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 | ||
759448f4 | 27 | #include <linux/consolemap.h> |
1da177e4 LT |
28 | #include <linux/module.h> |
29 | #include <linux/sched.h> | |
30 | #include <linux/tty.h> | |
31 | #include <linux/tty_flip.h> | |
32 | #include <linux/mm.h> | |
33 | #include <linux/string.h> | |
34 | #include <linux/init.h> | |
35 | #include <linux/slab.h> | |
7d12e780 | 36 | #include <linux/irq.h> |
1da177e4 LT |
37 | |
38 | #include <linux/kbd_kern.h> | |
39 | #include <linux/kbd_diacr.h> | |
40 | #include <linux/vt_kern.h> | |
41 | #include <linux/sysrq.h> | |
42 | #include <linux/input.h> | |
83cc5ed3 | 43 | #include <linux/reboot.h> |
41ab4396 | 44 | #include <linux/notifier.h> |
b39b0440 | 45 | #include <linux/jiffies.h> |
1da177e4 | 46 | |
1da177e4 LT |
47 | extern void ctrl_alt_del(void); |
48 | ||
49 | /* | |
50 | * Exported functions/variables | |
51 | */ | |
52 | ||
53 | #define KBD_DEFMODE ((1 << VC_REPEAT) | (1 << VC_META)) | |
54 | ||
55 | /* | |
56 | * Some laptops take the 789uiojklm,. keys as number pad when NumLock is on. | |
57 | * This seems a good reason to start with NumLock off. On HIL keyboards | |
fe1e8604 | 58 | * of PARISC machines however there is no NumLock key and everyone expects the keypad |
1da177e4 LT |
59 | * to be used for numbers. |
60 | */ | |
61 | ||
62 | #if defined(CONFIG_PARISC) && (defined(CONFIG_KEYBOARD_HIL) || defined(CONFIG_KEYBOARD_HIL_OLD)) | |
63 | #define KBD_DEFLEDS (1 << VC_NUMLOCK) | |
64 | #else | |
65 | #define KBD_DEFLEDS 0 | |
66 | #endif | |
67 | ||
68 | #define KBD_DEFLOCK 0 | |
69 | ||
70 | void compute_shiftstate(void); | |
71 | ||
72 | /* | |
73 | * Handler Tables. | |
74 | */ | |
75 | ||
76 | #define K_HANDLERS\ | |
77 | k_self, k_fn, k_spec, k_pad,\ | |
78 | k_dead, k_cons, k_cur, k_shift,\ | |
79 | k_meta, k_ascii, k_lock, k_lowercase,\ | |
b9ec4e10 | 80 | k_slock, k_dead2, k_brl, k_ignore |
1da177e4 | 81 | |
fe1e8604 | 82 | typedef void (k_handler_fn)(struct vc_data *vc, unsigned char value, |
7d12e780 | 83 | char up_flag); |
1da177e4 | 84 | static k_handler_fn K_HANDLERS; |
41ab4396 ST |
85 | k_handler_fn *k_handler[16] = { K_HANDLERS }; |
86 | EXPORT_SYMBOL_GPL(k_handler); | |
1da177e4 LT |
87 | |
88 | #define FN_HANDLERS\ | |
fe1e8604 DT |
89 | fn_null, fn_enter, fn_show_ptregs, fn_show_mem,\ |
90 | fn_show_state, fn_send_intr, fn_lastcons, fn_caps_toggle,\ | |
91 | fn_num, fn_hold, fn_scroll_forw, fn_scroll_back,\ | |
92 | fn_boot_it, fn_caps_on, fn_compose, fn_SAK,\ | |
93 | fn_dec_console, fn_inc_console, fn_spawn_con, fn_bare_num | |
1da177e4 | 94 | |
7d12e780 | 95 | typedef void (fn_handler_fn)(struct vc_data *vc); |
1da177e4 LT |
96 | static fn_handler_fn FN_HANDLERS; |
97 | static fn_handler_fn *fn_handler[] = { FN_HANDLERS }; | |
98 | ||
99 | /* | |
100 | * Variables exported for vt_ioctl.c | |
101 | */ | |
102 | ||
103 | /* maximum values each key_handler can handle */ | |
104 | const int max_vals[] = { | |
105 | 255, ARRAY_SIZE(func_table) - 1, ARRAY_SIZE(fn_handler) - 1, NR_PAD - 1, | |
106 | NR_DEAD - 1, 255, 3, NR_SHIFT - 1, 255, NR_ASCII - 1, NR_LOCK - 1, | |
b9ec4e10 | 107 | 255, NR_LOCK - 1, 255, NR_BRL - 1 |
1da177e4 LT |
108 | }; |
109 | ||
110 | const int NR_TYPES = ARRAY_SIZE(max_vals); | |
111 | ||
112 | struct kbd_struct kbd_table[MAX_NR_CONSOLES]; | |
f7511d5f | 113 | EXPORT_SYMBOL_GPL(kbd_table); |
1da177e4 | 114 | static struct kbd_struct *kbd = kbd_table; |
1da177e4 | 115 | |
81af8d67 | 116 | struct vt_spawn_console vt_spawn_con = { |
ccc94256 | 117 | .lock = __SPIN_LOCK_UNLOCKED(vt_spawn_con.lock), |
81af8d67 EB |
118 | .pid = NULL, |
119 | .sig = 0, | |
120 | }; | |
1da177e4 LT |
121 | |
122 | /* | |
123 | * Variables exported for vt.c | |
124 | */ | |
125 | ||
126 | int shift_state = 0; | |
127 | ||
128 | /* | |
129 | * Internal Data. | |
130 | */ | |
131 | ||
132 | static struct input_handler kbd_handler; | |
21cea58e | 133 | static DEFINE_SPINLOCK(kbd_event_lock); |
7b19ada2 | 134 | static unsigned long key_down[BITS_TO_LONGS(KEY_CNT)]; /* keyboard key bitmap */ |
1da177e4 LT |
135 | static unsigned char shift_down[NR_SHIFT]; /* shift state counters.. */ |
136 | static int dead_key_next; | |
137 | static int npadch = -1; /* -1 or number assembled on pad */ | |
b9ec4e10 | 138 | static unsigned int diacr; |
1da177e4 LT |
139 | static char rep; /* flag telling character repeat */ |
140 | ||
141 | static unsigned char ledstate = 0xff; /* undefined */ | |
142 | static unsigned char ledioctl; | |
143 | ||
144 | static struct ledptr { | |
145 | unsigned int *addr; | |
146 | unsigned int mask; | |
147 | unsigned char valid:1; | |
148 | } ledptrs[3]; | |
149 | ||
150 | /* Simple translation table for the SysRq keys */ | |
151 | ||
152 | #ifdef CONFIG_MAGIC_SYSRQ | |
153 | unsigned char kbd_sysrq_xlate[KEY_MAX + 1] = | |
154 | "\000\0331234567890-=\177\t" /* 0x00 - 0x0f */ | |
155 | "qwertyuiop[]\r\000as" /* 0x10 - 0x1f */ | |
156 | "dfghjkl;'`\000\\zxcv" /* 0x20 - 0x2f */ | |
157 | "bnm,./\000*\000 \000\201\202\203\204\205" /* 0x30 - 0x3f */ | |
158 | "\206\207\210\211\212\000\000789-456+1" /* 0x40 - 0x4f */ | |
159 | "230\177\000\000\213\214\000\000\000\000\000\000\000\000\000\000" /* 0x50 - 0x5f */ | |
160 | "\r\000/"; /* 0x60 - 0x6f */ | |
161 | static int sysrq_down; | |
d2be8ee5 | 162 | static int sysrq_alt_use; |
1da177e4 LT |
163 | #endif |
164 | static int sysrq_alt; | |
165 | ||
41ab4396 ST |
166 | /* |
167 | * Notifier list for console keyboard events | |
168 | */ | |
169 | static ATOMIC_NOTIFIER_HEAD(keyboard_notifier_list); | |
170 | ||
171 | int register_keyboard_notifier(struct notifier_block *nb) | |
172 | { | |
173 | return atomic_notifier_chain_register(&keyboard_notifier_list, nb); | |
174 | } | |
175 | EXPORT_SYMBOL_GPL(register_keyboard_notifier); | |
176 | ||
177 | int unregister_keyboard_notifier(struct notifier_block *nb) | |
178 | { | |
179 | return atomic_notifier_chain_unregister(&keyboard_notifier_list, nb); | |
180 | } | |
181 | EXPORT_SYMBOL_GPL(unregister_keyboard_notifier); | |
182 | ||
1da177e4 | 183 | /* |
c8e4c772 MR |
184 | * Translation of scancodes to keycodes. We set them on only the first |
185 | * keyboard in the list that accepts the scancode and keycode. | |
