Commit | Line | Data |
---|---|---|
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 LT |
135 | static unsigned char shift_down[NR_SHIFT]; /* shift state counters.. */ |
136 | static int dead_key_next; | |
137 | static int npadch = -1; /* -1 or number assembled on pad */ | |
b9ec4e10 | 138 | static unsigned int diacr; |
1da177e4 LT |
139 | static char rep; /* flag telling character repeat */ |
140 | ||
141 | static unsigned char ledstate = 0xff; /* undefined */ | |
142 | static unsigned char ledioctl; | |
143 | ||
144 | static struct ledptr { | |
145 | unsigned int *addr; | |
146 | unsigned int mask; | |
147 | unsigned char valid:1; | |
148 | } ledptrs[3]; | |
149 | ||
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 { | |
178 | unsigned int scancode; | |
179 | unsigned int keycode; | |
180 | int error; | |
181 | }; | |
182 | ||
183 | static int getkeycode_helper(struct input_handle *handle, void *data) | |
184 | { | |
185 | struct getset_keycode_data *d = data; | |
186 | ||
187 | d->error = input_get_keycode(handle->dev, d->scancode, &d->keycode); | |
188 | ||
189 | return d->error == 0; /* stop as soon as we successfully get one */ | |
190 | } | |
191 | ||
1da177e4 LT |
192 | int getkeycode(unsigned int scancode) |
193 | { | |
66d2a595 | 194 | struct getset_keycode_data d = { scancode, 0, -ENODEV }; |
c8e4c772 | 195 | |
66d2a595 | 196 | input_handler_for_each_handle(&kbd_handler, &d, getkeycode_helper); |
1da177e4 | 197 | |
66d2a595 DT |
198 | return d.error ?: d.keycode; |
199 | } | |
200 | ||
201 | static int setkeycode_helper(struct input_handle *handle, void *data) | |
202 | { | |
203 | struct getset_keycode_data *d = data; | |
204 | ||
205 | d->error = input_set_keycode(handle->dev, d->scancode, d->keycode); | |
206 | ||
207 | return d->error == 0; /* stop as soon as we successfully set one */ | |
1da177e4 LT |
208 | } |
209 | ||
210 | int setkeycode(unsigned int scancode, unsigned int keycode) | |
211 | { | |
66d2a595 | 212 | struct getset_keycode_data d = { scancode, keycode, -ENODEV }; |
c8e4c772 | 213 | |
66d2a595 | 214 | input_handler_for_each_handle(&kbd_handler, &d, setkeycode_helper); |
1da177e4 | 215 | |
66d2a595 | 216 | return d.error; |
1da177e4 LT |
217 | } |
218 | ||
219 | /* | |
18f7ad59 DT |
220 | * Making beeps and bells. Note that we prefer beeps to bells, but when |
221 | * shutting the sound off we do both. | |
1da177e4 | 222 | */ |
66d2a595 DT |
223 | |
224 | static int kd_sound_helper(struct input_handle *handle, void *data) | |
1da177e4 | 225 | { |
66d2a595 DT |
226 | unsigned int *hz = data; |
227 | struct input_dev *dev = handle->dev; | |
1da177e4 | 228 | |
66d2a595 | 229 | if (test_bit(EV_SND, dev->evbit)) { |
18f7ad59 | 230 | if (test_bit(SND_TONE, dev->sndbit)) { |
66d2a595 | 231 | input_inject_event(handle, EV_SND, SND_TONE, *hz); |
18f7ad59 DT |
232 | if (*hz) |
233 | return 0; | |
234 | } | |
235 | if (test_bit(SND_BELL, dev->sndbit)) | |
66d2a595 | 236 | input_inject_event(handle, EV_SND, SND_BELL, *hz ? 1 : 0); |
1da177e4 | 237 | } |
66d2a595 DT |
238 | |
239 | return 0; | |
240 | } | |
241 | ||
242 | static void kd_nosound(unsigned long ignored) | |
243 | { | |
244 | static unsigned int zero; | |
245 | ||
246 | input_handler_for_each_handle(&kbd_handler, &zero, kd_sound_helper); | |
1da177e4 LT |
247 | } |
248 | ||
8d06afab | 249 | static DEFINE_TIMER(kd_mksound_timer, kd_nosound, 0, 0); |
1da177e4 LT |
250 | |
251 | void kd_mksound(unsigned int hz, unsigned int ticks) | |
252 | { | |
66d2a595 | 253 | del_timer_sync(&kd_mksound_timer); |
1da177e4 | 254 | |
66d2a595 | 255 | input_handler_for_each_handle(&kbd_handler, &hz, kd_sound_helper); |
1da177e4 | 256 | |
66d2a595 DT |
257 | if (hz && ticks) |
258 | mod_timer(&kd_mksound_timer, jiffies + ticks); | |
1da177e4 | 259 | } |
f7511d5f | 260 | EXPORT_SYMBOL(kd_mksound); |
1da177e4 LT |
261 | |
262 | /* | |
263 | * Setting the keyboard rate. | |
264 | */ | |
265 | ||
66d2a595 | 266 | static int kbd_rate_helper(struct input_handle *handle, void *data) |
1da177e4 | 267 | { |
66d2a595 DT |
268 | struct input_dev *dev = handle->dev; |
269 | struct kbd_repeat *rep = data; | |
270 | ||
271 | if (test_bit(EV_REP, dev->evbit)) { | |
272 | ||
273 | if (rep[0].delay > 0) | |
274 | input_inject_event(handle, | |
275 | EV_REP, REP_DELAY, rep[0].delay); | |
276 | if (rep[0].period > 0) | |
277 | input_inject_event(handle, | |
278 | EV_REP, REP_PERIOD, rep[0].period); | |
279 | ||
280 | rep[1].delay = dev->rep[REP_DELAY]; | |
281 | rep[1].period = dev->rep[REP_PERIOD]; | |
1da177e4 | 282 | } |
66d2a595 DT |
283 | |
284 | return 0; | |
285 | } | |
286 | ||
287 | int kbd_rate(struct kbd_repeat *rep) | |
288 | { | |
289 | struct kbd_repeat data[2] = { *rep }; | |
290 | ||
291 | input_handler_for_each_handle(&kbd_handler, data, kbd_rate_helper); | |
292 | *rep = data[1]; /* Copy currently used settings */ | |
293 | ||
1da177e4 LT |
294 | return 0; |
295 | } | |
296 | ||
297 | /* | |
298 | * Helper Functions. | |
299 | */ | |
300 | static void put_queue(struct vc_data *vc, int ch) | |
301 | { | |
302 | struct tty_struct *tty = vc->vc_tty; | |
303 | ||
304 | if (tty) { | |
305 | tty_insert_flip_char(tty, ch, 0); | |
306 | con_schedule_flip(tty); | |
307 | } | |
308 | } | |
309 | ||
310 | static void puts_queue(struct vc_data *vc, char *cp) | |
311 | { | |
312 | struct tty_struct *tty = vc->vc_tty; | |
313 | ||
314 | if (!tty) | |
315 | return; | |
316 | ||
