Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * linux/drivers/char/keyboard.c | |
3 | * | |
4 | * Written for linux by Johan Myreen as a translation from | |
5 | * the assembly version by Linus (with diacriticals added) | |
6 | * | |
7 | * Some additional features added by Christoph Niemann (ChN), March 1993 | |
8 | * | |
9 | * Loadable keymaps by Risto Kankkunen, May 1993 | |
10 | * | |
11 | * Diacriticals redone & other small changes, aeb@cwi.nl, June 1993 | |
12 | * Added decr/incr_console, dynamic keymaps, Unicode support, | |
13 | * dynamic function/string keys, led setting, Sept 1994 | |
14 | * `Sticky' modifier keys, 951006. | |
15 | * | |
16 | * 11-11-96: SAK should now work in the raw mode (Martin Mares) | |
fe1e8604 | 17 | * |
1da177e4 LT |
18 | * Modified to provide 'generic' keyboard support by Hamish Macdonald |
19 | * Merge with the m68k keyboard driver and split-off of the PC low-level | |
20 | * parts by Geert Uytterhoeven, May 1997 | |
21 | * | |
22 | * 27-05-97: Added support for the Magic SysRq Key (Martin Mares) | |
23 | * 30-07-98: Dead keys redone, aeb@cwi.nl. | |
24 | * 21-08-02: Converted to input API, major cleanup. (Vojtech Pavlik) | |
25 | */ | |
26 | ||
1da177e4 LT |
27 | #include <linux/module.h> |
28 | #include <linux/sched.h> | |
29 | #include <linux/tty.h> | |
30 | #include <linux/tty_flip.h> | |
31 | #include <linux/mm.h> | |
32 | #include <linux/string.h> | |
33 | #include <linux/init.h> | |
34 | #include <linux/slab.h> | |
35 | ||
36 | #include <linux/kbd_kern.h> | |
37 | #include <linux/kbd_diacr.h> | |
38 | #include <linux/vt_kern.h> | |
39 | #include <linux/sysrq.h> | |
40 | #include <linux/input.h> | |
83cc5ed3 | 41 | #include <linux/reboot.h> |
1da177e4 LT |
42 | |
43 | static void kbd_disconnect(struct input_handle *handle); | |
44 | extern void ctrl_alt_del(void); | |
45 | ||
46 | /* | |
47 | * Exported functions/variables | |
48 | */ | |
49 | ||
50 | #define KBD_DEFMODE ((1 << VC_REPEAT) | (1 << VC_META)) | |
51 | ||
52 | /* | |
53 | * Some laptops take the 789uiojklm,. keys as number pad when NumLock is on. | |
54 | * This seems a good reason to start with NumLock off. On HIL keyboards | |
fe1e8604 | 55 | * of PARISC machines however there is no NumLock key and everyone expects the keypad |
1da177e4 LT |
56 | * to be used for numbers. |
57 | */ | |
58 | ||
59 | #if defined(CONFIG_PARISC) && (defined(CONFIG_KEYBOARD_HIL) || defined(CONFIG_KEYBOARD_HIL_OLD)) | |
60 | #define KBD_DEFLEDS (1 << VC_NUMLOCK) | |
61 | #else | |
62 | #define KBD_DEFLEDS 0 | |
63 | #endif | |
64 | ||
65 | #define KBD_DEFLOCK 0 | |
66 | ||
67 | void compute_shiftstate(void); | |
68 | ||
69 | /* | |
70 | * Handler Tables. | |
71 | */ | |
72 | ||
73 | #define K_HANDLERS\ | |
74 | k_self, k_fn, k_spec, k_pad,\ | |
75 | k_dead, k_cons, k_cur, k_shift,\ | |
76 | k_meta, k_ascii, k_lock, k_lowercase,\ | |
b9ec4e10 | 77 | k_slock, k_dead2, k_brl, k_ignore |
1da177e4 | 78 | |
fe1e8604 | 79 | typedef void (k_handler_fn)(struct vc_data *vc, unsigned char value, |
1da177e4 LT |
80 | char up_flag, struct pt_regs *regs); |
81 | static k_handler_fn K_HANDLERS; | |
82 | static k_handler_fn *k_handler[16] = { K_HANDLERS }; | |
83 | ||
84 | #define FN_HANDLERS\ | |
fe1e8604 DT |
85 | fn_null, fn_enter, fn_show_ptregs, fn_show_mem,\ |
86 | fn_show_state, fn_send_intr, fn_lastcons, fn_caps_toggle,\ | |
87 | fn_num, fn_hold, fn_scroll_forw, fn_scroll_back,\ | |
88 | fn_boot_it, fn_caps_on, fn_compose, fn_SAK,\ | |
89 | fn_dec_console, fn_inc_console, fn_spawn_con, fn_bare_num | |
1da177e4 LT |
90 | |
91 | typedef void (fn_handler_fn)(struct vc_data *vc, struct pt_regs *regs); | |
92 | static fn_handler_fn FN_HANDLERS; | |
93 | static fn_handler_fn *fn_handler[] = { FN_HANDLERS }; | |
94 | ||
95 | /* | |
96 | * Variables exported for vt_ioctl.c | |
97 | */ | |
98 | ||
99 | /* maximum values each key_handler can handle */ | |
100 | const int max_vals[] = { | |
101 | 255, ARRAY_SIZE(func_table) - 1, ARRAY_SIZE(fn_handler) - 1, NR_PAD - 1, | |
102 | NR_DEAD - 1, 255, 3, NR_SHIFT - 1, 255, NR_ASCII - 1, NR_LOCK - 1, | |
b9ec4e10 | 103 | 255, NR_LOCK - 1, 255, NR_BRL - 1 |
1da177e4 LT |
104 | }; |
105 | ||
106 | const int NR_TYPES = ARRAY_SIZE(max_vals); | |
107 | ||
108 | struct kbd_struct kbd_table[MAX_NR_CONSOLES]; | |
109 | static struct kbd_struct *kbd = kbd_table; | |
110 | static struct kbd_struct kbd0; | |
111 | ||
112 | int spawnpid, spawnsig; | |
113 | ||
114 | /* | |
115 | * Variables exported for vt.c | |
116 | */ | |
117 | ||
118 | int shift_state = 0; | |
119 | ||
120 | /* | |
121 | * Internal Data. | |
122 | */ | |
123 | ||
124 | static struct input_handler kbd_handler; | |
125 | static unsigned long key_down[NBITS(KEY_MAX)]; /* keyboard key bitmap */ | |
126 | static unsigned char shift_down[NR_SHIFT]; /* shift state counters.. */ | |
127 | static int dead_key_next; | |
128 | static int npadch = -1; /* -1 or number assembled on pad */ | |
b9ec4e10 | 129 | static unsigned int diacr; |
1da177e4 LT |
130 | static char rep; /* flag telling character repeat */ |
131 | ||
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 | ||
141 | /* Simple translation table for the SysRq keys */ | |
142 | ||
143 | #ifdef CONFIG_MAGIC_SYSRQ | |
144 | unsigned char kbd_sysrq_xlate[KEY_MAX + 1] = | |
145 | "\000\0331234567890-=\177\t" /* 0x00 - 0x0f */ | |
146 | "qwertyuiop[]\r\000as" /* 0x10 - 0x1f */ | |
147 | "dfghjkl;'`\000\\zxcv" /* 0x20 - 0x2f */ | |
148 | "bnm,./\000*\000 \000\201\202\203\204\205" /* 0x30 - 0x3f */ | |
149 | "\206\207\210\211\212\000\000789-456+1" /* 0x40 - 0x4f */ | |
150 | "230\177\000\000\213\214\000\000\000\000\000\000\000\000\000\000" /* 0x50 - 0x5f */ | |
151 | "\r\000/"; /* 0x60 - 0x6f */ | |
152 | static int sysrq_down; | |
