]>
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 | 43 | |
1da177e4 LT |
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, |
7d12e780 | 80 | char up_flag); |
1da177e4 LT |
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 | 90 | |
7d12e780 | 91 | typedef void (fn_handler_fn)(struct vc_data *vc); |
1da177e4 LT |
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; | |
1da177e4 | 110 | |
81af8d67 | 111 | struct vt_spawn_console vt_spawn_con = { |
ccc94256 | 112 | .lock = __SPIN_LOCK_UNLOCKED(vt_spawn_con.lock), |
81af8d67 EB |
113 | .pid = NULL, |
114 | .sig = 0, | |
115 | }; | |
1da177e4 LT |
116 | |
117 | /* | |
118 | * Variables exported for vt.c | |
119 | */ | |
120 | ||
121 | int shift_state = 0; | |
122 | ||
123 | /* | |
124 | * Internal Data. | |
125 | */ | |
126 | ||
127 | static struct input_handler kbd_handler; | |
128 | static unsigned long key_down[NBITS(KEY_MAX)]; /* keyboard key bitmap */ | |
129 | static unsigned char shift_down[NR_SHIFT]; /* shift state counters.. */ | |
130 | static int dead_key_next; | |
131 | static int npadch = -1; /* -1 or number assembled on pad */ | |
b9ec4e10 | 132 | static unsigned int diacr; |
1da177e4 LT |
133 | static char rep; /* flag telling character repeat */ |
134 | ||
135 | static unsigned char ledstate = 0xff; /* undefined */ | |
136 | static unsigned char ledioctl; | |
137 | ||
138 | static struct ledptr { | |
139 | unsigned int *addr; | |
140 | unsigned int mask; | |
141 | unsigned char valid:1; | |
142 | } ledptrs[3]; | |
143 | ||
144 | /* Simple translation table for the SysRq keys */ | |
145 | ||
146 | #ifdef CONFIG_MAGIC_SYSRQ | |
147 | unsigned char kbd_sysrq_xlate[KEY_MAX + 1] = | |
148 | "\000\0331234567890-=\177\t" /* 0x00 - 0x0f */ | |
149 | "qwertyuiop[]\r\000as" /* 0x10 - 0x1f */ | |
150 | "dfghjkl;'`\000\\zxcv" /* 0x20 - 0x2f */ | |
151 | "bnm,./\000*\000 \000\201\202\203\204\205" /* 0x30 - 0x3f */ | |
152 | "\206\207\210\211\212\000\000789-456+1" /* 0x40 - 0x4f */ | |
153 | "230\177\000\000\213\214\000\000\000\000\000\000\000\000\000\000" /* 0x50 - 0x5f */ | |
154 | "\r\000/"; /* 0x60 - 0x6f */ | |
155 | static int sysrq_down; | |
d2be8ee5 | 156 | static int sysrq_alt_use; |
1da177e4 LT |
157 | #endif |
158 | static int sysrq_alt; | |
159 | ||
160 | /* | |
c8e4c772 MR |
161 | * Translation of scancodes to keycodes. We set them on only the first |
162 | * keyboard in the list that accepts the scancode and keycode. | |
163 | * Explanation for not choosing the first attached keyboard anymore: | |
164 | * USB keyboards for example have two event devices: one for all "normal" | |
165 | * keys and one for extra function keys (like "volume up", "make coffee", | |
166 | * etc.). So this means that scancodes for the extra function keys won't | |
167 | * be valid for the first event device, but will be for the second. | |
1da177e4 LT |
168 | */ |
169 | int getkeycode(unsigned int scancode) | |
170 | { | |
c8e4c772 MR |
171 | struct input_handle *handle; |
172 | int keycode; | |
173 | int error = -ENODEV; | |
174 | ||
175 | list_for_each_entry(handle, &kbd_handler.h_list, h_node) { | |
176 | error = handle->dev->getkeycode(handle->dev, scancode, &keycode); | |
177 | if (!error) | |
178 | return keycode; | |
1da177e4 LT |
179 | } |
180 | ||
c8e4c772 | 181 | return error; |
1da177e4 LT |
182 | } |
183 | ||
184 | int setkeycode(unsigned int scancode, unsigned int keycode) | |
185 | { | |
c8e4c772 MR |
186 | struct input_handle *handle; |
187 | int error = -ENODEV; | |
188 | ||
189 | list_for_each_entry(handle, &kbd_handler.h_list, h_node) { | |
190 | error = handle->dev->setkeycode(handle->dev, scancode, keycode); | |
191 | if (!error) | |
fe1e8604 | 192 | break; |
1da177e4 LT |
193 | } |
194 | ||
c8e4c772 | 195 | return error; |
1da177e4 LT |
196 | } |
197 | ||
198 | /* | |
fe1e8604 | 199 | * Making beeps and bells. |
1da177e4 LT |
200 | */ |
201 | static void kd_nosound(unsigned long ignored) | |
202 | { | |
c8e4c772 | 203 | struct input_handle *handle; |
1da177e4 | 204 | |
c8e4c772 | 205 | list_for_each_entry(handle, &kbd_handler.h_list, h_node) { |
1da177e4 LT |
206 | if (test_bit(EV_SND, handle->dev->evbit)) { |
207 | if (test_bit(SND_TONE, handle->dev->sndbit)) | |
0e739d28 | 208 | input_inject_event(handle, EV_SND, SND_TONE, 0); |
1da177e4 | 209 | if (test_bit(SND_BELL, handle->dev->sndbit)) |
0e739d28 | 210 | input_inject_event(handle, EV_SND, SND_BELL, 0); |
1da177e4 LT |
211 | } |
212 | } | |
213 | } | |
214 | ||
8d06afab | 215 | static DEFINE_TIMER(kd_mksound_timer, kd_nosound, 0, 0); |
1da177e4 LT |
216 | |
217 | void kd_mksound(unsigned int hz, unsigned int ticks) | |
218 | { | |
fe1e8604 | 219 | struct list_head *node; |
1da177e4 LT |
220 | |
221 | del_timer(&kd_mksound_timer); | |
222 | ||
223 | if (hz) { | |
fe1e8604 | 224 | list_for_each_prev(node, &kbd_handler.h_list) { |
1da177e4 LT |
225 | struct input_handle *handle = to_handle_h(node); |
226 | if (test_bit(EV_SND, handle->dev->evbit)) { | |
227 | if (test_bit(SND_TONE, handle->dev->sndbit)) { | |
0e739d28 | 228 | input_inject_event(handle, EV_SND, SND_TONE, hz); |
1da177e4 LT |
229 | break; |
230 | } | |
231 | if (test_bit(SND_BELL, handle->dev->sndbit)) { | |
0e739d28 | 232 | input_inject_event(handle, EV_SND, SND_BELL, 1); |
1da177e4 LT |
233 | break; |
234 | } | |
235 | } | |
236 | } | |
237 | if (ticks) | |
238 | mod_timer(&kd_mksound_timer, jiffies + ticks); | |
239 | } else | |
240 | kd_nosound(0); | |
241 | } | |
242 | ||
243 | /* | |
244 | * Setting the keyboard rate. | |