317 | while (*cp) { | |
318 | tty_insert_flip_char(tty, *cp, 0); | |
319 | cp++; | |
320 | } | |
321 | con_schedule_flip(tty); | |
322 | } | |
323 | ||
324 | static void applkey(struct vc_data *vc, int key, char mode) | |
325 | { | |
326 | static char buf[] = { 0x1b, 'O', 0x00, 0x00 }; | |
327 | ||
328 | buf[1] = (mode ? 'O' : '['); | |
329 | buf[2] = key; | |
330 | puts_queue(vc, buf); | |
331 | } | |
332 | ||
333 | /* | |
334 | * Many other routines do put_queue, but I think either | |
335 | * they produce ASCII, or they produce some user-assigned | |
336 | * string, and in both cases we might assume that it is | |
759448f4 | 337 | * in utf-8 already. |
1da177e4 | 338 | */ |
759448f4 | 339 | static void to_utf8(struct vc_data *vc, uint c) |
1da177e4 LT |
340 | { |
341 | if (c < 0x80) | |
342 | /* 0******* */ | |
343 | put_queue(vc, c); | |
fe1e8604 | 344 | else if (c < 0x800) { |
1da177e4 | 345 | /* 110***** 10****** */ |
fe1e8604 | 346 | put_queue(vc, 0xc0 | (c >> 6)); |
1da177e4 | 347 | put_queue(vc, 0x80 | (c & 0x3f)); |
759448f4 JE |
348 | } else if (c < 0x10000) { |
349 | if (c >= 0xD800 && c < 0xE000) | |
350 | return; | |
351 | if (c == 0xFFFF) | |
352 | return; | |
1da177e4 LT |
353 | /* 1110**** 10****** 10****** */ |
354 | put_queue(vc, 0xe0 | (c >> 12)); | |
355 | put_queue(vc, 0x80 | ((c >> 6) & 0x3f)); | |
356 | put_queue(vc, 0x80 | (c & 0x3f)); | |
759448f4 JE |
357 | } else if (c < 0x110000) { |
358 | /* 11110*** 10****** 10****** 10****** */ | |
359 | put_queue(vc, 0xf0 | (c >> 18)); | |
360 | put_queue(vc, 0x80 | ((c >> 12) & 0x3f)); | |
361 | put_queue(vc, 0x80 | ((c >> 6) & 0x3f)); | |
362 | put_queue(vc, 0x80 | (c & 0x3f)); | |
fe1e8604 | 363 | } |
1da177e4 LT |
364 | } |
365 | ||
fe1e8604 | 366 | /* |
1da177e4 LT |
367 | * Called after returning from RAW mode or when changing consoles - recompute |
368 | * shift_down[] and shift_state from key_down[] maybe called when keymap is | |
369 | * undefined, so that shiftkey release is seen | |
370 | */ | |
371 | void compute_shiftstate(void) | |
372 | { | |
373 | unsigned int i, j, k, sym, val; | |
374 | ||
375 | shift_state = 0; | |
376 | memset(shift_down, 0, sizeof(shift_down)); | |
fe1e8604 | 377 | |
1da177e4 LT |
378 | for (i = 0; i < ARRAY_SIZE(key_down); i++) { |
379 | ||
380 | if (!key_down[i]) | |
381 | continue; | |
382 | ||
383 | k = i * BITS_PER_LONG; | |
384 | ||
385 | for (j = 0; j < BITS_PER_LONG; j++, k++) { | |
386 | ||
387 | if (!test_bit(k, key_down)) | |
388 | continue; | |
389 | ||
390 | sym = U(key_maps[0][k]); | |
391 | if (KTYP(sym) != KT_SHIFT && KTYP(sym) != KT_SLOCK) | |
392 | continue; | |
393 | ||
394 | val = KVAL(sym); | |
395 | if (val == KVAL(K_CAPSSHIFT)) | |
396 | val = KVAL(K_SHIFT); | |
397 | ||
398 | shift_down[val]++; | |
399 | shift_state |= (1 << val); | |
400 | } | |
401 | } | |
402 | } | |
403 | ||
404 | /* | |
405 | * We have a combining character DIACR here, followed by the character CH. | |
406 | * If the combination occurs in the table, return the corresponding value. | |
407 | * Otherwise, if CH is a space or equals DIACR, return DIACR. | |
408 | * Otherwise, conclude that DIACR was not combining after all, | |
409 | * queue it and return CH. | |
410 | */ | |
b9ec4e10 | 411 | static unsigned int handle_diacr(struct vc_data *vc, unsigned int ch) |
1da177e4 | 412 | { |
b9ec4e10 | 413 | unsigned int d = diacr; |
1da177e4 LT |
414 | unsigned int i; |
415 | ||
416 | diacr = 0; | |
417 | ||
b9ec4e10 ST |
418 | if ((d & ~0xff) == BRL_UC_ROW) { |
419 | if ((ch & ~0xff) == BRL_UC_ROW) | |
420 | return d | ch; | |
421 | } else { | |
422 | for (i = 0; i < accent_table_size; i++) | |
423 | if (accent_table[i].diacr == d && accent_table[i].base == ch) | |
424 | return accent_table[i].result; | |
1da177e4 LT |
425 | } |
426 | ||
b9ec4e10 | 427 | if (ch == ' ' || ch == (BRL_UC_ROW|0) || ch == d) |
1da177e4 LT |
428 | return d; |
429 | ||
b9ec4e10 | 430 | if (kbd->kbdmode == VC_UNICODE) |
04c71976 ST |
431 | to_utf8(vc, d); |
432 | else { | |
433 | int c = conv_uni_to_8bit(d); | |
434 | if (c != -1) | |
435 | put_queue(vc, c); | |
436 | } | |
b9ec4e10 | 437 | |
1da177e4 LT |
438 | return ch; |
439 | } | |
440 | ||
441 | /* | |
442 | * Special function handlers | |
443 | */ | |
7d12e780 | 444 | static void fn_enter(struct vc_data *vc) |
1da177e4 LT |
445 | { |
446 | if (diacr) { | |
b9ec4e10 | 447 | if (kbd->kbdmode == VC_UNICODE) |
04c71976 ST |
448 | to_utf8(vc, diacr); |
449 | else { | |
450 | int c = conv_uni_to_8bit(diacr); | |
451 | if (c != -1) | |
452 | put_queue(vc, c); | |
453 | } | |
1da177e4 LT |
454 | diacr = 0; |
455 | } | |
456 | put_queue(vc, 13); | |
457 | if (vc_kbd_mode(kbd, VC_CRLF)) | |
458 | put_queue(vc, 10); | |
459 | } | |
460 | ||
7d12e780 | 461 | static void fn_caps_toggle(struct vc_data *vc) |
1da177e4 LT |
462 | { |
463 | if (rep) | |
464 | return; | |
465 | chg_vc_kbd_led(kbd, VC_CAPSLOCK); | |
466 | } | |
467 | ||
7d12e780 | 468 | static void fn_caps_on(struct vc_data *vc) |
1da177e4 LT |
469 | { |
470 | if (rep) | |
471 | return; | |
472 | set_vc_kbd_led(kbd, VC_CAPSLOCK); | |
473 | } | |
474 | ||
7d12e780 | 475 | static void fn_show_ptregs(struct vc_data *vc) |
1da177e4 | 476 | { |
7d12e780 | 477 | struct pt_regs *regs = get_irq_regs(); |
1da177e4 LT |
478 | if (regs) |
479 | show_regs(regs); | |
480 | } | |
481 | ||
7d12e780 | 482 | static void fn_hold(struct vc_data *vc) |
1da177e4 LT |
483 | { |
