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Commit | Line | Data |
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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 | ||
759448f4 | 27 | #include <linux/consolemap.h> |
1da177e4 LT |
28 | #include <linux/module.h> |
29 | #include <linux/sched.h> | |
30 | #include <linux/tty.h> | |
31 | #include <linux/tty_flip.h> | |
32 | #include <linux/mm.h> | |
33 | #include <linux/string.h> | |
34 | #include <linux/init.h> | |
35 | #include <linux/slab.h> | |
7d12e780 | 36 | #include <linux/irq.h> |
1da177e4 LT |
37 | |
38 | #include <linux/kbd_kern.h> | |
39 | #include <linux/kbd_diacr.h> | |
40 | #include <linux/vt_kern.h> | |
41 | #include <linux/sysrq.h> | |
42 | #include <linux/input.h> | |
83cc5ed3 | 43 | #include <linux/reboot.h> |
1da177e4 | 44 | |
1da177e4 LT |
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 | 112 | struct vt_spawn_console vt_spawn_con = { |
ccc94256 | 113 | .lock = __SPIN_LOCK_UNLOCKED(vt_spawn_con.lock), |
81af8d67 EB |
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 | /* | |
c8e4c772 MR |
162 | * Translation of scancodes to keycodes. We set them on only the first |
163 | * keyboard in the list that accepts the scancode and keycode. | |
164 | * Explanation for not choosing the first attached keyboard anymore: | |
165 | * USB keyboards for example have two event devices: one for all "normal" | |
166 | * keys and one for extra function keys (like "volume up", "make coffee", | |
167 | * etc.). So this means that scancodes for the extra function keys won't | |
168 | * be valid for the first event device, but will be for the second. | |
1da177e4 LT |
169 | */ |
170 | int getkeycode(unsigned int scancode) | |
171 | { | |
c8e4c772 MR |
172 | struct input_handle *handle; |
173 | int keycode; | |
174 | int error = -ENODEV; | |
175 | ||
176 | list_for_each_entry(handle, &kbd_handler.h_list, h_node) { | |
177 | error = handle->dev->getkeycode(handle->dev, scancode, &keycode); | |
178 | if (!error) | |
179 | return keycode; | |
1da177e4 LT |
180 | } |
181 | ||
c8e4c772 | 182 | return error; |
1da177e4 LT |
183 | } |
184 | ||
185 | int setkeycode(unsigned int scancode, unsigned int keycode) | |
186 | { | |
c8e4c772 MR |
187 | struct input_handle *handle; |
188 | int error = -ENODEV; | |
189 | ||
190 | list_for_each_entry(handle, &kbd_handler.h_list, h_node) { | |
191 | error = handle->dev->setkeycode(handle->dev, scancode, keycode); | |
192 | if (!error) | |
fe1e8604 | 193 | break; |
1da177e4 LT |
194 | } |
195 | ||
c8e4c772 | 196 | return error; |
1da177e4 LT |
197 | } |
198 | ||
199 | /* | |
fe1e8604 | 200 | * Making beeps and bells. |
1da177e4 LT |
201 | */ |
202 | static void kd_nosound(unsigned long ignored) | |
203 | { | |
c8e4c772 | 204 | struct input_handle *handle; |
1da177e4 | 205 | |
c8e4c772 | 206 | list_for_each_entry(handle, &kbd_handler.h_list, h_node) { |
1da177e4 LT |
207 | if (test_bit(EV_SND, handle->dev->evbit)) { |
208 | if (test_bit(SND_TONE, handle->dev->sndbit)) | |
0e739d28 | 209 | input_inject_event(handle, EV_SND, SND_TONE, 0); |
1da177e4 | 210 | if (test_bit(SND_BELL, handle->dev->sndbit)) |
0e739d28 | 211 | input_inject_event(handle, EV_SND, SND_BELL, 0); |
1da177e4 LT |
212 | } |
213 | } | |
214 | } | |
215 | ||
8d06afab | 216 | static DEFINE_TIMER(kd_mksound_timer, kd_nosound, 0, 0); |
1da177e4 LT |
217 | |
218 | void kd_mksound(unsigned int hz, unsigned int ticks) | |
219 | { | |
fe1e8604 | 220 | struct list_head *node; |
1da177e4 LT |
221 | |
222 | del_timer(&kd_mksound_timer); | |
223 | ||
224 | if (hz) { | |
fe1e8604 | 225 | list_for_each_prev(node, &kbd_handler.h_list) { |
1da177e4 LT |
226 | struct input_handle *handle = to_handle_h(node); |
227 | if (test_bit(EV_SND, handle->dev->evbit)) { | |
228 | if (test_bit(SND_TONE, handle->dev->sndbit)) { | |
0e739d28 | 229 | input_inject_event(handle, EV_SND, SND_TONE, hz); |
1da177e4 LT |
230 | break; |
231 | } | |
232 | if (test_bit(SND_BELL, handle->dev->sndbit)) { | |
0e739d28 | 233 | input_inject_event(handle, EV_SND, SND_BELL, 1); |
1da177e4 LT |
234 | break; |
235 | } | |
236 | } | |
237 | } | |
238 | if (ticks) | |
239 | mod_timer(&kd_mksound_timer, jiffies + ticks); | |
240 | } else | |
241 | kd_nosound(0); | |
242 | } | |
243 | ||
244 | /* | |
245 | * Setting the keyboard rate. | |
246 | */ | |
247 | ||
248 | int kbd_rate(struct kbd_repeat *rep) | |
249 | { | |
250 | struct list_head *node; | |
251 | unsigned int d = 0; | |
252 | unsigned int p = 0; | |
253 | ||
0e739d28 | 254 | list_for_each(node, &kbd_handler.h_list) { |
1da177e4 LT |
255 | struct input_handle *handle = to_handle_h(node); |
256 | struct input_dev *dev = handle->dev; | |
257 | ||
258 | if (test_bit(EV_REP, dev->evbit)) { | |
259 | if (rep->delay > 0) | |
0e739d28 | 260 | input_inject_event(handle, EV_REP, REP_DELAY, rep->delay); |
1da177e4 | 261 | if (rep->period > 0) |
0e739d28 | 262 | input_inject_event(handle, EV_REP, REP_PERIOD, rep->period); |
1da177e4 LT |
263 | d = dev->rep[REP_DELAY]; |
264 | p = dev->rep[REP_PERIOD]; | |
265 | } | |
266 | } | |
267 | rep->delay = d; | |
268 | rep->period = p; | |
269 | return 0; | |
270 | } | |
271 | ||
272 | /* | |
273 | * Helper Functions. | |
274 | */ | |
275 | static void put_queue(struct vc_data *vc, int ch) | |
276 | { | |
277 | struct tty_struct *tty = vc->vc_tty; | |
278 | ||
279 | if (tty) { | |
