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> | |
7d12e780 | 35 | #include <linux/irq.h> |
1da177e4 LT |
36 | |
37 | #include <linux/kbd_kern.h> | |
38 | #include <linux/kbd_diacr.h> | |
39 | #include <linux/vt_kern.h> | |
40 | #include <linux/sysrq.h> | |
41 | #include <linux/input.h> | |
83cc5ed3 | 42 | #include <linux/reboot.h> |
1da177e4 LT |
43 | |
44 | static void kbd_disconnect(struct input_handle *handle); | |
45 | extern void ctrl_alt_del(void); | |
46 | ||
47 | /* | |
48 | * Exported functions/variables | |
49 | */ | |
50 | ||
51 | #define KBD_DEFMODE ((1 << VC_REPEAT) | (1 << VC_META)) | |
52 | ||
53 | /* | |
54 | * Some laptops take the 789uiojklm,. keys as number pad when NumLock is on. | |
55 | * This seems a good reason to start with NumLock off. On HIL keyboards | |
fe1e8604 | 56 | * of PARISC machines however there is no NumLock key and everyone expects the keypad |
1da177e4 LT |
57 | * to be used for numbers. |
58 | */ | |
59 | ||
60 | #if defined(CONFIG_PARISC) && (defined(CONFIG_KEYBOARD_HIL) || defined(CONFIG_KEYBOARD_HIL_OLD)) | |
61 | #define KBD_DEFLEDS (1 << VC_NUMLOCK) | |
62 | #else | |
63 | #define KBD_DEFLEDS 0 | |
64 | #endif | |
65 | ||
66 | #define KBD_DEFLOCK 0 | |
67 | ||
68 | void compute_shiftstate(void); | |
69 | ||
70 | /* | |
71 | * Handler Tables. | |
72 | */ | |
73 | ||
74 | #define K_HANDLERS\ | |
75 | k_self, k_fn, k_spec, k_pad,\ | |
76 | k_dead, k_cons, k_cur, k_shift,\ | |
77 | k_meta, k_ascii, k_lock, k_lowercase,\ | |
b9ec4e10 | 78 | k_slock, k_dead2, k_brl, k_ignore |
1da177e4 | 79 | |
fe1e8604 | 80 | typedef void (k_handler_fn)(struct vc_data *vc, unsigned char value, |
7d12e780 | 81 | char up_flag); |
1da177e4 LT |
82 | static k_handler_fn K_HANDLERS; |
83 | static k_handler_fn *k_handler[16] = { K_HANDLERS }; | |
84 | ||
85 | #define FN_HANDLERS\ | |
fe1e8604 DT |
86 | fn_null, fn_enter, fn_show_ptregs, fn_show_mem,\ |
87 | fn_show_state, fn_send_intr, fn_lastcons, fn_caps_toggle,\ | |
88 | fn_num, fn_hold, fn_scroll_forw, fn_scroll_back,\ | |
89 | fn_boot_it, fn_caps_on, fn_compose, fn_SAK,\ | |
90 | fn_dec_console, fn_inc_console, fn_spawn_con, fn_bare_num | |
1da177e4 | 91 | |
7d12e780 | 92 | typedef void (fn_handler_fn)(struct vc_data *vc); |
1da177e4 LT |
93 | static fn_handler_fn FN_HANDLERS; |
94 | static fn_handler_fn *fn_handler[] = { FN_HANDLERS }; | |
95 | ||
96 | /* | |
97 | * Variables exported for vt_ioctl.c | |
98 | */ | |
99 | ||
100 | /* maximum values each key_handler can handle */ | |
101 | const int max_vals[] = { | |
102 | 255, ARRAY_SIZE(func_table) - 1, ARRAY_SIZE(fn_handler) - 1, NR_PAD - 1, | |
103 | NR_DEAD - 1, 255, 3, NR_SHIFT - 1, 255, NR_ASCII - 1, NR_LOCK - 1, | |
b9ec4e10 | 104 | 255, NR_LOCK - 1, 255, NR_BRL - 1 |
1da177e4 LT |
105 | }; |
106 | ||
107 | const int NR_TYPES = ARRAY_SIZE(max_vals); | |
108 | ||
109 | struct kbd_struct kbd_table[MAX_NR_CONSOLES]; | |
110 | static struct kbd_struct *kbd = kbd_table; | |
1da177e4 | 111 | |
81af8d67 EB |
112 | struct vt_spawn_console vt_spawn_con = { |
113 | .lock = SPIN_LOCK_UNLOCKED, | |
114 | .pid = NULL, | |
115 | .sig = 0, | |
116 | }; | |
1da177e4 LT |
117 | |
118 | /* | |
119 | * Variables exported for vt.c | |
120 | */ | |
121 | ||
122 | int shift_state = 0; | |
123 | ||
124 | /* | |
125 | * Internal Data. | |
126 | */ | |
127 | ||
128 | static struct input_handler kbd_handler; | |
129 | static unsigned long key_down[NBITS(KEY_MAX)]; /* keyboard key bitmap */ | |
130 | static unsigned char shift_down[NR_SHIFT]; /* shift state counters.. */ | |
131 | static int dead_key_next; | |
132 | static int npadch = -1; /* -1 or number assembled on pad */ | |
b9ec4e10 | 133 | static unsigned int diacr; |
1da177e4 LT |
134 | static char rep; /* flag telling character repeat */ |
135 | ||
136 | static unsigned char ledstate = 0xff; /* undefined */ | |
137 | static unsigned char ledioctl; | |
138 | ||
139 | static struct ledptr { | |
140 | unsigned int *addr; | |
141 | unsigned int mask; | |
142 | unsigned char valid:1; | |
143 | } ledptrs[3]; | |
144 | ||
145 | /* Simple translation table for the SysRq keys */ | |
146 | ||
147 | #ifdef CONFIG_MAGIC_SYSRQ | |
148 | unsigned char kbd_sysrq_xlate[KEY_MAX + 1] = | |
149 | "\000\0331234567890-=\177\t" /* 0x00 - 0x0f */ | |
150 | "qwertyuiop[]\r\000as" /* 0x10 - 0x1f */ | |
151 | "dfghjkl;'`\000\\zxcv" /* 0x20 - 0x2f */ | |
152 | "bnm,./\000*\000 \000\201\202\203\204\205" /* 0x30 - 0x3f */ | |
153 | "\206\207\210\211\212\000\000789-456+1" /* 0x40 - 0x4f */ | |
154 | "230\177\000\000\213\214\000\000\000\000\000\000\000\000\000\000" /* 0x50 - 0x5f */ | |
155 | "\r\000/"; /* 0x60 - 0x6f */ | |
156 | static int sysrq_down; | |
d2be8ee5 | 157 | static int sysrq_alt_use; |
1da177e4 LT |
158 | #endif |
159 | static int sysrq_alt; | |
160 | ||
161 | /* | |
162 | * Translation of scancodes to keycodes. We set them on only the first attached | |
163 | * keyboard - for per-keyboard setting, /dev/input/event is more useful. | |
164 | */ | |
165 | int getkeycode(unsigned int scancode) | |
166 | { | |
fe1e8604 | 167 | struct list_head *node; |
1da177e4 LT |
168 | struct input_dev *dev = NULL; |
169 | ||
fe1e8604 DT |
170 | list_for_each(node, &kbd_handler.h_list) { |
171 | struct input_handle *handle = to_handle_h(node); | |
172 | if (handle->dev->keycodesize) { | |
173 | dev = handle->dev; | |
1da177e4 LT |
174 | break; |
175 | } | |
176 | } | |
177 | ||
178 | if (!dev) | |
179 | return -ENODEV; | |
180 | ||
181 | if (scancode >= dev->keycodemax) | |
182 | return -EINVAL; | |
183 | ||
184 | return INPUT_KEYCODE(dev, scancode); | |
185 | } | |
186 | ||
187 | int setkeycode(unsigned int scancode, unsigned int keycode) | |
188 | { | |
fe1e8604 | 189 | struct list_head *node; |
1da177e4 LT |
190 | struct input_dev *dev = NULL; |