484 | struct tty_struct *tty = vc->vc_tty; | |
485 | ||
486 | if (rep || !tty) | |
487 | return; | |
488 | ||
489 | /* | |
490 | * Note: SCROLLOCK will be set (cleared) by stop_tty (start_tty); | |
491 | * these routines are also activated by ^S/^Q. | |
492 | * (And SCROLLOCK can also be set by the ioctl KDSKBLED.) | |
493 | */ | |
494 | if (tty->stopped) | |
495 | start_tty(tty); | |
496 | else | |
497 | stop_tty(tty); | |
498 | } | |
499 | ||
7d12e780 | 500 | static void fn_num(struct vc_data *vc) |
1da177e4 LT |
501 | { |
502 | if (vc_kbd_mode(kbd,VC_APPLIC)) | |
503 | applkey(vc, 'P', 1); | |
504 | else | |
7d12e780 | 505 | fn_bare_num(vc); |
1da177e4 LT |
506 | } |
507 | ||
508 | /* | |
509 | * Bind this to Shift-NumLock if you work in application keypad mode | |
510 | * but want to be able to change the NumLock flag. | |
511 | * Bind this to NumLock if you prefer that the NumLock key always | |
512 | * changes the NumLock flag. | |
513 | */ | |
7d12e780 | 514 | static void fn_bare_num(struct vc_data *vc) |
1da177e4 LT |
515 | { |
516 | if (!rep) | |
517 | chg_vc_kbd_led(kbd, VC_NUMLOCK); | |
518 | } | |
519 | ||
7d12e780 | 520 | static void fn_lastcons(struct vc_data *vc) |
1da177e4 LT |
521 | { |
522 | /* switch to the last used console, ChN */ | |
523 | set_console(last_console); | |
524 | } | |
525 | ||
7d12e780 | 526 | static void fn_dec_console(struct vc_data *vc) |
1da177e4 LT |
527 | { |
528 | int i, cur = fg_console; | |
529 | ||
530 | /* Currently switching? Queue this next switch relative to that. */ | |
531 | if (want_console != -1) | |
532 | cur = want_console; | |
533 | ||
fe1e8604 | 534 | for (i = cur - 1; i != cur; i--) { |
1da177e4 | 535 | if (i == -1) |
fe1e8604 | 536 | i = MAX_NR_CONSOLES - 1; |
1da177e4 LT |
537 | if (vc_cons_allocated(i)) |
538 | break; | |
539 | } | |
540 | set_console(i); | |
541 | } | |
542 | ||
7d12e780 | 543 | static void fn_inc_console(struct vc_data *vc) |
1da177e4 LT |
544 | { |
545 | int i, cur = fg_console; | |
546 | ||
547 | /* Currently switching? Queue this next switch relative to that. */ | |
548 | if (want_console != -1) | |
549 | cur = want_console; | |
550 | ||
551 | for (i = cur+1; i != cur; i++) { | |
552 | if (i == MAX_NR_CONSOLES) | |
553 | i = 0; | |
554 | if (vc_cons_allocated(i)) | |
555 | break; | |
556 | } | |
557 | set_console(i); | |
558 | } | |
559 | ||
7d12e780 | 560 | static void fn_send_intr(struct vc_data *vc) |
1da177e4 LT |
561 | { |
562 | struct tty_struct *tty = vc->vc_tty; | |
563 | ||
564 | if (!tty) | |
565 | return; | |
566 | tty_insert_flip_char(tty, 0, TTY_BREAK); | |
567 | con_schedule_flip(tty); | |
568 | } | |
569 | ||
7d12e780 | 570 | static void fn_scroll_forw(struct vc_data *vc) |
1da177e4 LT |
571 | { |
572 | scrollfront(vc, 0); | |
573 | } | |
574 | ||
7d12e780 | 575 | static void fn_scroll_back(struct vc_data *vc) |
1da177e4 LT |
576 | { |
577 | scrollback(vc, 0); | |
578 | } | |
579 | ||
7d12e780 | 580 | static void fn_show_mem(struct vc_data *vc) |
1da177e4 LT |
581 | { |
582 | show_mem(); | |
583 | } | |
584 | ||
7d12e780 | 585 | static void fn_show_state(struct vc_data *vc) |
1da177e4 LT |
586 | { |
587 | show_state(); | |
588 | } | |
589 | ||
7d12e780 | 590 | static void fn_boot_it(struct vc_data *vc) |
1da177e4 LT |
591 | { |
592 | ctrl_alt_del(); | |
593 | } | |
594 | ||
7d12e780 | 595 | static void fn_compose(struct vc_data *vc) |
1da177e4 LT |
596 | { |
597 | dead_key_next = 1; | |
598 | } | |
599 | ||
7d12e780 | 600 | static void fn_spawn_con(struct vc_data *vc) |
1da177e4 | 601 | { |
81af8d67 EB |
602 | spin_lock(&vt_spawn_con.lock); |
603 | if (vt_spawn_con.pid) | |
604 | if (kill_pid(vt_spawn_con.pid, vt_spawn_con.sig, 1)) { | |
605 | put_pid(vt_spawn_con.pid); | |
606 | vt_spawn_con.pid = NULL; | |
607 | } | |
608 | spin_unlock(&vt_spawn_con.lock); | |
1da177e4 LT |
609 | } |
610 | ||
7d12e780 | 611 | static void fn_SAK(struct vc_data *vc) |
1da177e4 | 612 | { |
8b6312f4 | 613 | struct work_struct *SAK_work = &vc_cons[fg_console].SAK_work; |
8b6312f4 | 614 | schedule_work(SAK_work); |
1da177e4 LT |
615 | } |
616 | ||
7d12e780 | 617 | static void fn_null(struct vc_data *vc) |
1da177e4 LT |
618 | { |
619 | compute_shiftstate(); | |
620 | } | |
621 | ||
622 | /* | |
623 | * Special key handlers | |
624 | */ | |
7d12e780 | 625 | static void k_ignore(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
626 | { |
627 | } | |
628 | ||
7d12e780 | 629 | static void k_spec(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
630 | { |
631 | if (up_flag) | |
632 | return; | |
633 | if (value >= ARRAY_SIZE(fn_handler)) | |
634 | return; | |
fe1e8604 DT |
635 | if ((kbd->kbdmode == VC_RAW || |
636 | kbd->kbdmode == VC_MEDIUMRAW) && | |
1da177e4 LT |
637 | value != KVAL(K_SAK)) |
638 | return; /* SAK is allowed even in raw mode */ | |
7d12e780 | 639 | fn_handler[value](vc); |
1da177e4 LT |
640 | } |
641 | ||
7d12e780 | 642 | static void k_lowercase(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 643 | { |
9272e9a2 | 644 | pr_err("k_lowercase was called - impossible\n"); |
1da177e4 LT |
645 | } |
646 | ||
7d12e780 | 647 | static void k_unicode(struct vc_data *vc, unsigned int value, char up_flag) |
1da177e4 LT |
648 | { |
649 | if (up_flag) | |
650 | return; /* no action, if this is a key release */ | |
651 | ||
652 | if (diacr) | |
653 | value = handle_diacr(vc, value); | |
654 | ||
655 | if (dead_key_next) { | |
656 | dead_key_next = 0; | |