d2be8ee5 | 153 | static int sysrq_alt_use; |
1da177e4 LT |
154 | #endif |
155 | static int sysrq_alt; | |
156 | ||
157 | /* | |
158 | * Translation of scancodes to keycodes. We set them on only the first attached | |
159 | * keyboard - for per-keyboard setting, /dev/input/event is more useful. | |
160 | */ | |
161 | int getkeycode(unsigned int scancode) | |
162 | { | |
fe1e8604 | 163 | struct list_head *node; |
1da177e4 LT |
164 | struct input_dev *dev = NULL; |
165 | ||
fe1e8604 DT |
166 | list_for_each(node, &kbd_handler.h_list) { |
167 | struct input_handle *handle = to_handle_h(node); | |
168 | if (handle->dev->keycodesize) { | |
169 | dev = handle->dev; | |
1da177e4 LT |
170 | break; |
171 | } | |
172 | } | |
173 | ||
174 | if (!dev) | |
175 | return -ENODEV; | |
176 | ||
177 | if (scancode >= dev->keycodemax) | |
178 | return -EINVAL; | |
179 | ||
180 | return INPUT_KEYCODE(dev, scancode); | |
181 | } | |
182 | ||
183 | int setkeycode(unsigned int scancode, unsigned int keycode) | |
184 | { | |
fe1e8604 | 185 | struct list_head *node; |
1da177e4 LT |
186 | struct input_dev *dev = NULL; |
187 | unsigned int i, oldkey; | |
188 | ||
fe1e8604 | 189 | list_for_each(node, &kbd_handler.h_list) { |
1da177e4 | 190 | struct input_handle *handle = to_handle_h(node); |
fe1e8604 DT |
191 | if (handle->dev->keycodesize) { |
192 | dev = handle->dev; | |
193 | break; | |
1da177e4 LT |
194 | } |
195 | } | |
196 | ||
197 | if (!dev) | |
198 | return -ENODEV; | |
199 | ||
200 | if (scancode >= dev->keycodemax) | |
201 | return -EINVAL; | |
1da177e4 LT |
202 | if (keycode < 0 || keycode > KEY_MAX) |
203 | return -EINVAL; | |
4cee9956 | 204 | if (dev->keycodesize < sizeof(keycode) && (keycode >> (dev->keycodesize * 8))) |
5ac7ba3f | 205 | return -EINVAL; |
1da177e4 LT |
206 | |
207 | oldkey = SET_INPUT_KEYCODE(dev, scancode, keycode); | |
208 | ||
209 | clear_bit(oldkey, dev->keybit); | |
210 | set_bit(keycode, dev->keybit); | |
211 | ||
212 | for (i = 0; i < dev->keycodemax; i++) | |
213 | if (INPUT_KEYCODE(dev,i) == oldkey) | |
214 | set_bit(oldkey, dev->keybit); | |
215 | ||
216 | return 0; | |
217 | } | |
218 | ||
219 | /* | |
fe1e8604 | 220 | * Making beeps and bells. |
1da177e4 LT |
221 | */ |
222 | static void kd_nosound(unsigned long ignored) | |
223 | { | |
fe1e8604 | 224 | struct list_head *node; |
1da177e4 LT |
225 | |
226 | list_for_each(node,&kbd_handler.h_list) { | |
227 | struct input_handle *handle = to_handle_h(node); | |
228 | if (test_bit(EV_SND, handle->dev->evbit)) { | |
229 | if (test_bit(SND_TONE, handle->dev->sndbit)) | |
230 | input_event(handle->dev, EV_SND, SND_TONE, 0); | |
231 | if (test_bit(SND_BELL, handle->dev->sndbit)) | |
232 | input_event(handle->dev, EV_SND, SND_BELL, 0); | |
233 | } | |
234 | } | |
235 | } | |
236 | ||
8d06afab | 237 | static DEFINE_TIMER(kd_mksound_timer, kd_nosound, 0, 0); |
1da177e4 LT |
238 | |
239 | void kd_mksound(unsigned int hz, unsigned int ticks) | |
240 | { | |
fe1e8604 | 241 | struct list_head *node; |
1da177e4 LT |
242 | |
243 | del_timer(&kd_mksound_timer); | |
244 | ||
245 | if (hz) { | |
fe1e8604 | 246 | list_for_each_prev(node, &kbd_handler.h_list) { |
1da177e4 LT |
247 | struct input_handle *handle = to_handle_h(node); |
248 | if (test_bit(EV_SND, handle->dev->evbit)) { | |
249 | if (test_bit(SND_TONE, handle->dev->sndbit)) { | |
250 | input_event(handle->dev, EV_SND, SND_TONE, hz); | |
251 | break; | |
252 | } | |
253 | if (test_bit(SND_BELL, handle->dev->sndbit)) { | |
254 | input_event(handle->dev, EV_SND, SND_BELL, 1); | |
255 | break; | |
256 | } | |
257 | } | |
258 | } | |
259 | if (ticks) | |
260 | mod_timer(&kd_mksound_timer, jiffies + ticks); | |
261 | } else | |
262 | kd_nosound(0); | |
263 | } | |
264 | ||
265 | /* | |
266 | * Setting the keyboard rate. | |
267 | */ | |
268 | ||
269 | int kbd_rate(struct kbd_repeat *rep) | |
270 | { | |
271 | struct list_head *node; | |
272 | unsigned int d = 0; | |
273 | unsigned int p = 0; | |
274 | ||
275 | list_for_each(node,&kbd_handler.h_list) { | |
276 | struct input_handle *handle = to_handle_h(node); | |
277 | struct input_dev *dev = handle->dev; | |
278 | ||
279 | if (test_bit(EV_REP, dev->evbit)) { | |
280 | if (rep->delay > 0) | |
281 | input_event(dev, EV_REP, REP_DELAY, rep->delay); | |
282 | if (rep->period > 0) | |
283 | input_event(dev, EV_REP, REP_PERIOD, rep->period); | |
284 | d = dev->rep[REP_DELAY]; | |
285 | p = dev->rep[REP_PERIOD]; | |
286 | } | |
287 | } | |
288 | rep->delay = d; | |
289 | rep->period = p; | |
290 | return 0; | |
291 | } | |
292 | ||
293 | /* | |
294 | * Helper Functions. | |
295 | */ | |
296 | static void put_queue(struct vc_data *vc, int ch) | |
297 | { | |
298 | struct tty_struct *tty = vc->vc_tty; | |
299 | ||
300 | if (tty) { | |
301 | tty_insert_flip_char(tty, ch, 0); | |
302 | con_schedule_flip(tty); | |
303 | } | |
304 | } | |
305 | ||
306 | static void puts_queue(struct vc_data *vc, char *cp) | |
307 | { | |
308 | struct tty_struct *tty = vc->vc_tty; | |
309 | ||
310 | if (!tty) | |
311 | return; | |
312 | ||
313 | while (*cp) { | |
314 | tty_insert_flip_char(tty, *cp, 0); | |
315 | cp++; | |
316 | } | |
317 | con_schedule_flip(tty); | |
318 | } | |
319 | ||
320 | static void applkey(struct vc_data *vc, int key, char mode) | |
321 | { | |
322 | static char buf[] = { 0x1b, 'O', 0x00, 0x00 }; | |
323 | ||
324 | buf[1] = (mode ? 'O' : '['); | |
325 | buf[2] = key; | |
326 | puts_queue(vc, buf); | |
327 | } | |
328 | ||
329 | /* | |
330 | * Many other routines do put_queue, but I think either | |
331 | * they produce ASCII, or they produce some user-assigned | |
332 | * string, and in both cases we might assume that it is | |
333 | * in utf-8 already. UTF-8 is defined for words of up to 31 bits, | |
334 | * but we need only 16 bits here | |