280 | tty_insert_flip_char(tty, ch, 0); | |
281 | con_schedule_flip(tty); | |
282 | } | |
283 | } | |
284 | ||
285 | static void puts_queue(struct vc_data *vc, char *cp) | |
286 | { | |
287 | struct tty_struct *tty = vc->vc_tty; | |
288 | ||
289 | if (!tty) | |
290 | return; | |
291 | ||
292 | while (*cp) { | |
293 | tty_insert_flip_char(tty, *cp, 0); | |
294 | cp++; | |
295 | } | |
296 | con_schedule_flip(tty); | |
297 | } | |
298 | ||
299 | static void applkey(struct vc_data *vc, int key, char mode) | |
300 | { | |
301 | static char buf[] = { 0x1b, 'O', 0x00, 0x00 }; | |
302 | ||
303 | buf[1] = (mode ? 'O' : '['); | |
304 | buf[2] = key; | |
305 | puts_queue(vc, buf); | |
306 | } | |
307 | ||
308 | /* | |
309 | * Many other routines do put_queue, but I think either | |
310 | * they produce ASCII, or they produce some user-assigned | |
311 | * string, and in both cases we might assume that it is | |
759448f4 | 312 | * in utf-8 already. |
1da177e4 | 313 | */ |
759448f4 | 314 | static void to_utf8(struct vc_data *vc, uint c) |
1da177e4 LT |
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)); |
759448f4 JE |
323 | } else if (c < 0x10000) { |
324 | if (c >= 0xD800 && c < 0xE000) | |
325 | return; | |
326 | if (c == 0xFFFF) | |
327 | return; | |
1da177e4 LT |
328 | /* 1110**** 10****** 10****** */ |
329 | put_queue(vc, 0xe0 | (c >> 12)); | |
330 | put_queue(vc, 0x80 | ((c >> 6) & 0x3f)); | |
331 | put_queue(vc, 0x80 | (c & 0x3f)); | |
759448f4 JE |
332 | } else if (c < 0x110000) { |
333 | /* 11110*** 10****** 10****** 10****** */ | |
334 | put_queue(vc, 0xf0 | (c >> 18)); | |
335 | put_queue(vc, 0x80 | ((c >> 12) & 0x3f)); | |
336 | put_queue(vc, 0x80 | ((c >> 6) & 0x3f)); | |
337 | put_queue(vc, 0x80 | (c & 0x3f)); | |
fe1e8604 | 338 | } |
1da177e4 LT |
339 | } |
340 | ||
fe1e8604 | 341 | /* |
1da177e4 LT |
342 | * Called after returning from RAW mode or when changing consoles - recompute |
343 | * shift_down[] and shift_state from key_down[] maybe called when keymap is | |
344 | * undefined, so that shiftkey release is seen | |
345 | */ | |
346 | void compute_shiftstate(void) | |
347 | { | |
348 | unsigned int i, j, k, sym, val; | |
349 | ||
350 | shift_state = 0; | |
351 | memset(shift_down, 0, sizeof(shift_down)); | |
fe1e8604 | 352 | |
1da177e4 LT |
353 | for (i = 0; i < ARRAY_SIZE(key_down); i++) { |
354 | ||
355 | if (!key_down[i]) | |
356 | continue; | |
357 | ||
358 | k = i * BITS_PER_LONG; | |
359 | ||
360 | for (j = 0; j < BITS_PER_LONG; j++, k++) { | |
361 | ||
362 | if (!test_bit(k, key_down)) | |
363 | continue; | |
364 | ||
365 | sym = U(key_maps[0][k]); | |
366 | if (KTYP(sym) != KT_SHIFT && KTYP(sym) != KT_SLOCK) | |
367 | continue; | |
368 | ||
369 | val = KVAL(sym); | |
370 | if (val == KVAL(K_CAPSSHIFT)) | |
371 | val = KVAL(K_SHIFT); | |
372 | ||
373 | shift_down[val]++; | |
374 | shift_state |= (1 << val); | |
375 | } | |
376 | } | |
377 | } | |
378 | ||
379 | /* | |
380 | * We have a combining character DIACR here, followed by the character CH. | |
381 | * If the combination occurs in the table, return the corresponding value. | |
382 | * Otherwise, if CH is a space or equals DIACR, return DIACR. | |
383 | * Otherwise, conclude that DIACR was not combining after all, | |
384 | * queue it and return CH. | |
385 | */ | |
b9ec4e10 | 386 | static unsigned int handle_diacr(struct vc_data *vc, unsigned int ch) |
1da177e4 | 387 | { |
b9ec4e10 | 388 | unsigned int d = diacr; |
1da177e4 LT |
389 | unsigned int i; |
390 | ||
391 | diacr = 0; | |
392 | ||
b9ec4e10 ST |
393 | if ((d & ~0xff) == BRL_UC_ROW) { |
394 | if ((ch & ~0xff) == BRL_UC_ROW) | |
395 | return d | ch; | |
396 | } else { | |
397 | for (i = 0; i < accent_table_size; i++) | |
398 | if (accent_table[i].diacr == d && accent_table[i].base == ch) | |
399 | return accent_table[i].result; | |
1da177e4 LT |
400 | } |
401 | ||
b9ec4e10 | 402 | if (ch == ' ' || ch == (BRL_UC_ROW|0) || ch == d) |
1da177e4 LT |
403 | return d; |
404 | ||
b9ec4e10 | 405 | if (kbd->kbdmode == VC_UNICODE) |
759448f4 | 406 | to_utf8(vc, conv_8bit_to_uni(d)); |
b9ec4e10 ST |
407 | else if (d < 0x100) |
408 | put_queue(vc, d); | |
409 | ||
1da177e4 LT |
410 | return ch; |
411 | } | |
412 | ||
413 | /* | |
414 | * Special function handlers | |
415 | */ | |
7d12e780 | 416 | static void fn_enter(struct vc_data *vc) |
1da177e4 LT |
417 | { |
418 | if (diacr) { | |
b9ec4e10 | 419 | if (kbd->kbdmode == VC_UNICODE) |
759448f4 | 420 | to_utf8(vc, conv_8bit_to_uni(diacr)); |
b9ec4e10 ST |
421 | else if (diacr < 0x100) |
422 | put_queue(vc, diacr); | |
1da177e4 LT |
423 | diacr = 0; |
424 | } | |
425 | put_queue(vc, 13); | |
426 | if (vc_kbd_mode(kbd, VC_CRLF)) | |
427 | put_queue(vc, 10); | |
428 | } | |
429 | ||
7d12e780 | 430 | static void fn_caps_toggle(struct vc_data *vc) |
1da177e4 LT |
431 | { |
432 | if (rep) | |
433 | return; | |
434 | chg_vc_kbd_led(kbd, VC_CAPSLOCK); | |
435 | } | |
436 | ||
7d12e780 | 437 | static void fn_caps_on(struct vc_data *vc) |
1da177e4 LT |
438 | { |
439 | if (rep) | |
440 | return; | |
441 | set_vc_kbd_led(kbd, VC_CAPSLOCK); | |
442 | } | |
443 | ||
7d12e780 | 444 | static void fn_show_ptregs(struct vc_data *vc) |
1da177e4 | 445 | { |
7d12e780 | 446 | struct pt_regs *regs = get_irq_regs(); |
1da177e4 LT |
447 | if (regs) |
448 | show_regs(regs); | |
449 | } | |
450 | ||
7d12e780 | 451 | static void fn_hold(struct vc_data *vc) |