186 | * Explanation for not choosing the first attached keyboard anymore: | |
187 | * USB keyboards for example have two event devices: one for all "normal" | |
188 | * keys and one for extra function keys (like "volume up", "make coffee", | |
189 | * etc.). So this means that scancodes for the extra function keys won't | |
190 | * be valid for the first event device, but will be for the second. | |
1da177e4 | 191 | */ |
66d2a595 DT |
192 | |
193 | struct getset_keycode_data { | |
194 | unsigned int scancode; | |
195 | unsigned int keycode; | |
196 | int error; | |
197 | }; | |
198 | ||
199 | static int getkeycode_helper(struct input_handle *handle, void *data) | |
200 | { | |
201 | struct getset_keycode_data *d = data; | |
202 | ||
203 | d->error = input_get_keycode(handle->dev, d->scancode, &d->keycode); | |
204 | ||
205 | return d->error == 0; /* stop as soon as we successfully get one */ | |
206 | } | |
207 | ||
1da177e4 LT |
208 | int getkeycode(unsigned int scancode) |
209 | { | |
66d2a595 | 210 | struct getset_keycode_data d = { scancode, 0, -ENODEV }; |
c8e4c772 | 211 | |
66d2a595 | 212 | input_handler_for_each_handle(&kbd_handler, &d, getkeycode_helper); |
1da177e4 | 213 | |
66d2a595 DT |
214 | return d.error ?: d.keycode; |
215 | } | |
216 | ||
217 | static int setkeycode_helper(struct input_handle *handle, void *data) | |
218 | { | |
219 | struct getset_keycode_data *d = data; | |
220 | ||
221 | d->error = input_set_keycode(handle->dev, d->scancode, d->keycode); | |
222 | ||
223 | return d->error == 0; /* stop as soon as we successfully set one */ | |
1da177e4 LT |
224 | } |
225 | ||
226 | int setkeycode(unsigned int scancode, unsigned int keycode) | |
227 | { | |
66d2a595 | 228 | struct getset_keycode_data d = { scancode, keycode, -ENODEV }; |
c8e4c772 | 229 | |
66d2a595 | 230 | input_handler_for_each_handle(&kbd_handler, &d, setkeycode_helper); |
1da177e4 | 231 | |
66d2a595 | 232 | return d.error; |
1da177e4 LT |
233 | } |
234 | ||
235 | /* | |
18f7ad59 DT |
236 | * Making beeps and bells. Note that we prefer beeps to bells, but when |
237 | * shutting the sound off we do both. | |
1da177e4 | 238 | */ |
66d2a595 DT |
239 | |
240 | static int kd_sound_helper(struct input_handle *handle, void *data) | |
1da177e4 | 241 | { |
66d2a595 DT |
242 | unsigned int *hz = data; |
243 | struct input_dev *dev = handle->dev; | |
1da177e4 | 244 | |
66d2a595 | 245 | if (test_bit(EV_SND, dev->evbit)) { |
18f7ad59 | 246 | if (test_bit(SND_TONE, dev->sndbit)) { |
66d2a595 | 247 | input_inject_event(handle, EV_SND, SND_TONE, *hz); |
18f7ad59 DT |
248 | if (*hz) |
249 | return 0; | |
250 | } | |
251 | if (test_bit(SND_BELL, dev->sndbit)) | |
66d2a595 | 252 | input_inject_event(handle, EV_SND, SND_BELL, *hz ? 1 : 0); |
1da177e4 | 253 | } |
66d2a595 DT |
254 | |
255 | return 0; | |
256 | } | |
257 | ||
258 | static void kd_nosound(unsigned long ignored) | |
259 | { | |
260 | static unsigned int zero; | |
261 | ||
262 | input_handler_for_each_handle(&kbd_handler, &zero, kd_sound_helper); | |
1da177e4 LT |
263 | } |
264 | ||
8d06afab | 265 | static DEFINE_TIMER(kd_mksound_timer, kd_nosound, 0, 0); |
1da177e4 LT |
266 | |
267 | void kd_mksound(unsigned int hz, unsigned int ticks) | |
268 | { | |
66d2a595 | 269 | del_timer_sync(&kd_mksound_timer); |
1da177e4 | 270 | |
66d2a595 | 271 | input_handler_for_each_handle(&kbd_handler, &hz, kd_sound_helper); |
1da177e4 | 272 | |
66d2a595 DT |
273 | if (hz && ticks) |
274 | mod_timer(&kd_mksound_timer, jiffies + ticks); | |
1da177e4 | 275 | } |
f7511d5f | 276 | EXPORT_SYMBOL(kd_mksound); |
1da177e4 LT |
277 | |
278 | /* | |
279 | * Setting the keyboard rate. | |
280 | */ | |
281 | ||
66d2a595 | 282 | static int kbd_rate_helper(struct input_handle *handle, void *data) |
1da177e4 | 283 | { |
66d2a595 DT |
284 | struct input_dev *dev = handle->dev; |
285 | struct kbd_repeat *rep = data; | |
286 | ||
287 | if (test_bit(EV_REP, dev->evbit)) { | |
288 | ||
289 | if (rep[0].delay > 0) | |
290 | input_inject_event(handle, | |
291 | EV_REP, REP_DELAY, rep[0].delay); | |
292 | if (rep[0].period > 0) | |
293 | input_inject_event(handle, | |
294 | EV_REP, REP_PERIOD, rep[0].period); | |
295 | ||
296 | rep[1].delay = dev->rep[REP_DELAY]; | |
297 | rep[1].period = dev->rep[REP_PERIOD]; | |
1da177e4 | 298 | } |
66d2a595 DT |
299 | |
300 | return 0; | |
301 | } | |
302 | ||
303 | int kbd_rate(struct kbd_repeat *rep) | |
304 | { | |
305 | struct kbd_repeat data[2] = { *rep }; | |
306 | ||
307 | input_handler_for_each_handle(&kbd_handler, data, kbd_rate_helper); | |
308 | *rep = data[1]; /* Copy currently used settings */ | |
309 | ||
1da177e4 LT |
310 | return 0; |
311 | } | |
312 | ||
313 | /* | |
314 | * Helper Functions. | |
315 | */ | |
316 | static void put_queue(struct vc_data *vc, int ch) | |
317 | { | |
318 | struct tty_struct *tty = vc->vc_tty; | |
319 | ||
320 | if (tty) { | |
321 | tty_insert_flip_char(tty, ch, 0); | |
322 | con_schedule_flip(tty); | |
323 | } | |
324 | } | |
325 | ||
326 | static void puts_queue(struct vc_data *vc, char *cp) | |
327 | { | |
328 | struct tty_struct *tty = vc->vc_tty; | |
329 | ||
330 | if (!tty) | |
331 | return; | |
332 | ||
333 | while (*cp) { | |
334 | tty_insert_flip_char(tty, *cp, 0); | |
335 | cp++; | |
336 | } | |
337 | con_schedule_flip(tty); | |
338 | } | |
339 | ||
340 | static void applkey(struct vc_data *vc, int key, char mode) | |
341 | { | |
342 | static char buf[] = { 0x1b, 'O', 0x00, 0x00 }; | |
343 | ||
344 | buf[1] = (mode ? 'O' : '['); | |
345 | buf[2] = key; | |
346 | puts_queue(vc, buf); | |
347 | } | |
348 | ||
349 | /* | |
350 | * Many other routines do put_queue, but I think either | |
351 | * they produce ASCII, or they produce some user-assigned | |
352 | * string, and in both cases we might assume that it is | |
759448f4 | 353 | * in utf-8 already. |
1da177e4 | 354 | */ |
759448f4 | 355 | static void to_utf8(struct vc_data *vc, uint c) |
1da177e4 LT |
356 | { |
357 | if (c < 0x80) | |
358 | /* 0******* */ | |
359 | put_queue(vc, c); | |
fe1e8604 | 360 | else if (c < 0x800) { |
1da177e4 | 361 | /* 110***** 10****** */ |
fe1e8604 | 362 | put_queue(vc, 0xc0 | (c >> 6)); |
1da177e4 | 363 | put_queue(vc, 0x80 | (c & 0x3f)); |
759448f4 JE |