191 | unsigned int i, oldkey; | |
192 | ||
fe1e8604 | 193 | list_for_each(node, &kbd_handler.h_list) { |
1da177e4 | 194 | struct input_handle *handle = to_handle_h(node); |
fe1e8604 DT |
195 | if (handle->dev->keycodesize) { |
196 | dev = handle->dev; | |
197 | break; | |
1da177e4 LT |
198 | } |
199 | } | |
200 | ||
201 | if (!dev) | |
202 | return -ENODEV; | |
203 | ||
204 | if (scancode >= dev->keycodemax) | |
205 | return -EINVAL; | |
1da177e4 LT |
206 | if (keycode < 0 || keycode > KEY_MAX) |
207 | return -EINVAL; | |
4cee9956 | 208 | if (dev->keycodesize < sizeof(keycode) && (keycode >> (dev->keycodesize * 8))) |
5ac7ba3f | 209 | return -EINVAL; |
1da177e4 LT |
210 | |
211 | oldkey = SET_INPUT_KEYCODE(dev, scancode, keycode); | |
212 | ||
213 | clear_bit(oldkey, dev->keybit); | |
214 | set_bit(keycode, dev->keybit); | |
215 | ||
216 | for (i = 0; i < dev->keycodemax; i++) | |
217 | if (INPUT_KEYCODE(dev,i) == oldkey) | |
218 | set_bit(oldkey, dev->keybit); | |
219 | ||
220 | return 0; | |
221 | } | |
222 | ||
223 | /* | |
fe1e8604 | 224 | * Making beeps and bells. |
1da177e4 LT |
225 | */ |
226 | static void kd_nosound(unsigned long ignored) | |
227 | { | |
fe1e8604 | 228 | struct list_head *node; |
1da177e4 | 229 | |
0e739d28 | 230 | list_for_each(node, &kbd_handler.h_list) { |
1da177e4 LT |
231 | struct input_handle *handle = to_handle_h(node); |
232 | if (test_bit(EV_SND, handle->dev->evbit)) { | |
233 | if (test_bit(SND_TONE, handle->dev->sndbit)) | |
0e739d28 | 234 | input_inject_event(handle, EV_SND, SND_TONE, 0); |
1da177e4 | 235 | if (test_bit(SND_BELL, handle->dev->sndbit)) |
0e739d28 | 236 | input_inject_event(handle, EV_SND, SND_BELL, 0); |
1da177e4 LT |
237 | } |
238 | } | |
239 | } | |
240 | ||
8d06afab | 241 | static DEFINE_TIMER(kd_mksound_timer, kd_nosound, 0, 0); |
1da177e4 LT |
242 | |
243 | void kd_mksound(unsigned int hz, unsigned int ticks) | |
244 | { | |
fe1e8604 | 245 | struct list_head *node; |
1da177e4 LT |
246 | |
247 | del_timer(&kd_mksound_timer); | |
248 | ||
249 | if (hz) { | |
fe1e8604 | 250 | list_for_each_prev(node, &kbd_handler.h_list) { |
1da177e4 LT |
251 | struct input_handle *handle = to_handle_h(node); |
252 | if (test_bit(EV_SND, handle->dev->evbit)) { | |
253 | if (test_bit(SND_TONE, handle->dev->sndbit)) { | |
0e739d28 | 254 | input_inject_event(handle, EV_SND, SND_TONE, hz); |
1da177e4 LT |
255 | break; |
256 | } | |
257 | if (test_bit(SND_BELL, handle->dev->sndbit)) { | |
0e739d28 | 258 | input_inject_event(handle, EV_SND, SND_BELL, 1); |
1da177e4 LT |
259 | break; |
260 | } | |
261 | } | |
262 | } | |
263 | if (ticks) | |
264 | mod_timer(&kd_mksound_timer, jiffies + ticks); | |
265 | } else | |
266 | kd_nosound(0); | |
267 | } | |
268 | ||
269 | /* | |
270 | * Setting the keyboard rate. | |
271 | */ | |
272 | ||
273 | int kbd_rate(struct kbd_repeat *rep) | |
274 | { | |
275 | struct list_head *node; | |
276 | unsigned int d = 0; | |
277 | unsigned int p = 0; | |
278 | ||
0e739d28 | 279 | list_for_each(node, &kbd_handler.h_list) { |
1da177e4 LT |
280 | struct input_handle *handle = to_handle_h(node); |
281 | struct input_dev *dev = handle->dev; | |
282 | ||
283 | if (test_bit(EV_REP, dev->evbit)) { | |
284 | if (rep->delay > 0) | |
0e739d28 | 285 | input_inject_event(handle, EV_REP, REP_DELAY, rep->delay); |
1da177e4 | 286 | if (rep->period > 0) |
0e739d28 | 287 | input_inject_event(handle, EV_REP, REP_PERIOD, rep->period); |
1da177e4 LT |
288 | d = dev->rep[REP_DELAY]; |
289 | p = dev->rep[REP_PERIOD]; | |
290 | } | |
291 | } | |
292 | rep->delay = d; | |
293 | rep->period = p; | |
294 | return 0; | |
295 | } | |
296 | ||
297 | /* | |
298 | * Helper Functions. | |
299 | */ | |
300 | static void put_queue(struct vc_data *vc, int ch) | |
301 | { | |
302 | struct tty_struct *tty = vc->vc_tty; | |
303 | ||
304 | if (tty) { | |
305 | tty_insert_flip_char(tty, ch, 0); | |
306 | con_schedule_flip(tty); | |
307 | } | |
308 | } | |
309 | ||
310 | static void puts_queue(struct vc_data *vc, char *cp) | |
311 | { | |
312 | struct tty_struct *tty = vc->vc_tty; | |
313 | ||
314 | if (!tty) | |
315 | return; | |
316 | ||
317 | while (*cp) { | |
318 | tty_insert_flip_char(tty, *cp, 0); | |
319 | cp++; | |
320 | } | |
321 | con_schedule_flip(tty); | |
322 | } | |
323 | ||
324 | static void applkey(struct vc_data *vc, int key, char mode) | |
325 | { | |
326 | static char buf[] = { 0x1b, 'O', 0x00, 0x00 }; | |
327 | ||
328 | buf[1] = (mode ? 'O' : '['); | |
329 | buf[2] = key; | |
330 | puts_queue(vc, buf); | |
331 | } | |
332 | ||
333 | /* | |
334 | * Many other routines do put_queue, but I think either | |
335 | * they produce ASCII, or they produce some user-assigned | |
336 | * string, and in both cases we might assume that it is | |
337 | * in utf-8 already. UTF-8 is defined for words of up to 31 bits, | |
338 | * but we need only 16 bits here | |
339 | */ | |
340 | static void to_utf8(struct vc_data *vc, ushort c) | |
341 | { | |
342 | if (c < 0x80) | |
343 | /* 0******* */ | |
344 | put_queue(vc, c); | |
fe1e8604 | 345 | else if (c < 0x800) { |
1da177e4 | 346 | /* 110***** 10****** */ |
fe1e8604 | 347 | put_queue(vc, 0xc0 | (c >> 6)); |
1da177e4 | 348 | put_queue(vc, 0x80 | (c & 0x3f)); |
fe1e8604 | 349 | } else { |
1da177e4 LT |
350 | /* 1110**** 10****** 10****** */ |
351 | put_queue(vc, 0xe0 | (c >> 12)); | |
352 | put_queue(vc, 0x80 | ((c >> 6) & 0x3f)); | |
353 | put_queue(vc, 0x80 | (c & 0x3f)); | |
fe1e8604 | 354 | } |
1da177e4 LT |
355 | } |
356 | ||
fe1e8604 | 357 | /* |
1da177e4 LT |
358 | * Called after returning from RAW mode or when changing consoles - recompute |
359 | * shift_down[] and shift_state from key_down[] maybe called when keymap is | |
360 | * undefined, so that shiftkey release is seen | |
361 | */ | |
362 | void compute_shiftstate(void) | |