1da177e4 LT |
452 | { |
453 | struct tty_struct *tty = vc->vc_tty; | |
454 | ||
455 | if (rep || !tty) | |
456 | return; | |
457 | ||
458 | /* | |
459 | * Note: SCROLLOCK will be set (cleared) by stop_tty (start_tty); | |
460 | * these routines are also activated by ^S/^Q. | |
461 | * (And SCROLLOCK can also be set by the ioctl KDSKBLED.) | |
462 | */ | |
463 | if (tty->stopped) | |
464 | start_tty(tty); | |
465 | else | |
466 | stop_tty(tty); | |
467 | } | |
468 | ||
7d12e780 | 469 | static void fn_num(struct vc_data *vc) |
1da177e4 LT |
470 | { |
471 | if (vc_kbd_mode(kbd,VC_APPLIC)) | |
472 | applkey(vc, 'P', 1); | |
473 | else | |
7d12e780 | 474 | fn_bare_num(vc); |
1da177e4 LT |
475 | } |
476 | ||
477 | /* | |
478 | * Bind this to Shift-NumLock if you work in application keypad mode | |
479 | * but want to be able to change the NumLock flag. | |
480 | * Bind this to NumLock if you prefer that the NumLock key always | |
481 | * changes the NumLock flag. | |
482 | */ | |
7d12e780 | 483 | static void fn_bare_num(struct vc_data *vc) |
1da177e4 LT |
484 | { |
485 | if (!rep) | |
486 | chg_vc_kbd_led(kbd, VC_NUMLOCK); | |
487 | } | |
488 | ||
7d12e780 | 489 | static void fn_lastcons(struct vc_data *vc) |
1da177e4 LT |
490 | { |
491 | /* switch to the last used console, ChN */ | |
492 | set_console(last_console); | |
493 | } | |
494 | ||
7d12e780 | 495 | static void fn_dec_console(struct vc_data *vc) |
1da177e4 LT |
496 | { |
497 | int i, cur = fg_console; | |
498 | ||
499 | /* Currently switching? Queue this next switch relative to that. */ | |
500 | if (want_console != -1) | |
501 | cur = want_console; | |
502 | ||
fe1e8604 | 503 | for (i = cur - 1; i != cur; i--) { |
1da177e4 | 504 | if (i == -1) |
fe1e8604 | 505 | i = MAX_NR_CONSOLES - 1; |
1da177e4 LT |
506 | if (vc_cons_allocated(i)) |
507 | break; | |
508 | } | |
509 | set_console(i); | |
510 | } | |
511 | ||
7d12e780 | 512 | static void fn_inc_console(struct vc_data *vc) |
1da177e4 LT |
513 | { |
514 | int i, cur = fg_console; | |
515 | ||
516 | /* Currently switching? Queue this next switch relative to that. */ | |
517 | if (want_console != -1) | |
518 | cur = want_console; | |
519 | ||
520 | for (i = cur+1; i != cur; i++) { | |
521 | if (i == MAX_NR_CONSOLES) | |
522 | i = 0; | |
523 | if (vc_cons_allocated(i)) | |
524 | break; | |
525 | } | |
526 | set_console(i); | |
527 | } | |
528 | ||
7d12e780 | 529 | static void fn_send_intr(struct vc_data *vc) |
1da177e4 LT |
530 | { |
531 | struct tty_struct *tty = vc->vc_tty; | |
532 | ||
533 | if (!tty) | |
534 | return; | |
535 | tty_insert_flip_char(tty, 0, TTY_BREAK); | |
536 | con_schedule_flip(tty); | |
537 | } | |
538 | ||
7d12e780 | 539 | static void fn_scroll_forw(struct vc_data *vc) |
1da177e4 LT |
540 | { |
541 | scrollfront(vc, 0); | |
542 | } | |
543 | ||
7d12e780 | 544 | static void fn_scroll_back(struct vc_data *vc) |
1da177e4 LT |
545 | { |
546 | scrollback(vc, 0); | |
547 | } | |
548 | ||
7d12e780 | 549 | static void fn_show_mem(struct vc_data *vc) |
1da177e4 LT |
550 | { |
551 | show_mem(); | |
552 | } | |
553 | ||
7d12e780 | 554 | static void fn_show_state(struct vc_data *vc) |
1da177e4 LT |
555 | { |
556 | show_state(); | |
557 | } | |
558 | ||
7d12e780 | 559 | static void fn_boot_it(struct vc_data *vc) |
1da177e4 LT |
560 | { |
561 | ctrl_alt_del(); | |
562 | } | |
563 | ||
7d12e780 | 564 | static void fn_compose(struct vc_data *vc) |
1da177e4 LT |
565 | { |
566 | dead_key_next = 1; | |
567 | } | |
568 | ||
7d12e780 | 569 | static void fn_spawn_con(struct vc_data *vc) |
1da177e4 | 570 | { |
81af8d67 EB |
571 | spin_lock(&vt_spawn_con.lock); |
572 | if (vt_spawn_con.pid) | |
573 | if (kill_pid(vt_spawn_con.pid, vt_spawn_con.sig, 1)) { | |
574 | put_pid(vt_spawn_con.pid); | |
575 | vt_spawn_con.pid = NULL; | |
576 | } | |
577 | spin_unlock(&vt_spawn_con.lock); | |
1da177e4 LT |
578 | } |
579 | ||
7d12e780 | 580 | static void fn_SAK(struct vc_data *vc) |
1da177e4 | 581 | { |
8b6312f4 | 582 | struct work_struct *SAK_work = &vc_cons[fg_console].SAK_work; |
8b6312f4 | 583 | schedule_work(SAK_work); |
1da177e4 LT |
584 | } |
585 | ||
7d12e780 | 586 | static void fn_null(struct vc_data *vc) |
1da177e4 LT |
587 | { |
588 | compute_shiftstate(); | |
589 | } | |
590 | ||
591 | /* | |
592 | * Special key handlers | |
593 | */ | |
7d12e780 | 594 | static void k_ignore(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
595 | { |
596 | } | |
597 | ||
7d12e780 | 598 | static void k_spec(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
599 | { |
600 | if (up_flag) | |
601 | return; | |
602 | if (value >= ARRAY_SIZE(fn_handler)) | |
603 | return; | |
fe1e8604 DT |
604 | if ((kbd->kbdmode == VC_RAW || |
605 | kbd->kbdmode == VC_MEDIUMRAW) && | |
1da177e4 LT |
606 | value != KVAL(K_SAK)) |
607 | return; /* SAK is allowed even in raw mode */ | |
7d12e780 | 608 | fn_handler[value](vc); |
1da177e4 LT |
609 | } |
610 | ||
7d12e780 | 611 | static void k_lowercase(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
612 | { |
613 | printk(KERN_ERR "keyboard.c: k_lowercase was called - impossible\n"); | |
614 | } | |
615 | ||
7d12e780 | 616 | static void k_unicode(struct vc_data *vc, unsigned int value, char up_flag) |
1da177e4 LT |
617 | { |
618 | if (up_flag) | |
619 | return; /* no action, if this is a key release */ | |
620 | ||
621 | if (diacr) | |
622 | value = handle_diacr(vc, value); | |