364 | } else if (c < 0x10000) { |
365 | if (c >= 0xD800 && c < 0xE000) | |
366 | return; | |
367 | if (c == 0xFFFF) | |
368 | return; | |
1da177e4 LT |
369 | /* 1110**** 10****** 10****** */ |
370 | put_queue(vc, 0xe0 | (c >> 12)); | |
371 | put_queue(vc, 0x80 | ((c >> 6) & 0x3f)); | |
372 | put_queue(vc, 0x80 | (c & 0x3f)); | |
759448f4 JE |
373 | } else if (c < 0x110000) { |
374 | /* 11110*** 10****** 10****** 10****** */ | |
375 | put_queue(vc, 0xf0 | (c >> 18)); | |
376 | put_queue(vc, 0x80 | ((c >> 12) & 0x3f)); | |
377 | put_queue(vc, 0x80 | ((c >> 6) & 0x3f)); | |
378 | put_queue(vc, 0x80 | (c & 0x3f)); | |
fe1e8604 | 379 | } |
1da177e4 LT |
380 | } |
381 | ||
fe1e8604 | 382 | /* |
1da177e4 LT |
383 | * Called after returning from RAW mode or when changing consoles - recompute |
384 | * shift_down[] and shift_state from key_down[] maybe called when keymap is | |
385 | * undefined, so that shiftkey release is seen | |
386 | */ | |
387 | void compute_shiftstate(void) | |
388 | { | |
389 | unsigned int i, j, k, sym, val; | |
390 | ||
391 | shift_state = 0; | |
392 | memset(shift_down, 0, sizeof(shift_down)); | |
fe1e8604 | 393 | |
1da177e4 LT |
394 | for (i = 0; i < ARRAY_SIZE(key_down); i++) { |
395 | ||
396 | if (!key_down[i]) | |
397 | continue; | |
398 | ||
399 | k = i * BITS_PER_LONG; | |
400 | ||
401 | for (j = 0; j < BITS_PER_LONG; j++, k++) { | |
402 | ||
403 | if (!test_bit(k, key_down)) | |
404 | continue; | |
405 | ||
406 | sym = U(key_maps[0][k]); | |
407 | if (KTYP(sym) != KT_SHIFT && KTYP(sym) != KT_SLOCK) | |
408 | continue; | |
409 | ||
410 | val = KVAL(sym); | |
411 | if (val == KVAL(K_CAPSSHIFT)) | |
412 | val = KVAL(K_SHIFT); | |
413 | ||
414 | shift_down[val]++; | |
415 | shift_state |= (1 << val); | |
416 | } | |
417 | } | |
418 | } | |
419 | ||
420 | /* | |
421 | * We have a combining character DIACR here, followed by the character CH. | |
422 | * If the combination occurs in the table, return the corresponding value. | |
423 | * Otherwise, if CH is a space or equals DIACR, return DIACR. | |
424 | * Otherwise, conclude that DIACR was not combining after all, | |
425 | * queue it and return CH. | |
426 | */ | |
b9ec4e10 | 427 | static unsigned int handle_diacr(struct vc_data *vc, unsigned int ch) |
1da177e4 | 428 | { |
b9ec4e10 | 429 | unsigned int d = diacr; |
1da177e4 LT |
430 | unsigned int i; |
431 | ||
432 | diacr = 0; | |
433 | ||
b9ec4e10 ST |
434 | if ((d & ~0xff) == BRL_UC_ROW) { |
435 | if ((ch & ~0xff) == BRL_UC_ROW) | |
436 | return d | ch; | |
437 | } else { | |
438 | for (i = 0; i < accent_table_size; i++) | |
439 | if (accent_table[i].diacr == d && accent_table[i].base == ch) | |
440 | return accent_table[i].result; | |
1da177e4 LT |
441 | } |
442 | ||
b9ec4e10 | 443 | if (ch == ' ' || ch == (BRL_UC_ROW|0) || ch == d) |
1da177e4 LT |
444 | return d; |
445 | ||
b9ec4e10 | 446 | if (kbd->kbdmode == VC_UNICODE) |
04c71976 ST |
447 | to_utf8(vc, d); |
448 | else { | |
449 | int c = conv_uni_to_8bit(d); | |
450 | if (c != -1) | |
451 | put_queue(vc, c); | |
452 | } | |
b9ec4e10 | 453 | |
1da177e4 LT |
454 | return ch; |
455 | } | |
456 | ||
457 | /* | |
458 | * Special function handlers | |
459 | */ | |
7d12e780 | 460 | static void fn_enter(struct vc_data *vc) |
1da177e4 LT |
461 | { |
462 | if (diacr) { | |
b9ec4e10 | 463 | if (kbd->kbdmode == VC_UNICODE) |
04c71976 ST |
464 | to_utf8(vc, diacr); |
465 | else { | |
466 | int c = conv_uni_to_8bit(diacr); | |
467 | if (c != -1) | |
468 | put_queue(vc, c); | |
469 | } | |
1da177e4 LT |
470 | diacr = 0; |
471 | } | |
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; | |
481 | chg_vc_kbd_led(kbd, VC_CAPSLOCK); | |
482 | } | |
483 | ||
7d12e780 | 484 | static void fn_caps_on(struct vc_data *vc) |
1da177e4 LT |
485 | { |
486 | if (rep) | |
487 | return; | |
488 | set_vc_kbd_led(kbd, VC_CAPSLOCK); | |
489 | } | |
490 | ||
7d12e780 | 491 | static void fn_show_ptregs(struct vc_data *vc) |
1da177e4 | 492 | { |
7d12e780 | 493 | struct pt_regs *regs = get_irq_regs(); |
1da177e4 LT |
494 | if (regs) |
495 | show_regs(regs); | |
496 | } | |
497 | ||
7d12e780 | 498 | static void fn_hold(struct vc_data *vc) |
1da177e4 LT |
499 | { |
500 | struct tty_struct *tty = vc->vc_tty; | |
501 | ||
502 | if (rep || !tty) | |
503 | return; | |
504 | ||
505 | /* | |
506 | * Note: SCROLLOCK will be set (cleared) by stop_tty (start_tty); | |
507 | * these routines are also activated by ^S/^Q. | |
508 | * (And SCROLLOCK can also be set by the ioctl KDSKBLED.) | |
509 | */ | |
510 | if (tty->stopped) | |
511 | start_tty(tty); | |
512 | else | |
513 | stop_tty(tty); | |
514 | } | |
515 | ||
7d12e780 | 516 | static void fn_num(struct vc_data *vc) |
1da177e4 LT |
517 | { |
518 | if (vc_kbd_mode(kbd,VC_APPLIC)) | |
519 | applkey(vc, 'P', 1); | |
520 | else | |
7d12e780 | 521 | fn_bare_num(vc); |
1da177e4 LT |
522 | } |
523 | ||
524 | /* | |
525 | * Bind this to Shift-NumLock if you work in application keypad mode | |
526 | * but want to be able to change the NumLock flag. | |
527 | * Bind this to NumLock if you prefer that the NumLock key always | |
528 | * changes the NumLock flag. | |
529 | */ | |
7d12e780 | 530 | static void fn_bare_num(struct vc_data *vc) |
1da177e4 LT |
531 | { |
532 | if (!rep) | |
533 | chg_vc_kbd_led(kbd, VC_NUMLOCK); | |
534 | } | |
535 | ||
7d12e780 | 536 | static void fn_lastcons(struct vc_data *vc) |
1da177e4 LT |
537 | { |
538 | /* switch to the last used console, ChN */ | |
539 | set_console(last_console); | |
540 | } | |
541 | ||
7d12e780 | 542 | static void fn_dec_console(struct vc_data *vc) |
1da177e4 LT |
543 | { |
544 | int i, cur = fg_console; | |
545 | ||
546 | /* Currently switching? Queue this next switch relative to that. */ | |
547 | if (want_console != -1) | |
548 | cur = want_console; | |
549 | ||
fe1e8604 | 550 | for (i = cur - 1; i != cur; i--) { |
1da177e4 | 551 | if (i == -1) |
fe1e8604 | 552 | i = MAX_NR_CONSOLES - 1; |
1da177e4 LT |
553 | if (vc_cons_allocated(i)) |
554 | break; | |
555 | } | |
556 | set_console(i); | |
557 | } | |
558 | ||
7d12e780 | 559 | static void fn_inc_console(struct vc_data *vc) |
1da177e4 LT |
560 | { |
561 | int i, cur = fg_console; | |
562 | ||
563 | /* Currently switching? Queue this next switch relative to that. */ | |