245 | */ | |
246 | ||
247 | int kbd_rate(struct kbd_repeat *rep) | |
248 | { | |
249 | struct list_head *node; | |
250 | unsigned int d = 0; | |
251 | unsigned int p = 0; | |
252 | ||
0e739d28 | 253 | list_for_each(node, &kbd_handler.h_list) { |
1da177e4 LT |
254 | struct input_handle *handle = to_handle_h(node); |
255 | struct input_dev *dev = handle->dev; | |
256 | ||
257 | if (test_bit(EV_REP, dev->evbit)) { | |
258 | if (rep->delay > 0) | |
0e739d28 | 259 | input_inject_event(handle, EV_REP, REP_DELAY, rep->delay); |
1da177e4 | 260 | if (rep->period > 0) |
0e739d28 | 261 | input_inject_event(handle, EV_REP, REP_PERIOD, rep->period); |
1da177e4 LT |
262 | d = dev->rep[REP_DELAY]; |
263 | p = dev->rep[REP_PERIOD]; | |
264 | } | |
265 | } | |
266 | rep->delay = d; | |
267 | rep->period = p; | |
268 | return 0; | |
269 | } | |
270 | ||
271 | /* | |
272 | * Helper Functions. | |
273 | */ | |
274 | static void put_queue(struct vc_data *vc, int ch) | |
275 | { | |
276 | struct tty_struct *tty = vc->vc_tty; | |
277 | ||
278 | if (tty) { | |
279 | tty_insert_flip_char(tty, ch, 0); | |
280 | con_schedule_flip(tty); | |
281 | } | |
282 | } | |
283 | ||
284 | static void puts_queue(struct vc_data *vc, char *cp) | |
285 | { | |
286 | struct tty_struct *tty = vc->vc_tty; | |
287 | ||
288 | if (!tty) | |
289 | return; | |
290 | ||
291 | while (*cp) { | |
292 | tty_insert_flip_char(tty, *cp, 0); | |
293 | cp++; | |
294 | } | |
295 | con_schedule_flip(tty); | |
296 | } | |
297 | ||
298 | static void applkey(struct vc_data *vc, int key, char mode) | |
299 | { | |
300 | static char buf[] = { 0x1b, 'O', 0x00, 0x00 }; | |
301 | ||
302 | buf[1] = (mode ? 'O' : '['); | |
303 | buf[2] = key; | |
304 | puts_queue(vc, buf); | |
305 | } | |
306 | ||
307 | /* | |
308 | * Many other routines do put_queue, but I think either | |
309 | * they produce ASCII, or they produce some user-assigned | |
310 | * string, and in both cases we might assume that it is | |
311 | * in utf-8 already. UTF-8 is defined for words of up to 31 bits, | |
312 | * but we need only 16 bits here | |
313 | */ | |
314 | static void to_utf8(struct vc_data *vc, ushort c) | |
315 | { | |
316 | if (c < 0x80) | |
317 | /* 0******* */ | |
318 | put_queue(vc, c); | |
fe1e8604 | 319 | else if (c < 0x800) { |
1da177e4 | 320 | /* 110***** 10****** */ |
fe1e8604 | 321 | put_queue(vc, 0xc0 | (c >> 6)); |
1da177e4 | 322 | put_queue(vc, 0x80 | (c & 0x3f)); |
fe1e8604 | 323 | } else { |
1da177e4 LT |
324 | /* 1110**** 10****** 10****** */ |
325 | put_queue(vc, 0xe0 | (c >> 12)); | |
326 | put_queue(vc, 0x80 | ((c >> 6) & 0x3f)); | |
327 | put_queue(vc, 0x80 | (c & 0x3f)); | |
fe1e8604 | 328 | } |
1da177e4 LT |
329 | } |
330 | ||
fe1e8604 | 331 | /* |
1da177e4 LT |
332 | * Called after returning from RAW mode or when changing consoles - recompute |
333 | * shift_down[] and shift_state from key_down[] maybe called when keymap is | |
334 | * undefined, so that shiftkey release is seen | |
335 | */ | |
336 | void compute_shiftstate(void) | |
337 | { | |
338 | unsigned int i, j, k, sym, val; | |
339 | ||
340 | shift_state = 0; | |
341 | memset(shift_down, 0, sizeof(shift_down)); | |
fe1e8604 | 342 | |
1da177e4 LT |
343 | for (i = 0; i < ARRAY_SIZE(key_down); i++) { |
344 | ||
345 | if (!key_down[i]) | |
346 | continue; | |
347 | ||
348 | k = i * BITS_PER_LONG; | |
349 | ||
350 | for (j = 0; j < BITS_PER_LONG; j++, k++) { | |
351 | ||
352 | if (!test_bit(k, key_down)) | |
353 | continue; | |
354 | ||
355 | sym = U(key_maps[0][k]); | |
356 | if (KTYP(sym) != KT_SHIFT && KTYP(sym) != KT_SLOCK) | |
357 | continue; | |
358 | ||
359 | val = KVAL(sym); | |
360 | if (val == KVAL(K_CAPSSHIFT)) | |
361 | val = KVAL(K_SHIFT); | |
362 | ||
363 | shift_down[val]++; | |
364 | shift_state |= (1 << val); | |
365 | } | |
366 | } | |
367 | } | |
368 | ||
369 | /* | |
370 | * We have a combining character DIACR here, followed by the character CH. | |
371 | * If the combination occurs in the table, return the corresponding value. | |
372 | * Otherwise, if CH is a space or equals DIACR, return DIACR. | |
373 | * Otherwise, conclude that DIACR was not combining after all, | |
374 | * queue it and return CH. | |
375 | */ | |
b9ec4e10 | 376 | static unsigned int handle_diacr(struct vc_data *vc, unsigned int ch) |
1da177e4 | 377 | { |
b9ec4e10 | 378 | unsigned int d = diacr; |
1da177e4 LT |
379 | unsigned int i; |
380 | ||
381 | diacr = 0; | |
382 | ||
b9ec4e10 ST |
383 | if ((d & ~0xff) == BRL_UC_ROW) { |
384 | if ((ch & ~0xff) == BRL_UC_ROW) | |
385 | return d | ch; | |
386 | } else { | |
387 | for (i = 0; i < accent_table_size; i++) | |
388 | if (accent_table[i].diacr == d && accent_table[i].base == ch) | |
389 | return accent_table[i].result; | |
1da177e4 LT |
390 | } |
391 | ||
b9ec4e10 | 392 | if (ch == ' ' || ch == (BRL_UC_ROW|0) || ch == d) |
1da177e4 LT |
393 | return d; |
394 | ||
b9ec4e10 ST |
395 | if (kbd->kbdmode == VC_UNICODE) |
396 | to_utf8(vc, d); | |
397 | else if (d < 0x100) | |
398 | put_queue(vc, d); | |
399 | ||
1da177e4 LT |
400 | return ch; |
401 | } | |
402 | ||
403 | /* | |
404 | * Special function handlers | |
405 | */ | |
7d12e780 | 406 | static void fn_enter(struct vc_data *vc) |
1da177e4 LT |
407 | { |
408 | if (diacr) { | |
b9ec4e10 ST |
409 | if (kbd->kbdmode == VC_UNICODE) |
410 | to_utf8(vc, diacr); | |
411 | else if (diacr < 0x100) | |
412 | put_queue(vc, diacr); | |
1da177e4 LT |
413 | diacr = 0; |
414 | } | |
415 | put_queue(vc, 13); | |
