Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
1da177e4 LT |
2 | * Written for linux by Johan Myreen as a translation from |
3 | * the assembly version by Linus (with diacriticals added) | |
4 | * | |
5 | * Some additional features added by Christoph Niemann (ChN), March 1993 | |
6 | * | |
7 | * Loadable keymaps by Risto Kankkunen, May 1993 | |
8 | * | |
9 | * Diacriticals redone & other small changes, aeb@cwi.nl, June 1993 | |
10 | * Added decr/incr_console, dynamic keymaps, Unicode support, | |
11 | * dynamic function/string keys, led setting, Sept 1994 | |
12 | * `Sticky' modifier keys, 951006. | |
13 | * | |
14 | * 11-11-96: SAK should now work in the raw mode (Martin Mares) | |
fe1e8604 | 15 | * |
1da177e4 LT |
16 | * Modified to provide 'generic' keyboard support by Hamish Macdonald |
17 | * Merge with the m68k keyboard driver and split-off of the PC low-level | |
18 | * parts by Geert Uytterhoeven, May 1997 | |
19 | * | |
20 | * 27-05-97: Added support for the Magic SysRq Key (Martin Mares) | |
21 | * 30-07-98: Dead keys redone, aeb@cwi.nl. | |
22 | * 21-08-02: Converted to input API, major cleanup. (Vojtech Pavlik) | |
23 | */ | |
24 | ||
9272e9a2 DT |
25 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
26 | ||
759448f4 | 27 | #include <linux/consolemap.h> |
1da177e4 LT |
28 | #include <linux/module.h> |
29 | #include <linux/sched.h> | |
30 | #include <linux/tty.h> | |
31 | #include <linux/tty_flip.h> | |
32 | #include <linux/mm.h> | |
33 | #include <linux/string.h> | |
34 | #include <linux/init.h> | |
35 | #include <linux/slab.h> | |
36 | ||
37 | #include <linux/kbd_kern.h> | |
38 | #include <linux/kbd_diacr.h> | |
39 | #include <linux/vt_kern.h> | |
1da177e4 | 40 | #include <linux/input.h> |
83cc5ed3 | 41 | #include <linux/reboot.h> |
41ab4396 | 42 | #include <linux/notifier.h> |
b39b0440 | 43 | #include <linux/jiffies.h> |
6623d640 | 44 | #include <linux/uaccess.h> |
1da177e4 | 45 | |
98c2b373 GU |
46 | #include <asm/irq_regs.h> |
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 | ||
b2d0b7a0 JC |
56 | #if defined(CONFIG_X86) || defined(CONFIG_PARISC) |
57 | #include <asm/kbdleds.h> | |
1da177e4 | 58 | #else |
b2d0b7a0 JC |
59 | static inline int kbd_defleds(void) |
60 | { | |
61 | return 0; | |
62 | } | |
1da177e4 LT |
63 | #endif |
64 | ||
65 | #define KBD_DEFLOCK 0 | |
66 | ||
1da177e4 LT |
67 | /* |
68 | * Handler Tables. | |
69 | */ | |
70 | ||
71 | #define K_HANDLERS\ | |
72 | k_self, k_fn, k_spec, k_pad,\ | |
73 | k_dead, k_cons, k_cur, k_shift,\ | |
74 | k_meta, k_ascii, k_lock, k_lowercase,\ | |
b9ec4e10 | 75 | k_slock, k_dead2, k_brl, k_ignore |
1da177e4 | 76 | |
fe1e8604 | 77 | typedef void (k_handler_fn)(struct vc_data *vc, unsigned char value, |
7d12e780 | 78 | char up_flag); |
1da177e4 | 79 | static k_handler_fn K_HANDLERS; |
97f5f0cd | 80 | static k_handler_fn *k_handler[16] = { K_HANDLERS }; |
1da177e4 LT |
81 | |
82 | #define FN_HANDLERS\ | |
fe1e8604 DT |
83 | fn_null, fn_enter, fn_show_ptregs, fn_show_mem,\ |
84 | fn_show_state, fn_send_intr, fn_lastcons, fn_caps_toggle,\ | |
85 | fn_num, fn_hold, fn_scroll_forw, fn_scroll_back,\ | |
86 | fn_boot_it, fn_caps_on, fn_compose, fn_SAK,\ | |
87 | fn_dec_console, fn_inc_console, fn_spawn_con, fn_bare_num | |
1da177e4 | 88 | |
7d12e780 | 89 | typedef void (fn_handler_fn)(struct vc_data *vc); |
1da177e4 LT |
90 | static fn_handler_fn FN_HANDLERS; |
91 | static fn_handler_fn *fn_handler[] = { FN_HANDLERS }; | |
92 | ||
93 | /* | |
94 | * Variables exported for vt_ioctl.c | |
95 | */ | |
96 | ||
81af8d67 | 97 | struct vt_spawn_console vt_spawn_con = { |
ccc94256 | 98 | .lock = __SPIN_LOCK_UNLOCKED(vt_spawn_con.lock), |
81af8d67 EB |
99 | .pid = NULL, |
100 | .sig = 0, | |
101 | }; | |
1da177e4 | 102 | |
1da177e4 LT |
103 | |
104 | /* | |
105 | * Internal Data. | |
106 | */ | |
107 | ||
079c9534 AC |
108 | static struct kbd_struct kbd_table[MAX_NR_CONSOLES]; |
109 | static struct kbd_struct *kbd = kbd_table; | |
110 | ||
111 | /* maximum values each key_handler can handle */ | |
112 | static const int max_vals[] = { | |
113 | 255, ARRAY_SIZE(func_table) - 1, ARRAY_SIZE(fn_handler) - 1, NR_PAD - 1, | |
114 | NR_DEAD - 1, 255, 3, NR_SHIFT - 1, 255, NR_ASCII - 1, NR_LOCK - 1, | |
115 | 255, NR_LOCK - 1, 255, NR_BRL - 1 | |
116 | }; | |
117 | ||
118 | static const int NR_TYPES = ARRAY_SIZE(max_vals); | |
119 | ||
1da177e4 | 120 | static struct input_handler kbd_handler; |
21cea58e | 121 | static DEFINE_SPINLOCK(kbd_event_lock); |
3db1ddb7 | 122 | static DEFINE_SPINLOCK(led_lock); |
7b19ada2 | 123 | static unsigned long key_down[BITS_TO_LONGS(KEY_CNT)]; /* keyboard key bitmap */ |
1da177e4 | 124 | static unsigned char shift_down[NR_SHIFT]; /* shift state counters.. */ |
e0785572 | 125 | static bool dead_key_next; |
1da177e4 | 126 | static int npadch = -1; /* -1 or number assembled on pad */ |
b9ec4e10 | 127 | static unsigned int diacr; |
1da177e4 LT |
128 | static char rep; /* flag telling character repeat */ |
129 | ||
079c9534 AC |
130 | static int shift_state = 0; |
131 | ||
1da177e4 LT |
132 | static unsigned char ledstate = 0xff; /* undefined */ |
133 | static unsigned char ledioctl; | |
134 | ||
135 | static struct ledptr { | |
136 | unsigned int *addr; | |
137 | unsigned int mask; | |
138 | unsigned char valid:1; | |
139 | } ledptrs[3]; | |
140 | ||
41ab4396 ST |
141 | /* |
142 | * Notifier list for console keyboard events | |
143 | */ | |
144 | static ATOMIC_NOTIFIER_HEAD(keyboard_notifier_list); | |
145 | ||
146 | int register_keyboard_notifier(struct notifier_block *nb) | |
147 | { | |
148 | return atomic_notifier_chain_register(&keyboard_notifier_list, nb); | |
149 | } | |
150 | EXPORT_SYMBOL_GPL(register_keyboard_notifier); | |
151 | ||
152 | int unregister_keyboard_notifier(struct notifier_block *nb) | |
153 | { | |
154 | return atomic_notifier_chain_unregister(&keyboard_notifier_list, nb); | |
155 | } | |
156 | EXPORT_SYMBOL_GPL(unregister_keyboard_notifier); | |
157 | ||
1da177e4 | 158 | /* |
c8e4c772 MR |
159 | * Translation of scancodes to keycodes. We set them on only the first |
160 | * keyboard in the list that accepts the scancode and keycode. | |
161 | * Explanation for not choosing the first attached keyboard anymore: | |
162 | * USB keyboards for example have two event devices: one for all "normal" | |
163 | * keys and one for extra function keys (like "volume up", "make coffee", | |
164 | * etc.). So this means that scancodes for the extra function keys won't | |
165 | * be valid for the first event device, but will be for the second. | |
1da177e4 | 166 | */ |
66d2a595 DT |
167 | |
168 | struct getset_keycode_data { | |
8613e4c2 | 169 | struct input_keymap_entry ke; |
66d2a595 DT |
170 | int error; |
171 | }; | |
172 | ||
173 | static int getkeycode_helper(struct input_handle *handle, void *data) | |
174 | { | |
175 | struct getset_keycode_data *d = data; | |
176 | ||
8613e4c2 | 177 | d->error = input_get_keycode(handle->dev, &d->ke); |
66d2a595 DT |
178 | |
179 | return d->error == 0; /* stop as soon as we successfully get one */ | |
180 | } | |
181 | ||
079c9534 | 182 | static int getkeycode(unsigned int scancode) |
1da177e4 | 183 | { |
8613e4c2 MCC |
184 | struct getset_keycode_data d = { |
185 | .ke = { | |
186 | .flags = 0, | |
187 | .len = sizeof(scancode), | |
188 | .keycode = 0, | |
189 | }, | |
190 | .error = -ENODEV, | |
191 | }; | |
192 | ||
193 | memcpy(d.ke.scancode, &scancode, sizeof(scancode)); | |
c8e4c772 | 194 | |
66d2a595 | 195 | input_handler_for_each_handle(&kbd_handler, &d, getkeycode_helper); |
1da177e4 | 196 | |
8613e4c2 | 197 | return d.error ?: d.ke.keycode; |
66d2a595 DT |
198 | } |
199 | ||
200 | static int setkeycode_helper(struct input_handle *handle, void *data) | |
201 | { | |
202 | struct getset_keycode_data *d = data; | |
203 | ||
8613e4c2 | 204 | d->error = input_set_keycode(handle->dev, &d->ke); |
66d2a595 DT |
205 | |
206 | return d->error == 0; /* stop as soon as we successfully set one */ | |
1da177e4 LT |
207 | } |
208 | ||
079c9534 | 209 | static int setkeycode(unsigned int scancode, unsigned int keycode) |
1da177e4 | 210 | { |
8613e4c2 MCC |
211 | struct getset_keycode_data d = { |
212 | .ke = { | |
213 | .flags = 0, | |
214 | .len = sizeof(scancode), | |
215 | .keycode = keycode, | |
216 | }, | |
217 | .error = -ENODEV, | |
218 | }; | |
219 | ||
220 | memcpy(d.ke.scancode, &scancode, sizeof(scancode)); | |
c8e4c772 | 221 | |
66d2a595 | 222 | input_handler_for_each_handle(&kbd_handler, &d, setkeycode_helper); |
1da177e4 | 223 | |
66d2a595 | 224 | return d.error; |
1da177e4 LT |
225 | } |
226 | ||
227 | /* | |
18f7ad59 DT |
228 | * Making beeps and bells. Note that we prefer beeps to bells, but when |
229 | * shutting the sound off we do both. | |
1da177e4 | 230 | */ |
66d2a595 DT |
231 | |
232 | static int kd_sound_helper(struct input_handle *handle, void *data) | |
1da177e4 | 233 | { |
66d2a595 DT |
234 | unsigned int *hz = data; |
235 | struct input_dev *dev = handle->dev; | |
1da177e4 | 236 | |
66d2a595 | 237 | if (test_bit(EV_SND, dev->evbit)) { |
18f7ad59 | 238 | if (test_bit(SND_TONE, dev->sndbit)) { |
66d2a595 | 239 | input_inject_event(handle, EV_SND, SND_TONE, *hz); |
18f7ad59 DT |
240 | if (*hz) |
241 | return 0; | |
242 | } | |
243 | if (test_bit(SND_BELL, dev->sndbit)) | |
66d2a595 | 244 | input_inject_event(handle, EV_SND, SND_BELL, *hz ? 1 : 0); |
1da177e4 | 245 | } |
66d2a595 DT |
246 | |
247 | return 0; | |
248 | } | |
249 | ||
