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