416 | if (vc_kbd_mode(kbd, VC_CRLF)) | |
417 | put_queue(vc, 10); | |
418 | } | |
419 | ||
7d12e780 | 420 | static void fn_caps_toggle(struct vc_data *vc) |
1da177e4 LT |
421 | { |
422 | if (rep) | |
423 | return; | |
424 | chg_vc_kbd_led(kbd, VC_CAPSLOCK); | |
425 | } | |
426 | ||
7d12e780 | 427 | static void fn_caps_on(struct vc_data *vc) |
1da177e4 LT |
428 | { |
429 | if (rep) | |
430 | return; | |
431 | set_vc_kbd_led(kbd, VC_CAPSLOCK); | |
432 | } | |
433 | ||
7d12e780 | 434 | static void fn_show_ptregs(struct vc_data *vc) |
1da177e4 | 435 | { |
7d12e780 | 436 | struct pt_regs *regs = get_irq_regs(); |
1da177e4 LT |
437 | if (regs) |
438 | show_regs(regs); | |
439 | } | |
440 | ||
7d12e780 | 441 | static void fn_hold(struct vc_data *vc) |
1da177e4 LT |
442 | { |
443 | struct tty_struct *tty = vc->vc_tty; | |
444 | ||
445 | if (rep || !tty) | |
446 | return; | |
447 | ||
448 | /* | |
449 | * Note: SCROLLOCK will be set (cleared) by stop_tty (start_tty); | |
450 | * these routines are also activated by ^S/^Q. | |
451 | * (And SCROLLOCK can also be set by the ioctl KDSKBLED.) | |
452 | */ | |
453 | if (tty->stopped) | |
454 | start_tty(tty); | |
455 | else | |
456 | stop_tty(tty); | |
457 | } | |
458 | ||
7d12e780 | 459 | static void fn_num(struct vc_data *vc) |
1da177e4 LT |
460 | { |
461 | if (vc_kbd_mode(kbd,VC_APPLIC)) | |
462 | applkey(vc, 'P', 1); | |
463 | else | |
7d12e780 | 464 | fn_bare_num(vc); |
1da177e4 LT |
465 | } |
466 | ||
467 | /* | |
468 | * Bind this to Shift-NumLock if you work in application keypad mode | |
469 | * but want to be able to change the NumLock flag. | |
470 | * Bind this to NumLock if you prefer that the NumLock key always | |
471 | * changes the NumLock flag. | |
472 | */ | |
7d12e780 | 473 | static void fn_bare_num(struct vc_data *vc) |
1da177e4 LT |
474 | { |
475 | if (!rep) | |
476 | chg_vc_kbd_led(kbd, VC_NUMLOCK); | |
477 | } | |
478 | ||
7d12e780 | 479 | static void fn_lastcons(struct vc_data *vc) |
1da177e4 LT |
480 | { |
481 | /* switch to the last used console, ChN */ | |
482 | set_console(last_console); | |
483 | } | |
484 | ||
7d12e780 | 485 | static void fn_dec_console(struct vc_data *vc) |
1da177e4 LT |
486 | { |
487 | int i, cur = fg_console; | |
488 | ||
489 | /* Currently switching? Queue this next switch relative to that. */ | |
490 | if (want_console != -1) | |
491 | cur = want_console; | |
492 | ||
fe1e8604 | 493 | for (i = cur - 1; i != cur; i--) { |
1da177e4 | 494 | if (i == -1) |
fe1e8604 | 495 | i = MAX_NR_CONSOLES - 1; |
1da177e4 LT |
496 | if (vc_cons_allocated(i)) |
497 | break; | |
498 | } | |
499 | set_console(i); | |
500 | } | |
501 | ||
7d12e780 | 502 | static void fn_inc_console(struct vc_data *vc) |
1da177e4 LT |
503 | { |
504 | int i, cur = fg_console; | |
505 | ||
506 | /* Currently switching? Queue this next switch relative to that. */ | |
507 | if (want_console != -1) | |
508 | cur = want_console; | |
509 | ||
510 | for (i = cur+1; i != cur; i++) { | |
511 | if (i == MAX_NR_CONSOLES) | |
512 | i = 0; | |
513 | if (vc_cons_allocated(i)) | |
514 | break; | |
515 | } | |
516 | set_console(i); | |
517 | } | |
518 | ||
7d12e780 | 519 | static void fn_send_intr(struct vc_data *vc) |
1da177e4 LT |
520 | { |
521 | struct tty_struct *tty = vc->vc_tty; | |
522 | ||
523 | if (!tty) | |
524 | return; | |
525 | tty_insert_flip_char(tty, 0, TTY_BREAK); | |
526 | con_schedule_flip(tty); | |
527 | } | |
528 | ||
7d12e780 | 529 | static void fn_scroll_forw(struct vc_data *vc) |
1da177e4 LT |
530 | { |
531 | scrollfront(vc, 0); | |
532 | } | |
533 | ||
7d12e780 | 534 | static void fn_scroll_back(struct vc_data *vc) |
1da177e4 LT |
535 | { |
536 | scrollback(vc, 0); | |
537 | } | |
538 | ||
7d12e780 | 539 | static void fn_show_mem(struct vc_data *vc) |
1da177e4 LT |
540 | { |
541 | show_mem(); | |
542 | } | |
543 | ||
7d12e780 | 544 | static void fn_show_state(struct vc_data *vc) |
1da177e4 LT |
545 | { |
546 | show_state(); | |
547 | } | |
548 | ||
7d12e780 | 549 | static void fn_boot_it(struct vc_data *vc) |
1da177e4 LT |
550 | { |
551 | ctrl_alt_del(); | |
552 | } | |
553 | ||
7d12e780 | 554 | static void fn_compose(struct vc_data *vc) |
1da177e4 LT |
555 | { |
556 | dead_key_next = 1; | |
557 | } | |
558 | ||
7d12e780 | 559 | static void fn_spawn_con(struct vc_data *vc) |
1da177e4 | 560 | { |
81af8d67 EB |
561 | spin_lock(&vt_spawn_con.lock); |
562 | if (vt_spawn_con.pid) | |
563 | if (kill_pid(vt_spawn_con.pid, vt_spawn_con.sig, 1)) { | |
564 | put_pid(vt_spawn_con.pid); | |
565 | vt_spawn_con.pid = NULL; | |
566 | } | |
567 | spin_unlock(&vt_spawn_con.lock); | |
1da177e4 LT |
568 | } |
569 | ||
7d12e780 | 570 | static void fn_SAK(struct vc_data *vc) |
1da177e4 | 571 | { |
8b6312f4 | 572 | struct work_struct *SAK_work = &vc_cons[fg_console].SAK_work; |
8b6312f4 | 573 | schedule_work(SAK_work); |
1da177e4 LT |
574 | } |
575 | ||
7d12e780 | 576 | static void fn_null(struct vc_data *vc) |
1da177e4 LT |
577 | { |
578 | compute_shiftstate(); | |
579 | } | |
580 | ||
581 | /* | |
582 | * Special key handlers | |
583 | */ | |
7d12e780 | 584 | static void k_ignore(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
585 | { |
586 | } | |
587 | ||
7d12e780 | 588 | static void k_spec(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
589 | { |
590 | if (up_flag) | |
591 | return; | |
592 | if (value >= ARRAY_SIZE(fn_handler)) | |
593 | return; | |
fe1e8604 DT |
594 | if ((kbd->kbdmode == VC_RAW || |
595 | kbd->kbdmode == VC_MEDIUMRAW) && | |
1da177e4 LT |