363 | { | |
364 | unsigned int i, j, k, sym, val; | |
365 | ||
366 | shift_state = 0; | |
367 | memset(shift_down, 0, sizeof(shift_down)); | |
fe1e8604 | 368 | |
1da177e4 LT |
369 | for (i = 0; i < ARRAY_SIZE(key_down); i++) { |
370 | ||
371 | if (!key_down[i]) | |
372 | continue; | |
373 | ||
374 | k = i * BITS_PER_LONG; | |
375 | ||
376 | for (j = 0; j < BITS_PER_LONG; j++, k++) { | |
377 | ||
378 | if (!test_bit(k, key_down)) | |
379 | continue; | |
380 | ||
381 | sym = U(key_maps[0][k]); | |
382 | if (KTYP(sym) != KT_SHIFT && KTYP(sym) != KT_SLOCK) | |
383 | continue; | |
384 | ||
385 | val = KVAL(sym); | |
386 | if (val == KVAL(K_CAPSSHIFT)) | |
387 | val = KVAL(K_SHIFT); | |
388 | ||
389 | shift_down[val]++; | |
390 | shift_state |= (1 << val); | |
391 | } | |
392 | } | |
393 | } | |
394 | ||
395 | /* | |
396 | * We have a combining character DIACR here, followed by the character CH. | |
397 | * If the combination occurs in the table, return the corresponding value. | |
398 | * Otherwise, if CH is a space or equals DIACR, return DIACR. | |
399 | * Otherwise, conclude that DIACR was not combining after all, | |
400 | * queue it and return CH. | |
401 | */ | |
b9ec4e10 | 402 | static unsigned int handle_diacr(struct vc_data *vc, unsigned int ch) |
1da177e4 | 403 | { |
b9ec4e10 | 404 | unsigned int d = diacr; |
1da177e4 LT |
405 | unsigned int i; |
406 | ||
407 | diacr = 0; | |
408 | ||
b9ec4e10 ST |
409 | if ((d & ~0xff) == BRL_UC_ROW) { |
410 | if ((ch & ~0xff) == BRL_UC_ROW) | |
411 | return d | ch; | |
412 | } else { | |
413 | for (i = 0; i < accent_table_size; i++) | |
414 | if (accent_table[i].diacr == d && accent_table[i].base == ch) | |
415 | return accent_table[i].result; | |
1da177e4 LT |
416 | } |
417 | ||
b9ec4e10 | 418 | if (ch == ' ' || ch == (BRL_UC_ROW|0) || ch == d) |
1da177e4 LT |
419 | return d; |
420 | ||
b9ec4e10 ST |
421 | if (kbd->kbdmode == VC_UNICODE) |
422 | to_utf8(vc, d); | |
423 | else if (d < 0x100) | |
424 | put_queue(vc, d); | |
425 | ||
1da177e4 LT |
426 | return ch; |
427 | } | |
428 | ||
429 | /* | |
430 | * Special function handlers | |
431 | */ | |
7d12e780 | 432 | static void fn_enter(struct vc_data *vc) |
1da177e4 LT |
433 | { |
434 | if (diacr) { | |
b9ec4e10 ST |
435 | if (kbd->kbdmode == VC_UNICODE) |
436 | to_utf8(vc, diacr); | |
437 | else if (diacr < 0x100) | |
438 | put_queue(vc, diacr); | |
1da177e4 LT |
439 | diacr = 0; |
440 | } | |
441 | put_queue(vc, 13); | |
442 | if (vc_kbd_mode(kbd, VC_CRLF)) | |
443 | put_queue(vc, 10); | |
444 | } | |
445 | ||
7d12e780 | 446 | static void fn_caps_toggle(struct vc_data *vc) |
1da177e4 LT |
447 | { |
448 | if (rep) | |
449 | return; | |
450 | chg_vc_kbd_led(kbd, VC_CAPSLOCK); | |
451 | } | |
452 | ||
7d12e780 | 453 | static void fn_caps_on(struct vc_data *vc) |
1da177e4 LT |
454 | { |
455 | if (rep) | |
456 | return; | |
457 | set_vc_kbd_led(kbd, VC_CAPSLOCK); | |
458 | } | |
459 | ||
7d12e780 | 460 | static void fn_show_ptregs(struct vc_data *vc) |
1da177e4 | 461 | { |
7d12e780 | 462 | struct pt_regs *regs = get_irq_regs(); |
1da177e4 LT |
463 | if (regs) |
464 | show_regs(regs); | |
465 | } | |
466 | ||
7d12e780 | 467 | static void fn_hold(struct vc_data *vc) |
1da177e4 LT |
468 | { |
469 | struct tty_struct *tty = vc->vc_tty; | |
470 | ||
471 | if (rep || !tty) | |
472 | return; | |
473 | ||
474 | /* | |
475 | * Note: SCROLLOCK will be set (cleared) by stop_tty (start_tty); | |
476 | * these routines are also activated by ^S/^Q. | |
477 | * (And SCROLLOCK can also be set by the ioctl KDSKBLED.) | |
478 | */ | |
479 | if (tty->stopped) | |
480 | start_tty(tty); | |
481 | else | |
482 | stop_tty(tty); | |
483 | } | |
484 | ||
7d12e780 | 485 | static void fn_num(struct vc_data *vc) |
1da177e4 LT |
486 | { |
487 | if (vc_kbd_mode(kbd,VC_APPLIC)) | |
488 | applkey(vc, 'P', 1); | |
489 | else | |
7d12e780 | 490 | fn_bare_num(vc); |
1da177e4 LT |
491 | } |
492 | ||
493 | /* | |
494 | * Bind this to Shift-NumLock if you work in application keypad mode | |
495 | * but want to be able to change the NumLock flag. | |
496 | * Bind this to NumLock if you prefer that the NumLock key always | |
497 | * changes the NumLock flag. | |
498 | */ | |
7d12e780 | 499 | static void fn_bare_num(struct vc_data *vc) |
1da177e4 LT |
500 | { |
501 | if (!rep) | |
502 | chg_vc_kbd_led(kbd, VC_NUMLOCK); | |
503 | } | |
504 | ||
7d12e780 | 505 | static void fn_lastcons(struct vc_data *vc) |
1da177e4 LT |
506 | { |
507 | /* switch to the last used console, ChN */ | |
508 | set_console(last_console); | |
509 | } | |
510 | ||
7d12e780 | 511 | static void fn_dec_console(struct vc_data *vc) |
1da177e4 LT |
512 | { |
513 | int i, cur = fg_console; | |
514 | ||
515 | /* Currently switching? Queue this next switch relative to that. */ | |
516 | if (want_console != -1) | |
517 | cur = want_console; | |
518 | ||
fe1e8604 | 519 | for (i = cur - 1; i != cur; i--) { |
1da177e4 | 520 | if (i == -1) |
fe1e8604 | 521 | i = MAX_NR_CONSOLES - 1; |
1da177e4 LT |
522 | if (vc_cons_allocated(i)) |
523 | break; | |
524 | } | |
525 | set_console(i); | |
526 | } | |
527 | ||
7d12e780 | 528 | static void fn_inc_console(struct vc_data *vc) |
1da177e4 LT |
529 | { |
530 | int i, cur = fg_console; | |
531 | ||
532 | /* Currently switching? Queue this next switch relative to that. */ | |
533 | if (want_console != -1) | |
534 | cur = want_console; | |
535 | ||
536 | for (i = cur+1; i != cur; i++) { | |
537 | if (i == MAX_NR_CONSOLES) | |
538 | i = 0; | |
539 | if (vc_cons_allocated(i)) | |
540 | break; | |
541 | } | |
542 | set_console(i); | |
543 | } | |
544 | ||
7d12e780 | 545 | static void fn_send_intr(struct vc_data *vc) |
1da177e4 LT |
546 | { |
547 | struct tty_struct *tty = vc->vc_tty; | |
548 | ||
549 | if (!tty) | |
550 | return; | |
551 | tty_insert_flip_char(tty, 0, TTY_BREAK); | |