335 | */ | |
336 | static void to_utf8(struct vc_data *vc, ushort c) | |
337 | { | |
338 | if (c < 0x80) | |
339 | /* 0******* */ | |
340 | put_queue(vc, c); | |
fe1e8604 | 341 | else if (c < 0x800) { |
1da177e4 | 342 | /* 110***** 10****** */ |
fe1e8604 | 343 | put_queue(vc, 0xc0 | (c >> 6)); |
1da177e4 | 344 | put_queue(vc, 0x80 | (c & 0x3f)); |
fe1e8604 | 345 | } else { |
1da177e4 LT |
346 | /* 1110**** 10****** 10****** */ |
347 | put_queue(vc, 0xe0 | (c >> 12)); | |
348 | put_queue(vc, 0x80 | ((c >> 6) & 0x3f)); | |
349 | put_queue(vc, 0x80 | (c & 0x3f)); | |
fe1e8604 | 350 | } |
1da177e4 LT |
351 | } |
352 | ||
fe1e8604 | 353 | /* |
1da177e4 LT |
354 | * Called after returning from RAW mode or when changing consoles - recompute |
355 | * shift_down[] and shift_state from key_down[] maybe called when keymap is | |
356 | * undefined, so that shiftkey release is seen | |
357 | */ | |
358 | void compute_shiftstate(void) | |
359 | { | |
360 | unsigned int i, j, k, sym, val; | |
361 | ||
362 | shift_state = 0; | |
363 | memset(shift_down, 0, sizeof(shift_down)); | |
fe1e8604 | 364 | |
1da177e4 LT |
365 | for (i = 0; i < ARRAY_SIZE(key_down); i++) { |
366 | ||
367 | if (!key_down[i]) | |
368 | continue; | |
369 | ||
370 | k = i * BITS_PER_LONG; | |
371 | ||
372 | for (j = 0; j < BITS_PER_LONG; j++, k++) { | |
373 | ||
374 | if (!test_bit(k, key_down)) | |
375 | continue; | |
376 | ||
377 | sym = U(key_maps[0][k]); | |
378 | if (KTYP(sym) != KT_SHIFT && KTYP(sym) != KT_SLOCK) | |
379 | continue; | |
380 | ||
381 | val = KVAL(sym); | |
382 | if (val == KVAL(K_CAPSSHIFT)) | |
383 | val = KVAL(K_SHIFT); | |
384 | ||
385 | shift_down[val]++; | |
386 | shift_state |= (1 << val); | |
387 | } | |
388 | } | |
389 | } | |
390 | ||
391 | /* | |
392 | * We have a combining character DIACR here, followed by the character CH. | |
393 | * If the combination occurs in the table, return the corresponding value. | |
394 | * Otherwise, if CH is a space or equals DIACR, return DIACR. | |
395 | * Otherwise, conclude that DIACR was not combining after all, | |
396 | * queue it and return CH. | |
397 | */ | |
b9ec4e10 | 398 | static unsigned int handle_diacr(struct vc_data *vc, unsigned int ch) |
1da177e4 | 399 | { |
b9ec4e10 | 400 | unsigned int d = diacr; |
1da177e4 LT |
401 | unsigned int i; |
402 | ||
403 | diacr = 0; | |
404 | ||
b9ec4e10 ST |
405 | if ((d & ~0xff) == BRL_UC_ROW) { |
406 | if ((ch & ~0xff) == BRL_UC_ROW) | |
407 | return d | ch; | |
408 | } else { | |
409 | for (i = 0; i < accent_table_size; i++) | |
410 | if (accent_table[i].diacr == d && accent_table[i].base == ch) | |
411 | return accent_table[i].result; | |
1da177e4 LT |
412 | } |
413 | ||
b9ec4e10 | 414 | if (ch == ' ' || ch == (BRL_UC_ROW|0) || ch == d) |
1da177e4 LT |
415 | return d; |
416 | ||
b9ec4e10 ST |
417 | if (kbd->kbdmode == VC_UNICODE) |
418 | to_utf8(vc, d); | |
419 | else if (d < 0x100) | |
420 | put_queue(vc, d); | |
421 | ||
1da177e4 LT |
422 | return ch; |
423 | } | |
424 | ||
425 | /* | |
426 | * Special function handlers | |
427 | */ | |
428 | static void fn_enter(struct vc_data *vc, struct pt_regs *regs) | |
429 | { | |
430 | if (diacr) { | |
b9ec4e10 ST |
431 | if (kbd->kbdmode == VC_UNICODE) |
432 | to_utf8(vc, diacr); | |
433 | else if (diacr < 0x100) | |
434 | put_queue(vc, diacr); | |
1da177e4 LT |
435 | diacr = 0; |
436 | } | |
437 | put_queue(vc, 13); | |
438 | if (vc_kbd_mode(kbd, VC_CRLF)) | |
439 | put_queue(vc, 10); | |
440 | } | |
441 | ||
442 | static void fn_caps_toggle(struct vc_data *vc, struct pt_regs *regs) | |
443 | { | |
444 | if (rep) | |
445 | return; | |
446 | chg_vc_kbd_led(kbd, VC_CAPSLOCK); | |
447 | } | |
448 | ||
449 | static void fn_caps_on(struct vc_data *vc, struct pt_regs *regs) | |
450 | { | |
451 | if (rep) | |
452 | return; | |
453 | set_vc_kbd_led(kbd, VC_CAPSLOCK); | |
454 | } | |
455 | ||
456 | static void fn_show_ptregs(struct vc_data *vc, struct pt_regs *regs) | |
457 | { | |
458 | if (regs) | |
459 | show_regs(regs); | |
460 | } | |
461 | ||
462 | static void fn_hold(struct vc_data *vc, struct pt_regs *regs) | |
463 | { | |
464 | struct tty_struct *tty = vc->vc_tty; | |
465 | ||
466 | if (rep || !tty) | |
467 | return; | |
468 | ||
469 | /* | |
470 | * Note: SCROLLOCK will be set (cleared) by stop_tty (start_tty); | |
471 | * these routines are also activated by ^S/^Q. | |
472 | * (And SCROLLOCK can also be set by the ioctl KDSKBLED.) | |
473 | */ | |
474 | if (tty->stopped) | |
475 | start_tty(tty); | |
476 | else | |
477 | stop_tty(tty); | |
478 | } | |
479 | ||
480 | static void fn_num(struct vc_data *vc, struct pt_regs *regs) | |
481 | { | |
482 | if (vc_kbd_mode(kbd,VC_APPLIC)) | |
483 | applkey(vc, 'P', 1); | |
484 | else | |
485 | fn_bare_num(vc, regs); | |
486 | } | |
487 | ||
488 | /* | |
489 | * Bind this to Shift-NumLock if you work in application keypad mode | |
490 | * but want to be able to change the NumLock flag. | |
491 | * Bind this to NumLock if you prefer that the NumLock key always | |
492 | * changes the NumLock flag. | |
493 | */ | |
494 | static void fn_bare_num(struct vc_data *vc, struct pt_regs *regs) | |
495 | { | |
496 | if (!rep) | |
497 | chg_vc_kbd_led(kbd, VC_NUMLOCK); | |
498 | } | |
499 | ||
500 | static void fn_lastcons(struct vc_data *vc, struct pt_regs *regs) | |
501 | { | |
502 | /* switch to the last used console, ChN */ | |
503 | set_console(last_console); | |
504 | } | |
505 | ||
506 | static void fn_dec_console(struct vc_data *vc, struct pt_regs *regs) | |
507 | { | |
508 | int i, cur = fg_console; | |
509 | ||
510 | /* Currently switching? Queue this next switch relative to that. */ | |
511 | if (want_console != -1) | |
512 | cur = want_console; | |
513 | ||
fe1e8604 | 514 | for (i = cur - 1; i != cur; i--) { |