564 | if (want_console != -1) | |
565 | cur = want_console; | |
566 | ||
567 | for (i = cur+1; i != cur; i++) { | |
568 | if (i == MAX_NR_CONSOLES) | |
569 | i = 0; | |
570 | if (vc_cons_allocated(i)) | |
571 | break; | |
572 | } | |
573 | set_console(i); | |
574 | } | |
575 | ||
7d12e780 | 576 | static void fn_send_intr(struct vc_data *vc) |
1da177e4 LT |
577 | { |
578 | struct tty_struct *tty = vc->vc_tty; | |
579 | ||
580 | if (!tty) | |
581 | return; | |
582 | tty_insert_flip_char(tty, 0, TTY_BREAK); | |
583 | con_schedule_flip(tty); | |
584 | } | |
585 | ||
7d12e780 | 586 | static void fn_scroll_forw(struct vc_data *vc) |
1da177e4 LT |
587 | { |
588 | scrollfront(vc, 0); | |
589 | } | |
590 | ||
7d12e780 | 591 | static void fn_scroll_back(struct vc_data *vc) |
1da177e4 LT |
592 | { |
593 | scrollback(vc, 0); | |
594 | } | |
595 | ||
7d12e780 | 596 | static void fn_show_mem(struct vc_data *vc) |
1da177e4 LT |
597 | { |
598 | show_mem(); | |
599 | } | |
600 | ||
7d12e780 | 601 | static void fn_show_state(struct vc_data *vc) |
1da177e4 LT |
602 | { |
603 | show_state(); | |
604 | } | |
605 | ||
7d12e780 | 606 | static void fn_boot_it(struct vc_data *vc) |
1da177e4 LT |
607 | { |
608 | ctrl_alt_del(); | |
609 | } | |
610 | ||
7d12e780 | 611 | static void fn_compose(struct vc_data *vc) |
1da177e4 LT |
612 | { |
613 | dead_key_next = 1; | |
614 | } | |
615 | ||
7d12e780 | 616 | static void fn_spawn_con(struct vc_data *vc) |
1da177e4 | 617 | { |
81af8d67 EB |
618 | spin_lock(&vt_spawn_con.lock); |
619 | if (vt_spawn_con.pid) | |
620 | if (kill_pid(vt_spawn_con.pid, vt_spawn_con.sig, 1)) { | |
621 | put_pid(vt_spawn_con.pid); | |
622 | vt_spawn_con.pid = NULL; | |
623 | } | |
624 | spin_unlock(&vt_spawn_con.lock); | |
1da177e4 LT |
625 | } |
626 | ||
7d12e780 | 627 | static void fn_SAK(struct vc_data *vc) |
1da177e4 | 628 | { |
8b6312f4 | 629 | struct work_struct *SAK_work = &vc_cons[fg_console].SAK_work; |
8b6312f4 | 630 | schedule_work(SAK_work); |
1da177e4 LT |
631 | } |
632 | ||
7d12e780 | 633 | static void fn_null(struct vc_data *vc) |
1da177e4 LT |
634 | { |
635 | compute_shiftstate(); | |
636 | } | |
637 | ||
638 | /* | |
639 | * Special key handlers | |
640 | */ | |
7d12e780 | 641 | static void k_ignore(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
642 | { |
643 | } | |
644 | ||
7d12e780 | 645 | static void k_spec(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
646 | { |
647 | if (up_flag) | |
648 | return; | |
649 | if (value >= ARRAY_SIZE(fn_handler)) | |
650 | return; | |
fe1e8604 DT |
651 | if ((kbd->kbdmode == VC_RAW || |
652 | kbd->kbdmode == VC_MEDIUMRAW) && | |
1da177e4 LT |
653 | value != KVAL(K_SAK)) |
654 | return; /* SAK is allowed even in raw mode */ | |
7d12e780 | 655 | fn_handler[value](vc); |
1da177e4 LT |
656 | } |
657 | ||
7d12e780 | 658 | static void k_lowercase(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
659 | { |
660 | printk(KERN_ERR "keyboard.c: k_lowercase was called - impossible\n"); | |
661 | } | |
662 | ||
7d12e780 | 663 | static void k_unicode(struct vc_data *vc, unsigned int value, char up_flag) |
1da177e4 LT |
664 | { |
665 | if (up_flag) | |
666 | return; /* no action, if this is a key release */ | |
667 | ||
668 | if (diacr) | |
669 | value = handle_diacr(vc, value); | |
670 | ||
671 | if (dead_key_next) { | |
672 | dead_key_next = 0; | |
673 | diacr = value; | |
674 | return; | |
675 | } | |
b9ec4e10 | 676 | if (kbd->kbdmode == VC_UNICODE) |
04c71976 ST |
677 | to_utf8(vc, value); |
678 | else { | |
679 | int c = conv_uni_to_8bit(value); | |
680 | if (c != -1) | |
681 | put_queue(vc, c); | |
682 | } | |
1da177e4 LT |
683 | } |
684 | ||
685 | /* | |
686 | * Handle dead key. Note that we now may have several | |
687 | * dead keys modifying the same character. Very useful | |
688 | * for Vietnamese. | |
689 | */ | |
7d12e780 | 690 | static void k_deadunicode(struct vc_data *vc, unsigned int value, char up_flag) |
1da177e4 LT |
691 | { |
692 | if (up_flag) | |
693 | return; | |
694 | diacr = (diacr ? handle_diacr(vc, value) : value); | |
695 | } | |
696 | ||
7d12e780 | 697 | static void k_self(struct vc_data *vc, unsigned char value, char up_flag) |
b9ec4e10 | 698 | { |
d2187ebd | 699 | k_unicode(vc, conv_8bit_to_uni(value), up_flag); |
b9ec4e10 ST |
700 | } |
701 | ||
7d12e780 | 702 | static void k_dead2(struct vc_data *vc, unsigned char value, char up_flag) |
b9ec4e10 | 703 | { |
7d12e780 | 704 | k_deadunicode(vc, value, up_flag); |
b9ec4e10 ST |
705 | } |
706 | ||
1da177e4 LT |
707 | /* |
708 | * Obsolete - for backwards compatibility only | |
709 | */ | |
7d12e780 | 710 | static void k_dead(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 711 | { |
0f5e560e | 712 | static const unsigned char ret_diacr[NR_DEAD] = {'`', '\'', '^', '~', '"', ',' }; |
1da177e4 | 713 | value = ret_diacr[value]; |
7d12e780 | 714 | k_deadunicode(vc, value, up_flag); |
1da177e4 LT |
715 | } |
716 | ||
7d12e780 | 717 | static void k_cons(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
718 | { |
719 | if (up_flag) | |
720 | return; | |
721 | set_console(value); | |
722 | } | |
723 | ||
7d12e780 | 724 | static void k_fn(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
725 | { |
726 | unsigned v; | |
727 | ||
728 | if (up_flag) | |
729 | return; | |
730 | v = value; | |
731 | if (v < ARRAY_SIZE(func_table)) { | |
732 | if (func_table[value]) | |
733 | puts_queue(vc, func_table[value]); | |
734 | } else | |
735 | printk(KERN_ERR "k_fn called with value=%d\n", value); | |
736 | } | |
737 | ||
7d12e780 | 738 | static void k_cur(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 739 | { |
e52b29c2 | 740 | static const char cur_chars[] = "BDCA"; |
1da177e4 LT |
741 | |
742 | if (up_flag) | |
743 | return; | |
744 | applkey(vc, cur_chars[value], vc_kbd_mode(kbd, VC_CKMODE)); | |
745 | } | |
746 | ||
7d12e780 | 747 | static void k_pad(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 748 | { |
0f5e560e AM |
749 | static const char pad_chars[] = "0123456789+-*/\015,.?()#"; |
750 | static const char app_map[] = "pqrstuvwxylSRQMnnmPQS"; | |
1da177e4 LT |
751 | |
752 | if (up_flag) | |
753 | return; /* no action, if this is a key release */ | |