552 | con_schedule_flip(tty); | |
553 | } | |
554 | ||
7d12e780 | 555 | static void fn_scroll_forw(struct vc_data *vc) |
1da177e4 LT |
556 | { |
557 | scrollfront(vc, 0); | |
558 | } | |
559 | ||
7d12e780 | 560 | static void fn_scroll_back(struct vc_data *vc) |
1da177e4 LT |
561 | { |
562 | scrollback(vc, 0); | |
563 | } | |
564 | ||
7d12e780 | 565 | static void fn_show_mem(struct vc_data *vc) |
1da177e4 LT |
566 | { |
567 | show_mem(); | |
568 | } | |
569 | ||
7d12e780 | 570 | static void fn_show_state(struct vc_data *vc) |
1da177e4 LT |
571 | { |
572 | show_state(); | |
573 | } | |
574 | ||
7d12e780 | 575 | static void fn_boot_it(struct vc_data *vc) |
1da177e4 LT |
576 | { |
577 | ctrl_alt_del(); | |
578 | } | |
579 | ||
7d12e780 | 580 | static void fn_compose(struct vc_data *vc) |
1da177e4 LT |
581 | { |
582 | dead_key_next = 1; | |
583 | } | |
584 | ||
7d12e780 | 585 | static void fn_spawn_con(struct vc_data *vc) |
1da177e4 | 586 | { |
81af8d67 EB |
587 | spin_lock(&vt_spawn_con.lock); |
588 | if (vt_spawn_con.pid) | |
589 | if (kill_pid(vt_spawn_con.pid, vt_spawn_con.sig, 1)) { | |
590 | put_pid(vt_spawn_con.pid); | |
591 | vt_spawn_con.pid = NULL; | |
592 | } | |
593 | spin_unlock(&vt_spawn_con.lock); | |
1da177e4 LT |
594 | } |
595 | ||
7d12e780 | 596 | static void fn_SAK(struct vc_data *vc) |
1da177e4 | 597 | { |
8b6312f4 | 598 | struct work_struct *SAK_work = &vc_cons[fg_console].SAK_work; |
8b6312f4 | 599 | schedule_work(SAK_work); |
1da177e4 LT |
600 | } |
601 | ||
7d12e780 | 602 | static void fn_null(struct vc_data *vc) |
1da177e4 LT |
603 | { |
604 | compute_shiftstate(); | |
605 | } | |
606 | ||
607 | /* | |
608 | * Special key handlers | |
609 | */ | |
7d12e780 | 610 | static void k_ignore(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
611 | { |
612 | } | |
613 | ||
7d12e780 | 614 | static void k_spec(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
615 | { |
616 | if (up_flag) | |
617 | return; | |
618 | if (value >= ARRAY_SIZE(fn_handler)) | |
619 | return; | |
fe1e8604 DT |
620 | if ((kbd->kbdmode == VC_RAW || |
621 | kbd->kbdmode == VC_MEDIUMRAW) && | |
1da177e4 LT |
622 | value != KVAL(K_SAK)) |
623 | return; /* SAK is allowed even in raw mode */ | |
7d12e780 | 624 | fn_handler[value](vc); |
1da177e4 LT |
625 | } |
626 | ||
7d12e780 | 627 | static void k_lowercase(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
628 | { |
629 | printk(KERN_ERR "keyboard.c: k_lowercase was called - impossible\n"); | |
630 | } | |
631 | ||
7d12e780 | 632 | static void k_unicode(struct vc_data *vc, unsigned int value, char up_flag) |
1da177e4 LT |
633 | { |
634 | if (up_flag) | |
635 | return; /* no action, if this is a key release */ | |
636 | ||
637 | if (diacr) | |
638 | value = handle_diacr(vc, value); | |
639 | ||
640 | if (dead_key_next) { | |
641 | dead_key_next = 0; | |
642 | diacr = value; | |
643 | return; | |
644 | } | |
b9ec4e10 ST |
645 | if (kbd->kbdmode == VC_UNICODE) |
646 | to_utf8(vc, value); | |
647 | else if (value < 0x100) | |
648 | put_queue(vc, value); | |
1da177e4 LT |
649 | } |
650 | ||
651 | /* | |
652 | * Handle dead key. Note that we now may have several | |
653 | * dead keys modifying the same character. Very useful | |
654 | * for Vietnamese. | |
655 | */ | |
7d12e780 | 656 | static void k_deadunicode(struct vc_data *vc, unsigned int value, char up_flag) |
1da177e4 LT |
657 | { |
658 | if (up_flag) | |
659 | return; | |
660 | diacr = (diacr ? handle_diacr(vc, value) : value); | |
661 | } | |
662 | ||
7d12e780 | 663 | static void k_self(struct vc_data *vc, unsigned char value, char up_flag) |
b9ec4e10 | 664 | { |
7d12e780 | 665 | k_unicode(vc, value, up_flag); |
b9ec4e10 ST |
666 | } |
667 | ||
7d12e780 | 668 | static void k_dead2(struct vc_data *vc, unsigned char value, char up_flag) |
b9ec4e10 | 669 | { |
7d12e780 | 670 | k_deadunicode(vc, value, up_flag); |
b9ec4e10 ST |
671 | } |
672 | ||
1da177e4 LT |
673 | /* |
674 | * Obsolete - for backwards compatibility only | |
675 | */ | |
7d12e780 | 676 | static void k_dead(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 677 | { |
0f5e560e | 678 | static const unsigned char ret_diacr[NR_DEAD] = {'`', '\'', '^', '~', '"', ',' }; |
1da177e4 | 679 | value = ret_diacr[value]; |
7d12e780 | 680 | k_deadunicode(vc, value, up_flag); |
1da177e4 LT |
681 | } |
682 | ||
7d12e780 | 683 | static void k_cons(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
684 | { |
685 | if (up_flag) | |
686 | return; | |
687 | set_console(value); | |
688 | } | |
689 | ||
7d12e780 | 690 | static void k_fn(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
691 | { |
692 | unsigned v; | |
693 | ||
694 | if (up_flag) | |
695 | return; | |
696 | v = value; | |
697 | if (v < ARRAY_SIZE(func_table)) { | |
698 | if (func_table[value]) | |
699 | puts_queue(vc, func_table[value]); | |
700 | } else | |
701 | printk(KERN_ERR "k_fn called with value=%d\n", value); | |
702 | } | |
703 | ||
7d12e780 | 704 | static void k_cur(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 705 | { |
e52b29c2 | 706 | static const char cur_chars[] = "BDCA"; |
1da177e4 LT |
707 | |
708 | if (up_flag) | |
709 | return; | |
710 | applkey(vc, cur_chars[value], vc_kbd_mode(kbd, VC_CKMODE)); | |
711 | } | |
712 | ||
7d12e780 | 713 | static void k_pad(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 714 | { |
0f5e560e AM |
715 | static const char pad_chars[] = "0123456789+-*/\015,.?()#"; |
716 | static const char app_map[] = "pqrstuvwxylSRQMnnmPQS"; | |
1da177e4 LT |
717 | |
718 | if (up_flag) | |
719 | return; /* no action, if this is a key release */ | |
720 | ||
721 | /* kludge... shift forces cursor/number keys */ | |
722 | if (vc_kbd_mode(kbd, VC_APPLIC) && !shift_down[KG_SHIFT]) { | |
723 | applkey(vc, app_map[value], 1); | |