657 | diacr = value; | |
658 | return; | |
659 | } | |
b9ec4e10 | 660 | if (kbd->kbdmode == VC_UNICODE) |
04c71976 ST |
661 | to_utf8(vc, value); |
662 | else { | |
663 | int c = conv_uni_to_8bit(value); | |
664 | if (c != -1) | |
665 | put_queue(vc, c); | |
666 | } | |
1da177e4 LT |
667 | } |
668 | ||
669 | /* | |
670 | * Handle dead key. Note that we now may have several | |
671 | * dead keys modifying the same character. Very useful | |
672 | * for Vietnamese. | |
673 | */ | |
7d12e780 | 674 | static void k_deadunicode(struct vc_data *vc, unsigned int value, char up_flag) |
1da177e4 LT |
675 | { |
676 | if (up_flag) | |
677 | return; | |
678 | diacr = (diacr ? handle_diacr(vc, value) : value); | |
679 | } | |
680 | ||
7d12e780 | 681 | static void k_self(struct vc_data *vc, unsigned char value, char up_flag) |
b9ec4e10 | 682 | { |
d2187ebd | 683 | k_unicode(vc, conv_8bit_to_uni(value), up_flag); |
b9ec4e10 ST |
684 | } |
685 | ||
7d12e780 | 686 | static void k_dead2(struct vc_data *vc, unsigned char value, char up_flag) |
b9ec4e10 | 687 | { |
7d12e780 | 688 | k_deadunicode(vc, value, up_flag); |
b9ec4e10 ST |
689 | } |
690 | ||
1da177e4 LT |
691 | /* |
692 | * Obsolete - for backwards compatibility only | |
693 | */ | |
7d12e780 | 694 | static void k_dead(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 695 | { |
0f5e560e | 696 | static const unsigned char ret_diacr[NR_DEAD] = {'`', '\'', '^', '~', '"', ',' }; |
1da177e4 | 697 | value = ret_diacr[value]; |
7d12e780 | 698 | k_deadunicode(vc, value, up_flag); |
1da177e4 LT |
699 | } |
700 | ||
7d12e780 | 701 | static void k_cons(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
702 | { |
703 | if (up_flag) | |
704 | return; | |
705 | set_console(value); | |
706 | } | |
707 | ||
7d12e780 | 708 | static void k_fn(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
709 | { |
710 | unsigned v; | |
711 | ||
712 | if (up_flag) | |
713 | return; | |
714 | v = value; | |
715 | if (v < ARRAY_SIZE(func_table)) { | |
716 | if (func_table[value]) | |
717 | puts_queue(vc, func_table[value]); | |
718 | } else | |
9272e9a2 | 719 | pr_err("k_fn called with value=%d\n", value); |
1da177e4 LT |
720 | } |
721 | ||
7d12e780 | 722 | static void k_cur(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 723 | { |
e52b29c2 | 724 | static const char cur_chars[] = "BDCA"; |
1da177e4 LT |
725 | |
726 | if (up_flag) | |
727 | return; | |
728 | applkey(vc, cur_chars[value], vc_kbd_mode(kbd, VC_CKMODE)); | |
729 | } | |
730 | ||
7d12e780 | 731 | static void k_pad(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 732 | { |
0f5e560e AM |
733 | static const char pad_chars[] = "0123456789+-*/\015,.?()#"; |
734 | static const char app_map[] = "pqrstuvwxylSRQMnnmPQS"; | |
1da177e4 LT |
735 | |
736 | if (up_flag) | |
737 | return; /* no action, if this is a key release */ | |
738 | ||
739 | /* kludge... shift forces cursor/number keys */ | |
740 | if (vc_kbd_mode(kbd, VC_APPLIC) && !shift_down[KG_SHIFT]) { | |
741 | applkey(vc, app_map[value], 1); | |
742 | return; | |
743 | } | |
744 | ||
745 | if (!vc_kbd_led(kbd, VC_NUMLOCK)) | |
746 | switch (value) { | |
747 | case KVAL(K_PCOMMA): | |
748 | case KVAL(K_PDOT): | |
7d12e780 | 749 | k_fn(vc, KVAL(K_REMOVE), 0); |
1da177e4 LT |
750 | return; |
751 | case KVAL(K_P0): | |
7d12e780 | 752 | k_fn(vc, KVAL(K_INSERT), 0); |
1da177e4 LT |
753 | return; |
754 | case KVAL(K_P1): | |
7d12e780 | 755 | k_fn(vc, KVAL(K_SELECT), 0); |
1da177e4 LT |
756 | return; |
757 | case KVAL(K_P2): | |
7d12e780 | 758 | k_cur(vc, KVAL(K_DOWN), 0); |
1da177e4 LT |
759 | return; |
760 | case KVAL(K_P3): | |
7d12e780 | 761 | k_fn(vc, KVAL(K_PGDN), 0); |
1da177e4 LT |
762 | return; |
763 | case KVAL(K_P4): | |
7d12e780 | 764 | k_cur(vc, KVAL(K_LEFT), 0); |
1da177e4 LT |
765 | return; |
766 | case KVAL(K_P6): | |
7d12e780 | 767 | k_cur(vc, KVAL(K_RIGHT), 0); |
1da177e4 LT |
768 | return; |
769 | case KVAL(K_P7): | |
7d12e780 | 770 | k_fn(vc, KVAL(K_FIND), 0); |
1da177e4 LT |
771 | return; |
772 | case KVAL(K_P8): | |
7d12e780 | 773 | k_cur(vc, KVAL(K_UP), 0); |
1da177e4 LT |
774 | return; |
775 | case KVAL(K_P9): | |
7d12e780 | 776 | k_fn(vc, KVAL(K_PGUP), 0); |
1da177e4 LT |
777 | return; |
778 | case KVAL(K_P5): | |
779 | applkey(vc, 'G', vc_kbd_mode(kbd, VC_APPLIC)); | |
780 | return; | |
781 | } | |
782 | ||
783 | put_queue(vc, pad_chars[value]); | |
784 | if (value == KVAL(K_PENTER) && vc_kbd_mode(kbd, VC_CRLF)) | |
785 | put_queue(vc, 10); | |
786 | } | |
787 | ||
7d12e780 | 788 | static void k_shift(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
789 | { |
790 | int old_state = shift_state; | |
791 | ||
792 | if (rep) | |
793 | return; | |
794 | /* | |
795 | * Mimic typewriter: | |
796 | * a CapsShift key acts like Shift but undoes CapsLock | |
797 | */ | |
798 | if (value == KVAL(K_CAPSSHIFT)) { | |
799 | value = KVAL(K_SHIFT); | |
800 | if (!up_flag) | |
801 | clr_vc_kbd_led(kbd, VC_CAPSLOCK); | |
802 | } | |
803 | ||
804 | if (up_flag) { | |
805 | /* | |
806 | * handle the case that two shift or control | |
807 | * keys are depressed simultaneously | |
808 | */ | |
809 | if (shift_down[value]) | |
810 | shift_down[value]--; | |
811 | } else | |
812 | shift_down[value]++; | |
813 | ||
814 | if (shift_down[value]) | |
815 | shift_state |= (1 << value); | |
816 | else | |
817 | shift_state &= ~(1 << value); | |
818 | ||
819 | /* kludge */ | |