754 | ||
755 | /* kludge... shift forces cursor/number keys */ | |
756 | if (vc_kbd_mode(kbd, VC_APPLIC) && !shift_down[KG_SHIFT]) { | |
757 | applkey(vc, app_map[value], 1); | |
758 | return; | |
759 | } | |
760 | ||
761 | if (!vc_kbd_led(kbd, VC_NUMLOCK)) | |
762 | switch (value) { | |
763 | case KVAL(K_PCOMMA): | |
764 | case KVAL(K_PDOT): | |
7d12e780 | 765 | k_fn(vc, KVAL(K_REMOVE), 0); |
1da177e4 LT |
766 | return; |
767 | case KVAL(K_P0): | |
7d12e780 | 768 | k_fn(vc, KVAL(K_INSERT), 0); |
1da177e4 LT |
769 | return; |
770 | case KVAL(K_P1): | |
7d12e780 | 771 | k_fn(vc, KVAL(K_SELECT), 0); |
1da177e4 LT |
772 | return; |
773 | case KVAL(K_P2): | |
7d12e780 | 774 | k_cur(vc, KVAL(K_DOWN), 0); |
1da177e4 LT |
775 | return; |
776 | case KVAL(K_P3): | |
7d12e780 | 777 | k_fn(vc, KVAL(K_PGDN), 0); |
1da177e4 LT |
778 | return; |
779 | case KVAL(K_P4): | |
7d12e780 | 780 | k_cur(vc, KVAL(K_LEFT), 0); |
1da177e4 LT |
781 | return; |
782 | case KVAL(K_P6): | |
7d12e780 | 783 | k_cur(vc, KVAL(K_RIGHT), 0); |
1da177e4 LT |
784 | return; |
785 | case KVAL(K_P7): | |
7d12e780 | 786 | k_fn(vc, KVAL(K_FIND), 0); |
1da177e4 LT |
787 | return; |
788 | case KVAL(K_P8): | |
7d12e780 | 789 | k_cur(vc, KVAL(K_UP), 0); |
1da177e4 LT |
790 | return; |
791 | case KVAL(K_P9): | |
7d12e780 | 792 | k_fn(vc, KVAL(K_PGUP), 0); |
1da177e4 LT |
793 | return; |
794 | case KVAL(K_P5): | |
795 | applkey(vc, 'G', vc_kbd_mode(kbd, VC_APPLIC)); | |
796 | return; | |
797 | } | |
798 | ||
799 | put_queue(vc, pad_chars[value]); | |
800 | if (value == KVAL(K_PENTER) && vc_kbd_mode(kbd, VC_CRLF)) | |
801 | put_queue(vc, 10); | |
802 | } | |
803 | ||
7d12e780 | 804 | static void k_shift(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
805 | { |
806 | int old_state = shift_state; | |
807 | ||
808 | if (rep) | |
809 | return; | |
810 | /* | |
811 | * Mimic typewriter: | |
812 | * a CapsShift key acts like Shift but undoes CapsLock | |
813 | */ | |
814 | if (value == KVAL(K_CAPSSHIFT)) { | |
815 | value = KVAL(K_SHIFT); | |
816 | if (!up_flag) | |
817 | clr_vc_kbd_led(kbd, VC_CAPSLOCK); | |
818 | } | |
819 | ||
820 | if (up_flag) { | |
821 | /* | |
822 | * handle the case that two shift or control | |
823 | * keys are depressed simultaneously | |
824 | */ | |
825 | if (shift_down[value]) | |
826 | shift_down[value]--; | |
827 | } else | |
828 | shift_down[value]++; | |
829 | ||
830 | if (shift_down[value]) | |
831 | shift_state |= (1 << value); | |
832 | else | |
833 | shift_state &= ~(1 << value); | |
834 | ||
835 | /* kludge */ | |
836 | if (up_flag && shift_state != old_state && npadch != -1) { | |
837 | if (kbd->kbdmode == VC_UNICODE) | |
759448f4 | 838 | to_utf8(vc, npadch); |
1da177e4 LT |
839 | else |
840 | put_queue(vc, npadch & 0xff); | |
841 | npadch = -1; | |
842 | } | |
843 | } | |
844 | ||
7d12e780 | 845 | static void k_meta(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
846 | { |
847 | if (up_flag) | |
848 | return; | |
849 | ||
850 | if (vc_kbd_mode(kbd, VC_META)) { | |
851 | put_queue(vc, '\033'); | |
852 | put_queue(vc, value); | |
853 | } else | |
854 | put_queue(vc, value | 0x80); | |
855 | } | |
856 | ||
7d12e780 | 857 | static void k_ascii(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
858 | { |
859 | int base; | |
860 | ||
861 | if (up_flag) | |
862 | return; | |
863 | ||
864 | if (value < 10) { | |
865 | /* decimal input of code, while Alt depressed */ | |
866 | base = 10; | |
867 | } else { | |
868 | /* hexadecimal input of code, while AltGr depressed */ | |
869 | value -= 10; | |
870 | base = 16; | |
871 | } | |
872 | ||
873 | if (npadch == -1) | |
874 | npadch = value; | |
875 | else | |
876 | npadch = npadch * base + value; | |
877 | } | |
878 | ||
7d12e780 | 879 | static void k_lock(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
880 | { |
881 | if (up_flag || rep) | |
882 | return; | |
883 | chg_vc_kbd_lock(kbd, value); | |
884 | } | |
885 | ||
7d12e780 | 886 | static void k_slock(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 887 | { |
7d12e780 | 888 | k_shift(vc, value, up_flag); |
1da177e4 LT |
889 | if (up_flag || rep) |
890 | return; | |
891 | chg_vc_kbd_slock(kbd, value); | |
892 | /* try to make Alt, oops, AltGr and such work */ | |
893 | if (!key_maps[kbd->lockstate ^ kbd->slockstate]) { | |
894 | kbd->slockstate = 0; | |
895 | chg_vc_kbd_slock(kbd, value); | |
896 | } | |
897 | } | |
898 | ||
b9ec4e10 | 899 | /* by default, 300ms interval for combination release */ |
77426d72 ST |
900 | static unsigned brl_timeout = 300; |
901 | MODULE_PARM_DESC(brl_timeout, "Braille keys release delay in ms (0 for commit on first key release)"); | |
902 | module_param(brl_timeout, uint, 0644); | |
903 | ||
904 | static unsigned brl_nbchords = 1; | |
905 | MODULE_PARM_DESC(brl_nbchords, "Number of chords that produce a braille pattern (0 for dead chords)"); | |
906 | module_param(brl_nbchords, uint, 0644); | |
907 | ||
7d12e780 | 908 | static void k_brlcommit(struct vc_data *vc, unsigned int pattern, char up_flag) |
77426d72 ST |
909 | { |
910 | static unsigned long chords; | |
911 | static unsigned committed; | |
912 | ||
913 | if (!brl_nbchords) | |
7d12e780 | 914 | k_deadunicode(vc, BRL_UC_ROW | pattern, up_flag); |
77426d72 ST |
915 | else { |
916 | committed |= pattern; | |
917 | chords++; | |
918 | if (chords == brl_nbchords) { | |
7d12e780 | 919 | k_unicode(vc, BRL_UC_ROW | committed, up_flag); |
77426d72 ST |
920 | chords = 0; |
921 | committed = 0; | |
922 | } | |
923 | } | |
924 | } | |
925 | ||
7d12e780 | 926 | static void k_brl(struct vc_data *vc, unsigned char value, char up_flag) |
b9ec4e10 ST |
927 | { |
928 | static unsigned pressed,committing; | |
929 | static unsigned long releasestart; | |
930 | ||
931 | if (kbd->kbdmode != VC_UNICODE) { | |
932 | if (!up_flag) | |
933 | printk("keyboard mode must be unicode for braille patterns\n"); | |
934 | return; | |
935 | } | |
936 | ||
937 | if (!value) { | |
7d12e780 | 938 | k_unicode(vc, BRL_UC_ROW, up_flag); |
b9ec4e10 ST |
939 | return; |
940 | } | |
941 | ||
942 | if (value > 8) | |
943 | return; | |
944 | ||
b9ec4e10 ST |
945 | if (up_flag) { |
946 | if (brl_timeout) { | |
947 | if (!committing || | |
b39b0440 JL |