596 | value != KVAL(K_SAK)) |
597 | return; /* SAK is allowed even in raw mode */ | |
7d12e780 | 598 | fn_handler[value](vc); |
1da177e4 LT |
599 | } |
600 | ||
7d12e780 | 601 | static void k_lowercase(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
602 | { |
603 | printk(KERN_ERR "keyboard.c: k_lowercase was called - impossible\n"); | |
604 | } | |
605 | ||
7d12e780 | 606 | static void k_unicode(struct vc_data *vc, unsigned int value, char up_flag) |
1da177e4 LT |
607 | { |
608 | if (up_flag) | |
609 | return; /* no action, if this is a key release */ | |
610 | ||
611 | if (diacr) | |
612 | value = handle_diacr(vc, value); | |
613 | ||
614 | if (dead_key_next) { | |
615 | dead_key_next = 0; | |
616 | diacr = value; | |
617 | return; | |
618 | } | |
b9ec4e10 ST |
619 | if (kbd->kbdmode == VC_UNICODE) |
620 | to_utf8(vc, value); | |
621 | else if (value < 0x100) | |
622 | put_queue(vc, value); | |
1da177e4 LT |
623 | } |
624 | ||
625 | /* | |
626 | * Handle dead key. Note that we now may have several | |
627 | * dead keys modifying the same character. Very useful | |
628 | * for Vietnamese. | |
629 | */ | |
7d12e780 | 630 | static void k_deadunicode(struct vc_data *vc, unsigned int value, char up_flag) |
1da177e4 LT |
631 | { |
632 | if (up_flag) | |
633 | return; | |
634 | diacr = (diacr ? handle_diacr(vc, value) : value); | |
635 | } | |
636 | ||
7d12e780 | 637 | static void k_self(struct vc_data *vc, unsigned char value, char up_flag) |
b9ec4e10 | 638 | { |
7d12e780 | 639 | k_unicode(vc, value, up_flag); |
b9ec4e10 ST |
640 | } |
641 | ||
7d12e780 | 642 | static void k_dead2(struct vc_data *vc, unsigned char value, char up_flag) |
b9ec4e10 | 643 | { |
7d12e780 | 644 | k_deadunicode(vc, value, up_flag); |
b9ec4e10 ST |
645 | } |
646 | ||
1da177e4 LT |
647 | /* |
648 | * Obsolete - for backwards compatibility only | |
649 | */ | |
7d12e780 | 650 | static void k_dead(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 651 | { |
0f5e560e | 652 | static const unsigned char ret_diacr[NR_DEAD] = {'`', '\'', '^', '~', '"', ',' }; |
1da177e4 | 653 | value = ret_diacr[value]; |
7d12e780 | 654 | k_deadunicode(vc, value, up_flag); |
1da177e4 LT |
655 | } |
656 | ||
7d12e780 | 657 | static void k_cons(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
658 | { |
659 | if (up_flag) | |
660 | return; | |
661 | set_console(value); | |
662 | } | |
663 | ||
7d12e780 | 664 | static void k_fn(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
665 | { |
666 | unsigned v; | |
667 | ||
668 | if (up_flag) | |
669 | return; | |
670 | v = value; | |
671 | if (v < ARRAY_SIZE(func_table)) { | |
672 | if (func_table[value]) | |
673 | puts_queue(vc, func_table[value]); | |
674 | } else | |
675 | printk(KERN_ERR "k_fn called with value=%d\n", value); | |
676 | } | |
677 | ||
7d12e780 | 678 | static void k_cur(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 679 | { |
e52b29c2 | 680 | static const char cur_chars[] = "BDCA"; |
1da177e4 LT |
681 | |
682 | if (up_flag) | |
683 | return; | |
684 | applkey(vc, cur_chars[value], vc_kbd_mode(kbd, VC_CKMODE)); | |
685 | } | |
686 | ||
7d12e780 | 687 | static void k_pad(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 688 | { |
0f5e560e AM |
689 | static const char pad_chars[] = "0123456789+-*/\015,.?()#"; |
690 | static const char app_map[] = "pqrstuvwxylSRQMnnmPQS"; | |
1da177e4 LT |
691 | |
692 | if (up_flag) | |
693 | return; /* no action, if this is a key release */ | |
694 | ||
695 | /* kludge... shift forces cursor/number keys */ | |
696 | if (vc_kbd_mode(kbd, VC_APPLIC) && !shift_down[KG_SHIFT]) { | |
697 | applkey(vc, app_map[value], 1); | |
698 | return; | |
699 | } | |
700 | ||
701 | if (!vc_kbd_led(kbd, VC_NUMLOCK)) | |
702 | switch (value) { | |
703 | case KVAL(K_PCOMMA): | |
704 | case KVAL(K_PDOT): | |
7d12e780 | 705 | k_fn(vc, KVAL(K_REMOVE), 0); |
1da177e4 LT |
706 | return; |
707 | case KVAL(K_P0): | |
7d12e780 | 708 | k_fn(vc, KVAL(K_INSERT), 0); |
1da177e4 LT |
709 | return; |
710 | case KVAL(K_P1): | |
7d12e780 | 711 | k_fn(vc, KVAL(K_SELECT), 0); |
1da177e4 LT |
712 | return; |
713 | case KVAL(K_P2): | |
7d12e780 | 714 | k_cur(vc, KVAL(K_DOWN), 0); |
1da177e4 LT |
715 | return; |
716 | case KVAL(K_P3): | |
7d12e780 | 717 | k_fn(vc, KVAL(K_PGDN), 0); |
1da177e4 LT |
718 | return; |
719 | case KVAL(K_P4): | |
7d12e780 | 720 | k_cur(vc, KVAL(K_LEFT), 0); |
1da177e4 LT |
721 | return; |
722 | case KVAL(K_P6): | |
7d12e780 | 723 | k_cur(vc, KVAL(K_RIGHT), 0); |
1da177e4 LT |
724 | return; |
725 | case KVAL(K_P7): | |
7d12e780 | 726 | k_fn(vc, KVAL(K_FIND), 0); |
1da177e4 LT |
727 | return; |
728 | case KVAL(K_P8): | |
7d12e780 | 729 | k_cur(vc, KVAL(K_UP), 0); |
1da177e4 LT |
730 | return; |
731 | case KVAL(K_P9): | |
7d12e780 | 732 | k_fn(vc, KVAL(K_PGUP), 0); |
1da177e4 LT |
733 | return; |
734 | case KVAL(K_P5): | |
735 | applkey(vc, 'G', vc_kbd_mode(kbd, VC_APPLIC)); | |
736 | return; | |
737 | } | |
738 | ||
739 | put_queue(vc, pad_chars[value]); | |
740 | if (value == KVAL(K_PENTER) && vc_kbd_mode(kbd, VC_CRLF)) | |
741 | put_queue(vc, 10); | |
742 | } | |
743 | ||
7d12e780 | 744 | static void k_shift(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
745 | { |
746 | int old_state = shift_state; | |
747 | ||
748 | if (rep) | |
749 | return; | |
750 | /* | |
751 | * Mimic typewriter: | |
752 | * a CapsShift key acts like Shift but undoes CapsLock | |
753 | */ | |
754 | if (value == KVAL(K_CAPSSHIFT)) { | |
755 | value = KVAL(K_SHIFT); | |