1da177e4 | 515 | if (i == -1) |
fe1e8604 | 516 | i = MAX_NR_CONSOLES - 1; |
1da177e4 LT |
517 | if (vc_cons_allocated(i)) |
518 | break; | |
519 | } | |
520 | set_console(i); | |
521 | } | |
522 | ||
523 | static void fn_inc_console(struct vc_data *vc, struct pt_regs *regs) | |
524 | { | |
525 | int i, cur = fg_console; | |
526 | ||
527 | /* Currently switching? Queue this next switch relative to that. */ | |
528 | if (want_console != -1) | |
529 | cur = want_console; | |
530 | ||
531 | for (i = cur+1; i != cur; i++) { | |
532 | if (i == MAX_NR_CONSOLES) | |
533 | i = 0; | |
534 | if (vc_cons_allocated(i)) | |
535 | break; | |
536 | } | |
537 | set_console(i); | |
538 | } | |
539 | ||
540 | static void fn_send_intr(struct vc_data *vc, struct pt_regs *regs) | |
541 | { | |
542 | struct tty_struct *tty = vc->vc_tty; | |
543 | ||
544 | if (!tty) | |
545 | return; | |
546 | tty_insert_flip_char(tty, 0, TTY_BREAK); | |
547 | con_schedule_flip(tty); | |
548 | } | |
549 | ||
550 | static void fn_scroll_forw(struct vc_data *vc, struct pt_regs *regs) | |
551 | { | |
552 | scrollfront(vc, 0); | |
553 | } | |
554 | ||
555 | static void fn_scroll_back(struct vc_data *vc, struct pt_regs *regs) | |
556 | { | |
557 | scrollback(vc, 0); | |
558 | } | |
559 | ||
560 | static void fn_show_mem(struct vc_data *vc, struct pt_regs *regs) | |
561 | { | |
562 | show_mem(); | |
563 | } | |
564 | ||
565 | static void fn_show_state(struct vc_data *vc, struct pt_regs *regs) | |
566 | { | |
567 | show_state(); | |
568 | } | |
569 | ||
570 | static void fn_boot_it(struct vc_data *vc, struct pt_regs *regs) | |
571 | { | |
572 | ctrl_alt_del(); | |
573 | } | |
574 | ||
575 | static void fn_compose(struct vc_data *vc, struct pt_regs *regs) | |
576 | { | |
577 | dead_key_next = 1; | |
578 | } | |
579 | ||
580 | static void fn_spawn_con(struct vc_data *vc, struct pt_regs *regs) | |
581 | { | |
fe1e8604 DT |
582 | if (spawnpid) |
583 | if (kill_proc(spawnpid, spawnsig, 1)) | |
584 | spawnpid = 0; | |
1da177e4 LT |
585 | } |
586 | ||
587 | static void fn_SAK(struct vc_data *vc, struct pt_regs *regs) | |
588 | { | |
589 | struct tty_struct *tty = vc->vc_tty; | |
590 | ||
591 | /* | |
592 | * SAK should also work in all raw modes and reset | |
593 | * them properly. | |
594 | */ | |
595 | if (tty) | |
596 | do_SAK(tty); | |
597 | reset_vc(vc); | |
598 | } | |
599 | ||
600 | static void fn_null(struct vc_data *vc, struct pt_regs *regs) | |
601 | { | |
602 | compute_shiftstate(); | |
603 | } | |
604 | ||
605 | /* | |
606 | * Special key handlers | |
607 | */ | |
608 | static void k_ignore(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs) | |
609 | { | |
610 | } | |
611 | ||
612 | static void k_spec(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs) | |
613 | { | |
614 | if (up_flag) | |
615 | return; | |
616 | if (value >= ARRAY_SIZE(fn_handler)) | |
617 | return; | |
fe1e8604 DT |
618 | if ((kbd->kbdmode == VC_RAW || |
619 | kbd->kbdmode == VC_MEDIUMRAW) && | |
1da177e4 LT |
620 | value != KVAL(K_SAK)) |
621 | return; /* SAK is allowed even in raw mode */ | |
622 | fn_handler[value](vc, regs); | |
623 | } | |
624 | ||
625 | static void k_lowercase(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs) | |
626 | { | |
627 | printk(KERN_ERR "keyboard.c: k_lowercase was called - impossible\n"); | |
628 | } | |
629 | ||
b9ec4e10 | 630 | static void k_unicode(struct vc_data *vc, unsigned int value, char up_flag, struct pt_regs *regs) |
1da177e4 LT |
631 | { |
632 | if (up_flag) | |
633 | return; /* no action, if this is a key release */ | |
634 | ||
635 | if (diacr) | |
636 | value = handle_diacr(vc, value); | |
637 | ||
638 | if (dead_key_next) { | |
639 | dead_key_next = 0; | |
640 | diacr = value; | |
641 | return; | |
642 | } | |
b9ec4e10 ST |
643 | if (kbd->kbdmode == VC_UNICODE) |
644 | to_utf8(vc, value); | |
645 | else if (value < 0x100) | |
646 | put_queue(vc, value); | |
1da177e4 LT |
647 | } |
648 | ||
649 | /* | |
650 | * Handle dead key. Note that we now may have several | |
651 | * dead keys modifying the same character. Very useful | |
652 | * for Vietnamese. | |
653 | */ | |
b9ec4e10 | 654 | static void k_deadunicode(struct vc_data *vc, unsigned int value, char up_flag, struct pt_regs *regs) |
1da177e4 LT |
655 | { |
656 | if (up_flag) | |
657 | return; | |
658 | diacr = (diacr ? handle_diacr(vc, value) : value); | |
659 | } | |
660 | ||
b9ec4e10 ST |
661 | static void k_self(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs) |
662 | { | |
663 | k_unicode(vc, value, up_flag, regs); | |
664 | } | |
665 | ||
666 | static void k_dead2(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs) | |
667 | { | |
668 | k_deadunicode(vc, value, up_flag, regs); | |
669 | } | |
670 | ||
1da177e4 LT |
671 | /* |
672 | * Obsolete - for backwards compatibility only | |
673 | */ | |
674 | static void k_dead(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs) | |
675 | { | |
0f5e560e | 676 | static const unsigned char ret_diacr[NR_DEAD] = {'`', '\'', '^', '~', '"', ',' }; |
1da177e4 | 677 | value = ret_diacr[value]; |
b9ec4e10 | 678 | k_deadunicode(vc, value, up_flag, regs); |
1da177e4 LT |
679 | } |
680 | ||
681 | static void k_cons(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs) | |
682 | { | |
683 | if (up_flag) | |
684 | return; | |
685 | set_console(value); | |
686 | } | |
687 | ||
688 | static void k_fn(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs) | |
689 | { | |
690 | unsigned v; | |
691 | ||
692 | if (up_flag) | |
693 | return; | |
694 | v = value; | |
695 | if (v < ARRAY_SIZE(func_table)) { | |
696 | if (func_table[value]) | |
697 | puts_queue(vc, func_table[value]); | |
698 | } else | |
699 | printk(KERN_ERR "k_fn called with value=%d\n", value); | |