948 | time_after(jiffies, |
949 | releasestart + msecs_to_jiffies(brl_timeout))) { | |
b9ec4e10 ST |
950 | committing = pressed; |
951 | releasestart = jiffies; | |
952 | } | |
953 | pressed &= ~(1 << (value - 1)); | |
954 | if (!pressed) { | |
955 | if (committing) { | |
7d12e780 | 956 | k_brlcommit(vc, committing, 0); |
b9ec4e10 ST |
957 | committing = 0; |
958 | } | |
959 | } | |
960 | } else { | |
961 | if (committing) { | |
7d12e780 | 962 | k_brlcommit(vc, committing, 0); |
b9ec4e10 ST |
963 | committing = 0; |
964 | } | |
965 | pressed &= ~(1 << (value - 1)); | |
966 | } | |
967 | } else { | |
968 | pressed |= 1 << (value - 1); | |
969 | if (!brl_timeout) | |
970 | committing = pressed; | |
971 | } | |
972 | } | |
973 | ||
1da177e4 LT |
974 | /* |
975 | * The leds display either (i) the status of NumLock, CapsLock, ScrollLock, | |
976 | * or (ii) whatever pattern of lights people want to show using KDSETLED, | |
977 | * or (iii) specified bits of specified words in kernel memory. | |
978 | */ | |
979 | unsigned char getledstate(void) | |
980 | { | |
981 | return ledstate; | |
982 | } | |
983 | ||
984 | void setledstate(struct kbd_struct *kbd, unsigned int led) | |
985 | { | |
986 | if (!(led & ~7)) { | |
987 | ledioctl = led; | |
988 | kbd->ledmode = LED_SHOW_IOCTL; | |
989 | } else | |
990 | kbd->ledmode = LED_SHOW_FLAGS; | |
991 | set_leds(); | |
992 | } | |
993 | ||
994 | static inline unsigned char getleds(void) | |
995 | { | |
996 | struct kbd_struct *kbd = kbd_table + fg_console; | |
997 | unsigned char leds; | |
998 | int i; | |
999 | ||
1000 | if (kbd->ledmode == LED_SHOW_IOCTL) | |
1001 | return ledioctl; | |
1002 | ||
1003 | leds = kbd->ledflagstate; | |
1004 | ||
1005 | if (kbd->ledmode == LED_SHOW_MEM) { | |
1006 | for (i = 0; i < 3; i++) | |
1007 | if (ledptrs[i].valid) { | |
1008 | if (*ledptrs[i].addr & ledptrs[i].mask) | |
1009 | leds |= (1 << i); | |
1010 | else | |
1011 | leds &= ~(1 << i); | |
1012 | } | |
1013 | } | |
1014 | return leds; | |
1015 | } | |
1016 | ||
66d2a595 DT |
1017 | static int kbd_update_leds_helper(struct input_handle *handle, void *data) |
1018 | { | |
1019 | unsigned char leds = *(unsigned char *)data; | |
1020 | ||
1021 | if (test_bit(EV_LED, handle->dev->evbit)) { | |
1022 | input_inject_event(handle, EV_LED, LED_SCROLLL, !!(leds & 0x01)); | |
1023 | input_inject_event(handle, EV_LED, LED_NUML, !!(leds & 0x02)); | |
1024 | input_inject_event(handle, EV_LED, LED_CAPSL, !!(leds & 0x04)); | |
1025 | input_inject_event(handle, EV_SYN, SYN_REPORT, 0); | |
1026 | } | |
1027 | ||
1028 | return 0; | |
1029 | } | |
1030 | ||
1da177e4 | 1031 | /* |
66d2a595 DT |
1032 | * This is the tasklet that updates LED state on all keyboards |
1033 | * attached to the box. The reason we use tasklet is that we | |
1034 | * need to handle the scenario when keyboard handler is not | |
1035 | * registered yet but we already getting updates form VT to | |
1036 | * update led state. | |
1da177e4 | 1037 | */ |
1da177e4 LT |
1038 | static void kbd_bh(unsigned long dummy) |
1039 | { | |
1da177e4 LT |
1040 | unsigned char leds = getleds(); |
1041 | ||
1042 | if (leds != ledstate) { | |
66d2a595 DT |
1043 | input_handler_for_each_handle(&kbd_handler, &leds, |
1044 | kbd_update_leds_helper); | |
1045 | ledstate = leds; | |
1da177e4 | 1046 | } |
1da177e4 LT |
1047 | } |
1048 | ||
1049 | DECLARE_TASKLET_DISABLED(keyboard_tasklet, kbd_bh, 0); | |
1050 | ||
1da177e4 | 1051 | #if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_ALPHA) ||\ |
0b57ee9e AB |
1052 | defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_SPARC) ||\ |
1053 | defined(CONFIG_PARISC) || defined(CONFIG_SUPERH) ||\ | |
3a4e832c HCE |
1054 | (defined(CONFIG_ARM) && defined(CONFIG_KEYBOARD_ATKBD) && !defined(CONFIG_ARCH_RPC)) ||\ |
1055 | defined(CONFIG_AVR32) | |
1da177e4 LT |
1056 | |
1057 | #define HW_RAW(dev) (test_bit(EV_MSC, dev->evbit) && test_bit(MSC_RAW, dev->mscbit) &&\ | |
1058 | ((dev)->id.bustype == BUS_I8042) && ((dev)->id.vendor == 0x0001) && ((dev)->id.product == 0x0001)) | |
1059 | ||
0f5e560e | 1060 | static const unsigned short x86_keycodes[256] = |
1da177e4 LT |
1061 | { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, |
1062 | 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, | |
1063 | 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, | |
1064 | 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, | |
1065 | 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, | |
1066 | 80, 81, 82, 83, 84,118, 86, 87, 88,115,120,119,121,112,123, 92, | |
896cdc7b | 1067 | 284,285,309, 0,312, 91,327,328,329,331,333,335,336,337,338,339, |
1da177e4 LT |
1068 | 367,288,302,304,350, 89,334,326,267,126,268,269,125,347,348,349, |
1069 | 360,261,262,263,268,376,100,101,321,316,373,286,289,102,351,355, | |
72a42f24 HG |
1070 | 103,104,105,275,287,279,258,106,274,107,294,364,358,363,362,361, |
1071 | 291,108,381,281,290,272,292,305,280, 99,112,257,306,359,113,114, | |
1da177e4 LT |
1072 | 264,117,271,374,379,265,266, 93, 94, 95, 85,259,375,260, 90,116, |
1073 | 377,109,111,277,278,282,283,295,296,297,299,300,301,293,303,307, | |
1074 | 308,310,313,314,315,317,318,319,320,357,322,323,324,325,276,330, | |
1075 | 332,340,365,342,343,344,345,346,356,270,341,368,369,370,371,372 }; | |
1076 | ||
0b57ee9e | 1077 | #ifdef CONFIG_SPARC |
1da177e4 LT |
1078 | static int sparc_l1_a_state = 0; |
1079 | extern void sun_do_break(void); | |
1080 | #endif | |
1081 | ||
fe1e8604 | 1082 | static int emulate_raw(struct vc_data *vc, unsigned int keycode, |
1da177e4 LT |
1083 | unsigned char up_flag) |
1084 | { | |
896cdc7b | 1085 | int code; |
1da177e4 LT |
1086 | |
1087 | switch (keycode) { | |
1088 | case KEY_PAUSE: | |
1089 | put_queue(vc, 0xe1); | |
1090 | put_queue(vc, 0x1d | up_flag); | |
1091 | put_queue(vc, 0x45 | up_flag); | |
896cdc7b DT |
1092 | break; |
1093 | ||
b9ab58dd | 1094 | case KEY_HANGEUL: |
0ae051a1 DT |
1095 | if (!up_flag) |
1096 | put_queue(vc, 0xf2); | |
896cdc7b DT |
1097 | break; |
1098 | ||
1da177e4 | 1099 | case KEY_HANJA: |
0ae051a1 DT |
1100 | if (!up_flag) |
1101 | put_queue(vc, 0xf1); | |
896cdc7b | 1102 | break; |
1da177e4 | 1103 | |
896cdc7b DT |
1104 | case KEY_SYSRQ: |
1105 | /* | |