250 | static void kd_nosound(unsigned long ignored) | |
251 | { | |
252 | static unsigned int zero; | |
253 | ||
254 | input_handler_for_each_handle(&kbd_handler, &zero, kd_sound_helper); | |
1da177e4 LT |
255 | } |
256 | ||
8d06afab | 257 | static DEFINE_TIMER(kd_mksound_timer, kd_nosound, 0, 0); |
1da177e4 LT |
258 | |
259 | void kd_mksound(unsigned int hz, unsigned int ticks) | |
260 | { | |
66d2a595 | 261 | del_timer_sync(&kd_mksound_timer); |
1da177e4 | 262 | |
66d2a595 | 263 | input_handler_for_each_handle(&kbd_handler, &hz, kd_sound_helper); |
1da177e4 | 264 | |
66d2a595 DT |
265 | if (hz && ticks) |
266 | mod_timer(&kd_mksound_timer, jiffies + ticks); | |
1da177e4 | 267 | } |
f7511d5f | 268 | EXPORT_SYMBOL(kd_mksound); |
1da177e4 LT |
269 | |
270 | /* | |
271 | * Setting the keyboard rate. | |
272 | */ | |
273 | ||
66d2a595 | 274 | static int kbd_rate_helper(struct input_handle *handle, void *data) |
1da177e4 | 275 | { |
66d2a595 DT |
276 | struct input_dev *dev = handle->dev; |
277 | struct kbd_repeat *rep = data; | |
278 | ||
279 | if (test_bit(EV_REP, dev->evbit)) { | |
280 | ||
281 | if (rep[0].delay > 0) | |
282 | input_inject_event(handle, | |
283 | EV_REP, REP_DELAY, rep[0].delay); | |
284 | if (rep[0].period > 0) | |
285 | input_inject_event(handle, | |
286 | EV_REP, REP_PERIOD, rep[0].period); | |
287 | ||
288 | rep[1].delay = dev->rep[REP_DELAY]; | |
289 | rep[1].period = dev->rep[REP_PERIOD]; | |
1da177e4 | 290 | } |
66d2a595 DT |
291 | |
292 | return 0; | |
293 | } | |
294 | ||
295 | int kbd_rate(struct kbd_repeat *rep) | |
296 | { | |
297 | struct kbd_repeat data[2] = { *rep }; | |
298 | ||
299 | input_handler_for_each_handle(&kbd_handler, data, kbd_rate_helper); | |
300 | *rep = data[1]; /* Copy currently used settings */ | |
301 | ||
1da177e4 LT |
302 | return 0; |
303 | } | |
304 | ||
305 | /* | |
306 | * Helper Functions. | |
307 | */ | |
308 | static void put_queue(struct vc_data *vc, int ch) | |
309 | { | |
8ce73264 | 310 | struct tty_struct *tty = vc->port.tty; |
1da177e4 LT |
311 | |
312 | if (tty) { | |
313 | tty_insert_flip_char(tty, ch, 0); | |
4c2ef53d | 314 | tty_schedule_flip(tty); |
1da177e4 LT |
315 | } |
316 | } | |
317 | ||
318 | static void puts_queue(struct vc_data *vc, char *cp) | |
319 | { | |
8ce73264 | 320 | struct tty_struct *tty = vc->port.tty; |
1da177e4 LT |
321 | |
322 | if (!tty) | |
323 | return; | |
324 | ||
325 | while (*cp) { | |
326 | tty_insert_flip_char(tty, *cp, 0); | |
327 | cp++; | |
328 | } | |
4c2ef53d | 329 | tty_schedule_flip(tty); |
1da177e4 LT |
330 | } |
331 | ||
332 | static void applkey(struct vc_data *vc, int key, char mode) | |
333 | { | |
334 | static char buf[] = { 0x1b, 'O', 0x00, 0x00 }; | |
335 | ||
336 | buf[1] = (mode ? 'O' : '['); | |
337 | buf[2] = key; | |
338 | puts_queue(vc, buf); | |
339 | } | |
340 | ||
341 | /* | |
342 | * Many other routines do put_queue, but I think either | |
343 | * they produce ASCII, or they produce some user-assigned | |
344 | * string, and in both cases we might assume that it is | |
759448f4 | 345 | * in utf-8 already. |
1da177e4 | 346 | */ |
759448f4 | 347 | static void to_utf8(struct vc_data *vc, uint c) |
1da177e4 LT |
348 | { |
349 | if (c < 0x80) | |
350 | /* 0******* */ | |
351 | put_queue(vc, c); | |
fe1e8604 | 352 | else if (c < 0x800) { |
1da177e4 | 353 | /* 110***** 10****** */ |
fe1e8604 | 354 | put_queue(vc, 0xc0 | (c >> 6)); |
1da177e4 | 355 | put_queue(vc, 0x80 | (c & 0x3f)); |
e0785572 DT |
356 | } else if (c < 0x10000) { |
357 | if (c >= 0xD800 && c < 0xE000) | |
759448f4 JE |
358 | return; |
359 | if (c == 0xFFFF) | |
360 | return; | |
1da177e4 LT |
361 | /* 1110**** 10****** 10****** */ |
362 | put_queue(vc, 0xe0 | (c >> 12)); | |
363 | put_queue(vc, 0x80 | ((c >> 6) & 0x3f)); | |
364 | put_queue(vc, 0x80 | (c & 0x3f)); | |
e0785572 | 365 | } else if (c < 0x110000) { |
759448f4 JE |
366 | /* 11110*** 10****** 10****** 10****** */ |
367 | put_queue(vc, 0xf0 | (c >> 18)); | |
368 | put_queue(vc, 0x80 | ((c >> 12) & 0x3f)); | |
369 | put_queue(vc, 0x80 | ((c >> 6) & 0x3f)); | |
370 | put_queue(vc, 0x80 | (c & 0x3f)); | |
fe1e8604 | 371 | } |
1da177e4 LT |
372 | } |
373 | ||
fe1e8604 | 374 | /* |
1da177e4 LT |
375 | * Called after returning from RAW mode or when changing consoles - recompute |
376 | * shift_down[] and shift_state from key_down[] maybe called when keymap is | |
079c9534 AC |
377 | * undefined, so that shiftkey release is seen. The caller must hold the |
378 | * kbd_event_lock. | |
1da177e4 | 379 | */ |
079c9534 AC |
380 | |
381 | static void do_compute_shiftstate(void) | |
1da177e4 LT |
382 | { |
383 | unsigned int i, j, k, sym, val; | |
384 | ||
385 | shift_state = 0; | |
386 | memset(shift_down, 0, sizeof(shift_down)); | |
fe1e8604 | 387 | |
1da177e4 LT |
388 | for (i = 0; i < ARRAY_SIZE(key_down); i++) { |
389 | ||
390 | if (!key_down[i]) | |
391 | continue; | |
392 | ||
393 | k = i * BITS_PER_LONG; | |
394 | ||
395 | for (j = 0; j < BITS_PER_LONG; j++, k++) { | |
396 | ||
397 | if (!test_bit(k, key_down)) | |
398 | continue; | |
399 | ||
400 | sym = U(key_maps[0][k]); | |
401 | if (KTYP(sym) != KT_SHIFT && KTYP(sym) != KT_SLOCK) | |
402 | continue; | |
403 | ||
404 | val = KVAL(sym); | |
405 | if (val == KVAL(K_CAPSSHIFT)) | |
406 | val = KVAL(K_SHIFT); | |
407 | ||
408 | shift_down[val]++; | |
409 | shift_state |= (1 << val); | |
410 | } | |
411 | } | |
412 | } | |
413 | ||
079c9534 AC |
414 | /* We still have to export this method to vt.c */ |
415 | void compute_shiftstate(void) | |
416 | { | |
417 | unsigned long flags; | |
418 | spin_lock_irqsave(&kbd_event_lock, flags); | |
419 | do_compute_shiftstate(); | |
420 | spin_unlock_irqrestore(&kbd_event_lock, flags); | |
421 | } | |
422 | ||
1da177e4 LT |
423 | /* |
424 | * We have a combining character DIACR here, followed by the character CH. | |
425 | * If the combination occurs in the table, return the corresponding value. | |
426 | * Otherwise, if CH is a space or equals DIACR, return DIACR. | |
427 | * Otherwise, conclude that DIACR was not combining after all, | |
428 | * queue it and return CH. | |
429 | */ | |
b9ec4e10 | 430 | static unsigned int handle_diacr(struct vc_data *vc, unsigned int ch) |
1da177e4 | 431 | { |
b9ec4e10 | 432 | unsigned int d = diacr; |
1da177e4 LT |
433 | unsigned int i; |
434 | ||
435 | diacr = 0; | |
436 | ||
b9ec4e10 ST |
437 | if ((d & ~0xff) == BRL_UC_ROW) { |
438 | if ((ch & ~0xff) == BRL_UC_ROW) | |
439 | return d | ch; | |
440 | } else { | |
441 | for (i = 0; i < accent_table_size; i++) | |
442 | if (accent_table[i].diacr == d && accent_table[i].base == ch) | |
443 | return accent_table[i].result; | |
1da177e4 LT |
444 | } |
445 | ||
b9ec4e10 | 446 | if (ch == ' ' || ch == (BRL_UC_ROW|0) || ch == d) |
1da177e4 LT |
447 | return d; |
448 | ||
b9ec4e10 | 449 | if (kbd->kbdmode == VC_UNICODE) |
04c71976 ST |
450 | to_utf8(vc, d); |
451 | else { | |
452 | int c = conv_uni_to_8bit(d); | |
453 | if (c != -1) | |
454 | put_queue(vc, c); | |
455 | } | |
b9ec4e10 | 456 | |
1da177e4 LT |
457 | return ch; |
458 | } | |
459 | ||
460 | /* | |
461 | * Special function handlers | |
462 | */ | |
7d12e780 | 463 | static void fn_enter(struct vc_data *vc) |
1da177e4 LT |
464 | { |
465 | if (diacr) { | |
b9ec4e10 | 466 | if (kbd->kbdmode == VC_UNICODE) |
04c71976 ST |
467 | to_utf8(vc, diacr); |
468 | else { | |
469 | int c = conv_uni_to_8bit(diacr); | |
470 | if (c != -1) | |
471 | put_queue(vc, c); | |
472 | } | |
1da177e4 LT |
473 | diacr = 0; |
474 | } | |
e0785572 | 475 | |
1da177e4 LT |
476 | put_queue(vc, 13); |
477 | if (vc_kbd_mode(kbd, VC_CRLF)) | |
478 | put_queue(vc, 10); | |
479 | } | |
480 | ||
7d12e780 | 481 | static void fn_caps_toggle(struct vc_data *vc) |
1da177e4 LT |
482 | { |
483 | if (rep) | |
484 | return; | |
e0785572 | 485 | |
1da177e4 LT |
486 | chg_vc_kbd_led(kbd, VC_CAPSLOCK); |
487 | } | |
488 | ||
7d12e780 | 489 | static void fn_caps_on(struct vc_data *vc) |
1da177e4 LT |
490 | { |
491 | if (rep) | |
492 | return; | |
e0785572 | 493 | |
1da177e4 LT |
494 | set_vc_kbd_led(kbd, VC_CAPSLOCK); |
495 | } | |
496 | ||
7d12e780 | 497 | static void fn_show_ptregs(struct vc_data *vc) |
1da177e4 | 498 | { |
7d12e780 | 499 | struct pt_regs *regs = get_irq_regs(); |
e0785572 | 500 | |
1da177e4 LT |
501 | if (regs) |
502 | show_regs(regs); | |
503 | } | |
504 | ||
7d12e780 | 505 | static void fn_hold(struct vc_data *vc) |
1da177e4 | 506 | { |
8ce73264 | 507 | struct tty_struct *tty = vc->port.tty; |
1da177e4 LT |
508 | |
509 | if (rep || !tty) | |
510 | return; | |
511 | ||
512 | /* | |
513 | * Note: SCROLLOCK will be set (cleared) by stop_tty (start_tty); | |
514 | * these routines are also activated by ^S/^Q. | |
515 | * (And SCROLLOCK can also be set by the ioctl KDSKBLED.) | |
516 | */ | |
517 | if (tty->stopped) | |
518 | start_tty(tty); | |
519 | else | |
520 | stop_tty(tty); | |
521 | } | |
522 | ||
7d12e780 | 523 | static void fn_num(struct vc_data *vc) |
1da177e4 | 524 | { |
e0785572 | 525 | if (vc_kbd_mode(kbd, VC_APPLIC)) |
1da177e4 LT |
526 | applkey(vc, 'P', 1); |
527 | else | |
7d12e780 | 528 | fn_bare_num(vc); |
1da177e4 LT |
529 | } |
530 | ||
531 | /* | |
532 | * Bind this to Shift-NumLock if you work in application keypad mode | |
533 | * but want to be able to change the NumLock flag. | |
534 | * Bind this to NumLock if you prefer that the NumLock key always | |
535 | * changes the NumLock flag. | |
536 | */ | |
7d12e780 | 537 | static void fn_bare_num(struct vc_data *vc) |