700 | } | |
701 | ||
702 | static void k_cur(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs) | |
703 | { | |
704 | static const char *cur_chars = "BDCA"; | |
705 | ||
706 | if (up_flag) | |
707 | return; | |
708 | applkey(vc, cur_chars[value], vc_kbd_mode(kbd, VC_CKMODE)); | |
709 | } | |
710 | ||
711 | static void k_pad(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs) | |
712 | { | |
0f5e560e AM |
713 | static const char pad_chars[] = "0123456789+-*/\015,.?()#"; |
714 | static const char app_map[] = "pqrstuvwxylSRQMnnmPQS"; | |
1da177e4 LT |
715 | |
716 | if (up_flag) | |
717 | return; /* no action, if this is a key release */ | |
718 | ||
719 | /* kludge... shift forces cursor/number keys */ | |
720 | if (vc_kbd_mode(kbd, VC_APPLIC) && !shift_down[KG_SHIFT]) { | |
721 | applkey(vc, app_map[value], 1); | |
722 | return; | |
723 | } | |
724 | ||
725 | if (!vc_kbd_led(kbd, VC_NUMLOCK)) | |
726 | switch (value) { | |
727 | case KVAL(K_PCOMMA): | |
728 | case KVAL(K_PDOT): | |
729 | k_fn(vc, KVAL(K_REMOVE), 0, regs); | |
730 | return; | |
731 | case KVAL(K_P0): | |
732 | k_fn(vc, KVAL(K_INSERT), 0, regs); | |
733 | return; | |
734 | case KVAL(K_P1): | |
735 | k_fn(vc, KVAL(K_SELECT), 0, regs); | |
736 | return; | |
737 | case KVAL(K_P2): | |
738 | k_cur(vc, KVAL(K_DOWN), 0, regs); | |
739 | return; | |
740 | case KVAL(K_P3): | |
741 | k_fn(vc, KVAL(K_PGDN), 0, regs); | |
742 | return; | |
743 | case KVAL(K_P4): | |
744 | k_cur(vc, KVAL(K_LEFT), 0, regs); | |
745 | return; | |
746 | case KVAL(K_P6): | |
747 | k_cur(vc, KVAL(K_RIGHT), 0, regs); | |
748 | return; | |
749 | case KVAL(K_P7): | |
750 | k_fn(vc, KVAL(K_FIND), 0, regs); | |
751 | return; | |
752 | case KVAL(K_P8): | |
753 | k_cur(vc, KVAL(K_UP), 0, regs); | |
754 | return; | |
755 | case KVAL(K_P9): | |
756 | k_fn(vc, KVAL(K_PGUP), 0, regs); | |
757 | return; | |
758 | case KVAL(K_P5): | |
759 | applkey(vc, 'G', vc_kbd_mode(kbd, VC_APPLIC)); | |
760 | return; | |
761 | } | |
762 | ||
763 | put_queue(vc, pad_chars[value]); | |
764 | if (value == KVAL(K_PENTER) && vc_kbd_mode(kbd, VC_CRLF)) | |
765 | put_queue(vc, 10); | |
766 | } | |
767 | ||
768 | static void k_shift(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs) | |
769 | { | |
770 | int old_state = shift_state; | |
771 | ||
772 | if (rep) | |
773 | return; | |
774 | /* | |
775 | * Mimic typewriter: | |
776 | * a CapsShift key acts like Shift but undoes CapsLock | |
777 | */ | |
778 | if (value == KVAL(K_CAPSSHIFT)) { | |
779 | value = KVAL(K_SHIFT); | |
780 | if (!up_flag) | |
781 | clr_vc_kbd_led(kbd, VC_CAPSLOCK); | |
782 | } | |
783 | ||
784 | if (up_flag) { | |
785 | /* | |
786 | * handle the case that two shift or control | |
787 | * keys are depressed simultaneously | |
788 | */ | |
789 | if (shift_down[value]) | |
790 | shift_down[value]--; | |
791 | } else | |
792 | shift_down[value]++; | |
793 | ||
794 | if (shift_down[value]) | |
795 | shift_state |= (1 << value); | |
796 | else | |
797 | shift_state &= ~(1 << value); | |
798 | ||
799 | /* kludge */ | |
800 | if (up_flag && shift_state != old_state && npadch != -1) { | |
801 | if (kbd->kbdmode == VC_UNICODE) | |
802 | to_utf8(vc, npadch & 0xffff); | |
803 | else | |
804 | put_queue(vc, npadch & 0xff); | |
805 | npadch = -1; | |
806 | } | |
807 | } | |
808 | ||
809 | static void k_meta(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs) | |
810 | { | |
811 | if (up_flag) | |
812 | return; | |
813 | ||
814 | if (vc_kbd_mode(kbd, VC_META)) { | |
815 | put_queue(vc, '\033'); | |
816 | put_queue(vc, value); | |
817 | } else | |
818 | put_queue(vc, value | 0x80); | |
819 | } | |
820 | ||
821 | static void k_ascii(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs) | |
822 | { | |
823 | int base; | |
824 | ||
825 | if (up_flag) | |
826 | return; | |
827 | ||
828 | if (value < 10) { | |
829 | /* decimal input of code, while Alt depressed */ | |
830 | base = 10; | |
831 | } else { | |
832 | /* hexadecimal input of code, while AltGr depressed */ | |
833 | value -= 10; | |
834 | base = 16; | |
835 | } | |
836 | ||
837 | if (npadch == -1) | |
838 | npadch = value; | |
839 | else | |
840 | npadch = npadch * base + value; | |
841 | } | |
842 | ||
843 | static void k_lock(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs) | |
844 | { | |
845 | if (up_flag || rep) | |
846 | return; | |
847 | chg_vc_kbd_lock(kbd, value); | |
848 | } | |
849 | ||
850 | static void k_slock(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs) | |
851 | { | |
852 | k_shift(vc, value, up_flag, regs); | |
853 | if (up_flag || rep) | |
854 | return; | |
855 | chg_vc_kbd_slock(kbd, value); | |
856 | /* try to make Alt, oops, AltGr and such work */ | |
857 | if (!key_maps[kbd->lockstate ^ kbd->slockstate]) { | |
858 | kbd->slockstate = 0; | |
859 | chg_vc_kbd_slock(kbd, value); | |
860 | } | |
861 | } | |
862 | ||
b9ec4e10 | 863 | /* by default, 300ms interval for combination release */ |
77426d72 ST |
864 | static unsigned brl_timeout = 300; |
865 | MODULE_PARM_DESC(brl_timeout, "Braille keys release delay in ms (0 for commit on first key release)"); | |
866 | module_param(brl_timeout, uint, 0644); | |
867 | ||
868 | static unsigned brl_nbchords = 1; | |
869 | MODULE_PARM_DESC(brl_nbchords, "Number of chords that produce a braille pattern (0 for dead chords)"); | |
870 | module_param(brl_nbchords, uint, 0644); | |
871 | ||
872 | static void k_brlcommit(struct vc_data *vc, unsigned int pattern, char up_flag, struct pt_regs *regs) | |
873 | { | |
874 | static unsigned long chords; | |
875 | static unsigned committed; | |
876 | ||
877 | if (!brl_nbchords) | |
878 | k_deadunicode(vc, BRL_UC_ROW | pattern, up_flag, regs); | |
879 | else { | |
880 | committed |= pattern; | |
881 | chords++; | |