1106 | * Real AT keyboards (that's what we're trying | |
1107 | * to emulate here emit 0xe0 0x2a 0xe0 0x37 when | |
1108 | * pressing PrtSc/SysRq alone, but simply 0x54 | |
1109 | * when pressing Alt+PrtSc/SysRq. | |
1110 | */ | |
1111 | if (sysrq_alt) { | |
1112 | put_queue(vc, 0x54 | up_flag); | |
1113 | } else { | |
1114 | put_queue(vc, 0xe0); | |
1115 | put_queue(vc, 0x2a | up_flag); | |
1116 | put_queue(vc, 0xe0); | |
1117 | put_queue(vc, 0x37 | up_flag); | |
1118 | } | |
1119 | break; | |
1120 | ||
1121 | default: | |
1122 | if (keycode > 255) | |
1123 | return -1; | |
1da177e4 | 1124 | |
896cdc7b DT |
1125 | code = x86_keycodes[keycode]; |
1126 | if (!code) | |
1127 | return -1; | |
1da177e4 | 1128 | |
896cdc7b DT |
1129 | if (code & 0x100) |
1130 | put_queue(vc, 0xe0); | |
1131 | put_queue(vc, (code & 0x7f) | up_flag); | |
1da177e4 | 1132 | |
896cdc7b | 1133 | break; |
1da177e4 LT |
1134 | } |
1135 | ||
1136 | return 0; | |
1137 | } | |
1138 | ||
1139 | #else | |
1140 | ||
1141 | #define HW_RAW(dev) 0 | |
1142 | ||
1da177e4 LT |
1143 | static int emulate_raw(struct vc_data *vc, unsigned int keycode, unsigned char up_flag) |
1144 | { | |
1145 | if (keycode > 127) | |
1146 | return -1; | |
1147 | ||
1148 | put_queue(vc, keycode | up_flag); | |
1149 | return 0; | |
1150 | } | |
1151 | #endif | |
1152 | ||
1153 | static void kbd_rawcode(unsigned char data) | |
1154 | { | |
1155 | struct vc_data *vc = vc_cons[fg_console].d; | |
0c09b2ac | 1156 | kbd = kbd_table + vc->vc_num; |
1da177e4 LT |
1157 | if (kbd->kbdmode == VC_RAW) |
1158 | put_queue(vc, data); | |
1159 | } | |
1160 | ||
7d12e780 | 1161 | static void kbd_keycode(unsigned int keycode, int down, int hw_raw) |
1da177e4 LT |
1162 | { |
1163 | struct vc_data *vc = vc_cons[fg_console].d; | |
1164 | unsigned short keysym, *key_map; | |
1165 | unsigned char type, raw_mode; | |
1166 | struct tty_struct *tty; | |
1167 | int shift_final; | |
41ab4396 | 1168 | struct keyboard_notifier_param param = { .vc = vc, .value = keycode, .down = down }; |
1da177e4 LT |
1169 | |
1170 | tty = vc->vc_tty; | |
1171 | ||
1172 | if (tty && (!tty->driver_data)) { | |
1173 | /* No driver data? Strange. Okay we fix it then. */ | |
1174 | tty->driver_data = vc; | |
1175 | } | |
1176 | ||
0c09b2ac | 1177 | kbd = kbd_table + vc->vc_num; |
1da177e4 LT |
1178 | |
1179 | if (keycode == KEY_LEFTALT || keycode == KEY_RIGHTALT) | |
d2be8ee5 | 1180 | sysrq_alt = down ? keycode : 0; |
0b57ee9e | 1181 | #ifdef CONFIG_SPARC |
1da177e4 LT |
1182 | if (keycode == KEY_STOP) |
1183 | sparc_l1_a_state = down; | |
1184 | #endif | |
1185 | ||
1186 | rep = (down == 2); | |
1187 | ||
1da177e4 LT |
1188 | if ((raw_mode = (kbd->kbdmode == VC_RAW)) && !hw_raw) |
1189 | if (emulate_raw(vc, keycode, !down << 7)) | |
9e35d206 | 1190 | if (keycode < BTN_MISC && printk_ratelimit()) |
1da177e4 LT |
1191 | printk(KERN_WARNING "keyboard.c: can't emulate rawmode for keycode %d\n", keycode); |
1192 | ||
1193 | #ifdef CONFIG_MAGIC_SYSRQ /* Handle the SysRq Hack */ | |
1194 | if (keycode == KEY_SYSRQ && (sysrq_down || (down == 1 && sysrq_alt))) { | |
d2be8ee5 FR |
1195 | if (!sysrq_down) { |
1196 | sysrq_down = down; | |
1197 | sysrq_alt_use = sysrq_alt; | |
1198 | } | |
1da177e4 LT |
1199 | return; |
1200 | } | |
d2be8ee5 FR |
1201 | if (sysrq_down && !down && keycode == sysrq_alt_use) |
1202 | sysrq_down = 0; | |
1da177e4 | 1203 | if (sysrq_down && down && !rep) { |
7d12e780 | 1204 | handle_sysrq(kbd_sysrq_xlate[keycode], tty); |
1da177e4 LT |
1205 | return; |
1206 | } | |
1207 | #endif | |
0b57ee9e | 1208 | #ifdef CONFIG_SPARC |
1da177e4 LT |
1209 | if (keycode == KEY_A && sparc_l1_a_state) { |
1210 | sparc_l1_a_state = 0; | |
1211 | sun_do_break(); | |
1212 | } | |
1213 | #endif | |
1214 | ||
1215 | if (kbd->kbdmode == VC_MEDIUMRAW) { | |
1216 | /* | |
1217 | * This is extended medium raw mode, with keys above 127 | |
1218 | * encoded as 0, high 7 bits, low 7 bits, with the 0 bearing | |
1219 | * the 'up' flag if needed. 0 is reserved, so this shouldn't | |
1220 | * interfere with anything else. The two bytes after 0 will | |
1221 | * always have the up flag set not to interfere with older | |
1222 | * applications. This allows for 16384 different keycodes, | |
1223 | * which should be enough. | |
1224 | */ | |
1225 | if (keycode < 128) { | |
1226 | put_queue(vc, keycode | (!down << 7)); | |
1227 | } else { | |
1228 | put_queue(vc, !down << 7); | |
1229 | put_queue(vc, (keycode >> 7) | 0x80); | |
1230 | put_queue(vc, keycode | 0x80); | |
1231 | } | |
1232 | raw_mode = 1; | |
1233 | } | |
1234 | ||
1235 | if (down) | |
1236 | set_bit(keycode, key_down); | |
1237 | else | |
1238 | clear_bit(keycode, key_down); | |
1239 | ||
fe1e8604 DT |
1240 | if (rep && |
1241 | (!vc_kbd_mode(kbd, VC_REPEAT) || | |
f34d7a5b | 1242 | (tty && !L_ECHO(tty) && tty_chars_in_buffer(tty)))) { |
1da177e4 LT |
1243 | /* |
1244 | * Don't repeat a key if the input buffers are not empty and the | |
fe1e8604 | 1245 | * characters get aren't echoed locally. This makes key repeat |
1da177e4 LT |
1246 | * usable with slow applications and under heavy loads. |
1247 | */ | |
1248 | return; | |
1249 | } | |
1250 | ||
41ab4396 | 1251 | param.shift = shift_final = (shift_state | kbd->slockstate) ^ kbd->lockstate; |
0beb4f6f | 1252 | param.ledstate = kbd->ledflagstate; |
1da177e4 LT |
1253 | key_map = key_maps[shift_final]; |
1254 | ||
41ab4396 ST |
1255 | if (atomic_notifier_call_chain(&keyboard_notifier_list, KBD_KEYCODE, ¶m) == NOTIFY_STOP || !key_map) { |
1256 | atomic_notifier_call_chain(&keyboard_notifier_list, KBD_UNBOUND_KEYCODE, ¶m); | |
1da177e4 LT |
1257 | compute_shiftstate(); |
1258 | kbd->slockstate = 0; | |
1259 | return; | |
1260 | } | |
1261 | ||
161c6091 | 1262 | if (keycode >= NR_KEYS) |
b9ec4e10 | 1263 | if (keycode >= KEY_BRL_DOT1 && keycode <= KEY_BRL_DOT8) |
46a96546 | 1264 | keysym = U(K(KT_BRL, keycode - KEY_BRL_DOT1 + 1)); |
b9ec4e10 ST |
1265 | else |
1266 | return; | |
1267 | else | |
1268 | keysym = key_map[keycode]; | |
1da177e4 | 1269 | |
1da177e4 LT |
1270 | type = KTYP(keysym); |
1271 | ||
1272 | if (type < 0xf0) { | |
41ab4396 ST |
1273 | param.value = keysym; |
1274 | if (atomic_notifier_call_chain(&keyboard_notifier_list, KBD_UNICODE, ¶m) == NOTIFY_STOP) | |