1da177e4 LT |
538 | { |
539 | if (!rep) | |
540 | chg_vc_kbd_led(kbd, VC_NUMLOCK); | |
541 | } | |
542 | ||
7d12e780 | 543 | static void fn_lastcons(struct vc_data *vc) |
1da177e4 LT |
544 | { |
545 | /* switch to the last used console, ChN */ | |
546 | set_console(last_console); | |
547 | } | |
548 | ||
7d12e780 | 549 | static void fn_dec_console(struct vc_data *vc) |
1da177e4 LT |
550 | { |
551 | int i, cur = fg_console; | |
552 | ||
553 | /* Currently switching? Queue this next switch relative to that. */ | |
554 | if (want_console != -1) | |
555 | cur = want_console; | |
556 | ||
fe1e8604 | 557 | for (i = cur - 1; i != cur; i--) { |
1da177e4 | 558 | if (i == -1) |
fe1e8604 | 559 | i = MAX_NR_CONSOLES - 1; |
1da177e4 LT |
560 | if (vc_cons_allocated(i)) |
561 | break; | |
562 | } | |
563 | set_console(i); | |
564 | } | |
565 | ||
7d12e780 | 566 | static void fn_inc_console(struct vc_data *vc) |
1da177e4 LT |
567 | { |
568 | int i, cur = fg_console; | |
569 | ||
570 | /* Currently switching? Queue this next switch relative to that. */ | |
571 | if (want_console != -1) | |
572 | cur = want_console; | |
573 | ||
574 | for (i = cur+1; i != cur; i++) { | |
575 | if (i == MAX_NR_CONSOLES) | |
576 | i = 0; | |
577 | if (vc_cons_allocated(i)) | |
578 | break; | |
579 | } | |
580 | set_console(i); | |
581 | } | |
582 | ||
7d12e780 | 583 | static void fn_send_intr(struct vc_data *vc) |
1da177e4 | 584 | { |
8ce73264 | 585 | struct tty_struct *tty = vc->port.tty; |
1da177e4 LT |
586 | |
587 | if (!tty) | |
588 | return; | |
589 | tty_insert_flip_char(tty, 0, TTY_BREAK); | |
4c2ef53d | 590 | tty_schedule_flip(tty); |
1da177e4 LT |
591 | } |
592 | ||
7d12e780 | 593 | static void fn_scroll_forw(struct vc_data *vc) |
1da177e4 LT |
594 | { |
595 | scrollfront(vc, 0); | |
596 | } | |
597 | ||
7d12e780 | 598 | static void fn_scroll_back(struct vc_data *vc) |
1da177e4 LT |
599 | { |
600 | scrollback(vc, 0); | |
601 | } | |
602 | ||
7d12e780 | 603 | static void fn_show_mem(struct vc_data *vc) |
1da177e4 | 604 | { |
b2b755b5 | 605 | show_mem(0); |
1da177e4 LT |
606 | } |
607 | ||
7d12e780 | 608 | static void fn_show_state(struct vc_data *vc) |
1da177e4 LT |
609 | { |
610 | show_state(); | |
611 | } | |
612 | ||
7d12e780 | 613 | static void fn_boot_it(struct vc_data *vc) |
1da177e4 LT |
614 | { |
615 | ctrl_alt_del(); | |
616 | } | |
617 | ||
7d12e780 | 618 | static void fn_compose(struct vc_data *vc) |
1da177e4 | 619 | { |
e0785572 | 620 | dead_key_next = true; |
1da177e4 LT |
621 | } |
622 | ||
7d12e780 | 623 | static void fn_spawn_con(struct vc_data *vc) |
1da177e4 | 624 | { |
81af8d67 EB |
625 | spin_lock(&vt_spawn_con.lock); |
626 | if (vt_spawn_con.pid) | |
627 | if (kill_pid(vt_spawn_con.pid, vt_spawn_con.sig, 1)) { | |
628 | put_pid(vt_spawn_con.pid); | |
629 | vt_spawn_con.pid = NULL; | |
630 | } | |
631 | spin_unlock(&vt_spawn_con.lock); | |
1da177e4 LT |
632 | } |
633 | ||
7d12e780 | 634 | static void fn_SAK(struct vc_data *vc) |
1da177e4 | 635 | { |
8b6312f4 | 636 | struct work_struct *SAK_work = &vc_cons[fg_console].SAK_work; |
8b6312f4 | 637 | schedule_work(SAK_work); |
1da177e4 LT |
638 | } |
639 | ||
7d12e780 | 640 | static void fn_null(struct vc_data *vc) |
1da177e4 | 641 | { |
079c9534 | 642 | do_compute_shiftstate(); |
1da177e4 LT |
643 | } |
644 | ||
645 | /* | |
646 | * Special key handlers | |
647 | */ | |
7d12e780 | 648 | static void k_ignore(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
649 | { |
650 | } | |
651 | ||
7d12e780 | 652 | static void k_spec(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
653 | { |
654 | if (up_flag) | |
655 | return; | |
656 | if (value >= ARRAY_SIZE(fn_handler)) | |
657 | return; | |
fe1e8604 | 658 | if ((kbd->kbdmode == VC_RAW || |
9fc3de9c AT |
659 | kbd->kbdmode == VC_MEDIUMRAW || |
660 | kbd->kbdmode == VC_OFF) && | |
1da177e4 LT |
661 | value != KVAL(K_SAK)) |
662 | return; /* SAK is allowed even in raw mode */ | |
7d12e780 | 663 | fn_handler[value](vc); |
1da177e4 LT |
664 | } |
665 | ||
7d12e780 | 666 | static void k_lowercase(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 667 | { |
9272e9a2 | 668 | pr_err("k_lowercase was called - impossible\n"); |
1da177e4 LT |
669 | } |
670 | ||
7d12e780 | 671 | static void k_unicode(struct vc_data *vc, unsigned int value, char up_flag) |
1da177e4 LT |
672 | { |
673 | if (up_flag) | |
674 | return; /* no action, if this is a key release */ | |
675 | ||
676 | if (diacr) | |
677 | value = handle_diacr(vc, value); | |
678 | ||
679 | if (dead_key_next) { | |
e0785572 | 680 | dead_key_next = false; |
1da177e4 LT |
681 | diacr = value; |
682 | return; | |
683 | } | |
b9ec4e10 | 684 | if (kbd->kbdmode == VC_UNICODE) |
04c71976 ST |
685 | to_utf8(vc, value); |
686 | else { | |
687 | int c = conv_uni_to_8bit(value); | |
688 | if (c != -1) | |
689 | put_queue(vc, c); | |
690 | } | |
1da177e4 LT |
691 | } |
692 | ||
693 | /* | |
694 | * Handle dead key. Note that we now may have several | |
695 | * dead keys modifying the same character. Very useful | |
696 | * for Vietnamese. | |
697 | */ | |
7d12e780 | 698 | static void k_deadunicode(struct vc_data *vc, unsigned int value, char up_flag) |
1da177e4 LT |
699 | { |
700 | if (up_flag) | |
701 | return; | |
e0785572 | 702 | |
1da177e4 LT |
703 | diacr = (diacr ? handle_diacr(vc, value) : value); |
704 | } | |
705 | ||
7d12e780 | 706 | static void k_self(struct vc_data *vc, unsigned char value, char up_flag) |
b9ec4e10 | 707 | { |
d2187ebd | 708 | k_unicode(vc, conv_8bit_to_uni(value), up_flag); |
b9ec4e10 ST |
709 | } |
710 | ||
7d12e780 | 711 | static void k_dead2(struct vc_data *vc, unsigned char value, char up_flag) |
b9ec4e10 | 712 | { |
7d12e780 | 713 | k_deadunicode(vc, value, up_flag); |
b9ec4e10 ST |
714 | } |
715 | ||
1da177e4 LT |
716 | /* |
717 | * Obsolete - for backwards compatibility only | |
718 | */ | |
7d12e780 | 719 | static void k_dead(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 720 | { |
0f5e560e | 721 | static const unsigned char ret_diacr[NR_DEAD] = {'`', '\'', '^', '~', '"', ',' }; |
e0785572 DT |
722 | |
723 | k_deadunicode(vc, ret_diacr[value], up_flag); | |
1da177e4 LT |
724 | } |
725 | ||
7d12e780 | 726 | static void k_cons(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
727 | { |
728 | if (up_flag) | |
729 | return; | |
e0785572 | 730 | |
1da177e4 LT |
731 | set_console(value); |
732 | } | |
733 | ||
7d12e780 | 734 | static void k_fn(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 735 | { |
1da177e4 LT |
736 | if (up_flag) |
737 | return; | |
e0785572 DT |
738 | |
739 | if ((unsigned)value < ARRAY_SIZE(func_table)) { | |
1da177e4 LT |
740 | if (func_table[value]) |
741 | puts_queue(vc, func_table[value]); | |
742 | } else | |
9272e9a2 | 743 | pr_err("k_fn called with value=%d\n", value); |
1da177e4 LT |
744 | } |
745 | ||
7d12e780 | 746 | static void k_cur(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 747 | { |
e52b29c2 | 748 | static const char cur_chars[] = "BDCA"; |
1da177e4 LT |
749 | |
750 | if (up_flag) | |
751 | return; | |
e0785572 | 752 | |
1da177e4 LT |
753 | applkey(vc, cur_chars[value], vc_kbd_mode(kbd, VC_CKMODE)); |
754 | } | |
755 | ||
7d12e780 | 756 | static void k_pad(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 757 | { |
0f5e560e AM |
758 | static const char pad_chars[] = "0123456789+-*/\015,.?()#"; |
759 | static const char app_map[] = "pqrstuvwxylSRQMnnmPQS"; | |
1da177e4 LT |
760 | |
761 | if (up_flag) | |
762 | return; /* no action, if this is a key release */ | |
763 | ||
764 | /* kludge... shift forces cursor/number keys */ | |
765 | if (vc_kbd_mode(kbd, VC_APPLIC) && !shift_down[KG_SHIFT]) { | |
766 | applkey(vc, app_map[value], 1); | |
767 | return; | |
768 | } | |
769 | ||
e0785572 DT |
770 | if (!vc_kbd_led(kbd, VC_NUMLOCK)) { |
771 | ||
1da177e4 | 772 | switch (value) { |
e0785572 DT |
773 | case KVAL(K_PCOMMA): |
774 | case KVAL(K_PDOT): | |
775 | k_fn(vc, KVAL(K_REMOVE), 0); | |
776 | return; | |
777 | case KVAL(K_P0): | |
778 | k_fn(vc, KVAL(K_INSERT), 0); | |
779 | return; | |
780 | case KVAL(K_P1): | |
781 | k_fn(vc, KVAL(K_SELECT), 0); | |
782 | return; | |
783 | case KVAL(K_P2): | |
784 | k_cur(vc, KVAL(K_DOWN), 0); | |
785 | return; | |
786 | case KVAL(K_P3): | |
787 | k_fn(vc, KVAL(K_PGDN), 0); | |
788 | return; | |
789 | case KVAL(K_P4): | |
790 | k_cur(vc, KVAL(K_LEFT), 0); | |
791 | return; | |
792 | case KVAL(K_P6): | |
793 | k_cur(vc, KVAL(K_RIGHT), 0); | |
794 | return; | |
795 | case KVAL(K_P7): | |
796 | k_fn(vc, KVAL(K_FIND), 0); | |
797 | return; | |
798 | case KVAL(K_P8): | |
799 | k_cur(vc, KVAL(K_UP), 0); | |
800 | return; | |
801 | case KVAL(K_P9): | |
802 | k_fn(vc, KVAL(K_PGUP), 0); | |
803 | return; | |
804 | case KVAL(K_P5): | |
805 | applkey(vc, 'G', vc_kbd_mode(kbd, VC_APPLIC)); | |
806 | return; | |
1da177e4 | 807 | } |
e0785572 | 808 | } |
1da177e4 LT |
809 | |
810 | put_queue(vc, pad_chars[value]); | |
811 | if (value == KVAL(K_PENTER) && vc_kbd_mode(kbd, VC_CRLF)) | |
812 | put_queue(vc, 10); | |
813 | } | |
814 | ||
7d12e780 | 815 | static void k_shift(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
816 | { |
817 | int old_state = shift_state; | |
818 | ||
819 | if (rep) | |
820 | return; | |
821 | /* | |
822 | * Mimic typewriter: | |
823 | * a CapsShift key acts like Shift but undoes CapsLock | |
824 | */ | |
825 | if (value == KVAL(K_CAPSSHIFT)) { | |
826 | value = KVAL(K_SHIFT); | |
827 | if (!up_flag) | |