724 | return; | |
725 | } | |
726 | ||
727 | if (!vc_kbd_led(kbd, VC_NUMLOCK)) | |
728 | switch (value) { | |
729 | case KVAL(K_PCOMMA): | |
730 | case KVAL(K_PDOT): | |
7d12e780 | 731 | k_fn(vc, KVAL(K_REMOVE), 0); |
1da177e4 LT |
732 | return; |
733 | case KVAL(K_P0): | |
7d12e780 | 734 | k_fn(vc, KVAL(K_INSERT), 0); |
1da177e4 LT |
735 | return; |
736 | case KVAL(K_P1): | |
7d12e780 | 737 | k_fn(vc, KVAL(K_SELECT), 0); |
1da177e4 LT |
738 | return; |
739 | case KVAL(K_P2): | |
7d12e780 | 740 | k_cur(vc, KVAL(K_DOWN), 0); |
1da177e4 LT |
741 | return; |
742 | case KVAL(K_P3): | |
7d12e780 | 743 | k_fn(vc, KVAL(K_PGDN), 0); |
1da177e4 LT |
744 | return; |
745 | case KVAL(K_P4): | |
7d12e780 | 746 | k_cur(vc, KVAL(K_LEFT), 0); |
1da177e4 LT |
747 | return; |
748 | case KVAL(K_P6): | |
7d12e780 | 749 | k_cur(vc, KVAL(K_RIGHT), 0); |
1da177e4 LT |
750 | return; |
751 | case KVAL(K_P7): | |
7d12e780 | 752 | k_fn(vc, KVAL(K_FIND), 0); |
1da177e4 LT |
753 | return; |
754 | case KVAL(K_P8): | |
7d12e780 | 755 | k_cur(vc, KVAL(K_UP), 0); |
1da177e4 LT |
756 | return; |
757 | case KVAL(K_P9): | |
7d12e780 | 758 | k_fn(vc, KVAL(K_PGUP), 0); |
1da177e4 LT |
759 | return; |
760 | case KVAL(K_P5): | |
761 | applkey(vc, 'G', vc_kbd_mode(kbd, VC_APPLIC)); | |
762 | return; | |
763 | } | |
764 | ||
765 | put_queue(vc, pad_chars[value]); | |
766 | if (value == KVAL(K_PENTER) && vc_kbd_mode(kbd, VC_CRLF)) | |
767 | put_queue(vc, 10); | |
768 | } | |
769 | ||
7d12e780 | 770 | static void k_shift(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
771 | { |
772 | int old_state = shift_state; | |
773 | ||
774 | if (rep) | |
775 | return; | |
776 | /* | |
777 | * Mimic typewriter: | |
778 | * a CapsShift key acts like Shift but undoes CapsLock | |
779 | */ | |
780 | if (value == KVAL(K_CAPSSHIFT)) { | |
781 | value = KVAL(K_SHIFT); | |
782 | if (!up_flag) | |
783 | clr_vc_kbd_led(kbd, VC_CAPSLOCK); | |
784 | } | |
785 | ||
786 | if (up_flag) { | |
787 | /* | |
788 | * handle the case that two shift or control | |
789 | * keys are depressed simultaneously | |
790 | */ | |
791 | if (shift_down[value]) | |
792 | shift_down[value]--; | |
793 | } else | |
794 | shift_down[value]++; | |
795 | ||
796 | if (shift_down[value]) | |
797 | shift_state |= (1 << value); | |
798 | else | |
799 | shift_state &= ~(1 << value); | |
800 | ||
801 | /* kludge */ | |
802 | if (up_flag && shift_state != old_state && npadch != -1) { | |
803 | if (kbd->kbdmode == VC_UNICODE) | |
804 | to_utf8(vc, npadch & 0xffff); | |
805 | else | |
806 | put_queue(vc, npadch & 0xff); | |
807 | npadch = -1; | |
808 | } | |
809 | } | |
810 | ||
7d12e780 | 811 | static void k_meta(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
812 | { |
813 | if (up_flag) | |
814 | return; | |
815 | ||
816 | if (vc_kbd_mode(kbd, VC_META)) { | |
817 | put_queue(vc, '\033'); | |
818 | put_queue(vc, value); | |
819 | } else | |
820 | put_queue(vc, value | 0x80); | |
821 | } | |
822 | ||
7d12e780 | 823 | static void k_ascii(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
824 | { |
825 | int base; | |
826 | ||
827 | if (up_flag) | |
828 | return; | |
829 | ||
830 | if (value < 10) { | |
831 | /* decimal input of code, while Alt depressed */ | |
832 | base = 10; | |
833 | } else { | |
834 | /* hexadecimal input of code, while AltGr depressed */ | |
835 | value -= 10; | |
836 | base = 16; | |
837 | } | |
838 | ||
839 | if (npadch == -1) | |
840 | npadch = value; | |
841 | else | |
842 | npadch = npadch * base + value; | |
843 | } | |
844 | ||
7d12e780 | 845 | static void k_lock(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
846 | { |
847 | if (up_flag || rep) | |
848 | return; | |
849 | chg_vc_kbd_lock(kbd, value); | |
850 | } | |
851 | ||
7d12e780 | 852 | static void k_slock(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 853 | { |
7d12e780 | 854 | k_shift(vc, value, up_flag); |
1da177e4 LT |
855 | if (up_flag || rep) |
856 | return; | |
857 | chg_vc_kbd_slock(kbd, value); | |
858 | /* try to make Alt, oops, AltGr and such work */ | |
859 | if (!key_maps[kbd->lockstate ^ kbd->slockstate]) { | |
860 | kbd->slockstate = 0; | |
861 | chg_vc_kbd_slock(kbd, value); | |
862 | } | |
863 | } | |
864 | ||
b9ec4e10 | 865 | /* by default, 300ms interval for combination release */ |
77426d72 ST |
866 | static unsigned brl_timeout = 300; |
867 | MODULE_PARM_DESC(brl_timeout, "Braille keys release delay in ms (0 for commit on first key release)"); | |
868 | module_param(brl_timeout, uint, 0644); | |
869 | ||
870 | static unsigned brl_nbchords = 1; | |
871 | MODULE_PARM_DESC(brl_nbchords, "Number of chords that produce a braille pattern (0 for dead chords)"); | |
872 | module_param(brl_nbchords, uint, 0644); | |
873 | ||
7d12e780 | 874 | static void k_brlcommit(struct vc_data *vc, unsigned int pattern, char up_flag) |
77426d72 ST |
875 | { |
876 | static unsigned long chords; | |
877 | static unsigned committed; | |
878 | ||
879 | if (!brl_nbchords) | |
7d12e780 | 880 | k_deadunicode(vc, BRL_UC_ROW | pattern, up_flag); |
77426d72 ST |
881 | else { |
882 | committed |= pattern; | |
883 | chords++; | |
884 | if (chords == brl_nbchords) { | |
7d12e780 | 885 | k_unicode(vc, BRL_UC_ROW | committed, up_flag); |
77426d72 ST |
886 | chords = 0; |
887 | committed = 0; | |
888 | } | |
889 | } | |
890 | } | |
891 | ||
7d12e780 | 892 | static void k_brl(struct vc_data *vc, unsigned char value, char up_flag) |
b9ec4e10 ST |
893 | { |
894 | static unsigned pressed,committing; | |
895 | static unsigned long releasestart; | |
896 | ||
897 | if (kbd->kbdmode != VC_UNICODE) { | |
898 | if (!up_flag) | |
899 | printk("keyboard mode must be unicode for braille patterns\n"); | |
900 | return; | |
901 | } | |
902 | ||
903 | if (!value) { | |
7d12e780 | 904 | k_unicode(vc, BRL_UC_ROW, up_flag); |