756 | if (!up_flag) | |
757 | clr_vc_kbd_led(kbd, VC_CAPSLOCK); | |
758 | } | |
759 | ||
760 | if (up_flag) { | |
761 | /* | |
762 | * handle the case that two shift or control | |
763 | * keys are depressed simultaneously | |
764 | */ | |
765 | if (shift_down[value]) | |
766 | shift_down[value]--; | |
767 | } else | |
768 | shift_down[value]++; | |
769 | ||
770 | if (shift_down[value]) | |
771 | shift_state |= (1 << value); | |
772 | else | |
773 | shift_state &= ~(1 << value); | |
774 | ||
775 | /* kludge */ | |
776 | if (up_flag && shift_state != old_state && npadch != -1) { | |
777 | if (kbd->kbdmode == VC_UNICODE) | |
778 | to_utf8(vc, npadch & 0xffff); | |
779 | else | |
780 | put_queue(vc, npadch & 0xff); | |
781 | npadch = -1; | |
782 | } | |
783 | } | |
784 | ||
7d12e780 | 785 | static void k_meta(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
786 | { |
787 | if (up_flag) | |
788 | return; | |
789 | ||
790 | if (vc_kbd_mode(kbd, VC_META)) { | |
791 | put_queue(vc, '\033'); | |
792 | put_queue(vc, value); | |
793 | } else | |
794 | put_queue(vc, value | 0x80); | |
795 | } | |
796 | ||
7d12e780 | 797 | static void k_ascii(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
798 | { |
799 | int base; | |
800 | ||
801 | if (up_flag) | |
802 | return; | |
803 | ||
804 | if (value < 10) { | |
805 | /* decimal input of code, while Alt depressed */ | |
806 | base = 10; | |
807 | } else { | |
808 | /* hexadecimal input of code, while AltGr depressed */ | |
809 | value -= 10; | |
810 | base = 16; | |
811 | } | |
812 | ||
813 | if (npadch == -1) | |
814 | npadch = value; | |
815 | else | |
816 | npadch = npadch * base + value; | |
817 | } | |
818 | ||
7d12e780 | 819 | static void k_lock(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
820 | { |
821 | if (up_flag || rep) | |
822 | return; | |
823 | chg_vc_kbd_lock(kbd, value); | |
824 | } | |
825 | ||
7d12e780 | 826 | static void k_slock(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 827 | { |
7d12e780 | 828 | k_shift(vc, value, up_flag); |
1da177e4 LT |
829 | if (up_flag || rep) |
830 | return; | |
831 | chg_vc_kbd_slock(kbd, value); | |
832 | /* try to make Alt, oops, AltGr and such work */ | |
833 | if (!key_maps[kbd->lockstate ^ kbd->slockstate]) { | |
834 | kbd->slockstate = 0; | |
835 | chg_vc_kbd_slock(kbd, value); | |
836 | } | |
837 | } | |
838 | ||
b9ec4e10 | 839 | /* by default, 300ms interval for combination release */ |
77426d72 ST |
840 | static unsigned brl_timeout = 300; |
841 | MODULE_PARM_DESC(brl_timeout, "Braille keys release delay in ms (0 for commit on first key release)"); | |
842 | module_param(brl_timeout, uint, 0644); | |
843 | ||
844 | static unsigned brl_nbchords = 1; | |
845 | MODULE_PARM_DESC(brl_nbchords, "Number of chords that produce a braille pattern (0 for dead chords)"); | |
846 | module_param(brl_nbchords, uint, 0644); | |
847 | ||
7d12e780 | 848 | static void k_brlcommit(struct vc_data *vc, unsigned int pattern, char up_flag) |
77426d72 ST |
849 | { |
850 | static unsigned long chords; | |
851 | static unsigned committed; | |
852 | ||
853 | if (!brl_nbchords) | |
7d12e780 | 854 | k_deadunicode(vc, BRL_UC_ROW | pattern, up_flag); |
77426d72 ST |
855 | else { |
856 | committed |= pattern; | |
857 | chords++; | |
858 | if (chords == brl_nbchords) { | |
7d12e780 | 859 | k_unicode(vc, BRL_UC_ROW | committed, up_flag); |
77426d72 ST |
860 | chords = 0; |
861 | committed = 0; | |
862 | } | |
863 | } | |
864 | } | |
865 | ||
7d12e780 | 866 | static void k_brl(struct vc_data *vc, unsigned char value, char up_flag) |
b9ec4e10 ST |
867 | { |
868 | static unsigned pressed,committing; | |
869 | static unsigned long releasestart; | |
870 | ||
871 | if (kbd->kbdmode != VC_UNICODE) { | |
872 | if (!up_flag) | |
873 | printk("keyboard mode must be unicode for braille patterns\n"); | |
874 | return; | |
875 | } | |
876 | ||
877 | if (!value) { | |
7d12e780 | 878 | k_unicode(vc, BRL_UC_ROW, up_flag); |
b9ec4e10 ST |
879 | return; |
880 | } | |
881 | ||
882 | if (value > 8) | |
883 | return; | |
884 | ||
b9ec4e10 ST |
885 | if (up_flag) { |
886 | if (brl_timeout) { | |
887 | if (!committing || | |
888 | jiffies - releasestart > (brl_timeout * HZ) / 1000) { | |
889 | committing = pressed; | |
890 | releasestart = jiffies; | |
891 | } | |
892 | pressed &= ~(1 << (value - 1)); | |
893 | if (!pressed) { | |
894 | if (committing) { | |
7d12e780 | 895 | k_brlcommit(vc, committing, 0); |
b9ec4e10 ST |
896 | committing = 0; |
897 | } | |
898 | } | |
899 | } else { | |
900 | if (committing) { | |
7d12e780 | 901 | k_brlcommit(vc, committing, 0); |
b9ec4e10 ST |
902 | committing = 0; |
903 | } | |
904 | pressed &= ~(1 << (value - 1)); | |
905 | } | |
906 | } else { | |
907 | pressed |= 1 << (value - 1); | |
908 | if (!brl_timeout) | |
909 | committing = pressed; | |
910 | } | |
911 | } | |
912 | ||
1da177e4 LT |
913 | /* |
914 | * The leds display either (i) the status of NumLock, CapsLock, ScrollLock, | |
915 | * or (ii) whatever pattern of lights people want to show using KDSETLED, | |
916 | * or (iii) specified bits of specified words in kernel memory. | |
917 | */ | |
918 | unsigned char getledstate(void) | |
919 | { | |
920 | return ledstate; | |
921 | } | |
922 | ||
923 | void setledstate(struct kbd_struct *kbd, unsigned int led) | |
924 | { | |
925 | if (!(led & ~7)) { | |
926 | ledioctl = led; | |
927 | kbd->ledmode = LED_SHOW_IOCTL; | |
928 | } else | |
929 | kbd->ledmode = LED_SHOW_FLAGS; | |
930 | set_leds(); | |