820 | if (up_flag && shift_state != old_state && npadch != -1) { | |
821 | if (kbd->kbdmode == VC_UNICODE) | |
759448f4 | 822 | to_utf8(vc, npadch); |
1da177e4 LT |
823 | else |
824 | put_queue(vc, npadch & 0xff); | |
825 | npadch = -1; | |
826 | } | |
827 | } | |
828 | ||
7d12e780 | 829 | static void k_meta(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
830 | { |
831 | if (up_flag) | |
832 | return; | |
833 | ||
834 | if (vc_kbd_mode(kbd, VC_META)) { | |
835 | put_queue(vc, '\033'); | |
836 | put_queue(vc, value); | |
837 | } else | |
838 | put_queue(vc, value | 0x80); | |
839 | } | |
840 | ||
7d12e780 | 841 | static void k_ascii(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
842 | { |
843 | int base; | |
844 | ||
845 | if (up_flag) | |
846 | return; | |
847 | ||
848 | if (value < 10) { | |
849 | /* decimal input of code, while Alt depressed */ | |
850 | base = 10; | |
851 | } else { | |
852 | /* hexadecimal input of code, while AltGr depressed */ | |
853 | value -= 10; | |
854 | base = 16; | |
855 | } | |
856 | ||
857 | if (npadch == -1) | |
858 | npadch = value; | |
859 | else | |
860 | npadch = npadch * base + value; | |
861 | } | |
862 | ||
7d12e780 | 863 | static void k_lock(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
864 | { |
865 | if (up_flag || rep) | |
866 | return; | |
867 | chg_vc_kbd_lock(kbd, value); | |
868 | } | |
869 | ||
7d12e780 | 870 | static void k_slock(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 871 | { |
7d12e780 | 872 | k_shift(vc, value, up_flag); |
1da177e4 LT |
873 | if (up_flag || rep) |
874 | return; | |
875 | chg_vc_kbd_slock(kbd, value); | |
876 | /* try to make Alt, oops, AltGr and such work */ | |
877 | if (!key_maps[kbd->lockstate ^ kbd->slockstate]) { | |
878 | kbd->slockstate = 0; | |
879 | chg_vc_kbd_slock(kbd, value); | |
880 | } | |
881 | } | |
882 | ||
b9ec4e10 | 883 | /* by default, 300ms interval for combination release */ |
77426d72 ST |
884 | static unsigned brl_timeout = 300; |
885 | MODULE_PARM_DESC(brl_timeout, "Braille keys release delay in ms (0 for commit on first key release)"); | |
886 | module_param(brl_timeout, uint, 0644); | |
887 | ||
888 | static unsigned brl_nbchords = 1; | |
889 | MODULE_PARM_DESC(brl_nbchords, "Number of chords that produce a braille pattern (0 for dead chords)"); | |
890 | module_param(brl_nbchords, uint, 0644); | |
891 | ||
7d12e780 | 892 | static void k_brlcommit(struct vc_data *vc, unsigned int pattern, char up_flag) |
77426d72 ST |
893 | { |
894 | static unsigned long chords; | |
895 | static unsigned committed; | |
896 | ||
897 | if (!brl_nbchords) | |
7d12e780 | 898 | k_deadunicode(vc, BRL_UC_ROW | pattern, up_flag); |
77426d72 ST |
899 | else { |
900 | committed |= pattern; | |
901 | chords++; | |
902 | if (chords == brl_nbchords) { | |
7d12e780 | 903 | k_unicode(vc, BRL_UC_ROW | committed, up_flag); |
77426d72 ST |
904 | chords = 0; |
905 | committed = 0; | |
906 | } | |
907 | } | |
908 | } | |
909 | ||
7d12e780 | 910 | static void k_brl(struct vc_data *vc, unsigned char value, char up_flag) |
b9ec4e10 ST |
911 | { |
912 | static unsigned pressed,committing; | |
913 | static unsigned long releasestart; | |
914 | ||
915 | if (kbd->kbdmode != VC_UNICODE) { | |
916 | if (!up_flag) | |
9272e9a2 | 917 | pr_warning("keyboard mode must be unicode for braille patterns\n"); |
b9ec4e10 ST |
918 | return; |
919 | } | |
920 | ||
921 | if (!value) { | |
7d12e780 | 922 | k_unicode(vc, BRL_UC_ROW, up_flag); |
b9ec4e10 ST |
923 | return; |
924 | } | |
925 | ||
926 | if (value > 8) | |
927 | return; | |
928 | ||
b9ec4e10 ST |
929 | if (up_flag) { |
930 | if (brl_timeout) { | |
931 | if (!committing || | |
b39b0440 JL |
932 | time_after(jiffies, |
933 | releasestart + msecs_to_jiffies(brl_timeout))) { | |
b9ec4e10 ST |
934 | committing = pressed; |
935 | releasestart = jiffies; | |
936 | } | |
937 | pressed &= ~(1 << (value - 1)); | |
938 | if (!pressed) { | |
939 | if (committing) { | |
7d12e780 | 940 | k_brlcommit(vc, committing, 0); |
b9ec4e10 ST |
941 | committing = 0; |
942 | } | |
943 | } | |
944 | } else { | |
945 | if (committing) { | |
7d12e780 | 946 | k_brlcommit(vc, committing, 0); |
b9ec4e10 ST |
947 | committing = 0; |
948 | } | |
949 | pressed &= ~(1 << (value - 1)); | |
950 | } | |
951 | } else { | |
952 | pressed |= 1 << (value - 1); | |
953 | if (!brl_timeout) | |
954 | committing = pressed; | |
955 | } | |
956 | } | |
957 | ||
1da177e4 LT |
958 | /* |
959 | * The leds display either (i) the status of NumLock, CapsLock, ScrollLock, | |
960 | * or (ii) whatever pattern of lights people want to show using KDSETLED, | |
961 | * or (iii) specified bits of specified words in kernel memory. | |
962 | */ | |
963 | unsigned char getledstate(void) | |
964 | { | |
965 | return ledstate; | |
966 | } | |
967 | ||
968 | void setledstate(struct kbd_struct *kbd, unsigned int led) | |
969 | { | |
970 | if (!(led & ~7)) { | |
971 | ledioctl = led; | |
972 | kbd->ledmode = LED_SHOW_IOCTL; | |
973 | } else | |
974 | kbd->ledmode = LED_SHOW_FLAGS; | |
975 | set_leds(); | |
976 | } | |
977 | ||
978 | static inline unsigned char getleds(void) | |
979 | { | |
980 | struct kbd_struct *kbd = kbd_table + fg_console; | |
981 | unsigned char leds; | |
982 | int i; | |
983 | ||
984 | if (kbd->ledmode == LED_SHOW_IOCTL) | |
985 | return ledioctl; | |
986 | ||
987 | leds = kbd->ledflagstate; | |
988 | ||
989 | if (kbd->ledmode == LED_SHOW_MEM) { | |