b9ec4e10 ST |
905 | return; |
906 | } | |
907 | ||
908 | if (value > 8) | |
909 | return; | |
910 | ||
b9ec4e10 ST |
911 | if (up_flag) { |
912 | if (brl_timeout) { | |
913 | if (!committing || | |
914 | jiffies - releasestart > (brl_timeout * HZ) / 1000) { | |
915 | committing = pressed; | |
916 | releasestart = jiffies; | |
917 | } | |
918 | pressed &= ~(1 << (value - 1)); | |
919 | if (!pressed) { | |
920 | if (committing) { | |
7d12e780 | 921 | k_brlcommit(vc, committing, 0); |
b9ec4e10 ST |
922 | committing = 0; |
923 | } | |
924 | } | |
925 | } else { | |
926 | if (committing) { | |
7d12e780 | 927 | k_brlcommit(vc, committing, 0); |
b9ec4e10 ST |
928 | committing = 0; |
929 | } | |
930 | pressed &= ~(1 << (value - 1)); | |
931 | } | |
932 | } else { | |
933 | pressed |= 1 << (value - 1); | |
934 | if (!brl_timeout) | |
935 | committing = pressed; | |
936 | } | |
937 | } | |
938 | ||
1da177e4 LT |
939 | /* |
940 | * The leds display either (i) the status of NumLock, CapsLock, ScrollLock, | |
941 | * or (ii) whatever pattern of lights people want to show using KDSETLED, | |
942 | * or (iii) specified bits of specified words in kernel memory. | |
943 | */ | |
944 | unsigned char getledstate(void) | |
945 | { | |
946 | return ledstate; | |
947 | } | |
948 | ||
949 | void setledstate(struct kbd_struct *kbd, unsigned int led) | |
950 | { | |
951 | if (!(led & ~7)) { | |
952 | ledioctl = led; | |
953 | kbd->ledmode = LED_SHOW_IOCTL; | |
954 | } else | |
955 | kbd->ledmode = LED_SHOW_FLAGS; | |
956 | set_leds(); | |
957 | } | |
958 | ||
959 | static inline unsigned char getleds(void) | |
960 | { | |
961 | struct kbd_struct *kbd = kbd_table + fg_console; | |
962 | unsigned char leds; | |
963 | int i; | |
964 | ||
965 | if (kbd->ledmode == LED_SHOW_IOCTL) | |
966 | return ledioctl; | |
967 | ||
968 | leds = kbd->ledflagstate; | |
969 | ||
970 | if (kbd->ledmode == LED_SHOW_MEM) { | |
971 | for (i = 0; i < 3; i++) | |
972 | if (ledptrs[i].valid) { | |
973 | if (*ledptrs[i].addr & ledptrs[i].mask) | |
974 | leds |= (1 << i); | |
975 | else | |
976 | leds &= ~(1 << i); | |
977 | } | |
978 | } | |
979 | return leds; | |
980 | } | |
981 | ||
982 | /* | |
983 | * This routine is the bottom half of the keyboard interrupt | |
984 | * routine, and runs with all interrupts enabled. It does | |
985 | * console changing, led setting and copy_to_cooked, which can | |
986 | * take a reasonably long time. | |
987 | * | |
988 | * Aside from timing (which isn't really that important for | |
989 | * keyboard interrupts as they happen often), using the software | |
990 | * interrupt routines for this thing allows us to easily mask | |
991 | * this when we don't want any of the above to happen. | |
992 | * This allows for easy and efficient race-condition prevention | |
0e739d28 | 993 | * for kbd_start => input_inject_event(dev, EV_LED, ...) => ... |
1da177e4 LT |
994 | */ |
995 | ||
996 | static void kbd_bh(unsigned long dummy) | |
997 | { | |
fe1e8604 | 998 | struct list_head *node; |
1da177e4 LT |
999 | unsigned char leds = getleds(); |
1000 | ||
1001 | if (leds != ledstate) { | |
fe1e8604 | 1002 | list_for_each(node, &kbd_handler.h_list) { |
0e739d28 DT |
1003 | struct input_handle *handle = to_handle_h(node); |
1004 | input_inject_event(handle, EV_LED, LED_SCROLLL, !!(leds & 0x01)); | |
1005 | input_inject_event(handle, EV_LED, LED_NUML, !!(leds & 0x02)); | |
1006 | input_inject_event(handle, EV_LED, LED_CAPSL, !!(leds & 0x04)); | |
1007 | input_inject_event(handle, EV_SYN, SYN_REPORT, 0); | |
1da177e4 LT |
1008 | } |
1009 | } | |
1010 | ||
1011 | ledstate = leds; | |
1012 | } | |
1013 | ||
1014 | DECLARE_TASKLET_DISABLED(keyboard_tasklet, kbd_bh, 0); | |
1015 | ||
1da177e4 | 1016 | #if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_ALPHA) ||\ |
0b57ee9e AB |
1017 | defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_SPARC) ||\ |
1018 | defined(CONFIG_PARISC) || defined(CONFIG_SUPERH) ||\ | |
1da177e4 LT |
1019 | (defined(CONFIG_ARM) && defined(CONFIG_KEYBOARD_ATKBD) && !defined(CONFIG_ARCH_RPC)) |
1020 | ||
1021 | #define HW_RAW(dev) (test_bit(EV_MSC, dev->evbit) && test_bit(MSC_RAW, dev->mscbit) &&\ | |
1022 | ((dev)->id.bustype == BUS_I8042) && ((dev)->id.vendor == 0x0001) && ((dev)->id.product == 0x0001)) | |
1023 | ||
0f5e560e | 1024 | static const unsigned short x86_keycodes[256] = |
1da177e4 LT |
1025 | { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, |
1026 | 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, | |
1027 | 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, | |
1028 | 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, | |
1029 | 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, | |
1030 | 80, 81, 82, 83, 84,118, 86, 87, 88,115,120,119,121,112,123, 92, | |
896cdc7b | 1031 | 284,285,309, 0,312, 91,327,328,329,331,333,335,336,337,338,339, |
1da177e4 LT |
1032 | 367,288,302,304,350, 89,334,326,267,126,268,269,125,347,348,349, |
1033 | 360,261,262,263,268,376,100,101,321,316,373,286,289,102,351,355, | |
1034 | 103,104,105,275,287,279,306,106,274,107,294,364,358,363,362,361, | |
1035 | 291,108,381,281,290,272,292,305,280, 99,112,257,258,359,113,114, | |
1036 | 264,117,271,374,379,265,266, 93, 94, 95, 85,259,375,260, 90,116, | |
1037 | 377,109,111,277,278,282,283,295,296,297,299,300,301,293,303,307, | |
1038 | 308,310,313,314,315,317,318,319,320,357,322,323,324,325,276,330, | |
1039 | 332,340,365,342,343,344,345,346,356,270,341,368,369,370,371,372 }; | |
1040 | ||
1041 | #ifdef CONFIG_MAC_EMUMOUSEBTN | |
1042 | extern int mac_hid_mouse_emulate_buttons(int, int, int); | |
1043 | #endif /* CONFIG_MAC_EMUMOUSEBTN */ | |
1044 | ||
0b57ee9e | 1045 | #ifdef CONFIG_SPARC |
1da177e4 LT |
1046 | static int sparc_l1_a_state = 0; |
1047 | extern void sun_do_break(void); | |