828 | clr_vc_kbd_led(kbd, VC_CAPSLOCK); | |
829 | } | |
830 | ||
831 | if (up_flag) { | |
832 | /* | |
833 | * handle the case that two shift or control | |
834 | * keys are depressed simultaneously | |
835 | */ | |
836 | if (shift_down[value]) | |
837 | shift_down[value]--; | |
838 | } else | |
839 | shift_down[value]++; | |
840 | ||
841 | if (shift_down[value]) | |
842 | shift_state |= (1 << value); | |
843 | else | |
844 | shift_state &= ~(1 << value); | |
845 | ||
846 | /* kludge */ | |
847 | if (up_flag && shift_state != old_state && npadch != -1) { | |
848 | if (kbd->kbdmode == VC_UNICODE) | |
759448f4 | 849 | to_utf8(vc, npadch); |
1da177e4 LT |
850 | else |
851 | put_queue(vc, npadch & 0xff); | |
852 | npadch = -1; | |
853 | } | |
854 | } | |
855 | ||
7d12e780 | 856 | static void k_meta(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
857 | { |
858 | if (up_flag) | |
859 | return; | |
860 | ||
861 | if (vc_kbd_mode(kbd, VC_META)) { | |
862 | put_queue(vc, '\033'); | |
863 | put_queue(vc, value); | |
864 | } else | |
865 | put_queue(vc, value | 0x80); | |
866 | } | |
867 | ||
7d12e780 | 868 | static void k_ascii(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
869 | { |
870 | int base; | |
871 | ||
872 | if (up_flag) | |
873 | return; | |
874 | ||
875 | if (value < 10) { | |
876 | /* decimal input of code, while Alt depressed */ | |
877 | base = 10; | |
878 | } else { | |
879 | /* hexadecimal input of code, while AltGr depressed */ | |
880 | value -= 10; | |
881 | base = 16; | |
882 | } | |
883 | ||
884 | if (npadch == -1) | |
885 | npadch = value; | |
886 | else | |
887 | npadch = npadch * base + value; | |
888 | } | |
889 | ||
7d12e780 | 890 | static void k_lock(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
891 | { |
892 | if (up_flag || rep) | |
893 | return; | |
e0785572 | 894 | |
1da177e4 LT |
895 | chg_vc_kbd_lock(kbd, value); |
896 | } | |
897 | ||
7d12e780 | 898 | static void k_slock(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 899 | { |
7d12e780 | 900 | k_shift(vc, value, up_flag); |
1da177e4 LT |
901 | if (up_flag || rep) |
902 | return; | |
e0785572 | 903 | |
1da177e4 LT |
904 | chg_vc_kbd_slock(kbd, value); |
905 | /* try to make Alt, oops, AltGr and such work */ | |
906 | if (!key_maps[kbd->lockstate ^ kbd->slockstate]) { | |
907 | kbd->slockstate = 0; | |
908 | chg_vc_kbd_slock(kbd, value); | |
909 | } | |
910 | } | |
911 | ||
b9ec4e10 | 912 | /* by default, 300ms interval for combination release */ |
77426d72 ST |
913 | static unsigned brl_timeout = 300; |
914 | MODULE_PARM_DESC(brl_timeout, "Braille keys release delay in ms (0 for commit on first key release)"); | |
915 | module_param(brl_timeout, uint, 0644); | |
916 | ||
917 | static unsigned brl_nbchords = 1; | |
918 | MODULE_PARM_DESC(brl_nbchords, "Number of chords that produce a braille pattern (0 for dead chords)"); | |
919 | module_param(brl_nbchords, uint, 0644); | |
920 | ||
7d12e780 | 921 | static void k_brlcommit(struct vc_data *vc, unsigned int pattern, char up_flag) |
77426d72 ST |
922 | { |
923 | static unsigned long chords; | |
924 | static unsigned committed; | |
925 | ||
926 | if (!brl_nbchords) | |
7d12e780 | 927 | k_deadunicode(vc, BRL_UC_ROW | pattern, up_flag); |
77426d72 ST |
928 | else { |
929 | committed |= pattern; | |
930 | chords++; | |
931 | if (chords == brl_nbchords) { | |
7d12e780 | 932 | k_unicode(vc, BRL_UC_ROW | committed, up_flag); |
77426d72 ST |
933 | chords = 0; |
934 | committed = 0; | |
935 | } | |
936 | } | |
937 | } | |
938 | ||
7d12e780 | 939 | static void k_brl(struct vc_data *vc, unsigned char value, char up_flag) |
b9ec4e10 | 940 | { |
e0785572 | 941 | static unsigned pressed, committing; |
b9ec4e10 ST |
942 | static unsigned long releasestart; |
943 | ||
944 | if (kbd->kbdmode != VC_UNICODE) { | |
945 | if (!up_flag) | |
9272e9a2 | 946 | pr_warning("keyboard mode must be unicode for braille patterns\n"); |
b9ec4e10 ST |
947 | return; |
948 | } | |
949 | ||
950 | if (!value) { | |
7d12e780 | 951 | k_unicode(vc, BRL_UC_ROW, up_flag); |
b9ec4e10 ST |
952 | return; |
953 | } | |
954 | ||
955 | if (value > 8) | |
956 | return; | |
957 | ||
e0785572 | 958 | if (!up_flag) { |
b9ec4e10 ST |
959 | pressed |= 1 << (value - 1); |
960 | if (!brl_timeout) | |
961 | committing = pressed; | |
e0785572 DT |
962 | } else if (brl_timeout) { |
963 | if (!committing || | |
964 | time_after(jiffies, | |
965 | releasestart + msecs_to_jiffies(brl_timeout))) { | |
966 | committing = pressed; | |
967 | releasestart = jiffies; | |
968 | } | |
969 | pressed &= ~(1 << (value - 1)); | |
970 | if (!pressed && committing) { | |
971 | k_brlcommit(vc, committing, 0); | |
972 | committing = 0; | |
973 | } | |
974 | } else { | |
975 | if (committing) { | |
976 | k_brlcommit(vc, committing, 0); | |
977 | committing = 0; | |
978 | } | |
979 | pressed &= ~(1 << (value - 1)); | |
b9ec4e10 ST |
980 | } |
981 | } | |
982 | ||
1da177e4 LT |
983 | /* |
984 | * The leds display either (i) the status of NumLock, CapsLock, ScrollLock, | |
985 | * or (ii) whatever pattern of lights people want to show using KDSETLED, | |
986 | * or (iii) specified bits of specified words in kernel memory. | |
987 | */ | |
3db1ddb7 | 988 | static unsigned char getledstate(void) |
1da177e4 LT |
989 | { |
990 | return ledstate; | |
991 | } | |
992 | ||
993 | void setledstate(struct kbd_struct *kbd, unsigned int led) | |
994 | { | |
079c9534 | 995 | unsigned long flags; |
3db1ddb7 | 996 | spin_lock_irqsave(&led_lock, flags); |
1da177e4 LT |
997 | if (!(led & ~7)) { |
998 | ledioctl = led; | |
999 | kbd->ledmode = LED_SHOW_IOCTL; | |
1000 | } else | |
1001 | kbd->ledmode = LED_SHOW_FLAGS; | |
e0785572 | 1002 | |
1da177e4 | 1003 | set_leds(); |
3db1ddb7 | 1004 | spin_unlock_irqrestore(&led_lock, flags); |
1da177e4 LT |
1005 | } |
1006 | ||
1007 | static inline unsigned char getleds(void) | |
1008 | { | |
1009 | struct kbd_struct *kbd = kbd_table + fg_console; | |
1010 | unsigned char leds; | |
1011 | int i; | |
1012 | ||
1013 | if (kbd->ledmode == LED_SHOW_IOCTL) | |
1014 | return ledioctl; | |
1015 | ||
1016 | leds = kbd->ledflagstate; | |
1017 | ||
1018 | if (kbd->ledmode == LED_SHOW_MEM) { | |
1019 | for (i = 0; i < 3; i++) | |
1020 | if (ledptrs[i].valid) { | |
1021 | if (*ledptrs[i].addr & ledptrs[i].mask) | |
1022 | leds |= (1 << i); | |
1023 | else | |
1024 | leds &= ~(1 << i); | |
1025 | } | |
1026 | } | |
1027 | return leds; | |
1028 | } | |
1029 | ||
66d2a595 DT |
1030 | static int kbd_update_leds_helper(struct input_handle *handle, void *data) |
1031 | { | |
1032 | unsigned char leds = *(unsigned char *)data; | |
1033 | ||
1034 | if (test_bit(EV_LED, handle->dev->evbit)) { | |
1035 | input_inject_event(handle, EV_LED, LED_SCROLLL, !!(leds & 0x01)); | |
1036 | input_inject_event(handle, EV_LED, LED_NUML, !!(leds & 0x02)); | |
1037 | input_inject_event(handle, EV_LED, LED_CAPSL, !!(leds & 0x04)); | |
1038 | input_inject_event(handle, EV_SYN, SYN_REPORT, 0); | |
1039 | } | |
1040 | ||
1041 | return 0; | |
1042 | } | |
1043 | ||
079c9534 AC |
1044 | /** |
1045 | * vt_get_leds - helper for braille console | |
1046 | * @console: console to read | |
1047 | * @flag: flag we want to check | |
1048 | * | |
1049 | * Check the status of a keyboard led flag and report it back | |
1050 | */ | |
1051 | int vt_get_leds(int console, int flag) | |
1052 | { | |
079c9534 AC |
1053 | struct kbd_struct * kbd = kbd_table + console; |
1054 | int ret; | |
3db1ddb7 | 1055 | unsigned long flags; |
079c9534 | 1056 | |
3db1ddb7 | 1057 | spin_lock_irqsave(&led_lock, flags); |
079c9534 | 1058 | ret = vc_kbd_led(kbd, flag); |
3db1ddb7 | 1059 | spin_unlock_irqrestore(&led_lock, flags); |
079c9534 AC |
1060 | |
1061 | return ret; | |
1062 | } | |
1063 | EXPORT_SYMBOL_GPL(vt_get_leds); | |
1064 | ||
1065 | /** | |
1066 | * vt_set_led_state - set LED state of a console | |
1067 | * @console: console to set | |
1068 | * @leds: LED bits | |
1069 | * | |
1070 | * Set the LEDs on a console. This is a wrapper for the VT layer | |
1071 | * so that we can keep kbd knowledge internal | |
1072 | */ | |
1073 | void vt_set_led_state(int console, int leds) | |
1074 | { | |
1075 | struct kbd_struct * kbd = kbd_table + console; | |
1076 | setledstate(kbd, leds); | |
1077 | } | |
1078 | ||
1079 | /** | |
1080 | * vt_kbd_con_start - Keyboard side of console start | |
1081 | * @console: console | |
1082 | * | |
1083 | * Handle console start. This is a wrapper for the VT layer | |
1084 | * so that we can keep kbd knowledge internal | |
84f904ec AC |
1085 | * |
1086 | * FIXME: We eventually need to hold the kbd lock here to protect | |
1087 | * the LED updating. We can't do it yet because fn_hold calls stop_tty | |
1088 | * and start_tty under the kbd_event_lock, while normal tty paths | |
1089 | * don't hold the lock. We probably need to split out an LED lock | |
1090 | * but not during an -rc release! | |
079c9534 AC |
1091 | */ |
1092 | void vt_kbd_con_start(int console) | |
1093 | { | |
1094 | struct kbd_struct * kbd = kbd_table + console; | |
3db1ddb7 AC |
1095 | unsigned long flags; |
1096 | spin_lock_irqsave(&led_lock, flags); | |
079c9534 AC |
1097 | clr_vc_kbd_led(kbd, VC_SCROLLOCK); |
1098 | set_leds(); | |
3db1ddb7 | 1099 | spin_unlock_irqrestore(&led_lock, flags); |
079c9534 AC |
1100 | } |
1101 | ||
1102 | /** | |
1103 | * vt_kbd_con_stop - Keyboard side of console stop | |
1104 | * @console: console | |
1105 | * | |
1106 | * Handle console stop. This is a wrapper for the VT layer | |