931 | } | |
932 | ||
933 | static inline unsigned char getleds(void) | |
934 | { | |
935 | struct kbd_struct *kbd = kbd_table + fg_console; | |
936 | unsigned char leds; | |
937 | int i; | |
938 | ||
939 | if (kbd->ledmode == LED_SHOW_IOCTL) | |
940 | return ledioctl; | |
941 | ||
942 | leds = kbd->ledflagstate; | |
943 | ||
944 | if (kbd->ledmode == LED_SHOW_MEM) { | |
945 | for (i = 0; i < 3; i++) | |
946 | if (ledptrs[i].valid) { | |
947 | if (*ledptrs[i].addr & ledptrs[i].mask) | |
948 | leds |= (1 << i); | |
949 | else | |
950 | leds &= ~(1 << i); | |
951 | } | |
952 | } | |
953 | return leds; | |
954 | } | |
955 | ||
956 | /* | |
957 | * This routine is the bottom half of the keyboard interrupt | |
958 | * routine, and runs with all interrupts enabled. It does | |
959 | * console changing, led setting and copy_to_cooked, which can | |
960 | * take a reasonably long time. | |
961 | * | |
962 | * Aside from timing (which isn't really that important for | |
963 | * keyboard interrupts as they happen often), using the software | |
964 | * interrupt routines for this thing allows us to easily mask | |
965 | * this when we don't want any of the above to happen. | |
966 | * This allows for easy and efficient race-condition prevention | |
0e739d28 | 967 | * for kbd_start => input_inject_event(dev, EV_LED, ...) => ... |
1da177e4 LT |
968 | */ |
969 | ||
970 | static void kbd_bh(unsigned long dummy) | |
971 | { | |
fe1e8604 | 972 | struct list_head *node; |
1da177e4 LT |
973 | unsigned char leds = getleds(); |
974 | ||
975 | if (leds != ledstate) { | |
fe1e8604 | 976 | list_for_each(node, &kbd_handler.h_list) { |
0e739d28 DT |
977 | struct input_handle *handle = to_handle_h(node); |
978 | input_inject_event(handle, EV_LED, LED_SCROLLL, !!(leds & 0x01)); | |
979 | input_inject_event(handle, EV_LED, LED_NUML, !!(leds & 0x02)); | |
980 | input_inject_event(handle, EV_LED, LED_CAPSL, !!(leds & 0x04)); | |
981 | input_inject_event(handle, EV_SYN, SYN_REPORT, 0); | |
1da177e4 LT |
982 | } |
983 | } | |
984 | ||
985 | ledstate = leds; | |
986 | } | |
987 | ||
988 | DECLARE_TASKLET_DISABLED(keyboard_tasklet, kbd_bh, 0); | |
989 | ||
1da177e4 | 990 | #if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_ALPHA) ||\ |
0b57ee9e AB |
991 | defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_SPARC) ||\ |
992 | defined(CONFIG_PARISC) || defined(CONFIG_SUPERH) ||\ | |
1da177e4 LT |
993 | (defined(CONFIG_ARM) && defined(CONFIG_KEYBOARD_ATKBD) && !defined(CONFIG_ARCH_RPC)) |
994 | ||
995 | #define HW_RAW(dev) (test_bit(EV_MSC, dev->evbit) && test_bit(MSC_RAW, dev->mscbit) &&\ | |
996 | ((dev)->id.bustype == BUS_I8042) && ((dev)->id.vendor == 0x0001) && ((dev)->id.product == 0x0001)) | |
997 | ||
0f5e560e | 998 | static const unsigned short x86_keycodes[256] = |
1da177e4 LT |
999 | { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, |
1000 | 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, | |
1001 | 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, | |
1002 | 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, | |
1003 | 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, | |
1004 | 80, 81, 82, 83, 84,118, 86, 87, 88,115,120,119,121,112,123, 92, | |
896cdc7b | 1005 | 284,285,309, 0,312, 91,327,328,329,331,333,335,336,337,338,339, |
1da177e4 LT |
1006 | 367,288,302,304,350, 89,334,326,267,126,268,269,125,347,348,349, |
1007 | 360,261,262,263,268,376,100,101,321,316,373,286,289,102,351,355, | |
1008 | 103,104,105,275,287,279,306,106,274,107,294,364,358,363,362,361, | |
1009 | 291,108,381,281,290,272,292,305,280, 99,112,257,258,359,113,114, | |
1010 | 264,117,271,374,379,265,266, 93, 94, 95, 85,259,375,260, 90,116, | |
1011 | 377,109,111,277,278,282,283,295,296,297,299,300,301,293,303,307, | |
1012 | 308,310,313,314,315,317,318,319,320,357,322,323,324,325,276,330, | |
1013 | 332,340,365,342,343,344,345,346,356,270,341,368,369,370,371,372 }; | |
1014 | ||
1015 | #ifdef CONFIG_MAC_EMUMOUSEBTN | |
1016 | extern int mac_hid_mouse_emulate_buttons(int, int, int); | |
1017 | #endif /* CONFIG_MAC_EMUMOUSEBTN */ | |
1018 | ||
0b57ee9e | 1019 | #ifdef CONFIG_SPARC |
1da177e4 LT |
1020 | static int sparc_l1_a_state = 0; |
1021 | extern void sun_do_break(void); | |
1022 | #endif | |
1023 | ||
fe1e8604 | 1024 | static int emulate_raw(struct vc_data *vc, unsigned int keycode, |
1da177e4 LT |
1025 | unsigned char up_flag) |
1026 | { | |
896cdc7b | 1027 | int code; |
1da177e4 LT |
1028 | |
1029 | switch (keycode) { | |
1030 | case KEY_PAUSE: | |
1031 | put_queue(vc, 0xe1); | |
1032 | put_queue(vc, 0x1d | up_flag); | |
1033 | put_queue(vc, 0x45 | up_flag); | |
896cdc7b DT |
1034 | break; |
1035 | ||
b9ab58dd | 1036 | case KEY_HANGEUL: |
0ae051a1 DT |
1037 | if (!up_flag) |
1038 | put_queue(vc, 0xf2); | |
896cdc7b DT |
1039 | break; |
1040 | ||
1da177e4 | 1041 | case KEY_HANJA: |
0ae051a1 DT |
1042 | if (!up_flag) |
1043 | put_queue(vc, 0xf1); | |
896cdc7b | 1044 | break; |
1da177e4 | 1045 | |
896cdc7b DT |
1046 | case KEY_SYSRQ: |
1047 | /* | |
1048 | * Real AT keyboards (that's what we're trying | |
1049 | * to emulate here emit 0xe0 0x2a 0xe0 0x37 when | |
1050 | * pressing PrtSc/SysRq alone, but simply 0x54 | |
1051 | * when pressing Alt+PrtSc/SysRq. | |
1052 | */ | |
1053 | if (sysrq_alt) { | |
1054 | put_queue(vc, 0x54 | up_flag); | |
1055 | } else { | |
1056 | put_queue(vc, 0xe0); | |
1057 | put_queue(vc, 0x2a | up_flag); | |
1058 | put_queue(vc, 0xe0); | |
1059 | put_queue(vc, 0x37 | up_flag); | |
1060 | } | |