623 | ||
624 | if (dead_key_next) { | |
625 | dead_key_next = 0; | |
626 | diacr = value; | |
627 | return; | |
628 | } | |
b9ec4e10 | 629 | if (kbd->kbdmode == VC_UNICODE) |
759448f4 | 630 | to_utf8(vc, conv_8bit_to_uni(value)); |
b9ec4e10 ST |
631 | else if (value < 0x100) |
632 | put_queue(vc, value); | |
1da177e4 LT |
633 | } |
634 | ||
635 | /* | |
636 | * Handle dead key. Note that we now may have several | |
637 | * dead keys modifying the same character. Very useful | |
638 | * for Vietnamese. | |
639 | */ | |
7d12e780 | 640 | static void k_deadunicode(struct vc_data *vc, unsigned int value, char up_flag) |
1da177e4 LT |
641 | { |
642 | if (up_flag) | |
643 | return; | |
644 | diacr = (diacr ? handle_diacr(vc, value) : value); | |
645 | } | |
646 | ||
7d12e780 | 647 | static void k_self(struct vc_data *vc, unsigned char value, char up_flag) |
b9ec4e10 | 648 | { |
7d12e780 | 649 | k_unicode(vc, value, up_flag); |
b9ec4e10 ST |
650 | } |
651 | ||
7d12e780 | 652 | static void k_dead2(struct vc_data *vc, unsigned char value, char up_flag) |
b9ec4e10 | 653 | { |
7d12e780 | 654 | k_deadunicode(vc, value, up_flag); |
b9ec4e10 ST |
655 | } |
656 | ||
1da177e4 LT |
657 | /* |
658 | * Obsolete - for backwards compatibility only | |
659 | */ | |
7d12e780 | 660 | static void k_dead(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 661 | { |
0f5e560e | 662 | static const unsigned char ret_diacr[NR_DEAD] = {'`', '\'', '^', '~', '"', ',' }; |
1da177e4 | 663 | value = ret_diacr[value]; |
7d12e780 | 664 | k_deadunicode(vc, value, up_flag); |
1da177e4 LT |
665 | } |
666 | ||
7d12e780 | 667 | static void k_cons(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
668 | { |
669 | if (up_flag) | |
670 | return; | |
671 | set_console(value); | |
672 | } | |
673 | ||
7d12e780 | 674 | static void k_fn(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
675 | { |
676 | unsigned v; | |
677 | ||
678 | if (up_flag) | |
679 | return; | |
680 | v = value; | |
681 | if (v < ARRAY_SIZE(func_table)) { | |
682 | if (func_table[value]) | |
683 | puts_queue(vc, func_table[value]); | |
684 | } else | |
685 | printk(KERN_ERR "k_fn called with value=%d\n", value); | |
686 | } | |
687 | ||
7d12e780 | 688 | static void k_cur(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 689 | { |
e52b29c2 | 690 | static const char cur_chars[] = "BDCA"; |
1da177e4 LT |
691 | |
692 | if (up_flag) | |
693 | return; | |
694 | applkey(vc, cur_chars[value], vc_kbd_mode(kbd, VC_CKMODE)); | |
695 | } | |
696 | ||
7d12e780 | 697 | static void k_pad(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 698 | { |
0f5e560e AM |
699 | static const char pad_chars[] = "0123456789+-*/\015,.?()#"; |
700 | static const char app_map[] = "pqrstuvwxylSRQMnnmPQS"; | |
1da177e4 LT |
701 | |
702 | if (up_flag) | |
703 | return; /* no action, if this is a key release */ | |
704 | ||
705 | /* kludge... shift forces cursor/number keys */ | |
706 | if (vc_kbd_mode(kbd, VC_APPLIC) && !shift_down[KG_SHIFT]) { | |
707 | applkey(vc, app_map[value], 1); | |
708 | return; | |
709 | } | |
710 | ||
711 | if (!vc_kbd_led(kbd, VC_NUMLOCK)) | |
712 | switch (value) { | |
713 | case KVAL(K_PCOMMA): | |
714 | case KVAL(K_PDOT): | |
7d12e780 | 715 | k_fn(vc, KVAL(K_REMOVE), 0); |
1da177e4 LT |
716 | return; |
717 | case KVAL(K_P0): | |
7d12e780 | 718 | k_fn(vc, KVAL(K_INSERT), 0); |
1da177e4 LT |
719 | return; |
720 | case KVAL(K_P1): | |
7d12e780 | 721 | k_fn(vc, KVAL(K_SELECT), 0); |
1da177e4 LT |
722 | return; |
723 | case KVAL(K_P2): | |
7d12e780 | 724 | k_cur(vc, KVAL(K_DOWN), 0); |
1da177e4 LT |
725 | return; |
726 | case KVAL(K_P3): | |
7d12e780 | 727 | k_fn(vc, KVAL(K_PGDN), 0); |
1da177e4 LT |
728 | return; |
729 | case KVAL(K_P4): | |
7d12e780 | 730 | k_cur(vc, KVAL(K_LEFT), 0); |
1da177e4 LT |
731 | return; |
732 | case KVAL(K_P6): | |
7d12e780 | 733 | k_cur(vc, KVAL(K_RIGHT), 0); |
1da177e4 LT |
734 | return; |
735 | case KVAL(K_P7): | |
7d12e780 | 736 | k_fn(vc, KVAL(K_FIND), 0); |
1da177e4 LT |
737 | return; |
738 | case KVAL(K_P8): | |
7d12e780 | 739 | k_cur(vc, KVAL(K_UP), 0); |
1da177e4 LT |
740 | return; |
741 | case KVAL(K_P9): | |
7d12e780 | 742 | k_fn(vc, KVAL(K_PGUP), 0); |
1da177e4 LT |
743 | return; |
744 | case KVAL(K_P5): | |
745 | applkey(vc, 'G', vc_kbd_mode(kbd, VC_APPLIC)); | |
746 | return; | |
747 | } | |
748 | ||
749 | put_queue(vc, pad_chars[value]); | |
750 | if (value == KVAL(K_PENTER) && vc_kbd_mode(kbd, VC_CRLF)) | |
751 | put_queue(vc, 10); | |
752 | } | |
753 | ||
7d12e780 | 754 | static void k_shift(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
755 | { |
756 | int old_state = shift_state; | |
757 | ||
758 | if (rep) | |
759 | return; | |
760 | /* | |
761 | * Mimic typewriter: | |
762 | * a CapsShift key acts like Shift but undoes CapsLock | |
763 | */ | |
764 | if (value == KVAL(K_CAPSSHIFT)) { | |
765 | value = KVAL(K_SHIFT); | |
766 | if (!up_flag) | |
767 | clr_vc_kbd_led(kbd, VC_CAPSLOCK); | |
768 | } | |
769 | ||
770 | if (up_flag) { | |
771 | /* | |
772 | * handle the case that two shift or control | |
773 | * keys are depressed simultaneously | |
774 | */ | |
775 | if (shift_down[value]) | |
776 | shift_down[value]--; | |
777 | } else | |
778 | shift_down[value]++; | |
779 | ||
780 | if (shift_down[value]) | |
781 | shift_state |= (1 << value); | |
782 | else | |
783 | shift_state &= ~(1 << value); | |
784 | ||