1107 | * so that we can keep kbd knowledge internal | |
1108 | */ | |
1109 | void vt_kbd_con_stop(int console) | |
1110 | { | |
1111 | struct kbd_struct * kbd = kbd_table + console; | |
3db1ddb7 AC |
1112 | unsigned long flags; |
1113 | spin_lock_irqsave(&led_lock, flags); | |
079c9534 AC |
1114 | set_vc_kbd_led(kbd, VC_SCROLLOCK); |
1115 | set_leds(); | |
3db1ddb7 | 1116 | spin_unlock_irqrestore(&led_lock, flags); |
079c9534 AC |
1117 | } |
1118 | ||
1da177e4 | 1119 | /* |
66d2a595 DT |
1120 | * This is the tasklet that updates LED state on all keyboards |
1121 | * attached to the box. The reason we use tasklet is that we | |
1122 | * need to handle the scenario when keyboard handler is not | |
84f904ec | 1123 | * registered yet but we already getting updates from the VT to |
66d2a595 | 1124 | * update led state. |
1da177e4 | 1125 | */ |
1da177e4 LT |
1126 | static void kbd_bh(unsigned long dummy) |
1127 | { | |
3db1ddb7 AC |
1128 | unsigned char leds; |
1129 | unsigned long flags; | |
1130 | ||
1131 | spin_lock_irqsave(&led_lock, flags); | |
1132 | leds = getleds(); | |
1133 | spin_unlock_irqrestore(&led_lock, flags); | |
1da177e4 LT |
1134 | |
1135 | if (leds != ledstate) { | |
66d2a595 DT |
1136 | input_handler_for_each_handle(&kbd_handler, &leds, |
1137 | kbd_update_leds_helper); | |
1138 | ledstate = leds; | |
1da177e4 | 1139 | } |
1da177e4 LT |
1140 | } |
1141 | ||
1142 | DECLARE_TASKLET_DISABLED(keyboard_tasklet, kbd_bh, 0); | |
1143 | ||
1da177e4 | 1144 | #if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_ALPHA) ||\ |
0b57ee9e AB |
1145 | defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_SPARC) ||\ |
1146 | defined(CONFIG_PARISC) || defined(CONFIG_SUPERH) ||\ | |
3a4e832c HCE |
1147 | (defined(CONFIG_ARM) && defined(CONFIG_KEYBOARD_ATKBD) && !defined(CONFIG_ARCH_RPC)) ||\ |
1148 | defined(CONFIG_AVR32) | |
1da177e4 LT |
1149 | |
1150 | #define HW_RAW(dev) (test_bit(EV_MSC, dev->evbit) && test_bit(MSC_RAW, dev->mscbit) &&\ | |
1151 | ((dev)->id.bustype == BUS_I8042) && ((dev)->id.vendor == 0x0001) && ((dev)->id.product == 0x0001)) | |
1152 | ||
0f5e560e | 1153 | static const unsigned short x86_keycodes[256] = |
1da177e4 LT |
1154 | { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, |
1155 | 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, | |
1156 | 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, | |
1157 | 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, | |
1158 | 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, | |
1159 | 80, 81, 82, 83, 84,118, 86, 87, 88,115,120,119,121,112,123, 92, | |
896cdc7b | 1160 | 284,285,309, 0,312, 91,327,328,329,331,333,335,336,337,338,339, |
1da177e4 LT |
1161 | 367,288,302,304,350, 89,334,326,267,126,268,269,125,347,348,349, |
1162 | 360,261,262,263,268,376,100,101,321,316,373,286,289,102,351,355, | |
72a42f24 HG |
1163 | 103,104,105,275,287,279,258,106,274,107,294,364,358,363,362,361, |
1164 | 291,108,381,281,290,272,292,305,280, 99,112,257,306,359,113,114, | |
1da177e4 LT |
1165 | 264,117,271,374,379,265,266, 93, 94, 95, 85,259,375,260, 90,116, |
1166 | 377,109,111,277,278,282,283,295,296,297,299,300,301,293,303,307, | |
1167 | 308,310,313,314,315,317,318,319,320,357,322,323,324,325,276,330, | |
1168 | 332,340,365,342,343,344,345,346,356,270,341,368,369,370,371,372 }; | |
1169 | ||
0b57ee9e | 1170 | #ifdef CONFIG_SPARC |
e0785572 | 1171 | static int sparc_l1_a_state; |
1da177e4 LT |
1172 | extern void sun_do_break(void); |
1173 | #endif | |
1174 | ||
fe1e8604 | 1175 | static int emulate_raw(struct vc_data *vc, unsigned int keycode, |
1da177e4 LT |
1176 | unsigned char up_flag) |
1177 | { | |
896cdc7b | 1178 | int code; |
1da177e4 LT |
1179 | |
1180 | switch (keycode) { | |
896cdc7b | 1181 | |
e0785572 DT |
1182 | case KEY_PAUSE: |
1183 | put_queue(vc, 0xe1); | |
1184 | put_queue(vc, 0x1d | up_flag); | |
1185 | put_queue(vc, 0x45 | up_flag); | |
1186 | break; | |
896cdc7b | 1187 | |
e0785572 DT |
1188 | case KEY_HANGEUL: |
1189 | if (!up_flag) | |
1190 | put_queue(vc, 0xf2); | |
1191 | break; | |
1da177e4 | 1192 | |
e0785572 DT |
1193 | case KEY_HANJA: |
1194 | if (!up_flag) | |
1195 | put_queue(vc, 0xf1); | |
1196 | break; | |
896cdc7b | 1197 | |
e0785572 DT |
1198 | case KEY_SYSRQ: |
1199 | /* | |
1200 | * Real AT keyboards (that's what we're trying | |
1201 | * to emulate here emit 0xe0 0x2a 0xe0 0x37 when | |
1202 | * pressing PrtSc/SysRq alone, but simply 0x54 | |
1203 | * when pressing Alt+PrtSc/SysRq. | |
1204 | */ | |
1205 | if (test_bit(KEY_LEFTALT, key_down) || | |
1206 | test_bit(KEY_RIGHTALT, key_down)) { | |
1207 | put_queue(vc, 0x54 | up_flag); | |
1208 | } else { | |
1209 | put_queue(vc, 0xe0); | |
1210 | put_queue(vc, 0x2a | up_flag); | |
1211 | put_queue(vc, 0xe0); | |
1212 | put_queue(vc, 0x37 | up_flag); | |
1213 | } | |
1214 | break; | |
1da177e4 | 1215 | |
e0785572 DT |
1216 | default: |
1217 | if (keycode > 255) | |
1218 | return -1; | |
1da177e4 | 1219 | |
e0785572 DT |
1220 | code = x86_keycodes[keycode]; |
1221 | if (!code) | |
1222 | return -1; | |
1da177e4 | 1223 | |
e0785572 DT |
1224 | if (code & 0x100) |
1225 | put_queue(vc, 0xe0); | |
1226 | put_queue(vc, (code & 0x7f) | up_flag); | |
1227 | ||
1228 | break; | |
1da177e4 LT |
1229 | } |
1230 | ||
1231 | return 0; | |
1232 | } | |
1233 | ||
1234 | #else | |
1235 | ||
1236 | #define HW_RAW(dev) 0 | |
1237 | ||
1da177e4 LT |
1238 | static int emulate_raw(struct vc_data *vc, unsigned int keycode, unsigned char up_flag) |
1239 | { | |
1240 | if (keycode > 127) | |
1241 | return -1; | |
1242 | ||
1243 | put_queue(vc, keycode | up_flag); | |
1244 | return 0; | |
1245 | } | |
1246 | #endif | |
1247 | ||
1248 | static void kbd_rawcode(unsigned char data) | |
1249 | { | |
1250 | struct vc_data *vc = vc_cons[fg_console].d; | |
e0785572 | 1251 | |
0c09b2ac | 1252 | kbd = kbd_table + vc->vc_num; |
1da177e4 LT |
1253 | if (kbd->kbdmode == VC_RAW) |
1254 | put_queue(vc, data); | |
1255 | } | |
1256 | ||
7d12e780 | 1257 | static void kbd_keycode(unsigned int keycode, int down, int hw_raw) |
1da177e4 LT |
1258 | { |
1259 | struct vc_data *vc = vc_cons[fg_console].d; | |
1260 | unsigned short keysym, *key_map; | |
e0785572 DT |
1261 | unsigned char type; |
1262 | bool raw_mode; | |
1da177e4 LT |
1263 | struct tty_struct *tty; |
1264 | int shift_final; | |
41ab4396 | 1265 | struct keyboard_notifier_param param = { .vc = vc, .value = keycode, .down = down }; |
e0785572 | 1266 | int rc; |
1da177e4 | 1267 | |
8ce73264 | 1268 | tty = vc->port.tty; |
1da177e4 LT |
1269 | |
1270 | if (tty && (!tty->driver_data)) { | |
1271 | /* No driver data? Strange. Okay we fix it then. */ | |
1272 | tty->driver_data = vc; | |
1273 | } | |
1274 | ||
0c09b2ac | 1275 | kbd = kbd_table + vc->vc_num; |
1da177e4 | 1276 | |
0b57ee9e | 1277 | #ifdef CONFIG_SPARC |
1da177e4 LT |
1278 | if (keycode == KEY_STOP) |
1279 | sparc_l1_a_state = down; | |
1280 | #endif | |
1281 | ||
1282 | rep = (down == 2); | |
1283 | ||
e0785572 DT |
1284 | raw_mode = (kbd->kbdmode == VC_RAW); |
1285 | if (raw_mode && !hw_raw) | |
1da177e4 | 1286 | if (emulate_raw(vc, keycode, !down << 7)) |
9e35d206 | 1287 | if (keycode < BTN_MISC && printk_ratelimit()) |
9272e9a2 DT |
1288 | pr_warning("can't emulate rawmode for keycode %d\n", |
1289 | keycode); | |
1da177e4 | 1290 | |
0b57ee9e | 1291 | #ifdef CONFIG_SPARC |
1da177e4 | 1292 | if (keycode == KEY_A && sparc_l1_a_state) { |
e0785572 | 1293 | sparc_l1_a_state = false; |
1da177e4 LT |
1294 | sun_do_break(); |
1295 | } | |
1296 | #endif | |
1297 | ||
1298 | if (kbd->kbdmode == VC_MEDIUMRAW) { | |
1299 | /* | |
1300 | * This is extended medium raw mode, with keys above 127 | |
1301 | * encoded as 0, high 7 bits, low 7 bits, with the 0 bearing | |
1302 | * the 'up' flag if needed. 0 is reserved, so this shouldn't | |
1303 | * interfere with anything else. The two bytes after 0 will | |
1304 | * always have the up flag set not to interfere with older | |
1305 | * applications. This allows for 16384 different keycodes, | |
1306 | * which should be enough. | |
1307 | */ | |
1308 | if (keycode < 128) { | |
1309 | put_queue(vc, keycode | (!down << 7)); | |
1310 | } else { | |
1311 | put_queue(vc, !down << 7); | |
1312 | put_queue(vc, (keycode >> 7) | 0x80); | |
1313 | put_queue(vc, keycode | 0x80); | |
1314 | } | |
e0785572 | 1315 | raw_mode = true; |
1da177e4 LT |
1316 | } |
1317 | ||
1318 | if (down) | |
1319 | set_bit(keycode, key_down); | |
1320 | else | |
1321 | clear_bit(keycode, key_down); | |
1322 | ||
fe1e8604 DT |
1323 | if (rep && |
1324 | (!vc_kbd_mode(kbd, VC_REPEAT) || | |
f34d7a5b | 1325 | (tty && !L_ECHO(tty) && tty_chars_in_buffer(tty)))) { |
1da177e4 LT |
1326 | /* |
1327 | * Don't repeat a key if the input buffers are not empty and the | |
fe1e8604 | 1328 | * characters get aren't echoed locally. This makes key repeat |
1da177e4 LT |
1329 | * usable with slow applications and under heavy loads. |
1330 | */ | |
1331 | return; | |
1332 | } | |
1333 | ||
41ab4396 | 1334 | param.shift = shift_final = (shift_state | kbd->slockstate) ^ kbd->lockstate; |
0beb4f6f | 1335 | param.ledstate = kbd->ledflagstate; |
1da177e4 LT |
1336 | key_map = key_maps[shift_final]; |
1337 | ||
e0785572 DT |
1338 | rc = atomic_notifier_call_chain(&keyboard_notifier_list, |
1339 | KBD_KEYCODE, ¶m); | |
1340 | if (rc == NOTIFY_STOP || !key_map) { | |
1341 | atomic_notifier_call_chain(&keyboard_notifier_list, | |
1342 | KBD_UNBOUND_KEYCODE, ¶m); | |