990 | for (i = 0; i < 3; i++) | |
991 | if (ledptrs[i].valid) { | |
992 | if (*ledptrs[i].addr & ledptrs[i].mask) | |
993 | leds |= (1 << i); | |
994 | else | |
995 | leds &= ~(1 << i); | |
996 | } | |
997 | } | |
998 | return leds; | |
999 | } | |
1000 | ||
66d2a595 DT |
1001 | static int kbd_update_leds_helper(struct input_handle *handle, void *data) |
1002 | { | |
1003 | unsigned char leds = *(unsigned char *)data; | |
1004 | ||
1005 | if (test_bit(EV_LED, handle->dev->evbit)) { | |
1006 | input_inject_event(handle, EV_LED, LED_SCROLLL, !!(leds & 0x01)); | |
1007 | input_inject_event(handle, EV_LED, LED_NUML, !!(leds & 0x02)); | |
1008 | input_inject_event(handle, EV_LED, LED_CAPSL, !!(leds & 0x04)); | |
1009 | input_inject_event(handle, EV_SYN, SYN_REPORT, 0); | |
1010 | } | |
1011 | ||
1012 | return 0; | |
1013 | } | |
1014 | ||
1da177e4 | 1015 | /* |
66d2a595 DT |
1016 | * This is the tasklet that updates LED state on all keyboards |
1017 | * attached to the box. The reason we use tasklet is that we | |
1018 | * need to handle the scenario when keyboard handler is not | |
1019 | * registered yet but we already getting updates form VT to | |
1020 | * update led state. | |
1da177e4 | 1021 | */ |
1da177e4 LT |
1022 | static void kbd_bh(unsigned long dummy) |
1023 | { | |
1da177e4 LT |
1024 | unsigned char leds = getleds(); |
1025 | ||
1026 | if (leds != ledstate) { | |
66d2a595 DT |
1027 | input_handler_for_each_handle(&kbd_handler, &leds, |
1028 | kbd_update_leds_helper); | |
1029 | ledstate = leds; | |
1da177e4 | 1030 | } |
1da177e4 LT |
1031 | } |
1032 | ||
1033 | DECLARE_TASKLET_DISABLED(keyboard_tasklet, kbd_bh, 0); | |
1034 | ||
1da177e4 | 1035 | #if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_ALPHA) ||\ |
0b57ee9e AB |
1036 | defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_SPARC) ||\ |
1037 | defined(CONFIG_PARISC) || defined(CONFIG_SUPERH) ||\ | |
3a4e832c HCE |
1038 | (defined(CONFIG_ARM) && defined(CONFIG_KEYBOARD_ATKBD) && !defined(CONFIG_ARCH_RPC)) ||\ |
1039 | defined(CONFIG_AVR32) | |
1da177e4 LT |
1040 | |
1041 | #define HW_RAW(dev) (test_bit(EV_MSC, dev->evbit) && test_bit(MSC_RAW, dev->mscbit) &&\ | |
1042 | ((dev)->id.bustype == BUS_I8042) && ((dev)->id.vendor == 0x0001) && ((dev)->id.product == 0x0001)) | |
1043 | ||
0f5e560e | 1044 | static const unsigned short x86_keycodes[256] = |
1da177e4 LT |
1045 | { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, |
1046 | 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, | |
1047 | 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, | |
1048 | 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, | |
1049 | 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, | |
1050 | 80, 81, 82, 83, 84,118, 86, 87, 88,115,120,119,121,112,123, 92, | |
896cdc7b | 1051 | 284,285,309, 0,312, 91,327,328,329,331,333,335,336,337,338,339, |
1da177e4 LT |
1052 | 367,288,302,304,350, 89,334,326,267,126,268,269,125,347,348,349, |
1053 | 360,261,262,263,268,376,100,101,321,316,373,286,289,102,351,355, | |
72a42f24 HG |
1054 | 103,104,105,275,287,279,258,106,274,107,294,364,358,363,362,361, |
1055 | 291,108,381,281,290,272,292,305,280, 99,112,257,306,359,113,114, | |
1da177e4 LT |
1056 | 264,117,271,374,379,265,266, 93, 94, 95, 85,259,375,260, 90,116, |
1057 | 377,109,111,277,278,282,283,295,296,297,299,300,301,293,303,307, | |
1058 | 308,310,313,314,315,317,318,319,320,357,322,323,324,325,276,330, | |
1059 | 332,340,365,342,343,344,345,346,356,270,341,368,369,370,371,372 }; | |
1060 | ||
0b57ee9e | 1061 | #ifdef CONFIG_SPARC |
1da177e4 LT |
1062 | static int sparc_l1_a_state = 0; |
1063 | extern void sun_do_break(void); | |
1064 | #endif | |
1065 | ||
fe1e8604 | 1066 | static int emulate_raw(struct vc_data *vc, unsigned int keycode, |
1da177e4 LT |
1067 | unsigned char up_flag) |
1068 | { | |
896cdc7b | 1069 | int code; |
1da177e4 LT |
1070 | |
1071 | switch (keycode) { | |
1072 | case KEY_PAUSE: | |
1073 | put_queue(vc, 0xe1); | |
1074 | put_queue(vc, 0x1d | up_flag); | |
1075 | put_queue(vc, 0x45 | up_flag); | |
896cdc7b DT |
1076 | break; |
1077 | ||
b9ab58dd | 1078 | case KEY_HANGEUL: |
0ae051a1 DT |
1079 | if (!up_flag) |
1080 | put_queue(vc, 0xf2); | |
896cdc7b DT |
1081 | break; |
1082 | ||
1da177e4 | 1083 | case KEY_HANJA: |
0ae051a1 DT |
1084 | if (!up_flag) |
1085 | put_queue(vc, 0xf1); | |
896cdc7b | 1086 | break; |
1da177e4 | 1087 | |
896cdc7b DT |
1088 | case KEY_SYSRQ: |
1089 | /* | |
1090 | * Real AT keyboards (that's what we're trying | |
1091 | * to emulate here emit 0xe0 0x2a 0xe0 0x37 when | |
1092 | * pressing PrtSc/SysRq alone, but simply 0x54 | |
1093 | * when pressing Alt+PrtSc/SysRq. | |
1094 | */ | |
97f5f0cd DT |
1095 | if (test_bit(KEY_LEFTALT, key_down) || |
1096 | test_bit(KEY_RIGHTALT, key_down)) { | |
896cdc7b DT |
1097 | put_queue(vc, 0x54 | up_flag); |
1098 | } else { | |
1099 | put_queue(vc, 0xe0); | |
1100 | put_queue(vc, 0x2a | up_flag); | |
1101 | put_queue(vc, 0xe0); | |
1102 | put_queue(vc, 0x37 | up_flag); | |
1103 | } | |
1104 | break; | |
1105 | ||
1106 | default: | |
1107 | if (keycode > 255) | |
1108 | return -1; | |
1da177e4 | 1109 | |
896cdc7b DT |
1110 | code = x86_keycodes[keycode]; |
1111 | if (!code) | |
1112 | return -1; | |
1da177e4 | 1113 | |
896cdc7b DT |
1114 | if (code & 0x100) |
1115 | put_queue(vc, 0xe0); | |
1116 | put_queue(vc, (code & 0x7f) | up_flag); | |
1da177e4 | 1117 | |
896cdc7b | 1118 | break; |
1da177e4 LT |