785 | /* kludge */ | |
786 | if (up_flag && shift_state != old_state && npadch != -1) { | |
787 | if (kbd->kbdmode == VC_UNICODE) | |
759448f4 | 788 | to_utf8(vc, npadch); |
1da177e4 LT |
789 | else |
790 | put_queue(vc, npadch & 0xff); | |
791 | npadch = -1; | |
792 | } | |
793 | } | |
794 | ||
7d12e780 | 795 | static void k_meta(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
796 | { |
797 | if (up_flag) | |
798 | return; | |
799 | ||
800 | if (vc_kbd_mode(kbd, VC_META)) { | |
801 | put_queue(vc, '\033'); | |
802 | put_queue(vc, value); | |
803 | } else | |
804 | put_queue(vc, value | 0x80); | |
805 | } | |
806 | ||
7d12e780 | 807 | static void k_ascii(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
808 | { |
809 | int base; | |
810 | ||
811 | if (up_flag) | |
812 | return; | |
813 | ||
814 | if (value < 10) { | |
815 | /* decimal input of code, while Alt depressed */ | |
816 | base = 10; | |
817 | } else { | |
818 | /* hexadecimal input of code, while AltGr depressed */ | |
819 | value -= 10; | |
820 | base = 16; | |
821 | } | |
822 | ||
823 | if (npadch == -1) | |
824 | npadch = value; | |
825 | else | |
826 | npadch = npadch * base + value; | |
827 | } | |
828 | ||
7d12e780 | 829 | static void k_lock(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 LT |
830 | { |
831 | if (up_flag || rep) | |
832 | return; | |
833 | chg_vc_kbd_lock(kbd, value); | |
834 | } | |
835 | ||
7d12e780 | 836 | static void k_slock(struct vc_data *vc, unsigned char value, char up_flag) |
1da177e4 | 837 | { |
7d12e780 | 838 | k_shift(vc, value, up_flag); |
1da177e4 LT |
839 | if (up_flag || rep) |
840 | return; | |
841 | chg_vc_kbd_slock(kbd, value); | |
842 | /* try to make Alt, oops, AltGr and such work */ | |
843 | if (!key_maps[kbd->lockstate ^ kbd->slockstate]) { | |
844 | kbd->slockstate = 0; | |
845 | chg_vc_kbd_slock(kbd, value); | |
846 | } | |
847 | } | |
848 | ||
b9ec4e10 | 849 | /* by default, 300ms interval for combination release */ |
77426d72 ST |
850 | static unsigned brl_timeout = 300; |
851 | MODULE_PARM_DESC(brl_timeout, "Braille keys release delay in ms (0 for commit on first key release)"); | |
852 | module_param(brl_timeout, uint, 0644); | |
853 | ||
854 | static unsigned brl_nbchords = 1; | |
855 | MODULE_PARM_DESC(brl_nbchords, "Number of chords that produce a braille pattern (0 for dead chords)"); | |
856 | module_param(brl_nbchords, uint, 0644); | |
857 | ||
7d12e780 | 858 | static void k_brlcommit(struct vc_data *vc, unsigned int pattern, char up_flag) |
77426d72 ST |
859 | { |
860 | static unsigned long chords; | |
861 | static unsigned committed; | |
862 | ||
863 | if (!brl_nbchords) | |
7d12e780 | 864 | k_deadunicode(vc, BRL_UC_ROW | pattern, up_flag); |
77426d72 ST |
865 | else { |
866 | committed |= pattern; | |
867 | chords++; | |
868 | if (chords == brl_nbchords) { | |
7d12e780 | 869 | k_unicode(vc, BRL_UC_ROW | committed, up_flag); |
77426d72 ST |
870 | chords = 0; |
871 | committed = 0; | |
872 | } | |
873 | } | |
874 | } | |
875 | ||
7d12e780 | 876 | static void k_brl(struct vc_data *vc, unsigned char value, char up_flag) |
b9ec4e10 ST |
877 | { |
878 | static unsigned pressed,committing; | |
879 | static unsigned long releasestart; | |
880 | ||
881 | if (kbd->kbdmode != VC_UNICODE) { | |
882 | if (!up_flag) | |
883 | printk("keyboard mode must be unicode for braille patterns\n"); | |
884 | return; | |
885 | } | |
886 | ||
887 | if (!value) { | |
7d12e780 | 888 | k_unicode(vc, BRL_UC_ROW, up_flag); |
b9ec4e10 ST |
889 | return; |
890 | } | |
891 | ||
892 | if (value > 8) | |
893 | return; | |
894 | ||
b9ec4e10 ST |
895 | if (up_flag) { |
896 | if (brl_timeout) { | |
897 | if (!committing || | |
898 | jiffies - releasestart > (brl_timeout * HZ) / 1000) { | |
899 | committing = pressed; | |
900 | releasestart = jiffies; | |
901 | } | |
902 | pressed &= ~(1 << (value - 1)); | |
903 | if (!pressed) { | |
904 | if (committing) { | |
7d12e780 | 905 | k_brlcommit(vc, committing, 0); |
b9ec4e10 ST |
906 | committing = 0; |
907 | } | |
908 | } | |
909 | } else { | |
910 | if (committing) { | |
7d12e780 | 911 | k_brlcommit(vc, committing, 0); |
b9ec4e10 ST |
912 | committing = 0; |
913 | } | |
914 | pressed &= ~(1 << (value - 1)); | |
915 | } | |
916 | } else { | |
917 | pressed |= 1 << (value - 1); | |
918 | if (!brl_timeout) | |
919 | committing = pressed; | |
920 | } | |
921 | } | |
922 | ||
1da177e4 LT |
923 | /* |
924 | * The leds display either (i) the status of NumLock, CapsLock, ScrollLock, | |
925 | * or (ii) whatever pattern of lights people want to show using KDSETLED, | |
926 | * or (iii) specified bits of specified words in kernel memory. | |
927 | */ | |
928 | unsigned char getledstate(void) | |
929 | { | |
930 | return ledstate; | |
931 | } | |
932 | ||
933 | void setledstate(struct kbd_struct *kbd, unsigned int led) | |
934 | { | |
935 | if (!(led & ~7)) { | |
936 | ledioctl = led; | |
937 | kbd->ledmode = LED_SHOW_IOCTL; | |
938 | } else | |
939 | kbd->ledmode = LED_SHOW_FLAGS; | |
940 | set_leds(); | |
941 | } | |
942 | ||
943 | static inline unsigned char getleds(void) | |
944 | { | |
945 | struct kbd_struct *kbd = kbd_table + fg_console; | |
946 | unsigned char leds; | |
947 | int i; | |
948 | ||
949 | if (kbd->ledmode == LED_SHOW_IOCTL) | |
950 | return ledioctl; | |
951 | ||
952 | leds = kbd->ledflagstate; | |
953 | ||
954 | if (kbd->ledmode == LED_SHOW_MEM) { | |