079c9534 | 1343 | do_compute_shiftstate(); |
1da177e4 LT |
1344 | kbd->slockstate = 0; |
1345 | return; | |
1346 | } | |
1347 | ||
e0785572 | 1348 | if (keycode < NR_KEYS) |
b9ec4e10 | 1349 | keysym = key_map[keycode]; |
e0785572 DT |
1350 | else if (keycode >= KEY_BRL_DOT1 && keycode <= KEY_BRL_DOT8) |
1351 | keysym = U(K(KT_BRL, keycode - KEY_BRL_DOT1 + 1)); | |
1352 | else | |
1353 | return; | |
1da177e4 | 1354 | |
1da177e4 LT |
1355 | type = KTYP(keysym); |
1356 | ||
1357 | if (type < 0xf0) { | |
41ab4396 | 1358 | param.value = keysym; |
e0785572 DT |
1359 | rc = atomic_notifier_call_chain(&keyboard_notifier_list, |
1360 | KBD_UNICODE, ¶m); | |
1361 | if (rc != NOTIFY_STOP) | |
1362 | if (down && !raw_mode) | |
1363 | to_utf8(vc, keysym); | |
1da177e4 LT |
1364 | return; |
1365 | } | |
1366 | ||
1367 | type -= 0xf0; | |
1368 | ||
1da177e4 LT |
1369 | if (type == KT_LETTER) { |
1370 | type = KT_LATIN; | |
1371 | if (vc_kbd_led(kbd, VC_CAPSLOCK)) { | |
1372 | key_map = key_maps[shift_final ^ (1 << KG_SHIFT)]; | |
1373 | if (key_map) | |
1374 | keysym = key_map[keycode]; | |
1375 | } | |
1376 | } | |
41ab4396 | 1377 | |
e0785572 DT |
1378 | param.value = keysym; |
1379 | rc = atomic_notifier_call_chain(&keyboard_notifier_list, | |
1380 | KBD_KEYSYM, ¶m); | |
1381 | if (rc == NOTIFY_STOP) | |
41ab4396 ST |
1382 | return; |
1383 | ||
9fc3de9c | 1384 | if ((raw_mode || kbd->kbdmode == VC_OFF) && type != KT_SPEC && type != KT_SHIFT) |
41ab4396 | 1385 | return; |
1da177e4 | 1386 | |
7d12e780 | 1387 | (*k_handler[type])(vc, keysym & 0xff, !down); |
1da177e4 | 1388 | |
0beb4f6f | 1389 | param.ledstate = kbd->ledflagstate; |
41ab4396 ST |
1390 | atomic_notifier_call_chain(&keyboard_notifier_list, KBD_POST_KEYSYM, ¶m); |
1391 | ||
1da177e4 LT |
1392 | if (type != KT_SLOCK) |
1393 | kbd->slockstate = 0; | |
1394 | } | |
1395 | ||
fe1e8604 | 1396 | static void kbd_event(struct input_handle *handle, unsigned int event_type, |
1da177e4 LT |
1397 | unsigned int event_code, int value) |
1398 | { | |
21cea58e DT |
1399 | /* We are called with interrupts disabled, just take the lock */ |
1400 | spin_lock(&kbd_event_lock); | |
1401 | ||
1da177e4 LT |
1402 | if (event_type == EV_MSC && event_code == MSC_RAW && HW_RAW(handle->dev)) |
1403 | kbd_rawcode(value); | |
1404 | if (event_type == EV_KEY) | |
7d12e780 | 1405 | kbd_keycode(event_code, value, HW_RAW(handle->dev)); |
21cea58e DT |
1406 | |
1407 | spin_unlock(&kbd_event_lock); | |
1408 | ||
1da177e4 LT |
1409 | tasklet_schedule(&keyboard_tasklet); |
1410 | do_poke_blanked_console = 1; | |
1411 | schedule_console_callback(); | |
1412 | } | |
1413 | ||
0b7024ac DT |
1414 | static bool kbd_match(struct input_handler *handler, struct input_dev *dev) |
1415 | { | |
1416 | int i; | |
1417 | ||
1418 | if (test_bit(EV_SND, dev->evbit)) | |
1419 | return true; | |
1420 | ||
53c1f764 | 1421 | if (test_bit(EV_KEY, dev->evbit)) { |
0b7024ac DT |
1422 | for (i = KEY_RESERVED; i < BTN_MISC; i++) |
1423 | if (test_bit(i, dev->keybit)) | |
1424 | return true; | |
53c1f764 ST |
1425 | for (i = KEY_BRL_DOT1; i <= KEY_BRL_DOT10; i++) |
1426 | if (test_bit(i, dev->keybit)) | |
1427 | return true; | |
1428 | } | |
0b7024ac DT |
1429 | |
1430 | return false; | |
1431 | } | |
1432 | ||
1da177e4 LT |
1433 | /* |
1434 | * When a keyboard (or other input device) is found, the kbd_connect | |
1435 | * function is called. The function then looks at the device, and if it | |
1436 | * likes it, it can open it and get events from it. In this (kbd_connect) | |
1437 | * function, we should decide which VT to bind that keyboard to initially. | |
1438 | */ | |
5b2a0826 DT |
1439 | static int kbd_connect(struct input_handler *handler, struct input_dev *dev, |
1440 | const struct input_device_id *id) | |
1da177e4 LT |
1441 | { |
1442 | struct input_handle *handle; | |
5b2a0826 | 1443 | int error; |
1da177e4 | 1444 | |
22479e1c DT |
1445 | handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL); |
1446 | if (!handle) | |
5b2a0826 | 1447 | return -ENOMEM; |
1da177e4 LT |
1448 | |
1449 | handle->dev = dev; | |
1450 | handle->handler = handler; | |
fe1e8604 | 1451 | handle->name = "kbd"; |
1da177e4 | 1452 | |
5b2a0826 DT |
1453 | error = input_register_handle(handle); |
1454 | if (error) | |
1455 | goto err_free_handle; | |
1da177e4 | 1456 | |
5b2a0826 DT |
1457 | error = input_open_device(handle); |
1458 | if (error) | |
1459 | goto err_unregister_handle; | |
1460 | ||
1461 | return 0; | |
1462 | ||
1463 | err_unregister_handle: | |
1464 | input_unregister_handle(handle); | |
1465 | err_free_handle: | |
1466 | kfree(handle); | |
1467 | return error; | |
1da177e4 LT |
1468 | } |
1469 | ||
1470 | static void kbd_disconnect(struct input_handle *handle) | |
1471 | { | |
1472 | input_close_device(handle); | |
5b2a0826 | 1473 | input_unregister_handle(handle); |
1da177e4 LT |
1474 | kfree(handle); |
1475 | } | |
1476 | ||
c7e8dc6e DT |
1477 | /* |
1478 | * Start keyboard handler on the new keyboard by refreshing LED state to | |
1479 | * match the rest of the system. | |
1480 | */ | |
1481 | static void kbd_start(struct input_handle *handle) | |
1482 | { | |
c7e8dc6e | 1483 | tasklet_disable(&keyboard_tasklet); |
66d2a595 DT |
1484 | |
1485 | if (ledstate != 0xff) | |
1486 | kbd_update_leds_helper(handle, &ledstate); | |
1487 | ||
c7e8dc6e DT |
1488 | tasklet_enable(&keyboard_tasklet); |
1489 | } | |
1490 | ||
66e66118 | 1491 | static const struct input_device_id kbd_ids[] = { |
1da177e4 | 1492 | { |
6aeed479 AC |
1493 | .flags = INPUT_DEVICE_ID_MATCH_EVBIT, |
1494 | .evbit = { BIT_MASK(EV_KEY) }, | |
1495 | }, | |
fe1e8604 | 1496 | |
1da177e4 | 1497 | { |
6aeed479 AC |
1498 | .flags = INPUT_DEVICE_ID_MATCH_EVBIT, |
1499 | .evbit = { BIT_MASK(EV_SND) }, | |
1500 | }, | |
1da177e4 LT |
1501 | |
1502 | { }, /* Terminating entry */ | |
1503 | }; | |
1504 | ||
1505 | MODULE_DEVICE_TABLE(input, kbd_ids); | |
1506 | ||
1507 | static struct input_handler kbd_handler = { | |
1508 | .event = kbd_event, | |
0b7024ac | 1509 | .match = kbd_match, |
1da177e4 LT |
1510 | .connect = kbd_connect, |
1511 | .disconnect = kbd_disconnect, | |
c7e8dc6e | 1512 | .start = kbd_start, |
1da177e4 LT |
1513 | .name = "kbd", |
1514 | .id_table = kbd_ids, | |
1515 | }; | |
1516 | ||
1517 | int __init kbd_init(void) | |
1518 | { | |
1519 | int i; | |
4263cf0f | 1520 | int error; |
1da177e4 | 1521 | |
6aeed479 | 1522 | for (i = 0; i < MAX_NR_CONSOLES; i++) { |
b2d0b7a0 JC |
1523 | kbd_table[i].ledflagstate = kbd_defleds(); |
1524 | kbd_table[i].default_ledflagstate = kbd_defleds(); | |
2b192908 DT |
1525 | kbd_table[i].ledmode = LED_SHOW_FLAGS; |
1526 | kbd_table[i].lockstate = KBD_DEFLOCK; | |
1527 | kbd_table[i].slockstate = 0; | |
1528 | kbd_table[i].modeflags = KBD_DEFMODE; | |
2e8ecb9d | 1529 | kbd_table[i].kbdmode = default_utf8 ? VC_UNICODE : VC_XLATE; |
2b192908 | 1530 | } |
1da177e4 | 1531 | |
4263cf0f DT |
1532 | error = input_register_handler(&kbd_handler); |
1533 | if (error) | |
1534 | return error; | |
1da177e4 LT |
1535 | |
1536 | tasklet_enable(&keyboard_tasklet); | |
1537 | tasklet_schedule(&keyboard_tasklet); | |
1538 | ||
1539 | return 0; | |
1540 | } | |
247ff8e6 AC |
1541 | |
1542 | /* Ioctl support code */ | |
1543 | ||
1544 | /** | |
1545 | * vt_do_diacrit - diacritical table updates | |
1546 | * @cmd: ioctl request | |
1547 | * @up: pointer to user data for ioctl | |
1548 | * @perm: permissions check computed by caller | |
1549 | * | |
1550 | * Update the diacritical tables atomically and safely. Lock them | |
1551 | * against simultaneous keypresses | |
1552 | */ | |
1553 | int vt_do_diacrit(unsigned int cmd, void __user *up, int perm) | |
1554 | { | |
1555 | struct kbdiacrs __user *a = up; | |
1556 | unsigned long flags; | |
1557 | int asize; | |
1558 | int ret = 0; | |
1559 | ||
1560 | switch (cmd) { | |
1561 | case KDGKBDIACR: | |
1562 | { | |
1563 | struct kbdiacr *diacr; | |
1564 | int i; | |
1565 | ||
1566 | diacr = kmalloc(MAX_DIACR * sizeof(struct kbdiacr), | |
1567 | GFP_KERNEL); | |
1568 | if (diacr == NULL) | |
1569 | return -ENOMEM; | |
1570 | ||
1571 | /* Lock the diacriticals table, make a copy and then | |
1572 | copy it after we unlock */ | |
1573 | spin_lock_irqsave(&kbd_event_lock, flags); | |
1574 | ||
1575 | asize = accent_table_size; | |
1576 | for (i = 0; i < asize; i++) { | |
1577 | diacr[i].diacr = conv_uni_to_8bit( | |
1578 | accent_table[i].diacr); | |
1579 | diacr[i].base = conv_uni_to_8bit( | |
1580 | accent_table[i].base); | |
1581 | diacr[i].result = conv_uni_to_8bit( | |
1582 | accent_table[i].result); | |
1583 | } | |
1584 | spin_unlock_irqrestore(&kbd_event_lock, flags); | |
1585 | ||
1586 | if (put_user(asize, &a->kb_cnt)) | |
1587 | ret = -EFAULT; | |
1588 | else if (copy_to_user(a->kbdiacr, diacr, | |
1589 | asize * sizeof(struct kbdiacr))) | |
1590 | ret = -EFAULT; | |
1591 | kfree(diacr); | |
1592 | return ret; | |
1593 | } | |
1594 | case KDGKBDIACRUC: | |
1595 | { | |
1596 | struct kbdiacrsuc __user *a = up; | |
1597 | void *buf; | |
1598 | ||
1599 | buf = kmalloc(MAX_DIACR * sizeof(struct kbdiacruc), | |
1600 | GFP_KERNEL); | |
1601 | if (buf == NULL) | |
1602 | return -ENOMEM; | |
1603 | ||
1604 | /* Lock the diacriticals table, make a copy and then | |
1605 | copy it after we unlock */ | |
1606 | spin_lock_irqsave(&kbd_event_lock, flags); | |
1607 | ||
1608 | asize = accent_table_size; | |
1609 | memcpy(buf, accent_table, asize * sizeof(struct kbdiacruc)); | |
1610 | ||