882 | if (chords == brl_nbchords) { | |
883 | k_unicode(vc, BRL_UC_ROW | committed, up_flag, regs); | |
884 | chords = 0; | |
885 | committed = 0; | |
886 | } | |
887 | } | |
888 | } | |
889 | ||
b9ec4e10 ST |
890 | static void k_brl(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs) |
891 | { | |
892 | static unsigned pressed,committing; | |
893 | static unsigned long releasestart; | |
894 | ||
895 | if (kbd->kbdmode != VC_UNICODE) { | |
896 | if (!up_flag) | |
897 | printk("keyboard mode must be unicode for braille patterns\n"); | |
898 | return; | |
899 | } | |
900 | ||
901 | if (!value) { | |
902 | k_unicode(vc, BRL_UC_ROW, up_flag, regs); | |
903 | return; | |
904 | } | |
905 | ||
906 | if (value > 8) | |
907 | return; | |
908 | ||
b9ec4e10 ST |
909 | if (up_flag) { |
910 | if (brl_timeout) { | |
911 | if (!committing || | |
912 | jiffies - releasestart > (brl_timeout * HZ) / 1000) { | |
913 | committing = pressed; | |
914 | releasestart = jiffies; | |
915 | } | |
916 | pressed &= ~(1 << (value - 1)); | |
917 | if (!pressed) { | |
918 | if (committing) { | |
77426d72 | 919 | k_brlcommit(vc, committing, 0, regs); |
b9ec4e10 ST |
920 | committing = 0; |
921 | } | |
922 | } | |
923 | } else { | |
924 | if (committing) { | |
77426d72 | 925 | k_brlcommit(vc, committing, 0, regs); |
b9ec4e10 ST |
926 | committing = 0; |
927 | } | |
928 | pressed &= ~(1 << (value - 1)); | |
929 | } | |
930 | } else { | |
931 | pressed |= 1 << (value - 1); | |
932 | if (!brl_timeout) | |
933 | committing = pressed; | |
934 | } | |
935 | } | |
936 | ||
1da177e4 LT |
937 | /* |
938 | * The leds display either (i) the status of NumLock, CapsLock, ScrollLock, | |
939 | * or (ii) whatever pattern of lights people want to show using KDSETLED, | |
940 | * or (iii) specified bits of specified words in kernel memory. | |
941 | */ | |
942 | unsigned char getledstate(void) | |
943 | { | |
944 | return ledstate; | |
945 | } | |
946 | ||
947 | void setledstate(struct kbd_struct *kbd, unsigned int led) | |
948 | { | |
949 | if (!(led & ~7)) { | |
950 | ledioctl = led; | |
951 | kbd->ledmode = LED_SHOW_IOCTL; | |
952 | } else | |
953 | kbd->ledmode = LED_SHOW_FLAGS; | |
954 | set_leds(); | |
955 | } | |
956 | ||
957 | static inline unsigned char getleds(void) | |
958 | { | |
959 | struct kbd_struct *kbd = kbd_table + fg_console; | |
960 | unsigned char leds; | |
961 | int i; | |
962 | ||
963 | if (kbd->ledmode == LED_SHOW_IOCTL) | |
964 | return ledioctl; | |
965 | ||
966 | leds = kbd->ledflagstate; | |
967 | ||
968 | if (kbd->ledmode == LED_SHOW_MEM) { | |
969 | for (i = 0; i < 3; i++) | |
970 | if (ledptrs[i].valid) { | |
971 | if (*ledptrs[i].addr & ledptrs[i].mask) | |
972 | leds |= (1 << i); | |
973 | else | |
974 | leds &= ~(1 << i); | |
975 | } | |
976 | } | |
977 | return leds; | |
978 | } | |
979 | ||
980 | /* | |
981 | * This routine is the bottom half of the keyboard interrupt | |
982 | * routine, and runs with all interrupts enabled. It does | |
983 | * console changing, led setting and copy_to_cooked, which can | |
984 | * take a reasonably long time. | |
985 | * | |
986 | * Aside from timing (which isn't really that important for | |
987 | * keyboard interrupts as they happen often), using the software | |
988 | * interrupt routines for this thing allows us to easily mask | |
989 | * this when we don't want any of the above to happen. | |
990 | * This allows for easy and efficient race-condition prevention | |
991 | * for kbd_refresh_leds => input_event(dev, EV_LED, ...) => ... | |
992 | */ | |
993 | ||
994 | static void kbd_bh(unsigned long dummy) | |
995 | { | |
fe1e8604 | 996 | struct list_head *node; |
1da177e4 LT |
997 | unsigned char leds = getleds(); |
998 | ||
999 | if (leds != ledstate) { | |
fe1e8604 | 1000 | list_for_each(node, &kbd_handler.h_list) { |
1da177e4 LT |
1001 | struct input_handle * handle = to_handle_h(node); |
1002 | input_event(handle->dev, EV_LED, LED_SCROLLL, !!(leds & 0x01)); | |
1003 | input_event(handle->dev, EV_LED, LED_NUML, !!(leds & 0x02)); | |
1004 | input_event(handle->dev, EV_LED, LED_CAPSL, !!(leds & 0x04)); | |
1005 | input_sync(handle->dev); | |
1006 | } | |
1007 | } | |
1008 | ||
1009 | ledstate = leds; | |
1010 | } | |
1011 | ||
1012 | DECLARE_TASKLET_DISABLED(keyboard_tasklet, kbd_bh, 0); | |
1013 | ||
1014 | /* | |
1015 | * This allows a newly plugged keyboard to pick the LED state. | |
1016 | */ | |
1017 | static void kbd_refresh_leds(struct input_handle *handle) | |
1018 | { | |
1019 | unsigned char leds = ledstate; | |
1020 | ||
1021 | tasklet_disable(&keyboard_tasklet); | |
1022 | if (leds != 0xff) { | |
1023 | input_event(handle->dev, EV_LED, LED_SCROLLL, !!(leds & 0x01)); | |
1024 | input_event(handle->dev, EV_LED, LED_NUML, !!(leds & 0x02)); | |
1025 | input_event(handle->dev, EV_LED, LED_CAPSL, !!(leds & 0x04)); | |
1026 | input_sync(handle->dev); | |
1027 | } | |
1028 | tasklet_enable(&keyboard_tasklet); | |
1029 | } | |
1030 | ||
1031 | #if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_ALPHA) ||\ | |
0b57ee9e AB |
1032 | defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_SPARC) ||\ |
1033 | defined(CONFIG_PARISC) || defined(CONFIG_SUPERH) ||\ | |
1da177e4 LT |
1034 | (defined(CONFIG_ARM) && defined(CONFIG_KEYBOARD_ATKBD) && !defined(CONFIG_ARCH_RPC)) |
1035 | ||
1036 | #define HW_RAW(dev) (test_bit(EV_MSC, dev->evbit) && test_bit(MSC_RAW, dev->mscbit) &&\ | |
1037 | ((dev)->id.bustype == BUS_I8042) && ((dev)->id.vendor == 0x0001) && ((dev)->id.product == 0x0001)) | |
1038 | ||
0f5e560e | 1039 | static const unsigned short x86_keycodes[256] = |
1da177e4 LT |
1040 | { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, |
1041 | 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, | |