1061 | break; | |
1062 | ||
1063 | default: | |
1064 | if (keycode > 255) | |
1065 | return -1; | |
1da177e4 | 1066 | |
896cdc7b DT |
1067 | code = x86_keycodes[keycode]; |
1068 | if (!code) | |
1069 | return -1; | |
1da177e4 | 1070 | |
896cdc7b DT |
1071 | if (code & 0x100) |
1072 | put_queue(vc, 0xe0); | |
1073 | put_queue(vc, (code & 0x7f) | up_flag); | |
1da177e4 | 1074 | |
896cdc7b | 1075 | break; |
1da177e4 LT |
1076 | } |
1077 | ||
1078 | return 0; | |
1079 | } | |
1080 | ||
1081 | #else | |
1082 | ||
1083 | #define HW_RAW(dev) 0 | |
1084 | ||
1085 | #warning "Cannot generate rawmode keyboard for your architecture yet." | |
1086 | ||
1087 | static int emulate_raw(struct vc_data *vc, unsigned int keycode, unsigned char up_flag) | |
1088 | { | |
1089 | if (keycode > 127) | |
1090 | return -1; | |
1091 | ||
1092 | put_queue(vc, keycode | up_flag); | |
1093 | return 0; | |
1094 | } | |
1095 | #endif | |
1096 | ||
1097 | static void kbd_rawcode(unsigned char data) | |
1098 | { | |
1099 | struct vc_data *vc = vc_cons[fg_console].d; | |
1100 | kbd = kbd_table + fg_console; | |
1101 | if (kbd->kbdmode == VC_RAW) | |
1102 | put_queue(vc, data); | |
1103 | } | |
1104 | ||
7d12e780 | 1105 | static void kbd_keycode(unsigned int keycode, int down, int hw_raw) |
1da177e4 LT |
1106 | { |
1107 | struct vc_data *vc = vc_cons[fg_console].d; | |
1108 | unsigned short keysym, *key_map; | |
1109 | unsigned char type, raw_mode; | |
1110 | struct tty_struct *tty; | |
1111 | int shift_final; | |
1112 | ||
1113 | tty = vc->vc_tty; | |
1114 | ||
1115 | if (tty && (!tty->driver_data)) { | |
1116 | /* No driver data? Strange. Okay we fix it then. */ | |
1117 | tty->driver_data = vc; | |
1118 | } | |
1119 | ||
1120 | kbd = kbd_table + fg_console; | |
1121 | ||
1122 | if (keycode == KEY_LEFTALT || keycode == KEY_RIGHTALT) | |
d2be8ee5 | 1123 | sysrq_alt = down ? keycode : 0; |
0b57ee9e | 1124 | #ifdef CONFIG_SPARC |
1da177e4 LT |
1125 | if (keycode == KEY_STOP) |
1126 | sparc_l1_a_state = down; | |
1127 | #endif | |
1128 | ||
1129 | rep = (down == 2); | |
1130 | ||
1131 | #ifdef CONFIG_MAC_EMUMOUSEBTN | |
1132 | if (mac_hid_mouse_emulate_buttons(1, keycode, down)) | |
1133 | return; | |
1134 | #endif /* CONFIG_MAC_EMUMOUSEBTN */ | |
1135 | ||
1136 | if ((raw_mode = (kbd->kbdmode == VC_RAW)) && !hw_raw) | |
1137 | if (emulate_raw(vc, keycode, !down << 7)) | |
9e35d206 | 1138 | if (keycode < BTN_MISC && printk_ratelimit()) |
1da177e4 LT |
1139 | printk(KERN_WARNING "keyboard.c: can't emulate rawmode for keycode %d\n", keycode); |
1140 | ||
1141 | #ifdef CONFIG_MAGIC_SYSRQ /* Handle the SysRq Hack */ | |
1142 | if (keycode == KEY_SYSRQ && (sysrq_down || (down == 1 && sysrq_alt))) { | |
d2be8ee5 FR |
1143 | if (!sysrq_down) { |
1144 | sysrq_down = down; | |
1145 | sysrq_alt_use = sysrq_alt; | |
1146 | } | |
1da177e4 LT |
1147 | return; |
1148 | } | |
d2be8ee5 FR |
1149 | if (sysrq_down && !down && keycode == sysrq_alt_use) |
1150 | sysrq_down = 0; | |
1da177e4 | 1151 | if (sysrq_down && down && !rep) { |
7d12e780 | 1152 | handle_sysrq(kbd_sysrq_xlate[keycode], tty); |
1da177e4 LT |
1153 | return; |
1154 | } | |
1155 | #endif | |
0b57ee9e | 1156 | #ifdef CONFIG_SPARC |
1da177e4 LT |
1157 | if (keycode == KEY_A && sparc_l1_a_state) { |
1158 | sparc_l1_a_state = 0; | |
1159 | sun_do_break(); | |
1160 | } | |
1161 | #endif | |
1162 | ||
1163 | if (kbd->kbdmode == VC_MEDIUMRAW) { | |
1164 | /* | |
1165 | * This is extended medium raw mode, with keys above 127 | |
1166 | * encoded as 0, high 7 bits, low 7 bits, with the 0 bearing | |
1167 | * the 'up' flag if needed. 0 is reserved, so this shouldn't | |
1168 | * interfere with anything else. The two bytes after 0 will | |
1169 | * always have the up flag set not to interfere with older | |
1170 | * applications. This allows for 16384 different keycodes, | |
1171 | * which should be enough. | |
1172 | */ | |
1173 | if (keycode < 128) { | |
1174 | put_queue(vc, keycode | (!down << 7)); | |
1175 | } else { | |
1176 | put_queue(vc, !down << 7); | |
1177 | put_queue(vc, (keycode >> 7) | 0x80); | |
1178 | put_queue(vc, keycode | 0x80); | |
1179 | } | |
1180 | raw_mode = 1; | |
1181 | } | |
1182 | ||
1183 | if (down) | |
1184 | set_bit(keycode, key_down); | |
1185 | else | |
1186 | clear_bit(keycode, key_down); | |
1187 | ||
fe1e8604 DT |
1188 | if (rep && |
1189 | (!vc_kbd_mode(kbd, VC_REPEAT) || | |
1190 | (tty && !L_ECHO(tty) && tty->driver->chars_in_buffer(tty)))) { | |
1da177e4 LT |
1191 | /* |
1192 | * Don't repeat a key if the input buffers are not empty and the | |
fe1e8604 | 1193 | * characters get aren't echoed locally. This makes key repeat |
1da177e4 LT |
1194 | * usable with slow applications and under heavy loads. |
1195 | */ | |
1196 | return; | |
1197 | } | |
1198 | ||
1199 | shift_final = (shift_state | kbd->slockstate) ^ kbd->lockstate; | |
1200 | key_map = key_maps[shift_final]; | |
1201 | ||
1202 | if (!key_map) { | |
1203 | compute_shiftstate(); | |
1204 | kbd->slockstate = 0; | |
1205 | return; | |
1206 | } | |
1207 | ||
1208 | if (keycode > NR_KEYS) | |
b9ec4e10 ST |
1209 | if (keycode >= KEY_BRL_DOT1 && keycode <= KEY_BRL_DOT8) |
1210 | keysym = K(KT_BRL, keycode - KEY_BRL_DOT1 + 1); | |
1211 | else | |
1212 | return; | |
1213 | else | |
1214 | keysym = key_map[keycode]; | |
1da177e4 | 1215 | |
1da177e4 LT |
1216 | type = KTYP(keysym); |
1217 | ||
1218 | if (type < 0xf0) { | |
fe1e8604 DT |
1219 | if (down && !raw_mode) |
1220 | to_utf8(vc, keysym); | |
1da177e4 LT |