1611 | spin_unlock_irqrestore(&kbd_event_lock, flags); | |
1612 | ||
1613 | if (put_user(asize, &a->kb_cnt)) | |
1614 | ret = -EFAULT; | |
1615 | else if (copy_to_user(a->kbdiacruc, buf, | |
1616 | asize*sizeof(struct kbdiacruc))) | |
1617 | ret = -EFAULT; | |
1618 | kfree(buf); | |
1619 | return ret; | |
1620 | } | |
1621 | ||
1622 | case KDSKBDIACR: | |
1623 | { | |
1624 | struct kbdiacrs __user *a = up; | |
1625 | struct kbdiacr *diacr = NULL; | |
1626 | unsigned int ct; | |
1627 | int i; | |
1628 | ||
1629 | if (!perm) | |
1630 | return -EPERM; | |
1631 | if (get_user(ct, &a->kb_cnt)) | |
1632 | return -EFAULT; | |
1633 | if (ct >= MAX_DIACR) | |
1634 | return -EINVAL; | |
1635 | ||
1636 | if (ct) { | |
1637 | diacr = kmalloc(sizeof(struct kbdiacr) * ct, | |
1638 | GFP_KERNEL); | |
1639 | if (diacr == NULL) | |
1640 | return -ENOMEM; | |
1641 | ||
1642 | if (copy_from_user(diacr, a->kbdiacr, | |
1643 | sizeof(struct kbdiacr) * ct)) { | |
1644 | kfree(diacr); | |
1645 | return -EFAULT; | |
1646 | } | |
1647 | } | |
1648 | ||
1649 | spin_lock_irqsave(&kbd_event_lock, flags); | |
1650 | accent_table_size = ct; | |
1651 | for (i = 0; i < ct; i++) { | |
1652 | accent_table[i].diacr = | |
1653 | conv_8bit_to_uni(diacr[i].diacr); | |
1654 | accent_table[i].base = | |
1655 | conv_8bit_to_uni(diacr[i].base); | |
1656 | accent_table[i].result = | |
1657 | conv_8bit_to_uni(diacr[i].result); | |
1658 | } | |
1659 | spin_unlock_irqrestore(&kbd_event_lock, flags); | |
1660 | kfree(diacr); | |
1661 | return 0; | |
1662 | } | |
1663 | ||
1664 | case KDSKBDIACRUC: | |
1665 | { | |
1666 | struct kbdiacrsuc __user *a = up; | |
1667 | unsigned int ct; | |
1668 | void *buf = NULL; | |
1669 | ||
1670 | if (!perm) | |
1671 | return -EPERM; | |
1672 | ||
1673 | if (get_user(ct, &a->kb_cnt)) | |
1674 | return -EFAULT; | |
1675 | ||
1676 | if (ct >= MAX_DIACR) | |
1677 | return -EINVAL; | |
1678 | ||
1679 | if (ct) { | |
1680 | buf = kmalloc(ct * sizeof(struct kbdiacruc), | |
1681 | GFP_KERNEL); | |
1682 | if (buf == NULL) | |
1683 | return -ENOMEM; | |
1684 | ||
1685 | if (copy_from_user(buf, a->kbdiacruc, | |
1686 | ct * sizeof(struct kbdiacruc))) { | |
1687 | kfree(buf); | |
1688 | return -EFAULT; | |
1689 | } | |
1690 | } | |
1691 | spin_lock_irqsave(&kbd_event_lock, flags); | |
1692 | if (ct) | |
1693 | memcpy(accent_table, buf, | |
1694 | ct * sizeof(struct kbdiacruc)); | |
1695 | accent_table_size = ct; | |
1696 | spin_unlock_irqrestore(&kbd_event_lock, flags); | |
1697 | kfree(buf); | |
1698 | return 0; | |
1699 | } | |
1700 | } | |
1701 | return ret; | |
1702 | } | |
079c9534 AC |
1703 | |
1704 | /** | |
1705 | * vt_do_kdskbmode - set keyboard mode ioctl | |
1706 | * @console: the console to use | |
1707 | * @arg: the requested mode | |
1708 | * | |
1709 | * Update the keyboard mode bits while holding the correct locks. | |
1710 | * Return 0 for success or an error code. | |
1711 | */ | |
1712 | int vt_do_kdskbmode(int console, unsigned int arg) | |
1713 | { | |
1714 | struct kbd_struct * kbd = kbd_table + console; | |
1715 | int ret = 0; | |
1716 | unsigned long flags; | |
1717 | ||
1718 | spin_lock_irqsave(&kbd_event_lock, flags); | |
1719 | switch(arg) { | |
1720 | case K_RAW: | |
1721 | kbd->kbdmode = VC_RAW; | |
1722 | break; | |
1723 | case K_MEDIUMRAW: | |
1724 | kbd->kbdmode = VC_MEDIUMRAW; | |
1725 | break; | |
1726 | case K_XLATE: | |
1727 | kbd->kbdmode = VC_XLATE; | |
1728 | do_compute_shiftstate(); | |
1729 | break; | |
1730 | case K_UNICODE: | |
1731 | kbd->kbdmode = VC_UNICODE; | |
1732 | do_compute_shiftstate(); | |
1733 | break; | |
1734 | case K_OFF: | |
1735 | kbd->kbdmode = VC_OFF; | |
1736 | break; | |
1737 | default: | |
1738 | ret = -EINVAL; | |
1739 | } | |
1740 | spin_unlock_irqrestore(&kbd_event_lock, flags); | |
1741 | return ret; | |
1742 | } | |
1743 | ||
1744 | /** | |
1745 | * vt_do_kdskbmeta - set keyboard meta state | |
1746 | * @console: the console to use | |
1747 | * @arg: the requested meta state | |
1748 | * | |
1749 | * Update the keyboard meta bits while holding the correct locks. | |
1750 | * Return 0 for success or an error code. | |
1751 | */ | |
1752 | int vt_do_kdskbmeta(int console, unsigned int arg) | |
1753 | { | |
1754 | struct kbd_struct * kbd = kbd_table + console; | |
1755 | int ret = 0; | |
1756 | unsigned long flags; | |
1757 | ||
1758 | spin_lock_irqsave(&kbd_event_lock, flags); | |
1759 | switch(arg) { | |
1760 | case K_METABIT: | |
1761 | clr_vc_kbd_mode(kbd, VC_META); | |
1762 | break; | |
1763 | case K_ESCPREFIX: | |
1764 | set_vc_kbd_mode(kbd, VC_META); | |
1765 | break; | |
1766 | default: | |
1767 | ret = -EINVAL; | |
1768 | } | |
1769 | spin_unlock_irqrestore(&kbd_event_lock, flags); | |
1770 | return ret; | |
1771 | } | |
1772 | ||
1773 | int vt_do_kbkeycode_ioctl(int cmd, struct kbkeycode __user *user_kbkc, | |
1774 | int perm) | |
1775 | { | |
1776 | struct kbkeycode tmp; | |
1777 | int kc = 0; | |
1778 | ||
1779 | if (copy_from_user(&tmp, user_kbkc, sizeof(struct kbkeycode))) | |
1780 | return -EFAULT; | |
1781 | switch (cmd) { | |
1782 | case KDGETKEYCODE: | |
1783 | kc = getkeycode(tmp.scancode); | |
1784 | if (kc >= 0) | |
1785 | kc = put_user(kc, &user_kbkc->keycode); | |
1786 | break; | |
1787 | case KDSETKEYCODE: | |
1788 | if (!perm) | |
1789 | return -EPERM; | |
1790 | kc = setkeycode(tmp.scancode, tmp.keycode); | |
1791 | break; | |
1792 | } | |
1793 | return kc; | |
1794 | } | |
1795 | ||
1796 | #define i (tmp.kb_index) | |
1797 | #define s (tmp.kb_table) | |
1798 | #define v (tmp.kb_value) | |
1799 | ||
1800 | int vt_do_kdsk_ioctl(int cmd, struct kbentry __user *user_kbe, int perm, | |
1801 | int console) | |
1802 | { | |
1803 | struct kbd_struct * kbd = kbd_table + console; | |
1804 | struct kbentry tmp; | |
1805 | ushort *key_map, *new_map, val, ov; | |
1806 | unsigned long flags; | |
1807 | ||
1808 | if (copy_from_user(&tmp, user_kbe, sizeof(struct kbentry))) | |
1809 | return -EFAULT; | |
1810 | ||
1811 | if (!capable(CAP_SYS_TTY_CONFIG)) | |
1812 | perm = 0; | |
1813 | ||
1814 | switch (cmd) { | |
1815 | case KDGKBENT: | |
1816 | /* Ensure another thread doesn't free it under us */ | |
1817 | spin_lock_irqsave(&kbd_event_lock, flags); | |
1818 | key_map = key_maps[s]; | |
1819 | if (key_map) { | |
1820 | val = U(key_map[i]); | |
1821 | if (kbd->kbdmode != VC_UNICODE && KTYP(val) >= NR_TYPES) | |
1822 | val = K_HOLE; | |
1823 | } else | |
1824 | val = (i ? K_HOLE : K_NOSUCHMAP); | |
1825 | spin_unlock_irqrestore(&kbd_event_lock, flags); | |
1826 | return put_user(val, &user_kbe->kb_value); | |
1827 | case KDSKBENT: | |
1828 | if (!perm) | |
1829 | return -EPERM; | |
1830 | if (!i && v == K_NOSUCHMAP) { | |
1831 | spin_lock_irqsave(&kbd_event_lock, flags); | |
1832 | /* deallocate map */ | |
1833 | key_map = key_maps[s]; | |
1834 | if (s && key_map) { | |
1835 | key_maps[s] = NULL; | |
1836 | if (key_map[0] == U(K_ALLOCATED)) { | |
1837 | kfree(key_map); | |
1838 | keymap_count--; | |
1839 | } | |
1840 | } | |
1841 | spin_unlock_irqrestore(&kbd_event_lock, flags); | |
1842 | break; | |
1843 | } | |
1844 | ||
1845 | if (KTYP(v) < NR_TYPES) { | |
1846 | if (KVAL(v) > max_vals[KTYP(v)]) | |
1847 | return -EINVAL; | |
1848 | } else | |
1849 | if (kbd->kbdmode != VC_UNICODE) | |
1850 | return -EINVAL; | |
1851 | ||
1852 | /* ++Geert: non-PC keyboards may generate keycode zero */ | |
1853 | #if !defined(__mc68000__) && !defined(__powerpc__) | |
1854 | /* assignment to entry 0 only tests validity of args */ | |
1855 | if (!i) | |
1856 | break; | |
1857 | #endif | |
1858 | ||
1859 | new_map = kmalloc(sizeof(plain_map), GFP_KERNEL); | |
1860 | if (!new_map) | |
1861 | return -ENOMEM; | |
1862 | spin_lock_irqsave(&kbd_event_lock, flags); | |
1863 | key_map = key_maps[s]; | |
1864 | if (key_map == NULL) { | |
1865 | int j; | |
1866 | ||
1867 | if (keymap_count >= MAX_NR_OF_USER_KEYMAPS && | |
1868 | !capable(CAP_SYS_RESOURCE)) { | |
1869 | spin_unlock_irqrestore(&kbd_event_lock, flags); | |
1870 | kfree(new_map); | |
1871 | return -EPERM; | |
1872 | } | |
1873 | key_maps[s] = new_map; | |
82896210 | 1874 | key_map = new_map; |
079c9534 AC |
1875 | key_map[0] = U(K_ALLOCATED); |
1876 | for (j = 1; j < NR_KEYS; j++) | |
1877 | key_map[j] = U(K_HOLE); | |
1878 | keymap_count++; | |
1879 | } else | |
1880 | kfree(new_map); | |
1881 | ||
1882 | ov = U(key_map[i]); | |
1883 | if (v == ov) | |
1884 | goto out; | |
1885 | /* | |
1886 | * Attention Key. | |
1887 | */ | |
1888 | if (((ov == K_SAK) || (v == K_SAK)) && !capable(CAP_SYS_ADMIN)) { | |
1889 | spin_unlock_irqrestore(&kbd_event_lock, flags); | |
1890 | return -EPERM; | |
1891 | } | |
1892 | key_map[i] = U(v); | |
1893 | if (!s && (KTYP(ov) == KT_SHIFT || KTYP(v) == KT_SHIFT)) | |
1894 | do_compute_shiftstate(); | |
1895 | out: | |
1896 | spin_unlock_irqrestore(&kbd_event_lock, flags); | |
1897 | break; | |
1898 | } | |
1899 | return 0; | |
1900 | } | |
1901 | #undef i | |
1902 | #undef s | |
1903 | #undef v | |
1904 | ||
1905 | /* FIXME: This one needs untangling and locking */ | |
1906 | int vt_do_kdgkb_ioctl(int cmd, struct kbsentry __user *user_kdgkb, int perm) | |
1907 | { | |
1908 | struct kbsentry *kbs; | |
1909 | char *p; | |
1910 | u_char *q; | |
1911 | u_char __user *up; | |
1912 | int sz; | |
1913 | int delta; | |
1914 | char *first_free, *fj, *fnw; | |
1915 | int i, j, k; | |
1916 | int ret; | |
1917 | ||
1918 | if (!capable(CAP_SYS_TTY_CONFIG)) | |
1919 | perm = 0; | |
1920 | ||