1119 | } |
1120 | ||
1121 | return 0; | |
1122 | } | |
1123 | ||
1124 | #else | |
1125 | ||
1126 | #define HW_RAW(dev) 0 | |
1127 | ||
1da177e4 LT |
1128 | static int emulate_raw(struct vc_data *vc, unsigned int keycode, unsigned char up_flag) |
1129 | { | |
1130 | if (keycode > 127) | |
1131 | return -1; | |
1132 | ||
1133 | put_queue(vc, keycode | up_flag); | |
1134 | return 0; | |
1135 | } | |
1136 | #endif | |
1137 | ||
1138 | static void kbd_rawcode(unsigned char data) | |
1139 | { | |
1140 | struct vc_data *vc = vc_cons[fg_console].d; | |
0c09b2ac | 1141 | kbd = kbd_table + vc->vc_num; |
1da177e4 LT |
1142 | if (kbd->kbdmode == VC_RAW) |
1143 | put_queue(vc, data); | |
1144 | } | |
1145 | ||
7d12e780 | 1146 | static void kbd_keycode(unsigned int keycode, int down, int hw_raw) |
1da177e4 LT |
1147 | { |
1148 | struct vc_data *vc = vc_cons[fg_console].d; | |
1149 | unsigned short keysym, *key_map; | |
1150 | unsigned char type, raw_mode; | |
1151 | struct tty_struct *tty; | |
1152 | int shift_final; | |
41ab4396 | 1153 | struct keyboard_notifier_param param = { .vc = vc, .value = keycode, .down = down }; |
1da177e4 LT |
1154 | |
1155 | tty = vc->vc_tty; | |
1156 | ||
1157 | if (tty && (!tty->driver_data)) { | |
1158 | /* No driver data? Strange. Okay we fix it then. */ | |
1159 | tty->driver_data = vc; | |
1160 | } | |
1161 | ||
0c09b2ac | 1162 | kbd = kbd_table + vc->vc_num; |
1da177e4 | 1163 | |
0b57ee9e | 1164 | #ifdef CONFIG_SPARC |
1da177e4 LT |
1165 | if (keycode == KEY_STOP) |
1166 | sparc_l1_a_state = down; | |
1167 | #endif | |
1168 | ||
1169 | rep = (down == 2); | |
1170 | ||
1da177e4 LT |
1171 | if ((raw_mode = (kbd->kbdmode == VC_RAW)) && !hw_raw) |
1172 | if (emulate_raw(vc, keycode, !down << 7)) | |
9e35d206 | 1173 | if (keycode < BTN_MISC && printk_ratelimit()) |
9272e9a2 DT |
1174 | pr_warning("can't emulate rawmode for keycode %d\n", |
1175 | keycode); | |
1da177e4 | 1176 | |
0b57ee9e | 1177 | #ifdef CONFIG_SPARC |
1da177e4 LT |
1178 | if (keycode == KEY_A && sparc_l1_a_state) { |
1179 | sparc_l1_a_state = 0; | |
1180 | sun_do_break(); | |
1181 | } | |
1182 | #endif | |
1183 | ||
1184 | if (kbd->kbdmode == VC_MEDIUMRAW) { | |
1185 | /* | |
1186 | * This is extended medium raw mode, with keys above 127 | |
1187 | * encoded as 0, high 7 bits, low 7 bits, with the 0 bearing | |
1188 | * the 'up' flag if needed. 0 is reserved, so this shouldn't | |
1189 | * interfere with anything else. The two bytes after 0 will | |
1190 | * always have the up flag set not to interfere with older | |
1191 | * applications. This allows for 16384 different keycodes, | |
1192 | * which should be enough. | |
1193 | */ | |
1194 | if (keycode < 128) { | |
1195 | put_queue(vc, keycode | (!down << 7)); | |
1196 | } else { | |
1197 | put_queue(vc, !down << 7); | |
1198 | put_queue(vc, (keycode >> 7) | 0x80); | |
1199 | put_queue(vc, keycode | 0x80); | |
1200 | } | |
1201 | raw_mode = 1; | |
1202 | } | |
1203 | ||
1204 | if (down) | |
1205 | set_bit(keycode, key_down); | |
1206 | else | |
1207 | clear_bit(keycode, key_down); | |
1208 | ||
fe1e8604 DT |
1209 | if (rep && |
1210 | (!vc_kbd_mode(kbd, VC_REPEAT) || | |
f34d7a5b | 1211 | (tty && !L_ECHO(tty) && tty_chars_in_buffer(tty)))) { |
1da177e4 LT |
1212 | /* |
1213 | * Don't repeat a key if the input buffers are not empty and the | |
fe1e8604 | 1214 | * characters get aren't echoed locally. This makes key repeat |
1da177e4 LT |
1215 | * usable with slow applications and under heavy loads. |
1216 | */ | |
1217 | return; | |
1218 | } | |
1219 | ||
41ab4396 | 1220 | param.shift = shift_final = (shift_state | kbd->slockstate) ^ kbd->lockstate; |
0beb4f6f | 1221 | param.ledstate = kbd->ledflagstate; |
1da177e4 LT |
1222 | key_map = key_maps[shift_final]; |
1223 | ||
41ab4396 ST |
1224 | if (atomic_notifier_call_chain(&keyboard_notifier_list, KBD_KEYCODE, ¶m) == NOTIFY_STOP || !key_map) { |
1225 | atomic_notifier_call_chain(&keyboard_notifier_list, KBD_UNBOUND_KEYCODE, ¶m); | |
1da177e4 LT |
1226 | compute_shiftstate(); |
1227 | kbd->slockstate = 0; | |
1228 | return; | |
1229 | } | |
1230 | ||
161c6091 | 1231 | if (keycode >= NR_KEYS) |
b9ec4e10 | 1232 | if (keycode >= KEY_BRL_DOT1 && keycode <= KEY_BRL_DOT8) |
46a96546 | 1233 | keysym = U(K(KT_BRL, keycode - KEY_BRL_DOT1 + 1)); |
b9ec4e10 ST |
1234 | else |
1235 | return; | |
1236 | else | |
1237 | keysym = key_map[keycode]; | |
1da177e4 | 1238 | |
1da177e4 LT |
1239 | type = KTYP(keysym); |
1240 | ||
1241 | if (type < 0xf0) { | |
41ab4396 ST |
1242 | param.value = keysym; |
1243 | if (atomic_notifier_call_chain(&keyboard_notifier_list, KBD_UNICODE, ¶m) == NOTIFY_STOP) | |
1244 | return; | |
fe1e8604 DT |
1245 | if (down && !raw_mode) |
1246 | to_utf8(vc, keysym); | |
1da177e4 LT |
1247 | return; |
1248 | } | |
1249 | ||
1250 | type -= 0xf0; | |
1251 | ||
1da177e4 LT |
1252 | if (type == KT_LETTER) { |
1253 | type = KT_LATIN; | |
1254 | if (vc_kbd_led(kbd, VC_CAPSLOCK)) { | |
1255 | key_map = key_maps[shift_final ^ (1 << KG_SHIFT)]; | |
1256 | if (key_map) | |
1257 | keysym = key_map[keycode]; | |
1258 | } | |
1259 | } | |
41ab4396 ST |
1260 | param.value = keysym; |
1261 | ||
1262 | if (atomic_notifier_call_chain(&keyboard_notifier_list, KBD_KEYSYM, ¶m) == NOTIFY_STOP) | |
1263 | return; | |
1264 | ||
1265 | if (raw_mode && type != KT_SPEC && type != KT_SHIFT) | |
1266 | return; | |
1da177e4 | 1267 | |
7d12e780 | 1268 | (*k_handler[type])(vc, keysym & 0xff, !down); |