955 | for (i = 0; i < 3; i++) | |
956 | if (ledptrs[i].valid) { | |
957 | if (*ledptrs[i].addr & ledptrs[i].mask) | |
958 | leds |= (1 << i); | |
959 | else | |
960 | leds &= ~(1 << i); | |
961 | } | |
962 | } | |
963 | return leds; | |
964 | } | |
965 | ||
966 | /* | |
967 | * This routine is the bottom half of the keyboard interrupt | |
968 | * routine, and runs with all interrupts enabled. It does | |
969 | * console changing, led setting and copy_to_cooked, which can | |
970 | * take a reasonably long time. | |
971 | * | |
972 | * Aside from timing (which isn't really that important for | |
973 | * keyboard interrupts as they happen often), using the software | |
974 | * interrupt routines for this thing allows us to easily mask | |
975 | * this when we don't want any of the above to happen. | |
976 | * This allows for easy and efficient race-condition prevention | |
0e739d28 | 977 | * for kbd_start => input_inject_event(dev, EV_LED, ...) => ... |
1da177e4 LT |
978 | */ |
979 | ||
980 | static void kbd_bh(unsigned long dummy) | |
981 | { | |
fe1e8604 | 982 | struct list_head *node; |
1da177e4 LT |
983 | unsigned char leds = getleds(); |
984 | ||
985 | if (leds != ledstate) { | |
fe1e8604 | 986 | list_for_each(node, &kbd_handler.h_list) { |
0e739d28 DT |
987 | struct input_handle *handle = to_handle_h(node); |
988 | input_inject_event(handle, EV_LED, LED_SCROLLL, !!(leds & 0x01)); | |
989 | input_inject_event(handle, EV_LED, LED_NUML, !!(leds & 0x02)); | |
990 | input_inject_event(handle, EV_LED, LED_CAPSL, !!(leds & 0x04)); | |
991 | input_inject_event(handle, EV_SYN, SYN_REPORT, 0); | |
1da177e4 LT |
992 | } |
993 | } | |
994 | ||
995 | ledstate = leds; | |
996 | } | |
997 | ||
998 | DECLARE_TASKLET_DISABLED(keyboard_tasklet, kbd_bh, 0); | |
999 | ||
1da177e4 | 1000 | #if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_ALPHA) ||\ |
0b57ee9e AB |
1001 | defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_SPARC) ||\ |
1002 | defined(CONFIG_PARISC) || defined(CONFIG_SUPERH) ||\ | |
1da177e4 LT |
1003 | (defined(CONFIG_ARM) && defined(CONFIG_KEYBOARD_ATKBD) && !defined(CONFIG_ARCH_RPC)) |
1004 | ||
1005 | #define HW_RAW(dev) (test_bit(EV_MSC, dev->evbit) && test_bit(MSC_RAW, dev->mscbit) &&\ | |
1006 | ((dev)->id.bustype == BUS_I8042) && ((dev)->id.vendor == 0x0001) && ((dev)->id.product == 0x0001)) | |
1007 | ||
0f5e560e | 1008 | static const unsigned short x86_keycodes[256] = |
1da177e4 LT |
1009 | { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, |
1010 | 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, | |
1011 | 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, | |
1012 | 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, | |
1013 | 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, | |
1014 | 80, 81, 82, 83, 84,118, 86, 87, 88,115,120,119,121,112,123, 92, | |
896cdc7b | 1015 | 284,285,309, 0,312, 91,327,328,329,331,333,335,336,337,338,339, |
1da177e4 LT |
1016 | 367,288,302,304,350, 89,334,326,267,126,268,269,125,347,348,349, |
1017 | 360,261,262,263,268,376,100,101,321,316,373,286,289,102,351,355, | |
72a42f24 HG |
1018 | 103,104,105,275,287,279,258,106,274,107,294,364,358,363,362,361, |
1019 | 291,108,381,281,290,272,292,305,280, 99,112,257,306,359,113,114, | |
1da177e4 LT |
1020 | 264,117,271,374,379,265,266, 93, 94, 95, 85,259,375,260, 90,116, |
1021 | 377,109,111,277,278,282,283,295,296,297,299,300,301,293,303,307, | |
1022 | 308,310,313,314,315,317,318,319,320,357,322,323,324,325,276,330, | |
1023 | 332,340,365,342,343,344,345,346,356,270,341,368,369,370,371,372 }; | |
1024 | ||
1025 | #ifdef CONFIG_MAC_EMUMOUSEBTN | |
1026 | extern int mac_hid_mouse_emulate_buttons(int, int, int); | |
1027 | #endif /* CONFIG_MAC_EMUMOUSEBTN */ | |
1028 | ||
0b57ee9e | 1029 | #ifdef CONFIG_SPARC |
1da177e4 LT |
1030 | static int sparc_l1_a_state = 0; |
1031 | extern void sun_do_break(void); | |
1032 | #endif | |
1033 | ||
fe1e8604 | 1034 | static int emulate_raw(struct vc_data *vc, unsigned int keycode, |
1da177e4 LT |
1035 | unsigned char up_flag) |
1036 | { | |
896cdc7b | 1037 | int code; |
1da177e4 LT |
1038 | |
1039 | switch (keycode) { | |
1040 | case KEY_PAUSE: | |
1041 | put_queue(vc, 0xe1); | |
1042 | put_queue(vc, 0x1d | up_flag); | |
1043 | put_queue(vc, 0x45 | up_flag); | |
896cdc7b DT |
1044 | break; |
1045 | ||
b9ab58dd | 1046 | case KEY_HANGEUL: |
0ae051a1 DT |
1047 | if (!up_flag) |
1048 | put_queue(vc, 0xf2); | |
896cdc7b DT |
1049 | break; |
1050 | ||
1da177e4 | 1051 | case KEY_HANJA: |
0ae051a1 DT |
1052 | if (!up_flag) |
1053 | put_queue(vc, 0xf1); | |
896cdc7b | 1054 | break; |
1da177e4 | 1055 | |
896cdc7b DT |
1056 | case KEY_SYSRQ: |
1057 | /* | |
1058 | * Real AT keyboards (that's what we're trying | |
1059 | * to emulate here emit 0xe0 0x2a 0xe0 0x37 when | |
1060 | * pressing PrtSc/SysRq alone, but simply 0x54 | |
1061 | * when pressing Alt+PrtSc/SysRq. | |
1062 | */ | |
1063 | if (sysrq_alt) { | |
1064 | put_queue(vc, 0x54 | up_flag); | |
1065 | } else { | |
1066 | put_queue(vc, 0xe0); | |
1067 | put_queue(vc, 0x2a | up_flag); | |
1068 | put_queue(vc, 0xe0); | |
1069 | put_queue(vc, 0x37 | up_flag); | |
1070 | } | |
1071 | break; | |
1072 | ||
1073 | default: | |
1074 | if (keycode > 255) | |
1075 | return -1; | |
1da177e4 | 1076 | |
896cdc7b DT |
1077 | code = x86_keycodes[keycode]; |
1078 | if (!code) | |
1079 | return -1; | |