1221 | return; |
1222 | } | |
1223 | ||
1224 | type -= 0xf0; | |
1225 | ||
1226 | if (raw_mode && type != KT_SPEC && type != KT_SHIFT) | |
1227 | return; | |
1228 | ||
1229 | if (type == KT_LETTER) { | |
1230 | type = KT_LATIN; | |
1231 | if (vc_kbd_led(kbd, VC_CAPSLOCK)) { | |
1232 | key_map = key_maps[shift_final ^ (1 << KG_SHIFT)]; | |
1233 | if (key_map) | |
1234 | keysym = key_map[keycode]; | |
1235 | } | |
1236 | } | |
1237 | ||
7d12e780 | 1238 | (*k_handler[type])(vc, keysym & 0xff, !down); |
1da177e4 LT |
1239 | |
1240 | if (type != KT_SLOCK) | |
1241 | kbd->slockstate = 0; | |
1242 | } | |
1243 | ||
fe1e8604 | 1244 | static void kbd_event(struct input_handle *handle, unsigned int event_type, |
1da177e4 LT |
1245 | unsigned int event_code, int value) |
1246 | { | |
1247 | if (event_type == EV_MSC && event_code == MSC_RAW && HW_RAW(handle->dev)) | |
1248 | kbd_rawcode(value); | |
1249 | if (event_type == EV_KEY) | |
7d12e780 | 1250 | kbd_keycode(event_code, value, HW_RAW(handle->dev)); |
1da177e4 LT |
1251 | tasklet_schedule(&keyboard_tasklet); |
1252 | do_poke_blanked_console = 1; | |
1253 | schedule_console_callback(); | |
1254 | } | |
1255 | ||
1da177e4 LT |
1256 | /* |
1257 | * When a keyboard (or other input device) is found, the kbd_connect | |
1258 | * function is called. The function then looks at the device, and if it | |
1259 | * likes it, it can open it and get events from it. In this (kbd_connect) | |
1260 | * function, we should decide which VT to bind that keyboard to initially. | |
1261 | */ | |
5b2a0826 DT |
1262 | static int kbd_connect(struct input_handler *handler, struct input_dev *dev, |
1263 | const struct input_device_id *id) | |
1da177e4 LT |
1264 | { |
1265 | struct input_handle *handle; | |
5b2a0826 | 1266 | int error; |
1da177e4 LT |
1267 | int i; |
1268 | ||
1269 | for (i = KEY_RESERVED; i < BTN_MISC; i++) | |
fe1e8604 DT |
1270 | if (test_bit(i, dev->keybit)) |
1271 | break; | |
1da177e4 | 1272 | |
fe1e8604 | 1273 | if (i == BTN_MISC && !test_bit(EV_SND, dev->evbit)) |
5b2a0826 | 1274 | return -ENODEV; |
1da177e4 | 1275 | |
22479e1c DT |
1276 | handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL); |
1277 | if (!handle) | |
5b2a0826 | 1278 | return -ENOMEM; |
1da177e4 LT |
1279 | |
1280 | handle->dev = dev; | |
1281 | handle->handler = handler; | |
fe1e8604 | 1282 | handle->name = "kbd"; |
1da177e4 | 1283 | |
5b2a0826 DT |
1284 | error = input_register_handle(handle); |
1285 | if (error) | |
1286 | goto err_free_handle; | |
1da177e4 | 1287 | |
5b2a0826 DT |
1288 | error = input_open_device(handle); |
1289 | if (error) | |
1290 | goto err_unregister_handle; | |
1291 | ||
1292 | return 0; | |
1293 | ||
1294 | err_unregister_handle: | |
1295 | input_unregister_handle(handle); | |
1296 | err_free_handle: | |
1297 | kfree(handle); | |
1298 | return error; | |
1da177e4 LT |
1299 | } |
1300 | ||
1301 | static void kbd_disconnect(struct input_handle *handle) | |
1302 | { | |
1303 | input_close_device(handle); | |
5b2a0826 | 1304 | input_unregister_handle(handle); |
1da177e4 LT |
1305 | kfree(handle); |
1306 | } | |
1307 | ||
c7e8dc6e DT |
1308 | /* |
1309 | * Start keyboard handler on the new keyboard by refreshing LED state to | |
1310 | * match the rest of the system. | |
1311 | */ | |
1312 | static void kbd_start(struct input_handle *handle) | |
1313 | { | |
1314 | unsigned char leds = ledstate; | |
1315 | ||
1316 | tasklet_disable(&keyboard_tasklet); | |
1317 | if (leds != 0xff) { | |
0e739d28 DT |
1318 | input_inject_event(handle, EV_LED, LED_SCROLLL, !!(leds & 0x01)); |
1319 | input_inject_event(handle, EV_LED, LED_NUML, !!(leds & 0x02)); | |
1320 | input_inject_event(handle, EV_LED, LED_CAPSL, !!(leds & 0x04)); | |
1321 | input_inject_event(handle, EV_SYN, SYN_REPORT, 0); | |
c7e8dc6e DT |
1322 | } |
1323 | tasklet_enable(&keyboard_tasklet); | |
1324 | } | |
1325 | ||
66e66118 | 1326 | static const struct input_device_id kbd_ids[] = { |
1da177e4 LT |
1327 | { |
1328 | .flags = INPUT_DEVICE_ID_MATCH_EVBIT, | |
1329 | .evbit = { BIT(EV_KEY) }, | |
1330 | }, | |
fe1e8604 | 1331 | |
1da177e4 LT |
1332 | { |
1333 | .flags = INPUT_DEVICE_ID_MATCH_EVBIT, | |
1334 | .evbit = { BIT(EV_SND) }, | |
fe1e8604 | 1335 | }, |
1da177e4 LT |
1336 | |
1337 | { }, /* Terminating entry */ | |
1338 | }; | |
1339 | ||
1340 | MODULE_DEVICE_TABLE(input, kbd_ids); | |
1341 | ||
1342 | static struct input_handler kbd_handler = { | |
1343 | .event = kbd_event, | |
1344 | .connect = kbd_connect, | |
1345 | .disconnect = kbd_disconnect, | |
c7e8dc6e | 1346 | .start = kbd_start, |
1da177e4 LT |
1347 | .name = "kbd", |
1348 | .id_table = kbd_ids, | |
1349 | }; | |
1350 | ||
1351 | int __init kbd_init(void) | |
1352 | { | |
1353 | int i; | |
4263cf0f | 1354 | int error; |
1da177e4 | 1355 | |
2b192908 DT |
1356 | for (i = 0; i < MAX_NR_CONSOLES; i++) { |
1357 | kbd_table[i].ledflagstate = KBD_DEFLEDS; | |
1358 | kbd_table[i].default_ledflagstate = KBD_DEFLEDS; | |
1359 | kbd_table[i].ledmode = LED_SHOW_FLAGS; | |
1360 | kbd_table[i].lockstate = KBD_DEFLOCK; | |
1361 | kbd_table[i].slockstate = 0; | |
1362 | kbd_table[i].modeflags = KBD_DEFMODE; | |
1363 | kbd_table[i].kbdmode = VC_XLATE; | |
1364 | } | |
1da177e4 | 1365 | |
4263cf0f DT |
1366 | error = input_register_handler(&kbd_handler); |
1367 | if (error) | |
1368 | return error; | |
1da177e4 LT |
1369 | |
1370 | tasklet_enable(&keyboard_tasklet); | |
1371 | tasklet_schedule(&keyboard_tasklet); | |
1372 | ||
1373 | return 0; | |
1374 | } |