1048 | #endif | |
1049 | ||
fe1e8604 | 1050 | static int emulate_raw(struct vc_data *vc, unsigned int keycode, |
1da177e4 LT |
1051 | unsigned char up_flag) |
1052 | { | |
896cdc7b | 1053 | int code; |
1da177e4 LT |
1054 | |
1055 | switch (keycode) { | |
1056 | case KEY_PAUSE: | |
1057 | put_queue(vc, 0xe1); | |
1058 | put_queue(vc, 0x1d | up_flag); | |
1059 | put_queue(vc, 0x45 | up_flag); | |
896cdc7b DT |
1060 | break; |
1061 | ||
b9ab58dd | 1062 | case KEY_HANGEUL: |
0ae051a1 DT |
1063 | if (!up_flag) |
1064 | put_queue(vc, 0xf2); | |
896cdc7b DT |
1065 | break; |
1066 | ||
1da177e4 | 1067 | case KEY_HANJA: |
0ae051a1 DT |
1068 | if (!up_flag) |
1069 | put_queue(vc, 0xf1); | |
896cdc7b | 1070 | break; |
1da177e4 | 1071 | |
896cdc7b DT |
1072 | case KEY_SYSRQ: |
1073 | /* | |
1074 | * Real AT keyboards (that's what we're trying | |
1075 | * to emulate here emit 0xe0 0x2a 0xe0 0x37 when | |
1076 | * pressing PrtSc/SysRq alone, but simply 0x54 | |
1077 | * when pressing Alt+PrtSc/SysRq. | |
1078 | */ | |
1079 | if (sysrq_alt) { | |
1080 | put_queue(vc, 0x54 | up_flag); | |
1081 | } else { | |
1082 | put_queue(vc, 0xe0); | |
1083 | put_queue(vc, 0x2a | up_flag); | |
1084 | put_queue(vc, 0xe0); | |
1085 | put_queue(vc, 0x37 | up_flag); | |
1086 | } | |
1087 | break; | |
1088 | ||
1089 | default: | |
1090 | if (keycode > 255) | |
1091 | return -1; | |
1da177e4 | 1092 | |
896cdc7b DT |
1093 | code = x86_keycodes[keycode]; |
1094 | if (!code) | |
1095 | return -1; | |
1da177e4 | 1096 | |
896cdc7b DT |
1097 | if (code & 0x100) |
1098 | put_queue(vc, 0xe0); | |
1099 | put_queue(vc, (code & 0x7f) | up_flag); | |
1da177e4 | 1100 | |
896cdc7b | 1101 | break; |
1da177e4 LT |
1102 | } |
1103 | ||
1104 | return 0; | |
1105 | } | |
1106 | ||
1107 | #else | |
1108 | ||
1109 | #define HW_RAW(dev) 0 | |
1110 | ||
1111 | #warning "Cannot generate rawmode keyboard for your architecture yet." | |
1112 | ||
1113 | static int emulate_raw(struct vc_data *vc, unsigned int keycode, unsigned char up_flag) | |
1114 | { | |
1115 | if (keycode > 127) | |
1116 | return -1; | |
1117 | ||
1118 | put_queue(vc, keycode | up_flag); | |
1119 | return 0; | |
1120 | } | |
1121 | #endif | |
1122 | ||
1123 | static void kbd_rawcode(unsigned char data) | |
1124 | { | |
1125 | struct vc_data *vc = vc_cons[fg_console].d; | |
1126 | kbd = kbd_table + fg_console; | |
1127 | if (kbd->kbdmode == VC_RAW) | |
1128 | put_queue(vc, data); | |
1129 | } | |
1130 | ||
7d12e780 | 1131 | static void kbd_keycode(unsigned int keycode, int down, int hw_raw) |
1da177e4 LT |
1132 | { |
1133 | struct vc_data *vc = vc_cons[fg_console].d; | |
1134 | unsigned short keysym, *key_map; | |
1135 | unsigned char type, raw_mode; | |
1136 | struct tty_struct *tty; | |
1137 | int shift_final; | |
1138 | ||
1139 | tty = vc->vc_tty; | |
1140 | ||
1141 | if (tty && (!tty->driver_data)) { | |
1142 | /* No driver data? Strange. Okay we fix it then. */ | |
1143 | tty->driver_data = vc; | |
1144 | } | |
1145 | ||
1146 | kbd = kbd_table + fg_console; | |
1147 | ||
1148 | if (keycode == KEY_LEFTALT || keycode == KEY_RIGHTALT) | |
d2be8ee5 | 1149 | sysrq_alt = down ? keycode : 0; |
0b57ee9e | 1150 | #ifdef CONFIG_SPARC |
1da177e4 LT |
1151 | if (keycode == KEY_STOP) |
1152 | sparc_l1_a_state = down; | |
1153 | #endif | |
1154 | ||
1155 | rep = (down == 2); | |
1156 | ||
1157 | #ifdef CONFIG_MAC_EMUMOUSEBTN | |
1158 | if (mac_hid_mouse_emulate_buttons(1, keycode, down)) | |
1159 | return; | |
1160 | #endif /* CONFIG_MAC_EMUMOUSEBTN */ | |
1161 | ||
1162 | if ((raw_mode = (kbd->kbdmode == VC_RAW)) && !hw_raw) | |
1163 | if (emulate_raw(vc, keycode, !down << 7)) | |
1164 | if (keycode < BTN_MISC) | |
1165 | printk(KERN_WARNING "keyboard.c: can't emulate rawmode for keycode %d\n", keycode); | |
1166 | ||
1167 | #ifdef CONFIG_MAGIC_SYSRQ /* Handle the SysRq Hack */ | |
1168 | if (keycode == KEY_SYSRQ && (sysrq_down || (down == 1 && sysrq_alt))) { | |
d2be8ee5 FR |
1169 | if (!sysrq_down) { |
1170 | sysrq_down = down; | |
1171 | sysrq_alt_use = sysrq_alt; | |
1172 | } | |
1da177e4 LT |
1173 | return; |
1174 | } | |
d2be8ee5 FR |
1175 | if (sysrq_down && !down && keycode == sysrq_alt_use) |
1176 | sysrq_down = 0; | |
1da177e4 | 1177 | if (sysrq_down && down && !rep) { |
7d12e780 | 1178 | handle_sysrq(kbd_sysrq_xlate[keycode], tty); |
1da177e4 LT |
1179 | return; |
1180 | } | |
1181 | #endif | |
0b57ee9e | 1182 | #ifdef CONFIG_SPARC |
1da177e4 LT |
1183 | if (keycode == KEY_A && sparc_l1_a_state) { |
1184 | sparc_l1_a_state = 0; | |
1185 | sun_do_break(); | |
1186 | } | |
1187 | #endif | |
1188 | ||
1189 | if (kbd->kbdmode == VC_MEDIUMRAW) { | |
1190 | /* | |
1191 | * This is extended medium raw mode, with keys above 127 | |
1192 | * encoded as 0, high 7 bits, low 7 bits, with the 0 bearing | |
1193 | * the 'up' flag if needed. 0 is reserved, so this shouldn't | |
1194 | * interfere with anything else. The two bytes after 0 will | |
1195 | * always have the up flag set not to interfere with older | |
1196 | * applications. This allows for 16384 different keycodes, | |
1197 | * which should be enough. | |
1198 | */ | |
1199 | if (keycode < 128) { | |
1200 | put_queue(vc, keycode | (!down << 7)); | |
1201 | } else { | |
1202 | put_queue(vc, !down << 7); | |
1203 | put_queue(vc, (keycode >> 7) | 0x80); | |
1204 | put_queue(vc, keycode | 0x80); | |
1205 | } | |
1206 | raw_mode = 1; | |
1207 | } | |
1208 | ||
1209 | if (down) | |
1210 | set_bit(keycode, key_down); | |
1211 | else | |
1212 | clear_bit(keycode, key_down); | |
1213 | ||
fe1e8604 DT |
1214 | if (rep && |
1215 | (!vc_kbd_mode(kbd, VC_REPEAT) || | |
1216 | (tty && !L_ECHO(tty) && tty->driver->chars_in_buffer(tty)))) { | |
1da177e4 LT |
1217 | /* |
1218 | * Don't repeat a key if the input buffers are not empty and the | |