1da177e4 | 1080 | |
896cdc7b DT |
1081 | if (code & 0x100) |
1082 | put_queue(vc, 0xe0); | |
1083 | put_queue(vc, (code & 0x7f) | up_flag); | |
1da177e4 | 1084 | |
896cdc7b | 1085 | break; |
1da177e4 LT |
1086 | } |
1087 | ||
1088 | return 0; | |
1089 | } | |
1090 | ||
1091 | #else | |
1092 | ||
1093 | #define HW_RAW(dev) 0 | |
1094 | ||
1095 | #warning "Cannot generate rawmode keyboard for your architecture yet." | |
1096 | ||
1097 | static int emulate_raw(struct vc_data *vc, unsigned int keycode, unsigned char up_flag) | |
1098 | { | |
1099 | if (keycode > 127) | |
1100 | return -1; | |
1101 | ||
1102 | put_queue(vc, keycode | up_flag); | |
1103 | return 0; | |
1104 | } | |
1105 | #endif | |
1106 | ||
1107 | static void kbd_rawcode(unsigned char data) | |
1108 | { | |
1109 | struct vc_data *vc = vc_cons[fg_console].d; | |
1110 | kbd = kbd_table + fg_console; | |
1111 | if (kbd->kbdmode == VC_RAW) | |
1112 | put_queue(vc, data); | |
1113 | } | |
1114 | ||
7d12e780 | 1115 | static void kbd_keycode(unsigned int keycode, int down, int hw_raw) |
1da177e4 LT |
1116 | { |
1117 | struct vc_data *vc = vc_cons[fg_console].d; | |
1118 | unsigned short keysym, *key_map; | |
1119 | unsigned char type, raw_mode; | |
1120 | struct tty_struct *tty; | |
1121 | int shift_final; | |
1122 | ||
1123 | tty = vc->vc_tty; | |
1124 | ||
1125 | if (tty && (!tty->driver_data)) { | |
1126 | /* No driver data? Strange. Okay we fix it then. */ | |
1127 | tty->driver_data = vc; | |
1128 | } | |
1129 | ||
1130 | kbd = kbd_table + fg_console; | |
1131 | ||
1132 | if (keycode == KEY_LEFTALT || keycode == KEY_RIGHTALT) | |
d2be8ee5 | 1133 | sysrq_alt = down ? keycode : 0; |
0b57ee9e | 1134 | #ifdef CONFIG_SPARC |
1da177e4 LT |
1135 | if (keycode == KEY_STOP) |
1136 | sparc_l1_a_state = down; | |
1137 | #endif | |
1138 | ||
1139 | rep = (down == 2); | |
1140 | ||
1141 | #ifdef CONFIG_MAC_EMUMOUSEBTN | |
1142 | if (mac_hid_mouse_emulate_buttons(1, keycode, down)) | |
1143 | return; | |
1144 | #endif /* CONFIG_MAC_EMUMOUSEBTN */ | |
1145 | ||
1146 | if ((raw_mode = (kbd->kbdmode == VC_RAW)) && !hw_raw) | |
1147 | if (emulate_raw(vc, keycode, !down << 7)) | |
9e35d206 | 1148 | if (keycode < BTN_MISC && printk_ratelimit()) |
1da177e4 LT |
1149 | printk(KERN_WARNING "keyboard.c: can't emulate rawmode for keycode %d\n", keycode); |
1150 | ||
1151 | #ifdef CONFIG_MAGIC_SYSRQ /* Handle the SysRq Hack */ | |
1152 | if (keycode == KEY_SYSRQ && (sysrq_down || (down == 1 && sysrq_alt))) { | |
d2be8ee5 FR |
1153 | if (!sysrq_down) { |
1154 | sysrq_down = down; | |
1155 | sysrq_alt_use = sysrq_alt; | |
1156 | } | |
1da177e4 LT |
1157 | return; |
1158 | } | |
d2be8ee5 FR |
1159 | if (sysrq_down && !down && keycode == sysrq_alt_use) |
1160 | sysrq_down = 0; | |
1da177e4 | 1161 | if (sysrq_down && down && !rep) { |
7d12e780 | 1162 | handle_sysrq(kbd_sysrq_xlate[keycode], tty); |
1da177e4 LT |
1163 | return; |
1164 | } | |
1165 | #endif | |
0b57ee9e | 1166 | #ifdef CONFIG_SPARC |
1da177e4 LT |
1167 | if (keycode == KEY_A && sparc_l1_a_state) { |
1168 | sparc_l1_a_state = 0; | |
1169 | sun_do_break(); | |
1170 | } | |
1171 | #endif | |
1172 | ||
1173 | if (kbd->kbdmode == VC_MEDIUMRAW) { | |
1174 | /* | |
1175 | * This is extended medium raw mode, with keys above 127 | |
1176 | * encoded as 0, high 7 bits, low 7 bits, with the 0 bearing | |
1177 | * the 'up' flag if needed. 0 is reserved, so this shouldn't | |
1178 | * interfere with anything else. The two bytes after 0 will | |
1179 | * always have the up flag set not to interfere with older | |
1180 | * applications. This allows for 16384 different keycodes, | |
1181 | * which should be enough. | |
1182 | */ | |
1183 | if (keycode < 128) { | |
1184 | put_queue(vc, keycode | (!down << 7)); | |
1185 | } else { | |
1186 | put_queue(vc, !down << 7); | |
1187 | put_queue(vc, (keycode >> 7) | 0x80); | |
1188 | put_queue(vc, keycode | 0x80); | |
1189 | } | |
1190 | raw_mode = 1; | |
1191 | } | |
1192 | ||
1193 | if (down) | |
1194 | set_bit(keycode, key_down); | |
1195 | else | |
1196 | clear_bit(keycode, key_down); | |
1197 | ||
fe1e8604 DT |
1198 | if (rep && |
1199 | (!vc_kbd_mode(kbd, VC_REPEAT) || | |
1200 | (tty && !L_ECHO(tty) && tty->driver->chars_in_buffer(tty)))) { | |
1da177e4 LT |
1201 | /* |
1202 | * Don't repeat a key if the input buffers are not empty and the | |
fe1e8604 | 1203 | * characters get aren't echoed locally. This makes key repeat |
1da177e4 LT |
1204 | * usable with slow applications and under heavy loads. |
1205 | */ | |
1206 | return; | |
1207 | } | |
1208 | ||
1209 | shift_final = (shift_state | kbd->slockstate) ^ kbd->lockstate; | |
1210 | key_map = key_maps[shift_final]; | |
1211 | ||
1212 | if (!key_map) { | |
1213 | compute_shiftstate(); | |
1214 | kbd->slockstate = 0; | |
1215 | return; | |
1216 | } | |
1217 | ||
1218 | if (keycode > NR_KEYS) | |
b9ec4e10 ST |
1219 | if (keycode >= KEY_BRL_DOT1 && keycode <= KEY_BRL_DOT8) |
1220 | keysym = K(KT_BRL, keycode - KEY_BRL_DOT1 + 1); | |
1221 | else | |
1222 | return; | |
1223 | else | |
1224 | keysym = key_map[keycode]; | |
1da177e4 | 1225 | |
1da177e4 LT |
1226 | type = KTYP(keysym); |
1227 | ||
1228 | if (type < 0xf0) { | |
fe1e8604 DT |
1229 | if (down && !raw_mode) |
1230 | to_utf8(vc, keysym); | |
1da177e4 LT |
1231 | return; |
1232 | } | |
1233 | ||
1234 | type -= 0xf0; | |
1235 | ||
1236 | if (raw_mode && type != KT_SPEC && type != KT_SHIFT) | |
