyboard_tasklet); |
1402 | } | |
1403 | ||
66e66118 | 1404 | static const struct input_device_id kbd_ids[] = { |
1da177e4 LT |
1405 | { |
1406 | .flags = INPUT_DEVICE_ID_MATCH_EVBIT, | |
7b19ada2 | 1407 | .evbit = { BIT_MASK(EV_KEY) }, |
1da177e4 | 1408 | }, |
fe1e8604 | 1409 | |
1da177e4 LT |
1410 | { |
1411 | .flags = INPUT_DEVICE_ID_MATCH_EVBIT, | |
7b19ada2 | 1412 | .evbit = { BIT_MASK(EV_SND) }, |
fe1e8604 | 1413 | }, |
1da177e4 LT |
1414 | |
1415 | { }, /* Terminating entry */ | |
1416 | }; | |
1417 | ||
1418 | MODULE_DEVICE_TABLE(input, kbd_ids); | |
1419 | ||
1420 | static struct input_handler kbd_handler = { | |
1421 | .event = kbd_event, | |
0b7024ac | 1422 | .match = kbd_match, |
1da177e4 LT |
1423 | .connect = kbd_connect, |
1424 | .disconnect = kbd_disconnect, | |
c7e8dc6e | 1425 | .start = kbd_start, |
1da177e4 LT |
1426 | .name = "kbd", |
1427 | .id_table = kbd_ids, | |
1428 | }; | |
1429 | ||
1430 | int __init kbd_init(void) | |
1431 | { | |
1432 | int i; | |
4263cf0f | 1433 | int error; |
1da177e4 | 1434 | |
2b192908 DT |
1435 | for (i = 0; i < MAX_NR_CONSOLES; i++) { |
1436 | kbd_table[i].ledflagstate = KBD_DEFLEDS; | |
1437 | kbd_table[i].default_ledflagstate = KBD_DEFLEDS; | |
1438 | kbd_table[i].ledmode = LED_SHOW_FLAGS; | |
1439 | kbd_table[i].lockstate = KBD_DEFLOCK; | |
1440 | kbd_table[i].slockstate = 0; | |
1441 | kbd_table[i].modeflags = KBD_DEFMODE; | |
2e8ecb9d | 1442 | kbd_table[i].kbdmode = default_utf8 ? VC_UNICODE : VC_XLATE; |
2b192908 | 1443 | } |
1da177e4 | 1444 | |
4263cf0f DT |
1445 | error = input_register_handler(&kbd_handler); |
1446 | if (error) | |
1447 | return error; | |
1da177e4 LT |
1448 | |
1449 | tasklet_enable(&keyboard_tasklet); | |
1450 | tasklet_schedule(&keyboard_tasklet); | |
1451 | ||
1452 | return 0; | |
1453 | } |