fe1e8604 | 1219 | * characters get aren't echoed locally. This makes key repeat |
1da177e4 LT |
1220 | * usable with slow applications and under heavy loads. |
1221 | */ | |
1222 | return; | |
1223 | } | |
1224 | ||
1225 | shift_final = (shift_state | kbd->slockstate) ^ kbd->lockstate; | |
1226 | key_map = key_maps[shift_final]; | |
1227 | ||
1228 | if (!key_map) { | |
1229 | compute_shiftstate(); | |
1230 | kbd->slockstate = 0; | |
1231 | return; | |
1232 | } | |
1233 | ||
1234 | if (keycode > NR_KEYS) | |
b9ec4e10 ST |
1235 | if (keycode >= KEY_BRL_DOT1 && keycode <= KEY_BRL_DOT8) |
1236 | keysym = K(KT_BRL, keycode - KEY_BRL_DOT1 + 1); | |
1237 | else | |
1238 | return; | |
1239 | else | |
1240 | keysym = key_map[keycode]; | |
1da177e4 | 1241 | |
1da177e4 LT |
1242 | type = KTYP(keysym); |
1243 | ||
1244 | if (type < 0xf0) { | |
fe1e8604 DT |
1245 | if (down && !raw_mode) |
1246 | to_utf8(vc, keysym); | |
1da177e4 LT |
1247 | return; |
1248 | } | |
1249 | ||
1250 | type -= 0xf0; | |
1251 | ||
1252 | if (raw_mode && type != KT_SPEC && type != KT_SHIFT) | |
1253 | return; | |
1254 | ||
1255 | if (type == KT_LETTER) { | |
1256 | type = KT_LATIN; | |
1257 | if (vc_kbd_led(kbd, VC_CAPSLOCK)) { | |
1258 | key_map = key_maps[shift_final ^ (1 << KG_SHIFT)]; | |
1259 | if (key_map) | |
1260 | keysym = key_map[keycode]; | |
1261 | } | |
1262 | } | |
1263 | ||
7d12e780 | 1264 | (*k_handler[type])(vc, keysym & 0xff, !down); |
1da177e4 LT |
1265 | |
1266 | if (type != KT_SLOCK) | |
1267 | kbd->slockstate = 0; | |
1268 | } | |
1269 | ||
fe1e8604 | 1270 | static void kbd_event(struct input_handle *handle, unsigned int event_type, |
1da177e4 LT |
1271 | unsigned int event_code, int value) |
1272 | { | |
1273 | if (event_type == EV_MSC && event_code == MSC_RAW && HW_RAW(handle->dev)) | |
1274 | kbd_rawcode(value); | |
1275 | if (event_type == EV_KEY) | |
7d12e780 | 1276 | kbd_keycode(event_code, value, HW_RAW(handle->dev)); |
1da177e4 LT |
1277 | tasklet_schedule(&keyboard_tasklet); |
1278 | do_poke_blanked_console = 1; | |
1279 | schedule_console_callback(); | |
1280 | } | |
1281 | ||
1da177e4 LT |
1282 | /* |
1283 | * When a keyboard (or other input device) is found, the kbd_connect | |
1284 | * function is called. The function then looks at the device, and if it | |
1285 | * likes it, it can open it and get events from it. In this (kbd_connect) | |
1286 | * function, we should decide which VT to bind that keyboard to initially. | |
1287 | */ | |
fe1e8604 | 1288 | static struct input_handle *kbd_connect(struct input_handler *handler, |
1da177e4 | 1289 | struct input_dev *dev, |
66e66118 | 1290 | const struct input_device_id *id) |
1da177e4 LT |
1291 | { |
1292 | struct input_handle *handle; | |
1293 | int i; | |
1294 | ||
1295 | for (i = KEY_RESERVED; i < BTN_MISC; i++) | |
fe1e8604 DT |
1296 | if (test_bit(i, dev->keybit)) |
1297 | break; | |
1da177e4 | 1298 | |
fe1e8604 | 1299 | if (i == BTN_MISC && !test_bit(EV_SND, dev->evbit)) |
1da177e4 LT |
1300 | return NULL; |
1301 | ||
22479e1c DT |
1302 | handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL); |
1303 | if (!handle) | |
1da177e4 | 1304 | return NULL; |
1da177e4 LT |
1305 | |
1306 | handle->dev = dev; | |
1307 | handle->handler = handler; | |
fe1e8604 | 1308 | handle->name = "kbd"; |
1da177e4 LT |
1309 | |
1310 | input_open_device(handle); | |
1da177e4 LT |
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 | ||
c7e8dc6e DT |
1321 | /* |
1322 | * Start keyboard handler on the new keyboard by refreshing LED state to | |
1323 | * match the rest of the system. | |
1324 | */ | |
1325 | static void kbd_start(struct input_handle *handle) | |
1326 | { | |
1327 | unsigned char leds = ledstate; | |
1328 | ||
1329 | tasklet_disable(&keyboard_tasklet); | |
1330 | if (leds != 0xff) { | |
0e739d28 DT |
1331 | input_inject_event(handle, EV_LED, LED_SCROLLL, !!(leds & 0x01)); |
1332 | input_inject_event(handle, EV_LED, LED_NUML, !!(leds & 0x02)); | |
1333 | input_inject_event(handle, EV_LED, LED_CAPSL, !!(leds & 0x04)); | |
1334 | input_inject_event(handle, EV_SYN, SYN_REPORT, 0); | |
c7e8dc6e DT |
1335 | } |
1336 | tasklet_enable(&keyboard_tasklet); | |
1337 | } | |
1338 | ||
66e66118 | 1339 | static const struct input_device_id kbd_ids[] = { |
1da177e4 LT |
1340 | { |
1341 | .flags = INPUT_DEVICE_ID_MATCH_EVBIT, | |
1342 | .evbit = { BIT(EV_KEY) }, | |
1343 | }, | |
fe1e8604 | 1344 | |
1da177e4 LT |
1345 | { |
1346 | .flags = INPUT_DEVICE_ID_MATCH_EVBIT, | |
1347 | .evbit = { BIT(EV_SND) }, | |
fe1e8604 | 1348 | }, |
1da177e4 LT |
1349 | |
1350 | { }, /* Terminating entry */ | |
1351 | }; | |
1352 | ||
1353 | MODULE_DEVICE_TABLE(input, kbd_ids); | |
1354 | ||
1355 | static struct input_handler kbd_handler = { | |
1356 | .event = kbd_event, | |
1357 | .connect = kbd_connect, | |
1358 | .disconnect = kbd_disconnect, | |
c7e8dc6e | 1359 | .start = kbd_start, |
1da177e4 LT |
1360 | .name = "kbd", |
1361 | .id_table = kbd_ids, | |
1362 | }; | |
1363 | ||
1364 | int __init kbd_init(void) | |
1365 | { | |
1366 | int i; | |
4263cf0f | 1367 | int error; |
1da177e4 | 1368 | |
2b192908 DT |
1369 | for (i = 0; i < MAX_NR_CONSOLES; i++) { |
1370 | kbd_table[i].ledflagstate = KBD_DEFLEDS; | |
1371 | kbd_table[i].default_ledflagstate = KBD_DEFLEDS; | |
1372 | kbd_table[i].ledmode = LED_SHOW_FLAGS; | |
1373 | kbd_table[i].lockstate = KBD_DEFLOCK; | |
1374 | kbd_table[i].slockstate = 0; | |
1375 | kbd_table[i].modeflags = KBD_DEFMODE; | |
1376 | kbd_table[i].kbdmode = VC_XLATE; | |
1377 | } | |
1da177e4 | 1378 | |
4263cf0f DT |
1379 | error = input_register_handler(&kbd_handler); |
1380 | if (error) | |
1381 | return error; | |
1da177e4 LT |
1382 | |
1383 | tasklet_enable(&keyboard_tasklet); | |
1384 | tasklet_schedule(&keyboard_tasklet); | |
1385 | ||
1386 | return 0; | |
1387 | } |