1042 | 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, | |
1043 | 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, | |
1044 | 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, | |
1045 | 80, 81, 82, 83, 84,118, 86, 87, 88,115,120,119,121,112,123, 92, | |
1046 | 284,285,309,298,312, 91,327,328,329,331,333,335,336,337,338,339, | |
1047 | 367,288,302,304,350, 89,334,326,267,126,268,269,125,347,348,349, | |
1048 | 360,261,262,263,268,376,100,101,321,316,373,286,289,102,351,355, | |
1049 | 103,104,105,275,287,279,306,106,274,107,294,364,358,363,362,361, | |
1050 | 291,108,381,281,290,272,292,305,280, 99,112,257,258,359,113,114, | |
1051 | 264,117,271,374,379,265,266, 93, 94, 95, 85,259,375,260, 90,116, | |
1052 | 377,109,111,277,278,282,283,295,296,297,299,300,301,293,303,307, | |
1053 | 308,310,313,314,315,317,318,319,320,357,322,323,324,325,276,330, | |
1054 | 332,340,365,342,343,344,345,346,356,270,341,368,369,370,371,372 }; | |
1055 | ||
1056 | #ifdef CONFIG_MAC_EMUMOUSEBTN | |
1057 | extern int mac_hid_mouse_emulate_buttons(int, int, int); | |
1058 | #endif /* CONFIG_MAC_EMUMOUSEBTN */ | |
1059 | ||
0b57ee9e | 1060 | #ifdef CONFIG_SPARC |
1da177e4 LT |
1061 | static int sparc_l1_a_state = 0; |
1062 | extern void sun_do_break(void); | |
1063 | #endif | |
1064 | ||
fe1e8604 | 1065 | static int emulate_raw(struct vc_data *vc, unsigned int keycode, |
1da177e4 LT |
1066 | unsigned char up_flag) |
1067 | { | |
1068 | if (keycode > 255 || !x86_keycodes[keycode]) | |
fe1e8604 | 1069 | return -1; |
1da177e4 LT |
1070 | |
1071 | switch (keycode) { | |
1072 | case KEY_PAUSE: | |
1073 | put_queue(vc, 0xe1); | |
1074 | put_queue(vc, 0x1d | up_flag); | |
1075 | put_queue(vc, 0x45 | up_flag); | |
1076 | return 0; | |
b9ab58dd | 1077 | case KEY_HANGEUL: |
0ae051a1 DT |
1078 | if (!up_flag) |
1079 | put_queue(vc, 0xf2); | |
1da177e4 LT |
1080 | return 0; |
1081 | case KEY_HANJA: | |
0ae051a1 DT |
1082 | if (!up_flag) |
1083 | put_queue(vc, 0xf1); | |
1da177e4 | 1084 | return 0; |
fe1e8604 | 1085 | } |
1da177e4 LT |
1086 | |
1087 | if (keycode == KEY_SYSRQ && sysrq_alt) { | |
1088 | put_queue(vc, 0x54 | up_flag); | |
1089 | return 0; | |
1090 | } | |
1091 | ||
1092 | if (x86_keycodes[keycode] & 0x100) | |
1093 | put_queue(vc, 0xe0); | |
1094 | ||
1095 | put_queue(vc, (x86_keycodes[keycode] & 0x7f) | up_flag); | |
1096 | ||
1097 | if (keycode == KEY_SYSRQ) { | |
1098 | put_queue(vc, 0xe0); | |
1099 | put_queue(vc, 0x37 | up_flag); | |
1100 | } | |
1101 | ||
1102 | return 0; | |
1103 | } | |
1104 | ||
1105 | #else | |
1106 | ||
1107 | #define HW_RAW(dev) 0 | |
1108 | ||
1109 | #warning "Cannot generate rawmode keyboard for your architecture yet." | |
1110 | ||
1111 | static int emulate_raw(struct vc_data *vc, unsigned int keycode, unsigned char up_flag) | |
1112 | { | |
1113 | if (keycode > 127) | |
1114 | return -1; | |
1115 | ||
1116 | put_queue(vc, keycode | up_flag); | |
1117 | return 0; | |
1118 | } | |
1119 | #endif | |
1120 | ||
1121 | static void kbd_rawcode(unsigned char data) | |
1122 | { | |
1123 | struct vc_data *vc = vc_cons[fg_console].d; | |
1124 | kbd = kbd_table + fg_console; | |
1125 | if (kbd->kbdmode == VC_RAW) | |
1126 | put_queue(vc, data); | |
1127 | } | |
1128 | ||
75c96f85 AB |
1129 | static void kbd_keycode(unsigned int keycode, int down, |
1130 | int hw_raw, struct pt_regs *regs) | |
1da177e4 LT |
1131 | { |
1132 | struct vc_data *vc = vc_cons[fg_console].d; | |
1133 | unsigned short keysym, *key_map; | |
1134 | unsigned char type, raw_mode; | |
1135 | struct tty_struct *tty; | |
1136 | int shift_final; | |
1137 | ||
1138 | tty = vc->vc_tty; | |
1139 | ||
1140 | if (tty && (!tty->driver_data)) { | |
1141 | /* No driver data? Strange. Okay we fix it then. */ | |
1142 | tty->driver_data = vc; | |
1143 | } | |
1144 | ||
1145 | kbd = kbd_table + fg_console; | |
1146 | ||
1147 | if (keycode == KEY_LEFTALT || keycode == KEY_RIGHTALT) | |
d2be8ee5 | 1148 | sysrq_alt = down ? keycode : 0; |
0b57ee9e | 1149 | #ifdef CONFIG_SPARC |
1da177e4 LT |
1150 | if (keycode == KEY_STOP) |
1151 | sparc_l1_a_state = down; | |
1152 | #endif | |
1153 | ||
1154 | rep = (down == 2); | |
1155 | ||
1156 | #ifdef CONFIG_MAC_EMUMOUSEBTN | |
1157 | if (mac_hid_mouse_emulate_buttons(1, keycode, down)) | |
1158 | return; | |
1159 | #endif /* CONFIG_MAC_EMUMOUSEBTN */ | |
1160 | ||
1161 | if ((raw_mode = (kbd->kbdmode == VC_RAW)) && !hw_raw) | |
1162 | if (emulate_raw(vc, keycode, !down << 7)) | |
1163 | if (keycode < BTN_MISC) | |
1164 | printk(KERN_WARNING "keyboard.c: can't emulate rawmode for keycode %d\n", keycode); | |
1165 | ||
1166 | #ifdef CONFIG_MAGIC_SYSRQ /* Handle the SysRq Hack */ | |
1167 | if (keycode == KEY_SYSRQ && (sysrq_down || (down == 1 && sysrq_alt))) { | |
d2be8ee5 FR |
1168 | if (!sysrq_down) { |
1169 | sysrq_down = down; | |
1170 | sysrq_alt_use = sysrq_alt; | |
1171 | } | |
1da177e4 LT |
1172 | return; |
1173 | } | |
d2be8ee5 FR |
1174 | if (sysrq_down && !down && keycode == sysrq_alt_use) |
1175 | sysrq_down = 0; | |
1da177e4 LT |
1176 | if (sysrq_down && down && !rep) { |
1177 | handle_sysrq(kbd_sysrq_xlate[keycode], regs, tty); | |
1178 | return; | |
1179 | } | |
1180 | #endif | |
0b57ee9e | 1181 | #ifdef CONFIG_SPARC |
1da177e4 LT |
1182 | if (keycode == KEY_A && sparc_l1_a_state) { |
1183 | sparc_l1_a_state = 0; | |
1184 | sun_do_break(); | |
1185 | } | |
1186 | #endif | |
1187 | ||
1188 | if (kbd->kbdmode == VC_MEDIUMRAW) { | |
1189 | /* | |
1190 | * This is extended medium raw mode, with keys above 127 | |
1191 | * encoded as 0, high 7 bits, low 7 bits, with the 0 bearing | |
1192 | * the 'up' flag if needed. 0 is reserved, so this shouldn't | |
1193 | * interfere with anything else. The two bytes after 0 will | |
1194 | * always have the up flag set not to interfere with older | |