1275 | return; | |
fe1e8604 DT |
1276 | if (down && !raw_mode) |
1277 | to_utf8(vc, keysym); | |
1da177e4 LT |
1278 | return; |
1279 | } | |
1280 | ||
1281 | type -= 0xf0; | |
1282 | ||
1da177e4 LT |
1283 | if (type == KT_LETTER) { |
1284 | type = KT_LATIN; | |
1285 | if (vc_kbd_led(kbd, VC_CAPSLOCK)) { | |
1286 | key_map = key_maps[shift_final ^ (1 << KG_SHIFT)]; | |
1287 | if (key_map) | |
1288 | keysym = key_map[keycode]; | |
1289 | } | |
1290 | } | |
41ab4396 ST |
1291 | param.value = keysym; |
1292 | ||
1293 | if (atomic_notifier_call_chain(&keyboard_notifier_list, KBD_KEYSYM, ¶m) == NOTIFY_STOP) | |
1294 | return; | |
1295 | ||
1296 | if (raw_mode && type != KT_SPEC && type != KT_SHIFT) | |
1297 | return; | |
1da177e4 | 1298 | |
7d12e780 | 1299 | (*k_handler[type])(vc, keysym & 0xff, !down); |
1da177e4 | 1300 | |
0beb4f6f | 1301 | param.ledstate = kbd->ledflagstate; |
41ab4396 ST |
1302 | atomic_notifier_call_chain(&keyboard_notifier_list, KBD_POST_KEYSYM, ¶m); |
1303 | ||
1da177e4 LT |
1304 | if (type != KT_SLOCK) |
1305 | kbd->slockstate = 0; | |
1306 | } | |
1307 | ||
fe1e8604 | 1308 | static void kbd_event(struct input_handle *handle, unsigned int event_type, |
1da177e4 LT |
1309 | unsigned int event_code, int value) |
1310 | { | |
21cea58e DT |
1311 | /* We are called with interrupts disabled, just take the lock */ |
1312 | spin_lock(&kbd_event_lock); | |
1313 | ||
1da177e4 LT |
1314 | if (event_type == EV_MSC && event_code == MSC_RAW && HW_RAW(handle->dev)) |
1315 | kbd_rawcode(value); | |
1316 | if (event_type == EV_KEY) | |
7d12e780 | 1317 | kbd_keycode(event_code, value, HW_RAW(handle->dev)); |
21cea58e DT |
1318 | |
1319 | spin_unlock(&kbd_event_lock); | |
1320 | ||
1da177e4 LT |
1321 | tasklet_schedule(&keyboard_tasklet); |
1322 | do_poke_blanked_console = 1; | |
1323 | schedule_console_callback(); | |
1324 | } | |
1325 | ||
0b7024ac DT |
1326 | static bool kbd_match(struct input_handler *handler, struct input_dev *dev) |
1327 | { | |
1328 | int i; | |
1329 | ||
1330 | if (test_bit(EV_SND, dev->evbit)) | |
1331 | return true; | |
1332 | ||
1333 | if (test_bit(EV_KEY, dev->evbit)) | |
1334 | for (i = KEY_RESERVED; i < BTN_MISC; i++) | |
1335 | if (test_bit(i, dev->keybit)) | |
1336 | return true; | |
1337 | ||
1338 | return false; | |
1339 | } | |
1340 | ||
1da177e4 LT |
1341 | /* |
1342 | * When a keyboard (or other input device) is found, the kbd_connect | |
1343 | * function is called. The function then looks at the device, and if it | |
1344 | * likes it, it can open it and get events from it. In this (kbd_connect) | |
1345 | * function, we should decide which VT to bind that keyboard to initially. | |
1346 | */ | |
5b2a0826 DT |
1347 | static int kbd_connect(struct input_handler *handler, struct input_dev *dev, |
1348 | const struct input_device_id *id) | |
1da177e4 LT |
1349 | { |
1350 | struct input_handle *handle; | |
5b2a0826 | 1351 | int error; |
1da177e4 | 1352 | |
22479e1c DT |
1353 | handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL); |
1354 | if (!handle) | |
5b2a0826 | 1355 | return -ENOMEM; |
1da177e4 LT |
1356 | |
1357 | handle->dev = dev; | |
1358 | handle->handler = handler; | |
fe1e8604 | 1359 | handle->name = "kbd"; |
1da177e4 | 1360 | |
5b2a0826 DT |
1361 | error = input_register_handle(handle); |
1362 | if (error) | |
1363 | goto err_free_handle; | |
1da177e4 | 1364 | |
5b2a0826 DT |
1365 | error = input_open_device(handle); |
1366 | if (error) | |
1367 | goto err_unregister_handle; | |
1368 | ||
1369 | return 0; | |
1370 | ||
1371 | err_unregister_handle: | |
1372 | input_unregister_handle(handle); | |
1373 | err_free_handle: | |
1374 | kfree(handle); | |
1375 | return error; | |
1da177e4 LT |
1376 | } |
1377 | ||
1378 | static void kbd_disconnect(struct input_handle *handle) | |
1379 | { | |
1380 | input_close_device(handle); | |
5b2a0826 | 1381 | input_unregister_handle(handle); |
1da177e4 LT |
1382 | kfree(handle); |
1383 | } | |
1384 | ||
c7e8dc6e DT |
1385 | /* |
1386 | * Start keyboard handler on the new keyboard by refreshing LED state to | |
1387 | * match the rest of the system. | |
1388 | */ | |
1389 | static void kbd_start(struct input_handle *handle) | |
1390 | { | |
c7e8dc6e | 1391 | tasklet_disable(&keyboard_tasklet); |
66d2a595 DT |
1392 | |
1393 | if (ledstate != 0xff) | |
1394 | kbd_update_leds_helper(handle, &ledstate); | |
1395 | ||
c7e8dc6e DT |
1396 | tasklet_enable(&keyboard_tasklet); |
1397 | } | |
1398 | ||
66e66118 | 1399 | static const struct input_device_id kbd_ids[] = { |
1da177e4 LT |
1400 | { |
1401 | .flags = INPUT_DEVICE_ID_MATCH_EVBIT, | |
7b19ada2 | 1402 | .evbit = { BIT_MASK(EV_KEY) }, |
1da177e4 | 1403 | }, |
fe1e8604 | 1404 | |
1da177e4 LT |
1405 | { |
1406 | .flags = INPUT_DEVICE_ID_MATCH_EVBIT, | |
7b19ada2 | 1407 | .evbit = { BIT_MASK(EV_SND) }, |
fe1e8604 | 1408 | }, |
1da177e4 LT |
1409 | |
1410 | { }, /* Terminating entry */ | |
1411 | }; | |
1412 | ||
1413 | MODULE_DEVICE_TABLE(input, kbd_ids); | |
1414 | ||
1415 | static struct input_handler kbd_handler = { | |
1416 | .event = kbd_event, | |
0b7024ac | 1417 | .match = kbd_match, |
1da177e4 LT |
1418 | .connect = kbd_connect, |
1419 | .disconnect = kbd_disconnect, | |
c7e8dc6e | 1420 | .start = kbd_start, |
1da177e4 LT |
1421 | .name = "kbd", |
1422 | .id_table = kbd_ids, | |
1423 | }; | |
1424 | ||
1425 | int __init kbd_init(void) | |
1426 | { | |
1427 | int i; | |
4263cf0f | 1428 | int error; |
1da177e4 | 1429 | |
2b192908 DT |
1430 | for (i = 0; i < MAX_NR_CONSOLES; i++) { |
1431 | kbd_table[i].ledflagstate = KBD_DEFLEDS; | |
1432 | kbd_table[i].default_ledflagstate = KBD_DEFLEDS; | |
1433 | kbd_table[i].ledmode = LED_SHOW_FLAGS; | |
1434 | kbd_table[i].lockstate = KBD_DEFLOCK; | |
1435 | kbd_table[i].slockstate = 0; | |
1436 | kbd_table[i].modeflags = KBD_DEFMODE; | |
2e8ecb9d | 1437 | kbd_table[i].kbdmode = default_utf8 ? VC_UNICODE : VC_XLATE; |
2b192908 | 1438 | } |
1da177e4 | 1439 | |
4263cf0f DT |
1440 | error = input_register_handler(&kbd_handler); |
1441 | if (error) | |
1442 | return error; | |
1da177e4 LT |
1443 | |
1444 | tasklet_enable(&keyboard_tasklet); | |
1445 | tasklet_schedule(&keyboard_tasklet); | |
1446 | ||
1447 | return 0; | |
1448 | } |