1237 | return; | |
1238 | ||
1239 | if (type == KT_LETTER) { | |
1240 | type = KT_LATIN; | |
1241 | if (vc_kbd_led(kbd, VC_CAPSLOCK)) { | |
1242 | key_map = key_maps[shift_final ^ (1 << KG_SHIFT)]; | |
1243 | if (key_map) | |
1244 | keysym = key_map[keycode]; | |
1245 | } | |
1246 | } | |
1247 | ||
7d12e780 | 1248 | (*k_handler[type])(vc, keysym & 0xff, !down); |
1da177e4 LT |
1249 | |
1250 | if (type != KT_SLOCK) | |
1251 | kbd->slockstate = 0; | |
1252 | } | |
1253 | ||
fe1e8604 | 1254 | static void kbd_event(struct input_handle *handle, unsigned int event_type, |
1da177e4 LT |
1255 | unsigned int event_code, int value) |
1256 | { | |
1257 | if (event_type == EV_MSC && event_code == MSC_RAW && HW_RAW(handle->dev)) | |
1258 | kbd_rawcode(value); | |
1259 | if (event_type == EV_KEY) | |
7d12e780 | 1260 | kbd_keycode(event_code, value, HW_RAW(handle->dev)); |
1da177e4 LT |
1261 | tasklet_schedule(&keyboard_tasklet); |
1262 | do_poke_blanked_console = 1; | |
1263 | schedule_console_callback(); | |
1264 | } | |
1265 | ||
1da177e4 LT |
1266 | /* |
1267 | * When a keyboard (or other input device) is found, the kbd_connect | |
1268 | * function is called. The function then looks at the device, and if it | |
1269 | * likes it, it can open it and get events from it. In this (kbd_connect) | |
1270 | * function, we should decide which VT to bind that keyboard to initially. | |
1271 | */ | |
5b2a0826 DT |
1272 | static int kbd_connect(struct input_handler *handler, struct input_dev *dev, |
1273 | const struct input_device_id *id) | |
1da177e4 LT |
1274 | { |
1275 | struct input_handle *handle; | |
5b2a0826 | 1276 | int error; |
1da177e4 LT |
1277 | int i; |
1278 | ||
1279 | for (i = KEY_RESERVED; i < BTN_MISC; i++) | |
fe1e8604 DT |
1280 | if (test_bit(i, dev->keybit)) |
1281 | break; | |
1da177e4 | 1282 | |
fe1e8604 | 1283 | if (i == BTN_MISC && !test_bit(EV_SND, dev->evbit)) |
5b2a0826 | 1284 | return -ENODEV; |
1da177e4 | 1285 | |
22479e1c DT |
1286 | handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL); |
1287 | if (!handle) | |
5b2a0826 | 1288 | return -ENOMEM; |
1da177e4 LT |
1289 | |
1290 | handle->dev = dev; | |
1291 | handle->handler = handler; | |
fe1e8604 | 1292 | handle->name = "kbd"; |
1da177e4 | 1293 | |
5b2a0826 DT |
1294 | error = input_register_handle(handle); |
1295 | if (error) | |
1296 | goto err_free_handle; | |
1da177e4 | 1297 | |
5b2a0826 DT |
1298 | error = input_open_device(handle); |
1299 | if (error) | |
1300 | goto err_unregister_handle; | |
1301 | ||
1302 | return 0; | |
1303 | ||
1304 | err_unregister_handle: | |
1305 | input_unregister_handle(handle); | |
1306 | err_free_handle: | |
1307 | kfree(handle); | |
1308 | return error; | |
1da177e4 LT |
1309 | } |
1310 | ||
1311 | static void kbd_disconnect(struct input_handle *handle) | |
1312 | { | |
1313 | input_close_device(handle); | |
5b2a0826 | 1314 | input_unregister_handle(handle); |
1da177e4 LT |
1315 | kfree(handle); |
1316 | } | |
1317 | ||
c7e8dc6e DT |
1318 | /* |
1319 | * Start keyboard handler on the new keyboard by refreshing LED state to | |
1320 | * match the rest of the system. | |
1321 | */ | |
1322 | static void kbd_start(struct input_handle *handle) | |
1323 | { | |
1324 | unsigned char leds = ledstate; | |
1325 | ||
1326 | tasklet_disable(&keyboard_tasklet); | |
1327 | if (leds != 0xff) { | |
0e739d28 DT |
1328 | input_inject_event(handle, EV_LED, LED_SCROLLL, !!(leds & 0x01)); |
1329 | input_inject_event(handle, EV_LED, LED_NUML, !!(leds & 0x02)); | |
1330 | input_inject_event(handle, EV_LED, LED_CAPSL, !!(leds & 0x04)); | |
1331 | input_inject_event(handle, EV_SYN, SYN_REPORT, 0); | |
c7e8dc6e DT |
1332 | } |
1333 | tasklet_enable(&keyboard_tasklet); | |
1334 | } | |
1335 | ||
66e66118 | 1336 | static const struct input_device_id kbd_ids[] = { |
1da177e4 LT |
1337 | { |
1338 | .flags = INPUT_DEVICE_ID_MATCH_EVBIT, | |
1339 | .evbit = { BIT(EV_KEY) }, | |
1340 | }, | |
fe1e8604 | 1341 | |
1da177e4 LT |
1342 | { |
1343 | .flags = INPUT_DEVICE_ID_MATCH_EVBIT, | |
1344 | .evbit = { BIT(EV_SND) }, | |
fe1e8604 | 1345 | }, |
1da177e4 LT |
1346 | |
1347 | { }, /* Terminating entry */ | |
1348 | }; | |
1349 | ||
1350 | MODULE_DEVICE_TABLE(input, kbd_ids); | |
1351 | ||
1352 | static struct input_handler kbd_handler = { | |
1353 | .event = kbd_event, | |
1354 | .connect = kbd_connect, | |
1355 | .disconnect = kbd_disconnect, | |
c7e8dc6e | 1356 | .start = kbd_start, |
1da177e4 LT |
1357 | .name = "kbd", |
1358 | .id_table = kbd_ids, | |
1359 | }; | |
1360 | ||
1361 | int __init kbd_init(void) | |
1362 | { | |
1363 | int i; | |
4263cf0f | 1364 | int error; |
1da177e4 | 1365 | |
2b192908 DT |
1366 | for (i = 0; i < MAX_NR_CONSOLES; i++) { |
1367 | kbd_table[i].ledflagstate = KBD_DEFLEDS; | |
1368 | kbd_table[i].default_ledflagstate = KBD_DEFLEDS; | |
1369 | kbd_table[i].ledmode = LED_SHOW_FLAGS; | |
1370 | kbd_table[i].lockstate = KBD_DEFLOCK; | |
1371 | kbd_table[i].slockstate = 0; | |
1372 | kbd_table[i].modeflags = KBD_DEFMODE; | |
1373 | kbd_table[i].kbdmode = VC_XLATE; | |
1374 | } | |
1da177e4 | 1375 | |
4263cf0f DT |
1376 | error = input_register_handler(&kbd_handler); |
1377 | if (error) | |
1378 | return error; | |
1da177e4 LT |
1379 | |
1380 | tasklet_enable(&keyboard_tasklet); | |
1381 | tasklet_schedule(&keyboard_tasklet); | |
1382 | ||
1383 | return 0; | |
1384 | } |