1195 | * applications. This allows for 16384 different keycodes, | |
1196 | * which should be enough. | |
1197 | */ | |
1198 | if (keycode < 128) { | |
1199 | put_queue(vc, keycode | (!down << 7)); | |
1200 | } else { | |
1201 | put_queue(vc, !down << 7); | |
1202 | put_queue(vc, (keycode >> 7) | 0x80); | |
1203 | put_queue(vc, keycode | 0x80); | |
1204 | } | |
1205 | raw_mode = 1; | |
1206 | } | |
1207 | ||
1208 | if (down) | |
1209 | set_bit(keycode, key_down); | |
1210 | else | |
1211 | clear_bit(keycode, key_down); | |
1212 | ||
fe1e8604 DT |
1213 | if (rep && |
1214 | (!vc_kbd_mode(kbd, VC_REPEAT) || | |
1215 | (tty && !L_ECHO(tty) && tty->driver->chars_in_buffer(tty)))) { | |
1da177e4 LT |
1216 | /* |
1217 | * Don't repeat a key if the input buffers are not empty and the | |
fe1e8604 | 1218 | * characters get aren't echoed locally. This makes key repeat |
1da177e4 LT |
1219 | * usable with slow applications and under heavy loads. |
1220 | */ | |
1221 | return; | |
1222 | } | |
1223 | ||
1224 | shift_final = (shift_state | kbd->slockstate) ^ kbd->lockstate; | |
1225 | key_map = key_maps[shift_final]; | |
1226 | ||
1227 | if (!key_map) { | |
1228 | compute_shiftstate(); | |
1229 | kbd->slockstate = 0; | |
1230 | return; | |
1231 | } | |
1232 | ||
1233 | if (keycode > NR_KEYS) | |
b9ec4e10 ST |
1234 | if (keycode >= KEY_BRL_DOT1 && keycode <= KEY_BRL_DOT8) |
1235 | keysym = K(KT_BRL, keycode - KEY_BRL_DOT1 + 1); | |
1236 | else | |
1237 | return; | |
1238 | else | |
1239 | keysym = key_map[keycode]; | |
1da177e4 | 1240 | |
1da177e4 LT |
1241 | type = KTYP(keysym); |
1242 | ||
1243 | if (type < 0xf0) { | |
fe1e8604 DT |
1244 | if (down && !raw_mode) |
1245 | to_utf8(vc, keysym); | |
1da177e4 LT |
1246 | return; |
1247 | } | |
1248 | ||
1249 | type -= 0xf0; | |
1250 | ||
1251 | if (raw_mode && type != KT_SPEC && type != KT_SHIFT) | |
1252 | return; | |
1253 | ||
1254 | if (type == KT_LETTER) { | |
1255 | type = KT_LATIN; | |
1256 | if (vc_kbd_led(kbd, VC_CAPSLOCK)) { | |
1257 | key_map = key_maps[shift_final ^ (1 << KG_SHIFT)]; | |
1258 | if (key_map) | |
1259 | keysym = key_map[keycode]; | |
1260 | } | |
1261 | } | |
1262 | ||
1263 | (*k_handler[type])(vc, keysym & 0xff, !down, regs); | |
1264 | ||
1265 | if (type != KT_SLOCK) | |
1266 | kbd->slockstate = 0; | |
1267 | } | |
1268 | ||
fe1e8604 | 1269 | static void kbd_event(struct input_handle *handle, unsigned int event_type, |
1da177e4 LT |
1270 | unsigned int event_code, int value) |
1271 | { | |
1272 | if (event_type == EV_MSC && event_code == MSC_RAW && HW_RAW(handle->dev)) | |
1273 | kbd_rawcode(value); | |
1274 | if (event_type == EV_KEY) | |
1275 | kbd_keycode(event_code, value, HW_RAW(handle->dev), handle->dev->regs); | |
1276 | tasklet_schedule(&keyboard_tasklet); | |
1277 | do_poke_blanked_console = 1; | |
1278 | schedule_console_callback(); | |
1279 | } | |
1280 | ||
1da177e4 LT |
1281 | /* |
1282 | * When a keyboard (or other input device) is found, the kbd_connect | |
1283 | * function is called. The function then looks at the device, and if it | |
1284 | * likes it, it can open it and get events from it. In this (kbd_connect) | |
1285 | * function, we should decide which VT to bind that keyboard to initially. | |
1286 | */ | |
fe1e8604 | 1287 | static struct input_handle *kbd_connect(struct input_handler *handler, |
1da177e4 LT |
1288 | struct input_dev *dev, |
1289 | struct input_device_id *id) | |
1290 | { | |
1291 | struct input_handle *handle; | |
1292 | int i; | |
1293 | ||
1294 | for (i = KEY_RESERVED; i < BTN_MISC; i++) | |
fe1e8604 DT |
1295 | if (test_bit(i, dev->keybit)) |
1296 | break; | |
1da177e4 | 1297 | |
fe1e8604 | 1298 | if (i == BTN_MISC && !test_bit(EV_SND, dev->evbit)) |
1da177e4 LT |
1299 | return NULL; |
1300 | ||
fe1e8604 | 1301 | if (!(handle = kmalloc(sizeof(struct input_handle), GFP_KERNEL))) |
1da177e4 LT |
1302 | return NULL; |
1303 | memset(handle, 0, sizeof(struct input_handle)); | |
1304 | ||
1305 | handle->dev = dev; | |
1306 | handle->handler = handler; | |
fe1e8604 | 1307 | handle->name = "kbd"; |
1da177e4 LT |
1308 | |
1309 | input_open_device(handle); | |
1310 | kbd_refresh_leds(handle); | |
1311 | ||
1312 | return handle; | |
1313 | } | |
1314 | ||
1315 | static void kbd_disconnect(struct input_handle *handle) | |
1316 | { | |
1317 | input_close_device(handle); | |
1318 | kfree(handle); | |
1319 | } | |
1320 | ||
1321 | static struct input_device_id kbd_ids[] = { | |
1322 | { | |
1323 | .flags = INPUT_DEVICE_ID_MATCH_EVBIT, | |
1324 | .evbit = { BIT(EV_KEY) }, | |
1325 | }, | |
fe1e8604 | 1326 | |
1da177e4 LT |
1327 | { |
1328 | .flags = INPUT_DEVICE_ID_MATCH_EVBIT, | |
1329 | .evbit = { BIT(EV_SND) }, | |
fe1e8604 | 1330 | }, |
1da177e4 LT |
1331 | |
1332 | { }, /* Terminating entry */ | |
1333 | }; | |
1334 | ||
1335 | MODULE_DEVICE_TABLE(input, kbd_ids); | |
1336 | ||
1337 | static struct input_handler kbd_handler = { | |
1338 | .event = kbd_event, | |
1339 | .connect = kbd_connect, | |
1340 | .disconnect = kbd_disconnect, | |
1341 | .name = "kbd", | |
1342 | .id_table = kbd_ids, | |
1343 | }; | |
1344 | ||
1345 | int __init kbd_init(void) | |
1346 | { | |
1347 | int i; | |
1348 | ||
1349 | kbd0.ledflagstate = kbd0.default_ledflagstate = KBD_DEFLEDS; | |
1350 | kbd0.ledmode = LED_SHOW_FLAGS; | |
1351 | kbd0.lockstate = KBD_DEFLOCK; | |
1352 | kbd0.slockstate = 0; | |
1353 | kbd0.modeflags = KBD_DEFMODE; | |
1354 | kbd0.kbdmode = VC_XLATE; | |
1355 | ||
1356 | for (i = 0 ; i < MAX_NR_CONSOLES ; i++) | |
1357 | kbd_table[i] = kbd0; | |
1358 | ||
1359 | input_register_handler(&kbd_handler); | |
1360 | ||
1361 | tasklet_enable(&keyboard_tasklet); | |
1362 | tasklet_schedule(&keyboard_tasklet); | |
1363 | ||
1364 | return 0; | |
1365 | } |