1da177e4 | 1269 | |
0beb4f6f | 1270 | param.ledstate = kbd->ledflagstate; |
41ab4396 ST |
1271 | atomic_notifier_call_chain(&keyboard_notifier_list, KBD_POST_KEYSYM, ¶m); |
1272 | ||
1da177e4 LT |
1273 | if (type != KT_SLOCK) |
1274 | kbd->slockstate = 0; | |
1275 | } | |
1276 | ||
fe1e8604 | 1277 | static void kbd_event(struct input_handle *handle, unsigned int event_type, |
1da177e4 LT |
1278 | unsigned int event_code, int value) |
1279 | { | |
21cea58e DT |
1280 | /* We are called with interrupts disabled, just take the lock */ |
1281 | spin_lock(&kbd_event_lock); | |
1282 | ||
1da177e4 LT |
1283 | if (event_type == EV_MSC && event_code == MSC_RAW && HW_RAW(handle->dev)) |
1284 | kbd_rawcode(value); | |
1285 | if (event_type == EV_KEY) | |
7d12e780 | 1286 | kbd_keycode(event_code, value, HW_RAW(handle->dev)); |
21cea58e DT |
1287 | |
1288 | spin_unlock(&kbd_event_lock); | |
1289 | ||
1da177e4 LT |
1290 | tasklet_schedule(&keyboard_tasklet); |
1291 | do_poke_blanked_console = 1; | |
1292 | schedule_console_callback(); | |
1293 | } | |
1294 | ||
0b7024ac DT |
1295 | static bool kbd_match(struct input_handler *handler, struct input_dev *dev) |
1296 | { | |
1297 | int i; | |
1298 | ||
1299 | if (test_bit(EV_SND, dev->evbit)) | |
1300 | return true; | |
1301 | ||
1302 | if (test_bit(EV_KEY, dev->evbit)) | |
1303 | for (i = KEY_RESERVED; i < BTN_MISC; i++) | |
1304 | if (test_bit(i, dev->keybit)) | |
1305 | return true; | |
1306 | ||
1307 | return false; | |
1308 | } | |
1309 | ||
1da177e4 LT |
1310 | /* |
1311 | * When a keyboard (or other input device) is found, the kbd_connect | |
1312 | * function is called. The function then looks at the device, and if it | |
1313 | * likes it, it can open it and get events from it. In this (kbd_connect) | |
1314 | * function, we should decide which VT to bind that keyboard to initially. | |
1315 | */ | |
5b2a0826 DT |
1316 | static int kbd_connect(struct input_handler *handler, struct input_dev *dev, |
1317 | const struct input_device_id *id) | |
1da177e4 LT |
1318 | { |
1319 | struct input_handle *handle; | |
5b2a0826 | 1320 | int error; |
1da177e4 | 1321 | |
22479e1c DT |
1322 | handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL); |
1323 | if (!handle) | |
5b2a0826 | 1324 | return -ENOMEM; |
1da177e4 LT |
1325 | |
1326 | handle->dev = dev; | |
1327 | handle->handler = handler; | |
fe1e8604 | 1328 | handle->name = "kbd"; |
1da177e4 | 1329 | |
5b2a0826 DT |
1330 | error = input_register_handle(handle); |
1331 | if (error) | |
1332 | goto err_free_handle; | |
1da177e4 | 1333 | |
5b2a0826 DT |
1334 | error = input_open_device(handle); |
1335 | if (error) | |
1336 | goto err_unregister_handle; | |
1337 | ||
1338 | return 0; | |
1339 | ||
1340 | err_unregister_handle: | |
1341 | input_unregister_handle(handle); | |
1342 | err_free_handle: | |
1343 | kfree(handle); | |
1344 | return error; | |
1da177e4 LT |
1345 | } |
1346 | ||
1347 | static void kbd_disconnect(struct input_handle *handle) | |
1348 | { | |
1349 | input_close_device(handle); | |
5b2a0826 | 1350 | input_unregister_handle(handle); |
1da177e4 LT |
1351 | kfree(handle); |
1352 | } | |
1353 | ||
c7e8dc6e DT |
1354 | /* |
1355 | * Start keyboard handler on the new keyboard by refreshing LED state to | |
1356 | * match the rest of the system. | |
1357 | */ | |
1358 | static void kbd_start(struct input_handle *handle) | |
1359 | { | |
c7e8dc6e | 1360 | tasklet_disable(&keyboard_tasklet); |
66d2a595 DT |
1361 | |
1362 | if (ledstate != 0xff) | |
1363 | kbd_update_leds_helper(handle, &ledstate); | |
1364 | ||
c7e8dc6e DT |
1365 | tasklet_enable(&keyboard_tasklet); |
1366 | } | |
1367 | ||
66e66118 | 1368 | static const struct input_device_id kbd_ids[] = { |
1da177e4 LT |
1369 | { |
1370 | .flags = INPUT_DEVICE_ID_MATCH_EVBIT, | |
7b19ada2 | 1371 | .evbit = { BIT_MASK(EV_KEY) }, |
1da177e4 | 1372 | }, |
fe1e8604 | 1373 | |
1da177e4 LT |
1374 | { |
1375 | .flags = INPUT_DEVICE_ID_MATCH_EVBIT, | |
7b19ada2 | 1376 | .evbit = { BIT_MASK(EV_SND) }, |
fe1e8604 | 1377 | }, |
1da177e4 LT |
1378 | |
1379 | { }, /* Terminating entry */ | |
1380 | }; | |
1381 | ||
1382 | MODULE_DEVICE_TABLE(input, kbd_ids); | |
1383 | ||
1384 | static struct input_handler kbd_handler = { | |
1385 | .event = kbd_event, | |
0b7024ac | 1386 | .match = kbd_match, |
1da177e4 LT |
1387 | .connect = kbd_connect, |
1388 | .disconnect = kbd_disconnect, | |
c7e8dc6e | 1389 | .start = kbd_start, |
1da177e4 LT |
1390 | .name = "kbd", |
1391 | .id_table = kbd_ids, | |
1392 | }; | |
1393 | ||
1394 | int __init kbd_init(void) | |
1395 | { | |
1396 | int i; | |
4263cf0f | 1397 | int error; |
1da177e4 | 1398 | |
2b192908 DT |
1399 | for (i = 0; i < MAX_NR_CONSOLES; i++) { |
1400 | kbd_table[i].ledflagstate = KBD_DEFLEDS; | |
1401 | kbd_table[i].default_ledflagstate = KBD_DEFLEDS; | |
1402 | kbd_table[i].ledmode = LED_SHOW_FLAGS; | |
1403 | kbd_table[i].lockstate = KBD_DEFLOCK; | |
1404 | kbd_table[i].slockstate = 0; | |
1405 | kbd_table[i].modeflags = KBD_DEFMODE; | |
2e8ecb9d | 1406 | kbd_table[i].kbdmode = default_utf8 ? VC_UNICODE : VC_XLATE; |
2b192908 | 1407 | } |
1da177e4 | 1408 | |
4263cf0f DT |
1409 | error = input_register_handler(&kbd_handler); |
1410 | if (error) | |
1411 | return error; | |
1da177e4 LT |
1412 | |
1413 | tasklet_enable(&keyboard_tasklet); | |
1414 | tasklet_schedule(&keyboard_tasklet); | |
1415 | ||
1416 | return 0; | |
1417 | } |