1921 | kbs = kmalloc(sizeof(*kbs), GFP_KERNEL); | |
1922 | if (!kbs) { | |
1923 | ret = -ENOMEM; | |
1924 | goto reterr; | |
1925 | } | |
1926 | ||
1927 | /* we mostly copy too much here (512bytes), but who cares ;) */ | |
1928 | if (copy_from_user(kbs, user_kdgkb, sizeof(struct kbsentry))) { | |
1929 | ret = -EFAULT; | |
1930 | goto reterr; | |
1931 | } | |
1932 | kbs->kb_string[sizeof(kbs->kb_string)-1] = '\0'; | |
1933 | i = kbs->kb_func; | |
1934 | ||
1935 | switch (cmd) { | |
1936 | case KDGKBSENT: | |
1937 | sz = sizeof(kbs->kb_string) - 1; /* sz should have been | |
1938 | a struct member */ | |
1939 | up = user_kdgkb->kb_string; | |
1940 | p = func_table[i]; | |
1941 | if(p) | |
1942 | for ( ; *p && sz; p++, sz--) | |
1943 | if (put_user(*p, up++)) { | |
1944 | ret = -EFAULT; | |
1945 | goto reterr; | |
1946 | } | |
1947 | if (put_user('\0', up)) { | |
1948 | ret = -EFAULT; | |
1949 | goto reterr; | |
1950 | } | |
1951 | kfree(kbs); | |
1952 | return ((p && *p) ? -EOVERFLOW : 0); | |
1953 | case KDSKBSENT: | |
1954 | if (!perm) { | |
1955 | ret = -EPERM; | |
1956 | goto reterr; | |
1957 | } | |
1958 | ||
1959 | q = func_table[i]; | |
1960 | first_free = funcbufptr + (funcbufsize - funcbufleft); | |
1961 | for (j = i+1; j < MAX_NR_FUNC && !func_table[j]; j++) | |
1962 | ; | |
1963 | if (j < MAX_NR_FUNC) | |
1964 | fj = func_table[j]; | |
1965 | else | |
1966 | fj = first_free; | |
1967 | ||
1968 | delta = (q ? -strlen(q) : 1) + strlen(kbs->kb_string); | |
1969 | if (delta <= funcbufleft) { /* it fits in current buf */ | |
1970 | if (j < MAX_NR_FUNC) { | |
1971 | memmove(fj + delta, fj, first_free - fj); | |
1972 | for (k = j; k < MAX_NR_FUNC; k++) | |
1973 | if (func_table[k]) | |
1974 | func_table[k] += delta; | |
1975 | } | |
1976 | if (!q) | |
1977 | func_table[i] = fj; | |
1978 | funcbufleft -= delta; | |
1979 | } else { /* allocate a larger buffer */ | |
1980 | sz = 256; | |
1981 | while (sz < funcbufsize - funcbufleft + delta) | |
1982 | sz <<= 1; | |
1983 | fnw = kmalloc(sz, GFP_KERNEL); | |
1984 | if(!fnw) { | |
1985 | ret = -ENOMEM; | |
1986 | goto reterr; | |
1987 | } | |
1988 | ||
1989 | if (!q) | |
1990 | func_table[i] = fj; | |
1991 | if (fj > funcbufptr) | |
1992 | memmove(fnw, funcbufptr, fj - funcbufptr); | |
1993 | for (k = 0; k < j; k++) | |
1994 | if (func_table[k]) | |
1995 | func_table[k] = fnw + (func_table[k] - funcbufptr); | |
1996 | ||
1997 | if (first_free > fj) { | |
1998 | memmove(fnw + (fj - funcbufptr) + delta, fj, first_free - fj); | |
1999 | for (k = j; k < MAX_NR_FUNC; k++) | |
2000 | if (func_table[k]) | |
2001 | func_table[k] = fnw + (func_table[k] - funcbufptr) + delta; | |
2002 | } | |
2003 | if (funcbufptr != func_buf) | |
2004 | kfree(funcbufptr); | |
2005 | funcbufptr = fnw; | |
2006 | funcbufleft = funcbufleft - delta + sz - funcbufsize; | |
2007 | funcbufsize = sz; | |
2008 | } | |
2009 | strcpy(func_table[i], kbs->kb_string); | |
2010 | break; | |
2011 | } | |
2012 | ret = 0; | |
2013 | reterr: | |
2014 | kfree(kbs); | |
2015 | return ret; | |
2016 | } | |
2017 | ||
2018 | int vt_do_kdskled(int console, int cmd, unsigned long arg, int perm) | |
2019 | { | |
2020 | struct kbd_struct * kbd = kbd_table + console; | |
2021 | unsigned long flags; | |
2022 | unsigned char ucval; | |
2023 | ||
2024 | switch(cmd) { | |
2025 | /* the ioctls below read/set the flags usually shown in the leds */ | |
2026 | /* don't use them - they will go away without warning */ | |
2027 | case KDGKBLED: | |
2028 | spin_lock_irqsave(&kbd_event_lock, flags); | |
2029 | ucval = kbd->ledflagstate | (kbd->default_ledflagstate << 4); | |
2030 | spin_unlock_irqrestore(&kbd_event_lock, flags); | |
2031 | return put_user(ucval, (char __user *)arg); | |
2032 | ||
2033 | case KDSKBLED: | |
2034 | if (!perm) | |
2035 | return -EPERM; | |
2036 | if (arg & ~0x77) | |
2037 | return -EINVAL; | |
3db1ddb7 | 2038 | spin_lock_irqsave(&led_lock, flags); |
079c9534 AC |
2039 | kbd->ledflagstate = (arg & 7); |
2040 | kbd->default_ledflagstate = ((arg >> 4) & 7); | |
2041 | set_leds(); | |
3db1ddb7 | 2042 | spin_unlock_irqrestore(&led_lock, flags); |
eea41aee | 2043 | return 0; |
079c9534 AC |
2044 | |
2045 | /* the ioctls below only set the lights, not the functions */ | |
2046 | /* for those, see KDGKBLED and KDSKBLED above */ | |
2047 | case KDGETLED: | |
2048 | ucval = getledstate(); | |
2049 | return put_user(ucval, (char __user *)arg); | |
2050 | ||
2051 | case KDSETLED: | |
2052 | if (!perm) | |
2053 | return -EPERM; | |
2054 | setledstate(kbd, arg); | |
2055 | return 0; | |
2056 | } | |
2057 | return -ENOIOCTLCMD; | |
2058 | } | |
2059 | ||
2060 | int vt_do_kdgkbmode(int console) | |
2061 | { | |
2062 | struct kbd_struct * kbd = kbd_table + console; | |
2063 | /* This is a spot read so needs no locking */ | |
2064 | switch (kbd->kbdmode) { | |
2065 | case VC_RAW: | |
2066 | return K_RAW; | |
2067 | case VC_MEDIUMRAW: | |
2068 | return K_MEDIUMRAW; | |
2069 | case VC_UNICODE: | |
2070 | return K_UNICODE; | |
2071 | case VC_OFF: | |
2072 | return K_OFF; | |
2073 | default: | |
2074 | return K_XLATE; | |
2075 | } | |
2076 | } | |
2077 | ||
2078 | /** | |
2079 | * vt_do_kdgkbmeta - report meta status | |
2080 | * @console: console to report | |
2081 | * | |
2082 | * Report the meta flag status of this console | |
2083 | */ | |
2084 | int vt_do_kdgkbmeta(int console) | |
2085 | { | |
2086 | struct kbd_struct * kbd = kbd_table + console; | |
2087 | /* Again a spot read so no locking */ | |
2088 | return vc_kbd_mode(kbd, VC_META) ? K_ESCPREFIX : K_METABIT; | |
2089 | } | |
2090 | ||
2091 | /** | |
2092 | * vt_reset_unicode - reset the unicode status | |
2093 | * @console: console being reset | |
2094 | * | |
2095 | * Restore the unicode console state to its default | |
2096 | */ | |
2097 | void vt_reset_unicode(int console) | |
2098 | { | |
2099 | unsigned long flags; | |
2100 | ||
2101 | spin_lock_irqsave(&kbd_event_lock, flags); | |
2102 | kbd_table[console].kbdmode = default_utf8 ? VC_UNICODE : VC_XLATE; | |
2103 | spin_unlock_irqrestore(&kbd_event_lock, flags); | |
2104 | } | |
2105 | ||
2106 | /** | |
2107 | * vt_get_shiftstate - shift bit state | |
2108 | * | |
2109 | * Report the shift bits from the keyboard state. We have to export | |
2110 | * this to support some oddities in the vt layer. | |
2111 | */ | |
2112 | int vt_get_shift_state(void) | |
2113 | { | |
2114 | /* Don't lock as this is a transient report */ | |
2115 | return shift_state; | |
2116 | } | |
2117 | ||
2118 | /** | |
2119 | * vt_reset_keyboard - reset keyboard state | |
2120 | * @console: console to reset | |
2121 | * | |
2122 | * Reset the keyboard bits for a console as part of a general console | |
2123 | * reset event | |
2124 | */ | |
2125 | void vt_reset_keyboard(int console) | |
2126 | { | |
2127 | struct kbd_struct * kbd = kbd_table + console; | |
2128 | unsigned long flags; | |
2129 | ||
2130 | spin_lock_irqsave(&kbd_event_lock, flags); | |
2131 | set_vc_kbd_mode(kbd, VC_REPEAT); | |
2132 | clr_vc_kbd_mode(kbd, VC_CKMODE); | |
2133 | clr_vc_kbd_mode(kbd, VC_APPLIC); | |
2134 | clr_vc_kbd_mode(kbd, VC_CRLF); | |
2135 | kbd->lockstate = 0; | |
2136 | kbd->slockstate = 0; | |
3db1ddb7 | 2137 | spin_lock(&led_lock); |
079c9534 AC |
2138 | kbd->ledmode = LED_SHOW_FLAGS; |
2139 | kbd->ledflagstate = kbd->default_ledflagstate; | |
3db1ddb7 | 2140 | spin_unlock(&led_lock); |
079c9534 AC |
2141 | /* do not do set_leds here because this causes an endless tasklet loop |
2142 | when the keyboard hasn't been initialized yet */ | |
2143 | spin_unlock_irqrestore(&kbd_event_lock, flags); | |
2144 | } | |
2145 | ||
2146 | /** | |
2147 | * vt_get_kbd_mode_bit - read keyboard status bits | |
2148 | * @console: console to read from | |
2149 | * @bit: mode bit to read | |
2150 | * | |
2151 | * Report back a vt mode bit. We do this without locking so the | |
2152 | * caller must be sure that there are no synchronization needs | |
2153 | */ | |
2154 | ||
2155 | int vt_get_kbd_mode_bit(int console, int bit) | |
2156 | { | |
2157 | struct kbd_struct * kbd = kbd_table + console; | |
2158 | return vc_kbd_mode(kbd, bit); | |
2159 | } | |
2160 | ||
2161 | /** | |
2162 | * vt_set_kbd_mode_bit - read keyboard status bits | |
2163 | * @console: console to read from | |
2164 | * @bit: mode bit to read | |
2165 | * | |
2166 | * Set a vt mode bit. We do this without locking so the | |
2167 | * caller must be sure that there are no synchronization needs | |
2168 | */ | |
2169 | ||
2170 | void vt_set_kbd_mode_bit(int console, int bit) | |
2171 | { | |
2172 | struct kbd_struct * kbd = kbd_table + console; | |
2173 | unsigned long flags; | |
2174 | ||
2175 | spin_lock_irqsave(&kbd_event_lock, flags); | |
2176 | set_vc_kbd_mode(kbd, bit); | |
2177 | spin_unlock_irqrestore(&kbd_event_lock, flags); | |
2178 | } | |
2179 | ||
2180 | /** | |
2181 | * vt_clr_kbd_mode_bit - read keyboard status bits | |
2182 | * @console: console to read from | |
2183 | * @bit: mode bit to read | |
2184 | * | |
2185 | * Report back a vt mode bit. We do this without locking so the | |
2186 | * caller must be sure that there are no synchronization needs | |
2187 | */ | |
2188 | ||
2189 | void vt_clr_kbd_mode_bit(int console, int bit) | |
2190 | { | |
2191 | struct kbd_struct * kbd = kbd_table + console; | |
2192 | unsigned long flags; | |
2193 | ||
2194 | spin_lock_irqsave(&kbd_event_lock, flags); | |
2195 | clr_vc_kbd_mode(kbd, bit); | |
2196 | spin_unlock_irqrestore(&kbd_event_lock, flags); | |
2197 | } |